Abstract: A clock signal synchronized with a data write signal for each scan line supplied from a light emission control circuit 4 to a scan driver 6 is supplied to an oscillator 12 generating a reference switching signal of a DC-DC converter 8 by a PWM method via a frequency divider 14. Thus, even when a ripple component by a switching operation of the converter has been superimposed on a drive voltage Va, constantly the same gate-to-source voltage Vgs is supplied to a light emission drive transistor Tr2 for each scan line, whereby a problem that a state in which light emission intensities differ for each scan line is brought about can be resolved. Further, the duty ratio of a switching signal from a PWM circuit 11 is detected by a detection circuit 13 to grasp the load condition of the converter, and when the load is light, the division ratio of the frequency divider 14 is increased to execute the switching operation at a low frequency.

Abstract: A speaker device includes a magnetic circuit system and a vibration system including a frame. The frame has a magnetic circuit housing unit housing the magnetic circuit, an outer peripheral portion arranged on an outer side thereof and having an annular shape, and plural arm parts connecting the magnetic circuit housing unit and the outer peripheral portion. A damper mounting part on which an outer peripheral portion of a damper is mounted is formed at the outer peripheral portion of the magnetic circuit housing unit. A rib upwardly standing is provided at the outer peripheral portion of an upper surface of the damper mounting part. The height of the vicinity of the connecting part between the rib and the arm part is set larger than the height of the rib corresponding to an area other than the vicinity, and thus the height of the rib is partly different.

Abstract: The present invention is to provide a dot matrix type display device by self light emitting elements in which a display burning phenomenon can be prevented from occurring. With the dot matrix type display device according to the present invention, in the display device in which a plurality of self light emitting elements are arranged in a dot matrix pattern, one or more icons, pictures, letters/characters, and the like are displayed at least on a part of a display area of the display device. The display origin of said one or more icons, pictures, letters/characters, and the like are moved at least one dot or more and displayed by movement display means one after another.

Abstract: A speaker device includes a terminal metal which is electrically connectible to a tinsel cord and a wiring, and a supporting body which includes a terminal metal mounting part on which the terminal metal is mounted. The terminal metal is mounted on the terminal metal mounting part. Thereby, the tinsel cord and the wiring can be electrically connected to each other via the terminal metal, without providing a terminal board. Thus, the number of parts can be reduced by the number of omitted terminal board, and the cost of the speaker device can be reduced.

Abstract: A printed wiring board is used as a printed circuit board of various kinds of electronic devices, and has a part on which a coil is mounted. A metallic pattern area such as a copper foil is formed in a coil vicinity area including the part on which said at least coil is mounted, on the printed wiring board. The metallic pattern area is divided into plural areas in a direction of a coil current flowing in the coil. Thereby, a loop current is not generated in the same direction as that of the coil current in the metallic pattern area.

Abstract: A frame with a pot type yoke incorporated therein is held on a seating base, and an adhesive supplying means is disposed at a position located in close proximity to this seating base. A supply head of this adhesive supplying means has its supply port opposing an end face of an annular portion. The supply of the adhesive is effected while the seating base is rotated, and the adhesive is supplied starting with one groove, and is supplied continuously up to the other groove.

Abstract: The present invention is to provide a playback apparatus for assuredly guiding a disk shape recording medium to a holder. A CD changer 1 has a main body 3, a holder 19, and a guiding mechanism 91. The main body 3 has a slot 10 for inserting or removing a CD 2. The holder 19 has a holder body 80 and a locking member 82. The holder body 80 has a C-shaped retainer 84 and a flange 85. The locking member 82 is disposed at an end 80b of the holder body 80 and locked to the CD 2. The guiding mechanism 91 has an arm main body 92 and a guiding part 94. The arm main body 92 is disposed rotatably. The guiding part 94 projects inwardly from an inner edge 85a of the flange 85 when the CD 2 is inserted. The guiding part 94 has a pair of guiding projections 96. The guiding projections 96 position an outer edge of the CD and the locking member therebetween. The guiding projections 96, or the guiding mechanism 91, guide the CD to the holder 19.

Abstract: A frame for a speaker device has an annular outer peripheral portion. The outer peripheral portion includes plural wall portions concentrically formed. An end surface of the wall portion on an inner circumferential side of the outer peripheral portion is formed at a position recessed as compared with an end surface of the wall portion on an outer circumferential side in a direction of a central axis of the outer peripheral portion.

Abstract: Accumulating spaces for conductive particles are formed in gaps of wiring patterns for conductive wirings which are disposed on a surface of a supporting body. When interconnecting a pair of interconnection objects having the respective wiring patterns via an anisotropic conductive film thereon due to a thermocompression bonding, the conductive particles to be flown-out into the gaps by the thermocompression bonding are allowed to escape into the accumulating spaces, so that an over-density of the conductive particles can be prevented to avoid a shortage in the wiring patterns.

Abstract: A speaker according to the present invention is equipped with a diaphragm having a central portion of a dome shape and an edge portion formed on an outer periphery thereof. Further, the speaker has also a frame attached with an outermost fringe of the edge portion and a damper member provided inside the central portion to support the central portion. The damper member supports an inner side surface of a voice coil bobbin also, so that a voice coil can be adequately positioned within a magnetic gap.

Abstract: For providing an information recording medium playback apparatus, which can miniaturize a transporting unit to insert and eject an information recording medium for miniaturizing as a whole, the CD changer 1 includes an apparatus main body and a disk-transporting unit 4. The disk-transporting unit 4 includes a transporting roller 13 and a guide member 82. The transporting roller 13 and the guide member 82 are energized in a direction to be close to each other. The apparatus main body includes pushing members 80, 81 to separate the transporting roller 13 from the guide member 82 when the disk-transporting unit 4 is positioned in an insert/eject position for inserting and ejecting the CD.

Abstract: A magnetic circuit for a speaker device includes: a yoke which has magnetism and has a center pole formed into a column shape; and plural flat plate-shaped magnets which are uniformly arranged around the center pole and form a magnetic gap with the center pole. Each of the magnets is magnetized in a direction in parallel with a thickness direction and in a direction of the center pole. The magnetic circuit for the speaker device is a radial-type magnetic circuit. Since each of the flat plate-shaped magnets is formed not into a circular arc shape but into a flat plate shape, it becomes easy to form the magnets, and the number of procedures of forming of the magnets can be reduced. Additionally, since each of the flat plate-shaped magnets is magnetized in the thickness direction, a special magnetization machine becomes unnecessary. Thus, the number of procedures of magnetizing of the flat plate-shaped magnets can be reduced. As a result, the manufacturing cost of the magnetic circuit can be reduced.

Abstract: A voice coil and a magnetic driving circuit oscillate a diaphragm and a center cap. A magnetic lighting circuit for providing a magnetic field to an induction coil is mounted separately from a magnetic driving circuit. The induction coil generates an electromotive force for lighting light-emitting devices. Further, the light-emitting devices, the induction coil, and the magnetic lighting circuit are mounted integrally on the center cap.

Abstract: Reverse bias voltage VM is applied to any one of self light emitting elements arranged on a light emitting panel 1 under detection mode. Current corresponding to weak current flowing to the element is supplied to a transistor Q3 by the operation of a current mirror circuit comprised of transistors Q1, Q2. The current mirror circuit is formed with the transistor Q3 as a control side current source transistor and transistors Q4 to Q7 as a controlled side current source transistor. The sizes of the controlled side current source transistors Q4 to Q7 are set to, for example, 1:2:4:8 with respect to the control side current source transistor Q3 so as to construct current amplifying means. Current value amplified by a current comparison type comparator 7 is compared with current value from a reference current source 8 and its output is latched by a latch circuit 9 and stored in a data register 10.

Abstract: A speaker device includes a speaker unit and a speaker device bracket mounted thereon. The speaker device bracket has a condenser fixing part for fixing a network electronic part such as a condenser, and a connector terminal fixing part for fixing a speaker device connector terminal which is electrically connected to an amplifier and a voice coil. Thus, both of the condenser and the connector terminal can be fixed to the speaker unit by using a speaker device component part being one dedicated part, and the number of parts of the speaker device and the number of procedures can be reduced. Additionally, by providing the fixing parts at appropriate positions of the speaker device bracket, the mounting freedom degree of the network electronic part can be improved.

Abstract: In a rolling process, the level of rolling performed by a rolling mill for one operation is set to 1 ?m to 20 ?m. A magnesium substrate is rolled by rollers while being heated by a thermostatic chamber. As a result, there is manufactured a high-quality magnesium sheet which is less susceptible to influence of oxidation, which realizes a high internal loss, prevention of a drop in sensitivity, and low distortion, and which has a thickness of 30 ?m to 100 ?m. Further, as a result of the magnesium sheet being formed into a semi-dome shape or a dome shape, the sheet can be inexpensively manufactured as a speaker for high-tone playback. In particular, in the case of a magnesium diaphragm into which a dome section and an edge section are integrally formed, high-quality sound can be played back in a high frequency range without involvement of a drop in sensitivity.

Abstract: A ribbon-shaped speaker device includes a magnetic circuit which has two magnetic gaps; two diaphragms which have conductive properties and which are arranged substantially in parallel with and opposite to each other in each of the magnetic gaps; and a driving part which supplies a driving current to each of the diaphragms. A direction of a magnetic flux in each of the magnetic gaps and a direction of the driving current supplied to each of the diaphragms are set such that each of the diaphragms moves in a same direction. Each of the diaphragms inclines in a direction adjacent to each other.

Abstract: A damper includes an outer peripheral frame (first annular part), an inner peripheral frame (second annular part) arranged on an inner side of the outer peripheral frame, and first and second arms. The first and second arms have the elasticity, and are arranged between the outer peripheral frame and the inner peripheral frame to integrate the outer peripheral frame and the inner peripheral frame. The first and second arms have plural arm parts. The plural arm parts forming the first arm frame and the plural arm parts forming the second arm are arranged with distances in a generating line direction of the outer peripheral frame and the inner peripheral frame. The first arm is positioned on a first plane surface different from a second plane surface on which the second arm is positioned.

Abstract: An organic EL element includes a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors and are connected in series; and a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units. The plurality of light-emitting units includes light-emitting units which exhibit one color and are formed in multiple stages. A desired mixed color is obtained from the light-emitting surface by combining the different luminous colors.

Abstract: A film formation source of a vacuum film formation apparatus for forming thin film on the film formation surface of a substrate includes a material accommodating unit containing a film formation material; a heater for heating the film formation material contained within the material accommodating unit; and a film formation flow control unit provided at an emission outlet of the material accommodating unit for controlling the direction of the film formation flow. The film formation flow control unit provides a strong directivity to the film formation flow with respect to the moving direction of the film formation surface relative to the film formation source.