BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

• Main Author: TANG, GUOFU
• Format: Patent
• Language: Chinese; English; French
• Published: 14.03.2013
• Subjects: BLASTING; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; WEAPONS

A backlight module and a liquid crystal display device using same. The backlight module includes an LED light group (12) consisting of a group of LEDs (121), a light guide board (15) provided on the side of the LED light group (12) and coupled to the LED, and the backlight module further includes a stop structure for fixing relatively the position between the edge of the light guide board (15) and the LED light group (12). Since a stop structure for fixing relatively the position between the edge of the light guide board (15) and the LED light group (12) is employed, the stop structure defines the position of the edge of the light guide board (15) and can perform trimming on the edge of the light guide board (15) relatively when the tolerance of the light guide board (15) moves up and down, and at the same time can block the light guide board (15) from shifting locally when being heated, so that the coupling rate of the light guide board (15) and the LED light group (12) is improved. L'invention concerne un m