Display panel and display device

Abstract

The embodiment of the utility model provides a display panel and a display device. The display panel comprises a first substrate and a second substrate which are oppositely arranged, and further comprises frame sealing glue located between the first substrate and the second substrate. The display panel comprises a display area located on the inner side of the frame sealing glue and a non-display area located between the display area and the frame sealing glue, and the non-display area is at least located on one side of the display area. The auxiliary supporting column is arranged on the surface, facing one side of the first substrate, of the second substrate and is located in the non-display area; a plurality of auxiliary supporting columns are arranged in the width direction of the non-display area, and gaps between the auxiliary supporting columns and the first substrate are gradually increased in the width direction of the non-display area and from the frame sealing glue to the display area. According to the scheme, the phenomena of light leakage and yellowing around the display area can be improved.

Description

Technical Field

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

[0002] As the market develops, the demand for the size of liquid crystal display panels (LCD) is increasing. As the size increases, the risk of LCD panel image quality is increasing. When the LCD panel is pressed by external force, it is easy to cause uneven gaps, which in turn causes light leakage that can be seen by the human eye, reducing the product image quality and affecting product yield and competitiveness.

[0003] In the related art, in order to prevent the LCD panel from leaking light when pressed by external force, auxiliary support columns are set in the non-display area. However, such a design is prone to yellowing around the display area and display defects caused by gravity. In addition, end customers have slightly differentiated requirements for panels with the same size display screen, such as wide borders, general borders, narrow borders and other border size requirements. How to reduce the yellowing problem around the display area and meet customers' requirements for different border sizes at a low cost has become one of the problems that need to be solved. Summary of the invention

[0004] Embodiments of the present disclosure provide a display panel and a display device to solve or alleviate one or more technical problems in the prior art.

[0005] As a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a display panel, comprising a first substrate and a second substrate arranged opposite to each other, and also comprising a frame sealant located between the first substrate and the second substrate; the display panel comprises a display area located inside the frame sealant, and a non-display area located between the display area and the frame sealant, wherein the non-display area is located at least on one side of the display area;

[0006] The display panel also includes an auxiliary support column, which is arranged on the surface of the second substrate facing the first substrate and is located in the non-display area; a plurality of auxiliary support columns are arranged along the width direction of the non-display area, and the gap between the plurality of auxiliary support columns and the first substrate gradually increases along the width direction of the non-display area and with the self-sealing frame glue facing the display area.

[0007] In some embodiments, along the width direction of the non-display area, the gap between the auxiliary support column close to the frame sealant and the first substrate is less than 0; and / or the gap between the auxiliary support column close to the display area and the first substrate is greater than 0.

[0008] In some embodiments, along the width direction of the non-display area, a gap between the auxiliary support column close to the frame sealing glue and the first substrate is 0 to -0.3 μm.

[0009] In some embodiments, along the width direction of the non-display area and with the self-sealing glue facing the display area, the supporting surface areas of the plurality of auxiliary supporting columns gradually decrease.

[0010] In some embodiments,

[0011] Along the width direction of the non-display area, the supporting surface of the auxiliary supporting column relatively far away from the display area includes a strip shape; and / or,

[0012] Along the width direction of the non-display area, the supporting surface of the auxiliary supporting column close to the display area has a shape including a circle or a regular polygon.

[0013] In some embodiments,

[0014] The auxiliary support column relatively far from the display area includes a first auxiliary support column, the support surface of the first auxiliary support column includes a strip shape, and the length direction of the first auxiliary support column is parallel to the width direction of the non-display area; and / or,

[0015] The auxiliary support column relatively far from the display area includes a second auxiliary support column, the support surface of the second auxiliary support column includes a strip shape, and the length direction of the second auxiliary support column is perpendicular to the width direction of the non-display area.

[0016] In some embodiments, the plurality of auxiliary support columns arranged along the extension direction of the edge corresponding to the display area are evenly distributed.

[0017] In some embodiments, along the width direction of the non-display area, the auxiliary support column relatively far away from the display area includes an auxiliary support wall, and the auxiliary support wall is continuously arranged along the extension direction of the corresponding edge of the display area.

[0018] In some embodiments, the non-display area is divided into at least two strip areas along the width direction, at least one auxiliary support column is arranged in the strip area along the width direction, the self-sealing frame glue faces the display area, and the gap between the auxiliary support column in each strip area and the first substrate gradually increases.

[0019] In some embodiments, the second substrate includes a second substrate, and a first shading strip and a shading portion located on a side of the second substrate facing the first substrate, the first shading strip is located in the display area and between two adjacent rows of sub-pixels, the shading portion is located in the non-display area, and the auxiliary supporting column is located on a side of the shading portion away from the second substrate, and the orthographic projection of the auxiliary supporting column on the second substrate at least partially overlaps with the orthographic projection of an extension of the first shading strip in the non-display area on the second substrate.

[0020] In some embodiments,

[0021] The second substrate includes a second underlayer, and a color resist layer located on a side of the second substrate facing the first substrate, the color resist layer includes a color filter layer located in a display area and a support layer located in a non-display area, and the thickness of the support layer is less than the thickness of the color filter layer; and / or,

[0022] The second substrate includes a second underlayer, and a light shielding layer located on a side of the second underlayer facing the first substrate, the light shielding layer includes a black matrix located in the display area and a light shielding portion located in the non-display area, and the thickness of the light shielding portion is less than the thickness of the black matrix; and / or,

[0023] The second substrate includes a second substrate and a flat layer located on the side of the second substrate facing the first substrate. The flat layer includes a first portion located in the non-display area and a second portion located in the display area. The thickness of the first portion is smaller than that of the second portion.

[0024] In some embodiments, the first substrate includes a first substrate, and a first insulating layer and a second insulating layer located on a side of the first substrate facing the second substrate, wherein:

[0025] The first insulating layer includes a third portion located in the non-display area and a fourth portion located in the display area, and the thickness of the third portion is less than the thickness of the fourth portion; and / or the second insulating layer includes a fifth portion located in the non-display area and a sixth portion located in the display area, and the thickness of the fifth portion is less than the thickness of the sixth portion.

[0026] In some embodiments, the first substrate includes a first substrate and a first structure portion and a second structure portion located on a side of the first substrate facing the second substrate, the first structure portion and the second structure portion are both located in a non-display area, an orthographic projection of an auxiliary support column relatively far away from the display area on the first substrate is located within the orthographic projection of the first structure portion on the first substrate, an orthographic projection of an auxiliary support column close to the display area on the first substrate is located within the orthographic projection of the second structure portion on the first substrate, and the thickness of the first structure portion is greater than the thickness of the second structure portion.

[0027] In some embodiments, the first structure portion includes a first metal pattern, the second structure portion includes a second metal pattern, and a thickness of the first metal pattern is greater than a thickness of the second metal pattern.

[0028] In some embodiments, the first substrate includes a first substrate and a first metal trace and a second metal trace located on a side of the first substrate facing the second substrate, the first metal trace and the second metal trace are both located in a non-display area and in different metal layers, the first metal trace includes a first line segment extending along a third direction, the second metal trace includes a second line segment extending along a fourth direction, an orthographic projection of an auxiliary support column relatively far from the display area on the first substrate and an orthographic projection of the first line segment on the first substrate have an overlapping area, the second line segment includes a transition segment, the transition segment allows the second line segment to avoid the orthographic projection of the auxiliary support column relatively far from the display area on the first substrate, the thickness of the first metal trace is greater than the thickness of the second metal trace, and the fourth direction is not parallel to the third direction; and / or,

[0029] The first substrate includes a first substrate and a first metal trace and a second metal trace located on a side of the first substrate facing the second substrate, the first metal trace and the second metal trace are both located in a non-display area and in different metal layers, the first metal trace includes a third line segment, the second metal trace includes a fourth line segment, the third line segment and the fourth line segment are connected through a via, an orthographic projection of an auxiliary support column close to the display area on the first substrate and an orthographic projection of the fourth line segment on the first substrate have an overlapping area, the via avoids the orthographic projection of the auxiliary support column close to the display area on the first substrate, and the thickness of the first metal trace is greater than the thickness of the second metal trace.

[0030] In some embodiments, the distance between the auxiliary support column close to the frame sealing glue and the frame sealing glue is 2 mm to 3 mm.

[0031] In some embodiments, the display area includes a plurality of pixels, each pixel includes a plurality of sub-pixels arranged along a first direction, and the non-display area is located at at least one side of the display area along the first direction.

