CN109637492B - Display panel driving method and device and display equipment - Google Patents
Display panel driving method and device and display equipment Download PDFInfo
- Publication number
- CN109637492B CN109637492B CN201910095270.8A CN201910095270A CN109637492B CN 109637492 B CN109637492 B CN 109637492B CN 201910095270 A CN201910095270 A CN 201910095270A CN 109637492 B CN109637492 B CN 109637492B
- Authority
- CN
- China
- Prior art keywords
- sub
- pixel
- voltage
- driving
- data line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000000737 periodic effect Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a driving method, a driving device and a display device of a display panel, wherein when the current time sequence is a first preset time sequence, negative polarity driving is carried out on a high-voltage sub-pixel and a low-voltage sub-pixel by adopting a negative polarity common electrode voltage of a preset voltage; the high-voltage sub-pixels receive positive-polarity driving voltage output by the first data line, the low-voltage sub-pixels receive negative-polarity driving voltage output by the second data line, the same data line is adopted for same-polarity driving, so that the frequent driving of the same data line polarity can be avoided, the power consumption of the driving integrated circuit can be reduced, the temperature lifting risk is reduced, the visual angle color cast is solved, the defect of reduced resolution is avoided, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of liquid crystal displays, and in particular, to a method and an apparatus for driving a display panel, and a display device.
Background
Large-sized liquid crystal display panels mostly adopt a negative Vertical Alignment (VA) type or an in-plane switching (IPS) type. The VA liquid crystal technology has the advantages of higher production efficiency and lower manufacturing cost compared to the IPS liquid crystal technology, but has more obvious optical property defects compared to the IPS liquid crystal technology, for example, when a large-viewing-angle image is displayed, the VA liquid crystal display panel has color cast. When displaying an image, the luminance of the pixel should ideally change linearly with the voltage, so that the driving voltage of the pixel can accurately represent the gray scale of the pixel and be represented by the luminance. As shown in fig. 1a, when the VA mode liquid crystal technology is used, when the display surface is viewed with a small viewing angle (for example, front view), the brightness of the pixel can be in accordance with the ideal situation, i.e. it is linearly changed with the voltage, as shown by the ideal curve in fig. 1 a; however, when the display surface is viewed at a larger viewing angle (for example, over 160 degrees from the display surface), the brightness of the pixel exhibits a fast saturation with voltage and then a slow change due to the principle of the VA-mode liquid crystal technology, as shown in the actual curve of fig. 1 a. Thus, in a large viewing angle, the gray scale that the driving voltage should originally exhibit is greatly deviated, i.e., color shift occurs. The conventional way to improve color shift is to subdivide each sub-pixel into a main pixel and a sub-pixel, then drive the main pixel with a relatively high driving voltage and drive the sub-pixel with a relatively low driving voltage, and the main pixel and the sub-pixel together display one sub-pixel. And the relatively high driving voltage and the relatively low driving voltage can keep the relation between the brightness at the front viewing angle and the corresponding gray scale unchanged when the main pixel and the sub-pixel are driven. Generally, in the manner shown in fig. 1b, in the first half of the gray scale, the main pixel is driven to display by a relatively high driving voltage, the sub-pixel is not displayed, and the brightness of the whole sub-pixel is half of the brightness of the main pixel; in the second half of the gray scale, the main pixel is driven to display by a relatively high driving voltage, the sub-pixel is driven to display by a relatively low driving voltage, and the brightness of the whole sub-pixel is half of the sum of the brightness of the main pixel and the brightness of the sub-pixel. Thus, the luminance curve at large viewing angle is similar to the actual curve in fig. 1b, and the color shift is improved at large viewing angle.
However, the above method has a problem that new metal lines and Thin Film Transistors (TFTs) are required to be added to drive the sub-pixels, which results in the sacrifice of the light-permeable opening area, the influence on the light transmittance of the panel, and the direct increase of the backlight cost.
Disclosure of Invention
The invention mainly aims to provide a driving method and a driving device of a display panel and display equipment, and aims to solve the problems that a light-permeable opening area is sacrificed, the light transmittance of the panel is influenced, and the backlight cost is higher in the prior art.
In order to achieve the above object, the present invention provides a driving method of a display panel, including:
the display panel comprises a display array, the display array comprises pixel units which are arranged in an array mode, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driving method includes:
when the current time sequence is a first preset time sequence, carrying out negative polarity driving on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a negative polarity common electrode voltage of a preset voltage, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixels receive a positive polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive a negative polarity driving voltage output by the second data lines;
when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage;
when the current time sequence is switched from the first preset time sequence to the second preset time sequence, positive polarity driving is carried out on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting positive polarity common electrode voltage of preset voltage, wherein the preset voltage is larger than the original common electrode voltage, the high-voltage sub-pixels receive negative polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive positive polarity driving voltage output by the second data lines.
Optionally, before periodically inverting the preset voltage when receiving a data driving signal input by the data driving circuit for timing inversion, the driving method of the display panel further includes:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line;
and when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is low voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is high voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the negative polarity driving voltage output by the second data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the positive polarity driving voltage output by the first data line.
