Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device. The color filter substrate of the display panel includes support columns, color filter structures and a black matrix. The black matrix includes first light-shielding strips extending along a first direction and second light-shielding strips extending along a second direction. The first light-shielding strips and the second light-shielding strips intersect to define a plurality of openings. At least part of the color filter structures is located in the openings. The support columns are located on a side of the black matrix close to a liquid crystal layer. The array substrate includes a planar layer and light-shielding structures extending along the first direction. The planar layer includes grooves and protruding structures. The protruding structures are formed between adjacent grooves. The grooves have openings facing the liquid crystal layer. In the thickness direction of the display panel, the support columns and the protruding structures at least partially overlap. The color filter structures and the grooves at least partially overlap. The first light-shielding strips and the light-shielding structures at least partially overlap. In the second direction, two adjacent light-shielding structures are separated by an opening. The present application can improve display color deviation and improve display effect.

Description

TECHNICAL FIELD

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

[0002] Liquid Crystal Display (LCD) is the most widely used display product in the market at present, and its production process technology is very mature, the product yield is high, the production cost is relatively low, and the market acceptance is high. Generally, the liquid crystal display panel is composed of a color film substrate, an array substrate, and liquid crystal and sealing frame glue sandwiched between the color film substrate and the array substrate. The display panel of the prior art has the problem of display color deviation, which still needs to be improved. SUMMARY

[0003] The embodiments of the present application provide a display panel and a display device to solve the problem of display color deviation and improve the display effect.

[0004] In a first aspect, the embodiments of the present application provide a display panel, which comprises an array substrate, a color film substrate and a liquid crystal layer, the liquid crystal layer being located between the array substrate and the color film substrate.

[0005] The color film substrate comprises a support column, a color film structure and a black matrix, the black matrix comprises a first light shielding strip extending along a first direction and a second light shielding strip extending along a second direction, the first direction and the second direction intersect each other, a plurality of first light shielding strips and a plurality of second light shielding strips intersect to define a plurality of openings, at least part of the color film structure is located in the openings, and the support column is located on the side of the black matrix close to the liquid crystal layer.

[0006] The array substrate comprises a planar layer and a light shielding structure extending along the first direction, the planar layer comprises a groove and a protruding structure, the protruding structure is formed between adjacent grooves, and the groove opening faces the liquid crystal layer; wherein,

[0007] Along the thickness direction of the display panel, the support column and the protruding structure at least partially overlap, the color film structure and the groove at least partially overlap, and the first light shielding strip and the light shielding structure at least partially overlap.

[0008] An opening is arranged between two adjacent light shielding structures in the second direction.

[0009] In a second aspect, based on the same inventive concept, the embodiments of the present application also provide a display device comprising the display panel provided by any of the embodiments of the present application.

[0010] The display panel and the display device provided by the embodiment of the present application have the following beneficial effects: the black matrix is made in the color film substrate, the light shielding structure is made in the array substrate, the black matrix comprises the first light shielding strip and the second light shielding strip which extend in the opposite directions, the light shielding structure and the first light shielding strip extend in the same direction, and the light shielding structure and the first light shielding strip at least partially overlap in the thickness direction of the display panel. An opening of the black matrix is arranged between two light shielding structures which are adjacent in the second direction. The light shielding structures are arranged relatively uniformly in the array substrate, so that the light shielding structure can be used to block the light between the adjacent sub-pixels at any sub-pixel position of the display panel, thereby improving the display color deviation and improving the display effect. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0012] Figure 1 FIG. 1 is a schematic diagram of a display panel in the related art;

[0013] Figure 2 FIG. 2 is a partial enlarged view of a region Q1 in FIG. 1; Figure 1

[0014] Figure 3 FIG. 3 is a sectional view of a position A-A' in FIG. 2; Figure 2

[0015] Figure 4 FIG. 4 is another partial enlarged view of the region Q1 in FIG. 1; Figure 1

[0016] Figure 5 FIG. 5 is a schematic diagram of a display panel provided by the embodiment of the present application;

[0017] Figure 6 FIG. 6 is a partial schematic diagram of a display panel provided by the embodiment of the present application;

[0018] Figure 7 FIG. 7 is a sectional view of a position B-B' in FIG. 6; Figure 6

[0019] Figure 8 FIG. 8 is another partial schematic diagram of a display panel provided by the embodiment of the present application;

[0020] Figure 9 FIG. 9 is a schematic diagram of a film layer structure of an array substrate in another display panel provided by the embodiment of the present application; FIG. 10 is a schematic diagram of a film layer structure of an array substrate in another display panel provided by the embodiment of the present application;​​​

[0021] Figure 10 For Figure 6 Another cross-sectional schematic view at the position of the tangent line B-B';

[0022] Figure 11 Another partial schematic view of a display panel according to an embodiment of the application;

[0023] Figure 12 For Figure 6 Another cross-sectional schematic view at the position of the tangent line B-B';

[0024] Figure 13 For Figure 6 Another cross-sectional schematic view at the position of the tangent line B-B';

[0025] Figure 14 Another partial schematic view of a display panel according to an embodiment of the application;

[0026] Figure 15 Another partial schematic view of a display panel according to an embodiment of the application;

[0027] Figure 16 For Figure 15 A cross-sectional schematic view at the position of the tangent line C-C';

[0028] Figure 17 For Figure 15 A film layer splitting schematic view at the position of the middle area Q2;

[0029] Figure 18 Another partial schematic view of a display panel according to an embodiment of the application;

[0030] Figure 19 For Figure 18 A cross-sectional schematic view at the position of the tangent line D-D';

[0031] Figure 20 Another partial schematic view of a display panel according to an embodiment of the application;

[0032] Figure 21 For Figure 20 A cross-sectional schematic view at the position of the tangent line E-E';

[0033] Figure 22 A schematic view of a display device according to an embodiment of the application. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0035] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0036] Figure 1 For a display panel schematic diagram in the related art, Figure 2 For Figure 1 A local enlarged view at a position of a region Q1 in the Figure 3 For Figure 2 A cross-sectional schematic view at a position of a tangent A-A' in the. Figure 4 For Figure 1 Another local enlarged view at a position of a region Q1 in the.

[0037] As Figure 1 shown, the display panel includes a display area AA and a non-display area NA, a plurality of block electrodes 001 and a plurality of signal lines 002 are arranged in the display area AA, and one block electrode 001 is electrically connected with at least one signal line 002. In a display stage, the block electrode 001 can be used as a common electrode; in a touch stage, the block electrode 001 is multiplexed as a touch electrode.

[0038] In combination with Figure 2 and Figure 3 , the display panel includes an array substrate 010 and a color film substrate 020, and a liquid crystal layer 030 between the two. The color film substrate 020 includes a black matrix BM and a color film structure 021, the black matrix BM has a plurality of openings, and the color film structure 021 is at least partially located in the openings of the black matrix BM, and one sub-pixel includes one opening and one color film structure 021. A first support column 004 and a second support column 003 are arranged on the side of the color film substrate 020 close to the liquid crystal layer 030, the height of the first support column 004 is less than the height of the second support column 003. A plurality of block electrodes 001 and a plurality of signal lines 002 are located on the array substrate 010, Figure 3 Only the signal lines 002 and the planar layer 011 in the array substrate 010 are indicated. From Figure 2 The top view can see that the signal lines 002 overlap the black matrix BM.

[0039] Figure 4 The flat layer 011, the first support column 004, the second support column 003 and the signal line 002 in the region Q1 are illustrated. Figure 3 As can be seen, the flat layer 011 has the first protruding structure 0111 and the second protruding structure 0112 extending in directions crossing each other, and the plurality of first protruding structures 0111 and the plurality of second protruding structures 0112 cross each other to define a plurality of grooves 0113. In the thickness direction of the display panel, the groove 0113 overlaps the opening of the black matrix BM, and the first support column 004 and the second support column 003 at least partially overlap the first protruding structure 0111, respectively. In application, the first support column 004 and the second support column 003 jointly play a supporting role between the array substrate 010 and the color film substrate 020, and when the display panel is subjected to force, the first protruding structure 0111 serves as a track for the left and right sliding of the first support column 004 and the second support column 003, and the second protruding structure 0112 serves as a track for the up and down sliding of the first support column 004 and the second support column 003, thereby avoiding damage to the alignment film when the support column slides. The groove 0113 is made on the flat layer 011 and the protruding structure is formed, which can meet the liquid crystal cell thickness requirement of the display panel.

[0040] In combination with Figure 3 and Figure 4 As can be seen, the signal line 002 is made on the side of the flat layer 011 close to the liquid crystal layer 030, and at least part of the trace of the signal line 002 is located in the groove 0113 of the flat layer 011. The signal line 002 is made of a metal material and has a certain light shielding effect, and the signal line 002 is equivalent to a light shielding structure made on the array substrate side. However, the signal line 002 is only arranged between part of the sub-pixels, which may cause display color deviation.

[0041] In order to solve the problems in the related art, the embodiments of the present application provide a display panel and a display device, a black matrix is made on the color film substrate side, and a light shielding structure is made on the array substrate side, the black matrix includes first light shielding strips and second light shielding strips extending in directions crossing each other, and is arranged in the thickness direction of the display panel, the first light shielding strips and the light shielding structure at least partially overlap, and one sub-pixel opening is arranged between adjacent two light shielding structures. By arranging the light shielding structures relatively uniformly on the array substrate side, the light shielding structures can be used to block the light between adjacent sub-pixels at any sub-pixel position of the display panel, thereby improving the display color deviation and improving the display effect.

[0042] Figure 5 A display panel provided by the embodiments of the present application is illustrated as follows, Figure 5As shown, the display panel includes gate lines 11 extending along a second direction x and data lines 12 extending along a first direction y. Multiple gate lines 11 and multiple data lines 12 intersect to define multiple sub-pixels 13. Each sub-pixel 13 includes a transistor T and a pixel electrode. Figure 5 (Not shown), the gate of transistor T is electrically connected to gate line 11, the source of transistor T is electrically connected to data line 12, the drain of transistor T is electrically connected to pixel electrode, and the pixel electrode and the common electrode in the display panel form storage capacitor Cst.

[0043] Figure 6 This is a partial schematic diagram of a display panel provided in an embodiment of the present invention. Figure 7 for Figure 6 A schematic diagram of a cross-section at the location of the tangent line BB′. Figure 8 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention.

[0044] Combination Figure 6 and Figure 7 The display panel includes an array substrate 20, a color filter substrate 30, and a liquid crystal layer 40, with the liquid crystal layer 40 located between the array substrate 20 and the color filter substrate 30.

