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.:
Date of Patent:
Feb. 04, 2020
Filed:
Mar. 18, 2019
Applicant:
Primax Electronics Ltd., Taipei, TW;
Inventor:
Chung-Yuan Chen, Taipei, TW;
Assignee:
PRIMAX ELECTRONICS LTD., Taipei, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 13/83 (2006.01); H01H 13/702 (2006.01); H03K 17/98 (2006.01); H01H 13/705 (2006.01); H03K 17/969 (2006.01);
U.S. Cl.
CPC ...
H01H 13/83 (2013.01); H01H 13/702 (2013.01); H01H 13/705 (2013.01); H03K 17/969 (2013.01); H03K 17/98 (2013.01); H01H 2219/0023 (2013.01); H01H 2219/056 (2013.01); H01H 2219/062 (2013.01); H01H 2219/0621 (2013.01); H01H 2221/026 (2013.01); H01H 2221/04 (2013.01); H01H 2221/058 (2013.01); H01H 2233/002 (2013.01); H01H 2233/07 (2013.01);
Abstract
A keyboard device includes plural key structures, an electronic paper display element and an illumination module. The electronic paper display element is disposed under the plural key structures. The plural key symbols corresponding to the plural key structures are displayed on the electronic paper display element. The illumination module is disposed over the electronic paper display element to provide a light beam to the electronic paper display element. Consequently, the plural key symbols are illuminated.