61.1: 80lm/W White OLEDs for Solid State Lighting

Moon, Jaemin; Joo, Munkyu; Lee, Yeonkeun; Lee, Junghyoung; Park, Minchoon; Choi, Junrye; Ham, Yunhye; Ahn, Yong-Sik; Kim, Jungdoo; Lee, Jane; Kim, Jihee; You, Jina; Jeong, Won-Ik; Kim, Jong-Seok; Son, Sehwan

doi:10.1002/j.2168-0159.2013.tb06349.x

Cited by 11 publications

(3 citation statements)

References 2 publications

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“…showed a PE of 80 lm∕W for a three-stack tandem structure and reported a lifetime (i.e., LT70) of 26,000 h at 4200 cd∕m 2 . 81 Universal Display Corp. reported a PE of 63 lm∕W and lifetime (LT70) of 27,500 h at 3000 cd∕m 2 using phosphorescent stacked OLEDs. 82 Hitachi reported a PE of 80 lm∕W for a highly efficient white OLED device made up of a single EML that includes three types of dopants.…”

Section: Latest Trend Of Industrial Research On White Oledsmentioning

confidence: 99%

Recent progress in the use of fluorescent and phosphorescent organic compounds for organic light-emitting diode lighting

et al. 2015

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Abstract. Organic light-emitting diodes (OLEDs) have attracted considerable attention in both academic and industrial circles. Certain properties of OLEDs make them especially attractive in the lighting market, including area emission characteristics not found in other existing light sources, environmentally friendly efficient use of energy, large area, ultra-light weight, and ultrathin shape. Fluorescent and phosphorescent materials that are being applied to white OLEDs have been categorized, and the chemical structures and device performances of the important blue, orange, and red light-emitting materials have been summarized. Such a systematic classification and understanding of the materials that have already been reported can aid the development and study of new light-emitting materials through quantitative and qualitative approaches.

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Section: Latest Trend Of Industrial Research On White Oledsmentioning

confidence: 99%

Recent progress in the use of fluorescent and phosphorescent organic compounds for organic light-emitting diode lighting

et al. 2015

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“…In addition, achievements of preferable specifications as lighting source such as high efficacy, high luminance, long lifetime and high color rendering index (CRI) are also expected. In terms of efficiency, around 60 to 110 lm/W of panel efficacy have already reported from various research institutions [4][5][6]. Key technology for high efficacy, long lifetime and high luminance is light extraction enhancement technology from OLED devices.…”

Section: Introductionmentioning

confidence: 99%

Development of Highly Efficient Light Extraction Technology with Nano-structure for OLED Devices

Matsuzaki

Yamae

2015

J. Photopol. Sci. Technol.

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Novel nano-structure for the improved light extraction efficiency of reduced evanescent mode OLED devices (REM OLED) was developed. The nano-structure was designed to have high transmittance especially over critical angle in order to achieve good combination with the light distribution pattern of the REM OLED devices. In this system, the wide angular substrate mode was efficiently converted into the external mode, and high efficacy green OLED with EQE of 54 % was obtained. Relative light extraction efficiency to a hemisphere lens system was 89 %.

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“…Preferable specification as lighting source such as high color rendering index (CRI) and long lifetime is also expected. In terms of efficiency, around 60–110 lm/W of panel efficacy has already been reported from various research institutions . A key technology of these achievements is light extraction enhancement from organic emitter.…”

Section: Introductionmentioning

confidence: 99%

Realization of high efficacy white organic light emitting diode by controlling internal light absorption and angular distribution

Yamae

Kittichungchit

Ide

et al. 2014

Jnl Soc Info Display

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We investigated highly efficient organic light emitting diode (OLED) with advanced optical designs of organic layers to convert evanescent mode (internal absorption) into guided light and micro structure to extract the specifically distributed guided light dominated by wide angular substrate mode. White OLED device based on these optical designs realized high efficacy of 133 lm/W and external quantum efficiency of 56 % at 1000 cd/m 2 .

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61.1: 80lm/W White OLEDs for Solid State Lighting

Abstract: 80lm/W white OLED has been successfully realized by introducing 3‐stacked tandem structure along with internal light extraction layer. The power efficacy and lifetime of the device were maintained over 80 lm/W and 26,000 hr for LT70 condition at 4,200nit operation, respectively.

Cited by 11 publications

References 2 publications

Recent progress in the use of fluorescent and phosphorescent organic compounds for organic light-emitting diode lighting

Recent progress in the use of fluorescent and phosphorescent organic compounds for organic light-emitting diode lighting

Development of Highly Efficient Light Extraction Technology with Nano-structure for OLED Devices

Realization of high efficacy white organic light emitting diode by controlling internal light absorption and angular distribution

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