Display Devices

Abstract

The present application relates to a display device, which includes: a display unit that displays an image; a roller to which an end of the display unit is fixed and the roller is rotated to roll or unroll the display unit; a housing that accommodates the display unit and the roller; and a guide member that is disposed inside the housing and guides movement of the display unit.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2019-0058299, filed on May 17, 2019, and all rights and benefits therefrom, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] Various exemplary embodiments of the present invention relate to a display device. Background Art

[0004] Display devices used for computer monitors, televisions ("TV"), cellular phones, and the like include organic light emitting displays that emit light by themselves, liquid crystal displays ("LCD") that require a separate light source, and the like.

[0005] Display devices are used not only for computer monitors and TVs but also for personal portable devices, and their application ranges are becoming more diverse. Therefore, research on display devices having a large display area and reduced volume and weight is being conducted.

[0006] In addition, recently, a rollable display device has received much attention as a next-generation display device. The rollable display device is manufactured by forming a display unit, wires, etc. on a flexible substrate made of a flexible material such as plastic, so that an image can be displayed even when the display device is rolled up. Summary of the invention

[0007] Various exemplary embodiments of the present 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 a housing of a rollable display device.

[0008] Furthermore, various exemplary embodiments of the present invention are directed to a display apparatus which can guide a display unit to prevent deviation from a designed position when the display unit is rolled or unfolded.

[0009] An exemplary embodiment of the present invention provides a display device including: a display unit that displays an image; a roller to which an end of the display unit is fixed and which rolls or unrolls the display unit by rotating; a housing that accommodates the display unit and the roller; and a guide member that is disposed inside the housing and guides movement of the display unit.

[0010] In an exemplary embodiment, the guide member may include an extending portion extending in a direction from the first side of the housing to the second side of the housing.

[0011] In an exemplary embodiment, the guide member may include a first extending portion extending in a direction from an upper side of the housing to a lower side of the housing.

[0012] In an exemplary embodiment, the guide member may further include a second extending portion extending in a direction from the first side surface of the housing to the second side surface of the housing.

[0013] In an exemplary embodiment, an end portion of the guide member may extend toward the roller.

[0014] In an exemplary embodiment, a display unit may include a display panel having a display element, and a support member coupled to a surface of the display panel and including a metal material.

[0015] In an exemplary embodiment, the guide member may include a magnetic portion provided in a region of the guide member and magnetically coupled to the support member.

[0016] In an exemplary embodiment, when the display unit moves, the magnetic portion may be controlled to be in a closed state, and when the display unit does not move, the magnetic portion may be controlled to be in an open state.

[0017] In an exemplary embodiment, the magnetic portion may be disposed along an edge of the guide member.

[0018] In an exemplary embodiment, the support member may have a multi-jointed structure including a rotatably coupled region.

[0019] In an exemplary embodiment, the magnetic portion may be patterned in the guide member to correspond to the shape of the rotatably coupled region.

[0020] In an exemplary embodiment, the housing may include a window including a transparent material and disposed on a surface of the housing.

[0021] In an exemplary embodiment, when the display unit is unfolded, the display unit may display different images in a first area disposed outside the housing and in a second area disposed inside the housing adjacent to the window.

[0022] In an exemplary embodiment, when the display unit is rolled up, the display unit may display at least one piece of information in a third area disposed adjacent to the window inside the housing.

[0023] In an exemplary embodiment, the third area may be driven in an always-on display ("AoD") mode.

[0024] An exemplary embodiment of the present invention provides a display device including: a display unit that displays an image; a roller to which an end of the display unit is fixed and that rolls or unrolls the display unit by rotating; a housing that accommodates the display unit and the roller, the housing including a window including a transparent material on one surface thereof; and a guide member that is disposed inside the housing and guides movement of the display unit.

[0025] In an exemplary embodiment, when the display unit is unfolded, the display unit may display different images in a first area disposed outside the housing and in a second area disposed inside the housing adjacent to the window.

[0026] In an exemplary embodiment, when the display unit is rolled up, the display unit may display at least one piece of information in a third area disposed adjacent to the window inside the housing.

[0027] In an exemplary embodiment, the housing may further include a guide member disposed inside the housing and configured to guide movement of the display unit.

[0028] In an exemplary embodiment, the display unit may be guided to move between one surface of the housing and the guide member. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other exemplary embodiments, advantages, and features of the present disclosure will become more apparent by describing exemplary embodiments of the present disclosure in more detail with reference to the attached drawings.

[0030] Figure 1A and Figure 1B is a perspective view of an exemplary embodiment of a display device according to the present invention.

[0031] Figure 2 is a cross-sectional side view of an exemplary embodiment of a display device according to the present invention.

[0032] Figure 3 It is shown Figure 2 A perspective view of an exemplary embodiment of a guide member is shown in FIG.

[0033] Figure 4 It is shown Figure 2 A perspective view of another exemplary embodiment of a guide member is shown in FIG.

[0034] Figure 5 It is shown Figure 2 A perspective view of another exemplary embodiment of a guide member is shown in FIG.

[0035] Figure 6 It is shown Figure 2 A cross-sectional side view of another exemplary embodiment of a guide member is shown in FIG.

[0036] Figure 7 is a cross-sectional side view of another exemplary embodiment of a display device according to the present invention.

[0037] Figure 8 is a cross-sectional side view of another exemplary embodiment of a display device according to the present invention.

[0038] Fig. 9 It is shown Figure 8 A front view of an exemplary embodiment of a support member is shown in FIG.

[0039] Fig.10 It is shown Figure 8 A front view of another exemplary embodiment of a support member is shown in FIG.

[0040] Fig.11A It is shown Figure 8 sectional view of an exemplary embodiment of a display unit shown in FIG.

[0041] Fig. 11B It is shown Figure 8 0026] A cross-sectional view of another exemplary embodiment of a display unit is shown in FIG.

[0042] Fig. 11C It is shown Figure 8 0026] A cross-sectional view of yet another exemplary embodiment of a display unit is shown in FIG.

[0043] Fig.12 is a cross-sectional side view of yet another exemplary embodiment of a display device according to the present invention.

[0044] FIG. 13A to FIG. 13C It is shown Fig.12 A front view of an exemplary embodiment of a magnetic portion is shown in FIG.

[0045] Fig.14 It is shown Fig.12 A front view of another exemplary embodiment of a magnetic portion is shown in FIG.

[0046] Fig.15A and Fig. 15B is a view showing an exemplary embodiment of a display screen of a display device according to the present invention.

[0047] Fig.16A and Fig. 16B is a front view of still another exemplary embodiment of a display device according to the present invention.

[0048] Fig.17 is a front view of still another exemplary embodiment of a display device according to the present invention.

[0049] Fig.18is a cross-sectional view showing an exemplary embodiment of a stack structure of a display unit according to the present invention. DETAILED DESCRIPTION

[0050] It should be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

[0051] It should be understood that although the terms "first", "second", "third", etc. can be used herein to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the "first element", "first component", "first region", "first layer" or "first part" discussed below can be referred to as the second element, second component, second region, second layer or second part without departing from the teachings herein.

[0052] The terms used herein are only for the purpose of describing specific exemplary embodiments, and are not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include plural forms, including "at least one", unless the context clearly indicates otherwise. "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It will be further understood that when used in this specification, the terms "comprises" and / or "comprising" or "includes" and / or "including" specify the presence of stated features, regions, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, components, and / or groups thereof.

[0053] In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element as shown in the drawings. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation depicted in the drawings. For example, if the device in one of the drawings is turned over, the element described as being on the "lower" side of the other elements will then be oriented on the "upper" side of the other elements. Therefore, the exemplary term "lower" can include both "lower" and "upper" orientations, depending on the specific orientation of the drawings. Similarly, if the device in one of the drawings is turned over, the element described as being "below" or "below" the other elements will then be oriented "above" the other elements. Therefore, the exemplary term "below" or "below" can include both upper and lower orientations.

[0054] For ease of description, spatially relative terms such as "below," "beneath," "lower," "above," "upper," etc. may be used herein to describe the relationship of one element or feature to another element or feature as shown in the accompanying drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, elements described as being "below" or "below" other elements or features will then be oriented "above" the other elements or features. Thus, the exemplary term "below" may encompass both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0055] As used herein, "about" or "approximately" includes the stated value and the mean within an acceptable deviation range of the particular value as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value.

[0056] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have meanings consistent with their meanings in the context of the relevant art and the present disclosure, and should not be understood to have idealized or overly formalized meanings unless explicitly defined as such in this article.

[0057] Exemplary embodiments are described herein with reference to cross-sectional views, which are schematic diagrams of idealized embodiments. Therefore, variations in the shapes illustrated, such as due to manufacturing techniques and / or tolerances, should be expected. Therefore, the embodiments described herein should not be interpreted as being limited to the specific shapes of the regions shown herein, but rather include deviations in shapes such as those caused by manufacturing. For example, a region shown or described as flat may typically have rough and / or nonlinear features. In addition, the sharp angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the precise shapes of the regions, and are not intended to limit the scope of the claims.

[0058] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same elements throughout.

[0059] Figure 1A and Figure 1B is a perspective view of an exemplary embodiment of a display device according to the present invention.

[0060] Reference Figure 1A and Figure 1B , a display device 1 in an exemplary embodiment of the present invention includes a display unit DP and a housing HP.

[0061] In the specification, the first direction axis D1, the second direction axis D2, and the third direction axis D3, which are perpendicular to each other, may correspond to the x-axis, the y-axis, and the z-axis, respectively. However, the directions of the first direction axis D1, the second direction axis D2, and the third direction axis D3 are relative and may be changed to other directions. Hereinafter, the first direction, the second direction, and the third direction are the directions of the first direction axis D1, the second direction axis D2, and the third direction axis D3, and may be represented by the same reference numerals.

[0062] The display unit DP is configured to display an image to a user. In an exemplary embodiment, for example, a display element, a circuit, a line, a component, etc. for driving the display element may be provided in the display unit DP. Here, the display device 1 is a rollable display device, and the display unit DP can be rolled or unfolded. In an exemplary embodiment, for example, the display unit DP may include a display panel having flexibility and a supporting member so that the display unit DP can be rolled or unfolded.

[0063] The housing HP is a shell capable of accommodating the display unit DP. The housing HP may include a front surface FA and a rear surface RA defined by a second direction axis D2 and a third direction axis D3. The front surface FA and the rear surface RA are opposite to each other. The front surface FA and the rear surface RA may be distinguished from each other by the first direction axis D1. In an exemplary embodiment, for example, the front surface FA is oriented in a first direction, and the rear surface RA is oriented in a direction opposite to the first direction.

[0064] The housing HP may further include an upper surface UA and a lower surface BA extending between the front surface FA and the rear surface RA. The upper surface UA and the lower surface BA are defined by the first direction axis D1 and the second direction axis D2. The upper surface UA and the lower surface BA may be opposite to each other. Here, the upper surface UA is oriented in a third direction, and the lower surface BA is oriented in a direction opposite to the third direction.

[0065] The housing HP may further include two side surfaces SA1 and SA2 surrounded by the front surface FA, the upper surface UA, the rear surface RA, and the lower surface BA. The two side surfaces SA1 and SA2 may be defined by the first direction axis D1 and the third direction axis D3.

[0066] In the exemplary embodiment, for example, the housing HP may have a rectangular parallelepiped shape extending in the second direction. However, the technical spirit of the present invention is not limited thereto, and the housing HP may have any of various shapes, such as a cube, etc.

[0067] An opening HPO is defined in the housing HP so that the display unit DP can move inside or outside the housing HP. The opening HPO may be defined in the upper surface UA of the housing HP. In an exemplary embodiment, the opening HPO may be disposed closer to the front surface FA of the housing HP. The display unit DP may move upward and downward (i.e., in a third direction and in a direction opposite to the third direction) by passing through the opening HPO of the housing HP.

[0068] The display unit DP can be accommodated in the housing HP by being rolled up, and at least some areas of the display unit DP can be disposed outside the housing HP by being unfolded. In an exemplary embodiment, for example, the display unit DP of the display device 1 can be switched from a fully unfolded state to a fully rolled up state, or from a fully rolled up state to a fully unfolded state.

[0069] Figure 1AThe display unit DP of the display device 1 is shown to be fully unfolded. In the fully unfolded state, a first area DP1 of the display unit DP of the display device 1 may be disposed outside the housing HP, and a second area DP2 of the display unit DP different from the first area DP1 may be disposed inside the housing HP. That is, the fully unfolded state may be defined as a state in which the display unit DP is disposed outside the housing HP to the greatest extent possible by unfolding so as to enable the user to view an image through the display device 1, and in which the display unit DP can no longer be unfolded.

[0070] Figure 1B The display unit DP of the display device 1 is shown to be completely rolled up. In the completely rolled-up state, the entire display unit DP of the display device 1 is accommodated in the housing HP and can no longer be rolled up. That is, the completely rolled-up state can be defined as a state in which, when the user does not view an image through the display device 1, the display unit DP is not disposed outside the housing HP, but is accommodated in the housing HP by being rolled up. When the user does not view an image through the display device 1, it is advantageous in terms of appearance not to dispose the display unit DP outside the housing HP, whereby the volume of the display device 1 can be reduced and the display device 1 can be easily moved.

[0071] Even when the display unit DP is fully rolled up, the display device 1 can play content such as music, radio broadcasts, etc. In such an exemplary embodiment, the display device 1 can operate like a sound box (sound bar) through the built-in speaker in the housing HP. In addition, in such an exemplary embodiment, the display device 1 can display short information through the window HPW to be described later.

[0072] In various exemplary embodiments of the present invention, a transparent window HPW may be provided on the front surface FA of the housing HP. In exemplary embodiments, the window HPW may include, for example, transparent glass, plastic, or the like.

[0073] An area of ​​the display unit DP disposed within the housing HP may be visible from the outside through the window HPW. In an exemplary embodiment, for example, when the display unit DP is fully unfolded, a second area DP2 disposed within the housing HP may be visible to the user through the window HPW. Furthermore, when the display unit DP is fully rolled up, a third area DP3 disposed adjacent to the window HPW may be visible to the user through the window HPW.

[0074] In the above exemplary embodiment, the area exposed by the window HPW may be controlled so as to display an image different from the images displayed in other areas. In the exemplary embodiment, for example, in the area exposed by the window HPW, location information, date information, time information, weather information, and information about a currently playing or displayed media item (e.g., an image, music, a radio broadcast, etc.) may be displayed in an always-on display ("AOD") mode. However, the technical spirit of the present invention is not limited to the above examples. Fig.15A and Fig. 15B The specific implementation of the above operation is described.

[0075] In order to switch the display unit DP to a fully unfolded state or a fully rolled state, a driver for rolling or unfolding the display unit DP may be provided inside the housing HP. In an exemplary embodiment, the driver may include a roller for rolling the display unit DP, a motor for controlling the rotation of the roller, etc., but the configuration of the driver is not limited thereto.

[0076] Figure 2 is a cross-sectional side view of an exemplary embodiment of a display device according to the present invention. Figure 3 It is shown Figure 2 A perspective view of an exemplary embodiment of a guide member is shown in FIG. Figure 4 It is shown Figure 2 A perspective view of another exemplary embodiment of a guide member is shown in FIG. Figure 5 It is shown Figure 2 A perspective view of another exemplary embodiment of a guide member is shown in FIG. Figure 6 It is shown Figure 2 A cross-sectional side view of another exemplary embodiment of a guide member is shown in FIG.

[0077] Figures 3 to 5 Only the housing HP and the guide member GP are shown, and other components are omitted to show an exemplary shape of the guide member GP provided in the housing HP. In addition, only the area visible from the outside through the window HPW and the opening HPO defined in the housing HP is shaded to highlight.

[0078] Reference Figure 2In an exemplary embodiment of the present invention, a guide member GP may be provided in the housing HP of the display device 1, and the guide member GP may prevent the display unit DP from colliding with the opening HPO when the display unit DP moves upward and downward (i.e., in a third direction and a direction opposite to the third direction), and may guide the display unit DP to move in a designed position. The guide member GP may be provided adjacent to the front surface FA of the housing HP, and the unfolded display unit DP may be guided between the front surface FA of the housing HP and the guide member GP. Therefore, the display unit DP can move upward and downward in a state where the display unit DP is closely adjacent to the front surface FA of the housing HP.

[0079] In an exemplary embodiment of the present invention, Figure 3 As shown in , the guide member GP may be provided as a single extension GP1, which is provided so that an area of ​​the upper surface UA of the housing HP extends to the interior of the housing HP. In an exemplary embodiment, for example, the guide member GP may be provided as a single extension GP1 extending from at least a portion of an edge E of an opening HPO defined in the upper surface UA of the housing HP toward its lower surface BA. Here, one edge E may be an edge provided to be close to the rear surface RA of the housing HP. When the opening HPO is defined in the upper surface UA to be adjacent to the front surface FA of the housing HP, the extension GP1 extending from one edge E of the opening HPO may also be defined to be adjacent to the front surface FA of the housing HP. That is, the distance W2 from the guide member GP to the front surface FA of the housing HP is shorter than the distance W1 from the guide member GP to the rear surface RA of the housing HP.

[0080] In such an exemplary embodiment, the interior of the housing HP may be partitioned into two areas AA1 and AA2 by the guide member GP, and among the partitioned areas, the area AA2 adjacent to the front surface FA of the housing HP may include an opening HPO in the upper surface UA. The display unit DP is guided along the interior of the area AA2 in which the opening HPO is formed, and the first area DP1 of the display unit DP may be exposed by passing upward through the opening HPO.

[0081] In another exemplary embodiment, Figure 4As shown in , the guide member GP can be provided as two extensions GP1 and GP2, each of which extends from an area of ​​the upper surface UA of the housing HP (e.g., a portion of an edge E of the opening HPO) to the interior of the housing HP. Of the extensions GP1 and GP2, the first extension GP1 can be provided adjacent to one side surface SA2 of the housing HP, and the second extension GP2 can be provided adjacent to the other side surface SA1 of the housing HP. In such an exemplary embodiment, the opposite side edges of the display unit DP can be guided between the front surface FA of the housing HP and the corresponding extensions GP1 and GP2. When as Figure 4 When the guide member GP is set as shown in Figure 3 Compared with the exemplary embodiment of the present invention, the up / down movement of the display unit DP may be guided, and more space may be ensured in the housing HP, so that the usability of the housing HP may be improved.

[0082] In an exemplary embodiment, if Figure 5 As shown in , the guide member GP can be provided as two extensions GP1 and GP2 and two additional extensions GP3 and GP4, each of the two extensions GP1 and GP2 extending from an area of ​​the upper surface UA of the housing HP (e.g., an edge E of the opening HPO) to the inside, and each of the additional two extensions GP3 and GP4 extending from an area of ​​each of the opposite side surfaces SA2 and SA1 of the housing HP to the inside. In such an exemplary embodiment, the opposite side edges of the display unit DP can be guided between the front surface FA of the housing HP and the four extensions GP1, GP2, GP3, and GP4. When as Figure 5 When the guide member GP is set as shown in Figure 4 Compared to the exemplary embodiment shown in FIG. 1 , the inner space of the housing HP can be better utilized, and the portion of the guide member GP visible from the outside through the window HPW of the front surface FA can be minimized.

[0083] However, the shape and number of the guide members GP are not limited to Figures 3 to 5 That is, the shape and number of the guide member GP may be variously changed as long as the structure thereof can guide the display unit DP to be in close proximity to the front surface FA of the housing HP while the display unit DP moves upward and downward.

[0084] Figures 2 to 5 An example is shown in which the guide member GP extends linearly from the upper surface UA of the housing HP, but the technical spirit of the present invention is not limited thereto. Figure 6As shown in , the guide member GP may be arranged so that its end EP adjacent to the lower surface BA of the housing HP extends in a curve toward the roller R, that is, toward the rear surface RA of the housing HP. In this case, since the display unit DP moves along the curved surface when the display unit DP is guided at the end EP of the guide member GP, the display unit DP can be prevented from being damaged.

[0085] Figures 2 to 6 An example is shown in which the guide member GP extends from at least one side of the housing HP to the other side of the housing HP, but the technical spirit of the present invention is not limited thereto. That is, in other exemplary embodiments of the present invention, the guide member GP may be indirectly connected to at least one side of the housing HP by a coupling member or the like.

