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Hauv nrig txog kev pom cov zaub tso zis ntaus ntawv rau kev nthuav qhia ntawm cov ntaub ntawv rau nrig txog kev pom los yog tactile txais tos

Apr 21, 2017

Hauv nrig txog kev pom cov zaub

From Wikipedia, cov dawb encyclopedia

Ib tug   hluav taws xob nrig txog kev pom cov zaub,   ncab ib   screen,   yog ib tug   zaub ntaus ntawv   rau kev nthuav qhia ntawm   dluab ,   ntawv nyeem , los yog   video   kis tau hluav taws xob, tsis muaj ua ib tug mus tas cov ntaub ntawv. Hauv nrig txog kev pom qhia muaj xws li   TV poob lawm ,   computer saib , thiab   cov signage . Lawv yog cov tseem ubiquitous nyob rau hauv   mobile xam   daim ntaub ntawv zoo li   ntsiav tshuaj computers ,   smartphones , thiab   ntaub ntawv khoom siv .

txheem

  [hide]

·          1 Classification

·          2 zaub hom ntawm kev soj

·          3 Layout ntawm daim duab hais

·          4 Emission thiab tswj ntawm cov xim

·          5 hais hom

·          6 zaub tsav tsheb hom

·          7 References

·          8 Literature

·          9 Saib kuj

Classification [ edit ]

Hauv nrig txog kev pom qhia tam sim no pom tau qhov sib ntaub ntawv raws li qhov hluav taws xob tswv yim teeb liab (analog los yog cov) yog los ntawm kev emitting teeb (ces lawv hu ua   active qhia) los yog, hloov, los ntawm modulating muaj teeb thaum lub sij hawm tus txheej txheem ntawm thiaj los yog kis tau tus mob (lub teeb modulators yog hu ua   passive qhia).

Hauv nrig txog kev pom qhia


active qhia

passive qhia


tam sim no pom tau qhov sib ntaub ntawv los ntawm   emitting   teeb

tam sim no pom tau qhov sib ntaub ntawv los ntawm   modulating   teeb


nyhuv

Kua siv lead ua zaub   (LCD) +   backlight
(no thaum lawv tseem yog suav tias yog ib tug   active zaub)

LCD

Piv txwv li

LCD TV screen, LCD computer saib

LCD saib (paab)
saib LCD kev faib


nyhuv

Cathodoluminescence

electrophoresis
kuj saib   Hauv daim ntawv

Piv txwv li

Cathode txoj sab ci raj   (CRT)
Teb emission zaub   (Pub)
Nqus fluorescent zaub   (VFD)
Nto conduction electron-emitter zaub   (Tab sis)

Kev tshawb & raug:
E number case hluav taws xob daim ntawv qhia
SiPix Microcup Hauv Ntawv


nyhuv

Electroluminescence

Electrochromism

Piv txwv li

(nyias los yog tuab zaj duab xis) electro-luminescence (EL)
(inorganic los yog organic) lub teeb emitting diode (LED, OLED)

gas paug zaub ( Nixie raj )

Kev tshawb & raug:
ntera NanoChromics Technology


nyhuv

Photoluminescence

Electrowetting

Piv txwv li

Ntshav zaub   vaj huam sib luag (PDP)

Kev tshawb & raug:
Liquavista


nyhuv

Incandescence

Electromechanical tes taws los piav

Piv txwv li

Numitron , ib tug 7-ya txog zauv zaub raj   Numitron website

nrov plig plawg zaub
flip-disk zaub
cov micromirror ntaus ntawv   (DMD)
Interferometric modulator zaub   (IMOD)
FTIR (unipixel)
telescopic pixel zaub


Zaub hom ntawm kev soj [ edit ]

Hauv nrig txog kev pom qhia tau cai ncaj qha (direct saib zaub) los yog lub tso tawm ntaub ntawv yuav tsum npaj rau ib qho screen (transmissive los yog paab screen). Qhov no feem ntau yog tshwm sim nrog me me qhia ntawm ib tug tej yam magnification.

Zaub hom ntawm kev soj

Direct saib zaub

projection zaub

transmissive hom kev lag luam

pem hauv ntej-projection (nrog paab screen)
xws li   video projector

paab hom kev lag luam

rear-projection (nrog transmissive screen)
xws li   rear projection TV screen

transflective hom kev lag luam
(xws li   transflective LCD )

retinal projection   (nrog los sis tsis muaj combiner)
xws li   lub taub hau mounted zaub

Ib tug txawv hom ntawm projection zaub yog cov chav kawm ntawv ntawm " laser projection qhia " qhov twg cov duab yog muaj li sequentially yog ntawm kab los ntawm kab PP los yog sau ntawv ib txhij kiag ib lub sij hawm. Rau cov uas lub hom phiaj yog ib tug beam yog tsim los ntawm peb lasers khiav hauj lwm rau cov thawj xim thiab qhov no beam yog scanned electro-mechanically (galvanometer scanner, micro-daim iav array)) los yog   electro-acousto-optically .

