公开(公告)号：EP0831356A4

公开(公告)日：1998-11-04

申请号：EP95919659

申请日：1995-05-29

Applicant: IBM

Inventor： SHINOHARA MASAMI ,  UDA MITSURU ,  ENAMI KUNIO

IPC: G02F1/1339 ,  H04N9/31 ,  G02F1/13

CPC classification number: H04N9/3105 ,  G02F1/13394

Abstract: A projection liquid crystal display using liquid crystal light valves, having columnar spacers formed in pixel array regions, and designed to prevent deterioration of contrast and minimize persistence. Three liquid crystal light valves corresponding to red, green and blue include a plurality of columnar spacers for keeping predetermined cell gaps in pixel array regions. The columnar spacers in the pixel array regions are disposed in such a manner that they do not overlap when projected on a screen.

公开(公告)号：DE69942261D1

公开(公告)日：2010-06-02

申请号：DE69942261

申请日：1999-02-26

Applicant: IBM

Inventor： SHINOHARA MASAMI ,  UDA MITSURU

IPC: G02F1/1335 ,  G09F9/35 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/136 ,  G02F1/1368 ,  H01L21/321

Abstract: A reflection type liquid crystal device has a planarized light reflective face and a reduced reflection loss. An active matrix reflective liquid crystal device comprises: an array substrate which includes switching elements corresponding to pixels and an array of pixel electrodes 32 connected to the switching elements; and an opposing substrate which has a transparent electrode opposite the array of pixel electrodes 32 with a liquid crystal layer inserted therebetween. Each of the pixel electrodes 32 includes an array of electrode studs, i.e., divided electrode elements 68. The regions between the electrodes 68 are filled with an insulating material 64, and the surface of the stud array is planarized by chem-mech polishing. A dielectric light reflective film is formed on the planarized surface of the stud array, and a liquid crystal molecule alignment film is deposited thereon.

公开(公告)号：DE69530425T2

公开(公告)日：2003-12-18

申请号：DE69530425

申请日：1995-05-29

Applicant: IBM

Inventor： SHINOHARA MASAMI ,  UDA MITSURU ,  ENAMI KUNIO

IPC: G02F1/1339 ,  H04N9/31 ,  G02F1/13

Abstract: The present invention relates to a projection type liquid crystal display device and a method for the manufacture thereof. It is the object of the present invention to provide a liquid crystal display device having pillar-shape spacers formed in pixel array regions with improved display properties by preventing the degradation of contrast and the occurrence of residual images, and a method for the manufacture of such a liquid crystal display device. In the liquid crystal display device comprising three liquid crystal light valves for displaying images corresponding to red (R), green (G) and blue (B), and having a plurality of pillar-shape spacers for maintaining a prescribed cell gap formed in their pixel array regions, a plurality of pillar-shape spacers formed in their pixel array regions are provided at locations which do not overlap with each other when images are projected on the screen.

公开(公告)号：DE69530425D1

公开(公告)日：2003-05-22

申请号：DE69530425

申请日：1995-05-29

Applicant: IBM

Inventor： SHINOHARA MASAMI ,  UDA MITSURU ,  ENAMI KUNIO

IPC: G02F1/1339 ,  H04N9/31 ,  G02F1/13

Abstract: The present invention relates to a projection type liquid crystal display device and a method for the manufacture thereof. It is the object of the present invention to provide a liquid crystal display device having pillar-shape spacers formed in pixel array regions with improved display properties by preventing the degradation of contrast and the occurrence of residual images, and a method for the manufacture of such a liquid crystal display device. In the liquid crystal display device comprising three liquid crystal light valves for displaying images corresponding to red (R), green (G) and blue (B), and having a plurality of pillar-shape spacers for maintaining a prescribed cell gap formed in their pixel array regions, a plurality of pillar-shape spacers formed in their pixel array regions are provided at locations which do not overlap with each other when images are projected on the screen.