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Panel for cathode ray tube and cathode ray tube using said panel

A cathode ray and panel technology, which is applied in the field of cathode ray tubes and panels for cathode ray tubes, can solve the problems of increased manufacturing cost and difficulty in changing the manufacturing process of glass frit.

Inactive Publication Date: 2004-12-01
SAMSUNG CORNING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to keep the radiation dose of X-rays below 0.5mR / h, the absorption coefficient of X-rays with a wavelength of 0.06nm is, for example, 32 to 34cm -1 Panels are produced from glass gobs with a high composition, but there are problems of difficulty in changing the glass gob manufacturing process and increased manufacturing costs

Method used

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  • Panel for cathode ray tube and cathode ray tube using said panel
  • Panel for cathode ray tube and cathode ray tube using said panel

Examples

Experimental program
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Embodiment Construction

[0013] Hereinafter, preferred embodiments of a panel for a cathode ray tube according to the present invention and a cathode ray tube using the panel will be described in detail with reference to the accompanying drawings.

[0014] First, refer to figure 1 and figure 2 , the panel 20 used for the cathode ray tube 10 according to the present invention is composed of the following parts: a surface part 21, which is coated with an imaging phosphor for displaying images; Extending to the rear, it has a sealing edge 22 ; a mixed fillet portion 24 is used to connect the surface portion 21 and the side edge portion 23 . When viewed from the front, the panel 20 has a shape similar to a rectangle with two short sides and two long sides parallel to each other.

[0015] Such as figure 2 As shown, the funnel 30 of the cathode ray tube 10 is composed of a body portion 32 having a sealing edge 31 joined to the sealing edge 22 of the panel 20, and a yoke portion 33 extending on the rear...

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PUM

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Abstract

A front glass for a cathode ray tube and a cathode ray tube using the face glass are provided to reduce the thickness and weight of the cathode ray tube by attaching a flat glass to a face portion of the front glass and to satisfy the quantity of X-ray emission and explosion-proof characteristic prescribed by IEC(International Electrotechnical Commission). A front glass(20) of a cathode ray tube(10) includes a face portion(21) for displaying images, a skirt portion(23) extended from the edge of the face portion backward, and a blend round portion(24) connecting the face portion to the skirt portion. X-ray absorption coefficient of the front glass is 28 to 34. A flat glass(50) is attached to the front side of the face portion such that emission of X-ray is restrained. X-ray absorption coefficient of the flat glass is 20 to 34.

Description

technical field [0001] The present invention relates to a panel for a cathode ray tube and a cathode ray tube using the same, and more particularly to a panel for a cathode ray tube which can effectively increase the weight reduction ratio by attaching flat glass to the surface of the panel, and the panel using the panel cathode ray tube. Background technique [0002] As we all know, the glass bulb for cathode ray tubes used in the manufacture of color TVs and computer monitors basically includes three components, namely the panel of the perspective image (Panel), and the conical funnel (Panel) connected behind the panel. Funnel) and a tubular neck (Neck) connected to the apex of the funnel. The panels and funnels are made by press molding a block of molten glass called a glass gob into the desired size and shape. [0003] Such a panel for a cathode ray tube is composed of a face portion (Face portion) for displaying an image, a skirt portion (Skirt portion) extending from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J29/86H01J29/89
Inventor 金在善秋景文张圭喆
Owner SAMSUNG CORNING CO LTD