Touch display apparatus with light guide plate using infrared light for touch detection

    公开(公告)号:US12159009B2

    公开(公告)日:2024-12-03

    申请号:US17713733

    申请日:2022-04-05

    Abstract: A touch display apparatus is provided. The touch display apparatus includes a display panel including a display surface, a light guide plate disposed over the display surface of the display panel and formed to emit light incident into one side surface of the light guide plate through an upper surface of the light guide plate, a first light source array disposed on one side of the light guide plate and including a plurality of infrared light sources configured to emit infrared rays to an one side surface of the light guide plate, a camera disposed on at least one side of the first light source array and configured to photograph infrared rays emitted through an entire area of the upper surface of the light guide plate, and a processor configured to recognize coordinates of an input object adjacent to the upper surface of the light guide plate using infrared rays images captured by the camera.

    Memory devices having variable repair units therein and methods of repairing same

    公开(公告)号:US11527303B2

    公开(公告)日:2022-12-13

    申请号:US16890559

    申请日:2020-06-02

    Abstract: A memory device includes a row decoder, a column decoder, and a repair control circuit, which is configured to: (i) compare a row address with a stored failed row address, (ii) compare a column address with a stored failed column address, (iii) control the row decoder to activate the at least one of a plurality of redundancy word lines when the row address corresponds to the failed row address, and (iv) control the column decoder to activate at least one of a plurality of redundancy bit lines when the column address corresponds to the failed column address. The repair control circuit varies a repair unit according to an address input during a repair operation.

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