1. A conductive polarizer for a liquid crystal display, the conductive polarizer comprising:
a protective layer;
an adhesive layer deposited on the protective layer;
a lower support layer deposited on the adhesive layer;
a polarizing layer deposited on the lower support layer;
an upper support layer deposited on the polarizing layer; and
an anti-glareanti-static layer deposited on the upper support layer, the anti-glareanti-static layer including an antimony tin oxide layer formed at an upper surface thereof with a conductive polymer pattern for inducing static electricity and an anti-reflective layer formed on the antimony tin oxide layer including the conductive polymer pattern, silica particles being distributed over a whole area of the anti-reflective layer.
2. The conductive polarizer as claimed in claim 1, wherein the conductive polymer pattern includes one selected from the group consisting of polyacetylene and polypyrrole.
3. The conductive polarizer as claimed in claim 1, wherein the conductive polymer pattern is formed with a triangular pyramid shape, a quadrangular pyramid shape, a conical shape, or cylindrical shape.
4. A conductive polarizer for a liquid crystal display, the conductive polarizer comprising:
a protective layer;
an adhesive layer deposited on the protective layer;
a lower support layer deposited on the adhesive layer;
a polarizing layer deposited on the lower support layer;
an upper support layer deposited on the polarizing layer; and
an anti-glareanti-static layer deposited on the upper support layer, the anti-glareanti-static layer including an antimony tin oxide layer formed at an upper surface thereof with an antimony tin oxide pattern for inducing static electricity and an anti-reflective layer formed on the antimony tin oxide layer including the antimony tin oxide pattern, silica particles being distributed over a whole area of the anti-reflective layer, wherein the antimony tin oxide pattern is formed with a triangular pyramid shape, a quadrangular pyramid shape, a conical shape, or a cylindrical shape.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A ball end mill comprising a cutting blade formed of a polycrystalline hard sintered material containing 20 to 95 vol % of cubic boron nitride, said cutting blade having a ridge formed into a curve having a radius of curvature of 5 to 30 m, a flank and a rake face or a negative land of said cutting blade connecting smoothly with said ridge with said radius of curvature, said ridge having a surface roughness of 0.1 to 1.0 m in terms of 10-point average roughness (Rz).
2. The ball end mill as claimed in claim 1 wherein the flank and the rake face or the negative land of said cutting blade has a surface roughness of 0.1 to 0.5 m in terms of 10-point average roughness (RZ).
3. The ball end mill as claimed in claim 1 or 2 wherein the wedge angle between the flank and the rake face or between the flank and the negative land of said cutting blade is 65 to 125.
4. The ball end mill as claimed in claim 1 wherein said polycrystalline hard sintered material contains 20 to 95 vol % of cubic boron nitride, said cubic boron nitride having an average particle diameter of 0.01 to 5 m.
5. The ball end mill as claimed in any of claims 1-4 wherein a coating layer is formed on the surface of said cutting blade, said coating layer comprising at least one compound selected from a nitride, carbide, oxide and a solid solution thereof of at least one element selected from the group consisting of elements in the 4a, 5a and 6a groups in the periodic table and Al, Si and B, or at least one of metal selected from said group.
6. The ball end mill as claimed in any of claims 1-5 wherein said ball end mill body is formed of a cemented carbide or a sintered superheavy alloy, and that said shank portion has such a shape as to be shrink fitted into a collet holder.