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1. (WO2017147953) LIGHT SOURCE, BACKLIGHT MODULE AND DISPLAY DEVICE

Pub. No.:    WO/2017/147953    International Application No.:    PCT/CN2016/077112
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 24 00:59:59 CET 2016
IPC: F21S 8/00
F21V 7/04
F21V 13/02
F21V 8/00
F21Y 115/10
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
深圳市华星光电技术有限公司
WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
武汉华星光电技术有限公司
Inventors: XU, Pengbo
徐鹏博
Title: LIGHT SOURCE, BACKLIGHT MODULE AND DISPLAY DEVICE
Abstract:
A light source (11), a backlight module (10) and a display device (20). The light source (11) comprises luminescent crystals (111) and an optical cavity (112), wherein the luminescent crystals (111) are used for emitting a light ray, and the optical cavity (112) comprises a luminescent portion (121), a transmission portion (122) and a light output portion (123). The luminescent crystals (111) are arranged in the luminescent portion (121). The transmission portion (122) connects the luminescent portion (121) and the light output portion (123). A light output port (1231) of the light output portion (123) is arranged corresponding to a light guide plate (12), and the width of the light output port (1231) is not greater than the thickness of the light guide plate (12). A reflective material (124) is further provided inside the optical cavity, with a part of the light ray emitted by the luminescent crystals (111) directly entering the light guide plate (12), and the other part entering the light guide plate (12) after one or more reflections by the reflective material (124). The above arrangement can improve the utilization rate of light.