Signal Transmission Synchronization for Display Devices
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Solution Overview
Problem
In display devices, noise signals between transmitting and receiving units cause signal interference, leading to irregular signal reception times among receiving units, resulting in a corrugated image display and poor display effect due to differing noise signal strengths across paths.
Innovation Solution
Implementing a signal transmission method using linear feedback shift registers in both transmitting and receiving units, where signals are scrambled with identification signals to synchronize reset operations across all units, ensuring all receiving units complete reset operations before outputting display signals, thus synchronizing signal output times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmitting units transmit signals to receiving units simultaneously, then the display panel can display images efficiently, but noise signals with different strengths cause receiving units to receive signals at different times, resulting in corrugated images
Solution Approach 1:
The patent applies preliminary action by introducing identification signals before the actual data signals. These identification signals enable receiving units to perform reset operations in advance, ensuring they are synchronized and ready to receive data signals at the correct time, thereby preventing the corrugation caused by asynchronous signal reception
Solution Approach 2:
The patent uses feedback mechanisms where receiving units detect identification signals and automatically perform reset operations. This feedback loop ensures that each receiving unit can independently synchronize its state based on the transmitted identification signals, maintaining consistent signal reception timing across all units
2Reliability
If transmitting units retransmit signals to receiving units that failed to receive them, then signal reception reliability improves, but the time difference in signal reception among receiving units increases, causing corrugated images
Solution Approach 1:
The patent prevents the need for retransmission by performing preliminary reset operations using identification signals. This ensures all receiving units are synchronized before data signal transmission, eliminating the time differences that would otherwise require retransmission and causing image corrugation
Solution Approach 2:
The patent skips the retransmission step entirely by using identification signals to pre-synchronize all receiving units. This rushing through the synchronization process before data transmission ensures all units are ready simultaneously, avoiding the time delays and image corruption that would result from sequential retransmissions
Data Source
AI summary
A signal transmission method and related timing controller, source driver and display device are disclosed. The method includes scrambling a signal to be transmitted by a transmitting unit to obtain a scrambled signal. Each frame of the scrambled signal includes at least one first identification signal sequentially arranged in time domain, and a number of the first identification signals in the scrambled signal is equal to a number of the first identification signals in the scrambled signals of other transmitting units in the plurality of transmitting units. The method includes transmitting the scrambled signal to a corresponding receiving unit, where the first identification signal is configured to indicate linear feedback shift registers of the transmitting unit and the corresponding receiving unit to perform a reset operation, and after each collective reset operation is completed, the corresponding receiving unit outputs a display signal to the display panel.