Patent classifications
G09G2360/16
IMAGE PROCESSING DEVICE
An image processing device generates backlight data from input image data to control outputs of a plurality of light-emitting regions; corrects the backlight data; generates luminance distribution data for the backlight from the backlight data that is corrected; generates second panel data from an input image data to control aperture ratios of a plurality of pixels; corrects the second panel data; generates luminance distribution data for the second liquid crystal panel from the second panel data that is corrected and the luminance distribution data for the backlight; and generates first panel data from the input image data and the luminance distribution data for the second liquid crystal panel to control aperture ratios of a plurality of picture elements.
Display device and driving method therefor
A display device is disclosed. The display device comprises: a display including a plurality of display modules; a display driving unit including a plurality of driving modules connected to each of the plurality of display modules; a storage for storing current control information according to the luminance of a display device; and a processor for calculating the maximum power amount available in each of the plurality of display modules on the basis of the entire power capacity, which can be provided by the plurality of driving modules, and of the individual power consumption amount of each of the plurality of display modules, calculating a peak luminance level of each of the plurality of display modules on the basis of the calculated maximum power amount, and controlling, on the basis of the current control information, the plurality of driving modules such that each of the plurality of display modules has the corresponding peak luminance level.
Image display processing method and device, display device and non-volatile storage medium
An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit and a display panel, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming mode, and the image display processing method includes: obtaining initial backlight data of each of the plurality of backlight blocks corresponding to a display image; performing a peak driving process on the initial backlight data of each of the plurality of backlight blocks by a graphics processing unit to obtain adjusted backlight data of each of the plurality of backlight blocks; and providing the adjusted backlight data to the backlight unit by the graphics processing unit so that the display panel displays the display image.
Electronic device for controlling voltage slew rate of source driver on basis of luminance
Disclosed is an electronic device including a display panel displaying an image, a source driver supplying a source voltage to the display panel, and a display driver integrated circuit (DDI) including a timing controller controlling the source driver. The timing controller may be configured to identify information associated with a luminance of the image and to set a source bias current for controlling a slew rate of the source voltage based on the luminance of the image. Besides, various embodiments as understood from the specification are also possible.
Display device and method of preventing afterimage thereof
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.
Display device performing still image detection, and method of detecting a still image in a display device
A display device includes a display panel including a plurality of pixels, and a panel driver including N registers, where N is an integer greater than 1. The panel driver is configured to divide the display panel into N first detection regions, to perform a first still image detection operation on each of the N first detection regions by using the N registers, to divide the display panel into N second detection regions different from the N first detection regions by using a result of the first still image detection operation, and to perform a second still image detection operation on each of the N second detection regions by using the N registers.
Light field near-eye display and method thereof for generating virtual reality images
A method for generating virtual reality images and used in a light field near-eye display includes steps of: calculating a compensation mask according to a simulated image and superimposing the compensation mask on a target image to generate a superimposed target image, wherein brightness distributions of the simulated image and the compensation mask are opposite to each other; and shifting a display image according to a change vector of a plurality of eye movement parameters, wherein the display image is converted from the superimposed target image. The light field near-eye display is also provided. In this way, the light field near-eye display for generating virtual reality images and the method thereof can achieve the purpose of improving the uniformity of the image and expanding the eye box size.
Techniques to compensate for flicker at low refresh rates
Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.
DISPLAY ASSEMBLY, DISPLAY DEVICE AND DRIVING METHOD FOR DISPLAY ASSEMBLY
A display assembly, a display device and a driving method for the display assembly are provided. The display assembly includes: a dimming array (10) and a pixel array (20) stacked together; wherein the dimming array (10) includes a plurality of dimming units (101) arranged in an array; the pixel array (20) includes a plurality of pixel units (201) arranged in an array; each dimming unit (101) corresponds to at least one pixel unit (201), and different dimming units (101) correspond to different pixel units (201), respectively. The display assembly further includes: a first driver chip (102) configured to drive the dimming array (10). The number of output channels of the first driver chip (102) is equal to the number of columns of dimming units (101) in the dimming array (10), and each output channel of the first driver chip (102) is connected to one column of dimming units (101).
METHOD FOR OPERATING DISPLAY DEVICE
A display device in which a pixel defect is less likely to be perceived is provided. The display device includes a display portion where pixels are arranged in a matrix, and a sensor portion including a photoelectric conversion element. First, the display portion is divided into a first region and a second region. Next, first light is emitted from the pixel included in the first region, and the luminance of the first light is detected by the photoelectric conversion element. Moreover, second light is emitted from the pixel included in the second region, and the luminance of the second light is detected by the photoelectric conversion element. Then, the luminance of the first light is compared to the luminance of the second light, and on the basis of the comparison result, one of the first region and the second region is divided into a third region and a fourth region. By repeating these operations, a defective pixel is detected. Luminance represented by image data can be corrected on the basis of the detection result of the defective pixel.