Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.

Abstract: There is provided a color gamut mapping device capable of fine adjustment configured to map a color signal to a predetermined color gamut by changing the saturation, hue, and luminance of the corresponding color signal, the color gamut mapping device including a hue angle calculation unit configured to calculate a hue angle using saturation components (Cb, Cr) of a YCbCr-type color signal (Y, Cb, Cr); a parameter generation unit configured to generate at least one of a saturation parameter, a luminance parameter, and a hue parameter using the hue angle; and a color signal changing unit configured to change the YCbCr-type color signal (Y, Cb, Cr) to be mapped to a predetermined color gamut using the parameter, wherein the color signal changing unit includes a saturation changing unit configured to calculate a saturation boundary value determined as a boundary of a predetermined rectangle on a Cb-Cr coordinate plane.

Abstract: The disclosure provides an image processing device and method capable of removing a halo artifact and increasing contrast enhancement effect when enhancing the contrast of an image. The image processing method includes obtaining a first blurring image by performing interpolation based on a representative value of each of blocks, having a predetermined size, of a previous frame image; obtaining a second blurring image in which boundary information is restored, through a weighted sum of a current frame image and the first blurring image; and performing contrast enhancement on the current frame image by using a difference image between the second blurring image and the current frame image.

Abstract: An embodiment relates to a technology for accelerating data communication in a display device and provides a technology for transmitting and receiving at least some information using a communication line for indicating a clock training state.

Abstract: A display driving device for improving the definition of an image according to one aspect of the present invention includes a brightness calculator for calculating first brightness data corresponding to a first resolution and second brightness data corresponding to a second resolution less than the first resolution using input image data, an offset calculator for calculating an offset on the basis of the first brightness data and the second brightness data, an input image converter for converting the input image data into input image data to which the calculated offset has been applied, a first data output unit for generating output image data for a first panel using the converted input image data and outputting the generated output image data, and a second data output unit for generating output brightness data for a second panel using the second brightness data and outputting the generated output brightness data.

Abstract: The present embodiment relates to a technique for speeding up data communication in a display device and provides a technique for transmitting and receiving at least some information using a communication line indicating a clock training state and for automatically optimizing the configuration of an equalizer in a receiving device.

Abstract: An embodiment enables natural and smooth change in the brightness of a backlight unit and is able to reduce flicker by changing a dimming value between frames through a mixed function including a plurality of functions having different characteristics.

Abstract: There is provided a color gamut mapping device capable of fine adjustment configured to map a color signal to a predetermined color gamut by changing the saturation, hue, and luminance of the corresponding color signal, the color gamut mapping device including a hue angle calculation unit configured to calculate a hue angle using saturation components (Cb, Cr) of a YCbCr-type color signal (Y, Cb, Cr); a parameter generation unit configured to generate at least one of a saturation parameter, a luminance parameter, and a hue parameter using the hue angle; and a color signal changing unit configured to change the YCbCr-type color signal (Y, Cb, Cr) to be mapped to a predetermined color gamut using the parameter, wherein the color signal changing unit includes a saturation changing unit configured to calculate a saturation boundary value determined as a boundary of a predetermined rectangle on a Cb-Cr coordinate plane.

Abstract: Disclosed is a display driving device. The display driving device may include: a buffer circuit including a positive output amplifier and a negative output amplifier; a switch circuit including output switches connected in series between the positive output amplifier and a first source output terminal, between the positive output amplifier and a second source output terminal, between the negative output amplifier and the first source output terminal, and between the negative output amplifier and the second source output terminal, respectively; and a reset circuit configured to reset output terminals of the positive output amplifier and the negative output amplifier to a middle voltage immediately before switching of the switch circuit for polarity inversion of the first and second source output terminals.

Abstract: In generating a mask signal to be used when a clock signal embedded in an interface signal is recovered, when a mask rising signal for generating the mask signal is located in a data signal interval and a data signal indicates a high level, the mask signal may be generated in accordance with a falling edge of the data signal other than the mask rising signal.

Abstract: In generating a mask signal used to recover a clock signal embedded in an interface signal, the mask signal may be generated by comparing a plurality of comparison signals, generated by delaying a plurality of mask rising signals by a predetermined time, with the clock signal and selecting one mask rising signal used to generate a comparison signal close to one portion of the clock signal from among the plurality of mask rising signals.

Abstract: A display driving device, which adjusts a brightness of an image on the basis of an ambient illumination even without an increase in amount of power consumption, includes a controller determining a clipping ratio for clipping input image data by using an ambient illumination value when the ambient illumination value is input thereto, a gain calculator calculating a frame gain which is to be applied to the input image data, based on the clipping ratio, an input image clipping unit clipping the input image data by applying the frame gain in the input image data, and a gamma converter gamma-converting clipped input image data to generate output image data.

Abstract: An embodiment provides a display panel drive device that receives image data in a plurality of image reception periods within one frame period and retrains a data link according to link data received in an interval between the image reception periods.

Abstract: Provided are a data communication system for a high speed interface and a data transmission apparatus and a data reception apparatus of the data communication system. The data communication system includes the data transmission apparatus that configures a packet including a command and a plurality of components, determines a run length of data of the packet, and performs encoding, and the data reception apparatus that decodes the data of the encoded packet.

Abstract: In generating a mask signal to be used when a clock signal embedded in an interface signal is recovered, the mask signal may be generated by compensating for a processing delay time occurring in a mask signal generation circuit, thereby reducing the inaccuracy of the mask signal due to the processing delay time.

Abstract: The disclosure provides an image processing device and method capable of removing a halo artifact and increasing contrast enhancement effect when enhancing the contrast of an image. The image processing method includes obtaining a first blurring image by performing interpolation based on a representative value of each of blocks, having a predetermined size, of a previous frame image; obtaining a second blurring image in which boundary information is restored, through a weighted sum of a current frame image and the first blurring image; and performing contrast enhancement on the current frame image by using a difference image between the second blurring image and the current frame image.

Abstract: The present embodiment relates to a technique for speeding up data communication in a display device and provides a technique for transmitting and receiving at least some information using a communication line indicating a clock training state and for automatically optimizing the configuration of an equalizer in a receiving device.

Abstract: In generating a mask signal used to recover a clock signal embedded in an interface signal, the mask signal may be generated by comparing a plurality of comparison signals, generated by delaying a plurality of mask rising signals by a predetermined time, with the clock signal and selecting one mask rising signal used to generate a comparison signal close to one portion of the clock signal from among the plurality of mask rising signals.

Abstract: An embodiment relates to a technology for accelerating data communication in a display device and provides a technology for transmitting and receiving at least some information using a communication line for indicating a clock training state.

Abstract: In generating a mask signal to be used when a clock signal embedded in an interface signal is recovered, the mask signal may be generated by compensating for a processing delay time occurring in a mask signal generation circuit, thereby reducing the inaccuracy of the mask signal due to the processing delay time.