CN112581874B - Display panel, display device, display control method and device and terminal equipment - Google Patents
Display panel, display device, display control method and device and terminal equipment Download PDFInfo
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- CN112581874B CN112581874B CN201910933159.1A CN201910933159A CN112581874B CN 112581874 B CN112581874 B CN 112581874B CN 201910933159 A CN201910933159 A CN 201910933159A CN 112581874 B CN112581874 B CN 112581874B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Abstract
The disclosure relates to a display panel, a display device, a display control method, a display device and terminal equipment, and belongs to the field of display. The display panel comprises a first display area and a second display area, wherein the transmittance of the first display area is greater than that of the second display area, and the first refresh rate of the first display area is greater than the second refresh rate of the second display area. In the embodiment of the disclosure, the display panel has two display regions, the transmittance of the two display regions is different, correspondingly, the refresh rate of the two display regions used in the implementation is also different, and the refresh rate of the display region with a high transmittance is also high, so that the number of times of charging the pixels in the display region with a high refresh rate is more frequent, thereby making up for the brightness loss caused by the high loss of the high transmittance display region, reducing the display difference between the two display regions, and improving the uniformity of the display panel.
Description
Technical Field
The present disclosure relates to the field of display, and in particular, to a display panel, a display device, a display control method, a display control device, and a terminal device.
Background
With the development of mobile terminal technology, a full-screen mobile terminal becomes an important direction for the development of the current mobile terminal.
At present, the main difficult problem of the full-screen mobile terminal is concentrated on the setting of the front camera, namely how to solve the problem that the front camera occupies the screen. The current solution mainly comprises removing a front camera, a double-sided screen (the front camera is arranged on a back screen), a retractable camera, a hidden camera and the like.
The hidden camera is a scheme of hiding the camera below the display panel to realize full-screen setting, for example, the display panel is provided with a high-transmittance display area, the front camera is arranged below the high-transmittance display area, the display area of the screen is not occupied, and full-screen design is realized.
Disclosure of Invention
The disclosure provides a display panel, a display device, a display control method and device, and a terminal device, which can improve the display uniformity of the display panel.
According to a first aspect of the embodiments of the present disclosure, there is provided a display panel including a first display region and a second display region, a transmittance of the first display region is greater than a transmittance of the second display region, and a first refresh rate of the first display region is greater than a second refresh rate of the second display region.
In the embodiment of the disclosure, the display panel has two display regions, the transmittance of the two display regions is different, and accordingly, the refresh rate of the two display regions in implementation is also different, and the refresh rate of the display region with a high transmittance is also high, and the pixel voltage is rewritten to the pixel in the display region by the refresh driving circuit every time, so that the number of times of charging the pixel in the display region with a higher refresh rate is more frequent, thereby making up for the loss of brightness caused by the large energy consumption of the display region with a high transmittance, reducing the display difference between the two displays, and improving the uniformity of the display panel.
Optionally, the signal lines of the first display region and the signal lines of the second display region are insulated from each other.
Optionally, the first display area includes less than 6 rows and less than 6 columns of pixels.
Optionally, the first display area adopts at least one of the following settings: all the data lines are connected together; all gate lines are connected together.
Optionally, each data line and each gate line in the first display region are insulated from each other.
Optionally, the first refresh rate is an integer multiple of the second refresh rate.
In a second aspect, there is provided a display device comprising the display panel according to any one of the first aspect.
Optionally, the display device further comprises:
a driving unit configured to acquire a driving signal; and controlling the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signal.
Optionally, the driving unit is configured to acquire image frames to be displayed, and the number of the image frames to be displayed in a unit time is equal to the second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltages based on pixel gray-scale values corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display a supplementary frame, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frame; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
Optionally, when the first refresh rate is a non-integer multiple of the second refresh rate, at least one supplementary frame is disposed after at least two consecutive image frames, and an image displayed by each supplementary frame is an average value of at least one adjacent image frame of the supplementary frame.
Optionally, the driving unit is configured to provide a pixel voltage of a first gray scale of a first color to the first display region, which is smaller than a pixel voltage of a first gray scale of a first color provided to the second display region, where the first color is any color, and the first gray scale is any gray scale.
Optionally, when the first refresh rate is a non-integral multiple of the second refresh rate, at least one supplementary frame is provided after at least two consecutive image frames, and the luminance of each sub-pixel in the first display region corresponding to each supplementary frame is an average value of the luminance of each sub-pixel in the first display region corresponding to at least one adjacent image frame of the supplementary frame.
Optionally, when the sub-pixels of the first display area display the same gray scale with the first refresh rate and the sub-pixels of the second display area display the same gray scale with the second refresh rate, a luminance difference between the sub-pixels of the first display area and the sub-pixels of the second display area is smaller than a threshold.
Optionally, the threshold is less than or equal to 5%.
In a third aspect, there is provided a display control method applied to the display device of the second aspect, the method including:
acquiring a driving signal;
and controlling the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signal.
Optionally, the acquiring the driving signal includes:
acquiring image frames to be displayed, wherein the number of the image frames to be displayed in unit time is equal to the second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltages based on pixel gray-scale values corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display supplementary frames, determining pixel voltages based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frames; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
In a fourth aspect, there is provided a display control apparatus applied to the display apparatus of the second aspect, the apparatus comprising:
an acquisition module configured to acquire a driving signal;
the control module is configured to control the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signals.
In a fifth aspect, a terminal device is provided, where the terminal device includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the display control method of the second aspect.
In a sixth aspect, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the method of the second aspect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic view illustrating a structure of a display panel according to an exemplary embodiment;
FIG. 2 is a schematic diagram of an application of the display panel of FIG. 1;
FIG. 3 is a hierarchical structure diagram of the display panel of FIG. 1;
fig. 4 is a schematic structural diagram illustrating a data line of a display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic routing diagram of a first display area according to an embodiment of the disclosure;
fig. 6 is a timing chart in the related art;
FIG. 7 is a timing diagram of a pixel in a first display region when the structure of FIG. 5 of the present disclosure is employed;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
FIG. 9 is a flow chart illustrating a display control method according to an exemplary embodiment;
FIG. 10 is a block diagram illustrating a display control apparatus according to an exemplary embodiment;
fig. 11 is a block diagram illustrating a terminal device according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.
An Organic Light Emitting Diode (OLED) display panel has an increasing market share due to its advantages of high sensitivity, high contrast, wide viewing angle, low power consumption, thin and Light weight, and the like.
When the OLED display panel is used as the display panel of the hidden camera scheme, in order to achieve a high transmittance in the high transmittance display area on the OLED display panel, the high transmittance display area needs to adopt different film materials and driving modes from those of the non-high transmittance display area. For example, the anode and cathode materials used in the high transmittance display region are transparent conductive thin film materials, the non-high transmittance display region is made of metal materials, and the transmittance of the transparent conductive thin film materials is higher than that of the metal materials; the high transmittance display area adopts a passive driving mode, the non-high transmittance display area adopts an active driving mode, and compared with the active driving mode, the passive driving mode does not need to be provided with a thin film transistor, so that the transmittance is high.
The high transmittance display region has a shorter service life than the non-high transmittance display region due to the difference in film material and driving method (film structure) between the high transmittance display region and the non-high transmittance display region. When the same service life is achieved, the high-transmittance display area has larger loss, so that the energy consumption of the high-transmittance display area is larger than that of the non-high-transmittance display area, namely, the electric energy loss of the high-transmittance display area is higher than that of the non-high-transmittance display area. Then, if the high transmittance display region and the non-high transmittance display region are driven by the same electrical signal, the actual display luminance is different, and the high transmittance display region has a lower luminance than the non-high transmittance display region, resulting in non-uniformity of display between the high transmittance display region and the non-high transmittance display region.
It is noted that the high transmittance display area can be used to hide other optical devices such as a light sensor (light sensor) besides the front camera.
Fig. 1 is a schematic structural diagram illustrating a display panel according to an exemplary embodiment. Referring to fig. 1, the display panel 100 includes a first display area 101 and a second display area 102, the second display area 102 surrounds the first display area 101, and the first display area 101 is disposed near a side of the second display area 102. The transmittance of the first display region 101 is higher than that of the second display region 102, that is, the first display region 101 is the high transmittance display region, and the second display region 102 is the non-high transmittance display region.
Here, fig. 1 is only an example of a display panel, and in other implementations, the shape, position, and size of the first display region 101 may be implemented differently, for example, the first display region 101 is circular, or the first display region 101 is located in the middle of the display panel, and the like.
