Abstract: To change image quality in accordance with the image to be displayed, a color filter plate 3 is driven to sequentially split the white light incident on an A portion into red, blue, and green light beams to irradiate a liquid crystal panel, thus displaying a full-color image by a so-called field sequential scheme. In this case, if a sector region 4BG of an auxiliary filter plate 4 is always matched to the A portion (FIG. 2A), the quality of a full-color image is defined by the color filter plate 3, resulting in an increase in luminance. In contrast to this, when a red filter section 3R and auxiliary red filter section 4R are synchronously driven to be simultaneously irradiated with white light, the quality of a full-color image is defined by both the color filter plate 3 and the auxiliary red filter section 4R. As a consequence, an image with excellent color reproducibility is obtained.

Abstract: An image displaying apparatus includes a transparent film adhered to an outer surface of a face plate, and a transparent conductive film formed on an outer surface of the transparent film. When a potential difference is formed between the transparent conductive film and an inner surface of the face plate, a reduction in voltage of the transparent film becomes greater than a reduction in voltage of the face plate.

Abstract: The invention relates to an operator's communication unit (1) comprising a mouse (4) and an annunciator (3) that interacts electrically therewith, and a cable arrangement (2) for connection to the input (5.1′) of an operator's communication unit for a computer. The structure of the inventive device is simple and it is easy to handle by virtue of the fact that the mouse (4) is connected via a single mouse cable (2.1) and the annunciator (3) is connected via a single annunciator cable (2.2) to a common connection element (2.9′), whereby the mouse cable (2.1) and the annunciator cable (2.2) can be joined together either directly or via an additional connection element (2.5) or an additional transition cable (2.9) and a connection element to the input (5.1′) to the operator's communication unit for a computer (5).

Abstract: An image display device comprises a first clock generator for generating and outputting a first clock based on input horizontal synchronizing signals corresponding to horizontal lines making up input image signals, a second clock generator for generating and outputting a second clock, storage configured so as to accumulate image data sampled from the input image signals based on the first clock using the first clock output from the first clock generator and read out the accumulated image data using the second clock output from the second clock generator, a controller for outputting control signals for controlling the cycle of output horizontal synchronizing signals at the time of reading out and displaying the accumulated image data from the storage, according to image size information of the input image signals, cycle information of the input horizontal synchronizing signals, display panel size information, and cycle information of the second clock, and a synchronizing signal generator for outputting the out

Abstract: A rotary interface for inputting text and other information that allows the user to quickly select and input large amounts of textual information into very small devices such as cell phones, hand-held or watch-sized PDAs, or other small devices with embedded processors where standard keyboard entry is untenable and where menu-driven selection and handwriting recognition-based character entry are non-optimal. The input interface includes three main components: a rotatable character or icon display in the form of a dial, a ring or appropriate electronic display; a means of unambiguously displaying or designating the currently selected character; and an entry mechanism for inputting the character data into the memory of the electronic device.

Abstract: A matrix of liquid crystal pixels (160) is provided. A digital-to-analog converter (DAC) (150) is coupled to the matrix and produces an output voltage that can be applied to one or more pixels in the matrix. The DAC (150) receives a multi-bit digital input and generates its output voltage to correspond to the digital input. The conversion function of the DAC is adapted to have a higher resolution within a voltage range in which most grayshade changes of the LCD occur.

Abstract: In order to provide a device for generating an image on an image surface with N×M image elements which can be illuminated individually, comprising a plurality of semiconductor radiation sources, each of which generates radiation with at least one color, an optical imaging means with a beam guidance, by means of which a plurality of image elements can be illuminated with each of the semiconductor radiation sources, with which it is possible to generate an image on an image surface in as simple a manner as possible using radiation sources, it is suggested that the image surface (12) be divided into a plurality of continuous image surface sections (14), each comprising a two-dimensional ensemble of image elements (16), that an illumination unit (20, 220, 320) be associated with each of the image surface sections (14) and that each illumination unit (20, 220, 320) have at least one semiconductor radiation source (30) and at least one optical imaging means (40, 240, 340) of its own associated with this illum

