Color Conversion Panel Dummy Openings Ink Volume Control
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Solution Overview
Problem
Existing display devices with color conversion panels face challenges in accurately measuring the volume of the ink layer, which is crucial for maintaining optimal light efficiency and display quality.
Innovation Solution
The proposed solution involves a color conversion panel design with a substrate, a color filter layer, and a bank that defines active and dummy openings with varying extents. This design allows for the formation of active and dummy ink layers with equal volumes, enabling quick and accurate measurement by comparing the brightness of these layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the thickness of the ink layer is maintained within a specific range to increase light efficiency, then light efficiency is improved, but it becomes difficult to accurately measure and control the ink layer volume
Solution Approach 1:
The patent creates dummy openings that are copies of the active opening but with different known volumes. By measuring the ink layer volume in these dummy openings and comparing it to the active opening, the system can accurately determine the ink layer volume in the active area without directly measuring the thin ink layer itself, thus resolving the measurement accuracy issue while maintaining light efficiency.
Solution Approach 2:
The dummy openings serve as intermediary structures that facilitate indirect measurement of the ink layer volume. Instead of directly measuring the difficult-to-measure ink layer in the active opening, the system uses the dummy openings with known volumes as mediators to infer the ink layer characteristics, enabling accurate volume control while preserving light efficiency.
2Measurement precision
If traditional methods are used to measure ink layer volume, then measurement can be performed, but the process is time-consuming and inaccurate
Solution Approach 1:
The patent pre-establishes dummy openings with known volumes before the actual measurement process. This preliminary preparation allows for rapid comparison-based measurement later, eliminating the need for time-consuming direct measurement methods and enabling quick, accurate ink layer volume determination.
Solution Approach 2:
By creating dummy openings as copies with known characteristics, the system enables rapid indirect measurement through comparison rather than direct measurement. This copying approach significantly reduces measurement time while maintaining high accuracy, as the dummy openings provide ready-made reference standards for quick comparison.
3Manufacturing precision
If the ink layer volume is not precisely controlled, then manufacturing is simpler, but display quality and color reproduction deteriorate
Solution Approach 1:
The patent uses dummy openings as copies with known volumes to establish reference standards. By comparing the active opening against these copied reference structures, the system achieves precise ink layer volume control without requiring complex measurement equipment or procedures, thus improving manufacturing precision while keeping the overall device structure relatively simple.
Solution Approach 2:
The dummy openings serve as self-contained reference standards that automatically provide measurement benchmarks. The structure itself contains the information needed for precise volume control, eliminating the need for external complex measurement systems and enabling precise manufacturing through the panel's own built-in reference structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach improves the display quality of the color conversion panel and the associated display device by allowing precise control over the ink layer volume, thereby enhancing light efficiency and color reproduction.
Implementation Method 1
A display device including a color conversion panel has been proposed in order to implement excellent color reproduction and luminance. The color conversion panel may include an ink layer including quantum dots or the like.
Data Source
AI summary
A color conversion panel includes an active area corresponding to a display area and including an active pixel portion at which light is emitted, a dummy area adjacent to the active area and including a first dummy pixel portion and a second dummy pixel portion, and a color conversion layer including a bank layer in both the active area and the dummy area. The bank layer defines each of an active opening corresponding to the active pixel portion and defining an active opening planar area, a first dummy opening corresponding to the first dummy pixel portion and defining a first planar area, and a second dummy opening corresponding to the second dummy pixel portion and defining a second planar area. The first planar area of the first dummy opening is different from the second planar area of the second dummy opening.