MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME

• US 20160259481A1
• Filed: 05/12/2016
• Published: 09/08/2016
• Est. Priority Date: 04/11/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Hanbin
• Granted Patent: US 9,977,539 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 2203/04101 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• 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 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/04886 : by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: H04M 1/0266 : for a display module assembly
• CPC Class Codes: H04M 1/72469 : for operating the device by selecting functions from two or more displayed items, e.g. menus or icons
• CPC Class Codes: H10K 2102/311 : Flexible OLED
• CPC Class Codes: H10K 50/868 : Arrangements for polarized light emission H10K50/86 takes precedence
• CPC Class Codes: H10K 59/1213 : the pixel elements being TFTs
• CPC Class Codes: H10K 59/38 : comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/40 : OLEDs integrated with touch screens
• CPC Class Codes: H10K 59/8793 : Arrangements for polarized light emission H10K59/8791 takes precedence

Abstract

A force sensitive touch screen device can include a device body including a first region and a second region, a window on the device body and corresponding to the first and second regions, a display unit below the window corresponding to the first region, a key input unit on the second region, and a touch sensor including a first touch sensing layer, a second touch sensing layer, and a force sensing layer, in which the first and second touch sensing layers are between a polarizer layer and a thin film transistor (TFT) layer that can detect a position of a touch input by sensing a change of capacitance on the first sensing layer and the second sensing layer, the force sensing layer can detect a force of the touch input by sensing capacitance on the third sensing layer, and a finger scan sensor is installed in the key input unit.

Claims

1. A force sensitive touch screen device comprising:

a device body including a first region and a second region;

a window mounted on the device body and corresponding to the first region and the second region;

a display unit disposed below the window corresponding to the first region;

a key input unit disposed on the second region; and

a touch sensor comprising a first touch sensing layer, a second touch sensing layer, and a force sensing layer,

wherein the first touch sensing layer and the second touch sensing layer are disposed between a polarizer layer and a thin film transistor (TFT) layer configured to detect a position of a touch input by sensing a change of capacitance on the first sensing layer and the second sensing layer,

wherein the force sensing layer is configured detect a force of the touch input by sensing a change of capacitance on the third sensing layer, and

wherein a finger scan sensor is installed in the key input unit.

2. The force sensitive touch screen device according to claim 1, wherein one of the first touch sensing layer or the second touch sensing layer is a transmit (Tx) layer and the other of the first touch sensing layer or the second touch sensing layer is a receive (Rx) layer.

3. The force sensitive touch screen device according to claim 1, wherein the first touch sensing layer comprises a plurality of first sensing lines and the second touch sensing layer comprises a plurality of second sensing lines.

4. The force sensitive touch screen device according to claim 3, further comprising:

an insulating layer disposed in a region at which the first plurality of sensing lines cross the second plurality of sensing lines.

5. The force sensitive touch screen device according to claim 1, wherein the first touch sensing layer and the second touch sensing layer are disposed on a same layer.

6. The force sensitive touch screen device according to claim 1, further comprising:

a deformation region configured to deform with at least the first region or the second region of the window where the touch input is applied on the window.

7. The force sensitive touch screen device according to claim 6, wherein the force sensing layer is configured to detect the force of the touch input according to the deformation region deforming with at least the first region or the second region of the window where the touch input is applied on the window.

8. The force sensitive touch screen device according to claim 6, wherein the deformation region is a space.

9. A force sensitive touch screen device comprising:

a device body including a first region and a second region;

a window mounted on the device body and corresponding to the first region and the second region;

a display unit disposed below the window corresponding to the first region;

a key input unit disposed on the second region; and

a touch sensor comprising a first touch sensing layer, a second touch sensing layer, and a force sensing layer,

wherein the first touch sensing layer and the second touch sensing layer are disposed between a polarizer layer and a thin film transistor (TFT) layer configured to detect a position of a touch input by sensing a change of capacitance on the first sensing layer and the second sensing layer,

wherein an insulating layer is disposed between the first sensing layer and the second sensing layer,

wherein the force sensing layer is configured detect a force of the touch input by sensing a change of capacitance on the third sensing layer, and

wherein the key input unit is a mechanical key and a finger scan sensor is installed in the key input unit.

10. The force sensitive touch screen device according to claim 9, wherein one of the first touch sensing layer or the second touch sensing layer is a transmit (Tx) layer and the other of the first touch sensing layer or the second touch sensing layer is a receive (Rx) layer.

11. The force sensitive touch screen device according to claim 9, wherein the first touch sensing layer comprises a plurality of first sensing lines and the second touch sensing layer comprises a plurality of second sensing lines.

12. The force sensitive touch screen device according to claim 11, wherein the insulating layer is disposed in a region at which the first plurality of sensing lines cross the second plurality of sensing lines.

13. The force sensitive touch screen device according to claim 9, wherein the first touch sensing layer and the second touch sensing layer are disposed on a same layer.

14. The force sensitive touch screen device according to claim 9, further comprising:

a deformation region configured to deform with at least the first region or the second region of the window where the touch input is applied on the window.

15. The force sensitive touch screen device according to claim 14, wherein the force sensing layer is configured to detect the force of the touch input according to the deformation region deforming with at least the first region or the second region of the window where the touch input is applied on the window.

16. The force sensitive touch screen device according to claim 14, wherein the deformation region is a space.