Abstract: A liquid crystal cell comprises a liquid crystal sealed between a pair of confronting transparent substrates. A multiplicity of semiconductor driver elements are substantially uniformly distributed over an inner surface of one of the substrates. The semiconductor driver elements have output electrodes connected respectively to matrix element electrodes formed on the inner surface of said one of the substrates. A driver circuit is formed as a semiconductor integrated circuit on an extension of the inner surface of said one of the substrates for selectively driving the semiconductor driver elements.

Abstract: In a multi-gradation display method and apparatus by which a display signal formed by a picture element signal of any one of the levels of N gradations (where N is an integer equal to or greater than 3) is displayed on a display panel in which each picture element produces a two-gradation display, one frame is composed of (N-1) fields, and accordingly each picture element is supplied with a binary signal (N-1) times for each frame, and the binary signal is given one of its values by a number of times corresponding to the level value of the input picture element signal and the other value by the remaining number of times.

Abstract: In a liquid crystal display device, display electrodes are arranged in a matrix form, gate and source buses are provided for each row and column of the display electrodes, and a pixel driving composite transistor is connected between each display electrode and the gate and source buses for driving the display electrode. Source-drain electrode pairs opposite in the direction of arrangement, which are equal in number, are provided for each transistor, and a common semiconductor layer and a common gate electrode are provided for all the source and drain electrodes to form an even number of thin film transistors connected in parallel to one another, thereby constituting the composite transistor for driving a pixel.

Abstract: A transmitting type display device is disclosed, which comprises a transmitting type display panel to provide a display on the front surface, a light source for producing light illuminating the back surface of the transmitting type display and a brightness controller for controlling the intensity of light from the light source. The device comprises an ambient light detector disposed near the transmitting type display panel for detecting the intensity of ambient light incident on the display surface of the transmitting type display panel, and the brightness controller for controlling the light source according to the detection output of the ambient light detector such that the intensity of light from the light source to the transmitting type display panel is increased with an increase of the detected light intensity.

Abstract: The invention discloses a connector for printed circuit board comprising a first contact piece with a spring contactor, a second contact piece with a spring contactor, and a body in which these spring contactors can be arranged at their positions deviated from each other in lengthwise direction and a printed circuit board can be inserted in and out obliquely between contact points of the spring contactors, characterized in that when the printed circuit board inserted obliquely in the body is situated in substantially horizontal state, the printed circuit board is tightly contacted with the contact points of the spring contactors, thereby electrical connection between the printed circuit board and the first and second contact pieces being exactly and appropriately insured over a long period irrespective of frequency in insertion in and out of the printed circuit board.

Abstract: A connector plug has a plurality of contact pins embedded in an insulating body to extend therethrough. The insulating body is mounted in a cylindrical metal cover, on which is provided an insulating cap having a holding portion whose cross section is D-shaped to facilitate the positioning of the connector plug when it is inserted into an associated socket.

Abstract: A liquid crystal cell comprises a liquid crystal sealed between a pair of confronting transparent substrates. A multiplicity of semiconductor driver elements are substantially uniformly distributed over an inner surface of one of the substrates. The semiconductor driver elements have output electrodes connected respectively to matrix element electrodes formed on the inner surface of said one of the substrates. A driver circuit is formed as a semiconductor integrated circuit on an extension of the inner surface of said one of the substrates for selectively driving the semiconductor driver elements.The driver circuit comprises a plurality of thin-film transistors each of which includes a semiconductor layer which has enhanced carrier mobility achieved through annealing.

Abstract: A connector plug includes a plurality of contact pins carried by an insulating body which is installed in a cylindrical metal cover. The cylindrical metal cover has a semi-cylindrical rear portion which is engaged with a semi-cylindrical metal cover piece into a cylindrical form. A separtately molded insulating cap is assembled onto the cylindrical metal cover. Within the insulating cap, a cable clamp member having a thickness greater than that of the cylindrical metal cover is secured to a rear end extension of the cover. A cable connected to the contact pins is clampedly held by the cable clamp member.

Abstract: A transparent conductive film formed on a transparent substrate of a thin film transistor or solar cell contains an element falling in Group III or V of the periodic table. The transparent conductive film is formed in contact with a semiconductor layer.

Abstract: The invention relates to a compact, mechanically operated switch which is especially suitable for use in a telephone set having a loudspeaker receiving function. The switch includes a housing and, disposed therein, a first and a second rotor for opening and closing cooperable contacts and a third rotor for restricting the rotation of the second rotor under a certain condition. All the rotors are disposed in axial alignment with each other. The first and second rotors are urged to rotate in one direction while the third rotor is urged to rotate in the other direction by the action of a force greater than that urging the second rotor to rotate in the one direction. A pushbutton is disposed between the first and second rotors and acts, when depressed, to forcedly rotate them in the other direction so as to establish a loudspeaker receiving circuit. A lock pin cooperates with the pushbutton to lock it in a depressed position.

