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KR100816066B1 - LCD Display Module - Google Patents

LCD Display Module Download PDF

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Publication number
KR100816066B1
KR100816066B1 KR1020010084076A KR20010084076A KR100816066B1 KR 100816066 B1 KR100816066 B1 KR 100816066B1 KR 1020010084076 A KR1020010084076 A KR 1020010084076A KR 20010084076 A KR20010084076 A KR 20010084076A KR 100816066 B1 KR100816066 B1 KR 100816066B1
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South Korea
Prior art keywords
liquid crystal
circuit board
printed circuit
cover bottom
crystal panel
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Expired - Fee Related
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KR1020010084076A
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Korean (ko)
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KR20030055369A (en
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안수영
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엘지.필립스 엘시디 주식회사
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Priority to KR1020010084076A priority Critical patent/KR100816066B1/en
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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
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0215—Grounding of printed circuits by connection to external grounding means
    • 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
    • G02F2201/54—Arrangements for reducing warping-twist

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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)
  • Liquid Crystal (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

본 발명은 액정모듈의 인쇄회로기판 보호용 커버보텀을 이용하여 접지처리시 부품수를 감소시키도록 한 액정표시모듈에 관한 것이다.The present invention relates to a liquid crystal display module to reduce the number of parts during the grounding process by using a cover bottom for protecting the printed circuit board of the liquid crystal module.

본 발명에 따른 액정표시모듈은 액정패널부와; 액정패널부의 배면에 위치하여 액정패널을 고정하기 위한 서포트 메인과; 액정패널에 구동신호를 인가하기 위한 구동회로가 인쇄패터닝되어 형성된 인쇄회로기판과; 액정표시모듈의 배면에 형성된 시스템 샤시와; 인쇄회로기판으로부터 상기 서포트 메인과 시스템 샤시가 체결되는 상기 서포트 메인의 돌출부 영역까지 신장되는 커버보텀를 구비하는 것을 특징으로 한다.
Liquid crystal display module according to the present invention and the liquid crystal panel; A support main positioned at a rear surface of the liquid crystal panel to fix the liquid crystal panel; A printed circuit board formed by printing patterning a driving circuit for applying a driving signal to the liquid crystal panel; A system chassis formed on the rear surface of the liquid crystal display module; And a cover bottom extending from the printed circuit board to the protrusion area of the support main to which the support main and the system chassis are fastened.

Description

액정표시모듈{Liquid Crystal Display Module} Liquid Crystal Display Module             

도 1은 종래기술에 따른 액정표시모듈의 후면을 개략적으로 나타내는 도면.1 is a view schematically showing a rear surface of a liquid crystal display module according to the prior art.

도 2는 도 1에서 A-A′선을 따라 절단한 액정표시모듈의 접지부의 단면도.FIG. 2 is a cross-sectional view of the ground part of the liquid crystal display module cut along the line AA ′ in FIG. 1. FIG.

도 3은 본 발명의 실시예에 따른 표시장치의 단면을 나타내는 도면.
3 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.

〈 도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for the main parts of the drawings>

10,32 : 커버보텀 12 : 그라운드 브라켓10,32: Cover bottom 12: Ground bracket

14,34 : 인쇄회로기판 16,36 : 시스템 샤시14,34 printed circuit board 16,36 system chassis

18,40 : 서포트 메인 20,38 : 커넥터18,40: Support main 20,38: Connector

22,46 : 액정패널부 24,42 : 스크류22,46: liquid crystal panel portion 24,42: screw

26,44 : 스크류홀 48 : 홀
26,44: screw hole 48: hole

본 발명은 액정표시모듈에 관한 것으로, 특히 액정모듈의 인쇄회로기판 보호 용 커버보텀을 이용하여 접지처리시 부품수를 감소시키도록 한 액정표시모듈에 관한 것이다. The present invention relates to a liquid crystal display module, and more particularly to a liquid crystal display module to reduce the number of components during the grounding process by using a cover bottom for protecting the printed circuit board of the liquid crystal module.

통상적으로, 액정표시장치(Liquid Crystal Display : 이하 "LCD"라 함)는 매트릭스 형태로 배열되어진 다수의 액정셀들과 이들 액정셀들 각각에 공급될 비디오 신호를 절환하기 위한 다수의 제어용 스위치들로 구성된 액정패널에 의해 백라이트 유닛에서 공급되는 광빔의 투과량이 조절되어 화면에 원하는 화상을 표시하게 된다.Typically, a liquid crystal display (hereinafter referred to as "LCD") is a plurality of liquid crystal cells arranged in a matrix form and a plurality of control switches for switching the video signal to be supplied to each of these liquid crystal cells The transmission amount of the light beam supplied from the backlight unit is adjusted by the configured liquid crystal panel to display a desired image on the screen.

