Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the technical field of display, which comprises a stacked image display panel and a light control panel. The light control panel comprises a plurality of first signal lines arranged along a first direction. The first signal lines are set as zigzag lines, so that the first signal lines comprise wave crests and wave troughs alternately arranged along a second direction. The first direction and the second direction intersect, and both the first direction and the second direction are parallel to the plane where the display panel is located. Furthermore, in the two adjacent first signal lines, the wave crest of one first signal line is arranged correspondingly with the wave trough of the other first signal line. In this way, the interval between two adjacent bright areas and two adjacent dark areas along the first direction can be effectively increased, the periodic frequency of each bright area and each dark area along the first direction can be obviously reduced, the moire phenomenon generated when the light control panel is stacked with the image display panel can be reduced or eliminated, and the display effect is improved.

Description

Technical Field

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

[0002] As people's demands for display quality continue to rise, stacked display technology has emerged. Stacked display panels combine an image display panel and a light control panel, allowing the light control panel to control the amount of light entering the image display panel, minimizing black levels and achieving higher contrast than traditional single-color display panels, thus improving display quality. However, currently, stacked display panels are prone to exhibiting moiré patterns visible to the human eye, affecting their display performance. Summary of the Invention

[0003] To address the aforementioned technical problems, this application provides a display panel and display device to reduce or eliminate moiré patterns in stacked display panels and improve display performance.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] In a first aspect, this application provides a display panel, which includes a stacked image display panel and a light control panel;

[0006] The light control panel includes multiple first signal lines arranged along a first direction. The first signal lines are zigzag lines. The first signal lines include peaks and troughs arranged continuously and alternately along a second direction. The first direction and the second direction intersect. Both the first direction and the second direction are parallel to the plane where the display panel is located.

[0007] In two adjacent first signal lines, the peak of one first signal line is set to correspond to the trough of the other first signal line.

[0008] Secondly, this application provides a display device that includes the aforementioned display panel.

[0009] Compared with existing technologies, the above technical solution has the following advantages:

[0010] The display panel provided in this application includes a stacked image display panel and a light control panel. The image display panel is used to display images, and the light control panel is used to control the amount of light entering the image display panel. The light control panel includes multiple first signal lines arranged along a first direction. By setting the first signal lines as zigzag lines, the first signal lines include alternating peaks and troughs arranged along a second direction. The first and second directions intersect, and both the first and second directions are parallel to the plane of the display panel. Furthermore, in two adjacent first signal lines, the peak of one first signal line corresponds to the trough of the other first signal line. Along the first direction, the trough in a first signal line corresponds to the peak in an adjacent first signal line, and the closest point between them will approximately form a dark area. The peak in the adjacent first signal line corresponds to the trough in the next adjacent first signal line, and the furthest point between them will approximately form a bright area. Similarly, the interval between two adjacent bright areas and two dark areas along the first direction can be effectively increased, and the repetition frequency of each bright area and each dark area along the first direction can be significantly reduced, thereby reducing or eliminating the moiré pattern phenomenon generated when the light control panel and the image display panel are stacked, and improving the display effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A partial cross-sectional structural diagram of a display panel provided in an embodiment of this application;

[0013] Figure 2 A partial top view of the light-shielding matrix of an image display panel in a display panel provided in an embodiment of this application;

[0014] Figure 3 This is a partial schematic diagram of the grid lines and data lines of the light control panel in a conventional stacked display panel;

[0015] Figure 4 This is a schematic diagram showing the moiré pattern generated when an image display panel and a light control unit are stacked in an existing stacked display panel.

[0016] Figure 5 This application provides a schematic diagram of a partial arrangement of signal lines in a light control panel of a display panel.

[0017] Figure 6This is a schematic diagram showing the correspondence between a light control unit, a pixel unit, and signal lines.

[0018] Figure 7 This is a schematic diagram illustrating another correspondence between a light control unit, pixel units, and signal lines;

[0019] Figure 8 This is a schematic diagram illustrating another correspondence between a light control unit and signal lines;

[0020] Figure 9 This is a partial schematic diagram of the signal lines of the light control panel in another display panel provided in an embodiment of this application;

[0021] Figure 10 A partial schematic diagram of the signal lines of the light control panel in another display panel provided in an embodiment of this application;

[0022] Figure 11 This is a schematic diagram showing the internal structure of a light control unit and its correspondence with signal lines.

[0023] Figure 12 for Figure 11 The diagram shows the correspondence between thin-film transistors and signal lines in the light control unit.

[0024] Figure 13 for Figure 11 The diagram shows the correspondence between the light control unit, pixel unit, and signal line.

[0025] Figure 14 This is a schematic diagram illustrating another correspondence between a light control unit and a signal line.

[0026] Figure 15 This is a top view of a display device provided in an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0029] Figure 1 This illustration shows a partial cross-sectional structural diagram of a display panel according to an embodiment of this application, as shown below. Figure 1 As shown, the display panel provided in this application embodiment includes an image display panel 10 and a light control panel 20 stacked together. That is, the image display panel 10 and the light control panel 20 are stacked together along the thickness direction Z of the display panel, and the image display panel 10 is located on the light-emitting side of the display panel.

[0030] The image display panel 10 is primarily used for displaying images. Specifically, the image display panel 10 may include a first array substrate 11 and a first opposing substrate 12 disposed opposite each other along the thickness direction Z of the display panel, and a first liquid crystal layer 13 located between the first array substrate 11 and the first opposing substrate 12. The first array substrate 11 may be a substrate for setting up driving circuits, signal lines, thin-film transistors, and other structures. The pixel electrodes and common electrodes of the first liquid crystal layer 13 may both be disposed on the first array substrate 11, or the pixel electrodes may be disposed on the first array substrate 11 and the common electrodes may be disposed on the first opposing substrate 12, so that the electric field between the pixel electrodes and the common electrodes can cause the liquid crystal molecules in the first liquid crystal layer 13 to deflect. The first opposing substrate 12 can be understood as a color filter substrate, and a color resist layer 121 and a light-shielding matrix 122 are disposed on the side of the first opposing substrate 12 facing the first array substrate 11. Figure 2 A partial top view of the light-shielding matrix 122 in the image display panel 10 is further shown, combined with... Figure 1 and Figure 2 As can be seen, the light-shielding matrix 122 is used to define multiple pixel units Px and prevent color crosstalk between adjacent pixel units Px. The color resist layer 121 includes multiple color resist blocks of different colors, which are located in the cutout area of ​​the light-shielding matrix 122 to achieve color display. For example, each pixel unit Px includes three sub-pixel units: a red sub-pixel, a green sub-pixel, and a blue sub-pixel. The red sub-pixel, green sub-pixel, and blue sub-pixel correspond to the red color resist block, green color resist block, and blue color resist block in the color resist layer 121 of the first opposing substrate 12, respectively.

[0031] The light control panel 20 is mainly used for dimming control, that is, controlling the amount of light entering the image display panel 10. The image display panel 10 and the light control panel 20 form a stacked display panel. Specifically, the light control panel 20 may include a second array substrate 21 and a second opposing substrate 22 disposed opposite to each other along the thickness direction Z of the display panel, and a second liquid crystal layer 23 located between the second array substrate 21 and the second opposing substrate 22. Similar to the first array substrate 11, the second array substrate 21 can be a substrate for setting up driving circuits, signal lines, thin film transistors, and other structures. The signal lines on the second array substrate 21 include gate lines GL and data lines SL. The pixel electrodes and common electrodes of the second liquid crystal layer 23 may both be disposed on the first array substrate 11, or the pixel electrodes may be disposed on the first array substrate 11 and the common electrode may be disposed on the first opposing substrate 12, so that the electric field between the pixel electrodes and the common electrode can cause the liquid crystal molecules in the second liquid crystal layer 23 to deflect. The second opposing substrate 22 may have a higher light transmittance than the first opposing substrate 21. The light control panel 20 may include multiple light control units, each light control unit including at least one thin-film transistor and a pixel electrode corresponding to the thin-film transistor, so as to control the degree of deflection of liquid crystal molecules in the corresponding area by controlling the pixel electrode, thereby adjusting the amount of light transmitted through the light control unit.

[0032] like Figure 1 As shown, the display panel may also include a brightness enhancement film layer 31 located on the side of the light control panel 20 opposite to the image display panel 10, a first adhesive layer 32 and a first polarizer 33 located between the light control panel 20 and the image display panel 10, and a second polarizer 34, a second adhesive layer 35 and a cover plate 36 located on the side of the image display panel 10 opposite to the light control panel 20.

[0033] In operation, the light emitted from the backlight module first enters the light control panel 20. The gate lines GL and data lines SL on the second array substrate 21 provide driving signals to the corresponding light control units, controlling the deflection degree of the liquid crystal molecules corresponding to the light control units, thereby adjusting the amount of light passing through the light control units. After being dimmed by the light control panel 20, the light exits from the second opposing substrate 22 and enters the image display panel 10. The electric field formed between the pixel electrodes and the common electrode on the first array substrate 11 controls the deflection degree of the liquid crystal molecules in the first liquid crystal layer 13. After passing through the first liquid crystal layer 13, the light is filtered by the color resist layer 121 on the first opposing substrate 12 to achieve color image display. Finally, the light exits from the side of the first opposing substrate 12 away from the first array substrate 11 (i.e., the light-emitting side of the display panel). In this way, by performing pixel-level fine dimming of the backlight through the light control panel 20, the brightness in dark states can be reduced to the maximum extent, making the black states of the image display panel 10 even darker, thereby achieving higher dynamic contrast and significantly improving display quality.

