KR980007568A - Television with sub picture brightness correction function in PIP mode - Google Patents
Television with sub picture brightness correction function in PIP mode Download PDFInfo
- Publication number
- KR980007568A KR980007568A KR1019960023419A KR19960023419A KR980007568A KR 980007568 A KR980007568 A KR 980007568A KR 1019960023419 A KR1019960023419 A KR 1019960023419A KR 19960023419 A KR19960023419 A KR 19960023419A KR 980007568 A KR980007568 A KR 980007568A
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- KR
- South Korea
- Prior art keywords
- screen
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- video signal
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- main
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Abstract
본 발명은 텔레비전의 PIP(Picture In Picture)기능 수행시 주화면이 어두운 경우 부화면의 신호전압을 강하함으로써 부화면 발기를 보정하여 전체적인 화질을 개선할 수 있도록 PIP모드시 부화면 밝기보정기능을 갖춘 텔레비전을 제공하는 것을 목적으로 하며, 입력된 복합영상신호를 주/부 복합영상신호로 분리하는 다화면 모드절환부(10)와, 상기 다화면 모드절환부(10)에서 분리되어 입력된 부화면 복합영상신호를 영상신호처리하는 부화면 처리부(30), 상기 영상신호처리된 부화면 영상신호를 소정의 증폭도로 증폭하는 증폭부(40), 상기 다화면 모드절환부(10)에서 분리되어 입력된 주화면 복합영상신호와 상기 증폭부(40)로부터 인가된 부화면 영상신호를 PIP처리하여 CRT(60)상으로 다화면이 재생출력되도록 하는 주화면 처리부(20), 상기 주화면 처리부(20)로부터 인가된 수평수직 동기신호를 근거로 주화면 밝기에 대한 ABL전류를 출력하는 편향부(50) 및, 상기 ABL전류를 근거로 상기 주화면 처리부(20)로 인가되는 부화면 영상신호의 전압을 조절하여 부화면 밝기를 조정하는 부화면 보정회로(70)로 구성되어 PIP기능 수행시 텔레비전의 주화면이 어두우면, 자동으로 부화면의 밝기가 보정됨으로써 주/부화면간의 밝기차에 의해 야기되었던 화면 열화요건을 해소하여 PIP모드시 선명한 화질을 제공할 수 있게 된다.According to the present invention, when the main screen is dark when the PIP (Picture In Picture) function of the television is performed, the sub picture brightness correction function is provided in the PIP mode so that the overall picture quality can be improved by correcting the sub picture erection by lowering the signal voltage of the sub screen. It is an object to provide a television, the multi-screen mode switching unit 10 for separating the input composite video signal into a main / sub composite video signal, and the sub-screen separated from the multi-screen mode switching unit 10 input Separated from the sub-screen processing unit 30 for processing a video signal composite video signal, the amplification unit 40 for amplifying the sub-screen video signal processed by a predetermined amplification, and the multi-screen mode switching unit 10 A main screen processing unit 20 and a main screen processing unit 20 to PIP-process the main screen composite video signal and the sub-screen video signal applied from the amplifying unit 40 to reproduce and output the multi-screen on the CRT 60. From A deflection unit 50 for outputting the ABL current for the main screen brightness based on the horizontal and vertical synchronization signals applied from the control unit; and a voltage of the sub-screen image signal applied to the main screen processing unit 20 based on the ABL current. When the main screen of the television is dark when the PIP function is performed, the brightness of the sub screen is automatically corrected so that the brightness of the sub screen is caused by the brightness difference between the main and sub screens. By eliminating the screen deterioration requirement, it is possible to provide clear picture quality in PIP mode.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제 2도는 본 발명의 일실시예에 따른 PIP모드시 부화면 밝기보정기능을 갖춘 텔레비전의 영상처리계통의 구성을 나타낸 도면이다.2 is a diagram illustrating a configuration of an image processing system of a television having a sub-screen brightness correction function in a PIP mode according to an embodiment of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960023419A KR980007568A (en) | 1996-06-25 | 1996-06-25 | Television with sub picture brightness correction function in PIP mode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960023419A KR980007568A (en) | 1996-06-25 | 1996-06-25 | Television with sub picture brightness correction function in PIP mode |
Publications (1)
Publication Number | Publication Date |
---|---|
KR980007568A true KR980007568A (en) | 1998-03-30 |
Family
ID=66287602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960023419A KR980007568A (en) | 1996-06-25 | 1996-06-25 | Television with sub picture brightness correction function in PIP mode |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR980007568A (en) |
-
1996
- 1996-06-25 KR KR1019960023419A patent/KR980007568A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |