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:
Apr. 20, 2004
Filed:
Jan. 29, 2002
Tsuyoshi Tamura, Hara-mura, JP;
Zenzo Oda, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
There is provided a display driver incorporating a RAM in which a plurality of memory cells having a three-port configuration can be provided within an interval of output electrodes thereof, and a display unit and an electronic apparatus utilizing the same. The memory cells include a flip-flop comprised of first and second inverters. A first node of the flip-flop is connected to a CPU bit line and an RGB bit line through an N-type MOS transistor. A P-type MOS transistor and an N-type MOS transistor are connected to a second node of the flip-flop. The N-type MOS transistor is connected to a ground potential level at the source terminal thereof. A set signal for each pixel is supplied to the gate terminal of only the flip-flop associated with the pixel to be written, and the set signal sets the second node at the ground potential level.