Optionally, after selecting any two adjacent pixel units in the column direction and obtaining the voltage state of the second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit, the driving method of the display panel further includes:
and when the preset voltage meets a preset condition, driving the equivalent driving voltage of the high-voltage sub-pixel and the low-voltage sub-pixel in the selected sub-pixels by adopting a preset data driving signal, wherein the preset data driving signal is an average signal of the driving signals of two adjacent sub-pixels in the original same column.
Optionally, after the preset voltage is periodically inverted when receiving a data driving signal input by the data driving circuit for timing inversion, the driving method of the display panel further includes:
two adjacent sub-pixels in the same row are respectively selected, and the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels is driven by the equivalent driving voltage which is larger than that of the low-voltage sub-pixel in the selected sub-pixels.
Optionally, the first sub-pixel, the second sub-pixel, and the third sub-pixel are sequentially a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolarity sub-pixels.
Optionally, the periodically inverting the preset voltage when receiving a data driving signal input by a data driving circuit for timing inversion includes:
when the preset voltage is driven in a negative polarity mode, the data driving signals input by the data driving circuit are driven in the negative polarity mode, when the data driving signals are subjected to time sequence inversion, the preset voltage is set to be driving voltages with opposite polarities to perform periodic inversion, and when the inverted preset voltage is driven in a positive polarity mode, the inverted data driving signals are driven in the positive polarity mode.
Optionally, the method for driving a display panel further includes, when the preset voltage is driven with a negative polarity, performing negative polarity driving on a data driving signal input by a data driving circuit, when the data driving signal is subjected to timing inversion, periodically inverting the preset voltage with a driving voltage with an opposite polarity, and when the inverted preset voltage is driven with a positive polarity, before performing positive polarity driving on the inverted data driving signal, the method for driving a display panel further includes:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, driving the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, and driving the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a low voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a high voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the negative polarity driving voltage output by the second data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the positive polarity driving voltage output by the first data line, the second sub-pixel in the second adjacent sub-pixel unit is driven by the positive polarity driving voltage output by the first data line, and the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit are driven by the negative polarity driving voltage output by the second data line.
In order to achieve the above object, the present invention also provides a driving apparatus for a display panel, comprising: the display device comprises a display array, a first light source and a second light source, wherein the display array comprises pixel units which are arranged in an array mode and are alternately arranged by a first pixel unit and a second pixel unit; the driving device of the display panel includes: the display device comprises a display array, a pixel unit and a control unit, wherein the display array comprises pixel units which are arranged in an array mode, the pixel units comprise first sub-pixels, second sub-pixels and third sub-pixels in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence;
the common electrode driving module is set to take the pixel units of at least three rows after scanning as a driving period, and the common electrodes of the sub-pixels in the pixel units are driven by adopting preset voltage in the current driving period;
the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with positive polarity and drive the low-voltage sub-pixels in the pixel units with negative polarity when the preset voltage is a negative polarity driving voltage, and the preset voltage is smaller than a reference voltage;
the inversion module is used for periodically inverting the preset voltage when receiving the inversion of a data driving signal input by the data driving circuit;
the driving device of the display panel includes:
the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with negative polarity and drive the low-voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, and the inverted preset voltage is greater than the reference voltage.
Further, to achieve the above object, the present invention also proposes a display device characterized by comprising: the display panel comprises a display array, the display array comprises pixel units which are arranged in an array, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driver of the display panel is configured to implement the steps of the driving method of the display panel as described above.
The driving method of the display panel provided by the invention adopts a negative polarity common electrode voltage of a preset voltage to carry out negative polarity driving on a high-voltage sub-pixel and a low-voltage sub-pixel when the current time sequence is a first preset time sequence, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixel receives a positive polarity driving voltage output by a first data line, and the low-voltage sub-pixel receives a negative polarity driving voltage output by a second data line; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage sub-pixels and the low-voltage sub-pixels are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixels receive a negative polarity driving voltage output by a first data line, the low-voltage sub-pixels receive a positive polarity driving voltage output by a second data line, the same polarity driving adopts the same data line, the frequent driving of the same data line polarity can be avoided, the power consumption of a driving integrated circuit can be reduced, the temperature rise risk of the driving integrated circuit is reduced, the driving data of the positive polarity driving voltage and the negative polarity driving voltage are respectively adopted for alternative driving, the visual angle color cast is solved, and the difference between the high-voltage sub-pixels and the low-voltage sub-pixels can not be obviously distinguished by, and the defect of reduced resolution is avoided, and the user experience is improved.
