Patent ID: 11929016
Assignee: MACROBLOCK, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The scan-type display apparatus of claim 6, wherein, with respect to each of said scan driving circuits,
said scan driving circuit has an operation cycle that includes a scan time interval and a number (N−1) of clamp time intervals, where N is a total number of said scan driving circuits, each of the clamp time intervals includes a first clamp time segment and a second clamp time segment,
the scan signal is at a voltage level corresponding to conduction of said scan switch during the scan time interval, and is at a voltage level corresponding to non-conduction of said scan switch during the clamp time intervals,
the clamp signal is at a voltage level corresponding to non-conduction of said clamp switch during the scan time interval and the first clamp time segments of the clamp time intervals, and is at a voltage level corresponding to conduction of said clamp switch during the second clamp time segments of the clamp time intervals,
the detection timing signal is at a voltage level that corresponds to a state where said detector detects whether any one of said LEDs connected to said scan line corresponding to said scan driving circuit is short circuited during the first clamp time segments of a second one to an (N−1)th one of the clamp time intervals, and is at a voltage level that corresponds to a state where said detector does not perform detection during other times of the operation cycle, and
when the detection signal indicates that none of said LEDs connected to said scan line corresponding to said scan driving circuit is short circuited, the control signal is at a voltage level corresponding to conduction of said intermediate switch.