Abstract: This invention provides a digital-analog converter circuit capable of appropriately correcting the optical characteristics of the liquid crystals according to the change in design or the preference of the user, and achieving goals of miniaturization, cost-lowering, as well as wide design suitability. The digital-analog converter circuit includes a storage device for storing a voltage characteristic curve, a modulating device for generating a frequency signal in accordance with a data from the voltage characteristic curve stored in the storage device in response to a selected data, a variable resistance device connected between a first power source and a second power source, in which the resistance value of the variable resistance device is changed in accordance with the frequency signal from the modulating device, a holding device for holding a voltage generated at the variable resistance device, and an output device for outputting the voltage to a desired output end.

Abstract: A demultiplexer includes an input terminal for providing an input signal, a plurality of output terminals for outputting the input signal, and a switching circuit coupled among the input terminal and the plurality of output terminals, and outputting the input signal selectively from the plurality of output terminals according to a plurality of control signals provided to a plurality of control terminals. For miniaturizing the demultiplexer, the switching circuit includes one or more switch elements connected between the input terminal and each of the output terminals in series, wherein at least two of the switch elements coupled to different output terminals are simultaneously switched in response to one control signal from the plurality of control terminals.

Abstract: A semiconductor integrated circuit capable of maintaining characteristics of transistors in a circuit including a plurality of cascade connected transistors. The circuit includes an inverter which has a series connection of P-MOS transistors and a pair of N-MOS transistors. The P-MOS transistor is connected to a high potential source VH and the N-MOS transistor is connected to a low potential source VL. The gate of each MOS transistor is connected to an input signal line. The inverter circuit further includes a P-MOS transistor connected between a node and input signal line, and an N-MOS transistor connected between a node of the N-MOS transistors and the input signal line. The gates of the P-MOS transistor and the N-MOS transistor are connected to an output signal line of the inverter circuit.

Abstract: The invention aims at preventing an occurrence of artefacts while reducing power consumption. A matrix addressing method for alternately driving pixels. The frame period of the images is formed by successively sequencing on a time series a plurality of block periods, the block periods each being composed of a first half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with one polarity, the second half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with the other polarity. Ones of even-numbered row electrodes and odd-numbered row electrodes in arrangement order on the display screen are selected in the first half block. The others spatially adjoining the ones are selected in the second half block.

Abstract: A liquid crystal drive circuit in which the degradation of the element is minimized in partial drive even for the GOG circuit configured by amorphous silicon, and a liquid crystal display device including the same are provided. The liquid crystal driving circuit includes a first shift register and a driving means. The first shift register advances through the line address of a pixel array to display an image, and outputs an enable signal only to drive the display target line. The driving means outputs a line drive signal corresponding to the enable signal to drive the line enabled by the first shift register.

Abstract: A method of manufacturing a heat transport device includes injecting a working fluid that transports heat by a phase change into a casing through an injection opening of the casing under reduced pressure, sealing an injection path by caulking under the reduced pressure, the injection path being provided in the casing into which the working fluid is injected and causing the injection opening and an action area in which the phase change of the working fluid occurs to communicate with each other, contacting a peripheral area of the injection opening of the casing with an inner surface of the injection path by caulking the peripheral area, the peripheral area including the injection opening, and sealing the injection opening by welding a part of the casing contacted.

Abstract: A liquid crystal display device and a driving method thereof capable of reducing flicker are provided. During a predetermined time period, two continuous inversion operations to pixel voltages and common voltages are repeatedly performed with a timing interval in which the liquid crystal component does not react to changes. After the predetermined time period, the pixel voltages and common voltages are performed by a single inversion operation such that they are phase inverted. Then, the pixel voltages and common voltages are repeatedly performed during the predetermined period by two continuous inversion operations with the timing interval in which the liquid crystal component does not react to changes.

Abstract: A display device whose pixels being embedded with a memory is disclosed. These pixels each includes: a capacitor; a switching unit between the display unit and the capacitor, being turning on during the sampling period; and a voltage detecting circuit for detecting the voltage between the capacitor and the switching unit. Besides, the display unit also includes: a first capacitor voltage source connected to a terminal of the capacitor which is not connected to the voltage detecting circuit, and applying a predetermined voltage within the variation range of the voltage state of the display unit on the capacitor in the sampling period; and/or a second capacitor voltage source, being connected to a terminal of the display unit which is not connected to the switching unit, and applying a predetermined voltage within the variation range of the voltage state of the display unit on the display unit in the sampling period.

Abstract: Provided is a micro-electromechanical device capable of processing an electric signal in the high frequency region by a simple device structure. The micro-electromechanical device is formed, including an oscillator element having a plurality of electrodes disposed on a substrate and a beam facing the electrodes to oscillate by electrostatic drive. An input/output of a high frequency signal is applied to one of the combinations of the electrodes and the beam.

Abstract: An active matrix type liquid crystal display is disclosed. The liquid crystal display comprises a plurality of pixel elements arranged in the form of a matrix. Each of the pixel elements comprises a liquid crystal element, a dynamic memory cell and a switch device. The dynamic memory cell is disposed at the intersection point of a source line and a gate line to periodically perform refreshing for inversing the output status of the dynamic memory cell, wherein the transmittance of the liquid crystal element is controlled by a digital output of the dynamic memory cell. The switch device is disposed between the dynamic memory cell and the liquid crystal element and uses a control signal to control the connection between the output of the dynamic memory cell and the liquid crystal elements.

Abstract: An active matrix type display device utilizing multi-bit memory in pixel technology, capable of displaying still and moving pictures are provided. A display device of an embodiment includes a plurality of pixels P1 arranged in a matrix with lines and rows, wherein a source driver 20 provides either analogue or digital image data for the pixels. The respective pixels P1 are divided into a plurality of sub-pixels SP11 through SP14, wherein the sub-pixels respectively include display components C11 through C14, a memory means 40 memorizing gradation display data, for each display components, included in the digital image data provided by the source driver 20, and a data switching means 44 switching data providing for each display component to either of the gradation display data memorized in the memory means 40 and analogue image data provided by the source driver 20.

Abstract: It is an object to provide an active matrix liquid crystal display device capable of effectively eliminating flicker with a simple structure.

Abstract: An active matrix display apparatus with touch sensing function having high aperture ratio includes a plurality of pixels, having respective pixels arrayed as a matrix, positioned at intersections of source lines of respective columns and gate lines of respective rows, each pixel having a thin film transistor and a liquid crystal element, which is positioned between a drain of thin film transistors and a common line; and a touch switch unit having touch sensing transistors and a mechanical switch, which is positioned between two adjacent pixels in an identical column. The gates of the touch sensing transistors are coupled to the gate lines of the two adjacent pixels wherein the touch sensing transistors coupled in series and the mechanical switch shared by the adjacent pixels, are coupled between the source line of the identical column and the common line.

Abstract: The display device of the present invention includes a display area having a plurality of pixels arranged in rows and columns, at least one source driving device providing power or electric charges for the pixels through source lines, at least one gate driving device controlling the pixels through gate lines, and a boundary switch separating the display area into a plurality of sub-display areas and placed between the sub-display areas to connect or disconnect the source lines and/or the gate lines. When the boundary switch disconnects the source lines and/or the gate lines, the sub-display area directly connecting with the source driving device or the gate driving device will be driven.

Abstract: A demultiplexer includes an input terminal for providing an input signal, a plurality of output terminals for outputting the input signal, and a switching circuit coupled among the input terminal and the plurality of output terminals, and outputting the input signal selectively from the plurality of output terminals according to a plurality of control signals provided to a plurality of control terminals. For miniaturizing the demultiplexer, the switching circuit includes one or more switch elements connected between the input terminal and each of the output terminals in series, wherein at least two of the switch elements coupled to different output terminals are simultaneously switched in response to one control signal from the plurality of control terminals.

Abstract: This present invention provides a liquid crystal display (LCD) device in which the sub-pixel is provided with three different voltage levels, so that image quality is improved without the configuration of additional gate lines. The present invention overcomes the reduction of aperture ratio in conventional LCD devices due to the configuration of additional gate lines. By the present invention, the white washout problem relating to the off-axis viewing angle can be overcome while the aperture ratio is not reduced.

Abstract: Disclosed is an LCD display utilizing a frame memory and a lookup table for pixel overdrive. A plurality of pixels is arranged in an array corresponding to the gate lines and the source lines. The frame memory is a memory formed by at least one storage capacitor and at least one thin film transistor in each pixel. Moreover, a compression unit and a decompression unit are coupled with the frame memory. The compression unit outputs compressed gradation data of the present image. The decompression unit outputs decompressed gradation data of the former image.

Abstract: It is an object of the present invention to reliably avoid problems with a load connected when stopping the operation of a charge pump circuit. The charge pump circuit is provided with a first switching element (S1) connected to a power supply, a second switching element (S2) connected to a load (102)and a capacitor element (Cp) connected between the first switching element (S1) and the second switching element (S2), and moves charge in a direction opposite to the direction in which charge moves during normal operation by inverting the phase of any one of clock signals applied to the first switching element (S1), second switching element (S2) and capacitor element (Cp) during normal operation.

Abstract: A drive circuit is disclosed. The drive circuit includes a first p-typed thin film transistor (PTFT), a second PTFT, a first n-typed thin film transistor (NTFT), a second NTFT and a capacitor. The drain of the first PTFT is coupled to a first electrical line, and the gate thereof is coupled to a first clock line. The drain of the second PTFT is coupled to a second clock line, and the source thereof is coupled to an output. The source of the first NTFT is coupled to a second electrical line, and the gate thereof is couple to an output of a preceding drive circuit. The source of the second NTFT is couple to a third electrical line, the gate thereof is coupled to a third clock line, and the drain thereof is coupled to the output. The capacitor has one end coupled to the second electrical line, while the other end is coupled to the source of the first PTFT, the drain of the first NTFT and the gate of the second PTFT.

Abstract: Active matrix display devices capable of improving aperture ratio of pixels and of smoothing intermediate colors are presented. An active matrix display device has static random access memory (SRAM) devices and digital to analog converters (DAC), which are both allocated to each of sub-pixels divided by a pixel. The SRAM stores an input digital data with over two bits, which can be used as gradient information for gray scale display of the sub-pixels. The input digital data is converted into analog data for display by the DAC. Gray scale display of the sub-pixels can be performed based on gray scales determined by the analog data for display. The pixel can be used to display multiple gray scales according to combinations of areas and gray scales of the sub-pixels.