Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a plurality of pixel areas arranged in the first direction and the second direction. The conduction layer comprises a plurality of signal lines arranged in the first direction, and a plurality of pixel areas arranged in the second direction are arranged between every two adjacent signal lines. The light shielding layer comprises a light shielding part located between two adjacent pixel areas in the first direction; wherein the orthographic projection of the shading part on the first substrate is at least partially overlapped with the orthographic projection of the signal line on the first substrate, and at least part of the shading part extends into the pixel area; according to the display panel, the light rays which obliquely enter the pixel area can be further shaded, light leakage is reduced, the dark state brightness is reduced, and the contrast ratio of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Currently, display panels have increasingly higher requirements for viewing angles and contrast in order to improve information readability, adapt to multi-angle viewing, and enhance the overall user experience.

[0003] For example, in a car display screen, due to the low contrast, it is difficult for the driver to read the information on the car display screen under various driving conditions (such as day, night, sunny, rainy, etc.) and the influence of the in-car environment. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, which can improve the contrast of the display panel.

[0005] An embodiment of the present application provides a display panel, the display panel comprising a plurality of pixel areas arranged along a first direction and a second direction, the first direction and the second direction intersecting;

[0006] The display panel further includes:

[0007] a first substrate;

[0008] A conducting layer, disposed on the first substrate, the conducting layer comprising a plurality of signal lines arranged along the first direction, and a plurality of pixel areas arranged along the second direction are disposed between two adjacent signal lines;

[0009] A black matrix is ​​arranged on a side of the conductive layer away from the first substrate, and the black matrix is ​​arranged at least between two adjacent pixel areas along the first direction;

[0010] a light shielding layer, disposed between the first substrate and the conductive layer, or between the conductive layer and the black matrix, the light shielding layer comprising a light shielding portion located between two adjacent pixel areas along the first direction;

[0011] The orthographic projection of the light shielding portion on the first substrate at least partially overlaps with the orthographic projection of the signal line on the first substrate, and at least a portion of the light shielding portion extends into the pixel area.

[0012] In an embodiment of the present application, the signal line includes a signal line segment located between two adjacent pixel areas along the first direction, and the light shielding portion is arranged non-parallel to the signal line segment.

[0013] In an embodiment of the present application, the center of the light shielding portion does not coincide with the center of the signal line segment, and a line connecting the center of the light shielding portion and the center of the signal line segment is parallel to the first direction.

[0014] In one embodiment of the present application, the shading portion includes a first side edge and a second side edge arranged opposite to each other along the first direction, and between any two adjacent pixel areas along the first direction, a distance from the center of the signal line segment to the first side edge is greater than a distance from the center of the signal line segment to the second side edge.

[0015] In one embodiment of the present application, an overlapping area between a pixel region located on the first side of the light-shielding portion and the light-shielding portion is greater than an overlapping area between a pixel region located on the second side of the light-shielding portion and the light-shielding portion.

[0016] In one embodiment of the present application, the signal line segment includes a first line segment and a second line segment connected to each other, the first line segment and the second line segment are connected at the center of the signal line segment, the first line segment and the second line segment have a first angle toward the center of the shading portion and a second angle away from the center of the shading portion, and the first angle is smaller than the second angle.

[0017] In an embodiment of the present application, the shading portion is parallel to the second direction, and the acute angle between the shading portion and the first line segment is equal to the acute angle between the shading portion and the second line segment.

[0018] In one embodiment of the present application, the light shielding portion intersects with the second direction, and the light shielding portion includes a first light shielding sub-portion and a second light shielding sub-portion connected to each other, the first light shielding sub-portion and the second light shielding sub-portion are connected at the center of the light shielding portion, the first light shielding sub-portion overlaps with the first line segment, and the second light shielding sub-portion overlaps with the second line segment;

[0019] The acute angle between the first light-shielding sub-portion and the first line segment is equal to the acute angle between the second light-shielding sub-portion and the second line segment.

[0020] In an embodiment of the present application, the acute angle between the light shielding portion and the signal line segment is greater than or equal to 5° and less than or equal to 15°.

[0021] In an embodiment of the present application, the signal line includes a signal line segment located between two adjacent pixel areas along the first direction, and the light shielding portion is arranged parallel to the signal line segment.

[0022] In an embodiment of the present application, the black matrix includes a first sub-portion located between two adjacent pixel areas along the first direction, and the first sub-portion is parallel to the signal line segment.

[0023] In one embodiment of the present application, the black matrix further includes a second sub-portion connected to the first sub-portion, and the second sub-portion extends into the pixel area located on the first side of the first sub-portion;

[0024] And / or, the black matrix also includes a third sub-portion connected to the first sub-portion, the third sub-portion extends to the pixel area located on a second side of the first sub-portion opposite to the first side, and the direction from the first side to the second side is the first direction.

[0025] In one embodiment of the present application, the second sub-portion partially overlaps with the center of the pixel area along the first direction, the third sub-portion partially overlaps with the center of the pixel area along the first direction, the length of the second sub-portion along the first direction is smaller than the length of the third sub-portion along the first direction, and the length of the second sub-portion along the second direction is greater than the length of the third sub-portion along the second direction.

