Patent · US Expired

Reflective-transmissive type liquid crystal display device

US7688405B2 · kind B2 · utility

10Cited by
5References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 9, 2004
Grant dateMar 30, 2010
Priority date
Expiry dateOct 17, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/133371
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A reflective-transmissive liquid crystal display (LCD) device with an improved display quality is achieved by forming a reflective area and a transmissive area having a cell gap greater than greater than that of the reflective area. A liquid crystal layer is disposed in a liquid crystal cell between the first and second substrates. The liquid crystal molecules are normally aligned at an angle equal to greater than about 45° with respect to a line parallel to the first substrate. The LCD device operates in a normally black mode.

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