KR100513651B1 - Liquid crystal diplay - Google Patents
Liquid crystal diplay Download PDFInfo
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- KR100513651B1 KR100513651B1 KR10-1998-0024348A KR19980024348A KR100513651B1 KR 100513651 B1 KR100513651 B1 KR 100513651B1 KR 19980024348 A KR19980024348 A KR 19980024348A KR 100513651 B1 KR100513651 B1 KR 100513651B1
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- pcb
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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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/133334—Electromagnetic shields
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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)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
본 발명은 액정패널의 후면은 물론 전면에서 발생되는 이엠아이(EMI)를 차단할 수 있는 액정표시장치를 개시한다. 개시된 본 발명의 액정표시장치는, 일측면에 박막트랜지스터 및 화소전극이 형성된 하부기판과, 상기 하부기판과 연결되어 소정의 전기적 신호를 인가하는 게이트 PCB 및 데이터 PCB와, 상기 하부기판과 합착되며 일측면에 블랙매트릭스 및 컬러필터가 형성되고 상기 블랙매트릭스 및 컬러필터 상에 상대전극이 형성된 상부기판과, 상기 하부기판과 상부기판을 전기적으로 도통시키도록 상기 하부기판의 가장자리 부분에 도토 형태로 형성되는 트랜스퍼들을 포함하는 액정표시장치로서, 상기 블랙매트릭스는 그의 가장자리 부분이 사진틀 형태의 제1패턴에 의해 연결되고, 상기 제1패턴은 상기 트랜스퍼와 콘택되는 전도성 패턴과 연결되며, 상기 트랜스퍼들은 사진틀 현상의 제2패턴에 의해 서로 연결됨과 아울러 이웃하는 게이트 PCB 및 데이터 PCB의 접지단자들과 각각 연결되어 있는 것을 특징으로 한다. The present invention discloses a liquid crystal display device which can block an EMI generated from a front surface as well as a front surface of a liquid crystal panel. The disclosed liquid crystal display device includes a lower substrate having a thin film transistor and a pixel electrode formed on one side thereof, a gate PCB and a data PCB connected to the lower substrate to apply a predetermined electrical signal, and bonded to the lower substrate. A black matrix and a color filter are formed on the side, and an upper substrate having a counter electrode formed on the black matrix and the color filter, and formed in a clay shape on the edge portion of the lower substrate so as to electrically conduct the lower substrate and the upper substrate. A liquid crystal display device comprising transfers, wherein the black matrix is connected to an edge portion thereof by a first pattern in the form of a picture frame, the first pattern is connected to a conductive pattern in contact with the transfer, and the transfers are performed by the photo frame phenomenon. Connected to each other by the second pattern and adjacent to the PCB and data PCB Characterized in that the respective connection with the terminals.
Description
본 발명은 액정표시장치에 관한 것으로, 보다 상세하게는, 액정패널의 후면 및 전면 모두에서 발생되는 이엠아이(EMI)를 차단할 수 있도록 한 액정표시장치에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device capable of blocking an EMI generated from both a rear surface and a front surface of a liquid crystal panel.
액정표시장치(Liquid Crystal Display Module)는 CRT(Cathode-ray tube)를 대신하여 개발되어져 왔으며, 최근, 노트북 PC 및 모니터 시장에서 크게 각광 받고 있다. 이러한 액정표시장치는 액정분자들의 배열 방향을 변경시켜 소정의 화상을 표시하는 표시장치로서, 액정의 개재하에 상·하부기판이 합착된 액정패널과, 구동 드라이브 IC가 탑재된 TCP(Tape Carrier Package) 및 상기 액정패널에 전기적 신호를 인가하는 인쇄회로기판(Printed Circuit Board : 이하, PCB) 등을 포함한다.Liquid crystal display modules (Liquid Crystal Display Module) has been developed in place of the CRT (Cathode-ray tube), and recently, has attracted much attention in the notebook PC and monitor market. The liquid crystal display device is a display device that displays a predetermined image by changing an arrangement direction of liquid crystal molecules. A liquid crystal panel in which upper and lower substrates are bonded under a liquid crystal, and a TCP (Tape Carrier Package) equipped with a drive driver IC And a printed circuit board (PCB) for applying an electrical signal to the liquid crystal panel.
한편, 모든 표시장치에서는 전기/전자 부품들의 사용에 기인하여 전자기 간섭(Electromagnetic Interference : 이하, EMI) 현상이 발생하게 되며, 이러한 EMI는 표시장치의 화면품위를 저하시키는 요인으로 작용하게 된다. 특히, 액정표시장치에서는 EMI에 의해 화면품위가 급격하게 저하되기 때문에 근래에는 EMI에 의한 결함을 감소시키기 위한 다양한 연구들이 전개되고 있는 실정이다.On the other hand, in all display devices, electromagnetic interference (EMI) occurs due to the use of electrical / electronic components, and such EMI acts as a factor of degrading the screen quality of the display device. In particular, since liquid crystal display devices are rapidly deteriorated due to EMI, various studies have recently been conducted to reduce defects caused by EMI.
액정표시장치에서 발생되는 EMI는 소오스 PCB와 게이트 PCB간의 연결 부위에서 주로 발생되는 것이며, 이러한 EMI는 액정패널에 인가되는 영상신호에 대하여 잡음 역할을 하여 액정표시장치의 화면품위를 저하시키는 요인으로 작용한다.EMI generated in the liquid crystal display is mainly generated at the connection area between the source PCB and the gate PCB, and such EMI acts as a noise to the image signal applied to the liquid crystal panel, thereby degrading the screen quality of the liquid crystal display. do.
따라서, 상기 EMI를 차단시키기 위해 통상 PCB의 후면에 EMI 차단막을 부착시키고 있으며, 다른 방법으로서 액정패널의 후면 전체에 EMI 차단막을 부착시키는 방법도 실시되고 있다.Therefore, in order to block the EMI, an EMI shielding film is usually attached to the rear surface of the PCB, and as another method, an EMI shielding film is attached to the entire rear surface of the liquid crystal panel.
그러나, 종래 액정표시장치에서의 EMI 차단 방법은 PCB의 후면 또는 액정패널의 후면 전체에 EMI 차단막을 부착시키는 방식이므로 액정패널의 후면에서 발생되는 EMI는 차단시킬 수 있겠지만, 액정패널의 전면으로는 어떠한 EMI 차단 수단도 갖추지 못하였으므로 액정패널의 전면에서 발생되는 EMI는 그 차단이 실질적으로 이루어지지 못하고 있다.However, since the EMI blocking method in the conventional liquid crystal display device is a method of attaching an EMI shielding film to the rear of the PCB or the entire rear surface of the liquid crystal panel, EMI generated from the rear of the liquid crystal panel may be blocked. Since EMI shielding means is not provided, EMI generated from the front surface of the liquid crystal panel is not substantially blocked.
따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로서, 액정패널의 후면 뿐만 아니라 전면에서 발생되는 EMI도 차단시킬 수 있도록 한 액정표시장치를 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a liquid crystal display device capable of blocking EMI generated from the front side as well as the rear side of the liquid crystal panel.
상기와 같은 목적을 달성하기 위한 본 발명의 액정표시장치는, 일측면에 박막트랜지스터 및 화소전극이 형성된 하부기판과, 상기 하부기판과 연결되어 소정의 전기적 신호를 인가하는 게이트 PCB 및 데이터 PCB와, 상기 하부기판과 합착되며 일측면에 블랙매트릭스 및 컬러필터가 형성되고 상기 블랙매트릭스 및 컬러필터 상에 상대전극이 형성된 상부기판과, 상기 하부기판과 상부기판을 전기적으로 도통시키도록 상기 하부기판의 가장자리 부분에 도토 형태로 형성되는 트랜스퍼들을 포함하는 액정표시장치로서, 상기 블랙매트릭스는 그의 가장자리 부분이 사진틀 형태의 제1패턴에 의해 연결되고, 상기 제1패턴은 상기 트랜스퍼와 콘택되는 전도성 패턴과 연결되며, 상기 트랜스퍼들은 사진틀 현상의 제2패턴에 의해 서로 연결됨과 아울러 이웃하는 게이트 PCB 및 데이터 PCB의 접지단자들과 각각 연결되어 있는 것을 특징으로 한다. According to an aspect of the present invention, there is provided a liquid crystal display device comprising: a lower substrate having a thin film transistor and a pixel electrode formed on one side thereof, a gate PCB and a data PCB connected to the lower substrate to apply a predetermined electrical signal; An upper substrate bonded to the lower substrate and having a black matrix and a color filter formed on one side thereof, and a counter electrode formed on the black matrix and the color filter; and an edge of the lower substrate to electrically connect the lower substrate and the upper substrate. A liquid crystal display device including transfers formed in a clay shape in a portion, wherein the black matrix is connected to a conductive pattern contacting the transfer with an edge portion of which is connected by a first pattern in the form of a picture frame. The transfers are connected to each other by the second pattern of the picture frame phenomenon and adjacent to each other. Sites PCB and is characterized in that each is connected with a ground terminal of the data PCB.
본 발명에 따르면, 블랙매트릭스를 이용하여 액정패널의 전면에서 발생되는 EMI를 차단시키기 때문에 액정표시장치의 화면품위를 더욱 향상시킬 수 있다.According to the present invention, since the EMI generated from the front surface of the liquid crystal panel is blocked by using the black matrix, the screen quality of the liquid crystal display device can be further improved.
(실시예)(Example)
이하, 첨부된 도면에 의거하여 본 발명의 바람직한 실시예를 상세하게 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1 및 도 2는 본 발명의 실시예에 따른 액정표시장치를 설명하기 위한 도면들로서, 여기서, 도 1은 액정패널의 상부기판을 도시한 평면도이고, 도 2는 액정패널의 하부기판을 도시한 평면도이다.1 and 2 are views for explaining a liquid crystal display device according to an embodiment of the present invention, where FIG. 1 is a plan view showing an upper substrate of a liquid crystal panel, and FIG. 2 shows a lower substrate of a liquid crystal panel. Top view.
우선, 도 1에 도시된 바와 같이, 상부기판의 경우에는 광누설을 차단함과 동시에 서로 다른 색을 띠는 컬러필터들간의 혼색을 방지하기 위해 형성하는 블랙매트릭스(20)를 종래와 동일한 패턴으로 형성함과 아울러 가장자리 부분에 하나의 라인으로 구성된 사진틀 형상의 제1패턴(11)을 추가로 형성한다. 이때, 상기 제1패턴(11)은 그의 모서리 부분이 하부기판에 형성되는 트랜스퍼와 콘택될 수 있도록 소정 길이만큼이 외측으로 연장 배치되도록 하며, 또한, 연장 배치된 단부에는 트랜스퍼와 콘택될 전도성 패턴(12)을 형성한다.First, as shown in FIG. 1, in the case of the upper substrate, the black matrix 20 formed in order to block light leakage and to prevent color mixing between color filters having different colors is formed in the same pattern as in the prior art. In addition, a first pattern 11 having a photo frame having one line is formed at the edge portion. In this case, the first pattern 11 is disposed so that its edge portion is extended outward by a predetermined length so that the corner portion thereof may be in contact with the transfer formed on the lower substrate, and at the end of the extended portion, the conductive pattern to be contacted with the transfer ( 12) form.
여기서, 도시하지는 않았지만, 상기 전도성 패턴(12)은 ITO로된 상대전극과 쇼트되지 않도록 형성한다.Although not shown, the conductive pattern 12 is formed so as not to short with a counter electrode made of ITO.
그 다음, 도 2에 도시된 바와 같이, 하부기판의 경우에는 상부기판과의 전기적 도통을 위해 형성하는 도트 형태의 트랜스퍼들(21)을 사진틀 형상의 제2패턴(22)을 형성하여 서로 연결시키며, 아울러, 상기 트랜스퍼들(21)은 이웃하는 게이트 PCB 및 데이터 PCB의 접지단자(30)와 각각 연결시킨다.Next, as shown in FIG. 2, in the case of the lower substrate, the second pattern 22 having a photo frame shape is connected to each other by forming transfer patterns 21 having a dot shape for electrical conduction with the upper substrate. In addition, the transfers 21 are connected to the ground terminal 30 of the neighboring gate PCB and the data PCB, respectively.
이때, 상기 트랜스퍼(21)와 PCB의 접지단자(30)를 연결시킴에 있어서, 그들 사이에 저항(23)을 개재시킬 수 있으며, 이 경우, 트랜스퍼(21)와 PCB의 접지단자(30)가 커플링되는 것을 방지할 수 있고, 아울러, 공통신호 인가시에 신호지연 현상이 발생되는 것을 방지시킬 수 있다. In this case, in connecting the transfer 21 and the ground terminal 30 of the PCB, a resistor 23 may be interposed therebetween. In this case, the transfer 21 and the ground terminal 30 of the PCB Coupling can be prevented, and a signal delay phenomenon can be prevented from occurring when a common signal is applied.
상기와 같은 구조를 갖는 상부기판과 하부기판을 합착시킬 경우에는 상부기판에 구비된 전도성 패턴(12)과 하부기판 상에 형성된 트랜스퍼(21)가 콘택되도록 한다. 이에 따라, 액정패널의 전면에서 발생되는 EMI는 블랙매트릭스(20)에 흡수되고, 상기 블랙매트릭스(20)에 흡수된 EMI는 전도성 패턴(12)과 콘택된 트랜스퍼(21)를 통해 PCB의 접지단자(30)로 빠져나가기 때문에 액정패널의 전면에서 발생되는 EMI를 차단시킬 수 있게 된다.When the upper substrate and the lower substrate having the above structure are bonded together, the conductive pattern 12 provided on the upper substrate and the transfer 21 formed on the lower substrate are contacted. Accordingly, the EMI generated from the front surface of the liquid crystal panel is absorbed by the black matrix 20, and the EMI absorbed by the black matrix 20 is the ground terminal of the PCB through the transfer 21 contacted with the conductive pattern 12. Since it exits to 30 it is possible to block the EMI generated from the front of the liquid crystal panel.
한편, 도시하고 설명하지는 않았지만, 본 발명에 따른 액정표시장치는 종래와 마찬가지로 PCB의 후면에 EMI 차단막을 부착시키며, 이를 통해, 액정패널의 후면에서 발생되는 EMI를 차단시킨다.On the other hand, although not shown and described, the liquid crystal display according to the present invention attaches an EMI blocking film to the back of the PCB as in the prior art, thereby blocking the EMI generated from the back of the liquid crystal panel.
이상에서와 같이, 본 발명은 액정패널의 후면에서 발생되는 EMI는 PCB의 후면에 부착시킨 EMI 차단막으로 차단시키고, 액정패널의 전면에서 발생되는 EMI는 상부기판 상에 형성하는 블랙매트릭스를 이용하여 차단시키기 때문에, EMI에 의한 결함을 방지할 수 있으며, 이에 따라, 액정표시장치의 화면품위를 향상시킬 수 있다.As described above, the present invention blocks the EMI generated from the rear surface of the liquid crystal panel with an EMI shielding film attached to the rear surface of the PCB, and the EMI generated from the front surface of the liquid crystal panel is blocked using a black matrix formed on the upper substrate. As a result, defects caused by EMI can be prevented, whereby the screen quality of the liquid crystal display device can be improved.
한편, 여기에서는 본 발명의 특정 실시예에 대하여 설명하고 도시하였지만, 당업자에 의하여 이에 대한 수정과 변형을 할 수 있다. 따라서, 이하, 특허청구의 범위는 본 발명의 진정한 사상과 범위에 속하는 한 모든 수정과 변형을 포함하는 것으로 이해할 수 있다.Meanwhile, although specific embodiments of the present invention have been described and illustrated, modifications and variations can be made by those skilled in the art. Accordingly, the following claims are to be understood as including all modifications and variations as long as they fall within the true spirit and scope of the present invention.
도 1은 본 발명의 실시예에 따른 액정표시장치의 블랙매트릭스를 도시한 평면도. 1 is a plan view illustrating a black matrix of a liquid crystal display according to an exemplary embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 액정표시장치의 트랜스퍼를 도시한 평면도. 2 is a plan view illustrating a transfer of a liquid crystal display according to an exemplary embodiment of the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
11 : 제1패턴 12 : 전도성 패턴11: first pattern 12: conductive pattern
20 : 블랙매트릭스 21 : 트랜스퍼20: Black Matrix 21: Transfer
22 : 제2패턴 30 : 접지 단자22: second pattern 30: ground terminal
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0024348A KR100513651B1 (en) | 1998-06-26 | 1998-06-26 | Liquid crystal diplay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0024348A KR100513651B1 (en) | 1998-06-26 | 1998-06-26 | Liquid crystal diplay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000003182A KR20000003182A (en) | 2000-01-15 |
| KR100513651B1 true KR100513651B1 (en) | 2005-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-1998-0024348A KR100513651B1 (en) | 1998-06-26 | 1998-06-26 | Liquid crystal diplay |
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| Country | Link |
|---|---|
| KR (1) | KR100513651B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06208123A (en) * | 1993-01-13 | 1994-07-26 | Seiko Instr Inc | Polychromatic liquid crystal display device |
| JPH08179306A (en) * | 1994-12-22 | 1996-07-12 | Sharp Corp | Display device |
| JPH0980480A (en) * | 1995-09-13 | 1997-03-28 | Sony Corp | Liquid crystal display device |
| KR19990010132A (en) * | 1997-07-15 | 1999-02-05 | 윤종용 | Liquid Crystal Display with Minimal Electromagnetic Interference |
-
1998
- 1998-06-26 KR KR10-1998-0024348A patent/KR100513651B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06208123A (en) * | 1993-01-13 | 1994-07-26 | Seiko Instr Inc | Polychromatic liquid crystal display device |
| JPH08179306A (en) * | 1994-12-22 | 1996-07-12 | Sharp Corp | Display device |
| JPH0980480A (en) * | 1995-09-13 | 1997-03-28 | Sony Corp | Liquid crystal display device |
| KR19990010132A (en) * | 1997-07-15 | 1999-02-05 | 윤종용 | Liquid Crystal Display with Minimal Electromagnetic Interference |
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| Publication number | Publication date |
|---|---|
| KR20000003182A (en) | 2000-01-15 |
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