White Light AC Electroluminescent Displays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F19%3APU135983" target="_blank" >RIV/00216305:26310/19:PU135983 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85072284724&origin=resultslist&sort=plf-f&src=s&sid=fe9d71bb64f8e855e7ec6d570a0671f9&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2857200822392%29&relpos=0&citeCnt=0&searchTerm=" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85072284724&origin=resultslist&sort=plf-f&src=s&sid=fe9d71bb64f8e855e7ec6d570a0671f9&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2857200822392%29&relpos=0&citeCnt=0&searchTerm=</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ISSE.2019.8810240" target="_blank" >10.1109/ISSE.2019.8810240</a>

Jazyk výsledku

angličtina

Název v původním jazyce

White Light AC Electroluminescent Displays

Popis výsledku v původním jazyce

Alternating Current Electroluminescence (ACEL)was measured in orange and blue phosphors and a mixture of them in a ratio of 2: 1. The phosphor, dielectric and top silver electrodes were prepared by screen printing. Nowadays ACEL is presented on the market as the only technique for quick and easy preparation of large area, low cost electroluminescent panels by the means of material printing. From the optical microscope images, we could conclude that the radiation of blue phosphor dominates over the orange one. These results are confirmed in the absolute irradiance spectra. Moreover, using samples, based on phosphor stripes leads to a decrease of the total irradiance, but, on the other hand, the uniformity of the emitted EL light is improved. Printing of striped active layer is preferred from the point of view of achieving more uniformly distributed light. The summarized fitting parameters show that driving frequency around 300 Hz will produce white light with reasonable intensity and with values of x, y coordinates higher than 0.31. The somewhat lower intensity of the emitted light can be improved by setting higher driving AC voltage. The voltage tested in this work was set to be constant at 250 Vpp.

Název v anglickém jazyce

White Light AC Electroluminescent Displays

Popis výsledku anglicky

Alternating Current Electroluminescence (ACEL)was measured in orange and blue phosphors and a mixture of them in a ratio of 2: 1. The phosphor, dielectric and top silver electrodes were prepared by screen printing. Nowadays ACEL is presented on the market as the only technique for quick and easy preparation of large area, low cost electroluminescent panels by the means of material printing. From the optical microscope images, we could conclude that the radiation of blue phosphor dominates over the orange one. These results are confirmed in the absolute irradiance spectra. Moreover, using samples, based on phosphor stripes leads to a decrease of the total irradiance, but, on the other hand, the uniformity of the emitted EL light is improved. Printing of striped active layer is preferred from the point of view of achieving more uniformly distributed light. The summarized fitting parameters show that driving frequency around 300 Hz will produce white light with reasonable intensity and with values of x, y coordinates higher than 0.31. The somewhat lower intensity of the emitted light can be improved by setting higher driving AC voltage. The voltage tested in this work was set to be constant at 250 Vpp.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Spring Seminar on Electronics Technology ISSE

ISBN

978-1-728-11874-1

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

IEEE Computer Society

Místo vydání

New York

Místo konání akce

Zlatibor

Datum konání akce

16. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000507501000025