Samsung Electronics Co., Ltd.

Young-hoon Cho

Ji-yong Park

Sang-kyun Im

Min-jung Kim

Hye-rin Choi

Ji Yong Park

Sang Kyun Im

Tae-hyeun Ha

Tae-hoon Kim

Byeong-cheol Hyeon

Nam-kyun Beon

Scott Seongwook Lee

Hye Rin Choi

Provided are a light-emitting diode (LED) display device and a method of operating the LED display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an LED line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one LED line based on the LED line scan order. An LED line scan order may be adjusted according to a level of an input/output image signal in an LED display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal.

Light-emitting diode display device and method of operating the same

A display device includes a signal receiver configured to receive an image signal; a display including a plurality of modules each including a plurality of light sources, and display an image based on the received image signal; and a controller configured to perform first uniformity calibration between light sources within each individual module with regard to the modules, and second uniformity calibration between the modules, wherein the controller controls the first uniformity calibration to be applied to the image signal received in the signal receiver based on a first coefficient determined for each of the light sources within each individual module, controls the second uniformity calibration to be applied to the image signal subjected to the first uniformity calibration based on a second coefficient determined for each of the modules, and controls a calibrated image to be displayed based on the image signal subjected to the second uniformity calibration.

Display device including plurality of modules and control method therefor

Provided a display apparatus including a display including a plurality of display modules, each display module of the plurality of display modules including a pixel driving circuit and at least one pixel including a red inorganic light emitting element, a green inorganic light emitting element, and a blue inorganic light emitting element, a signal receiver configured to receive an image signal having a plurality of grayscales, and a controller configured to divide the display into a plurality of regions, each region of the plurality of regions having a same area and including at least one display module among the plurality of display modules, calibrate the image signal to output uniform light from each of the plurality of regions, and control the pixel driving circuit to display an image based on the calibrated image signal.

Display apparatus dividing the display into a plurality of regions and uniform light control method thereof

A display apparatus includes a signal receiver configured to receive an image signal having a plurality of gradations; a display configured to display an image based on the received image signal; a storage configured to store a plurality of calibration coefficients corresponding to more than two gradations from among the plurality of gradations to calibrate a uniformity of the image; and a controller configured to control the display to apply to the received image signal, a calibration coefficient corresponding to a gradation of the received image signal from among the plurality of gradations to display the image. With this, the uniformity of the image outputted from the display apparatus is exactly calibrated with respect to the plurality of gradations.

Display device having an applied calibration using gradations and control methods thereof

A method of operating a light emitting diode (LED) display device is provided. The method includes determining idle time periods respectively corresponding to LED driving clock signals, based on a number of LED driving clock signals corresponding to one frame, controlling generation of the LED driving clock signals, based on the determined idle time periods, and driving an LED module in a unit of an LED line, based on the generated LED driving clock signals. As the LED display device automatically adjusts idle time periods of the LED driving clock signals, the occurrence of flicker in the LED display device may be reduced.

Light emitting diode display device and method of operating the same

A display apparatus includes a cabinet; a display panel provided on the cabinet; a door provided on the cabinet and configured to be opened and closed; a first detector configured to detect opening of the door and output a first signal in response to the door being opened; an image data receiver configured to receive content data from an image source device; and a first controller configured to control the display panel to display a first image corresponding to the content data received from the image source device and control the display panel to display a second image different from the first image in response to receiving the first signal.

Display apparatus, image playing apparatus, and display system

A display device is provided, which includes a display, a ditherer configured to perform dithering of video data displayed on the display, an illumination sensor configured to sense illumination around the display device, and a processor configured to control driving of the ditherer on the basis of a grayscale level of the video data if or when the sensed illumination is lower than a predetermined value.

Display device and method for controlling the same

An operating method of an image display apparatus includes detecting a screen aspect ratio of an input image; determining rotation control information regarding a tiled display of the image display apparatus, the tiled display including a plurality of individually rotatable display modules, according to the detected screen aspect ratio of the input image; rotating each of the plurality of display modules according to the determined rotation control information; and controlling the plurality of display modules to display the input image according to the determined rotation control information.

Image display apparatus and operating method of the same

A pairing apparatus and method are provided. The pairing apparatus includes: a first communicator configured to broadcast a search signal over a first communication method, and to receive, from the external communication apparatus, a first response signal in response to the search signal; a second communicator configured to receive a second response signal via a second communication method having a shorter transmission range than the first communication method; and a controller configured to, in response to the first communicator receiving the first response signal and the second communicator receiving the second response signal, control to perform a pairing with the external communication apparatus, wherein the second communicator is periodically activated while the pairing apparatus is turned on, and an activation period of the second communicator is set adaptively according to a transmission period of the second response signal.

Pairing apparatus and method thereof

A color calibration apparatus includes an image obtaining unit configured to obtain first and second photographed images which are generated by photographing first and second mono-color test images displayed on the display device; a controller configured to detect an ambient light area on which an ambient light is shining within the first photographed image based on pixel values of the first photographed image, and further configured to determine a remaining area of the first photographed image other than the ambient light area as a representative value calculating area; and an image processor configured to calculate a representative value based on pixel values of an area corresponding to the representative value calculating area within the second photographed image, and further configured to perform color calibration of the display device based on the representative value.

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Suwon-si, South Korea

Young-hoon Cho