Double-Sided Display Panel with Shared Light Source
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Solution Overview
Problem
Current double-sided display devices have a complex structure and large volume due to the need for two separate display screens, which fails to meet the requirements of a light, thin, and small form factor.
Innovation Solution
A double-sided display panel is designed with a light-emitting module between two conversion panels, each equipped with blocking layers and conversion patterns that allow for single-sided or double-sided display by controlling light emission and color conversion, simplifying the structure while providing a light source for both panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate display screens are used to achieve bidirectional display, then display functionality on both sides is improved, but device volume and structural complexity increase
Solution Approach 1:
The patent merges two separate display screens into a single integrated display device with a shared light source. The light-emitting module is positioned between two conversion panels, allowing one light source to illuminate both display surfaces simultaneously, thereby reducing overall device volume while maintaining bidirectional display capability
Solution Approach 2:
The shared light-emitting module serves multiple functions: it provides illumination for both the first conversion panel and the second conversion panel. This multi-functional design eliminates the need for separate light sources for each display surface, reducing component count and device volume
2Adaptability or versatility
If two separate display screens are used to achieve bidirectional display, then display functionality on both sides is improved, but structural complexity increases
Solution Approach 1:
The patent combines two independent display systems into one integrated structure. The first conversion panel, second conversion panel, and shared light-emitting module form a unified assembly, eliminating the need for separate mounting structures, control circuits, and power supplies that would be required for two independent screens
Solution Approach 2:
The display device is segmented into functional layers: the light-emitting module as the light source, the first conversion panel for one display surface, and the second conversion panel for the other surface. This modular segmentation allows for simplified assembly and maintenance while reducing overall structural 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 enables a simple, thin, and small double-sided display device that can display images on both sides efficiently, meeting the development requirements for a light and thin form factor while maintaining high display contrast and image quality.
Implementation Method 1
The light-emitting module includes a plurality of light-emitting units, and the light-emitting module is configured to provide a light source for the first conversion panel and/or the second conversion panel
Implementation Method 2
The first blocking layer is configured to block light of a first color emitted from the light-emitting units
Implementation Method 3
the first conversion pattern is configured to perform color conversion on light penetrating the first blocking layer
Implementation Method 4
the second blocking layer is configured to block light of a second color emitted from the light-emitting units
Implementation Method 5
the second conversion pattern is configured to perform color conversion on light penetrating the second blocking layer
Data Source
AI summary
Provided are a double-sided display panel and display device. The double-sided display panel includes a light-emitting module, a first conversion panel and a second conversion panel, where the light-emitting module is placed between the first conversion panel and the second conversion panel, and the light-emitting module may provide light sources for the first conversion panel and the second conversion panel to cause the first conversion panel and/or the second conversion panel to display an image.