CN109584835B - Array substrate, driving method of array substrate and display panel - Google Patents

Array substrate, driving method of array substrate and display panel Download PDF

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Publication number
CN109584835B
CN109584835B CN201910086853.4A CN201910086853A CN109584835B CN 109584835 B CN109584835 B CN 109584835B CN 201910086853 A CN201910086853 A CN 201910086853A CN 109584835 B CN109584835 B CN 109584835B
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sub
pixel
white sub
white
array substrate
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CN109584835A (en
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余仁惠
侯清娜
刁凯
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BOE Technology Group Co Ltd
Fuzhou BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Fuzhou BOE Optoelectronics Technology Co Ltd
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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
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract

The invention provides an array substrate, a driving method of the array substrate and a display panel, and belongs to the technical field of display. The array substrate comprises a substrate and a plurality of pixel units positioned on the substrate, wherein each pixel unit comprises a plurality of sub-pixels; and a white sub-pixel is arranged between at least part of two adjacent sub-pixels in each pixel unit, wherein each white sub-pixel is connected with the corresponding grid line and data line, is used for working under the control of the grid line connected with the white sub-pixel, and adjusts the gray scale voltage of the white sub-pixel by adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the sub-pixel.

Description

Array substrate, driving method of array substrate and display panel
Technical Field
The invention belongs to the technical field of display, and particularly relates to an array substrate, a driving method of the array substrate and a display panel.
Background
The brightness of the display panel is mainly determined by the backlight brightness and the transmittance of the display panel itself. It should be noted that, in general, the backlight brightness of the display panel is often fixed, that is, in the prior art, the purpose of brightening the display panel is often achieved by inputting a higher voltage to the display panel to increase the transmittance of the display panel. However, it should be noted that in this case, if the chromaticity of the display panel is adjusted, only the voltage can be reduced, and at this time, the brightness of the display panel is reduced, and the response time of the liquid crystal is also prolonged, thereby reducing the display effect of the display panel.
Disclosure of Invention
The present invention is directed to at least one of the technical problems in the prior art, and provides an array substrate, a driving method of the array substrate, and a display panel with a better display effect.
The technical scheme adopted for solving the technical problem is that the array substrate comprises a substrate and a plurality of pixel units positioned on the substrate, wherein each pixel unit comprises a plurality of sub-pixels; and a white sub-pixel is arranged between at least part of two adjacent sub-pixels in each pixel unit, wherein each white sub-pixel is connected with the corresponding grid line and data line, is used for working under the control of the grid line connected with the white sub-pixel, and adjusts the gray scale voltage of the white sub-pixel by adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
Preferably, one white sub-pixel is disposed between any two adjacent sub-pixels in each pixel unit.
Preferably, each of the pixel units includes: red, green, blue sub-pixels; the white sub-pixel includes: a first white sub-pixel disposed between the red sub-pixel and the green sub-pixel and a second white sub-pixel disposed between the green sub-pixel and the blue sub-pixel in each of the pixel units; wherein,
the first white sub-pixel and the second white sub-pixel which are positioned on the same row are connected with the same grid line; the first white sub-pixels positioned in the same column are connected with the same data line and are marked as a first data line; the second white sub-pixels positioned in the same column are connected with the same data line and are marked as a second data line; wherein all of the first data lines are connected to each other, and all of the second data lines are connected to each other.
Preferably, the array substrate is divided into a plurality of sub-regions; the array substrate further includes: the device comprises a chromaticity acquisition module, an adjustment area determination module and a control module; wherein,
the chrominance acquisition module is configured to acquire a chrominance value of the sub-pixel in each of the sub-regions to obtain a chrominance value of each of the sub-regions;
an adjustment region determining module, configured to determine a sub-region to be subjected to chromaticity adjustment according to the chromaticity value of each sub-region acquired by the chromaticity acquiring module;
and the control module is used for controlling the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment to work and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
Preferably, one white sub-pixel is disposed between every two adjacent sub-pixels in the array substrate.
Preferably, the white sub-pixels in the same row are connected to the same gate line, the white sub-pixels in the same column are connected to the same data line, and all the data lines are connected to each other.
