Shading structure for improving light leakage of liquid crystal display module

By using appropriate light shielding sheets and light shielding glue to fill the gaps on the liquid crystal display module, the light leakage problem caused by the backlight module and display screen gaps is solved, and the display effect is significantly improved.

CN222213148UActive Publication Date: 2024-12-20TRULY SEMICON
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Patent Information

Application Number
CN202420702883.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-07
Publication Date
2024-12-20
Estimated Expiration
2034-04-07

AI Technical Summary

Technical Problem

The existing LCD display modules have light sources exposed due to the gap between the backlight module and the display screen, causing light leakage around them, affecting the display effect.

Method used

The surface of the display module body is covered with light shielding tape, and the gap is filled with light shielding tape. The light shielding tape is matched with the backlight module, and the adhesive layer ensures a bond. The black light shielding tape and thin layer of light shielding tape are used to prevent light sources from leaking.

Benefits of technology

Effectively prevent the light source of the backlight module from leaking out of the gap, improve the display effect of the display module, and enhance the light shading effect.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a shading structure for improving light leakage of a liquid crystal display module, which comprises a display module body, the display module body comprises a display screen and a backlight module, the surface of the display module body is provided with a shading sheet for shading light, and the shading sheet covers the surfaces of the display screen and the backlight module. The shading structure has the effect of shading the gap between the display screen and the backlight module so as to prevent a light source in the backlight module from leaking from the gap.
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Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a light shielding structure for improving light leakage of a liquid crystal display module. Background Art

[0002] Liquid crystal display devices are widely used in various information, communication and consumer electronic products. The liquid crystal display module is mainly composed of a backlight module and a liquid crystal display screen. The backlight module provides light for the liquid crystal display screen, and the light source is projected into the liquid crystal display screen to form a display screen of various colors.

[0003] After the LCD screen and the backlight module in the prior art are assembled, there is a gap between the LCD screen and the backlight module, so that the light source in the backlight module leaks out through the gap, causing light leakage around the display module, thereby affecting the display effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a light shielding structure for improving light leakage of a liquid crystal display module.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A shading structure for improving light leakage of a liquid crystal display module comprises: a display module body, the display module body comprising a display screen and a backlight module, a shading sheet for shading light is arranged on the surface of the display module body, the shading sheet covers the surfaces of the display screen and the backlight module, the display screen consists of a display area in the middle and a non-display area arranged outside the display area, the shading sheet is hollowed out relative to the range of the display area, and the shading sheet covers the position of the display screen except the display area.

[0007] In one embodiment, the display screen is accommodated in the backlight module, the size of the shading sheet is matched with the size of the backlight module, and the shading sheet is attached to the surfaces of the display screen and the backlight module.

[0008] In one embodiment, the shading sheet is a black shading sheet.

[0009] In one embodiment, an adhesive layer for pasting is provided on a side of the shading sheet facing the display module body.

[0010] In one embodiment, the thickness of the shading sheet is 0.2 mm.

[0011] In one embodiment, a light shielding glue is provided between the display screen and the backlight module for further light shielding.

[0012] In one embodiment, the light-shielding adhesive is disposed along the outer circumferential direction of the display screen, and the light-shielding adhesive fills a gap between the display screen and the backlight module.

[0013] In one embodiment, the thickness of the light-shielding glue is 0.1 mm.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] 1. A shading structure for improving light leakage of a liquid crystal display module of the utility model is provided with a shading sheet to cover the surface of the display module body so as to cover the gap between the display screen and the backlight module. The shading sheet has a shading effect and can prevent the light source of the backlight module from leaking out of the gap and causing light leakage around the display module body, thereby improving the display effect of the display module body.

[0016] 2. A light shielding structure for improving light leakage of a liquid crystal display module of the utility model is provided with a light shielding glue to fill the gap between the display screen and the backlight module, so as to further prevent the light source in the backlight module from leaking out of the gap between the display screen and the backlight module, thereby achieving a light shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 A schematic structural diagram of a light shielding structure for improving light leakage of a liquid crystal display module provided by the utility model;

[0019] Figure 2 A schematic diagram of the side structure of a light shielding structure for improving light leakage of a liquid crystal display module provided by the utility model;

[0020] Figure 3 A schematic diagram of the front structure of a light shielding sheet in a light shielding structure for improving light leakage of a liquid crystal display module provided by the utility model;

[0021] Figure 4 The utility model provides a schematic diagram of the side structure of a light shielding sheet in a light shielding structure for improving light leakage of a liquid crystal display module.

