Patent · US Active

LED array for microdisplays or like application

US7923738B2 · kind B2 · utility

2Cited by
1References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 6, 2008
Grant dateApr 12, 2011
Priority date—
Expiry dateNov 6, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10H20/857
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An array of LEDs are grown by epitaxy on row-connecting conductor strips extending in parallel spaced relationship to one another on the surface of a semiconductor substrate and are thereby electrically interconnected in rows. The row-connecting conductor strips are formed by ion implantation of a p-type dopant into parts of an n-type silicon substrate. Column-connecting conductor strips extend over the light-emitting surfaces of the LEDs for electrically interconnecting them in columns. The LEDs are lit up individually by voltage application between one of the row-connecting conductor strips and one of the column-connecting conductor strips.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.