| Patent application number | Description | Published |
|---|
| 20090231324 | Liquid crystal display device - A liquid crystal display device used in miniaturized portable equipment includes a distribution circuit corresponding to a circuit scale of a drive circuit to cope with a high-definition multi-grayscale display. A liquid crystal display device which is constituted of a liquid crystal display element and a liquid crystal drive circuit includes a distribution circuit which distributes an output of a drive circuit to a plurality of video signal lines within one scanning period, the distribution circuit is divided into a plurality of distribution circuits, and control signals are supplied to each distribution circuit from both end portions of the each distribution circuit. Further, when an output part of the drive circuit is configured such that a high withstand-voltage output amplifier and a low withstand-voltage output amplifier are alternately connected with the distribution circuit, a master function and a slave function are imparted to the drive circuit so as to allow the drive circuit to cope with odd-numbered outputs. | 09-17-2009 |
| 20090267931 | Liquid Crystal Display Device - The present invention realizes an optimum driving method in a miniaturized liquid crystal display device having two liquid crystal display panels so as to realize the low power consumption. The liquid crystal display device includes a first liquid crystal display panel, a second liquid crystal display panel, a drive circuit which is mounted on the first liquid crystal display panel, output terminals which are formed on the first liquid crystal display panel and to which signals outputted from the drive circuit are supplied, and connection lines which connect the output terminals and the second liquid crystal display panel, wherein the drive circuit can change an AC driving method during a display period of the first liquid crystal display panel and an AC driving method during a display period of the second liquid crystal display panel which are present within the same frame. | 10-29-2009 |
| 20100220045 | DISPLAY DEVICE - In a display device, profile emphasizing is performed without using a frame memory while realizing the further reduction of power consumption. A display device includes a display panel provided with a plurality of pixels each of which has a pixel electrode, and a drive circuit which supplies a video signal to the respective pixels through video lines. Here, the drive circuit includes a profile emphasizing circuit which generates profile emphasizing display data which emphasizes a profile in response to display data inputted from the outside and emphasizes a profile portion of an image to be displayed on the display panel, and a memory which stores the profile emphasizing display data. The profile emphasizing circuit includes a latch circuit which sequentially stores continuous k (k≧2) pieces of display data in display data for 1 display line and an arithmetic circuit which generates the profile emphasizing display data based on the k pieces of display data stored in the latch circuit. | 09-02-2010 |
| 20100245320 | DISPLAY DEVICE - An object of the invention is to reduce the size of a decoder circuit of a display device. A decoder circuit which outputs voltages corresponding to 8-bit digital values includes a predecoder section, which includes an A decoder, B decoder, and C decoder, each of which is configured of a matrix type decoder circuit which carries out a three bits' worth of decoding, and a tournament type decoder circuit which carries out a three bits' worth of decoding, a selection circuit which, having input thereinto three voltages output respectively from the A decoder, B decoder, and C decoder, and applied to three output signal lines, selects two voltages of the three input voltages using a bit with one of the digital values and applies them to two output signal lines, and an intermediate voltage output circuit which, having input thereinto the two voltages selected by the selection circuit, outputs a voltage which is the average of the two voltages. | 09-30-2010 |
| 20100328292 | DISPLAY DEVICE - A decoder circuit which outputs a voltage based on a 8-bit digital value includes: a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit. Due to such a constitution, it is possible to reduce a circuit scale of the decoder circuit which outputs the voltage corresponding to the 8-bit digital value. | 12-30-2010 |
