Display Panel Viewing-Angle Zoning for Privacy and Sharing
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Solution Overview
Problem
Existing electronic devices face challenges in seamlessly integrating anti-peeping and sharing regions on a single screen, leading to image distortion at the boundary due to differences in viewing angles, which limits their application in open spaces.
Innovation Solution
The electronic device is configured with a panel comprising first and second regions for sharing and anti-peeping, respectively, and a third region between them, utilizing an optical modulation layer and a control unit to input different voltages, creating regions with varying brightness viewing angles to maintain privacy and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate modules are used to separate shared region and anti-peeping region, then image distortion is avoided, but full-screen switching mode prevents public and private information from coexisting on the same screen
Solution Approach 1:
The display screen is divided into multiple independent regions including a first region for shared content, a second region for anti-peeping content, and a third region as a transition zone. Each region can be independently controlled to display different content types, allowing both public and private information to coexist on the same screen without causing image distortion at boundaries.
Solution Approach 2:
Different regions of the display screen are assigned different functional properties: the first region optimizes for shared visibility, the second region optimizes for privacy protection, and the third region provides a smooth transition. This local differentiation allows each area to have optimized characteristics for its specific purpose while maintaining overall system functionality.
2Adaptability or versatility
If a single panel is used for both shared and anti-peeping regions, then screen integration is improved, but image distortion occurs at the boundary due to viewing angle differences
Solution Approach 1:
The single panel is segmented into functionally distinct regions with independent control capabilities. The third region acts as a buffer zone between the first and second regions, creating a gradual transition that eliminates abrupt boundary effects and reduces image distortion when viewing from oblique angles.
Solution Approach 2:
The display system dynamically adjusts the content and characteristics of different regions based on viewing conditions and operational requirements. The control unit can independently manage each region's display parameters, enabling adaptive response to different viewing angles and content types to minimize distortion.
3Ease of operation
If different voltage levels are applied to different regions, then viewing angle control is improved, but device complexity increases
Solution Approach 1:
The control system is segmented into independent control units for each region, allowing different voltage levels to be applied to different regions without requiring a completely separate control system. This modular approach manages complexity while enabling precise viewing angle control through voltage-dependent optical modulation.
Solution Approach 2:
The system utilizes voltage as a control parameter to modulate the optical properties of different regions. By applying different voltage levels to different regions, the system changes the viewing angle characteristics and brightness distribution to achieve desired display effects while maintaining a relatively simple control architecture.
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 allows for simultaneous display of anti-peeping and shared content on the same screen, improving image quality at oblique viewing angles by ensuring protected content remains hidden while shared content is visible.
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
Data Source
AI summary
An electronic device is provided, including a first region, a second region, and a third region between the first and second regions; an upper substrate corresponding to the first, second, and third regions; a first light-emitting element corresponding to the first region; and a second light-emitting element corresponding to the second region. A first brightness viewing angle of the electronic device corresponds to the first region, a second brightness viewing angle of the electronic device corresponds to the second region, and the first brightness viewing angle is smaller than the second brightness viewing angle. Each of the first brightness viewing angle and the second brightness viewing angle is defined as an angle corresponding to when an intensity in an intensity-angle distribution is about 50% of a peak intensity. A grayscale value of the third region is lower than grayscale values of the first region and the second region.