Drawings
FIG. 1a is a graph showing the relationship between an improved front color shift curve and an ideal curve;
FIG. 1b is a graph showing the relationship between the improved color shift curve and the ideal curve;
fig. 2 is a schematic structural diagram of a display device of a hardware operating environment according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a driving method of a display panel according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a pixel driving arrangement of a driving method of a display panel according to the present invention;
FIG. 5 is a schematic diagram of a first predetermined timing sequence of pixel driving according to the driving method of the display panel of the present invention;
FIG. 6 is a schematic structural diagram of a driving apparatus for a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a driving apparatus of a display panel according to another embodiment of the invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The solution of the embodiment of the invention is mainly as follows: when the current time sequence is a first preset time sequence, carrying out negative polarity driving on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a negative polarity common electrode voltage of a preset voltage, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixels receive a positive polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive a negative polarity driving voltage output by the second data lines; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage sub-pixels and the low-voltage sub-pixels are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixels receive a negative polarity driving voltage output by a first data line, the low-voltage sub-pixels receive a positive polarity driving voltage output by a second data line, the same polarity driving adopts the same data line, the frequent driving of the same data line polarity can be avoided, the power consumption of a driving integrated circuit can be reduced, the temperature rise risk of the driving integrated circuit is reduced, the driving data of the positive polarity driving voltage and the negative polarity driving voltage are respectively adopted for alternative driving, the visual angle color cast is solved, and the difference between the high-voltage sub-pixels and the low-voltage sub-pixels can not be obviously distinguished by, and the defect that the resolution is reduced is avoided, the user experience is improved, and the problems that the light-permeable opening area is sacrificed, the light transmittance of the panel is influenced and the backlight cost is higher in the prior art are solved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 2, the display apparatus may include: the processor 1001 includes, for example, a CPU, a communication bus 1002, a user interface 1003, a display panel 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The memory 1005 may be a high-speed RAM memory or a non-volatile memory (non-memory) such as a disk memory. The memory 1005 may also be a storage device independent of the processor 1001, and the display panel 1004 may be a liquid crystal display panel, or other display panels capable of implementing the same or similar functions.
Those skilled in the art will appreciate that the display device configuration shown in fig. 2 does not constitute a limitation of the display device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 2, a memory 1005, which is a kind of computer storage medium, may include a driver of the display panel therein.
The processor 1001 and the memory 1005 in the display device of the present invention may be provided in a display device which calls a driver of a display panel stored in the memory 1005 through the processor 1001 and performs the following operations:
when the current time sequence is a first preset time sequence, carrying out negative polarity driving on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a negative polarity common electrode voltage of a preset voltage, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixels receive a positive polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive a negative polarity driving voltage output by the second data lines;
when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage;
when the current time sequence is switched from the first preset time sequence to the second preset time sequence, positive polarity driving is carried out on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting positive polarity common electrode voltage of preset voltage, wherein the preset voltage is larger than the original common electrode voltage, the high-voltage sub-pixels receive negative polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive positive polarity driving voltage output by the second data lines.
Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line;
and when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is low voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is high voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the negative polarity driving voltage output by the second data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the positive polarity driving voltage output by the first data line.
Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:
and when the preset voltage meets a preset condition, driving the equivalent driving voltage of the high-voltage sub-pixel and the low-voltage sub-pixel in the selected sub-pixels by adopting a preset data driving signal, wherein the preset data driving signal is an average signal of the driving signals of two adjacent sub-pixels in the original same column.
Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:
two adjacent sub-pixels in the same row are respectively selected, and the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels is driven by the equivalent driving voltage which is larger than that of the low-voltage sub-pixel in the selected sub-pixels.
Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:
the first sub-pixel, the second sub-pixel and the third sub-pixel are sequentially a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel are heteropolarity sub-pixels.
Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, driving the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, and driving the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a low voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a high voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the negative polarity driving voltage output by the second data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the positive polarity driving voltage output by the first data line, the second sub-pixel in the second adjacent sub-pixel unit is driven by the positive polarity driving voltage output by the first data line, and the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit are driven by the negative polarity driving voltage output by the second data line.
In this embodiment, when the current timing sequence is a first preset timing sequence, a negative polarity common electrode voltage of a preset voltage is used for performing negative polarity driving on the high-voltage sub-pixel and the low-voltage sub-pixel, where the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixel receives a positive polarity driving voltage output by the first data line, and the low-voltage sub-pixel receives a negative polarity driving voltage output by the second data line; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage sub-pixels and the low-voltage sub-pixels are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixels receive a negative polarity driving voltage output by a first data line, the low-voltage sub-pixels receive a positive polarity driving voltage output by a second data line, the same polarity driving adopts the same data line, the frequent driving of the same data line polarity can be avoided, the power consumption of a driving integrated circuit can be reduced, the temperature rise risk of the driving integrated circuit is reduced, the driving data of the positive polarity driving voltage and the negative polarity driving voltage are respectively adopted for alternative driving, the visual angle color cast is solved, and the difference between the high-voltage sub-pixels and the low-voltage sub-pixels can not be obviously distinguished by, and the defect of reduced resolution is avoided, and the user experience is improved.
Based on the above hardware structure, an embodiment of a driving method of a display panel according to the present invention is provided.
Referring to fig. 3, fig. 3 is a flowchart illustrating a driving method of a display panel according to a first embodiment of the present invention.
In a first embodiment, the driving method of the display panel includes the steps of:
step S10, when the current timing is a first preset timing, performing negative polarity driving on the high-voltage sub-pixel and the low-voltage sub-pixel by using a negative polarity common electrode voltage of a preset voltage, where the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixel receives a positive polarity driving voltage output by the first data line, and the low-voltage sub-pixel receives a negative polarity driving voltage output by the second data line.
It should be noted that, in the pixel design of the liquid crystal display panel in this embodiment, a red sub-pixel, a green sub-pixel, and a blue sub-pixel are a pixel unit, that is, the first sub-pixel, the second sub-pixel, and the third sub-pixel correspond to a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolar sub-pixels, and each pixel unit adopts a high-low voltage alternating driving arrangement manner.
It is understood that, referring to fig. 4, fig. 4 is a schematic diagram of a pixel driving arrangement of a driving method of a display panel according to the present invention; when the current time sequence is a first preset time sequence, carrying out negative polarity driving on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a negative polarity common electrode voltage of a preset voltage, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixels receive a positive polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive a negative polarity driving voltage output by the second data lines; the common electrode voltage Vcom1 corresponding to the high-voltage sub-pixels VGd _1, VGd _3, VGd _5 and the low-voltage sub-pixels VGd _2, VGd _4, VGd _6 is a negative polarity driving voltage (the negative polarity of the common electrode voltage, i.e., the common electrode voltage Vcom1, is smaller than the original common electrode voltage Vcom, i.e., Vcom1< Vcom). Wherein the high voltage sub-pixels VGd _1, VGd _3, VGd _5 are positive polarity drive voltages (> Vcom) and the low voltage sub-pixels VGd _2, VGd _4, VGd _6 are negative polarity drive voltages (< Vcom).
It should be understood that the positive polarity driving voltages (> Vcom) VGd _1, VGd _3, VGd _5 of Gline are data line driving with the first data line Vd1 being common, and the negative polarity driving voltages (< Vcom) VGd _2, VGd _4, VGd _6 are data line driving with the second data line Vd2 being common, so as to ensure the same polarity driving of the same data line; the same polarity driving the same data line can reduce the frequent driving of the polarity.
Step S20, when receiving the data driving signal input by the data driving circuit and performing timing inversion, periodically inverting the preset voltage.
It should be understood that the data driving signals input by the data driving circuit are time-reversed to be time-reversed by voltages corresponding to the data driving signals, which may be generally denoted as Vgd, Vrd, Vbd, d being constants 1, 2, 3, etc., Vgd, Vrd, Vbd corresponding to the initial driving voltages of the green, red, and green sub-pixels, respectively, but may be other types of initial driving voltages, which is not limited in this embodiment.
When the preset voltage is driven with negative polarity, the data driving circuit performs negative polarity driving on the data driving signal input by the data driving circuit, when the data driving signal performs timing inversion, the preset voltage is set as a driving voltage with opposite polarity to perform periodic inversion, and when the inverted preset voltage is driven with positive polarity, the inverted data driving signal performs positive polarity driving; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, positive polarity driving is carried out on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting positive polarity common electrode voltage of preset voltage, wherein the preset voltage is larger than the original common electrode voltage, the high-voltage sub-pixels receive negative polarity driving voltage output by the first data lines, and the low-voltage sub-pixels receive positive polarity driving voltage output by the second data lines, so that adjacent sub-pixels are ensured to be alternated between the high voltage and the low voltage, and the purpose of reducing color cast is achieved.
It should be understood that, referring to fig. 4 and 5, fig. 5 is a schematic diagram of a first preset timing sequence of pixel driving in the driving method of the display panel according to the present invention; when the current time sequence is a first preset time sequence, the high-voltage unit sub-pixels are driven by positive polarity, the low-voltage unit pixels are driven by negative polarity, and the common electrode voltage negative polarity, namely the common electrode voltage Vcom1, is smaller than the original common electrode voltage Vcom, namely Vcom1< Vcom; after receiving the data driving signal inputted by the data driving circuit and performing the timing inversion, that is, when the current timing is the second predetermined timing, the high voltage unit pixel is driven with the negative polarity, the low voltage unit pixel is driven with the positive polarity, and is matched with the common electrode voltage positive polarity voltage driving, the common electrode voltage positive polarity, that is, the common electrode voltage Vcom1 is larger than the original common electrode voltage Vcom, that is, Vcom1> Vcom.
Step S30, when the current timing sequence is switched from the first preset timing sequence to the second preset timing sequence, performing positive polarity driving on the high-voltage sub-pixel and the low-voltage sub-pixel by using a positive polarity common electrode voltage of a preset voltage, where the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixel receives a negative polarity driving voltage output by the first data line, and the low-voltage sub-pixel receives a positive polarity driving voltage output by the second data line.
It can be understood that, when the current timing is switched from the first preset timing to the second preset timing, the high-voltage sub-pixel and the low-voltage sub-pixel are driven in positive polarity by a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixel receives a negative polarity driving voltage output by the second data line, and the low-voltage sub-pixel receives a positive polarity driving voltage output by the first data line; that is, the common electrode voltage Vcom1 is a positive polarity driving voltage, and the common electrode voltage positive polarity, that is, the common electrode voltage Vcom1 is larger than the original common electrode voltage Vcom, that is, Vcom1> Vcom); in addition, the high-voltage sub-pixels VGd _1, VGd _3, and VGd _5 are negative polarity driving voltages (< Vcom), and the low-voltage sub-pixels VGd _2, VGd _4, and VGd _6 are positive polarity driving voltages (> Vcom).
