Liquid Crystal Viewing Angle Panel With Low-Luminance Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face a challenge in adjusting viewing angles while minimizing luminance degradation, which is often compromised by the use of light exit angle limiting films for security or image reflection improvement.
Innovation Solution
A viewing angle adjustment panel is developed, comprising an organic layer with multiple openings and a liquid crystal layer filled within these openings. The liquid crystal layer includes liquid crystal molecules and dye, oriented to adjust the viewing angle of light passing through, with electrodes applying an electric field to control light blocking and transmission modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a film that limits the light exit angle is used for security or to improve image reflection, then the viewing angle is controlled and image reflection is improved, but the aperture ratio of the display panel decreases, thereby reducing luminance
Solution Approach 1:
The patent divides the display panel into multiple regions with different aperture ratios. A first region has a larger aperture ratio to provide high luminance, while a second region has a smaller aperture ratio to provide wide viewing angle. This segmentation allows each region to optimize for its specific function without compromising the other.
Solution Approach 2:
Different regions of the display panel are assigned different local properties (aperture ratios) according to their functional requirements. The first region uses a larger aperture ratio for luminance-critical areas, while the second region uses a smaller aperture ratio for viewing angle-critical areas, achieving local optimization of display characteristics.
2Illumination intensity
If the aperture ratio of the display panel is increased to improve luminance, then the luminance is improved, but the viewing angle control capability deteriorates
Solution Approach 1:
The display panel is segmented into regions with different aperture ratios. Regions requiring high luminance use larger aperture ratios, while regions requiring viewing angle control use smaller aperture ratios with light blocking structures, allowing both requirements to be satisfied in different areas.
Solution Approach 2:
The patent applies different local qualities (aperture ratios and light blocking structures) to different regions based on their specific functional needs, enabling high luminance where needed while maintaining viewing angle control where required.
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
This solution allows for adjustable viewing angles without significant luminance degradation, enabling privacy protection and optimal luminance control in various usage environments, such as automotive displays.
Implementation Method 1
The liquid crystal layer may include liquid crystal molecules and a dye, and the liquid crystal molecules and the dye may be oriented in a direction and adjust a viewing angle of light passing through the liquid crystal layer
Implementation Method 2
The liquid crystal layer may include liquid crystal molecules and a dye
Implementation Method 3
The viewing angle adjustment panel may further include a first electrode and a second electrode that apply an electric field to the liquid crystal layer
Data Source
AI summary
A viewing angle adjustment panel includes an organic film including a plurality of openings, and a liquid crystal layer located in the plurality of openings. The liquid crystal layer includes liquid crystal molecules and a dye, the liquid crystal molecules and the dye are oriented in a direction, and the viewing angle of the light that is oriented and passes through the liquid crystal layer is adjusted.