Transparent Display Backside Light Blocking Pillar Layout
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Solution Overview
Problem
Transparent display apparatuses suffer from backside light leakage due to image light beams being reflected back and exiting through the display apparatus, compromising visibility.
Innovation Solution
Incorporation of a transparent substrate with a pixel array and light blocking elements, including light blocking pillars arranged on the substrate's backside to minimize light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a transparent display apparatus uses a display area with pixels to provide images, then image display function is achieved, but part of the image light beam is reflected back and causes backside light leakage
Solution Approach 1:
The patent introduces a light blocking element as an intermediary component positioned between the display area and the transparent area. This light blocking element includes multiple light blocking pillars that intercept and block the reflected image light beams before they can exit through the back of the transparent display apparatus, thereby preventing backside light leakage while maintaining the image display function.
Solution Approach 2:
The patent addresses the light leakage problem by adding a spatial dimension solution - placing light blocking pillars at the backside of the transparent substrate. This three-dimensional arrangement of blocking elements intercepts light paths without affecting the front-side image display, effectively blocking reflected light in the backward direction while maintaining forward visibility.
2Object-generated harmful factors
If light blocking elements are added to reduce backside light leakage, then light leakage is reduced, but the transparency and simplicity of the display apparatus is compromised
Solution Approach 1:
The light blocking element is segmented into multiple individual light blocking pillars rather than using a single solid blocking structure. These pillars are spaced apart from each other, allowing light to pass through the gaps between them while still effectively blocking the reflected image light beams. This segmentation reduces the overall blocking area and maintains better transparency compared to a solid block.
Solution Approach 2:
The light blocking pillars are strategically positioned only in regions where reflected light beams are most likely to exit, rather than covering the entire backside of the transparent substrate. This localized blocking approach provides effective light leakage prevention in critical areas while maintaining transparency in other regions, thus adding minimal complexity.
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 reduces light leakage, enhancing the transparency and visibility of the display apparatus by optimizing the arrangement and dimensions of the light blocking pillars.
Implementation Method 1
The light blocking element includes multiple light blocking pillars spaced apart from each other... capable of improving a backside light leakage problem
Data Source
AI summary
A transparent display apparatus includes a transparent substrate, a pixel array, and a light blocking element. The transparent substrate has multiple display areas and multiple transparent areas. The pixel array is disposed on the transparent substrate and includes multiple pixels and multiple openings. Each of the pixels overlaps with a corresponding display area. Each of the openings overlaps with a corresponding transparent area. The light blocking element includes multiple light blocking pillars spaced apart from each other. The pixels are disposed on a first side of the transparent substrate, and the light blocking pillars are disposed on a second side of the transparent substrate.