Xyoo tom ntej, thaum ua haujlwm hauv San Francisco, Farnsworth tau nthuav tawm thawj lub TV hluav taws xob ( 1927).
Thaum twg yog TVS hluav taws xob tsim?
1947: Ib qho kev txuas mus tas li txuas plaub lub chaw nres tsheb sab hnub tuaj hauv Asmeskas tau tsim los ntawm NBC. Thaum Lub Rau Hli 3, Canadian General Electric engineers hauv Windsor tau txais thawj qhov kev tshaj tawm hauv xov tooj cua hauv Canada, xa los ntawm US chaw nres tsheb tshiab WWDT hauv Detroit.
thawj lub TV hluav taws xob ua nrog dab tsi?
TV Mus Rau Hluav Taws Xob Nrog Cathode Ray Tubes Xyoo 1923, Zworykin tau ua haujlwm ntawm Pittsburgh-based manufacturing tuam txhab Westinghouse thaum nws tau thov rau nws thawj TV patent, rau "Iconoscope," uas siv cathode ray raj xa cov duab.
Thaum twg lub TV thib 1 tau tsim?
thawj "TV" system tshaj tawm yog txoj kab ncaj nraim los ntawm Philo Farnsworth ntawm Cuaj Hlis 7, 1927. Cov xovxwm tau nthuav tawm nrog qhov kev tshawb fawb txog kev tshawb fawb no thaum Lub Ib Hlis 13, 1928 thiab nws txawm hais txog ob peb phau ntawv tseem ceeb thoob tebchaws.
Thaum twg TV muaj nyob hauv tsev neeg?
Tus naj npawb ntawm TV siv tau nce los ntawm 6,000 hauv xyoo 1946 mus rau qee qhov 12 lab los ntawm 1951. Tsis muaj kev tsim kho tshiab nkag mus rau Asmeskas cov tsev sai dua li cov TV dub thiab dawb; los ntawm 1955 ib nrab ntawm tag nrho cov tsev hauv Teb Chaws Asmeskas muaj ib qho.
