US20020005509A1 - Dye combinations for image enhancement filters for color video displays - Google Patents

Dye combinations for image enhancement filters for color video displays Download PDF

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Publication number
US20020005509A1
US20020005509A1 US09/234,314 US23431499A US2002005509A1 US 20020005509 A1 US20020005509 A1 US 20020005509A1 US 23431499 A US23431499 A US 23431499A US 2002005509 A1 US2002005509 A1 US 2002005509A1
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US
United States
Prior art keywords
filter
dye
matrix
display device
color
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.)
Abandoned
Application number
US09/234,314
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English (en)
Inventor
Chia-Chi Teng
Suk Youn Suh
George Malinoski
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to US09/234,314 priority Critical patent/US20020005509A1/en
Priority to KR1020017009206A priority patent/KR100682780B1/ko
Priority to PCT/US2000/001349 priority patent/WO2000043814A1/en
Priority to JP2000595180A priority patent/JP2002540442A/ja
Priority to AT00902452T priority patent/ATE511114T1/de
Priority to EP20000902452 priority patent/EP1153322B1/de
Assigned to ASAHI GLASS COMPANY, LIMITED reassignment ASAHI GLASS COMPANY, LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUH, SUK YOUN, MALINOSKI, GEORGE, TENG, CHIA-CHI
Assigned to ASAHI GLASS COMPANY LTD. reassignment ASAHI GLASS COMPANY LTD. CHANGE OF CORPORATE ADDRESS Assignors: ASAHI GLASS COMPANY LTD.
Publication of US20020005509A1 publication Critical patent/US20020005509A1/en
Priority to US10/222,774 priority patent/US6989112B2/en
Priority to US11/218,588 priority patent/US20060001342A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • H01J29/898—Spectral filters
    • 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
    • H01J2211/44—Optical arrangements or shielding arrangements, e.g. filters or lenses
    • H01J2211/444—Means for improving contrast or colour purity, e.g. black matrix or light shielding means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]

Definitions

  • U.S. Pat. No. 4,989,953 referred to above advocates the use of colored filters for monochromatic displays.
  • a magenta colored filter is used for CRTs with green phosphors
  • a blue colored filter is used for amber colored CRTs.
  • this concept is not much useful for color displays because the blue filter, for example, will block out the red and/or green depending on the spectral characteristics of the filter.
  • Plasma display panels also known as gas display panels, have features such as a wide viewing angle, easy to see display because of self light emission, and a slim form. These advantages have encouraged increasing use of gas discharge display panels for high quality television sets.
  • the exact structure of the PDPs is not a feature of the present invention, and it is contemplated that the filters of this invention are useful for any color PDP regardless of the exact configuration. Those of ordinary skill in the art would be capable of using the inventive filter with any PDP device.
  • FIG. 3 is the absorbance spectrum of a dye set containing 0.40% ABS 574 and 0.53% ABS 594 in a polymethyl methylacrylate (PMMA) matrix.
  • FIG. 7 is the absorbance spectrum of a dye set containing 0.40% ABS 574 and 0.80% ABS 594 in a PMMA matrix in combination with 1.0% Astrazon Orange and 1.0% Luxol Fast Blue in a polyvinyl acetate (PVA) matrix.
  • PVA polyvinyl acetate
  • FIG. 8 is the chromaticity diagram of the dye set containing 0.40% ABS 574 and 0.80% ABS 594 in combination with 1.0% Astrazon Orange and 1.0% Luxol Fast Blue in a PVA matrix.
  • FIG. 9 discloses the absorbance spectrum of dye set containing 0.25% ABS 574 and 0.50% ABS 594 in a PMMA matrix in combination with Astrazon Orange 1.0% and Luxol Fast Blue 1.0% in a PVA matrix.
  • Absorption Bandwidth is within the range of 30-80 nm.
  • the dye combinations include at least one or more red dyes having the absorbance spectrums of FIGS. 1 or 2 as well as having the stability and solubility described above. Combinations of these particular red dyes with other colored dyes can be made to yield effective multiple bandpass filters for display devices such as CRTs and PDPs and the like.
  • the wavelength where the peak or peaks of the absorbance spectrum occur are unique and remain constant for a particular dye.
  • the location of the absorption peak is fixed once the dye and solvent system is selected. Thus, it is the location of the absorption peak or peaks which characterizes a dye or dye composition.
  • the present dye set increased the brightness from about 37% in Example 4 to about 56.9% and increased transmission in the blue region. Also the figure-of-merit improved significantly from the dye set of Example 4 from about 0.8 to about 0.96, while slightly compromising the improvement of green color purity. Color temperature was improved, about 1,000° K relative to the PDP without a filter. The relative contrast was about 1.69.
  • the dye set was composed of about 0.12% by weight of Astrazon Orange, about 0.18% by weight of ABS 574, about 0.32% by weight of ABS 574, about 0.32% by weight of ABS 594, and about 0.38% by weight of Luxol Fast Blue in a polymethyl methacrylate polymer matrix.
  • the solvent employed was a mixture of 80% methyl ethylketone and 20% dimethylfuran.
  • the dye set was spun-coated into a 7 micron film on PET.
  • FIG. 17 illustrates the absorbance spectrum of the present dye set.
  • FIG. 18 illustrates the chromaticity diagram showing improved color contrast in the red, green, and blue wavelengths over a plasma display panel without the filter.
  • the present dye set showed an improved color temperature of about +15,000° K, an improved relative brightness of about 62.2% with a relative contrast of about 1.523, a good figure-of-merit of about 0.95, see Table 2, and also an improved blue transmission of about 73%.
  • the ⁇ E of the red, green, and blue coordinates was about 28.8, 16.0, and 9.6, respectively.
  • an observer can completely distinguish the red and green colors of the plasma display with the filter over the plasma display panel without the filter, and can at least conclude that there is an obvious difference between the blue of the plasma display panel with the filter over the panel with the filter.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Optical Filters (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Gas-Filled Discharge Tubes (AREA)
US09/234,314 1999-01-21 1999-01-21 Dye combinations for image enhancement filters for color video displays Abandoned US20020005509A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US09/234,314 US20020005509A1 (en) 1999-01-21 1999-01-21 Dye combinations for image enhancement filters for color video displays
EP20000902452 EP1153322B1 (de) 1999-01-21 2000-01-21 Farbstoffkombinationen fur bildverbesserungsfilter fur videoanzeigen
PCT/US2000/001349 WO2000043814A1 (en) 1999-01-21 2000-01-21 Dye combinations for image enhancement filters for color video displays
JP2000595180A JP2002540442A (ja) 1999-01-21 2000-01-21 カラー映像ディスプレイの画質向上フィルタ用染料組合わせ
AT00902452T ATE511114T1 (de) 1999-01-21 2000-01-21 Farbstoffkombinationen fur bildverbesserungsfilter fur videoanzeigen
KR1020017009206A KR100682780B1 (ko) 1999-01-21 2000-01-21 컬러 비디오 디스플레이용 이미지 개선 필터를 위한 염료화합물
US10/222,774 US6989112B2 (en) 1999-01-21 2002-08-19 Dye combinations for image enhancement filters for color video displays
US11/218,588 US20060001342A1 (en) 1999-01-21 2005-09-06 Dye combinations for image enhancement filters for color video displays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/234,314 US20020005509A1 (en) 1999-01-21 1999-01-21 Dye combinations for image enhancement filters for color video displays

