Laminating strip and display device

Abstract

The utility model discloses a kind of pressing film strips and display devices, it is related to liquid crystal display technical field, wherein, pressing film strip includes bonding strip part and pressing film strip part.Bonding strip part has the first side end and second side end of its thickness direction relative arrangement, first side end is used to be bonded in the groove bottom wall of backplate groove formed in display device.Pressing film strip part's width direction one end is connected to second side end, to hold optical film piece in display device is pressed.In bonding strip part is installed in the groove bottom wall of backplate groove, by jig from first side end holding bonding strip part, so that part of bonding strip part is bonded in the groove bottom wall of backplate groove;Then along the length direction of bonding strip part moves jig, so that bonding strip part is bonded in the groove bottom wall of backplate groove entirely, installation to pressing film strip is completed.Pressing film strip part can be avoided to be extruded, pressing film strip part can be avoided to leak in television picture visual area, guarantee display effect.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and in particular to a pressure strip and a display device. Background Technology

[0002] Common display devices, such as LCD TVs, often use sheet metal back panels to bend and form bent walls. The LCD glass is then glued and fixed to the outer side of the bent wall. A back panel groove is formed between the inner side of the bent wall and the sheet metal back panel, and part of the diaphragm is assembled into the back panel groove. Since the space inside the back panel groove is limited, it is difficult to design a structure for hanging the diaphragm. Therefore, a pressure strip is often glued to the inner side of the bent wall and pressed onto the diaphragm to limit the movement of the diaphragm.

[0003] When installing the pressure strip, it is often necessary to attach the pressure strip to the inside of the bent wall, then place a fixture (such as a pressure rod) in the back plate groove, positioning the fixture on the side of the pressure strip away from the bent wall; then, the fixture is pressed against the pressure strip and moved along the length of the pressure strip, pressing the pressure strip against the bent wall, thus completing the bonding and fixing between the pressure strip and the bent wall. However, when the pressure strip is under pressure, it is prone to leaking out and entering the visible area of ​​the television screen, affecting the display effect. Utility Model Content

[0004] The main purpose of this invention is to provide a pressure strip and a display device to ensure display quality.

[0005] To achieve the above objectives, the present invention provides a pressure strip for use in a display device, the pressure strip comprising:

[0006] The adhesive strip portion has a first side end and a second side end disposed opposite each other in its thickness direction, the first side end being used to adhere to the bottom wall of a backplate groove formed in the display device; and,

[0007] The pressure strip has a length direction that is consistent with the length direction of the adhesive strip, and the width direction of the pressure strip intersects with the width direction of the adhesive strip. One end of the pressure strip in the width direction is located at the second side end for pressing the optical film disposed in the display device.

[0008] In one embodiment, the included angle A between the width direction of the adhesive strip and the width direction of the film pressing strip is set to an obtuse angle.

[0009] In one embodiment, 92° ≤ A ≤ 98°; and / or,

[0010] The thickness of one end of the pressure strip that connects to the adhesive strip is partially reduced.

[0011] In one embodiment, the minimum thickness of the end of the pressure strip that connects to the adhesive strip is B1, and 0.3mm≤B1≤0.4mm.

[0012] In one embodiment, the pressure strip portion includes a strip body and a pressure protrusion, one end of the strip body in the width direction is connected to the adhesive strip portion, and the pressure protrusion is disposed at the other end of the strip body in the width direction and extends along the thickness direction of the strip body;

[0013] The pressure protrusion has a pressure surface facing away from the strip body, used to press the optical film in the display device.

[0014] In one embodiment, the free end of the pressure-film protrusion, facing away from the adhesive strip portion, is at least partially configured as a guide slope. Along a direction away from the strip body, the guide slope gradually approaches the adhesive strip portion, and an arc-shaped connecting surface is provided between the guide slope and the pressure-film surface; and / or,

[0015] The pressure-pressing protrusion is provided with reinforcing ribs, which extend along the thickness direction of the pressure-pressing strip.