Preferably, the array substrate is divided into a plurality of sub-regions; the array substrate further includes: the device comprises a brightness acquisition module, an adjustment area determination module and a control module; wherein,
the brightness acquisition module is configured to acquire a brightness value of the sub-pixel in each sub-region to obtain a brightness value of each sub-region;
an adjustment region determining module, configured to determine a sub-region to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquiring module;
and the control module is used for controlling the white sub-pixel in the sub-area to be subjected to brightness adjustment to work and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
The technical scheme adopted for solving the technical problem is a driving method of an array substrate, wherein the array substrate comprises a substrate and a plurality of pixel units positioned on the substrate; each pixel unit comprises a plurality of sub-pixels, a white sub-pixel is arranged between at least two adjacent sub-pixels in each pixel unit, and each white sub-pixel is connected with the corresponding grid line and the corresponding data line;
the driving method includes: and adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the sub-pixel when the white sub-pixel works under the control of the grid line connected with the white sub-pixel so as to adjust the gray scale voltage of the white sub-pixel.
Preferably, the array substrate is divided into a plurality of sub-regions; when the white sub-pixel works under the control of the grid line connected with the white sub-pixel, the step of adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the white sub-pixel so as to adjust the gray scale voltage of the white sub-pixel comprises the following steps:
acquiring a chromatic value of the sub-pixel in each sub-area to obtain a chromatic value of each sub-area;
determining a sub-area to be subjected to chromaticity adjustment according to the chromaticity value of each sub-area acquired by the chromaticity acquisition module;
and controlling the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment to work, and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
Preferably, the array substrate is divided into a plurality of sub-regions; when the white sub-pixel works under the control of the grid line connected with the white sub-pixel, the step of adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the white sub-pixel so as to adjust the gray scale voltage of the white sub-pixel comprises the following steps:
acquiring the brightness value of the sub-pixel in each sub-region to obtain the brightness value of each sub-region;
determining a sub-region to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquisition module;
and controlling the white sub-pixel in the sub-area to be subjected to brightness adjustment to work, and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
The technical scheme adopted for solving the technical problem of the invention is a display panel which comprises any one of the array substrates.
Drawings
Fig. 1 is a schematic view of an array substrate according to embodiment 2 of the present invention;
fig. 2 is a schematic diagram of a sub-region to be chroma adjusted according to embodiment 2 of the present invention;
FIG. 3 is a schematic diagram illustrating chromatic values of a red sub-pixel and a green sub-pixel under different gray scales according to embodiment 2 of the present invention;
fig. 4 is a flowchart of a driving method of an array substrate according to embodiment 2 of the present invention;
fig. 5 is a schematic view of an array substrate according to embodiment 3 of the present invention;
fig. 6 is a schematic diagram of a sub-region to be brightness-adjusted according to embodiment 3 of the present invention;
fig. 7 is a flowchart of a driving method of an array substrate according to embodiment 3 of the present invention;
wherein the reference numerals are: r, red sub-pixel; G. a green sub-pixel; B. a blue sub-pixel; w, a white sub-pixel; w1A first white sub-pixel; w2And a second white sub-pixel.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" and similar words are intended to mean that the elements or items listed before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items.
Example 1:
the embodiment provides an array substrate, which comprises a substrate and a plurality of pixel units positioned on the substrate, wherein each pixel unit comprises a plurality of sub-pixels. In particular, in the present embodiment, a white subpixel W is disposed between at least some two adjacent subpixels in each pixel unit, wherein each white subpixel W is connected to its corresponding gate line and data line, and is configured to operate under the control of the gate line connected thereto, and adjust the gray scale voltage of the white subpixel W by adjusting the data voltage written on the data line connected thereto according to the display state of the subpixel.
That is, in the present embodiment, the chromaticity and the brightness of the display panel including the array substrate of the present embodiment can be adjusted by adjusting the gray scale voltage of the white sub-pixel W by adjusting the data voltage written into the white sub-pixel W, so as to avoid the situation that the chromaticity of the display panel is reduced and the corresponding time of the liquid crystal is prolonged by adjusting the data voltage of some sub-pixels (for example, the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B) in the prior art.
Example 2:
the embodiment provides an array substrate, which comprises a substrate and a plurality of pixel units positioned on the substrate, wherein each pixel unit comprises a plurality of sub-pixels. Specifically, a white sub-pixel is disposed between any two adjacent sub-pixels in each pixel unit, wherein each white sub-pixel is connected to the corresponding gate line and data line, and is configured to operate under the control of the gate line connected to the white sub-pixel, and adjust the gray scale voltage of the white sub-pixel by adjusting the data voltage written on the data line connected to the white sub-pixel according to the display state of the sub-pixel, so as to adjust the chromaticity of the display panel including the array substrate of this embodiment.
For the purpose of understanding the present embodiment, the present embodiment includes each pixel unitThe red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B arranged in this order in the pixel row direction will be described as an example. As shown in fig. 1, a white sub-pixel, denoted as a first white sub-pixel W, is disposed between the red sub-pixel R and the green sub-pixel G in each pixel unit1(ii) a A white sub-pixel is arranged between the green sub-pixel G and the blue sub-pixel B in each pixel unit and is marked as a second white sub-pixel W2。
In order to simplify the step of adjusting the chromaticity of the display panel, it is preferable that the first white sub-pixels W in the same row are located as shown in fig. 2 and 31And a second white subpixel W2The first white sub-pixels W connected to the same gate line (not shown in FIG. 2) and located in the same column1A second white sub-pixel W connected to the same data line, denoted as a first data line, and located in the same column2Connecting the same data line, and recording as a second data line; wherein all the first data lines are connected to each other, i.e. all the first data lines are connected together (i.e. line S shown in fig. 2)1) All the second data lines are connected to each other, i.e. all the second data lines are connected together (i.e. line S shown in fig. 2)2). Thus, when the chromaticity of the display panel is adjusted, the IC chip only needs to adjust the data voltage written in the first data line and/or the second data line to adjust the data voltage written in the first white sub-pixel W1And/or a second white sub-pixel W2The gray scale voltage is adjusted, and the adjusting step is simple, convenient to operate and easy to realize.
Preferably, as shown in fig. 1, the array substrate of this embodiment is divided into a plurality of sub-regions, each sub-region includes a plurality of pixel units arranged in an array, and the array substrate includes: the device comprises a chromaticity acquisition module, an adjustment area determination module and a control module. The chrominance acquisition module is used for acquiring chrominance values of the sub-pixels in each sub-area when the display panel displays so as to obtain the chrominance values of each sub-area; the adjustment region determining module is used for determining the sub-regions to be subjected to chromaticity adjustment according to the chromaticity value of each sub-region acquired by the chromaticity acquiring module; control moduleFor controlling the first white sub-pixel W in the sub-area to be colorimetrically adjusted1And/or a second white sub-pixel W2Operates to adjust the first white sub-pixel W in the sub-region to be chromaticity-adjusted by adjusting the data voltage on the data line connected to the white sub-pixel according to the display state of the sub-pixel1And/or a second white sub-pixel W2The gray scale voltage to adjust the chromaticity of the display panel.
Specifically, as shown in fig. 3, at a low gray level (i.e., a gray level is 0 to 50), the chromaticity values of the red sub-pixel R and the green sub-pixel G are linearly changed, and as the gray level increases, the chromaticity values of the red sub-pixel R and the green sub-pixel G also increase. At this time, according to the chromaticity value which is determined by the adjustment region determining module and is required to be displayed by the sub-region to be subjected to chromaticity adjustment, a gray-scale value corresponding to the chromaticity value to be displayed can be obtained. Then, the corresponding relation between different gray-scale values and data voltages stored in the register is set according to Gamma (Gamma), and the data voltage corresponding to the gray-scale value can be obtained. In this way, the first white sub-pixel W is adjusted to the sub-area to be adjusted in chromaticity1And/or a second white sub-pixel W2The data voltage is written into the connected data line, so that the chromaticity of the display panel can be adjusted.
In order to more clearly understand the intention of the present embodiment, the following description specifically describes the driving method of the array substrate provided in the present embodiment.
Wherein the driving method comprises that when the first white sub-pixel W1And/or a second white sub-pixel W2When the display panel is operated under the control of the grid line connected with the display panel, the data voltage written on the data line connected with the display panel is adjusted according to the display state of the sub-pixel so as to adjust the first white sub-pixel W1And/or a second white sub-pixel W2The gray scale voltage of (1).
Specifically, as shown in fig. 4, the driving method includes the following steps:
and S21, acquiring the chroma value of the sub-pixel in each sub-area to obtain the chroma value of each sub-area.
Specifically, when the display panel displays, the chrominance acquisition module is used to acquire the chrominance value of the sub-pixel in each sub-region, so as to obtain the chrominance value of each sub-region.
