EP0361981A3

Liquid crystal display device for display with gray levels

Abstract

A liquid crystal display device having an arrangement of a plurality of pixel display regions (82) each including a plurality of divided pixels (A-D), and being capable of effecting display with a large number of gray levels. Each of the divided pixels (A-D) is displayed individually and selectively with at least two gray levels. The liquid crystal device further includes pixel electrodes (31-36) for individually and selectively enabling the divided pixels (A-D), and a gray level setting circuit for controlling the sum of the areas of the enabled divided pixels (A-D), thereby setting the gray levels of the pixels. In this device, one pixel display region (82) includes n divided pixels (A-D) and if each pixel (A-D) can be displayed with m gray levels, the areas of the pixels (A-D) are set to form a geometric progression using m as a common ratio, whereby display with mn gray levels for one display region (82) can be effected with high precision.

EP0361981A3, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 2 October 2009, 17 years ago.

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