公开(公告)号：US11594196B2

公开(公告)日：2023-02-28

申请号：US17132936

申请日：2020-12-23

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Beom Cho ,  Hee Bum Park ,  Dae Sik Lee ,  Song Yi Han

IPC: G09G3/3266 ,  G09G5/00 ,  G09G3/20 ,  G09G5/18 ,  G09G3/36

Abstract: A display device includes a display panel including a plurality of pixels which are connected to a plurality of gate lines and a plurality of data lines and display a plurality of consecutive frames of images, a data driver driving the data lines, a gate driver driving the gate lines, a clock generator outputting a gate clock signal, which drives the gate driver and swings between a gate-on voltage and a gate-off voltage, and a signal controller outputting a gate pulse signal which drives the clock generator and a data control signal which controls the data driver. The clock generator includes a voltage maintainer maintaining the gate clock signal at a reference voltage that has a fixed value between the gate-on voltage and the gate-off voltage for a predetermined time.

公开(公告)号：US10650747B2

公开(公告)日：2020-05-12

申请号：US15827461

申请日：2017-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Beom Cho ,  Hee Bum Park ,  Song Yi Han

IPC: G09G3/30 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/36

Abstract: A display device includes: a timing controller to provide data including a pre-emphasis value and an image data value; a gamma reference voltage supplier to selectively supply one of a first gamma reference voltage and a second gamma reference voltage different from the first gamma reference voltage; and a data driver to supply a pre-emphasis voltage, that is generated based on the pre-emphasis value and the first gamma reference voltage, to data lines during a first period of a horizontal period, and to supply a data voltage, that is generated based on the image data value and the second gamma reference voltage, to the data lines during a second period of the horizontal period. The timing controller is to control the gamma reference voltage supplier to supply the first gamma reference voltage during the first period and to supply the second gamma reference voltage during the second period.

公开(公告)号：US10424260B2

公开(公告)日：2019-09-24

申请号：US15793258

申请日：2017-10-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong Doo Lee ,  Sang Jun Park ,  Sung Jun Kim ,  Sung Yup Kim ,  Mi Young Park ,  Hee Bum Park

IPC: G09G5/02 ,  G09G3/36 ,  G09G3/20 ,  H01L27/32

Abstract: A display device includes a plurality of pixels, each including a first sub-pixel indicating a first color, a second sub-pixel indicating a second color, and a third sub-pixel indicating a third color, data lines coupled to pixels arranged in a first direction and configured to supply a data signal to the coupled pixels, gate lines coupled to pixels arranged in a second direction crossing the first direction and configured to supply a gate signal to the coupled pixels, and a compensation circuit configured to calculate a difference between grayscale values of a data signal to be supplied to the first to third sub-pixels, and generate a clock signal based on the difference that controls a start time at which the data signal is inputted to the pixels.