KR940013182A - Brightness and gradation correction circuit of cathode ray tube display device - Google Patents
Brightness and gradation correction circuit of cathode ray tube display device Download PDFInfo
- Publication number
- KR940013182A KR940013182A KR1019920022789A KR920022789A KR940013182A KR 940013182 A KR940013182 A KR 940013182A KR 1019920022789 A KR1019920022789 A KR 1019920022789A KR 920022789 A KR920022789 A KR 920022789A KR 940013182 A KR940013182 A KR 940013182A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- luminance
- gradation correction
- unit
- brightness
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
이 발명은 다이나믹 포커스신호를 이용한 음극선관 디스플레이장치의 휘도 및 계조 보정회로에 관한 것으로써, 영상신호 증폭부와, 휘도 및 계조 보정수단과, 휘도신호 출력부와, 영상신호 출력부로 구성되어 휘도 및 계조를 동시에 보정할 수 있도록 하였다. 따라서, 대화면 디스플레이장치에서 화면의 중앙은 물론 가장자리에도 균일한 휘도 및 계조신호가 나타나게 되어 선명한 화질을 얻을 수 있다. 이 발명은 음극선관 디스플레이장치 또는 일반 디스플레이장치에서도 사용할 수 있고, 특히 대화면 디스플레이장치나 평면 스크린에 유용하다.The present invention relates to a luminance and gradation correction circuit of a cathode ray tube display device using a dynamic focus signal, and comprises a video signal amplifier, a luminance and gradation correction means, a luminance signal output unit, and an image signal output unit. The gradation can be corrected at the same time. Accordingly, in the large-screen display device, uniform luminance and gradation signals appear at the center as well as the edge of the screen, thereby obtaining clear image quality. The present invention can also be used in cathode ray tube display devices or general display devices, and is particularly useful for large screen displays or flat screens.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 이 발명에 따른 음극선관 디스플레이장치의 휘도 및 계조 보정회로에 따른 일실시예를 나타내는 블록도,1 is a block diagram showing an embodiment according to a luminance and gray scale correction circuit of a cathode ray tube display device according to the present invention;
제2도는 제1도에 따른 상세 회로도,2 is a detailed circuit diagram according to FIG. 1;
제3도는 다이나믹 포커싱을 하지않은 상태의 음극선관 단면도,3 is a cross-sectional view of the cathode ray tube without dynamic focusing,
제4도의 (가) 및 (나)는 휘도 및 계조신호를 보정하기 전과 보정한 후의 상태를 나타내는 특성도,(A) and (b) of FIG. 4 are characteristic charts showing the state before and after the correction of the luminance and the gradation signal;
제5도는 제2도에 따른 다이나믹 포커스신호의 입력 상태를 나타낸 파형도,5 is a waveform diagram showing an input state of a dynamic focus signal according to FIG.
제6도의 (가)∼(라)는 제4도의 (가) 및 (나)에 따른 파형도이다.(A) to (d) of FIG. 6 are waveform diagrams according to (a) and (b) of FIG.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920022789A KR0141119B1 (en) | 1992-11-30 | 1992-11-30 | Luminance compensation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920022789A KR0141119B1 (en) | 1992-11-30 | 1992-11-30 | Luminance compensation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940013182A true KR940013182A (en) | 1994-06-25 |
KR0141119B1 KR0141119B1 (en) | 1998-06-15 |
Family
ID=19344259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920022789A KR0141119B1 (en) | 1992-11-30 | 1992-11-30 | Luminance compensation circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0141119B1 (en) |
-
1992
- 1992-11-30 KR KR1019920022789A patent/KR0141119B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0141119B1 (en) | 1998-06-15 |
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