Abstract

The structure of the prism sheet and the reflective polarizer sheet in the direct - illumination liquid crystal display (LCD) backlight is optimized and fabricated. The apex angle of the prism sheet was changed from 90 degree to 96.5 and 101.5 degree and the angular spread of the diffuser films attached on the reflective polarizer sheet was changed from 7 to 1.5 degrees. The measured view angle, the normal luminance, and the contrast ratio from the optimized backlight unit showed improved optical performances.

© 2009 Optical Society of Korea

Design of a brightness-enhancement-film-adaptive freeform lens to enhance overall performance in direct-lit light-emitting diode backlighting

Bin Xie, Run Hu, Qi Chen, Xingjian Yu, Dan Wu, Kai Wang, and Xiaobing Luo
Appl. Opt. 54(17) 5542-5548 (2015)

Edge-lit LCD backlight unit for 2D local dimming

Gun-Wook Yoon, Seok-Won Bae, Yong-Bok Lee, and Jun-Bo Yoon
Opt. Express 26(16) 20802-20812 (2018)

Reflective composite sheet design for LCD backlight recycling

Taehyung Kim, Kibeom Kim, Eun Soo Lee, Won Young Jeong, Dae Young Lim, and Suk-Won Choi
Opt. Express 22(9) 11175-11181 (2014)

Zero-optical-distance mini-LED backlight with light-guiding microstructure lens for extra-thin, large-area notebook LCDs

Zhi Ting Ye, Yen Lung Chen, Chang Che Chiu, and Chia Chun Hu
Opt. Express 31(26) 43600-43614 (2023)

Simple liquid crystal display backlight unit comprising only a single-sheet micropatterned polydimethylsiloxane (PDMS) light-guide plate

Joo-Hyung Lee, Hong-Seok Lee, Byung-Kee Lee, Won-Seok Choi, Hwan-Young Choi, and Jun-Bo Yoon
Opt. Lett. 32(18) 2665-2667 (2007)