KR970017130A - DC level control circuit of monitor R.G.B brightness signal - Google Patents

DC level control circuit of monitor R.G.B brightness signal Download PDF

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Publication number
KR970017130A
KR970017130A KR1019950033451A KR19950033451A KR970017130A KR 970017130 A KR970017130 A KR 970017130A KR 1019950033451 A KR1019950033451 A KR 1019950033451A KR 19950033451 A KR19950033451 A KR 19950033451A KR 970017130 A KR970017130 A KR 970017130A
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KR
South Korea
Prior art keywords
switching
signal
level
monitor
brightness signal
Prior art date
Application number
KR1019950033451A
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Korean (ko)
Other versions
KR0138676B1 (en
Inventor
이문걸
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950033451A priority Critical patent/KR0138676B1/en
Publication of KR970017130A publication Critical patent/KR970017130A/en
Application granted granted Critical
Publication of KR0138676B1 publication Critical patent/KR0138676B1/en

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/28—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using colour tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

본 발명은 모니터의 R. G. B 밝기신호의 DC 레벨제어신호에 관한 것으로, 화면밝기 색신호와 DC 레벨신호를 혼합하여 화면밝기신호를 발생시키는 그리드 혼합부와, 이 그리드 혼합부의 R.G.B 출력단에 각각 연결되어 스위칭 절환작용을 하는 스위칭 제어부와, 이 스위칭제어부의 일단에 연결되어 스위칭제어전압을 입력시키는 연산증폭기와, 이 연산증폭기(8)로 DC 레벨조절전압을 공급하는 마이컴으로 이루어져, 모니터의 R.G.B 전자총의 일단에 R.G.B 밝기신호의 DC 레벨을 독립적으로 조절할 수 있는 DC레벨조절회로를 구비하도록 함으로써, R.G.B 밝기신호의 DC 레벨을 각 전자총마다 독립적으로 조절해줄 수 있으므로 이에 따라 모니터의 색조절 범위를 확장시킬 수 있음은 물론 색신호의 구현범위가 넓게 되므로 이에 따라 시스템의 기능성도 증가하도록 된다.The present invention relates to a DC level control signal of a RG B brightness signal of a monitor, and is connected to a grid mixing unit for generating a screen brightness signal by mixing a screen brightness color signal and a DC level signal, and switching connected to an RGB output terminal of the grid mixing unit, respectively. A switching control unit for switching, a operational amplifier connected to one end of the switching control unit for inputting a switching control voltage, and a microcomputer for supplying a DC level control voltage to the operational amplifier 8; Since the DC level control circuit can independently adjust the DC level of the RGB brightness signal, the DC level of the RGB brightness signal can be adjusted independently for each electron gun, so the color control range of the monitor can be extended accordingly. Of course, since the implementation range of the color signal is wider, the functionality of the system is increased accordingly.

Description

모니터의 알지비(R. G. B) 밝기 신호의 디씨(DC) 레벨 제어회로DC level control circuit of monitor R. G. B brightness signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

화면밝기 가변회로부(4)의 화면밝기 색신호와 펄스정류회로부(6)의 DC 레벨신호를 혼합하여 화면밝기 신호를 발생시키는 그리드 혼합부(5)가 구비된 화면밝기 조절회로에 있어서, 상기 그리드 혼합부(5)의 R.G.B출력단에 각각 연결되어 스위칭 절환작용을 하는 스위칭 제어부(7)와, 이 스위칭 제어부(7)의 일단에 연결되어 스위칭 제어전압을 입력시키는 연산증폭기(8)와, 이 연산증폭기(8)로 DC레벨조절전압을 공급하는 마이컴(9)이 구비되는 것을 특징으로 하는 모니터의 알지비(R.G.B) 밝기신호의 디씨(DC) 레벨 제어회로.In the screen brightness control circuit provided with a grid mixing section 5 for generating a screen brightness signal by mixing the screen brightness color signal of the screen brightness variable circuit section 4 and the DC level signal of the pulse rectifying circuit section 6, the grid mixing A switching control unit 7 connected to each of the RGB output stages of the unit 5 to perform a switching switching operation, an operational amplifier 8 connected to one end of the switching control unit 7 and inputting a switching control voltage; (8) A DC level control circuit of an RGB brightness signal of a monitor, characterized in that a microcomputer 9 for supplying a DC level control voltage is provided. 제1항에 있어서, 상기 스위칭 제어부(7)가 그리드 혼합부(5)의 각 R.G.B 출력단에 연결되어 스위칭 작용을 하는 트랜지스터(TR1)와, 이 트랜지스터(TR1)의 베이스단에 연결되어 연산증폭기(8)의 스위칭 제어전압에 따라 스위칭동작을 하는 트랜지스터(TR2)를 구비하는 것을 특징으로 하는 모니터의 알지비(R.G.B) 밝기신호의 디씨(DC) 레벨 제어회로.The transistor of claim 1, wherein the switching controller 7 is connected to each RGB output terminal of the grid mixing unit 5 and performs a switching action, and an operational amplifier connected to the base terminal of the transistor TR1. And a transistor (TR2) for switching operation in accordance with the switching control voltage of (8). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950033451A 1995-09-30 1995-09-30 A dc level control circuit of f.g.b brightness signal of a monitor KR0138676B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950033451A KR0138676B1 (en) 1995-09-30 1995-09-30 A dc level control circuit of f.g.b brightness signal of a monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950033451A KR0138676B1 (en) 1995-09-30 1995-09-30 A dc level control circuit of f.g.b brightness signal of a monitor

Publications (2)

Publication Number Publication Date
KR970017130A true KR970017130A (en) 1997-04-30
KR0138676B1 KR0138676B1 (en) 1998-06-15

Family

ID=19428863

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950033451A KR0138676B1 (en) 1995-09-30 1995-09-30 A dc level control circuit of f.g.b brightness signal of a monitor

Country Status (1)

Country Link
KR (1) KR0138676B1 (en)

Also Published As

Publication number Publication date
KR0138676B1 (en) 1998-06-15

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