[0026] In one embodiment of the present application, the display panel also includes a device area located between two adjacent pixel areas along the second direction, the display panel also includes a thin film transistor arranged on the first substrate and located in the device area, the thin film transistor is connected to the signal line, and the black matrix also includes a fourth sub-portion covering at least the device area.

[0027] In one embodiment of the present application, the display panel further includes:

[0028] A plurality of pixel electrodes are arranged on a side of the conductive layer away from the first substrate, the plurality of pixel electrodes are arranged corresponding to the plurality of pixel regions, and the pixel electrodes in the pixel regions are connected to the thin film transistors in the device regions adjacent to each other along the second direction;

[0029] The pixel electrode includes a main portion and ends located at opposite sides of the main portion along the second direction, and at least part of the orthographic projection of the end portions on the first substrate is located within the orthographic projection of the fourth sub-portion on the first substrate.

[0030] In one embodiment of the present application, the light shielding layer is disposed between the conductive layer and the black matrix, and the display panel further includes:

[0031] A second substrate is disposed on a side of the light shielding layer away from the first substrate, and the black matrix is ​​disposed on the second substrate and located on a side of the second substrate close to the light shielding layer;

[0032] A common electrode is arranged on a side of the conductive layer away from the first substrate, the light shielding portion is connected to the common electrode, and the material of the light shielding layer includes a metal material;

[0033] The liquid crystal layer is arranged between the common electrode and the black matrix.

[0034] In an embodiment of the present application, any of the pixel regions includes a third side and a fourth side that are arranged opposite to each other along the first direction, and the length of the light shielding portion is smaller than the length of the third side.

[0035] According to the above-mentioned purpose of the present application, an embodiment of the present application further provides a display device, which includes the display panel.

[0036] The present application provides a display panel and a display device. By adding a shading layer in the display panel, and the shading layer includes a shading portion that at least partially overlaps with the signal line, and the shading portion is at least partially located between adjacent pixel areas, it can further play a shading role on the light obliquely incident into the pixel area on the basis of the original shading role of the black matrix, reduce light leakage, reduce dark state brightness, and improve the contrast of the display panel; further, because at least part of the shading portion extends into the pixel area, the shading degree of the shading portion on the oblique light output of the adjacent pixel area can be adjusted by adjusting the shading area of ​​the shading portion on the adjacent pixel area, so that the shading effect of the shading portion on the oblique light output in a preset direction is greater, so as to improve the contrast of the display panel in the preset direction.

[0037] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0039] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0040] Figure 1 A schematic diagram of a first structure of a display panel provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of a first planar distribution structure of a display panel provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of a second planar distribution structure of a display panel provided in an embodiment of the present application;

[0043] Figure 4 A second structural schematic diagram of a display panel provided in an embodiment of the present application;

[0044] Figure 5 A third structural schematic diagram of a display panel provided in an embodiment of the present application;

[0045] Figure 6 A schematic diagram of a third planar distribution structure of a display panel provided in an embodiment of the present application;

[0046] Figure 7 A schematic diagram of a first structure between a signal line segment and a light shielding portion provided in an embodiment of the present application;

[0047] Figure 8 A schematic diagram of a second structure between a signal line segment and a light shielding portion provided in an embodiment of the present application;

[0048] Fig. 9 A schematic diagram of a fourth planar distribution structure of a display panel provided in an embodiment of the present application;

[0049] Fig.10 A schematic diagram of a fifth planar distribution structure of a display panel provided in an embodiment of the present application;

[0050] Fig.11 A sixth schematic diagram of a planar distribution structure of a display panel provided in an embodiment of the present application;

[0051] Fig.12 A seventh schematic diagram of a planar distribution structure of a display panel provided in an embodiment of the present application;

[0052] Fig.13 A schematic diagram of a third structure between a signal line segment and a light shielding portion provided in an embodiment of the present application;

[0053] Fig.14 A schematic diagram of the structure of a display device provided in an embodiment of the present application.

[0054] Description of reference numerals:

[0055] 11. first substrate; 12. second substrate; 101. pixel area; 1011. third side; 1012. fourth side; 102. device area;

[0056] 20, conductive layer; 21, signal line; 211, signal line segment; 2111, first line segment; 2112, second line segment; 22, touch line;

[0057] 30. Black matrix; 31. First sub-unit; 32. Second sub-unit; 33. Third sub-unit; 34. Fourth sub-unit;

[0058] 40, light shielding layer; 41, light shielding portion; 411, first light shielding sub-portion; 412, second light shielding sub-portion; 413, first side edge; 414, fourth side edge;

[0059] 50, device layer; 51, pixel electrode; 52, thin film transistor; 521, active layer; 522, gate; 523, source; 524, drain; 53, shielding layer; 54, buffer layer; 55, gate insulating layer; 56, interlayer dielectric layer; 57, planar layer; 58, insulating layer; 59, common electrode;

[0060] 61. Color block; 62. Protective layer; 63. Spacer column; 64. Liquid crystal layer. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0062] Please combine Figure 1 , Figure 2 as well as Figure 3 An embodiment of the present application provides a display panel, which includes a plurality of pixel areas 101 arranged along a first direction X and a second direction Y, wherein the first direction X and the second direction Y intersect.

