Backlight module

• Main Authors: LIN, YI-SHIANG, CHIU, CHIA-JUNG, HSU, MING-HUANG, TSENG, KUN-MING
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2008
• Subjects: 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; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A backlight module including a frame and a plurality of light sources is provided. The frame has a bottom surface and a plurality of side surfaces connected to the edges of the bottom surface, wherein the bottom surface has a bottom reflecting region, each of adjacent two of the side surfaces has a first side reflecting region and at least one of any adjacent two of the side surfaces has a second side reflecting region. The second side reflecting region is located between the first side reflecting regions and is adjacent to the corner formed by any adjacent two of the side surfaces. The reflection rate of the second reflecting region is smaller than the reflection rate of the first reflecting regions or the reflection ratio of the bottom reflecting region. The light sources are disposed in the frame.