Display device

Patent metadata

Field	Value
Publication number	US-2016266451-A1
Application number	US-201615067611-A
Country	US
Kind code	A1
Filing date	Mar 11, 2016
Priority date	Mar 13, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

To reduce the area of a portion where a plurality of transistors are provided in a region around a display region and to reduce the area of the region around the display region, a display device includes a first transistor and a second transistor each as a transistor, and the transistor includes a connection wiring that electrically connects a semiconductor film and a source-drain electrode to each other via an opening portion provided in an insulating film. The first transistor and the second transistor are adjacent to each other, and there is a clearance between an end portion, on the side of the second transistor, of the connection wiring in the first transistor and an end portion, on the side of the second transistor, of the opening portion in the first transistor.

First claim

1 . A display device comprising:
a substrate; a pixel circuit having pixels formed therein; a plurality of control circuits that respectively feed signals relating to an image to the pixel circuit; and a transistor in a control circuit. wherein the transistor includes:
a gate line extending in a first direction;
an insulating film with an opening portion;
a drain electrode and a source electrode arranged in a second direction different from the first direction;
a semiconductor film overlapped with the drain electrode, the source electrode, and the gate line with the insulating film interposed therebetween; and
a conductive wiring that electrically connects the semiconductor film and the source electrode or the drain electrode via the opening portion,
the display device further includes a first transistor as the transistor and a second transistor as the transistor, the first transistor and the second transistor are adjacent to each other in the second direction, and there is a clearance between an end, on the side of the second transistor, of the conductive wiring in the first transistor and an end, on the side of the second transistor, of the opening portion in the first transistor.

2 . The display apparatus according to claim 1 ,
wherein the first transistor includes a first opening portion group of a plurality of opening portions arranged on the side closer to the second transistor than the gate line of the first transistor, the second transistor includes a second opening portion group of a plurality of opening portions arranged on the side closer to the first transistor than the gate line of the second transistor, the first opening portion groups are arranged in the first direction in the first transistor, the second opening portion groups are arranged in the first direction in the second transistor, and the first opening portion groups and the second opening portion groups are alternately arranged in the first direction.

3 . The display apparatus according to claim 1 ,
wherein one of the source electrode and the drain electrode in the first transistor and one of the source electrode and the drain electrode in the second transistor are adjacent to each other in the second direction, and do not overlap each other in the first direction.

4 . The display apparatus according to claim 2 ,
wherein one of the source electrode and the drain electrode in the first transistor and one of the source electrode and the drain electrode in the second transistor are adjacent to each other in the second direction, and do not overlap each other in the first direction.

5 . The display apparatus according to claim 1 ,
wherein the first transistor includes a first opening portion group of a plurality of opening portions arranged on the side closer to the second transistor than the gate line of the first transistor, the second transistor includes a second opening portion group of a plurality of opening portions arranged on the side closer to the first transistor than the gate line of the second transistor, the first opening portion groups are arranged in the first direction in the first transistor, the second opening portion groups are arranged in the first direction in the second transistor, and the first opening portion groups and the second opening portion groups overlap each other in the first direction.

6 . The display apparatus according to claim 1 ,
wherein the pixel includes a first sub-pixel and a second sub-pixel respectively having different colors, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged in the second direction.

7 . The display apparatus according to claim 2 ,
wherein the pixel includes a first sub-pixel and a second sub-pixel respectively having different colors, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged in the second direction.

8 . The display apparatus according to claim 3 ,
wherein the pixel includes a first sub-pixel and a second sub-pixel respectively having different colors, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged in the second direction.

9 . The display apparatus according to claim 5 ,
wherein the pixel includes a first sub-pixel and a second sub-pixel respectively having different colors, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged in the second direction.

10 . The display apparatus according to claim 1 ,
wherein the pixel circuit has a first pixel and a second pixel as the pixel formed therein, the first pixel includes a first sub-pixel, the second pixel includes a second sub-pixel, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, the first sub-pixel and the second sub-pixel respectively have different colors, and the first transistor and the second transistor are controlled by the same control circuit.

11 . The display apparatus according to claim 2 ,
wherein the pixel circuit has a first pixel and a second pixel as the pixel formed therein, the first pixel includes a first sub-pixel, the second pixel includes a second sub-pixel, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, the first sub-pixel and the second sub-pixel respectively have different colors, and the first transistor and the second transistor are controlled by the same control circuit.

12 . The display apparatus according to claim 3 ,
wherein the pixel circuit has a first pixel and a second pixel as the pixel formed therein, the first pixel includes a first sub-pixel, the second pixel includes a second sub-pixel, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, the first sub-pixel and the second sub-pixel respectively have different colors, and the first transistor and the second transistor are controlled by the same control circuit.

13 . The display apparatus according to claim 5 ,
wherein the pixel circuit has a first pixel and a second pixel as the pixel formed therein, the first pixel includes a first sub-pixel, the second pixel includes a second sub-pixel, the first transistor is a transistor that drives the first sub-pixel, the second transistor is a transistor that drives the second sub-pixel, the first sub-pixel and the second sub-pixel respectively have different colors, and the first transistor and the second transistor are controlled by the same control circuit.

14 . The display apparatus according to claim 1 ,
wherein the display device includes a third transistor as the transistor, the third transistor is arranged on the opposite side to the second transistor with the first transistor sandwiched therebetween, the drain electrode in the first transistor and one of the source electrode and the drain electrode in the second transistor are adjacent to each other in the second direction, and a source electrode in

Assignees

• Japan Display Inc

Inventors

• Koide Gen
• Fukushima Toshiaki

Classifications

• G02F1/136286 Primary

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

• G02F1/13624

  having more than one switching element per pixel · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G09G3/3607 Primary

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title

• G02F1/134363

  for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS] · CPC title