Test method and apparatus for digital display interface

Abstract

The invention provides a method for testing a digital display interface and a device thereof, and the method comprises the following steps: a digital display interface signal which is output from the digital display interface and corresponds to a preset video signal is received and then is decoded as a digital signal; the digital signal is stored and then read and compared with the preset video signal to judge whether the digital signal is consistent with the preset video signal; if so, the digital display interface is determined as normal; otherwise, the digital display interface is determined as abnormal. The device comprises an encoding unit, a storing unit and a comparing unit. In the testing process of the technical proposal of the embodiment of the invention, as no operator is required to make a subjective judgment, the objective test of the digital display interface is realized, the test efficiency and reliability are improved, and the consumption of manpower is reduced; in addition, the realization is easy, and the purchase of expensive display device is not required, thus greatly reducing the test cost.

Description

technical field [0001] The invention relates to the field of digital equipment testing, in particular to a testing method and device for a digital display interface. Background technique [0002] At present, when testing the digital display interface of the mainframe of digital equipment such as DVI or DP in the factory, it is usually necessary to use a display with a digital signal interface. The operator plugs the mainframe into the display one by one, observes the display content of the display, and judges the display content Whether it is consistent with the pre-estimated output, if it is consistent, it is determined that the digital display interface of the host is working normally, otherwise, it is determined that it is not working normally. [0003] The shortcoming of the testing method of above-mentioned prior art is: [0004] The purchase and maintenance costs are high, and this test method requires the purchase and maintenance of monitors; currently, monitors with...

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Problems solved by technology

[0004] The purchase and maintenance costs are high, and this test method requires the purchase and maintenance of monitors; currently, monitors with DVI are generally around 2,000 yuan, while monitors that support DP are more expensive; moreover, after the monitor is purchased, the cost of maintaining the monitor is also required;

[0005] High labor cost, the test method consumes a long test time and low test efficiency, requires more labor cost, and will form a test bottleneck in mass production;

[0006] The test results are highly subjective. This test method mainly relies on artificially estimating the display results and testing by judging whether the displayed results are consistent with the estimated results. Therefore, there must be subjectivity in judgment, resulting in unobjective test results.

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