Integrated Backlight Color Conversion for Thinner Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display apparatus manufacturing processes are complex and costly, with a need for simplification and cost reduction, particularly in achieving improved color gamut without additional optical sheets.
Innovation Solution
Incorporating a light source device with a substrate, light sources, a light conversion member, and a conversion member cover that allows light to pass through, while using a reflective member to guide and enhance light emission, thereby eliminating the need for separate optical sheets for color gamut improvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If additional optical sheets are used to improve color gamut, then color gamut is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the light source, light conversion member, and reflective member into a single integrated light source device assembly. This merging eliminates the need for separate optical sheets to improve color gamut, as the color conversion is achieved within the backlight unit itself through the light conversion member that converts blue LED light to yellow light, creating a simplified structure that reduces both device complexity and manufacturing cost while maintaining improved color performance
2Illumination intensity
If additional optical sheets are used to improve color gamut, then color gamut is improved, but manufacturing cost increases
Solution Approach 1:
The patent integrates the color conversion function into the backlight unit by combining the light source, light conversion member, and reflective member into one assembly. This eliminates the need for additional optical sheets, thereby reducing the number of manufacturing steps and materials required, which directly reduces manufacturing cost while achieving improved color gamut through the light conversion member
3Illumination intensity
If additional optical sheets are used to improve color gamut, then color gamut is improved, but thickness increases
Solution Approach 1:
The patent merges the color conversion functionality into the existing backlight unit structure by integrating the light conversion member between the light source and the display panel. This eliminates the need for additional optical sheets that would increase thickness, as the color gamut improvement is achieved within the compact light source device assembly, thereby maintaining a thinner overall display apparatus
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 simplifies manufacturing, reduces costs, and achieves improved color gamut without additional optical sheets, resulting in a thinner display apparatus.
Implementation Method 1
a light conversion member configured to convert a wavelength of light emitted from the light source
Implementation Method 2
a reflective member covering at least a portion of the conversion member cover and configured to reflect light
Data Source
AI summary
A display apparatus comprises: a light source device configured to emit light; a display panel configured to display the light emitted from the light source device; and an optical sheet disposed at a rear of the display panel, wherein the light source device may include: a substrate; at least one light source electrically connected to the substrate; a light conversion member configured to convert a wavelength of light emitted from the light source; and a conversion member cover covering the light conversion member and configured to allow light to pass therethrough.