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:
Sep. 14, 2004
Filed:
Jan. 22, 2003
Kohji Toda, Yokosuka 239-0814, JP;
Other;
Abstract
A reflective liquid-crystal display comprises a display assembly and a piezoelectric assembly, on which the display assembly is formed. The display assembly is composed of first- and second transparent nonpiezoelectric-plates having first- and second transparent electrodes, respectively, and a liquid crystal between thereof. The piezoelectric assembly is composed of a piezoelectric substrate, at least one electrode under the piezoelectric substrate, and a counter electrode over the piezoelectric substrate. If a first electric signal is applied to the piezoelectric assembly, a transition from a transparent- to an opaque state in the liquid crystal occurs. In this time, if a second electric signal is applied to a part of the liquid crystal, a transition from the opaque- to the transparent state in the liquid crystal occurs. Thus, a light through the part of the liquid crystal is reflected at the counter electrode.