公开(公告)号：US20190088228A1

公开(公告)日：2019-03-21

申请号：US15939552

申请日：2018-03-29

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung-hun LEE

IPC: G09G3/36

Abstract: A display apparatus includes a display panel including a plurality of pixels, a gate driver generating a plurality of gate signals using a gate-on voltage and a gate-off voltage and providing the gate signals to the pixels, a data driver providing data voltages to the pixels, a timing controller controlling an operation timing of the gate driver and the data driver, a voltage generator providing the gate-on voltage and the gate-off voltage to the gate driver, and a timer measuring an operation time and providing the measured operation time to the timing controller. The timing controller controls the voltage generator such that a level of the gate-on voltage is controlled depending on the operation time and the level of the gate-on voltage is controlled depending on a magnitude of the gate-on voltage in a different way from a way to control depending on the operation time and the temperature.

公开(公告)号：US20210056926A1

公开(公告)日：2021-02-25

申请号：US17092650

申请日：2020-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun KOO ,  Haksun KIM ,  Kyung-hun LEE

IPC: G09G5/00 ,  G09G3/20 ,  H04N7/01

Abstract: A display device includes a display panel which includes pixels arranged in a matrix form and a controller which receives a first image signal corresponding to a first active period of a first frame, outputs a first final output signal corresponding to a first conversion active period of the first frame, and drives the display panel based on the first final image signal. The controller includes a timing changing unit which receives the first image signal and changes a first image signal pixel size corresponding to the first image signal to a panel pixel size corresponding to the display panel to generate the first output signal, and a frequency changing unit which receives the first output signal from the timing changing unit and reduces a frame frequency of the first output signal based on the first image signal to output the first final output signal.

公开(公告)号：US20180151149A1

公开(公告)日：2018-05-31

申请号：US15818008

申请日：2017-11-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun KOO ,  Haksun KIM ,  Kyung-hun LEE

IPC: G09G5/00 ,  G09G3/20 ,  H04N7/01

CPC classification number: G09G5/005 ,  G09G3/2092 ,  G09G2310/08 ,  G09G2320/103 ,  G09G2340/04 ,  G09G2340/0407 ,  G09G2340/0435 ,  H04N7/0122

Abstract: A display device includes a display panel which includes pixels arranged in a matrix form and a controller which receives a first image signal corresponding to a first active period of a first frame, outputs a first final output signal corresponding to a first conversion active period of the first frame, and drives the display panel based on the first final image signal. The controller includes a timing changing unit which receives the first image signal and changes a first image signal pixel size corresponding to the first image signal to a panel pixel size corresponding to the display panel to generate the first output signal, and a frequency changing unit which receives the first output signal from the timing changing unit and reduces a frame frequency of the first output signal based on the first image signal to output the first final output signal.

公开(公告)号：US20190279596A1

公开(公告)日：2019-09-12

申请号：US16426531

申请日：2019-05-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun KOO ,  Haksun KIM ,  Kyung-hun LEE

IPC: G09G5/00 ,  G09G3/20 ,  H04N7/01

Abstract: A display device includes a display panel which includes pixels arranged in a matrix form and a controller which receives a first image signal corresponding to a first active period of a first frame, outputs a first final output signal corresponding to a first conversion active period of the first frame, and drives the display panel based on the first final image signal. The controller includes a timing changing unit which receives the first image signal and changes a first image signal pixel size corresponding to the first image signal to a panel pixel size corresponding to the display panel to generate the first output signal, and a frequency changing unit which receives the first output signal from the timing changing unit and reduces a frame frequency of the first output signal based on the first image signal to output the first final output signal.

公开(公告)号：US20180158432A1

公开(公告)日：2018-06-07

申请号：US15829007

申请日：2017-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jahun KOO ,  Haksun KIM ,  Kyung-hun LEE ,  Ho LEE

IPC: G09G3/36 ,  G09G3/3291 ,  G09G5/00

Abstract: A display device includes a display panel which includes a plurality of gate lines and a plurality of pixels, where each of the pixels is connected to a corresponding gate line among the gate lines, and a gate driving circuit which includes a stage that applies a gate signal to at least one of the gate lines. The gate signal includes a high period in which the gate signal has a high voltage and a low period in which the gate signal has a low voltage having a level less than a level of the high voltage, and the low period includes a falling period in which the low voltage falls to a second level from a first level which is greater than the second level.