摘要:
A plasma display apparatus includes an IC that operates with a power supply voltage, of which a difference between a ground potential and a power supply potential is substantially more than 50 V, a ceramic condenser disposed in a vicinity of the IC and coupled between the ground potential and the power supply potential of the IC, and a resistor connected in series with the ceramic condenser between the ground potential and the power supply potential.
摘要:
A display apparatus and display method are provided for a display panel having pixels arranged in a matrix form for displaying an image on a effective display area. Horizontal electrodes and vertical electrodes in the display panel are scanned for selectively illuminating said pixels by using a time sharing drive method in which one field period is divided into plural sub-fields weighted according to a sustaining period. As a result, an effective display area is divided into plural areas, no scanning for selecting a light emitting pixel is executed in a non-display area, and the number of sub-fields is increased in an area in which display in multiple gradations is required in a display area to obtain sufficient gradation. Instead of increasing the number of the sub-fields, the total sustaining period per one field is increased to obtain sufficient brightness. According to a feature of the invention, another area is provided in which the number of sub-fields is limited to the required minimum in which display in multiple gradations is not required. According to other feature of the invention, another area having few sub-fields is prepared instead of providing the non-display area.
摘要:
A plasma display panel for plasma display system provides excellent optical characteristics, including a color purity, contrast, and luminance, of a plasma display system. Barrier ribs forming a cell has wavelength-selective reflective filters for reflecting only a light of wavelength needed for display and absorbing the other lights coated thereon. The wavelength-selective reflective filters have phosphors coated thereon. A color filter is inserted between a first front panel and second front glass panel for feeding out the light in a sandwich state.
摘要:
A plasma display apparatus is disclosed, in which a plurality of pixels are arranged in dot matrix, at least one first electrode specifies the addresses of the pixels, a set of electrodes including a second electrode and a third electrode are arranged in a plurality of pixels for generating a pixel display plasma, and a phosphor member arranged in a plurality of pixels for illuminating light due to the ultraviolet light generated from the pixel display plasma. In the process of driving the plasma display apparatus, the pixel display plasma is erased by applying a plurality of erase pulses with progressively shorter pulse durations and intervals alternately between selected two of the first, second and third electrodes.
摘要:
A 1,4-benzoxazine derivative of the following formula (I): ##STR1## or a pharmaceutically acceptable salt thereof is disclosed. The compound of the present invention is useful as a medicament for preventing or treating disorders induced by intracellular acidosis during myocardial ischemia, such as cardiac dysfunction, myocardial necrosis, arrhythmia, reperfusion injury, and the like, which are observed in ischemic heart diseases (e.g. myocardial infarction, angina pectoris, etc.).
摘要:
Novel piperazine compounds of the formula: ##STR1## wherein either one of R.sup.1 and R.sup.2 is methoxy group and another is hydrogen atom, or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-peptic ulcer activities with potent activity for promoting the action of the defensive factor, and hence are useful as an anti-ulcer agent for the prophylaxis and treatment of peptic ulcers.
摘要:
A 1-benzhydryl-4-cinnamylpiperazine derivative represented by the following formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a methoxy group, and R.sup.2 represents a hydrogen or fluorine atom, or a pharmaceutically acceptable acid addition salt thereof. The compound (I) is prepared by selectively reducing the corresponding 1-benzhydryl-4-cinnamoylpiperazine derivative and optionally converting the product into its acid addition salt. The compound (I) is useful for treatment of cerebrovascular disease in a human.
摘要:
The color reproduction correction circuit which corrects the color distortion caused when color signals using the first combination of the three primary colors are reproduced in a color display of the second combination of the different primary color sources has been disclosed, wherein: a provided color correction circuit generates the mixed color signal by multiplying the color signal in question by the specified coefficients and adding the mixed color signal to other color signals; the mixed colors in the second combination are used as primary color light sources in the second combination; the specified coefficients are determined so that these mixed color light sources are made close to the coordinates of the primary color light sources of the first combination; and the luminescent chromaticity values of the three primary colors are corrected so that the chromaticity values of the device match those specified by the signal system.
摘要:
A display apparatus uses a sub field which illuminates addressed pixels of a display unit to display an image. The display apparatus includes an image signal processing circuit which performs sub field conversion processing on an input image signal, a computational processing circuit which arranges address data of at least one lower sub field of an image displayed on the display unit identical in plural lines, and a drive circuit which addresses and illuminates pixels of the display unit based on the outputs of the input signal processing circuit and the computational processing circuit. An image corresponding to the input image signal is displayed by driving the display unit with the drive circuit when the computational processing circuit performs addressing of the at least one lower sub field simultaneously in plural lines and address periods which select the illuminated pixels of said display unit are shortened.
摘要:
This specification and drawings disclose a display technology which displays an image by illuminating pixels of a display unit. The apparatus comprises an image signal processing circuit which processes an input image signal, a control circuit which controls display resolution information relating to the image displayed on the display unit, and a drive circuit which drives the display unit based on the output of an input signal processing circuit and the control circuit. The display resolution information is limited by the control circuit, and an image corresponding to an input image signal is displayed on the display unit when a time during which illuminated pixels are selected on the display unit, is shortened.