Fig. 2 is an application schematic diagram of the display panel in fig. 1, and referring to fig. 2, the display panel 100 is applied in a terminal device 10 (e.g. a mobile terminal), and in the terminal device 10, an optical component 20 such as a front camera or an optical sensor may be disposed at a position corresponding to a first display area 101.
Fig. 3 is a hierarchical structure diagram of the display panel 100. Referring to fig. 3, the display panel 100 includes a substrate 110, an array structure 120 on the substrate 110 (e.g., a glass substrate), an organic light emitting material layer 130, and a cathode layer 140 in this order. Wherein the difference in the life time of the first display region 101 and the second display region 102 may be caused by at least one of a film material and a film structure. For example, the array structure 120 and the cathode layer 140 of the first display region 101 are made of a high transmittance material, and the array structure 120 and the cathode layer 140 of the second display region 102 are made of a general transmittance material, and the high transmittance material has a shorter service life than the general transmittance material. For another example, the array structure 120 of the second display region 102 includes a thin film transistor array and an anode connected to the thin film transistor array, that is, the second display region 102 adopts an active driving manner, and the array structure 120 of the first display region 101 includes only the anode array, that is, the first display region adopts a passive driving manner, so that the service life of the passive driving manner is shorter than that of the active driving manner due to the difference between the film layer structures of the two.
One high transmittance display region may be provided on the display panel, or two or more high transmittance display regions may be provided.
Of course, the structure of fig. 3 is only an example, the entire panel may also be a passive-drive OLED display panel, or the entire panel may also be an active-drive OLED display panel, as long as the first display region 101 and the second display region 102 exist, the scheme provided by the present disclosure may be adopted.
In the display panel shown in fig. 1, the first refresh rate of the first display region 101 is greater than the second refresh rate of the second display region 102.
In the embodiment of the disclosure, the display panel has two display regions, the transmittance of the two display regions is different, and accordingly, the refresh rate used by the two display regions in implementation is also different, the refresh rate used by the display region with a high transmittance is also high, and the pixel voltage is rewritten to the pixel in the display region by the refresh driving circuit every time, so that the number of times of charging the pixel in the display region with a higher refresh rate is more frequent, thereby making up for the loss of brightness caused by the large energy consumption of the display region with a high transmittance, reducing the display difference between the two display regions, and improving the uniformity of the display panel.
It should be noted that, since the power consumption of the high transmittance display region in the present disclosure is related to the usage time, the display manner in which the first refresh rate of the first display region 101 is greater than the second refresh rate of the second display region 102 in the present disclosure may be maintained all the time during the usage of the display panel; or the display panel can be started after the display panel reaches a certain use time.
Fig. 4 shows a schematic structural diagram of a data line of a display panel provided by an embodiment of the present disclosure. Referring to fig. 4, the signal lines 121 of the first display region 101 and the signal lines 121 of the second display region 102 are insulated from each other.
Here, the signal line 121 refers to a gate line 122 and a data line 123 connected to a thin film transistor in an array structure, the gate line 122 is connected to a gate electrode of the thin film transistor, the data line 123 is connected to a source electrode of the thin film transistor, and a drain electrode of the thin film transistor is connected to an anode electrode. The gate line 122 is used to provide a gate driving signal output by the gate driving circuit to the gate of the thin film transistor, thereby controlling the switching of the thin film transistor; the data line 123 is used for supplying a data signal output by the source driving circuit to the source of the thin film transistor, thereby controlling the brightness of the sub-pixel corresponding to the thin film transistor.
In this implementation, the signal lines of the two display regions are insulated, which facilitates display control of the two display regions with different refresh rates.
In the embodiment of the present disclosure, the thin film transistor may be either a PMOS transistor or an NMOS transistor.
As shown in fig. 4, in order to insulate the signal line 121 of the first display region 101 from the signal line 121 of the second display region 102, one original gate line 122 or data line 123 is broken into a plurality of segments when passing through the first display region 101, thereby realizing insulation of the signal lines of the two display regions.
For the disconnected signal lines, the parts of the signal lines belonging to the two display areas are connected to the driving circuit through different lead wires, and the lead wires and the signal lines are arranged in the interlayer and connected through via holes between the layers, so that the wiring is convenient.
