H05K2201/0179

Method for coating devices and resulting products
10271435 · 2019-04-23 · ·

A method for waterproofing a device and the resulting device are provided. The device includes a printed circuit board assembly (PCBA), which includes a printed circuit board, and at least one electronic component disposed on the printed circuit board. A waterproof coating such as a polymer coating is disposed on or in contact with at least one portion of the at least one electronic component. A nanofilm is disposed on the PCBA. The nanofilm includes an inner coating and an outer coating. The inner coating is disposed on the printed circuit board or in contact with the waterproof coating. The inner coating comprises metal oxide nanoparticles having a particle diameter in a range of about 5 nm to about 100 nm. The outer coating in contact with the inner coating, and comprises silicon dioxide nanoparticles having a particle diameter in a range of 0.1 nm to 10 nm.

Flexible display device
10216023 · 2019-02-26 · ·

A flexible display device that can suppress spread of cracks of an inorganic layer is provided. A flexible display device includes a flexible substrate including a display area and a periphery surrounding the display area, an inorganic layer formed on the flexible substrate, a display unit formed on the display area, and a thin film encapsulation layer covering the display unit. The inorganic layer includes an opening disposed on a periphery between edges of the flexible substrate and the thin film encapsulation layer.

FLEXIBLE LED ASSEMBLY WITH UV PROTECTION

Flexible LED assemblies are described. More particularly, flexible LED assemblies having substrates with conductive features positioned on or in the substrate, and layers of ceramic positioned over exposed portions of the substrate to protect against UV degradation, as well as methods of making such assembles, are described.

FLEXIBLE DISPLAY DEVICE

A flexible display device includes a flexible substrate, an inorganic barrier layer, a metal layer, an organic buffer layer, and an insulating layer. The inorganic barrier layer is located on the flexible substrate. The metal layer is located on the inorganic barrier layer and in contact with the inorganic barrier layer. The organic buffer layer covers the inorganic barrier layer and the metal layer, and has at least one conductive via connected to the metal layer. The insulating layer is located on the organic buffer layer.

RESIN COMPOSITION, RESIN SHEET, MULTILAYER PRINTED WIRING BOARD, AND SEMICONDUCTOR DEVICE

An object of the present invention is to provide a resin composition which does not inhibit photocuring reaction in an exposure step, and can confer excellent alkaline developability in a development step, when used in the fabrication of a multilayer printed wiring board; and a resin sheet, a multilayer printed wiring board, and a semiconductor device. The resin composition of the present invention contains: a compound (A) represented by the following formula (1); and a compound (B) containing one or more carboxy groups, other than the compound (A) represented by the following formula (1):

##STR00001## wherein each R.sub.1 independently represents a group represented by the following formula (2) or a hydrogen atom; and each R.sub.2 independently represents a hydrogen atom, or a linear or branched alkyl group having 1 to 6 carbon atoms, provided that at least one R.sub.1 is a group represented by the following formula (2):

##STR00002## wherein -* represents a bonding hand.

Phosphor substrate, light emitting substrate, and lighting device
12068438 · 2024-08-20 · ·

A phosphor substrate having at least one light emitting element mounted on one surface, and includes an insulating substrate, an electrode layer disposed on one surface of the insulating substrate and bonded to the light emitting element, and a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by the light emitting element is used as excitation light, is in a visible light region, in which a surface of the electrode layer facing an outer side in a thickness direction of the insulating substrate is a flat surface, and at least a part of the phosphor layer is disposed around a bonded portion of the electrode layer with the light emitting element.

BACKPLANE AND GLASS-BASED CIRCUIT BOARD
20240274775 · 2024-08-15 ·

A backplane and a glass-based circuit board. The backplane includes: a base substrate and a plurality of light-emitting units, arranged in an array on the base substrate. Each of the light-emitting units includes at least one light-emitting sub-unit; the light-emitting sub-unit includes a connection line and a plurality of light-emitting diode chips connected with the connection line, and the light-emitting diode chips are located on a side of the connection line away from the base substrate. The connection line includes a first connection portion, a second connection portion and a third connection portion; in each of the light-emitting sub-units, the third connection portion includes a plurality of connection sub-portions, each of the connection sub-portions includes at least one electrical contact point; the electrical contact points at adjacent ends of adjacent connection sub-portions constitute an electrical contact point pair.

HEAT-DISSIPATING CIRCUIT BOARD, HEAT-DISSIPATING MEMBER, AND PRODUCTION METHOD FOR HEAT-DISSIPATING CIRCUIT BOARD

According to the present invention, a heat-dissipating circuit board is formed by providing a metal material adjacent to one surface of an insulating layer and providing a conductive metal layer to the other surface of the insulating layer. The metal material is a sheet of copper or a copper alloy or aluminum or an aluminum alloy and is 0.2-20 mm thick. The insulating layer is a metal oxide layer that has the composition AlxOyTz, is 0.2-30 ?m thick, has a volume resistivity of at least 1000 G?.Math.cm, and has a porosity of no more than 10%. The heat-dissipating circuit board has excellent heat-dissipation properties and insulation properties.

Method of producing a fine line 3D non-planar conforming circuit

A method of producing a non-planar conforming circuit on a non-planar surface includes creating a first set of conforming layers. The first set of conforming layers is created by applying an oxide dielectric layer to the surface, applying a conductive material layer to the oxide dielectric layer, applying a resist layer to the conductive material layer, patterning the resist layer according to a desired circuit layout, etching the surface to remove exposed conductive material, and stripping the resist layer. The process may be repeated to form multiple layers of conforming circuits with electrical connections between layers formed by blind microvias. The resulting set of conforming layers can be sealed.

DISPLAY DEVICE

A display device includes: a substrate including a display region and a bent region provided at a side of the display region; a first insulating layer provided on the bent region of the substrate; a second insulating layer provided on the first insulating layer, the second insulating layer including at least one opening; and a third insulating layer provided on the second insulating layer and the at least one opening, and a pixel unit to display an image is provided on the display region of the substrate.