Abstract
The development of high-brightness GaP (green) and GaAlAs (red) LEDs has brought about greatly expanded LED applications to flat panel display devices. Since a low-cost production process for monolithic devices is now available, the display devices are expected to be used soon in automobile displays. Hybrid devices such as outdoor traffic information signs and billboards are seen in a number of new applications. The next important step is to develop a bright blue LED for flat panel display devices. This paper presents new trends in the LED technology.