Detection method of array substrate drive circuit

Abstract

The invention provides a detection method of an array substrate drive circuit. The method includes: in a fully conducting stage, inputting a first power supply voltage signal to a power supply end, inputting a first data voltage signal to a data input end, inputting a first sensing voltage signal to a first sensing voltage end, inputting a first grid conducting signal to a first grid end, and inputting a second grid conducting signal to a second grid end; in a data voltage change stage, changing the first data voltage signal into a second data voltage signal; in a power supply voltage change stage, changing the first power supply voltage signal into a second power supply voltage signal; in a grid signal change stage, changing the first grid conducting signal and the second grid conductingsignal into a first grid blocking signal and a second grid blocking signal; in a measuring stage, measuring the voltage of the first electrode end of a light-emitting device, and comparing the measured voltage with theoretical voltage to determine whether the array substrate drive circuit is normal or not. By the method, the array substrate drive circuit can be detected.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a detection method of a driving circuit of an array substrate. Background technique [0002] In the display industry, OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) has advantages such as high contrast ratio and high color gamut, and is the mainstream trend in the development of display panels in the future. In particular, AMOLED (Active Matrix Organic Light Emitting Diode) has the advantages of wide viewing angle and fast response speed. However, OLED products have stricter requirements on TFT (Thin Film Transistor, thin film transistor) backplanes. The circuit of the pixel drive circuit inside the OLED panel is very complex, and there are many types of defective circuits. For example, the lines of these pixel driving circuits may be short-circuited or open-circuited (or referred to as open circuits), resulting in abnormal pixel driving circui...

AI Technical Summary

Problems solved by technology

The wiring of the pixel driving circuit inside the OLED panel is very complicated, and there are many types of bad wiring

For example, the circuit of these pixel driving circuits may be short-circuited or disconnected (or called open circuit), which will cause the pixel driving circuit to be abnormal.

This will cause problems such as reducing the yield rate of OLED products and increasing the cost of back-end finished products.

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