摘要:
This invention relates to a focus detecting apparatus using an area sensor as an AF sensor, and particularly provides a focus detecting apparatus in which when any area in a scene is designated and the focus state in that area is to be detected, the output from an area on the sensor corresponding to the designated area of the scene is read and processed on the basis of the information of an area on the area sensor corresponding to the designated area of the scene pre-memorized in a memory circuit.
摘要:
A semiconductor device with holes of porous texture in a part of the surface of a semiconductor substrate. The holes are filled with a conductive material across an insulating layer.
摘要:
An image pickup device comprises illuminating means for illuminating an object and an image pickup element for picking up an image of the object. An improvement is in that a drive circuit for driving the illuminating means and a control circuit for controlling the driving of the image pickup device are integrated with the image pickup device into one chip, in order to operate the image pickup device only a single power source and to minimize the device structure.
摘要:
A liquid crystal display driven in multiplex with a plurality of pixels arranged in a matrix comprises a main display, and at least one sub-display located at least partly around the periphery of the main display.
摘要:
A semiconductor memory device includes: an insulated gate transistor having a plurality of main electrode regions provided along a major surface of a substrate and a channel region provided between the plurality of main electrode regions, and a gate electrode provided on the channel region with a gate insulator therebetween, the gate electrode having at least two opposing portions; and an electrically breakable memory element provided on one of the main electrode regions.
摘要:
A liquid crystal image display unit created on a substrate non-transparent to the light in the visible radiation area, characterized in that a portion beneath a liquid crystal pixel part on said substrate is removed, so that the light is made transmissive through said liquid crystal pixel part.
摘要:
A semiconductor substrate comprises an insulating layer and a compound semiconductor monocrystal thin film formed on said insulating layer, the thermal expansion coefficient of said insulating layer being in the range of 60%-140% of that of said monocrystal thin film.
摘要:
A semiconductor device has an NMOS transistor and a PMOS transistor formed on at least one monocrystal Si region formed in a thin-film Si layer formed on an insulation layer. The thickness T.sub.BOX of the insulation layer on which the NMOS and PMOS transistors are formed, the voltage V.sub.SS of a low-voltage power supply and the voltage V.sub.DD of a high-voltage power supply for the NMOS and PMOS transistors satisfy a relationship expressed by the following equation:T.sub.BOX >(V.sub.DD -V.sub.SS -K.sub.2)/K.sub.1where K.sub.1 .tbd..epsilon..sub.BOX (Q.sub.BN +Q.sub.BP), K.sub.2 .tbd.2.PHI..sub.FN +2.PHI..sub.FP -1.03, .epsilon..sub.BOX.sup.-1 is the dielectric constant of the base insulation layer, Q.sub.BN and Q.sub.BP are bulk charges when the widths of depletion layers of the NMOS and PMOS transistors are maximized, and .PHI..sub.FN and .PHI..sub.FP are pseudo Fermi potentials of the NMOS and PMOS transistors.
摘要:
Variations in the individual liquid crystal cells and cross-talk between adjacent pixels are reduced, stable operation is maintained and the aperture and the S/N ratio are increased by providing a transistor and an interconnection layer therefor on one surface of an insulating layer while providing an electrode for applying a voltage to a liquid crystal on the other surface thereof. One major electrode portion of the transistor and the liquid crystal voltage applying electrode are connected to each other using an electrode via an opening. Also, the electrode for connecting the major electrode portion 3 to the liquid crystal voltage applying electrode is provided on the other surface of the insulating layer such that it shield the transistor from light.
摘要:
A magnetic record reproducing method includes the steps of bringing a magnetic film, capable of producing a magneto static wave, into intimate contact with or proximity to the recording surface of a magnetic recording medium, causing the magnetic film to produce the magnetostatic wave, detecting any variation in wave number in the magnetostatic wave attributable to the magnetized signal of the recording surface, and converting the variation in wave number in the magnetostatic wave into an electrical signal.