EP1156507A2 - Ecran à plasma avec luminophore activé par du terbium(III) - Google Patents

Ecran à plasma avec luminophore activé par du terbium(III) Download PDF

Info

Publication number
EP1156507A2
EP1156507A2 EP01000145A EP01000145A EP1156507A2 EP 1156507 A2 EP1156507 A2 EP 1156507A2 EP 01000145 A EP01000145 A EP 01000145A EP 01000145 A EP01000145 A EP 01000145A EP 1156507 A2 EP1156507 A2 EP 1156507A2
Authority
EP
European Patent Office
Prior art keywords
layer
color filter
phosphor
filter layer
green
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01000145A
Other languages
German (de)
English (en)
Other versions
EP1156507B1 (fr
EP1156507A3 (fr
Inventor
Thomas JÜSTEL
Helmut Bechtel
Joachim Opitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Intellectual Property and Standards GmbH, Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP1156507A2 publication Critical patent/EP1156507A2/fr
Publication of EP1156507A3 publication Critical patent/EP1156507A3/fr
Application granted granted Critical
Publication of EP1156507B1 publication Critical patent/EP1156507B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/16—Optical or photographic arrangements structurally combined with the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J2211/42—Fluorescent layers

Definitions

  • the invention relates to a plasma screen equipped with a front plate, which has a glass plate on which a dielectric layer and a protective layer are applied, with a carrier plate equipped with a phosphor layer, which comprises a red and a blue phosphor and a green, Tb 3+ - contains activated phosphor, with a rib structure that divides the space between the front plate and the carrier plate into plasma cells that are filled with a gas, and with one or more electrode arrays on the front plate and the carrier plate for generating silent electrical discharges in the plasma cells .
  • Plasma screens allow color images with high resolution, large screen diagonal and are of compact design.
  • a plasma screen has a hermetic closed glass cell, which is filled with a gas, arranged with a grid Electrodes on. Applying an electrical voltage causes a gas discharge that produces light in the ultraviolet range (145 to 185 nm). By Phosphors can convert this light into visible light and through the front panel emitted from the glass cell to the viewer.
  • Phosphors are used for plasma screens, which are particularly efficient under vacuum UV excitation.
  • green-emitting phosphors are, for example, Zn 2 SiO 4 : Mn (ZSM) or BaAl 12 O 19 : Mn (BAL). Both materials show a saturated, green emission color with a high y value of y> 0.7.
  • a disadvantage of both materials is their relatively long decay time t 1/10 , which is, for example, 30 ms for Zn 2 SiO 4 with 2.5% Mn. This is because the transition 4 T 1 ⁇ 6 A 1 relevant for the emission of light is spin-prohibited.
  • Tb 3+ -activated phosphors are temperature and photostable, since Tb 3+ is difficult to oxidize to Tb 4+ .
  • Another advantage of these phosphors over Mn 2+ -activated phosphors is their shorter decay time t 1/10 , which is between 2 and 10 ms, depending on the host lattice.
  • US Pat. No. 6,004,481 therefore describes a green-emitting, Tb 3+ -activated phosphor for applications in plasma screens which has the composition (Y 1-xyz Gd x Tb y Ce z ) BO 3 , where 0.0 ⁇ x ⁇ 0.2, 0.01 ⁇ y ⁇ 0.1 and 0.0 ⁇ z ⁇ 0.1.
  • Tb 3+ -activated phosphors A major disadvantage of Tb 3+ -activated phosphors is their yellow-green color point, which has a low y value of y ⁇ 0.62.
  • the invention has for its object to provide a plasma screen with a Tb 3+ -activated phosphor, the green pixels provide light with an improved color point.
  • a plasma screen equipped with a front plate which has a glass plate on which a dielectric layer and a protective layer are applied, with a carrier plate equipped with a phosphor layer which comprises a red and a blue phosphor and a green, Tb Contains 3+ -activated phosphor, with a rib structure that divides the space between the front plate and the carrier plate into plasma cells that are filled with a gas, with one or more electrode arrays on the front plate and the carrier plate for generating silent electrical discharges in the plasma cells and with a green color filter layer.