[0034] However, currently, stacked display panels are prone to exhibiting moiré patterns visible to the human eye, affecting their display quality. This is because, combined with... Figures 2-4 As shown, Figure 3 This diagram shows a partial distribution of the grid lines GL and data lines SL of the light control panel 20 in a conventional stacked display panel. Figure 4 This diagram illustrates moiré patterns generated when an image display panel 10 and a light control unit 20 are stacked in a conventional stacked display panel. It is understood that in the conventional stacked display panel, the image display panel 10 includes a grid-like light-shielding matrix 122, which defines multiple pixel units Px. The light control panel 20 includes a grid-like signal line (gate line GL and data line SL), which intersect to define multiple light control units Ox. The pixel units Px of the image display panel 10 and the light control units Ox of the light control panel 20 are correspondingly arranged in the thickness direction Z of the display panel. One light control unit Ox can correspond to one or more pixel units Px. When the image display panel 10 and the light control panel 20 are stacked... After being stacked, the periodic grid structure of the light-shielding matrix 122 in the image display panel 10 and the periodic grid structure of the signal lines in the light control panel 20 are spatially superimposed. Since the size (period) of the periodic grid structure of the light-shielding matrix 122 in the image display panel 10 and the periodic grid structure of the signal lines in the light control panel 20 may differ, and there is an unavoidable alignment deviation when the two panels are bonded, the two sets of periodic grid structures are prone to producing alternating bright and dark interference fringes (alternating bright area D1 and dark area D2), i.e., moiré patterns. Moiré patterns are the visual result of interference between two lines or two objects at a constant angle and frequency. Moiré patterns can be recognized by the human eye and seriously affect the display quality of the display panel.

[0035] Furthermore, combined Figures 2-4 As can be seen, since the grating lines GL and data lines SL of the light control panel 20 in the existing stacked display panel are both straight lines, the spacing between two adjacent grating lines GL is the period of the interference fringes in the direction of the grating line GL arrangement. Similarly, the spacing between two adjacent data lines SL is the period of the interference fringes in the direction of the data line SL arrangement.

[0036] Therefore, this application embodiment improves the routing of signal lines in the light control panel 20 to effectively reduce or eliminate moiré patterns and improve display performance.

[0037] Figure 5 This illustration shows a partial arrangement of signal lines in a light control panel 20 of a display panel according to an embodiment of this application. Figure 5As shown, the light control panel 20 includes multiple first signal lines S1 arranged along the first direction X. The first signal lines S1 are zigzag lines. The first signal lines S1 include peaks B1 and troughs B2 arranged continuously and alternately along the second direction Y. The first direction X and the second direction Y intersect, and both the first direction X and the second direction Y are parallel to the plane where the display panel is located.

[0038] It should be noted that the first signal line S1 can be the grid line GL in the light control panel 20. Figure 5 Taking the first signal line S1 as an example of the gate line GL in the light control panel 20, when the first signal line S1 is the gate line GL in the light control panel 20, the data line SL in the light control panel 20 can be a straight line or a broken line. Similarly, the first signal line S1 can also be the data line SL in the light control panel 20. When the first signal line S1 is the data line SL in the light control panel 20, the gate line GL in the light control panel 20 can be a straight line or a broken line. The following explanation continues with the example of the first signal line S1 being the gate line GL in the light control panel 20. The example of the first signal line S1 being the data line SL in the light control panel 20 can be used as a reference.

[0039] In the embodiments of this application, such as Figure 5 As shown, in two adjacent first signal lines S1, the peak B1 of one first signal line S1 is set to correspond to the trough B2 of the other first signal line S1. That is, the peak B1 of one first signal line S1 and the trough B2 of the adjacent first signal line S1 are set to correspond along the first direction X. In other words, the bending directions of the two adjacent first signal lines S1 are opposite.

[0040] With this setting, such as Figure 5 As shown, for four first signal lines S1 (specifically, gate lines GL1-GL4) that are sequentially adjacent along the first direction X, the trough B2 of the first first signal line S1 (gate line GL1) and the peak B1 of the second first signal line S1 (gate line GL2) are correspondingly set along the first direction X, and the closest point between them will approximately form a dark area D2; the peak B1 of the second first signal line S1 (gate line GL2) and the trough B2 of the third first signal line S1 (gate line GL3) are correspondingly set along the first direction X, and the farthest point between them will approximately form a bright area. D1; The trough B2 of the third first signal line S1 (gate line GL3) and the peak B1 of the fourth first signal line S1 (gate line GL4) are set correspondingly along the first direction X. The closest point between them will approximately form a dark area D1, and so on. Compared with the case where the first signal line S1 is a straight line, it can effectively increase the interval between two adjacent dark areas D2 along the first direction X. Similarly, it will also increase the interval between two adjacent bright areas D1 along the first direction X, thereby significantly reducing the repetition frequency of each bright area D1 and each dark area D2 along the first direction X.

[0041] In other words, the display panel provided in this application embodiment, by setting the first signal line S1 arranged along the first direction X in its light control panel 20 as a zigzag line, the first signal line S1 includes peaks B1 and troughs B2 continuously and alternately arranged along the second direction Y, and in two adjacent first signal lines S1, the peak B1 of one first signal line S1 is correspondingly set with the trough B2 of the other first signal line S1, can effectively increase the interval between two adjacent bright areas D1 and two dark areas D2 along the first direction X, significantly reduce the repetition frequency of each bright area D1 and each dark area D2 along the first direction X, thereby reducing or eliminating the moiré pattern phenomenon generated when the light control panel 20 and the image display panel 10 are stacked, and improving the display effect.

[0042] It should be noted that the embodiments of this application do not specifically limit the height of the peak B1 and the height (i.e., the bending amplitude) of the trough B2 in the first signal line S1. The height of the peak B1 and the height of the trough B2 in a first signal line S1 can be the same or different; the height of the peak B1 (or the height of the trough B2) of two adjacent first signal lines S1 can be the same or different. As long as the peak B1 of one first signal line S1 corresponds to the trough B2 of the other first signal line S1, that is, the outward protrusion of one first signal line S1 corresponds to the inward concavity of the adjacent first signal line S1 along the first direction X, the interval between two adjacent bright areas D1 and two dark areas D2 along the first direction X can be effectively increased, the repetition frequency of each bright area D1 and each dark area D2 along the first direction X can be significantly reduced, and the moiré pattern phenomenon generated when the light control panel 20 and the image display panel 10 are stacked can be alleviated or eliminated.

[0043] Optional, such as Figure 5 As shown, two adjacent first signal lines S1 can be mirror-symmetrical about the second direction Y. That is, the broken line shape and bending amplitude of two adjacent first signal lines S1 along the first direction X are exactly the same, but the bending directions are opposite. The position of the peak B1 of one first signal line 24 corresponds exactly to the position of the trough B2 of the adjacent first signal line S1, and these two first signal lines S1 are mirror-symmetrical about a symmetry axis extending along the second direction Y. This setting can facilitate the routing design of the first signal lines S1 and reduce the complexity of the design of the first signal lines S1.

[0044] like Figure 2 As shown, the image display panel 10 includes multiple first light-shielding strips BM1 extending along a first direction X and multiple second light-shielding strips BM2 extending along a second direction Y. The multiple first light-shielding strips BM1 and the multiple second light-shielding strips BM2 intersect to define multiple pixel units Px; combined with Figure 5As shown, the light control panel 20 includes multiple light control units Ox, and one light control unit Ox can correspond to at least one pixel unit Px; and the first signal line S1 includes multiple first zigzag units U1 arranged continuously and periodically along the second direction Y. The first zigzag unit U1 includes a first zigzag segment U11 and a second zigzag segment U12 whose extension directions intersect. That is, the first zigzag segment U11 and the second zigzag segment U12 bend at the connection point to form a "V" or "inverted V" shaped first zigzag unit U1. Furthermore, along the second direction Y, the multiple first zigzag units U1 are connected end to end to form a periodically continuous zigzag trace.

[0045] It is understandable that, such as Figure 5 As shown, based on the fact that two adjacent first signal lines S1 can be mirror-symmetrical about the second direction Y, since each first signal line S1 includes multiple first zigzag units U1 arranged continuously and periodically along the second direction Y, the first zigzag units U1 in two adjacent first signal lines S1 are also mirror-symmetrical about the second direction Y. Therefore, two first zigzag units U1 in two adjacent first signal lines S1 that are mirror-symmetrical about the second direction Y can be set to correspond to one light control unit Ox. That is, in the direction perpendicular to the plane where the display panel is located, two first zigzag units U1 in two adjacent first signal lines S1 that are mirror-symmetrical about the second direction Y overlap with one light control unit Ox. Thus, each light control unit Ox corresponds to two first zigzag units U1 that are mirror-symmetrical about the second direction Y. That is, the routing pattern of the part of the first signal line S1 corresponding to each light control unit Ox is consistent, which helps to ensure the consistency of the light transmittance of each light control unit Ox in the light control panel 20, thereby ensuring the brightness uniformity of the display panel.

