Pixel Intermediate Pattern Reflecting Light
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices face challenges in enhancing light emission efficiency due to the loss of light emitted from light emitting elements, particularly in directing this light towards the image display direction.
Innovation Solution
Incorporating an intermediate pattern between the light emitting elements and the substrate, which is made of the same material as the electrodes and is positioned to reflect light emitted from the elements in the image display direction, thereby increasing the amount of light progressed in this direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If light emitting elements are disposed close to the substrate, then device structure is simplified, but light emission efficiency is reduced due to light loss
Solution Approach 1:
The patent converts the harmful effect of light loss towards the substrate into a beneficial effect by introducing a reflective intermediate pattern. This pattern reflects the light that would otherwise be lost back towards the light emitting elements, transforming energy loss into useful light output and improving overall emission efficiency without increasing device complexity
Solution Approach 2:
The intermediate pattern acts as a mediator between the light emitting elements and the substrate. It is disposed between these two components to manage light direction, reflecting light towards the display direction while maintaining the simplified close-proximity structure. This intermediary element resolves the contradiction by enabling efficient light management without increasing structural complexity
2Loss of energy
If intermediate pattern is added to reflect light, then light emission efficiency is improved, but device complexity increases
Solution Approach 1:
The intermediate pattern is designed to serve multiple functions: it reflects light towards the display direction, maintains structural support, and enables electrical connection pathways. By combining multiple functions into a single element, the patent improves light emission efficiency without proportionally increasing device complexity
Solution Approach 2:
The intermediate pattern is configured to have uniform optical properties across its surface, ensuring consistent light reflection characteristics. This homogeneity allows for simplified manufacturing and design while achieving improved light emission efficiency, as the uniform structure can be implemented using standard fabrication processes
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 configuration improves light emission efficiency by effectively reflecting and directing light emitted from the light emitting elements towards the viewer, enhancing the overall display performance.
Implementation Method 1
The intermediate pattern may reflect light emitted from each of the light emitting elements in one direction
Data Source
AI summary
A pixel includes a first electrode and a second electrode spaced from each other in a first direction on a substrate; a plurality of light emitting elements between the first electrode and the second electrode; an intermediate pattern located between the first electrode and the second electrode in the first direction and located between the substrate and the plurality of light emitting elements in a thickness direction of the substrate; a first contact electrode electrically connecting one end portion of each of the light emitting elements and the first electrode; and a second contact electrode electrically connecting an other end portion of each of the light emitting elements and the second electrode.