Display substrate with diffuser coating
First Claim
1. A method of establishing a diffuser surface coating on a substrate surface, said method comprising:
- providing a transparent substrate having a surface;
providing an ultrasonic vibrating device;
supplying a liquid coating material to said ultrasonic vibrating device;
vibrating said ultrasonic vibrating device to atomize the coating material such that particles of the coating material are airborne;
guiding said airborne particles via a low pressure air flow to guide said airborne particles onto the substrate surface to establish a coating of said coating material at said substrate surface, said low pressure air flow comprising an air flow of less than about 100 p.s.i; and
curing said coating to form a durable diffuser coating at said substrate surface that provides reduced glare and that provides sufficient transparency and resolution when viewing through said coating and said transparent substrate when said diffuser coated substrate is used as a substrate for at least one of (a) a display device and (b) a touch screen device.
5 Assignments
0 Petitions
Accused Products
Abstract
A system for coating a substrate surface with a diffuser coating includes an ultrasonic vibrating device, a supply device and a low pressure air source. The supply device supplies a liquid coating material or precursor solution to the ultrasonic vibrating device. The ultrasonic vibrating device is operable to vibrate to atomize the coating material and to discharge airborne particles at a discharge end of the ultrasonic vibrating device. The low pressure air source generates low pressure air flow generally proximate to the discharge end to guide at least some of the airborne particles onto the substrate surface. The ultrasonic vibrating device may be at a coating chamber and the substrate may be positionable within the coating chamber. A conveyor may be operable to convey substrates through the coating chamber, whereby the coating particles are guided onto the substrate surface as the substrate moves through the coating chamber.
73 Citations
12 Claims
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1. A method of establishing a diffuser surface coating on a substrate surface, said method comprising:
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providing a transparent substrate having a surface; providing an ultrasonic vibrating device; supplying a liquid coating material to said ultrasonic vibrating device; vibrating said ultrasonic vibrating device to atomize the coating material such that particles of the coating material are airborne; guiding said airborne particles via a low pressure air flow to guide said airborne particles onto the substrate surface to establish a coating of said coating material at said substrate surface, said low pressure air flow comprising an air flow of less than about 100 p.s.i; and curing said coating to form a durable diffuser coating at said substrate surface that provides reduced glare and that provides sufficient transparency and resolution when viewing through said coating and said transparent substrate when said diffuser coated substrate is used as a substrate for at least one of (a) a display device and (b) a touch screen device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification