Color Filter Array Panel Using AIEE Solid Fluorescent Material
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Solution Overview
Problem
Liquid crystal display panels face challenges in achieving low power consumption and high transmittance due to light absorption by traditional color filter materials, which distort the spectrum and reduce overall luminance.
Innovation Solution
Incorporating a solid fluorescent material with aggregation-induced emission enhancement (AIEE) properties into the color filter, which increases fluorescence efficiency when in a solid state, and a light source unit that supplies light within a specific wavelength range to enhance transmittance and luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional color filter materials are used, then color filtering function is achieved, but light transmittance is reduced and power consumption increases
Solution Approach 1:
The patent changes the chemical composition parameters of the color filter material by incorporating fluorescent compounds with specific emission characteristics. This parameter change allows the color filter to achieve both color filtering and light emission functions, reducing the need for high-power backlight compensation and thereby lowering overall power consumption while maintaining light transmittance
Solution Approach 2:
The patent uses composite materials combining traditional color filter substances with fluorescent materials. This composite structure enables the color filter to not only filter light but also emit light through fluorescence, effectively reducing light absorption losses and improving overall transmittance efficiency
2Illumination intensity
If traditional color filter materials are used, then color filtering is achieved, but spectrum distortion occurs and luminance is reduced
Solution Approach 1:
The patent utilizes fluorescent materials with specific emission spectra to generate desired colors through fluorescence rather than simple absorption. This color generation mechanism avoids the spectrum distortion caused by traditional absorption-based color filters and maintains broader spectral content, thereby improving luminance and color quality
Solution Approach 2:
The fluorescent material acts as an intermediary that converts absorbed light into emitted light at desired wavelengths. This intermediary mechanism preserves more of the original spectrum while producing accurate colors, avoiding the harmful spectrum distortion effect of direct absorption by traditional color filter materials
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
The solution enables low power operation while improving transmittance and luminance by leveraging the increased fluorescence efficiency of the solid fluorescent material and optimized light source, addressing the limitations of traditional color filter materials.
Implementation Method 1
a solid fluorescent material. The solid fluorescent material is an aggregation induced emission enhancement (AIEE) material of which a liquid state is solidified to increase fluorescence efficiency
Data Source
AI summary
Provided is a color filter array panel. The color filter array panel according to exemplary embodiments of the present invention includes: a substrate; a color filter disposed on the substrate and including a colorant including at least one of a pigment and a dye, and a solid fluorescent material; and a light source unit supplying light to the color filter, in which the solid fluorescent material is an aggregation induced emission enhancement (AIEE) material of which a liquid state is solidified to increase fluorescence efficiency.