An Edge-lit Backlight Unit for Small Portable Liquid Crystal Displays with a Newly Designed Single Pyramid Sheet

Sung-Taek Hu, Suk-Won Choi and Manhwan Lee

J. Korean Phys.Soc. 58,392 [doi: 10.3938/jkps.58.392 | PDF Download]

An edge-lit backlight unit (BLU) for small portable liquid crystal displays is proposed. In this BLU, a newly designed single pyramid sheet replaces the two orthogonally-placed prism sheets. If the newly designed pyramid sheet is used, the viewing-angle-dependent luminance distribution of the BLU can be improved.