Display Light Guide Surface Geometry for Reduced Scattering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in efficiently guiding and distributing light to enhance display quality and brightness, particularly in larger display panels, while minimizing light loss and degradation due to scattering by internal components.
Innovation Solution
A display device configuration featuring a light guide with specific surface orientations and reflective members to direct light efficiently, reducing scattering and absorption by internal components, and eliminating the need for a frame to fix the optical unit, thereby enhancing light entry and maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional light guide configuration is used, then light distribution is achieved, but light scattering and absorption by internal components cause brightness degradation and quality loss
Solution Approach 1:
The patent introduces a light guide plate with specific surface orientations (first surface and second surface at different angles) to redirect light paths in three-dimensional space, allowing light to bypass internal components that cause scattering and absorption, thereby reducing light loss while maintaining brightness distribution
Solution Approach 2:
The light guide plate acts as an intermediary element between the light source and the display panel, using its oriented surfaces to mediate light transmission and redirect it away from components that cause degradation, thus preserving light intensity and quality
2Strength
If a frame is used to fix the optical unit, then structural stability is achieved, but device weight increases
Solution Approach 1:
The patent removes the traditional frame structure that was used to fix the optical unit, extracting the weight-bearing function to other components or using alternative fixation methods, thereby eliminating unnecessary weight while maintaining structural stability through the light guide plate's own design
Solution Approach 2:
The light guide plate serves multiple functions: it distributes light, provides structural support, and eliminates the need for a separate frame, thereby achieving multi-functionality that reduces overall device weight while maintaining stability
3Productivity
If light enters the display device at conventional angles, then light distribution is achieved, but scattering by internal components degrades display quality
Solution Approach 1:
The patent uses light guide surfaces oriented at specific angles (first surface and second surface) to redirect light in three-dimensional space, changing the light path dimension to bypass internal components that cause scattering, thereby improving light-entering efficiency while reducing quality degradation
Solution Approach 2:
The light guide plate employs asymmetric surface orientations where the first surface and second surface are at different angles, creating asymmetric light paths that strategically avoid internal components, reducing scattering effects while maintaining efficient light entry
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 proposed configuration improves light-entering efficiency, suppresses degradation of brightness and display quality, and reduces the overall weight of the display device by optimizing light distribution and minimizing scattering.
Implementation Method 1
a liquid crystal layer located between the first transparent substrate and the second transparent substrate and containing strip-shaped polymers and liquid crystal molecules
Implementation Method 2
A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface
Implementation Method 3
reflective members to direct light efficiently, reducing scattering and absorption
Data Source
AI summary
According to one embodiment, a display device includes a first transparent substrate including a first main surface, a second transparent substrate including a first end portion, a liquid crystal layer containing strip-shaped polymers and liquid crystal molecules, a third transparent substrate including a second end portion and a second main surface, a first light-emitting element and a first light guide. The first light guide includes a first surface and a second surface. A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface.