Muindasitiri yekuratidzira yeLED, mwero wakajairika wekuzorodza uye chiyero chekusimudzira chakaziviswa neindasitiri inowanzotsanangurwa se1920HZ uye 3840HZ mareti ekuzorodza zvichiteerana. Iyo yakajairika nzira dzekuita ndeye mbiri-latch drive uye PWM drive zvichiteerana. Iyo chaiyo kuita kwemhinduro kunonyanya seizvi:
[Double latch driver IC]: 1920HZ refresh rate, 13Bit kuratidza grey scale, yakavakirwa-mukati ghost elimination function, low voltage start function kubvisa akafa pixels nemamwe mabasa;
[PWM mutyairi IC]: 3840HZ refresh rate, 14-16Bit grayscale kuratidza, yakavakirwa-mukati ghost ekubvisa basa, yakaderera voltage kutanga, uye akafa pixel ekubvisa mabasa.
Iyo yekupedzisira PWM yekutyaira chirongwa ine yakawedzera grey-scale kuratidza mune yekupeta kaviri mwero wekuzorodza. Iyo yakabatanidzwa yedunhu mabasa uye algorithms anoshandiswa muchigadzirwa anowedzera uye akaomarara. Nomuzvarirwo, mutyairi chip anotora yakakura wafer unit nzvimbo uye mutengo wakakwira.
Nekudaro, munguva yepashure pedenda, mamiriro epasirese haana kugadzikana, inflation uye mamwe mamiriro ehupfumi ekunze, vagadziri vekuratidzira kwe LED vanoda kudzikamisa mutengo, uye vakatangisa 3K inozorodza zvigadzirwa zve LED, asi chaizvo shandisa 1920HZ yekuzorodza giya mbiri-kumucheto trigger mutyairi. chip Chirongwa, nekudzikisa huwandu hwegreyscale yekurodha mapoinzi uye mamwe maparamita anoshanda uye zviratidzo zvekuita, mukutsinhana neiyo 2880HZ yekumutsiridza mwero, uye rudzi urwu rwekuzorodza chiyero chinowanzo kunzi 3K refresh rate yekunyepa chiyero chekuzorodza chiri pamusoro. 3000HZ kuti ienderane nePWM neyechokwadi 3840HZ yekuzorodza mwero Chirongwa chekutyaira chinovhiringa vatengi uye chinofungidzirwa kuvhiringa veruzhinji nezvigadzirwa zvisina kunaka.
Nekuti kazhinji resolution ye1920X1080 mundima yekuratidzira inonzi 2K resolution, uye resolution ye3840X2160 inowanzonzi 4K resolution. Naizvozvo, iyo 2880HZ yekumutsiridza mwero inongovhiringika kune iyo 3K yekumutsiridza chiyero, uye iwo mufananidzo mhando paramita inogona kuwanikwa neiyo chaiyo 3840HZ kuzorodza haisi kurongeka kwehukuru.
Paunenge uchishandisa yakajairika LED mutyairi chip seyekuvheneka skrini yekushandisa, pane nzira nhatu huru dzekuvandudza chiyero chekuzorodza chekuona chekutarisa skrini:
1. Deredza nhamba yemifananidzo grey-scale sub-minda:Nekupa kutendeseka kwechifananidzo grey-scale, nguva yekuti scan yega yega ipedze grey-scale kuverenga inopfupikiswa, kuitira kuti nhamba yenguva iyo skrini inodzokororwa kuvhenekerwa mukati meimwe furemu nguva inowedzerwa kuti ivandudze chiyero chekuona kwayo.
2. Pfupisa iyo shoma pulse hupamhi kudzora LED conduction:nekudzikisira iyo LED inopenya yemunda nguva, kupfupisa kutenderera kwegreyscale kuverenga kune yega scan, uye kuwedzera nhamba yenguva iyo skrini inodzokororwa kuvhenekerwa. Nekudaro, iyo nguva yekupindura yechinyakare mutyairi machipisi haigone kudzikiswa Zvikasadaro, pachave neabnomemenamena senge yakaderera grey kusaenzana kana yakaderera grey color cast.
