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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 9423294 B1

PDFFull Text
Date of Patent:
Aug. 23, 2016

Filed:

Dec. 05, 2012

Display device and optical inputting device with retarders

Applicant:

Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;

Inventors:

Kwang-Hyun Kim, Gunpo-si, KR;

Seung Beom Park, Seoul, KR;

Min Su Kim, Seoul, KR;

Ji-Hoon Kim, Hwaseong-si, KR;

Na Young Shin, Seoul, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., , KR;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Pascal M Bui Pho

Int. Cl.
CPC ...
G02F 1/01 (2006.01); H01J 5/16 (2006.01); G01J 1/04 (2006.01); F21V 9/14 (2006.01); G02F 1/1333 (2006.01); G06F 3/03 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G01J 1/0429 (2013.01); F21V 9/14 (2013.01); G02F 1/13338 (2013.01); G06F 3/03 (2013.01); G02F 2001/133638 (2013.01);
Abstract

A display device includes an upper substrate, a lower substrate disposed opposite to the upper substrate, a photosensor disposed between the upper substrate and the lower substrate, a polarizer disposed on the upper substrate, and a retarder disposed on the polarizer, where light of elliptical polarization from outside is converted by a λ/4 phase difference, and transmitted to the photosensor sequentially through the retarder and the polarizer.

Find Patent Forward Citations

Kim, Kwang-Hyun. (2016). Display device and optical inputting device with retarders (U.S. Patent No. 9423294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9423294

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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