Abstract: An organic light emitting display (OLED) panel has a plurality of organic light emitting diodes. The organic light emitting diodes are electrically connected to a plurality of segment lines and a plurality of common lines in a matrix structure. The organic light emitting diodes electrically connected to the same common lines are divided into a first group and a second group. Driving currents are separately supplied to the organic light emitting diodes of the first group and the second group according to a first pulse width modulation (PWM) manner and a second PWM manner. The first PWM manner and the second PWM manner have complementary waveforms in a period.

Abstract: It is an object to provide a light-emitting device and an electronic device which can provide an image with excellent image quality. One of the present inventions is a light-emitting device including a plurality of light-emitting elements each exhibiting a different emission color. At least one of the plurality of light-emitting elements has n light-emitting layers (n is a natural number, n?2) between a pair of electrodes. Further, at least one of the n light-emitting layers includes a substance which provides emission from a triplet excitation state. In a light-emitting device having such a structure, an image is displayed by combining emissions from the plurality of light-emitting elements.

Abstract: A communication system has lighting equipment that has transmitter comprising multiple light-emitting elements that each emit light of different wavelengths and terminal equipment that has light-receiver comprising multiple light-receiving elements that receive optical signals for each of the different wavelengths.

Abstract: The present invention provides a modular display system (10) which can be used in a variety of environments for displaying informational signage, advertising, relaying T.V. images, art installations and so on. The system (10) comprises at least one fascia assembly (12) comprising an array of open-ended cells (18) and at least one illumination assembly (14) comprising an array of light sources (32) such as LEDs. Each light source (32) is aligned with a cell (18) and is controlled by a processor (34). Typically, the array of cells (18) is sandwiched between protective front and rear panels (20, 22). A large display may be built up simply and cost-effectively by arranging a number of fascia assemblies (12) together in the desired geometry, with the processors (34) networked together and controlled by an external control processor.

Abstract: A display device comprising a light guide (12), a front plate (14), and an intermediate electromechanically operable foil (16). Two electrode layers (22, 23) are arranged on either side of the foil (16) to induce electrostatic forces on the foil (16) and to bring selected portions of the foil into contact with the light guide (12), thereby extracting light from the light guide (12). The second electrode layer (22) is arranged on the opposite side of the light guide (12) with reference to the foil (16), and separated from the light guide (12) by means of a refractive layer (28). As no electrode layer is required on the light guide itself, the light path of rays extracted from the light guide is cleaner, and the absorption of light is reduced.

Abstract: A bi-stabilized cholesteric liquid crystal device with auto execution function is disclosed. The cholestric liquid crystal device comprises a microprocessor, a cholestric liquid display device and a memory. The microprocessor is connected to a data transmission interface, a bi-stabilized cholesteric liquid crystal display device interface and a memory interface respectively. The data transmission interface is connected to a host end. The bi-stabilized cholesteric liquid crystal display device is connected to the bi-stabilized cholesteric liquid crystal display device interface and is adopted for displaying information transmitted from the microprocessor. The memory is connected to the memory interface and comprises an application program block and a data block, wherein the application program block comprises an execution program for reading data in the memory.

Abstract: A driving method of a liquid crystal device for recording an image, the liquid crystal device including a liquid crystal layer having a cholesteric liquid crystal, a photoconductor layer accumulated on the liquid crystal layer, and electrodes, includes initializing an entire liquid crystal layer to a focal conic texture by applying a voltage exceeding a threshold value of transition from a planar texture to a focal conic texture, exposing the liquid crystal device imagewise while applying a voltage not exceeding a threshold value from the focal conic texture to a homeotropic texture upon non-exposure but exceeding the threshold value upon exposure and that provides bistability of the focal conic texture and the homeotropic texture with hysteresis upon non-exposure, and fixing a displayed image by releasing an application of voltage to change a part of the liquid crystal layer changed to the homeotropic texture to the planar texture.

