Pixel for a fringe field switching reflective and transflective liquid crystal display
OwnerHong-Da Liuinventor
Life of this patent
Estimating the term…
Abstract
By employing an ultra-micro scattering layer with a top surface in a nano-scale roughness resulted from the crystallization or the property of the material within the ultra-micro scattering layer in a pixel for a fringe field switching liquid crystal display, the mask steps to manufacture the liquid crystal display and the cost therefore are reduced. The nano-scale roughness of the top surface on the ultra-micro scattering layer results in larger scattering angle and smooth distribution for the scattering effect. Accordingly, the reflectivity will not vary violently with the viewing angle, and excellent anti-glare effect is obtained also.
Claims48
A pixel of a fringe field switching reflective liquid crystal display, comprising:
- an ultra-micro scattering layer on a substrate, having a first top surface in a nano-scale roughness resulted from a property of a material within the ultra-micro scattering layer;
- a metal layer on the ultra-micro scattering layer, conformal to the first top surface to thereby form a second top surface substantially in the nano-scale roughness;
- a reflective layer on the metal layer, conformal to the second top surface to thereby form a reflective surface substantially in the nano-scale roughness;
- an optical stack above the reflective surface;
- and
- a layer of liquid crystal with a horizontal rubbing direction, arranged between the reflective surface and the optical stack.
A pixel of a fringe field switching transflective liquid crystal display, comprising:
- an ultra-micro scattering layer on a substrate, having a first top surface in a nano-scale roughness resulted from a property of a material within the ultra-micro scattering layer;
- a partially reflective layer on the ultra-micro scattering layer, conformal to the first top surface to thereby form a second top surface substantially in the nano-scale roughness;
- an optical stack above the second top surface;
- and
- a layer of liquid crystal with a horizontal rubbing direction, arranged between the partially reflective layer and the optical stack.
Dependencies are inferred from the claim text.