Samsung Display Co., Ltd.

Young Wook Yoo

Byung Ki Chun

Jun Gyu Lee

Hyun Jun Lim

Hyeon Min Kim

Kuk-Hwan Ahn

Seung Jae Lee

Ji Hye Kim

Jin Wook Yang

Naoaki Komiya

Hae Kwan Seo

Sung Hoon Bang

Jungyu Lee

Jun Heyung Jung

Soon Dong Kim

Su Min Yang

Hyunjun Lim

Chang Noh Yoon

Kuk Hwan Ahn

Pil Ho Kim

A display device includes pixels, an image converter which generates a second image by correcting grayscales of a first logo in a first image for the pixels, and a data driver which provides data signals corresponding to the second image to the pixels. The image converter detects the first logo based on value and saturation of the first image, generates first map data corresponding to the first logo, and specifies pixels corresponding to the first logo based on the first map data.

Display device and method of driving the same

An afterimage compensator includes: a logo detector configured to detect a logo area including a logo image displayed in a display panel and a logo background image included in a preset range at the periphery of the logo image, based on input image data; a blurring determiner configured to determine a blurring area corresponding to the logo image, using the logo image and the logo background image; and an image corrector configured to blur the logo image, based on the blurring area.

Afterimage compensator, display device having the same, and method for driving display device

The display device includes a plurality of pixels, a data driver, and a timing controller. The plurality of pixels are connected to a plurality of scan lines and a plurality of data lines. The data driver supplies a data voltage to the plurality of data lines in a light-emitting mode and supplies a neural network input voltage to the plurality of data lines in an artificial neural network mode. The timing controller is in an artificial neural network mode, and supplies a weight value control signal for performing a deep learning operation by using at least one of the plurality of pixels to the data driver. The weight value control signal is generated based on a predetermined weight value.

Display device including a light-emitting mode and a neural network mode

A display device according to an embodiment includes a plurality of pixel blocks including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines, respectively, and at least one active circuit; and a data driver supplying a data voltage to the plurality of data lines in a light emitting mode and supplying a neural network input signal to the plurality of data lines in an artificial neural network mode. In the artificial neural network mode, a scan signal is supplied to a scan line connected to at least one pixel block among the plurality of pixel blocks, and the neural network input signal is supplied to a data line connected to the at least one pixel block.

Display device

A display device includes pixels, an image converter generating second image data using first image data of an N-th frame and first image data of an (N+1)th frame; and a data driver supplying a data signal corresponding to the second image data to the pixels during an (N+1)th frame period. The image converter detects a logo and a logo area using the first image data, calculates a first representative value of data corresponding to a peripheral area of the logo area among the first image data of an N-th frame and a second representative value of data corresponding to a reference area among the first image data of the (N+1)th frame, and selectively converts data for the logo among the first image data of the (N+1)th frame according to the first representative value and the second representative value to generate the second image data of the (N+1)th frame.

A display device includes: a display panel including first and second display areas adjacent to each other; and first and second data drivers configured to drive the first and second display areas, respectively, wherein the first data driver includes: a first afterimage detector configured to receive an input image and to detect a first afterimage area including an afterimage of the first display area from the input image; a first comparator configured to compare an afterimage detection result of the first display area with an afterimage detection result of the second display area received from the second data driver; and a first coordinate corrector configured to correct coordinates of the first afterimage area in response to the afterimage detection result of the first display area and the afterimage detection result of the second display area satisfying a preset reference.

A display device includes: pixels arranged in a display area; a timing controller which generates image data of each frame based on an input image signal of the each frame, the timing controller including a logo controller which detects a logo image and a logo area including the logo image from the input image signal of the each frame to control luminance of the logo image; and a data driver which generates a data signal based on the image data and supplies the data signal to the pixels. The logo controller generates a first logo map based on an input image signal of a previous frame, generates a second logo map based on an input image signal of a current frame, and determines a similarity between the first logo map and the second logo map to selectively change luminance of a logo image of a next frame.

