Display device

Abstract

The invention relates to a display device. The display device comprises a display panel, an optical film and side sealing glue. The optical film is arranged on the light emitting side of the display panel; the side sealing glue is arranged on the peripheral side of the display panel, and the side sealing glue covers at least part of the side face of the display panel; wherein the optical film covers the light emitting side of the display panel and is arranged in an extension mode relative to the edge of the display panel, and the side sealing glue is located in a space formed by the display panel in an inward shrinkage mode relative to the optical film and is connected with the optical film and the display panel. According to the display device, screen surface integration can be achieved, the overall visual effect of the screen is improved, and the fragment risk is reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0002] An organic light emitting diode (OLED) display device includes a display panel and an optical film located on the light-emitting side of the display panel, such as a polarizer. Currently, the polarizer of an OLED display device is usually designed to be retracted into the display panel to avoid problems such as the polarizer being suspended beyond the edge of the display panel due to lamination accuracy, resulting in damage and water vapor intrusion. However, the design of the polarizer being retracted into the display panel has some disadvantages: for example, the screen has poor integrity, there is a sense of step between the edge of the polarizer and the display panel, and the overall sensory effect of the screen is poor; for another example, due to the accuracy limitation of the polarizer lamination process, there will be differences in the actual retraction values ​​of the polarizer on the left and right, resulting in poor visual effects; and during the installation process, the installation mechanism is in direct contact with the display panel, resulting in a high risk of breakage and other problems. Summary of the invention

[0003] An embodiment of the present application provides a display device, which can achieve screen surface integration, improve the overall visual effect of the screen, and reduce the risk of fragmentation.

[0004] The present application provides a display device, the display device comprising:

[0005] Display panel;

[0006] An optical film, arranged on the light-emitting side of the display panel; and

[0007] A side sealant is disposed on the peripheral side of the display panel, and the side sealant covers at least a portion of the side surface of the display panel;

[0008] The optical film covers the light-emitting side of the display panel and is arranged to extend outwardly relative to the edge of the display panel. The side sealant is located in a space formed by the display panel being retracted relative to the optical film and connects the optical film and the display panel.

[0009] In some embodiments, the optical film has an extension distance d1 relative to the edge of the display panel, and 0.2 mm≤d1≤0.5 mm.

[0010] In some embodiments, 0.25 mm ≤ d1 ≤ 0.35 mm.

[0011] In some embodiments, along the thickness direction of the display panel, the side sealant has a first end and a second end opposite to each other, the first end is close to the optical film, and the thickness of the first end is d2, d2≤d1.

[0012] In some embodiments, the optical density of the side sealant ranges from 1.7 to 2.0.

[0013] In some embodiments, the color of the side sealant is the same as the color of the optical film.

[0014] In some embodiments, the optical film includes a polarizer.

[0015] In some embodiments, the display device further includes a heat dissipation layer, the heat dissipation layer is disposed on a side of the display panel away from the optical film, and the side sealing glue covers a side surface of the heat dissipation layer.

[0016] In some embodiments, the display device further includes a supporting layer, which is disposed on a side of the heat dissipation layer away from the display panel, and an end of the side sealant close to the supporting layer contacts a side of the supporting layer close to the heat dissipation layer.

[0017] In some embodiments, the display device also includes a back panel, which includes a bottom panel and a side panel, the bottom panel and the side panel enclose a receiving cavity, the optical film, the display panel, the heat dissipation layer and the support layer are arranged in the receiving cavity, and the side sealing glue is located between the display panel and the side panel.

[0018] The present application provides a display device, which extends an optical film relative to the edge of a display panel by a certain distance so that the optical film covers the entire surface of the light-emitting side of the display panel, thereby avoiding a sense of step when viewing the display panel from the viewing side, improving the overall visual effect of the screen, and realizing screen surface integration; at the same time, by arranging a side sealant covering the side of the display panel on the peripheral side of the display panel, one end of the side sealant contacts the optical film to support the extended part of the optical film, thereby avoiding the extended part of the optical film from being broken, and at the same time, it can also block the invasion of water vapor. Therefore, the display device of the present application can realize screen surface integration, improve the overall visual effect of the screen, and reduce the risk of fragmentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0020] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0021] Figure 1 It is a cross-sectional view of a display device provided by the related art;

[0022] Figure 2 It is a partial top view of a display device provided by the related art;

[0023] Figure 3 is a cross-sectional view of a display device provided in an embodiment of the present application;

[0024] Figure 4 is a partial top view of a display device provided by an embodiment of the present application;

[0025] Figure 5 It is a cross-sectional view of another display device provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 100, display device; 110, display panel; 111, array substrate; 112, light-emitting device layer; 113, cover plate; 114, packaging glue; 120, optical film; 121, optical film extension; 130, side sealing glue; 131, first end; 132, second end; 140, heat dissipation layer; 150, support layer; 160, back plate; 161, bottom plate; 162, side plate; 170, adhesive layer; 210, control circuit board; 220, flexible circuit board; 221, first horizontal portion; 222, bending portion; 223, second horizontal portion; 230, first shading layer; 240, second shading layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] Please refer to Figure 1-Figure 2 , Figure 1 is a cross-sectional view of a display device in the related art, Figure 2 This is a partial top view of a display device in the related art. Figure 1The display device includes a display panel 110 and an optical film 120 located on the light-emitting side of the display panel 110. The optical film 120 may be, for example, a polarizing film. The optical film 120 is retracted at the edge of the display panel 110. The retracted distance of the optical film 120 relative to the edge of the display panel 110 is d0, for example, d0 = 0.5 mm. Please refer to Figure 2 It can be seen from the top view of the display device 100 that when the optical film 120 is retracted to the edge of the display panel 110, there is an obvious sense of step between the edge of the optical film 120 and the edge of the display panel 110, and the visual effect of the screen integrity is poor. In addition, the existing optical film 120 is usually attached to the light-emitting side of the display panel 110 through a bonding process after cutting, and the accuracy of the bonding process is usually ±0.3mm, which has a large error, resulting in a significant difference in the retraction distance of the opposite sides of the optical film 120, resulting in a poor overall visual effect. In addition, during the installation process, since the edge of the upper surface of the display panel 110 is exposed, it is easy to directly contact the installation mechanism, resulting in a high risk of fragmentation.

[0030] To solve the above problems, the present application provides a display device 100. Figure 3 , Figure 3 A cross-sectional view of a display device 100 provided in an embodiment of the present application, wherein the display device 100 of the present application includes a display panel 110, an optical film 120, and a side sealant 130. The optical film 120 is disposed on the light-emitting side of the display panel 110; the side sealant 130 is disposed on the peripheral side of the display panel 110, and the side sealant 130 covers the side of the display panel 110; wherein the optical film 120 covers the light-emitting side of the display panel 110, and is disposed outwardly relative to the edge of the display panel 110, and the side sealant 130 is located in a space formed by the end of the display panel 110 being retracted relative to the optical film 120, and connects the optical film 120 and the display panel 110.

[0031] The display panel 110 may be an OLED display panel, and the display panel 110 includes an array substrate 111 and a cover plate 113 that are arranged opposite to each other, a light-emitting device layer 112 located between the array substrate 111 and the cover plate 113, and a packaging glue 114 located between the array substrate 111 and the cover plate 113 and surrounding the light-emitting device layer 112; wherein the optical film 120 is located on a side of the cover plate 113 away from the array substrate 111, and the optical film 120 extends a certain distance relative to the edge of the cover plate 113. Further, the array substrate 111 includes a first substrate and a driving circuit layer arranged on a side of the first substrate close to the light-emitting device layer 112; the first substrate and the cover plate 113 may be glass, but are not limited thereto; the light-emitting device layer 112 includes light-emitting devices arranged in an array, such as at least one of a red light-emitting device, a green light-emitting device, and a blue light-emitting device, and specifically, the light-emitting device includes an anode, a light-emitting functional layer, and a cathode that are stacked in sequence.

[0032] In the present application, the edges of the array substrate 111 and the cover plate 113 are flush, and the two can be cut using the same cutting process. The encapsulation glue 114 can be flush with the edge of the array substrate 111, or the encapsulation glue 114 can be indented at the edge of the array substrate 111.