Abstract: A liquid crystal display includes a plurality of pixels arranged in the form of a matrix and having first and second sub-pixels. A plurality of gate lines are connected to the first and second sub-pixels to transmit gate signals thereto. A plurality of first and second data lines cross the gate lines, and are connected to the first and second sub-pixels to transmit first and second data voltages thereto, respectively. A data driver outputs the first and second data voltages to the first and second data lines, respectively. The first and second data voltages have the same polarity. A pixel is divided into two sub-pixels, and different data voltages are separately applied to the two sub-pixels, thereby enhancing visibility.

Abstract: A display panel driver includes: a clock generator for generating a clock signal; a horizontal reference generating circuit having a first frequency divider for dividing the frequency of the clock signal; a vertical reference generating circuit having a second frequency divider for dividing the frequency of the output from the first frequency divider; a switch circuit having one input terminal to which an external vertical synchronizing signal is supplied and having another input terminal to which the output signal from the second frequency divider is supplied and which selectively output one of said input terminals; and a CPU, when switching between the input terminals of the switch circuit is performed, alters the oscillation frequency of the clock generator or the frequency division ratio at the first frequency divider.

Abstract: A driver circuit includes first and second color component first and second grayscale signal line groups which extend in a first direction and to which grayscale voltages are supplied, first and second voltage select circuits which output the grayscale voltages corresponding to first and second grayscale data from the grayscale voltages supplied to the first and second grayscale signal line groups, and first and second output circuits which drive data lines based on the grayscale voltages output from the first and second voltage select circuits. The first and second voltage select circuits are disposed to be adjacent in the first direction in an upper layer or a lower layer of the second grayscale signal line group, and the grayscale voltages supplied to the first grayscale signal line group are supplied to the first voltage select circuit through interconnects extending in a second direction which intersects the first direction.

Abstract: A relaxation time in a common inversion drive of a liquid crystal display device is minimized.

Abstract: A liquid crystal display and a liquid crystal display panel thereof. Gates on thin film transistors serving as switches in the same row of pixels are coupled with a gate line. A scan signal is substantially inputted to a middle of the gate line and transmitted to two extremities of the gate line, so that the two thin film transistors, which are coupled with the two extremities of the gate line have substantially the same time for turning on/off. Namely, the pulse waveforms of scan signals received by the two pixels, which are spaced apart by a longest distance, are substantially the same.

Abstract: This invention relates to an organic light emitting diode display device that is adaptive for preventing a characteristic change of a device which drives the organic light emitting diode and for securing reliability of the device.

Abstract: A pixel is provided in which normal display of an image is possible even if a sustain period is shorter than an address period in a driving method combining digital gray scales and time gray scales, and in which operation can be compensated by changing the electric potential of a signal line even for a case in which the EL driver transistor becomes normally on due to deterioration. One of a source region and a drain region of an erasure TFT is connected to an electric current supply line, and the remaining one of the source region and the drain region is connected to a gate signal line. It is possible to change the voltage between a gate and a source of an EL driver TFT by changing the electric potential of the gate signal line so that the EL driver TFT is placed in a non-conducting state with certainty with this structure, even for cases in which the EL driver TFT becomes normally on due to a shift in the value of its threshold voltage.

Abstract: A voltage level converter for driving resistive and capacitive loads of a display device includes a charge circuit having a capacitance, a transistor NMOS1, a capacitance, and a transistor; a discharge circuit having transistors; and a reset signal generating circuit provided in a preceding stage of the discharge circuit. A signal having an inverted phase to an input pulse is applied to the reset signal generating circuit. An output of the reset signal generating circuit is supplied to gate terminals of the transistors, thus realizing reliable turning ON or OFF the discharge circuit.

Abstract: An LCD device includes an LCD panel, a source driving part, an operating part, a mean voltage generating part, and a pre-charging part. The LCD panel includes a switching element and a liquid crystal capacitor. The switching element is formed in a region defined by gate and source lines adjacent to each other. The liquid crystal capacitor is electrically connected to the switching element. The source driving part converts data signals into data voltages of analog type. The operating part determines a mean data signal of the data signals. The mean voltage generating part converts the mean data signal into a mean data voltage of analog type. The pre-charging part selectively applies the data voltages and the mean data voltage to the source lines, thereby improving an image display quality of the LCD device.