[0046] It is understandable that in the existing light control panel 20 of the stacked display panel, the gate line GL and the data line SL are both straight lines, and the gate line GL and the data line SL can intersect to define multiple light control units Ox. However, in this embodiment, although the first signal line S1 (such as the gate line GL) in the light control panel 20 is a zigzag line, the first signal line S1 (such as the gate line GL) is still correspondingly set with the light control unit Qx, thereby providing a driving signal to the thin film transistor in the light control unit Qx, so that the thin film transistor controls the electric field between the pixel electrode and the common electrode, thereby controlling the degree of deflection of the liquid crystal molecules corresponding to the light control unit in the second liquid crystal layer 23, and adjusting the amount of light transmitted through the light control unit. Furthermore, the first signal line S1 has a certain linewidth, and the area where the first signal line S1 overlaps with the light control unit Qx in the direction perpendicular to the plane of the display panel will inevitably block part of the backlight light, so that the light in the blocked area cannot pass through the light control unit Qx. Therefore, the specific setting of the first signal line S1 should minimize the impact on the transmittance of the light control unit Ox.

[0047] Further optional, such as Figure 5 As shown, in the first broken line unit U1, the first broken line segment U11 and the second broken line segment U12 can be mirror symmetrical about the first direction X. That is, the first broken line segment U11 and the second broken line segment U12 form a "V" or "inverted V" structure symmetrical about a symmetrical axis extending along the first direction X, which can further facilitate the routing design of the first signal line S1 and reduce the complexity of the design of the first signal line S1.

[0048] It is understandable that, based on the correspondence between two first polygonal line units U1 that are mirror-symmetrical about the second direction Y in two adjacent first signal lines S1 and one optical control unit Ox, the optical control unit Ox can be divided into two regions along the second direction Y. By designing the correspondence between one region of the optical control unit Ox and one first polygonal line unit U1, the correspondence between the other region of the optical control unit Ox and another first polygonal line unit U1 can be obtained based on the mirror-symmetrical relationship along the second direction Y. Furthermore, since the first polygonal line segment U11 and the second polygonal line segment U12 in the first polygonal line unit U1 are mirror-symmetrical about the first direction X, the region of the optical control unit Ox that is divided along the second direction Y can be further divided into two sub-regions along the first direction X. Thus, by designing the correspondence between one sub-region of the optical control unit Ox and the first polygonal line segment U11 (or the second polygonal line segment U12), the correspondence between the entire optical control unit Ox and the two first polygonal line units U1 that are mirror-symmetrical about the second direction Y can be obtained.

[0049] Figure 6 This diagram illustrates a correspondence between a light control unit Ox, a pixel unit Px, and signal lines. Figure 6As shown, a light control unit Ox includes four sub-regions F1 arranged in an array along the first direction X and the second direction Y. That is, the four sub-regions F1 in a light control unit Ox are arranged in a 2×2 array along the first direction X and the second direction Y. Two sub-regions F1 arranged along the second direction Y are located in the same row (as shown in the previous row), and the other two sub-regions F1 arranged along the second direction Y are located in another row (as shown in the next row). Furthermore, two sub-regions F1 in one row (as shown in the previous row) can correspond to a first broken line unit U1 in a first signal line S1, and two sub-regions F1 in another row (as shown in the next row) can correspond to a first broken line unit U1 in an adjacent first signal line S1. Therefore, not only is the routing pattern of the portion of the first signal line S1 corresponding to each light control unit Ox consistent, but also... This design helps ensure the consistency of the transmittance of each light control unit Ox in the light control panel 20, thereby ensuring the brightness uniformity of the display panel. Moreover, within the light control unit Ox, only the correspondence between one sub-region F1 and the first broken line segment U11 (or the second broken line segment U12) needs to be designed. Based on the mirror symmetry along the second direction Y and the mirror symmetry along the first direction X, the correspondence between other sub-regions F1 and the first broken line segment U11 (or the second broken line segment U12) can be obtained. This further facilitates the routing design of the first signal line S1 and reduces the complexity of the design of the first signal line S1. At the same time, the routing pattern of the first signal line S1 corresponding to each sub-region F1 within the light control unit Ox is also consistent, which can also ensure the consistency of the transmittance of each sub-region F1 within the light control unit Qx, thereby ensuring the brightness uniformity of the display panel.

[0050] Optionally, in some embodiments of this application, such as Figure 6 As shown, one light control unit Ox corresponds to 2n × 2n pixel units Px, that is, one light control unit Ox corresponds to 2n (even number) pixel units Px in the first direction X and 2n (even number) pixel units Px in the second direction Y, and the whole corresponds to 2n × 2n pixel units Px; therefore, any sub-region F1 of one light control unit Ox corresponds to n × n pixel units Px, that is, each sub-region F1 corresponds to n pixel units Px in the first direction X and n pixel units Px in the second direction Y, and the whole corresponds to n × n pixel units Px; n≥1, and n is an integer.

[0051] Among them, such as Figure 6As shown, each pixel unit Px includes multiple sub-pixel units Px1 of different colors. Specifically, each pixel unit Px may include three sub-pixel units Px1: red sub-pixel R, green sub-pixel G, and blue sub-pixel B. The red sub-pixel R, green sub-pixel G, and blue sub-pixel B correspond to the red color resist block, green color resist block, and blue color resist block in the color resist layer 121 of the first opposing substrate 12 in the image display panel 10, respectively.

[0052] In the case where a light control unit Ox corresponds to 2n×2n pixel units Px, and any sub-region F1 of a light control unit Ox corresponds to n×n pixel units Px, considering that two adjacent first signal lines S1 are mirror-symmetric about the second direction Y, and that in any first signal line S1, the first segment U11 and the second segment U12 of the first polygonal line unit U1 are mirror-symmetric about the first direction X, therefore, optionally, the lengths of the first segment U11 and the second segment U12 along the second direction Y in the first polygonal line unit U1 can be set to be no greater than n×p1, where p1 is the length of a pixel unit Px along the second direction Y. That is, the length L11 of the first broken line segment U11 along the second direction Y and the length L12 of the second broken line segment U12 along the second direction Y do not exceed the total length n×p1 of n pixel units Px in the second direction Y; at the same time, the lengths of the first broken line segment U11 and the second broken line segment U12 along the first direction X are not greater than (n / 2)×p2, where p2 is the length of one pixel unit Px along the first direction X, that is, the length W11 of the first broken line segment U11 along the first direction X and the length W12 of the second broken line segment U12 along the first direction X do not exceed the total length (n / 2)×p2 of (n / 2) pixel units Px in the first direction X.

[0053] It is understandable that, since any sub-region F1 of a light control unit Ox corresponds to n×n pixel units Px, the length L0 of any sub-region F1 of a light control unit Ox along the second direction Y is n×p1, and the length W0 of any sub-region F1 of a light control unit Ox along the first direction X is n×p2. The lengths of the first zigzag segment U11 along the second direction Y and along the first direction X determine the tilt and occlusion area of ​​the first zigzag segment U11. By setting the length L11 of the first zigzag segment U11 along the second direction Y to not exceed n×p1, it is possible to limit the length L11 of the first zigzag segment U11 along the second direction Y to not exceed the length L0 of a sub-region F1 of the corresponding light control unit Ox along the second direction Y. At the same time, setting the first zigzag segment U11... If the length W11 along the first direction X does not exceed (n / 2) × p2, then the length W11 of the first segment U11 along the first direction X can be limited to not exceeding half the length W0 of a sub-region F1 of the corresponding light control unit Ox along the first direction X. With this setting, the first segment U11 can be tilted relative to the first direction X and the second direction Y so that it forms a peak or trough with the second segment U12. This allows the first segment U11 to be distributed as evenly as possible within a sub-region F1 of the corresponding light control unit Ox, thereby making the transmittance of each pixel unit Px corresponding to the corresponding sub-region F1 basically the same, and the transmittance of each sub-pixel Px1 corresponding to the corresponding sub-region F1 also basically the same, thus ensuring the brightness uniformity of the display panel.

[0054] Similarly, the lengths of the second segment U12 along the second direction Y and along the first direction X determine the tilt and occlusion area of ​​the second segment U12. By setting the length L12 of the second segment U12 along the second direction Y to not exceed n×p1, the length L12 of the second segment U12 along the second direction Y can be limited to not exceeding the length L0 of a sub-region F1 of the corresponding light control unit Ox along the second direction Y. At the same time, by setting the length W12 of the second segment U12 along the first direction X to not exceed (n / 2)×p2, the length W12 of the second segment U12 along the first direction X can be limited to not exceeding The length W0 of a sub-region F1 of the corresponding light control unit Ox along the first direction X is half of the length of the sub-region F1. With this setting, the second segment U2 can be tilted relative to the first direction X and the second direction Y so as to form a peak or trough with the first segment U11. This allows the second segment U12 to be distributed as evenly as possible within a sub-region F1 of the corresponding light control unit Ox, thereby making the light transmittance of each pixel unit Px corresponding to the corresponding sub-region F1 basically the same, and the light transmittance of each sub-pixel Px1 corresponding to the corresponding sub-region F1 also basically the same, thus ensuring the brightness uniformity of the display panel.

[0055] For example, such as Figure 6As shown, one light control unit Ox corresponds to 4×4 pixel units Px, i.e., n=2. Any sub-region F1 of one light control unit Ox corresponds to 2×2 pixel units Px. Then, in the first polyline unit U1, the lengths of the first polyline segment U11 and the second polyline segment U12 along the second direction Y are both no greater than 2p1, and the lengths of the first polyline segment U11 and the second polyline segment U12 along the first direction X are both no greater than p2.

[0056] Figure 7 This diagram illustrates another correspondence between a light control unit Ox, a pixel unit Px, and signal lines, as shown below. Figure 7 As shown, one light control unit Ox corresponds to 2×2 pixel units Px, i.e., n=1. Any sub-region F1 of one light control unit Ox corresponds to one pixel unit Px. Then, in the first polyline unit U1, the lengths of the first polyline segment U11 and the second polyline segment U12 along the second direction Y are not greater than p1, and the lengths of the first polyline segment U11 and the second polyline segment U12 along the first direction X are not greater than (1 / 2)p2.

