Display Devices

Abstract

The present application relates to a display device. The display device comprises: a display module; a first supporting film arranged under the display module; a second supporting film arranged under the first supporting film; a plurality of first supporting bars arranged on a lower surface of the first supporting film between the first supporting film and the second supporting film; and a plurality of second supporting bars arranged on an upper surface of the second supporting film between the first supporting film and the second supporting film, wherein the plurality of first supporting bars and the plurality of second supporting bars are arranged alternately.

Description

Technical Field

[0001] The present invention relates to a display device. Background Art

[0002] Electronic devices such as smart phones, digital cameras, notebook computers, navigation systems, and smart TVs that provide images to users include display devices for displaying images. The display device generates images and provides the generated images to users through a display screen.

[0003] With the recent development of display device technology, various types of display devices are being developed. For example, flexible display devices that can be folded or rolled are being developed. Flexible display devices whose shapes can be variously deformed are easy to carry and can improve user convenience.

[0004] A flexible display device includes a flexible display module, and the flexible display module can be rolled up on a roll or unrolled from a roll. However, when the flexible display module is unrolled, the display module may not remain flat. Therefore, a technology for improving the flatness of an unrolled display module is needed. Summary of the invention

[0005] Technical issues

[0006] The present disclosure provides a display device for improving flatness of a display module.

[0007] Technical Solution

[0008] A display device according to an embodiment of the present invention includes: a display module; a first supporting film, arranged under the display module; a second supporting film, arranged under the first supporting film; a plurality of first supporting strips, arranged on the lower surface of the first supporting film between the first supporting film and the second supporting film; and a plurality of second supporting strips, arranged on the upper surface of the second supporting film between the first supporting film and the second supporting film, wherein the plurality of first supporting strips and the plurality of second supporting strips are alternately arranged.

[0009] A display device according to an embodiment of the present invention includes: a roller; a display module including a first area wound around the roller and a second area spaced apart from the roller; a first supporting film arranged under the display module; a plurality of first supporting bars arranged on a lower surface of the first supporting film; a second supporting film arranged under the first supporting film; and a plurality of second supporting bars arranged on an upper surface of the second supporting film, wherein the plurality of first supporting bars and the plurality of second supporting bars are spaced apart from each other around the first area, and as the plurality of first supporting bars and the plurality of second supporting bars approach the second area, the plurality of first supporting bars and the plurality of second supporting bars become closer to each other, and the plurality of first supporting bars and the plurality of second supporting bars are adjacent to each other under the second area so as to be alternately arranged on the same layer.

[0010] Beneficial Effects

[0011] According to an embodiment of the present invention, since the first supporting bars disposed on the lower surface of the first supporting film and the second supporting bars disposed on the upper surface of the second supporting film are alternately disposed adjacent to each other, the display module can be more evenly supported by the first and second supporting bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a perspective view of a display device according to an embodiment of the present invention.

[0013] Figure 2 is shown to be accommodated in Figure 1 0026] A view of a display module in a housing is shown in FIG.

[0014] Figure 3 It is shown Figure 2 A view showing a rolled-up state of the display module is shown in FIG.

[0015] Figure 4 and Figure 5 is shown to be exposed to Figure 1 A view of the display module outside the housing is shown in FIG.

[0016] Figure 6 is from Figure 1 A bottom view of the display device observed from the lower surface of the display module shown in FIG.

[0017] Figure 7 is from Figure 4 A bottom view of the display device observed from the lower surface of the display module shown in FIG.

[0018] Figure 8 is from Figure 5 A bottom view of the display device observed from the lower surface of the display module shown in FIG.

[0019] Fig. 9 It is shown exemplarily Figure 2 FIG. 4 is a diagram of a cross section of a display module shown in FIG.

[0020] Fig.10 It is shown exemplarily Fig. 9 FIG. 4 is a diagram of a cross section of a display panel shown in FIG.

[0021] Fig.11 yes Fig. 9 A plan view of the display panel shown in FIG.

[0022] Fig.12 It is shown exemplarily Fig.11 is a diagram of the equivalent circuit of any one pixel shown in .

[0023] Fig.13is exemplarily shown with Fig.12 1 is a cross-sectional view of a portion corresponding to the light emitting element shown in FIG.

[0024] Fig.14 yes Figure 1 An exploded perspective view of the housing shown in FIG. Fig.15 It is shown Fig.14 A view of the inner surface of any one of the side wall portions shown in .

[0025] Fig.16 yes Figure 4 A perspective view of the display module and the support portion shown in FIG.

[0026] Fig.17 It is shown Fig.16 A view of the lower surface of a portion of a display module is shown in FIG.

[0027] Fig.18 yes Fig.16 A perspective view of any one of the first support bars and any one of the second support bars shown in FIG.

[0028] Fig.19 and Fig. 20 It shows that Fig.16 A view of a structure in which the first protruding portion and the second protruding portion are provided on the side wall portion as shown in FIG.

[0029] Fig.21 It shows that Fig.16 FIG. 4 is a view of a structure in which a display module and a support portion are arranged in a housing.

[0030] Fig. 22 Is shown in the settings not in Fig.21 A view of the first supporting portion and the second supporting portion in the second guide groove and the third guide groove shown in FIG.