[0032] In some embodiments, it further includes a peripheral support column located outside the frame sealing glue, and the peripheral support column is arranged on the surface of the second substrate facing the first substrate.

[0033] As a second aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a display device, including the display panel in any embodiment of the present disclosure.

[0034] According to the technical solution of the embodiment of the present disclosure, an auxiliary support column is provided in the non-display area, and a plurality of auxiliary support columns are provided along the width direction of the non-display area. Moreover, as the self-sealing frame glue faces the display area, the gap between the plurality of auxiliary support columns and the first substrate gradually increases. Therefore, as the self-sealing frame glue faces the display area, when the plurality of auxiliary support columns 40 are in a compressed state, the compression amount of the plurality of auxiliary support columns 40 gradually decreases. Therefore, according to the technical solution disclosed in the present invention, when the display panel is pressed by external force, for example, the non-display area is pressed by external force, multiple auxiliary support pillars can contact with the first substrate to form a stacked support force, thereby reducing the light leakage sensitivity around the display area; when the display panel is pressed by external force, the self-sealing frame glue along the width direction of the non-display area is pressed toward the display area, and multiple auxiliary support pillars are in turn in contact with the first substrate to form a stacked support, the auxiliary support pillars relatively far away from the display area are in contact with the first substrate to form a strong support, and the auxiliary support pillars close to the display area are in contact with the first substrate to form a weak support, which not only ensures that the non-display area has sufficient supporting force, but also the supporting force of the non-display area gradually increases as it moves away from the display area and changes slowly, which can avoid the sudden change of box thickness from the display area to the non-display area, reduce the difference in box thickness between the display area and the periphery of the display area, and improve the light leakage and yellowing phenomena around the display area.

[0035] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0037] Figure 1 It is a schematic top view of a display panel in the related art;

[0038] Figure 2A for Figure 1 A schematic diagram of a cross-sectional structure of a display panel is shown;

[0039] Figure 2B for Figure 2A A simplified schematic diagram of

[0040] Figure 3 It is a partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure;

[0041] Figure 4A A gap relationship between the auxiliary support pillars in the non-display area and the first substrate is shown;

[0042] Figure 4B A second gap relationship between the auxiliary support pillars in the non-display area and the first substrate is shown;

[0043] Figure 4C The third gap relationship between the auxiliary support pillars in the non-display area and the first substrate is shown;

[0044] Figure 5A is a partial top view schematic diagram of a display panel in an embodiment of the present disclosure;

[0045] Figure 5B is a partial top view schematic diagram of a display panel in another embodiment of the present disclosure;

[0046] Figure 6 is a schematic top view of a display panel in an embodiment of the present disclosure;

[0047] Figure 7 is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present disclosure;

[0048] Figure 8 It is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present disclosure;

[0049] Fig. 9 It is a partial cross-sectional schematic diagram of a display panel according to yet another embodiment of the present disclosure;

[0050] Fig.10 It is a partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure;

[0051] Fig.11 A schematic top view of a non-display area of ​​a first substrate in a display panel according to an embodiment of the present disclosure;

[0052] Fig. 12A It is a schematic top view of a non-display area of ​​a first substrate in the related art;

[0053] Fig. 12B is a schematic top view of a non-display area of ​​a first substrate in an embodiment of the present disclosure;

[0054] Fig.13A It is a schematic top view of a non-display area of ​​a first substrate in the related art;

[0055] Fig. 13B FIG. 4 is a schematic top view of a non-display area of ​​a first substrate in an embodiment of the present disclosure.

[0056] Description of reference numerals:

[0057] 10. first substrate; 11. first underlay; 12. first insulating layer; 13. second insulating layer; 141. first metal pattern; 151. second metal pattern;

[0058] 20. second substrate; 21. second underlayer; 22. light shielding layer; 23. color resist layer; 24. flat layer;

[0059] 30. Frame sealing glue; 40. Auxiliary support column; 51. Main support column; 52. Secondary support column; 61. First metal wiring; 62. Second metal wiring. DETAILED DESCRIPTION

[0060] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure, and different embodiments may be combined arbitrarily without conflict. Therefore, the drawings and descriptions are considered to be illustrative in nature and not restrictive.

[0061] Figure 1 is a schematic top view of a display panel in the related art. Figure 2A for Figure 1 The cross-sectional structure diagram of the display panel is shown in FIG. Figure 2B for Figure 2A A simplified diagram of Figure 2A FIG. 4 shows a cross section of a portion of a display panel. Figure 1 and Figure 2A As shown, the display panel includes a first substrate 10 and a second substrate 20 arranged opposite to each other, and also includes a sealant 30 located between the first substrate 10 and the second substrate 20. One of the first substrate 10 and the second substrate 20 may be an array substrate, and the other may be a color film substrate. For example, the first substrate 10 is an array substrate, and the second substrate 20 is a color film substrate. The display panel includes a display area AA located inside the sealant 30, and a non-display area BA located between the display area AA and the sealant 30, and the non-display area BA is located at least on one side of the display area.

[0062] In one embodiment, the arrangement direction of the multiple sub-pixels in a pixel in the display area is a first direction, and the non-display area may be located on one side or two opposite sides of the display area along the first direction.

[0063] Herein, in the display panel, the portion outside the display area AA may be referred to as the frame area BK, that is, the frame area BK includes the non-display area BA and the area where the sealant 30 is located. A portion of the non-display area BA close to the display area AA along the corresponding edge of the display area AA may be referred to as the display area periphery.

[0064] like Figure 2AAs shown, the display panel includes a main support column (Main PS) 51 and a sub-support column (Sub PS) 52, and the main support column 51 and the sub-support column 52 are both located in the display area AA. The main support column 51 and the sub-support column 52 can be both arranged on the surface of the second substrate 20 facing the first substrate 10. Generally, when the display panel is not pressed by an external force, the main support column 51 abuts against the upper surface of the first substrate 10, the main support column 51 can have a preset compression amount, and there is a gap between the sub-support column 52 and the upper surface of the first substrate 10.

[0065] The display panel further includes an auxiliary support column 40 located in the non-display area BA, and the auxiliary support column 40 can be disposed on the surface of the second substrate 20 facing the first substrate 10. When the display panel is not pressed by an external force, the compression amount of the auxiliary support column 40 on the first substrate 10 is generally 0 to 0.3 μm. The provision of the auxiliary support column 40 increases the support of the non-display area BA of the display panel and reduces the light leakage sensitivity around the display area.

[0066] As products develop, the thickness of the metal wiring in the non-display area BA on the first substrate 10 increases, resulting in the thickness of the film layer of the place-occupying part of the auxiliary support column 40 in the non-display area BA being larger than the thickness of the film layer of the place-occupying part of the support column in the display area AA. Figure 2A As shown, the compression amount of the auxiliary support column 40 is increased. In addition, in order to take into account different frame sizes, the distance between the auxiliary support column 40 and the frame sealant 30 in the non-display area BA is relatively large, about 2mm to 3mm. When the display panel is pressed by an external force, for example, the non-display area BA is pressed by an external force F, the support of the auxiliary support column 40 causes the non-display area BA to bulge relative to the display area AA, and the display area AA to be concave relative to the non-display area BA. There is a large box thickness difference ΔCG between the non-display area BA and the display area AA, resulting in light leakage and yellowing around the display area.

[0067] In this article, the placeholder portion of the support column is the portion of the first substrate 10 that contacts the support surface of the support column to support the support column. The surface of the placeholder portion of the support column is the surface of the placeholder portion that contacts the support surface. In the cross-sectional view of this article, the surface of the placeholder portion is the upper surface of the placeholder portion.

[0068] It should be noted that in the drawings of this article, the support columns are drawn according to their lengths in a natural state (i.e., an uncompressed state). When the support surface of the support column is lower than the upper surface of the corresponding placeholder, it means that the support column is in a compressed state in the display panel. For example, Figure 2A In the figure, the support surface of the auxiliary support column 40a is lower than the upper surface of the corresponding placeholder, indicating that the auxiliary support column 40a is in a compressed state in the display panel; the distance between the support surface of the support column and the surface of the corresponding placeholder can represent the compression amount of the support column, for example, Figure 2AIn the figure, d0 represents the compression amount of the auxiliary support column 40a. In addition, when not specifically stated, each of the drawings shows the state when the display panel is not pressed by an external force.