For example, one signal line is broken into 3 segments, and two ends of the signal line belong to the second display area, then the two segments can be connected through a lead wire and then connected to the driving circuit, and the lead wire can bypass the first display area when being arranged, so that the transmittance of the first display area is prevented from being influenced.
In one implementation of the embodiment of the present disclosure, the first display region 101 includes less than 6 rows and less than 6 columns of pixels.
In this implementation, the number of pixels in the high transmittance display area is typically small, e.g., less than 6 rows and columns are included, which is typically used to design an off-screen camera, an off-screen fingerprint, etc., to achieve a full screen design.
Fig. 5 is a schematic trace diagram of a first display area according to an embodiment of the disclosure. Referring to fig. 5, when the number of pixels included in the first display region 101 is small, the first display region adopts at least one of the following settings: all the data lines 123 are connected together; all gate lines 122 are connected together.
In this implementation, since the number of pixels in the first display region is small, the data lines of the part of pixels are connected together or the gate lines of the part of pixels are connected together, and the pixel control of the display panel can be simplified.
In this implementation, since the data lines in the first display region are connected together, and each data line is connected to a column of sub-pixels, in this case, a row of sub-pixels in the first display region are controlled simultaneously, and the row of sub-pixels displays the same brightness; or, the grid lines in the first display region are connected together, and each grid line is connected with a row of sub-pixels, in this case, a column of sub-pixels in the first display region are controlled simultaneously, and the column of sub-pixels display the same brightness; alternatively, the gate lines and the data lines in the first display region are connected together, in which case all the sub-pixels in the first display region are controlled simultaneously and the sub-pixels in the first display region display the same brightness.
In the above cases, several pixels display the same color and brightness, and the color and brightness displayed by these several pixels can be the average of the color and brightness that these two pixels originally need to display.
Fig. 6 is a timing diagram of a related art, and fig. 7 is a timing diagram of a pixel in a first display region when the structure of fig. 5 of the present disclosure is adopted. With the structure of fig. 5, the frequency of writing the gate-on level (low level) of the gate line (gate) increases, and accordingly, the frequency of writing the data voltage to the data line (source) also increases.
In another implementation manner of the embodiment of the present disclosure, the number of pixels in the first display region 101 is relatively large, for example, the number of rows and columns included in the first display region is greater than or equal to 6,
when the number of pixels included in the first display region 101 is large, each data line and each gate line in the first display region 101 are insulated from each other.
In this implementation manner, if the number of the sub-pixels in the first display region is large, the data lines and the gate lines are both insulated at this time, and each sub-pixel is controlled independently, so as to ensure the display accuracy of the first display region 101.
In one implementation of the disclosed embodiment, the first refresh rate may be an integer multiple of the second refresh rate.
In the implementation mode, the refresh rate of the integral multiple of the low-transmittance display area is used as the refresh rate of the high-transmittance display area, so that the first display area and the second display area can always keep the same picture, and the display uniformity is ensured by adjusting the refresh rate.
For example, the first refresh rate is twice the second refresh rate, so that on one hand, the control timing is simple, and on the other hand, the refresh rate can be increased, and the purpose of display uniformity can be achieved.
In another implementation of the disclosed embodiment, the first refresh rate may also be a non-integer multiple of the second refresh rate.
Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. Referring to fig. 8, the display device includes a display panel 100.
Optionally, the display device further comprises: a driving unit 200 configured to acquire a driving signal; and controlling the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signals.
Illustratively, the driving unit 200 is typically a driving Integrated Circuit (IC). The driving IC comprises a grid driving circuit and a source driving circuit, wherein the grid driving circuit is used for writing a grid driving signal into the grid line so as to control the on-off of the thin film transistor; the source driver circuit is used to write data signals to the data lines, thereby controlling the color and brightness of each pixel.
Optionally, the driving unit 200 is configured to acquire image frames to be displayed, and the number of the image frames to be displayed in a unit time is equal to the second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltage based on the pixel gray-scale value corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display the supplementary frame, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frame; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
The unit time here may be one second. The image frame refers to an image which is transmitted to the display panel by the terminal device and is to be displayed on the display panel, and the image is displayed on the first display area and the second display area simultaneously. Since the refresh rate of the first display area is greater than that of the second display area, the first display area can display a part of frames in addition to the image of the image frame, and the part of frames are used for displaying the supplementary frame. The content of the supplementary frame is determined according to the contents of a plurality of adjacent image frames.
