Light guide structure, backlight module, and display device

  • US 9,897,741 B2
  • Filed: 11/23/2015
  • Issued: 02/20/2018
  • Est. Priority Date: 06/19/2015
  • Status: Active Grant
First Claim
Patent Images

1. A light guide structure comprising:

  • a light guide plate, comprising a light-exiting surface and a reflection surface that are opposite to each other and a side surface connecting the light-exiting surface with the reflection surface, and a material of the light guide plate being an isotropic material;

    a reflection type brightness enhancement film, being disposed at a side where the light-exiting surface of the light guide plate is located;

    a quarter wavelength plate, being disposed between the light-exiting surface of the light guide plate and the reflection type brightness enhancement film, with an angle of 45 degrees existing between a slow axis of the quarter wavelength plate and a transmission axis of the reflection type brightness enhancement film; and

    a reflection film, being disposed at a side where the reflection surface of the light guide plate is located.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×