Electro-Optical Device Reflective Layer Sealant Light Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In display devices with high-polymer distributed liquid crystal layers, the absorption of light by the sealant between substrates reduces image brightness due to total reflection and partial absorption of light.
Innovation Solution
Incorporating a first reflective layer between the substrates that overlaps the sealant along the edges, which reflects light back into the display area, reducing absorption and enhancing image brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a sealant is used to attach substrates together, then the substrates are securely bonded, but light is partially absorbed by the sealant causing decreased image brightness
Solution Approach 1:
A reflective layer is introduced as an intermediary component between the light path and the sealant. This reflective layer redirects light that would otherwise be absorbed by the sealant back into the display area, thereby maintaining the sealant's bonding function while eliminating its harmful light absorption effect
Solution Approach 2:
The sealant's light absorption, which was previously a harmful effect reducing brightness, is converted into a benefit by positioning a reflective layer behind it. The reflective layer captures the absorbed light path and redirects it, turning the sealant's position in the light path from a disadvantage into an opportunity for additional light reflection and utilization
2Use of energy by moving object
If light propagates through the panel with total reflection between surfaces, then light is contained within the panel, but the sealant still absorbs部分 light reducing overall efficiency
Solution Approach 1:
The reflective layer serves as a mediator that intercepts light before it reaches the sealant and redirects it back into the light propagation path. This prevents the sealant from acting as an energy loss point and instead creates an additional reflection surface that enhances light utilization
Solution Approach 2:
Light that would have been absorbed and lost by the sealant is instead recovered through the reflective layer. The reflective layer captures this light and returns it to the display area, effectively recovering energy that would otherwise be discarded
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 reflective layer effectively inhibits light absorption by the sealant, thereby improving the brightness and efficiency of image display by ensuring more light is utilized for image formation.
Implementation Method 1
Incorporating a first reflective layer between the substrates that overlaps the sealant along the edges, which reflects light back into the display area
Data Source
AI summary
According to one embodiment, an electro-optical device includes a panel, a sealant, a liquid crystal layer, a light source and a reflective layer. The panel includes first and second transparent substrates, an electro-optical area and a peripheral area. The seal is provided in the peripheral area and adheres the substrates. The liquid crystal layer contains a polymer liquid crystal composition. The light source opposes a side surface of the first or second substrates. The reflective layer is between the substrates. The panel includes a first edge, and the reflective layer overlaps a portion of the sealant, located along the first edge.