logo
CanyamAI summaries for academic research
language
MobileMobile
  • Phone FeatureWeChat Mini Program
EnglishEnglish
noticeNotice
BlogBlog
delete
arrow
Return

Grating micro-dot patterned light guide plates for LED backlights

delete2007-01-01
delete70
delete
OA
AI
S
Seung Ryong Park *
O
Oh Jang Kwon
D
Dong-Ho Shin
S
Seok-Ho Song
H
Hong‐Seok Lee
H
Hwan Young Choi
DOI：10.1364/OE.15.002888delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
A novel LED backlight unit implementing a light guide plate (LGP) with a two-dimensional array of grating micro-dots is proposed. By optimizing grating-vector orientations of local gratings and applying suitable grating-depth modulation in the array, taking into consideration of the radiation pattern of the LED source, uniform out-coupled light distribution within a narrow luminance angle was achieved without recognizable hot spots. Such a light guide plate was fabricated using a dot-matrix holographic interferometer setup and a UV embossing replication. Fabricated polycarbonate LGP showed similar to 62% intensity uniformity within similar to 8 degrees and 20 degrees luminance angles in two main directions. (c) 2007 Optical Society of America.
Keywords:
ILLUMINATION
DIFFRACTION
PIPE

Journal

Optics Express cover
Optics Express
IF:
3.3
Papers:
6.1W
Citations:
14.3W

Organization

No organization information available