Circuit for realizing ID identification of touch screen by using touchpad channel grounding

Abstract

The utility model relates to the technical field of electronic identification, and discloses an ID identification circuit for realizing a touch screen by using touch panel channel grounding, which comprises a ZIF connector and a touch IC chip, a first pin of the touch IC chip is electrically connected with one end of a capacitor C1111, and the other end of the capacitor C1111 is electrically connected with the ground; the first pin of the touch IC chip is connected with the first pin of the ZIF connector, the second pin of the touch IC chip is connected with the fourteenth pin of the ZIF connector, and the third pin of the touch IC chip is connected with the thirteenth pin of the ZIF connector. The electronic equipment can realize plug-and-play compatibility, which means that a user can easily replace touch screens of different manufacturers without worrying about the problem of driver or hardware compatibility, and the user experience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic identification technology, specifically to an ID recognition circuit for a touchscreen that utilizes the grounding of the touchpad channel. Background Technology

[0002] With the rapid development of technology, touchscreen technology has been widely used in various electronic devices, such as smartphones, tablets, and automotive displays. Touchscreens capture user touch input through touchpads and transmit these input signals to the touch IC for processing. However, touchpads from different manufacturers may have differences in hardware design, which poses a challenge to the compatibility of software systems. In order to enable software systems to be compatible with touchpads from different manufacturers and reduce software development and adaptation costs, the industry urgently needs an effective touchscreen ID recognition technology.

[0003] In existing technologies, touchscreens from different manufacturers may use different hardware designs and interface standards, making it difficult for electronic devices to achieve plug-and-play functionality. Customized software drivers are required for different touchscreens. Therefore, we propose an ID recognition circuit for touchscreens that utilizes the touchpad channel grounding to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an ID recognition circuit for touchscreens that utilizes touchpad channel grounding. This solves the problem that touchscreens from different manufacturers may employ different hardware designs and interface standards, making it difficult for electronic devices to achieve plug-and-play functionality and requiring customized software drivers for different touchscreens.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an ID recognition circuit for a touch screen that utilizes the touch panel channel grounding, comprising a ZIF connector and a touch IC chip;

[0006] The first pin of the touch IC chip is electrically connected to one end of capacitor C1111, and the other end of capacitor C1111 is connected to ground.

[0007] The second pin of the touch IC chip is connected to the fourteenth pin of the ZIF connector; the third pin of the touch IC chip is connected to the thirteenth pin of the ZIF connector; the fourth pin of the touch IC chip is connected to the twelfth pin of the ZIF connector; the fifth pin of the touch IC chip is connected to the eleventh pin of the ZIF connector; the sixth pin of the touch IC chip is connected to the tenth pin of the ZIF connector; the seventh pin of the touch IC chip is connected to the ninth pin of the ZIF connector; the eighth pin of the touch IC chip is connected to the eighth pin of the ZIF connector; the ninth pin of the touch IC chip is connected to the seventh pin of the ZIF connector; the tenth pin of the touch IC chip is connected to the sixth pin of the ZIF connector; the eleventh pin of the touch IC chip is connected to the fifth pin of the ZIF connector; the twelfth pin of the touch IC chip is connected to the fourth pin of the ZIF connector; the thirteenth pin of the touch IC chip is connected to the third pin of the ZIF connector; and the fourteenth pin of the touch IC chip is connected to the second pin of the ZIF connector.

[0008] The fifteenth pin of the touch IC chip is electrically connected to one end of capacitor C1112 and one end of resistor R1108. The other end of resistor R1108 is electrically connected to one end of resistor R1109 and port CTP VDD.

[0009] The 21st pin of the touch IC chip is connected to ground.

[0010] The sixteenth pin of the touch IC chip is electrically connected to the other end of resistor R1109, and one end of capacitor C1110 is also electrically connected to it.

[0011] The seventeenth pin of the touch IC chip is electrically connected to one end of R1112 and one end of resistor R1111, and the other end of resistor R1112 is electrically connected to port TP RST.

[0012] The twentieth pin of the touch IC chip is electrically connected to one end of resistor R1124 and one end of resistor R1110. The other ends of resistors R1110 and R1111 are both connected to port VLD06 1V8. The other end of resistor R1124 is electrically connected to port TP INT.

[0013] The eighteenth pin of the touch IC chip is electrically connected to one end of a resistor R1122, and the other end of the resistor R1122 is electrically connected to the port TP I2C2 SCL.

[0014] The nineteenth pin of the touch IC chip is electrically connected to one end of a resistor R1123, and the other end of the resistor R1123 is electrically connected to the port TP I2C2 SDA. The first and fifteenth pins of the ZIF connector are both connected to ground.

[0015] Preferably, the other ends of capacitors C1112 and C1110 are both connected to ground.

[0016] Preferably, the ZIF connector is model number OK-F302-15115-A.

[0017] Preferably, the touch IC chip is model BL6130Y-QPN-20-3X3.

[0018] Beneficial effects

[0019] This invention provides an ID recognition circuit for a touchscreen that utilizes the touchpad channel grounding. Compared with existing technologies, it has the following advantages:

[0020] This touchpad channel grounding circuit enables touchscreen ID recognition. By using a unique combination of grounding channels, it identifies touchscreens from different manufacturers, allowing electronic devices to achieve plug-and-play compatibility. This means that users can easily replace touchscreens from different manufacturers without worrying about driver or hardware compatibility issues, greatly improving the user experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the touch IC chip circuit of this utility model;

[0022] Figure 2 This is the circuit schematic diagram of the ZIF connector of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-2 As shown:

[0025] An ID recognition circuit for a touchscreen that utilizes touchpad channel grounding includes a ZIF connector and a touch IC chip;

[0026] The first pin of the touch IC chip is electrically connected to one end of capacitor C1111, and the other end of capacitor C1111 is connected to ground.

[0027] The second pin of the touch IC chip is connected to the fourteenth pin of the ZIF connector; the third pin of the touch IC chip is connected to the thirteenth pin of the ZIF connector; the fourth pin of the touch IC chip is connected to the twelfth pin of the ZIF connector; the fifth pin of the touch IC chip is connected to the eleventh pin of the ZIF connector; the sixth pin of the touch IC chip is connected to the tenth pin of the ZIF connector; the seventh pin of the touch IC chip is connected to the ninth pin of the ZIF connector; the eighth pin of the touch IC chip is connected to the eighth pin of the ZIF connector; the ninth pin of the touch IC chip is connected to the seventh pin of the ZIF connector; the tenth pin of the touch IC chip is connected to the sixth pin of the ZIF connector; the eleventh pin of the touch IC chip is connected to the fifth pin of the ZIF connector; the twelfth pin of the touch IC chip is connected to the fourth pin of the ZIF connector; the thirteenth pin of the touch IC chip is connected to the third pin of the ZIF connector; and the fourteenth pin of the touch IC chip is connected to the second pin of the ZIF connector.

[0028] The fifteenth pin of the touch IC chip is electrically connected to one end of capacitor C1112 and one end of resistor R1108. The other end of capacitor C1112 is connected to ground. The other end of resistor R1108 is electrically connected to one end of resistor R1109 and port CTP VDD.

[0029] The 21st pin of the touch IC chip is connected to ground.

[0030] The sixteenth pin of the touch IC chip is electrically connected to the other end of resistor R1109, and one end of capacitor C1110 is electrically connected to it. The other end of capacitor C1110 is connected to ground.

[0031] The seventeenth pin of the touch IC chip is electrically connected to one end of R1112 and one end of resistor R1111. The other end of resistor R1112 is electrically connected to port TP RST.

[0032] The 20th pin of the touch IC chip is electrically connected to one end of resistor R1124 and one end of resistor R1110. The other ends of resistors R1110 and R1111 are both connected to port VLD06 1V8. The other end of resistor R1124 is electrically connected to port TPINT.

[0033] The eighteenth pin of the touch IC chip is electrically connected to one end of resistor R1122, and the other end of resistor R1122 is electrically connected to port TP I2C2 SCL.

[0034] The nineteenth pin of the touch IC chip is electrically connected to one end of resistor R1123, and the other end of resistor R1123 is electrically connected to port TP I2C2 SDA. The first and fifteenth pins of the ZIF connector are both connected to ground.

[0035] The other ends of capacitors C1112 and C1110 are both connected to ground.

[0036] The ZIF connector model is OK-F302-15115-A;

[0037] The touch IC chip model is BL6130Y-QPN-20-3X3.

[0038] In this implementation scheme: A ZIF connector is used as the physical connection interface between the touchpad and the touch IC chip. The S0-S12 channels on the ZIF connector are connected to the 0-12 channels of the touch IC chip U1101. Each manufacturer selects two different channels from the S0-S12 channels of its ZIF connector according to predetermined rules and grounds them. The combination of these grounded channels is unique and serves as the manufacturer's ID identifier. When the touch screen system is started or when the touchpad needs to be identified, the touch IC chip determines which channels are grounded by detecting the level status of the S0-S12 channels. The ID recognition algorithm built into the touch IC chip will determine the manufacturer ID of the touchpad based on the combination of grounded channels. After identifying the manufacturer ID, the touch IC chip can send the ID information to the main control unit through the communication interface.

[0039] By identifying touchscreens from different manufacturers through a unique combination of grounding channels, electronic devices can achieve plug-and-play compatibility. This means that users can easily replace touchscreens from different manufacturers without worrying about driver or hardware compatibility issues, greatly improving the user experience.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A touchscreen ID recognition circuit that utilizes touchpad channel grounding, characterized in that, Includes ZIF connectors and touch IC chips; The first pin of the touch IC chip is electrically connected to one end of capacitor C1111, and the other end of capacitor C1111 is connected to ground. The second pin of the touch IC chip is connected to the fourteenth pin of the ZIF connector; the third pin of the touch IC chip is connected to the thirteenth pin of the ZIF connector; the fourth pin of the touch IC chip is connected to the twelfth pin of the ZIF connector; the fifth pin of the touch IC chip is connected to the eleventh pin of the ZIF connector; the sixth pin of the touch IC chip is connected to the tenth pin of the ZIF connector; the seventh pin of the touch IC chip is connected to the ninth pin of the ZIF connector; the eighth pin of the touch IC chip is connected to the eighth pin of the ZIF connector; the ninth pin of the touch IC chip is connected to the seventh pin of the ZIF connector; the tenth pin of the touch IC chip is connected to the sixth pin of the ZIF connector; the eleventh pin of the touch IC chip is connected to the fifth pin of the ZIF connector; the twelfth pin of the touch IC chip is connected to the fourth pin of the ZIF connector; the thirteenth pin of the touch IC chip is connected to the third pin of the ZIF connector; and the fourteenth pin of the touch IC chip is connected to the second pin of the ZIF connector. The fifteenth pin of the touch IC chip is electrically connected to one end of capacitor C1112 and one end of resistor R1108. The other end of resistor R1108 is electrically connected to one end of resistor R1109 and port CTP VDD. The 21st pin of the touch IC chip is connected to ground. The sixteenth pin of the touch IC chip is electrically connected to the other end of resistor R1109, and one end of capacitor C1110 is also electrically connected to it. The seventeenth pin of the touch IC chip is electrically connected to one end of R1112 and one end of resistor R1111, and the other end of resistor R1112 is electrically connected to port TP RST. The twentieth pin of the touch IC chip is electrically connected to one end of resistor R1124 and one end of resistor R1110. The other ends of resistors R1110 and R1111 are both connected to port VLD06 1V8. The other end of resistor R1124 is electrically connected to port TP INT. The eighteenth pin of the touch IC chip is electrically connected to one end of a resistor R1122, and the other end of the resistor R1122 is electrically connected to the port TP I2C2 SCL. The nineteenth pin of the touch IC chip is electrically connected to one end of a resistor R1123, and the other end of the resistor R1123 is electrically connected to the port TP I2C2 SDA. The first and fifteenth pins of the ZIF connector are both connected to ground.

2. The touchpad channel grounding ID recognition circuit according to claim 1, characterized in that: The other ends of capacitors C1112 and C1110 are both connected to ground.

3. The touchpad channel grounding-based ID recognition circuit according to claim 1, characterized in that: The ZIF connector is model number OK-F302-15115-A.

4. The touchpad channel grounding-based ID recognition circuit according to claim 1, characterized in that: The touch IC chip is model number BL6130Y-QPN-20-3X3.

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