CN217931862U - Display module test circuit - Google Patents
Display module test circuit Download PDFInfo
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- CN217931862U CN217931862U CN202221877635.6U CN202221877635U CN217931862U CN 217931862 U CN217931862 U CN 217931862U CN 202221877635 U CN202221877635 U CN 202221877635U CN 217931862 U CN217931862 U CN 217931862U
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Abstract
The utility model provides a display module test circuit, which comprises a signal input module, a signal output module and a signal processing module, wherein the signal input module comprises an input port which is used for receiving a test signal; the input end of the control module is electrically connected with the output end of the signal input module; the signal output module comprises a plurality of output ports which are respectively and electrically connected with the output end of the control module; the signal input module is used for transmitting the test signal received by the input port to the control module, the control module is used for splitting the test signal into a plurality of test sub-signals and correspondingly transmitting the test sub-signals to a plurality of output ports respectively, and the signal output module transmits the test sub-signals to the display module through the output ports so as to test the display module. This application only needs under the prerequisite that sets up a set of data transmission line, just can accomplish the test to each function of display module assembly, and easy operation, convenient has promoted efficiency of software testing simultaneously by a wide margin.
Description
Technical Field
The utility model relates to a USB circuit technical field, in particular to display module assembly test circuit.
Background
With the progress of science and technology and the rapid development of productivity, smart phones are popularized in daily life of people, so that people can carry out remote conversation and video, and great convenience is brought to the life of people.
The display module is one of important parts of the mobile phone and is used for displaying images required by a user. Present display module assembly all need carry out functional test before dispatching from the factory to guarantee display module assembly's product quality, however, prior art need test display module assembly's different functions respectively through the different signal transmission line of multiunit simultaneously, and it is loaded down with trivial details to lead to the testing process, has increased the cost of test simultaneously, is unfavorable for display module assembly's large-scale production.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a display module assembly test circuit to solve prior art needs to test display module assembly's different functions respectively through the different signal transmission line of multiunit simultaneously, lead to the testing process loaded down with trivial details, increased the problem of test cost simultaneously.
The embodiment of the utility model provides an aspect provides a display module assembly test circuit, the circuit includes:
the signal input module comprises an input port, and the input port is used for receiving a test signal;
the input end of the control module is electrically connected with the output end of the signal input module;
the signal output module comprises a plurality of output ports, and the output ports are respectively electrically connected with the output end of the control module;
the signal input module is used for transmitting the test signal received by the input port to the control module, the control module is used for splitting the test signal into a plurality of test sub-signals and correspondingly transmitting the test sub-signals to the output ports respectively, and the signal output module transmits the test sub-signals to the display module through the output ports so as to test the display module.
The utility model has the advantages that: the input and output of the test signal can be correspondingly completed by respectively arranging the signal input module, the control module and the signal output module, in the actual working process, the test signal issued by the computer can be received through the input port of the signal input module, further, the current signal input module transmits the received test signal to the control module, meanwhile, the control module can correspondingly split the received test signal into a plurality of test sub-signals and correspondingly transmit the current test sub-signals to a plurality of output ports of the signal output module, and finally, each test sub-signal is transmitted to the test equipment connected with the display module through the current plurality of output ports, so that the current test equipment respectively performs corresponding test on each function of the current display module according to each test sub-signal received in real time, and therefore, the test on each function of the display module can be completed only on the premise of arranging a group of data transmission lines.
Preferably, the signal input module includes a first USB port, the control module includes a control chip, and a D-pin and a D + pin of the first USB port are electrically connected to a UDM pin and a UDP pin of the control chip, respectively.
Preferably, the VCC pin of the first USB port is electrically connected with a first power supply, and a fuse is arranged between the VCC pin of the first USB port and the first power supply.
Preferably, the signal output module includes a plurality of second USB ports, and the plurality of second USB ports are electrically connected to the DM4 pin, the DP4 pin, the DM3 pin, the DP3 pin, the DM2 pin, and the DP2 pin of the control chip, respectively.
Preferably, the REF pin of the control chip is electrically connected to one end of the first resistor, and the other end of the first resistor is grounded.
Preferably, the GND pin and the V33 pin of the control chip are electrically connected to a filter circuit, and the filter circuit includes a first capacitor and a second capacitor connected in parallel.
Preferably, the VCC pin of the control chip is electrically connected to one end of the second resistor, and the other end of the second resistor is electrically connected to the second power supply.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block diagram of a display module testing circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a display module testing circuit according to an embodiment of the present invention.
Description of the main element symbols:
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10 | |
20 |
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30 | |
11 |
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21 | |
40 |
| Second USB port | 31 | A |
50 |
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60 | |
70 |
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80 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-2, it is shown that an embodiment of the utility model provides a display module assembly test circuit, this display module assembly test circuit who implements to provide only need under the prerequisite that sets up a set of data transmission line, just can accomplish the test to each function of display module assembly, and easy operation, convenient has simultaneously promoted the efficiency of software testing to display module assembly by a wide margin, is applicable to on a large scale popularization and use.
Specifically, the display module test circuit that this embodiment provided specifically includes:
a signal input module 10, including an input port for receiving a test signal;
the input end of the control module is electrically connected with the output end of the signal input module;
the signal output module 30 comprises a plurality of output ports, and the output ports are respectively electrically connected with the output end of the control module;
the signal input module 10 is configured to transmit the test signal received by the input port to the control module 20, the control module 20 is configured to split the test signal into a plurality of test sub-signals, and correspondingly transmit the plurality of test sub-signals to the plurality of output ports, respectively, and the signal output module 30 transmits the plurality of test sub-signals to the display module through the plurality of output ports, so as to test the display module.
In this embodiment, as shown in fig. 1 to 2, it is first described that the display module testing circuit provided in this embodiment is specifically applied between a computer for testing a display module and a testing apparatus for testing a display module, wherein during an actual testing process, the display module is electrically connected to the testing apparatus, so as to complete testing of the display module in the testing apparatus.
Further, in this embodiment, as shown in fig. 2, it should be noted that, in order to improve the testing efficiency of the display module, the testing circuit of the display module provided in this embodiment only has one set of transmission line, and the signal input module 10 is disposed at one end of the transmission line, and the signal output module 30 is disposed at the other end of the transmission line, in addition, the transmission line is electrically connected to the control module 20, wherein the signal input module 10 is configured to transmit the received testing signal to the control module 20, the control module 20 splits the testing signal into a plurality of testing sub-signals, and correspondingly transmits the current plurality of testing sub-signals to the signal output module 30, and finally transmits the plurality of testing sub-signals to the testing device through the signal output module 30, so as to complete the testing of the display module.
Specifically, in the present embodiment, as shown in fig. 2, it should be noted that, for convenience of implementation, the signal input module 10 provided in the present embodiment includes a first USB port 11, and further, the control module 20 includes a control chip 21, and when connected, a D-pin and a D + pin of the first USB port 11 are electrically connected to a UDM pin and a UDP pin of the control chip 21, respectively. Meanwhile, the VCC pin of the first USB port 11 provided in this embodiment is electrically connected to a first power supply, and a fuse 40 is disposed between the VCC pin of the first USB port 11 and the first power supply, so that the first USB port can be prevented from being burned out in the actual use process, and the service life of the display module testing circuit is correspondingly prolonged.
Further, in the present embodiment, as shown in fig. 2, it is noted that the signal output module 30 provided in the present embodiment includes a plurality of second USB ports 31, and in the specific implementation, the plurality of second USB ports 31 are electrically connected to the DM4 pin, the DP4 pin, the DM3 pin, the DP3 pin, the DM2 pin, and the DP2 pin of the control chip 20, respectively. Preferably, in the embodiment, it should be noted that the signal output module 30 provided in the embodiment specifically includes three second USB ports 31, wherein a first of the second USB ports 31 is electrically connected to the DM4 pin and the DP4 pin of the control chip 20, a second of the second USB ports 31 is electrically connected to the DM3 pin and the DP3 pin of the control chip 20, and a third of the second USB ports 31 is electrically connected to the DM2 pin and the DP2 pin of the control chip 20, so that the control chip 20 and the three second USB ports 31 can be effectively electrically connected together, in other cases, the second USB ports 31 can be further set to be four, five, six, and the like, which are within the protection scope of the embodiment.
In addition, in the present embodiment, as shown in fig. 2, it should be further noted that the REF pin of the control chip 20 provided in the present embodiment is electrically connected to one end of the first resistor 50, and meanwhile, the other end of the first resistor 50 is grounded, so that the function of protecting the circuit of the control chip can be performed. Further, in this embodiment, it should be noted that the GND pin and the V33 pin of the control chip 20 are electrically connected to a filter circuit, the filter circuit includes the first capacitor 60 and the second capacitor 70 that are connected in parallel, and the filter circuit is configured to avoid the control chip 20 from being interfered by an external signal, so as to ensure the stability of the transmission of the test signal and correspondingly improve the test efficiency. In addition, in the embodiment, the VCC pin of the control chip 20 is electrically connected to one end of the second resistor 80, and the other end of the second resistor 80 is electrically connected to the second power supply, so as to protect the control chip 20.
In specific implementation, the signal input module 10, the control module 20 and the signal output module 30 are respectively arranged to correspondingly complete input and output of a test signal, in an actual working process, the test signal issued by a computer can be received through an input port of the signal input module 10, further, the current signal input module 10 transmits the received test signal to the control module 20, meanwhile, the control module 20 can correspondingly split the received test signal into a plurality of test sub-signals and correspondingly transmit the current plurality of test sub-signals to a plurality of output ports of the signal output module 30, so that finally, the test sub-signals are transmitted to the test equipment connected with the display module through the current plurality of output ports, so that the current test equipment respectively performs corresponding tests on each function of the current display module according to each test sub-signal received in real time, and therefore, only on the premise of setting a group of data transmission lines, testing of each function of the display module can be completed, and meanwhile, the operation is simple and convenient, the testing efficiency of the display module is greatly improved, and the device is suitable for being popularized and used in a large range.
It should be noted that the above implementation process is only for illustrating the applicability of the present application, but this does not mean that the display module testing circuit of the present application has only the above implementation flow, and on the contrary, the display module testing circuit of the present application can be incorporated into the feasible embodiments of the present application as long as the display module testing circuit of the present application can be implemented.
To sum up, the utility model provides a display module assembly test circuit only needs under the prerequisite that sets up a set of data transmission line, just can accomplish the test to each function of display module assembly, and easy operation, convenient has promoted the efficiency of software testing to display module assembly simultaneously by a wide margin, is applicable to on a large scale popularization and use.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The utility model provides a display module assembly test circuit which characterized in that, the circuit includes:
the signal input module comprises an input port, and the input port is used for receiving a test signal;
the input end of the control module is electrically connected with the output end of the signal input module;
the signal output module comprises a plurality of output ports, and the output ports are respectively electrically connected with the output end of the control module;
the signal input module is used for transmitting the test signal received by the input port to the control module, the control module is used for splitting the test signal into a plurality of test sub-signals and correspondingly transmitting the test sub-signals to the output ports respectively, and the signal output module transmits the test sub-signals to the display module through the output ports so as to test the display module.
2. The display module testing circuit of claim 1, wherein: the signal input module comprises a first USB port, the control module comprises a control chip, and a D-pin and a D + pin of the first USB port are electrically connected with a UDM pin and a UDP pin of the control chip respectively.
3. The display module testing circuit of claim 2, wherein: the VCC pin electric connection of first USB port has first power, just is in the VCC pin of first USB port with be equipped with the fuse between the first power.
4. The display module testing circuit of claim 2, wherein: the signal output module comprises a plurality of second USB ports, and the second USB ports are electrically connected with a DM4 pin, a DP4 pin, a DM3 pin, a DP3 pin, a DM2 pin and a DP2 pin of the control chip respectively.
5. The display module test circuit of claim 2, wherein: the REF pin of the control chip is electrically connected with one end of the first resistor, and the other end of the first resistor is grounded.
6. The display module test circuit of claim 2, wherein: the GND pin and the V33 pin of the control chip are electrically connected with a filter circuit, and the filter circuit comprises a first capacitor and a second capacitor which are connected in parallel.
7. The display module test circuit of claim 2, wherein: the VCC pin of the control chip is electrically connected with one end of the second resistor, and the other end of the second resistor is electrically connected with a second power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877635.6U CN217931862U (en) | 2022-07-19 | 2022-07-19 | Display module test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877635.6U CN217931862U (en) | 2022-07-19 | 2022-07-19 | Display module test circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217931862U true CN217931862U (en) | 2022-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221877635.6U Active CN217931862U (en) | 2022-07-19 | 2022-07-19 | Display module test circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217931862U (en) |
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2022
- 2022-07-19 CN CN202221877635.6U patent/CN217931862U/en active Active
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