Abstract: The display driving device of the invention has a display driver for driving a display device by using image data to perform a display. The display driving device includes: a time-series data generating section for arranging division data obtained by dividing the image data in a time-series manner, to generate time-series data; and transmission lines provided between the time-series data generating section and the display driver through which the time-series data is transmitted from the time-series data generating section. When the display area of the display device is divided into a plurality of display areas, a plurality of display drivers are provided.
Abstract: A driving method of an active matrix LCD is provided. According to this method, a scan signal has three voltage levels, i.e., an ON voltage Vg, an OFF voltage Voff and a compensation voltage Ve having the opposite polarity with respect to the OFF voltage Voff. In contrast with the conventional capacitively coupled driving method in which the scan signal consists of four voltages, the driving method of this invention can reduce a cost and power consumption for a driver IC without degradation due to flickers or other causes. The method for adjusting the brightness of the LCD accompanying this driving method as well as the method for optimizing design parameters of the compensation voltage Ve and a thin film transistor of the LCD are also described.
Type:
Grant
Filed:
June 27, 1996
Date of Patent:
November 16, 1999
Assignee:
Matsushita Electric Industrial Co., Ltd.
Abstract: A scan converting method of converting image data from a raster sequence scan to a block sequence scan to divide the image data into blocks each having predetermined vertical width and lateral width and converting the image data from the block sequence scan to the raster sequence scan. One block buffer having a size in which a vertical width is set to the vertical width of the block and a lateral width is set to the horizontal width of the raster is used. Raster data by the raster sequence scan is written into the block buffer. The block data by the block sequence scan is read out. The block data is written and the raster data is read out. Upon conversion from the raster sequence scan to the block sequence scan, the block buffer is read out by the block sequence scan, the raster data is written into empty addresses which are caused by the reading, and the read address by the next block sequence scan is obtained by a predetermined arithmetic operation on the basis of the order of writing.
Abstract: An image display device incorporating a specialized phase expansion circuit, a rotation circuit, a sampling device and unique controlling circuitry. The phase expansion circuit includes a plurality of trail buffers or sample holder circuits for receiving a serially applied train of pixel image signals, expanding or extending the assertion cycle time and generating a corresponding plurality of expanded image signal trains in parallel. Preferably, one combination of expanded pixel image signals corresponding to specific position of pixels arranged in matrix in one train is different from another combination of expanded pixel image signals. The rotational circuit includes a plurality of selecting circuits for receiving the manifold trains of expanded pixel image signals generated by the phase expansion circuit.
Abstract: A cursor on a graphics display is controlled by a cursor control device including a tactile generator. The tactile generator is activated when the cursor is located at a graphics object that has been determined to be interesting, and that has a size which bears a predetermined relationship to the speed of the cursor, provided an update time has elapsed since the time of the last tactile activation of the cursor control device.
Type:
Grant
Filed:
December 31, 1996
Date of Patent:
October 26, 1999
Assignee:
International Business Machines Corporation
Inventors:
Ronald Jason Barber, Edwin Joseph Selker
Abstract: A LED matrix display having a variety of enhanced functionalities including: a scheduler which schedules tasks based upon commands correlated with real time; a tracking and accounting procedure which provides a database file which accounts for tasks as a function of the time a task is performed; sports display presentations of various sports information associated with different sports based upon corresponding sports IDs; the use of virtual display images or windows which may vary over time and which overlay template or faceplate images; and an improved error reporting capability in which detected errors are displayed using clear descriptive text information.
Abstract: A method and system for generating, inventorying, storing and managing records and record forms is disclosed. The record management system and method utilizes a system record generator which generates a plurality of policies, record forms and the like in response to a questionnaire record. Customized record forms and policies are generated and stored in a unique record receiver having indicia for clearly identifying forms therein. A record holder is also provided for storing, inventorying, and managing the record forms used. The method and system are particularly useful for managing and insuring that record forms are completed for employees in a company by providing convenient means for visually identifying record forms, such as employment applications and the like, for ascertaining when one or more forms is missing by the presence of an empty compartment in the record holder.
Abstract: A method of fabricating a liquid crystal panel comprises the steps of forming a black matrix on a substrate, forming a buffer layer on the substrate, forming semiconductors layer on the buffer layer, doping n.sup.+ impurities into a semiconductor layer on a pixel region on the substrate and in one semiconductor layer of the driver circuit region forming a gate insulating layer on the buffer layer and the semiconductor layer, forming a gate electrode on the gate electrode, introducing n.sup.- impurities into the semiconductor layer using the gate electrode as a mask after patterning of the gate insulating layer, doping p.sup.+ impurities into another semiconductor layer of the driver circuit unit, forming an insulating layer having a contact hole over the pixel region, forming a transparent electrode on the pixel region and into the contact hole.
Abstract: An apparatus is disclosed for inclination detection wherein infrared transmitted signal, signal groups S1, S2, S3, . . . including a leader code, a parity bit and bits for data transfer are sequentially transmitted with an interval time t3. At each bit of the signal group S1, "1" and "0" of a binary signal expressing the data are not inverted, at the signal group S2, "1"and "0" expressing the data are inverted, and inversion and non-inversion are repeated every signal group. At bits of each signal group, since a time length expresses "1" and "0", a total time length of each signal group is different from that of other signal group. By repeating sets of inverted and non-inverted signal groups, the time length of each set is averaged, and hence, data processing can be made more efficient.
Abstract: A flat panel display assembly includes an array of micromachined incandescent lamps. According to one aspect of the invention, the array of lamps is placed on a gas filled enclosure to enable the filaments to be operated at higher temperatures with extended lifetimes. According to another aspect of the invention, each lamp (or groups of lamps) may be formed in its own gas filled pocket. In some embodiments, a diode is connected in series with each lamp filament. This arrangement enables the array to be operated such that power is applied to the row (column) at a time and to selected columns. The effective brightness of each lamp may be controlled by determining the length of time each lamp is turned-on.
Abstract: There is disclosed an electrocapillary display sheet which utilizes three transparent sheets being spaced from each other and placed parallel to each other. The medial sheet has a plurality of reservoirs which are filled with a dyed or pigmented ink. Each of the reservoirs has an individually addressable voltage source to create an individual electric field. By activating each electric field, the ink from the corresponding reservoir flows out into the space between the medial sheet and one of the other two sheets in order to create a pixel. By removing the electric filed, the liquid which had created a pixel will retreat back into the reservoir.
Abstract: There are provided a geometry transfer engine (GTE) 61 and a graphic processing unit (GPU 62) which act in combination as a transforming means for converting three-dimensional image data retrieved from a CD-ROM disk into two-dimensional image data for drawing an image on a two-dimensional display screen, and a frame buffer 63 which serves as a memory having an image data storage area (picture data area) for storage of the image data and at least a color data tables storage area (CLUT area) for storage of multiple color lookup data tables in a two-dimensional arrangement, each color data table including a color data wherein the structure is arranged substantially identical to that of each pixel of data in the image. A greater number of colors are thus facilitated and the data processing is simplified.
Abstract: A method of controlling the gray scale of a plasma display device has a forming step of forming a frame for an image by a plurality of subframes each having a different brightness, a setting step of setting the number of sustain emissions of each subframe in an anti-geometrical progression corresponding to the brightness of each subframe, and a displaying step of displaying the image on the plasma display device by a gray scale display having a specific brightness. The number of sustain emissions in each subframe is set individually by the each subframe, and this establishes a linear relation between the gray level and the corresponding brightness Therefore, an enhancement of display quality of the plasma display device can be realized.
Abstract: A data transmission apparatus for transmitting an audio signal through a video signal cable for a computer system including a monitor having a sound speaker. The computer system includes an audio generating device for generating an audio signal; a video generating device for generating a video signal and synchronization signals, a first audio buffer for temporary retaining the audio signal and outputting the audio signal during a blanking interval of the video signal in accordance with the synchronization signals; and a multiplexer for multiplexing the audio signal with the video signal by inserting the audio signal into the blanking interval of the video signal and for generating a multiplexed signal. A video signal cable is connected between the computer system and the monitor for transmitting the multiplexed signal from the computer system to the monitor.