[0033] The side sealant 130 covers the side of the display panel 110, that is, the side sealant 130 covers the side of the array substrate 111, the side of the packaging glue 114 and the side of the cover plate 113. The material of the side sealant 130 can be ultraviolet curing glue (UV glue), by coating the UV glue on the side surface of the display panel 110, and curing the coated UV glue by ultraviolet light, so that the UV glue is attached to the side of the display panel 110 and forms a fixed shape. One end of the side sealant 130 close to the optical film 120 contacts the side of the optical film 120 close to the display panel 110 to support the optical film extension 121, wherein the optical film extension 121 refers to the portion of the optical film 120 protruding from the edge of the display panel 110.

[0034] In the present application, the optical film 120 may be a polarizing film or other functional films, which is not limited here.

[0035] In this application, please refer to Figure 4 , Figure 4 A partial top view of a display device 100 provided in an embodiment of the present application. The optical film 120 covers the light-emitting side of the display panel 110 and extends a certain distance relative to the edge of the display panel 110, so that the optical film 120 covers the entire surface of the display panel 110, which can avoid the appearance of steps on the screen surface, realize the integration of the screen surface, and avoid the problem of broken pieces caused by direct contact between the mounting mechanism and the display panel 110. Please refer to Figure 3The present application also sets a side sealant 130 on the side of the display panel 110, and one end of the side sealant 130 contacts the optical film 120 to support the optical film extension 121 to prevent the optical film extension 121 from being suspended in the air and being damaged, while also being able to block the intrusion of water vapor.

[0036] In the present application, the optical film 120 extends a certain distance relative to the edge of the display panel 110, and the extension distance is related to the lamination accuracy and cutting accuracy of the optical film 120. By making the edge of the optical film 120 extend a certain distance beyond the edge of the display panel 110, it is ensured that during the lamination process of the optical film 120, under the influence of the lamination error, the optical film 120 can still cover the entire surface of the light-emitting side of the display panel 110, thereby avoiding the screen surface from having a step feeling due to the lamination accuracy of the optical film 120.

[0037] In some embodiments, the extension distance of the optical film 120 relative to the edge of the display panel 110 is d1, 0.2mm≤d1≤0.5mm. For example, the extension distance d1 can be equal to 0.3mm. Since the accuracy of the bonding process is usually ±0.3mm, the extension distance d1 is equal to 0.3mm, which can avoid the appearance of a step on the screen surface due to the bonding accuracy of the optical film 120. Alternatively, in some other embodiments, the extension distance of the optical film 120 relative to the edge of the display panel 110 can also be set to 0.2mm, 0.25mm, 0.35mm, 0.4mm, 0.45mm or 0.5mm.

[0038] In some embodiments, the optical film 120 can be cut by laser cutting. Since the laser cutting process has high precision, using the laser cutting process to cut the optical film 120 can improve the precision of the overall dimensions of the display device 100 and further improve the overall visual effect of the screen. For example, first, the optical film 120 is attached to the surface of the display panel 110, and the optical film 120 extends beyond the edge of the display panel 110 by 3 mm. If the display panel 110 includes multiple side edges, on the same side of the display panel 110, the distance between the edge of the optical film 120 and the edge of the display panel 110 is 3 mm; then, the side edges of the optical film 120 are cut by laser cutting. After cutting, the distance between the edges of each side of the optical film 120 relative to the edge of the display panel 110 on the same side is approximately 0.3 mm. Since the accuracy of the laser cutting process is generally ±0.05 mm, the distance between the edges of each side of the optical film 120 relative to the edge of the display panel 110 on the same side is in the range of 0.3 mm±0.05 mm, that is, 0.25 mm≤d1≤0.35 mm. By first laminating the optical film 120 and then cutting the edge of the optical film 120 using a laser cutting process, the consistency of the extension distance d1 on each side of the optical film 120 can be improved, thereby improving the lamination accuracy of the optical film 120 relative to the display panel 110 and improving the accuracy of the overall external dimensions of the display device 100.

[0039] In some embodiments, along the thickness direction of the display panel 110, i.e., the Y direction, the side sealant 130 has a first end 131 and a second end 132 opposite to each other, and the first end 131 is close to the optical film 120 and contacts the optical film extension 121 to support the optical film extension 121. Along the direction parallel to the display panel 110, i.e., the X direction, the thickness of the first end 131 is d2, 0.2mm≤d2≤0.5mm. For example, the thickness of the first end 131 can be set to 0.2mm, 0.24mm, 0.28mm, 0.30mm, 0.34mm, 0.38mm, 0.4mm, 0.44mm, 0.48mm or 0.5mm, etc.

