Display device

Abstract

The utility model relates to display device technical field discloses a display device. The display device includes backlight unit, glue frame and display panel, and the backlight unit includes backplate, lamp strip and light guide plate, and the lamp strip is installed on the backplate, and the light guide plate includes main part and annular support part, and the main part is connected with the backplate, and the annular support part is protruding in the main part side away from the backplate, and the inboard of annular support part is display area, the glue frame is connected with the backplate, and is located annular support part outside, and the display panel is pressed on the annular support part. The display device of the utility model not only can prevent the foreign matter such as glue frame scrap, glass scrap reaches the display area of display device, and is convenient to carry out dismounting and reworking, and the reworking process is not easy to cause display panel fragment.

Description

Technical Field

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

[0002] Liquid crystal display devices have advantages such as being thin and light, having low power consumption, and having a long lifespan, and have been widely used. Figure 1 A partial cross-sectional view of a display device provided in the prior art, such as Figure 1 As shown, the liquid crystal display device includes a backlight module 10', a frame 20', and a display panel 30'. The backlight module 10' includes a back plate 11', a lamp strip 12', a light guide plate 13', and an optical film 14'. The light guide plate 13' and the optical film 14' are stacked sequentially on the back plate 11'. The lamp strip 12' is connected to the back plate 11' and is located on the side of the light guide plate 13'. The frame 20' is supported on the back plate 11'. The display panel 30' is supported on the frame 20' and is located above the optical film 14'.

[0003] A major defect in the manufacturing process of the display device is foreign matter on the surface of the backlight module (i.e., foreign matter 60' is present in the display area 70' of the backlight module 10'). The foreign matter 60' is mostly composed of frame debris and glass debris, and its main sources are: (1) the surface of the frame 20' is not smooth and has burrs during molding, and the burrs fall off to form frame debris; (2) the glass display panel 30' is not cleaned properly due to cutting and grinding processes; (3) after the display device is assembled, the display panel 30' shakes relative to the frame 20' and scratches the frame 20', producing frame debris. The foreign matter 60' generated for the above reasons enters the display area 70' of the backlight module 10' through the gap 40' between the display panel 30' and the frame 20', thus causing the above defect.

[0004] Figure 2 A partial cross-sectional view of another display device provided in the prior art, in order to solve the above-mentioned technical problems, such as Figure 2 As shown, the display device has double-sided adhesive tape 50' positioned between the frame 20' and the display panel 30'. This serves two purposes: firstly, it secures the display panel 30' and reduces scratches between it and the frame 20'; secondly, it blocks foreign objects 60' from entering the backlight module 10' display area 70'. However, after assembly, the display device undergoes a series of tests. Display devices that fail these tests require disassembly and rework of the display panel. The aforementioned double-sided adhesive tape 50' not only reduces rework efficiency but also increases the risk of fragmentation of the display panel 30'.

[0005] Therefore, there is an urgent need for a display device to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a display device that not only prevents foreign objects such as frame debris and glass shards from reaching the display area, but also facilitates disassembly and rework, and the rework process is less likely to cause display panel fragments.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The display device includes:

[0009] A backlight module includes a back panel, a light strip, and a light guide plate. The light strip is mounted on the back panel. The light guide plate includes a main body and an annular support. The main body is connected to the back panel. The annular support protrudes from the side of the main body away from the back panel. The inner side of the annular support is a display area.

[0010] A plastic frame, which is connected to the back plate and located outside the annular support portion;

[0011] The display panel is pressed against the annular support and spaced apart from the frame.

[0012] As an optional solution, the backlight module also includes an outer frame and foam. The outer frame is mounted on the plastic frame and extends to the upper side of the display panel. The foam is sandwiched between the outer frame and the display panel so that the display panel is pressed against the annular support.

[0013] As an optional solution, the frame includes a first fixing part, which is circumferentially disposed on the outside of the annular support and bonded to the main body by a first double-sided adhesive.

[0014] As an alternative, the first fixing part includes a first surface disposed opposite to the annular support part, a first gap is formed between the first surface and the annular support part, and the first double-sided adhesive extends to the bottom of the first gap.

[0015] As an optional solution, the frame further includes a second fixing part and a connecting part. The second fixing part is connected to the top of the back panel, and the connecting part connects the first fixing part and the second fixing part. The connecting part includes a second surface, which is opposite to the end face of the display panel and perpendicular to the main body. The distance between the end face of the display panel and the second surface is L1. The first surface is perpendicular to the main body, and the distance between the first surface and the second surface is L2, where L2 > L1.

[0016] As an alternative, the annular support includes an outer annular surface, which is disposed opposite to the first fixing part; the outer annular surface is inclined toward the first fixing part in a direction away from the main body, and the cross-section of the annular support gradually increases.

[0017] As an alternative, a second gap is formed between the surface of the display panel facing the light guide plate and the top of the first fixing part in a direction perpendicular to the main body.

[0018] As an optional solution, the first double-sided tape is black double-sided tape.

[0019] As an optional embodiment, the display device further includes an optical film mounted on the main body and located within the annular support portion. The annular support portion includes an inner annular surface, which is opposite to the optical film and perpendicular to the main body.

[0020] As an alternative, the main body and the annular support are integrally formed.

[0021] The beneficial effects of this utility model are:

[0022] The display device of this utility model includes a light guide plate comprising a main body and an annular support portion protruding from the main body on the side away from the back plate. The inner side of the annular support portion is the display area of ​​the display device, while the frame is located on the outer side of the annular support portion. After the display panel is pressed against the annular support portion, the annular support portion forms a ring-shaped protection for the display area. That is to say, the annular support portion isolates glass shards that have not been cleaned off the edge of the display panel and frame debris that has fallen from the frame outside the display area, thereby avoiding the problem of foreign matter on the surface of the backlight module of the display device. Furthermore, the gap between the display panel and the frame prevents the display panel from scratching the frame even if it shifts position, thereby reducing the generation of frame debris and further reducing the risk of foreign matter entering the display area. In addition, the structure in which the display panel is pressed against the annular support portion can not only achieve the installation and fixation of the display panel without the need for tape, but also makes the disassembly of the display panel more convenient. This not only ensures efficiency during heavy work, but also reduces the problem of display panel fragmentation during heavy work. Attached Figure Description

[0023] Figure 1 This is a partial cross-sectional view of a display device provided by existing technology;

[0024] Figure 2 This is a partial cross-sectional view of another display device provided by existing technology;

[0025] Figure 3This is a partial cross-sectional view of the display device provided in a specific embodiment of this utility model;

[0026] Figure 4 This is a top view of the light guide plate provided in a specific embodiment of this utility model;

[0027] Figure 5 This is a longitudinal sectional view of the light guide plate provided in a specific embodiment of this utility model;

[0028] Figure 6 This is a cross-sectional view of a portion of the structure of the display device provided in a specific embodiment of this utility model.

[0029] In the picture:

[0030] 10′ Backlight module; 11′ Back panel; 12′ LED strip; 13′ Light guide plate; 14′ Optical film; 20′ Frame; 30′ Display panel; 40′ Gap; 50′ Double-sided adhesive; 60′ Foreign object; 70′ Display area;

[0031] 10. Backlight module; 11. Back panel; 111. Bottom plate; 112. Side panel; 113. Top plate; 12. Lamp strip; 13. Light guide plate; 131. Main body; 132. Annular support; 1321. Outer annular surface; 1322. Inner annular surface; 14. Display area;

[0032] 20. Frame; 21. First fixing part; 211. First surface; 22. Second fixing part; 23. Connecting part; 231. Second surface; 24. Snap-fit ​​protrusion; 25. Outer side;

[0033] 30. Display panel;

[0034] 41. First double-sided tape; 42. Second double-sided tape;

