Micro Optical Switching Device for Display Efficiency
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Solution Overview
Problem
Conventional flat panel display apparatuses face challenges in achieving high optical efficiency, especially as pixel size decreases, leading to increased power consumption and reduced optical efficiency, necessitating the development of a micro optical switching device that can improve optical efficiency with a simple process and be resilient to deformation of adjacent elements.
Innovation Solution
A micro optical switching device comprising a substrate with a first electrode and a second electrode separated by a support member, where the second electrode can move towards or away from the first electrode upon voltage application, utilizing a core and shell structure formed from different materials, and an insulation layer to prevent electrical connection, enhancing optical efficiency and resistance to deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the size of a pixel decreases to increase display resolution, then the display detail improves, but optical efficiency sharply decreases
Solution Approach 1:
The pixel structure is segmented into multiple functional layers including a first electrode with first opening array, a second electrode with second opening array, and a support member with core and shell portions. This segmentation allows each component to be optimized independently for light transmission while maintaining overall pixel integrity at reduced sizes
Solution Approach 2:
The support member is constructed using composite materials with different properties - the core portion provides structural support while the shell portion (formed of same material as second electrode) provides both support and light blocking functionality. This composite approach maximizes optical efficiency within the constrained pixel area
2Ease of manufacture
If a simple manufacturing process is used to reduce production complexity, then manufacturing cost decreases, but device reliability and resistance to deformation worsen
Solution Approach 1:
The support member is pre-formed with the integrated core-shell structure before assembly into the pixel. This preliminary formation ensures proper structural support and spacing between electrodes is established early in the manufacturing process, preventing deformation issues that would require complex post-processing corrections
Solution Approach 2:
The core portion is nested within the shell portion to form the support member structure. This nested configuration provides robust mechanical support while maintaining a compact form factor suitable for simple integration into the pixel assembly process
3Loss of energy
If the second electrode is positioned close to the first electrode to improve optical efficiency, then light transmission control improves, but susceptibility to deformation from adjacent elements increases
Solution Approach 1:
The support member acts as an intermediary structure between the first and second electrodes. It provides the necessary spacing and mechanical support to protect the second electrode from deformation caused by adjacent elements, while still allowing the electrodes to be positioned close enough for effective optical control
4Stability of the object's composition
If voltage is continuously applied to maintain electrode position for stable light control, then optical performance stability improves, but power consumption increases
Solution Approach 1:
The micro optical switching device operates by applying voltage periodically - applying voltage to move the second electrode to the ON position for light transmission, then discontinuing voltage to allow the support member to return the electrode to the OFF position. This periodic operation achieves stable light control while minimizing continuous power consumption
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 micro optical switching device effectively controls light transmission and blocking, reducing power consumption and improving optical efficiency while maintaining stability against deformation, enabling efficient operation in display panels.
Implementation Method 1
the second electrode may move towards or away from the first electrode upon application of a voltage
Data Source
AI summary
A micro optical switching device is provided, including a substrate, a first electrode disposed on a first surface of the substrate and including a first opening array including having a first plurality of openings, a second electrode disposed over the first electrode and including a second opening array including a plurality of second openings which do not overlap with the plurality of first openings, and a support member disposed on the substrate. The support member has a thickness greater than a distance from the first surface of the substrate to the second electrode and protrudes above the second electrode.