OLED Motion Blur Reduction via Four-Region Segmentation
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Solution Overview
Problem
Conventional methods for reducing motion blur in organic light emitting displays either have little effect or increase power consumption, with methods like increasing frame rate or inserting black data causing inefficiencies.
Innovation Solution
The display is divided into four pixel regions, with specific scan and data signal timing to sequentially supply signals to odd and even scan lines and data lines, allowing for effective removal of motion blur without increasing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the frame rate is increased to repeatedly display the same frame, then motion blur is reduced, but power consumption increases
Solution Approach 1:
The screen is divided into four pixel regions (first, second, third, and fourth pixel regions) that are scanned sequentially within a single frame period. This segmentation allows the display to effectively reduce motion blur by displaying multiple region updates per frame without increasing the overall frame rate or power consumption.
2Speed
If black data is inserted to remove motion blur, then motion blur is reduced, but flickering occurs
Solution Approach 1:
The scan driver performs periodic scanning of the four pixel regions in sequence (odd scan lines, even scan lines, odd scan lines again, even scan lines again) within one frame period. This periodic multi-region scanning provides continuous image updates that reduce motion blur without the need for black data insertion, thereby avoiding flickering.
3Speed
If the screen is divided into four pixel regions and scanned sequentially, then motion blur is removed, but device complexity increases
Solution Approach 1:
The scan driver and data driver are designed to handle multiple pixel regions using the same odd and even scan lines and data lines. The scan driver can sequentially supply scan signals to odd and even scan lines multiple times within one frame, and the data driver can supply data signals to different pixel regions through the same physical data lines at different time periods. This multi-functional design achieves motion blur reduction without requiring additional physical scanning components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces motion blur by dividing the screen into four pixel regions and optimizing signal timing, thereby maintaining low power consumption.
Implementation Method 1
The organic light emitting display displays images using organic light emitting diodes (OLED) that generate light by re-combination of electrons and holes
Data Source
AI summary
An organic light emitting display includes a first pixel region including pixels coupled to odd scan lines and odd data lines, a second pixel region including pixels coupled to even scan lines and the odd data lines, a third pixel region including pixels coupled to the odd scan lines and even data lines, a fourth pixel region including pixels coupled to the even scan lines and the even data lines, a data analyzing unit for dividing input screen data of one frame into the pixel regions, a scan driver for sequentially supplying scan signals to the odd scan lines twice and for sequentially supplying scan signals to the even scan lines twice in one frame, and a data driver for supplying data signals corresponding to the screen data divided by the data analyzing unit to the pixel regions through the data lines.