Touch sensor

US11487375B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11487375-B2
Application numberUS-202117195053-A
CountryUS
Kind codeB2
Filing dateMar 8, 2021
Priority dateMar 10, 2020
Publication dateNov 1, 2022
Grant dateNov 1, 2022

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A touch sensor comprises a touch sensor layer having an electrode pad portion formed in a bezel area, and a polarizing layer coupled to the touch sensor layer while opening an area of the electrode pad portion and having a side surface of an area of the electrode pad portion defining an altered surface and a side surface excluding the area of the electrode pad portion defining a straight line surface. The altered surface and the straight line surface have a cross-sectional inclination angle of 30° or less in a lateral direction with respect to a vertical direction.

First claim

Opening claim text (preview).

The invention claimed is: 1. A touch sensor comprising: a touch sensor layer having an electrode pad portion formed in a bezel area; and a polarizing layer coupled to the touch sensor layer while opening an area of the electrode pad portion and having a side surface of an area of the electrode pad portion defining an altered surface and a side surface excluding the area of the electrode pad portion defining a straight line surface, wherein the altered surface has a cross-sectional inclination angle of 30° or less in a lateral direction with respect to a vertical direction, and the straight line surface has a cross-sectional inclination angle of 5° or more and 30° or less in a lateral direction with respect to a vertical direction. 2. The touch sensor according to claim 1 , wherein the altered surface has a cross-sectional inclination angle of 5° or less in a lateral direction with respect to a vertical direction. 3. The touch sensor according to claim 1 , wherein the polarizing layer has a side surface of the area of the electrode pad portion in a round shape in plan view. 4. A laminate comprising: the touch sensor according to claim 1 ; and a window laminated on the touch sensor. 5. The laminate according to claim 4 , further comprising a polarizing layer laminated on one surface of the touch sensor or the window. 6. The laminate according to claim 5 , further comprising a decorative film laminated on one surface of the touch sensor or the window. 7. The touch sensor according to claim 2 , wherein the polarizing layer has a side surface of the area of the electrode pad portion in a round shape in plan view. 8. A laminate comprising: the touch sensor according to claim 2 ; and a window laminated on the touch sensor.

Assignees

Inventors

Classifications

  • G06F3/0412Primary

    Digitisers structurally integrated in a display · CPC title

  • Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

  • using a single layer of sensing electrodes · CPC title

  • Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title

  • G06F3/041Primary

    Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

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Frequently asked questions

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What does patent US11487375B2 cover?
A touch sensor comprises a touch sensor layer having an electrode pad portion formed in a bezel area, and a polarizing layer coupled to the touch sensor layer while opening an area of the electrode pad portion and having a side surface of an area of the electrode pad portion defining an altered surface and a side surface excluding the area of the electrode pad portion defining a straight line s…
Who is the assignee on this patent?
Dongwoo Fine Chem Co Ltd
What technology area does this patent fall under?
Primary CPC classification G06F3/0412. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Nov 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).