Display panel and display device

Abstract

The utility model discloses a display panel and a display device. The display panel and the display device are used for avoiding uneven display caused by the fact that a spacer scratches an alignment film. The display panel comprises a first substrate and a second substrate which are oppositely arranged; the first base plate comprises a first substrate base plate; the second base plate comprises a second substrate base plate; a plurality of supporting structures located in the display area are further arranged between the first substrate and the second substrate. The plurality of supporting structures comprise a plurality of first supporting structures, a plurality of second supporting structures and a plurality of third supporting structures; the second supporting structure is adjacent to the first supporting structure in the first direction or the second direction, and the third supporting structure is not adjacent to the first supporting structure in the first direction or the second direction; the second supporting structure comprises a first auxiliary spacer; at least part of the second supporting structure further comprises a retaining wall structure; the first auxiliary spacer is provided with a first surface facing one side of the second substrate; the first surface is not in contact with the retaining wall structure.

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] In the prior art, in order to maintain a uniform distribution of the cell thickness in the liquid crystal display panel, it is necessary to set a plurality of main spacers in the non-display area on the color film substrate, so that in the initial state, the main spacers are in a compressed state and maintain a certain compression ratio, thereby supporting the cell thickness and maintaining the uniformity of the cell thickness.

[0003] However, when the liquid crystal display panel is subjected to external force, the array substrate and the color filter substrate are displaced relative to each other, and the main spacer in a compressed state will repeatedly rub the alignment film of the opposite substrate, causing damage to the alignment film. The damaged alignment film falls to the sub-pixel opening area to form debris, and bright spots appear at the debris, resulting in uneven display. In addition, if the main spacer slides too far, it will scratch the alignment film in the sub-pixel opening area, causing the liquid crystal light valve in the area where the alignment film is scratched to lose its function, resulting in PSMura-type defects (see attached). Figure 3 ), affecting product quality. Utility Model Content

[0004] The embodiments of the present application provide a display panel and a display device, which are used to prevent uneven display caused by spacers scratching an alignment film.

[0005] An embodiment of the present application provides a display panel, the display panel comprising: a first substrate and a second substrate arranged opposite to each other; the display panel comprises a display area;

[0006] The first substrate includes: a first base substrate; the second substrate includes a second base substrate; and a plurality of support structures located in the display area are provided between the first base substrate and the second base substrate;

[0007] The plurality of support structures are arranged in an array along a first direction and a second direction, and the first direction intersects the second direction; the plurality of support structures include: a plurality of first support structures, a plurality of second support structures, and a plurality of third support structures; the second support structures are adjacent to the first support structures in the first direction or in the second direction, and the third support structures are not adjacent to the first support structures in the first direction or in the second direction;

[0008] The second supporting structure includes: a first auxiliary spacer; at least part of the second supporting structure also includes: a retaining wall structure;

[0009] The first substrate includes a first supporting structure, a first auxiliary spacer and a third supporting structure, and the second substrate includes a retaining wall structure;

[0010] The surface of the first supporting structure facing away from the first substrate is in contact with the second substrate, and the surface of the first auxiliary spacer facing away from the first substrate and the surface of the third supporting structure facing away from the first substrate are not in contact with the second substrate;

[0011] The surface of the retaining wall structure facing away from the second substrate is not in contact with the first substrate;

[0012] The first auxiliary spacer has a first surface facing the second substrate; the first surface is not in contact with the retaining wall structure.

[0013] In some embodiments, at least two second support structures adjacent to the first support structure include retaining wall structures.

[0014] In some embodiments, the retaining wall structure has a second surface facing a side of the first substrate;

[0015] The distance from the second surface to the first substrate is smaller than the distance from the first surface to the first substrate.

[0016] In some embodiments, an orthographic projection of the retaining wall structure on the first substrate surrounds an orthographic projection of the first surface on the first substrate.

[0017] In some embodiments, the pattern of the orthographic projection of the retaining wall structure on the first substrate is a stripe;

[0018] The orthographic projection of the retaining wall structure on the first substrate is located on a side of the first surface where the orthographic projection of the first substrate is away from the first supporting structure adjacent thereto; or,

[0019] The orthographic projection of the retaining wall structure on the first substrate is located on a side of the first surface where the orthographic projection of the first substrate is away from the first supporting structure adjacent to the first surface.

[0020] In some embodiments, the first substrate further includes: a black matrix and a color resist located on a side of the first substrate facing the second substrate, and the second substrate further includes: a driving circuit located on a side of the second substrate facing the first substrate, and a planarization layer located on a side of the driving circuit facing the first substrate; or, the second substrate further includes: a black matrix and a plurality of color resists located on a side of the second substrate facing the first substrate, and the first substrate further includes: a driving circuit located on a side of the first substrate facing the second substrate, and a planarization layer located on a side of the driving circuit facing the second substrate;

[0021] The black matrix includes a plurality of opening areas arranged in an array, and the color resist is at least located in the opening area; the orthographic projection of the supporting structure on the first base substrate is located within the orthographic projection of the black matrix on the first base substrate.

[0022] In some embodiments, the first supporting structure, the first auxiliary spacer and the third supporting structure are located on a side of the black matrix away from the first substrate, and the retaining wall is located on a side of the planarization layer away from the second substrate; or,

[0023] The first supporting structure, the first auxiliary spacer and the third supporting structure are located on the side of the planarization layer away from the first substrate, and the retaining wall is located on the side of the black matrix away from the second substrate.

[0024] In some embodiments, the material of the retaining wall structure is the same as that of the first supporting structure, the first auxiliary spacer, and the third supporting structure.

[0025] In some embodiments, the first supporting structure, the first auxiliary spacer, and the third supporting structure are located on a side of the planarization layer away from the first base substrate; the plurality of color resists include n color resists with different light emitting colors, where n is an integer greater than 1;

[0026] The retaining wall is located on a side of the black matrix away from the second base substrate, and the retaining wall structure includes n sub-retaining walls stacked in layers, and one sub-retaining wall and a color block of one light emitting color are formed in the same patterning process.

[0027] In some embodiments, the driving circuit includes multiple conductive layers located at different levels;

[0028] The retaining wall structure includes a substructure arranged on the same layer as the multi-layer conductive layer and part of the film layers in the planarization layer.

[0029] In some embodiments, the multi-layer conductive layer includes: a first conductive layer, the first conductive layer includes a plurality of data lines, a source electrode and a drain electrode of a thin film transistor; the orthographic projections of the plurality of data lines, the source electrode and the drain electrode on the first substrate are located within the orthographic projection of the black matrix on the first substrate;

[0030] The retaining wall structure includes: a first substructure disposed in the same layer as the planarization layer, and a second substructure located in the first conductive layer;

[0031] The second substructure is disconnected from the data line, the source electrode and the drain electrode.

[0032] In some embodiments, a minimum distance between an orthographic projection of the retaining wall structure on the first substrate and an orthographic projection of the opening region on the first substrate is greater than 4 micrometers.

[0033] In some embodiments, in the arrangement direction of the orthographic projection of the retaining wall structure on the first base substrate and the orthographic projection of the first auxiliary spacer on the first base substrate, the width of the second surface is greater than or equal to 6 micrometers and less than or equal to 15 micrometers.

[0034] In some embodiments, a minimum distance between an orthographic projection of the first surface on the first base substrate and an orthographic projection of the second surface on the first base substrate is greater than 4 microns.

[0035] A display device provided in an embodiment of the present application includes the display panel provided in an embodiment of the present application.

[0036] In the display panel and display device provided by the embodiment of the present application, at least part of the second support portion adjacent to the first support portion in the first direction and the second direction includes a first auxiliary spacer and a retaining wall structure respectively located on the two substrates, so that when the display panel is deformed by force, if the first auxiliary spacer is displaced, the retaining wall structure can contact the first auxiliary spacer to prevent the first auxiliary spacer from continuing to move. Since the second support portion is adjacent to the first support portion in the first direction or the second direction, that is, compared with other support portions, the second support portion is very close to the first support portion, the retaining wall structure can prevent the first auxiliary spacer from continuing to move, and can also reduce the pressure on the first support portion, i.e., the main spacer. Not arranging a spacer on the opposite side of the first support portion can also prevent the first support portion from moving to the pixel opening area and scratching the alignment layer in the area. In addition, since the retaining wall structure contacts the first auxiliary spacer to prevent the first auxiliary spacer from continuing to move, the sliding distance of the support portion can be effectively reduced, and the support portion can be prevented from repeatedly rubbing the alignment layer to produce debris and cause poor display. Furthermore, since the first auxiliary spacer contacts the retaining wall structure after being stressed, the second support portion plays a supporting role and reduces the pressure of the first support portion. The display panel can be supported without providing a retaining wall structure on the opposite side of the third support portion, which can save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A schematic diagram of the structure of a display panel provided for related technology;

[0039] Figure 2 A schematic diagram of the force of a display panel provided for related technology;

[0040] Figure 3 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0041] Figure 4 A method provided in the embodiment of the present application Figure 3 Cross-sectional view of CC';

[0042] Figure 5 A schematic diagram of the force of a display panel provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0046] Fig. 9 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0047] Fig.10 A method provided in the embodiment of the present application Figure 3 Cross-sectional view of EE';

[0048] Fig.11 Another embodiment of the present application provides Figure 3 Cross-sectional view of EE';

[0049] Fig.12 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0050] Fig.13 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0051] Fig.14 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0052] Fig.15 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0053] Fig.16 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0054] Fig.17 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0055] Fig.18 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0056] Fig.19 A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0057] Fig. 20A schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0058] Fig.21 A schematic diagram of the structure of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. And in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of this application.

[0060] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0061] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, but are only intended to illustrate the content of the present application. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0062] In related technologies, such as Figure 1 As shown, a plurality of spacers 12 need to be arranged on the side of the color filter substrate 11 facing the array substrate 13; the plurality of spacers 12 include a plurality of main spacers 1201 and a plurality of auxiliary spacers 1201. In the initial state, the main spacers 1201 are in a compressed state and maintain a certain compression ratio, thereby supporting the cell thickness and maintaining the uniformity of the cell thickness. When the display panel is squeezed, the auxiliary spacers play a supporting role. Figure 2 As shown, the array substrate 13 includes a glass substrate 16, a circuit layer 15 disposed on one side of the glass substrate 16, and a flat layer 17 ( Figure 2The right side is not shown), and the alignment layer 14 is located on the side of the flat layer 17 away from the glass substrate 16. When the display panel is subjected to external force, the flat layer 17 bends due to the applied pressure, and the spacer 12 in a compressed state will leave the original station area and enter the pixel opening area and scratch the alignment layer 14. Area 18 is the area where the alignment layer 14 is scratched by the spacer 12. Even if the external force is removed, the flat layer 17 returns to its original shape and the spacer 12 is reset, but the scratches on the alignment layer 14 in area 18 are irreversible. The damaged alignment layer 14 will affect the anchoring alignment of the surface liquid crystal molecules, causing the liquid crystal light valve in this area to lose its function. Light leakage will occur in the area where the alignment layer 14 is scratched, affecting the display effect. In addition, when the display panel is subjected to external force, the spacer 12 will repeatedly rub the alignment layer 14, and the damaged alignment layer 14 will fall into the opening area to form debris. Bright spots will appear at the debris, which will also affect the display uniformity. In order to solve the problem of light leakage in the scratched area of ​​the alignment layer, one of the mitigation solutions in the related art is to set spacers on both sides of the color filter substrate and the array substrate, and the spacers on both sides cross in a cross shape, which can reduce the risk of scratching the alignment layer in the opening area when the spacers are compressed and deformed. However, the problem of repeated friction with the alignment film and causing debris when the spacers move significantly has not been solved.

