Mashandisiro anoita LCD skrini uye nzira yekuvhenekesa iyo liquid crystal screen
1. Sarudzaliquid crystal screenkupa voltage
Nhanho inonyanya kukosha usati wadzvanya skrini ndeyekuona kuti mangani mavolts emagetsi skrini, ndiko kuti, mangani mavolts iyo skrini yatinoda kunongedza ndeye, uye kana ichienderana nehardware motherboard. Kana iyo hardware iri 12V uye skrini iri 5V, skrini inopiswa. Inogona kuwanikwa mune general screen specifications.
Ongorora: Iyo skrini yemagetsi ekupa voltage uye iyo skrini backlight voltage ma module maviri akasiyana.
2.Panel liquid crystal screen timing setting
PANEL matanho ekutanga: tanga wabatidza magetsi ePANEL, wozotumira PANEL DATA, wozobatidza mwenje; kutevedzana kwekuvhara kunodzoserwa kumashure. Iyo DELAY nguva inotarwa neMCU software, kana iyo nguva yekumisikidza isina kunaka, pachava nekukasira chena skrini kana skrini.
Tora kuratidza LOGO semuenzaniso. Kutanga kubatidza skrini, kunonoka, uye kutumira LOGO. Panguva ino, izvo zvinoonekwa nemushandisi zvakasviba nekuti backlight haina kuvhurwa. Mushure mekunge LOGO yagadzikana, batidza backlight kuti uone LOGO.
T2 inguva kubva kuT-con power-on kuenda kuLVDS data kubuda, T3 inguva kubva kuLVDS data kubuda kuenda kubacklight on, uye T4 neT5 ndiyo kutevedzana kwesimba-pasi kunoenderana neT2 neT3, uye T7 ndiyo nguva yenguva. pakati peT-con yakadzokororwa simba-pa. Iyo LVDS yekutevedzana yenguva yechidzitiro inonyanya kukosha. Kana isina kuiswa zvakanaka, matambudziko akadai seyakasviba skrini uye inopenya yegirini skrini inobuda. Kune iyo chaiyo yekumisikidza kukosha kweimwe neimwe parameter, ndapota tarisa kune iyo skrini inotsanangurwa.
The backlight power supply kazhinji ndiyo huru magetsi eTV. Mushure mekunge magetsi makuru avhurwa, kufamba kunoda kuita nhevedzano yekutanga mashandiro, saka T2 inogona kuzadzisa zvinodiwa. Nguva yekudzokera kumashure kazhinji inoda kushandiswa pamwe chete neLVDS nguva, uye vane yakajairwa parameter --- backlight switch sign. Panguva ino, T3 inoda kurongeka zvine hungwaru kuti ive nechokwadi chekuti backlight switch chiratidzo inogona kusangana neLVDS nguva uye backlight nguva zvinodiwa.
Iyo liquid crystal screen power-on uye simba-off-time diagrams ndeaya anotevera (kubva pachiratidziro):
1. Hardware
liquid crystal screen input
1. Iyo magetsi inofanira kuenderana nemagetsi emagetsi emagetsi ekuratidzira skrini
2. Kunyangwe iyo nguva yewachi inogadzirwa nekristaro oscillator wedunhu ndeyechokwadi, teerera kune inoshanda crystal oscillator circuit, unofanirwa kutarisa PCB kuti uone kana wiring iri yakarurama.
3. Tarisa uone kana kutevedzana kweseti kwesekirini kuchienderana nekutevedzana kweseta kweiyo skrini.
4. Pane chero shanduko ye waveform papini yekutanga yechidzitiro paunenge uchibatidza, senge SDA, SCL, CS kana WR pini, kana zvisiri, unofanirwa kutarisa kana software yakagadziridzwa nepini yekutanga yechidzitiro.
liquid crystal screen kubuda
1. Kuti HSYNC neVSYNC vane waveform
2. Ingave iyo RGB data pin kana DATA pin inobuda
2. Software
1. Gadzirisa pini yekudzora backlight yeLCD skrini uye uifonere kuti uve nechokwadi chekuti skrini inogona kupenya.
2. Gadzirisa pini reset, pini yekutanga SDA, SCL, CS kana WR yelcd kuratidza skrini, uye RGB kana DATA yekubuda pini.
3. Kana iyo yekrisiti yekrisiti yemvura inoda kuwedzera kwekutanga, fonera iyo yekutanga kodhi yekrini, iyo inopiwa nemupi wekrini. Kana iyo yemvura crystal skrini IC yakatangwa mukati, saka mamwe mamicrocontrollers haafanire kunyora iyo skrini yekutanga kutevedzana, zvikasadaro zvinodikanwa kudzvanya chidzitiro zvinoenderana neruzivo rwunopihwa nemupi wepikicha.
4. Tanga iyo liquid crystal screen debugging screen uye gadzirisa zvidzitiro zvinoyera.
Nguva yekutumira: Sep-26-2023