Color converter and display

The color converter comprises a color conversion layer, and the color conversion layer comprises a light source area, a first pixel unit, a second pixel unit, a third pixel unit and a blue light reflecting layer. The light source area is used for generating initial light; the first pixel units are used for performing full projection when the initial light is blue light, or converting the initial light into blue light when the initial light is not blue light; the second pixel unit is used for converting the initial light into green light; the third pixel unit is used for converting the initial light into red light; the first pixel unit and the second pixel unit are separated by a total reflection layer, and the second pixel unit and the third pixel unit are separated by a total reflection layer. According to the invention, a Fabry-Perot resonance principle is utilized, the reflecting layer is arranged in the color conversion layer, and the reflectivity and interlayer thickness of the reflecting layer are reaso