AMOLED Touch Display Panel Fault Detection Circuit

The patent applies preliminary action by introducing a detection signal line and detection circuit before the touch display is put into normal operation. The detection circuit is pre-configured to send detection signals through the touch signal lines and data lines to identify open circuits or short circuits in advance, allowing faults to be detected before they affect normal touch control functionality.

The patent uses an intermediary approach by introducing a separate detection signal line as a mediator between the detection circuit and the touch signal lines. This detection signal line serves as a dedicated communication channel that allows the detection circuit to probe the electrical continuity and integrity of touch signal lines without interfering with normal touch operations, enabling fault detection while maintaining touch control functionality.

The patent applies universality by making the data lines serve multiple functions: they carry data signals during normal display operation and simultaneously serve as detection pathways for fault detection. The detection circuit utilizes the existing data line network to access and test the electrical integrity of touch signal lines, eliminating the need for separate external access pathways and maintaining structural compactness while enabling fault detection.

The patent implements self-service by designing a system where the display's own data line network is utilized for fault detection purposes. The detection circuit leverages the existing infrastructure of data lines that are already present in the AMOLED structure, allowing the device to self-diagnose touch signal line faults without requiring additional external access mechanisms or increasing structural complexity.