| 摘要 |
An early warning system and method for predicting a failure of a backligh t of any display that uses internal illumination, such as a liquid crystal d isplay (LCD), digital light processing~ (DLP), or liquid crystal on silicon (LCoS). This display could be a flat screen type or a projector type. A disp lay indicating that failure is imminent within a certain period of time is p rovided. A countdown display of life remaining may also be provided. Color t emperature of the backlight is monitored and compared over time to form the prediction of failure. Measurements may also include measurements of individ ual components of light, such as the red, green, and blue components. Compon ents may be compared individually over time to detect a color shift that rea ches a threshold of prediction failure.
|
