TY - JOUR
T1 - Late-news poster
T2 - 2009 Vehicles and Photons Symposium
AU - Lee, Baek Woon
AU - Hwang, Young In
AU - Lee, Hae Yeon
AU - Kim, Sungchul
AU - Kim, Sangsoo
AU - Ju, Young Gu
N1 - Publisher Copyright:
© 2009 SID.
PY - 2009
Y1 - 2009
N2 - Previously, we reported two optical structures for bottom-emitting white OLED, exhibiting wide color gamut (> 100% NTSC) and high (> 40%) transmission through color filter. The panels employed RGBW color system for efficiency. The color shifts at oblique angles for the individual R, G, B, and R+G+B were maintained below Δu’v’ < 0.02 @ 60°. However, the colors produced by the combination of R/G/B subpixels and W subpixels exhibit large color shift when viewed at oblique angles because the luminance profiles, as a function of viewing angle, of the R/G/B which employ strong resonance, and the W which has weak resonance, are very different. In this report, we present a novel optical architecture for the W-subpixel. The color shift for the W-subpixel was reduced from Δu’v’ = 0.059 to 0.026 and the luminance profile was much closer to those of R/G/B subpixels. The efficiency of the W-subpixel with the new structure was on the same level as that of the conventional, plain, weak-resonance structure.
AB - Previously, we reported two optical structures for bottom-emitting white OLED, exhibiting wide color gamut (> 100% NTSC) and high (> 40%) transmission through color filter. The panels employed RGBW color system for efficiency. The color shifts at oblique angles for the individual R, G, B, and R+G+B were maintained below Δu’v’ < 0.02 @ 60°. However, the colors produced by the combination of R/G/B subpixels and W subpixels exhibit large color shift when viewed at oblique angles because the luminance profiles, as a function of viewing angle, of the R/G/B which employ strong resonance, and the W which has weak resonance, are very different. In this report, we present a novel optical architecture for the W-subpixel. The color shift for the W-subpixel was reduced from Δu’v’ = 0.059 to 0.026 and the luminance profile was much closer to those of R/G/B subpixels. The efficiency of the W-subpixel with the new structure was on the same level as that of the conventional, plain, weak-resonance structure.
UR - http://www.scopus.com/inward/record.url?scp=85072119653&partnerID=8YFLogxK
U2 - 10.1889/1.3256676
DO - 10.1889/1.3256676
M3 - Conference article
AN - SCOPUS:85072119653
SN - 0097-966X
VL - 40
SP - 1752
EP - 1755
JO - Digest of Technical Papers - SID International Symposium
JF - Digest of Technical Papers - SID International Symposium
IS - 1
Y2 - 15 October 2009 through 16 October 2009
ER -