Holographic Data Distribution via Partial Pixel Updates
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Solution Overview
Problem
Conventional data distribution systems for high-resolution displays, especially holographic and 3D light field displays, face challenges in achieving energy efficiency and low latency due to the need for frequent updates of large data volumes, leading to high energy consumption and increased latency.
Innovation Solution
A data distribution system with a control plane that uses synchronized delay lines and control switches to selectively update pixel elements, allowing for partial updates and reducing energy overhead by detecting patterns in input data and applying control variables efficiently, enabling local postprocessing and compression, and utilizing thin film transistor technology for energy-efficient data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional data distribution systems refresh pixel values periodically in a row-wise manner, then the display can be updated with new video content data, but the entire scan of the display area requires dead time during which pixel values cannot be updated and consumes large amounts of energy to distribute data to all display pixels
Solution Approach 1:
The patent segments the display area into multiple zones or regions, allowing independent updating of different segments. Instead of refreshing the entire display in a row-wise manner, the system can update only the segments that contain changed content, thereby reducing the dead time and energy consumption associated with distributing data to all pixels.
Solution Approach 2:
The patent implements partial updating by detecting changes in video content data and updating only the affected portions of the display. The system identifies regions where pixel values have changed and directs data distribution only to those specific areas, avoiding the excessive action of refreshing the entire display and thereby reducing energy consumption and update time.
2Reliability
If conventional data distribution systems update the entire display area, then all pixel values are refreshed, but this requires scanning the entire display area which creates dead time and increases energy consumption
Solution Approach 1:
The patent applies partial updating by identifying and updating only the portions of the display that contain changed content. The system compares new video content data with previous frame data, detects regions with changes, and updates only those specific areas, thereby eliminating the need to scan and update the entire display area and reducing dead time.
Solution Approach 2:
The patent performs preliminary detection of changed regions before executing the update process. By analyzing the incoming video content data in advance to identify which areas require updating, the system can prepare and execute targeted updates, avoiding the time-consuming process of scanning the entire display area and reducing dead time.
3Adaptability or versatility
If high resolution displays with large amounts of pixels are used, then enhanced viewing comfort and capabilities are achieved, but the amount of data that needs regular updating increases significantly
Solution Approach 1:
The patent segments the high-resolution display into multiple zones and independently manages data distribution for each segment. By dividing the large number of pixels into manageable segments, the system can update only the segments containing changed content, thereby maintaining high display resolution and viewing capabilities while significantly reducing the energy consumption required for data distribution.
Solution Approach 2:
The patent implements partial updating strategies that detect and update only the affected regions in high-resolution displays. Even though the display has a large number of pixels providing enhanced viewing comfort, the system identifies and updates only the specific areas where content has changed, avoiding the excessive energy consumption that would result from updating all pixels.
4Reliability
If volatile CMOS designs are used for data storage, then data can be stored in the system, but the distributed stored data requires regular refreshing typically in the millisecond range which increases energy consumption
Solution Approach 1:
The patent implements selective periodic refreshing by detecting which data regions have changed and refreshing only those specific areas rather than refreshing the entire stored data set. The system uses change detection mechanisms to identify updated content and directs refreshing operations only to the affected segments, thereby maintaining data reliability while reducing the energy consumption associated with regular refreshing operations.
Data Source
AI summary
A system and for distributing data for 3D light field projection and a method thereof. The system comprises input terminals and output terminals that are connectable to pixel elements of a display. Data paths are established between input terminals and output terminals, and are controlled by data switches. The system also comprises a control plane adapted for applying control variables to the data switches. Control switches of the control plane select the control variables which are applied to the data switches. Sequences of control variables and enable variables propagate along at least one first delay line and along at least one second delay line, respectively. Delay units of the at least one first delay line and of the at least one second delay line have a synchronous relationship. During system run-time patterns contained in the stream of input data are detected for determining the sequences of control variables.