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Image display device

A technology for image display devices and substrates, which is applied in the direction of image/graphic display tubes, discharge lamps, discharge tubes, etc., and can solve problems such as distorted electron beam trajectories, deterioration of screen image quality, and reduced output of image display devices.

Inactive Publication Date: 2006-06-21
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Charged spacers attract or repel electrons passing around them, distorting the trajectory of the electron beam and deteriorating display quality
[0008] Thus, the spacers are effective in stabilizing the flat vacuum container, but they reduce the yield of the image display device and deteriorate the screen image quality

Method used

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Examples

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Embodiment Construction

[0037] The invention will be described in more detail hereinafter with reference to the accompanying drawings, in which examples of embodiments of the invention are shown.

[0038] Such as Figure 1 to Figure 3 As shown, the image display apparatus according to the first embodiment of the present invention is formed with a vacuum chamber (or vacuum vessel) 16 . The vacuum container 16 includes a first substrate 10 and a second substrate 12 facing each other while interposing a first region 100 therebetween, and a reinforcing member 14 attached to the rear of the first substrate 10 and forming a second region 200 together with the first substrate 10 .

[0039] The first area 100 and the second area 200 refer to spatial areas divided by the first substrate 10 within the vacuum container 16 . One or more via holes 18 are formed on the first substrate 10 to connect the first region 100 and the second region 200 to each other.

[0040] More specifically, the electron emission un...

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PUM

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Abstract

An image display device in which a region of an electron emission region and a region of a phosphor layer are separated from each other by a predetermined distance without installing a spacer therein. The image display device includes a second substrate having a first substrate, a first side arranged facing the first substrate so as to form a first region together with the first substrate, and a second side arranged facing the first substrate so as to be connected to the first substrate. Vacuum containers that together form the reinforcing elements of the second region. The electron emission unit is formed on the surface of the first substrate, and the light emitting unit is formed on the surface of the second substrate. The first substrate has one or more via holes for connecting the first region and the second region to each other.

Description

technical field [0001] The present invention relates to an image display device, and more particularly, to an image display device having a vacuum chamber (or vacuum container) capable of separating an electron emission region from a phosphor layer by a predetermined distance without installing a spacer therebetween. Background technique [0002] In general, an image display device that emits light using electrons has a vacuum chamber (or vacuum container) including an electron emission region and a phosphor layer. Electrons emitted from the electron emission region excite the phosphor layer, thereby emitting light or displaying a desired image. [0003] According to the shape of the vacuum container, image display devices are classified into types such as cathode ray tube (CRT) display devices using spherical vacuum containers and types such as vacuum fluorescent display (VFD) devices and field emission array (FEA) electron emission display devices using front and back. Ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J31/12H01J29/00
CPCH01J29/862H01J29/94H01J2329/861H01J2329/941H01J2329/945
Inventor 尹海洙申淳澈裴埈秀池现喆李元馥吴爀根郑升喜边昌连河槿东林宗焄宫崎秀树
Owner SAMSUNG SDI CO LTD