Display Middle Mold Color Compensator Edge Flashlighting
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Solution Overview
Problem
Display apparatuses with non-emissive type panels often experience flashlighting and color deviation due to the positioning of quantum dot sheets, leading to deteriorated image quality.
Innovation Solution
Incorporating a middle mold with a color compensator, typically formed by mixing resin and blue coloring agents, positioned between the display panel and the quantum dot sheet to mix light emitted from the light source with the converted light, ensuring uniform white light output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the quantum dot sheet is positioned on the middle mold, then the optical properties of light are improved, but flashlighting and color deviation occur on edges of the display panel
Solution Approach 1:
A color compensator is introduced as an intermediary component between the quantum dot sheet and the display panel. This color compensator specifically compensates for color deviations in the blue wavelength range, mixing the light from the light source with the converted light to provide uniform white light and eliminate the harmful edge effects while preserving the optical enhancement benefits.
Solution Approach 2:
The color compensator is strategically positioned only at the edge regions of the display panel where flashlighting and color deviation occur. This localized approach addresses the specific problem areas without affecting the overall optical performance, applying different optical properties to different regions of the display panel.
2Ease of manufacture
If the middle mold structure is simplified, then manufacturing ease is improved, but color uniformity deteriorates
Solution Approach 1:
The middle mold is divided into distinct functional regions: a main body portion and edge portions. The color compensator is specifically positioned on the edge portions, separating the color compensation function from the overall mold structure. This segmentation allows the middle mold to maintain structural simplicity while achieving precise color uniformity through the specialized edge regions.
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 configuration effectively prevents flashlighting and color deviation by ensuring uniform white light distribution across the display panel, enhancing image quality.
Implementation Method 1
a quantum dot sheet positioned between the display panel and the middle mold, the quantum dot sheet configured to convert a wavelength of light emitted from the light source
Implementation Method 2
the middle mold is configured to support the quantum dot sheet, wherein the middle mold comprises a color compensator having a blue color that is configured to mix the light emitted from the light source with the light transmitted from the quantum dot sheet thereby to provide uniform white light to outside of the display panel
Data Source
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AI summary
A display apparatus includes a display panel that displays an image, a light source that supplies light to the display panel, a middle mold positioned between the display panel and the light source, and a quantum dot sheet positioned between the display panel and the middle mold that converts a wavelength of light emitted from the light source, and the middle mold includes a color compensator having blue color that provides uniform white light to outside of the display panel.