Display panel and display device

Abstract

The invention discloses a display panel and a display device, the display panel comprises a plurality of pixel units, each pixel unit comprises a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit, the red sub-pixel unit comprises a first pixel electrode, the green sub-pixel unit comprises a second pixel electrode, and the blue sub-pixel unit comprises a third pixel electrode. A first included angle is formed between a horizontal axis trunk electrode and a branch electrode of the first pixel electrode; each green sub-pixel unit comprises a second pixel electrode, and a second included angle is formed between a horizontal axis trunk electrode and a branch electrode of each second pixel electrode; each blue sub-pixel unit comprises a third pixel electrode, and a third included angle is formed between a horizontal axis trunk electrode and a branch electrode of each third pixel electrode; wherein the third included angle is smaller than the first included angle and the second included angle. Through the design, the phenomena of bluish color when a white picture is displayed and skin color whitening when a person is displayed under a side view angle can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology

[0002] Among commonly used displays, liquid crystal displays (LCDs) are among the most widely used due to their advantages such as low power consumption, low radiation, small size, and good image display quality. An LCD panel typically consists of an array substrate with pixel electrodes, a color filter substrate with common electrodes, and a liquid crystal layer disposed between the array substrate and the color filter substrate. When a voltage is applied to the pixel electrodes, an electric field is generated in the liquid crystal layer, causing the liquid crystal molecules to deflect under the influence of the electric field. This allows control over light transmission, thereby enabling the display of images.

[0003] With the rapid development of the display market, high contrast, high transmittance, and wide viewing angles are becoming increasingly important in large-screen monitors and television applications. To achieve a wide viewing angle, multi-domain vertical alignment (MVA) technology is typically used to provide more domains to achieve a wider viewing angle. However, from a side viewing angle, there are issues such as a bluish tint when displaying white images and a washed-out appearance of skin tones when displaying people, which affects the display effect. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and display device to improve the phenomenon of bluish tint when displaying white images from a side view and whitish skin tones when displaying people.

[0005] This application discloses a display panel comprising a plurality of pixel units, including a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit. The red sub-pixel unit includes a first pixel electrode, with a first angle formed between the horizontal axis main electrode and the branch electrode of the first pixel electrode. The green sub-pixel unit includes a second pixel electrode, with a second angle formed between the horizontal axis main electrode and the branch electrode of the second pixel electrode. The blue sub-pixel unit includes a third pixel electrode, with a third angle formed between the horizontal axis main electrode and the branch electrode of the third pixel electrode. The third angle is smaller than both the first and second angles.

[0006] Optionally, the branch electrode width of the third pixel electrode is smaller than the branch electrode width of the first pixel electrode and the branch electrode width of the second pixel electrode, and the spacing between adjacent branch electrodes of the third pixel electrode is greater than the spacing between adjacent branch electrodes of the first pixel electrode and the spacing between adjacent branch electrodes of the second pixel electrode.

[0007] Optionally, the display panel includes an edge region and a center region, the edge region surrounds the center region, and the edge region and the center region are respectively provided with a plurality of pixel units, wherein the pixel unit provided in the edge region is defined as a first pixel unit, and the pixel unit provided in the center region is defined as a second pixel unit; the third included angle in the first pixel unit is smaller than the third included angle in the second pixel unit.

[0008] Optionally, the display panel further includes a transition region disposed between the edge region and the center region. The transition region contains a plurality of pixel units, and each pixel unit disposed in the transition region is defined as a third pixel unit. The third included angle in the first pixel unit is smaller than the third included angle in the second pixel unit. The branch electrode width of the third pixel electrode in the first pixel unit is smaller than the branch electrode width of the third pixel electrode in the second pixel unit. The spacing between adjacent branch electrodes of the third pixel electrode in the first pixel unit is greater than the spacing between adjacent branch electrodes of the third pixel electrode in the second pixel unit.

[0009] Optionally, in the first pixel unit, the third included angle is 35°, the branch electrode width of the third pixel electrode is 2.5µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5.5µm; in the second pixel unit, the third included angle is 40°, the branch electrode width of the third pixel electrode is 2.6µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5µm; in the third pixel unit, the third included angle is 38°, the branch electrode width of the third pixel electrode is 2.55µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5.2µm.

[0010] Optionally, the first pixel electrode, the second pixel electrode, and the third pixel electrode further include a vertical axis backbone electrode, which intersects with the horizontal axis backbone electrode to form four liquid crystal alignment regions. Each liquid crystal alignment region is provided with multiple parallel branch electrodes. The display panel includes multiple first light-shielding strips, which are disposed on the light-emitting side of the third pixel electrode and overlap with the vertical axis backbone electrode in the third pixel electrode.

[0011] Optionally, the display panel further includes multiple second light-shielding strips, which are disposed on the light-emitting side of the second pixel electrode and overlap with the longitudinal backbone electrode in the second pixel electrode.

[0012] Optionally, the width of the first light-shielding strip is 1-1.2 times the width of the longitudinal backbone electrode in the third pixel electrode, and the width of the second light-shielding strip is 1-1.2 times the width of the longitudinal backbone electrode in the second pixel electrode.

[0013] Optionally, the display panel further includes an eye movement recognition sensor and an operational amplifier. The eye movement recognition sensor is used to recognize human eye movements. The input terminal of the operational amplifier is connected to the eye movement recognition sensor, and the output terminal of the operational amplifier is connected to the first light-shielding strip. The first light-shielding strip is made of metal material and is also connected to the common electrode in the blue sub-pixel unit. When the eye movement recognition sensor detects that the human eye is looking at the side of the display panel, the eye movement recognition sensor outputs a feedback voltage, and the operational amplifier outputs a pull-down voltage according to the feedback voltage to reduce the voltage of the common electrode.

[0014] This application also discloses a display device, which includes a driving circuit and a display panel as described above. The driving circuit is connected to the display panel and is used to drive the display panel.

[0015] The beneficial effects of this application embodiment are as follows: By making the angle between the main horizontal electrode and the branch electrode of the pixel electrode in the blue sub-pixel unit smaller than the angle between the main horizontal electrode and the branch electrode of the pixel electrode in the red and green sub-pixel units, the brightness reduction of the blue sub-pixel at the side view is slowed down, the brightness change of the blue sub-pixel at the side view is reduced, and the problem of bluishness when displaying white images at the side view (when the user views the side of the display panel) and the problem of skin whitening when displaying people are improved. Attached Figure Description

[0016] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of a display panel provided in the first embodiment of this application; Figure 2This is a schematic diagram of the first type of pixel unit provided in the first embodiment of this application; Figure 3 This is a schematic diagram of the second type of pixel unit provided in the first embodiment of this application; Figure 4 This is a plan view of the first type of display panel provided in the first embodiment of this application; Figure 5 This is a plan view of the second type of display panel provided in the first embodiment of this application; Figure 6 This is a schematic diagram of a third pixel electrode combined with a first light-shielding strip according to the first embodiment of this application; Figure 7 This is a schematic diagram of a third pixel electrode combined with a first light-shielding strip and a second light-shielding strip according to the first embodiment of this application; Figure 8 This is a schematic diagram of another display panel provided in the first embodiment of this application; Figure 9 This is a schematic diagram of a sub-pixel unit provided in the first embodiment of this application; Figure 10 This is a schematic diagram A illustrating the effect of gamma voltage and a third switch on the viewing angle, provided in the first embodiment of this application; Figure 11 This is a schematic diagram (B) illustrating the effect of gamma voltage and a third switch on the viewing angle, provided in the first embodiment of this application. Figure 12 This is a schematic diagram A showing the effect of another gamma voltage and a third switch on the viewing angle provided in the first embodiment of this application; Figure 13 This is a schematic diagram (B) illustrating the effect of another gamma voltage and a third switch on the viewing angle, provided in the first embodiment of this application. Figure 14 This is a schematic diagram A illustrating the effect of the thickness of the gate insulating layer on the viewing angle, provided in the first embodiment of this application; Figure 15 This is a schematic diagram (B) illustrating the effect of the thickness of the gate insulating layer on the viewing angle, provided in the first embodiment of this application. Figure 16 This is a schematic diagram A illustrating the effect of the thickness of a passivation layer on the viewing angle, provided in the first embodiment of this application. Figure 17 This is a schematic diagram (B) illustrating the effect of the passivation layer thickness on the viewing angle, provided in the first embodiment of this application. Figure 18 This is a schematic diagram A illustrating the effect of cell thickness of a liquid crystal layer on viewing angle, provided in the first embodiment of this application; Figure 19 This is a schematic diagram (B) illustrating the effect of cell thickness of a liquid crystal layer on viewing angle, provided in the first embodiment of this application. Figure 20 This is a schematic diagram A illustrating the effect of multiple factors combined on the viewing angle, provided in the first embodiment of this application; Figure 21 This is a schematic diagram (B) illustrating the effect of multiple factors combined on the viewing angle, provided in the first embodiment of this application. Figure 22 This is a schematic diagram A illustrating the effect of a polarizer on the viewing angle according to the first embodiment of this application; Figure 23 This is a schematic diagram (B) illustrating the effect of a polarizer on the viewing angle, provided in the first embodiment of this application. Figure 24 This is a schematic diagram of a display device provided in the second embodiment of this application.

[0017] Among them, 10 is a display device; 20 is a driving circuit; 30 is a display panel; 30A is a central area; 30B is a transition area; 30C is an edge area; 100 is a pixel unit; R is a red sub-pixel unit; T1 is a first pixel electrode; φ1 is a first included angle; G is a green sub-pixel unit; T2 is a second pixel electrode; φ2 is a second included angle; B is a blue sub-pixel unit; T3 is a third pixel electrode; φ3 is a third included angle; 101 is a horizontal axis main electrode; 102 is a vertical axis main electrode; 103 is a branch electrode; 200 is a first light-shielding strip; 300 is a second light-shielding strip; 400 is an eye movement recognition sensor; and 500 is an operational amplifier. Detailed Implementation

[0018] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0019] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0020] When users view the display screen, they usually face the display panel directly. The inventors discovered that when users view the side of the display panel from a side viewpoint, if the side of the display panel displays a white image, the image will appear bluish. If the side of the display panel displays a person, the person's skin will appear pale. This is because the coordinates of the color point when viewed from the front and from the side deviate significantly, resulting in a larger change in brightness between the two views. Furthermore, when viewed from the side, the brightness of red, green, and blue all decrease, but red decreases the fastest. Therefore, at extreme side views, blue actually has a higher "residual brightness" relative to red, making the proportion of blue light appear larger. This leads to an increase in the brightness of blue and green subpixels and a decrease in the brightness of red subpixels, with the largest increase in the brightness of blue subpixels. Consequently, when displaying white images on the side of the display panel, a bluish color cast appears, and when displaying images of people, skin tones appear washed out. Additionally, the gamma index of the display panel shifts when viewed from the side, causing the side view to appear "faded," a phenomenon known in the industry as colorwashout. This also contributes to the washed-out skin tone when displaying images of people from the side.

[0021] In view of the above problems, the first embodiment of this application provides a display panel, such as Figure 1 and Figure 2 As shown, the display panel 30 includes a plurality of pixel units 100, each pixel unit 100 including a red sub-pixel unit R, a green sub-pixel unit G, and a blue sub-pixel unit B. The red sub-pixel unit R includes a first pixel electrode T1, with a first angle φ1 formed between the horizontal axis main electrode 101 and the branch electrode 103 of the first pixel electrode T1. The green sub-pixel unit G includes a second pixel electrode T2, with a second angle φ2 formed between the horizontal axis main electrode 101 and the branch electrode 103 of the second pixel electrode T2. The blue sub-pixel unit B includes a third pixel electrode T3, with a third angle φ3 formed between the horizontal axis main electrode 101 and the branch electrode 103 of the third pixel electrode T3. The third angle φ3 is smaller than the first angle φ1 and the second angle φ2.

[0022] Since the arrangement of the branch electrodes 103 affects the deflection of liquid crystal molecules, and the deflection of liquid crystal molecules affects the amount of light transmitted; at a frontal viewing angle, when the angle between the horizontal axis main electrode 101 and the branch electrodes 103 of the pixel electrode is 45°, the amount of backlight transmitted through the display panel 30 is the highest; and the smaller the angle between the horizontal axis main electrode 101 and the branch electrodes 103, the less light transmitted when viewed from the front. Correspondingly, at a side viewing angle, the smaller the angle between the horizontal axis main electrode 101 and the branch electrodes 103 of the pixel electrode, the less light transmitted, and since the base of light transmitted decreases, the rate of decrease in light transmitted decreases, which can also be understood as a slower rate of darkening.

[0023] Based on the above logic, this embodiment of the application makes the angle between the main horizontal electrode 101 and the branch electrode 103 of the pixel electrode in the blue sub-pixel unit B smaller than the angle between the main horizontal electrode 101 and the branch electrode 103 of the pixel electrode in the red sub-pixel unit R and the green sub-pixel unit G. This reduces the decrease in light transmittance of the blue sub-pixel unit B from the side view and slows down the decrease in brightness. This reduces the brightness change of the blue sub-pixel unit B from the side view, thereby improving the problem of a bluish white screen when displaying a white screen from the side view. In other words, when a user views the side view of the display panel 30, the white screen appears bluish, and the skin tone of the person appears pale.

