Semiconductor device and display device

Patent metadata

Field	Value
Publication number	US-9411203-B2
Application number	US-201213600658-A
Country	US
Kind code	B2
Filing date	Aug 31, 2012
Priority date	Apr 28, 2005
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

An object of the present invention is to decrease the resistance of a power supply line, to suppress a voltage drop in the power supply line, and to prevent defective display. A connection terminal portion includes a plurality of connection terminals. The plurality of connection terminals is provided with a plurality of connection pads which is part of the connection terminal. The plurality of connection pads includes a first connection pad and a second connection pad having a line width different from that of the first connection pad. Pitches between the plurality of connection pads are equal to each other.

First claim

What is claimed is:

1. A display device comprising:
a pixel portion and a driver circuit portion inside a sealing region; and
a connection terminal portion outside the sealing region,
wherein the pixel portion includes an electroluminescent layer,
wherein the connection terminal portion includes a conductive layer, an insulating film over the conductive layer, and a first connection terminal and a second connection terminal over the insulating film,
wherein the conductive layer is electrically connected to each of the first connection terminal and the second connection terminal through a contact hole, and
wherein a flexible printed circuit is configured to be connected over the contact hole.

2. The display device according to claim 1 , wherein one wire extends from the first connection terminal and a plurality of wires extends from the second connection terminal.

3. The display device according to claim 1 , further comprising a partition between the first connection terminal and the second connection terminal.

4. The display device according to claim 1 , further comprising a plurality of connection terminals which is not in electrical contact with the conductive layer.

5. The display device according to claim 1 , wherein each of the first connection terminal and the second connection terminal extends in perpendicular to the conductive layer.

6. The display device according to claim 1 , wherein the display device is incorporated in one selected from the group consisting of a camera, a computer, a mobile computer, a goggle type display, a video camera, an image reproducing device, and a mobile phone.

7. A display device comprising:
a pixel portion, a driver circuit portion, and a connection terminal portion over a substrate,
wherein the pixel portion includes an electroluminescent layer,
wherein the connection terminal portion includes a conductive layer, an insulating film over the conductive layer, and a first connection terminal and a second connection terminal over the insulating film,
wherein the conductive layer is electrically connected to each of the first connection terminal and the second connection terminal through a contact hole, and
wherein a flexible printed circuit is configured to be connected over the contact hole.

8. The display device according to claim 7 , wherein one wire extends from the first connection terminal and a plurality of wires extends from the second connection terminal.

9. The display device according to claim 7 , further comprising a partition between the first connection terminal and the second connection terminal.

10. The display device according to claim 7 , further comprising a plurality of connection terminals which is not in electrical contact with the conductive layer.

11. The display device according to claim 7 , wherein each of the first connection terminal and the second connection terminal extends in perpendicular to the conductive layer.

12. The display device according to claim 7 , wherein the conductive layer is in direct contact with the substrate.

13. The display device according to claim 7 , wherein the display device is incorporated in one selected from the group consisting of a camera, a computer, a mobile computer, a goggle type display, a video camera, an image reproducing device, and a mobile phone.

Assignees

• Kimura Hajime
• Yamazaki Shunpei
• Semiconductor Energy Lab

Inventors

• Kimura Hajime
• Yamazaki Shunpei

Classifications

• G09G2320/043

  Preventing or counteracting the effects of ageing · CPC title

• H05K2201/094

  Array of pads or lands differing from one another, e.g. in size, pitch or thickness; Using different connections on the pads · CPC title

• H05K1/0265

  characterized by the lay-out of or details of the printed conductors, e.g. reinforced conductors, redundant conductors, conductors having different cross-sections · CPC title

• H05K1/117

  Pads along the edge of rigid circuit boards, e.g. for pluggable connectors · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title