Display Panel Pixel Island Partitioning for Power Optimization
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Solution Overview
Problem
Current display technologies face limitations in implementing vertical partitioned driving for ultra-high-resolution displays due to system capacity and power consumption constraints, while only horizontal partitioning is feasible, which restricts the widespread adoption of high-resolution displays.
Innovation Solution
A display panel design that includes scanning lines, data lines, sub-pixels, scanning signal input lines, control signal lines, and control circuits arranged in a specific configuration to enable both horizontal and vertical partitioned control of pixel islands, allowing for efficient energy management by adjusting the refreshing rates of gaze and non-gaze regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If horizontal partitioned driving is implemented, then power consumption is reduced and system resources are optimized, but vertical partitioning capability is lost, limiting ultra-high-resolution display adoption
Solution Approach 1:
The display panel is segmented into multiple pixel islands arranged in a matrix, with each pixel island independently controllable through separate scanning lines and control circuits. This segmentation enables both horizontal and vertical partitioning, allowing different refresh rates for different regions while maintaining ultra-high-resolution capability across the entire display.
Solution Approach 2:
The patent extends partitioning from a single horizontal dimension to two dimensions by introducing vertical segmentation through multiple scanning lines and control circuits. This two-dimensional partitioning matrix enables independent control of pixel islands in both horizontal and vertical directions, resolving the limitation of horizontal-only partitioning.
2Manufacturing precision
If ultra-high-resolution display is implemented, then display quality is improved, but system capacity and graphics card processing speed become limiting factors
Solution Approach 1:
The high-resolution display is divided into multiple pixel islands that can be independently controlled and refreshed. This segmentation allows the system to process and render different regions at different rates, reducing the overall processing burden on the graphics card while maintaining ultra-high-resolution quality in visible regions.
Solution Approach 2:
The patent implements differential refresh rates where only certain pixel islands are refreshed at full speed while others use lower refresh rates. This partial action approach maintains high display quality in active regions while reducing unnecessary processing in inactive regions, thereby lowering system capacity requirements.
3Manufacturing precision
If refresh rate is increased for high-resolution display, then display quality is improved, but power consumption increases
Solution Approach 1:
Different pixel islands are assigned different refresh rates based on their importance and visibility. Critical regions maintain high refresh rates for superior display quality, while less critical regions use lower refresh rates to reduce power consumption. This local quality differentiation optimizes the balance between display quality and energy usage.
Solution Approach 2:
The system applies full refresh rate only to necessary pixel islands while using reduced refresh rates for others. This partial application of high refresh rate maintains display quality where needed while avoiding excessive power consumption across the entire display panel.
Data Source
AI summary
Disclosed are a display panel, a display apparatus, a driving method thereof. The display panel includes: a first base substrate; scanning lines; data lines; sub-pixels, in regions divided by the scanning lines and the data lines, at least two sub-pixels adjacent in a first direction and a second direction constitute a pixel island, the sub-pixels constitute pixel islands, each pixel island includes n sub-pixel rows in the second direction; scanning signal input lines, in one-to-one correspondence to the scanning lines; control signal lines; fixed potential lines; and control circuits, located between the adjacent sub-pixels. One pixel island is connected to at least n control circuits, one control circuit corresponds to one row of sub-pixels in the pixel island. The control circuits are configured to: transfer, under control of control signal lines, signals provided by the scanning signal input lines or the fixed potential lines to the scanning lines.