A new optical elasticity resin for mobile LCD modules |
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| Authors: | Yoshihisa Shinya Kenji Kamiya Tomoyuki Toyoda Yasumi Endo Nelly Soudakova Hirofumi Kondo |
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| Affiliation: | 1. Sony Chemical & Information Device Corp., Conductive Materials Div., Products Development Department, Tochigi, Japan;2. Sony Chemical Corp. of America, San Diego, CA, U.S.A.;3. Sony Chemical & Information Device Corp., R&D Div., 1078 Kamiishikawa, Kanuma, Tochigi 322‐8503, Japan |
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| Abstract: | Abstract— The display used in current cell phones has an air gap between the cover glass and the liquid‐crystal‐display (LCD) module to prevent the LCD glass from being damaged. Reflections at the boundaries of the air gap cause a reduction in the LCD luminance and contrast. To address this problem, a newly proposed LCD structure has been investigated. The “Super View Resin (SVR),” a transparent elastic resin which improves the shock resistance and visibility of the LCD, has been developed. Filling the air gap between the cover glass and LCD module with a refractive‐index‐matching resin solves the light‐reflection problem inherent in the use of a reinforced cover‐glass lens. Moreover, the elastic filler works as a damper, reducing any external shock, which prevents not only the cover glass and LCD module from being damaged, but also the glass from being shattered when it is broken. |
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| Keywords: | LCD module anti‐reflection index matching resin photopolymerization shrinkage adhesive strength viscosity glass‐transition temperature hardness transmittance contrast ratio shock absorber |
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