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KR100451583B1 - Antenna for electromagnetic wave blocking of image display device and manufacturing method - Google Patents
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KR100451583B1 - Antenna for electromagnetic wave blocking of image display device and manufacturing method - Google Patents

Antenna for electromagnetic wave blocking of image display device and manufacturing method Download PDF

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KR100451583B1
KR100451583B1 KR1019970072166A KR19970072166A KR100451583B1 KR 100451583 B1 KR100451583 B1 KR 100451583B1 KR 1019970072166 A KR1019970072166 A KR 1019970072166A KR 19970072166 A KR19970072166 A KR 19970072166A KR 100451583 B1 KR100451583 B1 KR 100451583B1
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electromagnetic wave
conductor
crt
electromagnetic
antenna
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KR19990052652A (en
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박원구
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엘지전자 주식회사
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/04Screened antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/245Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

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Abstract

본 발명은 모니터 등과 같은 영상 표시기기의 전자파 차단장치에 관한 것으로, 특히 모니터의 CRT(브라운관)로부터 방사되는 전자파를 효과적으로 제거할 수 있도록 CRT의 전자파를 검출하고, 이 검출된 전자파에 상응하는 다른 전자파 신호를 발생시켜 상기 CRT의 전자파와 상쇄시킬 수 있도록 한 영상 표시기기의 전자파 차단용 안테나 및 그 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave shielding device of an image display device such as a monitor. In particular, the electromagnetic wave of the CRT is detected to effectively remove the electromagnetic wave emitted from the CRT (Brown Tube) of the monitor, and the other electromagnetic wave corresponding to the detected electromagnetic wave. The present invention relates to an antenna for shielding electromagnetic waves of a video display device capable of generating a signal to cancel an electromagnetic wave of the CRT, and a method of manufacturing the same.

기구물 또는 코팅을 통한 전자파 차폐 및 네거티브 펄스에 의한 전자파 차폐 방법에 의해서는 전자파를 확실하게 차폐하기 어려우며, 또한 TCO 규격에 대응하도록 상기와 같은 장치를 구현하는 데에는 작업 상의 어려움이 수반된다.It is difficult to reliably shield electromagnetic waves by the electromagnetic shielding method through the apparatus or the coating and the electromagnetic shielding method by the negative pulse, and it is also difficult to implement such a device to comply with the TCO standard.

본 발명은 이와 같은 점을 감안하여 CRT의 전면으로 방사되는 전자파의 검출 및 이 검출된 전자파에 따른 전자파 제거용 신호를 제공할 수 있도록 안테나를 구성하고, 이와 같이 구성된 안테나를 필름 형태로 취하여 간단하면서도 효과적으로 전자파를 차단할 수 있는 효과를 얻는 것이다.In view of the above, the present invention configures an antenna to provide a signal for detecting electromagnetic waves radiated to the front of the CRT and a signal for removing electromagnetic waves according to the detected electromagnetic waves. The effect is to effectively block electromagnetic waves.

Description

영상 표시기기의 전자파 차단용 안테나 및 그 제조 방법Antenna for shielding electromagnetic waves of video display devices and manufacturing method thereof

본 발명은 모니터 등과 같은 영상 표시기기의 전자파 차단장치에 관한 것으로, 특히 모니터의 CRT로부터 방사되는 전자파를 효과적으로 제거할 수 있도록 CRT의 전자파를 검출하고, 이 검출된 전자파에 상응하는 다른 전자파 신호를 발생시켜 CRT의 전자파와 상쇄시킬 수 있도록 한 영상 표시기기의 전자파 차단용 안테나 및 그 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave shielding device of a video display device such as a monitor. In particular, the electromagnetic wave of the CRT is detected to effectively remove the electromagnetic wave emitted from the CRT of the monitor, and other electromagnetic signals corresponding to the detected electromagnetic wave are generated. The present invention relates to an antenna for shielding electromagnetic waves of a video display device, and a method of manufacturing the same, to offset the electromagnetic waves of a CRT.

