液晶电视市场及产品应用分析.ppt
平板显示类型 Flat Panel Display (FPD),By Light Emission,Non-Emission,Emission,LCD,By Driving,D-TFD,Active Matrix TFT LCD,Passive Matrix,PDP,FED,OLED,By Materials,a-Si TFT,Poly-Si TFT,SED,AMOLED PMOLED,By Process,HTPS TFT,LTPS TFT,Gas,Phosphor,Organic,By Liquid Crystal,TN LCD,STN LCD,By Projection,HTPS LCD,DLP LCOS,平板显示类型,$USBillions,2009年是为平板显示产业的里程碑。它代表了改造和重新启动的时间。,$130,1998-2001 Cooking,2002-2007 High Growth,2008-2009 Reshape,2010-2016 Stable Growth,30%,$120,25%,$110,20%,$100,15%,$90,10%,$80,5%,$70 $60,0%,$50 $40 $30 $20,We dont want to see this happen. How to find the new momentum?,-5% -10% -15% -20%,$10,-25%,$0,-30%,1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016,CRT,a-Si TFT LCD,LTPS,PDP,PMLCD,OLED,VFD,DLP,LCOS,HTPS,EPD,EL,Display Total,Growth,平板显示产业总收入1998年至2016年,CapacityArea(000m2/year),60,000,50,000,40,000,Turning Point : Sony-Samsung Join venture Turning Point : Gen6 v.s. G5.5 AUO Merged QDI,Turning Point : Chi-Mei Innolux Merge,Next Turning Point: More Consolidation? New Fab in China?,30,000,20,000,10,000,-,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,Samsung CPT,LGD Innolux,Sharp HannStar,IPS-Alpha BOE,AUO SVA,CMO InfoVision,液晶产业的转折点,Turning Point : Financial Crisis Heat Taiwan harder Than Korean,AIO (All-In-One),Window 7 with Touch,E-Book,Phone with Touch Panel,LCD TV With Blue-ray,And LED TV Wireless LCD TV Internet TV 3D Notebook LED Monitor 3D LCD TV 4K*2K Resolution ,液晶产品新应用,手机显示器发展趋势,LCD TV 平板技术道路图,For next several years, several factors drive the growth for LCD TV spec, and reach the so- called “Ultimate LCD TV”,Better display quality driven by FHD,120Hz, 240Hz and new cell design,Slim design by reducing the thickness of backlight or by using LEDs.,Green design for environment friendly., 2006,2007,2008,200910, 2015,Large Size,40”-49”,50”-52”,55”, 57”-60” 60”-72”,Contrast Ratio,2000:1,3000:1,4000:1,5000:1,1080p,1080p (Full HD),4K x 2K,120/100 Hz,120/100 Hz,240 Hz,Ultra Slim,Ultra Slim,LED Backlight,Eco/Green,Lower Power Consumption Environmental Friendly,3D,3D,Low Cost,Monitor Panels,Lower Spec Panels (Brightness, etc.) for Emerging Countries,LCD TV 平板技术道路图,LCD TV 液晶背光趋势,Cost of LED TV are still expensive.,- TV makers think LED BLU should be under 1.2X price of conventional one.,- Technology side, improving LED luminous efficiency has higher priority.,Panel Makers are also implementing many High Transmittance technology,LCD TV 液晶背光趋势,Unit:Millions,2010年LEDTV主要品牌和市场的销售目标,12,60%,10 8 6 4 2 0,LED TV LED %,50% 40% 30% 20% 10% 0%,三星,LGE,SONE,SHARP,PHILIPS,TOSHIBA,Vizio,PANASONIC,CHINA,2010年 LED TV市场,LCD TV 基本结构,LCD TV包括:主板、 PANEL、升压板、电源板、按键板。,LCD TV 基本结构框图,Video Filter,RGB,Panel Controller (Scalar),Micro-controller,OSD,Frame Buffer,LCD Panel,CLK/CTL,18/36-bits or 24/48-bits,Video Decoder,NTSC/PAL S - Video,(Option),PFC+PWM,LVDS or Panel Link I/F,YPbPr,MUX SW,DC-DC,Transformer,LCD TV Power consumption 25”30” : 180W 200W 32”42” : 200W 350W,主板包括：接口控制逻楫（含信号接口， 键板接口，INVERTER接口，电源接口)，信号处理逻辑（含ADC模数转换，定标缩放灰度控制，扫描控制等）MCU,DDC(即插即用）DC-DC转换等。 升压板用于驱动PANEL背灯管（升压板即INVERTER) 。 电源板则提供直流恒压（如：12V DC/3.5A） 给主板及升压板等模块供电。 简单将LCD TV分为两大部分：电源部分和主板与控制部分。,LCD TV 基本结构,LCD TV主电源,Output Rectifier 1,Feedback Block,PFC Control IC,PWM Control IC,Main Switching Block,PFC Block,Bridge Rectifier,Output Rectifier 3,1824V,5V,MOSFET 600V/800v Series Diodes: FR107,LL4148,Bridge Rectifier GBU8X GBU6X,Schottky Rectifier 100V Series 10A / 20A 40V Series 7.5A 45V Series 15A 30V Series 3/6A Regulator LR7805 LR7812,Programmable Shunt regulator LR431A LR431B,Output Rectifier 2,12V,5Vsb,Output Rectifier 4,Standby Power,PFC Control IC Main supplier: ST Fairchild On Sanken ,Standby Low power For stand by Power PWM IC,MOSFET PFC DIODE PFC: 600V fast 500V Series recovery diodes,PWM Control IC Green model high efficiency power IC,由于LCD是低电压工作，而一般市用电网提供的是110V或220V的交流电压，所以需要在显示器上专门配有电源适配器，其作用就是将电网的交流电压转换成直流电压向整个LCD Monitor供电。 一般采用脉宽调制（PWM）型的开关电源，其基本工作原理：交流220V输入电压经过整流滤波电路变成直流电压，再由开关功率管斩波和高频变压器降压，得到高频矩形波电压，经整流滤波后获得所需要的直流输出电压。脉宽调制器是这类开关电源的核心，它能产生频率固定而脉冲宽度可调的驱动信号，控制开关功率管的通断状态，来调节输出电压的高低，达到稳压的目的。,LCD TV电源,某LCD 电源生产商电路图一,LCD TV电源,某LCD 电源生产商电路图二,LCD TV电源,LCD TV电源,某LCD 电源生产商电路图三,主板 由PANEL控制逻辑，灰度系数控制逻辑，DC/DC转换逻辑，传输TTL电平信号到LCD显示模块电路等部分组成。因在主板上各部分对电压要求不一样，也需要电源管理IC。 主要作用：信号及图象处理，面板控制，信号转换，信号检测及过压保护等等。,LCD TV主板及控制,LCD TV主板及控制,INVERTER 将主板送入直流电压转换成1500V-1800V的高压交流电，频率30-50KHZ，电流6-9mA（以上数值是因PANEL的特性参数差异而不同），PANEL的灯管在高压交流电作用下才能被点亮。,LCD-TV 背光驱动INVERTER,Royer Circuit,Controller IC,MCU Input,Lamp,Half Bridge /Push-pull Circuit,Controller IC,MCU Input,Buck-Royer Topology,Half-bridge/Push-Pull Topology,Controller IC,Full Bridge Circuit,MCU Input,Lamp,Full-Bridge Topology,Lamp,MOSFET 30V/10A MOSFET 40V/10A MOSFET LL4148,MOSFET 40V/10A MOSFET 60V/10A MOSFET 60V/10A MOSFET LL4148,MOSFET 30V/10A MOSFET 40V/10A MOSFET 60V/10A MOSFET LL4148,LCD TV,产品应用桥 用在电源上，不同尺寸屏幕电源输出功率不同，桥的型号也有所不同。电流一般使用到3-15A，电压600V。,LCD TV电源,电源上产品应用IC,LCD TV,产品应用IC,LCD TV,产品应用整流二极管 主要用在电源上，整流二极管用量约在二十支左右。,
