公开(公告)号：DE69522981T2

公开(公告)日：2002-04-11

申请号：DE69522981

申请日：1995-03-20

Applicant: XEROX CORP

Inventor： SILVERSTEIN LOUIS D ,  BRUCE RICHARD ,  FISKE THOMAS ,  SPRAGUE ROBERT A

IPC: G02B6/00 ,  G02B6/08 ,  G02F1/1335 ,  G02F1/13357

Abstract: A transmissive, backlit color twisted-nematic or super-twisted-nematic liquid crystal display employing a front fiber-optic faceplate (28) as a front retaining element of a liquid crystal cell (18) that increases viewing angle between the display and a viewer while minimizing or eliminating undesirable variations in luminance, contrast ratio and chromaticity is described. This novel configuration effectively decouples the liquid crystal cell (18) and other optical elements (12,14,16) behind the front fiber optic faceplate from the angular orientation of the viewer with respect to the display. The liquid crystal display described in this invention further provides a high quality color display, without viewing parallax, using a color selection filter mosaic (30) outside of the liquid crystal cell. The display also increases luminous efficiency and improves color saturation by concentrating the transmission of available backlight illumination through the use of a rear fiber-optic faceplate (32) and a second rear-mounted mosaic (34) of color interference filters.

公开(公告)号：DE69522981D1

公开(公告)日：2001-11-08

申请号：DE69522981

申请日：1995-03-20

Applicant: XEROX CORP

Inventor： SILVERSTEIN LOUIS D ,  BRUCE RICHARD ,  FISKE THOMAS ,  SPRAGUE ROBERT A

IPC: G02B6/00 ,  G02B6/08 ,  G02F1/1335 ,  G02F1/13357

Abstract: A transmissive, backlit color twisted-nematic or super-twisted-nematic liquid crystal display employing a front fiber-optic faceplate (28) as a front retaining element of a liquid crystal cell (18) that increases viewing angle between the display and a viewer while minimizing or eliminating undesirable variations in luminance, contrast ratio and chromaticity is described. This novel configuration effectively decouples the liquid crystal cell (18) and other optical elements (12,14,16) behind the front fiber optic faceplate from the angular orientation of the viewer with respect to the display. The liquid crystal display described in this invention further provides a high quality color display, without viewing parallax, using a color selection filter mosaic (30) outside of the liquid crystal cell. The display also increases luminous efficiency and improves color saturation by concentrating the transmission of available backlight illumination through the use of a rear fiber-optic faceplate (32) and a second rear-mounted mosaic (34) of color interference filters.