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AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsSatoshi Yoshimoto, Kazunori Watanabe, Susumu Kawashima, Ryo Yamauchi, Motoharu Saito, Koji Kusunoki, Shunpei Yamazaki
Estimating the term…
A display apparatus capable of performing authentication in a short time is provided. The display apparatus includes a first display portion where first pixels are arranged in a matrix, a second display portion where second pixels are arranged in a matrix, first and second row driver circuits, and a control circuit. Each of the first and the second pixels includes a light-receiving element. The first and the second pixels each have a function of acquiring imaging data by using the light-receiving element. The first and the second row driver circuits each have a function of selecting the first and the second pixels which read out the imaging data. The control circuit has a function of sequentially driving the first and the second row driver circuits in a first mode, and has a function of driving one of the first and the second row driver circuits on the basis of the imaging data in the second mode. Each of the scan rates of the first and the second row driver circuits in the first mode is higher than the scan rate of the first or the second row driver circuit in the second mode.
A display apparatus comprising:
A method of driving a display apparatus comprising a first display portion and a second display portion in each of which pixels each comprising a light-receiving element are arranged in a matrix, comprising the steps of:
Dependencies are inferred from the claim text.