The chromaticity acquiring module may be a colorimeter, and of course, the chromaticity acquiring module of this embodiment may also be other devices for acquiring chromaticity values, which is not limited herein.
And S22, determining the sub-area to be subjected to chromaticity adjustment according to the chromaticity value of each sub-area acquired by the chromaticity acquisition module.
Specifically, the adjustment region determining module is used to compare the chromaticity value of each sub-region acquired in step S21 with a preset chromaticity value, and if the chromaticity value of a certain sub-region is greater than or less than the preset chromaticity value, it is indicated that a problem exists in a display picture of the sub-region when the sub-region is displayed externally, and at this time, it is determined that the sub-region is the sub-region to be subjected to chromaticity adjustment.
It should be noted that the preset chromaticity value refers to: when the display panel displays normally, the chromatic value of each sub-area. The size of the preset chromaticity value may be set according to actual conditions, and is not limited herein.
And S23, controlling the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment to work, and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
Specifically, after the sub-area to be subjected to the chromaticity adjustment is determined in step S22, a gray-scale value corresponding to the chromaticity value to be displayed is obtained according to the chromaticity value that needs to be displayed by the sub-area. Then, the data voltage corresponding to the gray value is obtained according to the correspondence between the different gray values and the data voltages stored in the Gamma (Gamma) setting register. Finally, the control module is used for controlling the first white sub-pixel W in the sub-area to be subjected to the chromaticity adjustment1And/or a second white sub-pixel W2Work is carried out on the seedThe first and/or second data lines in the region write data voltages obtained by setting a register according to Gamma (Gamma) to adjust the first white subpixel W1And/or a second white sub-pixel W2The gray scale voltage to adjust the chromaticity of the display panel.
Thus, the chromaticity adjustment of the display panel is completed.
In summary, the first white sub-pixel W is disposed between the red sub-pixel R and the green sub-pixel G in each pixel unit of the embodiment1A second white sub-pixel W is arranged between the green sub-pixel G and the blue sub-pixel B2Therefore, by controlling the first white subpixel W in the region where the chromaticity adjustment is to be performed1And/or a second white sub-pixel W2Working by adjusting the first white sub-pixel W connected to the same first data line1And/or adjusting the data voltage written on the same first data line to adjust the first white sub-pixel W in the sub-area1And/or a second white sub-pixel W2The gray scale voltage can adjust the chromaticity of the display panel of the embodiment, so that the situation that the chromaticity of the display panel is reduced and the corresponding time of liquid crystal is prolonged due to the fact that the chromaticity of the display panel is adjusted by directly adjusting the data voltage of at least one of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B on the array substrate in the prior art is avoided.
Example 3:
as shown in fig. 5, the present embodiment provides an array substrate, which includes a substrate and a plurality of pixel units on the substrate, where each pixel unit includes a plurality of sub-pixels. Specifically, a white sub-pixel W is disposed between every two adjacent sub-pixels in the array substrate, wherein each white sub-pixel W is connected to its corresponding gate line and data line, and is configured to operate under the control of the gate line connected thereto, and adjust the gray scale voltage of the white sub-pixel W by adjusting the data voltage written on the data line connected thereto according to the display state of the sub-pixel, so as to adjust the brightness of the display panel including the array substrate of the present embodiment.
For the purpose of understanding the present embodiment, the present embodiment is described by taking an example in which each pixel unit includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B sequentially arranged in a pixel row direction. As shown in fig. 5, a white sub-pixel W is disposed between two adjacent red and green sub-pixels R and G in the array substrate, a white sub-pixel W is disposed between two adjacent blue and red sub-pixels B and R, and a white sub-pixel W is disposed between two adjacent green and blue sub-pixels G and B.
Of course, the arrangement of the white sub-pixels W on the array substrate is not limited to the foregoing arrangement, and may be adjusted according to actual conditions.
In order to simplify the step of adjusting the brightness of the display panel, it is preferable that, as shown in fig. 6, the white sub-pixels W in the same row are connected to the same gate line, the white sub-pixels W in the same column are connected to the same data line, and all the data lines are connected to each other, that is, all the data lines connected to the white pixels are connected together (i.e., the line S shown in fig. 6)3). Thus, when the brightness of the display panel is adjusted, the IC chip only needs to adjust the write data line S3The gray scale voltage of the white sub-pixel W can be adjusted by the written data voltage, and the adjusting step is simple, convenient to operate and easy to realize.
Preferably, in this embodiment, the array substrate is divided into a plurality of sub-regions, and each sub-region includes a plurality of pixel units arranged in an array; the array substrate includes: the device comprises a brightness acquisition module, an adjustment area determination module and a control module. The brightness acquisition module is used for acquiring the brightness value of each sub-area; the adjustment region determining module is used for determining the sub-regions to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquiring module; the control module is used for controlling the white sub-pixel W in the sub-area to be subjected to brightness adjustment to work and adjusting the gray scale voltage of the white sub-pixel W in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the corresponding data line.
Specifically, as shown in fig. 3, at a high gray level (i.e. when the gray level is greater than 50), the chromaticity values of the red sub-pixel R and the green sub-pixel G are not substantially changed, and at this time, the correspondence relationship between the different gray level values and the data voltages stored in the Gamma (Gamma) setting register is known: when the data voltage written on the data line is increased to increase the brightness of the display panel, the chromaticity of the white subpixel W does not change, i.e., when the brightness of the display panel is increased, the chromaticity of the display panel is not affected. In this way, the luminance of the display panel can be adjusted by writing a higher data voltage to the data line connected to the white subpixel W in the sub-area to be luminance-adjusted.
In order to more clearly understand the intention of the present embodiment, the following description specifically describes the driving method of the array substrate provided in the present embodiment.
When the white sub-pixel W works under the control of the grid line connected with the white sub-pixel W, the driving method comprises the step of adjusting the data voltage written on the data line connected with the white sub-pixel W according to the display state of the sub-pixel to adjust the gray scale voltage of the white sub-pixel W.
Specifically, as shown in fig. 7, the driving method includes the steps of:
and S31, acquiring the brightness value of the sub-pixels in each sub-area to obtain the brightness value of each sub-area.
Specifically, when the display panel displays, the luminance value of the sub-pixel in each sub-region is acquired by using the luminance acquisition module, so as to obtain the luminance value of each sub-region.
And S32, determining the sub-region to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquisition module.
Specifically, the adjustment region determining module is used to compare the brightness value of each sub-region obtained in step S31 with a preset brightness value, and if the brightness value of a certain sub-region is greater than or less than the preset brightness value, it is indicated that a problem exists in a display image of the sub-region when the sub-region is displayed externally, and at this time, it is determined that the sub-region is the sub-region to be subjected to brightness adjustment.
The preset brightness value is: and when the display panel normally displays, the brightness value of each sub-area. The magnitude of the preset brightness value may be set according to actual conditions, and is not limited herein.
And S33, controlling the white sub-pixel W in the sub-area to be subjected to brightness adjustment to work, and adjusting the gray scale voltage of the white sub-pixel W in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the data line connected with the white sub-pixel W according to the display state of the sub-pixel.
Specifically, after the sub-region to be brightness adjusted is determined in step S32, the control module controls the white sub-pixel W in the sub-region to be brightness adjusted to operate according to the correspondence between different gray scale values and data voltages stored in the Gamma (Gamma) setting register, and writes different data voltages into the data line connected to the white sub-pixel W to adjust the gray scale voltage of the white sub-pixel W to compensate the brightness of the display panel.
So far, the brightness compensation of the display panel is completed.
Example 4:
this embodiment provides a display panel including the array substrate according to any one of embodiments 1 to 3.
Since the display panel of the embodiment includes the array substrate, the display panel has a better display effect.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (9)

1. An array substrate comprises a substrate and a plurality of pixel units positioned on the substrate, wherein each pixel unit comprises a plurality of sub-pixels; the display panel is characterized in that a white sub-pixel is arranged between at least part of two adjacent sub-pixels in each pixel unit, wherein each white sub-pixel is connected with the corresponding grid line and data line, is used for working under the control of the grid line connected with the white sub-pixel, and adjusts the chromaticity of the display panel by adjusting the data voltage written on the data line connected with the white sub-pixel when the value of the gray scale is less than 50 and adjusts the brightness of the display panel by adjusting the data voltage on the data line connected with the white sub-pixel when the value of the gray scale is greater than 50 according to the display state of the sub-pixel;
the array substrate is divided into a plurality of sub-regions; the array substrate further includes: the device comprises a chromaticity acquisition module, an adjustment area determination module and a control module; wherein,
the chrominance acquisition module is configured to acquire a chrominance value of the sub-pixel in each of the sub-regions to obtain a chrominance value of each of the sub-regions;
an adjustment region determining module, configured to determine a sub-region to be subjected to chromaticity adjustment according to the chromaticity value of each sub-region acquired by the chromaticity acquiring module;
and the control module is used for controlling the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment to work and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
2. The array substrate of claim 1, wherein one of the white sub-pixels is disposed between any two adjacent sub-pixels in each of the pixel units.
