Large size LED chip for projector illumination

Tien Min Hung*, Cheng-Huan Chen, Min Hsun Hsieh, Chou Chih Yin, Yen Wen Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Light emitting diode is becoming a popular illumination source for projection displays, but the light collection efficiency is still limited. This paper proposes a large size LED chip to replace a small chip array to reduce the overall apparent emission area so that the light collection efficiency can be increased, especially for low system etendue application. The performance of large LED chips has shown that there is no scaling up effect on luminous efficiency and emission profile.

Original languageEnglish
Pages (from-to)1787-1790
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Issue number4
StatePublished - 2006
Event44th International Symposium, Seminar, and Exhibition, SID 2006 - San Francisco, CA, United States
Duration: 4 Jun 20069 Jun 2006


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