Title:
COLLIMATION DEVICE, OPTICAL FILM, BACKLIGHT MODULE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/228632
Kind Code:
A1
Abstract:
Disclosed is a collimation device, comprising at least one micro-structure part. Each micro-structure part comprises: a bottom face; a side face connected to the bottom face, with an included angle between the side face and the bottom face being an obtuse angle; and a top face opposite the bottom face and connected to the side face, with the top face being a convex freeform surface.
Inventors:
TANG HAI (CN)
GAO LIANG (CN)
ZHANG BING (CN)
GENG XIAOLIN (CN)
GAO LIANG (CN)
ZHANG BING (CN)
GENG XIAOLIN (CN)
Application Number:
PCT/CN2020/089372
Publication Date:
November 19, 2020
Filing Date:
May 09, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI BOE OPTOELECTRONICS TECH (CN)
HEFEI BOE OPTOELECTRONICS TECH (CN)
International Classes:
F21V5/04; G02F1/13357
Foreign References:
| CN209638930U | 2019-11-15 | |||
| CN108845458A | 2018-11-20 | |||
| CN101268387A | 2008-09-17 | |||
| US20100128233A1 | 2010-05-27 | |||
| CN105737099A | 2016-07-06 | |||
| CN202484729U | 2012-10-10 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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