Display device

Abstract

Embodiments of the present application provide a display device. The display device comprises a housing, a support, a display panel and a cover plate. The display panel comprises an array substrate, a light emitting device layer and an optical adhesive layer stacked along a first direction. The optical adhesive layer is located on a side of the light emitting device layer away from the array substrate. The support and the display panel are both located in a cavity. The support comprises a first flat portion and a first bending portion surrounding the first flat portion. The first bending portion comprises a first bending angle. A first slot is provided at the first bending angle. The optical adhesive layer comprises a second flat portion and a second bending portion connected to an outer circumferential side of the second flat portion. A second slot is provided at a second bending angle of the second bending portion. The second slot is misaligned with the first slot in the orthographic projection of the support. This enables the part of the display panel excluding the optical adhesive layer to release stress more evenly at the first slot and the second slot, further reducing the overall wrinkle degree of the display panel, which helps to improve the display failure problem of the display device.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display device. Background Technology

[0002] Organic light-emitting diode (OLED) and flat panel display devices based on light-emitting diode (LED) technologies are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

[0003] In related technologies, OLED screens are attached to a cover plate that is curved on all four sides to achieve a fully curved display. However, during the bonding process, the four corners of the screen are easily squeezed by the curved surface of the cover plate, causing wrinkles in the screen and resulting in poor display quality. Summary of the Invention

[0004] This application provides a display device that aims to improve the problem of poor display caused by the screen being squeezed by the cover plate at the four corners.

[0005] An embodiment of the first aspect of this application provides a display device, comprising: a housing including a wall panel and a cavity enclosed by the wall panel with an opening in a first direction; a support member located within the cavity and connected to the housing; a display panel including an array substrate, a light-emitting device layer, and an optical adhesive layer stacked along the first direction, the array substrate being located between the display panel and the support member, and the optical adhesive layer being located on the side of the light-emitting device layer facing away from the array substrate; and a cover plate disposed on the side of the display panel facing away from the support member and covering the opening, the cover plate being connected to the optical adhesive layer, wherein the support member includes a first flat portion, a first bent portion, and a first slot, the first bent portion being connected to the outer periphery of the first flat portion, the first bent portion including a first bending angle, and the first slot being disposed at the first bending angle, the optical adhesive layer including a second flat portion, a second bent portion, and a second slot, the second bent portion being connected to the outer periphery of the second flat portion, the second bent portion including a second bending angle, and the second slot being disposed at the second bending angle, the second slot being offset from the orthographic projection of the support member and at least a portion of the first slot.

[0006] According to an embodiment of the first aspect of this application, the second bending portion includes second side portions disposed opposite to each other along the second direction and the third direction, a second bending angle connecting the two second side portions, the outer edge of the second bending angle being located between the outer edges of the two second side portions connected thereto and the second flat portion, and the first direction, the second direction and the third direction intersecting each other.

[0007] According to an embodiment of the first aspect of this application, the display panel includes a display area and a non-display area, the non-display area is disposed around the display area, and the outer edge of the second bend angle is within the non-display area.

[0008] According to an embodiment of the first aspect of this application, the display panel includes a polarizer disposed on the side of the optical adhesive layer away from the cover plate. The polarizer includes a third flat portion, a third bent portion, and a third slot. The third bent portion is connected to the outer periphery of the third flat portion. The third bent portion includes a third bending angle, and the third slot is disposed at the third bending angle.

[0009] According to an embodiment of the first aspect of this application, at least one of the first slot and the second slot is offset from the third slot in the orthographic projection of the polarizer.

[0010] According to an embodiment of the first aspect of this application, the third bending portion includes a third side portion disposed opposite to the first direction and the third direction, the third bending angle is located between the two third side portions, and the outer edge of the third bending angle is located between the outer edges of the two third side portions connected thereto and the third flat portion.

[0011] According to an embodiment of the first aspect of this application, the outer edges of the first bend and the second bend are both arc-shaped edges, and a plurality of first slots are evenly spaced along the extension direction of the arc-shaped edges, and / or a plurality of second slots are evenly spaced along the extension direction of the arc-shaped edges.

[0012] According to the first aspect of the present application, the centers of the arc edges of the first bend and the second bend coincide in the first direction, the central angle a1 corresponding to the opening of the first slot, the central angle a2 corresponding to the opening of the second slot, and the minimum central angle a3 formed by the edge of the first slot and the edge of the second slot connected thereto satisfy a1=a2=a3.

[0013] According to an embodiment of the first aspect of this application, the bottom of the first slot and the bottom of the second slot are offset from each other.

[0014] According to an embodiment of the first aspect of this application, the extension length of the first groove gradually increases from the end of the first bend to the middle of the first bend, and / or the extension length of the second groove gradually increases from the end of the second bend to the middle of the second bend.

[0015] In the display device provided in this application embodiment, the display device includes a housing, a support member, a display panel, and a cover plate. The housing includes a wall panel and a cavity enclosed by the wall panel with an opening in a first direction. The cavity provides protection for the display panel. The support member is located within the cavity. The display panel includes an array substrate, a light-emitting device layer, and an optical adhesive layer stacked along the first direction. The array substrate is located between the display panel and the support member. The optical adhesive layer is located on the side of the light-emitting device layer facing away from the array substrate. Both the support member and the display panel are located within the cavity. The support member supports the display panel. The cover plate is disposed on the side of the display panel facing away from the support member and covers the opening. The cover plate is connected to the optical adhesive layer. The support member includes a first flat portion and a first bent portion surrounding the first flat portion. The first bent portion includes a first bending angle. A first slot is disposed at the first bending angle. The first bending angle can release at least part of the stress at the first bending angle during the compression process of the support member and the cover plate, thereby improving the formation of wrinkles at the first bending angle. To address the issue of wrinkles and deformation caused by compression of the display panel, the optical adhesive layer includes a second flat portion and a second bent portion connected to the outer periphery of the second flat portion. A second groove is provided at the second bend angle of the second bend angle. The second bend angle can release at least part of the stress at the second bend angle during the compression process between the display panel and the cover plate, thus improving the problem of wrinkles and deformation caused by compression of the display panel at the second bend angle. Furthermore, the portion of the display panel without the optical adhesive layer can release the compressive stress through the first and second grooves and be partially accommodated within the first and second grooves, thereby reducing the overall wrinkling degree of the display panel. Since the second groove is misaligned with the first groove in the orthographic projection of the support member, the portion of the display panel without the optical adhesive layer can release stress more evenly in the first and second grooves and be accommodated therein, further reducing the overall wrinkling degree of the display panel. This helps to improve the display device's poor display problem caused by wrinkles due to compression of the display panel and the cover plate. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0017] Figure 1 This is a schematic diagram of the structure of a display device in one embodiment;

[0018] Figure 2 This is a partial structural schematic diagram of a display device in one embodiment;

[0019] Figure 3 This is a partial structural schematic diagram of a display device in one embodiment;

[0020] Figure 4 This is a partial structural schematic diagram of the display device in another embodiment;

[0021] Figure 5 This is a partial structural schematic diagram of the display device in another embodiment;

[0022] Figure 6 This is a partial structural schematic diagram of the display device in another embodiment;

[0023] Figure 7 This is a partial structural schematic diagram of the display device in another embodiment;

[0024] Figure 8 This is a partial structural schematic diagram of the display device in another embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Display device;

[0027] 110. Shell;

[0028] 120. Support member; 121. First flat portion; 122. First bent portion; 123. First bending angle; 124. First slot;

[0029] 130. Display panel; 131. Array substrate; 132. Light-emitting device layer; 133. Optical adhesive layer; 1331. Second flat portion; 1332. Second bent portion; 1333. Second bending angle; 1334. Second slot; 1335. Second edge; 135. Polarizer; 1351. Third flat portion; 1352. Third bent portion; 1353. Third bending angle; 1354. Third slot; 1355. Third edge;

[0030] 140. Cover plate;

[0031] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0032] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0033] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" 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 direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a schematic diagram of the structure of a display device in one embodiment; Figure 2 This is a partial structural schematic diagram of a display device in one embodiment; Figure 3 This is a partial structural schematic diagram of a display device in one embodiment; Figure 4 This is a partial structural schematic diagram of the display device in another embodiment.

[0036] like Figures 1 to 4As shown, an embodiment of the first aspect of this application provides a display device 100. The display device 100 includes a housing 110, a support member 120, a display panel 130, and a cover plate 140. The housing 110 includes a wall panel and a cavity enclosed by the wall panel with an opening in a first direction X. The support member 120 is located in the cavity and connected to the housing 110. The display panel 130 includes an array substrate 131, a light-emitting device layer 132, and an optical adhesive layer 133 stacked along the first direction X. The array substrate 131 is located between the display panel 130 and the support member 120, and the optical adhesive layer 133 is located on the side of the light-emitting device layer 132 facing away from the array substrate 131. The cover plate 140 is disposed on the side of the display panel 130 facing away from the support member 120 and covers the opening. The cover plate 140 and The optical adhesive layer 133 is connected, wherein the support member 120 includes a first flat portion 121, a first bent portion 122 and a first slot 124. The first bent portion 122 is connected to the outer periphery of the first flat portion 121 and includes a first bending angle 123. The first slot 124 is disposed at the first bending angle 123. The optical adhesive layer 133 includes a second flat portion 1331, a second bent portion 1332 and a second slot 1334. The second bent portion 1332 is connected to the outer periphery of the second flat portion 1331 and includes a second bending angle 1333. The second slot 1334 is disposed at the second bending angle 1333. The second slot 1334 is offset from the orthographic projection of the support member 120 and at least part of the first slot 124.