[0024] In some specific implementations, the first included angle φ1 and the second included angle φ2 are equal. For example, the first included angle φ1 is 45°, the second included angle φ2 is 45°, and the third included angle φ3 is 40°.

[0025] In some specific embodiments, the first included angle φ1 is greater than the second included angle φ2, and the second included angle φ2 is equal to the third included angle φ3. For example, the first included angle φ1 is 45°, the second included angle φ2 is 40°, and the third included angle φ3 is 40°.

[0026] In some specific implementations, the first included angle φ1 is greater than the second included angle φ2, and the second included angle φ2 is greater than the third included angle φ3. For example, the first included angle φ1 is 45°, the second included angle φ2 is 40°, and the third included angle φ3 is 35°.

[0027] Furthermore, such as Figure 3As shown, in some embodiments, the width L3 of the branch electrode 103 of the third pixel electrode T3 is smaller than the width L1 of the branch electrode 103 of the first pixel electrode T1 and the width L2 of the branch electrode 103 of the second pixel electrode T2. This application embodiment improves the problem of a bluish tint to white images from a side viewing angle by reducing the width of the branch electrode 103 of the pixel electrode in the blue sub-pixel unit B. When the width of the branch electrode 103 of the pixel electrode in the blue sub-pixel unit B decreases, fewer liquid crystal molecules overlap with the branch electrode 103, resulting in fewer controllable liquid crystal molecules and more liquid crystal molecules in their original state with low light transmittance. This reduces the light transmittance of the blue sub-pixel, further slowing down the decrease in brightness of the blue sub-pixel, reducing the brightness difference between side and front views, and making the brightness of the image from the side viewing angle closer to the brightness of the image from the front viewing angle. This avoids the problem of a bluish tint to the image from the side viewing angle and the problem of skin color differences in the displayed figures.

[0028] In some embodiments, the spacing S3 between adjacent branch electrodes 103 of the third pixel electrode T3 is greater than the spacing S1 between adjacent branch electrodes 103 of the first pixel electrode T1 and the spacing S2 between adjacent branch electrodes 103 of the second pixel electrode T2. This application embodiment improves the bluish tint problem of the image from a side viewing angle by increasing the spacing between adjacent branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B. When the spacing between adjacent branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B is increased, more liquid crystal molecules do not overlap with the branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B, resulting in fewer controllable liquid crystal molecules by the branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B. More liquid crystal molecules remain in their original state and have low light transmittance, thereby reducing the light transmittance of the blue sub-pixel, further slowing down the decrease in brightness of the blue sub-pixel, and reducing the brightness difference of the blue sub-pixel between side and front views. This makes the brightness of the image from a side viewing angle approach the brightness of the image from a front viewing angle, thereby avoiding the problem of a bluish tint in the image from a side viewing angle and the problem of skin tone differences in the displayed figures.

[0029] In some embodiments, the width L3 of the branch electrode 103 of the third pixel electrode T3 is smaller than the width L1 of the branch electrode 103 of the first pixel electrode T1 and the width L2 of the branch electrode 103 of the second pixel electrode T2; simultaneously, the spacing S3 between adjacent branch electrodes 103 of the third pixel electrode T3 is larger than the spacing S1 between adjacent branch electrodes 103 of the first pixel electrode T1 and the spacing S2 between adjacent branch electrodes 103 of the second pixel electrode T2. This embodiment of the application simultaneously reduces the width of the branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B and increases the spacing between adjacent branch electrodes 103 of the pixel electrode in the blue sub-pixel unit B. This dual design reduces the light transmittance of the blue sub-pixel, further slows down the brightness reduction of the blue sub-pixel, and further improves the blue tint problem of the image when viewed from the side.

[0030] In some specific embodiments, the width L3 of the branch electrode 103 of the third pixel electrode T3 is 2.6 μm, and the spacing S3 between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.4 μm; or, the width L3 of the branch electrode 103 of the third pixel electrode T3 is 2.5 μm, and the spacing S3 between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.5 μm; or, the width L3 of the branch electrode 103 of the third pixel electrode T3 is 2.4 μm, and the spacing S3 between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.6 μm. As for the branch electrodes 103 in the first pixel electrode T1 and the second pixel electrode T2, the width can be 2.7 μm, and the spacing between adjacent branch electrodes 103 in the first pixel electrode T1 and the second pixel electrode T2 can be 2.3 μm.

[0031] In some embodiments, the blue tint problem in the image when viewed from the side can also be improved by increasing the sum of the width of the branch electrode 103 of the third pixel electrode T3 and the spacing between the adjacent branch electrodes 103 of the third pixel electrode T3. Specifically, the width of the branch electrode 103 of the third pixel electrode T3 is 2.7µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.5µm, with a sum of 5.2µm; or, the width of the branch electrode 103 of the third pixel electrode T3 is 3µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.5µm, with a sum of 5.5µm; or, the width of the branch electrode 103 of the third pixel electrode T3 is 3.5µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 2.5µm, with a sum of 6µm; or, through other size designs, the sum of the width of the branch electrode 103 of the third pixel electrode T3 and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is greater than the sum of the width of the branch electrode 103 of the first pixel electrode T1 and the spacing between adjacent branch electrodes 103 of the first pixel electrode T1, thereby improving the blue tint problem of the image when viewed from the side.

[0032] Alternatively, the blue tint issue in the image when viewed from the side can be improved by reducing the area of ​​the third pixel electrode T3. For example, a black matrix can be used to block part of the opening area of ​​the third pixel electrode T3 (i.e., the area between adjacent branch electrodes 103); or the film thickness of the third pixel electrode T3 can be increased to reduce the thickness of the liquid crystal cell corresponding to the blue sub-pixel unit B, reduce the transmittance of the blue sub-pixel unit B, and reduce the brightness difference between the front and side views, thereby improving the blue tint issue in the image when viewed from the side.

[0033] The inventors also discovered that during normal movie viewing, especially on large-sized panels, most people are positioned relative to the center of the display panel 30. As the viewing angle changes, the color shift at the edges of the display panel 30 becomes more severe than in the center. Based on this, this application embodiment reduces the degree of color shift at the edges of the display panel 30 by adjusting the blue sub-pixels at the edges of the display panel 30.

[0034] like Figure 4 As shown, in some embodiments, the display panel 30 is divided into an edge region 30C and a central region 30A. The edge region 30C surrounds the central region 30A. The edge region 30C and the central region 30A are respectively provided with a plurality of pixel units 100. The pixel unit 100 provided in the edge region 30C is defined as a first pixel unit 100, and the pixel unit 100 provided in the central region 30A is defined as a second pixel unit 100. The third included angle φ3 in the first pixel unit 100 is smaller than the third included angle φ3 in the second pixel unit 100. This embodiment of the application further reduces the third included angle φ3 of the blue sub-pixel unit B in the edge region 30C, that is, the included angle between the horizontal axis main electrode 101 and the branch electrode 103 of the third pixel electrode T3 in the blue sub-pixel unit B, so as to reduce the brightness variation of the blue sub-pixel unit B in the edge region 30C, making the color shift degree of the edge region 30C similar to that of the center region 30A, thereby reducing the color shift degree of the display panel 30 in the edge region 30C.

[0035] Furthermore, the width of the branch electrode 103 of the third pixel electrode T3 in the first pixel unit 100 is smaller than the width of the branch electrode 103 of the third pixel electrode T3 in the second pixel unit 100.

[0036] Furthermore, the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the first pixel unit 100 is greater than the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the second pixel unit 100.

[0037] like Figure 5As shown, in some embodiments, the display panel 30 is divided into an edge region 30C, a transition region 30B, and a central region 30A. The edge region 30C surrounds the central region 30A and the transition region 30B. The transition region 30B is located between the edge region 30C and the central region 30A. The transition region 30B contains a plurality of pixel units 100, and each pixel unit 100 in the transition region 30B is defined as a third pixel unit 100. The third included angle φ3 in the first pixel unit 100 is smaller than the third included angle φ3 in the third pixel unit 100, and the third included angle φ3 in the third pixel unit 100 is smaller than the third included angle φ3 in the second pixel unit 100. This embodiment of the application, by dividing the display panel 30 into an edge region 30C, a transition region 30B, and a central region 30A, avoids a significant difference in color shift when the edge region 30C and the central region 30A meet, thus preventing any impact on the display effect. By adding a transition region 30B between the edge region 30C and the center region 30A, and by designing the third included angle φ3 of the third pixel unit 100 in the transition region 30B, the color deviation in the edge region 30C and the transition region 30B is similar, and the color deviation in the center region 30A and the transition region 30B is similar, thereby improving the overall display effect of the display panel 30.

[0038] Furthermore, the width of the branch electrode 103 of the third pixel electrode T3 in the first pixel unit 100 is smaller than the width of the branch electrode 103 of the third pixel electrode T3 in the third pixel unit 100, and the width of the branch electrode 103 of the third pixel electrode T3 in the third pixel unit 100 is smaller than the width of the branch electrode 103 of the third pixel electrode T3 in the second pixel unit 100.

[0039] Furthermore, the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the first pixel unit 100 is greater than the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the third pixel unit 100, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the third pixel unit 100 is greater than the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 in the second pixel unit 100.

[0040] In one specific implementation, in the central region 30A, i.e., in the second pixel unit 100, the third included angle φ3 of the blue sub-pixel unit B is 40°, the width of the branch electrode 103 of the third pixel electrode T3 is 2.6µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 5µm. In the transition region 30B, i.e., in the third pixel unit 100, the third included angle φ3 of the blue sub-pixel unit B is 38°, the width of the branch electrode 103 of the third pixel electrode T3 is 2.55µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 5.2µm. In the edge region 30C, i.e., in the first pixel unit 100, the third included angle φ3 of the blue sub-pixel unit B is 35°, the width of the branch electrode 103 of the third pixel electrode T3 is 2.5µm, and the spacing between adjacent branch electrodes 103 of the third pixel electrode T3 is 5.5µm.

[0041] In the first pixel electrode T1, the second pixel electrode T2 and the third pixel electrode T3, in addition to the branch electrode 103 and the horizontal axis main electrode 101, there is also a vertical axis main electrode 102. The vertical axis main electrode 102 intersects with the horizontal axis main electrode 101 to form four liquid crystal alignment regions. Each liquid crystal alignment region is provided with a plurality of parallel branch electrodes 103.

[0042] The inventors also discovered that when viewed from the side, the main electrode 102 along the longitudinal axis exhibits a problem of low to medium grayscale brightness due to liquid crystal alignment disorder.

[0043] Based on this, such as Figure 6 As shown in the embodiment of this application, multiple first light-shielding strips 200 are added to the display panel 30. The first light-shielding strips 200 can be made of metal or other non-metallic light-shielding materials. The first light-shielding strips 200 are disposed on the light-emitting side of the third pixel electrode T3, that is, the first light-shielding strips 200 are disposed above the third pixel electrode T3, and the first light-shielding strips 200 overlap with the vertical axis main electrode 102 in the third pixel electrode T3, covering the lower vertical axis main electrode 102. When viewed from the side, if the blue sub-pixel unit B is bright in the low grayscale, the first light-shielding strips 200 block the bright spot of the lower blue sub-pixel unit B to improve the viewing angle, and at the same time avoid the blue sub-pixel unit B being too bright when viewed from the side, which would cause color shift problems.

[0044] Furthermore, such as Figure 7 As shown, the display panel 30 also includes multiple second light-shielding strips 300. The second light-shielding strips 300 are disposed on the light-emitting side of the second pixel electrode T2 and overlap with the longitudinal main electrode 102 in the second pixel electrode T2.

[0045] As shown in Table 1, the brightness changes of the three sub-pixel units of RGB when viewed from the front and the side are simulated by simulation software. The vertical axis main electrode 102 of the pixel electrode in the three sub-pixel units of RGB is blocked by the light-blocking structure, the vertical axis main electrode 102 of the pixel electrode in the two sub-pixel units of GB is blocked, and the vertical axis main electrode 102 of the pixel electrode in the seed pixel unit of B is blocked. When the main vertical electrode 102 of the pixel electrode in the RGB sub-pixel units is not blocked, the side-view brightness change of the blue sub-pixel unit B is the largest (35.7%). When only the main vertical electrode 102 of the pixel electrode in the blue sub-pixel unit B is blocked, the side-view brightness change of the blue sub-pixel unit B decreases (18.5%), but the brightness change of the green sub-pixel unit G is relatively increased. Therefore, blocking the main vertical electrode 102 of the pixel electrode in the green sub-pixel unit G and the blue sub-pixel unit B at the same time can improve the side-view bluish problem and alleviate some of the side-view greenish problems. If the main vertical electrode 102 of the pixel electrode in the red sub-pixel unit R, the green sub-pixel unit G and the blue sub-pixel unit B are blocked at the same time, the brightness change of the blue sub-pixel unit B is large, which does not meet the requirements. Therefore, in this embodiment, the vertical axis main electrode 102 of the pixel electrode in the blue sub-pixel unit B is blocked by the first light-blocking strip 200, and the vertical axis main electrode 102 of the pixel electrode in the green sub-pixel unit G is blocked by the second light-blocking strip 300, which can simultaneously improve the problem of the image appearing blue and green when viewed from the side.

[0046]

[0047] Table 1: Side-view brightness changes when the vertical axis main electrode of the pixel electrode is blocked. Furthermore, the width of the first light-shielding strip 200 is 1-1.2 times the width of the longitudinal main electrode 102 in the third pixel electrode T3, and the width of the second light-shielding strip 300 is 1-1.2 times the width of the longitudinal main electrode 102 in the second pixel electrode T2.

[0048] As shown in Table 2, changing the width of the light-shielding strip affects the brightness from the side viewing angle. The results show that: when the width of the light-shielding strip of the main vertical electrode 102 of the pixel electrode in the blue sub-pixel unit B is larger, it has a positive effect on improving color shift; when the width of the light-shielding strip of the main vertical electrode 102 of the pixel electrode in the green sub-pixel unit G is larger, it also has a positive effect on improving color shift; when the width of the light-shielding strip of the main vertical electrode 102 of the pixel electrode in the red sub-pixel unit R is larger, it is not conducive to improving color shift. Furthermore, since a larger width of the light-shielding strip leads to a decrease in the pixel aperture ratio, this embodiment of the application sets the width of the first light-shielding strip 200 to 1-1.2 times the width of the longitudinal main electrode 102 in the third pixel electrode T3, and sets the width of the second light-shielding strip 300 to 1-1.2 times the width of the longitudinal main electrode 102 in the second pixel electrode T2. While ensuring the aperture ratio, this reduces the variation range of the side-view brightness of the green sub-pixel and the side-view brightness of the red sub-pixel, which can effectively improve the color shift problem when viewed from the side.

[0049] It should be noted that in Table 2, M1 CD-R represents the width of the light-shielding strip used to block the vertical axis main electrode 102 of the pixel electrode in the red sub-pixel unit R, M1 CD-G represents the width of the light-shielding strip used to block the vertical axis main electrode 102 of the pixel electrode in the green sub-pixel unit G, and M1 CD-B represents the width of the light-shielding strip used to block the vertical axis main electrode 102 of the pixel electrode in the blue sub-pixel unit B.

[0050] As a specific implementation, when the width of the longitudinal main electrode 102 of the green sub-pixel unit G and the blue sub-pixel unit B is 5µm, the width of the first light-shielding strip 200 is 7µm, the width of the second light-shielding strip 300 is 7µm, and no additional light-shielding structure is provided on the longitudinal main electrode 102 of the pixel electrode in the red sub-pixel unit R, the side-view brightness of the green sub-pixel and the side-view brightness of the red sub-pixel change very little, which can effectively improve the color shift problem of blue and green in the side-view image.

[0051] In one specific implementation, when the width of the longitudinal main electrode 102 of the green sub-pixel unit G and the blue sub-pixel unit B is 5µm, the width of the first light-shielding strip 200 is 7µm, the width of the second light-shielding strip 300 is 5µm, and no additional light-shielding structure is provided on the longitudinal main electrode 102 of the pixel electrode in the red sub-pixel unit R. At this time, the side-view brightness of the green sub-pixel and the side-view brightness of the red sub-pixel change by a small margin, and the original transmittance can be maintained, thereby improving the brightness effect.

[0052]

[0053] Table 2: Side-view brightness variation when the vertical axis backbone electrode of the pixel electrode is occluded by different sizes. like Figure 8 As shown, in some embodiments, the display panel 30 further includes an eye movement recognition sensor 400 and an operational amplifier 500. The eye movement recognition sensor 400 is used to recognize human eye movements. The input terminal of the operational amplifier 500 is connected to the eye movement recognition sensor 400, and the output terminal of the operational amplifier 500 is connected to the first light-shielding strip 200. The first light-shielding strip 200 is made of metal material and is also connected to the common electrode Acom in the blue sub-pixel unit B. When the eye movement recognition sensor 400 detects that the human eye is looking at the side of the display panel 30, the eye movement recognition sensor 400 outputs a feedback voltage, and the operational amplifier 500 outputs a pull-down voltage according to the feedback voltage to reduce the voltage of the common electrode.

[0054] The eye movement recognition sensor 400 can be an iris tracking sensor. This type of sensor primarily relies on infrared sensors (such as infrared cameras) to capture reflected light signals from the eyeball. Combined with algorithms, it analyzes information such as pupil position and gaze trajectory. It uses an infrared light source to illuminate the cornea, generating reflection points that are captured and analyzed by a camera to capture and analyze positional changes. Alternatively, it can use a laser to scan corneal reflections and detect changes in light using a photoelectric sensor. This eye movement tracking technology is widely used in human-computer interaction devices, medical diagnostics (strabismus detection), and autonomous driving assistance systems, and will not be elaborated upon further here. After embedding the iris tracking sensor within the display panel 30, the iris tracking sensor detects the user's lateral gaze amplitude and movement angle.

[0055] In the display panel 30, the common electrode Acom forms a storage capacitor with the pixel electrode or scan line. In this embodiment, when the user is viewing the screen directly (i.e., viewing the center area 30A of the screen), the operational amplifier 500 outputs a larger voltage to the common electrode, resulting in a larger stored charge in the storage capacitor. When the user is viewing the screen from the side (i.e., viewing the side of the screen), the operational amplifier 500 outputs a smaller voltage to the common electrode. The pull-down voltage output by the operational amplifier 500 lowers the voltage of the common electrode, resulting in a smaller stored charge in the storage capacitor. This reduces the charging capability and charging rate of the blue sub-pixel unit B, making the blue sub-pixel unit B darker, thereby optimizing the color shift problem from the side viewing angle. This embodiment can dynamically adjust the brightness of the blue sub-pixel unit B, ensuring the overall brightness of the display panel 30 when the user is viewing directly and improving the color shift problem when the user is viewing from the side, thus enhancing the user experience of the display panel 30.

[0056] There can be two eye motion recognition sensors 400 and two operational amplifiers 500. Each side of the display panel 30 is provided with an eye motion recognition sensor 400 and an operational amplifier 500. The combination of two pairs of eye motion recognition sensors 400 and operational amplifiers 500 can improve the accuracy of capturing human eye movements.

[0057] In some embodiments, the output of the operational amplifier 500 is connected to both the first light-shielding strip 200 and the second light-shielding strip 300. The first light-shielding strip 200 is connected to the common electrode Acom in the blue sub-pixel unit B, and the second light-shielding strip 300 is connected to the common electrode Acom in the green sub-pixel unit G.

[0058] In this embodiment, the display panel is a liquid crystal display (LCD) panel. The display panel includes an array substrate and a color filter substrate disposed opposite to each other, and a liquid crystal layer disposed between the array substrate and the color filter substrate. The first pixel electrode, the second pixel electrode, and the third pixel electrode are all disposed on the array substrate. The array substrate specifically includes a substrate, a gate electrode, a gate insulating layer, a source electrode, a drain electrode, an active layer, a passivation layer, and a pixel electrode layer. The gate electrode is disposed on the substrate, the gate insulating layer is disposed on the gate electrode, the active layer is disposed on the gate insulating layer, the source electrode and the drain electrode are both disposed on the active layer and respectively connected to the active layer, the passivation layer is disposed on the source electrode and the drain electrode, and the pixel electrode layer is disposed on the passivation layer. The first pixel electrode, the second pixel electrode, and the third pixel electrode are all part of the pixel electrode layer.

[0059] like Figure 9 As shown, each sub-pixel unit (including red, green, and blue sub-pixel units) includes a main pixel unit and a sub-pixel unit. The main pixel unit has a first switch T1, and the sub-pixel unit has a second switch T2 and a third switch T3. The control terminals of the first switch T1 and the second switch T2 are connected to the scan line (Gate line). The input terminals of the first switch T1 and the second switch T2 are connected to the data line (Data line). The control terminal of the third switch T3 is connected to the scan line (Gate line), and the input terminal of the third switch T3 is connected to the output terminal of the second switch T2. Furthermore, the pixel electrode portions connected to the output terminals of the first switch T1, the second switch T2, and the third switch T3 respectively form a liquid crystal capacitor Clc with the common electrode and a storage capacitor Cst with the common electrode Acom.

[0060] In some embodiments, the gamma voltage is 13V-15V, and the input voltage of the third switch T3 is 5V-9V. Further, the gamma voltage is 14.5V, and the input voltage of the third switch T3 is 7V.

[0061] Figure 10 and Figure 11 ( Figure 10 and Figure 11 (The two graphs represent the same content, with the former in color and the latter in black and white.) This indicates that the saturation and color depth of four skin tones were measured at different viewing angles with a gamma voltage of 15.5V and an input voltage of 9.5V for T3. The four two-dimensional coordinate systems, skin2_dC, skin4_dC, skin5_dC, and skin6_dC, represent the saturation test results of the four skin tones at different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the saturation level. The solid line in the graph represents the measured saturation change, and the three dashed lines represent the saturation specifications of the three RGB colors. The smaller the difference between the two ends of the solid saturation line and the center of the line on the vertical axis, the better the color cast improvement. The four two-dimensional coordinate systems skin2_dH, skin4_dH, skin5_dH, and skin6_dH represent the color depth test results of four skin tones under different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the color depth. The solid line in the figure represents the measured color depth variation, and the three dashed lines represent the color depth specifications of the three RGB colors. The smaller the difference between the two ends of the solid color depth line and the center of the solid line (when the horizontal axis of the solid line is 0, the vertical axis represents the color depth), the better the color cast improvement effect.

[0062] Figure 12 and Figure 13 ( Figure 12 and Figure 13(The two graphs represent the same content, with the former in color and the latter in black and white.) This indicates that the saturation and color depth of four skin tones were measured at different viewing angles with a gamma voltage of 14.5V and an input voltage of 7V for T3. The four two-dimensional coordinate systems, skin2_dC, skin4_dC, skin5_dC, and skin6_dC, represent the saturation test results of the four skin tones at different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the saturation level. The solid line in the graph represents the measured saturation changes, and the three dashed lines represent the saturation specifications of the three RGB colors. The smaller the difference between the two ends of the solid saturation line and the center of the line on the vertical axis, the better the color cast improvement. The four two-dimensional coordinate systems, skin2_dH, skin4_dH, skin5_dH, and skin6_dH, represent the color depth test results of four skin tones under different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the color depth. The solid line in the figure represents the measured color depth variation, and the three dashed lines represent the color depth specifications of the three RGB colors. The smaller the difference between the two ends of the solid color depth line and the center of the solid line on the vertical axis, the better the color cast improvement effect.

[0063] By comparison Figure 10 skin2_dC and Figure 12 skin2_dC, Figure 10 skin4_dC and Figure 12 skin4_dC, Figure 10 skin5_dC and Figure 12 skin5_dC and Figure 10 skin6_dC and Figure 12 In skin6_dC, we can find that Figure 12 The solid saturation line in the middle is relative to Figure 10 The solid saturation line in the image has shifted slightly upwards (away from the dashed line) at both ends, and the difference between the vertical coordinates of the two ends of the solid line and the center of the solid line is smaller. This indicates that when the gamma voltage is 14.5V and the input voltage of T3 is 7V, it is beneficial to improve the saturation of skin tones when viewed from the side.

[0064] By comparison Figure 10 skin2_dH and Figure 12 skin2_dH, Figure 10 skin4_dH and Figure 12 skin4_dH in Figure 10 skin5_dH and Figure 12 skin5_dH and Figure 10 skin6_dH and Figure 12In skin6_dH, we can find that Figure 12 The darkest solid lines in the middle are relative to Figure 10 The solid line representing color depth shifts slightly downwards at both ends, and the difference in the vertical coordinates between the two ends and the center of the line is smaller. This indicates that a gamma voltage of 14.5V and an input voltage of 7V for T3 are beneficial for improving the saturation of skin tones from a side view. Since a gamma voltage of 14.5V and an input voltage of 7V for T3 can simultaneously improve both the saturation and color depth of skin tones from a side view, and reduce the difference in saturation and color depth between frontal and side views, it can improve the color cast of skin tones from a side view.

[0065] In some embodiments, the thickness of the gate insulating layer is 4500 angstroms to 5200 angstroms, specifically 4800 angstroms.

[0066] Figure 14 and Figure 15 ( Figure 14 and Figure 15 (The two graphs represent the same content, one in color and the other in black and white.) This graph shows the saturation and color depth of skin tones measured at different viewing angles when the gate insulating layer (GI) thickness is 4800 Å and 5400 Å. The dC coordinate system represents the saturation test results of the skin tone image at different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the saturation level. The solid line in the graph represents the measured saturation changes when the GI thickness is 4800 Å and 5400 Å, and the three dashed lines represent the saturation specifications of the three RGB colors. The smaller the difference between the two ends of the solid saturation line and the center of the line on the vertical axis, the better the color shift improvement effect. The two-dimensional coordinate system corresponding to dH represents the color depth test results of skin color images under different viewing angles. The horizontal axis represents the viewing angle size, and the vertical axis represents the color depth. The solid line in the figure represents the measured color depth changes when the thickness of the gate insulating layer GI is 4800 angstroms and 5400 angstroms. The three dashed lines represent the color depth specifications of the three colors of RGB respectively. The smaller the difference between the two ends of the solid color depth line and the center of the solid line on the vertical axis, the better the color shift improvement effect.

[0067] like Figure 14 and Figure 15As shown, the solid line for saturation when the gate insulating layer (GI) thickness is 4800 Å shifts slightly upwards at both ends compared to the solid line for GI thickness of 5400 Å. The difference in the ordinate between the two ends of the solid line and the center of the solid line is also smaller. This indicates that a GI thickness of 4800 Å is beneficial for improving the saturation of skin tones at side viewing angles. Similarly, the solid line for color depth when the gate insulating layer (GI) thickness is 4800 Å shifts slightly downwards at both ends compared to the solid line for GI thickness of 5400 Å. The difference in the ordinate between the two ends of the solid line and the center of the solid line is also smaller. This indicates that a GI thickness of 4800 Å is beneficial for improving the color depth of skin tones at side viewing angles.

[0068] Since the thickness of the gate insulating layer GI is 4800 angstroms, it can simultaneously improve the saturation and color depth of skin tones at the side view, and reduce the saturation and color depth differences of skin tones at the front and side views, thus improving the color shift of skin tones at the side view.

[0069] In some embodiments, the thickness of the passivation layer PV is 1000 angstroms to 1200 angstroms, specifically 1000 angstroms.

[0070] Figure 16 and Figure 17 ( Figure 16 and Figure 17 (The two graphs represent the same content, one in color and the other in black and white.) This graph shows the color depth of skin tones measured at different viewing angles when the passivation layer PV thickness is 1000 Å and 1300 Å. The horizontal axis represents the viewing angle, and the vertical axis represents the color depth. The solid lines in the graph represent the measured color depth changes when the passivation layer PV thickness is 1000 Å and 1300 Å, respectively. The three dashed lines represent the color depth specifications of the three RGB colors. The smaller the difference between the two ends of the solid color depth line and the center of the solid line on the vertical axis, the better the color cast improvement.

[0071] like Figure 16 and Figure 17 As shown, the solid line of color depth when the thickness of the passivation layer PV is 1000 Å is slightly shifted downwards at both ends compared to the solid line of color depth when the thickness of the passivation layer PV is 1300 Å. The difference in the vertical coordinate between the two ends of the solid line and the center of the solid line is smaller. This indicates that a thickness of 1000 Å for the passivation layer PV is beneficial for improving the color depth of skin tones when viewed from the side and improving the color cast of skin tones when viewed from the side.

[0072] In some embodiments, the cell thickness of the liquid crystal layer is 3.0um-3.2um, specifically 3.2um.

[0073] Figure 18 and Figure 19 ( Figure 18 and Figure 19 (The two graphs represent the same content, with the former in color and the latter in black and white.) This indicates that the saturation and color depth of skin tones were measured at different viewing angles when the cell gap thickness of the liquid crystal layer was 3.2µm and 3.3µm. The four two-dimensional coordinate systems, skin2_dC, skin4_dC, skin5_dC, and skin6_dC, represent the saturation test results of the four skin tones at different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the saturation level. The solid line in the graph represents the measured saturation change, and the three dashed lines represent the saturation specifications of the three RGB colors. The smaller the difference between the two ends of the solid saturation line and the center of the line on the vertical axis, the better the color shift improvement effect. The four two-dimensional coordinate systems skin2_dh, skin4_dh, skin5_dh, and skin6_dh represent the color depth test results of four skin tones under different viewing angles. The horizontal axis represents the viewing angle, and the vertical axis represents the color depth. The solid line in the figure represents the measured color depth variation, and the three dashed lines represent the color depth specifications of the three RGB colors. The smaller the difference between the two ends of the solid color depth line and the center of the solid line (when the horizontal axis of the solid line is 0, the vertical axis represents the color depth), the better the color cast improvement effect.

[0074] like Figure 18 and Figure 19 As shown, by comparing the solid saturation lines representing the cell gap of the liquid crystal layer with a cell gap of 3.2µm and the solid saturation lines representing the cell gap of the liquid crystal layer with a cell gap of 3.3µm in the four two-dimensional coordinate systems skin2_dC, skin4_dC, skin5_dC, and skin6_dC, it can be found that the solid saturation lines representing the cell gap of the liquid crystal layer with a cell gap of 3.2µm are basically shifted upwards at both ends compared to the solid lines representing the cell gap of 3.3µm. The difference in the vertical coordinates between the two ends of the solid lines and the center of the solid lines is smaller. This indicates that when the cell gap of the liquid crystal layer is 3.2µm, it is beneficial to improve the saturation of skin tones at the side viewing angle.

[0075] By comparing the solid saturation lines representing a cell gap of 3.2µm and 3.3µm in the four two-dimensional coordinate systems (skin2_dh, skin4_dh, skin5_dh, and skin6_dh), it can be observed that the solid line representing color depth with a cell gap of 3.2µm shifts slightly downwards at both ends compared to the solid line representing color depth with a cell gap of 3.3µm. The difference in the vertical coordinates between the two ends of the solid line and the center of the line is also smaller. This indicates that a cell gap of 3.2µm is beneficial for improving the color depth of skin tones at side viewing angles. Since a cell gap of 3.2µm can simultaneously improve the saturation and color depth of skin tones at side viewing angles, and reduce the saturation and color depth differences between frontal and side viewing angles, it can improve the color shift of skin tones at side viewing angles.

[0076] Moreover, combined Figure 20 and Figure 21 ( Figure 20 and Figure 21 (Representing the same content, the former in color and the latter in black and white) As shown, when the gamma voltage is 14.5V, the input voltage of the third switch T3 is 7V, the thickness of the gate insulating layer is 4800 angstroms, the thickness of the passivation layer is 1000 angstroms, and the cell thickness of the liquid crystal layer is 3.2µm, the difference in the vertical coordinate between the two ends and the center of the saturation solid line is small, and the difference in the vertical coordinate between the two ends and the center of the color depth solid line is also small, which can effectively improve the color shift problem at the side viewing angle. Among them, in Figure 20 and Figure 21 In the diagram, the solid lines in the four two-dimensional coordinate systems skin2_dH, skin4_dH, skin5_dH, and skin6_dH represent the changes in color depth under different viewing angles under the conditions described above; the solid lines in the four two-dimensional coordinate systems skin2_dC, skin4_dC, skin5_dC, and skin6_dC represent the changes in saturation under different viewing angles under the conditions described above.

