Touch sensor
US-2015378493-A1 · Dec 31, 2015 · US
Display device
US2017338287A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017338287-A1 |
| Application number | US-201715492083-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 20, 2017 |
| Priority date | May 18, 2016 |
| Publication date | Nov 23, 2017 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A display device includes a flexible substrate having a display region including a plurality of pixels, each of the plurality of pixels having a pair of electrodes and a display element therebetween; a first electrode layer provided on the plurality of pixels; a second electrode layer provided on the first electrode layer; a third electrode layer provided on the second electrode layer; a piezoelectric material layer provided between the first electrode layer and the second electrode layer; and a flexible material layer provided between the second electrode layer and the third electrode layer.
First claim
Opening claim text (preview).
1 . A display device, comprising: a flexible substrate having a display region, the display region including a plurality of pixels, each of the plurality of pixels having a pair of electrodes and a display element therebetween; a first electrode layer provided on the plurality of pixels; a second electrode layer provided on the first electrode layer; a third electrode layer provided on the second electrode layer; a piezoelectric material layer provided between the first electrode layer and the second electrode layer; and a flexible material layer provided between the second electrode layer and the third electrode layer. 2 . The display device according to claim 1 , wherein: the first electrode layer, the second electrode layer and the piezoelectric material layer are included in a bending sensor detecting a direction and an amount of a bending of the substrate; the second electrode layer, the third electrode layer and the flexible material layer are included in a press sensor detecting a pressure applied to a region overlapping the display region; and the third electrode layer includes a plurality of electrodes arrayed in a matrix and is included in a touch sensor detecting a touch of a conductor with the region overlapping the display region based on mutual capacitance between the plurality of electrodes. 3 . The display device according to claim 1 , wherein at least one of the first electrode layer, the second electrode layer and the third electrode layer includes a transparent conductive layer. 4 . The display device according to claim 1 , wherein at least one of the first electrode layer, the second electrode layer and the third electrode layer includes a metal layer including openings in regions overlapping the plurality of pixels. 5 . The display device according to claim 1 , wherein the first electrode layer includes a plurality of electrodes arrayed in at least one of a row direction and a column direction. 6 . The display device according to claim 2 , wherein the display device is configured to perform driving in a time division manner such that: the touch sensor is driven in a first frame period; the press sensor is driven in a second frame period; and the bending sensor is driven in a third frame period. 7 . The display device according to claim 6 , wherein the first frame period and the third frame period include an overlapping period.
Assignees
Inventors
Classifications
Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title
Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title
by capacitive means · CPC title
Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title
- G06F3/0414Primary
using force sensing means to determine a position · CPC title
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Frequently asked questions
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- What does patent US2017338287A1 cover?
- A display device includes a flexible substrate having a display region including a plurality of pixels, each of the plurality of pixels having a pair of electrodes and a display element therebetween; a first electrode layer provided on the plurality of pixels; a second electrode layer provided on the first electrode layer; a third electrode layer provided on the second electrode layer; a piezoe…
- Who is the assignee on this patent?
- Japan Display Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0414. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 23 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).