3-D display device and display method thereof

A method for displaying an image of a stereoscopic image display device that uses a lenticular lens, comprising:

• determining whether an input image signal received from an external source is an image signal representing a 2-D image or an image signal representing a stereoscopic image;
• filtering the input image signal to generate output data when the input image signal is an image signal representing a 2-D image;
• and
• outputting the output data to display an image,
• wherein 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,
• 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.

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;
• and
• a converter that filters an image signal representing a 2-D image signal received from an external source to generate output data and to transmit it to the signal controller, wherein the converter includes a line memory for storing the image signal for one row of the image signals, and a filtering unit for filtering the image signal stored in the line memory;
• wherein the filtering uses a 3×3 square matrix of weight values and the filter is applied to the image signal 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.

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;
• 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,
• 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,
• the central weight value of the square matrix is the largest, and the center top, center bottom, center right, and center left weight values are the same and are different from the weight values of the upper left corner, upper right corner, lower left corner, and lower right corner that are the same, and
• the filtering is processed for subpixels representing the same color.

A method for displaying an image of a stereoscopic image display device that uses a lenticular lens, comprising;

• determining whether an input image signal received from an external source is an image signal representing a 2-D image or an image signal representing a stereoscopic image;
• filtering the input image signal to generate output data when the input image signal is an image signal representing a 2-D image;
• and
• outputting the output data to display an image, wherein:
• 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,
• the central weight value of the square matrix is the largest, and the center top, center bottom, center right, and center left weight values are the same and are different from the weight values of the upper left corner, upper right corner, lower left corner, and lower right corner that are the same, and
• the filtering is processed for subpixels representing the same color.

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;
• and
• a converter that filters an image signal representing a 2-D image signal received from an external source to generate output data and to transmit it to the signal controller,
• wherein the converter includes a line memory for storing the image signal for one row of the image signals, and a filtering unit for filtering the image signal stored in the line memory;
• wherein the filtering uses a 3×3 square matrix of weight values and the filter is applied to the image signal 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,
• wherein the central weight value of the square matrix is the largest, and the center top, center bottom, center right, and center left weight values are the same and are different from the weight values of the upper left corner, upper right corner, lower left corner, and lower right corner that are the same, and
• the filtering is processed for subpixels representing the same color.