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EP1209715A2 - Panneau avant pour la protection d'un écran plat d'affichage à plasma - Google Patents

Panneau avant pour la protection d'un écran plat d'affichage à plasma Download PDF

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Publication number
EP1209715A2
EP1209715A2 EP01126929A EP01126929A EP1209715A2 EP 1209715 A2 EP1209715 A2 EP 1209715A2 EP 01126929 A EP01126929 A EP 01126929A EP 01126929 A EP01126929 A EP 01126929A EP 1209715 A2 EP1209715 A2 EP 1209715A2
Authority
EP
European Patent Office
Prior art keywords
lenses
screen
matrix
cover plate
plasma
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.)
Withdrawn
Application number
EP01126929A
Other languages
German (de)
English (en)
Other versions
EP1209715A3 (fr
Inventor
Udo Fischbeck
Markus Friebe
Juergen Proell
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.)
Grundig Multimedia BV
Original Assignee
Grundig AG
Grundig Multimedia BV
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 Grundig AG, Grundig Multimedia BV filed Critical Grundig AG
Publication of EP1209715A2 publication Critical patent/EP1209715A2/fr
Publication of EP1209715A3 publication Critical patent/EP1209715A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • H01J2211/446—Electromagnetic shielding means; Antistatic means

Definitions

  • the invention relates to a windshield according to the preamble of Claim 1.
  • Plasma flatscreens have a higher light intensity Generation of the pixels noble gas-filled devices are provided.
  • the Devices radiate colored, caused by UV discharges in the plasma Light that is generated by the associated phosphors.
  • PDP is usually provided with a front screen, which is a means of shielding contains. It can e.g. around one worked into the windscreen Act wire mesh. The wire mesh is sometimes in operation of the PDP visible. It disturbs the picture impression.
  • the object of the invention is to overcome the disadvantages of the prior art remove.
  • it is intended to be a front screen for a flat screen or a flat screen with improved shielding and image quality become.
  • At least one side of the Front window has a lens matrix formed from convex lenses.
  • the opposite sides of the windshield can each one Have lens matrix formed from convex lenses, so that one from biconvex Lenses existing lens matrix is formed.
  • This can reduce the picture quality a flat screen provided with the windscreen according to the invention, especially a plasma flat screen, again improved become.
  • the lenses expediently have a substantially rectangular shape Outline on, whereby they can be arranged so that their outline in the essentially with the grid-like electrically conductive structure.
  • the lenses can be curved in cross section. But you can also use the Have the shape of a pyramid. Through the proposed training and Arranging the lenses will make the optical impairments special kept low.
  • the grid-like electrically conductive structure can, preferably from in the Windshield embedded, wires are formed. But it can also e.g. made from printed conductors printed on the side of the windscreen his.
  • the windshield according to the invention is attached over a cover plate of a plasma flat screen. It can is a plasma flat screen known per se.
  • the cover plate expediently covers one of a large number of plasma-filled ones Devices for generating colored light pixel matrix from and the grid-like structure of the windshield is expedient arranged so that it essentially coincides with the pixel matrix. That the lattice-like structure is arranged so that it matches the outline of the plasma-filled devices.
  • the lens matrix is advantageously arranged in relation to the pixel matrix in such a way that that light passing through the windshield is so scattered is that the grid-like structure when operating the plasma flat screen in significantly outshone and is therefore no longer visible.
  • the windshield is in one Piece made with the cover plate.
  • training expediently a convex lens matrix on that facing away from the devices Provided outside.
  • the inside facing the devices the one-piece front and cover plate can be flat and be tightly connected to the devices.
  • the front and cover glass are made in one piece as a biconvex lens matrix is. In this case, the convex lenses bulge into the devices.
  • reference numeral 1 generally denotes a pixel matrix designated.
  • the pixel matrix 1 is formed from a multiplicity of grid-like ones Devices 2 for generating colored light, namely from red, green and blue light. The picture is created by subtractive color mixing of the colored light emitted by the devices 2.
  • the devices 2 are in columns S1, S2 and S3 arranged side by side.
  • Each column S1, S2 or S3 consists of devices 2, which each produce light of the same color.
  • the devices 2 are arranged behind a cover plate 3 which e.g. made of glass can be.
  • a cover plate 4 is superimposed on the cover plate 3.
  • the front plate 4 can e.g. be attached to the cover plate 3 by means of an adhesive.
  • a wire mesh 5 embedded in the Windscreen 4
  • suitable electrically conductive structures can be provided.
  • it can a lattice-like structure in the form of conductor tracks can be provided, which on an underside of the front pane facing the cover pane 3 4 are applied. As can be seen from FIGS. 1 and 3, this coincides Wire mesh 5 with the outlines of the devices 2.
  • the front screen has 4 on their outer side facing away from the cover plate 3 a large number convex lenses 6.
  • the convex lenses 6 have - as from FIGS. 2 and 4 can be seen - an essentially square outline.
  • the essentially square outline of the convex lenses 6 coincides with that Wire mesh 5.
  • the front screen has 4 biconvex lenses 7, the outline of which is also essentially is square.
  • the outline of the biconvex lenses coincides 7 with the wire mesh 5.
  • the lenses are each arc-shaped educated.
  • the cover plate 3 is flat in the exemplary embodiments described educated. However, it may also be that the cover plate 3 and e.g. the Front screen 4 shown in Fig. 1 are made in one piece. With regard on a one-piece design of the cover 3 and the front screen 4 it is also possible, the one shown in FIG. 3 in the form of a biconvex lens matrix trained front panel 4 to connect tightly with the devices 2. In this case, the biconvex lenses 7 bulge into the devices 2 into it (not shown here).
  • the one-piece design of the cover 3 with the front window 4 simplifies the manufacture of the plasma flat screen.
  • the manufacture of the windshield 4 according to the invention or the cover 3 with The windshield 4 is made in one piece according to common methods.
  • the lens matrix can be in the viscous state of the glass using suitable tools be imprinted. It is also possible by means of a stick-like Tool-like recesses in the viscose glass so that so that lens-like structures are created. It is also conceivable that to provide a corrugation for the wires used to manufacture the grid. When the wires are inserted into the viscose glass, their curl causes the formation a lens matrix.
  • the function of the windshield 4 according to the invention is as follows.
  • the colored light emitted by the devices 2 is by the convex 6 or deflected by the biconvex lenses 7 such that the wire mesh 5 is outshone on the light exit side. That scattered over the wire mesh 5 Subtractive color mixing then turns light into the real thing Image implemented.
  • the windshield 4 according to the invention is particularly suitable for shielding known PDPs. However, it is also conceivable for such a windshield 4 to use for flat screens, the pixels on others Generated way.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP01126929A 2000-11-21 2001-11-13 Panneau avant pour la protection d'un écran plat d'affichage à plasma Withdrawn EP1209715A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057687 2000-11-21
DE2000157687 DE10057687A1 (de) 2000-11-21 2000-11-21 Frontscheibe zur Abschirmung eines Plasma-Flachbildschirms

