Display panel and display terminal
The display panel design with a chamfered support layer addresses stress concentration and cracking issues by eliminating sharp corners, thereby improving the reliability and bending performance of flexible display devices.
Patent Information
- Application Number
- JP2022537792
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-10-20
- Filing Date
- 2021-11-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2041-11-29
AI Technical Summary
Existing flexible display devices face issues with stress concentration and cracking in the support layer due to patterning designs, which reduces the reliability and bending performance of the display panel.
A display panel design featuring a support layer with a pattern portion including concave grooves and chamfered transition portions, which eliminates sharp corners and sides, preventing stress concentration and improving bending performance.
The chamfered transition portions in the support layer effectively eliminate stress concentration, prevent cracks, and enhance the reliability and bending performance of the display panel, especially in display panels with intersecting bent portions.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present application relates to the display field, and in particular to a display panel and a display terminal. [Background technology]
[0002] Flexible displays such as flexible organic light-emitting displays (OLEDs) are widely used in our daily lives. A support layer is usually installed on the back side of the OLED display, and the material of the support layer may be SUS (stainless steel) or other materials. The support layer can not only support the flexible display, but also improve the folding recovery of the flexible display, avoid the occurrence of creases caused by repeated folding of the flexible material, and improve the consumer's experience. However, a support layer that is too thin often has a low experience effect, and a support layer that is too thick cannot be repeatedly folded. Therefore, how to make the metal layer not only have excellent folding resistance but also good supportability has become an issue that manufacturers need to solve urgently. At present, the usual method is to carry out a pattern design on the folding area of the support layer to make the folding area of the support layer hollow or thin, but the stress concentration easily occurs in the pattern, which causes cracks and reduces the reliability of the support layer. Summary of the Invention [Problem to be solved by the invention]
[0003] The embodiments of the present application provide a display panel and a display terminal, which can solve the problem that stress concentration easily occurs in the patterned design of the existing support layer, which causes cracks and reduces the reliability of the support layer. [Means for solving the problem]
[0004] An embodiment of the present application provides a display panel, comprising: a display panel body; and a support layer; the display panel body includes at least one bent portion and a non-bent portion; the support layer is disposed on a rear side of the display panel body, the support layer including a pattern portion corresponding to the bent portion and a flat portion corresponding to the non-bent portion; The pattern portion includes at least one groove, and a transition portion connecting the groove and the flat portion is configured to be chamfered.
[0005] Optionally, in some embodiments of the present application, the transition portion connecting the groove and the flat portion is configured to be a first chamfer, and the shape of the first chamfer is an arc-shaped chamfer or a chamfer composed of multiple line segments.
[0006] Optionally, in some embodiments of the present application, the shape of the first chamfer is a chamfer composed of a plurality of line segments, and two adjacent line segments are smoothly transitionally connected to each other.
[0007] Optionally, in some embodiments of the present application, the bottom of the groove is arc-shaped.
[0008] Optionally, in some embodiments of the present application, the groove includes a bottom and a sidewall connecting between the bottom and the flat portion, and a transition portion connecting the sidewall and the bottom of the groove is configured to be a second chamfer.
[0009] Optionally, in some embodiments of the present disclosure, the groove includes a plurality of side walls, and a transition portion connecting adjacent side walls is configured to define a third chamfer.
[0010] Optionally, in some embodiments of the present application, the bend portion includes a bend axis, the first chamfer includes a first sub-chamfer and a second sub-chamfer, the second sub-chamfer is located on the bend axis, and the radius of the second sub-chamfer is different from the radius of the first sub-chamfer.
[0011] Optionally, in some embodiments herein, the radius of the second sub-chamfer is greater than the radius of the first sub-chamfer.
[0012] Optionally, in some embodiments of the present application, the support layer includes two intersecting grooves, and the edges of the transition area where the two grooves intersect are arc-shaped or in the shape of a number of line segments smoothly transition-connected.
[0013] Optionally, in some embodiments of the present application, the pattern portion is located on a surface of the support layer that is remote from the display panel body.
