Transparent Display Substrate with Adjustable Transparency
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Solution Overview
Problem
Conventional transparent display devices have non-adjustable transparency, which cannot meet the diverse needs of various conditions.
Innovation Solution
A transparent display substrate with a base substrate and pixel units, featuring a first light emitting layer in a transparent region and electrodes on either side, where the brightness of the light emitting layer is adjusted by varying the voltage difference between the electrodes, allowing for adjustable transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light emitting layer is placed in the transparent region to enable display function, then the display capability is improved, but the transparency of the transparent region deteriorates
Solution Approach 1:
The patent applies dynamics by making the transparency of the transparent region adjustable through voltage control. The light emitting layer's brightness can be dynamically adjusted by changing the voltage difference between the first and second electrodes, allowing the transparency to vary from high (when not emitting light) to low (when emitting light), thus resolving the contradiction between display capability and transparency
Solution Approach 2:
The patent changes the physical parameter of the light emitting layer by applying different voltages. By adjusting the voltage difference between the first electrode and second electrode, the brightness of the light emitting layer is controlled, which directly changes the transparency parameter of the transparent region, enabling dynamic adaptation between display function and transparency
2Adaptability or versatility
If voltage control is implemented to adjust brightness, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing the first electrode to serve multiple functions: it acts as both the first electrode for the light emitting layer and extends into the display region to function as a voltage line. This multi-functionality reduces the need for separate components, thereby reducing device complexity while maintaining the voltage control capability for adjustable transparency
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 dynamic adjustment of transparency by changing the brightness of the light emitted by the first light emitting layer, thereby accommodating different usage conditions.
Implementation Method 1
a first light emitting layer is provided in the transparent region, and a first electrode is provided at a side of the first light emitting layer proximal to the base substrate and a second electrode is provided at a side of the first light emitting layer distal to the base substrate; a brightness of light emitted by the first light emitting layer is adjusted according to change in a difference between a first voltage and a second voltage loaded on the first electrode and the second electrode, respectively
Data Source
AI summary
A transparent display substrate and a driving method thereof, and a transparent display device are provided. The transparent display substrate includes a base substrate and pixel units which are located above the base substrate and arranged in an array, each of the pixel units comprises a display region and a transparent region; a first light emitting layer is provided in the transparent region, and a first electrode is provided at a side of the first light emitting layer proximal to the base substrate and a second electrode is provided at a side of the first light emitting layer distal to the base substrate; a brightness of light emitted by the first light emitting layer is adjusted according to change in a difference between a first voltage and a second voltage loaded on the first electrode and the second electrode, respectively.