Txoj kev loj hlob ntawm LED

Txoj kev loj hlob ntawm LED yog los ntawm kev kuaj pom mus rau lub ntiaj teb teeb pom kev hloov pauv.Nrog txoj kev loj hlob sai ntawm LED, tam sim no LED daim ntawv thov feem ntau yog:
- Teeb pom kev hauv tsev:LED teeb, qab nthab teeb, rooj teeb
- Kev lag luam teeb pom kev zoo:downlights, tsom teeb, vaj huam sib luag teeb
- Kev lag luam teeb pom kev zoo:mining teeb, siab shed teeb
- Sab nraum zoov teeb pom kev zoo:txoj kev teeb, teeb pom kev zoo, teeb pas dej ua ke
- Automotive teeb pom kev zoo:LED taub hau, hnub teeb, taillights
- LED zaub:advertising npo, Mini LED TV
- Teeb pom kev tshwj xeeb:UV curing teeb, cog kev loj hlob teeb

Niaj hnub no, peb tuaj yeem pom LED txhua qhov chaw hauv peb lub neej, qhov no yog qhov tshwm sim ntawm ze li ib puas xyoo ntawm kev siv zog, peb tuaj yeem paub qhov kev txhim kho ntawm LED li tshuab 4 theem:
1. Kev tshawb nrhiav thaum ntxov (thaum ntxov 20th caug xyoo -1960s)
-Discovery ntawm electroluminescence (1907)
British engineer Henry Joseph Round thawj zaug pom electroluminescence ntawm silicon carbide (SiC) crystals, tab sis tsis tau kawm nws qhov tob.
Xyoo 1927, tus kws tshawb fawb Soviet Oleg Losev tau kawm ntxiv thiab luam tawm ib daim ntawv, suav tias yog "txiv ntawm LED txoj kev xav", tab sis kev tshawb fawb tau cuam tshuam vim yog Tsov Rog Ntiaj Teb Zaum II.

- Thawj lub tswv yim LED tau yug los (1962)
Nick Holonyak Jr., General Electric (GE) Engineer Invented thawj lub teeb pom kev zoo LED (lub teeb liab, GaAsP khoom).qhov no cim cov LED los ntawm lub chaw soj nstuam mus rau kev lag luam, Ameslikas siv rau ntsuas ntsuas.

2. Kev tawg ntawm cov xim LED (1970s-1990s)
- Ntsuab thiab daj coj tau qhia (1970s)
1972: M. George Craford (Holonyak tus tub ntxhais kawm) tsim lub teeb daj LED (10 npaug zog dua).
1980s: Aluminium, gallium thiab arsenic (AlGaAs) cov ntaub ntawv tau zoo heev txhim kho kev ua haujlwm ntawm cov LEDs liab, uas tau siv rau hauv lub teeb tsheb thiab cov khoom siv hluav taws xob.

-Blue LED kiv puag ncig (1990s)
1993: Tus kws tshawb fawb Nyij Pooj Shuji Nakamura (Shuji Nakamura) hauv Nichia chemical (Nichia) breakthrough gallium nitride (GaN) raws li xiav LED, yeej 2014 Nobel nqi zog hauv physics.This kos Blue LED + phosphor = dawb LED, nteg lub hauv paus ntawm niaj hnub LED teeb pom kev zoo.

3. Nrov ntawm LED dawb thiab teeb pom kev zoo (2000s-2010s)
- Dawb LED kev lag luam (2000s)
Nichia Chemical, Cree, Osram thiab lwm cov tuam txhab lag luam tau pib ua haujlwm siab dawb coj los hloov cov roj teeb thiab fluorescent.
2006: American Cree tuam txhab tso tawm thawj 100lm / W LED, tshaj fluorescent teeb efficiency.
(Hauv xyoo 2006 Heguang Teeb pom kev zoo pib tsim cov teeb pom kev hauv qab dej)

-LED rau hauv lub teeb pom kev zoo (2010s)
2010s: Tus nqi ntawm LED tau poob qis, thiab cov teb chaws thoob ntiaj teb tau siv "txiav txim siab dawb" (xws li EU tau txiav tawm cov teeb ci hauv xyoo 2012).
2014: Nobel nqi zog hauv Physics muab rau Isamu Akasaki, Hiroshi Amano thiab Shuji Nakamura rau kev koom tes rau xiav leds.

4. Niaj hnub nimno LED technology (2020s txog tam sim no)
- Mini LED & Micro LED
Mini LED: Siv rau high-end TVS (xws li Apple Pro Display XDR), esports cov ntxaij vab tshaus, rov qab zoo dua.
Micro LED: self-luminous pixels, xav tias yuav hloov OLED (Samsung, SONY tau tshaj tawm cov khoom tsim qauv).

- Ntse teeb pom kev zoo thiab Li-Fi
Ntse LED: adjustable xim kub, tswj kev sib tham (xws li Philips Hue).
Li-Fi: Kev siv lub teeb ci LED xa cov ntaub ntawv, sai dua Wi-Fi (lab tau txog 224Gbps).

- UV LED thiab daim ntawv thov tshwj xeeb
Uv-c LED: Siv rau kev ua kom tsis muaj menyuam (xws li cov khoom siv tshuaj tua kab mob UV thaum muaj kev sib kis).
Cog loj hlob LED: Customized spectrum los txhim kho kev ua liaj ua teb.

Los ntawm "qhov taw qhia lub teeb" mus rau "cov teeb pom kev tseem ceeb": kev ua haujlwm tau nce los ntawm 1,000 zaug thiab tus nqi raug txo los ntawm 99%, lub ntiaj teb LED nrov txo qis ntau pua lab tons ntawm CO₂ emissions txhua xyoo, LED hloov lub ntiaj teb! Nyob rau hauv lub neej yav tom ntej, LED tej zaum yuav revolutionize zaub, kev sib txuas lus, kev kho mob thiab ntau lwm yam lag luam! Peb mam li tos saib!