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Method for manufacturing a filter for shielding electromagnetic interference and method for manufacturing a display device provided with the filter for shielding electromagnetic interference

A technology of electromagnetic shielding and filters, applied in optical/shielding devices, AC plasma display panels, magnetic field/electric field shielding, etc., can solve problems such as display failure and human injury, and achieve the effect of maximizing the effect

Inactive Publication Date: 2009-12-16
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Electromagnetic interference causes malfunction of the display and causes harm to the human body

Method used

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  • Method for manufacturing a filter for shielding electromagnetic interference and method for manufacturing a display device provided with the filter for shielding electromagnetic interference
  • Method for manufacturing a filter for shielding electromagnetic interference and method for manufacturing a display device provided with the filter for shielding electromagnetic interference
  • Method for manufacturing a filter for shielding electromagnetic interference and method for manufacturing a display device provided with the filter for shielding electromagnetic interference

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preparation example Construction

[0060] Since a plasticizing step is included in the offset printing method of manufacturing a filter for shielding electromagnetic interference according to an embodiment of the present invention, a resin substrate having poor heat resistance cannot be used in the offset printing method. Therefore, the glass substrate 20 is used as a substitute for the resin substrate. Since those skilled in the art can understand other contents of the offset printing method, details thereof will not be repeated here.

[0061] When preparing a filter for shielding electromagnetic interference using photolithography instead of offset printing, a copper film is first adhered to a resin film. Then, a dried resist film is laminated on the copper film and subjected to an exposure step, a development step, an etching step, and a lift-off step to form a pattern. Therefore, the preparation steps are complicated, and the yield is not good.

[0062] In addition, when a filter for shielding electromagn...

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PUM

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Abstract

The present invention relates to a method for manufacturing a filter for shielding electromagnetic interference. The method for manufacturing a filter for shielding electromagnetic interference includes i) providing a gravure roll in which a mesh-shaped groove is formed; ii) filling the groove with a conductive paste; iii) providing a blanket roll that is opposed to the gravure roll and rotates in a direction that is opposite to a rotating direction of the gravure roll; iv) transferring the conductive paste to the blanket roll while rotating the gravure roll; v) providing a glass substrate; vi) coating the conductive paste on the glass substrate while the blanket roll moves on the glass substrate; and vii) forming a shielding member of a single layer that shields electromagnetic interference on the glass substrate by plasticizing the conductive paste.

Description

technical field [0001] The invention relates to a method for preparing a filter for shielding electromagnetic interference by using an offset printing method, and a method for preparing a display equipped with the filter for shielding electromagnetic interference. Background technique [0002] Recently, various types of displays have been developed. For example, plasma displays (PDPs), liquid crystal displays (LCDs), organic light emitting displays (OLEDs), and the like have been developed. Due to the thinness and light weight of these displays, they are used in many products that need to display images. [0003] Meanwhile, electromagnetic interference (EMI) is emitted from many electronic components contained in the display. Electromagnetic interference causes malfunction of the display and damages the human body. Therefore, a filter for shielding electromagnetic interference is attached to the display for shielding electromagnetic interference. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J17/49
CPCB41F35/04H01J11/10H01J11/44H01J2211/446H05K9/0096
Inventor 金奉玘田承勋白娜英李宗旭朴赞硕卞景绿郑粲潣
Owner DONGJIN SEMICHEM CO LTD