Publications (2)

Publication Number Publication Date
EP1209715A2 true EP1209715A2 (fr) 2002-05-29
EP1209715A3 EP1209715A3 (fr) 2006-08-30

Family

ID=7664075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01126929A Withdrawn EP1209715A3 (fr) 2000-11-21 2001-11-13 Panneau avant pour la protection d'un écran plat d'affichage à plasma

Country Status (2)

Country Link
EP (1) EP1209715A3 (fr)
DE (1) DE10057687A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655759A2 (fr) * 2004-11-09 2006-05-10 LG Electronics Inc. Filtre avant d'un écran et son méthode de fabrication
EP1670024A2 (fr) * 2004-12-09 2006-06-14 LG Electronic Inc. Appareil d' affichage à plasma avec un filtre
CN106129260A (zh) * 2016-06-30 2016-11-16 京东方科技集团股份有限公司 一种显示面板及显示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345046B4 (de) * 2003-09-26 2009-12-24 Continental Automotive Gmbh Anzeige mit einem Lichtfilter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623881A1 (de) * 1996-06-05 1997-12-11 Hertz Inst Heinrich Elektrolumineszenzdisplay
JPH10282309A (ja) * 1997-04-04 1998-10-23 Toppan Printing Co Ltd 電磁シールド機能を有するレンズシートとその製造方法
EP0991101A2 (fr) * 1998-09-30 2000-04-05 Mitsubishi Denki Kabushiki Kaisha Panneau d'affichage et procédé de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623881A1 (de) * 1996-06-05 1997-12-11 Hertz Inst Heinrich Elektrolumineszenzdisplay
JPH10282309A (ja) * 1997-04-04 1998-10-23 Toppan Printing Co Ltd 電磁シールド機能を有するレンズシートとその製造方法
EP0991101A2 (fr) * 1998-09-30 2000-04-05 Mitsubishi Denki Kabushiki Kaisha Panneau d'affichage et procédé de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1999, Nr. 01, 29. Januar 1999 (1999-01-29) -& JP 10 282309 A (TOPPAN PRINTING CO LTD), 23. Oktober 1998 (1998-10-23) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655759A2 (fr) * 2004-11-09 2006-05-10 LG Electronics Inc. Filtre avant d'un écran et son méthode de fabrication
EP1655759A3 (fr) * 2004-11-09 2008-04-09 LG Electronics Inc. Filtre avant d'un écran et son méthode de fabrication
EP1670024A2 (fr) * 2004-12-09 2006-06-14 LG Electronic Inc. Appareil d' affichage à plasma avec un filtre
EP1670024A3 (fr) * 2004-12-09 2009-05-27 LG Electronic Inc. Appareil d' affichage à plasma avec un filtre
CN106129260A (zh) * 2016-06-30 2016-11-16 京东方科技集团股份有限公司 一种显示面板及显示装置
CN106129260B (zh) * 2016-06-30 2019-03-19 京东方科技集团股份有限公司 一种显示面板及显示装置

Also Published As

Publication number Publication date
EP1209715A3 (fr) 2006-08-30
DE10057687A1 (de) 2002-05-23

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