CN215527202U - Switching signal board, chuck type testing device and tool type testing device - Google Patents
Switching signal board, chuck type testing device and tool type testing device Download PDFInfo
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- CN215527202U CN215527202U CN202121776538.3U CN202121776538U CN215527202U CN 215527202 U CN215527202 U CN 215527202U CN 202121776538 U CN202121776538 U CN 202121776538U CN 215527202 U CN215527202 U CN 215527202U
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Abstract
This application is applicable to test technical field, provides a switching signal board, chuck formula testing arrangement and tool formula testing arrangement, and the switching signal board includes: the base plate, locate the power supply port on the base plate, the power master switch, at least one digital video standard interface, test module and at least one low voltage difference signal interface, the power master switch is connected with the power supply port, a power input for controlling switching signal board, at least one digital video standard interface carries out data communication with external display equipment, test module and digital video standard interface connection, a low voltage difference signal for converting the digital video standard signal who receives into, low voltage difference signal interface is connected with test module, a low voltage difference signal for exporting, through increasing the power master switch, realize the power-on to switching signal board, power-down control, the unreasonable problem of overall arrangement that the board exists is changeed to the point screen has been solved.
Description
Technical Field
The application belongs to the technical field of testing, especially relates to a switching signal board, chuck formula testing arrangement and tool formula testing arrangement.
Background
At each stage of development of a Panel (Panel) module product, a plurality of tests need to be performed on a screen produced by the module, and conventional work includes an initial board debugging report (EE report), an european standard detection report (EN report), problem analysis (ISSUE), and the like, and the work includes a Timing Controller (TCON) function test, an Inrush current (Inrush) measurement, a Ripple (Ripple) measurement, an efficiency measurement, a Timing measurement, and the like. When the test is carried out, welding work such as taking, loading, jumping and the like is required frequently, and as the Printed Circuit Board (PCB) is narrower, the packaging of components is smaller and smaller, the component layout is more and more compact, the welding difficulty is more and more large, a large amount of time is occupied, the efficiency is low, and the problems existing in the design cannot be found in time; on the other hand, the PCB is easy to be shorted out due to too many jumpers, so that safety risks exist, the module is damaged, waste is caused, and the tools frequently used for completing the test work are digital video standard interfaces/low voltage differential signal interfaces (DP-Edp/LVDS) and other point screen transfer boards.
However, the currently commonly used dot screen rotating plate has the problems of unreasonable layout and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present application provides a switching signal board, a chuck type testing device and a jig type testing device, which implement power-on and power-off control of the switching signal board by adding a power main switch, and solve the problem of unreasonable layout of the current point screen switching board.
The embodiment of the application provides a switching signal plate, which comprises a substrate, be equipped with the power supply port on the base plate, switching signal plate still includes:
the power supply main switch is arranged on the substrate, is connected with the power supply port and is used for controlling the power supply input of the switching signal plate;
at least one digital video standard interface arranged on the substrate and used for carrying out data communication with external display equipment and receiving digital video standard signals;
the test module is arranged on the substrate, is connected with the digital video standard interface and is used for converting the received digital video standard signal into a low-voltage differential signal;
and the low-voltage differential signal interface is arranged on the substrate, is connected with the test module and is used for outputting a low-voltage differential signal.
In one embodiment, the length of the substrate is less than or equal to 5cm and the width of the substrate is less than or equal to 5 cm.
In one embodiment, a voltage conversion module is further disposed on the substrate, and is connected to the power main switch and the test module, and configured to convert a power supply voltage input by the power supply port into a working voltage and output the working voltage to the test module.
In one embodiment, the substrate further has disposed thereon:
the first test welding pads are connected with the digital video standard interface;
a plurality of second test pads connected with the low voltage differential signal interface.
In one embodiment, the test module is a test chip.
In one embodiment, the substrate is further provided with a power-on control module, and the power-on control module is used for controlling the power-on operation of the test module.
In one embodiment, the substrate is further provided with a power-off control module, and the power-off control module is used for controlling the power-off operation of the test module.
In one embodiment, the substrate is a printed circuit board.
The embodiment of the present application further provides a chuck type testing device, including: a fixing assembly; and the adapter signal plate is used for fixing the adapter signal plate.
The embodiment of the present application further provides a fixture type testing device, including: a fixing assembly; testing the chuck; the switching signal plate is characterized in that the fixing assembly is used for fixing the switching signal plate, and the test chuck is connected with the switching signal plate.