일반적으로, 전자기기가 인체에 해를 주는 가장 큰 영향 중 하나는 전자파이다.In general, one of the biggest impacts of electronic devices on the human body is electromagnetic waves.

근래에, PC의 보급이 급증함에 따라, 모니터에서 발생되는 전자파의 제거 문제가 중요 관심사로 대두되고 있다.In recent years, as the spread of PCs increases rapidly, the problem of eliminating electromagnetic waves generated from monitors has become an important concern.

이에 따라, 인체에 유해한 전자파에 대한 국제 규격(MPR 또는 TCO)은 강화되고 있으며, 모니터에서 발생되는 전자파를 제거하는 다양한 기술이 개발되고 있다.Accordingly, international standards (MPR or TCO) for electromagnetic waves harmful to the human body are being strengthened, and various technologies for removing electromagnetic waves generated from a monitor have been developed.

종래에는 한 예로 상기한 바와 같이 모니터에서 발생되는 전자파를 기구물에 의해 차폐하고 모니터의 프론트 커버를 코팅함으로써 차단했다.Conventionally, as an example, as described above, electromagnetic waves generated by the monitor are shielded by an apparatus and blocked by coating the front cover of the monitor.

또 다른 예로는 고전압 발생 트랜스 포머의 코어에 와이어를 감아서 네거티브 펄스를 발생시키고, 이와 같이 발생된 네거티브 펄스를 CRT의 전면부에 인가시켜 CRT에서 발생하는 전기장 및 자기장을 네거티브 펄스에 의해 상쇄시켰다.In another example, a negative pulse was generated by winding a wire around a core of a high voltage generating transformer, and applying the generated negative pulse to the front side of the CRT to cancel the electric and magnetic fields generated by the CRT by the negative pulse.

그러나, 상기한 바와 같은 기구물 또는 코팅을 통한 전자파 차폐와 네거티브 펄스에 의한 전자파 차폐 방법은 모두 전자파를 확실하게 차폐하지 못하며, 전자파 규제에 관한 더욱 강화된 TCO 규격에 적절히 대응하지 못하며, 게다가 상기와 같은 장치를 구현하는 데 있어서도 작업 상의 어려움이 수반되었다.However, neither the electromagnetic shielding through the apparatus or the coating as described above and the electromagnetic shielding method by the negative pulse reliably shield the electromagnetic waves, and do not adequately comply with the more stringent TCO standards on electromagnetic regulation. Implementing the device also involved some difficulties.

본 발명에서는 이와 같은 점을 감안하여, CRT의 전면부에 이 CRT의 전면으로 방사되는 전자파의 검출 및 이 검출된 전자파에 따른 전자파 제거용 신호를 제공할 수 있도록 안테나를 구성하고, 이 안테나의 구조를 필름 형태로 취하여 간단히 CRT에 결합시킬 수 있도록 함은 물론, 전자파의 효과적인 검출과 이에 따른 전자파 제거용 신호를 효과적으로 CRT에 방사시킬 수 있도록 하는 간단하면서도 확실한 전자파 차폐 장치를 제공하는 것이다.In view of the above, in the present invention, the antenna is configured to provide the front surface of the CRT with the detection of the electromagnetic radiation radiated to the front of the CRT and the signal for removing the electromagnetic wave according to the detected electromagnetic wave. It is to provide a simple and reliable electromagnetic shielding device that can be taken in the form of a film to be simply coupled to the CRT, as well as to effectively radiate the signal for the effective detection of electromagnetic waves and the resulting electromagnetic wave removal to the CRT.

도 1은 본 발명의 영상 표시기기의 저주파의 전자파 차단 장치의 구성을 나타낸 도면1 is a diagram showing the configuration of a low frequency electromagnetic wave shielding device of a video display device of the present invention;

도 2는 본 발명의 일실시예의 안테나 구조를 나타낸 도면.2 is a view showing an antenna structure of an embodiment of the present invention.

