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1. (WO2017186006) PRISMATIC LENS, PREPARATION METHOD THEREFOR, BACKLIGHT MODULE, AND VR DISPLAY DEVICE

Pub. No.:    WO/2017/186006    International Application No.:    PCT/CN2017/080753
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Tue Apr 18 01:59:59 CEST 2017
IPC: G02B 5/04
G02F 1/13357
G02B 6/00
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
京东方光科技有限公司
Inventors: CHEN, Jialuo
陈家洛
Title: PRISMATIC LENS, PREPARATION METHOD THEREFOR, BACKLIGHT MODULE, AND VR DISPLAY DEVICE
Abstract:
A prismatic lens, a preparation method therefor, a backlight module, and a VR display device. The prismatic lens comprises a substrate (1). The substrate (1) is provided with a light-entrance surface (11) and a light-exit surface (12). The light-entrance surface (11) and the light-exit surface (12) are separately located on a firs side and a second side of the substrate (1) that are opposite to each other. Multiple pits (110) are formed in the light-entrance surface (11). The pits (110) are disposed at an interval, and each pit (110) comprises an opening portion (111), a bottom (113) and an oblique wall portion (112) connecting the opening portion (111) and the bottom (113), and the area of an opening formed by the opening portion (111) is greater than the area of the bottom (113) of the pit (110).