Abstract: An apparatus discriminates a color format. The signal processing paths separate a luminance signal and a color signal from a broadcasting signal based on a plurality of color formats. The direct signal path provides a direct output of the broadcasting signal without separating the luminance signal and the color signal therefrom. The relay device selectively relays the broadcasting signal as input to any one of the respective signal processing paths and the direct signal path. The detection device detects color format variation of the broadcasting signal based on an output signal from the signal processing paths. The discrimination device discriminates the color format of the broadcasting signal based on the broadcasting signal as input through the direct signal path. The control device controls the relay device to relay the broadcasting signal to the direct signal path when color format variation is detected by the detection device.

Abstract: 1 An optical recording medium for accurately deriving the address information or the disc rotation control information despite narrow track pitch and for recording signals to a high density, and a method and apparatus for recording and/or reproducing such optical recording medium. The optical recording medium has a wobbled groove and pits formed at a pre-set interval in an area between turns of the wobbled groove. The recording/reproducing method includes controlling rotation of the optical recording medium by a wobbled signal from the groove and detecting the position on the optical recording medium of a recording signal by pit signals detected from the pits. The recording/reproducing apparatus includes a detection device for detecting the wobbled signal from the groove and a detection device for detecting pit signals from the pits.

Abstract: A PDP driving apparatus having a resonance driver of a PDP electrode for shortening a time required to display an image since the power-up. A power collecting capacitor included in each electrode resonance driver is charged rapidly to a predetermined potential upon power-up of the PDP driving apparatus by allowing each electrode resonance driver to drive electrodes by means of excitation. Also, while the power collecting capacitor included in the row electrode pair driver is charged, charge driving pulses in-phase and of the same polarity are applied respectively to corresponding two electrodes to drive these electrodes by means of excitation.

Abstract: A panel drive device is provided with: a shift register for sequentially storing address data according to second clock pulses; a latch circuit for latching the address data stored in the shift register; and a drive circuit for driving a display panel based on the address data output from the latch circuit. Supply of the second clock pulses to the shift register is interrupted after a regular timing for causing the latch circuit to latch predetermined address data stored in the shift register.

Abstract: A flat display panel has a ventilation hole formed in a back glass substrate facing a front glass substrate with a space in between, and provides communication between the space and the exterior. A ventilation duct is connected to the ventilation hole and secured with a pressed frit to the outer face of the back glass substrate. The ventilation duct has a flange formed at one end thereof connected with the back glass substrate. The pressed frit having a ventilation hole is sandwiched between the flange and the back glass substrate, and fused to the flange and the back glass substrate in order for the ventilation duct to be secured to the back glass substrate.

Abstract: The present invention provides a plasma display driving method and driving device which can improve image display contrast. The method comprises an address step for shifting the discharge cells into an emission enable state when the discharge cells corresponding to each pixel of the plasma display panel are in an emission disable state, by selectively causing the discharge cells to perform a selective writing discharge in accordance with the pixel data of each pixel, based on a video signal, thus generating wall charges in the discharge cells; and, on the other hand, when the discharge cells are in an emission enable state, shifting the discharge cells into an emission disable state by selectively causing the discharge cells to perform a selective erasing discharge in accordance with the pixel data, thus erasing the wall charges in the discharge cells; and an emission sustain step for causing only those discharge cells which are in the emission enable state to emit light repeatedly.

Abstract: Disclosed is an apparatus for recording and reproducing information and an information reproducing method in which the reproducing operation can be restarted from a position where reproduction was interrupted. The restart is possible for all of information contents recorded on a recording medium and without the need of troublesome operations. For this purpose, reproduction history information representing a reproduction history of each of the information contents recorded on the recording medium is stored in a management memory.

Abstract: In a plasma display panel device including a plasma display panel and a drive circuit for driving the plasma display panel, a plurality of circuit boards (4, 13) are provided, and electronic components (E1′, E1″, E2′) making up the drive circuit are mounted separately on the plurality of circuit boards (4, 13).

Abstract: A plasma display panel comprises a front glass substrate and a back glass substrate. A plurality of row electrode pairs regularly arranged in a column direction, each extending in a row direction to form a display line, and a dielectric layer covering the row electrode pairs are provided on an inner surface of the substrate. A plurality of column electrodes are provided on an inner surface of the substrate, and regularly arranged in the row direction, each extending in the column direction to intersect with the row electrode pairs to form discharge cells in a discharge space at the intersections. A recess groove is formed in a portion of the dielectric layer opposite a discharge gap between paired row electrodes constituting the row electrode pair, so that the dielectric layer has a thickness in the portion opposite the discharge gap smaller than that in portions on both sides of the portion opposite the discharge gap.

Abstract: In a manufacturing process for a plasma display panel, a protective layer 3 formed of MgO is placed in a non-display area of a display space in which introduction of a discharge gas is provided, so as to face the discharge space. Bus electrodes Xb and Yb of row electrodes X and Y are increased in length to continue extending from inside a display area of the plasma display panel into the non-display area, and thus constitute a pair of discharge electrode for causing a discharge in the non-display area of the discharge space in which the introduction of the discharge gas is provided. When the discharge gas is introduced into the discharge gas, a voltage is applied between the discharge electrodes to cause an aging discharge.

