Performance detection system and detection method for Schottky diode in display module

Abstract

The invention discloses a performance detection system and detection method for a Schottky diode in a display module, and the detection system comprises a standard database, a selection calling module, a voltage source module, a test module, a data processing module and an output module. The voltage values in the plurality of standard data groups are progressively increased according to a standard amplification echelon; the selection calling module is used for selecting the model of the SD device; the voltage source module is used for outputting forward and reverse direct-current voltages to the two ends of the SD device, the forward direct-current voltage is progressively increased according to a first amplification echelon when input, and the reverse direct-current voltage is progressively increased according to a second amplification echelon when input; the test module is used for conducting the two ends of the SD device to form a detection data set of a voltage value and a current value, and sending the detection data set to the data processing module; the data processing module compares the detection data set with the standard data set; the output module is used for outputting a detection result.

Description

technical field [0001] The invention relates to the technical field of display screens or touch screens, in particular to a performance detection system and detection method for Schottky diodes in a display module. Background technique [0002] In the current display module industry, Schottky diodes (Schottky Diodes, hereinafter referred to as SD), which are a protective device, are generally arranged on the FPC. There is no method and scheme for testing SD devices in the existing module product inspection, only to check whether the finished module can be normally lit during the lighting test process. Such a mode can only be displayed intuitively when the SD device is completely damaged (the module cannot be turned on when it is completely damaged). For SD devices with micro breakdown, this method cannot be detected, so that this part is not included in the product. Good flow out to the client, causing problems such as flickering screen, no display, abnormal current, high p...

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Problems solved by technology

[0004] (1) The drive capacity of the power supply used by the fixture in the module factory is relatively large, and the phenomenon of power-on instant power-on caused by the micro-breakdown of SD devices is not obvious, resulting in failure to detect;

[0005] (2) At the end of the whole machine, the battery's load capacity is limited, and the phenomenon of power draw of any component at the moment of power-on will cause insufficient battery load capacity, which will lead to problems such as screen flashing, no display, abnormal current, and high power consumption.

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