Degassing method of electric vacuum display device of plate glass

A technology for display devices and flat glass, which can be used in glass forming, glass reshaping, glass manufacturing equipment, etc., and can solve problems such as the inability to put air getters

Inactive Publication Date: 2009-10-21
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the flat glass vacuum display device is an ultra-thin design, with a general thickness of about 200μ, and it is impossible to put a getter in such a small space.

Method used

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  • Degassing method of electric vacuum display device of plate glass

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Embodiment Construction

[0014] Press as figure 1 As shown, the air-absorbing device is assembled with the components of the air-absorbing glass tube 5, the anti-diffusion shell 6, the supporting tungsten wire 7, the evaporative air getter 8, and the short-circuit ring 9. The degassing device is sealed with a low-melting glass 4 and sintered and sealed at the sealing place of the glass 1 of the ultra-thin vacuum field emission display device. Assembled and sintered structures such as figure 1 , which is also a schematic diagram of an ultra-thin vacuum field emission display device with a getter.

[0015] After these components are sintered into a box, it can be connected to a vacuum system to draw a vacuum. After the degree of vacuum reaches the requirement, leave the proper length of the exhaust glass tube 5 and seal it with flame. Then put the processed ultra-thin tail tube of the vacuum field emission display device, that is, the exhaust glass tube 5, into the heating induction coil of the high-...

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Abstract

The invention belongs to the technical field of electronic devices, and relates to a degassing method for flat glass electric vacuum display devices. In the preparation process of the ultra-thin flat glass vacuum display device, the invention designs a special degassing device on the seal to eliminate the residual gas after vacuuming. First, insert the supporting tungsten wire into the small hole on the evaporable getter, put the short-circuit ring on the evaporable getter, and place the anti-diffusion shell outside the short-circuit ring. Then put the evaporable air getter inserted with the supporting tungsten wire into the glass tube of the suction port. Afterwards, use low-melting point glass to seal and connect the suction glass tube to the sealing place of glass 1. The present invention can not only eliminate the residual gas, but also can not pollute the working space, and can not make the suction glass tube deform in the process of activation of the air getter. The three-proof method is especially suitable for the flat electric vacuum device to treat the residual gas. Elimination performed.

Description

technical field [0001] The invention belongs to the technical field of electronic devices, and relates to a flat glass electric vacuum display, in particular to a gas elimination method for a flat glass electric vacuum display device. Background technique [0002] At present, the getter is indispensable in the production of electric vacuum devices. Generally, the getter with a short-circuit ring is fixed at a suitable place inside the electric vacuum device, so that it is suspended in the electric vacuum device. After the gas glass tube is melted and sealed, a high-frequency heating furnace is used to heat and activate the getter in the short-circuit ring to achieve the purpose of absorbing residual gas and increasing the vacuum degree. However, the flat glass vacuum display device is an ultra-thin design, with a general thickness of about 200 μ, and it is impossible to put a getter in such a small space. The air getter must also be added, which means that a new technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C27/00C03B23/20
Inventor 李志明宋航蒋红缪国庆赵海峰
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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