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1. WO2007141963 - DIELECTRIC BARRIER DISCHARGE LAMP, BACKLIGHT DEVICE, AND LIQUID CRYSTAL DISPLAY

Publication Number WO/2007/141963
Publication Date 13.12.2007
International Application No. PCT/JP2007/058509
International Filing Date 19.04.2007
IPC
H01J 65/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
65Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
F21S 2/00 2006.01
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 105/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
105Planar light sources
CPC
G02F 1/133604
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; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
1336Illuminating devices
133602Direct backlight
133604with lamps
H01J 65/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
65Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
Applicants
  • パナソニック株式会社 PANASONIC CORPORATION [JP]/[JP] (AllExceptUS)
  • 広橋 正樹 HIROHASHI, Masaki (UsOnly)
  • 畑岡 真一郎 HATAOKA, Shin'ichiro (UsOnly)
Inventors
  • 広橋 正樹 HIROHASHI, Masaki
  • 畑岡 真一郎 HATAOKA, Shin'ichiro
Agents
  • 田中 光雄 TANAKA, Mitsuo
Priority Data
2006-16064309.06.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DIELECTRIC BARRIER DISCHARGE LAMP, BACKLIGHT DEVICE, AND LIQUID CRYSTAL DISPLAY
(FR) LAMPE À DÉCHARGE À BARRIÈRE DIÉLECTRIQUE, DISPOSITIF DE RÉTROÉCLAIRAGE ET AFFICHAGE À CRISTAUX LIQUIDES
(JA) 誘電体バリア型放電ランプ、バックライト装置、及び液晶表示装置
Abstract
(EN)
A dielectric barrier discharge lamp (100A) equipped with a pair of external electrodes (11A, 11B) arranged in series along the direction of tube axis α on the outside of a bulb (10). The lamp capacity C0, which is the capacitance between the pair of external electrodes (11A, 11B), is set such that the quantity q0 of charges discharged per unit length of the external electrode (11A, 11B) and per one discharge is smaller than 100 nC/m between the pair of external electrodes (11A, 11B). The lamp capacity C0 can be adjusted by the width w, the length L of the external electrodes (11A, 11B) and the air gap distance d to the bulb (10). Consequently, high lamp efficiency can be achieved.
(FR)
La présente invention concerne une lampe à décharge à barrière diélectrique (100A) équipée d'une paire d'électrodes externes (11A, 11B) disposées en série le long de la direction de l'axe de tube α à l'extérieur d'une ampoule (10). La capacité de lampe C0, qui est la capacitance entre la paire d'électrodes externes (11A, 11B), est réglée de sorte que la quantité q0 de charges déchargées par unité de longueur de l'électrode externe (11A, 11B) et par décharge soit inférieure à 100 nC/m entre la paire d'électrodes externes (11A, 11B). La capacité de lampe C0 peut être ajustée par la longueur w, la longueur L des électrodes externes (11A, 11B) et la distance libre d vers l'ampoule (10). Par conséquent, un rendement de lampe élevé peut être atteint.
(JA)
not available
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