Electrophoretic display keypad structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 14, 2013
Grant Date -
Jun 23, 2011
app pub date -
Apr 16, 2010
filing date -
Dec 17, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully