Cov qauv tsim ntawm lub teeb qhia phaj ntawm TFT LCD kua siv lead ua zaub module
Mar 28, 2022
The light guide plate (LGP) of the TFT LCD liquid crystal display module is a material that works on the principle of light reflection and light scattering. This paper mainly introduces the structural design of the light guide plate of the TFT liquid crystal display screen. The main evaluation items include the production method, assembly structure, effective light-emitting area and gap, position fixation, and warpage control.
1. Txoj kev tsim khoom. Lub teeb qhia phaj feem ntau yog tsim los ntawm kev txhaj tshuaj molding thiab txiav. Kev txhaj tshuaj molding siv cov txheej txheem txhaj tshuaj molding los txhaj cov khoom yas rau hauv cov ntawv qhia lub teeb nrog cov npoo du ntawm ib sab thiab cov chaw kho qhov muag ntawm lwm sab, xws li ultra- cov ntawv qhia lub teeb nyias nyias thiab cov ntawv qhia lub teeb me me. Kev txiav los ua lub teeb qhia phaj yog siv lub teeb pom kev loj loj los txiav rau hauv cov duab uas xav tau ntawm lub teeb qhia phaj, thiab tom qab ntawd siv cov khoom siv uas muaj kev cuam tshuam siab thiab tsis muaj lub teeb nqus ntawm sab ntawm lub teeb qhia phaj, thiab siv cov txheej txheem luam ntawv hauv qab ntawm lub teeb qhia phaj. Sau nrog ncig los yog square dots kom diffuse lub teeb. Thaum lub teeb hits lub dots, lub teeb yuav tsum reflected nyob rau hauv tag nrho cov kev taw qhia, thiab ces lub reflection tej yam kev mob yuav raug puas tsuaj thiab lub teeb yuav emissions nyob rau hauv pem hauv ntej ntawm lub teeb qhia phaj. Txhawm rau kom ntseeg tau tias qhov tshwm sim ntawm lub teeb pom kev nyob rau hauv txhua qhov kev taw qhia yog tib yam, thiab ua kom lub teeb -emitting nto ntawm lub teeb qhia phaj emit lub teeb uniformly, ntau yam ceev thiab ntau qhov sib txawv ntawm cov dots yuav tsum tau siv. Raws li cov txheej txheem, kuj tseem muaj cov yeeb yaj kiab qhia hauv qab lub teeb qhia phaj, uas yog siv los cuam tshuam lub teeb xau los ntawm qhov chaw hauv qab rov qab mus rau hauv lub teeb qhia phaj, txhawm rau txhim kho kev siv lub teeb thiab ua kom lub teeb ci.
Qhov thib ob, cov qauv sib dhos. Cov qauv sib dhos ntawm lub teeb qhia phaj tau muab faib ua ob hom: rov qab installation thiab ib txwm teeb tsa. Rov qab kev teeb tsa yog ua ke nrog lub teeb qhia phaj thiab cov yas thav duab rau hauv tag nrho los ntawm kev tsim cov qauv haum ntawm cov yas thav duab thiab lub teeb qhia phaj. Kev siv lub teeb ntawm qhov thim rov qab -mounted teeb qhia phaj yog tsawg, thiab nws feem ntau txwv rau cov khoom me me -. Kev teeb tsa raug cai yog sib sau ua ke ib los ntawm ib qho los ntawm lub vaj huam sib luag tom qab, uas yooj yim dua los sib sau ua ke thiab feem ntau yog siv rau cov khoom nruab nrab thiab loj. Cov qauv tsim yog yooj yim rau disassemble thiab rework cov khoom, tab sis qhov tsis zoo yog tias cov txheej txheem sib dhos yog nce. Txawm hais tias qhov nce ntawm cov txheej txheem rau kev teeb tsa ua tiav ua rau tus nqi nce ntxiv, cov qauv no yog qhov muaj txiaj ntsig zoo hauv kev txhim kho lub teeb siv lub teeb ntawm lub teeb qhia phaj.
3. Teeb pom kev zoo- thaj chaw tawm thiab qhov sib txawv. Nyob rau hauv lub saib lub kaum sab xis specification, nws yuav tsum tau hais tias tus coj zaub screen yuav illuminated los ntawm lub teeb, yog li tus tsim ntawm lub teeb qhia phaj yuav tsum xav txog tag nrho cov zoo lub teeb - emitting cheeb tsam. Cov khoom siv ntawm lub teeb qhia phaj yuav nthuav dav lossis cog lus nrog cov kev hloov pauv ntawm cov av ib puag ncig lossis qhov kub thiab txias, yog li kev tsim qhov sib txawv ntawm lub teeb qhia phaj thiab cov khoom nyob ib sab yuav tsum xav txog qhov kev nthuav dav thiab kev cog lus ntxiv rau kev ua siab ntev. Yog tias lub teeb qhia phaj cuam tshuam nrog cov qauv sib txuas, lub suab nrov yuav tshwm sim thaum tuav. Ua tib zoo saib xyuas qhov tsim ntawm qhov sib txawv ntawm lub teeb qhia phaj thiab cov yas thav duab.
Plaub, qhov chaw yog tsau. Qhov chaw ruaj khov ntawm lub teeb qhia phaj yog tsim los tiv thaiv lub teeb qhia phaj los ntawm kev xoob ntawm qhov sib txawv tom qab raug cuam tshuam los ntawm kev quab yuam sab nraud. Txoj hauj lwm yog kho los ntawm concave -convex haum. Tsim qhov convex ntawm lub teeb qhia phaj thiab tsim qhov concave ntawm cov yas thav duab. Kev tsim ntawm lub convex ib feem ntawm lub teeb qhia phaj yuav tsum tau xyuas kom meej tias qhov teeb meem ntawm kev ntxhov siab concentration tsis tshwm sim tom qab raug cuam tshuam los ntawm sab nraud quab yuam.
5. Warpage tswj. Warpage yog qhov tsis xws luag ntawm lub teeb qhia phaj. Tom qab kev ntsuam xyuas kev ntseeg siab ntawm qhov kub thiab txias siab, nws yuav nthuav dav thiab warp vim qhov nqus dej siab. Thaum lub teeb qhia phaj yog warped, nws yuav ua rau cov yeeb yaj kiab kho qhov muag uas nyob ib sab ua rau wrinkle, los yog cuam tshuam nrog lub vijtsam zaub, ua rau cov zaub tsis zoo. Raws li kev ntsuas, thaum tsim lub teeb qhia phaj, qhov tso cai ntawm warpage ntawm lub teeb qhia phaj yuav tsum tau teev tseg. Thaum ua lub teeb qhia phaj, nws yog ib qho tsim nyog yuav tsum tau kho cov molding tej yam kev mob, thiab nyob rau hauv lub structural tsim, nws yog tsim nyog los txhim kho qhov sib txawv ntawm lub teeb qhia phaj thiab cov yas thav duab.
