Polymer Liquid Crystal Light-Adjusting Plate for Regional Anti-Peeping
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Solution Overview
Problem
Conventional display devices face incompatibility between partial anti-peeping and integral display functions, particularly in large screens, leading to visible boundaries and compromised user experience.
Innovation Solution
A light-emitting module with a first light-adjusting plate containing a polymer liquid crystal layer and electrode layers, allowing independent control of anti-peeping and sharing states in different regions through voltage regulation, integrated with a light-intensifying plate and anti-peeping film for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If full-screen anti-peeping processing is performed on the display panel, then anti-peeping function is achieved, but flexibility and user experience are reduced due to inability to separately control different regions
Solution Approach 1:
The display screen is divided into multiple independent control regions (first region and second region) with separate electrode layers and control circuits. Each region can independently adjust its light transmittance and anti-peeping properties through dedicated driving circuits, enabling flexible regional control while maintaining overall display functionality.
Solution Approach 2:
The anti-peeping film and light-adjusting plate use liquid crystal materials that can dynamically change their optical properties (transmittance and anti-peeping angle) in real-time based on applied voltage. This dynamic adjustment capability allows the display to adapt different regions to different usage scenarios, enhancing both anti-peeping performance and user flexibility.
2Adaptability or versatility
If multiple individual screens are adhered on the same cover plate to achieve partial anti-peep, then anti-peeping control is improved, but visible boundaries occur between screens affecting viewing experience
Solution Approach 1:
Multiple control regions are merged into a single integrated display panel structure with continuous front surface. The electrode layers, liquid crystal layers, and anti-peeping films are seamlessly combined across region boundaries, eliminating physical gaps and visible seams while maintaining independent control capability for each region.
Solution Approach 2:
Different regions of the display panel are equipped with locally optimized optical properties and control characteristics. Each region can have customized anti-peeping angles, transmittance levels, and response characteristics tailored to specific usage requirements, while maintaining visual continuity across the entire panel.
3Adaptability or versatility
If regional control is implemented for anti-peeping, then flexibility is improved, but device complexity increases due to multiple electrode layers and control circuits
Solution Approach 1:
The liquid crystal layer serves multiple functions simultaneously: it acts as the light-adjusting medium for anti-peeping control, the display medium for image presentation, and the dynamic optical modulator for regional differentiation. This multi-functionality reduces the need for separate components for each control region, simplifying the overall structure despite enhanced functionality.
Solution Approach 2:
The patent employs a nested layer structure where electrode layers, liquid crystal layers, and anti-peeping films are stacked in sequence. Each functional layer is embedded within the overall panel structure, with control circuits integrated at the backend. This nested arrangement consolidates multiple functions into a compact integrated structure, managing complexity through hierarchical organization.
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 seamless integration of partial anti-peeping and integral display, reducing power consumption and improving user experience by eliminating visible boundaries and enhancing control accuracy.
Implementation Method 1
a first polymer liquid crystal layer including polymer networks and liquid crystal molecules dispersed in the polymer networks
Implementation Method 2
the first electrode layer includes at least two first electrodes spaced apart... allowing independent control of anti-peeping and sharing states in different regions through voltage regulation
Implementation Method 3
an anti-peeping film provided between the light-emitting plate and the first light-adjusting plate
Implementation Method 4
an anti-peeping angle of the anti-peeping film is from 40 degrees to 60 degrees
Implementation Method 5
a light-intensifying plate provided between the light-emitting plate and the first light-adjusting plate... includes a sidewise light guide plate
Data Source
AI summary
A light-emitting module and a display device are provided. The light-emitting module includes a light-emitting plate and a first light-adjusting plate, and the first light-adjusting plate is located on a light-exiting side of the light-emitting plate. The first light-adjusting plate includes: a first polymer liquid crystal layer including polymer networks and liquid crystal molecules dispersed in the polymer networks; and a first electrode layer and a second electrode layer disposed oppositely on two sides of the first polymer liquid crystal layer. The first electrode layer includes at least two first electrodes spaced apart.