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Electrode of electronic gun and electronic gun therewith

An electron gun and electrode technology, applied in the field of electron guns, can solve the problem of reducing the white balance characteristic CRT resolution, etc.

Inactive Publication Date: 2005-02-09
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal expansion moves the position of the electron beam through holes RH, GH and BH arranged in series with each other, causing thermal drift, so that the path of the electron beam through the electron beam through holes is moved, which reduces the white balance characteristics and the resolution of the CRT Rate

Method used

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  • Electrode of electronic gun and electronic gun therewith
  • Electrode of electronic gun and electronic gun therewith
  • Electrode of electronic gun and electronic gun therewith

Examples

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Embodiment Construction

[0023] Such as figure 1 , 4 As shown in and 5, an electron gun for a cathode ray tube (CRT) includes a cathode structure 11 for emitting thermions, a control electrode 12, a screen electrode 13 and a plurality of focusing electrodes 14 for focusing and accelerating electron beams . Among the electrodes constituting the electron gun, the control electrode 12 adjacent to the cathode structure 11 and the screen electrode 13 is in the shape of a flat plate.

[0024] The electrode 100 as the control electrode 12 includes a first electrode part 110, which is buried in a bead (not shown) to form the main part of the electrode 100, and three second electrode parts 120, 130 connected to the first electrode part 110. and 140 each have an electron beam passing hole.

[0025] At both edges of the first electrode member 110, the first electrode member 110 has a planar portion 111 and a main body 113 having a supporting portion 112 embedded in the bead. Three connection holes 114 , 115 ...

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Abstract

The present invention relates to an electron gun electrode and an electron gun for cathode ray tube. The electron gun comprises a first electrode member having supporting portions protruding from both edges thereof along a lengthwise direction, and three connection holes disposed in series; and second electrode members connected to the connection holes of the first electrode member, and each having a plane portion where electron beam passing holes are formed, and a flange portion formed along the periphery of the plane portion and connected to the periphery of each connection hole of the first electrode member.

Description

technical field [0001] The present invention relates to an electron gun for a cathode ray tube (CRT), and more particularly, to an electrode having an improved structure and an electron gun using the same. Background technique [0002] Generally, an electron gun for a color CRT is mounted on a neck portion of the CRT, and emits electron beams for exciting phosphor layers. Such as figure 1 As shown, the electron gun includes a three-pole part composed of a cathode structure 11, a control electrode 12 and a screen electrode 13, and a plurality of focusing electrodes 14 constitute a main electron lens. [0003] In the electron gun of the color CRT having the above structure, since a predetermined voltage is applied to the respective electrodes, the electron beams emitted from the electron emission material of the cathode structure 11 are focused and accelerated by the electron lens formed between the respective electrodes, according to The scanning position of the fluorescent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/48
CPCH01J29/485H01J29/48
Inventor 赵锡来
Owner SAMSUNG SDI CO LTD