Patent ID: 8216017

Claim:
A method of fabricating a planar light source, comprising: providing a first substrate; forming a plurality of first electrodes on the first substrate, wherein the first electrodes are approximately parallel to each other; forming a plurality of sets of first dielectric patterns on the first substrate, wherein each set of the first dielectric patterns comprises at least two first striped dielectric patterns, and each of the first striped dielectric patterns covers one of the first electrodes correspondingly, wherein the edges of the top of each first striped dielectric pattern are raised in a peak shape; wherein the method for fabricating the first striped dielectric patterns comprises: forming a dielectric material layer on the first substrate to cover the first electrodes, wherein the dielectric material layer comprises a solvent, a bonding agent, and a dielectric ceramic powder; heating the dielectric material layer to a first temperature, and continuously heating the dielectric material layer under the first temperature for a first duration; heating the dielectric material layer to a second temperature, and continuously heating the dielectric material layer under the second temperature for a second duration; and heating the dielectric material layer to a third temperature and continuously heating the dielectric material layer under the third temperature for a third duration; forming a phosphor layer between the first striped dielectric patterns of each set of the first dielectric patterns; providing a second substrate; and binding the first and second substrates, and meanwhile injecting a discharge gas into the discharge space.