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公开(公告)号：US11467692B2
公开(公告)日：2022-10-11
申请号：US17249726
申请日：2021-03-10
Applicant: Samsung Display Co., Ltd.
Inventor： Yun-Ho Kim , Chul Kim , Jaeuk Choi
Abstract: An electronic device includes: a display layer; a display driver configured to generate a horizontal synchronization signal and a vertical synchronization signal for driving the display layer; a sensor layer on the display layer; and a sensor driver configured to receive the horizontal synchronization signal and the vertical synchronization signal from the display driver, and to operate, based on the horizontal synchronization signal and the vertical synchronization signal, in a first mode in which a first input generated by an active pen is detected or a second mode in which a second input generated by a touch is detected.
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公开(公告)号：US11423684B2
公开(公告)日：2022-08-23
申请号：US16838689
申请日：2020-04-02
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Keumdong Jung , KyungTea Park , Sunhwa Lee , Mukyung Jeon , Sanghyun Heo
IPC: G06V40/13 , G06F3/041 , G06V10/141 , G06V40/12
Abstract: A display device relating to a method of operating thereof includes: a display panel having a touch sensing unit to sense an external touch and a display unit including a plurality of pixels; a fingerprint sensing panel to sense a fingerprint disposed on one surface of the display unit, the fingerprint sensing panel having a plurality of fingerprint sensing pixels respectively connected to a plurality of fingerprint scan lines and a plurality of fingerprint sensing lines, and a fingerprint scan driving circuit to drive one or more fingerprint scan lines included in a sensing area; and a read-out circuit to output a selection signal for selecting a sensing area of the fingerprint sensing panel.
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公开(公告)号：US20220087566A1
公开(公告)日：2022-03-24
申请号：US17357949
申请日：2021-06-24
Applicant: Samsung Display Co., Ltd.
Inventor： Seungwook Chun , Yuna Kim , Yun-Ho Kim , Chul Kim , Soojung Lee , Boram Choi
IPC: A61B5/0537 , G06F3/041
Abstract: A display device includes a display panel, an input sensor, and a readout circuit. The display panel is configured to display an image. The input sensor is disposed on the display panel, and includes transmission electrodes and reception electrodes electrically insulated from the transmission electrodes. The readout circuit is connected to the input sensor, and includes a first transmission/reception circuit, a second transmission/reception circuit, and a control circuit. The first transmission/reception circuit is electrically connected to the reception electrodes. The second transmission/reception circuit electrically is connected to the transmission electrodes. The control circuit configured to transmit a transmission signal to the input sensor through one of the first transmission/reception circuit and the second transmission/reception circuit, and to receive a reception signal from the input sensor through the other of the first transmission/reception circuit and the second transmission/reception circuit.
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公开(公告)号：US10191580B2
公开(公告)日：2019-01-29
申请号：US15179315
申请日：2016-06-10
Applicant: Samsung Display Co., Ltd.
Inventor： Kangwon Lee , Incheol Kim , Ung Choi , Won-Ki Hong , Seungho Nam , Jihong Park , Chul Kim , Hojin Byun , Kiseok Cha
Abstract: A display device includes a display panel and a touch panel. The touch panel calculates coordinate information of an input position by an electrostatic capacitive method in a first mode and calculates the coordinate information of the input position by an electromagnetic induction method in a second mode. The touch panel includes scan line groups and source line groups, which are operated as touch electrodes or touch coils on the basis of the operating mode thereof. In addition, the touch panel includes touch electrodes and touch coils, which are individually operated on the basis of the operating mode thereof.
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公开(公告)号：US12260840B2
公开(公告)日：2025-03-25
申请号：US18525591
申请日：2023-11-30
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim
Abstract: A display device includes: a display panel including: a plurality of pixels, each including a light emitting element; and a plurality of sensors, each including a light sensing element; a panel driving circuit to drive the plurality of pixels; a readout circuit to receive a sensing signal from the plurality of sensors; and a controller to control the panel driving circuit and the readout circuit. The controller is to: control the panel driving circuit to set a luminance of pixels in an emission area from among the plurality of pixels to a first luminance level in a fingerprint sensing mode; and control the panel driving circuit to set the luminance of the pixels in the emission area to a second luminance level in a blood pressure sensing mode, and the second luminance level is higher than the first luminance level.