[0063] The present application embodiment provides a display panel, such as Figure 3 , Figure 4 As shown, the display panel includes: a first substrate 1 and a second substrate 2 arranged opposite to each other; the display panel includes: a display area AA, and a peripheral area (not shown) surrounding the display area AA;

[0064] The first substrate 1 includes: a first base substrate 101; the second substrate 2 includes a second base substrate 201; and a plurality of support structures 4 located in the display area AA are further included between the first base substrate 101 and the second base substrate 201;

[0065] The plurality of support structures 4 are arranged in an array along a first direction X and a second direction Y, and the first direction X intersects with the second direction Y; the plurality of support structures 4 include: a plurality of first support structures 401, a plurality of second support structures 402, and a plurality of third support structures 403; the second support structures 402 are adjacent to the first support structures 401 in the first direction X or in the second direction Y, and the third support structures 403 are not adjacent to the first support structures 401 in the first direction X or in the second direction Y;

[0066] The second support structure 402 includes: a first auxiliary spacer 4021; at least part of the second support structure 402 also includes: a retaining wall structure 4022;

[0067] The first substrate 1 includes a first supporting structure 401, a first auxiliary spacer 4021 and a third supporting structure 403, and the second substrate 2 includes a retaining wall structure 4022;

[0068] The surface of the first supporting structure 401 facing away from the first base substrate 101 is in contact with the second substrate 2, and the surface of the first auxiliary spacer 4021 facing away from the first base substrate 101 and the surface of the third supporting structure 403 facing away from the first base substrate 101 are not in contact with the second substrate 2;

[0069] The surface of the retaining wall structure 4022 facing away from the second substrate 201 is not in contact with the first substrate 1;

[0070] The first auxiliary spacer 4021 has a first surface 40211 facing the second base substrate 201 ; the first surface 40211 and the retaining wall structure 4022 are not in contact with each other.

[0071] It should be noted that Figure 4 For example, two supporting structures 4 are adjacent in a certain direction, which means that there is no other supporting structure 4 on the line connecting the two supporting structures 4 in the direction. Specifically, the second supporting structure 402 is adjacent to the first supporting structure 401 in the first direction X, which means that there is no other supporting structure 4 on the line connecting the second supporting structure 402 and the first supporting structure 401 in the first direction X, and the second supporting structure 402 is adjacent to the first supporting structure 401 in the second direction Y, which means that there is no other supporting structure 4 on the line connecting the second supporting structure 402 and the first supporting structure 401 in the second direction Y. The third supporting structure 403 is not adjacent to the first supporting structure 401 in the first direction X, which means that there is another supporting structure 4 on the line connecting the third supporting structure 403 and the first supporting structure 401 in the first direction X, and the third supporting structure 403 is adjacent to the first supporting structure 401 in the second direction Y, which means that there is another supporting structure 4 on the line connecting the third supporting structure 403 and the first supporting structure 401 in the second direction Y.

[0072] In specific implementation, Figure 4 As shown, the display panel further includes: a liquid crystal layer 3 located between the first substrate 1 and the second substrate 2 .

[0073] In a specific implementation, the display panel further includes an alignment layer located on both sides of the liquid crystal layer. Figure 4 As shown, the first substrate 1 further includes a first alignment layer 102 in contact with the liquid crystal layer 3 , and the second substrate 2 further includes a second alignment layer 202 in contact with the liquid crystal layer 3 .

[0074] The display panel provided in the embodiment of the present application is a liquid crystal display panel. Among them, the first supporting part, the first auxiliary spacer, and the third supporting part are all equivalent to the spacers in the related art. The first supporting part is in contact with the second substrate, that is, the first supporting part is equivalent to the main spacer of the box thickness used to support the liquid crystal display panel. The first auxiliary spacer and the third supporting part are not in contact with the second substrate, that is, the first auxiliary spacer and the third supporting part are equivalent to the auxiliary spacers in the related art. When the display panel is not deformed, the first auxiliary spacer is not in contact with the retaining wall structure, and the first supporting part plays a role in supporting the back of the liquid crystal display panel. When the display panel is deformed by force, such as Figure 5 As shown, the first auxiliary spacer 4021 is in contact with the retaining wall structure 4022 .

[0075] The display panel provided by the embodiment of the present application comprises a first auxiliary spacer and a retaining wall structure respectively located on two substrates in at least a part of the second support portion adjacent to the first support portion in the first direction or the second direction, so that when the display panel is deformed by force, if the first auxiliary spacer is displaced, the retaining wall structure can contact the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace. Since the second support portion is adjacent to the first support portion in the first direction or the second direction, that is, compared with other support portions, the second support portion is very close to the first support portion, the retaining wall structure can prevent the first auxiliary spacer from continuing to displace and reduce the pressure on the first support portion, i.e., the main spacer. Not arranging a spacer on the opposite side of the first support portion can also prevent the first support portion from moving to the pixel opening area and scratching the alignment layer in the area. In addition, since the retaining wall structure contacts the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace, the sliding distance of the support portion can be effectively reduced, and the support portion can be prevented from repeatedly rubbing the alignment layer to produce debris and cause poor display. Furthermore, since the first auxiliary spacer contacts the retaining wall structure after being stressed, the second support portion plays a supporting role and reduces the pressure of the first support portion. The display panel can be supported without providing a retaining wall structure on the opposite side of the third support portion, which can save costs.

[0076] It should be noted that if a spacer is also provided on the opposite side of the first supporting portion, i.e. the main spacer, when the display panel is deformed by force, the first supporting portion contacts and is subjected to force from the spacer on the opposite side, and the first auxiliary spacer and the retaining wall structure cannot contact before the first supporting portion is subjected to force. Therefore, the first auxiliary spacer and the retaining wall structure cannot contact each other to reduce the pressure on the first supporting portion, i.e. the main spacer, and it is also impossible to prevent the first supporting portion from moving to the pixel opening area and scratching the alignment layer in this area, and it is also impossible to reduce the generation of debris caused by repeated friction of the alignment layer by the first supporting portion.

