Patent ID: 11887899
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 4:
5. The repairing method of claim 1, wherein the step of “transferring a plurality of main micro-LED chips to the substrate by a fluid mass transfer method, so that the main recess in each of the sub-pixel areas is loaded with one of the main micro-LED chips” comprises steps of: filling all of the main recesses and all of the backup recesses with positive photoresists; providing a first photomask, wherein the first photomask is provided with a plurality of first through holes, the plurality of first through holes are respectively provided corresponding to all of the main recesses, and a shape and a size of each of the first through holes are adapted to a cross-sectional shape and a cross-sectional size of the corresponding main recess; covering a side of the substrate provided with the main recess using the first photomask; performing exposure and development on the positive photoresists in all of the main recesses to remove the positive photoresists in all of the main recesses; removing the first photomask; and providing a main suspension containing the plurality of the main micro-LED chips so that the main suspension flows through the side of the substrate provided with the main recess, so that each of the main recesses is loaded with one of the main micro-LED chips.