Patent ID: 7372212
Filing Date: 2008-05-13
Classification: G02F,H01J

Abstract:
1. A lamp comprising: a tube containing gas; first and second electrodes disposed in the tube adjacent to first and second ends of the tube; and third and fourth electrodes disposed at the first and second ends of the tube, respectively, such that a first region of the lamp is formed between the first and second electrodes, a second region of the lamp is formed between the first and third electrodes, and a third region of the lamp is formed between the second and fourth electrodes, wherein first to fourth voltages are respectively applied to the first to fourth electrodes, and wherein first light is generated in the first region due to the first and second voltages applied to the first and second electrodes, second light is generated in the second region due to the first and third voltages applied to the first and the third electrodes, and third light is generated in the third region due to the second and fourth voltages applied to the second and fourth electrodes.