Abstract: Provided are a display device and an operating method thereof. The display device includes a liquid crystal display panel, a backlight unit including a plurality of light sources for supplying light to the liquid crystal display panel and driven in a state of being divided into a plurality of blocks corresponding to the number of the light sources, and a backlight dimming controller configured to calculate dimming values of the plurality of blocks. The backlight dimming controller is configured to divide each of the plurality of blocks into a plurality of unit blocks and control brightness of an output image differently for each of the unit blocks.

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate a source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

Abstract: Provided is a display device including a communication device for receiving an input image containing a first frame and a second frame, an image quality controller for performing a first image quality control on at least a portion of the first frame, and a gain generator for calculating a gain of the second frame based on the first frame where the first image quality control has been performed, wherein the image quality controller performs a second image quality control applied with the gain for at least a portion of the second frame.

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate a source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

Abstract: The present invention relates to a display device which changes the quality of displayed images in real time according to the genres of the images, the display device comprising: a storage unit which stores picture quality according to the genres of images; a display unit which displays an image corresponding to an input image signal; and a control unit which acquires the genre of an image and changes the quality of the image to the picture quality corresponding to the genre.

Abstract: A display device according to an embodiment of the present application comprises a storage configured to store gamut mapping data, a controller configured to, when an image signal is input, convert the input image signal into an output signal based on the gamut mapping data, and a display configured to display an image based on the output signal, wherein the controller changes the gamut mapping data according to the input image signal.

Abstract: The present disclosure relates to a display device which displays an image with optimal picture quality according to genre. The display device may comprise: a control unit which determines the genre of an image; and a display unit which displays the image, the picture quality of which is adjusted according to the genre determined by the control unit, wherein the control unit may analyze an input image and classify the genre thereof, and revise the classified genre on the basis of a current scene.

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate an source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

Abstract: A display device includes a display configured to display an image and a controller configured to reduce a blue component in the image when an execution command of a blue light reduction function is received. The controller may detect a preset part or color and perform control such that an amount of reduction of a blue component of an area corresponding to the detected part or color is different from that of the remaining area.

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate a source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

Abstract: A display device includes a display configured to display an image and a controller configured to reduce a blue component in the image when an execution command of a blue light reduction function is received. The controller may detect a preset part or color and perform control such that an amount of reduction of a blue component of an area corresponding to the detected part or color is different from that of the remaining area.

Abstract: A display device according to an embodiment of the present application comprises a storage configured to store gamut mapping data, a controller configured to, when an image signal is input, convert the input image signal into an output signal based on the gamut mapping data, and a display configured to display an image based on the output signal, wherein the controller changes the gamut mapping data according to the input image signal.

Abstract: A tone mapping apparatus includes a dynamic tone mapping module configured to generate a first tone mapping curve based on a luminance distribution histogram of input image data and generate first image data from the input image data using the first tone mapping curve, and a processor configured to generate an RGB distribution histogram, a detail region histogram and a high-luminance region histogram based on pixel information of the first image data, generate a second tone mapping curve using the RGB distribution histogram, the detail region histogram and the high-luminance region histogram and generate output image data from the first image data using the second tone mapping curve.

Abstract: A display device according to an embodiment of the disclosure comprises: a linear gamut mapping unit for deriving a linear gamut mapping result for matching a gamut of an input image signal to a target display gamut; a non-linear gamut mapping unit for deriving a non-linear gamut mapping result for matching the gamut of the input image signal to the target display gamut; and a mixing unit for generating an output image signal by mixing the linear gamut mapping result and the non-linear gamut mapping result. The disclosure may provide an optimal gamut mapping result that is intended by a user and an originator.

Abstract: The present invention relates to a display device which changes the quality of displayed images in real time according to the genres of the images, the display device comprising: a storage unit which stores picture quality according to the genres of images; a display unit which displays an image corresponding to an input image signal; and a control unit which acquires the genre of an image and changes the quality of the image to the picture quality corresponding to the genre.

Abstract: A tone mapping apparatus includes a dynamic tone mapping module configured to generate a first tone mapping curve based on a luminance distribution histogram of input image data and generate first image data from the input image data using the first tone mapping curve, and a processor configured to generate an RGB distribution histogram, a detail region histogram and a high-luminance region histogram based on pixel information of the first image data, generate a second tone mapping curve using the RGB distribution histogram, the detail region histogram and the high-luminance region histogram and generate output image data from the first image data using the second tone mapping curve.

Abstract: Disclosed are a signal processing device and an image display apparatus including the same. The signal processing device of an embodiment of the present disclosure includes: a quality calculator configured to calculate an source quality of an image signal received from an external settop box or a network; an image quality setter configured to set an image quality of the image signal based on the calculated source quality; and an image quality processor configured to perform image quality processing on the image signal based on the set image quality, wherein in response to the source quality of the received image signal being changed at a first time point, the image quality setter changes an image quality setting sequentially from a first setting to a second setting; and based on the image quality setting, the image quality processor performs image quality processing. Accordingly, flicker may be reduced when an image quality is changed due to a change in the source quality of the received image signal.

Abstract: Disclosed is a signal processing device and an image display apparatus including the same. The signal processing device includes: a quality calculator configured to compare a previous frame image and at least a region of a current frame image, and calculate image type information based on a comparison result; an image quality setting unit configured to set an image quality based on the image type information; and an image quality processing unit configured to perform image quality processing according to the set image quality. Accordingly, it is possible to improve accuracy of image analysis and perform image quality processing according thereto.

Abstract: Provided are a display device and an operating method thereof. The display device includes a liquid crystal display panel, a backlight unit including a plurality of light sources for supplying light to the liquid crystal display panel and driven in a state of being divided into a plurality of blocks corresponding to the number of the light sources, and a backlight dimming controller configured to calculate dimming values of the plurality of blocks. The backlight dimming controller is configured to divide each of the plurality of blocks into a plurality of unit blocks and control brightness of an output image differently for each of the unit blocks.

Abstract: The present invention relates to a liquid crystal display device that provides improved local dimming. The liquid crystal display device includes: a liquid crystal display panel; a backlight unit divided and driven into a plurality of blocks and supplying light to the liquid crystal display panel; a local dimming value calculator calculating a dimming value of each of the blocks in accordance with input image data; and a backlight dimming controller having a pixel corrector correcting image data on the basis of the dimming values, in which the backlight dimming controller can correct at least some of the dimming values of the blocks calculated by the local dimming value calculator.