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EP0136509A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Active matrix type display apparatus

Assignee: Toshiba Corp
•
Filing: 1984-08-20
•
Granted: —
•
Expires: 2004-08-20
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Abstract

Abstract @ In an active matrix type display apparatus which in- dudes a first electrode substrate (15) having a transparent insulation substrate (16) on which a thin film transistor (11) a transparent display pixel electrode (12) selectively driven by the thin film transistor (11) and a connecting portion (10) for connecting the thin film transistor (11) with the transparent display pixel electrode (12) are formed, a second electrode substrate (17) having another transparent insulation substrate (18) on which an opposing electrode (13) formed of a transparent conductive film is formed, and a display medium (14) sandwiched between the first and second electrode substrates (15, 17), an electrically conductive light shielding layer (28) which is fixed at a predetermined potential is provided on each of thin film transistor portions of the first electrode substrate (15), and a part of the light shielding layer (28) opposes a part of the transparent display pixel electrode (12) through an insulation film (29) so as to form a supplemental storage capacitor.

Inventors

  • 👤 Toshio C/O Patent Division Yanagisawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 05:46
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/136213; G02F1/1368; H; H10; H10D; H10D30/00; H10D30/60; H10D30/67; H10D30/6704; H10D30/6723; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512; G02F1/133514; G02F2202/00; G02F2202/10; G02F2202/103; G02F2202/104; G02F2202/106

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 165 words
An active matrix type display apparatus comprising a first electrode substrate (15) having a transparent insulation substrate (16) on which a thin film transistor (11), a transparent display pixel electrode (12) selectively addressed by said thin film transistor array (11) and a connecting portion (10) for connecting said thin film transistor (11) with said transparent display pixel electrode (12) are formed; a second electrode substrate (17) having another transparent insulation substrate (18) on which an opposing electrode (13) formed of a transparent conductive film is formed; and a display medium (14) sandwiched between said first and second electrode substrates (15, 17); characterized in that an electrically conductive light shielding layer (28) which is fixed at a predetermined potential is provided on each of thin film transistor portions of said first electrode substrate (15), and a part of said light shielding layer (28) opposes a part of said transparent display pixel electrode (12) through an insulation film (29) so as to form a supplemental storage capacitor.
Claim 2
Dependent Claim 165 words
An active matrix type display apparatus comprising a first electrode substrate (15) having a transparent insulation substrate (16) on which a thin film transistor (11), a transparent display pixel electrode (12) selectively addressed by said thin film transistor array (11) and a connecting portion (10) for connecting said thin film transistor (11) with said transparent display pixel electrode (12) are formed; a second electrode substrate (17) having another transparent insulation substrate (18) on which an opposing electrode (13) formed of a transparent conductive film is formed; and a display medium (14) sandwiched between said first and second electrode substrates (15, 17); characterized in that an electrically conductive light shielding layer (28) which is fixed at a predetermined potential is provided on each of thin film transistor portions of said first electrode substrate (15), and a part of said light shielding layer (28) opposes a part of said transparent display pixel electrode (12) through an insulation film (29) so as to form a supplemental storage capacitor.
Claim 3
Dependent Claim 37 words
An apparatus according to claim 1, characterized in that said light shielding layer (28) is formed on said transparent insulating substrate (16) before said thin film transistor (11) and said transparent display pixel electrode (12) are formed.
Claim 4
Dependent Claim 29 words
An apparatus according to claim 1, characterized in that said light shielding layer (28) is formed on said thin film transistor (11) and said transparent display pixel electrode (12).
Claim 5
Dependent Claim 18 words
An apparatus according to claim 1, characterized in that said display medium (14) is a liquid crystal material.

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