Controlling color and white temperature in an LCD display modulating supply current frequency

摘要

A display system, having an emissive body, emitting light in a way that is color temperature controllable. The light emission can be from zones. The emissive body can be a FIPEL type device with a first transparent conductive coating over a light emitting substrate. The zones are each separately controllable for color temperature.

主权项

1. A display system, comprising
a frequency generator; an emissive body, receiving drive from said frequency generator, and emitting light over a surface as part of a display system, said emissive body including a control that controls a color temperature of its light output between multiple different color temperatures, by changing a frequency emitted by the frequency generator, where the frequency of the frequency generator changes a white balance of the light output; and a spatial light modulator, having multiple individual controllable pixels, said multiple pixels being illuminated by said emissive body, and said pixels each modulating the light from said emissive body.