Thaum koj saib koj qhov kev nyiam lossis yeeb yaj kiab hauv TV lossis video projector, koj pom dab tsi zoo li cov duab tiav, zoo li daim duab lossis zaj duab xis. Txawm li cas los xij, qhov tshwm sim yog dag.
Yog tias koj tau txais koj ob lub qhov muag ze ntawm lub TV lossis qhov kev tshuaj ntsuam, koj yuav pom nws yog ua los ntawm cov dots me me uas yog kab hauv kab kab rov tav thiab ntsug hla thiab nce thiab nqis ntawm qhov screen.
Pixel yog dab tsi?
Cov dots ntawm TV, video projection screen, PC saib, laptop, lossis txawm tias ntsiav tshuaj thiab cov ntxaij vab tshaus smartphone, raug hu ua pixels.
Ib pixel yog txhais raws li daim duab. Txhua pixel muaj cov ntaub ntawv liab, ntsuab, thiab xiav xim (hu ua subpixels). Cov duab hauv qab no qhia pom qhov ze ntawm subpixels.
Pixels thiab daws teeb meem
Tus naj npawb ntawm pixels uas tuaj yeem tso tawm ntawm lub vijtsam saum npoo txiav txim siab qhov kev daws teeb meem ntawm cov duab pom. Txhawm rau tso saib qhov kev daws teeb meem tshwj xeeb, tus lej ntawm pixels tau txiav txim siab yuav tsum tau khiav hla lub vijtsam kab rov tav thiab nce thiab nqis ntawm lub vijtsam ntsug, teem rau kab thiab kab.
Txhawm rau txiav txim siab tag nrho cov pixels npog tag nrho cov npo saum npoo, koj muab cov lej ntawm kab rov tav pixels hauv ib kab nrog cov lej ntawm ntsug pixels hauv ib kab. Tag nrho cov no yog hu ua pixel ntom.
Ntawm no yog qee qhov piv txwv ntawm pixel ntom rau cov kev daws teeb meem uas feem ntau pom hauv TVs niaj hnub no (LCD, Plasma, OLED) thiab video projectors (LCD, DLP):
| Kev daws teeb meem | Kab rov tav Pixel suav | Vertical Pixel suav | Pixel ntom (tag nrho Pixel suav pom) |
| 480i/p | 720 | 480 | 345, 600 |
| 720p | 1, 280 | 720 | 921, 600 |
| 768p | 1, 366 | 768 | 1, 049, 088 |
| 1080i/p | 1,920 | 1, 080 | 2,073,600 |
| 4K (Consumer Standard) | 3,840 | 2, 160 | 8, 294, 400 |
| 4K (Xim Standard) | 4,096 | 2, 160 | 8, 847, 360 |
| 8K | 7, 680 | 4, 320 | 33, 177, 600 |
Pixel ntom thiab npo loj
Ntxiv rau qhov pixel ceev (kev daws teeb meem), muaj lwm qhov yuav tsum tau xav txog: qhov loj ntawm lub vijtsam uas qhia cov pixels.
Txawm hais tias qhov screen loj npaum li cas, kab rov tav / ntsug pixel suav thiab pixel ceev tsis hloov rau ib qho kev daws teeb meem tshwj xeeb. Yog tias koj muaj 1080p TV, ib txwm muaj 1, 920 pixels khiav hla lub vijtsam kab rov tav, ib kab, thiab 1, 080 pixels khiav nce thiab nqis ntawm lub vijtsam ntsug, ib kab. Qhov no ua rau lub pixel ntom ntawm kwv yees li 2.1 lab.
A 32-nti TV uas tso saib 1080p daws teeb meem muaj tib tus lej pixels li 55-nti 1080p TV. Tib yam siv rau video projectors. Lub 1080p video projector yuav tso saib tib lub pixels ntawm 80 lossis 200-nti npo.
Pixels ib nti
Txawm tias tus lej ntawm pixels nyob tsis tu ncua rau qhov tshwj xeeb pixel ceev thoob plaws txhua qhov screen loj, qhov hloov pauv yog tus naj npawb ntawm pixels-ib-inch.
Raws li lub vijtsam loj dua, cov pixels ib tus zuj zus yuav tsum loj dua, lossis qhov chaw nruab nrab ntawm cov pixels nce ntxiv, txhawm rau sau lub vijtsam nrog tus lej ntawm pixels rau qhov kev daws teeb meem tshwj xeeb. Koj tuaj yeem suav cov pixels ib nti rau qhov kev daws teeb meem tshwj xeeb / kev sib raug zoo ntawm lub vijtsam.
TVs vs Video Projectors
Nrog rau cov yeeb yaj kiab video, cov duab pixels ib nti rau ib lub projector tshwj xeeb tuaj yeem sib txawv nyob ntawm qhov loj me siv. Tsis zoo li TVs uas muaj qhov loj me ntawm qhov screen zoo li qub (ib lub TV 50-nti yog ib txwm yog 50-nti TV), cov yeeb yaj kiab video tuaj yeem tso saib cov duab hauv ntau qhov ntau thiab tsawg, nyob ntawm qhov projector lub lens tsim thiab qhov deb ntawm qhov projector muab tso rau ntawm ib qho screen. npo lossis phab ntsa.
Nrog 4K projectors, muaj ntau txoj hauv kev yuav ua li cas cov duab tso tawm ntawm lub vijtsam uas tseem cuam tshuam rau lub vijtsam loj, pixel ceev, thiab pixels ib nti kev sib raug zoo.
TV thiab Video Projector Duab - Ntau dua li Pixels
Txawm hais tias pixels yog lub hauv paus ntawm yuav ua li cas lub TV duab muab tso ua ke, muaj lwm yam uas yuav tsum tau saib zoo zoo TV lossis video projector dluab. Cov no suav nrog qhov ci, qhov sib txawv, xim, xim, xim kub, thiab lwm yam teeb tsa.
Tsuas yog vim lub TV lossis cov duab pom muaj ntau pixels, tsis txhais tau tias koj yuav pom cov duab zoo tshaj plaws.
