KR100331838B1 - On screen display apparatus for use flat panel display television as monitor of PC - Google Patents
On screen display apparatus for use flat panel display television as monitor of PC Download PDFInfo
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- KR100331838B1 KR100331838B1 KR1019990035232A KR19990035232A KR100331838B1 KR 100331838 B1 KR100331838 B1 KR 100331838B1 KR 1019990035232 A KR1019990035232 A KR 1019990035232A KR 19990035232 A KR19990035232 A KR 19990035232A KR 100331838 B1 KR100331838 B1 KR 100331838B1
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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
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
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Abstract
본 발명은 모니터 기능 겸용 플랫 패널 디스플레이(FPD;Flat Panel Display) 티브이의 OSD(On Screen Display) 구현장치에 관한 것이다.The present invention relates to an OSD (On Screen Display) implementing apparatus for a flat panel display (FPD) TV with a monitor function.
종래 FPD 티브이에서는 플랫 패널 디스플레이부의 해상도가 SVGA(800×600)/XGA(1024×768)/SXGA(1280×1024) 등으로 증가할 경우에 수평주파수의 증가로 인하여 OSD신호의 해상도가 떨어지는 문제점이 있었다.In the conventional FPD TV, when the resolution of the flat panel display increases to SVGA (800 × 600) / XGA (1024 × 768) / SXGA (1280 × 1024), the resolution of the OSD signal is reduced due to the increase in the horizontal frequency. there was.
본 발명에서는 플랫 패널 디스플레이부의 해상도 증가로 인해 OSD신호의 해상도를 떨어지는 것을 방지하기 위해서 OSD신호가 자막 OSD신호일 경우에는 영상처리부를 통해 실시간으로 자막 OSD신호를 처리하고, 티브이 수상기 화면에 PC신호가 디스플레이된 상태에서 OSD신호가 존재하거나 비자막 OSD신호일 경우에는 OSD발생기에서 플랫 패널 디스플레이부의 수평 및 수직동기신호를 기준으로 상기 OSD신호 및 비자막 OSD신호를 일정신호 포맷으로 변환시켜 OSD신호를 처리하여 OSD의 해상도를 높여 주기 위한 것이다.In the present invention, in order to prevent the resolution of the OSD signal from falling off due to the increase in the resolution of the flat panel display, when the OSD signal is a caption OSD signal, the caption OSD signal is processed in real time through an image processor, and a PC signal is displayed on the TV receiver screen. If the OSD signal is present or is a non-film OSD signal, the OSD generator converts the OSD signal and the non-film OSD signal into a predetermined signal format based on the horizontal and vertical synchronization signals of the flat panel display to process the OSD signal. This is to increase the resolution.
Description
본 발명은 OSD(On Screen Display)의 해상도를 높여 주기 위한 PC의 모니터 기능을 겸한 FPD(Flat Panel Display) 티브이의 OSD 구현장치에 관한 것이다.The present invention relates to an OSD implementation of a flat panel display (FPD) TV which also serves as a monitor function of a PC for increasing the resolution of an on screen display (OSD).
종래 FPD 티브이의 구성은 도 1에 도시된 바와같이, 안테나(ANT)로부터 수신된 티브이신호를 중간주파수(IF) 처리하여 CVBS신호를 출력하는 중간주파처리부(1)와, 상기 중간주파처리부(1)에서 출력된 CVBS신호를 아날로그 R/G/B신호로 처리하는 영상처리부(2)와, 상기 영상처리부(2)에서 출력된 아날로그 R/G/B신호를 디지털 R/G/B신호로 변환하는 A/D변환부(Analog to digital converter)(3)와, 상기 A/D변환부(3)에서 출력된 디지털 R/G/B신호를 플랫 패널 디스플레이부(5)에 맞는 일정신호 포맷으로 더블 스캔(Double Scan)하는 더블 스캔부(4)와, 상기 더블 스캔부(4)에서 출력된 디지털신호를 디스플레이시키는 플랫 패널 디스플레이부(Flat Panel Display)(5)와, 시스템 각 부를 제어하고 OSD R/G/B신호를 출력하는 마이컴(6)을 포함하여 구성된다.As shown in FIG. 1, the conventional FPD TV has an intermediate frequency processor 1 for outputting a CVBS signal by performing an intermediate frequency IF on a TV signal received from an antenna ANT, and the intermediate frequency processor 1. Image processing unit 2 for processing the CVBS signal output from the analog R / G / B signal, and converts the analog R / G / B signal output from the image processing unit 2 to digital R / G / B signal An analog-to-digital converter (3) and a digital R / G / B signal output from the A / D converter (3) in a constant signal format suitable for the flat panel display (5). A double scan unit 4 for double scanning, a flat panel display 5 for displaying a digital signal output from the double scan unit 4, and control each unit of the system And a microcomputer 6 for outputting an R / G / B signal.
