Abstract: A method for driving a matrix liquid crystal display device for displaying characters or a pattern is provided. A common voltage waveform is applied to at least one of a plurality of common electrodes at both ends of the common electrodes. A segment voltage waveform is applied to the segment electrodes. At least one of the segment voltage waveform and the common voltage waveform is varied to produce a display and remove non-uniformities on a liquid crystal display panel.

Abstract: A light pen system in accordance with the present invention comprises (a) detecting means for detecting horizontal and vertical sync signals for controlling a raster-scan display; (b) line counter means, coupled to the detecting means and responsive to the horizontal sync signals, for providing a line count corresponding to the vertical position of the beam; and (c) pixel counter means, coupled to the detecting means, for providing a pixel count corresponding to the horizontal position of the beam.

Abstract: A color display device comprises a blue color emitting light source consisting of a blue color emitting fluorescent lamp or a white color emitting fluorescent lamp attached with a blue color filter, and a liquid crystal panel for controlling the transmission of the blue color light for every pixel, wherein one end of every optical fiber provided for every pixel is fixed to a position on a fiber board where every blue color signal for every pixel passing through said liquid crystal panel can be incident, and the other end thereof is fixed to a corresponding position on a printed board on which a red color emitting LED and a green color emitting LED are mounted for every pixel, to have a full-color display by controlling the drive of said red color emitting LED, green color emitting LED and liquid crystal panel.

Abstract: A trackball system is provided wherein a roller ball is received and supported within a ball retaining assembly. A vertical height of the ball is adjusted relative to the housing by adjusting a vertical height of the ball assembly relative to the housing. By changing vertical height of the ball relative to a top surface of the housing having an aperture through which the ball protrudes, a selectable portion of the ball will protrude through the aperture. Thus, an operator may make height adjustments of the ball relative to the top housing surface to suit his individual preference.

Abstract: Smooth scrolling of a document on an all points addressable system which provides fast response and scrolling in increments of a single display row, while being storage efficient. The document is completely stored in compact format and a portion of the document which encompasses the current display window is stored in bitmap image format. There is smooth scrolling between displays completely within the bitmap image. The scroll is only interrupted for a scroll outside the portion of the document in bitmap image format, in which case the bitmap image is adjusted using the compact format to include that portion of the document with the desired display.

Abstract: A light guide type display apparatus having a plurality of optical fibers which couple a light shutter which serves as an image forming device to a display screen. The plurality of optical fibers are effectively interlaced with each other so as to substantially eliminate any boundaries which appear on the display screen. The plurality of optical fibers are segregated into bundles which correspond to at least one trio of blue, green and red picture elements.

Abstract: In an image information processing apparatus including a combined display and input unit, which includes a coordinate specifying unit for specifying on a screen a rectangular area containing an image and also specifiying the destination to which it is to be moved, a mode specifying unit for specifying a move mode for the rectangular area to be a paralleling mode or a rotating mode, and a position specifying unit for enabling the specification of the destination, an image paralleling and rotating system is disclosed, when the rectangular area specified by the coordinate specifying unit is displaying in the screen as moved to the destination, enabled by the position specifying unit, in accordance with instructions made by the mode specifying unit, a decision is made to determine if the coordinate specifying unit has specified a predetermined neighboring portion of a corner of the rectangular area so displayed.

Abstract: An electronic display includes a matrix of LEDs mounted to a circuit board and selectively operated to produce a message or image. A reflector matrix mounts to the circuit board and provides light pipes which extend forward from each LED to direct its light and provide protection. Potting compound is disposed in each light pipe and extends beyond the reflector matrix to provide a convex lens. In one embodiment the potting compound extends into a convex lens cover.

Abstract: A text mode color selection system for a monitor which permits the selection of the color tone of the text mode voluntarily in accordance with the preference of a user also the color tone can be changed to another one when a user feels dissatisfied at a color of text mode comprised of a video memory, buffer, video output section, reset section, counter, NOR gate, inverters, NAND gates, diodes, resistors, and light emitting diodes, so that the color of the text mode is changed into three different colors such as amber, green, and white on blue in accordance with the number of operations of a text mode selection switch.

