• Title/Summary/Keyword: digital switching touch panel

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Investigations of process factors in the sensitivity of embedded digital switching TSP

  • Han, Sang-Youn;Oh, Keun-Chan;Seong, Dong-Gi;Ham, Yeon-Sik;Lyu, Jae-Jin;Cho, Young-Je
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1531-1534
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    • 2009
  • Effect of process factors on the sensitivity of inner-type digital switching TSP was analyzed. From these results, we have successfully fabricated inner-type digital switching TSP embedded in 3.2-inch WQVGA PLS mode LCD panel. During many factors, TFT sensor structure for reducing the PI thickness and a separation distance of $0.3{\mu}m$ between the conductive column spacer (C/S) and TFT sensor were essential. Glass thickness and main C/S density were also important factors. This technology can be applied to wide angle of view hand-held phones, personal digital assistants (PDAs), and tablet PCs.

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An Internal Touch Screen Panel Using Standard a-Si:H TFT LCD process

  • You, Bong-Hyun;Lee, Byoung-Jun;Lee, Ki-Chan;Han, Sang-Youn;Koh, Jai-Hyun;Takahashi, Seiki;Berkeley, Brian H.;Kim, Nam-Deog;Kim, Sang-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.250-253
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    • 2008
  • A touch screen panel embedded 12.1-inch TFT LCD employing a standard a-Si:H TFT process has been successfully developed. Compared with conventional external touch screen panels, the new internal TSP exhibits a clearer image and improved touch feeling. Our new internal proposed TSP can be fabricated with low cost.

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