In this implementation, since the refresh rate of the first display region is greater than that of the second display region, but the image frame acquired by the display device is the same as that of the second display region, a supplemental frame needs to be displayed in addition to the image frame for the first display region, thereby ensuring a high refresh rate. The supplementary frame is determined by the image frames before and after the supplementary frame, and consistency of image display is guaranteed.
Here, the supplementary frames may be uniformly spaced between a plurality of image frames, for example, one supplementary frame is disposed after every 6 image frames if there are 60 image frames and 10 supplementary frames, and for example, one supplementary frame is disposed after every 60 image frames if there are 60 image frames and 60 supplementary frames.
In this implementation, the number of image frames adjacent to the supplemental frame refers to a total number of image frames adjacent thereto before, after, or before and after the supplemental frame.
Optionally, when the first refresh rate is an integer multiple of the second refresh rate, at least one supplementary frame is disposed behind each image frame, and the images displayed by each image frame and at least one supplementary frame behind the image frame are the same. The supplemental frame is displayed immediately after the image frame.
In this implementation, when the first refresh rate is an integer multiple of the second refresh rate, only the image frame needs to be repeatedly displayed as a supplemental frame at this time, and the processing is simple.
Optionally, the driving unit 200 is configured to provide a pixel voltage of a first gray scale of a first color to the first display region, where the first color is any color, which is smaller than a pixel voltage of a first gray scale of the first color provided to the second display region, where the first gray scale is any gray scale.
For example, if the first display region and the second display region simultaneously display the red gray scale of 5, the pixel voltage provided by the driving unit 200 to the first display region is smaller than that of the second display region.
In this implementation, when the first refresh rate is an integer multiple of the second refresh rate, if the first display region and the second display region use the same pixel voltage, the final display luminance of the first display region is higher than the same gray-scale luminance of the second display region. To avoid this, the pixel voltage supplied to the pixels in the first display region is controlled to be smaller than the pixel voltage supplied to the pixels in the second display region. Since several identical frames of the first display area correspond to one frame of the second display area, the sum of the luminance of the several identical frames of the first display area is equal to the luminance of one frame of the second display area, and the display uniformity is ensured.
Optionally, when the first refresh rate is a non-integer multiple of the second refresh rate, at least one supplementary frame is provided after at least two consecutive image frames, and the luminance of each sub-pixel in the first display area corresponding to each supplementary frame is an average value of the luminance of each sub-pixel in the first display area corresponding to at least one adjacent image frame of the supplementary frame.
In the implementation mode, the average value of a plurality of images before and after is used as a supplementary frame, so that the consistency of image display is ensured, and meanwhile, the simple processing can be ensured.
Optionally, when the sub-pixels of the first display area display the same gray scale with the first refresh rate and the sub-pixels of the second display area display the same gray scale with the second refresh rate, the luminance difference between the sub-pixels of the first display area and the sub-pixels of the second display area is smaller than the threshold.
In this implementation manner, the first refresh rate and the second refresh rate used in the present disclosure may be selected according to the brightness displayed in the same gray scale in the two display regions, so as to ensure that the difference when the pixels display the same gray scale is within the threshold range, thereby ensuring the uniformity of the display.
Optionally, the threshold is less than or equal to 5%.
In this implementation, the threshold value is selected to be equal to or less than 5%, so that uniformity can be maximally guaranteed.
Fig. 9 is a flowchart illustrating a display control method according to an exemplary embodiment. Referring to fig. 9, the method may be performed by the aforementioned driving unit, and the display control method may include:
in step S11, a drive signal is acquired.
Here, the driving signal is generated based on the first refresh rate and the second refresh rate. The first refresh rate and the second refresh rate can be determined in advance before leaving a factory, and can be used only by being acquired from the local place when in work. The mode of determination is that the second display area is controlled to display the monochrome image by adopting the second refresh rate, and the first display area is controlled to display the same monochrome image with the same gray scale by adopting different refresh rates in sequence.
When the number of the sub-pixels in the first display area is less, the number of the sub-pixels in the first display area can be increased by one each time on the basis of the second refresh rate; and when the number of the sub-pixels in the first display area is larger, the value of the second refresh rate can be doubled each time on the basis of the second refresh rate.