[0077] In some embodiments, a polarizer is provided on the outer side of the color filter substrate, and a grating is provided inside the polarizer. In this embodiment, the vertical light is dispersed by the grating, and the side-view light is increased, thereby achieving the effect of improving the viewing angle. At this time, when the displayed screen is white, the side-view light is diffused by the grating to improve the viewing angle. When the displayed screen is black, the side-view light is refracted back along the propagation path by the grating, so that light leakage is not observed.

[0078] like Figure 22 and Figure 23 ( Figure 22 and Figure 23 (Representing the same content, the former in color and the latter in black and white) As shown, when the above polarizer design is used, the difference in the vertical coordinates between the two ends of the saturation solid line and the center is small, and the difference in the vertical coordinates between the two ends of the color depth solid line and the center is also small, which can effectively improve the color shift problem from the side viewing angle. Among them, in Figure 22 and Figure 23 In the diagram, the solid lines in the four two-dimensional coordinate systems skin2_dH, skin4_dH, skin5_dH, and skin6_dH represent the changes in color depth under the above conditions at different viewing angles; the solid lines in the four two-dimensional coordinate systems skin2_dC, skin4_dC, skin5_dC, and skin6_dC represent the changes in saturation under the above conditions at different viewing angles.

[0079] like Figure 24 As shown, as a second embodiment of this application, the display device 10 includes a driving circuit 20 and a display panel 30 as described above. The driving circuit 20 is connected to the display panel 30 and is used to drive the display panel 30.

[0080] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A display panel comprising a plurality of pixel units, characterized in that, The pixel unit includes: The red sub-pixel unit includes a first pixel electrode, and a first included angle is formed between the horizontal axis main electrode and the branch electrode of the first pixel electrode. The green sub-pixel unit includes a second pixel electrode, wherein a second included angle is formed between the main horizontal electrode and the branch electrode of the second pixel electrode; and The blue sub-pixel unit includes a third pixel electrode, wherein a third included angle is formed between the horizontal axis main electrode and the branch electrode of the third pixel electrode. The third included angle is smaller than the first included angle and the second included angle.

2. The display panel as described in claim 1, characterized in that, The branch electrode width of the third pixel electrode is smaller than the branch electrode width of the first pixel electrode and the branch electrode width of the second pixel electrode, and the spacing between adjacent branch electrodes of the third pixel electrode is greater than the spacing between adjacent branch electrodes of the first pixel electrode and the spacing between adjacent branch electrodes of the second pixel electrode.

3. The display panel as described in claim 1, characterized in that, The display panel includes an edge region and a center region. The edge region surrounds the center region. The edge region and the center region are respectively provided with a plurality of pixel units. The pixel units provided in the edge region are defined as first pixel units, and the pixel units provided in the center region are defined as second pixel units. The third included angle in the first pixel unit is smaller than the third included angle in the second pixel unit.

4. The display panel as described in claim 3, characterized in that, The display panel further includes a transition area, which is disposed between the edge area and the center area. The transition area is provided with a plurality of pixel units, and the pixel units disposed in the transition area are defined as third pixel units. The included angle in the first pixel unit is smaller than the included angle in the third pixel unit, and the included angle in the third pixel unit is smaller than the included angle in the second pixel unit; the branch electrode width of the third pixel electrode in the first pixel unit is smaller than the branch electrode width of the third pixel electrode in the third pixel unit, and the branch electrode width of the third pixel electrode in the third pixel unit is smaller than the branch electrode width of the third pixel electrode in the second pixel unit; the spacing between adjacent branch electrodes of the third pixel electrode in the first pixel unit is larger than the spacing between adjacent branch electrodes of the third pixel electrode in the third pixel unit, and the spacing between adjacent branch electrodes of the third pixel electrode in the third pixel unit is larger than the spacing between adjacent branch electrodes of the third pixel electrode in the second pixel unit.

5. The display panel as described in claim 4, characterized in that, In the first pixel unit, the third included angle is 35°, the branch electrode width of the third pixel electrode is 2.5µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5.5µm; In the second pixel unit, the third included angle is 40°, the branch electrode width of the third pixel electrode is 2.6µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5µm; In the third pixel unit, the third included angle is 38°, the branch electrode width of the third pixel electrode is 2.55µm, and the spacing between adjacent branch electrodes of the third pixel electrode is 5.2µm.

6. The display panel as described in claim 1, characterized in that, The first pixel electrode, the second pixel electrode, and the third pixel electrode further include a vertical axis backbone electrode, which intersects with the horizontal axis backbone electrode to form four liquid crystal alignment regions, and each liquid crystal alignment region is provided with a plurality of parallel branch electrodes; The display panel includes multiple first light-shielding strips, which are disposed on the light-emitting side of the third pixel electrode and overlap with the longitudinal main electrode of the third pixel electrode.

7. The display panel as described in claim 6, characterized in that, The display panel also includes multiple second light-shielding strips, which are disposed on the light-emitting side of the second pixel electrode and overlap with the longitudinal main electrode in the second pixel electrode.

8. The display panel as described in claim 7, characterized in that, The width of the first light-shielding strip is 1-1.2 times the width of the longitudinal main electrode in the third pixel electrode, and the width of the second light-shielding strip is 1-1.2 times the width of the longitudinal main electrode in the second pixel electrode.

9. The display panel as described in claim 6, characterized in that, The display panel also includes an eye movement recognition sensor and an operational amplifier. The eye movement recognition sensor is used to recognize human eye movements. The input terminal of the operational amplifier is connected to the eye movement recognition sensor, and the output terminal of the operational amplifier is connected to the first light-shielding strip. The first light-shielding strip is made of metal material, and the first light-shielding strip is also connected to the common electrode in the blue sub-pixel unit; When the eye movement recognition sensor detects that a person's eye is looking at the side of the display panel, the eye movement recognition sensor outputs a feedback voltage, and the operational amplifier outputs a pull-down voltage based on the feedback voltage to reduce the voltage of the common electrode.

10. A display device, characterized in that, It includes a driving circuit and a display panel as described in any one of claims 1-9, wherein the driving circuit is connected to the display panel and is used to drive the display panel.

Images