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1. (WO2018040557) LIGHT RAY COLLIMATING STRUCTURE, SUBSTRATE AND MANUFACTURING METHOD FOR SAME, BACKLIGHT MODULE AND DISPLAY DEVICE

Pub. No.:    WO/2018/040557    International Application No.:    PCT/CN2017/079286
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sun Apr 02 01:59:59 CEST 2017
IPC: F21V 7/04
G02B 27/30
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: TAN, Jifeng
谭纪风
WANG, Wei
王维
GAO, Jian
高健
YANG, Yafeng
杨亚锋
CHEN, Xiaochuan
陈小川
Title: LIGHT RAY COLLIMATING STRUCTURE, SUBSTRATE AND MANUFACTURING METHOD FOR SAME, BACKLIGHT MODULE AND DISPLAY DEVICE
Abstract:
Disclosed are a light ray collimating structure (11), a light ray collimating substrate (10) and a manufacturing method for same, a backlight module (1) and a display device (2), the light ray collimating structure (11) comprising a lens (100) and a curved mirror (200). The lens (100) has a first principal axis (111) and a first focal point (112). The curved mirror (200) has a second principal axis (211) and a second focal point (212). The curved mirror (200) is arranged around the lens (100). In addition, the first principal axis (111) coincides with the second principal axis (211) and the first focal point (112) and coincides with the second focal point (212), in order for the light rays emitted from the first focal point (112) or the second focal point (212) to be transmitted through the lens (100) or reflected by the curved mirror (200), and then collimated into parallel light rays parallel to the first principal axis (111) and the second principal axis (211). The light ray collimating structure (11) for collimating light rays improves the utilization of light energy and in turn reduces the power consumption of a display panel (3).