Display panel, display module and display device

Abstract

This invention relates to the field of display devices, specifically providing a display panel, a display module, and a display device, aiming to solve the problem of preventing light leakage around the display panel while preventing static electricity from entering the display area. To this end, the display panel of this invention effectively blocks light that would otherwise leak from the edges of the peripheral area by using a design where the orthographic projection of the second substrate onto the first substrate only covers a portion of that area, allowing the edge of the first substrate to extend beyond the second substrate. Combined with a gradient design where the thinning amount of the first and second edge-grinding areas relative to their respective main areas gradually decreases along the peripheral area towards the display area, this effectively blocks light that would otherwise leak from the edges of the peripheral area. Thus, without relying on a light-shielding layer, it effectively avoids light leakage from the edges of the peripheral area and eliminates the risk of static electricity entering the display area through the light-shielding layer.

Description

Technical Field

[0001] This invention relates to the field of display device technology, and more specifically to a display panel, a display module, and a display device. Background Technology

[0002] As people's demands for the appearance of display devices continue to increase, display devices are gradually developing towards a borderless design. These display devices mostly use backlighting, which can improve the aesthetics of the display device, but also brings about the problem of light leakage around the edges.

[0003] To address light leakage around the perimeter of display devices, a light-shielding layer is typically placed around the display panel to suppress leakage. However, static electricity generated during use can penetrate this layer and enter the display area, affecting the normal electric field and causing image distortion. To address this, a patterned layer consisting of multiple island-like light-shielding blocks is placed around the edge of the perimeter to prevent static electricity from entering the display area. However, light leakage still occurs between adjacent light-shielding blocks in the patterned layer.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] This invention aims to solve the aforementioned technical problem, namely, how to prevent static electricity from entering the display area while avoiding light leakage around the display panel. Based on this, this application provides a display panel, comprising a display area and a peripheral area surrounding the display area; the display panel further comprises: a first substrate and a second substrate, the first substrate and the second substrate being disposed opposite each other, and the orthographic projection of the first substrate onto the second substrate completely covering the second substrate and extending beyond the edge of the second substrate; the side of the first substrate facing away from the second substrate includes a first main body area and a first edge-grinding area surrounding the first main body area, and the side of the second substrate facing away from the first substrate includes a second main body area and a second edge-grinding area surrounding the second main body area; both the first edge-grinding area and the second edge-grinding area are located in the peripheral area; in the thickness direction of the display panel, the thinning amount of the first edge-grinding area relative to the first main body area and the thinning amount of the second edge-grinding area relative to the second main body area both gradually decrease along the direction from the peripheral area towards the display area; The display medium is disposed in the cell space between the first substrate and the second substrate.

[0006] A first substrate and a second substrate are disposed opposite each other, and the orthographic projection of the second substrate onto the first substrate covers a portion of the first substrate; the side of the first substrate facing away from the second substrate includes a first main body area and a first edge-grinding area surrounding the first main body area, and the side of the second substrate facing away from the first substrate includes a second main body area and a second edge-grinding area surrounding the second main body area; both the first edge-grinding area and the second edge-grinding area are located in the peripheral area; in the thickness direction of the display panel, the thinning amount of the first edge-grinding area relative to the first main body area and the thinning amount of the second edge-grinding area relative to the second main body area gradually decrease along the peripheral area towards the display area; a display medium is disposed in the inter-cell space between the first substrate and the second substrate.

[0007] In a preferred embodiment of the display panel, the first edge-grinding area is a first inclined surface or a first arc surface; and / or the second edge-grinding area is a second inclined surface or a second arc surface.

[0008] In a preferred embodiment of the display panel, when the first edge-grinding area is a first arc surface and / or the second edge-grinding area is a second arc surface, the arc surface is an outwardly convex arc surface.

[0009] In a preferred embodiment of the display panel, a plane perpendicular to the thickness direction of the display panel is used as a reference plane. The angle between the first inclined plane and the reference plane in the direction from the display area to the peripheral area is α1. The angle between the tangent plane at the connection between the first arc surface and the first main body area and the reference plane in the direction from the display area to the peripheral area is α2. The angle between the second inclined plane and the reference plane in the direction from the display area to the peripheral area is β1. The angle between the tangent plane at the connection between the second arc surface and the second main body area and the reference plane in the direction from the display area to the peripheral area is β2. Wherein, α1 < β1, α1 < β2, α2 < β1, α2 < β2.

[0010] In the preferred embodiment of the display panel, 10°≤α1≤20°, 10°≤α2≤20°, 50°≤β1≤70°, and 50°≤β2≤70°.

[0011] In a preferred embodiment of the display panel, a plane perpendicular to the thickness direction of the display panel is used as a reference plane. The orthographic projection of the first edge-grinding area on the reference plane in the direction from the display area to the peripheral area has a size of W1, and the orthographic projection of the second edge-grinding area on the reference plane in the direction from the display area to the peripheral area has a size of W2; wherein, W1>W2.

[0012] In a preferred embodiment of the display panel, in the direction from the display area to the peripheral area, the edge of the first substrate extends 50-100 μm beyond the edge of the second substrate.

[0013] In a preferred embodiment of the display panel, the first substrate includes: a substrate, the side of the substrate facing away from the second substrate including a first main body area and a first edge-grinding area; a light filter layer, the light filter layer located in the display area and disposed on the side of the substrate facing the second substrate; a light shielding layer, the light shielding layer located in the peripheral area and disposed on the side of the substrate facing the second substrate, and surrounding the light filter layer; a pattern layer, the pattern layer located in the peripheral area and disposed on the side of the substrate facing the second substrate, and surrounding the light shielding layer; the pattern layer includes a plurality of spaced light shielding blocks; and a planarization layer, the planarization layer disposed on the light filter layer, the light shielding layer, and the pattern layer, and covering the display area and the peripheral area.

[0014] In a preferred embodiment of the display panel, a plane perpendicular to the thickness direction of the display panel is used as a reference plane. The orthographic projection of the first edge-grinding area onto the reference plane in the direction from the display area to the peripheral area has a dimension of W1. The orthographic projection of the pattern layer onto the reference plane in the direction from the display area to the peripheral area has a dimension of W3. The orthographic projection of the peripheral area onto the reference plane in the direction from the display area to the peripheral area has a dimension of W4. Wherein, W3≤W1≤W4.

[0015] This application also provides a display module, the display module comprising: the display panel described in the preferred embodiment above; and a backlight module disposed on the side of the second substrate opposite to the first substrate.

[0016] This application also provides a display device, which includes the display module described in the preferred embodiment above.

[0017] Those skilled in the art will understand that the display panel of this application, by having the orthographic projection of the second substrate onto the first substrate cover only a portion of its area, causing the edge of the first substrate to extend beyond the second substrate, and in conjunction with the gradient design where the thinning amount of the first and second edge grinding areas relative to their respective main areas gradually decreases along the peripheral area towards the display area, can effectively block light that would normally leak from the edge of the peripheral area. Thus, without relying on a light-shielding layer, it can effectively avoid the problem of light leakage at the edge of the peripheral area and eliminate the risk of static electricity entering the display area through the light-shielding layer.

[0018] Furthermore, by setting the edge grinding area as a beveled or curved structure, the light at the edge of the substrate can be effectively constrained and guided, thereby further improving the light leakage prevention effect and light utilization rate.

[0019] Furthermore, by setting the curved surface to an outwardly convex curved surface, the light leakage prevention effect can be further improved, and the problem of local bright spots caused by light convergence can also be avoided.

[0020] Furthermore, by using a plane perpendicular to the thickness direction of the display panel as a reference plane, and setting the angle between the first inclined plane and the reference plane, or the angle between the tangent at the connection between the first arc surface and the first main body area and the reference plane, to be smaller than the angle between the second inclined plane and the reference plane, or the angle between the tangent at the connection between the second arc surface and the second main body area and the reference plane, the first edge grinding area is more gentle than the second edge grinding area. The gentler first edge grinding area can scatter and reflect light, thereby effectively reducing light leakage; the steeper second edge grinding area can block light, reducing light leakage.

