Abstract: A method for driving a display panel with which the dark contrast can be improved is provided. Each of at least two successive sub-fields including a leading sub-field includes a selective write addressing step for setting the discharge cells to a lighted discharge cell mode by selectively causing a writing discharge in the discharge cells in accordance with the video signal. The sub-fields following at least two sub-fields include a selective erasure addressing step for setting the discharge cells to an unlighted discharge cell mode by selectively causing an erasing discharge in the discharge cells in accordance with the video signal and an emission sustain step for repeatedly causing a sustain discharge corresponding to a weighting of that sub-field only in the discharge cells that are in the lighted discharge cell mode.

Abstract: A display panel includes row and column electrodes. Capacitive light-emitting elements are provided at crossing portions of the row and column electrodes. A drive unit drives the display panel in response to an input image signal. The drive unit includes a column electrode driver for applying a pixel data pulse to each of the column electrodes. The pixel data pulse has a pulse voltage corresponding to pixel data derived from the input image signal. The column electrode driver includes a power source circuit for generating a resonance pulse power source voltage having a predetermined resonance amplitude. The power source circuit also applies the. resonance pulse power source voltage to a power source line. The column electrode driver also includes a pixel data pulse generator circuit for selectively connecting the column electrodes with the power source line based on the pixel data, to apply the pixel data pulse to the column electrodes.

Abstract: A plasma display panel comprises a plurality of row electrode pairs (X, Y) and a dielectric layer 12 covering the row electrode pairs (X, Y) provided on a front glass substrate 10, and also column electrodes D provided on a back glass substrate 13 to intersect with the row electrode pairs (X, Y) so as to form display discharge cells C1 in a discharge space at the intersections. A discharge area C2 is formed between the adjacent display discharge cells C1 in the column direction to provide for a discharge created between the back to back row electrodes X and Y of the adjacent row electrode pairs (X, Y). A recess groove 12A is formed in a portion of the dielectric layer 12 opposite each discharge area C2.

Abstract: A video signal processing apparatus which performs a frame-rate conversion of a progressive line-scan video signal based on a film source of M film frames per second (wherein M is a natural number) into a video signal in which a same film frame is repeated N times for each 1/M second, and mixes, frame by frame, a video signal of a preceding frame and a video signal of a following frame of the converted progressive line-scan video signal. Thus, the display quality of telecine-converted images can be improved.

Abstract: A driving method for a plasma display panel realizes a high quality display at low power consumption while restraining a false contour. After a selective discharge for setting discharge cells to a light-on state or a light-off state is generated in one subfield of N subfields constituting each field, the selective discharge is generated again only in subfields placed at predetermined positions from the beginning of each field.

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: An information recording and reproducing apparatus with a ring buffer, in which user can know a state of the ring buffer in a real-time manner and a monitoring method of the ring buffer. A ring buffer monitor image signal is generated which indicates an image showing a relative positional relation of a current recording position and a current reproducing position in the ring buffer.

Abstract: By the control information recording method, control information to control at least one of recording and reproducing operations of record information on an information record medium is recorded onto a guide track of the information record medium. The control information recording method is provided with the steps of: generating a control information timing signal one after another at an interval corresponding to a length of a control information unit equal to an N (N: predetermined integer not less than 2) multiple of a length of a record information unit of the record information; and recording the control information onto the guide track of the information record medium, on the basis of a timing corresponding to the control information timing signal.

Abstract: A display panel includes a plurality of unit light emission areas (light emission elements) arranged in a matrix. Each unit light emission area is defined by a first discharge cell and a second discharge cell. The second discharge cell has a light-absorbing layer. When the display panel is driven to express an image having a plurality of gradation levels, address discharge is selectively caused in the second discharge cells in accordance with an input image signal. Light leaks to the first discharge cell from the second discharge cell upon the address discharge. This light is used to express the gradation of low luminance. Since luminance difference between gradation levels of a low luminance image is reduced, it is possible to display a high quality, low luminance image.

