公开(公告)号：US11501691B2

公开(公告)日：2022-11-15

申请号：US16917740

申请日：2020-06-30

Applicant: Samsung Display Co., Ltd.

Inventor： Si Duk Sung ,  Sang Hyun Lee ,  Myeong Su Kim

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/36 ,  G09G3/296

Abstract: A display device may include a timing controller, a level shifter, a gate driver, and a display panel. The timing controller may generate a first on-clock signal, a first off-clock signal, and a first output control signal. The level shifter may generate a first-type gate clock signal. A rising edge of the first-type gate clock signal and a falling edge of the first-type gate clock signal may be respectively synchronized with a rising edge of the first on-clock signal and a falling edge of the first off-clock signal. The gate driver may output first-type gate signals based on the first-type gate clock signal. The display panel may include pixels. The pixels may emit lights in response to the first-type gate signals. The level shifter may partially block a pulse of the first-type gate clock signal based on the first output control signal to generate sub-pulses.

公开(公告)号：US11270641B1

公开(公告)日：2022-03-08

申请号：US17236481

申请日：2021-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Sik Lee ,  Si Duk Sung ,  Sung Mo Yang ,  Sang Hyun Lee

IPC: G09G3/3233

Abstract: A display device includes a first power source, a timing controller, and pixels. The timing controller is connected to the first power source through a main line, an auxiliary line, and a detection line. The pixels are commonly connected to the first power source through a first power line. The first power source includes: a main power source connected to the first power line and the main line; an auxiliary power source connected to the auxiliary line; a rectifier connected between the auxiliary power source and the first power line; and a comparator comparing a voltage of the first power line and providing its output to the detection line.