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公开(公告)号：US20230116395A1
公开(公告)日：2023-04-13
申请号：US18057425
申请日：2022-11-21
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Jeong Heon LEE , Young Sik KIM , Jung Hak KIM , Kyo Won KU , Hee Yeon CHOI
Abstract: A fingerprint sensor includes a substrate, a sensor pixel disposed on the substrate and including a light sensing element through which a sensing current flows according to an amount of incident light, a light-blocking conductive layer disposed on the sensor pixel and including a plurality of holes, a first fingerprint pad disposed on the substrate, and a conductive connector connected to the first fingerprint pad and to which a predetermined voltage is applied. The light-blocking conductive layer is electrically connected to the conductive connector.
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公开(公告)号：US20210397862A1
公开(公告)日：2021-12-23
申请号：US17224421
申请日：2021-04-07
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Soon Gyu LEE , Jin Woo KIM , Jin A KANG , Young Sik KIM
Abstract: A method for driving a display device is performed by the display device. The method includes: displaying a first image including user convenience information through a display panel; generating sensing data corresponding to a fingerprint sensing area by using a photoelectric sensor; and determining whether a sensed fingerprint corresponding to the sensing data is a fake fingerprint by comparing expected sensing light illuminance information based on the first image with sensed light illuminance information of the sensing data. The first image includes a first color pattern in the fingerprint sensing area of the display panel. A fake-determination image pattern includes the first color pattern and a second color pattern different from the first color pattern.
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公开(公告)号：US20200064968A1
公开(公告)日：2020-02-27
申请号：US16482238
申请日：2019-01-30
Applicant: Samsung Display Co., Ltd.
Inventor： Chang Bum KIM , Hyung Chul KIM , Jung Mok PARK , Young Sik KIM , Young Seok YOO
Abstract: A display device is provided. The display device includes a display unit which includes a display area and a first hole formed in the display area; and an input sensing unit which is disposed on the display unit and comprises a second hole corresponding to the first hole, the input sensing unit further including: a base layer which includes: an adjacent area disposed adjacent to the second hole and a sensing area overlapping the display area and surrounding the adjacent area; detection electrodes which are disposed on the sensing area; and a first connection wiring which is disposed on the adjacent area, the first connection wire electrically connecting at least two detection electrodes spaced apart by the second hole, disposed at respective sides of the second hole.
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公开(公告)号：US20190332216A1
公开(公告)日：2019-10-31
申请号：US16505199
申请日：2019-07-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Kang Won LEE , Byeong Kyu JEON , Jeong Heon LEE , Young Sik KIM
Abstract: A display device includes a display panel including a plurality of pixels, a touch sensor unit provided on the display panel, and including a touch sensing area in which a touch sensor is provided and a non-sensing area around the touch sensing area, and a polarizer provided on the touch sensor unit and bonded to the touch sensor unit, an edge side of the polarizer and an edge side of the touch sensor unit being aligned.
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公开(公告)号：US20190302962A1
公开(公告)日：2019-10-03
申请号：US16446717
申请日：2019-06-20
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Sang Hyun LIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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Patent Agency Ranking
公开(公告)号：US20190102017A1
公开(公告)日：2019-04-04
申请号：US16110226
申请日：2018-08-23
Applicant: Samsung Display Co., Ltd.
Inventor： Jung Hak KIM , Do Ik KIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
Abstract: A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.
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公开(公告)号：US20180321793A1
公开(公告)日：2018-11-08
申请号：US15914281
申请日：2018-03-07
Applicant: Samsung Display Co., Ltd.
Inventor： Do Ik KIM , Sang Hyun LIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04111
Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.
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公开(公告)号：US20250013327A1
公开(公告)日：2025-01-09
申请号：US18893943
申请日：2024-09-23
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Do Ik KIM , Ga Young KIM , Sang Hyun LIM , Young Sik KIM , Sang Chul LEE , Hwan Hee JEONG
IPC: G06F3/041 , G06F3/044 , G06F3/047 , G09G3/3208 , H10K59/40
Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.
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公开(公告)号：US20230326228A1
公开(公告)日：2023-10-12
申请号：US18132262
申请日：2023-04-07
Applicant: Samsung Display Co., Ltd.
Inventor： Kee Yong KIM , Jung Hun SIN , Young Sik KIM , Tae Joon KIM , Hee Woong PARK , Sang Wook YOO
CPC classification number: G06V40/13 , G06V40/1347 , G06V40/1365
Abstract: Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.
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公开(公告)号：US20220229517A1
公开(公告)日：2022-07-21
申请号：US17713085
申请日：2022-04-04
Applicant: Samsung Display Co, Ltd.
Inventor： Do Ik KIM , Ga Young KIM , Young Sik KIM , Sang Chul LEE
Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.
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