Optical thin film of back light module group

An optical film and backlight module technology, applied in optics, nonlinear optics, prisms, etc., can solve the problems of reducing the life of the roller, colloid residue, and easy to have glue residue on the roller, and achieve the effect of avoiding glue residue.

Inactive Publication Date: 2008-06-25
PRODISC TECH INC
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, when the roller is separated from the light-curing glue, since the size of the prism 153 is quite fine, even reaching a micron-level process precision, the place where the roller corresponds to the V-shaped groove 154 is more likely to have colloid residues, which is not only easy Affects the accuracy of the subsequent processing process, and also easily reduces the life of the roller
[0009] Therefore, how to provide an optical film for the backlight module to solve the problem of easy residual glue on the rollers is an important issue.

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 thin film of back light module group
  • Optical thin film of back light module group
  • Optical thin film of back light module group

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0062] As shown in FIG. 3 , the optical film 2 of the backlight module includes a substrate 3 and a prism sheet 4 . Wherein, the material of the substrate 3 may be Poly(ethylene terephthalate), PET, and the thickness may be between 30 μm and 250 μm according to actual design requirements.

[0063] The prism sheet 4 is disposed on one side of the substrate 3 , and the prism sheet 4 can be formed by using a roller as a mold to coat the substrate 3 with photocurable glue, perform an embossing process, and then cure with ultraviolet rays. Of course, the manufacturing method of the prism sheet 4 is not limited thereto, and it can also be embossed on a mold with a light-curing glue by a roller, and then pasted on the substrate 3 after curing.

[0064] Please refer to Figure 3 and Figure 4 , where, while Figure 4 It is an enlarged schematic view of one of the prism patterns 41 in FIG. 3 . The prism sheet 4 includes a plurality of periodically arranged prism patterns 41, that is to...

no. 2 example

[0072] Please refer to Figure 9 In this embodiment, the main difference from the first embodiment is that the number of triangular prisms 411 included in each prism pattern 41 is different. Here, take the case of 2n+1 triangular prisms and n=1 as an example, which means that the prism pattern 41 has three triangular prisms as an example. The prism pattern 41 in the figure has a first prism 411a, a second prism 411b and a third prism 411c, wherein a rounded corner 412 is formed between the first prism 411a and the second prism 411b. Certainly, the fillet 412 can also be formed between the second prism 411b and the third prism 411c at the same time.

[0073] In addition, the size of the prism pattern 41 of this embodiment is also different from that of the first embodiment. Here, the period length D of the prism pattern 41 is 100 μm, the first prism 411a has a first height H1 (20 μm), and the second prism 411b Having a second height H2 (30 μm) and a third prism 411c having a ...

no. 3 example

[0076] Please refer to Figure 10 In this embodiment, the main difference from the first embodiment and the second embodiment is that the number of triangular prisms 411 included in each prism pattern 41 is different. Here, the case where there are 2n triangular prisms and n is equal to 2 is taken as an example, which means that the prism pattern 41 has four triangular prisms as an example. The prism pattern 41 in the figure has a first prism 411a, a second prism 411b, a third prism 411c and a fourth prism 411d, wherein a rounded corner 412 is formed between the second prism 411b and the third prism 411c. The position of the rounded corner 412 is not fixed, of course, the rounded corner 412 can also be formed between the first prism 411 a and the second prism 411 b or between the third prism 411 c and the fourth prism 411 d.

[0077] In addition, the size of the prism pattern 41 is also different from the above-mentioned embodiments, and here, the period length D of the prism...

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
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to view more

Abstract

An optical thin film of backlight module comprises a basal plate and a prism sheet. The prism sheet is arranged on one side of the basal plate and comprises a plurality of prism patterns in periodic arrangement. The prism patterns respectively have a plurality of triangular prisms, wherein, a round angle is formed between at least two adjacent triangular prisms. The present invention can reduce residual glue of roller wheels.

Description

technical field [0001] The invention relates to an optical film, in particular to an optical film of a backlight module. Background technique [0002] In recent years, due to the development of display technology, traditional cathode ray display devices have been gradually replaced by flat-panel display devices. Generally, flat-panel display devices can be plasma display devices or liquid crystal display devices, and have been applied to many types of electronic products, such as Laptops, TVs and desktop monitors, etc. Among them, the liquid crystal display device has been used in various electronic products due to its advantages of low power consumption, low heat generation, light weight and non-radiation, and has gradually become the mainstream of flat panel display devices. [0003] Generally speaking, a liquid crystal display device mainly includes a liquid crystal panel (Liquid Crystal Panel) and a backlight module (Backlight Module). Wherein, the liquid crystal panel...

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): G02F1/1335G02B5/04
Inventor 邱奕荣蔡曜徽龚大焜
Owner PRODISC TECH INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap