Abstract: A user input device includes one or more user controls that enable a user to selectively imports bits of data by activating the control when the user input devices proximate to a display surface of an interactive display system. By depressing or otherwise activating a user control, the user causes an element within the user input device to move through a plane of change so that the state of a parameter sensed by the interactive display system changes and is detected. In the examples provided, the parameter relates to infrared light that is reflected or absorbed or produced by a component of the user input device and is thus detected by an infrared sensitive camera. The input can be a single bit, or comprise a plurality of bits corresponding to a specific pattern.

Abstract: A shift register unit capable of generating two output pulses in turn. In the shift register unit, a first unit receives a start pulse and a clock signal to output a first output pulse during a first period. A second unit receives the first output pulse and an inverse signal of the clock signal to output a second output pulse during a second period.

Abstract: A driver arrangement for a display includes at least one driver, such as a column driver, and a delay line arrangement coupled to the driver. The delay line arrangement delays a data signal provided to the driver by a delay period selectable from a plurality of possible delay periods. The delay line arrangement includes a calibration module that, when requested, is configured and arranged to adjust a current delay period produced by the delay line arrangement towards a predetermined delay period. Displays can include the driver arrangement to provide self-calibration of the delay line.

Abstract: A device for driving a display apparatus includes a scan driver, a timing circuit and a data driver. The scan driver generates a plurality of scan signals activating the scan lines. The timing circuit generates a control signal. The data driver samples a first gray scale voltage signal in response to the control signal, and generates a second gray scale voltage signal to provide a display panel of the display apparatus with the second gray scale voltage signal. The second gray scale voltage signal has a sampled voltage level of the first gray scale voltage signal, and the sampled voltage level is synchronized with the control signal. The deterioration of the display quality due to ripples may be reduced.

Abstract: A sign structure having a display, movable member and computer means creates a unique vehicle for displaying content. In one version, the movable member is adjacent to the display and substantially shields a portion of the display as it traverses thereover. Coordinated content transmitted to the display gives the appearance that the movable member is influencing the displayed content. For example, as the member moves upward an image below the member stretches in size while an image above the member compresses in size until the upper image disappears and the lower image occupies the entire visible portion of the display. This continues as the member traverses up and down over the display. The member may appear to manipulate the images by stretching, compressing, pushing, pulling and/or erasing them.

Abstract: An interactive display device employing a flat panel display (FPD). The interactive display device includes a housing, a flat panel display, a light diffusing layer, a visible light illumination system, and a non-visible light illumination system that is used for detecting objects adjacent to the FPD. Techniques are also described for providing uniform illumination of the FPD with visible light, when viewed from a plurality of viewing angles by a user, and for diffusing the visible illumination at a surface boundary of the FPD, such that a coherent image of an interior of the housing is at least partially obscured from view by the user. Non-visible light that has passed through the FPD is reflected from objects adjacent to the display, passes back through the FPD, and is detected within the housing.

Abstract: A capacitive sensor for detecting the presence of an object adjacent a panel is described. The sensor comprises an electrically conducting sensor element coupled to a capacitance measurement circuit. In use, the capacitive sensor is mounted with the sensor element adjacent an underside of the panel. The sensor element includes a flared portion which deforms when pressed against the panel to provide an extended contact area between the sensor element and the panel. When a user touches an upper side of the panel above the extended contact area, the capacitance of the sensor element is modified. This is detected by the measurement circuit and identifies a touch.

Abstract: A simultaneous precharge type display device source driver includes supply control circuits each of which is provided on each of source bus lines. Each of the supply control circuits receives (a) a precharge control signal for precharging each of the source bus line and (b) a sampling control signal for writing data, which should be written on pixels, onto the source bus line. The one of two switches turns ON in response to the precharge control signal and the sampling control signal. The other of the switches turns ON in response to the sampling control signal. In the sampling operation, both the switches are turned ON so as to quicken the writing operation. In the precharge operation, the other switch does not operate, so that it is possible to reduce the power consumption.

Abstract: A plasma display device, which is capable of improving a discharge efficiency of a plasma display panel by increasing a partial pressure of Xe. When the partial pressure of Xe is increased, a proportion of (Xe—Xe)* dimer emitting a 147 resonance line is higher than that of Xe* monomer emitting a 173 nm molecular beam. Particularly, when the partial pressure of Xe is above 10%, the discharge efficiency is improved by setting a frequency of a sustain discharge pulse applied to scan electrodes and sustain electrodes alternately during sustain period above 300 kHz.

Abstract: Map data are managed by use of map file names representing given areas. In each map file name, the first character denotes a map structure code; the second character represents a zoom level for a zoom-in or zoom-out operation of the map on display; and the third through the fifth character stand for an X-direction unit code and the sixth through the eighth character for a Y-direction unit code, indicating where the map in question is located on the same zoom level. The eight-byte file name plus a three-byte extension constitutes each map file name. Furthermore, map data are managed by use of floor file names representing floors in buildings.