公开(公告)号：US11929002B2

公开(公告)日：2024-03-12

申请号：US17177700

申请日：2021-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongwon Moon ,  Sungyoon Jo ,  Naoaki Komiya ,  Sang-Gon Lee

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/3208

CPC classification number: G09G3/2003 ,  G09G3/006 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/147

Abstract: A method of calculating a gamma-value for a display panel includes displaying a first color test image having a first target gray-level and then measuring a first luminance-value implemented by at least one first color-pixel included in a jth display-area, displaying a second color test image having the first target gray-level and then measuring a second luminance-value implemented by at least one second color-pixel included in the jth display-area, deriving an estimated driving current flowing in the second color-pixel at the first target gray-level based on RGB gray level-driving current curves, deriving a second target gray-level when the estimated driving current flows in the first color-pixel based on the RGB gray level-driving current curves, and calculating a target gamma-value to be applied to the first color-pixel included in the jth display-area based on the first target gray-level, the second target gray-level, the first luminance-value, and the second luminance-value.

公开(公告)号：US09842561B2

公开(公告)日：2017-12-12

申请号：US14854735

申请日：2015-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Yongsoon Lee ,  Sang-Gon Lee ,  Yong-Sik Hwang

IPC: G09G3/20 ,  G06F3/14 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3688 ,  G09G2310/0291

Abstract: A display device includes a voltage generating unit configured to convert an input voltage into an analog driving voltage, a controller configured to receive input image data and an image control signal and generate custom image data and a data control signal, a source driving unit configured to receive the analog driving voltage and convert the custom image data into data voltages in response to the data control signal, a sensing unit configured to sense a load current, wherein the sensing unit is connected to one point on a path through which the input voltage is converted into the analog driving voltage to be provided to the source driving unit, and a display panel configured to receive the data voltages to display an image. The controller receives the sensed load current and generates a selection signal according to a first intensity of the load current.

公开(公告)号：US20210256893A1

公开(公告)日：2021-08-19

申请号：US17177700

申请日：2021-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongwon Moon ,  Sungyoon Jo ,  Naoaki Komiya ,  Sang-Gon Lee

IPC: G09G3/20 ,  G09G3/3208 ,  G09G3/00

Abstract: A method of calculating a gamma-value for a display panel includes displaying a first color test image having a first target gray-level and then measuring a first luminance-value implemented by at least one first color-pixel included in a jth display-area, displaying a second color test image having the first target gray-level and then measuring a second luminance-value implemented by at least one second color-pixel included in the jth display-area, deriving an estimated driving current flowing in the second color-pixel at the first target gray-level based on RGB gray level-driving current curves, deriving a second target gray-level when the estimated driving current flows in the first color-pixel based on the RGB gray level-driving current curves, and calculating a target gamma-value to be applied to the first color-pixel included in the jth display-area based on the first target gray-level, the second target gray-level, the first luminance-value, and the second luminance-value.

公开(公告)号：US09711075B2

公开(公告)日：2017-07-18

申请号：US14542960

申请日：2014-11-17

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Soon Lee ,  Sang-Gon Lee

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08

Abstract: An exemplary embodiment of the present invention provides a display panel including: a display area configured to include a gate line and a data line; and a gate driver connected to one terminal of the gate line, the gate driver including a plurality of stages and being integrated on a substrate to output a gate voltage. The stages are divided into at least two stage groups, a first pair of clock signals including a first clock signal and a first clock-bar signal is applied to a first one of the stage groups, and the first pair of clock signals is not swung for a time period in one frame.

公开(公告)号：US09666155B2

公开(公告)日：2017-05-30

申请号：US14549214

申请日：2014-11-20

Applicant: Samsung Display Co., LTD.

Inventor： Sang-Gon Lee ,  Yong-Sik Hwang ,  Ji-Young Eom ,  Whee-Won Lee

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3688 ,  G09G3/2092 ,  G09G3/3611 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2330/026

Abstract: A data lines driver includes a digital to analog converter configured to generate a normal data voltage based on a data signal, a buffer configured to buffer the normal data voltage and a power-on/reset part configured to generate an initial data voltage varying according to time and to selectively output either the initial data voltage or the normal data voltage.