Abstract: An electronic device (1) provides for the selective illuminating of an associated display (5) thereby reducing battery power consumption. The electronic device (1) provides for detecting an event that will trigger an update of the display (5) and activation of illumination elements (27) for illuminating the display and determining whether the information to be displayed will occupy a region (B–L) of the display. If so, the region of the display is selectively illuminated by one or more of the illumination elements. The predetermined illumination time period may depend on a selected combination of a size of the region, a location of said region and/or a priority associated with the event.

Abstract: A modulator includes a modulation circuit for generating modulation signals based on inputted luminance data and for outputting the modulation signals to a plurality of image display elements, each of which is driven by a potential difference between a selection potential applied within a predetermined time period by a selection circuit and the modulation signal. The modulation signal has a waveform which is a combination of a plurality of unit pulses, with the unit pulses having an identical width and n kinds of peak values A1 to An, with n being an integer greater than 1, and A1<. . . <An. Additionally, the unit pulses are combined in such a way that maximal peak value portions of the waveform of the modulation signal are dispersed, and that a rising portion and a falling portion of the waveform have a stair-step-like shape.

Abstract: An LCD driving scaler capable of reducing electromagnetic interference employs a spread spectrum phase locked loop (PLL) in which a multi-phase voltage controlled oscillator oscillates and outputs a scaler pixel clock signal and a plurality of oscillation signals of different phases. A spread spectrum processor counts clock periods of a reference pixel clock signal when a horizontal synchronization signal having an adjusted frame rate is activated, and sequentially outputs the plurality of oscillation signals in response to a decoding signal. The plurality of oscillation signals are output to a main divider, which generates the main divider signal by dividing the frequencies of the plurality of oscillation signals. A main divider signal is input into a phase frequency detector, which detects a phase difference between the predivider signal and the main divider signal and outputs the phase difference signal so that the frequency of the scaler pixel clock signal repeatedly varies.

Abstract: A method, system, and article of manufacture provide the ability to redline or mark up geographic information on a personal digital assistant (PDA). An application on the PDA is configured to obtain map data from a server and display the map data on a screen of the PDA. Markup data is obtained from a user through a stylus that is used to markup the map displayed on the PDA. A file comprised of the markup data is created and then uploaded from the PDA to the server. Accordingly, the markup data comprises a markup layer that is stored locally on the PDA and uploaded (synchronized) with the server automatically when a list of a set of maps is updated.

Abstract: The universal input device provides a common user interface for a variety of different computing platforms including printed documents. Using the present system, one may use the universal input device to control various computing devices as well as capture handwritten electronic ink and have the electronic ink be associated with new or stored documents. The universal input device can be identified by a specific identification in order to allow for multiple users to operate on a document and/or within an application program simultaneously or not. An off-set optical system with infrared illumination handles perspective and helps detect positional encoding which can be covered by existing ink under common visible light illumination.

Abstract: An information processing apparatus having a rectangular body and which is used in any vertical or horizontal orientation includes a pair of short side portions and a pair of long side portions. A battery disposed at a short side portion of the body overlaps with the upper cover. A penholder is positioned at a long side portion of the body adjacent to the short side portion where the battery is positioned. The information processing apparatus also has an air outlet opening disposed at or near a corner portion of the body between the short side portion of the body opposed to the side portion where the battery is positioned and the long side portion of the body opposed to the long side portion where the pen is positioned. The information processing apparatus further includes a radio communication receiving element disposed at the long side portion where the penholder is positioned.

Abstract: The universal input device provides a common user interface for a variety of different computing platforms including printed documents. Using the present system, one may use the universal input device to control various computing devices as well as capture handwritten electronic ink and have the electronic ink be associated with new or stored documents. The universal input device can be identified by a specific identification in order to allow for multiple users to operate on a document and/or within an application program simultaneously or not. An off-set optical system with infrared illumination handles perspective and helps detect positional encoding which can be covered by existing ink under common visible light illumination.

Abstract: A touch control panel comprises a transparent substrate, a contact layer, a first transparent electrode formed over the transparent substrate and a second transparent electrode formed over the contact layer facing the first transparent electrode. The space between the first transparent electrode and the second transparent electrode contains a plurality of spacers. The transparent substrate or the contact layer or both have ultra-violet ray shielding capability.

Abstract: A liquid crystal display device which has a liquid crystal display which uses liquid crystal with a memory effect. When a contact action with a screen of the liquid crystal display is made, information displayed thereon is written again thereon. Also, if no changes have been made on the information displayed for a whole day, the same information is automatically written on the liquid crystal display. The display device is attachable to and detachable from a household electrical appliance. The information is about at least one of a calendar, a recipe, a massage, stock, a picture and data reception from outside, etc.

Abstract: Alphanumeric images are displayed in common view in one color on a background of a different color using a liquid crystal projection device. The two colors are sufficiently similar so they are not distinguished by the unaided eye of the viewer. A color selective material in the form of glasses is provided to a subclass of the viewers in the audience to enable these viewers to distinguish the alphanumeric subtitles from the background. This material extinguishes either the alphanumeric images or the background, thereby either providing darkened letters on a light background or light letters on a darkened background. The projection and viewing apparatus can be utilized as a motion picture closed captioning system for a mixed audience of hearing impaired and non hearing impaired individuals to permit the hearing impaired to view the subtitles while those individuals not wearing such wavelength selective glasses would not see the subtitles.

