Display Panel Notch Structures for Side Light Leakage Control
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Solution Overview
Problem
Display panels face issues with low luminescence efficiency due to side light leakage and optical crosstalk between light-emitting elements, affecting the display effect.
Innovation Solution
The implementation of a display panel design featuring auxiliary structures with notch structures surrounding light-emitting elements, which reduce side light leakage and enhance luminescence efficiency by reflecting light emitted from side surfaces back into the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If auxiliary structures are added to surround light-emitting elements, then optical crosstalk is reduced and luminescence efficiency is improved, but device complexity increases
Solution Approach 1:
The auxiliary structure is divided into multiple notches arranged around the light-emitting element, with each notch serving as an independent light reflection surface. This segmentation allows targeted control of light paths from different sides of the light-emitting element, improving luminescence efficiency while maintaining manageable structural complexity
Solution Approach 2:
The auxiliary structure surrounding each light-emitting element serves multiple functions simultaneously: it reflects side-emitted light back toward the light-emitting surface, acts as a barrier to prevent optical crosstalk between adjacent elements, and maintains structural organization. This multi-functionality addresses multiple problems with a single structural solution
2Loss of energy
If notch structures are added to auxiliary structures for light reflection, then luminescence efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The notch structures are pre-formed in the auxiliary structure material before the final assembly step. By preparing the light-reflecting surfaces in advance during auxiliary structure fabrication, the main assembly process is simplified, and the notch structures are already positioned to optimally reflect light from the light-emitting elements
Solution Approach 2:
The auxiliary structure material is selected and processed to achieve optimal optical parameters for light reflection. By controlling the refractive index, surface roughness, and geometric parameters of the notches during manufacturing, the structure achieves high light reflection efficiency without requiring complex post-processing or adjustment steps
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 improves luminescence efficiency and display effect by minimizing optical crosstalk and increasing contrast ratio, while simplifying the manufacturing process and reducing costs through the use of auxiliary structures as an entire surface layer.
Implementation Method 1
the notch structure is provided on the side of the auxiliary structure close to the light-emitting element and on the side of the auxiliary structure close to the light-emitting surface of the display panel so that light emitted from a side surface of the light-emitting element can be reflected on a surface of the notch structure
Data Source
AI summary
Provided are a display panel and a preparation method of the display panel. The display panel includes a first substrate and a second substrate which are disposed opposite to each other, a plurality of light-emitting elements arranged between the first substrate and the second substrate and a plurality of auxiliary structures arranged between the first substrate and the second substrate; where the plurality of auxiliary structures surround the plurality of light-emitting elements and each auxiliary structure is provided with a notch structure on a side of the each auxiliary structure close to a respective one of the plurality of light-emitting elements and on a side of the each auxiliary structure close to a light-emitting surface of the display panel.