Title:
OPTICAL FILM LAYER STRUCTURE, BACKLIGHT MODULE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/181446
Kind Code:
A1
Abstract:
Disclosed is an optical film layer structure (5) for the convergence of backlight light rays and transmission of detection light rays, the optical film layer structure comprising one or more film layer units (501, 502), the film layer unit (501) comprising a first optical surface (503) and a second optical surface (504), which are disposed opposite each other, wherein the first optical surface (503) is non-planar and comprises a first plane (520); the second optical surface (504) comprises a second plane; the first plane (520) is disposed parallel to and opposite the second plane; the first plane (520) is defined as a first light-transmitting portion; and the first optical surface (503) further comprises a second light-transmitting portion (522). When the detection light rays passes through the first light-transmitting portion (520) and the second plane, which are disposed parallel to and opposite each other, and are transmitted through the film layer unit (501), the direction of propagation of at least some of the detection light rays is unchanged, and convergence occurs when the backlight light rays are incident to the film layer unit (501) and emergent from the second light-transmitting portion (522). A backlight module (4) comprising the optical film layer structure (5), a display device (3), and an electronic apparatus (1) are further provided.
Inventors:
LIN FENG (CN)
TIAN PUYAN (CN)
ZHOU YANG (CN)
TIAN PUYAN (CN)
ZHOU YANG (CN)
Application Number:
PCT/CN2019/077589
Publication Date:
September 17, 2020
Filing Date:
March 11, 2019
Export Citation:
Assignee:
SHENZHEN FUSHI TECH CO LTD (CN)
International Classes:
G02B5/04; G02F1/13357; H04M1/02
Foreign References:
| CN204556876U | 2015-08-12 | |||
| CN206363214U | 2017-07-28 | |||
| CN202503555U | 2012-10-24 | |||
| CN204479779U | 2015-07-15 | |||
| CN205450321U | 2016-08-10 | |||
| CN108885696A | 2018-11-23 | |||
| US20180219987A1 | 2018-08-02 |
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