Layout ntawm daim duab hais [ edit ]

Nyob rau hauv tus duab thiab nyob rau hauv kev kho ntawm cov duab hais ntawm ib tug zaub yog taag ntaub ntawv yuav muab tso tawm kom (cov cim, tej yam tshwm sim), yooj yim numerals (7-ya layout) los yog arbitrary nrhiav peev xwm yuav tsim (dot-matrix qhia).

Layout ntawm daim duab hais

Segmented qhia
cim, tooj thiab cov cim ntawm taag puab (tej zaum yuav multiplex nyob)
Cov nram qab no layouts yog paub zoo:
Xya-ya zaub
Kaum plaub-ya zaub
Kaum-ya zaub

Dot-matrix   qhia
sub-pixels cov txheej txheem ntawm nyob rau hauv ib tug tsis tu ncua 2-dimensional array
(multiplex hais yuav tsum tau); arbitrary nrhiav peev xwm yuav tsim thiab tso tawm

Emission thiab tswj ntawm cov xim [ edit ]

Xim yuav tsum generated los ntawm cov xim emission, los ntawm cov xim haum, kis tau tus mob los yog los ntawm cov xim thiaj.

Xim emission thiab kev tswj

additive nws
thawj cov xim   ntxiv mus txog ua lub teeb dawb

rho nws
cov ntxaij lim dej, dyes, pigments (egprinting) Rho (nqus) qhov chaw ntawm lub teeb dawb

sab nqaij daim tawv nws (additive)
xws li rotating thawj xim lim log nyob rau hauv projectors

spatial nws   (additive)
zoo spaced sub-pixels

spatio sab nqaij daim tawv xim nws
ua ke spatial thiab sab nqaij daim tawv nws [1]


arrangement ntawm sub-pixels
rau additive xim nws
saib   sub-pixel npaj 1
saib   sub-pixel npaj 2
saib   sub-pixel npaj 3

rho xim nws tsis yuav tsum tau tshwj xeeb sub-pixel npaj
tag nrho cov Cheebtsam (xws li cov ntxaij lim dej) yuav tsum tau nyob rau hauv tib txoj kev ntawm lub teeb.

Piv txwv:
stripe
delta-nabla
PenTile   kev kho, xws li RGB + Dawb


Hais hom [ edit ]

Txhua sub-pixel ntawm ib tug zaub pab kiag li lawm yuav tsum tau xaiv (nyob) nyob rau hauv thiaj li yuav energized nyob rau hauv ib tug tswj txoj kev.

Hais hom (xaiv ntawm daim duab hais)

direct hais
txhua tus neeg daim duab caij muaj hluav taws xob txuas rau lub tsav tsheb electronics.

multiplexed hais
ob peb daim duab hais muaj ib qho hluav taws xob txuas rau lub tsav tsheb electronics,
eg. kab thiab sab electrodes thaum daim duab hais cov txheej txheem ntawm nyob rau hauv ib tug ob seem matrix.




active matrix hais
active hluav taws xob ntsiab ntxiv nyob rau hauv thiaj li yuav txhim kho xaiv ntawm daim duab hais.

·            nyias-zaj duab xis diodes (TFDs)

·            nyias-zaj duab xis transistors   (TFTs)

·            amorphous silicon (a-Si)

·            polycrystalline silicon (p-Si)

·            monocrystalline silicon

passive matrix hais
lub nonlinearity ntawm cov zaub nyhuv (eg LCD, LED) yog siv los twb paub lawm cov hais ntawm ib tug neeg pixels nyob rau hauv multiplex hais. Nyob rau hauv no hom xwb ib tug heev tsawg tus naj npawb ntawm kab yuav raug hais los ntwm. Nyob rau hauv cov ntaub ntawv ntawm (STN-) LCDs no tshaj plaws yog nyob rau ntawm lub ~ 240, tab sis nyob rau cov nuj nqis ntawm ib tug txiav txim yuav txo tau ntawm zoo.

Lub matrix ntawm active hluav taws xob ntsiab yuav siv nyob rau hauv transmissive hom kev lag luam (high transmittance yuav tsum tau) los yog ib tug uas tsis yog-pob tshab active matrix yuav siv tau rau kev LCDs (xws li   kua siv lead ua rau silicon   (LCOS)). |

Zaub tsav tsheb hom [ edit ]

Tsav hom (ua kom cov duab hais)

voltage tsav tsheb
ua kom cov pixels los ntawm voltage (eg LCD teb los). Yog hais tias tam sim no yog cov uas tsis muaj txaus no hom yuav ua tau lub hauv paus rau qhia nrog heev uas tsis muaj zog uas yuav tsum tau (xws li μW rau LCDs tsis backlight).

tam sim no tsav tsheb
ua kom cov pixels los ntawm hluav taws xob tam sim no (xws li LED).