CN113031343A

CN113031343A - Display screen, display screen driving method and device, electronic equipment and storage medium

Info

Publication number: CN113031343A
Application number: CN202110297367.4A
Authority: CN
Inventors: 文亮; 李文学
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-06-25

Abstract

The application discloses a display screen, a display screen driving method and device, electronic equipment and a storage medium, and belongs to the technical field of pixel driving. The method comprises the following steps: and determining a target sub-pixel unit to be charged on the TFT substrate, charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit. Because the color filter film layer with lower light transmittance in the CF substrate is removed, the backlight module which can emit light rays with various color types is adopted to replace the backlight module which is used for emitting white light rays in the prior art, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, the light transmittance of the whole liquid crystal box is improved, the utilization rate of the backlight module is improved, and the power consumption of the backlight module is reduced.

Description

Display screen, display screen driving method and device, electronic equipment and storage medium

Technical Field

The application belongs to the technical field of pixel driving, and particularly relates to a display screen, a display screen driving method and device, electronic equipment and a storage medium.

Background

A Liquid Crystal Display (LCD) mainly includes a Liquid Crystal Display panel, a gate driving circuit, and a data driving circuit; the liquid crystal display panel includes a Thin Film Transistor (TFT) array substrate, a Color Filter (CF) substrate, and liquid crystal disposed between the two substrates. Since the lcd panel does not emit light, the backlight module is required to provide light to the lcd panel. The grid driving circuit is connected with the grid of the TFT switch element on the TFT array substrate so as to control the opening and closing of the TFT switch element; the data driving circuit is connected with the source electrode of the TFT switching element on the TFT array substrate to charge the pixel electrode and generate an electric field, so that the liquid crystal is deflected under the action of the electric field.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: the liquid crystal deflects under the action of an electric field, so that the transmission amount of white light provided by the backlight module is controlled, and the transmitted white light can be filtered into three primary colors of red, green and blue through the color filter films of the red, green and blue on the CF substrate to realize color display. The utilization rate of white backlight provided by the backlight module is low and the power consumption of the backlight module is high due to the low light transmittance of the color filter film.

Disclosure of Invention

An object of the embodiments of the present application is to provide a display screen, a display screen driving method, a display screen driving device, an electronic device, and a storage medium, which can solve the problems in the prior art that the utilization rate of white backlight provided by a backlight module is low and the power consumption of the backlight module is high due to low light transmittance of a color filter film.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a display screen, where the display screen includes: the backlight module comprises a CF substrate of a color filter film, a TFT substrate of a thin film transistor, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

the CF substrate, the TFT substrate and the backlight module are sequentially stacked;

the CF substrate comprises a black matrix layer, a protective layer and a supporting layer which are sequentially stacked;

the TFT substrate comprises sub-pixel units of multiple color types distributed in an array;

the backlight module is used for emitting light rays with various color types, and the color types of the light rays emitted by the backlight module correspond to the color types of the started sub-pixel units.

In a second aspect, an embodiment of the present application provides a display screen driving method, which is applied to an electronic device including the display screen described above, and the method includes:

determining a target sub-pixel unit to be charged on the TFT substrate;

and charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

In a third aspect, an embodiment of the present application provides a display screen driving apparatus, which is disposed in an electronic device including the display screen, and includes:

the first determination module is used for determining a target sub-pixel unit to be charged on the TFT substrate;

and the charging module is used for charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

In a fourth aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, implement the steps of the method according to the first aspect.

In a fifth aspect, the present embodiments provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.

In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.

In the embodiment of the application, the target sub-pixel unit to be charged on the TFT substrate is determined, the target sub-pixel unit is charged, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit. Because the color filter film layer with lower light transmittance in the CF substrate is removed, the backlight module which can emit light rays with various color types is adopted to replace the backlight module which is used for emitting white light rays in the prior art, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, the light transmittance of the whole liquid crystal box is improved, the utilization rate of the backlight module is improved, and the power consumption of the backlight module is reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of a pixel unit of a TFT substrate provided in an embodiment of the present application;

fig. 2 is a top view of a pixel unit of a TFT substrate provided in an embodiment of the present application;

fig. 3 is a schematic view of a TFT substrate according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a CF substrate according to an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of a CF substrate according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a liquid crystal cell according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of an assembled backlight module and an assembled liquid crystal cell according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of a display screen provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of a color gamut of a display screen provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a prior art pixel driving architecture according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a prior art pixel driving circuit according to an embodiment of the present application;

FIG. 12 is a flowchart illustrating steps of a method for driving a display panel according to an embodiment of the present disclosure;

fig. 13 is a schematic diagram of an architecture of a display panel driver according to an embodiment of the present application;

FIG. 14 is a schematic diagram of charging red sub-pixel units of all pixel rows according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of charging green sub-pixel units of all pixel rows according to an embodiment of the present disclosure;

FIG. 16 is a schematic diagram of charging the blue sub-pixel units of all pixel rows according to an embodiment of the present disclosure;

fig. 17 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application;

fig. 18 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application;

fig. 19 is a schematic hardware configuration diagram of another electronic device for implementing the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The pixel driving method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

To more clearly describe the embodiment of the present invention, a display screen of an electronic device is described. The existing LCD screen manufacturing process mainly includes: manufacturing a TFT substrate, manufacturing a CF substrate, manufacturing a liquid crystal box and assembling a backlight module.

Fig. 1 is a schematic cross-sectional view of a pixel unit of a TFT substrate provided in an embodiment of the present application. Fig. 2 is a top view of a pixel unit of a TFT substrate according to an embodiment of the present disclosure.

Referring to fig. 1 and 2, the manufacturing process of the TFT substrate mainly manufactures each functional layer in the following order of layers:

the pixel structure comprises a glass substrate 101, a buffer layer 102, a shading layer 103, a polycrystalline silicon layer 104, a grid insulating layer 105, a grid 106, an interlayer insulating layer 107, a source/drain metal layer 108, a planarization layer 109, a touch wiring layer 110, a PV1 layer 111, an ITO1 common electrode 112, a PV2 layer 113 and an ITO2 pixel electrode 114. Among them, the ITO thin film is an n-type semiconductor material having high conductivity, high visible light transmittance, high mechanical hardness, and good chemical stability. It is the most commonly used thin film material for transparent electrodes of LCDs, solar cells, and other electronic instruments.

