TOUCH PANEL AND SYSTEM FOR DISPLAYING IMAGES UTILIZING THE SAME
An embodiment of the invention provides a touch panel, which includes a substrate, a lower conductive layer overlaying the substrate, an insulating layer overlaying the lower conductive layer, and an upper conductive layer overlaying the insulating layer. The lower conductive layer includes a plurality of first conductive patterns including a plurality of first electrodes and a plurality of first dummy patterns, wherein the first dummy patterns are electrically insulated from the first conductive patterns. The upper conductive layer includes a plurality of second conductive patterns including a plurality of second electrodes respectively overlapping the first dummy patterns and a plurality of second dummy patterns, wherein the second dummy patterns are electrically insulated from the second conductive patterns and respectively overlapping the first electrodes.
1 . A touch panel, comprising:
a substrate;
a lower conductive layer overlaying the substrate, wherein the lower conductive layer comprises:
a plurality of first conductive patterns comprising a plurality of first electrodes; and
a plurality of first dummy patterns electrically insulated from the first conductive patterns;
an insulating layer overlaying the lower conductive layer; and
an upper conductive layer overlaying the insulating layer, wherein the upper conductive layer comprises:
a plurality of second conductive patterns comprising a plurality of second electrodes respectively overlapping the first dummy patterns; and
a plurality of second dummy patterns electrically insulated from the second conductive patterns and respectively overlapping the first electrodes.
2 . The touch panel as claimed in claim 1 , wherein shapes and areas of the first electrodes and the second dummy patterns are the same.
3 . The touch panel as claimed in claim 1 , wherein shapes and areas of the second electrodes and the first dummy patterns are the same.
4 . The touch panel as claimed in claim 1 , wherein the first dummy patterns are electrically connected to the second electrodes.
5 . The touch panel as claimed in claim 1 , wherein the second dummy patterns are electrically connected to the first electrodes.
6 . The touch panel as claimed in claim 1 , wherein peripheries of the second dummy patterns extend over peripheries of the first electrodes.
7 . The touch panel as claimed in claim 6 , wherein peripheries of the first dummy patterns extend over peripheries of the second electrodes.
8 . The touch panel as claimed in claim 1 , wherein peripheries of the first electrodes extend over peripheries of the second dummy patterns.
9 . The touch panel as claimed in claim 8 , wherein peripheries of the second electrodes extend over peripheries of the first dummy patterns.
10 . The touch panel as claimed in claim 1 , wherein at least one of the first dummy patterns comprises a plurality of first sub-dummy patterns.
11 . The touch panel as claimed in claim 10 , wherein spacings between the first sub-dummy patterns equal to a smallest lateral distance between peripheries of the second electrodes and peripheries of the first electrodes.
12 . The touch panel as claimed in claim 1 , wherein at least one of the second dummy patterns comprises a plurality of second sub-dummy patterns.
13 . The touch panel as claimed in claim 12 , wherein spacings between the second sub-dummy patterns equal to a smallest lateral distance between peripheries of the second electrodes and peripheries of the first electrodes.
14 . The touch panel as claimed in claim 1 , wherein at least one of the first conductive patterns further comprises a plurality of first bridge portions electrically connected to the first electrodes to term one of the first conductive patterns.
15 . The touch panel as claimed in claim 1 , wherein at least one of the second conductive patterns further comprises a plurality of second bridge portions electrically connected to the second electrodes to form one of the second conductive patterns.
16 . The touch panel as claimed in claim 1 , wherein the first conductive patterns and the first dummy patterns are portions of a same layer.
17 . The touch panel as claimed in claim 1 , wherein the second conductive patterns and the second dummy patterns are portions of a same layer.
18 . A system for displaying images, comprising:
a display device comprising the touch panel as claimed in claim 1 .
19 . The system for displaying images as claimed in claim 18 , further comprising:
an electronic device, wherein the electronic device comprises:
the display device; and
an input element coupled to the display device and providing a signal to the display device for displaying images.
20 . The system for displaying images as claimed in claim 19 , wherein the electronic device is a mobile phone, a digital camera, a personal digital assistant, a portable computer, a personal computer, a television, a vehicle display, or a portable DVD.