Display device

Abstract

The utility model provides a display device, and relates to the technical field of display. The display device comprises a back plate, a liquid crystal panel and a fixing structure located between the back plate and the liquid crystal panel, and the two ends of the fixing structure are attached to the liquid crystal panel and the back plate respectively. The display device further comprises an optical film, a mounting groove is defined by the fixing structure and the back plate, and the edge portion of the optical film is embedded into the mounting groove. The display device comprises the fixing structure between the back plate and the liquid crystal panel, one end of the fixing structure is attached to the liquid crystal panel, the liquid crystal panel can be fixedly supported, a back plate F bending structure is omitted, the difficulty of the forming process of the back plate is reduced, the production process is simplified, the use of splicing corner fittings is reduced, and the product cost is reduced; the other end of the fixing structure and the back plate enclose to form the mounting groove, an expansion space can be provided for the optical film, and the problem that the display effect is affected by wrinkled film due to the fact that the optical film is heated to expand and cannot stretch is solved.

Description

Technical Field

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

[0002] The backlight of large-size display products is usually divided into edge-entry and direct-down types. The direct-down type evenly distributes the LED light behind the LCD panel, which can provide uniform brightness distribution and delicate picture details, with excellent color performance and image effects.

[0003] At present, direct-type display products usually use the backplane F-bend to fix the liquid crystal panel, diffuser and optical film. The F-bend preparation process of the backplane is complicated, and the corners cannot be stamped and spliced, and the corners need to be sealed by welding or adding additional corner pieces; in addition, the cross-section of the F-bend has a certain degree of unevenness, which may scratch the optical film, etc. At this time, it is necessary to add a rubber strip or Mylar at the bottom of the F-bend to isolate the F-bend, the optical film and the diffuser, which increases the cost and is more complicated.

[0004] Therefore, the fixing structure of the optical film needs to be further improved. Utility Model Content

[0005] In view of this, an object of the present application is to provide a display device.

[0006] The technical solution adopted by this application to solve the above technical problems is:

[0007] In a first aspect, the present application provides a display device, comprising a back panel, a liquid crystal panel, and a fixed structure located between the back panel and the liquid crystal panel, wherein two ends of the fixed structure are respectively bonded to the liquid crystal panel and the back panel; the display device also comprises an optical film, wherein the fixed structure and the back panel are enclosed to form a mounting groove, and an edge of the optical film is embedded in the mounting groove.

[0008] Optionally, in some embodiments of the present application, the fixing structure includes a first fixing portion and a second fixing portion that are connected, the first fixing portion is located between the liquid crystal panel and the optical film, and is bonded to the liquid crystal panel, the second fixing portion is bonded to the back panel, and the first fixing portion, the second fixing portion and the back panel are combined to form an installation groove.

[0009] Optionally, in some embodiments of the present application, the fixing structure is in a “Z” shape or an “L” shape.

[0010] Optionally, in some embodiments of the present application, when the fixing structure is in a "Z" shape, the widths of the first fixing portion and the second fixing portion are the same.

[0011] Optionally, in some embodiments of the present application, the first fixing portion and the second fixing portion are connected by bending.

[0012] Optionally, in some embodiments of the present application, the material of the fixing structure is an elastic material, and the elastic material is rubber or foam.

[0013] Optionally, in some embodiments of the present application, a first gap portion is provided between the first fixing portion and the optical film.

[0014] Optionally, in some embodiments of the present application, a second gap portion is provided between the second fixing portion and the optical film.

[0015] Optionally, in some embodiments of the present application, the display device further includes a first adhesive layer and a second adhesive layer, the first adhesive layer is located between the first fixing portion and the liquid crystal panel, and the second adhesive layer is located between the second fixing portion and the back plate.

[0016] Optionally, in some embodiments of the present application, the fixing structure includes a first structure segment, a second structure segment and a third structure segment extending and connected along the circumference of the optical film, and the edge of the optical film is correspondingly embedded in the installation groove formed by each structure segment and the back panel.

[0017] Optionally, in some embodiments of the present application, the display device further comprises a diffuser plate, an edge of the diffuser plate is located in the mounting groove, one side of the diffuser plate is laminated and bonded with the optical film, and the other side is arranged on the back plate.

[0018] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0019] The display device provided by the present application includes a fixing structure between a back panel and a liquid crystal panel. One end of the fixing structure is fitted with the liquid crystal panel to fix and support the liquid crystal panel, eliminating the F-bending structure of the back panel, reducing the difficulty of the back panel forming process, simplifying the production process, reducing the use of splicing corner pieces, and reducing the cost of the product; the other end of the fixing structure and the back panel form an installation groove, which can provide expansion space for the optical film, thereby avoiding the problem that the optical film cannot be stretched due to heat expansion and wrinkles, affecting the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but are not intended to limit the present application, wherein:

[0021] Figure 1 A schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0022] Figure 2 for Figure 1 The cross-sectional view along the AA direction;

[0023] Figure 3 for Figure 2 Enlarged view of middle B;

[0024] Figure 4 A cross-sectional schematic diagram of a fixing structure provided in an embodiment of the present application;

[0025] Figure 5 A cross-sectional schematic diagram of another fixing structure provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1- Display device;

[0028] 10-fixing structure; 11-first fixing portion; 12-second fixing portion; 13-installation groove; 14-first gap portion; 15-second gap portion;

[0029] 20 - back panel; 30 - liquid crystal panel; 40 - optical film; 50 - diffusion plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described in this application as exemplary is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in the present application.

[0033] To facilitate understanding of the scheme of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0034] See also Figures 1 to 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 located between the back plate 20 and the liquid crystal panel 30. The two ends of the fixing structure 10 are respectively attached to the liquid crystal panel 30 and the back plate 20. The display device 1 also includes an optical film 40, and the fixing structure 10 and the back plate 20 are enclosed to form a mounting groove 13, and the edge of the optical film 40 is embedded in the mounting groove 13.

[0035] The display device 1 provided in the present application includes a fixing structure 10 between a back panel 20 and a liquid crystal panel 30. One end of the fixing structure 10 is fitted with the liquid crystal panel 30 to fix and support the liquid crystal panel 30, eliminating the F-bending structure of the back panel 20, reducing the difficulty of the molding process of the back panel 20, simplifying the production process, reducing the use of splicing corner pieces, and reducing the cost of the product; the other end of the fixing structure 10 and the back panel 20 form an installation groove 13, which can provide expansion space for the optical film 40, thereby avoiding the problem that the optical film 40 cannot expand due to heat and becomes wrinkled, affecting the display effect.

[0036] In some embodiments, the fixing structure 10 includes 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 bonded to the liquid crystal panel 30. The second fixing portion 12 is bonded to the back panel 20. The first fixing portion 11, the second fixing portion 12 and the back panel 20 form a mounting groove 13.

[0037] In some embodiments, the first fixing portion 11 and the second fixing portion 12 are connected by bending.

[0038] It should be noted that the first fixing portion 11 and the second fixing portion 12 are bent and connected, and the connection between them can be a vertical connection or an inclined connection such as 30° or 60°. The first fixing portion 11 and the second fixing portion 12 can enclose an installation groove 13 with the back plate 20.

[0039] In some embodiments, in the fixing structure 10, the first fixing portion 11 and the second fixing portion 12 are integrally formed. On the one hand, it can improve the connection stability between the first fixing portion 11 and the second fixing portion 12. On the other hand, it is convenient to simplify the manufacturing process of the fixing structure 10 and省去 the assembly process of the first fixing portion 11 and the second fixing portion 12.

[0040] Furthermore, the first fixing portion 11 is disposed in contact with the liquid crystal panel 30. Specifically, the display device 1 further includes a first adhesive layer, and the first adhesive layer is located between the first fixing portion 11 and the liquid crystal panel 30 and is used to connect the first fixing portion 11 and the liquid crystal panel 30.

[0041] Correspondingly, the second fixing portion 12 is disposed in contact with the back plate 20. Specifically, the display device 1 further includes a second adhesive layer, and the second adhesive layer is located between the second fixing portion 12 and the back plate 20 and is used to connect the second fixing portion 12 and the back plate 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 disposed in contact with the back plate 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 the second adhesive layer can be provided on both sides where the second fixing portion 12 is in contact with the back plate 20.

[0042] In some embodiments, the first adhesive layer and the second adhesive layer are double-sided tapes. Double-sided tapes are widely sourced, inexpensive, and have good adhesiveness, which is beneficial to the connection stability between the fixing structure 10 and the liquid crystal panel 30 and the back plate 20.

[0043] In some embodiments, please refer to Figure 4 and Figure 5 , the fixing structure 10 is in a "Z" shape or an "L" shape. It should be noted that the description of the "Z" shape or "L" shape of the fixing structure 10 in this application does not indicate or imply that the fixing structure 10 must have a unique orientation. For example, the "L" shape can also be in a "7" shape or a "factory" shape in the perspective of the display device 1.

[0044] In some embodiments, when the fixing structure 10 is in a "Z" shape, the widths of the first fixing portion 11 and the second fixing portion 12 are the same. Specifically, please continue to refer to Figure 4, the width of the first fixing portion 11 is d1, the width of the second fixing portion 12 is d2, and d1 and d2 satisfy d1=d2. It can be understood that the "Z"-shaped fixing structure 10 is a step structure with two notches. When d1=d2, the two notches have the same size. In this way, when preparing the fixing structure 10, it is beneficial to directly split the raw materials to prepare multiple fixing structures 10, so as to reduce waste and reduce material costs. When storing and transporting multiple fixing structures 10, it is easy to place and save storage space.

[0045] In some embodiments, the material of the fixing structure 10 is an elastic material. The fixing structure 10 made of an elastic material has elastic buffering properties, which can protect the liquid crystal panel 30 and the optical film 40 from being bumped when the display device 1 shakes, and can provide a stretching buffer space for the thermal expansion of the optical film 40 when the display device 1 is heated, so as to avoid the phenomenon of wrinkling due to the lack of space for the optical film 40 to stretch when heated.

[0046] Furthermore, the elastic material is rubber or foam.

[0047] In some embodiments, please refer to Figure 5 , the height h of the fixing structure 10 is greater than or equal to 2 mm. Within this height range, it is convenient to place other film materials such as the diffuser 50 between the liquid crystal panel 30 and the back plate 20, and the light intensity emitted from the optical film 40 to the liquid crystal panel 30 is appropriate, and the display effect of the liquid crystal panel 30 is good.

[0048] In some embodiments, a first gap portion 14 is provided between the first fixing portion 11 and the optical film 40, and the width of the first gap portion 14 is 0.3 mm to 1.3 mm, for example, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc. In this way, within the range of the first gap portion 14, a deformation buffer space can be provided for the optical film 40 along its length direction and / or width direction when the optical film 40 expands due to heat.

[0049] In some embodiments, a second gap 15 is provided between the second fixing portion 12 and the optical film 40, and the width of the second gap 15 is 0.3 mm to 1.3 mm, for example, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc. Thus, within the range of the second gap 15, a deformation buffer space can be provided for the optical film 40 along its thickness direction when the optical film 40 expands due to heat.

[0050] In some embodiments, the fixing structure 10 includes a first structural segment, a second structural segment, and a third structural segment that are connected and extend along the peripheral side of the optical film 40. The edge portion of the optical film 40 is embedded in the mounting groove 13 formed by enclosing each structural segment and the back plate 20. It can be understood that the optical film 40 is in a "mouth" shape, and the first structural segment, the second structural segment, and the third structural segment are connected together to form a "匸" shape, and the first structural segment and the third structural segment are arranged in parallel.

[0051] It should be noted that the first structural segment, the second structural segment, and the third structural segment all have some or all of the characteristics of the above-mentioned fixing structure 10, such as the first fixing portion 11 and the second fixing portion 12 that are bent and connected. And within each structural segment, the positional relationship between the fixing structure 10 and other structures such as the optical film 40 and the back plate 20 is the same. In this way, the fixing structure 10 can fully fix and support the liquid crystal panel 30, the force on each structural segment is uniform, and the stability is higher. It also provides a buffer space for the multi-angle expansion of the optical film 40, improving the display effect.

[0052] In some embodiments, the display device 1 further includes 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 stacked and attached to the optical film 40, and the other side is disposed on the back plate 20. Between the diffusion plate 50, the optical film 40, and the back plate 20, a double-sided tape connection method can be used for connection.

[0053] In the present application, the display device 1 may further include other film materials such as a reflective sheet. The types, materials, positions, etc. of other film materials are all conventional selections and settings in the art, and will not be elaborated here.

[0054] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are proposed in the present application, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of the present application.

[0055] For each patent, patent application, patent application publication, and other materials cited in the present application, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated into the present application as references, except for application history documents that are inconsistent with or conflict with the content of the present application, and documents that limit the broadest scope of the claims of the present application (currently or subsequently attached to the present application). It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the attached materials of the present application and the content of the present application, the descriptions, definitions, and / or uses of terms in the present application shall prevail.

Claims

1. A display device, characterized in that: The display device includes a back plate, a liquid crystal panel, and a fixed structure located between the back plate and the liquid crystal panel, wherein two ends of the fixed structure are respectively bonded to the liquid crystal panel and the back plate; the display device also includes an optical film, wherein the fixed structure and the back plate are combined to form a mounting groove, and an edge of the optical film is embedded in the mounting groove.

2. The display device according to claim 1, characterized in that The fixing structure includes a first fixing portion and a second fixing portion that are connected. The first fixing portion is located between the liquid crystal panel and the optical film and is bonded to the liquid crystal panel. The second fixing portion is bonded to the back panel. The first fixing portion, the second fixing portion and the back panel enclose the mounting groove.

3. The display device according to claim 2, characterized in that: The fixing structure is in a "Z" shape or an "L" shape.

4. The display device according to claim 3, characterized in that: When the fixing structure is in a "Z" shape, the widths of the first fixing portion and the second fixing portion are the same.

5. The display device according to claim 2, characterized in that: The first fixing portion and the second fixing portion are connected by bending.

6. The display device according to any one of claims 1 to 3, characterized in that: The material of the fixing structure is an elastic material, and the elastic material is rubber or foam.

7. The display device according to claim 2, characterized in that: A first gap is defined between the first fixing portion and the optical film.

8. The display device according to claim 2, characterized in that: A second gap is defined between the second fixing portion and the optical film.

9. The display device according to claim 2, characterized in that: The display device further includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is located between the first fixing portion and the liquid crystal panel, and the second adhesive layer is located between the second fixing portion and the back plate.

10. The display device according to claim 1, characterized in that: The fixing structure comprises a first structure segment, a second structure segment and a third structure segment extending and connected along the circumference of the optical film, and the edge of the optical film is correspondingly embedded in a mounting groove formed by each structure segment and the back plate.

11. The display device according to claim 1, characterized in that: The display device further comprises a diffusion plate, an edge of which is located in the mounting groove, one side of the diffusion plate is laminated and bonded with the optical film, and the other side of the diffusion plate is arranged on the back plate.

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