Semiconductor Module Wavelength Deviation Control
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Solution Overview
Problem
Display devices face limitations in color reproducibility and wavelength distribution due to factors like backlight reliance in liquid crystal displays and vulnerability to moisture in organic light-emitting displays, as well as challenges in color reproducibility during production of light-emitting diode displays.
Innovation Solution
A semiconductor module is designed with a panel substrate featuring regions of semiconductor devices that maintain a controlled wavelength deviation, ensuring consistent emission of red, green, and blue light across the module, with specific wavelength patterns and separation distances to enhance color reproducibility and reduce wavelength deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If liquid crystal display uses backlight unit, then display function is achieved, but design freedom is limited and brightness is reduced
Solution Approach 1:
The patent extracts and removes the backlight unit from the display structure, replacing it with self-emissive semiconductor devices (LEDs) directly integrated into the substrate. This elimination of the backlight component resolves the contradiction by achieving both improved brightness and simplified device structure.
Solution Approach 2:
The patent replaces the passive optical system (backlight unit with light guides and diffusers) with an active electronic emission system (semiconductor devices that generate light electroluminescently). This substitution eliminates mechanical/optical components and directly produces light, improving both brightness and reducing structural complexity.
2Illumination intensity
If organic light-emitting display uses organic material, then light emission is achieved, but moisture vulnerability increases and reliability degrades
Solution Approach 1:
The patent changes the material composition parameter from organic materials to inorganic semiconductor materials (such as GaN, InGaN). This material substitution maintains light emission capability while fundamentally improving moisture resistance and overall reliability, as inorganic semiconductors are inherently more stable in humid environments.
3Productivity
If light-emitting diode display is produced, then display function is achieved, but color reproducibility is degraded
Solution Approach 1:
The patent applies local quality control by dividing the semiconductor substrate into multiple regions with specifically optimized compositions. Different semiconductor layers or devices are tailored with precise material ratios and structural characteristics to emit specific wavelengths, ensuring consistent color reproduction across the entire display while maintaining production efficiency.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the semiconductor devices with controlled wavelength characteristics during the manufacturing process. By establishing precise wavelength patterns and separation distances in the initial production stage, the system ensures consistent color reproduction without requiring post-production adjustments, thus maintaining high productivity.
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 improved wavelength distribution and color reproducibility in display devices, addressing the limitations of existing technologies by ensuring consistent light emission and reduced wavelength differences between semiconductor modules.
Implementation Method 1
the plurality of first semiconductor devices disposed in the first region and a plurality of second semiconductor devices disposed in the second region on the panel substrate... The plurality of first semiconductor devices may emit at least one among red light, green light, and blue light
Data Source
AI summary
Disclosed in an embodiment is a display device comprising a panel substrate and a plurality of semiconductor devices disposed on the panel substrate, wherein the panel substrate includes first and second regions disposed in a first direction, the plurality of semiconductor devices include a plurality of first semiconductor devices disposed in the first region and a plurality of second semiconductor devices disposed in the second region, the wavelength deviation between the first semiconductor device disposed at the edge of the first region and the second semiconductor device disposed at the edge of the second region is within 2 nm, and the wavelength pattern of the plurality of first semiconductor devices in the first direction is the same as the wavelength pattern of the plurality of second semiconductor devices in the first direction.