Apple is eyeing ways to beef up the color correction on its electronic displays. A patent (number 20110032275) for color correction of electronic displays utilizing gain controls has appeared at the US Patent & Trademark Office. It generally relates to display correction and, more specifically, to correcting the displayed color by reducing its dependency on various variables, such as temperature.
A video-rendering chip performs gain correction on received display input, based on a display temperature, to produce output values that are shown on the display. The video-rendering chip includes multipliers, a microprocessor, and a memory. The microprocessor receives a display temperature from a sensor, determines gain correction coefficients that correspond to the display temperature, and provides the correction coefficients to the multipliers. The multipliers then multiply the display input by the correction coefficients to produce the output values. The microprocessor may...| Read more »