Kuwunika kwa mitundu ya mawonekedwe ndi matanthauzidwe a mawonekedwe a Tft Display
Chidule chachidule cha mawonekedwe owonetsera a Tft monga I2C, SPI, UART, RGB, LVDS, MIPI, EDP, ndi DP
Tft Lcd Screen mainstream display interface
Mawonekedwe a LCD: mawonekedwe a SPI, mawonekedwe a I2C, mawonekedwe a UART, mawonekedwe a RGB, mawonekedwe a LVDS, mawonekedwe a MIPI, mawonekedwe a MDDI, mawonekedwe a HDMI, mawonekedwe a eDP
MDDI (Mobile Display Digital Interface) ndi mawonekedwe amtundu wamafoni am'manja ndi zina zotero.
Mawonekedwe apakompyuta: DP, HDMI, DVI, VGA ndi mitundu ina ya 4 yolumikizira.Onetsani kusanja kwa chingwe: DP> HDMI> DVI> VGA.Pakati pawo, VGA ndi chizindikiro cha analogi, chomwe chimachotsedwa ndi mawonekedwe akuluakulu tsopano.DVI, HDMI, ndi DP zonse ndi zizindikiro za digito, zomwe ndi mawonekedwe amakono.
1. Tft Lcd Screen RGB mawonekedwe
(1) Tanthauzo la mawonekedwe
Mtundu wa Tft Display RGB ndi mtundu wamtundu pamsika.Iwo akamagwira kusintha njira zitatu mtundu wofiira (R), wobiriwira (G), ndi buluu (B) ndi superimposing iwo wina ndi mzake kupeza mitundu yosiyanasiyana., RGB ndi mtundu womwe umayimira njira zitatu zofiira, zobiriwira, ndi zabuluu.Muyezo umenewu umaphatikizapo pafupifupi mitundu yonse imene maso a munthu angaone.Ndi imodzi mwa machitidwe amtundu omwe amagwiritsidwa ntchito kwambiri pakali pano.
Tft Onetsani VGA chizindikiro ndi chizindikiro cha RGB
Lcd Screen RGB: Njira zolembera utoto zimatchedwa "malo amtundu" kapena "gamut".M'mawu osavuta, "malo amtundu" amtundu uliwonse padziko lapansi angatanthauzidwe ngati nambala yokhazikika kapena yosinthika.RGB (yofiira, yobiriwira, yabuluu) ndi amodzi mwa malo ambiri amitundu.Ndi njira yolembera iyi, mtundu uliwonse ukhoza kuyimiridwa ndi mitundu itatu - mphamvu ya zofiira, zobiriwira, ndi zabuluu.Lcd Display RGB ndiye chiwembu chodziwika bwino mukajambula ndikuwonetsa zithunzi zamitundu.
Mapangidwe a chizindikiro cha Lcd Display VGA amagawidwa m'mitundu isanu: RGBHV, yomwe ndi mitundu itatu yoyambirira yofiira, yobiriwira ndi yabuluu, ndi mizere yolumikizana ndi mizere.The Lcd Screen VGA kufala mtunda ndi waufupi kwambiri.Kuti atumize mtunda wautali muukadaulo weniweni, anthu amachotsa chingwe cha Lcd Display VGA, kulekanitsa ma siginecha asanu a RGBHV, ndikumatumiza ndi zingwe zisanu za coaxial.Njira yopatsirayi imatchedwa kufala kwa Lcd Display RGB.Ndi mwambo Chizindikiro ichi chimatchedwanso chizindikiro cha Lcd Screen RGB.
Mwanjira ina, palibe kusiyana pakati pa RGB ndi VGA.
