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1、平面显示器电子系统设计技术要项,平面显示器,电浆 (Plasma) 背投 (Rear Projection) 液晶穿透式 微机电反射式 硅上液晶反射式 液晶 (LCD) LCD TV是未来的明星工业,Subject,Picture Sound Connection Information Reception Multimedia function,Picture Quality Factors,Brightness Contrast Color Sharpness Viewing Angle Response Time Uniformity Jaggy Jerky,A Typical Pict
2、ure Specification,Screen Size : 30 (76 cm) Visible Screen Size : 75 cm (29,53”) Display : LCD WXGA Active Matrix TFT technology Resolution 1280 x768 (x3) pixels Response time LCD : 16 ms Brightness : 450 cd/m2 Contrast Ratio : 350:1 Viewing Angles : 176H/176V Anti Reflex Coated Screen,Brightness,Mor
3、e backlight,Contrast,Whiter and blacker,Gamma Correction,The detail of black and white field,Color - cross color,Cross-color,Color flesh tone correction,Too healthy,Color white balance & color temperature,Black Body Locus,5300K 6500K 9300K,Color Temperature,Normal,Warm,Cool,Sharpness,More clear edge
4、,Viewing Angle,Good,Bad,Lower contrast, color,Response Time,Tailing,Uniformity,Mura,Jaggy,Jerky 3:2 pull-down,Film mode,Video mode,Artifact,Jerky motion blur,Panel Technology:IPS vs MVA,Source: JPMorgan estimates, December 2003,POST ENHANCE.,PQ Decision Weighting in LCD TV,TUNER,IF,LUMA/ CHROMA SEP,
5、SYNC SEP,CHROMA PROC,LUMA PROC,SCALER,AUDIO PROC,CONTROL,DATA PROC,RF,IF,CVBS,SIF,CS,HS/VS,YUV,RGB,IR/KBD,De-int.,CVBS,S,YPbPr,SCART,PC VGA/DVI,1394,STB DVI/HDMI,LCD panel,480i/576i 480p/576p 1080i 720p,NTSC PAL SECAM,STEREO DECODER,Subject,Picture Sound Connection Information Reception Multimedia f
6、unction,A Typical Audio Specification Example,Sound Power 20 W RMS 40 W Music Power 4 On Board Speakers Separate Headphone Audio line output Optical SPDIF output AC-3 in HDTV broadcasting Dolby Virtual(surrounding process),Virtual Surrounding Process,Good sound can improve visual effect An auxiliary
7、 selling point: SRS BBE Virtual Dolby,Some Real Surrounding Technology,Dolby Pro Logic Dolby Digital DTS THX Surround EX / Dolby Digital EX,Subject,Picture Sound Connection Information Reception Multimedia function,RF connections,NTSC (F-connector) PAL/SECAM (IEC connector),Analog video connections,
8、CVBS S-video YPbPr/YCbCr SCART EIA-J D D1-D5 D-sub,HD support: 480P/1080I/720P,Japan D formats D1: 480I D2: 480P D3: 1080I D4: 720P D5: 1080P,Digital video connections,DVI DVI-I DVI-D DVI-A HDCP (High-speed Data Content Protection) 1394 HDMI,Audio connections,Baseband audio RED: Right channel WHITE:
9、 Left channel Sub-woofer Digital audio Coaxial Optical,Standard Connections,CVBS/S-video,YPbPr,YPbPr(HD),CVBS/S-video,Subject,Picture Sound Connection Information Reception Multimedia function,Closed Caption,Allows the viewer to read TV program dialogue or voice conversations as on screen text,V-chi
10、p,A program content advisory data Respond to the advisory data by blocking content that the viewer finds objectionable FCC approved a program rating system in March 1998 All new TV sets (13 inches and larger) sold within US should have it by January 2000 CC/V-chip For the US, Canada, and Brazil,Tele
11、text,tele - text It is a format to transmit data within a video signal Data rate is a few MBit/s Accepted global standard (WST) Secure delivery data channel Data error checking Low cost Uni-directional From 1 page to 1,000 pages,Teletext Pages,Subject,Picture Sound Connection Information Reception M
12、ultimedia function,TV Color Systems,1. NTSCM NTSC-J NTSC 4.43 2. PALID B, B1, G, HN MNc 3. SECAMD, K, K1, L B, G,World TV Systems,TV Channel Allocation,North America,Japan,UHF,VHF-L,VHF-H,Analog Stereo Sound,BTSC North America, South America, Taiwan EIA-J Japan Zweiton M Korea Zweiton (A2) Germany,S
13、tereo Mono SAP,Digital Stereo Sound,NICAM Near Instantaneous Companded Audio Multiplexer First digital audio transmission Near CD quality for Europe, China, South-east Asia,Various Models by Region,Digital TV,Digitize the transmission to have user get: High quality AV No noise, high definition, real
14、 surrounding More program access Hundreds of program in same spectrum Information service EPG: Electronic Program Guide PPV: Pay Per View Broadband Internet access On-line shopping,World DTV Systems,Pushed by FCC Pulled by HDTV,Pulled by HDTV,Pulled by Multi-channel service,Subject,Picture Sound Con
15、nection Information Reception Multimedia function,VGA Timing Modes,Standard Resolution Refresh-rate VGA 640 x 480 60/75 Hz SVGA 800 x 600 60/75 Hz XGA 1024 x 768 60/75 Hz WXGA 1280 x 768 60/75 Hz WXGA 1280 x 720 60/75 Hz,Add-on Features,Card reader 6-in-1, show the content from DSC media Hard disc Video recording Wireless Any room, any place,LCD TV电子设计所需的基本功夫,硬件设计 模拟及数字电路设计 数字系统与微算机设计 通信系统理论 电磁波原理 数字信号处理 电视学 系统设计 液晶显像原理 色彩学与光学量测 模拟与数字电视系统 系统架构分析与整合,软件设计 微算机程序 算法 计算器组织 实时操作系统 软件工程 电视学,Thank You!,