  • Tb 3+ -activated phosphors In addition to strong emission of light with a wavelength between 540 and 550 nm, Tb 3+ -activated phosphors also have emission bands in the yellow and red spectral range, albeit significantly weaker. The intensity of these emission bands can be reduced by a green color filter layer and thus the y values of the color points of the Tb 3+ -activated phosphors can be increased. Green color filter layers absorb strongly above 580 nm, which also reduces the intensity of the emission lines of the neon, which lie in this spectral range and reduce the color saturation of green and blue-emitting phosphors. It is preferred that the green color filter layer is between the dielectric layer and the protective layer.
  • the color filter layer can be applied to a flat surface and the layer thickness of the color filter layer does not vary with the different ones Areas of the front panel.
  • the green color filter layer is structured in relation to the areas of the phosphor layer with green, Tb 3+ -activated phosphor.
  • the color filter layer be copper phthalocyanine or Contains derivative of copper phthalocyanine.
  • Copper phthalocyanine or a derivative of copper phthalocyanine have a high color purity and a transmission maximum at the wavelength of the light emitted by Tb 3+ -activated phosphors.
  • the green, Tb 3+ -activated phosphor is selected from the group (Y x Gd 1-x ) BO 3 : Tb (0 ⁇ x ⁇ 1), LaPO 4 : Tb, (Y x Gd 1 -x ) 3 Al 5 O 12 : Tb (0 ⁇ x ⁇ 1), CeMgAl 11 O 19 : Tb, GdMgB 5 O 10 : Ce, Tb, (Y x Gd 1-x ) 2 SiO 5 : Tb (0 ⁇ x ⁇ 1), (In x Gd 1-x ) BO 3 : Tb (0 ⁇ x ⁇ 1), Gd 2 O 2 S: Tb, LaOBr: Tb, LaOCl: Tb and LaPO 4 : Ce, Tb.
  • Tb 3+ -activated phosphors are particularly efficient green-emitting phosphors when excited with VUV light.
  • an additional red color filter layer is structured compared to the Areas of the phosphor layer with red phosphor is located.
  • an additional blue color filter layer is structured in relation to one another the areas of the phosphor layer with blue phosphor.
  • An additional red or blue or red and blue color filter layer increases the LCP (Luminance Contrast Performance) value of the entire plasma screen.
  • the electrodes have a front plate 1 and a carrier plate 2.
  • the front panel 1 contains a glass plate 3, on which a dielectric layer 4 and a protective layer thereon 5 are applied.
  • the protective layer 5 is preferably made of MgO and Dielectric layer 4 is, for example, FbO-containing glass on the glass plate 3 parallel, strip-shaped discharge electrodes 6,7 applied by the dielectric Layer 4 are covered.
  • the discharge electrodes 6, 7 are made of metal or, for example ITO.
  • the carrier plate 2 is made of glass and on the carrier plate 2 are parallel, strip-shaped, Address electrodes 11 running perpendicular to the discharge electrodes 6, 7 for example Ag applied.
  • a phosphor layer 10 which in one of the three basic colors emitted red, green or blue, covered.
  • the individual plasma cells are by a rib structure 13 with separating ribs made of preferably dielectric material Cut.
  • a green color filter layer is between the dielectric layer 4 and the protective layer 5 8 applied.
  • a gas preferably a Noble gas mixture of, for example, He, Ne or Kr, with Xe as the UV light generating Component.
  • a plasma forms in the plasma area 9, through which depending on the Composition of the gas radiation 12 in the UV range, in particular in the VUV range, is produced.
  • This radiation 12 stimulates the phosphor layer 10 to light up, which emits visible light 14 in one of the three primary colors, through the front panel 1 steps outwards and thus represents a luminous pixel on the screen.