Abstract: The present invention reduces the number of level shifters to obtain smaller layout area while remaining the original function of gate circuit, where a signal from a shift register is transferred to a level shifter for voltage shifting and afterward is transferred to a proper buffer through a selector.

Abstract: The present invention provides a source driver used in an LCD, especially a big LCD, so that energy consumed can be saved together with small amplitude and reduced electromagnetic interference.

Abstract: A method for driving a liquid crystal panel that includes horizontal scan wires, data wires, pixel electrodes surrounded by the horizontal scan wires and the data wires; and switching elements connected to the pixel electrodes, wherein the switching elements are controlled by a gate selection signal and during a on-time period, the switching elements is turned on, and an image data signal output from the data wires is supplied to the pixel electrodes by the switching elements. The method includes: detecting a peripheral temperature of the liquid crystal panel; and controlling the gate selection signal so that when the detected temperature is within a normal temperature range, the on-time period is set to a first gate selection period, and that when the detected temperature is within a low temperature range, the on-time period is set to a second gate selection period longer than the first gate selection period.

Abstract: A heatsink made of aluminum is provided in a liquid crystal display device. A plurality of light emitting diodes are contacted to a front surface of the heatsink. A fin unit is contacted to a rear surface of the heatsink. In addition, a display panel is supported by a holding member so as to be positioned at a constant distance from the light emitting diodes. The holding member is composed of a front cover and a rear cover of the display panel, supported by the heatsink and a chassis provided between the display panel and the rear cover.

Abstract: An interface unit electrically coupled to a display module. The interface unit includes an interface controller and a pin mask. The interface controller is for receiving a first display signal and outputting a second display signal under a writing mode. The pin mask has N pins electrically coupled to the interface controller. The interface controller selectively and electrically couple M pins of the display module to the N pins according to a pin configuration mode, and outputs the second display signal to the display module for display via the N pins and the M pins.

Abstract: An image data processing apparatus divides image data into a plurality of pixel data including a set of pixel data corresponding to a set of signal lines of a display device selectively controlled by an element, and stores the divided image data. Corresponding to one of the divided plurality of image data, one of the stored plurality of pixel data is selected to generate differential data.

Abstract: Electrophoretic display units (100) comprising pixels (11) situated between a common electrode (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which make disturbances more visible. To camouflage such disturbances, instead of one common electrode (6), different counter electrodes (16,17) coupled to different portions (66,67) of the electrophoretic display panel (60) are introduced. First and second counter electrodes (16,17) receive first and second voltage signals (V16, V17) lik˜ alternating voltage signals having opposite phases. First shaking data pulses (V16-VE1, V16-VE3) are supplied to the first portion (66) and second shaking data pulses (V17-VE2, V17-VE4) are supplied to the second portion (67), which first and second shaking data pulses have opposite amplitudes. Setting signals (S1,S2,S3,S4) supplied during setting frame period (FS) reduce voltage swings at pixel electrodes (5).

Abstract: An optically triggered interactive apparatus (100), comprises a video camera (104) arranged to capture a reference video image of a scene (112). A graphical user interface (107) is used to select a target area (124b) within the reference video image. A processor (106) arranged to detect the presence of light incident within the target area (124b) of an active video image captured by the video camera (104). The processor is arranged to determine an outer extent of an torch beam (136a,b) within the scene (112) and outputs a trigger signal to a further processor (102ah) when a given proportion of the target area forms part of the illuminated area and/or when a given proportion of the illuminated area lies within the target area.

Abstract: In an audio-signal playback system, a remote control device (3) for remotely controlling a playback device (2) for audio signals comprises a detector (7) for detecting mobile-phone radio signals (5) from a mobile phone (4), wherein, on detection of the mobile-phone radio signal (5), the remote a control device (3) is designed to emit to the playback device (2), in a wireless manner, a volume-influencing signal (6) to influence the volume of the playback of the audio signals by the playback device (2).

Abstract: The integrated structure of the stress sensor section with the control section facilitates the confirmatin of the matching of both sections before the input device is incorporated into an electronic device. For example, it is possible to select only the input device which exhibits favorable matching as a result of the confirmation and to incorporate it in the electronic device. Therefore, with the above-described structure of the present invention, and input device that enables constantly favorable matching of both the stress section and the control section can be provided.