Abstract: This invention provides a drive method and an drive apparatus for a display panel that continuously maintain good image quality when the display panel is used for a long period of time. Based on the image data that are output from the A/D converter, an APL (Average Picture Level) calculation unit calculates the average brightness level for one field, and then a total light emission calculation unit uses the APL calculates the total number of times light is emitted. Based on the total light emissions or the total usage time, the control unit controls the voltage of drive pulses for the X-sustain driver and Y-sustain driver, or the timing at which they are applied, in order to compensate for changes over time of the PDP.

Abstract: A display panel device includes a plurality of row electrode pairs and a plurality of column electrodes. Each row electrode pair includes a first and second electrodes. Unit light emission areas are formed at intersections of the row electrode pairs and the column electrodes. Each unit light emission area includes a first discharge cell and a second discharge cell. The second discharge cell includes a light-absorbing layer and secondary electron emission material layer. When driving the display panel device, sustain discharge responsible for light emission governing the display image is induced in the first discharge cells, whereas reset discharge and address discharge accompanied by light emission not contributing to the display image is induced in the second discharge cells.

Abstract: A display apparatus in which one of periods of time of a plurality of subfields is sequentially designated within a display period of time of one field, one line is sequentially designated for the purpose of sequentially scanning all lines within the period of time of each subfield, data of one designated line in pixel data of one field stored in a field memory is read, the pixel data of each pixel of one line is individually converted into bit train data showing light emission or non-light emission of each of the plurality of subfields, each bit corresponding to the period of time of the designated subfield in the bit train data of each pixel of one line is generated in parallel, and a display panel is driven in accordance with the parallel output bits, the designated period of time of one subfield, and one designated line.

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

Abstract: A plasma display panel capable of improving dark contrast. A unit light emission region is comprised of a display discharge cell in which a discharge is produced between portions of row electrodes X, Y of each row electrode pair (X, Y) opposing each other, and a reset and address discharge cell arranged in parallel with the display discharge cell, in which a discharge is produced between portions of the row electrode Y and a row electrode X of another adjacent row electrode pair (X, Y). The display discharge cell and reset and address discharge cell are communicated with each other. A light absorbing layer is formed in a portion of the reset and address discharge cell opposing the display surface. According to another aspect, the unit light emission region in the display panel comprises a first discharge cell and a second discharge cell comprising a light absorbing layer.

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 first positioning mark is formed at four corners of the outer side of the display area of a front substrate at the same step as the step of forming transparent electrodes. The first positioning marks are made of the same material as the material of transparent conductive films and formed in the same layer as a layer in which the transparent electrodes are formed. A second positioning mark is formed at four corners of the outer side of the display area of a back substrate at the same step as the step of forming partition walls. The second positioning marks are made of the same material as the material of glass layers containing white pigments and formed in the same layer as a layer in which the partition walls are formed. The positioning of the transparent display electrodes as well as the partition walls are directly carried out.

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: It is an object of the present invention to provide a display panel driver with which power consumption can be reduced. The display panel driver includes a pixel data pulse generation circuit which generates pixel data pulses by connecting the column electrodes and a power source line in accordance with the pixel data to apply the pixel data pulses to the column electrodes, and a resonance pulse power circuit which generates a resonance pulse power source voltage to apply the resonance pulse power source voltage to the power source line, the resonance pulse power circuit changing the resonance amplitude of the resonance pulse power source voltage while keeping a maximum voltage of the resonance pulse power source voltage in accordance with a pattern of a pulse sequence of the pixel data pulses.

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: The plasma display panel (PDP) unit of the present invention comprises a PDP drive circuit for supplying drive power to a display panel and a control portion for controlling the drive power. The control portion includes a power correction value generating circuit for generating a power correction value and the PDP drive circuit contains a voltage adjusting circuit for outputting the drive power based on the power correction value.