GEL MEMBER FOR OPTICAL USE, METHOD FOR ASSEMBLING OPTICAL DEVICE USING SAME, AND OPTICAL DEVICE

An optical gel member to be used in a gap between light-emitting diode which is a backlight light source of an optical device and light guide plate, as well as an assembling method for an optical device and an optical device using the same. The optical gel member etc. to be used in an interposed sta...

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Bibliographische Detailangaben
Hauptverfasser:	SASAZAWA TAKAHIRO, MASUDA MASAHIKO, SAKURAI HIROHISA, SHIRATORI YUICHI
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	An optical gel member to be used in a gap between light-emitting diode which is a backlight light source of an optical device and light guide plate, as well as an assembling method for an optical device and an optical device using the same. The optical gel member etc. to be used in an interposed state between light guide plate and light-emitting device consisting of a light-emitting diode (LED) in an optical device, characterized by satisfying the following requirements (i) to (iii). (i) The optical gel member consists of a transparent gel such as silicone type gel or acryl type gel, which has a hardness of 0 to 80 in JIS-A hardness according to JIS K6253, or 20 to 200 in penetration (25°C) in accordance with JIS K2207; (ii) The optical gel member is in a string-like form, and the peripheral surface thereof is in contact with light guide plate and light-emitting device; (iii) The optical gel member has a repulsive force of 12 MPa or less at a compression rate of 30%.