Abstract: A method and a system for testing a plurality of driver circuits of an AMOLED before OLEDs are formed are provided. Each driver circuit includes a terminal, which is connected to an OLED after the OLED is formed, and is connected to a test element to form an electrical loop during the test. The system selects one specific driver circuit to test. The method and the system measure the value of a current signal flowing through the test element, and then analyze it to determine the status of the driver circuit. The said steps executed repeatedly, all driver circuits of the AMOLED are tested efficiently and precisely.

Abstract: A liquid crystal display includes a liquid crystal display panel having a plurality of pixels on a display line. A set of drivers drives a set of pixels, the set of drivers receiving display data and providing video signals to the set of pixels. A clock provides a clock signal to the set of drivers to latch the display data based on a frequency of the clock signal, and receives a feedback signal from the set of drivers prior to an end of the display data received by the set of drivers. A delay circuit stops the clock signal to the set of drivers, based on the feedback signal, after delaying for a first time period, that is no less than a predetermined time period between the feedback signal and the end of the display data received by the set of drivers.

Abstract: Apparatus for driving a cholesteric liquid crystal display wherein the display includes cholesteric liquid crystals having a first planar reflective state and a second transparent focal conic state, which is respectively responsive to different applied fields; an addressing structure having rows and columns of conductors arranged so that when a column and a row overlap, they define a selectable pixel or segment to be viewable or non-viewable; the apparatus being adapted to switch between a first and a second fixed voltage.

Abstract: A display pixel unit provides reduced capacitative coupling between a pixel electrode and a source line. The unit includes a transistor, the pixel electrode, and the source line. The source line includes an extension that provides a source for the transistor. A patterned conductive portion is disposed adjacent to the source line.

Abstract: An input device includes a plurality of character input keys and is operable in a single and a multiple alphabetic character input mode. In the single alphabetic character input mode, an individual character input key is assigned a single alphabetic character, and activating the individual character input key inputs the alphabetic character. In the multiple alphabetic character input mode an individual character input key is assigned multiple alphabetic characters, and the specific character that is input depends upon the number of times the individual character input key is activated. Accordingly, a portion of the character input keys may be deactivated in the multiple alphabetic character input mode.

Abstract: Several driver circuits for energizing series arrays of LEDs are disclosed. The LED driver circuits incorporate programmable microcontrollers and switching regulators in circuits that permit precise control of current applied to the series array of LEDs. One driver circuit senses the condition of a SYNC line such that the light emission pattern of multiple LED light sources, each with a driver circuit connected to the SYNC line may be coordinated without need for a central controller. Another driver circuit applies an overdrive current to the LEDs for a first pre-determined time period, then ramps down the applied current to a sustainable level. A four channel driver circuit provides each channel with electronic switches arranged to simultaneously turn on and electrically connect a constant current source to an LED array, resulting in abrupt turn on and turn off of the LEDs.

Abstract: The present invention realizes proper driving circuits in a driving-circuit integral type liquid crystal display device which has an increased screen size. The liquid crystal display device includes a liquid crystal display panel and a driving circuit which supplies video signals to video signal lines formed on the liquid crystal display panel. The driving circuit is comprised of a first driving circuit which is formed in a step similar to a step for forming pixels provided to the liquid crystal display panel and a second driving circuit which is connected to the liquid crystal display panel after formation of the liquid crystal display panel. The first driving circuit is constituted of a switching circuit which is capable of distributing an output of the second driving circuit to a plurality of video signal lines.

Abstract: A stereoscopic image display apparatus comprising an image display unit that displays combined images formed by combining three different pixels groups in a horizontal direction, which correspond to three different viewpoint images, respectively; a mask member with a plurality of aperture portions that guides light from each pixel group to a corresponding viewpoint; a lenticular lens array arranged between the image display unit and the mask member; and a switching control circuit that switches arrangement of the aperture portions in the mask member in synchronization with switching of the combined images.

Abstract: A method of saving power in a color organic electroluminescent display of the type having color emitting elements with different light emitting efficiencies, includes the steps of: determining the color of the elements having the highest efficiency; converting a color digital image to be displayed on the display to a monochrome image; and displaying the monochrome image using the determined color elements.

Abstract: A per sub-pixel luminance information-generating unit enters per-pixel luminance information, and generates respective pieces of luminance information on target pixel-forming three sub-pixels using luminance information on the target pixel and an adjacent pixel. A per sub-pixel chroma information-generating unit enters per-pixel chroma information, and generates respective pieces of chroma information on the target pixel-forming sub-pixels using chroma information on the target pixel and an adjacent pixel. The target pixel and the pixel adjacent to the target pixel are used to generate respective pieces of the luminance information on the target pixel-forming three sub-pixels. Since the pixels used to generate the luminance information on a per sub-pixel basis are the same ones used to generate the luminance information, the occurrence of color irregularities is inhibited between an original image and a multi-value image displayed on a per sub-pixel basis.