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Functional membrane capable of improving contrast ratio of bright room

A bright room contrast, functional film technology, applied in optics, instruments, optical components, etc., can solve problems such as contrast reduction, achieve low transmittance, high absorption rate, and avoid the reduction of display effect.

Active Publication Date: 2016-08-03
BEICHUAN RUIHUI SCI & TECH CO LTD
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  • Description
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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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  • Functional membrane capable of improving contrast ratio of bright room
  • Functional membrane capable of improving contrast ratio of bright room

Examples

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Effect test

Embodiment 1

[0028] ⑴Using the ray tracing method, a new type of bright room contrast-enhancing functional film with a wedge-shaped microstructure is designed, which consists of four layers. The base material is PET film. .

[0029] ⑵ Using precision diamond machining equipment to carve wedge-shaped microstructure rollers.

[0030] (3) The PET base film (thickness 100 μm, light transmittance 91%) is surface-treated, and then precisely coated with 15 μm thick optical microstructure functional layer resin (refractive index 1.35, light transmittance 93%), with a wedge-shaped microstructure The roller imprints the designed parallel wedge-shaped microstructures.

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

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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 a bright room. Background technique [0002] Flexible display is currently a research hotspot in display technology, widely used in communication, media and other fields, mainly including organic light-emitting diode (OLED), flexible liquid crystal (Flexible-LCD), electronic paper (EPD), etc., among which OLED is simple in structure, It has become the most promising full-color flexible display technology for industrialization due to its thinness and lightness. However, due to the simple structure of the OLED film layer and the lack of polarizers for liquid crystal display, the external light source will be reflected on the film layer surface of the display device, resulting in a significant decrease in contrast and affecting the display effect. As an active light-emitting display technology, outdoor and portable are the main ...

Claims

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Application Information

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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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