REFLECTIVE POLARIZING PLATE, DISPLAY DEVICE INCLUDING THE POLARIZING PLATE AND METHOD OF MANUFACTURING THE POLARIZING PLATE
First Claim
1. A reflective polarizing plate comprising:
- a first base substrate having opposed first and second sides facing respective first and second opposed directions;
a polarizing area portion disposed on the first base substrate and having a multi-layered structure including a plurality of linear wire grid strips, the wire grid strips being spaced apart from each other such that linearly polarized light can pass through the spacings; and
a reflective/blocking area portion also disposed on the first base substrate and laterally spaced apart from the polarizing area portion, the reflective/blocking area portion being configured to reflect back to a light sourcing mechanism, light that is incident upon the reflective/blocking area portion from the first direction and to block reflection of light that is incident upon the reflective/blocking area portion from the opposed second direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A reflective polarizing plate is monolithically integrated on a surface of a base layer of a display device. The polarizing plate comprises a polarizing area portion and a reflective/blocking area portion, both having a multi-layered structure. The polarizing area portion is patterned to have a plurality of spaced apart reflective wire grid strips. The reflective/blocking area portion is configured to reflect all light incident thereon from a predetermined direction (where that light would not otherwise be used) and to direct the reflected light back to a light providing source where the light can be recycled for other use. Therefore, a brightness and efficiency of the display device is improved.
23 Citations
20 Claims
-
1. A reflective polarizing plate comprising:
-
a first base substrate having opposed first and second sides facing respective first and second opposed directions; a polarizing area portion disposed on the first base substrate and having a multi-layered structure including a plurality of linear wire grid strips, the wire grid strips being spaced apart from each other such that linearly polarized light can pass through the spacings; and a reflective/blocking area portion also disposed on the first base substrate and laterally spaced apart from the polarizing area portion, the reflective/blocking area portion being configured to reflect back to a light sourcing mechanism, light that is incident upon the reflective/blocking area portion from the first direction and to block reflection of light that is incident upon the reflective/blocking area portion from the opposed second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of manufacturing a polarizing plate, the method comprising:
-
providing a reflecting layer and an anti-reflecting layer sequentially on a base substrate layer, the base substrate layer having opposed first and second sides facing respective first and second opposed directions; and patterning the reflecting layer and the anti-reflecting layer to thereby provide a polarizing area portion and a reflective/blocking area portion, the polarizing area portion including a plurality of wire grid strips, the wire grid strips being spaced apart from each other by a predetermined interval, the reflective/blocking area portion being laterally spaced apart from the polarizing area portion and the reflective/blocking area portion providing a light reflecting function for light incident thereupon from one of the first and second directions. - View Dependent Claims (13, 14, 15)
-
-
16. A display device comprising:
-
an array substrate comprising a first polarizing portion, a first base substrate disposed on the first polarizing portion and a thin film transistor disposed on the first base substrate; and an opposite substrate comprising a second base substrate facing the first base substrate, a second polarizing portion of a multi-layered structure including a plurality of wire grid strips, the wire grid strips being spaced apart from each other, the second polarizing portion being disposed under of the second base substrate and having a reflective/blocking area portion spaced apart from the wire grid strips, the reflective/blocking area portion disposed under of the second base substrate. - View Dependent Claims (17, 18, 19, 20)
-
Specification