KR960036610A - Brightness Control Device for Wide Television - Google Patents
Brightness Control Device for Wide Television Download PDFInfo
- Publication number
- KR960036610A KR960036610A KR1019950007408A KR19950007408A KR960036610A KR 960036610 A KR960036610 A KR 960036610A KR 1019950007408 A KR1019950007408 A KR 1019950007408A KR 19950007408 A KR19950007408 A KR 19950007408A KR 960036610 A KR960036610 A KR 960036610A
- Authority
- KR
- South Korea
- Prior art keywords
- abl
- screen mode
- circuit
- wide television
- voltage level
- Prior art date
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- Television Receiver Circuits (AREA)
Abstract
본 발명은 와이드 텔레비전에서 시청자에 의해 화면모드가 절환되면 플라이백 트랜스포머의 ABL단자로의 비임전류량을 제어하여 ABL회로에서의 출력전압에는 아무런 변동이 없도록 함으로써 화면모드절환에 따른 화면밝기의 차이를 보정하여 주도록 한 와이드 텔레비전의 휘도조절장치를 제공하기 위한 것이다.According to the present invention, when a screen mode is switched by a viewer in a wide television, the difference in screen brightness according to screen mode switching is corrected by controlling the amount of beam current to the ABL terminal of the flyback transformer so that there is no change in the output voltage in the ABL circuit. To provide a brightness control device for a wide television.
이를 위해 본 발명은, 휘도제어신호를 입력받아 CRT수상관(20)으로 휘도조절신호를 출력하는 영상증폭회로(18)와, 플라이백 트랜스포머(26)에서 상기 CRT수상관(20)의 애노드로 흐르는 전류의 변화를 검출하여 상기 CRT수상관(20)의 비임전류를 규정값 이하로 제한하도록 된 ABL회로(24)를 구비한 와이드 텔레비전에서, 상기 ABL회로(24)와 상기 플라이백 트랜스포머(26)의 ABL단자의 공통접속점(C)에 설치되어 기설정된 화면모드가 다른 화면비의 화면모드로 절환되면 상기 ABL회로(24)의 출력전압레벨에 변동이 없도록 상기 공통접속점(C)의 전위를 조절하는 ABL전압레벨조절회로부(28)와, 와이드 텔레비전의 전체적인 동작을 제어하면서 기설정된 화면모드가 다른 화면비의 화면모드로 절환되면 상기 ABL전압레벨조절회로부(28)의 동작을 제어하는 마이컴(11)을 더 구비하여 구성된 것이다.To this end, the present invention, the image amplification circuit 18 for receiving the luminance control signal and outputs the luminance control signal to the CRT receiver 20, and the flyback transformer 26 to the anode of the CRT receiver 20 In a wide television having an ABL circuit 24 configured to detect a change in current flowing and limit the beam current of the CRT receiver 20 to a predetermined value or less, the ABL circuit 24 and the flyback transformer 26. The potential of the common connection point C is adjusted so that the output voltage level of the ABL circuit 24 does not change when the preset screen mode is switched to the screen mode of another aspect ratio. The microcomputer 11 for controlling the operation of the ABL voltage level adjusting circuit section 28 when the predetermined screen mode is switched to a screen mode having a different aspect ratio while controlling the overall operation of the wide television set. Equipped with more W is configured.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 일반적인 컬러텔레비전의 휘도조절장치를 설명하기 위한 요부블럭도, 제2도는 본 발명의 일실시예에 따른 와이어 텔레비전의 휘도조절장치를 설명하기 위한 요부블럭도이다.1 is a main block diagram for explaining a brightness control device of a general color television, FIG. 2 is a main block diagram for explaining a brightness control device of a wire television according to an embodiment of the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007408A KR960036610A (en) | 1995-03-31 | 1995-03-31 | Brightness Control Device for Wide Television |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007408A KR960036610A (en) | 1995-03-31 | 1995-03-31 | Brightness Control Device for Wide Television |
Publications (1)
Publication Number | Publication Date |
---|---|
KR960036610A true KR960036610A (en) | 1996-10-28 |
Family
ID=66552800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950007408A KR960036610A (en) | 1995-03-31 | 1995-03-31 | Brightness Control Device for Wide Television |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR960036610A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100722035B1 (en) * | 2005-05-31 | 2007-05-25 | 엘지전자 주식회사 | Apparatus and method for adjusting luminance through feedback in television receiver |
-
1995
- 1995-03-31 KR KR1019950007408A patent/KR960036610A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100722035B1 (en) * | 2005-05-31 | 2007-05-25 | 엘지전자 주식회사 | Apparatus and method for adjusting luminance through feedback in television receiver |
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Legal Events
Date | Code | Title | Description |
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WITN | Withdrawal due to no request for examination |