[0077] It should be noted that Figure 4 For along Figure 3It should be noted that, in the support portion 4 array, the second support portion 402 is adjacent to the first support portion 401 in the first direction X or in the second direction Y, while the third support portion 403 is not adjacent to the first support portion 401 in the first direction X or in the second direction Y, and part of the third support portion 403 is adjacent to the first support portion 401 in a direction intersecting the first direction X and the second direction Y.

[0078] In some embodiments, Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, at least two second support structures 402 adjacent to the first support structure 401 include retaining wall structures 4022 . That is, 2 to 4 second support structures 402 around the first support structure 401 include retaining wall structures 4022 . Figure 3 , Figure 6 , Figure 7 Take the two second supporting structures 402 including the retaining wall structure 4022 around the first supporting structure 401 as an example for illustration. Figure 3 The two second support structures 402 including the retaining wall structure 4022 around the first support structure 401 are adjacent to the first support structure 401 in the first direction X, Figure 6 The two second support structures 402 including the retaining wall structure 4022 around the first support structure 401 are adjacent to the first support structure 401 in the second direction Y. Figure 7 Among the two second support structures 402 including the retaining wall structure 4022 around the first support structure 401, one is adjacent to the first support structure 401 in the first direction X, and the other is adjacent to the first support structure 401 in the second direction Y. Figure 8 An example is given for explanation of the three second supporting structures 402 around the first supporting structure 401 including a retaining wall structure 4022 . Fig. 9 An example is given for explanation in which the four second supporting structures 402 around the first supporting structure 401 all include a retaining wall structure 4022 .

[0079] The display panel provided in the embodiment of the present application, at least two second support structures adjacent to each first support structure include a retaining wall structure, which can improve the effect of the retaining wall structure in blocking the first auxiliary spacer from continuing to move, and can reduce the pressure on each first support part, i.e., the main spacer, to prevent the first support part at any position from moving to the pixel opening area and scratching the alignment layer in the area, and can also effectively reduce the sliding distance of the support part to prevent the support part from repeatedly rubbing the alignment layer to generate debris and cause poor display.

[0080] In some embodiments, Figure 4As shown, in a direction perpendicular to the first base substrate 101 , the thickness of the first supporting structure 401 is greater than the thickness of the first auxiliary spacer 4021 , the thickness of the third supporting structure 403 , and the thickness of the retaining wall structure 4022 .

[0081] In some embodiments, Figure 4 As shown, the retaining wall structure 4022 has a second surface 40221 facing the first substrate 101;

[0082] A distance h2 from the second surface 40221 to the first base substrate 101 is smaller than a distance h1 from the first surface 40211 to the first base substrate 101 .

[0083] In the display panel provided in the embodiment of the present application, h2 is smaller than h1, that is, in the direction perpendicular to the first substrate, the first auxiliary spacer and the retaining wall structure have relative areas. When the display panel is deformed under force, it is beneficial to increase the contact speed between the first auxiliary spacer and the retaining wall structure, thereby increasing the speed at which the retaining wall structure blocks the displacement of the first auxiliary spacer, reducing the pressure on the first supporting portion more quickly, preventing the first supporting portion from moving to the pixel opening area and scratching the alignment layer in this area, and further reducing the sliding distance of the supporting portion, preventing the supporting portion from repeatedly rubbing the alignment layer to generate debris and causing poor display.

[0084] In some embodiments, Fig.10 As shown, the first substrate 1 further includes: a black matrix 5 and a color resist 6 located on the side of the first base substrate 101 facing the second substrate 2 (i.e., located between the first base substrate 101 and the liquid crystal layer 3), and the second substrate 2 further includes: a driving circuit 7 located on the side of the second base substrate 201 facing the first substrate 2 (i.e., located between the second base substrate 201 and the liquid crystal layer 3), and a planarization layer 8 located between the driving circuit 7 and the liquid crystal layer 3. For example, the side of the first substrate 1 facing away from the liquid crystal layer 3 is the light emitting side of the display panel.

[0085] Or, in some embodiments, Fig.11 As shown, the second substrate 2 further includes: a black matrix 5 and a plurality of color resists 6 located on the side of the second substrate 201 facing the first substrate 2 (i.e., located between the second substrate 201 and the liquid crystal layer 3), and the first substrate 1 further includes: a driving circuit 7 located on the side of the first substrate 101 facing the second substrate 2 (i.e., located between the first substrate 101 and the liquid crystal layer 3), and a planarization layer 8 located between the driving circuit 7 and the liquid crystal layer 3. For example, the side of the second substrate 2 facing away from the liquid crystal layer 3 is the light emitting side of the display panel.

[0086] It should be noted that Fig.10 , Fig.11 For along Figure 3 Cross-sectional view of EE'.

[0087] In some embodiments, Figure 3 , Fig.10 , Fig.11 As shown, the black matrix 5 includes a plurality of opening areas 501 arranged in an array, that is, the area outside the opening area 501 is a light shielding area 502 of the black matrix 5;

[0088] The color resist 6 is at least located in the opening area; the orthographic projection of the support structure 4 on the first base substrate 101 is located within the orthographic projection of the black matrix 5 on the first base substrate 101 .

[0089] In a specific implementation, the display panel includes a plurality of sub-pixels, and the sub-pixels correspond to the opening areas one by one. The area corresponding to the opening area 501 of the black matrix is ​​the sub-pixel opening area. The plurality of color resists 6 include n color resists 6 with different light emission colors, where n is an integer greater than 1; the color resists correspond to the sub-pixels one by one, and the plurality of sub-pixels include sub-pixels of n colors; for example, the plurality of sub-pixels include a plurality of red sub-pixels, a plurality of blue sub-pixels, and a plurality of green sub-pixels, and the plurality of color resists include: red color resists corresponding to the red sub-pixels one by one, blue color resists corresponding to the blue sub-pixels one by one, and green color resists corresponding to the green sub-pixels one by one.

