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1、led调试总结(液晶调试总结)Thediodeinthecircuitisalsoavulnerabletype,thebacklightisnotbright,alotofcasesarebrokendiode,2009,09,10(1)LCDmodeParallel:MCUinterface,RGBinterface,VysncinterfaceSerial:SPIinterface,MDDIinterface⑵screencolorTheessenceistheconceptofcolorhistogramisindexstandardofmobilephon
2、eLCDbrightnessintensity,alsoknownasthecolorindexofcurrentmobilephonecolorindexfromlowtohighthreelevels,thelowestcolor,followedbythe256color,4096color,65536color;thehighestis8times・260thousandcolor256=2,8bitcolor,inordertopush16squarelaw,65536color=2,16bittruecolorthatistosay,18times260
3、thousand=2,whichisactually18bittruecolor65536colorhasbeenbasicallysatisfiedthedemandrecognitionofoureyes(3)resolutionTheCRTresolutionandLCDdisplaydifferent,generallycannotbeadjusted,itissetbythemanufacturerandtheprovisionsoftheresolutionreferstothescreenofeachlinehowmanypixels,eachcolu
4、mnnumberofpixelsonthemobilephoneLCDresolutionis176*220QCIFdisplaymodeand240*320QVGAdisplaymodel(4)refreshrateLCDrefreshratereferstothedisplayframerate,i.e.ascreenframerefreshtimerequired,andthescanningspeedandtheabilitytoavoidscreenscreenflickerthatrefreshrateistoolow,canmakeLEDdisplay
5、screenimagecanappeartoflickerorjitter(3)visualangleFromdifferentdirectionstoobserveaclearperspectiveofallcontentonthescreen,andtheLCDisDSTNorTFThaveagreatrelationshipbecausetheformerisbyseanningthescreenonbothsidesofthelightemittingtransistor,whichisonthebackofeachpixellightemittingtra
6、nsistoritself,thecontrastandbrightnessdifference,determinestheirperspectiveonascreendifferentDSTNLCDgenerallyonly60degrees,160degrees,TFT-LCD(4)responsetimeTheresponsetimeofthesmallerthebetter,itreflectstheliquidcrystaldisplayofeachpixelpointoftheinputsignalresponsespeed,whichispixelfr
7、omdarktobrightordarklightswitchbythespeedofresponsetimeisless,theuseratthemotionpicturedoesnotappeartodropshadowtailwillfeelthegeneralreactionrateisdividedintotwoparts:RisingandFalling,andsaidtothesumofthetwoprevail2.interfaceform:(1)parallelmodeAandMCUinterfacesTherearetwomaintypeso