[0031] Fig.23 It shows that Fig.21 A view of a structure in which the first protruding portion and the second protruding portion are arranged in the first guide groove, the second guide groove and the third guide groove.

[0032] Fig.24 and Fig.25 : is a view showing the configuration of a support portion according to an embodiment of the present invention.

[0033] Fig.26 : is a view showing the configuration of a support portion according to an embodiment of the present invention.

[0034] Fig. 27 It is shown that there are Fig.26A view of the first, second and third guide grooves of the first and second protruding parts shown in FIG. DETAILED DESCRIPTION

[0035] In this specification, when an element (or region, layer, part, etc.) is referred to as being "on", "connected to" or "coupled to" another element, it means that it can be directly placed on / directly connected to / directly coupled to another component, or a third component can be arranged between them.

[0036] The same reference numerals denote the same elements. In addition, in the drawings, the thickness, proportion, and size of components are exaggerated for efficient description.

[0037] “And / or” includes all of one or more combinations defined by the relevant components.

[0038] It should be understood that the terms "first" and "second" are used herein to describe various components, but these components should not be limited by these terms. The above terms are only used to distinguish one component from another component. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and vice versa. Unless otherwise specified, a term in the singular may include a plural form.

[0039] In addition, terms such as "below", "lower side", "upper", and "upper side" are used to describe the relationship of the configurations shown in the drawings. The terms are described as relative concepts based on the directions shown in the drawings.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and terms are clearly defined herein unless interpreted in an idealized or overly formal sense.

[0041] In various embodiments of the inventive concept, the terms “include,” “comprise,” “including,” or “comprising” specify properties, regions, fixed numbers, steps, processes, elements, and / or components, but do not exclude other properties, regions, fixed numbers, steps, processes, elements, and / or components.

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0043] Figure 1 is a perspective view of a display device according to an embodiment of the inventive concept. Figure 2 is shown to be accommodated in Figure 1 0026] A view of a display module in a housing is shown in FIG. Figure 3 It is shown Figure 2 A view showing a rolled-up state of the display module is shown in FIG.

[0044] refer to Figure 1 and Figure 2 , the display device DD may include a case CS, a display module DM, a first coupling portion CP1, and a second coupling portion CP2. An opening portion OP opened in a first direction DR1 may be defined in the case CS. The case CS may extend longer in a second direction DR2 crossing the first direction DR1 than in the first direction DR1.

[0045] Hereinafter, a direction intersecting a plane defined by the first direction DR1 and the second direction DR2 is defined as a third direction DR3. The case CS may extend longer in the third direction DR3 than in the first direction DR1. The case CS may extend longer in the second direction DR2 than in the third direction DR3.

[0046] The first coupling portion CP1 may be disposed on the housing CS adjacent to the opening portion OP. The first coupling portion CP1 may be movable toward or away from the housing CS in the first direction DR1. The second coupling portion CP2 may be adjacent to the opening portion OP and may be connected to the first coupling portion CP1. The second coupling portion CP2 may move together with the first coupling portion CP1 to move away from or toward the housing CS in the first direction DR1.

[0047] The display module DM may be accommodated in the housing CS. The display module DM may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2. However, the present invention is not limited thereto, and the display module DM may have various shapes, such as a circular shape or a polygonal shape.

[0048] An upper surface of the display module DM may be defined as a display surface DS, and may have a plane defined by a first direction DR1 and a second direction DR2. An image IM generated by the display module DM may be provided to a user through the display surface DS.

[0049] The display surface DS may include a display area DA and a non-display area NDA surrounding the display area DA. The display area DA may display an image IM, and the non-display area NDA may not display the image IM. The non-display area NDA may surround the display area DA and may define an outline portion of the display module DM printed in a predetermined color.

[0050] refer to Figure 3, the display module DM may be a flexible display module. The display module DM may be rolled up like a scroll. The display module DM may be rolled up from one side of the display module DM. The display module DM may be rolled up so that the display surface DS faces outward, but is not limited thereto, and the display module DM may be rolled up so that the display surface DS faces inward.

[0051] refer to Figure 1 , the display device DD can be used in large electronic devices such as TVs, monitors or external billboards. The display device DD can be used in small and medium-sized electronic devices such as personal computers, notebook computers, personal digital terminals, game consoles, smart phones, tablet computers or cameras. The display device DD can be used as a navigation device for cars, airplanes or ships. However, these are presented only as embodiments and can be used in other electronic devices without departing from the concept of the present invention.

[0052] Figure 4 and Figure 5 is shown to be exposed to Figure 1 A view of the display module outside the housing is shown in FIG.

[0053] refer to Figure 4 and Figure 5 , the display device DD may include a support portion SUP for supporting the display module DM. The display surface DS may be defined as an upper surface US of the display module DM, and a surface of the display module DM opposite to the display surface DS may be defined as a lower surface LS of the display module DM. In the following, based on the third direction DR3, the left surface of a specific configuration is represented as an upper surface, and the right surface of a specific configuration is represented as a lower surface.

