KR20020050443A - Thin Film Transistor - Liquid Crystal Display Module - Google Patents

Thin Film Transistor - Liquid Crystal Display Module Download PDF

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Publication number
KR20020050443A
KR20020050443A KR1020000079592A KR20000079592A KR20020050443A KR 20020050443 A KR20020050443 A KR 20020050443A KR 1020000079592 A KR1020000079592 A KR 1020000079592A KR 20000079592 A KR20000079592 A KR 20000079592A KR 20020050443 A KR20020050443 A KR 20020050443A
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South Korea
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tft
link
lcd module
drive
substrate
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KR1020000079592A
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Korean (ko)
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KR100606961B1 (en
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여주천
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구본준, 론 위라하디락사
엘지.필립스 엘시디 주식회사
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Priority to KR1020000079592A priority Critical patent/KR100606961B1/en
Priority to US10/017,426 priority patent/US7088323B2/en
Priority to JP2001389623A priority patent/JP4287609B2/en
Priority to CNB011403950A priority patent/CN1184607C/en
Publication of KR20020050443A publication Critical patent/KR20020050443A/en
Priority to US11/453,083 priority patent/US7548225B2/en
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Publication of KR100606961B1 publication Critical patent/KR100606961B1/en
Priority to JP2008152644A priority patent/JP2008209959A/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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits

Abstract

PURPOSE: A TFT-LCD module is provided to prevent level shift voltage applied to data lines and to minimize the phenomenon that picture quality becomes poor, thereby improving reliability of the TFT-LCD module. CONSTITUTION: A TFT-LCD module includes a multiplexer(43) for switching an electric signal applied from a drive IC(41) to a data line(42) of a TFT-LCD panel. A plurality of link lines(44) arranged at the edge of the panel, which transmit the output signal of the driving IC to the multiplexer, are thicker than link lines placed at the center of the panel. Each of the plurality of link lines is composed of the first straight portion having a uniform width, a bent portion connected with the first straight portion and being wider than the first straight portion, and the second straight portion connected between the end of the bent portion and the data line.

Description

ＴＦＴ－ＬＣＤ 모듈 {Thin Film Transistor - Liquid Crystal Display Module}TFT-LCD Module {Thin Film Transistor-Liquid Crystal Display Module}

본 발명은 디스플레이장치에 관한 것으로, 특히 TFT-LCD 모듈에 관한 것이다.The present invention relates to a display device, and more particularly to a TFT-LCD module.

일반적으로 LCD 모듈은 구동드라이브 IC의 실장방식에 따라 COG(Chip On Glass) 실장방식과 TAB(Tape Automated Bonding) 실장방식으로 구분된다.In general, LCD modules are classified into a chip on glass (COG) mounting method and a tape automated bonding (TAB) mounting method according to a mounting method of a driving drive IC.

COG 실장방식은 LCD 패널의 게이트 영역 및 데이터 영역에 직접 구동드라이브 IC를 실장하여 LCD 패널에 전기적 신호를 전달하는 방식으로, 보통 이방성 도전 필름을 이용하여 구동드라이브 IC를 LCD 패널에 접착한다.In the COG mounting method, a drive drive IC is directly mounted in a gate area and a data area of an LCD panel to transmit an electrical signal to the LCD panel. Usually, an anisotropic conductive film is used to adhere the drive drive IC to the LCD panel.

TAB 실장방식은 구동드라이브 IC가 탑재된 TCP(Tape Carrier Package)를 LCD 패널과 PCB에 접속시키는 작업을 의미한다. TCP와 LCD 패널과의 접속공정은 글래스와 금속의 재질상의 특수성과 약 0.2mm 이하 피치(pitch)의 고정세에 따라 납 대신에 이방성 도전필름(ACF;Anisotropic Conduction Film)을 이용하며, TCP와 PCB의 접속공정은 납을 이용하여 접속하고 있다. 그러나, 후자의 경우에 대해서도 향후 미세 피치의 추세에 따라 이방성 도전필름의 사용이 예상되고 있다.The TAB mounting method refers to the task of connecting a tape carrier package (TCP) with a drive driver IC to the LCD panel and the PCB. The connection process between TCP and LCD panels uses an anisotropic conductive film (ACF) instead of lead, depending on the specificity of the glass and metal material and the fixation of the pitch of about 0.2mm or less. Is connected using lead. However, even in the latter case, the use of anisotropic conductive films is expected in accordance with the trend of fine pitch in the future.

이하, 도면을 참조하여 종래 TFT-LCD 모듈의 구조를 설명한다.Hereinafter, the structure of a conventional TFT-LCD module will be described with reference to the drawings.

도 1은 TAB 실장방식을 이용한 종래의 TFT-LCD 모듈의 개략적인 구조이다.1 is a schematic structure of a conventional TFT-LCD module using a TAB mounting method.

도 1에 도시된 바와 같이, 칼라필터기판(11)과 TFT 기판(12)사이에 액정(13)이 개재된 TFT-LCD 패널이 형성되어 있으며, 상기 두 기판 하부에는 각각 편광판(14)이 부착되어 있다. 상기 칼라필터기판(11)상에 이방성 도전필름인 ACF(15)로 전기적으로 연결된 TCP(16)가 형성되어 있으며, 상기 TCP에는 구동드라이브 IC(17)가 탑재되어 있다. 또, 상기 TCP는 PCB(18)과 납 또는 이방성 도전물질을 매개로 연결되어 있다.As shown in FIG. 1, a TFT-LCD panel having a liquid crystal 13 interposed between a color filter substrate 11 and a TFT substrate 12 is formed, and a polarizing plate 14 is attached to each of the lower substrates. It is. A TCP 16 electrically connected to the ACF 15, which is an anisotropic conductive film, is formed on the color filter substrate 11, and a drive drive IC 17 is mounted on the TCP. In addition, the TCP is connected to the PCB 18 through a lead or anisotropic conductive material.

상기 TCP의 구동드라이브 IC와 TFT-LCD 패널의 링크부위 및 구동흐름을 상세히 설명하면 다음과 같다.The link portion and driving flow of the TCP drive driver IC and the TFT-LCD panel will be described in detail as follows.

도 2a 내지 도 2b는 구동드라이브 IC와 TFT-LCD의 데이터라인 사이의 링크부위를 나타낸 것이다.2A to 2B show a link portion between the drive drive IC and the data line of the TFT-LCD.

도 2a에 도시된 바와 같이, 구동드라이브 IC(21)는 전기적신호를 보내기 위해 데이터라인(22)과 연결되어 있으며, 링크부위에는 구동드라이브 IC에서 데이터라인으로 가는 신호를 스위칭하는 MUX 회로부(23)가 구비되어 있고, MUX 회로부와 구동드라이브 IC 사이의 링크배선(24)과 상판인 칼라필터기판(25)간에는 MUX 의 클락(clock) 오프시 구동드라이브 IC에서 출력되는 전하가 일시적으로 저장된다(26).As shown in FIG. 2A, the drive drive IC 21 is connected to the data line 22 to transmit an electrical signal, and the link portion of the MUX circuit unit 23 switches a signal from the drive drive IC to the data line. The charge output from the drive driver IC when the MUX clock is turned off is temporarily stored between the link wiring 24 between the MUX circuit unit and the drive driver IC and the color filter substrate 25 as the upper plate (26). ).

도 3은 구동드라이브 IC에서 출력되는 전기적신호의 흐름을 나타낸 회로도이다.3 is a circuit diagram illustrating the flow of an electrical signal output from a driving drive IC.

도 3에 도시된 바와 같이, 구동드라이브 IC(31)에서 출력된 전하는 링크부 배선을 거쳐 MUX 회로부의 스위칭에 의해 데이터라인에 최종 인가되도록 되어 있다. 도 3에서의 저항(32)은 링크부 배선의 저항을 말하며 링크부의 캐퍼시턴스(33)는 링크부 배선과 상판인 칼라필터기판 사이의 정전용량을 나타낸 것이다. 데이터라인의 축전용량(35)은 MUX TFT(34) 의 클락(clock) 오프될 때 데이터라인으로 인가되는 전하량을 말한다.As shown in Fig. 3, the electric charge output from the driving drive IC 31 is finally applied to the data line by switching the MUX circuit part via the link part wiring. The resistance 32 in FIG. 3 refers to the resistance of the link portion wiring, and the capacitance 33 of the link portion represents the capacitance between the link portion wiring and the color filter substrate as the upper plate. The storage capacity 35 of the data line refers to the amount of charge applied to the data line when the MUX TFT 34 is clocked off.

