TFT LCD Color Shift Compensation via Abnormal Image Detection
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Solution Overview
Problem
Current color shift compensation methods in TFT liquid crystal display panels often introduce noise, worsening display quality due to their structural design, leading to inconsistent charging times and color shifts during the display of mixed-color images.
Innovation Solution
A method for color shift compensation based on abnormal image detection, which involves storing sub-pixel values, judging differences between adjacent and spaced sub-pixel values, and selectively initiating color shift compensation to avoid noise by determining if an image requires compensation, thereby improving display quality and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If color shift compensation is applied to all display data, then color consistency is improved, but noise is introduced worsening display quality
Solution Approach 1:
The patent changes the parameter of compensation application from universal to conditional by detecting image characteristics (whether the image is a photograph or cartoon/comics). This parameter change allows the system to apply color shift compensation only when necessary (for photographs), thereby maintaining color consistency while avoiding the introduction of noise in images where compensation is unnecessary (cartoons/comics).
Solution Approach 2:
The system performs self-detection of image type characteristics and automatically determines whether color shift compensation should be applied. The detection unit analyzes the input image data to identify whether it represents a photograph or cartoon/comics, and the control unit automatically adjusts the compensation application accordingly, making the system self-regulating without external intervention.
2Stability of the object's composition
If functional compensation is applied in TFT liquid crystal display, then display uniformity is improved, but noise is generated making screen display worse
Solution Approach 1:
The patent changes the operational parameter from continuous compensation to conditional compensation based on image type detection. By detecting whether the displayed content is a photograph or cartoon/comics, the system adjusts the compensation function's activation state, applying uniformity correction only when needed and avoiding noise generation in inappropriate scenarios.
Solution Approach 2:
The system implements a feedback mechanism where the detection unit continuously monitors image characteristics and provides feedback to the control unit. Based on this feedback about image type (photograph vs. cartoon/comics), the control unit dynamically adjusts the compensation function's activation, creating a closed-loop control system that optimizes display quality by preventing noise while maintaining uniformity when necessary.
Data Source
AI summary
The present application discloses a method for color shift compensation based on an abnormal image detection and a display device, including storing inputted n numbers of sub-pixel values in a row storage space; judging every spaced two of the sub-pixel values whether are the same or not; initiating a color shift compensation if the spaced two of the sub-pixel values being different; judging every adjacent two of the sub-pixel values whether are different if every spaced two of the sub-pixel values are the same; judging every one of the sub-pixel values in a current row storage space whether is different from a sub-pixel value in a previous row storage space corresponding to the sub-pixel value in the current row storage space; doing not initiate a color shift compensation if every one of the sub-pixel values in the current row storage space is different from that in the previous row.