Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2006-03-14
2010-02-09
Tso, Edward (Department: 2858)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S212000, C320S127000
Reexamination Certificate
active
07659892
ABSTRACT:
In order to increase the continuous operating time of a display device driven by a battery or the like, and a portable information terminal using the same, the volume and weight of the battery are increased. Thus, there arises a trade-off between the increased capacity of the battery and the portability of the device/terminal. Therefore, the invention provides a display device with portability ensured, which is capable of operating continuously for long periods and a portable information terminal using the same. In the display device, TFTs and an RFID tag are formed over the same insulating substrate. The RFID tag detects signals from a reader/writer, and generates DC power based on the signals. While the RFID tag is detecting signals, the display device is driven by the DC power generated in the RFID tag.
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Tanada Yoshifumi
Yamazaki Shunpei
Robinson Eric J.
Robinson Intellectual Property Law Offices, P.C.
Ruiz Johali A Torres
Semiconductor Energy Laboratory Co,. Ltd.
Tso Edward
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