  • the dielectric layer 4 over the transparent discharge electrodes 6,7 serves below other with AC plasma screens, a direct discharge between the conductive Material existing discharge electrodes 6.7 and thus the formation of a To prevent the arc from igniting the discharge.
  • a front panel 1 with a green color filter layer 8 first of all on a glass plate 3, the size of which corresponds to the desired screen size, by means of Evaporation process and subsequent structuring of the discharge electrodes 6.7 upset. Then a dielectric layer 4 and on top of the dielectric Layer 4 applied the green color filter layer 8. Then the green Color filter layer 8 applied a protective layer 5.
  • a suitable pigment in water is used to produce the green color filter layer 8 dispersed with the addition of dispersing aids with a stirrer or a mill.
  • the suspension obtained is then ground in a ball mill with glass balls.
  • the ball mill is rotated on a roller bench at a speed that increases smooth rolling of the glass balls without a centrifugal effect the grinding efficiency is impaired.
  • a nonionic antifoam can be added to the suspension.
  • the suspension obtained is then filtered through a sieve.
  • Copper phthalocyanine or a derivative can be used as the pigment in the green color filter layer 8 copper phthalocyanine such as copper 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecachlor-29H, 31H-phthalocyanine, Copper-1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecabrom-29H, 31H-phthalocyanine or copper phthalocyanine derivatives of various types and numbers on halogen atoms at the substitutable positions of the four benzene rings become.
  • These organic pigments, especially copper phthalocyanine have one high color purity, are temperature stable, withstand the rigid process conditions when producing a plasma screen and have a high depending on the substitution Transmission between 520 and 550 nm.
  • the application and structuring of the green color filter layer 8 can be done by different means Procedure.
  • a photosensitive additive may contain polyvinyl alcohol and sodium dichromate.
  • the suspension is then homogenized by spraying, dipping or spin coating applied to the dielectric layer 4.
  • the "wet" film is, for example, by Heating, infrared radiation or microwave radiation dried.
  • the received Color filter layer is exposed through a mask and the exposed areas harden. The unexposed areas are rinsed off and sprayed off with water away.
  • Another possibility is the so-called "lift-off procedure” a photosensitive polymer layer is applied to the dielectric layer 4 and then exposed through a mask. Crosslink the exposed areas and the unexposed areas Areas are removed by a development step. On the rest Polymer pigment becomes the pigment suspension by spraying, dipping or spin coating separated and then dried. With a reactive solution such as For example, a strong acid, the cross-linked polymer is converted into a soluble form. By spraying with a developer liquid, the polymer together with it will be found Parts of the color filter layer peeled off, while those directly on the dielectric Layer 4 adhering color filter layer is not detached.
  • Another possibility for producing a green color filter layer 8 is the flexographic one Printing process. This is a high pressure process in which each only the areas of the dielectric layer 4 to be covered with the pressure roller come into contact.
  • the suspension of the green pigments directly by means of spin coating, spraying or dipping on the dielectric Layer 4 are applied.
  • the green color filter layer 8 obtained has a thickness between 0.2 and 3 ⁇ m.
  • the viscosity of the suspension can be adjusted the green pigment increased and a green color filter layer 8 with a layer thickness up to get 15 ⁇ m.
  • a protective layer 5 made of MgO is then applied to the green color filter layer 8.
  • the entire front plate 1 is dried and after-treated at 400 ° C. for two hours.
