Abstract: A display device includes a pixel array having a plurality of pixels, a plurality of first signal lines and a plurality of second signal lines. A first driving circuit outputs scanning signals to the plurality of first signal lines, and a second driving circuit outputs display signals to the plurality of second signal lines. Each pixel of the plurality of pixels is operated in a normally black-displaying mode, the first driving circuit repeats a first step of sequentially selecting N lines of the plurality of first signal lines and a second step of selecting Z lines of the plurality of first signal lines that are separate from the N lines, where N and Z are natural numbers, and the second driving circuit repeats outputting N times the display signals and outputting one time a blanking signal which masks an image displayed on corresponding pixels.

Abstract: Disclosed is an optical disc apparatus that sets a plurality of virtual zones, which correspond to a plurality of zones that are arranged in the radial direction of an optical disc, for a plurality of recording layers of the optical disc. When a servo signal distortion is detected in a virtual zone to change the rotation speed of the optical disc to a low speed in the virtual zone during an information recording or reproduction operation relative to a first recording layer, the optical disc apparatus stores the change information. When a recording or reproducing operation is to be performed in a virtual zone of a second recording layer, which is in the same disc radial position as the virtual zone of the first layer, the optical disc apparatus changes the rotation speed of the optical disc for the virtual zone to a low speed in accordance with the change information.

Abstract: An optical disc apparatus, as a learning operation before a recording or reproducing operation, rotates an optical disc at a first speed to read PID information, discriminates between lands and grooves of the optical disc, detects switching positions between lands and grooves, sets a rotation angle position of tracking pull-in of an objective lens of a time length that allows the PID information to be stably read, with respect to the switching position, and stores the set position information of tracking pull-in as learning result information. During recording or reproducing, the optical disc apparatus rotates the optical disk at a second speed higher than the first speed, pulls in the objective lens for tracking based on the stored position information of tracking pull-in, reads PID information, and performs the recording or reproducing operation while discriminating between lands and grooves and detecting switching positions between lands and grooves.

Abstract: A display device of the present invention prevents the deterioration of display quality even when input video data are changed. In a matrix type display device, lines of video data are inputted to the data driver circuit one after another for every horizontal scanning period of the video data. The data driver circuit alternately repeats (i) a first step for generating a display signal corresponding to each one of the lines of the video data one after another for every fixed period and outputting the display signal to the pixel array N-times (N being a natural number equal to or greater than 2) and (ii) a second step for generating a display signal which makes the luminance of the pixels lower than the luminance of the pixel in the first step for the fixed period and outputting the display signal to the pixel array M-times (M being a natural number smaller than N).

Abstract: In a display device the possibility that the ratio between a display period for display signals and a display period for blanking signals differs from a preset ratio is eliminated, even when the video data is changed. A display device sequentially supplies blanking data from a data driver circuit which sequentially supplies display signals after a lapse of a given time from starting the supply of the display signals. In the display device, a ratio of display is set based on the blanking data per one frame period. Further, the number of pulses of a horizontal synchronizing signal is measured in one frame period contained in the video data, and a point of time is determined for starting display based on the blanking data in response to pulses of the horizontal synchronizing signal corresponding to the ratio based on a measured value of the number of pulses.

Abstract: A data driver of a display device alternately repeats a first step of sequentially generating a display signal corresponding to each one of the lines of image data for a fixed period and outputting the display signal to a pixel array N-times and a second step of generating a display signal which makes the luminance of pixels lower than the luminance of the pixel in the first step for the fixed period and of outputting the display signal to the pixel array M-times. A scanning driver circuit alternately repeats selecting a plurality of pixel rows for every Y rows sequentially from one end to another end of the pixel array along the second direction in the first step and selecting the plurality of pixel rows other than the pixel rows (Y×N) sequentially from one end to another end of the pixel array for every Z rows along the second direction.

Abstract: In the method for driving a liquid crystal display device which has a plurality of picture elements or “pixels” and a drive circuit for outputting to each pixel a gradation voltage selected from among M (M?2) gradation voltages, the polarity of a gradation voltage that is outputted from the drive circuit to each pixel is inverted for every N (N?2)-line group, while letting the voltage value of an m (1?m?M)-th gradation voltage to be outputted from the drive circuit to each pixel be different between the time when outputting it to the pixels on the first line immediately after the polarity inversion and the time when outputting it to the pixel on a line which is subsequent to the first line, immediately after the polarity inversion, and whose polarity is not inverted.

Abstract: In an image pickup apparatus and image pickup method, an image pickup area where a plurality of pixels each having at least first and second photoelectric conversion sections are arranged in a depth direction is used to pick up an object image, signals from the first and second photoelectric conversion sections are obtained in case that the image pickup area is light-shielded, and differential processing between a signal obtained in the first photoelectric conversion section in case that the image pickup area is light-shielded and a signal obtained in the first photoelectric conversion section by picking up an object image in the image pickup area, and differential processing between a signal obtained in the second photoelectric conversion section in case that the image pickup area is light-shielded and a signal obtained in the second photoelectric conversion section by picking up an object image in the image pickup area are performed, so that correction of image pickup signals is performed.

Abstract: A display device includes a plurality of gate lines, at least one data line, and a plurality of pixels connected to the plurality of gate lines and the at least one data line. The display device is configured to perform a first step of sequentially selecting N lines of the plurality of gate lines, and sequentially outputting N times display signals to the data line, and to perform a second step of selecting Z lines of the plurality of gate lines at one time, and outputting one time a blanking signal, where N and Z are natural numbers at least equal to 2. The Z lines are separate from the N lines, and the first step and the second step are repeatedly performed.

Abstract: A liquid crystal display device having a liquid crystal display panel to which a display datum is inputted and which has a backlight arranged at a back surface of the liquid crystal display panel. The liquid crystal display panel includes a first arrangement for identifying gray scales in respective pixel datum included in the display datum, a second arrangement for detecting each existence of predetermined gray scale levels in the gray scales identified by the first arrangement, a third arrangement for totaling up a number of the gray scale levels detected by the second arrangement, and a fourth arrangement for outputting to the backlight a control signal lying in one of a plurality of brightness control ranges of the backlight with respect to the number of the gray scale levels totaled up by the third arrangement. The fourth arrangement divides a brightness range of the backlight to be regulated thereby into the plurality of brightness control ranges.

Abstract: A hold-type display device for eliminating blurring without damaging the display brightness of moving images. The display device includes a pixel array including a plurality of pixels, a plurality of first signal lines, a plurality of second signal lines, a first driving circuit outputting scanning signals to the plurality of first signal lines, and a second driving circuit outputting display signals to the plurality of second signal lines. The first driving circuit repeats a step for sequentially selecting the first signal lines every Y lines for every N times and a step for selecting the first signal lines every Z lines for every M times which follows the N times. The second driving circuit repeats outputting N times the display signals and outputting M times a blanking signal which masks an image displayed on corresponding pixels.

Abstract: A hold-type display device for eliminating blurring without damaging the display brightness of moving images. The display device includes a pixel array including a plurality of pixels, a plurality of first signal lines, a plurality of second signal lines, a first driving circuit outputting scanning signals to the plurality of first signal lines, and a second driving circuit outputting display signals to the plurality of second signal lines. The first driving circuit repeats a step for sequentially selecting the first signal lines every Y lines for every N times and a step for selecting the first signal lines every Z lines for every M times which follows the N times. The second driving circuit repeats outputting N times the display signals and outputting M times a blanking signal which masks an image displayed on corresponding pixels.

Abstract: In a liquid crystal display device having a plurality of pixels arranged in the form of a matrix, with groups of the pixels being arranged in lines along respective gate signal lines, the present invention provides for accumulating both signal levels of pixel data for odd-numbered lines of the pixels and for even-numbered lines of the pixels separately in every frame period, obtaining a subtracted value obtained by subtracting one of the accumulated values of the signal levels from the other, and transmitting an alternation signal which changes the voltage polarity applied to a liquid crystal layer by modifying the phase thereof on the basis of the subtracted value, so that flicker appearing on a display screen is efficiently suppressed.

Abstract: A safe brushing is realized without sticking the gum if the bristle tips are once inserted in a pocket of a tooth by using a system having a brush of which the bristle tips automatically vibrate in a direction at right angles with the direction of length of the bristles. A brush lever 5 having a brush 4 is swingingly supported in the nozzle 1, a flow passage 3 leading to a blow-out port 1a at an end of a nozzle 1 is partly bent, and a resilient member 7 is provided at the bent portion to urge the brush lever 5 in a direction opposite to the direction of flow of water, so that the brush lever 5 oscillates reciprocally due to the resilient force produced by the resilient member 7 and the pressure of water flow, causing the bristle tips of the brush 4 to oscillate in a direction at right angles with the direction of length of the bristles outside the nozzle 1.

Abstract: In a display device having a pixel array in which a plurality of pixels are arranged two-dimensionally along a first direction and a second direction, each of the pixels includes a pair of electrodes applying a voltage to liquid crystals, respective groups of the pixels arranged along the first direction form a plurality of pixel-rows juxtaposed along the second direction, and respective groups of the pixels arranged along the second direction form a plurality of pixel-columns juxtaposed along the first direction, the present invention repeats a first step for selecting every Y rows of the pixel-rows sequentially along the second direction N-times and applying an image signal to one of the pair of electrodes provided for each one of the pixels belonging to the each Y rows of the pixel-rows as selected, and a second step for selecting every Z rows of the pixel-rows sequentially along the second direction M-times and applying a blanking signal to the one of the pair of electrodes provided for each one of the pi

Abstract: An object of the present invention is to eliminate the influences of the leakage etc. of charges from a photodiode to a storage part during the electronic shutter operation. To achieve this object, the present invention includes: a photodiode which generates and accumulates a signal charge according to the amount of light from an object; an amplification part which amplifies a signal charge outputted from the photodiode and outputs the amplified signal to the outside; a storage part which temporarily stores the signal charge; and a transfer device which transfers the signal outputted from the photo-electric conversion device to the storage part via the amplification part.

Abstract: A liquid crystal display device can have enhanced display quality of a display screen by preventing the generation of lateral stripes on the display screen when the polarity of a gray scale voltage is inverted for every N (N?2) lines without providing a new display control signal. In the liquid crystal display device, a gray scale voltage is applied to a plurality of pixels, and the polarity of the gray scale voltage is inverted for every N (N?2) video lines. The polarity inversion line position at which the polarity of the gray scale voltage is changed from the positive polarity to the negative polarity or vice versa different among respective frames. Thus, the polarity inversion line position is discontinuous among continuous frames. Further, the positive polarity gray scale voltage and the negative polarity gray scale voltage are supplied to the respective pixels every N/2 times.

Abstract: Disclosed is an image sensing apparatus comprising a plurality of two-dimensionally arrayed pixels each having a photodiode and a floating depletion area for temporarily storing a charge signal that has accumulated in the photodiode; an output unit that outputs the charge signal, which has been transferred to the floating depletion area, successively pixel by pixel; a scanning unit having a reset mode for resetting the photodiodes and floating depletion areas successively by prescribed unit, a first transfer mode for transferring the charge signal, which has accumulated in the photodiodes, to the floating depletion areas successively by the prescribed unit at prescribed time intervals upon lapse of a prescribed period of time from start of reset, and a second transfer mode for transferring the charge signal, which has been transferred to the floating depletion areas, to the output unit.

Abstract: An optical disk apparatus and an optical disk recording and reproducing method are provided in which an actuator can be controlled in stable fashion at the time of high-speed recording operation. Before performing the high-speed recording operation under servo control of average type, the learning of a servo signal of average type by application of a disturbance signal is carried out for both the servo control of continuous servo type for reproduction and the servo control of sample-and-hold type for low-speed recording operation. Based on the result of the learning, the gain is set for a servo loop of average servo type for high-speed recording operation.

Abstract: Unit design according to the present invention makes it possible for accumulated results of past design examples to be reflected in forming new designs, thereby preventing repetitive of designs and thereby reducing the time required for development. In the unit designing apparatus (1), the CPU (3) includes a basic structure designing section (21) for designing a basic structure in accordance with a given design target, and a function block searching section (23) for searching a design example of a function block for application to the engine concerned. The function block layout section (25) lays out a retrieved outer shape of a function block in a basic structural view to design a raw material shape. The CPU (3) further includes a production machining information searching section (29) for searching production machining information for application to each function block.