[0086] In various exemplary embodiments of the present invention, the guide member GP may be configured such that at least one region thereof has magnetic properties. Due to the magnetic properties of the guide member GP, the display unit DP moving along the guide member GP may be stably supported. Figure 12 to Figure 14 Such exemplary embodiments are described in more detail.

[0087] Return to reference Figure 2 , a driver for rolling or unfolding the display unit DP may be disposed inside the housing HP.

[0088] In an exemplary embodiment, the driver may include a roller R. The roller R winds or unwinds the display unit DP fixed to the roller R by rotating in the first rotation direction DR1 or the second rotation direction DR2. In an exemplary embodiment, the roller R may have a cylindrical shape and may be disposed adjacent to the lower surface BA of the housing HP. In an exemplary embodiment, a fixing member or the like for fixing the roller R at a designed position may also be provided.

[0089] The bottom edge of the display unit DP may be fixed to the roller R. When the roller R is rotated in the first rotation direction DR1 (ie, in the clockwise direction) by a motor or the like, the display unit DP may be wrapped around the roller R such that the rear surface of the display unit DP closely adheres to the surface of the roller R.

[0090] In contrast, when the roller R is rotated in the second rotation direction DR2 (ie, in the counterclockwise direction) by the motor or the like, the display unit DP wound around the roller R is unwound from the roller R to be exposed to the outside of the housing HP.

[0091] In an exemplary embodiment, a driver having a structure different from that of the above-described driver may be applied in the display device 1. That is, as long as the driver can roll or unroll the display unit DP, the configuration of the driver may be changed, some components of the driver may be omitted, or another component may be added to the driver.

[0092] Figure 7 1 is a cross-sectional side view of another exemplary embodiment of a display device according to the present invention. In addition to the drive of the display device 1' further including an auxiliary roller SR, Figure 7 The display device 1' and Figure 2 The display device 1 is the same as that of FIG. 1 , and therefore repeated description will be omitted.

[0093] Reference Figure 7 , an auxiliary roller SR may be disposed between the front surface FA of the housing HP and the roller R. When the roller R rotates, the auxiliary roller SR rotates in the same direction as the roller R, thereby helping the display unit DP to move. The auxiliary roller SR may support the display unit DP so that when the display unit DP is rolled or unrolled by the roller R, the display unit DP remains flat along the lower surface BA of the housing HP.

[0094] Figure 7 Only a single auxiliary roller SR is shown, but in various exemplary embodiments, a plurality of auxiliary rollers SR may be provided. Figure 7 An example is shown in which the auxiliary roller SR is smaller than the roller R, but the size of the auxiliary roller SR may be equal to or larger than the size of the roller R in various exemplary embodiments.

[0095] Figure 8 is a cross-sectional side view of another exemplary embodiment of a display device according to the present invention. Fig. 9 It is shown Figure 8 A front view of an exemplary embodiment of a support member is shown in FIG. Fig.10 It is shown Figure 8 A front view of another exemplary embodiment of a support member is shown in FIG.

[0096] In addition to the display unit DP being provided with a display panel 110 and a support member 120, Figure 8 The display device 1" and Figure 2 The display device 1 is the same as that of FIG. 1 , and therefore repeated description will be omitted.

[0097] Reference Figure 8 , the display unit DP may include a display panel 110 and a support member 120 coupled to a rear surface of the display panel 110 .

[0098] The display panel 110 may display an image. The display panel 110 may include a display element for displaying an image, a driving element for driving the display element, a line for transmitting various types of signals to the display element and the driving element, etc. The display element may be defined differently according to the type of the display panel 110, and may be, for example, an organic light emitting element, a liquid crystal display element, etc. Since the display device 1″ in the exemplary embodiment of the present invention is a rollable display device, the display panel 110 may be implemented as a flexible display panel.

[0099] The support member 120 is coupled to the rear surface of the display panel 110, thereby serving as a rear cover. The support member 120 may include a rigid material, but at least a portion thereof may have flexibility to be rolled or unrolled together with the display panel 110. Fig. 9 As shown in , for example, the support member 120 may include a flexible plastic material such as polyimide ("PI"), etc. In such an exemplary embodiment, an opening OP may be defined in the support member 120, so that the support member 120 may be more flexibly changed according to stress applied to the display unit DP.

[0100] In an alternative exemplary embodiment, Fig.10 As shown in, for example, the support member 120 may include a material such as metal, plastic, etc., and may include a region A that is coupled to be rotatable. That is, the support member 120 may have a multi-joint structure and include a material such as metal, plastic, etc. In such an exemplary embodiment, the regions A may be coupled to each other using a hinge or an adhesive that is flexible when cured. In such an exemplary embodiment, the regions A may rotate toward each other in response to a change in the shape of the display unit DP.

[0101] In an exemplary embodiment, the respective regions A may be alternately arranged in the third direction along the third direction axis D3. In an exemplary embodiment, each of the regions A may have, for example, a rod shape, but its shape is not limited thereto. When the display unit DP is fully unfolded, the respective regions A of the support member 120 connected to the display unit DP may be spaced apart from each other or arranged so that their side surfaces contact each other. However, the technical spirit of the present invention is not limited to this example.

[0102] Such a support member 120 prevents the display unit DP from vibrating, and can keep the display unit DP flat when the display unit DP moves up and down.

[0103] Fig.11A It is shown Figure 8 sectional view of an exemplary embodiment of a display unit shown in FIG.

[0104] Reference Fig.11A, the display panel 110 includes a substrate 111 , a display layer 200 and a window 115 (or a window layer, a cover layer).

[0105] The substrate 111 is a base member for supporting various configurations of the display panel 110, and may include an insulating material. In an exemplary embodiment, the substrate 111 may include a flexible material so that the display panel 110 can be rolled or unrolled, and may include, for example, a plastic material such as PI, polyamide ("PA"), polyethylene terephthalate ("PET"), and the like.

[0106] The display layer 200 includes elements and lines forming pixels and layers for insulating or protecting the elements and lines. The display layer 200 may include switching elements such as transistors and light emitting elements such as organic light emitting diodes ("OLEDs"). Fig.18 The detailed structure of the display layer 200 is described in detail.

[0107] The window 115 is disposed on the display layer 200. The window 115 protects the elements and lines forming the pixel and the layers for insulating or protecting the elements and lines. The window 115 can transmit images from the pixel while protecting the organic light emitting element of the pixel from external moisture, oxygen, impact, etc., and can provide protection from external impact and scratches.

[0108] The first adhesive layer AD1 may be disposed between the display layer 200 and the window 115. The first adhesive layer AD1 may bond the display layer 200 and the window 115. The first adhesive layer AD1 includes an adhesive material, and may be a thermosetting adhesive or a self-curing adhesive. In an exemplary embodiment, the first adhesive layer AD1 may include, for example, an optically clear adhesive ("OCA"), a pressure sensitive adhesive ("PSA"), etc., but the first adhesive layer AD1 is not limited thereto.

[0109] The first adhesive layer AD1 may be provided to cover the display layer 200 and the pixel unit. In such an exemplary embodiment, the first adhesive layer AD1 may protect the light-emitting element of the pixel from external moisture, oxygen, impact, etc. together with the window 115. Here, the first adhesive layer AD1 may further include a hygroscopic agent. The hygroscopic agent may be particles having hygroscopic properties, and may absorb moisture, oxygen, etc. from the outside, thereby minimizing moisture and oxygen penetrating the pixel.

[0110] although Fig.11A Although not shown in the figure, a light-transmitting film may be further disposed above the window 115. The light-transmitting film may play a role in protecting the front surface of the display panel 110 and minimizing reflection of external light incident on the display panel 110. In an exemplary embodiment, the light-transmitting film may be, for example, at least one of a PET film, an anti-reflection film, a polarizing film, and a transmittance controllable film, but the light-transmitting film is not limited thereto.

[0111] The support member 120 is disposed under the substrate 111. The support member 120 may be disposed to contact the substrate 111 of the display panel 110. The structure of the support member 120 is as described above. That is, the support member 120 may be provided with an area A disposed along the third direction axis D3. In various exemplary embodiments, the support member 120 may be bonded to the display panel 110 by the second adhesive layer AD2.

[0112] In such an exemplary embodiment, the second adhesive layer AD2 is disposed between the substrate 111 and the support member 120. The second adhesive layer AD2 may bond the substrate 111 and the support member 120. The second adhesive layer AD2 includes an adhesive material, and may be a thermosetting adhesive or a self-curing adhesive. In an exemplary embodiment, the second adhesive layer AD2 may include, for example, OCA, PSA, etc., but the second adhesive layer AD2 is not limited thereto. In another exemplary embodiment of the present invention, the support member 120 may be coupled to the display panel 110 using a physical coupling method, and may be detachable from the display panel 110. In such an exemplary embodiment, the second adhesive layer AD2 may be omitted.

[0113] Fig. 11B It is shown Figure 8 0026] A cross-sectional view of another exemplary embodiment of a display unit is shown in FIG.

[0114] refer to Fig. 11B , the display panel 110 may include a substrate 111 , a display layer 200 , and a window 115 .

[0115] The substrate 111 may be a flexible substrate including a polymer film. In an exemplary embodiment, the substrate 111 may include, for example, plastic such as PI, PA, PET, or the like.

[0116] The display layer 200 includes elements and lines forming pixels and layers for insulating or protecting the elements and lines. The display layer 200 may include switching elements such as transistors and light-emitting elements such as OLEDs. Fig.18 The detailed structure of the display layer 200 is described in detail.

[0117] The rubber layers 310 and 320 may be disposed above the display layer 200 and below the substrate 111 .

[0118] The first rubber layer 310 may include a coating type rubber. In an exemplary embodiment, the first rubber layer 310 may be provided by coating the display layer 200 with rubber and curing the rubber. The first rubber layer 310 is bonded to the display layer 200 when cured, thereby bonding to the display layer 200 without using a separate adhesive.

[0119] The second rubber layer 320 may be provided by laminating a prepared rubber film on the substrate 111 using an adhesive, or may include a coating type rubber like the first rubber layer 310 .

[0120] The rubber of the rubber layers 310 and 320 includes highly stretchable rubber. In an exemplary embodiment, for example, the rubber may include urethane-based rubber such as polyurethane ("PU"), silicon-based rubber such as polydimethylsiloxane ("PDMS"), and / or acryl-based rubber, but the type of rubber is not limited thereto.

[0121] As the number of times the display panel 110 is rolled and unrolled increases, the restoring force of the display panel 110 decreases, whereby the display panel 110 may not be fully unrolled, or may not be flat although it is unrolled. In an exemplary embodiment of the present invention, a layer including rubber, which is a material having good restoring force, is provided on one surface, on both surfaces, and / or in an inner layer of the display panel 110, whereby the restoring force of the display panel 110 may be improved.

[0122] The rubber layers 310 and 320 may function as protective layers for absorbing impact applied to the display panel 110 and preventing the display panel 110 from being damaged. Here, the first rubber layer 310 and / or the second rubber layer 320 may be optically transparent so as to prevent an image displayed on the display panel 110 from being blocked. Unlike the illustrated exemplary embodiment, at least one of the rubber layers 310 and 320 may be omitted. In such an exemplary embodiment, Fig.11A The adhesive layers AD1 and AD2 shown in FIG. 3 may be provided in place of at least one of the rubber layers 310 and 320 .

[0123] The window 115 may be disposed over the first rubber layer 310. The window 115 provides desired surface properties of the display panel 110 while protecting the underlying layers and the display panel 110. The uncured first rubber layer 310 is disposed between the display panel 110 and the window 115, and then cured, whereby the window 115 may be bonded to the first rubber layer 310. In an alternative exemplary embodiment, the window 115 may be bonded to the first rubber layer 310 using a separate adhesive such as PSA. A touch screen panel (not shown) may be placed between the first rubber layer 310 and the window 115. The touch screen panel may be disposed on one surface of the window 115, for example, on a surface in contact with the first rubber layer 310.

[0124] The support member 120 is disposed under the second rubber layer 320. The structure of the support member 120 is as described above. That is, the support member 120 may be provided with a region A disposed along the third direction axis D3.

[0125] In various exemplary embodiments of the present invention, a first elastic gel layer 51 may be placed between the display panel 110 and the second rubber layer 320, and a second elastic gel layer 52 may be placed between the second rubber layer 320 and the support member 120. In an exemplary embodiment, each of the elastic gel layers 51 and 52 may have, for example, about 9000 joules per square meter (J / m 2 ) or less or about 5000 to about 9000 J / m 2 The elastic gel layers 51 and 52 have a higher toughness or fracture energy than a layer including a common gel. To this end, the elastic gel layers 51 and 52 may include a highly stretchable and recoverable material, i.e., a so-called "tough gel". The tough gel may include a hydrogel and / or an organic gel. In an exemplary embodiment, the tough gel may include, for example, a mixed gel including polyacrylamide gel and alginate gel, but the tough gel is not limited thereto.

[0126] The elastic gel layers 51 and 52 may have adhesiveness through surface treatment. Therefore, the support member 120 or the second rubber layer 320 may be bonded to other elements through the elastic gel layers 51 and 52 without using an adhesive such as PSA, OCA, etc. Adhesives such as PSA or OCA have weak restoring force. Therefore, when a layer having an adhesive such as PSA or OCA is included, it may adversely affect the flattening of the display unit DP when the display unit DP is unfolded.