[0057] It is understandable that if a pixel unit Px is square, then the length p1 of a pixel unit Px along the second direction Y is equal to the length p2 of a pixel unit Px along the first direction X, i.e., p1 = p2. However, this application does not limit this.

[0058] It is also understandable that, since the first broken line segment U11 and the second broken line segment U12 are mirror symmetrical about the first direction X, the length L11 of the first broken line segment U11 along the second direction Y is equal to the length L12 of the second broken line segment U12 along the second direction Y, and the length W11 of the first broken line segment U11 along the first direction X is equal to the length W12 of the second broken line segment U12 along the first direction X.

[0059] Further optional, such as Figure 6As shown, a sub-region F1 of the light control unit Qx can further include four sub-regions C1 arranged in an array along the first direction X and the second direction Y. That is, a sub-region F1 includes two sub-regions C1 in the first direction X and two sub-regions C1 in the second direction Y, and the four sub-regions C1 are arranged in a 2×2 array along the first direction X and the second direction Y. It can be understood that the four sub-regions C1 of a sub-region F1 in the light control unit Qx are correspondingly set with the n×n pixel units Px corresponding to the sub-region F1. At this time, the orthographic projection of the first folded line segment U11 or the second folded line segment U12 corresponding to the sub-region F1 on the plane where the display panel is located can be set to overlap with the orthographic projection of the two diagonally opposite sub-regions C1 in the sub-region F1 on the plane where the display panel is located. That is to say, the first folded line segment U11 (or the second folded line segment U12) corresponding to a sub-region F1 of the light control unit Qx only overlaps with the two diagonally opposite sub-regions C1 in the sub-region F1, and does not overlap with the other two diagonally opposite sub-regions C1 in the sub-region F1. Furthermore, such as Figure 6 As shown, the first polyline segment U11 can pass through the geometric center of the corresponding sub-region F1, and similarly, the second polyline segment U12 can pass through the geometric center of the corresponding sub-region F1.

[0060] This configuration allows the first segment U11 (or the second segment U12) corresponding to a sub-region F1 of the light control unit Qx to be tilted relative to the first direction X and the second direction Y, so as to form peaks or troughs. This ensures that the transmittance of the two diagonally opposite sub-regions C1 within a sub-region F1 is affected to the same extent (i.e., both are partially blocked by the first segment U11 or the second segment U12), while the transmittance of the other two diagonally opposite sub-regions C1 remains unaffected (i.e., not blocked by the first segment U11 or the second segment U12). On the one hand, this minimizes the impact of the tilted first segment U11 (or the second segment U12) on the transmittance of sub-pixel units Px1 of different colors within a sub-region F1. On the other hand, it maintains a consistent degree of impact on the transmittance of sub-pixel units Px1 of different colors within a sub-region F1, avoiding color deviations caused by inconsistent occlusion, thereby ensuring the uniformity and accuracy of the colors displayed on the display panel.

[0061] Alternatively, in some embodiments of this application, a light control unit Ox may also correspond to (2m+1) × (2m+1) pixel units Px, that is, a light control unit Ox corresponds to (2m+1) (odd number) pixel units Px in the first direction X and (2m+1) (odd number) pixel units Px in the second direction Y, and the whole corresponds to (2m+1) × (2m+1) pixel units Px; thus, any sub-region F1 of a light control unit Ox corresponds to [(2m+1) / 2] × [(2m+1) / 2] pixel units Px, that is, each sub-region F1 corresponds to (2m+1) / 2 pixel units Px in the first direction X and (2m+1) / 2 pixel units Px in the second direction Y, and the whole corresponds to [(2m+1) / 2] × [(2m+1) / 2] pixel units Px; m≥1, and m is an integer.

[0062] In this case, refer to Figure 8 As shown, Figure 8A schematic diagram showing the correspondence between a light control unit Ox and a signal line is provided. Since any sub-region F1 of a light control unit Ox corresponds to [(2m+1) / 2] × [(2m+1) / 2] pixel units Px, the length L0 of any sub-region F1 of a light control unit Ox along the second direction Y is [(2m+1) / 2] × p1, and the length W0 of any sub-region F1 of a light control unit Ox along the first direction X is [(2m+1) / 2] × p2. If it is to limit the length L11 of the first broken line segment U11 along the second direction Y to not exceed the length L0 of the corresponding sub-region F1 of the light control unit Ox along the second direction Y, then it is necessary to set the length L11 of the first broken line segment U11 along the second direction Y to not be greater than [(2m+1) / 2] × p1. To limit the length W11 of the first segment U11 along the first direction X to no more than half the length W0 of a sub-region F1 of the corresponding light control unit Ox along the first direction X, the length L12 of the first segment U11 along the first direction X must be set to no greater than [(2m+1) / 4]×p2. Similarly, to limit the length L12 of the second segment U12 along the second direction Y to no more than the length L0 of a sub-region F1 of the corresponding light control unit Ox along the second direction Y, the length L12 of the second segment U12 along the second direction Y must be set to no greater than [(2m+1) / 2]. ×p1, if we want to limit the length W12 of the second segment U12 along the second direction Y to not exceed half the length W0 of a sub-region F1 of the corresponding light control unit Ox along the first direction X, then we need to set the length W12 of the second segment U12 along the second direction Y to not be greater than [(2m+1) / 4]×p2; that is, in the first segment unit U1, the lengths of the first segment U11 and the second segment U12 along the second direction Y are both not greater than [(2m+1) / 2]×p1, and the lengths of the first segment U11 and the second segment U12 along the first direction are both not greater than [(2m+1) / 2]×p1. [2m+1) / 4]×p2; With this setting, the first segment U11 and the second segment U12 can be tilted relative to the first direction X and the second direction Y to form peaks or troughs. This allows the first segment U11 and the second segment U12 to be distributed as evenly as possible within a sub-region F1 of the corresponding light control unit Ox. Consequently, the transmittance of each pixel unit Px corresponding to the corresponding sub-region F1 is basically the same, and the transmittance of each sub-pixel Px1 corresponding to the corresponding sub-region F1 is also basically the same, thereby ensuring the brightness uniformity of the display panel.

[0063] Further optional, such as Figure 8As shown, a sub-region F1 of the light control unit Qx includes four sub-regions C1 arranged in an array along the first direction X and the second direction Y. That is, a sub-region F1 includes two sub-regions C1 in the first direction X and two sub-regions C1 in the second direction Y. The four sub-regions C1 are arranged in a 2×2 array along the first direction X and the second direction Y. It can be understood that the four sub-regions C1 of a sub-region F1 in the light control unit Qx are correspondingly set with [(2m+1) / 2]×[(2m+1) / 2] pixel units Px. At this time, the orthographic projection of the first folded line segment U11 or the second folded line segment U12 corresponding to the sub-region F1 on the plane where the display panel is located can be set to overlap with the orthographic projection of the two diagonally opposite sub-regions C1 in the sub-region F1 on the plane where the display panel is located. That is to say, the first folded line segment U11 (or the second folded line segment U12) corresponding to a sub-region F1 of the light control unit Qx only overlaps with the two diagonally opposite sub-regions C1 in the sub-region F1. And it does not overlap with the other two diagonal subregions C1 in this subregion F1. Furthermore, as... Figure 8 As shown, the first polyline segment U11 can pass through the geometric center of the corresponding sub-region F1, and similarly, the second polyline segment U12 can pass through the geometric center of the corresponding sub-region F1.

[0064] This configuration allows the first segment U11 (or the second segment U12) corresponding to a sub-region F1 of the light control unit Qx to be tilted relative to the first direction X and the second direction Y, so as to form peaks or troughs. This ensures that the transmittance of the two diagonally opposite sub-regions C1 within a sub-region F1 is affected to the same extent (i.e., both are partially blocked by the first segment U11 or the second segment U12), while the transmittance of the other two diagonally opposite sub-regions C1 remains unaffected (i.e., not blocked by the first segment U11 or the second segment U12). On the one hand, this minimizes the impact of the tilted first segment U11 (or the second segment U12) on the transmittance of sub-pixel units Px1 of different colors within a sub-region F1. On the other hand, it maintains a consistent degree of impact on the transmittance of sub-pixel units Px1 of different colors within a sub-region F1, avoiding color deviations caused by inconsistent occlusion, thereby ensuring the uniformity and accuracy of the colors displayed on the display panel.

[0065] Depend on Figures 6-8It can be seen that, regardless of whether a light control unit Ox corresponds to 2n×2n pixel units Px or (2m+1)×(2m+1) pixel units Px, the light control unit Qx can be divided into four sub-regions F1 arranged in an array along the first direction X and the second direction Y. One sub-region F1 corresponds to a first broken line segment U11 (or a second broken line segment U12), and the length of the corresponding first broken line segment U11 (or second broken line segment U12) along the first direction X does not exceed the length of the sub-region F1 along the first direction X, and the length of the corresponding first broken line segment U11 (or second broken line segment U12) along the second direction Y does not exceed the length of the sub-region F1 along the second direction Y. Furthermore, a sub-region F1 can be further divided into four sub-regions C1 arranged in an array along the first direction X and the second direction Y. The first broken line segment U11 (or second broken line segment U12) corresponding to the sub-region F1 overlaps with the two diagonally opposite sub-regions C2 in the sub-region F1 in a direction perpendicular to the plane where the display panel is located.

