EP0360627B1 - Dalle pour écran de tube de télévision en couleurs - Google Patents

Dalle pour écran de tube de télévision en couleurs Download PDF

Info

Publication number
EP0360627B1
EP0360627B1 EP89401837A EP89401837A EP0360627B1 EP 0360627 B1 EP0360627 B1 EP 0360627B1 EP 89401837 A EP89401837 A EP 89401837A EP 89401837 A EP89401837 A EP 89401837A EP 0360627 B1 EP0360627 B1 EP 0360627B1
Authority
EP
European Patent Office
Prior art keywords
screen
coefficients
ratio
envelope
diagonal
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
EP89401837A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0360627A1 (fr
Inventor
Giuliano Canevazzi
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.)
Thomson Tubes and Displays SA
Original Assignee
Thomson Tubes and Displays SA
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 Thomson Tubes and Displays SA filed Critical Thomson Tubes and Displays SA
Publication of EP0360627A1 publication Critical patent/EP0360627A1/fr
Application granted granted Critical
Publication of EP0360627B1 publication Critical patent/EP0360627B1/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
    • 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
    • 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
    • H01J29/861—Vessels or containers characterised by the form or the structure thereof
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/86—Vessels and containers
    • H01J2229/8613—Faceplates
    • H01J2229/8616—Faceplates characterised by shape
    • H01J2229/862—Parameterised shape, e.g. expression, relationship or equation

Definitions

  • the present invention relates to a screen for a three-color television tube. It finds application for the reception of television broadcasts in high definition. (HDTV)
  • the present invention firstly relates to the production of a screen, for high-definition television, of a trichromatic tube with a "wide" screen (of 16/9 ratio) but which can also have the standard 4/3 ratio, of which the screen is as flat as possible and requires the least possible correction of geometry, slab which allows to realize a very wide range of tubes of very different dimensions and flatnesses and this, in the simplest way possible without using cylindrical element in the slab insolation light box.
  • the present invention also relates to a panel for a three-color television tube for high-definition television, in particular with a "wide” screen whose coefficient called “screen pitch” or screen ruler is as constant as possible, the edges of the screen being as straight as possible, the geometrical characteristics of the screen making the linearity of the phosphor lines optimal without using a cylindrical element in the insolation light box of the slab, the performance of the tube being optimized on the coefficients of "doming", of "blister", of microphonicity and on the tolerance of color purity.
  • EP-A-0 283 129 shows the common characteristics of a cathode ray tube comprising a surface of the rectangular plate where a long edge of the surface of the plate is substantially parallel to the long axis of the tube and a short edge of the surface of the plate is substantially parallel to the minor axis of the tube, the surface of the plate having a non-spherical external surface having curvatures both along the minor axis and the major axis and where the external surface comprises a substantially rectangular outline near the periphery of the surface of the plate which lies substantially in a plane perpendicular to the longitudinal central axis of the tube.
  • any surface (S1) is said to belong to the family (S) according to the invention if the difference Z1-Z of their respective equations taken at the center of the screens is: 100.ABS (Z1-Z) ⁇ 5. Zd where Zd is the maximum value of Z on the long diagonal of the slab.
  • the manufacture of color television tubes poses a large number of problems which interact with each other.
  • the problem of glassware that is to say the problem which tends to the production of glass slabs on which a display screen is intended to be produced, implements questions of physics of electromagnetic and optical deflectors electronics at the level of the electron gun, but also mechanical questions linked to the presence of the mask and physical chemistry linked to the receptivity properties of electron beams and transformation into visible radiation from the screen to the user.
  • FIG 1 there is shown a television tube according to the invention 83 cm diagonal and 16/9 ratio.
  • the Z axis is the central axis of the tube which corresponds substantially to the central electron beam with zero deflection, that is to say when the barrel 2 emits its three electron beams without the deflector 3, installed around the neck of the tube, receives the least deflection current.
  • the glass slab 1 on which the display screen will be formed is connected to a flared section 6 of the tube by a skirt 5 which is substantially parallel to the axis Z.
  • FIG. 1 a section of the glass slab according to the invention, the layer 8 of phosphors intended to convert the electron beams from the barrel 2 into visible radiation through the glass slab 1 in the direction of the Z axis, and a shadow mask 7.
  • a hole 12 in the mask is selected. This oblong-shaped hole is crossed by the RED, GREEN and BLUE beams which excite the corresponding band of electroluminescent phosphors 9, 10 or 11.
  • FIG 2 there are shown the half-sections of the exterior surfaces of glass slabs according to the invention made parallel to their major axis Ox (a) in the 83 cm (33 inch) version 16/9 for the curves (a ) and 69 cm (27 inches) 4/3 for the curves (b).
  • the upper curve is made along the axis Ox passing through the center of the slab and the lower curve is made at the horizontal edge of the screen, respectively.
  • F 4/3 and for a screen 28 cm (11 inches)
  • the mask made of appropriate material, is calculated using conventional materials such as steel and invar, taking into account the thermomechanical holding performance.
  • the optimized compromise is achieved by iterations of the calculation of the internal surface S2 and of the geometry of the mask so as to obtain an aspect of flatness as good as possible.
  • substantially constant screen rulings They range from 0.7 mm (millimeter) in the center of the screen to 0.8 mm (millimeter) on a corner.
  • the method of the invention makes it possible to calculate the geometry of the external surface S2.
  • the thickness t and the height H of the skirt are determined to have the best value.
  • these two parameters are checked on the large dimension edge m, the small dimension edge m and the corner D. The corresponding values found are: m M D t 20 18 18 H 102 79 73 where the dimensions are given in millimeters, for a 33 "16/9 panel.
  • a surface Sn belongs to the family meeting the requirements of the invention, if its dimension Zn is such that: 100.ABS (Zn-Z) ⁇ 5.Zd
  • Z is the dimension of the homologous point of a standard surface belonging to the family of surfaces of the invention defined by the coefficients C (i) detailed above and Zd is the value of the largest dimension of this surface taken on the large diagonal.