[0037] In the display device 100 provided in this application embodiment, the display device 100 includes a housing 110, a support member 120, a display panel 130, and a cover plate 140. The housing 110 includes a wall panel and a cavity enclosed by the wall panel with an opening in a first direction X. The cavity is used to provide protection for the display panel 130. The support member 120 is located in the cavity. The display panel 130 includes an array substrate 131, a light-emitting device layer 132, and an optical adhesive layer 133 stacked along the first direction X. The array substrate 131 is located between the display panel 130 and the support member 120. The optical adhesive layer 133 is located on the side of the light-emitting device layer 132 facing away from the array substrate 131. The support member 120... Both the support member 120 and the display panel 130 are located within the cavity. The support member 120 supports the display panel 130. The cover plate 140 is disposed on the side of the display panel 130 away from the support member 120 and covers the opening. The cover plate 140 is connected to the optical adhesive layer 133. The support member 120 includes a first flat portion 121 and a first bent portion 122 surrounding the first flat portion 121. The first bent portion 122 includes a first bending angle 123. A first slot 124 is disposed at the first bending angle 123. The first slot 124 can release at least part of the stress at the first bending angle 123 during the compression process of the support member 120 and the cover plate 140, thereby improving the first bending angle. The optical adhesive layer 133 addresses the issue of wrinkles forming at corner 123 and deformation of the display panel 130 under pressure. It includes a second flat portion 1331 and a second bent portion 1332 connected to the outer periphery of the second flat portion 1331. A second slot 1334 is provided at the second bend angle 1333 of the second bend angle 1333 of the second bend angle 1333. The second slot 1334 allows for the release of at least part of the stress at the second bend angle 1333 during the compression process between the display panel 130 and the cover plate 140, thus mitigating the problem of wrinkles forming at the second bend angle 1333 and deformation of the display panel 130 under pressure. Furthermore, the portion of the display panel 130 without the optical adhesive layer 133 can pass through the second bend angle 123. The first slot 124 and the second slot 1334 release the compressive stress and are partially accommodated within the first slot 124 and the second slot 1334, thereby reducing the overall wrinkling degree of the display panel 130. Furthermore, since the second slot 1334 is misaligned with the first slot 124 in the orthographic projection of the support member 120, the portion of the display panel 130 without the optical adhesive layer 133 can release stress more evenly in the first slot 124 and the second slot 1334 and be accommodated therein, further reducing the overall wrinkling degree of the display panel 130. This helps to improve the display malfunction problem of the display device 100 caused by the compression wrinkling of the display panel 130 and the cover plate 140.

[0038] Display device 100 includes, but is not limited to, mobile phones, laptops, tablets, personal digital assistants, wearable devices, or in-vehicle devices. In this embodiment, a mobile phone is used as an example for illustration.

[0039] The display device 100 includes a housing 110, which includes a wall panel and a cavity enclosed by the wall panel with an opening in a first direction X. The wall panel may include a split-formed middle frame and a back panel. The middle frame is usually made of metal (such as aluminum alloy, titanium alloy, etc.) or plastic and serves as a supporting "skeleton" for internal components (such as camera components, audio components, etc.). The back panel and cover plate 140 are respectively connected to the two sides of the middle frame. The back panel and cover plate 140 are connected to the middle frame by means of buckles, adhesives, or screws.

[0040] The display device 100 includes a support member 120, which can be a film layer made of materials such as PET (polyethylene terephthalate), PI (polyimide), or PBT (polybutylene terephthalate). The support member 120 provides support and protection for the display panel 130, preventing excessive deformation of the display panel 130 and preventing external impurities from entering the display panel 130 and affecting its display effect. Furthermore, the support member 120 can deform under stress, allowing it to bend and form a first bend 122, thus enabling the display device 100 to achieve a curved display.

[0041] The display device 100 includes a display panel 130, which is used to display text, images, videos, etc. The display panel 130 is a flexible display panel; exemplaryly, it may be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini organic light-emitting diode (MLED) display, a micro organic light-emitting diode (MLED) display, a quantum dot light-emitting diode (QLED) display, etc.

[0042] The display panel 130 includes an array substrate 131, a light-emitting device layer 132, and an optical adhesive layer 133 stacked along a first direction X. The array substrate 131 is typically made of glass or a flexible material (such as polyimide) and serves to support the light-emitting device layer 132 and protect the internal structure. Thin-film transistor (TFT) circuitry is integrated on the surface of the array substrate 131, enabling grayscale adjustment and dynamic refresh of the displayed image by precisely controlling the current intensity of each pixel. The light-emitting device layer 132 is composed of multiple layers of organic materials stacked together, wherein the light-emitting layer (EML) generates photons through the recombination of electrons and holes, directly realizing the conversion of electrical energy into light energy. Combinations of different colored light-emitting layer materials (red, green, and blue) can achieve full-color display. A first inorganic barrier film layer, a first organic barrier film layer, and a second inorganic barrier film layer are usually disposed between the optical adhesive layer 133 and the light-emitting device layer 132. First, the first inorganic barrier film layer is formed on the light-emitting device layer 132 using chemical vapor deposition (CVD) technology. Then, the first organic barrier film layer is formed on the first inorganic barrier film layer using inkjet printing technology. Finally, the second inorganic barrier film layer is formed on the first organic barrier film layer using chemical vapor deposition technology.

