Display module for improving anti-vibration level

Abstract

The utility model relates to the technical field of display modules, in particular to a display module capable of improving the anti-vibration level. The liquid crystal display comprises a covering part, a polaroid, an LCD module and a backlight structural part, the LCD module is of an upper-layer structure and a lower-layer structure. The front face and the back face of the LCD module are each provided with a layer of polaroid. The polaroid and the LCD module are combined to form an integrated structural member; the upper portion of the structural part is connected with the covering part through a layer of attaching glue. The lower part of the structural member is connected with the backlight structural member to form a whole; protruding backlight walls used for supporting are arranged along the two sides of the backlight structural part. An adhesive layer is arranged on the backlight wall and used for auxiliary fixation between the covering part and the backlight structural part. According to the utility model, when the cover plate is vibrated by the structural member, vibration energy is released (energy is slowed down) through the backlight wall, so that the influence of vibration on the display screen is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to display module technical field, especially a kind of display module of promotion anti-vibration grade. BACKGROUND

[0002] With current electric vehicle, especially electric bicycle, electric motorcycle, etc. Increasingly popular, high-frequency vibration (generally defined in 5G acceleration or above) is also the trend requirement of high-end market, and some models even require 10G acceleration, 15G acceleration vibration condition. This has higher and more detailed requirements for the structural design of instrument, especially the design of display module.

[0003] Based on the above background, to solve the problems encountered in actual products, the present application tries to improve the anti-vibration ability of LCD or TFT module, optimize the internal design of module, and find some breakthrough points.

[0004] As Figure 1 As shown in the usual display module structure design, various assembly tolerances and gaps need to be considered, such as between the display screen and the backlight, between the metal frame and the display screen, sometimes foam is added between these structural parts as a buffer. Such display module can pass the conventional reliability verification. But facing the test requirements of high reliability requirements, especially high vibration requirements, such as 5G, 10G, even 15G acceleration test (non-mechanical impact), because of the existence of design assembly gap, during vibration, there is mutual displacement between the structural parts of the module---X / Y / Z three directions will exist, the display module vibrates with the vibration machine together, but there will be different frequency / different amplitude vibration between the structural parts, when the machine frequency is in a certain frequency range, the vibration frequency of each structural part and the machine frequency will reach the "resonance" condition. When the "resonance" condition is met, it may affect the display screen, especially the display screen, which may affect the display picture.

[0005] Especially, during the vibration process, vibration energy will be transmitted to the surface cover plate along the structural part, the cover plate itself will also reciprocate with the structural part, and the vibration energy will also be transmitted to the display screen surface along the full-laminated glue. Vibration thus causes "vibration" of display picture, affecting display quality.

[0006] The above phenomenon often occurs at the edge of the liquid crystal display screen and the cover plate laminated layer, such as 5-20mm range, spreading inwards along the laminated edge. UTILITY MODEL CONTENTS

[0007] The utility model aims at the problems in the background art, and proposes a display module for improving the anti-vibration level.

[0008] The utility model discloses a technical scheme, a display module of promoting anti -vibration level, including cover piece, polaroid, LCD module, backlight structure piece,

[0009] The LCD module is two-layer structure of up and down, and one layer of polaroid is arranged on the front and back of the LCD module, the polaroid and the LCD module are combined to form an integral structure, the upper portion of the structure is connected with the cover piece through a layer of sticking glue, and the lower portion of the structure is connected with the backlight structure piece to form a whole.

[0010] The protruding backlight wall for supporting is arranged on the both sides of the backlight structure piece.

[0011] The adhesive layer is arranged on the backlight wall to assist the fixing between the cover piece and the backlight structure piece.

[0012] Preferably, the cover piece is a cover plate or a TP touch screen.

[0013] Preferably, the adhesive layer comprises a first adhesive and a second adhesive.

[0014] The first adhesive is arranged on the top of the backlight wall, and the first adhesive is adhesively fixed with the bottom of the cover piece.

[0015] The second adhesive is arranged on the inner side of the backlight wall and adhesively fixed between the LCD module and the backlight structure piece.

[0016] Preferably, the first adhesive is a strong adhesive tape or glue.

[0017] Preferably, the second adhesive is a foam adhesive with elasticity.

[0018] Preferably, the thickness of the foam adhesive is determined by the gap between the LCD module and the backlight structure piece.

[0019] Preferably, the backlight wall is increased upward, and the distance between the backlight wall and the cover piece is less than 5mm.

[0020] Preferably, the bottom of the backlight structure piece is reserved with screw positions, and the screw positions are locked and fixed through bolts.

[0021] Preferably, one side of the LCD module is provided with a driving IC.

[0022] Preferably, one end of the LCD module is connected with a flexible FPC extending outward.

[0023] Compared with the prior art, the utility model has the following beneficial technical effects:

[0024] 1. In the utility model, the backlight wall is increased upward (closer to the lower surface of the cover plate) between the sticking glue and the cover plate and the structure, and the strong adhesive tape (or similar glue) is used to fix the backlight wall and the lower surface of the cover plate together.