[0045] The color filter substrate 30 includes a support post 31, a color filter structure 32, and a black matrix BM. The black matrix BM includes a first light-shielding strip 331 extending along a first direction y and a second light-shielding strip 332 extending along a second direction x. The first direction y and the second direction x intersect each other, and the plurality of first light-shielding strips 331 and the plurality of second light-shielding strips 332 intersect to define a plurality of openings 333. At least a portion of the color filter structure 32 is located within the openings 333. Each sub-pixel 13 corresponds to one opening 333, and each sub-pixel 13 includes one color filter structure 32. The color filter structure 32 includes a red color filter, a green color filter, and a blue color filter. For example, the red color filter has a light-filtering function, transmitting only red light and blocking green and blue light, thereby allowing the sub-pixel 13 including the red color filter to emit red light. The support post 31 is located on the side of the black matrix BM closest to the liquid crystal layer 40. The color filter substrate 30 also includes a protective layer 34 and a first substrate 35. The color filter structure 32 and the black matrix BM are fabricated on the first substrate 35. The protective layer 34 covers the side of the color filter structure 32 and the black matrix BM away from the first substrate 35, and the protective layer 34 also has a planarization function. The support pillar 31 is fabricated on the side of the protective layer 34 away from the black matrix BM.

[0046] The array substrate 20 comprises a flat layer 21 and light-shielding structures 22 extending along the first direction y, the flat layer 21 comprises recesses 211 and protruding structures 212, the protruding structures 212 are formed between adjacent recesses 211, and the slot of the recess 211 faces the liquid crystal layer 40. That is, a part of the flat layer 21 is hollowed out, the hollowed-out position forms the recess 211, and the part not hollowed out forms the protruding structure 212. The array substrate 20 further comprises a second substrate 23 and an array layer 24, and pixel electrodes and common electrodes, Figure 7 The pixel electrodes and common electrodes are not shown in the following Figure 9 , and reference can be made to the relevant description in the following The array layer 24 is located on the second substrate 23, the array layer 24 comprises a plurality of transistors T, the data line 12 and the gate line 11 are also located on the array layer 24, the flat layer 21 is made on the side of the array layer 24 away from the second substrate 23, and the pixel electrodes and common electrodes are located on the side of the flat layer 21 away from the second substrate 23. The pixel electrodes are connected to the transistors T through vias penetrating the flat layer 21. In addition, an alignment film is coated on the side of the array substrate 20 close to the liquid crystal layer 40, and / or an alignment film is coated on the side of the color film substrate 30 close to the liquid crystal layer 40. The alignment film is used for the alignment of the liquid crystal molecules in the liquid crystal layer 40.

[0047] , and reference can be made to the relevant description in the following

[0048] , and reference can be made to the relevant description in the following Figure 8 , and reference can be made to the relevant description in the following Figure 6 The same position in the display panel is shown, and the difference is Figure 8 The pattern of the flat layer 21 is shown but the black matrix BM is not shown. From Figure 6 , and reference can be made to the relevant description in the following Figure 8 It can be seen that the light-shielding structures 22 extend along the first direction y, the recesses 211 of the flat layer 21 and the openings 333 of the black matrix BM overlap each other, and an opening 333 is arranged between two adjacent light-shielding structures 22 along the second direction x. Then the light-shielding structures 22 extending along the first direction y can play a role of shielding light between adjacent sub-pixels 13.

[0049] The display panel provided by the embodiment of the present application has a black matrix BM formed in the color film substrate 30 and a light shielding structure 22 formed in the array substrate 20. The black matrix BM includes first light shielding strips 331 and second light shielding strips 332 extending in directions crossing each other. The light shielding structure 22 has the same extending direction as the first light shielding strips 331, and at least partially overlaps the first light shielding strips 331 in the thickness direction of the display panel. An opening 333 of the black matrix BM is arranged between two light shielding structures 22 adjacent in the second direction x. The light shielding structures 22 are arranged relatively uniformly in the array substrate 20, so that the light shielding structure 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, thereby improving the display color and enhancing the display effect.

[0050] The recess 211 is formed on the planar layer 21 of the array substrate 20, and the protruding structure 212 is formed between adjacent recesses 211. In the thickness direction e of the display panel, the recess 211 at least partially overlaps the color film structure 32, so that the recess 211 is arranged in the light path of the display panel, and the thickness of the planar layer 21 in the light path is reduced, thereby enhancing the light transmittance. At the same time, the recess 211 can further increase the thickness of the liquid crystal molecules in the sub-pixel at the position of the recess 211, that is, increase the cell gap of the liquid crystal cell, thereby meeting the requirement of the display panel on the cell gap.

[0051] In some embodiments, the width of the light shielding structure 22 in the first direction x is less than the width of the first light shielding strip 331 in the first direction x. Optionally, the width of the light shielding structure 22 in the first direction x is slightly less than the width of the first light shielding strip 331 by 1 micrometer. Figure 6 As shown in the top view, the orthographic projection of the first light shielding strip 331 on the paper covers the orthographic projection of the light shielding structure 22 on the paper.

[0052] As shown in the top view, the orthographic projection of the first light shielding strip 331 on the paper covers the orthographic projection of the light shielding structure 22 on the paper. Figures 6 to 8 As shown in the top view, the orthographic projection of the first light shielding strip 331 on the paper covers the orthographic projection of the light shielding structure 22 on the paper. Figure 7It can be seen that the height H1 of the first support column 311 is less than the height H2 of the second support column 312. Along the thickness direction e of the display panel, the first support column 311 and the second support column 312 at least partially overlap with the protruding structure 212, respectively. The second support column 312 plays a role of mainly supporting the thickness of the liquid crystal cell. When the display panel is pressed by external force, the second support column 312 overlapping with the protruding structure 212 is first pressed, and the height of the second support column 312 is reduced as the thickness of the liquid crystal cell is reduced. When the second support column 312 is compressed to the same height as the first support column 311, the first support column 311 and the second support column 312 jointly support the thickness of the cell, ensure that the thickness of the display panel at each position is uniform, so that the liquid crystal molecules in the liquid crystal cell can fill the entire space in the cell, thereby avoiding the risk of uneven distribution of liquid crystal molecules caused by uneven cell thickness, and further avoiding the risk of display color deviation.

[0053] Figure 9 Another schematic diagram of a film layer structure of an array substrate in a display panel is provided for an embodiment of the present application. As shown in the figure, Figure 9 The array substrate 20 includes a second substrate 23, an array layer 24, and a planar layer 21. The array layer 24 includes a plurality of transistors T, which serve as switches of the sub-pixels 13. Figure 9 The transistors T are shown as top-gate structures, but in other embodiments, the transistors T can also be bottom-gate structures. The planar layer 21 is located on a side of the array layer 24 away from the second substrate 23, Figure 9 For the purpose of illustrating the film layer structure of the array substrate 20, the recesses 211 and the protruding structures 212 of the planar layer 21 are not shown. The signal lines 25, the common electrodes 26, and the pixel electrodes 27 are all located on a side of the planar layer 21 away from the second substrate 23. The signal lines 25 are electrically connected to the common electrodes 26 through vias penetrating the insulating layer. The pixel electrodes 27 are electrically connected to the transistors T through vias penetrating the planar layer 21 and the insulating layer above the planar layer 21. In addition, it can be seen that the storage capacitors Cst of the sub-pixels 13 are formed at the positions where the pixel electrodes 27 and the common electrodes 26 overlap.

[0054] In some embodiments, the embodiment of the present application includes a plurality of block-shaped common electrodes, and one common electrode is electrically connected to at least one signal line. The arrangement of the common electrodes and the signal lines is basically the same as Figure 1 Therefore, it is not shown here. The plurality of common electrodes 26 are located in the array substrate 20. In the display stage, the common electrodes 26 cooperate with the pixel electrodes 27 to drive the liquid crystal molecules at the positions of the sub-pixels 13; in the touch stage, the common electrodes 26 can be reused as touch electrodes.

[0055] As Figure 8As shown, the light shielding structure includes a first light shielding structure 221; wherein one common electrode is electrically connected with at least one first light shielding structure 221. In other words, the signal line 25 connected with the common electrode is multiplexed as the first light shielding structure 221. In combination with Figure 9 As shown, the first light shielding structure 221 is located on the side of the planar layer 21 close to the liquid crystal layer 40, and the common electrode 26 is located on the side of the first light shielding structure 221 away from the second substrate 23, that is, the common electrode 26 is located on the side of the first light shielding structure 221 close to the liquid crystal layer 40.

[0056] As shown, the groove 211 includes a first groove 211a. In combination with Figures 6 to 8 As shown, the first groove 211a overlaps with at least two color filter structures 32 adjacent in the second direction x; at least part of the first light shielding structure 221 is located in the first groove 211. That is, the groove 211 at other positions can overlap with one color filter structure 32; while at the position where the first light shielding structure 221 is arranged, the first groove 211a where the first light shielding structure 221 is located overlaps with at least two color filter structures 32. In this way, the stacking height at the position where the first light shielding structure 221 is located can be reduced. Optionally, as shown, Figure 7 As shown, in the display panel thickness direction e, the thickness of the first light shielding structure 221 is equal to the depth h1 of the first groove 211a. For example, h1 is about 0.5 μm or so.

[0057] In this embodiment, the signal line 25 electrically connected with the block-shaped common electrode 26 is multiplexed as the first light shielding structure 221, and the first light shielding structure 221 cooperates with the light shielding structure 22 at other positions, so that the light shielding structure 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, thereby improving the display color cast and improving the display effect. In addition, at least part of the first light shielding structure 221 is arranged in the first groove 211, which can reduce the stacking height at the position where the first light shielding structure 221 is located, and avoid adversely affecting the cell thickness of the display panel.

[0058] In some embodiments, at some positions of the display panel, the first light shielding structure 221 is arranged between adjacent green sub-pixels and blue sub-pixels.

[0059] In some embodiments, as shown, Figure 8As shown, the protruding structure 212 includes a first protruding structure 212a extending along the second direction x; the light shielding structure 22 includes a first light shielding structure 221 and a second light shielding structure 222, at least part of the first light shielding structure 221 is located in the first groove 211, and at least part of the second light shielding structure 222 is cut off at the position of the first protruding structure 212a. The second light shielding structure 222 is arranged not to overlap the first protruding structure 212a, which can avoid increasing the stacking height at the position of the first protruding structure 212a. For example, at the position where the first protruding structure 212a overlaps the support column 31, a certain space can be left between the two for abutting position, so as to avoid the abutting position being in contact when the display panel bears a relatively small external force, which affects the extrusion resistance of the display panel.

