• 제목/요약/키워드: K-D$^{(R)}$

검색결과 19,310건 처리시간 0.059초

A gas display device with electron emitter

  • Son, Seung-Hyun;Nam, Mun-Ho;Kim, Jung-Min;Cho, Sung-Hee;Jang, Sang-Hun;Kim, Gi-Young;Han, In-Su;Kim, Dae-Hyun;Cho, Young-Mi;Kim, Chang-Wook;Park, Hyoung-Bin
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1253-1256
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    • 2007
  • A display device combining plasma display panel (PDP) and field emission display (FED) is proposed to achieve high luminous efficiency. The device can avoid the main energy loss channels of both PDP (ion loss) and FED (low CL efficiency). $2{\sim}6$”-diagonal test panels with carbon nano-tube (CNT) electron emitter and Xenon ambient gas showed the luminous efficiency of 4.14lm/W and brightness of $263cd/m^2$ at 35V (1kHz, 1% duty), indicating that it is a good candidate for the low voltage driven, highly efficient next generation display.

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Integration Process and Reliability for $SrBi_2$ $Ta_2O_9$-based Ferroelectric Memories

  • Yang, B.;Lee, S.S.;Kang, Y.M.;Noh, K.H.;Hong, S.K.;Oh, S.H.;Kang, E.Y.;Lee, S.W.;Kim, J.G.;Shu, C.W.;Seong, J.W.;Lee, C.G.;Kang, N.S.;Park, Y.J.
    • JSTS:Journal of Semiconductor Technology and Science
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    • 제1권3호
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    • pp.141-157
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    • 2001
  • Highly reliable packaged 64kbit ferroelectric memories with $0.8{\;}\mu\textrm{m}$ CMOS ensuring ten-year retention and imprint at 125^{\circ}C$ have been successfully developed. These superior reliabilities have resulted from steady integration schemes free from the degradation, due to layer stress and attacks of process impurities. The resent results of research and development for ferroelectric memories at Hynix Semiconductor Inc. are summarized in this invited paper.

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Microcrystalline Silicon for Thin Film Transistor

  • Milovzorov, D.;Kim, K.B.;Lisachenko, M.;Seo, J.W.;Lee, K.Y.;Chung, H.K.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.1320-1322
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    • 2005
  • Microcrystalline silicon films were deposited on glass substrate by using plasma-enhanced chemical vapor deposition (PECVD) method. The crystalline volume fraction was estimated by means of Raman spectrometer with argon laser as light source. The high hydrogen dilution of silane gas was used for increase in content of crystal silicon phase.

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Low Voltage-Driven CNT Cathode and It's Applications

  • Lee, Chun-Gyoo;Lee, Sang-Jo;Cho, Sung-Hee;Chi, Eung-Joon;Lee, Byung-Gon;Jeon, Sang-Ho;Ahn, Sang-Hyuck;Hong, Su-Bong;Choe, Deok-Hyeon
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.851-854
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    • 2004
  • By approaching the counter electrode to the CNT emitter, remarkable reduction of the cathode operating voltage has been accomplished in the under-gate CNT cathode structure. The peak emission current density of 2.5 ms/$cm^2$, which is sufficient for high brightness CNT field emission display, was obtained at the cathode-to-gate voltage of 57 V when the CNT-to-counter electrode gap was 2.2 ${\mu}m$. The gate current was less than 10 % of the anode current. The CNT cathode with low driving voltage can help the cost-effective field emission display implemented.

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The Inhibitory Effect of New Hydroxamic Acid Derivatives on Melanogenesis

  • Baek, Heung-Soo;Rho, Ho-Sik;Yoo, Jae-Won;Ahn, Soo-Mi;Lee, Jin-Young;Lee, Jeong-A;Kim, Min-Kee;Kim, Duck-Hee;Chang, Ih-Seop
    • Bulletin of the Korean Chemical Society
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    • 제29권1호
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    • pp.43-46
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    • 2008
  • The aim of present study was to examine the inhibitory effects of hydroxamic acid derivatives on the melanogenesis. We found that hydroxamic acid moiety was important for anti-melanogenic activity. Compounds 1a and 1b strongly inhibited melanin synthesis via deactivation of tyrosinase. Hydroxamic acid has metal ion chelating ability which is similar to that kojic acid, however, anti-tyrosinase mechanism of compounds 1a and 1b was different from that of kojic acid. They showed noncompetitive inhibition kinetics

Integrated Gate Driver Circuit Using a-Si TFT with AC-Driven Dual Pull-down Structure

  • Jang, Yong-Ho;Yoon, Soo-Young;Kim, Binn;Chun, Min-Doo;Cho, Hyung-Nyuck;Cho, Nam-Wook;Sohn, Choong-Yong;Jo, Sung-Hak;Choi, Seung-Chan;Kim, Chang-Dong;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.944-947
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    • 2005
  • Highly stable gate driver circuit using a-Si TFT has been developed. The circuit has dual-pull down structure, in which bias stress to the TFTs is relieved by alternating applied voltage. The circuit has been successfully integrated in 4-in. QVGA and 14-in. XGA TFT-LCD with a normal a-Si process, which are stable for over 2,000 hours at $60^{\circ}C$. The enhancement of stability of the circuit is attributed to retarded degradation of pull-down TFTs by AC driving.

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Development of 40 inch Full Color AMOLED Display

  • Chung, K.;Huh, J.M.;Sung, U.C.;Chai, C.C.;Lee, J.H.;Kim, H.;Lee, S.P.;Goh, J.C.;Park, S.K.;Ko, C.S.;Koh, B.S.;Shin, K.J.;Choi, J.H.;Jung, J.H.;Kim, N.D.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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    • pp.781-784
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    • 2005
  • We have developed technology to fabricate large-size active matrix organic light-emitting diode (AMOLED) displays with good color purity. Using these innovations, we have developed a 40inch diagonal WXGA AMOLED full color display. Because the TFT circuitry occupies a large portion of the pixel structure, an efficient white emission OLED is essential to integrate the device onto the active matrix backplane. The development of these technologies enables OLED displays to fulfill the requirements for larger size applications such as HDTVs

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5.0 inch WVGA Top Emission AMOLED Display for PDA

  • Lee, Kwan-Hee;Ryu, Seoung-Yoon;Park, Sang-Il;Ryu, Do-Hyung;Kim, Hun;Song, Seung-Yong;Chung, Bo-Yong;Park, Yong-Sung;Kang, Tae-Wook;Kim, Sang-Chul;Cho, Yu-Sung;Park, Jin-Woo;Kwon, Jang-Hyuk;Chung, Ho-Kyoon
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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    • pp.7-10
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    • 2003
  • Samsung SDI has developed a full color 5.0" WVGA AMOLED display with top emission and a super fine pitch of 0.1365mm(l86ppi), the world's highest resolution OLED display ever reported to date. Scan driver circuits and demux circuit were integrated into the display panel, using low temperature poly-Si TFT CMOS technology, and data driver circuit were mounted using COG chips. Peak luminescence was greater than 300cd/ $m^2$ with power consumption of 500mW with 30% of the pixels on illuminated.

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