Dot matrix type vacuum fluorescent display tube

Details Dot matrix type vacuum fluorescent display tube Dot matrix type vacuum fluorescent display tube

1996-09-20

1998-04-14

Patel, Nimeshkumar

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313495, 345 75, 345103, 345 47, G09G 330

Patent

active

057396345

ABSTRACT:
A dot matrix type vacuum fluorescent display tube includes anode electrodes, first and second wiring groups, an anode driver, light-emitting portions, a grid electrode, cathode electrodes, and an envelope. The anode electrodes are arranged in a matrix on a substrate. The first and second wiring groups extend in opposite directions with respect to the arrangement direction of the anode electrodes, and each of the first and second wiring groups is extracted from every other ones of the anode electrodes arranged in the matrix. The anode driver applies drive signals, respectively, to the anode electrodes connected to the first and second wiring groups. The light-emitting portions comprise phosphors and are formed on the anode electrodes. The grid electrode is arranged to be spaced apart from the light-emitting portions arranged in a matrix by a predetermined distance. The cathode electrodes are arranged above the grid electrode. The envelope is arranged to include at least the anode electrodes, the light-emitting portions, the grid electrode, and the cathode electrodes, and has a display portion thereon.

REFERENCES:
patent: 5387838 (1995-02-01), Hirakawa et al.
patent: 5510672 (1996-04-01), Washio et al.
patent: 5548185 (1996-08-01), Kumar et al.
"18.4/10:15 A. M.: High Resolution Vacuum Fluorescent Display with 256.times.256 Dot Matrix" by Masao Uchiyama, Mitsuru Masuda et al. Ise Electronics Corpi., Ise Japan. p. p212 SID 82 Digest--p.p SID 82 Digest 213.
"18.7/12:00 Noon: A High Resolution Graphic Display" by Kiyoshi Morimotor Futaba Corp. Chiba Prefecture, Japan p.p. 218 SID 82 Digest--p.p SID 82 Digest 219.
"18.5/10.55 A.M.: High Resolution X-Y Dot Matrix VFD" by Robert P. Kiernan, T. Watanabe, et al. p.p 214 SID 82 Digest-SID 82 Digest 215.

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