  • an additional red color filter layer is structured with respect to the areas of the phosphor layer 10 with red phosphor or an additional blue color filter layer is structured with respect to the areas of the phosphor layer 10 with blue phosphor or an additional red color filter layer is structured with respect to the areas of the phosphor layer 10 red phosphor and an additional blue color filter layer structured opposite the areas of the phosphor layer 10 with blue phosphor.
  • Fe 2 O 3 , TaON or CdS-CdSe can be used as pigments for a red color filter layer and, for example, CoO-Al 2 O 3 or Ultramarine can be used as pigments for a blue color filter layer.
  • These color filter layers are produced by one of the methods described for the production of the green color filter layer 8.
  • the finished front panel 1 is together with other components, such as a carrier plate 2 with address electrodes 11, which is covered by a phosphor layer 10 is, as well as with a rib structure 13 and a noble gas mixture, for producing a AC plasma screen used.
  • a carrier plate 2 with address electrodes 11 which is covered by a phosphor layer 10 is, as well as with a rib structure 13 and a noble gas mixture, for producing a AC plasma screen used.
  • a Tb 3+ -activated phosphor such as (Y x Gd 1-x ) BO 3 : Tb (0 ⁇ x ⁇ 1), LaPO 4 : Tb, (Y x Gd 1- x ) 3 Al 5 O 12 : Tb (0 ⁇ x ⁇ 1), CeMgAl 11 O 19 : Tb, GdMgB 5 O 10 : Ce, Tb, (Y x Gd 1-x ) 2 SiO 5 : Tb (0 ⁇ x ⁇ 1), (In x Gd 1-x ) BO 3 : Tb (0 ⁇ x ⁇ 1), Gd 2 O 2 S: Tb, LaOBr: Tb, LaOCl: Tb or LaPO 4 : Ce, Tb.
  • LaPO 4 : Ce, Tb is preferably used.
  • a green color filter layer 8 can be found in all types of plasma screens, as for example in AC plasma screens with or without matrix arrangement of the Electrode arrays or DC plasma screens can be used.
  • the color dots of YBO 3 : Tb and LaPO 4 : Ce, Tb are shown in FIG. 2 and FIG. 3 each with and without a green color filter. It becomes clear that the color point obtained depends not only on the substitution pattern of the copper phthalocyanine, but also on the layer thickness of the green color filter layer 8. 2 the color point 15 corresponds to the color point of YBO 3 : Tb without a color filter and the color points 16 to 19 correspond to the color point of YBO 3 : Tb with a green color filter. Assignment of the color points 16 to 19 of YBO 3 : Tb in FIG. 2.
  • color point 20 corresponds to the color point of LaPO 4 : Tb, Ce without a green color filter and color points 21 to 24 correspond to the color point of LaPO 4 : Tb, Ce with a green color filter.
  • Color point [No.] Pigment in a color filter layer Color filter layer thickness [um] 21 C 32 H 4 Br 10 Cl 2 N 8 Cu 0.5 22 C 32 H 2 Cl 14 N 8 Cu 0.5 23 C 32 H 4 Br 10 Cl 2 N 8 Cu 10 24th C 32 H 2 Cl 14 N 8 Cu 10
  • a front panel 1 with a green color filter layer 8 62.5 g of copper phthalocyanine were first stirred into a dispersant solution of 31.25 g of a pigment-affine dispersant in 530 g of water with vigorous stirring. The suspension obtained was mixed with 10 g of a 5% aqueous solution of a nonionic antifoam and ground in a ball mill with glass balls. The ball mill was filled so that the suspension just covered the glass beads and the rotation speed was adjusted to about 50 U min -1. After 2 days a stable, finely divided suspension was obtained, which was filtered through a sieve.
  • the suspension was mixed with a 10% polyvinyl alcohol solution and sodium dichromate was also added to the suspension.
  • the relationship Polyvinyl alcohol to sodium dichromate was 10: 1.
  • the suspension of the pigment was applied to the dielectric layer 4 of a front plate 1, which had a glass plate 3, a dielectric layer 4 and discharge electrodes 6, 7 by means of spin coating.
  • the dielectric layer 4 contained PbO-containing glass and the two discharge electrodes 6, 7 were made of ITO.
  • the layer was irradiated with UV light through a mask, thus crosslinking the polymer at the exposed areas.
  • the non-crosslinked color filter surfaces were then washed off by spraying with warm water.
  • the structuring of the green color filter layer 8 was such that the green color filter layer 8 was opposite the green phosphors in the phosphor layer 10.
  • a protective layer 5 made of MgO was then applied to the green color filter layer 8.
  • the entire front plate 1 was dried and after-treated at 400 ° C. for two hours.
  • the layer thickness of the green color filter layer 8 was 1.0 ⁇ m.
  • a suspension of the green-emitting phosphor LaPO 4 : Ce, Tb was also prepared, to which additives such as an organic binder and a dispersant were added.
  • the suspension was applied by means of screen printing on a carrier plate 2 made of glass with address electrodes 10 made of ITO and with a rib structure 13 and dried. This process step was carried out in succession for the other two types of fluorescent material with the emission colors blue and red. All organic additives remaining in the phosphor layer 10 were removed by thermal treatment of the carrier plate 2 at 400 to 600 ° C. in an oxygen-containing atmosphere.
  • the front plate 1 and the carrier plate 2 were then mixed with a gas mixture, which contained 7 vol.% Xe and 93 vol.% Ne to build an AC plasma screen used.
  • a front panel 1 with a green color filter layer 8 62.5 g of copper-1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecachlor- 29H, 31H-phthalocyanine are stirred into a dispersant solution of 31.25 g of a pigment-affine dispersant in 530 g of water with vigorous stirring.
  • the suspension obtained was mixed with 10 g of a 5% aqueous solution of a nonionic antifoam and ground in a ball mill with glass balls. The ball mill was filled so that the suspension just covered the glass beads and the rotation speed was adjusted to about 50 U min -1. After 2 days a stable, finely divided suspension was obtained, which was filtered through a sieve.
  • the suspension was mixed with a 10% polyvinyl alcohol solution and also sodium dichromate was added to the suspension.
  • the relationship Polyvinyl alcohol to sodium dichromate was 10: 1.
  • the suspension of the pigment on the dielectric layer 4 was spin-coated a front plate 1, which has a glass plate 3, a dielectric layer 4 and discharge electrodes 6.7, applied.
  • the dielectric layer 4 contained PbO-containing glass and the two discharge electrodes 6, 7 were made of ITO.
  • the layer was irradiated with UV light through a mask and the polymer was crosslinked at the exposed areas.
  • the non-crosslinked color filter surfaces were then washed off by spraying with warm water.
  • the structuring of the green color filter layer 8 was such that the green color filter layer 8 lies opposite the green phosphors in the phosphor layer 10.
  • an additional red color filter layer was structured in relation to the areas of the phosphor layer 10 with red phosphor and an additional blue color filter layer was structured in relation to the areas of the phosphor layer 10 with blue phosphor.
  • the red color filter layer contained Fe 2 O 3 and the blue color filter layer contained CoO-Al 2 O 3 .
  • a protective layer 5 made of MgO was applied to the color filter layers.
  • the entire front plate 1 was dried and after-treated at 400 ° C. for two hours.
  • the layer thickness of the green color filter layer 8 was 0.5 ⁇ m.
  • a suspension of the green-emitting phosphor YBO 3 : Tb was also prepared, to which additives such as an organic binder and a dispersant were added.
  • the suspension was applied by means of screen printing on a carrier plate 2 made of glass with address electrodes 10 made of ITO and with a rib structure 13 and dried. This process step was carried out in succession for the other two types of fluorescent material with the emission colors blue and red. All organic additives remaining in the phosphor layer 10 were removed by thermal treatment of the carrier plate 2 at 400 to 600 ° C. in an oxygen-containing atmosphere.
  • the front plate 1 and the carrier plate 2 were then mixed with a gas mixture, which had the composition 10% by volume Xe and 90% by volume Ne, to Construction of an AC plasma screen used.

