Transparent liquid crystal display device

A display device, comprising:

• a first substrate and a second substrate;
• a polarizing plate over an outer surface of the first substrate;
• first and second electrodes and a passivation layer between the first and second electrodes over an inner surface of the first substrate;
• a third electrode over an inner surface of the second substrate;
• a color filter over an outer surface of the second substrate, the color filter comprising a colored dichroic dye material;
• and
• a liquid crystal layer between the first and second substrate, the liquid crystal layer including a liquid crystal material and a black dichroic dye material;
• and
• where the display device is configured to:
• operate in a transparent mode where an object on one side of the display device is visible through the other side of the display device;
• operate in a color mode to present a displayed image according to data signals received through data lines;
• and
• operate in a dark mode to display a black image.