Display Frame Buffer Static Image Refresh via Emission Sync
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Solution Overview
Problem
Existing electronic display systems consume significant power and resources when maintaining static image frames, as they require continuous image processing and synchronization signals, which can disrupt timing and necessitate additional circuitry or programming.
Innovation Solution
The image processing circuitry is shut down or placed in a low power mode, and the emission sync signal is used to instigate reads of the frame buffer without updating the display image data, tricking the display into showing the same image data as if it were new, thus maintaining proper timing while conserving power and resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image processing circuitry continuously generates and transmits display image data for static content, then the display timing is maintained, but power consumption and resource usage increase
Solution Approach 1:
The patent extracts only the essential timing control function from the image processing circuitry by utilizing the emission sync signal, which already exists for display timing purposes. This allows the image processing circuitry to be shut down or placed in low-power mode while static content is refreshed, as the emission sync signal alone is sufficient to maintain proper display timing without requiring continuous image data generation and transmission.
Solution Approach 2:
The emission sync signal, originally designed for timing control, is given a dual function: it continues to control display timing while also serving to refresh static content on the display. This multi-functionality eliminates the need for separate refresh mechanisms, reducing power consumption without compromising timing reliability.
2Use of energy by moving object
If auto-refresh mode is implemented without emission sync signal, then power consumption is reduced, but timing disruption and additional circuitry are required
Solution Approach 1:
The emission sync signal performs dual duty by simultaneously controlling display timing and enabling static content refresh. This self-service approach means the existing timing infrastructure serves the refresh function as well, eliminating the need for additional dedicated refresh circuitry or programming while maintaining proper timing.
3Reliability
If repeated image data is transmitted via image datalink for static content, then display refresh is achieved, but processing bandwidth is consumed
Solution Approach 1:
The patent extracts only the timing control essence from the image data transmission by using the emission sync signal. This allows the image processing circuitry to be shut down or placed in low-power mode while static content is refreshed, as the emission sync signal alone is sufficient to maintain proper display timing without requiring continuous image data generation and transmission.
Data Source
AI summary
A device may include image processing circuitry that generates image data corresponding to an image to be displayed during a first image frame and a second image frame. However, the image data is not regenerated for the second image frame. The device may also include an electronic display having a frame buffer that receives and stores the image data from the image processing circuitry. The electronic display may also include a display panel that displays the image during the first image frame based on a first read of the image data from the frame buffer in response to a first emission sync signal and displays the image during the second image frame based on a second read of the image data from the frame buffer in response to a second emission sync signal.