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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 18 — Aug. 30, 2010
  • pp: 18685–18690

Partitioning pixel of organic light-emitting devices with center-hollowed microlens-array films for efficiency enhancement

Kuan-Yu Chen, Yu-Ting Hsiao, Hoang Yan Lin, Mao-Kuo Wei, and Jiun-Haw Lee  »View Author Affiliations

Optics Express, Vol. 18, Issue 18, pp. 18685-18690 (2010)

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A pixel partition scheme assisted with patterned or center-hollowed microlens-array films (MAFs) was proposed to improve the optical characteristics and electrical properties of organic light-emitting diodes (OLEDs). In our optical simulation results, a pixel of 1 × 1 mm2 with a center-hollowed MAF has a 42% luminance enhancement; however, after dividing the large pixel into ten by ten smaller pixels of 100 × 100 μm2, the partitioned units with a corresponding center-hollowed MAF can have a 104% luminance enhancement under the same total active area and the same optical power of organic emitters. Furthermore, a significant 127% luminance enhancement by the introduction of a high-refractive-index substrate can be obtained.

© 2010 OSA

OCIS Codes
(080.3630) Geometric optics : Lenses
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Optical Devices

Original Manuscript: April 12, 2010
Revised Manuscript: June 21, 2010
Manuscript Accepted: August 3, 2010
Published: August 18, 2010

Kuan-Yu Chen, Yu-Ting Hsiao, Hoang Yan Lin, Mao-Kuo Wei, and Jiun-Haw Lee, "Partitioning pixel of organic light-emitting devices with center-hollowed microlens-array films for efficiency enhancement," Opt. Express 18, 18685-18690 (2010)

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