Title:
LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH041728
Kind Code:
A
Abstract:
PURPOSE:To eliminate the reflected light from a light shielding film and to generate a sufficient black level by constituting the light shielding film of two layers consisting of a metallic thin film and a light absorbing film. CONSTITUTION:The light shielding film is constituted of the two layers consisting of the metallic thin film 5 and the light absorbing film 4 or the three layers formed by sandwiching both sides of the metallic thin film 5 with the light absorbing film 4. The sufficient decreasing of the light transmitted through the light absorbing film is not possible if the light shielding film is constituted of only the light absorbing film. The light shielding film which decreases the reflected light and eliminates the transmitted light is, thereupon, formed by making combination use of the metallic thin film 5 and the light absorbing film 4. A sufficient light shielding effect is obtainable with the metallic thin film even if the film thickness thereof is small and, therefore, a substrate having less ruggedness is produced and the influence of a liquid criptal layer 10 on orientability is lessened. The sufficient black level is generated in this way.
Inventors:
KOMORI KAZUNORI
TAMURA TATSUHIKO
TAKEDA MAMORU
TAMURA TATSUHIKO
TAKEDA MAMORU
Application Number:
JP10348390A
Publication Date:
January 07, 1992
Filing Date:
April 19, 1990
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G02F1/1335; G02F1/136; G02F1/1368; (IPC1-7): G02F1/136; G02F1/1335
Attorney, Agent or Firm:
Shigetaka Awano (1 person outside)
Next Patent: JPH041729