Effects of Light-Emitting Diode (LED) Configuration on Luminance and Color of an Edge-Lit Backlight Unit

Jeongmin Moon, Kyunghwan Oh

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this paper, we evaluated quantitative changes in the luminance and the color on the light-exit plane of an LED edge-lit backlight unit (BLU) by systematically controlling the optical properties of individual white LEDs. We placed a light absorbing film and red-green-blue filters to control the white intensity and the color of an individual LED string, respectively. Impacts of this 'defect' LED's optical properties were systematically monitored across the light-exit plane in terms of local distribution of the luminance and the color, overlaying prism films and diffusion film on a light guiding plate (LGP). The roles of prism films and diffusion film were also experimentally analyzed to assess their homogenizing capability for the luminance and the color with respect to the defect-like LEDs.

Original languageEnglish
Article number7120897
Pages (from-to)768-775
Number of pages8
JournalIEEE/OSA Journal of Display Technology
Volume11
Issue number9
DOIs
Publication statusPublished - 2015 Sep 1

Fingerprint

luminance
Light emitting diodes
Luminance
light emitting diodes
Color
color
configurations
Prisms
prisms
Optical properties
optical properties
Defects
defects
homogenizing
strings
filters

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

@article{d2d19e5e3a764ca9a83c9dd74c671fb6,
title = "Effects of Light-Emitting Diode (LED) Configuration on Luminance and Color of an Edge-Lit Backlight Unit",
abstract = "In this paper, we evaluated quantitative changes in the luminance and the color on the light-exit plane of an LED edge-lit backlight unit (BLU) by systematically controlling the optical properties of individual white LEDs. We placed a light absorbing film and red-green-blue filters to control the white intensity and the color of an individual LED string, respectively. Impacts of this 'defect' LED's optical properties were systematically monitored across the light-exit plane in terms of local distribution of the luminance and the color, overlaying prism films and diffusion film on a light guiding plate (LGP). The roles of prism films and diffusion film were also experimentally analyzed to assess their homogenizing capability for the luminance and the color with respect to the defect-like LEDs.",
author = "Jeongmin Moon and Kyunghwan Oh",
year = "2015",
month = "9",
day = "1",
doi = "10.1109/JDT.2015.2443374",
language = "English",
volume = "11",
pages = "768--775",
journal = "IEEE/OSA Journal of Display Technology",
issn = "1551-319X",
publisher = "IEEE Computer Society",
number = "9",

}

Effects of Light-Emitting Diode (LED) Configuration on Luminance and Color of an Edge-Lit Backlight Unit. / Moon, Jeongmin; Oh, Kyunghwan.

In: IEEE/OSA Journal of Display Technology, Vol. 11, No. 9, 7120897, 01.09.2015, p. 768-775.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of Light-Emitting Diode (LED) Configuration on Luminance and Color of an Edge-Lit Backlight Unit

AU - Moon, Jeongmin

AU - Oh, Kyunghwan

PY - 2015/9/1

Y1 - 2015/9/1

N2 - In this paper, we evaluated quantitative changes in the luminance and the color on the light-exit plane of an LED edge-lit backlight unit (BLU) by systematically controlling the optical properties of individual white LEDs. We placed a light absorbing film and red-green-blue filters to control the white intensity and the color of an individual LED string, respectively. Impacts of this 'defect' LED's optical properties were systematically monitored across the light-exit plane in terms of local distribution of the luminance and the color, overlaying prism films and diffusion film on a light guiding plate (LGP). The roles of prism films and diffusion film were also experimentally analyzed to assess their homogenizing capability for the luminance and the color with respect to the defect-like LEDs.

AB - In this paper, we evaluated quantitative changes in the luminance and the color on the light-exit plane of an LED edge-lit backlight unit (BLU) by systematically controlling the optical properties of individual white LEDs. We placed a light absorbing film and red-green-blue filters to control the white intensity and the color of an individual LED string, respectively. Impacts of this 'defect' LED's optical properties were systematically monitored across the light-exit plane in terms of local distribution of the luminance and the color, overlaying prism films and diffusion film on a light guiding plate (LGP). The roles of prism films and diffusion film were also experimentally analyzed to assess their homogenizing capability for the luminance and the color with respect to the defect-like LEDs.

UR - http://www.scopus.com/inward/record.url?scp=84939811979&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84939811979&partnerID=8YFLogxK

U2 - 10.1109/JDT.2015.2443374

DO - 10.1109/JDT.2015.2443374

M3 - Article

AN - SCOPUS:84939811979

VL - 11

SP - 768

EP - 775

JO - IEEE/OSA Journal of Display Technology

JF - IEEE/OSA Journal of Display Technology

SN - 1551-319X

IS - 9

M1 - 7120897

ER -