Display panel and display device

Abstract

The embodiment of the invention 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 technical field of display, and in particular, to a display panel and a display device. BACKGROUND

[0002] With the development of the market, there is an increasing demand for the size of liquid crystal display panels (LCDs), and as the size increases, the picture quality of the LCD panel is at greater risk. When the LCD panel is pressed by external force, it is easy to cause non-uniform gaps, and thus a light leakage phenomenon that can be recognized by the human eye, which reduces the picture quality of the product and affects the product yield and competitiveness.

[0003] In the related art, in order to prevent light leakage of the LCD panel when pressed by external force, an auxiliary support column is arranged in the non-display area, but such a design is prone to display defects such as yellowing of the display area periphery and gravity. In addition, terminal customers have a slight size differentiation requirement for panels of the same size display screen, such as various frame size requirements such as wide frame, general frame, and narrow frame. How to reduce the problem of yellowing of the display area periphery and meet the requirements of customers for different frame sizes at low cost has become one of the problems to be solved. SUMMARY

[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 the embodiments of the present disclosure, a display panel is provided, comprising a first substrate and a second substrate arranged oppositely, and further comprising a sealant between the first substrate and the second substrate; the display panel comprises a display area inside the sealant, and a non-display area between the display area and the sealant, the non-display area being located at least on one side of the display area.

[0006] The display panel further comprises an auxiliary support column, which is arranged on the surface of the second substrate facing the first substrate and 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 from the sealant towards the display area along the width direction of the non-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 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, the gap between the auxiliary support column close to the sealant and the first substrate is 0- -0.3 μm.

[0009] In some embodiments, the support surface area of the plurality of auxiliary support columns gradually decreases along the width direction of the non-display area and from the sealant towards the display area.

[0010] In some embodiments,

[0011] The support surface shape of the auxiliary support column relatively far from the display area along the width direction of the non-display area comprises a strip shape; and / or,

[0012] The support surface shape of the auxiliary support column close to the display area along the width direction of the non-display area comprises a circular shape or a regular polygon shape.

[0013] In some embodiments,

[0014] The auxiliary support column relatively far from the display area comprises a first auxiliary support column, and the support surface shape of the first auxiliary support column comprises 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 comprises a second auxiliary support column, and the support surface shape of the second auxiliary support column comprises 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 corresponding edge of the display area are uniformly distributed.

[0017] In some embodiments, the auxiliary support column relatively far from the display area along the width direction of the non-display area comprises 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 belt-shaped areas along the width direction, at least one auxiliary support column is arranged in each belt-shaped area along the width direction, and the gap between the auxiliary support column and the first substrate in each belt-shaped area gradually increases from the sealant towards the display area.

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

[0020] In some embodiments,

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

[0022] The second substrate includes a second substrate, and a light-shielding layer on the side of the second substrate facing the first substrate, the light-shielding layer including a black matrix on the display area and a light-shielding part on the non-display area, the thickness of the light-shielding part being less than the thickness of the black matrix; and / or,

[0023] The second substrate includes a second substrate, and a planarization layer on the side of the second substrate facing the first substrate, the planarization layer including a first part on the non-display area and a second part on the display area, the thickness of the first part being less than the thickness of the second part.

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

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

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

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

[0028] In some embodiments, the first substrate includes a first substrate and first metal traces and second metal traces located on a side of the first substrate facing the second substrate, the first metal traces and the second metal traces are both located in a non-display area and are located in different metal layers, the first metal traces include first line segments extending along a third direction, the second metal traces include second line segments extending along a fourth direction, a projection of the auxiliary support pillars relatively far away from the display area on the first substrate overlaps with a projection of the first line segments on the first substrate, the second line segments include transition segments, the transition segments cause the second line segments to avoid the projection of the auxiliary support pillars relatively far away from the display area on the first substrate, a thickness of the first metal traces is greater than a thickness of the second metal traces, and the fourth direction is not parallel to the third direction; and / or,

[0029] The first substrate includes a first substrate and first metal traces and second metal traces located on a side of the first substrate facing the second substrate, the first metal traces and the second metal traces are both located in a non-display area and are located in different metal layers, the first metal traces include third line segments, the second metal traces include fourth line segments, the third line segments and the fourth line segments are connected by vias, a projection of the auxiliary support pillars close to the display area on the first substrate overlaps with a projection of the fourth line segments on the first substrate, the vias avoid the projection of the auxiliary support pillars close to the display area on the first substrate, and a thickness of the first metal traces is greater than a thickness of the second metal traces.

[0030] In some embodiments, a distance between the auxiliary support pillars close to the sealant and the sealant 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 on at least one side of the display area along the first direction.

[0032] In some embodiments, the display device further includes peripheral support pillars located outside the sealant, the peripheral support pillars are arranged on a surface of the second substrate facing the first substrate.

[0033] As a second aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a display device including the display panel in any of the embodiments of the present disclosure.

[0034] The technical scheme of the embodiment of the present disclosure is that the non-display area is provided with auxiliary support columns, 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 from the sealant towards the display area. Therefore, when the plurality of auxiliary support columns 40 are all in the compressed state, the compression amount of the plurality of auxiliary support columns 40 gradually decreases from the sealant towards the display area. Therefore, when the display panel is pressed by an external force, for example, the non-display area is pressed by an external force, the plurality of auxiliary support columns can be in contact with the first substrate to form a laminated support force, thereby reducing the light leakage sensitivity of the display area periphery. When the display panel is pressed by an external force, the plurality of auxiliary support columns are sequentially in contact with the first substrate to form a laminated support from the sealant towards the display area along the width direction of the non-display area. The auxiliary support column relatively far away from the display area is in contact with the first substrate to form a strong support, and the auxiliary support column close to the display area is in contact with the first substrate to form a weak support. Not only is it ensured that the non-display area has sufficient support force, but also the support force of the non-display area gradually increases away from the display area, which is a slow change, so that the cell thickness from the display area to the non-display area is avoided to change suddenly, the cell thickness difference between the display area and the display area periphery is reduced, and the light leakage and yellowing phenomenon of the display area periphery is improved.

[0035] The above summary is intended to illustrate only and is not intended to limit the present disclosure in any way. Further aspects, implementations, and features of the present disclosure will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0036] In the drawings, like reference numerals refer to same or similar components throughout the several views. The drawings are not necessarily to scale. It should be understood that the drawings only depict some embodiments in accordance with the present disclosure and should not be considered limiting.

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

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

[0039] Figure 2B is a simplified schematic diagram of FIG. 2;

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

[0041] Figure 4A shows a gap relationship between the auxiliary support column of the non-display area and the first substrate;

[0042] Figure 4B A third gap relationship between the auxiliary support column of the non-display area and the first substrate is shown;

[0043] Figure 4C A third gap relationship between the auxiliary support column of the non-display area and the first substrate is shown;

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

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

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

[0047] Figure 7 A partial cross-sectional view of a display panel in another embodiment of the present disclosure is shown;

[0048] Figure 8 A partial cross-sectional view of a display panel in yet another embodiment of the present disclosure is shown;

[0049] Figure 9 A partial cross-sectional view of a display panel in still another embodiment of the present disclosure is shown;

[0050] Figure 10 A partial cross-sectional view of a display panel in an embodiment of the present disclosure is shown;

[0051] Figure 11 A top view of a non-display area of a first substrate in an embodiment of the present disclosure is shown;

[0052] Figure 12A A top view of a non-display area of a first substrate in the related art is shown;

[0053] Figure 12B A top view of a non-display area of a first substrate in an embodiment of the present disclosure is shown;

[0054] Figure 13A A top view of a non-display area of a first substrate in the related art is shown;

[0055] Figure 13B A top view of a non-display area of a first substrate in an embodiment of the present disclosure is shown.

[0056] Explanation of Reference Numerals:

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

[0058] 20, second substrate; 21, second base; 22, light shielding layer; 23, color resist layer; 24, planarization layer;

[0059] 30, frame sealant; 40, auxiliary support column; 51, main support column; 52, auxiliary support column; 61, first metal trace; 62, second metal trace. DETAILED DESCRIPTION

[0060] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present disclosure, and different embodiments can be combined arbitrarily without conflict. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0061] Figure 1 Fig. 1 is a top view of a display panel in the related art, Figure 2A Fig. 2 is a cross-sectional view of the display panel shown in Fig. 1, Figure 1 Fig. 3 is a cross-sectional view of the display panel shown in Fig. 1, Figure 2B Fig. 4 is a simplified schematic view of Fig. 2, in which, Figure 2A Fig. 5 shows a partial cross-section of the display panel. As Figure 1 and Figure 2A shown, the display panel includes a first substrate 10 and a second substrate 20 arranged opposite to each other, and a frame sealant 30 located between the first substrate 10 and the second substrate 20. One of the first substrate 10 and the second substrate 20 can be an array substrate, and the other can 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 frame sealant 30, and a non-display area BA located between the display area AA and the frame sealant 30, the non-display area BA being located at least on one side of the display area.

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

[0063] Herein, in the display panel, the part other than the display area AA can be called a bezel area BK, that is, the bezel area BK includes the non-display area BA and the area where the frame sealant 30 is located. The part of the non-display area BA near the display area AA along the corresponding edge of the display area AA can be called a display area periphery.

[0064] As shown in Figure 2, the display panel includes a main support post (Main PS) 51 and a sub-support post (Sub PS) 52, both located in the display area AA. The main support post 51 and the sub-support post 52 can both be disposed on the surface of the second substrate 20 facing the first substrate 10. Normally, when the display panel is not subjected to external force, the main support post 51 abuts against the upper surface of the first substrate 10, and the main support post 51 can have a preset compression amount. There is a gap between the sub-support post 52 and the upper surface of the first substrate 10.

[0065] The display panel also includes auxiliary support pillars 40 located in the non-display area BA. The auxiliary support pillars 40 can be disposed on the surface of the second substrate 20 facing the first substrate 10. When the display panel is not subjected to external pressure, the compression of the auxiliary support pillars 40 on the first substrate 10 is typically 0–0.3 μm. The placement of the auxiliary support pillars 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 the product has evolved, the thickness of the metal traces in the non-display area BA on the first substrate 10 has increased. This results in the film thickness of the auxiliary support pillar 40 in the non-display area BA being larger than the film thickness of the support pillar in the display area AA. Figure 2A As shown, the compression of the auxiliary support column 40 is increased. Furthermore, to accommodate different bezel sizes, the distance between the auxiliary support column 40 and the sealing adhesive 30 in the non-display area BA is relatively large, approximately 2mm to 3mm. When the display panel is subjected to external force, for example, when 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 sink relative to the non-display area BA. This results in a significant difference in thickness ΔCG between the non-display area BA and the display area AA, causing light leakage and yellowing around the display area.

[0067] In this paper, the occupant 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 occupant of the support column is the surface of the occupant that contacts the support surface. In the cross-sectional view of this paper, the surface of the occupant is the upper surface of the occupant.

[0068] It should be noted that in the accompanying drawings, the support columns are drawn according to their natural length (i.e., uncompressed state). When the supporting surface of the support column is lower than the upper surface of the corresponding occupant, it indicates that the support column is in a compressed state within the display panel. For example, Figure 2A In this configuration, the supporting surface of the auxiliary support column 40a is lower than the upper surface of the corresponding occupier, indicating that the auxiliary support column 40a is in a compressed state within the display panel. The distance between the supporting surface of the support column and the surface of the corresponding occupier can represent the amount of compression of the support column. For example, Figure 2AIn d0 in the figure indicates the compression amount of the auxiliary support column 40a. In addition, when not specifically stated, each figure indicates the state of the display panel not pressed by external force.

[0069] In order to solve the light leakage and yellowing problem of the display panel display area periphery, the present disclosure provides a display panel, and the scheme of the present disclosure is described in detail below.

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

[0071] The display panel includes an auxiliary support column 40, which is arranged on the surface of the second substrate 20 facing the first substrate 10 and located in the non-display area BA. A plurality of auxiliary support columns 40 are arranged along the width direction of the non-display area BA (horizontal direction in Figure 3 The plurality of auxiliary support columns 40 are arranged in the width direction of the non-display area BA. The gap between the plurality of auxiliary support columns 40 and the first substrate 10 gradually increases from the frame sealant 30 to the display area AA along the width direction of the non-display area BA. For example, in Figure 3 two auxiliary support columns 40 are arranged along the width direction of the non-display area BA, which are an auxiliary support column 40a close to the frame sealant 30 and an auxiliary support column 40c close to the display area AA, then 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 from the frame sealant 30 to the display area AA.

[0072] In this paper, the width direction of the non-display area can be understood as the 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 the direction perpendicular to the corresponding edge of the display area. For example, in Figure 1 the width direction of the non-display area on the right side of the display area is the direction perpendicular to the right edge of the display area.

[0073] It should be noted that, in this paper, 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, indicating that the support column is in a compressed state in the display panel, and when the gap is less than 0, the greater the absolute value of the gap, the greater the compression of the support column.

[0074] It should be noted that, in the case where no special explanation is made, 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 occupying part 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 for contacting the first substrate 10, and in the cross-sectional view of this paper, the support surface of the support column is the lower surface of the support column; the occupying part 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, and the occupying part surface is the surface of the occupying part that contacts the support surface, and in the cross-sectional view of this paper, the occupying part surface is the upper surface of the occupying part.

[0075] In this disclosure, the gap between the plurality of auxiliary support columns 40 and the first substrate 10 gradually increases along the width direction of the non-display area BA and from the sealant 30 towards the display area AA, which can be understood as that when the auxiliary support columns 40 in the non-display area BA are all in a compressed state, the compression amount of the plurality of auxiliary support columns 40 on the first substrate 10 gradually decreases along the width direction of the non-display area BA and from the sealant 30 towards the display area AA; or, in the non-display area BA, the compression amount of the auxiliary support columns 40 gradually increases in the direction away from the display area AA, and the supporting force of the auxiliary support columns 40 gradually increases.

[0076] In order to more conveniently describe the technical solutions of the present disclosure, the three gap relationships between the auxiliary support columns 40 in the non-display area BA and the first substrate 10 are schematically shown as Figure 4A , Figure 4B and Figure 4C In Figure 4A , Figure 4B and Figure 4C , three auxiliary support columns 40 are arranged along the sealant 30 towards the display area AA, which are auxiliary support column 40a, auxiliary support column 40b and auxiliary support column 40c respectively. The gap between the auxiliary support columns 40a, 40b and 40c and the first substrate 10 gradually increases. In Figure 4A , the gap between the auxiliary support column 40a and the first substrate 10 is less than 0; in Figure 4B , the gap between the auxiliary support column 40a and the first substrate 10 is equal to 0; in 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 the compressed state, the compression amounts of the auxiliary support column 40a, the auxiliary support column 40b and the auxiliary support column 40c on the first substrate 10 gradually decrease.

[0077] Exemplarily, one of the first substrate 10 and the second substrate 20 can be an array substrate, and the other can 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.

[0078] The display panel of the embodiment of the present disclosure is provided with the auxiliary support column 40 in the non-display area BA, a plurality of auxiliary support columns 40 are arranged along the width direction of the non-display area BA, and the gap between the plurality of auxiliary support columns 40 and the first substrate 10 gradually increases from the sealant 30 towards the display area AA. Therefore, from the sealant 30 towards the display area AA, when the plurality of auxiliary support columns 40 are all in the compressed state, the compression amounts of the plurality of auxiliary support columns 40 gradually decrease. 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 be in contact with the first substrate 10 to form a laminated support force, thereby reducing the light leakage sensitivity of the display area periphery. When the display panel is pressed by an external force, the plurality of auxiliary support columns 40 are sequentially in contact with the first substrate 10 from the sealant 30 towards the display area AA in the width direction of the non-display area BA, the auxiliary support column 40 relatively far away from the display area AA is in contact with the first substrate 10 to form a strong support, and the auxiliary support column 40 close to the display area AA is in contact with the first substrate 10 to form a weak support. Not only is it ensured that the non-display area BA has sufficient support force, but also the support force of the non-display area BA gradually increases away from the display area AA, which is a slow change. In this way, the cell thickness from the display area AA to the non-display area BA is avoided to be suddenly changed, the cell thickness difference between the display area AA and the display area periphery is reduced, and the light leakage and yellowing phenomenon of the display area periphery is 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. For example, in the embodiment, the gap between the auxiliary support column 40a 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 sealant 30 and the first substrate 10 is less than 0. Figure 4A 、 Figure 4B and Figure 4CThe gap between the auxiliary support column 40a close to the sealant 30 and the first substrate 10 is respectively shown as less than 0, equal to 0 and greater than 0. When the gap between the auxiliary support column 40a close to the sealant 30 and the first substrate 10 is less than 0, the auxiliary support column 40a can be in contact with the first substrate 10 to form support when the display panel is not pressed by external force, ensuring the uniformity of the cell thickness inside the sealant 30 and reducing the light leakage sensitivity of the display area periphery.

[0080] In one embodiment, the gap between the auxiliary support column 40 close to the display area AA and the first substrate 10 is greater than 0. In this way, the support force of the display area periphery when the non-display area BA is pressed by external force can be reduced, the thickness difference between the display area AA and the display area periphery can be reduced, and the light leakage and yellowing phenomenon of the display area periphery can be further improved.

[0081] In 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 0-0.3 μm, which can be understood as the compression amount between the auxiliary support column 40 close to the sealant 30 and the first substrate 10 being 0-0.3 μm. Exemplarily, the compression amount between the auxiliary support column 40 close to the sealant 30 and the first substrate 10 can be 0-0.25 μm.

[0082] Figure 5A A partial top view of a display panel in an embodiment of the present disclosure is shown, Figure 5A The light shielding layer and the support column are mainly shown. As Figure 5A shown, in the width direction of the non-display area BA and from the sealant 30 to the display area AA (from right to left in Figure 5A , the support surface area of the plurality of auxiliary support columns 40 gradually decreases. For example, in Figure 5A , from the sealant 30 to the display area AA, the plurality of auxiliary support columns 40 are auxiliary support column 40a, auxiliary support column 40b and auxiliary support column 40c in turn, then the support surface area of the auxiliary support column 40a, auxiliary support column 40b and auxiliary support column 40c gradually decreases. In this way, the cell thickness difference between the display area AA and the display area periphery can be further reduced, and the light leakage and yellowing problem of the display area periphery can be better improved.

[0083] It should be noted that in this paper, two or more auxiliary support columns 40 are arranged in 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 plurality of auxiliary support columns 40, the auxiliary support column 40 close to the sealant 30 is the auxiliary support column 40 closest to the sealant 30 among the plurality of 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 some embodiments, the auxiliary support pillars 40 close to the display area AA are auxiliary support pillars 40c, the auxiliary support pillars 40 close to the sealant 30 are auxiliary support pillars 40a, and the auxiliary support pillars 40 relatively far away from the display area AA are auxiliary support pillars 40 (including auxiliary support pillars 40a and auxiliary support pillars 40b) relatively far away from the display area AA with respect to the auxiliary support pillars 40c. Figure 3 In some embodiments, the auxiliary support pillars 40 close to the display area AA are auxiliary support pillars 40c, and the auxiliary support pillars 40 close to the sealant 30 are auxiliary support pillars 40a.

[0084] As shown in FIG. 1, along the width direction of the non-display area BA, the support surface shape of the auxiliary support pillars 40 close to the display area AA can include a circular shape or a regular polygonal shape. Figure 5A As shown in FIG. 1, along the width direction of the non-display area BA, the support surface shape of the auxiliary support pillars 40 close to the display area AA can include a circular shape or a regular polygonal shape. Figure 5A In some embodiments, the support surface shape of the auxiliary support pillars 40a can be a long strip shape, and the support surface shape of the auxiliary support pillars 40b can be a long strip shape.

[0085] As shown in FIG. 1, along the width direction of the non-display area BA, the support surface shape of the auxiliary support pillars 40 close to the display area AA can include a circular shape or a regular polygonal shape. Figure 5A As shown in FIG. 1, along the width direction of the non-display area BA, the support surface shape of the auxiliary support pillars 40 close to the display area AA can include a circular shape or a regular polygonal shape.

[0086] Along the width direction of the non-display area BA, and from the sealant 30 towards the display area AA, the support surface size of the plurality of auxiliary support pillars 40 can gradually decrease. The support surface of the auxiliary support pillars 40 can include a length size and a width size, the length size being greater than or equal to the width size, and the length direction being perpendicular to the width direction. Along the width direction of the non-display area BA, the width size of the support surface of the plurality of auxiliary support pillars 40 can be the same, and from the sealant 30 towards the display area AA, the length size of the plurality of auxiliary support pillars 40 can gradually decrease, so that the support surface area of the plurality of auxiliary support pillars 40 can gradually decrease.

[0087] For example, in some embodiments, the width size of the support surface of the auxiliary support pillars 40a, the auxiliary support pillars 40b and the auxiliary support pillars 40c is the same, and the length size of the support surface of the auxiliary support pillars 40a, the auxiliary support pillars 40b and the auxiliary support pillars 40c gradually decreases. Figure 5A

[0088] It should be noted that herein, the length size and the width size of the support surface of the auxiliary support pillars are relative to the size of the support surface, the length size of the support surface is the length of the support surface, and the width size of the support surface is the width of the support surface.

[0089] In one embodiment, the non-display area BA can be divided into at least two strip-shaped areas along the width direction thereof, and the strip-shaped areas can extend along the outer periphery of the display area AA. At least one auxiliary support pillar 40 is provided in the strip-shaped area along the width direction, for example,​Figure 5A In the embodiment, the non-display area BA is divided into three strip-shaped areas, the first strip-shaped area DA1, the second strip-shaped area DA2 and the third strip-shaped area DA3 in sequence from the sealant 30 toward the display area AA. One auxiliary support column 40a is arranged in the first strip-shaped area DA1, two auxiliary support columns 40b are arranged in the second strip-shaped area DA2 along the width direction, and four auxiliary support columns 40c are arranged in the third strip-shaped area DA3 along the width direction. The gap between the auxiliary support columns 40 and the first substrate 10 gradually increases along the width direction of the non-display area BA and from the sealant 30 toward the display area AA. It can be understood that the gap between the auxiliary support columns 40 and the first substrate 10 gradually increases along the width direction of the non-display area BA and from the sealant 30 toward the display area AA in each strip-shaped area. That is, the gap between the auxiliary support columns 40a, 40b and 40c and the first substrate 10 gradually increases, and the gap between each auxiliary support column 40 and the first substrate 10 in the same strip-shaped area can be equal.

[0090] It should be noted that in this paper, when two or more auxiliary support columns 40 are arranged in a strip-shaped area along the width direction, the comparison of the support surface area and size of the auxiliary support column 40 along the width direction of the non-display area BA is made with respect to each strip-shaped area; the size characteristics of the plurality of auxiliary support columns 40 in the same strip-shaped area can be the same.

[0091] In an embodiment, the auxiliary support column 40 relatively far from the display area AA can include a first auxiliary support column 401. The support surface shape of the first auxiliary support column 401 includes a 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 is the auxiliary support column 40a and the auxiliary support column 40b, and the support surface shape of the auxiliary support column 40a and the auxiliary support column 40b is a strip shape, and the length direction of the support surface is parallel to the width direction of the non-display area BA.

[0092] Figure 5B FIG. 4 is a partial top view of a display panel according to another embodiment of the present disclosure, Figure 5B The light shielding layer and the support column are mainly shown. In an embodiment, the auxiliary support column 40 relatively far from the display area AA includes a second auxiliary support column 402, the support surface shape 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. For example, in the embodiment, Figure 5B In the embodiment, the second auxiliary support column 402 includes the auxiliary support column 40b, the support surface shape of the auxiliary support column 40b is a strip shape, and the length direction of the support surface is perpendicular to the width direction of the non-display area BA. In the embodiment, Figure 5BIn the embodiment, the first auxiliary support column 401 is an auxiliary support column 40a. In another embodiment, the length direction of the support surface of the auxiliary support column 40a and the auxiliary support column 40b can be arranged to be perpendicular to the width direction of the non-display area BA.

[0093] Reference Figure 3 , FIG. 4 and Figure 5A The second substrate 20 can include a second substrate 21, and a first light shielding bar 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 bar 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 orthogonal projection of the auxiliary support column 40 on the second substrate 21 at least partially overlaps the orthogonal projection of the extension of the first light shielding bar 221 in the non-display area BA on the second substrate 21. For example, in Figure 5A or Figure 5B , the first light shielding bar 221 extends to the sealant 30, the part of the first light shielding bar 221 extending in the non-display area BA is the extension, and the orthogonal projection of the auxiliary support column 40 on the second substrate 21 at least partially overlaps the orthogonal projection of the extension of the first light shielding bar 221 in the non-display area BA on the second substrate 21.

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

[0096] Generally, the orthogonal projection of the main support column 51 and the auxiliary support column 52 located in the display area AA on the second substrate 21 is located within the orthogonal projection of the first light shielding bar 221 on the second substrate 21. By arranging the orthogonal projection of the auxiliary support column 40 on the second substrate 21 to at least partially overlap the orthogonal projection of the extension on the second substrate 21, the uniformity of the support column in the extension direction of the first light shielding bar 221 can be ensured. This is conducive to the stability of the liquid crystal cell thickness.

[0097] Exemplarily, the plurality of auxiliary support columns 40 arranged in the extension direction of the corresponding edge of the display area AA are uniformly distributed, thereby ensuring the uniformity of the cell thickness of the non-display area BA in the extension direction of the corresponding edge of the display area AA, and ensuring the uniformity of the display effect of the display area periphery. For example, in Figure 5A and Figure 5BIn the middle, the non-display area BA extends vertically along the left edge of the display area AA, and the non-display area BA extends vertically. Within the non-display area BA, multiple auxiliary support columns, such as multiple auxiliary support columns 40a, are evenly distributed at intervals along the vertical direction; Figure 5A and Figure 5B In the middle, the multiple auxiliary support columns arranged along the extension direction of the left edge of the display area AA can be a row of auxiliary support columns. The auxiliary support columns 40b located in the same row are evenly distributed in the vertical direction, and the auxiliary support columns 40c located in the same row are evenly distributed in the vertical direction.

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

[0099] Figure 6 This is a top view of a display panel according to an embodiment of the present disclosure. In one embodiment, the display area may include a plurality of pixels, the pixels including 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 this context, a pixel comprises three sub-pixels R, G, and B, arranged horizontally, with the first direction being horizontal. The non-display area can be located horizontally on at least one side of the display area. Figure 6 There are two non-display areas, BA1 and BA2, which are located on the left and right sides of the display area, respectively, along the horizontal direction.

[0100] like Figure 6 As shown, the display panel may further include an edge region BC located on at least one side of the display area along a second direction, which is perpendicular to the first direction. For example, Figure 6 The second direction is vertical, and the edge area BC is located above and / or below the display area AA along the vertical direction. Figure 6 The diagram shows a first edge area BC1 located above the display area AA and a second edge area BC2 located below the display area. The edge area BC can be provided with an auxiliary support column 61. The support surface of the auxiliary support column 61 can be elongated or other shapes; no specific limitation is made here. In actual implementation, the structure and size of the auxiliary support column can be set as needed.

[0101] In one embodiment, such asFigure 6 As shown, along the width direction of the non-display area BA, the auxiliary support pillars 40 farther away from the display area AA include auxiliary support walls 403, which are continuously arranged along the extension direction of the edges of the display area AA (i.e., the extension direction of the non-display area BA). This can further ensure the uniformity of the box thickness of the non-display area BA in the extension direction, and ensure the uniformity of the display effect of the display area periphery.

[0102] For example, Figure 5A and Figure 5B In the embodiments of FIGS. 1A and 1B, the auxiliary support pillars 40a can be arranged as auxiliary support walls; and / or, the auxiliary support pillars 40b can be arranged as auxiliary support walls. In specific embodiments, the second auxiliary support pillars 402 can be arranged as auxiliary support walls. The support surface of the auxiliary support wall is in a strip shape, and the second auxiliary support pillars 402 include auxiliary support walls.

[0103] As shown in FIG. 1A, Figure 3 The display panel further includes a plurality of main support pillars 51 and a plurality of auxiliary support pillars 52, which are located in the display area AA and arranged on the surface of the second substrate 20 facing the first substrate 10. The main support pillars 51 abut against the first substrate 10.

[0104] It should be noted that the drawings in the present disclosure schematically show the relative position relationship of each component or film layer, and the size in the drawings does not represent the actual size. For example, Figure 3 The horizontal direction size of the support pillars in FIG. 1A and the horizontal direction size of the color film do not represent the actual size.

[0105] In one embodiment, the second substrate 20 includes a second substrate 21, and an optical shielding layer 22, a color resistance layer 23 and a planarization layer 24 arranged in sequence on the side of the second substrate 21 facing the first substrate 10. It can be understood that the optical shielding layer 22 can be formed first, and then the color resistance layer 23 is formed; or the color resistance layer 23 can be formed first, and then the optical shielding layer 22 is formed.

[0106] For example, as shown in the following Figure 9 The surface of the planarization layer 24 located in the non-display area BA is closer to the second substrate 21 than the surface of the planarization layer 24 located in the display area AA, that is, the planarization layer 24 includes a first part 241 located in the non-display area BA and a second part 242 located in the display area AA, and the distance between the surface of the first part 241 and the second substrate 21 is smaller than the distance between the surface of the second part 242 and the second substrate 21. Thus, the auxiliary support pillars 40 are formed on a lower surface compared with the main support pillars 51 and the auxiliary support pillars 52 of the display area AA, which is beneficial to the preparation of the auxiliary support pillars 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; Figure 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 resist layer 23 on the side of the second substrate 21 facing the first substrate 10. The color resist layer 23 includes a color film layer 231 in the display area AA and a support layer 232 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 conducive to making the distance between the surface of the first part 241 and the second substrate 21 less than the distance between the surface of the second part 242 and the second substrate 21, enabling the auxiliary support column 40 to be formed on a lower surface compared to the main support column 51 and the sub-support column 52 in the display area AA, which is conducive to the preparation of the auxiliary support column 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 in 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 resist layer 23, the color resist 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 on the side of the second substrate 21 facing the first substrate 10. The light-shielding layer 22 includes a black matrix in the display area AA and a light-shielding portion 223 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 conducive to making the distance between the surface of the first part 241 and the second substrate 21 less than the distance between the surface of the second part 242 and the second substrate 21, and further enabling the auxiliary support column 40 to be formed on a lower surface compared to the main support column 51 and the sub-support column 52 in the display area AA, which is conducive to the preparation of the auxiliary support column 40.

[0111] In one embodiment, as Figure 9As shown, the second substrate 20 includes a second substrate 21, and a planar layer 24 located on the side of the second substrate 21 facing the first substrate 10. 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 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 is also 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 lower surface compared to the main support column 51 and the auxiliary support column 52 of the display area AA, which is beneficial to the preparation of the auxiliary support column 40.

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

[0113] In one embodiment, as shown, Figure 3 The distance W between the auxiliary support column 40 close to the sealant 30 and the sealant 30 is 2mm-3mm. Such a setting can meet different bezel requirements of users, for example, when the user needs a smaller bezel, i.e., the bezel area BK is smaller, the sealant 30 can be moved inward by a proper distance, and then cutting along the sealant 30, so that a display panel with a smaller bezel can be obtained while the size of the display area AA remains unchanged, taking into account different bezel requirements.

[0114] Generally, the size of the bezel area BK can be set to 6mm, 5mm or 4.4mm, and by setting the distance W between the auxiliary support column 40 close to the sealant 30 and the sealant 30 to a proper value in 2mm-3mm, different bezel requirements can be met while the size of the display area AA remains unchanged.

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

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

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

[0118] Exemplarily, the length dimension of the auxiliary support column 40 away from the display area AA can be 30μm-1400μm, and the specific value of the length dimension can be set as needed.

[0119] Figure 10 A partial cross-sectional schematic view of a display panel is shown in an embodiment of the present disclosure, as shown in the figure, the first substrate 10 includes a first substrate 11, and a first insulating layer 12 and a second insulating layer 13 located on the side of the first substrate 11 facing the second substrate 20. Figure 10

[0120] Exemplarily, the first insulating layer 12 includes a third part 121 located in the non-display area BA and a fourth part 122 located in the display area AA, and the thickness of the third part 121 is less than that of the fourth part 122. In this way, it is beneficial to reduce the height of the auxiliary support column 40, thereby facilitating the setting of the gap between the auxiliary support column 40 and the occupation part, thereby realizing the technical scheme.

[0121] In another embodiment, the second insulating layer 13 includes a fifth part 131 located in the non-display area BA and a sixth part 132 located in the display area AA, and the thickness of the fifth part 131 is less than that of the sixth part 132. In this way, it is also beneficial to set the gap between the auxiliary support column 40 and the occupation part, thereby realizing the technical scheme.

[0122] In one embodiment, the thickness of the third part 121 can be less than that of the fourth part 122, and the thickness of the fifth part 131 can be less than that of the sixth part 132.

[0123] In order to make the thickness of the third part 121 less than that 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 less than that 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 portion 131 less than the thickness of the sixth portion 132, when the second insulating layer 13 is formed, the non-display area BA can be slightly shielded so that the thickness of the second insulating layer 13 deposited on the non-display area BA is less than the thickness of the second insulating layer 13 deposited on the display area AA; or, when the second insulating layer 13 is prepared, the first insulating layer 12 of the non-display area BA is thinned.

[0125] In one embodiment, the second insulating layer can include an organic resin layer and an inorganic material layer arranged in a stack, and the organic resin layer mainly plays a planarization role. The thickness of the organic resin layer of the non-display area BA can be less than the thickness of the organic resin layer of the display area AA, or the thickness of the organic resin layer of the non-display area BA can be 0. When the organic resin layer is coated, the non-display area BA can be shielded or not coated so that the thickness of the organic resin layer formed on the non-display area BA is less than the thickness of the organic resin layer of the display area AA; or, when the organic resin layer is formed, the organic resin layer of the non-display area BA can 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 away 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 the occupying portion of the auxiliary support column 40 relatively far away from the display area AA.

[0127] The orthographic projection of the auxiliary support column 40 close to the display area AA on the first substrate 11 is located within the orthographic projection of the second structure portion 52 on the first substrate 11, so that the second structure portion 52 is the occupying portion of the auxiliary support column 40 close to the display area AA. The thickness of the first structure portion 51 is greater than the thickness of the second structure portion 52, so that the auxiliary support column 40 relatively far away from the display area AA occupies the surface of the higher first structure portion 51, and the auxiliary support column 40 close to the display area AA occupies the surface of the lower second structure portion 52, which is beneficial to set the gap between the auxiliary support column 40 relatively far away from the display area AA and the first substrate 10 to be less than the gap between the auxiliary support column 40 close to 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 away from the display area AA will first contact the surface of the first structure portion 51 to provide stronger support, and the auxiliary support column 40 close to the display area AA will later contact the surface of the second structure portion 52 to provide weaker support.

[0128] The thickness of the first structure part 51 is greater than the thickness of the second structure part 52, which can realize the technical solution of the present disclosure in the case that the auxiliary support column 40 far away from the display area AA has the same height as the auxiliary support column 40 close to the display area AA, and reduces the difficulty of manufacturing the auxiliary support column 40.

[0129] In one embodiment, the first structure part 51 includes a first metal pattern 141, and the second structure part 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, which is conducive to realizing that the thickness of the first structure part 51 is greater than the thickness of the second structure part 52.

[0130] Figure 11 FIG. 2 shows a top view of the first substrate in the display panel according to an embodiment of the present disclosure, Figure 11 The normal projection of the auxiliary support column 40a far away from the display area AA on the first substrate 11 and the normal projection of the auxiliary support column 40c close to the display area AA on the first substrate 11 are shown in FIG. 2. The first metal pattern 141 includes at least a part of the first metal trace, and the second metal pattern 142 includes at least a part of the second metal trace. The normal projection of the auxiliary support column 40a on the first substrate 11 is located in the first metal pattern 141, that is, the auxiliary support column 40a occupies the first metal trace. The normal projection of the auxiliary support column 40c on the first substrate 11 is located in the second metal pattern 142, that is, the auxiliary support column 40c occupies the second metal trace. The thickness of the first metal trace is greater than the thickness of the second metal trace, so in the cross-sectional view of the auxiliary support column 40a and the auxiliary support column 40c in FIG. 3, Figure 10 In FIG. 3, the auxiliary support column 40a occupies a higher surface relative to the auxiliary support column 40c. When the display panel is pressed by an external force, the auxiliary support column 40a is in contact with the first substrate 10 earlier than the auxiliary support column 40c.

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

[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 disposed in a stack. This makes the thickness of the data line greater than the thickness of the gate line. In this case, the first metal trace can be disposed in the same layer as the data line, and the second metal trace can be disposed in the same layer as the gate line, so that the thickness of the first metal trace is greater than the thickness of the second metal trace.

