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News Release |
| [New Product] July 15, 2010 |
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Commercialization of Optical Elasticity Resins for Large Flat Panel Displays
with Superior Image Reproduction
–Effective for creating lower-profile and higher-contrast HDTVs,
3D televisions and other displays–
| NEWS_no 10-006 |
In addition to its SVR1000 series of optical elasticity resins for small-to-medium-sized flat panel displays, such as those used in mobile phones and digital still cameras, Sony Chemical & Information Device has commercialized and commenced mass production on its new SVR7000 series of optical elasticity resins, which is designed for large flat panel displays of 40 inches or more.
The SVR7000 series is equipped on the OptiContrast panel of the already-released Sony BRAVIA LX900 series and HX900 series, where the resins boost the contrast level of displays.
The SVR7000 series is equipped on the OptiContrast panel of the already-released Sony BRAVIA LX900 series and HX900 series, where the resins boost the contrast level of displays.
<Main Characteristics of Optical Elasticity Resin>
Inserting optical elasticity resin, which is regulated by the same refractive index as the front cover, between the front cover and the display results in faithful image reproduction with higher contrast and a greater feeling of depth even in bright rooms compared with the air gap structure, because the resin minimizes reflection from sunlight, fluorescent light, or other exterior light, and also minimizes the scattering of the image light inside the panel so as not to impair the actual performance of the LCD module. Moreover, imparting the inserted resin itself with elasticity softens any shocks from outside and protects the front cover and display module from damage. Even if the cover is damaged, the resin prevents the glass from shattering. Hence the resin reinforces the panel and achieves a thinner profile simultaneously. Applying antireflection film to the front cover at the same time inhibits reflection of exterior light, thereby enabling even higher contrast levels.
<Comparison of Panel Structures in Large LCD Televisions>
<Comparison of Screens of Air Gap Structure vs Optical Elasticity Resin with Antireflection Film Structure>
<Comparison of Panel Strength>
（Research by Sony Chemical & Information Device Corporation）
“Achieved an increase in strength of approximately 1.5 times” compared with the air gap structure under the following test conditions.
■SVR7000 Series, Suited for Large Flat Panel Displays
Compared with conventional products, this latest SVR7000 series of optical elasticity resins have low viscosity for shorter spread time that enables excellent air dissipation and a large UV irradiated area so that even when
antireflection film is applied the resins harden quickly with rapid curing under UV light. These characteristics enable the resins to be used in large flat panel displays.
antireflection film is applied the resins harden quickly with rapid curing under UV light. These characteristics enable the resins to be used in large flat panel displays.
<Comparison of Specifications of Conventional Resins vs the SVR7000 Series>
| Product Name | SVR1100 | SVR7000 Series | Remarks | |
|---|---|---|---|---|
| Application | Small-to-medium-sized display panel |
Large display panel | - | |
| Refraction index | Liquid state | 1.52 | 1.52 | Abbe ＠25℃ |
| Viscosity(mPa·s) | 3,500 | 700 to 2,000 | Rheo-meter ＠25℃ | |
| Hardness | 9 | 6 to 8 | Durometer (Code E) |
|
| Curing shrinkage rate (%) | 1.6 | 1.2 to 2.2 | Density meter | |
| Curing conditions (mJ/cm²) | Through glass | 5,000 | 2,000 to 5,000 | Metal halide lamp |
| Through AR | Over 15,000 | 4,000 to 7,000 | ||
Main component: Acrylic UV curable resin
Color: Clear
■Corporate Outline
Sony Chemical & Information Device Corporation
Representative: Takashi Ichinose, Representative Director and President
Headquarters: Gate City Osaki, East Tower 8th Floor, 1-11-2 Osaki, Shinagawa-ku, Tokyo, Japan
Principal operations: Manufacturing and sales of electronics parts, adhesive materials and optical materials,
manufacturing of magnetic disks, magnetic devices, print media and LAMINATE
Representative: Takashi Ichinose, Representative Director and President
Headquarters: Gate City Osaki, East Tower 8th Floor, 1-11-2 Osaki, Shinagawa-ku, Tokyo, Japan
Principal operations: Manufacturing and sales of electronics parts, adhesive materials and optical materials,
manufacturing of magnetic disks, magnetic devices, print media and LAMINATE
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