高效率高準直背光模組設計

Design for a Highly Efficient and Collimated Backlight Module

張瑋淳(Wei-chung Chang)

指導教授 ： 孫文信 ； 鄧敦建

國立中央大學/理學院/光電科學研究所/碩士(2012年)

摘要

本論文研究為高效率、高準直、高輝度且薄邊框的側入光式LED導光板模組設計。可應用於筆記型電腦（NoteBook）、平板電腦、i-pad、智慧型手機等小尺寸的3C產品，不但具有防窺功能，且在戶外不會因為外界光線過亮讓眼睛瞳孔縮小而顯得螢幕過暗的情形發生。
　　本架構可將邊框的寬度縮減至2.5mm以下，可達到近乎無框的美觀效果，且導光板厚度壓在2.0mm，在高準直度的部分，將可視角縮減至半角7度以內，大幅提高能量使用效率。

關鍵字

背光板 ； 背光模組 ； 高效率背光模組 ； 高準直背光模組 ； 導光板

並列摘要

In this thesis, a novel edge-lit backlight module was proposed, which had high efficiency, collimation, luminance and a thin border. The module can be applied not only to small-sized or mobile product, but also to notebook or tablet PC. Furthermore, it can also provide special function such as anti-peep, sunlight readability. In architecture, this backlight module has very narrow border of 2.5 mm or below; a folded and piece-up light guide plate of 2.0 mm thickness. The FWHM of the output intensity of this module is less than 14
degrees, and the on-axis luminance is up to 20000 nits.

並列關鍵字

high efficiency backlight module ； collimated backlight module ； light guide ； backlight module

參考文獻

[4] R. Lu, S. Gauza, and S. T. Wu, “LED-lit LCD TVs,” Mol. Cryst. Liq. Cryst., vol. 488, pp. 246–259, 2008.

[5] F. C. Lin, L. Y. Liao, C. Y. Liao, Y. P. Huang, and H. P. D. Shieh, “Dynamic backlight gamma on high dynamic range LCD TVs,” J. Disp.Tech., vol. 4,no. 2, pp. 139–146, 2008.

[6] C. C. Sun, I. Moreno, S. H. Chung, W. T. Chien, C. T. Hsieh, and T.H. Yang, “Direct LED backlight for large area LCD TVs: Brightness analysis,” in Proc. SPIE 6669, 2007, p. 666909.

[7] LED there be light. Electrooptics.com. Retrieved on 2012-03-16.

[9] "Nichia Unveils White LED with 150 lm/W Luminous Efficiency". Tech-On!. December 21, 2006. Retrieved 2007-08-13.