53.3: Invited Paper: CNT FEDs for Large Area and HDTV Applications

Joon, Eung; Lee, Chun Gyoo; Choi, Jong Sick; Chang, Cheol; Park, Jong Hwan; Lee, Chul‐Ho; Choe, Duk‐Hyun

doi:10.1889/1.2720335

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…13,14 Usually, the double-gate structure is introduced in the Spindt-type emitter 15 and small-hole CNT emitters. 16 In these cathodes, a second gate is called the focusing gate, and negative voltage is usually applied to focus the electron beam. On the other hand, a positive dc high voltage (typically 1-2 kV) is applied to our electric-potential control electrode to apply the positive electric field all over the CNT surface.…”

Section: Panel Structurementioning

confidence: 99%

Practical CNT‐FED structure for high‐luminance character displays

Yotani¹,

Uemura²,

Nagasako³

et al. 2008

J Soc Info Display

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A high-luminance CNT-FED character display using a simple line rib structure was constructed. The display panel had 48 × 480 dots and the subpixel pitch was 1 mm. The greatest benefit of a display using CNT technology is high luminance performance with low-power consumption. The luminance of the green-color dot was ca. 10,000 cd/m 2 under 1/16 duty-cycle driving at a 6-kV anode voltage. The high luminance of the display panel can provide good visibility when installed even in outdoor locations, and the power consumption was ca. 4 W at the character displaying module. This, a CNT-FED for character displays also has potential multifunctionality, which could be battery driven. It should be useful for public displays even under emergency no-power conditions. In this work, a practical structure and process technologies for making ribs with reasonable cost were developed. The newly introduced 2-mm-tall line ribs as spacers were formed by using innovative production processes; i.e., the rib paste was pushed out of a multi-slit nozzle, and the rib shape was formed by UV-light irradiation. The developed panel structure and manufacturing processes also had the advantages of size flexibility and high production yield.

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Section: Panel Structurementioning

confidence: 99%

Practical CNT‐FED structure for high‐luminance character displays

Yotani¹,

Uemura²,

Nagasako³

et al. 2008

J Soc Info Display

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“…[6][7][8][9] CNT를 이용하여 전계방출 소자로 적용하여 상용화 하기 위해서는 우선적으로 전계(electric field)집중으로 인한 국 부적인 전자 방출, 아웃개싱(out-gassing), 에미터와 기판 과의 약한 결합력(adhesion force) 등을 피하기 위한 재 료 및 공정이 선택되어야 하며, 최적화된 전기적인 에이 징(electrical aging) 공정이 수반되어야 한다. [10][11][12][13][14] 기존의 에미터 형성 방법으로는 CVD를 이용한 직접 성 장법(direct-growth method), CNT 페이스트(paste)를 이용한 스크린 인쇄법(screen printing method), 분산 처리된 CNT 용액을 이용한 분사법(spray method)등이 사용되고 있다. Fig.…”

Section: 서 론unclassified

Effect of Surface Morphology and Adhesion Force on the Field Emisson Properties ofCarbon Nanotube Based Cathode

Jung¹,

Cho²,

Kang³

et al. 2008

Korean. J. Mater. Res.

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The effects of the field emission property in relation to the surface morphology and adhesion force were investigated. The single-wall-nanotube-based cathode was obtained by use of an in-situ arc discharge synthesis method, a screen-printing method and a spray method. The morphologies of the formed emitter layers were very different. The emission stability and uniformity were dramatically improved by employing an in-situ arc discharge synthesis method. In this study, it was confirmed that the current stability and uniformity of the field emission of the cathode depend on the surface morphology and adhesion force of the emitters. The current stability of the field emission device was also studied through an electrical aging process by varying the current and electric field.Key words single walled carbon nanotube, field emission, surface morphology, adhesion force, electrical aging.

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“…An electron "stream" is launched (numerically) from the center of each region and its trajectory is traced to the anode. Each stream carries a current of (2) In the actual device, each pad contains multiple carbon nanotubes. For the purposes of the model, we simplified the geometry by assigning five nanotubes of the same height to each nanotube growth pad (pads shown in Fig.…”

Section: Design and Simulationmentioning

confidence: 99%

A carbon‐nanotube field‐emission display with simple electron‐beam trajectory control

et al. 2007

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A unique gated cathode structure for a carbon-nanotube-based field-emission display has been designed and built. This structure optimizes the electron-beam profiles to assure a good color gamut and high anode efficiency without requiring specific focusing electrodes or structure. A computer simulation, written to analyze and improve the device design, shows good correlation with the experimental data and helps predict design margins. A full-color frit-sealed display built with this approach demonstrates an excellent color gamut of the phosphor, and the model predicts avenues for further color-gamut improvements.

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53.3: Invited Paper: CNT FEDs for Large Area and HDTV Applications

Cited by 9 publications

References 2 publications

Practical CNT‐FED structure for high‐luminance character displays

Practical CNT‐FED structure for high‐luminance character displays

Effect of Surface Morphology and Adhesion Force on the Field Emisson Properties ofCarbon Nanotube Based Cathode

A carbon‐nanotube field‐emission display with simple electron‐beam trajectory control

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