[0016] In one embodiment, the pressure strip further includes a support strip portion connected to the second side end, the support strip portion and the pressure strip portion being spaced apart in the width direction of the adhesive strip portion; and / or,

[0017] The thickness of the adhesive strip is B2, and 0.4mm≤B2≤0.6mm.

[0018] This utility model also proposes a display device, including a back plate, an optical film and a pressing strip, wherein the back plate is formed with a back plate groove;

[0019] The back plate groove has a bottom wall and two inner side walls disposed on both sides of the bottom wall. The length direction of the pressing strip, the adhesive strip and the back plate groove are consistent. The width direction of the adhesive strip is consistent with the width direction of the back plate groove. The thickness direction of the adhesive strip is consistent with the opening direction of the back plate groove.

[0020] Both the pressure strip and the optical film are located in the back plate groove. The adhesive strip is bonded to the bottom wall of the back plate groove. One end of the pressure strip in the thickness direction abuts against the inner side wall of the back plate groove, and the other end is pressed against the optical film.

[0021] The pressure strip includes:

[0022] The adhesive strip portion has a first side end and a second side end disposed opposite each other in its thickness direction, the first side end being used to adhere to the bottom wall of a backplate groove formed in the display device; and,

[0023] The pressing strip has a length direction that is consistent with the length direction of the adhesive strip, and the width direction of the pressing strip intersects with the width direction of the adhesive strip. One end of the pressing strip in the width direction is located at the second side end to press the optical film disposed in the display device.

[0024] In one embodiment, the difference between the width of the backplate groove and the width of the adhesive strip is L, and 0.2mm ≤ L ≤ 0.4mm; and / or,

[0025] Double-sided adhesive is provided between the adhesive strip and the bottom wall of the back plate groove.

[0026] In one embodiment, the display device includes a liquid crystal television.

[0027] In this invention, when installing the adhesive strip onto the bottom wall of the backplate groove, a fixture is used to press the adhesive strip from the first side end, causing a portion of the adhesive strip to adhere to the bottom wall of the backplate groove. Then, the fixture is moved along the length of the adhesive strip, allowing the entire adhesive strip to adhere to the bottom wall of the backplate groove, thus completing the installation of the pressure strip. During the installation process, the pressure strip is protected from compression and from being exposed in the viewing area of ​​the television screen, ensuring optimal display quality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the pressure strip provided by this utility model;

[0030] Figure 2 This is a schematic diagram of another embodiment of the pressure strip provided by this utility model;

[0031] Figure 3 A schematic diagram of the structure of an embodiment of the display device provided by this utility model;

[0032] Figure 4 for Figure 3 A schematic diagram of the structure during the installation of the pressure strip;

[0033] Figure 5This is a schematic diagram of another embodiment of the display device provided by this utility model.

[0034] Explanation of icon numbers:

[0035] 100. Film pressing strip; 1. Adhesive strip part; 11. First side end; 12. Second side end; 2. Film pressing strip part; 21. Strip body; 22. Film pressing protrusion; 221. Film pressing surface; 222. Guide slope; 223. Arc-shaped connecting surface; 3. Supporting strip part;

[0036] 200. Display device; 4. Back panel; 41. Back panel groove; 5. Optical film; 6. Double-sided adhesive; 7. Diffuser plate; 8. Reflective sheet; 9. Foam adhesive; 91. Liquid crystal glass.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] Common display devices, such as LCD TVs, often use sheet metal back panels to bend and form bent walls. The LCD glass is then glued and fixed to the outer side of the bent wall. A back panel groove is formed between the inner side of the bent wall and the sheet metal back panel, and part of the diaphragm is assembled into the back panel groove. Since the space inside the back panel groove is limited, it is difficult to design a structure for hanging the diaphragm. Therefore, a pressure strip is often glued to the inner side of the bent wall and pressed onto the diaphragm to limit the movement of the diaphragm.

[0042] When installing the pressure strip, it is often necessary to attach the pressure strip to the inside of the bent wall, then place a fixture (such as a pressure rod) in the back plate groove, positioning the fixture on the side of the pressure strip away from the bent wall; then, the fixture is pressed against the pressure strip and moved along the length of the pressure strip, pressing the pressure strip onto the bent wall, thus completing the bonding and fixing between the pressure strip and the bent wall. When the pressure strip is compressed, it is prone to leaking out and entering the visible area of ​​the television screen, affecting the display effect. Furthermore, during the bonding process, if the pressure strip shifts, it is also prone to leaking out and entering the visible area of ​​the television screen.

[0043] This utility model proposes a pressure strip.

[0044] Please see Figure 1 In one embodiment of this utility model, the pressure strip 100 includes an adhesive strip portion 1 and a pressure strip portion 2. The adhesive strip portion 1 has a first side end 11 and a second side end 12 disposed opposite each other in its thickness direction. The first side end 11 is used to adhere to the bottom wall of the back plate groove 41 formed in the display device 200. The length direction of the pressure strip portion 2 is consistent with that of the adhesive strip portion 1, and the width direction of the pressure strip portion 2 intersects with that of the adhesive strip portion 1. One end of the pressure strip portion 2 in its width direction is disposed at the second side end 12 for pressing and holding the optical film 5 disposed in the display device 200.

[0045] In the technical solution of this utility model, when installing the adhesive strip 1 onto the bottom wall of the back plate groove 41, it is only necessary to use a jig to press the adhesive strip 1 from the first side end 11, so that part of the adhesive strip 1 is adhered to the bottom wall of the back plate groove 41; then, by moving the jig along the length direction of the adhesive strip 1, the entire adhesive strip 1 can be adhered to the bottom wall of the back plate groove 41, thus completing the installation of the pressure strip 100. During the installation of the pressure strip 100, the pressure strip 2 can be prevented from being squeezed, and the pressure strip 2 can be prevented from being exposed in the viewing area of ​​the television screen, thus ensuring the display effect.

[0046] The adhesive strip 1 and the pressure film strip 2 are integrally connected, ensuring the connection strength between them. The adhesive strip 1 and the pressure film strip 2 are aligned in length and extend along the length of the backing plate groove 41. Both the adhesive strip 1 and the pressure film strip 2 can be made of polycarbonate. The backing plate groove 41 is formed by bending a backing plate 4. The backing plate groove 41 has two opposing side walls that are parallel to each other, such that the width of the backing plate groove 41 is equal to the width of its bottom wall. The width of the adhesive strip 1 is smaller than the width of the backing plate groove 41, facilitating its installation within the groove. The first side end 11 can be adhered to the bottom wall of the backing plate groove 41 using glue or double-sided tape 6, which is not limited here.

[0047] In one embodiment of this invention, the thickness of the adhesive strip 1 is B2, and 0.4mm ≤ B2 ≤ 0.6mm. By limiting the thickness of the adhesive strip 1, the adhesive strip 1 can provide space for the expansion of the optical film 5.

[0048] The value of B2 can be any value among 0.4mm, 0.45mm, 0.5mm, 0.55mm and 0.6mm, and the value of B2 can also be any value between 0.4mm and 0.6mm, without limitation.

[0049] In one embodiment of this utility model, the angle A between the width direction of the adhesive strip 1 and the width direction of the pressing strip 2 is set to an obtuse angle. By setting the adhesive strip 1 and the pressing strip 2 to an obtuse angle, the size of the pressing strip 100 is increased along the width direction of the adhesive strip 1. When the pressing strip 100 is installed in the back plate groove 41, the pressing strip 2 abuts against one inner wall of the back plate groove 41, the adhesive strip 1 abuts against the other inner wall of the back plate groove 41, and the pressing strip 100 abuts against two opposite inner walls of the back plate groove 41, reducing the gap between the pressing strip 100 and the inner wall of the back plate groove 41, and preventing the optical film 5 from being inserted between the adhesive strip 1 and the inner wall of the back plate groove 41.

