Display Apparatus Polarization Plate Reduces Light Reflection
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Solution Overview
Problem
Display apparatuses experience image quality degradation due to external light reflection from wiring lines in the peripheral area, which affects user visibility.
Innovation Solution
A display apparatus design featuring a substrate with a display area and a peripheral area, including an interlayer insulating layer with a concave-convex surface, a conductive layer with a corresponding concave-convex surface, a planarization layer, and a polarization plate, which reduces external light reflection by ensuring a flat surface for light interference and minimizes diffused reflection from wiring lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wiring lines are disposed in the peripheral area for signal transmission, then electrical signal transmission is enabled, but external light reflection causes image quality degradation
Solution Approach 1:
A polarization plate is introduced as an intermediary component between the external light source and the display area. This polarization plate selectively blocks polarized external light from reaching the display area, preventing light reflection from wiring lines while allowing the display function to operate normally. The polarization plate thus mediates between the need for signal transmission wiring and the need to prevent image degradation.
Solution Approach 2:
The patent utilizes optical property changes through the polarization plate, which alters the polarization state of incoming light. By changing the polarization characteristics of external light, the system can selectively block reflected light from wiring lines while maintaining display visibility, effectively addressing the light reflection problem without compromising signal transmission functionality.
2Object-affected harmful factors
If a polarization plate is added to prevent external light reflection, then image quality is improved, but device complexity increases
Solution Approach 1:
The polarization plate serves multiple functions simultaneously: it blocks polarized external light from causing image degradation, maintains the display function, and works with the existing wiring line structure without requiring fundamental redesign. This multi-functionality approach adds minimal complexity while achieving multiple objectives including light blocking and display maintenance.
Solution Approach 2:
The patent changes the optical parameters of the system by introducing a polarization plate that modifies the polarization state of light. This parameter change approach allows selective blocking of external light based on its polarization characteristics, improving image quality without requiring complex structural modifications to the underlying display and wiring architecture.
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 design effectively prevents or reduces image quality degradation by ensuring that external light is not diffusely reflected by the conductive layers, maintaining image clarity despite external light exposure.
Implementation Method 1
a polarization plate disposed on the second conductive layer
Data Source
AI summary
A display apparatus includes a substrate including a display area and a peripheral area disposed outside of the display area, a plurality of wiring lines disposed in the peripheral area, and an interlayer insulating layer covering the plurality of wiring lines. The interlayer insulating layer includes an upper surface having a first concave-convex surface corresponding to the plurality of wiring lines. The display apparatus further includes a first conductive layer disposed on the interlayer insulating layer and including a second upper surface having a second concave-convex surface corresponding to the first concave-convex surface, a planarization layer disposed on the first conductive layer and having a flat upper surface, a second conductive layer disposed on the planarization layer and having a flat upper surface, and a polarization plate disposed on the second conductive layer.