KR930001756Y1 - Apparatus for adjusting brightness and color of on screen display characters automatically - Google Patents

Apparatus for adjusting brightness and color of on screen display characters automatically Download PDF

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Publication number
KR930001756Y1
KR930001756Y1 KR2019900018149U KR900018149U KR930001756Y1 KR 930001756 Y1 KR930001756 Y1 KR 930001756Y1 KR 2019900018149 U KR2019900018149 U KR 2019900018149U KR 900018149 U KR900018149 U KR 900018149U KR 930001756 Y1 KR930001756 Y1 KR 930001756Y1
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South Korea
Prior art keywords
brightness
level
display character
color
screen
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KR2019900018149U
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Korean (ko)
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KR920010748U (en
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양재모
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삼성전자 주식회사
강진구
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Priority to KR2019900018149U priority Critical patent/KR930001756Y1/en
Publication of KR920010748U publication Critical patent/KR920010748U/en
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Publication of KR930001756Y1 publication Critical patent/KR930001756Y1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Studio Circuits (AREA)

Abstract

내용 없음.No content.

Description

자막정보표시문자의 밝기 및 색상 자동조절회로Automatic control of brightness and color of caption information display characters

제1도는 본 고안에 따른 자막정보표시문자의 밝기 및 색상자동조절회로.1 is a brightness and color automatic control circuit of the caption information display character according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 플라이백 트랜스포머 20 : 제1검출수단10: flyback transformer 20: first detection means

30 : 완충수단 40 : 제2검출수단 또는 A/D변환기30: buffer means 40: second detection means or A / D converter

50 : 마이크로콤퓨터50: microcomputer

60 : 자막정보표시문자 발생기(또는 OSD문자발생기)60: subtitle information display character generator (or OSD character generator)

70 : 혼합기70: mixer

본 고안은 영상처리장치에 있어서 화면중 일정구역에 자막정보를 표시하는 자막정보표시문자(일명 온스크린 디스플레이(On Screen Display)라고 하고, 이하 OSD문자라 함)회로에 관한 것으로, 특히 주화면과 OSD문자간의 밝기 및 색상을 자동조절하는 회로에 관한 것이다.The present invention relates to a subtitle information display character (also called an On Screen Display, hereinafter referred to as an OSD character) circuit for displaying subtitle information in a certain area of a screen in an image processing apparatus. The present invention relates to a circuit for automatically adjusting brightness and color between OSD characters.

통상적으로 OSD문자나 TV이나 VTR등의 브라운관 같은 화상표시수단상의 일정 구간에 문자의 형태로 발생되는 것으로, 문자발생제어기로부터 문자발생기로 문자발생명령이 인가되면 복합비디오신호에서 분리된 동기신호에 맞추어 문자를 발생시켜 혼합기로 인가하고, 혼합기에서는 비디오신호발생기에서 인가된 신호와상술한 문자발생기에서 인가된 신호를 혼합하여 영상처리를 위한 증폭단으로 전송한 뒤 화면상에 디스플레이시키는 과정을 통해 처리된다. OSD문자의 예를 들면 시청중인 채널이나 시간 및 볼륨의 높낮이 정보등을 들 수 있다.Normally, it is generated in the form of characters in a certain section on OSD display or image display means such as TV or VTR. When a character generation command is applied from the character generator to the character generator, it is synchronized with the sync signal separated from the composite video signal Characters are generated and applied to a mixer, and the mixer is processed through a process of mixing the signals applied from the video signal generator and the signals applied from the above-described character generator, transmitting them to an amplifier stage for image processing, and displaying them on the screen. An example of the OSD text is the channel you are watching, the time and volume information of the volume.

이러한 OSD문자는 주(Main)화면의 밝기 및 색상과는 무관하게 일정한 밝기와 색상으로 정해져 있어, 주화면의 밝기나 색상이 OSD문자의 밝기가 색상과 근접하거나 동일한 경우에는 OSD문자의 식별이 어려운 결점이 있었다. 즉, 주로 OSD문자는 밝은 색을 사용하고 있어 주화면이 어두운 화면에서는 식별이 용이하나 주화면이 밝은 화면에서는 식별이 어려워지는 문제점이 있었다.These OSD characters are set to a constant brightness and color irrespective of the brightness and color of the main screen, so it is difficult to distinguish the OSD characters when the brightness or color of the main screen is close to or the same as the OSD characters. There was a flaw. In other words, the OSD text is mainly used in bright colors, so it is easy to identify the screen on which the main screen is dark, but it is difficult to identify the screen on the bright screen.

따라서 본 고안의 목적은 OSD문자발생시, 주화면의 밝기에 따라 OSD문자의 밝기를 자동조절하여 OSD문자의 식별이 용이하게 하기 위한 회로를 제공함에 있다.Accordingly, an object of the present invention is to provide a circuit for facilitating the identification of OSD characters by automatically adjusting the brightness of the OSD characters according to the brightness of the main screen when the OSD characters are generated.

본 고안의 다른 목적은 주화면의 밝기에 따라 OSD문자의 색상을 자동선택하도록 조절하여 OSD문자의 식별이 용이하게 하기 위한 회로를 제공함에 있다.Another object of the present invention is to provide a circuit for facilitating the identification of OSD characters by adjusting to automatically select the color of the OSD characters according to the brightness of the main screen.

트랜스포머(10)의 ABL단자 전압에 따라 OSD문자의 밝기 자동조절 및 색상자동전환을 할 수 있도록 함으로써, 주화면의 밝기변환에도 OSD문자의 식별이 용이한 이점이 있다.The brightness of the OSD characters can be automatically adjusted and the color can be automatically switched in accordance with the ABL terminal voltage of the transformer 10, so that the OSD characters can be easily identified even when the brightness of the main screen is changed.

Claims (1)

영상신호와 자막정보표시문자를 혼합하는 혼합기(70)를 구비하여 화면의 일정구역에 자막정보를 표시하기 위한 영상처리장치의 자막정보표시문자회로에 있어서, 화면의 평균밝기레벨(APL)에 따라 조절되어 수신되는 영상신호의 전류변화를 검출하여 수신축에 알맞는 밝기로 변환시키기 위하여 상기 영상신호의 빔을 제한하는 제어신호의 레벨을 상기 영상신호의 화면이 밝으면 감소시켜 출력하고 상기 화면 어두우면 증가시켜 출력하는 플라이백트랜스포머(10)와, 상기 플라이백트랜스포머(10)에서 출력되는 상기 제어신호의 레벨을 정전압을 기준으로 검출하기 위한 제1검출수단(20)과, 상기 제1검출수단(20)에서 출력되는 신호를 일정한 레벨로 완충하기 위한 완충수단(30)과, 상기 완충수단에서 출력되는 일정한 레벨을 디지탈신호로 변환하기 위한 A/D변환기(40)와, 상기 영상처리장치의 전기능을 제어함과 더불어 상기 A/D변환기(40)에서 신호변환되어 인가되는 상기 플라이백트랜스포머(10)에서 출력되는 제어신호의 레벨에 따라 자막정보표시문자의 색상선택을 제어하기 위한 마이크로콤퓨터(50)와, 상기 플라이백트랜스포머(10)에서 출력되는 상기 제어신호의 레벨에 따라 자막정보표시문자의 밝기를 조절하는 밝기조절회로와 상기 마이크로콤퓨터(50)에서 출력되는 상기 색상선택 제어신호가 인가되면 상기 색상선택 제어신호에 의하여 선택된 색상신호의 밝기를 상기 밝기조절회로에서 출력되는 신호에 의하여 가변조절하는 제어회로를 포함하여 밝기 및 색상이 조절된 자막정보표시문자를 상기 혼합기(70)로 출력하기 위한 자막정보표시문자발생기(60)를 포함함을 특징으로 하는 자막정보표시문자의 밝기 및 색상자동조절회로.A subtitle information display character circuit of an image processing apparatus for displaying subtitle information in a predetermined region of a screen, comprising a mixer 70 that mixes a video signal and a subtitle information display character, according to an average brightness level (APL) of the screen. In order to detect the current change of the received and adjusted video signal and convert the current signal to a brightness suitable for the receiving axis, the control signal level limiting the beam of the video signal is reduced and outputted when the screen of the video signal is bright, and the screen is dark. A flyback transformer 10 for increasing the surface and outputting the first and second detection means 20 for detecting a level of the control signal output from the flyback transformer 10 on the basis of a constant voltage and the first detection means; A buffer means 30 for buffering the signal output from the (20) to a constant level, A / D for converting a constant level output from the buffer means into a digital signal Subtitle information according to the level of the control signal output from the flyback transformer 10 which is controlled by the ventilation 40 and the A / D converter 40 while controlling all functions of the image processing apparatus. Microcomputer 50 for controlling the color selection of the display character, a brightness control circuit for adjusting the brightness of the subtitle information display character according to the level of the control signal output from the flyback transformer 10 and the microcomputer ( And a control circuit for variably adjusting the brightness of the color signal selected by the color selection control signal when the color selection control signal output from 50) is applied by the signal output from the brightness adjustment circuit. A caption information display character generator (60) for outputting the caption information display character to the mixer (70). Brightness and color automatic control circuit.
KR2019900018149U 1990-11-24 1990-11-24 Apparatus for adjusting brightness and color of on screen display characters automatically KR930001756Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900018149U KR930001756Y1 (en) 1990-11-24 1990-11-24 Apparatus for adjusting brightness and color of on screen display characters automatically

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Application Number Priority Date Filing Date Title
KR2019900018149U KR930001756Y1 (en) 1990-11-24 1990-11-24 Apparatus for adjusting brightness and color of on screen display characters automatically

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KR920010748U KR920010748U (en) 1992-06-17
KR930001756Y1 true KR930001756Y1 (en) 1993-04-12

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