Abstract: A video overlay switching apparatus and method utilizes a common video scaler that receives input video data. A programmable switching mechanism, such as a register-controlled multiplexer, receives video information from the video scaler, either scaled video or unscaled video, and selectively routes the video data to any one of a plurality of video overlay generators to facilitate selective display of overlay data on a specified display device. The programmable switching mechanism also facilitates programming of frame buffer space for each display engine, based on which video overlay generator has been selected to receive input video.

Abstract: The present invention relates to a matrix control device including a set of control circuits arranged in lines and columns and controlling an elementary point, the state of each elementary point being a function of first and second control signals) applied to the control circuit respectively by the lines and columns. The control circuit consists of a first transistor connecting the elementary point to the corresponding line receiving the first signal and a second transistor a first electrode of which is connected to the gate of the first transistor, the gate of which is linked to the corresponding column receiving the second signal and the second electrode of which is connected to a reference potential.

Abstract: The present invention is a liquid crystal panel substrate that comprises: pixel units each having a pixel electrode, to be used as a reflective electrode and arranged in a matrix pattern on a substrate, and a switching element controlling a voltage applied to the pixel electrode; wherein between the pixel electrode and a conductive layer forming a terminal electrode of the switching element, a contact hole is provided for connecting the pixel electrode and the terminal electrode. A light-shielding layer, having an opening surrounding the portion in which the contact hole is formed, and having no opening in regions between a plurality of adjacent pixel electrodes, is formed between the pixel electrode and the conductive layer. Harmful effects due to light leaking through a space between the pixel electrodes can thereby be prevented.

Abstract: Display observation angle of which is multidirectionally adjustable, including a panel control system, a panel, a transmission mechanism and a housing receiving the above components. The panel control system includes a program processing unit for turning on/off the transmission mechanism, a command input unit for giving control signal to the program processing unit and a mechanical position detection unit for always sensing the operation state of the transmission mechanism. The transmission mechanism includes a motor drive circuit and a mechanical unit composed of several gear sets mounted on the housing. The program processing unit activates the gear sets of the mechanical unit, whereby the panel is driven by the transmission mechanism. After the panel is extended out of the housing, the panel can be swung forward downward, backward upward, leftward or rightward.

Abstract: A system for detecting a position of a stylus movable on an interactive board includes a position information transmitter and information detection sections. The stylus has the transmitter for transmitting to the detection sections electromagnetic wave signals or light signals, and ultrasonic wave signals. The position is detected based on measurement of direct distances for signal transmission between the stylus and the detection sections. The detected position information is output to a personal computer, image projector, printer, etc. Each detection section has an opening sized so that the ultrasonic waves are advantageously transmitted through the opening and substantially radially from its center to its piezoelectric element.

Abstract: This invention involves a wearable computer having computer components movably located in a collar that the user wears around his or her neck. The computer components can be a display or monitor, or a microphone or any other computer component.

Abstract: An active-matrix-type liquid crystal display device supplies signal potentials to signal lines of a liquid crystal display panel according to a time-division drive method using time-division switches. The low-level potential of select pulses to be supplied from a select pulse generating circuit to CMOS analog switches of the time-division switches is set to be lower than the low-level potential of a signal potential output from a horizontal drive circuit. With this arrangement, even if the signal potential of a non-selected signal line is decreased due to the crosstalk of a signal potential from a selected signal line to the non-selected signal line, the generation of insufficient contrast and non-uniformity of the luminance in the horizontal direction can be prevented. As a consequence, a high image quality is maintained.

Abstract: A drive circuit, for example a gate line drive circuit for a TFT liquid-crystal display, having a circuit size smaller than in the past. A TFT drive circuit has the shifting direction of drive data sequentially shifted through shift registers (SR116-R60) and is further inverted by a control signal (SEL_SFT), and the data are shifted in the opposite direction, from the first shift register (SR61) to the second shift register (SR116). At this time, the upper group of switching circuits (SW1-SW56) or the lower group of switching circuits (SW116-SW61) is enabled and the other group is disabled by control signals (SEL_UP, SEL_LO). Once the drive data are shifted to the bits of the shift registers, a voltage selection signal generated by a decoder (DEn) is inputted to an output circuit via an effective switching circuit, and a drive signal for a TFT gate is outputted. The number of circuits is reduced because the shift registers (SR61-SR116) and decoders (DE61-DE116) are shared by two outputs.

Abstract: A display module of the present invention includes a liquid crystal panel driven by a driving signal in a column direction and a driving signal in a row direction; a source driver for supplying the driving signal in the column direction; a gate driver for supplying the driving signal in the row direction; a TCP type film provided with the source driver; a TCP type film provided with the gate driver; and a controller circuit for controlling the gate driver and the source driver, which is installed on the TCP type film together with the source driver or the gate driver. With this structure, the number of parts can be reduced, achieving miniaturization, weight reduction, and cost reduction.

Abstract: The invention relates to an improved color display with temporary sequential primary color mixing, in the case of which a discharge lamp for dielectrically impeded discharges is used for backlighting.

Abstract: Disclosed is a display device (e.g., a liquid crystal display), and an apparatus and a method for driving the display device. The LCD includes an LCD panel having a plurality of gate lines, a plurality of data lines insulated from and intersecting the gate lines, and a plurality of TFTs each having a gate electrode connected to one of the gate lines and a source electrode each connected to one of the data lines; a gate driver for sequentially supplying gate drive signals to the gate lines to turn the TFTs ON; and a data driver for dividing the data lines into a certain number of blocks, each block having a predetermined number of data lines, and applying image signals to the data lines in an (n)th block, and applying precharging voltages to the data lines in an (n+j)th block. The apparatus includes the gate driver and the data driver.

Abstract: A light-emitting display device with low power consumption and its driving method. In the driving method of a light-emitting display wherein light-emitting elements are connected to the intersections of positive electrode lines and negative electrode lines arranged in a matrix, either one of the positive electrode lines or the negative electrode lines are employed as scan lines with the other employed as drive lines; while scanning the scan lines, drive sources are connected to desired drive lines in synchronization with the scan, whereby allowing the light-emitting elements connected to the intersections of the scan lines and drive lines to emit light, a first reset voltage is applied to all of the scan lines and a second reset voltage that is greater than the first reset voltage is applied to all of the drive lines during a reset period after a scan period for scanning an arbitrary scan line is completed and before scanning the following scan line is started.

Abstract: Improvements in accurately sensing a user manipulandum of a force feedback device. A force feedback device, coupled to a host computer, includes an actuator for outputting forces on a manipulandum and a sensor for detecting a position of the manipulandum. In one feature, a raw sensor value representing manipulandum position is adjusted based on compliance between sensor and manipulandum, where the adjustment can be based on a compliance constant and an output force. In another feature, a range of motion of the manipulandum is dynamically calibrated from startup. One boundary value of an assigned initial range is set equal to a received sensor value if the sensor value is outside the initial range, and the other boundary value is adjusted to maintain the size of the initial range unless the other boundary value has already been sensed outside the initial range.

Abstract: An electronic circuit including a plurality of D/A converters is operated to provide uniform outputs from the D/A converters even if the D/A converters have different levels of offset values by providing each D/A converter with a memory for offset correction digital data and an adder for adding the offset correction digital data to a digital input signal to the D/A converter. The uniformized outputs from the A/D converters may be used for providing a uniform display on a liquid crystal display apparatus. The liquid crystal apparatus may be provided with a pair of common signal lines for separately supplying positive polarity-picture signals and negative-polarity picture signals to an active matrix substrate for driving the liquid crystal.

Abstract: A display device includes a latch circuit storing digital data, a converter circuit converting the digital data stored in the latch circuit to an analog signal, a voltage regenerating circuit inputting the analog signal and outputting a video signal, and an image signal line supplied the video signal. The voltage regenerating circuit includes six TFTs wherein the TFTs are connected in a particular manner.

Abstract: A wireless transmission system for transmitting data to a user in a simulation system includes a light source for generating a modulated light beam for transmitting the data, an active pointing mechanism for actively pointing the light source, an optical receiver carried by the user for receiving and demodulating the modulated light beam, and a display or audio source for using the data to provide stimuli to the user. The light source preferably includes a laser device which is intensity-modulated with a wave form appropriate for the audio and video interfaces being used. The active pointing mechanism preferably includes a two-dimensional gimbal which receives tracking information from a tracking detector that tracks the optical receiver, and which uses that tracking information to actively point the light source. User position and head orientation are wirelessly tracked via optical sensors or feedback from user-worn sensor data.

Abstract: A method and apparatus for driving a plurality of addressable elements consist of driving and selectively enabling one or more addressable elements arranged as an M×N array using two drivers. A first and a second driver are used to drive first and second signals at slightly different frequencies on a first and a second display conductor. A plurality of pixels, coupled between the first and second display conductors, is addressed according to a pixel location in which the first signal is approximately in phase with the second signal. The pixel scan rate is proportional to the difference between the first and second signal frequencies. The first and second conductors may contain a plurality of delay elements and tap-off points. Conducting lines may be terminated by their characteristic impedance to prevent any reflection of the traveling signals.

Abstract: A key switch in which a pair of lever members which form a cross-link member are molded out of resin materials having different shrinkage coefficients. A shaft-receiving hole is formed in the lever member molded out of the resin material having a small shrinkage coefficient, while a linking shaft is formed on the lever member molded out of the resin material having a large shrinkage coefficient. When the key switch is structured in this way, after the lever member having the shaft-receiving hole has been molded, the resin material having a large shrinkage coefficient is hardened in a die in which the shaft-receiving hole forms a portion of a cavity in order to form the other lever member. By forming the other lever member, the linking shaft is formed in a pivotally mounted state in the shaft-receiving hole. Therefore, it is no longer necessary to link the pair of lever members by a manual operation.

Abstract: When the vehicle is traveling on a motorway, a display control module of a display controller determines that an obstacle is unlikely to be present, and restricts the display pattern of a sensed image sensed of an image sensing device to be displayed on a display device. Even when the vehicle is traveling on the motorway, if no stalled vehicle is detected, the display control module displays the sensed image without restricting it, thereby supporting drive operation of the driver.

Abstract: An image display device applies (M×N) data voltages in order to M rows of data lines N voltages at a time, and in synchronization with these data voltages, applies scan voltage in order to the N columns of scan lines. This scan voltage causes M rows and N columns of switching elements to turn on one column at a time, and accordingly, (M×N) data voltages that are applied from the M rows of data lines are individually held by M rows and N columns of voltage holding means. In accordance with these held voltages, M rows and N columns of drive transistors apply a drive voltage that is constantly applied to power supply electrodes to (M×N) organic EL elements. The M rows and N columns of organic EL elements are accordingly actively driven and a multiple gray-scale dot matrix image is displayed.