A display panel inspection apparatus

Abstract

The utility model provides a kind of display panel detection equipment, it includes main part and the upper cover being arranged in the upper portion of main part, main control board is equipped on main part, power board electrically connected with main control board, display screen interface adapter plate and display screen electrically connected with display screen interface adapter plate, one end of display panel is electrically connected with main control board while other end is electrically connected with display screen interface adapter plate, main control board is equipped with the MCU module that LED array drive circuit, key detection circuit, display screen drive circuit and light environment sensor on display panel are all electrically connected, this MCU module can drive LED array to emit light, receive the key state that key detection circuit feedback and read light environment sensor data, and synchronously control display screen drive circuit to display screen interface adapter plate will detection result transmission to display screen on and display, it is convenient for detection personnel to observe contrast.

Description

Technical Field

[0001] This utility model relates to a display panel testing device. Background Technology

[0002] Currently, the main treatments for tumors include surgery, radiotherapy, and chemotherapy, but all have corresponding drawbacks. For example, radiotherapy and chemotherapy can cause side effects and kill normal cells. Using electric fields to treat tumors is also at the forefront of research. Tumor Treating Fields (TTF) is a method that applies a low-intensity, medium-frequency alternating electric field to cancer cells, thereby interfering with the mitotic process of cancer cells, inhibiting mitosis, and inducing apoptosis, thus achieving a therapeutic effect. The electric field therapy equipment used to treat tumors mainly includes a tumor electric field therapy device main unit and electrode patches electrically connected to the main unit. The electrode patches are applied to the skin corresponding to the lesion, thus applying the alternating electric field to the tumor tissue area for electric field tumor therapy.

[0003] Existing tumor electric field therapy devices are all equipped with a visual interaction module, such as a display screen and / or LED indicator beads. The main control board inside the tumor electric field therapy device generally controls the display screen's display function through a display board electrically connected to the display screen. The LED indicator beads are usually integrated into the display board along with their corresponding switch buttons to indicate the start or end of the treatment process. The display board is also generally equipped with a light sensor to help the display screen adjust its brightness according to the intensity of the external ambient light. Therefore, the display board is particularly important for functions such as driving the LED beads to emit light, judging the button feedback corresponding to the LED beads, driving the display screen, and reading data from the light sensor.

[0004] Therefore, a display panel testing device is needed to test the aforementioned functions of the incoming display panel before the main unit of the tumor electric field therapy device is assembled. Utility Model Content

[0005] This application provides a display panel testing device for performing functional testing on display panels.

[0006] Specifically, this application is achieved through the following technical solution: a display panel testing device, which includes a main body and an upper cover disposed above the main body. The main body is provided with a main control board, a display interface adapter board, a power board electrically connected to the main control board, and a display screen electrically connected to the display interface adapter board. The display panel is electrically connected to both the main control board and the display interface adapter board.

[0007] According to one embodiment of the present invention, the power board is provided with an adapter interface and a power switch, and the main control board is provided with an MCU module, the MCU module having an I / O interface, an SPI interface and an I2C interface.

[0008] According to one embodiment of the present invention, the display panel is provided with an LED array driving circuit, an LED array electrically connected to the LED array driving circuit, a key detection circuit, a key electrically connected to the key detection circuit, a display screen driving circuit, and a light environment sensor.

[0009] According to one embodiment of the present invention, the LED array driving circuit and the button detection circuit are both connected to the I / O interface, and the light environment sensor is connected to the I2C interface.

[0010] According to one embodiment of the present invention, one end of the display screen driving circuit is connected to the SPI interface, and the other end of the display screen driving circuit is electrically connected to the display screen interface adapter board.

[0011] According to one embodiment of the present invention, the main body is provided with a first receiving slot for accommodating the power board, a second receiving slot for accommodating the main control board, a third receiving slot for accommodating the display screen, a fourth receiving slot for accommodating the display screen interface adapter board, and a fixing platform for mounting the display board.

[0012] According to one embodiment of the present invention, the main body is provided with a clearance platform corresponding to the adapter interface and the power switch of the power board, and the adapter interface and the power switch are exposed in the clearance platform.

[0013] According to one embodiment of the present invention, the display panel further has a through hole, and the fixing platform has a supporting inclined surface for supporting the display panel, a limiting part that abuts against one side of the display panel, and a protrusion that cooperates with the through hole.

[0014] According to one embodiment of the present invention, the LED array is disposed on one side of the display panel corresponding to the main body, and the main body is further provided with a reflector corresponding to the LED array.

[0015] According to one embodiment of the present invention, the upper cover has a notch corresponding to the reflector, and part of the power board and the main control board are covered inside the upper cover, while the display board, the display interface adapter board, the display screen and the reflector are exposed.

[0016] The display panel testing equipment provided in this application has an MCU module on its main control board that can be electrically connected to the LED array driving circuit, key detection circuit, display screen driving circuit, and light environment sensor on the display panel. The MCU module can drive the LED array to emit light, receive the key status feedback from the key detection circuit, and read the data from the light environment sensor. Simultaneously, its SPI interface controls the display screen driving circuit to transmit the test results to the display screen for display via the display screen interface adapter board. This allows the testing personnel to observe and compare to determine whether the key functions, LED array emitting function, display screen driving function, and light sensing function of the light environment sensor on the display panel are normal.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] Figure 1 This is a perspective view of a display panel testing device according to one embodiment of the present invention with its top cover open. Figure 2 for Figure 1 A three-dimensional structural diagram of the main body of the display panel testing equipment shown in the figure; Figure 3 for Figure 1 The diagram shows a three-dimensional view of the display panel testing device at a certain angle with its top cover closed. Figure 4 for Figure 1 The diagram shows a schematic block diagram illustrating the circuit principle of the display panel testing device.

[0019] Explanation of reference numerals in the attached drawings: Display board detection device 100, adapter 11, power board 12, adapter interface 120, power switch 121, main control board 13, MCU module 130, I / O interface 1300, SPI interface 1301, I2C interface 1302, display board 14, LED array driver circuit 140, LED array 1400, button detection circuit 141, button 1410, display screen driver circuit 142, ambient light sensor 143. Through hole 144, display interface adapter plate 15, display screen 16, main body 20, first receiving groove 21, clearance platform 210, clearance groove 211, second receiving groove 22, support part 220, third receiving groove 23, fourth receiving groove 24, fifth receiving groove 25, fixing platform 26, support slope 260, slot 261, limiting part 262, protrusion 263, reflector 27, top cover 30, notch 31, magnetic absorbing piece 32, magnetic absorbing block 33, connector 40. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples consistent with some aspects of this application.

[0021] refer to Figures 1 to 4 As shown, this utility model relates to a display panel testing device 100 for performing functional testing on a display panel 14, which includes a main body 20 and a top cover 30 disposed above the main body 20. The main body 20 is provided with a main control board 13, a power supply board 12 electrically connected to the main control board 13, a display interface adapter board 15 electrically connected to the main control board 13, and a display screen 16 electrically connected to the display interface adapter board 15. The power supply board 12 is provided with an adapter interface 120 and a power switch 121. The adapter interface 120 is configured to be plugged into an external adapter 11 to supply power to the main control board 13, and the power switch 121 is configured to control the on / off state of the power supply. The main control board 13 is provided with an MCU module 130, which has an I / O interface 1300, an SPI interface 1301, and an I2C interface 1302. Display board 14 is configured to be electrically connected to both main control board 13 and display interface adapter board 15, so as to further connect to display screen 16 via display interface adapter board 15 and perform functional testing on display board 14. Specifically, display board 14 is provided with LED array driving circuit 140, button detection circuit 141, display screen driving circuit 142 and light environment sensor 143. LED array driving circuit 140 and button detection circuit 141 are both configured to connect to I / O interface 1300 on MCU module 130, display screen driving circuit 142 is configured to connect to SPI interface 1301 on MCU module 130, and light environment sensor 143 is configured to connect to I2C interface 1302 on MCU module 130. Display board 14 also provides LED array 1400 electrically connected to LED array driving circuit 140 and buttons 1410 electrically connected to button detection circuit 141.

[0022] When the tester inserts adapter 11 into adapter interface 120 of power board 12 and turns on power switch 121 for normal power supply, the I / O interface 1300 on MCU module 130 of main control board 13 controls LED array driver circuit 140 on display board 14 to drive LED array 1400, causing LED array 1400 to flash blue and green lights alternately at a frequency of 1Hz. The tester can visually observe whether the indicator lights (unlabeled) on LED array 1400 are flashing normally to determine whether the LED array 1400 on display board 14 is functioning normally. When the tester presses or releases button 1410 on display board 14, button detection circuit 141 outputs different high and low levels according to the detected button state, which are transmitted to MCU on main control board 13 via I / O interface 1300. Module 130 and MCU module 1300 then synchronously control the display drive circuit 142 on the display board 14 through its SPI interface 1301 based on the feedback of the button status. After passing through the display interface adapter board 15, the display screen 16 is driven to display the current button status. Specifically, when button 1410 is in the pressed state, the display screen 16 will display the word "pressed" and when button 1410 is in the released state, the display screen 16 will display the word "released". The tester can compare the actual situation of button 1410 being pressed and released with the display situation of the display screen 16 to determine whether the button function on the display board 14 is normal. The tester can also determine whether the display drive function of the display drive circuit 142 on the display board 14 is normal based on the preset words or preset screens displayed on the display screen 16. The MCU module 130 on the main control board 13 can also read data from the ambient light sensor 143 on the display board 14 through its I2C interface 1302 to obtain the ambient light intensity and compare it with its preset ambient light intensity range. If the ambient light intensity falls within the set range, it indicates that the sensing function of the ambient light sensor 143 is normal; otherwise, it is abnormal. After determining whether the sensing function of the ambient light sensor 143 is normal, the MCU module 130 controls the display screen driver circuit 142 on the display board 14 through its SPI interface 1301, and then drives the display screen 16 through the display screen interface adapter board 15 to display whether the sensing function of the ambient light sensor 143 has passed the detection requirements. If it passes, the display screen 16 will display "Light sensing passed"; if it fails, the display screen 16 will display "Light sensing failed".

[0023] refer to Figure 2 and Figure 3As shown, the display panel testing device 100 has a roughly box-shaped structure. Its main body 20 is roughly rectangular. The top left side of the main body 20 is recessed to form a first receiving groove 21 for accommodating the power board 12. The top of the main body 20 is recessed to the right of the first receiving groove 21 to form a second receiving groove 22 for accommodating the main control board 13. The right side of the top of the main body 20 and the corner near the front end is recessed to form a third receiving groove 23 for accommodating the display screen 16. The top of the main body 20 is recessed to the left of the third receiving groove 23 to form a fourth receiving groove 24 for accommodating the display screen interface adapter board 15. The top of the main body 20 is located to the left of the fourth receiving groove 24 and in front of the second receiving groove 22, and a roughly frustum-shaped fixing platform 26 is provided for placing the display panel 14 waiting to be tested.

[0024] It should be noted that since the power board 12 has an adapter interface 120 and a power switch 121 protruding from its side on the front, the main body 20 has a clearance recess 210 on the left side of the first receiving groove 21, corresponding to the positions of the adapter interface 120 and the power switch 121. This allows the adapter interface 120 and the power switch 121 to be exposed on the left side of the main body 20, making it convenient for testing personnel to plug in the adapter 11 and operate the power switch 121 to start or stop the testing process at any time. Since electrical components are also arranged on the back of the power board 12, the bottom of the first receiving groove 21 is recessed downwards at the locations of the electrical components arranged on the back of the power board 12 to form multiple clearance grooves 211. The clearance grooves 211 can further accommodate the electrical components arranged on the back of the power board 12. Since electrical components are evenly distributed on the front and back of the main control board 13, the bottom of the second receiving groove 22 protrudes upward from the part on the back of the main control board 13 where no electrical components are provided. The main control board 13 can be mounted on the support 220. The support 220 can form a clearance space (unlabeled) between the bottom of the second receiving groove 22 and the back of the main control board 13 to avoid the electrical components on the back of the main control board 13.

[0025] The mounting platform 26 has a supporting ramp 260 located on its front side for supporting the display panel 14. The mounting platform 26 has a left-right extending arc-shaped slot 261 on the bottom side of the supporting ramp 260. The mounting platform 26 extends forward to form a limiting part 262 on the right side of the supporting ramp 260. The supporting ramp 260 also protrudes outward to form a protrusion 263 corresponding to the through hole 144 on the display panel 14. The inspector can insert the bottom of the display panel 14 from the left side of the slot 261 of the mounting platform 26 until the right side of the display panel 14 abuts against the limiting part 262, and align the through hole 144 of the display panel 14 with the protrusion 263 on the supporting ramp 260 for engagement and limiting, so that the display panel 14 can finally be mounted on the supporting ramp 260. In this embodiment, the length of the display panel 14 is greater than the length of the supporting inclined surface 260. The LED array 1400 is located on the back of the display panel. Specifically, when the right side of the display panel 14 abuts against the limiting part 262 and is fixed on the fixing platform 26, the back of the LED array 1400 on the left side of the display panel 14 that does not contact the supporting inclined surface 260 is exposed. A reflector 27 is also provided on the top of the main body 20 at the left side of the fixing platform 26 corresponding to the LED array 1400. This arrangement makes it convenient for the inspection personnel to directly observe the light emission state of the LED array 1400 located on the back of the display panel 14 from the reflector 27.

[0026] Back Figure 1 As shown, one side of the upper cover 30 is pivotally connected to the main body 20 via at least two connectors 40, allowing the upper cover 30 to be opened or closed relative to the main body 20. The connectors 40 can be either connecting shafts or hinges. A fifth recessed receiving groove 25 is also provided at the top of the main body 20 between the second receiving groove 22 and the fixing platform 26. A magnetic absorbing piece 32 is provided within the fifth receiving groove 25. The shape and size of the magnetic absorbing piece 32 are similar to those of the fifth receiving groove 25, and it is fixed to the main body 20 by the engagement of screw holes (not labeled) and bolts (not shown) on both sides corresponding to the fifth receiving groove 25. A magnetic block 33 is provided on the front side of the upper cover 30 corresponding to the magnetic absorbing piece 32. With this arrangement, the upper cover 30 can be magnetically fixed to the main body 20 by the engagement of the magnetic block 33 on its upper cover with the magnetic absorbing piece 32 on the top of the main body 20, facilitating opening and closing. The upper cover 30 is also provided with a notch 31 corresponding to the recessed platform 210 to further expose the reflector 27 when it is closed with the main body 20, so as to facilitate the inspection personnel to observe the light emission state of the LED array 1400 reflected in the reflector 27. In this embodiment, when the upper cover 30 is closed with the main body 20, only part of the power board 12 and the main control board 13 are covered in the upper cover 30, while the display board 14, the display interface adapter board 15 and the display screen 16 are exposed.

[0027] The display panel testing device 100 provided by this utility model has an MCU module 130 on its main control board 13 that is electrically connected to the LED array driving circuit 140, the button detection circuit 141, the display screen driving circuit 142, and the light environment sensor 143 on the display panel 14. The MCU module 130 can drive the LED array 1400 to emit light, receive the button 1410 status feedback from the button detection circuit 141, and read the data from the light environment sensor 143. It also synchronously controls the display screen driving circuit 142 through the display screen interface adapter board 15 to transmit the test results to the display screen 16 for display, so that the testers can observe and compare to determine whether the button 1410 function, the LED array 1400 emission function, the display screen driving circuit 142 driving function, and the light sensing function of the light environment sensor 143 on the display panel 14 are normal.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display panel testing device for performing functional testing on display panels, characterized in that: The display panel testing equipment includes a main body and an upper cover located above the main body. The main body is provided with a main control board, a display interface adapter board, a power board electrically connected to the main control board, and a display screen electrically connected to the display interface adapter board. The display panel is electrically connected to both the main control board and the display interface adapter board.

2. The display panel testing equipment according to claim 1, characterized in that: The power board is equipped with an adapter interface and a power switch, and the main control board is equipped with an MCU module, which has an I / O interface, an SPI interface and an I2C interface.

3. The display panel testing equipment according to claim 2, characterized in that: The display panel is equipped with an LED array driving circuit, an LED array electrically connected to the LED array driving circuit, a key detection circuit, a key electrically connected to the key detection circuit, a display screen driving circuit, and a light environment sensor.

4. The display panel testing equipment according to claim 3, characterized in that: The LED array driving circuit and the button detection circuit are both connected to the I / O interface, and the light environment sensor is connected to the I2C interface.

5. The display panel testing equipment according to claim 3, characterized in that: One end of the display screen driving circuit is connected to the SPI interface, and the other end of the display screen driving circuit is electrically connected to the display screen interface adapter board.

6. The display panel testing equipment according to claim 3, characterized in that: The main body is provided with a first receiving slot for accommodating the power board, a second receiving slot for accommodating the main control board, a third receiving slot for accommodating the display screen, a fourth receiving slot for accommodating the display screen interface adapter board, and a mounting platform for mounting the display board.

7. The display panel testing equipment according to claim 6, characterized in that: The main body is provided with a clearance platform corresponding to the adapter interface and the power switch of the power board, and the adapter interface and the power switch are exposed on the clearance platform.

8. The display panel testing equipment according to claim 6, characterized in that: The display panel also has a through hole, and the fixing platform has a supporting inclined surface for supporting the display panel, a limiting part that abuts against one side of the display panel, and a protrusion that cooperates with the through hole.

9. The display panel testing equipment according to claim 8, characterized in that: The LED array is disposed on one side of the display panel corresponding to the main body, and the main body is also provided with a reflector corresponding to the LED array.

10. The display panel testing equipment according to claim 9, characterized in that: The top cover has a notch corresponding to the reflector. Part of the power board and the main control board are covered inside the top cover, while the display board, the display interface adapter board, the display screen, and the reflector are all exposed.

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