[0066] Although the foregoing embodiments are mainly described using the example of the first signal line S1 being a gate line GL in the light control panel 20, the first signal line S1 can be either a gate line GL in the light control panel 20 or a data line SL in the light control panel 20. Optionally, based on any of the above embodiments, in some embodiments of this application, such as... Figure 5 , Figure 9 and Figure 10 As shown, Figure 9 and Figure 10 The diagram shows a partial arrangement of signal lines in the light control panel 20 of two other display panels provided in this application embodiment. It can be seen that the light control panel 20 also includes multiple second signal lines S2 arranged along the second direction Y. The second signal lines S2 are also zigzag lines. The second signal lines S2 include peaks B1 and valleys B2 that are continuously and alternately arranged along the first direction Y. That is, the gate line GL and the data line SL in the light control panel 20 are both zigzag lines, and both include peaks B1 and valleys B2 that are continuously and alternately arranged.

[0067] Based on this, optional, such as Figure 5 As shown, the first signal line S1 is a gate line GL, and the second signal line S2 is a data line SL. Furthermore, in two adjacent first signal lines S1 (gate lines GL), the peak B1 of one first signal line S1 (gate line GL) corresponds to the trough B2 of the other first signal line S1 (gate line GL), that is, the bending directions of the two adjacent first signal lines S1 (gate lines GL) are opposite. At the same time, in two adjacent second signal lines S2 (data lines SL), the peak B1 of one second signal line S2 (data line SL) corresponds to the trough B2 of the other second signal line S2 (data line SL), that is, the bending directions of the two adjacent second signal lines S2 (data lines SL) are also opposite.

[0068] Another option, such as Figure 9 As shown, the first signal line S1 is a gate line GL, and the second signal line S2 is a data line SL. Furthermore, in two adjacent first signal lines S1 (gate lines GL), the peak B1 of one first signal line S1 (gate line GL) corresponds to the trough B2 of the other first signal line S1 (gate line GL), meaning that the bending directions of the two adjacent first signal lines S1 (gate lines GL) are opposite. At the same time, in two adjacent second signal lines S2 (data lines SL), the peak B1 of one second signal line S2 (data line SL) corresponds to the peak B1 of the other second signal line S2 (data line SL), and the trough B2 of one second signal line S2 (data line SL) corresponds to the trough B2 of the other second signal line S2 (data line SL), meaning that the bending directions of the two adjacent second signal lines S2 (data lines SL) are the same.

[0069] Another option, such as Figure 10 As shown, the first signal line S1 is a data line SL, and the second signal line S2 is a gate line GL. Furthermore, in two adjacent first signal lines S1 (data lines SL), the peak B1 of one first signal line S1 (data line SL) corresponds to the trough B2 of the other first signal line S1 (data line SL), meaning that the bending directions of the two adjacent first signal lines S1 (data lines SL) are opposite. At the same time, in two adjacent second signal lines S2 (gate lines GL), the peak B1 of one second signal line S2 (gate line GL) corresponds to the peak B1 of the other second signal line S2 (gate line GL), and the trough B2 of one second signal line S2 (gate line GL) corresponds to the trough B2 of the other second signal line S2 (gate line GL), meaning that the bending directions of the two adjacent second signal lines S2 (gate lines GL) are the same.

[0070] The inventors discovered that after the image display panel 10 and the light control panel 20 of the stacked display panel are stacked, the moiré pattern includes not only the aforementioned short-period interference patterns, but also color patterns caused by the difference in the openings of different color sub-pixel units after stacking, and long-period brightness patterns caused by misalignment. Table 1 below lists... Figure 5 , Figure 9 as well as Figure 10 The table shows the simulated interference fringe, color fringe, and brightness fringe of the corresponding stacked display panels under three signal line arrangement methods for the light control panel 20. A smaller interference fringe value indicates a milder interference, a larger color fringe value indicates a greater visual color difference, and a larger brightness fringe value indicates a greater visual brightness difference. As shown in Table 1, Figure 5 and Figure 9 In this process, the bending directions of two adjacent gate lines GL are opposite, while the bending directions of two adjacent data lines SL can be the same or different, both of which can more effectively improve interference patterns. Figure 10In the above, the bending directions of two adjacent data lines SL are opposite, while the bending directions of two adjacent gate lines GL are the same, resulting in a relatively weak improvement in interference patterns. Furthermore, the color and brightness patterns are basically the same under these three signal line arrangement methods of the light control panel 20.

[0071] Table 1 Figure 5 , Figure 9 as well as Figure 10 The simulation results of interference patterns, color patterns, and brightness patterns of the corresponding stacked display panels under the three signal line arrangement methods of the light control panels shown.

[0072]

[0073] Furthermore, considering the reasonable arrangement of thin-film transistors, vias, etc. in the light control panel 20, Figure 5 The case shown, in which the bending directions of two adjacent first signal lines S1 (gate lines GL) are opposite, and the bending directions of two adjacent second signal lines S2 (data lines SL) are also opposite, is a more preferred configuration. The following explanation will continue based on this configuration.

[0074] Optional, such as Figure 5 As shown, not only are two adjacent first signal lines S1 (gate lines GL) mirror-symmetrical about the second direction Y, but two adjacent second signal lines S2 (data lines SL) are also mirror-symmetrical about the first direction X. That is, the shape and bending amplitude of the broken lines of two adjacent first signal lines S1 (gate lines GL) along the first direction X are exactly the same, but the bending directions are opposite. Similarly, the shape and bending amplitude of the broken lines of two adjacent second signal lines S2 (data lines SL) along the second direction Y are exactly the same, but the bending directions are opposite. This arrangement facilitates the routing design of both the first signal lines S1 (gate lines GL) and the second signal lines S2 (data lines SL).

[0075] As is known from the foregoing, such as Figure 2 As shown, the image display panel 10 includes multiple first light-shielding strips BM1 extending along a first direction X and multiple second light-shielding strips BM2 extending along a second direction Y. The multiple first light-shielding strips BM1 and the multiple second light-shielding strips BM2 intersect to define multiple pixel units Px; combined with Figure 5As shown, the light control panel 20 includes multiple light control units Ox, and each light control unit Ox can correspond to at least one pixel unit Px; and the first signal line S1 (gate line GL) includes multiple first zigzag units U1 arranged continuously and periodically along the second direction Y. The first zigzag unit U1 includes a first zigzag segment U11 and a second zigzag segment U12 that intersect in the extension direction. Two first zigzag units U1 that are mirror-symmetrical about the second direction Y in two adjacent first signal lines S1 (gate lines GL) are correspondingly set to one light control unit Ox; at the same time, the second signal line S2 (data line SL) includes multiple second zigzag units U2 arranged continuously and periodically along the first direction X. The second zigzag unit U2 includes a third zigzag segment U21 and a fourth zigzag segment U22 that intersect in the extension direction. Two second zigzag units U2 that are mirror-symmetrical about the first direction X in two adjacent second signal lines S2 (data lines SL) are correspondingly set to one light control unit Ox.

[0076] Similar to the first signal line S1 (gate line GL) and the second signal line S2 (data line SL), the third segment U21 and the fourth segment U22 bend at the connection point to form a "V" or "inverted V" shaped second segment unit U2. Furthermore, along the first direction X, multiple second segment units U2 are connected end to end to form a periodic continuous segmented trace.

[0077] Furthermore, similar to the first signal line S1 (gate line GL), based on the mirror symmetry of two adjacent second signal lines S2 (data lines SL) about the first direction X, since each second signal line S2 (data line SL) includes multiple second broken line units U2 arranged continuously and periodically in the first direction X, the second broken line units U2 in two adjacent second signal lines S2 (data lines SL) are also mirror symmetric about the second direction Y. Therefore, the two second broken line units U2 that are mirror symmetric about the first direction X in two adjacent second signal lines S2 (data lines SL) are correspondingly set with one light control unit Ox.

[0078] With this configuration, each light control unit Ox corresponds to two first zigzag units U1 that are mirror-symmetrical about the second direction Y, and two second zigzag units U2 that are mirror-symmetrical about the first direction X. That is, the routing pattern of the first signal line S1 (gate line GL) corresponding to each light control unit Ox is consistent, and the routing pattern of the corresponding second signal line S2 (data line SL) is consistent. This helps to ensure the consistency of the light transmittance of each light control unit Ox in the light control panel 20, thereby ensuring the brightness uniformity of the display panel.

[0079] Further optional, such as Figure 5As shown, in the first segmented line unit U1, which is similar to the first signal line S1 (gate line GL), the first segmented line U11 and the second segmented line U12 are mirror-symmetrical about the first direction X to further facilitate the routing design of the first signal line S1. In the second segmented line unit U2, which is similar to the second signal line S2 (data line SL), the third segmented line U21 and the fourth segmented line U22 can also be mirror-symmetrical about the second direction Y to further facilitate the routing design of the second signal line S2.

[0080] It is understandable that, such as Figure 6 As shown, a light control unit Ox is configured to correspond to two first polygonal line units U1 that are mirror-symmetrical about the second direction Y in two adjacent first signal lines S1 (gate lines GL), and to correspond to two second polygonal line units U2 that are mirror-symmetrical about the first direction X in two adjacent second signal lines S2 (data lines SL). Simultaneously, the first polygonal line segment U11 and the second polygonal line segment U12 in the first polygonal line unit U1 of the first signal line S1 (gate line GL) are mirror-symmetrical about the first direction X, and the second polygonal line unit U2 in the second signal line S2 (data line SL) is also mirror-symmetrical about the first direction X. In section 2, the third segment U21 and the fourth segment U22 are mirror-symmetric about the second direction Y. Therefore, the optical control unit Ox can be divided into four sub-regions F1 arranged along the first direction X and the second direction Y. The two sub-regions F1 arranged along the second direction Y are in the same row (as shown in the previous row), and the other two sub-regions F1 arranged along the second direction Y are in another row (as shown in the next row). The two sub-regions F1 arranged along the first direction X are in the same column (as shown in the left column), and the other two sub-regions F1 arranged along the first direction X are in another column (as shown in the right column). (Columns); Thus, the two sub-regions F1 in one row are correspondingly set to a first segmented line unit U1 in a first signal line S1 (gate line GL), the two sub-regions F1 in another row are correspondingly set to a first segmented line unit U1 in an adjacent first signal line S1 (gate line GL), and the two sub-regions F1 in one column are correspondingly set to a second segmented line unit U2 in a second signal line S2 (data line SL), the two sub-regions F1 in another column are correspondingly set to a second segmented line unit U2 in an adjacent second signal line S2 (data line SL). U2 is set accordingly; then, by designing the correspondence between a sub-region F1 of the optical control unit Ox and the first segment U11 (or the second segment U12) and the third segment U21 (or the fourth segment U22), the correspondence between the entire optical control unit Ox and the two first segment units U1 that are mirror-symmetrical about the second direction Y and the two second segment units U2 that are mirror-symmetrical about the first direction X can be obtained, that is, the correspondence between the entire optical control unit Ox and the first signal line S1 (gate line GL) and the second signal line S2 (data line SL).

[0081] Furthermore, the above configuration ensures that not only the routing pattern of the first signal line S1 (gate line GL) corresponding to each light control unit Ox is consistent, but also the routing pattern of the corresponding second signal line S2 (data line SL) is consistent. This helps to ensure the consistency of the light transmittance of each light control unit Ox in the light control panel 20, thereby ensuring the brightness uniformity of the display panel. Moreover, the routing pattern of the first signal line S1 (gate line GL) corresponding to each sub-region F1 inside the light control unit Ox is also consistent, as is the routing pattern of the corresponding second signal line S2 (data line SL). This also ensures the consistency of the light transmittance of each sub-region F1 inside the light control unit Qx, thereby ensuring the brightness uniformity of the display panel.

[0082] Further optional, such as Figure 6 As shown, a sub-region F1 of the light control unit Qx can further include four sub-regions C1 arranged in an array along the first direction X and the second direction Y. That is, a sub-region F1 includes two sub-regions C1 in the first direction X and two sub-regions C1 in the second direction Y, and the four sub-regions C1 are arranged in a 2×2 array along the first direction X and the second direction Y. In this case, the orthographic projection of the first broken line segment U11 or the second broken line segment U12 corresponding to the sub-region F1 on the plane where the display panel is located can be set to overlap with the orthographic projection of the two diagonally opposite sub-regions C1 in the sub-region F1 on the plane where the display panel is located. Similarly, the orthographic projection of the third segment U21 or the fourth segment U22 corresponding to the sub-region F1 on the plane of the display panel can be set to overlap with the orthographic projection of the other two diagonal sub-regions C1 in the sub-region F1 on the plane of the display panel; that is, the first segment U11 (or the second segment U12) corresponding to a sub-region F1 of the light control unit Qx overlaps with the two diagonal sub-regions C1 in the sub-region F1, while the third segment U21 (or the fourth segment U22) corresponding to the sub-region F1 overlaps with the other two diagonal sub-regions C1 in the sub-region F1.

[0083] This configuration allows the first segment U11 (or the second segment U12) corresponding to a sub-region F1 of the light control unit Qx to be tilted relative to the first direction X and the second direction Y, so as to form a peak or trough. This ensures that the transmittance of the two diagonally opposite sub-regions C1 within a sub-region F1 is affected to the same extent (i.e., both are partially blocked by the first segment U11 or the second segment U12). Similarly, the third segment U21 (or the fourth segment U22) corresponding to a sub-region F1 of the light control unit Qx can be tilted relative to the first direction X and the second direction Y, so as to form a peak or trough. This ensures that the transmittance of the other two diagonally opposite sub-regions C1 within a sub-region F1 is affected to the same extent (i.e., both are partially blocked by the first segment U11 or the second segment U12). The light transmittance of C1 is also affected to the same extent (i.e., it is partially blocked by the third segment U21 or the fourth segment U22). Thus, while minimizing the impact of the tilted first segment U11 (or the second segment U12) on the light transmittance of sub-pixel units Px1 of different colors in a sub-region F1, and minimizing the impact of the tilted third segment U21 (or the fourth segment U22) on the light transmittance of sub-pixel units Px1 of different colors in a sub-region F1, the degree of influence on the light transmittance of sub-pixel units Px1 of different colors in a sub-region F1 is kept as consistent as possible. This avoids color deviation caused by inconsistent blocking, thereby ensuring the uniformity and accuracy of the colors displayed on the display panel.

[0084] Figure 11 The diagram illustrates the internal structure of a light control unit Ox and its correspondence with signal lines. Figure 12 It shows Figure 11 The diagram shows the correspondence between the thin-film transistors and signal lines in the light control unit Ox. Figure 13 It shows Figure 11 The diagram showing the correspondence between the light control unit Ox, the pixel unit Px, and the signal lines, combined with... Figures 11-13 as well as Figure 6As shown, the light control unit Ox includes at least one thin-film transistor (TFT) and a pixel electrode PE corresponding to the TFT. With the first signal line S1 being a gate line GL and the second signal line S2 being a data line SL, the gate of the TFT is electrically connected to the first signal line S1 (gate line GL), the first electrode of the TFT is electrically connected to the second signal line S2 (data line SL), and the second electrode of the TFT is electrically connected to the corresponding pixel electrode PE. Therefore, when a first signal line S1 (gate line GL) provides a scan drive signal, the TFTs in a row of light control units Ox electrically connected to that first signal line S1 (gate line GL) are turned on; simultaneously, the second signal lines S2 (data line SL) electrically connected to these light control units Ox are also turned on. The data signal provided by the first signal line S1 (gate line GL) is transmitted to the corresponding pixel electrode PE through the activated thin-film transistor TFT, charging the pixel electrode PE. The electric field formed between the pixel electrode PE and the common electrode controls the deflection degree of the liquid crystal molecules in the corresponding light control unit in the second liquid crystal layer 23, thereby adjusting the amount of light transmitted through the light control unit Qx. When the scanning drive signal of the light control unit Ox ends, the thin-film transistor TFT in the light control unit Ox is turned off, and the pixel electrode PE remains in a charged state until the next frame scanning signal arrives and is recharged. In this way, through the coordinated cooperation of the first signal line S1 (gate line GL) and the second signal line S2 (data line SL), independent control of each light control unit Ox in the light control panel 20 can be achieved, thereby performing pixel-level fine dimming of the backlight.

[0085] Combination Figures 11-13 as well as Figure 6 As shown, a light control unit Ox is correspondingly configured with two adjacent first signal lines S1 (gate lines GL). Specifically, the position of one light control unit Ox in the first direction X spans between the two adjacent first signal lines S1 (gate lines GL), and the two adjacent first signal lines S1 (gate lines GL) respectively provide scan drive signals to the thin-film transistors (TFTs) at different positions within the light control unit Ox. Simultaneously, a light control unit Ox is correspondingly configured with two adjacent second signal lines S2 (data lines SL). Specifically, the position of one light control unit Ox in the second direction Y spans between the two adjacent second signal lines S2 (data lines SL), and the two adjacent second signal lines S2 (data lines SL) respectively provide data signals to the thin-film transistors (TFTs) at different positions within the light control unit Ox.

[0086] Specifically, in combination Figures 11-13 as well as Figure 6As shown, the light control unit Ox includes four sub-regions F1 arranged in an array along the first direction X and the second direction Y. Each sub-region F1 contains a thin-film transistor (TFT) and a pixel electrode PE. The gate of the TFT in two sub-regions F1 in one row (i.e., the two sub-regions F1 in the previous row) is electrically connected to a first signal line S1 (gate line GL), which provides the scan drive signal. The gate of the TFT in two sub-regions F1 in the other row (i.e., the two sub-regions F1 in the next row) is electrically connected to another adjacent first signal line S1 (gate line GL), which provides the scan drive signal. Similarly, the first electrode of the thin-film transistor TFT in the two sub-regions F1 of one column (i.e., the two sub-regions F1 of the left column) is electrically connected to a second signal line S2 (data line SL), and the data signal is provided by the second signal line S2 (data line SL); the first electrode of the thin-film transistor TFT in the two sub-regions F1 of the other column (i.e., the two sub-regions F1 of the right column) is electrically connected to another adjacent second signal line S2 (data line SL), and the data signal is provided by the other second signal line S2 (data line SL).

[0087] Combination Figures 11-13 as well as Figure 6 As shown, the first signal line S1 (gate line GL) is a broken line trace. The first signal line S1 includes a plurality of first broken line units U1 arranged continuously and periodically along the second direction Y. Based on the first broken line unit U1 including the first broken line segment U11 and the second broken line segment U12 intersecting in the extension direction, the first broken line segment U11 and the second broken line segment U12 can be further set to be connected by a first connecting line segment J1. The first connecting line segment J1 extends along the second direction Y, so that the first signal line S1 (gate line GL) forms a gentle transition section at the peak B1 and the trough B2, rather than a sharp corner.