[0021] Furthermore, by using a plane perpendicular to the thickness direction of the display panel as a reference plane, and setting the angle between the first inclined plane and the reference plane, or the angle between the cross-section at the connection between the first curved surface and the first main body area and the reference plane, between 10° and 20°, it can be ensured that the edge of the first substrate has sufficient smoothness, maximizing the scattering and reflection guidance of light from the edge of the first substrate, thereby reducing light leakage and improving light utilization. By using a plane perpendicular to the thickness direction of the display panel as a reference plane, and setting the angle between the second inclined plane or the cross-section at the connection between the second curved surface and the second main body area and the reference plane, it can maximize the blocking of light from the edge of the second substrate, thereby reducing light leakage.

[0022] Furthermore, by setting the width of the first edge grinding area to be greater than the width of the second edge grinding area, the first edge grinding area has a longer light constraint path, which can guide more light from the edge of the first substrate to the display area, further improving the light leakage prevention effect of the display surface.

[0023] Furthermore, by setting the edge extension of the first substrate relative to the second substrate within the range of 50-100μm, the problem of increased edge light leakage caused by too small an extension can be avoided, while avoiding the impact of too large an extension on the wiring layout on the first substrate.

[0024] Furthermore, by setting the pattern layer around the light-shielding layer and arranging multiple light-shielding blocks in the pattern layer at intervals, the light-shielding blocks form a mosaic island structure, which can effectively prevent static electricity from entering the display area and avoid static electricity from interfering with the display effect.

[0025] Furthermore, by setting the size of the first edge-grinding area in the direction from the display area to the peripheral area to be greater than or equal to the size of the pattern layer and less than the size of the peripheral area, the orthographic projection of the pattern layer on the substrate can fall completely within the orthographic projection range of the first edge-grinding area. This allows the first edge-grinding area to effectively block light leakage in the blank area between adjacent light-blocking blocks, thereby ensuring the light leakage prevention effect while avoiding electrostatic interference with the display effect.

[0026] Those skilled in the art will understand that the display module of this application, by setting the backlight module on the side of the second substrate away from the first substrate and the orthogonal projection of the second substrate on the first substrate only covering a part of its area, makes the edge of the first substrate extend beyond the second substrate. Combined with the gradient design in which the thinning amount of the first and second edge grinding areas relative to their respective main areas gradually decreases from the peripheral area to the display area, it can effectively block the light that would originally leak out from the edge of the peripheral area. Thus, without relying on the light shielding layer, it can effectively avoid the light leakage problem at the edge of the peripheral area and eliminate the risk of static electricity entering the display area through the light shielding layer. Attached Figure Description

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0028] Figure 1 It is a cross-sectional view of a display panel in the prior art;

[0029] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 This is a cross-sectional view of the display panel of this application;

[0031] Figure 4 yes Figure 3 Section at point B Figure 1 ;

[0032] Figure 5 yes Figure 3 Section at point B Figure 2 ;

[0033] Figure 6 This is a schematic diagram of the first substrate facing the second substrate.

[0034] Explanation of reference numerals in the attached drawings: 100, display panel; 101, display area; 102, peripheral area; 1, first substrate; 11, first main body area; 12, first edge grinding area; 121, first bevel; 122, first arc surface; 13, substrate; 14, light filter layer; 141, light shielding film; 142, light filter film; 15, light shielding layer; 16, pattern layer; 161, light shielding block; 17, planarization layer; 2, second substrate; 21, second main body area; 22, second edge grinding area; 221, second bevel; 222, second arc surface; 3, liquid crystal layer; 4, sealing adhesive. Detailed Implementation

[0035] Preferred embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. For example, although this embodiment is described in conjunction with a liquid crystal display panel, this is not intended to limit the scope of protection of this application. Without departing from the principles of this application, those skilled in the art can apply this application to other display panels with backlight modules.

[0036] It should be noted that in the description of this application, the terms "upper", "lower", "inner", "top", "bottom", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0037] Furthermore, it should be noted that, in the description of this application, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] like Figures 1-2As shown, in the prior art, a liquid crystal display module includes a display panel 100 and a backlight module. The display panel 100 includes a display area 101 and a peripheral area 102 surrounding the display area 101. The display panel 100 also includes a first substrate 1 and a second substrate 2 disposed in a cell, and a liquid crystal layer 3 disposed within the cell space. The backlight module is disposed on the side of the second substrate 2 facing away from the first substrate 1. The first substrate 1 and the second substrate 2 completely overlap in the thickness direction of the display panel 100, and their edges are flush with each other. The first substrate 1 includes a base 13, a light filter layer 14, a light shielding layer 15, and a pattern layer 16. The light filter layer 14 is located in the display area 101 and is disposed on the side of the base 13 facing the second substrate 2. The light shielding layer 15 and the pattern layer 16 are both located in the peripheral area 102 and are both disposed on the side of the base 13 facing the second substrate 2. The light shielding layer 15 is disposed around the light filter layer 14, and the pattern layer 16 is disposed around the light shielding layer 15. The pattern layer 16 includes a plurality of spaced-apart light shielding blocks 161. The above configuration effectively prevents static electricity from entering the display area 101 of the display panel 100 via the light-shielding layer 15 when only the light-shielding layer 15 is provided, thereby preventing static electricity from affecting the display effect of the display module. However, since the light-shielding blocks 161 in the pattern layer 16 have an island structure, light will leak out from the area between adjacent light-shielding blocks 161, causing light leakage problems.

[0039] To address the issue of preventing static electricity from entering the display area 101 while avoiding light leakage around the display panel 100, the display module of this application includes a display panel 100 and a backlight module. The display panel 100 includes a display area 101 and a peripheral area 102 surrounding the display area 101. The display panel 100 also includes a first substrate 1, a second substrate 2, and a display medium. The backlight module is disposed on the side of the second substrate 2 facing away from the first substrate 1. The first substrate 1 and the second substrate 2 are aligned, and the orthographic projection of the second substrate 2 onto the first substrate 1 covers a portion of the first substrate 1. The side of the first substrate 1 facing away from the second substrate 2 includes a first main area 11 and a first edge-grinding area 12 surrounding the first main area 11. The side of the second substrate 2 facing away from the first substrate 1 includes a second main area 21 and a second edge-grinding area 22 surrounding the second main area 21. Both the first edge-grinding area 12 and the second edge-grinding area 22 are located in the peripheral area 102. In the thickness direction of the display panel 100, the thinning amount of the first edge-grinding area 12 relative to the first main body area 11 and the thinning amount of the second edge-grinding area 22 relative to the second main body area 21 both gradually decrease along the peripheral area 102 toward the display area 101. The display medium is disposed in the inter-cell space between the first substrate 1 and the second substrate 2.

[0040] This application effectively blocks light that would otherwise leak from the edge of the peripheral area 102 by using the orthographic projection of the second substrate 2 onto the first substrate 1 to cover only a portion of its area, so that the edge of the first substrate 1 extends beyond the edge of the second substrate 2. Combined with the gradient design in which the thinning amount of the first and second edge grinding areas relative to their respective main areas gradually decreases along the peripheral area 102 toward the display area 101, this effectively avoids the light leakage problem at the edge of the peripheral area 102 and the risk of static electricity entering the display area 101 through the light-shielding layer 15 without relying on the light-shielding layer 15.

[0041] The following reference Figures 3-6 The display module of this application is described below.

