Composite optical film and the method to make the same

TWI941202BActive Publication Date: 2026-10-01UBRIGHT OPTRONICS CORP
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
TW114118189
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-03-24
Filing Date
2023-03-23
Publication Date
2026-10-01
Estimated Expiration
2043-03-22

AI Technical Summary

Technical Problem

Traditional light guide plates suffer from reduced brightness and uniformity due to light being reintroduced into the plate, and the use of segmented upper and lower prism films increases the overall thickness of the composite optical film.

Method used

A composite optical film structure comprising a first optical film with inverted prisms and a diffusion layer, a second optical film with prisms, and an adhesive layer bonding the two, which reduces thickness and enhances brightness and uniformity by using wavy or serrated prism edges and diffused particles.

Benefits of technology

The composite optical film achieves higher brightness, reduced thickness, and improved light uniformity by minimizing light reintroduction and optimizing film structure, resulting in superior brightness and coverage characteristics.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure TWG2TB001913836_001
    Figure TWG2TB001913836_001
  • Figure TWG2TB001913836_002
    Figure TWG2TB001913836_002
  • Figure TWG2TB001913836_003
    Figure TWG2TB001913836_003
Patent Text Reader

Abstract

A composite optical film includes: a first optical film, a first substrate; a plurality of inverted prisms disposed on a lower surface of the first substrate; and a first diffusion layer disposed on an upper surface of the first substrate; a second optical film including: a second substrate, wherein the first plurality of prisms are located on an upper surface of the second substrate; a third substrate, wherein the second plurality of prisms are located on an upper surface of the third substrate, wherein the third substrate is located above the second substrate; and an adhesive layer disposed between a lower surface of the third substrate and an upper surface of the first plurality of prisms, wherein the second optical film is disposed on the first optical film.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Light source module, display device and light steering film

    CN106997121B

  • Multi-layer optical construction of quantum dot films for improved conversion efficiency and color gamut

    CN110800112A

  • Optical film and backlight module using the same

    TW201418788A

  • Multi-function composite optical film

    TW201445174A

  • Optical film and display device having the same

    TW201504690A