Electronic Device with Low-Contrast Switchable Lens Patterns
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Solution Overview
Problem
Existing electronic devices with decorative patterns on the lens cause visual discomfort due to the patterns affecting the viewing scenery, leading to user discomfort.
Innovation Solution
An electronic device with a switching unit comprising a panel, phase retardation plate, and polarizer, where pixels can switch between pattern and transmission modes with a transmittance difference of less than 15%, using vertical alignment liquid crystal, electrically controlled birefringence liquid crystal, or cholesteric liquid crystal to minimize the visibility of patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If decorative patterns are displayed on the lens, then aesthetic appearance is improved, but visual discomfort increases due to pattern visibility affecting viewing scenery
Solution Approach 1:
The patent changes the transmittance parameter of the lens by controlling liquid crystal molecules to switch between pattern mode (first transmittance) and transmission mode (second transmittance), where the difference is less than 15%. This parameter control makes patterns less noticeable while maintaining aesthetic appearance.
Solution Approach 2:
The patent applies different properties to different regions of the lens by controlling individual pixels to be in pattern mode or transmission mode, creating localized variations in transmittance that form decorative patterns while keeping overall transmittance uniform to minimize visual discomfort.
2Object-affected harmful factors
If patterns are made less noticeable to reduce visual discomfort, then viewing comfort is improved, but pattern display quality may deteriorate
Solution Approach 1:
The patent optimizes the transmittance difference parameter to be less than 15% between pattern mode and transmission mode, which balances the visibility of patterns with viewing comfort. This specific parameter range maintains sufficient pattern contrast while preventing visual discomfort.
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 visual discomfort by making patterns less noticeable, allowing users to view external scenery without being affected by the displayed patterns, while maintaining high contrast ratios and enabling color patterns.
Implementation Method 1
electrically controlled birefringence liquid crystal
Implementation Method 2
a polarizer, wherein the phase retardation plate is disposed between the panel and the polarizer
Implementation Method 3
panel with vertical alignment liquid crystal, electrically controlled birefringence liquid crystal, or cholesteric liquid crystal
Implementation Method 4
panel with vertical alignment liquid crystal, electrically controlled birefringence liquid crystal, or cholesteric liquid crystal
Data Source
AI summary
Disclosed is an electronic device including a switching unit. The switching unit includes a plurality of pixels, a panel, a phase retardation plate, and a polarizer, wherein the phase retardation plate is disposed between the panel and the polarizer. Each of the pixels has a pattern mode and a transmission mode, wherein at least a part of the pixels in the pattern mode has a first transmittance, and at least another part of the pixels in the transmission mode has a second transmittance, and a difference between the first transmittance and the second transmittance is less than 15%.