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Large scale transparency-adjustable mini-LED display with recoverable color gamut by a highly transparent
Optics Express
|October 27, 2022
Summary
A novel transparency-adjustable mini-LED display was developed using a transparent mini-LED screen and an electrochromic shutter. This technology enhances see-through display visibility in bright conditions and improves color gamut.
Area of Science:
- Display Technology
- Materials Science
- Optoelectronics
Background:
- Transparent displays offer unique see-through applications but struggle with visibility in high ambient light.
- Existing transparent displays often exhibit color shifts and limited adaptability to varying lighting conditions.
Purpose of the Study:
- To develop a transparency-adjustable mini-LED (TA-MLED) display for improved see-through applications.
- To enhance the visibility and color performance of transparent displays under strong illumination.
Main Methods:
- Construction of a TA-MLED display integrating a transparent mini-LED (T-MLED) screen with an electrochromic (EC) shutter.
- Optimization of the EC shutter's splicing and driving for accelerated response times.
- Characterization of the TA-MLED's transmittance modulation and color gamut performance.
Main Results:
- The EC shutter achieved 86.5% transmittance with minimal color shift.
- The TA-MLED's transmittance was adjustable from 3% to 60%.
- Color gamut significantly improved from 3.6% to 83.5% sRGB with the EC shutter under strong illumination.
Conclusions:
- The developed TA-MLED display effectively addresses visibility challenges in bright environments.
- The integration of an EC shutter enhances both the adaptability and color fidelity of transparent displays.
- This technology broadens the application scope of see-through display screens.
