Display device

• US 9,806,142 B2
• Filed: 05/16/2016
• Issued: 10/31/2017
• Est. Priority Date: 06/09/2015
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Chen, Yun-Sheng, Chu, Hsia-Ching, Sun, Ming-Chien
• Primary Examiner(s): Shamsuzzaman, Mohammed
• Application Number:
  US15/155,106
• Publication Number:
  US 20160365405A1
• Time in Patent Office: 533 Days
• Field of Search: 257 40, 257 59, 257 72, 438155, 349143, 345173, 345 87
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1248 with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals

Abstract

A display device comprising: a substrate with a display region and a border region; a first metal layer disposed on the substrate; a first insulating layer disposed on the first metal layer and having a first contact via on the border region; a second metal layer disposed on the first insulating layer and in the first contact via to electrically connect to the first metal layer; a second insulating layer disposed on the second metal layer; a first electrode layer disposed on the second insulating layer and having a first opening; a third insulating layer disposed on the first electrode layer and has a second opening on the border region; and a second electrode layer disposed on the third insulating layer and in the second opening to electrically connect to the first electrode layer, wherein the first contact via corresponds to the first opening, is disclosed.

Claims

1. A display device, comprising:

a substrate with a display region and a border region surrounding the display region;

a first metal layer disposed on the substrate;

a first insulating layer disposed on the first metal layer and having a first contact via on the border region;

a second metal layer disposed on the first insulating layer and in the first contact via to electrically connect to the first metal layer;

a second insulating layer disposed on the second metal layer;

a first electrode layer disposed on the second insulating layer and having at least one first opening on the border region;

a third insulating layer disposed on the first electrode layer and having a second opening on the border region;

a second electrode layer disposed on the third insulating layer and in the second opening to electrically connect to the first electrode layer,

wherein the first contact via corresponds to the first opening; and

wherein in a cross-section of the display device, the first opening has a first side and a second side opposite to the first side, the first contact via has a third side and a fourth side opposite to the third side, the first side is relatively close to the third side, the second side is relatively close to the fourth side, and a distance between the first side and the third side is different from that between the second side and the fourth side,

wherein in the cross-section of the display device, the first opening has a first central line, the first contact via has a second central line, and the first central line is not overlapped with the second central line.

2. The display device as claimed in claim 1, wherein the second opening and the first opening are not aligned to each other.

3. The display device as claimed in claim 1, wherein the third insulating layer further has a third opening, and the first opening locates between the second opening and the third opening,

wherein, in the cross-section of the display device, the third insulating layer covers the first electrode layer and has a curved surface between the second opening and the third opening,

wherein, in the cross-section of the display device, the curved surface has a first end and a second end, a first distance is between the first end and the first side, a second distance is between the second end and the second side, and the first distance and the second distance are different.

4. The display device as claimed in claim 1, wherein a thickness of the second electrode layer on the third insulating layer is different from another thickness thereof in the second opening.

5. The display device as claimed in claim 1, wherein the display device is an OLED display device.

6. A display device, comprising:

a substrate with a display region and a border region surrounding the display region;

a first metal layer disposed on the substrate;

a second metal layer disposed on the first metal layer;

a first insulating layer disposed between the first metal layer and the second metal layer, wherein the first insulating layer has a first contact via, and the second metal layer is disposed in the first contact via to electrically connect to the first metal layer;

a second insulating layer disposed on the second metal layer;

a first electrode layer disposed on the second insulating layer and having a first opening on the border region;

a second electrode layer disposed on the first electrode layer;

a third insulating layer disposed between the first electrode layer and the second electrode layer, and further disposed in the first opening to contact with the second insulating layer,

wherein the first contact via corresponds to the first opening;

wherein in a cross-section of the display device, the first opening has a first side and a second side opposite to the first side, the first contact via has a third side and a fourth side opposite to the third side, the first side is relatively close to the third side, the second side is relatively close to the fourth side, and a distance between the first side and the third side is different from that between the second side and the fourth side,

wherein in the cross-section of the display device, the first opening has a first central line, the first contact via has a second central line, and the first central line is not overlapped with the second central line.

7. The display device as claimed in claim 6, wherein the second opening and the first opening are not aligned to each other.

8. The display device as claimed in claim 6, wherein the third insulating layer further has a third opening, and the first opening locates between the second opening and the third opening,

wherein, in the cross-section of the display device, the third insulating layer covers the first electrode layer and has a curved surface 5 between the second opening and the third opening,

wherein, in the cross-section of the display device, the curved surface has a first end and a second end, a first distance is between the first end and the first side, a second distance is between the second end and the second side, and the first distance and the second distance are different.

9. The display device as claimed in claim 6, wherein a thickness of the second electrode layer on the third insulating layer is different from another thickness thereof in the second opening.

10. The display device as claimed in claim 6, wherein the display device is an OLED display device.