[0040] In some embodiments, the thickness of the first end 131 of the side sealant 130 is less than or equal to the width of the optical film extension 121, that is, d2≤d1. The thickness of the first end 131 of the side sealant 130 is the thickness of the first end 131 of the side sealant 130 along the X direction parallel to the display panel 110, the width of the optical film extension 121 is the width of the optical film extension 121 along the X direction parallel to the display panel 110, and the width of the optical film extension 121 is equal to the extension distance d1. In this embodiment, d2≤d1, which can not only ensure the support of the side sealant 130 on the optical film extension 121, but also avoid the side sealant 130 from exceeding the edge of the optical film 120 to form a step, thereby avoiding a visual sense of step.

[0041] In some embodiments, the thickness of the first end 131 may be greater than the thickness of the second end 132. Since the display panel 110 is retracted at the edge of the optical film 120, when the side sealant 130 is applied to the side of the display panel 110, the initial state of the colloid is liquid. Due to factors such as the fluidity and surface tension of the colloid, the thickness of the second end 132 of the side sealant 130 is less than the thickness of the first end 131. In this embodiment, the thickness of the first end 131 of the side sealant 130 is greater than the thickness of the second end 132, which can increase the contact area between the first end 131 and the optical film 120 to ensure the support of the first end 131 on the optical film extension 121, and can also effectively block the intrusion of water vapor, and can make a better transition from the first end 131 to the second end 132 of the side sealant 130, so that the side sealant 130 is closely attached to the side of the display panel 110.

[0042] In some other embodiments, the thickness of the first end 131 may also be equal to the thickness of the second end 132 , which is not specifically limited herein.

[0043] In some embodiments, the color of the side sealant 130 can be the same as the color of the optical film 120 to ensure visual consistency in color on the screen surface and enhance the overall visual effect of the screen. For example, when the optical film 120 is a polarizer, the color of the side sealant 130 can be the same as or similar to the color of the polarizer.

[0044] When the color of the side sealant 130 is the same as that of the optical film 120, the thickness of the first end 131 of the side sealant 130 can be less than or equal to the width of the optical film extension 121, or can be greater than the width of the optical film extension 121. Since the colors of the side sealant 130 and the optical film 120 are the same, even if the edge of the side sealant 130 exceeds the edge of the optical film 120, the visual step sense is not obvious.

[0045] In some embodiments, the optical density value of the side sealant 130 ranges from 1.7 to 2.0, that is, the side sealant 130 has a light shielding effect to prevent light leakage from the side of the display panel 110. The optical density value of the UV glue can be increased by adding light shielding components, such as black light shielding particles, black pigments, etc., to the UV glue, so that the side sealant 130 also has a light shielding effect. The optical density value range of the side sealant 130 can be specifically set to 1.7, 1.8, 1.9 or 2.0, etc.

[0046] In some embodiments, see Figure 3 The display device 100 further includes a heat dissipation layer 140, which is disposed on a side of the display panel 110 away from the optical film 120, and the side sealant 130 covers the side of the heat dissipation layer 140. Since the light-emitting device of the display panel 110 generates heat during the continuous light emission process, the heat dissipation layer 140 disposed on the bottom surface of the display panel 110 can dissipate heat from the display panel 110 to ensure the performance and service life of the display panel 110. The side sealant 130 covers the side of the heat dissipation layer 140 to protect the heat dissipation layer 140. The material of the heat dissipation layer 140 can be a metal with good heat dissipation effect, such as aluminum (Al), and of course it can also be other heat dissipation materials, which are not specifically limited here.

[0047] In some embodiments, see Figure 3 The display device 100 further includes a support layer 150, which is disposed on a side of the heat dissipation layer 140 away from the display panel 110. The support layer 150 is used to support the display panel 110. The material of the support layer 150 may be a metal, such as an aluminum alloy, but is not limited thereto. Since the support layer 150 is assembled with the display panel 110 after the side sealant 130 is formed, the end of the side sealant 130 close to the support layer 150 contacts the side of the support layer 150 close to the heat dissipation layer 140, that is, the side sealant 130 only covers the side surfaces of the display panel 110 and the heat dissipation layer 140, and does not need to cover the side surfaces of the support layer 150.

[0048] In some embodiments, see Figure 3 The display device 100 further includes a back plate 160, which includes a bottom plate 161 and a side plate 162. The bottom plate 161 and the side plate 162 enclose a receiving cavity, and the optical film 120, the display panel 110, the heat dissipation layer 140 and the support layer 150 are arranged in the receiving cavity, and the side sealant 130 is located between the display panel 110 and the side plate 162. The back plate 160 is used to protect structures such as the optical film 120, the display panel 110, the heat dissipation layer 140, the support layer 150 and the side sealant 130. Further, the support layer 150 and the bottom plate 161 are connected and fixed by an adhesive layer 170, and the adhesive layer 170 can be an easy-to-pull adhesive, such as a reworkable double-sided tape, but is not limited thereto.

[0049] In some embodiments, the display device 100 further includes a control circuit board 210 and a flexible circuit board 220, and the control circuit board 210 and the flexible circuit board 220 are located at the binding end of the display panel 110. The control circuit board 210 is disposed on a side of the display panel 110 close to the bottom plate 161; the flexible circuit board 220 is electrically connected to the display panel 110 and the control circuit board 210, and a portion of the flexible circuit board 220 is located between the side plate 162 and the side wall of the display panel 110.

[0050] In the present application, the above side sealing glue 130 can be used at the non-binding end of the display panel 110 to improve the integrity of the screen surface. At the binding end of the display panel 110, since a flexible circuit board 220 is set, the following method can be used to further improve the integrity of the screen surface.

[0051] In some embodiments, the display device 100 further includes a first shading layer 230 , whose orthographic projection on the bottom plate 161 overlaps with the orthographic projection of a portion of the flexible circuit board 220 located between the side plate 162 and the side wall of the display panel 110 on the bottom plate 161 .

[0052] In the present application, by arranging the first light-shielding layer 230 on the side facing the flexible circuit board, and arranging the first light-shielding layer 230 to overlap with a portion of the flexible circuit board 220 located between the side plate 162 and the side wall of the display panel 110, the first light-shielding layer 230 can block the portion of the flexible circuit board 220 located between the side plate 162 and the side wall of the display panel 110, thereby further enhancing the integrity of the screen surface and improving the visual effect of the display device 100.

[0053] For details, please refer to Figure 5 The flexible circuit board 220 includes a first horizontal portion 221, a bent portion 222 and a second horizontal portion 223. The first horizontal portion 221 is electrically connected to the display panel 110, the second horizontal portion 223 is electrically connected to the control circuit board 210, and the bent portion 222 is located between the side plate 162 and the side wall of the display panel 110; wherein the orthographic projection of the first light shielding layer 230 on the bottom plate 161 overlaps the orthographic projection of the bent portion 222 on the bottom plate 161. By providing the first light shielding layer 230 to cover the bent portion 222, the first light shielding layer 230 can shield the bent portion 222, thereby enhancing the integrity of the screen surface and improving the visual effect of the display device 100.

[0054] In some embodiments, please refer to Figure 5, the surface of the first light shielding layer 230 close to the bottom plate 161 contacts the first horizontal portion 221. By setting the surface of the first light shielding layer 230 close to the bottom plate 161 in contact with the first horizontal portion 221, the first light shielding layer 230 can support the optical film 120, thereby reducing the risk of bending of the optical film 120.

[0055] In some embodiments, please refer to Figure 5 A spacing area B is provided between the side wall of the light-emitting device layer 112 on the side close to the first horizontal portion 221 and the side wall of the first horizontal portion 221 on the side close to the light-emitting device layer 112; the display device 100 also includes a second shading layer 240, and the second shading layer 240 is provided between the optical film 120 and the cover plate 113; the orthographic projection of the second shading layer 240 on the bottom plate 161 at least covers a part of the orthographic projection of the spacing area B on the bottom plate 161, and a part of the second shading layer 240 overlaps with a part of the light-emitting device layer 112. Since there is a spacing region B between the light emitting device layer 112 of the display device 100 and the flexible circuit board 220, that is, the spacing region B is provided between the side wall of the light emitting device layer 112 on the side close to the first horizontal portion 221 and the side wall of the first horizontal portion 221 on the side close to the light emitting device layer 112, the portion of the array substrate 111 corresponding to the spacing region B is not blocked, and there are a large number of metal wires on the portion of the array substrate 111 corresponding to the spacing region B, and a step structure is formed between the edge of the light emitting device layer 112 on the side close to the side plate 162 and the array substrate 111, resulting in poor integrity of the screen surface. Therefore, a second light shielding layer 240 is provided, and the second light shielding layer 240 covers the spacing region B, and a part of the second light shielding layer 240 overlaps with a part of the light emitting device layer 112, so that the second light shielding layer 240 can shield the metal wires on the array substrate 111 and reduce the reflection of the metal wires on the light, and on the other hand, the second light shielding layer 240 can shield the step structure, thereby further enhancing the integrity of the screen surface and improving the visual effect of the display device 100.