[0054] The support portion SUP may be disposed on the lower surface LS of the display module DM to support the display module DM. The support portion SUP and the display module DM may be connected to the first coupling portion CP1. The support portion SUP and the display module DM may move in the first direction DR1 together with the first coupling portion CP1. The support portion SUP and the display module DM may be pulled out of the housing CS through the opening portion OP, or may be introduced into the housing CS. The area of ​​the exposed surface of the display module DM may be adjusted in various ways.

[0055] The second coupling portion CP2 may be connected to a lower surface of the first coupling portion CP1. The second coupling portion CP2 may be connected to a moving portion for extending the display module DM to the outside of the case CS, and this configuration will be described in detail below.

[0056] Figure 6 is from Figure 1 A bottom view of the display device observed from the lower surface of the display module shown in FIG. Figure 7 is from Figure 4 A bottom view of the display device observed from the lower surface of the display module shown in FIG. Figure 8 is from Figure 5 A bottom view of the display device observed from the lower surface of the display module shown in FIG.

[0057] refer to Figure 6 , Figure 7 and Figure 8 The display device DD may include a display module DM and a plurality of moving parts MOV1 and MOV2 for extending the display module DM and the support part SUP to the outside of the case CS. The moving parts MOV1 and MOV2 are coupled in the case CS and may expand or contract in a first direction DR1.

[0058] The moving parts MOV1 and MOV2 may include a plurality of first moving parts MOV1 coupled in the case CS and a second moving part MOV2 coupled in the case CS. The first moving parts MOV1 may be spaced apart from each other in the second direction DR2, and the second moving parts MOV2 may be disposed between the first moving parts MOV1.

[0059] The first moving part MOV1 and the second moving part MOV2 may be disposed on the lower surface of the first coupling part CP1. One end of the first moving part MOV1 may be connected to the first coupling part CP1. The first moving part MOV1 may have an antenna-like structure. Therefore, the first moving part MOV1 may expand or contract in the first direction DR1.

[0060] One end of the second moving part MOV2 may be connected to the second coupling part CP2. The second moving part MOV2 has a foldable bellows structure and may expand or contract in the first direction DR1. For example, the second moving part MOV2 may include a plurality of first extension parts EX1 and a plurality of second extension parts EX2.

[0061] A pair of first extension parts EX1 and second extension parts EX2 may be arranged to cross each other at the center part of the first extension part EX1 and the center part of the second extension part EX2. For example, a pair of first extension parts EX1 and second extension parts EX2 may be arranged in an "X" shape. At the intersection of the first extension part EX1 and the second extension part EX2, the first extension part EX1 and the second extension part EX2 may be coupled to each other for rotation. In addition, one end of the first extension part EX1 and one end of the second extension part EX2 adjacent to each other may be coupled to each other for rotation.

[0062] Moving holes MH extending in the second direction DR2 and spaced apart from each other in the second direction DR2 may be defined in the second coupling portion CP2. The ends of the first extension portion EX1 and the second extension portion EX2 disposed at the uppermost end are respectively disposed in the moving holes MH to move toward or away from each other in the second direction DR2.

[0063] When the uppermost end of the first extension portion EX1 and the uppermost end of the second extension portion EX2 move away from each other in the second direction DR2, the second moving portion MOV2 may be lowered in the first direction DR1. When the second moving portion MOV2 is lowered, the first moving portion MOV1 may be lowered in the first direction DR1.

[0064] When the end of the first extension part EX1 and the end of the second extension part EX2 are moved closer to each other in the second direction DR2, the second moving part MOV2 may expand in the first direction DR1. When the second moving part MOV2 expands in the first direction DR1, the first moving part MOV1 may expand in the first direction DR1.

[0065] like Figure 6 As shown in FIG, when the first moving part MOV1 and the second moving part MOV2 are lowered in the first direction DR1, the display module DM and the support part SUP may be accommodated in the case CS. In addition, the first coupling part CP1 and the second coupling part CP2 may be adjacent to the opening part OP.

[0066] like Figure 7 and Figure 8 As shown in FIG, when the first moving part MOV1 and the second moving part MOV2 expand in the first direction DR1, the first coupling part CP1 and the second coupling part CP2 can move in the first direction DR1 to move away from the housing CS according to the expansion of the first moving part MOV1 and the second moving part MOV2. Therefore, the display module DM and the support part SUP connected to the first coupling part CP1 can extend to the outside of the housing CS through the opening part OP.

[0067] Fig. 9 It is shown exemplarily Figure 2 FIG. 4 is a diagram of a cross section of a display module shown in FIG.

[0068] refer to Fig. 9 , the display module DM may include a display panel DP, an input sensing unit ISP, a polarizing film POL, a window WIN, a printing layer PIT, a protection film PFM, a buffer layer CSL, and first to fourth adhesives ADH1 to ADH4.

[0069] The display panel DP may include a display area DA and a non-display area NDA surrounding the display area DA. The display panel DP may be a flexible display panel. For example, the display panel DP may include a plurality of electronic components disposed on a flexible substrate.

[0070] The display panel DP according to an embodiment of the present invention may be a light-emitting display panel, and is not particularly limited. For example, the display panel DP may be an organic light-emitting display panel or a quantum dot light-emitting display panel. In an organic light-emitting display panel, the light-emitting layer may include an organic light-emitting material. The light-emitting layer of the quantum dot light-emitting display panel may include quantum dots, quantum rods, etc. In the following, the display panel DP is described as an organic light-emitting display panel.

