Array substrate and display device

Abstract

The present disclosure provides an array substrate and a display device. The array substrate comprises a substrate and a plurality of sub-pixels on the substrate. The plurality of sub-pixels are arranged in a first direction and a second direction, and the first direction intersects the second direction. The array substrate comprises a plurality of pixel regions, each pixel region comprising different color sub-pixels arranged in the first direction, and the areas of different pixel regions are the same. In the same pixel region, the sizes of the sub-pixel regions of at least two different color sub-pixels in the first direction are different, and the ratio of the sizes of the sub-pixel regions of the at least two different color sub-pixels in the first direction is 1-2, and the sub-pixel region comprises an effective light-emitting region. The array substrate provided by the present disclosure can make the emitted light meet the required white balance without ACC debugging by setting the ratio of the sizes of the sub-pixel regions of different color sub-pixels in the first direction, so that the transmittance of the array substrate applied to the display device can be improved by at least 10%.

Description

Technical Field

[0001] This disclosure relates to an array substrate and a display device. Background Technology

[0002] Currently, LCD displays are widely used in people's lives. Large-screen LCD TVs have increasingly higher requirements for display characteristics such as resolution, white balance, and transmittance. Summary of the Invention

[0003] This disclosure provides an array substrate and a display device.

[0004] The array substrate provided in this embodiment includes: a substrate; and a plurality of sub-pixels located on the substrate and arranged in an array along a first direction and a second direction, wherein the first direction and the second direction intersect. The array substrate includes a plurality of pixel regions, each pixel region including sub-pixels of different colors arranged along the first direction, and the areas of the different pixel regions are the same; within the same pixel region, the sub-pixel regions of at least two different colored sub-pixels have different sizes in the first direction, and the ratio of the sizes of the sub-pixel regions of the at least two different colored sub-pixels in the first direction is 1 to 2, and each sub-pixel region includes an effective light-emitting region.

[0005] For example, according to an embodiment of this disclosure, the array substrate further includes: a plurality of data lines arranged along the first direction; and a plurality of gate lines arranged along the second direction. The plurality of data lines and the plurality of gate lines are intersected to surround the effective light-emitting area of ​​the plurality of sub-pixels.

[0006] For example, according to an embodiment of this disclosure, each sub-pixel includes a pixel electrode and a common electrode stacked together, and in the same pixel region, the pixel electrodes of the at least two different colored sub-pixels have different dimensions in the first direction.

[0007] For example, according to an embodiment of this disclosure, the plurality of data lines are not uniformly distributed in the first direction, and the plurality of gate lines are uniformly distributed in the second direction.

[0008] For example, according to an embodiment of this disclosure, the size ratio of the pixel electrodes of the at least two different color sub-pixels in the first direction is not greater than 2.

[0009] For example, according to an embodiment of this disclosure, in the same pixel region, the size ratio of the sub-pixel regions of the at least two different colored sub-pixels in the second direction is 0.9 to 1.1.

[0010] For example, according to an embodiment of this disclosure, each pixel region includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; within the same pixel region, the sub-pixel region of the second color sub-pixel has the largest size in the first direction.

[0011] For example, according to an embodiment of this disclosure, the pixel electrode of the second color sub-pixel has the largest size in the first direction.

[0012] For example, according to an embodiment of this disclosure, in the same pixel area, the size ratio of the sub-pixel area of ​​the first color sub-pixel to the sub-pixel area of ​​the third color sub-pixel in the first direction is 0.9 to 1.1.

[0013] For example, according to an embodiment of this disclosure, in the same pixel region, the size ratio of the pixel electrode of the first color sub-pixel to the pixel electrode of the third color sub-pixel in the first direction is 0.9 to 1.1.

[0014] For example, according to an embodiment of this disclosure, each sub-pixel further includes a transistor, the first electrode of which is connected to the pixel electrode; the array substrate further includes a common electrode line electrically connected to the common electrode, and on a surface perpendicular to the substrate, the first electrode of the transistor of each sub-pixel overlaps with the common electrode line, wherein the overlap area of ​​the first electrode of the transistor of the second color sub-pixel with the common electrode line is smaller than the overlap area of ​​the first electrode of the transistor of other color sub-pixels with the common electrode line.

[0015] For example, according to an embodiment of this disclosure, in the same pixel area, the ratio of the charging pull voltage δVp of any two different color sub-pixels is 0.9 to 1.1, where δVp = [Cgs / (Cgs+Cst+Clc)]*(Vgh-Vgl), Cgs is the capacitance between the first electrode and the gate of the transistor, Cst is the storage capacitance of the sub-pixel, Clc is the liquid crystal capacitance, Vgh is the potential when the gate line potential rises to a high level, and Vgl is the potential when the gate line potential falls to a low level.

[0016] For example, according to an embodiment of this disclosure, the first portion of the common electrode line that overlaps with the first electrode of the transistor extends along the second direction, and the size of the overlap portion of the first electrode of the transistor of the second color sub-pixel with the first portion in the second direction is smaller than the size of the overlap portion of the first electrode of the transistor of other color sub-pixels with the first portion in the second direction.

[0017] For example, according to an embodiment of this disclosure, the first portion of the common electrode line and the data line are alternately arranged along the first direction, the first electrode of the transistor is arranged on the same layer as the data line, and the first portion is arranged on the same layer as the pixel electrode.

[0018] For example, according to an embodiment of this disclosure, the plurality of sub-pixels are arranged as multi-row, multi-column sub-pixels, with sub-pixels in the same row arranged along the first direction and sub-pixels in the same column arranged along the second direction. Two gate lines are provided between two adjacent rows of sub-pixels, and two columns of sub-pixels are provided between two adjacent data lines. The second part of the common electrode line located between the two columns of sub-pixels is disposed on the same layer as the gate line, and the first part of the common electrode line overlaps with the gate line.

[0019] For example, according to an embodiment of this disclosure, the two gate lines form a gate line pair, and the plurality of gate lines include a plurality of gate line pairs, which are uniformly distributed in the second direction.

[0020] For example, according to an embodiment of this disclosure, each pixel region includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; within the same pixel region, the pixel electrode of the first color sub-pixel has the largest size in the first direction.

[0021] For example, according to an embodiment of this disclosure, in the first direction, the size of the pixel electrode of the second color sub-pixel is larger than the size of the pixel electrode of the third color sub-pixel, and the difference between the pixel electrode of the first color sub-pixel and the pixel electrode of the second color sub-pixel is a first difference, the difference between the pixel electrode of the second color sub-pixel and the pixel electrode of the third color sub-pixel is a second difference, and the ratio of the first difference to the second difference is 0.9 to 1.1.

[0022] For example, according to an embodiment of this disclosure, the plurality of sub-pixels are arranged as multi-row, multi-column sub-pixels, with sub-pixels in the same row arranged along the first direction, and sub-pixels in the same column arranged along the second direction. A gate line is provided between two adjacent rows of sub-pixels, and a data line is provided between two adjacent columns of sub-pixels.

[0023] For example, according to an embodiment of this disclosure, the first color sub-pixel is a red sub-pixel, the second color sub-pixel is a green sub-pixel, and the third color sub-pixel is a blue sub-pixel.

[0024] Another embodiment of this disclosure provides a display device, including any of the above-described array substrates; a counter substrate disposed opposite to the array substrate, the counter substrate including a color filter; a liquid crystal layer located between the array substrate and the counter substrate; and a backlight source located on the side of the array substrate away from the liquid crystal layer. The size ratio of the sub-pixel regions of at least two different color sub-pixels in the pixel region in the first direction is 1 to 2, so that the white light emitted by the display device satisfies a preset white balance coordinate without color temperature correction.