[0063] The display panel also includes a first substrate 11, a conductive layer 20, a black matrix 30 and a light shielding layer 40; the conductive layer 20 is arranged on the first substrate 11, the conductive layer 20 includes a plurality of signal lines 21 arranged along the first direction X, and a plurality of pixel areas 101 arranged along the second direction Y are arranged between two adjacent signal lines 21; the black matrix 30 is arranged on a side of the conductive layer 20 away from the first substrate 11, and the black matrix 30 is at least arranged between two adjacent pixel areas 101 along the first direction X; the light shielding layer 40 is arranged between the first substrate 11 and the conductive layer 20, or between the conductive layer 20 and the black matrix 30, and the light shielding layer 40 includes a light shielding portion 41 located between two adjacent pixel areas 101 along the first direction X.

[0064] The orthographic projection of the light shielding portion 41 on the first substrate 11 at least partially overlaps with the orthographic projection of the signal line 21 on the first substrate 11 , and at least a portion of the light shielding portion 41 extends into the pixel area 101 .

[0065] In the implementation process, the embodiment of the present application adds the shading layer 40 in the display panel, and the shading layer 40 includes the shading portion 41 that at least partially overlaps with the signal line 21, and the shading portion 41 is at least partially located between the adjacent pixel areas 101. On the basis of the original shading effect of the black matrix 30, it can further play a shading effect on the light obliquely incident into the pixel area 101, reduce light leakage, and reduce dark state brightness, so as to improve the contrast of the display panel; further, at least part of the shading portion 41 extends into the pixel area 101; and then the shading area of ​​the shading portion 41 on the adjacent pixel area 101 can be adjusted to adjust the shading degree of the shading portion 41 on the oblique light output of the adjacent pixel area 101, so that the shading effect of the shading portion 41 on the oblique light output in the preset direction is greater, so as to improve the contrast of the display panel in the preset direction.

[0066] Specifically, please continue to combine Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The display panel includes a first substrate 11 and a second substrate 12 that are arranged opposite to each other, a device layer 50 , a color resist layer, a protective layer 62 , spacer columns 63 and a liquid crystal layer 64 .

[0067] In some embodiments, the device layer 50 is disposed on the first substrate 11 and is located on a side of the first substrate 11 close to the second substrate 12 .

[0068] In some embodiments, the device layer 50 includes a shielding layer 53 disposed on the first substrate 11, a thin film transistor 52, and an insulating film layer covering the shielding layer 53 and the thin film transistor 52; specifically, the thin film transistor 52 includes an active layer 521, a gate 522, a source 523, and a drain 524, and the insulating film layer includes a buffer layer 54, a gate insulating layer 55, an interlayer dielectric layer 56, a flat layer 57, and an insulating layer 58; wherein the shielding layer 53 is disposed on the surface of the first substrate 11 close to the second substrate 12, the buffer layer 54 covers the shielding layer 53, and the active layer 521 is arranged on the buffer layer 54 and is located on the side of the shielding layer 53 away from the first substrate 11, the gate insulating layer 55 covers the active layer 521, the gate 522 is arranged on the gate insulating layer 55 and is located on the side of the active layer 521 away from the shielding layer 53, the interlayer dielectric layer 56 covers the gate 522, the source 523 and the drain 524 are arranged on the interlayer dielectric layer 56 and pass through the interlayer dielectric layer 56 and the gate insulating layer 55 to overlap with the two sides of the active layer 521 respectively, and the planar layer 57 covers the source 523 and the drain 524.

[0069] In some embodiments, the display panel includes a plurality of pixel areas 101 arranged along the first direction X and the second direction Y, and the first direction X and the second direction Y intersect; further, the display panel also includes a device area 102 located between two adjacent pixel areas 101 along the second direction Y, and the thin film transistor 52 can be arranged in the device area 102 to avoid the thin film transistor 52 blocking the light output of the pixel area 101, and each pixel area 101 can correspond to one device area 102, and then the thin film transistor 52 in each device area 102 can be used to control the signal transmitted to the corresponding pixel area 101.

[0070] In some embodiments, the first direction X is perpendicular to the second direction Y.

[0071] In some embodiments, the device layer 50 also includes a plurality of pixel electrodes 51 and a common electrode 59, and the pixel electrodes 51 and the common electrodes 59 are arranged on the side of the thin film transistor 52 away from the first substrate 11; the plurality of pixel electrodes 51 are arranged corresponding to the plurality of pixel areas 101, and the pixel electrode 51 in each pixel area 101 is connected to the thin film transistor 52 in the device area 102 adjacent to the second direction Y, so as to achieve the purpose of the thin film transistor 52 in the device area 102 being used to control the signal transmitted to the corresponding pixel area 101.

[0072] In some embodiments, the plurality of pixel electrodes 51 and the plurality of pixel regions 101 are arranged in a one-to-one correspondence.

[0073] In some embodiments, the color filter layer is disposed on the second substrate 12 and is located on the side of the second substrate 12 close to the first substrate 11. The color filter layer includes a black matrix 30 and a plurality of color resist blocks 61 disposed on the second substrate 12, and the black matrix 30 is located between adjacent color resist blocks 61; the protective layer 62 covers the plurality of color resist blocks 61 and the black matrix 30; the spacer column 63 is disposed on the side of the protective layer 62 away from the second substrate 12.

