Display panel

By providing an organic cladding layer groove in the non-display area of ​​the display panel and covering the transparent conductive layer, the problem of insufficient adhesion between the transparent conductive layer and the cladding layer is solved, and the reliability of the display panel is improved.

CN116047798BActive Publication Date: 2025-08-19HANNSTAR DISPLAY CORP
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Patent Information

Application Number
CN202111264385.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-28
Publication Date
2025-08-19
Estimated Expiration
2041-10-28

AI Technical Summary

Technical Problem

The adhesion between the transparent conductive layer and the covering layer of the liquid crystal display panel is insufficient, resulting in the substrate being easily peeled when bent or moved by external forces, affecting the reliability of the display panel.

Method used

The grooves of the organic covering layer are provided in the non-display area of ​​the display panel, and the transparent conductive layer covers the groove surface to increase the adhesion of the two, while filling the grooves in the sealing layer to enhance the connection stability between the substrates.

Benefits of technology

The adhesion between the transparent conductive layer and the organic covering layer in the non-display area is improved, the stability of the connection relationship between the sealing layer and the two substrates is enhanced, and the reliability of the display panel is improved.

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Abstract

The present invention provides a display panel, which includes a first substrate, a second substrate, a display medium layer, a pixel element layer, a transparent conductive layer, an organic coating layer and a sealing layer. The first substrate has a display area and a non-display area. The display medium layer is arranged between the first substrate and the second substrate. The pixel element layer is located between the display medium layer and the first substrate. The transparent conductive layer is arranged on the second substrate and extends from the display area to the non-display area. The organic coating layer is arranged between the second substrate and the transparent conductive layer and has a surface facing the transparent conductive layer, a plurality of grooves recessed from the surface, and a groove surface defining these grooves. These grooves are located in the non-display area. The transparent conductive layer covers the surface and the groove surface of the organic coating layer. The sealing layer is arranged between the first substrate and the second substrate and is located in the non-display area. The sealing layer fills these grooves of the organic coating layer and directly contacts the portion of the transparent conductive layer covering the groove surface.
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Description

Technical Field

[0001] The present invention relates to an electronic device, and in particular to a display panel. Background Art

[0002] Generally speaking, the upper and lower substrates of a liquid crystal display panel are connected via a sealing layer (such as a sealant) to form a chamber isolated from the outside world, and the chamber is filled with a liquid crystal layer. Therefore, the adhesion strength between the sealing layer and the upper and lower substrates will determine the sealing degree of the chamber and the stability of the physical properties of the liquid crystal layer located in the chamber. In other words, the adhesion between the sealing layer and the two substrates will have a considerable impact on the reliability of the display panel. For example, if the sealing layer is connected to the coating layer on the substrate via a transparent conductive layer (such as an indium tin oxide film), due to insufficient adhesion between the transparent conductive layer and the coating layer, it is easy to cause the two substrates of the liquid crystal display panel to peel off at the connection surface between the transparent conductive layer and the coating layer when they are bent by external force or move relative to each other. Therefore, under the configuration requirements of these film layers, the above-mentioned problems still need to be solved. Summary of the Invention

[0003] The invention discloses a display panel with better reliability and less chance of peeling in the peripheral area.

[0004] According to an embodiment of the present invention, a display panel includes a first substrate, a second substrate, a display medium layer, a pixel element layer, a transparent conductive layer, an organic coating layer and a sealing layer. The first substrate has a display area and a non-display area outside the display area. The second substrate is arranged opposite to the first substrate. The display medium layer is arranged between the first substrate and the second substrate. The pixel element layer is arranged on the first substrate and is located between the display medium layer and the first substrate. The transparent conductive layer is arranged on the second substrate and extends from the display area to the non-display area. The organic coating layer is arranged between the second substrate and the transparent conductive layer and has a surface facing the transparent conductive layer, a plurality of grooves recessed from the surface, and a groove surface defining these grooves. These grooves are located in the non-display area. The transparent conductive layer covers the surface and the groove surface of the organic coating layer. The sealing layer is arranged between the first substrate and the second substrate and is located in the non-display area. The sealing layer fills these grooves of the organic coating layer and directly contacts the portion of the transparent conductive layer covering the groove surface.

[0005] In the display panel according to the embodiment of the present invention, a minimum depth of the plurality of grooves of the organic coating layer in a direction perpendicular to the first substrate is greater than one third of a maximum thickness of the organic coating layer in the direction.

[0006] In an embodiment according to the present invention, the display panel further includes a light-shielding pattern layer disposed on the second substrate and located between the organic coating layer and the second substrate. A plurality of grooves penetrate the organic coating layer and expose portions of the surface of the light-shielding pattern layer. The transparent conductive layer directly contacts portions of the surface of the light-shielding pattern layer.

[0007] In an embodiment of the present invention, the display panel further includes a colored material layer disposed between the organic coating layer and the second substrate and having an opening overlapping the sealing layer. A plurality of grooves are located in the opening of the colored material layer.

[0008] In the display panel according to the embodiment of the present invention, the average thickness of the organic coating layer is not less than

[0009] In an embodiment of the present invention, the display panel further comprises a plurality of micro-conductors dispersedly disposed in the sealing layer, wherein at least one of the micro-conductors has a width in at least one direction greater than a width of each groove in at least one direction.

[0010] In the display panel according to the embodiment of the present invention, at least one of the plurality of micro-conductors is electrically connected to the transparent conductive layer located at two opposite sides of any one of the plurality of grooves.

[0011] In the display panel according to the embodiment of the present invention, the plurality of grooves in the organic cover layer are connected to each other and surround the display area.

[0012] In the display panel according to the embodiment of the present invention, vertical projections of the plurality of grooves of the organic coating layer on the first substrate extend in a curved manner into the non-display area.

[0013] In the display panel according to an embodiment of the present invention, the plurality of grooves in the organic coating layer include a plurality of first grooves and a plurality of second grooves, wherein a distribution density of vertical projections of the first grooves on the second substrate is different from a distribution density of vertical projections of the second grooves on the second substrate.

[0014] In the display panel according to the embodiment of the present invention, the transparent conductive layer entirely covers the display area and the non-display area.

[0015] In the display panel according to the embodiment of the present invention, vertical projection profiles of the plurality of grooves of the organic coating layer on the first substrate include straight line segments, arc segments, or a combination thereof.

[0016] Based on the above, in a display panel of one embodiment of the present invention, a pixel element layer is provided on the first substrate, an organic coating layer and a transparent conductive layer are provided on the second substrate, and a display medium layer and a sealing layer are provided between the pixel element layer and the transparent conductive layer. The organic coating layer has a plurality of grooves in the non-display area. Portions of the transparent conductive layer in the non-display area extend into these grooves and cover the groove surfaces of these grooves. Accordingly, the adhesion between the transparent conductive layer and the organic coating layer in the non-display area can be increased, thereby improving the stability of the connection (or attachment) relationship between the sealing layer and the two substrates, which helps to increase the reliability of the display panel in subsequent processes or when it is bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic top view of a display panel according to a first embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic cross-sectional view of a display panel;

[0019] Figure 3 is a schematic cross-sectional view of a display panel according to another embodiment of the present invention;

[0020] Figure 4 is a schematic cross-sectional view of a display panel according to a second embodiment of the present invention;

[0021] Figure 5 is a schematic cross-sectional view of a display panel according to a third embodiment of the present invention;

[0022] Figure 6 is a schematic top view of a display panel according to a fourth embodiment of the present invention;

[0023] Figure 7 is a schematic top view of a display panel according to a fifth embodiment of the present invention;

[0024] Figure 8 is a schematic top view of a display panel according to a sixth embodiment of the present invention;

[0025] Figure 9 FIG. 1 is a schematic top view of a display panel according to a seventh embodiment of the present invention.

[0026] Description of Reference Numerals

[0027] 10, 10A, 10B, 10C, 10D, 10E, 10F, 10G: display panel;

[0028] 101: first substrate;

[0029] 102: second substrate;

[0030] 110: pixel component layer;

[0031] 120, 120A, 120B, 120C, 120D, 120E, 120F, 120G: organic coating layer;

[0032] 120r, 120r-A, 120r-B, 120r-D, 120r-E, 120r-F, 121r, 122r, 123r, 124r: groove;

[0033] 120rs: groove surface;

[0034] 120s, BMs: surface;

[0035] 130, 130B: transparent conductive layer;

[0036] 150: colored material layer;

[0037] 150OP, BMa: Opening;

[0038] 170: micro conductor;

[0039] 200, 200B, 200E: sealing layer;

[0040] 300: display medium layer;

[0041] A1, A2, A3, A4: Area

[0042] BM: light-shielding pattern layer;

[0043] d: depth;

[0044] DA: display area;

[0045] NDA: non-display area;

[0046] T: thickness;

[0047] W1, W2: width;

[0048] X, Y, Z: direction

[0049] A-A': section line. DETAILED DESCRIPTION

[0050] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0051] Figure 1 FIG. 1 is a schematic top view of a display panel according to a first embodiment of the present invention. Figure 2 yes Figure 1 Schematic cross-sectional view of a display panel. Figure 3FIG is a cross-sectional view of a display panel according to another embodiment of the present invention. In particular, Figure 2 Corresponding to Figure 1 For the sake of clarity of presentation and explanation, Figure 1 Only shown Figure 2 The first substrate 101, the second substrate 102, the organic cover layer 120, the transparent conductive layer 130, the light shielding pattern layer BM and the sealing layer 200 are shown.

[0052] Please refer to Figure 1 and Figure 2 The display panel 10 includes a first substrate 101, a second substrate 102, a pixel element layer 110, an organic cover layer 120, a transparent conductive layer 130, a light-shielding pattern layer BM, a sealing layer 200, and a display medium layer 300. The first substrate 101 has a display area DA and a non-display area NDA (or peripheral area) outside the display area DA. The second substrate 102 is disposed opposite to the first substrate 101. The materials of the first substrate 101 and the second substrate 102 may include glass, quartz, polymer, or other suitable rigid substrate materials or flexible substrate materials.

[0053] The pixel element layer 110 is disposed on the first substrate 101. The transparent conductive layer 130 is disposed on the second substrate 102 and is opposite to the pixel element layer 110 on the first substrate 101. The display medium layer 300 is disposed between the pixel element layer 110 and the transparent conductive layer 130 (or, alternatively, between the first substrate 101 and the second substrate 102). In this embodiment, the display medium layer 300 is, for example, a liquid crystal layer and may include a plurality of liquid crystal molecules, but is not limited thereto. The pixel element layer 110 may include a plurality of scan lines (not shown), a plurality of data lines (not shown), and a plurality of pixel structures. These scan lines and data lines intersect with each other and define a plurality of pixel regions of the display panel 10. These pixel structures are located within these pixel regions and each have an active element (not shown) and a pixel electrode (not shown) electrically connected to each other. The active element is electrically connected to the pixel electrode, a corresponding scan line, and a corresponding data line. These active elements can be independently controlled via a corresponding scan line and a corresponding data line, respectively, so that their corresponding pixel electrodes have the same or different potentials. When the pixel electrode and the transparent conductive layer 130 are enabled to have a potential difference, the electric field formed between the pixel electrode and the transparent conductive layer 130 can drive the multiple liquid crystal molecules in the display medium layer 300 to rotate, thereby modulating the polarization state of the polarized light incident on the display medium layer 300. The display effect is achieved by changing the light intensity of the polarized light after passing through the display panel 10.

[0054] In this embodiment, an organic coating layer 120 and a light-shielding pattern layer BM are further provided on the second substrate 102. The organic coating layer 120 is located between the second substrate 102 and the transparent conductive layer 130. The light-shielding pattern layer BM is located between the organic coating layer 120 and the second substrate 102. It is worth mentioning that this light-shielding pattern layer BM surrounds an opening BMa, and this opening BMa can define the display area DA of the display panel 10. In other words, the light-shielding pattern layer BM is projected along a direction perpendicular to the first substrate 101 (for example, direction Z) and overlaps the non-display area NDA of the display panel 10. The material of the organic coating layer 120, for example, includes an average thickness of not less than The organic overcoat layer 120 is primarily intended to provide improved planarization and superior optical performance, and therefore must have a certain thickness to achieve these goals. The light-shielding pattern layer BM may be made of, for example, black photoresist or other materials suitable for blocking light (e.g., low-reflective metal, blackened metal, black resin, or black ink).

[0055] Of particular note is the presence of a sealing layer 200 between the pixel element layer 110 and the transparent conductive layer 130. This sealing layer 200 is located within the non-display area (NDA) (i.e., the peripheral area) of the first substrate 101 and surrounds the display medium layer 300. More specifically, the pixel element layer 110 on the first substrate 101 and the transparent conductive layer 130 on the second substrate 102 form a sealed chamber via this sealing layer 200, and this sealed chamber is filled with the display medium layer 300. It should be understood that the vertical projections of the sealing layer 200 and the light-shielding pattern layer BM on the first substrate 101 may overlap to enhance their concealment. In this embodiment, the sealing layer 200 is made of, for example, acrylic resin, epoxy resin, photosensitive polymer material, or other suitable sealing materials.

[0056] In this embodiment, the transparent conductive layer 130 entirely covers the organic coating layer 120 of the display panel 10 and extends from the display area DA to the non-display area NDA. In this embodiment, the transparent conductive layer 130 is made of, for example, indium tin oxide, indium zinc oxide, aluminum-doped zinc oxide, fluorine-doped tin oxide, gallium-doped zinc oxide, or other suitable transparent metal oxides. Of particular note, the organic coating layer 120 has a surface 120s facing the transparent conductive layer 130, a plurality of recesses 120r located within the non-display area NDA and recessed from the surface 120s, and recess surfaces 120rs defining these recesses 120r. The transparent conductive layer 130 covers the surface 120s of the organic coating layer 120 and the recess surfaces 120rs of the recesses 120r. This increases the connection area between the transparent conductive layer 130 and the organic coating layer 120 within the non-display area NDA, thereby improving the adhesion between the organic coating layer 120 and the transparent conductive layer 130.

[0057] In other words, the connection surface between the organic overcoat layer 120 and the transparent conductive layer 130 within the non-display area NDA is less susceptible to peeling due to external forces. Because the sealing layer 200 fills the grooves 120r of the organic overcoat layer 120 and directly contacts the portion of the transparent conductive layer 130 covering the groove surfaces 120rs, the stability of the connection between the sealing layer 200 and the two substrates is improved, thereby increasing the reliability of the display panel 10 during subsequent manufacturing processes or when it is bent.

[0058] In this embodiment, the grooves 120r of the organic coating layer 120 are dispersedly disposed in the non-display area NDA around the display area DA (eg, Figure 1 As shown). For example: these grooves 120r can be arranged in multiple rows and columns at equal intervals along a direction parallel to the first substrate 101 (such as direction X or direction Y). However, the present invention is not limited to this. In other embodiments, under reasonable width conditions, these grooves 120r can also be arranged in multiple rows and columns with unequal intervals. According to other embodiments, these grooves 120r of the organic coating layer 120 can also be arranged only on one side, both sides or more than two sides of the display area DA, depending on the product design (such as peripheral design) or application requirements (such as bending method or appearance shape) of the display panel. That is, these grooves 120r of the organic coating layer 120 are separated from each other and are arranged on at least one side of the display area DA.

