Flexible circuit board touch screen substrate Open-Short test device and method

Abstract

The invention discloses a flexible circuit board touch screen substrate Open-Short test device. The flexible circuit board touch screen substrate Open-Short test device comprises a touch screen substrate, a sensing plate, an extrusion component, a switch plate and a measuring instrument, wherein the sensing plate is placed between the touch screen substrate and the switching plate; the sensing plate, the touch screen substrate and the switching plate are close to one another and are parallel; the touch screen substrate and the sensing plate are attracted by each other and form a large capacitor; N conductive regions of the sensing plate are in one-to-one correspondence to N touch sensing regions of the touch screen substrate to form N small capacitors; during an open-circuit test, the extrusion component descends, a conductive part of the extrusion component is in contact with a chip region to realize conduction, and a measuring instrument measures capacitance of each small capacitor; and during short-circuit test, the extrusion component ascends, the conductive part of the extrusion component is separated from the chip region, the measuring instrument measures the capacitance between each two small capacitors, and whether the touch screen substrate is in open circuit or short circuit according to the capacitance values. The device is efficient and convenient to test, probes are not need, and the touch screen substrate is not damaged. Correspondingly, the invention further discloses a touch screen substrate Open-Short test method based on the test device.

Description

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AI Technical Summary

Benefits of technology

This technology allows for precise testing of electronic devices' screens without damaging them during their manufacture. It uses tiny electrical charges that make up part of what makes things happen inside these displays. These charged particles affect how well they work properly even if some parts get shorted out due to environmental factors like temperature changes over time.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding ways to improve the efficiency and accuracy with which electronic devices such as smart phones display their own brand names through various means like inspections during mass producing. Current solutions involve costly specialized hardware systems and slow downs due to the large number of tests needed.

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