[0071] The input detection unit ISP may be provided on the display panel DP. The input detection unit ISP may include a plurality of sensor units (not shown) for detecting external input. The sensor unit may sense the external input in a capacitive manner. When the display panel DP is manufactured, the input detection unit ISP may be directly manufactured on the display panel DP. However, the present invention is not limited thereto, and the input detection unit ISP may be manufactured as a panel separated from the display panel DP and then attached to the display panel DP by an adhesive.

[0072] The polarizing film POL may be disposed on the input detection unit ISP. The polarizing film POL may be defined as an external light anti-reflection film. The polarizing film POL may reduce the reflectivity of external light incident from above the display module DM toward the display panel DP. For example, the polarizing film POL may include a phase retarder and / or a polarizer.

[0073] The window WIN may be disposed on the polarizing film POL. The window WIN may protect the display panel DP, the input detection unit ISP, and the polarizing film POL from external scratches and impacts. An image generated by the display panel DP may be provided to a user through the window WIN.

[0074] The protective film PFM may be disposed under the display panel DP. The protective film PFM may be defined as a protective substrate. The protective film PFM may protect the lower portion of the display panel DP. The protective film PFM may include a flexible plastic material. For example, the protective film PFM may include polyethylene terephthalate (PET).

[0075] The buffer layer CSL may be disposed under the protection film PFM. The buffer layer CSL may absorb an external impact applied to a lower portion of the display module DM to protect the display panel DP. The buffer layer CSL may include a foam sheet having a predetermined elastic force.

[0076] The printed layer PIT may overlap the non-display area NDA and may be disposed on the lower surface of the window WIN facing the polarizing film POL. The printed layer PIT may not be disposed in the display area DA. The printed layer PIT may have a predetermined color, for example, may have black. The non-display area NDA may be printed in a predetermined color by the printed layer PIT.

[0077] The first adhesive ADH1 may be disposed between the window WIN and the polarizing film POL. The window WIN and the polarizing film POL may be bonded to each other by the first adhesive ADH1. The second adhesive ADH2 may be disposed between the polarizing film POL and the input detection unit ISP. The polarizing film POL and the input detection unit ISP may be bonded to each other by the second adhesive ADH2.

[0078] The third adhesive ADH3 may be disposed between the display panel DP and the protection film PFM. The display panel DP and the protection film PFM may be bonded to each other by the third adhesive ADH3. The fourth adhesive ADH4 may be disposed between the protection film PFM and the buffer layer CSL. The protection film PFM and the buffer layer CSL may be bonded to each other by the fourth adhesive ADH4.

[0079] The first adhesive ADH1 may include an optically transparent adhesive. Each of the second adhesive ADH2, the third adhesive ADH3, and the fourth adhesive ADH4 may include a pressure-sensitive adhesive. Based on the third direction DR3, the thickness of the first adhesive ADH1 may be greater than the thickness of each of the second adhesive ADH2, the third adhesive ADH3, and the fourth adhesive ADH4.

[0080] Fig.10 For example, Fig. 9 FIG. 4 is a diagram of a cross section of a display panel shown in FIG.

[0081] refer to Fig.10 , the display panel DP may include a substrate SUB, a pixel layer PXL disposed on the substrate SUB, and a thin film sealing layer TFE disposed on the substrate SUB to cover the pixel layer PXL.

[0082] The substrate SUB may include a display area DA and a non-display area NDA surrounding the display area DA. The substrate SUB may include a flexible plastic material. For example, the substrate SUB may include polyimide (PI). The pixel layer PXL may include a plurality of pixels. The configuration of the pixel will be described in detail below.

[0083] The thin film sealing layer TFE may include at least two inorganic layers and an organic layer disposed between the inorganic layers. The inorganic layer may include an inorganic material and may protect the pixel layer PXL from moisture / oxygen. The organic layer may include an organic material and may protect the pixel layer PXL from impurities such as dust particles. The input detection unit ISP may be disposed on the thin film sealing layer TFE.

[0084] Fig.11 yes Fig. 9 A plan view of the display panel is shown in FIG.

[0085] refer to Fig.11 , the display module DM according to the embodiment of the present invention may include a display panel DP, a scan driver SDV, a data driver DDV, and an emission driver EDV. The scan driver SDV, the data driver DDV, and the emission driver EDV may be disposed on the display panel DP.

[0086] The display panel DP may have a rectangular shape having long sides in the first direction DR1 and short sides in the second direction DR2. The display panel DP may include a display area DA and a non-display area NDA surrounding the display area DA.

[0087] The display panel DP may include a plurality of pixels PX, a plurality of scan lines SL1 to SLm, a plurality of data lines DL1 to DLn, and a plurality of emission lines EL1 to ELm. m and n are natural numbers greater than 1. The pixels PX may be arranged in a matrix form, but are not limited thereto, and the pixels PX may be arranged in various forms. The pixels PX are disposed in the display area DA and may be connected to the scan lines SL1 to SLm, the data lines DL1 to DLn, and the emission lines EL1 to ELm.