[0025] For example, according to embodiments of this disclosure, the backlight source includes quantum dot materials or fluorescent materials.

[0026] For example, according to an embodiment of this disclosure, the backlight source includes quantum dot material, and the spectrum of the backlight source includes a red light peak, a green light peak, and a blue light peak, wherein the peak value of the red light peak is higher than the peak value of the green light peak.

[0027] For example, according to an embodiment of this disclosure, the ratio of the peak value of the blue light peak to the peak value of the red light peak is 1.8 to 2.8.

[0028] For example, according to an embodiment of this disclosure, the backlight source includes a fluorescent material, and the spectrum of the backlight source includes a red light peak, a green light peak, and a blue light peak. The ratio of the peak value of the blue light peak to the peak value of the red light peak is 0.7 to 0.9, and the ratio of the peak value of the green light peak to the peak value of the red light peak is 0.15 to 0.28. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0030] Figure 1 This is a partial structural schematic diagram of an array substrate provided according to an embodiment of the present disclosure.

[0031] Figure 2 for Figure 1 The diagram shows a partial sub-pixel and signal line in an example.

[0032] Figure 3 for Figure 2 The diagram shows a partial structural schematic of the sub-pixels and signal lines.

[0033] Figure 4 for Figure 1 A schematic diagram of some sub-pixels and signal lines in another example shown.

[0034] Figure 5 for Figure 4 The diagram shows a partial structural schematic of the sub-pixels and signal lines.

[0035] Figure 6 for Figure 2 The spectrum of the backlight used when the array substrate shown is applied to a display device is similar to... Figure 4 The diagram shows a spectral comparison of the backlight used when the array substrate is applied to a display device.

[0036] Figure 7 This is the spectrum of another backlight source.

[0037] Figure 8 This is a comparison chart of the spectra of different color filters.

[0038] Figure 9 This is a partial structural schematic diagram of an array substrate provided according to another example of an embodiment of the present disclosure.

[0039] Figure 10 for Figure 9 The diagram shown is a schematic of the subpixel before the subpixel area size is adjusted.

[0040] Figure 11 for Figure 9 The diagram shows the subpixel after the subpixel area size has been adjusted.

[0041] Figure 12 This is a partial structural schematic diagram of a display device provided according to another embodiment of the present disclosure. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0043] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Features such as “parallel,” “perpendicular,” and “identical” used in embodiments of this disclosure include features in the strict sense of “parallel,” “perpendicular,” and “identical,” as well as cases where “substantially parallel,” “substantially perpendicular,” and “substantially identical” include a certain degree of error, taking into account measurement and errors associated with the measurement of a particular quantity (e.g., limitations of the measurement system), indicating a range of acceptable deviations for a particular value as determined by one of ordinary skill in the art. For example, “substantially” can mean within one or more standard deviations, or within 10% or 5% of said value. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component means that the component may be one or more, or can be understood as at least one. “At least one” means one or more, and “more” means at least two. The term "same-layer arrangement" as used in this disclosure refers to a structure formed by two (or more) structures through the same deposition process and patterned through the same patterning process, wherein their materials may be the same or different. The term "integrated arrangement structure" as used in this disclosure refers to a structure formed by two (or more) structures through the same deposition process and patterned through the same patterning process, wherein their materials may be the same or different.

[0044] In their research, the inventors of this application discovered that as television (TV) products demand increasingly higher resolutions, the transmittance of these products faces significant challenges. Taking an 8K resolution, 65-inch screen display device as an example, considering the placement of isolation pillars (PS) around one or two color sub-pixels, the aperture ratios of the red, green, and blue sub-pixels differ considerably. This results in a significant transmittance (Tr) loss after Accurate Color Capture (ACC) adjustments to the display panel. In the pixel structure design of the aforementioned 8K resolution product, the sub-pixel areas (i.e., pixels, dots) of the red, green, and blue sub-pixels are the same size in the row direction. If the original aperture ratio of each sub-pixel can be defined as the ratio of the effective light-emitting area to the area of ​​the sub-pixel area, the original aperture ratio settings of each sub-pixel cannot perfectly match the characteristics of the color filter and backlight. The display panel needs ACC adjustments to conform to the preset white balance coordinates, such as specific values ​​(x = 0.28, y = 0.29), at which point the transmittance loss is significant. In addition, due to limitations in specifications such as color gamut, pixel structures with the same size in the row direction in the aforementioned sub-pixel areas cannot use certain high-transmittance color films, which limits the improvement of the transmittance of the display panel.

[0045] To ensure consistent color reproduction across different grayscale levels, ACC (Adjustable Color Temperature) adjustments are necessary to achieve a more uniform color distribution. ACC corrects the color temperature as required, resulting in a more natural image. Typically, after the panel's gamma curve is adjusted, ACC adjustments are used to fine-tune the color coordinates and gamma, achieving the desired color temperature and gamma curve by adjusting the RGB (red, green, blue) ratios at different grayscale levels.

[0046] This disclosure provides an array substrate and a display device. The array substrate includes a substrate and a plurality of sub-pixels located on the substrate. The plurality of sub-pixels are arranged in an array along a first direction and a second direction, the first direction intersecting the second direction. The array substrate includes a plurality of pixel regions, each pixel region including sub-pixels of different colors arranged along the first direction, the different pixel regions having the same area; within the same pixel region, the sub-pixel regions of at least two different colored sub-pixels have different sizes in the first direction, and the size ratio of the sub-pixel regions of at least two different colored sub-pixels in the first direction is 1 to 2, the sub-pixel region including an effective light-emitting region. By setting the size ratio of the sub-pixel regions of different colored sub-pixels in the first direction, the array substrate provided by this disclosure enables the display device including the array substrate to achieve the required white balance of emitted light without ACC adjustment, thereby increasing the transmittance by at least 10% when the array substrate is applied to a display device.

[0047] The array substrate and display device provided in the embodiments of this disclosure are described below with reference to the accompanying drawings.

[0048] Figure 1 This is a partial structural schematic diagram of an array substrate provided according to an embodiment of the present disclosure. Figure 2 for Figure 1 The diagram shows a partial sub-pixel and signal line in an example. Figure 3 for Figure 2 The diagram shows a partial structural schematic of the sub-pixels and signal lines.

[0049] like Figures 1 to 3 As shown, the array substrate includes a substrate 10 and a plurality of sub-pixels 100 located on the substrate 10. The plurality of sub-pixels 100 are arranged in an array along a first direction and a second direction, the first direction intersecting the second direction. For example, the first direction can be... Figure 1 The X direction is shown, and the second direction can be... Figure 1 The Y-direction shown can be interchanged with the first and second directions. For example, the angle between the first and second directions can be 80 to 100 degrees. Alternatively, the angle can be 85 to 95 degrees. For example, the first and second directions can be perpendicular. For example, the first direction can be a row direction, and the second direction can be a column direction.

[0050] For example, the area where multiple sub-pixels 100 are located can be a display area in the array substrate used to display images, and the array substrate also includes a peripheral area surrounding the display area.

