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:
May. 17, 2022

Filed:

Oct. 12, 2018
Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventor:

Bingchuan Shi, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G02B 27/01 (2006.01); G02F 1/1362 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3152 (2013.01); G02B 27/0172 (2013.01); G02F 1/136277 (2013.01);
Abstract

A light modulating device for a display apparatus includes a light source, and a light modulator including a point illumination source part and a light transmitting part. The point illumination source part is substantially surrounded by the light transmitting part. The point illumination source part is configured to receive polarized light from the light source to form a point illumination source. The point illumination source transmits the polarized light from the light source to a reflective display panel. The light transmitting part is configured to receive light reflected by the reflective display panel and configured to transmit light reflected by the reflective display panel to a light beam collector.


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