Double-Faced Display Panel Reflection Unit Light Utilization
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Solution Overview
Problem
Double-faced display devices face challenges with low light utilization and poor contrast between display brightness and ambient light, making it difficult to recognize images, especially in bright environments.
Innovation Solution
A double-faced display panel design featuring a first and second display sub-unit arranged back to back with a reflection unit between them, which reflects emitted light back to each sub-unit and blocks ambient light, improving light utilization and contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double-faced display device is used to enable information display in multiple rooms, then the versatility and information accessibility are improved, but the light utilization efficiency deteriorates and contrast between display brightness and ambient light decreases
Solution Approach 1:
The display device is divided into two independent display sub-units (first and second display sub-units) that can be arranged back-to-back. Each sub-unit has its own light-emitting components and can operate independently, allowing the system to provide display functions in multiple directions while enabling separate optimization of light utilization for each side.
Solution Approach 2:
A reflection unit is introduced as an intermediary component between the two display sub-units. This reflection unit redirects light that would otherwise be lost from the non-display surfaces back into the display sub-units, improving light utilization efficiency without compromising the dual-sided display functionality.
2Adaptability or versatility
If a double-faced display device is used for multi-room information display, then the adaptability is improved, but the contrast between display brightness and ambient light deteriorates
Solution Approach 1:
The display system is segmented into two independent display sub-units with separate light-emitting and non-display surfaces. This segmentation allows each sub-unit to be optimized for its specific viewing direction, improving contrast performance on each side while maintaining overall versatility.
Solution Approach 2:
The reflection unit acts as a mediator that selectively manages light paths. It reflects ambient light and enhances display brightness contrast by directing light appropriately, thereby improving the contrast between display brightness and ambient light while preserving the multi-room display capability.
3Ease of operation
If light is emitted from display sub-units in a double-faced configuration, then the display function is achieved, but light loss occurs at the non-display surfaces
Solution Approach 1:
The reflection unit converts what would be wasted light (a harmful loss) into a beneficial resource by reflecting it back into the display sub-units. This transforms light loss into light reuse, improving overall light utilization efficiency while maintaining the ease of dual-sided display operation.
Solution Approach 2:
The reflection unit creates a feedback mechanism where light that escapes from the non-display surfaces is captured and fed back into the display sub-units. This feedback loop recovers otherwise lost light energy, reducing light loss while preserving the display function.
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 enhances light utilization and contrast, resulting in a better display effect and improved visibility even under bright conditions, while also conserving energy.
Implementation Method 1
a reflection unit, arranged between the first display sub-unit and the second display sub-unit, wherein the reflection unit is configured to reflect displaying light emitted from the first display sub-unit back to the first display sub-unit and reflect displaying light emitted from the second display sub-unit back to the second display sub-unit
Data Source
AI summary
A double-faced display panel and a double-faced display device comprising the double-faced display panel are provided. The double-faced display panel comprises: a first display sub-unit, provided with a first display surface and a first non-display surface opposite to each other; a second display sub-unit, provided with a second display surface and a second non-display surface opposite to each other, and arranged back to back with the first display sub-unit, the second non-display surface facing the first non-display surface; and a reflection unit, arranged between the first display sub-unit and the second display sub-unit. The reflection unit is configured to reflect display light emitted from the first display sub-unit back to the first display sub-unit and reflect display light emitted from the second display sub-unit back to the second display sub-unit.