[0051] like Figures 1 to 3 As shown, the array substrate includes multiple pixel regions 20, each pixel region 20 including different color sub-pixels 100 arranged along a first direction, and the areas of different pixel regions 20 are the same. For example, the multiple pixel regions 20 can be arranged in an array along the first direction and a second direction. For example, different pixel regions 20 include the same number of sub-pixels 100, such as three different color sub-pixels 100. For example, the area where each sub-pixel 100 is located can be a sub-pixel region 1001, i.e., a pixel dot. Each pixel region 20 includes multiple sub-pixel regions 1001, and the area of ​​each pixel region 20 can be the sum of the areas of its multiple sub-pixel regions 1000. The area of ​​the pixel region 20 can be set to a certain value. For example, the total pixel aperture ratio of the pixel region 20 can be the ratio of the sum of the effective light-emitting areas of the sub-pixels 100 to the area of ​​the pixel region 20, and the pixel aperture ratio of each sub-pixel 100 can be the ratio of the area of ​​the effective light-emitting area 101 of each sub-pixel 100 to the area of ​​the pixel region 20. The definition of pixel aperture ratio here is different from the definition of the original aperture ratio mentioned above. The aforementioned effective light-emitting region 101 can be Figure 2The area shown by the black box contains a black matrix 1002 outside the effective light-emitting area 101. The sub-pixel area 1001 includes the effective light-emitting area 101 and a non-light-emitting area surrounding the effective light-emitting area 101, which is directly opposite the black matrix. The aforementioned effective light-emitting area refers to the opening area of ​​the sub-pixel, such that light can pass through the opening area of ​​the sub-pixel.

[0052] like Figures 1 to 3 As shown, in the same pixel area 20, the sub-pixel areas 1001 of at least two different colored sub-pixels 100 have different sizes in the first direction, and the ratio of the sizes of the sub-pixel areas 1001 of at least two different colored sub-pixels 100 in the first direction is 1 to 2. For example, the ratio of the sizes of the sub-pixel areas 1001 of at least two different colored sub-pixels 100 in the first direction is 1.01 to 1.99, or 1.1 to 1.7, or 1.2 to 1.9, or 1.3 to 1.5, or 1.4 to 1.8, etc.

[0053] For example, such as Figures 1 to 3 As shown, in the same pixel area 20, the effective light-emitting areas 101 of at least two different colored sub-pixels 100 have different sizes in the first direction, and the ratio of the sizes of the effective light-emitting areas 101 of at least two different colored sub-pixels 100 in the first direction is 1 to 2. For example, the ratio of the sizes of the effective light-emitting areas 101 of at least two different colored sub-pixels 100 in the first direction is 1.01 to 1.99, or 1.1 to 1.7, or 1.2 to 1.9, or 1.3 to 1.5, or 1.4 to 1.8, etc.

[0054] For example, if the size of the subpixel area of ​​different colors is the same in the first direction, the pixel aperture ratio setting of each color subpixel cannot perfectly match the characteristics of the color filter and the backlight, resulting in the white point coordinates (x, y) not conforming to the preset white balance coordinates (x = 0.28, y = 0.29). Therefore, it is necessary to perform ACC adjustment on the display panel to adjust the above white point coordinates so that they meet the preset white balance coordinates (Spec). This process will lead to a decrease in the transmittance of the display panel. Simulations show that the changes in the white point coordinates (x, y) are related to the pixel aperture ratios of the red, green, and blue sub-pixels: (1) If the pixel aperture ratio of the blue sub-pixel decreases, the white point coordinates (x, y) both increase; if the pixel aperture ratio of the blue sub-pixel increases, the white point coordinates (x, y) both decrease; (2) If the pixel aperture ratio of the green sub-pixel decreases, it mainly causes y to decrease, while x will also decrease slightly; if the pixel aperture ratio of the green sub-pixel increases, it mainly affects y to increase, while x will also increase slightly; (3) If the pixel aperture ratio of the red sub-pixel decreases, it mainly affects x to decrease, while y will also decrease slightly; if the pixel aperture ratio of the red sub-pixel increases, it mainly affects x to increase, while y will also increase slightly. Following this principle, while maintaining a constant total pixel aperture ratio and a constant length for different sub-pixel regions (e.g., the size of a sub-pixel region in the column direction), the width of different sub-pixel regions is varied by changing the width of these regions (e.g., the size of a sub-pixel region in the row direction). This allows for a sub-pixel region width differentiation design, ensuring that the ratio of different sub-pixel region widths is between 1 and 2. For example, based on the characteristics of the backlight and color filter, the pixel aperture ratios of the red, green, and blue sub-pixels can be redistributed to perfectly match any color filter and backlight scheme. Without ACC tuning, the white point coordinates can be adjusted to the Spec value, which is beneficial for maximizing transmittance, for example, by 10%.

[0055] Compared to cases where the subpixel areas of different colors have the same size in the first direction, this disclosure sets the subpixel areas of different colors to have different sizes in the first direction, and sets them between 1 and 2. This allows the array substrate to achieve the required white balance for the emitted light without ACC adjustment, thereby increasing the transmittance by at least 10% when the array substrate is used in a display device. This array substrate can effectively solve the problem of significant transmittance loss in 8K resolution television products after ACC adjustment of the panel.

[0056] In some examples, such as Figures 1 to 3 As shown, the array substrate also includes a plurality of data lines 210 arranged along a first direction and a plurality of gate lines 220 arranged along a second direction. The plurality of data lines 210 and the plurality of gate lines 220 are intersected to surround the effective light-emitting area 101 of the plurality of sub-pixels 100.

[0057] In some examples, such as Figures 1 to 3 As shown, multiple sub-pixels 100 are arranged in multiple rows and columns of sub-pixels 100. Sub-pixels 100 in the same row are arranged along a first direction, and sub-pixels 100 in the same column are arranged along a second direction. Two gate lines 220 are provided between two adjacent rows of sub-pixels 100, and two columns of sub-pixels 100 are provided between two adjacent data lines 210.

[0058] In some examples, such as Figures 1 to 3 As shown, two gate lines 220 form a gate line pair 222, and multiple gate lines 220 include multiple gate line pairs 222.

[0059] In some examples, such as Figures 1 to 3 As shown, each sub-pixel 100 includes a pixel electrode 102 and a common electrode 103 stacked together. For example, one of the pixel electrode 102 and the common electrode 103 can be a plate electrode, and the other can include a slit electrode, such as including multiple strip electrodes.

[0060] In some examples, such as Figures 1 to 3 As shown, the array substrate also includes a common electrode line 230 electrically connected to the common electrode 103. For example, the array substrate includes multiple common electrode lines 230, which are alternately arranged with multiple data lines 210 along a first direction.

[0061] For example, such as Figures 1 to 3 As shown, the sub-pixel area of ​​each sub-pixel 100 can be the area surrounded by the center line of the common electrode line 230, the center line of the data line 210, and the center line of the gate line pair 222.

[0062] The above description uses a dual-gate structure as an example, but is not limited to this. For single-gate structures (such as...), the same applies. Figure 9 As shown in the figure, the sub-pixel area of ​​each of the above sub-pixels can be the area surrounded by the center line of the data line and the center line of the gate line.

[0063] The aforementioned data lines, common electrode lines, and gate lines are called signal lines. When the signal line is a straight line, the center line is the center line of the signal line. When the signal line is a bent line, the center line can be the line that passes through the midpoint of the line connecting the two edges of the bent line that are furthest apart, and these two edges extend along the overall extension direction of the bent line.

[0064] In some examples, such as Figures 1 to 3As shown, multiple data lines 210 are non-uniformly distributed in a first direction, and multiple gate line pairs 222 are uniformly distributed in a second direction. For example, multiple common electrode lines 230 are non-uniformly distributed in the first direction. By setting the positional relationship between the data lines, common electrode lines, and gate line pairs, the size of the sub-pixel region of each pixel region can be adjusted.

[0065] In some examples, such as Figures 1 to 3 As shown, in the same pixel region 20, the size ratio of the sub-pixel regions 1001 of at least two different colored sub-pixels 100 in the second direction is 0.9 to 1.1. For example, the sizes of the sub-pixel regions 1001 of different colored sub-pixels 100 in the second direction can be equal.

[0066] For example, the size and resolution of the display screen determine that the size of each pixel area 20 in the first direction and the size in the second direction are both constant. Since only one sub-pixel 100 is set in the second direction and multiple sub-pixels 100 are set in the first direction, the size of the sub-pixel area of ​​the sub-pixel 100 in the second direction remains unchanged. By adjusting the size of different sub-pixel areas in the first direction, the white balance of the emitted light can be achieved without ACC adjustment, thereby improving the transmittance of the array substrate when it is applied to a display device.

[0067] In some examples, such as Figures 1 to 3 As shown, in the same pixel region 20, the pixel electrodes 102 of at least two different color sub-pixels 100 have different sizes in the first direction to accommodate the different sizes of different sub-pixel regions in the first direction.

[0068] In some examples, such as Figures 1 to 3 As shown, in the same pixel region 20, the size ratio of the pixel electrodes 102 of at least two different color sub-pixels 100 in the first direction is not greater than 2. For example, the size ratio of the pixel electrodes 102 of at least two different color sub-pixels 100 in the first direction can be 1.01 to 1.99, or 1.1 to 1.5, or 1.2 to 1.9, or 1.3 to 1.7, or 1.4 to 1.8, etc. For example, the size ratio of the pixel electrodes 102 of different color sub-pixels 100 in the first direction can be the same as or different from the size ratio of the sub-pixel region 1001 in the first direction where the different color sub-pixels 100 are located. If they are different, the ratio of the difference between the two to one of them is not greater than 10%.

[0069] In some examples, such as Figures 1 to 3As shown, each pixel region 20 includes a first color sub-pixel 110, a second color sub-pixel 120, and a third color sub-pixel 130; within the same pixel region 20, the sub-pixel region 1001 of the second color sub-pixel 120 has the largest size in the first direction. For example, the effective light-emitting region 101 of the second color sub-pixel 120 has the largest size in the first direction.

[0070] The second color subpixel can be the subpixel that has the greatest impact on the transmittance of the array substrate. By setting the area of ​​the subpixel region of the second color subpixel to be larger than the area of ​​the subpixel region of other color subpixels, it is beneficial to improve the transmittance of the array substrate.

[0071] For example, such as Figures 1 to 3 As shown, the second color sub-pixel 120 has the largest pixel aperture ratio.

[0072] In some examples, such as Figures 1 to 3 As shown, the pixel electrode 102 of the second color sub-pixel 120 has the largest size in the first direction.

[0073] In contrast to the case where the size (e.g., width) of the subpixel area of ​​each color subpixel is the same in the first direction, the size of the pixel area in the first direction of the array substrate provided in this disclosure remains unchanged. By setting the width of the subpixel area of ​​the second color subpixel to be larger, while setting the width of the subpixel areas of the first color subpixel and the third color subpixel to be smaller, it is possible to achieve the required white balance of the emitted light without ACC adjustment, thereby improving the transmittance of the array substrate when it is applied to a display device.

[0074] In some examples, such as Figures 1 to 3 As shown, in the same pixel area 20, the size ratio of the sub-pixel area 1001 of the first color sub-pixel 110 and the sub-pixel area 1001 of the third color sub-pixel 130 in the first direction is 0.9 to 1.1. For example, the sizes of the sub-pixel area 1001 of the first color sub-pixel 110 and the sub-pixel area 1001 of the third color sub-pixel 130 in the first direction can be the same, which is beneficial for facilitating the adjustment and compensation of the charging voltage in the subsequent charging process.

[0075] For example, such as Figure 2 As shown, the size ratio of the sub-pixel area 1001 of the second color sub-pixel 120 to the sub-pixel area 1001 of the first color sub-pixel 110 in the first direction can be 1.13.

[0076] In some examples, such as Figures 1 to 3As shown, in the same pixel region 20, the size ratio of the pixel electrode 102 of the first color sub-pixel 110 and the pixel electrode 102 of the third color sub-pixel 130 in the first direction is 0.9 to 1.1. For example, the pixel electrode 102 of the first color sub-pixel 110 and the pixel electrode 102 of the third color sub-pixel 130 may have the same size in the first direction.

[0077] For example, such as Figures 1 to 3 As shown, in the same pixel area 20, the ratio of the size of the sub-pixel area of ​​the first color sub-pixel 110 to the size of the effective light-emitting area of ​​the third color sub-pixel 130 in the first direction is 0.9 to 1.1. For example, in the same pixel area 20, the sizes of the sub-pixel area of ​​the first color sub-pixel 110 and the effective light-emitting area of ​​the third color sub-pixel 130 in the first direction are the same.

[0078] In some examples, such as Figures 1 to 3 As shown, the first color sub-pixel 110 is a red sub-pixel, the second color sub-pixel 120 is a green sub-pixel, and the third color sub-pixel 130 is a blue sub-pixel. Of course, this embodiment is not limited to this; the colors of the first and third color sub-pixels can be interchanged. This embodiment illustrately uses a green sub-pixel for the second color, but it is not limited to this. The second color sub-pixel can also be any other sub-pixel that has the greatest impact on the transmittance of the array substrate, or that consumes the most power, or that is most sensitive to human vision, etc., requiring a larger aperture ratio.

[0079] For example, such as Figures 1 to 3 As shown, the size of the subpixel area 1001 of the red subpixel (R) and the blue subpixel (B) in the first direction (the size marked by the black arrow in the figure) can both be 59.45 micrometers, and the size of the subpixel area 1001 of the green subpixel (G) in the first direction (the size marked by the black arrow in the figure) can be 67.09 micrometers.

[0080] Figure 3 When the sub-pixel areas of each color sub-pixel on the array substrate shown have the same size (e.g., width) in the first direction, the pixel aperture ratios of the red, green, and blue sub-pixels are 13.86%, 13.86%, and 13.86%, respectively. The transmittance of the array substrate before and after ACC tuning is 3.31% and 3.18%, respectively, a decrease of 4%. Figure 3The proposed solution resets the pixel aperture ratios of different color subpixels within the same pixel area, resulting in pixel aperture ratios of 13.13%, 15.26%, and 13.17% for the red, green, and blue subpixels, respectively. This perfectly matches the characteristics of the color filter and backlight, and meets the preset white point balance coordinates without ACC adjustment. At this point, the transmittance is approximately 3.50%, which is 10.1% higher than the transmittance after ACC adjustment.

[0081] The color filter and backlight remained unchanged before and after the pixel aperture ratio reset. For example, if the color filter uses... Figure 8 The red light spectrum corresponding to 03R, the green light spectrum corresponding to G6800, and the blue light spectrum corresponding to 100B are shown below. The backlight uses a quantum dot backlight, and the spectrum of this quantum dot backlight is as follows: Figure 6 The first spectrum is shown.

[0082] In some examples, such as Figures 1 to 3 As shown, each sub-pixel 100 also includes a transistor 140, the first electrode 141 of which is connected to the pixel electrode 102. For example, the transistor 140 includes a second electrode 142 and a control electrode 143. The second electrode 142 of the transistor 140 is connected to the data line 210, and the control electrode 143 of the transistor 140 is connected to the gate line 220.

[0083] In some examples, such as Figures 1 to 3 As shown, on a surface perpendicular to the substrate 10, the first electrode 141 of the transistor 140 of each sub-pixel 100 overlaps with the common electrode line 230. The overlap area of ​​the first electrode 141 of the transistor 140 of the second color sub-pixel 120 with the common electrode line 230 is smaller than the overlap area of ​​the first electrode 141 of the transistor 140 with the common electrode line 230 of other color sub-pixels. For example, the other color sub-pixels can be red sub-pixels and blue sub-pixels. For example, the overlap area of ​​the first electrode 141 of the transistor 140 of the first color sub-pixel 110 with the common electrode line 230 is equal to the overlap area of ​​the first electrode 141 of the transistor 140 of the third color sub-pixel 130 with the common electrode line 230.

[0084] For example, in the case where the sub-pixel regions of each sub-pixel are the same size in the first direction, the array substrate provided in this disclosure increases the overlap area between the transistor first pole and the common electrode line in the red and blue sub-pixels to achieve that the overlap area of ​​the green sub-pixel is smaller than the overlap area of ​​the other color sub-pixels.

[0085] For example, the ratio of the overlapping area of ​​the transistor in the red sub-pixel to the overlapping area of ​​the green sub-pixel is 2 to 2.5.

[0086] For example, the charging pull voltage δVp of each sub-pixel is δVp = [Cgs / (Cgs+Cst+Clc)]*(Vgh-Vgl), where Cgs is the capacitance between the first electrode (e.g., the source) and the gate of the transistor, Cst is the storage capacitance of the sub-pixel, Clc is the liquid crystal capacitance, Vgh is the potential at which the gate line potential rises to a high level, and Vgl is the potential at which the gate line potential falls to a low level. The storage capacitance refers to the capacitance between the pixel electrode and the common electrode. The lateral electric field formed between the pixel electrode and the common electrode passes through the liquid crystal to form the aforementioned liquid crystal capacitance.

[0087] The aforementioned charging pull voltage refers to the following: at the beginning of time period T1, the gate line potential rises to Vgh, the transistor turns on, and the positive voltage data Vp transmitted on the data line charges the liquid crystal capacitor and the storage capacitor; at the end of time period T1, the gate line potential drops to a low level Vgl, and at the instant the transistor turns off, the positive voltage data Vp drops by δVp. δVp is related to the values ​​of the three capacitors mentioned above. The value of δVp cannot be too large, and the difference in δVp between different color sub-pixels cannot be too large.

[0088] When the size of the subpixel area of ​​different colors is set differently in the first direction, the storage capacitance of different colors of subpixels will be different, which will lead to different charging pull voltages of different colors of subpixels, which may easily cause screen flickering risk. Compensation design for Cgs and Cst is required.

[0089] By setting the overlap area of ​​the first electrode of the transistor and the common electrode line in the second color sub-pixel with a larger sub-pixel area to be smaller than the overlap area of ​​the first electrode of the transistor and the common electrode line in other color sub-pixels, it is beneficial to increase the storage capacitance of other color sub-pixels and reduce the charging pull-up voltage of other color sub-pixels. When the layout space allows, it can minimize the value of δVp and make the charging pull-up voltage of different color sub-pixels basically consistent, thus avoiding the risk of screen flickering.

[0090] In some examples, such as Figures 1 to 3 As shown, within the same pixel area 20, the ratio of the charging pull voltage δVp of any two different color sub-pixels 100 is 0.9 to 1.1. For example, the charging pull voltage δVp of any two different color sub-pixels 100 is the same.

[0091] For example, before compensation, the charging pull voltage δVp of the red sub-pixel is 2.58V, the green sub-pixel is 1.83V, and the blue sub-pixel is 2.58V. After compensation, the charging pull voltage δVp of the red sub-pixel is 1.83V, the green sub-pixel is 1.83V, and the blue sub-pixel is 1.83V. By lowering the charging pull voltage δVp of the red and blue sub-pixels to match that of the green sub-pixel, the charging pull voltage δVp of each sub-pixel can be made consistent to avoid the risk of screen flicker, while minimizing the charging pull voltage and reducing the impact of the gate voltage switching on the sub-pixels. For example, the difference in charging pull voltage before and after compensation is approximately 29%.

[0092] Adjusting the size of subpixel regions of different colors in the first direction can easily lead to inconsistent charging pull-up voltages among different subpixels, causing screen flickering. Although this inconsistency can be mitigated by adjusting the overlap area between the transistor's first electrode and the common electrode line, considering layout space limitations, adjusting the overlap area to adjust the charging pull-up voltage difference needs to be kept within a certain proportion, such as within 35%. Otherwise, it will be difficult to compensate for the inconsistent charging pull-up voltages of different color subpixels. Therefore, when adjusting the size ratio of subpixel regions of different colors in the first direction, it is also necessary to ensure that the difference in charging pull-up voltage before and after compensation is kept within a certain proportion.

[0093] In some examples, such as Figures 1 to 3 As shown, the first portion of the common electrode line 230 that overlaps with the first electrode 141 of the transistor 140 extends along the second direction, and the second portion of the common electrode line 230 located between two columns of sub-pixels 100 is disposed on the same layer as the gate line 220. The first portion of the common electrode line 230 overlaps with the gate line 220. For example, the first portion of the common electrode line 230 can be disposed on the same layer as the pixel electrode 102.

[0094] In some examples, such as Figures 1 to 3 As shown, the first part of the common electrode line 230 and the data line 210 are alternately arranged along the first direction, the first electrode 141 of the transistor 140 is arranged on the same layer as the data line 210, and the first part of the common electrode line 230 is arranged on the same layer as the pixel electrode 102.

[0095] Interference between the common electrode line, data line, transistor first electrode, and gate line is prevented by configuring the stacking relationship of the common electrode line, data line, transistor first electrode, and gate line.

[0096] In some examples, such as Figures 1 to 3As shown, the overlap in the second direction between the first electrode 141 of the transistor 140 of the second color sub-pixel 120 and the first portion of the common electrode line 230 is smaller in the second direction than the overlap in the second direction between the first electrode 141 of the transistor 140 of other color sub-pixels and the first portion of the common electrode line 230. By setting the size in the second direction of the overlap in the first electrode of the transistors of different sub-pixels with the common electrode line, the overlap area between the two can be adjusted.

[0097] Figure 4 for Figure 1 A schematic diagram of some sub-pixels and signal lines in another example shown. Figure 5 for Figure 4 The diagram shows a partial structural schematic of the sub-pixels and signal lines. Figure 6 for Figure 2 The spectrum of the backlight used when the array substrate shown is applied to a display device is similar to... Figure 4 The diagram shows a spectral comparison of the backlight used when the array substrate is applied to a display device. Figure 7 This is the spectrum of another backlight source. Figure 8 This is a comparison chart of the spectra of different color filters.

[0098] Figure 6 The spectrum shown can be the spectrum of a quantum dot (QD) backlight. Figure 7 The spectrum shown can be the spectrum of a fluorescent backlight.

[0099] For example, the backlight may include a light-emitting chip that emits light of a first color, and the quantum dot material or fluorescent material is excited by the first color light to emit light of other colors. For example, the backlight may include multiple quantum dot materials, the light-emitting chip emits blue light, and different quantum dot materials are excited by the blue light to emit red and green light to form white light.

[0100] Figure 4 The array substrate shown in the example is... Figure 2 The difference in the array substrates shown lies in the different dimensions of the sub-pixel regions of each color sub-pixel in the first direction, for example, Figure 4 The size difference of the sub-pixel regions of different colors in the array substrate shown is greater than 1 in the first direction. Figure 2 The array substrate shown exhibits size differences in the subpixel regions of different colors in the first direction.

[0101] For example, such as Figures 1 to 5 As shown, the size of pixel region 20 in the first direction can be a certain value, such as approximately 186 micrometers. For example, as... Figure 4As shown, the size of the subpixel area of ​​the red subpixel (R) and the blue subpixel (B) in the first direction can both be 50.65 micrometers, and the size of the subpixel area of ​​the green subpixel (G) in the first direction can be 84.7 micrometers.

[0102] For example, Figure 2 and Figure 4 The array substrates shown can all be used in display devices with 65-inch display screens.

[0103] and Figure 2 Compared to the array substrate shown, Figure 4 In the array substrate shown, when the size of the pixel area 20 in the first direction is fixed, the size of the sub-pixel area of ​​the green sub-pixel in the first direction is increased, while the size of the sub-pixel areas of the blue and red sub-pixels in the first direction is decreased.

[0104] For example, such as Figure 4 and Figure 5 As shown, the size ratio of the subpixel area of ​​the second color subpixel 120 to the subpixel area of ​​the first color subpixel 110 in the first direction can be 1.67.

[0105] and Figure 2 The array substrates shown are similar. Figure 4 and Figure 5 The way the sub-pixel area size is set in the array substrate shown can also lead to differences in the storage capacitance of sub-pixels of different colors, which in turn leads to different charging pull voltages for different sub-pixels, which can easily cause screen flickering. Therefore, compensation design for Cgs and Cst is required.

[0106] For example, such as Figure 4 and Figure 5 As shown, the overlap area between the first electrode 141 of the transistor 140 of the second color sub-pixel 120 and the common electrode line 230 is smaller than the overlap area between the first electrode 141 of the transistor 140 and the common electrode line 230 of other color sub-pixels. For example, the other color sub-pixels can be red sub-pixels and blue sub-pixels. For example, the overlap area between the first electrode 141 of the transistor 140 of the first color sub-pixel 110 and the common electrode line 230 is equal to the overlap area between the first electrode 141 of the transistor 140 of the third color sub-pixel 130 and the common electrode line 230.

[0107] By setting the overlap area of ​​the first electrode of the transistor and the common electrode line in the second color sub-pixel with a larger size in the first direction to be smaller than the overlap area of ​​the first electrode of the transistor and the common electrode line in other color sub-pixels, it is beneficial to increase the storage capacitance of other color sub-pixels and reduce the charging pull voltage, so that the charging pull voltage of different color sub-pixels is basically consistent, avoiding the risk of screen flickering.

[0108] For example, before compensation, the charging pull voltage δVp of the red sub-pixel is 3.829V, the charging pull voltage δVp of the green sub-pixel is 2.48V, and the charging pull voltage δVp of the blue sub-pixel is 3.829V. After compensation, the charging pull voltage δVp of the red sub-pixel is 2.829V, the charging pull voltage δVp of the green sub-pixel is 2.829V, and the charging pull voltage δVp of the blue sub-pixel is 2.829V. By lowering the charging pull voltage δVp of the red and blue sub-pixels to 2.829V and raising the charging pull voltage δVp of the green sub-pixel to 2.829V, the charging pull voltage δVp of each sub-pixel can be made consistent to avoid the risk of screen flickering, while minimizing the charging pull voltage. For example, the difference in charging pull voltage between the red and blue sub-pixels before and after compensation is approximately 26%, and the difference in charging pull voltage of the green sub-pixel is approximately 14%.

[0109] Adjusting the size of subpixel regions of different colors in the first direction can easily lead to inconsistent charging pull-up voltages among different subpixels, causing screen flickering. Although this inconsistency can be mitigated by adjusting the overlap area between the transistor's first electrode and the common electrode line, considering layout space limitations, adjusting the overlap area to adjust the charging pull-up voltage difference needs to be kept within a certain proportion, such as within 35%. Otherwise, it will be difficult to compensate for the inconsistent charging pull-up voltages of different color subpixels. Therefore, when adjusting the size ratio of subpixel regions of different colors in the first direction, it is also necessary to ensure that the difference in charging pull-up voltage before and after compensation is kept within a certain proportion.

[0110] For example, such as Figure 3 The portion of the first electrode 141 of the transistor 140 of the green sub-pixel 120 in the array substrate shown overlaps with the common electrode line 230 in the second direction, and its dimension is a first width. Figure 5 The portion of the first electrode 141 of the transistor 140 of the green sub-pixel 120 in the array substrate overlaps with the common electrode line 230 in the second direction, and the dimension of the second width is the second width, while the first width is greater than the second width. Figure 3 In the array substrate shown, the portion of the first electrode 141 of the transistor 140 of the blue sub-pixel 130 that overlaps with the common electrode line 230 has a third width in the second direction. Figure 5 The portion of the first electrode 141 of the transistor 140 of the blue sub-pixel 130 in the array substrate overlaps with the common electrode line 230 in the second direction, and its dimension in the second direction is the fourth width, while the third width is smaller than the fourth width.

[0111] Figure 5When the sub-pixel areas of each color sub-pixel on the array substrate are the same in the first direction (e.g., width), the pixel aperture ratios of the red sub-pixel, green sub-pixel, and blue sub-pixel are 13.86%, 13.86%, and 13.86%, respectively. The transmittance of the array substrate before and after ACC adjustment is 3.31% and 3.18%, respectively, a decrease of 4%.

[0112] use Figure 5 The provided scheme resets the pixel aperture ratios of different color sub-pixels within the same pixel region, resulting in pixel aperture ratios of 10.78%, 20.00%, and 10.78% for the red, green, and blue sub-pixels, respectively. The pixel aperture ratios of these color sub-pixels are matched. Figure 6 The second spectrum of the backlight shown and Figure 8 The spectrum of the color filter shown is as follows, if the color filter uses... Figure 8 The red light spectrum corresponding to 03R, the green light spectrum corresponding to 46G, and the blue light spectrum corresponding to 100B are shown.

[0113] For example, Figure 4 The backlight source corresponding to the array substrate shown is... Figure 6 The second spectrum shown is relative to Figure 2 The backlight corresponding to the array substrate shown uses a first spectrum adjustment to modify the spectral intensity and peak position of red, green, and blue light. For example, as... Figure 6 The second spectrum shown includes red, green, and blue light peaks, with the red peak being higher than the green peak. The peak values ​​of these peaks are... Figure 6 The spectral intensities are shown. For example, in the first and second spectra, the spectral intensities of the blue light peaks are comparable, but the blue light peak in the second spectrum is shifted a certain distance towards longer wavelengths relative to the blue light peak in the first spectrum. For example, the spectral intensity of the green light peak in the second spectrum is less than that in the first spectrum, and the green light peak in the second spectrum is shifted a certain distance towards shorter wavelengths relative to the green light peak in the first spectrum. For example, the spectral intensity of the red light peak in the second spectrum is greater than that in the first spectrum, and the red light peak in the second spectrum is shifted a certain distance towards shorter wavelengths relative to the red light peak in the first spectrum. For example, the ratio of the peak value of the blue light peak to the peak value of the red light peak is 1.8 to 2.8. For example, the ratio of the peak value of the blue light peak to the peak value of the red light peak is 2 to 2.6. For example, the ratio of the peak value of the blue light peak to the peak value of the red light peak is 2.3 to 2.5.

[0114] For example, Figure 4 The color filter corresponding to the array substrate shown is Figure 2 The color filter corresponding to the array substrate shown adjusts the spectral intensity and peak position of green light. For example, as... Figure 8 As shown, Figure 4 The spectral intensity of green light corresponding to the color filter of the array substrate shown is greater than Figure 2 The spectral intensity of green light from the color filter corresponding to the array substrate shown. Figure 4 The peak of green light of the color filter corresponding to the array substrate shown is relative to Figure 2 The peak value of the green light of the color filter corresponding to the array substrate shown is shifted a certain distance in the long-wavelength direction.

[0115] By adjusting the backlight spectrum and color filter spectrum as described above, the pixel aperture ratio, color filter, and backlight scheme can be perfectly matched. This achieves the preset white point balance coordinates without the need for ACC (Adjustment Control), with a transmittance of approximately 4.49%. This is significantly better than schemes where different sub-pixels have the same pixel aperture ratio and require ACC adjustment. Figure 4 The array substrate shown is combined Figure 6 The second spectral characteristics of the backlight shown and Figure 8 The transmittance can be increased by about 41% after the color filter, which includes the green light spectrum corresponding to 46G, is shown.

[0116] Therefore, under the premise of meeting other specifications such as color gamut, by combining the adjusted backlight and the adjusted color filter, the size difference of the effective light-emitting area of ​​different color sub-pixels in the array substrate in the first direction can be further increased, and the transmittance can be increased by more than 30%.

[0117] Figure 7 This is the spectrum of another backlight source. Figure 7 The spectrum shown can be the spectrum of a phosphor backlight. For example, a phosphor backlight may include potassium fluorosilicate (KSF). KSF phosphor is a red phosphor. Figure 7 The fourth spectrum shown is an adjusted spectrum based on the third spectrum to suit the pixel aperture ratio of this application. The fourth spectrum mainly adjusts the spectral intensity and peak position of blue and green light, but does not adjust the spectrum of red light.

[0118] based on Figure 5 Given that the pixel aperture ratios of the red, green, and blue sub-pixels in the array substrate are 10.78%, 20.00%, and 10.78%, respectively, the backlight spectrum can be adjusted, for example, to... Figure 7 The fourth spectrum is shown; simultaneously, the spectrum of the color filter was adjusted accordingly, and this color filter uses... Figure 8 The red light spectrum corresponding to 03R, the green light spectrum corresponding to GBA01, and the blue light spectrum corresponding to 100B are shown.

[0119] For example, such as Figure 7As shown, the fourth spectrum includes a red peak, a green peak, and a blue peak. The ratio of the peak value of the blue peak to the peak value of the red peak is 0.7–0.9, and the ratio of the peak value of the green peak to the peak value of the red peak is 0.15–0.28. For example, the spectral intensity of the blue peak in the fourth spectrum is less than that of the blue peak in the third spectrum, and the blue peak in the fourth spectrum is shifted a certain distance in the longer wavelength direction relative to the blue peak in the third spectrum. Similarly, the spectral intensity of the green peak in the fourth spectrum is less than that of the green peak in the third spectrum, and the green peak in the fourth spectrum is shifted a certain distance in the longer wavelength direction relative to the green peak in the third spectrum.

[0120] For example, the fourth spectrum includes a red light peak, a green light peak, and a blue light peak, wherein the ratio of the peak value of the blue light peak to the peak value of the red light peak is 0.75 to 0.85, and the ratio of the peak value of the green light peak to the peak value of the red light peak is 0.18 to 0.25. Alternatively, the fourth spectrum may include a red light peak, a green light peak, and a blue light peak, wherein the ratio of the peak value of the blue light peak to the peak value of the red light peak is 0.78 to 0.8, and the ratio of the peak value of the green light peak to the peak value of the red light peak is 0.2 to 0.23.

[0121] By adjusting the pixel aperture ratio, the spectrum of the backlight, and the spectrum of the color filter, the pixel aperture ratio, color filter, and backlight scheme can be perfectly matched, and the white point specification can be met without ACC, thereby improving the transmittance. For example, if the transmittance is about 4.14%, the transmittance can be increased by about 30%.

[0122] Figure 9 This is a partial structural schematic diagram of an array substrate provided according to another example of an embodiment of the present disclosure. Figure 10 for Figure 9 The diagram shown is a schematic of the subpixel before the subpixel area size is adjusted. Figure 11 for Figure 9 The diagram shows the subpixel after the subpixel area size has been adjusted.

[0123] Figure 9 The array substrate shown and Figure 1 The difference in the array substrate shown is that Figure 9 The array substrate shown adopts a single-gate design.

[0124] In some examples, such as Figures 9 to 11 As shown, each pixel region 20 includes a first color sub-pixel 110, a second color sub-pixel 120, and a third color sub-pixel 130; in the same pixel region 20, the pixel electrode 102 of the first color sub-pixel 110 has the largest size in the first direction.

[0125] In some examples, such as Figures 9 to 11As shown, in the first direction, the size of the pixel electrode 102 of the second color sub-pixel 120 is larger than the size of the pixel electrode 102 of the third color sub-pixel 130, and the difference between the pixel electrode 102 of the first color sub-pixel 110 and the pixel electrode 102 of the second color sub-pixel 120 is a first difference value, and the difference between the pixel electrode 102 of the second color sub-pixel 120 and the pixel electrode 102 of the third color sub-pixel 130 is a second difference value. The ratio of the first difference value to the second difference value is 0.9 to 1.1. For example, the first difference value and the second difference value are the same.

[0126] In some examples, such as Figures 9 to 11 As shown, multiple data lines 210 are non-uniformly distributed in the first direction, and multiple gate lines 220 are uniformly distributed in the second direction.

[0127] For example, such as Figure 10 As shown, before adjusting the size of the subpixel region of each color subpixel in the first direction, the size of the subpixel region of each color subpixel in the first direction (e.g.) Figure 10 The dimensions marked by the black double arrows shown are all the same, such as 62 micrometers. Figure 10 The pixel aperture ratios of the red sub-pixel 110, green sub-pixel 120, and blue sub-pixel in the array substrate shown are 11.97%, 16.53%, and 14.51%, respectively. Figure 10 The array substrate shown is matched Figure 6 The first spectrum of the backlight shown and Figure 8 After the color filter (including the red light spectrum corresponding to 03R, the green light spectrum corresponding to G6800, and the blue light spectrum corresponding to 100B) is shown, the emitted white light will not conform to the preset white point balance coordinates if ACC adjustment is not performed. Therefore, ACC adjustment is required. After ACC adjustment, the transmittance is 3.74% and 3.30% respectively.

[0128] For example, such as Figure 11 As shown, after adjusting the size of the subpixel area of ​​each color subpixel in the first direction, the sizes of the subpixel areas of red subpixel 110, green subpixel 120, and blue subpixel 130 in the first direction (marked by the black double arrows in the figure) are 68 micrometers, 60 micrometers, and 58 micrometers, respectively. The pixel aperture ratios of red subpixel 110, green subpixel 120, and blue subpixel 130 are 13.20%, 15.48%, and 13.60%, respectively. Figure 11 The array substrate shown can be perfectly matched. Figure 6 The first spectrum of the backlight shown and Figure 8The color filters shown (including the red spectrum corresponding to 03R, the green spectrum corresponding to G6800, and the blue spectrum corresponding to 100B) can produce emitted white light that matches the preset white point balance coordinates without ACC adjustment. At this point, the transmittance is 3.61%, relative to... Figure 10 The proposed solution shows a 9.4% improvement.

[0129] For example, Figure 11 The array substrate shown can employ the same as described above. Figure 3 and Figure 5 Similar designs, such as compensating for capacitor Cst, can achieve consistent charging voltage pull for different color subpixels.

[0130] For example, such as Figure 11 The array substrate shown can also achieve further improvement in transmittance by matching it with the backlight and color filter that have other spectra.

[0131] Figure 12 This is a partial structural schematic diagram of a display device according to another embodiment of the present disclosure. Figure 12 As shown, the display device includes an array substrate 010, a counter substrate 020, a liquid crystal layer 030, and a backlight 040. The counter substrate 020 is disposed opposite to the array substrate 010 and includes a color filter 021; the liquid crystal layer 030 is located between the array substrate 010 and the counter substrate 020; the backlight 040 is located on the side of the array substrate 010 away from the liquid crystal layer 030. The ratio of the size of the effective light-emitting areas of at least two different color sub-pixels in the pixel area in the first direction is 1 to 2, so that the white light emitted by the display device satisfies the preset white balance coordinates without color temperature correction.

