Viewing Angle Switchable Panel for Privacy and Sharing Modes
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Solution Overview
Problem
Existing electronic devices with anti-peeping functions face challenges in balancing privacy mode performance with share mode efficiency, often requiring increased power consumption due to narrow light distribution in non-self-luminous types.
Innovation Solution
Incorporating a viewing angle switchable panel with a first substrate, second substrate, first and second electrodes, and a switching medium layer, controlled by electrodes to switch between narrow and wide viewing angles, optimizing power usage and mode flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If backlights with narrow light distribution are used to improve privacy mode, then privacy performance is improved, but power consumption increases and share mode performance deteriorates
Solution Approach 1:
The patent applies a viewing angle switchable panel that can dynamically change its optical properties between different modes. The panel transitions between a first mode (narrow viewing angle for privacy) and a second mode (wide viewing angle for sharing) based on operational requirements, allowing the system to optimize both privacy performance and power consumption by only using narrow light distribution when privacy mode is active
Solution Approach 2:
The viewing angle switchable panel changes its optical parameters (viewing angle, light distribution characteristics) between two distinct states. By controlling the panel's optical parameters rather than permanently fixing them, the system achieves improved privacy performance when needed while avoiding continuous high power consumption, and maintains good share mode performance when privacy is not required
2Object-affected harmful factors
If backlights with narrow light distribution are used to improve privacy mode, then privacy performance is improved, but share mode performance deteriorates
Solution Approach 1:
The viewing angle switchable panel provides dynamic adaptability by switching between narrow and wide viewing angle modes. This allows the electronic device to be optimized for privacy mode when needed while maintaining full performance for share mode when the panel is in its second state, thus resolving the contradiction between privacy performance and share mode performance
Solution Approach 2:
The viewing angle switchable panel serves multiple functions: it enables both privacy mode (narrow viewing angle) and share mode (wide viewing angle) within a single component. This multi-functionality allows the system to achieve improved privacy performance without permanently sacrificing share mode performance, as the panel can switch between its two operational modes
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 enables efficient switching between privacy and sharing modes without significant power increase, enhancing user privacy and visibility as needed.
Implementation Method 1
The viewing angle switchable panel includes a first substrate, a second substrate, a first electrode, a second electrode, a third electrode and a switching medium layer... The viewing angle switchable panel is capable of being controlled by the first electrode, the second electrode and the third electrode to be switched in a first mode or in a second mode
Data Source
AI summary
An electronic device includes a display panel and a viewing angle switchable panel overlapping with the display panel. The viewing angle switchable panel includes a first substrate, a second substrate, a first electrode, a second electrode, a third electrode and a switching medium layer. The second substrate is disposed opposite to the first substrate. The switching medium layer is disposed between the first substrate and the second substrate. The viewing angle switchable panel is capable of being controlled by the first electrode, the second electrode and the third electrode to be switched in a first mode or in a second mode, and the first mode and the second mode are modes with different viewing angles.