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
EP89401837A 1988-07-27 1989-06-27 Dalle pour écran de tube de télévision en couleurs Expired - Lifetime EP0360627B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810116 1988-07-27
FR8810116A FR2634945B1 (fr) 1988-07-27 1988-07-27 Procede de fabrication d'un tube de television en couleurs a haute definition et tube de television trichrome a haute definition

Publications (2)

Publication Number Publication Date
EP0360627A1 EP0360627A1 (fr) 1990-03-28
EP0360627B1 true EP0360627B1 (fr) 1994-06-01

Family

ID=9368823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401837A Expired - Lifetime EP0360627B1 (fr) 1988-07-27 1989-06-27 Dalle pour écran de tube de télévision en couleurs

Country Status (9)

Country Link
US (1) US4985658A (ko)
EP (1) EP0360627B1 (ko)
KR (1) KR0143077B1 (ko)
CA (1) CA1314587C (ko)
DD (1) DD284099A5 (ko)
DE (1) DE68915668T2 (ko)
FR (1) FR2634945B1 (ko)
RU (1) RU2062522C1 (ko)
TR (1) TR26054A (ko)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000325A (nl) * 1990-02-12 1991-09-02 Koninkl Philips Electronics Nv Kathodestraalbuis en beeldweergeef-inrichting.
JPH0614454B2 (ja) * 1990-03-22 1994-02-23 松下電子工業株式会社 シャドウマスク型カラー受像管
IT1239510B (it) * 1990-03-30 1993-11-03 Videocolor Spa Tubo a raggi catodici avente una lastra frontale perfezionata, con rapporto larghezza/altezza di 16/9"
US5319280A (en) * 1991-05-06 1994-06-07 U.S. Philips Corporation Color picture tube with reduced raster distortion and flat appearing display window
ATE129598T1 (de) * 1991-05-29 1995-11-15 Philips Electronics Nv Elektronenstrahlröhre mit bildfenster.
EP0516218B1 (en) * 1991-05-29 1995-10-25 Koninklijke Philips Electronics N.V. Cathode ray tube comprising a display window
KR940004075Y1 (ko) * 1991-07-10 1994-06-17 삼성전관 주식회사 칼라음극선관
FR2680045B1 (fr) * 1991-07-30 1994-04-01 Hitachi Ltd Tube cathodique en couleurs du type a masque perfore.
KR940000380B1 (ko) * 1991-09-28 1994-01-19 삼성전관 주식회사 칼라 음극선관
US5702801A (en) * 1992-02-26 1997-12-30 Shinih Enterprise Co., Ltd. Method for producing a variable density, corrugated resin-bonded or thermo-bonded fiberfill and the structure produced thereby
DE69300470T2 (de) * 1992-04-06 1996-04-25 Philips Electronics Nv Bildwiedergabeanordnung mit Bildfenster.
JP3354297B2 (ja) * 1994-08-09 2002-12-09 株式会社東芝 カラー受像管
US5568011A (en) * 1995-02-15 1996-10-22 Thomson Consumer Electronics, Inc. Color picture tube faceplate panel
TW341711B (en) * 1996-03-06 1998-10-01 Toshiba Co Ltd Cathode ray tube and method for manufacturing the same
DE19635679A1 (de) 1996-09-03 1998-03-05 Siemens Ag Mensch-Maschine-Schnittstelle (Man-Machine-Interface, MMI) für Flughäfen und Luftverkehrszwecke
SG71046A1 (en) * 1996-10-10 2000-03-21 Connector Systems Tech Nv High density connector and method of manufacture
JP3271565B2 (ja) * 1997-02-24 2002-04-02 三菱電機株式会社 カラー陰極線管パネル
US6160344A (en) 1997-04-12 2000-12-12 Samsung Display Devices Co., Ltd. Cathode-ray tube
TW393661B (en) * 1997-09-02 2000-06-11 Mitsubishi Electric Corp Color picture tube device with stretched shadow grille
US6639346B2 (en) 1997-12-17 2003-10-28 Samsung Display Devices Co., Ltd. CRT panel and a method for manufacturing the same
JPH11242940A (ja) 1997-12-26 1999-09-07 Toshiba Corp カラー受像管
KR100300319B1 (ko) * 1998-11-13 2001-10-29 김순택 음극선관
TW492038B (en) * 2000-04-17 2002-06-21 Toshiba Corp Color cathode ray tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537322B1 (en) * 1982-12-13 1998-03-10 Tokyo Shibaura Electric Co Glass envelope for a cathode-ray tube
US4839556A (en) * 1983-02-25 1989-06-13 Rca Licensing Corporation Cathode-ray tube having an improved shadow mask contour
US4786840A (en) * 1983-02-25 1988-11-22 Rca Licensing Corporation Cathode-ray tube having a faceplate panel with a substantially planar periphery
US4535907B1 (en) * 1983-03-09 1998-03-10 Shibaura Denki Kk Cathode-ray tube
DE3374489D1 (en) * 1983-03-09 1987-12-17 Toshiba Kk Cathode-ray tube
US4887001A (en) * 1983-09-06 1989-12-12 Rca Licensing Corporation Cathode-ray tube having faceplate panel with essentially planar screen periphery
JPH0644457B2 (ja) * 1986-01-30 1994-06-08 松下電子工業株式会社 カラ−受像管
JP2609605B2 (ja) * 1987-03-20 1997-05-14 株式会社日立製作所 シヤドウマスク形カラー受像管

