A display device includes a display panel which displays an image, and a panel driving block which receives a control signal and generating a criterion point signal including information about a criterion point for adjusting luminance of the image based on the control signal. The panel driving block receives image signals, generates a correction value based on distance information about a location of the display panel, at which each of the image signals is displayed, and the criterion point, and generates correction image signals by converting the image signals based on the correction value.

Provided is a display device for providing a constant brightness for each area by including an area sensing part configured to determine a position value of an input image in the display device, and determine an area range according to the position value to output an area value, a gradation value determining part configured to output a first gradation value corresponding to a brightness of the input image according to the area value, a control part configured to output a corrected gradation value corresponding to the first gradation value, and a display part configured to display a corrected image having the corrected brightness corresponding to the corrected gradation value.

A display compensation method and device, and a display panel are disclosed. The display panel includes a plurality of pixel units each including a plurality of subpixels. The display compensation method includes obtaining original grayscale values of sub-images included in a pending image corresponding to the pixel units, and determining the sub-images whose original grayscale value is less than or equal to a grayscale threshold value as a target sub-image. The target sub-image is displayed through each of the subpixels of a target pixel unit corresponding to the target sub-image, and each of the subpixels of the target pixel unit has a grayscale value equal to a grayscale value of the target sub-image.

To enable better color and in particular color saturation control for HDR image handling systems which need to do luminance dynamic range conversion, e.g. from a SDR image to an image optimized for rendering on a display of higher display peak brightness and dynamic range, the inventors invented an apparatus (400) for processing a color saturation (C′bL, C′rL) of an input color (Y′L, C′bL, C′rL) of an input image (Im_RLDR) to yield an output color (Y′M, Cb′M, Cr′M) of an output image (Im3000nit) corresponding to the input image, which output image is a re-grading of the input image characterized by the fact that its pixel colors have a different normalized luminance position (Y2) compared to the normalized luminance positions of the input colors (Y1), the normalized luminances being defined as the luminance of a pixel divided by the respective maximal codeable luminance of the image's luminance representation, whereby the ratio of the maximum codeable luminance of the input image and the maximum codeable luminance of the output image is at least 4 or larger, or ¼.sup.th or smaller, the apparatus comprising: a receiver (206) arranged to receive a luminance mapping function (F_L_s2h) defining a mapping between the luminance of the input color (Y′L) and a reference luminance (L′_HDR), and an initial saturation processing function (F_sat) defining saturation boost values (b) for different values of the luminance of the input color (Y′L); a display tuning unit (1009) arranged to calculate a display tuned luminance mapping function (F_L_da) based on the luminance mapping function (F_L_s2h) and at least one of a display peak brightness (PB_D) and a minimum discernable black (MB_D); a luminance processor (401) arranged to apply the display tuned luminance mapping function (F_L_da) to determine an output luminance (Y′M) from the input luminance (Y′L) of the input color; and a saturation processing unit (410, 411), arranged to map the input color saturation (C′bL, C′rL) to the color saturation (Cb′M, Cr′M) of the output color on the basis of a saturation processing strategy which specifies saturation multipliers for the normalized luminance values (Y_norm); characterized in that the apparatus further comprises a saturation factor determination unit (402) arranged to calculate a final saturation processing strategy (b; Bcorr) based on the initial saturation processing strategy (F_sat) and based on a secondary luminance value (Y′_H) which is derivable from the output luminance (Y′M) by applying a luminance mapping function (F_M2H) based on the luminance mapping function (F_L_s2h), and whe

The present disclosure provides a display device that includes a preprocessor, a controller, and a display panel. The preprocessor includes an area determiner outputting area data, a modulator outputting modulated data, and a synthesizer converting first image data and outputting second image data including the area data and the modulated data.

An information processing apparatus (20) according to the present disclosure includes a control unit (230). When a display image is displayed on a transmissive display in which real space is visually recognizable, a control unit (230) detects, from the display image, a transparent area through which the real space is seen. The control unit (230) corrects pixel values of at least a part of an area in the transparent area of the display image.

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

The present disclosure relates to a method, a computer program comprising instructions and an apparatus for controlling the image reproduction of a display apparatus. The disclosure furthermore relates to a display apparatus in which a method according to the disclosure is realized. In a first step, the display apparatus is switched from a first operating mode with emission into a large field of view to a second operating mode with emission into a restricted field of view. Moreover, parameters are acquired which influence a contrast of the image reproduction that is perceivable by an observer situated outside the restricted field of view. A contrast for the image reproduction is adapted on the basis of the acquired parameters. Optionally, the image reproduction of the display apparatus can be interrupted if an impermissible head position of the observer is ascertained.

A display device includes a display panel having first and second display areas. A data driver provides data and bias voltages to data lines. A timing controller controls the data driver and a scan driver based on at least two operation modes. The first mode drives the first and second display areas at a normal frequency, and the second mode drives the first display area at a first frequency substantially equal to or lower than the normal frequency and the second display area at a second frequency lower than the first frequency. The second mode includes an active frame to write a reference voltage to display a black image in the second display area, and blank frames to maintain the reference voltage and apply the bias voltage to the pixels in the second display area. The data driver varies the bias voltage in the blank frames.

To provide a video projector which improves visibility in response to changes in projection environment, a video projector has an initial level setter, a level adjuster, a projection display, an image capture, and a projection histogram calculator. The initial level setter performs a prescribed initial level setting on an input video signal and outputs an initial display signal. The level adjuster adjusts the level of the initial display signal on the basis of a projection image and outputs a display signal. The image capture captures the projection image projected on a projection surface by the projection display based on the display signal. The projection histogram calculator prepares a projection histogram for each color. The level adjuster adjusts the level of the initial display signal for each color on the basis of the projection histogram.