A display device includes a first substrate including a display area and a peripheral area, a circuit element layer and a light emitting element layer in the display area, a second substrate facing the light emitting element layer and defining a space therebetween, a sealant which in the peripheral area and bonding the first and second substrates to each other, a filler inside of the sealant and filling the space, and a dam which is in the peripheral area and between the light emitting element layer and the sealant. The dam includes a first side surface which faces the sealant and a second side surface which faces the light emitting element layer, and an angle between the first side surface and a lower surface of the dam which is greater than an angle between the second side surface and the lower surface of the dam.

A display device and an electronic device comprising the display device are provided. The display device includes a base layer including an active area and a peripheral area, the peripheral area around at least a portion of the active area and including a crack dam area, a light emitting element on the base layer in the active area, a crack dam on the base layer in the crack dam area and including a crack dam insulating layer, and a crack sensing line in the crack dam area.

A light emitting device is capable of suppressing peeling of a reflective resin layer disposed around a light emitting element from a substrate, and a lighting device includes the light emitting device.

The light emitting device includes: a light emitting element mounted on a top surface of a substrate; a resin wall having an opening surrounding the light emitting element, and including an opening reduction part in which an opening dimension of the opening reduces in a normal direction of the top surface of the substrate; a reflective resin layer provided on the top surface of the substrate between the opening reduction part of the resin wall and the light emitting element; and a phosphor resin layer provided above the light emitting element.

In a method of manufacturing a display device, the method may include: selecting a pre-adhesive layer by measuring a free volume of the pre-adhesive layer; and forming an adhesive layer and a cover window on a display panel. In the selecting of the pre-adhesive layer, the pre-adhesive layer selected may form the adhesive layer.

A preform cover glass shape prediction device for predicting a shape of a preform cover glass, the device includes a preform cover glass prediction model generator trained to obtain input data representing a training curved cover glass and a training preform cover glass, to generate cover glass characteristic data based on the input data, and to generate a predicted design specification of a target preform cover glass based on the cover glass characteristic data, and a preform cover glass shape predictor configured to generate a predicted design specification for a preform cover glass corresponding to a target curved cover glass based on the cover glass characteristic data and characteristic data of the target curved cover glass.

Described are light emitting diode (LED) arrays comprising a plurality of mesas defining pixels having sidewalls, each of the mesas comprising semiconductor layers having a total thickness, the semiconductor layers including an n-type layer, an active region, and a p-type layer. A plurality of junction spacers comprise a dielectric material conformal to a portion of the sidewalls, and span a longitudinal distance of greater than or equal to 20% of the thickness of the semiconductor layers. A plurality of cathodes comprising the n-contact material between each of the mesas provide optical isolation therebetween, and electrically contact an uninsulated portion of the n-type layer of each of the mesas along the sidewalls, the uninsulated portion of the n-type layer comprising a doped N-type material. A surface of the doped N-type material of the uninsulated portion of the n-layer is effective to provide an active metal-semiconductor contact.

Light-emitting diode (LED) devices and more particularly lens structures for LED chips in LED packages are disclosed. Lens structures include complex shapes for achieving various emission patterns in LED packages. Complex lens shapes include arrangements of multiple lenses within a same LED package. A first lens is arranged on an LED chip with a self-forming shape, followed by a second lens that encapsulates the first lens. The self-forming shape of the first lens provides the ability to have lens widths that taper inward and depressions positioned relative to the underlying LED chip. Combinations of shapes for the first and second lenses may be configured to collectively provide tailored light emission profiles in corresponding LED packages.

Light-emitting diode (LED) devices and more particularly lens structures in LED packages are disclosed. Lens structures include complex shapes for achieving various emission patterns in LED packages. Complex lens shapes include lens widths that are greater than corresponding widths of support elements, including lead frame structures or submount structures. Complex lens shapes further include inward depressions positioned relative to underlying LED chips for directing peak emission intensities off center relative to LED packages. Exemplary LED packages further include encapsulant layers positioned between lenses and underlying LED chips for providing one or more of improved surfaces for lens formation and improved adhesion.

An etching device includes a stage on a target substrate, and a nozzle part opposing the stage with the target substrate therebetween. The stage includes a first surface parallel to a plane defined by a first direction and a second direction crossing the first direction, and a second surface parallel to a third direction which forms a first angle with the second direction, and the second surface includes a first side parallel to the first direction, and a second side opposing the first side in the third direction and adjacent to the first surface. The nozzle part includes a (1-1)-th nozzle, a (1-2)-th nozzle spaced apart from the (1-1)-th nozzle in the first direction, and a (2-1)-th nozzle disposed between the (1-1)-th nozzle and the (1-2)-th nozzle.

A display apparatus includes: a first light source configured to emit light visible from a first viewpoint; a second light source arranged in a row with the first light source in a first direction and configured to emit light visible from a second viewpoint; and a multi-view lens configured to refract the light emitted from the first light source toward the first viewpoint and to refract the light emitted from the second light source toward the second viewpoint, wherein each of the first light source and the second light source includes: a light emitter; and a slit cover covering a portion of the light emitter between the light emitter and the at least one multi-view lens, wherein the slit cover includes a light source slit having a first width and is configured to allow the light emitted from the light emitter to pass through the light source slit.