Abstract: A data latch circuit of a liquid crystal display device digital input data is converted into data of a power supply voltage level by comparing it with a comparison reference voltage in a comparator section having a PMOS differential amplifier circuit in a sampling period of a sampling pulse signal. The converted data is latched by a first data latch section in a non-sampling period of the sampling pulse signal. The latched data is held for a 1H period by a second data latch section.

Abstract: A mouse includes: an upper case, a lower case, and a rotary member housed in the lower case. Operating levers are provided at a side portion of the upper case and each has a push member integrally formed at lower surface the operating lever such that at the bottom side thereof a first contact portion and a second contact portion are formed laterally to have a stepwise shape and movable in the vertical and horizontal directions. The lower case has an aperture formed in a central portion thereof and a circumference wall in which an elongated guide hole is formed. The rotary member has a ring shape plate rotatably supported around the aperture of the lower case and provided with a mouse movement detector. A pushbutton switch is mounted in a bottom portion of the lower case. The operating portion of the pushbutton switch is operated by the first and second contact portions of the push member.

Abstract: The present invention features methods and apparatus for the correction of spatial non-uniformities in brightness that arise from materials, manufacturing, operational and lighting parameter variations in electronic color, flat-panel displays. The methods apply both to gradual non-uniformities usually found in monolithic displays as well as to abrupt variations present in displays composed of a multitude of tiles. Corrections are performed on the electronic drive signals used to control the brightness of selected display pixels. Parameters required for these corrections are acquired via brightness measurements over selected pixels and stored after suitable transformations. The stored parameters are then used to scale and/or interpolate drive signals in real time. Corrections are performed such that any remaining gradual and abrupt brightness non-uniformities fall below the detectable threshold under the intended viewing conditions.

Abstract: An optical display system and method selectively displaces delta triad pixels vertically. The first raster line of picture information is removed from the video signal, and each subsequent raster line of picture information (data) is displaced upward. Next, the entire picture is optically displaced down by a distance equal to one vertical pixel pitch placing the picture back in its original vertical position, but horizontal position of the pixels has changed. Thus picture information is displaced horizontally a distance equal to one and one half times horizontal pixel pitch. Odd pixel rows are displaced in one direction, and even pixel rows are displaced in the opposite direction. The technique can be used to double pixel density and, thus, resolution, in the horizontal direction by the selective shifting technique and coordination with the input video signals.

Abstract: A liquid crystal display has a liquid crystal layer, first and second electrodes, and a third electrode. The liquid crystal layer is inserted between the first and second electrodes to define liquid crystal cells. The third electrode is capacitively coupled with one of the first and second electrodes. A correction voltage for correcting distortion of a waveform for driving one of the first and second electrodes is applied to the third electrode, to keep an effective voltage applied to the liquid crystal cells unchanged and improve the display quality of the liquid crystal display. Therefore, the liquid crystal display of the present invention can correct distortion of a common voltage and prevent crosstalk.

Abstract: A light emitting diode display device includes a variable color display area, for exhibiting a selective display unit, substantially surrounded by a variable color background area. The light emitting diodes in the display area are commonly coupled to a plurality of display buses, in accordance with their display colors. Similarly, the light emitting diodes in the background area are commonly coupled to a plurality of background buses, in accordance with their background colors. A display color control is provided for selectively activating the display buses, for illuminating a desired display unit in a selective color. A background color control is further provided for activating the background buses, for illuminating the background area in a uniform color different from the color of the display area.

Abstract: It is an object of the invention to provide an image forming apparatus capable of easily obtaining a white balance and performing image display with excellent color reproduction properties, and a method of manufacturing and adjusting the image forming apparatus. A plurality of surface conduction electron-emitting devices (1002) are arranged on a substrate (1001). Light emission is performed in accordance with the colors (R, G, and B) of phosphors applied to a phosphor film (1008) upon electron emission from the devices, so that an image is formed. The electron-emitting characteristics of the surface conduction electron-emitting devices (1002) are shifted in advance in correspondence with corresponding phosphor colors. Therefore, a satisfactory white balance of light emission of the R, G, and B phosphors can be obtained.

Abstract: A method and apparatus for implementing a graphical user interface keyboard (10) and a text buffer (12) on an electronic device. A character that is active upon pointer-up is accepted as a text character, even though the character that is active upon pointer-up is different from a character that was active and inserted in the text buffer (12) upon pointer-down.

Abstract: A liquid crystal panel includes bypass capacitors for removing a noise and a ripple from signals applied thereto. The liquid crystal panel is provided with a liquid crystal cell matrix having thin film transistors and liquid crystal cells arranged in a matrix pattern and located between the first and second glass substrates, and signal lines arranged on any one of the first and second glass substrates to receive signals from an exterior thereof. The bypass capacitors are formed and located in the lower portion of the signal lines and so as to be electrically connected to the signal lines. The bypass capacitors remove noise components included in the signals to be transferred through the signal lines.

Abstract: A method of driving a picture display device having an N number (N is an integer of not less than 2) of scanning electrodes and a plurality of data electrodes and being capable of optically responding to an effective value of a voltage applied to a pixel, which includes dividing the scanning electrodes into an M number of subgroups each having L rows, and applying voltages based on signals formed by expanding time-sequentially column vectors of an orthogonal matrix (A) having L rows to the scanning electrodes in each of the subgroups in order to select each of the subgroups together, changing, every time when a selection pulse is applied, the subgroups to which the selection pulse is applied, wherein L is 8 or less and N is 200 or more; the polarities of scanning voltages and data voltages are inverted with a periodicity of S times (S is a natural number) of a selection pulse width, and S is so determined that when an integer portion in the quotient of M/S is an even number, a remainder b satisfies S/b<12,

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The electro-optic layer comprises a polymer dispersed liquid crystal material. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage.

Abstract: An image display system capable of viewing an electronic image and an external sight simultaneously, or selectively is disclosed.

Abstract: A self-contained pen computer which is capable of collecting and recording data representative of handwritten strokes of the pen, and displaying such data in a display screen which is a part of the pen. In the housing of the pen, a pressure sensor is included at the tip of the pen, and a motion sensor which outputs signals describing the motion of the pen, so that handwritten data can be acquired without the need for a special writing surface. These sensors are connected to a signal processing circuit which includes an analog-to-digital converter to convert motion signals and pressure sensor signals into digital code. A microprocessor or microcontroller interprets the digitized motion data, stores the processed data in a memory such as a chip storage device, directs such data to a built-in display such as an LCD, which can display images in real-time corresponding to the processed motion signals, as well as images stored in memory.

Abstract: A system for manipulating a computer generated animation in real time that includes a head mount configured to inhibit relative movement between the head mount and head of a wearer is provided. The head mount is coupled to a computer that processes data generated by the head mount in real time. Data generated by the facial movements of a wearer of the head mount is processed in real time so that an object, such as a cartoon in a virtual reality program, has facial expressions analogous to the facial expressions of the wearer, as the wearer is performing. A plurality of cameras monitor different localized regions of the wearer's face for sensing movements in these regions to generate data indicating movement. The cameras are attached to the head mount with flexible arms for precise positioning of the cameras. The cameras monitor each of the mouth, chin and cheek, and an eyebrow and forehead regions of the wearer's face and one of the wearer's eyes.

Abstract: At least one pixel conversion table is provided for converting pixels between different color depths. Each pixel conversion table comprises a plurality of conversion entries mapping colors of one color depth to colors of another color depth. An application accesses the provided at least one pixel conversion table to effectuate any necessary conversion during operation.

Abstract: Apparatus is provided to extend the number of active degrees of freedom of haptic interface to provide the user with the feel of a tool which is cantilevered over obstacles or which experiences frictional drag along its shaft. This is accomplished by providing two additional active degrees of freedom while not limiting the rotation or translation of the handle that the user is grasping. The apparatus constrains, through a 4 degree of freedom gimbal, the shaft of the tool handle, whose tip is controlled by another 3 spatial degree of freedom haptic device. The shaft of the tool slides and rotates in a sleeve bearing or collar which is mounted in a 2 degree of freedom gimbal. The gimbal is rigidly connected to a 2 degree of freedom parallel planar manipulator, with both degrees of freedom of the planar manipulator being powered by actuators used to generate the requisite haptic forces.

Abstract: Disclosed is an image display apparatus for dither halftoning a video signal that enters from an external unit and displaying the resulting video signal on a display unit. A dither table, which comprises an array of dither threshold values used by a dither halftoning circuit, is changed based upon the capability of the display unit to display halftone display colors and/or data relating to the number of display colors contained in the video signal. In order to select threshold values, an output value of the dither halftoning circuit, which is at an identical display position in the immediately preceding frame of the video signals is referenced.

Abstract: The present invention is a color correction system including an imaging apparatus which inputs or outputs an image signal from a signal processor into or from an image device such as an input device such as a scanner or a camera or an output device such as a display device or a print device and which is constituted so as to correct colors by inputting or outputting image signals via a color converter, the conversion characteristic of which can be controlled according to a variation in the setting status or use environment of the imaging apparatus and faithful color reproduction can be realized between a plurality of imaging apparatuses having different characteristics.

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage. Various other apparatuses and methods are described.

Abstract: When a large number of bar-shaped display elements are installed at a site in any of various situations, even if the distances between the bar-shaped display elements are not necessarily fixed, an image of an aspect ratio which is correct over an entire screen can be displayed without distorting the displayed image. Data distribution means includes means for storing a standard value set corresponding to a standard arrangement distance of the bar-shaped display elements Bi as an interval control variable, and means for storing a correction value set for a particular bar-shaped display element B8 arranged in a displaced condition from the standard arrangement distance, and selectively extracts image data for one column to be distributed to each of the bar-shaped display elements B1 to B10 based on the standard value and the correction value.