상기와 같이 구성된 종래 FPC 티브이의 동작을 도 1을 참조하여 설명하면 다음과 같다.The operation of the conventional FPC TV configured as described above will be described with reference to FIG. 1.
먼저, 안테나(ANT)를 통해 수신된 티브이신호는 중간주파처리부(1)를 통해 중간주파수(IF)로 처리되어 CVBS(Composite Video Baseband Signal)신호로 변환 출력되고, 영상처리부(2)에서는 상기의 CVBS신호를 입력받아 아날로그 R/G/B신호로 변환시킨다.First, the TV signal received through the antenna ANT is processed to an intermediate frequency (IF) through the intermediate frequency processing unit 1 and converted into a CVBS (Composite Video Baseband Signal) signal, and the image processing unit 2 It receives CVBS signal and converts it into analog R / G / B signal.
여기서, 마이컴(6)으로부터 OSD R/G/B신호가 존재할 경우에는 상기 OSD R/G/B신호는 영상처리부(2)로 입력되어 영상처리부(20)에서 아날로그 R/G/B신호와 혼합된후 A/D변환부(3)로 출력된다.When the OSD R / G / B signal is present from the microcomputer 6, the OSD R / G / B signal is input to the image processor 2 and mixed with the analog R / G / B signal by the image processor 20. After that, it is output to the A / D converter 3.
한편, A/D변환부(3)에서는 영상처리부(2)로부터 입력된 아날로그 R/G/B신호를 디지털 R/G/B신호로 변환하고, 더블 스캔부(4)에서는 A/D변환부(3)에서 출력된 디지털 R/G/B신호를 플랫 패널 디스플레이부(5)에 맞는 일정신호 포맷 즉, 2R/2G/2B신호로 더블 스캔한다.On the other hand, the A / D converter 3 converts the analog R / G / B signals input from the image processor 2 into digital R / G / B signals, and the double scan unit 4 converts the A / D converter. The digital R / G / B signal output from (3) is double scanned in a constant signal format that is suitable for the flat panel display unit 5, that is, 2R / 2G / 2B signals.
그리고, 플랫 패널 디스플레이부(5)에서는 더블 스캔부(4)로부터 입력된 디지털 2R/2G/2B신호를 디스플레이함으로써, 선국된 채널의 방송신호가 화면상에 디스플레이되어진다.In the flat panel display unit 5, the digital 2R / 2G / 2B signal input from the double scan unit 4 is displayed, whereby the broadcast signal of the tuned channel is displayed on the screen.
그러나, 상기와 같은 종래 FPD 티브이에서는 플랫 패널 디스플레이부(5)가 VGA(640×480) 해상도를 가질때에만 OSD R/G/B신호가 정상적인 해상도를 가지고 디스플레이되고, 플랫 패널 디스플레이부(5)의 해상도가 SVGA(800×600)/XGA(1024×768)/SXGA(1280×1024) 등으로 증가할 경우에는 수평주파수의 증가로 인하여 OSD R/G/B신호의 해상도가 떨어지는 문제점이 있었다.However, in the conventional FPD TV as described above, the OSD R / G / B signal is displayed with normal resolution only when the flat panel display unit 5 has a VGA (640 × 480) resolution, and the flat panel display unit 5 When the resolution increases to SVGA (800 × 600) / XGA (1024 × 768) / SXGA (1280 × 1024), there is a problem that the resolution of the OSD R / G / B signal falls due to the increase of the horizontal frequency.
