Inventors:
Ram W. Sabnis - Rolla MO
Terry L. Brewer - Rolla MO
Robert E. Nichols - Rolla MO
Edith G. Hays - Rolla MO
Michael D. Stroder - Springfield MO
Akira Yanagimoto - Musashino, JP
Yasuhisa Sone - Funabashi, JP
Yoshitane Watanabe - Tokyo, JP
Kiyomi Ema - Chiba, JP
Assignee:
Brewer Science, Inc. - Rolla MO
Nissan Chemical Industries, Ltd.
International Classification:
G03F 7004, C08K 304
Abstract:
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.