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1. (WO2015046240) ILLUMINATION DEVICE AND DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/046240 International Application No.: PCT/JP2014/075270
Publication Date: 02.04.2015 International Filing Date: 24.09.2014
IPC:
F21S 2/00 (2006.01) ,F21V 17/00 (2006.01) ,G02B 6/00 (2006.01) ,G02F 1/1333 (2006.01) ,G02F 1/13357 (2006.01) ,F21Y 101/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
2
Systems of lighting devices, not provided for in main groups F21S4/-F21S10/119
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
17
Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
Y
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V104
101
Point-like light sources
02
Miniature, e.g. light emitting diodes (LED)
Applicants:
堺ディスプレイプロダクト株式会社 SAKAI DISPLAY PRODUCTS CORPORATION [JP/JP]; 大阪府堺市堺区匠町1番地 1, Takumicho, Sakai-ku, Sakai-shi, Osaka 5908522, JP
Inventors:
杉本 有正 SUGIMOTO, Arimasa; JP
Agent:
河野 英仁 KOHNO, Hideto; JP
Priority Data:
2013-20047126.09.2013JP
Title (EN) ILLUMINATION DEVICE AND DISPLAY DEVICE
(FR) DISPOSITIF D'ÉCLAIRAGE ET DISPOSITIF D'AFFICHAGE
(JA) 照明装置及び表示装置
Abstract:
(EN) Provided are an illumination device and display device capable of even illumination. A positioning recess (225) provided in a light guide plate (22) and a portion in the periphery of the recess (225) are covered by a cover (26) from one surface side of the light-guide plate (22). As a result, the cover (26) suppresses the emission of light emitted from the vicinity of the recess (225) on the one surface of the light guide plate (22) onto the outer portion of a backlight unit (2) that functions as an illumination device. Thus, even if light is scattered at the recess (225) of the light guide plate (22) and the brightness of the vicinity of the recess (225) is greater than the brightness of other portions, the leaking of excessively bright light onto the outer portion of the backlight unit (2) (in this case, the side of a display panel (11)) is suppressed. That is, brightness unevenness caused by the recess (225) of the light guide plate (22) is suppressed.
(FR) L'invention concerne un dispositif d'éclairage et un dispositif d'affichage permettant d'obtenir un éclairage uniforme. Un évidement de positionnement (225) ménagé dans une plaque de guidage de lumière (22) et une partie située à la périphérie de l'évidement (225) sont recouvertes par un couvercle (26) à partir d'un côté de surface de la plaque de guidage de lumière (22). En conséquence, le couvercle (26) supprime l'émission de lumière émise depuis voisinage de l'évidement (225), à la surface de la plaque de guidage de lumière (22), jusqu'à la partie extérieure d'une unité de rétroéclairage (2) qui fonctionne comme un dispositif d'éclairage. Ainsi, même si la lumière est diffusée au niveau de l'évidement (225) de la plaque de guidage de lumière (22) et si la luminosité au voisinage de l'évidement (225) est supérieure à la luminosité des autres parties, la fuite de lumière qui brille de manière excessive sur la partie extérieure de l'unité de rétroéclairage (2) (dans ce cas, le côté d'un écran d'affichage (11) est supprimée. Les irrégularités de luminosité dues à l'évidement (225) de la plaque de guidage de lumière (22) sont alors supprimées.
(JA)  均一に照明することができる照明装置及び表示装置を提供する。 導光板22に設けられている位置決め用の凹部225及び凹部225の周縁部分を、導光板22の一面側から被覆部26が被覆する。このため、導光板22の一面における凹部225近傍から出射する光は、被覆部26によって、照明装置としてのバックライトユニット2の外部に出射することが抑制される。故に、たとえ導光板22の凹部225にて光が散乱し、凹部225近傍の明るさが他部よりも大きいとしても、過剰に明るい光がバックライトユニット2の外部(この場合、表示パネル11側)へ漏れ出ることが抑制される。即ち、導光板22の凹部225に起因する輝度ムラが抑制される。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)