이러한 액정표시장치는 브라운관에 비하여 소형화가 가능하여 퍼스널 컴퓨터(Personal Computer)와 노트북 컴퓨터(Note Book Computer)는 물론, 복사기 등의 사무자동화기기, 휴대전화기나 호출기 등의 휴대기까지 광범위하게 이용되고 있다. 이러한 액정표시장치의 평면적인 유효 표시면적을 가능한 한 확대하거나 박형의 모듈을 형성하기 위해 액정표시패널의 구동 집적회로(Integrated Circuit)의 실장에 새로운 기술이 적극적으로 도입되어 왔다.Such liquid crystal display devices can be miniaturized compared to CRTs, and are widely used in personal computers and notebook computers, as well as office automation devices such as photocopiers, mobile phones and pagers. . In order to expand the planar effective display area of such a liquid crystal display device as much as possible or to form a thin module, a new technology has been actively introduced in the mounting of the integrated circuit of the liquid crystal display panel.

이러한 구동 집적회로를 실장하는 인쇄회로기판에는 고주파의 사용으로 인해 발생되는 전자파(EMI)를 접지시키기 위한 접지단자가 설치되어 있다. 이와 같은 접지단자는 시스템 샤시(Chassis)와 연결되어 있고 샤시는 다시 커버보텀과 연결되어 접지됨으로써 인쇄회로기판에 형성된 회로의 안정을 도모하고 노이즈의 발생을 방지한다.The printed circuit board mounting such a driving integrated circuit is provided with a ground terminal for grounding an electromagnetic wave (EMI) generated by the use of a high frequency wave. Such a ground terminal is connected to the chassis of the system (chassis), and the chassis is connected to the cover bottom and grounded again to stabilize the circuit formed on the printed circuit board and to prevent the generation of noise.

도 1은 종래기술에 따른 액정표시모듈의 후면을 개략적으로 나타내는 도면이고, 도 2는 도 1에서 A-A′선을 따라 절단한 액정표시모듈의 접지부의 단면도이다. 1 is a view schematically illustrating a rear surface of a liquid crystal display module according to the related art, and FIG. 2 is a cross-sectional view of a ground part of the liquid crystal display module cut along the line A-A 'of FIG. 1.                         

도 1 및 도 2를 참조하면, 액정표시모듈은 액정패널, 광원으로부터 입사된 광을 평면광원으로 변환하여 상기 액정패널 쪽으로 진행하게 하는 도광판 및 확산판, 도광판에서 방출되는 휘선 및 빛샘을 방지하기 위한 리플렉터 등으로 구성된 액정패널부(22)와; 액정패널의 배면에 위치하여 액정패널의 도광판을 고정하기 위한 서포트 메인(18)과; 액정패널에 매트릭스 형태로 배열되어진 다수의 액정셀들을 구동시키기 위한 구동회로가 인쇄패터닝되어 형성된 인쇄회로기판(Printed Circuit Board ; 이하 "PCB"라 함)(14)과; 액정표시모듈의 배면에 형성되어 시스템 보호 및 전기적 절연시키기 위한 시스템 샤시(16)와; PCB(14) 및 서포트 메인(18) 등의 측면과 저면을 감싸는 커버보텀(10)과; 시스템 샤시(16)와 PCB(14) 사이를 연결되게 형성되는 그라운드 브라켓(12)과; 외부 시스템(도시하지 않음)과 PCB(14)를 연결하여 외부 신호가 인가되도록 하는 커넥터(20)를 구비한다. 커버보텀(10)은 PCB(14)와의 전기적 절연을 위하여 배면을 절연 코팅한다.1 and 2, the liquid crystal display module converts light incident from a liquid crystal panel and a light source into a planar light source to prevent the light guide plate and the diffuser plate and the bright lines emitted from the light guide plate. A liquid crystal panel portion 22 composed of a reflector or the like; A support main 18 positioned on the rear surface of the liquid crystal panel to fix the light guide plate of the liquid crystal panel; A printed circuit board (PCB) 14 formed by printing and patterning a driving circuit for driving a plurality of liquid crystal cells arranged in a matrix form on the liquid crystal panel; A system chassis 16 formed on the rear surface of the liquid crystal display module to protect and electrically insulate the system; A cover bottom 10 surrounding side and bottom surfaces of the PCB 14 and the support main 18; A ground bracket 12 formed to be connected between the system chassis 16 and the PCB 14; A connector 20 is provided to connect an external system (not shown) and the PCB 14 to allow an external signal to be applied. Cover bottom 10 is an insulating coating on the back for electrical insulation with the PCB (14).

또한 액정표시모듈은 커버보텀(10), 그라운드 브라켓(12) 및 PCB(14)를 고정하기 위한 제1 스크류홀(26a) 및 제1 스크류(24a)와; 시스템 샤시(16)와 그라운드 브라켓(12)을 고정하기 위한 제2 스크류홀(26b) 및 제2 스크류(24b)를 구비한다.In addition, the liquid crystal display module may include a first screw hole 26a and a first screw 24a for fixing the cover bottom 10, the ground bracket 12, and the PCB 14; A second screw hole 26b and a second screw 24b for fixing the system chassis 16 and the ground bracket 12 are provided.

상기와 같이 구성된 액정표시모듈은 도 2에 표시된 바와 같이 그라운드 브라켓(12)이 PCB(14)와 시스템 샤시(16)의 제1 및 제2 스크류(24a,24b)에 의해 접촉되어 PCB(14)에 형성된 전자파(EMI)를 제거시킴으로서 PCB(14)에 형성된 회로의 안정을 도모함과 아울러 노이즈의 발생을 방지한다. 이 때 전자파(EMI)를 제거시키기 위한 접지영역은 그라운드 브라켓(12)과 PCB(14)의 제1 스크류(24a)에 의한 접촉영 역(A,B)과, 시스템 샤시(16) 배면과 그라운드 브라켓(12)을 고정하기 위한 제2 스크류(24b)에 의한 접촉영역(C,D)으로 구성된다.In the liquid crystal display module configured as described above, the ground bracket 12 contacts the PCB 14 and the first and second screws 24a and 24b of the system chassis 16 as shown in FIG. By eliminating the electromagnetic waves (EMI) formed in the circuit, the circuit formed on the PCB 14 can be stabilized and noise can be prevented. At this time, the ground area for removing the electromagnetic wave (EMI) is the contact area (A, B) by the ground bracket 12 and the first screw (24a) of the PCB 14, the back and ground of the system chassis 16 It consists of the contact areas C and D by the second screw 24b for fixing the bracket 12.

그러나, 종래기술에 따른 액정표시모듈은 커버보텀(10)과 시스템 샤시(16)가 분리되어 있음으로 인하여 접지통로를 제공하기 위한 그라운드 브라켓 등의 부품 등이 더 사용되어야 하는 문제점이 있게 된다.
However, the liquid crystal display module according to the related art has a problem in that parts such as a ground bracket for providing a ground passage are further used because the cover bottom 10 and the system chassis 16 are separated.

따라서, 본 발명의 목적은 서포트 메인의 측면 및 저면을 감싸는 커버보텀을 연장하여 시스템 샤시와 연결되도록 함으로써 접지처리시 부품수를 감소할 수 있도록 한 액정표시모듈을 제공하는 데 있다.Accordingly, an object of the present invention is to provide a liquid crystal display module which can reduce the number of components during grounding process by extending the cover bottom surrounding the side and bottom of the support main to be connected to the system chassis.

상기 목적을 달성하기 위하여 본 발명에 따른 액정표시모듈은 액정패널부와; 상기 액정패널부의 배면에 위치하여 액정패널을 고정하기 위한 서포트 메인과; 상기 액정패널에 구동신호를 인가하기 위한 구동회로가 인쇄패터닝되어 형성된 인쇄회로기판과; 상기 액정표시모듈의 배면에 형성된 시스템 샤시와; 상기 인쇄회로기판으로부터 상기 서포트 메인과 시스템 샤시가 체결되는 상기 서포트 메인의 돌출부 영역까지 신장되는 커버보텀를 구비하는 것을 특징으로 한다.In order to achieve the above object, a liquid crystal display module includes a liquid crystal panel unit; A support main positioned at a rear surface of the liquid crystal panel to fix the liquid crystal panel; A printed circuit board formed by printing patterning a driving circuit for applying a driving signal to the liquid crystal panel; A system chassis formed on the rear surface of the liquid crystal display module; And a cover bottom extending from the printed circuit board to a protrusion area of the support main to which the support main and the system chassis are fastened.

본 발명의 경우 커버보텀과 인쇄회로기판을 체결하여 전기적으로 연결하기 위한 제1 스크류홀 및 제1 스크류와; 시스템 샤시, 커버보텀 및 서포트 메인을 체 결하여 상기 제1 스크류에 의해 전기적으로 연결된 인쇄회로기판에 형성된 전자파를 상기 시스템 샤시로 흐르게 하여 접지시키기 위한 제2 스크류홀 및 제2 스크류를 구비하는 것을 특징으로 한다.In the present invention, the first screw hole and the first screw for electrically connecting the cover bottom and the printed circuit board by fastening; And a second screw hole and a second screw for connecting the system chassis, the cover bottom, and the support main to ground the electromagnetic waves formed on the printed circuit board electrically connected by the first screw to the system chassis. It is done.

본 발명의 경우 외부 시스템과 상기 인쇄회로기판을 연결하여 외부 신호가 인가되도록 하는 커넥터를 추가로 구비하는 것을 특징으로 한다.In the present invention, it is characterized in that it further comprises a connector for connecting an external system and the printed circuit board so that an external signal is applied.

본 발명에서의 커버보텀은 상기 커넥터가 통과되도록 상기 커넥터의 표면 영역만큼의 홀을 추가로 구비하는 것을 특징으로 한다.The cover bottom in the present invention is characterized in that it further comprises a hole as the surface area of the connector to pass through the connector.

본 발명에서의 커버보텀은 상기 인쇄회로기판과 전기적 절연을 위하여 절연 코팅된 제 1 영역과, 상기 제1 및 제2 스크류에 의해 상기 시스템 샤시 및 인쇄회로기판과 체결시 전기적 접지를 위해 절연 코팅이 제거된 제2 영역을 구비하는 것을 특징으로 한다.In the present invention, the cover bottom includes an insulating coating for electrical grounding when the first area and the first chassis are electrically coated with the system chassis and the printed circuit board by the first and second screws. And a second region removed.

상기 목적 외에 본 발명의 다른 목적 및 특징은 첨부도면을 참조한 실시 예에 대한 설명으로 나타나게 될 것이다.Other objects and features of the present invention in addition to the above object will appear in the description of the embodiments with reference to the accompanying drawings.

이하 도 3을 참조하여 본 발명의 실시 예에 대하여 설명하기로 한다. Hereinafter, an embodiment of the present invention will be described with reference to FIG. 3.

도 3은 본 발명의 실시예에 따른 액정표시장치의 단면을 나타내는 도면이다.3 is a cross-sectional view of a liquid crystal display device according to an exemplary embodiment of the present invention.

도 3을 참조하면, 액정표시모듈은 액정패널, 광원으로부터 입사된 광을 평면광원으로 변환하여 상기 액정패널 쪽으로 진행하게 하는 도광판 및 확산판, 도광판에서 방출되는 휘선 및 빛샘을 방지하기 위한 리플렉터 등으로 구성된 액정패널부(46)와; 액정패널의 배면에 위치하여 액정패널의 도광판을 고정하기 위한 서포트 메인(40)과; 액정패널에 매트릭스 형태로 배열되어진 다수의 액정셀들을 구동시키기 위하여 구동회로가 인쇄패터닝되어 형성된 인쇄회로기판(이하, "PCB"라 함)(34)과; 액정표시모듈의 배면에 형성되어 시스템 보호 및 전기적 절연시키기 위한 시스템 샤시(36)와; PCB(34) 및 서포트 메인(40) 등의 측면과 저면을 감싸는 커버보텀(32a,32b)과; 외부 시스템(도시하지 않음)과 PCB(34)를 연결하여 외부 신호가 인가되도록 하는 커넥터(38)를 구비한다. 이때 커버보텀 32a 및 32b는 서로 연결되어 있다.Referring to FIG. 3, the liquid crystal display module is a liquid crystal panel, a light guide plate and a diffuser plate for converting light incident from a light source into a planar light source, and move toward the liquid crystal panel, and a reflector to prevent bright lines and light leakage emitted from the light guide plate. A configured liquid crystal panel unit 46; A support main 40 positioned on the rear surface of the liquid crystal panel to fix the light guide plate of the liquid crystal panel; A printed circuit board 34 (hereinafter referred to as " PCB ") 34 formed by printing and patterning a driving circuit for driving a plurality of liquid crystal cells arranged in a matrix form on the liquid crystal panel; A system chassis 36 formed on the rear surface of the liquid crystal display module to protect and electrically insulate the system; Cover bottoms 32a and 32b surrounding side and bottom surfaces of the PCB 34 and the support main 40; A connector 38 is provided to connect an external system (not shown) and the PCB 34 so that an external signal is applied. At this time, the cover bottoms 32a and 32b are connected to each other.

또한 액정표시모듈은 커버보텀(32a,32b) 및 PCB(34)를 고정하기 위한 제1 스크류홀(44b) 및 제1 스크류(42b)와; 시스템 샤시(36), 커버보텀(32a,32b) 및 서포트 메인(40)을 고정하기 위한 제2 스크류홀(44a) 및 제2 스크류(42a)를 구비한다.In addition, the liquid crystal display module may include a first screw hole 44b and a first screw 42b for fixing the cover bottoms 32a and 32b and the PCB 34; A second screw hole 44a and a second screw 42a for fixing the system chassis 36, the cover bottoms 32a and 32b and the support main 40 are provided.

커버보텀(32a,32b)은 PCB(34)와의 전기적 절연을 위하여 배면을 절연 코팅되게 하고, 제1 스크류(42b)에 의해 PCB(34)와 커버보텀(32b)이 체결되는 제1 스크류 홀(44b)의 주변 영역의 배면에는 절연 코팅을 제거시킨다. 또한 커버보텀(32a,32b)은 시스템 샤시(36)와 PCB(34) 사이에 접속되어 전자파를 제거시키기 위하여 PCB(34)로부터 서포트 메인(40)의 돌출부와 시스템 샤시(36)가 체결되는 영역까지 신장되며, 커넥터(38)가 돌출되어 있음을 나타내기 위하여 커넥터(38)가 형성되는 영역만큼의 홀(48)을 구비한다.The cover bottoms 32a and 32b have an insulating coating on the back surface for electrical insulation with the PCB 34, and the first screw holes (1) through which the PCB 34 and the cover bottom 32b are fastened by the first screw 42b. The insulating coating is removed on the back of the peripheral area of 44b). In addition, the cover bottoms 32a and 32b are connected between the system chassis 36 and the PCB 34 so that the projections of the support main 40 and the system chassis 36 are fastened from the PCB 34 to remove electromagnetic waves. Extends to and has as many holes 48 as the area in which the connector 38 is formed to indicate that the connector 38 is protruding.

상기와 같이 구성된 액정표시모듈은 커버보텀(32a,32b)이 PCB(34)와 시스템 샤시(36)와 제1 및 제2 스크류(42,42a)에 의해 접촉되어 PCB(34)에 형성된 전자파(EMI)를 제거시킴으로서 PCB(34)에 형성된 회로의 안정을 도모함과 아울러 노이즈의 발생을 방지한다.In the liquid crystal display module configured as described above, the cover bottoms 32a and 32b are contacted by the PCB 34, the system chassis 36, and the first and second screws 42 and 42a to form electromagnetic waves formed on the PCB 34. By eliminating EMI, the circuit formed on the PCB 34 can be stabilized and noise can be prevented.

이 때 전자파(EMI)를 접지시키기 위한 접지영역은 커버보텀(32b)과 인쇄회로기판(34)의 제1 스크류(42b)에 의한 접촉영역(A',B')과, 시스템 샤시(36) 배면과 신장된 커버보텀(32a)을 고정하기 위한 제2 스크류(42a)에 의한 접촉영역(C',D')으로 구성된다.
At this time, the ground area for grounding the electromagnetic wave (EMI) is the contact area (A ', B') by the cover bottom 32b and the first screw 42b of the printed circuit board 34, and the system chassis 36 The contact area C ', D' by the 2nd screw 42a for fixing the back surface and the extended cover bottom 32a is comprised.

상술한 바와 같이, 본 발명에 따른 액정표시모듈은 서포트 메인의 측면과 저면을 감싸는 커버보텀을 PCB로부터 서포트 메인과 시스템 샤시가 체결되는 영역까지 신장시킴으로써 인쇄회로기판에서 형성된 전자파를 시스템 샤시로 연결하여 접지시키는 그라운드 브라켓의 사용없이도 인쇄회로기판의 구동회로를 안정하게 구동시킴과 아울러 부품수를 줄일 수 있게 된다.As described above, the liquid crystal display module according to the present invention connects the electromagnetic wave formed in the printed circuit board to the system chassis by extending the cover bottom surrounding the side and the bottom of the support main from the PCB to the area where the support main and the system chassis are coupled. It is possible to stably drive the driving circuit of the printed circuit board and to reduce the number of parts without using the grounding grounding bracket.