The embodiment of the application provides a switching signal board, chuck formula testing arrangement and tool formula testing arrangement, the switching signal board includes: the base plate, locate the power supply port on the base plate, the power master switch, at least one digital video standard interface, test module and at least one low voltage difference signal interface, the power master switch is connected with the power supply port, a power input for controlling switching signal board, at least one digital video standard interface carries out data communication with external display equipment, test module and digital video standard interface connection, a low voltage difference signal for converting the digital video standard signal who receives into, low voltage difference signal interface is connected with test module, a low voltage difference signal for exporting, through increasing the power master switch, realize the power-on to switching signal board, power-down control, the unreasonable problem of overall arrangement that the board exists is changeed to the point screen has been solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an adapter plate according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an adapter signal plate according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of an adapter signal plate according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of an adapter signal plate according to a fourth embodiment of the present application;
fig. 5 is a schematic structural diagram of a chuck type testing apparatus according to a fifth embodiment of the present application;
fig. 6 is a schematic structural diagram of a fixture-type testing apparatus according to a sixth embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
Example one
In an embodiment of the present application, there is provided a switching signal plate, as shown in fig. 1, the switching signal plate includes: the device comprises a substrate 10, a power supply port 12 arranged on the substrate 10, a power main switch 11, at least one digital video standard interface 13, a test module 14 and at least one low voltage differential signal interface 15.
Specifically, the power main switch 11 is connected to the power supply port 12, the power supply port 12 is used for accessing a power supply, the power main switch 11 is used for controlling power supply input of the switching signal board, the digital video standard interface 13 is used for accessing an external display device and performing data communication with the external display device, for example, receiving a digital video standard signal (LVDS), the test module 14 is connected to the digital video standard interface 13 and is used for converting the received digital video standard signal into a low voltage differential signal (DP), the low voltage differential signal interface 15 is connected to the test module 14 and is used for outputting a low voltage differential signal, power-on and power-off control of the switching signal board is realized by adding the power main switch, and the problem of unreasonable layout of the point screen switching board is solved.
In a particular application, for example, at various stages of the development of a panel module product, numerous tests are required on the screen produced by the module. Welding work such as taking, loading, jumping and the like is frequently needed when testing work is carried out, as the PCB is narrower, the packaging of components is smaller and smaller, the component layout is more and more compact, the welding difficulty is more and more large, a large amount of time is occupied, the efficiency is low, and the problems existing in the design cannot be found in time; on the other hand, the PCBA is provided with too many jumpers which are easy to short circuit, so that safety risk is caused, and the module is damaged, thereby causing waste. Through increasing the power master switch on the switching signal board, realize the control of going up electricity, falling the electricity to the switching signal board, solved the unreasonable problem of overall arrangement that some screen commentaries on classics board exists.
In one embodiment, the length of the substrate 10 is less than or equal to 5cm and the width of the substrate 10 is less than or equal to 5 cm.
In this embodiment, the layout of the functional modules on the substrate 10 is optimized, and the power main switch 11 controls the signal conversion function of the switching signal board, so that the size of the substrate 10 can be reduced, and the small and portable purpose is achieved.
In a specific application, the optimization of the plurality of functional modules on the substrate 10 can achieve the effects of beauty, simplicity and portability by removing redundant functions on the substrate 10 and optimizing the layout of each module.
In a specific application, the switching signal plate can be used only as a signal conversion, and the size of the switching signal plate can be controlled within 5cm by removing functions irrelevant to the interconversion of the digital video standard signal/the low voltage differential signal.
Example two
Referring to fig. 2, a voltage conversion module 16 is further disposed on the substrate 10, and the voltage conversion module 16 is connected to the power main switch 11 and the test module 14, and is configured to convert a power supply voltage input by the power supply port 12 into a working voltage and output the working voltage to the test module 14.
In a specific application embodiment, the voltage conversion module 16 may further convert the power supply voltage into a plurality of operating voltage outputs with different voltage values, so as to provide corresponding power sources for integrating other functional modules on the substrate 10.
EXAMPLE III
Referring to fig. 3, in the present embodiment, a plurality of first test pads 31 and a plurality of second test pads 32 are disposed on the substrate 10, the plurality of first test pads 31 are connected to the digital video standard interface 13, and the plurality of second test pads 32 are connected to the low voltage differential signal interface 15.
In a specific application, the first test pad 31 and the second test pad 32 may be used for electrically connecting an external device to the substrate 10, so as to avoid the wear of the conductive wires of the substrate 10 caused by excessive test times.
In one embodiment, test module 14 may be a test chip.
The type of the test chip can be selected according to the signal conversion requirement, for example, the test chip can be an FPGA chip.
In one embodiment, functional tests such as Built-in Self Test (BIST), Content Adaptive backlight Control (cabac), COLOR enable signal (COLOR _ EN), external PWM, etc. may be integrated on the substrate 10, so as to avoid welding jumpers on the substrate 10.
In one embodiment, the model number of the test chip may be HX6310A or MST 7410.
In this embodiment, the test chip may convert the input LVDS signal into at least 2 DP signals for output, and in a specific application, the model of the test chip is not limited to the above example.
Example four
As shown in fig. 4, by providing the upper electronic control module 21 on the substrate 10, the upper electronic control module 21 can control the power-on operation of the test module 14, thereby more accurately measuring Inrush.
By arranging the power-off control module 22 on the substrate 10, the power-off control module 22 controls the power-off operation of the test module 14, so that the inrush current test is realized, jumper welding is avoided, and the space of the substrate 10 is saved.
In one embodiment, the substrate 10 may be a printed circuit board.
In this embodiment, the substrate 10 is a printed circuit board, and a peripheral circuit can be directly formed around the test chip by etching, so that not only can the jumper be avoided, the space of the signal adapter board be saved, but also the test efficiency can be improved.
Through the simple jig for manufacturing the switching signal board in the embodiment, when each path of current is tested, each path of current can be tested at one time under the condition of no jumper wire, and the efficiency of data recording is improved.
EXAMPLE five
The present embodiment provides a collet-type testing device, as shown in fig. 5, the collet-type testing device includes: a fixed component 51; and the switching signal plate 00 as described in any one of the above, the fixing member 51 is used for fixing the switching signal plate 00.
In a specific application, a circuit board to be tested is connected through a test chuck, a signal pin of the circuit board to be tested is electrically connected with a corresponding pin of the switching signal board 00, for example, when signals such as current or Irrush are tested, the resistance of a path to be tested can be removed firstly, then the test chuck is adopted to connect the path to be tested, each path of current is tested, other paths are in short circuit, the path to be tested is connected with an ammeter in series to detect the current value, and the like until all paths of current are tested.
If Irrush, ripple and other signals are tested, the test chuck can be used as a lead, and the test probe is directly connected to the clamp.
EXAMPLE six
The present embodiment provides a fixture type testing apparatus, which is shown in fig. 6, and the fixture type testing apparatus includes: a fixed component 52; a test chuck 53; and a patch panel 00 as described in any of the above; the fixing assembly 52 is used for fixing the switching signal plate 00, and the test chuck 53 is connected with the switching signal plate 00.
In one embodiment, the test cartridge 53 is assembled and connected to the patch panel 00, and then integrated with the ammeter, voltmeter, and fixture. During specific testing, the ohmic resistors of all to-be-tested channels can be removed firstly, and the plurality of chucks are connected with the corresponding pins respectively, so that current signals and voltage signals of the multi-channel can be measured at one time.
In specific application, the jig type test board can be connected with an upper computer, and a current signal and a voltage signal are sent to the upper computer, so that measurement data are recorded.
In the production process of Liquid Crystal Displays (LCDs), various performances of products need to be comprehensively tested, and manufacturers of LCDs need efficient test schemes due to numerous test items and huge yield. Because the on-contact (Pad) of the LCD Panel is fine and precise, and the on-lighting process is particularly precise and tedious, the requirement of the fast lighting fixture of the LCD Panel is very urgent. The chuck type testing device or the jig type testing device can realize the rapid test of the display,
in one embodiment, the upper computer may be a computer, and the measurement data is received by the computer and displayed in real time by a computer display screen.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides a switching signal plate, includes the base plate, be equipped with the power supply port on the base plate, its characterized in that, switching signal plate still includes:
the power supply main switch is arranged on the substrate, is connected with the power supply port and is used for controlling the power supply input of the switching signal plate;
at least one digital video standard interface arranged on the substrate and used for carrying out data communication with external display equipment and receiving digital video standard signals;
the test module is arranged on the substrate, is connected with the digital video standard interface and is used for converting the received digital video standard signal into a low-voltage differential signal;
and the low-voltage differential signal interface is arranged on the substrate, is connected with the test module and is used for outputting a low-voltage differential signal.
2. The patch signal plate of claim 1, wherein the length of the substrate is less than or equal to 5cm and the width of the substrate is less than or equal to 5 cm.
3. The patch signal board according to claim 1, wherein a voltage conversion module is further disposed on the substrate, and is connected to the main power switch and the test module, for converting the power supply voltage inputted from the power supply port into an operating voltage and outputting the operating voltage to the test module.
4. The patch signal plate according to claim 1, wherein the substrate further comprises:
the first test welding pads are connected with the digital video standard interface;
a plurality of second test pads connected with the low voltage differential signal interface.
5. The patch panel of claim 1, wherein the test module is a test chip.
6. The patch signal board of claim 1, wherein the substrate further comprises a power-up control module for controlling a power-up operation of the test module.
7. The patch signal board of claim 1, wherein the substrate further comprises a power-down control module for controlling power-down operation of the test module.
8. The patch signal board of claim 1, wherein the substrate is a printed circuit board.
9. A collet-type testing device, comprising: a fixing assembly; and the adapter plate according to any one of claims 1 to 7, wherein the fixing assembly is used for fixing the adapter plate.
10. A jig type testing device is characterized by comprising: a fixing assembly; testing the chuck; the patch panel of any one of claims 1-7, wherein the mounting assembly is configured to mount the patch panel, and the test cartridge is coupled to the patch panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776538.3U CN215527202U (en) | 2021-07-30 | 2021-07-30 | Switching signal board, chuck type testing device and tool type testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776538.3U CN215527202U (en) | 2021-07-30 | 2021-07-30 | Switching signal board, chuck type testing device and tool type testing device |
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| Publication Number | Publication Date |
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| CN215527202U true CN215527202U (en) | 2022-01-14 |
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| CN202121776538.3U Active CN215527202U (en) | 2021-07-30 | 2021-07-30 | Switching signal board, chuck type testing device and tool type testing device |
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| CN (1) | CN215527202U (en) |
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- 2021-07-30 CN CN202121776538.3U patent/CN215527202U/en active Active
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