The buffer layer 102 is made of SiO2, and is fabricated on the glass substrate to prevent impurities on the glass substrate from diffusing into the thin film transistor. The light shielding layer 103 is made of molybdenum, the chemical symbol of molybdenum is Mo, and the light shielding layer is arranged below the channel of the thin film transistor to block backlight from irradiating the channel, so that the photoproduction leakage current of the transistor is avoided. The polysilicon layer 104 is mainly made of polysilicon with polycrystalline grains, and serves as a transistor semiconductor active layer. The gate insulating layer 105 is mainly made of silicon oxide and serves as a gate dielectric of the thin film transistor. The gate electrode 106 is made of Mo as a gate electrode of the thin film transistor. The interlayer insulating layer 107 is mainly made of silicon oxide and silicon nitride, and serves as an insulating dielectric layer between the metal layers. The source/drain metal layer 108 is mainly made of titanium-aluminum-titanium multilayer metal and serves as a conductive connection layer for the trace and the source and drain electrodes of the thin film transistor. The planarization layer 109 is mainly made of transparent resin and serves as a planarization layer and an interlayer dielectric. The touch wire layer 110 is made of a molybdenum-aluminum-molybdenum multilayer metal and is used as a wire for connecting the touch sensor and the IC. The PV1 layer 111 is a silicon nitride material that acts as an interlayer dielectric and passivation layer. The ITO1 common electrode 112 is made of an indium tin oxide transparent film and serves as a common electrode. The PV2 layer 113 is a silicon nitride material that acts as an interlayer dielectric and passivation layer. The ITO2 pixel electrode 114 is made of an ITO transparent film as a pixel electrode.

Fig. 3 is a schematic view of a TFT substrate shown in fig. 3, and fig. 3 is a schematic view of a TFT substrate provided in an embodiment of the present application. An array is formed of a plurality of thin film transistors including a gate driving circuit, a glass peripheral region, and the like, and one thin film transistor is indicated by a dashed line block 301 in fig. 3.

The manufacturing flow of the CF substrate is shown in fig. 4:

fig. 4 is a schematic structural diagram of a CF substrate according to an embodiment of the present disclosure. The CF substrate mainly includes the following layers, and the manufacturing flow thereof is to manufacture each functional layer in the order of the following layers. The method mainly comprises the following steps:

a glass substrate 401, a Black Matrix (BM) layer 402, R pixels 403, G pixels 404, B pixels 405, an Overcoat (OC) layer 406, a gap control material (PS) layer including main support posts 407 and auxiliary support posts 408. The R pixel 403, the G pixel 404, and the B pixel 405 belong to a color filter film, the color filter film needs to filter light of a white backlight, and the color filter film of the screen filters light of three colors, red, green, and blue, of the white backlight.

The black matrix layer 402 is made of carbon-doped resin and is used for shielding the non-light-emitting area. The R pixel 403 is a red pixel region made of red dye-doped resin and transmits red light. The G pixel 404, i.e., the green pixel region, is made of a green dye-doped resin and transmits green light. The B pixel 405 is a blue pixel region, and is made of blue dye-doped resin, and transmits blue light. The OC layer 406 is made of transparent resin and has a planarization effect. The PS layer is made of resin and plays a role in supporting, and the gap control material in the two substrates plays a role in controlling the thickness and uniformity between the substrates. In fig. 4, an R pixel, a G pixel, and a B pixel are sequentially arranged on the right side of the B pixel 405, where a pixel located on the right side of the B pixel 405 and adjacent to the B pixel 405 is an R pixel. By analogy, the R pixel, the G pixel, and the B pixel are sequentially arranged on the right side of the second B pixel from left to right, four groups of the R pixel, the G pixel, and the B pixel are shown in fig. 4, and a black matrix is arranged between every two pixels.

Fig. 5 is a schematic cross-sectional view of a CF substrate shown in fig. 5, according to an embodiment of the present disclosure. The CF substrate includes a black matrix layer 501, main support columns 502, auxiliary support columns 503, R pixels 504, G pixels 505, and B pixels 506.

The process of manufacturing a liquid crystal cell is shown in fig. 6:

fig. 6 is a schematic view of a liquid crystal cell according to an embodiment of the present application. The CF substrate 601 and the TFT substrate 602 are bonded together by sealant 603, and liquid crystal material is filled in the middle, so as to form a liquid crystal cell of the LCD.

The assembly of the backlight module is shown in fig. 7, and fig. 7 is a schematic diagram of an assembled backlight module and an assembled liquid crystal cell provided in the embodiment of the present application, the backlight module 701 is attached to the back of a liquid crystal, the backlight module 701 is lighted up to provide white light, the liquid crystal is driven by an electric field to rotate, and the transmission amount of the backlight is controlled, so that the display content is controlled.

In the prior art, the color filter film is required to filter the white light backlight, and the color filter film of the screen is required to filter the red, green and blue light rays of the white light backlight. The color filter film layer is the material layer with the lowest transmittance in the LCD screen, so that the light transmittance of the whole liquid crystal box is low, the utilization rate of the backlight module is low, and the backlight power consumption is high.

In order to improve the transmissivity of light, the application provides a display screen, and the display screen comprises: the backlight module comprises a CF substrate, a TFT substrate, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

The CF substrate provided by the embodiment of the present application is described herein, and the CF substrate provided by the embodiment of the present application includes a black matrix layer, a protective layer, and a support layer. That is, the CF substrate provided in the present application removes the color filter film layer as shown in fig. 5 in the related art, and retains the BM layer, the OC layer, and the PS layer.

The CF substrate and the TFT substrate provided by the embodiment of the application are pasted together, liquid crystal is filled in the middle of the CF substrate and the TFT substrate to form a liquid crystal box of the liquid crystal display, then polaroids are pasted on the front side and the back side of the liquid crystal box, and the back Light module is pasted on the back side and comprises an RGB Light Emitting Diode (LED) lamp. The backlight module is matched with a driving method of the TFT, so that the pixel unit on the TFT substrate displays color content.

The display screen that this application embodiment provided, the lower colored filtering film layer of light transmissivity in the CF base plate has been got rid of, and adopt the backlight unit that can send the light of multiple colour type to replace the backlight unit that is used for sending white light among the prior art, the colour type of the light that backlight unit that this application embodiment provided sent corresponds with the colour type of the sub-pixel unit that starts, thereby the colour type of the light that makes the sub-pixel unit that starts can see through backlight unit and send, thereby realized need not to realize showing colored picture through colored filtering film layer. The color filter film layer with lower light transmittance in the CF substrate is removed, so that the light transmittance of the whole liquid crystal box is improved, the utilization rate of the backlight module is improved, and the power consumption of the backlight module is reduced.

Optionally, the color types of the sub-pixel units include: as shown in fig. 8, fig. 8 is a schematic view of a display screen provided in an embodiment of the present application, where the backlight module includes: a red light source assembly 801, a green light source assembly 802, and a blue light source assembly 803;

when the red type sub-pixel unit is started, the red light source component 801 of the backlight module emits light; when the green type sub-pixel unit is started, the green light source component 802 of the backlight module emits light; with the blue type sub-pixel cell enabled, the blue light source component 803 of the backlight module emits light.

For example, when a red type sub-pixel unit is activated, the red light source module 801 is controlled to be in an on state, so that the red light source module emits light, and the green light source module 802 and the blue light source module 803 are controlled to be in an off state, so that the backlight module can emit red light when the red light source module emits light; when the green type sub-pixel unit is activated, the green light source component 802 is controlled to be in an on state, so that the green light source component 802 emits light, and the red light source component 801 and the blue light source component 803 are controlled to be in an off state, so that the backlight module can emit green light when the green light source component emits light; when the blue-type sub-pixel unit is activated, the blue light source module 803 is controlled to be in an on state, so that the blue light source module 803 emits light, and the red light source module 801 and the green light source module 802 are controlled to be in an off state, so that the backlight module can emit blue light when the blue light source module emits light. The red-type sub-pixel unit is started, namely the red-type sub-pixel unit is charged, so that the red-type sub-pixel unit can transmit red-type light emitted by the backlight module; the starting of the green type sub-pixel unit refers to charging the green type sub-pixel unit, so that the green type sub-pixel unit can transmit green type light emitted by the backlight module; the enabling of the sub-pixel unit of the blue type refers to charging the sub-pixel unit of the blue type, so that the sub-pixel unit of the blue type can transmit the light of the green blue type emitted by the backlight module.

It should be noted that, because the LED of the backlight module has a relatively wide color gamut, after the LED is filtered by the color filter layer of the CF substrate in the prior art, part of the light is lost, which results in a relatively small color gamut, and the color gamut that can be displayed is reduced. As shown in fig. 9, fig. 9 is a schematic diagram of a color gamut of a display screen provided in an embodiment of the present application. Based on the National Television Standards Committee (NTSC) 1931 color gamut standard, the LED light emitting color gamut of the backlight module is larger than the color gamut after being filtered by the color filter film layer. In fig. 9, an area 901 surrounded by dotted lines is an LED light-emitting color gamut of the backlight module, an area 902 surrounded by solid lines is a color gamut of the LED light-emitting color gamut of the backlight module filtered by the color filter layer, and the area 901 surrounded by dotted lines is larger than the area 902 surrounded by solid lines, that is, the color gamut filtered by the color filter layer is smaller than the LED light-emitting color gamut of the backlight module. In the display screen provided by the embodiment of the application, the color filter film layer of the CF substrate is removed, so that the displayable color gamut of the display screen can be improved.

The above description describes the composition of the display panel provided in the present application, and next describes the driving method of the display panel provided in the embodiment of the present application, that is, the driving method of the pixels on the TFT substrate. In order to more easily understand the driving method of the display panel provided in the present application, a pixel driving method of the prior art is described herein with reference to fig. 10 and 11.

As shown in fig. 10 and fig. 11, fig. 10 is a schematic diagram of a pixel driving architecture according to an embodiment of the present application, and fig. 11 is a schematic diagram of a pixel driving circuit according to an embodiment of the present application.

Fig. 10 shows a basic structure of a TFT substrate, and a driver Integrated Circuit (IC) is a chip bonded on the TFT glass substrate and used for driving a pixel unit on the TFT substrate, and the chip is referred to as a driver IC. The driving Circuit mainly includes a Flexible Printed Circuit (FPC), a wiring 1001 between the FPC and the driving IC, and the driving IC. The FPC is a flexible printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent performance. A driving voltage signal output from the driving IC is connected to a demultiplexing (Demux) switch circuit through a fanout (fanout) trace 1002, and is input to a data line 1003 by control of the Demux switch circuit. The Gate driver (GOA) circuit and the Gate (Gate) are controlled by a clock control signal output from the driver IC, and the GOA circuit in fig. 10 includes a left GOA circuit 1004 and a right GOA circuit 1005. In addition, the TFT substrate also comprises a pixel area, the pixel circuit principle of the pixel area is as shown in the figure, and the pixel area is composed of a TFT1006 and a Cst1007, and the Cst1007 represents a storage capacitor.

The pixel array on the TFT substrate is shown in fig. 11, where fig. 11 shows a pixel array with 4 rows and 2 columns, two pixel units are in each pixel row, each pixel unit includes a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit, and the red sub-pixel unit, the green sub-pixel unit and the blue sub-pixel unit of one pixel unit are sequentially arranged from left to right. For example, the first pixel cell of the first row includes a red word pixel cell 1101, a green sub-pixel cell 1102, and a blue sub-pixel cell 1103. The driving IC scans each pixel row line by line, and charges the pixel cells of a certain pixel row when the gate line of the pixel row is open, that is, when the pixel row is in a scanning state. In order to distinguish sub-pixel units of multiple color types, a red sub-pixel unit is filled in a rectangular frame, a green sub-pixel unit is filled in a rectangular frame, and a blue sub-pixel unit is not filled in a rectangular frame in the drawings provided in the embodiments of the present application, for example, refer to fig. 11.

