Improving the Brightness and Daylight Contrast of Organic Light‐Emitting Diodes
作者： V. Vaenkatesan , R. T. Wegh , J.-P. Teunissen , J. Lub , C. W. M. Bastiaansen
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摘要: For most applications of displays based on organic light-emitting diodes (LEDs), it is desirable to have good daylight contrast in combination with a high intensity emitted light. The conventional approaches enhance the contrast, using black cathode or circular polarizers, result significant loss light by LED. A rather novel approach while keeping minimum introduction chiral-nematic film device. This leads an increase efficiency factor 1.8 (with respect polarizers) some values within reflection band film. Outside band, however, infinity.
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