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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 12754446 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Nov. 04, 2025

Viewing angle controllable touch panel device and display device

Applicant:

Tianma Japan, Ltd., Kawasaki, JP;

Inventors:

Shigeru Mori, Kawasaki, JP;

Koji Shigemura, Kawasaki, JP;

Yuichi Uchiyama, Kawasaki, JP;

Hiroshi Haga, Kawasaki, JP;

Mamoru Okamoto, Kawasaki, JP;

Ayuko Imai, Kawasaki, JP;

Tetsuro Tashiro, Kawasaki, JP;

Qijun Yao, Shanghai, CN;

Assignee:

TIANMA JAPAN, LTD., Kawasaki, JP;

Attorney:

NIXON & VANDERHYE

Primary Examiner:

Deeprose Subedi

Int. Cl.
CPC ...
G02F 1/13 (2006.01); G02F 1/1333 (2006.01); G02F 1/167 (2019.01); G06F 3/041 (2006.01); G09G 3/3208 (2016.01); H10K 59/40 (2023.01); H10K 59/50 (2023.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02F 1/13338 (2013.01); G02F 1/167 (2013.01); G06F 3/04164 (2019.05); G09G 3/3208 (2013.01); H10K 59/40 (2023.02); H10K 59/50 (2023.02); G06F 3/0412 (2013.01); G09G 2310/08 (2013.01); G09G 2320/028 (2013.01); G09G 2354/00 (2013.01);
Abstract

A viewing angle controllable touch panel device includes an upper transparent substrate, a lower transparent substrate, one lower viewing angle control electrode on a top face of the lower transparent substrate, lower touch panel electrodes on the top face of the lower transparent substrate, upper touch panel electrodes on an under face of the upper transparent substrate, and electrophoretic elements disposed between the under face of the upper transparent substrate and the top face of the lower transparent substrate. The electrophoretic element includes electrophoretic particles and a dispersion medium. The lower touch panel electrodes are included in a layer upper than the lower viewing angle control electrode. The lower touch panel electrode at least partially overlaps the lower viewing angle control electrode in a planar view. The electrophoretic element is sandwiched between one of the upper touch panel electrodes and the lower viewing angle control electrode.

Find Patent Forward Citations

Mori, Shigeru. (2026). Viewing angle controllable touch panel device and display device (U.S. Patent No. 12754446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12754446

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

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