Abstract: A display device and method for supplying stable electric power for a light source are provided. A display device comprises a plurality of light sources, a variable electrical power supply which supplies electric power for the light sources, a switching unit which is connected in series with the light sources, and a controller which controls the variable electrical power supply so that voltage across both ends of the switching unit is consistently held in relation to voltage across both ends of the light sources.

Abstract: A pixel driving method is provided. The driving method includes selecting subpixels from different frame periods with different selecting modes in order to form a pixel array, and driving the pixel array. Different pixel arrays that are formed with subpixels selected from different frame periods are shifted by a distance of one subpixel along the row direction, the column direction, or both directions from each other. Thus, the image resolution of a display panel is improved.

Abstract: The present invention features a liquid crystal display device including a printed circuit board, PCB, substrate composed of non-conductive material and having a front surface and having an opposing back surface that contains electrical circuitry and is located near the back of the display device. A liquid crystal display is disposed on the front PCB substrate surface and includes first and second electrode layers and a dispersion layer disposed between the first and second electrode layers. The dispersion layer includes liquid crystal (e.g., cholesteric liquid crystal) dispersed in a polymer matrix. Electrical through-conductors extend between the front substrate surface and the back substrate surface. The through-conductors are in electrical contact with the first and second electrode layers. Drive electronics are disposed on the PCB substrate and are adapted to apply voltage pulses to the first and second electrodes effective to form images on the liquid crystal display.

Abstract: LCD panel response time parameters are stored in local memory of the LCD panel, such as EDID ROM, for retrieval by an information handling system to use in adjusting visual information for presentation on the LCD panel. For instance, a response time compensation engine running on firmware in the graphics controller or in the operating system display driver applies the response time parameters to adjust visual information for improved image quality at the LCD panel. The response time parameters are, for instance, an average of response time of liquid crystal material applied to a non-linear approximation.

Abstract: There is provided a display apparatus including a liquid crystal display having a parallax barrier so that a first image and a second image are respectively visible from different angles on a commonly provided display screen, a backlight that sheds lights from a backside of a liquid crystal panel, a touch operating portion provided at a surface side of the liquid crystal display, and an antiglare layer provided at a surface side of the touch operating portion.

Abstract: A liquid crystal drive controller comprises first lines drawn from the input terminals of a strobing comparator, first external terminals capable of connecting the first lines to strobing transmission lines, second lines drawn from a strobing offset current source, and second external terminals capable of connecting the second lines to the strobing transmission lines. The first lines and the first external terminals, and the second lines and the second external terminals are electrically insulated from each other on the liquid crystal drive controller. First wires and second wires are connected to strobing terminals so that the first wires are not included in the strobing offset current path, thereby eliminating a shortage of margin.

Abstract: A display apparatus includes a display panel that displays individual images in a plurality of viewing directions on a common screen, a parallax barrier that makes the individual images respectively visible from the plurality of viewing directions, a light guide plate provided on a back surface of the display panel, and a plurality of light-emitting portions arranged at one or more sides of the light guide plate. The plurality of light-emitting portions are arranged in a line in a thickness direction of the light guide plate.

Abstract: When displaying moving images by using liquid crystal panels and others, a problem exists in that tail streaks occur, and image degradation is resultantly caused. To solve this problem, an echo suppression circuit divides a video signal into a pair composed of two successive frames for comparison between these two frames in signal level for the purpose of suppressing an echo phenomenon occurring when a liquid crystal panel displays video signals including moving images. If these two frames are not the same in signal level, the signal is accordingly corrected so as to equalize the signal level of these frames. Based on the video signals and others corrected by the echo suppression circuit, a controller operates the liquid crystal panel with AC drive through a source driver and a gate driver. As such, the drive voltage used to operate the liquid crystal panel with AC drive is adjusted so as to be balanced between positive and negative.

Abstract: The pixel in a transflective color LCD panel of the present invention has an additional sub-pixel area. The pixel is divided into three or more color sub-pixels in R, G, B and at least one sub-pixel M. Each of the color sub-pixels is divided into a transmission area and a reflection area to display color image data. The sub-pixel M can be entirely reflective or partially reflective for displaying a further image data. Two or more algorithms are used to compute the further image data based on the color image data. A selector is used to select one of the algorithms for displaying the further image data. The algorithm selection can be used by a user or automatically selected according to the brightness of ambient light. The transflective LCD panel can be used in a reflective mode when the ambient light reaches a brightness level.

Abstract: A display device includes a pixel defined by a plurality of subpixels. The plurality of subpixels include: first and second red subpixels for displaying red; a green subpixel for displaying green; a blue subpixel for displaying blue; and a yellow subpixel for displaying yellow.

Abstract: Provided are a method and apparatus for driving a liquid crystal display. The apparatus includes: a moving image detector which reads an input signal frame by frame and compares gray-scale data of a previous frame to gray-scale data of the current frame to detect a moving pattern; a gray-scale difference calculator which calculates a gray-scale difference in the detected pattern to discriminate the boundary of the pattern from the inside of the pattern; and an output processor that generates an over-driving voltage for over-driving pixels corresponding to the inside of the pattern and applies the over-driving voltage to pixels of liquid crystal.

Abstract: A grayscale voltage generating circuit includes a first constant-voltage source for generating a high potential; a second constant-voltage source for generating a low potential; ? resistor connected between outputs of the first and second constant-voltage sources; a difference voltage detecting circuit for detecting a difference voltage across the ? resistor; and a voltage-to-current converting circuit for converting the difference voltage to a current by a resistor and outputting the current as a source current and a sink current. The source current output and sink current output of the voltage-to-current converting circuit are connected to the high and low potential sides, respectively, of the ? resistor.

Abstract: A driving circuit that drives a data line of an electro-optic device includes: a plurality of grayscale signal lines supplied with grayscale voltages, respectively; a voltage-selecting circuit that selects one grayscale voltage from the plurality of grayscale voltages supplied to the plurality of grayscale signal lines; an operational amplifier that drives, based on the grayscale voltage selected by the voltage-selecting circuit, an output line connected to the data line; and first and second resistance circuits that generate a plurality of grayscale voltages obtained by dividing a voltage between a high potential-side power source and a low potential-side power source. The first resistance circuit has a total resistance value smaller than a total resistance value of the second resistance circuit. Each of the plurality of grayscale voltages divided by the first resistance circuit is supplied, during a first period, to each of the grayscale signal lines.

Abstract: A scan driving circuit and an organic light emitting display using the scan driving circuit are disclosed. The circuit effectively reduces power consumption by removing a flow path of a static current from a stage of each unit. The scan driving circuit is coupled with an input signal line or an output voltage line of a previous stage, and comprises a plurality of stages coupled with a two-phase clock signal input line, a first scan driver sequentially outputs a selection signal and/or a boost signal through the plurality of stages. A second scan driver sequentially outputs an emission signal through the plurality of stages. The first scan driver includes a scan drive unit to output the selection signal, a first boost drive unit to output an odd-numbered boost signal, and a second boost drive unit to output an even-numbered boost signal.

Abstract: An apparatus is for use in a display device having a defective signal line with a defect that isolates a first signal line portion from a second signal line portion of the defective signal line. The apparatus includes a signal driver that has a driver output terminal electrically connected to the first signal line portion, and a first repair buffer having an input terminal and an output terminal. A repair line is electrically connected to the output terminal of the first repair buffer. The input terminal of the first repair buffer is initially electrically isolated from the defective signal line. To repair the defective signal line, the input terminal of the first repair buffer is electrically connected to the defective signal line to enable a signal from the signal driver to travel through the first repair buffer over the repair line to the second signal line portion of the defective signal line.

Abstract: Driving methods and devices are provided. In a representative method, Nth and (N+K)th rows of pixels are scanned sequentially and a signal of a first polarity is provided in sequence to the Nth and (N+K)th rows of scanned pixels, during a first period of a frame period. During a second period of the frame period, (N+l)th and (N+K+1)th rows of pixels are scanned sequentially and a signal of a second polarity is provided in sequence to the (N+1)th and (N+K+1)th rows of scanned pixels, wherein N and K are both integers, N>0, K is even and K>1.

Abstract: An object of the present invention is to provide a liquid crystal device which can suppress cross-talk and can maintain uniformity of the display quality within the screen, and for which problems such as insufficient writing do not occur. In a liquid crystal light valve of the invention, an image signal for which the polarity is inverted for each one horizontal period, is supplied to each data line, and for each horizontal period plural pulse signals which each rise at a different timing, are supplied to each of plural scanning lines while skipping one part of the scanning lines. Moreover driving is such that in any one horizontal period, plural scanning lines, to which is supplied a pulse signal rising at a timing corresponding to an application period of a positive polarity potential, are adjacent to each other, and plural scanning lines, to which is supplied a pulse signal rising at a timing corresponding to an application period of a negative polarity potential, are adjacent to each other.

Abstract: An apparatus and method of driving a display panel are provided. The apparatus includes a comparison unit and a source driver. The comparison unit receives and stores a current line data, and compares the current line data with a previous stored line data. When a pixel data within the current line data and another pixel data within the previous line data at the same position are not identical, the comparison unit outputs the pixel data of the current line data, and the source driver latches the pixel data for driving the display panel, which is output from the comparison unit. When the pixel data within the current line data and another pixel data within the previous line data at the same position are not identical, the comparison unit does not output the pixel data, and the source driver drives the display panel in accordance with the previously latched pixel data.

Abstract: A driving device, suitable for driving a liquid crystal display panel, comprises a gate driving unit, a source driving unit, a power supply, a unit for reducing tide phenomenon and a current/voltage limit unit. The gate driving unit and the source driving unit are electrically connected with the liquid crystal display panel respectively. The power supply is electrically connected with the gate driving unit and the source driving unit. The unit for reducing tide phenomenon is electrically connected with the gate driving unit, and the current/voltage limit unit is electrically connected with the power supply and the gate driving unit. The current/voltage limit unit is used for limiting the voltages or currents from the power supply to the gate driving unit while reducing the tide phenomenon of the liquid crystal display panel, so as to decrease the possibility of the bonding pads damaged by the rush currents.

Abstract: A liquid crystal display (LCD) control circuit is disclosed. The control circuit includes an edge detecting circuit for detecting image edges in each frame of an image data, and outputting an edge data and a non-edge data; a memory for saving the edge data of the frame; a driving decision circuit for generating a driving voltage setting according to the non-edge data of a current frame, and generating an overdriving voltage setting according to the edge data of a previous frame saved in the memory and the edge data of the current frame outputted by the edge detecting circuit; and an output device for outputting the driving voltage setting and the overdriving voltage setting.

Abstract: A display device includes a display panel having pixels arranged in a matrix form, a driving circuit for outputting an analog voltage according to a video signal to the pixels through signal lines, a plurality of measuring circuits each for detecting the amount of transmitted light, a single totalizing circuit for totalizing the results of measurements made by the measuring circuits, and a control circuit for adjusting a potential on a common electrode of the display panel in accordance with the result of the totalization from the totalizing circuit. The results of measurements made by the plurality of measuring circuits are totalized by the single totalizing circuit.

Abstract: This invention realizes reduction in consumption of DC current in a level converter circuit by setting level shifters in an operating state only when necessary in accordance with hierarchical control, in which an output pulse of a level shifter (311) that is constantly in a power-ON state is used to set a level shifter (321) of the next hierarchical level in the operating state, then output pulses of the level shifter (311) and the level shifter (321) are used to generate control pulses LT1 and LT2, which are used to set level shifters (341 to 346) of the next hierarchical level in the operating state, and an output pulse of one of the level shifters is used to set level shifters (351), (352) and (353) of the next hierarchical level in the operating state.

