The invention relates to a full-color
display device based on
quantum dots and a manufacturing method thereof. In the device structure, a
black glass substrate is used as a substrate, and a
blue light LED
chip is arranged on the
black glass substrate; the color conversion layer is composed of a
black glass matrix containing through holes, a bottom insulating layer, a
quantum dot film and a top reflecting mirror, the
quantum dot film contains quantum dots with protective
layers, and the protective
layers are provided with ligands containing photosensitive groups and cross-linking agents matched with the protective
layers. And each through hole only contains one type of quantum dots, so that
energy loss can be reduced, and
color purity can be improved. The pixel points are composed of a plurality of through holes, black glass between the pixel points is thicker than black glass between the through holes, and
crosstalk is reduced. During manufacturing, the photo-crosslinkable
quantum dot solution is prepared firstly, then the
blue light LED
chip and the bottom insulating layer are manufactured on the substrate, the black glass substrate is attached, the
quantum dot solution is filled and photo-cured, and finally the top reflecting mirror is formed. The method is flexible and adjustable in process, and the
color purity, brightness and stability of the
display device can be improved.