Optical display device module and optical display device comprising same

An optical display module comprising:

• an optical display panel;
• and a first polarizer, a first retardation layer and a second retardation layer sequentially stacked, wherein the first retardation layer and the second retardation layer are configured together as an optical compensation structure;
• wherein the optical display panel comprises a layer comprising an image display medium, and
• wherein the second retardation layer is directly formed on an inner substrate of the optical display panel coated on a surface inside the optical display panel and has a thickness of 0.5 μm to 2 μm;
• a slow axis of the first retardation layer and a slow axis of the second retardation layer are each aligned at 0° with respect to a light absorption axis of the first polarizer;
• the second retardation layer comprises a positive A retardation layer having a degree of biaxiality (NZ) of 1.0 and an in-plane retardation (Re) of 90 nm to 110 nm at a wavelength of 550 nm;
• and
• the first retardation layer comprises a positive B retardation layer having a degree of biaxiality (NZ) of −0.6 to −0.2 and an in-plane retardation (Re) of 60 nm to 80 nm at a wavelength of 550 nm,
• wherein the first retardation layer is formed of a material having negative (−) birefringence,
• wherein the material having negative (−) birefringence comprises at least one selected from among a non-modified styrene based resin, a modified styrene based resin, a maleimide based resin, and a fumaric acid ester based resin, wherein the first retardation layer comprises a film comprising a cyclic olefin polymer or a cyclic olefin copolymer and subjected to TD uniaxial stretching.