Color LCD including transistors having layer thicknesses selecte

Details Color LCD including transistors having layer thicknesses selecte Color LCD including transistors having layer thicknesses selecte

1990-07-26

1992-07-21

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

357 237, 359587, 359590, 359 68, G02F 11343, G02F 11335, G02B 110, G02B 528

Patent

active

051328216

ABSTRACT:
A color display device has groups of liquid crystal display elements controlled by respective TFTs, the groups providing respective different color outputs, e.g. red, green and blue, and being either interspersed in a single panel with individual elements associated with color filter elements or in respective separate panels illuminated by differently colored light. The TFTs are of multilayer structure having semiconductor, gate insulator and gate layers. At least one layer thickness of the TFTs is different from group to group and is selected in accordance with the color light to which they are subjected so as to reduce absorption of that light, and consequently photo-induced currents in their semiconductor layers. Significantly reduced absorption is achievable by appropriate choice for example of semiconductor and insulator layer thicknesses based on optical interference considerations. The device can be used as a projection display device.

REFERENCES:
patent: 4556599 (1985-12-01), Sato et al.
patent: 4810060 (1989-03-01), Ukai
patent: 4862237 (1989-08-01), Morozumi
patent: 4865405 (1989-09-01), Kageyama
patent: 4888632 (1989-12-01), Haller
patent: 4989954 (1991-02-01), Yokoyama et al.
patent: 4997241 (1991-03-01), Muratomi
patent: 5046825 (1991-09-01), Fertig
patent: 5058997 (1991-10-01), Dickerson et al.

Affiliated with

Also associated with

Rating

Color LCD including transistors having layer thicknesses selecte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color LCD including transistors having layer thicknesses selecte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color LCD including transistors having layer thicknesses selecte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-848791