[0088] The scan driver SDV, the data driver DDV, and the emission driver EDV may be disposed in the non-display area NDA. The scan driver SDV and the emission driver EDV may be disposed adjacent to the long sides of the display panel DP, respectively. The data driver DDV may be manufactured in the form of an integrated circuit chip and disposed adjacent to any one of the short sides of the display panel DP.

[0089] The scan lines SL1 to SLm may extend in the second direction DR2 and may be connected to the scan driver SDV. The data lines DL1 to DLn may extend in the first direction DR1 to be connected to the data driver DDV. The emission lines EL1 to ELm may extend in the second direction DR2 to be connected to the emission driver EDV.

[0090] The scan driver SDV may generate a plurality of scan signals, and the scan signals may be applied to the pixels PX through the scan lines SL1 to SLm. The scan signals may be sequentially applied to the pixels PX. The data driver DDV may generate a plurality of data voltages, and the data voltages may be applied to the pixels PX through the data lines DL1 to DLn. The emission driver EDV may generate a plurality of emission signals, and the emission signals may be applied to the pixels PX through the emission lines EL1 to ELm.

[0091] Although not shown in the drawings, the display device DD may include a timing controller (not shown) for controlling operations of the scan driver SDV, the data driver DDV, and the emission driver EDV.

[0092] The pixel PX may be supplied with a data voltage in response to the scan signal. The pixel PX may display an image by emitting light having brightness corresponding to the data voltage in response to the emission signal. The emission time of the pixel PX may be controlled by the emission signal.

[0093] Fig.12 It is shown as an example Fig.11 is a diagram of the equivalent circuit of any one pixel shown in .

[0094] refer to Fig.12 , the pixel PX may include a light emitting element OLED and a pixel circuit CC. The pixel circuit CC may include a plurality of transistors T1 to T7 and a capacitor CP. The pixel circuit CC may control the amount of current flowing through the light emitting element OLED in response to the data voltage. The light emitting element OLED may emit light having a predetermined brightness corresponding to the amount of current provided from the pixel circuit CC.

[0095] Each of the transistors T1 to T7 may include an input electrode (or source electrode), an output electrode (or drain electrode), and a control electrode (or gate electrode). In this specification, for convenience, one of the input electrode and the output electrode may be referred to as a first electrode, and the other may be referred to as a second electrode.

[0096] The first electrode of the first transistor T1 may be applied with the first voltage ELVDD through the fifth transistor T5, and the second electrode may be connected to the anode electrode of the light emitting element OLED through the sixth transistor T6. The first transistor T1 may be defined as a driving transistor. The first transistor T1 may control the amount of current flowing through the light emitting element OLED according to the voltage applied to the control electrode of the first transistor T1.

[0097] The cathode of the light emitting element OLED may receive the second voltage ELVSS having a level lower than the first voltage ELVDD.

[0098] The second transistor T2 may be connected between the data line DL and the first electrode of the first transistor T1, and the control electrode of the second transistor T2 may be connected to the i-th scan line SLi. The second transistor T2 may be turned on by receiving the i-th scan signal Si via the i-th scan line SLi to electrically connect the data line DL and the first electrode of the first transistor T1.

[0099] The third transistor T3 may be connected between the second electrode and the control electrode of the first transistor T1. The control electrode of the third transistor T3 may be connected to the i-th scan line SLi. The third transistor T3 is turned on by receiving the i-th scan signal Si via the i-th scan line SLi to electrically connect the second electrode and the control electrode of the first transistor T1. When the third transistor T3 is turned on, the first transistor T1 may be connected in a diode form.

[0100] The fourth transistor T4 may be connected between the node ND and the initialization power generation unit (not shown). The control electrode of the fourth transistor T4 may be connected to the (i-1)th scan line SLi-1. The fourth transistor T4 may be turned on by receiving the (i-1)th scan signal Si-1 via the (i-1)th scan line SLi-1 to provide the initialization voltage Vint to the node ND.

[0101] The fifth transistor T5 may be connected between the power line PL and the first electrode of the first transistor T1. A control electrode of the fifth transistor T5 may be connected to the i-th emission line ELi.

[0102] The sixth transistor T6 may be connected between the second electrode of the first transistor T1 and the anode electrode of the light emitting element OLED. A control electrode of the sixth transistor T6 may be connected to the i-th emission line ELi.

[0103] The seventh transistor T7 may be connected between the initialization power generation unit (not shown) and the anode electrode of the light emitting element OLED. The control electrode of the seventh transistor T7 may be connected to the (i+1)th scan line SLi+1. The seventh transistor T7 may be turned on by receiving the (i+1)th scan signal Si+1 via the (i+1)th scan line SLi+1 to provide the initialization voltage Vint to the anode electrode of the light emitting element OLED.

[0104] The capacitor CP may be provided between the power line PL and the node ND. The capacitor CP may store a data voltage. When the fifth transistor T5 and the sixth transistor T6 are turned on, the amount of current flowing through the first transistor T1 may be determined according to the voltage stored in the capacitor CP.

[0105] although Fig.12The transistors T1 to T7 in FIG. 1 are explained based on PMOS, but the present invention is not limited thereto, and in the embodiment of the present invention, the transistors T1 to T7 may be formed of NMOS.