3. Deredza huwandu hwemachipisi emutyairi akabatana munhevedzano:Semuenzaniso, mukushandiswa kwe8-line scanning, huwandu hwemachipisi emutyairi akabatana munhevedzano inoda kudzikiswa kuti ive nechokwadi chekuti data rinogona kufambiswa nemazvo mukati menguva shoma yekuchinja kwekukurumidza kwekukurumidza pasi peyero yekuzorodza yakanyanya.
Iyo scanning skrini inoda kumirira kuti data yemutsara unotevera inyorwe isati yachinja mutsara. Iyi nguva haigone kupfupiswa (kureba kwenguva yakaenzana nenhamba yemachipisi), zvikasadaro skrini icharatidza zvikanganiso. Mushure mekubvisa nguva idzi, iyo LED inogona kunyatsobatidzwa. Nguva yekuvhenekesa yakaderedzwa, saka mukati menguva yefuremu (1/60 sec), nhamba yenguva iyo ese ma scans anogona kuwanzo vhenekerwa ishoma, uye mwero wekushandiswa kwe LED hauna kukwirira (ona mufananidzo uri pazasi). Mukuwedzera, dhizaini uye kushandiswa kwemutongi kunowedzera kuoma, uye bandwidth yemukati data yekugadzirisa inoda kuwedzerwa, zvichiita kuti kuderera kwekugadzikana kwehardware. Uye zvakare, huwandu hwema paramita anodiwa nevashandisi kutarisa hunowedzera. Kuita zvisina musoro.
Kudiwa kwemhando yemifananidzo mumusika kuri kuwedzera zuva nezuva. Kunyangwe machipisi emutyairi aripo aine zvakanakira zveS-PWM tekinoroji, kuchine bhodhoro risingagone kuputswa mukushandiswa kwescanning skrini. Semuenzaniso, musimboti wekushanda weiyo iripo S-PWM mutyairi chip inoratidzwa mumufananidzo uri pazasi. Kana iripo S-PWM tekinoroji mutyairi chip ichishandiswa kugadzira 1: 8 scanning sikirini, pasi pemamiriro e16-bit grey scale uye PWM kuverenga frequency ye16MHz, iyo yekuona yekuzorodza mwero ingangoita 30Hz. Mune 14-bit grayscale, iyo yekuona yekuzorodza mwero ndeye 120Hz. Nekudaro, iyo yekuona yekumutsiridza mwero inofanirwa kunge iri pamusoro pe3000Hz kuti isangane nezvinodiwa neziso remunhu pamhando yemufananidzo. Naizvozvo, kana kukosha kwekudiwa kweyero yekuzorodza yekuona iri 3000Hz, machipisi emutyairi e LED ane mabasa ari nani anodiwa kuzadzisa zvinodiwa.
Kuzorodza kazhinji kunotsanangurwa zvinoenderana nenhamba n nguva chiyero cheiyo vhidhiyo sosi 60FPS. Kazhinji, 1920HZ ndiyo 32 times the frame rate ye60FPS. Mazhinji acho anoshandiswa muratidziro yekurenda, iyo inopenya-yakakwirira uye yakakwirira-inozorodza munda. Iyo unit board inoratidza mu32 scans LED inoratidza unit mabhodhi eanotevera mazinga; 3840HZ i64 times the frame rate of 60FPS, uye mazhinji acho anoshandiswa pa64-scan LED display unit board ane kupenya kwakaderera uye high refresh rate pane indoor LED displays.
Nekudaro, iyo module yekuratidzira pahwaro hwe1920HZ drive furemu inowedzerwa nechisimba kusvika 2880HZ, inoda 4BIT hardware yekugadzirisa nzvimbo, inoda kutyora muganho wepamusoro wekushanda kwehardware, uye inoda kubayira huwandu hwegrey zviyero. Kukanganisa uye kusagadzikana.
Nguva yekutumira: Mar-31-2023