The prior art pixel driving method is, for example: the first row of gate lines 1104 in fig. 11 is turned on, that is, the first row of gate lines 1104 is scanned to turn on the gates of the pixels in the pixel row in the first row, and the Demux switches corresponding to all the red sub-pixel units in the first row are turned on under the control of the Demux switch control signal, that is, the Demux switch 1105 and the Demux switch 1106 are turned on, so that the Source lines 1107 and Source lines 1108 of the driving IC charge all the red sub-pixel units in the pixel row in the first row. Then, the Demux switches corresponding to all the green sub-pixel units in the first row are opened under the control of the Demux switch control signal, that is, the Demux switches corresponding to the red sub-pixel units are switched to be opened, and the

Source lines

1107 and 1108 charge all the green sub-pixel units in the first row of pixel rows. Then, the Demux switches corresponding to all the blue sub-pixel units in the first row are turned on under the control of the Demux switch control signal, that is, the Demux switches corresponding to the green sub-pixel units are turned on, and the

Source lines

1107 and 1108 charge all the blue sub-pixel units in the pixel row in the first row. At this point, all pixels in the first row are charged. Then, the gate line 1109 of the second row in fig. 11 is opened, and all the pixel units of the second row are charged similarly to the charging process of all the pixels of the first row, until the charging of all the pixel rows on the TFT substrate is completed finally.

Based on fig. 10 and fig. 11, a display panel driving method provided in an embodiment of the present application, which is applied to the display panel provided in the embodiment of the present application, is described herein. Referring to fig. 12, fig. 12 is a flowchart illustrating steps of a display driving method according to an embodiment of the present application, where the method includes the following steps:

step 1201, determining a target sub-pixel unit to be charged on the TFT substrate.

Step 1202, charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

The target sub-pixel unit is charged, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit, and the method can be realized by the following steps:

and charging the target sub-pixel unit according to a target scanning sequence for scanning pixel rows of the TFT substrate, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

Optionally, the target scanning order may be a preset first scanning order or a preset second scanning order;

the first scanning sequence is that the target sub-pixel units on the TFT substrate are scanned downwards line by line from the target sub-pixel units on the first line of pixel rows on the TFT substrate; the second scanning sequence is to scan the target sub-pixel units on the TFT substrate upward row by row starting from the target sub-pixel unit of the last row of pixel rows on the TFT substrate.

Steps

1201 and 1202 are described below in conjunction with FIG. 13. As shown in fig. 13, fig. 13 is a schematic diagram of an architecture of a display screen driver according to an embodiment of the present application. In fig. 13, one small square indicates one sub-pixel unit, a horizontal line connected to the gates of all sub-pixel units indicated by small squares located in the same row indicates a gate line (gate), and a vertical line connected to the sources of all sub-pixel units indicated by small squares located in the same column indicates a data line. The 3 transversely adjacently arranged sub-pixel units form a pixel unit, and the 3 transversely adjacently arranged sub-pixel units of one pixel unit sequentially comprise from left to right: red, green and blue sub-pixel units, for example, the sub-pixel unit of the 3n-2 column in fig. 13 is a red sub-pixel unit, the sub-pixel unit of the 3n-1 column is a green sub-pixel unit, and the sub-pixel unit of the 3n column is a blue sub-pixel unit, where n is equal to1, 2. The gate lines in the odd-numbered rows are connected to the GOA circuit on the right side in fig. 13, the gate lines in the even-numbered rows are connected to the GOA circuit on the left side in fig. 13, for example, the

gate lines

1301 and 1303 are connected to the GOA circuit on the right side, and the

gate lines

1302 and 1304 are connected to the GOA circuit on the left side. The source of each column of pixels is connected to a data line.

After the electronic device acquires the current image frame data, the driving voltage and the target color corresponding to the target sub-pixel unit of each pixel row on the display screen can be determined according to the current image frame data. All red subpixels in the current image frame data may be dropped, all green subpixels in the current image frame data may be dropped, and all blue subpixels in the current image frame data may be dropped.

The red sub-pixel unit of the mth row and 3n-2 column on the TFT substrate corresponds to the sub-pixel of the mth row and 3n-2 column in the current image frame data, where the value range of m is an integer greater than or equal to1 and less than or equal to the row number k of the pixel row on the TFT substrate, n is greater than or equal to1 and less than or equal to the column number p of the pixels on the display screen, that is, m is greater than or equal to1 and less than or equal to k, n is greater than or equal to1 and less than or equal to p, where k is equal to 4 and p is equal to2 as an example. If the charging sequence of the sub-pixels is sequentially red sub-pixel, green sub-pixel and blue sub-pixel, currently, the red sub-pixel unit on the TFT substrate is used as the target sub-pixel unit, all red sub-pixel units on the TFT substrate can be charged simultaneously, and the red sub-pixel units of each pixel row on the TFT substrate can also be charged row by row, so that all red sub-pixel units on the TFT substrate can be charged.

For example, if the red sub-pixel units of each pixel row on the TFT substrate are charged row by row, so as to charge all the red sub-pixel units on the TFT substrate and charge all the red sub-pixel units on the TFT substrate, the target sub-pixel units on the TFT substrate may be scanned row by row downward starting from the target sub-pixel unit of the first pixel row on the TFT substrate according to a target scanning order, for example, the target scanning order is defined as a scanning order from top to bottom for convenience of description. It is also possible to scan the target sub-pixel units on the TFT substrate line by line from bottom to top, i.e. from the target sub-pixel unit of the last line of pixel rows.

When a scanning sequence from top to bottom is adopted, the gate line 1301 of the first row of pixel rows is opened firstly, that is, the gate line of the first row of pixel rows is scanned, and then all the red sub-pixel units in the first row of pixel rows are charged; after all the red sub-pixel units in the first row of pixel rows are charged, the gate line 1302 of the second row of pixel rows is turned on to charge all the red sub-pixel units in the second row of pixel rows; after all the red sub-pixel units in the second row of pixel rows are charged, the grid line 1303 of the third row of pixel rows is started, and all the red sub-pixel units in the third row of pixel rows are charged; and so on until the charging of the red subpixels in all pixel rows is completed.

When the red sub-pixel unit is taken as the target sub-pixel unit, the target color type corresponding to the target sub-pixel unit is the red type. The red light source component of the backlight module is controlled to emit light after the red sub-pixels in all the pixel rows are charged, and the green light source component and the blue light source component of the backlight module are controlled not to emit light, so that the color type of light emitted by the backlight module is a red type, and a red sub-frame picture is displayed on the display screen. When the scanning sequence from top to bottom is adopted, the target color type can be the red type before the red sub-pixel units in the first row of pixel rows are charged, and the color type of the light emitted by the backlight module is controlled to be the red type according to the red type, so that the red sub-pixel units in all the pixel rows are charged, and then the red sub-frame picture is displayed on the display screen.

After the red sub-pixel picture is displayed, all the green sub-pixel units on the TFT substrate are taken as target sub-pixel units, and the charging process of the green sub-pixel units is similar to that of the red sub-pixel units, so that the green sub-pixel picture is displayed, and the charging process of the green sub-pixel units is not repeated here.

After the green sub-pixel picture is displayed, all the blue sub-pixel units on the TFT substrate are taken as target sub-pixel units, and the charging process of the blue sub-pixel units is similar to that of the red sub-pixel units, so that the blue sub-pixel picture is displayed, and the charging process of the blue sub-pixel units is not repeated here.

The red subframe picture, the green subframe picture and the blue subframe picture are overlapped on human eyes, and the content is displayed as a frame of color picture. And repeating the above processes to display the red subframe picture, the green subframe picture and the blue subframe picture corresponding to the next frame of image data on the screen, namely displaying the next frame of color picture corresponding to the next frame of image data.

If the green sub-pixel unit on the TFT substrate is used as the target sub-pixel unit, the target color type corresponding to the target sub-pixel unit is a green type. And if the blue sub-pixel unit on the TFT substrate is taken as the target sub-pixel unit, the target color type corresponding to the target sub-pixel unit is a blue type. When the target color type is the green type, the green light source assembly in the backlight module can be controlled to emit green light, and the red light source assembly and the blue light source assembly in the backlight module are controlled to emit no light, so that the backlight module can emit the green light. When the target color type is a blue type, the blue light source component in the backlight module can be controlled to emit blue light, and the red light source component and the green light source component in the backlight module are controlled to emit no light, so that the backlight module can emit the blue light.

Wherein the driving voltage for charging each sub-pixel unit may be determined according to the current image frame data. For example, after acquiring luminance data of the sub-pixels in the 1 st row and 1 st column in the current image frame data corresponding to the red sub-pixel unit in the 1 st row and 1 st column on the display screen, the driving voltage corresponding to the red sub-pixel unit in the 1 st row and 1 st column on the display screen may be determined according to the luminance data of the sub-pixels in the 1 st row and 1 st column in the current image frame data. By analogy, the driving voltages corresponding to all red sub-pixel elements in the first row of pixel on the display screen can be determined.

According to the display screen driving method provided by the embodiment of the application, the target sub-pixel unit to be charged on the TFT substrate is determined, the target sub-pixel unit is charged, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit. Because the colorful light filtering film layer with lower light transmittance in the CF substrate is removed, the backlight module which can emit light rays with various color types is adopted to replace the backlight module which is used for emitting white light rays in the prior art, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, thereby realizing the display of colorful pictures without the colorful light filtering film layer, improving the light transmittance of the whole liquid crystal box, improving the utilization rate of the backlight module and reducing the power consumption of the backlight module. .

Optionally, determining a target sub-pixel unit to be charged may be implemented by the following steps:

and determining the sub-pixel units of the same color type on the TFT substrate as target sub-pixel units.

As introduced above, for example, a red type sub-pixel unit is determined as a target sub-pixel unit; or determining the sub-pixel unit of the green type as a target sub-pixel unit; or determining the sub-pixel unit of the blue type as the target sub-pixel unit.

Optionally, in step 1202, charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit may be implemented by:

charging the sub-pixel units of the same color type of each pixel row of the TFT substrate line by line;

under the condition that the number of the target pixel lines is larger than or equal to a first preset number, or under the condition that the target sub-pixel unit is charged for a first preset time, controlling the backlight module to emit light according to the target color type of the target sub-pixel unit;

the target pixel row number is the number of pixel rows to which the charged sub-pixel units of the same color type belong on the TFT substrate.

The sub-pixel units of the same color type of each pixel row of the TFT substrate are charged row by row, for example, the sub-pixel units of the same color type of each pixel row of the TFT substrate are charged row by row according to a scanning sequence from top to bottom, or the sub-pixel units of the same color type of each pixel row of the TFT substrate are charged row by row according to a scanning sequence from bottom to top. The sub-pixel units of the same color type include, for example, any one of a red type sub-pixel unit, a green type sub-pixel unit, and a blue type sub-pixel unit.

