公开(公告)号：US09508289B2

公开(公告)日：2016-11-29

申请号：US14283134

申请日：2014-05-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Min Bae

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2330/028 ,  G09G2340/0428

Abstract: A display device includes pixel circuits with light emitting devices coupled to a first voltage and a second voltage; a signal controller configured to: generate output image data by gamma converting and by decreasing input image data of a frame according to a gamma curve; and generate a control signal to display an image on the panel according to the generated output image data; a voltage difference setting unit configured to detect a maximum value in the output image data, and configured to calculate a difference value between the first voltage and the second voltage so that a driving current corresponding to the maximum value is generated; and a power supply unit configured to generate and apply the first and second voltages to the panel, the generated first and second voltages corresponding to the calculated difference value, wherein the gamma curve comprises one or more inflection points.

Abstract translation: 显示装置包括具有耦合到第一电压和第二电压的发光装置的像素电路; 信号控制器，被配置为：通过伽马变换生成输出图像数据，并根据伽马曲线减少帧的输入图像数据; 并产生控制信号，以根据生成的输出图像数据在面板上显示图像; 电压差设定单元，被配置为检测所述输出图像数据中的最大值，并且被配置为计算所述第一电压和所述第二电压之间的差值，使得产生与所述最大值相对应的驱动电流; 以及电源单元，被配置为产生并将第一和第二电压施加到面板，所产生的第一和第二电压对应于所计算的差值，其中伽马曲线包括一个或多个拐点。

公开(公告)号：US20150170577A1

公开(公告)日：2015-06-18

申请号：US14283134

申请日：2014-05-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Min Bae

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2330/028 ,  G09G2340/0428

Abstract: A display device includes pixel circuits with light emitting devices coupled to a first voltage and a second voltage; a signal controller configured to: generate output image data by gamma converting and by decreasing input image data of a frame according to a gamma curve; and generate a control signal to display an image on the panel according to the generated output image data; a voltage difference setting unit configured to detect a maximum value in the output image data, and configured to calculate a difference value between the first voltage and the second voltage so that a driving current corresponding to the maximum value is generated; and a power supply unit configured to generate and apply the first and second voltages to the panel, the generated first and second voltages corresponding to the calculated difference value, wherein the gamma curve comprises one or more inflection points.

Abstract translation: 显示装置包括具有耦合到第一电压和第二电压的发光装置的像素电路; 信号控制器，被配置为：通过伽马变换生成输出图像数据，并根据伽马曲线减少帧的输入图像数据; 并产生控制信号，以根据生成的输出图像数据在面板上显示图像; 电压差设定单元，被配置为检测所述输出图像数据中的最大值，并且被配置为计算所述第一电压和所述第二电压之间的差值，使得产生与所述最大值相对应的驱动电流; 以及电源单元，被配置为产生并将第一和第二电压施加到面板，所产生的第一和第二电压对应于所计算的差值，其中伽马曲线包括一个或多个拐点。

公开(公告)号：US11380254B2

公开(公告)日：2022-07-05

申请号：US16407935

申请日：2019-05-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Soo Kim ,  Woo Chul Kim ,  Hyun Su Kim ,  Young Min Bae

IPC: G09G5/02 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/3291 ,  G09G3/3208

Abstract: In a display device including pixels that are coupled to data lines, that are supplied with a data signal during a display period, and that are configured to emit light corresponding to the data signal during a bias period, the display device includes a source capacitor coupled to each of the data lines, and a data driver configured to supply the data signal during the display period, to supply a bias signal during a first period in the bias period, and to not supply the bias signal during a second period.

公开(公告)号：US11094256B2

公开(公告)日：2021-08-17

申请号：US16542188

申请日：2019-08-15

Applicant: Samsung Display Co., Ltd.

Inventor： Hee Kwon Eun ,  Young Min Bae

IPC: G09G3/3241 ,  G06F3/14

Abstract: A display device and a driving method thereof are provided. The display device includes: a display panel including a plurality of pixels; a timing controller for calculating an On-Pixel Ratio (OPR) of input image data with respect to an arbitrary frame, and correcting the input image data, based on the OPR; and a data driver for generating a data signal, based on the corrected image data, and providing the data signal to the display panel. The OPRs are calculated in units of pixel rows.