KR930022135A - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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Publication number
KR930022135A
KR930022135A KR1019920005609A KR920005609A KR930022135A KR 930022135 A KR930022135 A KR 930022135A KR 1019920005609 A KR1019920005609 A KR 1019920005609A KR 920005609 A KR920005609 A KR 920005609A KR 930022135 A KR930022135 A KR 930022135A
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KR
South Korea
Prior art keywords
electrostatic discharge
liquid crystal
crystal display
display device
static electricity
Prior art date
Application number
KR1019920005609A
Other languages
Korean (ko)
Other versions
KR100244183B1 (en
Inventor
소희섭
Original Assignee
이헌조
주식회사 금성사
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Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019920005609A priority Critical patent/KR100244183B1/en
Publication of KR930022135A publication Critical patent/KR930022135A/en
Application granted granted Critical
Publication of KR100244183B1 publication Critical patent/KR100244183B1/en

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Classifications

    • 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

Abstract

본 발명은 종래의 TFT-LCD에 있어서의 TFT어레이 공정이 진행되는 도중에 정전기가 발생하게 되어 게이트-소오스/드레인간의 절연막중에 취약한 부분이 파괴되어 최종 LCD화면상에 결함으로 나타나게 되는 문제점을 해결하기 위한 것으로, 전화면의 온/오프 테스트를 가능하게 하는 동시에 워드라인과 비트라인사이의 정전기를 TFT가 아닌 다른 정전기 방전소자를 통해 방전시켜 정전기로 인한 TFT의 손실을 방지한 것이다.The present invention is to solve the problem that the static electricity is generated during the TFT array process in the conventional TFT-LCD, the vulnerable portion of the insulating film between the gate-source / drain is destroyed and appears as a defect on the final LCD screen. This enables full screen on / off test and simultaneously prevents the loss of the TFT due to the static electricity by discharging the static electricity between the word line and the bit line through an electrostatic discharge element other than the TFT.

즉, 워드라인을 각각 연결한 워드라인 연결전극과 비트라인을 각각 연결한 비트라인 연결전극사이에 정전기 방전소자를 설치하였다. 따라서, 수율이 향상된다.That is, an electrostatic discharge device is installed between the word line connection electrode connecting the word lines and the bit line connection electrode connecting the bit lines, respectively. Thus, the yield is improved.

Description

액정 표시 소자Liquid crystal display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 TFT-LCD의 구성도.2 is a block diagram of a TFT-LCD of the present invention.

제3도는 제2도의 C부분을 상세하게 나타낸 평면도.3 is a plan view showing part C of FIG. 2 in detail.

제4도는 제3도의 A-A' 선상의 구조단면도.4 is a structural cross-sectional view taken along line A-A 'of FIG.

제5도는 제4도의 변형도5 is a variation of FIG.

제6도는 본 발명에 따른 전압-전류 특성도.6 is a voltage-current characteristic diagram according to the present invention.

Claims (4)

TFT어레이 구조의 워드라인 연결 전극과 비트라인 연결전극사이에 정전기를 방전시키기 위한 정전기 방전 소자를 구비하여 이루어짐을 특징으로 하는 액정표시소자.And an electrostatic discharge element for discharging static electricity between the word line connection electrode and the bit line connection electrode of the TFT array structure. 제1항에 있어서, 정전기 방전소자는 상호병렬연결된 한쌍 또는 복수쌍의 TFT로 이루어지고, 이 TFT는 게이트 전극과 드레인 영역이 연결된 형태로 서로 반대방향으로 배치된 구조임을 특징으로 하는 액정표시소자.2. The liquid crystal display device according to claim 1, wherein the electrostatic discharge device is composed of a pair or a plurality of TFTs connected in parallel with each other, and the TFTs are arranged in opposite directions with the gate electrode and the drain region connected to each other. 제2항에 있어서, 정전기 방전소자의 드레인 영역이 게이트 전극의 일부와 평면적으로 겹치는 구조임을 특징으로 하는 액정표시소자.The liquid crystal display device according to claim 2, wherein the drain region of the electrostatic discharge device overlaps with a portion of the gate electrode in plan view. 제2항에 있어서, 정전기 방전소자의 드레인 영역이 게이트 전극과 평면적으로 겹치지 않는 오프-셋 구조임을 특징으로 하는 액정표시소자.3. The liquid crystal display device according to claim 2, wherein the drain region of the electrostatic discharge device has an off-set structure which does not overlap with the gate electrode in plan view. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019920005609A 1992-04-03 1992-04-03 Liquid crystal display element KR100244183B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920005609A KR100244183B1 (en) 1992-04-03 1992-04-03 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920005609A KR100244183B1 (en) 1992-04-03 1992-04-03 Liquid crystal display element

Publications (2)

Publication Number Publication Date
KR930022135A true KR930022135A (en) 1993-11-23
KR100244183B1 KR100244183B1 (en) 2000-02-01

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KR1019920005609A KR100244183B1 (en) 1992-04-03 1992-04-03 Liquid crystal display element

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100299683B1 (en) * 1998-09-03 2001-10-27 윤종용 LCD Display
KR100726635B1 (en) * 2005-04-19 2007-06-12 엘지전자 주식회사 Mother Glass For Organic Electro Luminescence Device and Fabricating Method of Organic Electro Luminescence Device Using The Same
KR100956345B1 (en) * 2003-07-02 2010-05-06 삼성전자주식회사 Thin film transistor array panels

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3326327B2 (en) * 1996-05-13 2002-09-24 株式会社日立製作所 LCD panel
KR100502097B1 (en) * 1998-03-12 2005-11-11 삼성전자주식회사 Static electricity protection circuit for liquid crystal display
KR101133768B1 (en) 2005-03-07 2012-04-09 삼성전자주식회사 Display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100299683B1 (en) * 1998-09-03 2001-10-27 윤종용 LCD Display
KR100956345B1 (en) * 2003-07-02 2010-05-06 삼성전자주식회사 Thin film transistor array panels
KR100726635B1 (en) * 2005-04-19 2007-06-12 엘지전자 주식회사 Mother Glass For Organic Electro Luminescence Device and Fabricating Method of Organic Electro Luminescence Device Using The Same

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Publication number Publication date
KR100244183B1 (en) 2000-02-01

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