Patent ID: 11893914
Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A test method for a display panel, comprising:
receiving and using a plurality of array test control signals to control at least one set of array test switch units in an array test sub-circuit of the display panel to be turned on, in a test sub-period;
receiving and using a plurality of panel test control signals to control a part of panel test switch units in a panel test sub-circuit of the display panel to be turned on, and transmitting a part of the plurality of panel test control signals to a plurality of test terminals of the array test sub-circuit;
turning on a set of the array test swtich units in the test sub-period;
turning on successively a plurality of sets of the array test switch units in a test period, wherein the test period comprises two or more test sub-periods; and
under a condition that the set of the array test switch units are turned on, changing alternately a panel test signal corresponding to a plurality of first sub-pixels of the sub-pixels, a panel test signal corresponding to a plurality of second sub-pixels of the sub-pixels, and a panel test signal corresponding to a plurality of third sub-pixels of the sub-pixels to the effective level; and
determining whether there is a short-circuited data line in the display panel according to short circuit determination signals outputted by the test terminals.