Abstract: An active matrix LCD using two-terminal non-linear elements as switching elements is disclosed. This new kind of active matrix LCD comprises a matrix of pixel elements, and each pixel element comprises a first two-terminal non-linear element (5), a second two-terminal non-linear element (5′), and a capacitor (8) for holding the voltage on the LCD cell. When both the first and the second two-terminal non-linear elements are in the conducting state, the voltage on the capacitor (8) can be changed. When both the first and the second two-terminal non-linear elements are in the non-conducting state, the voltage on the capacitor (8) can be maintained. To improve the display uniformity of an active matrix LCD based on two-terminal non-linear elements, the display characteristics of each pixel is measured and stored in a calibration memory (70), and the correct driving parameters for each pixel are calculated based on the display characteristics of the pixel fetched from the calibration memory (70).

Abstract: A piezoelectric transducer is provided, in which a piezoelectric shell has conductive layers on the outside and inside of the shell, which are adapted to be connected to a signal input source. When the conductive layers are activated, the piezoelectric layer resonates to produce an output signal waveform from the shell structure. An alternative embodiment includes a flat piezoelectric layer with opposing conductive layers, which is then formed into a shell structure. In preferred embodiments, an inner spool is located within the shell structure, which acts to increase the output sound pressure level for the transducer. To increase the sound pressure level further, the inner spool preferably includes a recessed area, which defines a void between the inner conductive layer on the shell and the recessed area. The void acts to increase the characteristic output sound pressure level for the transducer.

Abstract: A display system or monitor arrangement for stereoscopic displaying of images includes a pair of displays for providing respective left eye and right eye images and arranged in perpendicular intersecting planes, a beam splitter for combining the images from the displays in a common light path, and a means to discriminate between respective images to present the respective left and right eye images to the eyes of a viewer for viewing. Image discriminating functions may be obtained using plane polarized light characteristics and/or circular polarized light characteristics. A package arrangement retains the display a system components for storage or use; and a cubical mount structure may provide alignment and positioning of respective parts of the display system. Display methods for displaying stereoscopic images in a common light path are included.

Abstract: Disclosed is a user-friendly electronic apparatus having a pen and a panel as the input devices. The pen is tethered to the apparatus by a cord on which position data is recorded along its length direction. Responding to the readout of the position data, the CPU controls the reel-in operation according to the standby mode or the sleep mode of the apparatus. As the pen is held at a proper position on the apparatus by the CPU's control, the user is free from worrying about dropping, spoiling, or losing the pen. Besides, the operation of reeling-out the pen from a housing position in the apparatus allows the apparatus to automatically come back into an active mode from its sleep mode or standby mode.

Abstract: A keyboard with a numbers of keys disposed on the base is capable of showing the three-dimensional characters. Each key includes a shell and a three-dimensional character embedded in the shell. Combined with an illuminant module positioned between the base and keys for providing the light source, the three-dimensional characters can be shown clearly and distinguishably by utilizing the color contrast relation with light between the light-colored transparent three-dimensional characters and dark-colored or opaque shells.

Abstract: In a drive circuit for driving a liquid crystal display, a video signal generating block for generating a video signal to be supplied to a display panel, includes, for each of R (red), G (green) and B (blue), and coupled in the named order, a ADC circuit for analog-to-digital converting a video signal, two memories each having a capacity which can hold signals of one line of the display panel, a V-T compensation circuit for compensating a non-linearity of a transparent light strength to an input voltage of the display panel, a polarity inverting circuit for an AC driving of liquid crystal pixels in the display panel, a DAC circuit for digital-to-analog converting the digital signal outputted from the polarity inverting circuit, and an output selection circuit for supplying a precharge voltage to the display panel.