[0042] like Figures 3-6 As shown, the display module includes a display panel 100 and a backlight module (not shown). The display panel 100 includes a display area 101 and a peripheral area 102 surrounding the display area 101. The display panel 100 also includes a first substrate 1, a second substrate 2, an adhesive sealant 4, and a display medium. The adhesive sealant 4 is disposed between the first substrate 1 and the second substrate 2, and is located correspondingly in the peripheral area 102. The adhesive sealant 4 enables the first substrate 1 and the second substrate 2 to be aligned, so that the first substrate 1, the second substrate 2, and the adhesive sealant 4 together form a sealed alignment space. The display medium is a liquid crystal layer 3, which fills the alignment space.

[0043] The display medium can be selected according to the product type of the display panel 100 to meet different display needs.

[0044] See next Figures 3-4 The first substrate 1 is a TFT substrate, and in the thickness direction of the display panel 100, the first substrate 1 is disposed away from the backlight module relative to the second substrate 2. The first substrate 1 includes a base 13, a light filter layer 14, a light shielding layer 15, and a pattern layer 16. The base 13 has a first surface and a second surface disposed opposite to each other in the thickness direction of the display panel 100. The first surface is away from the second substrate 2, and the second surface faces the second substrate 2. The first surface includes a first main body region 11 and a first edge grinding region 12. The first edge grinding region 12 is disposed around the first main body region 11 and is located in the peripheral region 102 of the display panel 100. The first edge grinding region 12 is a first inclined surface 121. In the thickness direction of the display panel 100, the thinning amount of the first inclined surface 121 relative to the first main body region 11 gradually decreases in the direction from the peripheral region 102 toward the display region 101, thereby facilitating the scattering and reflection guidance of light from the edge of the first substrate 1 by the first edge grinding region 12, thereby reducing light leakage.

[0045] For example, the configuration of the first grinding area 12 in this application is not fixed, and those skilled in the art can adjust it according to the configuration requirements. For instance, the first grinding area 12 can also be a first arc surface 122, preferably a first convex arc surface, as shown in the following example. Figure 5 As shown. By setting the first arc surface 122 as the first convex arc surface, the light leakage prevention effect can be further improved, and the problem of local bright spots caused by light convergence can also be avoided. When the first edge grinding area 12 is the first convex arc surface, the amount of thinning of the first convex arc surface relative to the first main body area 11 in the thickness direction of the display panel 100 also gradually decreases along the peripheral area 102 towards the display area 101, so as to avoid the light leakage problem at the edge of the peripheral area 102 of the display panel 100.

[0046] See next Figure 4 and 6 The light filter layer 14 is located in the display area 101 of the display panel 100 and is disposed on the second surface of the substrate 13. The light filter layer 14 includes a plurality of light-shielding films 141 and light-filtering films 142 arranged in an array. An opening is formed in the area of ​​the second surface not covered by the light-shielding films 141, and a light-filtering film 142 is disposed on the second surface at the opening. The light-shielding layer 15 and the pattern layer 16 are both located in the peripheral area 102 and are both disposed on the second surface. The light-shielding layer 15 is disposed around the light filter layer 14, and the pattern layer 16 is disposed around the light-shielding layer 15. The pattern layer 16 includes a plurality of light-shielding blocks 161 arranged at intervals, such that each light-shielding block 161 is arranged in an island-like manner in the pattern layer 16. The planarization layer 17 is disposed on the side of the light filter layer 14, the light-shielding layer 15, and the pattern layer 16 facing away from the substrate 13 and covers the entire display area 101 and the peripheral area 102. By adopting the above-mentioned configuration, the optical display performance of the TFT substrate can be fully guaranteed, and the electrostatic conduction path can be blocked by the island-style light-shielding blocks 161, effectively preventing electrostatic discharge from entering the display area 101 and interfering with the normal electric field distribution inside, thus preventing it from affecting the display effect of the display panel 100.

[0047] For example, this application does not limit the specific types of the light-shielding film 141, the light-shielding layer 15, and the light-shielding block 161. For example, the light-shielding film 141 can be a BM light-shielding film 141, and / or the light-shielding layer 15 can be a BM light-shielding layer 15, and / or the light-shielding block 161 can be a BM light-shielding block 161. In addition, this application does not limit the shape of the light-shielding block 161. For example, the shape of the light-shielding block 161 can be rectangular, circular, or other shapes, as long as it can be arranged in an island-like manner in the pattern layer 16.

