Patent ID: 11923398
Assignee: LUMILEDS, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A light emitting diode (LED) array comprising:
a first mesa comprising a top surface, at least a first LED including a first p-type layer, a first n-type layer and a first color active region and a first tunnel junction on the first LED, the top surface of the first mesa comprising a second n-type layer on the first tunnel junction;
an adjacent mesa comprising a top surface, the first LED, a second LED including the second n-type layer, a second p-type layer, and a second color active region;
a second tunnel junction on the second LED of the adjacent mesa, and a third n-type layer on the second tunnel junction of the adjacent mesa;
a first trench separating the first mesa and the adjacent mesa;
first cathode metallization layer in the first trench, the first cathode metallization layer extending continuously from and in electrical contact with the first color active region and the second color active region of the adjacent mesa;
anode metallization contacts on the second n-type layer of the first mesa and on the top surface of the adjacent mesa; and
a thin film transistor (TFT) driver comprising a driving transistor having a first electrode connected to a VDD line and a second electrode, a capacitor being connected to the second electrode of the driving transistor and a first electrode being connected to a selecting transistor, and the selecting transistor having the first electrode and a second electrode, the second electrode of the selecting transistor being connected to a data line, wherein the selecting transistor is configured to be controlled by a select line, wherein the second electrode of the driving transistor is connected to one of the anode metallization contacts.