• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.364-366
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• 2009

We successfully fabricated flexible electronic paper display (EPD) by using toner particles on plastic (PC) substrate. It has high resolution (WVGA : 800 ${\times}$ 480) and 7 inch diagonal viewable image size. The response time was about 0.25 msec at 90 V, a contrast ratio of about 2, a driving voltage of 60 V which we successfully demonstrated to display several images at.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.886-888
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• 2009

We fabricated flexible electronic paper display(EPD) by using toner particles on plastic (PC) substrate. We observed the relationship between contrast ratio and changes of rib structures. One is a fabrication of ribs on bottom substrate. The display with ribs on bottom substrate had higher contrast ratio about 46% than display with ribs on top substrate. The other is a change of density of rib. The less density of ribs fabricated, the higher the contrast ratio become.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.289-292
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• 2004

We have successfully fabricated $Binem^{(R)}$ displays on thin flexible plastic substrates. The fabrication is based on the standard $Binem^{(R)}$ process for glass which has been adapted to plastic with new materials and technologies. The first application is targeted to an embedded display for smart card products.

• Journal of Information Display
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• v.6 no.1
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• pp.8-11
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• 2005

A flexible reflective cholesteric liquid crystal display (ChLCD) is fabricated on plastic substrates by using the pixel isolation method. The polymer walls between pixels and the polymer layers in the pixels are formed by two-step UV irradiation. Electro-optical response of the ChLCD with polymer wall and layer is studied and compared with conventional bistable ChLCD cells.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.221-224
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• 2009

New type simple, thin and flexible display unit with an exchangeable image-sheet coupled with a thin film light waveguide illuminated by color LEDs is proposed It displays the still picture like an e-paper, and the imagesheet with grooves formed by the PC and the cutting plotter can be easily replaced by another one.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.575-579
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• 2005

A beautiful, flexible active-matrix electrophoretic display (AM-EPD) device is reported. The flexible AM-EPD device has a $40.0{\times}30.0\;mm^2$ display area, measures about 0.27 mm in thickness, weighs about 0.45 g and possesses only 20 external connections. The flexible AM-EPD device displays clear black-and-white images with 5 gray-scales on $160{\times}120$ pixels. The display is free from residual image problems, because we use an area-gray-scale method on $320{\times}240$ EPD elements, each of which is driven with binary signals. Each pixel consists of 4 EPD elements. In addition, since the response time of the electrophoretic material is as long as approximately 400 ms and since the display possesses a large number of EPD elements, we have developed a special driving method suitable for changing EPD images comfortably. A complete image is formed on the AM-EPD device, consisting of a reset frame and several, typically 6, image frames.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.1575-1577
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• 2009

We have investigated the characteristics of transparent indium zinc oxide(IZO)/Ag/IZO multilayer electrode grown on polyethylene terephthalate (PET) substrates using a specially designed roll-to-roll sputtering system for use in flexible device are described. By the continuous R2R sputtering of the bottom IZO, Ag, and top IZO layers at room temperature, we were able to fabricate an IZO-Ag-IZO multilayer electrode with a sheet resistance of 6.15 ${\Omega}$/square, optical transmittance of 87.4 %, and figure of merit value of 42.03 10-3 ${\Omega}$-1. In addition, the IZO-Ag-IZO multilayer electrode exhibited superior flexibility to the RTR sputter grown single ITO electrode, due to the existence a ductile Ag layer between the IZO layers. This indicates that the RTR sputtered IZO-Ag-IZO multilayer is a promising flexible electrode that can substitute for the conventional single ITO electrode grown by bath type sputtering for use in low cost flexible device, due to its low resistance, high transparency, superior flexibility and fast preparation by the R2R process.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.171-174
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• 2008

We present results demonstrating that low power consumption phosphorescent AMOLED displays can be fabricated on ultra-thin ($25{\mu}m$) stainless steel substrates, combining an amorphous silicon backplane with a top emission phosphorescent OLED frontplane. We will present preliminary results of flexibility testing on these displays.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.141-146
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• 2005

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.1189-1192
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• 2006

We have demonstrated the novel technique for spacing two flexible substrates in stable by using rigid pillar spacer array and micro-contact printing assembling technique. Specially designed columnar structure generates self-collected adhesive polymer feature results in a good adhesion and a high mechanical stability to the external bending deformations.