Display Light-Shielding Structure for High-Angle Privacy Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices struggle with light emission at high angles, which degrades display quality and compromises privacy in certain viewing conditions.
Innovation Solution
Incorporating a light-emitting element layer with a reflection preventing layer and a light-shielding layer, featuring openings and patterns to manage light emission angles, along with a color filter pattern to absorb specific light emissions, enhancing display quality and privacy in different viewing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional display structure is used, then the device structure is simple, but light emitted at high angles degrades display quality and compromises privacy
Solution Approach 1:
The display structure is segmented into multiple functional layers: a light-emitting element layer, a reflection preventing layer with light-shielding layer and openings, and an upper functional layer with light-shielding patterns and color filter patterns. This segmentation allows each layer to perform its specific function in managing light emission angles, resolving the contradiction between structural simplicity and display quality.
Solution Approach 2:
Different regions of the display structure are given different properties: the light-shielding layer has openings in specific regions to allow light transmission while blocking light in other regions; the light-shielding pattern and color filter pattern are selectively positioned to control high-angle light emission. This local differentiation enables precise control over light emission characteristics to improve display quality.
2Object-affected harmful factors
If a light-shielding structure is added to block high-angle light, then display quality is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into integrated structures: the reflection preventing layer combines light-shielding functionality with a layered structure including a light-shielding layer and openings; the upper functional layer integrates light-shielding patterns and color filter patterns that work together to control light emission. This merging reduces overall structural complexity while achieving the desired light control.
Solution Approach 2:
The light-shielding layer and light-shielding pattern serve multiple functions: they block high-angle light emission to improve display quality, control viewing angles for privacy enhancement, and work with the color filter pattern to manage color emission characteristics. This multi-functionality reduces the need for separate dedicated structures.
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 shields light emitted at high angles, improving display quality and enabling selective viewing modes for enhanced privacy, particularly in applications handling sensitive information.
Implementation Method 1
the color filter pattern may absorb light emitted from the (2-1)-th typical light-emitting element
Data Source
AI summary
An electronic device includes a light-emitting element layer including a (1-1)-th typical light-emitting element and a (2-1)-th typical light-emitting element, a reflection preventing layer disposed on the light-emitting element layer, and including a light-shielding layer, in which a plurality of openings respectively corresponding to a (1-1)-th light-emitting area defined in the (1-1)-th typical light-emitting element, and a (2-1)-th light-emitting area defined in the (2-1)-th typical light-emitting element is defined, a light-shielding pattern disposed on the reflection preventing layer, and surrounding the (2-1)-th light-emitting area in a plan view, and a color filter pattern overlapping the light-shielding pattern, and surrounding the (2-1)-th light-emitting area in the plan view.