Developed product Conductive (ITO) Film · 2019. 12. 3. · Developed product *The image is...
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Surface resistance value Total light transmittance Haze Substrate film Substrate thickness 150 Ω/□ 89 % ＜1 % PET 80 Ω/□ 89 % ＜1 % PET 50Ω/□ 88 % ＜1 % PET 30 Ω/□ 86 % ＜1 % PET 30 Ω/□ 88 % ＜1 % COP 100μm Characteristics Mass-produced products (our company’s product) Developed product *The above are measured values, not guaranteed values. Conductive (ITO) Film for Large Touch Panels GUNZE Limited Electronic Components Division Transparent conductive film for large touch panels In ITO film, a metal called indium tin oxide is deposited in an extremely thin layer. ITO has the characteristics of being both conductive and highly transparent, and it is used as an electrode material for displays and other devices. In designing touch panels for large screens such as digital signage, there is a need for conductive films with lower resistance if one is to pursue sensitivity and precision when touched. Invisible characteristic 【Basic composition】 ITO IM(Index Matching) Layer Clear Hard Coat Clear Hard Coat PET Film 50、100、125、188μm Whitening phenomenon Comparison of appearance on liquid crystal Low-resistance ITO film Metal mesh film Image: Xenon lamp irradiation test, after 500 hr at 60 W/m2, comparison of surface condition of ITO film (comparison with our company’s product) Developed product *The image is conceptual and may not reflect the actual situation. A conductive film with low resistance can be produced by depositing a thick metal film (ITO layer). However, if the metal film is thick, the metal color becomes more saturated, and transparency is lost. By using ITO film, Gunze strives to achieve both lower resistance and high visibility, and we have developed conductive (ITO) film suitable for large sizes. Also, if the ITO layer is thick, the patterning becomes more conspicuous. At Gunze, we provide invisible characteristics, where patterning is hard to see, using our unique thin-film formation technologies (coating, sputtering). Aside from ITO films, conductive films with low resistance also include metal mesh films. However, in metal mesh films, the liquid crystal elements and metal wiring interfere when overlaid with a liquid crystal display, and this results in light interference fringes (moire). This worry does not arise with ITO film. Gunze conductive (ITO) film has outstanding light-fastness (resistance to ultraviolet (UV) rays) and reliability. This ITO film is suitable for outdoor applications because it improves the whitening phenomenon that occurs when a panel is installed so it is and exposed to sunlight for long periods. Low resistance! No moire effects are produced! Resistant to ultraviolet degradation! 1 2 3 Material：PET 250 200 150 100 50 0 ITO resistance value（Ω/sq） 2012 2013 2014 2015 2016 2017 2019 2018 （year） Reduction of resistance 150 80 50 Ω/□ Ω/□ Ω/□ 30 Ω/□ With Without Interference fringes occur at specific angles After improvement Before improvement
Transcript of Developed product Conductive (ITO) Film · 2019. 12. 3. · Developed product *The image is...
Surface resistance value
Total light transmittance
Haze
Substrate film
Substrate thickness
150 Ω/□
89 %
＜1 %
PET
80 Ω/□
89 %
＜1 %
PET
50Ω/□
88 %
＜1 %
PET
30 Ω/□
86 %
＜1 %
PET
30 Ω/□
88 %
＜1 %
COP
100μm
Characteristics Mass-produced products (our company’s product) Developed product
*The above are measured values, not guaranteed values.
Conductive (ITO) Filmfor Large Touch Panels
GUNZE Limited Electronic Components Division
Transparent conductive film for large touch panels
In ITO film, a metal called indium tin oxide is deposited in an extremely thin layer. ITO has the characteristics of being both conductive and highly transparent, and it is used as an electrode material for displays and other devices. In designing touch panels for large screens such as digital signage, there is a need for conductive films with lower resistance if one is to pursue sensitivity and precision when touched.
Invisible characteristic
【Basic composition】ITO
IM(Index Matching) Layer
Clear Hard Coat
Clear Hard CoatPET Film
50、100、125、188μm
Whitening phenomenon
Comparison of appearance on liquid crystal
Low-resistanceITO film
Metal meshfilm
Image: Xenon lamp irradiation test, after 500 hr at 60 W/m2, comparison of surface condition of ITO film (comparison with our company’s product)
Developed product
*The image is conceptual and may not reflect the actual situation.
A conductive film with low resistance can be produced by depositing a thick metal film (ITO layer). However, if the metal film is thick, the metal color becomes more saturated, and transparency is lost. By using ITO film, Gunze strives to achieve both lower resistance and high visibility, and we have developed conductive (ITO) film suitable for large sizes. Also, if the ITO layer is thick, the patterning becomes more conspicuous. At Gunze, we provide invisible characteristics, where patterning is hard to see, using our unique thin-film formation technologies (coating, sputtering).
Aside from ITO films, conductive films with low resistance also include metal mesh films. However, in metal mesh films, the liquid crystal elements and metal wiring interfere when overlaid with a liquid crystal display, and this results in light interference fringes (moire). This worry does not arise with ITO film.
Gunze conductive (ITO) film has outstanding light-fastness (resistance to ultraviolet (UV) rays) and reliability. This ITO film is suitable for outdoor applications because it improves the whitening phenomenon that occurs when a panel is installed so it is and exposed to sunlight for long periods.
Low resistance! No moire effects are produced!
Resistant to ultraviolet degradation!
1 2
3Material：PET
250
200
150
100
50
0
ITO resistance value（Ω/sq）
2012 2013 2014 2015 2016 2017 20192018 （year）
Reduction of resistance
150
8050
Ω/□
Ω/□Ω/□ 30 Ω/□
With WithoutInterference fringes occur at specific angles
After improvement
Before improvement
