Display panel

Abstract

The application provides a display panel, which comprises a first substrate and a second substrate arranged oppositely, and a liquid crystal layer arranged between the first substrate and the second substrate; the first substrate comprises a plurality of data lines and a plurality of scan lines arranged at intervals, the data lines and the scan lines are arranged crossly to define a plurality of pixel opening areas, a first electrode layer comprises a first electrode pattern arranged in the pixel opening areas in a patterned manner, a second electrode layer comprises a plurality of first electrode traces arranged correspondingly to the first electrode pattern, the extension directions of the plurality of first electrode traces corresponding to the same first electrode pattern are the same, the liquid crystal layer is arranged on the side of the first electrode layer and the second electrode layer close to the second substrate, and the liquid crystal layer comprises a plurality of chiral liquid crystal molecules arranged in a spiral structure; the twist elastic constant can be improved by increasing the twist force of the liquid crystal molecules, so that the response speed of the liquid crystal is improved.

Description

Technical Field

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

[0002] With the development of display technology, flat panel display devices such as liquid crystal displays (LCDs) have become the mainstream display devices due to their advantages such as high image quality, power saving, thin body and wide range of applications, and are widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers.

[0003] Based on the different alignment methods of liquid crystals, the mainstream LCD panels on the market can be divided into the following types: Vertical Alignment (VA) type, Twisted Nematic (TN) type, Super Twisted Nematic (STN) type, In-Plane Switching (IPS) type, and Fringe Field Switching (FFS) type. Among them, FFS type LCD panels have advantages such as high transmittance and wide viewing angle, and have been widely used in small and medium-sized displays.

[0004] High Transmittance Ratio Field Switching (HFS) display mode is a type of FFS display panel. It not only possesses the advantages of high transmittance and wide viewing angle of FFS LCD panels, but also offers superior viewing angle image quality and low energy efficiency. However, in HFS display mode, because the liquid crystal rotates horizontally under the influence of an electric field, the elastic constant affecting its response speed is the torsional elastic constant (K22), which is more than 50% lower than the unfolded elastic constant (K11) and bending elastic constant (K33). Common techniques to improve the response speed of HFS display mode include reducing the viscosity of the liquid crystal and decreasing the cell gap, such as reducing the cell gap from 2.3–2.5 μm to 2.0 μm. However, the viscosity of the liquid crystal material has certain limitations, and reducing the cell gap to 2.0 μm leads to lower yield rates during mass production. Summary of the Invention

[0005] This application provides a display panel to improve the response speed of liquid crystal in HFS display mode.

[0006] To solve the above problems, the technical solution provided in this application is as follows:

[0007] This application provides a display panel, which includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; the first substrate includes:

[0008] Multiple data lines and multiple scan lines are arranged at intervals, and the data lines and scan lines are intersected to define multiple pixel opening areas;

[0009] The first electrode layer includes a first electrode pattern patterned on the pixel opening region;

[0010] The second electrode layer includes multiple first electrode traces corresponding to the first electrode pattern, and the multiple first electrode traces corresponding to the same first electrode pattern have the same extension direction.

[0011] The liquid crystal layer is disposed on the side of the first electrode layer and the second electrode layer near the second substrate, and the liquid crystal layer includes a plurality of chiral liquid crystal molecules arranged in a helical structure.

[0012] In the display panel provided in the embodiments of this application, the pitch of the chiral liquid crystal molecules is 40 micrometers to 300 micrometers.

[0013] In the display panel provided in the embodiments of this application, the display panel further includes a plurality of display pixels arranged in a multi-array, each display pixel includes a plurality of sub-pixels, each sub-pixel corresponds to a pixel opening area, and each sub-pixel includes a first electrode pattern and a plurality of first electrode traces corresponding to the first electrode pattern;

[0014] Each of the display pixels includes a first sub-pixel and a second sub-pixel. The angle between the first electrode trace in the first sub-pixel and the parallel line of the scan line is a first angle, and the angle between the first electrode trace in the second sub-pixel and the parallel line is a second angle. The first angle and the second angle are different.

[0015] In the display panel provided in this application embodiment, the first electrode pattern is a block electrode, and adjacent first electrode patterns are spaced apart.

[0016] In the display panel provided in this application embodiment, the range of the first included angle and the second included angle is 65° to 87°.

[0017] In the display panel provided in this application embodiment, the interval between adjacent first electrode traces within the first sub-pixel is a first interval, and the interval between adjacent first electrode traces within the second sub-pixel is a second interval. The interval distance of the first interval and the interval distance of the second interval are different.

[0018] And / or, the linewidth of the first electrode trace within the first sub-pixel is different from the linewidth of the first electrode trace within the second sub-pixel.

[0019] In the display panel provided in the embodiments of this application, the sum of the linewidth of the first electrode trace in the first sub-pixel and the spacing distance of the first interval is 4 micrometers to 10 micrometers; the sum of the linewidth of the first electrode trace in the second sub-pixel and the spacing distance of the second interval is 4 micrometers to 10 micrometers.

[0020] In the display panel provided in the embodiments of this application, within the same sub-pixel, the first electrode trace includes a first sub-line, a second sub-line, and a third sub-line connecting the first sub-line and the second sub-line, wherein the extension direction of the third sub-line is different from the extension directions of the first sub-line and the second sub-line.

[0021] In the display panel provided in this application embodiment, the second electrode layer further includes a second electrode trace corresponding to the data line and a third electrode trace located at both ends of the first electrode trace, wherein the third electrode trace connects the first electrode trace and the second electrode trace.

[0022] In the display panel provided in this application embodiment, multiple data lines are arranged at intervals in a first direction, and multiple scan lines are arranged at intervals in a second direction. The first direction and the second direction are different. In the second direction, the data lines are set as multiple zigzag segments.

[0023] In the display panel provided in this application embodiment, each data line includes a straight portion and a bent portion connecting two adjacent straight portions. The two adjacent straight portions extend in the same direction. The bent portion is provided corresponding to the scan line. The extension direction of the bent portion is the same as the extension direction of the scan line. In the second direction, the two adjacent bent portions at least partially overlap.

[0024] The beneficial effects of this application are as follows: The display panel provided by this application includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; the first substrate includes a plurality of data lines spaced apart in a first direction and a plurality of scan lines spaced apart in a second direction, the data lines and the scan lines intersecting to define a plurality of pixel opening regions, the first electrode layer includes a first electrode pattern patterned on the pixel opening regions, the second electrode layer includes a plurality of first electrode traces corresponding to the first electrode pattern, the extension directions of the plurality of first electrode traces corresponding to the same first electrode pattern are the same, the liquid crystal layer is disposed on the side of the first electrode layer and the second electrode layer near the second substrate, the liquid crystal layer includes a plurality of chiral liquid crystal molecules arranged in a spiral structure; this application forms a single-domain display by making the extension directions of the plurality of first electrode traces corresponding to the same first electrode pattern are the same, and the liquid crystal layer uses chiral liquid crystal molecules arranged in a spiral structure, which improves the torsional elastic constant (K22) by increasing the torsional force of the liquid crystal molecules, thereby improving the response speed of the liquid crystal. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application.

[0027] Figure 2 This is a partial planar structural diagram of the display panel provided in an embodiment of this application.

[0028] Figure 3 for Figure 2 A detailed structural diagram of point M in the middle.

[0029] Figure 4 for Figure 3 A schematic diagram of a local detail structure at point N.

[0030] Figure 5 for Figure 2 Another detailed structural diagram at point M. Detailed Implementation

[0031] The following descriptions of the embodiments are based on the accompanying illustrations, illustrating specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and understanding of this application, and not for limiting this application. In the figures, structurally similar units are denoted by the same reference numerals. In the figures, the thickness of some layers and regions is exaggerated for clarity and ease of description. That is, the dimensions and thicknesses of each component shown in the figures are arbitrarily shown, but this application is not limited thereto.