[0050] When the pressure strip 100 is installed in the back plate groove 41, the pressure strip 2 can deform naturally to facilitate the insertion of the pressure strip 100 into the back plate groove 41. When the pressure strip 2 deforms, it abuts against one inner sidewall of the back plate groove 41 and applies pressure to the adhesive strip 1 so that the adhesive strip 1 abuts against the other inner sidewall of the back plate groove 41.

[0051] 92° ≤ A ≤ 98°. The value of A can be any endpoint value among 92°, 93°, 94°, 95°, 96°, 97°, and 98°. The value of A can also be any value between any two adjacent values ​​among 92°, 93°, 94°, 95°, 96°, 97°, and 98°; there are no restrictions here. Specifically, the value of A is 95°.

[0052] In one embodiment of this utility model, the thickness of one end of the pressing strip 2 connected to the adhesive strip 1 is partially reduced. When the pressing strip 2 undergoes elastic deformation, the deformation of the pressing strip 2 can be easily controlled at the end where it connects to the adhesive strip 1. The pressing strip 2 can be thinned at either end in the thickness direction, or it can be thinned at both ends simultaneously in the thickness direction; this is not limited here. The thinning of the pressing strip 2 can be formed by subsequent cutting processing, or it can be integrally formed during the forming of the pressing strip 2; this is not limited here.

[0053] The minimum thickness of the end of the film-pressing strip 2 connected to the adhesive strip 1 is B1, and 0.3mm ≤ B1 ≤ 0.4mm. The value of B1 can be any endpoint value among 0.3mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.36mm, 0.37mm, 0.38mm, 0.39mm, and 0.4mm. B1 can also be any value between any two adjacent values ​​among 0.3mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.36mm, 0.37mm, 0.38mm, 0.39mm, and 0.4mm; no limitation is made here. Specifically, the value of B1 is 0.35mm.

[0054] Please see Figure 1 In one embodiment of the present invention, the pressing strip 2 includes a strip body 21 and a pressing protrusion 22. One end of the strip body 21 in the width direction is connected to the adhesive strip 1, and the pressing protrusion 22 is disposed at the other end of the strip body 21 in the width direction and extends along the thickness direction of the strip body 21. The pressing protrusion 22 has a pressing surface 221 facing away from the strip body 21 for pressing the optical film 5 in the display device 200.

[0055] By providing the pressing protrusion 22, the pressing strip 2 can effectively hold the optical film 5, while also reducing the thickness of the strip body 21 to ensure its elastic deformation; this also reduces the volume and cost of the pressing strip 2. The strip body 21 and the pressing protrusion 22 can be integrally connected or detachably connected, such as by bonding, which is not limited here. Specifically, the strip body 21 and the pressing protrusion 22 are integrally connected.

[0056] In one embodiment of the present invention, the free end of the pressing protrusion 22 facing away from the adhesive strip portion 1 is at least partially configured as a guide slope 222. Along the direction away from the strip body 21, the guide slope 222 is gradually positioned closer to the adhesive strip portion 1, and an arc-shaped connecting surface 223 is provided between the guide slope 222 and the pressing surface 221.

[0057] After the pressure strip 100 is installed in the back plate groove 41, and the optical film 5 is inserted into the back plate groove 41, the guide slope 222 and the arc-shaped connecting surface 223 cooperate to guide the optical film 5, making it easier to insert the optical film 5 into the back plate groove 41. When the optical film 5 is inserted into the back plate groove 41, the arc-shaped connecting surface 223 can contact the optical film 5, reducing scratches on the optical film 5.

[0058] In one embodiment of this utility model, the pressing protrusion 22 is provided with reinforcing ribs, which extend along the thickness direction of the pressing strip 2. By providing the reinforcing ribs, the structural strength of the pressing protrusion 22 in the thickness direction of the pressing strip 2 can be enhanced, ensuring the pressing effect of the pressing protrusion 22 on the optical film 5.

