Abstract: A speaker apparatus to be mounted on a vehicle includes a speaker unit and a mounting device. The speaker unit has a frame. The mounting device mounts the frame of the speaker unit on a panel member of a vehicle body. The mounting device includes insulators, which prevent vibration, which is caused by operation of the speaker unit in any direction, from being transmitted to the panel member in any direction.

Abstract: Provided are a detection element Em used for controlling a value of a drive voltage for each light emitting element constituting a display pixel, and a leakage detection circuit 4 which separates the detection element Em from a current source I1 when this detection element Em is in a leakage state. Further provided are a pseudo leakage setup means 5 with which a potential of an anode terminal in the above-mentioned detection element can be set as a pseudo leakage potential which is a potential when the detection element is in the leakage state, and an operation detection means 6 to verify that the leakage detection circuit 4 operates normally when operating the above-mentioned pseudo leakage setup means 5.

Abstract: In the neighborhood of each connecting region of a panel substrate, tape automated bonding (TAB) substrates, and a flexible substrate, marks for a visual inspection are provided at a preset distance apart from the connecting region. According to the present marks, inferior products are eliminated with a high rate of accuracy upon visual inspection after completing a connection of display panel.

Abstract: Light-emitting elements disposed on a light-emitting display panel are driven by constant currents, and the forward direction voltages of the light-emitting elements are obtained by a sampling/holding circuit. Then, the voltage output from a drive voltage source composed of a DC-DC converter is controlled by the forward direction voltages obtained by the sampling/holding circuit. For example, in a case in which the light emission luminance of the light-emitting display panel is changed or in other case, a sampling and holding operation is executed by the sampling/holding circuit in response to a control signal from a sampling timing control circuit at intervals shorter than ordinary intervals. With this arrangement, when light emission luminance of a light-emitting display panel is changed, the gentle changing characteristics of the light emission luminance thereof can be improved.

Abstract: A speaker device includes a magnetic circuit which includes a magnetic gap, a diaphragm which has a recessed part arranged in the magnetic gap and extending in a direction substantially orthogonal with respect to an extending direction of a magnetic flux in the magnetic gap, and a voice coil which is formed into an annular shape and has a first parallel part extending in one direction and a second parallel part extending in a direction in parallel with the first parallel part and opposite to the first parallel part with a constant space. Particularly, the first parallel part and the second parallel part are arranged in a direction in parallel with an extending direction of the recessed part, respectively. The first parallel part is arranged in the recessed part to be positioned in the magnetic gap, and the second parallel part is positioned above the recessed part.

Abstract: A diaphragm of a speaker device, formed into an elongated configuration, has a recessed shape and includes a voice coil arrangement part extending in its longitude direction. The voice coil arrangement part has a gap with a constant width in its lateral direction and includes a voice coil supporting part for supporting a voice coil and an expanded part provided at a position along it.

Abstract: A loudspeaker apparatus is provided with a loudspeaker unit attached to an inner panel. The inner panel of the loudspeaker unit is provided with: an opening to which the loudspeaker unit is attached; a volume unit in which the loudspeaker unit is housed from the opening to form a closed space; and a groove passing through to the volume unit. The loudspeaker unit is housed in the volume unit, and a rear space of the loudspeaker unit in the volume unit is used as an acoustic volume unit of the loudspeaker unit.

Abstract: An inputted picture signal is stored in an image memory 1 into which a picture signal for at least one frame period can be written, while rewriting thememory. At a plurality of timings within one frame period, an average brightness calculation means 2 calculates an average brightness from the picture signal written into the image memory 1, and a brightness control means 3 performs brightness control of the picture signal read from the image memory 1 based on the calculated said average brightness.

Abstract: An oval speaker apparatus includes a diaphragm whose outer peripheral shape in a plan view is oval or elliptical; an oval or elliptical voice coil for driving the diaphragm; an edge which is joined to an outer periphery of the diaphragm; and a frame to which an outer peripheral edge of the edge is fixed. Further, lead wire which is led out from the voice coil is wired so as to traverse the surface of the edge along the minor-axis direction of the diaphragm, and is provided with slack.

Abstract: Provided is a self light emitting type display device which can correct variations in characteristics of self-emitting elements arranged in a display panel, a driver IC which drives lighting of the self-emitting elements, and the like. A self-emitting module 1 is composed of a display panel 2 on which a plurality of self-emitting elements are arranged, a flexible circuit board 3 whose one end portion is connected with the display panel, a memory 10 which is loaded on the circuit board 3 and in which data for adjusting light emission intensities of the self-emitting elements is stored, and a drive unit 5 which is loaded also on the circuit board and which is equipped with a function of generating the drive current which is for adjusting the light emission intensities of the respective light emitting elements based on the data stored in the memory.

Abstract: It is an object of the invention to provide an improved speaker grille and an improved speaker device capable of preventing a deterioration of the quality of a sound propagated in an inclined direction, using only a simple structure. The speaker device has a diaphragm and a grille provided in front of the diaphragm. The grille is formed in a position in front of the diaphragm, and has an open area in which an entire diameter of the diaphragm is opened in the right ahead direction of the diaphragm, also has shield areas formed on both sides of the open area for shielding part of the diaphragm viewed in an inclined direction, thereby making it possible to prevent a sound quality deterioration in the inclined direction using a simple structure. Moreover, since the grille is formed with the open area in the right ahead direction, there is no sound quality deterioration in the right ahead direction.