[0060] Further, in combination with Figure 7 and Figure 8 As shown, the support column 31 includes a first support column 311 and a second support column 312; the height of the first support column 311 is less than the height of the second support column 312; along the thickness direction e of the display panel, the first support column 311 and the second support column 312 at least partially overlap the first protruding structure 212a respectively; the first support column 311 is provided with two second light shielding structures 222 on both sides thereof in the first direction y, and the second support column 312 is provided with one second light shielding structure 222 on each side thereof in the first direction y. In some embodiments, as shown in Figure 8 the second light shielding structure 222 overlaps the protruding structure 212. In other embodiments, the second light shielding structure 222 is located in the groove 211 of the flat layer 21, which will be illustrated in the related embodiments below.

[0061] In this embodiment, the second light shielding structure 222 cooperates with the first light shielding structure 221, so that the light shielding structure 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, thereby improving the display color cast and improving the display effect. In addition, when the display panel bears an external force, the second light shielding structure 222 provided on both sides of the first support column 311 and the second support column 312 in the first direction y can resist the sliding of the support column 31 in the first direction y or act as a sliding track of the two support columns 31 in the first direction y, preventing the support column 31 from scratching the alignment film near the opening position of the black matrix BM and causing abnormal liquid crystal deflection and display abnormality.

[0062] In some embodiments, as shown in Figure 7 and Figure 8As shown, the protruding structure 212 includes a first protruding structure 212a extending along the second direction x and a second protruding structure 212b extending along the first direction y; along the display panel thickness direction e, at least part of the second light shielding structure 222 overlaps with the second protruding structure 212b; wherein the second light shielding structure 222 is located in the same layer as the first light shielding structure 221. In this embodiment, at least part of the second light shielding structure 222 is arranged to overlap with the second protruding structure 212b, when the display panel is subjected to external force, the second light shielding structure 222 arranged on both sides of the first support column 311 and the second support column 312 in the first direction y can resist the sliding of the support column 31 in the first direction y, preventing the support column 31 from scratching the alignment film and causing abnormal liquid crystal deflection. In addition, the second light shielding structure 222 is located in the same layer as the first light shielding structure 221, so they can be manufactured in the same process, and the cooperation of the second light shielding structure 222 and the first light shielding structure 221 can improve the display color cast without increasing new process.

[0063] In addition, the second light shielding structure 222 is located in the same layer as the first light shielding structure 221, so along the display panel thickness direction e, the height of the second light shielding structure 222 is equal to the height of the first light shielding structure 221.

[0064] In other embodiments, Figure 7 In the embodiment, the second light shielding structure 222 includes a black material. Optionally, the second light shielding structure 222 is made of the same material as the black matrix BM.

[0065] In other embodiments, the second light shielding structure 222 is located in the through slot. Figure 10 For Figure 6 Another schematic view of another cross section at the position of the tangent line B-B'. Figure 11 Another schematic view of another display panel provided by the embodiment of the present application. Figure 11 And Figure 6 The same position in the display panel is shown, the difference is Figure 11 The pattern of the planarization layer 21 is shown but the black matrix BM is not shown.

[0066] As Figure 11 As shown, the groove 211 of the planarization layer 21 includes a through slot 211C extending along the second direction x. In combination with Figure 6 And Figure 11 As shown, the groove 211 of the planarization layer 21 includes a through slot 211C extending along the second direction x. In combination with Figure 10As illustrated, at least a portion of the first light-shielding structure 221 and at least a portion of the second light-shielding structure 222 are located within the through groove 211C. This arrangement ensures that the distances of the first light-shielding structure 221 and the second light-shielding structure 222 from the second substrate 23 of the array substrate 20 are substantially the same, resulting in comparable light-shielding capabilities for both structures. This is more conducive to balancing the light output of different sub-pixels and improving color shift. Furthermore, placing the second light-shielding structure 222 within the through groove 211C ensures that the surface of the second light-shielding structure 222 away from the second substrate 23 is substantially flush with the surface of the first protrusion structure 212a away from the second substrate 23. When the display panel is subjected to external force, the second light-shielding structures 222, located on both sides of the first support pillar 311 and the second support pillar 312 in the first direction y, can serve as tracks for the sliding of the two types of support pillars 31 in the first direction y, preventing the support pillars 31 from scratching the alignment film, which could lead to abnormal liquid crystal deflection and consequently display abnormalities.

[0067] In some embodiments, the second light-shielding structure 222 and the first light-shielding structure 221 are located on the same layer. Both the second light-shielding structure 222 and the first light-shielding structure 221 are made of metal and can be manufactured in the same process. The second light-shielding structure 222 and the first light-shielding structure 221 are used together to improve the color deviation of the display without adding new processes.

[0068] like Figure 10 As shown, along the thickness direction e of the display panel, the depth h2 of the through groove 211C is equal to the thickness d of the second light-shielding structure 222. This arrangement allows the second light-shielding structure 222 to be positioned within the through groove 211C, such that the surface of the second light-shielding structure 222 away from the second substrate 23 is substantially flush with the surface of the first protrusion structure 212a away from the second substrate 23. When the display panel is subjected to external force, the second light-shielding structure 222, positioned on both sides of the first support pillar 311 and the second support pillar 312 in the first direction y, can serve as a track for the sliding of the two support pillars 31 in the first direction y, preventing the support pillars 31 from scratching the alignment film, causing abnormal liquid crystal deflection, and consequently leading to display abnormalities.

