18511449. PHASE DIFFERENCE FILM, CIRCULARLY POLARIZING PLATE, AND DISPLAY DEVICE simplified abstract (FUJIFILM CORPORATION)

From WikiPatents
Jump to navigation Jump to search

PHASE DIFFERENCE FILM, CIRCULARLY POLARIZING PLATE, AND DISPLAY DEVICE

Organization Name

FUJIFILM CORPORATION

Inventor(s)

Yuta Takahashi of Kanagawa (JP)

Yusuke Furuki of Kanagawa (JP)

Hiroki Kuwahara of Kanagawa (JP)

PHASE DIFFERENCE FILM, CIRCULARLY POLARIZING PLATE, AND DISPLAY DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18511449 titled 'PHASE DIFFERENCE FILM, CIRCULARLY POLARIZING PLATE, AND DISPLAY DEVICE

Simplified Explanation

The patent application describes a phase difference film that exhibits a small change in tint when applied to a display device as a circularly polarizing plate in combination with a polarizer, and observed from an oblique direction at all azimuthal angles. The film consists of optically anisotropic layers X, Y, and Z, with layer X being an A-plate, and layers Y and Z formed by fixing first and second liquid crystal compounds, respectively, twist-aligned along a helical axis extending in a thickness direction. One of the first and second liquid crystal compounds is rod-like, while the other is disk-like. The in-plane slow axis of layer X is parallel to an in-plane slow axis on a surface of layer Y on the layer X side.

  • The phase difference film includes optically anisotropic layers X, Y, and Z, with specific characteristics for each layer.
  • The film is designed to produce a small change in tint when applied to a display device and viewed from oblique angles.

Potential Applications

The technology could be applied in:

  • Display devices
  • 3D imaging systems
  • Virtual reality headsets

Problems Solved

The technology addresses issues related to:

  • Viewing angle limitations
  • Color distortion in display devices

Benefits

The benefits of this technology include:

  • Improved viewing experience
  • Enhanced color accuracy
  • Increased display device performance

Potential Commercial Applications

The technology could find commercial applications in:

  • Consumer electronics
  • Automotive displays
  • Medical imaging devices

Possible Prior Art

One possible prior art for this technology could be the use of liquid crystal compounds in display devices to control light polarization and phase difference.

Unanswered Questions

How does this technology compare to existing phase difference films on the market?

The article does not provide a direct comparison with other phase difference films currently available.

What are the potential manufacturing challenges associated with producing this phase difference film?

The article does not address the specific manufacturing challenges that may arise in producing this technology.


Original Abstract Submitted

A phase difference film includes a small change in tint when the film is applied to a display device as a circularly polarizing plate in combination with a polarizer display device being observed from an oblique direction at all azimuthal angles. The film includes optically anisotropic layers X, Y, and Z in this order, in which layer X is an A-plate, and layers Y and Z are formed by fixing a first and second liquid crystal compound, respectively, twist-aligned along a helical axis extending in a thickness direction, one of the first and second liquid crystal compounds are rod-like liquid crystal compounds, the other first and the second liquid crystal compounds are disk-like liquid crystal compounds, and an in-plane slow axis of layer X is parallel to an in-plane slow axis on a surface of layer Y on layer X side.