[0035] 51. First spacer; 52. Second spacer; 53. Third spacer;

[0036] 60. Optical films;

[0037] 70. Outer frame; 71. Vertical panel; 711. Clip hole; 72. Horizontal panel;

[0038] 80. Foam. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] This embodiment provides a display device. Figure 3 This is a partial cross-sectional view of the display device provided in a specific embodiment of this utility model. Figure 4 This is a top view of the light guide plate 13 provided in a specific embodiment of this utility model; as shown... Figure 3 and Figure 4 As shown, the display device includes a backlight module 10, a frame 20, and a display panel 30. The backlight module 10 includes a back plate 11, LED strips 12, and a light guide plate 13, both of which are mounted on the back plate 11. The light guide plate 13 includes a main body 131 and an annular support 132. The main body 131 is flat and connected to the back plate 11. The annular support 132 protrudes from the side of the main body 131 opposite to the back plate 11. The frame 20 is connected to the back plate 11 and located outside the annular support 132. The display panel 30 is pressed against the annular support 132.

[0044] In this utility model's display device, the display panel 30 is pressed against the annular support portion 132, and the inner side of the annular support portion 132 is the display area 14 of the display device. The frame 20 is located on the outer side of the annular support portion 132. This arrangement allows the annular support portion 132 to form a protective ring around the display area 14, thereby isolating glass shards that have not been cleaned from the edge of the display panel 30 and frame 20 debris that has fallen from the frame 20 from the outside of the display area 14, thus avoiding the problem of foreign matter on the surface of the backlight module 10 of the display device; furthermore... A gap is formed between the display panel 30 and the frame 20, so even if the display panel 30 moves, it is not easy to scratch the frame 20, thereby reducing the generation of debris from the frame 20 and further reducing the risk of foreign objects entering the display area 14. In addition, the structure in which the display panel 30 is pressed against the annular support 132 can not only fix the display panel 30, but also eliminate the need for tape, making the disassembly of the display panel 30 more convenient. This not only ensures efficiency during heavy work, but also reduces the problem of display panel 30 fragments during heavy work.

[0045] In this embodiment, the main body 131 and the annular support 132 are integrally formed. This arrangement reduces the number of parts and improves the assembly efficiency of the display device. Furthermore, it eliminates gaps between the annular support 132 and the main body 131, thus better preventing foreign objects from entering the display area 14.

[0046] like Figure 3 As shown, the backplate 11 includes a bottom plate 111 and a side plate 112, with the bottom plate 111 perpendicular to the side plate 112. The main body 131 of the light guide plate 13 is flat and is fixed to the bottom plate 111 with double-sided adhesive. The lamp strip 12 is fixed to the side plate 112 and is positioned opposite to the end face of the main body 131, thereby forming a side-lit backlight module 10. Figure 3 As shown, the back panel 11 also includes a top panel 113, which is connected to the side panel 112 and is disposed opposite to the bottom panel 111. The frame 20 is fixedly connected to the top panel 113. Specifically, the frame 20 includes a second fixing part 22, which is located on the upper side of the top panel 113 and is bonded to the top panel 113 by a second double-sided adhesive 42.

[0047] like Figure 3As shown, the display device also includes an outer frame 70 and foam 80. The outer frame 70 is mounted on the frame 20 and extends to the upper side of the display panel 30, covering the edge area of ​​the display panel 30. The foam 80 is sandwiched between the outer frame 70 and the display panel 30, thereby pressing the display panel 30 against the annular support 132. After the outer frame 70 is installed and fixed, the display panel 30 can be pressed and fixed without the need for additional connecting parts. After the outer frame 70 is removed from the frame 20, both the foam 80 and the display panel 30 can be directly removed. The structure is simple and easy to assemble and disassemble. In addition, the foam 80 can ensure the pressing and fixing effect of the display panel 30 without causing the display panel 30 to break due to the pressure.

