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公开(公告)号：US11705046B2
公开(公告)日：2023-07-18
申请号：US17471997
申请日：2021-09-10
Inventor： Young Soo Hwang , Joon Chul Goh , Oh Jo Kwon , Ki Duk Kim , Jeong Min Kim , Bong Hyun You , Hyung Min Lee , Seung Hun Choi
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/027 , G09G2310/0291 , G09G2310/0294 , G09G2310/08
Abstract: A data driver includes a multi-channel sample/hold circuit electrically connected between a digital-to-analog converter and a data buffer. The multi-channel sample/hold circuit includes a first sample/hold circuit connected to a first channel and a second sample/hold circuit connected to a second channel. The first sample/hold circuit performs a first drive operation and a second drive operation. The first drive operation includes sampling a data voltage as a buffer input voltage and maintaining the buffer input voltage during an nth horizontal time. The second drive operation includes outputting the buffer input voltage to an output terminal of the buffer during an (n+1)th horizontal time. The second sample/hold circuit performs the second drive operation during the nth horizontal time and performs the first drive operation during the (n+1)th horizontal time.
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公开(公告)号：US11615737B2
公开(公告)日：2023-03-28
申请号：US17447792
申请日：2021-09-15
Applicant: Samsung Display Co., Ltd.
Inventor： Yu Choi Kim , Joon Chui Goh , Jin Wook Yang , Bong Hyun You
IPC: G09G3/32
Abstract: A display device includes pixels, and first, second, and third gate lines and data lines connected to the pixels. At least one of the pixels includes a light emitting element, a first transistor connected between a first power source and the light emitting element for driving the light emitting element according to a voltage of a first node, a second transistor connected between the first node and a corresponding data line, and driven according to a voltage of a corresponding first gate line, a capacitor connected between the first node and a second node between the first transistor and the light emitting element, a third transistor between the second node and an initialization power line, and driven according to a voltage of a corresponding second gate line, and a fourth transistor connected between the first and second nodes, and driven according to a voltage of a corresponding third gate line.
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23.发明授权公开(公告)号：US11568036B2
公开(公告)日：2023-01-31
申请号：US17520699
申请日：2021-11-07
Applicant: Samsung Display Co., Ltd.
Inventor： Won Sang Park , Jin Oh Kwag , Il Nam Kim , Ji Hun Ryu , Seung Hyun Moon , Bong Hyun You , Jong Hyun Lee , Hee Chul Hwang
Abstract: A display device including 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 a 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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24.发明授权公开(公告)号：US11488537B2
公开(公告)日：2022-11-01
申请号：US17182825
申请日：2021-02-23
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Se Hyuk Park , Hong Soo Kim , Jin Young Roh , Bong Hyun You , Hyo Jin Lee , Jae Keun Lim
IPC: G09G3/3266
Abstract: A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.
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公开(公告)号：US11469292B2
公开(公告)日：2022-10-11
申请号：US17363283
申请日：2021-06-30
Applicant: Samsung Display Co., Ltd.
Inventor： Woo Suk Seo , Sang Woo Ha , Sung Chul Kim , Jung Hyun Kim , Si Joon Song , Jun Ho Song , Bong Hyun You
Abstract: A display device includes: a first substrate in which a display area and a non-display area disposed outside the display area are defined; a second substrate facing the first substrate; and a cell seal disposed on the non-display area, where the cell seal includes a bonding filament connecting the first substrate and the second substrate to each other.
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Patent Agency Ranking
公开(公告)号：US11423691B2
公开(公告)日：2022-08-23
申请号：US16927622
申请日：2020-07-13
Applicant: Samsung Display Co., Ltd.
Inventor： Seung Hyun Moon , Yun Ho Kim , Jin Oh Kwag , Won Sang Park , Bong Hyun You , Keum Dong Jung , Chui Kim , Jun Hee Moon , Deok Hwa Woo , Hee Chui Hwang
Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.
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公开(公告)号：US11271582B2
公开(公告)日：2022-03-08
申请号：US17168448
申请日：2021-02-05
Inventor： Seong Joo Lee , Oh Jo Kwon , Gyeong Gu Kang , Seok Tae Koh , Joon Chul Goh , Hyun Sik Kim , Bong Hyun You
Abstract: A digital-to-analog converter (“DAC”) converts digital image data into analog image signals. The DAC includes a stage outputting different voltages to a first output terminal and a second output terminal based on a voltage supplied to a first input terminal, a voltage supplied to a second input terminal, and a first input bit. The stage includes a switch circuit including switches that are alternately turned on by a control signal, and outputting an intermediate output voltage to a third output terminal based on a first input voltage supplied to the first input terminal and a second input voltage supplied to the second input terminal, and a selector outputting one of the first input voltage and the second input voltage, and the intermediate output voltage.
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公开(公告)号：US11037507B2
公开(公告)日：2021-06-15
申请号：US16721564
申请日：2019-12-19
Applicant: Samsung Display Co., Ltd.
Inventor： Sehyuk Park , Hyojin Lee , Hui Nam , Jinyoung Roh , Bong Hyun You , Eunho Lee
IPC: G09G3/3275
Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.
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公开(公告)号：US10025414B2
公开(公告)日：2018-07-17
申请号：US14847546
申请日：2015-09-08
Applicant: Samsung Display Co., Ltd.
Inventor： Dong-Won Park , Bong Hyun You , Nam-Gon Choi , Seok Ha Hong , Jung-Won Kim , Dong Gyu Lee , Jae Hyun Cho , Jae Hyung Cho
Abstract: A tiled display device includes a first display device including a first display panel configured to sense a touch thereon and display an image signal, and a first controller configured to control the first display panel and transmit a reference signal wirelessly, and a second display device including a second display panel configured to sense a touch thereon and display the image signal, and a second controller configured to control the second display panel and transmit a first ACK signal to the first controller after receiving the reference signal, in which the first controller is configured to determine a first latency time of the second display device by using the reference signal and the first ACK signal and synchronize touch information of the first and second display devices according to the first latency time.
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公开(公告)号：US09811301B2
公开(公告)日：2017-11-07
申请号：US14628172
申请日：2015-02-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Nam-Gon Choi , Gi Geun Kim , Hong Soo Kim , Geun Jeong Park , Ho Seok Son , Dong Gyu Lee , Dong-Won Park , Cheol Woo Park , Yun Ki Baek , Bong Hyun You
CPC classification number: G06F3/1407 , G06F3/0416 , G06T11/60 , G09G5/36 , G09G2340/12
Abstract: An apparatus includes an overlay buffer configured to store overlay data; a touch path logic to: receive first touch events from the first touch sensor panel and generate a first output based on the first touch events, and receive second touch events from the second touch sensor panel and generate a second output based on the second touch events; and a rendering logic to, when the first touch events occur: receive a first video image; receive the first output; and combine the first video image with the overlay data corresponding to the first video image to output at least one combined display image, and, when the second touch events occur: receive a second video image; receive the second output; and combine the second video image with the overlay data corresponding to the second video image to output the at least one combined display image.
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