Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2006-05-30
2006-05-30
Santiago, Mariceli (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S496000, C313S497000, C313S293000, C313S304000
Reexamination Certificate
active
07053544
ABSTRACT:
In a display device, to ensure sufficient electron source regions on cathode lines formed on a back substrate, cathode lines are divided into line portions and cathode portions, wherein the line portions are made narrow to a width which is a required minimum for transmitting signals, and the area of the cathode portions which form an electron source has a wide island shape. Further, a plurality of cathode lines are formed into groups, and respective cathode portions are formed at positions corresponding to electron passing apertures formed in the control electrodes. Also, the gap between the wiring portions is made small, so that a relatively large space is ensured between neighboring groups of the cathode lines. Thus, the tolerance in mounting the control electrodes and the tolerance in mounting the distance holding members can be increased, whereby the alignment between electron passing apertures and cathode lines is facilitated.
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Hirasawa Shigemi
Kaneko Yoshiyuki
Kijima Yuuichi
Nakamura Tomoki
Sasaki Susumu
Antonelli, Terry Stout and Kraus, LLP.
Hitachi Displays Ltd.
Santiago Mariceli
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