[0032] Please refer to Figures 1 to 3 , Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application. Figure 2 This is a partial planar structural diagram of the display panel provided in an embodiment of this application. Figure 3 for Figure 2 A detailed structural diagram at point M. (Refer to...) Figure 1 The display panel 100 includes a first substrate 1 and a second substrate 2 disposed opposite to each other, and a liquid crystal layer 3 and a sealant 4 disposed between the first substrate 1 and the second substrate 2, the sealant 4 surrounding the liquid crystal layer 3. Optionally, the first substrate 1 is an array substrate and the second substrate 2 is a color filter substrate. Of course, this application is not limited to this, and in this application, the color filter on the second substrate 2 can also be disposed on the first substrate 1. In this case, the second substrate 2 only serves as an opposing substrate.

[0033] The liquid crystal layer 3 comprises a plurality of chiral liquid crystal molecules arranged in a helical structure. The pitch of the chiral liquid crystal molecules is from 40 micrometers to 300 micrometers, for example, 40 micrometers, 50 micrometers, 60 micrometers, 80 micrometers, 100 micrometers, 130 micrometers, 150 micrometers, 180 micrometers, 190 micrometers, 200 micrometers, 260 micrometers, 300 micrometers, etc. The chiral liquid crystal molecules can be formed by adding a chiral agent to a positive liquid crystal. Adding a chiral agent to the liquid crystal causes the liquid crystal molecules to form a helical structure. The content of the chiral agent affects the pitch of the helical structure. By setting the pitch of the chiral liquid crystal molecules to 40 micrometers to 300 micrometers, the structure and content of the chiral agent can be designed. Thus, by using chiral liquid crystal molecules arranged in a helical structure in the liquid crystal layer 3, the torsional elastic constant (K22) of the liquid crystal molecules can be improved by increasing the torsional force of the liquid crystal molecules, thereby improving the response speed of the liquid crystal. Therefore, there is no need to adjust the viscosity of the liquid crystal molecules and the thickness of the liquid crystal cell, so that the thickness of the liquid crystal cell in this application can be maintained at more than 2.3 micrometers, that is, the distance between the first substrate 1 and the second substrate 2 is greater than or equal to 2.3 micrometers.

[0034] Reference Figure 2 The first substrate 1 includes multiple data lines DL spaced apart in a first direction X and multiple scan lines SL spaced apart in a second direction Y, each scan line SL extending along the first direction X. The data lines DL and the scan lines SL intersect to define multiple pixel opening regions PA. The first direction X and the second direction Y are different; for example, the first direction X is a row direction and the second direction Y is a column direction. In this case, the first direction X and the second direction Y are perpendicular. Of course, this application is not limited to this; the first direction X and the second direction Y can also intersect at other angles. This embodiment uses the example of the first direction X and the second direction Y being perpendicular.

[0035] The display panel 100 further includes multiple display pixels P arranged in a multi-array configuration. Each display pixel P includes multiple sub-pixels SP, and each sub-pixel SP corresponds to a pixel opening area PA. For example, each display pixel P includes three sub-pixels SP, which are used to display different colors. For instance, the three sub-pixels SP may be a first sub-pixel R, a second sub-pixel G, and a third sub-pixel B. The first sub-pixel R is used to display red, the second sub-pixel G is used to display green, and the third sub-pixel B is used to display blue, so that each display pixel P can display different colors, thereby achieving color display of the display panel 100.

[0036] Multiple sub-pixels SP are arranged in a sub-pixel row in the first direction X, and multiple sub-pixels SP are arranged in a sub-pixel column in the second direction Y. Optionally, two adjacent sub-pixels SP in the sub-pixel row are used to display different colors, and two adjacent sub-pixels SP in the sub-pixel column are used to display the same color, that is, multiple sub-pixels SP of each display pixel P are arranged at intervals in the first direction X.

[0037] Optionally, in the second direction Y, the data line DL is configured as a multi-segment line, that is, the data line DL is configured as a stepped line, and the data line DL is inclined in the second direction Y to form a certain angle with the alignment direction of the chiral liquid crystal molecules, ensuring that each column of sub-pixels SP is basically arranged at intervals in the second direction Y. Specifically, each data line DL includes a straight portion DL1 and a bent portion DL2 connecting two adjacent straight portions DL1. The two adjacent straight portions DL1 extend in the same direction. The bent portion DL2 is configured corresponding to the scan line SL, and the extension direction of the bent portion DL2 is the same as the extension direction of the scan line SL. In the second direction, the two adjacent bent portions DL2 at least partially overlap, so that the sub-pixels SP in the same sub-pixel column are staggered in the second direction Y, and the adjacent sub-pixels SP have a large overlapping area in the second direction Y, so as to ensure that each column of sub-pixels SP is basically arranged in the second direction Y.

[0038] Reference Figure 2 and Figure 3 The first substrate 1 further includes a first electrode layer 10 and a second electrode layer 20. Optionally, the metal layer containing the data line DL is located above the metal layer containing the scan line SL. The first electrode layer 10 is located above the metal layer containing the data line DL, and the second electrode layer 20 is located above the first electrode layer 10. That is, the first electrode layer 10 is located on the side of the metal layer containing the data line DL away from the metal layer containing the scan line SL, and the second electrode layer 20 is located on the side of the first electrode layer 10 away from the metal layer containing the data line DL. Of course, this application is not limited to this, and the positional relationship between the first electrode layer 10 and the second electrode layer 20 can be interchanged.

[0039] The first electrode layer 10 includes first electrode patterns 11 patterned on the pixel opening region PA. The first electrode patterns 11 are block electrodes, and adjacent first electrode patterns 11 are spaced apart. That is, the first electrode layer 10 includes a plurality of arrayed first electrode patterns 11, each first electrode pattern 11 corresponding to one pixel opening region PA. The first electrode patterns 11 are insulated from each other, such that each first electrode pattern 11 individually corresponds to one sub-pixel SP, used to control the display of the corresponding sub-pixel SP.

[0040] The second electrode layer 20 includes multiple first electrode traces 21 corresponding to the first electrode pattern 11. The multiple first electrode traces 21 corresponding to the same first electrode pattern 11 extend in the same direction. A slit 210 is formed between two adjacent first electrode traces 21. The multiple slits 210 corresponding to the same first electrode pattern 11 extend in the same direction, that is, the slit angles of the multiple slits 210 corresponding to the same first electrode pattern 11 are the same. Each sub-pixel SP includes a first electrode pattern 11 and multiple first electrode traces 21 corresponding to the first electrode pattern 11. Since the multiple first electrode traces 21 of the same first electrode pattern 11 extend in the same direction, each sub-pixel SP forms a single-domain display to match the rotation of the chiral liquid crystal molecules arranged in a helical structure.

[0041] The second electrode layer 20 further includes a second electrode trace 22 corresponding to the data line DL and a third electrode trace 23 located at both ends of the first electrode trace 21. The third electrode trace 23 connects the first electrode trace 21 and the second electrode trace 22, so that the first electrode traces 21 in each sub-pixel SP are connected together to form the second electrode layer 20 covering the entire surface. The second electrode layer 20 has a hollow structure in each sub-pixel SP corresponding to the position of the first electrode pattern 11 to form the slit 210. At this time, the electrical signals on the first electrode traces 21 in each sub-pixel SP are the same, the first electrode trace 21 serves as a common electrode, and the first electrode pattern 11 serves as a pixel electrode.

[0042] The first electrode trace 21 extends in the same direction as the straight portion DL1 on the data line DL. The second electrode trace 22 extends in the same direction as the first electrode trace 21. The third electrode trace 23 extends in the same direction as the bent portion DL2 on the data line DL, which is also the same as the extension direction of the scan line SL. The linewidth of the second electrode trace 22 is greater than that of the first electrode trace 21, and also greater than that of the data line DL, so that the second electrode trace 22 can completely block the data line DL.

[0043] The liquid crystal layer 3 is disposed on the side of the first electrode layer 10 and the second electrode layer 20 near the second substrate 2. A horizontal electric field is formed between the first electrode pattern 11 of the first electrode layer 10 and the first electrode trace 21 of the second electrode layer 20, so as to cause the chiral liquid crystal molecules of the liquid crystal layer 3 to rotate, thereby realizing the control of light. The first electrode layer 10, the second electrode layer 20, the data line DL, and the scan line SL are all located on the first substrate 1. Of course, the first substrate 1 also includes a substrate and a plurality of thin film transistors disposed on the substrate. Each sub-pixel SP may include at least one thin film transistor. The thin film transistor includes a source, a drain, and a gate. The source can be electrically connected to the data line DL, the gate can be electrically connected to the scan line SL, and the drain can be electrically connected to the first electrode pattern 11 to provide a driving signal to the first electrode pattern 11, so as to form a horizontal electric field between the first electrode pattern 11 and the corresponding first electrode trace 21.

