Apple Inc.

Edward H Kang

Victor H Yin

Jun Qi

Hung Sheng Lin

Rong Liu

Wenyong Zhu

Xinyu Zhu

Mookyung Son

Zhenyue Luo

Ling Han

Wei Lv

Yu P Sun

Chenhua You

Daming Xu

Joshua A Spechler

Ziruo Hong

Juan He

Heesang Suh

Suraj P Gorkhali

Janos C Keresztes

Pee Khiam So

Pee Khaim So

A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.

Displays with direct-lit backlight units

Light-emitting diodes in displays with direct-lit backlight units

Growing community of inventors

San Francisco, CA, United States of America

Edward H Kang