Dummy Pixel Border Concealment in Transparent Displays
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Solution Overview
Problem
Transparent display devices with transmissive areas allow external light to pass through, making their internal structure visible from the outside, which can compromise their aesthetic and functional integrity, especially when installed in locations like vehicle dashboards.
Innovation Solution
The implementation of a display device with a step-shaped border of pixels and a dummy wire structure in the transmissive area, where the dummy wire is positioned on the same layer as the signal and power lines, and the second transmissive area has a similar lamination structure to the first transmissive area, effectively concealing the border of the display unit from external view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transmissive area is provided to allow external light to pass through, then transparency and aesthetic appeal are improved, but the internal structure becomes visible from the outside
Solution Approach 1:
The patent creates a dummy unit that copies the essential structural features of the display unit (including transmissive area and pixel area with dummy wire) to mask the actual boundary. This fake structure visually replicates the real pixel structure, causing the human eye to perceive continuity and fail to detect the actual boundary between display and peripheral areas.
Solution Approach 2:
The dummy unit acts as an intermediary element positioned between the display unit and the peripheral area. It serves as a visual buffer that transitions the appearance from the structured pixel area to the peripheral region, preventing direct visibility of the boundary and internal structures through the transmissive area.
2Shape
If the display area has a clear boundary, then the display unit is well-defined, but the border becomes visible and compromises aesthetic appeal
Solution Approach 1:
The dummy unit replicates the visual characteristics of actual pixels (including the dummy wire mimicking signal lines) to create a fake pixel structure at the boundary. This copied structure blends seamlessly with real pixels, making the transition zone invisible while maintaining clear display area definition.
Solution Approach 2:
The dummy structure is applied locally at the boundary region between the display area and peripheral area, while the central display area maintains its normal pixel structure. This localized application of the dummy unit creates a gradual visual transition only where needed, preserving the aesthetic appeal without affecting the overall display quality.
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 prevents the pixels at the border of the display area from being viewed from the outside, maintaining the device's transparency and aesthetic appeal while ensuring the internal structure remains hidden.
Implementation Method 1
Electrons injected from one electrode and holes injected from the other electrode are bonded to one another in the organic emission layer to form excitons, and light is emitted while the excitons discharge energy.
Data Source
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AI summary
A display device includes: a substrate including a display area for displaying an image and a peripheral area positioned adjacent to the display area; a plurality of normal pixels disposed within the display area on the substrate, where each normal pixel includes a first transmissive area and a pixel area disposed adjacent the first transmissive area; and a dummy pixel disposed within the display area on the substrate, adjacent to a curved section of the peripheral area, and disposed between the peripheral area and the plurality of pixels. The dummy pixel includes: a second transmissive area; and a wire area disposed adjacent the second transmissive area.