Recently, glass blocks are often used for parts of a building wall and are well effective on lighting and decoration. A glass block is originally clear and hollow. If we set a pair of electrodes and pack proper gases in it, we can turn it a discharge tube easily. We packed Hg and Neon in it to make it a multicolored discharge tube and tried to develop a large-sized multicolored display. Although the brightness was not necessarily enough and the luminescent efficiency was low, we could obtain the following good results.
(1) We have formed a display panel with 5×7 dots by 35 blocks and could indicate alphabets and Arabic figures in two colors, red and blue.
(2) The negative glow was covered by the anode of the next block perfectly in a panel with blocks shaped Z.
(3) The negative glow in a square block could be covered too by the blind in front of the cathode.
(4) The luminous color was considerably vivid. That is, the red was (x=0.5, y=0.33) and the blue was (0.22, 0.24).
J-STAGEがリニューアルされました! https://www.jstage.jst.go.jp/browse/-char/ja/