[0059] The reinforcing ribs can be reinforcing strips disposed on the pressing protrusion 22. The reinforcing ribs can be disposed inside the pressing protrusion 22 or outside the pressing protrusion 22, whether the pressing protrusion 22 is close to or far from either side of the adhesive strip portion 1; this is not limited here. Multiple reinforcing ribs are spaced apart along the length of the pressing strip 100, ensuring the strength of the pressing protrusion 22.

[0060] Please see Figure 2In one embodiment of this utility model, the pressure strip 100 further includes a support strip 3, which is connected to the second side end 12. The support strip 3 and the pressure strip 2 are spaced apart in the width direction of the adhesive strip 1. By providing the support strip 3, the diffuser plate 7 and the optical film 5 installed in the back plate groove 41 can be supported.

[0061] The supporting strip 3 and the adhesive strip 1 can be integrally connected or detachably connected; if they are adhesively connected, no limitation is made here. Specifically, the supporting strip 3 and the adhesive strip 1 are integrally connected.

[0062] Please see Figure 3 and Figure 4 The present invention also proposes a display device 200, which includes a plate, an optical film 5 and a pressing strip 100. The specific structure of the pressing strip 100 is as described in the above embodiments. Since the display device 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The back plate 4 has a back plate groove 41, which has a bottom wall and two inner side walls on both sides of the bottom wall. The length of the pressing strip 2, the adhesive strip 1, and the back plate groove 41 are aligned. The width of the adhesive strip 1 is aligned with the width of the back plate groove 41, and the thickness of the adhesive strip 1 is aligned with the opening direction of the back plate groove 41. The pressing strip 100 and the optical film 5 are both located in the back plate groove 41. The adhesive strip 1 is bonded to the bottom wall of the back plate groove 41. One end of the pressing strip 2 in the thickness direction abuts against the inner side wall of the back plate groove 41, and the other end is pressed against the optical film 5.

[0063] In the technical solution of this utility model, when installing the adhesive strip 1 onto the bottom wall of the back plate groove 41, it is only necessary to use a jig to press the adhesive strip 1 from the first side end 11, so that part of the adhesive strip 1 is adhered to the bottom wall of the back plate groove 41; then, by moving the jig along the length direction of the adhesive strip 1, the entire adhesive strip 1 can be adhered to the bottom wall of the back plate groove 41, thus completing the installation of the pressure strip 100. During the installation of the pressure strip 100, the pressure strip 2 can be prevented from being squeezed, and the pressure strip 2 can be prevented from being exposed in the viewing area of ​​the television screen, thus ensuring the display effect.

[0064] The difference between the width of the back plate groove 41 and the width of the adhesive strip 1 is L, and 0.2mm≤L≤0.4mm; by setting the width of the adhesive strip 1, it is easier to install the adhesive strip 1 in the back plate groove 41, reducing the installation difficulty of the adhesive strip 1.

[0065] The value of L can be any one of 0.2mm, 0.25mm, 0.3mm, 0.35mm, and 0.4mm. The value of L can be any value between 0.2mm and 0.4mm, without limitation. Specifically, the value of L is 0.3mm.

[0066] The back plate groove 41 is mostly formed by stamping the back plate 4, with an error of ±0.2mm; the adhesive strip 1 is extruded, and the width error of the extruded strip is generally ±0.15mm. By setting the width of the adhesive strip 1, it is easy to fill the adhesive strip 1 into the back plate groove 41.

[0067] In one embodiment of this utility model, double-sided adhesive 6 is provided between the adhesive strip 1 and the bottom wall of the back plate groove 41. The double-sided adhesive 6 completes the bonding between the adhesive strip 1 and the bottom wall of the back plate groove 41. The material of the double-sided adhesive 6 can be selected as needed, provided that it does not corrode the back plate 4 and the adhesive strip 1, and ensures the bonding strength between the back plate 4 and the adhesive strip 1; no limitation is imposed here.