[0059] On the other hand, in this embodiment, the vertical projection profile of the grooves 120r on the first substrate 101 is, for example, a rectangle. In other words, the vertical projection profile of the grooves 120r here includes multiple straight line segments, but is not limited to this. In other embodiments, the vertical projection profile of the grooves 120r of the organic coating layer 120 on the first substrate 101 can also be adjusted to a circular, elliptical, polygonal, or other suitable shape (e.g., a combination of at least one straight line segment and at least one arc segment) according to the design of the surrounding structure and the sealing layer 200.

[0060] In this embodiment, the grooves 120r of the organic coating layer 120 may expose a portion of the surface BMs of the light shielding pattern layer BM. That is, the grooves 120r may penetrate the organic coating layer 120, and the portion of the transparent conductive layer 130 located in the grooves 120r may directly contact the light shielding pattern layer BM. However, the present invention is not limited thereto. Figure 3 In other embodiments, the multiple grooves 120r-A of the display panel 10A do not penetrate the organic coating layer 120A. Of particular note, the minimum depth (e.g., depth d) of these grooves 120r-A in a direction perpendicular to the first substrate 101 (e.g., direction Z) is greater than one-third of the maximum thickness (e.g., thickness T) of the organic coating layer 120A in that direction. This ensures sufficient adhesion between the organic coating layer 120A and the transparent conductive layer 130, maintaining the stability of the connection between the sealing layer 200 and the two substrates.

[0061] Some other embodiments will be listed below to illustrate the present disclosure in detail, wherein the same components will be marked with the same symbols, and the description of the same technical content will be omitted. For the omitted parts, please refer to the aforementioned embodiments and will not be repeated below.

[0062] Figure 4 FIG is a cross-sectional view of a display panel according to a second embodiment of the present invention. Figure 4 The display panel 10B of this embodiment is Figure 2 The display panel 10 differs from the display panel 10B in that a colored material layer 150 is optionally disposed on the second substrate 102 of the display panel 10B. The colored material layer 150 is located between the organic overcoat layer 120B and the second substrate 102, and overlaps with the sealing layer 200B in a direction perpendicular to the first substrate 101 (e.g., direction Z). In this embodiment, the colored material layer 150 has an opening 150OP located in the non-display area NDA. The organic overcoat layer 120B and the transparent conductive layer 130B are in contact with the light-shielding pattern layer BM through this opening 150OP.

[0063] Since the colored material layer 150 is generally thick, the portion of the organic overcoat layer 120B that fills the opening 150OP further increases the contact area between the transparent conductive layer 130B and the recessed surface 120rs of the recess 120r-B, thereby enhancing the adhesion between the transparent conductive layer 130B and the organic overcoat layer 120B within the non-display area NDA. Furthermore, since the colored material layer 150 generally has moderate adhesiveness, contact with the organic overcoat layer 120B and extending from the display area DA to the overlapping area between the light-shielding pattern layer BM and the sealing layer 200B can help moderately reduce peeling in the non-display area NDA caused by external forces.

[0064] Figure 5 FIG is a cross-sectional view of a display panel according to a third embodiment of the present invention. Figure 5 The display panel 10C of this embodiment is Figure 2 The difference between the display panel 10 and the display panel 10C is that the display panel 10C further optionally includes a plurality of micro-conductors 170 dispersedly disposed in the sealing layer 200. The micro-conductors 170 are, for example, metal particles, and the material thereof includes gold or silver.

[0065] Of particular note, at least a portion of these microconductors 170 has a width along a direction greater than the width of the groove 120r of the organic coating layer 120 along that direction. For example, in this embodiment, the microconductors 170 and the groove 120r have widths W1 and W2, respectively, along a direction parallel to the first substrate 101 (e.g., direction X), and the width W1 of the microconductors 170 is greater than the width W2 of the groove 120r. Therefore, the microconductors 170 can electrically connect two portions of the transparent conductive layer 130 located on opposite sides of the groove 120r, thereby preventing the transparent conductive layer 130 from breaking within the groove 120r of the organic coating layer 120, thereby preventing poor conductivity.

[0066] Figure 6 FIG is a top view of a display panel according to a fourth embodiment of the present invention. Figure 6 The display panel 10D of this embodiment is Figure 1 The difference between the display panel 10 and the display panel 10D lies in the different groove configuration of the organic coating layer. In this embodiment, the multiple grooves 120r-D of the organic coating layer 120D of the display panel 10D are interconnected and surround the display area DA. This further increases the contact area between the transparent conductive layer 130 and the organic coating layer 120D in the non-display area NDA, thereby enhancing the adhesion between the transparent conductive layer 130 and the organic coating layer 120D in the non-display area NDA. Furthermore, this improves the stability of the connection (or adhesion) between the sealing layer 200 and the two substrates, helping to increase the reliability of the display panel 10D during subsequent manufacturing processes or when it is bent.

[0067] Figure 7 FIG is a top view of a display panel according to a fifth embodiment of the present invention. Figure 7 The display panel 10E of this embodiment is Figure 6 The display panel 10D differs from the display panel 10E in that the groove 120r-E of the organic overcoat layer 120E in the display panel 10E, with its vertical projection on the first substrate 101, extends in a curved manner into the non-display area NDA. This further increases the contact area between the transparent conductive layer 130 and the organic overcoat layer 120E in the non-display area NDA, thereby enhancing the adhesion between the transparent conductive layer 130 and the organic overcoat layer 120E in the non-display area NDA. Furthermore, this improves the stability of the connection (or adhesion) between the sealing layer 200E and the two substrates, helping to increase the reliability of the display panel 10E during subsequent manufacturing processes or when bent.

[0068] Figure 8 FIG. 4 is a schematic top view of a display panel according to a sixth embodiment of the present invention. Figure 9 FIG is a top view of a display panel according to a seventh embodiment of the present invention. Figure 8 The display panel 10F of this embodiment is Figure 1 The display panel 10 differs from the display panel 10F in that the groove profile of the organic coating layer is different. Specifically, the vertical projection profile of each of the multiple grooves 120r-F in the organic coating layer 120F of the display panel 10F on the first substrate 101 is circular or elliptical, and these grooves 120r-F are distributed in a zigzag pattern within the non-display area NDA. In this embodiment, the distribution density of these grooves 120r-F within the non-display area NDA is uniform.

[0069] However, the present invention is not limited thereto. In other embodiments, the distribution density of the plurality of grooves of the organic coating layer 120G of the display panel 10G in the non-display area NDA may also be different, such as Figure 9For example, the non-display area NDA of the display panel 10G can be divided into a first area A1 and a second area A2 along a direction Y parallel to the first substrate 101, and can be divided into a third area A3 and a fourth area A4 along a direction X parallel to the first substrate 101. The organic cover layer 120G has a plurality of first grooves 121r located in the first area A1, a plurality of second grooves 122r located in the second area A2, a plurality of third grooves 123r located in the third area A3, and a plurality of fourth grooves 124r located in the fourth area A4. It is particularly noteworthy that the vertical projection areas and profiles of the first groove 121r, the second groove 122r, the third groove 123r and the fourth groove 124r on the second substrate 102 are substantially the same, but the distribution density of the vertical projection of the first groove 121r on the second substrate 102 is different from the distribution density of the vertical projection of the second groove 122r on the second substrate 102, and the distribution density of the vertical projection of the third groove 123r on the second substrate 102 is different from the distribution density of the vertical projection of the fourth groove 124r on the second substrate 102.