[0069] In other implementations, Figure 12 for Figure 6 Another cross-sectional diagram at the location of the tangent BB′. (See diagram below.) Figure 12As shown, the groove 211 of the flat layer 21 includes a through groove 211C extending along the second direction x. The plurality of color film structures 32 arranged along the second direction x overlap the through groove 211C. The first light shielding structure 221 and the second light shielding structure 222 are both located in the through groove 211C. The first light shielding structure 221 includes a metal material, and the second light shielding structure 222 includes a black material having a function of shielding light. In this embodiment, the first light shielding structure 221 and the second light shielding structure 222 are respectively manufactured, and the two light shielding structures are used to improve display color cast by cooperating with each other.

[0070] In some embodiments, Figure 12 In the embodiment, the material of the second light shielding structure 222 is the same as that of the black matrix BM. The second light shielding structure 222 is used to improve display color cast in cooperation with the first light shielding structure 221, and the manufacturing material of the second light shielding structure 222 is easy to obtain and the process is simple.

[0071] In some other embodiments, Figure 13 For Figure 6 Another schematic view of a cross section at the position of the tangent line B-B' is shown. Figure 14 Another schematic view of a partial display panel provided by the embodiment of the present application is shown. Figure 14 And Figure 6 The same position in the display panel is shown, and the difference is that Figure 14 The pattern of the flat layer 21 is shown but the black matrix BM is not shown.

[0072] In combination with Figure 13 And Figure 14 , the first protruding structure 212a of the protruding structure 212 extending along the second direction x and the second protruding structure 212b extending along the first direction y, the light shielding structure 22 includes the first light shielding structure 221 and the second light shielding structure 222, at least part of the first light shielding structure 221 is located in the first groove 211, and at least part of the second light shielding structure 222 is located at the position of the first protruding structure 212a. The array substrate 20 includes the gate line 11 extending along the second direction x (such as Figure 5 Schematically), and the second light shielding structure 222 is located in the array layer 24, and the second light shielding structure 222 is in the same layer as the gate line 11.

[0073] In combination with Figure 5As shown in FIG. 1, the display panel includes data lines 12 extending along a first direction y and gate lines 11 extending along a second direction x. The data lines 12 and the gate lines 11 are located in different film layers in the array layer 24. The second light shielding structure 222 is formed in the same layer as the gate lines 11, and is arranged to be cut off at the position of the first protruding structure 212a. The second light shielding structure 222 is thus formed in the same layer as the gate lines 11 and is insulated from the gate lines 11. The first light shielding structure 221 and the second light shielding structure 222 are cooperated to uniformly arrange the light shielding structures 22 in the array substrate 20. The light shielding structures 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, so as to improve the display color cast and improve the display effect.

[0074] In some other embodiments, the display panel does not include the first light shielding structure 221, and a plurality of light shielding structures formed in the same layer as the gate lines 11 can be used to block the light between adjacent sub-pixels and improve the display color cast.

[0075] In some other embodiments, the light shielding structure includes the first light shielding structure, the second light shielding structure, and a third light shielding structure. Figure 15 FIG. 2 is another partial schematic view of a display panel according to an embodiment of the present application, Figure 16 FIG. 3 is a schematic view of a cross section of the display panel along a cutting line C-C' in FIG. 2. Figure 15 FIG. 4 is another partial schematic view of a display panel according to an embodiment of the present application. Figure 15 The black matrix BM is not shown in FIG. 4, and can be understood with reference to the related embodiments described above.

[0076] In combination with Figure 15 and Figure 16 As shown in FIG. 1, the display panel includes data lines 12 extending along a first direction y and gate lines 11 extending along a second direction x. The data lines 12 and the gate lines 11 are located in different film layers in the array layer 24. The second light shielding structure 222 is formed in the same layer as the gate lines 11, and is arranged to be cut off at the position of the first protruding structure 212a. The second light shielding structure 222 is thus formed in the same layer as the gate lines 11 and is insulated from the gate lines 11. The first light shielding structure 221 and the second light shielding structure 222 are cooperated to uniformly arrange the light shielding structures 22 in the array substrate 20. The light shielding structures 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, so as to improve the display color cast and improve the display effect. Figure 15 As shown in FIG. 3, the first sub-portion 3a has a width along the second direction x that is greater than a width along the second direction x of the second sub-portion 3b.

[0077] The support column 31 includes a first support column 311 and a second support column 312. As shown in FIG. 4, the first support column 311 is located in the first protruding structure 212a, and the second support column 312 is located in the third light shielding structure 223. Figure 16It can be seen that the height of the first support column 311 and the height of the second support column 312 are equal. Along the thickness direction e of the display panel, the first support column 311 and the first protruding structure 212a at least partially overlap, and the second support column 312 and the first sub-portion 3a at least partially overlap. The first support column 311 is provided with two second light shielding structures 222 on both sides of the first direction y, respectively, and the second support column 312 is provided with one second sub-portion 3b on both sides of the first direction y, respectively.

[0078] In this embodiment, the first light shielding structure 221, the second light shielding structure 222 and the third light shielding structure 223 cooperate to make the light shielding structures 22 relatively uniformly arranged in the array substrate 20, so that the light shielding structures 22 can be used to block the light between adjacent sub-pixels 13 at any position of the display panel, thereby improving the display color deviation and improving the display effect.

