Simple liquid crystal display backlight unit comprising only a single-sheet micropatterned polydimethylsiloxane (PDMS) light-guide plate.
A simple liquid crystal display (LCD) backlight unit (BLU) comprising only a single-sheet polydimethylsiloxane (PDMS) light-guide plate (LGP) has been developed. The PDMS LGP, having micropatterns with an inverse-trapezoidal cross section, was fabricated by backside 3-D diffuser lithography followed by PDMS-to-PDMS replication. The fabricated BLU showed an average luminance of 2878 cd/m(2) with 73.3% uniformity when mounted in a 5.08 cm backlight module with four side view 0.85cd LEDs. The developed BLU can greatly reduce the cost and thickness of LCDs, and it can be applied to flexible displays as a flexible light source due to the flexible characteristic of the PDMS itself.
Lee
Joo-Hyung
JH
School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, 373-1 Guseong-Dong, Yuseong-Gu, Daejeon, Korea. jhlee@3dmems.kaist.ac.kr
Lee
Hong-Seok
HS
Lee
Byung-Kee
BK
Choi
Won-Seok
WS
Choi
Hwan-Young
HY
Yoon
Jun-Bo
JB
D003116:Color; D003626:Data Display; D004129:Dimethylpolysiloxanes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D050866:Liquid Crystals; D008904:Miniaturization; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012828:Silicones
D004129:Dimethylpolysiloxanes; D012828:Silicones; C013830:baysilon