Patent ID: 7710011
Filing Date: 2010-05-04
Classification: H01J

Abstract:
1. A flat light source, comprising: a first substrate having a planar surface and a plurality of electrodes disposed on the planar surface, wherein the first substrate has no groove on the planar surface thereof; a second substrate; a sealant disposed between the first and second substrates to form a space between the planar surface of the first substrate, second substrates and the sealant; a plurality of sets of dielectric pattern formed in the space between the first and second substrates, each set of dielectric pattern having at least two dielectric strips, and each dielectric strip covering one of the electrodes correspondingly, wherein each dielectric strip has a top surface and two side surfaces, and the top surface has an uneven contour; a phosphor layer disposed between the dielectric strips of each set of dielectric pattern, wherein the phosphor layer is further disposed on the top surface of the dielectric strips; and a plurality of spacers disposed in the space between the first and second substrates, wherein the height of the dielectric strips is the same as that of the spacers.