[0014] Accordingly, an embodiment of the present application provides a display terminal, comprising: a terminal body; and a display panel, wherein the terminal body and the display panel are integrally combined, and the display panel comprises a display panel body and a support layer; the display panel body includes at least one bent portion and a non-bent portion; the support layer is disposed on a rear side of the display panel body, the support layer including a pattern portion corresponding to the bent portion and a flat portion corresponding to the non-bent portion; The pattern portion includes at least one groove, and a transition portion connecting the groove and the flat portion is configured to be chamfered.
[0015] Optionally, in some embodiments of the present application, the transition portion connecting the groove and the flat portion is configured to be a first chamfer, and the shape of the first chamfer is an arc-shaped chamfer or a chamfer composed of multiple line segments.
[0016] Optionally, in some embodiments of the present application, the shape of the first chamfer is a chamfer composed of a plurality of line segments, and two adjacent line segments are smoothly transitionally connected to each other.
[0017] Optionally, in some embodiments of the present application, the bottom of the groove is arc-shaped.
[0018] Optionally, in some embodiments of the present application, the groove includes a bottom and a sidewall connecting between the bottom and the flat portion, and a transition portion connecting the sidewall and the bottom of the groove is configured to be a second chamfer.
[0019] Optionally, in some embodiments of the present disclosure, the groove includes a plurality of side walls, and a transition portion connecting adjacent side walls is configured to define a third chamfer.
[0020] Optionally, in some embodiments of the present application, the bend portion includes a bend axis, the first chamfer includes a first sub-chamfer and a second sub-chamfer, the second sub-chamfer is located on the bend axis, and the radius of the second sub-chamfer is different from the radius of the first sub-chamfer.
[0021] Optionally, in some embodiments herein, the radius of the second sub-chamfer is greater than the radius of the first sub-chamfer.
[0022] Optionally, in some embodiments of the present application, the support layer includes two intersecting grooves, and the edges of the transition area where the two grooves intersect are arc-shaped or in the shape of a number of line segments smoothly transition-connected.
[0023] Optionally, in some embodiments of the present application, the pattern portion is located on a surface of the support layer that is remote from the display panel body. Effect of the Invention
[0024] [Beneficial effects] In the embodiment of the present application, a display panel and a display terminal are provided, and the transition portion connecting the groove and the flat portion is configured as a first chamfer, and / or the transition portion connecting the side wall of the groove and the bottom portion of the groove is configured as a second chamfer, thereby completely eliminating the sharp corners or edges caused by the configuration of the groove, and making each portion transition smoothly, thereby eliminating stress concentration, which is particularly suitable for a display panel having two cross-directional bends, avoiding the occurrence of stress concentration in the pattern of the support layer, preventing the occurrence of cracks, and improving the reliability and bending performance of the display panel.
[0025] In order to more clearly describe the technical means in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. It is obvious that the drawings in the following description are only some embodiments of the present application, and those skilled in the art can further obtain other drawings based on these drawings under the premise that no creative labor is required. [Brief description of the drawings]
[0026] [Figure 1] 1 is a schematic cross-sectional view of a display panel provided by an embodiment of the present application; [Diagram 2] 1 is a top view schematic diagram of a display panel provided by an embodiment of the present application. [Diagram 3] 1 is a first schematic cross-sectional view of a support layer provided by one embodiment of the present application. [Figure 4] FIG. 2 is a second schematic cross-sectional view of a support layer provided by an embodiment of the present application. [Diagram 5] FIG. 2 is a schematic diagram of a circular arc-shaped chamfer provided by an embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of a chamfer formed by multiple line segments provided in one embodiment of the present application. [Figure 7] FIG. 2 is a partial side view of a groove provided by an embodiment of the present application; [Figure 8] FIG. 2 is a schematic plan view of a groove portion provided by an embodiment of the present application; [Figure 9] FIG. 2 is a schematic diagram of a first sub-chamfer and a second sub-chamfer provided by an embodiment of the present application. [Figure 10] FIG. 2 is a schematic top plan view of a groove provided by an embodiment of the present application; [Figure 11] FIG. 1 is a schematic diagram of a display terminal provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] Hereinafter, the technical means in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. It is obvious that the described embodiments are only some of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art under the premise that no creative labor is required, all belong to the scope of protection of the present application. It should also be understood that the specific embodiments described herein are only used to explain and interpret the present application, and are not used to limit the present application. In this application, unless otherwise stated, the directional terms used, such as "up" and "down", generally refer to the up and down under the actual use or operating state of the device, specifically the drawing direction in the drawings, and "inside" and "outside" are relative to the contour of the device.
