EP0258831B1 - Vorsatzaggegrat für die Kathodenstrahlröhre von Monitoren, Fernsehapparaten und dergleichen - Google Patents

Vorsatzaggegrat für die Kathodenstrahlröhre von Monitoren, Fernsehapparaten und dergleichen Download PDF

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Publication number
EP0258831B1
EP0258831B1 EP87112513A EP87112513A EP0258831B1 EP 0258831 B1 EP0258831 B1 EP 0258831B1 EP 87112513 A EP87112513 A EP 87112513A EP 87112513 A EP87112513 A EP 87112513A EP 0258831 B1 EP0258831 B1 EP 0258831B1
Authority
EP
European Patent Office
Prior art keywords
glass
absorption coating
attachment unit
monitors
light transmission
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.)
Expired - Lifetime
Application number
EP87112513A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0258831A2 (de
EP0258831A3 (en
Inventor
Dieter Müller
Wilhelm Rein
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.)
Flabeg GmbH and Co KG
Original Assignee
Flachglas Wernberg GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6308836&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0258831(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Flachglas Wernberg GmbH filed Critical Flachglas Wernberg GmbH
Priority to AT87112513T priority Critical patent/ATE75357T1/de
Publication of EP0258831A2 publication Critical patent/EP0258831A2/de
Publication of EP0258831A3 publication Critical patent/EP0258831A3/de
Application granted granted Critical
Publication of EP0258831B1 publication Critical patent/EP0258831B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/8913—Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
    • H01J2229/8916—Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices inside the vessel

Definitions

  • the invention relates generically to an attachment for the cathode ray tube of monitors, television sets and the like, - consisting of a glass pane, in particular a gray glass pane, a front-side anti-reflection equipment and a rear-side absorption coating, the absorption coating having metal atoms.
  • the front anti-reflection equipment is largely arbitrary. You can e.g. B. as a multi-layer coating of substances such as Al2O3, Ta2O5, SiO2, SnO2, TiO2, CeF3, ZrO2, MgF2, z. B. two-layer or three-layer, alternating high refractive index or low refractive index.
  • glass pane includes those made of inorganic glass, in particular tempered safety glass, and made of plastic.
  • Such attachment units are used in front of the so-called fluorescent screen of the cathode ray tube, which is also referred to as a display device in particular in monitors, and are combined with it.
  • the absorption coating has two layers. It consists of a metal layer, which can be made up of, among other things, chrome or a chrome alloy, but does not necessarily consist of these materials, and a dielectric layer.
  • the metal layer has a complex refractive index in which the quotient of the imaginary part and the real part is in the range between 0.7 to 3.0.
  • the dielectric layer has a refractive index in the range of 1.35 to 1.70.
  • the invention has for its object to improve the contrast effect and bring about a further reduction in reflection in a front unit of the construction described, with sufficient corrosion resistance.
  • the teaching of the invention leads to surprising effects: If the absorption layer made of the substances mentioned has a thickness that reduces the light transmission compared to the uncoated glass pane (regardless of the original light transmittance) by not less than the contrast effect, but also that Anti-reflective coating improved.
  • the anti-reflective coating is fundamentally determined by the fact that anti-reflection equipment is provided on the front, the anti-reflective coating which is achieved by combination with the absorption coating according to the invention is more effective and color-neutral. Any ultraviolet rays that occur are attenuated. Also disturbances, which in the known embodiment relate to static charging based on the absorption coating, do not occur.
  • the conductive absorption coating on the rear side in addition to an anti-reflective coating in the visible spectral range, also achieves a noticeable reduction in light transmission, so that a considerably improved attenuation of the light reflections occurring on the non-anti-reflective image surface is achieved. Due to the proposed coating material and the selected layer thickness, the rear absorption coating acts as a color-neutral anti-reflective coating in the visible spectral range with sufficient conductivity to dissipate electrostatic charges by grounding the absorption coating. This prevents soiling of the screen surface caused by electrostatic charging and the associated reduction in image sharpness. Another advantage is the protection of electronic components from the static shock.
  • the glass pane of the attachment according to the invention is also sufficiently corrosion-resistant under the usual environmental influences.
  • the rear glass surface was then coated in a magnetron sputtering system with an absorption coating made of Cr, so that the light transmission was reduced to 40% and a conductivity was established which could be assigned to a sheet resistance of 1 kilohm. Then the transmittance and the reflectance were measured again.
  • FIG. 1 shows the transmittance (%)
  • FIG. 2 shows the reflectance (%), in each case over the wavelength.
  • the solid curves show the measured values of the glass pane provided only with the anti-reflection coating
  • the dashed curves represent the measured values of the glass pane additionally provided with the absorption coating. The improvement achieved is evident. In addition, there was a considerable improvement in the contrast effect.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Surface Treatment Of Optical Elements (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Details Of Television Scanning (AREA)
EP87112513A 1986-09-03 1987-08-28 Vorsatzaggegrat für die Kathodenstrahlröhre von Monitoren, Fernsehapparaten und dergleichen Expired - Lifetime EP0258831B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112513T ATE75357T1 (de) 1986-09-03 1987-08-28 Vorsatzaggegrat fuer die kathodenstrahlroehre von monitoren, fernsehapparaten und dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3629996 1986-09-03
DE19863629996 DE3629996A1 (de) 1986-09-03 1986-09-03 Vorsatzaggregat fuer die kathodenstrahlroehre von monitoren, fernsehapparaten und dergleichen

Publications (3)

Publication Number Publication Date
EP0258831A2 EP0258831A2 (de) 1988-03-09
EP0258831A3 EP0258831A3 (en) 1988-12-28
EP0258831B1 true EP0258831B1 (de) 1992-04-22

Family

ID=6308836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112513A Expired - Lifetime EP0258831B1 (de) 1986-09-03 1987-08-28 Vorsatzaggegrat für die Kathodenstrahlröhre von Monitoren, Fernsehapparaten und dergleichen

Country Status (6)

Country Link
US (1) US4804883A (da)
EP (1) EP0258831B1 (da)
AT (1) ATE75357T1 (da)
DE (2) DE3629996A1 (da)
DK (1) DK168873B1 (da)
ES (1) ES2031099T3 (da)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643088A1 (de) * 1986-12-17 1988-06-30 Flabeg Gmbh Fernseh-bildroehre mit verbundfrontscheibe
JP2804049B2 (ja) * 1988-09-19 1998-09-24 株式会社日立製作所 陰極線管
US5051652A (en) * 1988-12-06 1991-09-24 Asahi Glass Company, Ltd. Panel with anti-reflective multi-layered film thereon
DE3918859A1 (de) * 1989-06-09 1990-12-13 Balzers Gmbh Deutsche Reflexmindernde breitbandig absorbierende elektrisch leitende beschichtung fuer optische traeger
DE3941797A1 (de) * 1989-12-19 1991-06-20 Leybold Ag Belag, bestehend aus einem optisch wirkenden schichtsystem, fuer substrate, wobei das schichtsystem insbesondere eine hohe antireflexwirkung aufweist, und verfahren zur herstellung des belags
US5170291A (en) * 1989-12-19 1992-12-08 Leybold Aktiengesellschaft Coating, composed of an optically effective layer system, for substrates, whereby the layer system has a high anti-reflective effect, and method for manufacturing the coating
DE4018399A1 (de) * 1990-06-08 1991-12-19 Leybold Ag Verfahren zur beschichtung eines substrats, insbesondere einer glasscheibe, um eine opakwirkung zu erzielen und durch das verfahren beschichtete substrate
FR2663486B1 (fr) * 1990-06-15 1997-01-24 Thomson Consumer Electronics Dispositif de visualisation ou de projection d'images ou analogues.
KR940011569B1 (ko) * 1990-10-24 1994-12-21 미쯔비시덴끼 가부시끼가이샤 저 반사막을 갖는 음극선관
KR950014541B1 (ko) * 1991-05-24 1995-12-05 미쯔비시덴끼 가부시끼가이샤 광선택흡수층 또는 뉴트럴 필터층을 갖는 컬러음극선관
DE4130930A1 (de) * 1991-09-13 1993-03-25 Flachglas Ag Vorsatzaggregat fuer bildschirme oder dergleichen
JPH05341167A (ja) * 1992-06-08 1993-12-24 Matsushita Electric Ind Co Ltd レンズ保持部材と薄膜形成方法
JP2981528B2 (ja) * 1992-12-25 1999-11-22 三菱電機株式会社 陰極線管およびその製造方法
US5521759A (en) * 1993-06-07 1996-05-28 National Research Council Of Canada Optical filters for suppressing unwanted reflections
DE69503598T2 (de) * 1994-08-08 1999-03-04 Philips Electronics N.V., Eindhoven Einen mit einer elektrisch leitfähigen schicht versehenen bildschirm enthaltende kathodenstrahlröhre
DE19501640C2 (de) * 1995-01-20 1999-07-01 Schott Glas Recyclierbare Bildschirme für Kathodenstrahlröhren mit einem einstellbaren spektralen Transmissionsverlauf aus Glas und Verfahren zu ihrer Herstellung
JP3520627B2 (ja) * 1995-09-14 2004-04-19 ソニー株式会社 光反射防止部材及びその作製方法、並びに陰極線管
JP3351236B2 (ja) * 1995-12-08 2002-11-25 松下電器産業株式会社 透過型スクリーンの製造方法
US6325901B1 (en) 1996-04-18 2001-12-04 Kabushiki Kaisha Toshiba Method of producing a cathode-ray tube and apparatus therefor
DE19622511A1 (de) * 1996-06-05 1997-12-11 Otto Breitenbach Bildschirmfilter-System mittels getönter Glas- oder Kunststoffscheibe mit Glashaltewinkel und Haftklotz
DE19634576C1 (de) * 1996-08-27 1997-09-18 Deutsche Spezialglas Ag Vorsatzfilter für selbstleuchtende Bildschirme
WO1998020389A1 (en) * 1996-11-08 1998-05-14 Optical Coating Laboratory, Inc. Coated flexible glass films for visual display units
TW392189B (en) * 1997-01-17 2000-06-01 Koninkl Philips Electronics Nv Method of manufacturing a cathode ray tube and a cathode ray tube
KR100346422B1 (ko) * 1998-08-26 2002-08-01 엘지전자주식회사 비반사 항정전기 필름
US6144479A (en) * 1998-12-16 2000-11-07 3M Innovative Properties Company Low reflectivity contrast enhancement filter
KR100346547B1 (ko) 1999-11-26 2002-07-26 삼성에스디아이 주식회사 화상 표시장치
DE10103088A1 (de) * 2001-01-24 2002-08-01 Schott Desag Ag Vorsatzscheibe für einen Bildschirm
US20030179455A1 (en) * 2002-03-22 2003-09-25 Jeffrey Hunt Fingerprint resistant anti-reflection coatings for plastic substrates
US10266420B2 (en) * 2015-04-23 2019-04-23 University Of Florida Research Foundation, Inc Method for the generation of power
CN111879799B (zh) * 2020-07-03 2022-08-26 中国兵器科学研究院宁波分院 一种光学系统空间分辨率的手动测试方法

