Electronic Ink 3D Glasses Circuit Simplification
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Solution Overview
Problem
The complexity of circuit design in 3D glasses due to liquid crystal deflection and the light absorption issue caused by indium tin oxide (ITO) electrodes, which reduces light transmissivity and increases material usage.
Innovation Solution
Replacing the liquid crystal layer with electronic ink filled with opaque charged particles, where the polarity of the electrodes controls the movement of microcapsules to achieve 3D display effects, eliminating the need for liquid crystal deflection and simplifying the circuit structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid crystal box structure is used to control deflection, then 3D display function is achieved, but circuit design becomes complex
Solution Approach 1:
The patent extracts and removes the liquid crystal layer and its associated deflection control circuits from the display device. Instead, it uses a simple electrophoretic display structure with transparent electrodes that directly control particle movement without complex liquid crystal deflection mechanisms, thereby achieving 3D display function while simplifying circuit design
Solution Approach 2:
The patent replaces the mechanical/physical deflection control of liquid crystal molecules with an electric field-based electrophoretic system. Transparent electrodes apply electric fields to move charged particles directly, substituting the complex liquid crystal deflection mechanism with a simpler electrostatic particle migration system
2Reliability
If ITO transparent electrode layer is coated on entire substrate, then electrode function is achieved, but light transmissive rate is reduced
Solution Approach 1:
The patent applies transparent electrodes only in specific local areas where electrical control is needed, rather than coating the entire substrate. This localized electrode placement maintains electrode functionality while minimizing light absorption and maximizing light transmissivity in the remaining areas
3Reliability
If ITO is coated on entire substrate, then electrode coverage is achieved, but material usage efficiency is low
Solution Approach 1:
The patent uses transparent electrodes only in specific localized regions where electrical control is required, rather than coating the entire substrate. This selective placement achieves necessary electrode coverage while significantly reducing the amount of ITO material consumed
Solution Approach 2:
The patent divides the substrate into functional regions, with transparent electrodes placed only in specific segments where control is needed. This segmentation allows the electrode function to be achieved with minimal material usage, avoiding wasteful full-substrate coating
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
This solution simplifies the circuit design and production process while maintaining effective 3D display capabilities by controlling the polarity of electrodes to move microcapsules, enhancing light transmissivity and reducing material usage.
Implementation Method 1
the opaque charged particles are uniformly distributed at an electrode side formed on the at least two opposite side walls of the box cavity when the transparent electrode formed on the first substrate is not applied with a voltage
Data Source
Figure 1~2
AI summary
The present invention discloses a 3D conversion lens and a control method thereof. The 3D conversion lens comprises: a first substrate and a second substrate, the first substrate and the second substrate forming a box; electronic ink, the electronic ink filling in the box cavity of the box, and the electronic ink comprising opaque charged particles, the opaque charged particles comprising opaque pigment; an electrode formed on the first substrate; and an electrode formed on at least one side wall of the box cavity. The present invention replaces the conventional liquid crystal layer with electronic ink, thus realizing 3D display effect of the glasses by controlling positive and negative polarity of the transparent electrodes on the substrate and the side wall of the box cavity. Compared with the prior art, it is unnecessary to control and realize deflection of the liquid crystals, which can simplify the circuit structure, and simplify the preparation process of the 3D glasses.