[0088] Understandably, if the first segment U11 and the second segment U12 are directly connected, a sharp angle will be formed at the connection point. Although this can relatively reduce the occlusion of light incident on the sub-pixel unit Px1, since the two adjacent first signal lines S1 (gate lines GL) are mirror symmetrical along the second direction Y, the sharp angles of the two adjacent first signal lines S1 (gate lines GL) are closest to each other. The relative positions of the sharp angles of the two adjacent first signal lines S1 (gate lines GL) will approximately form a dark area, which is darker than other areas. However, by setting the relatively inclined first segment U11 and the second segment U12 in the first signal lines S1 (gate lines GL) to be connected by the first connecting segment J1 extending along the second direction Y, the brightness of the relative positions of the bending points of the two adjacent first signal lines S1 (gate lines GL) can be increased, further suppressing interference fringes.

[0089] Combination Figures 11-13 as well as Figure 6 As shown, the second signal line S2 (data line SL) is also a zigzag trace. The second signal line S2 includes multiple second zigzag units U2 arranged continuously and periodically along the first direction X. The second zigzag unit U2 includes a third zigzag segment U21 and a fourth zigzag segment U22 whose extension directions intersect. Based on this, the third zigzag segment U21 and the fourth zigzag segment U22 in the second signal line S2 (data line SL) can be directly connected to relatively reduce the occlusion of light incident on the sub-pixel unit Px1.

[0090] Or, such as Figure 14 As shown, Figure 14 A schematic diagram of another correspondence between a light control unit Ox and a signal line is shown. It can be seen that U21 and the fourth broken line segment U22 in the second signal line S2 (data line SL) can also be connected by the second connecting line segment J2. The second connecting line segment J2 extends along the first direction X, so that the second signal line S2 (data line SL) also forms a smooth transition section at the peak B1 and trough B2, rather than a sharp corner, so as to improve the brightness of the relative positions of the bending points of two adjacent second signal lines S2 (data lines SL) and further suppress interference fringes.

[0091] It is understandable that the length of the first connecting segment J1 in the first signal line S1 (gate line GL) determines the length of the smooth transition section at the bend of the first signal line S1 (gate line GL). The longer the first connecting segment L1 is, the smoother the bend at the peak B1 or trough B2, but the greater the impact on the light transmittance of the light control unit Ox. The shorter the first connecting segment L1 is, the smaller the impact on the light transmittance of the light control unit Ox, and the weaker the smooth transition effect. Therefore, it is necessary to set the length of the first connecting segment J1 in the first signal line S1 (gate line GL) reasonably.

[0092] Optionally, in some embodiments of this application, such as Figure 6 and Figure 7As shown, a light control unit Ox corresponds to 2n × 2n pixel units Px, that is, a light control unit Ox corresponds to 2n (an even number) pixel units Px in the first direction X and 2n (an even number) pixel units Px in the second direction Y, and the whole corresponds to 2n × 2n pixel units Px. Based on this, any sub-region F1 of a light control unit Ox corresponds to n × n pixel units Px, that is, each sub-region F1 corresponds to n pixel units Px in the first direction X and n pixel units Px in the second direction Y, and the whole corresponds to n × n pixel units Px. x; n≥1, and n is an integer; at this time, the length L0 of any sub-region F1 of the light control unit Ox along the second direction Y is n×p1, and the length T1 of the first connecting line segment J1 along the second direction Y can be set to (n / 6)×p1, where p1 is the length of a pixel unit Px along the second direction Y. That is, the length of the first connecting line segment J1 along the second direction Y is equal to 1 / 6 of the length L0 of the sub-region F1 along the second direction Y. Thus, while providing sufficient smooth transition length at the bending point of the first signal line S1 (gate line GL), the impact on the aperture ratio of the light control unit Ox is small.

[0093] For example, such as Figure 6 As shown, one light control unit Ox corresponds to 4×4 pixel units Px, i.e., n=2. Any sub-region F1 of one light control unit Ox corresponds to 2×2 pixel units Px. As previously known, in the first polyline unit U1, the lengths of the first polyline segment U11 and the second polyline segment U12 along the second direction Y are both no greater than 2p1, and the lengths of the first polyline segment U11 and the second polyline segment U12 along the first direction X are both no greater than p2. At the same time, the length T1 of the first connecting line segment J1 connecting the first polyline segment U11 and the second polyline segment U12 can be (1 / 3)p1.

[0094] like Figure 7 As shown, one light control unit Ox corresponds to 2×2 pixel units Px, i.e., n=1. Any sub-region F1 of one light control unit Ox corresponds to one pixel unit Px. As previously known, in the first polyline unit U1, the lengths of the first polyline segment U11 and the second polyline segment U12 along the second direction Y are both no greater than p1, and the lengths of the first polyline segment U11 and the second polyline segment U12 along the first direction X are both no greater than (1 / 2)p2. At the same time, the length T1 of the first connecting line segment J1 connecting the first polyline segment U11 and the second polyline segment U12 can be (1 / 6)p1.

[0095] Alternatively, in some embodiments of this application, reference is made to... Figure 8As shown, one light control unit Ox can also correspond to (2m+1) × (2m+1) pixel units Px. That is, one light control unit Ox corresponds to (2m+1) (odd number) pixel units Px in the first direction X and (2m+1) (odd number) pixel units Px in the second direction Y, and the whole corresponds to (2m+1) × (2m+1) pixel units Px. Therefore, any sub-region F1 of one light control unit Ox corresponds to [(2m+1) / 2] × [(2m+1) / 2] Each sub-region F1 corresponds to (2m+1) / 2 pixel units Px in the first direction X and (2m+1) / 2 pixel units Px in the second direction Y, and the whole corresponds to [(2m+1) / 2]×[(2m+1) / 2] pixel units Px; m≥1, and m is an integer; at this time, the length L0 of any sub-region F1 of the light control unit Ox along the second direction Y is [(2m+1) / 2]×p1, and the length T1 of the first connecting line segment J1 along the second direction Y can be set to [(2m+1) / 12]×p1, where p1 is the length of one pixel unit Px along the second direction Y, that is, the length of the first connecting line segment J1 along the second direction Y is equal to 1 / 6 of the length L0 of the sub-region F1 along the second direction Y, so that while providing sufficient smooth transition length at the bending point of the first signal line S1 (gate line GL), the impact on the aperture ratio of the light control unit Ox is small.

[0096] Combination Figures 11-13 as well as Figure 6As shown, a sub-region F1 of the light control unit Qx can further include four sub-regions C1 arranged in an array along the first direction X and the second direction Y. Further, within a sub-region F1 of the light control unit Qx, two sub-regions C1 in one column (e.g., two sub-regions C1 in the left column) can be configured with one thin-film transistor (TFT) and one pixel electrode (PE), while two sub-regions in another column (e.g., two sub-regions C1 in the right column) can be configured with another TFT and another pixel electrode (PE). With this configuration, every two sub-regions C1 in the same column share one TFT and one pixel electrode (PE), meaning that only two TFTs and two pixel electrodes (PE) are configured in one sub-region F1, controlling the transmittance of the two columns of sub-regions C1 respectively. This reduces the number of thin-film transistors (TFTs) and pixel electrodes (PEs) in sub-region F1, simplifies the driving circuit design of the light control panel 20, and improves the light transmittance of the light control panel 20. Simultaneously, since the two sub-regions C1 in a column are arranged along the first direction X, and the pixel units Px corresponding to the two sub-regions C1 in a column are also adjacent along the first direction X, the two sub-regions C1 in a column share the same pixel electrode PE. This ensures the consistency of the light transmittance of the pixel units Px corresponding to these two sub-regions C1, which is beneficial for improving the brightness uniformity of the display panel. Furthermore, since one light control unit Qx corresponds to multiple thin-film transistors (TFTs) and corresponding pixel electrodes PEs, if one of the thin-film transistors (TFTs) is damaged due to process errors, the entire light control unit Qx is not significantly affected.

[0097] Further optional, combined Figures 11-13 As shown, a pixel electrode PE is divided into a first part PE1 and a second part PE2 by a first signal line S1 (gate line GL). The area of ​​the first part PE1 is smaller than that of the second part PE2. The first part PE1 is electrically connected to the second electrode of the corresponding thin-film transistor TFT through a first via V1. The second part PE2 is electrically connected to the second electrode of the corresponding thin-film transistor TFT through a second via V2 and a third connecting line segment J3. In this way, both the first part PE1 and the second part PE2 of the pixel electrode PE can be electrically connected to the corresponding thin-film transistor TFT. If the second part PE2 of the pixel electrode PE is damaged due to a short circuit or other reasons, the laser point R1 can be processed by laser etching to disconnect the second part PE2 of the pixel electrode PE from the thin-film transistor TFT. In this way, the first part PE1 of the pixel electrode PE can still drive the liquid crystal molecules in the corresponding area of ​​the second liquid crystal layer 23 to deflect normally.

