Touch input device

Patent metadata

Field	Value
Publication number	US-12086370-B2
Application number	US-202318208656-A
Country	US
Kind code	B2
Filing date	Jun 12, 2023
Priority date	Aug 1, 2014
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

A touch input device is disclosed that may comprise a display panel and/or a touch sensor. The touch sensor may include a driving electrode and/or a receiving electrode that may be disposed on the display panel and/or inside the display panel. The touch input device may comprise an electrode pattern that may be disposed on a bottom surface of the display panel. The touch input device may comprise a controller that may be configured to provide a first driving signal to the driving electrode of the touch sensor. The controller may be configured to receive a touch detection signal from the receiving electrode of the touch sensor. The controller may be configured to detect a touch position, perhaps for example based on the touch detection signal. The controller may be configured to provide a second driving signal different from the first driving signal to the electrode pattern.

First claim

What is claimed is:

1. A touch input device comprising:
a display panel;
a touch sensor including a driving electrode and a receiving electrode disposed in the display panel;
an electrode pattern disposed in the display panel; and
a controller configured to:
provide a first driving signal to the driving electrode of the touch sensor,
receive a touch detection signal from the receiving electrode of the touch sensor,
detect a touch position based on the touch detection signal, and
provide a second driving signal different from the first driving signal to the electrode pattern, wherein the electrode pattern comprises:
a plurality of first electrode patterns extending in parallel along a first direction; and
a second electrode pattern electrically connected to one end of each of the plurality of first electrode patterns.

2. The touch input device of claim 1 , wherein the second electrode pattern extends along a second direction perpendicular to the first direction.

3. The touch input device of claim 1 , wherein at least a portion of the touch sensor overlaps the electrode pattern.

4. The touch input device of claim 1 , wherein at least a portion of the touch sensor is disposed on the same layer as the electrode pattern.

5. The touch input device of claim 1 , wherein the display panel comprises:
a first transparent layer;
a cell layer disposed under the first transparent layer; and
a second transparent layer disposed under the cell layer.

6. The touch input device of claim 5 , wherein the touch sensor and the electrode pattern are disposed on the first transparent layer.

7. The touch input device of claim 1 , wherein the driving electrode extends along the first direction, and wherein the receiving electrode extends along a second direction perpendicular to the first direction.

8. The touch input device of claim 1 , wherein the receiving electrode extends along the first direction, and wherein the driving electrode extends along a second direction perpendicular to the first direction.

9. The touch input device of claim 1 , wherein the controller is configured to receive a signal from the electrode pattern.

10. The touch input device of claim 1 , wherein the electrode pattern further comprises:
a plurality of third electrode patterns extending in parallel along a second different from the first direction; and
a fourth electrode pattern electrically connected to one end of each of the plurality of third electrode patterns.

Assignees

• Hideep Inc

Inventors

• Kim Seyeob
• Yoon Sangsic
• Kwon Sunyoung
• Moon Hojun
• Kim Taehoon
• Kim Bonkee

Classifications

• G06F3/0447

  Position sensing using the local deformation of sensor cells · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/04166

  Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184) · CPC title

• G06F2203/04105

  Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title