CN211785668U

CN211785668U - Display panel CELL end detection tool

Info

Publication number: CN211785668U
Application number: CN202020121575.XU
Authority: CN
Inventors: 全冠旭; 雷鸣
Original assignee: Nanjing Microbridge Testing Technology Co ltd
Current assignee: Nanjing Microbridge Testing Technology Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-27
Anticipated expiration: 2030-01-19

Abstract

The utility model provides a display panel CELL end detection tool, includes the box, is equipped with the support plate on the box, and the upper end of support plate is equipped with the cylinder perpendicularly, fixed connection pressure head on the cylinder, pressure head and workpiece circuit contact segment that awaits measuring are the comb-tooth form, and with the circuit matching of the workpiece that awaits measuring, the pressure head below is equipped with test probe, every circuit and the pressure head of test probe and workpiece circuit contact segment comb-tooth form circuit one-to-one. When the pressing head is pressed downwards for alignment, the alignment can be successfully performed only by observing the comb-shaped part on the pressing head, and a CCD alignment mechanism in the detection jig is omitted; the flexible flat cable is provided with a test probe, and is easier to contact with the display glass to be tested than the common flexible flat cable; through the accurate control of crimping actuating element cylinder process of pushing down, can not cause the damage and improve test probe's life to customer's product.

Description

Display panel CELL end detection tool

Technical Field

The utility model relates to an electronic product components and parts subassembly test technical field specifically is a display panel CELL end detection tool.

Background

With the rapid development of DISPLAY related electronic products such as smart phones, tablet computers, notebooks, high-definition televisions and smart watches, the demand of the market for DISPLAY screen modules in the DISPLAY industry is also increasing day by day. The method also puts higher requirements on the product productivity, the yield and the like of display screen manufacturers. In the production process of the display screen, the detection link plays a very important role in the whole process, and is directly related to the production speed, the yield, the quality and other key factors of the display screen.

At present, the test fixture for testing display screen glass circuit on the market mostly adopts ordinary soft arranging wire crimping, because the circuit is thinner, needs very big power to go the product of crimping customer, causes the damage to customer's product easily, and the test probe is the blade needle, and the corresponding product PITCH that can make is limited, and the circuit is extremely thin can't test, and the equipment is troublesome. The test fixture is equipped with corresponding test pieces such as a camera lens, an XY axis sliding table and the like, so that the test cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a display panel CELL holds detection tool, the power distribution box comprises a box body, be equipped with the support plate on the box, the upper end of support plate is equipped with the cylinder perpendicularly, fixed connection pressure head on the cylinder, the pressure head is comb-tooth form with the work piece circuit contact segment that awaits measuring, and matches with the circuit of the work piece that awaits measuring.

Furthermore, the box body is also provided with a patch panel and an emergency stop key.

Furthermore, the left side and the lower extreme of support plate are equipped with the stopper.

Furthermore, a placing plate is arranged on the carrier plate.

Furthermore, a buffer is arranged on the back surface of the carrier plate.

Furthermore, a flexible flat cable is arranged on the pressure head.

Furthermore, the flexible flat cable is provided with a test probe.

Furthermore, each circuit of the test probe corresponds to the comb-shaped circuit of the contact part of the pressure head and the circuit of the workpiece to be tested one by one.

The utility model has the advantages that the contact part of the pressure head and the workpiece to be detected is comb-shaped and is matched with the circuit of the workpiece to be detected, when the pressure head is pressed down for alignment, the comb-shaped part on the pressure head can be successfully aligned only by observing, and a CCD alignment mechanism in the detection jig is omitted; the flexible flat cable is provided with a test probe, and is easier to contact with the display glass to be tested than the common flexible flat cable; through the accurate control of crimping actuating element cylinder process of pushing down, can not cause the damage and improve test probe's life to customer's product.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a positioning pin and a bush portion for a positioning pin according to the present invention.

Fig. 3 is a schematic view of the probe on the flexible flat cable of the present invention.

Fig. 4 is a schematic structural view of the placing board of the present invention.

Fig. 5 is a schematic structural view of the comb-shaped contact part between the indenter and the workpiece to be measured.

The device comprises a box body 1, a carrier plate 2, an adapter plate 3, an emergency stop key 4, an air cylinder 5, a pressure head 6, a limiting block 7, a positioning pin 8, a positioning pin bushing 9, a placing plate 10, a buffer 11, a vacuum adsorption hole 12, a flexible flat cable 13, a spring plunger 14 and a micrometer 15.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other obvious modifications can be obtained without inventive efforts.

As shown in figure 1, a display panel CELL end detection tool is used for carrying out functional test on a display screen glass circuit, and comprises a box body 1, wherein a support plate 2, a transfer plate 3 and an emergency stop key 4 are arranged on the box body 1, a limit block 7 is arranged at the left side and the lower end of the support plate 2, an air cylinder 5 is vertically arranged at the upper end of the support plate 2, and a pressure head 6 is fixedly connected onto the air cylinder 5.

It should be noted that, there is spring plunger 14 on the left side of the cylinder, micrometer 15 on the right side, and there is a linear guide below for fine adjustment during alignment.

Fig. 2 is an enlarged view of the positioning pin 8 and the positioning pin bush 9 according to the present invention. The pressure head 6 is provided with a positioning pin 8, and the support plate 2 is provided with a lining 9 for the positioning pin. It should be noted that, the circuit on the display screen glass to be tested is extremely tiny, hardly aligns with the test probe in the tool accurately during the test, and traditional display screen glass circuit test tool is equipped with corresponding test standard spare, including XY axle slip table, camera lens subassembly, display screen etc. and expensive and efficiency of software testing is not high. The utility model discloses in, the position of adjusting in advance and fixing locating pin 8 on pressure head 6 and the bush 19 for the locating pin on support plate 2 before the test. During debugging, the cylinder 5 is pushed down, and the locating pin 8 is counterpointed with the locating pin is with bush 9 is automatic, improves efficiency of software testing and reduces the test cost.

Preferably, the air cylinder 5 is adopted as the compression joint executing element, the pressing process is accurately controlled, damage to products of customers is avoided, and the service life of the test probe is prolonged.

It should be noted that the back surface of the carrier board 2 is provided with a buffer 11 for reducing vibration and noise in the press-bonding test.

As shown in fig. 3, the pressing head 6 is provided with a flexible flat cable 13 and is fixed on the pressing head 6 by the positioning pin 8. It should be noted that, the flexible flat cable 13 is provided with a test probe, and the unique technology of "needle expanding" on the flexible flat cable is easier to contact with a test point on a glass line of a display screen to be tested compared with the common flexible flat cable, so that the test result is more accurate.

Preferably, the test probes on the flexible flat cable 13 have a certain height, so that the test probes can be conveniently contacted with the test points on the display screen glass circuit during testing, and the service life of the test probes is prolonged. The test probe has a certain height, so that the test probe not only can test products of the plane test points, but also can test products of the concave test points.

It should be noted that each line of the test probe and the comb-shaped line of the contact part of the pressure head and the line of the workpiece to be tested correspond to each other one by one.

It should be noted that the shape of the test probes on the flex cable can be changed according to the requirements of the customer.

As shown in fig. 4, a placing plate 10 is disposed on the carrier plate 2 and used for placing a workpiece to be tested, and it should be noted that a vacuum adsorption hole 12 is disposed on the placing plate 10 and used for adsorbing the workpiece to be tested on the surface of the carrier plate 2, so as to facilitate taking and placing of the display screen glass to be tested.

As shown in fig. 5, the structural diagram of the comb-shaped contact portion of the pressure head 6 and the workpiece to be detected is shown, the comb-shaped contact portion is matched with the circuit of the workpiece to be detected, and when the pressure head is pressed down for alignment, the alignment can be successfully performed only by observing the comb-shaped contact portion on the pressure head, so that a CCD alignment mechanism in the detection jig is omitted.

A display panel CELL end detection jig, the contact part of the pressure head and the workpiece to be detected is comb-shaped and matched with the circuit of the workpiece to be detected, when pressing down and aligning, only the comb-shaped part on the pressure head needs to be observed to successfully align, thus omitting a CCD aligning mechanism in the detection jig; the press plate is provided with the positioning pin, the carrier plate is provided with the lining for the positioning pin, the cylinder is pressed down during testing, the positioning pin and the lining for the positioning pin are automatically aligned, the testing efficiency is improved conveniently, and the testing cost is greatly reduced; the flexible flat cable is provided with a test probe, and is easier to contact with the display glass to be tested than the common flexible flat cable; through the accurate control of crimping actuating element cylinder process of pushing down, can not cause the damage and improve test probe's life to customer's product.

Claims

1. The utility model provides a display panel CELL end detection tool, includes the box, be equipped with the support plate on the box, the upper end of support plate is equipped with the cylinder perpendicularly, fixed connection pressure head on the cylinder, its characterized in that, pressure head and workpiece circuit contact part that awaits measuring are comb-tooth form, and match with the circuit of the workpiece that awaits measuring.

2. The display panel CELL end detection tool of claim 1, wherein the box body is further provided with an adapter plate and an emergency stop key.

3. The display panel CELL end detection fixture according to claim 1, wherein the support plate has limiting blocks at left and lower ends thereof.

4. The apparatus as claimed in claim 1, wherein a placement board is disposed on the carrier board.

5. The fixture for detecting the CELL end of a display panel of claim 1, wherein a buffer is disposed on the back surface of the carrier.

6. The fixture for detecting the CELL end of a display panel as claimed in claim 1, wherein the pressing head is provided with a flexible flat cable.

7. The apparatus as claimed in claim 6, wherein the flexible flat cable is provided with a test probe.

8. The apparatus as claimed in claim 7, wherein each of the circuits of the test probes and the indenter correspond to a comb-shaped circuit of a contact portion of the circuit of the workpiece to be tested.