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Getter for cathode ray tube

A cathode ray tube and getter technology, applied in the field of getter flash evaporation, can solve problems such as brightness damage and abnormal color

Inactive Publication Date: 2003-01-22
SAMSUNG ELECTRONICS DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned existing method, since the opening of the container 14 containing the active metal faces the shadow mask 6, the active metal evaporated during the getter flashing process diffuses to the shadow mask 6.
As a result, the evaporated metal passing through the beam guide holes of the shadow mask 6 is deposited on the phosphor layer 5 coated on the face plate 4, causing color irregularities and brightness damage

Method used

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  • Getter for cathode ray tube
  • Getter for cathode ray tube
  • Getter for cathode ray tube

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Embodiment Construction

[0026] Detailed description of the preferred embodiment

[0027] In the following detailed description, only the preferred embodiment of the invention has been illustrated and described, simply explaining the best mode contemplated by the inventors for carrying out the invention. As will be realized, the invention is capable of modifications in various other respects, all without departing from the invention. Accordingly, the drawings and description are to be regarded as illustrative only, and not as restrictive.

[0028] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0029] now refer to figure 1 A getter flashing (getter flashing, also known as getter injection) method for a CRT according to a first preferred embodiment of the present invention will be described in detail with reference to FIG. 2 .

[0030] Such as figure 1 As shown in FIG. 2, the getter...

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Abstract

A getter flashing method for a cathode ray tube includes the steps of loading a receptacle of the getter with an active metal, positioning the getter in a funnel such that the active metal is diffused toward an inner surface of the funnel in the vicinity of the getter, and heating and vaporizing the active metal. The getter has a receptacle for receiving the active metal and a support for supporting the receptacle. The receptacle and the support are connected to each other such that an opening portion of the receptacle is directed toward the neighboring funnel portion.

Description

field of invention [0001] This application is based on Application No. 97-34928 filed with the Korean Industrial Property Office on July 25, 1997, the contents of which are incorporated herein by reference. [0002] The present invention relates to a getter flashing method for a cathode ray tube (CRT) and a getter for implementing the method. Specifically, it relates to a method of getter flash evaporation utilizing a getter equipped with an active metal so that the active metal evaporates and diffuses toward the inner surface of the funnel-shaped bulb adjacent to the getter, thereby preventing brightness Deterioration and color bar defects occur. Background technique [0003] Typically, in the CRT manufacturing process, a getter flash operation is performed after a gas or air evacuation step to maintain a high vacuum inside the CRT. [0004] Figure 5 is a cross-sectional view of a CRT showing the existing getter flash method. Such as Figure 5 As ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/39H01J7/18H01J9/385H01J29/94
CPCH01J9/385H01J7/186H01J2209/385H01J7/18H01J29/94
Inventor 金真年
Owner SAMSUNG ELECTRONICS DEVICES CO LTD