JPS57202628A - Projection type cathode ray tube - Google Patents

Projection type cathode ray tube

Info

Publication number
JPS57202628A
JPS57202628A JP8749081A JP8749081A JPS57202628A JP S57202628 A JPS57202628 A JP S57202628A JP 8749081 A JP8749081 A JP 8749081A JP 8749081 A JP8749081 A JP 8749081A JP S57202628 A JPS57202628 A JP S57202628A
Authority
JP
Japan
Prior art keywords
face
inner face
face plate
material layer
ray tube
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.)
Pending
Application number
JP8749081A
Other languages
Japanese (ja)
Inventor
Takeo Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8749081A priority Critical patent/JPS57202628A/en
Publication of JPS57202628A publication Critical patent/JPS57202628A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18Luminescent screens
    • H01J29/185Luminescent screens measures against halo-phenomena

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To prevent the deterioration of the brightness due to the temperature rise and the deterioration of the resolution due to the light diffusion of the fluorescent face, by forming the grid separation wall composed of the opaque material on the inner face of the face plate while coating the inner face between said walls with specific thickness of the fluorescent material layer through a transparent conductive film. CONSTITUTION:The inner face of a face plate 4 is coated with the grid separation wall 12 made of the opaque member such as the metal having the electrical and thermal conductivity with the predetermined pitch, width and height then the inner face of the face plate between said walls 12 is coated with the fluorescent material layer 13. Here the thickness (b) of said wall and the thickness (a) of the fluorescent material layer 13 has the relation a<=b. Then a thin metalback 14 made of Al is formed at the opposite face of the face plate of said wall 12 and said layer 13. Consequently a cathode ray tube having high brightness and high resolution is obtained.
JP8749081A 1981-06-09 1981-06-09 Projection type cathode ray tube Pending JPS57202628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8749081A JPS57202628A (en) 1981-06-09 1981-06-09 Projection type cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8749081A JPS57202628A (en) 1981-06-09 1981-06-09 Projection type cathode ray tube

Publications (1)

Publication Number Publication Date
JPS57202628A true JPS57202628A (en) 1982-12-11

Family

ID=13916390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8749081A Pending JPS57202628A (en) 1981-06-09 1981-06-09 Projection type cathode ray tube

Country Status (1)

Country Link
JP (1) JPS57202628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004022247A (en) * 2002-06-13 2004-01-22 Kakuma:Kk Fluorescent screen of electron beam tube and display device using electron beam tube using it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004022247A (en) * 2002-06-13 2004-01-22 Kakuma:Kk Fluorescent screen of electron beam tube and display device using electron beam tube using it

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