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    Display device and driving method of the same
    13.
    发明授权
    Display device and driving method of the same 有权

    公开(公告)号：US11455958B2

    公开(公告)日：2022-09-27

    申请号：US17347468

    申请日：2021-06-14

    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.

    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE SAME
    14.
    发明申请
    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220122513A1

    公开(公告)日：2022-04-21

    申请号：US17471997

    申请日：2021-09-10

    Applicant: SAMSUNG DISPLAY CO., LTD. ,  Korea University Research and Business Foundation

    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

    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.

    Display device
    15.
    发明授权
    Display device 有权

    公开(公告)号：US11275463B2

    公开(公告)日：2022-03-15

    申请号：US17009379

    申请日：2020-09-01

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae-Kyoung Kim ,  Ki Seo Kim ,  Eun Jin Sung ,  Bong Hyun You ,  Won Sang Park

    IPC: G06F3/041 ,  H01L27/32 ,  H01L51/52 ,  H01Q1/36 ,  H01Q1/14 ,  H01Q21/00 ,  H01Q21/06 ,  G06F1/16 ,  H01Q1/22

    Abstract: A display device includes: a base substrate including a touch area and a non-touch area adjacent to the touch area and including a first area and a second area; a touch electrode disposed in the touch area and including a lattice pattern; an antenna electrode disposed in the first area and including a lattice pattern; a first dummy pattern disposed in the first area; and a second dummy pattern disposed in the second area, wherein the second area is disposed between the first area and the touch area, and the lattice pattern of the touch electrode includes openings that are larger than openings of the lattice pattern of the antenna electrode.

    DISPLAY DEVICE INCLUDING FINGERPRINT SENSOR AND FINGERPRINT AUTHENTICATION METHOD THEREOF
    17.
    发明申请
    DISPLAY DEVICE INCLUDING FINGERPRINT SENSOR AND FINGERPRINT AUTHENTICATION METHOD THEREOF 有权

    公开(公告)号：US20210055826A1

    公开(公告)日：2021-02-25

    申请号：US16997871

    申请日：2020-08-19

    Applicant: Samsung Display Co., LTD.

    Inventor： Won Sang PARK ,  Jin Oh Kwag ,  II Nam Kim ,  Ji Hun Ryu ,  Seung Hyun Moon ,  Bong Hyun You ,  Jong Hyun Lee ,  Hee Chul Hwang

    IPC: G06F3/042 ,  G06K9/00 ,  G06F21/32

    Abstract: 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.

    Display device including light-blocking layer and sensor layer
    19.
    发明授权
    Display device including light-blocking layer and sensor layer 有权

    公开(公告)号：US12238982B2

    公开(公告)日：2025-02-25

    申请号：US16892682

    申请日：2020-06-04

    Applicant: Samsung Display Co., LTD.

    Inventor： Eun Jin Sung ,  Seong Ryong Lee ,  Jae Kyoung Kim ,  Won Sang Park ,  Jong In Baek ,  Bong Hyun You

    IPC: H10K59/131 ,  H10K50/86 ,  H10K59/60

    Abstract: A display device includes: a substrate including a display area having a plurality of pixel areas and a non-display area surrounding at least one side of the display area; a light-blocking layer disposed on a first surface of the substrate and including light transmissive areas to allow incident light to pass therethrough; a circuit-element layer disposed on the light-blocking layer and including a plurality of conductive layers; a light-emitting element layer disposed on the circuit-element layer and including light-emitting elements; and a sensor layer disposed on a second surface of the substrate opposing the first surface to sense the light passing through the light transmissive areas. The light-blocking layer is electrically coupled to at least one of the plurality of conductive layers.

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