Sub-pixel Data Reordering for Display Bandwidth Reduction
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Solution Overview
Problem
Current display technologies face inefficiencies in transmitting image data due to the requirement of 24 bits per pixel in RGB format, which can be reduced by using sub-pixel formatted displays with fewer colors per pixel, such as RGBG or RGBW formats, but these require reordering and may not match the display's sub-pixel color order, leading to potential display quality issues.
Innovation Solution
A display system and method that generates sub-pixel formatted data in a specific order (e.g., RGBG or RGBW) and reorders it to match the display's sub-pixel color order, using a processor and sub-pixel conversion unit to convert RGB data into sub-pixel formatted data, which is then transmitted and applied to the display using standards like MIPI DSI or eDP, with indicators to ensure correct ordering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sub-pixel formatted data is transmitted to match display color order, then display quality is improved, but device complexity increases due to reordering requirements
Solution Approach 1:
The source device performs sub-pixel conversion and reordering operations in advance before transmission, so that the data arrives at the display device already in the correct format. This preliminary processing eliminates the need for complex reordering operations at the display device, reducing its complexity while maintaining high display quality.
Solution Approach 2:
A sub-pixel conversion unit acts as an intermediary component between the standard RGB data source and the sub-pixel formatted display. This intermediary performs the necessary data transformation and reordering, isolating the complexity from the display device itself and allowing the display to focus on its primary function of rendering high-quality images.
2Manufacturing precision
If 24-bit RGB data is transmitted, then color accuracy is maintained, but bandwidth consumption increases
Solution Approach 1:
The patent changes the data format parameters from standard 24-bit RGB to sub-pixel formatted data with fewer bits per pixel. By altering the organizational structure and bit depth parameters of the image data, the system achieves comparable color accuracy while significantly reducing the total bandwidth required for transmission.
Solution Approach 2:
The patent segments the traditional RGB pixel structure into sub-pixel components (such as RGBG or RGBW formats) and transmits them separately with optimized bit allocation. This segmentation allows each sub-pixel channel to use fewer bits while maintaining overall color accuracy, thereby reducing total bandwidth consumption.
3Quantity of substance
If sub-sampled pixel data is received, then bandwidth efficiency is improved, but processing complexity at the sink device increases
Solution Approach 1:
The source device performs all necessary sub-pixel conversion and reordering operations in advance before transmission. This preliminary action ensures that the sink device receives data already in the correct format, eliminating the need for complex processing at the receiving end while maintaining bandwidth efficiency.
Data Source
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AI summary
A display system including a sub-pixel formatted display (330) is disclosed. A source (310) generates image data, converts the image data into sub-pixel formatted data having a first sub-pixel colour order (RGBG), transmits the sub-pixel formatted data to a display device (320) including the display (330). The display device (320) converts the sub-pixel formatted data into sub-pixel formatted data having a second sub-pixel colour order, and applies the sub-pixel data with the second sub-pixel colour order to the display (320).