[0133] In one embodiment, the first substrate includes a first substrate 11 and first and second metal traces on a side of the first substrate 11 facing the second substrate, the first and second metal traces are both in the non-display area and in different metal layers. The first metal trace includes a first segment extending in a third direction, the second metal trace includes a second segment extending in a fourth direction, and the orthographic projection of the auxiliary support post on the first substrate that is relatively far away from the display area and the orthographic projection of the first segment on the first substrate have an overlapping area. The second segment includes a transition segment that causes the second segment to avoid the orthographic projection of the auxiliary support post on the first substrate that is relatively far away from the display area. 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 segment extends in the third direction, which should be understood as the first segment extending generally in the third direction; the second segment extends in the fourth direction, which should be understood as the second segment extending generally in the fourth direction.

[0134] It should be noted that in the first substrate, the non-display area is usually provided with a gate drive circuit (GOA), so the first and second metal traces can be part of the traces in the gate drive circuit.

[0135] Figure 12A FIG. 1 is a top view of a first substrate in the prior art, Figure 12B FIG. 1 is a top view of a first substrate in the prior art, Figure 12A The position F of the auxiliary support post 40a that is relatively far away from the display area AA is shown in FIG. 6, but the area where the position F is located has not only the first segment 61a but also the second segments 62a and 62b. In order to make the auxiliary support post 40a occupy the first metal trace 61 and not occupy the second metal trace 62, a part of the second segment 62b can be moved downward and connected to another part of the second segment 62b through a transition segment 63 that is inclined, as shown in FIG. 7. Figure 12BAs shown, after a portion of the second line segment 62b is moved downwards, it is connected to another portion of the second line segment 62b via an inclined transition section 63. This provides sufficient 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 position F by using the transition section 63, ensuring that the auxiliary support column 40a occupies only the first metal trace 61 (i.e., the first metal pattern 141). For example, the inclination angle between the transition section 63 and the extension direction of the second line segment 62b can be between 0° and 90°, and the specific angle value can be set as needed.

[0136] In other embodiments, the routing of the metal traces can be adjusted so that the auxiliary support pillar 40 near the display area AA occupies only the second metal trace while avoiding the first metal trace. This results in the auxiliary support pillar 40 relatively far from the display area AA occupying a higher (thicker) metal layer, while the auxiliary support pillar 40 near the display area AA occupies a lower (thinner) metal layer. The specific adjustment method of the metal traces can be determined according to the actual wiring situation and is not specifically limited here.

[0137] Figure 13A This is a top view schematic diagram of the non-display area of ​​a first substrate in the related art. Figure 13B This is a top view of the non-display area of ​​the first substrate in one embodiment of this disclosure. Figure 13A The diagram shows a pre-set position G for the auxiliary support pillar 40c near the display area AA; however, the area where position G is located has a first via K1. The first metal trace includes a third segment 61c, and the second metal trace includes a fourth segment 62c. The third segment 61c is connected to the fourth segment 62c through the first via K1. To allow the auxiliary support pillar 40c to occupy the second metal trace 62 without occupying the first metal trace 61, the position of the first via K1 can be adjusted. For example, in... Figure 13B In the middle, the position of the first via K1 is relative to Figure 13A The via K1 is adjusted upwards so that it is closer to the second via K2 and further away from the third via K3. This creates sufficient space between the first via K1 and the third via K3 to accommodate the auxiliary support pillar 40c, which occupies the fourth segment 62c (i.e., the second metal pattern 151) of the second metal trace 62. Consequently, the orthographic projection (40c) of the auxiliary support pillar near the display area on the first substrate overlaps with the orthographic projection of the fourth segment 62c on the first substrate. The first via K1 avoids the orthographic projection (40c) of the auxiliary support pillar near 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.

[0138] It should be noted that, although Figure 11The auxiliary support column 40a is used in FIG. 12, but it does not mean that the auxiliary support column 40a in the sectional view is the same auxiliary support column as the auxiliary support column 40a in the sectional view. The auxiliary support column 40a is used to represent that it is an auxiliary support column far away from the display area or an auxiliary support column close to the sealant. Similarly, the auxiliary support column 40c is used in FIG. 12, but it does not mean that the auxiliary support column 40c in the sectional view is the same auxiliary support column as the auxiliary support column 40c in the sectional view. The auxiliary support column 40c is used to represent that it is an auxiliary support column close to the display area.

[0139] In other embodiments, the via can be adjusted to make the auxiliary support column 40 far away from the display area AA only occupy the first metal trace 61 and avoid the second metal trace 62, so that the auxiliary support column 40 far away 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 lower (thinner) metal layer.

[0140] The specific adjustment mode of the via can be determined according to the actual wiring situation. For example, the position of the via or the number of sub-vias in the via can be adjusted, such as reducing the number of sub-vias in the via from 6 to 5, 4, 3, 2 or 1, 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 far away 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 lower (thinner) metal layer. The specific adjustment mode of the via can be set as needed, which is not limited here.

[0141] By adjusting the metal trace and / or via position of the non-display area BA of the first substrate 10, the auxiliary support column 40 close to the sealant 30 can be arranged on a higher (thicker) metal layer, and the auxiliary support column 40 close to the display area AA can be arranged on a thinner (thinner) 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, the display area periphery will not be too high, the film thickness difference between the display area AA and the display area periphery will be reduced, and the yellowing phenomenon of the display area periphery will be avoided. In addition, when the display panel is pressed by an external force, the auxiliary support column 40 close to the sealant 30 will contact the first substrate 10 first, thereby playing a certain supporting role.

[0142] Exemplarily, as shown in FIG. 12, the auxiliary support column 40 close to the sealant 30 is arranged on the first metal trace 61, and the auxiliary support column 40 close to the display area AA is arranged on the second metal trace 62. Figure 10As shown, the first structure part 51 can include the first insulating layer 12, the first metal pattern 141 and the second insulating layer 13, and the second structure part 52 can include the first insulating layer 12, the second metal pattern 142 and the second insulating layer 13. The first insulating layer 12 can be a part of the first insulating layer 12 located in the non-display area BA, and the second insulating layer 13 can be a part of the second insulating layer 13 located in the non-display area BA. For example, the first insulating layer 12 can be the third part 121, and the second insulating layer 13 can be the fifth part 131.

[0143] The first substrate 10 can further include gate lines and data lines located in the display area AA, the first metal pattern 141 can be disposed in the same layer as the gate lines, and the second metal pattern 142 can be disposed in the same layer as the data lines. Generally, the thickness of the gate lines is greater than the thickness of the data lines. By disposing the first metal pattern 141 in the same layer as the gate lines and disposing the second metal pattern 142 in the same layer as the data lines, it is beneficial to realize that the thickness of the first metal pattern 141 is greater than the thickness of the second metal pattern 142, and it will not affect the process of the first substrate 10.