[0127] In the exemplary embodiment of the present invention, there is no need to use an adhesive to bond the support member 120. In addition, because the elastic gel layers 51 and 52 have a high restoring force, even if the display unit DP is repeatedly rolled and unrolled for a long time, the flatness of the display unit DP and its display panel 110 can be maintained. That is, the elastic gel layers 51 and 52 can impart a restoring property for high flatness of the display panel 110 to the display unit DP.

[0128] Fig. 11C It is shown Figure 8 0026] A cross-sectional view of yet another exemplary embodiment of a display unit is shown in FIG.

[0129] Reference Fig. 11C , the display panel 110 includes a substrate 111 , a display layer 200 and a packaging substrate 116 .

[0130] The substrate 111 is a base member for supporting various configurations of the display panel 110 and may include an insulating material. The substrate 111 may include a flexible material to enable the display panel 110 to be rolled or unrolled and may include, for example, a plastic material such as PI, PA, PET, or the like.

[0131] The display layer 200 includes elements and lines forming pixels and layers for insulating or protecting the elements and lines. The display layer 200 may include switching elements (such as transistors) and light-emitting elements (such as OLEDs). Fig.18 The detailed structure of the display layer 200 is described in detail.

[0132] The encapsulation substrate 116 may be disposed below the display layer 200. The encapsulation substrate 116 protects the elements and lines forming the pixels and the layers for insulating or protecting the elements and lines. In an exemplary embodiment, the encapsulation substrate 116 may include a metal material that is highly corrosion-resistant and easily manufactured in the form of a foil or a thin film, such as aluminum (Al), nickel (Ni), chromium (Cr), and an alloy of iron (Fe) and nickel (Ni). When the encapsulation substrate 116 includes a metal material, it may be implemented in the form of an ultra-thin film and may provide protection against external impacts and scratches.

[0133] The first adhesive layer AD1 may be disposed between the display layer 200 and the encapsulation substrate 116. The first adhesive layer AD1 may bond the display layer 200 and the encapsulation substrate 116. The first adhesive layer AD1 includes an adhesive material and may be a thermosetting adhesive or a self-curing adhesive. In an exemplary embodiment, the first adhesive layer AD1 may include, for example, OCA, PSA, etc., but the first adhesive layer AD1 is not limited thereto.

[0134] The support member 120 is disposed under the encapsulation substrate 116. The support member 120 may be disposed in contact with the encapsulation substrate 116 of the display panel 110. The structure of the support member 120 is as described above. That is, the support member 120 may be provided with an area A disposed along the third direction axis D3. In various exemplary embodiments, the support member 120 may be bonded to the display panel 110 by the second adhesive layer AD2.

[0135] In such an exemplary embodiment, the second adhesive layer AD2 is disposed between the package substrate 116 and the support member 120. The second adhesive layer AD2 may bond the package substrate 116 and the support member 120. The second adhesive layer AD2 includes an adhesive material and may be a thermosetting adhesive or a self-curing adhesive. In an exemplary embodiment, the second adhesive layer AD2 may include, for example, OCA, PSA, etc., but the second adhesive layer AD2 is not limited thereto.

[0136] In another exemplary embodiment of the present invention, the support member 120 may be coupled to the display panel 110 using a physical coupling method, and may be detachable from the display panel 110. In such an exemplary embodiment, the second adhesive layer AD2 may be omitted.

[0137] Fig.12is a cross-sectional side view of yet another exemplary embodiment of a display device according to the present invention. FIG. 13A to FIG. 13C It is shown Fig.12 A front view of an exemplary embodiment of a magnetic portion is shown in FIG. Fig.14 It is shown Fig.12 A front view of another exemplary embodiment of a magnetic portion is shown in FIG. In addition to at least one region of the guide member GP having magnetic properties, Fig.12 The display device 1"' and Figure 8 The display device 1" is the same as that of the display device 1, and thus repeated description will be omitted.

[0138] Reference Fig.12 , the guide member GP may include a magnetic portion 210 having a magnetic property in at least one region thereof. In an exemplary embodiment, the magnetic portion 210 includes an electromagnet, a coil, etc., and may be configured to adjust the strength of the magnetic force by adjusting the amount of current supplied thereto.

[0139] In an exemplary embodiment, when the display unit DP is rolled or unrolled along the guide member GP, no current is supplied to the magnetic portion 210, whereby, for example, the strength of the magnetic force of the magnetic portion 210 may become zero. That is, when the display unit DP moves upward or downward, the magnetic portion 210 may be controlled to maintain a closed state.

[0140] In addition, for example, when the display unit DP is fixed without being rolled and unrolled, the magnetic part 210 may have a constant magnetic force by being supplied with current. That is, when the display unit DP does not move, the magnetic part 210 may be controlled to maintain an on state.

[0141] The support member 120 including a metal material may be coupled to the magnetic part 210 by the magnetic force of the magnetic part 210. By coupling the support member 120 and the magnetic part 210, the display panel 110 coupled to the support member 120 may be firmly supported and maintained in a flat shape. Specifically, when the display unit DP is fully unfolded or fully rolled up, a partial area visible from the outside through the window HPW of the housing HP is maintained in a flat state by coupling the support member 120 and the magnetic part 210, thereby improving visibility.

[0142] The magnetic portion 210 may be disposed over the entire region of the support member 120. In an alternative exemplary embodiment, the magnetic portion 210 may be provided by patterning in at least one region of the guide member GP. Fig.13A As shown in, for example, in which the guide member GP is set as Figure 3 In the exemplary embodiment of a single extending portion GP1 shown in FIG. 2 , the magnetic portion 210 may be disposed in the guide member GP along an edge of the guide member GP to correspond to the edge of the extending portion GP1 .

[0143] In an alternative exemplary embodiment, when the guide member GP is as Figure 4 When two extensions GP1 and GP2 are provided as shown in FIG, the magnetic portion 210 may be provided with magnetic portions 210-1 and 210-2 in the guide member GP to correspond to the respective extensions GP1 and GP2. In an alternative exemplary embodiment, when the guide member GP is as shown in FIG. Figure 5 When four extending portions GP1 to GP4 are provided as shown in FIG. 1 , the magnetic portion 210 may be provided with magnetic portions 210 - 1 to 210 - 4 in the guide member GP to correspond to the respective extending portions GP1 to GP4 .

[0144] In an alternative exemplary embodiment, Fig.14 As shown in FIG. , when the support member 120 has Fig.10 When the multi-joint structure is shown in , the magnetic portion 210 may include magnetic portions 210 - 1 , 210 - 2 , 210 - 3 , 201 - 4 , . . . , 210 - n (n is a natural number greater than 4) patterned to correspond to region A of the support member 120 .

[0145] The pattern of the magnetic portion 210 is not limited to FIG. 13A to FIG. 13C as well as Fig.14 That is, as long as the magnetic part 210 can support the flat shape of the display unit DP by being coupled to the support member 120, the magnetic part 210 may be variously patterned according to the shapes and sizes of the support member 120 and the guide member GP.

