Panasonic Corporation

Kazuo Oohira

Manabu Inoue

Hidehiko Shoji

Masaaki Kuranuki

Tomohisa Sakaguchi

Hironari Taniguchi

Tosikazu Nagaki

A scan IC includes a switch circuit and a logic circuit. The switch circuit includes first and second transistors and a level shift circuit. First and second control signals that change between a logical '1' and a logical '0' are applied to an input terminal of the logic circuit. The logic circuit applies a third control signal to the first transistor and applies a fourth control signal to the second transistor based on the applied first and second control signals. A detection circuit is connected to the input terminal of the logic circuit. An abnormality of the scan IC is detected by the detection circuit.

Driving device and driving method of plasma display panel, and plasma display device

A first group of data drivers is connected to a sub-field processor, a first power recovery circuit, and a PDP, and a second group of data drivers is connected to a sub-field processor, a second power recovery circuit, and a PDP. The first and second groups of data drivers apply to the PDP data pulses that differ in phases. The first and second power recovery circuits generate a voltage for generating the data pulses to the first and second groups of data drivers due to LC resonance, and discharge and recover charges to and from the PDP. Recovery potentials of recovery capacitors in the first and second power recovery circuits are changed depending on the number of times of switching between discharges and non-discharges of discharge cells in the PDP.

Display device and drive method thereof

Growing community of inventors

Osaka, Japan

Kazuo Oohira