At the G-1 meeting of the "FPD International 2003" seminar held at the Yokohama Pacifico Convention and Exhibition Center in Japan, Julie J Brown, vice president of technology at Universal Display, introduced the latest performance of the company's OLED phosphorescent materials.
In the development of green materials, the additive used a new metal complexes (GD33), and the half-life of half-life when the brightness was reduced from 1000 cd/m2 to half reached over 14,000 hours, thus achieving a long life. In addition, in terms of red materials, the additive concentration of the additive RD07 was optimized, and the half-life life when the brightness was reduced from 600 cd/m 2 to half was prolonged to 125,000 hours. The current efficiency of red and green materials was also improved to the best of 14cd/A and 28cd/A, respectively. Since the value of this publication has been increased by a factor of two from the previously published level, it can be said that the OLED phosphorescent material has reached a level that can be put into practical use.
In the development of green materials, the additive used a new metal complexes (GD33), and the half-life of half-life when the brightness was reduced from 1000 cd/m2 to half reached over 14,000 hours, thus achieving a long life. In addition, in terms of red materials, the additive concentration of the additive RD07 was optimized, and the half-life life when the brightness was reduced from 600 cd/m 2 to half was prolonged to 125,000 hours. The current efficiency of red and green materials was also improved to the best of 14cd/A and 28cd/A, respectively. Since the value of this publication has been increased by a factor of two from the previously published level, it can be said that the OLED phosphorescent material has reached a level that can be put into practical use.
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