FINGERPRINT SENSOR DEVICE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD FOR DRIVING THE DISPLAY DEVICE

    公开(公告)号:US20220317852A1

    公开(公告)日:2022-10-06

    申请号:US17453936

    申请日:2021-11-08

    IPC分类号: G06F3/041 G06F3/044 G06V40/13

    摘要: A display device includes a display panel including a plurality of touch electrodes, a touch driving circuit electrically connected to the plurality of touch electrodes, and a fingerprint sensor device disposed on one surface of the display panel and including a plurality of unit blocks. The fingerprint sensor device includes a plurality of fingerprint scan lines extending in a first direction, a plurality of fingerprint sensing lines extending in a second direction crossing the first direction, a plurality of sensor pixels respectively connected to the plurality of fingerprint scan lines and the plurality of fingerprint sensing lines, and a fingerprint scan driver having a plurality of stages for applying a fingerprint scan signal to each of the plurality of fingerprint scan lines. The touch driving circuit applies a start signal to the fingerprint scan driver.

    FINGERPRINT SENSOR DEVICE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD FOR DRIVING THE DISPLAY DEVICE

    公开(公告)号:US20240103663A1

    公开(公告)日:2024-03-28

    申请号:US18519833

    申请日:2023-11-27

    IPC分类号: G06F3/041 G06F3/044 G06V40/13

    摘要: A display device includes a display panel including a plurality of touch electrodes, a touch driving circuit electrically connected to the plurality of touch electrodes, and a fingerprint sensor device disposed on one surface of the display panel and including a plurality of unit blocks. The fingerprint sensor device includes a plurality of fingerprint scan lines extending in a first direction, a plurality of fingerprint sensing lines extending in a second direction crossing the first direction, a plurality of sensor pixels respectively connected to the plurality of fingerprint scan lines and the plurality of fingerprint sensing lines, and a fingerprint scan driver having a plurality of stages for applying a fingerprint scan signal to each of the plurality of fingerprint scan lines. The touch driving circuit applies a start signal to the fingerprint scan driver.

    DEVICE AND METHOD FOR COMPENSATING FOR STAINS CAUSED BY DETERIORATION OF A DISPLAY DEVICE

    公开(公告)号:US20220139278A1

    公开(公告)日:2022-05-05

    申请号:US17493169

    申请日:2021-10-04

    IPC分类号: G09G3/00 G06K9/00 G09G3/20

    摘要: A method of compensating for stains caused by deterioration of a display device, the display device including an illuminance sensor and a display panel including pixels and an optical fingerprint sensor, the method including determining, while in a test mode of the display device and via the illuminance sensor, whether an illuminance is a reference value or less, emitting, While in the test mode of the display device, first color light from the display panel when the illuminance is the reference value or less, and acquiring, while in the test mode of the display device, afterimage compensation data relating to amounts of deterioration of the pixels by receiving the first color light through an optical fingerprint sensor.

    DISPLAY DEVICE INCLUDING LIGHT RECEIVING ELEMENTS AND METHOD OF OPERATING THE SAME

    公开(公告)号:US20240290132A1

    公开(公告)日:2024-08-29

    申请号:US18523607

    申请日:2023-11-29

    IPC分类号: G06V40/13

    CPC分类号: G06V40/1318

    摘要: A display device includes: a base; light emitting element groups on one surface of the base, and each including a plurality of light emitting elements arranged in a first direction; and light receiving element groups on the one surface of the base, and each including a plurality of light receiving elements arranged in the first direction, wherein the light emitting element groups are arranged in a second direction, wherein the light receiving element groups are adjacent and parallel to the light emitting element groups, and wherein, based on a first light emitting element group among the light emitting element groups emitting light, first sensing data is obtained, without emission of a second light emitting element group arranged in the second direction from the first light emitting element group, by using at least one first light receiving element group adjacent to the second light emitting element group.

    DISPLAY DEVICE
    7.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号:US20240233435A9

    公开(公告)日:2024-07-11

    申请号:US18374547

    申请日:2023-09-28

    IPC分类号: G06V40/13 G06F1/16 G06V40/12

    摘要: A display device comprises a display panel comprising an image display area and a non-display area, display pixels comprising light-emitting elements in the image display area and pixel driving units connected to the light-emitting elements, light-sensing pixels comprising photo-detecting units in a fingerprint sensing area in the image display area, and sense driving units connected to the photo-detecting units, a light-sensing reset driver configured to supply reset signals to the sense driving units of the light-sensing pixels for at least each horizontal line among the light-sensing pixels in response to a line select signal from a display driving circuit; and a fingerprint scan driver configured to sequentially supply a fingerprint scan signal to the sense driving units of the light-sensing pixels in response to a fingerprint scan control signal from the display driving circuit.

    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    9.
    发明公开

    公开(公告)号:US20240161684A1

    公开(公告)日:2024-05-16

    申请号:US18387807

    申请日:2023-11-07

    IPC分类号: G09G3/32

    摘要: A display device includes: a display panel; an emission driver; a scan driver; and a timing controller. The display panel includes light emitting pixels and photosensitive pixels, where the photosensitive pixels are operated in an initialization period, a light exposure period and a sensing period. The emission driver supplies emission control signals to emission control lines connected to the light emitting pixels, based on an emission start signal. The scan driver supplies scan signals to scan lines connected to the light emitting pixels and the photosensitive pixels, based on a scan start signal. The timing controller generates the emission start signal having a single pulse of a gate-off level and the scan start signal having a single pulse of a gate-on level in a last frame period among frame periods corresponding to the light exposure period and in each of frame periods corresponding to the sensing period.