Display Device Latency Control via Source Commands
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Solution Overview
Problem
Display devices experience unacceptable delays between image data entry and display, leading to usability issues, particularly in applications like gaming and interactive scenarios, where timely user input is critical.
Innovation Solution
Implementing a system where the source device can dynamically control latency by transmitting data packets to the display device to optimize image data processing, using multi-stream capabilities and interconnects to minimize delay, and allowing the source device to decide on time optimization for each data stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If display devices implement multiple stages of image processing to improve image quality, then image quality is improved, but display latency increases
Solution Approach 1:
The patent implements dynamic latency control by allowing the source device to send commands to the display device that adjust the degree of time optimization for different data streams. The display device can dynamically switch between different processing paths (time-optimized vs. non-time-optimized) based on real-time requirements, enabling low latency for gaming streams while maintaining quality for other content
Solution Approach 2:
The patent segments the image processing into different data streams with different latency requirements. By separating streams into time-optimized and non-time-optimized categories, the system can apply different processing levels to different content types, reducing overall latency for critical streams while maintaining image quality for others
2Productivity
If display devices process image data through multiple stages, then image processing capability is improved, but user responsiveness deteriorates
Solution Approach 1:
The system dynamically adjusts processing levels based on user input timing requirements. When gaming or real-time interactive content is detected, the display device switches to time-optimized processing paths that minimize latency, ensuring immediate user responsiveness. For non-interactive content, the system uses full processing capabilities for optimal image quality
3Loss of time
If display devices implement manual delay setup for each source device, then latency control is achieved, but device complexity increases
Solution Approach 1:
The patent implements self-service latency control where the source device automatically sends commands to the display device to configure the appropriate time optimization level. The display device queries the source device and applies the correct processing parameters automatically, eliminating the need for manual user setup while maintaining precise latency control
Solution Approach 2:
The system uses feedback mechanisms where the display device queries the source device about latency requirements and adjusts processing accordingly. This closed-loop communication enables automatic adaptation to different source devices and content types without manual configuration
Data Source
AI summary
Various methods, systems, and apparatus for implementing aspects of latency control in display devices are disclosed. According to aspects of the disclosed invention, a source device commands a display device to minimize the delay between the time that image data enters the display device and the time that it is shown on the display device. In one embodiment, the source device transmits data to the display device that specifies whether the display device should time optimize the image data, such as by transmitting a data packet for this purpose either with the image data or on an auxiliary communication link. In another embodiment, the source device and the display device are coupled via an interconnect that comprises multi-stream capabilities, and each stream is associated with a particular degree of latency optimization.