Active matrix display with capacitive light shield

Details Active matrix display with capacitive light shield Active matrix display with capacitive light shield

1986-09-29

1988-07-26

Miller, Stanley D.

357 237, 357 30, G02F 1133, H01L 2978

Patent

active

047596104

ABSTRACT:
In an active matrix type display apparatus which includes a first electrode substrate having a transparent insulation substrate on which a thin film transistor a transparent display pixel electrode selectively driven by the thin file transistor and a connecting portion for connecting the thin film transistor with the transparent display pixel electrode are formed, a second electrode substrate having another transparent insulation substrate on which an opposing electrode formed of a transparent conductive film is formed, and a display medium sandwiched between the first and second electrode substrates, an electrically conductive light shielding layer which is fixed at a predetermined potential is provided on each of thin film transistor portions of the first electrode substrate, and a part of the light shielding layer opposes a part of the transparent display pixel electrode through an insulation film so as to form a supplemental storage capacitor.

REFERENCES:
patent: 3824003 (1974-07-01), Koda et al.
patent: 3840695 (1974-10-01), Fischer
patent: 4040073 (1977-08-01), Luo
patent: 4158484 (1979-06-01), Nishiyama
patent: 4196973 (1980-04-01), Hochstrate
patent: 4239346 (1980-07-01), Lloyd
patent: 4431271 (1984-02-01), Okubo
patent: 4470667 (1984-09-01), Okubo et al.
patent: 4545112 (1985-10-01), Holmberg et al.
Fang, "TFT Structure With Electrically Adjustable Threshold IBM Technical Disclosure, vol. 20, No. 12, May 1978, p. 5352.
Luo et al. II, "A Low-Leakage-Current Thin-Film Transistor for Flat-Panel Displays" 1980 Biennial Display Research Conference, IEEE, Oct. 1980.
Electron & Applic. Industr., No. 254, Jun. 1978, pp. 15-16 by F. Morin: "Des Transistors En Couches Minces Pour Les Ecrans de Visualization".

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