Makompyuta ambiri ndi zida zowonetsera zakunja zimalumikizidwa kudzera pa mawonekedwe a analogi Lcd Screen VGA, ndipo chidziwitso chazithunzi chopangidwa ndi digito mkati mwa kompyuta chimasinthidwa kukhala R, G, B zizindikiro zitatu zoyambirira zamtundu ndi mzere ndi gawo ndi chosinthira digito / analogi mu graphics khadi.Synchronous sign, chizindikirocho chimatumizidwa ku chipangizo chowonetsera kudzera pa chingwe.Pazida zowonetsera analogi, monga oyang'anira analoji a CRT, chizindikirocho chimatumizidwa mwachindunji kugawo lofananira loyendetsa kuyendetsa ndikuwongolera chubu chazithunzi kuti apange zithunzi.Pazida zowonetsera digito monga LCD ndi DLP, chosinthira chofananira cha A/D (analog/digital) chiyenera kukonzedwa mu chipangizo chowonetsera kuti chisinthe chizindikiro cha analogi kukhala chizindikiro cha digito.Pambuyo pa kutembenuka kwa D/A ndi A/D2, zina mwazithunzi zimatayika.
Chifukwa chake, mawonekedwe azithunzi a chipangizo chowonetsera pogwiritsa ntchito mawonekedwe a Lcd Display DVI ndiabwinoko.Khadi lojambula nthawi zambiri limagwiritsa ntchito mawonekedwe a DVD-I, kuti athe kulumikizidwa ndi mawonekedwe wamba a Lcd Display VGA kudzera pa adaputala.Chowunikira chokhala ndi mawonekedwe a DVI nthawi zambiri chimagwiritsa ntchito mawonekedwe a DVI-D.
(2) Mtundu wa mawonekedwe: a.Kufanana kwa RGB b.Zithunzi za RGB
3) Mawonekedwe a Chiyankhulo
a.The mawonekedwe zambiri 3.3V mlingo
b.Kulunzanitsa kofunikira
c.Zithunzi zazithunzi ziyenera kutsitsimutsidwa nthawi zonse
d.Nthawi yoyenera iyenera kukonzedwa
Parallel RGB Interface
Seri RGB Interface
4) Kusamvana kwakukulu komanso pafupipafupi koloko
a.Kufanana kwa RGB
Kusamvana: 1920 * 1080
Mafupipafupi a wotchi: 1920*1080*60*1.2 = 149MHZ
b.Zithunzi za RGB
Kusamvana: 800 * 480
Mafupipafupi a wotchi: 800*3*480*60*1.2 = 83MHZ
2. LVDS mawonekedwe
(1) Tanthauzo la mawonekedwe
Ips Lcd LVDS, Low Voltage Differential Signaling, ndi mawonekedwe otsika amagetsi osiyanitsira ma sigino.Ndi njira yotumizira ma siginecha ya digito yomwe idapangidwa ndi kampani yaku America NS kuti igonjetse zofooka zakugwiritsa ntchito mphamvu zazikulu komanso kusokoneza kwakukulu kwamagetsi kwa EMI potumiza deta yotsika kwambiri mulingo wa TTL.
Mawonekedwe otulutsa a Ips Lcd LVDS amagwiritsa ntchito kusinthasintha kwamagetsi otsika kwambiri (pafupifupi 350mV) kuti atumize deta kudzera mosiyanasiyana pamayendedwe awiri a PCB kapena zingwe ziwiri zofananira, ndiko kuti, kutumiza ma siginecha otsika kwambiri.Pogwiritsa ntchito mawonekedwe otulutsa a Ips Lcd LVDS, chizindikirocho chimatha kufalitsidwa pa mzere wosiyana wa PCB kapena chingwe chokhazikika pamlingo wa mazana angapo Mbit / s.Chifukwa cha kutsika kwamagetsi komanso kutsika kwapakali pano, phokoso lochepa komanso kugwiritsa ntchito mphamvu pang'ono kumachitika.