[0070] By varying the density of these grooves, the stability of the connection between the two substrates and the sealing layer 200 can be improved to varying degrees in different areas. For example, the density of the grooves near the corners of the display panel 10G (i.e., the second groove 122r and the fourth groove 124r) can be greater than the density of the grooves farther from the corners of the display panel 10G (i.e., the first groove 121r and the third groove 123r). This is because areas near corners are subject to stress from both sides, resulting in a higher probability of peeling than areas farther from the corners.

[0071] In a display panel according to one embodiment of the present invention, a pixel element layer is provided on a first substrate, an organic coating layer and a transparent conductive layer are provided on a second substrate, and a display medium layer and a sealing layer are provided between the pixel element layer and the transparent conductive layer. The organic coating layer has a plurality of grooves in a non-display area. Portions of the transparent conductive layer in the non-display area extend into these grooves and cover the groove surfaces of these grooves. Accordingly, the adhesion between the transparent conductive layer and the organic coating layer in the non-display area can be increased, thereby improving the stability of the connection (or attachment) relationship between the sealing layer and the two substrates, and helping to increase the reliability of the display panel in subsequent processes or when it is bent.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: include: A first substrate having a display area and a non-display area outside the display area; a second substrate, disposed opposite to the first substrate; A display medium layer is provided between the first substrate and the second substrate; a pixel element layer, disposed on the first substrate and located between the display medium layer and the first substrate; a transparent conductive layer, disposed on the second substrate and extending from the display area to the non-display area; an organic covering layer disposed between the second substrate and the transparent conductive layer, and having a surface facing the transparent conductive layer, a plurality of grooves recessed from the surface, and groove surfaces defining the plurality of grooves, wherein the plurality of grooves are located within the non-display area, the transparent conductive layer covers the surface and the groove surfaces of the organic covering layer, the plurality of grooves of the organic covering layer include a plurality of first grooves and a plurality of second grooves, and a distribution density of vertical projections of the plurality of first grooves on the second substrate is different from a distribution density of vertical projections of the plurality of second grooves on the second substrate; and The sealing layer is disposed between the first substrate and the second substrate and located in the non-display area. The sealing layer fills the plurality of grooves of the organic coating layer and directly contacts the transparent conductive layer covering the surface of the grooves.

2. The display panel according to claim 1, wherein: A minimum depth of the plurality of grooves of the organic coating layer in a direction perpendicular to the first substrate is greater than one third of a maximum thickness of the organic coating layer in the direction.

3. The display panel according to claim 1, wherein: Also includes: The light-shielding pattern layer is arranged on the second substrate and is located between the organic coating layer and the second substrate, wherein the multiple grooves penetrate the organic coating layer and expose a portion of the surface of the light-shielding pattern layer, and the transparent conductive layer directly contacts the portion of the surface of the light-shielding pattern layer.

4. The display panel according to claim 1, wherein: Also includes: The colored material layer is disposed between the organic coating layer and the second substrate and has an opening overlapping the sealing layer, wherein the plurality of grooves are located in the opening of the colored material layer.

5. The display panel according to claim 1, wherein: The average thickness of the organic coating layer is not less than 6. The display panel according to claim 1, wherein: Also includes: A plurality of micro-conductors are dispersedly disposed in the sealing layer, and a width of at least one of the plurality of micro-conductors in at least one direction is greater than a width of each of the plurality of grooves in the at least one direction.

7. The display panel according to claim 6, wherein: At least one of the plurality of micro-conductors is electrically connected to the transparent conductive layer and is located at two opposite sides of any one of the plurality of grooves.

8. The display panel according to claim 1, wherein: The plurality of grooves of the organic coating layer are connected to each other and surround the display area.

9. The display panel according to claim 1, wherein: The vertical projections of the plurality of grooves of the organic coating layer on the first substrate extend in a bent manner within the non-display area.

10. The display panel according to claim 1, wherein The transparent conductive layer entirely covers the display area and the non-display area.

11. The display panel according to claim 1, wherein A vertical projection profile of the grooves of the organic coating layer on the first substrate includes a straight line segment, an arc segment, or a combination thereof.

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