Display Panel Sub-Pixel Layout for Multi-Angle Image Viewing

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Solution Overview

Problem

Conventional display technologies require multiple panels to meet diverse viewing needs, increasing costs and space demands, while also limiting the ability to view different images from various angles without additional equipment.

Innovation Solution

A display panel with sub-pixels of different types, each equipped with a light-emitting element and a light-shielding structure oriented in unique directions, allowing for the simultaneous display of multiple images by adjusting viewing angles without increasing panel quantity, thereby reducing costs and space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple display panels are used to meet diverse viewing needs, then viewing versatility is improved, but device complexity and cost increase

Engineering Contradiction:
Improveviewing versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display panel is segmented into multiple types of sub-pixels (first type and second type), where each sub-pixel type has light-shielding structures oriented in different directions. This segmentation allows different viewing angles to be achieved within a single panel, resolving the contradiction by providing viewing versatility without requiring multiple separate panels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The single display panel is designed to perform multiple functions by incorporating different sub-pixel types with varying light-shielding orientations. The panel can simultaneously display images optimized for different viewing angles (e.g., horizontal viewing and vertical viewing), making one panel universal for multiple viewing scenarios instead of requiring separate specialized panels.

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

2Adaptability or versatility

If multiple display panels are used to meet diverse viewing needs, then viewing versatility is improved, but space requirements increase

Engineering Contradiction:
Improveviewing versatilityVSAvoidspace requirements
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Multiple sub-pixel types with different light-shielding orientations are merged into a single display panel. The first sub-pixels with light-shielding structures in a first direction and second sub-pixels with light-shielding structures in a second direction are integrated together, allowing the panel to provide multiple viewing angle optimizations in one unified structure, thereby reducing space requirements compared to using separate panels.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If light-shielding structures are oriented in different directions for different sub-pixel types, then viewing angle performance is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveviewing angle performanceVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Different regions of the display panel have locally optimized light-shielding structures oriented in different directions. First sub-pixels have light-shielding structures oriented in a first direction optimized for horizontal viewing, while second sub-pixels have light-shielding structures oriented in a second direction optimized for vertical viewing. This local quality approach allows viewing angle optimization without requiring completely different manufacturing processes for entire panels.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The light-shielding structures are designed with asymmetric orientations - first sub-pixels have symmetric light-shielding in one direction while second sub-pixels have symmetric light-shielding in a perpendicular direction. This controlled asymmetry at the sub-pixel level enables different viewing angle performances while maintaining regular, manufacturable patterns that can be produced using standard photolithography and patterning processes.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS11843081B2Display panel and fabrication method, and display device for displaying multiple images at different viewing angles
Publication Date: 2023.12.12 XIAMEN TIANMA MICRO ELECTRONICS
  • US11843081B2 patent drawing
  • US11843081B2 patent drawing
  • US11843081B2 patent drawing

AI summary

A display panel and a fabrication method, and a display device are provided. The display panel includes a substrate, and a plurality of sub-pixels disposed on the substrate. Each sub-pixel includes a light-emitting element and a light-shielding structure corresponding to the light-emitting element. The plurality of sub-pixels are divided into N types, wherein N is an integer greater than or equal to two. For light-emitting elements in sub-pixels of different types of the plurality of sub-pixels, light-shielding structures are disposed in different directions of corresponding light-emitting elements, and light-emitting directions of the sub-pixels of different types are different.