이상 설명한 내용을 통해 당업자라면 본 발명의 기술사상을 일탈하지 아니하는 범위에서 다양한 변경 및 수정이 가능함을 알 수 있을 것이다. 따라서, 본 발명의 기술적 범위는 명세서의 상세한 설명에 기재된 내용으로 한정되는 것이 아니라 특허 청구의 범위에 의해 정하여져야만 할 것이다.Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (5)

액정패널부와;A liquid crystal panel unit; 상기 액정패널부의 배면에 위치하여 액정패널을 고정하기 위한 서포트 메인과;A support main positioned at a rear surface of the liquid crystal panel to fix the liquid crystal panel; 상기 액정패널에 구동신호를 인가하기 위한 구동회로가 인쇄패터닝되어 형성된 인쇄회로기판과;A printed circuit board formed by printing patterning a driving circuit for applying a driving signal to the liquid crystal panel; 상기 액정표시모듈의 배면에 형성된 시스템 샤시와;A system chassis formed on the rear surface of the liquid crystal display module; 상기 인쇄회로기판으로부터 상기 서포트 메인과 시스템 샤시가 체결되는 상기 서포트 메인의 돌출부 영역까지 신장되는 커버보텀를 구비하는 것을 특징으로 하는 액정표시모듈.And a cover bottom extending from the printed circuit board to a protrusion area of the support main to which the support main and the system chassis are fastened. 제 1 항에 있어서,The method of claim 1, 상기 커버보텀과 인쇄회로기판을 체결하여 전기적으로 연결하기 위한 제1 스크류홀 및 제1 스크류와;A first screw hole and a first screw for fastening the cover bottom and the printed circuit board to electrically connect the cover bottom; 상기 시스템 샤시, 커버보텀 및 서포트 메인을 체결하여 상기 제1 스크류에 의해 전기적으로 연결된 인쇄회로기판에 형성된 전자파를 상기 시스템 샤시로 흐르게 하여 접지시키기 위한 제2 스크류홀 및 제2 스크류를 구비하는 것을 특징으로 하는 액정표시모듈.And a second screw hole and a second screw for fastening the system chassis, the cover bottom, and the support main to ground the electromagnetic waves formed on the printed circuit board electrically connected by the first screw to the system chassis. LCD display module. 제 1 항에 있어서,The method of claim 1, 외부 시스템과 상기 인쇄회로기판을 연결하여 외부 신호가 인가되도록 하는 커넥터를 추가로 구비하는 것을 특징으로 하는 액정표시모듈.And a connector for connecting an external system and the printed circuit board to apply an external signal. 제 3 항에 있어서,The method of claim 3, wherein 상기 커버보텀은 상기 커넥터가 통과되도록 상기 커넥터의 표면 영역만큼의 홀을 추가로 구비하는 것을 특징으로 하는 액정표시모듈.And the cover bottom further includes as many holes as the surface area of the connector to allow the connector to pass therethrough. 제 2 항에 있어서,The method of claim 2, 상기 커버보텀은 상기 인쇄회로기판과 전기적 절연을 위하여 절연 코팅된 제 1 영역과,The cover bottom may include a first region insulated and coated to electrically insulate the printed circuit board; 상기 제1 및 제2 스크류에 의해 상기 시스템 샤시 및 인쇄회로기판과 체결시 전기적 접지를 위해 절연 코팅이 제거된 제2 영역을 구비하는 것을 특징으로 하는 액정표시모듈.And a second region in which an insulating coating is removed for electrical grounding when the first and second screws are coupled to the system chassis and the printed circuit board.
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KR20000003117A (en) * 1998-06-25 2000-01-15 김영환 Liquid crystal display
KR20000039650A (en) * 1998-12-15 2000-07-05 구본준 Ground plate of liquid crystal display module
KR20010082742A (en) * 2000-02-18 2001-08-30 가나이 쓰토무 Liquid crystal display device
KR20010107435A (en) * 2000-05-29 2001-12-07 송재인 Lcd module

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Publication number Priority date Publication date Assignee Title
KR20000003117A (en) * 1998-06-25 2000-01-15 김영환 Liquid crystal display
KR20000039650A (en) * 1998-12-15 2000-07-05 구본준 Ground plate of liquid crystal display module
KR20010082742A (en) * 2000-02-18 2001-08-30 가나이 쓰토무 Liquid crystal display device
KR20010107435A (en) * 2000-05-29 2001-12-07 송재인 Lcd module

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