Light-absorbing layer between thyristor and emitter
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Solution Overview
Problem
Existing light-emitting components face challenges in efficiently managing light emission and absorption between light-emitting elements and driving thyristors, leading to undesirable influences on image quality due to mixed emission spectra and increased power consumption.
Innovation Solution
A light-emitting component is designed with a light-emitting element, a driving thyristor, and a light-absorbing layer, where the light-absorbing layer is disposed between the light-emitting element and the driving thyristor to absorb light emitted by the thyristor, reducing unnecessary light and optimizing light emission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the driving thyristor is placed close to the light-emitting element to reduce device size, then the device complexity is reduced, but the thyristor emits light that mixes with the light-emitting element's spectrum and degrades image quality
Solution Approach 1:
A light-absorbing layer is introduced as an intermediary component between the driving thyristor and the light-emitting element. This layer selectively absorbs the light emitted by the thyristor while allowing the light from the light-emitting element to pass through, thereby preventing spectral mixing and maintaining image quality without increasing overall device size
2Object-affected harmful factors
If the light-absorbing layer is added to absorb thyristor light, then image quality is improved, but the device complexity increases
Solution Approach 1:
The light-absorbing layer is integrated into the existing device structure by combining it with either the substrate or the light-emitting element housing. This merging approach allows the light-absorbing function to be added without creating a separate, standalone component, thereby minimizing the increase in device complexity
3Loss of energy
If the light-absorbing layer absorbs light from the driving thyristor, then power consumption is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The light-absorbing layer is pre-positioned and fixed to either the substrate or the light-emitting element housing before final assembly. This preliminary action ensures correct positioning and reduces the need for high-precision alignment during manufacturing, thereby lowering manufacturing precision requirements while still achieving effective light absorption
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 enhances light emission efficiency, reduces power consumption, and improves image quality by minimizing the impact of thyristor light on the photoconductor drum, allowing for better control over light emission and absorption.
Implementation Method 1
the light-absorbing layer is disposed between the light-emitting element and the driving thyristor such that the light-emitting element and the driving thyristor are stacked, and absorbs light emitted by the driving thyristor
Data Source
AI summary
A light-emitting component includes a light-emitting element, a driving thyristor, and a light-absorbing layer. The light-emitting element emits light of a predetermined wavelength. The driving thyristor causes the light-emitting element to emit light or causes an amount of light emitted by the light-emitting element to increase, upon entering an on-state. The light-absorbing layer is disposed between the light-emitting element and the driving thyristor such that the light-emitting element and the driving thyristor are stacked, and absorbs light emitted by the driving thyristor.