Semiconductor Apparatus for Display Data Redundancy and Recovery
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Solution Overview
Problem
Conventional image display systems face issues with information loss when abnormal states occur during data transmission, leading to incomplete video image display, which is critical in applications like automotive and medical devices where important information is displayed.
Innovation Solution
A semiconductor apparatus with receivers for odd and even-numbered pixels, abnormal state detectors, and a signal processing unit that integrates and restores pixel data, rearranges video data to functioning source drivers, and changes color/luminance to notify users of abnormalities, preventing information loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional data transmission paths are used without redundancy, then device complexity is reduced, but reliability deteriorates when abnormal states occur during data transmission
Solution Approach 1:
The display panel is divided into multiple regions (first region and second region), with each region having its own dedicated data transmission path and source driver. This segmentation allows independent operation of each region, so that an abnormality in one region does not affect the other regions, thereby maintaining display continuity while managing system complexity through modular organization.
Solution Approach 2:
When an abnormal state is detected in a source driver, the system changes the operational parameters by switching from normal operation mode to abnormal operation mode. In abnormal mode, the affected region is turned off while other regions continue to display, or the system switches to using a different transmission path, thus adapting to the abnormal condition and maintaining overall display functionality.
2Area of stationary object
If multiple source drivers are used to drive different regions, then display coverage is improved, but reliability deteriorates when abnormal states occur in source drivers
Solution Approach 1:
The display panel is divided into multiple regions (first region and second region), with each region having its own dedicated data transmission path and source driver. This segmentation allows independent operation of each region, so that an abnormality in one region does not affect the other regions, thereby maintaining display continuity while managing system complexity through modular organization.
Solution Approach 2:
The system dynamically switches between normal operation mode and abnormal operation mode based on the operational status of source drivers. When an abnormality is detected, the system automatically adjusts its operation by turning off the affected region or switching to alternative transmission paths, ensuring continuous and stable display performance despite component failures.
3Productivity
If data transmission continues without abnormality detection, then productivity is maintained, but loss of information occurs when abnormal states happen
Solution Approach 1:
The system incorporates abnormal state detection mechanisms that continuously monitor the operational status of receivers and source drivers. When an abnormality is detected, the system provides feedback to switch from normal operation mode to abnormal operation mode, thereby preventing data transmission errors and ensuring video data integrity without significantly impacting overall transmission efficiency.
Data Source
AI summary
A first receiver receives serial data including multiple odd-numbered pixels arranged horizontally at odd-numbered positions in a frame. A second receiver receives serial data including multiple even-numbered pixels arranged horizontally at even-numbered positions in a frame. A signal processing unit integrates the multiple odd-numbered and even-numbered pixels, so as to generate line data. A first reception abnormal state detector detects an abnormal state in the first receiver. A second reception abnormal state detector detects an abnormal state in the second receiver. When the first reception abnormal state detector detects an abnormal state, the signal processing unit restores odd-numbered pixels using even-numbered pixels. When the second reception abnormal state detector detects an abnormal state, the signal processing unit restores even-numbered pixels using odd-numbered pixels.