[0069] In order to solve the problems of light leakage and yellowing around the display area of ​​the display panel, the present disclosure provides a display panel, and the solution of the present disclosure is introduced in detail below.

[0070] Figure 3 is a partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure, Figure 3 The state shown is the state where the display panel is not pressed by external force. The plane schematic diagram of the display panel can refer to Figure 1 ,like Figure 1 and Figure 3 As shown, the display panel includes a first substrate 10 and a second substrate 20 arranged opposite to each other, and also includes a frame sealant 30 located between the first substrate 10 and the second substrate 20. The display panel includes a display area AA and a non-display area BA, the display area AA is located inside the frame sealant 30, and the non-display area BA is located between the display area AA and the frame sealant 30. The non-display area BA is located at least on one side of the display area AA. In other embodiments, the non-display area BA can also be arranged around the periphery of the display area AA.

[0071] The display panel includes an auxiliary support column 40, which is disposed on a surface of the second substrate 20 facing the first substrate 10 and located in the non-display area BA. Figure 3 A plurality of auxiliary support columns 40 are arranged in the horizontal direction of the non-display area BA. The gaps between the plurality of auxiliary support columns 40 and the first substrate 10 gradually increase along the width direction of the non-display area BA and the self-sealing glue 30 toward the display area AA. For example, Figure 3 In the figure, two auxiliary support columns 40 are arranged along the width direction of the non-display area BA, namely, the auxiliary support column 40a close to the frame sealing glue 30 and the auxiliary support column 40c close to the display area AA. Then, from the frame sealing glue 30 toward the display area AA, the gap between the auxiliary support column 40c and the first substrate 10 is greater than the gap between the auxiliary support column 40a and the first substrate 10.

[0072] Herein, the width direction of the non-display area can be understood as a direction perpendicular to the extension direction of the non-display area; or, the non-display area is usually arranged along the edge of the display area, and the width direction of the non-display area can also be understood as a direction perpendicular to the corresponding edge of the display area. Figure 1 In the embodiment, the width direction of the non-display area on the right side of the display area is a direction perpendicular to the right edge of the display area.

[0073] It should be noted that, in this article, the gap between the support column and the first substrate 10 should be understood in a broad sense, and the gap between the support column and the first substrate 10 can be greater than 0, equal to 0, or less than 0. The gap between the support column and the first substrate 10 is less than 0, which means that the support column is in a compressed state in the display panel. When the gap is less than 0, the larger the absolute value of the gap is, the greater the compression of the support column is.

[0074] It should be noted that, unless otherwise specified, the gap between the support column and the first substrate 10 refers to the distance between the support surface of the support column and the surface of the placeholder of the support column when the display panel is not pressed by external force. The support surface of the support column is the end surface of the support column that is used to contact the first substrate 10. In the cross-sectional view of this article, the support surface of the support column is the lower surface of the support column; the placeholder of the support column is the part of the first substrate 10 that contacts the support surface of the support column to support the support column. The surface of the placeholder of the support column is the surface of the placeholder that contacts the support surface. In the cross-sectional view of this article, the surface of the placeholder is the upper surface of the placeholder.

[0075] In the present disclosure, along the width direction of the non-display area BA and the direction of the self-sealing frame glue 30 toward the display area AA, the gap between the multiple auxiliary support columns 40 and the first substrate 10 gradually increases. It can be understood that when the auxiliary support columns 40 of the non-display area BA are all in a compressed state, along the width direction of the non-display area BA and the direction of the self-sealing frame glue 30 toward the display area AA, the compression amount of the multiple auxiliary support columns 40 on the first substrate 10 gradually decreases; or, in the non-display area BA, along the direction away from the display area AA, the compression amount of the auxiliary support columns 40 gradually increases, and the supporting force of the auxiliary support columns 40 gradually increases.

[0076] In order to more conveniently describe the technical solution of the present disclosure, Figure 4A , Figure 4B and Figure 4C The following diagrams illustrate three gap relationships between the auxiliary support column 40 and the first substrate 10 in the non-display area BA. Figure 4A , Figure 4B and Figure 4C In the embodiment, three auxiliary support columns 40 are arranged along the sealant 30 toward the display area AA, namely, auxiliary support column 40a, auxiliary support column 40b and auxiliary support column 40c. The gaps between the auxiliary support columns 40a, 40b and 40c and the first substrate 10 gradually increase. Figure 4A In the embodiment, the gap between the auxiliary support column 40a and the first substrate 10 is less than 0; Figure 4B In the embodiment, the gap between the auxiliary support column 40a and the first substrate 10 is equal to 0; Figure 4CIn the embodiment, the gap between the auxiliary support column 40a and the first substrate 10 is greater than 0. When the auxiliary support columns 40 are all in a compressed state, the compression amounts of the auxiliary support columns 40a, 40b and 40c on the first substrate 10 gradually decrease.

[0077] Exemplarily, one of the first substrate 10 and the second substrate 20 may be an array substrate, and the other may be a color filter substrate. For example, the first substrate 10 is an array substrate, and the second substrate 20 is a color filter substrate.

[0078] In the display panel of the disclosed embodiment, the non-display area BA is provided with an auxiliary support column 40, and a plurality of auxiliary support columns 40 are provided along the width direction of the non-display area BA. The self-sealing frame glue 30 faces the display area AA, and the gap between the plurality of auxiliary support columns 40 and the first substrate 10 gradually increases. Therefore, when the self-sealing frame glue 30 faces the display area AA, when the plurality of auxiliary support columns 40 are all in a compressed state, the compression amount of the plurality of auxiliary support columns 40 gradually decreases. Therefore, when the display panel is pressed by an external force, for example, the non-display area BA is pressed by an external force, the plurality of auxiliary support columns 40 can contact with the first substrate 10 to form a stacked support force, thereby reducing the light leakage sensitivity around the display area; when the display panel is pressed by an external force When the self-sealing frame glue 30 is directed toward the display area AA in the width direction of the non-display area BA, multiple auxiliary support columns 40 are in contact with the first substrate 10 in turn to form a stacked support. The auxiliary support columns 40 relatively far away from the display area AA are in contact with the first substrate 10 to form a strong support, and the auxiliary support columns 40 close to the display area AA are in contact with the first substrate 10 to form a weak support. This not only ensures that the non-display area BA has sufficient supporting force, but also that the supporting force of the non-display area BA gradually increases as it moves away from the display area AA and changes slowly. In this way, a sudden change in box thickness from the display area AA to the non-display area BA can be avoided, the difference in box thickness between the display area AA and the periphery of the display area is reduced, and light leakage and yellowing around the display area are improved.

[0079] In one embodiment, along the width direction of the non-display area BA, the gap between the auxiliary support column 40 close to the sealant 30 and the first substrate 10 is less than 0. Figure 3 In the embodiment, along the width direction of the non-display area BA, the gap between the auxiliary support column 40a close to the frame sealing glue 30 and the first substrate 10 is less than 0. Figure 4A , Figure 4B and Figure 4CThe diagrams show three situations in which the gap between the auxiliary support column 40a close to the frame sealant 30 and the first substrate 10 is less than 0, equal to 0, and greater than 0. When the gap between the auxiliary support column 40a close to the frame sealant 30 and the first substrate 10 is less than 0, when the display panel is not pressed by external force, the auxiliary support column 40a can contact the first substrate 10 to form support, thereby ensuring the uniformity of the box thickness inside the frame sealant 30 and reducing the light leakage sensitivity around the display area.

[0080] In one embodiment, the gap between the auxiliary support column 40 and the first substrate 10 near the display area AA is greater than 0. This can reduce the support force around the display area when the non-display area BA is pressed by external force, reduce the thickness difference between the display area AA and the display area, and further improve the light leakage and yellowing phenomenon around the display area.

[0081] Along the width direction of the non-display area BA, the gap between the auxiliary support column 40 near the frame sealant 30 and the first substrate 10 is 0 to -0.3 μm, which can be understood as the compression between the auxiliary support column 40 near the frame sealant 30 and the first substrate 10 is 0 to 0.3 μm. Exemplarily, the compression between the auxiliary support column 40 near the frame sealant 30 and the first substrate 10 can be 0 to 0.25 μm.

[0082] Figure 5A is a partial top view of a display panel in an embodiment of the present disclosure, Figure 5A The main diagram shows the shading layer and the supporting column. Figure 5A As shown, along the width direction of the non-display area BA, the self-sealing frame glue 30 faces the display area AA (in Figure 5A The supporting surface area of ​​the plurality of auxiliary support columns 40 gradually decreases. Figure 5A In the embodiment, from the frame sealant 30 toward the display area AA, the plurality of auxiliary support columns 40 are the auxiliary support column 40a, the auxiliary support column 40b and the auxiliary support column 40c in sequence, and the supporting surface areas of the auxiliary support columns 40a, the auxiliary support columns 40b and the auxiliary support columns 40c gradually decrease. In this way, the difference in the thickness of the display area AA and the periphery of the display area can be further reduced, and the light leakage and yellowing problems around the display area can be better improved.

[0083] It should be noted that, in this article, two or more auxiliary support columns 40 are arranged along the width direction of the non-display area BA, the auxiliary support column 40 close to the display area AA is the auxiliary support column 40 closest to the display area AA among the multiple auxiliary support columns 40, the auxiliary support column 40 close to the frame sealant 30 is the auxiliary support column 40 closest to the frame sealant 30 among the multiple auxiliary support columns 40, and the auxiliary support column 40 relatively far from the display area AA is the auxiliary support column 40 far from the display area AA relative to the auxiliary support column 40 close to the display area AA. For example, Figure 5A In the figure, the auxiliary support column 40 close to the display area AA is the auxiliary support column 40c, the auxiliary support column 40 close to the frame sealant 30 is the auxiliary support column 40a, and the auxiliary support column 40 relatively far from the display area AA is the auxiliary support column 40 (including the auxiliary support column 40a and the auxiliary support column 40b) far from the display area AA relative to the auxiliary support column 40c; Figure 3 In the embodiment, the auxiliary support column 40 close to the display area AA is the auxiliary support column 40c, and the auxiliary support column 40 close to the frame sealing glue 30 is the auxiliary support column 40a.

[0084] like Figure 5A As shown, along the width direction of the non-display area BA, the supporting surface of the auxiliary support column 40 relatively far from the display area AA may include a long strip shape, such as a rectangular or track shape. Figure 5A In the embodiment, the supporting surface of the auxiliary supporting column 40a may be in the shape of an elongated strip, and the supporting surface of the auxiliary supporting column 40b may be in the shape of an elongated strip.

[0085] For example, Figure 5A As shown, along the width direction of the non-display area BA, the supporting surface of the auxiliary supporting column 40 close to the display area AA may be in the shape of a circle or a regular polygon.

[0086] Along the width direction of the non-display area BA, and with the self-sealing frame glue 30 facing the display area AA, the supporting surface size of the multiple auxiliary support columns 40 can be gradually reduced. The supporting surface of the auxiliary support column 40 can include a length dimension and a width dimension, the length dimension is greater than or equal to the width dimension, and the length direction is perpendicular to the width direction. Along the width direction of the non-display area BA, the width dimensions of the supporting surfaces of the multiple auxiliary support columns 40 can be the same, and the self-sealing frame glue 30 faces the display area AA, and the length dimensions of the multiple auxiliary support columns 40 can be gradually reduced, so that the supporting surface area of ​​the multiple auxiliary support columns 40 can be gradually reduced.

[0087] For example, in Figure 5A In the figure, the widths of the supporting surfaces of the auxiliary supporting columns 40a, 40b and 40c are the same, and the lengths of the supporting surfaces of the auxiliary supporting columns 40a, 40b and 40c are gradually reduced.

[0088] It should be noted that, in this article, the length dimension and width dimension of the supporting surface of the auxiliary support column are relative to the dimension of the supporting surface. The length dimension of the supporting surface is the length of the supporting surface, and the width dimension of the supporting surface is the width of the supporting surface.

[0089] In one embodiment, the non-display area BA can be divided into at least two strip areas along its width direction, and the strip areas can extend along the periphery of the display area AA. At least one auxiliary support column 40 is arranged in the strip area along the width direction, for example, Figure 5A In the figure, the non-display area BA is divided into three strip areas, and the self-sealing frame glue 30 is sequentially the first strip area DA1, the second strip area DA2 and the third strip area DA3 facing the display area AA. An auxiliary support column 40a is arranged in the first strip area DA1, two auxiliary support columns 40b are arranged in the second strip area DA2 along the width direction, and four auxiliary support columns 40c are arranged in the third strip area DA3 along the width direction. Along the width direction of the non-display area BA and the self-sealing frame glue 30 facing the display area AA, the gap between the multiple auxiliary support columns 40 and the first substrate 10 gradually increases. It can be understood that along the width direction of the non-display area BA and the self-sealing frame glue 30 facing the display area AA, the gap between the auxiliary support columns 40 located in each strip area and the first substrate 10 gradually increases. In other words, the gaps between the auxiliary support columns 40a, the auxiliary support columns 40b and the auxiliary support columns 40c and the first substrate 10 gradually increase, and the gaps between the auxiliary support columns 40 and the first substrate 10 in the same strip area can be equal.

[0090] It should be noted that, in this article, when two or more auxiliary support columns 40 are arranged along the width direction in the strip area, the comparison of the supporting surface area and size of the auxiliary support columns 40 along the width direction of the non-display area BA are all compared relative to each strip area; the dimensional characteristics of multiple auxiliary support columns 40 located in the same strip area can be the same.

[0091] In one embodiment, the auxiliary support column 40 relatively far from the display area AA may include a first auxiliary support column 401. The support surface of the first auxiliary support column 401 includes a long strip shape. The length direction of the first auxiliary support column 401 is parallel to the width direction of the non-display area BA. For example, Figure 5A In the embodiment, the first auxiliary support column 401 includes auxiliary support columns 40a and 40b, the support surfaces of the auxiliary support columns 40a and 40b are both strip-shaped, and the length direction of the support surface is parallel to the width direction of the non-display area BA.

[0092] Figure 5B is a partial top view of a display panel in another embodiment of the present disclosure, Figure 5B In one embodiment, the auxiliary support column 40 relatively far from the display area AA includes a second auxiliary support column 402, the support surface of the second auxiliary support column 402 includes a strip shape, and the length direction of the second auxiliary support column 402 is perpendicular to the width direction of the non-display area BA. Figure 5B In the embodiment, the second auxiliary support column 402 includes an auxiliary support column 40b, the support surface of the auxiliary support column 40b is in the shape of a long strip, and the length direction of the support surface is perpendicular to the width direction of the non-display area BA. Figure 5BIn the embodiment, the first auxiliary support column 401 is the auxiliary support column 40a. In another embodiment, the length directions of the support surfaces of the auxiliary support columns 40a and 40b can be set to be perpendicular to the width direction of the non-display area BA.

[0093] refer to Figure 3 , Figure 4 and Figure 5A The second substrate 20 may include a second substrate 21, and a first light shielding strip 221 and a light shielding portion 223 located on the side of the second substrate 21 facing the first substrate 10. The first light shielding strip 221 is located in the display area AA and between two adjacent rows of sub-pixels, and the light shielding portion 223 is located in the non-display area BA. Here, "row" refers to a direction, and the extension direction of the row is consistent with the width direction of the non-display area.

[0094] The auxiliary support column 40 is located on the side of the light shielding portion 223 away from the second substrate 21. The orthographic projection of the auxiliary support column 40 on the second substrate 21 at least partially overlaps with the orthographic projection of the extension of the first light shielding strip 221 in the non-display area BA on the second substrate 21. Figure 5A or Figure 5B In the figure, the first shading strip 221 extends to the frame sealing glue 30, the part of the first shading strip 221 extending in the non-display area BA is the extension part, and the orthographic projection of the auxiliary support column 40 on the second substrate 21 at least partially overlaps with the orthographic projection of the extension part of the first shading strip 221 in the non-display area BA on the second substrate 21.

[0095] Exemplarily, when the length direction of the auxiliary supporting column 40 is parallel to the width direction of the non-display area BA, the orthographic projection of the auxiliary supporting column 40 on the second substrate 21 may be located within the orthographic projection of the extension portion on the second substrate 21 .

[0096] Generally, the orthographic projections of the main support column 51 and the auxiliary support column 52 located in the display area AA on the second substrate 21 are located within the orthographic projection of the first shading strip 221 on the second substrate 21, and the orthographic projection of the auxiliary support column 40 on the second substrate 21 is set to at least partially overlap with the orthographic projection of the extension portion on the second substrate 21, which can ensure the uniformity of the support column in the extension direction of the first shading strip 221. This is conducive to the stability of the thickness of the liquid crystal box.

