Mu nganda zerekana LED, igipimo gisanzwe cyo kugarura no kugarura ibintu byinshi byatangajwe ninganda mubisanzwe bisobanurwa nkibiciro bya 1920HZ na 3840HZ. Uburyo busanzwe bwo gushyira mubikorwa nuburyo bubiri-disiki na PWM. Imikorere yihariye yikibazo niyi ikurikira:
[Double latch driver IC]: 1920HZ igipimo cyo kugarura ubuyanja, 13Byerekana igipimo cyumushatsi, cyubatswe mumikorere yo kurandura umuzimu, imikorere ya voltage ntoya yo gukuraho pigiseli zapfuye nibindi bikorwa;
[PWM umushoferi IC]: 3840HZ igipimo cyo kugarura ubuyanja, 14-16Byerekana ibara ryerekana ibara, ryubatswe mubikorwa byo kurandura umuzimu, gutangira imbaraga nke, no gukuraho pigiseli yapfuye.
Gahunda ya nyuma yo gutwara PWM ifite ibara ryinshi-ryerekana imvugo mugihe cyo gukuba kabiri igipimo cyo kugarura ubuyanja. Imikorere yumuzunguruko hamwe na algorithms zikoreshwa mubicuruzwa nibyinshi kandi bigoye. Mubisanzwe, chip ya shoferi ifata igice kinini cya wafer hamwe nigiciro kinini.
Nyamara, mugihe cyicyorezo cyicyorezo, isi yose ntigihungabana, ifaranga nizindi miterere yubukungu bwo hanze, abakora LED berekana bashaka kugabanya umuvuduko wibiciro, kandi bagashyira ahagaragara 3K igarura ibicuruzwa bya LED, ariko mubyukuri bakoresha 1920HZ kugarura ibikoresho byombi bikurura umushoferi chip Gahunda, mukugabanya umubare wibintu byerekana imizigo hamwe nibindi bipimo byerekana nibipimo byerekana imikorere, muguhana igipimo cya 2880HZ cyo kugarura ubuyanja, kandi ubu bwoko bwikigereranyo cyo kugarura ibintu bikunze kuvugwa nkigipimo cya 3K cyo kugarura ibinyoma kugirango ubone ibinyoma hejuru 3000HZ guhuza PWM nigipimo cyukuri cya 3840HZ cyo kugarura gahunda Gahunda yo gutwara ibinyabiziga itera urujijo abakiriya kandi ikekwa kuba yitiranya abaturage nibicuruzwa bitemewe.
Kuberako mubisanzwe imyanzuro ya 1920X1080 murwego rwo kwerekana yitwa 2K imyanzuro, naho imikemurire ya 3840X2160 nayo isanzwe yitwa 4K imyanzuro. Kubwibyo, igipimo cya 2880HZ cyo kugarura ubuyanja gisanzwe cyitiranya urwego rwa 3K rwo kugarura ubuyanja, kandi ibipimo byubuziranenge bwibishusho bishobora kugerwaho na 3840HZ byukuri ntabwo ari gahunda yubunini.
Iyo ukoresheje amashanyarazi rusange ya LED nka scan ya ecran ya progaramu, hari uburyo butatu bwingenzi bwo kunoza igipimo cyo kugarura amashusho ya scaneri:
1. Kugabanya umubare wibishusho imvi-nini-sima:Mugutanga ubunyangamugayo bwishusho imvi-nini, igihe kuri buri scan yo kurangiza ibara ryikigereranyo cyaragabanijwe, kuburyo inshuro inshuro ecran yaka inshuro nyinshi mugihe kimwe cyongeweho kugirango yongere icyerekezo cyo kugarura icyerekezo.
2. Gabanya ubugari ntarengwa bwa pulse kugirango ugenzure LED:mugabanye LED urumuri rwumwanya umwanya, gabanya uruziga rwibara rya graycale ibara kuri buri scan, kandi wongere inshuro inshuro ecran yaka inshuro nyinshi. Ariko, igihe cyo gusubiza cyama shoferi gakondo ntigishobora kugabanywa Bitabaye ibyo, hazabaho ibintu bidasanzwe nkibara rito ryimyororokere cyangwa ibara ryirabura rito.
