Patent ID: 7569982

Claim:
A planar photoluminescent lamp, comprising: a. a lower substrate; b. an upper substrate disposed over the lower substrate; c. a plurality of barrier walls, located between the lower substrate and the upper substrate, defining a plurality of straight channels with the lower substrate and the upper substrate, wherein the plurality of straight channels are not connected to each other, and each channel is with a first end, an opposite, second end and an axis, and is formed with a resistive portion characterized by a width, A r , and a first capacitive portion and a second capacitive portion both characterized by a width, A c , such that A c >A r , wherein the first capacitive portion is located at the first end, the second capacitive portion is located at the second end, and the resistive portion is located between the first capacitive portion and the second capacitive portion, and wherein the plurality of straight channels has at least a first channel and a second channel configured such that the width of the first capacitive portion of the first channel and the width of the first capacitive portion of the second channel are different; d. a first electrode positioned in proximity with the first end, substantially perpendicular to the axis of a channel, and extending over the first capacitive portions of each of the plurality of straight channels; and e. a second electrode positioned in proximity with the second end, substantially perpendicular to the axis of a channel, and extending over the second capacitive portions of each of the plurality of straight channels.