KR100462739B1 - A LCD monitor - Google Patents
A LCD monitor Download PDFInfo
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- KR100462739B1 KR100462739B1 KR10-2002-0054538A KR20020054538A KR100462739B1 KR 100462739 B1 KR100462739 B1 KR 100462739B1 KR 20020054538 A KR20020054538 A KR 20020054538A KR 100462739 B1 KR100462739 B1 KR 100462739B1
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- crystal panel
- electromagnetic shielding
- crystal monitor
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/13332—Front frames
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133334—Electromagnetic shields
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/46—Fixing elements
- G02F2201/465—Snap -fit
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
본 발명은 전자파 차폐구조를 개선한 액정 모니터에 관한 것으로, 프런트 케이스와 액정 패널의 사이에 전자파 차폐수단(shield)으로서, 프런트 케이스의 내측 테두리와 액정 패널의 외측 테두리 사이에 양자의 도전적인 접촉에 의해 그라운딩이 가능하도록 도전재를 코팅한 도전층을 형성하여 전자파 차폐 효과를 보다 높일 수 있도록 함.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal monitor having an improved electromagnetic shielding structure. By forming a conductive layer coated with a conductive material to enable grounding to enhance the electromagnetic shielding effect.
Description
본 발명은 액정 모니터에 관한 것으로서, 보다 상세하게는 프런트 케이스와 액정 패널 사이의 전자파 차폐구조가 개선된 액정 모니터에 관한 것이다.The present invention relates to a liquid crystal monitor, and more particularly, to a liquid crystal monitor having an improved electromagnetic shielding structure between the front case and the liquid crystal panel.
일반적으로, 텔레비젼 세트나 컴퓨터 모니터와 같은 가전기기 등의 전자제품은 작동중 전자파를 발생시켜 소위, 전자파 장애(이하, EMI; Electromagnetic Interference)를 유발하게 된다. 이러한 EMI는 주변의 다른 기기에 악영향을 미쳐 노이즈나 오작동 등의 원인으로 작용하며, 특히 항공기나 의료기 등과 같은 정밀기기에서는 보다 심각한 부작용을 유발시키는 것으로 알려져 있다.In general, electronic products such as home appliances such as television sets and computer monitors generate electromagnetic waves during operation, causing so-called electromagnetic interference (hereinafter referred to as EMI). This EMI adversely affects other peripheral devices, causing noise or malfunction, and is known to cause more serious side effects in precision devices such as aircraft and medical devices.
따라서, 상술한 바와 같은 EMI 문제를 해소하거나 극소화하기 위해서는 전자기기의 제조과정에서 전자파를 효과적으로 차폐시키는 것이 필수적인 사항으로 대두되고 있다.Therefore, in order to solve or minimize the EMI problem described above, it is emerging as an essential matter to effectively shield the electromagnetic waves in the manufacturing process of the electronic device.
통상, 전자기기의 전자파 차폐(shielding) 기술은 통상 불요전자파의 발생원과 침입경로의 파악 결과에 따라 대체적으로 노이즈필터의 사용이나 흡수패드(EMI absorber pad) 또는 프레임 그라운드(ground)를 통한 대책이 주로 적용되고 있다.In general, the electromagnetic shielding technology of the electronic device is usually based on the use of noise filters or the measures through the absorber pad or the frame ground, depending on the source of the unwanted electromagnetic wave and the result of the intrusion path. Is being applied.
한편, 컴퓨터 등의 출력수단으로서 영상을 디스플레이하기 위한 영상표시장치로 사용되고 있는 액정 모니터의 경우, 도 1에 도시한 바와 같은 전자파 차폐 구조를 가지고 있다.On the other hand, the liquid crystal monitor used as an image display apparatus for displaying an image as an output means such as a computer has an electromagnetic shielding structure as shown in FIG.
