Sanyo Electric Co., Ltd.

Kenji Saiki

Mitsugu Kobayashi

Yusuke Tsutsui

Hisao Uehara

Makoto Kitagawa

Makoto Fujioka

Seiji Matsuda

The first output bufferof the driving LSIoutputs the first video signal voltage V and the second output buffer outputs the second video signal voltage *V with the opposite polarity from that of the first video signal voltage. The first and the second video signal voltages V, *V are fed to the drain driverof the display panelthrough a pair of signal wirings. The drain driversupplies the first video signal voltage V to a pixel and the second video signal voltage with the opposite polarity to the pixel adjacent to the fist pixel through the drain lineand the TFT. In this way, any pair of the adjacent pixels in horizontal and vertical direction receives the video signal voltages with opposite polarities from each other.

Active matrix liquid crystal display device

An image processing apparatus detects, in step 1, whether or not differences between currently supplied image data and image data of a previous pixel are more than a predetermined value m, and identifies a border of a computer-created image or a natural image, where a brightness level differs from the remaining area of the image, when the differences are more than the predetermined value m. Conversely, when the differences are less than the predetermined value m, the image processing apparatus checks, in step 2, whether image data at a pixel before and a pixel two before the current pixel are identical with respect to the color components constituting the color image. When the differences are not all zero, it is checked whether or not the image data at a pixel before the current pixel and the image data at the current pixel are all zero. When the image data are not identical, the color image is identified as being a natural image. When the image data are identical, the color image is identified as being a computer-created image. In step 3, the computer-created image is checked as to whether it is a 2-pixel checkered image.

Image data processing through changing error diffusing technique

Growing community of inventors

Gifu, Japan

Kenji Saiki