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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.

Patent No.:

US 10274755 B1

PDFFull Text
Date of Patent:
Apr. 30, 2019

Filed:

Dec. 10, 2014

Beam modulator and display apparatus using the same

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Seunghoon Han, Seoul, KR;

Kanghee Won, Seoul, KR;

Hongseok Lee, Seoul, KR;

Jaeeun Jung, Seoul, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Kimberly N Kakalec

Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/01 (2006.01); G02F 1/29 (2006.01); G03H 1/02 (2006.01); G03H 1/08 (2006.01); G03H 1/22 (2006.01); G02B 27/22 (2018.01); G02B 27/28 (2006.01); G02F 1/1335 (2006.01); G02F 1/1347 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0136 (2013.01); G02B 5/3083 (2013.01); G02B 27/22 (2013.01); G02F 1/133528 (2013.01); G02F 1/29 (2013.01); G03H 1/2294 (2013.01); G02B 27/285 (2013.01); G02F 1/13471 (2013.01); G02F 1/292 (2013.01); G02F 2001/133538 (2013.01); G02F 2001/133622 (2013.01); G02F 2001/133638 (2013.01); G02F 2203/01 (2013.01); G02F 2203/02 (2013.01); G02F 2203/07 (2013.01); G02F 2413/09 (2013.01); G03H 2001/0224 (2013.01); G03H 2001/0858 (2013.01); G03H 2223/19 (2013.01); G03H 2223/20 (2013.01); G03H 2223/22 (2013.01); G03H 2225/33 (2013.01); G03H 2225/36 (2013.01); G03H 2225/55 (2013.01);
Abstract

Disclosed are a beam combining/splitting modulator, a display apparatus including the same, and a spatial light modulation method. The beam combining/splitting modulator includes a light modulator including first and second modulation regions for modulating light, a polarization converter disposed at a side of an emitting surface of the light modulator and including a first transmissive region for polarizing and converting light incident from the first modulation region to have a first polarization and a second transmissive region for polarizing and converting light incident from the second modulation region to have a second polarization, a birefringence modulator disposed at the side of an emitting surface of the polarization converter and switching between a first state in which birefringence occurs and a second state in which birefringence does not occur, and a polarizer disposed at the side of an emitting surface of the birefringence modulator.

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