And selecting the refresh rate of the second display area as the first refresh rate when the brightness difference between the sub-pixels of the first display area and the sub-pixels of the second display area is smaller than the threshold value.
For example, the rows and columns of the sub-pixels in the first display area are both less than 6, the second refresh rate is 60Hz, and at this time, the display may be performed at different refresh rates in sequence by adding 1 every time from 61Hz, and the first refresh rate is selected from the group consisting of the rows and columns of the sub-pixels in which the luminance difference is less than the threshold.
For example, the rows and columns of the sub-pixels in the first display area are both greater than 6, the second refresh rate is 60Hz, and at this time, the display may be performed at different refresh rates from 120Hz, and 60 is added each time, and the display in which the luminance difference is smaller than the threshold value is selected as the first refresh rate.
When the number of the sub-pixels in the first display area is large, the selected first refresh rate can be 2 times of the second refresh rate, on one hand, the double refresh rate can make up for the problem that the energy consumption of the first display area is too large, and on the other hand, the 2-time refresh rate is adopted for simplest control.
Optionally, acquiring the driving signal comprises:
acquiring image frames to be displayed, wherein the number of the image frames to be displayed in unit time is equal to a second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltage based on the pixel gray-scale value corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display the supplementary frame, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frame; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
In step S12, the sub-pixels of the first display region and the second display region are controlled to operate at the first refresh rate and the second refresh rate, respectively, using the driving signal.
Optionally, the pictures displayed in the first display area are the same during the time when the second display area displays one frame of picture.
In the implementation mode, although the refresh rate of the first display area is increased, the displayed picture is still the same, the content displayed in the first display area and the content displayed in the second display area at any time are ensured to belong to the same picture, and the display integrity of the whole display panel is ensured.
Fig. 10 is a block diagram illustrating a display control apparatus according to an exemplary embodiment. Referring to fig. 10, the display control apparatus may include: an acquisition module 21 and a control module 22.
Wherein, the obtaining module 21 is configured to obtain the driving signal; and the control module 22 is configured to control the sub-pixels of the first display area and the second display area to work according to a first refresh rate and a second refresh rate respectively by using the driving signals.
Optionally, the obtaining module 21 is configured to obtain image frames to be displayed, where the number of image frames to be displayed in a unit time is equal to the second refresh rate; when the sub-pixels in the first display area display the image frame, determining pixel voltage based on the pixel gray-scale value corresponding to the first display area in the image frame; when the sub-pixels in the first display area display the supplement frames, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplement frames; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
At least one embodiment of the present disclosure provides a terminal device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the display control method as previously described.
Fig. 11 is a block diagram of a terminal device 600 according to an exemplary embodiment, where the device 600 may be the display panel or a mobile terminal having the display panel. Referring to fig. 11, the terminal device 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an interface to input/output (I/O) 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operations of the terminal device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operations at the terminal device 600. Examples of such data include instructions for any software program or method operating on the terminal device 600, contact data, phonebook data, messages, pictures, videos, etc. The memory 604 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 608 includes a screen providing an output interface between the terminal device 600 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The audio component 610 is configured to output and/or input audio signals. In some embodiments, audio component 610 includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 614 includes one or more sensors for providing various aspects of status assessment for the terminal device 600. For example, when the smart device is a smart air conditioner, the sensor component 614 may include a humidity sensor, a temperature sensor, and the like.
The communication component 616 is configured to facilitate wireless communication between the terminal device 600 and other devices. In an embodiment of the present disclosure, the communication component 616 may access a wireless network based on a communication standard, such as 2G, 3G, 4G, or 5G, or a combination thereof, so as to implement the physical downlink control signaling detection. In an exemplary embodiment, the communication component 616 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. Optionally, the communication component 616 further includes an NFC module.
In an exemplary embodiment, the terminal device 600 may be implemented by one or more software Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic elements for performing the above-described display control method.
In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 604 including instructions, which may be executed by the processor 620 of the terminal device 600 to perform the above-described display control method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (17)
1. A display panel comprising a first display region and a second display region, the first display region having a transmittance greater than that of the second display region,
and after the display panel reaches a certain use time, controlling the first refresh rate of the first display area to be greater than the second refresh rate of the second display area.
2. The display panel according to claim 1, wherein the signal line of the first display region and the signal line of the second display region are insulated from each other.