[0044] In one embodiment, please refer to Figure 4 , Figure 4 for Figure 3 A schematic diagram of a local detail structure at point N. (Refer to...) Figure 4 and Figure 3 Taking the first sub-pixel R and the second sub-pixel G within each display pixel P as examples, the angle between the first electrode trace 21 within the first sub-pixel R and the parallel line B-B' of the scan line SL is the first angle α, and the angle between the first electrode trace 21 within the second sub-pixel G and the parallel line B-B' is the second angle β. The first angle α and the second angle β are different to improve the large viewing angle deviation problem caused by the single-domain design of the sub-pixel SP. The range of the first angle α and the second angle β is both 65° to 87°, such as 65°, 68°, 70°, 72°, 75°, 78°, 80°, 83°, 85°, 87°, etc. For example, the first angle α is 65° and the second angle β is 80°, where the first angle α is greater than the second angle β.

[0045] Wherein, the parallel line B-B' is a virtual straight line parallel to the scan line SL, and the extension direction of the parallel line B-B' is the same as the extension direction of the scan line SL, that is, the parallel line B-B' is parallel to the scan line SL and the first direction X. The angle between the first electrode trace 21 and the parallel line B-B' is equal to the angle between the extension of the first electrode trace 21 and the scan line SL, therefore, in Figure 4The angle between the parallel line B-B' and the first electrode trace 21 is used to represent the angle between the extension of the first electrode trace 21 and the scan line SL.

[0046] In other words, in the second direction Y, the first electrode trace 21 is inclined, and the inclination angle of the first electrode trace 21 in the second direction Y is 3° to 25°. That is, the angle between the extension direction of the first electrode trace 21 and the second direction Y is 3° to 25°, and the second direction Y is perpendicular to the extension direction of the scan line SL. Thus, within the same sub-pixel SP, the slit angle of the slit 210 formed by two adjacent first electrode traces 21 ranges from 3° to 25°. The slit angle of the slit 210 is also the angle between the extension direction of the slit 210 and the second direction Y.

[0047] It should be noted that, Figure 4 The main point is to illustrate the differentiated design of the first electrode trace 21 within each sub-pixel SP and the positional relationship between the first electrode trace 21 and the scan line SL. Figure 4 The diagram schematically illustrates a portion of the structure of the second electrode layer 20. Figure 4 The structure of the second electrode layer 20, which is not shown in the diagram, can be referred to Figure 3 For example, the second electrode trace 22 and the third electrode trace 23. Additionally, Figure 4 Compared to Figure 3 To clearly illustrate the area of ​​each pixel opening region PA, Figure 4 The middle part shows Figure 3 The data line DL is described in parts not shown in the diagram.

[0048] Optionally, each display pixel P further includes the third sub-pixel B, wherein the angle between the first electrode trace 21 within the third sub-pixel B and the parallel line B-B' is a third angle. This third angle differs from the first angle a and / or from the second angle b, to further improve the large viewing angle deviation problem caused by the single-domain design of the sub-pixel SP. The range of the third angle is 65° to 87°, such as 65°, 68°, 70°, 72°, 75°, 78°, 80°, 83°, 85°, 87°, etc.

[0049] In one embodiment, reference continues... Figure 4The spacing between adjacent first electrode traces 21 within the first sub-pixel R is a first spacing 201, and the spacing between adjacent first electrode traces 21 within the second sub-pixel G is a second spacing 202. The spacing distance L1 of the first spacing 201 and the spacing distance L2 of the second spacing 202 are different to further improve the large viewpoint color offset problem caused by the single-domain design of the sub-pixel SP. For example, the spacing distance L1 of the first spacing 201 is greater than the spacing distance L2 of the second spacing 202. Optionally, within the first sub-pixel R, the spacing distance L1 of any two adjacent first spacings 201 is equal, and within the second sub-pixel G, the spacing distance L2 of any two adjacent second spacings 202 is equal. That is, the first electrode traces 21 within the first sub-pixel R are uniformly arranged, and the first electrode traces 21 within the second sub-pixel G are also uniformly arranged.

