CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. § 119(a) to Korean Patent Application No. 10-2018-0173120, filed in the Republic of Korea on Dec. 28, 2018, which is hereby expressly incorporated by reference into the present application.

BACKGROUND

Field of the Disclosure

The present disclosure relates to a display device with a through-hole that displays an image.

Discussion of the Related Art

With advancement in information-oriented societies, demands for display devices that display an image have increased in various types. Recently, various display devices including electroluminescence display devices, such as a liquid crystal display (LCD) device, a plasma display panel (PDP) device, an organic light emitting display (OLED) device and a quantum dot light emitting display (QLED), have been widely utilized.

An OLED device and a QLED device among such display devices employ a spontaneous emission system, have a viewing angle, a contrast ratio, and the like which are more excellent than an LCD device. Further, they can be decreased in weight and thickness and are advantageous in power consumption because a separate backlight is not required. An OLED device can be driven with a low DC voltage, has a high response speed, and has low manufacturing costs.

An OLED device includes pixels each including a light emitting element. The light emitting elements, however, can easily deteriorate due to external factors such as external moisture and oxygen.

SUMMARY

The present disclosure provides a display device with a through-hole that can prevent external moisture or oxygen from permeating into a light emitting element.

A display device with a through-hole according to an embodiment of the present disclosure includes a substrate that includes a display area in which pixels are disposed and a non-display area surrounding the display area, a first dam that surrounds a through-hole, a first conductive line that is formed along the first dam between the first dam and the pixels, and a second conductive line that is formed along the first dam between the first dam and the through-hole. The first conductive line and the second conductive line are electrically insulated from electrodes which are formed on the substrate.

According to the present disclosure, since a groove is formed in the inner dam, the light emitting layer and the second electrode are cut off. Accordingly, according to the present disclosure, it is possible to prevent moisture that might have permeated to the side surfaces of the light emitting layer and the second electrode, which are exposed from a through-hole, from diffusing into neighboring pixels disposed near the through-hole.

According to the present disclosure, since the first conductive line and the second conductive line are formed on the first side and the second side of the inner dam, respectively, it is possible to easily ascertain whether the light emitting layer and the second electrode have been cut off using the conductive lines. Accordingly, it is possible to improve reliability of products.

Advantageous effects of the present disclosure are not limited to the above-mentioned advantageous effects and other advantageous effects which have not been mentioned above will be apparently understood by those skilled in the art from the following description.

