Polarizing plate and optical display device comprising same

A polarizing plate comprising:

• a polarizer;
• and a protective layer formed on at least one surface of the polarizer,
• the polarizing plate comprising a first region and a second region within an image display region,
• wherein the first region and the second region have different light transmittances at the same wavelength,
• wherein the first region has a light transmittance of about 50% to about 80%, a color value a* of about −13 to about 2, and a color value b* of about 1 to about 35, wherein the combination of the light transmittance and the color values allows an image to be consecutively displayed together with the second region while allowing an image to be more clearly photographed when using an image sensor;
• and
• wherein the first region has a degree of polarization of 25% to about 80%, and wherein the degree of polarization in combination with the light transmittance and the color values enables the first region to perform both an image display function and an image photographing function.