Transparent Display Panel Non-Periodic Region Arrangement

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Solution Overview

Problem

Conventional transparent display devices suffer from image ghosting due to periodic arrangement of transmissive and non-transmissive regions, leading to diffraction of background light and blurring of images.

Innovation Solution

A transparent display panel with display regions arranged in a non-periodic array along intersecting directions, where the lengths of display regions and light transmissive regions are mismatched to prevent the formation of gratings, reducing diffraction and ghosting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If transmissive and non-transmissive regions are arranged periodically in transparent display devices, then the device structure is simple and easy to manufacture, but light diffraction occurs causing image ghosting and blurring

Engineering Contradiction:
Improveimage clarityVSAvoidarrangement structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by arranging transmissive and non-transmissive regions in a non-periodic, asymmetric pattern rather than a regular periodic structure. This asymmetric arrangement prevents the formation of diffraction gratings that cause image ghosting, while maintaining manufacturing feasibility through defined spatial relationships between regions.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent changes the spatial parameters of the display structure by varying the positions, sizes, and distances of transmissive and non-transmissive regions in a non-periodic manner. This parameter variation eliminates the regular periodicity that causes diffraction, thereby reducing image ghosting while preserving structural manufacturability.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If periodic arrangement of light transmissive regions is used, then the manufacturing process is simplified, but diffraction of background light occurs leading to image ghosting

Engineering Contradiction:
Improvearrangement processVSAvoidlight diffraction
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent eliminates periodic symmetry in the arrangement of light transmissive regions, using asymmetric positioning and sizing to prevent diffraction grating formation. This asymmetric design reduces light diffraction while maintaining a structured arrangement that remains manufacturable.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent varies spatial parameters including the positions, widths, and spacing of light transmissive regions in a non-periodic pattern. This parameter diversity prevents regular diffraction patterns while preserving manufacturing simplicity through systematic but non-repetitive arrangement rules.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If regular periodic structure is adopted in transparent display panel, then structural consistency is maintained, but image definition deteriorates due to ghosting

Engineering Contradiction:
Improvestructural consistencyVSAvoidimage definition
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent replaces periodic structural consistency with asymmetric structural organization. The non-periodic arrangement of transmissive and non-transmissive regions maintains structural stability through defined spatial relationships while eliminating the diffraction-induced ghosting that degrades image definition.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent introduces parameter variation in the positions, sizes, and spacing of display regions to create a non-periodic structure. This parameter diversity maintains structural consistency through systematic arrangement while preventing the regular diffraction patterns that reduce image definition.

Inventive Principle:
Principle #35Parameter changes

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

This design enhances image clarity and user experience by minimizing light diffraction and ghosting, allowing for sharper and more defined images.

Implementation Method 1

Lengths of the display regions in the first direction change non-periodically among multiple display regions arranged along the first direction; and/or, the first light transmissive regions of any two adjacent display regions are misaligned in the first direction among multiple display regions arranged along the second direction, thereby eliminating or reducing the diffraction of the light, eliminating or reducing the ghosting of images

Methodology Applied
Scientific EffectDiffraction: Diffraction

Data Source

PatentUS10976618B2Transparent display panel and transparent display device
Publication Date: 2021.04.13 SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
  • US10976618B2 patent drawing
  • US10976618B2 patent drawing
  • US10976618B2 patent drawing

AI summary

A transparent display panel and a transparent display device are provided. The transparent display panel includes multiple display regions arranged in an array along a first direction and a second direction. Each of the display regions includes a non-transmissive region, a first light transmissive region and a second light transmissive region. In a same display region, the non-transmissive region and the first light transmissive region are arranged sequentially in the first direction, and the non-transmissive region and the second light transmissive region are arranged sequentially in the second direction. Lengths of the display regions in the first direction change non-periodically among multiple display regions arranged along the first direction; and/or, the first light transmissive regions of any two adjacent display regions are misaligned in the first direction among multiple display regions arranged along the second direction.