公开(公告)号：US12223896B2

公开(公告)日：2025-02-11

申请号：US18113296

申请日：2023-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： Subin Park ,  Soyoung Kim ,  Jungkook Park

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A display device includes a display panel including pixels, and a timing controller which determines a first dimming period and a second dimming period based on a maximum luminance, determines an emission off ratio of the pixels as a first off ratio increasing discretely as the maximum luminance decreases in the first dimming period, and determines the emission off ratio as a second off ratio in the second dimming period.

公开(公告)号：US11538415B2

公开(公告)日：2022-12-27

申请号：US17256500

申请日：2019-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byunghyuk Shin ,  Soyoung Kim ,  Donghak Pyo

IPC: G09G3/3266 ,  G09G3/3258 ,  G09G3/3291 ,  H01L27/32 ,  H01L27/12 ,  H01L29/786

Abstract: A clock and voltage generation circuit includes a voltage generator which generates a first gate high voltage, a first gate low voltage, a second gate high voltage, and a second gate low voltage, a first level shifter which generates a first gate clock signal which swings between the first gate high voltage and the first gate low voltage in synchronization with a gate pulse signal, and a second level shifter which generates a second gate clock signal which swings between the second gate high voltage and the second gate low voltage in synchronization with the gate pulse signal. The voltage generator lowers the second gate high voltage to a voltage level of a kickback reference voltage in response to a kickback signal, and the first gate low voltage and the second gate high voltage are gate-on voltages, and the first gate high voltage and the second gate low voltage are gate-off voltages.