[0097] For example, the plurality of auxiliary support columns 40 arranged along the extension direction of the edge corresponding to the display area AA are evenly spaced, so as to ensure the uniformity of the thickness of the non-display area BA in the extension direction of the edge corresponding to the display area AA, and ensure the uniformity of the display effect around the display area. Figure 5A and Figure 5BIn the non-display area BA, the extension direction along the left edge of the display area AA is the vertical direction, and the non-display area BA is extended in the vertical direction. In the non-display area BA, multiple auxiliary support columns, such as multiple auxiliary support columns 40a, are evenly distributed along the vertical direction; Figure 5A and Figure 5B In the figure, the multiple auxiliary support columns arranged along the extension direction of the left edge of the display area AA can be a column of auxiliary support columns, and the auxiliary support columns 40b located in the same column are evenly spaced in the vertical direction, and the auxiliary support columns 40c located in the same column are evenly spaced in the vertical direction.

[0098] In the non-display area BA, along the extension direction of the edge corresponding to the display area AA, that is, along the extension direction of the non-display area BA, the distance between two adjacent auxiliary support columns 40 can be set as needed. For example, when the length direction of the auxiliary support column 40 is parallel to the width direction of the non-display area BA, the distance between two adjacent auxiliary support columns 40 can be the size of one sub-pixel or two or more sub-pixels. Figure 5A In the embodiment, in the extension direction of the non-display area BA, the distance between two adjacent auxiliary supporting columns 40 is the size of one sub-pixel.

[0099] Figure 6 Schematic diagram of a top view of a display panel in an embodiment of the present disclosure. In one embodiment, the display area may include a plurality of pixels, the pixels include a plurality of sub-pixels arranged along a first direction, and the non-display area may be located on at least one side of the display area along the first direction. For example, Figure 6 In the embodiment, the pixel includes three sub-pixels R, G, and B, and the three sub-pixels R, G, and B are arranged in a horizontal direction, and the first direction is a horizontal direction. The non-display area may be located on at least one side of the display area in the horizontal direction. Figure 6 Two non-display areas BA1 and BA2 are provided in the display area, and the two non-display areas BA1 and BA2 are respectively located on the left and right sides of the display area along the horizontal direction.

[0100] like Figure 6 As shown, the display panel may further include an edge region BC located along a second direction at least on one side of the display region, and the second direction is perpendicular to the first direction. Figure 6 The second direction is a vertical direction, and the edge area BC is located on the upper side and / or the lower side of the display area AA along the vertical direction. Figure 6 , a first edge region BC1 located on the upper side of the display region AA and a second edge region BC2 located on the lower side of the display region are shown. An auxiliary support column 61 may be provided in the edge region BC, and the support surface of the auxiliary support column 61 may be in the shape of a strip or other shapes, which are not specifically limited here. In actual implementation, the structure and size of the auxiliary support column may be provided as required.

[0101] In one embodiment, Figure 6 As shown, along the width direction of the non-display area BA, the auxiliary support column 40 relatively far from the display area AA includes an auxiliary support wall 403, and the auxiliary support wall 403 is continuously arranged along the extension direction of the corresponding edge of the display area AA (that is, the extension direction of the non-display area BA). In this way, the uniformity of the box thickness of the non-display area BA in the extension direction can be further ensured, and the uniformity of the display effect around the display area can be ensured.

[0102] For example, Figure 5A and Figure 5B In the embodiment, the auxiliary support column 40a can be set as an auxiliary support wall; and / or, the auxiliary support column 40b can be set as an auxiliary support wall. In a specific implementation, the second auxiliary support column 402 can be set as an auxiliary support wall. The supporting surface of the auxiliary support wall is in the shape of a long strip, and the second auxiliary support column 402 includes an auxiliary support wall.

[0103] like Figure 3 As shown, the display panel further includes a plurality of main support columns 51 and a plurality of auxiliary support columns 52, which are located in the display area AA and are arranged on the surface of the second substrate 20 facing the first substrate 10. The main support columns 51 abut against the first substrate 10.

[0104] It should be noted that the drawings in the present disclosure schematically illustrate the relative positional relationship of various components or film layers, and the dimensions in the drawings do not represent the actual dimensions. Figure 3 The horizontal dimensions of the support columns and the color films do not represent their actual sizes.

[0105] In one embodiment, the second substrate 20 includes a second substrate 21, and a light shielding layer 22, a color resist layer 23, and a planar layer 24 sequentially disposed on the second substrate 21 facing the first substrate 10. It is understood that the light shielding layer 22 may be formed first, and then the color resist layer 23 may be formed; or the color resist layer 23 may be formed first, and then the light shielding layer 22 may be formed.

[0106] For example, as described below Fig. 9 As shown, the surface of the planar layer 24 located in the non-display area BA is closer to the second substrate 21 than the surface of the planar layer 24 located in the display area AA, that is, the planar layer 24 includes a first portion 241 located in the non-display area BA and a second portion 242 located in the display area AA, and the distance between the surface of the first portion 241 and the second substrate 21 is smaller than the distance between the surface of the second portion 242 and the second substrate 21. Thus, the auxiliary support column 40 is formed on a shorter surface than the main support column 51 and the secondary support column 52 in the display area AA, which is beneficial to the preparation of the auxiliary support column 40.

[0107] Figure 7Schematic partial cross-sectional view of a display panel according to another embodiment of the present disclosure; Figure 8 Schematic partial cross-sectional view of a display panel according to yet another embodiment of the present disclosure; Fig. 9 Schematic partial cross-sectional view of a display panel according to still another embodiment of the present disclosure.

[0108] In one embodiment, as Figure 7 shown, the second substrate 20 includes a second substrate 21 and a color filter layer 23 located on the side of the second substrate 21 facing the first substrate 10. The color filter layer 23 includes a color film layer 231 located in the display area AA and a support layer 232 located in the non-display area BA. The thickness d1 of the support layer 232 is less than the thickness d2 of the color film layer 231, that is, d1 < d2. This is beneficial for realizing that the distance between the surface of the first part 241 and the second substrate 21 is less than the distance between the surface of the second part 242 and the second substrate 21, and for the auxiliary support pillar 40 to be formed on a lower surface compared to the main support pillar 51 and the auxiliary support pillar 52 in the display area AA, which is beneficial for the preparation of the auxiliary support pillar 40.

[0109] For example, the color film layer 231 may include a first color film, a second color film, and a third color film. If the thickness of the first color film is the smallest, then the support layer 232 may be arranged on the same layer as the first color film. Thus, the thickness of the support layer 232 is less than the average thickness of the color film layer 231. Alternatively, during the formation of the color filter layer 23, the color filter layer 23 in the non-display area BA is thinned so that the thickness of the support layer 232 is less than the thickness of the color film layer 231.

[0110] In one embodiment, as Figure 8 shown, the second substrate 20 includes a second substrate 21 and a light-shielding layer 22 located on the side of the second substrate 21 facing the first substrate 10. The light-shielding layer 22 includes a black matrix located in the display area AA and a light-shielding portion 223 located in the non-display area BA. The thickness d3 of the light-shielding portion 223 is less than the thickness d4 of the black matrix. This is also beneficial for realizing that the distance between the surface of the first part 241 and the second substrate 21 is less than the distance between the surface of the second part 242 and the second substrate 21, and further for the auxiliary support pillar 40 to be formed on a lower surface compared to the main support pillar 51 and the auxiliary support pillar 52 in the display area AA, which is beneficial for the preparation of the auxiliary support pillar 40.

[0111] In one embodiment, as Fig. 9As shown, the second substrate 20 includes a second substrate 21, and a flat layer 24 located on the side of the second substrate 21 facing the first substrate 10. The flat layer 24 includes a first portion 241 located in the non-display area BA and a second portion 242 located in the display area AA, and the thickness d5 of the first portion 241 is less than the thickness d6 of the second portion 242. In this way, the distance between the surface of the first portion 241 and the second substrate 21 can be less than the distance between the surface of the second portion 242 and the second substrate 21, thereby realizing that the auxiliary support column 40 is formed on a shorter surface than the main support column 51 and the secondary support column 52 in the display area AA, which is conducive to the preparation of the auxiliary support column 40.

[0112] Forming the auxiliary support columns 40 on a lower surface is conducive to setting a gap between the auxiliary support columns 40 and the first substrate 10, preventing the non-display area BA from being lifted up by the auxiliary support columns 40, and avoiding light leakage and yellowing problems around the display area; and after the display panel is pressed by external force, the auxiliary support columns 40 in the non-display area BA can contact the first substrate 10 to play a supporting role.

[0113] In one embodiment, Figure 3 As shown, the distance W between the auxiliary support column 40 close to the frame sealant 30 and the frame sealant 30 is 2mm to 3mm. Such a setting can meet the different frame requirements of users. For example, when the user needs a smaller frame, that is, the width of the frame area BK is smaller, the frame sealant 30 can be moved inward by an appropriate distance, and then cut along the frame sealant 30, so that a display panel with a smaller frame can be obtained while keeping the size of the display area AA unchanged, taking into account different frame requirements.

[0114] Typically, the size of the border area BK can be set to 6 mm, 5 mm or 4.4 mm. By setting the distance W between the auxiliary support column 40 close to the frame sealing glue 30 and the frame sealing glue 30 to an appropriate value between 2 mm and 3 mm, different border requirements can be met and the size of the display area AA can be kept unchanged.

[0115] In one embodiment, the display panel may further include a peripheral support column located outside the frame sealant 30, and the peripheral support column may be disposed on the surface of the second substrate 20 facing the first substrate 10. The peripheral support column may assist in positioning the frame sealant 30 and play a certain supporting role to avoid the risk of chipping during the display panel cutting process.

[0116] The specific size of the peripheral support column can be set as needed. For example, the size of the peripheral support column can be the same as that of the auxiliary support column 40 close to the frame sealant 30 in the non-display area BA.

[0117] For example, the width of the sealant 30 can be 1.2 mm to 1.8 mm, and its specific size can be set as needed. In the non-display area BA, along the width direction of the non-display area BA, the distance between two adjacent auxiliary support columns 40 can be 0.8 mm to 1 mm, and can be set as needed.

[0118] For example, the length of the auxiliary support column 40 relatively far away from the display area AA may be 30 μm to 1400 μm, and the specific value of the length may be set as required.

[0119] Fig.10 FIG. 1 is a partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure. Fig.10 As shown, the first substrate 10 includes a first substrate 11 , and a first insulating layer 12 and a second insulating layer 13 located on a side of the first substrate 11 facing the second substrate 20 .

[0120] Exemplarily, the first insulating layer 12 includes a third portion 121 located in the non-display area BA and a fourth portion 122 located in the display area AA, and the thickness of the third portion 121 is less than the thickness of the fourth portion 122. This is conducive to reducing the height of the place-occupying portion of the auxiliary support column 40, thereby facilitating setting the gap between the auxiliary support column 40 and the place-occupying portion, thereby realizing the present technical solution.

[0121] In another embodiment, the second insulating layer 13 includes a fifth portion 131 located in the non-display area BA and a sixth portion 132 located in the display area AA, and the thickness of the fifth portion 131 is less than the thickness of the sixth portion 132. This can also be beneficial to set a gap between the auxiliary support column 40 and the placeholder, thereby realizing the technical solution.

[0122] In one embodiment, the thickness of the third portion 121 may be smaller than the thickness of the fourth portion 122 , and the thickness of the fifth portion 131 may be smaller than the thickness of the sixth portion 132 .

[0123] In order to make the thickness of the third part 121 smaller than the thickness of the fourth part 122, when forming the first insulating layer 12, the non-display area BA can be slightly shielded so that the thickness of the first insulating layer 12 deposited in the non-display area BA is smaller than the thickness of the first insulating layer 12 deposited in the display area AA; or, when preparing the first insulating layer 12, the first insulating layer 12 in the non-display area BA is thinned.

[0124] In order to make the thickness of the fifth part 131 smaller than the thickness of the sixth part 132, when forming the second insulating layer 13, the non-display area BA can be slightly shielded so that the thickness of the second insulating layer 13 deposited in the non-display area BA is smaller than the thickness of the second insulating layer 13 deposited in the display area AA; alternatively, when preparing the second insulating layer 13, the first insulating layer 12 in the non-display area BA is thinned.

[0125] In one embodiment, the second insulating layer may include an organic resin layer and an inorganic material layer stacked in layers, and the organic resin layer mainly plays a planarization role. The thickness of the organic resin layer in the non-display area BA may be less than the thickness of the organic resin layer in the display area AA, or the thickness of the organic resin layer in the non-display area BA may be 0. When coating the organic resin layer, the non-display area BA may be shielded or not coated, so that the thickness of the organic resin layer formed in the non-display area BA is less than the thickness of the organic resin layer in the display area AA; or, when forming the organic resin layer, the organic resin layer in the non-display area BA may be thinned.

[0126] In one embodiment, the first substrate 10 includes a first substrate 11 and a first structure portion 51 and a second structure portion 52 located on the side of the first substrate 11 facing the second substrate 20. The first structure portion 51 and the second structure portion 52 are both located in the non-display area BA. The orthographic projection of the auxiliary support column 40 relatively far from the display area AA on the first substrate 11 is located within the orthographic projection of the first structure portion 51 on the first substrate 11, so that the first structure portion 51 is a placeholder for the auxiliary support column 40 relatively far from the display area AA.

[0127] The orthographic projection of the auxiliary support column 40 near the display area AA on the first substrate 11 is located within the orthographic projection of the second structure part 52 on the first substrate 11, so that the second structure part 52 is the place-occupying part of the auxiliary support column 40 near the display area AA. The thickness of the first structure part 51 is greater than the thickness of the second structure part 52, so that the auxiliary support column 40 relatively far from the display area AA occupies the higher surface of the first structure part 51, and the auxiliary support column 40 near the display area AA occupies the lower surface of the second structure part 52, which is conducive to setting the gap between the auxiliary support column 40 relatively far from the display area AA and the first substrate 10 to be smaller than the gap between the auxiliary support column 40 near the display area AA and the first substrate 10, so that when the display panel is pressed by external force, the auxiliary support column 40 relatively far from the display area AA will first contact with the surface of the first structure part 51 to provide stronger support, and the auxiliary support column 40 near the display area AA will contact with the surface of the second structure part 52 to provide weaker support.

[0128] By setting the thickness of the first structural part 51 to be greater than the thickness of the second structural part 52, the technical solution of the present disclosure can be implemented when the auxiliary support column 40 relatively far from the display area AA is at the same height as the auxiliary support column 40 close to the display area AA, thereby reducing the difficulty of preparing the auxiliary support column 40.

[0129] In one embodiment, the first structure portion 51 includes a first metal pattern 141 , and the second structure portion 52 includes a second metal pattern 142 . The thickness of the first metal pattern 141 is greater than the thickness of the second metal pattern 142 , thereby facilitating that the thickness of the first structure portion 51 is greater than the thickness of the second structure portion 52 .

[0130] Fig.11 1 is a schematic top view of a non-display area of ​​a first substrate in a display panel according to an embodiment of the present disclosure. Fig.11 The figure shows the orthographic projection of the auxiliary support column 40a relatively far from the display area AA on the first substrate 11, and the orthographic projection of the auxiliary support column 40c close to the display area AA on the first substrate 11. The first metal pattern 141 includes at least a portion of the first metal routing, and the second metal pattern 142 includes at least a portion of the second metal routing. The orthographic projection of the auxiliary support column 40a on the first substrate 11 is located on the first metal pattern 141, that is, the auxiliary support column 40a occupies the first metal routing. The orthographic projection of the auxiliary support column 40c on the first substrate 11 is located on the second metal pattern 142, that is, the auxiliary support column 40c occupies the second metal routing. The thickness of the first metal routing is greater than the thickness of the second metal routing, so in the cross-sectional view Fig.10 In the embodiment, the auxiliary support column 40a has a higher surface than the auxiliary support column 40c. When the display panel is pressed by an external force, the auxiliary support column 40a contacts the first substrate 10 earlier than the auxiliary support column 40c.

[0131] The first substrate includes a gate line and a data line located on the first substrate. Usually, the gate line is composed of a first metal material layer, the data line is composed of a second metal material layer, and the thickness of the gate line is greater than the thickness of the data line. In this case, the first metal wiring can be arranged in the same layer as the gate line, and the second metal wiring can be arranged in the same layer as the data line, so that the thickness of the first metal wiring is greater than the thickness of the second metal wiring.

