Liquid crystal display having reduced ITO shading material and m

Details Liquid crystal display having reduced ITO shading material and m Liquid crystal display having reduced ITO shading material and m

1991-04-15

1992-02-25

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 87, G02F 1133

Patent

active

050917927

ABSTRACT:
A liquid crystal display and a method for manufacturing the same wherein the light transmissivity of selected regions of the indium tin oxide film forming the common electrode on a first substrate is decreased and the regions are made substantially non-reflecting by reducing the oxygen content of the film. The shading material thus produced does not reflect light to the thin film transistors which control the picture elements on a second, facing substrate and therefore does not affect their operation. Reduction is accomplished by providing a protective mask for areas that are not to be reduced, immersing the substrate containing the thin film with the protective mask applied thereto in an electrolyte, and applying a voltage sufficient to reduce the indium tin oxide in regions unprotected by the mask. The mask, which may be a photoresist, is then removed and the substrate may be incorporated into the display.

REFERENCES:
patent: 4568149 (1986-02-01), Sugata et al.
patent: 4591240 (1986-05-01), Masaki et al.
patent: 4712874 (1987-12-01), Sekimura et al.
patent: 4733948 (1988-03-01), Kitahara
patent: 4867537 (1989-09-01), Aoki et al.
patent: 4964702 (1990-10-01), Sugimoto et al.

Affiliated with

Also associated with

Rating

Liquid crystal display having reduced ITO shading material and m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystal display having reduced ITO shading material and m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display having reduced ITO shading material and m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1896469