[0048] See next Figure 3 and 4The second substrate 2 is a CF substrate, and has a third surface and a fourth surface disposed opposite to each other along the thickness direction of the display panel 100. The third surface faces the first substrate 1, and the fourth surface faces away from the first substrate 1. The fourth surface includes a second main body region 21 and a second edge grinding region 22. The second edge grinding region 22 is disposed around the second main body region 21 and is located in the peripheral region 102 of the display panel 100. The second edge grinding region 22 is a second inclined surface 221. In the thickness direction of the display panel 100, the amount of thinning of the second inclined surface 221 relative to the second main body region 21 gradually decreases along the peripheral region 102 toward the display region 101, thereby facilitating the second edge grinding region 22 to block light from the edge of the second substrate 2 and reduce the amount of light leakage.

[0049] For example, the configuration of the second grinding area 22 in this application is not fixed, and those skilled in the art can adjust it according to the configuration requirements. For instance, the second grinding area 22 can also be a second arc surface 222, preferably a second convex arc surface, as shown in the following example. Figure 5 As shown. By setting the second curved surface 222 as a second convex curved surface, the light leakage prevention effect can be further improved, and the problem of local bright spots caused by light convergence can also be avoided. Specifically, when the second edge-grinding area 22 is a second convex curved surface, the thinning amount of the second convex curved surface relative to the second main body area 21 in the thickness direction of the display panel 100 gradually decreases along the direction from the peripheral area 102 to the display area 101, thereby avoiding light leakage at the edge of the peripheral area 102 of the display panel 100. Furthermore, the structural forms of the first edge-grinding area 12 and the second edge-grinding area 22 can be flexibly combined and matched according to product requirements. For example, both the first edge-grinding area 12 and the second edge-grinding area 22 can be convex curved surfaces; or the first edge-grinding area 12 can be a first convex curved surface, and the second edge-grinding area 22 can be a second inclined surface 221; or the first edge-grinding area 12 can be a first inclined surface 121, and the second edge-grinding area 22 can be a second convex curved surface.

[0050] See next Figure 4 Using a plane perpendicular to the thickness direction of the display panel 100 as a reference plane, the angle between the first inclined surface 121 and the reference plane in the direction from the display area 101 to the peripheral area 102 is α1, and the angle between the second inclined surface 221 and the reference plane in the same direction is β1. Where 10°≤α1≤20°, 50°≤β1≤70°. In this configuration, the angle between the first inclined surface 121 and the reference plane is smaller than the angle between the second inclined surface 221 and the reference plane, making the first edge grinding area 12 gentler than the second edge grinding area 22. The gentler first edge grinding area 12 can maximize the scattering and reflection guidance of light from the edge of the first substrate 1, thereby reducing light leakage and improving light utilization. The steeper second edge grinding area 22 can block light from the edge of the second substrate 2 to the greatest extent, thereby reducing light leakage.

[0051] For example, such as Figure 5 As shown, when the first edge-grinding area 12 is a first convex arc surface, taking the plane perpendicular to the thickness direction of the display panel 100 as the reference plane, the angle between the tangent at the connection between the first arc surface 122 and the first main body area 11 and the reference plane in the direction from the display area 101 to the peripheral area 102 is α2, and the value of the angle α2 is also within the range of 10°-20°. When the second edge-grinding area 22 is a second convex arc surface, taking the plane perpendicular to the thickness direction of the display panel 100 as the reference plane, the angle between the tangent at the connection between the second arc surface 222 and the second main body area 21 and the reference plane in the direction from the display area 101 to the peripheral area 102 is β2, and the value of the angle β2 is also within the range of 50°-70°. Furthermore, when both the first edge-grinding area 12 and the second edge-grinding area 22 are convex arc surfaces, 10°≤α2≤20°, 50°≤β2≤70°. When the first grinding area 12 is the first convex arc surface and the second grinding area 22 is the second inclined surface 221, 10°≤α2≤20°, 50°≤β1≤70°; when the first grinding area 12 is the first inclined surface 121 and the second grinding area 22 is the second convex arc surface, 10°≤α1≤20°, 50°≤β2≤70°.