[0074] Among them, the multiple color resist blocks 61 are arranged corresponding to the multiple pixel areas 101, and the multiple color resist blocks 61 can include red color resist blocks, green color resist blocks and blue color resist blocks, so that the light passing through the color filter layer is colored light, so as to realize full-color display of the display panel.

[0075] In some embodiments, the plurality of color-resistance blocks 61 and the plurality of pixel regions 101 are arranged in a one-to-one correspondence.

[0076] In some embodiments, the liquid crystal layer 64 is disposed between the device layer 50 and the protective layer 62 and includes a plurality of liquid crystal molecules. The pixel electrode 51 in each of the pixel areas 101 can form an electric field with the common electrode 59 to control the deflection of the liquid crystal molecules in each of the pixel areas 101, thereby controlling the amount of light passing through each of the pixel areas 101 to achieve the display function of the display panel.

[0077] In the embodiment of the present application, the conductive layer 20 is located in the device layer 50, that is, the conductive layer 20 belongs to a film layer in the device layer 50; the conductive layer 20 includes a plurality of signal lines 21 arranged along the first direction X, and a plurality of pixel areas 101 arranged along the second direction Y are arranged between two adjacent signal lines 21, and one signal line 21 is arranged between two adjacent columns of pixel areas 101 along the first direction X.

[0078] In some embodiments, the conductive layer 20 may include the source 523 and the drain 524 , that is, the signal line 21 is disposed in the same layer as the source 523 and the drain 524 .

[0079] Among them, the signal line 21 is used to transmit signals to multiple adjacent pixel areas 101 arranged along the second direction Y, and the signal line 21 can be a data line, then the signal line 21 is connected to the thin film transistors 52 in multiple adjacent device areas 102 arranged along the second direction Y, for example, it can be connected to the source 523 or the drain 524, and then the signal in the signal line 21 can be transmitted to the pixel electrode 51 in the corresponding pixel area 101 through the thin film transistor 52.

[0080] In some embodiments, the conductive layer 20 may further include a touch line 22 , and the touch line 22 may be disposed between two adjacent columns of pixel regions 101 along the first direction X.

[0081] In some embodiments, the black matrix 30 may include a first sub-portion 31 arranged between two adjacent pixel areas 101 along the first direction X, wherein the signal line 21 and the first sub-portion 31 can both block the light output between the adjacent pixel areas 101. However, it is still easy for the light output of each pixel area 101 to be affected by the oblique light output, which seriously affects the contrast of the display panel.

[0082] In the embodiment of the present application, the light shielding layer 40 is located in the device layer 50, the light shielding layer 40 is located between the first substrate 11 and the conductive layer 20 or between the conductive layer 20 and the black matrix 30, and the light shielding layer 40 is located between the conductive layer 20 and the black matrix 30 in the embodiment of the present application. Figure 1 shown.

[0083] The light shielding layer 40 includes a light shielding portion 41 located between two adjacent pixel areas 101 along the first direction X, and the orthographic projection of the light shielding portion 41 on the first substrate 11 at least partially overlaps with the orthographic projection of the signal line 21 on the first substrate 11; Figure 1 As shown, the light A1 is emitted from between the adjacent signal lines 21, and can be emitted into the liquid crystal layer 64 from the edge of the shading portion 41, and reaches the color filter layer; and relative to the forward direction, the light A2 is more oblique relative to the emission direction of the light A1, and thus when the light A2 passes through the edge of the signal line 21, it will still be blocked by the shading portion 41, so as to avoid the oblique light A2 from affecting the light output of the adjacent pixel area 101, thereby effectively improving the contrast of the display panel.

[0084] In some embodiments, the width of the light shielding portion 41 may be greater than, less than, or equal to the width of the signal line 21 .

[0085] In some embodiments of the present application, Figure 4 As shown, the common electrode 59 can be arranged on the planar layer 57 and covered by the insulating layer 58 , the light shielding portion 41 is also arranged on the planar layer 57 and covered by the insulating layer 58 , and the light shielding portion 41 can be connected to the common electrode 59 .

[0086] In some embodiments, the material of the light-shielding layer 40 may include a conductive metal material. For example, the metal layer 40 may be a single-layer metal layer, or a multi-layer metal layer, or a metal alloy, or a stack of multi-layer metal layers and an insulating layer, and an insulating layer is provided between two adjacent metal layers, and the two adjacent metal layers can be connected by a via passing through the insulating layer; and thus, the light-shielding portion 41 is connected to the common electrode 59 to reduce the resistance of the common electrode 59, and the common electrode 59 can also be arranged relative to the same layer material of the gate 522 to form a storage capacitor, and thus, the light-shielding portion 41 is connected to the common electrode 59 to improve the charging capacity of the storage capacitor formed by the common electrode 59.

[0087] In some embodiments, the material of the light shielding layer 40 may be an insulating light shielding material, such as a dark color resist material, etc., and the light shielding layer 40 may be located between the conductive layer 20 and the liquid crystal layer 64 .

