Transparent Display Solution Layer Light Blocking
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Solution Overview
Problem
Display devices with transparent light emitting diodes face issues where external light is transmitted and reflected by reflection electrodes, compromising the device's reliability by making internal components visible.
Innovation Solution
A display device design featuring a base substrate with electrodes and a light emitting element connected via a solution layer containing a light blocking material, which surrounds the contact parts and covers the electrodes to prevent external light reflection, along with a manufacturing method involving the formation of electrodes, solution layers, and bonding of light emitting elements using heat or light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transparent light emitting diode is used, then the display device achieves transparency and modern aesthetic appeal, but external light is transmitted through the device and reflected by internal electrodes, compromising reliability and visibility
Solution Approach 1:
A solution layer containing light blocking material is introduced as an intermediary substance between the transparent light emitting diode and the underlying electrodes. This solution layer selectively blocks external light from reaching and reflecting off the electrodes while maintaining the overall transparency of the display device. The light blocking material in the solution layer acts as a mediator that prevents the harmful light reflection without completely obscuring the transparent LED's functionality.
Solution Approach 2:
The light blocking property is applied locally rather than uniformly across the entire display device. The solution layer containing light blocking material is positioned specifically in regions where light reflection from electrodes would be problematic, while other regions maintain their transparency. This localized application allows the display device to achieve transparency where needed while preventing light reflection in critical areas.
2Reliability
If a solution layer with light blocking material is added to block external light, then light reflection is prevented and reliability is improved, but the device structure becomes more complex and manufacturing steps increase
Solution Approach 1:
The solution layer serves multiple functions simultaneously: it blocks external light from reaching electrodes, prevents light reflection, provides a bonding medium for the transparent light emitting diode, and can offer electrical insulation. By combining multiple functions into a single layer, the overall device complexity is minimized while achieving the desired light blocking effect.
Solution Approach 2:
The light blocking function is merged with the existing solution layer structure rather than adding separate dedicated components. The solution layer that is already part of the transparent light emitting diode assembly is enhanced by incorporating light blocking material, combining the benefits of light blocking with the existing structural and functional roles of the solution layer.
3Reliability
If electrodes are exposed to block light reflection, then light blocking is effective, but the electrical connection and bonding between electrodes and light emitting elements becomes difficult
Solution Approach 1:
The light blocking material in the solution layer is positioned locally around and between the electrodes rather than forming a continuous layer that would cover the entire electrode surface. This localized placement ensures that light reflection is blocked in critical areas while leaving sufficient portions of the electrodes exposed for proper electrical connection and bonding with the light emitting elements.
Solution Approach 2:
The solution layer acts as an intermediary that allows both light blocking and electrical connection to coexist. It provides a medium that blocks light reflection from electrodes while maintaining the electrical conductivity and bonding capability of the electrode interfaces, effectively mediating between the conflicting requirements of light blocking and electrical connection.
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
The solution effectively blocks external light, enhancing the reliability of the display device by preventing the visibility of internal components and improving the bonding process between electrodes and light emitting elements.
Implementation Method 1
a solution layer between the base substrate and the light emitting element, wherein the solution layer includes a light blocking material
Implementation Method 2
bonding the light emitting element with the electrode by applying light or heat to a part at which the light emitting element is connected to the electrode
Data Source
AI summary
A display device and a manufacturing method of a display device are provided. A display device includes a base substrate; an electrode on the base substrate, a light emitting element on the base substrate and electrically connected to the electrode, and a solution layer between the base substrate and the light emitting element, the solution layer including a light blocking material.