Abstract: There is provided a driving circuit including active matrix type liquid crystal display capable of decreasing the electric power consumption of CMOS buffers contained in a scanning line driving circuit and picture signal line driving circuit. The liquid crystal display has an active matrix type liquid crystal display elements comprising switching elements connected to a plurality of scanning lines and a plurality of picture signal lines perpendicular to the scanning lines. The liquid crystal display includes a digital circuit wherein at least one of a scanning line driving circuit for applying a scanning pulse to the switching elements via the scanning lines and a picture signal line driving circuit for applying a picture signal to the picture signal lines comprises one stage of CMOS buffer or a plurality of CMOS buffers connected in multi stages, the CMOS transistor or each of the CMOS transistors including an N-type thin-film transistor and P-type thin-film transistor which are formed on the same substrate.

Abstract: Electric power consumed in an operation of displaying a gray-scale image is reduced. One of a plurality of scanning lines is selected during one horizontal scanning period, and a selection voltage is applied to the scanning line during one of a first half period and a second half period that said horizontal scanning period has been divided into. When an intermediate gray level is displayed, the selection voltage is applied to a scanning line in an odd-numbered column during the second half period and the selection voltage is applied to a scanning line in an even-numbered column during the first half period.

Abstract: A display device includes (a) a plurality of pixels arranged in a matrix, each of the pixels including a light-emitting device, a switch and a transistor, (b) a scanning line extending in a first direction, (c) a data line extending in a second direction perpendicular to the first direction, (d) a first bias voltage line extending in the second direction, (e) a bias voltage generating circuit which applies a bias voltage to the bias voltage line, (f) a second bias voltage line which surrounds the pixels and is a closed line, and (g) a third bias voltage line which electrically connects the bias voltage generating circuit to the second bias voltage line. The first bias voltage line is electrically connected at opposite ends thereof to the second bias voltage line. The switch is turned on when the scanning line is activated, to thereby allow image signals to be transmitted to the gate of the transistor therethrough from the data line.

Abstract: A storing part stores image data of an input image signal; and a control part detects a resolution of the image data from a synchronization signal which is in synchronization with the input image signal, and, controls timing of reading the image data from the storing part according to the thus-detected resolution. The control part detects periods of a horizontal synchronization signal and vertical synchronization signal which are in synchronization with the input image signal, determines a magnification for an image to be output, from a horizontal synchronization interval and a vertical synchronization interval of the image to be output, and the periods of the horizontal synchronization signal and vertical synchronization signal which are in synchronization with the input image signal; and controls the timing of reading the image data from said storing part according to the thus-determined magnification.

Abstract: A drive circuit for driving a display device includes a voltage level shift circuit which receives a control signal and a data signal and which shifts a voltage level of the control signal and the data signal to output a voltage level shifted control signal and a voltage level shifted data signal. The drive circuit also includes an output circuit which receives the voltage level shifted data signal and which outputs an output data signal corresponding to the voltage level shifted data signal in response to the voltage level shifted control signal.

Abstract: A method of capturing data having the steps of writing on a form with a pen to leave an image on the form, scanning the written image as the written image is being written, and storing the scanned written image in a specific data field. A method of capturing an input, including written information, sounds and images includes the steps of specifying a data field by touching a pen tip to a data-field-specific area on a form; supplying the input; electronically capturing the input and associating the input with the specified data field. An information capturing system, includes a pen, the pen including a writing tip and a position transducer to determine the position of the writing tip relative to a form.

Abstract: A matrix-display panel such as a liquid crystal display panel is composed of row and column electrodes and liquid crystal interposed between both row and column electrodes. Pixels formed at each intersection of the electrodes are driven by imposing composite voltages consisting of scanning voltages supplied to the row electrodes and image data voltages supplied to the column electrodes. Pixels aligned along one row electrode are alternately connected to two or three neighboring row electrodes in a zigzag manner, and an interlaced scanning is performed by jumping one or two row electrodes at a time, thereby reducing a flicker frequency to an invisible level and making a line-scroll invisible. The pixels may be driven by switching a transistor connected to each pixel.