본 발명에서는 자막 OSD신호일 경우에는 영상처리부를 거쳐 실시간으로 자막OSD신호를 처리하고, 티브이 수상기 화면에 PC신호가 디스플레이된 상태에서 OSD신호가 존재하거나 비자막 OSD신호일 경우에는 OSD발생기에서 플랫 패널 디스플레이부의 수평 및 수직동기신호를 기준으로 상기 OSD신호 및 비자막 OSD신호를 일정신호 포맷으로 변환시켜 OSD신호를 처리함으로써, OSD신호의 해상도를 높여 주기 위한 것이다.In the present invention, the caption OSD signal is processed in real time through the image processing unit, and the OSD signal is present in the state that the PC signal is displayed on the TV receiver screen or the non-panel OSD signal in the flat panel display unit of the OSD generator The OSD signal is processed by converting the OSD signal and the non-film OSD signal into a predetermined signal format based on horizontal and vertical synchronization signals to process the OSD signal, thereby increasing the resolution of the OSD signal.
도 1은 종래 FPD 티브이의 블럭 구성도를 나타낸 도면1 is a block diagram illustrating a conventional FPD TV.
도 2는 본 발명 모니터 기능 겸용 FPD 티브이의 OSD 구현장치의 블럭 구성도를 나타낸 도면Figure 2 is a block diagram showing the OSD implementation of the present invention monitor function dual FPD TV
본 발명 모니터 기능 겸용 FPD 티브이의 OSD 구현장치의 구성은 도 2에 도시된 바와같이, 안테나(ANT)로부터 수신된 티브이신호를 중간주파수(IF) 처리하여 CVBS신호를 출력하는 중간주파처리부(10)와, 상기 중간주파처리부(10)에서 출력된 CVBS신호를 아날로그 R/G/B신호로 처리하는 영상처리부(20)와, PC로부터 공급되는 PC R/G/B신호를 출력하는 PC신호출력부(30)와, 마이컴(80)의 제어를 받아 상기 영상처리부(20)에서 출력되는 티브이신호 또는 PC신호출력부(30)에서 출력되는 PC신호를 스위칭선택하는 영상스위칭부(40)와, 상기 영상스위칭부(40)에서 스위칭선택된 신호를 디지털신호로 변환하는 A/D변환부(Analog to digital converter)(50)와, 상기 A/D변환부(50)에서 출력된 디지털신호를 플랫 패널 디스플레이부(70)에 맞는 일정신호 포맷으로 변환시켜주는 줌스칼러(Zoom Scaler)부(60)와, 상기 줌스칼러부(60)에서 일정신호 포맷으로 변환된 디지털신호를 디스플레이시키는 플랫 패널 디스플레이부(70)와, 시스템 각 부를 제어하고 OSD정보를 출력하는 마이컴(80)과, 상기 마이컴(80)의 제어를 받아 OSD신호를 플랫 패널 디스플레이부(70)에 맞는 신호포맷으로 변환시키는 OSD발생기(90)를 포함하여 구성된다.As shown in FIG. 2, the OSD implementing apparatus for FPD TV with a monitor function combined with the present invention has an intermediate frequency processor 10 for outputting a CVBS signal by processing IF signal received from an antenna ANT. And an image processing unit 20 for processing the CVBS signal output from the intermediate frequency processing unit 10 as an analog R / G / B signal, and a PC signal output unit for outputting a PC R / G / B signal supplied from a PC. 30 and an image switching unit 40 for switching and switching the TV signal output from the image processing unit 20 or the PC signal output from the PC signal output unit 30 under the control of the microcomputer 80; An analog-to-digital converter 50 for converting the signal selected by the image switching unit 40 to a digital signal, and a digital signal output from the A / D converter 50 is displayed on a flat panel display. Zoom Scaler unit for converting to a predetermined signal format suitable for the unit 70 ( 60), a flat panel display unit 70 for displaying a digital signal converted from the zoom scaler unit 60 into a predetermined signal format, a microcomputer 80 for controlling each unit and outputting OSD information, and the microcomputer Under the control of the (80) is configured to include an OSD generator 90 for converting the OSD signal into a signal format suitable for the flat panel display unit 70.
상기와 같이 구성된 본 발명 모니터 기능 겸용 FPD 티브이의 OSD 구현장치의 작용효과를 도 2를 참조하여 설명하면 다음과 같다.Referring to Figure 2 describes the operation and effect of the OSD implementation of the present invention monitor function combined FPD TV configured as described above is as follows.
먼저, 안테나(ANT)를 통해 수신된 티브이신호는 중간주파처리부(10)를 통해 중간주파수(IF)로 처리되어 CVBS(Composite Video Baseband Signal)신호로 변환 출력되고, 상기 CVBS신호는 영상처리부(20)로 입력되어 아날로그 R/G/B신호로 변환된다.First, the TV signal received through the antenna ANT is processed to an intermediate frequency IF through the intermediate frequency processing unit 10 and converted into a CVBS signal, and the CVBS signal is output to the image processing unit 20. ) And it is converted into analog R / G / B signal.
이때, 사용자가 FPD 티브이 수상기를 티브이 모드로 설정하였을 경우 영상스위칭부(40)에서는 마이컴(80)의 제어를 받아 영상처리부(20)에서 출력된 티브이신호인 아날로그 R/G/B신호를 스위칭하여 A/D변환부(50)로 출력한다.In this case, when the user sets the FPD TV receiver to the TV mode, the image switching unit 40 switches the analog R / G / B signal which is a TV signal output from the image processing unit 20 under the control of the microcomputer 80. Output to A / D conversion section 50.
그리고, A/D변환부(50)에서는 영상스위칭부(40)로부터 입력된 아날로그 R/G/ B신호를 디지털 R/G/B신호로 변환하여 줌스칼러부(50)로 출력한다.The A / D converter 50 converts the analog R / G / B signal input from the image switching unit 40 into a digital R / G / B signal and outputs it to the zoom scaler 50.
이후, 줌스칼러부(60)에서는 상기 A/D변환부(50)에서 출력된 디지털 R/G/B신호를 플랫 패널 디스플레이부(70)에 맞는 일정신호 포맷(Format)으로 변환(Zoomed Digital R/G/B)하고, 플랫 패널 디스플레이부(70)에서는 줌스칼러부(60)로부터 입력된 디지털 R/G/B신호를 디스플레이하게 된다.Thereafter, the zoom scaler 60 converts the digital R / G / B signal output from the A / D converter 50 into a constant signal format suitable for the flat panel display 70 (Zoomed Digital R). / G / B), and the flat panel display 70 displays the digital R / G / B signal input from the zoom scaler 60.
한편, 사용자가 FPD 티브이 수상기를 모니터 모드로 설정하였을 경우에는 영상스위칭부(40)에서는 마이컴(80)의 제어를 받아 PC신호출력부(30)로부터 공급되는 PC의 R/G/B신호를 스위칭한다.Meanwhile, when the user sets the FPD TV receiver to the monitor mode, the image switching unit 40 switches the R / G / B signal of the PC supplied from the PC signal output unit 30 under the control of the microcomputer 80. do.
그러면, A/D변환부(50)에는 PC의 R/G/B신호를 디지털 R/G/B신호로 변환하여 줌스칼러부(60)로 출력하고, 줌스칼러부(60)에서는 입력된 디지탈 신호인 PC R/G/B신호를 플랫 패널 디스플레이부(70)에 맞는 일정신호 포맷으로 변환(Zoomed Digital R/G/B)하며, 플랫 패널 디스플레이부(70)에서는 줌스칼러부(60)에서 일정신호 포맷으로 변환된 PC R/G/B신호를 디스플레이함으로써, 티브이 수상기가 PC의 모니터 기능을 하게 된다.Then, the A / D converter 50 converts the PC's R / G / B signal into a digital R / G / B signal and outputs it to the zoom scaler 60, and the zoom scaler 60 inputs the digital. PC R / G / B signal, which is a signal, is converted into a constant signal format suitable for the flat panel display unit 70 (Zoomed Digital R / G / B), and the zoom panel 60 in the flat panel display unit 70 By displaying the PC R / G / B signal converted to a certain signal format, the TV receiver serves as a monitor of the PC.
