Abstract: To provide a sintered alloy valve guide having high thermal conductivity and excellent wear resistance, which can be used in engines subjected to a large thermal load due to downsizing, direct injection and supercharging, the sintered alloy has a composition comprising by mass 10-90% of Cu, 0-10% of Cr, 0-6% of Mo, 0-8% of V, 0-8% of W, and 0.5-3% of C, the balance being substantially Fe and inevitable impurities, the total amount of Cr, Mo, V and W being 2% or more, and a structure comprising an Fe-based alloy phase, a Cu or Cu-based alloy phase, and a graphite phase.

Abstract: In a valve seat made of an iron-based, composite sintered alloy having hard particles and a solid lubricant dispersed therein to have high wear resistance and good machinability, which is usable in high-power fuel direct injection engines with improved fuel efficiency and low emission, relatively coarse solid lubricant particles in such an amount as not to drastically reduce the strength of a sintered body are dispersed to provide self-lubrication, and as fine solid lubricant particles as not hindering the bonding of matrix particles are dispersed to improve machinability.

Abstract: A valve seat of an iron-based sintered alloy having high wear resistance in a wide temperature range, which can be used in direct injection engines with improved fuel efficiency, low emission and high power, is obtained by limiting the amount of a solid lubricant dispersed in the matrix of the valve seat of an iron-based sintered alloy, and dispersing at least two types of hard particles having different hardnesses in the matrix, thereby providing high strength and self-lubrication, as well as improved wear resistance under no lubrication in a wide temperature range.

Abstract: The present invention is directed to the provision of an FSC type color display device wherein the frame frequency is set within a range of 20 Hz to 59 Hz, and a portable electronic appliance incorporating such a display device. The color display device according to the present invention includes a plurality of light sources, which emit respectively different colors, and a light source controller for sequentially and selectively emitting of predetermined light source within the plurality of light sources, and repeating the sequential and selective emitting with a predetermined cycle, wherein a frequency of the predetermined cycle is set so that, when the color display device is held stationary, the colors emitted from the plurality of light sources are not visible as separate colors, but when the color display device is in motion, the colors emitted from the plurality of light sources are visible as separate colors.

Abstract: In a valve seat made of an iron-based, composite sintered alloy having hard particles and a solid lubricant dispersed therein to have high wear resistance and good machinability, which is usable in high-power fuel direct injection engines with improved fuel efficiency and low emission, relatively coarse solid lubricant particles in such an amount as not to drastically reduce the strength of a sintered body are dispersed to provide self-lubrication, and as fine solid lubricant particles as not hindering the bonding of matrix particles are dispersed to improve machinability.

Abstract: The present invention suppresses the generation of a leak current that accompanies the polarity inversion of the voltage waveform of the opposing electrode. The display device that performs display by sequentially scanning a plurality of scan signal lines in a single cycle period comprises: a plurality of data signal lines that intersect the scan signal lines; a pixel electrode that is connected to the data signal lines; and an opposing electrode that is disposed opposite the pixel electrode and for which the polarity of an application voltage is inverted in each of the cycle periods. The cycle period includes a scan period in which one full scan of the scan signal lines is performed and a non-scan period in which the scan signal lines are not scanned.

Abstract: The object of the invention is to provide an FSC display apparatus that can easily achieve color balance. The display apparatus (1) according to the present invention, which includes a light source (30) for emitting a plurality of colored lights in sequence and in a repetitive manner and a display section (14) for controlling transmission or reflection of the lights emitted from the light source, produces a color display by dividing each field into a plurality of subfields and by causing a designated one of the plurality of colored lights to be emitted at least during a part of a period within the plurality of subfields thereby displaying on the display section an image corresponding to the designated colored light, wherein each of the subfields includes at least a data writing period for writing display data to the display section and a light-emission period for emitting the designated colored light, and the end timing of the light-emission period can be set in a variable manner.

Abstract: The object of the invention is to provide an FSC display apparatus that can easily achieve color balance. The display apparatus (1) according to the present invention, which includes a light source (30) for emitting a plurality of colored lights in sequence and in a repetitive manner and a display section (14) for controlling transmission or reflection of the lights emitted from the light source, produces a color display by dividing each field into a plurality of subfields and by causing a designated one of the plurality of colored lights to be emitted at least during a part of a period within the plurality of subfields thereby displaying on the display section an image corresponding to the designated colored light, wherein each of the subfields includes at least a data writing period for writing display data to the display section and a light-emission period for emitting the designated colored light, and the end timing of the light-emission period can be set in a variable manner.

Abstract: The present invention is directed to the provision of an FSC type color display device wherein the frame frequency is set within a range of 20 Hz to 59 Hz, and a portable electronic appliance incorporating such a display device. The color display device according to the present invention includes a plurality of light sources, which emit respectively different colors, and a light source controller for sequentially and selectively emitting of predetermined light source within the plurality of light sources, and repeating the sequential and selective emitting with a predetermined cycle, wherein a frequency of the predetermined cycle is set so that, when the color display device is held stationary, the colors emitted from the plurality of light sources are not visible as separate colors, but when the color display device is in motion, the colors emitted from the plurality of light sources are visible as separate colors.

Abstract: The present invention suppresses the generation of a leak current that accompanies the polarity inversion of the voltage waveform of the opposing electrode. The display device that performs display by sequentially scanning a plurality of scan signal lines in a single cycle period comprises: a plurality of data signal lines that intersect the scan signal lines; a pixel electrode that is connected to the data signal lines; and an opposing electrode that is disposed opposite the pixel electrode and for which the polarity of an application voltage is inverted in each of the cycle periods. The cycle period includes a scan period in which one full scan of the scan signal lines is performed and a non-scan period in which the scan signal lines are not scanned.

Abstract: An object of the invention is to provide a liquid crystal display apparatus, that achieves excellent color reproducibility with simple circuitry, and a method for driving such a liquid crystal display apparatus. The liquid crystal display apparatus includes a color light source, a liquid crystal display section for controlling transmission or reflection of light emitted from the color light source, a receiving section for receiving pixel data having red color data, green color data, and blue color data, a corrected data generating section for generating corrected red color data, corrected green color data, and corrected blue color data by using at least the red color data, the green color data, and the blue color data, and a liquid crystal driving section for driving the liquid crystal display section by using the corrected red color data, the corrected green color data, and the corrected blue color data.

Abstract: In a display apparatus, the number of wiring patterns to be routed on an interface board (FPC) connected to a display panel is reduced, thus reducing the size of the interface board and thereby reducing the overall size of the display apparatus. The display apparatus includes a display panel which displays a plurality of color component images by sequentially switching from one image to another, a panel driving section which outputs a timing signal and a panel driving signal for driving the display panel, a light source which emits a plurality of colored lights, and a light source driving section which outputs a driving signal for driving the light source in synchronism with the timing signal.

Abstract: Disclosed are a ferroelectric liquid crystal apparatus using a swing power supply, and a driving method for the ferroelectric liquid crystal apparatus, wherein the pulse duration of a scanning electrode driving waveform is made shorter than the pulse duration of the swing power supply, and the time from the beginning of a pulse trailing edge of the scanning electrode driving waveform to the beginning of a pulse leading edge of the swing power supply is set equal to or shorter than the period during which the pulse trailing edge of the scanning electrode driving waveform rises or falls while describing a time constant curve.

Abstract: Disclosed are a ferroelectric liquid crystal apparatus using a swing power supply, and a driving method for the ferroelectric liquid crystal apparatus, wherein the pulse duration of a scanning electrode driving waveform is made shorter than the pulse duration of the swing power supply, and the time from the beginning of a pulse trailing edge of the scanning electrode driving waveform to the beginning of a pulse leading edge of the swing power supply is set equal to or shorter than the period during which the pulse trailing edge of the scanning electrode driving waveform rises or falls while describing a time constant curve.

Abstract: A liquid crystal apparatus is provided which incorporates a means for automatically obtaining an optimum drive voltage value for a liquid crystal panel. Drive voltages are applied through a voltage value adjusting circuit (18) to scanning electrodes (17) and signal electrodes (16) provided in the liquid crystal panel (15), and a display is produced on the liquid crystal panel in accordance with the applied drive voltage waveforms. A display capture device (20), which comprises a CCD device (13) and a lens (14), captures an optimum display image from the liquid crystal panel and stores it in a reference memory (10). Further, the display capture device (20) captures a display produced on the liquid crystal panel and stores it in a capture memory (11).

Abstract: A liquid crystal device used for electro-optical devices, in which each parameter of the liquid crystal having layer structures is specified to provide a liquid crystal high in stress resistance and capable of gray scale display. The liquid crystal held between a pair of parallel substrates is either ferroelectric or antiferroelectric and represents layer structures. A plurality of substrate interface tilt angles can be set for the layer structures. The layer structures can be configured asymmetric or symmetric about a plane intermediate between the parallel substrates. With this configuration, a liquid crystal device is constructed having a plurality of layer structures including at least one layer structure, which has (1) a substrate interface layer tilt angle of 0.degree. to 3.degree. and the c director pretilt of 3.degree. to 5.degree., or (2) a substrate interface layer tilt angle of 4.degree. to 7.degree. and the c director pretilt of 0.degree. to 3.degree.