Micro light-emitting diode, micro light-emitting element and preparation method therefor, and display device

Abstract

A micro light-emitting element includes a substrate and at least one micro light-emitting diode. Each micro light-emitting diode includes a semiconductor epitaxial stacked layer, which includes a first-type semiconductor layer, an active layer and a second-type semiconductor layer, and comprises a first surface and a second surface; the first surface is located on a side near the first-type semiconductor layer, the second surface is located on a side near the second-type semiconductor layer, and the first surface faces towards the substrate; and an adhesive film layer, which is located between the substrate and the semiconductor epitaxial stacked layer. An etching protective layer is disposed between the adhesive film layer and the first surface. The micro light-emitting element can reduce damage to the semiconductor epitaxial stacked layer during a residual adhesive removing process after laser lifting-off of each micro light-emitting diode, thus improving reliability of the micro light-emitting element.

Dependencies are inferred from the claim text.