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1. WO2000043814 - DYE COMBINATIONS FOR IMAGE ENHANCEMENT FILTERS FOR COLOR VIDEO DISPLAYS

Publication Number WO/2000/043814
Publication Date 27.07.2000
International Application No. PCT/US2000/001349
International Filing Date 21.01.2000
Chapter 2 Demand Filed 21.08.2000
IPC
G02B 5/22 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
20Filters
22Absorbing filters
H01J 29/89 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
29Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/113
86Vessels; Containers; Vacuum locks
89Optical or photographic arrangements structurally combined with the vessel
CPC
G02B 5/223
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
20Filters
22Absorbing filters
223containing organic substances, e.g. dyes, inks or pigments
H01J 11/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
11Gas-filled discharge tubes with alternating current induction of the discharge, e.g. AC-PDPs [Alternating Current Plasma Display Panels]
10AC-PDPs with at least one main electrode being out of contact with the plasma
H01J 11/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
11Gas-filled discharge tubes with alternating current induction of the discharge, e.g. AC-PDPs [Alternating Current Plasma Display Panels]
20Constructional details
34Vessels, containers or parts thereof, e.g. substrates
44Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
H01J 2211/444
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
2211Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
20Constructional details
34Vessels, containers or parts thereof, e.g. substrates
44Optical arrangements or shielding arrangements, e.g. filters or lenses
444Means for improving contrast or colour purity, e.g. black matrix or light shielding means
H01J 29/898
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
29Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
86Vessels; Containers; Vacuum locks
89Optical or photographic arrangements structurally combined ; or co-operating; with the vessel
898Spectral filters
Y10T 428/24942
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
24Structurally defined web or sheet [e.g., overall dimension, etc.]
24942including components having same physical characteristic in differing degree
Applicants
  • ASAHI GLASS COMPANY, LIMITED [JP/JP]; 12-1, Yurakucho 1-chome Chiyoda-ku Tokyo 100-8405, JP
Inventors
  • TENG, Chia-Chi; US
  • SUH, Suk, Youn; US
  • MALINOSKI, George; US
Agents
  • OBLON, Norman, F. ; Oblon, Spivak, McClelland, Maier & Neustadt, P.C. 4th floor 1755 Jefferson Davis Highway Arlington, VA 22202, US
Priority Data
09/234,31421.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DYE COMBINATIONS FOR IMAGE ENHANCEMENT FILTERS FOR COLOR VIDEO DISPLAYS
(FR) COMBINAISONS DE COULEURS POUR FILTRES AMELIORANT L'IMAGE ET S'APPLIQUANT A DES ECRANS VIDEO COULEUR
Abstract
(EN)
A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.
(FR)
L'invention porte sur un filtre passe-bande contenant des couleurs rouges spécifiques, seules ou en combinaison avec d'autres couleurs. Ce filtre transmet sélectivement des longueurs d'onde prédéterminées de couleur primaire, et absorbe sélectivement des longueurs d'onde différentes de la longueur d'onde prédéterminée de la couleur primaire. Ce filtre est notamment utile pour améliorer le contraste ou les écrans à plasma couleur en absorbant la lumière visible émise par l'écran à 590 nm.
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