Further, before the step S20, the method for driving a display panel further includes the steps of:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line;
and when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is low voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is high voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the negative polarity driving voltage output by the second data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the positive polarity driving voltage output by the first data line.
It should be noted that, the polarities of the second sub-pixel, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit are different, and the polarities of the first sub-pixel and the third sub-pixel in the same pixel unit are the same, that is, when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a high voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a low voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the positive driving voltage output by the first data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the negative driving voltage output by the second data line, and the second sub-pixel in the second adjacent sub-pixel unit is driven by the negative driving voltage output by the second data line, driving a first sub-pixel and a third sub-pixel in the second adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line; when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a low voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a high voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the negative polarity driving voltage output by the second data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the positive polarity driving voltage output by the first data line, the second sub-pixel in the second adjacent sub-pixel unit is driven by the positive polarity driving voltage output by the first data line, and the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit are driven by the negative polarity driving voltage output by the second data line.
It is to be understood that reference is made to fig. 4; when the current timing is the first predetermined timing, the high voltage sub-pixels VGd _1, VGd _3, VGd _5 in the G row of sub-pixels (R and B rows of sub-pixels are the same) and the common electrode voltage Vcom1 corresponding to the low voltage sub-pixels VGd _2, VGd _4, VGd _6 in the figure are negative polarity driving voltages (the negative polarity of the common electrode voltage, i.e., the common electrode voltage Vcom1, is smaller than the original common electrode voltage Vcom, i.e., the common electrode 1< Vcom). Wherein the high voltage sub-pixels VGd _1, VGd _3, VGd _5 are positive polarity drive voltages (> Vcom), and the low voltage sub-pixels VGd _2, VGd _4, VGd _6 are negative polarity drive voltages (< Vcom); after the current timing is switched from the first preset timing to the second preset timing, the common electrode voltage Vcom1 is a positive polarity driving voltage, and the common electrode voltage positive polarity, i.e., the common electrode voltage Vcom1, is larger than the original common electrode voltage Vcom, i.e., Vcom1> Vcom); in addition, the high-voltage sub-pixels VGd _1, VGd _3, and VGd _5 are negative polarity driving voltages (< Vcom), and the low-voltage sub-pixels VGd _2, VGd _4, and VGd _6 are positive polarity driving voltages (> Vcom).
Correspondingly, after the step S20, the method for driving a display panel further includes the steps of:
and when the preset voltage meets a preset condition, driving the equivalent driving voltage of the high-voltage sub-pixel and the low-voltage sub-pixel in the selected sub-pixels by adopting a preset data driving signal, wherein the preset data driving signal is an average signal of the driving signals of two adjacent sub-pixels in the original same column.
It is understood that the preset condition is a state when the preset voltage is driven, for example, when the preset voltage is a positive polarity driving voltage, the preset voltage may also be a negative polarity driving voltage, and when the data driving signal input by the data driving circuit is received to perform timing inversion, the polarities of the preset voltages are opposite.
It should be understood that, the equivalent voltages of VGd _1 and VGd _2 are respectively driven by the positive polarity driving voltage Vd1 and the negative polarity driving voltage Vd2 and Vg1 ', the positive polarity driving voltage Vg1 and the negative polarity driving voltage Vg1 ' may be preferably the average signal of the original frame pixel signals Gd1 and Gd2 signals (0 to 255 signals in the case of 8-bit driving signals), that is, G1 is (Gd1+ Gd2)/2, and the positive polarity driving voltage Vg1 and the negative polarity driving voltage Vg1 ' corresponding to the G1 signals. VGd _3 and VGd _4 are driven by positive driving voltage Vgd (Vg 2) and negative driving voltage Vgd (Vg2 '), respectively, so the average signal of original frame pixel signals Gd3 and Gd4 (0-255 signals in the case of 8-bit driving signals), i.e., G2 (Gd3+ Gd 4)/2), and the positive driving voltage Vg2 and the negative driving voltage Vg 2' corresponding to G2 signals can be preferred.
Further, after the preset voltage is periodically inverted when the data driving signal input by the data driving circuit is received for timing inversion, the driving method of the display panel further includes:
two adjacent sub-pixels in the same row are respectively selected, and the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels is driven by the equivalent driving voltage which is larger than that of the low-voltage sub-pixel in the selected sub-pixels.
