CN215180554U - Testing device and testing system for detecting display module - Google Patents
Testing device and testing system for detecting display module Download PDFInfo
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- CN215180554U CN215180554U CN202120610771.8U CN202120610771U CN215180554U CN 215180554 U CN215180554 U CN 215180554U CN 202120610771 U CN202120610771 U CN 202120610771U CN 215180554 U CN215180554 U CN 215180554U
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Abstract
The utility model discloses a testing arrangement and test system for detecting display device, testing arrangement includes main control base plate, test substrate and the switching base plate of range upon range of setting, wherein the main control base plate, through flexible flat cable with the test substrate electricity is connected for according to the external instruction of receipt generate corresponding master control signal to the test substrate; the test substrate is electrically connected with the switching substrate through a flexible circuit board and used for outputting test signals to the switching substrate according to the master control signals; the switching substrate is electrically connected with the display module to be tested through a connector and is used for switching the test signal to the display module to be tested. The utility model provides an embodiment can solve among the prior art because of the display module assembly that awaits measuring uses the probe subassembly to be connected to have the bad problem of crimping, has practical application and worth.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a testing arrangement and test system for detecting display module assembly.
Background
In display device's screen production test process, because adopt the probe subassembly to connect between testing arrangement and the display module assembly that awaits measuring, there is the problem of crimping failure easily to influence test signal's transmission efficiency, the on-the-spot maintenance of the staff of not being convenient for simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above problems, the present invention provides a testing device for detecting a display module, including a main control substrate, a testing substrate and a switching substrate, wherein the main control substrate, the testing substrate and the switching substrate are stacked, and the switching substrate is disposed on the main control substrate
The main control substrate is electrically connected with the test substrate through a flexible flat cable and used for generating a corresponding main control signal to the test substrate according to a received external instruction;
the test substrate is electrically connected with the switching substrate through a flexible circuit board and used for outputting test signals to the switching substrate according to the master control signals;
the switching substrate is electrically connected with the display module to be tested through a connector and is used for switching the test signal to the display module to be tested.
In some specific embodiments, the main control substrate includes a control substrate and a display driving substrate disposed in one plane, wherein
The control substrate is electrically connected with the display driving substrate through a connector and is used for transmitting a display instruction of a received external instruction to the display driving substrate through the connector, generating a corresponding control signal from the control instruction of the received external instruction and transmitting the control signal to the test substrate through a flexible flat cable;
and the display driving substrate is used for generating a corresponding display signal according to the received display instruction and transmitting the display signal to the test substrate through a flexible flat cable.
In some specific embodiments, the control substrate includes a control module, configured to parse the control instruction and generate a corresponding control signal, and output the control signal to the test substrate.
In some specific embodiments, the test substrate comprises a signal enhancement module for enhancing the control signal and/or the display signal and generating the test signal.
In some specific embodiments, the test signal includes a timing signal and a communication signal corresponding to the control signal and/or the display signal.
In some specific embodiments, the control signal includes a display control signal and a touch control signal.
In some specific embodiments, the control substrate further includes a power module, configured to provide a first voltage signal to the display driving substrate, provide a second voltage signal to the test substrate, and provide a third voltage signal to the display module to be tested.
In some specific embodiments, the control substrate further includes a detection module, configured to receive and detect a feedback signal, where the feedback signal is output by the display module to be tested in response to the test signal and is transmitted to the control substrate through the adapter substrate and the test substrate in sequence.
In some specific embodiments, the main control substrate further includes a USB interface for communicating with an external device.
The utility model discloses the second aspect provides a test system for detecting display module assembly, including the first aspect testing arrangement and with the terminal equipment that the testing arrangement electricity is connected, wherein
And the terminal equipment is used for sending a test instruction to a main control substrate of the test device and acquiring a feedback signal from the main control substrate.
