Inorganic light‐emitting diode displays using micro‐transfer printing. Issue 10 (8th December 2017)

• Record Type: Journal Article
• Authors: Cok, Ronald S.; Meitl, Matthew; Rotzoll, Robert; Melnik, George; Fecioru, Alin; Trindade, Antonio Jose; Raymond, Brook; Bonafede, Salvatore; Gomez, David; Moore, Tanya; Prevatte, Carl; Radauscher, Erich; Goodwin, Scott; Hines, Paul; Bower, Christopher A.
• Is Part Of: Journal of the Society for Information Display. Volume 25:Issue 10(2017)
• Page Start: 589
• Page End: 609
• Publication Date: 2017-12-08
• Subjects: LED -- ILED -- micro‐LED -- inorganic light‐emitting diode -- display -- redundant -- passive matrix -- active matrix -- light engine -- transfer printing; Information display systems -- Periodicals; 621.38154205
• DOI: 10.1002/jsid.610
• Languages: English
• ISSNs: 1071-0922

Abstract

Abstract: Large quantities of microscopic red, green, and blue light‐emitting diodes (LEDs) made of crystalline inorganic semiconductor materials micro‐transfer printed in large quantities onto rigid or flexible substrates form monochrome and color displays having a wide range of sizes and interesting properties. Transfer‐printed micro‐LED displays promise excellent environmental robustness, brightness, spatial resolution, and efficiency. Passive‐matrix and active‐matrix inorganic LED displays were constructed, operated, and their attributes measured. Tests demonstrate that inorganic micro‐LED displays have outstanding color, viewing angle, and transparency. Yield improvement techniques include redundancy, physical repair, and electronic correction. Micro‐transfer printing enables revolutionary manufacturing strategies in which microscale LEDs are first assembled into miniaturized micro‐system "light engines, " and then micro‐transfer printed and interconnected directly to metallized large‐format panels. This paper reviews micro‐transfer printing technology for micro‐LED displays. Abstract : Microscopic light‐emitting diodes (LEDs) made of crystalline inorganic semiconductor materials micro‐transfer printed in large quantities onto rigid or flexible substrates form monochrome and color displays having a wide range of sizes and interesting properties. Transfer‐printed micro‐LED displays promise excellent environmental robustness, brightness, spatial resolution, and efficiency. Passive‐matrix and active‐matrix inorganic LED displays were constructed, operated, and their attributes measured.