Display apparatus and input device

Patent metadata

Field	Value
Publication number	US-12025874-B2
Application number	US-202318131906-A
Country	US
Kind code	B2
Filing date	Apr 7, 2023
Priority date	Aug 20, 2014
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A display apparatus includes a first substrate, a second substrate facing the first substrate, lead wirings provided on the first substrate or the second substrate and a first insulator part provided on an upper surface of the second substrate. The lead wirings are arranged in a peripheral region when seen in a plan view and the first insulator part is arranged so as to overlap a display region when seen in a plan view. Second insulator parts or spaces with a permittivity lower than a permittivity of the first insulator part are provided at sides of the first insulator part. The second insulator parts or the spaces are arranged so as to overlap the lead wirings in the peripheral region when seen in a plan view.

First claim

What is claimed is:

1. A touch sensing device comprising:
an electrode arranged in a first region on a first substrate;
a wiring arranged in a second region and connected to the electrode in the first region on the first substrate;
a film covering the electrode and the wiring;
an insulated layer overlapping with the first region on the film;
a space overlapping with the second region on the film; and
a cover plate arranged on the insulated layer and the space,
wherein a permittivity of space is equal to a permittivity of air,
a permittivity of the insulated layer is different than a permittivity of air,
the first region has four sides,
the space surrounds the four sides of the first region,
the insulated layer and the space are arranged on the same layer,
the electrode is arranged between the insulated layer and the first substrate, and
an adhesive force of the film to the first substrate is larger than an adhesive force of the insulated layer to the film.

2. The touch sensing device according to claim 1 , wherein,
wherein a sheet resistance of the film is 1×10 9 Ω/square or more.

3. The touch sensing device according to claim 1 , wherein,
a shape of the electrode is rectangular.

Assignees

• Japan Display Inc

Inventors

• Ishizaki Koji
• Ikeda Masanobu
• Kurasawa Hayato
• Watanabe Yoshihiro

Classifications

• G06F3/044

  by capacitive means · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G09G2330/06

  Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation · CPC title

• G09G2310/08

  Details of timing specific for flat panels, other than clock recovery · CPC title