[0079] In addition, the second light shielding structure 222 is at least partially located in the through slot 211C, and at least part of the second light shielding structure 222 is cut off at the position of the first protruding structure 212a, which is beneficial to realize that the surface of the second light shielding structure 222 away from the second substrate 23 is substantially flush with the surface of the first protruding structure 212a away from the second substrate 23. The first sub-portion 3a of the third light shielding structure 222 at least partially overlaps with the first protruding structure 212a, so that the first sub-portion 3a is formed with a step difference at the position of the first sub-portion 3a and the first protruding structure 212a at other positions. In this way, the first support column 311 and the second support column 312 can be set to have the same height, and the two kinds of support columns can also be made to have different space distances at the positions of the opposite top, such as the distance between the second support column 312 and the first sub-portion 3a overlapping with it is less than the distance between the first support column 311 and the first protruding structure 212a overlapping with it. Moreover, the first support column 311 and the second support column 312 have the same height, and the manufacturing process of the two is relatively simple.

[0080] When the display panel is subjected to external pressure, the second support column 312, which overlaps with the first portion 3a, is the first to be compressed. As the thickness of the liquid crystal cell decreases, the height of the second support column 312 decreases, and the third light-shielding structure 223 can serve as a track for the second support column 312 to slide in the first direction y, preventing the second support column 312 from being squeezed and scratching the alignment film. When the external force on the display panel increases, the first support column 311 is also compressed at the same time. At this time, the first support column 311 and the second support column 312 jointly support the cell thickness, ensuring that the cell thickness is consistent at all positions of the display panel, so that the liquid crystal molecules in the liquid crystal cell can fill the entire cell space, thereby avoiding uneven distribution of liquid crystal molecules due to uneven cell thickness, which could lead to the risk of color deviation in the display. Moreover, when the first support column 311 is compressed, the second light-shielding structures 222 on both sides of the first support column 311 can serve as a track for the first support column 311 to slide in the first direction y, preventing the first support column 311 from being squeezed and scratching the alignment film.

[0081] In some embodiments, the second light-shielding structure 222, the third light-shielding structure 223, and the first light-shielding structure 221 are located in the same layer. The three light-shielding structures can be manufactured using the same materials in the same process, simplifying the manufacturing process.

[0082] In some implementations... Figure 17 for Figure 15 A schematic diagram of film layer separation at position Q2 in the central region. (See diagram below.) Figure 17 As shown, at location Q2, it includes at least a first sub-section 2a of a first protruding structure 212a, a first portion 3a of a third light-shielding structure 223, and a second support column 312. Combined with... Figure 16 Looking at the surface of the first sub-section 2a near the liquid crystal layer 40, it is a flat surface; the portion of the third light-shielding structure 223 that overlaps with the first sub-section 2a is the first sub-section 3a. Figure 17 It can be seen that the length of the first portion 3a in the first direction y is greater than the minimum length of the second support column 312 in the first direction y, and the length of the first portion 3a in the second direction x is greater than the minimum length of the second support column 312 in the second direction x. It can also be seen that the length of the first sub-part 2a in the first direction y is greater than the minimum length of the second support column 312 in the first direction y, and the length of the first sub-part 2a in the second direction x is greater than the minimum length of the second support column 312 in the second direction x.

[0083] In this embodiment, the first portion 3a of the third light-shielding structure 223 and the first sub-portion 2a of the first protrusion structure 212a are stacked. The area where the first portion 3a is located is equivalent to the outward expansion area, which provides a sliding area for the second support column 312. The outward expansion area has a relatively flat surface. When the display panel is subjected to external pressure, the second support column 312 can slide within the outward expansion area, preventing the second support column 312 from scratching the alignment film.

[0084] In other implementations, Figure 18 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention. Figure 19 for Figure 18 A schematic diagram of a cross-section at the location of the tangent line DD′. (Combined with...) Figure 18 and Figure 19 The light-shielding structure 22 includes a first light-shielding structure 221, a second light-shielding structure 222, and a third light-shielding structure 223. The recess 211 of the planarization layer 21 includes a through-slot 211C extending along the second direction x. The third light-shielding structure 223 is located on the side of the planarization layer 21 closer to the liquid crystal layer 40. The third light-shielding structure 223 includes a first portion 3a and a second portion 3b connected to each other. Along the thickness direction e of the display panel, the first portion 3a at least partially overlaps with the first protrusion structure 212a. At least a portion of the first light-shielding structure 221, at least a portion of the second light-shielding structure 222, and the second portion 3b of the third light-shielding structure 223 are located within the through-slot 211C. This arrangement ensures that the distances from the first light-shielding structure 221, the second light-shielding structure 222, and the second portion 3b of the third light-shielding structure 223 to the second substrate 23 are substantially the same; in other words, with the second substrate 23 as a reference plane, the three are essentially located at the same height above the second substrate 23. Each light-blocking structure has a similar ability to block light, which is more conducive to balancing the light output of different sub-pixels and improving color shift.

[0085] In some implementations... Figure 20 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention. Figure 20 Only a portion of the structure in the display panel is shown. Figure 21 for Figure 20 A schematic diagram of a cross-section at the location of the tangent line EE′. (Combined with...) Figure 20 and Figure 21 The protrusion structure 212 includes a first protrusion structure 212a extending along the second direction x and a second protrusion structure 212b extending along the first direction y; the light-shielding structure 22 extends along the first direction y and terminates at the location of the first protrusion structure 212a. The array substrate 20 includes gate lines 11 extending along the second direction x (e.g., Figure 5 (Illustrated in the diagram) The light-shielding structure 22 is on the same layer as the gate line 11. In this embodiment, the light-shielding structure 22 is fabricated on the same layer as the gate line 11. The light-shielding structure 22 can block the light between sub-pixels 13 at any adjacent position on the display panel on the array substrate 20 side, thereby improving the display color shift and enhancing the display effect.