[0052] As another example, in other embodiments, the angle between the first grinding area 12 and the second grinding area 22 and the reference surface in the direction from the display area 101 to the peripheral area 102 can be adaptively adjusted according to actual product requirements, as long as α (α is α1 or α2) < β (β is β1 or β2).

[0053] See next Figure 4 Using a plane perpendicular to the thickness direction of the display panel 100 as a reference plane, the orthographic projection of the first edge-grinding area 12 onto the reference plane in the direction from the display area 101 to the peripheral area 102 has a dimension of W1. The orthographic projection of the second edge-grinding area 22 onto the reference plane in the direction from the display area 101 to the peripheral area 102 has a dimension of W2. Since W1 > W2, the first edge-grinding area 12 has a longer light-constraining path, enabling more light from the edge of the first substrate 1 to be guided to the display area 101, further improving the light leakage prevention effect of the display surface. In the direction from the display area 101 to the peripheral area 102, the edge of the first substrate 1 extends beyond the edge of the second substrate 2 by 50-100 μm, which avoids the problem of increased edge light leakage caused by too small an extension, while preventing the excessive extension from affecting the wiring layout on the first substrate 1.

[0054] Among them, W1 can be in the range of 120μm-200μm, and the first edge grinding area 12 covers the orthographic projection of the second edge grinding area 22 on the second surface.

[0055] It should be noted that, as Figure 5As shown, when both the first edge grinding area 12 and the second edge grinding area 22 are curved surfaces, or when one of the first edge grinding area 12 and the second edge grinding area 22 is a curved surface, it is also necessary to satisfy W1>W2. In the direction from the display area 101 to the peripheral area 102, the edge of the first substrate 1 extends beyond the edge of the second substrate 2 by 50-100μm.

[0056] See next Figure 4 Using a plane perpendicular to the thickness direction of the display panel 100 as a reference plane, the orthographic projection of the pattern layer 16 onto the reference plane in the direction from the display area 101 to the peripheral area 102 has a dimension of W3, and the orthographic projection of the peripheral area 102 onto the reference plane in the direction from the display area 101 to the peripheral area 102 has a dimension of W4. Wherein, W3≤W1≤W4. In the above configuration, by setting the dimension of the first edge-grinding area 12 in the direction from the display area 101 to the peripheral area 102 to be between the dimensions of the pattern layer 16 and the peripheral area 102, the orthographic projection of the pattern layer 16 onto the substrate 13 can completely fall within the orthographic projection range of the first edge-grinding area 12. This allows the first edge-grinding area 12 to effectively block light leakage in the area between adjacent light-shielding blocks 161, thereby ensuring the anti-light leakage effect while avoiding electrostatic interference with the display effect.

[0057] It should be noted that, as Figure 5 As shown, when both the first grinding area 12 and the second grinding area 22 are curved surfaces, W3≤W1≤W4 must also be satisfied.

[0058] In addition, this application also provides a display device, which includes the display module described in any of the above embodiments.

[0059] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0060] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, The display panel (100) includes a display area (101) and a peripheral area (102) surrounding the display area (101); the display panel (100) further includes: A first substrate (1) and a second substrate (2) are disposed opposite each other, and the orthographic projection of the first substrate (1) onto the second substrate (2) completely covers the second substrate (2) and extends beyond the edge of the second substrate (2); the side of the first substrate (1) away from the second substrate (2) includes a first main body area (11) and a first edge grinding area (12) surrounding the first main body area (11), and the side of the second substrate (2) away from the first substrate (1) includes a second main body area (21) and a second edge grinding area (22) surrounding the second main body area (21); the first edge grinding area (12) and the second edge grinding area (22) are both located in the peripheral area (102); in the thickness direction of the display panel (100), the thinning amount of the first edge grinding area (12) relative to the first main body area (11) and the thinning amount of the second edge grinding area (22) relative to the second main body area (21) both gradually decrease along the peripheral area (102) toward the display area (101); The display medium is disposed in the cell space between the first substrate (1) and the second substrate (2).

