KR970031779A - Horizontal Drive Circuit of Image Display Equipment - Google Patents

Horizontal Drive Circuit of Image Display Equipment Download PDF

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Publication number
KR970031779A
KR970031779A KR1019950040111A KR19950040111A KR970031779A KR 970031779 A KR970031779 A KR 970031779A KR 1019950040111 A KR1019950040111 A KR 1019950040111A KR 19950040111 A KR19950040111 A KR 19950040111A KR 970031779 A KR970031779 A KR 970031779A
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KR
South Korea
Prior art keywords
horizontal
horizontal drive
size
screen size
unit
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Application number
KR1019950040111A
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Korean (ko)
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KR0164971B1 (en
Inventor
정지곤
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구자홍
엘지전자 주식회사
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Priority to KR1019950040111A priority Critical patent/KR0164971B1/en
Publication of KR970031779A publication Critical patent/KR970031779A/en
Application granted granted Critical
Publication of KR0164971B1 publication Critical patent/KR0164971B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/223—Controlling dimensions

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 영상표시기기에서 수평출력회로를 구동시키는 수평드라이브 회로에 있어서, 사용자의 화면 수평크기 조절에 의하여 드라이브 조건이 변경됨을 일정하게 고정되어 있는 수평드라이브 전류를 보정하여 항상 최적의 드라이브 조건을 만족하도록 한 영상표시기기의 수평드라이브 회로에 관한 것이다.According to the present invention, in a horizontal drive circuit for driving a horizontal output circuit in an image display device, an optimum drive condition is always satisfied by correcting a horizontal drive current which is fixedly fixed to change a drive condition by adjusting a screen horizontal size of a user. The horizontal drive circuit of the video display device.

종래 수평드라이브 회로에 있어서, 화면크기를 특정한 크기에서 수평출력트랜지스터의 최적 드라이브 조건을 맞추어 놓았으므로, 사용자가 화면크기를 임의로 줄이거나 키우면 수평출력트랜지스터의 드라이브 조건은 틀어지게 되어 수평출력트랜지스터의 발열이 심하게 발생하게 된다.In the conventional horizontal drive circuit, because the screen size is set to the optimum drive condition of the horizontal output transistor at a specific size, if the user arbitrarily reduces or increases the screen size, the drive condition of the horizontal output transistor is changed, and thus the heat generation of the horizontal output transistor is reduced. It happens badly.

특히 근래에 들어서는 화면크기를 표준 사이즈로 사용하는 사용자가 있는가 하면 오버스캔이나 풀 스캔으로 사용하는 사용자도 많이 있으므로 화면크기에 따른 수평드라이브 조건 보정의 필요성이 절실하게 되었다.In particular, in recent years, there are many users who use the screen size as a standard size, while many users use the overscan or full scan, so the necessity of correcting the horizontal drive condition according to the screen size is urgently needed.

따라서 본 발명에서는 이와같은 종래의 문제점을 해결하기 위하여 수평크기조정 신호를 인출하여 수평드라이브 보정부에 입력시켜 화면크기에 따른 수평드라이브 조건을 보정하게되는 바, 사용자가 화면크기를 표준크기 이상으로 조절하면 수평드라이브 전류를 상승시켜 언더 드라이브조건이 됨을 방지하고, 화면크기를 줄이면 수평드라이브 전류를 감소시켜 오버 드라이브 조건이 됨을 방지하도록 하므로서, 사용자가 설정하는 화면크기에 따라 항상 최적의 드라이브 조건을 유지시킬 수 있도록 한 것이다.Accordingly, in the present invention, in order to solve such a conventional problem, the horizontal size adjustment signal is extracted and input to the horizontal drive correction unit to correct the horizontal drive condition according to the screen size, and the user adjusts the screen size to the standard size or more. If you increase the horizontal drive current to prevent underdrive conditions, and if the screen size is reduced to reduce the horizontal drive current to prevent overdrive conditions, you can always maintain the optimal drive conditions according to the screen size set by the user. I would have to.

Description

영상표시기기의 수평드라이브 회로Horizontal Drive Circuit of Image Display Equipment

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

제3도는 본 발명 영상표시기기의 수평드라이브 회로도.3 is a horizontal drive circuit diagram of an image display device of the present invention.

제4도는 본 발명의 마이컴에서 출력되는 수평크기 조절 제어회로의 파형도로서, 제4a도는 수평크기 조절이 중앙에 위치할때의 출력 파형도, 제4b도는 수평크기를 키우게 될때의 출력 파형도, 제4c도는 수평크기를 줄이게 될때의 출력 파형도.4 is a waveform diagram of a horizontal size control circuit output from the microcomputer of the present invention, Figure 4a is an output waveform diagram when the horizontal size adjustment is located in the center, Figure 4b is an output waveform diagram when the horizontal size is increased, 4c is an output waveform diagram when the horizontal size is reduced.

Claims (1)

사용자의 수평크기조절을 위한 키이신호를 입력하기 위한 키이입력부(11)와, 키이입력부(11)로 부터 입력된 사용자의 키이입력신호를 입력받아 그에 따른 수평크기 제어신호를 출력하는 마이컴(12)과, 마이컴(12)에서 출력된 수평크기 제어신호를 2중 적분하는 적분부(13)와, 적분부(13)로 부터 출력되는 수평크기 제어신호를 입력받아 수평크기를 조절하는 수평크기 조절부(14)와, 상기 적분부(13)으로 부터 2중 적분후 출력되는 수평크기 제어신호를 입력받아 그에 따른 수평 드라이브 조건을 보정하는 수평드라이브 보정부(15)와, 수평드라이브 보정부(15)에 의해 보정된 수평드라이브 전류를 출력하는 수평드라이브부(16)와, 수평드라이브부(16)로부터 출력되는 수평드라이브 전류를 입력받아 수평편향 전류를 출력하는 수평출력부(17)로 구성되는 것을 특징으로 하는 영상표시기기의 수평드라이브 회로.A key input unit 11 for inputting a key signal for adjusting a user's horizontal size, and a microcomputer 12 for receiving a user's key input signal input from the key input unit 11 and outputting a horizontal size control signal accordingly. And an integration unit 13 for integrating the horizontal size control signal output from the microcomputer 12 and a horizontal size control unit for receiving the horizontal size control signal output from the integration unit 13 and adjusting the horizontal size. (14), a horizontal drive correction unit 15 for receiving a horizontal size control signal output after the double integration from the integration unit 13 and correcting the horizontal drive condition accordingly, and a horizontal drive correction unit 15 And a horizontal drive unit 16 for outputting the horizontal drive current corrected by the horizontal drive unit 16 and a horizontal output unit 17 for receiving the horizontal drive current output from the horizontal drive unit 16 and outputting a horizontal deflection current. Ugh A horizontal drive circuit of an image display device. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950040111A 1995-11-07 1995-11-07 Horizontal drive circuit of video display apparatus KR0164971B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950040111A KR0164971B1 (en) 1995-11-07 1995-11-07 Horizontal drive circuit of video display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950040111A KR0164971B1 (en) 1995-11-07 1995-11-07 Horizontal drive circuit of video display apparatus

Publications (2)

Publication Number Publication Date
KR970031779A true KR970031779A (en) 1997-06-26
KR0164971B1 KR0164971B1 (en) 1999-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950040111A KR0164971B1 (en) 1995-11-07 1995-11-07 Horizontal drive circuit of video display apparatus

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Also Published As

Publication number Publication date
KR0164971B1 (en) 1999-03-20

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