Method for producing a light-emitting diode display and light-emitting diode display
In at least one embodiment, the method is designed for producing a light-emitting diode display ( 1 ). The method comprises the following steps: •A) providing a growth substrate ( 2 ); •B) applying a buffer layer ( 4 ) directly or indirectly onto a substrate surface ( 20 ); •C) producing a plurality of separate growth points ( 45 ) on or at the buffer layer ( 4 ); •D) producing individual radiation-active islands ( 5 ), originating from the growth points ( 45 ), wherein the islands ( 5 ) each comprise an inorganic semiconductor layer sequence ( 50 ) with at least one active zone ( 55 ) and have a mean diameter, when viewed from above onto the substrate surface ( 20 ), between 50 nm and 20 μm inclusive; and •E) connecting the islands ( 5 ) to transistors ( 6 ) for electrically controlling the islands ( 5 ).
1. A light-emitting diode display having:
a carrier having a plurality of transistors, and
a plurality of individual, radiation-active islands,
wherein
each of the islands comprises an inorganic semiconductor layer sequence having at least one active zone,
a mean diameter of the islands, seen in a top view of the carrier, is between 50 nm and 20 μm inclusive,
a mean height of the inorganic semiconductor layer sequence of the islands is at least 1.5 μm,
the islands are electrically interconnected with the transistors, wherein each individual island is electrically conductively connected to precisely one transistor, the islands are electrically controllable individually via the transistors, and the individual islands form micro-pixels of the light-emitting display,
regions between neighboring islands are filled with a filling compound,
the filling compound is divided into a plurality of island-like sections, and
regions between neighboring island-like sections of the filling compound are provided with a reflective filling, which is a metallic filling so that the neighboring island-like sections are optically isolated from one another via the reflective filling.