Landscape Mode Display Timing Control for Mobile LCD Noise Reduction

The patent implements dynamic timing adjustment by detecting the display mode (portrait or landscape) and automatically adjusting the timing signals accordingly. The timing controller dynamically changes the horizontal and vertical synchronization signal timings to match the current orientation, ensuring optimal display quality in both modes without manual intervention.

The patent changes key timing parameters including the horizontal synchronization signal period, vertical synchronization signal period, and data enable signal timing based on the detected display mode. By adjusting these temporal parameters, the system resolves the timing mismatch that causes display noise and quality degradation when displaying landscape images on a portrait-optimized device.

The patent applies preliminary anti-action by detecting when a write operation to video memory is in progress and proactively preventing the common voltage signal update that would cause noise. The timing controller monitors the write status and blocks the common voltage transition beforehand, eliminating the harmful interaction between voltage switching and memory writing operations.

The patent implements preliminary action by completing the video frame write operation to memory before initiating the common voltage signal update. This sequencing ensures that the display refresh occurs only after the new frame data is safely stored, preventing noise generation while maintaining smooth display transitions.

The patent implements multi-functionality by enabling the timing controller to handle both portrait and landscape display modes using the same hardware infrastructure. By detecting the current mode and adjusting timing parameters dynamically, the device achieves universal compatibility with both orientations without requiring separate hardware optimizations for each mode.

The patent introduces dynamic adaptability to the previously fixed timing system. The timing controller now dynamically adjusts synchronization signal timings and data enable signals based on the detected display mode, allowing the same device to optimally support both portrait and landscape orientations while maintaining manufacturing simplicity.