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Vacuum fluorescent display device and cathode supporter thereof

A display device and cathode support technology, which is applied in the direction of discharge tube fluorescent screen, image/graphic display tube, cathode ray tube/electron beam tube, etc., can solve the problems of cathode vibration, disconnection, and inability to reduce brightness, etc.

Inactive Publication Date: 2004-05-05
FUTABA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, using the Figure 7 The cathode holder 13, the distance FH between the anode 10 and the anode 8 cannot be reduced and low voltage cannot be applied to the cathode 10 to save power consumption and / or improve brightness
[0015] In addition, since the bracket 15a is provided at the bottom of the arm 14a of the inner hook 14, the vibration from the inner hook 14 is directly transmitted to the bracket 15a, causing the cathode 10 fixed to the bracket 15a to vibrate or disconnect

Method used

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  • Vacuum fluorescent display device and cathode supporter thereof
  • Vacuum fluorescent display device and cathode supporter thereof
  • Vacuum fluorescent display device and cathode supporter thereof

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Embodiment Construction

[0030] Figure 1A with 1B A cross-sectional top view showing a vacuum fluorescent display device using a cathode holder 20 according to a first preferred embodiment of the present invention. figure 2 means along Figure 1A A cross-sectional view taken along line II-II. exist Figure 1A with 1B , omitted for simplification figure 2 Control electrode 9 and anode 8 are shown. image 3 An expanded view showing the cathode holder of the first embodiment. Here, the vacuum fluorescent display device of the present invention is the same as the conventional vacuum fluorescent display device except for the configuration of the cathode holder.

[0031] Each of the cathode holders 20 according to the first preferred embodiment of the present invention can be manufactured by using a press to cut and bend a thin metal sheet having a thickness of about 0.05-0.06 mm. Similar to the structure of the prior art, a plurality of hooks 22 and 22' are seamlessly formed with the base 21 fix...

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PUM

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Abstract

A fluorescent display device includes an envelop of which an inner space is in a vacuum state. The envelop has therein a plurality of filament-shaped cathodes supported by a pair of cathode supports; and anodes, each having a fluorescent material, fluorescent materials of the anodes radiating light by impaction of electrons emitted from the cathodes. Each of the cathode supports includes a base fixed to the envelop; one or more anchors, each having an arm serving as a resilient member and a tab for supporting one end of a cathode, the arm having two opposite end portions, one end portion being connected to the base and the tab being disposed at the other end portion; and one or more support members, each being connected to the base and separated from an arm of its adjacent anchor and supporting one end of another cathode.

Description

[0001] technical field [0002] The present invention relates to vacuum fluorescent display devices; more particularly, to an improved cathode support (hereinafter referred to as "cathode support") consisting of hooks and supports for supporting filamentary cathodes. Background technique [0003] Figure 5 means along Image 6 A cross-sectional view of an exemplary conventional vacuum fluorescent display device taken along the line V-V shown. Image 6 means along Figure 5 The cross-sectional diagram taken along line V1-V1 is shown. exist Figure 5 , omitted for simplicity Image 6 Control electrode 9 and anode 8 are shown in . Figure 5 with 6 The vacuum fluorescent display device shown in includes a sealed box-like cover 1 made of an insulating material such as glass. The inner space of the cover 1 maintains a high vacuum state. The cover 1 is provided with an anode substrate 2 and a front substrate 3 facing each other with a distance therebetween. A frame-like side pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J31/15H01J1/62H01J29/02H01J29/04H01J31/12H01J63/04
CPCH01J29/028H01J31/126
Inventor 金坂乡之
Owner FUTABA CORPORATION