Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optical film and backlight unit

An optical film and optical film technology, applied in the optical field, can solve the problems of poor shading of the optical film structure, reduce the light conduction efficiency in the backlight unit, and the influence of the optical film conduction, and achieve the reduction of molar interference, good shading, and improved conduction. The effect of efficiency

Active Publication Date: 2015-09-30
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the barriers provided in the optical film structure in the prior art, it will affect the transmission of light in the entire optical film, thereby reducing the light transmission efficiency in the backlight unit, and the limitation of the material of the barrier will also cause the optical film structure. less shielding

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
  • Optical film and backlight unit
  • Optical film and backlight unit
  • Optical film and backlight unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The optical film provided by this embodiment is as image 3 As shown, the optical film includes a transparent material layer, the transparent material layer is composed of a layer of material preparation layer, and the material of the material preparation layer is an acrylic acid copolymer;

[0052] An air layer is also provided in the transparent material layer, and the air layer is composed of a plurality of air passages arranged sequentially along the a direction, and each air passage in the air layer is arranged at equal intervals in turn, and the air passages run through the transparent material layer along the b direction, and the a direction and The b direction is vertical, and the a direction and the b direction are both parallel to the extended surface of the transparent material layer;

[0053] The air passage has two corresponding side walls bent along the direction b, the two corresponding side walls are symmetrical to each other, and the corresponding side ...

Embodiment 2

[0056] The optical film provided by this embodiment is as Figure 4 As shown, the optical film includes a transparent material layer, the transparent material layer is composed of a layer of material preparation layer, and the material of the material preparation layer is an acrylic acid copolymer;

[0057] An air layer is also provided in the transparent material layer, and the air layer is composed of a plurality of air passages arranged sequentially along the a direction, and each air passage in the air layer is arranged at equal intervals in turn, and the air passages run through the transparent material layer along the b direction, and the a direction and The b direction is vertical, and the a direction and the b direction are both parallel to the extended surface of the transparent material layer;

[0058] The air channel has two corresponding side walls bent along the b direction, and any section perpendicular to the b direction in each air channel is a first vertical s...

Embodiment 3

[0061] The optical film provided by this embodiment is as Figure 5 As shown, the optical film includes a transparent material layer, the transparent material layer is composed of a layer of material preparation layer, and the material of the material preparation layer is an acrylic acid copolymer;

[0062] An air layer is also provided in the transparent material layer, and the air layer is composed of a plurality of air passages arranged sequentially along the a direction, and each air passage in the air layer is arranged at equal intervals in turn, and the air passages run through the transparent material layer along the b direction, and the a direction and The b direction is vertical, and the a direction and the b direction are both parallel to the extended surface of the transparent material layer;

[0063] The air passage has two corresponding side walls bent along the direction b, the two corresponding side walls are symmetrical to each other, and the corresponding side...

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

No PUM Login to View More

Abstract

The invention provides an optical film and a backlight unit; the optical film comprises a transparent material layer; one or more mutually parallel air layers are arranged in the transparent material layer; each air layer is formed by a plurality of air paths arranged in sequence in an a-direction; the air paths penetrate the transparent material layer in a b direction; a direction is vertical to the b direction; the a and b directions both are parallel to an extension surface of the transparent material layer; each air path has two opposite side walls bending in the b direction; random sections, parallel to the transparent material layer surface, of each air path have a same shape. When incident light passes the air path, the light will be refracted or scattered in more directions because of the bending side walls of the air paths; the light has more refraction and scattering angles, so the optical film has excellent shielding property, and adverse phenomenon like mole interference and Newton rings can be reduced in probability, thus improving light conduct efficiency in the optical film.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to an optical film and a backlight unit. Background technique [0002] With the development of the information age, flat panel displays such as active matrix liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescence displays (ELs), and field emission displays (FEDs) have appeared, which The display has excellent properties such as thin profile, light weight and low power consumption. Among them, LCDs are widely used in notebook computers, monitors, TVs, etc. instead of cathode ray tubes (CRTs) due to their high contrast ratio and characteristics suitable for displaying moving images. [0003] A light source is not included in the LCD, so an additional light source is required. For example, a backlight unit including a light source is disposed under the liquid crystal panel to provide light to the liquid crystal panel so that the LCD can display images thro...

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
IPC IPC(8): G02F1/1335F21V8/00
CPCG02B6/0096G02F1/133504G02F1/1336
Inventor 金星南其他发明人请求不公开姓名
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com