JPH0262477U

JPH0262477U -

Info

Publication number: JPH0262477U
Application number: JP13876888U
Authority: JP
Priority date: 1988-10-25
Filing date: 1988-10-25
Publication date: 1990-05-10

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の一実施例を示したも
ので、第１図は投影型液晶表示装置の側面図、第
２図は各液晶表示パネルが表示する画像の画素配
列図、第３図は合成されたフルカラー画像の画素
配列図である。第４図は従来の投影型液晶表示装
置の側面図である。３……光源、６……投影レンズ、７……スクリ
ーン、８……偏光ビームスプリツタ、１１ａ……
緑色画像表示用液晶表示パネル、ＧＦ……緑色フ
イルタ、１１ｂ……赤青色画像表示用液晶表示パ
ネル、１２……偏光板、１３……光分離用偏光ビ
ームスプリツタ、１４……画像合成用偏光ビーム
スプリツタ、１５，１６……ミラー、１７……Ｓ
偏光光路、Ａ……光源からの照射光、Ａｐ……Ｐ
偏光光、Ａｓ……Ｓ偏光光。 1 to 3 show an embodiment of the present invention, in which FIG. 1 is a side view of a projection type liquid crystal display device, FIG. 2 is a pixel arrangement diagram of images displayed by each liquid crystal display panel, FIG. 3 is a pixel array diagram of a synthesized full-color image. FIG. 4 is a side view of a conventional projection type liquid crystal display device. 3... Light source, 6... Projection lens, 7... Screen, 8... Polarizing beam splitter, 11a...
Liquid crystal display panel for green image display, GF...Green filter, 11b...Liquid crystal display panel for red and blue image display, 12...Polarizing plate, 13...Polarizing beam splitter for light separation, 14...Polarized light for image synthesis Beam splitter, 15, 16...Mirror, 17...S
Polarized light path, A...Irradiation light from the light source, Ap...P
Polarized light, As...S polarized light.

Claims

[Scope of utility model registration request]

In a projection type liquid crystal display device, irradiation light from a light source is incident on a liquid crystal display panel that displays a color image, and the color image light transmitted through the liquid crystal display panel is magnified by a projection lens and projected onto a screen surface. , is equipped with two liquid crystal display panels, one for displaying an image of one of the three primary colors of blue, and another for displaying an image of the other two colors, and one of the liquid crystal display panels is P. The display is performed using polarized light, and the other liquid crystal display panel is arranged to face the light source, and the other liquid crystal display panel is arranged to face the light source. A light separation device between one liquid crystal display panel and the light source, in which P-polarized light of the light emitted from the light source is transmitted and incident on the one liquid crystal display panel, and S-polarized light is reflected toward the side surface. A polarizing beam splitter is disposed between the one liquid crystal display panel and the projection lens, and the P-polarized light that has passed through the one liquid crystal display panel is transmitted and incident on the projection lens from the side. A polarizing beam splitter for image synthesis is arranged to reflect the S-polarized light toward the projection lens, and the S-polarized light is diagonally arranged on a side surface of the polarizing beam splitter for light separation and on a side surface of the polarizing beam splitter for image synthesis. mirrors are disposed to face each other, and the mirrors constitute an S-polarized light path for causing the S-polarized light emitted from a side surface of the light separation polarizing beam splitter to enter the image-synthesizing polarized beam splitter from the side surface; . A projection type liquid crystal display device, characterized in that the other liquid crystal display panel is disposed on this S-polarized light path.