Abstract: A pipeline A/D converter of the present invention includes a plurality of stages each operating for A/D conversion and a digital computing portion that outputs an A/D converted signal based on a digital signal output from each of the stages. In each of the stages, an analog signal from the preceding stage is sampled by passive elements C1 and C2 in a first period, and one of the passive elements is used as a feedback element in a second period to perform adding/subtracting with respect to the signal sampled by the other passive element. By the control from the digital computing portion, a test signal Tink is used instead of an analog output signal Vo(k?1), and a unique conversion-error value is detected and corrected based on the digital signal obtained by the operation of each of the stages. It is possible to obtain a high-resolution A/D convert that can suppress a conversion error caused by the relative error of capacitors used for analog signal processing without decreasing the speed of A/D conversion.

Abstract: A game performing method realizable of finer and easier operational input with a joy stick. The game performing method for an apparatus comprising an input section having an operating handle capable of inputting an inclination of a desired angle in a desired direction, has: controlling a virtual handle of a player character according to operation inputted through the operating handle; detecting an inclined direction and an inclined angle of the operating handle; and changing a handle angle of the virtual handle in a direction according to change in the inclined direction when the change in the inclined direction is detected by detecting the inclined direction and the inclined angle of the operating handle.

Abstract: Provided is a wired or wireless mouse, one of peripheral devices of a computer. The mouse is capable of installing a built-in microphone in the mouse without a design change of a mouse surface, outputting a voice signal from the microphone to a soundcard of a computer through a separate output line different from an output line of the mouse, removing noise generated when a voice signal is output during operation of the mouse, transmitting the voice signal to the computer through the microphone even while an application program is executed in the computer through the mouse, and improving sensitivity of the voice signal input into the computer.

Abstract: An image capturing device is disclosed. The image capturing device includes: a light-emitting component for generating a light ray; a light-guiding component for providing a first straight light-guiding path to guide the light ray generated by the light-emitting component toward a surface; and a sensor for sensing the light ray reflected by the surface to detect a movement of the image capturing device on the surface.

Abstract: Embodiments of the present invention enable an optical device to track on a diffusing surface over which a transparent and/or translucent and/or optically smooth surface is placed. Some embodiments are directed towards detecting when an optical device is lifted off the surface it was resting on. Embodiments also include a sensing system that detects the z distance (distance to the tracking surface) and improves image quality by improving the effectiveness of the optical sensor subsystem and/or the illumination subsystem at the detected z distance. Other embodiments include a system and method that enables an optical device to track on a transparent and/or translucent and/or optically smooth surface alone. This may involve dark-field imaging based on certain features (e.g., dirt) already present on the transparent surface. Alternately, this may involve creating features such as droplets, spreading dirt residue, and creating thermal spots, which can be used for tracking.

Abstract: A personalized handset keyboard symbols input system and method thereof, which can be utilized to execute a keyboard symbol correspondence program and generate the corresponding relation setting between the respective keyboard symbol and the combined key signal as redefined by the user, and then store settings into a keyboard symbol correspondence setting data base. The user may input the data according to the keyboard symbol correspondence relations s/he is used to the next time s/he executes the keyboard symbol correspondence program.

Abstract: A keypad optimization method for handheld devices with optimal multi-language entry capability and handiness for both handheld and fingertip manipulation receives application requirements containing language specification and performs application mapping using the application requirements to generate versatile keypad map output. A versatile keypad is implemented using versatile keypad map wherein the versatile keypad receives user input and generates received data output. An interactive optimization is performed using the received data having online action output. The online action is used to generate keypad output and screen display by the versatile keypad. An application mapping method receives application requirements containing language specification and performs language entry order grouping using the language specification to generate entry order groups and valid combination output.

Abstract: A keyboard has a middle region that has upward longitudinal slopes rising to upper planes on both sides of the middle region. An alphanumeric section disposed in the keyboard housing generally in the middle region. The keyboard includes a first wing section and the second wing section in which each can be disposed at height of the keyboard housing at the upper plane. In one aspect, the alphanumeric section may be disposed below the height of the first and second wing section, and the alphanumeric section is laterally disposed between the first medial section and the second media section.