[0025] 2. This utility model is not only about fixing the two together, but also about making the backlight wall push against the cover plate upwards, so that the cover plate tends to be pushed against and deformed upwards at this position (along the backlight wall); at the same time, combined with the locking of the screw position at the bottom of the backlight, the entire display module is firmly fixed; in this way, when the cover plate is subjected to vibration of the structural components, the vibration energy will first be discharged through the backlight wall (slowing down the energy), thereby reducing the impact of vibration on the display screen itself. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a display module in the prior art;

[0027] Figure 2 This is a schematic diagram of the improved display module in an embodiment of the present invention;

[0028] Figure 3 As an embodiment of this utility model Figure 2 A magnified view of a portion of the image;

[0029] Figure 4 This is a schematic diagram illustrating the uneven display of images in existing display modules.

[0030] Reference numerals: 1. Cover; 2. Adhesive; 3. Polarizing film; 4. LCD module; 5. Backlight structure; 6. Flexible FPC; 7. Driver IC; 8. Backlight wall; 9. Adhesive layer; 91. First adhesive; 92. Second adhesive. Detailed Implementation

[0031] Example 1

[0032] like Figure 2 As shown, the present invention proposes a display module with improved vibration resistance, including a cover 1, a polarizer 3, an LCD module 4, and a backlight structure 5.

[0033] LCD module 4 has a two-layer structure; a polarizer 3 is provided on both the front and back sides of LCD module 4; the polarizer 3 and LCD module 4 are combined to form an integrated structural component; the upper part of the structural component is connected to the cover 1 through a layer of adhesive 2; the lower part of the structural component is connected to the backlight structural component 5 to form an integral whole.

[0034] Protruding backlight walls 8 for support are provided along both sides of the backlight structure 5;

[0035] An adhesive layer 9 is provided on the backlight wall 8 to assist in fixing it to the cover 1 and the backlight structural component 5.

[0036] Preferably, the cover 1 is a cover plate or a TP touch screen.

[0037] Preferably, the adhesive layer 9 comprises a first adhesive 91 and a second adhesive 92.

[0038] The first adhesive 91 is arranged on the top of the backlight wall 8 and is fixed to the bottom of the cover 1.

[0039] The second adhesive 92 is arranged on the inner side of the backlight wall 8 and is fixed between the LCD module 4 and the backlight structure 5.

[0040] In the embodiment, the height of the backlight wall 8 is increased compared with the conventional backlight wall 8, so that the distance between the backlight wall 8 and the cover 1 is less than 5mm.

[0041] In an optional embodiment, the LCD module 4 is provided with a driving IC 7.

[0042] In an optional embodiment, the LCD module 4 is provided with a flexible FPC 6 extending outward.

[0043] In the embodiment, when the cover is vibrated by the structure, the vibration energy is first released through the backlight wall (the energy is slowed down), so that the vibration on the display screen is reduced.

[0044] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the persons skilled in the art without departing from the purpose of the utility model.

Claims

1. A display module with improved anti-vibration level, characterized in that, The cover (1), the polarizer (3), the LCD module (4), the backlight structure (5); The LCD module (4) is a two-layer structure; a layer of polarizer (3) is arranged on the front and back of the LCD module (4); the polarizer (3) and the LCD module (4) are combined to form an integrated structure; the upper part of the structure is connected with the cover (1) through a layer of adhesive (2); the lower part of the structure is connected with the backlight structure (5) to form a whole; The protruding backlight wall (8) for supporting is arranged along the two sides of the backlight structure (5); A layer of adhesive layer (9) is arranged on the backlight wall (8) to assist in fixing between the cover (1) and the backlight structure (5). 2.The display module with improved anti-vibration level according to claim 1, wherein, The cover (1) is a cover plate or a TP touch screen. 3.The display module of claim 1, wherein, The adhesive layer (9) includes a first adhesive (91) and a second adhesive (92); The first adhesive (91) is arranged on the top of the backlight wall (8), and the first adhesive (91) is adhesively fixed with the bottom of the cover (1); The second adhesive (92) is arranged on the inner side of the backlight wall (8) and is adhesively fixed between the LCD module (4) and the backlight structure (5).

4. The display module of claim 3, wherein, The first adhesive (91) is a strong adhesive tape or glue.

5. The display module of claim 3, wherein, The second adhesive (92) is a foam adhesive with elasticity.

6. The display module of claim 5, wherein, The thickness of the foam adhesive is determined by the gap between the LCD module (4) and the backlight structure (5).

7. The display module of claim 1, wherein, The backlight wall (8) is raised upward, so that the distance between the backlight wall (8) and the cover (1) is less than 5mm. 8.The display module with improved anti-vibration level according to claim 1, wherein, The bottom of the backlight structure (5) is reserved with screw positions, and is locked and fixed through bolts.

9. The display module of claim 1, wherein, The LCD module (4) is provided with a drive IC (7) on one side.

10. The display module of claim 1, wherein, The LCD module (4) is connected with a flexible FPC (6) extending outward at one end.

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