Display System Dynamic Lane Adjustment Power Reduction
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Solution Overview
Problem
Existing display systems fail to sufficiently reduce electric power consumption, as steady-state currents flow through channels even in low-speed processing modes, limiting the effectiveness of power-saving measures.
Innovation Solution
A display system with multiple interfaces that dynamically adjust the number of transmission lanes used for image data transmission, ensuring data is transmitted at a constant rate regardless of lane usage, and the display panel adjusts its frame rate accordingly, eliminating current flow through unused lanes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the channel is in the low-speed processing mode to reduce data transmission amount, then electric power consumption is reduced, but steady-state current still flows through the channel preventing sufficient power savings
Solution Approach 1:
The patent applies dynamics by making the transmission lane configuration adjustable rather than fixed. The system can dynamically change the number of transmission lanes used based on data transmission requirements, switching between using all lanes, half of the lanes, or a quarter of the lanes. This dynamic adjustment allows the system to optimize power consumption by deactivating unused transmission lanes while maintaining adequate data transmission capability.
Solution Approach 2:
The patent implements parameter changes by modifying the operational state of transmission lanes. Instead of maintaining a constant configuration, the system changes the number of active transmission lanes based on the required data transmission rate. This parameter adjustment directly affects power consumption by eliminating steady-state current flow through inactive lanes, thereby resolving the contradiction between maintaining transmission capability and reducing power loss.
2Productivity
If all transmission lanes are used to maintain high data transmission rate, then productivity is improved, but electric power consumption increases due to current flow through all lanes
Solution Approach 1:
The system dynamically adjusts the number of active transmission lanes based on the required data transmission rate. When high productivity is needed, all lanes are activated; when lower transmission rates suffice, fewer lanes are used. This dynamic adaptation allows the system to optimize the balance between productivity and power consumption according to actual operational requirements.
Solution Approach 2:
The patent applies partial action by using only the necessary number of transmission lanes required for the current data transmission demand rather than always utilizing all available lanes. This partial utilization reduces power consumption by keeping unnecessary lanes inactive, while still providing sufficient transmission capacity when needed by activating additional lanes.
Data Source
AI summary
Provided is a display system (1) capable of further reducing electric power consumption. The display system (1) includes: a host device (2) including transceivers (Tx1, Tx2); a display device (3) including receivers (Rx1, Rx2); a plurality of interfaces (IF1, IF2) for transmitting image data from the transceivers (Tx1, Tx2) to the receivers (Rx1, Rx2); changing means for changing the number of transmission lanes to be used by each of the plurality of interfaces (IF1, IF2); and a display panel (5) provided in the display device (3). Each of the interfaces (IF1, IF2) transmits the image data at an identical transmission rate irrespective of the number of the transmission lanes to be used. The display panel (5) displays an image indicated by the image data, at a frame rate corresponding to the total number of the transmission lanes to be used by the each of the interfaces (IF1, IF2).