Touch panel and manufacturing method therefor
View Patent ↗Disclosed herein is a touch panel including a glass cover, a light transmitting conductive film, a flexible circuit board, a light blocking print layer, and a colored print layer.
1. A touch panel, comprising:
a glass cover having a first face side and a second face side, the first face side being an inputting face side and the second face side being opposite to the first face side;
a light transmitting conductive film formed on a second face side of said glass cover, the light transmitting conductive film configuring an input position detecting electrode in an inputting region and configuring a peripheral wiring line in a peripheral region around the inputting region;
a flexible circuit board electrically connected to an end portion of the peripheral wiring line in a mounting region existing in the peripheral region;
a light blocking print layer formed between the glass coyer and the light transmitting conductive film in the peripheral region so as to overlap the mounting region when viewed from the first face side of the glass cover; and
a colored print layer formed on the second face side of said glass cover so as to sandwich the peripheral wiring line between the light blocking print layer and the colored print layer in the mounting region.
2. The touch panel according to claim 1 , wherein said light blocking print layer has a thickness smaller than that of said colored print layer.
3. The touch panel according to claim 1 , wherein said light blocking print layer has a thickness smaller than 10 μm.
4. The touch panel according to claim 1 , wherein said colored print layer partially overlaps with said light blocking print layer.
5. The touch panel according to claim 4 , wherein said colored print layer covers a portion of said flexible circuit board which overlaps with said glass cover.
6. The touch panel according to claim 4 , wherein said colored print layer partially overlaps with said light blocking print layer without overlapping with said flexible circuit board.
7. The touch panel according to claim 1 , wherein said glass cover is made of tempered glass.
8. A manufacturing method for a touch panel, comprising the steps of:
preparing a glass cover having a first face side and a second face side, the first face side being an inputting face side and the second face side being opposed to the first face side;
forming, on the second face side of the glass cover, a light transmitting conductive film which configures an input position detecting electrode in an inputting region and configures a peripheral wiring line in a peripheral region around the inputting region;
connecting electrically a flexible circuit board to an end portion of the peripheral wiring line in a mounting region existing in the peripheral region;
forming, prior to the light transmitting conductive film forming step, a light blocking print layer between the glass coyer and the light transmitting conductive film in the peripheral region so as to overlap the mounting region when viewed from the first face side of the glass cover; and
forming, after the light transmitting conductive film forming step, a colored print layer on the second face side of said glass cover so as to sandwich the peripheral wiring line between the light blocking print layer and the colored print layer in the mounting region.