BACKGROUND

Field

Exemplary embodiments of the invention relate generally to a display apparatus and, more specifically, to a flexible display apparatus.

Discussion of the Background

In general, a display apparatus includes a display panel, which displays an image by using light, and a backlight unit, which provides light to the display panel. The display panel includes a plurality of pixel cells each including a switching element, a pixel electrode, a common electrode, and a color layer. As the display panel, a liquid crystal display panel is widely used. Light provided by the backlight unit passes through liquid crystals and the color layer, and the display apparatus may display a color image by mixture of colored lights. The color layer for displaying a color image includes, for example, a red color filter, a green color filter, and a blue color filter. By mixing of light having passed through the color filters, various colors may be displayed. As such, in order to realize light of various colors for displaying an image, the color filters are needed.

Moreover, liquid crystals may require polarization, and thus, a polarizing filter and various optical films are typically needed. As such, the display apparatus becomes thick and heavy.

The above information disclosed in this Background section is only for understanding of the background of the inventive concepts, and, therefore, it may contain information that does not constitute prior art.

SUMMARY

A display apparatus including a plurality of light emitting diodes constructed according to exemplary embodiments of the invention are capable of obviating the need of at least one or more components of a conventional display apparatus, such as liquid crystals, a backlight unit, a polarizing filter and, a color filter.

Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts.

A display apparatus according to an exemplary embodiment includes a flexible substrate, a plurality of light emitting devices spaced apart from one another and disposed on the flexible substrate, and a light shielding layer disposed between the light emitting devices, and partially covering the light emitting devices to define light extraction surfaces, in which a distance between adjacent light extraction areas is the same.

The light emitting devices may be spaced apart from one another by a first distance in a first direction, and by a second distance in a second direction perpendicular to the first direction, and the first distance may be equal to or greater than the second distance.

The substrate may be configured to be rolled in the first direction.

The first distance may be greater than the second distance, and a length of each light emitting device in the second direction may be greater than a length of a corresponding light extraction area in the second direction.

The display apparatus may further include a common circuit electrically coupled in common with the light emitting devices, in which the common circuit may be disposed on the substrate and have a mesh structure.

The display apparatus may further include a protection layer covering the light emitting devices on the substrate, the protection layer including a material that transmits visible light.

A hardness of the substrate may be less than a hardness of each of the light emitting devices.

Each of the light emitting devices may include a first light emitting part, a second light emitting part, and a third light emitting part horizontally spaced apart from one another on the substrate.

Each of the light emitting devices may include a first light emitting part, a second light emitting part, and a third light emitting part, which are vertically stacked on the substrate.

The third light emitting part may have a width less than that of the second light emitting part, and the second light emitting part has a width less than that of the first light emitting part.

Each of the light emitting devices may have a width that gradually decreases in an upward direction from one surface of the substrate.

A light emitting device according to another exemplary embodiment includes a first insulating layer including a first area and a second area having a greater thickness than the first area, a light emitting stacked structure including a plurality of light emitting parts disposed one over another on the first area of the first insulating layer, a plurality of via patterns disposed on the light emitting stacked structure, and a plurality of pads electrically connected to the light emitting stacked structure through the via patterns, respectively, in which at least one of the pads overlaps the second area of the first insulating layer and one of the via patterns.

The light emitting parts may be sequentially disposed along a first direction, and the via patterns may have the same length along the first direction.

The second area of the first insulating layer may surround the light emitting stacked structure.

The light emitting parts may be configured to emit light towards the first area of the first insulating layer.

The pads may contact the second area of the first insulating layer and one of the via patterns.

Each of the light emitting parts may include a first semiconductor layer, an active layer, and a second semiconductor layer, the first semiconductor layer of one of the light emitting parts may have a substantially flat surface, and each of the via patterns may be disposed on the substantially flat surface of the first semiconductor layer.

The light emitting device may further include a second insulating layer disposed between the light emitting stacked structure and the second area of the first insulating layer, in which the at least one of the pads may contact each of the second area of the first insulating layer, the second insulating layer, and one of the via patterns.

At least a portion of each pad does may not overlap the light emitting stacked structure.

The light emitting device may further include a substrate including a plurality of electrodes respectively connected to the pads, in which a hardness of the substrate may be less than a hardness of the light emitting stacked structure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

