LED Display Basic Knowledge

1. Chii chinonzi LED?
LED ndiyo chidimbu chechiedza emitting diode. Musimboti we LED luminescence tekinoroji ndeyekuti zvimwe semiconductor zvinhu zvinoburitsa mwenje weimwe wavelength kana ikozvino yaiswa. Rudzi urwu rwemagetsi kune chiedza chekushandura kushanda kwakakwirira zvikuru. Kurapa kwemakemikari kwakasiyana-siyana kunogona kuitwa pazvinhu zvinoshandiswa kuwana kupenya kwakasiyana. Uye kutarisa angle LED. Icho chidzitiro chinoratidza zvinyorwa, magirafu, mifananidzo, mifananidzo, makotesheni emusika, mavhidhiyo, masaini evhidhiyo uye rumwe ruzivo nekudzora nzira yekuratidzira ye semiconductor light-emitting diodes.

2. LED kuratidza masikirini zvinosanganisira zvinotevera marudzi.

Yakazara ruvara rwe LED kuratidza . Ruvara rwakazara runodaidzwawo kuti matatu ekutanga mavara, diki diki rekuratidzira rinoumbwa nemavara matatu ekutanga ered, girini, uye bhuruu. Rudzi rwakazara rwe LED skrini inonyanya kushandiswa munhandare dzendege, zviteshi zvechitima, mabhaisikopo, mashopu uye matanho.

Dual color LED kuratidza. Dual color color LED inoratidzira kunyanya ine tsvuku & girini, tsvuku & bhuruu. Pakati pavo, tsvuku & girini ndiyo yakajairika. Zviratidziro zvemavara maviri anoshandiswa zvakanyanya mumari, nharembozha, zvipatara, chengetedzo yeruzhinji, mashopu, mari uye mutero.

Single LED kuratidza. Single color LED inoratidzira ine tsvuku, yero, yegirini, yebhuruu, chena. Single color LED kuratidza inonyanya kushandiswa mumapaki, nzvimbo dzekupaka uye zvitoro zvekutengesa.

Nekuvandudzwa kwemararamiro, zvinodiwa nevanhu zvinoramba zvichiwedzera. Rudzi rumwechete uye maviri mavara e LED anoratidza zvishoma nezvishoma akatsiviwa neakazara mavara e LED kuratidza.

3. Kuumbwa kwekutanga kwechiratidziro.
Chiratidziro che LED chinoumbwa nemakabati e LED (anogona kutsvetwa) uye kadhi redhijitari (kadhi rekutumira uye kadhi rekugamuchira). Naizvozvo, akakodzera huwandu controller uye LED makabati anogona kuita akasiyana saizi maratidziro e LED kuti asangane nezvinodiwa nharaunda dzakasiyana uye akasiyana ekuratidzira zvinodiwa.

4. LED screen general parameters.
Poshi. Zviratidzo zvemuviri
Pixel pikisi
Chinhambwe chiri pakati pepakati pemapikisi akatarisana. (Chikwata: mm)

Density
Huwandu hwemapikisi pachikamu chimwe chete (chikamu: madots/m2). Pane humwe hukama hwekuverenga pakati pehuwandu hwemapikisi uye chinhambwe chiri pakati pemapikisi.
Iyo yekuverenga formula ndeye, density = (1000/pixel pakati chinhambwe).
Iyo yakakwirira density yeChiratidziro che LED, iyo yakajeka mufananidzo uye diki iyo yakanakisa yekuona chinhambwe.

Flatness
Iko kusaenzana kutsauka kwepixels uye LED modules paunenge uchigadzira iyo LED inoratidza skrini. Iyo yakanaka flatness ye LED inoratidzira skrini haisi nyore kuita kuti ruvara rwe LED skrini risaite kana uchiona.

Piri. Zviratidzo zvekushanda kwemagetsi
Grey scale
Iyo yekupenya nhanho inogona kusiyaniswa kubva kune yakasviba kusvika kune yakapenya mune imwecheteyo nhanho yekupenya kweiyo LED kuratidza. Grey scale inonziwo color scale kana grey scale, zvinoreva chiyero chekupenya. Kune tekinoroji yekuratidzira yedhijitari, greyscale ndiyo inogadzirisa huwandu hwemavara anoratidzwa. Kazhinji, kukwirira kwegrey, kupfuma kwemavara anoratidzwa, mufananidzo wacho unowedzera kutetepa, uye zviri nyore kuratidza zvakapfuma.

Iyo grey level inonyanya kuenderana neiyo system's A/D shanduko mabits. Kazhinji yakakamurwa kuita isina greyscale, 8, 16, 32, 64, 128, 256 mazinga nezvimwewo, Iyo yakakwirira yegrey nhanho yeratidziro ye LED, iyo yakapfuma ruvara, uye inopenya ruvara.

Parizvino, kuratidzwa kwe LED kunonyanya kutora 8-bit processing system, kureva, 256 (28) grey mazinga. Manzwisisiro akareruka ndeekuti kune 256 kupenya kushanduka kubva kutema kuenda kuchena. Kushandisa mavara matatu ekutanga eRGB anogona kuumba 256×256×256=16777216 mavara. Izvo zvinowanzonzi 16 mega mavara.

Refresh frame frequency
LED inoratidzira LED kuratidza skrini ruzivo rwekuvandudza frequency.
Kazhinji, iri 25Hz, 30Hz, 50Hz, 60Hz, nezvimwewo. Iyo yakakwirira furemu shanduko frequency, zviri nani kuenderera kwemufananidzo wakashandurwa.

Refresh frequency
Iyo LED inoratidzira inoratidza nhamba yenguva iyo data inodzokororwa kuratidzwa pasekondi.
Inowanzoita 960Hz, 1920Hz, 3840Hz, nezvimwewo. Iyo yakakwirira yero refresh rate, iyo yakanyanya kugadzikana kuratidza mufananidzo. Kana mufananidzo, chiyero chekuvandudza chakasiyana chine musiyano mukuru.

5. Ratidza system
LED vhidhiyo madziro system inoumbwa nezvikamu zvitatu, chiratidzo sosi, control system uye LED kuratidza.
Kudzora sisitimu basa guru ndiko kupinda kwechiratidzo, kutendeuka, maitiro, kutapurirana uye kudzora mufananidzo.
Led skrini inoratidza zviri mukati meiyo chiratidzo sosi.