Smartphone

• US 9,454,253 B2
• Filed: 01/11/2016
• Issued: 09/27/2016
• Est. Priority Date: 08/01/2014
• Status: Active Grant

• Current Assignee: HiDeep Inc.
• Original Assignee: HiDeep Inc.
• Inventors: Kim, Seyeob, Yoon, Sangsic, Moon, Hojun, Kim, Taehoon
• Primary Examiner(s): Zhou, Hong
• Application Number:
  US14/992,568
• Publication Number:
  US 20160124570A1
• Time in Patent Office: 260 Days
• Field of Search: 345/169, 345173-174, 178/18.06
• US Class Current: 1/1
• 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 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• 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 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 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 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 smartphone includes: a cover layer; a display module, and comprises a component configured to cause the LCD panel to perform a display function; a pressure electrode which is located under the display module; and a shielding member which is located under the pressure electrode. At least a portion of a touch sensor which senses touch in a capacitive manner is located in the display module.

Claims

1. An electrode sheet comprising:

a first insulation layer and a second insulation layer; and

a first electrode and a second electrode which are located between the first insulation layer and the second insulation layer,

wherein a capacitance between the first electrode and the second electrode is detected, which is changed according to a relative distance change between the electrode sheet and a reference potential layer located apart from the electrode sheet,

wherein a magnitude of a pressure which causes the distance change is detected according to the change of the capacitance,

wherein the electrode sheet is attached to a touch input device comprising a substrate and a display module, the electrode sheet being attached to one of a surface of the substrate facing the display module or a surface of the display module facing the substrate, and the electrode sheet being spaced apart from the other of the surface of the substrate facing the display module or the surface of the display module facing the substrate,

wherein the display module and the substrate are supported in a spaced apart manner a predetermined distance in a vertical direction by a supporting structure located only in an edge portion,

wherein when a pressure is applied, the display module is bent, and wherein the distance between the electrode sheet and the reference potential layer is changed as the display module is bent, and

wherein one of the substrate or the display module comprises the reference potential layer.

2. The electrode sheet of claim 1, wherein the first electrode or the second electrode constitute a plurality of channels.

3. The electrode sheet of claim 2, wherein the electrode sheet is able to detect a pressure of each of multi touch by using the plurality of channels.

4. An electrode sheet comprising:

a first insulation layer and a second insulation layer; and

an electrode which is located between the first insulation layer and the second insulation layer,

wherein a capacitance between the electrode and a reference potential layer is detected, which is changed according to a relative distance change between the electrode sheet and the reference potential layer located apart from the electrode sheet,

wherein a magnitude of a pressure which causes the distance change is detected according to the change of the capacitance,

wherein the electrode sheet is attached to a touch input device comprising a substrate and a display module, the electrode sheet being attached to one of a surface of the substrate facing the display module or a surface of the display module facing the substrate, and the electrode sheet being spaced apart from the other of the surface of the substrate facing the display module or the surface of the display module facing the substrate,

wherein the display module and the substrate are supported in a spaced apart manner a predetermined distance in a vertical direction by a supporting structure located only in an edge portion,

wherein when a pressure is applied, the display module is bent, and wherein the distance between the electrode sheet and the reference potential layer is changed as the display module is bent, and

wherein one of the substrate or the display module comprises the reference potential layer.

5. The electrode sheet of claim 4, wherein the electrode constitutes a plurality of channels.

6. The electrode sheet of claim 5, wherein the electrode sheet is able to detect a pressure of each of multi touch by using the plurality of channels.

7. An electrode sheet comprising:

a first electrode sheet comprising a first insulation layer, a second insulation layer, and a first electrode located between the first insulation layer and the second insulation layer; and

a second electrode sheet comprising a third insulation layer, a fourth insulation layer, and a second electrode located between the third insulation layer and the fourth insulation layer,

wherein a capacitance between the first electrode and the second electrode is detected, which is changed according to a relative distance change between the first electrode sheet and the second electrode sheet,

wherein a magnitude of a pressure which causes the distance change is detected according to the change of the capacitance,

wherein the first electrode sheet is attached to a touch input device comprising a substrate and a display module, the first electrode sheet being attached to one of a surface of the substrate facing the display module or a surface of the display module facing the substrate,

wherein the second electrode sheet is attached to the other of the surface of the substrate facing the display module or the surface of the display module facing the substrate,

wherein the display module and the substrate are supported in a spaced apart manner a predetermined distance in a vertical direction by a supporting structure located only in an edge portion,

wherein the first electrode sheet is spaced apart from the second electrode sheet, and

wherein when a pressure is applied, the display module is bent, and wherein the distance between the first electrode sheet and the second electrode sheet is changed as the display module is bent.

8. The electrode sheet of claim 7, wherein the first electrode or the second electrode constitute a plurality of channels.

9. The electrode sheet of claim 8, wherein the electrode sheet is able to detect a pressure of each of multi touch by using the plurality of channels.