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Patent Agency Ranking
公开(公告)号：US12249281B2
公开(公告)日：2025-03-11
申请号：US18187458
申请日：2023-03-21
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Chul Kim
Abstract: A display device includes display pixels arranged in a display area of a display panel, infrared light emitting pixels arranged in the display area to alternate with the display pixels, light sensing pixels arranged in the display area to alternate with the infrared light emitting pixels, a display scan driver supplying display scan signals to the display pixels and the infrared light emitting pixels, a light sensing driver sequentially supplying sensing scan signals to the light sensing pixels, and a component detection circuit for analyzing biomarker information using light sensing signals received from the light sensing pixels, which are based on light reflected from an object in front of the display panel.
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公开(公告)号：US11928280B2
公开(公告)日：2024-03-12
申请号：US17737141
申请日：2022-05-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jaeuk Choi , Yun-Ho Kim , Chul Kim
CPC classification number: G06F3/04164 , G06F3/0412 , G06F3/041662 , G06F3/0443 , G06F3/0446 , G06F2203/04111
Abstract: An electronic device includes a display panel, an input sensor disposed on the display panel and including a plurality of sensing electrodes and a plurality of sensing lines connected to the sensing electrodes, and a driving circuit that drives the input sensor and generates a control signal based on a type of input applied to the input sensor. The sensing lines include a first sensing line electrically connecting first ends of the sensing electrodes adjacent to each other among the sensing electrodes, and a second sensing line connecting at least one of second ends, which are opposite to the first ends, of the adjacent sensing electrodes to the driving circuit and selectively connecting other sensing electrodes to the driving circuit or a reference electric potential in response to the control signal.
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公开(公告)号：US20230397472A1
公开(公告)日：2023-12-07
申请号：US18451053
申请日：2023-08-16
Applicant: Samsung Display Co., Ltd.
Inventor： YUN HO KIM , Keum Dong Jung , Jin Oh Kwag , Won Sang Park , Deok Hwa Woo , Bong Hyun You , Chul Kim , Seung Hyun Moon , Jun Hee Moon , Hee Chul Hwang
CPC classification number: H10K59/65 , G06V40/1394 , G06V40/1318 , G06V40/1388 , H10K59/12 , H01L27/14678
Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.
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公开(公告)号：US20230297140A1
公开(公告)日：2023-09-21
申请号：US18070976
申请日：2022-11-29
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Yun-Ho Kim
IPC: G06F1/16 , G06F3/0354
CPC classification number: G06F1/1652 , G06F3/03545
Abstract: A pen analog front end includes an analog signal processing unit connected with an input sensor. The analog signal processing unit processes an analog input signal that the input sensor receives from an input device. An analog-to-digital converter converts the analog input signal into a first digital input signal. A digital signal processing unit synchronizes the first digital input signal and reference sync data preset to the input sensor and processes a position signal and a data signal of the input device.
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20.发明授权公开(公告)号：US11662836B2
公开(公告)日：2023-05-30
申请号：US17544280
申请日：2021-12-07
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Yun-Ho Kim
IPC: G06F3/0354 , G06F3/044 , H01L27/32
CPC classification number: G06F3/03545 , G06F3/0445 , H01L27/323 , H01L27/3244
Abstract: An electronic device includes a display layer, a sensor layer disposed on the display layer, and a lower member that is disposed under the display layer and includes a first shielding layer. The sensor layer operates in a first touch mode for sensing a first input based on a capacitance change and a second touch mode for sensing a second input of an input device that is configured to emit a magnetic field, and the first shielding layer shields the magnetic field that is transmitted through the sensor layer.
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