도 3은 도 2의 A-A'선을 따라 취해진 단면도.3 is a cross-sectional view taken along the line AA ′ of FIG. 2;

도 4는 본 발명에 따른 안테나 제조 공정을 나타낸 도면.4 is a view showing an antenna manufacturing process according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1: CRT1: CRT

2: 전면 캐비넷2: front cabinet

3: 안테나3: antenna

3a: 절연필름3a: insulation film

4,5: 도선4,5: lead wire

4a: 커넥터4a: connector

6: 전자파 제거회로6: electromagnetic wave elimination circuit

6a: 버퍼 회로6a: buffer circuit

6b: 반전 증폭회로6b: inverted amplifier circuit

C1,C2: 콘덴서C1, C2: condenser

본 발명의 영상 표시기기의 전자파 차단용 안테나는 CRT의 외측 전면에 구비되는 두 장의 절연필름과, 이 절연필름 사이에 부착되어 CRT로부터 방사되는 전자파를 검출하는 서로 분리된 각각의 도전체와, 이들 도전체와 접속되는 각각의 도선을 개재시켜 상기 도전체 중 한 도전체로부터 검출된 전자파를 다른 도전체로부터 검출된 전자파와 상쇄시키도록 한 전자파 제거회로를 포함하는 것을 특징으로 한다.The electromagnetic wave shielding antenna of the image display device of the present invention includes two insulating films provided on the outer front surface of the CRT, and respective conductors separated from each other to detect electromagnetic waves emitted from the CRT, and And an electromagnetic wave removing circuit for canceling the electromagnetic wave detected from one of the conductors with the electromagnetic wave detected from the other conductor via each conductor connected to the conductor.

또한, 본 발명의 전자파 차단용 안테나 제조 방법은 두 장의 절연필름 중 어느 하나의 외부 표면을 따라 부착되는 각 도전체의 일부를 상기 절연필름의 도선 결합부와 정렬시켜 각각 부착시키는 단계와, 상기 절연필름 상의 도전체 위에 또다른 절연필름을 부착시키는 단계와, 상기 도선 결합부 상의 외부로 돌출된 각 도전체에 커넥터를 개재시켜 전자파를 상쇄시키는 신호를 발생시키는 전자파 제거회로를 접속시키는 단계를 포함하는 특징으로 한다.In addition, the method for manufacturing an antenna for electromagnetic wave shield of the present invention comprises the steps of attaching a portion of each conductor attached along the outer surface of any one of the two insulating films aligned with the wire coupling portion of the insulating film, respectively, and the insulation Attaching another insulating film over the conductor on the film, and connecting an electromagnetic wave removing circuit for generating a signal to cancel the electromagnetic wave through a connector to each conductor projecting outward on the conductor coupling portion; It features.

도 1 내지 도 3은 본 발명에 따른 영상 표시기기의 전자파 차단용 안테나의 실시예를 나타낸 것으로, 먼저 도 1과 도 2를 참조로 하여 그 구성을 설명하면 다음과 같다.1 to 3 illustrate an embodiment of an antenna for shielding electromagnetic waves of a video display device according to the present invention. First, the configuration thereof will be described with reference to FIGS. 1 and 2.

본 발명의 영상 표시기기의 전자파 차단용 안테나는 CRT(1)의 외부 전측에 구비되는 전면 캐비넷(2)과, 이 전면 캐비넷(2)과 CRT(1)의 사이에 부착되는 안테나(3)와, 이 안테나(3)와 도선(4)을 통해 접속되는 전자파 제거회로(6)로 이루어진다.The electromagnetic wave shielding antenna of the video display device of the present invention includes a front cabinet (2) provided on the outside front side of the CRT (1), and an antenna (3) attached between the front cabinet (2) and the CRT (1); And an electromagnetic wave elimination circuit 6 connected through the antenna 3 and the conductive wire 4.

상기 안테나(3)는 전면 캐비넷(2)의 윤곽과 상응하는 형태를 따르는 두 장의 절연필름(3a,3b)의 사이에 덮여지는 구조로 이루어지며, 또한 CRT(1)로부터 일부의 전자파를 검출하는 도전체(3c)와 CRT(1)로부터 다른 일부의 전자파를 검출하는 도전체(3d)로 이루어진다. 상기 두 장의 절연필름(3a,3b) 중 어느 하나는 도전체(3c,3d)의 일부가 외부로 돌출되어 도선(4,5)과 연결되어질 수 있도록 도선 결합부(3e,3f)가 형성되며, 상기 도전체(3c,3d)는 또한 절연필름(3a 또는 3b)에 형성된 도선 결합부(3e,3f)와 대응되는 형상으로 이루어진다.The antenna 3 has a structure covered between two sheets of insulating films 3a and 3b along the shape corresponding to the contour of the front cabinet 2 and also detects some electromagnetic waves from the CRT 1. It consists of the conductor 3c and the conductor 3d which detects some other electromagnetic wave from the CRT 1. One of the two insulating films 3a and 3b has conductive line coupling portions 3e and 3f formed so that a part of the conductors 3c and 3d may protrude outward and be connected to the conductive wires 4 and 5. The conductors 3c and 3d also have a shape corresponding to the conductive line coupling portions 3e and 3f formed on the insulating film 3a or 3b.

상기 도전체(3c,3d)의 형상은 전체적으로 절연필름(3a,3d)의 형상과 대응되고, 각 절연필름(3a,3b)은 서로 일정간격으로 분리되어 있으며, 전자파 제거 신호를 방사시키기 위한 도전체(3d)의 형상은 절연필름(3a,3b)에 대해 전체적으로 넓게분포되어 있다.The shape of the conductors 3c and 3d corresponds to the shape of the insulating films 3a and 3d as a whole, and each of the insulating films 3a and 3b is separated from each other by a predetermined interval, and conducts electricity to emit an electromagnetic wave removing signal. The shape of the sieve 3d is widely distributed with respect to the insulating films 3a and 3b as a whole.

한편, 상기 전자파 제거회로(6)는 도선(4)을 개재시켜 상기 안테나(3)의 도전체(3c)와 연결되는 콘덴서(C1)와, 이 콘덴서(C1)와 연결되는 버퍼회로(6a)와, 이 버퍼회로(6a)와 연결되는 반전 증폭회로(6b)와, 도선(5)을 개재시켜 상기 안테나(3)의 도전체(3d)와 연결되는 콘덴서(C2)로 이루어진다.On the other hand, the electromagnetic wave removing circuit 6 includes a capacitor C1 connected to the conductor 3c of the antenna 3 via a conductor 4, and a buffer circuit 6a connected to the capacitor C1. And a condenser C2 connected to the conductor 3d of the antenna 3 via the inverted amplifier circuit 6b connected to the buffer circuit 6a and the conductor 5.

상기와 같이 구성되는 본 발명의 전자파 차단용 안테나의 전자파 제거 작용을 설명하면 다음과 같다.Referring to the electromagnetic wave removal action of the electromagnetic wave shielding antenna of the present invention configured as described above are as follows.

먼저, CRT(1)를 작동시키면 CRT(1)의 전면으로부터 전자파가 발생되고, 이 전자파의 일부는 안테나(3)의 도전체(3c)에 검출되게 된다. 이 도전체(3c)에 검출된 전자파는 도선(4)을 통해 전자파 제거회로(6)에 인가된다.First, when the CRT 1 is operated, electromagnetic waves are generated from the front surface of the CRT 1, and a part of the electromagnetic waves is detected by the conductor 3c of the antenna 3. The electromagnetic wave detected by this conductor 3c is applied to the electromagnetic wave removal circuit 6 via the conducting wire 4.

인가된 전자파 신호는 에너지가 매우 미약함으로, 전자파 제거회로(6)의 콘덴서(C1)와 버퍼회로(6a)를 거쳐 반전 증폭 회로(6b)에 인가되어 반전 증폭되게 된다.Since the applied electromagnetic signal is very weak in energy, it is applied to the inversion amplifier circuit 6b through the capacitor C1 and the buffer circuit 6a of the electromagnetic wave removal circuit 6 to be inverted and amplified.