도 1을 참조하면, 종래의 통상적인 액정 모니터(100)는 영상을 표시하도록 모듈화되어 있는 액정 패널(110)과, 그 액정 패널(110)을 전면과 후면에서 각각 지지해 주기 위한 프런트 케이스(120) 및 후방 커버(130)와, 상기 액정 패널(110)을 구동하기 위한 콘트롤러로서 상기 액정 패널(110)과 후방 커버(130)의 사이에 개재되도록 설치되는 메인 회로기판(PCB; 140)을 포함한다.Referring to FIG. 1, a conventional liquid crystal monitor 100 includes a liquid crystal panel 110 that is modularized to display an image, and a front case 120 that supports the liquid crystal panel 110 from the front and the rear, respectively. ) And a rear cover 130 and a main circuit board (PCB) 140 installed to be interposed between the liquid crystal panel 110 and the rear cover 130 as a controller for driving the liquid crystal panel 110. do.
상술한 바와 같은 구성에 있어서, 상기 프런트 케이스(120)와 상기 액정 패널(110)의 사이에는 양자 사이에 기구적인 갭이 발생하게 되므로, 이러한 기구적갭을 메워주면서 전자파를 차폐하기 위한 방편으로 몰드 프레임(150)이 개재되도록 설치된다. 다른 한편으로는, 상기 후방 커버(130)와 메인 PCB(140)의 사이와 같은 위치에 별도의 쉴드판넬(shield pannel; 미도시)이 개재되도록 설치되기도 한다.In the above-described configuration, since a mechanical gap is generated between the front case 120 and the liquid crystal panel 110, a mold frame is provided as a means for shielding electromagnetic waves while filling the mechanical gap. 150 is installed to be interposed. On the other hand, a separate shield panel (not shown) may be installed at the same position between the rear cover 130 and the main PCB 140.
그런데, 상기 프런트 케이스(120)는 통상 전도성이 높은 알루미늄 샤시를 사용하는데, 예컨대 절연을 위해 애노다이징(anodizing)과 같은 화학적 코팅처리를 하게 된다.However, the front case 120 typically uses a highly conductive aluminum chassis, for example, chemical coating such as anodizing for insulation.
따라서, 상기 프런트 케이스(120)와 상기 몰드 프레임(150)은 그라운딩(grounding) 처리가 되어 있지 않은 상태로 되기 때문에 EMI 차폐 효과가 저하되는 문제점이 있다.Therefore, since the front case 120 and the mold frame 150 are not grounded, there is a problem that the EMI shielding effect is lowered.
따라서, 본 발명은 상술한 바와 같은 종래 액정 모니터의 전자파 차폐 구조가 가지는 문제점을 감안하여 이를 개선하고자 창출된 것으로서, 본 발명의 목적은 부품삭감과 원가절감 및 조립생산성을 높일 수 있음과 동시에 전자파 차폐 효과를 보다 높일 수 있도록 개선한 액정 모니터의 전자파 차폐 구조를 제공하기 위한 것이다.Accordingly, the present invention was created in view of the problems with the electromagnetic wave shielding structure of the conventional liquid crystal monitor as described above, and an object of the present invention is to reduce the parts, reduce the cost, and increase assembly productivity, and at the same time, shield the electromagnetic wave. It is an object of the present invention to provide an electromagnetic wave shielding structure of a liquid crystal monitor improved to further enhance the effect.
도 1은 종래의 통상적인 액정 모니터의 요부를 분리하여 개략적으로 도시해 보인 분리사시도,1 is an exploded perspective view schematically showing a main portion of a conventional liquid crystal monitor according to the present invention;
도 2는 본 발명에 의해 전자파 차폐구조가 개선된 액정 모니터의 요부를 분리하여 개략적으로 도시해 보인 분리사시도,FIG. 2 is an exploded perspective view schematically illustrating a main portion of an LCD monitor having an improved electromagnetic shielding structure according to the present invention;
도 3은 도 2의 프런트 케이스의 일부를 발췌하여 도시해 보인 개략도,3 is a schematic view showing an extract of a part of the front case of FIG.
