Abstract: A haptic device for human/computer interface includes a user interface tool coupled via cables to first, second, third, and fourth cable control units, each positioned at a vertex of a tetrahedron. Each of the cable control units includes a spool and an encoder configured to provide a signal corresponding to rotation of the respective spool. The cables are wound onto the spool of a respective one of the cable control units. The encoders provide signals corresponding to rotation of the respective spools to track the length of each cable. As the cables wind onto the spools, variations in spool diameter are compensated for. The absolute length of each cable is determined during initialization by retracting each cable In turn to a zero length position. A sensor array coupled to the tool detects rotation around one or more axes.

Abstract: Compensate for the variations of threshold voltage of a driving transistor. During the period of the reference signal voltage Vref being set to the signal line DTC, voltage between the gate and source of the driving transistor 10C is made equal to or greater than the threshold voltage of the driving transistor 10C, and the difference in voltage of the reference signal voltage Vref and the reference power supply voltage Vref_r is charged to the retentive capacitance 10B. At the same time, the voltage of the source of the said driving transistor 10C is set to the reference power supply voltage Vref_r to make the voltage applied to the light emitting element 10E equal to or lower than its threshold voltage, a voltage corresponding to the threshold voltage of the driving transistor 10C is held in the retentive capacitance 10B.

Abstract: According to various embodiments of the invention, gamma curves for multiple pixel groups can be calibrated using look-up tables or by using reference voltage groups provided by gamma voltage generators so that the pixels can display multiple images with correct gray levels at different view angles. Therefore, color shift can be avoided or lessened without necessarily using extra circuitry on the display panel. Also, any related light transmittance or light utilization efficiency reduction may be decreased or eliminated.

Abstract: In view of existing mobile devices which have the limitation of relatively small area of the touch screen, the present invention describes a virtual touch sensing method based on computer vision technology. The method includes the steps of using more than one sensor to detect the coordinates of an indicator in a virtual touching area, and calculating the respective screen coordinates according to the coordinates of the indicator, where the area of the operation surface of the virtual touching area is independent to the area of the screen. The present invention also disclosed a corresponding virtual touch sensing system which provides a predictive control interface, where the area of the control interface is independent to the area of the actual screen.

Abstract: A pen-like optical input device includes a body. A light source, a light sensing unit and a lens are disposed in the body, a light ray is emitted by the light source to the outside of the body, and a reflected light ray is generated outside the body. The reflected light ray then is received by the light sensing unit after being refracted by the lens, in which the light sensing unit has a light receiving surface, and a normal of the light receiving surface inclines to an optical axis of the lens, thereby forming an angle with the optical axis.

Abstract: A display device in which the current load of wirings are distributed and display variations due to voltage drop are suppressed. An active matrix display device of the invention comprises a first current input terminal, a second current input terminal, and a plurality of current supply lines extending parallel to each other. Each current supply line is connected to a plurality of driving transistors in a line. One end of each current supply line is connected to the first current input terminal via a first wiring intersecting with the current supply lines, and the other end thereof is connected to the second current input terminal via a second wiring intersecting with the current supply lines. Accordingly, a current is supplied to each current supply line from both the first and. the second current input terminals. The first and the second current input terminals are provided separately from each other.

Abstract: Systems and methods for piezo-based haptic feedback are disclosed. For example, one described apparatus for piezo-based haptic feedback includes a polymer matrix, and a piezoelectric actuator at least partially embedded within the polymer matrix, the piezoelectric actuator configured to output a haptic effect.

Abstract: A 2D/3D switchable backlight unit and an image display device employing the same are provided. The 2D/3D switchable backlight unit includes a light source, a light guide plate in which light emitted from the light source is total-internal-reflected, and a switch array comprising a plurality of switches that selectively contact a first surface of the light guide plate and emit light by frustrated total internal reflection inside the light guide plate. In 2D mode, each of the switches contacts the first surface of the light guide plate. In 3D mode, some of the switches contact the first surface of the light guide plate.

Abstract: A pixel circuit includes: a switching transistor whose conduction is controlled by a drive signal supplied to the control terminal; a drive wiring adapted to propagate the drive signal; and a data wiring adapted to propagate a data signal. The drive wiring is formed on a first wiring layer and connected to the control terminal of the switching transistor. The data wiring is formed on a second wiring layer and connected to a first terminal of the switching transistor. A multi-layered wiring structure is used so that the second wiring layer is formed on a layer different from that on which the first wiring layer is formed.

Abstract: A liquid crystal display includes an array of pixels. Each pixel is divided into a first sub-pixel and a second sub-pixel, and different data voltages are separately applied to (or evolved at) the two sub-pixels, thereby enhancing the lateral side visibility. Each sub-pixel includes a sub-pixel electrode (connected to the drain electrode of a sub-pixel's switching element) overlapped with the sub-pixel's storage electrode. A first predetermined voltage is applied to the first sub-pixel and second predetermined voltage is applied the second sub-pixel, and thus the first sub-pixel electrode may receive a voltage lower than the voltage of the second sub-pixel electrode. The first sub-pixel electrode may be larger in area than the second sub-pixel electrode. The overlapping area between the first drain electrode and the storage electrode of a first sub-pixel may be larger than the overlapping area between the drain electrode and the storage electrode of a second sub-pixel.

Abstract: An apparatus allows entry of an individual into an area. An access structure (14) controls entry to and exit from a facility. The condition of at least one lock (26, 30, 48, 52) associated with the structure is changed responsive to correspondence of user data and stored data. An operator terminal (12) provides through a display (72), visible outputs associated with the structure. The operator terminal is usable to control functional aspects of the structure. The operator terminal is also usable to receive indications of conditions associated with components that control entry to and exit from the structure.

Abstract: An optical device suitable for forming a pixel in a video display. The optical device includes a first layer having a first refractive index; a second layer over the first layer, the second layer having a second refractive index less than the first refractive index; and a third layer over the second layer, the third layer having a third refractive index larger than the second refractive index; and a fourth layer that is at least partially optically absorptive, wherein the optical stack and the fourth layer are a first distance from one another when the device is in a first state and are a second distance from one another when the device is in a second state, the first distance different from the second distance.

Abstract: A mobile, multi-room display environment. The display environment has a first room, the first room having a first set of sensory cues, and a second room, the second room having a second set of sensory cues substantially different from the first set of sensory cues. The first and second rooms are designed for temporary use and can be easily disassembled for transport from one location to another.

Abstract: A method includes identifying a position of a user's touch on a touch screen, a velocity of the user's touch across the touch screen, and a pressure of the user's touch on the touch screen. The method also includes generating at least one drive signal for driving one or more actuators associated with the touch screen and outputting the at least one drive signal. The at least one drive signal is configured to cause the one or more actuators to generate a desired haptic texture on the touch screen. The at least one drive signal is based on the position, the velocity, and the pressure. For example, a waveform of the at least one drive signal could be based on the position. Also, groups of pulses in the at least one drive signal could have a frequency and waveform based on the velocity or an amplitude based on the pressure.

Abstract: A method and apparatus for identifying user gestures to control an interactive display identifies gestures based on a bounding box enclosing points at which a user contacts a touch sensor corresponding with the display surface and permits use of inexpensive and highly reliable grid-based touch sensors that provide a bounding box to describe contact information. In identifying gestures, position, motion, shape, and deformation of the bounding box may be considered. Center, width, height, aspect ratio, length and orientation of the bounding box diagonal may be determined. A stretch factor, defined as the maximum of the ratio of the height of the bounding box to the width of the bounding box and the ratio of the width of the bounding box to the height of the bounding box, may also be computed. Gestures may be identified based on the changes in time of these characteristics and quantities.

Abstract: The present invention discloses a method for and a system for reducing the dynamic false contour in the image of an alternating current plasma display. The method includes the following steps: dividing each frame image into multiple subfields; accounting the number and the probability of the dynamic false contour appeared in each frame image; based on the result of the accounting, carrying out an optimized coding for the pixel data of each frame image, and if there is an error generated by the optimized coding, diffusing the error generated by the optimized coding into neighboring pixels.

Abstract: A method and apparatus for identifying user gestures to control an interactive display identifies gestures based on a bounding box enclosing points at which a user contacts a touch sensor corresponding with the display surface and permits use of inexpensive and highly reliable grid-based touch sensors that provide a bounding box to describe contact information. In identifying gestures, position, motion, shape, and deformation of the bounding box may be considered. Center, width, height, aspect ratio, length and orientation of the bounding box diagonal may be determined. A stretch factor, defined as the maximum of the ratio of the height of the bounding box to the width of the bounding box and the ratio of the width of the bounding box to the height of the bounding box, may also be computed. Gestures may be identified based on the changes in time of these characteristics and quantities.

Abstract: Systems, products, and methods are disclosed for facilitating a method of mapping a numerical keypad to keys of a keyboard on a mobile communications device based on an initial selection of an edge key. One embodiment of the method includes receiving input by way of a given key of the keypad and then dynamically configuring that given key to be a numerical key of a numerical keypad. In particular, input received by way of the numerical key is interpreted as a corresponding numeral regardless of a prior configuration associated with the numerical key. Further, keys of a keyboard within a proximity of the numerical key are mapped to remaining numerical keys of the numerical keypad.

Abstract: A display panel includes a face plate having a transparent substrate, a plurality of phosphor layers disposed on the transparent substrate for emitting different color lights, and a plurality of transmittance adjustment layers interposed between the transparent substrate and the plurality of phosphor layers. Each transmittance adjustment layer corresponds to each phosphor layer for adjusting the transmittances of the lights emitted from the plurality of phosphor layers, and the transmittance adjustment layers have a filtering function with an approximately constant transmittance in the visible light wavelength region. In addition, a rear plate has a plurality of display elements each corresponding to each phosphor layer, wherein the face plate and the rear plate are disposed so that the phosphor layers formed on the face plate are opposite to the display elements formed on the rear plate.

Abstract: Method and apparatus provide for attaching a planar electroluminescent lamp unit to the side of a billboard, and providing a media adhered to the surface of the lamp unit and to the side of the billboard adjacent the lamp unit, wherein the media has advertising indicia printed thereon. The lamp unit is connected to a source of power on the billboard.