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公开(公告)号：US11929032B2
公开(公告)日：2024-03-12
申请号：US17887973
申请日：2022-08-15
发明人： Hyun Dae Lee , Il Nam Kim , Seung Hyun Moon , Dong Wook Yang , Kang Bin Jo , Go Eun Cha
IPC分类号： G06V40/13 , G09G3/3266
CPC分类号： G09G3/3266 , G06V40/1318 , G09G2300/0828 , G09G2310/0294 , G09G2310/061 , G09G2310/08 , G09G2360/14
摘要： A display device comprises a display panel which comprises scan lines, sensing lines, pixels electrically connected to each of the scan lines, and photo sensors electrically to each of the scan lines and the sensing lines, a scan driver which outputs scan signals to the scan lines according to a scan control signal, a timing controller which outputs the scan control signal to the scan driver, and a readout circuit which receives light sensing signals of the photo sensors from the sensing lines. The timing controller sets a frame frequency of the scan control signal to a first frame frequency in a first mode in which the display panel displays an image. The timing controller sets the frame frequency of the scan control signal to a second frame frequency in a second mode in which the photo sensors sense a fingerprint.
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公开(公告)号：US11783620B2
公开(公告)日：2023-10-10
申请号：US17662901
申请日：2022-05-11
发明人： Jong Hyun Lee , Il Nam Kim , Kang Bin Jo , Dong Wook Yang
IPC分类号： G09G3/3233 , G06V40/13 , G09G3/3208
CPC分类号： G06V40/1318 , G09G3/3208 , G09G2300/0842 , G09G2310/061 , G09G2310/08
摘要： A display device includes light emitting and receiving pixels, a reset line, a fingerprint scan line, a fingerprint sensing line, and first and second voltage lines in a display region. Each light receiving pixel includes a light receiving element including a first electrode and a second electrode connected to the second voltage line, a sensing transistor connecting the first electrode to the fingerprint sensing line according to a fingerprint scan signal applied to the fingerprint scan line and a reset transistor to connect the first voltage line to the first electrode according to a reset signal applied to the reset line. A first voltage applied to the first voltage line is greater than a second voltage applied to the second voltage line, and a third voltage applied to the fingerprint sensing line is greater than the second voltage and smaller than the first voltage.
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公开(公告)号：US11741739B2
公开(公告)日：2023-08-29
申请号：US16589416
申请日：2019-10-01
发明人： Eun Jin Sung , Ji Hun Ryu , Yun Ho Kim , Il Nam Kim , Won Sang Park , Jong In Baek , Katsumasa Yoshii
IPC分类号： G06V40/13 , H01L31/12 , H01L27/146 , G09G3/3233 , H10K59/40 , H10K59/60 , H10K59/65 , H10K59/121
CPC分类号： G06V40/1318 , G09G3/3233 , H01L27/14605 , H01L31/12 , H10K59/1216 , H10K59/40 , H10K59/60 , H10K59/65 , G09G2300/0426 , G09G2300/0842 , G09G2354/00
摘要： A display device may include: a first substrate including pixel areas; a circuit element layer disposed on a first surface of the first substrate, and including at least one conductive layer; a light emitting element layer disposed on the circuit element layer; pixels each including a circuit element and a light emitting element disposed on the circuit element layer and the light emitting element layer in a corresponding one of the pixel areas; a first light transmitting hole array layer including first light transmitting holes distributed in the circuit element layer; and a photo sensor array layer disposed on a second surface of the first substrate and configured to overlap with the first light transmitting hole array layer, the photo sensor array layer comprising photo sensors. The first light transmitting holes may include openings distributed in the at least one conductive layer.
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公开(公告)号：US11690263B2
公开(公告)日：2023-06-27
申请号：US17028915
申请日：2020-09-22
发明人： Ji Hun Ryu , Il Nam Kim , Won Sang Park , Eun Jin Sung , Seong Ryong Lee , Jong Hyun Lee
IPC分类号： H10K59/131 , H04M1/02 , H10K50/86 , H10K59/60
CPC分类号： H10K59/131 , H04M1/0266 , H04M1/0268 , H10K50/865 , H10K59/60
摘要： A display device including a substrate; a display element layer on the substrate, the display element layer including light emitting devices; a circuit element layer between the substrate and the display element layer, the circuit element layer including signal lines and light transmitting areas which are located between the signal lines in a plan view and allow light to be transmitted therethrough; a first light blocking layer between the substrate and the circuit element layer, the first light blocking layer including first openings; and a second light blocking layer on the first light blocking layer, the second light blocking layer including second openings. The second light blocking layer includes second sub-light blocking layers disposed to be spaced apart from each other, the second sub-light blocking layers each having the second openings. The first openings of the first light blocking layer overlaps with an area between the second sub-light blocking layers.