2) Mtundu wa mawonekedwe
a.6-bit LVDS linanena bungwe mawonekedwe
Mu mawonekedwe a mawonekedwewa, kutumiza kwa njira imodzi kumatengedwa, ndipo chizindikiro chilichonse chamtundu uliwonse chimagwiritsa ntchito deta ya 6-bit, deta yonse ya 18-bit RGB, motero imatchedwanso mawonekedwe a 18-bit kapena 18-bit LVDS.
b.Wapawiri 6-bit LVDS linanena bungwe mawonekedwe
Mu mawonekedwe awa, njira ziwiri zimatengedwa, ndipo chizindikiro chilichonse choyambirira chimagwiritsa ntchito deta ya 6-bit, yomwe deta yosamvetseka ndi 18-bit, data yofanana ndi 18-bit, ndi 36-bit yonse. RGB deta, kotero imatchedwanso 36-bit kapena 36-bit LVDS mawonekedwe.
c.Single 8-bit LVDS linanena bungwe mawonekedwe
Mu mawonekedwe a mawonekedwewa, kutumiza kwa njira imodzi kumatengedwa, ndipo chizindikiro chilichonse chamtundu uliwonse chimagwiritsa ntchito deta ya 8-bit, deta yonse ya 24-bit RGB, motero imatchedwanso mawonekedwe a 24-bit kapena 24-bit LVDS.
d.Wapawiri 8-bit LVDS linanena bungwe mawonekedwe
Mu mawonekedwe awa, njira ziwiri zimatengedwa, ndipo chizindikiro chilichonse choyambirira chimagwiritsa ntchito deta ya 8-bit, yomwe deta yosamvetseka ndi 24-bit, data yofanana ndi 24-bit, ndi 48-bit yonse. Deta ya RGB imatchedwanso mawonekedwe a 48-bit kapena 48-bit LVDS.
3) Mawonekedwe a Chiyankhulo
a.Liwiro lalikulu (nthawi zambiri 655Mbps)
b.Kutsika kwamagetsi, kugwiritsa ntchito mphamvu zochepa, EMI yochepa (swing 350mv)
c.Kukhoza kwamphamvu kotsutsa kusokoneza, chizindikiro chosiyana
(4) Kutsimikiza
a.Njira imodzi: 1280*800@60
1366*768@60
b.Njira ziwiri: 1920 * 1080@60
3. Ips Lcd MIPI mawonekedwe
(1) Kutanthauzira kwa Ips Lcd MPI
Ips Lcd MIPI Alliance yafotokoza njira zolumikizirana kuti zikhazikitse mawonekedwe amkati a zida zam'manja monga makamera, Liquid Crystal Display, ma basebands, ndi ma radio frequency interfaces, motero amakulitsa kusinthasintha kwa kapangidwe kake ndikuchepetsa mtengo, kapangidwe kake, kugwiritsa ntchito mphamvu, ndi EMI.
2) Mawonekedwe a Liquid Crystal Display MIPI
a.Kuthamanga kwakukulu: 1Gbps/Lane, 4Gbps throughput
b.Kugwiritsa ntchito mphamvu zochepa: 200mV kusinthasintha kosiyana, 200mv wamba voteji
c.Kuletsa phokoso
d.Mapini ochepa, mawonekedwe osavuta a PCB
(3) Kutsimikiza
MIPI-DSI: 2048*1536@60fps
4) MIPI-DSI mode
a.Command Mode
Mogwirizana ndi MIPI-DBI-2 ya mawonekedwe ofanana, ndi Frame Buffer, njira yosinthira chinsalu potengera Command set ya DCS ndi yofanana ndi chophimba cha CPU.
b.Mawonekedwe a Kanema
Mogwirizana ndi MIPI-DPI-2 ya mawonekedwe ofanana, chophimba chotsitsimutsa chimachokera pakuwongolera nthawi, mofanana ndi mawonekedwe a Liquid Crystal Display RGB synchronous screen.
(5) Njira yogwirira ntchito
a.Njira yogwirira ntchito
Gwiritsani Ntchito Phukusi Lalitali Lolemba la DCS kuti mutsitsimutse GRAM.
Lamulo la DCS la paketi yoyamba ya chimango chilichonse ndi kulemba_memory_start kuti mukwaniritse kulumikizana kwa chimango chilichonse.
b.Momwe kanema amagwirira ntchito
Gwiritsani ntchito paketi yolumikizira kuti mulumikizane ndi nthawi, ndi paketi ya Pixel kuti muzindikire kutsitsimutsa kwa Liquid Crystal Display.Malo opanda kanthu akhoza kukhala osagwirizana, ndipo chimango chilichonse chiyenera kutha ndi LP.
4. Liquid Crystal Sonyezani HDMI mawonekedwe
(1) Tanthauzo la mawonekedwe
a.Mawonekedwe apamwamba a Multimedia Interface
b.Mawonekedwe a digito, kufalitsa makanema ndi zomvera nthawi imodzi
c.Kutumiza kwa data yosakanizidwa yamavidiyo ndi data yotsatiridwa / yosakanizidwa ya digito
(2) Mbiri yachitukuko
a.Mu April 2002, makampani asanu ndi awiri kuphatikizapo Hitachi, Panasonic, Philips, Silicon Image, sony, Thomson, ndi Toshiba adakhazikitsa bungwe la HDMI ndipo anayamba kupanga.
Kutanthawuza mulingo watsopano woperekedwa pamakanema a digito/mawu.
b.Mu December 2002, HDMI 1.0 inatulutsidwa
c.Mu Ogasiti 2005, HDMI 1.2 idatulutsidwa
d.Mu June 2006, HDMI 1.3 inatulutsidwa
e.Mu Novembala 2009, HDMI 1.4 idatulutsidwa
f.Mu Seputembala 2013, HDMI 2.0 idatulutsidwa
3) Zinthu za HDMI
a.TMDS
Kusintha Kocheperako Chizindikiro Chosiyana
8bit ~ 10bit DC kusungitsa koyenera
Deta ya 10bit imafalitsidwa koloko iliyonse
b.EDID ndi DDC
Zindikirani kugwirizana kokha pakati pa zipangizo
c.Kusamutsa Video ndi Audio
Mtengo wotsika, kulumikizana kosavuta
d.HDCP
Kutetezedwa Kwazinthu Zapamwamba Zapamwamba Za digito
Kodi 4 zolumikizira zodziwika bwino zamakompyuta: VGA, DVI, HDMI, ndi DP?
Mabwenzi ena nthawi zambiri amadandaula kuti ndi mawonekedwe ati omwe ali abwino kwambiri pakompyuta, kaya chingwe cha deta chomwe chimagwiritsidwa ntchito ndi polojekiti yanga ndi yabwino kwambiri, kaya imathandizira kutanthauzira kwapamwamba, etc. Ndipotu, chingwe cha deta sichofunikira kwambiri, malinga ngati monga mavabodi / makadi ojambula pamakompyuta anu amabwera nawo, ndi oyenera ndipo kwenikweni samakhudza zomwe mwakumana nazo.Ponena za mawonekedwe owonetsera omwe ali abwinoko, ndiye mfundo yake.
Pakadali pano, mawonekedwe omwe amawunikira makompyuta amaphatikizapo DP, HDMI, DVI, ndi VGA.Onetsani kusanja kwa chingwe: DP> HDMI> DVI> VGA.Pakati pawo, VGA ndi chizindikiro cha analogi, chomwe chimachotsedwa ndi mawonekedwe akuluakulu tsopano.DVI, HDMI, ndi DP zonse ndi zizindikiro za digito, zomwe ndi mawonekedwe amakono.
VGA mawonekedwe
VGA (Video Graphics Array) ndi njira yotumizira mavidiyo yomwe inayambitsidwa ndi IBM pamodzi ndi makina a PS / 2 mu 1987. Ili ndi ubwino wa kusamvana kwakukulu, kuthamanga kwachangu komanso mitundu yolemera, ndipo yakhala ikugwiritsidwa ntchito kwambiri pazithunzi zamitundu.Imathandiza plugging otentha, koma siligwirizana kufala Audio.
Mawonekedwe a VGA ndi omwe amapezeka kwambiri, omwe ndi mtundu womwe ma monitor athu anthawi zonse amalumikizidwa ndi makompyuta omwe ali nawo.Mawonekedwe a VGA ndi mawonekedwe a D-mtundu wokhala ndi zikhomo 15 zonse, zogawidwa m'mizere itatu, zisanu pamzere uliwonse.Ndipo mawonekedwe a VGA ali ndi mphamvu zowonjezera ndipo amatha kusinthidwa mosavuta ndi mawonekedwe a DVI.Kuyambitsa mawonekedwe a VGA ndi motere:
DVI mawonekedwe
digito kanema mawonekedwe
DVI ndi mawonekedwe apamwamba, koma opanda zomvera, ndiye kuti, chingwe cha kanema cha DVI chimangotumiza zizindikiro zazithunzi, koma sichimatumiza zizindikiro.Mawonekedwe a mawonekedwe akuwonetsedwa pansipa:
DVI mawonekedwe ali 3 mitundu ndi 5 specifications, ndi mawonekedwe terminal mawonekedwe ndi 39.5mm×15.13mm.Mitundu itatuyi ikuphatikiza mawonekedwe a DVI-A, DVI-D ndi DVI-I.
DVI-D imangokhala ndi mawonekedwe a digito, ndipo DVI-I ili ndi mawonekedwe a digito ndi analogi.Pakadali pano, DVI-D ndiye ntchito yayikulu.Nthawi yomweyo, DVI-D ndi DVI-I ali ndi njira imodzi (Single Link) ndi njira ziwiri (Dual Link).Kawirikawiri, zomwe timawona nthawi zambiri ndi njira imodzi yokha, ndipo mtengo wa njira ziwirizi ndizokwera kwambiri, choncho ndi zipangizo zamakono zokha zomwe zilipo, ndipo zimakhala zovuta kwa ogula wamba kuziwona.DVI-A ndi mulingo wotumizira wa analogi, womwe umatha kuwoneka mu ma CRT akuluakulu azithunzi.Komabe, chifukwa ilibe kusiyana kofunikira kuchokera ku VGA ndipo magwiridwe ake siwokwera, DVI-A yasiyidwa.
HDMI mawonekedwe
HDMI
HDMI imatha kufalitsa zithunzi zodziwika bwino komanso ma audio.Nthawi zambiri, TV imalumikizidwa ndi nyumba, ndipo imakhala ndi zoletsa zamphamvu.Ndikoyenera kutchula kuti mawonekedwe a makina amakono, monga kuyendetsa galimoto, ndi HDMI.
Ubwino wa mawonekedwe a HDMI HDMI sichingangokwaniritsidwe ndi 1080P, komanso imathandizira mawonekedwe amtundu wa digito monga DVD Audio, ndikuthandizira ma 96kHz amawu eyiti kapena stereo 192kHz kufalitsa kwa digito.
HDMI imathandizira EDID ndi DDC2B, kotero zida zomwe zili ndi HDMI zimakhala ndi "plug and play".Gwero lazizindikiro ndi chipangizo chowonetsera "chingokambirana" ndikusankha mtundu woyenera kwambiri wamakanema/mawu.
DP mawonekedwe
Mawonekedwe a digito a HD
DisplayPort ndi mawonekedwe apamwamba kwambiri owonetsera digito, omwe amatha kulumikizidwa ndi kompyuta ndi chowunikira, kapena kompyuta ndi zisudzo zakunyumba.DisplayPort yapambana kuthandizidwa ndi zimphona zamakampani monga AMD, Intel, NVIDIA, Dell, HP, Philips, Samsung, ndi zina zambiri, ndipo ndi yaulere kugwiritsa ntchito.
Pali mitundu iwiri yolumikizira kunja kwa DisplayPort: imodzi ndi mtundu wokhazikika, wofanana ndi USB, HDMI ndi zolumikizira zina;ina ndi yotsika kwambiri, makamaka ya mapulogalamu omwe ali ndi malo ochepa olumikizirana, monga makompyuta owonda kwambiri.
Mawonekedwe a DP amatha kumveka ngati mtundu wowonjezera wa HDMI, womwe uli wamphamvu kwambiri pakufalitsa ma audio ndi makanema.
Nthawi yotumiza: Sep-06-2023