Cén fáth go mbeidh pláta treoir solais backlight faoi stiúir dotting léasair in ionad pláta treoir solais scáileáin síoda?

Is é an modúl backlight soláthraí foinse solais an scáileáin taispeána criostail leachtach. Ní astaíonn an LCD féin solas. Cinneann feidhmíocht foinse solais an mhodúil backlight tuiscint amhairc an taispeántais. Is é an pláta treoir solais meán tarchurtha foinse solais an mhodúil backlight. Cinneann socrú poncanna, cruth agus comhdhéanamh an ábhair feidhmíocht gile, aonfhoirmeacht dáilte agus éifeachtacht aschuir solais na foinse solais atá ag dul as oifig. Is é an pláta treoir solais an eochair don mhodúl backlight LED. comhpháirteanna. Cinneann an éifeachtacht lonrúil agus aonfhoirmeacht lonrúil.

Foinse backlight LED, is é an príomh-chomhpháirt pláta treoir solais, ar a dtugtar freisin pláta astaithe solais, tá sé comhdhéanta d'ábhar aicrileach (PMMA) nó PC, nó PS, is iad seo a leanas na modhanna déantúsaíochta?

1. Laser Dotting

Is éard atá i-an bhféachaint léasair, mar a thugtar air, ná meaisín braite léasair a úsáid. Is é an prionsabal fisiceach de ghnáth coirníní lampa faoi stiúir ard-ghile a shuiteáil ar thaobh leathán aicrileach ard-trédhearcachta le tiús áirithe, agus déantar solas cosúil le LEDs a fhilleadh agus a iomadaíodh taobh istigh den leathán aicrileach ag uillinn éagsúlachta áirithe. Nuair a ionradaíonn an solas ar na poncanna léasair a dháiltear ar chúl an aicrileach agus eitseáilte le léasair CO2 (dé-ocsaíd charbóin), déanfaidh sé machnamh idirleata agus athraonta, ionas gur féidir an solas a dháileadh go cothrom ar an pláta treoir solais. Is iad na buntáistí a bhaineann leis ná: dea-éifeacht, am úsáide fada, próiseas simplí

  Second, open mold light guide plate

  The so-called open-mould light guide plate is a light guide plate with bumps formed by injection molding with a pre-designed mold by an injection molding machine.

  Three, silk screen light guide plate

 The so-called screen printing light guide plate is through the screen printing machine, adding ink and screen printing screen frame, screen printing on the acrylic surface to form dot-shaped ink dots.

  Analysis of the reasons why the laser spotting of the light guide plate will gradually replace the silk-screened light guide plate?

  Nowadays, more and more light guide plate manufacturers choose to use laser dots to make light guide plates. Why?

  First, the process of silk-screening the light guide plate is complicated. The acrylic sheet needs to be printed on the screen and ink, and then dried through the screen printing tunnel furnace to become the dot light guide plate. Among them, the production time period of the stencil is relatively long, usually takes a week, and each link requires manual operation.

  Second, environmental pollution is large. The production of silk-screen light guide plates requires ink, but ink is the biggest source of pollution in the printing industry. Because it is an organic volatile compound, it will form oxides and photochemical smog under sunlight, and the smell is particularly strong and pungent. Long-term operation may affect people's health.

  Third, it is easy to yellow and has a short lifespan. Since the heat generated by the LED during the lighting process will affect the ink, the ink dots will affect the emission of light, resulting in the phenomenon of light decay, which will eventually lead to uneven light or yellowing of the LED panel light, and the use time is not long.

  To sum up, the advantages of using the light guide plate laser marking machine for marking are gradually emerging, and more and more people use the light guide plate laser marking machine to make the light guide plate!