Overlapping Display Panels with Aperture Ratio Optimization
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Solution Overview
Problem
Existing display devices face challenges in increasing size, suppressing display unevenness, and displaying images on curved surfaces while maintaining thinness and low weight.
Innovation Solution
A display device comprising multiple overlapping display panels with specific regions for transmitting and blocking visible light, where the aperture ratio of overlapping pixels is optimized to ensure seamless image display and reduced visibility of seams, using flexible substrates and light-blocking layers to achieve these goals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display device size is increased, then the display area is enlarged, but display unevenness occurs and weight increases
Solution Approach 1:
The display device is divided into multiple display panels that can be independently manufactured and then assembled together. Each panel maintains uniform display characteristics, while the collective arrangement achieves the desired large display area without introducing unevenness across the entire display surface.
Solution Approach 2:
Multiple display panels are arranged in an overlapping configuration where smaller panels are positioned within or adjacent to larger panels. This nesting arrangement allows for scalable display area expansion while maintaining consistent display quality across all panels through optimized aperture ratios and light transmission characteristics.
2Area of stationary object
If the display device size is increased, then the display area is enlarged, but weight increases
Solution Approach 1:
The display device is segmented into multiple separate panels, each with its own lightweight substrate and structure. This segmentation allows the device to be assembled from multiple light components rather than constructing a single heavy large-scale display, thereby reducing overall weight while achieving the required display area.
3Length of stationary object
If the display device is made thinner, then the device thickness is reduced, but manufacturing precision becomes more difficult to maintain
Solution Approach 1:
The thin display device is constructed from multiple segmented panels, each with controlled thickness. By assembling these pre-fabricated thin panels rather than manufacturing a single thick structure, the device achieves overall thinness while each panel's manufacturing precision is maintained through independent production processes.
4Area of stationary object
If multiple display panels are overlapped, then the display area is enlarged, but seams become visible
Solution Approach 1:
The overlapping regions of adjacent display panels are designed with specific local characteristics, including optimized aperture ratios and light transmission properties. By adjusting the optical characteristics of pixels in overlapping areas, the seams between panels are minimized or made invisible, creating a seamless display appearance across the entire enlarged display area.
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 allows for larger, thinner, and lighter display devices with reduced display unevenness and the ability to display images on curved surfaces, enhancing image quality and flexibility.
Implementation Method 1
The third region has a function of transmitting visible light
Implementation Method 2
The fourth region has a function of blocking visible light
Data Source
AI summary
To provide a display device that is suitable for increasing in size. To provide a display device in which display unevenness is suppressed. In a display device, a plurality of display panels are arranged to partly overlap one another. In two of the overlapping display panels, a display panel positioned on the display surface side includes a region transmitting visible light that is adjacent to a display portion, and the region transmitting visible light overlaps with a pixel of a display panel positioned on the lower side. Furthermore, in at least a display portion of the display panel placed on the lower side, an aperture ratio of the pixel overlapping with the region transmitting visible light of the display panel on the upper side is higher than an aperture ratio of another pixel.