Display Data Alignment for Motion Blur and Brightness
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Solution Overview
Problem
Hold type display devices, such as LCDs, suffer from brightness deterioration and motion blurring in motion pictures due to the existing methods that reduce data holding time and insert black data, which effectively decrease picture brightness.
Innovation Solution
A display device and driving method that analyze the gray level of input data and only insert black data into areas with less than a designated reference gray level, aligning data to minimize brightness loss and motion blurring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If black data is inserted into all frame data to reduce motion blurring, then motion blurring is reduced, but picture brightness is remarkably decreased
Solution Approach 1:
The patent applies local quality by selectively inserting black data only in specific regions where the gray level is below the reference gray level, rather than uniformly inserting black data across the entire frame. This localized approach targets motion blurring problems in dark regions while preserving brightness in brighter regions, thus resolving the contradiction between reducing motion blurring and maintaining picture brightness.
2Object-affected harmful factors
If data holding time is reduced to minimize motion blurring, then motion blurring is reduced, but the holding time required for stable image display is compromised
Solution Approach 1:
The patent employs periodic action by inserting black data at specific periodic intervals within the frame period, creating a pseudo-impulse driving pattern. This periodic insertion of black data in low gray level regions allows the display to achieve impulse-type characteristics that reduce motion blurring, while maintaining adequate holding time for stable image display in high gray level regions.
Data Source
AI summary
The display device may include a data aligning part that analyzes a gray level of input data and inserts black data into frame data having less than a designated reference gray level; and a driver that displays the data from the data aligning part in a display panel.