| 摘要 |
PROBLEM TO BE SOLVED: To achieve cost reduction, while satisfying both an improvement in light emission efficiency and a reduction in external light reflection by simplifying a driving circuit of a liquid crystal element. SOLUTION: The image display device includes: an organic EL panel having self-luminous type organic EL display elements each having a reflection electrode; a 1/4λwavelength plate; and a variable circular polarization means formed of the liquid crystal element for controlling the linearly polarized light in accordance with a signal, wherein the 1/4λwavelength plate and the circular polarization means are disposed in order from the side of the organic EL display elements on the exit surface side of the organic EL display elements. The linear polarization function of the liquid crystal element is reduced in synchronism with a period where the organic EL display elements emit the light, meanwhile, the linear polarization function of the liquid crystal element is enhanced in synchronism with a period where the organic EL display elements are turned off. COPYRIGHT: (C)2011,JPO&INPIT |
