CN219248153U

CN219248153U - Multifunctional transfer printed circuit board

Info

Publication number: CN219248153U
Application number: CN202222708544.6U
Authority: CN
Inventors: 兰峥
Original assignee: Jiangxi Holitech Technology Co Ltd
Current assignee: Jiangxi Holitech Technology Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-06-23
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to the field of LCM module function test, and particularly discloses a multifunctional transfer printed circuit board which comprises a board body and a first input interface, wherein the first input interface is used for being connected with a GX08 test box; the utility model also comprises a second input interface, a first via group, a second via group and an output interface; the second input interface is used as an FFC or FPC connector, the first via group is connected with the ox horn seat to form a third input interface, and the output interface is used as the FFC or FPC connector; the first input interface is electrically connected with the second input interface, the first input interface is electrically connected with the first via hole group, the first via hole group is electrically connected with the second via hole group, and the second via hole group is electrically connected with the output interface; the utility model reduces LCM module testing cost by modifying the input end and the output end.

Description

Multifunctional transfer printed circuit board

Technical Field

The utility model relates to the field of testing of functions of liquid crystal display modules, in particular to a multifunctional transfer printed circuit board.

Background

Printed Circuit Boards (PCB) are one of the important components of the electronic industry. In general, in electronic components having integrated circuits, PCBs are used in order to electrically interconnect the respective components. The PCB consists of an insulating bottom plate, connecting wires and bonding pads for assembling and welding electronic elements, and has the dual functions of a conductive circuit and the insulating bottom plate. The whole PCB subjected to assembly and debugging can be used as an independent spare part, so that the function detection, interchange and maintenance of the whole product are facilitated, and the PCB is used as an adapter plate for testing the display and touch functions of the liquid crystal display module, namely the adapter plate is representative.

The LCM module is widely applied to display equipment because of the advantages of light weight, low energy consumption and extremely low radiation, and is a component for assembling a liquid crystal touch display screen, a connecting piece, an induction and driving circuit, a PCB, a backlight source, a structural member and the like. With the rapid development of the liquid crystal display industry, more and more test items are required for the LCM module, wherein the most important test items are touch test and display test for the liquid crystal touch display screen.

In the prior art, a display and touch function two-in-one testing jig for an LCM module is provided, but the two-in-one jig used at present is a 'GuoYu GX08 testing box + an adapter wire + a special adapter plate for a screen', in the combination, the adapter wire and a connector thereof are special and expensive, and the adapter wire and the connecting wire are easy to damage; meanwhile, each product needs to be designed with a special switching PCB, and the cost is high.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a multifunctional transfer printed circuit board which unifies GX08 and GX09 test interfaces and is convenient for product test.

The technical scheme of the billboard provided by the utility model is as follows:

the multifunctional transfer printed circuit board comprises a board body and a first input interface, wherein the first input interface is used for being connected with a GX08 test box; the utility model also comprises a second input interface, a first via group, a second via group and an output interface; the second input interface is used as an FFC or FPC connector, the first via group is used as a third input interface by being connected with a ox horn seat, and the output interface is an FFC or FPC connector; the first input interface is electrically connected with the second input interface, the first input interface is electrically connected with the first via group, the first via group is electrically connected with the second via group, and the second via group is electrically connected with the output interface.

By adopting the technical scheme, compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: on the premise of keeping the original first interface, the second interface is additionally arranged, and the third interface is further generated after the first via hole group is formed on the surface of the board, so that FFC or FPC connection test with lower cost can be used, and the cost is reduced. Meanwhile, in the implementation process of the utility model, the transfer FPC connected with the LCM is almost only worn, the transfer FPC is replaced after being damaged, and compared with the transfer PCB, the transfer FPC is replaced or designed independently, so that the overall cost is greatly reduced.

Preferably, the second input interface is connected with the FFC/FPC through a flip connector; since the FFC or FPC is low in cost, the access test cost is reduced.

Preferably, the vias in the first via group are distributed at equal intervals; as the first via group is welded with the header pin header and then used as the third input interface, the first via group can generate the third input interface, so that the utility model has diversified input functions and test areas.

Preferably, the vias in the second via group are distributed at equal intervals, and the second via group is used for jumper wire or voltage test through welding pins; the jumper wire is embodied in that if the FFC or the FPC is not available, the jumper wire can be directly carried out at the position, so that the output function is achieved, and meanwhile, when the universal meter is used for measuring voltage, the red meter pen of the universal meter can be connected to the second through hole.

Preferably, the output interface is connected with the FFC or the FPC through a flip connector; because FFC or FPC cost is low, and then reduce output project cost.

