Light-Emitting Module Wavelength Control for Smooth Display Output
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Solution Overview
Problem
Conventional display devices face issues with light-emitting elements not being firmly and reliably connected to the display substrate, leading to inconsistent display of characters, symbols, images, or videos.
Innovation Solution
A light-emitting module with multiple light-emitting elements of different peak and dominant wavelengths, where the absolute differences between these wavelengths are carefully managed, along with specific semiconductor layer configurations and electrode arrangements, to ensure stable and uniform light emission, and a molding layer for improved light extraction and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional connection methods are used for light emitting elements, then manufacturing is simpler, but connection reliability and display smoothness deteriorate
Solution Approach 1:
The light emitting module is divided into distinct functional components: light emitting elements with specific wavelength characteristics, a base substrate for support, and a molding layer for protection and light extraction. This segmentation allows each component to be optimized independently for its specific function while maintaining overall connection reliability.
Solution Approach 2:
The patent specifies precise wavelength parameters for different light emitting elements (first peak wavelength, first dominant wavelength, second peak wavelength, second dominant wavelength) and controls the absolute value differences between these parameters. By carefully controlling these optical parameters, the module achieves reliable color rendering and display smoothness without requiring complex mechanical connection structures.
2Manufacturing precision
If light emitting elements are not firmly connected, then device complexity is reduced, but display quality and smoothness deteriorate
Solution Approach 1:
The patent replaces complex mechanical connection structures with optical parameter control. Instead of using intricate mechanical fixation mechanisms to ensure display quality, the invention achieves display smoothness by precisely controlling the wavelength characteristics of light emitting elements and their arrangement, substituting mechanical precision with optical parameter precision.
Solution Approach 2:
The patent controls the absolute value differences between peak and dominant wavelengths of light emitting elements within specific ranges (5nm to 20nm for first element, 5nm to 15nm for second element). By maintaining these parameter relationships, the module achieves high display smoothness and color accuracy without requiring complex mechanical precision or connection structures.
3Adaptability or versatility
If multiple light emitting elements with different wavelengths are used, then color rendering is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent defines specific wavelength parameters for different light emitting elements: first peak wavelength and dominant wavelength for the first element, second peak wavelength and dominant wavelength for the second element. It controls the absolute value differences between these parameters within specific ranges (5nm to 20nm and 5nm to 15nm respectively), enabling versatile color rendering while maintaining achievable manufacturing precision.
Solution Approach 2:
Different light emitting elements are assigned specific wavelength characteristics suitable for their local function in the display. The first light emitting element with its controlled wavelength parameters serves one color function, while the second light emitting element with different controlled parameters serves another color function, allowing each component to be optimized for its specific local role in achieving overall color rendering versatility.
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 allows for firm and reliable connection of light-emitting modules to the display substrate, enabling smooth display of characters, symbols, images, or videos by optimizing light emission characteristics and semiconductor layer arrangements.
Implementation Method 1
a plurality of light emitting elements disposed on the base substrate to generate light, wherein the plurality of light emitting elements include: a first light emitting element for generating light having a first peak wavelength and a first dominant wavelength; and a second light emitting element for generating light having a second peak wavelength and a second dominant wavelength
Data Source
AI summary
According to one aspect of the present disclosure, there may be provided a light-emitting module, including: a base substrate; and a plurality of light emitting elements disposed on the base substrate to generate light, wherein the plurality of light emitting elements include: a first light emitting element for generating light having a first peak wavelength and a first dominant wavelength; and a second light emitting element for generating light having a second peak wavelength and a second dominant wavelength, and wherein a first absolute value, which is an absolute value of the difference between the first peak wavelength and the first dominant wavelength, is smaller than a second absolute value, which is an absolute value of the difference between the second peak wavelength and the second dominant wavelength.