• 제목/요약/키워드: Technology development

검색결과 42,611건 처리시간 0.072초

Antiferroelectric Liquid Crystal Display with High Image Quality

  • Yu, Jeong-Seon;Chang, Young-Joo;Yoo, Jeong-Geun;Jeong, Dong-Jin;Park, Sung-Chon;Chae, Su-Yong;Yang, Hong-Geun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.545-547
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    • 2002

  • The antiferroelectric liquid crystal display (AFLCD) is unique display that can show the perfect moving image using the passive matrix driving scheme. We optimized the driving waveform and introduced the dual driving method. Also, by improving this driving method and using line inversion method, we realized AFLC display with high image quality, which has 160(RGB)${\times}$240, 32768colors, crosstalk free and flicker free. The contrast ratio is greater than 60:1, and the brightness is above 200cd/$m^2$.

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Blazed $GxL^{TM}$ Device for Laser Dream Theater at the Aichi Expo 2005

  • Ito, Yasuyuki;Saruta, Kunihiko;Kasai, Hiroto;Nishida, Masato;Yamaguchi, Masanari;Yamashita, Keitaro;Taguchi, Ayumu;Oniki, Kazunao;Tamada, Hitoshi
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.556-559
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    • 2006

  • We successfully developed a high performance and highly reliable blazed GxL device with a high optical efficiency and a high contrast ratio. The device demonstrated superior resistance against a high power laser, which is suitable for a large-area laser projector. We operated the world's largest laser projection screen using this device at the 2005 World Exposition in Aichi, Japan, problem free.

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Improved stability of organic light-emitting diodes with lithium-quinolate doped electron transport layer

  • Choi, Sung-Hoon;Kim, Sang-Dae;Han, Kyu-Il;Lee, Se-Hee;Park, Eun-Jung;Kum, Tae-Il;Jung, Young-Kwan;Lee, Seok-Jong;Lee, Nam-Yang
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.771-774
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    • 2009

  • The Improved stability of organic light emitting diodes (OLEDs) containing lithium-quinolate (Liq) as the ETL doping material is investigated. The lifetime could be improved by threefold using the Liq-doped ETL structure. The improvement was attributed to the Liq-doped ETL, which improved hole-electron balance and has a good electrical stability. Additionally, when the Liq doped device was combined with an Mg/Al cathode, the OLED produced a longer lifetime than other device.

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