This application claims priority to Korean patent application No. 10-2019-0058299, filed on May 17, 2019, and all the benefits accruing therefrom under 35 U.S.C. § 119, the content of which in its entirety is herein incorporated by reference.

BACKGROUND

1. Field

Various exemplary embodiments of the invention relate to a display device.

2. Description of Related Art

Display devices used for a computer monitor, a television (“TV”), a cellphone, and the like, include an organic light-emitting display, which emits light by itself, a liquid crystal display (“LCD”), which desires a separate light source, and the like.

Display devices are being used not only for computer monitors and TVs but also for personal portable devices, and a range of application thereof becomes more diverse. Accordingly, research on a display device having a large display area and a reduced volume and weight is being conducted.

Also, recently, a rollable display device receives a lot of attention as a next-generation display device. The rollable display device is produced in such a way that a display unit, lines, and the like are formed on a flexible substrate made of a flexible material, such as plastic or the like, thereby enabling an image to be displayed even when the display device is rolled.

SUMMARY

Various exemplary embodiments of the invention are directed to a display device that enables a partial area of a display unit to be used as an information display area by forming a transparent window in the housing of a rollable display device.

Furthermore, various exemplary embodiments of the invention are directed to a display device that may guide a display unit to be prevented from deviating from a designed position when the display unit is wound or unwound.

An exemplary embodiment of the invention provides a display device including a display unit which displays an image, a roller to which an end of the display unit is fixed and which winds or unwinds the display unit by rotating, a housing which accommodates the display unit and the roller, and a guide member which is provided inside the housing and guides a movement of the display unit.

In an exemplary embodiment, the guide member may include an extension part extending in a direction from a first side to a second side of the housing.

In an exemplary embodiment, the guide member may include a first extension part extending in a direction from an upper side to a lower side of the housing.

In an exemplary embodiment, the guide member may further include a second extension part extending in a direction from a first side surface to a second side surface of the housing.

In an exemplary embodiment, an end part of the guide member may extend towards the roller.

In an exemplary embodiment, the display unit may include a display panel, including display elements, and a support member joined to a surface of the display panel and including a metal material.

In an exemplary embodiment, the guide member may include a magnetic part provided in an area thereof and magnetically joined to the support member.

In an exemplary embodiment, the magnetic part may be controlled to be in a turn-off state when the display unit is moving and be controlled to be in a turn-on state when the display unit is not moving.

In an exemplary embodiment, the magnetic part may be disposed along edges of the guide member.

In an exemplary embodiment, the support member may have a multi joint structure including areas rotatably coupled.

In an exemplary embodiment, the magnetic part may be patterned in the guide member correspond to the shapes of the areas.

In an exemplary embodiment, the housing may include a window including a transparent material and provided on a surface of the housing.

In an exemplary embodiment, the display unit may display different images in a first area, disposed outside the housing, and in a second area, disposed adjacent to the window inside the housing, when the display unit is unwound.

In an exemplary embodiment, the display unit may display a piece of information in a first area disposed adjacent to the window inside the housing when the display unit is wound.

In an exemplary embodiment, the first area may be driven in an always-on-display (“AoD”) mode.

An exemplary embodiment of the invention provides a display device including a display unit which displays an image, a roller to which an end of the display unit is fixed and which winds or unwinds the display unit by rotating, a housing which accommodates the display unit and the roller, the housing including a window including a transparent material on one surface thereof, and a guide member which is provided inside the housing and guides a movement of the display unit.

In an exemplary embodiment, the display unit may display different images in a first area, disposed outside the housing, and a second area, disposed adjacent to the window inside the housing, when the display unit is unwound.

In an exemplary embodiment, the display unit may display a piece of information in a first area, disposed adjacent to the window inside the housing, when the display unit is wound.

In an exemplary embodiment, the housing may further include a guide member which is provided inside the housing and configured to guide the movement of the display unit.

In an exemplary embodiment, the display unit may be guided to move between the one surface of the housing and the guide member.

