Pulsed Light Display Synchronization for Outdoor Contrast and Low Power
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Solution Overview
Problem
Existing devices face challenges in providing adequate contrast and energy efficiency when used in bright environments, such as outdoors, due to high ambient light and high energy consumption, which limits battery life and practicality.
Innovation Solution
A system utilizing pulsed light sources synchronized with selective viewing devices, like shutter glasses, to reduce energy consumption and enhance contrast by varying light intensity and transparency, allowing for higher contrast and lower energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the brightness of the screen is increased to improve contrast in bright environments, then the contrast is improved, but the energy consumption increases
Solution Approach 1:
The emission device emits light in pulsed intervals rather than continuously. The light is emitted at high intensity for short durations followed by dark periods, creating a periodic on-off pattern. This allows the screen to achieve high brightness when needed while consuming less energy overall, as the light-emitting components are active only during the pulsed intervals.
Solution Approach 2:
The system dynamically adjusts the transparency of the selective viewing device in synchronization with the pulsed light emission. The viewing device transitions between transparent and opaque states dynamically, allowing light to pass through only during the emission pulses. This dynamic control enables high contrast perception without requiring continuous high brightness, thereby reducing energy consumption.
2Illumination intensity
If continuous light emission is used to maintain visibility, then the visibility is maintained, but the energy consumption is high
Solution Approach 1:
The system replaces continuous light emission with periodic pulsed emission. The emission device operates in cycles, emitting light at high intensity for brief intervals and remaining dark between pulses. This periodic operation maintains visibility during emission phases while dramatically reducing average energy consumption compared to continuous emission at the same peak intensity.
3Use of energy by moving object
If pulsed light emission is used to reduce energy consumption, then energy consumption is reduced, but the visibility may be affected
Solution Approach 1:
The selective viewing device dynamically synchronizes its transparency transitions with the pulsed light emission from the emission device. The viewing device becomes transparent precisely when light is emitted and opaque during dark intervals. This dynamic synchronization ensures that the user's eye receives light only during emission pulses, maintaining clear visibility of the displayed information while benefiting from the reduced average energy consumption of pulsed operation.
Solution Approach 2:
The system employs synchronized control where the transparency state of the selective viewing device is coordinated with the emission state of the light source. This feedback mechanism ensures that the viewing device's optical properties match the light emission timing, guaranteeing that visibility is maintained during emission phases while enabling energy savings during dark phases.
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 devices to be powered by smaller solar panels and extending battery life, allowing for effective use in bright environments without increasing energy costs.
Implementation Method 1
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 2
The panel has a variable transparency which can be varied between a state of high transparency and a state of low transparency
Implementation Method 3
The system further comprises a photoelectric conversion means which is arranged to convert ambient light into electric energy
Data Source
AI summary
The invention relates to a system for displaying information, 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 system further comprising a photoelectric conversion means arranged to convert ambient light into electric energy so as to feed the electric energy into the system.