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:
Jun. 22, 2004
Filed:
May. 13, 2002
Tomio Tanaka, Tokyo, JP;
Dai Nippon Pringing Co., Ltd., Tokyo, JP;
Abstract
A reflection type color liquid crystal display device includes a liquid crystal cell controlled by a new field sequential method and a reflection device disposed at the rear surface of the cell. The device includes a band-like reflection sheet having reflection regions for reflecting the three-color lights of yellow, magenta and cyan. The reflection sheet is driven by a driving device, whereby the reflection regions are sequentially moved to the reverse side of the liquid crystal cell. In synchronism with the color changes of these reflection regions, the liquid crystal cell is controlled so that its light transmittance may be controlled in the way of color filters controlling the three picture elements of yellow, magenta, and cyan, simultaneously and time-sequentially three times. As a result of this 3-time time-sequential display, the desired color is displayed by the additive color process.