Active matrix display device with auxiliary repair line

Patent metadata

Field	Value
Publication number	US-9405162-B2
Application number	US-201214237511-A
Country	US
Kind code	B2
Filing date	Aug 7, 2012
Priority date	Aug 10, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

An active matrix display device is equipped with: a first auxiliary wiring line ( 700 ) that intersects a second common wiring line ( 230 ) through an insulation film, and that intersects with any of a plurality of first connecting wiring lines ( 900 ) through an insulating film; and a second auxiliary wiring line ( 710 ) that intersects, across an insulation film, any of a plurality of redundant portions ( 101 ), which are the other end portions of each of a plurality source wiring lines ( 100 ) and are located outside of a display region ( 60 ), and that, in a plan view, is positioned outside of a plurality of second lead-out wiring lines ( 250 ) and a first driver circuit, and is capable of being connected electrically to the second common wiring line ( 230 ). On each of the plurality of first connecting wiring lines ( 900 ), a plurality of intersections ( 901 ), where the first auxiliary wiring line ( 700 ) and the plurality of first connecting wiring lines ( 900 ) intersect, are located closer to the side of a plurality of source terminals ( 110, 120 ) than first obstructing portions.

First claim

The invention claimed is:

1. An active matrix display device, comprising:
an active matrix substrate;
a driver mounted on the active matrix substrate; and
an external substrate electrically connected to the active matrix substrate,
wherein the active matrix substrate includes:
a plurality of first wiring lines that extend in parallel with each other in at least a display region;
a plurality of second wiring lines that extend in parallel with each other in the display region, and that intersect with the plurality of first wiring lines across an insulating film;
a plurality of first transmission terminals that are located in a portion of a terminal region adjacent to the display region, the terminal region being located outside of the display region on one end of the plurality of first wiring lines, the plurality of first transmission terminals being aligned in an extension direction of the plurality of second wiring lines and sending a signal from the driver to the respective plurality of first wiring lines;
a plurality of second transmission terminals that are located in a portion of the terminal region adjacent to the display region, the terminal region being located outside of the display region on the one end of the plurality of first wiring lines, the plurality of second transmission terminals being aligned in the extension direction of the plurality of second wiring lines and sending a signal from the driver to the respective plurality of second wiring lines;
a plurality of first lead-out wiring lines that respectively connect the one end of the plurality of first wiring lines to the plurality of first transmission terminals;
a plurality of second lead-out wiring lines that respectively connect one end of at least some of the plurality of second wiring lines to the second transmission terminals;
a first driver circuit that is electrically connected to the plurality of second lead-out wiring lines, and that supplies a signal to said at least some of the plurality of second wiring lines;
a plurality of output terminals located in the terminal region opposite to where the display region is located, the plurality of output terminals outputting a signal to the driver;
a group of terminals located in the terminal region opposite to where the display region is located, the group of terminals including a plurality of input terminals to which a signal from the external substrate is inputted;
a first common wiring line terminal included in the group of terminals by which a signal passing through the plurality of first transmission terminals is inputted;
a second common wiring line terminal, included in the group of terminals by which a signal passing through the plurality of second transmission terminals, which are connected to the second lead-out wiring lines, is inputted;
a first common wiring line connected to the first common wiring line terminal, the first common wiring line having a first extension portion that extends between the plurality of first transmission terminals and the plurality of output terminals;
a second common wiring line connected to the second common wiring line terminal, the second common wiring line having a second extension portion that extends between the plurality of second transmission terminals that are connected to the second lead-out wiring lines and the plurality of output terminals;
a plurality of first connecting wiring lines provided between the respective plurality of first transmission terminals and the first extension portion of the first common wiring line;
a plurality of second connecting wiring lines provided between the respective plurality of second transmission terminals connected to the second lead-out wiring lines, and the second extension portion of the second common wiring line;
a first auxiliary wiring line that intersects with the second common wiring line across the insulating film, and that intersects with any of the plurality of first connecting wiring lines across the insulating film; and
a second auxiliary wiring line that intersects, across the insulating film, with any of a plurality of redundant portions that are portions located outside of the display region on another side of the respective plurality of first wiring lines, that are located outside of the plurality of second lead-out wiring lines and the first driver circuit in a plan view, and that connects electrically with the second common wiring line or intersects with the second common wiring line through the insulating film,
wherein the plurality of first connecting wiring lines respectively have first obstructing portions therein that block an electrical connection between the plurality of first transmission terminals and the first common wiring line,
wherein the plurality of second connecting wiring lines respectively have second obstructing portions therein that block an electrical connection between the plurality of second transmission terminals that are connected to the second lead-out wiring lines, and the second common wiring line, and
wherein a plurality of intersections where the first auxiliary wiring line and the plurality of first connecting wiring lines intersect are located in each of the plurality of first connecting wiring lines closer to the plurality of first transmission terminals than the first obstructing portions are.

2. The active matrix display device according to claim 1 , wherein the active matrix substrate further includes:
a plurality of third lead-out wiring lines connected to another end of at least some of the remaining plurality of second wiring lines that are not connected to the plurality of second lead-out wiring lines;
a second driver circuit that is electrically connected to the plurality of third lead-out wiring lines, and that supplies a signal to said at least some of the remaining plurality of second wiring lines;
a third common wiring line terminal included in the group of terminals that inputs a signal through the plurality of second transmission terminals connected to the third lead-out wiring lines;
a third common wiring line connected to the third common wiring line terminal, the third common wiring line having a third extension portion that extends between the plurality of second transmission terminals that are connected to the third lead-out wiring lines and the plurality of output terminals;
a plurality of third connecting wiring lines that are provided between the respective plurality of second transmission terminals connected to the third lead-out wiring lines, and the third extension portion of the third common wiring line;
a third auxiliary wiring line that intersects with the third common wiring line across the insulating film, and that intersects with any of the plurality of first connecting wiring lines across the insulating film; and
a fourth auxiliary wiring line that intersects with any of the plurality of redundant portions located outside the display region across the insulating film, the redundant portions being portions on another end of the respective plurality of first wiring lines, the fourth auxiliary wiring line being located outside of the plurality of third lead-out wiring lines and the second driver circuit in a plan view and being connected electrically to the third common wiring line or intersecting with the third common wiring line through the insulating film, and
wherein the plurality of third connecting wiring lines respectively have third obstructing portions therein that block an electrical connection between the plurality of second transmission terminals connected to the third lead-out wiring lines, and the third common wiring line.

3. The active matrix display device according to claim 2 ,
wherein a first connecting wiring line of the plurality of first connecting wiring lines connected to a first wiring line having a disconnection among

Assignees

• Ogasawara Isao
• Yoshida Masahiro
• Sharp Kk

Inventors

• Ogasawara Isao
• Yoshida Masahiro

Classifications

• G02F1/136286 Primary

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/1309

  Repairing; Testing · CPC title

• G02F1/136259

  Repairing; Defects · CPC title

• G02F1/1345 Primary

  Conductors connecting electrodes to cell terminals · CPC title

• G02F2001/136272

  Physics · mapped topic