Method and system for correcting uniformity of projection display color
A technology for uniform color and projection display, applied in static indicators, cathode ray tube indicators, color signal processing circuits, etc., can solve problems such as uneven color of projectors, achieve improved picture quality, accurate data, and improved unevenness distribution effect
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[0016] The color uniformity correction method of projection display is to divide the display screen into n1×n2 correction areas on average, there are (n1+1)×(n2+1) correction points, and the red, green and blue brightness changes of each correction point It is realized by adjusting the value of the register in the (n1+1)×(n2+1) matrix corresponding to the three colors in the circuit: it is to divide the 4:3 display screen into 32×24 or 16×12 corrections There are 33×25 or 17×13 calibration points, and the red, green, and blue brightness changes of each calibration point are adjusted by adjusting the value of the register in the 33×25 or 17×13 matrix corresponding to the three colors in the circuit to realise.
[0017] The so-called dividing the display screen into n1×n2 correction areas on average means that the correction values of red, green and blue in the correction areas are determined by linear interpolation of the correction values of the surrounding correction poin...
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