In:
SID Symposium Digest of Technical Papers, Wiley, Vol. 43, No. 1 ( 2012-06), p. 1309-1311
Abstract:
A backlight light‐emitting diodes (LEDs) accelerated life test method can indicate that the life time of the 20.1“/55” backlight LEDs are about 24,000/67,000 hours under around 2,000 hours test time. The accelerated life test estimates LEDs lifetime in normal use by operating LEDs at high environmental stresses. Generally, the homogenous LEDs life degradation behavior follows an exponential curve. The junction temperature (Tj) is the key factor for LEDs lifetime estimation. The empirical result of homogenous luminance exponential over‐time degradation is related with the junction temperature during ALT.
Type of Medium:
Online Resource
ISSN:
0097-966X
,
2168-0159
DOI:
10.1002/sdtp.2012.43.issue-1
DOI:
10.1002/j.2168-0159.2012.tb06042.x
Language:
English
Publisher:
Wiley
Publication Date:
2012
detail.hit.zdb_id:
2526337-7
