Display device

Abstract

The application relates to a display device, which comprises a display panel, an optical film and side sealant; the optical film is arranged on the light-emitting side of the display panel; the side sealant is arranged on the circumferential side of the display panel, and covers at least part of the side surface of the display panel; wherein the optical film covers the light-emitting side of the display panel and is arranged in extension relative to the edge of the display panel, the side sealant is located in the space formed by the inward shrinkage of the display panel relative to the optical film, and connects the optical film and the display panel. The display device of the application can realize screen surface integration, improve the overall visual effect of the screen and reduce the risk of fragmentation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] An organic light emitting diode (OLED) display device includes a display panel and an optical film sheet, such as a polarizing sheet, located at the light-emitting side of the display panel. Currently, the polarizing sheet of the OLED display device is usually designed to be recessed in the display panel to avoid problems such as folding and water vapor intrusion caused by the fact that the polarizing sheet exceeds the edge of the display panel due to the precision of the bonding process. However, the design of recessing the polarizing sheet in the display panel has some disadvantages: for example, the screen integration is poor, there is a step feeling between the polarizing sheet and the edge of the display panel, and the overall sensory effect of the screen is poor; for another example, due to the precision limitation of the polarizing sheet bonding process, there is a difference between the actual recessed values of the polarizing sheet on the left and right, resulting in poor visual effect; and in the process of installation, the installation mechanism directly contacts the display panel, resulting in a high risk of breakage. SUMMARY

[0003] Embodiments of the present application provide a display device, which can realize screen surface integration, improve the overall visual effect of the screen, and reduce the risk of breakage.

[0004] The present application provides a display device, which includes:

[0005] a display panel;

[0006] an optical film sheet disposed at the light-emitting side of the display panel; and

[0007] a side sealant disposed at the peripheral side of the display panel, and covering at least part of the side surface of the display panel;

[0008] wherein the optical film sheet covers the light-emitting side of the display panel and is disposed in extension relative to the edge of the display panel, the side sealant is located in a space formed by the recessing of the display panel relative to the optical film sheet, and connects the optical film sheet and the display panel.

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

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

[0011] In some embodiments, the side sealant has opposite first and second ends along the thickness direction of the display panel, 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 value 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 that 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 disposed on a side of the display panel away from the optical film, and the side sealant covers a side surface of the heat dissipation layer.

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

[0017] In some embodiments, the display device further includes a back plate including a bottom plate and a side plate, the bottom plate and the side plate enclosing a receiving cavity, the optical film, the display panel, the heat dissipation layer, and the support layer being disposed in the receiving cavity, and the side sealant being located between the display panel and the side plate.

[0018] The display device provided by the present application can cover the entire surface of the light-emitting side of the display panel by extending the optical film a certain distance relative to the edge of the display panel, so as to avoid the step feeling when viewing the display panel from the viewing side, improve the overall visual effect of the screen, and realize the integration of the screen surface. Meanwhile, the side sealant covering the side of the display panel is arranged on the peripheral side of the display panel, one end of the side sealant is in contact with the optical film to support the extended part of the optical film, so as to avoid the damage of the extended part of the optical film, and the side sealant can also block the invasion of water vapor. Therefore, the display device provided by the present application can realize the integration of the screen surface, improve the overall visual effect of the screen, and reduce the risk of breakage. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] For a more complete understanding of the present application and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings in which like reference numerals represent like parts:

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

[0022] Figure 2 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 by 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 is a cross-sectional view of another display device provided by an embodiment of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 100, display device; 110, display panel; 111, array substrate; 112, light emitting device layer; 113, cover plate; 114, encapsulation adhesive; 120, optical film; 121, optical film extension; 130, side encapsulation adhesive; 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 light shielding layer; 240, second light shielding layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative effort fall within the protection scope of the present application.

