JPS5576556A - Driving method of cathode ray picture plate - Google Patents

Driving method of cathode ray picture plate

Info

Publication number
JPS5576556A
JPS5576556A JP14967378A JP14967378A JPS5576556A JP S5576556 A JPS5576556 A JP S5576556A JP 14967378 A JP14967378 A JP 14967378A JP 14967378 A JP14967378 A JP 14967378A JP S5576556 A JPS5576556 A JP S5576556A
Authority
JP
Japan
Prior art keywords
phosphors
voltage
filaments
controlling electrode
driving method
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
JP14967378A
Other languages
Japanese (ja)
Inventor
Sashiro Kamimura
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.)
Noritake Itron Corp
Original Assignee
Ise Electronics Corp
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 Ise Electronics Corp filed Critical Ise Electronics Corp
Priority to JP14967378A priority Critical patent/JPS5576556A/en
Publication of JPS5576556A publication Critical patent/JPS5576556A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

PURPOSE: To improve the sensitivity and contrast of pictures with only simple operation by making the voltage applied on the controlling electrode provided between phosphors and filaments variable.
CONSTITUTION: A transparent electrode 2 and a photoconductive layer 3 are coated on the transparent substrate 1b of an envelope 1, on the upper surface a plurality of phosphors 4 are provided in a matrix form, and an untransparent insulation film 5 is formed on the area not provided with phosphors 4. Furthermore filaments 6 are stringed above the phosphors 4, a controlling electrode 7 is formed between filaments 6 and the phosphors 4. A voltage is applied on the controlling electrode 7 through a volume to make the voltage variable. Thus the internal resistance in the picture plate can be varied by varing voltage of the controlling electrode 7, and the sensitivity and contrast of a picture can be controlled preferably.
COPYRIGHT: (C)1980,JPO&Japio
JP14967378A 1978-12-05 1978-12-05 Driving method of cathode ray picture plate Pending JPS5576556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14967378A JPS5576556A (en) 1978-12-05 1978-12-05 Driving method of cathode ray picture plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14967378A JPS5576556A (en) 1978-12-05 1978-12-05 Driving method of cathode ray picture plate

Publications (1)

Publication Number Publication Date
JPS5576556A true JPS5576556A (en) 1980-06-09

Family

ID=15480322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14967378A Pending JPS5576556A (en) 1978-12-05 1978-12-05 Driving method of cathode ray picture plate

Country Status (1)

Country Link
JP (1) JPS5576556A (en)

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