Transparent Display Panel With Adjustable Transmittance and Dual Backlights
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Solution Overview
Problem
Current transparent displays lack uniform light sources, making it difficult to see images displayed on them and reducing color reproduction, especially when trying to showcase objects behind the display.
Innovation Solution
A display apparatus with a transparent mode and opaque mode, featuring a transparent display panel, a first light source behind the panel, a transparency adjusting unit with a mesh-type structure, and a second light source, controlled by a controller to adjust transparency and lighting for optimal image output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transmittance is increased to showcase internal objects, then transparency is improved, but image display quality and color reproduction are reduced
Solution Approach 1:
The transparent display incorporates adjustable transmittance capability, allowing dynamic switching between high-transparency mode (for viewing internal objects) and image display mode (with optimized transmittance for color reproduction). This dynamic adjustment resolves the contradiction by adapting the display characteristics to different operational requirements.
Solution Approach 2:
The display system is designed to perform multiple functions: it can display images with good color reproduction when needed, and simultaneously function as a transparent window for viewing internal objects. The multi-functional design integrates both image display and transparent viewing capabilities within a single system, eliminating the need to choose between the two functions.
2Adaptability or versatility
If a transparent display is used to see internal objects, then transparency is achieved, but accurate image output is compromised
Solution Approach 1:
The display system dynamically adjusts its operational mode based on requirements, switching between transparent viewing mode (optimized for seeing internal objects) and image display mode (optimized for accurate image output). This dynamic adaptability allows the system to maintain high reliability for both functions at different times.
Solution Approach 2:
The display adjusts key parameters such as transmittance and backlight intensity to optimize performance for different functions. When accurate image output is required, parameters are adjusted to enhance image quality; when transparent viewing is needed, parameters are modified to maximize visibility of internal objects. This parameter adjustment resolves the contradiction between adaptability and reliability.
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
Enables clear visibility of internal objects in transparent mode and accurate, high-quality image output in opaque mode, similar to existing LCD displays, with adjustable transparency to suit different usage purposes.
Implementation Method 1
A first surface of the transparency adjusting unit may include a white material such that the light output from the first light source is reflected by the first surface
Implementation Method 2
The transparency adjusting unit may absorb the light output from the second light source. A second surface of the transparency adjusting unit may include a black material such that the light output from the second light source is absorbed by the second surface
Data Source
AI summary
Provided is a display apparatus having a transparent mode for outputting an internal object and a related image when the internal object is seen through a transparent display and an opaque mode for outputting an image having the same level as in an existing LCD display when an accurate image needs to be output on the display. A display apparatus according to an embodiment may include a main body, and a display unit coupled to the main body and configured to implement at least one of a transparent mode and an opaque mode, wherein the display unit includes a transparent display panel exposed at a front surface of the main body, a first light source disposed behind the transparent display panel, a transparency adjusting unit disposed behind the first light source, and a second light source disposed behind the transparency adjusting unit.