Segmented Display Panel With Optical Privacy Boundary Control
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Solution Overview
Problem
Existing electronic devices face challenges in seamlessly integrating anti-peeping and sharing modes on the same screen, leading to image distortion at the boundary regions due to differences in viewing angles and oblique light, limiting their applicability in open spaces.
Innovation Solution
The electronic device incorporates a panel with distinct regions and an optical modulation layer, controlled by a unit that applies different voltages to create bright and dark regions, along with an optical modulation layer to adjust brightness viewing angles, allowing simultaneous display of anti-peeping and sharing regions without distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If different modules are used to separate the shared region and the anti-peeping region, then image distortion is avoided, but full-screen switching mode makes it impossible for public information and private information to coexist on the same screen
Solution Approach 1:
The display screen is divided into multiple regions including a first region, a second region, and a third region between them. The optical modulation layer is correspondingly segmented into a first portion, second portion, and third portion. Different voltage control signals are applied to different regions to achieve distinct display functions (shared mode vs. anti-peeping mode) while maintaining coexistence on the same screen.
Solution Approach 2:
Different regions of the display are assigned different functional properties. The first and second regions can be controlled to display shared content with broader viewing angles, while the third region displays anti-peeping content with narrower viewing angles. The optical modulation layer is configured with different portions corresponding to different functional requirements of each region.
2Adaptability or versatility
If a single mode is used for the entire screen, then full-screen functionality is achieved, but image distortion occurs at the boundary regions due to oblique light from shared regions
Solution Approach 1:
The screen is segmented into functional regions with the third region positioned between the first and second regions. The optical modulation layer is correspondingly segmented. By applying different voltage control signals to different regions, the system can switch between shared mode and anti-peeping mode locally, preventing oblique light from causing distortion at boundaries while maintaining full-screen functionality.
Solution Approach 2:
The third region acts as an intermediary buffer zone between the first and second regions. This intermediate region helps transition the optical characteristics smoothly, reducing the abrupt changes in light transmission that cause distortion at the boundaries of shared and anti-peeping regions.
3Object-affected harmful factors
If the optical modulation layer is added to control viewing angles, then anti-peeping functionality is improved, but device complexity increases
Solution Approach 1:
The optical modulation layer is designed to serve multiple functions simultaneously: it provides anti-peeping protection in the third region, enables shared mode display in the first and second regions, and controls viewing angles across all regions. By integrating this single component with voltage control, the system achieves multiple display modes without requiring separate modules for each function.
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 configuration ensures that sensitive information remains hidden from oblique views while shared content is visible, improving image quality at the boundary regions and enabling full-screen functionality in various environments.
Implementation Method 1
an optical modulation layer, and a control unit. The panel emits an emitted light corresponding to the first region and the second region. The optical modulation layer is disposed so that it corresponds to the panel and has a first portion and a second portion that are connected to each other
Implementation Method 2
The control unit inputs a bright region voltage to the first region and the second region, and inputs a dark region voltage to the third region during a plurality of operation periods
Data Source
AI summary
An electronic device is provided. The electronic device includes a substrate, a panel, an optical modulation layer, and a control unit. The panel includes a first region, a second region, and a third region between the first region and the second region. The optical modulation layer is disposed corresponding to the panel. The control unit is electrically connected to the panel. The control unit inputs a bright region voltage to the first region and the second region, and inputs a dark region voltage to the third region during a plurality of operation periods. The bright region voltage differs from the dark region voltage during any of the operation periods.