The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 09, 2026

Filed:

Jan. 24, 2025
Applicant:

Auo Corporation, Hsinchu City, TW;

Inventors:

Min-Hsuan Chiu, Hsinchu City, TW;

Wei-Ming Cheng, Hsinchu City, TW;

Chao-Min Yang, Hsinchu City, TW;

Assignee:

AUO Corporation, Hsinchu City, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133607 (2021.01); G02B 6/0025 (2013.01); G02B 6/0055 (2013.01); G02F 1/133603 (2013.01);
Abstract

A backlight module includes a switching control unit, a first light source unit disposed below the switching control unit and including a first light source and a first light guide, a second light source unit disposed between the switching control unit and the first light source unit and including a second light source and a second light guide, and a first prism film disposed at a light exit side of the first light guide. In a privacy mode, the second light source is turned off, the first light source is turned on, and the switching control unit modulates light passing the first prism film, so the backlight module has a first light output range. In a share mode, the second light source is turned on, and the switching control unit is deactivated, so the backlight module has a second light output range larger than the first light output range.


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