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LEF   (Luminance Enhancement FilmTM)

LEF
 (Luminance Enhancement FilmTM)

UBright’s first product developed in 2004, micro replicated prismatic structures collimate light to increase luminance. A single sheet provides up to 65% increase in luminance while two sheets crossed at 90° can provide even more. This increased luminance can be translated into power savings.

Application

Mobile

Tablet

Auto

Notebook

Monitor

Public Display

Features

  • High Gain, Super High Gain
  • Ball Drop Resistance
  • Reduced Mura/Moire
  • Anti-Blocking/Anti Newton Ring
  • Anti-Yellowing
  • High Thermal Reliability
  • Wide View Angle
  • Customization

Product Specification

  • Delivery in roll or piece form

LLEF   (Laminated Luminance Enhancement Film)

LEFF
(Laminated Luminance Enhancement Film)

Developed in 2013, we combine our different product lines to meet the needs of our customers. Laminated luminance enhancement film is a multi-functional product that laminates two or more films to achieve a thinner product with easier processing for users. Users can drop in our films with a decrease in takt time.

Application

Mobile

Tablet

Auto

Notebook

Monitor

Public Display

Features

  • High Gain, Super High Gain
  • Ball Drop Resistance
  • Reduced Mura/Moire
  • Anti-Blocking/Anti Newton Ring
  • Anti-Yellowing
  • High Thermal Reliability
  • Wide View Angle
  • Customization

Product Specification

  • Delivery in roll or piece form

QLEF​   (Quantum Luminance Enhancement Film)

QLEF
(Quantum Luminance Enhancement Film)

QLEF is an optical film that is installed in a LCD backlight to increase a display’s color gamut. The film is manufactured using high precision coating and is designed to achieve high color gamut levels of LCD displays. When light passes through the film, vibrant hues are created by converting about 2/3 blue light emitted from a backlight unit to red and green light, which are then combined with the residual blue light to create a white light. Our film achieves a wide Rec. 2020 coverage that results in a greatly enriched array of perceivable display colors.

Application

LCD Panel Spectral Output Without QLEF

LCD Panel Spectral Output With QLEF

Features

High Stability and Diffusion Performance

Our film provides high efficiency in converting absorbed light into emitted light, yet at the same time, is stable under both light and dark testing environments.  In addition, our film has good defect and luminescence source hiding abilities thanks to our long-term experience and knowledge with optical diffusion design.  

Wide Rec. 2020 Coverage and Energy Savings

Our film achieves a wide Rec. 2020 coverage that results in a greatly enriched array of perceivable display colors required for High Dynamic Range (HDR) media. Due to purer color components, less light is filtered out by a display’s color filter to achieve a brighter display. Moreover, compared to other wide color gamut solutions, our film can be pared with a more transmissive color filter for even more power savings.

White Point Control and Narrow Bezel Design

Our film is highly customizable for a controlled white point, and with minimal edge ingression a narrow bezel design is possible.

Product Specification

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