Abstract: A projection system includes a light source device, an imaging unit, and a projector. The light source device includes a projection surface including a reference area, and emits light including non-visible light and visible light from the reference area. The imaging unit receives non-visible light and captures an image of the projection surface. The projector projects a projection image of visible light on the projection surface based on the captured image captured by the imaging unit.

Abstract: A projection system includes a light source device, an imaging unit, and a projector. The light source device includes a projection surface including a reference area, and emits light including non-visible light and visible light from the reference area. The imaging unit receives non-visible light and captures an image of the projection surface. The projector projects a projection image of visible light on the projection surface based on the captured image captured by the imaging unit.

Abstract: A plasma display panel includes an effective display region and a non-display region disposed outside the effective display region. A front plate includes sustain electrodes and scan electrodes, over a region corresponding to the effective display region and a region corresponding to the non-display region. Each of the plurality of the sustain electrodes includes a first part, a second part disposed away from the first part, and a third part for electrically coupling the first part with the second part. Moreover, the each of the plurality of the sustain electrodes is such that each of the first part and the second part includes a detached part in the region corresponding to the non-display region. The detached parts included in one of the sustain electrodes are disposed at different positions from each other in an extension direction of the sustain electrodes.

Abstract: A reactor includes a core body having a U-shape block core and an I-shape block core arranged with a gap, a coil wound on an outer circumference of the core body, and a gap plate inserted into the gap between the U-shape block core and I-shape block core. The gap plate includes a coil retaining member extending towards and retaining the coil. By such a configuration, a reactor having temperature increase at the coil suppressed can be provided.

Abstract: A rear plate has a display region, and a non-display region provided around the display region. The rear plate further has a plurality of connection terminal parts, a plurality of middle connection wiring groups, a plurality of electrodes, an insulating layer, and a barrier rib. The plurality of connection terminal parts is provided in the non-display region so as to be spaced out each other. The plurality of middle connection wiring groups is provided in the non-display region so as to be spaced out each other. The middle connection wiring group includes a plurality of middle connection wirings. A dummy part is provided between the plurality of middle connection wiring groups. A lower layer of the barrier rib has the electrode and at least one part of the middle connection wiring group and at least one part of the dummy part.

Abstract: A plasma display panel has a sealed part where peripheral portions of a front plate and a rear plate are sealed to each other with a sealing member. The sealed part includes bead which regulates any gap formed between the peripheral portions of the front plate and the rear plate. A dielectric layer is formed as far as location of the bead but an insulator layer is formed short of the location of the bead in the sealed part on the side of a direction where display electrodes extend. The insulator layer is formed as far as the location of the bead but the dielectric layer is formed short of the location of the bead in the sealed part on the side of a direction where data electrodes extend. The bead has a diameter larger than a thickness of the dielectric layer and a height of barrier ribs summed with each other and at most twice as large as the thickness of the dielectric layer and the height of the barrier ribs summed with each other.

Abstract: 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 (15b, 15g and 15r) 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.

Abstract: 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 (15b, 15g and 15r) 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.

Abstract: 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.

Abstract: 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 (15b, 15g and 15r) 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.

Abstract: 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 (15b, 15g and 15r) 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.

Abstract: 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 (15b, 15g and 15r) 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.

Abstract: A vacuum chamber according to the present invention has a plurality of plates arranged to be joined together by using bolts to form an internal space, a sealing member continuously disposed along joint lines on the inside portion of the vacuum chamber facing the internal space in order to seal joint portions among the plates, and pressing members secured to the plates by bolts so as to hermetically press the sealing member against the joint portions among the plates.