| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of efficiently irradiating the entire light emitted from a phosphor painted surface toward front side, and to provide a structure of making so called tiled display easy, by extending pixels up to the very limit of the end faces of a front glass. SOLUTION: Grooves are formed on a front glass by sand blast or the like, and pixels are formed by painting phosphor on the inside surface of the grooves, and reflection grooves on which, phosphor is not painted, but reflecting the light emitted from the pixels by forming wall surfaces near the pixels, are formed. By the above, the light emitted from the phosphor painted on the inside surface is efficiently irradiated toward front side, and the area of pixels, namely, the area of light emitting part can be extended up to the separation wall part. Further, a structure enabled to easily form a so called tiled display is obtained by forming the front glass into the structure having a reflection groove which is cut by the above grooves, and by utilizing the reflection groove as a frit painting part, and by extending the pixel area up to the part very near the side faces of the front glass.
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