It can be understood that, referring to fig. 5, the driving signal Vd1 sequentially includes a G sub-pixel positive polarity driving signal Vd1 ═ Vg1, Vg2, Vg3 …, and an R sub-pixel positive polarity driving signal Vd1 ═ Vr1, Vr2, Vr3 …, and the driving signal Vd2 sequentially includes a B sub-pixel negative polarity driving signal Vd2 ═ Vb1 ', Vb 2', Vb3 '…, and a G sub-pixel negative polarity driving signal Vd2 ═ Vg 1', Vg2 ', Vg 3' …. When the Frame1 Frame timing is performed, the high-voltage Gline sub-pixel equivalent driving voltage VGd _1 is a voltage difference between the positive polarity driving voltage Vd1 ═ Vg1(Vg1> Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is, VGd _1 ═ Vg1-Vcom1|, and the next adjacent low-voltage sub-pixel VGd _2 is a voltage difference between the negative polarity driving voltage Vd2 ═ Vg1 ' (Vg1 ' < Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is, VGd _2 ═ Vg1 ' -Vcom1|, so VGd _1> VGd _ 2. Similarly, the high-voltage sub-pixel VGd _3 and the low-voltage sub-pixel VGd _4 are sequentially driven, the high-voltage sub-pixel equivalent driving voltage VGd _3 is a voltage difference between the positive polarity driving voltage Vd1 ═ Vg2(Vg2> Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is, VGd _3 ═ Vg2-Vcom1|, and the next adjacent low-voltage sub-pixel VGd _4 is a voltage difference between the negative polarity driving voltage 2 ═ Vg2 ' (Vg2 ' < Vcom) and the negative polarity common electrode Vcom1, that is, VGd _4 ═ Vg2 ' -Vcom1|, so VGd _3> VGd _ 4.
In this embodiment, when the current timing sequence is a first preset timing sequence, a negative polarity common electrode voltage of a preset voltage is used for performing negative polarity driving on the high-voltage sub-pixel and the low-voltage sub-pixel, where the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixel receives a positive polarity driving voltage output by the first data line, and the low-voltage sub-pixel receives a negative polarity driving voltage output by the second data line; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage sub-pixels and the low-voltage sub-pixels are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixels receive a negative polarity driving voltage output by a first data line, the low-voltage sub-pixels receive a positive polarity driving voltage output by a second data line, the same polarity driving adopts the same data line, the frequent driving of the same data line polarity can be avoided, the power consumption of a driving integrated circuit can be reduced, the temperature rise risk of the driving integrated circuit is reduced, the driving data of the positive polarity driving voltage and the negative polarity driving voltage are respectively adopted for alternative driving, the visual angle color cast is solved, and the difference between the high-voltage sub-pixels and the low-voltage sub-pixels can not be obviously distinguished by, and the defect of reduced resolution is avoided, and the user experience is improved.
In addition, the embodiment of the invention also provides a driving device of the display panel. As shown in fig. 6, the display panel includes a display array including pixel units arranged in an array, and the pixel units are alternately arranged by first pixel units and second pixel units; the driving device of the display panel includes:
the common electrode driving module 110 is configured to use a pixel unit that has scanned at least three rows as a driving cycle, and drive the common electrodes of the sub-pixels in the pixel unit by using a preset voltage in the current driving cycle;
the common electrode driving module 110 is further configured to drive the high voltage sub-pixels in the pixel units with positive polarity and drive the low voltage sub-pixels in the pixel units with negative polarity when the preset voltage is a negative polarity driving voltage, where the preset voltage is smaller than the reference voltage;
the inversion module 120 is configured to periodically invert the preset voltage when receiving a data driving signal input by the data driving circuit for inversion;
the common electrode driving module 110 is further configured to drive the high voltage sub-pixels in the pixel units with negative polarity and drive the low voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, where the inverted preset voltage is greater than the reference voltage.
As shown in fig. 7, the driving apparatus of the display panel further includes a display array 100 and a driving module 200, where the driving module 200 may include a scanning unit 210 and a driving unit 220, the scanning unit 210 is configured to output a scanning signal, and generally scans the pixel units row by row, and the driving unit 220 outputs a driving signal, so that the pixel units receive driving data when being scanned, and perform display.
