This was an image I took during the evening time on the led tv , I had two questions the first was why was the tv giving off a x pattern of the diffracted light which constitutes primary white light color? While as mirror doesn't do this. But I learnt about this "diffraction grating" in another stack question.
But my second question is , why is the mainly yellow light from the sun as due to Rayleigh scattering make the same x with the primary color distribution rather than having more red-orange colors. Some unwanted wavelength of light could have crept in but the majority is yellow right ? Am I missing something here ?
top left light is from sun through the window the center light is from the phone's flash