[0090] In some embodiments, Fig.12 As shown, in the display area AA, the driving circuit 7 includes: a thin film transistor TFT and a pixel electrode P1 corresponding to each sub-pixel, a plurality of scanning lines 21 and a plurality of data lines 22; the thin film transistor TFT includes a gate, a source and a drain; the gate is electrically connected to the scanning line 21, the source is electrically connected to the data line 22, and the pixel electrode P1 is electrically connected to the drain;

[0091] A plurality of scan lines 21 extend along a first direction X, and a plurality of data lines 22 extend along a second direction Y;

[0092] The orthographic projections of the scan line 21 , the data line 22 and the thin film transistor TFT on the first base substrate 101 are located within the orthographic projection of the black matrix 5 on the first base substrate 101 , and the orthographic projection of the pixel electrode P1 on the first base substrate 101 overlaps with the opening area 501 .

[0093] In some embodiments, Fig.13 As shown, the driving circuit 7 includes multiple conductive layers 9 located at different layers;

[0094] The multi-layer conductive layer 9 includes: a first conductive layer 901, a second conductive layer 902 located on a side of the first conductive layer 901 away from the liquid crystal layer, and a first transparent conductive layer 903 located on a side of the first conductive layer 901 away from the second conductive layer 902;

[0095] The second conductive layer 902 includes: a gate G, and a scan line (not shown);

[0096] The first conductive layer 901 includes: a source electrode S, a drain electrode D, and a data line (not shown);

[0097] The first transparent conductive layer 903 includes: a pixel electrode P1;

[0098] The driving circuit further includes an active layer 701;

[0099] Taking the thin film transistor TFT with a top gate structure as an example, the display panel also includes: a gate insulating layer 23 located between the active layer 701 and the second conductive layer 902, an interlayer insulating layer 24 located between the first conductive layer 901 and the second conductive layer 902, a first passivation layer 25 located between the first conductive layer 901 and the first transparent conductive layer 903, and a buffer layer 26 located on the side of the active layer 701 away from the gate insulating layer 23.

[0100] In some embodiments, the multi-layer conductive layer further comprises: a second transparent conductive layer, the second transparent conductive layer comprising a common electrode;

[0101] The second transparent conductive layer may be located on a side of the first transparent conductive layer away from the first conductive layer, or the second transparent conductive layer may be located between the first transparent conductive layer and the first passivation layer;

[0102] The display panel further includes a second passivation layer located between the second transparent conductive layer and the first transparent conductive layer.

[0103] In some embodiments, Figure 4 , Fig.10 , Fig.11 As shown, the material of the retaining wall structure 4022 is the same as that of the first supporting structure 401 , the first auxiliary spacer 4021 and the third supporting structure 403 .

[0104] In some embodiments, the material of the retaining wall structure, the first supporting structure, the first auxiliary spacer, and the third supporting structure is resin.

[0105] In some embodiments, Figure 4 , Fig.10 As shown, the first supporting structure 401 , the first auxiliary spacer 4021 and the third supporting structure 403 are located on the side of the black matrix 5 away from the first base substrate 101 , and the retaining wall is located on the side of the planarization layer 8 away from the second base substrate 201 .

[0106] In some embodiments, Figure 4 As shown, in the direction perpendicular to the first base substrate 101 , the cross-sections of the retaining wall structure 4022 , the first supporting structure 401 , the first auxiliary spacer 4021 and the third supporting structure 403 are trapezoidal.

[0107] Or, in some embodiments, Fig.11 As shown, the first supporting structure 401 , the first auxiliary spacer 4021 and the third supporting structure 403 are located on the side of the planarization layer 8 away from the first base substrate 101 , and the retaining wall is located on the side of the black matrix 5 away from the second base substrate 201 .

[0108] Of course, in a specific implementation, the material of the retaining wall structure may also be different from the materials of the first supporting structure, the first auxiliary spacer, and the third supporting structure.

[0109] In some embodiments, Fig.14 As shown, the first supporting structure 401, the first auxiliary spacer 4021 and the third supporting structure 403 are located on the side of the planarization layer 8 away from the first base substrate 101;

[0110] The retaining wall is located on the side of the black matrix 5 away from the second base substrate 201, and the retaining wall structure 4022 includes n stacked sub-retaining walls 27, and one sub-retaining wall 27 and a color resist 6 of one light emitting color are formed in the same patterning process.

[0111] The display panel provided in the embodiment of the present application has sub-retaining walls and color resists arranged on the same layer, which can save process flow and cost, and the sub-retaining walls arranged on the same layer with multiple color resists are stacked to form a retaining wall structure, which can ensure the thickness of the retaining wall structure, so that the retaining wall structure can quickly contact the first auxiliary spacer when the display panel is subjected to force.

[0112] In some embodiments, Fig.14 As shown, the n color resists 6 with different light output colors are red color resist r, blue color resist b, and green color resist g; the n sub-retaining walls 27 are: a first sub-retaining wall 2701 formed in the same graphic process as the red color resist r, a second sub-retaining wall 2702 formed in the same graphic process as the blue color resist b, and a third sub-retaining wall 2703 formed in the same graphic process as the green color resist g.

[0113] It should be noted that Fig.14 Taking the order of forming the red color block r, the blue color block b, and the green color block g in sequence as an example, correspondingly, the first sub-blocking wall 2701, the second sub-blocking wall 2702, and the third sub-blocking wall 2703 are stacked in sequence in the direction away from the black matrix 5. In a specific implementation, the order of making the color blocks of different colors is different, and the stacking order of the first sub-blocking wall, the second sub-blocking wall, and the third sub-blocking wall is also different.

[0114] In some embodiments, the first substrate includes a black matrix and a color resist, and the second substrate includes: multiple conductive layers, insulating film layers and a planarization layer located between the conductive layers; the insulating film layers include, for example, an interlayer insulating layer, a first passivation layer, etc. Fig.15 , Fig.16As shown, the retaining wall structure 4022 may include a substructure 28 disposed in the same layer as the conductive layer 9 , the insulating film layer 29 , and a portion of the film layers in the planarization layer 8 .

[0115] That is, the retaining wall structure includes a part that is arranged on the same layer as the driving circuit and the planarization layer, which can save process flow and cost.