[0088] It should be noted that the pixel electrode 51 may be located on the insulating layer 58 and between the insulating layer 58 and the liquid crystal layer 64 .

[0089] In some embodiments of the present application, Figure 5 As shown, the common electrode 59 may be disposed on the insulating layer 58 , the light shielding portion 41 may also be disposed on the insulating layer 58 , and the light shielding portion 41 may be connected to the common electrode 59 .

[0090] In some embodiments, the material of the light-shielding layer 40 may be a conductive metal material, and the light-shielding portion 41 is connected to the common electrode 59 to reduce the resistance of the common electrode 59, and the common electrode 59 may also be arranged relative to the same layer of material of the gate 522 to form a storage capacitor, and the light-shielding portion 41 is connected to the common electrode 59 to improve the charging capacity of the storage capacitor formed by the common electrode 59.

[0091] In some embodiments, the material of the light shielding layer 40 may be an insulating light shielding material, such as a dark color resist material, etc., and the light shielding layer 40 may be located between the conductive layer 20 and the liquid crystal layer 64 .

[0092] It should be noted that the pixel electrode 51 may be located between the planar layer 57 and the insulating layer 58 .

[0093] In other embodiments of the present application, the shading layer 40 may also be disposed at other locations, such as between the conductive layer 20 and the film layer where the common electrode 59 is located, or on a side of the common electrode 59 away from the conductive layer 59 .

[0094] In some embodiments, please combine Figure 1 , Figure 2 , Figure 3 as well as Figure 6 The signal line 21 includes a signal line segment 211 located between two adjacent pixel areas 101 along the first direction X, the light shielding portion 41 and the signal line segment 211 are not arranged in parallel, and at least part of the light shielding portion 41 extends into the pixel area 101; and then the degree of shielding of the oblique light output of the adjacent pixel area 101 by the light shielding portion 41 can be adjusted by adjusting the shielding area of ​​the adjacent pixel area 101 by the light shielding portion 41, so that the light shielding portion 41 has a greater shielding effect on the oblique light output in the preset direction, so as to improve the contrast of the display panel in the preset direction.

[0095] It should be noted that the center of the light-shielding portion 41 does not coincide with the center of the signal line segment 211, and the line connecting the center of the light-shielding portion 41 and the center of the signal line segment 211 is parallel to the first direction X; that is, the light-shielding portion 41 is offset relative to the signal line segment 211 toward an adjacent pixel area 101, thereby increasing the light-shielding portion 41's greater shielding effect on the oblique light output of an adjacent pixel area 101.

[0096] Among them, it has been verified that the middle position of the edge area of ​​the pixel area 101 is more prone to light leakage. Therefore, the line connecting the center of the shading portion 41 and the center of the signal line segment 211 is parallel to the first direction X, which can effectively block the position of the pixel area 101 where light leakage is prone to occur, so as to more effectively improve the contrast of the display panel.

[0097] It can be understood that since the added shading layer 40 is located on the side of the black matrix 30 close to the backlight, that is, the shading portion 41 is located closer to the light source, therefore, by adjusting the position and structure of the shading portion 41, the oblique light can be more effectively blocked, which is more conducive to and more effectively improving the contrast of the display panel.

[0098] In some embodiments, the light shielding portion 41 includes a first side 413 and a second side 414 that are relatively arranged along the first direction X, and between any two adjacent pixel areas 101 along the first direction X, a distance H1 from the center of the signal line segment 211 to the first side 413 is greater than a distance H2 from the center of the signal line segment 211 to the second side 414; that is, the light shielding portion 41 is offset toward the pixel area 101 on the side of the first side 413, and therefore, an overlapping area between a pixel area 101 located on the first side 413 of the light shielding portion 41 and the light shielding portion 41 is greater than an overlapping area between a pixel area 101 located on the second side 414 of the light shielding portion 41 and the light shielding portion 41.

[0099] It can be understood that when one of the pixel areas 101 located at the first side 413 of the light shielding portion 41 emits light toward the light shielding portion 41, that is, toward Figure 6 When light is emitted from the right side of the light shielding portion 41, the shielding effect of the light shielding portion 41 is greater, and the oblique light emitted to the right side by a pixel area 101 located at the first side 413 of the light shielding portion 41 can be more effectively blocked; when light is emitted from a pixel area 101 located at the second side 414 of the light shielding portion 41 toward the direction of the light shielding portion 41, that is, toward Figure 6 When light is emitted from the left side of the pixel area 101, the shading effect of the shading portion 41 on the light is smaller. Therefore, the shading effect of the shading portion 41 on the oblique light emitted from the pixel area 101 on the right side is smaller than the shading effect of the pixel area 101 on the left side, thereby effectively improving the contrast of the right side viewing angle of the display panel to achieve the purpose of improving the contrast of the specific viewing angle of the display panel.

[0100] In some embodiments, any of the pixel areas 101 includes a third side 1011 and a fourth side 1012 relatively arranged along the first direction X, and the length of the light-shielding portion 41 is less than the length of the third side 1011; thereby, while ensuring that the light-shielding portion 41 effectively shields the oblique light output from the pixel area 101, the transmittance of the pixel area 101 can be improved.

[0101] In some embodiments, a ratio of the length of the light shielding portion 41 to the length of the third side 1011 is greater than or equal to 30% and less than or equal to 80%.

[0102] It should be noted that the signal line segment 211 includes a first line segment 2111 and a second line segment 2112 connected to each other. The first line segment 2111 and the second line segment 2112 are connected at the center of the signal line segment 211. The first line segment 2111 and the second line segment 2112 have a first angle a toward the center of the shading portion 41 and a second angle b away from the center of the shading portion 41. The first angle a is smaller than the second angle b, that is, the signal line segment 211 is bent, and the shading portion 41 is offset toward the inner side of the bend of the signal line segment 211.

[0103] Correspondingly, the pixel electrode 51 includes a main body 511 and end portions 512 connected to opposite sides of the main body 511 along the second direction Y, wherein the main body 511 is bent, and the bending direction and bending angle of the main body 511 may be the same as those of the signal line segment 211.

[0104] It can be understood that the acute angle c between the shading portion 41 and the signal line segment 211 is greater than or equal to 5° and less than or equal to 15°; for example, the angle c can be 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14° or 15°; wherein, if the angle c is too small or too large, the shading portion 41 cannot block the oblique light output from the light leakage area of ​​the adjacent pixel area 101 at a specific viewing angle.

[0105] In some embodiments of the present application, Figure 7 As shown, the light shielding portion 41 is parallel to the second direction Y, and the acute angle between the light shielding portion 41 and the first line segment 2111 is equal to the acute angle between the light shielding portion 41 and the second line segment 2112 .

[0106] In some embodiments of the present application, Figure 8 As shown, the shading portion 41 intersects with the second direction Y, and the shading portion 41 includes a first shading sub-portion 411 and a second shading sub-portion 412 connected to each other, the first shading sub-portion 411 and the second shading sub-portion 412 are connected at the center of the shading portion 41, the first shading sub-portion 411 partially overlaps with the first line segment 2111, and the second shading sub-portion 412 partially overlaps with the second line segment 2112; wherein the acute angle between the first shading sub-portion 411 and the first line segment 2111 is equal to the acute angle between the second shading sub-portion 412 and the second line segment 2112.

[0107] It should be noted that the acute angle between the first light shielding sub-portion 411 and the first line segment 2111 and the acute angle between the second light shielding sub-portion 412 and the second line segment 2112 are both greater than or equal to 5° and less than or equal to 15°.

[0108] Further, the light shielding layer 40 may be a film layer, or a stacked structure of multiple sub-layers, and the light shielding portion 41 may be composed of multiple sub-layers, that is, different parts of the light shielding portion 41 may be located in different sub-layers. For example, the light shielding layer 40 may include a first sub-layer and a second sub-layer, the first light shielding sub-portion 411 is located in the first sub-layer, and the second light shielding sub-portion 412 is located in the second sub-layer, and the first light shielding sub-portion 411 and the second light shielding sub-portion 412 may be connected or not connected through a via.

[0109] As mentioned above, the shading portion 41 can be located between any two adjacent pixel areas 101 along the first direction X, or the shading portion 41 can be located between part of the two adjacent pixel areas 101 along the first direction X. This is not limited here and can be selected according to actual needs. The diagram provided in the embodiment of the present application only shows one shading portion 41 for illustration.

[0110] In addition, the first sub-portion 31 of the black matrix 30 is located between two adjacent pixel areas 101 along the first direction X; the orthographic projection of the shading portion 41 on the first substrate 11 at least partially overlaps with the orthographic projection of the first sub-portion 31 on the first substrate 11.

[0111] In some embodiments, the first sub-portion 31 is parallel to the signal line segment 211 , and therefore, the angle relationship between the light shielding portion 41 and the first sub-portion 31 is the same as the angle relationship between the light shielding portion 41 and the signal line segment 211 .

[0112] In some embodiments, the first sub-portion 31 may also be non-parallel to the signal line segment 211 , but the orthographic projection of the signal line segment 211 on the first substrate 11 is located within the orthographic projection of the first sub-portion 31 on the first substrate 11 .

[0113] In some embodiments of the present application, Fig. 9 As shown, the first sub-portion 31 includes a first side 311 and a second side 312 that are oppositely arranged along the first direction X, and the direction from the first side 311 to the second side 312 is the first direction.

[0114] The black matrix 30 further includes a second sub-portion 32 connected to the first sub-portion 31 , and the second sub-portion 32 extends into the pixel area 101 located at the first side 311 of the first sub-portion 31 .

[0115] In some embodiments, the second sub-portion 32 partially overlaps with the center of the pixel area 101 along the first direction X; further, a line connecting the center of the second sub-portion 32 and the center of the pixel area 101 is parallel to the first direction X.

[0116] In other embodiments of the present application, Fig.10 As shown, the black matrix 30 further includes a third sub-portion 33 connected to the first sub-portion 31 , and the third sub-portion 33 extends to the pixel area 101 located at a second side 312 of the first sub-portion 31 opposite to the first side 311 .

[0117] In some embodiments, the third sub-portion 33 partially overlaps with the center of the pixel area 101 along the first direction X; further, a line connecting the center of the third sub-portion 33 and the center of the pixel area 101 is parallel to the first direction X.

[0118] It should be noted that since the main portion 511 of the pixel electrode 51 is bent at the center of the pixel area 101, the comprehensive electric field generated by the pixel electrode 51 at the bending portion can easily cause the deflection of the liquid crystal molecules in the area to be disordered, and thus light leakage and oblique light emission can easily occur; and the embodiment of the present application adds the second sub-portion 32 and the third sub-portion 33 to the black matrix 30 to cover the bent pixel electrode 51 at the edge area of ​​the pixel area 101, thereby further blocking light leakage and oblique light emission and improving the contrast of the display panel.

[0119] In some embodiments, on the outer side of the bend of the pixel electrode 51, the length of light leakage at the edge of the pixel area 101 along the first direction X is shorter than the length along the second direction Y, and on the inner side of the bend of the pixel electrode 51, the length of light leakage at the edge of the pixel area 101 along the first direction X is longer than the length along the second direction Y; therefore, in the embodiment of the present application, the length of the second sub-portion 32 along the first direction X is shorter than the length of the third sub-portion 33 along the first direction X, and the length of the second sub-portion 32 along the second direction Y is longer than the length of the third sub-portion 33 along the second direction Y, so as to effectively block the light leakage and oblique light output according to the shape of the pixel electrode 51.

[0120] In some embodiments, a ratio of a length of the second sub-portion 32 along the second direction Y to a length of the third side 1011 of the pixel region 101 along the second direction Y is greater than or equal to one third and less than or equal to one half.

[0121] As mentioned above, the second sub-portion 32 and the third sub-portion 33 may be provided in the black matrix 30 at the same time, or only the second sub-portion 32 or the third sub-portion 33 may be provided.

[0122] In some embodiments of this application, please combine Figure 3 and Fig.11 As shown, the black matrix 30 also includes a fourth sub-portion 34 that at least covers the device area 102; wherein the fourth sub-portion 34 also extends along the second direction Y into the adjacent pixel area 101, and covers the end 512 of the pixel electrode 51, that is, the orthographic projection of the end 512 on the first substrate 11 is located within the orthographic projection of the fourth sub-portion 34 on the first substrate 11.

[0123] It is understandable that since the deflection of the liquid crystal molecules corresponding to the end 512 is prone to disorder, in the embodiment of the present application, the fourth sub-portion 34 covers the end 512, thereby further reducing the display unevenness of the display panel at the portion corresponding to the end 512.

[0124] In some embodiments of this application, please combine Figure 3 and Fig.12 As shown, the black matrix 30 also includes a fourth sub-portion 34 that at least covers the device area 102; wherein the fourth sub-portion 34 also extends along the second direction Y into the adjacent pixel area 101, and covers part of the end 512 of the pixel electrode 51, that is, the orthographic projection of part of the end 512 on the first substrate 11 is located within the orthographic projection of the fourth sub-portion 34 on the first substrate 11.

[0125] It is understandable that the fourth sub-portion 34 can cover part of the end 512 near the third side 1011 and the fourth side 1012, while exposing the rest of the end 512, thereby reducing light leakage and display unevenness while ensuring the transmittance of the pixel area 101.

[0126] It should be noted that in other embodiments of the present application, please refer to Fig.13 , this embodiment and Figure 8 The difference between the illustrated embodiment is that the light shielding portion 41 and the signal line segment 211 can also be arranged in parallel.

[0127] The first light-shielding sub-portion 411 partially overlaps with the first line segment 2111 , and the second light-shielding sub-portion 412 partially overlaps with the second line segment 2112 ; the first light-shielding sub-portion 411 is arranged parallel to the first line segment 2111 , and the second light-shielding sub-portion 412 is arranged parallel to the second line segment 2112 .

[0128] In summary, the embodiment of the present application adds the shading layer 40 in the display panel, and the shading layer 40 includes the shading portion 41 that at least partially overlaps with the signal line 21, and the shading portion 41 is at least partially located between the adjacent pixel areas 101. On the basis of the original shading effect of the black matrix 30, it can further play a shading effect on the light obliquely incident into the pixel area 101, reduce light leakage, reduce dark state brightness, and thus improve the contrast of the display panel.

[0129] In addition, if Fig.14 As shown, the embodiment of the present application further provides a display device 70 , which includes a backlight module 71 and a display panel 72 as described in the above embodiment, and the display panel 72 is arranged on the light emitting side of the backlight module 71 .

[0130] It can be understood that, since the display device 70 has the same display panel 72 as that in the above embodiment, the display device 70 has the same beneficial effects as the display panel 72 described in the above embodiment, which will not be described in detail here.

[0131] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0132] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0133] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0134] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a plurality of pixel areas arranged along a first direction and a second direction, wherein the first direction and the second direction intersect; The display panel further includes: a first substrate; A conducting layer, disposed on the first substrate, the conducting layer comprising a plurality of signal lines arranged along the first direction, and a plurality of pixel areas arranged along the second direction are disposed between two adjacent signal lines; A black matrix is ​​arranged on a side of the conductive layer away from the first substrate, and the black matrix is ​​arranged at least between two adjacent pixel areas along the first direction; a light shielding layer, disposed between the first substrate and the conductive layer, or between the conductive layer and the black matrix, the light shielding layer comprising a light shielding portion located between two adjacent pixel areas along the first direction; The orthographic projection of the light shielding portion on the first substrate at least partially overlaps with the orthographic projection of the signal line on the first substrate, and at least a portion of the light shielding portion extends into the pixel area.

