P-182: New Deep-Blue EML Materials Based on Fully Substituted Ethylene and Anthracene Derivatives

New blue fluorescent compounds containing tetra‐substituted ethylene moieties have been designed and synthesized. By fabricating multilayered non‐doped OLED devices using these new blue materials, we achieved luminance efficiencies of 4.00 lm/W (10.33 cd/A at 8.1 V) for BPBAPE[CB‐104] and 1.82 lm/W (3.93 cd/A at 6.8 V) for BTPPA [CB‐105B] at 10 mA/cm2. The BPBAPE [CB‐104] and BTPPA [CB‐105B] devices exhibited sky blue emission (0.195, 0.303) and deep blue emission (0.159, 0.135) at 10mA/cm2 respectively. We also synthesized new kinds of blue materials such as CB‐201, 202, and 203. CB‐203 device showed 3.11cd/A of current efficiency and (0.148, 0.088) CIE value.