여기서, 구동드라이브 IC의 출력이 닫혀진 경우에는 출력 신호가 플로우팅(floating) 상태에 가깝게 되므로 MUX TFT의 클락 신호가 오프되는 순간에 링크부의 전압은 MUX TFT의 채널에서 방전되는 전하에 의해서 전압이 변동되게 되며 그 변동량은 링크부의 정전용량에 반비례한다. 이와 같은 관계는 다음과 같은 식을 표현된다.Here, when the output of the driving drive IC is closed, the output signal is close to the floating state, so the voltage of the link portion varies at the moment when the clock signal of the MUX TFT is turned off due to the charge discharged in the channel of the MUX TFT. The amount of variation is inversely proportional to the capacitance of the link portion. Such a relationship is expressed by the following equation.

△Vlink= (0.5 * Vmux_clock* Cmux_tft)/(Cmux_tft+ Clink)△ V link = (0.5 * V mux_clock * C mux_tft ) / (C mux_tft + C link )

여기서, △Vlink는 링크부의 전압, Vmux_clock*는 MUX TFT 클락 오프시의 전압, Cmux_tft는 MUX TFT의 정전용량, Clink는 링크부의 정전용량을 말한다.Here, ΔV link is the voltage of the link unit, V mux_clock * is the voltage at the MUX TFT clock off, C mux_tft is the capacitance of the MUX TFT, and C link is the capacitance of the link unit.

한편, MUX 방식 구동드라이브 IC는 하나의 핀(pin)이 여러개의 배선을 구동하게 되어 있어 구동드라이브 IC에서 데이터라인으로 연결된 배선의 형태는 데이터라인으로 갈수록 배선의 길이가 패널 중앙부위에서 멀어질수록 길어지게 되어 있다(도 2b 참조).On the other hand, in the MUX type drive drive IC, a single pin drives several wires, so the shape of the wire connected to the data line in the drive drive IC becomes longer as the length of the wire increases from the center of the panel. (See FIG. 2B).

그러나 상기와 같은 종래 TFT-LCD 모듈은 다음과 같은 문제점이 있었다.However, the conventional TFT-LCD module as described above has the following problems.

구동드라이브 IC에서 데이터라인으로 연결된 링크부 배선의 길이가 패널 중앙에서 외곽으로 갈수록 길어지는 형태를 가짐에 따라, 링크부 배선과 상판인 칼라필터기판 사이에 형성되는 정전용량이 패널과의 연결위치에 따라 틀리다. 따라서, MUX TFT의 클락(clock) 오프시 TFT 채널(channel)에서 방전되는 전하량이 링크부의 위치에 따라 틀려지게 되고, 이 전하들에 의해 발생되는 레벨쉬프트(Level Shift 또는 Feedthrough) 전압이 링크부의 중앙부위와 외곽부위에 따라서 다르게 된다. 그 결과, 데이터라인에 인가되는 레벨쉬프트 전압이 위치에 따라 틀리므로 잔상, 플리커, 수직 딤(dim)과 같은 화질 불량을 야기하게 된다.As the length of the link part wiring connected to the data line in the drive drive IC becomes longer from the center of the panel to the outside, the capacitance formed between the link part wiring and the color filter substrate, which is the upper plate, is located at the connection position with the panel. Wrong according Therefore, when the MUX TFT clocks off, the amount of charge discharged in the TFT channel is changed according to the position of the link portion, and the level shift or feedthrough voltage generated by these charges is centered on the link portion. It depends on the part and the outer part. As a result, since the level shift voltage applied to the data line is different depending on the position, image quality defects such as afterimage, flicker, and vertical dim are caused.