[0116] In some embodiments, Fig.15 As shown, the retaining wall structure 4022 at least includes a first substructure 2801 disposed in the same layer as the planarization layer 8. That is, the surface of the planarization layer 8 facing the first substrate has a protrusion facing the first substrate in the area where the retaining wall structure 4022 is required to be disposed, and the surface of the protrusion is the second surface of the retaining wall structure. When the display panel is subjected to force, the protrusion of the planarization layer can contact the first auxiliary spacer.

[0117] In the specific implementation, since it is necessary to make the surface of the planarization layer facing away from the second substrate have a protrusion to realize the function of the retaining wall structure, if the retaining wall structure is only made on the planarization layer, it is necessary to make the protrusion in the area where the retaining wall structure is required to be formed. If the retaining wall structure also includes substructures located in other film layers, multiple substructures are stacked, and finally the surface of the planarization layer facing the first substrate has a protrusion, which can reduce the difficulty of making the retaining wall structure. That is, the retaining wall structure can also include a portion located in the conductive layer and / or the insulating film layer. The conductive layer and / or the insulating film layer, as well as the planarization layer are stacked to form a retaining wall structure.

[0118] In some embodiments, Fig.16 As shown, the retaining wall structure 4022 further includes: a second substructure 2802 located in the first conductive layer 901 , and a third substructure 2803 located in the first passivation layer 25 .

[0119] It should be noted that among the multiple conductive layers of the driving circuit, the thickness of the first conductive layer is usually thicker than that of the other conductive layers, so that the first conductive layer, the first passivation layer and the planarization layer are stacked, which makes it easier for the surface of the planarization layer to form a bulge in the area where the retaining wall structure is required, thereby reducing the difficulty of manufacturing the retaining wall structure. Of course, the retaining wall structure may also include substructures located in other conductive layers.

[0120] In some embodiments, the second substructure is disconnected from the data line, the source and the drain of the thin film transistor, thereby preventing the second substructure disposed in the same layer from interfering with the data line and the thin film transistor.

[0121] In some embodiments, Figure 3 , Figure 6 to Figure 9 , Fig.12 , Fig.17As shown, the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 surrounds the orthographic projection of the first surface 40211 on the first base substrate 101 .

[0122] In some embodiments, Figure 3 , Figure 6 to Figure 9 , Fig.12 As shown, the orthographic projection of the retaining wall structure 4022 on the first substrate 101 is in the shape of a ring, which is, for example, a circular ring, and in specific implementation, it can also be a three-sided, four-sided or other polygonal ring, or other irregular ring.

[0123] If the retaining wall structure includes a second substructure located in the first conductive layer, in some embodiments, such as Fig.17 As shown, the pattern of the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 is a part of a ring. The orthographic projection of the retaining wall structure 4022 on the first base substrate 101 does not overlap with the data line 22, the source and the drain (not shown). In a specific implementation, the pattern of the orthographic projection of the second substructure on the first base substrate is a ring with a gap, and the gap is the area where the second substructure avoids the data line.

[0124] Or, in some embodiments, Fig.18 , Fig.19 , Fig. 20 As shown, the pattern of the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 is a strip;

[0125] like Fig.18 , Fig.19 As shown, the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 is located on the side of the first surface 40211 on the orthographic projection of the first base substrate 101 away from the first supporting structure 401 adjacent thereto; or,

[0126] like Fig. 20 As shown, the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 is located on a side of the first surface 40211 on the orthographic projection of the first base substrate 101 away from the first supporting structure 401 adjacent thereto.

[0127] It should be noted that when the pattern of the orthographic projection of the retaining wall structure on the first substrate surrounds the orthographic projection of the first surface on the first substrate, that is, the pattern of the orthographic projection of the retaining wall structure on the first substrate is ring-shaped, which is equivalent to the first substrate or the second substrate having a groove at the retaining wall structure. When the alignment layer is subsequently formed, it will cause the diffusion layer to diffuse unevenly near the groove, resulting in poor thickness uniformity of the alignment layer, affecting the uniformity of the brightness of the sub-pixels.

[0128] In the display panel provided by the embodiment of the present application, the pattern of the orthographic projection of the retaining wall structure on the first substrate is a strip shape, which can avoid the formation of grooves at the retaining wall structure causing uneven diffusion of the alignment layer, and can ensure the uniformity of the light output brightness of the sub-pixels while setting the retaining wall structure.

[0129] In some embodiments, when the pattern of the orthographic projection of the retaining wall structure on the first substrate is a strip, the angle between the orthographic projection of the retaining wall structure on the first substrate and the first direction may be any angle greater than or equal to 0° and less than 180°. The angles between the orthographic projection of all retaining wall structures on the first substrate and the first direction may be the same, or, among the plurality of retaining wall structures, the angle between the orthographic projection of a portion of the retaining wall structures on the first substrate and the first direction is the first angle, and the angle between the orthographic projection of the remaining retaining wall structures on the first substrate and the first direction is the second angle, and the first angle and the second angle are different.

[0130] For example, in some embodiments, Fig.18 , Fig. 20 As shown, in the second supporting structure 402 adjacent to the first supporting structure 401 in the first direction X, the angle between the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 and the first direction X is 90°. In the second supporting structure 402 adjacent to the first supporting structure 401 in the second direction Y, the angle between the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 and the first direction X is 0°.

[0131] Or, in some embodiments, Fig.19 As shown, the angle between the orthographic projection of each retaining wall structure 4022 on the first base substrate 101 and the first direction X is the same. Fig.19 For example, the angle between the orthographic projection of the retaining wall structure 4022 on the first substrate 101 and the first direction X is 135°. Of course, the angle between the orthographic projection of the retaining wall structure 4022 on the first substrate 101 and the first direction X can also be 45°, 60°, 150° or other angles.

[0132] In specific implementation, the distance between the second surface and the first surface in the orthographic projection on the first substrate needs to take into account the process error and alignment deviation. This prevents the retaining wall structure from contacting the first auxiliary spacer. In some embodiments, Fig.18 As shown, the minimum distance h5 between the orthographic projection of the first surface 40211 on the first base substrate 101 and the orthographic projection of the second surface 40221 on the first base substrate 101 is greater than 4 microns.

