LED color screen substrate electric performance test method

A technology of electrical performance testing and substrate, which is applied in the field of electrical performance testing of LED color screen substrates, can solve the problems of high production cost of test frame, high cost, low production efficiency of flying probe test, etc., and achieve the effect of saving equipment purchase funds

Inactive Publication Date: 2018-06-15
赣州市深联电路有限公司
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Problems solved by technology

For the automatic universal testing machine, the maximum number of test points is 380928, the density is 40mil, the installation/replacement of the test frame is efficient, and the production cost of the test frame is low, but the equipment purchase is expensive and the cost is high, and it is difficult for enterprises to afford hundreds of thousands of test equipment. ;For the special testing machine, the maximum number of test points is 16384, which has the problems of low efficiency of installing/replacing the test frame and high cost of test frame manufacturing; the problem of low production efficiency of the flying probe test is only suitable for sample testing
[0005] Due to the parallel wirin

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  • LED color screen substrate electric performance test method
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[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Aiming at the problem that conventional equipment cannot complete the electrical performance test of the entire network for the LED color screen substrate at one time, and it is difficult to evaluate the quality of the LED color screen substrate, the present invention provides a method for testing the electrical performance of different networks in batches by splitting the LED color screen substrate network. The electrical performance test method of the LED color screen substrate, and the purpose of judging the electrical performance of the test product is realized by combining the data of di...

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Abstract

The invention provides an LED color screen substrate electric performance test method. The LED color screen substrate network is split and the electric performance of different networks is tested in batches so that the objective that different test area data are combined to judge the electric performance of the test product. Compared with the methods in the prior art, the beneficial effects are that the difficulties of insufficient equipment test capacity and insufficient arrangement space for the test mould manufacturing columns of the electric performance test of the LED color screen substrate manufacturers can be solved so that the method is suitable for high density lamp PAD and the product of hundreds of thousands of test points, high equipment purchasing fund can be saved for the LEDcolor screen substrate manufacturers and the present equipment resources and technical methods can be reasonably utilized.

Description

technical field [0001] The invention relates to a method for testing the electrical performance of a circuit board, in particular to a method for testing the electrical performance of an LED color screen substrate. Background technique [0002] LED color screen substrate is the carrier of LED color display electrical properties and lamp beads. After the development of single-color, two-color graphic display and color image display, LED color display has become an important symbol of urban lighting, modernization and informatization. [0003] The LED color screen substrate is an important part of the LED color display screen. At present, the production process of the LED color screen substrate has the following characteristics: first-order or second-order HDI design, high-density integration, and complicated process flow; light PAD is dense, and the minimum pitch is only 2.5mm; wiring The network is large, and there are tens of thousands or even hundreds of thousands of test ...

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Application Information

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IPC IPC(8): G01R31/28
CPCG01R31/2801
Inventor 曹宝龙文泽生王泉勇
Owner 赣州市深联电路有限公司
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