[0106] Fig.13 is exemplarily shown with Fig.12 1 is a cross-sectional view of a portion corresponding to the light emitting element shown in FIG.

[0107] refer to Fig.13 , the pixel PX may include a light emitting element OLED and a transistor TR connected to the light emitting element OLED. The light emitting element OLED may include a first electrode AE, a second electrode CE, a hole control layer HCL, an electron control layer ECL, and a light emitting layer EML. The first electrode AE ​​may be an anode electrode, and the second electrode CE may be a cathode electrode. The transistor TR may be Fig.12 The sixth transistor T6 is shown in FIG. The light emitting element OLED may be defined as an organic light emitting element.

[0108] The transistor TR and the light emitting element OLED may be disposed on the substrate SUB. The substrate SUB may include an emission region PXA corresponding to each of the pixels PX and a non-emission region NPXA around the emission region PXA. The light emitting element OLED may be disposed in the emission region PXA, and the transistor TR may be disposed in the non-emission region NPXA.

[0109] The buffer layer BFL is disposed on the substrate SUB, and the buffer layer BFL may include an inorganic material. The semiconductor layer SM of the transistor TR may be disposed on the buffer layer BFL. The semiconductor layer SM may include a semiconductor made of an inorganic material such as amorphous silicon or polycrystalline silicon, or may include an organic semiconductor. In addition, the semiconductor layer SM may include an oxide semiconductor. Although not shown in Fig.13 Although not shown in FIG. 1 , the semiconductor layer SM may include a source region, a drain region, and a channel region between the source region and the drain region.

[0110] The first insulating layer INS1 may be disposed on the buffer layer BFL to cover the semiconductor layer SM. The first insulating layer INS1 may include an inorganic material. The gate electrode GE of the transistor TR overlapping the semiconductor layer SM may be disposed on the first insulating layer INS1. The gate electrode GE may be disposed to overlap the channel region of the semiconductor layer SM.

[0111] The second insulating layer INS2 may be disposed on the first insulating layer INS1 to cover the gate electrode GE. The second insulating layer INS2 may include an organic material and / or an inorganic material.

[0112] The source electrode SE and the drain electrode DE of the transistor TR may be disposed on the second insulating layer INS2 to be spaced apart from each other. The source electrode SE may be connected to the source region of the semiconductor layer SM through a first contact hole CH1 defined in the first insulating layer INS1 and the second insulating layer INS2. The drain electrode DE may be connected to the drain region of the semiconductor layer SM through a second contact hole CH2 defined in the first insulating layer INS1 and the second insulating layer INS2.

[0113] The third insulating layer INS3 may be disposed on the second insulating layer INS2 to cover the source electrode SE and the drain electrode DE of the transistor TR. The third insulating layer INS3 may include an organic material. The connection electrode CNE may be disposed on the third insulating layer INS3. The connection electrode CNE may be connected to the drain electrode DE through a third contact hole CH3 defined in the third insulating layer INS3.

[0114] The fourth insulating layer INS4 may be disposed on the third insulating layer INS3 to cover the connection electrode CNE. The first electrode AE ​​may be disposed on the fourth insulating layer INS4. The first electrode AE ​​may be connected to the connection electrode CNE through a fourth contact hole CH4 defined in the fourth insulating layer INS4.

[0115] A pixel defining layer PDL exposing a predetermined portion of the first electrode AE ​​may be disposed on the first electrode AE ​​and the fourth insulating layer INS4. An opening portion PX_OP for exposing the predetermined portion of the first electrode AE ​​may be defined in the pixel defining layer PDL.

[0116] The hole control layer HCL may be disposed on the first electrode AE ​​and the pixel defining layer PDL. The hole control layer HCL may be commonly disposed in the emission area PXA and the non-emission area NPXA. The hole control layer HCL may include a hole transport layer and may further include a hole injection layer.

[0117] The light emitting layer EML may be disposed on the hole control layer HCL. The light emitting layer EML may be disposed in a region corresponding to the opening portion PX_OP. That is, the light emitting layers EML may be formed to be separated from each other in the pixel PX. The light emitting layer EML may include an organic material and / or an inorganic material. The light emitting layer EML may generate any one of red light, green light, and blue light. However, the present invention is not limited thereto, and the light emitting layer EML may generate white light by combining a red organic material, a green organic material, and a blue organic material.

[0118] The electron control layer ECL may be disposed on the light emitting layer EML. The electron control layer ECL may be disposed on the hole control layer HCL to cover the light emitting layer EML. That is, the electron control layer ECL may be commonly disposed in the emission region PXA and the non-emission region NPXA. The electron control layer ECL may include an electron transport layer and may further include an electron injection layer.

[0119] The second electrode CE may be disposed on the electronic control layer ECL. The second electrode CE may be commonly disposed in the pixel PX. The thin film sealing layer TFE may be disposed on the second electrode CE. The layer between the substrate SUB and the thin film sealing layer TFE may be defined as a pixel layer PXL.

[0120] A first voltage ELVDD may be applied to the first electrode AE, and a second voltage ELVSS may be applied to the second electrode CE. Holes and electrons injected into the light emitting layer EML are recombined to form excitons, and when the excitons transition to a ground state, the light emitting element OLED may emit light. The light emitting element OLED may emit light to display an image.

