CN219871651U - Mini-LED dynamic backlight hardware performance detection device - Google Patents
Mini-LED dynamic backlight hardware performance detection device Download PDFInfo
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- CN219871651U CN219871651U CN202320841684.2U CN202320841684U CN219871651U CN 219871651 U CN219871651 U CN 219871651U CN 202320841684 U CN202320841684 U CN 202320841684U CN 219871651 U CN219871651 U CN 219871651U
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- 238000001514 detection method Methods 0.000 title claims abstract description 107
- 238000012360 testing method Methods 0.000 claims abstract description 83
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- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
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Abstract
The utility model relates to the technical field of LEDs, and mainly provides a mini-LED dynamic backlight hardware performance detection device which comprises an upper computer, a power supply module, a control module and a power detection module, wherein the upper computer is connected with the power supply module; the upper computer is connected with the control module and is used for sending a test instruction to the control module and receiving a test result fed back by the control module; the control module is respectively connected with the mini-LED backlight plate, the power supply module and the power detection module and is used for sending a test instruction to the mini-LED backlight plate so that the mini-LED backlight plate can be tested according to the test instruction, and in the test process, test data are received, and a test result is determined based on the test data; the power supply module is respectively connected with the power detection module and the mini-LED backlight plate and is used for supplying power to the mini-LED backlight plate, the power detection module and the control module; the power detection module is used for detecting test data of the mini-LED backlight plate and sending the test data to the control module. Through the structure, the mini-LED backlight plate can be dynamically monitored in power supply, and the problem points are accurately positioned according to the detection result.
Description
[ field of technology ]
The utility model relates to the technical field of LEDs, in particular to a mini-LED dynamic backlight hardware performance detection device.
[ background Art ]
At present, aiming at performance test of a mini-LED backlight board, hardware performance and actual dynamic effects of the mini-LED backlight board are detected mainly through a TV whole machine simulation framework, and all functional modules are required to be built according to the trend of TV whole machine signals in the process of simulating a test environment. However, in the whole process, the time consumed for building the environment is too long, and the problems of power supply detection and test result point positioning of the mini-LED backlight plate cannot be achieved.
[ utility model ]
The embodiment of the utility model provides a mini-LED dynamic backlight hardware performance detection device, which aims to solve the technical problems that in the prior art, power supply of a mini-LED backlight plate cannot be dynamically monitored, and a problem point cannot be accurately positioned in a test process.
In order to solve the technical problems, one technical scheme adopted by the embodiment of the utility model is as follows: the mini-LED dynamic backlight hardware performance detection device comprises an upper computer, a power supply module, a control module and a power detection module;
the upper computer is connected with the control module and is used for sending a test instruction to the control module and receiving and displaying a test result fed back by the control module;
the control module is respectively connected with the mini-LED backlight plate, the power supply module and the power detection module and is used for sending the test instruction to the mini-LED backlight plate so that the mini-LED backlight plate can be tested according to the test instruction, and in the process of testing the mini-LED backlight plate, test data of the power detection module are received, and a test result of the mini-LED backlight plate is determined based on the test data;
the power supply module is respectively connected with the power detection module and the mini-LED backlight plate and is used for supplying power to the mini-LED backlight plate, the power detection module and the control module;
the power detection module is connected with the mini-LED backlight plate and is used for detecting test data of the mini-LED backlight plate and sending the test data to the control module.
Optionally, the power detection module includes a power detection chip and a resistor R1;
the power detection chip is respectively connected with the control module and the power supply module, the first end of the resistor R1 is connected with the power supply module, and the second end of the resistor R1 is respectively connected with the mini-LED backlight plate and the power detection chip.
Optionally, the power detection module is a resistor R1;
the first end of the resistor R1 is respectively connected with the power supply module and the control module, and the second end of the resistor R1 is respectively connected with the mini-LED backlight plate and the control module.
Optionally, the control module is connected with the mini-LED backlight board through an SPI bus.
Optionally, the control module is connected with the upper computer through an RS232 bus.
Optionally, the power detection chip is connected with the control module through an IIC bus.
Optionally, the mini-LED dynamic backlight hardware performance detection device further comprises a dc converter;
the input end of the direct current converter is connected with the power supply module, and the output end of the direct current converter is respectively connected with the control module, the power detection chip and the mini-LED backlight plate.
Optionally, the power supply module includes a control interface;
the control interface of the power supply module is connected with the mini-LED backlight plate, and is used for receiving feedback voltage of the mini-LED backlight plate and providing power supply voltage for the mini-LED backlight plate based on the feedback voltage.
The utility model provides a mini-LED dynamic backlight hardware performance detection device, which is different from the condition of the related technology, and comprises an upper computer, a power supply module, a control module and a power detection module; the upper computer is connected with the control module and is used for sending a test instruction to the control module and receiving and displaying a test result fed back by the control module; the control module is respectively connected with the mini-LED backlight plate, the power supply module and the power detection module and is used for sending the test instruction to the mini-LED backlight plate so that the mini-LED backlight plate can be tested according to the test instruction, and in the process of testing the mini-LED backlight plate, test data of the power detection module are received, and a test result of the mini-LED backlight plate is determined based on the test data; the power supply module is respectively connected with the power detection module and the mini-LED backlight plate and is used for supplying power to the mini-LED backlight plate, the power detection module and the control module; the power detection module is connected with the mini-LED backlight plate and is used for detecting test data of the mini-LED backlight plate and sending the test data to the control module. Through the structure, the mini-LED backlight plate can be dynamically monitored in power supply, and the problem points are accurately positioned according to the detection result.
[ description of the drawings ]
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.
Fig. 1 is an application scenario provided in an embodiment of the present utility model;
FIG. 2 is a block diagram of a device for detecting the performance of mini-LED dynamic backlight hardware according to an embodiment of the present utility model;
FIGS. 3a-3b are block diagrams illustrating the structure of a power detection module according to an embodiment of the present utility model;
FIGS. 4a-4b are circuit diagrams of a mini-LED dynamic backlight hardware performance detection device provided by an embodiment of the utility model;
fig. 5 is a schematic diagram of an upper computer software module according to an embodiment of the present utility model.
[ detailed description ] of the utility model
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, if not in conflict, the features of the embodiments of the present utility model may be combined with each other, which are all within the protection scope of the present utility model. In addition, although the division of the functional modules is performed in the apparatus schematic, in some cases, the division of the modules may be different from that in the apparatus schematic.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.
Referring to fig. 1, fig. 1 is an application scenario provided by the embodiment of the present utility model, as shown in fig. 1, where the application scenario includes a mini-LED dynamic backlight hardware performance detection device 100 and a mini-LED backlight board 200, the mini-LED dynamic backlight hardware performance detection device 100 is connected to the mini-LED backlight board 200, and the mini-LED dynamic backlight hardware performance detection device 100 is configured to detect performance of the mini-LED backlight board.
Specifically, referring to fig. 2, fig. 2 is a block diagram of a mini-LED dynamic backlight hardware performance detection device according to an embodiment of the present utility model, and as shown in fig. 2, the mini-LED dynamic backlight performance detection device 100 includes an upper computer 11, a power supply module 12, a control module 13, and a power detection module 14.
The upper computer 11 is connected with the control module 13 and is used for sending a test instruction to the control module 13 and receiving and displaying a test result fed back by the control module 13;
the control module 13 is respectively connected with the mini-LED backlight board 200, the power supply module 12 and the power detection module 14, and is configured to send the test instruction to the mini-LED backlight board 200, so that the mini-LED backlight board 200 performs a test according to the test instruction, and in the process of testing the mini-LED backlight board 200, receive test data of the power detection module 14, and determine a test result of the mini-LED backlight board 200 based on the test data;
the power supply module 12 is respectively connected with the power detection module 14 and the mini-LED backlight board 200, and is used for supplying power to the mini-LED backlight board 200, the power detection module 14 and the control module 13;
the power detection module 14 is connected to the mini-LED backlight board 200, and is configured to detect test data of the mini-LED backlight board 200, and send the test data to the control module 13.
Further, referring to fig. 3a-3b, fig. 3a-3b are block diagrams of a power detection module according to an embodiment of the present utility model, as shown in fig. 3a, the power detection module 14 includes a power detection chip 141 and a resistor R1, the power detection chip 141 is respectively connected to the control module 13 and the power supply module 12, a first end of the resistor R1 is connected to the power supply module 12, and a second end of the resistor R1 is respectively connected to the mini-LED backlight board 200 and the power detection chip 141. The power detection chip 141 is connected to the control module 13 through an IIC bus.
In some embodiments, as shown in fig. 3b, the power detection module is a resistor R1; the first end of the resistor R1 is respectively connected with the power supply module 12 and the control module 13, and the second end of the resistor R1 is respectively connected with the mini-LED backlight board 200 and the control module 13.
In some embodiments, the control module 13 is connected to the mini-LED backlight board 200 through an SPI bus.
In some embodiments, the control module 13 is connected to the upper computer 11 through an RS232 bus.
In some embodiments, as shown in fig. 2, the mini-LED dynamic backlight hardware performance detection apparatus 100 further comprises a dc converter 15. The input end of the DC converter 15 is connected with the power supply module 12, and the output end of the DC converter 15 is respectively connected with the control module 13, the power detection module 14 and the mini-LED backlight board 200.
In some embodiments, the power module 12 includes a control port, and the control interface of the power module 12 is configured to receive a feedback voltage of the mini-LED backlight panel 200 and provide a power supply voltage to the mini-LED backlight panel 200 based on the feedback voltage.
Referring to fig. 4a-4b, fig. 4a-4b are circuit diagrams of a mini-LED dynamic backlight hardware performance detection device according to an embodiment of the present utility model, as shown in fig. 4a-4b, in a testing process of the mini-LED dynamic backlight hardware performance detection device 200, an upper computer 11 (upper pc) sets different current values, and writes the current values into a control module 13 (MCU) in sequence. The control module 13 sends the current value to a mini-LED backlight BOARD 200 (LED BOARD) based on the SPI bus after receiving the current value; when the mini-LED backlight board 200 receives the different current values, a required feedback voltage is determined based on the current values, and the feedback voltage is sent to the power supply module 12 (power board) and the control module 13 through FB lines, respectively, and after receiving the feedback voltage, the power supply module 12 outputs a power supply voltage to the mini-LED backlight board 200 based on the feedback voltage. Wherein, the power supply voltage refers to V-LED-IN or V-LED-OUT. At this time, the power detection module 14 obtains the test data of the mini-LED backlight board, so as to send the test data to the control module 13, so that the control module 13 sends the test data to the upper computer 11 for display, thereby realizing the real-time monitoring of the backlight power supply of the mini-LED backlight board 200.
When the power detection module 14 is a power detection chip 141 (INA 226) and a resistor R1, as shown in fig. 4a, the power supply module 12 monitors the power supply voltage and collects the power supply current through the resistor R1 when outputting the power supply voltage according to the feedback voltage, inputs the power supply voltage and the power supply current to the power detection chip 141 to calculate power, and finally inputs the calculated power to the control module 13.
Further, as shown in fig. 4b, when the power detection module 14 is a resistor R1, the resistor R1 may collect a supply voltage and a supply current of the mini-LED backlight board and send the supply voltage and the supply current to the control module 13, and the control module 13 calculates the power of the mini-LED backlight board 200 based on the feedback voltage, the supply current and the supply voltage and sends the power, the feedback voltage and the supply voltage to the upper computer 11 through the RS323 bus, so as to realize real-time monitoring of backlight power supply of the mini-LED backlight board 200. It should be noted that, when the power detection module 14 is the resistor R1, the test data is the power supply voltage and the power supply current of the mini-LED backlight board; when the power detection module 14 includes the power detection chip 141 and a resistor R1, the test data is the power calculated by the power detection chip 141.
In some embodiments, as shown in fig. 4a-4b, the mini-LED dynamic backlight hardware performance detection device further includes a direct current converter 15 (DCDC), where the direct current converter is configured to convert the current output by the power supply module 12, and input the converted current to the control module 13 and the mini-LED backlight board 200, respectively. Wherein, as shown in fig. 4b, when the power detection module 14 includes a power detection chip 141, the dc converter 15 is further connected to the power detection chip 141.
The mini-LED backlight board 200 is provided with two power supplies, and the two power supplies are used for supplying power to the control device of the mini-LED backlight board 200. The two power supplies are respectively directly input to the mini-LED backlight board 200 through the power supply module 12, and are input to the mini-LED backlight board 200 after being processed by the dc converter 15. Optionally, the voltage output by the power supply module 12 is 12V, and the voltage output by the dc converter 15 is 3.3V. It should be noted that, in addition to the above two power supplies, the mini-LED backlight panel further includes a third power supply, where the third power supply is set by the feedback voltage, and the third power supply is bridged to the mini-LED backlight panel 200 by the power detection module 14 and provides a power supply voltage required for lighting the mini-LED backlight panel.
Referring to fig. 5, fig. 5 is a schematic diagram of an upper computer software module provided in an embodiment of the present utility model, as shown in fig. 5, the vled+ is a supply voltage, the VFB is a feedback voltage, and during a test process, the upper computer 11 sets different current values through the software module and writes the different current values into the control module 13. Test data including vled+, VFB and power fed back by the control module 13 are also received in real time during the test. And writing the test data into the software module in turn for display.
In some embodiments, if the detection abnormality occurs during the testing process of the mini-LED backlight board 200, the corresponding error cause, that is, the problem point of the mini-LED backlight board 200, will be marked on the upper computer 11 after the detection is completed. The error reasons in the detection process include problems such as short circuit of the LED, open circuit of the LED, and communication error of the SPI, which are specifically shown in fig. 4. Further, after the test of the mini-LED backlight board 200 is finished, the upper computer 11 also displays the test result of the mini-LED backlight board 200. As shown in fig. 4, when the test of the mini-LED backlight 200 is successfully completed, the test result field displays "pass", and if a problem occurs in the test process, the test result field displays "NG", and based on this, the problem point of the mini-LED backlight 200 can be accurately located, thereby improving the detection efficiency.
In some embodiments, the mini-LED dynamic backlight hardware performance detection device 100 may further detect a dynamic backlight effect of the mini-LED backlight board 200, as shown in fig. 4, select an "aging" mode on a software module of the host computer 11, so that the host computer 11 changes an output mode, and thus send a test picture to the mini-LED backlight board 200 for display, and then determine whether the test picture is consistent with an expected effect by manually observing a display result of the mini-LED backlight board 200.
The embodiment of the utility model provides a mini-LED dynamic backlight hardware performance detection device, which comprises an upper computer, a power supply module, a control module and a power detection module; the upper computer is connected with the control module and is used for sending a test instruction to the control module and receiving and displaying a test result fed back by the control module; the control module is respectively connected with the mini-LED backlight plate, the power supply module and the power detection module and is used for sending the test instruction to the mini-LED backlight plate so that the mini-LED backlight plate can be tested according to the test instruction, and in the process of testing the mini-LED backlight plate, test data of the power detection module are received, and a test result of the mini-LED backlight plate is determined based on the test data; the power supply module is respectively connected with the power detection module and the mini-LED backlight plate and is used for supplying power to the mini-LED backlight plate, the power detection module and the control module; the power detection module is connected with the mini-LED backlight plate and is used for detecting test data of the mini-LED backlight plate and sending the test data to the control module. Through the structure, the mini-LED backlight plate can be dynamically monitored in power supply, and the problem points are accurately positioned according to the detection result.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (8)
1. The mini-LED dynamic backlight hardware performance detection device is characterized by comprising an upper computer, a power supply module, a control module and a power detection module;
the upper computer is connected with the control module and is used for sending a test instruction to the control module and receiving and displaying a test result fed back by the control module;
the control module is respectively connected with the mini-LED backlight plate, the power supply module and the power detection module and is used for sending the test instruction to the mini-LED backlight plate so that the mini-LED backlight plate can be tested according to the test instruction, and in the process of testing the mini-LED backlight plate, test data of the power detection module are received, and a test result of the mini-LED backlight plate is determined based on the test data;
the power supply module is respectively connected with the power detection module and the mini-LED backlight plate and is used for supplying power to the mini-LED backlight plate, the power detection module and the control module;
the power detection module is connected with the mini-LED backlight plate and is used for detecting test data of the mini-LED backlight plate and sending the test data to the control module.
2. The mini-LED dynamic backlight hardware performance detection device according to claim 1, wherein the power detection module comprises a power detection chip and a resistor R1;
the power detection chip is respectively connected with the control module and the power supply module, the first end of the resistor R1 is connected with the power supply module, and the second end of the resistor R1 is respectively connected with the mini-LED backlight plate and the power detection chip.
3. The mini-LED dynamic backlight hardware performance detection device of claim 1, wherein the power detection module is a resistor R1;
the first end of the resistor R1 is respectively connected with the power supply module and the control module, and the second end of the resistor R1 is respectively connected with the mini-LED backlight plate and the control module.
4. The mini-LED dynamic backlight hardware performance detection device of claim 1, wherein the control module is connected to the mini-LED backlight board through an SPI bus.
5. The mini-LED dynamic backlight hardware performance detection device according to claim 1, wherein the control module is connected with the upper computer through an RS232 bus.
6. The mini-LED dynamic backlight hardware performance detection device of claim 2, wherein the power detection chip is connected to the control module via an IIC bus.
7. The mini-LED dynamic backlight hardware performance detection device of claim 6, further comprising a dc converter;
the input end of the direct current converter is connected with the power supply module, and the output end of the direct current converter is respectively connected with the control module, the power detection chip and the mini-LED backlight plate.
8. The mini-LED dynamic backlight hardware performance detection device of claim 1, wherein the power module comprises a control interface;
the control interface of the power supply module is connected with the mini-LED backlight plate, and is used for receiving feedback voltage of the mini-LED backlight plate and providing power supply voltage for the mini-LED backlight plate based on the feedback voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320841684.2U CN219871651U (en) | 2023-04-14 | 2023-04-14 | Mini-LED dynamic backlight hardware performance detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320841684.2U CN219871651U (en) | 2023-04-14 | 2023-04-14 | Mini-LED dynamic backlight hardware performance detection device |
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| CN219871651U true CN219871651U (en) | 2023-10-20 |
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| CN202320841684.2U Active CN219871651U (en) | 2023-04-14 | 2023-04-14 | Mini-LED dynamic backlight hardware performance detection device |
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