Patent ID: 8098350
Filing Date: 2012-01-17
Classification: G02B,G02F

Abstract:
1. A display comprising: an image display device that displays an image; and a view angle control element that is laminated on the image display device to control a view angle of the image display device, wherein the view angle control element comprises: a first shielding layer that includes an optical element having birefringence and at least one polarizing plate including an outgoing-side polarizing plate provided on an outgoing side of the optical element, and prevents light in a predetermined wavelength region that has been incident at a first angle or more from being transmitted through the outgoing-side polarizing plate by using a phase difference imparted by the optical element; and at least one auxiliary shielding layer that includes an optical element having birefringence and at least one polarizing plate including an outgoing-side polarizing plate provided on an outgoing side of the optical element, and prevents light in the predetermined wavelength region that has been incident at a second angle or more, which is smaller than the first angle, from being transmitted through the outgoing-side polarizing plate by using a phase difference imparted by the optical element, and the first shielding layer and the auxiliary shielding layer block light in the predetermined wavelength region that has been incident on the view angle control element at the second angle or more.