| 摘要 |
An LCD has a layer of phosphorescent material which emits light at a predetermined frequency and intensity following stimulation by either ambient light or a backlight. In a preferred embodiment, a backlight LED is driven by low duty cycle voltage pulses which periodically refresh the phosphorescence of the phosphorescent layer. The phosphorescent layer may be provided by coating the rear polarizer of the LCD with a phosphor-based emulsion or by applying a thin film of phosphorescent material to the back of the LCD. In an embodiment of the invention, a transflective LCD has a layer of phosphorescent material disposed between a rear polarizer and a transflector.
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