Samsung Display Co., Ltd.

Jae Sung Bae

Namjae Lim

Joon Chul Goh

Dong-Won Park

Seok Ha Hong

Dong Joon Kwag

Sanghyun Lee

Hyung Jin Kim

Bong Hyun You

Jinpil Kim

Hoi Sik Moon

Tae-Jong Jun

Jae-Gwan Jeon

Hoisik Moon

Sung Jae Park

Sang-Je Lee

Dong Hwa Shin

Jin Pil Kim

Daeki Park

Mu Gyeom Kim

Bonghyun You

Nam-Gon Choi

Kyung-Hoon Kim

Jai-Hyun Koh

Kyung Su Lee

Dong Won Park

Ik Hyun Ahn

Kang Hee Lee

Young Soo Hwang

Gi Geun Kim

Taehyeong An

Yoon Gu Kim

Ji Eun Park

Seung Young Choi

Nam Jae Lim

Tae Hyeong An

The display device includes a display panel and a pixel. A compensator configured to calculate a degradation rate of the pixel based on an input gray level of first image data, and compensates the first image data based on the degradation rate to generate second image data. A data driver configured to generate a data signal based on the second image data and configured to supply the data signal to the pixel. The pixel includes a first element group and a second element group connected in series to each other, the first element group includes at least one first light emitting element, and the second element group includes at least one second light emitting element. The compensator is to calculate the degradation rate by applying first information on the number of the first light emitting elements and second information on the number of the second light emitting elements.

Display device, electronic device, and image data compensating method of display device

A display device includes a display part, a degradation compensator that generates a first compensated grayscale value by compensating for a first grayscale value corresponding to a first pixel, and generates a second compensated grayscale value by compensating for a second grayscale value corresponding to a second pixel, and a data driver that generates a first data signal based on the first compensated grayscale value to supply the first data signal to the first pixel, and generates a second data signal based on the second compensated grayscale value to supply the second data signal to the second pixel. A second degradation curve is defined by a first degradation coefficient corresponding to a first degradation curve, and a second degradation coefficient corresponding to a first estimated degradation curve for the light conversion particles of a second color calculated by applying the first degradation curve.

Display device and degradation compensating method thereof

An afterimage compensator includes: a pixel data generator configured to generate characteristic data for one or more pixels from among a plurality of pixels by using a captured image; a stress accumulator configured to generate an accumulated stress for the one or more pixels in which stress corresponding to the one or more pixels is accumulated based on an image signal of a voltage domain; a domain converter configured to convert the accumulated stress for the one or more pixels from the voltage domain to accumulated stress data for the one or more pixels of a grayscale domain; and a compensator configured to generate compensation data using the characteristic data for the one or more pixels and the accumulated stress data for the one or more pixels.

Afterimage compensator, display device including the same, and method of compensating for image data of display device

A display device includes an afterimage compensator generating output grayscales by applying at least one of first and second weights to input grayscales when the input grayscales correspond to a still image, and pixels displaying an image based on the output grayscales. The afterimage compensator applies the first weight having an initial value greater than 1 to the input grayscales of a first group, and converges the first weight to 1, and applies the second weight having initial values less than 1 to the input grayscales of a second group, and converges the second weights to 1.

Display device and driving method thereof

A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.

Display apparatus having variable frequency mode and method of driving the same

A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.

Display apparatus and method of driving display panel using the same

A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, generates final image data by compensating the input image data to increase luminances of pixels disposed in at least one edge portion of the display panel among the plurality of pixels, and drives the display panel based on the final image data. The input image data for a pixel of the pixels is compensated based on a compensation constant determined according to a position of the pixel when the input image data for the pixel represents a gray level higher than or equal to a first reference gray level, and is compensated based on a reduced compensation constant that is reduced from the determined compensation constant when the input image data for the pixel represents the gray level lower than the first reference gray level.

Display apparatus and display system

A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, divides a border portion of the display panel into edge regions and corner regions, generates final image data by compensating the input image data such that luminances of the edge regions are increased by a first multiplicative factor and luminances of the corner regions are increased by a second multiplicative factor greater than the first multiplicative factor, and drives the display panel based on the final image data.

A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.

Display device supporting variable frame mode, and method of operating display device

A display device according to an exemplary embodiment includes: a display panel including a display area which includes at least one non-quadrangle edge and a plurality of pixels; and a signal controller applying spatial-temporal division processing to an image signal corresponding to a first pixel which is not included in the non-quadrangle edge and bypassing the spatial-temporal division processing to an image signal corresponding to a second pixel which is included in the non-quadrangle edge.

Display apparatus and driving method thereof

A display device includes a display unit which includes a plurality of pixels and a display area having a corner of a non-right angular shape and a signal controller which controls the display unit to display an image through the plurality of pixels based on an input image signal, detects a specific pattern in a partial region, of the image, corresponding to a partial area, of the display unit, including the corner of the non-right angular shape, and controls the display unit to display a partial image corresponding to the partial region of the image in the display area without crossing the corner, according to a position of the specific pattern in the partial region.

Display apparatus, controlling method thereof, and terminal thereof

A display apparatus includes a first pixel, a second pixel, a first selector, and a second selector. The first pixel includes first sub-pixels connected to a first gate line and respectively connected to corresponding data lines included in a first data line group and the second pixel includes second sub-pixels connected to a second gate line adjacent to the first gate line and respectively connected to corresponding data lines, one of which is included in a second data line group different from the first data line group. The first selector applies first data signals to one of odd-numbered data lines, and the second selector applies second data signals having a different polarity from the second data signals to one of even-numbered data lines.

Display apparatus and method of driving the same

A display device includes: a first display panel; a second display panel facing the first display panel and including an optical sensor; an electro-optical active layer positioned between the first display panel and the second display panel; and a sensing gate driver including a first sensing gate driver and a second sensing gate driver, the sensing gate driver configured to transmit a sensing gate signal to the optical sensor, in which a first sensing gate off voltage applied to the first sensing gate driver is substantially the same as a second sensing gate off voltage applied to the second sensing gate driver.

Display device including optical sensor

A display device includes a data request unit in a frame rate controller, and requires and transmits necessary data for the frame data buffer receiving and storing the image data of an entire pixel area and the rest of the frame rate controllers. In a case of a motion picture that is moved among a plurality of display areas, the image data corresponding to a plurality of regions is transmitted from the frame data buffer or a plurality of frame rate controllers, and in a case of the motion picture that is moved between neighboring pixel areas, the image data of the neighboring pixel area is transmitted from the frame data buffer or the neighboring frame rate controller for processing. Accordingly, a fast-moving motion picture may be realized without the need for an additional memory.

Growing community of inventors

Suwon-si, South Korea

Jae Sung Bae