Patent ID: 9103867
Filing Date: 2015-08-11
Classification: G01R

Abstract:
1. An apparatus for detecting the abnormal soldering of an electrostatic discharge protection chip comprising: a connector, which is used for pluggable connection with a signal input terminal connector of an application specific integrated circuit chip (ASIC) of a liquid crystal display, the inside of the connector provided with a ground connection terminal and at least one low-voltage differential signal (LVDS) connection terminal, one end of the said ground connection terminal used to be connected with the ground connection terminal of the signal input terminal connector of the ASIC, the said at least one LVDS connection terminal connected with at least one LVDS connection terminal of the signal input terminal connector of the ASIC; and a detecting circuit set on the connector, the detecting circuit comprising: a direct current power supply, the negative electrode of which is connected with the other end of the ground connection terminal; and at least one detecting branch connected between the positive electrode of the direct current power supply and a LVDS connection terminal of the connector, each said detecting branch comprising a detecting portion, the positive electrode of the detecting portion being connected with the positive electrode of the direct current power supply, the negative electrode of the detecting portion being connected with the LVDS connection terminal; the detecting portion prompting when the abnormal soldering of the electrostatic discharge protection chip and the ASIC is detected; wherein, the electrostatic discharge protection chip comprises multiple LVDS connecting pins, each LVDS connecting pin is respectively connected with the LVDS connection terminal of the signal input terminal connector of the ASIC and the LVDS connection terminal of the connector; wherein, when the electrostatic discharge protection chip is properly soldered on the ASIC, the connector is electrically connected with the signal input terminal connector of the ASIC, the direct current power supply and each detecting branch cannot form a loop, and the detecting portion of each said detecting branch prompts in a first way; when the electrostatic discharge protection chip is abnormally soldered on the ASIC, the connector is electrically connected with the signal input terminal connector of the ASIC, the direct current power supply, at least one detecting branch and the electrostatic discharge protection chip form a loop, and the detecting portion of the detecting branch prompts in a second way.