摘要
显示系统能够显示更多内容和更具功能性的前景预测,使绿色显示向更高分辨率的方向发展。白光LED由于所具有的低成本、长寿命和小体积的特性正在迅速成为照明和背光源的选择。但是由于白光LED(3.1￣4.0V)相对于绿光LED(1.8￣2.7V)具有更高的电压降,因而绿光LED可以直接由带有一个镇流电阻的线性稳压器来供电,而用于照明和背光的白光LED需要对电池电压进行升压。本文将着重讨论几种驱动白光LED的新方法,并分析每种方法的优点。
The promise of more content and functionality has caused an evolution towards higher resolution for color displays. White LEDs are quickly becoming the lighting and backlight choice because of their low cost, long life, and small size. However, the white LED has a higher voltage drop （3.1 to 4.0V） than the green LED （1.8 to 2.7V）, whereas the green LED can be directly powered by linear regulator with a ballast resisto; the white LED used for light and backlight will require the battery voltage to be boosted. This article will describe some new methods of driving white LEDs and their features.
出处
《现代显示》
2006年第6期98-101,共4页
Advanced Display
