Patents Represented by Attorney Robinson Intelletual Property Law Office, P.C.

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  • Light emitting device
    Patent number: 7145177
    Abstract: There is provided a light emitting device including a TFT having a high driving capacity (on current) and high reliability in a driver circuit and a TFT in which an off current is reduced in a pixel portion. In manufacturing the TFTs, after the TFT having an LDD region is formed, a part of a gate electrode is etched to form the TFT having a GOLD region. Thus, the TFTs having required functions can be easily formed in the driver circuit and the pixel portion, respectively, on the same substrate.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: December 5, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Etsuko Fujimoto, Satoshi Murakami, Kazutaka Inukai