公开(公告)号：US11262861B2

公开(公告)日：2022-03-01

申请号：US16905975

申请日：2020-06-19

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hun Park ,  Soo Won Kim ,  Il Ho Lee

IPC: G06F3/041 ,  H01L27/32 ,  G09G3/3266 ,  H01L51/52 ,  G06F3/044 ,  G09G3/3275

Abstract: A display device includes a display including a plurality of pixels and an input sensor for sensing an input of a user. The display device includes: a driving controller for providing the display with a scan signal and a data signal according to a driving frequency; an input controller for providing a touch driving signal to the input sensor; a horizontal synchronization signal information line connecting the driving controller and the input controller, the horizontal synchronization signal information line transmitting a horizontal synchronization signal therethrough; and a vertical synchronization signal information line connecting the driving controller and the input controller, the vertical synchronization signal information line transmitting a vertical synchronization signal therethrough. Amplitude of the vertical synchronization signal or the horizontal synchronization signal varies according to the driving frequency.

公开(公告)号：US10290258B2

公开(公告)日：2019-05-14

申请号：US15338481

申请日：2016-10-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hun Park ,  Dong Wan Park ,  Jae Won Kim ,  Sang Jin Pak

IPC: G09G3/30 ,  G09G3/3241 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

Abstract: An organic light emitting display device includes a data driver, a pixel unit, a timing controller, and a power generator. The data driver generates data signals to be supplied to data lines based on gamma voltages. The pixel unit controls the amount of current flowing from a first power supply to a second power supply in each of a plurality of pixels based on the data signals and a reference power voltage. The timing controller limits the maximum brightness of the pixel unit corresponding to a plurality of dimming levels. The first power generator changes the voltage of the first power supply corresponding to the dimming levels.