RGB televisions and computer monitors have red, green, and blue pixels. Why don't they have yellow pixels?

Question

Quizplus · Accepted Answer

Red and green light can be combined in various proportions to produce a spectrum of colors, including yellow. This is based on the principle of additive color mixing, where the perception of different colors can be achieved by varying the intensity of red, green, and blue light. Yellow is perceived when red and green lights are mixed together, making additional yellow pixels unnecessary for creating the perception of yellow on screens.

RGB Televisions and Computer Monitors Have Red, Green, and Blue