Display device

Abstract

A display device (1), relating to the technical field of display. The display device (1) comprises a backplane (20), a liquid crystal panel (30), and a fixing structure (10) located between the backplane (20) and the liquid crystal panel (30). Two ends of the fixing structure (10) are respectively attached to the liquid crystal panel (30) and the backplane (20); the display device (1) further comprises an optical film (40), the fixing structure (10) and the backplane (20) define a mounting slot (13), and the edge portion of the optical film (40) is embedded in the mounting slot (13). The display device (1) simplifies the production process and reduces the cost of the product.

Description

Display device

[0001] Cross Reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202420808894.6, filed on April 17, 2024, entitled “Display device”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0004] The backlight of large-size display products is generally divided into side-in type and direct type. The direct type evenly distributes LED lamps behind the liquid crystal panel, which can provide uniform brightness distribution and delicate picture details, and has excellent color performance and image effect. TECHNICAL PROBLEM

[0005] In the related art, the direct type display product usually adopts the form of F-bending of the back plate to fix the liquid crystal panel, the diffusion plate and the optical film. The F-bending preparation process of the back plate is complex, and the corners cannot be completed by stamping and splicing, and need to be sealed by welding or additional corner pieces. In addition, the cross section of the F-bending has certain unevenness, which may scratch the optical film, and at this time, a rubber strip or Mylar needs to be added at the bottom of the F-bending to isolate the F-bending, the optical film and the diffusion plate, resulting in rising cost and complex process.

[0006] Therefore, the fixing structure of the optical film needs to be further improved. TECHNICAL SOLUTION

[0007] In order to improve the defects of the prior art, the main purpose of the present application is to provide a display device. The technical scheme adopted by the present application to solve the above technical problems is:

[0008] The present application provides a display device, which comprises a back plate, a liquid crystal panel, and a fixing structure between the back plate and the liquid crystal panel. The two ends of the fixing structure are respectively arranged in close contact with the liquid crystal panel and the back plate. The display device further comprises an optical film, and the fixing structure and the back plate form an installation groove, and the edge part of the optical film is embedded in the installation groove.

[0009] Optionally, in some embodiments of the present application, the fixing structure comprises a first fixing part and a second fixing part connected, the first fixing part is located between the liquid crystal panel and the optical film, and is arranged in close contact with the liquid crystal panel, and the second fixing part is arranged in close contact with the back plate, and the first fixing part, the second fixing part and the back plate form the installation groove.

[0010] Optionally, in some embodiments of the present application, the fixing structure is a "Z" shape.

[0011] Optionally, in some embodiments of the present application, when the fixing structure is a "Z" shape, the first fixing part and the second fixing part have the same width.

[0012] Optionally, in some embodiments of the present application, the fixing structure is an "L" shape.

[0013] Optionally, in some embodiments of the present application, the first fixing part and the second fixing part are connected by bending.

[0014] Optionally, in some embodiments of the present application, the first fixing part and the second fixing part are integrally formed.

[0015] Optionally, in some embodiments of the present application, the first fixing part and the optical film have a first gap part therebetween, and the width of the first gap part is 0.3mm-1.3mm.

[0016] Optionally, in some embodiments of the present application, the second fixing part and the optical film have a second gap part therebetween, and the width of the second gap part is 0.3mm-1.3mm.

[0017] Optionally, in some embodiments of the present application, the first fixing part is attached to the liquid crystal panel.

[0018] Optionally, in some embodiments of the present application, the display device further comprises a first adhesive layer between the first fixing part and the liquid crystal panel.

[0019] Optionally, in some embodiments of the present application, the material of the first adhesive layer is double-sided tape.

[0020] Optionally, in some embodiments of the present application, the second fixing part is attached to the back plate.

[0021] Optionally, in some embodiments of the present application, the display device further comprises a second adhesive layer between the second fixing part and the back plate.

[0022] Optionally, in some embodiments of the present application, the material of the second adhesive layer is double-sided tape.

[0023] Optionally, in some embodiments of the present application, the material of the fixing structure is an elastic material.

[0024] Optionally, in some embodiments of the present application, the elastic material is rubber or foam.

[0025] Optionally, in some embodiments of the present application, the height of the fixing structure is greater than or equal to 2mm.

[0026] Optionally, in some embodiments of the present application, the fixing structure comprises a first structure segment, a second structure segment and a third structure segment connected along the circumferential side of the optical film, and the edge portion of the optical film is embedded in the mounting groove formed by each structure segment and the back plate.

[0027] Optionally, in some embodiments of the present application, the display device further comprises a diffusion plate, the edge portion of the diffusion plate is located in the mounting groove, one side of the diffusion plate is arranged in a laminated manner with the optical film, and the other side is arranged on the back plate. Advantages

[0028] The display device provided by the present application comprises a fixing structure between a back plate and a liquid crystal panel, one end of the fixing structure is arranged in a bonded manner with the liquid crystal panel, can fix and support the liquid crystal panel, eliminates the F-bending structure of the back plate, reduces the difficulty of the forming process of the back plate, simplifies the production process, reduces the use of splicing corner pieces, and reduces the cost of the product; the other end of the fixing structure is enclosed with the back plate to form a mounting groove, can provide expansion space for the optical film, and avoid the problem that the optical film cannot be stretched due to heat expansion and causes wrinkling of the film to affect the display effect. BRIEF DESCRIPTION OF DRAWINGS

[0029] 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 be obtained by those skilled in the art without creative labor

[0030] Fig. 1 is a structural schematic view of a display device provided by an embodiment of the present application;

[0031] Fig. 2 is a sectional view along A-A direction in Fig. 1;

[0032] Fig. 3 is an enlarged view of B in Fig. 2;

[0033] Fig. 4 is a sectional schematic view of a fixing structure provided by an embodiment of the present application;

[0034] Fig. 5 is a sectional schematic view of another fixing structure provided by an embodiment of the present application.

[0035] Legend of reference signs: 1-display device; 10-fixing structure; 11-first fixing portion; 12-second fixing portion; 13-mounting groove; 14-first gap portion; 15-second gap portion; 20-back plate; 30-liquid crystal panel; 40-optical film; 50-diffusion plate.

[0036] Embodiments of the present application

[0037] With reference to the drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of them. Based on the embodiments of the present application, any person skilled in the art can obtain all other embodiments without creative work, which shall fall into the protection scope of the present application.

[0038] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0039] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as exemplary in the present application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the present application. In the following description, for the purposes of explanation, numerous details are set forth in order to provide a thorough understanding. It should be apparent to those skilled in the art that the present application can be practiced without the use of these specific details. In other instances, well known structures and processes are not elaborated in order not to obscure the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0040] In order to facilitate the understanding of the scheme of the present application, the spline curves and arrows used in the reference signs in the drawings are described as follows: the components indicated by the spline curves without arrows are solid components, i.e. components with solid structures; the components indicated by the spline curves with arrows are virtual components, i.e. components without solid structures.

[0041] Referring to FIGS. 1-5, the embodiment of the present application provides a display device 1, comprising a back plate 20, a liquid crystal panel 30, and a fixing structure 10 between the back plate 20 and the liquid crystal panel 30. The fixing structure 10 is arranged in abutment with the liquid crystal panel 30 and the back plate 20 at two ends thereof. The display device 1 further comprises an optical film 40, and the fixing structure 10 and the back plate 20 enclose an installation groove 13, and an edge portion of the optical film 40 is embedded in the installation groove 13.

[0042] The display device 1 provided by the present application comprises the fixing structure 10 between the back plate 20 and the liquid crystal panel 30, one end of the fixing structure 10 is arranged in abutment with the liquid crystal panel 30, and the fixing structure 10 can be fixed and supported to the liquid crystal panel 30, the F-bending structure of the back plate 20 is omitted, the difficulty of the forming process of the back plate 20 is reduced, the production process is simplified, the use of the splicing corner piece is reduced, and the cost of the product is reduced; the other end of the fixing structure 10 is enclosed with the back plate 20 to form the installation groove 13, and the optical film 40 can be provided with an expansion space, so that the problem that the optical film 40 cannot be stretched due to thermal expansion and causes wrinkling of the film to affect the display effect is avoided.

[0043] In some embodiments, the fixing structure 10 comprises a first fixing portion 11 and a second fixing portion 12 connected to each other, the first fixing portion 11 is located between the liquid crystal panel 30 and the optical film 40 and is arranged in abutment with the liquid crystal panel 30, and the second fixing portion 12 is arranged in abutment with the back plate 20, and the first fixing portion 11, the second fixing portion 12 and the back plate 20 enclose the installation groove 13.

[0044] In some embodiments, the first fixing portion 11 and the second fixing portion 12 are connected in a bending manner.

[0045] It should be noted that the first fixing portion 11 and the second fixing portion 12 are connected in a bending manner, and can be connected in a perpendicular manner, or in an inclined manner at an angle of 30°, 60°, etc., and the first fixing portion 11 and the second fixing portion 12 can enclose the installation groove 13 with the back plate 20.

[0046] In some embodiments, the first fixing portion 11 and the second fixing portion 12 are integrally formed in the fixing structure 10. On the one hand, the connection stability between the first fixing portion 11 and the second fixing portion 12 can be improved, and on the other hand, the preparation process of the fixing structure 10 can be simplified, and the assembly process of the first fixing portion 11 and the second fixing portion 12 is omitted.

[0047] Further, the first fixing portion 11 is arranged in abutment with the liquid crystal panel 30, and specifically, the display device 1 further comprises a first adhesive layer between the first fixing portion 11 and the liquid crystal panel 30, for connecting the first fixing portion 11 and the liquid crystal panel 30.

[0048] Correspondingly, the second fixing portion 12 is bonded to the back panel 20. Specifically, the display device 1 further includes a second adhesive layer, which is located between the second fixing portion 12 and the back panel 20 and is used to connect the second fixing portion 12 and the back panel 20. It should be noted that both the side of the second fixing portion 12 away from the optical film 40 and the side of the second fixing portion 12 away from the liquid crystal panel 30 can be bonded to the back panel 20. The second adhesive layer can be located only on the side of the second fixing portion 12 away from the optical film 40, or only on the side of the second fixing portion 12 away from the liquid crystal panel 30, or can be provided on both sides of the second fixing portion 12 bonded to the back panel 20.

[0049] In some embodiments, the first adhesive layer and the second adhesive layer are made of double-sided tape, which is widely available, inexpensive, and has good adhesion, thus facilitating the stability of the connection between the fixing structure 10 and the liquid crystal panel 30 and the back plate 20 .

[0050] In some embodiments, referring to Figures 4 and 5 , the fixing structure 10 is in a "Z" or "L" shape. It should be noted that the description of the fixing structure 10 as a "Z" or "L" shape in this application does not indicate or imply that the fixing structure 10 must have a specific orientation. For example, the "L" shape can also appear as a "7" or "F" shape from the perspective of the display device 1.

[0051] In some embodiments, when the fixed structure 10 is in a "Z" shape, the widths of the first fixed portion 11 and the second fixed portion 12 are the same. Specifically, please continue to refer to Figure 4. The width of the first fixed portion 11 is d1, and the width of the second fixed portion 12 is d2. d1 and d2 satisfy d1=d2. It can be understood that the "Z"-shaped fixed structure 10 is a step structure with two notches. When d1=d2, the sizes of the two notches are the same. In this way, when preparing the fixed structure 10, it is beneficial to directly split the raw materials to prepare multiple fixed structures 10, so as to reduce waste and reduce material costs. In addition, when storing and transporting multiple fixed structures 10, it is easy to place them and save storage space.

[0052] In some embodiments, the fixing structure 10 is made of an elastic material. The fixing structure 10 made of an elastic material has elastic cushioning properties, which can protect the liquid crystal panel 30 and the optical film 40 from being bumped when the display device 1 is shaken. Furthermore, when the display device 1 is heated, the fixing structure 10 can provide a buffer space for the thermal expansion of the optical film 40, thereby preventing the film from wrinkling due to the lack of space for expansion.

[0053] Furthermore, the elastic material is rubber or foam.

[0054] In some embodiments, please refer to FIG. 5, the height h of the fixing structure 10 is greater than or equal to 2mm. In this height range, it is convenient to place other film materials such as the diffusion plate 50 between the liquid crystal panel 30 and the back plate 20, and the light intensity of the optical film 40 emitted to the liquid crystal panel 30 is appropriate, and the display effect of the liquid crystal panel 30 is good.

[0055] In some embodiments, the first gap part 14 between the first fixing part 11 and the optical film 40 has a width of 0.3mm-1.3mm, for example, it can be 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, etc. In this way, in the range of the first gap part 14, deformation buffer space along the length direction and / or width direction of the optical film 40 can be provided for the optical film 40 when it is heated and expanded.

[0056] In some embodiments, the second gap part 15 between the second fixing part 12 and the optical film 40 has a width of 0.3mm-1.3mm, for example, it can be 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, etc. In this way, in the range of the second gap part 15, deformation buffer space along the thickness direction of the optical film 40 can be provided for the optical film 40 when it is heated and expanded.

[0057] In some embodiments, the fixing structure 10 includes a first structure segment, a second structure segment and a third structure segment connected along the circumferential side of the optical film 40, and the edge part of the optical film 40 is embedded in the mounting groove 13 formed by each structure segment and the back plate 20. It can be understood that the optical film 40 is in the shape of a "mouth" character, the first structure segment and the second structure segment, and the third structure segment are connected to form a "box" character, and the first structure segment and the third structure segment are arranged in parallel.

[0058] It should be noted that the first structure segment, the second structure segment and the third structure segment all have some or all of the features of the fixing structure 10 described above, such as the first fixing part 11 and the second fixing part 12 connected by bending, and in each structure segment, the position relationship of the fixing structure 10 with the optical film 40, the back plate 20 and other structures is consistent. In this way, the fixing structure 10 can fully fix and support the liquid crystal panel 30, the stress of each structure segment is uniform, the stability is higher, and the multi-angle expansion of the optical film 40 is also provided with buffer space, and the display effect is improved.

[0059] In some embodiments, the display device 1 further comprises a diffusion plate 50, the edge portion of the diffusion plate 50 is located in the mounting groove 13, one side of the diffusion plate 50 is laminated and attached with the optical film 40, and the other side is arranged on the back plate 20. The diffusion plate 50, the optical film 40 and the back plate 20 can be connected by double-sided adhesive tape.

[0060] In the present application, the display device 1 can further comprise a reflective sheet and other film materials. The types, materials, positions and the like of the other film materials are conventional choices and settings in the art, and will not be described here.

[0061] The above has described the basic concept. It is obvious that the above detailed disclosure is only an example and does not limit the present application for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0062] For each patent, patent application, patent application publication, and other material, such as articles, books, specifications, publications, documents, and the like, cited in this application, the entire contents of each such cited application, publication, document, and the like is hereby incorporated by reference, except that the contents of the present application, if inconsistent with the cited application, publication, document, and the like, control over the cited application, publication, document, and the like. It is noted that if there is a discrepancy or conflict between the descriptions, definitions, and / or terms used in the present application and that of the incorporated-by-reference material, the descriptions, definitions, and / or terms used in the present application control.

Claims

1. A display device, wherein, The display device comprises a back plate, a liquid crystal panel, and a fixing structure between the back plate and the liquid crystal panel, two ends of the fixing structure are respectively attached to the liquid crystal panel and the back plate; the display device further comprises an optical film, the fixing structure and the back plate form an installation slot, and an edge portion of the optical film is embedded in the installation slot.

2. The display device according to claim 1, wherein The fixing structure comprises a first fixing portion and a second fixing portion connected, the first fixing portion is between the liquid crystal panel and the optical film and is attached to the liquid crystal panel, and the second fixing portion is attached to the back plate, and the first fixing portion, the second fixing portion and the back plate form the installation slot.

3. The display device according to claim 2, wherein The fixing structure is in the shape of "Z".

4. The display device according to claim 3, wherein When the fixing structure is in the shape of "Z", the first fixing portion and the second fixing portion have the same width.

5. The display device according to claim 2, wherein The fixing structure is in the shape of "L".

6. The display device according to claim 2, wherein The first fixing portion and the second fixing portion are connected by bending.

7. The display device according to claim 2, wherein The first fixing portion and the second fixing portion are integrally formed.

8. The display device according to claim 2, wherein The first fixing portion and the optical film have a first gap portion, and the width of the first gap portion is 0.3mm-1.3mm.

9. The display device according to claim 2, wherein The second fixing portion and the optical film have a second gap portion, and the width of the second gap portion is 0.3mm-1.3mm.

10. The display device according to claim 2, wherein The first fixing portion is attached to the liquid crystal panel.

11. The display device of claim 10, wherein, The display device further comprises a first adhesive layer between the first fixing portion and the liquid crystal panel.

12. The display device of claim 11, wherein, The material of the first adhesive layer is double-sided tape.

13. The display device according to claim 2, wherein The second fixing portion is attached to the back plate.

14. The display device of claim 13, wherein, The display device further comprises a second adhesive layer between the second fixing portion and the back plate.

15. The display device of claim 14, wherein, The material of the second adhesive layer is double-sided tape.

16. The display device of claim 1, wherein, The material of the fixing structure is an elastic material.

17. The display device of claim 16, wherein, The elastic material is rubber or foam.

18. The display device of claim 1, wherein, The height of the fixing structure is greater than or equal to 2mm.

19. The display device of claim 1, wherein, The fixing structure comprises a first structure segment, a second structure segment and a third structure segment connected along the circumferential side of the optical film, and the edge portion of the optical film is correspondingly embedded in the installation slot formed by each structure segment and the back plate.

20. The display device of claim 1, wherein, The display device further comprises a diffusion plate, the edge portion of the diffusion plate is in the installation slot, one side of the diffusion plate is attached to the optical film, and the other side is arranged on the back plate.

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