20240038927. RGB MONOLITHIC INTEGRATED HIGH PURITY MICROLED DISPLAY DEVICE simplified abstract (Plessey Semiconductors Ltd)

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RGB MONOLITHIC INTEGRATED HIGH PURITY MICROLED DISPLAY DEVICE

Organization Name

Plessey Semiconductors Ltd

Inventor(s)

Jun-Youn Kim of Plymouth Devon (GB)

Anwer Saeed of Plymouth Devon (GB)

Andrea Pinos of Plymouth Devon (GB)

Mohsin Aziz of Plymouth Devon (GB)

Ian Murray of Plymouth Devon (GB)

Abdul Shakoor of Plymouth Devon (GB)

RGB MONOLITHIC INTEGRATED HIGH PURITY MICROLED DISPLAY DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240038927 titled 'RGB MONOLITHIC INTEGRATED HIGH PURITY MICROLED DISPLAY DEVICE

Simplified Explanation

The abstract describes a colour conversion resonator system that includes multiple partially reflective regions and resonator cavities to convert light of different primary peak wavelengths. The system includes a first partially reflective region that transmits light of a first primary peak wavelength and reflects light of a second primary peak wavelength. A second partially reflective region transmits light of the first and second primary peak wavelengths and reflects light of a third primary peak wavelength. A third partially reflective region reflects light of the third primary peak wavelength.

The system also includes a first colour conversion resonator cavity that receives input light of the first primary peak wavelength and converts some of it to light of the second primary peak wavelength. The resonator cavity is arranged such that the second primary peak wavelength resonates in it, and the resonant light is output through the second partially reflective region. Similarly, a second colour conversion resonator cavity receives input light of the second primary peak wavelength and converts some of it to light of the third primary peak wavelength. The resonator cavity is arranged such that the third primary peak wavelength resonates in it, and the resonant light is output through the third partially reflective region.

The first and second resonator cavities partially overlap, defining a non-overlapping portion and an overlapping portion. This arrangement creates a first light emitting surface that provides resonant light of the second primary peak wavelength and a second light emitting surface that provides resonant light of the third primary peak wavelength.

Potential applications of this technology:

  • Display devices: The colour conversion resonator system can be used in display devices to enhance the colour gamut and improve colour accuracy.
  • Lighting: The system can be used in lighting applications to produce light of specific colours with high efficiency and accuracy.
  • Imaging: The technology can be applied in imaging systems to improve colour reproduction and image quality.

Problems solved by this technology:

  • Limited colour gamut: The system allows for the conversion of light of one primary peak wavelength to another, expanding the range of colours that can be produced.
  • Inefficient colour conversion: The resonator cavities efficiently convert light of one primary peak wavelength to another, reducing energy loss and improving overall efficiency.
  • Colour accuracy: The system provides precise control over the conversion of light, resulting in accurate and consistent colour reproduction.

Benefits of this technology:

  • Expanded colour range: The system enables the production of a wider range of colours, enhancing visual experiences in various applications.
  • Energy efficiency: The efficient conversion of light reduces energy consumption, making the technology more environmentally friendly.
  • Improved colour accuracy: The precise control over colour conversion ensures accurate and consistent colour reproduction, enhancing the quality of displays, lighting, and imaging systems.


Original Abstract Submitted

a colour conversion resonator system, comprising: a first partially reflective region configured to transmit light of a first primary peak wavelength and to reflect light of a second primary peak wavelength; a second partially reflective region configured to at least partially transmit light of the first and second primary peak wavelengths and to reflect light of a third primary peak wavelength; a third partially reflective region configured to at least partially reflect light with the third primary peak wavelength; a first colour conversion resonator cavity arranged to receive input light with the first primary peak wavelength through the first partially reflective region and to convert at least some of the light of the first primary peak wavelength to provide light of the second primary peak wavelength, wherein the first colour conversion resonator cavity is arranged such that the second primary peak wavelength resonates in the first colour conversion resonator cavity and resonant light with the second primary peak wavelength is output through the second partially reflective region; and a second colour conversion resonator cavity arranged to receive input light comprising the second primary peak wavelength through the second partially reflective region and to convert at least some of the second primary peak wavelength to provide light of the third primary peak wavelength, wherein the second colour conversion resonator cavity is arranged such that the third primary peak wavelength resonates in the second colour conversion resonator cavity and resonant light with the third primary peak wavelength is output through the third partially reflective region, wherein the first colour conversion resonator cavity and the second resonator cavity are arranged partially to overlap to provide a non-overlapping portion and an overlapping portion thereby to define a first light emitting surface and a second light emitting surface respectively, wherein the first light emitting surface is arranged to provide resonant light of the second primary peak wavelength and the second light emitting surface is arranged to provide resonant light of the third primary peak wavelength.