SPLIT TYPE TFT ELEMENT STRUCTURE FOR LARGE SCREEN DISPLAY, AND DEFECTIVE TFT TREATMENT METHOD THEREFOR

The present invention relates to a split type TFT element structure for a large screen display, and a defective TFT treatment method therefor. In the designing of pixels of a large screen display, the present invention splits a TFT constituting a pixel into a plurality of unit TFTs, interconnects th...

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Bibliographische Detailangaben
Hauptverfasser:	YOO, Byungwook, LEE, Jeongno, HAN, Chuljong
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SEMICONDUCTOR DEVICES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The present invention relates to a split type TFT element structure for a large screen display, and a defective TFT treatment method therefor. In the designing of pixels of a large screen display, the present invention splits a TFT constituting a pixel into a plurality of unit TFTs, interconnects the same in parallel, and releases the parallel connection of only the corresponding TFT in which a defect has occurred, thereby enabling the corresponding TFT to be prevented from becoming a defective pixel, when a unit TFT in which a defect has occurred exists among the unit TFTs. Therefore, in the designing of pixels of a large screen display, yield reduction caused by defective pixels can be alleviated. La présente invention porte sur une structure d'élément TFT du type divisé destinée à un grand écran d'affichage, et sur un procédé de traitement de TFT défectueux associé. Dans la conception de pixels d'un grand écran d'affichage, la présente invention divise un TFT constituant un pixel en une pluralité de TFT unitaires, interconnecte ces derniers en parallèle, et libère uniquement la connexion parallèle du TFT correspondant dans lequel un défaut est apparu, ce qui permet d'empêcher que le TFT correspondant ne devienne un pixel défectueux, lorsqu'un TFT unitaire dans lequel un défaut est apparu se trouve parmi les TFT unitaires. Par conséquent, dans la conception de pixels d'un grand écran d'affichage, une réduction de rendement due à des pixels défectueux peut être atténuée. 본 발명은 대화면 디스플레이용 분할형 TFT 소자 구조 및 그의 불량 TFT 처리 방법에 관한 것이다. 대화면 디스플레이의 화소 설계에 있어서, 본 발명은 화소를 구성하는 TFT를 복수의 단위 TFT로 분할하고 서로 병렬로 연결하고, 단위 TFT들 중에서 불량이 발생된 단위 TFT가 존재할 경우, 불량이 발생된 해당 TFT만의 병렬 연결을 해제함으로써, 해당 TFT가 불량화소가 되는 것을 방지할 수 있다. 따라서 대화면 디스플레이의 화소 설계에 있어서, 불량 화소에 따른 수율 저하를 개선할 수 있다.