[0132] In another embodiment, the gate line is composed of a first metal material layer, and the data line includes a semiconductor material layer and a second metal material layer that are stacked, so that the thickness of the data line is greater than the thickness of the gate line. In this case, the first metal wiring can be arranged in the same layer as the data line, and the second metal wiring can be arranged in the same layer as the gate line, so that the thickness of the first metal wiring is greater than the thickness of the second metal wiring.

[0133] In one embodiment, the first substrate includes a first substrate 11 and a first metal trace and a second metal trace located on the side of the first substrate 11 facing the second substrate, and the first metal trace and the second metal trace are both located in the non-display area and in different metal layers. The first metal trace includes a first line segment extending along a third direction, and the second metal trace includes a second line segment extending along a fourth direction, and the positive projection of the auxiliary support column relatively far from the display area on the first substrate overlaps with the positive projection of the first line segment on the first substrate. The second line segment includes a transition segment, and the transition segment allows the second line segment to avoid the positive projection of the auxiliary support column relatively far from the display area on the first substrate. The thickness of the first metal trace is greater than the thickness of the second metal trace, and the fourth direction is not parallel to the third direction. It should be noted that the first line segment extends along the third direction, which should be understood as the first line segment extending substantially along the third direction; the second line segment extends along the fourth direction, which should be understood as the second line segment extending substantially along the fourth direction.

[0134] It should be noted that, in the first substrate, a gate driving circuit (GOA) is usually disposed in the non-display area, so the first metal wiring and the second metal wiring may be part of the wiring in the gate driving circuit.

[0135] Fig. 12A is a schematic top view of a non-display area of ​​a first substrate in the related art, Fig. 12B Schematic diagram of a top view of a non-display area of ​​a first substrate in an embodiment of the present disclosure. The first substrate includes a first substrate and a first metal trace and a second metal trace disposed on the first substrate. The first metal trace and the second metal trace are both located in the non-display area and in different metal layers. The first metal trace includes a first line segment 61a extending along a third direction, and the second metal trace includes second line segments 62a and 62b extending along a fourth direction. Fig. 12A FIG. 4 shows a pre-set position F of the auxiliary support column 40a relatively far from the display area AA, but the area where the position F is located has not only the first line segment 61a but also the second line segments 62a and 62b. In order to make the auxiliary support column 40a occupy the first metal trace 61 but not the second metal trace 62, a part of the second line segment 62b can be moved downward and connected to another part of the second line segment 62b through an inclined transition segment 63, as shown in FIG. Fig. 12BAs shown, after a part of the second line segment 62b is moved downward, it is connected to another part of the second line segment 62b through the inclined transition segment 63, so that there is enough space between the second line segment 62a and the second line segment 62b to accommodate the auxiliary support column 40a. The second line segment 62b avoids the position F by setting the transition segment 63, so that the auxiliary support column 40a only occupies the first metal trace 61 (i.e., the first metal pattern 141). Exemplarily, the inclination angle of the transition segment 63 and the extension direction of the second line segment 62b can be between 0 and 90 degrees, and the specific angle value can be set as needed.

[0136] In other embodiments, the routing method of the metal routing can be adjusted so that the auxiliary support column 40 close to the display area AA is only located on the second metal routing and avoids the first metal routing, so that the auxiliary support column 40 relatively far from the display area AA is located on a higher (thicker) metal layer, and the auxiliary support column 40 close to the display area AA is located on a shorter (thicker) metal layer. The specific adjustment method of the metal routing can be determined according to the actual wiring situation and is not specifically limited here.

[0137] Fig.13A is a schematic top view of a non-display area of ​​a first substrate in the related art, Fig. 13B FIG. 1 is a schematic top view of the non-display area of ​​the first substrate in one embodiment of the present disclosure. Fig.13A FIG. 4 shows a pre-set position G of the auxiliary support column 40c near the display area AA, but the area where the position G is located has a first via K1. The first metal trace includes a third line segment 61c, and the second metal trace includes a fourth line segment 62c. The third line segment 61c is connected to the fourth line segment 62c through the first via K1. In order to make the auxiliary support column 40c occupy the second metal trace 62 instead of the first metal trace 61, the position of the first via K1 can be adjusted. For example, Fig. 13B In the example, the position of the first via K1 is relative to Fig.13A Adjust upward so that the first via K1 is close to the second via K2 and away from the third via K3, so that there is enough space between the first via K1 and the third via K3 to accommodate the auxiliary support column 40c, and the auxiliary support column 40c is located on the fourth line segment 62c (i.e., the second metal pattern 151) of the second metal wiring 62. Therefore, the orthographic projection (40c) of the auxiliary support column close to the display area on the first substrate and the orthographic projection of the fourth line segment 62c on the first substrate have an overlapping area, the first via K1 avoids the orthographic projection (40c) of the auxiliary support column close to the display area on the first substrate, and the thickness of the first metal wiring is greater than the thickness of the second metal wiring.

[0138] It should be noted that although Fig.11The auxiliary support column 40a is used in the figure, but it does not mean that the auxiliary support column 40a is the same as the auxiliary support column 40a in the cross-sectional view. 40a is used to indicate that it is an auxiliary support column relatively far away from the display area or an auxiliary support column close to the frame sealing glue; similarly, the auxiliary support column 40c is used in Figure 12, but it does not mean that the auxiliary support column 40c is the same as the auxiliary support column 40c in the cross-sectional view. 40c is used to indicate that it is an auxiliary support column close to the display area.

[0139] In other embodiments, the vias can be adjusted so that the auxiliary support column 40 relatively far away from the display area AA is only located on the first metal wiring 61 and avoids the second metal wiring 62, so that the auxiliary support column 40 relatively far away from the display area AA is located on a higher (thicker) metal layer, and the auxiliary support column 40 close to the display area AA is located on a shorter (thicker) metal layer.

[0140] The specific adjustment method of the via can be determined according to the actual wiring situation. For example, the position of the via can be adjusted or the number of sub-vias in the via can be adjusted, such as reducing the 6 sub-vias in the via to 5 sub-vias, 4 sub-vias, 3 sub-vias, 2 sub-vias, or 1 sub-via, to reduce the area of ​​the entire via, thereby reserving enough space for the auxiliary support column 40, so that the auxiliary support column 40 relatively far from the display area AA occupies a higher (thicker) metal layer, and the auxiliary support column 40 close to the display area AA occupies a shorter (thicker) metal layer. The specific adjustment method of the via can be set as needed, and is not specifically limited here.

[0141] By adjusting the metal routing and / or via positions of the non-display area BA of the first substrate 10, it is possible to achieve that the auxiliary support column 40 close to the frame-sealing glue 30 is located on a higher (thicker) metal layer, and the auxiliary support column 40 close to the display area AA is located on a thinner (thicker) metal layer. In this way, the gap between the auxiliary support column 40 close to the display area AA and the first substrate 10 can be increased, and the periphery of the display area will not be raised, the difference in film thickness between the display area AA and the periphery of the display area is reduced, and yellowing of the periphery of the display area is avoided; moreover, when the display panel is pressed by external force, the auxiliary support column 40 close to the frame-sealing glue 30 contacts the first substrate 10 preferentially relative to the auxiliary support column 40 close to the display area AA, thereby playing a certain supporting role.

[0142] For example, Fig.10As shown, the first structure part 51 may include a first insulating layer 12, a first metal pattern 141, and a second insulating layer 13, and the second structure part 52 may include a first insulating layer 12, a second metal pattern 142, and a second insulating layer 13. The first insulating layer 12 may be a portion of the first insulating layer 12 located in the non-display area BA, and the second insulating layer 13 may be a portion of the second insulating layer 13 located in the non-display area BA. For example, the first insulating layer 12 may be the third portion 121, and the second insulating layer 13 may be the fifth portion 131.

[0143] The first substrate 10 may further include a gate line and a data line located in the display area AA, and the first metal pattern 141 may be disposed in the same layer as the gate line, and the second metal pattern 142 may be disposed in the same layer as the data line. Generally, the thickness of the gate line is greater than the thickness of the data line, and the first metal pattern 141 is disposed in the same layer as the gate line, and the second metal pattern 142 is disposed in the same layer as the data line, which is conducive to achieving that the thickness of the first metal pattern 141 is greater than the thickness of the second metal pattern 142, and will not affect the process of the first substrate 10.

[0144] In one embodiment, Fig.10 As shown, the first substrate 10 further includes a hollow structure LK disposed on the side of the first substrate 11 facing the sealant 30, and the hollow structure LK is located between the first substrate 11 and the sealant 30. The hollow structure LK can improve the stability of the sealant 30 and provide stability for the display panel. The hollow structure LK can be disposed in the same layer as the gate line or the data line.

