Novel OLED screen protective film and preparation method and application thereof

A technology of screen protection film and protective film, which is applied in the direction of adhesive type, film/sheet release liner, film/sheet adhesive, etc., which can solve the strict requirements of static electricity, lack of OLED display protective film, etc. Problems, to achieve the effect of low static voltage of tear film, excellent exhaust, and prolong service life

Pending Publication Date: 2021-04-30
NINGBO CHANGYANG TECH
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of OLED in recent years, it has been gradually used in display fields such as mobile phones, computers, TVs, and car displays. Because it is g

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
  • Novel OLED screen protective film and preparation method and application thereof
  • Novel OLED screen protective film and preparation method and application thereof
  • Novel OLED screen protective film and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032]Example 1

[0033]The hardness of S1, TPU is set to 45-50HD, which is used to adopt ultraviolet antistatic TPU film;

[0034]S2, the production process of the thermosetting TPU layer is a slit coating method, a speed of 20 m / min, and the coating machine baking is set to 55-105 ° C, and 6 baking is sequentially set during drying. Section 55 ° C, 75 ° C, 95 ° C, 105 ° C, 95 ° C, 75 ° C;

[0035]S3, remove the release membrane of TPU, coating a hardening liquid;

[0036]S4, the production process of the hardened layer is a coating method, the speed of 25 m / min, the front oven drying temperature is set to 60-110 ° C, the drying process is provided in 4 baking sections 65 ° C, 80 ° C, 95 ° C, 105 ° C , Backend UV curing energy is set to 480MJ / cm2The hardening layer has a thickness of 2 to 5 μm, and the hardness of the hardening layer is greater than 3h;

[0037]S5, remove the other side of the TPU to the plate, and apply the PU glue as the TPU.

[0038]S6, PU glue production process is a coati...

Example Embodiment

[0041]Example 2

[0042]The hardness of S1, TPU is set to 45-50HD, which is used to adopt ultraviolet antistatic TPU film;

[0043]S2, the production process of the thermosetting TPU layer is a slit coating method, a speed of 20 m / min, and the coating machine baking is set to 55-105 ° C, and 6 baking is sequentially set during drying. Section 55 ° C, 75 ° C, 95 ° C, 105 ° C, 95 ° C, 75 ° C;

[0044]S3, remove the TPU-side release film, use the TPU to coating the substrate, coating the PU glue;

[0045]The production process of S4, PU glue is a coating method, a speed of 21 m / min, and the drying temperature of the coating machine is set to 85-135 ° C, and the 6 baking sections 85 ° C, 105 during drying process. ° C, 125 ° C, 135 ° C, 125 ° C, 105 ° C;

[0046]S5, PU rubber, the release film is an antistatic release film;

[0047]S6, after the sample is completed, you need to be matured at 80 ° C for 24 h.

Example Embodiment

[0048]Example 3

[0049]S1, adjust the hardness of the TPU layer to 90HD, using an anti-UV resistant electrostatic TPU film;

[0050]S2, the production process of the thermosetting TPU layer is a slit coating method, a speed of 20 m / min, and the coating machine baking is set to 55-105 ° C, and 6 baking is sequentially set during drying. Section 55 ° C, 75 ° C, 95 ° C, 105 ° C, 95 ° C, 75 ° C;

[0051]S3, remove the release membrane of TPU, coating a hardening liquid;

[0052]S4, the production process of the hardened layer is a coating method, the speed of 25 m / min, the front oven drying temperature is set to 60-110 ° C, the drying process is provided in 4 baking sections 65 ° C, 80 ° C, 95 ° C, 105 ° C , Backend UV curing energy is set to 480MJ / cm2The hardening layer has a thickness of 2 to 5 μm, and the hardness of the hardening layer is greater than 3h;

[0053]S5, remove the other side of the TPU to the plate, and apply the PU glue as the TPU.

[0054]S6, PU glue production process is a coa...

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
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of electronic screen protective films, in particular to a novel OLED screen protective film and a preparation method and application thereof. According to the novel OLED screen protective film. The protective film is composed of a release film and/or a hardened layer, a TPU base material layer, a PU adhesive layer and a first antistatic release film from top to bottom. The TPU base material layer adopts an anti-ultraviolet and anti-static TPU film, and the PU adhesive layer adopts an anti-static PU adhesive. Compared with the prior art, the protective film has the advantages that the protective film has good exhaust performance, weather resistance, low film tearing electrostatic voltage and excellent optical performance, does not generate residual glue after long-time use, and is suitable for various OLED screens including foldable screens, curved screens, ultrathin screens and other products.

Description

technical field [0001] The present application relates to the technical field of electronic screen protection films, in particular to a novel OLED screen protection film and its preparation method and application. Background technique [0002] Organic Light Emitting Diode (OLED) is a photoelectric technology that uses organic semiconductor materials to produce reversible discoloration under current drive to achieve colorful display. OLED has the advantages of thinness, high brightness, wide viewing angle, fast response, flexibility, etc., and is considered to be the most promising new generation display technology. With the development of OLED in recent years, it has been gradually used in display fields such as mobile phones, computers, TVs, and car displays. Because it is getting thinner and thinner, and has stricter requirements on static electricity, there is a lack of protection suitable for OLED displays on the market. membrane. In summary, OLED screens need to be ma...

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): C09J7/25C09J7/40C09J7/30C09J175/04H01L51/52
CPCC09J7/25C09J7/40C09J7/30C09J175/04C09J2475/006H10K50/8426
Inventor 金亚东杨帆宋明雄周玉波朱正平
Owner NINGBO CHANGYANG TECH
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