Pixel structure, display panel and display device

Abstract

The invention discloses a pixel structure, a display panel and a display device, and relates to the technical field of display, the pixel structure comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel; the red sub-pixel is provided with a first main pixel region and a first sub-pixel region; each green sub-pixel is provided with a second main pixel region and a second sub-pixel region; the ratio of the area of the second main pixel region to the area of the second sub-pixel region is a second area ratio; the blue sub-pixel is provided with a third main pixel region and a third sub-pixel region; the ratio of the area of the third main pixel region to the area of the third sub-pixel region is a third area ratio, and the third area ratio is smaller than the second area ratio. According to the scheme, the area ratio of the blue sub-pixel with the minimum contribution to the brightness is set to be smaller than the area ratio of the green sub-pixel with the maximum contribution to the brightness, so that the visual angle characteristic of the sub-pixels under the low gray scale can be optimized, and the suppression of the color cast of the key picture is realized; and meanwhile, the aperture ratio loss caused by the area enlargement of the sub-pixel region can be controlled to the minimum limit.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a pixel structure, display panel, and display device. Background Technology

[0002] With the continuous development of display technology, users have increasingly higher requirements for the picture quality of display devices; especially at different viewing angles, they expect to obtain images with accurate colors and stable brightness. In response, wide viewing angle technology has emerged, which aims to reduce visual bias when multiple people view the same screen from different angles, ensuring that the display panel can present good picture quality at different viewing angles.

[0003] Among numerous display performance evaluation standards, the viewing angle testing standard developed by the China Electronics Standardization Institute (CESI) has become an important basis for measuring the viewing angle performance of display products due to its authority and objectivity. The CESI standard comprehensively evaluates the wide viewing angle display performance of display panels by combining color shift data from multiple specific color images.

[0004] While existing wide-viewing-angle technologies have improved display deviation issues at large viewing angles to some extent, under the stringent CESI standard, their wide-viewing-angle display performance, especially color shift, still falls short of fully meeting the demands of high-quality displays. Color shift at large viewing angles leads to color distortion, which directly affects image realism and reduces the user's viewing experience, especially when displaying content requiring high color accuracy. Summary of the Invention

[0005] The main purpose of this application is to propose a pixel structure that aims to solve the technical problem that existing display technologies are unable to meet the CESI standard in terms of color deviation performance.

[0006] To achieve the above objectives, the pixel structure proposed in this application includes: The red sub-pixel has a first main pixel area and a first pixel area; The green sub-pixel has a second main pixel area and a second pixel area; the ratio of the area of ​​the second main pixel area to the area of ​​the second pixel area is defined as the second area ratio; The blue sub-pixel has a third main pixel area and a third pixel area; the ratio of the area of ​​the third main pixel area to the area of ​​the third pixel area is defined as the third area ratio, which is less than the second area ratio.

[0007] In one embodiment, the ratio of the area of ​​the first main pixel region to the area of ​​the first pixel region is defined as a first area ratio, and the first area ratio is greater than the third area ratio.

[0008] In one embodiment, the first area ratio is equal to the second area ratio.

[0009] In one embodiment, the ratio of the area of ​​the first main pixel region to the area of ​​the first pixel region is defined as a first area ratio, and the first area ratio is less than the second area ratio.

[0010] In one embodiment, the first area ratio is equal to the third area ratio.

[0011] In one embodiment, the second area ratio is 1 / 2, and the third area ratio is 1 / 2.5.

[0012] This application also proposes a display panel, the display panel including a plurality of pixel structures as described above, the plurality of pixel structures being arranged in an array along a first direction, wherein the red sub-pixel, the green sub-pixel, and the blue sub-pixel in each pixel structure are arranged sequentially along the first direction.

[0013] In one embodiment, the display panel further includes gate lines; the gate lines pass through the plurality of pixel structures along the first direction to divide each pixel structure into a first region and a second region; The first main pixel area, the second main pixel area, and the third main pixel area are all located within the first area, and the first pixel area, the second pixel area, and the third pixel area are all located within the second area.

[0014] In one embodiment, the sides of the first main pixel region facing away from the gate line, the sides of the second main pixel region facing away from the gate line, and the sides of the third main pixel region facing away from the gate line are aligned with each other; the sides of the first pixel region facing away from the gate line, the sides of the second pixel region facing away from the gate line, and the sides of the third pixel region facing away from the gate line are aligned with each other. The gate line has a lateral offset portion at least at a position directly opposite the blue sub-pixel, and the lateral offset portion protrudes toward the first region.

[0015] This application also proposes a display device, which includes a display panel as described above.

[0016] The pixel structure proposed in this application differentiates the second area ratio of green sub-pixels and the third area ratio of blue sub-pixels. For the green sub-pixel, which contributes the most to brightness, its second area ratio can remain unchanged to ensure aperture ratio. For the blue sub-pixel, which contributes the least to brightness, its third area ratio is set to be less than the second area ratio of the green sub-pixel. This allows for a targeted increase in the area ratio of the third pixel area of ​​the blue sub-pixel relative to its own aperture area. By increasing the area of ​​the third pixel area, the viewing angle characteristics of the sub-pixel at low grayscale are optimized, and color shift in key images is effectively suppressed. At the same time, the aperture ratio loss caused by the increase in the area of ​​the sub-pixel area is kept to a minimum. Thus, while maintaining high transmittance and ensuring display brightness, the color shift problem at large viewing angles is improved. This allows the display panel to better meet the CESI standard in terms of color shift performance, reduces color distortion, and improves the user's viewing experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the image from the CESI detection perspective; Figure 2 This is a schematic diagram of the first embodiment of the pixel structure provided in this application; Figure 3 This is a schematic diagram of the second embodiment of the pixel structure provided in this application; Figure 4 A schematic diagram of the test data for the pixel structure provided in this application.

[0019] Explanation of icon numbers: 1. Red sub-pixel; 11. First main pixel area; 12. First pixel area; 2. Green sub-pixel; 21. Second main pixel area; 22. Secondary pixel area; 3. Blue sub-pixel; 31. Third main pixel area; 32. Third pixel area; 4. Gate line; 41. Lateral offset section; 5. First area; 6. Second area.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0024] With the continuous development of display technology, users have increasingly higher requirements for the picture quality of display devices; especially at different viewing angles, they expect to obtain images with accurate colors and stable brightness. In response, wide viewing angle technology has emerged, which aims to reduce visual bias when multiple people view the same screen from different angles, ensuring that the display panel can present good picture quality at different viewing angles.

[0025] Among numerous display performance evaluation standards, the viewing angle testing standard developed by the China Electronics Standardization Institute (CESI) has become an important basis for measuring the viewing angle performance of display products due to its authority and objectivity. For example... Figure 1 As shown, the CESI standard comprehensively evaluates the wide-viewing-angle display performance of a display panel by combining color shift data from multiple specific color images.

[0026] While existing wide-viewing-angle technologies have improved display deviation issues at large viewing angles to some extent, under the stringent CESI standard, their wide-viewing-angle display performance, especially color shift, still falls short of fully meeting the demands of high-quality displays. Color shift at large viewing angles leads to color distortion, which directly affects image realism and reduces the user's viewing experience, especially when displaying content requiring high color accuracy.

[0027] In the field of display technology, to improve color shift at wide viewing angles, various pixel structures employing multi-domain designs have been proposed in the prior art. For example, Chinese patent application CN114815343A discloses a display panel and its control method. Referring to the description and drawings, the array substrate in this prior art typically includes multiple repeating pixel units. Each pixel unit includes multiple sub-pixels (such as red sub-pixels, green sub-pixels, and blue sub-pixels), and each sub-pixel is further divided into a main pixel area and an auxiliary pixel area. The main pixel area and the auxiliary pixel area are driven by independent main pixel electrodes and auxiliary pixel electrodes, respectively. Multiple data lines extending along the column direction and multiple scan lines extending along the row direction are provided on the array substrate. The area of ​​each sub-pixel is defined by the intersection of the data lines and the scan lines. In addition, multiple shared lines arranged parallel to the data lines are also provided on the array substrate.

[0028] Each sub-pixel is electrically connected to a pixel driving circuit; this driving circuit typically includes a first transistor, a second transistor, and a third transistor. The gates of the first, second, and third transistors are all electrically connected to the same scan line. The source and drain of the first transistor are electrically connected to a data line and the main pixel electrode, respectively, allowing data signals to be written to the main pixel electrode through the first transistor. The source and drain of the second transistor are electrically connected to the same data line and the auxiliary pixel electrode, respectively, allowing the same data signal to be written to the auxiliary pixel electrode through the second transistor. The source and drain of the third transistor are electrically connected to a shared line and the auxiliary pixel electrode, respectively. By controlling the voltage signal on the shared line and utilizing the third transistor, the final voltage on the auxiliary pixel electrode can be adjusted, thereby creating a voltage difference between the main pixel area and the auxiliary pixel area, driving the liquid crystal molecules to produce different deflections to optimize the display effect at different viewing angles.

[0029] The aforementioned existing technical solutions improve color shift by adding shared lines and additional transistors through voltage regulation. However, this circuit regulation method increases wiring complexity and the number of transistors, raising manufacturing costs and design difficulty. Furthermore, its regulation efficiency and accuracy are limited by the characteristics of the driving circuit itself. In particular, for color shift problems dominated by specific color sub-pixels in certain low-grayscale images (such as CESI standard test images), relying solely on voltage signal fine-tuning may not achieve an optimal balance between cost, transmittance, and color shift compensation effect.

[0030] To address the aforementioned issues, the researchers of this application, through research and analysis, discovered that in multi-screen tests conducted according to the CESI standard, the contribution of each test screen to the overall color cast result differed significantly. Specifically, based on the analysis of a large amount of product test data, the researchers identified the red screen with RGB values ​​of (175, 54, 60) and the blue screen with RGB values ​​of (56, 61, 150) as the most critical factors leading to the higher final average color cast value. For example... Figure 1 As shown, the color cast values ​​for the red and blue images are as high as 0.07 to 0.09, while the color cast values ​​for the other seven colors are generally in the range of 0.01 to 0.04. In other words, the color cast degree of the red and blue images is 2 to 5 times that of the other colors. Therefore, to substantially improve the overall color cast performance of the display panel under CESI testing, the core and breakthrough lies in specifically improving the color cast performance of the two key images mentioned above.

[0031] Researchers further analyzed the color composition of these two key images. The red image was primarily composed of a mixture of mid-to-high grayscale red (R=175) and low grayscale green (G=54) and low grayscale blue (B=60). Similarly, the blue image was primarily composed of mid-to-high grayscale blue (B=150) and low grayscale red (R=56) and low grayscale green (G=61). This common characteristic indicates that the viewing angle representation at low grayscale levels is the key factor limiting the color accuracy of these specific images at wide viewing angles.

[0032] Based on this, the researchers further focused on how to optimize the viewing angle characteristics at low grayscale levels. Through simulation and experimental studies, they discovered that in a pixel structure using a main pixel area (Main area) and a sub-pixel area (Sub area), the area ratio between the main pixel area and the sub-pixel area is a key design parameter affecting the gamma value at low grayscale and wide viewing angles. Specifically, increasing the relative area of ​​the sub-pixel area (i.e., reducing the area ratio of the main pixel area to the sub-pixel area) can make the gamma curve at low grayscale and wide viewing angles closer to the ideal frontal gamma curve, thereby improving the viewing angle performance at low grayscale levels. However, simply increasing the area of ​​the sub-pixel area will directly reduce the pixel aperture ratio, causing a decrease in the transmittance of the display panel, resulting in a darker overall screen brightness and adversely affecting the display effect.

[0033] Therefore, the core challenge facing the R&D team lies in how to address the significant color shift issue that occurs at wide viewing angles in the aforementioned key images (i.e., red images with RGB values ​​of (175, 54, 60) and blue images with RGB values ​​of (56, 61, 150)) while minimizing transmittance loss. To this end, the R&D team thoroughly considered the characteristics of human vision and the differences in the contributions of the three primary colors (red (R), green (G), and blue (B)) to overall brightness, finding that the contribution relationship of the three to brightness is green (G) > red (R) > blue (B), with a specific brightness ratio of approximately green (G): red (R): blue (B) = 7:2:1. Based on this key understanding, the researchers believe that this difference in contribution to brightness can be fully utilized to implement an asymmetrical pixel design: that is, to prioritize optimizing the viewing angle characteristics (i.e., color shift performance at a wide viewing angle) of the blue sub-pixel, which has the least impact on overall brightness (contributing about 10% to brightness) but has a significant impact on the aforementioned key color shift, while the green sub-pixel, which contributes the most to brightness (contributing about 70% to brightness), maintains its original area ratio design. In this way, the color shift problem can be improved while keeping the loss of overall display brightness to a minimum.

[0034] Based on the above analysis results, this application proposes a pixel structure that aims to improve the color shift problem at large viewing angles by differentiating the area ratio of the main and secondary pixel areas of each color sub-pixel while maintaining high transmittance and ensuring display brightness.

[0035] Please see Figure 2 and Figure 3 The pixel structure provided in one embodiment of this application includes: Red sub-pixel 1 has a first main pixel area 11 and a first pixel area 12; Green sub-pixel 2 has a second main pixel area 21 and a second pixel area 22; the ratio of the area of ​​the second main pixel area 21 to the area of ​​the second pixel area 22 is defined as the second area ratio; Blue sub-pixel 3 has a third main pixel area 31 and a third pixel area 32; the ratio of the area of ​​the third main pixel area 31 to the area of ​​the third pixel area 32 is defined as the third area ratio, which is less than the second area ratio.

[0036] In the pixel structure of this embodiment, each sub-pixel's opening area (i.e., the effective light-transmitting or light-emitting area) comprises two spatially separated parts, which are defined as the main pixel area and the secondary pixel area, respectively. Specifically, the red sub-pixel 1 comprises a first main pixel area 11 and a second primary pixel area 12; the green sub-pixel 2 comprises a second main pixel area 21 and a second primary pixel area 22; and the blue sub-pixel 3 comprises a third main pixel area 31 and a third primary pixel area 32. Both the main pixel area and the secondary pixel area can be driven independently to present different brightness levels.

[0037] To quantify the characteristics of the internal structure of a subpixel, this application defines the area ratio as a parameter, which is the ratio of the area of ​​the main pixel region to the area of ​​the secondary pixel region of a subpixel. Based on this definition, the first area ratio of red subpixel 1 refers to the ratio of the area of ​​the first main pixel region 11 to the area of ​​the first pixel region 12; the second area ratio of green subpixel 2 refers to the ratio of the area of ​​the second main pixel region 21 to the area of ​​the second pixel region 22; and the third area ratio of blue subpixel 3 refers to the ratio of the area of ​​the third main pixel region 31 to the area of ​​the third pixel region 32.

[0038] The technical improvement of this embodiment lies in the differentiated configuration of the second area ratio and the third area ratio. That is, while keeping the currently used second area ratio unchanged, the third area ratio is set to be less than the second area ratio. In this way, the area ratio of the third pixel area 32 of the blue sub-pixel 3 relative to its own opening area is higher than the area ratio of the second pixel area 22 of the green sub-pixel 2 relative to its own opening area.

[0039] Since increasing the area ratio of the subpixel region helps optimize the viewing angle characteristics of the subpixel at low grayscale, thereby improving the color shift problem at large viewing angles, and the contributions of green subpixel 2, red subpixel 1, and blue subpixel 3 to brightness decrease sequentially (the brightness contribution ratio is approximately 7:2:1); therefore, based on the above-mentioned improvement in this embodiment, that is, by optimizing the area ratio of the blue subpixel 3, which has the smallest brightness contribution, the viewing angle characteristics of the subpixel at low grayscale can be optimized by expanding the area of ​​the third pixel region 32, and the color shift of the key image (i.e., the red image with RGB values ​​of (175, 54, 60) and the blue image with RGB values ​​of (56, 61, 150)) can be effectively suppressed, while the aperture ratio loss caused by the expansion of the subpixel region area is kept to a minimum.

[0040] Therefore, this embodiment differentiates the second area ratio of the green sub-pixel 2 and the third area ratio of the blue sub-pixel 3. For the green sub-pixel 2, which contributes the most to brightness, its second area ratio can remain unchanged to ensure the aperture ratio. For the blue sub-pixel 3, which contributes the least to brightness, its third area ratio is set to be less than the second area ratio of the green sub-pixel 2. This allows for a targeted increase in the area ratio of the third pixel area 32 of the blue sub-pixel 3 relative to its own aperture area. By increasing the area of ​​the third pixel area 32, the viewing angle characteristics of the sub-pixel at low grayscale are optimized, and the color shift of key images is effectively suppressed. At the same time, the aperture ratio loss caused by the increase in the area of ​​the sub-pixel area can be kept to a minimum. Thus, while maintaining high transmittance and ensuring display brightness, the color shift problem at large viewing angles is improved, so that the display panel can better meet the CESI standard in terms of color shift performance, reducing color distortion and improving the user's viewing experience.

[0041] In one embodiment, refer to Figure 2 The ratio of the area of ​​the first main pixel area 11 to the area of ​​the first pixel area 12 is defined as the first area ratio, which is greater than the third area ratio.

[0042] This embodiment further differentiates the first area ratio and the third area ratio by setting the first area ratio to be greater than the third area ratio. This makes the area ratio of the first pixel area 12 of the red sub-pixel 1 relative to its own opening area lower than the area ratio of the third pixel area 32 of the blue sub-pixel 3 relative to its own opening area.

[0043] Since the contribution of red subpixel 1 to the overall display brightness is between that of green subpixel 2 and blue subpixel 3, this embodiment sets the first area ratio of red subpixel 1 to be greater than the third area ratio of blue subpixel 3. This can be seen as an intermediate strategy between optimizing viewing angle and maintaining brightness. Specifically, this embodiment adopts a relatively conservative strategy for red subpixel 1 within the overall framework of prioritizing the suppression of key image color shift by increasing the area of ​​the third pixel region 32 of blue subpixel 3. Since the contribution of red subpixel 1 to the overall display brightness is greater than that of blue subpixel 3, setting the first area ratio of red subpixel 1 to be greater than the third area ratio of blue subpixel 3 means that red subpixel 1 can maintain a relatively small first pixel region 12 area. This prioritizes ensuring the aperture ratio of red subpixel 1 itself, which in turn helps to maintain the overall brightness level of the display panel.

[0044] Based on the above settings of this embodiment, in practical applications, the first area ratio can be set to 1 / 2, 1 / 1.5, 1 / 1, etc., the second area ratio can be set to 1 / 2, 1 / 1.5, 1 / 1, etc., and the third area ratio can be set to 1 / 2.5, 1 / 3, 1 / 3.5, etc.; it is only necessary to satisfy the size relationship between the first area ratio, the second area ratio, and the third area ratio as defined above, and the specific ratio value is not limited here.

[0045] In one embodiment, refer to Figure 2 The first area ratio is equal to the second area ratio.

[0046] This embodiment establishes a clear area ratio relationship, namely, the blue sub-pixel 3 has the largest sub-pixel area ratio, while the red sub-pixel 1 and the green sub-pixel 2 adopt the same and relatively smaller sub-pixel area ratio.

[0047] In this embodiment, the first area ratio of red sub-pixel 1 and the second area ratio of green sub-pixel 2 are set to be equal. This means that a unified structural strategy is adopted on the two sub-pixels that have a greater impact on the overall brightness. This can ensure that red sub-pixel 1 and green sub-pixel 2 have a high aperture ratio, thereby better maintaining the overall brightness benchmark of the display panel.

[0048] In one embodiment, refer to Figure 3 The ratio of the area of ​​the first main pixel region 11 to the area of ​​the first pixel region 12 is defined as the first area ratio, which is less than the second area ratio.

[0049] This embodiment further differentiates the first area ratio and the second area ratio by setting the first area ratio to be less than the second area ratio. This makes the area ratio of the first pixel area 12 of the red sub-pixel 1 relative to its own opening area higher than the area ratio of the second pixel area 22 of the green sub-pixel 2 relative to its own opening area.

[0050] Based on the above settings in this embodiment, the red sub-pixel 1 also has a relatively large sub-pixel area ratio. This choice focuses more on further enhancing the synergistic optimization of viewing characteristics (especially the parts related to red), which can be combined with the area ratio adjustment scheme of the blue sub-pixel 3 to obtain a more comprehensive color shift suppression effect. Under this framework, the green sub-pixel 2 still maintains the smallest sub-pixel area ratio to maintain the overall display brightness.

[0051] Based on the above settings of this embodiment, in practical applications, the first area ratio can be set to 1 / 2.5, 1 / 3, 1 / 3.5, etc., the second area ratio can be set to 1 / 2, 1 / 1.5, 1 / 1, etc., and the third area ratio can be set to 1 / 2.5, 1 / 3, 1 / 3.5, etc.; it is only necessary to satisfy the size relationship between the first area ratio, the second area ratio, and the third area ratio as defined above, and the specific ratio value is not limited here.

[0052] In one embodiment, refer to Figure 3 The first area ratio is equal to the third area ratio.

[0053] This embodiment establishes a clear area ratio relationship, namely, the green sub-pixel 2 has the smallest sub-pixel area ratio, while the red sub-pixel 1 and the blue sub-pixel 3 adopt the same and relatively large sub-pixel area ratio.

[0054] In this embodiment, the same area ratio is used on the red sub-pixel 1 and the blue sub-pixel 3, which have a significant impact on the color shift of the key image. This achieves a synergistic improvement in viewing angle characteristics and can obtain a more comprehensive color shift suppression effect.

[0055] In one embodiment, refer to Figure 2 and Figure 3 The second area ratio is 1 / 2, and the third area ratio is 1 / 2.5.

[0056] Specifically, when the scheme of prioritizing overall display brightness in the above embodiments is adopted, the first area ratio is equal to the second area ratio. At this time, the first area ratio and the second area ratio are both set to 1 / 2, and the third area ratio is set to 1 / 2.5.

[0057] When the scheme that prioritizes improving the color shift suppression effect in the above embodiments is adopted, the first area ratio is equal to the third area ratio. At this time, the first area ratio and the third area ratio are both set to 1 / 2.5, and the second area ratio is set to 1 / 2.

[0058] Through simulation and experimental verification, the specific area ratio value provided in this embodiment can effectively optimize the viewing angle gamma curve at low gray levels. This allows for significant suppression of color shift in key test images for the CESI standard with minimal impact on overall brightness, achieving optimal display performance improvement. Specific CESI test results are as follows: Figure 4As shown, when the first area ratio, the second area ratio, and the third area ratio are all set to 1 / 2, the color deviation value under the CESI standard is 0.063; when the first area ratio and the second area ratio are all set to 1 / 2 and the third area ratio is set to 1 / 2.5, the color deviation value under the CESI standard is 0.058; when the first area ratio and the third area ratio are both set to 1 / 2.5 and the second area ratio is set to 1 / 2, the color deviation value under the CESI standard is 0.056.

[0059] This application also provides a display panel; please refer to [link / reference]. Figure 2 and Figure 3 The display panel includes multiple pixel structures as described in any of the above embodiments. The multiple pixel structures are arranged in an array along a first direction, and the red sub-pixel 1, green sub-pixel 2, and blue sub-pixel 3 in each pixel structure are arranged sequentially along the first direction.

[0060] In this embodiment, multiple pixel structures are arranged in an array along a first direction to form a complete display array. Specifically, the first direction can be set to correspond to the row direction or column direction of the display panel; as an example, such as Figure 2 and Figure 3 As shown, multiple pixel structures are arranged in an array along the row direction of the display panel. In the following description, the first direction will be used as the row direction of the display panel for illustration.

[0061] Each pixel structure includes a red sub-pixel 1, a green sub-pixel 2, and a blue sub-pixel 3 as described in the above embodiments, and the size relationships between the corresponding first area ratio, second area ratio, and third area ratio are all configured differently according to the scheme of the above embodiments. For example... Figure 2 and Figure 3 As shown, the red sub-pixel 1, green sub-pixel 2, and blue sub-pixel 3 in each pixel structure are arranged in an array along the row direction of the display panel, which provides a structural basis for realizing a regular pixel array and driving wiring.

[0062] This embodiment integrates multiple pixel structures into a display panel in an array, which can extend the viewing angle and brightness optimization effects of the above embodiment for a single pixel structure to the entire display area. Specifically, since the display panel in this embodiment adopts all the technical solutions of all the above-described pixel structure embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments. That is, the second area ratio of the green sub-pixel 2 and the third area ratio of the blue sub-pixel 3 are configured differently. For the green sub-pixel 2, which contributes the most to brightness, its second area ratio can be kept unchanged to ensure the aperture ratio. For the blue sub-pixel 3, which contributes the least to brightness, its third area ratio is set to be less than the second area ratio of the green sub-pixel 2. In this way, the area ratio of the third pixel area 32 of the blue sub-pixel 3 relative to its own aperture area can be expanded in a targeted manner. By expanding the area of ​​the third pixel area 32, the viewing angle characteristics of the sub-pixel at low gray levels can be optimized, and the color shift of key images can be effectively suppressed. At the same time, the aperture ratio loss caused by the expansion of the sub-pixel area can be controlled to a minimum. Thus, while maintaining a high transmittance and ensuring display brightness, the color shift problem at a large viewing angle is improved, so that the display panel can better meet the CESI standard in terms of color shift performance, reduce the color distortion of the image, and improve the user's viewing experience.

[0063] In one embodiment, refer to Figure 2 and Figure 3 The display panel also includes a gate line 4; the gate line 4 passes through a plurality of pixel structures along a first direction to divide each pixel structure into a first region 5 and a second region 6. The first main pixel area 11, the second main pixel area 21, and the third main pixel area 31 are all located within the first region 5, while the first pixel area 12, the second pixel area 22, and the third pixel area 32 are all located within the second region 6.

[0064] In this embodiment, for each pixel structure, the first main pixel region 11, the second main pixel region 21, and the third main pixel region 31 are all arranged on one side of the gate line 4, while the first pixel region 12, the second pixel region 22, and the third pixel region 32 are arranged on the other side of the gate line 4. To clearly describe the above positional relationship, this embodiment defines the area on one side of the gate line 4 where the first main pixel region 11, the second main pixel region 21, and the third main pixel region 31 are concentrated as the first region 5, and the area on the other side of the gate line 4 where the first pixel region 12, the second pixel region 22, and the third pixel region 32 are concentrated as the second region 6. Thus, the extension path of the gate line 4 can spatially present a shape that divides each pixel structure into the first region 5 and the second region 6.

[0065] By placing the main pixel area and sub-pixel area of ​​each pixel structure on both sides of the gate line 4, it is easy to realize the electrical connection between the gate line 4 and the data line on the main pixel area side and the data line on the sub-pixel area side through thin film transistors. In this way, the selection state of the main pixel area and sub-pixel area of ​​all sub-pixels in the row can be controlled by a single gate line 4, thereby simplifying the driving circuit design and optimizing the wiring space.

[0066] In one embodiment, refer to Figure 2 and Figure 3 The sides of the first main pixel region 11 facing away from the gate line 4, the side of the second main pixel region 21 facing away from the gate line 4, and the side of the third main pixel region 31 facing away from the gate line 4 are aligned with each other; the sides of the first pixel region 12 facing away from the gate line 4, the side of the second pixel region 22 facing away from the gate line 4, and the side of the third pixel region 32 facing away from the gate line 4 are aligned with each other. The gate line 4 has a lateral offset portion 41 at least at a position directly opposite the blue sub-pixel 3, and the lateral offset portion 41 protrudes toward the first region 5.

[0067] In this embodiment, with Figure 2 and Figure 3 Taking the orientation shown as an example, the upper edges of the first main pixel area 11, the second main pixel area 21, and the third main pixel area 31 are all positioned on the same horizontal extension line above, i.e., they are aligned with each other. Similarly, the lower edges of the first pixel area 12, the second pixel area 22, and the third pixel area 32 are also positioned on the same horizontal extension line below, i.e., they are aligned with each other. This layout helps maintain the regularity of the overall appearance of the pixel array and simplifies the graphic design of the related film layers. In addition, based on the above layout, the area ratio of the main pixel area to the sub-pixel area of ​​each sub-pixel can be adjusted while keeping the total area of ​​each red sub-pixel 1, the total area of ​​each green sub-pixel 2, and the total area of ​​each blue sub-pixel 3 unchanged.

[0068] Under the above constraints, since the third area ratio of blue sub-pixel 3 is smaller than the second area ratio of green sub-pixel 2, this means that the area of ​​the third main pixel region 31 is smaller than the area of ​​the second main pixel region 21; as Figure 2 and Figure 3 As shown, taking the first direction as the horizontal direction as an example, this size difference is specifically manifested in the following ways: in the height direction perpendicular to the first direction, the height dimension of the third main pixel area 31 is smaller than the height dimension of the second main pixel area 21, that is, the lower side of the third main pixel area 31 is located above the lower side of the second main pixel area 21; while the height dimension of the third pixel area 32 is larger than the height dimension of the second pixel area 22, that is, the upper side of the third pixel area 32 is located above the upper side of the second pixel area 22.

[0069] Based on the aforementioned dimensional relationship between the main pixel region and the sub-pixel region, in order to ensure that the gate line 4 can accurately pass between each group of main pixel regions and sub-pixel regions, and to ensure that the gate line 4 can form an effective electrical connection with each main pixel region and each sub-pixel region, as follows: Figure 2 As shown, for the position of gate line 4 directly opposite the blue sub-pixel 3, the routing path of gate line 4 needs to be locally offset towards the first region 5, thereby forming a lateral offset portion 41. This lateral offset portion 41 is the part of gate line 4 that protrudes upward towards the first region 5. Its function is to adapt to the spatial position of the third main pixel region 31 and the third pixel region 32, which changes due to the reduction in area ratio, to ensure that gate line 4 can accurately pass through the non-display area between the third main pixel region 31 and the third pixel region 32, and to ensure that gate line 4 can form an effective electrical connection with the third main pixel region 31 and the third pixel region 32 through the thin film transistor.

[0070] Similarly, when the first area ratio of red sub-pixel 1 is also smaller than the second area ratio of green sub-pixel 2 (for example, in the embodiment where the first area ratio equals the third area ratio), based on the same principle of constant total area and size change logic, such as Figure 3 As shown, for the position of gate line 4 directly opposite the red sub-pixel 1, the routing path of gate line 4 needs to be locally offset towards the first region 5, thereby forming a lateral offset portion 41. This lateral offset portion 41 is the part of gate line 4 that protrudes upward towards the first region 5. Its function is to adapt to the spatial position of the first main pixel area 11 and the first pixel area 12, which changes due to the reduction in area ratio, to ensure that gate line 4 can accurately pass through the non-display area between the first main pixel area 11 and the first pixel area 12, and to ensure that gate line 4 can form an effective electrical connection with the first main pixel area 11 and the first pixel area 12 through the thin film transistor.

[0071] Based on the above-mentioned arrangement of the gate line 4, from the overall structure of the display panel, the gate line 4 will repeatedly and regularly protrude towards the first region 5 at the corresponding position of each pixel structure, thereby forming multiple lateral offset portions 41. This allows the gate line 4 to present a stepped shape with periodic undulations in its overall extension direction.

[0072] This application also provides a display device, which includes the display panel in any of the above embodiments.

[0073] In this embodiment, the display device may include terminal devices with display functions such as televisions, mobile phones, tablet computers, and vehicle displays.

[0074] For the specific structure of the display panel, please refer to the description of the above embodiments. Since the display device in this embodiment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be repeated here.

[0075] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A pixel structure, characterized in that, The pixel structure includes: The red sub-pixel has a first main pixel area and a first pixel area; The green sub-pixel has a second main pixel area and a second pixel area; the ratio of the area of ​​the second main pixel area to the area of ​​the second pixel area is defined as the second area ratio; The blue sub-pixel has a third main pixel area and a third pixel area; the ratio of the area of ​​the third main pixel area to the area of ​​the third pixel area is defined as the third area ratio, which is less than the second area ratio.

2. The pixel structure according to claim 1, characterized in that, The ratio of the area of ​​the first main pixel region to the area of ​​the first pixel region is defined as the first area ratio, and the first area ratio is greater than the third area ratio.

3. The pixel structure according to claim 2, characterized in that, The first area ratio is equal to the second area ratio.

4. The pixel structure according to claim 1, characterized in that, The ratio of the area of ​​the first main pixel region to the area of ​​the first pixel region is defined as the first area ratio, and the first area ratio is less than the second area ratio.

5. The pixel structure according to claim 4, characterized in that, The first area ratio is equal to the third area ratio.

6. The pixel structure according to any one of claims 1 to 5, characterized in that, The second area ratio is 1 / 2, and the third area ratio is 1 / 2.

5.

7. A display panel, characterized in that, The display panel includes a plurality of pixel structures as described in any one of claims 1 to 6, the plurality of pixel structures being arranged in an array along a first direction, wherein the red sub-pixel, the green sub-pixel, and the blue sub-pixel in each pixel structure are arranged sequentially along the first direction.

8. The display panel according to claim 7, characterized in that, The display panel further includes gate lines; the gate lines pass through a plurality of pixel structures along the first direction to divide each pixel structure into a first region and a second region; The first main pixel area, the second main pixel area, and the third main pixel area are all located within the first area, and the first pixel area, the second pixel area, and the third pixel area are all located within the second area.

9. The display panel according to claim 8, characterized in that, The sides of the first main pixel region facing away from the gate line, the sides of the second main pixel region facing away from the gate line, and the sides of the third main pixel region facing away from the gate line are aligned with each other; the sides of the first pixel region facing away from the gate line, the sides of the second pixel region facing away from the gate line, and the sides of the third pixel region facing away from the gate line are aligned with each other. The gate line has a lateral offset portion at least at a position directly opposite the blue sub-pixel, and the lateral offset portion protrudes toward the first region.

10. A display device, characterized in that, The display device includes a display panel as claimed in any one of claims 7 to 9.

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