The driving module 200 may refer to the above-described embodiment, and through this process, the common electrodes of the sub-pixels in the pixel unit may be driven by the same driving voltage, and the high and low voltage sub-pixels may be driven by different driving methods, thereby solving the color shift of the viewing angle, and performing corresponding driving through the common electrodes, thereby reducing the work of the driving chip, reducing the power consumption and the temperature increase risk of the driving chip, and not requiring doubling the metal wiring and the driving device to drive the sub-pixels, thereby achieving the purpose of saving the cost.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a device, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The driving method of the display panel is characterized in that the display panel comprises a display array, the display array comprises pixel units which are arranged in an array mode, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driving method includes:
when the current time sequence is a first preset time sequence, performing negative polarity driving on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a negative polarity common electrode voltage of a preset voltage, wherein the preset voltage is smaller than the original common electrode voltage, the high-voltage sub-pixels receive a positive polarity driving voltage output by a first data line, the low-voltage sub-pixels receive a negative polarity driving voltage output by a second data line, and the same polarity driving adopts the same data line;
when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, periodically inverting the preset voltage;
when the current time sequence is switched from the first preset time sequence to a second preset time sequence, positive polarity driving is carried out on the high-voltage sub-pixels and the low-voltage sub-pixels by adopting a positive polarity common electrode voltage of a preset voltage, wherein the preset voltage is greater than the original common electrode voltage, the high-voltage sub-pixels receive a negative polarity driving voltage output by the first data line, the low-voltage sub-pixels receive a positive polarity driving voltage output by the second data line, and the same data line is adopted for the same polarity driving;
when receiving a data driving signal input by the data driving circuit and performing time sequence inversion, the method for periodically inverting the preset voltage comprises the following steps:
when the preset voltage is driven with negative polarity, performing negative polarity driving on a data driving signal input by a receiving data driving circuit, when the data driving signal is subjected to time sequence inversion, setting the preset voltage as a driving voltage with opposite polarity for periodic inversion, and when the inverted preset voltage is driven with positive polarity, performing positive polarity driving on the inverted data driving signal;
when the preset voltage is a negative polarity drive, the display panel driving method performs a negative polarity drive on a data driving signal input by the data driving circuit, when the data driving signal is subjected to a timing inversion, the preset voltage is set as a driving voltage with an opposite polarity to perform a periodic inversion, and when the inverted preset voltage is a positive polarity drive, before performing a positive polarity drive on the inverted data driving signal, the display panel driving method further includes:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, driving the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, and driving the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a low voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a high voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the negative polarity driving voltage output by the second data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the positive polarity driving voltage output by the first data line, the second sub-pixel in the second adjacent sub-pixel unit is driven by the positive polarity driving voltage output by the first data line, and the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit are driven by the negative polarity driving voltage output by the second data line.
2. The method for driving a display panel according to claim 1, wherein before periodically inverting the preset voltage while receiving the data driving signal inputted from the data driving circuit for timing inversion, the method for driving a display panel further comprises:
selecting any two adjacent pixel units in the column direction, and acquiring the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line;
and when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is low voltage and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is high voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the negative polarity driving voltage output by the second data line, and driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the positive polarity driving voltage output by the first data line.
3. The method for driving the display panel according to claim 2, wherein after selecting any two adjacent pixel units in the column direction and obtaining the voltage state of the second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit, the method for driving the display panel further comprises:
and when the preset voltage meets a preset condition, driving the equivalent driving voltage of the high-voltage sub-pixel and the low-voltage sub-pixel in the selected sub-pixels by adopting a preset data driving signal, wherein the preset data driving signal is an average signal of the driving signals of two adjacent sub-pixels in the original same column.
4. The method for driving a display panel according to any one of claims 1 to 3, wherein after the periodically inverting the preset voltage when receiving the data driving signal inputted from the data driving circuit for timing inversion, the method for driving a display panel further comprises:
two adjacent sub-pixels in the same row are respectively selected, and the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels is driven by the equivalent driving voltage which is larger than that of the low-voltage sub-pixel in the selected sub-pixels.
5. The method according to claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are a red sub-pixel, a green sub-pixel, and a blue sub-pixel in this order, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolar sub-pixels.
6. A driving apparatus of a display panel, the display panel comprising: the display device comprises a display array, a first light source and a second light source, wherein the display array comprises pixel units which are arranged in an array mode and are alternately arranged by a first pixel unit and a second pixel unit; the driving device of the display panel includes: the display device comprises a display array, a pixel unit and a control unit, wherein the display array comprises pixel units which are arranged in an array mode, the pixel units comprise first sub-pixels, second sub-pixels and third sub-pixels in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence;
the driving device of the display panel includes:
the common electrode driving module is set to take the pixel units of at least three rows after scanning as a driving period, and the common electrodes of the sub-pixels in the pixel units are driven by adopting preset voltage in the current driving period;
the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with positive polarity and drive the low-voltage sub-pixels in the pixel units with negative polarity when the preset voltage is a negative polarity driving voltage, and the preset voltage is smaller than a reference voltage;
the high voltage sub-pixel receives the positive driving voltage output by the first data line, the low voltage sub-pixel receives the negative driving voltage output by the second data line, and the same data line is adopted for the same polarity driving;
the inversion module is used for periodically inverting the preset voltage when receiving the inversion of a data driving signal input by the data driving circuit;
the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with negative polarity and drive the low-voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, and the inverted preset voltage is greater than the reference voltage;
the high-voltage sub-pixel receives a negative-polarity driving voltage output by the first data line, the low-voltage sub-pixel receives a positive-polarity driving voltage output by the second data line, and the same data line is adopted for the same polarity driving;
the inversion module is further configured to perform negative polarity driving on a data driving signal input by a data driving circuit when the preset voltage is negative polarity driving, set the preset voltage as a driving voltage with opposite polarity to perform periodic inversion when the data driving signal is subjected to timing inversion, and perform positive polarity driving on the inverted data driving signal when the inverted preset voltage is positive polarity driving;
the inversion module is further used for selecting any two adjacent pixel units in the column direction to obtain the voltage state of a second sub-pixel in the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is high voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line, driving the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, driving the second sub-pixel in the second adjacent sub-pixel unit by adopting the negative driving voltage output by the second data line, and driving the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit by adopting the positive driving voltage output by the first data line;
when the voltage state of the second sub-pixel in the first adjacent sub-pixel unit is a low voltage, and the voltage state of the second sub-pixel in the second adjacent sub-pixel unit is a high voltage, the second sub-pixel in the first adjacent sub-pixel unit is driven by the negative polarity driving voltage output by the second data line, the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit are driven by the positive polarity driving voltage output by the first data line, the second sub-pixel in the second adjacent sub-pixel unit is driven by the positive polarity driving voltage output by the first data line, and the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit are driven by the negative polarity driving voltage output by the second data line.