Abstract: Provision of a manufacturing method for forming lamination of a plurality of dielectric layers on a substrate of a plasma display panel. A forming process for forming a photosensitive glass material layer and a patterning process for exposing required regions of the resulting photosensitive glass material layer to light are repeated in each formation of a first photosensitive glass material layer L1 and a second photosensitive glass material layer L2. After completion of the individual forming process and the individual patterning process for each of the first and second photosensitive glass material layers L1 and L2, a developing process for removing the unexposed regions and a burning process following the developing process are each performed on both of the first and second photosensitive glass material layers L1 and L2 together.

Abstract: A plurality of row electrode pairs and a dielectric layer are formed on a front glass substrate. A plurality of column electrodes forming discharge cells at the intersections with the row electrode pairs in a discharge space is formed on one of a back glass substrate and the front glass substrate. Each of the discharge cells is defined and separated from another discharge cell adjacent thereto in the column direction by a transverse wall of the partition wall provided between the front glass substrate and the back glass substrate. A black- or dark-colored light absorption layer facing the front glass substrate is formed in each non-light emission area including the transverse walls in the discharge space.

Abstract: Plural first exhaust pipes are disposed as exhaust paths at an upper portion of a heat treatment apparatus. Exhaust gases are discharged from the inside of the heat treatment apparatus to the respective exhaust pipes. Inlets of catalyst units are connected to outlets of the first exhaust pipes, and second exhaust pipes are connected to outlets of the catalyst units. Exhaust gases are discharged from exhaust ports of the second exhaust pipes to the outside (e.g., the atmosphere) of the heat treatment apparatus.

Abstract: A plasma display panel 10 includes a front substrate 11 and a back substrate 17 facing each other with a discharge space held therebetween, the surrounding areas of the substrates 11 and 17 being sealed up with a sealing layer 23, and partition walls 21 for sectioning the discharge space in a display area 31 into a plurality of discharge spaces. An exhaust/lead-in port 25 for exhausting and introducing discharge gas from and into the discharge spaces is provided in the outer peripheral non-display area 32 of one of the front and back substrates 11 and 17 and a lead-in rib 24 for defining a lead-in passage 41 from the exhaust/lead-in port 25 is provided. The dimension 42a of the space between the front substrate 11 and the back substrate 17 in the portion provided with the sealing layer 23 and the lead-in rib 24 is uniformized.

Abstract: Disclosed is an apparatus for recording and reproducing information and an information reproducing method in which the reproducing operation can be restarted from a position where reproduction was interrupted. The restart is possible for all of information contents recorded on a recording medium and without the need of troublesome operations. For this purpose, reproduction history information representing a reproduction history of each of the information contents recorded on the recording medium is stored in a management memory.

Abstract: A seal plate is installed for sealing tightly an exhaust hole provided to a glass substrate of the back side of a PDP (flat display panel). The air is directly exhausted from internal spaces via the exhaust hole and gas is sealed into an enclosure. The seal plate is heat-secured to the exhaust hole so as to seal the internal spaces tightly.

Abstract: Application timing of driving pulses for a PDP is controlled so that a flow direction of a discharge current which flows between a first row electrode and a second row electrode of each of row electrode pairs belonging to odd numbered display lines due to the electrical discharge is opposite to a flow direction of a discharge current which flows between a first row electrode and a second row electrode of each of row electrode pairs belonging to even numbered display lines. Furthermore, an impedance of a current channel for the discharge current which flows between the row electrode pair belonging to the odd numbered display line and the electrode driving means is made substantially the same as an impedance of a current channel for the discharge current which flows between the row electrode pair belonging to the even numbered display line and the electrode driving means.

Abstract: A display and a driving method of a display panel capable of improving a dark contrast.

Abstract: A display apparatus has: a first connecting terminal CA1 which is provided in a first end portion of a flexible cable CA and electrically connected to an electrode terminal of a display panel through a conductive adhesive; and a second connecting terminal CA2 which is provided in a second end portion of the flexible cable CA and electrically connected to a terminal of a drive circuit board 11 for the display panel through a conductive adhesive; and a connector-coupling port CA3 provided in the second end portion of the flexible cable CA for electric connection to a connector 21A provided on a replacement drive circuit board 21.

Abstract: A plasma display apparatus includes a plasma display panel, a circuit board mounting a drive circuit for driving the plasma display panel, a chassis structure provided on the backside of the plasma display panel for supporting the plasma display panel and for mounting the circuit board. In particular, the chassis structure comprises a first chassis member mounting the circuit board, and a second chassis member fixed on the backside of the plasma display panel, a plurality of support portions provided between the first and second chassis members for supporting the two chassis members and for forming a predetermined interval between the two chassis members.