Pulsed Light Emission with Variable Transparency Panel
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Solution Overview
Problem
Existing display technologies face challenges in maintaining high contrast and reducing energy consumption, especially in bright environments like outdoors, due to excessive ambient light and inefficient light emission schemes, which lead to poor user experience and increased heat generation.
Innovation Solution
A system that emits light in a pulsed manner with a high-intensity duty cycle of less than 1/10, synchronized with a selective viewing device that has variable transparency, allowing for enhanced contrast and reduced energy consumption by selectively viewing the emitted light while suppressing ambient light, particularly in intense sunlight environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If continuous light emission is used to display information, then the screen is always visible, but energy consumption increases and contrast decreases in bright environments
Solution Approach 1:
The emission device emits light in periodic pulses with a duty cycle of less than 1/10, synchronized with the selective viewing device's transparent states. This periodic emission reduces energy consumption while maintaining visibility during the pulse duration, resolving the contradiction between continuous visibility and energy efficiency.
2Illumination intensity
If high intensity light is emitted continuously to overcome ambient light, then visibility in bright environments improves, but heat generation increases
Solution Approach 1:
By emitting light in short high-intensity pulses rather than continuous emission, the system achieves sufficient visibility during the pulse duration while the low duty cycle (<1/10) allows heat to dissipate between pulses, preventing excessive temperature buildup.
3Illumination intensity
If light emission duration is extended to improve visibility, then contrast in bright environments improves, but energy consumption increases
Solution Approach 1:
The system uses synchronized periodic pulses where the emission device and selective viewing device operate in coordination. The high-contrast display is achieved during the synchronized pulse window, while the low duty cycle minimizes overall energy consumption by keeping the system in a low-power state between pulses.
4Use of energy by moving object
If pulsed light emission with low duty cycle is used, then energy consumption decreases, but visibility may be compromised
Solution Approach 1:
The emission device emits light in periodic pulses synchronized with the selective viewing device's transparent states. Even though the duty cycle is less than 1/10, the intensity during the pulse duration is sufficiently high to ensure visibility, and the synchronization ensures that light is emitted only when the viewing device is transparent, maximizing the effectiveness of each pulse.
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 achieves significantly improved contrast and reduced energy consumption, enabling effective display of information in bright environments without increasing heat generation or device size, while allowing for efficient use of light sources and improved user experience.
Implementation Method 1
an emission device which is arranged to emit light so as to display information to a user
Implementation Method 2
The emission device is adapted to emit the light in a pulsed manner so that the intensity of the light varies between a high value and a low value
Implementation Method 3
The panel has a variable transparency which can be varied between a state of high transparency and a state of low transparency... the selective viewing device... allowing for enhanced contrast and reduced energy consumption by selectively viewing the emitted light while suppressing ambient light
Data Source
AI summary
The invention relates to a system for displaying information to a user, comprising:an emission device arranged to emit light so as to display information to a user, the emission device being adapted to emit the light in a pulsed manner so that the intensity of the light varies between a high value and a low value,a selective viewing device comprising a panel, the panel being adapted so that the user can view the light which is emitted by the emission device through that panel so as to visually perceive the information being displayed, the panel having a variable transparency which can be varied between a state of high transparency and a state of low transparency,the system being adapted to synchronize the emission device and the selective viewing device so that the states of the emission device emitting light at a high-intensity value and the states of the panel of the selective viewing device of high transparency overlap in time,the emission device being adapted so that the light is emitted in a pulsed manner with a duty cycle of less than or equal to 1/10, wherein the panel of the selective viewing device is adapted to operate at essentially the same duty cycle.