Patent · US Expired

Display apparatus capable of gradational display

US6072555A · kind A · utility

6Cited by

16References

45Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Atsushi Mizutome · Tokyo, JP
Kazunori Katakura · Atsugi, JP
Jun Iba · Yokohama, JP

Key dates

Filing date	Jan 28, 1997
Grant date	Jun 6, 2000
Priority date	—
Expiry date	Jan 28, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/134345
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A display apparatus is constituted to have a multiplicity of pixels each divided into at least two sub-pixels having mutually different areas including a larger sub-pixel having a larger area and a smaller sub-pixel having a smaller area. Each sub-pixel is provided with a transparent electrode and a low-resistivity conductor connected to the transparent electrode, and the low-resistivity conductor for the larger sub-pixel is set to have a lower resistance than the low-resistivity conductor for the smaller sub-pixel. As a result, a pixel switching characteristic can be uniformized over an entire picture area of the display apparatus regardless of different areas (loads) of the sub-pixels and without using different performances of drivers.

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