Abstract: An active matrix LCD light valve between crossed polarizers, utilizing individual transistors to control each "pixel area" of the LCD and storage elements to store signal data for each pixel, with optically shielded "dead spaces" between pixels to eliminate electric field crosstalk and non-information-bearing light bleed through, is illuminated with a bright independent light source which creates a video image projected via specialized projection optics onto an internal or external screen without distortions, regardless of the angle of projection onto the screen. Use of heat sinks, IR reflective coatings, heat absorbing optics, optional fluid, and a thermistor controlled pixel transistor bias voltage injection servo circuit stabilizes image performance, maintaining accurate color and contrast levels as the LCD changes temperature.

Abstract: A touch panel having a panel body formed by transparent upper and lower electrodes spaced a predetermined distance. The touch panel is mounted on a front surface of a display device to detect a coordinate at a depressed position on the upper electrode. The improvement comprises a transparent insulating liquid material filled between the upper and lower electrodes and a coloring agent containing pigment or dyestuff dispersed in the liquid material. In another aspect, the improvement comprises a transparent insulating liquid material filled between the upper and lower electrodes and an insulating fine powder dispersed in the liquid material.

Abstract: A display circuit for driving two or more different displays includes a display memory for storing display data, an address signal generation circuit for generating address signals for the display memory, basic timing generation circuit for generating basic timing signals, an address control circuit for controlling a determination of the address of the display memory along the horizontal- and vertical-direction of the displays, and a switching circuit for switching the horizontal- and vertical-direction timing signals depending upon which one of the two or more display is selected, whereby the two or more displays are independently operated.

Abstract: A processing system is provided that includes an external device connected to a processor. The external device has the capability of responding to external device commands wherein each of these external device commands is performed within at least one fixed time cycle. The processor provides these external device commands and, further, includes the means for executing instructions that not only specify the external device commands but also specify at least one internal command to be performed by the processor simultaneously with the performance of the external device command and within the same fixed time cycle. In the disclosed embodiment, a graphics display system is provided that includes a system processor, a graphic processor, a graphics memory and a display device. The graphics processor receives instructions from the system processor which specifies commands to be executed by both the graphics processor and the graphics memory.

Abstract: A three-dimensional television system having a view chamber with electrode vibration plates disposed above and below the viewing chamber with a plurality of minute particles moving rapidly back and forth between the vibration plates and illumination of selected of the particles provided at a desired height in the viewing chamber at a pluarlity of positions within the viewing chamber to provide a three-dimensional image based upon an image-sensing device's output directed to control the point of illumination within the viewing chamber.

Abstract: A display system with a matrix type flat panel, for example a liquid crystal panel, has addressing circuits to obtain a television type interlaced image. These circuits are divided into several blocks, both for the addressing of even-numbered and odd-numbered columns and for the addressing of even-numbered and odd-numbered lines, in order to obtain a high-definition image. The graphic processor means used to prepare the video signals to be displayed comprise two sub-groups, one for each of the odd or even image. The two subgroups are respectively associated with two different data measuring devices giving the same essential information, to allow at least one display to be maintained even if one device malfunctions, each of them having at least one symbol generator associated with an image memory to produce a protected display of essential data for use.

Abstract: A control system comprises a liquid crystal display panel; a light source; and a light detector. Light from the source is directed through at least a portion of the liquid crystal display panel to the light detector. A control circuit is provided for holding the liquid crystal display in generally opaque condition while preferably sequentially momentarily clarifying segments of the portion, whereby momentary, sequential, transversely spaced light beams are generated between the light source and the light detector. A timer and logic circuit is provided for correlating signals received from the light detector with generated, individual, spaced light beams that create the signals. Accordingly, occlusion of at least one of the individual light beams with an opaque member causes a specific characteristic response by the timer and logic circuit.

Abstract: Apparatus for displaying a logic timing diagram on a raster scan type display device is disclosed. A logic signal is sampled and representations thereof stored in a RAM. The RAM contents are read repeatedly in synchronism with a raster scan operation, and the read-out signal is delayed by a predetermined time which is shorter than one bit cycle of the read-out signal. Logical gating functions, OR, exclusive-OR and NAND gates, receive the delayed and undelayed signals, and provide output signals from which the display of the "High" level, edges and "Low" level of the logic timing diagram are derived. Since it is not necessary to convert the logic signal to display codes and rewrite a display RAM, high speed scrolling and magnification can be obtained quickly and easily.