[0050] Optionally, each display pixel P further includes a third sub-pixel B, wherein the interval between adjacent first electrode traces 21 within the third sub-pixel B is a third interval, which is different from the first interval 201 and / or different from the second interval 202. Within the third sub-pixel B, the interval distance between any two adjacent third intervals is equal, that is, the first electrode traces 21 within the third sub-pixel B are uniformly arranged.

[0051] In one embodiment, the linewidth D1 of the first electrode trace 21 in the first sub-pixel R is different from the linewidth D2 of the first electrode trace 21 in the second sub-pixel G, to further improve the large viewpoint color offset problem caused by the single-domain design of the sub-pixel SP. For example, the linewidth D1 of the first electrode trace 21 in the first sub-pixel R is greater than the linewidth D2 of the first electrode trace 21 in the second sub-pixel G. Optionally, in the first sub-pixel R, the linewidth D1 of each first electrode trace 21 is equal, and in the second sub-pixel G, the linewidth D2 of each first electrode trace 21 is equal.

[0052] Optionally, each display pixel P further includes the third sub-pixel B, wherein the linewidth of the first electrode trace 21 within the third sub-pixel B is different from the linewidth D1 of the first electrode trace 21 within the first sub-pixel R, and / or, the linewidth of the first electrode trace 21 within the third sub-pixel B is different from the linewidth D2 of the first electrode trace 21 within the second sub-pixel G. Within the third sub-pixel B, the linewidths of each first electrode trace 21 are equal.

[0053] Optionally, the sum of the linewidth D1 of the first electrode trace 21 within the first sub-pixel R and the spacing L1 of the first interval 201 is 4 micrometers to 10 micrometers. The sum of the linewidth D2 of the first electrode trace 21 within the second sub-pixel G and the spacing L2 of the second interval 202 is 4 micrometers to 10 micrometers. The sum of the linewidth of the first electrode trace 21 within the third sub-pixel B and the spacing distance of the third interval is 4 micrometers to 10 micrometers.

[0054] In one embodiment, please refer to Figure 5 , Figure 5 for Figure 2 Another detailed structural diagram at point M. (Refer to...) Figure 5 ,and Figure 3 The difference in the example first substrate 1 is that, within the same sub-pixel SP, the first electrode trace 21 includes a first sub-line 211, a second sub-line 212, and a third sub-line 213 connecting the first sub-line 211 and the second sub-line 212. The extension direction of the third sub-line 213 is different from the extension direction of the first sub-line 211 and the second sub-line 212, so that each first electrode trace 21 is set in a zigzag shape, in order to further improve the response speed of the liquid crystal and further improve the large viewing angle color shift problem caused by the single-domain design of the sub-pixel SP.

[0055] Optionally, the first sub-line 211 and the second sub-line 212 extend in the same direction. The extension direction of the first sub-line 211 is the same as the extension direction of the straight portion DL1 of the data line DL, and the extension direction of the third sub-line 213 is the same as the extension direction of the bent portion DL2 of the data line DL. Within the same sub-pixel SP, two adjacent third sub-lines 213 coincide in the first direction X. In the first direction X, the third sub-lines 213 within two adjacent sub-pixels SP coincide, that is, within the same sub-pixel row, the third sub-lines 213 within each sub-pixel SP coincide in the first direction X.