Abstract: In order to achieve lower power consumption, a technique of performing display (partial display) by utilizing only a part of a display area is used. For example, a display area is divided, a plurality of driver circuits for driving the divided display areas independently are provided, and only a region where a fixed pattern is displayed is driven in a power saving mode, thereby partial display is performed; however, display cannot be performed at an arbitrary position. Alternatively, partial display can be performed by inputting a video signal to a pixel in an arbitrary display area; however, a structure of a driver circuit is complicated. The object of the invention is to provide a display device which can perform partial display at an arbitrary position and reduce power consumption. In partial display, operation of a signal line driver circuit is set so as to be stopped and a non-display signal is set so as to be outputted from the signal line driver circuit when a pixel in a non-display area is selected.

Abstract: The present invention provides a technique which, in a display device, can easily realize the inversion of an image displayed on a display panel in the lateral direction as well as in the vertical direction without requiring an external switching part for changing over a start pulse, the changeover of a signal and the like.

Abstract: The present invention relates to a display apparatus and a method, a storage medium, and a program which cause a so-called “hold-type display apparatus” to display an image that makes it difficult for motion blur and jerkiness to be perceived at a lower frame rate. Display of individual pixels of a screen on an LCD 12 is held in each period of a frame. A display controller 11 controls the display of the LCD 12 so as to time-sequentially increase or time-sequentially reduce the brightness of the screen in each period of a frame. The present invention is applicable to a display apparatus.

Abstract: A backlight for a liquid crystal display including a plurality of liquid crystal display elements arranged in a matrix of n rows and m columns, in which optical transmittance of each of the liquid crystal display elements is changed, thereby switching an image every one frame period includes a plurality of electron-emitting elements and a phosphor. Each electron-emitting element is disposed to face a liquid crystal display element group including a plurality of adjacent liquid crystal display elements with the phosphor therebetween. In a sub-frame period divided from one frame period, each electron-emitting element accumulates and emits an amount of electrons according to the optical transmittance of each of the plurality of liquid crystal display elements facing each of the electron-emitting elements. In one frame period, the phosphor emits an amount of light which corresponds to the optical transmittance of the liquid crystal display elements a plurality of times.

Abstract: A backlight used for a liquid crystal display including a plurality of liquid crystal display elements arranged in a matrix of n rows and m columns, in which constant-time row scanning is performed in row order to change the optical transmittance of the liquid crystal display elements includes a plurality of electron-emitting elements and a phosphor. Each of the electron-emitting elements is disposed so as to face a liquid crystal display element group including a plurality of adjacent liquid crystal display elements with the phosphor therebetween. An electron emission voltage is applied to electron-emitting elements facing liquid crystal display elements for which the row scanning is completed and whose optical transmittance becomes constant. The electron-emitting elements apply electrons to the phosphor. The phosphor is irradiated with electrons, and emits light to the liquid crystal display elements whose optical transmittance becomes constant.

Abstract: A displaying method includes forming nuclear crystals of a metal on an electrode, and depositing a metal on a surface of the nuclear crystals from a solution including a metallic ion, so as to form particles having a particle diameter corresponding to a display color.

Abstract: An electrophoresis device includes a first substrate having a plurality of pixel electrodes formed on a surface thereof, a second substrate having a common electrode formed on a surface thereof and disposed to face the pixel electrodes, and an electrophoretic layer disposed between the pixel electrodes and the common electrode. The electrophoresis device makes electrophoretic particles migrate by keeping the potential of each pixel electrode constant and changing a voltage to be applied to the common electrode. The device also includes a voltage control means which supplies a voltage whose minimum voltage is not less than V3 and whose maximum voltage are not more than V4 to the common electrode, in a case where a potential which appears in each pixel electrode when a minimum voltage V1 is supplied to a voltage supply means to each pixel electrode is set to V3 and a potential which appears in each pixel electrode when a maximum voltage V2 is supplied to the voltage supply means is set to V4.

Abstract: A display device comprises a display unit and a base for supporting the display unit to locate at difference positions. The base comprises a first element moved between a first position and a second position, a first magnet-generator and two second magnet-generators disposed on the first element with respect to the first magnet-generator. As the second magnet-generator is inducted by the first magnet-generator, the first element is moved from the first position to the second position.

