ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE AND INPUT DEVICE-ATTACHED ELECTRO-OPTICAL APPARATUS

• US 20160179254A1
• Filed: 03/01/2016
• Published: 06/23/2016
• Est. Priority Date: 10/21/2009
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: Kurashima, Takeshi
• Granted Patent: US 9,588,630 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 3/0418 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

Abstract

An electrostatic capacitance-type input device in which input position detecting electrodes are disposed in an input area of a substrate, includes a lower layer-side conductive film, an interlayer insulating film, and an upper layer-side conductive film, which are stacked on the substrate in order from the substrate side. A first input position detecting electrode and a second input position detecting electrode are formed as the input position detecting electrodes by a first conductive film out of the lower and upper layer-side conductive films. A relay electrode overlaps with the first input position detecting electrode in the intersection portion to be electrically connected to the discontinued portion of the second input position detecting electrode. An input area shield electrode that overlaps with the first and second input position detecting electrodes are formed by a second conductive film out of the lower and upper layer-side conductive films.

Claims

1. An electrostatic capacitance-type input device in which a plurality of input position detecting electrodes are disposed in an input area of a substrate, the electrostatic capacitance-type input device comprising:

a lower layer-side conductive film;

an interlayer insulating film; and

an upper layer-side conductive film, which are stacked on the substrate in this order from the substrate side,

wherein a first input position detecting electrode that extends in a first direction of an in-plane direction of the substrate and a second input position detecting electrode that extends in a second direction intersecting the first direction of the in-plane direction of the substrate and includes a discontinued portion in an intersection portion of the first input position detecting electrode and the second input position detecting electrode are formed as the input position detecting electrodes by a first conductive film, which is positioned in an input operation side, out of the lower layer-side conductive film and the upper layer-side conductive film, and

wherein a relay electrode that overlaps with the first input position detecting electrode through the interlayer insulating film in the intersection portion so as to be electrically connected to the discontinued portion of the second input position detecting electrode and an input area shield electrode that is separated from the relay electrode and overlaps with the first input position detecting electrode and the second input position detecting electrode through the interlayer insulating film in a plan view are formed by a second conductive film, which is positioned on a side opposite to the input operation side, out of the lower layer-side conductive film and the upper layer-side conductive film.