[0029] Please refer to Figures 1-2 , Figure 1 is a cross-sectional view of a display device provided by the related art, Figure 2 is a partial top view of a display device provided by the related art. Please refer to Figure 1The display device includes a display panel 110 and an optical film 120 located on the light-out side of the display panel 110. The optical film 120 may, for example, be a polarizing film. The optical film 120 is recessed inward from the edge of the display panel 110. The recessed distance of the optical film 120 relative to the edge of the display panel 110 is d0, for example, d0=0.5mm. Please refer to Figure 2 As can be seen from the top view of the display device 100, when the optical film 120 is recessed inward from the edge of the display panel 110, there is a clear step at the edge of the optical film 120 and the edge of the display panel 110, and the screen integration visual effect is poor. In addition, the existing optical film 120 is usually attached to the light-out side of the display panel 110 by a lamination process after cutting. The precision of the lamination process is usually ±0.3mm, which has a large error and can cause a significant difference in the recessed distance of the optical film 120 on the two sides, resulting in a poor overall visual effect. In addition, during the installation process, the edge of the upper surface of the display panel 110 is exposed and is easy to directly contact with the installation mechanism, thereby causing a high risk of breakage.

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

[0031] The display panel 110 can be an OLED display panel, and the display panel 110 includes an array substrate 111 and a cover plate 113 arranged oppositely, a light-emitting device layer 112 between the array substrate 111 and the cover plate 113, and an encapsulating glue 114 between the array substrate 111 and the cover plate 113 and surrounding the light-emitting device layer 112. 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 outwardly relative to an edge of the cover plate 113 by a certain distance. 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 can be glass, but are not limited thereto. The light-emitting device layer 112 includes arrayed light-emitting devices, such as at least one of a red light-emitting device, a green light-emitting device, and a blue light-emitting device. Specifically, the light-emitting device includes an anode, a light-emitting functional layer, and a cathode arranged 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 by the same cutting process. The encapsulating glue 114 can be flush with the edge of the array substrate 111, or the encapsulating glue 114 can be inwardly recessed from the edge of the array substrate 111.

[0033] The side encapsulating glue 130 covers the side of the display panel 110, that is, the side encapsulating glue 130 covers the side of the array substrate 111, the side of the encapsulating glue 114, and the side of the cover plate 113. The material of the side encapsulating glue 130 can be ultraviolet curing glue (UV glue). The UV glue is coated on the side surface of the display panel 110, and the coated UV glue is cured by ultraviolet light to make the UV glue adhere to the side of the display panel 110 and form a fixed shape. The end of the side encapsulating glue 130 close to the optical film 120 is in contact with the side of the optical film 120 close to the display panel 110 to support the optical film extension 121 of the optical film 120, wherein the optical film extension 121 refers to the part of the optical film 120 protruding from the edge of the display panel 110.

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

[0035] In the present application, please refer to Figure 4 , Figure 4 is a partial top view of a display device 100 provided by an embodiment of the present application. The optical film 120 covers the light-emitting side of the display panel 110 and extends outwardly relative to the edge of the display panel 110 by a certain distance, so that the optical film 120 covers the entire surface of the display panel 110, which can avoid the step feeling on the screen surface and realize the integration of the screen surface, and at the same time, avoid the breakage problem caused by the direct contact between the mounting mechanism and the display panel 110. Please refer to Figure 3The application also sets a side sealant 130 on the side of the display panel 110, one end of the side sealant 130 is in contact with the optical film 120 to support the optical film extension 121, avoid the optical film extension 121 from being damaged by hanging, and also can block the invasion of water vapor.

[0036] In the 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 fitting accuracy, cutting accuracy and the like of the optical film 120. By making the edge of the optical film 120 exceed the edge of the display panel 110 by a certain distance, it is ensured that in the fitting process of the optical film 120, under the influence of fitting errors, the optical film 120 can still cover the entire surface of the light-emitting side of the display panel 110, thereby avoiding the influence of the fitting accuracy of the optical film 120, resulting in a step feeling on the screen surface.

[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 fitting process is usually ±0.3mm, making the extension distance d1 equal to 0.3mm, which can avoid the influence of the fitting accuracy of the optical film 120, resulting in a step feeling on the screen surface. Alternatively, in 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, cutting the optical film 120 by laser cutting can improve the precision of the overall size of the display device 100, further improving 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 edge of the optical film 120 is 3 mm beyond the edge of the display panel 110. For example, the display panel 110 includes multiple side edges, and the distance between the edge of the optical film 120 and the edge of the display panel 110 on the same side of the display panel 110 is 3 mm. Then, the edges of the optical film 120 are cut by laser cutting. After cutting, the distance between the edge of the optical film 120 and the edge of the display panel 110 on the same side is about 0.3 mm. Since the precision of the laser cutting process is usually ±0.05 mm, the distance between the edge of the optical film 120 and the edge of the display panel 110 on the same side is within the range of 0.3 mm ±0.05 mm, i.e., 0.25 mm≤d1≤0.35 mm. By first attaching the optical film 120 and then cutting the edge of the optical film 120 by laser cutting, the consistency of the extension distance d1 of the edges of the optical film 120 can be improved, and the attachment precision of the optical film 120 relative to the display panel 110 can be improved, and the precision of the overall size of the display device 100 can be improved.

[0039] In some embodiments, the side sealant 130 has opposite first and second ends 131 and 132 along the thickness direction of the display panel 110, i.e., the Y direction. The first end 131 is close to the optical film 120 and in contact with the optical film extension 121 to support the optical film extension 121. The thickness of the first end 131 along the direction parallel to the display panel 110, i.e., the X direction, is d2, and 0.2 mm≤d2≤0.5 mm. For example, the thickness of the first end 131 can be set to 0.2 mm, 0.24 mm, 0.28 mm, 0.30 mm, 0.34 mm, 0.38 mm, 0.4 mm, 0.44 mm, 0.48 mm, or 0.5 mm, 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, i.e., d2≤d1. Here, 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, and 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, which is equal to the extension distance d1. In this embodiment, d2≤d1, which can ensure the supporting effect of the side sealant 130 on the optical film extension 121 and avoid the formation of a step on the edge of the optical film 120, thereby avoiding the visual step effect.

[0041] In some embodiments, the thickness of the first end 131 can be greater than the thickness of the second end 132. Since the display panel 110 is recessed from 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 glue is liquid. Due to the flowability and surface tension of the glue and other factors, 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, thereby ensuring the supporting effect of the first end 131 on the optical film extension 121, effectively blocking the invasion of water vapor, and better transitioning from the first end 131 to the second end 132 of the side sealant 130, so that the side sealant 130 closely adheres to the side of the display panel 110.

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

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

[0044] When the color of the side sealant 130 is the same as the color 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 greater than the width of the optical film extension 121. Since the color of the side sealant 130 is consistent with the color of the optical film 120, even if the edge of the side sealant 130 exceeds the edge of the optical film 120, the visual step effect is not obvious.

[0045] In some embodiments, the optical density value of the side sealing glue 130 ranges from 1.7 to 2.0, that is, the side sealing glue 130 has a light shielding effect to avoid light leakage from the side of the display panel 110. The optical density value of the UV glue can be increased by adding a light shielding component, such as black light shielding particles, black pigment, etc., to the UV glue, so that the side sealing glue 130 has a light shielding effect. The optical density value of the side sealing glue 130 may, for example, be specifically set to 1.7, 1.8, 1.9, or 2.0, etc.

[0046] In some embodiments, referring to Figure 3 , the display device 100 further comprises a heat dissipation layer 140, which is arranged on the side of the display panel 110 away from the optical film 120, and the side sealing glue 130 covers the side of the heat dissipation layer 140. Since the light emitting device of the display panel 110 generates heat during continuous light emission, the heat dissipation layer 140 arranged 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 sealing glue 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), but can also be other heat dissipation materials, which are not limited here.

[0047] In some embodiments, referring to Figure 3 , the display device 100 further comprises a support layer 150, which is arranged on the side of the heat dissipation layer 140 away from the display panel 110, and the support layer 150 is used to support the display panel 110. The material of the support layer 150 can be a metal, such as an aluminum alloy, but is not limited to this. Since the support layer 150 is assembled with the display panel 110 after the side sealing glue 130 is formed, the end of the side sealing glue 130 close to the support layer 150 is in contact with the side of the support layer 150 close to the heat dissipation layer 140, that is, the side sealing glue 130 only covers the sides of the display panel 110 and the heat dissipation layer 140, and does not need to cover the side of the support layer 150.

