CN216900763U - Touch key testing device of capacitive touch screen - Google Patents
Touch key testing device of capacitive touch screen Download PDFInfo
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- CN216900763U CN216900763U CN202220391741.7U CN202220391741U CN216900763U CN 216900763 U CN216900763 U CN 216900763U CN 202220391741 U CN202220391741 U CN 202220391741U CN 216900763 U CN216900763 U CN 216900763U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model discloses a touch key test device of a capacitive touch screen, which comprises a touch adapter plate and an indicator lamp, wherein the touch adapter plate is provided with a GPIO test input end and a GPIO test output end, the GPIO test output end is connected with the GPIO test input end through a circuit on the touch adapter plate, the GPIO test input end is used for being connected with a GPIO port of the capacitive touch screen, one end of the indicator lamp is connected with the GPIO test output end of the touch adapter plate, and the other end of the indicator lamp is grounded. The utility model has simple structure, and when in test, the touch key of the capacitive touch screen is directly pressed, and the test of the capacitive touch screen based on the GPIO can be realized by judging whether the indicator lamp is lightened, namely the touch key is qualified in the test, and when the indicator lamp is not lightened, the touch key is unqualified in the test.
Description
Technical Field
The utility model relates to the technical field of capacitive touch screen testing, in particular to a touch key testing device of a capacitive touch screen.
Background
Touch screens are widely applied to daily life of people, mature processes and supporting equipment are used for manufacturing the touch screens, and manufacturing optimization can improve manufacturing efficiency and benefits. The existing touch screen key is a capacitive touch key, and the capacitive touch key is realized by appointing the number of channels through an Integrated Circuit (IC) so as to control touch, so that the appointed channel number can be directly tested through a test tool of an IC factory, and whether the capacitive touch key is normal or not can be tested. But based on the capacitive touch screen of GPIO, every button on the capacitive touch screen corresponds a GPIO mouth, and circuit design can guarantee: the GPIO port without key action is Low, and the GPIO port with key action is High, namely, the existing test tool of the IC factory can not realize the key test requirement of the touch screen based on GPIO.
The existing capacitive touch screen based on the GPIO needs a test computer to connect a GPIO test pin out to be connected with a GPIO pin simulation complete machine test principle of the touch screen or adopts a Bus Hound tool to perform touch test, when the test computer performs test, the GPIO test pin needs to be led out from each test computer, the test operation is complex, the Bus Hound tool is adopted, the numerical value is displayed when a touch key is pressed down, but PASS and NG cannot be displayed, whether the key is qualified or not needs to be autonomously judged, and the test efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a touch key testing device of a capacitive touch screen, which is used for testing the capacitive touch screen based on the GPIO and has the advantages of simple structure, convenience in use and operation and visual and accurate test result.
The technical scheme of the utility model is as follows:
the utility model provides a touch button testing arrangement of capacitive touch screen, is including touch keysets and pilot lamp, the touch keysets on be provided with GPIO test input end and GPIO test output, GPIO test output pass through the circuit on the touch keysets and be connected with GPIO test input end, GPIO test input end is used for being connected with the GPIO mouth of capacitive touch screen, the one end of pilot lamp is connected with the GPIO test output of touch keysets, the other end ground connection of pilot lamp.
The touch adapter plate is provided with a grounding end, and the other end of the indicator light is connected with the grounding end on the touch adapter plate.
The touch adapter plate is a printed circuit board.
The indicating lamp is an LED monochromatic indicating lamp.
The utility model has the advantages that:
the capacitive touch screen test device only comprises the touch adapter plate and the indicator lamp, is simple in structure, can realize the test of the capacitive touch screen based on the GPIO by directly pressing down the touch keys of the capacitive touch screen and judging whether the indicator lamp is lightened or not, is simple in judgment mode, and is visual and accurate in test result, and the test of the capacitive touch screen based on the GPIO is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a circuit diagram of the present invention.
The number of the touch panel is 1, a touch adapter plate, a 2-LED single-color indicator lamp, a 3-capacitive touch screen, a 11-GPIO test input end of the touch adapter plate, a 12-GPIO test output end of the touch adapter plate, a 31-GPIO port of the capacitive touch screen, and a touch key of an S-capacitive touch screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
See fig. 1, a touch key testing device of capacitive touch screen, including touch keysets 1(PCB board) and LED monochromatic indicator 2, be provided with GPIO test input 11 on the touch keysets 1, GPIO test output 12 and earthing terminal GND, GPIO test output 12 is connected with GPIO test input 11 through the circuit on the touch keysets, GPIO test input 11 is used for being connected with GPIO mouth 31 of capacitive touch screen 3, the one end of LED monochromatic indicator 2 is connected with GPIO test output 12 of touch keysets 1, the other end of LED monochromatic indicator 2 is connected with earthing terminal GND on the touch keysets 1.
Referring to fig. 2, the LED monochromatic indicator light 2 of the utility model is directly connected to the GPIO port 31 of the capacitive touch screen through the touch adapter plate 1, the anode of the LED monochromatic indicator light 2 is connected to the GPIO port 31, and the cathode is grounded to GND; when a touch key S of the capacitive touch screen is not pressed down, a GPIO port 31 of the capacitive touch screen is grounded GND, no current is input into the whole circuit, the GPIO port 31 is Low, and the LED monochromatic indicator lamp 2 is not on; when a touch key S of the capacitive touch screen is pressed down, the current passes through the closed touch key S and then is branched, the current does not fully flow into the LED monochromatic indicator lamp 2, and partial current enters the GPIO port 13 of the capacitive touch screen, so that the GPIO port 31 is HIGH, and meanwhile, the LED monochromatic indicator lamp 2 is lightened.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a capacitive touch screen's touch button testing arrangement which characterized in that: the touch panel is provided with a GPIO test input end and a GPIO test output end, the GPIO test output end is connected with the GPIO test input end through a circuit on the touch panel, the GPIO test input end is used for being connected with a GPIO port of the capacitive touch screen, one end of the indicator light is connected with the GPIO test output end of the touch panel, and the other end of the indicator light is grounded.
2. The device for testing the touch keys of the capacitive touch screen according to claim 1, wherein: the touch adapter plate is provided with a grounding end, and the other end of the indicator light is connected with the grounding end on the touch adapter plate.
3. The device for testing the touch keys of the capacitive touch screen according to claim 1, wherein: the touch adapter plate is a printed circuit board.
4. The device for testing the touch keys of the capacitive touch screen according to claim 1, wherein: the indicating lamp is an LED monochromatic indicating lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220391741.7U CN216900763U (en) | 2022-02-25 | 2022-02-25 | Touch key testing device of capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220391741.7U CN216900763U (en) | 2022-02-25 | 2022-02-25 | Touch key testing device of capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216900763U true CN216900763U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220391741.7U Active CN216900763U (en) | 2022-02-25 | 2022-02-25 | Touch key testing device of capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216900763U (en) |
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2022
- 2022-02-25 CN CN202220391741.7U patent/CN216900763U/en active Active
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