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Backlight module

A backlight module and module technology, applied in the field of backlight modules, can solve problems such as insurmountable Mura problems, single structure of liquid crystal modules, etc.

Active Publication Date: 2017-06-16
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the existing technology, the present invention provides a backlight module, which solves the insurmountable Mura problem caused by the single structure of the existing liquid crystal module, and reduces the influence of lamp shadows on the viewing effect

Method used

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Embodiment 1

[0028] see figure 1 , is a schematic diagram of the exploded structure of the backlight module according to Embodiment 1 of the present invention. The backlight module includes a light source module 100 , a module light box 200 , a film set 300 and a display panel assembly 400 connected in sequence.

[0029] Wherein, the light source module 100 is used to emit light, and the module light box 200 is used to reflect the light emitted by the light source module 100. at the first open end 210 . The display panel assembly 400 is used to display images, and includes a module front frame 401, a display panel 402 and a plastic frame 403, which are arranged at the second opening end 220. The depth direction is movably disposed between the light source module 100 and the display panel assembly 400 .

[0030] Specifically, the inner surface of the modular light box 200 is coated with a reflective layer or pasted on the inner wall with a reflective film.

[0031] By setting the diaphra...

Embodiment 2

[0037] see Figure 4 , is a schematic exploded view of the structure of the backlight module according to Embodiment 2 of the present invention. Different from Embodiment 1, the second open end 220 of the module light box 200 is provided with a rectangular frame 201 , and the diaphragm group 300 elastically abuts against the rectangular frame 201 and is movable within the rectangular frame 201 .

[0038] In the modular light box 200, the frame part surrounded by trapezoidal panels is connected to the rectangular frame body 201, specifically, the opening of the frame body surrounded by trapezoidal panels extends outwards to form a stepped surface 610 connected to the rectangular frame body 201 , the stepped surface 610 corresponds to the second extreme position where the diaphragm set 300 moves.

[0039] In other embodiments, the frame body surrounded by trapezoidal panels and the rectangular frame body 201 are integrally formed, and the rectangular frame body 201 is stretched...

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Abstract

A backlight module, comprising a light source module (100) for emitting light rays; a module lamp box (200) for reflecting the light rays emitted by the light source module (100), wherein both ends of the module lamp box (200) are provided with openings and a second opening end (220) is greater than a first opening end (210) in size, and the light source module (100) is arranged at the first opening end (210); a display panel assembly (400) arranged at the second opening end (220) and used for displaying images; and a diaphragm group (300) arranged in the module lamp box (200) and movably arranged between the light source module (100) and the display panel assembly (400) in the depth direction of the module lamp box (200). By designing the diaphragm group as a structure capable of moving in the depth direction of the module lamp box (200), the diversified design of the structure of the module lamp box is realized, the problem of Mura generated when a liquid crystal module is viewed at different angles is solved, and the influence of a lamp shadow on the viewing effect is reduced.

Description

technical field [0001] The invention relates to the display field, in particular to a backlight module mainly used in liquid crystal display panels. Background technique [0002] Mura (light shadow and shadow) refers to the phenomenon of various traces caused by uneven brightness of the display. It is mainly due to the visual color difference caused by different frequency responses to the perceived light source, resulting in a certain angle. It may appear that the display effect is not good. [0003] The commonly used direct-type LCD modules on the market have a single structure. When the observer needs to keep watching at a certain angle but the Mura problem occurs at this angle, the general direct-type light box structure cannot meet the needs of use, and there are certain limitations. Contents of the invention [0004] In view of the deficiencies in the prior art, the present invention provides a backlight module, which solves the insurmountable Mura problem caused by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V19/00F21Y115/10
CPCF21S8/00F21V19/00
Inventor 萧宇均石秦珺
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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