[0048] In some embodiments, referring to Figure 3 , the display device 100 further comprises a back plate 160, which comprises a bottom plate 161 and a side plate 162. The bottom plate 161 and the side plate 162 form an accommodation cavity, and the optical film 120, the display panel 110, the heat dissipation layer 140, and the support layer 150 are arranged in the accommodation cavity. The side sealing glue 130 is located between the display panel 110 and the side plate 162. The back plate 160 is used to protect the structures such as the optical film 120, the display panel 110, the heat dissipation layer 140, the support layer 150, and the side sealing glue 130. Further, the support layer 150 and the bottom plate 161 are connected and fixed by an adhesive layer 170, which can be a peelable adhesive, such as a double-sided adhesive tape that can be reworked, but is not limited to this.

[0049] In some embodiments, the display device 100 further comprises a control circuit board 210 and a flexible circuit board 220, 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 arranged at the side of the display panel 110 close to the bottom plate 161; the flexible circuit board 220 is electrically connected with the display panel 110 and the control circuit board 210, and a part 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 to improve the integrity of the screen surface at the non-binding end of the display panel 110, and the following method can be used to further improve the integrity of the screen surface at the binding end of the display panel 110 due to the arrangement of the flexible circuit board 220.

[0051] In some embodiments, the display device 100 further comprises a first light shielding layer 230, and the orthogonal projection of the first light shielding layer 230 on the bottom plate 161 overlaps with the orthogonal projection of the part of the flexible circuit board 220 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 the part of the flexible circuit board 220 between the side plate 162 and the side wall of the display panel 110, the first light shielding layer 230 can shield the part of the flexible circuit board 220 between the side plate 162 and the side wall of the display panel 110, further enhancing the integrity of the screen surface and improving the visual effect of the display device 100.

[0053] Specifically, please refer to Figure 5 , the flexible circuit board 220 comprises a first horizontal part 221, a bending part 222 and a second horizontal part 223, the first horizontal part 221 is electrically connected with the display panel 110, the second horizontal part 223 is electrically connected with the control circuit board 210, and the bending part 222 is located between the side plate 162 and the side wall of the display panel 110; wherein the orthogonal projection of the first light shielding layer 230 on the bottom plate 161 overlaps with the orthogonal projection of the bending part 222 on the bottom plate 161. By arranging the first light shielding layer 230 to cover the bending part 222, the first light shielding layer 230 can shield the bending part 222, enhance the integrity of the screen surface and improve the visual effect of the display device 100.

[0054] In some embodiments, please refer to Figure 5The surface of the first light-shielding layer 230 close to the side of the bottom plate 161 is in contact with the first horizontal part 221. By setting the surface of the first light-shielding layer 230 close to the side of the bottom plate 161 to be in contact with the first horizontal part 221, the first light-shielding layer 230 can support the optical film 120, thereby reducing the risk of the optical film 120 being bent.

[0055] In some embodiments, referring to Figure 5 The side wall of the light-emitting device layer 112 close to the side of the first horizontal part 221 is provided with a spacing area B between the side wall of the first horizontal part 221 close to the light-emitting device layer 112. The display device 100 further comprises a second light-shielding layer 240 provided between the optical film 120 and the cover plate 113. The orthographic projection of the second light-shielding layer 240 on the bottom plate 161 covers at least part of the orthographic projection of the spacing area B on the bottom plate 161, and part of the second light-shielding layer 240 overlaps part of the light-emitting device layer 112. Since there is a spacing area B between the light-emitting device layer 112 and the flexible circuit board 220 of the display device 100, i.e., the side wall of the light-emitting device layer 112 close to the side of the first horizontal part 221 is provided with a spacing area B between the side wall of the first horizontal part 221 close to the light-emitting device layer 112, the part of the array substrate 111 corresponding to the spacing area B is not shielded, while there are a large number of metal lines on the array substrate 111 corresponding to the spacing area B. At the same time, a step structure is also formed between the edge of the light-emitting device layer 112 close to the side plate 162 and the array substrate 111, resulting in poor integrity of the screen surface. Therefore, the second light-shielding layer 240 is provided, and the second light-shielding layer 240 covers the spacing area B, and part of the second light-shielding layer 240 overlaps part of the light-emitting device layer 112. On the one hand, the second light-shielding layer 240 can shield the metal lines on the array substrate 111, reducing the reflection of the metal lines on the light rays. 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 light-shielding layer 240 on the bottom plate 161 covers part of the orthographic projection of the spacing area B on the bottom plate 161, and the orthographic projection of the first light-shielding layer 230 on the bottom plate 161 covers another part of the orthographic projection of the spacing area B on the bottom 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, the flexible circuit board 220 and the optical film 120 have a large spacing therebetween, and the cover plate 113 and the optical film 120 have a small spacing therebetween, so that 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 production difficulty of the display device 100 can be reduced.

