Touch input device

Patent metadata

Field	Value
Publication number	US-12517618-B2
Application number	US-202418827475-A
Country	US
Kind code	B2
Filing date	Sep 6, 2024
Priority date	Aug 1, 2014
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

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 . An electronic 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 first receiving signal from the receiving electrode of the touch sensor,
detect a first information based on the first receiving signal,
receive a second receiving signal different from the first receiving signal from the electrode pattern, and
detect a second information based on the second receiving signal,
wherein the electrode pattern comprises:
a first electrode pattern including a first portion extending along a first direction and a second portion extending in a second direction from one end of the first portion of the first electrode pattern; and
a second electrode pattern including a first portion extending along the first direction and a second portion extending in the second direction from the other end of the first portion of the second electrode pattern,
and wherein the first portion of the first electrode pattern and the first portion of the second electrode pattern are configured to be arranged adjacent to each other so that a capacitance is generated between the first portion of the first electrode pattern and the first portion of the second electrode pattern.

2 . The electronic device of claim 1 , wherein the first electrode pattern and the second electrode pattern are formed in the same layer.

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

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

7 . The electronic 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 electronic 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 electronic device of claim 1 , wherein the first electrode pattern is arranged at a predetermined distance from one edge of the display panel, and the second electrode pattern is arranged at a predetermined distance from the other edge of the display panel.

10 . The electronic device of claim 1 , wherein one end of the first portion of the second electrode pattern is positioned closer to the second portion of the first electrode pattern than the other end of the first portion of the second electrode pattern.

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