Hore iyo Hadda: Taariikhda Farsamada Bandhigga LED

Iyada oo dhammaan horumarka lagu sameeyay tignoolajiyada bandhigga, waxay u muuqataa mid aan suurtagal ahayn in la rumaysto in aqoonta loo adeegsaday abuuritaanka iyo horumarinta tignoolajiyadan ay ka badan tahay boqol sano. Dhab ahaantii, tillaabooyinka ugu horreeya ee farsamada soo-bandhigidda waxay billaabeen 1897-kii markii Karl Ferdinand Braun, oo ahaa fiisigiste iyo hal-abuure, uu dhisay Cathode Ray Tube-kii ugu horreeyay. Midkan yar waxa uu ahaa in uu ogolaado in la dhiso telefishinadii ugu horeeyay sidaasna ay ku abuurto warshad si wayn u horumartay tan iyo markii la aasaasay.

Horumarkii labaad ee la dareemi karo ee tignoolajiyada soo bandhigiddu waxay soo bilaabatay toban sano ka dib, 1907dii markii la helay Electroluminescence. Dhacdadan dabiiciga ah waxay bixin doontaa horusocodka ugu horreeya ee tignoolajiyada LED. 1952 waxa la arkay horumarka shaashadii ugu horaysay ee la huwiyey, waxaana lagu rakibay dhawr tiyaatar oo dalka Maraykanka ah. Farsamadaasi ma heli doonto macaamiisha muddo konton sano ah.

Talaabada weyn ee xigta ee taariikhda shaashadda waxay ahayd abuurista nalka ugu horreeya ee LED 1961. Robert Biard iyo Gary Pittman waxay shati u siiyeen nalka LED-ka ee ugu horreeya ee Texas Instruments. Sannadkii xigay Nick Holonyck wuxuu soo saaray iftiinka LED-ka ee ugu horreeya. Laba sano ka dib, 1964kii, tignoolajiyada shaashadu waxay samaysay boodbood kale oo weyn iyada oo ikhtiraacay LCD iyo shaashadaha balaasmaha ee uu sameeyay hal-abuure Maraykan ah James Fergason.

Inkasta oo tignoolajiyada soo bandhigaysa talefannada casriga ahi ay tahay mid cusub, haddana bandhigyadan kii ugu horreeyay waxa la allifay 1965-kii oo ahayd tii ugu horreysay ee loo isticmaalo maamulayaasha hawada. HDTV waxa kale oo uu bilawgiisii ​​Japan ku leeyahay 1960-meeyadii iyo 1970-meeyadii, in kasta oo HDTV-yadu aanay gaadhin Maraykanka ilaa 1998-kii. Halka ay dadku galeen shaashadaha 90-meeyadii, OLED-yada waxa ikhtiraacay Kodak oo sidaas ku helay shaashadaha balaasmaha midab-buuxda ee ugu horreeya.

Si la yaab leh, warshadaha soo bandhigay ayaa si degdeg ah u balaariyay wayna sii wadi doonaan inay sidaas sameeyaan. Shaashado cabbirro kala duwan leh, qaabab iyo tignoolajiyadeed ayaa sii wadi doona in loo sameeyo codsiyo kala duwan. Natiijo ahaan, muhiimada nidaamyada saxda ah ee baaritaanka shaashadda ayaa sidoo kale si weyn u horumarin doona. Konica Minolta waxay leedahay dhowr habab cabbir oo muujinaya si ay u daboolaan baahiyaha isbeddelka ee warshadaha bandhigga.