Display device

• US 9,477,366 B2
• Filed: 04/12/2016
• Issued: 10/25/2016
• Est. Priority Date: 01/18/2011
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: Kubo, Masaki, Nishitani, Shigeyuki
• Primary Examiner(s): NGUYEN, KIMNHUNG T
• Application Number:
  US15/096,396
• Publication Number:
  US 20160224161A1
• Time in Patent Office: 196 Days
• Field of Search: 345173-179, 178 1801- 1804, 349/56
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/0339 Touch strips, e.g. orthogonal touch strips to control cursor movement or scrolling; single touch strip to adjust parameter or to implement a row of soft keys
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04107 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 3/03547 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 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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

Abstract

A display device which can achieve compatibility between the simplicity of the configuration or control of electronic equipment and the maintaining of its high operability includes: a display panel and a touch panel arranged on a front surface side of the display panel as viewed from a viewer. The touch panel includes one transparent substrate and a conductive pattern disposed on the substrate. A plurality of detection areas in each of which a touch position can be detected are provided in the touch panel. A non-detection area in which the touch position is not detected is provided between two detection areas next to each other.

Claims

1. A display device comprising:

a display area;

a position detection area overlapped with the display area and including a plurality of first detection electrodes;

a button detection area including a first button electrode and a second button electrode; and

a non-detection area provided between the position detection area and the button detection area, and including a plurality of wirings;

wherein

the position detection area in which a touch position can be detected by detecting a capacitance of the first detection electrode corresponding to the touch position,

the button detection area in which a touch presence can be detected by detecting a capacitance between the first button electrode and the second button electrode,

the first button electrode electrically connects with a first wiring of the plurality of wirings,

the second button electrode electrically connects with a second wiring of the plurality of wirings, and

the first button electrode and the second button electrode are not overlapped each other.

2. The display device according to claim 1, wherein

the first button electrode is provided at an end of the first wiring, and

the second button electrode is provided at an end of the second wiring.

3. The display device according to claim 1,

further comprising a plurality of connecting terminals, wherein

the plurality of connecting terminals are arranged along a side edge of the display area,

the plurality of connecting terminal are electrically connected with the plurality of wirings each other.

4. The display device according to claim 3, wherein

the position detection area provided between the non-detection area and the plurality of connecting terminals.

5. The display device according to claim 1,

further comprising a shielding layer, wherein

the shielding layer overlaps the non-detection area.

6. The display device according to claim 5, wherein

the shielding layer has a first opening and a second opening,

the first opening overlaps the position detection area, and

the second opening overlaps the button detection area.

7. A display device comprising:

a display area;

a light shielding area surrounding the display area;

a first detection area overlapped with the display area and including a plurality of detection electrodes;

a second detection area including a first electrode and second electrode;

a non-detection area including a first wiring, a second wiring, and a third wiring; and

a plurality of terminals arranged along a first side edge of the display area, and including a first terminal, a second terminal, and third terminal,

wherein

the first detection area in which a touch position can be detected by detecting a capacitance of the detection electrode corresponding to the touch position,

the second detection area in which a touch presence can be detected by detecting a capacitance of the first electrode and the second electrode,

the non-detection area is overlapped with the light shielding area,

the plurality of the detection electrodes are electrically connected with the first wiring,

the first electrode is electrically connected with the second wiring and provided at an end of the second wiring,

the second electrode is electrically connected with the third wiring and provided at an end of the third wiring,

the plurality of the detection electrodes are electrically connected with the first terminal by the first wiring,

the first electrode is electrically connected with the second terminal by the second wiring, and

the second electrode is electrically connected with the third terminal by the third wiring.

8. The display device according to claim 7, wherein

the shielding area has a first opening and a second opening,

the first opening overlaps the first detection area, and

the second opening overlaps the second detection area.

9. The display device according to claim 8, wherein

the shielding area overlaps with the plurality of terminals.