Organic Diffraction Patterns for Display Quality
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Solution Overview
Problem
Existing display devices face challenges in achieving improved display quality and manufacturing efficiency, particularly in forming diffraction patterns without damaging them or requiring complex processes.
Innovation Solution
A display device with diffraction patterns made from organic material, arranged at constant intervals, which omits the need for a sealing member and simplifies the manufacturing process by using an organic material for patterning, and an inorganic film is deposited to protect the diffraction patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to form diffraction patterns, then the diffraction patterns can be created, but the manufacturing process becomes complex and the diffraction patterns may be damaged
Solution Approach 1:
The patent changes the material parameter from conventional inorganic materials to organic material for forming diffraction patterns. This parameter change allows the diffraction patterns to be formed through a simpler coating and photolithography process, reducing manufacturing complexity while maintaining pattern integrity through the organic material's inherent properties
Solution Approach 2:
The patent replaces mechanical/physical etching methods with a chemical/photochemical approach using organic material coating and photolithography. This substitution eliminates the need for complex mechanical processing steps that could damage the diffraction patterns, achieving both simplicity and reliability
2Manufacturing precision
If multiple process steps are used to form diffraction patterns, then precise patterns can be achieved, but manufacturing efficiency decreases
Solution Approach 1:
The patent merges the diffraction pattern formation process with the existing encapsulation layer structure. The organic material is coated over the encapsulation layer, and the photolithography patternning is integrated into the existing manufacturing flow, reducing the number of separate process steps while maintaining pattern precision
Solution Approach 2:
The patent performs preliminary coating of the organic material layer before the final patternning step. This preliminary action prepares the substrate in advance, allowing the photolithography process to directly create the diffraction patterns without requiring additional intermediate processing steps, thereby improving manufacturing efficiency
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 approach enhances display quality by creating duplicate unit images through constructive interference of light beams, improves manufacturing efficiency by reducing process steps, and prevents damage to the diffraction patterns and encapsulation layer.
Implementation Method 1
A plurality of diffraction patterns are spaced apart on the display panel at a constant interval. The diffraction patterns are configured to diffract at least some light beams emitted from the plurality of display elements.
Implementation Method 2
the at least some of the light beams diffracted by the diffraction patterns may interfere constructively
Data Source
AI summary
A display device comprising a display module configured to define a display surface. The display module includes a display panel including a plurality of display elements configured to display an image on the display surface. A plurality of diffraction patterns are spaced apart on the display panel at a constant interval. The diffraction patterns are configured to diffract at least some light beams emitted from the plurality of display elements. The plurality of diffraction patterns comprise an organic material.