Filter for plasma display panel and method of manufacturing the same
First Claim
Patent Images
1. A filter for a plasma display panel, comprising:
- a substrate;
a conductive material pattern formed on the substrate;
a negative photoresist pattern, patterned on the substrate on portions not covered by the conductive material pattern to complement the conductive material pattern, the negative photoresist pattern comprising a pigment and a dye that cuts off light in a specific wavelength range, as well as a material that prevents external light from being reflected; and
a plated mesh formed on a conductive material pattern.
2 Assignments
0 Petitions
Accused Products
Abstract
A filter for a plasma display panel and a method of manufacturing the novel filter. The filter is made up of a transparent substrate, a patterned conductive material formed on one side of the substrate, a negative photoresist with additives patterned to complement the metal pattern, the additives including a dye, a pigment and an additive to prevent reflection of external light. The method includes forming the metal pattern on the substrate, and using the metal pattern as a photo mask for patterning a layer of photoresist to complement the metal pattern.
-
Citations
22 Claims
-
1. A filter for a plasma display panel, comprising:
-
a substrate;
a conductive material pattern formed on the substrate;
a negative photoresist pattern, patterned on the substrate on portions not covered by the conductive material pattern to complement the conductive material pattern, the negative photoresist pattern comprising a pigment and a dye that cuts off light in a specific wavelength range, as well as a material that prevents external light from being reflected; and
a plated mesh formed on a conductive material pattern. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method of manufacturing a filter for a plasma display panel, the method comprising the steps of:
-
coating an entire surface of a substrate with a layer of a conductive material;
forming a predetermined positive photoresist pattern on the conductive material by applying the photoresist, exposing the photoresist and developing the exposed photoresist;
etching exposed conductive material;
removing said patterned positive photoresist leaving a patterned conductive material on the substrate;
coating said entire surface of the substrate having the patterned conductive material with a layer of negative photoresist that comprises a dye and a pigment that cuts off light in a specific wavelength range, the negative photoresist further comprising a material preventing external light from being reflected;
exposing the negative photoresist by illuminating said substrate from a side opposite from said surface containing said patterned conductive layer and the negative photoresist;
developing the exposed negative photoresist to form a pattern exposing said patterned conductive material; and
forming a plated mesh on the exposed conductive material pattern by electrical plating. - View Dependent Claims (8, 9, 10)
-
-
11. A method for making a filter for a plasma display panel, comprising the steps of:
-
forming a patterned layer of a conductive material on one side of a transparent substrate;
applying a layer of negative photoresist on said patterned side of said substrate;
exposing a pattern in said negative photoresist by illuminating a side of said substrate opposite said patterned side;
developing said negative photoresist exposing only portions on said one side of said substrate patterned by the conductive material; and
increasing the thickness of said conductive material on said one side of said substrate by electroplating. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. A filter for a plasma display, comprising:
-
a substrate that is transparent to light;
a conductive mesh pattern formed on one side of the substrate; and
a non conductive material disposed on said one side of said substrate at locations absent said conductive mesh. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification