Color liquid crystal display device

Abstract

Abstract PURPOSE:To make a color liquid crystal display device compact and to reduce the cost thereof by constituting it of a reflection type liquid crystal display element for modulating a first primary color, a reflection type liquid crystal display element for modulating a second primary color, a reflection type liquid crystal display element for modulating a third primary color, a set of color polarizers, one dichroic mirror surface and one polarization separation surface. CONSTITUTION:The first primary color is made incident on the polarization separation surface 6 again after it is polarized and modulated by the reflection type liquid crystal display element 1. Then, only the component which is modulated to second polarized light by the polarization separation surface is transmitted as the modulated light 13 of the first primary color as it is. The second and the third primary colors are composed in an identical direction by the dichroic mirror surface 5 and made incident on the polarization separation surface 6 after they are polarized and modulated by the reflection type liquid crystal display elements 2 and 3. Then, only the component which is modulated to first polarized light is reflected on the polarization separation surface 6 as the modulated light 14 of the second primary color and the modulated light 15 of the third primary color. Thus, the color liquid crystal display device is made compact and the cost thereof is reduced.

Inventors

• 👤 Seigo Togashi
• 👤 清吾 富樫

Bibliographic Details