Preferably, the plate surface of the plate body is provided with ground holes, and at least one ground hole is arranged; therefore, when the universal meter is used for testing voltage, the black pen is connected into the ground hole while the red pen is connected into the second through hole, and the voltage value can be measured.

Drawings

Fig. 1 is a schematic diagram of a printed circuit board structure according to the present utility model.

Wherein, the numbers marked in the figures represent respectively; 1. a first interface; 2. a second interface; 3. a first set of vias; 4. a second set of vias; 5. an output interface; 6. a ground hole; 7. a plate body.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1, the utility model provides a multifunctional transfer printed circuit board, which comprises a board body 7, a first input interface 1, a second input interface 1 and a third input interface 1, wherein the first input interface 1 is used for being connected with a GX08 test box; the device specifically further comprises a second input interface 2, a first via hole 3, a second via hole 4 and an input interface; the second input interface 2 is connected with an FFC or an FPC (flexible printed Circuit), the first via group 3 forms a third input interface after being connected with the ox horn seat, and the output interface 5 can be connected with the FFC/FPC.

In this embodiment, the first input interface 1 is an interface corresponding to a GX08 test box; the second input interface 2 can be matingly connected to the FFC or FPC after soldering the 0.5pitch flip connector. When the GX08 test box is used for testing, the first interface 1 and the second interface 2 are selected for inputting, the second interface 2 is used as a GX08 improved interface and can be connected with an FFC or an FPC, and the first interface is used as a GX08 original interface and is matched with an original test line and a connector of the GX08 test box. No matter the first interface or the second interface is used, no jumper is needed when the touch function is tested, and the touch function is directly output by the output interface 5.

In this embodiment, the vias in the first via group 3 are distributed at equal intervals, and the first via group 3 is connected to the header and then used as a GX09 test box interface (third interface). The through holes in the second through hole group 4 are distributed at equal intervals, and the second through hole group 4 can be connected with a pin header for voltage testing or jumper wire use.

In this embodiment, the distance between the vias in the first and second via groups is 2.54mm, and after the first via group welds the header, an interface (third interface) corresponding to the GX09 test box is formed, so that the first via group can be directly inserted into the GX09 test box when in use, for example, a touch function is tested, and when there is no FFC or FPC, a jumper is required, that is, the first via group is directly output from the second via group 4 without going through the output interface 5.

In this embodiment, after the output interface 5 is connected to the 0.5pitch flip connector, it can be connected to the FFC or FPC in a matching manner. In addition, the first and second input interfaces, the first and second sets of vias and the input interface are wired on the PCB as shown in fig. 1.

In this embodiment, the board surface of the board body 7 is provided with the ground holes 6, and the purpose of forming the ground holes 6 is to take into consideration the requirement of measuring voltage, a universal meter is usually used for measuring the voltage, and during measurement, a black pen of the universal meter is connected into the via holes 6, and a red pen can be connected into the second via hole group 4 or into the needle paper of the second via hole group, so that at least one ground hole 6 is arranged. In fig. 1, 4 ground holes are drawn, which is preferable, and the accuracy of measuring the voltage can be increased.

Of course, the input interface and the output interface may be made as interfaces mating connectors of different types, or may be directly designed to be of a type capable of connecting FFC/FPC. In fact, it is only necessary to connect FFC/FPC and perform a test.

In general, although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional switching printed wiring board, includes plate body (7) and first input interface (1), first input interface (1) are used for being connected characterized by with GX08 test box: the device also comprises a second input interface (2), a first via group (3), a second via group (4) and an output interface (5); the second input interface is used as an FFC or FPC connector, the first via group (3) is connected with the ox horn seat and then used as a third input interface, and the output interface (5) is used as the FFC or FPC connector; the first input interface (1) is electrically connected with the second input interface (2), the first input interface (1) is electrically connected with the first via group (3), the first via group (3) is electrically connected with the second via group (4), and the second via group (4) is electrically connected with the output interface (5).

2. The multi-functional transfer printed wiring board according to claim 1, wherein: the second input interface (2) is connected with the FFC or the FPC through a flip connector.

3. The multi-functional transfer printed wiring board according to claim 1, wherein: the through holes in the first through hole group (3) are distributed at equal intervals.

4. The multi-functional transfer printed wiring board according to claim 1, wherein: the through holes in the second through hole group (4) are distributed at equal intervals, and the second through hole group (4) is used as a jumper wire or a voltage test through a connecting pin header.

5. The multi-functional transfer printed wiring board according to claim 1, wherein: the output interface (5) is connected with the FFC or the FPC through a flip connector.

6. The multi-functional transfer printed wiring board according to claim 1, wherein: the plate surface of the plate body (7) is provided with ground holes (6), and at least one ground hole (6) is arranged.