TOUCH DISPLAY PANEL

• US 20130057495A1
• Filed: 08/31/2012
• Published: 03/07/2013
• Est. Priority Date: 09/02/2011
• Status: Abandoned Application

• Current Assignee: Wintek China Technology Ltd., Wintek Corporation
• Original Assignee: Wintek China Technology Ltd., Wintek Corporation
• Inventors: Wang, Wen-Chun, Su, Kuo-Chang, Liu, Chin-Chang, Teng, Chih-Jung
• Application Number:
  US13/600,244
• Publication Number:
  US 20130057495A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A touch display panel including an organic electro-luminescent display panel, a cover plate, a touch sensing element, and a decoration layer is provided. The organic electro-luminescent display panel includes a carrier plate, a packing cover, and a plurality of organic light emitting units. The carrier plate and the packing cover are assembled to construct a sealed space. The organic light emitting units are disposed on the carrier plate and located inside the sealed space. The cover plate is adhered on a side of the carrier plate away from the organic light emitting units. The touch sensing element is disposed between the carrier plate of the organic electro-luminescent display panel and the cover plate. The decoration layer is disposed on the cover plate.

Claims

1. A touch display panel, comprising:

a cover plate comprising a touch sensing element and a decoration layer, the decoration layer being located at a periphery of a surface of the cover plate;

an organic electro-luminescent display panel comprising a carrier plate, a packing cover, and a plurality of bottom emission type organic light emitting unit, the carrier plate and the packing cover being assembled together to form a sealed space, the organic light emitting units being disposed on the carrier plate and located inside the sealed space; and

an adhesion layer, the cover plate being adhered on the carrier plate through the adhesion layer.

2. The touch display panel as claimed in claim 1, further comprising a circular polarizer adhered between the carrier plate of the organic electro-luminescent display panel and the cover plate.

3. The touch display panel as claimed in claim 1, further comprising a shielding layer located between the carrier plate of the organic electro-luminescent display panel and the touch sensing element.

4. The touch display panel as claimed in claim 1, further comprising a driving chip and a flexible circuit board, the flexible circuit board being electrically connected to both of the organic light emitting units and the touch sensing element, and the driving chip being electrically connected to the organic light emitting units and the touch sensing element through the flexible circuit board.

5. The touch display panel as claimed in claim 4, wherein the driving chip has a plurality of first leads and a plurality of second leads, the first leads are electrically connected to the organic light emitting units, the second leads are electrically connected to the touch sensing element, a first connecting region is defined by the first leads, a second connecting region is defined by the second leads, and a distance between the first connecting region and the second connecting region is larger than a distance between any two adjacent first leads and larger than a distance between any two adjacent second leads.

6. The touch display panel as claimed in claim 1, wherein the organic electro-luminescent display panel further comprises an active device array disposed on the carrier plate and electrically connected to the organic light emitting units and the active device array comprises a plurality of scan lines, a plurality of data lines, and a plurality of active devices, wherein the scan lines are intersected with the data lines, each of the active devices electrically connected to a corresponding scan line, a corresponding data line, and a corresponding organic light emitting diode.

7. The touch display panel as claimed in claim 6, wherein the active device array further comprises a plurality of coupling patterns connected to the scan lines and overlapping the data lines.

8. The touch display panel as claimed in claim 6, wherein the touch sensing element comprises a plurality of sensing electrodes parallel to the data lines and a touch sensing capacitance is formed between the sensing electrodes and the scan lines.

9. The touch display panel as claimed in claim 1, wherein the touch sensing element comprises a plurality of first sensing series and a plurality of second sensing series, the first sensing series extend in a first direction, the second sensing series extend in a second direction and are separated from the first sensing series spatially, and the first direction intersects the second direction.

10. The touch display panel as claimed in claim 9, wherein each of the first sensing series comprises a plurality of first sensing electrodes and a plurality of first bridge electrodes electrically connecting the first sensing electrodes, each of the second sensing series comprises a plurality of second sensing electrodes and a plurality of second bridge electrodes electrically connecting the second sensing electrodes, each of the second bridge electrodes is electrically insulated from a corresponding first bridge electrode through an insulation pattern, the insulation pattern has through holes respectively located at two ends of the insulation pattern such that each of the second bridge electrode is electrically connected to two adjacent second sensing electrodes, and a total area constructed by overlapping of the insulation pattern and the two adjacent second sensing electrodes is smaller than 40% of an area of one second sensing electrode.

11. The touch display panel as claimed in claim 1, wherein the touch sensing element comprises a plurality of sensing electrodes formed by a same process, and two adjacent sensing electrodes are electrically unconnected with each other.

12. The touch display panel as claimed in claim 11, wherein the cover plate is a plastic substrate and the sensing electrodes are formed by a printing process.

13. The touch display panel as claimed in claim 1, wherein the decoration layer is disposed on a side of the cover plate away from the touch sensing element.