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/222,774 Continuation US6989112B2 (en) 1999-01-21 2002-08-19 Dye combinations for image enhancement filters for color video displays

Publications (1)

Publication Number Publication Date
US20020005509A1 true US20020005509A1 (en) 2002-01-17

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Family Applications (3)

Application Number Title Priority Date Filing Date
US09/234,314 Abandoned US20020005509A1 (en) 1999-01-21 1999-01-21 Dye combinations for image enhancement filters for color video displays
US10/222,774 Expired - Fee Related US6989112B2 (en) 1999-01-21 2002-08-19 Dye combinations for image enhancement filters for color video displays
US11/218,588 Abandoned US20060001342A1 (en) 1999-01-21 2005-09-06 Dye combinations for image enhancement filters for color video displays

Family Applications After (2)

Application Number Title Priority Date Filing Date
US10/222,774 Expired - Fee Related US6989112B2 (en) 1999-01-21 2002-08-19 Dye combinations for image enhancement filters for color video displays
US11/218,588 Abandoned US20060001342A1 (en) 1999-01-21 2005-09-06 Dye combinations for image enhancement filters for color video displays

Country Status (6)

Country Link
US (3) US20020005509A1 (de)
EP (1) EP1153322B1 (de)
JP (1) JP2002540442A (de)
KR (1) KR100682780B1 (de)
AT (1) ATE511114T1 (de)
WO (1) WO2000043814A1 (de)

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US6532120B1 (en) * 1998-10-20 2003-03-11 Fuji Photo Film Co., Ltd. Optical filter
US20060001342A1 (en) * 1999-01-21 2006-01-05 Asahi Glass Company, Ltd. Dye combinations for image enhancement filters for color video displays
US20050094275A1 (en) * 1999-06-17 2005-05-05 Fuji Photo Film Co., Ltd. Optical filter
US7357981B2 (en) * 1999-06-17 2008-04-15 Fujifilm Corporation Optical filter
US6515811B2 (en) * 2000-01-13 2003-02-04 Fuji Photo Film Co., Ltd. Optical filter having two absorption maximums
US6597525B2 (en) * 2000-09-29 2003-07-22 Fuji Photo Film Co., Ltd. Optical filter and image display
FR2839184A1 (fr) * 2002-04-30 2003-10-31 Johnson Contr Automotive Elect Capot pour ecran cathodo-luminescent
WO2004106994A2 (en) * 2003-05-28 2004-12-09 Solutia Incorporated Plasma display panel filters comprising multiple layers
WO2004106994A3 (en) * 2003-05-28 2005-06-23 Solutia Inc Plasma display panel filters comprising multiple layers
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US20040239251A1 (en) * 2003-05-28 2004-12-02 D'haene Pol Plasma display panel filters
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WO2000043814A1 (en) 2000-07-27
JP2002540442A (ja) 2002-11-26
US20030015692A1 (en) 2003-01-23
KR20010102989A (ko) 2001-11-17
US6989112B2 (en) 2006-01-24
ATE511114T1 (de) 2011-06-15
EP1153322A4 (de) 2002-06-19
US20060001342A1 (en) 2006-01-05
EP1153322B1 (de) 2011-05-25
KR100682780B1 (ko) 2007-02-15
EP1153322A1 (de) 2001-11-14

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