An afterimage compensation device includes: an afterimage area detector to receive an input image, and detect an afterimage area including an afterimage in the input image; an afterimage area corrector to detect a false detection area, and generate a corrected afterimage area, the false detection area being a part of a general area that is not detected as the afterimage area and surrounded in a plurality of directions by the detected afterimage area; and a compensation data generator to adjust a luminance of the corrected afterimage area to generate compensation data.

Disclosed are methods for compensating colors based on virtual chromaticity coordinate points and the related display devices. The present disclosure provides an electronic device. The electronic device comprises: a display comprising an array of pixels and a control circuit electrically connected to the display. Pixels in the array comprise a plurality of first sub-pixels defining a first color area on a chromaticity plane, a plurality of second sub-pixels defining a second color area on the chromaticity plane, and a plurality of third sub-pixels defining a third color area on the chromaticity plane. The control circuit is configured to receive an input image signal and generate a control signal to the display for driving each pixel of the display to output light in a virtual color gamut. The virtual color gamut of the display is among the first, second and third color areas on the chromaticity plane and does not overlap any of the first, second or third color areas.

A display device includes a display panel including a plurality of pixels for displaying an image, and a panel controller configured to receive image signals and convert the image signals into correction image signals. The panel controller includes a first circuit to accumulate the correction image signals each frame period and generate degradation data based on the accumulated correction image signals, and a second circuit configured to determine reference data from the degradation data and generate the correction image signals by correcting the image signals to have a target luminance that is changed based on the reference data.

A control circuit configured to control a display panel includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit and the fingerprint sensing circuit, is configured to detect a finger touch on the display panel, determine a position of the display panel on which the finger touch is detected, and send information associated with the position to the fingerprint sensing circuit. The fingerprint sensing circuit is configured to perform fingerprint sensing on at least one zone corresponding to the position and receive fingerprint image signals from the at least one zone correspondingly.

Provided is a display panel, a source driver that generates a gradation voltage signal based on an image data signal, a timing controller that supplies the image data signal to the source driver, and an illumination drive unit that controls an amount of light of a backlight that illuminates each of a plurality of areas formed by dividing a display screen in the display panel. The source driver or the timing controller calculates feature values of the image data signal corresponding to each of the plurality of areas of the display panel and supplies a dimming data signal representing the amount of light of the backlight according to the feature values of each area to the illumination drive unit. The illumination drive unit controls the amount of light of the backlight for each of the plurality of areas based on the dimming data signal.

An image processing device for a projection system includes an image generation unit and a brightness acquisition unit, and the image generation unit generates data for projecting the specific image, as a first portion in the first data for display, which corresponds to the first superimposed region, generates a second portion in the first data for display, which corresponds to the first non-superimposed region based on first input image data in the data of the projection target image, which corresponds to the first non-superimposed region, and the second brightness, and generates a third portion in the second data for display, which corresponds to the second superimposed region based on second input image data in the data of the projection target image, which corresponds to the second superimposed region, and the first brightness.

A backlight driving device and an operating method thereof are provided to drive multiple backlight zones of a backlight panel. The backlight driving device includes an interface circuit and a driving circuit. The interface circuit receives main backlight data corresponding to a first backlight zone from a former stage device. The driving circuit drives the first backlight zone according to a main current level in a display refresh period of a backlight frame period, does not drive the first backlight zone in a demotion blur period which is prior to the display refresh period, and drives the first backlight zone according to a compensation current level in a vertical blanking period which succeeds the display refresh period. The driving circuit determines the main current level according to the main backlight data, and the compensation current level is lower than the main current level.

A display device includes: a display panel including a first display area and a second display area; and a panel driving block which provides, to the first display area, a first data signal generated by converting a first image signal, which corresponds to the first display area, based on a first reference color coordinates in a color space, and provides, to the second display area, a second data signal generated by converting a second image signal, which corresponds to the second display area, based on second reference color coordinates in the color space. The second reference color coordinates are color coordinates obtained by shifting the first reference color coordinates in the color space.

A display device includes a display unit including a plurality of pixels coupled to a plurality of data lines, a plurality of scan lines, and a plurality of emission control lines, a controller for determining a width of a gate-off section of an emission control signal, which corresponds to a non-emission section of each of a plurality of frames belonging to a dimming period, in response to a dimming signal, and an emission driver for supplying the emission control signal in units of a plurality of consecutive pixel rows through the plurality of emission control lines.

Disclosed is a display method of a display panel. The display panel includes two display screens arranged opposite to each other, and the display method of the display panel includes: acquiring a liquid crystal response duration of each display screen upon receiving image information to be displayed; taking a display screen having a shorter liquid crystal response duration as a first display screen, and taking a display screen having a longer liquid crystal response duration as a second display screen; and driving the second display screen to display, and delaying to drive the first display screen to display. A display device and a display panel are also disclosed. The display panel of the present application has a good display effect.