Light Control Layer Structure for Display Viewing Angle Control
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Solution Overview
Problem
Existing display devices face challenges in controlling viewing angles and luminance, particularly in preventing light from being reflected onto windshields at night, which can interfere with drivers and compromise privacy.
Innovation Solution
A display device with a light control layer that includes a plurality of light blocking films spaced apart and connected by bridges, with a light transmitting film between the films and bridges, enhancing viewing angle control and luminance characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light control layer with light blocking films is added to control viewing angle and prevent light reflection, then viewing angle control and privacy are improved, but device complexity increases
Solution Approach 1:
The light control layer is segmented into multiple light blocking films spaced apart from each other, with bridges connecting them. This segmentation allows light to pass through gaps between films while blocking reflected light at specific angles, achieving viewing angle control without requiring a complete opaque layer.
Solution Approach 2:
A light transmitting film is introduced as an intermediary component between the light blocking films and bridges. This intermediary layer allows selective light transmission while maintaining the structural integrity of the light blocking films, enabling both light control and structural stability.
2Object-affected harmful factors
If light blocking films are spaced apart to control viewing angle, then viewing angle control is improved, but structural stability of the light blocking films deteriorates
Solution Approach 1:
The light transmitting film acts as an intermediary support structure between the spaced light blocking films. It provides mechanical support to prevent film collapse while maintaining the spacing necessary for viewing angle control, solving both light control and structural stability requirements.
Solution Approach 2:
The light control layer combines multiple materials with different properties: light blocking films for light control, light transmitting film for structural support and light transmission, and bridges for mechanical connection. This composite structure achieves both optical performance and structural stability.
3Stability of the object's composition
If bridges are added to connect light blocking films for structural support, then structural stability is improved, but light transmission characteristics worsen
Solution Approach 1:
The bridges are designed as thin film structures that provide necessary mechanical connection and structural stability while minimizing their width and light blocking area. The thin film design allows maximum light transmission through the bridges, reducing their impact on luminance characteristics.
Solution Approach 2:
The bridges are strategically positioned and sized to provide structural support only where needed between light blocking films, while maintaining large open areas for light transmission. The local structural reinforcement does not compromise overall light transmission characteristics.
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 improves viewing angle control and luminance characteristics, preventing light from being reflected in undesirable directions and enhancing privacy and driver safety.
Implementation Method 1
a plurality of light blocking films disposed to be spaced apart from each other
Implementation Method 2
a light transmitting film disposed between the plurality of light blocking films and the bridge
Data Source
AI summary
A display device and method for manufacturing the display device includes, a substrate, a light emitting element layer disposed on the substrate and including at least one light emitting element, and a light control layer disposed on the light emitting element layer, wherein the light control layer includes, a plurality of light blocking films disposed to be spaced apart from each other, at least one bridge connecting at least two of the plurality of light blocking films, and a light transmitting film disposed between the plurality of light blocking films and the bridge.