Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Seokha Hong

Bonghyun You

Jaehoon Lee

Jaesung Bae

Joon-Chul Goh

Dong-Won Park

Jai-hyun Koh

Sang-uk Lim

Soo-yeon Lee

KyoungHo Lim

Hyunseuk Yoo

Dongjoon Kwag

Jae Hoon Lee

Hyungjin Kim

Nam-Gon Choi

Kuk-Hwan Ahn

Jinpil Kim

Taejin Kim

Moonshik Kang

Joon-chul Goh

Seokyun Son

Young-Soo Hwang

Kyung-Woo Kim

Ahyoung Son

Hye-Sang Park

Kwang-chul Jung

Ji-Sun Kim

Kyungsu Lee

Sunhwa Lee

Donggyu Lee

Won Sik Oh

Namjae Lim

Sungjae Park

Se Hyoung Cho

Jai-Hyun Koh

Geunjeong Park

Kyoung Ho Lim

Mun-San Park

Sang Myeon Han

Ik Soo Lee

Kangmin Kim

Sang-Uk Lim

Taehyeong An

Geun Jeong Park

Ji-eun Park

Iksoo Lee

Ji-Eun Park

Heechul Hwang

Seoung-Bum Pyoun

Kunhee Jo

Moon Shik Kang

Jong-woong Park

Wonsik Oh

Donghwa Shin

Gyusu Lee

Soo-Yeon Lee

An electronic device includes a display panel including a pixel, a sensor that obtains luminance data of an image displayed on the display panel, and a signal controller that receives image data and generates corrected image data based on a compensation value in the image data, wherein the signal controller calculates the compensation value based on initial luminance data and the luminance data.

Electronic device and method of driving electronic device

A display device includes a display panel which displays an image, where a plurality of areas, in each of which a plurality of pixels is positioned, is defined in the display panel, and a controller which generates image data based on an image signal received from the outside and compensates for deterioration of the display panel. The controller includes a stress information generator which generates stress information of the display panel corresponding to the deterioration and a deterioration compensator which changes at least one selected from a spatial resolution and a bit-depth of each of the plurality of areas based on the stress information of each of the plurality of areas.

Display device and method of compensating for deterioration of display device

Provided is a display device comprising a display panel including a plurality of pixels, one of the pixels includes a light emitting device, which is connected with a reference node to emit light, and a driving transistor connected between a power line, which is to receive a power supply voltage, and the reference node. a scan transistor, which is connected between a data line to receive a data signal and the driving transistor and receives a scan signal, a light receiving device, which is connected between a bias line to receive a bias voltage and the reference node, and receives the light, and a masking transistor which is connected between the reference node and the light receiving device and receives a masking signal.

Display device

A method of compensating for degradation of a display device includes: determining a reference region including a part of a first display region and a second display region having pixel structures from each other; determining first stress data of first pixels based on a first average luminance value of the first pixels disposed on the part of the first display region; determining second stress data of second pixels based on a second average luminance value of the second pixels disposed on a central region of the second display region; determining third stress data of third pixels based on a third average luminance value of the third pixels disposed on an outer region of the second display region; compensating for degradation of the second pixels based on the first and second stress data, and compensating for degradation of the third pixels based on the first and third stress data.

Display device and method of compensating for degradation of display device

A display apparatus includes a display panel, a driving controller and a data driver. The driving controller is configured to predict a panel temperature according to a position in the display panel based on input image data, to calculate a block current of a display block of the display panel and a panel resistance according to the position in the display panel based on the panel temperature, to calculate a voltage drop according to the position in the display panel based on the block current and the panel resistance and to compensate the input image data based on the voltage drop to generate a data signal. The data driver is configured to convert the data signal to a data voltage and to output the data voltage to the display panel.

Display apparatus and method of driving the same

A display apparatus includes a plurality of display panels, a current sensor, a driving controller and a data driver. The current sensor is configured to sense a current of each of the display panels. The driving controller is configured to generate a compensation value of each of the display panels based on the current of each of the display panels and to generate a data signal of each of the display panels based on the compensation value. The data driver is configured to convert the data signal into a data voltage and to output the data voltage to each of the display panels.

A display device includes a display panel including a panel region. The panel region includes a block, and the block includes a pixel. The display device further includes a temperature sensor sensing a region temperature of the panel region and a temperature estimator estimating a temperature of the display panel. The temperature estimator includes a stress calculator calculating an accumulated stress value corresponding to the block based on input image data, a temperature potential calculator calculating a temperature potential corresponding to the block based on the accumulated stress value and a resistance model related to a heat diffusion within the display panel, and a temperature calculator calculating a block temperature based on the region temperature and the temperature potential. The temperature of the display panel is estimated based on the block temperature.

