Micro-Lens Optical Switching for Wide-View Privacy Displays
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Solution Overview
Problem
Electronic devices with display functions face challenges in balancing wide viewing angles for general usage with privacy protection needs, particularly in switching between modes for different usage conditions.
Innovation Solution
An electronic device incorporating a substrate with light emitting elements, an optical switching unit, and micro lenses, where the optical switching unit can switch between transparent and haze states to control light beam divergence, enabling a share mode for wide viewing and a privacy mode for restricted visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display is designed for wide viewing angle, then the viewing angle is improved, but privacy protection is worsened
Solution Approach 1:
The optical switching unit dynamically changes its optical state between transparent and haze modes based on usage conditions. When switched to transparent state, light passes through micro lenses to achieve wide viewing angle; when switched to haze state, light scattering provides privacy protection. This dynamic adaptability resolves the contradiction between wide viewing angle and privacy protection.
Solution Approach 2:
The optical switching unit changes the optical parameters of the display system by transitioning between transparent and haze states. This parameter change controls the degree of light scattering, enabling the display to switch between wide viewing angle mode and privacy protection mode, thus resolving the technical contradiction.
2Adaptability or versatility
If the optical switching unit is added to switch between modes, then adaptability is improved, but device complexity is worsened
Solution Approach 1:
The optical switching unit serves multiple functions: it acts as a switch between transparent and haze states, controls light transmission, and enables both wide viewing angle and privacy protection modes. This multi-functionality improves adaptability while minimizing the addition of separate components, thus managing device complexity.
Solution Approach 2:
The optical switching unit is integrated within the existing display structure, positioned between the light emitting elements and the micro lenses. This nested integration allows mode switching functionality to be incorporated without significantly increasing overall device complexity, as the switching unit operates within the existing optical path.
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 device effectively switches between modes to provide a wide viewing angle in share mode and privacy protection in privacy mode, enhancing user experience and security.
Implementation Method 1
The optical switching unit may be switched between a transparent state and a haze state
Implementation Method 2
A plurality of micro lenses 13 may be disposed on the light emitting elements 11
Data Source
AI summary
An electronic device, including a substrate, multiple light emitting elements, an optical switching unit, and multiple micro lenses, is provided. The light emitting elements are disposed on the substrate. The optical switching unit is disposed on the light emitting elements. The micro lenses are disposed on the light emitting elements and overlap with the optical switching unit. At least one of the light emitting elements is disposed corresponding to one of the micro lenses.