Glasses-free 3D Display Panel with Segmented Gating Electrodes

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Solution Overview

Problem

Glasses-free three-dimensional display panels cannot simultaneously display three-dimensional and two-dimensional images, limiting their display functionality.

Innovation Solution

Incorporating a grating panel with a first substrate and a second substrate, each having multiple electrodes, allowing for the application of voltage to specific electrodes to create electrical fields that deflect liquid crystals, enabling the display of both three-dimensional and two-dimensional images by controlling the electrical fields' orientation and application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single gating electrode structure is used in the grating panel, then the manufacturing process is simple, but the display functionality is limited to either 3D or 2D images only

Engineering Contradiction:
Improvedisplay functionalityVSAvoidelectrode structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The single gating electrode is divided into multiple independent gating electrodes (first gating electrode and second gating electrode) that can be independently controlled. This segmentation allows different regions of the grating panel to display different image types (3D or 2D) simultaneously, thereby enhancing display functionality while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electrode structure is designed to be dynamically controllable, where the first and second gating electrodes can be independently activated or deactivated based on the desired display mode. This dynamic control capability enables the system to switch between displaying only 3D images, only 2D images, or both simultaneously in different regions.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple gating electrodes are added to enable simultaneous 3D and 2D display, then the display functionality is enhanced, but the manufacturing complexity increases

Engineering Contradiction:
Improvedisplay functionalityVSAvoidmanufacturing process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The first and second gating electrodes are integrated into a single grating panel structure, sharing common components such as the base substrate, liquid crystal layer, and control circuitry. This merging approach allows multiple gating electrodes to coexist in a unified structure, reducing the overall manufacturing complexity compared to creating separate panels for 3D and 2D display.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The grating panel with multiple gating electrodes is designed to perform multiple functions: it can display 3D images when the first gating electrode is activated, display 2D images when the second gating electrode is activated, and simultaneously display both types of images in different regions when both electrodes are activated. This multi-functionality is achieved within a single manufacturing process.

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

3Adaptability or versatility

If the grating panel blocks part of the two-dimensional image to display 3D images, then three-dimensional display is achieved, but the display area is reduced

Engineering Contradiction:
Improvedisplay modeVSAvoiddisplay area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The display area is segmented into different regions controlled by different gating electrodes. The first gating electrode controls a first region for 3D image display, while the second gating electrode controls a second region for 2D image display. This spatial segmentation allows both 3D and 2D images to be displayed simultaneously in different areas, maximizing the utilization of the total display area without requiring one mode to completely block the other.

Inventive Principle:
Principle #1Segmentation

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 the simultaneous display of three-dimensional and two-dimensional images, enriching the display functionality of glasses-free three-dimensional display panels by applying voltage to specific electrodes, reducing panel thickness through integrated touch functionality.

Implementation Method 1

the liquid crystals between the first gating electrode and the second gating electrodes are deflected under the action of the voltage

Methodology Applied
Scientific EffectLiquid crystal deflection: Liquid Crystals

Implementation Method 2

a voltage is respectively input to the first gating electrode and each of the second gating electrodes, such that the liquid crystals between the first gating electrode and the second gating electrodes are deflected under the action of the voltage

Methodology Applied
Scientific EffectElectrical field effect: Electric Field

Data Source

PatentUS10884261B2Glasses-free three dimensional display panel, manufacturing method thereof, and glasses-free three dimensional display device
Publication Date: 2021.01.05 BOE TECHNOLOGY GROUP CO LTD
  • US10884261B2 patent drawing
  • US10884261B2 patent drawing
  • US10884261B2 patent drawing

AI summary

A glasses-free three dimensional display panel, a manufacturing method thereof, and a glasses-free three dimensional display device are disclosed. The glasses-free three dimensional display panel includes a display panel and a grating panel disposed on a light exiting side of the display panel, wherein the grating panel includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; and the first substrate includes a first base substrate and a first electrode pattern disposed on the first base substrate, the first electrode pattern includes at least two first gating electrodes, and the second substrate includes a second base substrate and at least two second gating electrodes disposed on the second base substrate.