[0043] The display device 100 includes a cover plate 140, which is made of a transparent material. Images, pictures, or videos displayed on the display surface of the display panel 130 can be viewed by the user through the cover plate 140, and the cover plate 140 protects the display panel 130 and prevents the display panel 130 from being damaged.

[0044] For example, the cover plate 140 is made of glass or PET (Polyethylene terephthalate).

[0045] The cover plate 140 includes an integrally formed flat portion and a bent portion. The bent portion is connected to the housing 110. The bent portion surrounds the periphery of the flat portion and bends towards the cavity to achieve a curved display effect of the display device 100. When the display panel 130, support member 120, and cover plate 140 are connected, the flexible display panel 130 is attached to the curved surface of the bent portion. Due to the difference in physical area between the curved surface and the flat surface, the flexible display panel 130 is subjected to compressive stress in different directions when it is attached. When the compressive stress is greater than or equal to the buckling stress of the flexible display panel 130 itself, the flexible display panel 130 deforms and wrinkles. Furthermore, the bent portion includes a bending angle at its diagonal position. The compressive stress on the flexible display panel 130 at the bending angle is greater, resulting in more obvious wrinkles.

[0046] The support member 120 includes a first flat portion 121 and a first bent portion 122 connected to each other, with the first bent portion 122 surrounding the periphery of the first flat portion 121. The first flat portion 121 and the flat portion are correspondingly arranged, the first bent portion 122 and the bent portion are correspondingly arranged, and the first bending angle 123 and the bending angle are correspondingly arranged.

[0047] For example, the first bending portion 122 is in the shape of a rectangular frame, and the first bending angle 123 is located at the four diagonal positions of the rectangular frame.

[0048] The first slot 124 is disposed at the first bending angle 123. Specifically, the first slot 124 extends from the outer edge of the first bending angle 123 toward the first flat portion 121 and penetrates the support member 120 in the thickness direction of the first bending portion 122. During the compression process between the support member 120 and the cover plate 140, the first bending portion 122 absorbs deformation stress through the first slot 124, which helps to reduce the degree of wrinkling of the support member 120. It should be noted that the first slot 124 extends to the outer edge of the first bending angle 123, which is the side edge of the first bending angle 123 that is away from the first flat portion 121.

[0049] Optionally, the first bent portion 122 and the first flat portion 121 are integrally formed to reduce the processing difficulty of the support member 120.

[0050] Optionally, the first slot 124 is V-shaped, with its width gradually decreasing along the direction close to the first flat portion 121. Adjacent first slots 124 are spaced apart. The V-shaped first slot 124 has a simple structure and is easy to manufacture. Alternatively, the first slot 124 may be C-shaped or rectangular. Or, the first slot 124 may be serrated, with adjacent V-shaped first slots 124 connected to each other. Or, the first slot 124 may be S-shaped, which helps to release stress in more directions. Optionally, the shapes of the first slots 124 within the first bending angle 123 may be the same to reduce the manufacturing difficulty of the support member 120. Alternatively, the shapes of the first slots 124 within the first bending angle 123 may be different. The second slot 1334 and the third slot 1354 are similar and will not be described further hereafter.

[0051] Optionally, the bending angle of the support 120 can be patterned to form a first slot 124.

[0052] Optionally, the number of first slots 124 within the first bend angle 123 can be designed independently. For example, one, two, five, or ten first slots 124 can be provided within the first bend angle 123. The second slot 1334 and the third slot 1354 are similarly described, and will not be repeated hereafter.

[0053] An optical adhesive layer 133 is disposed on the outermost side of the display panel 130 and is connected to the cover plate 140. The optical adhesive layer 133 includes a second flat portion 1331 and a second bent portion 1332 that are interconnected. The second bent portion 1332 surrounds the periphery of the second flat portion 1331 and bends towards the support member 120. The second flat portion 1331 and the flat portion are correspondingly disposed, the second bent portion 1332 and the bent portion are correspondingly disposed, and the second bending angle 1333 and the bending angle are correspondingly disposed.

[0054] For example, the second bend 1332 is rectangular, and the second bend angle 1333 is located at the four opposite corners of the rectangle.

[0055] The second slot 1334 is disposed at the second bending angle 1333. Specifically, the second slot 1334 extends from the outer edge of the second bending angle 1333 toward the second flat portion 1331 and penetrates the optical adhesive layer 133 in the thickness direction of the second bending portion 1332. During the pressing process between the display panel 130 and the cover plate 140, the second bending portion 1332 absorbs deformation stress through the second slot 1334, which helps to reduce the degree of wrinkling in the optical adhesive layer 133.