[0056] In some embodiments, the orthographic projection of the second shading layer 240 on the base plate 161 covers a portion of the orthographic projection of the spacing area B on the base plate 161, and the orthographic projection of the first shading layer 230 on the base plate 161 covers another portion of the orthographic projection of the spacing area B on the base plate 161.

[0057] In some embodiments, the orthographic projection of the second light shielding layer 240 on the bottom plate 161 completely covers the orthographic projection of the spacing area B on the bottom plate 161 .

[0058] In some embodiments, the material of the first light shielding layer 230 is different from the material of the second light shielding layer 240. Since the first light shielding layer 230 is located between the flexible circuit board 220 and the optical film 120, and the second light shielding layer 240 is located between the cover plate 113 and the optical film 120, there is a large gap between the flexible circuit board 220 and the optical film 120, and there is a small gap between the cover plate 113 and the optical film 120, so the first light shielding layer 230 needs to ensure a large thickness, and the second light shielding layer 240 needs to ensure a small thickness, so as to facilitate the production of the display device 100. Therefore, by setting the material of the first light shielding layer 230 to be different from the material of the second light shielding layer 240, the convenience of producing the display device 100 can be improved, and the difficulty of producing the display device 100 can be reduced.

[0059] The material of the first light shielding layer 230 includes black glue, and the material of the second light shielding layer 240 includes black ink.

[0060] In some embodiments, a portion of the second light shielding layer 240 close to the side plate 162 is connected to the first light shielding layer 230. By setting the portion of the second light shielding layer 240 close to the side plate 162 to be connected to the first light shielding layer 230, it is possible to avoid the problem that the shielding properties of the first light shielding layer 230 and the second light shielding layer 240 to the bending portion 222, the portion of the array substrate 111 corresponding to the spacing area B, and the step structure are reduced due to the gap between the second light shielding layer 240 and the first light shielding layer 230, thereby reducing the integrity of the display device 100.

[0061] In some embodiments, the product of the optical density of the first light shielding layer 230 and the thickness of the first light shielding layer 230 is equal to the product of the optical density of the second light shielding layer 240 and the thickness of the second light shielding layer 240. When the second light shielding layer 240 and the first light shielding layer 230 are made of different materials, there is a color difference between the first light shielding layer 230 and the second light shielding layer 240, resulting in a reduction in the integrity of the display device 100. Therefore, by setting the product of the optical density of the first light shielding layer 230 and the thickness of the first light shielding layer 230 to be equal to the product of the optical density of the second light shielding layer 240 and the thickness of the second light shielding layer 240, the color difference between the first light shielding layer 230 and the second light shielding layer 240 can be reduced, thereby avoiding a reduction in the integrity of the display device 100.

[0062] In some embodiments, the outer edge of the optical film 120 extends beyond the edge of the display panel 110 , and the orthographic projection of the portion of the first shading layer 230 extending beyond the edge of the display panel 110 on the bottom plate 161 overlaps with the orthographic projection of the first shading layer 230 on the bottom plate 161 .

[0063] In some embodiments, the surface of the first light shielding layer 230 away from the side plate 162 is an inclined surface or an arc surface.

[0064] In some embodiments, please refer to Figure 5 , the length a from the edge of the cover plate 113 on the side close to the side plate 162 to the edge of the optical film 120 on the side close to the side plate 162 is 1.6 mm to 2.1 mm. By setting the length a from the edge of the cover plate 113 on the side close to the side plate 162 to the edge of the optical film 120 on the side close to the side plate 162 to be 1.6 mm to 2.1 mm, on the one hand, it is ensured that the first light shielding layer 230 can completely block the bending portion 222 of the flexible circuit board 220, thereby ensuring the shielding effect of the first light shielding layer 230, and on the other hand, it can avoid the risk of the optical film 120 being warped and bent due to the length a being too long from the edge of the cover plate 113 on the side close to the side plate 162 to the edge of the optical film 120 on the side close to the side plate 162.