2. The display panel according to claim 1, characterized in that, The first grinding area (12) is a first inclined surface (121) or a first arc surface (122); and / or The second grinding area (22) is a second inclined surface (221) or a second arc surface (222).

3. The display panel according to claim 2, characterized in that, When the first grinding area (12) is a first arc surface (122) and / or the second grinding area (22) is a second arc surface (222), the arc surface is an outwardly convex arc surface.

4. The display panel according to claim 2, characterized in that, Using a plane perpendicular to the thickness direction of the display panel (100) as a reference plane, the angle between the first inclined plane (121) and the reference plane in the direction from the display area (101) to the peripheral area (102) is α1, the angle between the tangent at the junction of the first arc surface (122) and the first main body area (11) and the reference plane in the direction from the display area (101) to the peripheral area (102) is α2, the angle between the second inclined plane (221) and the reference plane in the direction from the display area (101) to the peripheral area (102) is β1, and the angle between the tangent at the junction of the second arc surface (222) and the second main body area (21) and the reference plane in the direction from the display area (101) to the peripheral area (102) is β2; wherein, α1 < β1, α1 < β2, α2 < β1, α2 < β2.

5. The display panel according to claim 4, characterized in that, 10°≤α1≤20°，10°≤α2≤20°，50°≤β1≤70°，50°≤β2≤70°。 6. The display panel according to claim 1, characterized in that, Using a plane perpendicular to the thickness direction of the display panel (100) as a reference plane, the size of the orthographic projection of the first edge-grinding area (12) on the reference plane in the direction from the display area (101) to the peripheral area (102) is W1, and the size of the orthographic projection of the second edge-grinding area (22) on the reference plane in the direction from the display area (101) to the peripheral area (102) is W2; wherein, W1>W2.

7. The display panel according to claim 1, characterized in that, In the direction from the display area (101) to the peripheral area (102), the edge of the first substrate (1) extends beyond the edge of the second substrate (2) by a dimension in the range of 50-100 μm.

8. The display panel according to claim 1, characterized in that, The first substrate (1) includes: The substrate (13) includes the first main body area (11) and the first edge grinding area (12) on the side opposite to the second substrate (2). A filter layer (14) is located in the display area (101) and is disposed on the side of the substrate (13) facing the second substrate (2); A light-shielding layer (15) is located in the peripheral area (102) and is disposed on the side of the substrate (13) facing the second substrate (2), and is disposed around the filter layer (14); A pattern layer (16) is located in the peripheral area (102) and is disposed on the side of the substrate (13) facing the second substrate (2), and is disposed around the light-shielding layer (15); the pattern layer (16) includes a plurality of spaced light-shielding blocks (161). A planarization layer (17) is disposed on the filter layer (14), the light-shielding layer (15) and the pattern layer (16), and its orthographic projection on the substrate (13) completely covers the display area (101) and the peripheral area (102).

9. The display panel according to claim 8, characterized in that, Using a plane perpendicular to the thickness direction of the display panel (100) as a reference plane, the size of the orthographic projection of the first edge-grinding area (12) on the reference plane in the direction from the display area (101) to the peripheral area (102) is W1, the size of the orthographic projection of the pattern layer (16) on the reference plane in the direction from the display area (101) to the peripheral area (102) is W3, and the size of the orthographic projection of the peripheral area (102) on the reference plane in the direction from the display area (101) to the peripheral area (102) is W4; wherein, W3≤W1≤W4.

10. A display module, characterized in that, The display module includes: The display panel according to any one of claims 1-9; A backlight module is disposed on the side of the second substrate (2) away from the first substrate (1).

11. A display device, characterized in that, The display device includes the display module as described in claim 10.

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