Matsushita Electric Industrial Co., Ltd.

Matsushita Electronics Corporation

Taichi Shino

Kazunori Hirao

Takio Okamoto

Yukiharu Ito

Takao Wakitani

Toru Hirayama

Koichi Itsuda

Kenji Kiriyama

Koji Aoto

Koichi Wani

Yoshihito Tahara

Naoki Kosugi

Shinya Fujiwara

Shigeo Kigo

Tadayuki Masumori

Hajime Mae

An alternating current (AC) plasma display panel is provided that emits little electromagnetic waves and which has no brightness irregularity. In this panel, pairs of scan electrodes and sustain electrodes are provided in rows, and data electrodes arranged orthogonally to the pairs of scan electrodes and sustain electrodes constitute a matrix. A conductor is disposed in each row in parallel with the scan electrodes and the sustain electrodes. The scan electrodes are coupled with a scan electrode driving circuit on the left side of the panel. The conductors are electrically coupled with the sustain electrodes on the right side of the panel and are connected with a sustain electrode driving circuit on the left side of the panel. When a sustain pulse voltage is applied, a current runs through the conductors in a direction reverse to a direction of the sustaining discharge current running through the scan electrodes and the sustain electrodes.

AC plasma display panel

Disclosed is an AC plasma display device for preventing an error discharge, improving a luminous intensity, and applicable to high definition display. The device includes a front substrate, which has display electrodes in parallel to each other and a non-display line. The line and the display electrode are arranged alternately each other on the front substrate. Further, the device comprises a rear substrate, which has a plurality of data electrodes extending in a direction perpendicular to the display electrodes. The rear substrate forms a discharge space between itself and the front substrate, defines a gap of the discharge space, and has a partition in a belt shape placed between adjoining data electrodes. Furthermore, the rear substrate has a barrier between the partitions at a position facing to the non-display portion so as to have width corresponding to the non-display portion, form a gap between itself and the front substrate, and prevent an error discharge between the display electrodes.

AC plasma display device

An AC type plasma display panel is designed so as to have the relationships of Wb>Wg>Wr and Db>Dg>Dr, where Wb, Wg and Wr denote the widths of blue, green and red discharge cells and Db, Dg and Dr denote the widths of address electrodes ( and ) corresponding to respective colors. As a result, it is possible to adjust the electric charge stored in the discharge cells due to a write discharge according to colors, thereby making complete lighting write voltages of the discharge cells uniform. This achieves the AC type plasma display panel with an excellent display quality that has less occurrence of erroneous discharge and discharge flicker and an improved white display quality.

AC type plasma display panel

An AC plasma display panel in which variation in display luminance and occurrence of error display are suppressed is provided. A first insulating substrate and a second insulating substrate are positioned opposing each other. On the first insulating substrate, a scanning/sustain-electrode group including a plurality of sets of a scanning electrode and a sustain electrode that are arranged in parallel to each other and a dielectric layer covering the scanning/sustain-electrode group are provided. A plurality of data electrodes that are orthogonal to and opposing the scanning electrode and the sustain electrode are provided on the second insulating substrate. Discharges between the scanning electrode and the sustain electrode allow phosphors to emit light. Each of the plurality of sets includes, as a unit, the scanning electrode and the sustain electrodes positioned on both sides of the scanning electrode, and the plurality of sets are separated from one another.

AC plasma display panel having scanning/sustain electrodes of particular structure

An AC plasma display panel includes a plurality of parallel scan electrodes and a plurality of parallel sustain electrodes. Each of sustain electrodes is extended parallel to scan electrodes. Scan and sustain electrodes are positioned alternately so that each one of scan and sustain electrodes positions adjacent to and paired with the other of scan and sustain electrodes. Also, the panel includes a plurality of parallel data electrodes. The data electrodes extend substantially perpendicular to scan and sustain electrodes. Scan and sustain electrodes are applied with a certain current so that an electromagnetic noise generated in the electrodes can be cancelled by another.

AC plasma display apparatus

In a plasma display device having a three-dimensional matrix wiring arrangement of anodes, cathodes and address electrodes, writing discharge is caused between anodes and address electrodes to temporarily store writing charge on a dielectric layer, and the writing charge is discharged as an auxiliary discharge by applying a sustaining voltage to the cathodes, thereby inducing main discharge between the anodes and the cathodes.

Plasma display device and method for driving the same

A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth. The comb-like scanning electrodes and the comb-like sustaining electrodes are opposed to each other with a small gap interposed therebetween in the manner that the teeth thereof are in engagement with each other. In such a case, the data electrodes are located opposed to and in a longitudinal direction of the teeth of the scanning electrodes.

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Nara, Japan

Taichi Shino