[0146] When the magnetic portion 210 is patterned, each pattern of the magnetic portion 210 can be provided with current individually. Therefore, each pattern of the magnetic portion 210 can be controlled to have different magnetic strengths. In an exemplary embodiment, for example, when the magnetic portion 210 is controlled to be in an on state, control can be performed so that, among the patterns of the magnetic portion 210, the magnetic force of the pattern disposed at the bottom and the pattern disposed at the top is stronger than the magnetic force of the remaining patterns. However, the technical spirit of the present invention is not limited to this example, and any of various methods can be used to control the strength of the magnetic force of the pattern of the magnetic portion 210.

[0147] Fig.15A and Fig. 15B is a view showing an exemplary embodiment of a display screen of a display device according to the present invention.

[0148] In various exemplary embodiments of the present invention, when the display unit DP is unfolded, the display device 1 may display different images in a first area DP1 and a second area DP2, wherein the first area DP1 is disposed outside the housing HP, and the second area DP2 is disposed inside the housing HP and corresponds to the window HPW of the housing HP. In addition, when the display unit DP is rolled up, the display device 1 may display an image of a user in a third area DP3, wherein the third area DP3 is disposed inside the housing HP and corresponds to the window HPW of the housing HP. Here, the third area DP3 may correspond to at least a portion of the first area DP1.

[0149] In an exemplary embodiment, when the display unit DP is unfolded, as shown in FIG. Fig.15A As shown in , the display device 1 can display a content image selected by a user in a first area DP1 disposed outside the housing HP. Here, the display device 1 can display information related to the displayed content and / or information related to services provided for the convenience of the user in a second area DP2, wherein the second area DP2 is disposed inside the housing HP but is visible from the outside through a window HPW of the housing HP.

[0150] The image displayed in the second area DP2 may be, for example, information about the content being displayed, which may include a channel, a title, a playback time, etc. In an alternative exemplary embodiment, the image displayed in the second area DP2 may include, for example, a graphical user interface ("GUI") for content search, user customization of content, preferences, shopping, entertainment, settings of a display device, etc. as a service provided for user convenience. However, the image displayed in the second area DP2 is not limited to these examples.

[0151] In an exemplary embodiment, when the display unit DP is Fig. 15B When rolled up as shown in FIG. 1 , the display device 1 may display information provided for user convenience, etc. in the third area DP3 provided inside the housing HP. The image displayed in the third area DP3 may include, for example, location information, date information, time information, weather information, information about playing content (music, radio broadcast, etc.), etc. However, the image displayed in the third area DP3 is not limited to the above examples.

[0152] In various exemplary embodiments, the third area DP3 may display an image in the AoD mode. Therefore, as long as power is supplied to the display device 1, the image displayed in the third area DP3 is always visible to the user through the window HPW.

[0153] Fig.16A and Fig. 16B is a front view of a display device according to still another exemplary embodiment of the present invention. Fig.17is a front view of a display device according to still another exemplary embodiment of the present invention.

[0154] Reference Fig.16A and Fig. 16B According to another exemplary embodiment of the present invention, the display device 2 may further include a speaker SP integrated into the display unit DP. In the exemplary embodiment, the speaker SP may be provided as a separate layer. Figure 8 In such an exemplary embodiment, a vibration transfer member, an adhesive member, a fixing member, etc. may be further provided between the display panel 110 and the speaker SP. However, the arrangement of the speaker SP is not limited to the above example.

[0155] When the display unit DP is unfolded, at least one area thereof may be disposed outside the housing HP. Here, the speaker SP integrated into the display unit DP is also disposed outside the housing HP to output sound to the outside.

[0156] When the display unit DP is fully rolled, the speaker SP may be disposed at an upper portion of the display unit DP so that sound is transmitted to the outside through an opening HPO (see FIG. 1 ) of the housing HP and / or by vibration of the housing HP. Fig.16A and Fig. 16B An example is shown in which built-in speakers SP are provided at opposite sides of the upper portion of the display unit DP, but the number and arrangement of the speakers SP are not limited to the shown example.

[0157] When the display unit DP is fully rolled and its entire area is disposed inside the housing HP, the sound output by the speaker SP disposed at the upper portion of the display unit DP can be propagated to the outside through the opening HPO of the housing HP or vibration. In such an exemplary embodiment, the display device 2 can function as a sound box.

[0158] In an exemplary embodiment of the present invention, Fig.17 As shown in , the display device 2' may further include a speaker HPS disposed in the housing HP. The speaker HPS disposed in the housing HP may be controlled to operate together with or independently of the speaker SP integrated into the display unit DP. In an exemplary embodiment, for example, when the display unit DP is unfolded and disposed outside the housing HP, the sound of the video may be output via the speaker SP integrated into the display unit DP, but when the display unit DP is rolled up and disposed inside the housing HP, the sound may be output via the speaker HPS disposed in the housing HP. However, the technical spirit of the present invention is not limited to this example.

[0159] In another exemplary embodiment, the display device 2 has only the speaker HPS provided in the housing HP, and a built-in speaker may not be provided in the display unit DP.

[0160] Fig.18 is a cross-sectional view showing an exemplary embodiment of a stacked structure of a display unit according to the present invention. Specifically, Fig.18 Shows FIG. 11A to FIG. 11C Detailed structures of the substrate 111 and the display layer 200 stacked on the substrate 111 are shown in FIG.

[0161] Reference Fig.18 , pixels (not shown) are provided on the display layer 200. Each of the pixels includes a transistor and an OLED. Fig.18 , the stack structure of the display layer 200 is described based on a single transistor TR and a single OLED coupled thereto.

[0162] In and / or on the substrate 111, a buffer layer (not shown) or a barrier layer (not shown) for preventing diffusion of impurities that deteriorate the characteristics of the semiconductor and preventing penetration of moisture, etc. may be provided. In an exemplary embodiment, such a buffer layer may be provided as silicon oxide (SiO x ) and silicon nitride (SiN x ) of a single layer or multiple layers, but the buffer layer is not limited thereto.

[0163] The semiconductor 131 of the transistor TR is disposed on the substrate 111, and the gate insulating layer 140 is disposed on the semiconductor 131. The semiconductor 131 includes a source region, a drain region, and a channel region therebetween. In an exemplary embodiment, for example, the semiconductor 131 may include polycrystalline silicon, an oxide semiconductor, or amorphous silicon. In an exemplary embodiment, the gate insulating layer 140 may include an inorganic insulating material such as silicon oxide, silicon nitride, and the like.

[0164] A gate conductor including a gate electrode 124 of the transistor TR is disposed on the gate insulating layer 140. In an exemplary embodiment, the gate conductor may include, for example, a metal such as copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), chromium (Cr), tantalum (Ta), titanium (Ti), etc., or an alloy thereof.

