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1. WO2020196572 - PLANAR LIGHT SOURCE DEVICE, AND DISPLAY DEVICE

Publication Number WO/2020/196572
Publication Date 01.10.2020
International Application No. PCT/JP2020/013185
International Filing Date 25.03.2020
IPC
F21S 2/00 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/-F21S10/113
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
F21Y 115/10 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
115Light-generating elements of semiconductor light sources
10Light-emitting diodes
Applicants
  • 株式会社エンプラス ENPLAS CORPORATION [JP]/[JP]
Inventors
  • 大橋 祐介 OHASHI, Yusuke
Agents
  • 特許業務法人鷲田国際特許事務所 WASHIDA & ASSOCIATES
Priority Data
2019-06067827.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PLANAR LIGHT SOURCE DEVICE, AND DISPLAY DEVICE
(FR) DISPOSITIF DE SOURCE DE LUMIÈRE PLANE ET DISPOSITIF D'AFFICHAGE
(JA) 面光源装置および表示装置
Abstract
(EN)
The objective of the present invention is to provide a planar light source device with which it is possible to suppress visibility of a bright portion generated in the shape of a strip, and to improve uniformity of a light emitting surface. This planar light source device includes a casing, a light emitting device row including a plurality of light emitting devices arranged in a first direction, a reflective panel including a reflection adjusting portion, and a light diffusing panel. The reflection adjusting portion includes first reflecting portions and second reflecting portions arranged alternately in the first direction. In the first direction, a center-to-center distance between two adjacent light emitting devices is different from a total repetition length of the first reflecting portions and second reflecting portions that are adjacent to one another.
(FR)
L'objectif de la présente invention est de fournir un dispositif de source de lumière plane avec lequel il est possible de supprimer la visibilité d'une partie lumineuse générée sous la forme d'une bande, et d'améliorer l'uniformité d'une surface d'émission de lumière. Ce dispositif de source de lumière plane comprend un boîtier, une rangée de dispositifs électroluminescents comprenant une pluralité de dispositifs électroluminescents agencés dans une première direction, un panneau réfléchissant comprenant une partie de réglage de réflexion, et un panneau de diffusion de lumière. La partie de réglage de réflexion comprend des premières parties réfléchissantes et des secondes parties réfléchissantes disposées en alternance dans la première direction. Dans la première direction, une distance centre à centre entre deux dispositifs électroluminescents adjacents est différente d'une longueur de répétition totale des premières parties réfléchissantes et des secondes parties réfléchissantes qui sont adjacentes les unes aux autres.
(JA)
帯状に発生する明部の視認性を抑制し、発光面の均一性を向上させることができる面光源措置を提供すること。面光源装置は、筐体と、第1方向に配置された複数の発光装置を含む発光装置列と、反射調整部を含む反射板と、光拡散板とを有する。反射調整部は、第1方向に沿って交互に配置された第1反射部および第2反射部を含む。第1方向において、隣接する2つの発光装置間の中心間距離は、隣接する第1反射部および第2反射部の合計の繰り返し長さと異なる。
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