Also Published As

Publication number Publication date
EP0360627A1 (fr) 1990-03-28
TR26054A (tr) 1993-12-15
DD284099A5 (de) 1990-10-31
CA1314587C (fr) 1993-03-16
KR900002392A (ko) 1990-02-28
FR2634945A1 (fr) 1990-02-02
US4985658A (en) 1991-01-15
FR2634945B1 (fr) 1996-04-26
RU2062522C1 (ru) 1996-06-20
KR0143077B1 (ko) 1998-07-01
DE68915668T2 (de) 1994-10-13
DE68915668D1 (de) 1994-07-07

Similar Documents

Publication Publication Date Title
EP0360627B1 (fr) Dalle pour écran de tube de télévision en couleurs
KR100408005B1 (ko) 마스크 스트레칭형 칼라 음극선관용 패널
CN1024869C (zh) 具有改进的16比9宽高比屏面的阴极射线管
EP0271165B1 (en) Projection television system and display tubes for use therein
JPH0614454B2 (ja) シャドウマスク型カラー受像管
JP2000113841A (ja) ＣＲＴ（ＣａｔｈｏｄｅＲａｙＴｕｂｅ）用セミフラットパネル
US6586871B1 (en) CRT panel glass and production method thereof and CRT
JPH0644926A (ja) 陰極線管ディスプレイ
US20020153822A1 (en) CRT panel glass and CRT, and their production methods
FR2529011A1 (fr) Procede de fabrication d'un masque d'ombre pour tube image couleur et masque d'ombre ainsi obtenu
EP1647042B1 (fr) Ensemble cadre/masque pour tube a rayons cathodiques
US4764706A (en) Flat cathode-ray tube and method of fabricating same
US5834887A (en) Color cathode ray tube comprising an in-line electron gun with extended outer apertures
FR2531809A1 (fr) Tube a rayons cathodiques a masque de focalisation
EP1585163B1 (en) Color picture tube
KR0177120B1 (ko) 브라운관의 비구면형 패널
US6861794B2 (en) Color display device with color filter and pigment
US6844667B2 (en) Panel for cathode ray tube
KR200179248Y1 (ko) 전계방출소자의 구조
US20060284542A1 (en) Cathode ray tube
US20050236957A1 (en) Color cathode ray tube
US20080054781A1 (en) Glass Case for Cathode Ray Tubes
EP1529304A2 (fr) Tube a rayons cathodiques en couleur comportant un masque de selection des couleurs
KR100447656B1 (ko) 평면 브라운관용 패널
WO2006090077A2 (fr) Masque pour tube a rayons cathodiques en couleurs

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: A1

Designated state(s): DE ES GB IT NL

17P Request for examination filed

Effective date: 19900829

17Q First examination report despatched

Effective date: 19921116

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

Owner name: THOMSON TUBES & DISPLAYS SA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT NL

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

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940601

Ref country code: NL

Effective date: 19940601

REF Corresponds to:

Ref document number: 68915668

Country of ref document: DE

Date of ref document: 19940707

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940805

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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
REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20010830

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: IT

Payment date: 20080625

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20080624

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20080527

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090626

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 EXPIRATION OF PROTECTION

Effective date: 20090626