Phase contrast film and production method therefor
A retardation film and compound technology, applied in the direction of polarizing elements, etc., can solve the problems that it is difficult to control the refractive index of the retardation film, and the characteristics cannot be obtained, so as to achieve the effect of suppressing the occurrence of cracks
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0154] Copolymer 1 and polyisocyanate (manufactured by Asahi Kasei Co., Ltd., DURANATE TKA-100) were dissolved in THF at a weight ratio of 100:0.3 to prepare a solution having a concentration of 20% by weight. This solution was formed into a coating film on a substrate using a spin coater and allowed to dry. Use a Glan Taylor prism to convert ultraviolet rays from a high-pressure mercury lamp into polarized light, and irradiate the dried coating film from the normal direction (irradiation dose: 270mJ / cm 2 ). The film irradiated with polarized light was placed in a thermostat set at 135° C., heated, cooled to 100° C. over 8 minutes, and then taken out from the thermostat. Next, the coating film was irradiated with ultraviolet light from a high-pressure mercury lamp (irradiation dose: 800 mJ / cm2) without polarized light conversion. 2 ).
[0155] The optically anisotropic layer of the obtained retardation film and the adhesive agent of the glass substrate provided with an adhe...
Embodiment 2
[0158] The surface of the TAC substrate was surface-treated using a primer comprising polyisocyanate (manufactured by Tosoh Corporation, CORONET L-55E) and an acrylic binder. Except having used the surface-treated base material, it carried out similarly to Example 1, and formed the optically anisotropic layer on a base material, and produced the retardation film.
[0159] The optical properties of the retardation film produced in this way were Re≒235 nm, Nz coefficient≒0.78 (measured values including the base material), and the thickness of the optically anisotropic layer was 3.7 μm.
[0160] The produced retardation film was wound up into a 5 mmφ rod with the optically anisotropic layer on the outside, and it was confirmed that no cracks occurred in the optically anisotropic layer.
Embodiment 3
[0162] Copolymer 1 and polyethylene glycol 2000 (manufactured by Nacalai Tesque Co., Ltd., average molecular weight 1850 to 2150) were dissolved in THF at a weight ratio of 90:10 to prepare a solution having a concentration of 20% by weight. This solution was formed into a coating film on a substrate using a spin coater and allowed to dry. Use a Glan Taylor prism to convert ultraviolet rays from a high-pressure mercury lamp into polarized light, and irradiate the dried coating film from the normal direction (irradiation dose: 270mJ / cm 2 ). The film irradiated with polarized light was placed in a thermostat set to 135° C., heated, cooled to 100° C. over 8 minutes, and then taken out from the thermostat. Next, the coating film was irradiated with ultraviolet light from a high-pressure mercury lamp (irradiation dose: 800 mJ / cm2) without polarized light conversion. 2 ).
[0163] The optically anisotropic layer of the obtained retardation film and the adhesive agent of the glass...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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