Patterned ITO Coating,
Indium Tin Oxide
Visiontek
can offer patterning of ITO in the following formats:
- ITO GLASS ITO coated soda lime float glass
ITO
Coatings
- ITO PET , 50,
100 or 300 ohms/sq,
on 175 micron thick polyester film
ITO
Polyester Sheet
- Custom produced ITO
on a variety of substrates, including
polycarbonate, acrylic , and special glasses with a range of sheet resistances.
- OLED Polished
ITO glass on polished
soda lime float glass OLED Glass
- FTO
coated Glass - Laser Scribed TEC8, TEC10,TEC15.
FTO Glass
A specialized
pattern masking process is
used which allows us to offer quantities
ranging from
small scale prototyping and research and development
requirements to
full scale production volumes. Patterns
can be produced from engineering drawings or directly from data files.
The process limitations patterning
ITO coated glass are
- Maximum patterning
area 350 x 350 mm
- Minimum feature
dimension 0.05 mm
- Minimum spacing
0.05 mm
- Positioning
accuracy
+/- 0.02 mm
The process limitations
patterning ITO coated PET Film are
- Maximum patterning
area 250 x 250 mm
- Minimum feature
dimension 0.2 mm
- Minimum spacing
0.2 mm
- Positioning
accuracy
+/- 0.2 mm
Conductive
Coatings
Visiontek
Systems Ltd offers a range custom ITO coatings and
a
range
of ITO coated glass sheet.
Clarity
is an important consideration for display filters.
Choosing an emi-shielded filter
involves a trade-off
between clarity and shielding effectiveness.
Conventional mesh
windows
offer about 60-70% light
transmission and can produce optical distortion
patterns, the shielding effectiveness however is high
with up to 80dB of attenuation.
The alternative solution is to use a glass or plastic
substrate with a transparent metallic coating. These
offer between 55% and 85% light transmission depending on
the level of resistance required and will not distort
the image on the display. The shielding
effectiveness is
much lower than metallic mesh windows, with an
attenuation of between
5 and 40dB depending on the size
of the display and the level of light transmission
required.
ITO
coated glass
Emi-ITO
Glass is a range of EMI shielded windows with a
conductive coating for use
in
EMI/RFI shielding applications. The combination of high
visible light transmission,
near
neutral colour and low electrical resistance make an
ideal EMI/RFI shield for
electronic displays requiring
moderate shielding effectiveness and high quality
optical properties.
Product
Format
EMI-ITO
windows are either un-laminated or fully laminated glass
filters with an ITO
coating
of 12 ohms per square. Windows are available to order as
finished windows. Laminated versions offer greater
strength and options for front surface treatment
and
edge
profiles.
Coating
Properties
The
soda lime float glass is coated with a primary layer of
Silicone Oxide (SiO2) and secondary layer of Indium Tin
Oxide (ITO).
Surface Resistance:-
12 ohms per square
Coating Thickness:-
150nm
Heat Resistance:-
450 degree C
Humidity (60°C/90%
RH) . No effect
Adhesion to glass:-
MIL M-13508 4.4.6
Abrasion Resistance:-
MIL C-675-A 4.6.11
MIL E-12397-B
Transmittance at 550nm:-
89%
Colour:-
Clear
Reflection:-
< 4%
Termination
Method
Direct
contact can be made to the conductive surface by
suitable conductive fabric
over
foam gasket, silver loaded silicone gasket, copper tape
or silver epoxy painted
bus
bar. Do not use gaskets containing metal which can
damage the coating or place
the
window directly against a hard plastic or metal surface
Product Range
Size:-
Parts up to 500mm x 400mm
Thickness:-
1.1mm un-laminated
Greater
than 2.5mm laminated
Front
Finish:- Plain
Glass
Anti-Reflective
(MLAR) coating
Non-Glare
(VRD 140) etch
Edge
Form:-
Design
Options
Constrast
Enhancement and privacy filters
Colours
and neutral density tints
NIR
blocking filters
ITO
Coatings
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