Patent ID: 8736794
Filing Date: 2014-05-27
Classification: G02F,H01L

Abstract:
1. A light-emitting device comprising a light-emitting element and a reflective layer reflecting light emitted from the light-emitting element, said reflective layer having: a first layer constituted from a liquid crystal having a helical structure; a second layer disposed on an opposite side of said first layer from said light emitting element and constituted from a liquid crystal having a helical structure with a same twisting direction as said first layer; and a third layer interposed between said first layer and said second layer and configured to divide light transmitted through said third layer into two intrinsic polarized lights and to cause a phase difference between the two intrinsic polarized lights, wherein a light-emission wavelength region of said light-emitting element, a selective reflection wavelength region of said first layer and a selective reflection wavelength region of said second layer are at least partially overlapped, and said reflective layer is disposed on a side of said light-emitting element opposite a light emission side.