[0028] An embodiment of the present application provides a display panel, the display panel including a display panel body and a support layer, the display panel body including at least one bent portion, the support layer being disposed on a rear side of the display panel body, the support layer including a pattern portion corresponding to the bent portion, wherein the pattern portion includes a flat portion and at least one groove, and a transition portion connecting the groove and the flat portion is disposed to be chamfered.
[0029] The embodiments of the present application provide a display panel and a display terminal, which will be described in detail below. It is to be noted that the order of description of the embodiments below does not limit the preferred order of the embodiments.
[0030] [Example 1]
[0031] Referring to Figures 1, 2, 3, and 4, Figure 1 is a schematic cross-sectional view of a display panel 100 provided by an embodiment of the present application, Figure 2 is a schematic top view of the display panel 100 provided by an embodiment of the present application, Figure 3 is a first schematic cross-sectional view of a support layer 10 provided by an embodiment of the present application, and Figure 4 is a second schematic cross-sectional view of the support layer 10 provided by an embodiment of the present application.
[0032] An embodiment of the present application provides a display panel 100, which includes a display panel body 20 and a support layer 10, the display panel body 20 includes at least one bent portion FF1 and a non-bent portion CC1, the support layer 10 is disposed on the rear side of the display panel body 20, and the support layer 10 includes a pattern portion FF2 corresponding to the bent portion FF1 and a flat portion 11 corresponding to the non-bent portion CC1. Here, the pattern portion FF2 includes at least one groove 12, and the transition portion connecting the groove 12 and the flat portion 11 is disposed to be chamfered. More specifically, the transition portion connecting the groove 12 and the flat portion 11 is disposed to be a first chamfer 123 (shown as a dashed circle in the drawings).
[0033] Specifically, the display panel 100 includes a display panel body 20 and a support layer 10, the support layer 10 is disposed on the rear side of the display panel body 20, the display panel body 20 may include a positive side for displaying an image for viewing, the reverse side of the positive side is a rear side, and the support layer 10 is disposed on the rear side of the display panel body 20 to provide a supporting effect for the display panel body 20.
[0034] Specifically, the display panel body 20 includes at least one folding portion FF1, i.e., the display panel body 20 may include a non-folding portion CC1 other than the folding portion FF1, or the display panel body 20 may include one or more folding portions FF1, and when the display panel body 20 includes folding portions FF1 in two directions, the two folding directions may intersect, which is not limited here.
[0035] Specifically, in the embodiment of the present application, as shown in Fig. 2, it is considered that the display panel body 20 preferably includes at least two folding portions FF1. The support layer 10 correspondingly includes at least two pattern portions FF2, and the two folding portions FF1 can intersect, for example, the two folding portions FF1 are perpendicular to each other, and the two pattern portions FF2 also intersect, for example, the two pattern portions FF2 are perpendicular to each other.
[0036] In some embodiments, the pattern portion FF2 is located on the surface of the support layer 10 away from the display panel body 20.
[0037] Specifically, the surface of the support layer 10 close to the display panel body 20 is a flat surface, and the surface of the support layer 10 away from the display panel body 20 has a pattern portion FF2. Since the surface of the support layer 10 close to the display panel body 20 is a flat surface, it can provide good support for the display panel body 20, and at the same time, since the surface of the support layer 10 away from the display panel body 20 has the pattern portion FF2, the support layer 10 can be folded more easily, the bending stress can be reduced, and the bending performance can be improved.
