A display device includes a substrate, a pixel electrode disposed on the substrate, an organic layer disposed on the pixel electrode, a light emitting element disposed on the organic layer, including a semiconductor stack, a first protective layer, a contact electrode, and a second protective layer, a connection electrode connecting the light emitting element and the pixel electrode, wherein the first protective layer is an insulating protective layer, the second protective layer is a conductive protective layer, wherein the connection electrode and the second protective layer are etchable with the same etchant.

The present disclosure is a display device including a micro light-emitting element. The display device includes: a substrate including a display area and a non-display area; a driving circuit disposed on the substrate in the display area; a plurality of light-emitting elements disposed below and above the driving circuit respectively, and electrically connected to the driving circuit; and a plurality of bonding alignment key patterns respectively disposed in corner regions of the non-display area. Thus, a display panel and a cover member are accurately bonded to each other based on the bonding alignment key pattern in a manufacturing process of the display device. Openings in the black matrix further facilitate ambient light or temperature sensing. The arrangement helps reduce bezel size, improve panel reliability, and enhance product durability and power efficiency.

Disclosed is a display device including a micro light-emitting element. The display device includes a substrate including a display area and a non-display area; a driving chip disposed on the substrate in the display area; a plurality of light-emitting elements disposed in an upper direction of the driving chip and electrically connected to the driving chip; a plurality of power lines disposed in the display area; and a plurality of dummy lines disposed in the non-display area, wherein the plurality of power lines and the plurality of dummy lines are connected to each other through a connection line in a spline area, wherein the spline area is defined in each corner of the display area, wherein a boundary line between the display area and the non-display area in the spline area has a curved shape.

The disclosure discloses a display device. The disclosure includes a substrate, a circuit layer on the substrate, and a plurality of banks on the circuit layer. One or more light-emitting elements, each having a first electrode and a second electrode, are disposed one-to-one on the banks. A contact electrode is on the circuit layer, spaced apart from the banks. A first optical layer covers the banks and the light-emitting elements on the banks. A second optical layer covers the first optical layer and includes a contact hole that exposes a portion of the contact electrode. The structure is configured such that, when the distance between the bank and the first optical layer on a surface of the circuit layer is defined as 1, the distance between the first optical layer and the contact hole on the same surface ranges from 0.5 to 2.5, thereby supporting improved structural integrity and reliability.

A display device may include a substrate, light emitting devices on the substrate and in a display area, banks on the substrate and in the display area, row lines on the substrate, and column lines on the substrate. The column lines may include first and second column lines spaced apart from each other. The light emitting devices may include first and second light emitting devices between the first and second column lines. The first light emitting device may be electrically connected to the first column line, and the second light emitting device may be electrically connected to the second column line. The banks may include a first bank on which the first light emitting device and the second light emitting device are mounted. The first light emitting device and the second light emitting device may be together on the first bank, and may be positioned diagonally relative to each other.

A display device includes a substrate, an insulating layer disposed on the substrate, a bank disposed on the insulating layer, a contact electrode disposed to be spaced apart from the bank on the insulating layer, a first electrode disposed on the bank, a first solder pattern disposed on the first electrode, a light-emitting element disposed on the first solder pattern, a first optical layer disposed around the bank and the light-emitting element, a second optical layer disposed around the first optical layer and having a contact hole overlapping at least a part of the contact electrode, a second electrode disposed on the light-emitting element, the first optical layer, and the second optical layer and extending to an inside of the contact hole, and a second solder pattern disposed between the second electrode and the contact electrode under the contact hole of the second optical layer.

The disclosure discloses a display device including a substrate, a circuit layer disposed on the substrate, and a plurality of banks disposed on the circuit layer. A plurality of light-emitting elements is disposed on the banks, each having a first electrode and a second electrode. A contact electrode is disposed on the bank and is electrically connected to the first electrode. The contact electrode includes a contact opening. An optical layer covers side surfaces of the plurality of light-emitting elements and the contact electrode, and includes a contact hole aligned with the contact opening of the contact electrode. The contact electrode is electrically connected with the second electrode through the contact hole of the optical layer. A transparent conductive layer is not present in the region of electrical connection between the contact electrode and the second electrode. This structure improves adhesion and maintains the structural integrity of the optical layer.

A display device includes a pixel circuit layer, a first light-emitting-element layer, a second light-emitting-element layer, and a third light-emitting-element layer. The pixel circuit layer includes a pixel circuit. The first light-emitting-element layer is disposed on the pixel circuit layer, and includes a first light emitting element and first conductive patterns spaced apart from the first light emitting element. The second light-emitting-element layer is disposed on the first light-emitting-element layer, and includes a second light emitting element spaced apart from the first light emitting element, and second conductive patterns connected to the first conductive patterns. The third light-emitting-element layer is disposed on the second light-emitting-element layer, and includes a third light emitting element spaced apart from the first light emitting element and the second light emitting element, and third conductive patterns connected to the second conductive patterns.

An image display device manufacturing method includes: providing a first substrate that includes: a circuit including a circuit element formed on a light-transmitting substrate, and a first insulating film covering the circuit; forming, on the first insulating film, a conductive layer including a portion made of a single crystal metal; forming, on the portion made of the single crystal metal, a semiconductor layer including a light-emitting layer; etching the semiconductor layer to form a light-emitting element; forming a second insulating film covering the conductive layer, the light-emitting element, and the first insulating film; forming a via passing through the first insulating film and the second insulating film; and electrically connecting the light-emitting element and the circuit element through the via at a light-emitting surface facing a surface of the light-emitting element on a first insulating film side.

A display device is provided with, a substrate, a display area and a non-display area, a pixel driving circuit in the display area on the substrate, an insulating layer on the pixel driving circuit, a bank disposed in a plurality of sub-pixels including a first sub-pixel and a second sub-pixel on the insulating layer, a first electrode disposed on the bank and including a central area, an edge area, and a reflection area between the central area and the edge area, and a light emitting device electrically connected to the first electrode on the first electrode and overlapping the bank. A width of a reflection area of the first electrode in the first sub-pixel is different from a width of a reflection area of the first electrode in the second sub-pixel.