Matsushita Electric Industrial Co., Ltd.

Katsutoshi Shindo

Akira Shiokawa

Nobuaki Nagao

Ryuichi Murai

Koji Akiyama

Hidetaka Higashino

Kenji Ogawa

Yuusuke Takada

Kanako Miyashita

Toshikazu Wakabayashi

Koichi Kotera

Takatsugu Kurata

Shigeyuki Okumura

Tetsuya Imai

Junpei Hashiguchi

A gas discharge panel capable of high-speed driving at a low drive voltage, while suppressing the occurrence of write errors in a write period, and a manufacturing method for the same. To achieve this, in the gas discharge panel of the present invention, a secondary gas formed from at least one of carbon dioxide, water vapor, oxygen and nitrogen is induced into discharge spacesevacuated until the residual gas pressure is 0.02 mPa or less, and an He&#x2014;Xe or Ne&#x2014;Xe rare gas (discharge gas) is induced into discharge spaces. The amount of the secondary gas included within discharge spaceswhen, for example, carbon dioxide is included therein, is suitably set in terms of both a discharge starting voltage and an electron emission ability, so that the partial pressure of the carbon dioxide is in a range of 0.05 mPa to 0.5 mPa inclusive.

Gas discharge panel and manufacturing method for the same

The present invention provides a plasma display device for displaying a high quality image, and its driving method, with which the production cost and power consumption may be reduced and write errors may be suppressed. In the driving method, the length of the erase period Dis T+160 &#x3bc;sec, based on the number of sustain pulses being greater than or equal to 25 and less than 50 in the discharge sustain period C. The length is set by a Tsetting unit according to the information on the number of the sustain pulses sent from a preprocessor in a driving unit, and a Ttable stored in a Ttable storage unit. The Tsetting unit sets T=160 &#x3bc;sec referring to an extension time period Tcorresponding to the number of sustain pulses that is greater than or equal to 25 and less than 50 in the Ttable.

Plasma display panel display and its driving method

A plasma display apparatus has a waveform of a driving voltage supplied from a driver. The waveform has a sustaining period when a sustaining pulse is alternately applied to scanning electrodes and sustain electrodes for keeping discharge. Besides, the waveform has an erasing period when a ramp voltage pulse whose polarity differs from that of a sustaining pulse is applied to an electrode, which differs from an electrode where a last pulse of the sustaining pulse is applied. As a result, false discharge is prevented, and a stable image can be displayed.

Plasma display apparatus

A surface-discharge type display device is provided that can reduce power consumption during sustain discharge and suppress the occurrence of illumination failures. A display electrode and a display scan electrode are aligned on a substrate, and a dielectric layer is formed on the substrate so as to cover the display electrode and the display scan electrode. An area having a lower relative permittivity than the dielectric layer is formed in an area surrounded on three sides by the display electrode, the display scan electrode, and the substrate. The dielectric layer allows sufficient wall charges for surface discharge to be accumulated, whereas the lower relative permittivity area allows the capacitance between the display electrode and the display scan electrode to be decreased. Accordingly, the power consumption during sustain discharge is reduced without causing illumination failures.

Surface-discharge type display device with reduced power consumption and method of making display device

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Higashiosaka, Japan

Katsutoshi Shindo