Method of fabricating touch panel
First Claim
1. A method of fabricating a touch panel, comprising:
- providing a base comprising a sensing region;
forming a first transparent conductive layer made of an amorphous metal oxide in the sensing region of the base;
patterning the first transparent conductive layer to form a patterned sensing pad layer by performing a first screen printing process using a first patterned sacrificial layer;
performing a first annealing process to transform the amorphous metal oxide of the first transparent conductive layer into a polycrystalline metal oxide;
forming a patterned insulating layer in the sensing region of the base by performing a second screen printing process;
forming a second transparent conductive layer in the sensing region of the base; and
patterning the second transparent conductive layer to form a patterned bridge line layer by performing a third screen printing process using a second patterned sacrificial layer.
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Accused Products
Abstract
A method of fabricating touch panel includes the following steps. A base is provided. A first transparent conductive layer is formed on the base. A first screen printing process is performed to form a first patterned sacrificial layer on the first transparent conductive layer, and the first patterned sacrificial layer is used to pattern the first transparent conductive layer to form a patterned sensing pad layer. A second screen printing process is carried out to form a patterned insulating layer. A second transparent conductive layer is formed on the base. A third screen printing process is performed to form a second patterned sacrificial layer, and the second patterned sacrificial layer is used to pattern the second transparent conductive layer to form a patterned bridge line layer.
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Citations
19 Claims
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1. A method of fabricating a touch panel, comprising:
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providing a base comprising a sensing region; forming a first transparent conductive layer made of an amorphous metal oxide in the sensing region of the base; patterning the first transparent conductive layer to form a patterned sensing pad layer by performing a first screen printing process using a first patterned sacrificial layer; performing a first annealing process to transform the amorphous metal oxide of the first transparent conductive layer into a polycrystalline metal oxide; forming a patterned insulating layer in the sensing region of the base by performing a second screen printing process; forming a second transparent conductive layer in the sensing region of the base; and patterning the second transparent conductive layer to form a patterned bridge line layer by performing a third screen printing process using a second patterned sacrificial layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification