Display Panel Protective Layer for Anti-Reflection Without Flux Loss
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Solution Overview
Problem
Existing display panels face challenges in improving anti-reflection performance and luminous flux, particularly due to the spread of black light-absorbing materials during manufacturing, which affects light emission patterns and efficiency.
Innovation Solution
A display panel design incorporating a light-shielding layer with a hydrophilic material and a protective layer with a hydrophobic material, where the protective layer includes protective portions that prevent the light-shielding layer from spreading onto the light-emitting elements, maintaining light emission patterns and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light-shielding layer containing black light-absorbing material is applied to improve anti-reflection performance, then the anti-reflection performance is improved, but the material spreads during manufacturing and interferes with light-emitting elements, reducing luminous flux
Solution Approach 1:
A protective layer is introduced as an intermediary between the light-shielding layer and the light-emitting elements. This protective layer prevents the black light-absorbing material from spreading onto the light-emitting elements during manufacturing, thereby maintaining both the anti-reflection performance and the luminous flux. The protective layer acts as a barrier that isolates the harmful material from the light-emitting elements while allowing the light-shielding layer to function effectively.
Solution Approach 2:
The protective layer is applied in advance before the light-shielding layer is formed. This preliminary action ensures that when the black light-absorbing material is subsequently applied, it cannot spread onto the light-emitting elements because the protective layer is already in place. This sequence of operations prevents the harmful effect before it can occur.
2Manufacturing precision
If the light-shielding layer is applied between adjacent light-emitting elements, then display accuracy is improved, but the manufacturing complexity increases due to the need for precise positioning and additional protective measures
Solution Approach 1:
The protective layer serves multiple functions simultaneously: it prevents material spread, simplifies the manufacturing process by eliminating the need for complex positioning mechanisms, and maintains display accuracy. By having a single layer perform multiple functions, the overall device complexity is reduced while still achieving the desired manufacturing precision.
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
Enhances anti-reflection performance and luminous flux by preventing the light-shielding layer from interfering with the light-emitting elements, improving display accuracy and brightness.
Implementation Method 1
one of the light-shielding layers and the protective layer contains a hydrophilic material and the other contains a hydrophobic material
Data Source
AI summary
A display panel including an array layer and first light-emitting elements located in a first display region. The first light-emitting elements are electrically connected to the array layer. The display panel further includes a light-shielding layer and a protective layer, where one of the light-shielding layers and the protective layer contains a hydrophilic material and the other contains a hydrophobic material. The light-shielding layer includes a first light-shielding portion, which is located on a surface of the array layer facing the first light-emitting elements and between adjacent first light-emitting elements. The first light-emitting element includes a first surface away from the array layer. The protective layer includes first protective portions each located in at least a partial region of the first surface.