Patent · US Expired

Semiconductor device

US6147667A · kind A · utility

141Cited by
5References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 24, 1997
Grant dateNov 14, 2000
Priority date
Expiry dateDec 24, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G2310/08
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A systemized active matrix display in which a pixel matrix circuit, a driver circuit and a logic circuit are mounted on the same substrate, is formed. A TFT of the present invention has such characteristics as to be able to operate in a wide driving frequency range of 0.05 to 2 GHz, and by designing a channel length and a film thickness of a gate insulating film of the TFT according to characteristics required by circuits, it is possible to form a high frequency driving circuit and a low frequency driving circuit on the same substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.