PRESSURE DETECTABLE TOUCH INPUT DEVICE INCLUDING DISPLAY MODULE

• US 20180150153A1
• Filed: 05/26/2016
• Published: 05/31/2018
• Est. Priority Date: 06/17/2015
• Status: Active Grant

• Current Assignee: HiDeep Inc.
• Original Assignee: HiDeep Inc.
• Inventors: Yoon, Sang Sic, Kim, Se Yeob, Kim, Yun Joung, Kim, Bon Kee
• Granted Patent: US 10,983,646 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

A touch input device which includes a display module and is capable of detecting a pressure may be provided. The touch input device includes: a display module including a flat portion and at least one curved portion which extends from the flat portion and is curved with a predetermined curvature; and a pressure detection module which is formed under the display module and detects a touch pressure applied to a surface of the display module. The pressure detection module detects the touch pressure on the basis of a capacitance change amount according to a distance change between a reference potential layer and the pressure detection module. As a result, the touch input device including various types and forms of the display modules is capable of efficiently detecting the touch position and touch pressure.

Claims

1. A touch input device comprising:

a display module comprising a flat portion and at least one curved portion which extends from the flat portion and is curved with a predetermined curvature; and

a pressure detection module which is formed under the display module and detects a touch pressure applied to a surface of the display module,

wherein the pressure detection module detects the touch pressure on the basis of a capacitance change amount according to a distance change between a reference potential layer and the pressure detection module.

2. The touch input device of claim 1, wherein the pressure detection module is located under at least one of the flat portion and the curved portion of the display module.

3. The touch input device of claim 1, wherein the pressure detection module comprises an electrode for detecting the pressure and detects the touch pressure on the basis of a capacitance change amount according to a distance change between the electrode and the reference potential layer by the touch.

4. The touch input device of claim 1, wherein the display module comprises an OLED panel.

5. The touch input device of claim 1, wherein the reference potential layer is formed of a substrate made of a flexible material.

6. The touch input device of claim 1, wherein the curved portion extends from at least one of both sides of the flat portion.

7. A touch input device comprising:

a display module having a shape curved with a predetermined curvature; and

a pressure detection module which is formed under the display module and detects a touch pressure applied to a surface of the display module,

wherein the pressure detection module detects the touch pressure on the basis of a capacitance change amount according to a distance change between a reference potential layer and the pressure detection module.

8. The touch input device of claim 7, wherein the pressure detection module comprises an electrode for detecting the pressure and detects the touch pressure on the basis of a capacitance change amount according to a distance change between the electrode and the reference potential layer by the touch.

9. The touch input device of claim 7, wherein the display module comprises an OLED panel.

10. A touch input device capable of detecting a touch position and a touch pressure,

wherein a front side of the touch input device comprises:

a touch sensor panel which detects the touch position; and

a display module which is provided under the touch sensor panel,

wherein a pressure detection module which detects the touch pressure on the basis of a capacitance change amount according to a distance change between a reference potential layer and the pressure detection module is provided in at least one of right, left, up and down sides and back side.

11. The touch input device of claim 10, wherein the pressure detection module is located under a side cover provided on the side of the touch input device.

12. The touch input device of claim 10, wherein the pressure detection module is located under a side display module provided on the side of the touch input device.

13. The touch input device of claim 12, further comprising a side touch sensor panel which is provided on the side display module and detects the touch position on the side.

14. A touch input device which is capable of detecting a touch position and a touch pressure and has a front side thereof divided into a display area and a non-display area, the display area comprising:

a touch sensor panel which detects the touch position; and

a display module which is provided under the touch sensor panel,

wherein the non-display area comprises at least one pressure detection module which detects the touch pressure on the basis of a capacitance change amount according to a distance change between a reference potential layer and the pressure detection module.

15. The touch input device of claim 14, wherein the at least one pressure detection module is covered by a cover layer made of a flexible material.