An electronic circuit formed on an insulating substrate and having thin-film transistors comprising semiconductor layers. Numerous alternative embodiments of the apparatus and testing methods therefor are also provided. The approach may further involve processing the data packet carrier to determine whether the data packet carrier has the optional PCR value. If length +T\u2267length, then the indicator bit pattern of data object A is reset and the data object A is written to the storage device. Upon reaching the trigger point, the electrode current is deactivated, and at least a portion of cleaning system fluid is drained and replaced with fresh cleaning fluid. The present disclosure can effectively provide network information within a specific geographical region and drive a user to participate in network information activities, thereby improving the activity of the user to participate in network information interactions.