Micro-LED Row-Shift and Frame-Rotation Scheduling to Reduce Color Break-Up
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Micro-LED displays suffer from color break-up (CBU) due to the human eye detecting different subframe colors and spatial offsets, resulting in multiple slightly offset images of objects.
Innovation Solution
Implementing row-shifting and frame-rotation in the color updating schedule to minimize or eliminate CBU by adjusting the timing of color updates across rows and frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional color updating schedule is used, then manufacturing and operation are simple, but color break-up occurs causing multiple offset images
Solution Approach 1:
The patent applies dynamics by making the color updating schedule adaptive and variable. Instead of a fixed traditional schedule, the system dynamically adjusts the timing and sequence of color subframe updates based on detected motion or specific display conditions. This dynamic adjustment prevents color break-up artifacts while maintaining operational simplicity through automated detection and adaptation.
Solution Approach 2:
The patent changes the temporal parameters of the color updating schedule. By modifying when different color subframes are updated relative to each other (changing the timing parameters), the system eliminates color break-up. The invention introduces variable update intervals and sequencing that adapt to content characteristics, resolving the contradiction between image quality and schedule complexity.
2Reliability
If row-shifting and frame-rotation are implemented, then color break-up is minimized or eliminated, but the color updating schedule becomes more complex
Solution Approach 1:
The patent segments the display frame into multiple color subframes (e.g., red, green, blue components) and applies different update schedules to each segment. By dividing the color update process into separate controllable segments and applying row-shifting and frame-rotation techniques to each segment independently, the system achieves image consistency while managing complexity through modular organization of update operations.
Solution Approach 2:
The patent introduces spatial dimensionality changes through row-shifting (changing which rows are updated at each time step) and frame-rotation (changing the temporal sequence in which color components are updated). These dimensional transformations of the update schedule prevent color break-up by ensuring that no single color component remains static while others update, thereby achieving image consistency through multi-dimensional scheduling variations.
Data Source
AI summary
A micro-LED display panel includes a pixel array that includes a plurality of pixels arranged in a plurality of rows and columns, wherein each pixel of the pixel array includes a blue LED, a green LED, and a red LED. The display further includes a frame buffer and a bitplane generator. The bitplane generator is configured to receive display data from the frame buffer and to output a color updating schedule according to the display data. The color updating schedule updates a luminance and a color of the display data for each pixel in the pixel array during each of a plurality of time intervals that define a frame time of a frame. The color updating schedule row-shifts and frame-rotates at least one row of the frame.


