Abstract: A first grayscale clock pulse generation circuit compares a value stored in each timing register with a first count value and outputs a first grayscale pulse to a selector, a calculation circuit calculates the first count value and outputs a second count value, a second grayscale clock pulse generation circuit compares a value stored in each timing register with the second count value and outputs a second grayscale pulse to the selector, a grayscale counter updates a grayscale count value based on the first or second grayscale clock pulse selectively output from the selector in units of one horizontal scan period, and a grayscale coincidence detection circuit changes a voltage level of a PWM signal when the relationship between grayscale data input to the grayscale coincidence detection circuit and the grayscale count value satisfies a predetermined relationship.

Abstract: An object of this array substrate for a flat display device is to eliminate display unevenness caused by the inequality of parasitic capacitances of switches of signal line switch circuits. Electrode patterns (P) which connects the gate electrodes of the switches (ASW) to any one of a plurality of switch control signal lines (ASWL1 and ASWL2) are formed so as to each two-dimensionally overlap all of the switch control signal lines ASWL and to have substantially identical shapes, thus equalizing the areas of the electrode patterns (P).

Abstract: A wireless optical pointing device. The wireless optical pointing device comprises a photo sensor detecting a series of continuous images on an operating surface, a processing unit coupled with the photo sensor, processing the detected images, and outputting an image displacement signal accordingly, and a RF (Radio Frequency) unit coupled with the processing unit and transmitting a RF signal according to the image displacement signal, wherein the photo sensor and the RF unit receive a common oscillation frequency source and operate accordingly.

Abstract: An information apparatus includes a display unit which displays an icon, a pointer, and the like, and a pointing device. When the pointer executes predetermined movement and stop in an icon-selection effective region formed in a periphery of the icon, the information apparatus determines that the pointer has selected the above-described icon. It is possible to apply a menu item in place of the icon. It is possible to set plural conditions for determining that the icon has been selected. It is possible for an operator to easily select the icon and the like on a small display unit by using the pointing device.

Abstract: There is provided a source driver having a repair amplifier and method of processing signals. There is also provided a liquid crystal display device containing the source driver. The source driver drives adjacent source lines with source line driving signals. The repair amplifier amplifies the source line driving signal to drive a part of a source line.

Abstract: The present invention provides a technique of a method for driving an image displaying apparatus to suppress animated picture pseudo-contour, flicker disturbance and pseudo-contour disturbance by making weighting of light emission within a field is made equal to or almost equal to each other at all gradations. According to this technique, when an image signal of multiple gradation is expressed by dividing one field duration into a plurality of subfields with different relative ratios of luminance, a given number of subfields among a plurality of subfields are divided into “2n” subfields (SF1a to SF8b) wherein “n” represents an arbitrary integral number. Then, “2n” subfield groups (SF1a to SF8a, SF1b to SF8b) are formed so that one group divided into “2n” subfield belong to the groups different from each other. Subfield groups (A and B) are symmetrically arranged with respect to the center of one field duration, and the subfields (SFna, SFnb) divided into “2n” subfields are symmetrically arranged.

Abstract: A liquid crystal display apparatus and a method of driving the same capable of lowering a power consumption as well as a production cost. A liquid crystal display apparatus according to the present invention comprises: pixels including red, green and blue color pixels arranged in a direction along a data line; gate line groups, each gate line group having a set of two gate lines electrically connected each other, and each gate line crossing the data line; a data driver that drives the data line; a gate driver that drives the gate line groups; and a timing controller that controls the data driver and the gate driver, the timing controller having at least one line memory that temporarily stores data supplied to the data driver.

Abstract: Provided is a source driver circuit for an active matrix electroluminescent (EL) display including a digital-to-analog converter/ramp circuit for converting a digital signal into an analog signal, and generating a ramp signal in this process, simultaneously, whereby high degree of integration would be possible since a conventional complicated circuit is not required and gray scale with the high characteristic can be implanted, regardless of a change of a temperature or a threshold voltage.

Abstract: For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.

Abstract: The liquid crystal display device includes a histogram analyzer analyzing a histogram of an input image and determining the input image as being in one of a low brightness mode, a normal mode, and a high brightness mode based on the histogram analysis, a back light controller controlling a maximum brightness of a back light unit based on the mode determination, and a data modulator enlarging the histogram of the input image to modulate data of the input image. The histogram analyzer detects a most frequent value of gray scale occurring most frequently in the input image of one frame, compares the most frequent value with a predetermined low reference gray value and a predetermined high reference gray value, and determines the input image as in one of the low brightness mode, the normal mode, and the high brightness mode based on the compared result.