Non-Rectangular Display Region Pixel Data Packing
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Solution Overview
Problem
Existing display systems face inefficiencies in power consumption and performance when driving display panels with non-rectangular valid display regions, as they often process and drive pixel data for both valid and non-valid regions, leading to increased power usage and resource wastage.
Innovation Solution
The method involves an application processor that receives screen information for a non-rectangular valid display region, packs and outputs only the necessary valid pixel data, which is then unpacked and driven by a display driver IC to display only the valid image data on the display panel, thereby reducing power consumption and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display system processes pixel data for both valid and non-valid display regions, then the display coverage is maximized, but power consumption increases and processing efficiency decreases
Solution Approach 1:
The patent extracts and processes only the valid pixel data corresponding to the non-rectangular valid display region, eliminating the need to process invalid pixel data. The application processor receives screen information defining the valid region, packs only the necessary valid pixel data, and transmits it to the display driver IC, which unpacks and displays it. This extraction principle directly reduces power consumption and improves processing efficiency by removing unnecessary processing operations.
2Loss of energy
If the display system processes only valid pixel data for non-rectangular regions, then power consumption decreases, but the complexity of data packing and unpacking increases
Solution Approach 1:
The patent introduces an intermediary data packing mechanism where the application processor packs valid pixel data according to screen information before transmission, and the display driver IC unpacks it at the receiving end. This intermediary packing/unpacking process acts as a mediator that enables efficient valid-data-only transmission while managing the complexity through structured data format conversion, thereby reducing overall system power consumption despite the added processing steps.
3Productivity
If the display driver receives and unpacks packed valid pixel data, then processing efficiency improves, but the device complexity increases
Solution Approach 1:
The patent segments the display processing function into distinct stages: the application processor handles data generation and packing based on screen information, while the display driver IC handles unpacking and display output. This segmentation allows each component to be optimized for its specific function, improving overall processing efficiency while distributing complexity across multiple components rather than concentrating it in a single device.
Data Source
AI summary
In a method of operating an application processor to control a display device including a non-rectangular valid display region, screen information regarding the non-rectangular valid display region is received, and a plurality of pieces of valid pixel data selected based on the screen information and corresponding to the non-rectangular valid display region are output to the display device.