[0121] Fig.14 yes Figure 1 An exploded perspective view of the housing shown in FIG. Fig.15 It is shown Fig.14 A view of the inner surface of any one of the side walls shown in .

[0122] refer to Fig.14 The case CS may include a first case CS1, a second case CS2, and a third case CS3. The first case CS1 may include a bottom portion BP, a side wall portion SWP extending in the first direction DR1 from two sides of the bottom portion BP opposite to each other in the second direction DR2, and a front portion FSP extending in the first direction DR1 from one side of two sides of the bottom portion BP opposite to each other in the third direction DR3.

[0123] The bottom portion BP may have a plane defined by the second direction DR2 and the third direction DR3. The side wall portion SWP may have a plane defined by the first direction DR1 and the third direction DR3. The front portion FSP may have a plane defined by the first direction DR1 and the second direction DR2. The front portion FSP may define a front surface of the case CS.

[0124] The second housing CS2 may have a plane defined by the second direction DR2 and the third direction DR3. The second housing CS2 may be disposed on an upper portion of the first housing CS1 to cover the upper portion of the first housing CS1. An opening portion OP may be defined in the second housing CS2. The opening portion OP may extend in the second direction DR2.

[0125] The third housing CS3 may be disposed at the rear of the first housing CS1 opposite to the front portion FSP of the first housing CS1 to cover the rear of the first housing CS1. The third housing CS3 may have a convex curved surface. The third housing CS3 may define the rear surface of the housing CS. The front surface of the housing CS may correspond to the upper surface US of the display module DM, and the rear surface of the housing CS may correspond to the lower surface LS of the display module DM. The first housing CS1, the second housing CS2, and the third housing CS3 may be coupled to each other to form a housing CS.

[0126] The display device DD may include a roller ROL and a third coupling portion CP3 disposed in the first housing CS1. The roller ROL may have a cylindrical shape extending in the second direction DR2 and may be connected to the sidewall portion SWP. The roller ROL may be adjacent to the bottom portion BP. The third coupling portion CP3 may extend in the second direction DR2.

[0127] The first moving part MOV1 and the second moving part MOV2 may be disposed in the first housing CS1. The first moving parts MOV1 may be respectively connected to inner surfaces ISS of the side wall parts SWP facing each other in the second direction DR2. The third coupling part CP3 may be disposed between the first moving parts MOV1 to be connected to the lower part of the first moving part MOV1. The second moving part MOV2 may be connected to the third coupling part CP3.

[0128] Moving grooves MG extending in the second direction DR2 and spaced apart from each other in the second direction DR2 may be defined in the upper surface of the third coupling portion CP3 in the first direction DR1. The end portion of the first extension portion EX1 disposed at the lowermost end and the end portion of the second extension portion EX2 disposed at the lowermost end may be disposed in the moving grooves MG to move in the second direction DR2, respectively. Although not shown in the drawings, a driving portion for moving the end portion of the first extension portion EX1 disposed at the lowermost end and the end portion of the second extension portion EX2 disposed at the lowermost end in the second direction DR2 may be disposed in the third coupling portion CP3.

[0129] The second moving portion MOV2 may expand in the first direction DR1 when moving in the second direction DR2 so that the end of the first extension portion EX1 disposed at the lowest end and the end of the second extension portion EX2 disposed at the lowest end approach each other. The second moving portion MOV2 may lower in the first direction DR1 when moving in the second direction DR2 so that the end of the first extension portion EX1 disposed at the lowest end and the end of the second extension portion EX2 disposed at the lowest end move away from each other.

[0130] An end portion of the first extension portion EX1 and an end portion of the second extension portion EX2 disposed at the uppermost end may be disposed in the moving hole MH through an insertion hole IH defined in a lower surface of the second coupling portion CP2 in the first direction DR1.

[0131] refer to Fig.14 and Fig.15 The first guide groove GG1, the second guide groove GG2, and the third guide groove GG3 may be respectively defined on the inner surface ISS of the side wall portion SWP. The inner surface ISS of the side wall portion SWP may define inner surfaces facing each other in the second direction DR2 of the case CS. Fig.15 , the portion of the inner surface ISS on which the roller ROL and the first moving part MOV1 are arranged is shown by way of example by dashed lines.

[0132] The first guide groove GG1 may be adjacent to the front portion FSP and may extend in the first direction DR1. When the second case CS2 is coupled to the first case CS1, the first guide groove GG1 may extend toward the opening portion OP.

[0133] The first guide groove GG1 may be disposed between the first moving portion MOV1 and the front portion FSP. A lower end of the first guide groove GG1 may be defined as an end portion of the first guide groove GG1 opposite to the opening portion OP.

[0134] The second guide groove GG2 may extend from one end of the first guide groove GG1. The third guide groove GG3 may extend from one end of the first guide groove GG1. The third guide groove GG3 may be spaced apart from the second guide groove GG2. The second guide groove GG2 and the third guide groove GG3 may extend in the third direction DR3 to pass between the first moving part MOV1 and the roller ROL, and then have a rolled shape.

