EP0600325A1 - Tube à rayons cathodiques avec canons multiples - Google Patents

Tube à rayons cathodiques avec canons multiples Download PDF

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Publication number
EP0600325A1
EP0600325A1 EP93118696A EP93118696A EP0600325A1 EP 0600325 A1 EP0600325 A1 EP 0600325A1 EP 93118696 A EP93118696 A EP 93118696A EP 93118696 A EP93118696 A EP 93118696A EP 0600325 A1 EP0600325 A1 EP 0600325A1
Authority
EP
European Patent Office
Prior art keywords
picture tube
cannons
tube according
strips
optical
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
EP93118696A
Other languages
German (de)
English (en)
Other versions
EP0600325B1 (fr
Inventor
Gerard Rilly
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt 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
Application filed by Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of EP0600325A1 publication Critical patent/EP0600325A1/fr
Application granted granted Critical
Publication of EP0600325B1 publication Critical patent/EP0600325B1/fr
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
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2231/00—Cathode ray tubes or electron beam tubes
    • H01J2231/12—CRTs having luminescent screens
    • H01J2231/125—CRTs having luminescent screens with a plurality of electron guns within the tube envelope
    • H01J2231/1255—CRTs having luminescent screens with a plurality of electron guns within the tube envelope two or more neck portions containing one or more guns

Definitions

  • the invention is based on a picture tube according to the preamble of claim 1. It is known to create a large screen area with a screen diagonal of ⁇ 40 "by arranging a plurality of cannons in such a way that a large screen area is displayed with a plurality of partial images Solutions are used with shadow masks, which considerably reduce the efficiency of the brightness and allow the field transitions to be recognized. The deviation of the electron beam and its brightness are not noticed and corrected.
  • the invention has for its object to provide a picture tube without a shadow mask with a variety of cannons, in which the field transitions are imperceptible. This object is achieved by the invention specified in claim 1. Advantageous further developments are specified in the subclaims.
  • each cannon is arranged side by side in the vertical and horizontal directions.
  • the inside of the screen is coated with blue, green and red vertical phosphor stripes and these are separated by opaque stripes, preferably black matrix stripes.
  • black matrix stripe areas there are index areas that are used for vertical and horizontal position finding of the beam.
  • the cannons arranged in the vertical direction form a column, and each column has at least one optical sensor to determine the position and the brightness of the beam. In the event of deviations, readjustments are made in the horizontal and vertical directions and the brightness is adjusted so that the sub-picture transitions cannot be seen.
  • the individual columns are separated by optical walls that are on the inside of the screen, but each cannon writes its own drawing file on the screen.
  • the sequence of the drawing files results on the screen the entire image, in which no partial image transition can be seen due to the brightness-continuous transitions.
  • Fig. 1 shows a screen of the picture tube, which is equipped with fifteen mono-beam guns K.
  • the arrangement of three vertical cannons K in a column and the alignment of five columns in the horizontal direction was chosen based on a 16: 9 format to be displayed.
  • the image to be displayed is created by fifteen cannons K that write the partial images 1.1 to 3.5.
  • the phosphor stripes blue B, green G and red R are arranged vertically next to each other and separated by black matrix stripes BM.
  • the vertical stripe-like arrangement of the phosphor stripes Ph has the advantage, on the one hand, that different line numbers can be projected, and, on the other hand, that it is possible to work with the mono-jet cannons K already mentioned. Since a television picture is usually written with horizontal lines, but here the picture is composed of vertically written lines, electronics with an image memory are to be provided which record the picture with the horizontal lines and output them in vertical lines.
  • An optical sensor Opt is arranged in the middle of each column in order to determine the position of the individual beams to be able to.
  • the individual columns are separated by optical walls 2, the optical wall having a gap at the beginning and at the end of the column. This gap is used by the adjacent sensor and the sensor of the column concerned, so that the optical sensors Opt perceive the position and the brightness of the adjacent beams and so that an adaptation is made between the partial images.
  • the beam path in a column is synchronous, so that the information about the beginning and end of the column is advantageously used to monitor and, if necessary, adapt the synchronization.
  • the scanned area aB is larger than the visible area sB.
  • the picture tube 2 shows the picture tube viewed from above, whereby the optical sensor Opt for a column, the deflection yoke 3 of the picture tube and the cannons K can be seen. It can be seen that the angular range to be represented of a cannon is small, approx. 40 ° . For this reason, the picture tube can get by with a smaller depth T.
  • the optical walls 2 separate the columns from each other.
  • FIG. 3 shows the coating of a screen detail viewed from above.
  • the vertical phosphor stripes Ph in blue B, green G, red R and the black matrix areas BM are arranged between the glass 4 on the front and the aluminum layer 5 on the back, on which the index areas I are located.
  • the length of a pixel p extends from the center of an index area I to the center of the following index area I in the X direction, with the phosphor stripes blue B, green G and red R in between and a pixel p divided into four equal distances a becomes. It is also possible to integrate the index areas I into the black matrix areas BM.
  • FIG. 4 shows the coating of the screen detail according to FIG. 3 viewed from behind.
  • the subdivision of the index areas I can be seen, the index areas I being offset by their width and lying on the same optical axis in the vertical direction.
  • the distance between the index areas I is ri, the length yi of an index area I is more than four spot lengths.
  • the light spot or spot S generated by the beam is elliptical, the length of the ellipse being extendable.
  • the width of the spot must be adapted to the phosphor stripe Ph.
  • the spot writes the vertical lines one after the other by first writing over the index areas I, then blue B, green G and red R.
  • the index areas are arranged so that if the spot is too far to the left of the vertical direction, the indexes I1 and I3 project more light than index I2 and so that the deviation is measured by the difference in amplitude and readjusted by influencing the beam deflection by the deflection yokes 3.
  • the spot hits the area ri between two vertical indexes I, no more light is generated, so that the vertical spot position is detected. Since the image information to be written is in a memory, if a readjustment based on the index areas has been detected, it is changed accordingly, so that the phosphor stripes blue B, green G and red R are controlled correctly.

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Telescopes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
EP93118696A 1992-12-01 1993-11-20 Tube à rayons cathodiques avec canons multiples Expired - Lifetime EP0600325B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240353 1992-12-01
DE4240353A DE4240353A1 (de) 1992-12-01 1992-12-01 Bildröhre mit einer Vielzahl von Kanonen

Publications (2)

Publication Number Publication Date
EP0600325A1 true EP0600325A1 (fr) 1994-06-08
EP0600325B1 EP0600325B1 (fr) 1997-03-05

Family

ID=6474090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118696A Expired - Lifetime EP0600325B1 (fr) 1992-12-01 1993-11-20 Tube à rayons cathodiques avec canons multiples

Country Status (5)

Country Link
US (1) US5418426A (fr)
EP (1) EP0600325B1 (fr)
JP (1) JPH06215707A (fr)
CN (1) CN1046374C (fr)
DE (2) DE4240353A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725421A1 (fr) * 1995-02-03 1996-08-07 Kabushiki Kaisha Toshiba Tube à rayons cathodiques couleur
EP0814493A2 (fr) * 1996-05-21 1997-12-29 Kabushiki Kaisha Toshiba Tube couleur à rayons cathodiques à faisceau indexé
EP1039762A1 (fr) * 1999-03-17 2000-09-27 Sony Corporation Tube cathodique et méthode de correction d'image

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061038A (en) * 1995-11-21 2000-05-09 Washburn; Clayton A. Multi-deflection CRT display
TW457510B (en) * 1999-05-21 2001-10-01 Sony Corp Image control device and method, and image display device
TW451247B (en) * 1999-05-25 2001-08-21 Sony Corp Image control device and method, and image display device
JP2001056658A (ja) * 1999-06-07 2001-02-27 Sony Corp 陰極線管並びに輝度制御装置および方法
JP3417394B2 (ja) * 2000-09-13 2003-06-16 ソニー株式会社 陰極線管および陰極線管における信号検出方法
CN107728976B (zh) * 2017-09-22 2021-02-09 海信视像科技股份有限公司 一种画面调节方法及其装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173878A (ja) * 1986-01-27 1987-07-30 Nec Kansai Ltd ビ−ムインデツクス形陰極線管装置
EP0356823A1 (fr) * 1988-08-30 1990-03-07 Kabushiki Kaisha Toshiba Tube à rayons cathodiques en couleur et enveloppe à utiliser avec tube à rayons cathodiques en couleur

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289196A (en) * 1962-02-19 1966-11-29 Hull Instr Inc Cathode ray tube display with means for recording the tube display
US4225880A (en) * 1978-11-16 1980-09-30 Goodman David M Energy-efficient beam-index displays with programmable power supplies
DE3006943A1 (de) * 1980-02-25 1981-09-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Farbbildwiedergabevorrichtung
US4386364A (en) * 1980-09-12 1983-05-31 Sony Corporation Image display apparatus
SU1021024A1 (ru) * 1981-01-27 1983-05-30 Предприятие П/Я Г-4937 Устройство отображени информации на большом экране
FR2549671B1 (fr) * 1983-07-22 1987-05-22 Thomson Csf Dispositif d'affichage d'une image de television de grandes dimensions et recepteur de television comportant un tel dispositif
JPH0750593B2 (ja) * 1985-05-10 1995-05-31 株式会社東芝 カラ−受像管
JPH0746574B2 (ja) * 1985-05-10 1995-05-17 株式会社東芝 陰極線管装置
JP2565881B2 (ja) * 1985-12-09 1996-12-18 株式会社東芝 カラ−受像管装置
JP2693419B2 (ja) * 1986-01-22 1997-12-24 株式会社東芝 カラー受像装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173878A (ja) * 1986-01-27 1987-07-30 Nec Kansai Ltd ビ−ムインデツクス形陰極線管装置
EP0356823A1 (fr) * 1988-08-30 1990-03-07 Kabushiki Kaisha Toshiba Tube à rayons cathodiques en couleur et enveloppe à utiliser avec tube à rayons cathodiques en couleur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 17 (E - 574) 19 January 1988 (1988-01-19) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725421A1 (fr) * 1995-02-03 1996-08-07 Kabushiki Kaisha Toshiba Tube à rayons cathodiques couleur
US5694003A (en) * 1995-02-03 1997-12-02 Kabushiki Kaisha Toshiba Plural gun color CRT with inclined index phosphor layers
EP0814493A2 (fr) * 1996-05-21 1997-12-29 Kabushiki Kaisha Toshiba Tube couleur à rayons cathodiques à faisceau indexé
EP0814493A3 (fr) * 1996-05-21 2000-02-09 Kabushiki Kaisha Toshiba Tube couleur à rayons cathodiques à faisceau indexé
EP1039762A1 (fr) * 1999-03-17 2000-09-27 Sony Corporation Tube cathodique et méthode de correction d'image
US6304034B1 (en) 1999-03-17 2001-10-16 Sony Corporation Cathode ray tube and image correcting method

Also Published As

Publication number Publication date
EP0600325B1 (fr) 1997-03-05
DE4240353A1 (de) 1994-06-09
US5418426A (en) 1995-05-23
JPH06215707A (ja) 1994-08-05
CN1046374C (zh) 1999-11-10
DE59305608D1 (de) 1997-04-10
CN1091858A (zh) 1994-09-07

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