Kev Txheeb Xyuas Ntawm Cov Zoo Tshaj thiab Cov Kev Tsis Zoo Ntawm Cov Kev Sib Tham Cov Sab Nraud Thiab Cov Kev Sib Tham Txog Kev Txhim Kho
Jul 17, 2018
Sab hauv-LED teeb pom kev zoo yog ib yam khoom ntawm kev nraaj feem ntau siv nyob rau hauv peb lub tuam txhab. Nws tseem yog ib qho ntawm feem ntau dav siv LED backlights nyob rau hauv lub backlight thiab qhov ncaj-lit LED backlight. Dab tsi yog cov yam ntxwv ntawm lub sab nrauv LED rov qab, qhov twg yog qhov zoo thiab qhov tsis zoo, thiab dab tsi tuaj yeem khees me ntsis, ntawm no Xingyuhe Electronics ua ib qho kev ntsuam xyuas.
Kev soj ntsuam ntawm cov kev zoo thiab qhov tsis zoo ntawm sab nkag teb chaws LED backlight module
zoo dua
1. Txuag tau them tsawg dua los siv tsawg dua ntawm LED tuag
2. Nws muaj peev xwm tsim lub cev nyias thiab ci lub cev, yog li ntawd lub TV TV LCD TV tsis tas yuav tsum tau nruab nrog LED modules ntawm lub tsheb, tab sis muab tso rau sab, uas tuaj yeem txo qhov zuag qhia tag nrho ntawm qhov screen, thiab tsim ib tug thinner LCD-backlit LCD TV. Yam tuaj.
Disadvantage
1. Kev sib koom ua haujlwm ntawm cov pob hluav taws xob thiab lub teeb daim ntawv qhia yuav ua kom tau zoo tuaj;
2. Nws yog qhov nyuaj thaum siv rau cov loj loj;
3. Kev tswj lub zos tsis tuaj yeem ua tau.
4. Traditional sab-nkag LED backlight module qauv
Cov qauv ntawm ib txwm sab hauv LED backlight module
Cov qauv ntawm cov khoom siv sab nraud ntawm sab nraum qab rooj teeb muaj xws li lub teeb ci LED yog muab pov tseg rau ntawm ib sab ntawm lub teeb qhia lub phaj, thiab ib qho chaw mesh yog tsim rau hauv qab ntu ntawm lub teeb qhia daim ntawv qhia. Lub teeb uas tawm hauv lub teeb ci tawm ntawm lub pob hluav taws xob ua ke tau muab tso rau hauv lub teeb daim ntawv qhia thiab tawm mus rau cov kua siv ua kua siv los ntawm kev xav thiab tawg ntawm daim ntawv thiab lub ntsiab lus.
Lub cev tsis zoo
Rau cov me-nkag LED backlight module, lub teeb tawm ntawm LED chip tsis tuaj yeem nkag mus rau lub teeb qhia daim phiaj. Ntawm qhov one hand, ib feem ntawm lub teeb (lub kaum sab xis loj ntawm lub teeb, kwv yees li 20% -30%, nyob ntawm pob qauv) yog vim muaj tag nrho cov kev xam phaj. Yuav tsis raug tso tawm ntawm lub teeb tawm ntawm qhov chaw ntawm lub pob. Ntawm lwm qhov txhais tau tias, txawm tias lub teeb tawm ntawm lub teeb ci ntawm cov pob LED tau raug ib ntus, lub teeb tsis tuaj yeem nkag mus rau lub teeb qhia ntawm lub teeb vim tias qhov teeb meem ntawm qhov teeb meem nto ntawm lub teeb qhia daim phiaj, raws li muaj nyob hauv daim duab . Lub coupling thiab efficiency ntawm LED pob thiab lub teeb qhia ntawv phom yuav tsum tau ntxiv dua.
Daim duab 1 seem pom
Sab-LED rov qab txoj kev txhim kho
1. Txhim kho qhov kev sib koom tes ntawm cov pob hluav taws xob pob thiab lub teeb qhia daim phiaj
Yuav kom tag nrho lub teeb tawm ntawm lub teeb nti ntawm LED chip nkag rau lub teeb ci ntsa hlau, lub teeb ci ntsa iab ntawm lub hnab pob 102 yog adhered mus rau lub teeb ntes teeb ntawm lub teeb qhia cov phaj los ntawm siv cov kua nplaum 210, raws li muaj nyob rau hauv daim duab 2. Cov ciaj ciam ntawm lub silica gel, cov kua nplaum tshauv thiab lub teeb qhia ntawm lub teeb pob ntawm LED cov dej kom zoo tib yam, yog li ntawd, tsis tshuav tag nrho tsis muaj tag nrho sab hauv ntawm lub teeb tawm ntawm cov pob hluav taws xob, thiab muaj tsis tshua muaj kev xav ntawm qhov teeb meem ntawm qhov teeb meem ntawm lub teeb qhia lub phaj, thiab tag nrho tag nrho ntawm lub teeb tawm ntawm cov roj teeb nkag mus rau hauv lub teeb qhia daim phiaj, thiab kev sib koom tes txuas ntxiv. Txog li 100%. Tsis tas li ntawd, vim tsis muaj tag nrho txoj kev rov los, qhov loj lub teeb pom kev ntawm lub LED nti kuj nkag mus rau hauv lub teeb qhia daim ntawv qhia, thiab lub uniformity ntawm ci ci tau yooj yim.