[0056] As can be seen from the above embodiments:

[0057] This application provides a display panel, which includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a plurality of data lines spaced apart in a first direction and a plurality of scan lines spaced apart in a second direction. The data lines and the scan lines intersect to define a plurality of pixel opening regions. A first electrode layer includes a first electrode pattern patterned in the pixel opening regions. A second electrode layer includes a plurality of first electrode traces corresponding to the first electrode pattern. The extension directions of the plurality of first electrode traces corresponding to the same first electrode pattern are the same. The liquid crystal layer is disposed on the side of the first electrode layer and the second electrode layer near the second substrate. The liquid crystal layer includes a plurality of chiral liquid crystal molecules arranged in a helical structure. This application forms a single-domain display by making the extension directions of the plurality of first electrode traces corresponding to the same first electrode pattern the same. Moreover, the liquid crystal layer uses chiral liquid crystal molecules arranged in a helical structure. By increasing the torsional elastic constant (K22) of the liquid crystal molecules, the response speed of the liquid crystal can be improved.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, The substrate includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; the first substrate includes: Multiple data lines and multiple scan lines are arranged at intervals, and the data lines and scan lines are intersected to define multiple pixel opening areas; The first electrode layer includes a first electrode pattern patterned on the pixel opening region, wherein the first electrode pattern serves as a pixel electrode. The second electrode layer includes multiple first electrode traces disposed in the thickness direction of the display panel, corresponding to the first electrode pattern. The multiple first electrode traces corresponding to the same first electrode pattern extend in the same direction, and the same first electrode trace extends in the same direction. The first electrode traces serve as a common electrode. The liquid crystal layer is disposed on the side of the first electrode layer and the second electrode layer near the second substrate. The liquid crystal layer includes a plurality of chiral liquid crystal molecules arranged in a spiral structure. The display panel also includes a plurality of display pixels arranged in a multi-array. Each display pixel includes a plurality of sub-pixels. Each sub-pixel corresponds to a pixel opening area. Each sub-pixel includes a first electrode pattern and a plurality of first electrode traces corresponding to the first electrode pattern. The second electrode layer also includes a second electrode trace corresponding to the data line and a third electrode trace located at both ends of the first electrode trace. The third electrode trace connects the first electrode trace and the second electrode trace.

2. The display panel according to claim 1, characterized in that, The pitch of the chiral liquid crystal molecules is from 40 micrometers to 300 micrometers.

3. The display panel according to claim 1, characterized in that, Each of the display pixels includes a first sub-pixel and a second sub-pixel. The angle between the first electrode trace in the first sub-pixel and the parallel line of the scan line is a first angle, and the angle between the first electrode trace in the second sub-pixel and the parallel line is a second angle. The first angle and the second angle are different.

4. The display panel according to claim 3, characterized in that, The first electrode pattern is a block electrode, and adjacent first electrode patterns are spaced apart.

5. The display panel according to claim 3, characterized in that, The range of both the first included angle and the second included angle is 65° to 87°.

6. The display panel according to claim 3, characterized in that, The spacing between adjacent first electrode traces within the first sub-pixel is the first spacing, and the spacing between adjacent first electrode traces within the second sub-pixel is the second spacing. The spacing distance of the first spacing and the spacing distance of the second spacing are different. And / or, the linewidth of the first electrode trace within the first sub-pixel is different from the linewidth of the first electrode trace within the second sub-pixel.

7. The display panel according to claim 6, characterized in that, The sum of the linewidth of the first electrode trace within the first sub-pixel and the spacing distance of the first interval is 4 micrometers to 10 micrometers; the sum of the linewidth of the first electrode trace within the second sub-pixel and the spacing distance of the second interval is 4 micrometers to 10 micrometers.

8. The display panel according to any one of claims 3 to 7, characterized in that, Within the same sub-pixel, the first electrode trace includes a first sub-line, a second sub-line, and a third sub-line connecting the first sub-line and the second sub-line, wherein the extension direction of the third sub-line is different from the extension direction of the first sub-line and the second sub-line.

9. The display panel according to any one of claims 1 to 7, characterized in that, Multiple data lines are arranged at intervals in a first direction, and multiple scan lines are arranged at intervals in a second direction. The first direction and the second direction are different. In the second direction, the data lines are configured as multi-segment lines.

10. The display panel according to claim 9, characterized in that, Each data line includes a straight section and a bent section connecting two adjacent straight sections. The two adjacent straight sections extend in the same direction. The bent section is provided corresponding to the scan line. The bending section extends in the same direction as the scan line. In the second direction, the two adjacent bent sections at least partially overlap.

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