Display Light Scatterers for Smudge Obscuration
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Solution Overview
Problem
Display devices face challenges in preventing smudges from becoming visible, particularly in areas where light transmission and emission patterns overlap, affecting the clarity and visibility of the display.
Innovation Solution
The display device incorporates light-transmitting members with light scatterers and color filter members that form specific patterns to scatter light, ensuring that smudges are not visible by controlling the width, height, and concentration of light scatterers, and using wavelength shifters to maintain luminance consistency across different areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light-transmitting members with light scatterers are used to prevent smudges from becoming visible, then smudge visibility is reduced, but light transmission and luminance uniformity may be affected
Solution Approach 1:
The patent applies local quality by using light scatterers only in specific regions where smudges are most likely to be visible, rather than uniformly across the entire display. The light-transmitting members with light scatterers are positioned strategically to address smudge visibility issues while preserving luminance uniformity in critical display areas.
Solution Approach 2:
The patent employs parameter changes by adjusting the concentration, size, and distribution of light scatterers within the light-transmitting members. By optimizing these parameters, the patent achieves effective smudge obscuration while maintaining acceptable light transmission and luminance characteristics.
2Manufacturing precision
If color filter members form filtering pattern areas that overlap with light-emitting areas, then color reproduction is improved, but smudge visibility in overlapping regions may increase
Solution Approach 1:
The patent introduces light-transmitting members with light scatterers as an intermediary layer between the color filter members and the viewer. This intermediary layer helps obscure smudges that would otherwise be visible through the color filter pattern areas, while still allowing the color filters to perform their function of improving color reproduction.
3Object-affected harmful factors
If the width of light-transmitting members is increased to cover more area, then smudge coverage is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies segmentation by dividing the light-transmitting members into discrete elements with light scatterers, arranged in specific patterns rather than using a single large continuous structure. This segmentation approach provides adequate smudge coverage while simplifying manufacturing and reducing structural complexity.
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 effectively prevents smudges from affecting the display's clarity by ensuring uniform luminance and color reproduction, enhancing the visibility and reliability of the display device.
Implementation Method 1
the first light-transmitting members overlap with the first light-emitting areas and the first filtering pattern areas and comprise light scatterers, which scatter light
Data Source
AI summary
A display device is provided. The display device includes a first substrate; a second substrate facing the first substrate; light-emitting elements disposed between the first and second substrates, the light-emitting elements forming first light-emitting areas; first light-transmitting members disposed between the second substrate and the light-emitting elements; and color filter members disposed between the second substrate and the first light-transmitting members, wherein the color filter members form first filtering pattern areas that selectively transmit light and overlap with the first light-emitting areas, wherein the first light-transmitting members overlap with the first light-emitting areas and the first filtering pattern areas and comprise light scatterers that scatter light, and a width of the first light-transmitting members is greater than a width of the first light-emitting areas and a width of the first filtering pattern areas.