LCD Color Temperature Control via Pixel Electrode Patterns
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Solution Overview
Problem
Conventional liquid crystal display devices face challenges in precisely controlling color temperature and identifying specifications, especially when multiple color temperature settings coexist due to manufacturing errors, leading to difficulties in producing products with consistent characteristics.
Innovation Solution
The display device incorporates distinct metallic patterns and pixel electrode designs for each color, allowing precise control of light balance and easy identification of color temperature specifications through pattern recognition, with smaller pixel electrodes and varying slit configurations to optimize light emission and capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If distinct metallic patterns are formed at specific pixel locations to control color temperature, then color temperature control precision is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by forming distinct metallic patterns only at specific pixel locations (e.g., red pixel locations) rather than uniformly across all pixels. This localized approach allows precise control of color temperature at specific locations while avoiding unnecessary complexity throughout the entire display device. The metallic patterns are strategically placed to adjust color balance without requiring complex modifications to the entire pixel structure.
2Manufacturing precision
If metallic patterns are formed to adjust color temperature, then color temperature precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The metallic patterns are formed during the manufacturing process at predetermined locations before final assembly. This preliminary action allows color temperature adjustment to be built into the manufacturing process itself, enabling automatic identification and sorting of panels with different color temperature specifications. Panels can be pre-marked or pre-configured with distinct patterns corresponding to different color temperature grades, simplifying quality control and sorting.
3Measurement precision
If different metallic patterns are used for different color temperatures, then specification identification is improved, but device complexity increases
Solution Approach 1:
The patent utilizes color changes or metallic pattern variations that are visually distinct and easily identifiable. Different metallic patterns (e.g., different shapes, sizes, or arrangements at specific pixel locations) correspond to different color temperature specifications. These visual differences enable quick identification and sorting of panels without requiring complex measurement equipment, as the patterns themselves serve as visual codes for specification identification.
Data Source
AI summary
The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.