Plasma display panel

Abstract

Abstract PURPOSE:To maintain the interval between upper and lower glass plates constant so as to prevent dispersion of discharge voltage by using balls whose diameters are preadjusted to a diameter which is roughly the same as the interval between upper and lower glass plates as spacers each of which is interposed between the upper and lower glass plates. CONSTITUTION:Ball spacers 9 whose diameters are preadjusted are disposed in a partition wall portion forming a discharge space 8 and in the sealing portion of the peripheral portion of upper and lower glass plate 1, 2. The ball spacers 9 are each made from such a material whose softening point temperature is as high as 1000 deg.C as alumina ceramics and the like and so even in use together with glass frit serving as a sealing member 5 of a softening point temperature about 600 deg.C does not change its form at the hermetic sealing of the upper and lower glass plate 1,2 to each other by means of baking of the glass frit but fully functions as a spacer in maintaining the interval between the upper and lower glass plates and forming the discharge space 8.

Inventors

• 👤 Yusaku Saito
• 👤 雄作 斎藤
• 👤 Nobuo Fukushima
• 👤 信夫 福島

Bibliographic Details