MEMS Pixel Orientation Control for Private Multi-View Displays
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Solution Overview
Problem
Existing displays in shared viewing environments struggle to provide personalized and private content to multiple users while maintaining versatility and avoiding physical barriers that reduce brightness and resolution, leading to increased costs and resource consumption.
Innovation Solution
A MEMS-based display system with control circuitry that adjusts the orientation of pixels using micro-electromechanical system (MEMS) actuators to control viewing angles, allowing a single display to show different content to multiple users privately and adapt to changing positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple displays are used to provide personalized content to multiple users in a shared viewing environment, then each user can view unique content privately, but the cost and resource consumption increase
Solution Approach 1:
The display is divided into multiple independently controllable regions or pixels, where each pixel can be individually oriented using MEMS actuators. This segmentation allows different portions of the display to show different content to different users simultaneously, enabling personalized content delivery from a single display device.
Solution Approach 2:
The display employs dynamically adjustable pixel orientations through MEMS actuators, allowing the display to adapt its viewing angles in real-time based on user positions. This dynamic capability enables a single display to serve multiple users with personalized content without requiring multiple static displays.
2Adaptability or versatility
If privacy screens or films are added to displays to limit viewing angles, then content privacy is improved, but the brightness of the image is reduced
Solution Approach 1:
The patent replaces static mechanical privacy screens with MEMS-based micro-electromechanical actuators that dynamically control pixel orientations. This substitution eliminates the need for physical privacy filter layers that block light, achieving viewing angle control through precise mechanical positioning of pixels rather than through light-blocking materials.
3Adaptability or versatility
If parallax barriers are integrated onto the display screen to show unique content to different viewing angles, then a single display can serve multiple users, but the brightness and resolution are reduced
Solution Approach 1:
The patent extracts the viewing angle control function from the optical path (removing parallax barriers from the light path) and implements it through independent pixel orientation control. By taking out the barrier layer that blocks and redirects light, the system achieves multi-user content display without the brightness and resolution penalties associated with physical barriers in the optical path.
4Adaptability or versatility
If physical barriers are placed on top of the display screen to provide privacy protection, then content visibility is limited to specific angles, but the structure becomes cumbersome and inflexible
Solution Approach 1:
The patent implements dynamic privacy protection through controllable pixel orientations rather than static physical barriers. The MEMS actuators enable real-time adjustment of viewing angles, allowing the display to adapt to changing user positions and privacy requirements, thereby eliminating the cumbersome and inflexible nature of fixed barrier structures.
5Stability of the object's composition
If parallax barriers are permanently integrated onto the screen, then the structure is stable, but the display cannot function in both normal and specialized modes
Solution Approach 1:
The patent employs dynamically controllable pixel orientations through MEMS actuators, allowing the display to switch between normal viewing mode and specialized privacy mode as needed. This dynamic capability provides both structural stability (through controlled positioning) and mode flexibility, enabling the display to adapt to different usage scenarios without permanent integration constraints.
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
Enables personalized and private viewing experiences for multiple users by directing content to specific angles, enhancing versatility and reducing the need for multiple displays, while maintaining brightness and resolution.
Implementation Method 1
a plurality of micro-electromechanical system (MEMS) actuators. The control circuitry may be configured to cause each respective MEMS actuator of the plurality of MEMS actuators to control an orientation of a respective pixel
Data Source
AI summary
Systems, methods, and apparatuses describe a display and control circuitry configured to modify the display. The display comprises a plurality of pixels corresponding to a plurality of subsets of the display and a plurality of MEMS actuators configured to modify the orientations of the pixels. The control circuitry may be configured to cause each respective MEMS actuator to control an orientation of a respective pixel of the plurality of pixels by causing a subset of the plurality of MEMS actuators to modify orientations of a corresponding first subset of the plurality of pixels associated with a first viewing position in an environment of the display. The control circuitry may be further configured to cause the first subset of the plurality of pixels having the modified orientations to display particular content directed to the first viewing position, wherein the particular content is obscured from a second viewing position of the environment.