Ntse TV

Kev tsis ntseeg txog dab tsi tag nrho cov ntawv no txhais tau tias yog ntuj thaum yuav lub TV tshiab. Cov qauv ntse TV muaj cov qauv sib txawv, nrog LED, LCD, OLED, QLED thiab MicroLED cov ntxaij vab tshaus thiab koj yuav tau xaiv qhov twg yog qhov kev xaiv zoo tshaj.

Ntxiv rau tus nqi, nws tsim nyog nkag siab tias txhua lub tshuab ua haujlwm li cas hauv koj lub TV.

Hauv luv luv, nkag siab txog qhov sib txawv ntawm cov qauv ntawm lub vijtsam, lawv qhov zoo thiab qhov teeb meem tseem ceeb uas koj yuav ntsib yog tias koj txiav txim siab yuav ib qho ntawm lawv.

Qhov sib txawv ntawm cov cuab yeej tso saib

Tam sim no muaj ntau lub vaj huam sib luag rau Smart TVs, txhua tus muaj nws tus kheej nta thiab thev naus laus zis. Ntawm no peb qhia koj txhua tus kom koj paub tias qhov twg yog qhov zoo rau koj.

LCD

LCD (Liquid Crystal Display) thev naus laus zis muab lub neej rau lub npe hu ua kua siv lead ua kua. Lawv muaj ib tug nyias iav vaj huam sib luag nrog hluav taws xob tswj muaju nyob rau hauv, ntawm ob daim ntawv pob tshab (uas yog polarizing lim).

Cov kua siv lead ua kua no yog rov qab los ntawm CCFL (fluorescent) teeb. Lub teeb rov qab dawb ua rau lub hlwb ntawm cov xim thawj (ntsuab, liab thiab xiav, RGB nto moo) thiab qhov no yog qhov tsim cov duab xim uas koj pom.

Qhov kev siv ntawm cov hluav taws xob tam sim no uas txhua tus siv lead ua tau txais txhais tau tias nws txoj kev taw qhia, uas tso cai rau lub teeb ntau dua los yog tsawg dua los ntawm cov lim uas tsim los ntawm peb lub sub-pixels.

Nyob rau hauv cov txheej txheem no, transistors tuaj ua si rau ib hom yeeb yaj kiab, uas nws lub npe yog Thin Film Transistor (TFT). Yog vim li cas nws thiaj li pom cov qauv LCD / TFT. Txawm li cas los xij, lub ntsiab lus tsis yog hais txog lwm hom LCD npo, tab sis mus rau ib qho ntawm cov ntxaij vab tshaus LCD.

Lub vijtsam LCD yeej raug kev txom nyem los ntawm ob qhov teeb meem: 1) muaj ntau lab ntawm cov xim sib xyaw ua ke thiab lub vijtsam LCD qee zaum tsis ncaj ncees; 2) dub yeej tsis muaj tseeb, vim hais tias lub iav yuav tsum thaiv tag nrho lub teeb kom tsim tau 100% qhov chaw tsaus, tsuas yog cov thev naus laus zis tsis tuaj yeem ua kom raug, ua rau "grey blacks" lossis sib dua dub.

Ntawm TFT LCD cov ntxaij vab tshaus kuj tseem tuaj yeem muaj teeb meem nrog lub kaum sab xis saib yog tias koj tsis yog 100% tig rau lub vijtsam. Qhov no tsis yog ib qho teeb meem tshwm sim rau LCD, tab sis rau TFT thiab hauv LCD TVs nrog IPS, zoo li LG's, peb muaj qhov pom dav dav.

LED

LED (Lub Teeb Emitting Diode) yog lub teeb-emitting diode. Hauv lwm lo lus, TVs nrog LED cov ntxaij vab tshaus tsis muaj dab tsi ntau dua li cov TV uas nws lub vijtsam LCD (uas yuav lossis tsis yog IPS) muaj lub teeb pom kev zoo uas siv lub teeb pom kev zoo.

Nws lub ntsiab kom zoo dua yog tias nws siv zog tsawg dua li ib txwm LCD vaj huam sib luag. Yog li, LED ua haujlwm zoo ib yam li LCD, tab sis lub teeb siv sib txawv, nrog lub teeb emitting diodes rau cov kua siv lead ua kua. Hloov ntawm tag nrho lub vijtsam tau txais lub teeb, cov dots yog illuminated nyias, uas txhim kho cov ntsiab lus, xim thiab qhov sib piv.

Thov nco ntsoov: 1) Lub LCD TV siv Cold Cathode Fluorescent Lamps (CCFL) los teeb rau tag nrho hauv qab ntawm lub vaj huam sib luag; 2) thaum LED (ib hom LCD) siv cov khoom me me, ua haujlwm zoo dua lub teeb-emitting diodes (LEDs) los teeb lub vaj huam sib luag no.

OLED

Nws yog ib qho uas tau hnov ​​​​tias OLED (Organic Light-Emitting Diode) yog ib qho kev hloov pauv ntawm LED (Lub Teeb Emitting Diode), vim nws yog cov organic diode, cov khoom hloov pauv.

OLEDs, ua tsaug rau cov thev naus laus zis no, tsis txhob siv lub teeb pom kev dav dav rau tag nrho lawv cov pixels, uas ci ntsa iab ntawm tus kheej thaum hluav taws xob dhau los ntawm txhua tus ntawm lawv. Ntawd yog, OLED vaj huam sib luag muaj lawv tus kheej lub teeb tso zis, tsis muaj lub teeb nraub qaum.

Cov txiaj ntsig yog cov xim zoo nkauj dua, ci ntsa iab thiab qhov sib txawv. Raws li txhua pixel muaj kev ywj pheej nyob rau hauv lub emission ntawm lub teeb, thaum lub sij hawm los mus tsim cov xim dub, nws yog txaus los tua lub teeb, uas guarantees "dub dub" thiab ntau zog efficiency. Los ntawm dispensing nrog tag nrho lub teeb vaj huam sib luag, OLED cov ntxaij vab tshaus feem ntau nyias nyias thiab hloov tau yooj yim dua.

Nws ob qhov teeb meem: 1) tus nqi siab, muab tus nqi ntau dua ntawm OLED npo piv rau ib txwm siv LED lossis LCD; 2) Lub TV muaj lub neej luv dua.

Samsung, piv txwv li, thuam kev siv OLED cov ntxaij vab tshaus hauv TV thiab suav tias nws tsim nyog rau cov smartphones (uas hloov sai dua) muab qhov nyiam rau QLED cov ntxaij vab tshaus. Cov neeg siv OLED thev naus laus zis hauv TV yog LG, Sony thiab Panasonic.

QLED

Thaum kawg, peb tuaj rau QLED (los yog QD-LED, Quantum Dot Emitting Diodes) TVs, lwm qhov kev txhim kho ntawm LCD, ib yam li LED. Qhov no yog qhov peb hu ua quantum dot screen: tsis tshua muaj me me semiconductor hais, nws qhov ntev tsis tshaj nanometers hauv txoj kab uas hla. Nws tsis yog tshiab li MicroLED, piv txwv li. Nws thawj daim ntawv thov kev lag luam yog nyob rau nruab nrab-2013.

OLED tus neeg sib tw tseem ceeb, QLED, kuj xav tau lub teeb ci. Nws yog cov pob zeb me me no uas tau txais lub zog thiab emit lub teeb zaus los tsim cov duab ntawm qhov screen, ua rau muaj kev hloov pauv loj ntawm cov xim hauv ib puag ncig nrog lub teeb ntau dua lossis tsawg dua.

Sony (Triluminos) yog ib qho ntawm cov pioneers hauv kev tsim cov quantum dot TVs, LG (uas tiv thaiv OLED) kuj muaj cov ntxaij vab tshaus nrog cov thev naus laus zis no. Hauv Brazil, txawm li cas los xij, nws muaj ntau dua los nrhiav ntau yam ntawm Samsung TVs nrog QLED screen.

LG thiab Samsung tab tom sib ntaus sib tua rau cov neeg siv khoom. Thawj South Kauslim, LG, tiv thaiv: 1) qhov tseeb tshaj plaws dub tones thiab qis zog noj ntawm OLED. Lwm cov Kaus Lim Qab Teb, Samsung, tiv thaiv: 2) QLED qhia ntau cov xim zoo nkauj thiab ci ntsa iab thiab cov ntxaij vab tshaus tiv thaiv "cov nyhuv hluav taws kub" (tsawg dua tsis tshua muaj hauv TV).

Txawm hais tias cov xim dub tsaus, OLED tseem tuaj yeem tso cov cim ntawm cov neeg siv tshuaj ntsuam hnyav thiab cov duab zoo li qub, xws li cov neeg ua yeeb yaj kiab video ntau xyoo. Ntawm qhov tod tes, QLEDs tuaj yeem ua "grey blacks."

Qhov teeb meem tshwm sim tshwj xeeb tshaj yog nyob rau hauv qhov yooj yim tshaj plaws (nyeem pheej yig) TVs. Cov khoom siv kim dua (xws li Q9FN) muab cov thev naus laus zis ntxiv xws li kev dimming hauv zos, uas txhim kho cov teeb pom kev zoo ntawm cov khoom siv los ntawm kev tswj lub teeb rov qab los tso saib "faj dub" dub. Qhov no ua rau nws nyuaj rau kev sib txawv ntawm lawv los ntawm OLED.

microLED

Cov lus cog tseg zaum kawg yog MicroLED. Cov thev naus laus zis tshiab tau cog lus tias yuav coj los ua ke qhov zoo tshaj plaws ntawm LCD thiab OLED, ua ke ntau lab lub teeb pom kev zoo uas tuaj yeem tawm lawv lub teeb. Piv nrog LCD npo, lub zog ua haujlwm thiab qhov sib piv yog qhov zoo dua, thiab ntxiv mus, nws tuaj yeem tso tawm qhov ci ntau dua thiab muaj lub neej ntev dua li OLED.

Los ntawm kev siv cov txheej txheem inorganic (raws li tsis yog cov organic LEDs, uas kav tsawg dua) thiab cov LEDs me me, microLEDs, piv rau OLEDs, tuaj yeem: 1) ci dua thiab kav ntev dua; 2) tsis tshua muaj kub los yog npub.

TFT LCD, IPS thiab TN cov ntxaij vab tshaus: qhov sib txawv

Muaj ib txwm tsis meej pem thaum cov ntsiab lus yog qhov screen, AMOLED lossis LCD. Thiab, tsom ntsoov rau ntawm lub vijtsam LCD, muaj ntau yam kev sib koom ua ke, xws li TFT, IPS lossis TN. Txhua yam ntawm cov acronym no txhais li cas? Thiab hauv kev xyaum, qhov txawv yog dab tsi? Kab lus no piav qhia, hauv txoj kev yooj yim, lub hom phiaj ntawm cov thev naus laus zis yog dab tsi.

Tag nrho cov kev tsis meej pem no tshwm sim, kuv ntseeg, rau kev lag luam thiab keeb kwm vim li cas. Nyob rau hauv cov kev specifications, manufacturers feem ntau (nws tsis yog ib txoj cai) qhia txog lub acronym IPS nyob rau hauv cov khoom uas muaj cov panels.

Raws li cov piv txwv: LG, uas tau twv ntau ntawm cov thev naus laus zis (tsis zoo li Samsung, tsom mus rau AMOLED), txawm tias muab cov nyiaj thwj cim qhia txog IPS vaj huam sib luag ntawm smartphones. Tsis tas li ntawd, cov saib zoo tshaj plaws, xws li Dell UltraSharp thiab Apple Thunderbolt Display, yog IPS.

Ntawm qhov tod tes, cov smartphones uas pheej yig tshaj ib txwm tau (thiab tseem yog) tau pib nrog lub npe TFT cov ntxaij vab tshaus. Sony tau siv los txais yuav cov ntxaij vab tshaus uas tau tshaj tawm tias "TFT" hauv nws cov high-end smartphones kom txog rau thaum Xperia Z1, uas muaj lub vijtsam tsis zoo nrog lub kaum sab xis pom tsawg heev piv rau nws cov neeg sib tw.

coincidentally, thaum lub Xperia Z2 tuaj txog, nws tau tshaj tawm tias "IPS" thiab tsis muaj kev thuam hnyav dua ntawm cov ntxaij vab tshaus ntawm Sony lub smartphones kim dua. Yog li tuaj nrog kuv.

TFT LCD npo yog dab tsi?

Ua ntej tshaj, phau ntawv txhais lus txhais: TFT LCD sawv rau Thin Film Transistor Liquid Crystal Display. Hauv lus Askiv, kuv yuav txhais lo lus txawv txawv li ib yam dab tsi zoo li "thin film transistor raws li kua siv lead ua kua zaub". Qhov ntawd tseem tsis tau hais ntau, yog li cia peb tshem tawm.

LCD uas koj twb paub zoo, txawm tias koj tsis paub nws ua haujlwm li cas. Qhov no yog thev naus laus zis feem ntau yuav siv los ntawm koj lub desktop lossis laptop saib. Cov cuab yeej muaj lub npe hu ua "kua muaju", uas yog cov ntaub ntawv pob tshab uas tuaj yeem ua opaque thaum lawv tau txais hluav taws xob tam sim no.

Cov muaju no nyob hauv qhov screen, uas muaj "pixels", ua los ntawm cov xim liab, ntsuab thiab xiav (tus qauv RGB). Txhua xim ib txwm txhawb 256 lub suab sib txawv. Ua cov nyiaj (2563), uas txhais tau hais tias txhua pixel tuaj yeem tsim ntau dua 16,7 lab xim.

Tab sis ua li cas cov xim ntawm cov kua muaju tsim? Zoo, lawv yuav tsum tau txais cov hluav taws xob tam sim no los ua opaque, thiab cov transistors saib xyuas qhov no: txhua tus yog lub luag haujlwm rau pixel.

Nyob rau sab nraum qab ntawm lub vijtsam LCD yog qhov hu ua backlight, lub teeb dawb uas ua rau lub vijtsam ci. Hauv cov ntsiab lus yooj yim, xav nrog kuv: yog tias tag nrho cov transistors kos tam sim no, cov kua siv lead ua kua ua opaque thiab tiv thaiv kev hla ntawm lub teeb (hauv lwm lo lus, lub vijtsam yuav dub). Yog tias tsis muaj dab tsi tawm, qhov screen yuav dawb.

Qhov no yog qhov twg TFT los ua si. Hauv TFT LCD cov ntxaij vab tshaus, ntau lab tus transistors, uas tswj txhua lub vaj huam sib luag pixels, tau muab tso rau hauv qhov screen los ntawm kev tso ib zaj duab xis nyias ntawm cov ntaub ntawv microscopic ob peb nanometers lossis micrometers tuab (ib txoj hlua ntawm cov plaub hau yog nyob nruab nrab ntawm 60 thiab 120 micrometers tuab. ). Zoo, peb twb paub dab tsi yog "movie" tam sim no nyob rau hauv lub acronym TFT.

TN tuaj qhov twg?

Txog rau thaum xaus ntawm lub xyoo pua xeem, yuav luag tag nrho TFT LCD vaj huam sib luag siv cov txheej txheem hu ua Twisted Nematic (TN) ua haujlwm. Nws lub npe yog vim lub fact tias, nyob rau hauv thiaj li yuav cia lub teeb hla dhau lub pixel (uas yog, tsim cov xim dawb), cov kua siv lead ua kua yog teem nyob rau hauv ib tug twisted qauv. Daim duab no nco txog cov duab DNA uas koj pom hauv tsev kawm ntawv theem siab:

Thaum lub transistor emits hluav taws xob tam sim no, cov qauv "poob sib nrug." Cov kua dej ua kua ua opaque thiab yog li cov pixel hloov dub, los yog qhia cov xim nruab nrab ntawm cov dawb thiab dub, nyob ntawm lub zog siv los ntawm transistor. Saib ntawm daim duab dua thiab pom txoj hauv kev uas cov kua siv lead ua kua yog npaj: perpendicular mus rau substrate.

Tab sis txhua tus paub tias TN-based LCD muaj qee qhov kev txwv. Cov xim tsis tau tsim dua tshiab nrog tib lub fidelity thiab muaj teeb meem nrog lub kaum sab xis saib: yog tias koj tsis tau muab tso rau hauv pem hauv ntej ntawm lub monitor, koj tuaj yeem pom cov xim txawv. Qhov ntxiv tawm ntawm 90 ° lub kaum sab xis koj sawv ntawm lub hauv ntej ntawm lub monitor, cov xim zoo dua.

Qhov txawv ntawm IPS panels?

Tom qab ntawd ib lub tswv yim tshwm sim rau lawv: ua li cas yog tias cov kua siv lead ua tsis tas yuav tsum tau teem caij perpendicularly? Qhov ntawd yog thaum lawv tsim In-Plane Switching (IPS). Nyob rau hauv IPS-raws li LCD vaj huam sib luag, cov kua siv lead ua kua molecules yog teem horizontally, uas yog, parallel rau lub substrate. Hauv lwm lo lus, lawv ib txwm nyob ntawm tib lub dav hlau ("In-Plane", tau txais nws?). Ib daim duab los ntawm Sharp qhia txog qhov no:

Txij li thaum cov kua siv lead ua kua yog ib txwm nyob ze rau hauv IPS, qhov pom lub kaum sab xis xaus rau kev txhim kho thiab cov xim luam tawm muaj kev ntseeg ntau dua. Qhov tsis zoo yog tias cov thev naus laus zis no tseem kim dua los tsim, thiab tsis yog txhua tus neeg tsim khoom txaus siab siv ntau dua ntawm IPS vaj huam sib luag hauv kev tsim cov smartphones yooj yim dua, qhov tseem ceeb yog khaws cov nqi kom tsawg.

Lub ntsiab lus tseem ceeb

Hauv kev txiav txim siab, IPS tsuas yog qhov ntawd: ib txoj hauv kev sib txawv ntawm kev npaj cov kua siv lead ua kua molecules. Dab tsi tsis hloov nrog kev hwm rau TN yog cov transistors, uas tswj cov pixels: lawv tseem koom nrog tib txoj kev, uas yog, tso ua "thin film". Nws ua rau tsis muaj kev nkag siab hais tias IPS screen zoo dua li TFT: nws yuav zoo li hais tias "Ubuntu phem dua Linux".

Yog li, IPS cov ntxaij vab tshaus koj paub kuj siv TFT thev naus laus zis. Qhov tseeb, TFT yog cov txheej txheem dav heev, uas tseem siv rau hauv AMOLED panels. Qhov tseeb ntawm kev paub tias lub vaj huam sib luag yog TFT tsis yog qhov qhia txog nws qhov zoo.

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