OLED and LCD screens have color filters. So color filters produce heat but... Is it possible to use thin PV cell as color filter of those displays and produce electricity and to reduce heat energy for extend display lifetime ?? Actually I had a concentration to acceptor (of semiconductor) gape energy of PV cell for color filter. Thanks.
I thought about it for vertical stacked( not horizontally) pixels that every layer(R/G/B) has screen size thin PV cell of perfect acceptor -energy gape as color filter and to recover energy. Those thin PV cells could also help to recharge phone cell from sunlight and from visible light(from other sources) of perfect wavelengths.