Display device and driving method thereof

A display device includes pixels; an image converter which generates a second image by correcting grayscales of a logo among a first image for the pixels; and a data driver which provides data voltages corresponding to the second image to the pixels. The image converter generates first accumulated data by accumulating first map data corresponding to a logo area larger than the logo among the first image during a plurality of frame periods, generates second accumulated data by scaling the first accumulated data every refresh cycle, generates third accumulated data by initializing values smaller than a first threshold value among the second accumulated data to be a background value, and specifies pixels corresponding to the logo based on second map data corresponding to the third accumulated data.

Display device correcting grayscales of logo and driving method thereof

An object detection post-processing device of a display device, includes: an input to receive position information of an object that is detected from input image data for the display device in a current frame; a position information storage device to accumulatively store the position information of a plurality of previous frames; an accumulated position calculator to generate accumulated position information according to the position information of the current frame and the position information of the plurality of previous frames; and a position information determiner to determine final position information according to the accumulated position information, and to output the final position information.

Object detection post-processing device, and display device including the same

A driving controller includes a logo detector. The logo detector includes a histogram extractor which receives input image data and extracts a first histogram from logo area data of the input image data, a first histogram regenerator electrically connected to the histogram extractor and configured to receive the first histogram from the histogram extractor to generate a second histogram based on the first histogram and a logo map determiner electrically connected to the histogram extractor and the first histogram regenerator, and configure to select one of the first histogram and the second histogram to generate a first logo map. The driving controller is configured to compensate the logo area data of the input image data using the first logo map.

Driving controller, display apparatus including the same and method of driving display panel using the same

A display device including: a first pixel region including first pixels connected to a data line and first scan lines; a second pixel region in contact with the first pixel region at a first boundary and including second pixels connected to the data line and second scan lines; and a third pixel region in contact with the second pixel region at a second boundary and including third pixels connected to the data line and third scan lines, wherein the display device is configured to scale an image displayed in the second pixel region one or more times based on the second pixel region maintaining a folded state.

An afterimage compensator includes: a global shifter configured to determine an upscaling area and a downscaling area of a display unit, that together correspond to a preset global shift path, to shift a main image of the display unit; a logo shifter configured to analyze image data corresponding to a logo image and a preset logo peripheral area surrounding the logo image, and configured to determine a logo upscaling area and a logo downscaling area that are each included in the logo peripheral area, the logo shifter being further configured to shift the logo image; and a scaler configured to combine the upscaling area, the downscaling area, the logo upscaling area, and the logo downscaling area and configured to scale image data corresponding to the combined scaling area.

Afterimage compensator and method for driving display device

There are provided an organic light emitting display device capable of enhancing display quality. The organic light emitting display device includes a compensation unit configured to extract current information of an organic light emitting diode (OLED) of a pixel, and configured to determine a brightness compensation amount corresponding to the extracted current information, and a timing controller configured to generate second data by changing bits of externally supplied first data according to the brightness compensation amount, wherein the compensation unit is configured to obtain the brightness compensation amount using a current variation corresponding to a degradation of the OLED, and using a linear function corresponding to the current variation.

Organic light emitting display device and driving method thereof

A flexible display device includes a sensing line, a sensor, and a signal controller. The sensor generates a sensing signal corresponding to a quantity of light of the sensing line. The signal controller detects an intersection of the sensing line and the sensor and generates a control signal corresponding to movement of the intersection.

Flexible display device

An organic light-emitting display device, including a display unit including a plurality of pixels each having an organic light-emitting diode (OLED), a controller configured to accumulate image data of each frame and to generate compensated image data using a degradation compensation method determined, based on the accumulated image data, to compensate for the degradation of the OLED of each of the pixels, and a data driver configured to generate a data voltage according to the compensated image data and to provide the data voltage to the pixels.

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Yongin-si, South Korea

Young Wook Yoo