[0165] The interlayer insulating layer 160 is disposed on the gate conductor. The interlayer insulating layer 160 may include an inorganic material.

[0166] A data conductor including a source electrode 173 and a drain electrode 175 of the transistor TR is disposed on the interlayer insulating layer 160. The source electrode 173 and the drain electrode 175 are respectively coupled to a source region and a drain region of the semiconductor 131 through contact holes defined in the interlayer insulating layer 160 and the gate insulating layer 140. In an exemplary embodiment, the data conductor may include, for example, a metal such as copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), chromium (Cr), gold (Au), platinum (Pt), palladium (Pd), tantalum (Ta), tungsten (W), titanium (Ti), nickel (Ni), etc., or an alloy thereof.

[0167] A passivation layer 180 is disposed on the data conductor. The passivation layer 180 may include an organic material. A pixel electrode 191 is disposed on the passivation layer 180. The pixel electrode 191 is coupled to the drain electrode 175 through a contact hole defined in the passivation layer 180, thereby receiving a data signal for controlling the brightness of the OLED.

[0168] The pixel defining layer 360 is disposed on the passivation layer 180 and the portion of the pixel electrode 191. An opening overlapping the pixel electrode 191 is defined in the pixel defining layer 360. In the opening of the pixel defining layer 360, the emission layer 370 is disposed on the pixel electrode 191, and the common electrode 270 is disposed on the emission layer 370. The pixel electrode 191, the emission layer 370, and the common electrode 270 form an OLED. The pixel electrode 191 may be an anode of the OLED, and the common electrode 270 may be a cathode of the OLED. In an exemplary embodiment, the common electrode 270 may include a transparent conductive material such as indium tin oxide ("ITO") and indium zinc oxide ("IZO").

[0169] The encapsulation layer 390 for protecting the OLED is disposed on the common electrode 270. The encapsulation layer 390 may include at least one organic material layer and / or at least one inorganic material layer. In an exemplary embodiment, for example, the encapsulation layer 390 may be disposed in a manner of alternately stacking a plurality of inorganic material layers and a plurality of organic material layers. In an exemplary embodiment, the inorganic material layer may include an inorganic material such as silicon nitride (SiN x ), silicon oxide (SiO x ), aluminum oxide (AlO x ) and the like, and the organic material layer may use, for example, an epoxy-based or acrylic-based polymer, but the inorganic material layer and the organic material layer are not limited thereto.

[0170] In the above description, an example in which the display panel 110 is an organic light emitting display panel has been described, but the display panel 110 may be, for example, a liquid crystal display panel including a liquid crystal layer.

[0171] An exemplary embodiment of a display device according to the present invention may display and provide brief information through a transparent window provided in a housing of the rollable display device.

[0172] An exemplary embodiment of a display device according to the present invention enables the display unit to maintain a flat state without a bulge when the display unit is rolled or unfolded.

[0173] An exemplary embodiment of a display device according to the present invention enables the display unit to be guided along the front surface of the housing when the display unit is rolled or unfolded, thereby preventing the display unit from deviating from a designed position.

[0174] Although the exemplary embodiments of the present invention have been described in detail with reference to the accompanying drawings, it will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or basic features of the present invention. Therefore, it should be noted that the above-mentioned embodiments are merely illustrative in all exemplary embodiments and should not be interpreted as limiting the present invention. The scope of the present invention is defined by the appended claims rather than the detailed description of the present invention. All changes or modifications made within the meaning and scope of the claims or their equivalents should be interpreted as falling within the scope of the present invention.

Claims

1. Display equipment, including: A display unit, displaying an image; a roller to which an end of the display unit is fixed and which rolls or unrolls the display unit by rotating; a housing accommodating the display unit and the roller; as well as a guide member disposed in the housing and guiding the movement of the display unit, wherein the guide member includes a magnetic portion, the magnetic portion being disposed in a region of the guide member and being capable of magnetically coupling to the display unit; wherein when the display unit moves, the magnetic portion is controlled to be in a closed state, and when the display unit does not move, the magnetic portion is controlled to be in an open state; wherein the guide member includes a first extending portion and a second extending portion, each of the first extending portion and the second extending portion extending in a direction from an upper side of the housing to a lower side of the housing; The guide member further includes a third extending portion and a fourth extending portion, each of which extends from a region of each of opposite side surfaces of the housing to the interior of the housing.

2. The display device according to claim 1, wherein: The guide member comprises: a linear portion extending vertically in a direction from a first side of the housing to a second side of the housing; and A curved portion extends in a direction from the linear portion to the second side to be curved.

3. The display device according to claim 1, wherein: The display unit comprises: A display panel including a display element; and a support member, attached to a surface of the display panel and comprising a metal material, Wherein, the magnetic portion is capable of being magnetically coupled to the support member.

4. The display device according to claim 1, wherein: The magnetic portion is disposed along an edge of the guide member.

5. The display device according to claim 3, wherein: The support member has a multi-jointed structure including rotatably coupled areas, wherein the magnetic portion is patterned in the guide member corresponding to a shape of the rotatably coupled region.

6. The display device according to claim 1, wherein: The housing includes a window, the window includes a transparent material and is disposed on a surface of the housing, When the display unit is unfolded, the display unit displays different images in a first area disposed outside the housing and in a second area disposed inside the housing adjacent to the window. When the display unit is rolled up, the display unit displays at least one piece of information in a third area disposed inside the housing adjacent to the window.

7. The display device according to claim 6, wherein: The third area is driven in the always-on display mode.

8. The display device according to claim 1, wherein: The guide member is fixed within the housing to be adjacent to and face a front surface of the housing, and the guide member overlaps the roller portion when viewed from the front surface.

9. The display device according to claim 8, wherein: the display unit is movable in a vertically upward direction and a vertically downward direction in a state where the display unit is in close proximity to the front surface of the housing, and The display unit remains flat when it is extended in the vertically upward direction to be exposed to the outside of the housing in the unfolded state, and the display unit does not contact the guide member at the outside of the housing.

10. Display equipment, including: A display unit, displaying an image; a roller to which an end of the display unit is fixed and which rolls or unrolls the display unit by rotating; a housing accommodating the display unit and the roller, the housing including a window including a transparent material on a surface of the housing; as well as a guide member disposed inside the housing and guiding movement of the display unit, wherein the guide member includes a magnetic portion, the magnetic portion being disposed in a region of the guide member and being capable of magnetically coupling to the display unit; wherein when the display unit moves, the magnetic portion is controlled to be in a closed state, and when the display unit does not move, the magnetic portion is controlled to be in an open state; wherein the guide member includes a first extending portion and a second extending portion, each of the first extending portion and the second extending portion extending in a direction from an upper side of the housing to a lower side of the housing; The guide member further includes a third extending portion and a fourth extending portion, each of which extends from a region of each of opposite side surfaces of the housing to the interior of the housing.

Images