[0065] In some embodiments, please refer to Figure 5 , the edge of the optical film 120 on the side close to the side plate 162 is flush with the edge of the flexible circuit board 220 on the side close to the side plate 162, and the curvature radius of the bent portion 222 is not greater than 1 mm. By setting the curvature radius of the bent portion 222 to be not greater than 1 mm, the length a from the edge of the cover plate 113 on the side close to the side plate 162 to the edge of the optical film 120 on the side close to the side plate 162 can be minimized, thereby reducing the width of the frame of the display device 100.

[0066] In some embodiments, please refer to Figure 5 , the edge of the optical film 120 on the side close to the side plate 162 is flush with the edge of the flexible circuit board 220 on the side close to the side plate 162, and the thickness b of the flexible circuit board 220 is not greater than 50 μm. By setting the thickness b of the flexible circuit board 220 to be not greater than 50 μm, the flexible circuit board 220 can be bent to the maximum extent, thereby ensuring that the curvature radius of the bending portion 222 is minimized as much as possible, thereby reducing the length a from the edge of the cover plate 113 on the side close to the side plate 162 to the edge of the optical film 120 on the side close to the side plate 162, so as to reduce the width of the frame of the display device 100.

[0067] The present application provides a display device, which extends an optical film relative to the edge of a display panel by a certain distance so that the optical film covers the entire surface of the light-emitting side of the display panel, thereby avoiding a sense of step when viewing the display panel from the viewing side, improving the overall visual effect of the screen, and realizing screen surface integration; at the same time, by arranging a side sealant covering the side of the display panel on the peripheral side of the display panel, one end of the side sealant contacts the optical film to support the extended part of the optical film, thereby avoiding the extended part of the optical film from being broken, and at the same time, it can also block the invasion of water vapor. Therefore, the display device of the present application can realize screen surface integration, improve the overall visual effect of the screen, and reduce the risk of fragmentation.

[0068] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0069] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0071] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display device, characterized in that: include: Display panel; An optical film, arranged on the light-emitting side of the display panel; as well as A side sealant is disposed on the peripheral side of the display panel, and the side sealant covers at least a portion of the side surface of the display panel; The optical film covers the light-emitting side of the display panel and is arranged to extend outwardly relative to the edge of the display panel. The side sealant is located in a space formed by the display panel being retracted relative to the optical film and connects the optical film and the display panel.

2. The display device according to claim 1, characterized in that The extension distance of the optical film relative to the edge of the display panel is d1, and 0.2 mm≤d1≤0.5 mm.

3. The display device according to claim 2, characterized in that: 0.25mm≤d1≤0.35mm.

4. The display device according to claim 2, characterized in that: Along the thickness direction of the display panel, the side sealant has a first end and a second end opposite to each other, the first end is close to the optical film, and the thickness of the first end is d2, d2≤d1.

5. The display device according to claim 1, characterized in that The optical density value of the side sealant is in the range of 1.7 to 2.

0.

6. The display device according to claim 1, characterized in that: The color of the side sealing adhesive is the same as the color of the optical film.

7. The display device according to any one of claims 1 to 6, characterized in that: The optical film includes a polarizer.

8. The display device according to claim 1, characterized in that: The display device further comprises a heat dissipation layer, which is arranged on a side of the display panel away from the optical film, and the side sealing glue covers the side surface of the heat dissipation layer.

9. The display device according to claim 8, characterized in that: The display device further includes a supporting layer, which is arranged on a side of the heat dissipation layer away from the display panel, and an end of the side sealant close to the supporting layer contacts a side of the supporting layer close to the heat dissipation layer.

10. The display device according to claim 9, characterized in that: The display device further includes a back plate, the back plate includes a bottom plate and a side plate, the bottom plate and the side plate are combined to form a receiving cavity. The optical film, the display panel, the heat dissipation layer and the support layer are arranged in the accommodating cavity. The side sealing glue is located between the display panel and the side plate.

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