Invention Grant
- Patent Title: Apparatus for detecting electromagnetic touch
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Application No.: US17229112Application Date: 2021-04-13
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Publication No.: US11462665B2Publication Date: 2022-10-04
- Inventor: Weilong Zhou , De Yuan
- Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. , BOE Technology Group Co., Ltd.
- Applicant Address: CN Chengdu; CN Beijing
- Assignee: Chengdu BOE Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee: Chengdu BOE Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee Address: CN Chengdu; CN Beijing
- Agency: ArentFox Schiff LLP
- Agent Michael Fainberg
- Priority: CN201810706930.7 20180702
- Main IPC: H01L33/58
- IPC: H01L33/58 ; F21V29/90 ; F21V23/00 ; G02B7/02 ; H01L33/52 ; G06F3/044 ; H01L27/15 ; G06F3/046 ; G06F3/0354 ; G06F3/041

Abstract:
The disclosure discloses an apparatus for detecting an electromagnetic touch. The apparatus includes: a driving subcircuit configured to control organic light-emitting diodes arranged in an array in an organic light-emitting diode display panel to be lightened row by row; a detecting subcircuit configured to obtain detection current flowing through the lightened organic light-emitting diodes in real time, where the detection current of each of the lightened organic light-emitting diodes comprises inductive current of the organic light-emitting diode, and driving current of the organic light-emitting diode being lightened, and the inductive current is current, generated by the organic light-emitting diode, related to a magnetic induction intensity of a magnetic field emitted by a magnetic field emitting apparatus only when the organic light-emitting diode senses the magnetic field; and a first processing subcircuit configured to determine a position of an electromagnetic touch according to the driving current of each of the organic light-emitting diodes, and the obtained detection current thereof.
Public/Granted literature
- US20210234078A1 APPARATUS FOR DETECTING ELECTROMAGNETIC TOUCH Public/Granted day:2021-07-29
Information query
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