JPS55936A - Color display unit - Google Patents

Color display unit

Info

Publication number
JPS55936A
JPS55936A JP7377778A JP7377778A JPS55936A JP S55936 A JPS55936 A JP S55936A JP 7377778 A JP7377778 A JP 7377778A JP 7377778 A JP7377778 A JP 7377778A JP S55936 A JPS55936 A JP S55936A
Authority
JP
Japan
Prior art keywords
inputted
signal
synchronizing signal
vertical
display
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
JP7377778A
Other languages
Japanese (ja)
Other versions
JPS613429B2 (en
Inventor
Shuzo Matsumoto
Michitaka Osawa
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 JP7377778A priority Critical patent/JPS55936A/en
Publication of JPS55936A publication Critical patent/JPS55936A/en
Publication of JPS613429B2 publication Critical patent/JPS613429B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Computer Display Output (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE: To make small characters, etc., on a display screen easy to see, by horizontally shifting an electron beam spot by a fixed distance at a cycle twice the vertical one in the color Braun tube of the display unit of a computer, etc.
CONSTITUTION: A horizontal synchronizing signal inputted to terminal 9 and a signal obtained by delaying the signal by delay circuit 15 are alternated by a signal, obtained by dividing a vertical synchronizing signal inputted to terminal 10 into a double period by divider circuit 13, before being inputted to horizontal deflection circuit 11. As a result, when the delayed synchronizing signal is inputted, the entire screen shifts horizontally to the right and determining the delay time with this movement nearly a half the shadow mask pitch causes alternate states (a) and (b) to alternate on the screen at every vertical period when the electron beam diameter is equal to the mask pitch, equalizing the luminous areas of red, green and blue in ratio on the average. As a result, variation in color is much less than conventional one as to white display and even fine display characters can be made easy to see.
COPYRIGHT: (C)1980,JPO&Japio
JP7377778A 1978-06-20 1978-06-20 Color display unit Granted JPS55936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7377778A JPS55936A (en) 1978-06-20 1978-06-20 Color display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7377778A JPS55936A (en) 1978-06-20 1978-06-20 Color display unit

Publications (2)

Publication Number Publication Date
JPS55936A true JPS55936A (en) 1980-01-07
JPS613429B2 JPS613429B2 (en) 1986-02-01

Family

ID=13527963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7377778A Granted JPS55936A (en) 1978-06-20 1978-06-20 Color display unit

Country Status (1)

Country Link
JP (1) JPS55936A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63275284A (en) * 1987-05-07 1988-11-11 Hitachi Ltd Crt display device
JPH0310647U (en) * 1989-06-15 1991-01-31
JPH04218111A (en) * 1991-01-11 1992-08-07 Toshiba Corp Rice cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63275284A (en) * 1987-05-07 1988-11-11 Hitachi Ltd Crt display device
JPH0310647U (en) * 1989-06-15 1991-01-31
JPH04218111A (en) * 1991-01-11 1992-08-07 Toshiba Corp Rice cooker

Also Published As

Publication number Publication date
JPS613429B2 (en) 1986-02-01

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