Meshed Shielding Display Panel for Transparency and Grayscale Control
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Solution Overview
Problem
Current transparent displays face issues with low transparency and poor deep color display due to low luminance in deep color pixel regions, making it difficult to observe the background and achieving grayscale control.
Innovation Solution
A display panel design incorporating a substrate with a meshed shielding pattern, light-emitting devices, and a solar cell or photo-sensors, where the meshed shielding pattern defines pixel regions and the solar cells or photo-sensors enhance transparency and luminance, while the solar cells integrate power generation and improve grayscale control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the transparency of the display is increased, then the user can clearly observe the background behind the display, but the luminance displayed by deep color pixel regions decreases making grayscale control difficult
Solution Approach 1:
The display panel segments the pixel structure by introducing a meshed shielding pattern that divides each pixel region into multiple sub-regions. This segmentation allows different areas within a pixel to have different optical properties, enabling simultaneous achievement of high transparency in shielded areas and sufficient luminance in light-emitting areas, thereby resolving the contradiction between transparency and grayscale control
Solution Approach 2:
The invention applies local quality by creating regions with different functions within each pixel: meshed shielding pattern regions provide high transparency while light-emitting device regions provide sufficient luminance. The meshed structure specifically positions shielding portions and light-emitting portions in different locations within the same pixel region, allowing each local area to optimize for its specific function
2Reliability
If the luminance of deep color pixel regions is increased to improve grayscale control, then transparency is reduced and the background becomes harder to observe
Solution Approach 1:
By segmenting the pixel into meshed shielding regions and light-emitting regions, the invention allows the light-emitting portions to concentrate luminance output for improved grayscale control while the meshed shielding portions maintain high transparency. This spatial segmentation resolves the contradiction by distributing different functional requirements to different sub-regions
Solution Approach 2:
The invention transitions from a uniform two-dimensional pixel structure to a multi-dimensional structure by adding vertical layering with the meshed shielding pattern. The meshed structure creates three-dimensional spatial arrangement where shielding portions and light-emitting portions are positioned at different heights and locations, enabling simultaneous optimization of transparency and luminance in different spatial dimensions
3Illumination intensity
If the area of light-emitting devices is increased to improve luminance output, then the transparency of the display is reduced
Solution Approach 1:
The meshed shielding pattern segments each pixel into multiple light-emitting devices positioned in different locations rather than using a single large light-emitting area. This segmentation allows the total light-emitting area to be distributed across multiple smaller devices, maintaining sufficient luminance output while preserving transparency through the meshed structure
Solution Approach 2:
The invention applies local quality by positioning light-emitting devices in specific locations within pixel regions where they can provide sufficient luminance output, while meshed shielding portions occupy other locations to maintain transparency. Each local area is optimized for its specific function: light-emitting portions for luminance and shielding portions for transparency
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 design increases transparency and reduces power consumption while enhancing the reliability and quality of deep color displays by optimizing the ratio of light-emitting device area to pixel region area and integrating solar cells for power generation.
Implementation Method 1
The solar cell is disposed on the second surface of the substrate and electrically connected to the second circuit layer
Implementation Method 2
The meshed shielding pattern is capable of converting light emitted from the light-emitting devices into photo-current
Implementation Method 3
The photo-sensors are capable of detecting light emitted from the light-emitting devices to monitor light output of the light-emitting devices
Data Source
AI summary
A display panel comprising a substrate, a meshed shielding pattern, a plurality of light-emitting devices and a solar cell is provided. The substrate has a first surface and a second surface opposite to the first surface, the substrate comprises a first circuit layer disposed over the first surface and a second circuit layer disposed over the second surface. The meshed shielding pattern is disposed on first surface of the substrate to define a plurality of pixel regions over the substrate. The light-emitting devices are disposed on the first surface of the substrate and electrically connected to the first circuit layer, and at least one of the light-emitting devices is disposed in one of the pixel regions. The solar cell is disposed on the second surface of the substrate and electrically connected to the second circuit layer.