이와 같이 반전 증폭된 전자파 신호는 도선(5)을 통해 CRT(1)의 전면에 부착된 안테나(3)의 도전체(3d)에 전달되어 CRT(1)의 전면에 방사되는 전자파를 상쇄시키게 된다.The inverted and amplified electromagnetic wave signal is transmitted to the conductor 3d of the antenna 3 attached to the front surface of the CRT 1 through the conductive wire 5 to cancel the electromagnetic wave radiated on the front surface of the CRT 1. .

좀더 구체적으로, 상기 안테나의 전자파 상쇄 작용을 설명하면 다음과 같다.More specifically, the electromagnetic wave canceling action of the antenna is as follows.

상기 도전체(3c)를 통해 검출된 전자파를 반전 증폭 회로(6b)에 인가하여 전자파의 위상을 반전시키고 그 크기를 증폭시킨 후, 상기 도전체(3d)에 검출된 전자파와 상쇄시키는 것이다. 이 경우, 상기와 같은 과정을 거치는 데 걸리는 전자파반전 및 증폭 시간은 극히 미미하여, 시간차에 따른 전자파 상쇄 효과의 감소는 일어나지 않는다.The electromagnetic wave detected through the conductor 3c is applied to the inversion amplifier circuit 6b to invert the phase of the electromagnetic wave and amplify the magnitude thereof, and then cancel the electromagnetic wave detected by the conductor 3d. In this case, the electromagnetic inversion and amplification time required to go through the above process is extremely small, so that the effect of canceling the electromagnetic wave with the time difference does not occur.

한편, 상기 도전체(3d)는 CRT(1)의 전면 윤곽을 따라 넓게 디귿자 형태로 배치됨으로써 전자파의 제거가 효과적으로 이루어질 수 있게 된다.On the other hand, since the conductor 3d is disposed in a wide-shaped pattern along the front contour of the CRT 1, the electromagnetic wave can be effectively removed.

본 발명의 전자파 차단용 안테나 제조 방법을 도 4를 참조로 하여 설명하면 다음과 같다.Referring to FIG. 4, a method for manufacturing an antenna for electromagnetic wave blocking according to the present invention is as follows.

두 장의 절연필름(3a,3b) 중 어느 하나의 외부 표면을 따라 부착되는 각 도전체(3c,3d)의 일부를 상기 절연필름(3a,3b)의 도선 결합부(3e,3f)와 정렬시켜 부착시키는 단계와,A portion of each of the conductors 3c and 3d attached along the outer surface of any one of the two insulating films 3a and 3b is aligned with the conductor coupling portions 3e and 3f of the insulating films 3a and 3b. Attaching,

상기 절연필름(3a) 상의 도전체(3c,3d) 위에 또 다른 절연필름(3b)을 부착시키는 단계와,Attaching another insulating film 3b on the conductors 3c and 3d on the insulating film 3a;

상기 도선 결합부(3e,3f) 상의 외부로 돌출된 각 도전체(3c,3d)에, 도선(4,5)과 연결된 커넥터(4a,5a)를 개재시켜, 전자파를 상쇄시키는 신호를 발생시키는 전자파 제거회로(6)를 접속시키는 단계로 이루어진다.The conductors 3c and 3d protruding outward on the conductor coupling portions 3e and 3f are interposed between the connectors 4a and 5a connected to the conductors 4 and 5 to generate a signal for canceling electromagnetic waves. The electromagnetic wave removing circuit 6 is connected.

이와 같은 제조 공정으로 이루어지는 안테나(3)의 조립 순서를 설명하면 다음과 같다.The assembling procedure of the antenna 3 made of such a manufacturing process is as follows.

먼저, 절연필름(3a)의 외부 표면 윤곽을 따라 도전체(3c)와 도전체(3d)를 각각 부착시킨 후, 이들 도전체(3c,3d)가 부착된 절연필름(3a) 위에 절연필름(3b)을 부착시킨다.First, the conductor 3c and the conductor 3d are attached to each other along the outer surface contour of the insulating film 3a, and then the insulating film 3a is placed on the insulating film 3a to which the conductors 3c and 3d are attached. Attach 3b).

