TOUCH SENSITIVE DISPLAY AND MANUFACTURING METHOD THEREOF

• US 20120319961A1
• Filed: 08/30/2011
• Published: 12/20/2012
• Est. Priority Date: 06/15/2011
• Status: Active Grant

• Current Assignee: TPK Touch Solutions (Xiamen) Inc. (TPK Holding Co., Ltd.)
• Original Assignee: TPK Touch Solutions (Xiamen) Inc. (TPK Holding Co., Ltd.)
• Inventors: LIU, CHEN-YU
• Granted Patent: US 9,348,439 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

The present invention relates to a touch sensitive display, which comprises a merged layer made of sensing electrodes and organic light-emitting electrodes. The touch sensitive display further comprises a first touch sensing layer and an organic light-emitting assembly, wherein the first touch sensing layer has a plurality of first sensing electrodes, which are formed onto a surface of an upper substrate. This organic light-emitting assembly is disposed on an upper surface of a lower substrate, and the merged layer is formed on the surface of the organic light-emitting assembly. The sensing electrodes that comprised in this merged layer are second sensing electrodes, while the organic light-emitting electrodes are counter electrodes which originally belong to the organic light-emitting assembly. In addition, the present invention also provides a manufacturing method of a touch sensitive display. Thereby, the present invention could reduce the manufacturing procedure and efficiently increase the yield rate of production.

Claims

1. A touch sensitive display, comprising:

a merged layer, which is made of sensing electrodes and organic light-emitting electrodes.

2. The touch sensitive display according to claim 1, further comprising:

a first touch sensing layer having a plurality of first sensing electrodes and formed on a surface of an upper substrate; and

an organic light-emitting assembly disposed on a lower substrate;

wherein the merged layer is formed on the surface of the organic light-emitting assembly, the sensing electrodes that comprised in the merged layer are second sensing electrodes, while the organic light-emitting electrodes are the counter electrodes which originally belong to the organic light-emitting assembly.

3. The touch sensitive display according to claim 2, wherein the organic light-emitting assembly further comprises at least a thin-film transistor element, a pixel electrode layer, and an intermediate layer, which are integrally formed on the upper surface of the lower substrate.

4. The touch sensitive display according to claim 3, wherein the intermediate layer comprises an electron injecting layer, an electron transfer layer, an organic light-emitting layer, a hole transfer layer, and a hole injecting layer.

5. The touch sensitive display according to claim 2, wherein the first touch sensing layer is formed on the upper surface of the upper substrate, and the merged layer is formed below the lower surface of the upper substrate as the top layer of the upper surface of the lower substrate.

6. The touch sensitive display according to claim 2, wherein the first touch sensing layer is formed on the lower surface of the upper substrate, and the merged layer is formed below the first touch sensing layer as the top layer of the upper surface of the lower substrate.

7. The touch sensitive display according to claim 2, further comprising a sealing layer formed in the peripheral area of the upper substrate and the lower substrate to make the upper substrate and the lower substrate oppositely formed as an assembly.

8. A method for manufacturing a touch sensitive display, comprising mixing or organizing sensing electrodes and organic light-emitting electrodes to form a merged layer.

9. The method for manufacturing the touch sensitive display according to claim 8, further comprising:

forming a first touch sensing layer on a surface of an upper substrate, wherein the first touch sensing layer comprises a plurality of first sensing electrodes;

forming an organic light-emitting assembly on an upper surface of a lower substrate;

forming the merged layer on the surface of the organic light-emitting assembly, wherein the sensing electrodes that comprised in the merged layer are second sensing electrodes, while the organic light-emitting electrodes are counter electrodes which originally belong to the organic light-emitting assembly; and

forming the upper substrate and the lower substrate as an assembly.

10. The method for manufacturing the touch sensitive display according to claim 9, wherein the organic light-emitting assembly further comprises a thin-film transistor assembly, a pixel electrode layer, and an intermediate layer, which are integrally formed on the upper surface of the lower substrate.

11. The method for manufacturing the touch sensitive display according to claim 10, wherein the intermediate layer comprises an electron injecting layer, an electron transfer layer, an organic light-emitting layer, a hole transfer layer, and a hole injecting layer.

12. The method for manufacturing the touch sensitive display according to claim 9, further comprising:

forming the first touch sensing layer on the upper surface of the upper substrate, and the merged layer is formed below the lower surface of the upper substrate as the top layer of the upper surface of the lower substrate.

13. The method for manufacturing the touch sensitive display according to claim 9, further comprising:

forming the first touch sensing layer on the lower surface of the upper substrate, and the merged layer is formed below the first touch sensing layer as the top layer of the upper surface of the lower substrate.

14. The method for manufacturing the touch sensitive display according to claim 9, further comprising that forming a sealing layer in the peripheral area between the upper substrate and the lower substrate to make the upper substrate and the lower substrate are oppositely formed as an assembly.