[0056] The portion of the display panel 130 excluding the optical adhesive layer 133 is referred to as the first screen body. When the first screen body is squeezed by the cover plate 140 and wrinkles are formed, part of the stress on the first screen body is released by the second slot 1334, and the deformation from the first screen body can be accommodated in the second slot 1334 to reduce the overall wrinkling degree of the display panel 130.

[0057] It should be clarified that the second slot 1334 extends to the outer edge of the second bend angle 1333, which is the side edge of the second bend angle 1333 that is away from the second flat portion 1331.

[0058] Optionally, the second bent portion 1332 and the second flat portion 1331 are integrally formed to reduce the processing difficulty of the optical adhesive layer 133.

[0059] The second slot 1334 is offset from the orthographic projection of the support member 120 and at least part of the first slot 124. For example, the wrinkles of the first screen body are usually in the form of alternating concave and convex shapes. When the first slot 124 and the second slot 1334 are offset, the protrusions on both sides of the thickness of the first screen body can be accommodated in the first slot 124 and the second slot 1334 respectively, further reducing the overall wrinkle degree of the display panel 130.

[0060] The misalignment of the first slot 124 and the second slot 1334 means that the projection of the second slot 1334 onto the support member 120 does not completely coincide with the first slot 124.

[0061] Optionally, each of the first slots 124 and each of the second slots 1334 are staggered to reduce the degree of wrinkling in the display panel 130.

[0062] Optionally, the first slot 124 and the second slot 1334 may have the same or different shapes.

[0063] Optionally, a second groove 1334 can be formed on the optical adhesive layer 133 using patterning technology to reduce the processing difficulty of the display panel 130.

[0064] Please see Figure 5 , Figure 5 This is a partial structural schematic diagram of the display device in another embodiment.

[0065] In some embodiments, such as Figures 2 to 5 As shown, the second bending portion 1332 includes a second side portion 1335 disposed opposite to the second direction Y, a second bending angle 1333 connecting the two second side portions 1335, and the outer edge of the second bending angle 1333 located between the outer edges of the two second side portions 1335 connected thereto and the second flat portion 1331. The first direction X, the second direction Y and the third direction Z intersect each other.

[0066] In these embodiments, the second bend angle 1333 is connected between the two second sides 1335, and the outer edge of the second bend angle 1333 is located between the outer edges of the two second sides 1335 connected to it and the second flat portion 1331. By reducing the second bend angle 1333, a larger gap is formed between the end of the first screen body and the cover plate 140, which helps to reduce the degree of deformation of the first screen body and improve the wrinkling problem of the display panel 130.

[0067] For example, the display device 100 is rectangular, the first direction X is the thickness direction of the display device 100, the second direction Y is the length direction of the display device 100, and the third direction Z is the width direction of the display device 100.

[0068] Specifically, the outer edge of the second bending angle 1333 and the outer edge of the second side 1335 are spaced apart so that the second bending angle 1333 is inwardly recessed. This results in a larger deformation gap between the outer edge of the first screen body corresponding to the second bending angle 1333 and the cover plate 140. The compressive force on the first screen body within the cover plate 140 is reduced, which helps to disperse the stress on the first screen body and slow down the degree of deformation of the first screen body.

[0069] The second bend angle 1333 connects the two second sides 1335, meaning that the second bend angle 1333 is located between the two second sides 1335 of the second flat portion 1331 in its second direction Y and third direction Z.

[0070] For example, firstly, a second slot 1334 is patterned to form a second bend angle 1333, and then the portion of the second bend 1332 near the outer edge is cut off to misalign the second bend 1332 and the second side 1335.

[0071] Optionally, the distance between the outer edge of the second bent portion 1332 and the outer edge of the second side portion 1335 is between 0.2 mm and 0.5 mm. For example, the distance between the outer edge of the second bent portion 1332 and the outer edge of the second side portion 1335 is 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc.

[0072] In some embodiments, such as Figures 2 to 5 As shown, the display panel 130 includes a display area and a non-display area, with the non-display area surrounding the display area and the outer edge of the second bending angle 1333 within the non-display area.

[0073] In these embodiments, the display panel 130 includes a display area and a non-display area surrounding the display area, with the outer edge of the second bend angle 1333 inside the non-display area to avoid the inwardly recessed second bend angle 1333 affecting the normal display of the display panel 130.

[0074] The display panel 130 displays the image only in the display area. The second bend angle 1333 is set inward, and the outer edge of the second bend angle 1333 is in the non-display area, which does not affect the normal display of the display panel 130.

[0075] Optionally, the outer edge of the second bending angle 1333 is flush with the edge of the non-display area to increase the deformation gap between the first screen body and the cover plate 140.

[0076] Optionally, all second slots 1334 are located in the non-display area to reduce the impact of the second slots 1334 on the display effect of the display device 100; or some of the second slots 1334 extend into the display area, and the second slots 1334 and the light-emitting units of the light-emitting functional layer are misaligned to reduce the damage to the display function of the display panel 130 caused by setting the second slots 1334.

[0077] Please see Figure 6 , Figure 6 This is a partial structural schematic diagram of the display device in another embodiment.

[0078] In some embodiments, such as Figure 2 , Figure 4 and Figure 6As shown, the display panel 130 includes a polarizer 135, which is disposed on the side of the optical adhesive layer 133 away from the cover plate 140. The polarizer 135 includes a third flat portion 1351, a third bent portion 1352 and a third slot 1354. The third bent portion 1352 is connected to the outer periphery of the third flat portion 1351. The third bent portion 1352 includes a third bending angle 1353, and the third slot 1354 is disposed at the third bending angle 1353.

[0079] In these embodiments, the display panel 130 also includes a polarizer 135 disposed on the side of the optical adhesive layer 133 facing away from the cover plate 140. By providing a third slot 1354 at the third bending angle 1353 of the polarizer 135, at least part of the stress at the third bending angle 1353 can be released during the compression process of the display panel 130 and the cover plate 140, thereby improving the problem of wrinkles at the third bending angle 1353 and deformation of the display panel 130 under compression.

[0080] The polarizer 135 is disposed on the side of the optical adhesive layer 133 away from the cover plate 140. The polarizer 135 is mainly used to convert incident light into natural light.

[0081] For example, the third bend 1352 is rectangular, and the third bend angle 1353 is located at the four opposite corners of the rectangle.

[0082] The third slot 1354 is located at the third bend angle 1353. Specifically, the third slot 1354 extends from the outer edge of the third bend angle 1353 toward the third flat portion 1351 and penetrates the polarizer 135 in the thickness direction of the third bend portion 1352. During the pressing process between the polarizer 135 and the cover plate 140, the third bend portion 1352 absorbs deformation stress through the third slot 1354, which helps to reduce the degree of wrinkling of the polarizer 135. It should be noted that the third slot 1354 extends to the outer edge of the third bend angle 1353, which is the three edges of the third bend angle 1353 that are away from the third flat portion 1351.

[0083] Optionally, the third bent portion 1352 and the third flat portion 1351 are integrally formed to reduce the processing difficulty of the polarizer 135.

[0084] Optionally, a second slot 1334 and a third slot 1354 are first patterned on the optical adhesive layer 133 and the polarizer 135, respectively. Then, the polarizer 135 and the optical adhesive layer 133 are connected to the light-emitting device layer 132 to form a display panel 130. Alternatively, a second slot 1334 and a third slot 1354 are first patterned on the optical adhesive layer 133 and the polarizer 135, respectively. Then, the optical adhesive layer 133 and the polarizer 135 are formed into an intermediate layer, and the intermediate layer is connected to the light-emitting device layer 132 to form a display panel 130. Alternatively, an intermediate layer is first formed on the optical adhesive layer 133 and the polarizer 135. Then, a second slot 1334 and a third slot 1354 are patterned on the intermediate layer, and the intermediate layer is connected to the light-emitting device layer 132 to form a display panel 130.

[0085] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, at least one of the first slot 124 and the second slot 1334 is offset from the third slot 1354 in the orthographic projection of the polarizer 135.

[0086] In these embodiments, at least one of the first slot 124 and the second slot 1334 is offset from the orthographic projection of the polarizer 135 and the third slot 1354, so that the portion of the display panel 130 excluding the optical adhesive layer 133 and the polarizer 135 can be more evenly stressed and accommodated in the second slot 1334 and the third slot 1354, further reducing the overall wrinkling degree of the display panel 130. This helps to improve the display problem of poor display of the display device 100 caused by the squeezing wrinkles of the display panel 130 and the cover plate 140.

[0087] Optionally, the second slot 1334 and the third slot 1354 are aligned with each other. For example, the second slot 1334 and the third slot 1354 are formed in the same patterning process, reducing the processing difficulty of the display panel 130; or the first slot 124 and the third slot 1354 are aligned with each other; or the first slot 124, the second slot 1334 and the third slot 1354 are staggered in pairs. Through the cooperation of the first slot 124, the second slot 1334 and the third slot 1354, the portion of the display panel 130 excluding the optical adhesive layer 133 and the polarizer 135 can release stress more evenly and be accommodated in the first slot 124, the second slot 1334 and the third slot 1354, further reducing the overall wrinkle degree of the display panel 130.

[0088] For example, taking the second slot 1334 and the third slot 1354 as examples, the second slot 1334 and the third slot 1354 being aligned with each other means that the orthographic projections of the second slot 1334 and the third slot 1354 in the first direction X completely coincide; the second slot 1334 and the third slot 1354 being misaligned with each other means that the orthographic projections of the second slot 1334 and the third slot 1354 in the first direction X do not completely coincide.

[0089] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the third bending portion 1352 includes a third side portion 1355 disposed opposite to each other along the second direction Y and the third direction Z, a third bending angle 1353 located between the two third side portions 1355, and the outer edge of the third bending angle 1353 located between the outer edges of the two third side portions 1355 connected thereto and the third flat portion 1351.