It should be noted that, when the sub-pixel units of the same color type in each pixel row of the TFT substrate are charged row by row, for example, referring to fig. 11, when the sub-pixel units of the red color type in each pixel row of the TFT substrate are charged row by row, the Demux switch 1105 is only required to be turned on once, that is, the sub-pixel units of the red color type in each pixel row can be charged through the data line corresponding to the Demux switch 1105. For example, when a scanning sequence from top to bottom is adopted, the red-type sub-pixel unit of the first row of pixel row corresponding to the first row of gate line 1104 is scanned first, that is, the gate of the red-type sub-pixel unit of the first row of pixel row corresponding to the first row of gate line 1104 is opened, then the Demux switch 1105 and the Demux switch 1106 are opened, that is, the red-type sub-pixel unit 1101 is charged by the data line corresponding to the Demux switch 1105, and the red-type sub-pixel unit 1110 is charged by the data line corresponding to the Demux switch 1106; after the charging of the red-type sub-pixel units of the first row of pixel rows is completed, the red-type sub-pixel units of the second row of pixel rows corresponding to the second row of gate lines 1109 are scanned again, that is, the gates of the red-type sub-pixel units of the second row of pixel rows corresponding to the second row of gate lines 1109 are opened, at this time, since the Demux switch 1105 is in an open state, the Demux switch 1105 does not need to be opened again, the red-type sub-pixel units 1111 can be charged through the data lines corresponding to the Demux switch 1105, and the red-type sub-pixel units 1112 are charged through the data lines corresponding to the Demux switch 1106. And repeating the steps row by row, and after the red-type sub-pixel units in the second row of pixel rows are charged, charging the red-type sub-pixel units in the third row. It can be seen that the process of charging the red type sub-pixel units of all pixel rows only needs to turn on Demux switch 1105 and Demux switch 1106 once. Similarly, in the process of charging the green-type sub-pixel units of all the pixel rows, only the Demux switches corresponding to the green-type sub-pixel units need to be turned on once, and in the process of charging the blue-type sub-pixel units of all the pixel rows, only the Demux switches corresponding to the blue-type sub-pixel units need to be turned on once. Therefore, the charging process of all the sub-pixel units of all the pixel rows is realized, and compared with the prior art that frequent switching needs to be carried out among demux switches corresponding to the sub-pixel units of multiple color types, the pixel driving method in the prior art is low in driving efficiency due to the fact that time is consumed for switching the demux switches. The display screen driving method provided by the embodiment of the application avoids frequent switching of the Demux switch, so that the display screen driving efficiency can be improved.

Next, the number of target pixel rows is illustrated, where the number of all pixel rows is N, for example, and the first predetermined number is N, for example

The target number of pixel lines is, for example, equal to

And controlling the backlight module to emit light according to the target color type of the target sub-pixel unit. Alternatively, when the number of target pixel rows is equal to N, for example, the backlight module may be controlled to emit light according to the target color type of the target sub-pixel unit. And when the number of the target pixel rows is equal to N, the target sub-pixel units of all the pixel rows are charged, and then the backlight module is controlled to emit light according to the target color type of the target sub-pixel units.

The liquid crystal needs to rotate under the drive of voltage after the pixels are charged, the rotation process needs time, light can not be transmitted before the liquid crystal rotates, and if the backlight module is controlled to emit light before the liquid crystal rotates, the light emitted by the backlight module is wasted, so that the backlight module is controlled to emit light after the liquid crystal starts to rotate, and the power consumption of the backlight module can be reduced. According to the embodiment of the application, the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit under the condition that the number of the target pixel lines is larger than or equal to the first preset number or the target sub-pixel unit is charged for the first preset time, so that the power consumption of the backlight module can be reduced.

It should be noted that, when the first preset time period passes after the target sub-pixel units in all the pixel rows are charged, the backlight module is controlled to emit light in the target color, so that it can be ensured that the liquid crystal is fully rotated in place, and the effect of the displayed image frame can be improved.

The display screen driving method provided by the embodiment of the application can control the backlight module to emit the light rays with the target color type after the target sub-pixel units of part of all the pixel rows are charged or after the target sub-pixel units of all the pixel rows are charged. The scheme can reduce the power consumption of the backlight module, and the light transmission efficiency is highest after all liquid crystals reach respective stable positions under the driving of pixel voltage. At this time, the backlight module is opened, and the light utilization efficiency of the backlight module is high.

It should be noted that, by adopting the scheme of controlling the backlight module to emit the light of the target color type after the target sub-pixel units of all the pixel rows are charged, the time for the sub-pixel units charged first and the time for the sub-pixel units charged later to display the transmitted light are consistent, and the brightness of the displayed picture content is balanced.

Optionally, before charging the target sub-pixel unit according to the target scanning order of scanning the pixel rows of the TFT substrate in step 1202, the method may further include the following steps:

acquiring a third scanning sequence corresponding to a previous frame image of a current frame image to be displayed;

determining a target scanning order according to a third scanning order, wherein the target scanning order is opposite to the third scanning order.

If the third scanning order corresponding to the previous frame of image is, for example, a scanning order from top to bottom, the target scanning order is a scanning order from bottom to top; for example, in the case where the third scanning order corresponding to the previous frame image is a scanning order from bottom to top, the target scanning order is a scanning order from top to bottom. That is, the two scanning orders can be alternated, so as to realize the brightness equalization of the two adjacent frames of images.

Optionally, before the charging of the target sub-pixel unit and the controlling of the backlight module to emit light according to the target color type of the target sub-pixel unit in step 1202, the method may further include the following steps:

and controlling the grid electrodes of the sub-pixel units of all the pixel rows on the TFT substrate to be in an open state, and writing the target voltage into the sub-pixel units of all the pixel rows so as to ensure that the sub-pixel units of all the pixel rows do not penetrate through the light emitted by the backlight module.

In the embodiment of the present application, the target voltage is less than the minimum voltage capable of rotating the liquid crystal, for example, the minimum voltage capable of rotating the liquid crystal is 0.2 v, and then the target voltage is less than 0.2 v, in this case, the liquid crystal cannot be controlled to rotate, so that the sub-pixel units of all pixel lines cannot penetrate through the light emitted by the backlight module, and the sub-pixel units of all pixel lines display black images, so as to initialize the display content of the display screen, and ensure the real effect of the subsequently displayed image frame images.

It should be noted that, when scanning the gate line of a certain pixel row, after charging the target sub-pixel unit of the pixel row, the target voltage may be written into the green sub-pixel unit and the blue sub-pixel unit in the pixel row, so that the other sub-pixel units in the pixel row do not transmit light.

For example, as shown in fig. 14, fig. 14 is a schematic diagram of charging red sub-pixel units of all pixel rows according to an embodiment of the present application. When the red sub-pixel unit is taken as the target sub-pixel unit, all the red sub-pixel units in fig. 14 transmit the red light emitted by the backlight module, a graph drawn by a thin solid line in a small square in fig. 14 represents one red sub-pixel unit transmitting the red light emitted by the backlight module, and graphs in the other unfilled small squares represent other sub-pixel units which are not light-tight when the red sub-pixel unit transmits the red light.

For example, as shown in fig. 15, fig. 15 is a schematic diagram of charging green sub-pixel units of all pixel rows according to an embodiment of the present disclosure. When the green sub-pixel unit is taken as the target sub-pixel unit, all the green sub-pixel units in fig. 14 transmit the green light emitted by the backlight module, a graph drawn by a thin solid line in a small square in fig. 14 represents one green sub-pixel unit transmitting the green light emitted by the backlight module, and graphs in the other unfilled small squares represent other sub-pixel units which are not light-tight when the green sub-pixel unit transmits the green light.

For example, as shown in fig. 16, fig. 16 is a schematic diagram of charging the blue sub-pixel units of all pixel rows according to the embodiment of the present application. When the blue sub-pixel unit is taken as the target sub-pixel unit, all the blue sub-pixel units in fig. 14 transmit the blue light emitted by the backlight module, a graph drawn by a thin solid line in a small square in fig. 14 represents one blue sub-pixel unit transmitting the blue light emitted by the backlight module, and graphs in the other unfilled small squares represent other sub-pixel units which are not light-tight when the blue sub-pixel unit transmits the blue light.

It should be noted that, in the display screen driving method provided in the embodiment of the present application, the execution main body may be a display screen driving apparatus, or a control module in the display screen driving apparatus for executing the display screen driving method. In the embodiment of the present application, a method for executing display screen driving by a display screen driving apparatus is taken as an example, and the display screen driving apparatus provided in the embodiment of the present application is described.

Optionally, the charging of the target sub-pixel unit and the controlling of the backlight module to emit light for a second preset time period according to the target color type of the target sub-pixel unit may be implemented by the following steps:

charging the target sub-pixel unit, and controlling the backlight module to emit light for a second preset time according to the target color type of the target sub-pixel unit;

and the second preset duration is determined according to the frame rate of the frame image displayed on the display screen.

In order to make the liquid crystal rotate sufficiently, after the sub-frame of the target color type is displayed, a second preset time period may be waited, for example, the second preset time period is, for example, a time period between more than 10 microseconds and less than 20 milliseconds, so that the content of the sub-frame of the target color type can be sufficiently displayed.

Referring to fig. 17, fig. 17 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application, where the apparatus 1700 is disposed in an electronic device of a display panel described in the foregoing embodiment, and the apparatus 1700 includes:

a first determining module 1710, configured to determine a target sub-pixel unit to be charged on the TFT substrate;

the charging module 1720 is configured to charge the target sub-pixel unit, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

The display screen drive arrangement that this application embodiment provided, because the lower colored filtering film layer of light transmissivity in the CF base plate has been removed, and adopt the backlight unit that can send the light of multiple colour type to replace the backlight unit who is used for sending white light among the prior art, according to the target colour type of target sub-pixel unit, control backlight unit gives out light, thereby make the light of target colour type that target sub-pixel unit can see through backlight unit and send, the light transmissivity of whole liquid crystal box has been improved, the utilization ratio of backlight unit has been improved, the consumption of backlight unit has been reduced.

Optionally, the charging module 1720 is specifically configured to charge the target sub-pixel unit according to a target scanning sequence for scanning a pixel row of the TFT substrate, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

Optionally, the target scanning order is a preset first scanning order or a preset second scanning order;

the first scanning sequence is that the target sub-pixel units on the TFT substrate are scanned downwards line by line from the target sub-pixel units on the first line of pixel lines on the TFT substrate; and the second scanning sequence is to scan the target sub-pixel units on the TFT substrate line by line upwards from the target sub-pixel units on the last line of pixel lines on the TFT substrate.

Optionally, the first determining module 1710 is specifically configured to determine the sub-pixel unit of the same color type on the TFT substrate as the target sub-pixel unit.

Optionally, the charging module 1720 is specifically configured to charge the sub-pixel units of the same color type in each pixel row of the TFT substrate row by row; controlling the backlight module to emit light according to the target color type of the target sub-pixel unit under the condition that the number of target pixel lines is greater than or equal to a first preset number or under the condition that the target sub-pixel unit is charged for a first preset time period;

the target pixel row number is the number of pixel rows to which charged sub-pixel units of the same color type belong on the TFT substrate.

Optionally, the method further includes:

the acquisition module is used for acquiring a third scanning sequence corresponding to a previous frame image of a current frame image to be displayed;

a second determining module, configured to determine the target scanning order according to the third scanning order, where the target scanning order is opposite to the third scanning order.

Optionally, the method further includes:

and the control module is used for controlling the gates of the sub-pixel units of all the pixel rows on the TFT substrate to be in an open state and writing a target voltage into the sub-pixel units of all the pixel rows so as to ensure that the sub-pixel units of all the pixel rows do not penetrate through light rays emitted by the backlight module.

Optionally, the charging module 1720 is specifically configured to charge the target sub-pixel unit, and control the backlight module to emit light for a second preset time according to the target color type of the target sub-pixel unit; and the second preset duration is determined according to the frame rate of the frame image displayed on the display screen.

The pixel driving device in the embodiment of the present application may be a device, or may be a component in a terminal, an integrated circuit, or a chip. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

The pixel driving device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The pixel driving device provided in the embodiment of the present application can implement each process implemented by the pixel driving device in the method embodiment of fig. 12, and is not described herein again to avoid repetition.

Optionally, an electronic device is further provided in an embodiment of the present application, as shown in fig. 18, fig. 18 is a schematic diagram of a hardware structure of an electronic device implementing the embodiment of the present application. The electronic device 1800 includes a processor 1801, a memory 1802, and a program or an instruction stored in the memory 1802 and executable on the processor 1801, where the program or the instruction implements the processes of the embodiment of the pixel driving method when executed by the processor 1801, and can achieve the same technical effects, and therefore, the descriptions thereof are omitted here to avoid repetition.

It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.

The electronic device 1900 includes, but is not limited to: a radio frequency unit 1901, a network module 1902, an audio output unit 1903, an input unit 1904, a sensor 1905, a display unit 1906, a user input unit 1907, an interface unit 1908, a memory 1909, and a processor 1910.

Those skilled in the art will appreciate that the electronic device 1900 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1910 through a power management system, so that functions such as charging, discharging, and power consumption management are managed through the power management system. The electronic device structure shown in fig. 19 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description thereof is omitted.

The processor 1910 is configured to determine a target sub-pixel unit to be charged on the TFT substrate;

The processor 1910 is further configured to charge the target sub-pixel unit according to a target scanning order for scanning a pixel row of the TFT substrate, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

The processor 1910 is further configured to determine sub-pixel units of the same color type on the TFT substrate as the target sub-pixel unit.

The processor 1910 is further configured to charge the sub-pixel units of the same color type of each pixel row of the TFT substrate row by row;

controlling the backlight module to emit light according to the target color type of the target sub-pixel unit under the condition that the number of target pixel lines is greater than or equal to a first preset number or under the condition that the target sub-pixel unit is charged for a first preset time period;

The target scanning sequence is a preset first scanning sequence or a preset second scanning sequence;

The processor 1910 is further configured to obtain a third scanning order corresponding to a previous frame image of the current frame image to be displayed;

determining the target scanning order according to the third scanning order, wherein the target scanning order is opposite to the third scanning order.

The processor 1910 is further configured to control gates of the sub-pixel units in all pixel rows on the TFT substrate to be in an open state, and write a target voltage into the sub-pixel units in all pixel rows, so that the sub-pixel units in all pixel rows do not transmit light emitted by the backlight module;

the target voltage is smaller than a preset threshold voltage, and the preset threshold voltage is determined according to a minimum voltage for controlling the rotation of the liquid crystal.

The processor 1910 is further configured to charge the target sub-pixel unit, and control the backlight module to emit light for a second preset time according to the target color type of the target sub-pixel unit.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above noise reduction function control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device in the above embodiment. Readable storage media, including computer-readable storage media, such as Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, etc.

It should be understood that, in the embodiment of the present application, the input Unit 1904 may include a Graphics Processing Unit (GPU) 19041 and a microphone 19042, and the Graphics Processing Unit 19041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1906 may include a display panel 19061, and the display panel 19061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1907 includes a touch panel 19071 and other input devices 19072. A touch panel 19071, also referred to as a touch screen. The touch panel 19071 may include two parts of a touch detection device and a touch controller. Other input devices 19072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1909 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. Processor 1910 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1910.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the pixel driving method embodiment, and the same technical effect can be achieved.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

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 apparatus 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 apparatus. 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 apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

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 solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A display screen, wherein the display screen comprises: the backlight module comprises a CF substrate of a color filter film, a TFT substrate of a thin film transistor, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

2. The display screen of claim 1, wherein the color types of the sub-pixel units comprise: red type, blue type and green type, backlight unit includes: a red light source assembly, a green light source assembly, and a blue light source assembly;

the red light source component of the backlight module emits light when the red type sub-pixel unit is enabled; the green light source component of the backlight module emits light when the green type sub-pixel unit is started; with the sub-pixel cell of the blue type enabled, the blue light source component of the backlight module emits light.

3. A display driving method applied to an electronic device including the display according to claim 1 or 2, the method comprising:

determining a target sub-pixel unit to be charged on the TFT substrate;

4. The method according to claim 3, wherein the charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit comprises:

and charging the target sub-pixel unit according to a target scanning sequence for scanning the pixel rows of the TFT substrate, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

5. The method of claim 4, wherein the target scan order is a preset first scan order or a preset second scan order;

6. The method of claim 3, wherein the determining the target sub-pixel cell to be charged on the TFT substrate comprises:

and determining the sub-pixel units of the same color type on the TFT substrate as the target sub-pixel units.

7. The method according to claim 6, wherein the charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit comprises:

8. The method of claim 4, further comprising, prior to charging the target sub-pixel cell according to a target scan order for scanning the pixel rows of the TFT substrate:

9. The method according to claim 3, further comprising, before the charging the target sub-pixel unit and controlling the backlight module to emit light according to a target color type of the target sub-pixel unit:

and controlling the gates of the sub-pixel units of all the pixel rows on the TFT substrate to be in an open state, and writing a target voltage into the sub-pixel units of all the pixel rows so as to make the sub-pixel units of all the pixel rows not penetrate through the light emitted by the backlight module.

10. The method according to claim 3, wherein the charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit comprises:

11. A display panel driving apparatus provided in an electronic device including the display panel according to claim 1 or 2, the apparatus comprising:

12. The apparatus according to claim 11, wherein the charging module is specifically configured to charge the target sub-pixel unit according to a target scanning order for scanning the pixel rows of the TFT substrate, and to control the backlight module to emit light according to a target color type of the target sub-pixel unit.

13. The apparatus of claim 12, wherein the target scan order is a preset first scan order or a preset second scan order;

14. The apparatus according to claim 11, wherein the first determining module is specifically configured to determine sub-pixel units of a same color type on the TFT substrate as the target sub-pixel unit.

15. The apparatus according to claim 14, wherein the charging module is specifically configured to charge the sub-pixel units of the same color type of each pixel row of the TFT substrate row by row; controlling the backlight module to emit light according to the target color type of the target sub-pixel unit under the condition that the number of target pixel lines is greater than or equal to a first preset number or under the condition that the target sub-pixel unit is charged for a first preset time period;

16. The apparatus of claim 12, further comprising:

17. The apparatus of claim 11, further comprising:

18. The apparatus of claim 11,

the charging module is specifically used for charging the target sub-pixel unit and controlling the backlight module to emit light for a second preset time according to the target color type of the target sub-pixel unit;

19. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the image display method according to any one of claims 3 to 10.

20. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the image display method according to any one of claims 3 to 10.