Display device enabling external objects to be shown therein
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices face issues with reduced light transmittance when attempting to show external objects, as the stacked structure compromises both light transmittance and mirror effect, requiring additional light sources and failing to enhance transmittance while maintaining mirror functionality.
Innovation Solution
A display device design featuring a main body with a space between the backlight module and display module, utilizing a first optical film for light projection and reflection, and a second optical film for ambient light reflection, allowing for improved light transmittance and maintaining a mirror effect by separating these components and incorporating reflective layers on inner walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the backlight module and display structure are closely arranged in a stacked structure, then the device structure is compact, but the light transmittance is insufficient and external objects cannot be clearly shown
Solution Approach 1:
The device is segmented into distinct functional modules: backlight module, display module, and mirror module, arranged in sequence along the light propagation direction. This segmentation allows each module to perform its function optimally while maintaining overall compactness through modular integration.
Solution Approach 2:
The patent transitions from a two-dimensional stacked arrangement to a three-dimensional spatial configuration by introducing a mirror module that reflects ambient light from the front side through the display module to the observer. This adds a new dimension (light reflection path) to the traditional backlight illumination approach, enabling both high transmittance and compact structure.
2Adaptability or versatility
If the distance between the backlight module and display structure is lengthened to accommodate external objects, then external objects can be disposed therein, but the light transmittance becomes insufficient
Solution Approach 1:
The display module serves multiple functions: it displays images generated by the backlight module, allows external objects to be viewed when the display is off, and works in conjunction with the mirror module to provide ambient light reflection. This multi-functionality eliminates the need for additional light sources while accommodating external objects.
Solution Approach 2:
The mirror module acts as an intermediary that captures ambient light from the front side and reflects it through the display module to the observer. This intermediary component enables the system to maintain high light transmittance and provide mirror effect without requiring additional light sources or increasing the distance between modules.
3Adaptability or versatility
If the display device is provided with a mirror effect, then ambient light can be reflected, but the brightness and transmittance are compromised
Solution Approach 1:
The display module can dynamically switch between different states: displaying images when needed and becoming transparent to allow mirror effect when not in use. This dynamic switching capability enables the device to provide both mirror effect and high brightness/transmittance at different times without compromising either 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 enables clear display of external objects with enhanced light transmittance and retention of the mirror effect, avoiding the trade-off between transmittance and reflectance seen in conventional devices, while allowing for the accommodation of external objects within the device.
Implementation Method 1
The first optical film is disposed for a light directly projected by the backlight module and a light reflected by the main body to pass through
Implementation Method 2
The second optical film is disposed for a light from the transparent display structure to pass through, and reflects an ambient light outside the main body
Implementation Method 3
at least one of the plurality of inner walls is provided with a reflective layer
Data Source
AI summary
A display device enabling external objects to be shown therein comprises a main body formed with a space, a backlight module disposed in the space and a display module disposed in the space. The backlight module comprises a light projection surface, the display and backlight modules are separately disposed by a spacing for at least one external object to locate therein. The display module comprises a transparent display structure, a first optical film disposed on one side of the transparent display structure facing the surface, and a second optical film disposed on the other side. The first optical film enables a light projected by the backlight module and a light reflected by the main body to pass through. The second optical film enables a light from the transparent display structure to pass through, and reflects an ambient light outside the main body.