Abstract: In one embodiment, a computer graphics system (100) stores pixel data in a combined look-up table value/lighting modulation value format (RLUT8L4) in a display back buffer (110). Data in the back buffer (110) are transferred to a front buffer (112) by a look-up and modify bit block transfer operation (LMBLT) (118). The LMBLT (118) looks up the look-up table value portion (RLUT8) of the pixel data in a render look-up table (RLUT) (116) to generate fully-lit color components of the pixel (CR, CG, CB). The color components are multiplied by the lighting value (L4) to generate a lighting modified pixel (RGB).According to another embodiment, pixel data are stored in the back buffer (110) and a front buffer (206) in the combined format (RLUT8L4). The buffers (110 and 206) are swapped according to conventional double buffering techniques. Pixel data are used to generate analog display device control signals by a look-up and modify digital-to-analog converter (LMDAC) (312).
Abstract: A method, memory, and apparatus directing a computer system, having at least a processor, memory, and touchscreen, to create a hibernatable virtual pointing device. The method includes the steps of creating a virtual pointing device on the touchscreen under at least a first portion of a hand positioned in a first location on the touchscreen, whereby a hand behavior over the virtual pointing device causes a command to be invoked, in response to detecting the hand no longer being positioned on the touchscreen, placing the virtual pointing device in hibernation and, in response to detecting the hand being re-positioned at a second location on the touchscreen, moving the virtual pointing device to the second location and bringing the virtual pointing device out of hibernation, whereby the hand behavior over the virtual pointing device causes the command to be invoked.
Type:
Grant
Filed:
June 25, 1996
Date of Patent:
August 3, 1999
Assignee:
International Business Machines Corporation
Abstract: A liquid crystal display panel inspection device capable of reducing a manufacturing cost and significantly reducing intervals or pitches between connection wires and a method for manufacturing the same. The device includes a panel holder formed with a mounting hole in which a liquid crystal display panel is mounted and electrodes arranged around the mounting hole on one surface of the panel holder. Also, it includes connection wires of a dog-legged shape each connected at one end thereof to one of the electrodes of the panel holder and arranged so as to extend into the mounting hole. The connection wires are each formed at the other end thereof with a terminal, which is rendered abuttable against one of the electrodes of the liquid crystal display panel. The panel holder is mounted on the other surface thereof with a holding plate for selectively closing the mounting hole.
Abstract: A digital acquisition system maximizes the number of points captured when a user issues a stop command, while maximizing the update rate during continuous operation. In essence, the present invention utilizes an optimum update rate (i.e., set so as to capture a minimum number of points), while operating in a continuous fashion. Upon receiving a stop command for the user, the present invention sets up to take a deep memory acquisition at a slower update rate (i.e., set so as to capture a maximum number of points). If a trigger is received within a predetermined period of time after the stop command is received, then a deep memory acquisition is taken, and the captured points are displayed to the user for viewing. If a trigger is not received within the predetermined period of time after the stop command is received, then the last acquisition taken at the optimum update rate remains displayed for viewing by the user.
Abstract: A monitor flywheel control for use in adjustment of the color monitor display includes a flywheel type bit generator to replace the conventional adjusting pushbuttons and knobs so that by use of a micro-controller technique, a single flywheel control knob which is both rotatable and depressible can be used to perform all the desired adjustment of the computer monitor display.
Abstract: Signal management control units 47.sub.1 -47.sub.n of respective scan drivers LSI in an LCD module are cascade-connected and each have the same construction. A detected signal of the signal management control unit 47J is a data signal latch clock LP applied to a terminal CKB.sub.1. A detected signal of the signal management control unit 47.sub.2 is a frame start signal SP applied to a terminal CKB.sub.2. A detected signal of the signal management control unit 47n is an AC-transforming clock FR applied to a terminal CKBn. The signal management control unit 47.sub.1 includes a signal stop detection circuit 48 serving as a signal detection means for detecting a stop of the detected signal and a sequence processing circuit 51 consisting of a signal delay circuit 49 and a logic circuit 50. When stopping oscillations of, e. g., the frame start signal SP, outputs T.sub.1 -T.sub.n of the circuit 51 change to an L level. Hence, a display-off signal DF of the LCD module assumes the L level.