LIGHT GUIDE MEMBER, SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE

• Main Authors: INOUE AKIRA, ARAKAWA FUMIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2016
• Subjects: 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; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a light guide member into which a quantum dot layer containing quantum dots is assembled, in an excellently practical mode.SOLUTION: A light guide member 22 includes: a glass-based light guide plate 30 having a light emission surface 31 and a light incident surface 33 facing a direction different from the light emission surface 31; a low refractive index layer 80 connected to the light emission surface 31 of the light guide plate 30 and having a refractive index lower than that of the light guide plate 30; a quantum dot layer 60 connected to a surface on the opposite side to the surface connected to the light guide plate 30, of the low refractive index layer 80, and containing quantum dots 61; and a barrier layer 85 covering a surface on the opposite side to the surface connected to the low refractive index layer 80, of the quantum dot layer 60.SELECTED DRAWING: Figure 1 【課題】量子ドットを含む量子ドット層が組み込まれた導光部材を実用性に優れた態様で提供する。【解決手段】導光部材２２は、出光面３１、及び、出光面３１とは異なる方向を向く入光面３３を有するガラス製の導光板３０と、導光板３０の出光面３１に接合され導光板３０よりも屈折率の低い低屈折率層８０と、低屈折率層８０の導光板３０に接合された面とは反対側の面に接合され、量子ドット６１を含む量子ドット層６０と、量子ドット層６０の低屈折率層８０に接合された面とは反対側の面を覆うバリア層８５と、を備える。【選択図】図１