[0038] Specifically, in the embodiment of the present application, the support layer 10 is provided with a pattern portion corresponding to the folding portion FF1 of the display panel body 20. The pattern portion includes at least one groove 12, and the transition portion connecting the groove 12 and the flat portion 11 is provided with a first chamfer 123. The provision of the first chamfer 123 can eliminate a sharp corner or edge of the transition portion connecting the groove 12 and the flat portion 11, and prevents the support layer 10 from generating stress concentration at the transition portion connecting the groove 12 and the flat portion 11 during the folding process, thereby preventing the occurrence of cracks and improving the reliability of the support layer 10. In addition, when the support layer 10 includes two or more pattern portions FF2, i.e., when the display panel 100 can be folded in a cross direction, the transition portion connecting the groove 12 and the flat portion 11 is provided with the first chamfer 123 in multiple folding directions, and no stress concentration occurs in any of them, preventing the occurrence of cracks and improving the reliability of the support layer 10. As can be understood, the folding direction refers to a direction perpendicular to the longitudinal direction of the folding portion FF1.
[0039] In some embodiments, as shown in FIG. 3, the bottom 121 of the groove 12 has an arc shape.
[0040] Specifically, the groove 12 includes a bottom 121 and a side wall 122, and the bottom 121 and the side wall 122 of the groove 12 are integrally connected to form an arc shape, for example, a circular arc shape. In this case, the bottom 121 and the side wall 122 of the groove 12 smoothly transition to each other, and there are no sharp corners or edges, which prevents stress concentration, thereby preventing cracks from occurring, and improving the reliability of the support layer 10.
[0041] In some embodiments, as shown in FIG. 4, the groove 12 includes a bottom 121 and a sidewall 122 connecting between the bottom 121 and the flat portion 11, and the transition portion connecting the sidewall 122 and the bottom 121 of the groove 12 is configured to be a second chamfer 124 (shown as a dashed circle in the drawings).
[0042] Specifically, the bottom 121 of the groove 12 may be flat or curved, and the transition portion connecting the bottom 121 and the side wall 122 is set to be a second chamfer 124, so that there are no sharp corners or edges in this portion and stress concentration is prevented, thereby preventing cracks from occurring and improving the reliability of the support layer 10.
[0043] 5 and 6 are enlarged views of the first chamfer 123. Fig. 5 is a schematic diagram of a chamfer in the shape of a circular arc, and Fig. 6 is a schematic diagram of a chamfer composed of a plurality of line segments.
[0044] In some embodiments, the shape of the first chamfer 123 is a circular arc chamfer or a chamfer composed of multiple line segments. There is a smooth transition connection between two adjacent multiple line segments 101.
[0045] Specifically, the first chamfer 123 and / or the second chamfer 124 may be an arc-shaped chamfer or may be a chamfer composed of multiple line segments. When the first chamfer 123 and / or the second chamfer 124 is a chamfer composed of multiple line segments, there is a smooth transition connection between two adjacent multiple line segments 101, and by making the included angle between any two adjacent multiple line segments 101 greater than 90 degrees, there are no sharp corners or sides.
[0046] In the embodiment of the present application, the transition portion connecting the groove 12 and the flat portion 11 is provided with the first chamfer 123. The provision of the first chamfer 123 can eliminate sharp corners or edges at the transition portion connecting the groove 12 and the flat portion 11, and prevent the support layer 10 from generating stress concentration at the transition portion connecting the groove 12 and the flat portion 11, thereby preventing cracks from occurring and improving the reliability of the support layer 10. In addition, when the support layer 10 includes two or more pattern portions FF2, that is, when the display panel 100 can be folded in a cross direction, the transition portion connecting the groove 12 and the flat portion 11 is provided with the first chamfer 123 in multiple directions or in any direction, so that no stress concentration occurs in any of the transition portions, preventing cracks from occurring and improving the reliability of the support layer 10.
[0047] Furthermore, the transition portion connecting the side wall 122 of the groove 12 and the bottom 121 of the groove 12 is a second chamfer 124, which eliminates sharp corners or edges at this portion, thereby preventing stress concentration from occurring at the transition portion connecting the side wall 122 and the bottom 121 and preventing the occurrence of cracks.
[0048] In the embodiment of the present application, the transition portion connecting the groove 12 and the flat portion 11 is configured to be the first chamfer 123, and / or the transition portion connecting the side wall 122 of the groove 12 and the bottom portion 121 of the groove 12 is configured to be the second chamfer 124, thereby completely eliminating the sharp corners or edges caused by the groove, and making each portion transition smoothly, thereby eliminating stress concentration, and being particularly suitable for the display panel 100 having two cross-directional bends, and improving the bending performance of the display panel 100.