Abstract: An active matrix liquid crystal display device has a plurality of display electrodes arranged in a matrix array and selectable through control of thin film transistors for application of voltage between selected display electrodes and a common electrode to obtain image display. Each thin film transistor has a semiconductive layer and a gate insulating film both formed to have the same pattern. Each thin film transistor has a gate electrode formed on the gate insulating film with the edges of the gate electrode inwardly spaced apart from the corresponding edges of the gate insulating film. The semiconductor layer and gate insulating film have extensions extending under a corresponding gate bus.

Abstract: This invention discloses a connector for printed board connection comprising a first body having a plurality of first contacts to be connected with one printed wiring and a second body facing to the first contacts of the first body, in which the first body and the second body are turnably and detachably connected with each other, each end of the first contacts and each end of the second contacts are brought into contact with each other within a turning range, so that the printed boards may be easily and speedily connected with each other and that the arrangement of the printed boards may be freely selected while electrical connection therebetween being assured, maintenance being easily carried out and cost being saved thereby.

Abstract: A socket of an electrostatic protection type provided with an earth spring formed of an elastic metal material, the earth spring having a back to be fitted at both lengthwise ends thereof into a groove provided at the plugging surface of a body formed of insulating material and legs bent from both ends of said back in the widthwise direction of said body, the legs being earthed on the basis of contact with the metal plate to be connected to an earth when inserted into the body, the back being exposed outwardly from the plugging surface of the body when the earth spring is fitted into the groove.

Abstract: A jack is composed of a body, a contact piece holder mounted on the body, and a contact piece mounted on the contact piece holder. The body is molded in a single piece by die casting of a conductive material and includes as integral portions of the body a cylindrical portion for receiving a plug, a flange extending from the cylindrical portion, and a terminal and a holding portion provided on the flange. The contact piece holder is carried by the holding portion of the die cast body. The contact piece holder can be mounted on the holding portion with a single operation, and the contact piece can also be mounted on the contact piece holder with a single operation.

Abstract: A connector for flexible substrates which can prevent the flexible substrate exactly from being pulled against ordinary pull-out force and allows the flexible substrate to be pulled out without being broken even when abnormally strong pull-out force beyond the assumed range is applied, and comprising a flexible substrate having an expanded section on its ends, a connector body having a cavity opened upward and the movable contact points of a number of terminals arranged side by side in a row in the cavity, and a housing mounted onto the connector body so as to close opening of the cavity and to hold the end of the flexible substrate inserted through the window of the top wall between a tongue and the movable contact point of the terminals, in which the window of the housing is formed of a wide opening to insert the expanded section of the flexible substrate, and a narrow opening communicated with the wide opening into which non-expanded section following the expanded section of the flexible substrate is fitte

Abstract: A connector plug is disclosed, in which a plurality of contact pins are embedded in an insulating body mounted in a cylindrical metal cover. A shielded cable having wires connected to contact pins is led out from the cylindrical metal cover. A cylindrical shield conductor which is fitted on the shielded cable is fitted on and secured to a rear portion of the cylindrical metal cover. A rear end portion of the cylindrical shield conductor is caulkedly urged against the cable, thus clamping the cable. A shield braid of the cable is electrically connected to the cylindrical shield conductor. The outer periphery of a rear portion of the cylindrical metal cover and cylindrical shield conductor is covered by an insulating cap.

Abstract: The invention discloses a method of manufacturing a jack comprising a step of punching a sheet metal by which a plurality of contact piece elements to be individual contact pieces of a jack are formed into a state of being partially connected to one another and arranged in parallel, a step of bending both ends of each contact piece element downward, a step of cutting off each contact piece element arranged in parallel by a cutter to form individual contact pieces, and a step of forcedly incorporating each contact piece into a jack body positioned right under a punching stroke of the cutter used in the cutting step whereby a complete automatization of the manufacturing is attained, considerably increasing productivity and decreasing an equipment cost as much.

Abstract: A connector plug includes a plurality of contact pins carried by an insulating body which is installed in a cylindrical metal cover. The cylindrical metal cover has a semi-cylindrical rear portion which is engaged with a semi-cylindrical metal cover piece into a cylindrical form. A separately molded insulating cap is assembled onto the cylindrical metal cover. Within the insulating cap, a cable clamp member having a thickness greater than that of the cylindrical metal cover is secured to a rear end extension of the cover. A cable connected to the contact pins is clampedly held by the cable clamp member.