• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08b
• /
• pp.1711-1714
• /
• 2007

Various manufacturing methods are analyzed by using manufacturing metrics to validate which method would be applicable to flexible microelectronics. Among others, Roll-to-Roll method is revealed to inherently have an excessive WIP resulting in long cycle time and limited diversity as well as low equipment efficiency.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2005.07b
• /
• pp.1491-1494
• /
• 2005

We have studied ink-jet printing method for patterning conductive line on flexible plastic substrates. Synthesized silver nano-particles of ${\sim}$20nm were used for the conductive ink and the printed patterns exhibit a smooth line whose linewidth is below 100 ${\mu}m$. This ink-jet printing technique can be applied to flexible displays and electronics.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.1523-1526
• /
• 2009

We present highly polarized light emissions from an OLED on a flexible photonic anisotropic substrate. It was found that the polarization direction of emitted electroluminescent light corresponded to the ordinaryaxis of the photonic anisotropic substrate. Furthermore, it was also found that luminous polarized electroluminescence over 4,500 cd/$m^2$ was produced with high peak efficiency of 6 cd/A and high polarization ratio over 25.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.897-899
• /
• 2007

Transparent electrodes for a flexible display based on the liquid crystal (LC) were formed by carbon nanotubes (CNTs) on polyethylene terephthalate (PET) substrates. The thin multi wall carbon nanotubes (t-MWNTs) networks for electrodes were obtained by filtration- transfer method from welldispersed CNTs solution.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.749-751
• /
• 2007

A buffer layer consisting of $SiO_x/Ta/Ti$ has been developed in order to overcome the adhesion and stress problems between poly-Si film and mica. Polycrystalline silicon thin film transistor was successfully fabricated on the mica and transferred to a flexible plastic substrate.

• Journal of Information Display
• /
• v.2 no.4
• /
• pp.15-18
• /
• 2001

We report simple techniques to manufacture low-powered, high-resolution, reflective cholesteric displays using flexible plastic substrates. We use wax transfer printing to replace photo-lithography and incorporate polymer walls to increase the mechanical strength and lifetime of the displays. These printing methods can easily be adapted to roll-to-roll production.

• Ceramist
• /
• v.21 no.1
• /
• pp.4-11
• /
• 2018

Display is an essence in human-machine communication interface. As mobile environment such as internet of things (IOT) and Artificial Intelligence (AI) progress, importance of display increases. Here we review research trend in flexible organic light emitting displays (OLEDs). This review article covers all the components consisting of flexible OELDs and shows direction of the recent research. This paper would be helpful for readers and researchers working in this field and provide perspective for future displays.

• Journal of Information Display
• /
• v.12 no.2
• /
• pp.109-113
• /
• 2011

This paper summarizes the recent fabrication and characterizations of flexible high-speed radio frequency (RF) transistors, PIN-diode single-pole single-throw switches, as well as flexible inductors and capacitors, based on single-crystalline Si nanomembranes transferred on polyethylene terephthalate substrates. Flexible thin-film transistors (TFTs) on plastic substrates have reached RF operation speed with a record cut-off/maximum oscillation frequency ($f_T/f_{max}$) values of 3.8/12 GHz. PIN diode switches exhibit excellent ON/OFF behaviors at high RF frequencies. Flexible inductors and capacitors compatible with high-speed TFT fabrication show resonance frequencies ($f_{res}$) up to 9.1 and 13.5 GHz, respectively. Robust mechanical characteristics were also demonstrated with these high-frequency passives components.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.998-1001
• /
• 2009

A new flexible TFT backplane structure with improved mechanical reliability is proposed. Amorphous indium-gallium-zinc-oxide (a-IGZO) thin film transistors based on this structure have been fabricated on a polyimide substrate, and the resultant mechanical durability has been evaluated in a cyclic bending test. The panel can withstand 10,000 bending cycles at a bending radius of 5 mm without any noticeable TFT degradation. After 10K bending cycles, the change of threshold voltage, mobility, sub-threshold slope, and gate leakage current were only -0.22V, -0.13$cm^2$/V-s, -0.05V/decade, and $-3.05{\times}10^{-13}A$, respectively.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2004.08a
• /
• pp.985-987
• /
• 2004

A plastic substrate for flexible display is developed. The gas barrier property in the substrate is improved through depositing metal and metal oxide multi layer on plastic film by PVD process. The metal/metal-oxide multiplayer on plastic film shows excellent gas barrier property and optical property.