公开(公告)号：US12267922B2

公开(公告)日：2025-04-01

申请号：US18195028

申请日：2023-05-09

Applicant: Sharp Display Technology Corporation

Inventor： Hidekazu Miyata

IPC: H05B45/30 ,  G02F1/1335 ,  G02F1/13357 ,  H01L25/075 ,  H05B45/10 ,  H05B45/46

Abstract: An anode line control circuit provided corresponding to each of anode lines includes a first resistor connected to a control terminal of a first switching element, which controls the supply of a power supply voltage to the anode line, and a second switching element connected to a second resistor connected to one end of the anode line. When the first switching element changes from an OFF state to an ON state, the second switching elements corresponding to the anode lines other than the anode line connected to the first switching element are maintained in the OFF state.

公开(公告)号：US11475852B1

公开(公告)日：2022-10-18

申请号：US17684781

申请日：2022-03-02

Applicant: Sharp Display Technology Corporation

Inventor： Hidekazu Miyata

IPC: G09G3/3291 ,  G09G3/00

Abstract: A light-emitting device is provided with a drive voltage adjustment circuit configured to adjust a voltage value of a drive voltage for driving a plurality of LEDs, and a feedback wiring line for supplying the drive voltage adjustment circuit with a voltage of a voltage detection target node while taking, as the voltage detection target node, a position before a position where a drive voltage wiring line branches on the LED substrate. In accordance with a difference between a voltage supplied from a drive voltage generation circuit and a voltage supplied from the feedback wiring line, the drive voltage adjustment circuit outputs, as the drive voltage, a voltage higher than the voltage supplied from the drive voltage generation circuit.