[0022] Description of the drawings: 10. Display module body; 20. Display screen; 21. Display area; 22. Non-display area; 30. Backlight module; 40. Shading sheet; 50. Adhesive layer; 60. Shading glue. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A light shielding structure for improving light leakage of a liquid crystal display module, referring to Figure 1 and Figure 2 , including a display module body 10, the display module body 10 includes a display screen 20 and a backlight module 30. The backlight module 30 is recessed inward to form a receiving groove for receiving the display screen 20, the display screen 20 is received in the receiving groove in the backlight module 30, and the backlight module 30 wraps around the display screen 20 so that the display screen 20 is located in the backlight module 30.

[0025] Reference Figure 1 and Figure 2 A shading sheet 40 for shading is provided on the surface of the display module body 10. The shading sheet 40 is attached to the surfaces of the display screen 20 and the backlight module 30. The size of the shading sheet 40 is adapted to the size of the backlight module 30, so that when the shading sheet 40 is attached to the surface of the display module body 10, the shading sheet 40 covers the display screen 20 and the backlight module 30.

[0026] Reference Figure 1 and Figure 2 The shading sheet 40 is a black shading sheet with good shading effect. The shading sheet 40 is used to cover the surface of the display module body 10. The shading sheet 40 covers the gap between the display screen 20 and the backlight module 30 to prevent the light source in the backlight module 30 from leaking out of the gap.

[0027] Further, refer to Figure 3 and Figure 4 A bonding layer 50 for pasting is provided on the side of the shading sheet 40 facing the surface of the display module body 10, and the shading sheet 40 is attached to the surface of the display module body 10 through the bonding layer 50, so that the shading sheet 40 and the display module body 10 are bonded and fixed.

[0028] Reference Figure 1 and Figure 3 The display screen 20 is composed of a display area 21 in the middle and a non-display area 22 located around the display area 21. The display area 21 is the display area of ​​the display screen 20, which is used to display various colors of display images. The non-display area 22 is the border area of ​​the display screen 20 and does not display. The light shielding sheet 40 is hollowed out relative to the display area 21 of the display screen 20. The light shielding sheet 40 does not cover the display area 21 of the display screen 20. The light shielding sheet 40 covers the position of the display screen 20 except the display area 21 to avoid affecting the normal display function of the display screen 20.

[0029] Further, refer to Figure 4 , the thickness of the shading sheet 40 is 0.2 mm.

[0030] Reference Figure 2A light shielding glue 60 for further light shielding is provided between the display screen 20 and the backlight module 30. The light shielding glue 60 is provided along the outer circumferential direction of the display screen 20. The light shielding glue 60 is provided in a square shape. The light shielding glue 60 is located between the display screen 20 and the backlight module 30 to fill the gap between the display screen 20 and the backlight module 30. The light shielding glue 60 has a light shielding effect, which can effectively prevent the light source in the backlight module 30 from leaking out of the gap between the display screen 20 and the backlight module 30, thereby achieving a further light shielding effect.

[0031] Reference Figure 2 The thickness of the light-shielding glue 60 is 0.1 mm.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A light shielding structure for improving light leakage of a liquid crystal display module, characterized in that: include: A display module body (10), the display module body (10) comprising a display screen (20) and a backlight module (30), a light shielding sheet (40) for shielding light being arranged on the surface of the display module body (10), the light shielding sheet (40) covering the surfaces of the display screen (20) and the backlight module (30), the display screen (20) comprising a display area (21) in the middle and a non-display area (22) arranged at the periphery of the display area (21), the light shielding sheet (40) being hollowed out relative to the range of the display area (21), the light shielding sheet (40) covering the position of the display screen (20) other than the display area (21).

2. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 1, characterized in that: The display screen (20) is accommodated in the backlight module (30), the size of the light shielding sheet (40) is adapted to the size of the backlight module (30), and the light shielding sheet (40) is attached to the surfaces of the display screen (20) and the backlight module (30).

3. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 2, characterized in that: The shading sheet (40) is a black shading sheet.

4. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 2, characterized in that: A bonding layer (50) for bonding is provided on the side of the light shielding sheet (40) facing the display module body (10).

5. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 2, characterized in that: The thickness of the light shielding sheet (40) is 0.2 mm.

6. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 1, characterized in that: A light shielding glue (60) for further shielding is provided between the display screen (20) and the backlight module (30).

7. The shading structure for improving light leakage of a liquid crystal display module according to claim 6, characterized in that: The light shielding glue (60) is arranged along the outer circumferential direction of the display screen (20), and the light shielding glue (60) fills the gap between the display screen (20) and the backlight module (30).

8. The light shielding structure for improving light leakage of a liquid crystal display module according to claim 7, characterized in that: The thickness of the light-shielding glue (60) is 0.1 mm.