Sensing module and wearable device having same

1. A sensing module, comprising:

sensors including:

a plurality of interconnected first sensing electrodes, wherein the plurality of first sensing electrodes are defined into a plurality of first sensing groups;

a plurality of second sensing electrodes disposed in alternation with the first sensing electrodes, wherein the plurality of second sensing electrodes are defined into a plurality of second sensing groups; wherein each of the first sensing electrodes has a first width defined between two opposite corners of the first sensing electrode, each of the second sensing electrodes has a second width defined between two opposite corners of the second sensing electrode, and the first width and the second width are less than a predetermined width; wherein the first sensing groups are arranged along a first direction, and the second sensing groups are arranged along a second direction; the first direction intersects with the second direction; and

a driving chip respectively connected to at least some of the first sensing groups and at least some of the second sensing groups, wherein the driving chip has a fingerprint recognition function and a touch function;

wherein the sensor further includes a plurality of first connecting wires connecting the first sensing electrodes with the driving chip, a plurality of second connecting wires connecting the second sensing electrodes with the driving chip, and a connecting bridge; and adjacent two of the second sensing electrodes are connected via the connecting bridge; and

the first connecting wires, the second connecting wires, and the connecting bridge are disposed on a same layer and are made of same material.

2. The sensing module as claimed in claim 1 , wherein the first width and the second width each range from 50 μm to 100 μm.

3. The sensing module as claimed in claim 1 , further comprising:

a first control circuit including:

a plurality of first control groups including a plurality of first control units corresponding to the first sensing groups; and

the first connecting wires, wherein the first connecting wires correspond to the first control groups, and each of the first control groups is connected to the driving chip via a corresponding one of the first connecting wires;

wherein the first control unit is inputted with first control signals and is respectively connected to a corresponding one of the first sensing groups and a corresponding one of the first connecting wires; wherein a total number of the first connecting wires is less than a total number of the first sensing groups.

4. The sensing module as claimed in claim 3 , wherein each of the first control groups corresponds to one of the first connecting wires.

5. The sensing module as claimed in claim 3 , wherein the first control unit includes a first switch component, wherein an input end of the first switch component is connected to a corresponding one of the first sensing groups, an output end of the first switch component is connected to a corresponding one of the first connecting wires, and a control end of the first switch component is inputted with the first control signals.

6. The sensing module as claimed in claim 3 , further comprising:

a second control circuit including:

a plurality of second control groups including a plurality of second control units corresponding to the second sensing groups; and

the second connecting wires, wherein the second connecting wires correspond to the second control groups, and each of the second control groups is connected to the driving chip via a corresponding one of the second connecting wires;

wherein the second control unit is inputted with second control signals and is respectively connected to a corresponding one of the second sensing groups and a corresponding one of the second connecting wires; wherein a total number of the second connecting wires is less than a total number of the second sensing groups.

7. The sensing module as claimed in claim 6 , wherein the second control unit includes a second switch component, wherein an input end of the second switch component is connected to a corresponding one of the second sensing groups, an output end of the second switch component is connected to a corresponding one of the second connecting wires, and a control end of the second switch component is inputted with the second control signals.

8. The sensing module as claimed in claim 6 , wherein the driving chip is respectively connected to some of the first sensing groups and some of the second sensing groups in response to the sensing module in a touch mode; and

the driving chip is respectively connected to each of the first sensing groups and each of the second sensing groups in response to the sensing module in a fingerprint recognition mode.

9. The sensing module as claimed in claim 8 , wherein a number of the first sensing groups electrically connected to the driving chip is less than or equal to half of the total number of the first sensing groups, and a number of the second sensing groups electrically connected to the driving chip is less than or equal to half of the total number of the second sensing groups in response to the sensing module in the touch mode.

10. A wearable device, comprising a sensing module including:

sensors including:

a plurality of interconnected first sensing electrodes, wherein the plurality of first sensing electrodes are defined into a plurality of first sensing groups;

a plurality of second sensing electrodes disposed in alternation with the first sensing electrodes, wherein the plurality of second sensing electrodes are defined into a plurality of second sensing groups; wherein each of the first sensing electrodes has a first width defined between two opposite corners of the first sensing electrode, each of the second sensing electrodes has a second width defined between two opposite corners of the second sensing electrode, and the first width and the second width are less than a predetermined width; wherein the first sensing groups are arranged along a first direction, and the second sensing groups are arranged along a second direction; the first direction intersects with the second direction; and

a driving chip respectively connected to at least some of the first sensing groups and at least some of the second sensing groups, wherein the driving chip has a fingerprint recognition function and a touch function;

wherein the wearable device comprises a display panel disposed beneath the sensors;

the display panel comprises a plurality of third switch components; and the third switch components, first switch components, and second switch components are disposed on a same layer.

11. The wearable device as claimed in claim 10 , wherein the first width and the second width each range from 50 μm to 100 μm.

12. The wearable device as claimed in claim 10 , wherein the sensing module further includes:

a first control circuit including:

a plurality of first control groups including a plurality of first control units corresponding to the first sensing groups; and

a plurality of first connecting wires corresponding to the first control groups, wherein each of the first control groups is connected to the driving chip via a corresponding one of the first connecting wires;

wherein the first control unit is inputted with first control signals and is respectively connected to a corresponding one of the first sensing groups and a corresponding one of the first connecting wires; wherein a total number of the first connecting wires is less than a total number of the first sensing groups.

13. The wearable device as claimed in claim 12 , wherein each of the first control groups corresponds to one of the first connecting wires.

14. The wearable device as claimed in claim 12 , wherein the first control unit includes a first switch component, wherein an input end of the first switch component is connected to a corresponding one of the first sensing groups, an output end of the first switch component is connected to a corresponding one of the first connecting wires, and a control end of the first switch component is inputted with the first control signals.

15. The wearable device as claimed in claim 12 , wherein the sensing module further includes:

a second control circuit including:

a plurality of second control groups including a plurality of second control units corresponding to the second sensing groups; and

a plurality of second connecting wires corresponding to the second control groups, wherein each of the second control groups is connected to the driving chip via a corresponding one of the second connecting wires;

wherein the second control unit is inputted with second control signals and is respectively connected to a corresponding one of the second sensing groups and a corresponding one of the second connecting wires; wherein a total number of the second connecting wires is less than a total number of the second sensing groups.

16. The wearable device as claimed in claim 15 , wherein the second control unit includes a second switch component, wherein an input end of the second switch component is connected to a corresponding one of the second sensing groups, an output end of the second switch component is connected to a corresponding one of the second connecting wires, and a control end of the second switch component is inputted with the second control signals.

17. The wearable device as claimed in claim 15 , wherein the driving chip is respectively connected to some of the first sensing groups and some of the second sensing groups in response to the sensing module in a touch mode; and

the driving chip is respectively connected to each of the first sensing groups and each of the second sensing groups in response to the sensing module in a fingerprint recognition mode.

18. The wearable device as claimed in claim 17 , wherein a number of the first sensing groups electrically connected to the driving chip is less than or equal to half of the total number of the first sensing groups and a number of the second sensing groups electrically connected to the driving chip is less than or equal to half of the total number of the second sensing groups in response to the sensing module in the touch mode.