English

A Large Angle Color Holographic 3D Display System Based on Color LCD Grating

75
2024-01-24 11:52:41
See translation

Holographic display technology provides the ultimate solution for true 3D display, with enormous potential in augmented reality and virtual reality. However, the color and viewing angle of holographic 3D displays mainly depend on the wavelength of the laser and the pixel size of the current spatial light modulator. The inevitable color difference and narrow viewing angle in conventional systems seriously affect the holographic display effect, hindering the application of holographic 3D display in many fields.

In a new paper published in "Light: Science and Applications", a group of scientists led by Professor Qiang Hua Wang from Beihang University in China and their colleagues have developed a 3D display system with a large viewing angle based on color liquid crystal gratings. The proposed system displays a color perspective of 50.12 º without any color difference.

Beihang researchers use specially designed color liquid crystal gratings with the same diffraction angle to perform secondary diffraction on incident RGB light, expanding the viewing angle through secondary diffraction. Color liquid crystal gratings have three different spacing regions in a liquid crystal unit, corresponding to incident light of different wavelengths. In addition, a method for generating chromatic aberration free holograms has been proposed, which, in conjunction with color liquid crystal gratings, achieves large angle color display. By using the proposed system, 3D color objects can be vividly reconstructed without color difference and viewed from a large perspective.

The reported system solves the problems of small viewing angle and severe color difference in traditional holographic 3D display systems, and has good display effects and broad application prospects in medical, industrial and other fields.

Source: Laser Net

Related Recommendations
  • Micro active vortex laser

    Recently, Dong Yibo, from the Photonic Chip Research Institute of Shanghai University of Technology, published his research findings titled "Nanoprinted Diffractive Layer Integrated Vertical Cavity Surface Emitting Vortex Lasers with Scalable Topological Charge" as the first author in the internationally renowned journal Nano Letters.This achievement was jointly completed by the team of academicia...

    2023-10-24
    See translation
  • LightSolver announces the launch of the LPU100 laser computing system

    LightSolver, a laser based computing company, announced that it is a breakthrough in quantum inspired high-performance computing.Its LPU100 system utilizes the power of 100 lasers to solve optimization problems, challenging the processing time of quantum and supercomputers. The laser array of LPU100 represents 100 continuous variables and can solve up to 120100 combinations of problems, enabling ...

    2024-03-22
    See translation
  • Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity

    Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity - a quantum cavity is an optical device composed of two excellent small mirrors that can capture light in a small area for a long time.This model and its predictions can be used for the next generation of superradiance lasers. They can be used and observed in cutting-edge cavity/wa...

    2024-02-21
    See translation
  • Research and investigate the thermal effects of 3D stacked photons and electronic chips

    Hybrid 3D integrated optical transceiver. (A, B) Test setup: Place the photon chip (PIC) on the circuit board (green), and glue the electronic chip (EIC) onto the top of the photon chip. (C) It is the cross-section of the EIC-PIC component with micro protrusions. (D) Display the mesh of the finite element model.The latest progress in artificial intelligence, more specifically, is the pressure plac...

    2023-12-09
    See translation
  • Emerging laser technologies for precise manufacturing of multifunctional nanomaterials and nanostructures

    The use of photons to directly or indirectly drive chemical reactions has fundamentally changed the field of nanomaterial synthesis, leading to the emergence of new sustainable laser chemistry methods for manufacturing micro - and nanostructures. The incident laser radiation triggers complex interactions between chemical and physical processes at the interface between solid surfaces and liquid or ...

    2024-08-05
    See translation