JPS54157436A - Luminance adjusting device of color braun tube - Google Patents

Luminance adjusting device of color braun tube

Info

Publication number
JPS54157436A
JPS54157436A JP6568478A JP6568478A JPS54157436A JP S54157436 A JPS54157436 A JP S54157436A JP 6568478 A JP6568478 A JP 6568478A JP 6568478 A JP6568478 A JP 6568478A JP S54157436 A JPS54157436 A JP S54157436A
Authority
JP
Japan
Prior art keywords
cathode
grid
bias voltage
adjusting device
luminance adjusting
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
JP6568478A
Other languages
Japanese (ja)
Other versions
JPS6232477B2 (en
Inventor
Michitaka Osawa
Shiyuuzou Matsumoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6568478A priority Critical patent/JPS54157436A/en
Publication of JPS54157436A publication Critical patent/JPS54157436A/en
Publication of JPS6232477B2 publication Critical patent/JPS6232477B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce greatly the difference of luminance caused by the display colors by controlling the bias voltage between the cathode and the grid of each electronic gun based on the conducting state of the driving transistor to which the input signal is supplied.
CONSTITUTION: The bias voltage between the cathode and the grid of each electronic gun is controlled based on the conducting state of driving transistor Tr2 which is connected between the cathode and the grid and receives application of the input signal. Then the lihgt emission of each display color is controlled, and thus the active bias voltage of Tr2 is controlled according to the combinations of the input signals. As a result, the difference of the luminance caused by the display colors can be reduced greatly.
COPYRIGHT: (C)1979,JPO&Japio
JP6568478A 1978-06-02 1978-06-02 Luminance adjusting device of color braun tube Granted JPS54157436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6568478A JPS54157436A (en) 1978-06-02 1978-06-02 Luminance adjusting device of color braun tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6568478A JPS54157436A (en) 1978-06-02 1978-06-02 Luminance adjusting device of color braun tube

Publications (2)

Publication Number Publication Date
JPS54157436A true JPS54157436A (en) 1979-12-12
JPS6232477B2 JPS6232477B2 (en) 1987-07-15

Family

ID=13294073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6568478A Granted JPS54157436A (en) 1978-06-02 1978-06-02 Luminance adjusting device of color braun tube

Country Status (1)

Country Link
JP (1) JPS54157436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133794A (en) * 1980-03-24 1981-10-20 Hitachi Ltd Image output cirucit
JP2007115686A (en) * 2005-10-17 2007-05-10 Samsung Sdi Co Ltd Electron emission display

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947295A (en) * 1972-08-23 1974-05-07
JPS518530A (en) * 1974-07-10 1976-01-23 New Nippon Electric Co KODENATSUSEIRYUSOCHINO HOGOKAIRO
JPS53118940A (en) * 1977-03-28 1978-10-17 Sony Corp Character display unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947295A (en) * 1972-08-23 1974-05-07
JPS518530A (en) * 1974-07-10 1976-01-23 New Nippon Electric Co KODENATSUSEIRYUSOCHINO HOGOKAIRO
JPS53118940A (en) * 1977-03-28 1978-10-17 Sony Corp Character display unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133794A (en) * 1980-03-24 1981-10-20 Hitachi Ltd Image output cirucit
JP2007115686A (en) * 2005-10-17 2007-05-10 Samsung Sdi Co Ltd Electron emission display

Also Published As

Publication number Publication date
JPS6232477B2 (en) 1987-07-15

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