Display Light Blocking Layer Asymmetric Holes
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Solution Overview
Problem
Display apparatuses face challenges in minimizing side visibility, particularly in public and multi-use facilities, where personal information exposure is a concern due to the increasing demand for high-quality displays that are often larger or thinner.
Innovation Solution
The display apparatus incorporates a substrate with distinct areas, each equipped with a display element, an input sensing layer, an anti-reflection layer, and a light blocking layer. The light blocking layer includes color filters and holes of varying sizes to control light emission and reduce side visibility, with the controller enabling different driving modes to manage light emission based on user selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display apparatus uses a uniform light blocking layer structure, then the manufacturing process is simple, but the side visibility cannot be minimized effectively
Solution Approach 1:
The light blocking layer is divided into different regions with different hole sizes: a first region with larger holes and a second region with smaller holes. This local differentiation allows the display to minimize side visibility in the second region while maintaining adequate light transmission in the first region, resolving the contradiction between manufacturing simplicity and side visibility control.
Solution Approach 2:
The light blocking layer is segmented into multiple functional regions with different characteristics. The first region (with larger holes) and second region (with smaller holes) are separated by a partition, allowing independent optimization of each region's light transmission and side visibility properties without complicating the overall manufacturing process.
2Object-affected harmful factors
If the display apparatus reduces side visibility through asymmetric hole design, then personal information exposure is minimized, but the device complexity increases
Solution Approach 1:
Asymmetric hole sizes are implemented only in specific regions where side visibility control is most critical. The light blocking layer maintains a relatively simple overall structure with localized variations in hole dimensions, minimizing information exposure while avoiding excessive structural complexity throughout the entire device.
Solution Approach 2:
The light blocking layer employs asymmetric hole designs where the first region has larger holes and the second region has smaller holes. This asymmetric configuration is strategically applied to optimize side visibility reduction in specific viewing directions while maintaining a manageable level of overall device complexity through systematic regional differentiation.
3Illumination intensity
If the display apparatus uses larger holes in the light blocking layer, then light transmission is improved, but side visibility increases
Solution Approach 1:
The light blocking layer is segmented into a first region with larger holes for improved light transmission and a second region with smaller holes for reduced side visibility. This segmentation allows the display to achieve adequate illumination in the first region while minimizing side visibility in the second region, resolving the contradiction between light transmission and side visibility control.
Solution Approach 2:
Different hole sizes are applied to different regions based on their specific functional requirements. The first region uses larger holes to maximize light transmission where it is most needed, while the second region uses smaller holes to minimize side visibility, creating a locally optimized structure that resolves the overall contradiction.
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 configuration effectively minimizes side visibility, preventing personal information exposure by adjusting the viewing angle and light emission patterns, while maintaining high-quality image display.
Implementation Method 1
a light blocking layer disposed on the anti-reflection layer, a first hole overlapping the emission area of the first display element are defined in the light blocking layer and a second hole overlapping the emission area of the second display element
Implementation Method 2
an anti-reflection layer disposed on the input sensing layer
Data Source
AI summary
Provided is a display apparatus includes a substrate including a first area and a second area; a first display element arranged in the first area; a second display element arranged in the second area; an input sensing layer disposed on the first display element and the second display element; an anti-reflection layer disposed on the input sensing layer; and a light blocking layer disposed on the anti-reflection layer, the light blocking layer having a first hole overlapping the emission area of the first display element and a second hole overlapping the emission area of the second display element, wherein an area of the first hole is greater than an area of the second hole.