The utility model has the advantages as follows:
aiming at the existing problems at present, the utility model provides a testing device and a testing system for detecting a display module, which make up the problems in the prior art by arranging a main control substrate, a testing substrate and a switching substrate in a stacking way, electrically connecting the main control substrate and the testing substrate through a flexible flat cable, electrically connecting the testing substrate with the switching substrate through a flexible circuit board, and electrically connecting the switching substrate with the display module to be detected through a connector, can fully utilize the characteristics of flexible flat cable and flexible circuit board, convenient disassembly, good electromagnetic shielding performance and the like, ensure the signal transmission between the testing device and the display module to be detected in a limited space, solve the problem of poor pressure connection caused by the probe assembly connection between the display module to be detected and the testing device in the prior art, effectively simplify the wiring layout of detection signal wires, thereby making up the problems in the prior art, the structure complexity of the detection device is reduced, the production test operation is simplified, the production efficiency is improved, the production cost is reduced, and the detection device has practical application value.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a block diagram of a testing apparatus according to an embodiment of the present invention;
fig. 2 shows a block diagram of a test system according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a testing apparatus according to an embodiment of the present invention.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a testing apparatus 10 for testing a display module, which includes a main control substrate 101, a testing substrate 102 and a switching substrate 103, wherein the main control substrate, the testing substrate and the switching substrate are stacked, and the main control substrate and the switching substrate are stacked together
The main control substrate 101 is electrically connected with the test substrate 102 through a flexible flat cable, and is configured to generate a corresponding main control signal to the test substrate 102 according to a received external instruction;
the test substrate 102 is electrically connected to the adapter substrate 103 through a flexible circuit board, and is configured to output a test signal to the adapter substrate 103 according to the master control signal;
the switching substrate 103 is electrically connected to the display module to be tested through a connector, and is configured to switch the test signal to the display module to be tested.
In this embodiment, the main control substrate 101, the test substrate 102 and the adapting substrate 103 are stacked to transmit signals between the test apparatus 10 and the display module to be tested in a limited space, and the main control substrate 101 and the test substrate 102 are electrically connected through the flexible flat cable, the test substrate 102 and the adapting substrate 103 are electrically connected through the flexible circuit board, and the adapting substrate 103 and the display module to be tested are electrically connected through the connector, so that the flexible flat cable and the flexible circuit board can be fully utilized, the flexible flat cable and the flexible circuit board are convenient to disassemble, the electromagnetic shielding performance is good, the problem of poor crimping caused by the fact that the display module to be tested and the test apparatus are connected through the probe assembly in the prior art can be solved, the layout and routing of the detection signal lines are effectively simplified, the problems in the prior art are solved, the structural complexity of the detection apparatus is reduced, the production test operation is simplified, and the detection operation is simplified, Improves the production efficiency and reduces the production cost, and has practical application value.
In a specific example, as shown in fig. 2, a test system 100 is shown, and includes a test apparatus 10 and a terminal device 20, where the terminal device 20 may be a computer, a mobile terminal, a test terminal, and the like capable of sending a test instruction, and the terminal device 20 is electrically connected to the test apparatus 10, and is configured to send the test instruction to a main control substrate 101 of the test apparatus 10, and obtain a detection feedback signal from the main control substrate 101, so as to complete a test on a display module to be tested.
As shown in fig. 1 and 3, the master substrate 101, the test substrate 102, and the relay substrate 103 are disposed in a stacked arrangement in consideration of the available space of the test apparatus 10 on the production line.
Meanwhile, the main control substrate 101 and the test substrate 102 are electrically connected through the flexible flat cable, and accurate transmission of the main control signal is ensured by utilizing the characteristics of flexibility, convenience in disassembly and good electromagnetic shielding performance of the flexible flat cable.
In an alternative embodiment, as shown in fig. 3, the main control substrate 101 includes a control substrate and a display driving substrate disposed in a plane, where the control substrate is electrically connected to the display driving substrate through a connector, and is configured to transmit a display instruction of a received external instruction to the display driving substrate through the connector, and generate a corresponding control signal from the control instruction of the received external instruction and transmit the control signal to the test substrate 102 through a flexible flat cable; the display driving substrate is configured to generate a corresponding display signal according to the received display instruction and transmit the display signal to the test substrate 102 through a flexible flat cable.
In the present embodiment, by arranging the control substrate and the display driving substrate in a single plane, the external command received by the control substrate is generated into a corresponding control signal, the display command received by the display driving substrate is generated into a corresponding display signal, and stable signal transmission is realized through the Flexible Flat Cable (FFC) electrically connected to the test substrate 102 while ensuring that the relative positions of the control substrate and the display driving substrate are not changed.
Meanwhile, the control substrate and the display driving substrate which are structurally and separately arranged are used for respectively processing control instructions and display instructions which are input from the outside, for example, the control substrate is used for processing opening signals or closing signals, and the display module to be tested is correspondingly opened or closed; processing the display instructions and generating corresponding display signals, including signals displaying different images, for example, by a display driver substrate; that is, the data line of the terminal device 20 outputting the test instruction is disposed on the main control substrate 101, so that partial wiring is shunted by the main control substrate 101, and the problem of complicated wiring caused by excessive signal lines in the prior art is solved.
In addition, the control substrate and the display driving substrate are electrically connected through a connector, in this embodiment, the connector is a B2B (board-to-board) connector, and the display driving substrate has the characteristics of small size, easiness in plugging and pulling, high difficulty in plugging and pulling alignment and the like, and can realize accurate transmission of signals.
In an alternative embodiment, as shown in fig. 3, the control substrate includes a control module, configured to parse the control command and generate a corresponding control signal, and output the control signal to the test substrate 102.
Specifically, the control signal includes a display control signal and a touch control signal. For example, the external instruction is a display instruction for detecting the display performance of the display module to be tested, and the control module generates a display control signal according to the display instruction; and for example, the external instruction is a touch instruction for detecting the touch performance of the display module to be detected, and the control module generates a touch control signal according to the touch instruction.
In the present embodiment, the test substrate 102 and the relay substrate 103 are electrically connected by a flexible circuit board (FPC), and synchronous transmission of a large number of signals can be realized.
In an alternative embodiment, the test substrate 102 includes a signal enhancement module for enhancing the control signal and/or the display signal and generating the test signal.
Specifically, considering that the control signal and the display signal are micro signals, a signal enhancement module is disposed on the test substrate 102 to amplify the input control signal or the display signal, or the control signal and the display signal, so as to further improve the stability and accuracy of signal transmission.
In this embodiment, the test signal includes a timing signal and a communication signal corresponding to the control signal and/or the display signal.
Specifically, the test substrate 102 further generates a test signal suitable for the display module to be tested to receive according to the received control signal and the display signal, so that the display module to be tested completes the test according to the timing signal and the communication signal of the test signal: for example, a touch timing signal and a touch communication signal are further generated according to the touch control signal, so that the display module to be tested completes a touch test according to the touch timing signal and the touch communication signal.
In this embodiment, the adapter substrate 103 and the display module to be tested are electrically connected through a connector, where the connector is a B2B (board-to-board) connector, and has the characteristics of small size, easy plugging and unplugging, high difficulty in plugging and unplugging alignment, and the like, thereby facilitating frequent replacement of the display module to be tested and ensuring accurate transmission of test signals; the problem of have the crimping harmfully because of the display module assembly that awaits measuring uses the probe subassembly to be connected with testing arrangement among the prior art can be solved.
In an optional embodiment, as shown in fig. 3, the control substrate further includes a power module, configured to provide a first voltage signal to the display driving substrate, provide a second voltage signal to the test substrate 102, and provide a third voltage signal to the display module to be tested.
Specifically, the control substrate is connected to an externally input power signal, and generates voltage signals suitable for the display driving substrate, the test substrate 102 and the display module to be tested to operate through the power module, and transmits the voltage signals through the flexible flat cable, the flexible circuit board and the connector.
In an optional embodiment, as shown in fig. 3, the control substrate further includes a detection module, configured to receive and detect a feedback signal, where the feedback signal is output by the display module to be tested in response to the test signal and is transmitted to the control substrate through the switch substrate 103 and the test substrate 102 in sequence.
Specifically, when the control substrate transmits the control signal to the test substrate 102 and transmits the control signal to the display module to be tested through the switch substrate 103, the display module to be tested outputs a feedback signal in response to the control signal, and transmits the feedback signal to the detection module of the control substrate through the switch substrate 103 and the test substrate 102, so that whether the feedback signal meets the detection requirement is conveniently detected.
In an optional embodiment, to implement communication between the test main control substrate 101 and an external device, the main control substrate 101 further includes a USB interface.
In this embodiment, a USB interface is provided on the control substrate, and communicates with an external device through a USB cable. When the external device is the terminal device 20 in the test system, the control substrate communicates with the terminal device 20 through the USB cable. It should be noted that, in the present application, the setting position of the USB interface is not specifically limited, and those skilled in the art should select an appropriate position setting according to actual application requirements to satisfy the communication between the main control substrate 101 and an external device, such as the terminal device 20, as a design criterion, which is not described herein again.
Aiming at the existing problems at present, the utility model provides a testing device and a testing system for detecting a display module, which make up the problems in the prior art by arranging a main control substrate, a testing substrate and a switching substrate in a stacking way, electrically connecting the main control substrate and the testing substrate through a flexible flat cable, electrically connecting the testing substrate with the switching substrate through a flexible circuit board, and electrically connecting the switching substrate with the display module to be detected through a connector, can fully utilize the characteristics of flexible flat cable and flexible circuit board, convenient disassembly, good electromagnetic shielding performance and the like, ensure the signal transmission between the testing device and the display module to be detected in a limited space, solve the problem of poor pressure connection caused by the probe assembly connection between the display module to be detected and the testing device in the prior art, effectively simplify the wiring layout of detection signal wires, thereby making up the problems in the prior art, the structure complexity of the detection device is reduced, the production test operation is simplified, the production efficiency is improved, the production cost is reduced, and the detection device has practical application value.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. The utility model provides a testing arrangement for detecting display module assembly which characterized in that, including range upon range of master control base plate, test substrate and the switching base plate that sets up, wherein
The main control substrate is electrically connected with the test substrate through a flexible flat cable and used for generating a corresponding main control signal to the test substrate according to a received external instruction;
the test substrate is electrically connected with the switching substrate through a flexible circuit board and used for outputting test signals to the switching substrate according to the master control signals;
the switching substrate is electrically connected with the display module to be tested through a connector and is used for switching the test signal to the display module to be tested.
2. The test device as claimed in claim 1, wherein the main control substrate comprises a control substrate and a display driving substrate disposed in a plane, wherein
The control substrate is electrically connected with the display driving substrate through a connector and is used for transmitting a display instruction of a received external instruction to the display driving substrate through the connector, generating a corresponding control signal from the control instruction of the received external instruction and transmitting the control signal to the test substrate through a flexible flat cable;
and the display driving substrate is used for generating a corresponding display signal according to the received display instruction and transmitting the display signal to the test substrate through a flexible flat cable.
3. The testing device of claim 2, wherein the control substrate comprises a control module configured to parse the control command and generate a corresponding control signal, and output the control signal to the testing substrate.
4. The test device of claim 3, wherein the test substrate comprises a signal enhancement module to enhance the control signal and/or the display signal and generate the test signal.
5. The test apparatus according to claim 4, wherein the test signal includes a timing signal and a communication signal corresponding to the control signal and/or the display signal.
6. The test device of claim 2, wherein the control signals comprise display control signals and touch control signals.
7. The testing device as claimed in claim 2, wherein the control substrate further comprises a power module for providing a first voltage signal to the display driving substrate, providing a second voltage signal to the testing substrate, and providing a third voltage signal to the display module under test.
8. The testing device as claimed in claim 2, wherein the control substrate further comprises a detection module for receiving and detecting a feedback signal, wherein the feedback signal is a signal output by the display module under test in response to the testing signal, and is transmitted to the control substrate via the switch substrate and the testing substrate in sequence.
9. The test device as claimed in any one of claims 1 to 8, wherein the master substrate further comprises a USB interface for communicating with an external device.
10. A test system for testing a display module, comprising a test apparatus according to any one of claims 1 to 9, and a terminal device electrically connected to the test apparatus, wherein
And the terminal equipment is used for sending a test instruction to a main control substrate of the test device and acquiring a feedback signal from the main control substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610771.8U CN215180554U (en) | 2021-03-25 | 2021-03-25 | Testing device and testing system for detecting display module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610771.8U CN215180554U (en) | 2021-03-25 | 2021-03-25 | Testing device and testing system for detecting display module |
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| Publication Number | Publication Date |
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| CN215180554U true CN215180554U (en) | 2021-12-14 |
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| CN202120610771.8U Active CN215180554U (en) | 2021-03-25 | 2021-03-25 | Testing device and testing system for detecting display module |
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- 2021-03-25 CN CN202120610771.8U patent/CN215180554U/en active Active
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