본 발명은 이와 같은 문제점을 해결하기 위하여 안출한 것으로, 상기 구동드라이브 IC와 데이터라인 사이 즉, 링크부의 위치별 정전용량을 균일하게 함으로써, 데이터라인으로 인가되는 레벨쉬프트 전압을 방지하고 화질불균일 현상을 최소화하는 TFT-LCD 모듈을 제공하는데 목적이 있다.The present invention has been made to solve such a problem, and by equalizing the capacitance between the drive drive IC and the data line, that is, the position of the link unit, it is possible to prevent the level shift voltage applied to the data line and to eliminate image quality irregularities. It is an object to provide a TFT-LCD module that minimizes.

도 1은 TAB 실장방식을 이용한 종래의 TFT-LCD 모듈의 단면도1 is a cross-sectional view of a conventional TFT-LCD module using a TAB mounting method

도 2a 내지 2b는 구동드라이브 IC 와 TFT-LCD 패널의 링크부위를 설명하기 위한 구조 평면도2A to 2B are structural plan views for explaining the link portion between the drive driver IC and the TFT-LCD panel;

도 3은 구동드라이브 IC에서 출력되는 전기적신호의 흐름을 나타낸 회로도3 is a circuit diagram showing the flow of an electrical signal output from the drive drive IC

도 4는 본 발명의 제 1 실시예에 따른 TFT-LCD 모듈의 평면도4 is a plan view of a TFT-LCD module according to the first embodiment of the present invention;

도 5는 본 발명의 제 2 실시예에 따라 TFT-LCD 모듈의 평면도5 is a plan view of a TFT-LCD module according to a second embodiment of the present invention;

도 6은 본 발명의 제 3 실시예에 따른 TFT-LCD 모듈의 평면도6 is a plan view of a TFT-LCD module according to a third embodiment of the present invention;

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

41 : 구동드라이브 IC 42 : 데이터라인41: drive drive IC 42: data line

43 : MUX 회로부 44 : 링크부 배선43: MUX circuit section 44: link section wiring

45 : 칼라필터기판45: color filter substrate

상기 목적을 달성하기 위한 본 발명의 TFT-LCD 모듈은 구동드라이브 IC가 탑재된 TCP(Tape Carrier Package)와, 상기 TCP에 TAB 실장방식으로 연결된 TFT-LCD 패널과, 상기 구동드라이브 IC에서 인가되는 전기적 신호를 스위칭하는 MUX TFT를 포함하여 구성되는 TFT-LCD 모듈에 있어서, 상기 구동드라이브 IC와 TFT-LCD 패널의 데이터라인을 연결하는 링크부의 배선은 MUX TFT의 클락(clock) 오프(off)시 채널에서 방전되는 전하를 위치에 상관없이 동일수준의 정전용량을 수용하도록 구성된 것을 특징으로 한다.The TFT-LCD module of the present invention for achieving the above object is a tape carrier package (TCP) equipped with a drive drive IC, a TFT-LCD panel connected in a TAB mounting manner to the TCP, and the electrical applied from the drive IC In a TFT-LCD module including a MUX TFT for switching a signal, a wiring of a link portion connecting the driving drive IC and the data line of the TFT-LCD panel is a channel when the clock of the MUX TFT is turned off. The charge discharged at is characterized in that configured to accommodate the same level of capacitance regardless of location.

이하, 실시예를 참조하여 본 발명의 TFT-LCD 모듈을 상세히 설명한다.Hereinafter, the TFT-LCD module of the present invention will be described in detail with reference to embodiments.

도 4는 본 발명의 제 1실시예를 나타낸 도면이다.4 is a diagram showing a first embodiment of the present invention.

