Micro LED 3D Display with Parallax Barrier

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Solution Overview

Problem

Current three-dimensional display technologies face challenges in achieving lightweight, self-luminescent, and high-contrast displays with flexible panels and wide viewing angles, particularly in adapting to viewer orientation and display mode without increasing thickness.

Innovation Solution

A three-dimensional display device incorporating a micro LED display panel with a light control component that generates a parallax barrier using alternately arranged light-shielding and light-transmitting strips, controlled by an electrode structure and voltage variations to create a three-dimensional display mode adaptable to landscape or portrait orientations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by stationary object

If an LCD display panel is used, then the display device can be driven easily with low power consumption, but the thickness increases due to the required external backlight source

Engineering Contradiction:
Improvepower consumptionVSAvoidthickness
Core Design Contradiction:
Use of energy by stationary objectVSLength of stationary object

Solution Approach 1:

The patent extracts and removes the backlight source from the display structure by using self-luminescent micro LED elements that generate their own light, eliminating the need for separate backlight components and thereby reducing overall device thickness while maintaining low power consumption characteristics

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If a traditional display panel is used, then the structure is simple, but the display cannot achieve flexible panels with wide viewing angles and high contrast

Engineering Contradiction:
Improveflexibility and viewing angleVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic parallax barrier system with controllable light-shielding strips that can adjust their transparency state in response to viewer orientation detection, enabling the display to adapt between 2D and 3D modes and accommodate different viewing angles and orientations (landscape/portrait modes) through real-time structural adjustment

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent transitions from traditional two-dimensional flat display to three-dimensional stereoscopic display by introducing a parallax barrier with light-shielding strips that create depth perception through selective light blocking, adding a third dimension to the visual output while maintaining the basic panel structure

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If a parallax barrier is added to achieve three-dimensional display, then the three-dimensional effect is achieved, but the device complexity increases

Engineering Contradiction:
Improvethree-dimensional display capabilityVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the parallax barrier light-shielding strips directly with the micro LED display panel structure, integrating the 3D functionality into the existing display architecture rather than adding separate external components, thereby achieving three-dimensional display capability while minimizing additional structural complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent implements automatic orientation detection and adaptive mode switching where the system automatically detects viewer orientation and adjusts the parallax barrier configuration accordingly, eliminating the need for manual intervention or complex control mechanisms while maintaining versatile 3D display functionality

Inventive Principle:
Principle #25Self-service

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 lightweight, high-contrast three-dimensional imaging with flexible panels and wide viewing angles, adjusting display mode based on viewer orientation, while maintaining a compact form factor.

Implementation Method 1

a light control component arranged at a light-emitting side of the micro LED display panel... a light adjusting layer configured to generate the parallax barrier according to voltage variation of the electrode structure

Methodology Applied
Scientific EffectElectro-optic effect: Electro-Optic Effects

Implementation Method 2

a micro LED display panel... the micro LED is also an active light-emitting element

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 3

a material of the light adjusting layer is a liquid crystal material or an electrochromic material

Methodology Applied
Scientific EffectLiquid crystal effect: Liquid Crystals

Implementation Method 4

a material of the light adjusting layer is a liquid crystal material or an electrochromic material

Methodology Applied
Scientific EffectElectrochromism: Electrochromism

Data Source

PatentUS10642054B2Three-dimensional display device
Publication Date: 2020.05.05 BOE TECHNOLOGY GROUP CO LTD
  • US10642054B2 patent drawing
  • US10642054B2 patent drawing
  • US10642054B2 patent drawing

AI summary

There is disclosed a three-dimensional display device including: a micro LED display panel, a light control component arranged at a light-emitting side of the micro LED display panel, and a control component electrically connected with the micro LED display panel and the light control component respectively; where the control component is configured to control the micro LED display panel to display, and to control the light control component to generate a parallax barrier matching with the micro LED display panel, in a three-dimensional display mode. The control component controls the light control component to generate the parallax barrier matching with the micro LED display panel, while controlling the micro LED display panel to display, and when light rays emitted by the micro LED display panel pass through the parallax barrier, a three-dimensional image can be displayed, so that a three-dimensional display can be achieved on the micro LED display panel.