Abstract: The present invention relates to a switch, and a signal generating switch device which can provide continuous real-time response. The problem to be resolved is to provide a method in order to realize a switch device which permits the pole is in a dynamic state in which the pole can change the interval and direction relative to the throw before ad after it contacts the throw during the continuous operation period. The manufacturing method is as follows: firstly, several throws are uniformly provided on an inner concave of a throw carrier in a plate shape and ensured to be on the same circumference. Second, a pole in a pin shape is fixed on the top of a pole carrier in a cap shape which can cover the top part of a finger and ensured to be vertical to the top face of the cap. Finally, the wires with required length are made corresponding to the number of the pole and the throws.

Abstract: A foldable keyboard for inputting data into a portable electronic device is provided. The foldable keyboard includes an upper cover, a lower cover, a first keyboard portion, and a second keyboard portion. A space is formed, as the upper and the lower cover are in closed relationship to each other, for accommodating the first and second keyboard portions. As the upper and lower covers are opened from the closed relationship and the second keyboard portion, relative to the first keyboard portion, is rotated pivotally, said first and second keyboard portions are allowed to be substantially on a common plane.

Abstract: A mobile device is provided having a rotatable keyboard. The keyboard is attached to the mobile device and is rotatable in a single plane with respect to the device's housing between a first and second position. A plurality of keys are provided having first indicia in a first orientation relating to key functions in the first position and second indicia in a second orientation relating to key functions in the second position. The indicia are properly oriented with respect to the user in the first and second positions to display a telephone keypad and an alternate keyboard. The arrangement provides greater ergonomic comfort to a user when entering text. The mobile device can assign functions to each key based on a determined keyboard position and can include a weighted end piece to protect the rotatable keyboard from potential damage due to impact.

Abstract: Disclosed is a system that provides visual feedback to a user indicating which input components (e.g., keys, buttons, dials, etc.) of an input device (e.g., a keyboard, a keypad, a control panel, etc.) are currently being touched in order to avoid engaging the wrong input component. The system comprises a processor connected to both a touch-sensitive input device having a plurality of input components and a display. The touch-sensitive input device is adapted to detect when contact is made with any of the input components. The processor provides an image on the display that dynamically illustrates the input components that are currently being touched. The processor can further be adapted to allow the user to adjust size and/or location of the image on the display. Lastly, the processor can further be adapted to incorporate the image into an instructional application to be used as a teaching tool.

Abstract: The present invention discloses a cordless electromagnetic induction system, which comprises a cordless pen and a tablet, connecting to a host. In this regards, the cordless pen comprises a battery for supplying power to the pen, a RF (radio frequency)oscillator circuit for generating radio frequency signal, representing the location and status of the pen at a central frequency, and a battery voltage detection apparatus for detecting the output voltage of the battery. The battery voltage detection apparatus commands the RF oscillator circuit for generating a signal, which central frequency is at a warning frequency, while the output voltage of the battery is lower than a critical value. The tablet comprises a tablet RF receiver for receiving RF signal from the RF oscillator circuit. The tablet informed the host for raising a low battery power warning to user while the tablet RF receiver received a signal, which central frequency is at the warning frequency.

Abstract: In a gesture detection method for a touchpad, according to the present invention, various gestures such as tap, drag and double tap are determined by operating an object to touch on the touchpad, leave from the touchpad, and move on the touchpad.

Abstract: A computer system includes a touch pen; a sensor for detecting whether the touch pen is at a predetermined position; and a controller electrically connected to the sensor for controlling an operation of a predetermined procedure according to a detecting result of the sensor in the predetermined procedure.

Abstract: An apparatus and a method for controllably reducing power and heat dissipated by OLED display circuitry are disclosed. Image dependent drive voltage adjustments are made to reduce the power generated by and the heat dissipated by the OLED pixel circuitry. That extends the life span of the components of the OLED pixel circuitry and maintains their quality by reducing or eliminating the degradation caused by heat. The apparatus and the method of the present invention selectively reduce the voltage level provided to the drain of the transistor used to drive the OLED. The drive transistor's drain voltage level is controllably lowered during display intervals that require less than the brightest level of illumination.

