Luminescence enhancement of OLED lighting panels using a microlens array film

被引：26

作者：

Han, Jun-Han ^{[1
]}

Moon, Jaehyun ^{[1
]}

Cho, Doo-Hee ^{[1
]}

Shin, Jin-Wook ^{[1
]}

Chu, Hye Yong ^{[1
]}

Lee, Jeong-Ik ^{[1
]}

Cho, Nam Sung ^{[1
]}

Lee, Jonghee ^{[2
]}

机构：

[1] ETRI, Flexible Device Res Sect, Daejeon, South Korea

[2] Hanbat Natl Univ, Dept Creat Convergence Engn, 125 Dongseo Daero, Daejeon 34158, South Korea

来源：

JOURNAL OF INFORMATION DISPLAY | 2018年 / 19卷 / 04期

关键词：

OLED; lighting; light extraction; microlens array (MLA) film; EMITTING-DIODES;

D O I：

10.1080/15980316.2018.1531073

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The enhancement of the luminance of organic light-emitting diode (OLED) panels with various areas (2.25-6084 mm(2)) using a microlens array (MLA) film was investigated. The luminance enhancement was dependent on the viewing angle, and the largest enhancement (64%) was observed in the normal direction while 60 and 18% enhancements were observed at 60 and 30 degrees, which led to lower enhancement (38%) of the total luminous flux compared with the luminance enhancement (64%) in the normal direction. The luminance enhancement with the MLA film also depended on the panel area, and the smaller panels showed lower luminance enhancement than the larger ones. As for the small panels, the straying light beyond the panel areas significantly affected the luminance of the panels, and over 60% luminance enhancement was observed in the normal direction for the large panels (2500 and 6084 mm(2)) with the MLA film while only 48 and 58% luminance enhancements were observed at the small panels (2.25 and 70 mm(2)).

引用

页码：179 / 184

页数：6

共 9 条

[1] Light extraction from OLEDs for lighting applications through light scattering [J].