Supercharge Your Innovation With Domain-Expert AI Agents!

Light-redirecting film containing optical modification layer

一种光重新定向、光学调整层的技术，应用在光学、光学元件、非线性光学等方向，能够解决光重新定向薄膜有限等问题，达到高亮度的效果

Inactive Publication Date: 2012-01-18
ROHM & HAAS DENMARK FINANCE
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light redirecting films used in the system are limited because there are only a small number of different light redirecting surface textures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light-redirecting film containing optical modification layer
  • Light-redirecting film containing optical modification layer
  • Light-redirecting film containing optical modification layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0114] In this example, several optically modifying layers were used to coat a polycarbonate substrate containing individual integrated optical elements measuring 1200 microns long by 35 microns wide by a height of is 27 microns, and the apex angle is about 90 degrees. A 13 inch wide microreplicated polycarbonate support (manufactured by Eastman Kodark, Rochester, NY) was coated to produce an enhanced wide angle appearance with a more slowly varying critical angle than the optic without the optical correction layer.

[0115] To prepare 1 kg of dispersion to be coated onto a microreplicated polycarbonate support, 988.3 g of water and 11.7 g of photographic gelatin, along with a small amount of surfactant (to aid in the microsphere coating process) were added to the Together. The entire dispersion was heated to 50°C.

[0116] The gelatin and matte microsphere dispersions were liquefied at 50 degrees Celsius (°C), coated onto microreplicated polycarbonate supports at a wet coat...

Embodiment 2—23

[0118] A 13 inch wide microreplicated polycarbonate support (manufactured by Eastman Kodark, Rochester, NY) was coated to create an enhanced wide-angle appearance.

[0119] A 1 kg dispersion of the gelatin and matte microsphere composition was prepared as follows. Starting with 702 grams of distilled water, an aqueous solution of homopolymer and gelatin was formed from 60 grams of photographic gelatin and 234 grams of methyl 2-methyl-2-acrylate (PMMA) (Example 2). Microscopic analysis indicated that the dispersion consisted of uniform 1.3 micron matte microspheres and an aqueous gelatin medium. As shown in Table 1, as the size of the matt microspheres increases or decreases, minor changes to the formulation are required. In addition, as the material composition of the matte microspheres changes as shown in Table 1, the formulation needs to be fine-tuned.

[0120] To prepare 1 kg of a dispersion to be coated onto a microreplicated polycarbonate support, 962 g of water and 11....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
visible light transmittanceaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

A light redirecting film comprises a light exit surface bearing (a) optical elements and (b) an optical modification layer containing microbeads and a binder disposed over the optical elements wherein said light redirecting film has an optical gain of at least 1.20.

Description

[0001] Cross References to Related Applications [0002] Reference is made to and claims priority to US Provisional Application Serial No. 60 / 833,713, filed July 27, 2006, the contents of which are incorporated herein by reference as part of this disclosure. technical field [0003] The present invention relates to the formation of light redirecting polymeric films comprising a plurality of optical elements with optically modifying layers. In particular, the present invention relates to light redirecting films suitable for directing light energy in LCD display devices with broad and uniform light output. Background technique [0004] Light redirecting films are typically thin, transparent optical films or substrates that redistribute light passing through the film so that the distribution of light exiting the film is directed more perpendicular to the surface. Light relocating films typically have ordered prismatic grooves, lenticular grooves, or pyramids on the exit surfa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/00G02B1/04G02F1/1335
CPCG02F1/133606G02B5/0268G02F2202/022G02F2001/133607G02B6/0053G02F1/133607G02B5/0221G02B6/0051
Inventor R·P·布尔徳拉斯C·M·小兰金J·M·帕尔梅J·C·布鲁尔E·M·贝坦库尔特
Owner ROHM & HAAS DENMARK FINANCE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com