[0098] Since the first segment U11 and the second segment U2 in the first signal line S1 (gate line GL) are both inclined relative to the first direction X and the second direction Y, therefore, combined with Figures 11-13As shown, the two first vias V1 in a sub-region F1 of the light control unit Ox are centrally symmetrical with respect to the intersection point O1 of the first signal line S1 (gate line GL) and the second signal line S2 in the direction perpendicular to the plane of the display panel. The two second vias V2 in the same sub-region F1 are also centrally symmetrical with respect to the intersection point O1. This arrangement makes the via layout of the two pixel electrodes PE in a sub-region F1 of the light control unit Ox symmetrical. Therefore, firstly, the centrally symmetrical via layout makes the charging path length and load capacitance of the two pixel electrodes PE basically the same, ensuring that the charging rate and charging effect of the two pixel electrodes PE are consistent, and avoiding uneven brightness caused by the difference in via position. Secondly, the centrally symmetrical via layout is conducive to the uniformity of photolithography and etching processes, which can reduce the risk of short circuit or open circuit caused by via position deviation during manufacturing, and improve the process yield of the light control panel 20. Furthermore, the centrally symmetrical via layout makes the signal lines and vias in sub-region F1 more regular and beautiful, which is conducive to improving the overall design quality of the light control panel 20.

[0099] Accordingly, embodiments of this application also provide a display device. Figure 15 This paper shows a top view of a display device provided in an embodiment of the present application, as shown in the schematic diagram. Figure 15 As shown, the display device 200 includes a display panel 100, which is the display panel provided in any of the above embodiments. Since the display panel 100 has been described in detail in the foregoing embodiments, it will not be described again here.

[0100] The display device 200 can be any electronic device with display capabilities, such as a touch screen, mobile phone, tablet computer, laptop computer, e-reader, or television.

[0101] The various parts of this manual are described in a combination of parallel and progressive methods. Each part focuses on the differences between the other parts, and the same or similar parts can be referred to each other.

[0102] The features described above regarding the disclosed embodiments can be substituted or combined with each other to enable those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, Including a stacked image display panel and a light control panel; The light control panel includes multiple first signal lines arranged along a first direction. The first signal lines are zigzag lines. The first signal lines include peaks and troughs arranged continuously and alternately along a second direction. The first direction and the second direction intersect each other. Both the first direction and the second direction are parallel to the plane where the display panel is located. In two adjacent first signal lines, the peak of one first signal line is set to correspond to the trough of the other first signal line.

2. The display panel according to claim 1, characterized in that, The two adjacent first signal lines are mirror-symmetrical about the second direction.

3. The display panel according to claim 2, characterized in that, The image display panel includes a plurality of first light-shielding strips extending along the first direction and a plurality of second light-shielding strips extending along the second direction, wherein the plurality of first light-shielding strips and the plurality of second light-shielding strips define a plurality of pixel units; The light control panel includes multiple light control units, and one light control unit corresponds to at least one pixel unit; The first signal line includes a plurality of first broken line units arranged continuously and periodically along the second direction, and the first broken line unit includes a first broken line segment and a second broken line segment whose extension directions intersect. The two first polygonal units that are mirror-symmetrical about the second direction are correspondingly set with one light control unit.

4. The display panel according to claim 3, characterized in that, In the first polyline unit, the first polyline segment and the second polyline segment are mirror-symmetric about the first direction.

5. The display panel according to claim 4, characterized in that, The optical control unit includes four sub-regions arranged in an array along the first direction and the second direction. Two sub-regions in one row are corresponding to one of the first polygonal units in one of the first signal lines, and two sub-regions in the other row are corresponding to one of the first polygonal units in an adjacent first signal line.

6. The display panel according to claim 5, characterized in that, One light control unit corresponds to 2n×2n pixel units, and the sub-region corresponds to n×n pixel units, where n≥1 and n is an integer; In the first polyline unit, the lengths of the first polyline segment and the second polyline segment along the second direction are both no greater than n×p1, and the lengths of the first polyline segment and the second polyline segment along the first direction are both no greater than (n / 2)×p2, where p1 is the length of a pixel unit along the second direction, and p2 is the length of a pixel unit along the first direction.

7. The display panel according to claim 5, characterized in that, One light control unit corresponds to (2m+1)×(2m+1) pixel units, and the sub-region corresponds to [(2m+1) / 2]×[(2m+1) / 2] pixel units, where m≥0 and m is an integer; In the first polyline unit, the lengths of the first polyline segment and the second polyline segment along the second direction are both no greater than [(2m+1) / 2]×p1, and the lengths of the first polyline segment and the second polyline segment along the first direction are both no greater than [(2m+1) / 4]×p2, where p1 is the length of a pixel unit along the second direction, and p2 is the length of a pixel unit along the first direction.

8. The display panel according to claim 6 or 7, characterized in that, The sub-region includes four sub-regions arranged in an array along the first direction and the second direction. The orthographic projection of the first or second line segment corresponding to the sub-region on the plane where the display panel is located overlaps with the orthographic projection of the two sub-regions diagonally opposite the sub-region on the plane where the display panel is located.

9. The display panel according to claim 1, characterized in that, The light control panel also includes multiple second signal lines arranged along the second direction. The second signal lines are zigzag lines, and the second signal lines include peaks and troughs that are continuously and alternately arranged along the first direction.

10. The display panel according to claim 9, characterized in that, In two adjacent second signal lines, the peak of one second signal line is set to correspond to the trough of the other second signal line.

11. The display panel according to claim 10, characterized in that, The two adjacent second signal lines are mirror-symmetrical about the first direction.

12. The display panel according to claim 11, characterized in that, The image display panel includes a plurality of first light-shielding strips extending along the first direction and a plurality of second light-shielding strips extending along the second direction, wherein the plurality of first light-shielding strips and the plurality of second light-shielding strips define a plurality of pixel units; The light control panel includes multiple light control units, and one light control unit corresponds to at least one pixel unit; The first signal line includes a plurality of first broken line units arranged continuously and periodically along the second direction, and the first broken line unit includes a first broken line segment and a second broken line segment whose extension directions intersect. The two first polygonal units that are mirror-symmetrical about the second direction are correspondingly set with one light control unit; The second signal line includes a plurality of second broken line units arranged continuously and periodically along the first direction. The second broken line unit includes a third broken line segment and a fourth broken line segment whose extension directions intersect. Two second broken line units that are mirror-symmetrical about the first direction are correspondingly arranged with one of the light control units.

13. The display panel according to claim 12, characterized in that, In the first polyline unit, the first polyline segment and the second polyline segment are mirror-symmetric about the first direction; In the second polyline unit, the third polyline segment and the fourth polyline segment are mirror-symmetric about the second direction.

14. The display panel according to claim 13, characterized in that, The light control unit includes four sub-regions arranged in an array along the first direction and the second direction. Two sub-regions in one row are corresponding to one of the first broken line units in one of the first signal lines, and two sub-regions in the other row are corresponding to one of the first broken line units in an adjacent first signal line. Two sub-regions in one column are configured to correspond to one of the second broken line units in a second signal line, and two sub-regions in another column are configured to correspond to one of the second broken line units in an adjacent second signal line.

15. The display panel according to claim 14, characterized in that, The sub-region includes four sub-regions arranged in an array along the first direction and the second direction. The orthographic projection of the first or second folded line segment corresponding to the sub-region on the plane where the display panel is located overlaps with the orthographic projection of the two sub-regions diagonally opposite the sub-region on the plane where the display panel is located. The orthographic projection of the third or fourth folded line segment corresponding to the sub-region on the plane where the display panel is located overlaps with the orthographic projection of the other two sub-regions diagonally opposite the sub-region on the plane where the display panel is located.

16. The display panel according to claim 15, characterized in that, The first signal line is a gate line, and the second signal line is a data line; The light control unit includes at least one thin-film transistor and a pixel electrode corresponding to the thin-film transistor. The gate of the thin-film transistor is electrically connected to the first signal line, the first electrode of the thin-film transistor is electrically connected to the second signal line, and the second electrode of the thin-film transistor is electrically connected to the corresponding pixel electrode.

17. The display panel according to claim 16, characterized in that, In the first signal line, the first broken line segment and the second broken line segment are connected by a first connecting line segment, which extends along the second direction; In the second signal line, the third segment and the fourth segment are directly connected; or, the third segment and the fourth segment are connected by a second connecting segment that extends along the first direction.

18. The display panel according to claim 17, characterized in that, One light control unit corresponds to 2n×2n pixel units, and the sub-region corresponds to n×n pixel units, where n≥1 and n is an integer; The length of the first connecting line segment along the second direction is (n / 6)×p1, where p1 is the length of one pixel unit along the second direction.

19. The display panel according to claim 17, characterized in that, One light control unit corresponds to (2m+1)×(2m+1) pixel units, and the sub-region corresponds to [(2m+1) / 2]×[(2m+1) / 2] pixel units, where m≥0 and m is an integer; The length of the first connecting line segment along the second direction is [(2m+1) / 12]×p1, where p1 is the length of one pixel unit along the second direction.

20. The display panel according to claim 16, characterized in that, In one of the sub-regions, two sub-regions in one column are respectively provided with one thin-film transistor and one pixel electrode, and two sub-regions in another column are respectively provided with another thin-film transistor and another pixel electrode.

21. The display panel according to claim 20, characterized in that, A pixel electrode is divided into a first part and a second part by the first signal line. The area of ​​the first part is smaller than that of the second part. The first part is electrically connected to the second electrode of the corresponding thin film transistor through a first via. The second part is electrically connected to the second electrode of the corresponding thin film transistor through a second via and a third connecting line segment.

22. The display panel according to claim 21, characterized in that, The two first vias in the sub-region are centrally symmetrical with respect to the intersection point of the first signal line and the second signal line corresponding to the sub-region in a direction perpendicular to the plane where the display panel is located, and the two second vias in the sub-region are also centrally symmetrical with respect to the intersection point.

23. A display device, characterized in that, Includes the display panel as described in any one of claims 1-22.

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