General test platform for touch display screen based on GD32 single-chip microcomputer

Abstract

The utility model relates to a touch display screen general test platform based on a GD32 single-chip microcomputer, which comprises a core board, a bottom board, an OLED display screen and a 40-pin expansion interface, the core board is electrically connected with the bottom board, the core board is provided with an interface module, the interface module is provided with a plurality of touch display screen communication interfaces, and the 40-pin expansion interface is electrically connected with the OLED display screen. The interface module is used for being electrically connected with the touch display screen, the bottom plate is used for enabling the core plate to be in communication connection with external equipment, the OLED display screen is electrically connected with the bottom plate, the 40-pin expansion interface is electrically connected with the core plate, and the 40-pin expansion interface is used for being connected with the RGB-to-LVDS adapter plate or the RGB-to-MIPI adapter plate. The method has the advantages that function testing can be conveniently carried out on the display screens with different interfaces, and the testing efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of touch display screen testing, and in particular to a general touch display screen testing platform based on a GD32 single-chip microcomputer. Background Art

[0002] Currently, for mainstream display screens below 10.1 inches in the market, the communication interfaces are mainly SPI, 8080, RGB, LVDS, and MIPI interfaces, while the communication interfaces of touch screens are mainly I2C and SPI. For display screens with different interfaces, different mainboards are required for functional testing, and the usage methods of different mainboards may also be different. This results in production line workers frequently switching different test boards to test different display screens. Moreover, with too many types of test boards, it is not easy to manage on the production line, greatly affecting production efficiency. Therefore, there is room for improvement. Content of the Utility Model

[0003] In order to facilitate the functional testing of display screens with different interfaces and improve the testing efficiency, this application provides a general touch display screen testing platform based on a GD32 single-chip microcomputer.

[0004] A general touch display screen testing platform based on a GD32 single-chip microcomputer provided by this application adopts the following technical solutions:

[0005] A general touch display screen testing platform based on a GD32 single-chip microcomputer includes a core board, a base board, an OLED display screen, and a 40-pin expansion interface. The core board is electrically connected to the base board. An interface module is provided on the core board. The interface module is provided with several touch display screen communication interfaces. The interface module is used to be electrically connected to the touch display screen. The base board is used to communicate and connect the core board with external devices. The OLED display screen is electrically connected to the base board. The 40-pin expansion interface is electrically connected to the core board. The 40-pin expansion interface is used to connect an RGB-to-LVDS adapter board or an RGB-to-MIPI adapter board.

[0006] By adopting the above technical solutions, during the process of functional testing of the touch display screen, the touch display screen is communicatively connected to the interface module of the core board. The interface module on the core board can be electrically connected to touch display screens with different types of interfaces. The base board provides the working voltage for the core board and enables the core board to communicate and connect with external devices, that is, it can be connected to an external computer for functional testing of the touch display screen. By setting the OLED display screen, the functional testing results of the touch display screen can be read in real time. Through the 40-pin expansion interface, an RGB-to-LVDS adapter board or an RGB-to-MIPI adapter board can be connected, and it can be electrically connected to touch display screens with LVDS interfaces and MIPI interfaces, facilitating the functional testing of display screens with different interfaces and improving the testing efficiency.

[0007] Optionally, the core board includes a GD32F470ZIT6 single-chip microcomputer, a USB-C to serial port, a USB-C communication interface, user buttons, a reset button, user LED lights, a power indicator light, an SPI FLASH module, an EEPROM module, a pin header interface, an SDRAM module, a TF card slot, and an SWD debugging interface.

[0008] Optionally, the interface module includes an SPI interface, an 8080 interface, and an RGB interface.

[0009] By adopting the above technical solution, by setting the SPI interface, the 8080 interface, and the RGB interface, the core board can be connected to touch display screens with different interface models, and thus different interface models of touch display screens can be used on one core board.

[0010] Optionally, the base board includes a button module, a power switch, a DC power socket, and a female header socket interface.

[0011] By adopting the above technical solution, by setting the button module, the button module is electrically connected to the user buttons on the core board. The tester can switch the function test items of the touch display screen by pressing the buttons. The power switch is used to control the power supply switch. The DC power socket is used to connect to the mains alternating current to provide power for the base board. It communicates with external devices through the female header socket.

[0012] Optionally, the 40-pin expansion interface is used to connect different adapter boards to adapt to touch display screens with different interfaces.

[0013] By adopting the above technical solution, through the 40-pin expansion interface, it is convenient to perform function tests on display screens with different interfaces.

[0014] Optionally, the 40-pin expansion interface is used to connect an RGB to LVDS adapter board for testing a display screen with an LVDS interface.

[0015] By adopting the above technical solution, by connecting the RGB to LVDS adapter board through the 40-pin expansion interface, the core board can be connected to a touch display screen with an LVDS interface, improving the practicality of the core board.

[0016] Optionally, the 40-pin expansion interface is used to connect an RGB to MIPI adapter board for testing a display screen with an MIPI interface.

[0017] By adopting the above technical solution, by connecting the RGB to MIPI adapter board through the 40-pin expansion interface, the core board can be connected to a touch display screen with an MIPI interface, improving the practicality of the core board.

[0018] Optionally, the OLED display screen is used to display voltage and current information in real time.

[0019] By adopting the above technical solution, by setting the OLED display screen, the function test situation of the touch display screen can be monitored in real time, so as to improve the safety of the function test process.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By using the GD32 single-chip microcomputer as the core controller, the test of multiple interface display screens is realized, which not only has low cost but also good compatibility, greatly improving the test efficiency;

[0022] 2. By setting a 40-pin expansion interface, the test platform can be flexibly connected to different adapter boards according to needs to adapt to the test requirements of display screens with different interfaces, further improving the versatility and flexibility of the test platform. Description of the Drawings

[0023] Figure 1 is the structural diagram of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application.

[0024] Figure 2 is the structural diagram of the core board of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application.

[0025] Figure 3 is the structural diagram of the bottom board of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application.

[0026] Figure 4 is the wiring diagram of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application connecting an SPI interface capacitive touch display screen.

[0027] Figure 5 is the wiring diagram of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application connecting an 8080 interface capacitive touch display screen.

[0028] Figure 6 is the wiring diagram of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application connecting an RGB interface capacitive touch display screen.

[0029] Figure 7 is the wiring diagram of a general-purpose touch display screen test platform based on the GD32 single-chip microcomputer in an embodiment of the present application connecting an LVDS interface capacitive touch display screen.

[0030] Figure 8It is a wiring diagram of a general test platform for a touch display screen based on a GD32 single-chip microcomputer connecting to a capacitive touch display screen with a MIPI interface in an embodiment of the present application.

[0031] Explanation of reference numerals: 1, bottom board; 2, core board; 3, 40-pin expansion interface; 4, OLED display screen. Specific implementation mode

[0032] The following will Figure 1-8 make a further detailed description of the present application.

[0033] An embodiment of the present application discloses a general test platform for a touch display screen based on a GD32 single-chip microcomputer. Referring to Figure 1-8 , a general test platform for a touch display screen based on a GD32 single-chip microcomputer includes a core board 2, a bottom board 1, an OLED display screen 4, and a 40-pin expansion interface 3. The core board 2 is electrically connected to the bottom board 1. An interface module is provided on the core board 2. The interface module is provided with a plurality of touch display screen communication interfaces. The interface module is used to be electrically connected to the touch display screen. The bottom board 1 is used to communicate and connect the core board 2 with external devices. The OLED display screen 4 is electrically connected to the bottom board 1. The 40-pin expansion interface 3 is electrically connected to the core board 2. The 40-pin expansion interface 3 is used to connect an RGB-to-LVDS adapter board or an RGB-to-MIPI adapter board.

[0034] The model of the core board 2 is GD32F470. The GD32F470 core board 2 is the core part of the test platform. It includes a single-chip microcomputer of the model GD32F470ZIT6, a USB-C to serial port, a USB-C communication interface, user buttons, a reset button, user LED lights, a power indicator light and other multiple functional modules. In addition, the core board 2 is also equipped with storage devices such as an SPI FLASH module and an EEPROM module, as well as expansion devices such as an SDRAM module and a TF card socket, providing the test platform with strong data storage and expansion capabilities. The bottom board 1 includes a button module, a power switch, a DC power socket and a female header socket interface, providing a stable power supply and external device connection functions for the test platform

[0035] The implementation principle of an embodiment of a general test platform for a touch display screen based on a GD32 single-chip microcomputer in the present application is as follows: The test platform can connect and test touch display screens with multiple mainstream interfaces through multiple display screen interfaces on the GD32F470 core board 2, such as SPI interfaces, 8080 interfaces and RGB interfaces. At the same time, the design of the 40-pin expansion interface 3 enables the test platform to connect an RGB-to-LVDS adapter board or an RGB-to-MIPI adapter board according to needs, so as to realize the test of LVDS interface or MIPI interface display screens. This design greatly improves the versatility and compatibility of the test platform, reduces the operation complexity of production line employees, and improves the test efficiency.

[0036] Example 2

[0037] The difference in this embodiment is that the test platform further optimizes the data storage and expansion capabilities. Specifically, the design of the TF card slot enables the test platform to conveniently store a large number of test pictures, meeting the requirements for different test pictures during the test process. At the same time, the equipped SDRAM also provides a larger memory space for the test platform, making the test process smoother.

[0038] Example 3

[0039] The difference in this embodiment is that the test platform realizes the program download and serial port debugging print information output through the USB-C to serial port. This design makes the development and debugging process more convenient and efficient, contributing to improving the usability and maintainability of the test platform. At the same time, the design of the user LED and power indicator also provides intuitive device status indication for users, further enhancing the user experience.

[0040] Example 4

[0041] This embodiment discloses a test scenario using the 40-pin expansion interface 3. As Figure 7 shown, when testing a display screen with an LVDS interface, the RGB to LVDS adapter board can be connected through the 40-pin expansion interface 3, thus realizing the test of the LVDS interface display screen. The design of the adapter board enables the display screen that could originally only be tested through the RGB interface to adapt to the test requirements of the LVDS interface, further enhancing the flexibility and application scope of the test platform.

[0042] Example 5

[0043] Similar to Example 4, as Figure 8 shown, this embodiment demonstrates the scenario of testing a display screen with a MIPI interface by connecting an RGB to MIPI adapter board through the 40-pin expansion interface 3. Through this connection method, the test platform can easily adapt to display screens of different interface types without replacing the entire test platform, thereby reducing the test cost and time cost.

[0044] Example 6

[0045] This embodiment elaborates in detail on the role of the OLED display screen 4 in the test platform. As Figure 1 shown, the OLED display screen 4 can display the voltage and current information of the currently tested display screen or touch screen in real time, enabling the test personnel to intuitively understand the operating status and performance parameters of the device. This design greatly improves the transparency and monitorability of the test process, contributing to the timely discovery and solution of potential problems.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A general test platform for touch display screens based on GD32 microcontrollers, characterized in that, It includes a core board (2), a base board (1), an OLED display screen (4), and a 40-pin expansion interface (3). The core board (2) is electrically connected to the base board (1). An interface module is provided on the core board (2). The interface module is provided with a number of touch display communication interfaces. The interface module is used for electrically connecting to a touch display screen. The base board (1) is used for communicating and connecting the core board (2) with external devices. The OLED display screen (4) is electrically connected to the base board (1). The 40-pin expansion interface (3) is electrically connected to the core board (2). The 40-pin expansion interface (3) is used for connecting an RGB-to-LVDS adapter board or an RGB-to-MIPI adapter board.

2. The general test platform for touch display screens based on GD32 microcontrollers according to claim 1, wherein The core board (2) includes a GD32F470ZIT6 single-chip microcomputer, a USB-C to serial port, a USB-C communication interface, user buttons, a reset button, user LED lights, a power indicator light, an SPI FLASH module, an EEPROM module, a pin header interface, an SDRAM module, a TF card slot, and an SWD debugging interface.

3. The general test platform for touch display screens based on GD32 single-chip microcontrollers according to claim 2, wherein, The interface module includes an SPI interface, an 8080 interface, and an RGB interface.

4. The general test platform for touch display screens based on GD32 microcontrollers according to claim 1, characterized in that The base board (1) includes a button module, a power switch, a DC power socket, and a female header socket interface.

5. The general test platform for touch display screens based on GD32 single-chip microcontrollers according to claim 1, wherein The 40-pin expansion interface (3) is used for connecting different adapter boards to adapt to touch display screens with different interfaces.

6. The general test platform for touch display screens based on GD32 microcontrollers according to claim 5, characterized in that, The 40-pin expansion interface (3) is used for connecting an RGB-to-LVDS adapter board for testing a display screen with an LVDS interface.

7. The general test platform for touch display screens based on GD32 microcontrollers according to claim 5, characterized in that The 40-pin expansion interface (3) is used for connecting an RGB-to-MIPI adapter board for testing a display screen with an MIPI interface.

8. The general test platform for touch display screens based on GD32 microcontrollers according to claim 1, characterized in that, The OLED display screen (4) is used for real-time displaying voltage and current information.

Images