[0086] Based on the same inventive concept, embodiments of the present invention provide a display device. Figure 22 This is a schematic diagram of a display device provided in an embodiment of the present invention, such as... Figure 22As shown, the display device comprises the display panel 100 provided by any of the embodiments of the present application. The structure of the display panel 100 has been described in the above embodiments, and will not be repeated here. The display device provided by the embodiments of the present application may be, for example, a mobile phone, a tablet, a computer, a television, a smart wearable product, or any other electronic device having a display function.

[0087] The above merely provides the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0088] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that, The display panel includes an array substrate, a color filter substrate, and a liquid crystal layer, wherein the liquid crystal layer is located between the array substrate and the color filter substrate; The color filter substrate includes a support pillar, a color filter structure, and a black matrix. The black matrix includes a first light-shielding strip extending along a first direction and a second light-shielding strip extending along a second direction. The first direction and the second direction intersect each other. A plurality of first light-shielding strips and a plurality of second light-shielding strips intersect to define a plurality of openings. At least a portion of the color filter structure is located within the openings. The support pillar is located on the side of the black matrix closer to the liquid crystal layer. The array substrate includes a planarization layer and a light-shielding structure extending along the first direction. The planarization layer includes grooves and protrusions, with the protrusions formed between adjacent grooves. The openings of the grooves face the liquid crystal layer. Along the thickness direction of the display panel, the support column and the protrusion structure at least partially overlap, the color filter structure and the groove at least partially overlap, and the first light-shielding strip and the light-shielding structure at least partially overlap; an opening is spaced between two adjacent light-shielding structures in the second direction; The light-shielding structure includes a first light-shielding structure; the array substrate includes a plurality of common electrodes, one of the common electrodes being electrically connected to at least one of the first light-shielding structures, the first light-shielding structure being located on the side of the planarization layer near the liquid crystal layer, and the common electrode being located on the side of the first light-shielding structure near the liquid crystal layer; wherein, the groove includes a first groove, the first groove overlapping with at least two color filter structures adjacent in the second direction; at least a portion of the first light-shielding structure is located within the first groove; The protruding structure includes a first protruding structure extending along the second direction; the light-shielding structure includes a second light-shielding structure, at least a portion of the second light-shielding structure ending at the location of the first protruding structure.

2. The display panel according to claim 1, characterized in that, The support column includes a first support column and a second support column; the height of the first support column is less than the height of the second support column; along the thickness direction of the display panel, the first support column and the second support column respectively at least partially overlap with the first protrusion structure; The first support column has two second light-shielding structures on each side of the first direction, and the second support column has one second light-shielding structure on each side of the first direction.

3. The display panel according to claim 1, characterized in that, The protruding structure includes a second protruding structure extending along the first direction; along the thickness direction of the display panel, at least a portion of the second light-shielding structure overlaps with the second protruding structure; The second light-shielding structure is located on the same layer as the first light-shielding structure.

4. The display panel according to claim 1, characterized in that, The groove includes a through slot extending along the second direction; a plurality of color filter structures arranged in the second direction overlap with the through slot; at least a portion of the second light-shielding structure is located within the through slot.

5. The display panel according to claim 4, characterized in that, The second light-shielding structure is located on the same layer as the first light-shielding structure.

6. The display panel according to claim 4, characterized in that, The second light-shielding structure comprises a black material.

7. The display panel according to claim 6, characterized in that, The material of the second light-shielding structure is the same as the material of the black matrix.

8. The display panel according to claim 4, characterized in that, Along the thickness direction of the display panel, the depth of the through slot is equal to the thickness of the second light-shielding structure.

9. The display panel according to claim 1, characterized in that, The array substrate includes gate lines extending along the second direction; The second light-shielding structure is on the same layer as the grid line.

10. The display panel according to claim 4, characterized in that, The light-shielding structure includes a third light-shielding structure located on the side of the planarization layer closer to the liquid crystal layer; the third light-shielding structure includes a first portion and a second portion connected to each other; along the thickness direction of the display panel, the first portion at least partially overlaps with the first protrusion structure; The support column includes a first support column and a second support column; the height of the first support column and the height of the second support column are equal; along the thickness direction of the display panel, the first support column and the first protrusion structure overlap at least partially, and the second support column and the first portion overlap at least partially. The first support column has two second light-shielding structures on each side of the first direction, and the second support column has a second portion on each side of the first direction.

11. The display panel according to claim 10, characterized in that, The second light-shielding structure, the third light-shielding structure, and the first light-shielding structure are located in the same layer.

12. The display panel according to claim 10, characterized in that, The first protrusion structure includes a first sub-part, the surface of the first sub-part near the liquid crystal layer being a flat surface; the portion of the third light-shielding structure overlapping the first sub-part is the first sub-part; The length of the first portion in the first direction is greater than the minimum length of the second support column in the first direction, and the length of the first portion in the second direction is greater than the minimum length of the second support column in the second direction.

13. The display panel according to claim 10, characterized in that, The second portion is located within the through groove.

14. The display panel according to claim 1, characterized in that, The light-shielding structure ends at the location of the first protruding structure; The array substrate includes gate lines extending along the second direction, and the light-shielding structure is on the same layer as the gate lines.

15. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1 to 14.

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