Display Device Motion Blur Reduction via Software Frame Insertion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current black frame insertion technologies for reducing motion blur in image display devices are costly due to the need for high-standard scalers and extra control circuits, and they do not efficiently eliminate red residues without altering the backlight control mechanism.
Innovation Solution
A control method and device that enter a motion blur reduction (MBR) mode by writing a double frequency of a vertical synchronous signal into a storage unit, allowing alternative output of frame data and black-insertion data at a higher frequency, enabling effective motion blur reduction and red residue elimination without additional hardware or backlight mechanism changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If black frame insertion technology is implemented using a high standard scaler that alternately outputs normal frames and full black frames at double frequency, then motion blur is reduced, but the cost increases
Solution Approach 1:
The patent uses software-based frame duplication and black frame insertion through image processing algorithms, creating virtual black frames from existing frame data rather than requiring hardware to physically generate and alternate between full-resolution frames and black frames at double frequency
Solution Approach 2:
The patent replaces the mechanical/hardware-based approach of using a high standard scaler with dual-frequency output with a software-based image processing solution that achieves the same motion blur reduction effect through algorithmic manipulation of frame data
2Reliability
If black frames are inserted into normal frames by controlling the ON/OFF state of backlight, then motion blur is reduced, but extra control circuits are required which increases cost
Solution Approach 1:
The patent creates black frame data through software processing of existing image data rather than using hardware circuits to control backlight ON/OFF states, eliminating the need for extra control circuitry
Solution Approach 2:
The patent replaces the hardware-based backlight control mechanism with software-based image processing that generates black frame inserts through algorithmic manipulation, substituting electronic control circuits with software algorithms
3Reliability
If MPRT technology is used to reduce frame blurs by temporarily turning off the backlight during screen color conversion, then frame smearing and afterimages are reduced, but the backlight control mechanism must be modified
Solution Approach 1:
The patent generates black frame data through software processing of existing frame data, creating the effect of black frame insertion without requiring modification of the backlight control mechanism or timing
Solution Approach 2:
Instead of controlling the backlight to turn off during color conversion (MPRT approach), the patent inverts the approach by processing the image data software-wise to create black frame inserts, achieving the same visual effect without touching the backlight control system
Data Source
AI summary
The application discloses an image display device and a control method thereof. The control method for the image display device includes: receiving a first image signal from a host and displaying a frame, a first frame data of the first image signal having a first frequency; determining that the image display device enters a Motion Blur Reduction (MBR) mode and writing a double frequency of a vertical synchronous signal into a storage unit; and informing the host to read the storage unit and alternatively outputting a second frame data and a black-insertion frame data from the host, the second frame data having a second frequency higher than the first frequency.