公开(公告)号：US11211008B2

公开(公告)日：2021-12-28

申请号：US16849325

申请日：2020-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Woong Park ,  Ho Suk Maeng ,  Weon Jun Choe

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

Abstract: A display device driven in one of a first mode and a second mode includes a first pixel area which includes first pixels, a second pixel area which includes the second pixels, a first boundary area which is included in the second pixel area and to be positioned between boundary portions of the first pixel area and the second pixel area, and a luminance controller which controls first boundary data corresponding to the first boundary area so that luminance of the first boundary area is gradually changed corresponding to a first data signal applied to the first pixels and the second pixels when the display device is driven in the second mode.

公开(公告)号：US11158266B2

公开(公告)日：2021-10-26

申请号：US16401083

申请日：2019-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Yeol Baek ,  Weon Jun Choe ,  Kwang Suk Shin

IPC: G09G3/3291

Abstract: A display device includes a frame frequency detector, a data generator, a data driver, and a plurality of pixels. The frame frequency detector is configured to detect a varied frame frequency to generate frame frequency information. The data generator is configured to receive an image signal and the frame frequency information, confirm an expanded frame period exceeding a reference frame period in one frame from the frame frequency information, and correct an image data signal corresponding to the image signal to correspond to a luminance changed according to the expanded frame period. The data driver is configured to output a data voltage corresponding to the image data signal. The plurality of pixels is configured to emit luminance corresponding to the data voltage. The reference frame period is a period in which the plurality of pixels is configured to emit light with a constant luminance corresponding to the data voltage.

公开(公告)号：US10535301B2

公开(公告)日：2020-01-14

申请号：US15835121

申请日：2017-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Se Byung Chae ,  Weon Jun Choe ,  Jin Young Jeon

IPC: G09G3/3233

Abstract: A data driver includes an input unit configured to receive data from outside, a digital-analog converter configured to generate a data signal by using the data, a data comparator configured to compare a reference gray scale value with the data and to generate a first control signal or a second control signal corresponding to a comparison result, and an output unit configured to supply the data signal to data lines, wherein the output unit includes at least one buffer, and a slew rate of the at least one buffer is set to vary depending on whether the first control signal or the second control signal is generated.

公开(公告)号：US20190228731A1

公开(公告)日：2019-07-25

申请号：US16373522

申请日：2019-04-02

Applicant: SAMSUNG DISPLAY CO., LTD. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Moon Sang Hwang ,  Weon Jun Choe ,  Jun Sang Park ,  Tai Ji An ,  Seung Hoon Lee

IPC: G09G3/36

Abstract: A data driver includes a digital to analog converter configured to receive a reference gray voltage and image data, and configured to generate gray voltages corresponding to the image data, and an output buffer including a plurality of buffer circuits connected to an output terminal of the digital to analog converter, and configured to selectively receive one of the gray voltages.

公开(公告)号：US10168823B2

公开(公告)日：2019-01-01

申请号：US14885923

申请日：2015-10-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bo Young An ,  Ho Suk Maeng ,  Weon Jun Choe

IPC: G06F3/041 ,  G09G3/36

Abstract: A data driving circuit according to an exemplary embodiment includes a controller configured to generate a storing control signal which controls a memory storing direction and a read control signal which controls a memory reading direction, the memory storing direction and the memory reading direction determined according to a rotation signal; a memory in which a sensing signal corresponding to a touch state of one or more touch sensors is configured to be stored in accordance with the storing control signal; and a rendering unit configured to read the sensing signal according to the memory reading direction of the read control signal and to combine a first image data signal with the sensing signal so as to generate a second image data signal.