TW201349063A - Surface capacitive touch signal strengthening method - Google Patents

Abstract

The present invention provides a surface capacitive touch signal strengthening method, which includes the following steps: (a) providing a mobile device; (b) configuring the mobile device on a power circuit; (c) providing a sensor bar on the touch panel of the mobile device; (d) providing a ground bar (GND bar) on the touch panel of the mobile device; and (e) enabling the sensor bar and the ground bar to be coupled with a larger coupling capacitance, so as to enlarge the current variance and thus enlarge the sensing signal.

Description

Surface capacitive touch signal enhancement method

The invention relates to a surface capacitive touch signal enhancement method applied on a mobile device, which solves the defects that the signal is too small and unstable when the sensor bar of the touch panel is touched; The extension of the strips and ground strips increases the fishbone strips or alternately to increase the parallel area to increase the coupling capacitance and thereby enhance the signal.

Generally, the technique of the sensor bar is known to be applied to a mobile device, and a sensor bar is connected to a finger via a finger to output a signal, and a signal is read from both ends of the bar. The position of the finger touch is determined by judging the ratio of the signal size at both ends of the bar. However, the prior art is a closed power supply circuit when the finger is touched, because the human body and the ground GND of the mobile device are not at the same potential. When the finger touches the sensor bar, the coupling capacitance generated is too small, so that the current change amount is too small, and the signal is too small to correctly determine the touch position.

The invention is a method for enhancing a surface capacitive touch signal, the method steps comprising: (a) providing a mobile device; (b) placing the mobile device in a power circuit; and (c) providing one of the mobile devices a sensor bar on the panel; (d) simultaneously providing a ground strip (GND bar) on the touch panel of the mobile device; and (e) causing the sensing strip and the ground strip A large coupling capacitor can be coupled to increase the amount of current change, so that the detection signal becomes larger.

Preferably, the mobile device is a handheld mobile device.

Preferably, the power circuit is a closed power circuit.

Preferably, the touch panel is a capacitive touch panel.

Preferably, the sensing strip is used to sense a touch signal of a finger.

Preferably, the ground strip is a ground strip with a fixed reference potential.

Preferably, the manner of increasing the coupling capacitance is to extend the sensing strip or the ground strip each out of the fishbone strip to increase the coupling capacitance.

Preferably, the manner of increasing the coupling capacitance is to alternately configure the strips of the sensing strip or the ground strip to increase the coupling capacitance of the parallel area.

Please refer to the first figure, which is the basic shape and configuration diagram of the invention of the present invention, including: a ground strip (GND bar, 101), a sensor strip (Sensor bar, 102), a left sensing line (sensor) Lines, 103), a right sensor line (104) and a ground line (GND lines, 105). The first figure shows the basic form of the invention. The touch panel is made into a sensor bar (101) of the first figure and a ground strip (Gnd bar, 102). The sensor lines (103, 104) on the left and right sides of the strip are connected to the panel fpc connector and then connected to the controller. All the ground strips (Gnd bar, 102) are connected together and then connected. The grounding (Gnd) of the mobile device, when the finger touches the sensor bar (102) of the panel, it also touches the grounding strip (Gnd bar, 101). The sensor strip (Sensor bar, 101) and Between the grounding strips (Gnd bar, 102), a large coupling capacitance is generated by the finger touch, thereby coupling the capacitor, and the sensor's left and right sensing lines (sensor lines, 103, 104) can be used in the sensing strip. A large current change is detected on the sensor bar (101). At this time, the controller uses the detected sensor bar (Sensor bar, 101) to determine the signal intensity ratio to judge the clearer touch. position.

Please refer to the second figure, which is the first embodiment of the present invention, including: a ground strip (GND bar, 201), a sensor strip (Sensor bar, 202), a fish strip for extending the strip. a piece (203) and a fish strip (204) extending from the ground strip; the reinforcing method is to extend the sensor bar (202) to increase the fishbone strip (204) and the ground strip (GND bar, 201) Extending the fishbone strip (203), when the finger touches the sensor strip (Sensor bar, 202), the coupling capacitance sensing area is large, so the coupling capacitance is also large.

Please refer to the third figure, which is the embodiment 2 of the invention, including: a ground strip (GND Bar, 301), a sensor bar (302), a fish strip (303) extending from a ground strip, and a fishbone strip (304) extending from the strip; another reinforcement method is The sensor bar (302) extends to increase the fishbone strip (304) and the ground strip (GND bar, 301) to increase the fishbone strip (303); as shown in the third figure, the fishbone strip (303, 404) Interactive configuration mode, this form increases the parallel area of the sensor strip (302) and the ground strip (GND bar, 301). When the finger touches the sensor strip (Sensor bar, 302), the coupling capacitor senses The larger the area, the larger the coupling capacitance, and the resulting current variation is better than the second figure.

Please refer to the fourth figure, which is a schematic diagram of the sensing strip and the grounding strip of the invention, including: a schematic diagram of the sensing strip and the grounding strip (401), a schematic diagram of the sensing component (402), and a sensing strip Schematic diagram (403) and a schematic diagram of grounding strips (404); comprehensively, the above description shows that the invention of the present invention not only has its superior effects, but also is difficult for those who are familiar with the art, and has been embodied and never seen in the country. The external publications have been used publicly, and the invention has three patents that are realistic, progressive and industrially usable.

The selection and description of the above-described embodiments are purely for the purpose of explaining the principles of the present invention and its preferred mode of practice, so that those skilled in the art will be able to grasp the variations of the different applications for the particular purpose. Any person who is familiar with the art may, however, make a number of modifications or changes, such as only non-substantial changes, which, although achieving the same effect, are within the scope of the invention of the present invention and will explain the scope of the patent application of the present invention. Of course covered.

101‧‧‧ Grounding strip (GND bar)

102‧‧‧Sensor strips (Sensor bar)

103‧‧‧left sensor lines

104‧‧‧Surface sensor lines

105‧‧‧GND wire (GND lines)

201‧‧‧ Grounding strip (GND bar)

202‧‧‧Sensor strip

203‧‧‧Skin strips extended by sensor strips

204‧‧‧Foot strips extended by ground strips

301‧‧‧ Grounding strip (GND bar)

302‧‧‧Sensor strips (Sensor bar)

303‧‧‧ Fish strips with grounding strips extending

304‧‧‧Skin strips extended by sensor strips

401‧‧‧ Schematic diagram of sensor strip and ground strip configuration

402‧‧‧Sensor component schematic

403‧‧‧Induction strip diagram

404‧‧‧ Grounding strip diagram

The first figure is a schematic diagram of the basic fabrication shape and configuration of the invention of the present invention.

The second figure is the embodiment 1 of the invention of the present invention.

The third figure is the embodiment 2 of the invention of the present invention.

The fourth figure is a schematic diagram of the sensing strip and the grounding strip of the invention of the present invention.

101‧‧‧ Grounding strip (GND bar)

102‧‧‧Sensor strips (Sensor bar)

103‧‧‧left sensor lines

104‧‧‧Surface sensor lines

105‧‧‧GND wire (GND lines)

Claims (8)

A surface capacitive touch signal enhancement method, the method steps comprising: (a) providing a mobile device; (b) placing the mobile device in a power circuit; and (c) providing a touch panel on the mobile device a sensor bar; (d) simultaneously providing a ground strip (GND bar) on the touch panel of the mobile device; and (e) enabling the sensor strip to be coupled to the ground strip A larger coupling capacitor increases the amount of current change to make the detection signal larger. The surface capacitive touch signal enhancement method according to claim 1, wherein the mobile device is a handheld mobile device. The surface capacitive touch signal enhancement method according to claim 1, wherein the power circuit is a closed power circuit. The surface capacitive touch signal enhancement method according to the first aspect of the invention, wherein the touch panel is a capacitive touch panel. The surface capacitive touch signal enhancement method of claim 1, wherein the sensing strip is used to sense a touch signal of a finger. The surface capacitive touch signal enhancement method according to claim 1, wherein the ground strip is a ground strip with a fixed reference potential. The surface capacitive touch signal enhancement method according to claim 1, wherein the method of increasing the coupling capacitance is to extend the sensing strip or the ground strip to each of the fishbone strips to increase Coupling capacitor. The surface capacitive touch signal enhancement method according to claim 1, wherein the method of increasing the coupling capacitance is to alternately configure the fish strips of the sensing strip or the ground strip to increase parallel The coupling capacitance of the area.