[0144] In an embodiment, as shown, Figure 10 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 lines or the data lines.

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

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

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

[0148] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0149] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0150] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be direct connection, or indirect connection through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0151] In the present disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "over" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0152] The above disclosure provides many different embodiments or examples for implementing various aspects of the present disclosure. For simplicity of the disclosure, the foregoing description has focused on certain examples and / or on certain aspects of the examples. In the interest of clarity, not all aspects of the examples have been described. Of course, it is contemplated that various aspects and / or examples disclosed herein can be combined in different combinations than the examples described in the foregoing, and that various aspects and / or examples can be implemented independently of each other. For example, the above- described embodiments can be implemented in any of a variety of distributed, networked environments. Furthermore, various aspects and / or examples disclosed herein can be implemented in different types of computer architectures. Accordingly, the disclosure is not to be seen as limited by the foregoing description, and is instead limited only by the scope of the appended claims.

[0153] The above description is only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed by the present disclosure, and different parts in different embodiments can be combined with each other without conflict, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises a first substrate and a second substrate arranged oppositely, and a sealant between the first substrate and the second substrate; the display panel comprises a display area inside the sealant and a non-display area between the display area and the sealant, and the non-display area is located at least on one side of the display area; The display panel further comprises auxiliary support columns arranged on the surface of the second substrate facing the first substrate and 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 from the sealant to the display area.

2. The display panel of claim 1, wherein, The gap between the auxiliary support column close to the sealant and the first substrate along the width direction of the non-display area is less than 0; and / or, the gap between the auxiliary support column close to the display area and the first substrate along the width direction of the non-display area is greater than 0.

3. The display panel of claim 1, wherein, The gap between the auxiliary support column close to the sealant and the first substrate along the width direction of the non-display area is 0-0.3 μm.

4. The display panel of claim 1, wherein, The support surface area of the plurality of auxiliary support columns gradually decreases from the sealant to the display area along the width direction of the non-display area.

5. The display panel of claim 1, wherein, The support surface shape of the auxiliary support column relatively far from the display area along the width direction of the non-display area comprises a strip shape; and / or, The support surface shape of the auxiliary support column close to the display area along the width direction of the non-display area comprises a circular shape or a regular polygon shape.

6. The display panel of claim 1, wherein, The auxiliary support column relatively far from the display area comprises a first auxiliary support column, and the support surface shape of the first auxiliary support column comprises 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 comprises a second auxiliary support column, and the support surface shape of the second auxiliary support column comprises a strip shape, and the length direction of the second auxiliary support column is perpendicular to the width direction of the non-display area. The plurality of auxiliary support columns arranged along the extension direction of the corresponding edge of the display area are uniformly distributed.

7. The display panel of claim 1, wherein, The auxiliary support column relatively far from the display area along the width direction of the non-display area comprises an auxiliary support wall, and the auxiliary support wall is continuously arranged along the extension direction of the corresponding edge of the display area.

8. The display panel of claim 1, wherein, The non-display area is divided into at least two belt-shaped areas along the width direction, and at least one auxiliary support column is arranged in each belt-shaped area, and the gap between the auxiliary support column in each belt-shaped area and the first substrate gradually increases from the sealant to the display area.

9. The display panel of claim 1, wherein, ​ 10. The display panel of claim 1, wherein, The second substrate includes a second substrate, and a first light shielding strip and a light shielding portion located on a side of the second substrate facing the first substrate, the first light shielding strip is located between two adjacent rows of sub-pixels in the display area, the light shielding portion is located in the non-display area, the auxiliary support column is located on a side of the light shielding portion away from the second substrate, and a projection of the auxiliary support column on the second substrate at least partially overlaps with an extension of the first light shielding strip in the non-display area on the second substrate.

11. The display panel of any one of claims 1-10, wherein, The second substrate includes a second substrate, and a color resistance layer located on a side of the second substrate facing the first substrate, the color resistance layer includes a color film layer located in the display area and a support layer located in the non-display area, and a thickness of the support layer is less than a thickness of the color film layer; and / or, The second substrate includes a second substrate, and a light shielding layer located on a side of the second substrate 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 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 planarization layer located on a side of the second substrate facing the first substrate, the planarization layer includes a first portion located in the non-display area and a second portion located in the display area, and a thickness of the first portion is less than a thickness of the second portion.

12. The display panel of any one of claims 1-10, wherein, 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 a thickness of the third portion is less than a 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 a thickness of the fifth portion is less than a thickness of the sixth portion.

13. The display panel of any one of claims 1-10, wherein, 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 the non-display area, a projection of an auxiliary support column relatively far away from the display area on the first substrate is located within a projection of the first structure portion on the first substrate, a projection of an auxiliary support column close to the display area on the first substrate is located within a projection of the second structure portion on the first substrate, and a thickness of the first structure portion is greater than a thickness of the second structure portion.

14. The display panel of claim 13, wherein, 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 of any one of claims 1-10, wherein, 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 located in the non-display area and are located in different metal layers, the first metal trace includes a first line segment extending in a third direction, the second metal trace includes a second line segment extending in a fourth direction, the first line segment and the second line segment have an overlapping area on the first substrate, the second line segment includes a transition segment, the transition segment causes the second line segment to avoid the projection of the auxiliary support column 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 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 located in the non-display area and are located 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 by a via, the fourth line segment and the projection of the auxiliary support column on the first substrate have an overlapping area, the via avoids the projection of the auxiliary support column on the first substrate, and the thickness of the first metal trace is greater than the thickness of the second metal trace.

16. The display panel of claim 1, wherein, The distance between the auxiliary support column near the sealant and the sealant is 2mm-3mm.

17. The display panel of claim 1, wherein, The display area includes a plurality of pixels, the pixels include a plurality of sub-pixels arranged in a first direction, and the non-display area is located on at least one side of the display area in the first direction.

18. The display panel of claim 1, wherein, Further comprising a peripheral support column located outside the sealant, the peripheral support column is arranged on a surface of the second substrate facing the first substrate.

19. A display device comprising: The display panel includes any one of claims 1-18. The display panel includes any one of claims 1-18.

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