公开(公告)号：US11250775B2

公开(公告)日：2022-02-15

申请号：US16374675

申请日：2019-04-03

Applicant: Samsung Display Co., Ltd.

Inventor： Ju Hee Lee ,  Dae Youn Cho ,  Jong Woo Park ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: A display device includes a pixel, a first control pad, a second control pad, and a first dummy pad. The pixel may emit light with luminance corresponding to a data signal. Supply of the data signal to the pixel depends on a first control signal and a second control signal. The first control pad is connected to a first control line for supplying the first control signal. The second control pad is connected to a second control line for supplying the second control signal. The first dummy pad is positioned between the first control pad and the second control pad and may receive a first dummy signal. A voltage level of the first dummy signal is in a range from a voltage level of the first control signal to a voltage level of the second control signal.

公开(公告)号：USD904398S1

公开(公告)日：2020-12-08

申请号：US29680758

申请日：2019-02-19

Applicant: Samsung Display Co., Ltd.

Designer： Jong Woo Park ,  Ju Hee Lee ,  Dae Youn Cho ,  Young Tae Choi

公开(公告)号：US20190213958A1

公开(公告)日：2019-07-11

申请号：US16240515

申请日：2019-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Youn Cho ,  Tae Young Kim ,  Hee Jin Kim ,  Jong Woo Park ,  Young Tae Choi

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3258 ,  H01L27/32

Abstract: An organic light-emitting display device includes a display unit having a plurality of pixel units. The display device also includes a timing controller for calculating a black bias pixel ratio (BBPR) of the display unit based on image signals provided by an external source and for generating a control signal based on the BBPR. The BBPR is the ratio of a number of pixel units in a black state to a total number of pixel units. A power supply unit provides a driving voltage to the display unit based on the control signal from the timing controller, wherein the power supply unit provides a first driving voltage to the display unit when the BBPR is less than a reference value and provides a second driving voltage, which is higher than the first driving voltage, otherwise.