A light guide plate having lateral optical structures and a backlight module having the light guide plate

• Main Authors: HUANG, YENANG, CHENG, WEN-YUAN, LIU, KANGUNG
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2010
• 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 ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The present invention discloses a light guide plate and a backlight module comprising the light guide plate. The light guide plate includes a light exit surface, a light entry end and a light refraction end, wherein a plurality of light refraction prism are disposed on the light refraction end. The trend of light refraction prism can be perpendicular to or parallel with or slanted with the length trend of light refraction end. The backlight module includes at least one light source, the light guide plate and an optical film set, wherein the light source is disposed close to the light entry end. The optical film set is disposed on the light exit surface and partly covers the light exit surface, wherein the gap occurs between the edge of optical film set and the tip of light refraction prism.