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:
Jul. 27, 2004
Filed:
Jul. 22, 2002
Yutaka Ozawa, Suwa, JP;
Akira Inoue, Suwa, JP;
Katsunori Yamazaki, Suwa, JP;
Tsuyoshi Maeda, Suwa, JP;
Chiyoaki Iijima, Inu, JP;
Seiko Epson Corporation, , JP;
Abstract
An ON/OFF control signal directive of turning ON in a transmissive display mode or turning OFF in a reflective display mode is output by an ON/OFF state controlling means to a light source . The ON/OFF control signal is also output to a data signal converting means , and the data signal converting means converts a data signal into a data signal in synchronization with the switching of ON and OFF of the light source so as to prevent positive-negative inversion of the display on a liquid crystal panel . A data signal potential supplying means supplies a potential of a data signal based on the data signal to a data signal line so as to drive the liquid crystal panel