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

[0060] In some embodiments, the portion of the second light shielding layer 240 close to one side of the side plate 162 is connected with the first light shielding layer 230. By setting the portion of the second light shielding layer 240 close to one side of the side plate 162 to be connected with the first light shielding layer 230, the problem that the shielding property of the first light shielding layer 230 and the second light shielding layer 240 to the portion of the array substrate 111 corresponding to the bending portion 222 and the spacing area B and the step structure is reduced due to the gap between the second light shielding layer 240 and the first light shielding layer 230, and the integration of the display device 100 is reduced, can be avoided.

[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 materials of the second light shielding layer 240 and the first light shielding layer 230 are different, there is a color difference between the first light shielding layer 230 and the second light shielding layer 240, which reduces the integration 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, so that the integration of the display device 100 can be avoided to be reduced.

[0062] In some embodiments, the outer edge of the optical film 120 exceeds the edge of the display panel 110, and the orthographic projection of the portion of the first light shielding layer 230 exceeding the edge of the display panel 110 on the bottom plate 161 overlaps with the orthographic projection of the first light shielding layer 230 on the bottom plate 161.

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

[0064] In some embodiments, referring to Figure 5 The length a from the edge of the cover plate 113 close to one side of the side plate 162 to the edge of the optical film 120 close to one side of the side plate 162 is 1.6mm-2.1mm. By setting the length a from the edge of the cover plate 113 close to one side of the side plate 162 to the edge of the optical film 120 close to one side of the side plate 162 to be 1.6mm-2.1mm, on the one hand, it ensures that the first light shielding layer 230 can completely shield the bending part 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 from the edge of the cover plate 113 close to one side of the side plate 162 to the edge of the optical film 120 close to one side of the side plate 162 being too long.

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

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

[0067] The display device provided by the present application can realize screen surface integration, improve the overall visual effect of the screen, and reduce the risk of breakage.

[0068] In the description of the present application, the terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0069] In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

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

[0071] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A display device, characterized in that, include: Display panel, including both bound and unbound ends; An optical film is disposed on the light-emitting side of the display panel; as well as Side sealant is disposed on the periphery of the display panel and located at the non-bonding end, the side sealant covering at least a portion of the side surface of the display panel; wherein, the optical film covers the light-emitting side of the display panel and is disposed extending outward relative to the edge of the display panel, the side sealant being located within the space formed by the inward retraction of the display panel relative to the optical film, and connecting the optical film and the display panel; A flexible circuit board is disposed at the bonding end and bonded to the bonding end; The backplate includes a bottom plate and a side plate, the bottom plate and the side plate forming a receiving cavity, and the optical film, the display panel, the flexible circuit board and the side sealant are disposed within the receiving cavity; A first light-shielding layer is disposed on the side of the optical film facing the flexible circuit board. The orthographic projection of the first light-shielding layer on the base plate overlaps with the orthographic projection of the portion of the flexible circuit board located between the side plate and the side wall of the display panel on the base plate.

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

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 being close to the optical film, and the thickness of the first end being d2, where d2≤d1.

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

0.

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

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

8. The display device according to claim 1, characterized in that, The display device further includes a heat dissipation layer disposed on the side of the display panel away from the optical film, and the side sealant covers the side of the heat dissipation layer.

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

10. The display device according to claim 9, characterized in that, The heat dissipation layer and the support layer are disposed within the receiving cavity, and the side sealant is located between the display panel and the side plate.

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