Patent ID: 8576277

Claim:
A stereoscopic image display device comprising: a display panel including pixels having subpixels representing at least three different colors and arranged in a matrix form; a lenticular lens disposed on the display panel; a data driver applying a data voltage to the display panel; a signal controller controlling the data driver; and a converter that filters an image signal representing a 2-D image signal received from an external source to generate and transmit output data to the signal controller, wherein the converter includes a line memory for storing the image signals for one row of the image signals, and a filtering unit for filtering the image signals stored in the line memory, and wherein the lenticular lens has a semi-circular cylinder shape and is aligned to transmit light from at least one row pixel of the display panel, the filtering uses a 3×3 square matrix of weight values, the filter is applied to image signals sequentially stored to the line memory wherein the output data is generated by multiplying the corresponding image signal by the weight values of the square matrix and accumulating the multiplied values, and the central weight value of the square matrix is the largest, and the surrounding weight values are the same, and the filtering is processed for subpixels representing the same color.