51.4: Design of highly efficient white LED for the maximal CRI

Phosphor‐converted white light emitting diodes (pc‐LEDs) are being used as a source of artificial lighting. One the main goals lighting is to make objects/images look natural — they under sunlight. The ability accurately render color an object gauged by rendering index (CRI) and conventional pc‐LED has average CRI—CRI R ~ 80 which not suitable for In order fabricate pc‐LEDs applications, all CRI points (R 1 15 ) should be above 95. Herein novel design strategy LED package (PKG) implemented achieve ≥ 95 through introducing two blue LEDs UV in combination with green red phosphors. silicone encapsulant, ratio current LEDs, phosphor were optimized achieving high efficiency (~ 100 lm/W) well Our re‐designed PKG around lm/W would find applications stadium ultra‐high definition television production where required source.