도 4는 본 발명에 의한 액정 모니터의 요부 결합 단면도.4 is a sectional view of the main parts of the liquid crystal monitor according to the present invention;
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
210...액정 패널 220...프런트 케이스210 ... LCD panel 220 ... front case
221...절연층 230...후방 커버221 Insulation layer 230 Rear cover
240...메인 회로기판(PCB) 250...도전층(Shield)240 ... Main circuit board (PCB) 250 ... Conductive layer (Shield)
상기한 목적 달성을 위하여 본 발명에 의한 액정 모니터의 전자파 차폐구조는, 액정 패널을 전면과 후면에서 각각 지지해 주기 위한 프런트 케이스 및 후방 커버와, 상기 프런트 케이스와 상기 액정 패널의 사이에 개재되도록 설치되는 전자파 차폐수단을 포함하는 액정 모니터에 있어서, 상기 전자파 차폐수단은, 상기 프런트 케이스의 내측 테두리와 상기 액정 패널의 외측 테두리를 도전적으로 접촉시켜 그라운딩된 상태로 결합시킨 것을 특징으로 한다.In order to achieve the above object, the electromagnetic shielding structure of the liquid crystal monitor according to the present invention is provided so as to be interposed between the front case and the rear cover for supporting the liquid crystal panel from the front and rear, respectively, between the front case and the liquid crystal panel. In the liquid crystal monitor comprising an electromagnetic shielding means, wherein the electromagnetic shielding means, the inner edge of the front case and the outer edge of the liquid crystal panel conductively contacted and grounded.
본 발명의 일측면에 따르면, 상기 전자파 차폐수단은, 상기 프런트 케이스의 내측 테두리와 상기 액정 패널의 외측 테두리 사이에 양자의 도전적인 접촉에 의해 그라운딩되도록 도전재를 코팅하여 도전층을 형성한 것이 바람직하다.According to one aspect of the invention, the electromagnetic shielding means, it is preferable to form a conductive layer by coating a conductive material to be grounded by the conductive contact between both the inner edge of the front case and the outer edge of the liquid crystal panel. Do.
그리고, 상기 도전층은 동박 테이프와 은(Ag) 코팅막 중에서 선택된 어느 하나로 형성된 것이 바람직하다.And, the conductive layer is preferably formed of any one selected from copper foil tape and silver (Ag) coating film.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 의한 액정 모니터를 상세하게 설명한다.Hereinafter, a liquid crystal monitor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 2를 참조하면 본 발명에 의한 액정 모니터(200)는, 영상을 표시하도록 모듈화되어 있는 액정 패널(210)과, 그 액정 패널(210)을 전면과 후면에서 각각 지지해 주기 위한 프런트 케이스(220) 및 후방 커버(230)와, 상기 액정 패널(210)을 구동하기 위한 콘트롤러로서 상기 액정 패널(210)과 후방 커버(230)의 사이에 개재되도록 설치되는 메인 회로기판(PCB; 240)을 포함한다.Referring to FIG. 2, the liquid crystal monitor 200 according to the present invention includes a liquid crystal panel 210 that is modularized to display an image, and a front case 220 for supporting the liquid crystal panel 210 from the front and the rear, respectively. ) And a rear cover 230 and a main circuit board 240 installed to be interposed between the liquid crystal panel 210 and the rear cover 230 as a controller for driving the liquid crystal panel 210. do.
상술한 바와 같은 구성에 있어서, 상기 프런트 케이스(220)와 상기 액정 패널(210)의 사이에는 양자 사이에 기구적인 갭이 발생하게 되므로, 이러한 기구적 갭을 메워주면서 전자파를 차폐하기 위한 전자파 차폐수단으로서, 상기 프런트 케이스(220)의 내측 테두리와 상기 액정 패널(210)의 외측 테두리 사이에 양자의 도전적인 접촉에 의해 그라운딩되도록 도전재를 코팅하여 도전층(250)을 형성한 것이 바람직하다.In the above-described configuration, since a mechanical gap is generated between the front case 220 and the liquid crystal panel 210, electromagnetic shielding means for shielding electromagnetic waves while filling the mechanical gap. As an example, it is preferable that the conductive layer 250 is formed by coating a conductive material so as to ground the conductive edge between the inner edge of the front case 220 and the outer edge of the liquid crystal panel 210.