2. The display panel according to claim 1, characterized in that: The signal line includes a signal line segment located between two adjacent pixel areas along the first direction, and the light shielding portion is arranged non-parallel to the signal line segment.

3. The display panel according to claim 2, characterized in that: The center of the light shielding portion does not coincide with the center of the signal line segment, and a line connecting the center of the light shielding portion and the center of the signal line segment is parallel to the first direction.

4. The display panel according to claim 3, characterized in that: The shading portion includes a first side edge and a second side edge that are arranged opposite to each other along the first direction, and between any two adjacent pixel areas along the first direction, a distance from the center of the signal line segment to the first side edge is greater than a distance from the center of the signal line segment to the second side edge.

5. The display panel according to claim 4, characterized in that: An overlapping area between one of the pixel regions located at the first side of the light shielding portion and the light shielding portion is greater than an overlapping area between one of the pixel regions located at the second side of the light shielding portion and the light shielding portion.

6. The display panel according to claim 4, characterized in that: The signal line segment includes a first line segment and a second line segment connected to each other, wherein the first line segment and the second line segment are connected at the center of the signal line segment, and the first line segment and the second line segment have a first angle toward the center of the shading portion and a second angle away from the center of the shading portion, wherein the first angle is smaller than the second angle.

7. The display panel according to claim 6, characterized in that: The light shielding portion is parallel to the second direction, and an acute angle between the light shielding portion and the first line segment is equal to an acute angle between the light shielding portion and the second line segment.

8. The display panel according to claim 6, characterized in that: The light shielding portion intersects with the second direction, and the light shielding portion includes a first light shielding sub-portion and a second light shielding sub-portion connected to each other, the first light shielding sub-portion and the second light shielding sub-portion are connected at the center of the light shielding portion, the first light shielding sub-portion overlaps with the first line segment, and the second light shielding sub-portion overlaps with the second line segment; The acute angle between the first light-shielding sub-portion and the first line segment is equal to the acute angle between the second light-shielding sub-portion and the second line segment.

9. The display panel according to claim 2, characterized in that: The acute angle between the light shielding portion and the signal line segment is greater than or equal to 5° and less than or equal to 15°.

10. The display panel according to claim 1, characterized in that: The signal line includes a signal line segment located between two adjacent pixel areas along the first direction, and the light shielding portion is arranged parallel to the signal line segment.

11. The display panel according to any one of claims 2 to 10, characterized in that: The black matrix includes a first sub-portion located between two adjacent pixel regions along the first direction, and the first sub-portion is parallel to the signal line segment.

12. The display panel according to claim 11, characterized in that: The black matrix further includes a second sub-portion connected to the first sub-portion, wherein the second sub-portion extends into the pixel area located at a first side of the first sub-portion; And / or, the black matrix also includes a third sub-portion connected to the first sub-portion, the third sub-portion extends to the pixel area located on a second side of the first sub-portion opposite to the first side, and the direction from the first side to the second side is the first direction.

13. The display panel according to claim 12, characterized in that: The second sub-portion partially overlaps with the center of the pixel area along the first direction, the third sub-portion partially overlaps with the center of the pixel area along the first direction, the length of the second sub-portion along the first direction is smaller than the length of the third sub-portion along the first direction, and the length of the second sub-portion along the second direction is greater than the length of the third sub-portion along the second direction.

14. The display panel according to claim 11, characterized in that: The display panel also includes a device area located between two adjacent pixel areas along the second direction, the display panel also includes a thin film transistor arranged on the first substrate and located in the device area, the thin film transistor is connected to the signal line, and the black matrix also includes a fourth sub-portion covering at least the device area.

15. The display panel according to claim 14, characterized in that: The display panel further includes: A plurality of pixel electrodes are arranged on a side of the conductive layer away from the first substrate, the plurality of pixel electrodes are arranged corresponding to the plurality of pixel regions, and the pixel electrodes in the pixel regions are connected to the thin film transistors in the device regions adjacent to each other along the second direction; The pixel electrode includes a main portion and ends located at opposite sides of the main portion along the second direction, and at least part of the orthographic projection of the end portions on the first substrate is located within the orthographic projection of the fourth sub-portion on the first substrate.

16. The display panel according to any one of claims 1 to 10, characterized in that: The light shielding layer is disposed between the conductive layer and the black matrix, and the display panel further includes: A second substrate is disposed on a side of the light shielding layer away from the first substrate, and the black matrix is ​​disposed on the second substrate and located on a side of the second substrate close to the light shielding layer; A common electrode is arranged on a side of the conductive layer away from the first substrate, the light shielding portion is connected to the common electrode, and the material of the light shielding layer includes a metal material; The liquid crystal layer is arranged between the common electrode and the black matrix.

17. The display panel according to any one of claims 1 to 10, characterized in that: Any of the pixel regions comprises a third side and a fourth side that are arranged opposite to each other along the first direction, and a length of the light shielding portion is smaller than a length of the third side.

18. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 17.

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