Transparent Display Dummy Pattern Layout for Reflection Uniformity
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Solution Overview
Problem
Transparent display apparatuses experience a difference in reflection visibility between the display area and the non-display area due to structural differences, leading to inconsistent light reflection characteristics.
Innovation Solution
The transparent display apparatus incorporates a substrate with a display area and a non-display area, where the non-display area includes GIP portions with block portions that mimic the structure of the display area's subpixels, particularly the first subpixel, ensuring similar reflection visibility by overlapping pixel metal layers and omitting color filters where necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the non-display area includes circuits and signal lines with different structures from the display area, then the non-display area can perform its functional requirements, but a difference in reflection visibility occurs between the display area and non-display area
Solution Approach 1:
The patent applies the copying principle by creating dummy patterns in the non-display area that replicate the structure of subpixels in the display area. Specifically, the dummy patterns include metal layers arranged similarly to subpixel metal layers, causing light reflected from the non-display area to have similar optical characteristics to light reflected from the display area, thereby reducing the visible difference between these regions.
Solution Approach 2:
The patent applies local quality by selectively applying different structures to different regions. The dummy patterns are placed only in specific locations within the non-display area where reflection visibility differences would be most noticeable, rather than uniformly across the entire non-display area. This allows functional circuits to remain intact while locally correcting optical inconsistencies.
2Object-affected harmful factors
If dummy patterns are added to the non-display area to match the display area structure, then reflection visibility difference is reduced, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the non-display area into multiple block portions, each containing dummy patterns that correspond to specific subpixel regions. Rather than creating a single complex uniform structure across the entire non-display area, the dummy patterns are segmented into discrete units (first block portion, second block portion, etc.), each with simplified metal layer configurations that collectively achieve the desired optical effect.
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 design reduces the visibility difference between the display and non-display areas, enhancing overall reflection uniformity and visual coherence.
Implementation Method 1
a first block portion disposed at a position corresponding to the first subpixel, and the first block portion includes a dummy pattern provided to be the same as or similar to the first subpixel... improves reflection visibility between a display area and a non-display area
Implementation Method 2
the plurality of subpixels include a first subpixel in which at least three pixel metal layers are provided to overlap one another, the plurality of block portions include a first block portion disposed at a position corresponding to the first subpixel, and the first block portion includes at least three non-pixel metal layers disposed on the same layer as the at least three pixel metal layers and provided to overlap one another
Data Source
AI summary
A transparent display apparatus is provided, which improves reflection visibility between a display area and a non-display area. The transparent display apparatus comprises a substrate provided with a display area, in which a plurality of pixels having a first transmissive portion and a plurality of subpixels are disposed, and a non-display area near the display area, and a plurality of GIP portions provided in the non-display area on the substrate, including a second transmissive portion and a plurality of block portions, respectively, wherein the plurality of subpixels include a first subpixel provided to emit white light, the plurality of block portions include a first block portion disposed at a position corresponding to the first subpixel, and the first block portion include a dummy pattern provided to be the same as or similar to the first subpixel.