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US2734142A (en) * 1956-02-07 Cathode ray tubes
BE513715A (da) * 1951-08-25
US3504212A (en) * 1967-03-20 1970-03-31 Westinghouse Electric Corp High contrast display device incorporating a light absorption and scattering layer
BE789249A (fr) * 1971-09-27 1973-01-15 Rca Corp Perfectionnements aux tubes a rayons cathodiques
JPS5542371Y2 (da) * 1972-08-24 1980-10-03
US3879627A (en) * 1974-03-25 1975-04-22 Raytheon Co Display tube with neutral density filtration
JPS5521264Y2 (da) * 1974-12-17 1980-05-22
US4253737A (en) * 1979-02-12 1981-03-03 Sun-Flex Company Anti-Glare device for a computer terminal display tube
US4310783A (en) * 1979-05-07 1982-01-12 Temple Michael D Cathode ray tube face plate construction for suppressing the halo having a low reflection and method
EP0024876B1 (en) * 1979-08-21 1984-02-15 Matsushita Electric Industrial Co., Ltd. Semiconductor stripe filter
US4540914A (en) * 1982-12-17 1985-09-10 Lockheed Missiles & Space Company, Inc. Absorbing graded nitride film for high contrast display devices
JPS59169042A (ja) * 1983-03-14 1984-09-22 スペリ−・コ−ポレイシヨン 陰極線管表示装置用フイルタおよびその製法および表示面への取付法
JPS60260002A (ja) * 1984-06-06 1985-12-23 Nec Corp 減光素子
US4563612A (en) * 1984-06-25 1986-01-07 Rca Corporation Cathode-ray tube having antistatic silicate glare-reducing coating
US4663562A (en) * 1984-07-16 1987-05-05 General Electric Company Contrast enhancement structure for color cathode ray tube
US4633131A (en) * 1984-12-12 1986-12-30 North American Philips Corporation Halo-reducing faceplate arrangement

Also Published As

Publication number Publication date
EP0258831A2 (de) 1988-03-09
DK168873B1 (da) 1994-06-27
DE3778457D1 (de) 1992-05-27
ATE75357T1 (de) 1992-05-15
EP0258831A3 (en) 1988-12-28
DE3629996C2 (da) 1991-07-18
DK457387A (da) 1988-03-04
ES2031099T3 (es) 1992-12-01
DE3629996A1 (de) 1988-03-17
DK457387D0 (da) 1987-09-02
US4804883A (en) 1989-02-14

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