Preparation method for quantum dot layer, QLED (quantum dots light emitting diode displays) display apparatus containing quantum dot layer, and preparation method for QLED display apparatus

The invention relates to a preparation method for a quantum dot layer, a QLED (quantum dots light emitting diode displays) display apparatus containing the quantum dot layer, and a preparation method for the QLED display apparatus. The preparation method for the quantum dot layer comprises the steps of paving a positive electrode alumina template on a substrate; dispersing the quantum dots in the positive electrode alumina template in a scattering manner; and removing the positive electrode alumina template to obtain the quantum dot layer. The quantum dots in the quantum dot layer are luminous uniformly; and the luminance and the service life of the quantum dots are both effectively improved, so that the luminous efficiency of the QLED display apparatus containing the quantum dot layer is obviously improved.