도 4에 도시된 바와 같이, 구동드라이브 IC(41)와 데이터라인(42)간의 링크부위에, 더 자세히는 구동드라이브와 MUX 회로부(43) 사이에 있어서 배선의 길이가 짧은 중앙부위의 배선 두께를 넓힘으로써 링크부 배선(44)과 상판인 칼라필터기판(45) 사이에 형성되는 정전용량이 중앙부위와 외곽부위가 동일 수준의 정전용량을 갖도록 한다. 여기서, 일반적으로 링크부 배선의 형성 모양은 링크 배선이 구동드라이브 IC와 연결된 부위, 즉 링크부의 초입부 그리고 링크배선이 MUX회로부와 연결된 부위 즉, 링크부의 말단부는 직선형태를 가지며, 나머지 중간부위는 사선형태를 취하게 되어 있다. 본 발명의 의한 배선 두께를 넓히는 것을 사선부위에 적용시키면 구동드라이브 IC 와 TFT-LCD 패널간의 폭을 넓히게 되는 결과를 가져오게 된다. 따라서, 본 발명은 사선부위의 배선 두께를 넓히지 않고 링크부의 초입부와 말단부 배선 두께를 넓힘으로써 구동드라이브 IC와 TFT-LCD 모듈의 폭은 그대로 유지할 수 있다.As shown in Fig. 4, the thickness of the wiring at the central portion of the shorter length of the wiring between the drive drive IC 41 and the data line 42, and more specifically, between the drive drive and the MUX circuit section 43 is determined. As a result, the capacitance formed between the link portion wiring 44 and the color filter substrate 45 as the upper plate is such that the central portion and the outer portion have the same level of capacitance. Here, in general, the shape of the link wiring is formed in a portion where the link wiring is connected to the driving drive IC, that is, the beginning portion of the link portion and the portion where the link wiring is connected to the MUX circuit portion, that is, the end portion of the link portion has a straight shape, and the remaining intermediate portion It is supposed to take a diagonal form. Increasing the wiring thickness according to the present invention on the diagonal line results in widening the width between the driving drive IC and the TFT-LCD panel. Therefore, the present invention can maintain the width of the drive drive IC and the TFT-LCD module by increasing the thickness of the start and end portions of the link portion without increasing the wiring thickness of the diagonal portion.

한편, 링크부 배선의 두께를 증가시키는 경우 배선의 길이가 짧은 영역에서 저항이 감소하여 배선간의 저항차이가 더욱 커져 다른 부작용이 발생할 가능성을 배제할 수 없다.On the other hand, when the thickness of the link portion wiring is increased, the resistance decreases in a region in which the length of the wiring is short, so that the difference in resistance between the wirings is further increased, which may not exclude the possibility of other side effects.

도 5는 본 발명의 제 2실시예로서, 상기와 같은 배선간의 저항감소 가능성를 방지하기 위해, 배선 두께를 증가시킨 링크 중앙부위의 배선을 일정면적의 패턴과 연결시킨 것을 나타낸 것으로 배선부위를 확대한 도면이다.FIG. 5 illustrates a second embodiment of the present invention, in which wiring at a link center portion having increased wiring thickness is connected to a pattern of a predetermined area in order to prevent the possibility of resistance reduction between the wirings as described above. Drawing.

도 5에 도시된 바와 같이, 구동드라이브 IC(51) 에서 MUX 회로부(53)를 거쳐 데이터라인으로 연결되는 링크부의 배선(52)이, 저항 감소를 최소화하면서 정전용량을 증가시킬 수 있도록 배선에서 좁은 폭의 인입선을 거친 후 정전용량을 형성하도록 일정면적의 패턴(54)을 형성하여 연결한다. 여기서, 상기 패턴(54)은 데이터 배선과 같은 도전성물질이다.As shown in FIG. 5, the wiring 52 of the link portion connected to the data line via the MUX circuit portion 53 in the drive drive IC 51 is narrow in the wiring so that the capacitance can be increased while minimizing the resistance reduction. After passing through the width line, a pattern 54 having a predetermined area is formed so as to form a capacitance. Here, the pattern 54 is a conductive material such as data wiring.

도 6은 본 발명의 제 3실시예를 나타낸 도면이다.6 is a view showing a third embodiment of the present invention.

도 6에 도시된 바와 같이, 구동드라이브 IC(61)와 데이터라인(62) 사이의 링크부위에, 더 자세히는 구동드라이브와 MUX 회로부(63) 사이에 링크배선(64)과 교차되도록 전도성라인(66)을 형성시킴으로써 링크부 배선과 상판인 칼라필터기판(65)간에 형성되는 정전용량이 링크부 중앙부위와 외곽부위가 동일수준의 정전용량을 갖도록 한다.As shown in FIG. 6, a conductive line (not shown) intersects the link line 64 between the drive drive IC 61 and the data line 62, more specifically, between the drive drive and the MUX circuit unit 63. 66), the capacitance formed between the link portion wiring and the color filter substrate 65, which is the upper plate, is such that the center portion and the outer portion of the link portion have the same level of capacitance.