[0090] In these embodiments, the third bend angle 1353 is located between the two third sides 1355, and the outer edge of the third bend angle 1353 is located between the outer edges of the two third sides 1355 connected to it and the third flat portion 1351. By narrowing the third bend angle 1353, a larger gap is formed between the end of the portion of the display panel 130 from which the optical adhesive layer 133 and the polarizer 135 are removed and the cover plate 140. This helps to reduce the degree of deformation of the display panel 130 and improve the wrinkling problem of the display panel 130.

[0091] For ease of description, the portion of the display panel 130 excluding the optical adhesive layer 133 and the polarizer 135 is referred to as the second screen.

[0092] Optionally, the outer edge of the third bending angle 1353 and the outer edge of the third side 1355 are spaced apart so that the third bending angle 1353 is recessed. This results in a larger deformation gap between the outer edge of the second screen body corresponding to the third bending angle 1353 and the cover plate 140 or optical adhesive layer 133. The compressive force on the second screen body within the cover plate 140 is reduced, which helps to disperse the stress on the second screen body and slow down the degree of deformation of the second screen body.

[0093] The third bend angle 1353 connects the two third sides 1355, meaning that the third bend angle 1353 is located between the two third sides 1355 of the third flat portion 1351 in its second direction Y and third direction Z.

[0094] Optionally, if the optical adhesive layer 133 is disposed on the polarizer 135, the area of ​​the optical adhesive layer 133 will not exceed the range of the polarizer 135, that is, the distance between the outer edge of the second bent portion 1332 and the outer edge of the second side portion 1335 is greater than or equal to the distance between the outer edge of the third bent portion 1352 and the outer edge of the third side portion 1355.

[0095] Please see Figure 7 , Figure 7 This is a partial structural schematic diagram of the display device in another embodiment.

[0096] In some embodiments, such as Figure 2 , Figure 3 and Figure 7 As shown, the outer edges of the first bending portion 122 and the second bending portion 1332 are both arc-shaped edges, and a plurality of first slots 124 are evenly spaced along the extension direction of the arc-shaped edges, and / or a plurality of second slots 1334 are evenly spaced along the extension direction of the arc-shaped edges.

[0097] In these embodiments, a plurality of first slots 124 are evenly spaced along the extension direction of the arc edge, and / or a plurality of second slots 1334 are evenly spaced along the extension direction of the arc edge, so that the first screen body can release stress evenly through the first slots 124 and the second slots 1334, so as to smooth the degree of deformation of the first screen body and reduce the degree of wrinkling of the first screen body.

[0098] Optionally, multiple third slots 1354 are evenly spaced along the extension direction of the arc-shaped edge.

[0099] For example, the circumferential angle of the arcuate edges of the first bend 122 and the second bend 1332 is Π / 2.

[0100] In some embodiments, such as Figure 2 , Figure 3 and Figure 7 As shown, the centers of the arc edges of the first bend 122 and the second bend 1332 coincide in the first direction X. The central angle a1 of the opening of the first slot 124, the central angle a2 of the opening of the second slot 1334, and the minimum central angle a3 formed by the edge of the first slot 124 and the edge of the adjacent second slot 1334 satisfy a1=a2=a3.

[0101] In these embodiments, the central angle a1 corresponding to the opening of the first slot 124, the central angle a2 corresponding to the opening of the second slot 1334, and the minimum central angle a3 formed by the edge of the first slot 124 and the edge of the adjacent second slot 1334 satisfy a1=a2=a3. The first slot 124 and the second slot 1334 are evenly distributed so that the first screen body can release stress evenly through the first slot 124 and the second slot 1334, thereby smoothing the degree of deformation of the first screen body and reducing the degree of wrinkling of the first screen body.

[0102] Optionally, along the arcuate edge extension direction of the first bend 122, the minimum central angle between the edge of the first slot 124 and the edge of the adjacent second slot 1334 is a3, that is, the central angles corresponding to the two adjacent edges of the first slot 124 and the second slot 1334 that are close to each other are a3.

[0103] Optionally, the central angle a4 corresponding to the opening of the third slot 1354, the minimum central angle a5 formed by the edge of the first slot 124 and the edge of the adjacent third slot 1354, and the minimum central angle a6 formed by the edge of the second slot 1334 and the edge of the adjacent third slot 1354 satisfy a1=a2=a4=a5=a6.

[0104] In some embodiments, such as Figure 7 As shown, the bottom of the first slot 124 and the bottom of the second slot 1334 are staggered.

[0105] In these embodiments, the bottom of the first slot 124 and the bottom of the second slot 1334 are staggered to fully disperse the bending stress of the first bending angle 123 and the second bending angle 1333.

[0106] Optionally, the bottoms of the plurality of first slots 124 are arranged along a first arc-shaped path, and the bottoms of the plurality of second slots 1334 are arranged along a second arc-shaped path. The first arc-shaped path and the second arc-shaped path are spaced apart along the radial direction of the first bend 122 or the second bend (not shown in the figure).

[0107] Optionally, the bottoms of the first slot 124, the second slot 1334, and the second slot 1334 are staggered.

[0108] Please see Figure 8 , Figure 8 This is a partial structural schematic diagram of the display device in another embodiment.

[0109] In some embodiments, such as Figure 2 and Figure 8As shown, the extension length of the first slot 124 gradually increases from the end of the first bend 122 to the middle of the first bend 122, and / or the extension length of the second slot 1334 gradually increases from the end of the second bend 1332 to the middle of the second bend 1332.

[0110] In these embodiments, the extension length of the first slot 124 gradually increases from the end of the first bend 122 to the middle of the first bend 122, and / or the extension length of the second slot 1334 gradually increases from the end of the second bend 1332 to the middle of the second bend 1332. While fully releasing the stress of the display panel 130 and alleviating the wrinkles of the display panel 130, the impact of setting the first slot 124 or the second slot 1334 on the structural strength of the support member 120 and the optical adhesive layer 133 is reduced.

[0111] Optionally, taking the first bend 122 as an example, the outer edge of the first bend 122 includes a first endpoint, a second endpoint, and a midpoint. The central angle between the first endpoint and the second endpoint corresponding to the outer edge of the first bend 122 is θ, and the central angle between the first endpoint and the midpoint corresponding to the outer edge of the first bend 122 is θ / 2. The midpoint of the first bend 122 refers to the midpoint position of the first bend 122. The second slot 1334 is similar.

[0112] Optionally, each of the first slots 124 is arranged symmetrically along the axis connecting the midpoint and the center of the circle, so that the first slots 124 are evenly distributed. The second slots 1334 are arranged in the same way.

[0113] Optionally, the extension length of the first slot 124 refers to the radial extension dimension of the first slot 124 in the first bend 122. The same applies to the second slot 1334.

[0114] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display device, characterized in that, include: The housing includes wall panels and a cavity enclosed by the wall panels and opening in a first direction; The support member is located within the cavity and connected to the housing; The display panel includes an array substrate, a light-emitting device layer, and an optical adhesive layer stacked along the first direction. The array substrate is located between the display panel and the support member, and the optical adhesive layer is located on the side of the light-emitting device layer opposite to the array substrate. A cover plate is disposed on the side of the display panel opposite to the support member and covers the opening. The cover plate is connected to the optical adhesive layer. The support member includes a first flat portion, a first bent portion, and a first slot. The first bent portion is connected to the outer periphery of the first flat portion and includes a first bending angle. The first slot is disposed at the first bending angle. The optical adhesive layer includes a second flat portion, a second bent portion, and a second slot. The second bent portion is connected to the outer periphery of the second flat portion and includes a second bending angle. The second slot is disposed at the second bending angle. The second slot is misaligned with at least a portion of the first slot in the orthographic projection of the support member.

2. The display device according to claim 1, characterized in that, The second bending portion includes a second side portion disposed opposite to the second direction and the third direction. The second bending angle connects the two second side portions. The outer edge of the second bending angle is located between the outer edges of the two second side portions connected to it and the second flat portion. The first direction, the second direction and the third direction intersect each other.

3. The display device according to claim 2, characterized in that, The display panel includes a display area and a non-display area, the non-display area being arranged around the display area, and the outer edge of the second bend angle being within the non-display area.

4. The display device according to any one of claims 1 to 3, characterized in that, The display panel includes a polarizer disposed on the side of the optical adhesive layer away from the cover plate. The polarizer includes a third flat portion, a third bent portion, and a third slot. The third bent portion is connected to the outer periphery of the third flat portion. The third bent portion includes a third bending angle. The third slot is disposed at the third bending angle.

5. The display device according to claim 4, characterized in that, At least one of the first slot and the second slot is offset from the orthographic projection of the polarizer and the third slot.

6. The display device according to claim 4, characterized in that, The third bending portion includes a third side portion disposed opposite to the first direction and the third direction. The third bending angle is located between the two third side portions. The outer edge of the third bending angle is located between the outer edges of the two third side portions connected to it and the third flat portion.

7. The display device according to claim 1, characterized in that, The outer edges of the first bend and the second bend are both arc-shaped edges. Multiple first slots are evenly spaced along the extension direction of the arc-shaped edges, and / or multiple second slots are evenly spaced along the extension direction of the arc-shaped edges.

8. The display device according to claim 7, characterized in that, The centers of the arc edges of the first bend and the second bend coincide in the first direction. The central angle a1 of the opening of the first slot, the central angle a2 of the opening of the second slot, and the minimum central angle a3 formed by the edge of the first slot and the adjacent edge of the second slot satisfy a1=a2=a3.

9. The display device according to claim 1, characterized in that, The bottom of the first slot and the bottom of the second slot are offset from each other.

10. The display device according to claim 1, characterized in that, The length of the first groove gradually increases from the end of the first bend to the middle of the first bend, and / or the length of the second groove gradually increases from the end of the second bend to the middle of the second bend.

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