US 2021/0240960 A1Published application

Detection apparatus

AssigneeJapan Display Inc.

InventorToshinori UEHARA

Life of this patent

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Abstract

A detection apparatus is provided and includes detection electrodes; detection circuit configured to be coupled to detection electrodes to detect detection signals corresponding to changes in capacitance of detection electrodes; coupling circuit configured to cause detection electrodes to be a coupled state in which detection electrodes are coupled to detection circuit and non-coupled state in which detection electrodes are uncoupled from detection circuit; drive electrode arranged at a position adjacent to detection electrodes; conductor arranged between detection electrodes and drive electrode; and drive signal generation circuit configured to be coupled to drive electrode to supply drive signal to drive electrode; wherein detection electrodes are provided to one face of insulating substrate, and wherein height of drive electrode from the one face is greater than height of the detection electrodes from the one face.

Claims7

Dependent claims

A detection apparatus comprising:

a plurality of detection electrodes arranged in a first direction and a second direction crossing the first direction;
a detection circuit configured to be coupled to the detection electrodes to detect detection signals corresponding to changes in capacitance of the detection electrodes;
a coupling circuit configured to cause the detection electrodes to be a coupled state in which the detection electrodes are coupled to the detection circuit and a non-coupled state in which the detection electrodes are uncoupled from the detection circuit;
a drive electrode arranged at a position adjacent to the detection electrodes;
a conductor arranged between the detection electrodes and the drive electrode;
and
a drive signal generation circuit configured to be coupled to the drive electrode to supply a drive signal to the drive electrode;
wherein the detection electrodes are provided to one face of an insulating substrate, and
wherein a height of the drive electrode from the one face is greater than a height of the detection electrodes from the one face.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/237,317Filed 22 Apr 2021
Priority: JP 2018-22609930 Nov 2018
Published: 5 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 3/04166
Control or interface arrangements specially adapted for digitisers: details of scanning methods, e.g. sampling time, grouping of sub areas or time…
G06V 40/1306
Sensors therefor: non-optical, e.g. ultrasonic or capacitive sensing
G06F 3/044
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: by capacitive means
G06F 3/0446
By capacitive means: using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Family

Application16/694,033Continuation · filed 25 Nov 2019
Application17/237,317Continuation
US 10,990,786 B2Related patent
US 11,263,425 B2Related patent
US 2020/0175242 A1Published application
US 2021/0240960 A1This patent

From the US filing history. Foreign family members aren’t listed.

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