Method for designing pattern of sensing channels in touch panel
A method for designing a pattern of sensing channels is provided. The method is applied to a touch panel including a plurality of electrodes and a plurality of sections of sensing channels. The electrodes are connected to a plurality of sensors for the touch panel via the sections of sensing channels. According to a minimum sensing channel width, a minimum sensing channel gap, a maximum distribution width and lengths of the sections of sensing channels, a set of rules are established. According to the set of rules, a programming process is utilized to determine respective widths of the sections of sensing channels.
1. A method for designing sensing channels, applied to a touch panel comprising a plurality of electrodes and a plurality of sensing channels, each comprising at least one section, the electrodes connected to a plurality of sensors for the touch panel via the sensing channels, the method comprising:
establishing a set of rules according to a minimum sensing channel width, a minimum sensing channel gap, a maximum distribution width and respective lengths of the sections of sensing channels; and
determining respective widths of the sections of sensing channels with a programming process according to the set of rules.
2. The method according to claim 1 , wherein the programming process minimizes an average resistance difference of the sections of sensing channels.
3. The method according to claim 1 , wherein the programming process limits the respective widths of the sections of sensing channels within a predetermined range, and minimizes an average resistance value of the sections of sensing channels.
4. The method according to claim 1 , wherein the sections of sensing channels are made of indium tin oxide (ITO).
5. The method according to claim 1 , wherein the programming process adopts a direct seeking method, a deepest descending method, a Newton type method, a conjugate direction method or a Newton approximation method.
6. A non-transitory computer-readable storage medium, storing a program code readable and executable by a processor, the program code for designing a plurality of sections of sensing channels in a touch panel, the touch panel further comprising a plurality of electrodes, the electrodes connected to a plurality of sensors for the touch panel via the sections of sensing channels; when the program code is executed by the processor, the processor executing steps of:
establishing a set of rules according to a minimum sensing channel width, a minimum sensing channel gap, a maximum distribution width and respective lengths of the sections of sensing channels; and
determining respective widths of the sections of sensing channels with a programming process according to the set of rules.
7. The non-transitory computer-readable storage medium according to claim 6 , wherein the programming process minimizes an average resistance difference of the sections of sensing channels.
8. The non-transitory computer-readable storage medium according to claim 6 , wherein the programming process limits the respective widths of the sections of sensing channels within a predetermined range, and minimizes an average resistance value of the sections of sensing channels.
9. The non-transitory computer-readable storage medium according to claim 6 , wherein the sections of sensing channels are made of ITO.
10. The non-transitory computer-readable storage medium according to claim 6 , wherein the programming process adopts a direct seeking method, a deepest descending method, a Newton type method, a conjugate direction method or a Newton approximation method.
11. A touch panel, comprising:
a plurality of electrodes; and
a plurality of sensing channels, each comprising at least one section, the plurality of the electrodes connected to a plurality of sensors via the plurality of sensing channels, a target electrode of the electrodes connected to a target sensor of the sensors via a target sensing channel of the sensing channels; the target sensing channel comprising N sections, N being an integer greater than 1; the (i+1) th section of the N sections being closer to the target electrode than the i th section, a width of the i th section being smaller than or equal to that of the (i+1) th section, i being an integral index ranging between 1 and (N−1).
12. The touch panel according to claim 11 , wherein a minimum sensing channel width, a minimum sensing channel gap, a maximum distribution width and respective lengths of the sections of sensing channels satisfy a set of rules, and an average resistance difference of the sections of sensing channels is minimized according to the set of rules.
13. The touch panel according to claim 12 , wherein the average resistance difference is minimized by a programming process that adopts a direct seeking method, a deepest descending method, a Newton type method, a conjugate direction method or a Newton approximation method.