Display device, temperature estimator, and method of driving display device

A display device may include a display panel including a plurality of pixels, a data compensator configured to calculate compensation grayscale data for a measuring grayscale based on capturing luminance data including luminances of the pixels corresponding to one of capturing grayscales included in a plurality of grayscales, measuring luminance data including luminances of a plurality of areas of the display panel corresponding to the measuring grayscale other than the capturing grayscales among the grayscales, and input grayscale data for the measuring grayscale, a timing controller configured to generate output grayscale data based on the input grayscale data and the compensation grayscale data, and a data driver configured to generate a data voltage based on the output grayscale data, and provide the data voltage to the display panel.

Display device, image compensation method therefor, and image compensation system therefor

A method of generating information to control display of images providing a display device with align pattern data to which box data having a maximum reference gray level is added, obtaining a first capture image generated based on the align pattern data to which the box data is added, providing the display device with one or more full pattern data respectively having one or more reference gray levels lower than the maximum reference gray level, and obtaining one or more second capture images generated based on the one or more full pattern data. The method also includes generating compensation data including compensation values at the one or more reference gray levels and the maximum reference gray level. The compensation data may be generated based on the one or more second capture images and a portion of the first capture image corresponding to the box data.

Test device, display device, and method of generating compensation data for a display device

A display device includes a degradation compensator, a controller, a data driver, and a display panel. The degradation compensator generates a first fitting function and a second fitting function based on image data, generates a compensation function through a harmonic mean of the first and second fitting functions, and generates a compensation value based on the compensation function. The controller receives the compensation value, and generates input image data to which the compensation value is applied. The data driver receives the input image data to which the compensation value is applied, and converts the input image data into a data voltage. The display panel includes pixels, in which each of the pixels includes a pixel circuit which receives the data voltage and a light-emitting element electrically connected to the pixel circuit.

Display device and method of driving display device

A driving controller includes: a grayscale determiner, which determines a current grayscale of input image data, a deterioration time determiner, which determines a first deterioration time for the current grayscale corresponding to an accumulated deterioration degree, a current deterioration degree calculator, which calculates a second deterioration time by summing the first deterioration time and a calculation period, and calculates a current deterioration degree for the current grayscale according to the second deterioration time, and an image compensator, which compensates the input image data based on the current deterioration degree.

Driving controller and display apparatus for calculating current deterioration degree and compensating deterioration

A tiled display device includes a plurality of display panels coupled to each other, where each of the plurality of display panels includes an edge region adjacent to a boundary line between the plurality of display panels, and a panel driver which multiplies input gray levels of input image data for the plurality of display panels by an adaptive gain, generates boundary compensated image data by adding boundary compensation gray levels to the input gray levels multiplied by the adaptive gain for the edge region, and drives the plurality of display panels based on the boundary compensated image data. The adaptive gain is gradually decreased over a plurality of frame periods in a case where a sum of each of the input gray levels for the edge region and a corresponding one of the boundary compensation gray levels exceeds a maximum gray level.

Tiled display device having a plurality of display panels

A display device includes a display panel and an optical module disposed under the display panel. The display panel includes a first display region under which the optical module is disposed to overlap the first display region in a plan view, the first display region including transparent regions through which light for an operation of the optical module passes and first pixels having a first pixel structure and disposed between the transparent regions, a second display region in which second pixels having a second pixel structure are disposed, and a third display region disposed between the first display region and the second display region, third pixels having a third pixel structure being disposed in the third display region, only part of the third pixels being driven during a display operation.

A test apparatus includes: a compensation coefficient calculator configured to calculate a main compensation coefficient for a main gradation and a sub compensation coefficient for a sub gradation based on a detected image signal; a primary predictor configured to determine a representative value of each of a plurality of blocks of a display panel based on the detected image signal, and output a prediction compensation coefficient for the sub gradation based on the main compensation coefficient and the representative value corresponding to each of the plurality of blocks; a secondary predictor configured to determine a flag based on the sub compensation coefficient and the prediction compensation coefficient; and a controller configured to output the main compensation coefficient, the representative value, and the flag stored in a memory as compensation data.

Apparatus for testing display device and display device for performing mura compensation and mura compensation method

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Seoul, South Korea

Seokha Hong