Abstract: A voltage switch-over circuit, depending on a switch-over signal, delivers either a first voltage Vpp or a second voltage Vcc at its output, the voltage Vpp being greater than the voltage Vcc. The said circuit consists of a first MOS transistor with one of its electrodes connected to the voltage Vcc and a set of two series-connected MOS transistors with one of their electrodes connected to the voltage Vpp and with their two gates connected together so as to create a floating node at the common point between the two MOS transistors, the other electrode of the first MOS transistor and the other electrode of the set of two MOS transistors being connected together, and the gates of the first MOS transistor and those of the set of two MOS transistors respectively receiving the switch-over signal and the reverse switch-over signal.

Abstract: A liquid crystal apparatus in which an anisotropic conductive layer made of organic resin containing several electrically conductive particles having substantially identical particle sizes is disposed between lead electrodes of a liquid crystal device and the lead electrodes of a drive circuit board, thermocompression bonding being applied to make the electrically conductive particles in direct contact with both lead electrodes to allow both lead electrodes to be electrically connected with each other. Further, at least one of the lead electrodes of a common electrode in the liquid crystal device and of the circuit board corresponding to the common electrode includes a number of separated electrodes that are spaced apart, and the pitches and widths of the separated electrodes are in the range of .+-.30% around the average values for pitch and width for the separated electrodes.

Abstract: The liquid crystal apparatus has a segment substrate and a common substrate. Segment electrodes are formed on the segment substrate, while common electrodes are formed on the common substrate. A liquid crystal composition is sealed between the segment and common substrates with a seal member. The segment and common electrodes, the liquid crystal composition and the seal member constitute an elongated shatter portion including light shutters arranged in two rows. Liquid crystal reservoir portions are formed between the substrates and coupled to the shutter portion. The liquid crystal reservoir portions are resilient and thus can be deformed to suppress a change in the pressure applied on the liquid crystal composition due to a change in the volume of the liquid crystal composition. As a result, the formation of bubbles in the shutter portion can be prevented.

Abstract: Liquid crystal display units are finding increasing application in electrical appliances used for communications. If the appliance is for example a handset for a mobile radio transceiver and is held in a cradle on the dashboard, the angle of observation will change depending on whether the receiver is placed in the cradle or held in the hand. To ensure that the recognizability of the displayed information is not impaired upon a change in the position of the receiver, a control circuit automatically changes the contrast when such a change takes place. The circuitry required for this control is particularly simple when two different voltage values are generated by means of a switchable voltage-divider for two preset positions of the appliance. The switching takes place between the two voltage values in dependence upon the position of the cradle hook switch. The contrast (i.e.

Abstract: A visual display device is disclosed in which a liquid crystal cell is adjacent a light waveguide. Electrodes in the liquid crystal cell alter the dielectric constant therein to change the critical angle defined by the two media of the cell and the waveguide to regulate the amount and location of light which may escape from the waveguide. Color display can be obtained with visible light by providing a dyed layer and with ultraviolet light by providing colored ultraviolet phosphors. A shaped mirror or contoured reflective layer is provided with a visible light device to cause the displayed light to scatter in desired directions.

Abstract: A delay circuit comprising a plurality of clocked inverters coupled cascade form. Each clocked inverter includes a plurality of MOS FETs. The circuit further comprises delay time-controlling MOS FETs connected in parallel to the MOS FETs of the clocked inverters, which are controlled by clock signals. When the delay time-controlling MOS FETs are turned on, the clocked inverters function as ordinary inverters. Conversely, when the delay time-controlling MOS FETs are turned off, the clocked inverters perform their own functions. Hence, one of two different delay times can be selected.

Abstract: A liquid crystal device having a higher durability and a display quality less likely to be degraded, for example, for use in a glare shield reflection mirror. The liquid crystal device comprises: a pair of substrate plates, a liquid crystal layer filled between the pair of substrate plates, and an oblique evaporation film laminated on one of the substrate plates, wherein a protective layer is formed on the boundary surface between the oblique evaporation film and a neighboring component member. The oblique evaporation film has become less susceptible to the neighboring material, and problems, such a bluish oblique evaporation film due to the proton (H.sup.+) intrusion from the neighboring material, have been prevented. Thus the liquid crystal device has come to have a higher durability and a display quality less likely to be degraded.

Abstract: A signal delay circuit is provided which includes first and second circuits arranged parallel to each other, the first circuit having serially connected first and second transistors and the second circuit having a third transistor, and a fourth transistor connected from the common point between the first and second transistors to the second circuit, a signal is applied to one end of the parallelly arranged first and second circuits while the first, second and fourth transistors are turned on with the third transistor being turned off.