Tehnologiji prikazovalnikov LCD in OLED

diplomsko delo

David Kapun (Author), Marjan Družovec (Mentor)

Abstract

Medijska vsebina največkrat doseže uporabnike preko interaktivnih naprav, kot so televizorji, mobilni telefoni, tablice prenosniki ipd. Večina teh naprav uporablja LCD-tehnologijo (Liquid Crystal Display: zaslon s tekočimi kristali), povečuje se pa delež naprav s hitro razvijajočo se OLED-tehnologijo(Organic light emitting diode: organske svetleče diode). Mobilni telefoni in tablice vedno pogosteje vključujejo OLED-prikazovalnike. V diplomski nalogi je raziskano delovanje obeh tehnologij. Definirani so kriteriji kakovosti, po katerih so nato ovrednotene prednosti ter slabosti. Ti so ločljivost, gostota pikslov, kontrastno razmerje, svetlost, frekvenca osveževanja, odzivni čas, barvni gamut, poraba energije in pa tehnologija proizvodnje. Zaključki so, da imajo naprave z OLED-tehnologijo boljša kontrastna razmerja (izjemne črne barve), odzivne čase ter večji barvni spekter. Teoretično imajo lahko tudi višje frekvence osveževanja. Gostota pikslov pa je parameter, ki je pogojen z velikostjo zaslona ter ločljivostjo in tudi tukaj se z OLED-tehnologijo dosega rekordno nasičene mikrozaslone. Naprave z LCD-tehnologijo pa še vedno dosegajo nekoliko večjo ločljivost in svetlost, so energetsko varčnejše ter cenejše za proizvodnjo. Na področju televizorjev prevladujejo, saj proizvodnja OLED-panelov večjih razsežnosti še ni dosegla zadovoljive učinkovitosti.

Keywords

LCD prikazovalniki;LCD tehnologija;OLED tehnologija;prikazovalniki;zasloni;barve;kontrast;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher:	[D. Kapun]
UDC:	004.353.2(043.2)
COBISS:	19193366
Views:	1112
Downloads:	102
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	LCD AND OLED DISPLAY TECHNOLOGIES
Secondary abstract:	Users mostly get their media content through interactive devices, such as TVs, mobile phones, tablet computers, laptops, etc. The majority of devices incorporate LCD technology (Liquid crystall display), however the amount of devices with OLED (Organic light emitting diode) technology is increasing. The new technology is mostly used in mobile phones and tablet computers. In the thesis both LCD and OLED technologies and their operation is discussed. Quality criteria are also defined through which strengths and weaknesses of each technology are evaluated. Criteria that were defined are resolution, pixel density, contrast ratio, brightness, refresh rate, response time, color gamut, power consumption and manufacturing technologies. Research shows that OLED devices have better contrast ratios (amazing black levels), response times and a wider color gamut. Theoretically, they can have higher refresh rates. Pixel density is a parameter which is dependent on display size and resolution. Micro-displays with extremely high pixel densities can be made using OLEDs. As for LCD technology, it still remains the leader in resolution and brightness. Devices using this technology consume less power and arecheaper to manufacture. There is a lot higher portion of LCD TVs on the market. This is due to the fact that OLED production techniques for bigger panels are not sufficiently effective yet.
Secondary keywords:	LCD technology;liquid crystall display;OLED technology;organic light emitting diode;display;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Medijske komunikacije
Pages:	VI, 63 f.
ID:	8887334