Nissan Chemical Industries Limited

Brewer Science, Inc.

Michael D Stroder

Yoshitane Watanabe

Terry Lowell Brewer

Kiyomi Ema

Ram W Sabnis

Akira Yanagimoto

Yasuhisa Sone

Edith G Hays

Jonathan W Mayo

Robert E Nichols

A high optical density, i.e., .gtoreq.3.0, at 1 micron or less film thickness, black matrix is disclosed having improved stability and shelf life as a consequence of admixing Pigment Black 7 and organic dye or dye mixtures on a polyimide polymer vehicle.

High optical density ultra thin organic black matrix system

An organic black matrix having high resistivity (.gtoreq.10.sup.11 ohm/square), high optical density (.gtoreq.2.0) at ultra thin film thicknesses (.ltoreq.1.0 microns) for improved STN and TFT pixel display applications is made possible by combining polyimide/dye solutions and mixed metal oxide pigment dispersions at a weight/weight ratio of dye to pigment of 1:15 to 3:15. The need for low resistivity carbon black, as a replacement for sputtered chrome, is negated.

Ultra thin photolithographically imageable organic black matrix coating

Growing community of inventors

Springfield, MO, United States of America

Michael D Stroder