[0133] In a specific implementation, when the material of the retaining wall structure, the first supporting structure, the first auxiliary spacer and the third supporting structure is resin, and the resin has a good light transmittance, even if there are process errors and alignment deviations in the manufacture of the retaining wall structure so that part of the area of ​​the finally formed retaining wall structure is located in the opening area, it will not affect the light transmission effect of the sub-pixel too much.

[0134] However, if the retaining wall structure is disposed in the same layer as the color resist or the retaining wall structure includes a substructure disposed in the same layer as the first conductive layer or the second conductive layer, there are process errors and alignment deviations so that part of the region of the retaining wall structure finally formed is located in the opening region, which may affect the light transmittance of the sub-pixel. Therefore, the minimum distance between the retaining wall structure and the orthographic projection of the opening region on the first substrate needs to take into account the process errors and alignment deviations. In some embodiments, such as Fig.18 As shown, the minimum distance h3 between the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 and the orthographic projection of the opening area on the first base substrate 101 is greater than 4 micrometers.

[0135] In some embodiments, Fig.18 As shown, in the arrangement direction of the orthographic projection of the retaining wall structure 4022 on the first base substrate 101 and the orthographic projection of the first auxiliary spacer 4021 on the first base substrate 101, the width h4 of the second surface 40221 is greater than or equal to 6 microns and less than or equal to 15 microns. Thus, while maintaining the supporting effect of the retaining wall structure, the retaining wall structure can be prevented from occupying too much of the shading area, thereby avoiding affecting the sub-pixel aperture ratio.

[0136] A display device provided in an embodiment of the present application is Fig.21 As shown, it includes the display panel 19 provided in the embodiment of the present application.

[0137] The display device provided by the embodiment of the present application includes the above-mentioned display panel provided by the embodiment of the present application, in which at least part of the second support portion adjacent to the first support portion in the first direction and the second direction includes a first auxiliary spacer and a retaining wall structure respectively located on the two substrates, so that when the display panel is deformed by force, if the first auxiliary spacer is displaced, the retaining wall structure can contact the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace. Since the second support portion is adjacent to the first support portion in the first direction or the second direction, that is, compared with other support portions, the second support portion is very close to the first support portion, the retaining wall structure can prevent the first auxiliary spacer from continuing to displace, and can also reduce the pressure on the first support portion, i.e., the main spacer. Not arranging a spacer on the opposite side of the first support portion can also prevent the first support portion from moving to the pixel opening area and scratching the alignment layer in the area. In addition, since the retaining wall structure contacts the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace, the sliding distance of the support portion can be effectively reduced, and the support portion can be prevented from repeatedly rubbing the alignment layer to produce debris and cause poor display. Furthermore, since the first auxiliary spacer contacts the retaining wall structure after being stressed, the second support portion plays a supporting role and reduces the pressure of the first support portion. The display panel can be supported without providing a retaining wall structure on the opposite side of the third support portion, which can save costs.

[0138] In some embodiments, Fig.21 As shown, the display device may further include: a backlight module 20 located at the light incident side of the display panel 19. The backlight module may be a direct-lit backlight module or an edge-lit backlight module.

[0139] In a specific implementation, the side-entry backlight module may include a light bar, a reflective sheet, a light guide plate, a diffuser, a prism group, etc., and the light bar is located on one side of the thickness direction of the light guide plate. The direct-type backlight module may include a matrix light source, a reflective sheet, a diffuser, and a brightness enhancement film stacked on the light-emitting side of the matrix light source, and the reflective sheet includes an opening arranged directly opposite to the position of each lamp bead in the matrix light source. The lamp beads in the light bar and the lamp beads in the matrix light source can be light-emitting diodes (LEDs), such as micro light-emitting diodes (Mini LED, Micro LED, etc.). Submillimeter-level or even micron-level micro light-emitting diodes are self-luminous devices like organic light-emitting diodes (OLEDs). Like organic light-emitting diodes, it has a series of advantages such as high brightness, ultra-low latency, and ultra-large viewing angles. And because the light emission of inorganic light-emitting diodes is based on metal semiconductors with more stable properties and lower resistance, it has the advantages of lower power consumption, better resistance to high and low temperatures, and longer service life than organic light-emitting diodes that emit light based on organic matter. Moreover, when micro light-emitting diodes are used as backlight sources, more sophisticated dynamic backlight effects can be achieved. While effectively improving screen brightness and contrast, it can also solve the glare phenomenon caused by traditional dynamic backlighting between bright and dark areas of the screen, thereby optimizing the visual experience.

[0140] The display device provided in the embodiment of the present application is any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a navigator, etc. Other essential components of the display device should be understood by ordinary technicians in the field, and will not be described in detail here, nor should they be used as limitations on the present application. The implementation of the display device can refer to the above-mentioned embodiment of the display panel, and the repeated parts will not be described in detail.

[0141] In summary, the display panel and display device provided by the embodiment of the present application, at least part of the second support portion adjacent to the first support portion in the first direction and the second direction includes a first auxiliary spacer and a retaining wall structure respectively located on the two substrates, so that when the display panel is deformed by force, if the first auxiliary spacer is displaced, the retaining wall structure can contact the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace. Since the second support portion is adjacent to the first support portion in the first direction or the second direction, that is, compared with other support portions, the second support portion is very close to the first support portion, the retaining wall structure prevents the first auxiliary spacer from continuing to displace, and can also reduce the pressure on the first support portion, i.e., the main spacer. Not arranging a spacer on the opposite side of the first support portion can also prevent the first support portion from moving to the pixel opening area and scratching the alignment layer in this area. In addition, since the retaining wall structure contacts the first auxiliary spacer to prevent the first auxiliary spacer from continuing to displace, the sliding distance of the support portion can be effectively reduced, and the support portion can be prevented from repeatedly rubbing the alignment layer to produce debris and cause poor display. Furthermore, since the first auxiliary spacer contacts the retaining wall structure after being stressed, the second support portion plays a supporting role and reduces the pressure of the first support portion. The display panel can be supported without providing a retaining wall structure on the opposite side of the third support portion, which can save costs.

[0142] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0143] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A display panel, characterized in that: The display panel comprises: a first substrate and a second substrate arranged opposite to each other; the display panel comprises a display area; The first substrate comprises: a first base substrate; the second substrate comprises a second base substrate; and a plurality of supporting structures located in the display area are further included between the first base substrate and the second base substrate; The multiple support structures are arranged in an array along a first direction and a second direction, and the first direction intersects with the second direction; the multiple support structures include: a plurality of first support structures, a plurality of second support structures, and a plurality of third support structures; the second support structures are adjacent to the first support structures in the first direction or in the second direction, and the third support structures are not adjacent to the first support structures in the first direction or in the second direction; The second supporting structure includes: a first auxiliary spacer; at least part of the second supporting structure also includes: a retaining wall structure; The first substrate includes the first supporting structure, the first auxiliary spacer and the third supporting structure, and the second substrate includes the retaining wall structure; The surface of the first supporting structure facing away from the first substrate is in contact with the second substrate, the surface of the first auxiliary spacer facing away from the first substrate and the surface of the third supporting structure facing away from the first substrate are not in contact with the second substrate; the surface of the retaining wall structure facing away from the second substrate is not in contact with the first substrate; The first auxiliary spacer has a first surface facing the second substrate; the first surface and the retaining wall structure are not in contact with each other.

2. The display panel according to claim 1, characterized in that: At least two of the second supporting structures adjacent to the first supporting structure include the retaining wall structure.

3. The display panel according to claim 1, characterized in that: The retaining wall structure has a second surface facing one side of the first substrate; The distance from the second surface to the first substrate is smaller than the distance from the first surface to the first substrate.

4. The display panel according to claim 1, characterized in that: The orthographic projection of the retaining wall structure on the first substrate surrounds the orthographic projection of the first surface on the first substrate.

5. The display panel according to claim 1, characterized in that: The pattern of the orthographic projection of the retaining wall structure on the first substrate is a stripe; The orthographic projection of the retaining wall structure on the first substrate is located on a side of the orthographic projection of the first surface on the first substrate that is away from the first supporting structure adjacent thereto; or, The orthographic projection of the retaining wall structure on the first substrate is located on a side of the orthographic projection of the first surface on the first substrate that is away from the first supporting structure adjacent thereto.

6. The display panel according to any one of claims 1 to 5, characterized in that: The first substrate further includes: a black matrix and a color resist located on a side of the first substrate facing the second substrate, and the second substrate further includes: a driving circuit located on a side of the second substrate facing the first substrate, and a planarization layer located on a side of the driving circuit facing the first substrate; or, the second substrate further includes: a black matrix and a plurality of color resist located on a side of the second substrate facing the first substrate, and the first substrate further includes: a driving circuit located on a side of the first substrate facing the second substrate, and a planarization layer located on a side of the driving circuit facing the second substrate; The black matrix includes a plurality of opening areas arranged in an array, and the color resist is at least located in the opening areas; the orthographic projection of the support structure on the first substrate is located within the orthographic projection of the black matrix on the first substrate.

7. The display panel according to claim 6, characterized in that: The first supporting structure, the first auxiliary spacer and the third supporting structure are located on a side of the black matrix away from the first substrate, and the retaining wall is located on a side of the planarization layer away from the second substrate; or, The first supporting structure, the first auxiliary spacer and the third supporting structure are located on a side of the planarization layer away from the first substrate, and the retaining wall is located on a side of the black matrix away from the second substrate.

8. The display panel according to claim 7, characterized in that: The material of the retaining wall structure is the same as that of the first supporting structure, the first auxiliary spacer, and the third supporting structure.

9. The display panel according to claim 6, characterized in that: The first supporting structure, the first auxiliary spacer and the third supporting structure are located on a side of the planarization layer away from the first base substrate; the plurality of color resists include n color resists with different light emitting colors, where n is an integer greater than 1; The retaining wall is located on a side of the black matrix away from the second base substrate, and the retaining wall structure includes n sub-retaining walls arranged in a stacked manner, and one of the sub-retaining walls and the color resist of one light emitting color are formed in the same patterning process.

10. The display panel according to claim 6, characterized in that: The driving circuit includes multiple conductive layers located at different layers; The retaining wall structure includes a substructure disposed on the same layer as the multiple conductive layers and part of the film layers in the planarization layer.

11. The display panel according to claim 10, characterized in that: The multi-layer conductive layer comprises: a first conductive layer, the first conductive layer comprises a plurality of data lines, a source electrode and a drain electrode of a thin film transistor; the orthographic projections of the plurality of data lines, the source electrode and the drain electrode on the first substrate are located within the orthographic projection of the black matrix on the first substrate; The retaining wall structure includes: a first substructure disposed in the same layer as the planarization layer, and a second substructure located in the first conductive layer; The second substructure is disconnected from the data line, the source electrode and the drain electrode.

12. The display panel according to any one of claims 7 to 11, characterized in that: A minimum distance between an orthographic projection of the retaining wall structure on the first substrate and an orthographic projection of the opening area on the first substrate is greater than 4 micrometers.

13. The display panel according to any one of claims 1 to 5 and 7 to 11, characterized in that: The retaining wall structure has a second surface; in the arrangement direction of the orthographic projection of the retaining wall structure on the first substrate and the orthographic projection of the first auxiliary spacer on the first substrate, the width of the second surface is greater than or equal to 6 microns and less than or equal to 15 microns.

14. The display panel according to any one of claims 1 to 5 and 7 to 11, characterized in that: The retaining wall structure has a second surface; a minimum distance between an orthographic projection of the first surface on the first substrate and an orthographic projection of the second surface on the first substrate is greater than 4 micrometers.

15. A display device, characterized in that: The invention comprises a display panel according to any one of claims 1 to 14.

Images