Display System with Violet Light Emission for Circadian Regulation
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Solution Overview
Problem
The modern lifestyle, dominated by LED lighting and display devices, exposes individuals to specific wavelengths of light that can adversely affect the body and mind, leading to issues such as myopia progression and disruption of the circadian rhythm, without sufficient exposure to beneficial wavelengths like 360 nm to 400 nm and 460 nm ± 20 nm.
Innovation Solution
A display system incorporating a first light-emitting element for image display and a second light-emitting element that irradiates specific wavelengths of 360 nm to 400 nm and 460 nm ± 20 nm, controlled by a unit to adjust irradiation based on environmental and user-specific conditions, including detection of eye position and line-of-sight, to mitigate adverse effects and promote beneficial effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED lighting and display devices are used for modern living, then energy efficiency and image display quality are improved, but exposure to harmful light wavelengths adversely affects the body and mind
Solution Approach 1:
The patent converts harmful blue light (460nm±20nm) into beneficial violet light (360nm-400nm) by using a phosphor conversion mechanism. The LED emits blue light that excites the phosphor layer, which then emits violet light with wavelengths proven to suppress myopia progression and regulate circadian rhythm, effectively transforming a harmful wavelength into a therapeutic one.
Solution Approach 2:
The patent changes the spectral parameters of the light emitted by modifying the phosphor composition and excitation wavelength. By selecting specific phosphor materials with appropriate emission characteristics and matching them with LED excitation sources, the system transforms the spectral distribution from harmful blue-rich light to beneficial violet-rich light while maintaining energy efficiency.
2Ease of operation
If conventional display light is used, then image display function is provided, but beneficial wavelengths (360 nm to 400 nm and 460 nm ± 20 nm) are insufficient for health benefits
Solution Approach 1:
The patent makes the display device serve multiple functions simultaneously: it provides image display through the conventional display panel while also emitting therapeutic violet light through the integrated LED-phosphor system. This multi-functionality allows the device to maintain its primary display purpose while adding health benefits without requiring separate equipment.
Solution Approach 2:
The patent merges the display light source and the therapeutic light source into a single integrated system. The LED array is positioned to work in conjunction with the display panel, combining image display functionality with violet light emission in one unified device structure, thereby delivering both visual and health benefits simultaneously.
3Reliability
If ultraviolet light transmission is blocked to prevent eye damage, then eye protection from UV damage is improved, but exposure to beneficial violet light is reduced
Solution Approach 1:
The patent applies selective wavelength emission by having the LED-phosphor system emit specifically in the 360nm-400nm violet range, which is distinct from the harmful ultraviolet range (below 315nm). This localized spectral quality ensures that only beneficial wavelengths are emitted while harmful UV wavelengths are excluded, providing targeted eye protection without compromising therapeutic benefits.
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 system effectively suppresses myopia progression and regulates the circadian rhythm by irradiating specific wavelengths, addressing the deficiencies in modern light exposure and minimizing adverse effects on the eyes and body.
Implementation Method 1
light emitted from light-emitting diode (LED) lighting, a liquid crystal display that uses an LED for a backlight
Data Source
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AI summary
To provide a display system such as a smartphone, a game console, a personal computer, or a liquid crystal television, including a light-emitting element that irradiates light having a specific wavelength toward a user. The above-described problem is solved by a display system (1) including a first light-emitting element (6) that emits light used for image display, a second light-emitting element (3) that irradiates light (7) within a wavelength range of 360 nm to 400 nm, inclusive, toward a user, and a control unit (10) that controls irradiation of the light (7) from the second light-emitting element (3).At this time, the second light-emitting element (3) may be a single light-emitting element integrated with the first light-emitting element (6) or a light-emitting element provided separately from the first light-emitting element (6).When separately provided from the first light-emitting element (6), the second light-emitting element (3) is preferably provided to a peripheral frame (4) of a display screen (2), in the display screen (2), or as an accessory (5).