Display Driver Priority Sub-Area Segmentation
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Solution Overview
Problem
Conventional display panels in electronic devices can only display images in a single mode, leading to inefficient power consumption and reduced battery life, as they lack the ability to prioritize and adjust pixel units based on the importance of image data.
Innovation Solution
A method is introduced to divide the display array into sub-display-areas with different priorities, where pixel units in high-priority areas are controlled based on original data and those in low-priority areas are controlled using corrected data to reduce power consumption, allowing for diversified display modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the display panel displays images in a single mode using all pixel units, then the display completeness is maintained, but the power consumption increases
Solution Approach 1:
The display array is divided into multiple sub-display-areas with different priorities (first sub-display-area with highest priority, second sub-display-area with second highest priority, etc.). This segmentation allows different regions to be controlled differently, enabling the system to reduce power consumption by adjusting or turning off pixel units in lower priority areas while maintaining display functionality.
Solution Approach 2:
The display panel dynamically adjusts its operation mode based on priority levels. Pixel units in different sub-display-areas can be controlled with different strategies (full control for highest priority, partial control or shutdown for lower priorities), providing adaptive power management while maintaining display completeness where needed.
2Duration of action of moving object
If the display panel reduces power consumption by adjusting pixel units, then the battery life is improved, but the display quality in adjusted areas deteriorates
Solution Approach 1:
Different quality levels are applied to different sub-display-areas based on their priority. The first sub-display-area (highest priority) maintains full display quality with all pixel units controlled, while lower priority areas accept reduced quality in exchange for power savings. This local differentiation resolves the contradiction by preserving quality where it matters most.
Solution Approach 2:
Instead of applying uniform power reduction across the entire display, the system applies partial action only to lower priority sub-display-areas. The highest priority area receives full control and maintains complete display quality, while other areas receive reduced control, achieving a balance between battery life extension and display quality preservation.
3Productivity
If the display panel uses a single display mode, then the control simplicity is maintained, but the power management efficiency decreases
Solution Approach 1:
The display array is segmented into priority-based sub-display-areas, enabling differentiated power management strategies for different regions. This segmentation improves power management efficiency by allowing the system to control power consumption on a regional basis rather than uniformly, despite the increased control complexity.
Solution Approach 2:
The system changes operational parameters (control level, brightness, active state) based on the priority of different sub-display-areas. By varying these parameters according to regional importance, the system achieves improved power management efficiency while managing the complexity through systematic parameter adjustment.
Data Source
AI summary
A method for driving display of a display panel, a display driver and an electronic device are provided. The display panel includes a display array for displaying an image, the display array includes multiple pixel units arranged in an array, the method includes: obtaining to-be-displayed data of the pixel units; dividing the display array into at least two sub-display-areas with different priorities based on the to-be-displayed data of each pixel unit, each sub-display-area includes multiple pixel units arranged consecutively; and controlling the pixel units in each sub-display-area for image display based on the priority; controlling, for a sub-display-area with highest priority, the pixel units for image display based on the to-be-displayed data; controlling, for a sub-display-area with non-highest priority, at least part of the pixel units for image display based on corrected display data.