Test Circuit and Display Panel

摘要

The embodiments of the present invention disclose a test circuit and a display panel, the test circuit comprises a test circuit first terminal, a test circuit second terminal, a test signal line, a voltage signal line, a switching transistor and a first electrostatic discharge protection circuit; the test signal line transmits the test signal, one end is connected with the first terminal, the other end is respectively connected with the switching transistor and the common electrode; the switching transistor is connected with the signal line, according to the received voltage signal on or off to conduct or cut off the test signal with signal line; the first electrostatic discharge protection circuit is respectively connected with the test signal line and signal line. To implement the embodiments, providing a test circuit and a display panel which occupy small space, it is conducive to the narrow border display panel design.

主权项

1. A test circuit, which is used for display panel, wherein the test circuit comprises a test circuit first terminal, a test circuit second terminal, a test signal line, a voltage signal line, a switching transistor and a first electrostatic discharge protection circuit; wherein,
The test circuit first terminal is used to output a display panel test signal, the test circuit second terminal is used to output a voltage signal which turns on or turns off the switching transistor; The test signal line is used to transmit the display panel test signal, one end is connected with the test circuit first terminal, and the other end is connected with the switching transistor and the common electrode; The voltage signal line is used to transmit the voltage signal, one end is connected with the test circuit second terminal, and the other end is connected with the switching transistor; The switching transistor is connected with the display panel signal line, which is used to receive the voltage signal output by the test circuit second terminal through the voltage signal line, and according to the received voltage signal on to conduct the test signal received by the test signal line and the display panel signal line, or the received voltage signal off to cut off the test signal and the display panel signal line; The first electrostatic discharge protection circuit is respectively connected with the test signal line and the display panel signal line.