[0049] In the embodiment of the present application, the first chamfer 123 is provided at a plurality of transitional portions connecting the groove 12 and the flat portion 11, for example, the first chamfer 123 and / or the second chamfer 124 are provided in a direction perpendicular to the first folding direction and the second folding direction, and the first folding direction and the second folding direction intersect. When the display panel 100 is folded, deformation occurs at the portion perpendicular to the folding direction, and stress concentration easily occurs. However, the configuration of the embodiment of the present application can eliminate the sharp corners or edges in the direction perpendicular to the folding direction caused by the groove, and can smoothly transition each portion, thereby eliminating stress concentration, which is particularly suitable for the display panel 100 having two folding portions in intersecting directions.
[0050] It should be noted that the thickness of the flat portion 11 of the support layer 10 is greater than the thickness of the sidewalls 122 , which in turn are greater than the thickness of the bottom portion 121 .
[0051] It is necessary to explain that the chamfer shape and chamfering degree of the first chamfer 123 and / or the second chamfer 124 may be different within the same groove or between different grooves. For example, the first chamfer 123 is an arc chamfer, and the second chamfer 124 is a chamfer composed of multiple line segments, for example, the shapes of the two opposing first chamfers 123 in the same groove 12 are arc-shaped, and the radii of the arc shapes of the first chamfers 123 are different. In this case, stress concentration can be avoided and cracks can be prevented from occurring.
[0052] Specifically, the display panel body 20 may be the body of an organic light-emitting display panel, for example, the display panel body 20 includes an array substrate, a light-emitting device provided on the array substrate, and a sealing layer provided on the light-emitting device, and the structure of the display panel body 20 is not limited thereto.
[0053] [Example 2]
[0054] This embodiment is the same as or similar to the above embodiment, except that the transition portion connecting the adjacent side walls 122 of the groove 12 is configured to be a third chamfer 125 .
[0055] Referring to FIG. 7, FIG. 7 shows a schematic partial side view of the groove 12.
[0056] Specifically, the groove 12 includes a plurality of side walls 122, and the transition portion connecting the adjacent side walls 122 is the third chamfer 125. The third chamfer 125 may be an arc chamfer or a chamfer composed of a plurality of line segments, which can remove sharp corners or edges between the adjacent side walls 122, prevent stress concentration at the transition portion connecting the adjacent side walls 122, avoid cracks, and improve the reliability of the display panel. In particular, in a display panel 100 having a plurality of bending directions, for example, in a display panel 100 that can be arbitrarily bent, when the display panel is bent, the bending axis corresponds to the transition portion connecting the adjacent side walls 122. At this time, the stress at the transition portion connecting the adjacent side walls 122 is very large, and by setting the transition portion connecting the adjacent side walls 122 to be the third chamfer 125, it is possible to avoid the stress from concentrating at a certain point, thereby avoiding the occurrence of cracks.
[0057] It is necessary to explain that in each embodiment of the present application, the first chamfer 123, the second chamfer 124 and the third chamfer 125 may be an arc chamfer or a chamfer composed of multiple line segments, which can eliminate the sharp corners or edges between the adjacent side walls 122, prevent stress concentration at the transition portion connecting the adjacent side walls 122, and avoid the occurrence of cracks. Therefore, the radius of the first chamfer 123, the second chamfer 124 and the third chamfer 125 is greater than 90 degrees and less than 180 degrees. At the same time, the closer the radius of the first chamfer 123, the second chamfer 124 and the third chamfer 125 is to 180 degrees, the more it can reduce stress concentration and help avoid cracks.
[0058] [Example 3]
[0059] This embodiment is the same as or similar to the above embodiment, with the difference being that the folding portion FF1 includes a folding axis 110, the first chamfer 123 includes a first sub-chamfer 1231 and a second sub-chamfer 1232, the second sub-chamfer 1232 is located on the folding axis 110, and the radius R2 of the second sub-chamfer 1232 is different from the radius R1 of the first sub-chamfer 1231.
