Over-Drive Value Generating Apparatus for 3D Display Crosstalk Reduction
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Solution Overview
Problem
Current methods for determining over-drive gray scales in 3D display devices with shutter glasses are time-consuming and lack accuracy, affecting the 3D effect due to poor synchronization between liquid crystal display response time and backlight scanning timing, leading to crosstalk issues.
Innovation Solution
An over-drive value generating apparatus that includes a measuring module, interpolation module, calculating module, and determining module to quickly and accurately determine suitable over-drive gray scales by measuring, interpolating, and calculating crosstalk values, reducing the need for manual operation and measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement and repeated testing are used to determine over-drive gray scales, then measurement precision can be achieved, but the process becomes extremely time-consuming and productivity decreases
Solution Approach 1:
The patent replaces manual measurement and testing with an automated computational system. The measuring module automatically captures brightness values, the interpolation module computationally generates intermediate brightness values through linear interpolation, and the calculating module computes crosstalk values automatically. This substitution of mechanical/manual processes with automated computational systems resolves the contradiction by achieving both high precision and high productivity.
Solution Approach 2:
The patent creates a virtual copy of the measurement process through mathematical modeling. Instead of physically testing every possible gray scale combination, the system creates a brightness value matrix through interpolation that represents the entire gray scale range. This virtual copy allows the system to determine over-drive gray scales without repeated physical measurements, thereby improving productivity while maintaining precision.
2Measurement precision
If over-drive gray scales are determined manually through repeated measurement, then accuracy can be verified, but the complexity of the determination process increases
Solution Approach 1:
The patent divides the complex determination process into distinct functional modules: a measuring module for capturing brightness values, an interpolation module for generating intermediate values through linear interpolation, and a calculating module for computing crosstalk values. This segmentation of the complex process into manageable, specialized modules reduces overall complexity while maintaining precision through systematic processing of each component.
Solution Approach 2:
The interpolation module acts as an intermediary between the raw brightness value measurements and the final over-drive gray scale determination. It processes the measured data through linear interpolation to generate a complete brightness value matrix, simplifying the subsequent calculation of crosstalk values and the determination of optimal gray scales. This intermediary step reduces the complexity of direct manual determination.
3Productivity
If manual determination methods are used, then process simplicity is maintained, but measurement precision and accuracy are insufficient for 3D display requirements
Solution Approach 1:
The patent incorporates feedback through the calculation and analysis of crosstalk values. The calculating module computes crosstalk values from the brightness value matrix, and the determining module uses these feedback results to identify the optimal over-drive gray scales that minimize crosstalk. This feedback mechanism ensures high measurement precision by continuously evaluating and refining the gray scale selections based on actual crosstalk performance, while maintaining high productivity through automated processing.
Data Source
AI summary
The present invention provides an over-drive value generating apparatus, which includes: a measuring module utilized to measure a plurality of brightness values shown by using a plurality of first-eye gray scales in every n scales and a plurality of second-eye gray scales in every n scales; an interpolation module utilized to linearly interpolate the brightness values into N×N brightness values which consist of N first-eye gray scales respectively corresponding to N second-eye gray scales; a calculating module utilized to calculate N×N crosstalk values of the N first-eye gray scales respectively switching to the N second-eye gray scales; and a determining module utilized to determine a first over-drive gray scale and a second over-drive gray scale. The present invention further provides a method for generating over-drive values.