상기 전도성라인은 게이트 배선과 같은 도전성물질로서 게이트 배선이 형성되어 있는 동일 평면상에 형성되어 있고 전도성라인 상에는 절연막이 형성되어 있다. 상기 전도성라인은 링크부 배선과 일종의 병렬 형태의 회로 구조를 갖추게 되어 링크부 위치별 정전용량 차이를 보상하게 되는 효과를 얻을 수 있다.The conductive line is a conductive material such as a gate wiring and is formed on the same plane on which the gate wiring is formed, and an insulating film is formed on the conductive line. The conductive line has a circuit structure of a kind parallel with the link line wiring, thereby obtaining an effect of compensating for the difference in capacitance according to link position.

이상 설명한 바와 같이, 본 발명의 TFT-LCD 모듈은 다음과 같은 효과가 있다.As described above, the TFT-LCD module of the present invention has the following effects.

본 발명의 TFT-LCD 모듈은 구동드라이브 IC와 데이터라인 사이 즉, 링크부 배선에서의 위치별 정전용량의 차이를 감소시킴으로써, 정전용량의 차이에 의해 발생하는 전압으로부터 야기되는 화면불균일 문제를 해소하여 제품의 신뢰도 향상을 꾀할 수 있다.The TFT-LCD module of the present invention eliminates the problem of screen unevenness caused by the voltage generated by the difference in capacitance by reducing the difference in capacitance by position between the drive drive IC and the data line, that is, the link wiring. The reliability of the product can be improved.

Claims (12)

