Systems and methods for controlling backlight output characteristics
A backlight includes a light source and one or more light recycling films. The light source generates light that exits the light source with an angular exit distribution. The light recycling films are oriented in relation to the light source so that the prism peaks of the recycling films are oriented away from the light source. The recycling films have a range of optimal incident angles that allow light to pass through the recycling films without recycling. The components of the light source, the characteristics of the recycling films, or both, are configured to control the overlap between the exit distribution of the light source and the optimal incident angle range of the recycling films.
3M Innovative Properties Company
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Naoya Yasuyuki Chideuk Wade D. Yuji Gary T. Ji-Young Seo-Hern Rui John F. Keith M. Yang Eric W. Xingpeng Min-Young Kenneth A. Byung-Soo Leland R. Shandon D. David J. Jie Xianneng Youngsoo Charles D. John T.
Taniguchi Daigo Kim Kretman Saito Boyd Choi Lee Zhang Van Derlofske, III Kotchick Yu Nelson Yang Ji Epstein Ko Whitney Hart Lamb Zhou Peng Park Hoyle Cowher