Provided is an alkali-resistant porous glass member suitable as a gas sensor element. A porous glass member contains, in terms of % by mass, over 0% ZrO.sub.2+TiO.sub.2+Al.sub.2O.sub.3+BeO+Cr.sub.2O.sub.3+Ga.sub.2O.sub.3+CeO.sub.2 and has a light transmittance of over 1% at any one of wavelengths from 200 to 2600 nm at a thickness of 0.5 mm.

A method of manufacturing a glass assembly to have a conductive feature includes a step of forming a glass substrate that is curved. The method also includes digitally-applying a conductive ink without a mask onto a surface of the curved glass substrate. The method further includes curing the conductive ink to form the conductive feature on the surface of the curved glass substrate, with the conductive feature having a resolution of greater than 200 dots per inch.

A method of manufacturing a glass assembly to have a conductive feature includes a step of forming a glass substrate that is curved. The method also includes digitally-applying a conductive ink without a mask onto a surface of the curved glass substrate. The method further includes curing the conductive ink to form the conductive feature on the surface of the curved glass substrate, with the conductive feature having a resolution of greater than 200 dots per inch.

Organic light emitting diode (OLED) devices are disclosed that include a first layer; a backfill layer having a structured first side and a second side; a planarization layer having a structured first side and a second side; and a second layer; wherein the second side of the backfill layer is coincident with and adjacent to the first layer, the second side of the planarization layer is coincident with and adjacent to the second layer, the structured first side of the backfill layer and structured first side of the planarization layer form a structured interface, the refractive index of the backfill layer is index matched to the first layer, and the refractive index of the planarization layer is index matched to the second layer.

Organic light emitting diode (OLED) devices are disclosed that include a first layer; a backfill layer having a structured first side and a second side; a planarization layer having a structured first side and a second side; and a second layer; wherein the second side of the backfill layer is coincident with and adjacent to the first layer, the second side of the planarization layer is coincident with and adjacent to the second layer, the structured first side of the backfill layer and structured first side of the planarization layer form a structured interface, the refractive index of the backfill layer is index matched to the first layer, and the refractive index of the planarization layer is index matched to the second layer.

Organic light emitting diode (OLED) devices are disclosed that include a first layer; a backfill layer having a structured first side and a second side; a planarization layer having a structured first side and a second side; and a second layer; wherein the second side of the backfill layer is coincident with and adjacent to the first layer, the second side of the planarization layer is coincident with and adjacent to the second layer, the structured first side of the backfill layer and structured first side of the planarization layer form a structured interface, the refractive index of the backfill layer is index matched to the first layer, and the refractive index of the planarization layer is index matched to the second layer.

Organic light emitting diode (OLED) devices are disclosed that include a first layer; a backfill layer having a structured first side and a second side; a planarization layer having a structured first side and a second side; and a second layer; wherein the second side of the backfill layer is coincident with and adjacent to the first layer, the second side of the planarization layer is coincident with and adjacent to the second layer, the structured first side of the backfill layer and structured first side of the planarization layer form a structured interface, the refractive index of the backfill layer is index matched to the first layer, and the refractive index of the planarization layer is index matched to the second layer.

An article of fire rated glass and method of producing the same prepared by selecting a sheet of clear float annealed glass of at least 19 millimeters in thickness and providing the edge of the sheet substantially free of imperfections. The glass sheet is then specially tempered at a temperature of at least 575 degrees Celsius for a period of at least 750 seconds, followed by a cooling step.

An article of fire rated glass and method of producing the same prepared by selecting a sheet of clear float annealed glass of at least 19 millimeters in thickness and providing the edge of the sheet substantially free of imperfections. The glass sheet is then specially tempered at a temperature of at least 575 degrees Celsius for a period of at least 750 seconds, followed by a cooling step.

A glass substrate with improved microLED transfer characteristics is disclosed, the glass substrate comprising a first major surface, a second major surface opposite the first major surface, and a thickness therebetween. An electrically functional layer may be disposed on the first major surface. The glass wafer exhibits a waviness with a magnitude less than or equal to about 1 μm in a spatial wavelength range from about 0.25 mm to about 50 mm.