[0145] The display panel in the embodiment of the present disclosure may further include liquid crystal between the first substrate 10 and the second substrate 20 , so that the display panel is a liquid crystal display panel.

[0146] In an exemplary embodiment, the first insulating layer and the second insulating layer may be made of any one or more of silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride (SiON), and may be a single layer, a multilayer or a composite layer. The metal trace may be made of metal materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or alloy materials of the above metals, such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), and may be a single layer structure, or a multilayer composite structure, such as Ti / Al / Ti, etc.

[0147] Based on the inventive concept of the above embodiments, the embodiments of the present disclosure further provide a display device, which includes a display panel using the above embodiments. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc.

[0148] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0149] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0150] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0151] In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0152] The disclosure above provides many different embodiments or examples to implement different structures of the present disclosure. In order to simplify the present disclosure, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0153] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various changes or replacements within the technical scope disclosed in the present disclosure. Different parts in different embodiments can be combined with each other without conflict, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel comprises a first substrate and a second substrate arranged opposite to each other, and also comprises a frame sealant located between the first substrate and the second substrate; the display panel comprises a display area located inside the frame sealant, and a non-display area located between the display area and the frame sealant, wherein the non-display area is located at least on one side of the display area; The display panel also includes an auxiliary supporting column, which is arranged on the surface of the second substrate facing the first substrate and is located in the non-display area; a plurality of auxiliary supporting columns are arranged along the width direction of the non-display area, and the gap between the plurality of auxiliary supporting columns and the first substrate gradually increases along the width direction of the non-display area and from the frame sealing glue toward the display area.

2. The display panel according to claim 1, characterized in that: Along the width direction of the non-display area, a gap between the auxiliary support column close to the frame sealant and the first substrate is less than 0; and / or a gap between the auxiliary support column close to the display area and the first substrate is greater than 0.

3. The display panel according to claim 1, characterized in that: Along the width direction of the non-display area, a gap between the auxiliary support column close to the frame-sealing glue and the first substrate is 0 to -0.3 μm.

4. The display panel according to claim 1, characterized in that: Along the width direction of the non-display area and from the frame sealant toward the display area, the supporting surface areas of the plurality of auxiliary supporting columns gradually decrease.

5. The display panel according to claim 1, characterized in that: Along the width direction of the non-display area, the supporting surface of the auxiliary supporting column relatively far away from the display area includes a strip shape; and / or, Along the width direction of the non-display area, the supporting surface of the auxiliary supporting column close to the display area has a shape including a circle or a regular polygon.

6. The display panel according to claim 1, characterized in that: The auxiliary support column relatively far from the display area includes a first auxiliary support column, the support surface of the first auxiliary support column includes a strip shape, and the length direction of the first auxiliary support column is parallel to the width direction of the non-display area; and / or, The auxiliary support column relatively far from the display area includes a second auxiliary support column, the support surface of the second auxiliary support column is in a strip shape, and the length direction of the second auxiliary support column is perpendicular to the width direction of the non-display area.

7. The display panel according to claim 1, characterized in that: A plurality of auxiliary support columns arranged along the extension direction of the corresponding edge of the display area are evenly distributed at intervals.

8. The display panel according to claim 1, characterized in that: Along the width direction of the non-display area, the auxiliary support column relatively far away from the display area includes an auxiliary support wall, and the auxiliary support wall is continuously arranged along the extension direction of the corresponding edge of the display area.

9. The display panel according to claim 1, characterized in that: The non-display area is divided into at least two strip areas along the width direction, and at least one auxiliary support column is arranged in the strip area along the width direction. From the frame sealing glue toward the display area, the gap between the auxiliary support column in each strip area and the first substrate gradually increases.

10. The display panel according to claim 1, characterized in that: The second substrate includes a second substrate, and a first shading strip and a shading portion located on a side of the second substrate facing the first substrate, the first shading strip being located in the display area and between two adjacent rows of sub-pixels, the shading portion being located in the non-display area, the auxiliary supporting column being located on a side of the shading portion away from the second substrate, and an orthographic projection of the auxiliary supporting column on the second substrate at least partially overlapping with an orthographic projection of an extension portion of the first shading strip in the non-display area on the second substrate.

11. The display panel according to any one of claims 1 to 10, characterized in that: The second substrate comprises a second underlayer, and a color resist layer located on a side of the second underlayer facing the first substrate, the color resist layer comprises a color filter layer located in the display area and a support layer located in the non-display area, and the thickness of the support layer is less than the thickness of the color filter layer; and / or, The second substrate comprises a second underlay, and a light shielding layer located on a side of the second underlay facing the first substrate, the light shielding layer comprises a black matrix located in the display area and a light shielding portion located in the non-display area, and a thickness of the light shielding portion is less than a thickness of the black matrix; and / or, The second substrate includes a second substrate and a flat layer located on a side of the second substrate facing the first substrate, the flat layer includes a first portion located in the non-display area and a second portion located in the display area, and the thickness of the first portion is smaller than the thickness of the second portion.

12. The display panel according to any one of claims 1 to 10, characterized in that: The first substrate includes a first substrate, and a first insulating layer and a second insulating layer located on a side of the first substrate facing the second substrate, wherein: The first insulating layer includes a third portion located in the non-display area and a fourth portion located in the display area, and the thickness of the third portion is less than the thickness of the fourth portion; and / or the second insulating layer includes a fifth portion located in the non-display area and a sixth portion located in the display area, and the thickness of the fifth portion is less than the thickness of the sixth portion.

13. The display panel according to any one of claims 1 to 10, characterized in that: The first substrate includes a first substrate and a first structural portion and a second structural portion located on a side of the first substrate facing the second substrate, the first structural portion and the second structural portion are both located in the non-display area, the orthographic projection of an auxiliary supporting column relatively far away from the display area on the first substrate is located within the orthographic projection of the first structural portion on the first substrate, the orthographic projection of an auxiliary supporting column close to the display area on the first substrate is located within the orthographic projection of the second structural portion on the first substrate, and the thickness of the first structural portion is greater than the thickness of the second structural portion.

14. The display panel according to claim 13, characterized in that: The first structure portion includes a first metal pattern, the second structure portion includes a second metal pattern, and a thickness of the first metal pattern is greater than a thickness of the second metal pattern.

15. The display panel according to any one of claims 1 to 10, characterized in that: The first substrate comprises a first substrate and a first metal trace and a second metal trace located on a side of the first substrate facing the second substrate, the first metal trace and the second metal trace are both located in the non-display area and in different metal layers, the first metal trace comprises a first line segment extending along a third direction, the second metal trace comprises a second line segment extending along a fourth direction, an orthographic projection of an auxiliary support column relatively far from the display area on the first substrate and an orthographic projection of the first line segment on the first substrate have an overlapping area, the second line segment comprises a transition segment, the transition segment enables the second line segment to avoid the orthographic projection of the auxiliary support column relatively far from the display area on the first substrate, the thickness of the first metal trace is greater than the thickness of the second metal trace, and the fourth direction is not parallel to the third direction; and / or, The first substrate includes a first substrate and a first metal routing and a second metal routing located on a side of the first substrate facing the second substrate, the first metal routing and the second metal routing are both located in the non-display area and in different metal layers, the first metal routing includes a third line segment, the second metal routing includes a fourth line segment, the third line segment and the fourth line segment are connected through a via, an orthographic projection of an auxiliary support column close to the display area on the first substrate and an orthographic projection of the fourth line segment on the first substrate have an overlapping area, the via avoids the orthographic projection of the auxiliary support column close to the display area on the first substrate, and the thickness of the first metal routing is greater than the thickness of the second metal routing.

16. The display panel according to claim 1, characterized in that: The distance between the auxiliary support column close to the frame sealing glue and the frame sealing glue is 2mm-3mm.

17. The display panel according to claim 1, characterized in that: The display area includes a plurality of pixels, each pixel includes a plurality of sub-pixels arranged along a first direction, and the non-display area is located at at least one side of the display area along the first direction.

18. The display panel according to claim 1, characterized in that: It also includes a peripheral support column located outside the frame sealing glue, and the peripheral support column is arranged on the surface of the second substrate facing the first substrate.

19. A display device, characterized in that: A display panel comprising any one of claims 1-18.

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