TOUCH PANEL, TOUCH DISPLAY PANEL, AND TOUCH SENSING METHOD

• US 20110199324A1
• Filed: 02/11/2011
• Published: 08/18/2011
• Est. Priority Date: 02/12/2010
• Status: Active Grant

• 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: Wang, Wen-Chun, Hsu, Ching-Fu, Liao, Wen-Tui
• Granted Patent: US 8,816,970 B2
• 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
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A touch panel including first electrode bands, second electrode bands, and a transparent dielectric material is provided. The first electrode bands are disposed on a first substrate and extended in a first direction, wherein each of the first electrodes has a plurality of first silts in the form of enclosed configuration. The second electrode bands are disposed on a second substrate, facing to the first electrode bands, and extended in a second direction interlacing the first direction. Each second electrode band is partially exposed by the first silts. The transparent dielectric material is disposed between the first electrode bands and the second electrode bands to provide a changeable gap.

Claims

1. A touch panel, comprising:

a plurality of first electrode bands disposed on a first substrate and extended in a first direction, wherein each of the first electrodes has a plurality of first silts in a form of enclosed configuration;

a plurality of second electrode bands disposed on a second substrate, facing to the first electrode bands, and extended in a second direction interlacing the first direction, wherein each of the second electrode bands is partially exposed by the first slits; and

a transparent dielectric material disposed between the first electrode bands and the second electrode bands to provide a changeable gap.

2. The touch panel according to claim 1, wherein each of the first silts is extended in the first direction or in the second direction.

3. The touch panel according to claim 1, wherein each of the second electrode bands has a plurality of second slits in the form of enclosed configuration.

4. The touch panel according to claim 3, wherein the first silts and the second slits are respectively extended in different directions.

5. The touch panel according to claim 1, further comprising:

a plurality of first transmission lines disposed on the first substrate;

a plurality of second transmission lines disposed on the first substrate, wherein each of the first transmission lines and corresponding one of the second transmission lines are respectively connected to two opposite ends of one of the first electrode bands;

a plurality of third transmission lines disposed on the second substrate; and

a plurality of fourth transmission lines disposed on the second substrate, wherein each of the third transmission lines and corresponding one of the fourth transmission lines are respectively connected to two opposite ends of one of the second electrode bands.

6. The touch panel according to claim 5, further comprising a plurality of first pads and a plurality of second pads, wherein the first pads are electrically connected to the first transmission lines and the second transmission lines and the second pads are electrically connected to the third transmission lines and the fourth transmission lines.

7. The touch panel according to claim 6, wherein the first pads are disposed on the first substrate, and the second pads are disposed on the second substrate.

8. The touch panel according to claim 6, wherein the first pads and the second pads are disposed on the second substrate.

9. The touch panel according to claim 8, further comprising a plurality of conductive spacers connected between the first transmission lines and a part of the first pads and connected between the second transmission lines and another part of the first pads.

10. The touch panel according to claim 1, wherein the transparent dielectric material comprises air, silicon gel, or silicon oil.

11. The touch panel according to claim 1, further comprising a plurality of insulating spacers disposed between the first electrode bands and the second electrode bands.