[0048] In this embodiment, the frame 20 further includes an outer side portion 25, which is connected to the second fixing portion 22 and located outside the side plate 112. The outer frame 70 is L-shaped and includes a horizontal plate 72 and a vertical plate 71. The horizontal plate 72 is located on the upper side of the frame 20 and extends to the upper side of the display panel 30, while the vertical plate 71 is located on the outer side of the outer side portion 25, thereby protecting the backlight module 10 and the frame 20. Optionally, the outer frame 70 is supported by a metal material. Optionally, a snap-fit ​​protrusion 24 is provided on the outer side portion 25, and a snap-fit ​​hole 711 is provided on the vertical plate 71. The snap-fit ​​hole 711 is snapped into the snap-fit ​​protrusion 24, thereby fixing the outer frame 70. It is understood that screws or other fasteners can also be used to connect the outer frame 70 and the frame 20 to ensure the firmness of the connection of the outer frame 70.

[0049] Figure 5 This is a longitudinal sectional view of the light guide plate 13 provided in a specific embodiment of this utility model, as shown below. Figure 3 and Figure 5 As shown, the display device also includes an optical film 60, which is mounted on the main body 131 and located within the annular support 132. The annular support 132 includes an inner annular surface 1322, which faces the optical film 60 and is perpendicular to the main body 131. This arrangement avoids interference between the annular support 132 and the installation of the optical module, thereby improving the ease of assembling the optical film 60.

[0050] Figure 6 This is a cross-sectional view of a portion of the structure of the display device provided in a specific embodiment of this utility model, such as... Figure 3 and Figure 6As shown, the frame 20 also includes a first fixing part 21 and a connecting part 23. The first fixing part 21 is arranged around the outside of the annular support part 132, and the connecting part 23 connects the first fixing part 21 and the second fixing part 22. The first fixing part 21 is bonded to the main body 131 of the light guide plate 13 by a first double-sided adhesive 41. After the first fixing part 21 is bonded to the main body 131, the channel entering the backlight module 10 is blocked, thereby preventing foreign objects from entering the backlight module 10 and falling on the end face of the lamp strip 12 or the light guide plate 13, ensuring the display effect.

[0051] like Figure 6 As shown, the first fixing part 21 includes a first surface 211 disposed opposite to the annular support part 132, and a first gap 51 is formed between the first surface 211 and the annular support part 132. A first double-sided adhesive 41 extends to the bottom of the first gap 51. With this configuration, even if impurities enter the first gap 51, they will be adhered by the first double-sided adhesive 41, thereby preventing the impurities from continuing to move into the display area 14 or the backlight module 10. Optionally, the first double-sided adhesive 41 is black double-sided adhesive, thereby preventing light leakage from the first gap 51.

[0052] like Figure 5 and Figure 6 As shown, the annular support portion 132 also includes an outer annular surface 1321, which is disposed opposite to the first fixing portion 21. Along the direction away from the main body portion 131, the outer annular surface 1321 is inclined towards the first fixing portion 21, and the cross-section of the annular support portion 132 gradually increases. This arrangement, on the one hand, ensures that the portion of the main body portion 131 of the light guide plate 13 located outside the annular support portion 132 has a sufficiently large surface area to increase the connection area between the first fixing portion 21 and the main body portion 131, improving the reliability of the frame 20 fixation; on the other hand, it maximizes the contact area between the annular support portion 132 and the display panel 30, ensuring the stability of the display panel 30 support and preventing stress concentration in the display panel 30; furthermore, when impurities enter the first spacer portion 51, the inclined outer annular surface 1321 can prevent the impurities from falling out again, thus preventing the impurities from moving to other positions.

[0053] like Figure 6 As shown, along a direction perpendicular to the main body 131, a second spacer 52 is formed between the surface of the display panel 30 facing the light guide plate 13 and the top of the first fixing part 21, and the second spacer 52 communicates with the first spacer 51. The provision of the second spacer 52 can prevent impurities from accumulating in the contact area between the annular support part 132 and the display panel 30, thereby better preventing impurities from entering the display area 14 and avoiding the problem of surface foreign matter in the display device.

[0054] like Figure 6 As shown, the connecting portion 23 of the frame 20 includes a second surface 231, which is perpendicular to the main body 131 and opposite to the end face of the display panel 30. A third spacer 53 is formed between the second surface 231 and the display panel 30, and the third spacer 53 is connected to the second spacer 52. The distance between the end face of the display panel 30 and the second surface 231 is L1. The first surface 211 of the first fixing portion 21 is perpendicular to the main body 131, and the distance between the first surface 211 and the second surface 231 is L2, where L2 > L1. This arrangement allows the third spacer 53, the second spacer 52, and the first spacer 51 to form a tortuous channel, which can minimize the movement of foreign objects within the channel, thereby further reducing the entry of impurities into the display area 14 through the contact point between the annular support portion 132 and the display panel 30.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, based on the concept of this utility model, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A display device, characterized in that, include: A backlight module (10) includes a back plate (11), a light strip (12), and a light guide plate (13). The light strip (12) is mounted on the back plate (11). The light guide plate (13) includes a main body (131) and an annular support (132). The main body (131) is connected to the back plate (11). The annular support (132) protrudes from the side of the main body (131) away from the back plate (11). The inner side of the annular support (132) is a display area (14). A plastic frame (20) is connected to the back plate (11) and is located outside the annular support (132); The display panel (30) is pressed against the annular support (132) and spaced apart from the frame (20).

2. The display device as claimed in claim 1, characterized in that, The backlight module (10) also includes an outer frame (70) and foam (80). The outer frame (70) is mounted on the frame (20) and extends to the upper side of the display panel (30). The foam (80) is sandwiched between the outer frame (70) and the display panel (30) so that the display panel (30) is pressed against the annular support (132).

3. The display device as claimed in claim 1, characterized in that, The frame (20) includes a first fixing part (21), which is arranged around the outside of the annular support part (132) and is bonded to the main body part (131) by a first double-sided adhesive (41).

4. The display device as claimed in claim 3, characterized in that, The first fixing part (21) includes a first surface (211) disposed opposite to the annular support part (132), a first gap (51) is formed between the first surface (211) and the annular support part (132), and the first double-sided adhesive (41) extends to the bottom of the first gap (51).

5. The display device as claimed in claim 4, characterized in that, The frame (20) further includes a second fixing part (22) and a connecting part (23). The second fixing part (22) is connected to the top of the back plate (11), and the connecting part (23) connects the first fixing part (21) and the second fixing part (22). The connecting part (23) includes a second surface (231). The second surface (231) is opposite to the end face of the display panel (30) and perpendicular to the main body (131). The distance between the end face of the display panel (30) and the second surface (231) is L1. The first surface (211) is perpendicular to the main body (131), and the distance between the first surface (211) and the second surface (231) is L2, where L2 > L1.

6. The display device as claimed in claim 3, characterized in that, The annular support portion (132) includes an outer annular surface (1321), which is disposed opposite to the first fixing portion (21); along the direction away from the main body portion (131), the outer annular surface (1321) is inclined toward the first fixing portion (21), and the cross-section of the annular support portion (132) gradually increases.

7. The display device as claimed in claim 3, characterized in that, Along a direction perpendicular to the main body (131), a second spacer (52) is formed between the surface of the display panel (30) facing the light guide plate (13) and the top of the first fixing part (21).

8. The display device as claimed in claim 3, characterized in that, The first double-sided tape (41) is black double-sided tape.

9. The display device according to any one of claims 1-8, characterized in that, The display device further includes an optical film (60), which is mounted on the main body (131) and located inside the annular support (132). The annular support (132) includes an inner annular surface (1322), which is opposite to the optical film (60) and perpendicular to the main body (131).

10. The display device according to any one of claims 1-8, characterized in that, The main body (131) and the annular support (132) are integrally formed.

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