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1.发明申请公开(公告)号：US20230030916A1
公开(公告)日：2023-02-02
申请号：US17962669
申请日：2022-10-10
Applicant: Samsung Display Co., Ltd.
Inventor： JUNSEONG LEE , BOGEUN YUK , MIN-HONG KIM , TAEJOON KIM , EUNGKWAN LEE , HYUN-WOOK CHO
Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.
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公开(公告)号：US20230176676A1
公开(公告)日：2023-06-08
申请号：US18053509
申请日：2022-11-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： EUNGKWAN LEE , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , JEONGHEON LEE
CPC classification number: G06F3/0416 , G06F3/0446
Abstract: An electronic device includes a display layer, a sensor layer, and a sensor driver that receives a sensitivity value from a node defined in an area where one electrode intersects one cross electrode, and calculates an input coordinate based on the sensitivity value. When the sensitivity value received from the node is equal to or greater than a first threshold value, the sensor driver calculates the input coordinate based on the sensitivity value. When each of a plurality of sensitivity values received from the node and a plurality of peripheral nodes adjacent to the node is less than the first threshold value and greater than or equal to a second threshold value, the sensor driver calculates the input coordinate based on the plurality of sensitivity values.
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公开(公告)号：US20240053392A1
公开(公告)日：2024-02-15
申请号：US18340678
申请日：2023-06-23
Applicant: Samsung Display Co., Ltd.
Inventor： EUNSOL SEO , HYUN-WOOK CHO , SANGKOOK KIM , TAEJOON KIM , EUNGKWAN LEE , JAEWOO CHOI
CPC classification number: G01R27/2605 , G06F3/04166 , G06F3/0446 , G06F3/0443
Abstract: In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.
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4.发明申请公开(公告)号：US20220107703A1
公开(公告)日：2022-04-07
申请号：US17477967
申请日：2021-09-17
Applicant: Samsung Display Co., Ltd.
Inventor： JUNSEONG LEE , BOGEUN YUK , MIN-HONG KIM , TAEJOON KIM , EUNGKWAN LEE , HYUN-WOOK CHO
Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.
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