# US 10,871,865 B2 · Display device

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- Number: US 10,871,865 B2
- Document ID: US10871865B2
- Status: Granted
- Kind: B2
- Application number: 16/779,730
- Filed: 2020-02-03
- Published: 2020-06-04
- Granted: 2020-12-22
- Earliest claimed: 2017-08-09
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Heisuke Kanaya
- Web page: https://patentgrep.com/patent/US10871865B2

## CPC

- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G06F 3/0393: {Accessories for touch pads or touch screens, e.g. mechanical guides added to touch screens for drawing straight lines, hard keys overlaying touch screens or touch pads}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/044: by capacitive means
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
- H05B 33/02: Details
- H05B 33/04: Sealing arrangements {, e.g. against humidity}
- G01P 1/10: for indicating predetermined speeds
- H10K 59/871: {Self-supporting sealing arrangements}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G})
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display device according to an embodiment of the present invention includes: a display panel; a touch sensor located on the display panel; and a pointer made of a conductive material that moves on a region where the touch sensor is provided below the touch sensor; wherein the pointer is electrically connected to a lower electrode of the touch sensor.

## Claims

### Claim 1

A display device comprising:
a display panel;
a touch sensor located on the display panel; and
a pointer including a conductive material that moves on a region where the touch sensor is provided below the touch sensor; wherein
the pointer is electrically connected to a lower electrode of the touch sensor.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein
the lower electrode of the touch sensor is connected to the pointer through a housing or a conductive wire.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein
the lower electrode of the touch sensor is connected to a ground potential.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein
the display panel comprises:
a substrate,
a plurality of pixels located on the substrate and having a light emitting element;
a display area in which the plurality of pixels are arranged;
a thin film transistor included in each of the plurality of pixels;
a protective film located between the thin film transistor and the light emitting element, and made of an inorganic insulating material; and
a sealing film covering the light emitting element and including an inorganic insulating material, and
the inorganic insulating material included in the sealing film is in contact with the protective film in a first region between the plurality of pixels and a through-hole.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein
the display panel comprises:
a substrate,
a plurality of pixels located on the substrate and having a light emitting element;
a display area in which the plurality of pixels are arranged; and
a sealing film that covers the light emitting element and includes a first inorganic insulating layer, an organic insulating layer, and a second inorganic insulating layer stacked from the light emitting element side, and
the first inorganic insulating layer is in contact with the second inorganic insulating layer in a first region between the plurality of pixels and a through-hole.
