Transparent Self-Powered Display Layout to Minimize Moiré
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Solution Overview
Problem
Existing cholesteric liquid crystal display (ChLCD) and MicroLED displays combined with photovoltaic power generation devices face issues of moiré pattern formation and reduced power generation efficiency due to stacked configurations, which affect visual quality and power consumption.
Innovation Solution
A composite self-powered transparent display device is designed with a display module and power generation module stacked on a shared transparent substrate, featuring overlapping light-transmitting regions and non-transmitting regions to maximize light penetration and energy conversion, while sharing signal lines to reduce moiré patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If ChLCD and MicroLED displays are combined with photovoltaic power generation devices in a stacked configuration, then power generation efficiency is improved, but moiré patterns are formed on the image screen affecting visual quality
Solution Approach 1:
The patent transitions from a traditional stacked configuration to a side-by-side configuration where the photovoltaic power generation device is positioned adjacent to the display modules rather than layered above or below. This spatial reorganization in a different dimension eliminates the periodic stripe overlap that causes moiré patterns while preserving light transmission for power generation.
Solution Approach 2:
The display device is divided into distinct functional regions: light-transmitting display units for visual output and a photovoltaic power generation unit for energy harvesting. These segmented regions are arranged side-by-side with clear spatial separation, allowing each component to function independently without interfering with the other, thus avoiding moiré pattern formation.
2Loss of energy
If stacked configuration is used to integrate display and power generation modules, then power generation efficiency increases, but device complexity increases due to new panel configuration requirements
Solution Approach 1:
The patent merges the display function and power generation function into a single integrated device structure where both functions coexist in the same panel plane. The light-transmitting display units and photovoltaic units share the same substrate and are positioned side-by-side, eliminating the need for separate stacked layers and reducing overall structural complexity.
3Manufacturing precision
If screen resolution is increased to improve display quality, then the number of light sources increases, but total power consumption increases
Solution Approach 1:
The patent implements self-powered functionality where the photovoltaic power generation unit converts ambient light into electrical energy that directly supplies the display modules. This self-service mechanism allows high-resolution displays with numerous light sources to operate without external power input, as the device generates its own energy from the surrounding environment.
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 enhances power generation efficiency, reduces manufacturing costs, minimizes moiré patterns, and achieves high image quality by optimizing the display and power generation integration, with a transparent design that supports both active and reflective light-emitting functions.
Implementation Method 1
The power generation module converts the light into an electrical energy to provide the electrical energy to at least one of the first light-transmitting display unit and the second light-transmitting display unit
Data Source
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AI summary
A composite self-powered display device (10) includes a display module (100) and a power generation module (200). The display module includes a first transparent substrate (110), a second transparent substrate (120), a first light-transmitting display unit (130) and a second light-transmitting display unit (140) disposed between the first transparent substrate (110) and the second transparent substrate (120), and a non-transparent unit (150) surrounding the first light-transmitting display unit (130) and the second light-transmitting display unit (140). A first light non-transmitting region (132) and a second light non-transmitting region (142) are centrally disposed between the first transparent substrate (110) and the second transparent substrate (120). The power generation module (200) is stacked on the display module (100), and a light penetrates the first transparent substrate (110), at least one of a first light-transmitting region (131) and a second light-transmitting region (141), and the second transparent substrate (120). The power generation module (200) converts the light into electrical energy to provide electrical energy to the first light-transmitting display unit (130) and the second light-transmitting display unit (140).