Polarizing plate and liquid crystal display device

A polarizing plate comprising:

• a first protective film, a polarizer, and a second protective film in this order,
• wherein the first protective film is a film containing a synthetic polymer, and has a thickness of 30 μm or less and an elastic modulus in a TD direction of 2.0 GPa to 2.5 GPa,
• the polarizer has a thickness of 20 μm, and
• the second protective film has an evaluation value A represented by Equation (2′) of 5.7 to 9.0:
• Evaluation value A=elastic modulus (GPa) of the second protective film in the TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (μm) of the second protective film/thickness (μm) of the first protective film)2 Equation (2′).

A polarizing plate comprising:

• a first protective film, a polarizer, and a second protective film in this order,
• wherein the first protective film is a film containing a synthetic polymer, and has a thickness of 30 μm or less and an elastic modulus in a TD direction of 2.0 GPa to 2.5 GPa,
• the polarizer has a thickness of 25 μm, and
• the second protective film has an evaluation value A represented by Equation (2′) of 6.5 to 10.0:
• Evaluation value A=elastic modulus (GPa) of the second protective film in a TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (μm) of the second protective film/thickness (μm) of the first protective film)2 Equation (2′).

A polarizing plate comprising:

• a first protective film, a polarizer, and a second protective film in this order,
• wherein the first protective film is a film containing a synthetic polymer, and has a thickness of 30 μm or less and an elastic modulus in a TD direction of 2.0 GPa to 2.5 GPa,
• the polarizer has a thickness of 30 μm, and
• the second protective film has an evaluation value A represented by Equation (2′) of 7.0 to 11.0:
• Evaluation value A=elastic modulus (GPa) of the second protective film in a TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (μm) of the second protective film/thickness (μm) of the first protective film)2 Equation (2′).