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Liquid crystal display device

A liquid crystal display device and liquid crystal panel technology, which is applied to lighting devices, lighting device parts, optics, etc., can solve the problems of light leakage at the edge of the liquid crystal display, the light cannot be absorbed, and the black edge of printing cannot be realized, and the side edge can be improved. Light leakage problem, the effect of reducing light

Active Publication Date: 2016-04-13
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, black borders cannot be printed on the composite film and prism sheet, and the light emitted from the gap between the light guide plate and the optical film cannot be absorbed. Therefore, it will cause light leakage at the edge of the liquid crystal display with a three-layer film structure. Phenomenon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Figure 4 Shown is a schematic structural diagram of the liquid crystal display device in the first embodiment provided by the present invention. In the liquid crystal display device provided in this embodiment, a light absorbing layer is formed on the bottom reflection sheet located on the side of the light guide plate close to the back plate to improve the phenomenon of light leakage at the side of the liquid crystal display device.

[0045] Specifically, such as Figure 4 As shown, the liquid crystal display device provided in this embodiment includes:

[0046] LCD panel 100

[0047] A back plate 30 arranged opposite to the liquid crystal panel 100;

[0048] The bottom reflector 60, the light guide plate 40 and the optical film 50 are arranged between the back plate 30 and the liquid crystal panel 100, wherein the bottom reflector 60, the light guide plate 40 and the optical film 50 approach the liquid crystal from the side close to the back plate 30 One side of the panel 1...

Embodiment 2

[0057] Figure 5 Shown is a schematic structural diagram of the second embodiment provided by the present invention. Such as Figure 5 As shown, in this embodiment, the light-absorbing layer 200 is also disposed on the bottom reflector 60. Compared with the first embodiment provided by the present invention, the difference is only that the end of the plastic frame 20 close to the light guide plate 40 is A cavity is formed at a position corresponding to the light guide plate 40 (ie, the second inner end surface 202), and the outer end surface of the light guide plate 40 close to the plastic frame 20 extends into the cavity, so that the light guide plate 40 is far from the back plate 30 There will be a partial overlap between the light emitting surface and the plastic frame 20, and the end of the bottom reflective sheet 60 close to the plastic frame 20 also extends into the cavity. At this time, the light absorbing layer 200 is formed on the bottom reflective sheet 60 near the pla...

Embodiment 3

[0059] Image 6 Shown is a schematic structural diagram of a liquid crystal display device in a third embodiment provided by the present invention. In the liquid crystal display device provided in this embodiment, the light absorbing layer 200 is formed on the lower diffusion sheet of the optical film 50 on the side of the light guide plate 40 away from the back plate 30 to improve the side light leakage of the liquid crystal display device.

[0060] Specifically, such as Image 6 As shown, the liquid crystal display device provided in this embodiment includes:

[0061] LCD panel 100;

[0062] A back plate 30 arranged opposite to the liquid crystal panel 100;

[0063] The bottom reflector 60, the light guide plate 40 and the optical film 50 are arranged between the back plate 30 and the liquid crystal panel 100, wherein the bottom reflector 60, the light guide plate 40 and the optical film 50 approach the liquid crystal from the side close to the back plate 30 One side of the panel 1...

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Abstract

The invention provides a liquid crystal display device. The liquid crystal display device comprises a liquid crystal display panel, a back plate, a bottom reflector, a light guide plate, an optical diaphragm and a rubber frame, wherein the back plate is opposite to the liquid crystal display panel, the bottom reflector, the light guide plate and the optical diaphragm are sequentially arranged from one side close to the back plate to one side close to the liquid crystal display panel, and the rubber frame is arranged outside the bottom reflector, the light guide plate and the optical diaphragm. A gap is reserved between the rubber frame and the optical diaphragm, and a light absorption layer for absorbing light emergent from the light guide plate to the gap is arranged at the position, corresponding the gap, on at least one of one side of the light guide plate far away from the back plate and one side of the light guide plate close to the back plate. Since the light absorption layer is arranged at the corresponding position of the gap between the rubber frame and the optical diaphragm, the light in the light guide plate can be absorbed at the light absorption layer, the light emergent from the gap between the rubber frame and the optical diaphragm is reduced, and the problem of lateral light leakage of the liquid crystal display device is improved.

Description

Technical field [0001] The present invention relates to the field of liquid crystal display technology, and in particular to a liquid crystal display device. Background technique [0002] Liquid crystal displays are currently commonly used flat panel displays, such as figure 1 As shown, a traditional liquid crystal display includes a liquid crystal panel 100 and a backlight module. The backlight module includes a frame 10, a plastic frame 20, a back plate 30, a light guide plate 40, an optical film 50, a bottom reflection sheet 60, etc., wherein the bottom reflection The sheet 60, the light guide plate 40 and the optical film 50 are sequentially arranged from the side close to the back plate 30 to the side far away from the back plate 30. The plastic frame 20 is arranged on the outer side of the bottom reflector 60, the light guide plate 40 and the optical film 50. The optical film 50 usually adopts a four-layer film structure, and is composed of an upper diffuser 51, an upper pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21V13/00
Inventor 王小丽朴炳仁
Owner HEFEI BOE OPTOELECTRONICS TECH
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