TFT LCD回路设计架构及元件介绍.pdf

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1、迴路教育訓練1OutlineBlockDiagramofLCDModuleTFTLCDDrivingIntroduction元件功能說明FRC介紹Timing介紹DualGate簡介Q&A2BlockDiagramofLCDModuleGIC1156WB111366×768×3GIC2GateDriverGIC3S-PWBSIC1SIC2SIC3Source.TCONDriver.DC/DC140.GammaCircuitDC/DCTCONVrefLED零件面朝上Driver.LEDDrive

2、r3TFTLCDDrivingIntroductionSourceDriver畫素電極reivrDteaGClcdCstorageCgd4TFT基本驅動波形Gatedriver電壓TvVghTgSourcedriver電壓Vsh△VpVdhVCVCOMVslVdl畫素電極電壓VglFrameNFrameN+1負極性正極性5元件功能說明SourceDriverGateDriverS-PWB(TCON、DC/DC、GammaCircuitLEDDriver)6SourceDriverInterface:T

3、TL/RSDS/mini-LVDS/CMDIBits:6/8Channel:384/402/420/480/642/684/720Operationvoltage:2.5/3.3VOperationfrequency:max.90MHzAnalogypower:8~11/13.5/16.5Gammareferencevoltage:10/14/18Gammacurve:normalwhite/normalblackChargingsharingfunction:Repairlinefunction:Pack

4、age:TCP/COF/COG7BlockDiagramofSourceICSTHCLKHShiftRegisterDataLineBufferLPLevelShifterD/AConverterOutputBufferSTHDataS1S2S3S4S5S6LPS1(Analog)PanelS2(Analog)8R-String&DAC1.利用內阻R-String產生各階階調電壓2.利用DAC選擇其中一個階調電壓輸出至面板9ChargeSharingChargesharingcontrolsignal(LP

5、)OddoutputEvenoutput減少S-IC內OP消耗電流10GateDriverDriverscheme:2levelChannel:240/256/300/512Operationdigitalvoltage:2.5/3.3VAnalogyvoltagerange:max.35/40/45VOperationfrequency:max.200KHzOEfunction:XONfunction:Package:TCP/COF/COG11BlockDiagramofGateICG1G2ShiftLe

6、velOutputG3PanelRegisterShifterBufferSTVSTVCLKVCLKVG1G212S-PWB主要功能為接收前端訊號並驅動TFT-LCD元件包含TCON、DC/DC、GammaCircuit、LEDDriver13TCONResolution：XGA/SXGA/WXGA/UXGAInputInterface：TTL/LVDSOutputInterface：TTL/RSDS/mini-LVDSBits:6/8Operationvoltage:2.5/3.3VOperationfr

7、equency:max.90MHzPackage：QFN48/TQFP64/TQFP100/TQFP/12814BlockDiagramofTCONSTHCLKHDataLVDSRxLogicTXLPSTVCLKVLVDSCLKLVDSRAG0R5R4R3R2R1R0LVDSRBB1B0G5G4G3G2G1LVDSRCDEVSHSB5B4B3B2LVDSRD-B7B6G7G6R7R615LVDSDataMapping8BitsLVDSCLKLVDSRAG0R5R4R3R2R1R0LVDSRBB1B0G5G4

8、G3G2G1LVDSRCDEVSHSB5B4B3B2LVDSRD-B7B6G7G6R7R66BitsLVDSCLKLVDSRAG0R5R4R3R2R1R0LVDSRBB1B0G5G4G3G2G1LVDSRCDEVSHSB5B4B3B216TCON若動作頻率超過90MHz，需選擇DualI/O的TCON以降低頻率。Example1：154WB04解析度為1280X800，其動作頻率為68.9MHz，故用Single