| 摘要 |
PROBLEM TO BE SOLVED: To allow a reflection type liquid crystal display device to reduce the loss of diffusion reflected light and to brighten a white display by the diffusion reflected light. SOLUTION: A transmission axis 29a of a polarizing plate 29 is made nearly parallel to an oriented processing direction 24a of an oriented film 24 of a surface side. A reflection polarizing plate 30 is provided with the transmission axis 30p and a reflection axis 30s nearly orthogonally intersected with each other, and the transmission axis 30p between them is made nearly parallel to the oriented processing direction 25a of the oriented film 25 of a rear surface side. Then, in an off state, linear polarized light made incident transmitting through the polarizing plate 29 from the surface side is polarized by nearly 90 deg. in the twist direction 28a of a liquid crystal 28 in a process transmitting through a liquid crystal cell 21, and then, it transmits through the reflection polarizing plate 30, and then, is diffusion reflected by a diffusion reflection plate 31. Although the polarizing state of this diffusion reflected light is lost, the major part of the light are transmitted through the reflection polarizing plate 30 and emitted to the surface side finally by the reflective action of the reflection polarizing plate 30 and the diffusion reflective action of the diffusion reflection plate 31. |
