Patent ID: 8687027
Filing Date: 2014-04-01
Classification: G09G

Abstract:
1. A display panel driver which drives signal lines of a display panel, the display panel driver comprising: a color reducing circuit comprising: a driving section configured to drive a first pixel positioned on a horizontal line of said display panel, and to drive a second pixel positioned on said horizontal line and adjacent to said first pixel in a horizontal direction, wherein if a second input image data corresponding to said first pixel and a third input image data corresponding to said second pixel are supplied as an image data of a second image display format, then said color reducing circuit further generates a third color reduction image data by executing the error diffusion process to the second input image data, and a fourth color reduction image data by executing the error diffusion process to the third input image data, wherein said driving section drives the first pixel in response to the first color reduction image data, drives the second pixel in response to the second color reduction image data, drives said first pixel in response to the third color reduction image data, and drives said second pixel in response to the fourth color reduction image data, and wherein if the first input image data is supplied as the image data of the first image display format, then said first selector selects the third error value, and if the second input image data and the third input image data are supplied as the image data of the second image display format, then the first selector selects the second error value.