Flexible color filter and manufacturing method thereof, full-color micro light-emitting diode device

A full-color micro light-emitting diode device, comprising light sources and a color filter, wherein the color filter comprises:

• a polymer resin substrate, extending in a first direction and comprising a first surface and a second surface opposite in a second direction different from the first direction, wherein the polymer resin substrate is disposed with a plurality of receiving grooves and the receiving grooves are recessed from the first surface toward the second surface and arranged at intervals in the first direction;
• a light diffusion layer, extending along an inner side wall of each of the receiving grooves in the second direction;
• and
• a quantum dot layer, comprising at least one of a green light quantum dot layer or a red light quantum dot layer disposed above a first bottom surface of at least one receiving groove of the receiving grooves, wherein each of the green light quantum dot layer and the red light quantum dot layer has a third surface and a fourth surface opposite in the second direction and the fourth surface is closer to the polymer resin substrate than the third surface in the second direction,
• wherein a first cavity is formed between the third surface of at least one of the green light quantum dot layer or the red light quantum dot layer and the first surface, and
• wherein the light sources are received in the plurality of receiving grooves, respectively.