[0068] Please see Figure 5 In one embodiment of this utility model, a diffuser plate 7 and a reflector 8 are further installed in the back plate groove 41. The optical film 5, the diffuser plate 7, and the reflector 8 are arranged sequentially. The diffuser plate 7 is located between the reflector 8 and the optical film 5, and the opposite sides of the diffuser plate 7 abut against the reflector 8 and the optical film 5, respectively. The support strip 3 can support the reflector 8. A liquid crystal glass 91 is also installed on the outer wall of the back plate groove 41 by foam adhesive 9.

[0069] The display device 200 includes a liquid crystal television (LCD). The back panel 4 includes the back panel 4 of the LCD. The display device 200 may also be other liquid crystal display screens, which are not limited here.

[0070] Within the display device 200, the number of the pressing strips 100 is set to three, and the three pressing strips 100 are arranged on the upper side, left side and right side of the display device 200.

[0071] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pressure strip for use in a display device, characterized in that, The pressure strip includes: The adhesive strip portion has a first side end and a second side end disposed opposite each other in its thickness direction, the first side end being used to adhere to the bottom wall of a backplate groove formed in the display device; and, The pressure strip has a length direction that is consistent with the length direction of the adhesive strip, and the width direction of the pressure strip intersects with the width direction of the adhesive strip. One end of the pressure strip in the width direction is located at the second side end for pressing the optical film disposed in the display device.

2. The pressure strip as described in claim 1, characterized in that, The angle A between the width direction of the adhesive strip and the width direction of the film pressing strip is set to an obtuse angle.

3. The pressure strip as described in claim 2, characterized in that, 92°≤A≤98°; and / or, The thickness of one end of the pressure strip that connects to the adhesive strip is partially reduced.

4. The pressure strip as described in claim 3, characterized in that, The minimum thickness of the end of the film-pressing strip that connects to the adhesive strip is B1, and 0.3mm≤B1≤0.4mm.

5. The pressure strip as described in claim 1, characterized in that, The film-pressed strip includes a strip body and a film-pressing protrusion. One end of the strip body in the width direction is connected to the adhesive strip, and the film-pressing protrusion is located at the other end of the strip body in the width direction and extends along the thickness direction of the strip body. The pressure protrusion has a pressure surface facing away from the strip body, used to press the optical film in the display device.

6. The pressure strip as described in claim 5, characterized in that, The free end of the pressure-film protrusion, facing away from the adhesive strip portion, has at least partially configured as a guide slope. Along a direction away from the strip body, the guide slope gradually approaches the adhesive strip portion, and an arc-shaped connecting surface is provided between the guide slope and the pressure-film surface; and / or, The pressure-pressing protrusion is provided with reinforcing ribs, which extend along the thickness direction of the pressure-pressing strip.

7. The pressure strip as described in claim 1, characterized in that, The pressure-film strip further includes a support strip portion connected to the second side end, the support strip portion and the pressure-film strip portion being spaced apart in the width direction of the adhesive strip portion; and / or The thickness of the adhesive strip is B2, and 0.4mm≤B2≤0.6mm.

8. A display device, characterized in that, It includes a back plate, an optical film, and a pressing strip, wherein the back plate is formed with a back plate groove, and the pressing strip includes the pressing strip as described in any one of claims 1 to 7; The back plate groove has a bottom wall and two inner side walls disposed on both sides of the bottom wall. The length direction of the pressing strip, the adhesive strip and the back plate groove are consistent. The width direction of the adhesive strip is consistent with the width direction of the back plate groove. The thickness direction of the adhesive strip is consistent with the opening direction of the back plate groove. Both the pressure strip and the optical film are located in the back plate groove. The adhesive strip is bonded to the bottom wall of the back plate groove. One end of the pressure strip in the thickness direction abuts against the inner side wall of the back plate groove, and the other end is pressed against the optical film.

9. The display device as claimed in claim 8, characterized in that, The difference between the width of the backplate groove and the width of the adhesive strip is L, and 0.2mm ≤ L ≤ 0.4mm; and / or, Double-sided adhesive is provided between the adhesive strip and the bottom wall of the back plate groove.

10. The display device as claimed in claim 9, characterized in that, The display device includes an LCD television.

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