Abstract:
A method for compensation of liquid crystal display response variations in high brightness fields, comprising receiving an image signal having a set of initial liquid crystal display code values for a region, estimating individual backlight power levels for the region of the image signal, determining a combined backlight power level based on the individual backlight power levels of the region, determining at least one change in transmittance based on the combined backlight power level of the region and correcting the set of initial liquid crystal display code values based in the determined at least one change in transmittance.
Abstract:
Embodiments provide for a graphics processing apparatus comprising a graphics processing unit including color conversion logic to convert from a first color to a second color using a non-uniformly sampled multi-dimensional lookup table. In one embodiment, the graphics processing logic additionally includes lookup table generation logic to generate the non-uniformly sampled multi-dimensional lookup table, where the lookup table logic includes a color transform unit to transform color data for a pixel from the first color to the second color, a sampling point unit to compute a set of non-uniform sampling points in the first color, and a lookup table sampler unit to generate the multi-dimensional lookup table for the second color using the non-uniform sampling points in the first color.
Abstract:
Techniques for implementing aging compensation for a display are described. An example of an electronic device includes a display comprising pixels, each pixel comprising one or more Light Emitting Diodes (LEDs). The electronic device also includes a display aging compensation unit to receive input frame data corresponding to content to be displayed, adjust the input frame data to generate output frame data based on a degree of aging of the LEDs, and send the output frame data to the display. The electronic device also includes a display aging monitoring and compensation processing unit to accumulate aging data that describes the degree of aging of the LEDs. The aging data is to be accumulated by sampling the output frame data at a sampling rate that varies depending on a type of the content to be displayed.
Abstract:
The description relates to improving image quality of light emitting diode (LED) displays. Image degradation due to operational ageing, screen burn-in and different ageing speeds of different colours are addressed. One example includes a display, a processor, storage (224), and a pixel run time counter (228). The display can include a set of multiple pixels. Individual pixels can include multiple colour light emitting diodes (LEDs). The processor can be configured to convert image related data (402) into frame renderings for driving the multiple pixels of the display and the storage (224) can be accessible by the processor. The pixel run time counter (228) can be configured to store pixel information for a subset of individual pixels relative to individual frame renderings on the storage. The pixel run time counter may select pixel information to be stored depending on pixel changes between consecutive frames (404). The stored pixel information from multiple subsets of individual pixels of the frame renderings can collectively reflect time and intensity parameters that the frame renderings have driven the set of pixels.