Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2008-10-30
2011-12-20
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S174000
Reexamination Certificate
active
08081168
ABSTRACT:
A detection resolution is improved in a display device that employs an electrostatic capacity coupling type touch panel provided with a transparent conductive film serving as a detection film. A plurality of electrode terminals (102) is provided such that at least three electrode terminals (102) are aligned in each side of a detection transparent conductive film (101). A touch panel control circuit is provided for selecting one of two to four numbers of electrode terminals from among the plurality of electrode terminals (102) of the detection transparent conductive film (101), applying an AC signal provided from a signal source (105) through a current detection resistor (r) (103), and then detecting a current that flows through each of the selected electrode terminals.
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Furuhashi Tsutomu
Kinoshita Masayoshi
Kumagai Toshiyuki
Mamba Norio
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Displays Ltd.
Mengistu Amare
Panasonic Liquid Crystal Display Co., Ltd.
Xavier Antonio
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