Back to results
US 11,694,615 B2Granted
Compensation systems and methods for OLED display degradation
AssigneeIgnis Innovation Inc.
InventorsShuenn-Jiun Tang, Junhu He, Tong Liu, Gabriel Franklin Yano de Sousa
Life of this patent
Estimating the term…
Abstract
What is disclosed are systems and methods for compensating for display OLED degradation. Correction factors k for OLED degradation of each sub-pixel is modelled and tracked based on grey level, temperature, and time, and used to correct image data provided to an OLED display.
Claims20
A method of compensating for degradation in a plurality of pixels of a display panel of a display system, each pixel including a light-emitting device, the method comprising:
- during operation of the display panel, sampling grey level data of image data intended for the plurality of pixels prior to being provided to the display panel, and sampling temperature data corresponding to the plurality of pixels;
- determining updated correction factors for the plurality of pixels as a function of the grey level data and the temperature data for the plurality of pixels;
- and
- applying the updated correction factors for the plurality of pixels to the image data for the plurality of pixels, generating corrected image data for display by the display panel.
1 more element
A system comprising:
- a display panel including a plurality of pixels, each pixel including a light-emitting device;
- a host processing unit configured for:
- storing, for each of the plurality of pixels, a correction factor representing a degradation of the pixel in a memory of the host processing unit;
- during operation of the display panel, sampling grey level data of image data intended for each of the plurality of pixels prior to being provided to the display panel, and temperature data corresponding to each of the plurality of pixels received from the display panel;
- and
- determining an updated correction factor for each of the plurality of pixels as a function of the sampled grey level data and temperature data for each of the plurality of pixels;
- and
- a compensation block for applying the updated correction factor for each of the plurality of pixels to the image data for each of the plurality of pixels, and generating corrected image data for display by the display panel.
5 more elements
Dependencies are inferred from the claim text.