Abstract: A hand-writing input device comprises: an input surface, a guidance device provided on the input surface along a predetermined track to guide a finger or pen along the track; a plurality of switch elements provided at particular positions on the track. When a particular character is inputted, the triggered switch element outputs the corresponding signal, and the combinations of the signals outputted by the switch elements correspond to the inputted characters. Since hand-writing input is performed by guiding a finger or pen along a predetermined track, only few switch elements are needed, thereby simplifying hand-writing recognition, reducing software requirements and increasing recognition accuracy.

Abstract: A portable communication device includes first and second parts, a user input device, and a control unit. The second part is rotatably coupled through a hinge to an end of the first part and configured to be positioned relative to the first part in at least one open position and one closed position. At least one of the first and second parts includes an information presentation unit that is configured to present a first list of items stored in the device for viewing by a user when the second part is in the closed position. The first list includes at least a first item and one or more further items corresponding to the at least first item. The user input device is configured to sense a user selection of a displayed item. The control unit is configured to respond to user selection sensed by the user input device of an item from the first list of items by displaying a second list comprising letters, and to respond to user selection among the displayed letters by modifying the displayed first list of items.

Abstract: A portable electronic device that can be held in one hand includes a graphical display and an input device that is mounted on a surface opposite the graphical display. The input device can be operated with the user's index finger. This configuration is very space efficient and allows the user to view the graphical display and control the device with either the user's left or right hand.

Abstract: A multilayered task supporting apparatus includes: a display area that is divided into three or more; an input unit that is provided with a group of control buttons for assigning a display object; and a control unit that controls a content to be displayed on the display area on the basis of an input from the input unit.

Abstract: An actuator for an elongated object may include one or two electromagnetically-activated braking mechanisms to provide haptic sensations in conjunction with a device that tracks a rotationally symmetric instrument manipulated by a user. A contact-free motion sensor may provide information about the longitudinal movement and about the rotational movement of the instrument, and a control unit may receive movement information from the motion sensor and may be connected with the electromagnetically-activated braking mechanisms. Each braking mechanism may include a first surface and a second surface, the second one at least being movable in the direction of the first one to pinch or release the instrument as a function of the motion information provided by the motion sensor. In the case of two braking mechanisms a braking force may be applied on the guided instrument for both degrees of freedom independently.

Abstract: Image control involves receiving source images defined with respect to respective source coordinate systems from source image generators also respectively associated with source IDs. The source images are composed to generate a composite image defined with respect to a composed coordinate system, and the composed image is sent to a viewer which displays the composed image and outputs an HID signal which indicates information defined with respect to the composed coordinate system. A layout manager stores source IDs respectively associated with layout information including position and size of at least one of the source images. An image composer composes the source images according to the layout information. An analyzer analyzes the HID signal for editing layout information stored in the layout manager, and determines a source ID associated with a source image according to the edited layout information.

Abstract: A character input method for a portable device including a display screen and the portable device are provided. The character input method for a portable device includes a step of locating a pointer at a predetermined pointer start area on the display screen; a step of sensing the movement of an object which moves being in contact with an optical interface unit of the portable device; a step of inputting a character by moving the pointer from the pointer start area according to the sensed movement; and a step of returning the pointer to the pointer start area according to the input of the character.

Abstract: A cushioned cap for a control stick of an electronic device defining a recess for receiving at least a portion of a control stick. The recess includes a lower portion and an upper portion.

Abstract: An evaluation method is disclosed for a control element for a motor vehicle, wherein with an actuating element, an optical system comprised of a transmitter and a receiver is interrupted and electrically evaluated by an actuating element, whereby the interruption of the optical systems is evaluated analogous to the deflection of the actuating element.

Abstract: A mobile information terminal has a front surface on which a display surface of a display device is arranged and a rear surface on which a plurality of operation keys are arranged. The mobile information terminal further has a half-depressing sensor for detecting that each of the operation keys is half-depressed and/or a touch sensor for detecting that each of the operation keys is touched. A control section executes a processing operation to cause the display device to display an image showing the arrangement of said operation keys and to change an icon which corresponds to a key of operation keys when a control section determines, according to an input signal from the half-depressing sensor or the touch sensor, that the finger of the operator is placed on this key of operation keys.

