An image acquisition method. N images of an object to be shot are acquired. The N images are shot by N shooting devices. Shooting fields of view of the N shooting devices are different from each other. The N images are in one-to-one correspondence with the N shooting devices. Feature extraction is performed on the N images to obtain M features of the N images. M is an integer multiple of N. The M features include M/N types of features.

A control device that controls a liquid crystal display device, the control device includes: an obtainer that obtains a first video signal; a determiner that determines a first backlight value as a reference luminance of a backlight of the liquid crystal display device, using a first luminance characteristic of the first video signal; a tone map processor that performs tone mapping on the first video signal based on the first backlight value and a peak luminance displayable by the liquid crystal display device, and outputs a second video signal obtained through the tone mapping; and a generator that generates a control signal for local dimming control on the liquid crystal display device based on the first backlight value and the second video signal, and outputs the control signal to the liquid crystal display device.

A pixel is divided into a first subpixel and a second subpixel. A first data signal is input to a first drive unit that drives a first light-emitting element constituting the first subpixel, and a second data signal is input to a second drive unit that drives a second light-emitting element constituting the second subpixel. A gray scale value of the first data signal is smaller than a gray scale value of the second data signal.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for compensating an image to be shown on a display including an array of light-emitting pixels and a sensor arranged to receive light transmitted by adjacent light-emitting pixels. A method includes collecting, from the sensor, a luminance of light received by the sensor during an emission-on period, and a luminance of light received by the sensor during an emission-off period. The method includes calculating, by comparing the luminance during the emission-on period to the luminance during the emission-off period, a luminance of light internally reflected from the adjacent pixels and received by the sensor during the emission-on period. The method includes determining that an error between the luminance of light internally reflected and a reference luminance equals or exceeds a threshold error, and adjusting a driving voltage for driving the pixels to reduce the error.

A data processing method spoiled to a display apparatus includes, obtaining first image data including first pixel values of pixels; obtaining a brightness control value of each backlight unit according to first pixel values of pixels corresponding to the backlight unit; determining relative positional relationships between a first pixel and at least two first backlight units in a plane perpendicular to a thickness direction of the display apparatus, the first backlight units including a backlight unit corresponding to the first pixel and backlight unit(s) adjacent thereto; determining an optical diffusion coefficient of each first backlight unit at a corresponding position of the first pixel according to the relative positional relationships; and determining a backlight brightness characteristic value of the first pixel according to a brightness control value of each first backlight unit and the optical diffusion coefficient of each first backlight unit at the corresponding position of the first pixel.

A display device and an afterimage compensation method thereof are proposed. The display device and the afterimage compensation method thereof capture an input image frame at a predetermined period, detect an edge area in the captured image frame, detect an afterimage compensation area on the basis of the cumulative count detected as the edge area for each pixel, and perform individual afterimage compensation only on a pixel whose cumulative count detected as the afterimage compensation area is greater than or equal to a predetermined threshold value. Accordingly, the afterimage compensation time may be shortened by individually performing the afterimage compensation according to a condition of each pixel.

A display device includes a display, an illuminance sensor, an IR sensor disposed at a lower side of the display device, a memory to store correction data set by respective reflectance, and a processor. The processor is configured to calculate a reflectance of a floor surface, in an environment in which the display device is arranged, based on a sensing value of the IR sensor, obtain correction data corresponding to the calculated reflectance from stored correction data of the memory, correct an illuminance value sensed by using the illuminance sensor according to the obtained correction data, and control an operation of the display based on the corrected illuminance value.

A head-up display having a display apparatus comprising a picture generating unit comprising a display element for displaying an image and a driver for the display element, an optical unit for projecting the image onto a projection surface, and an image control unit for controlling the display element via the driver. The picture generating unit further comprises an image brightness monitoring device, which has an image signal input connected to an image signal output of the image control unit and has a signal output connected to a signal input of the display element.

This application discloses a method for adjusting image luminance performed at an electronic device. The method includes: determining a target pixel with original luminance lower than a luminance threshold in an original image, the luminance threshold being determined according to luminance of pixels in the original image; obtaining a luminance distribution intensity of pixels adjacent to the target pixel; determining a difference between the luminance threshold and the luminance distribution intensity of the adjacent pixels; and adjusting the target pixel to corresponding target luminance according to the difference and the original luminance of the target pixel. According to this application, a changing characteristic of relative luminance between the target pixel and the adjacent pixel is reserved. The luminance adjustment is more consistent with the luminance propagation of the original image, thereby achieving a technical effect of improving an adjustment effect of luminance adjustment on an image.

The invention discloses a driving method and a device for a light-emitting element. The method includes: acquiring a display image; calculating a backlight brightness required for the display image; and selecting at least one pulse signal from the preset plurality of pulse signals to drive the light emitting element according to the backlight brightness.