한편, 마이컴(80)에서는 OSD(On Screen Display)정보가 존재할 경우 사용자가 상기 OSD신호를 자막신호로 선택했는지 비자막신호로 선택했는지를 판단하여 자막신호로 선택하였으면 자막 OSD R/G/B신호를 영상처리부(20)로 출력한다.On the other hand, the microcomputer 80 determines whether the user selects the OSD signal as the closed caption signal or the non-capacitive signal when the OSD (On Screen Display) information is present, and selects the closed caption OSD R / G / B signal. Is output to the image processor 20.
그 결과 자막 OSD R/G/B신호는 영상처리부(20)에서 아날로그 R/G/B신호와 합성되어 실시간으로 처리되어진다.As a result, the caption OSD R / G / B signal is combined with the analog R / G / B signal by the image processor 20 and processed in real time.
그리고, 사용자가 OSD신호를 비자막신호로 선택하였으면 마이컴(80)에서는 비자막 OSD R/G/B신호를 OSD발생기(90)로 출력한다.If the user selects the OSD signal as the non-film signal, the microcomputer 80 outputs the non-film OSD R / G / B signal to the OSD generator 90.
이때, OSD발생기(90)에서는 플랫 패널 디스플레이부(70)의 수평 및 수직동기신호를 기준으로 마이컴(80)으로부터 입력된 비자막 OSD R/G/B신호를 일정신호 포맷으로 변환하여 줌스칼러부(60)로 출력한다.At this time, the OSD generator 90 converts the non-film OSD R / G / B signal input from the microcomputer 80 into a predetermined signal format based on the horizontal and vertical synchronous signals of the flat panel display unit 70 to zoom in / out the zoom unit. Output to (60).
또한, FPD 티브이 수상기에 PC신호가 디스플레이된 상태에서 OSD신호가 존재할 경우에는 마이컴(80)에서 OSD신호를 OSD발생부(90)로 출력한다.In addition, when the OSD signal is present while the PC signal is displayed on the FPD TV receiver, the microcomputer 80 outputs the OSD signal to the OSD generator 90.
이때, OSD발생기(90)에서는 플랫 패널 디스플레이부(70)의 수평 및 수직동기신호를 기준으로 상기 마이컴(80)으로부터 입력된 OSD R/G/B신호를 일정신호 포맷으로 변환하여 줌스칼러부(60)로 출력한다.At this time, the OSD generator 90 converts the OSD R / G / B signal input from the microcomputer 80 into a predetermined signal format based on the horizontal and vertical synchronization signals of the flat panel display unit 70 to zoom zoom unit ( 60).
즉, 비자막 OSD신호이거나 PC신호 입력일 경우에는 OSD신호를 OSD발생기(90)와 줌스칼러부(60)에서 처리하여 OSD신호를 플랫 패널 디스플레이부(70)에 맞는 신호포맷으로 변환시켜 준다.That is, in case of non-OSD OSD signal or PC signal input, the OSD signal is processed by the OSD generator 90 and the zoom scaler 60 to convert the OSD signal into a signal format suitable for the flat panel display 70.
상기에서 설명한 바와같이, 본 발명에서는 자막 OSD신호는 영상처리부를 통해 실시간으로 처리하고, 비자막 OSD신호 또는 PC신호일 경우에는 OSD발생기와 줌스칼러부에서 OSD신호를 플랫 패널 디스플레이부에 맞는 신호 포맷으로 변환시켜 줌으로써 OSD신호의 해상도를 높여 주게 된다.As described above, in the present invention, the caption OSD signal is processed in real time through the image processor, and in the case of the non-capacity OSD signal or the PC signal, the OSD generator and the zoom scaler are used to convert the OSD signal into a signal format suitable for the flat panel display. By converting, the resolution of the OSD signal is increased.
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| KR1019990035232A KR100331838B1 (en) | 1999-08-24 | 1999-08-24 | On screen display apparatus for use flat panel display television as monitor of PC |
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| KR19980024005A (en) * | 1996-09-04 | 1998-07-06 | 마이클알. 브롬버그 | Flat panel display terminals |
| KR100207315B1 (en) * | 1996-06-28 | 1999-07-15 | 윤종용 | Plate display device |
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| KR100207315B1 (en) * | 1996-06-28 | 1999-07-15 | 윤종용 | Plate display device |
| KR19980024005A (en) * | 1996-09-04 | 1998-07-06 | 마이클알. 브롬버그 | Flat panel display terminals |
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