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1. (WO2019031355) BACKLIGHT UNIT AND ELECTRONIC DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/031355 International Application No.: PCT/JP2018/028877
Publication Date: 14.02.2019 International Filing Date: 01.08.2018
IPC:
F21S 2/00 (2016.01) ,F21V 19/00 (2006.01) ,F21V 29/503 (2015.01) ,F21V 29/508 (2015.01) ,F21V 29/70 (2015.01) ,G02F 1/133 (2006.01) ,G02F 1/1333 (2006.01) ,G02F 1/13357 (2006.01) ,H05B 37/02 (2006.01) ,F21Y 105/10 (2016.01) ,F21Y 115/10 (2016.01)
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
19
Fastening of light sources or lamp holders
[IPC code unknown for F21V 29/503][IPC code unknown for F21V 29/508][IPC code unknown for F21V 29/70]
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
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)!]
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
37
Circuit arrangements for electric light sources in general
02
Controlling
[IPC code unknown for F21Y 105/10][IPC code unknown for F21Y 115/10]
Applicants:
シャープ株式会社 SHARP KABUSHIKI KAISHA [JP/JP]; 大阪府堺市堺区匠町1番地 1, Takumi-cho, Sakai-ku, Sakai City, Osaka 5908522, JP
Inventors:
齊藤 浩二 SAITOH, Kohji; --
森 泰樹 MORI, Yasuki; --
植畑 正樹 UEHATA, Masaki; --
近藤 和也 KONDOH, Kazuya; --
吉本 一久 YOSHIMOTO, Kazuhisa; --
川本 晃祐 KAWAMOTO, Kosuke; --
Agent:
特許業務法人HARAKENZO WORLD PATENT & TRADEMARK HARAKENZO WORLD PATENT & TRADEMARK; 大阪府大阪市北区天神橋2丁目北2番6号 大和南森町ビル Daiwa Minamimorimachi Building, 2-6, Tenjinbashi 2-chome Kita, Kita-ku, Osaka-shi, Osaka 5300041, JP
Priority Data:
2017-15366308.08.2017JP
Title (EN) BACKLIGHT UNIT AND ELECTRONIC DEVICE
(FR) UNITÉ DE RÉTROÉCLAIRAGE ET DISPOSITIF ÉLECTRONIQUE
(JA) バックライトユニット及び電子機器
Abstract:
(EN) According to the present invention, a direct backlight unit is obtained, while suppressing increase in the size of a display control substrate. A direct backlight unit (2) according to the present invention is configured such that a constant current IC (20) having a plurality of constant current circuits (C1-C16) is provided on a substrate (7) which is provided with an LED (10).
(FR) La présente invention permet d'obtenir une unité de rétroéclairage direct, tout en supprimant une augmentation de la taille d'un substrat de commande d'affichage. Une unité de rétroéclairage direct (2) selon la présente invention est conçue de sorte qu'un CI à courant constant (20) comportant une pluralité de circuits à courant constant (C1-C16) soit disposé sur un substrat (7) pourvu d'une DEL (10).
(JA) 表示制御基板のサイズ増大を抑制しつつ直下型のバックライトユニットを得る。直下型のバックライトユニット(2)は、複数の定電流回路(C1~C16)を有する定電流IC(20)が、LED(10)が設けられた基材(7)に設けられている。
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)