Abstract: A keyboard with a camera comprises a plurality of general keys, a plurality of hot keys, a keyboard module, a hot key module and a camera module. The keyboard module outputs corresponding messages in response of the input of the general keys. The hotkey module outputs corresponding instructions in response of the inputs of the hot keys. The camera module coupled to the hotkey module operates in response of the instructions and transmits operating results to a computer.

Abstract: A remote keyboard has keys which are illuminated for identification under a dim motherboard. For a first embodiment of the invention, the identifying symbol or symbols on each key cap of the keyboard is formed from luminescent material. Alternatively, the symbol or symbols on each key cap are formed from a translucent material in which tritium is embedded. Tritium, which has a half-life of about 12.5 years, emits low-energy beta particle radiation. The radiation, which is of sufficiently low energy that it may be blocked by a piece of paper, may be rendered innocuous by placing clear plastic radiation shields over each key cap. For a second embodiment of the invention, the key caps themselves are molded from luminescent material, while the symbols are formed from contrasting black or dark-colored non-luminescent material.

Abstract: Systems and methods are disclosed to provide input/output for a portable data device by projecting a keyboard pattern using a light projector; capturing one or more images of a user's digits on the keyboard pattern with a camera; decoding a character being typed on the keyboard pattern; and displaying the typed character using the light projector.

Abstract: A user interface for receiving inputs from a user includes a touch sensitive surface having a plurality of regions where each region corresponds to a switch having a function. The user interface also includes an interface disposed on the touch sensitive surface over at least one of the plurality of regions. The interface comprises a material that is at least partially transparent and that is configured to provide tactile feedback to the user. The touch sensitive surface may emit light that is visible through the interface. The interface may further include a plurality of buttons disposed over the plurality of regions wherein the light is selectively provided to each of the plurality of buttons. The touch sensitive surface may include a display that is configured to provide text and graphics that are visible through the interface. The user interface may be mounted in, for example, a vehicle.

Abstract: An interactive system is disclosed that includes an infrared source assembly for illuminating an exposed interface surface that is exposed to a user with substantially uniform infrared illumination, a diffuser for diffusing infrared illumination, and an infrared detection system for capturing an infrared image of the exposed interface surface through the diffuser. The infrared detection system provides image data that is representative of infrared illumination intensity of the exposed interface surface.

Abstract: Systems and methods are disclosed for providing computer input/output includes rendering an image on a display while generating sound with a sheet of optically clear material positioned above the display, and receiving data input from a touch sensitive array formed on the sheet.

Abstract: This invention is a kind of layout of touch panel for avoiding moires, which deploys a transparent conductive layout on the touch panel, and let the open area of the transparent conductive layout discontinuous match and cover the corresponding sub-pixels of the display such that the behavior of the display brightness passing through the open area of the transparent conductive layout is dispersed sufficiently so as to avoid the difference of the display brightness passing through the open area sensed by human eyes, and then to avoid moires generated on the touch panel.

Abstract: An input method for a touch screen is provided. The touch screen includes a virtual keyboard having a plurality of virtual keys. The method includes a step of displaying a possible key frame in response to the action of touching one of the virtual keys. The possible key frame includes a plurality of possible keys, which have relatively higher possibilities to be inputted after the one of the virtual keys is touched.

Abstract: An easy to use electronic device is provided. The electronic device functions as a telephone and has a display portion, an audio input portion, an audio output portion, and operation keys. The display portion has a passive element, and the operation keys have LEDs. The direction of an image displayed by the LEDs is switchable.

Abstract: In the state where a card having a hole or a cut-out portion of a predetermined shape is placed on a touch panel of a game apparatus, a player performs an input operation along the hole or the cut-out portion. Then, the input operation is detected. It is determined whether or not the input operation on the touch panel has been performed using the card, based on the detected input track and determination information for determining whether or not the input operation has been performed along the hole or cut-out portion of the card which is placed on the touch panel. In accordance with the determination result, an event is generated. Thus, a novel input system, as a combination of a touch panel and a card, for generating an event which influences the progress of the game is realized.