Integrated Electroluminescent Display and Illuminator
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Solution Overview
Problem
Existing electroluminescent display and illuminating devices are separate entities, lacking the capability to simultaneously achieve display and illumination functions on different sides of the device, limiting their flexibility and thickness.
Innovation Solution
An electroluminescent display and illuminating device is designed by stacking layers of light-emitting devices, sharing an electrode in a laminated structure to enable display on one side and illumination on the other, with a thin film transistor array substrate, patterned electrodes, and a total reflection electrode to manage light emission and polarity connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate display device and illuminating device are used, then display function and illumination function can be achieved, but device thickness is increased and flexibility is reduced
Solution Approach 1:
The patent merges a display device and an illuminating device into a single integrated structure. The display device includes a first substrate with a first electrode and first light-emitting layer, while the illuminating device includes a second substrate with a second electrode and second light-emitting layer. These two functional devices are combined such that they share common structural elements (substrate, electrode, light-emitting layer), allowing both display and illumination functions to be achieved simultaneously within a single thin-profile device.
Solution Approach 2:
The integrated device structure serves multiple functions: the first light-emitting layer serves both as the light source for display function and contributes to overall illumination, while the second light-emitting layer provides additional illumination. The shared substrate and electrode structure universally supports both display and illumination operations, enabling the device to adapt to different functional requirements without increasing thickness.
2Adaptability or versatility
If separate display device and illuminating device are used, then display function and illumination function can be achieved, but device flexibility and shape design are limited
Solution Approach 1:
The patent merges a display device and an illuminating device into a single integrated structure. The display device includes a first substrate with a first electrode and first light-emitting layer, while the illuminating device includes a second substrate with a second electrode and second light-emitting layer. These two functional devices are combined such that they share common structural elements (substrate, electrode, light-emitting layer), allowing both display and illumination functions to be achieved simultaneously within a single thin-profile device.
Solution Approach 2:
The integrated device structure utilizes thin-film construction with flexible substrates that enable the device to be bent, folded, or curved. The first substrate and second substrate are designed as flexible thin films that maintain structural integrity while allowing various shape configurations. This flexibility enables the device to adapt to different mounting surfaces and design requirements without compromising the integrated display and illumination functions.
3Illumination intensity
If laminated light emission layers are used for white light OLED, then full color display is achieved, but device complexity increases
Solution Approach 1:
The patent merges a display device and an illuminating device into a single integrated structure. The display device includes a first substrate with a first electrode and first light-emitting layer, while the illuminating device includes a second substrate with a second electrode and second light-emitting layer. These two functional devices are combined such that they share common structural elements (substrate, electrode, light-emitting layer), allowing both display and illumination functions to be achieved simultaneously within a single thin-profile device.
Solution Approach 2:
The device is segmented into distinct functional layers: the first light-emitting layer for display function with specific color emission, and the second light-emitting layer for illumination function providing white light. This segmentation allows each layer to be optimized for its specific function while maintaining overall system simplicity through the shared substrate and electrode structure.
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
This configuration allows for reduced device thickness, enabling flexible shape design and simultaneous display and illumination functions, enhancing the device's application and usability.
Implementation Method 1
An organic light-emitting diode (OLED) is a thin film structure formed on a substrate, and generally includes an anode, a cathode, and an organic light-emitting unit sandwiched between the two electrodes. Driven by an external voltage, holes and electrons of the organic light-emitting unit are injected from the anode and the cathode to an organic semiconductor, respectively, and transmitted to a light emission layer to form exciton radiation on a luminescent material.
Data Source
AI summary
An electroluminescent display and illuminating device and a manufacturing method thereof are provided. Layers of light-emitting devices of an electroluminescent display and an electroluminescent illuminator are assembled, and the two devices share an electrode in a middle of a laminated structure, thereby realizing a display function on one side of the device and realizing a illumination function on the other side of the device, so that a shape design of a product can be more flexible.