[0132] The array substrate included in the display device can be any of the array substrates described above. The backlight included in the display device can be an array substrate having the above-described... Figures 6 to 7 The backlight source exhibiting the shown spectrum, such as a quantum dot backlight or a fluorescent backlight. The color filter included in the display device can employ a backlight with the aforementioned... Figure 8 The color filter of the spectrum.

[0133] The display device provided in this disclosure can improve the transmittance of the display device by at least 10%, such as more than 30%, while satisfying the white balance by adjusting the spectrum of the color filter, the spectrum of the backlight, and the size of the sub-pixel area of ​​the sub-pixel in the first direction.

[0134] The following points need to be explained:

[0135] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0136] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0137] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. An array substrate, comprising: Substrate; Multiple sub-pixels are located on the substrate and arranged in an array along a first direction and a second direction, wherein the first direction intersects the second direction; The array substrate includes multiple pixel regions, each pixel region including different color sub-pixels arranged along the first direction, and the different pixel regions have the same area; In the same pixel region, the sub-pixel regions of at least two different colored sub-pixels have different sizes in the first direction, and the ratio of the sizes of the sub-pixel regions of the at least two different colored sub-pixels in the first direction is 1 to 2, and the sub-pixel region includes an effective light-emitting region; The array substrate further includes: Multiple data lines are arranged along the first direction; and Multiple grid lines are arranged along the second direction. The multiple data lines and the multiple gate lines are arranged to intersect and surround the effective light-emitting area of ​​the multiple sub-pixels. Each sub-pixel includes a pixel electrode and a common electrode stacked together. In the same pixel area, the pixel electrodes of at least two different colored sub-pixels have different sizes in the first direction. Each pixel region includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; within the same pixel region, the sub-pixel region of the second color sub-pixel has the largest size in the first direction; Each sub-pixel also includes a transistor, the first electrode of which is connected to the pixel electrode; The array substrate further includes a common electrode line electrically connected to the common electrode. On the substrate perpendicular to the substrate, the first electrode of the transistor of each sub-pixel overlaps with the common electrode line. The overlap area between the first electrode of the transistor of the second color sub-pixel and the common electrode line is smaller than the overlap area between the first electrode of the transistor of the other color sub-pixels and the common electrode line.

2. The array substrate according to claim 1, wherein, The multiple data lines are not uniformly distributed in the first direction, while the multiple gate lines are uniformly distributed in the second direction.

3. The array substrate according to claim 2, wherein, The size ratio of the pixel electrodes of the at least two different colored sub-pixels in the first direction is no greater than 2.

4. The array substrate according to claim 1, wherein, In the same pixel region, the size ratio of the sub-pixel regions of the at least two different colored sub-pixels in the second direction is 0.9 to 1.

1.

5. The array substrate according to claim 1, wherein, The pixel electrode of the second color sub-pixel has the largest size in the first direction.

6. The array substrate according to claim 1, wherein, In the same pixel area, the ratio of the size of the sub-pixel area of ​​the first color sub-pixel to the size of the sub-pixel area of ​​the third color sub-pixel in the first direction is 0.9 to 1.

1.

7. The array substrate according to claim 6, wherein, In the same pixel region, the size ratio of the pixel electrode of the first color sub-pixel to the pixel electrode of the third color sub-pixel in the first direction is 0.9 to 1.

1.

8. The array substrate according to claim 1, wherein, Within the same pixel region, the ratio of the charging pull voltage δVp of any two sub-pixels of different colors is 0.9~1.1, where δVp=[Cgs / (Cgs+Cst+Clc)] (Vgh-Vgl), Cgs is the capacitance between the first electrode and the gate of the transistor, Cst is the storage capacitance of the sub-pixel, Clc is the liquid crystal capacitor, Vgh is the gate line potential rising to a high level, and Vgl is the gate line potential falling to a low level.

9. The array substrate according to claim 1, wherein, The first portion of the common electrode line that overlaps with the first electrode of the transistor extends along the second direction, and the size of the overlap portion of the first electrode of the transistor of the second color sub-pixel with the first portion in the second direction is smaller than the size of the overlap portion of the first electrode of the transistor of other color sub-pixels with the first portion in the second direction.

10. The array substrate according to claim 9, wherein, The first portion of the common electrode line and the data line are alternately arranged along the first direction, the first electrode of the transistor is arranged on the same layer as the data line, and the first portion is arranged on the same layer as the pixel electrode.

11. The array substrate according to claim 9, wherein, The multiple sub-pixels are arranged in multiple rows and columns. Sub-pixels in the same row are arranged along the first direction, and sub-pixels in the same column are arranged along the second direction. Two gate lines are provided between two adjacent rows of sub-pixels, and two columns of sub-pixels are provided between two adjacent data lines. The second portion of the common electrode line located between the two columns of sub-pixels is disposed on the same layer as the gate line, and the first portion of the common electrode line overlaps with the gate line.

12. The array substrate according to claim 11, wherein, The two gate lines form a gate line pair, and the multiple gate lines include multiple gate line pairs, which are evenly distributed in the second direction.

13. The array substrate according to claim 1, wherein, Each pixel region includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; within the same pixel region, the pixel electrode of the first color sub-pixel has the largest size in the first direction.

14. The array substrate according to claim 13, wherein, In the first direction, the size of the pixel electrode of the second color sub-pixel is larger than the size of the pixel electrode of the third color sub-pixel, and the difference between the pixel electrode of the first color sub-pixel and the pixel electrode of the second color sub-pixel is a first difference, the difference between the pixel electrode of the second color sub-pixel and the pixel electrode of the third color sub-pixel is a second difference, and the ratio of the first difference to the second difference is 0.9 to 1.

1.

15. The array substrate according to claim 13, wherein, The multiple sub-pixels are arranged in multiple rows and columns. Sub-pixels in the same row are arranged along the first direction, and sub-pixels in the same column are arranged along the second direction. A gate line is provided between two adjacent rows of sub-pixels, and a data line is provided between two adjacent columns of sub-pixels.

16. The array substrate according to claim 1, wherein, The first color sub-pixel is a red sub-pixel, the second color sub-pixel is a green sub-pixel, and the third color sub-pixel is a blue sub-pixel.

17. A display device, comprising: The array substrate according to any one of claims 1-16; A counter substrate is disposed opposite to the array substrate, and the counter substrate includes a color filter; A liquid crystal layer is located between the array substrate and the opposing substrate; The backlight is located on the side of the array substrate away from the liquid crystal layer. Wherein, the ratio of the size of the sub-pixel regions of at least two different colored sub-pixels in the pixel region in the first direction is 1 to 2 so that the white light emitted by the display device satisfies the preset white balance coordinates without color temperature correction.

18. The display device according to claim 17, wherein, The backlight source includes quantum dot materials or fluorescent materials.

19. The display device according to claim 18, wherein, The backlight source includes quantum dot material, and the spectrum of the backlight source includes a red light peak, a green light peak, and a blue light peak, with the peak value of the red light peak being higher than that of the green light peak.

20. The display device according to claim 19, wherein, The ratio of the peak value of the blue light peak to the peak value of the red light peak is 1.8 to 2.

8.

21. The display device according to claim 18, wherein, The backlight source includes a fluorescent material, and the spectrum of the backlight source includes a red light peak, a green light peak, and a blue light peak. The ratio of the peak value of the blue light peak to the peak value of the red light peak is 0.7 to 0.9, and the ratio of the peak value of the green light peak to the peak value of the red light peak is 0.15 to 0.28.

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