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5.发明授权公开(公告)号：US11170090B2
公开(公告)日：2021-11-09
申请号：US16997871
申请日：2020-08-19
发明人： Won Sang Park , Jin Oh Kwag , Il Nam Kim , Ji Hun Ryu , Seung Hyun Moon , Bong Hyun You , Jong Hyun Lee , Hee Chul Hwang
摘要： A display device includes a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.
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公开(公告)号：US10572085B2
公开(公告)日：2020-02-25
申请号：US16004447
申请日：2018-06-11
发明人： Keum Dong Jung , Ki Seo Kim , Il Nam Kim , Kyung Tea Park , Yun Ho Kim , Jae Kyoung Kim , Won Sang Park , Jong In Baek
摘要： A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.
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公开(公告)号：US10096287B2
公开(公告)日：2018-10-09
申请号：US15157575
申请日：2016-05-18
发明人： Eun Jin Sung , Jong In Baek , Ji Young Moon , Il Nam Kim , Won Sang Park , Byeong Hee Won
IPC分类号： G09G5/10 , G09G3/3275
摘要： A display device includes a display panel including a plurality of pixels, an illuminance sensor to measure illuminance, and a display controller which includes a processor a brightness controllers. The processor calculates an external illuminance value with reference to a signal from the illuminance sensor. The brightness controller turns off at least one of the pixels and controls the brightness of the display panel when the calculated external illuminance value is in a first region. The first region may be, for example, in a mesopic region.
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公开(公告)号：US12067803B2
公开(公告)日：2024-08-20
申请号：US18177968
申请日：2023-03-03
发明人： Soo Jung Lee , Keum Dong Jung , Yu Na Kim , Il Nam Kim
CPC分类号： G06V40/1318 , G06V40/1306 , G06V10/751
摘要： There are provided a fingerprint sensor and a display device including the same. The fingerprint sensor includes a base substrate in which a first sensing region and a second sensing region are defined on a plane, first photo sensors disposed on the first sensing region of the base substrate, and second photo sensors disposed on the second sensing region of the base substrate. The first sensing region has an area larger than that of the second sensing region, and the first photo sensor has a width wider than that of the second photo sensor.
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公开(公告)号：US11700752B2
公开(公告)日：2023-07-11
申请号：US17929535
申请日：2022-09-02
发明人： Sun Hwa Lee , Mu Kyung Jeon , Il Nam Kim , Ji Hun Ryu , Ki Hyun Pyo
IPC分类号： H01L33/48 , H10K59/126 , H01L25/18 , G09G3/3258 , G09G3/3233 , G06F3/041 , G06V40/13 , H10K59/131 , G06F3/044 , H10K59/35
CPC分类号： H10K59/126 , G06F3/0412 , G06V40/1318 , G09G3/3233 , G09G3/3258 , H01L25/18 , H10K59/131 , G06F3/0443 , G06F3/0446 , G09G2310/0202 , G09G2360/14 , H10K59/353
摘要： Embodiments of the present disclosure provide a display device comprising: a substrate; a thin film transistor layer on a first surface of the substrate and including a first hole; a light emitting element layer on the thin film transistor layer and including a light emitting element; a first light blocking layer between the substrate and the thin film transistor layer and including a second hole overlapping the first hole in a thickness direction of the substrate; and a second light blocking layer between the thin film transistor layer and the light emitting element layer and including a third hole overlapping the first hole and the second hole in the thickness direction of the substrate.
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公开(公告)号：US11620847B2
公开(公告)日：2023-04-04
申请号：US17370206
申请日：2021-07-08
发明人： Keum Dong Jung , Il Nam Kim , Kyung Tea Park , Jin Oh Kwag , Won Sang Park , Sung Chan Jo
摘要： A fingerprint recognition device including: a sensing panel including a plurality of sensing blocks, wherein each of the sensing blocks includes a plurality of sensors; a scan driving unit configured to provide a scan signal to the sensors; and a timing controller configured to provide a second initiation signal to the scan driving unit, wherein each of the sensors includes a reference capacitor and a sensing capacitor, the scan driving unit includes scan drivers that correspond to rows of the sensing blocks, in a fingerprint recognition mode, the timing controller provides the second initiation signal to a scan driver corresponding to a sensing block where a touch input is generated, and in a touch mode, the timing controller sequentially provides the second initiation signal to the scan drivers.
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