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Luminescent Compositions (AREA)
  • Optical Filters (AREA)
EP01000145A 2000-05-19 2001-05-15 Ecran à plasma avec luminophore activé par du terbium(III) Expired - Lifetime EP1156507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024836 2000-05-19
DE10024836A DE10024836A1 (de) 2000-05-19 2000-05-19 Plasmabildschirm mit einem Terbium (III)-aktivierten Leuchtstoff

Publications (3)

Publication Number Publication Date
EP1156507A2 true EP1156507A2 (fr) 2001-11-21
EP1156507A3 EP1156507A3 (fr) 2004-09-15
EP1156507B1 EP1156507B1 (fr) 2009-04-08

Family

ID=7642801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01000145A Expired - Lifetime EP1156507B1 (fr) 2000-05-19 2001-05-15 Ecran à plasma avec luminophore activé par du terbium(III)

Country Status (7)

Country Link
US (1) US6573654B2 (fr)
EP (1) EP1156507B1 (fr)
JP (1) JP2002033055A (fr)
KR (1) KR20010105211A (fr)
CN (1) CN1242448C (fr)
DE (2) DE10024836A1 (fr)
TW (1) TWI230730B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003090246A2 (fr) * 2002-04-19 2003-10-30 Philips Intellectual Property & Standards Gmbh Panneau d'affichage a plasma comprenant une substance fluorescente activee par terbium(iii)
CN1319104C (zh) * 2001-11-28 2007-05-30 皇家飞利浦电子股份有限公司 包含绿色磷光体的等离子体显示屏

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100404988B1 (ko) * 2001-05-23 2003-11-07 엘지.필립스 엘시디 주식회사 콜레스테릭 액정 컬러필터 및 그의 제조 방법
TWI290329B (en) * 2001-10-30 2007-11-21 Hitachi Ltd Plasma display device, luminescent device and image and information display system using the same
KR100433223B1 (ko) * 2001-12-26 2004-05-27 엘지전자 주식회사 플라즈마 디스플레이 패널의 형광체 및 그 제조방법
US8198812B1 (en) 2002-05-21 2012-06-12 Imaging Systems Technology Gas filled detector shell with dipole antenna
US7405516B1 (en) 2004-04-26 2008-07-29 Imaging Systems Technology Plasma-shell PDP with organic luminescent substance
US8198811B1 (en) 2002-05-21 2012-06-12 Imaging Systems Technology Plasma-Disc PDP
US7727040B1 (en) 2002-05-21 2010-06-01 Imaging Systems Technology Process for manufacturing plasma-disc PDP
US6689293B2 (en) * 2002-05-31 2004-02-10 The Regents Of The University Of California Crystalline rare-earth activated oxyorthosilicate phosphor
US7772773B1 (en) 2003-11-13 2010-08-10 Imaging Systems Technology Electrode configurations for plasma-dome PDP
JPWO2005098890A1 (ja) * 2004-04-08 2008-03-06 松下電器産業株式会社 ガス放電表示パネル
US8339041B1 (en) 2004-04-26 2012-12-25 Imaging Systems Technology, Inc. Plasma-shell gas discharge device with combined organic and inorganic luminescent substances
US8129906B1 (en) 2004-04-26 2012-03-06 Imaging Systems Technology, Inc. Lumino-shells
US8368303B1 (en) 2004-06-21 2013-02-05 Imaging Systems Technology, Inc. Gas discharge device with electrical conductive bonding material
US8113898B1 (en) 2004-06-21 2012-02-14 Imaging Systems Technology, Inc. Gas discharge device with electrical conductive bonding material
US20060013944A1 (en) * 2004-07-14 2006-01-19 Teco Nanotech Co., Ltd. Developable phosphor coating mixture solution and method for manufacturing anodic phosphor layer
US8299696B1 (en) 2005-02-22 2012-10-30 Imaging Systems Technology Plasma-shell gas discharge device
US8618733B1 (en) 2006-01-26 2013-12-31 Imaging Systems Technology, Inc. Electrode configurations for plasma-shell gas discharge device
US7863815B1 (en) 2006-01-26 2011-01-04 Imaging Systems Technology Electrode configurations for plasma-disc PDP
US8035303B1 (en) 2006-02-16 2011-10-11 Imaging Systems Technology Electrode configurations for gas discharge device
US8278824B1 (en) 2006-02-16 2012-10-02 Imaging Systems Technology, Inc. Gas discharge electrode configurations
US7535175B1 (en) 2006-02-16 2009-05-19 Imaging Systems Technology Electrode configurations for plasma-dome PDP
US8410695B1 (en) 2006-02-16 2013-04-02 Imaging Systems Technology Gas discharge device incorporating gas-filled plasma-shell and method of manufacturing thereof
JP4931648B2 (ja) * 2007-03-09 2012-05-16 パナソニック株式会社 プラズマディスプレイパネル
US9013102B1 (en) 2009-05-23 2015-04-21 Imaging Systems Technology, Inc. Radiation detector with tiled substrates
TWI406928B (zh) * 2010-03-18 2013-09-01 Ind Tech Res Inst 藍光螢光材料、白光發光裝置、及太陽能電池
EP2607447B1 (fr) 2010-08-19 2016-07-27 Ocean's King Lighting Science&Technology Co., Ltd. Un procédé de préparation de matériaux luminescents à base de borate

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180477A (en) * 1977-01-19 1979-12-25 Johnson, Matthey & Co., Limited Luminescent materials
EP0531106A1 (fr) * 1991-09-05 1993-03-10 International Business Machines Corporation Filtre couleur pour affichage à cristaux liquides en couleur
JPH1074449A (ja) * 1996-09-02 1998-03-17 Dainippon Printing Co Ltd プラズマディスプレイパネル用カラーフィルターの形成方法
US5798059A (en) * 1995-12-09 1998-08-25 U.S. Philips Corporation Color display screen comprising a contrast-enhancing pigment
EP0861016A1 (fr) * 1997-02-21 1998-08-26 Idemitsu Kosan Co., Ltd. Dispositif d'affichage d'image
EP0884754A1 (fr) * 1996-12-17 1998-12-16 Toray Industries, Inc. Procede de fabrication d'ecran a plasma et dispositif correspondant
EP0915381A1 (fr) * 1997-11-12 1999-05-12 JSR Corporation Procédé de formation d'un motif sur un substrat
JPH11149874A (ja) * 1997-11-13 1999-06-02 Pioneer Electron Corp プラズマディスプレイパネル
US6004481A (en) * 1998-03-27 1999-12-21 Matsushita Electric Industrial Co., Ltd. Small particle terbium activated yttrium gadolinium borate phosphors and method of making

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008582A (en) * 1997-01-27 1999-12-28 Dai Nippon Printing Co., Ltd. Plasma display device with auxiliary partition walls, corrugated, tiered and pigmented walls
JP3570475B2 (ja) * 1997-11-26 2004-09-29 Ｊｓｒ株式会社 転写フィルムおよびそれを用いたプラズマディスプレイパネルの製造方法
DE10024835A1 (de) * 2000-05-19 2001-11-22 Philips Corp Intellectual Pty Plasmabildschirm mit einem Terbium (III)-aktivierten Leuchtstoff

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180477A (en) * 1977-01-19 1979-12-25 Johnson, Matthey & Co., Limited Luminescent materials
EP0531106A1 (fr) * 1991-09-05 1993-03-10 International Business Machines Corporation Filtre couleur pour affichage à cristaux liquides en couleur
US5798059A (en) * 1995-12-09 1998-08-25 U.S. Philips Corporation Color display screen comprising a contrast-enhancing pigment
JPH1074449A (ja) * 1996-09-02 1998-03-17 Dainippon Printing Co Ltd プラズマディスプレイパネル用カラーフィルターの形成方法
EP0884754A1 (fr) * 1996-12-17 1998-12-16 Toray Industries, Inc. Procede de fabrication d'ecran a plasma et dispositif correspondant
EP0861016A1 (fr) * 1997-02-21 1998-08-26 Idemitsu Kosan Co., Ltd. Dispositif d'affichage d'image
EP0915381A1 (fr) * 1997-11-12 1999-05-12 JSR Corporation Procédé de formation d'un motif sur un substrat
JPH11149874A (ja) * 1997-11-13 1999-06-02 Pioneer Electron Corp プラズマディスプレイパネル
US6004481A (en) * 1998-03-27 1999-12-21 Matsushita Electric Industrial Co., Ltd. Small particle terbium activated yttrium gadolinium borate phosphors and method of making

