Patent ID: 8557619

Claim:
A method of manufacturing Light Emitting Diode (LED) display, the method comprising: (a) forming an LED device layer in a sacrificial substrate; (b) etching the LED device layer to manufacture at least two or more LED devices patterned; (c) selectively removing the sacrificial substrate in a lower side of the LED device; (d) stacking a passivation layer on two or more LED devices to be not removed, which the passivation layer is stacked to the side surface of an LED device requiring no separation, and a part of the passivation layer is formed directly on the sacrificial substrate; (e) connecting a stamping processor to the LED devices not screened by the passivation layer, disconnecting the stamping processor, and selectively separating the LED device from the sacrificial substrate by performing an anisotropic etching process, wherein in the anisotropic etching process, a part of the sacrificial substrate is removed in a lower side of a LED device of a region on which the passivation layer is not stacked; (f) transferring the LED device, which is attached to the stamping processor, to a receiving substrate; and (g) removing a part of the passivation layer to selectively separate another LED devices from the sacrificial substrate, and repeating the (e) process at least once; wherein LED devices at an interval manufactured in the sacrificial substrate is transferred to the LED display in a relationship by integer times than the interval.