Electronic Ink Grating for 2D to 3D Display Mode Switching
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Solution Overview
Problem
Traditional display mode switching technologies for 2D and 3D displays require continuous electric signals to maintain the display mode, leading to high power consumption, which is not environmentally friendly.
Innovation Solution
A grating structure with non-transparent electronic ink and a controlling module that moves the ink to specific regions within the grating units to form light-transmitting channels or blocking layers, allowing for display mode switching with minimal power consumption by applying electric signals only during mode changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous electric signal is applied to maintain display mode, then display mode stability is improved, but power consumption increases
Solution Approach 1:
The patent applies periodic electric signals (pulsed driving mode) instead of continuous signals. The controlling module sends electric signals only during mode switching moments, and the electronic ink maintains the grating structure without continuous power supply. This periodic action reduces power consumption while maintaining display mode stability through the memory effect of electronic ink.
Solution Approach 2:
The electronic ink particles possess self-maintaining capability through their memory effect. Once the electronic ink particles are driven to form a grating structure by an electric signal, they maintain this structure automatically without requiring continuous external energy input. The system uses the inherent properties of electronic ink to sustain the display mode independently after initial signaling.
2Adaptability or versatility
If liquid crystal grating is used for mode switching, then display mode switching capability is improved, but power consumption increases
Solution Approach 1:
The patent replaces the traditional liquid crystal optical switching mechanism with an electronic ink-based physical grating structure. Instead of relying on liquid crystal's continuous optical property modulation which requires sustained power, the system uses electronic ink particles that physically form gratings through electrophoresis. This mechanical/physical restructuring approach allows mode switching with brief electric signals rather than continuous power supply.
3Ease of operation
If traditional display mode switching technology is used, then display functionality is maintained, but environmental friendliness deteriorates
Solution Approach 1:
By implementing periodic pulsed driving instead of continuous operation, the system dramatically reduces energy consumption and associated environmental impact. The electronic ink-based grating structure only requires brief electric signals for mode switching, eliminating the need for continuous power supply that characterizes traditional liquid crystal displays. This reduces both energy waste and environmental footprint while maintaining full display functionality.
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 reduces power consumption by allowing the display device to maintain display modes without continuous electric signal application, improving light utilization through reflective hemispherical bodies and enabling efficient switching between 2D and 3D modes.
Implementation Method 1
Each grating unit includes a non-transparent electronic ink received in the accommodation chamber... When an electric signal is applied by the controlling module, the electronic ink moves to a corresponding region in the accommodation chamber
Implementation Method 2
The electronic ink includes a first hemispherical body which is non-transparent and exhibits the first electric polarity, and a second hemispherical body which is reflective and exhibits the second electric polarity opposite to the first electric polarity... the second hemispherical body faces the light-entering surface
Data Source
AI summary
The present disclosure provides a grating structure, a display device and a display mode switching method. The grating structure includes a light-entering surface, a light-exiting surface, and a plurality of grating units arranged continuously between the light-entering surface and the light-exiting surface. Each grating unit includes: an accommodation chamber; a non-transparent electronic ink received in the accommodation chamber and having a predetermined electric polarity; and a controlling module arranged at a periphery of the accommodation chamber and configured to control a region of the electronic ink in the accommodation chamber. When an electric signal is applied by the controlling module, the electronic ink moves to a corresponding region in the accommodation chamber, and after the electric signal is cancelled by the controlling module, the electronic ink is maintained at the current region. The grating structure supports the switching between 2D and 3D display modes and reduces the power consumption.