3. Gabanya umubare wibikoresho bya shoferi bihujwe murukurikirane:Kurugero, mugukoresha umurongo wa 8 wo gusikana, umubare wibikoresho bya shoferi bihujwe murukurikirane bigomba kuba bike kugirango tumenye neza ko amakuru ashobora koherezwa neza mugihe gito cyo guhinduranya byihuse munsi yikigereranyo cyo hejuru.
Gusikana ecran igomba gutegereza amakuru yumurongo ukurikira kugirango yandike mbere yo guhindura umurongo. Iki gihe ntigishobora kugabanywa (uburebure bwigihe buringaniye numubare wa chip), naho ubundi ecran izerekana amakosa. Nyuma yo gukuramo ibi bihe, LED irashobora gufungura neza. Igihe cyo kumurika kiragabanuka, mugihe rero (1/60 amasegonda), inshuro zose scan zose zishobora gucanwa mubisanzwe ni ntarengwa, kandi igipimo cyo gukoresha LED ntabwo kiri hejuru (reba ishusho hepfo). Mubyongeyeho, igishushanyo nogukoresha byumugenzuzi bigenda bigorana, kandi umurongo mugari wo gutunganya amakuru yimbere ugomba kwiyongera, bigatuma igabanuka ryibikoresho bigabanuka. Mubyongeyeho, umubare wibipimo abakoresha bakeneye gukurikirana byiyongera. Kwitwara nabi.
Isabwa ryubwiza bwibishusho kumasoko ryiyongera umunsi kumunsi. Nubwo ibiyobora byubu bifite ibyiza bya tekinoroji ya S-PWM, haracyari icyuho kidashobora gucika mugukoresha ecran ya scan. Kurugero, ihame ryimikorere ya chip ya S-PWM iriho irerekanwa mumashusho hepfo. Niba chip ya tekinoroji ya S-PWM isanzwe ikoreshwa mugushushanya ecran ya 1: 8 yogusuzuma, mugihe cyimiterere ya 16-bit ya gray nini na PWM ibara inshuro 16MHz, igipimo cyo kugarura amashusho ni 30Hz. Muri 14-bit graycale, igipimo cyo kugarura amashusho ni 120Hz. Nyamara, igipimo cyo kugarura amashusho kigomba kuba byibuze hejuru ya 3000Hz kugirango cyuzuze ibisabwa nijisho ryumuntu kugirango ubuziranenge bwibishusho. Kubwibyo, mugihe agaciro gasabwa kugipimo cyo kugarura amashusho ari 3000Hz, imashini ya LED ya chip ifite imikorere myiza irakenewe kugirango ibyifuzo bishoboke.
Kuvugurura mubisanzwe bisobanurwa ukurikije integer ninshuro igipimo cyisoko rya videwo 60FPS. Muri rusange, 1920HZ yikubye inshuro 32 igipimo cya 60FPS. Byinshi muribi bikoreshwa mugukodesha kwerekana, ni murumuri-mwinshi hamwe n'umurima-mushya. Ikibaho cyibice cyerekana muri 32 scan LED yerekana ibice byurwego rukurikira; 3840HZ ni inshuro 64 igipimo cyikigereranyo cya 60FPS, kandi inyinshi murizo zikoreshwa kuri 64-scan ya LED yerekana ibice byerekana urumuri ruke kandi rwinshi rwo kugarura ibintu kuri LED yo mu nzu.
Nyamara, kwerekana module hashingiwe kumiterere ya 1920HZ ya drayike yongerewe ku gahato kugera kuri 2880HZ, bisaba umwanya wa 4BIT wo gutunganya ibyuma, bikenera guca hejuru yurwego rwo hejuru rwibikorwa byibyuma, kandi bigomba kwigomwa umubare wumunzani. Kugoreka no guhungabana.
Igihe cyo kohereza: Werurwe-31-2023
