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Frame combination of back light module and backlight module using said frame

A technology of backlight module and frame, applied in optics, nonlinear optics, instruments, etc., can solve the problems of damage to frame components, uneven backlight, uneven brightness of display, etc.

Inactive Publication Date: 2007-04-11
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any of the above situations will cause the defect caused by the severe contact of the diaphragm 23 with other components 1 and 231—backlight unevenness (Backlight Mura, a phenomenon in which various traces are caused by uneven brightness of the display)
In addition, if the film 23 has scratches or other defects, the upper diffusion film 234 and the double-sided adhesive tape 11 must be manually scraped off the frame 24 in the process of backlight repair, so as to replace it. action, so not only time-consuming and labor-intensive, but also may damage the frame 24 and other components

Method used

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  • Frame combination of back light module and backlight module using said frame
  • Frame combination of back light module and backlight module using said frame
  • Frame combination of back light module and backlight module using said frame

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Embodiment Construction

[0041] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.

[0042] Referring to FIG. 5 to FIG. 7 , a preferred embodiment of the LCD backlight module of the present invention includes a frame 4 , an optical film set 5 , two cover plates 421 , and two locking devices 42 . Wherein, the optical film group 5 is a combination of a prism film 231 (see FIG. 2 ), a reflective film 232 (see FIG. 2 ) and a diffusion film 233 (see FIG. 2 ) in the liquid crystal display structure in the past, and The frame 4 has a left surface 411 and a right surface 412 .

[0043] In this embodiment, the frame 4 forms a pair of cover plates 421 respectively corresponding to the left and right surfaces 411, 412 during injection molding. The structures of the two cover plates 421 are symmetrical and one end of each cover plate 421 is A connec...

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PUM

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Abstract

The invention relates to a backlight module frame composition and the backlight module using the frame. The frame body composition contains a framework and two card button devices. The framework has a left and a right surface, which can be installed with a convex left ear and a convex right ear of at least one optical patch. Such cards are used to restraint each ear to a corresponding surface that can be released with a scheduled tolerance to allow the ear to displace on the corresponding surface. The backlight module includes the frame composition, an optical patch group and a light resource. The optical patch group has a left and right convex ear that is put on the left and right surface. When the optical patch group is heated and extends to the side with such ears, the cards provide a distance for their expanding.

Description

【Technical field】 [0001] The invention relates to a frame assembly of a backlight module and a backlight module using the frame, in particular to a frame assembly used in the backlight module for setting an optical film and a backlight module of a liquid crystal display. 【Background technique】 [0002] In recent years, with the progress and development of the 3C industry, liquid crystal displays (Liquid Crystal Display, LCD for short) have been widely used in notebook computers, desktop computers, personal digital assistants (PDA, Personal Digital Assistant) and so on. [0003] A liquid crystal display includes a liquid crystal display panel (LCD panel) and a backlight module. Oxide, indium tin oxide) film, alignment film, control circuit and other components. Generally speaking, the backlight module can be divided into two types: direct-lit and side-lit. Since the liquid crystal itself does not emit light, the backlight module must be used to supply sufficient brightness a...

Claims

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Application Information

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IPC IPC(8): G02F1/1335
Inventor 陈伯龙
Owner CHUNGHWA PICTURE TUBES LTD
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