US 12,016,236 B2
Display module and electronic device
Kei Takahashi, Kanagawa (JP); and Hidetomo Kobayashi, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Appl. No. 17/439,880
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
PCT Filed Sep. 23, 2020, PCT No. PCT/IB2020/058859
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2021/064518, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-183999 (JP), filed on Oct. 4, 2019.
Prior Publication US 2022/0352265 A1, Nov. 3, 2022
Int. Cl. H01L 23/00 (2006.01); G06F 1/16 (2006.01); H10K 59/35 (2023.01); H10K 59/60 (2023.01); H10K 77/10 (2023.01); G06V 40/13 (2022.01)
CPC H10K 59/60 (2023.02) [G06F 1/1652 (2013.01); G06F 1/1684 (2013.01); H10K 59/351 (2023.02); H10K 77/111 (2023.02); G06V 40/1318 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A display module comprising a display apparatus and a reading circuit,
wherein the display apparatus comprises a first pixel and a second pixel adjacent to each other,
wherein each of the first pixel and the second pixel comprises a light-receiving element,
wherein the reading circuit comprises a differential input circuit,
wherein a ramp signal and a first potential are supplied to the reading circuit,
wherein the differential input circuit is controlled so that a first current and a second current have the same current value,
wherein the first current is generated using a first light-receiving signal and the ramp signal, and
wherein the second current is generated using a second light-receiving signal and the first potential.