TOUCH DISPLAY APPARATUS

• US 20120120011A1
• Filed: 11/10/2011
• Published: 05/17/2012
• Est. Priority Date: 11/11/2010
• Status: Abandoned Application

• Current Assignee: Dongguan Masstop Liquid Crystal Display Company Limited (Wintek Corporation), Wintek Corporation
• Original Assignee: Dongguan Masstop Liquid Crystal Display Company Limited (Wintek Corporation), Wintek Corporation
• Inventors: Teng, Chih-Jung, Liu, Chin-Chang
• Application Number:
  US13/293,126
• Publication Number:
  US 20120120011A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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 apparatus including a display panel, a touch panel, an insulation element, and a shielding electrode layer is provided. The touch panel disposed on the display panel includes a substrate, first sensing series, and second sensing series. The insulation element is disposed between the touch panel and the display panel. The shielding electrode layer is disposed between the insulation element and the display panel and includes shielding electrode stripes. Each first sensing series includes first sensing electrodes orthogonally projected on the display panel in a first area. Each second sensing series includes second sensing electrodes orthogonally projected on the display panel in a second area. The first area is separated from an adjacent second area in a distance. Each shielding electrode stripe is orthogonally projected on the display panel in a third area with a width at least identical to the distance.

Claims

1. A touch display apparatus, comprising:

a display panel;

a touch panel, comprising;

a first substrate located above the display panel;

a plurality of first sensing series disposed on the first substrate, each of the first sensing series extending along a first direction and comprising a plurality of first sensing electrodes;

a plurality of second sensing series disposed between the first sensing series and the display panel, each of the second sensing series extending along a second direction to intersect with the first sensing series and comprising a plurality of second sensing electrodes, wherein each of the first sensing electrodes is orthogonally projected on the display panel in a first area, each of the second sensing electrodes is orthogonally projected on the display panel in a second area, and the first area is separated from an adjacent second area in a distance;

a insulation element disposed between the second sensing series and the display panel; and

a shielding electrode layer disposed between the insulation element and the display panel, and comprising a plurality of shielding electrode stripes, wherein each of the shielding electrode stripes is orthogonally projected on the display panel in a third area at least with a width identical to the distance.

2. The touch display apparatus as claimed in claim 1, wherein the third area overlaps with at least one of the first area and the second area.

3. The touch display apparatus as claimed in claim 1, wherein the shielding electrode layer further comprises a shielding electrode ring and a plurality of protrusions, the shielding electrode ring substantially surrounds the shielding electrode stripes, and each of the protrusions is located on the shielding electrode ring and has a sharp point pointing to a terminal of an adjacent shielding electrode stripe.

4. The touch display apparatus as claimed in claim 1, wherein the shielding electrode stripes are connected together to form a shielding electrode net.

5. The touch display apparatus as claimed in claim 1, wherein the shielding electrode stripes comprises a plurality of crossing shielding patterns, and a terminal of each crossing shielding pattern points to a terminal of another crossing shielding pattern.

6. The touch display apparatus as claimed in claim 1, wherein the insulation element is an insulation layer or an insulation substrate.

7. The touch display apparatus as claimed in claim 1, wherein the touch panel further comprises an insulation layer, the first sensing series are located between the first substrate and the insulation layer, and the insulation layer is located between the first substrate and the second sensing series.

8. The touch display apparatus as claimed in claim 7, wherein the touch panel further comprises a second substrate disposed between the insulation layer and the second sensing series, and the insulation layer is an optical glue.

9. The touch display apparatus as claimed in claim 1, wherein the first sensing series and the second series are respectively disposed at two opposite sides of the first substrate.

10. The touch display apparatus as claimed in claim 1, wherein the shielding electrode layer, the first sensing electrodes, and the second sensing electrodes are made of the same material.

11. The touch display apparatus as claimed in claim 1, wherein the first substrate is a glass substrate, a plastic substrate or a cover plate.

12. The touch display apparatus as claimed in claim 11, wherein the cover plate comprises a base substrate and a decoration layer located at a side of the base substrate adjacent to the display panel or away from the display panel.

13. The touch display apparatus as claimed in claim 12, wherein the material of the decoration layer includes diamond-like carbon, ceramic, colored ink, resin, photo resist or the combination thereof.