Adjustable Anti-Peeping Display with Interlaced Electrodes

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Solution Overview

Problem

Display apparatuses have fixed anti-peeping directions, which do not adapt to varying user needs based on different occasions or manners of use, limiting flexibility in privacy protection.

Innovation Solution

A display apparatus with a switching panel that includes interlaced electrodes and a liquid crystal layer, allowing for adjustable anti-peeping modes by controlling potential differences between electrodes to change the orientation of liquid crystal molecules and thus the anti-peeping direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed anti-peeping direction is set in the display apparatus, then privacy protection is provided in a specific direction, but the apparatus cannot adapt to varying user needs based on different occasions or manners of use

Engineering Contradiction:
Improveadaptability to varying user needsVSAvoidstructure of anti-peeping mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by enabling the anti-peeping direction to be dynamically adjustable through a switching panel with multiple electrodes. The liquid crystal molecules can be reoriented by applying different voltage patterns to the electrodes, allowing the anti-peeping direction to change from fixed to adjustable. This resolves the contradiction by making the system adaptable to different user needs while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes parameter changes by modifying the electrical parameters (voltage applied to different electrodes) to change the orientation of liquid crystal molecules. By controlling the potential differences between various electrode pairs, the anti-peeping direction can be adjusted to different angles. This approach allows adaptability without requiring complex mechanical structures, as the change is achieved through electrical parameter modulation.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple electrodes with interlaced arrangements are used to enable adjustable anti-peeping modes, then adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improveswitching between anti-peeping modesVSAvoidelectrode structure and control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the electrode system into multiple independent electrodes (first, second, third, and fourth electrodes) with interlaced arrangements. Each electrode can be controlled independently to create different potential difference patterns. This segmentation enables multiple anti-peeping modes while keeping each individual electrode relatively simple in structure, resolving the contradiction between adaptability and complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The switching panel with interlaced electrodes serves multiple functions: it can create different potential difference patterns to achieve various anti-peeping directions, and it can also be controlled to provide different viewing modes. This multi-functionality allows a single structure to handle multiple anti-peeping modes without requiring separate mechanisms for each mode, thereby improving adaptability while controlling overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 dynamic adjustment of the anti-peeping direction based on user requirements, enhancing privacy protection by allowing the display apparatus to switch between different anti-peeping modes as needed.

Implementation Method 1

a liquid crystal layer. The first electrode and the second electrode are disposed on the first base. The first electrode has branches, and the branches of the first electrode are arranged in a first direction

Methodology Applied
Scientific EffectLiquid crystal orientation control: Liquid Crystals

Implementation Method 2

when the display apparatus is under a first anti-peeping mode, a potential difference between the first electrode and the second electrode is greater than a potential difference between the third electrode and the second electrode

Methodology Applied
Scientific EffectElectric field effect on liquid crystal: Electric Field

Data Source

PatentUS11402702B2Display apparatus
Publication Date: 2022.08.02 AU OPTRONICS CORP
  • US11402702B2 patent drawing
  • US11402702B2 patent drawing
  • US11402702B2 patent drawing

AI summary

A display apparatus includes a display panel and a switching panel disposed outside the display panel. The switching panel includes a first base, a first electrode, a second electrode, a second base, a third electrode, a fourth electrode and a liquid crystal layer. The first electrode and the second electrode are disposed on the first base. The first electrode has branches, and the branches of the first electrode are arranged in a first direction. The second base is disposed opposite to the first base. The third electrode and the fourth electrode are disposed on the second base. The third electrode has branches, and the branches of the third electrode are arranged in a second direction, and the first direction is interlaced with the second direction. The liquid crystal layer is disposed between the first base and the second base.