UV CURING SYSTEM APLLYING LIQUID CRYSTAL MASK

An ultraviolet (UV) curing system of the present invention comprises: a light emitting module (100) in which one surface (S), on which a plurality of light emitting devices (110) are disposed, faces a panel (P); a liquid crystal mask (200) disposed between the panel (P) and the light emitting module...

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Bibliographische Detailangaben
Hauptverfasser:	KUNG YOUNG KIM, KANG, YONG HOON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPRAYING OR ATOMISING IN GENERAL TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An ultraviolet (UV) curing system of the present invention comprises: a light emitting module (100) in which one surface (S), on which a plurality of light emitting devices (110) are disposed, faces a panel (P); a liquid crystal mask (200) disposed between the panel (P) and the light emitting module (100) and including a plurality of pixels (PX), each of the plurality of pixels includes an electrode and a liquid crystal in which penetration of light is determined according to a voltage applied to the electrode; and a control unit (300) applying the voltage to each of the light emitting devices (110) and the pixels (PX). According to control of the control unit (300), the light emitting device (110) located at a point corresponding to a predetermined area on the panel (P) among the plurality of light emitting devices (110) is turned on and the pixel (PX) disposed at a point corresponding to the predetermined area among the plurality of pixels (PX) transmits light. Accordingly, uniform intensity of light is emitted only to a predetermined area on the panel (P), thereby reducing a defect rate of products. 본 발명의 광경화시스템은 복수 개의 발광소자(110)가 배치되는 일면(S)이 패널(P)과 마주하는 발광모듈(100); 상기 패널(P)과 상기 발광모듈(100) 사이에 배치되고, 전극 및 상기 전극에 가해지는 전압에 따라 빛의 통과여부가 결정되는 액정을 각각 구비하는 복수 개의 픽셀(PX)을 포함하는 액정마스크(200); 및 각각의 상기 발광소자(110) 및 픽셀(PX)에 전압을 인가하는 제어부(300)를 포함할 수 있다. 상기 제어부(300)의 제어에 따라, 상기 복수 개의 발광소자(110) 중에서 상기 패널(P) 상의 소정의 영역과 대응하는 지점에 위치하는 발광소자(110)가 점등되고, 상기 복수 개의 픽셀(PX) 중에서 상기 소정의 영역과 대응하는 지점에 위치하는 픽셀(PX)이 빛을 통과시킨다. 이에, 패널(P) 상의 소정의 영역에만 균일한 세기의 빛이 조사되어 제품불량률을 저감할 수 있다.