[0060] 8 and 9, FIG. 8 is a schematic plan view of the groove 12, and FIG. 9 is a schematic view of the first sub-chamfer 1231 and the second sub-chamfer 1232. As shown in FIG.
[0061] Specifically, the folding axis 110 refers to the long axis direction of the folding portion, and the display panel 100 is folded around the folding axis 110. The second sub-chamfer 1232 being located on the folding axis 110 refers to the side or portion having the second sub-chamfer 1232 forming an included angle of 90 degrees or approximately 90 degrees with the folding axis, and deformation and stress concentration easily occur at the side or portion having the second sub-chamfer 1232 when the display panel 100 or the support layer 10 is folded. The first sub-chamfer 1231 not being located on the folding axis refers to the side or portion having the first sub-chamfer 1231 forming an included angle of 0 degrees or approximately 0 degrees with the folding axis, and deformation and stress concentration do not easily occur at the side or portion having the first sub-chamfer 1231 when the display panel 100 or the support layer 10 is folded. In FIG. 8 , the second sub-chamfer 1232 is located on the folding axis 110, and the side or portion having the second sub-chamfer 1232 forms an angle of 90 degrees with the folding axis 110. In FIG. 8 , the first sub-chamfer 1231 is not located on the folding axis 110, and the side or portion having the first sub-chamfer 1231 forms an angle of 0 degrees with the folding axis 110.
[0062] Specifically, by setting the radius R2 of the second sub-chamfer 1232 different from the radius R1 of the first sub-chamfer 1231, the size of the second sub-chamfer 1232 and the size of the first sub-chamfer 1231 can be adapted to the installation of the bending axis, thereby widening the range of applications of the second sub-chamfer 1232 and the first sub-chamfer 1231.
[0063] Furthermore, the radius R2 of the second sub-chamfer 1232 is greater than the radius R1 of the first sub-chamfer 1231.
[0064] Specifically, since the side or portion having the second sub-chamfer 1232 forms an angle of 90 degrees or about 90 degrees with the bending axis, when the display panel 100 or the support layer 10 is bent, the side or portion having the first sub-chamfer 1231 is the main portion where deformation occurs, and stress concentration occurs easily. The radius R2 of the second sub-chamfer 1232 is larger than the radius R1 of the first sub-chamfer 1231, i.e., by increasing the chamfering degree of the second sub-chamfer 1232, the transition between the side wall 122 of the groove 12 and the flat portion 11 becomes flatter, and the deformation and stress concentration caused by the thickness change can be better eliminated. Therefore, the stress concentration can be better eliminated, thereby preventing the occurrence of cracks and improving the bending performance.
[0065] [Example 4]
[0066] This embodiment is the same as or similar to the above embodiment, except that the supporting layer 10 includes a plurality of grooves 12 in more detail.
[0067] Referring to FIG. 10, FIG. 10 is a schematic plan view of a support layer 10 having a plurality of grooves 12. As shown in FIG.
[0068] In some embodiments, the support layer 10 includes two intersecting grooves 12, and the edges of the transition area where the two grooves 12 intersect are arc-shaped or in the form of multiple line segments smoothly connected by a transition.
[0069] Specifically, the display panel 100 includes two folding portions FF1, each of which includes a folding axis 110. When two grooves 12 intersect, the two folding portions FF1 intersect and the two folding axes 110 intersect.
[0070] Specifically, in a preferred embodiment, if the two grooves 12 are perpendicular to each other, the two bends FF1 are perpendicular to each other, and the two bend axes 110 are perpendicular to each other. In this case, the two intersecting grooves 12 are cross-shaped, and the two bend axes 110 are cross-shaped.
[0071] Specifically, the edge of the connection portion where the two grooves 12 intersect is arc-shaped or has the shape of a plurality of line segments smoothly connected with a transition. That is, the intersection portion 15 in Fig. 10 (shown as a dashed circle in the drawing) is arc-shaped or has the shape of a plurality of line segments smoothly connected with a transition, or the orthogonal projection of the intersection portion 15 on the back surface of the support layer 10 is arc-shaped or has the shape of a plurality of line segments smoothly connected with a transition.
