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:
May. 14, 2013
Filed:
Apr. 16, 2010
Applicant:
Chin-chun Huang, Taoyuan, TW;
Inventor:
Chin-Chun Huang, Taoyuan, TW;
Assignee:
Ichia Technologies, Inc., Gueishan, Taoyuan, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/02 (2006.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrophoretic display keypad structure utilizes a whole piece of electrophoretic display film to show a plurality of figures for keys. The electrophoretic display film is disposed on a printed circuit board having a patterned electrode and sealed by a sealant or a sealing material applied to entire periphery of the electrophoretic display film for preventing humidity or pollution, thereby to display excellent figures and be made relatively easily. The figures displayed may be changed by selecting a desired mode, and users may accordingly easily choose desired figures for pressing the keys.