Check patentability & draft patents in minutes with Patsnap Eureka AI!

Light-diffusing film

A light-diffusing and thin-film technology, applied in the field of light-diffusing thin films, can solve problems such as difficult to achieve high brightness and shielding

Inactive Publication Date: 2007-03-14
TORAY SAEHAN
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these conventional technologies are actually difficult to achieve high brightness and shielding LCDs, that is, improved total light transmittance and high Haze

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-diffusing film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 1: Formation of Light Diffusing Layer

[0040] The light-diffusing layer composition, comprising the composition shown in Table 1 below, was coated on one surface of a highly transparent polyester film (XG533-100um, Toray Saehan Inc.) as a substrate, and then coated on It was dried at 110° C. for 60 seconds to form a 30 μm thick light-diffusing layer.

[0041] combination

Types of

amount (g)

resin

A-811 (Aekyung Chemical Co. Ltd.)

30

particles

PMMA (specific surface area 0.9)

30

solvent

MEK

40

Total

100

[0042] Step 2: Formation of anti-adhesion layer

[0043] The anti-blocking layer composition, comprising the composition shown in the following Table 2, was coated on the other surface of the substrate having the light-diffusing layer prepared in step 1, and then dried at 110° C. for 40 seconds , forming a 5 μm thick anti-blocking layer, thereby preparing the final light-...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed herein is a light-diffusing film for a backlight unit of a thin film transistor-liquid crystal display. Specifically, the current invention provides a light-diffusing film, including a transparent base sheet, a light-diffusing layer, which is laminated on any one surface of the base sheet and includes a light-diffusing resin and light-diffusing particles, and an antiblocking layer, which is laminated on the other surface of the base sheet and includes an antiblocking resin and antiblocking particles, in which the light-diffusing particles satisfy a predetermined relation between a specific surface area and a radius thereof. Accordingly, the light-diffusing film of the current invention can uniformly diffuse light transmitted from a light source lamp positioned at the side surface or back surface of a display device, thus realizing vivid and distinct display images.

Description

technical field [0001] The present invention generally relates to a light-diffusing film for a backlight device of a thin-film transistor-liquid crystal display (TFT-LCD), and more particularly, the present invention relates to a light-diffusing film for a display, the The light-diffusing film uniformly diffuses light emitted from light source lamps located on the side or rear of the display device, thereby realizing a vivid and clear display image. Background technique [0002] Recently, LCDs have been applied not only to monitors of notebook computers but also to large monitors of desktop computers and TV monitors. Therefore, backlight devices for light sources of such LCDs are increasingly required to have a large size and high brightness. [0003] In the backlight unit, the light diffusing sheet plays the role of diffusing the light from the light source on the side or back of the display device to the entire display screen, and also transforms th...

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 Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0278G02B5/0242G02B5/0221G02B5/0268Y10T428/24942G02F1/1335
Inventor 金相弼李文馥郑仁植朴骏尚
Owner TORAY SAEHAN
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