Ebifo ebiddugavu byalabika ku ssirini ya TV – ensonga engeri y’okuggyamu amasannyalaze

Waliwo ensonga nnyingi lwaki ebifo ebiddugavu ebiddugavu birabika ku ttivvi. Naye emirundi egisinga, okubeerawo kwazo kulaga okwonooneka kwa matrix. Era tekiteekwa kuba kya makanika. Kisoboka okuba nti difuyiza yasekula olw’obuzibu mu kukola. Era oluusi ekifo ekiddugavu ku ttivvi osobola okukimalawo ggwe kennyini! Naye emirundi egisinga, olina okunoonya obuyambi okuva mu kifo ekikkirizibwa okukola ku by’okukola.

Ebivaako amabala amaddugavu n’ekisiikirize enzirugavu ku matrix ya TV

Omusingi gwa TV yonna ey’omulembe (ne monitor nayo) ye matrix. Era kirimu layers eziwerako naddala:

1. Omusengejja ogukola polarizing . Atereeza okutambuza ekitangaala ekifulumizibwa ettaala y’emabega.
2. Ebirungo ebiyitibwa liquid crystals . Bakola “ekifaananyi” ekisembayo ku ssirini. Langi ya buli pikseli efugibwa ekifo ky’amasannyalaze agakola.
3. Omusengejja ogw’ebweru ogw’okusengejja polarizing . Bwe kiba nga kibula, olwo mu kifo ky’ekifaananyi ekiri ku ssirini wajja kubaawo enzirugavu enzirugavu yokka emabega. Ne bwe kiba nti layeri ya liquid crystals, awamu n’ettaala y’emabega, bikola bulungi.

Era emabega wa matrix waliwo ettaala ya LED emabega. Kiteekebwa kyenkanyi ku nnyonyi yonna eya diagonal eya TV. Nga etteeka, eno ye LED strip, nga buli elementi eyungibwa mu parallel (mu TV ezimu kibeerawo mu series, naye design eno etera obutakozesebwa kati).

Era LEDs nazo zirina eky’obugagga kyazo eky’okukola (ku kigero – okuva ku ssaawa 30 okutuuka ku 50 emitwalo).

Okusinziira ku kino, ensonga enkulu zino wammanga lwaki ebifo ebiddugavu byalabika ku ttivvi ya LCD bisobola okwawulwamu:

• “ebimenyese” pixels ;
• okwonooneka kw’ebyuma ku matrix;
• okulemererwa kw’enkola y’ekitangaala eky’emabega (kirimu butereevu amataala ga LED, wamu ne inverter ekyusa current oba okutereeza voltage yaayo);
• ekikyamu kya layeri y’okusaasaanya;
• ensengeka y’emu ku layeri za matriksi (polarization);
• okulemererwa kwa chip ya vidiyo (graphic processor, evunaanyizibwa ku kukola ku siginiini ya digito, okugikyusa n’okugifulumya mu matrix ya liquid crystal).

“Pikisi eziriko obulemu.”

Ekifaananyi mu matrices za liquid crystal kirimu pixels entonotono. Era mu mbeera nga 95%, ekifo ekiddugavu ku ssirini kiba kiva ku kwonooneka kwazo kwokka. Kirabika ng’obutundutundu obutono obwa langi ez’enjawulo nga tebuliiko halo yonna okwetooloola. Langi yazo esobola okuba kumpi yonna: bbululu, kiragala, enzirugavu, enjeru, emmyufu. Ebyembi okumenyeka ng’okwo tekuyinza kuddabirizibwa naddala ku bwakwo. Naye mu kiseera kye kimu, abakola ebintu bangi mu biragiro by’okukozesa balaga butereevu nti okubeerawo kwa pixels eziwerako “emenyese” kye kisinga okubeerawo. Okugeza ku Samsung, bwe kiba nga ku ssirini zibeera 3 zokka, olwo kino tekitwalibwa nga ggaranti. Bwe kiba nga kisingako, olwo matrix ejja kukyusibwa ku bwereere. Okumanya ebisingawo, tuukirira butereevu abakola eddagala lino.

Kiki ekivaako pixels “emenyese” okulabika ku screen za LCD?

Abakugu bagamba nti zisobola okusikirizibwa oba olw’okwonooneka kw’ebyuma ku ttivvi (okukwata ku matrix), oba okugwa kwa vvulovumenti okw’amangu (naddala, okusukka omuwendo gwayo ogukkirizibwa, okusukka 230 – 250 Volts). N’olwekyo, singa akasannyalazo mu mutimbagano gw’amasannyalaze g’awaka tekanywevu, olwo kirungi okuyunga ttivvi ng’oyita mu kitereeza vvulovumenti ey’ebweru – kino ddala kiyamba okwongera ku bulamu bw’okukola kw’ebyuma.

Matrix okwonooneka kw’ebyuma

Ebiseera ebisinga kirabika ng’ekifo ekiddugavu ekyetooloovu ku ssirini ya ttivvi nga kiriko empenda ezitenkanankana.

Kibaawo ne bwe wabaawo okukubwa obutonotono ku matrix oba kkeesi ya TV!

Kiraga ekiyungo ekiggule ekigaba ekimu ku bitundu bya kirisitaalo ky’amazzi. Tekisoboka kuddaabiriza kumenya ng’okwo. Era bulijjo waliwo akabi nti ebifo ng’ebyo bijja kweyongera mu bunene okumala ekiseera. Kwe kugamba, nga emikisa gya 95%, matriksi mu bbanga ttono ejja kufuuka etali ya kukozesebwa. Era kisaana okumanyibwa nti okukozesa ttivvi ng’erina matrix eyonoonese mu makanika si kirungi. Waliwo okusobola nti waliwo short circuit wakati wa supply circuits za matrix, nga kino nakyo kijja kuleetera inverter okulemererwa, oba wadde GPU. Okuddaabiriza ebifo ng’ebyo ebimenyese tekiba kya mugaso. Kwe kugamba, mu maaso ojja kuba olina okugula ttivvi empya okudda mu kifo ky’enkadde.

Okulemererwa kw’enkola y’ettaala y’emabega

Waliwo enjawulo 2 ez’okumenyawo ng’okwo:

1. Okulemererwa kwa LED yennyini . Kwe kugamba, semiconductor gye kirimu, corny yayokebwa. Tekisoboka kukyusa, mu bifo ebikola ku by’okuweereza bawaayo okukyusa kwokka okujjuvu okw’emiguwa gyonna egya LED-backlight. Naye eno nkola ya bbeeyi ntono nnyo.
2. Okulemererwa kwa inverter, evunaanyizibwa ku kuwa current eri backlight . Mu mbeera eno, LED eyinza mu kusooka obutakola mu zooni emu yokka (okugeza, mu nsonda eya waggulu ku kkono). Naye mu biseera eby’omu maaso, ebitundu ebirala ebirimu amataala mazima ddala bijja kuggyibwako amaanyi.

Kisinga kufaanana ekitundu ekiddugavu nga kiriko halo ekwatagana okusinga ekifo ekiddugavu eky’enjawulo. Naye mu kiseera kye kimu, singa omasamasa ettaala ey’amaanyi ku kitundu ekiddugavu, ojja kulaba ng’ekifaananyi kiragibwa mu ngeri eya bulijjo ku matrix ya liquid crystal. Kimala butayaka. Tolina kukola kintu ku bubwo, kirungi okutuukirira ekifo ekikkirizibwa okuweereza obuyambi amangu ddala nga bwe kisoboka. Era kisaana okukimanya nti singa ettaala y’emabega eyonoonese, buli luvannyuma lwa kiseera esobola okudda engulu ku bwayo. Naye kino kivaamu eky’ekiseera ekitono. Kiba kukakasa kwongerako kwokka nti waliwo okumenya mu circuits z’okugaba LED strips.

Ekikyamu kya layeri y’okusaasaanya

Okuva munda, ekiveera kya ttivvi emabega kisiigibwako oluwuzi olw’enjawulo olusaasaanya, nga mu kulaba lufaananako n’ekyuma ekya bulijjo. Kivunaanyizibwa ku kulaga ekitangaala ekigikuba okuva ku kitangaala kya LED eky’emabega, awamu n’okuva ku layeri ya polarization (eraga ekitangaala ekigigwako). Era singa ebitundu byonna ebiwooma, ebyonooneddwa, ebisekula bikola ku layeri esaasaanya, olwo kino kimala okufaanana ng’ekifo ekiddugavu ku ssirini. By the way, quite often ekikyamu ng’ekyo kirabika oluvannyuma lwa matrix okuddaabirizibwa mu bifo ebitakkirizibwa. Olw’okuba eyo oluwuzi olusaasaana lusiigibwa mu ngalo, kwe kugamba, kumpi tekisoboka kutuuka ku buseeneekerevu obutuukiridde n’obutabaawo kukoona na kuzinga. Mu bifo ebikkirizibwa okuweereza, ng’etteeka, ekibikka kyonna eky’emabega kikyusibwa, . ku kyo basiigibwako oluwuzi olusaasaanya ne mu kkolero. Okusinziira ku kino, emikisa gy’okuddaabiriza okw’omutindo omubi gitereezeddwa ddala.

Delamination ya firimu ekola polarizing

Ebifo bino ebiddugavu ku ssirini ya ttivvi bisobola okubeera kumpi mu ngeri yonna. Ebiseera ebisinga – zibeera zeetooloovu, nga zirina empenda ezenkanankana, awamu n’emisono. Naye nga waliwo okunyigirizibwa okutono, ekifaananyi kiyinza okufuuka ekya bulijjo okumala akaseera katono, nga bwe kiri ku matriksi ekola mu bujjuvu. Kiraga nti firimu ekola polarizing evuddemu. Era kino kibaawo oba olw’okwonooneka kw’ebyuma, oba olw’okukozesa ebintu ebikambwe eby’okwoza okusiimuula ssirini ya ttivvi. Less often – olw’obufumbo obw’ekkolero. Mu TV enkadde, wakyaliwo obuzibu nga polarizing film delamination ebaddewo olw’ebbugumu erisukkiridde erya matrix. Olw’ebbugumu eryali waggulu, kalaamu yamala kusaanuuka! Kino kitera okuva ku kuba nti ttivvi eteekebwa okumpi ne bbugwe oba ebibugumya (era tenyogoga bulungi). Okukitereeza ggwe kennyini tekisoboka.

Okulemererwa kwa chip ya vidiyo

Ekimu ku bisinga obutatera kubaawo era mu kiseera kye kimu ebizibu ebizibu. Chip ya vidiyo esinga kulemererwa olw’ebbugumu erisukkiridde oba obulema mu kkolero. Mu mbeera eno, ebintu eby’enjawulo, ebifo kumpi ebya langi yonna biyinza okulabika ku ssirini. Naye wadde ekifaananyi ekya bulijjo oba menu ya graphical tesobola kufunibwa mu ngeri yonna. TV eddamu okugikoleeza n’okugiggyako “okuva ku outlet” yokka, kubanga mu TV ez’omulembe ne signals okuva mu infrared transmitter nazo zikolebwa GPU. Okumenya kuno era kuggyibwawo mu mbeera z’ekifo eky’okuweerezaamu yokka. Era waliwo akabi nti tekijja kusoboka kulongoosa TV, okuva chips za GPU bwe zitabaawo ku model zonna (okusinziira ku nkola y’omunda ey’omukozi, awamu n’okubeerawo kw’ebikozesebwa mu sipeeya).

Ebirala Ebivaako Enzikiza Ku Bika Bya TV Eby’enjawulo

Mu nkola, ebivaako ebifo kumpi ku ttivvi zonna bye bimu, okuva ensengeka ya matriksi n’enkola y’okulaga ekifaananyi bwe bifaanagana. Naye waliwo abatonotono abajjako:

1. Ku ttivvi za Samsung ezirina matrices za AMOLED, ebifo ebiddugavu biyinza okulaga matrix “burn-in”. Tewali kitangaala kya mugongo, anti buli pixel mu by’ekikugu eba organic LED. Mu kiseera kye kimu, ebifo bino birabika ng’ekifaananyi eky’oluvannyuma (bitera okuyitibwa “emizimu”).
2. Ebifo ebiddugavu ku screen ya LG TV  oluusi biva ku software glitch! Okusingawo, olw’okumenya tekinologiya wa AVI ne MPEG4 codec coding. Mu mbeera ng’ezo, banal firmware update nga okozesa ebikozesebwa ebizimbibwamu ebya TV yennyini kiyamba. Nga olina ekizibu kino, ebifo ebiddugavu birabika mu bifo eby’enjawulo buli lw’ogikoleeza, nga tewali nsengeka yonna ya nsengekera.

By’osobola okukola awaka okutereeza ebizimba n’okuggwaamu amasannyalaze ku ttivvi yo ey’amagezi

Mu mbeera ezitali nnyingi nnyo, ebifo ebiddugavu bibulawo ku bwabyo okumala ekiseera. Kino kibaawo singa zirabika olw’okusalasala kw’oluwuzi lwa polarize nga waliwo okubuguma okutono okwa matriksi. Naye kino kibeera nga 0.5% ku balwadde bonna. Mu mbeera endala, kyetaagisa okukyalira ekifo awaweebwa obuweereza. Era gye kikoma okuba eky’amangu, gye kikoma okuba ekirungi. Obulabe bw’amabala buyinza butya okukendeezebwa? Ebiteeso bino wammanga birina okugobererwa:

• mu ngeri yonna eriwo okugerageranya ebyuma ebiyinza okwonooneka ku ttivvi (okugeza, singa wabaawo abaana abato mu nnyumba, olwo kiba kirungi okuteeka ttivvi ku bbugwe ku buwanvu obutakka wansi wa mita 1.5 – 1.7);
• toteeka ttivvi okumpi ne bbugwe (ekiyingizibwa ekitono ennyo ekyetaagisa, abakola ebyuma kye balaga mu biragiro byabwe, kiri sentimita 15);
• toteekawo kitangaala ekisinga obunene eky’ettaala y’emabega (mu mbeera ezisinga kino tekyetaagisa, era ebitundu 50 – 70% ku ddaala erisinga okwaka lyeyagaza eri abalabi abasinga obungi);
• okuyunga TV ng’oyita mu regulator ya voltage ey’ebweru (kijja kukendeeza ku mikisa gy’okulemererwa kwa inverter ne graphics processor).

Kale, bwe wabaawo ekifo ekiddugavu ku screen ya LCD TV, olwo ekisinga obulungi kwe kusindika ebyuma ku ekifo eky’obuweereza. Mu kiseera kye kimu, mukama yeetaaga okunnyonnyola mu mbeera ki ekikyamu kye kyalabika, ebibaddewo nga bino bikulembedde. Singa okukyusa mu bujjuvu matrix kuba \u200b\u200bwetaagisa, olwo kino kijja kumalawo nga 30 – 70% ku ssente za TV empya ng’eyo (okusinziira ku model entongole). Singa obuzibu buba mu graphics processor, olwo okukyusa kwayo kugula ebitundu nga 30 – 50% ku ssente za TV, naye master tasobola kufuna sipeeya bulijjo.