Title:
DRIVING CIRCUIT AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/115095
Kind Code:
A1
Abstract:
A first impedance control circuit (41) includes a plurality of capacitors connected in parallel to a first transistor (Q1), and a second impedance control circuit (42) includes a plurality of capacitors connected in parallel to a second transistor (Q2). The capacitors (C11-C1n) of the first impedance control circuit (41) have different capacitance values, respectively, and the capacitors (C21-C2n) of the second impedance control circuit (42) have different capacitance values, respectively. The capacitors of the first impedance control circuit (41) have different self-resonant frequencies, respectively, and the capacitors of the second impedance control circuits (42) have different self-resonant frequencies, respectively. Switching noise, which is generated from the first and the second transistors (Q1, Q2) and have a plurality of frequencies, is absorbed by a power supply terminal and a grounding terminal through the first and the second impedance control circuits (41, 42).
Inventors:
YAMATE KAZUNORI
Application Number:
PCT/JP2006/308046
Publication Date:
November 02, 2006
Filing Date:
April 17, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
YAMATE KAZUNORI
YAMATE KAZUNORI
International Classes:
G09G3/20; G09G3/28; G09G3/291; G09G3/294; G09G3/296; G09G3/298; H03K17/16; H03K17/687
Domestic Patent References:
| WO2001035383A1 | 2001-05-17 |
Foreign References:
| JPS63101897A | 1988-05-06 | |||
| JPH1185099A | 1999-03-30 | |||
| JPH03183211A | 1991-08-09 | |||
| JP2001024491A | 2001-01-26 | |||
| JP2003111474A | 2003-04-11 | |||
| JPH0645899A | 1994-02-18 |
Other References:
See also references of EP 1876579A4
Attorney, Agent or Firm:
Fukushima, Yoshito (4-1 Hiroshiba-ch, Suita-shi Osaka 52, JP)
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