▎ 摘　　要

NOVELTY - The method involves bonding prepared graphene thin layer (5) as n-GaN surface of LED pixel structure of cathode electrode and the display screen back plate (1) is in low temperature to form ohmic contact. The graphene thin layer and a metal connection structure (3) of control circuit is connected to display screen back low temperature bonding. USE - Preparation method of LED micro display. ADVANTAGE - The high temperature damage to the LED micro display is avoided. The extremely high transmittance is ensured in the visible light range. The better current conduction capability and thermal diffusion ability is enhanced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a LED micro display. DESCRIPTION OF DRAWING(S) - The drawing shows a structural view of the LED micro display. Display screen back plate (1) LED pixel structure (2) Metal connection structure (3) Copper substrate (4) Graphene thin layer (5)