Abstract: A substrate for mounting light-emitting elements to mount a plurality of double wire type light-emitting elements so as to be connected in parallel, comprising a substrate main body made of a sintered product of an inorganic material powder and having a mounting surface for light-emitting elements; wiring conductors provided so as to be connected to electrodes of the light-emitting elements in one-to-one at a position out of a portion between the light-emitting elements, on the mounting surface; a reflection film formed on the mounting surface excluding the wiring conductors and a periphery thereof; and an overcoat glass film provided on the mounting surface so as to cover the entire reflection film including its edge and so as to exclude the wiring conductors and a periphery thereof, and a light-emitting device using it.

Abstract: An organic LED element having improved reliability in a long-term use, and having improved external extraction efficiency up to 80% of emitted light is provided. A substrate for an electronic device according to the present invention includes: a translucent substrate; a scattering layer including a glass and being provided on the translucent electrode; a coating layer provided on the scattering layer; and scattering materials that are present in the scattering layer and the coating layer and are not present on a surface of the coating layer, in which a surface of the coating layer has waviness in which a ratio Ra/R?a of waviness height Ra to waviness period R?a exceeds 1.0×10?4 and is 3.0×10?2 or less.

Abstract: There is provided a glass-covered light-emitting element and a glass-covered light-emitting device, which contain a properly low content of bubbles that reduce transmittance by scattering of visible light, and which are covered with a glass film having a total light transmittance of 85% or more The glass-covered light-emitting element is covered with glass, which is formed of calcined glass frit, which has a softening temperature of 600° C. or less, which has a total light transmittance of 85% or more, which a coefficient of thermal expansion of 70×10?7/° C. to 125×10?7/° C., and which has a content of bubbles having a diameter of 1 ?m or more, the content being 500,000 bubbles/mm3 or less.