Pixel unit, display panel and display device

A pixel unit, comprising:

• a substrate,
• a first light emitting device, a second light emitting device and a third light emitting device on the substrate, wherein
• the first light emitting device is configured to emit light of a first color, the second light emitting device is configured to emit light of a second color, the third light emitting device is configured to emit light of a third color, the light of the first color comprises red light, the light of the second color comprises green light, and the light of the third color comprises blue light, and
• a degree of attenuation of the light of the first color caused by a microcavity effect of the first light emitting device and a degree of attenuation of the light of the second color caused by a microcavity effect of the second light emitting device are smaller than a degree of attenuation of the light of the third color caused by a microcavity effect of the third light emitting device, and
• a light absorbing layer comprising at least one of a first light absorbing member at a light exiting side of the first light emitting device and a second light absorbing member at a light exiting side of the second light emitting device, wherein
• a material of the first light absorbing member comprises N,N′-BIS(1-HEXYLHEPTYL)-PERYLENE-3,4:9,10-BIS(DICARBOXIMIDE), a material of the second light absorbing member comprises 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran, the first light absorbing member is configured to absorb a portion of the light of the first color and the second light absorbing member is configured to absorb a portion of the light of the second color, an orthographic projection of the first light absorbing member on the substrate at least partially coincides with both an orthographic projection of the first light emitting device on the substrate and an orthographic projection of the second light emitting device on the substrate, and an orthographic projection of the second light absorbing member on the substrate at least partially coincides with both the orthographic projection of the first light emitting device on the substrate and the orthographic projection of the second light emitting device on the substrate.