公开(公告)号：US20180040288A1

公开(公告)日：2018-02-08

申请号：US15665876

申请日：2017-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonjong OHN ,  Youngjin Kim ,  Taekyoung Kim ,  Joonbum Lee ,  Jaemin Ha

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3677 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0219 ,  G09G2320/0257 ,  G09G2320/0673 ,  G09G2360/16

Abstract: An LCD device and a method of driving the LCD device that reduce scattering afterimages, the LCD device including: a liquid crystal display panel including a gate line, a data line intersecting the gate line and a pixel connected to the gate line and the data line; a timing controller receiving a data signal including a plurality of frames and outputting a data signal; a power supply generating a gamma reference voltage corresponding to the data signal; and a data driver receiving the data signal, receiving the gamma reference voltage corresponding to the data signal from the power supply and applying a data voltage to the data line. The timing controller includes: an analyzer comparing the data signal with an afterimage reference pattern; a determinator determining an afterimage vulnerable data signal of the data signal; and a control signal output circuit outputting a gamma reference voltage control signal increasing and decreasing a gamma reference voltage by a variable data voltage on a frame-by-frame basis in accordance with the afterimage vulnerable data signal. The power supply includes a gamma reference voltage adjuster receiving the gamma reference voltage control signal to adjust the gamma reference voltage.

公开(公告)号：US20200051515A1

公开(公告)日：2020-02-13

申请号：US16400311

申请日：2019-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Keon KIM ,  Wonjong OHN ,  Moah CHOI

IPC: G09G3/36

Abstract: A display device includes a data driver which outputs a data voltage of a positive polarity or a negative polarity to a data line based on the polarity control signal by a horizontal period, and a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy a condition of an afterimage pattern.

公开(公告)号：US20190150297A1

公开(公告)日：2019-05-16

申请号：US16143670

申请日：2018-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Young-jin KIM ,  Kiseok CHA ,  Ickkyu JANG ,  Yunmi KIM ,  Wonjong OHN

IPC: H05K3/36 ,  G09F9/30 ,  G09G3/20 ,  H05K1/18 ,  H05K3/32

Abstract: A display device includes a display panel that is curved in a direction surrounding an imaginary bending axis and has a top surface in which a plurality of panel bonding areas arranged in the curved direction is defined, a printed circuit board that is curved in the direction surrounding the bending axis and has a rear surface in which a plurality of board bonding areas arranged in the curved direction is defined, and a plurality of flexible circuit boards, each of which includes one end disposed on a corresponding one of the panel bonding areas so as to be connected to the display panel, and another end disposed on a corresponding one of the board bonding areas so as to be connected to the printed circuit board.