[0072] Specifically, in a display panel 100 having multiple bending directions, for example, in a display panel 100 having two intersecting bending directions (having two intersecting bending axes 110), for example, in a display panel 100 that can be arbitrarily bent, deformation and stress concentration occur at the intersection 15 when the display panel 100 is bent along multiple directions. Although stress concentration easily occurs at this region, if the intersection 15 is in the shape of an arc or a plurality of line segments smoothly transitionally connected, it is possible to eliminate or reduce deformation and stress when the display panel 100 is bent along multiple bending directions, thereby preventing cracks from occurring and improving bending performance.
[0073] [Example 5]
[0074] Please refer to FIG. 11, which is a schematic diagram of a display terminal 200 provided in an embodiment of the present application.
[0075] The embodiment of the present application provides a display terminal 200, which includes a terminal body 201 and the display panel 100 described in any one of the above embodiments, and the terminal body 201 and the display panel 100 are combined together.
[0076] It is important to clarify that the chamfering in the above embodiments refers to rounded chamfering and / or cutting off to form a hypotenuse, for example, a circular arc chamfer or a chamfer consisting of multiple line segments.
[0077] It needs to be explained that the transition portion in the above embodiment refers to a connection portion, ie, the connection portion of two adjacent portions.
[0078] The display panel and display terminal provided by the embodiments of the present application have been introduced in detail above, and the principles and embodiments of the present application have been discussed in this specification by applying specific examples. The description of the above embodiments is only used to facilitate understanding of the method and core idea of the present application. At the same time, those skilled in the art can make any changes in the specific embodiments and application scope according to the idea of the present application, and thus the contents of this specification should not be understood as limitations on the present application. [Explanation of symbols]
[0079] 10 Support layer 11 Flat area 12 Groove 15 Intersection 20 Display panel body 100 Display Panel 101 Line Segments 110 Bending axis 121 Bottom 122 Side wall 200 Display terminal 201 Terminal unit
Claims
1. A display panel including a display panel body and a support layer, The display panel body includes at least one bent portion and a non-bent portion, the support layer is disposed on a rear side of the display panel body, the support layer including a pattern portion corresponding to the bent portion and a flat portion corresponding to the non-bent portion; The pattern portion includes at least one groove, and a transition portion connecting the groove and the flat portion is chamfered; The groove includes a plurality of side walls, and a transition portion connecting adjacent side walls is configured to be a third chamfer; A display panel, wherein the third chamfer is an arc-shaped chamfer that is greater than 90° and smaller than 180°.
2. 2. The display panel of claim 1, wherein a transition portion connecting the groove and the flat portion is configured to form a first chamfer, and the shape of the first chamfer is an arc-shaped chamfer or a chamfer composed of a plurality of line segments.
3. The display panel according to claim 2 , wherein the shape of the first chamfer is a chamfer formed of a plurality of line segments, and two adjacent line segments are smoothly connected to each other through a transition.
4. The display panel according to claim 1 , wherein the bottom of the groove is arc-shaped.
5. 2. The display panel of claim 1, wherein the groove includes a bottom and a sidewall connecting the bottom and the flat portion, and a transition portion connecting the sidewall and the bottom of the groove is configured to be a second chamfer.
6. 3. The display panel of claim 2, wherein the bend portion includes a bend axis, the first chamfer includes a first sub-chamfer and a second sub-chamfer, the second sub-chamfer is located on the bend axis, and a radius of the second sub-chamfer is different from a radius of the first sub-chamfer.
7. The display panel of claim 6 , wherein the radius of the second sub-chamfer is greater than the radius of the first sub-chamfer.
8. The display panel according to claim 1 , wherein the supporting layer includes two intersecting grooves, and an edge of a transition portion where the two grooves intersect is arc-shaped or has a shape of a plurality of line segments smoothly transition-connected.
9. The display panel according to claim 1 , wherein the pattern portion is located on a surface of the support layer that is away from the display panel body.
10. A display terminal comprising a terminal body and a display panel, the terminal body and the display panel being combined together, the display panel being the display panel according to any one of claims 1 to 9.
Citation Information
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