본 발명에 바람직한 실시예에 따르면, 상기 도전층(250)은 동박 테이프를 개재되도록 설치할 수도 있으며, 은(Ag)을 코팅한 코팅층을 형성할 수도 있다.According to a preferred embodiment of the present invention, the conductive layer 250 may be provided so as to interpose a copper foil tape, or may form a coating layer coated with silver (Ag).
한편, 상기 프런트 케이스(220)는 통상 전도성이 높은 알루미늄 샤시를 사용하는데, 예컨대 애노다이징(anodizing)과 같은 화학적 코팅처리를 하여 절연층을 형성함에 따라 절연된 상태로 사용하게 된다.Meanwhile, the front case 220 generally uses an aluminum chassis having high conductivity. For example, the front case 220 may be used in an insulated state by forming an insulating layer by chemical coating such as anodizing.
따라서, 본 발명에 있어서는 도 3의 요부 결합 단면도에 도시된 바와 같이, 상기 프런트 케이스(220)의 내측 테두리면의 절연층(221)을 제거해 내고, 그 절연층(221)이 제거된 부위에 동박 테이프나 은(Ag) 코팅막과 같은 도전층(250)을 형성하며, 그 도전층(250)이 상기 액정 패널(210)의 외측 테두리면에 도전 가능한 상태로 접촉하도록 상기 프런트 케이스(220)와 상기 액정 패널(210)을 결합하여 그라운딩 처리함으로써, EMI 차폐 효과를 높일 수 있다.Therefore, in the present invention, as shown in the main portion sectional view of FIG. 3, the insulating layer 221 of the inner edge surface of the front case 220 is removed, and the copper foil is removed from the portion where the insulating layer 221 is removed. A conductive layer 250, such as a tape or silver (Ag) coating layer, is formed, and the front case 220 and the front layer 220 are in contact with the outer edge of the liquid crystal panel 210 in a state capable of being electrically conductive. By combining the liquid crystal panel 210 and grounding, it is possible to increase the EMI shielding effect.
상술한 바와 같은 구성의 전자파 차폐구조를 가지는 본 발명에 의한 액정 모니터(200)에 따르면, 상기 도전층(250)에 의해 상기 프런트 케이스(220)와 상기 액정 패널(210)을 도전 가능한 상태로 접촉시켜 그라운딩 처리함으로써, 그라운딩 면적 확대에 따른 EMI 차폐 영역이 확대되어 전자파 차폐 효과를 보다 높일 수 있는 동시에, 기존의 몰드 프레임(도 1의 150)을 배제시킬 수 있으므로, 부품삭감에 의한 원가절감과 조립생산성을 향상시킬 수 있는 추가적인 효과도 얻을 수가 있게 된다.According to the liquid crystal monitor 200 according to the present invention having the electromagnetic shielding structure configured as described above, the front case 220 and the liquid crystal panel 210 are in contact with the conductive layer 250 in a state capable of being electrically conductive. In addition, the EMI shielding area due to the increase of the grounding area can be expanded to enhance the electromagnetic shielding effect, and the existing mold frame (150 of FIG. 1) can be eliminated, thereby reducing the cost and assembly due to component reduction. Additional effects can be obtained to improve productivity.
이상에서 설명된 바와 같이 본 발명에 의한 액정 모니터에 따르면, 부품삭감과 원가절감 및 조립생산성을 높일 수 있음과 동시에 전자파 차폐 효과를 보다 높일 수 있는 다중적인 효과를 얻을 수가 있다.As described above, according to the liquid crystal monitor according to the present invention, it is possible to obtain a multiple effect that can increase component reduction, cost reduction, and assembly productivity, and at the same time increase the electromagnetic shielding effect.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능하다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the invention as claimed in the claims. .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR10-2002-0054538A KR100462739B1 (en) | 2002-09-10 | 2002-09-10 | A LCD monitor |
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| KR10-2002-0054538A KR100462739B1 (en) | 2002-09-10 | 2002-09-10 | A LCD monitor |
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| KR101044327B1 (en) * | 2011-01-31 | 2011-06-27 | 주식회사 애니홈스 | Multi ion generator |
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