Patent · US Expired

LSI Device including a liquid crystal display drive

US4309701A · kind A · utility

10Cited by
8References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 18, 1979
Grant dateJan 5, 1982
Priority date
Expiry dateMay 18, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G2330/021
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A power consumption reduction device in an LSI device is disclosed which includes a liquid crystal display drive circuit. The liquid crystal enabling voltage generator including bleeder resistors and adapted for generating three voltage levels is provided with means for shutting down current paths via the bleeder resistors.

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