Patents by Inventor Yumiko Tsubo

Yumiko Tsubo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TFT-LCD device having a reduced feed-through voltage
    Patent number: 6831295
    Abstract: A TFT-LCD device has a plurality of scanning lines formed by a first level metallic layer, a plurality of data lines formed by a second level metallic layer, and an array of pixels each having a TFT and a pixel electrode made of a third level ITO layer. Each pixel further includes a shied ring formed by the second level metallic layer for suppressing variance in the parasitic capacitances formed between the pixel electrode and other conductive layers. The suppression of the variance in the parasitic capacitances reduces the feed-through voltage, thereby improving the display performance of the TFT-LCD device.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: December 14, 2004
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Yumiko Tsubo
  • TFT-LCD device having a reduced feed-through voltage
    Publication number: 20020057396
    Abstract: A TFT-LCD device has a plurality of scanning lines formed by a first level metallic layer, a plurality of data lines formed by a second level metallic layer, and an array of pixels each having a TFT and a pixel electrode made of a third level ITO layer. Each pixel further includes a shied ring formed by the second level metallic layer for suppressing variance in the parasitic capacitances formed between the pixel electrode and other conductive layers. The suppression of the variance in the parasitic capacitances reduces the feed-through voltage, thereby improving the display performance of the TFT-LCD device.
    Type: Application
    Filed: November 8, 2001
    Publication date: May 16, 2002
    Inventor: Yumiko Tsubo