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1998, Nr. 08, 30. Juni 1998 (1998-06-30) -& JP 10 074449 A (DAINIPPON PRINTING CO LTD), 17. März 1998 (1998-03-17) *
PATENT ABSTRACTS OF JAPAN Bd. 1999, Nr. 11, 30. September 1999 (1999-09-30) -& JP 11 149874 A (PIONEER ELECTRON CORP), 2. Juni 1999 (1999-06-02) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1319104C (zh) * 2001-11-28 2007-05-30 皇家飞利浦电子股份有限公司 包含绿色磷光体的等离子体显示屏
WO2003090246A2 (fr) * 2002-04-19 2003-10-30 Philips Intellectual Property & Standards Gmbh Panneau d'affichage a plasma comprenant une substance fluorescente activee par terbium(iii)
WO2003090246A3 (fr) * 2002-04-19 2004-08-19 Philips Intellectual Property Panneau d'affichage a plasma comprenant une substance fluorescente activee par terbium(iii)

Also Published As

Publication number Publication date
TWI230730B (en) 2005-04-11
DE10024836A1 (de) 2001-11-22
US6573654B2 (en) 2003-06-03
KR20010105211A (ko) 2001-11-28
JP2002033055A (ja) 2002-01-31
US20020041156A1 (en) 2002-04-11
EP1156507B1 (fr) 2009-04-08
EP1156507A3 (fr) 2004-09-15
CN1242448C (zh) 2006-02-15
CN1325125A (zh) 2001-12-05
DE50114813D1 (de) 2009-05-20

Similar Documents

Publication Publication Date Title
EP1156507B1 (fr) Ecran à plasma avec luminophore activé par du terbium(III)
DE19534075C2 (de) Phosphor
DE69836837T2 (de) Plasma-Anzeigetafel und Herstellungsverfahren derselben
EP1078972B1 (fr) lampe fluorescente utilisée à des fins d'éclairage
DE60305371T2 (de) Plasmaanzeigegerät mit Kohlenstoff-Nanotubes und Verfahren zur Herstellung der Frontplatte des Plasmaanzeigegeräts
DE10009915A1 (de) Plasmabildschirm mit UV-Licht emittierender Schicht
DE19937420C1 (de) Plasmabildschirm mit Leuchtstoffzubereitung, Leuchtstoffzubereitung und Verfahren zu Herstellung einer Leuchtstoffzubereitung
EP1215698B1 (fr) Ecran à plasma avec une couche luminescente
DE60127142T2 (de) Plasmaschirm mit verbessertem Kontrast
EP1158559A2 (fr) Ecran à plasma avec luminophore activé par du terbium(III)
DE19962029A1 (de) Plasmabildschirm mit rotem Leuchtstoff
EP1130621A2 (fr) Panneau de visualisation à plasma avec luminophore bleu
EP1187167B1 (fr) Panneau d'affichage à couleurs avec couche luminescente bleue
DE60206963T2 (de) Verfahren zur sputterbeschichtung für elektrolumineszente phosphore
DE1512397A1 (de) Farbfernsehbildwiedergabeeinrichtung
DE60313312T2 (de) Plasmaanzeigetafel enthaltend eine terbium(iii)-aktivierte fluoreszierende substanz
EP1296348A2 (fr) Panneau d'affichage à plasma à efficacité accrue
EP1258902A2 (fr) Panneau d'affichage à plasma ayant un point de couleur blanche amélioré
EP1103591A1 (fr) Panneau de visualisation à plasma avec luminophore rouge
DE19727245A1 (de) Ein Doppelschicht-Leuchtstoff-Bildschirm und ein Verfahren zum Herstellen desselben
DE60316087T2 (de) Plasma-Anzeigetafel mit grünem Leuchtstoff aus Aluminatmischung mit Spinelstruktur
EP1229099A2 (fr) Panneau d'affichage à plasma avec couche luminescente
DE19938355A1 (de) Plasmabildschirm mit Reflexionsschicht
DE3004535C2 (de) Fluoreszierendes Material mit einem Gehalt an Indiumoxid
DE10215891A1 (de) Plasmabildschirm mit erhöhter Effizienz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Owner name: PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20050315

AKX Designation fees paid

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20050506

17Q First examination report despatched

Effective date: 20050506

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50114813

Country of ref document: DE

Date of ref document: 20090520

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090528

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090630

Year of fee payment: 9

Ref country code: DE

Payment date: 20090720

Year of fee payment: 9

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100111

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100515

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100515