3. The array substrate of claim 2, wherein each pixel unit comprises: red, green, blue sub-pixels; the white sub-pixel includes: a first white sub-pixel disposed between the red sub-pixel and the green sub-pixel and a second white sub-pixel disposed between the green sub-pixel and the blue sub-pixel in each of the pixel units; wherein,
the first white sub-pixel and the second white sub-pixel which are positioned on the same row are connected with the same grid line; the first white sub-pixels positioned in the same column are connected with the same data line and are marked as a first data line; the second white sub-pixels positioned in the same column are connected with the same data line and are marked as a second data line; wherein all of the first data lines are connected to each other, and all of the second data lines are connected to each other.
4. The array substrate of claim 1, wherein one of the white sub-pixels is disposed between every two adjacent sub-pixels in the array substrate.
5. The array substrate of claim 4, wherein the white sub-pixels in the same row are connected to the same gate line, the white sub-pixels in the same column are connected to the same data line, and all the data lines are connected to each other.
6. The array substrate of claim 1 or 4, wherein the array substrate is divided into a plurality of sub-regions; the array substrate further includes: the device comprises a brightness acquisition module, an adjustment area determination module and a control module; wherein,
the brightness acquisition module is configured to acquire a brightness value of the sub-pixel in each sub-region to obtain a brightness value of each sub-region;
an adjustment region determining module, configured to determine a sub-region to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquiring module;
and the control module is used for controlling the white sub-pixel in the sub-area to be subjected to brightness adjustment to work and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
7. A driving method of the array substrate according to any one of claims 1 to 6, wherein the array substrate comprises a base, and a plurality of pixel units on the base; each pixel unit comprises a plurality of sub-pixels, a white sub-pixel is arranged between at least two adjacent sub-pixels in each pixel unit, and each white sub-pixel is connected with the corresponding grid line and the corresponding data line;
the driving method includes: when the white sub-pixel works under the control of the grid line connected with the white sub-pixel, according to the display state of the sub-pixel, when the value of the gray scale is less than 50, the data voltage written in the data line connected with the white sub-pixel is adjusted to adjust the chroma of the display panel, and when the value of the gray scale is more than 50, the data voltage on the data line connected with the white sub-pixel is adjusted to adjust the brightness of the display panel;
the array substrate is divided into a plurality of sub-regions; when the white sub-pixel works under the control of the grid line connected with the white sub-pixel, the step of adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the white sub-pixel so as to adjust the gray scale voltage of the white sub-pixel comprises the following steps:
acquiring a chromatic value of the sub-pixel in each sub-area to obtain a chromatic value of each sub-area;
determining a sub-area to be subjected to chromaticity adjustment according to the chromaticity value of each sub-area acquired by the chromaticity acquisition module;
and controlling the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment to work, and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to the chromaticity adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
8. The driving method of the array substrate according to claim 7, wherein the array substrate is divided into a plurality of sub-regions; when the white sub-pixel works under the control of the grid line connected with the white sub-pixel, the step of adjusting the data voltage written on the data line connected with the white sub-pixel according to the display state of the white sub-pixel so as to adjust the gray scale voltage of the white sub-pixel comprises the following steps:
acquiring the brightness value of the sub-pixel in each sub-region to obtain the brightness value of each sub-region;
determining a sub-region to be subjected to brightness adjustment according to the brightness value of each sub-region acquired by the brightness acquisition module;
and controlling the white sub-pixel in the sub-area to be subjected to brightness adjustment to work, and adjusting the gray scale voltage of the white sub-pixel in the sub-area to be subjected to brightness adjustment by adjusting the data voltage on the data line connected with the white sub-pixel according to the display state of the sub-pixel.
9. A display panel comprising the array substrate according to any one of claims 1 to 6.
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