여기에서, 도전체(3c,3d)는 절연필름(3a)에 코팅 또는 증착 방법으로 부착되는 것이 바람직하다. 또한 절연필름(3b)은 도전체(3c,3d)가 부착된 절연필름(3a)에 코팅, 증착 또는 접착 방법으로 이루어지는 것이 바람직하다.Here, the conductors 3c and 3d are preferably attached to the insulating film 3a by coating or vapor deposition. In addition, the insulating film 3b is preferably made of a coating, vapor deposition, or adhesion method on the insulating film 3a to which the conductors 3c and 3d are attached.

그런 다음, 절연필름(3a,3b)의 하방에 도전체(3c,3d)의 일부가 노출되게 구비된 도선 결합부(3e,3f)에 전자파 제거회로(6)의 도선(4,5)과 연결된 커넥터(4a,5a)를 각각 접속시킨다.Then, the conducting wires 4 and 5 of the electromagnetic wave removing circuit 6 are connected to the conducting wire coupling portions 3e and 3f provided with a portion of the conductors 3c and 3d exposed under the insulating films 3a and 3b. The connected connectors 4a and 5a are connected respectively.

그런 다음, 절연필름(3a,3b)을 전면 캐비넷(2)에 결합시킨 후 이 결합된 조립체를 CRT(1)의 전면에 부착시키면 된다.Then, the insulating films 3a and 3b may be bonded to the front cabinet 2, and then the bonded assembly may be attached to the front surface of the CRT 1.

물론, 여기에서 먼저 절연필름(3a,3b)을 CRT(1)에 부착시킨 후, 이 절연 필름(3a,3b) 위에 전면 캐비넷(2)을 부착하는 것도 가능하다.Of course, it is also possible to first attach the insulating films 3a and 3b to the CRT 1 and then attach the front cabinet 2 on the insulating films 3a and 3b.

마찬가지로, 먼저 절연필름(3a,3b)과 전면 캐비넷(2)을 CRT(1)에 부착시킨 후, 전자파 제거회로(6)의 커넥터(4a,5a)를 절연필름(3a,3b)의 도선 결합부(3e,3f)와 접속시키는 것도 가능하다.Similarly, first, the insulating films 3a and 3b and the front cabinet 2 are attached to the CRT 1, and then the connectors 4a and 5a of the electromagnetic wave removing circuit 6 are connected to the conductors of the insulating films 3a and 3b. It is also possible to connect with the parts 3e and 3f.

전술한 바와 같이, CRT에 안테나를 설치하여 CRT에서 방사되는 전자파를 검출하고, 이와 같이 검출된 전자파를 이용해 반전 및 증폭된 전자파 제거용 신호를 CRT의 전면에 방사시킴으로써 전자파를 전자파로 효과적으로 상쇄시킬 수 있게 된다.As described above, the antenna can be installed in the CRT to detect electromagnetic waves emitted from the CRT, and the electromagnetic wave can be effectively canceled by the electromagnetic waves by radiating the inverted and amplified electromagnetic wave elimination signals to the front of the CRT using the detected electromagnetic waves. Will be.

또한, 안테나를 CRT의 전면 캐비넷에 간단하게 부착시킬 수 있음으로 해서 구조가 간단해지고 조립성도 개선되는 효과를 얻을 수 있을 뿐만 아니라, 제조 비용도 낮출 수 있게 된다.In addition, by simply attaching the antenna to the front cabinet of the CRT, not only the structure is simplified and the assembly is improved, but also the manufacturing cost can be lowered.

Claims (4)

CRT의 외측 전면에 구비되는 두 장의 절연필름과,Two insulating films provided on the outer front surface of the CRT, 상기 두장의 절연필름 사이에 부착되어 상기 CRT로부터 방사되는 전자파를 검출하는 제1도전체와,A first conductor attached between the two insulating films to detect electromagnetic waves emitted from the CRT; 상기 두장의 절연필름 사이에 부착되어 상기 CRT로부터 방사되는 전자파를 제거하기 위한 전자파 제거용 신호를 출력하는 제2도전체와,A second conductor attached between the two insulating films and outputting a signal for removing electromagnetic waves for removing electromagnetic waves emitted from the CRT; 상기 제1도전체가 검출한 전자파를 반전 증폭하여 전자파 제거용 신호를 생성하고, 그 생성된 전자파 제거용 신호를 상기 제2도전체로 출력하여 방사하는 전자파 제거회로를 포함하는 것을 특징으로 하는 영상 표시기기의 전자파 차단용 안테나.And an electromagnetic wave removing circuit for inverting and amplifying the electromagnetic wave detected by the first conductor to generate an electromagnetic wave removing signal, and outputting and generating the generated electromagnetic wave removing signal to the second conductor. Antenna for shielding electromagnetic waves. 제1항에 있어서, 상기 절연 필름 중 어느 하나는 상기 도전체 중 하나가 상기 전자파 제거회로와 접속되는 도선의 커넥터와 용이하게 결합될 수 있도록 외부로 돌출된 도선 결합부를 형성하고, 이 도선 결합부에 상응하여 상기 도전체의 일부도 돌출 형성되는 것을 특징으로 하는 영상 표시기기의 전자파 차단용 안테나.According to claim 1, wherein any one of the insulating film is formed of a conductor coupling portion protruding outward so that one of the conductors can be easily coupled to the connector of the conductor connected to the electromagnetic wave removing circuit, the conductor coupling portion A part of the conductor is also formed to protrude corresponding to the electromagnetic shielding antenna of the video display device. 제1항에 있어서,The method of claim 1, 상기 제1도전체는 상기 CRT의 전면을 넓게 커버할 수 있도록 절연필름의 외부 표면을 따라 거의 "디귿자(ㄷ 자)" 형태를 취하며,The first conductor has a substantially "dental" shape along the outer surface of the insulating film to cover the entire surface of the CRT, 상기 제2도전체는 상기 제1도전체보다 크기가 작고 직선 형태를 취함을 특징으로 하는 영상표시기기의 전자파 차단용 안테나.And said second conductor is smaller in size than the first conductor and has a straight shape. CRT의 전면에 부착하기 위한 두장의 절연필름 중 어느 하나의 외부 표면을 따라 두 개의 도전체를 부착하는 단계와,Attaching two conductors along the outer surface of any one of the two insulating films for attaching to the front of the CRT, 상기 절연필름위에 부착된 두개의 도전체위에 다른 절연필름을 부착시키는 단계와,Attaching another insulating film on two conductors attached to the insulating film; 상기 두개의 절연필름내의 두개의 도전체와 연결되어 있는 도선 결합부들과 상기 두개의 도전체중 어느 하나가 검출하는 전자파를 증폭 반전하여 다른 도전체로 제공하는 전자파 제거회로를 접속시키는 단계로 구성됨을 특징으로 하는 영상표시기기의 전자파 차단용 안테나 제조 방법.Connecting the conductor coupling parts connected to the two conductors in the two insulating films and the electromagnetic wave removing circuit for amplifying and inverting the electromagnetic wave detected by any one of the two conductors to provide the other conductor. Method of manufacturing an antenna for shielding electromagnetic waves of an image display device.
KR1019970072166A 1997-12-23 1997-12-23 Antenna for electromagnetic wave blocking of image display device and manufacturing method Expired - Fee Related KR100451583B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970701345A (en) * 1994-12-16 1997-03-17 안자이 구니오 Inspection method of plumbing elements by electromagnetic waves
KR19990015877U (en) * 1997-10-21 1999-05-15 전주범 Monitor electromagnetic wave shield

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970701345A (en) * 1994-12-16 1997-03-17 안자이 구니오 Inspection method of plumbing elements by electromagnetic waves
KR19990015877U (en) * 1997-10-21 1999-05-15 전주범 Monitor electromagnetic wave shield

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