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Image display apparatus and method of manufacturing the same

An image display device and manufacturing method technology, applied in the direction of image/graphic display tube, identification device, cold cathode manufacturing, etc., can solve the problems of slow exhaust speed, poor vacuum degree, etc., achieve high airtightness and improve sealing performance Effect

Inactive Publication Date: 2005-04-20
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when evacuating the flat case through the exhaust pipe, the evacuation speed is extremely slow and the degree of vacuum that can be achieved is poor, so there are problems in mass production and characteristics.

Method used

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  • Image display apparatus and method of manufacturing the same
  • Image display apparatus and method of manufacturing the same
  • Image display apparatus and method of manufacturing the same

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Embodiment Construction

[0031] Hereinafter, an embodiment in which an image display device according to the present invention is used in an FED will be described in detail with reference to the drawings.

[0032] Such as Figure 1 to Figure 3 As shown, this FED has a front substrate 11 and a rear substrate 12 each composed of rectangular glass plates as insulating substrates. The substrates 11 and 12 are arranged facing each other at a distance of about 1.5 to 3.0 mm. Peripheral portions of the front substrate 11 and the rear substrate 12 are bonded to each other via the rectangular frame side walls 18 to form a flat rectangular vacuum envelope 10 in which a vacuum state is maintained.

[0033] The interior of the vacuum envelope 10 is provided with a plurality of plate-shaped supporting members 14 that support the load of atmospheric pressure applied to the rear substrate 12 and the front substrate 11 . These support members 14 extend in a direction parallel to the short sides of the vacuum envelo...

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PUM

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Abstract

A vacuum envelope (10) of an image display device has a rear substrate (12) and a front substrate (11) disposed opposite to each other, and a plurality of electron emission elements (22) are arranged in the vacuum envelope. Peripheral parts of the front substrate and the back substrate are sealed by a sealing layer (33), and a diffusion layer containing sealing layer components is formed on the board side of the interface between at least one of the front substrate and the back substrate and the sealing layer.

Description

field of invention [0001] The present invention relates to an image display device including a case in which two substrates arranged to face each other, and a plurality of image display elements provided inside the case, and a method for manufacturing the same. technical background [0002] In recent years, various flat display devices have been developed as next-generation lightweight and thin display devices replacing cathode ray tubes (hereinafter referred to as CRTs). Among such flat-panel display devices, there are liquid crystal displays (hereinafter referred to as LCDs) that control the intensity of light by utilizing the orientation of liquid crystals, and plasma display panels (hereinafter referred to as PDPs) that use ultraviolet rays from plasma discharges to make phosphors emit light. ), a field emission display (hereinafter referred to as FED) that uses an electron beam of a field emission type electron emission element to make a phosphor emit light, and a surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J5/24H01J9/26H01J29/86H01J31/12
CPCH01J5/24H01J9/261H01J29/86H01J31/127H01J31/12H01J9/26G09F9/30
Inventor 山田晃义清野和之横田昌广西村孝司
Owner KK TOSHIBA