← Back to Patent Explorer
EP0365244A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

An active matrix substrate

Assignee: Sharp Corp
•
Filing: 1989-10-16
•
Granted: —
•
Expires: 2009-10-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An active matrix substrate has pixel electrodes (2) arranged in a matrix form on an insulating substrate, scanning lines (3) disposed between the rows of the pixel electrodes arrayed in one direction, signal lines (4) disposed intersecting the scanning lines, first switching devices (5) each disposed adjacent to one side of each of the pixel electrodes, and second switching devices (6) each disposed adjacent to a different side thereof from the side adjacent to which the first switching devices each are disposed, only the first switching devices (5) out of the first and second switching devices being each electrically connected to the adjacent pixel electrode (2), thereby attaining pixel defect correction with ease.

Inventors

  • 👤 Yuzuru Kanemori
  • 👤 Hidenori Negoto
  • 👤 Mikio Katayama
  • 👤 Motokazu Inui
  • 👤 Kouzou Yano
  • 👤 Hirohisa Tanaka
  • 👤 Hiroshi Morimoto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 02:24
CPC Classifications
H; H10; H10D; H10D86/00; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/13624; G02F1/1333; G02F1/1343; G02F1/134309; G02F1/134345; G02F1/136259; G02F1/136268

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 109 words
An active matrix substrate comprising pixel electrodes (2) arranged in a matrix form on an insulating substrate, scanning lines (3) disposed between the rows of the pixel electrodes arrayed in one direction, and signal lines (4) disposed intersecting said scanning lines, characterised by first switching devices (5) each disposed adjacent to one side of each of said pixel electrodes, and second switching devices (6) each disposed adjacent to a different side thereof from said side adjacent to which said first switching devices each are disposed, only the first switching devices (5) out of the first and second switching devices (5,6) being electrically connected each to the adjacent pixel electrode.
Claim 2
Dependent Claim 109 words
An active matrix substrate comprising pixel electrodes (2) arranged in a matrix form on an insulating substrate, scanning lines (3) disposed between the rows of the pixel electrodes arrayed in one direction, and signal lines (4) disposed intersecting said scanning lines, characterised by first switching devices (5) each disposed adjacent to one side of each of said pixel electrodes, and second switching devices (6) each disposed adjacent to a different side thereof from said side adjacent to which said first switching devices each are disposed, only the first switching devices (5) out of the first and second switching devices (5,6) being electrically connected each to the adjacent pixel electrode.
Claim 3
Dependent Claim 85 words
An active matrix substrate according to claim 1, wherein either one of the first (5) or the second (6) switching devices is formed on the scanning line (3) and is electrically connected to a branch line (4a) extending from the signal line (4) and in parallel with said scanning line (3), while the other one is formed on a branch line (3a) extending from said scanning line (3) and in parallel with said signal line (4) and is electrically connected to said signal line (4).
Claim 4
Dependent Claim 118 words
An active matrix substrate according to claim 1, wherein the first switching device (15) is formed on the scanning line (13) and is connected to a branch line (14a) which extends from the signal line (14) and in parallel with said scanning line, while the second switching device (16) is electrically connected both to said signal line (14) and to one end of a branch line (13a) which extends from said scanning line (13) and which is disposed in parallel with and beneath said signal line (14), the other end of said branch line from said scanning line extending sidewardly from beneath said signal line and being disposed adjacent to said scanning line in a mutually insulating manner.
Claim 5
Dependent Claim 104 words
An active matrix substrate comprising scanning lines (20), signal lines (30) disposed on an insulating substrate and arrayed in horizontal and vertical directions respectively, a plurality of pixel electrodes (40,41), and a pluralilty of switching devices (50,51) electrically connected to said pixel electrodes within each region surrounded by the scanning and signal lines, characterised by the pixel electrodes (40,41) being disposed in a pair adjacent to each other across either the scanning (20) or the signal (30) line and being electrically connected via their respective switching devices (50,51) to the interposed line as well as to the other line that intersects said interposed line.
Claim 6
Dependent Claim 104 words
An active matrix substrate comprising scanning lines (20), signal lines (30) disposed on an insulating substrate and arrayed in horizontal and vertical directions respectively, a plurality of pixel electrodes (40,41), and a pluralilty of switching devices (50,51) electrically connected to said pixel electrodes within each region surrounded by the scanning and signal lines, characterised by the pixel electrodes (40,41) being disposed in a pair adjacent to each other across either the scanning (20) or the signal (30) line and being electrically connected via their respective switching devices (50,51) to the interposed line as well as to the other line that intersects said interposed line.
Claim 7
Dependent Claim 51 words
An active matrix substrate according to claim 4, wherein a spare line (60) is provided which intersects said interposed line in a mutually insulating manner, the ends of the spare line being respectively disposed in close proximity to said paired pixel electrodes (40,41) adjacaent to each other across said interposed line.
Claim 8
Dependent Claim 54 words
An active matrix substrate according to claim 5, wherein the respective ends of said spare line (60) are disposed in close proximity to the respective sides of the intersecting portion of the scanning (20) or signal (30) line which intersects said interposed line and extends adjacent to and in parallel with the other line.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag