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Greener Journal of Electronics and Communication

Vol. 1 (1), pp. 001-012, May 2014.

  2013 Greener Journals  

Research Paper

 

 Manuscript Number: 032414159

 

OLED Fabrication for use in Display Systems and Comparison with LCD and PLASMA

 

Askari Mohammad Bagher

 

Department of Physics Azad University, North branch, Tehran, Tehran, Iran.

 

Email: MB_Askari @ yahoo. com

 

   Abstract

 

Popular LCD you commonly see used with computers, LCD TVs have a slim design and a flat viewing surface, but have been fine tuned for video display. Recent advances in flat panel LCD technology now allow for larger screens, wider viewing angles, and higher-quality video images. LCD Televisions are also competition for trendy plasma tv technology. They are several times lighter than comparably sized plasmas, and are far more durable.
Organic light-emitting diode (OLEDs) displays are a promising new display technology that possesses advantages such as thinner and flexible displays, lower power consumption, and a wider viewing angle. The materials used in OLEDs produce a high fluorescence with a small voltage which makes them more efficient than current display technology. There are two main types of fabrication currently in use for OLED’s. The first, small molecule OLED technology, requires vacuum deposition and typically uses a glass substrate. The second, which utilizes a deposition technique derived from ink-jet printing can be applied to a variety of substrates including flexible ones. The use of flexible displays generates much interest in the consumer market because of the possibility of new applications. This paper will focus on some of the many different approaches to OLED fabrication as well as techniques involved in producing full color displays. The use of flexible displays generates much interest in the consumer market because of the possibility of new applications. Organic light emitting diode (OLED) displays have been attracting more attention because of their various advantages including simple structure, self-emitting, fast response time and wide viewing angle. In the last decade, the focus of research is on improvement of efficiency and reliability for commercial applications [1]. Conventional multi-layer white organic light emitting diode (OLED) devices have a structure of stacked three primary color emissive layers (EMLs) with at least three emissive do pants. This method induces different degradation rates and phase segregation among different do pants and differential color aging. OLEDs with a single emissive do pant material in an EML are employed to avoid these disadvantages. six different methods for white OLEDs with a single emissive do pant, i.e., using (1) simultaneous emission from the host material in the EML, (2) excimer, (3) mixed-ligand molecule, (4) phosphor-sensitized fluorescent material, (5) exciplex, and (6) dual emission using excimer and exciplex. OLED and LED lighting are both solid-state technologies and offer overlapping value propositions per market segment. They will therefore compete directly in many instances. LED lighting has come a long way and offers a better performance than OLEDs, and that at a lower cost. OLED lighting will therefore only gain market success if it clearly defines its unique selling points and carves out initial market niches. In this paper we will be examining OLED Fabrication for Use in Display Systems and comparison with LCD and PLASMA

Keywords: Organic light-emitting diode, Organic LED, OLED, LCD, PLASMA.
 

 

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