Abstract: A computer as an input adjustment apparatus includes a memory. This memory stores an input adjustment program. The computer is connected with a touch pad. When a user touches the touch pad with his/her finger, the computer is provided with touch coordinate data on a touched portion and a value according to an area of the touched portion. Based on the coordinate data and the value according to the touch area, the computer calculates a scale factor of a range in which the user can actually perform an operation in such a manner as to conform to a whole operating range of the touch pad. Then, the computer multiplies by the scale factor a difference of coordinates indicated by the coordinate data (current touch coordinates) from a reference position, and input the resulting value as input data into an electronic device.

Abstract: A capacitive position sensor for determining the position of an object along first and second directions is described. The sensor comprises a substrate having an arrangement of electrodes mounted on a single surface thereof. The electrodes are arranged so as to define an array of sensing cells arranged in columns and rows to form a sensing area. Each of the sensing cell including a column sensing electrode and a row sensing electrode with the column sensing electrodes of sensing cells in the same column being electrically coupled together and the row sensing electrodes of sensing cells in the same row also being electrically coupled together.

Abstract: A method and medium for variably arranging a content menu and a display device using the same are disclosed. The method for variably arranging a content menu includes a) detecting position information of a user's finger touched with a touch screen, b) setting an attention area in accordance with the detected position information, and c) arranging menu icons in accordance with the set attention area. The display device includes a position information detection unit for detecting position information of a user's finger touched with a touch screen, an area setting unit for setting an attention area in accordance with the position information detected by the position information detection unit, and a menu control unit for arranging menu icons in the attention area set by the area setting unit. Since the menu icons are arranged in the area near the user's finger by sensing the position of the user's finger touched with the touch screen, the menus can be manipulated efficiently and variably.

Abstract: A training system has a stylus. An electronic tablet detects a position of the stylus when the stylus is near a surface of the electronic tablet. A process defines a tolerance band on the electronic tablet.

Abstract: A bi-directional communication system comprising a base apparatus and a display apparatus. The display apparatus is a portable liquid crystal display for viewing video programs and browsing the internet. The base apparatus contains a television tuner for receiving broadcast signals and wirelessly transmits programming to the display apparatus. An infrared remote control device connected to the base apparatus is used to control various external input devices (e.g., a VCR or DVD player). Control menus for the base apparatus and the external input device can be displayed on the display apparatus. The display apparatus contains a touch screen, so that a user can select operational commands for controlling the base apparatus and external input devices. The display apparatus wirelessly transmits selected operational commands to the base apparatus, which then retransmits the commands to the appropriate external input device using the infrared remote control device.

Abstract: A projection surface on which a predetermined projection image is projected is provided; a writing surface on which an image can be drawn directly in a superimposing manner with a projection image displayed on the projection surface is provided; and a photography part photographing an image drawn on the writing surface by means of an image-pickup part comprising two-dimensionally-disposed pixels is provided.

Abstract: A digital pen (1) contains an identity tag reader (3, 4) for identifying places, individuals or items to each of which a written data record relates. Each place or individual is marked with an identity tag (20, 36) whose identity and location are recorded in a database. The digital pen reads the tag and stores and uploads its identity in association with the penstroke data record, providing a verifiable indication that the data record was created at the tag location. The data record may require to be written within a defined time period after reading the tag. The database may be used to produce forms (22, 30) on digital paper for use with the pen in creating hospital, maintenance and inspection and other records.

Abstract: A multiple function radio bezel interface includes a display screen, a first knob assembly including an outer ring and an inner knob, the outer ring adapted to allow a user to select an application from a multimedia main menu and the inner knob adapted to allow a user to selectively power the radio bezel interface and to adjust the volume of the radio, and a second knob assembly including an outer ring and an inner knob, the outer ring adapted to allow a user to select different application screens corresponding to the application selected from the multimedia main menu and the inner knob being a jog controller.