구동드라이브 IC 에서 TFT-LCD 패널의 데이터라인으로 인가되는 전기적 신호를 스위칭하는 MUX 회로부를 구비한 TFT-LCD 모듈에 있어서,A TFT-LCD module having a MUX circuit portion for switching an electrical signal applied from a driving drive IC to a data line of a TFT-LCD panel, 상기 구동드라이브 IC의 출력신호를 상기 MUX 회로부로 전달하는 복수개의 링크 배선들의 두께가 상기 패널의 외곽에서 중앙부쪽으로 갈수록 점차적으로 증가되는 것을 특징으로 하는 TFT-LCD 모듈.TFT-LCD module, characterized in that the thickness of the plurality of link wires for transmitting the output signal of the drive drive IC to the MUX circuit portion gradually increases from the outer side of the panel toward the center portion. 제 1항에 있어서, 상기 복수개의 링크 배선들은 각각의 배선들간의 폭이 일정하게 유지되는 제 1 직선부와, 상기 제 1 직선부로부터 굴곡되어 각각의 배선들간의 폭이 상기 직선부 배선들간의 폭에 비해 확장되는 굴곡부와, 상기 굴곡부의 말단부와 상기 데이터라인과의 사이에 연결되는 제 2 직선부로 구성되는 것을 특징으로 하는 TFT-LCD 모듈.The plurality of link wires of claim 1, wherein each of the plurality of link wires has a first straight portion in which a width between the respective wires is kept constant, and is bent from the first straight portion so that a width between each of the plurality of wires is between the straight portion wires. And a curved portion extending relative to a width, and a second straight portion connected between an end portion of the curved portion and the data line. 제 1항에 있어서, 상기 링크 배선들은 상기 제 1 직선부와 제 2 직선부에 해당하는 부위만 두껍게 형성하는 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module according to claim 1, wherein the link lines form only thick portions corresponding to the first and second straight lines. 제 1 항에 있어서, 상기 링크 배선들 중 중앙부의 소정의 배선들만 두께가 증가된 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module according to claim 1, wherein only predetermined wires in the center of the link wires are increased in thickness. 제 4 항에 있어서, 상기 중앙부에 위치한 링크 배선들은 일정면적을 갖는 도전성 패턴과 연결되는 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module according to claim 4, wherein the link wires positioned in the center portion are connected to a conductive pattern having a predetermined area. 제 5항에 있어서, 상기 도전성 패턴은 상기 데이터 배선과 동일물질인 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module according to claim 5, wherein the conductive pattern is made of the same material as the data line. 제 1항에 있어서, 상기 LCD 패널은,The method of claim 1, wherein the LCD panel, 복수개의 데이터라인 및 게이트라인 그리고 복수개의 화소전극을 구비한 제 1 기판과,A first substrate having a plurality of data lines and gate lines and a plurality of pixel electrodes; 상기 제 1 기판과 대향하여 복수개의 칼라필터 패턴 및 공통전극을 구비한 제 2 기판과,A second substrate having a plurality of color filter patterns and a common electrode facing the first substrate; 상기 제 1 기판과 제 2 기판 사이에 형성된 액정층으로 이루어지는 것을 특징으로 하는 TFT-LCD 모듈.And a liquid crystal layer formed between the first substrate and the second substrate. LCD 패널부와, 상기 패널부로 전기적인 신호를 인가하는 구동 드라이브 IC와, 상기 구동 드라이브 IC와 상기 패널부 사이에 복수개의 링크배선들로 이루어진 링크부를 구비한 TFT-LCD 모듈에 있어서,In a TFT-LCD module having an LCD panel portion, a drive drive IC for applying an electrical signal to the panel portion, and a link portion composed of a plurality of link wirings between the drive drive IC and the panel portion, 상기 복수개의 링크배선들과 절연되며 상기 링크배선들을 가로지르는 방향으로 전도성 라인이 더 구비되는 것을 특징으로 하는 TFT-LCD 모듈.And a conductive line further insulated from the plurality of link wires and in a direction crossing the link wires. 제 8 항에 있어서, 상기 전도성 라인은 상기 링크배선들의 하부에 절연막을 사이에 두고 형성되는 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module according to claim 8, wherein the conductive line is formed with an insulating film interposed between the link wires. 제 8 항에 있어서, 상기 LCD 패널부는,The method of claim 8, wherein the LCD panel unit, 복수개의 데이터라인 및 게이트라인 그리고 복수개의 화소전극을 구비한 제 1 기판과,A first substrate having a plurality of data lines and gate lines and a plurality of pixel electrodes; 상기 제 1 기판과 대향하여 복수개의 칼라필터 패턴 및 공통전극을 구비한 제 2 기판과,A second substrate having a plurality of color filter patterns and a common electrode facing the first substrate; 상기 제 1 기판과 제 2 기판 사이에 형성된 액정층으로 이루어지는 것을 특징으로 하는 TFT-LCD 모듈.And a liquid crystal layer formed between the first substrate and the second substrate. 제 8 항에 있어서, 상기 전도성 라인은 상기 게이트라인과 동일 평면상에 형성하는 것을 특징으로 하는 TFT-LCD 모듈.9. The TFT-LCD module according to claim 8, wherein the conductive line is formed on the same plane as the gate line. 제 8 항에 있어서, 상기 전도성 라인은 상기 게이트라인과 동일물질인 것을 특징으로 하는 TFT-LCD 모듈.The TFT-LCD module of claim 8, wherein the conductive line is made of the same material as the gate line.
KR1020000079592A 2000-12-21 2000-12-21 Thin Film Transistor - Liquid Crystal Display Module KR100606961B1 (en)

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US11/453,083 US7548225B2 (en) 2000-12-21 2006-06-15 Liquid crystal display device and method for fabricating the same
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Publication number Priority date Publication date Assignee Title
KR100835008B1 (en) * 2002-06-25 2008-06-04 엘지디스플레이 주식회사 Liquid crystal display
KR20110061122A (en) * 2009-12-01 2011-06-09 엘지디스플레이 주식회사 Liquid crystal display device and method of fabricating the same

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JP3683294B2 (en) * 1994-09-08 2005-08-17 株式会社 日立ディスプレイズ Liquid crystal display device
JP3081497B2 (en) * 1995-03-30 2000-08-28 三洋電機株式会社 Display device and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100835008B1 (en) * 2002-06-25 2008-06-04 엘지디스플레이 주식회사 Liquid crystal display
KR20110061122A (en) * 2009-12-01 2011-06-09 엘지디스플레이 주식회사 Liquid crystal display device and method of fabricating the same

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