7. A display device, characterized in that the display device comprises: the display panel comprises a display array, the display array comprises pixel units which are arranged in an array, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driver of the display panel is configured to implement the steps of the driving method of the display panel according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095270.8A CN109637492B (en) | 2019-01-30 | 2019-01-30 | Display panel driving method and device and display equipment |
| PCT/CN2019/129296 WO2020155991A1 (en) | 2019-01-30 | 2019-12-27 | Driving method and apparatus for display panel, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095270.8A CN109637492B (en) | 2019-01-30 | 2019-01-30 | Display panel driving method and device and display equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109637492A CN109637492A (en) | 2019-04-16 |
| CN109637492B true CN109637492B (en) | 2021-01-15 |
Family
ID=66064436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910095270.8A Active CN109637492B (en) | 2019-01-30 | 2019-01-30 | Display panel driving method and device and display equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109637492B (en) |
| WO (1) | WO2020155991A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637492B (en) * | 2019-01-30 | 2021-01-15 | 惠科股份有限公司 | Display panel driving method and device and display equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5191639B2 (en) * | 2006-09-15 | 2013-05-08 | 株式会社ジャパンディスプレイイースト | Liquid crystal display |
| CN104240661B (en) * | 2014-09-05 | 2017-02-08 | 京东方科技集团股份有限公司 | Polarity inversion driving method, polarity inversion driving device and display device |
| CN105096899B (en) * | 2015-09-22 | 2018-09-25 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and liquid crystal display device |
| CN107741660B (en) * | 2017-11-30 | 2020-07-31 | 深圳市华星光电半导体显示技术有限公司 | Pixel driving framework, display panel and display device |
| CN108648708A (en) * | 2018-05-08 | 2018-10-12 | 深圳市华星光电技术有限公司 | Driving method, display panel and the display device of display panel |
| CN109036319B (en) * | 2018-09-13 | 2020-09-11 | 重庆惠科金渝光电科技有限公司 | Driving method, device and equipment of display panel and storage medium |
| CN108831405B (en) * | 2018-09-13 | 2020-09-11 | 重庆惠科金渝光电科技有限公司 | Driving method, device and equipment of display panel and storage medium |
| CN109637492B (en) * | 2019-01-30 | 2021-01-15 | 惠科股份有限公司 | Display panel driving method and device and display equipment |
-
2019
- 2019-01-30 CN CN201910095270.8A patent/CN109637492B/en active Active
- 2019-12-27 WO PCT/CN2019/129296 patent/WO2020155991A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020155991A1 (en) | 2020-08-06 |
| CN109637492A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108831405B (en) | Driving method, device and equipment of display panel and storage medium | |
| CN109036319B (en) | Driving method, device and equipment of display panel and storage medium | |
| US8525769B2 (en) | Liquid crystal display apparatus including color filters of RGBW mosaic arrangement and method of driving the same | |
| US9898978B2 (en) | Liquid crystal panels and the driving circuits thereof | |
| US9934736B2 (en) | Liquid crystal display and method for driving the same | |
| KR101127593B1 (en) | Liquid crystal display device | |
| US9373298B2 (en) | Display device and driving method thereof | |
| CN109637493B (en) | Driving method and device of display panel | |
| US8054267B2 (en) | Liquid crystal display with sub-pixel zones and method for driving same | |
| CN111883079B (en) | Driving method and circuit of display panel and display device | |
| CN109215598B (en) | Display panel and driving method thereof | |
| JP2008033312A (en) | System for displaying image and driving method thereof | |
| CN109671410B (en) | Driving method, device and equipment of display panel and storage medium | |
| JP2008233454A (en) | Electrooptical device, driving method, driving circuit, and electronic apparatus | |
| US11410626B1 (en) | Method for driving display panel, display panel and display device | |
| CN109785812B (en) | Display panel driving method, display device, and storage medium | |
| CN109637492B (en) | Display panel driving method and device and display equipment | |
| CN109658893B (en) | Driving method and driving device of display panel and display equipment | |
| CN104575432A (en) | Display panel driving method, display panel and display device | |
| CN109616075B (en) | Driving method, device and equipment of display panel and storage medium | |
| KR100303449B1 (en) | Liquid crystal display apparatus for reducing a flickering and driving method of performing thereof | |
| US20040252098A1 (en) | Liquid crystal display panel | |
| US10796651B2 (en) | Driving method and device of display panel, and display device | |
| US11551628B2 (en) | Driving method for display panel, driving device of display panel, and display apparatus | |
| KR101686093B1 (en) | Viewing Angle Image Control Liquid Crystal Display Device and Driving Method for the Same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |