Transparent Display Panel Layout for Thin Double-Sided Imaging
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Solution Overview
Problem
Current transparent display panels with multiple images are bulky and heavy, and their light transmittance is limited, making them less useful for applications requiring thinness and clarity.
Innovation Solution
A transparent display panel design incorporating a light transmissive substrate with top-emitting and bottom-emitting micro light emitting diodes, along with a light shielding layer to reduce interference and enhance light transmittance, allowing for thinner and more efficient multi-image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two display panels are combined to provide double-sided display function, then the display panel can show multiple images from different surfaces, but the thickness and weight of the display module become considerably huge
Solution Approach 1:
The patent combines top-emitting and bottom-emitting micro light emitting diodes on a single light transmissive substrate to achieve double-sided display functionality. This merging approach eliminates the need for two separate display panels, thereby reducing the overall thickness and weight while maintaining the multi-image display capability.
Solution Approach 2:
The patent utilizes the z-dimension (thickness direction) by positioning top-emitting and bottom-emitting micro light emitting diodes on opposite sides of the light transmissive substrate. This dimensional arrangement allows both display surfaces to function simultaneously without requiring stacking multiple panels, thus achieving thinness while providing double-sided display.
2Adaptability or versatility
If two display panels are combined to provide double-sided display function, then the display panel can show multiple images from different surfaces, but the weight of the display module becomes considerably huge
Solution Approach 1:
The patent merges top-emitting and bottom-emitting micro light emitting diodes onto a single light transmissive substrate, eliminating the need for two separate display panels. This consolidation significantly reduces the overall weight while maintaining the double-sided display function.
3Adaptability or versatility
If two display panels are combined to provide double-sided display function, then the display panel can show multiple images from different surfaces, but the light transmittance may be limited
Solution Approach 1:
The patent applies light shielding components locally at specific positions around the micro light emitting diodes to control light emission directions. This localized light management allows light to transmit effectively through the light transmissive substrate while preventing unwanted light interference, thereby maintaining high light transmittance for the transparent display function.
Solution Approach 2:
The light shielding component acts as an intermediary element that manages light interaction between the micro light emitting diodes and the light transmissive substrate. It directs light appropriately to ensure both display surfaces receive sufficient light while maintaining the transparency of the substrate.
4Speed
If top-emitting micro light emitting diodes are disposed on the surface of the light transmissive substrate, then light can be emitted toward one direction, but light emitted toward the light transmissive substrate causes interference
Solution Approach 1:
The patent converts the potentially harmful light interference into a beneficial directional light emission by using light shielding components. These components block light in unwanted directions while allowing and even enhancing light emission in the desired direction, thereby transforming the interference problem into improved light control and 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
The solution reduces the thickness and weight of the display panel while maintaining or improving light transmittance, enabling clearer and more versatile multi-image displays.
Implementation Method 1
the light-shielding component is disposed on the upper surface to shield the light emitted by the bottom-emitting micro light emitting diodes toward the upper surface
Implementation Method 2
the light shielding layer is disposed on the surface of the light transmissive substrate, and a portion of the light shielding layer is disposed between the top-emitting micro light emitting diode and the light transmissive substrate to shield light emitted from the top-emitting micro light emitting diodes toward the light transmissive substrate
Implementation Method 3
a plurality of top-emitting micro light emitting diodes, a plurality of bottom-emitting micro light emitting diodes
Implementation Method 4
Each of the micro light emitting diodes has an epitaxial structure
Data Source
AI summary
A transparent display panel with a light-transmitting substrate, a plurality of top-emitting micro light emitting diodes, a plurality of bottom-emitting micro light emitting diodes, and a light shielding layer. The light transmissive substrate has a surface. These top-emitting micro light emitting diodes and these bottom-emitting micro light emitting diodes are disposed on the surface of the light transmissive substrate. The bottom-emitting micro light emitting diodes has an epitaxial structure and a light shielding member, the epitaxial structure has a pair of upper and lower surfaces on the opposite sides, the lower surface faces toward the light transmissive substrate, and the light shielding member is disposed on the upper surface to shield the light emitted by the bottom-emitting micro light emitting diodes towards the upper surface.