JPS6486767A - Picture display device - Google Patents

Picture display device

Info

Publication number
JPS6486767A
JPS6486767A JP24546287A JP24546287A JPS6486767A JP S6486767 A JPS6486767 A JP S6486767A JP 24546287 A JP24546287 A JP 24546287A JP 24546287 A JP24546287 A JP 24546287A JP S6486767 A JPS6486767 A JP S6486767A
Authority
JP
Japan
Prior art keywords
signal
circuits
levels
signal level
signals
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
JP24546287A
Other languages
Japanese (ja)
Inventor
Shigeru Koitaya
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
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 filed Critical Toshiba Corp
Priority to JP24546287A priority Critical patent/JPS6486767A/en
Publication of JPS6486767A publication Critical patent/JPS6486767A/en
Pending legal-status Critical Current

Links

Landscapes

  • Studio Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To freely change the levels of an R, a G, and a B signals and a Y signal within an arbitrary variable range by providing a signal level conversion circuit in a character signal generation device, and controlling the signal level conversion circuit by a control circuit. CONSTITUTION:Signal level setting data are latched at (n) bit latch switch circuits 132-135. The switch circuits set the 2R terminals of ladder circuits 137-140 of R-2R at the ground potential or high impedance according to the signal level setting data D0-Dn latched at the latch circuits. The ladder circuits 137-140, after changing the levels of the R, the G, and the B signals and the YM signal with constant levels supplied from a character signal generation circuit 12 by the resistance ratio of the ladder circuits 137-140 of P-2R, supply them to an RGB superposition circuit 14 at a rear stage. Therefore, it is possible to change the output levels of the R, the G, and the B signals and the YM signal within the arbitrary variable range.
JP24546287A 1987-09-29 1987-09-29 Picture display device Pending JPS6486767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24546287A JPS6486767A (en) 1987-09-29 1987-09-29 Picture display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24546287A JPS6486767A (en) 1987-09-29 1987-09-29 Picture display device

Publications (1)

Publication Number Publication Date
JPS6486767A true JPS6486767A (en) 1989-03-31

Family

ID=17134021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24546287A Pending JPS6486767A (en) 1987-09-29 1987-09-29 Picture display device

Country Status (1)

Country Link
JP (1) JPS6486767A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100602985B1 (en) * 2003-09-29 2006-07-20 산요덴키가부시키가이샤 Character display control circuit and integrated circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100602985B1 (en) * 2003-09-29 2006-07-20 산요덴키가부시키가이샤 Character display control circuit and integrated circuit

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