Daim duab 2 seem pom
Paub zoo:
(1) Kev sib koom ua ke ntawm cov pob LED thiab lub teeb qhia cov ntawv qhia tau zoo tuaj.
(2) Lub teeb tawm ntawm lub teeb hluav taws xob ntawm lub teeb pob muaj zog yog nce ntawm 20% -30%.
(3) Cov cua sov uas tau tsim los ntawm txhua lub pob LED yog txo los ntawm 8% -13%.
(4) Thaum lub sijhawm zoo tib yam, cov naj npawb ntawm cov khoom siv ntawm cov siv LED yog txo los ntawm kwv yees li 16% -23%, uas txo cov nqi.
(5) Tag nrho cov tshav kub kub ntawm LED backlight module yog txo los ntawm kwv yees li 23% -33%.
(6) Kev siv hluav taws xob tsawg dua li ntawm 16% -23%.
(7) Lub teeb-emitting lub kaum ntse ntse ntawm lub pob pob muaj zog.
2. Lub teeb qhia phau ntawv nrog V-groove rau cov TV loj loj
Sab nraum qab LED teeb nrig nrog V-groove lub teeb qhia tso cai rau cov poj niam backlights yuav siv los ntawm cov loj loj cov duab tsis tas yuav tsum tau rau siab dua ci ntsa iab chips.
V-shaped zawj 402 yog tsim nyob rau ntawm ib nrab ntawm cov teeb ntawm phau teeb qhia 401, thiab LED lub teeb qhov chaw 408b muab pov tseg rau hauv ib qho chaw sib thooj rau V-shaped zawj nyob hauv qab ntawm lub teeb daim ntawv qhia. Thaum lub teeb 425 tawm ntawm cov teeb ci hluav taws xob LED nthuav dav, daim V-shaped zis 402 yog txhij txhua. Thiaj xav, thiaj li ua rau sab ntawm lub teeb qhia phaj kis, saib cov duab 3a thiab 3b. LED teeb ci tau muab qhov teeb meem mus rau hauv qab ntawm lub teeb qhia cov lus qhia kom ua rau lub teeb pom kev zoo.
Daim duab 3a sab saum toj pom
Daim duab 3b pom ntawm seem
Daim duab 3c qhia tau hais tias tus qauv ntawm V-grooves 402a, 402b, thiab 402c yog teem rau hauv kev siv khaub lig rau kev siv loj loj.
Daim duab 3c sab saum toj
Daim duab 3d qhia tau hais tias tus qauv ntawm qhov qauv ntawm daim duab 3c.
Daim duab 3d schematic
Paub zoo:
(1) Muaj feem xyuam rau cov khoom loj loj.
(2) Thinning. Lub thickness ntawm SMD LED pob yuav 0.7 hli, thiab PCB thickness yuav 1 hli. Yog li ntawd, lub thickness ntawm LED backlight module tsuas yog 1.7 hli loj dua lub thickness ntawm cov tshuaj ntsuab sab-nkag LED backlight module.
(3) Qhov hluav taws xob qhov hluav taws xob ntawm lub teeb pob hluav taws xob yog siab.
(4) Lub tshav kub kub yog qhov zoo.
(5) Lub teeb-emitting lub kaum ntse ntse ntawm lub pob pob muaj zog.
3. Txo cov naj npawb ntawm cov xo pob khoom tsis muaj lub teeb ci phais sab hauv-LED backlight module
Ib qho qauv ntawm sab nraum qab lub teeb ntsuab backlight module tsis muaj lub teeb ci qhia: ib lub teeb ci LED 205 yog muab pov tseg rau ntawm ib sab, thiab ib sab teeb reflecting ntawv 204b yog opposite thereto, thiab ib dot 203 yog tsim rau ntawm lub ntsiab lub teeb reflection ntawv 204a thiab sab sab thim xa ntawv 204b los kho cov qauv Daus thiab faib, ua rau cov teeb ci ntsa iab, Daim Duab 4a
Xam phaj 4a hla
Daim Duab 4b qhia tau tias LED teeb pom kev 405a thiab 405b muab ob sab thiab nruab nrab ntawm ib lub kaum sab xis 409. Cov dots 403 raug tsim los ntawm lub ntsiab reflector 404.
Daim Duab 4b pom kev hauv seem
Paub zoo:
(1) Tsis muaj cov ntawv qhia lub teeb thiab kev ua kom pom ntawm lub teeb nyob rau hauv lub teeb qhia daim ntawv qhia, thiab yog li ntawd, cov naj npawb ntawm cov khoom siv ntawm cov siv tsawg yog txo.
(2) Txo tus nqi ntawm cov khoom cua sov.
(3) Txo cov nqi.
(4) Txo qhov hnyav.
Txawm hais tias lub teeb ci ntsa iab sab nraum qab muaj ntau qhov kev tsis zoo, nws tsis tiv thaiv kom tsis txhob muaj qhov teeb meem feem ntau siv LED. Nws kuj yog vim nws cov nqi thiab qhov zoo. Yog hais tias qhov sib nrauj saum toj yuav tuaj yeem kho tau zoo dua, sab-hauv LED tuaj yeem kov lossis txo. Yog tias qhov tsis muaj teeb meem ntawm lub teeb nrig teeb meem muaj qhov tsis zoo rau nws qhov kev ua tau zoo, qhov chaw ua lag luam nws yuav muaj zog dua.
HNUB
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