Image processing device, image processing method, and liquid crystal display incorporated with image processing device

摘要

The present invention provides an image processing device, including a buffering unit, a minifying unit, a synchronous dynamic random access memory (SDRAM), an overdriving unit, a comparing unit, a restoring unit, and an output controlling unit. The present invention further provides an image processing method and a liquid crystal display incorporated with the image processing device. The image processing device, the image processing method, and the liquid crystal display incorporated with the image processing device will not only directly perform the overdrive-processing of an input high-resolution image, but will also, on the one hand caches an input high-resolution image by the buffering unit, and on the other hand minifies an input high-resolution image. As a result, the image data is already reduced when the overdrive-processing performs, and the consumption of the space of the SDRAM is also accordingly reduced. For the input of a high-resolution image, there is no need to increase the amount of the SDRAM anymore, and it is easier to control the overall cost. During output, a static image is directly output, and a dynamic image is output through the overdrive-processing and the restoration of original resolution to maintain the quality of the image.

主权项

1. An image processing device, including
a buffering unit for caching a first image of high resolution input therein; a minifying unit for creating a second image by reducing proportionally the resolution of the first image; a synchronous dynamic random access memory (SDRAM) for receiving and temporarily storing the second image, and outputting a third image which is an image temporarily stored in the synchronous dynamic random access memory previous to the second image; an overdriving unit for outputting a fourth image based on an overdrive-processing of the second and third images; a comparing unit for determining similarity and difference between the second and third images, and outputting a result of the comparison; a restoring unit for generating a fifth image by restoring the resolution of the fourth image to the same resolution of the first image when there is a difference between the second and third images determined by the comparing unit; and an output controlling unit for outputting the fifth image when a difference between the second and third images is determined by the comparing unit, or outputting the first image when the second and third images are determined as being identical by the comparing unit.