TOUCH PANEL AND DISPLAY DEVICE

• US 20150015517A1
• Filed: 11/19/2013
• Published: 01/15/2015
• Est. Priority Date: 05/30/2013
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Zhao, Lijun
• Application Number:
  US14/351,716
• Publication Number:
  US 20150015517A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 1/3262 Power saving in digitizer or tablet
• 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: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch panel and a display device are provided. The touch panel includes a first substrate, a color filter layer including a plurality of color pixel units arranged in a matrix being disposed on the first substrate, the first substrate further including a plurality of touch sensing electrodes and a plurality of touch driving electrodes, wherein, the touch sensing electrodes are disposed between color pixel units in adjacent rows or in adjacent column and have a function of shielding light; and the touch driving electrodes are disposed to be insulated from and cross the touch sensing electrodes, and are applied with touch scanning signals at a touch stage and are applied with common electrode signals at a display stage. The above touch panel can simplify the structure and the manufacturing process of in-cell touch panels.

Claims

1. A touch panel comprising a first substrate, which is provided thereon with a color filter layer including a plurality of color pixel units arranged in a matrix, the first substrate further comprising a plurality of touch sensing electrodes and a plurality of touch driving electrodes, wherein,

the touch sensing electrodes are disposed between color pixel units in adjacent rows or in adjacent column and have a function of shielding light;

and

the touch driving electrodes are disposed to be insulated from and cross the touch sensing electrodes, and are applied with touch scanning signals at a touch stage and are applied with common electrode signals at a display stage.

2. The touch panel of claim 1, wherein the touch sensing electrodes are formed by an opaque conductive oxide material or opaque conductive metal material.

3. The touch panel of claim 1, wherein light shielding strips are further disposed on the first substrate and the light shielding strips are disposed between the color pixel units in adjacent rows or in adjacent column except positions being disposed with the touch sensing electrodes.

4. The touch panel of claim 3, wherein the light shielding strips are formed of a black resin insulation material.

5. The touch panel of claim 3, wherein floating electrodes are disposed between adjacent touch sensing electrodes on the first substrate.

6. The touch panel of claim 1, further comprising a second substrate disposed opposite to the first substrate, wherein a plurality of pixel display units arranged in a same way as the color pixel units are formed on the second substrate, a reflective region and a transmissive region are provided in each of the pixel display units, a metal reflective layer is disposed in the reflective region, and the reflective region surrounds the transmissive region.

7. The touch panel of claim 6, wherein the metal reflective layer covers a portion of a region between adjacent pixel display units in the column direction.

8. The touch panel of claim 7, wherein the touch sensing electrodes are disposed between the color pixel units in adjacent columns.

9. The touch panel of claim 5, wherein the touch driving electrodes and the touch sensing electrodes are disposed on different layers and are disposed in a row direction of the color pixel units.

10. A display device comprising the touch panel of claim 1.

11. The touch panel of claim 2, wherein light shielding strips are further disposed on the first substrate and the light shielding strips are disposed between the color pixel units in adjacent rows or in adjacent column except positions being disposed with the touch sensing electrodes.

12. The touch panel of claim 11, wherein the light shielding strips are formed of a black resin insulation material.

13. The touch panel of claim 11, wherein floating electrodes are disposed between adjacent touch sensing electrodes on the first substrate.

14. The touch panel of claim 13, wherein the touch driving electrodes and the touch sensing electrodes are disposed on different layers and are disposed in a row direction of the color pixel units.

15. The touch panel of claim 2, further comprising a second substrate disposed opposite to the first substrate, wherein a plurality of pixel display units arranged in a same way as the color pixel units are formed on the second substrate, a reflective region and a transmissive region are provided in each of the pixel display units, a metal reflective layer is disposed in the reflective region, and the reflective region surrounds the transmissive region.

16. The touch panel of claim 15, wherein the metal reflective layer covers a portion of a region between adjacent pixel display units in the column direction.

17. The touch panel of claim 16, wherein the touch sensing electrodes are disposed between the color pixel units in adjacent columns.

18. The touch panel of claim 17, wherein the touch driving electrodes and the touch sensing electrodes are disposed on different layers and are disposed in a row direction of the color pixel units.