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Backlight module and display device

A technology of backlight module and light guide plate, which is applied in the direction of identification device, optics, light guide, etc., and can solve the problem of light leakage at the edge of the through hole

Active Publication Date: 2021-10-08
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a backlight module and a display device to solve the technical problem that light leakage is likely to occur at the edge of the through hole during the hole digging process of the backlight module in the prior art

Method used

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  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like image 3 As shown, the present embodiment provides a backlight module, including reflection sheet 1, light guide plate 2, diffusion sheet 3, a lightning filter 4, through hole 5, an iron frame 6, and a leakage light device 7.

[0039] The reflective sheet 1 is provided at the lower surface of the light guide plate 2, and the diffusion sheet 3 is provided on the upper surface of the light guide plate 2, and the lighting film 4 is provided in the upper surface of the diffusion sheet 3. Among them, the reflective sheet 1 is used to derive the light guide plate 2, and the diffusion sheet 3 is used to reach the light source effect in the atomized light, and the light-enriched film 4 is used to converge light and improve the brightness of the display panel.

[0040] Through hole 5 figure 2 The location is the position where the dashed rectangle frame is located. The through hole 5 sequentially penetrates the reflection sheet 1, the light guide plate 2, the diffusion sheet 3, ...

Embodiment 2

[0052] This embodiment provides a backlight module and a display device including most of the technical features of Example 1, and can achieve the same technical effects, which distinguish between the leakage lighting device provided by the present embodiment further includes a second method. Lane.

[0053] like Figure 4 As shown, the leakage light device 7 includes an integrally formed tubular member 71, a first flange 72, and a second flange 73. The tubular portion 71 is provided in the through hole 5, which is tangent to the inner side wall of the bending portion 61. One end of the first flange member 72 is connected to the edge of the tubular member 71, and the other end is bonded to the surface of the exponged film 4. Among them, the lower surface of the first flange 72 first end is tangentially cut on the upper surface of the light-reducing film 4, and the lower surface of the second end is tangent to the top surface of the bending portion 61. Wherein, the first flange 72 is...

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Abstract

The invention provides a backlight module and a display device. The backlight module includes a light guide plate, a reflection sheet, a diffusion sheet, a light enhancement film, a through hole, an iron frame, and an anti-leakage device; the through hole runs through the reflection sheet in turn. , the light guide plate, the diffusion sheet, and the light enhancement film; the iron frame includes a base plate and a bent portion, and the base plate is bonded to the surface of the reflective sheet away from the light guide plate; the bent portion The part is set in the through hole and is perpendicular to the bottom plate; a part of the anti-leakage device is set in the through hole, and the other part covers the bending part of the iron frame and part of the surface of the light enhancement film. The technical effect of the present invention is to provide a backlight module and a display device, by providing an anti-leakage device in the through hole of the backlight module, so that the light of the light guide plate will not leak at the edge of the through hole, and the effect of preventing light leakage can be realized .

Description

Technical field [0001] The present invention relates to the field of display, and more particularly to a backlight module and a display device. Background technique [0002] like figure 1 As shown, the backlight module includes an iron frame 101, a light guide plate 102, and a light shielding gel 103. In the prior art, the backlight (shown) is generally located on the left side of the light guide plate 102, providing a side-in-side backlight to the display panel, which can be an LED lamp. The light emitted by the backlight is converted to a surface light via the light guide plate 103, and then scatters through the diaphragm to the display panel, thereby implementing the light source to the display panel. The diaphragm is provided at different efficacy on the upper and bottom of the light guide plate 103 such that the backlight module provides brightness and light source to the display panel, so that the display panel can be normally imagined. Among them, the light guide plate 102...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00G02F1/13357G02B6/00
CPCG02B6/005G02F1/133615G09F9/00
Inventor 刘健
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD