Multi-viewpoint 3D Display Screen with Directly Bonded Grating

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Solution Overview

Problem

Conventional 3D display screens face issues with increased thickness and weight due to the arrangement of gratings on both sides of a 2D display panel, leading to installation and transportation challenges, especially for large-sized displays, while also reducing resolution and increasing rendering complexity.

Innovation Solution

A multi-viewpoint 3D display screen design featuring a display panel with composite pixels and a grating directly bonded to it, where the grating's width is optimized based on the thickness of the panel and the refractive index, allowing for a thinner and lighter structure without the need for additional pad layers, and a 3D display terminal that renders subpixels based on 3D signals and eye positioning data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If gratings are arranged on both sides of a 2D display panel to provide 3D display effect, then the 3D display capability is improved, but the thickness and weight of the display panel increase significantly

Engineering Contradiction:
Improve3D display capabilityVSAvoiddisplay panel weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of stationary object

Solution Approach 1:

The patent extracts the grating structure from the conventional dual-sided arrangement and repositions it to be located behind the display panel only. This extraction of the grating from its traditional position allows the display panel to maintain its original thickness and weight characteristics while still achieving the 3D display effect through the relocated grating structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the spatial dimension of the grating arrangement by moving it from a front-facing dual-sided configuration to a rear-positioned single-sided configuration. This dimensional repositioning behind the display panel enables the system to achieve 3D functionality without adding to the panel's thickness and weight.

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

2Adaptability or versatility

If gratings are arranged on both sides of a 2D display panel to provide 3D display effect, then the 3D display capability is improved, but the thickness of the display panel increases

Engineering Contradiction:
Improve3D display capabilityVSAvoiddisplay panel thickness
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent extracts the grating structure from the conventional dual-sided arrangement and repositions it to be located behind the display panel only. This extraction of the grating from its traditional position allows the display panel to maintain its original thickness and weight characteristics while still achieving the 3D display effect through the relocated grating structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the spatial dimension of the grating arrangement by moving it from a front-facing dual-sided configuration to a rear-positioned single-sided configuration. This dimensional repositioning behind the display panel enables the system to achieve 3D functionality without adding to the panel's thickness and weight.

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

3Adaptability or versatility

If conventional 3D display structure is used with gratings on both sides, then 3D display effect is achieved, but the overall mass of large-sized panels increases leading to installation and transportation problems

Engineering Contradiction:
Improve3D display effectVSAvoidinstallation and transportation ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent extracts the grating structure from the conventional dual-sided arrangement and repositions it to be located behind the display panel only. This extraction of the grating from its traditional position allows the display panel to maintain its original thickness and weight characteristics while still achieving the 3D display effect through the relocated grating structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the spatial dimension of the grating arrangement by moving it from a front-facing dual-sided configuration to a rear-positioned single-sided configuration. This dimensional repositioning behind the display panel enables the system to achieve 3D functionality without adding to the panel's thickness and weight.

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

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

The solution effectively reduces the thickness and weight of the 3D display screen and terminal, maintains the 3D display effect, and enhances display resolution without increasing the panel thickness, facilitating easier installation and use of large-sized screens.

Implementation Method 1

n represents a refractive index of the grating

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS12170753B2Multi-viewpoint 3D display screen and 3D display terminal
Publication Date: 2024.12.17 BEIJING IVISUAL 3D TECH CO LTD
  • US12170753B2 patent drawing
  • US12170753B2 patent drawing
  • US12170753B2 patent drawing

AI summary

Provided is a multi-viewpoint 3D display screen, comprising: a display panel, comprising a plurality of composite pixels, wherein each composite pixel of the plurality of composite pixels comprises a plurality of composite subpixels, and each composite subpixel of the plurality of composite subpixels comprises a plurality of subpixels corresponding to a plurality of viewpoints of the multi-viewpoint 3D display screen; and a grating, directly bonded to the display panel. In the multi-viewpoint 3D display screen, the grating without a pad layer can be realized, and meanwhile, a 3D viewing effect under a predetermined distance is ensured, and an overall thickness and weight are reduced, thereby being convenient for installation and transportation. A 3D display terminal is also provided.