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Enhance bright room contrast functional film

A bright room contrast and functional film technology, applied in optics, instruments, optical components, etc., can solve the problems of contrast drop and achieve the effects of low transmittance, high absorption, and low reflectivity

Active Publication Date: 2017-12-05
BEICHUAN RUIHUI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a functional film for improving bright room contrast, which is applied to flexible display devices and solves the problem of significant decrease in contrast under bright room conditions and outdoor conditions of display devices.

Method used

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  • Enhance bright room contrast functional film
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Examples

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Embodiment 1

[0028] ⑴Using light tracing method, design a new type of bright-room contrast-enhancing functional film with wedge-shaped microstructure. It consists of four layers, the substrate is PET film, and from the substrate upwards are optical microstructure functional layer, absorption layer, and protective layer. .

[0029] ⑵Using precision diamond machining equipment, carve out the wedge-shaped microstructure roller.

[0030] ⑶ Surface treatment of PET base film (thickness 100μm, light transmittance 91%) roll material, and then precision coating 15μm thick optical microstructure functional layer resin (refractive index 1.35, light transmittance 93%), with wedge-shaped microstructure The roller embossed the designed parallel wedge-shaped microstructure.

[0031] ⑷First control the light distance to 20cm and the intensity to 200mV / cm 2 , The curing time is 5s, so that the resin of the optical microstructure functional layer is semi-cured; the optical microstructure functional layer resin t...

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Abstract

The invention provides a functional membrane capable of improving a contrast ratio of a bright room. The functional membrane employs a wedge-shaped structure and is formed by four layers. A PET film is used as a base material; and an optical microstructure function layer, an absorption layer, and a protection layer are arranged successively on the base material from bottom to top. The provided functional membrane has characteristics of low reflectivity and low transmittance for external incident light and high transmittance for internal transmitting light; and a contrast ratio of a bright room of a flexible display device can be improved obviously. According to the invention, the functional membrane has advantages of high improvement of the contrast ratio of the bright room, high transmittance, low thickness, and high flexibility and the like and can be applied to a flexible display device like an OLED; and thus a problem of obvious reduction of a contrast ratio on the bright room condition and the outdoor condition of the display device can be solved.

Description

Technical field [0001] The invention relates to the technical field of new materials, in particular to a functional film for improving the contrast of the bright room. Background technique [0002] Flexible display is the current research hotspot of display technology. It is widely used in communications, media and other fields. There are mainly organic light-emitting diodes (OLED), flexible liquid crystals (Flexible-LCD), electronic paper (EPD), etc., among which OLEDs are simple, Light and thin, it has become the most industrialized full-color flexible display technology. However, due to the simple structure of the OLED film layer and the lack of a polarizer for liquid crystal display, the external light source will reflect on the surface of the film layer of the display device, resulting in a significant reduction in contrast and affecting the display effect. As an active luminous display technology, outdoor and portable are the main application methods. High bright room cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/10G09F9/30
CPCG02B1/10G09F9/301
Inventor 朱焰焰郑杰马苹苹陈士冰徐刚张敏芳
Owner BEICHUAN RUIHUI SCI & TECH CO LTD
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