Retardation plate and circularly polarizing plate

A circularly polarizing plate comprising a retardation plate comprising at least a retardation plate 1 laminated to a retardation plate 2, and a polarizing plate laminated on to the retardation plate,

• at least one of the retardation plate 1 and the retardation plate 2 comprising a polymer of a polymerizable liquid crystal composition,
• a phase difference at a wavelength of 550 nm of the retardation plate 1 being greater than a phase difference at a wavelength of 550 nm of the retardation plate 2,
• a phase difference ratio represented by Re (450)/Re (550), which is a ratio of a phase difference Re (450) at a wavelength of 450 nm to a phase difference Re (550) at a wavelength of 550 nm of one of the retardation plate 1 and the retardation plate 2, being 0.95 or less,
• the phase difference ratio represented by Re (450)/Re (550) of the other retardation plate being 1.05 or less,
• the phase difference ratio of the retardation plate 1 and the phase difference ratio of the retardation plate 2 each is 0.95 or less, and
• wherein a slow axis of one of the retardation plate 1 or the retardation plate 2 has an angle of 5° to 25° and a slow axis of the other one of the retardation plate 1 or the retardation plate 2 has an angle of 65° to 85° based on a direction of a transmission axis of the polarizing plate, and
• the slow axis of the retardation plate having an angle of 5° to 25° is located between the polarizing plate in the direction of the transmission axis and the slow axis of the retardation plate having an angle of 65° to 85°.