Patent ID: 9626888
Date: 2017-04-18
CPC Classifications: G09G

Claim:
1. An apparatus for testing a display panel, comprising: an interface circuit for connecting to the display panel to be tested; and a test circuit connected to the interface circuit for generating a test signal to the display panel through the interface circuit in a test state for the display panel, and for generating an adjustment signal to the display panel through the interface circuit in a predetermined state for the display panel, wherein at least a portion of an afterimage signal in the display panel is reduced by the adjustment signal in the predetermined state for the display panel; wherein the test circuit comprises: a test signal generation circuit for generating the test signal; an adjustment signal generation circuit for generating the adjustment signal; and a selection circuit for receiving the test signal and the adjustment signal and for outputting the test signal in the test state for the display panel and for outputting the adjustment signal in the predetermined state for the display panel, wherein the predetermined state is a state when the display panel is turned off or within a second predetermined time after turning off the display panel, and the second predetermined time is in a range of 0.01 seconds to 5 seconds.