Tiled Display Synchronization Timing Control
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Solution Overview
Problem
Tiled display systems experience flicker issues due to asynchronous display of sub-frames, which can lead to visual disruptions in large image displays.
Innovation Solution
A tiled display system and device configuration where the first and last display devices start displaying sub-frames at specific time points that satisfy the equation 0<(Tn−T1)≤(1/H)×[(N−1)/N], ensuring synchronous display across multiple devices with a refresh rate H and N number of devices, thereby minimizing flicker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are used to form a tiled display system, then the display area and resolution are improved, but asynchronous display of sub-frames causes flicker problems
Solution Approach 1:
The patent applies preliminary action by pre-calculating and setting different start display times for each display device based on their positions in the tiled arrangement. The controller configures each device to begin displaying its sub-frame at a predetermined time point that ensures all sub-frames complete simultaneously, preventing flicker before it occurs.
Solution Approach 2:
The patent implements dynamics by introducing dynamic time offset adjustments for each display device. The start display time of each device is dynamically adjusted based on its position in the tiled system, with later devices given extended display time to synchronize with earlier devices, creating a dynamic timing compensation mechanism.
2Ease of operation
If sub-frames are displayed asynchronously across multiple devices, then device independence and simplicity are maintained, but visual coherence and stability deteriorate due to flicker
Solution Approach 1:
The patent applies feedback by implementing a timing synchronization mechanism where the controller monitors and adjusts the start display times of individual devices based on their position in the tiled arrangement. This feedback loop ensures that despite independent operation, all devices contribute to a coherent visual output by compensating for transmission and processing delays.
Solution Approach 2:
The patent maintains segmentation by dividing the overall frame into multiple sub-frames displayed by different devices independently. Each device operates autonomously displaying its designated sub-frame, while the segmentation is coordinated through timed offsets to achieve overall visual coherence.
Data Source
AI summary
A tiled display system is disclosed, which includes: a plurality of display devices; and a controller driving the plurality of display devices to enable each display device to display a sub-frame, all sub-frames being tiled as one frame, wherein the display devices include: a first display device that starts displaying first and a last display device that starts displaying last, the first display device displays the sub-frame at a first time point, the last display device displays the sub-frame at a last time point, and the first time point and the last time point satisfy an equation:0<(Tn−T1)≤(1/H1)×[(N−1)/N],where T1 is the first time point, Tn is the last time point, H1 is a refresh rate of each display device, and N is a number of the display devices. In addition, a display device including a plurality of display panels is also disclosed.