Efficiency improvement and image quality of organic light-emitting display by attaching cylindrical microlens arrays

被引：56

作者：

Lee, Jiun-Haw ^{[1
,2
]}

Ho, Yu-Hsuan ^{[1
,2
]}

Chen, Kuan-Yu ^{[1
,2
]}

Lin, Hoang-Yan ^{[1
,2
]}

Fang, Jheng-Hao ^{[3
,4
]}

Hsu, Sheng-Chih ^{[1
,2
]}

Lin, Jia-Rong ^{[3
,4
]}

Wei, Mao-Kuo ^{[3
,4
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan

[3] Natl Dong Hwa Univ, Inst Optoelect Engn, Hualien 974, Taiwan

[4] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Hualien 974, Taiwan

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 26期

关键词：

D O I：

10.1364/OE.16.021184

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, cylindrical microlens arrays with two different alignments were proposed to be applied in a commercial mobile phone having an organic light-emitting diode (OLED) panel. It was found that the parallel-aligned cylindrical array had better performance than the vertical-aligned one for the OLED panel. The parallel-aligned cylindrical microlens array can increase the luminous current efficiency at surface normal and the luminous power efficiency of the OLED panel by 45% and 38%, respectively. Besides, it can also make the spectrum of the OLED panel more insensitive to the viewing angle. Though it can slightly blur the image on the OLED panel, the universal image quality index can be maintained at a level of 0.8630. (c) 2008 Optical Society of America

引用

页码：21184 / 21190

页数：7

共 14 条

[1] Enhanced light extraction efficiency from organic light emitting diodes by insertion of a two-dimensional photonic crystal structure [J].

Do, YR ;

Kim, YC ;

Song, YW ;

Lee, YH .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (12) :7629-7636

[2] Patterned microlens array for efficiency improvement of small-pixelated organic light-emitting devices [J].

Lin, Hoang-Yan ;

Ho, Yu-Hsuan ;

Lee, Juin-Haw ;

Chen, Kuan-Yu ;

Fang, Jheng-Hao ;

Hsu, Sheng-Chih ;

Wei, Mao-Kuo ;

Lin, Hung-Yi ;

Tsai, Jen-Hui ;

Wu, Tung-Chuan .

OPTICS EXPRESS, 2008, 16 (15) :11044-11051

[3] Improvement of the outcoupling efficiency of an organic light-emitting device by attaching microstructured films [J].

Lin, Hoang-Yan ;

Lee, Jiun-Haw ;

Wei, Mao-Kuo ;

Dai, Ching-Liang ;

Wu, Chia-Fang ;

Ho, Yu-Hsuan ;

Lin, Hung-Yi ;

Wu, Tung-Chuan .

OPTICS COMMUNICATIONS, 2007, 275 (02) :464-469

[4] Silicon-processed plastic micropyramids for brightness enhancement applications [J].

Lin, LW ;

Shia, TK ;

Chiu, CJ .

JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2000, 10 (03) :395-400

[5] Optimization of external coupling and light emission in organic light-emitting devices: modeling and experiment [J].

Lu, MH ;

Sturm, JC .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (02) :595-604

[6] Improved light out-coupling in organic light emitting diodes employing ordered microlens arrays [J].

Möller, S ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (05) :3324-3327

[7] Coupling Efficiency Enhancement in Organic Light-Emitting Devices Using Microlens Array-Theory and Experiment [J].

Peng, Huajun ;

Ho, Yeuk Lung ;

Yu, Xing-Jie ;

Wong, Man ;

Kwok, Hoi-Sing .

JOURNAL OF DISPLAY TECHNOLOGY, 2005, 1 (02) :278-282

[8] Organic light emitting devices with enhanced outcoupling via microlenses fabricated by imprint lithography [J].

Sun, Yiru ;

Forrest, Stephen R. .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (07)

[9] ORGANIC ELECTROLUMINESCENT DIODES [J].

TANG, CW ;

VANSLYKE, SA .

APPLIED PHYSICS LETTERS, 1987, 51 (12) :913-915

[10] A universal image quality index [J].

Wang, Z ;

Bovik, AC .

IEEE SIGNAL PROCESSING LETTERS, 2002, 9 (03) :81-84

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