FIELD OF THE DISCLOSURE

The present disclosure is directed to apparatuses that operate non-light-emitting variable transmission devices, and methods of using the same.

BACKGROUND

A non-light-emitting variable transmission device can reduce glare and the amount of sunlight entering a room. Many non-light-emitting variable transmission devices that may be located along a wall of a building or a room or within a skylight. Also, a glazing may include a glass substrate with different zones each having a non-light-emitting variable transmission device. Sometimes, all non-light-emitting variable transmission devices along a wall, within a skylight or within a glazing may be set to the same visible transmittance. Typically, the same voltage will be applied to all non-light-emitting variable transmission devices. The actual visible transmittance may not be sufficiently uniform and can be seen by a human with average eyesight. Further improvement in control of non-light-emitting variable transmission devices is desired.

