Color Conversion Panel With Light-Absorbing Layer for External Reflection
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Solution Overview
Problem
Conventional display devices with color conversion panels suffer from external light reflection due to quantum dots or scattering bodies, deteriorating display quality.
Innovation Solution
Incorporation of a light absorbing layer, such as a scattering absorption layer, between the color conversion layer and the light emitting device to absorb scattered and reflected external light, reducing reflection and enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a color conversion panel with quantum dots or scattering bodies is used to achieve color conversion, then color gamut and luminance are improved, but external light reflection occurs which deteriorates display quality
Solution Approach 1:
A light absorbing layer is introduced as an intermediary component between the color conversion layer and the light emitting device. This layer absorbs scattered and reflected external light, preventing it from reaching the viewer and causing visual interference. The light absorbing layer acts as a mediator that eliminates the harmful reflection effect while preserving the beneficial color conversion and luminance enhancement functions of the quantum dots or scattering bodies.
Solution Approach 2:
The harmful reflection component is extracted and isolated from the overall display system by introducing a dedicated light absorbing layer. This layer specifically targets and removes reflected external light from the optical path, separating the unwanted reflection effect from the desired color conversion and luminance functions.
2Object-affected harmful factors
If a light absorbing layer is added to reduce external light reflection, then display quality is improved, but device complexity increases
Solution Approach 1:
The light absorbing layer is designed to perform multiple functions simultaneously: it absorbs scattered light from quantum dots, blocks reflected external light, and maintains color accuracy. By consolidating these functions into a single layer, the patent avoids the need for multiple separate components, thereby limiting the increase in device complexity while achieving comprehensive improvement in display quality.
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 light absorbing layer effectively reduces external light reflection, thereby improving the display quality of the display device by minimizing interference and maintaining color accuracy.
Implementation Method 1
a color conversion layer which color converts incident light
Implementation Method 2
scatters and reflects external light
Implementation Method 3
a light absorbing layer which faces the color conversion layer and absorbs light which is scattered and reflected from the color conversion layer
Implementation Method 4
the light absorbing layer may include in order from the color conversion layer a linearly polarizing layer
Implementation Method 5
the light absorbing layer may include in order from the color conversion layer a linearly polarizing layer, and a phase delay layer
Data Source
AI summary
A color conversion panel includes a plurality of pixel areas including a first pixel area and a second pixel area, and a non-pixel area which is adjacent to the first pixel area and the second pixel area, a light blocking layer in the non-pixel area, a color filter layer including a first color filter in the first pixel area and a second color filter in the second pixel area, a color conversion layer which color converts incident light, and scatters and reflects external light, the color conversion layer including a first color conversion pattern corresponding to the first color filter and a light transmission pattern corresponding to the second color filter, and a light absorbing layer which faces the color conversion layer and absorbs light which is scattered and reflected from the color conversion layer.