Abstract: A double-sided display device includes a pair of substrates, on which self-emitting elements are formed respectively, being bonded to each other. A lead wiring section of the self-emitting element area formed on one of the substrates and a lead wiring section of the self-emitting element area formed on the other substrate are formed on the same side of the substrates. Each of the lead wiring sections is formed in a part of the side of each of the substrates. In addition, cutout portions are formed in parts of the sides of the substrates where the lead wiring sections are not formed. Thus, in the double-sided display device, the lead wiring sections formed on ends of substrates can be easily connected with a driving circuit component, a wiring substrate or the like, while the space for the double-sided display device can be reduced.

Abstract: A correction voltage retaining capacitor C2, a correction voltage write transistor Tr4, and a switching transistor Tr5 are added to a pixel structure of an SES drive method provided with an organic EL element E1 as a light emitting element, a light emission drive transistor Tr1, a data write transistor Tr2, and an erase transistor Tr3 which can erase electrical charges in a light emission maintaining capacitor C1. With the ON operation of the erase transistor Tr3, the correction voltage write transistor Tr4 is turned on, and the switching transistor Tr5 is turned off. In this state, the threshold voltage (Vth) of the light emission drive transistor Tr1 is written in the correction voltage retaining capacitor C2. When pixels are lit, by a gate-to-source voltage obtained by adding the threshold voltage written in the correction voltage retaining capacitor C2 to a data voltage written in the light emission maintaining capacitor C1, drain current of the light emission drive transistor Tr1 flows.

Abstract: A drive apparatus is provided which can calculate a suitable APL value when driving a color display panel using PLE control. Further, a drive apparatus is provided which can inhibit output capacity of a power supply circuit by controlling display brightness according to a lighting rate of a pixel. An APL calculation means 20 is provided with a weighting means 22A for performing weighting according to a light emitting current rate of each color at the time of displaying a gray scale with respect to a picture signal of each of the colors R, G, and B. Being averaged by an averaging means 23, each signal weighted by this weighting means 22A acquires an APL value. The peak brightness control means 29 is controlled using this APL value so that PLE operation of controlling a peak brightness of the picture signal is realized.

Abstract: A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface positioned on a side opposite to a sound output direction and a side surface curved to a direction of the sound output direction from a peripheral end of the rear surface communicate with each other, and the terminal covers the opening on the rear surface of the frame. Therefore, the opening is provided on the side surface of the frame, and ventilation performance of the speaker device is ensured. In addition, by such amount that no opening is provided on the rear surface of the frame, a setting space of the terminal can be enlarged on the rear surface of the frame.

Abstract: The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.

Abstract: One frame (period) is divided into a plurality of sub-frames including a lighting period and a non-lighting period for a pixel, and gradation control is carried out by selecting the above-mentioned sub-frames and by summing the lighting periods of the pixel within one frame period. In addition, proportions of the above-mentioned lighting period and the non-lighting period for every sub-frame are changed so as to perform selection operation of a gamma value of a gradation characteristic. A sum of the lighting periods within one frame period of the pixel at the time of setting the maximum gradation by way of the above-mentioned gradation control is set to be the same at the time of selecting any gamma value selected by the above-mentioned gamma value selection operation. Thus, it is possible to control luminosity changes generated when switching gamma values of gradation characteristics, especially at the time of the maximum gradation, and reduce degrees of a user's sense of incongruity.

Abstract: A flexible circuit board is provided to prevent unsuccessful interconnection between the wirings of the flexible circuit board and the output terminals of a semiconductor chip, the flexible circuit board having a plurality of sections of wirings of different sizes, each section including a pattern of wirings of the same size. The flexible circuit board has predetermined patterns of wirings on an insulating material base, and the wirings are electrically connected to the output terminals of a semiconductor chip. A pattern of the wirings of the same size forms a first wiring section, while another pattern of the wirings of the same size form a second wiring section. The flexible circuit board is provided with a pattern transition region between the neighboring wiring sections with wirings of different sizes to avoid unsuccessful interconnection which would be otherwise caused by the difference in size between the wirings.

Abstract: In a drive device for an active type light emitting display panel which can apply a reverse bias voltage to an EL element, in order to be able to compensate deterioration in light-emitting efficiency of the EL element accompanied by applying of the reverse bias voltage and the like, one pixel 10 is composed of a controlling TFT (Tr1), the driving TFT (Tr2), a capacitor C1, and the EL element E1. Switching switches SW1, SW2 mutually enables a supplying state of a forward current to the EL element E1 and an applying state of the reverse bias voltage to be selected. In one control form according to the present invention, when the applying state of the reverse bias voltage shifts to the supplying state of the forward current, by switching one switch first, the anode and cathode of the EL element E1 are made to the same electrical potential to allow electrical charges to be discharged.

Abstract: In a self light emitting display device of the present invention, a first electrode 3 for example formed of a thin film of ITO is formed in a striped pattern on a glass substrate 2, and a film of a light emission functional layer 6 is formed thereon. A metallic second electrode 7 is formed on the light emission functional layer 6, and a light transmitting sealing member 8 for example formed of a glass material is superimposed on the second electrode 7. Apertures 7a for allowing image light from the light emission functional layer 6 to pass through are formed on a part of the second electrode 7, a first light emitting area L1 is formed in the glass substrate 2 side, and a second light emitting area L2 is formed in the sealing member 8 side. As a result, display images can be visually recognized on both front and rear surfaces.