3. The display panel according to claim 1, wherein the first display region adopts at least one of the following settings: all the data lines are connected together; all gate lines are connected together.
4. The display panel according to claim 1, wherein each data line and each gate line in the first display region are insulated from each other.
5. The display panel according to any one of claims 1 to 4, wherein the first refresh rate is an integer multiple of the second refresh rate.
6. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 5.
7. The display device according to claim 6, further comprising:
a driving unit configured to acquire a driving signal; and controlling the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signal.
8. The display device according to claim 7, wherein the driving unit is configured to acquire image frames to be displayed, the number of image frames to be displayed per unit time being equal to the second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltages based on pixel gray-scale values corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display a supplementary frame, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frame; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
9. The display device according to claim 8, wherein when the first refresh rate is an integer multiple of the second refresh rate, each image frame is followed by at least one supplemental frame, and each image frame and at least one supplemental frame following the image frame display the same image.
10. The display device according to any one of claims 7 to 9, wherein the driving unit is configured to supply a pixel voltage of the first gray scale of the first color to the first display region to be smaller than a pixel voltage of the first gray scale of the first color to the second display region.
11. The display device according to claim 8, wherein when the first refresh rate is a non-integer multiple of the second refresh rate, at least one supplemental frame is provided after at least two consecutive image frames, and the luminance of each sub-pixel in the first display region corresponding to each supplemental frame is an average of the luminances of each sub-pixel in the first display region corresponding to at least one adjacent image frame of the supplemental frame.
12. The display device according to claim 7, wherein when the sub-pixels of the first display region display the same gray scale with the first refresh rate and the sub-pixels of the second display region display the same gray scale with the second refresh rate, a luminance difference between the sub-pixels of the first display region and the sub-pixels of the second display region is smaller than a threshold value.
13. A display control method applied to the display device according to any one of claims 6 to 12, the method comprising:
acquiring a driving signal;
and controlling the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signal.
14. The method of claim 13, wherein the obtaining the drive signal comprises:
acquiring image frames to be displayed, wherein the number of the image frames to be displayed in unit time is equal to the second refresh rate;
when the sub-pixels in the first display area display the image frame, determining pixel voltages based on pixel gray-scale values corresponding to the first display area in the image frame;
when the sub-pixels in the first display area display a supplementary frame, determining pixel voltage based on pixel gray-scale values corresponding to the first display area in a plurality of image frames adjacent to the supplementary frame; the supplementary frame refers to a frame in which the first display region is displayed more than the second display region.
15. A display control apparatus applied to the display apparatus according to any one of claims 6 to 12, the apparatus comprising:
an acquisition module configured to acquire a driving signal;
the control module is configured to control the sub-pixels of the first display area and the second display area to work according to the first refresh rate and the second refresh rate respectively by adopting the driving signals.
16. A terminal device, characterized in that the terminal device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the display control method of claim 13 or 14.
17. A computer readable storage medium having computer instructions stored thereon, wherein the computer instructions, when executed by a processor, implement the method of claim 13 or 14.
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| CN114333676B (en) * | 2021-12-31 | 2023-12-15 | 武汉天马微电子有限公司 | Display panel driving method, display panel and display device |
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| US20030134628A1 (en) * | 2002-01-15 | 2003-07-17 | Litwin Louis Robert | On a mobile device |
| CN203386459U (en) * | 2013-06-27 | 2014-01-08 | 深圳市明微电子股份有限公司 | Display control system supporting grayscale extension and driving chip |
| CN104977754A (en) * | 2015-05-25 | 2015-10-14 | 京东方科技集团股份有限公司 | Display panel, display device and control method of display device |
| JPWO2017145753A1 (en) * | 2016-02-22 | 2018-08-02 | シャープ株式会社 | Display control apparatus, display control method, and program |
| CN109031768B (en) * | 2018-09-18 | 2021-01-26 | 京东方科技集团股份有限公司 | Liquid crystal display panel, display device and working method |
| CN109410769B (en) * | 2018-12-28 | 2021-03-30 | 厦门天马微电子有限公司 | Transparent display panel, control method thereof and display device |
| CN109658876B (en) * | 2019-02-28 | 2023-04-11 | 京东方科技集团股份有限公司 | Image display processing method and device, display device and storage medium |
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