[0135] The second guide groove GG2 may include a first curved groove CVG1, a first sub-guide groove SGG1, and a second sub-guide groove SGG2. The first curved groove CVG1 may extend from one end of the first guide groove GG1 to have a curved shape. The first curved groove CVG1 may have a curved shape convex toward the housing CS. For example, the first curved groove CVG1 may have a curved shape convex toward an edge between the front portion FSP and the bottom portion BP.

[0136] The first sub guide groove SGG1 may extend from one end of the first curved groove CVG1. The first sub guide groove SGG1 may extend in the third direction DR3 to pass between the first moving part MOV1 and the roller ROL. The second sub guide groove SGG2 may extend from one end of the first sub guide groove SGG1 and have a rolled shape.

[0137] The third guide groove GG3 may include a second curved groove CVG2, a third sub-guide groove SGG3, and a fourth sub-guide groove SGG4. The second curved groove CVG2 may extend from one end of the first guide groove GG1 to have a curved shape. The second curved groove CVG2 may have a curved shape convex toward the housing CS. For example, the second curved groove CVG2 may have a curved shape convex toward the edge between the front portion FSP and the bottom portion BP.

[0138] The third sub guide groove SGG3 may extend from one end of the second curved groove CVG2. The third sub guide groove SGG3 may extend in the third direction DR3 to pass between the first moving part MOV1 and the roller ROL. The third sub guide groove SGG3 may be disposed between the first moving part MOV1 and the first sub guide groove SGG1.

[0139] The length of the third sub guide groove SGG3 in the third direction DR3 may be less than the length of the first sub guide groove SGG1 in the third direction DR3. The fourth sub guide groove SGG4 may extend from one end of the third sub guide groove SGG3 and have a rolled shape.

[0140] The fourth sub-guide groove SGG4 may be spaced apart from the second sub-guide groove SGG2 in the third direction DR3. The fourth sub-guide groove SGG4 may be disposed between the first guide groove GG1 and the second sub-guide groove SGG2.

[0141] Fig.16 yes Figure 4 A perspective view of the display module and the support portion shown in FIG. Fig.17 It is shown Fig.16 A view of the lower surface of a portion of a display module is shown in FIG. Fig.18 yes Fig.16 A perspective view of any one of the first support bars and any one of the second support bars shown in FIG.

[0142] exist Fig.16 In the figure, the display module DM and the support part SUP are exemplarily shown in a flat state.

[0143] refer to Fig.16 , the support portion SUP may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2. The support portion SUP may be disposed below the display module DM. “Below the display module DM” may be a position corresponding to “on the lower surface of the display module DM”.

[0144] refer to Fig.16 and Fig.17A plurality of grooves GOV extending in the second direction DR2 and arranged in the first direction DR1 may be defined on the lower surface of the display module DM. Fig.17 In the embodiment, each of the grooves GOV has a “V” shape when viewed from the second direction DR2, but the shape of the grooves GOV is not limited thereto.

[0145] Slot GOV can be limited to Fig. 9 However, the present invention is not limited thereto, and the groove GOV may be defined in the buffer layer CSL and the protection film PFM. When the groove GOV is defined on the lower surface of the display module DM, the display module DM may be more easily bent.

[0146] refer to Fig.16 , the support portion SUP may include a first support portion SUP1 disposed under the display module DM and a second support portion SUP2 disposed under the first support portion SUP1. The first support portion SUP1 and the second support portion SUP2 may support the display module DM.

[0147] The first supporting portion SUP1 may include a first supporting film SFM1 disposed under the display module DM and a plurality of first supporting bars SB1 disposed under the first supporting film SFM1. The second supporting portion SUP2 may include a second supporting film SFM2 disposed under the display module DM and a plurality of second supporting bars SB2 disposed on the second supporting film SFM2.

[0148] The first supporting film SFM1 and the second supporting film SFM2 may include a flexible plastic material. For example, the first supporting film SFM1 and the second supporting film SFM2 may include polyimide (PI). The first supporting bar SB1 and the second supporting bar SB2 may include a metal. For example, the first supporting bar SB1 and the second supporting bar SB2 may include stainless steel (eg, SUS 404).

[0149] The first supporting bar SB1 may be disposed on the lower surface of the first supporting film SFM1 between the first supporting film SFM1 and the second supporting film SFM2. The upper surface of the first supporting film SFM1 may face the display module DM, and the lower surface of the first supporting film SFM1 may be defined as a surface opposite to the upper surface of the first supporting film SFM1. The first supporting bar SB1 may be attached to the lower surface of the first supporting film SFM1.

[0150] The second supporting bar SB2 may be disposed on an upper surface of the second supporting film SFM2 between the first supporting film SFM1 and the second supporting film SFM2. The upper surface of the second supporting film SFM2 may face a lower surface of the first supporting film SFM1. The second supporting bar SB2 may be attached to an upper surface of the second supporting film SFM2.

[0151] refer to Fig.16 and Fig.18 , the first support bar SB1 may be arranged in the first direction DR1 and extend in the second direction DR2. The second support bar SB2 may be arranged in the first direction DR1 and extend in the second direction DR2. When viewed from the second direction DR2, the first support bar SB1 may have a shape opposite to that of the second support bar SB2.

[0152] When viewed from the second direction DR2, the first supporting bar SB1 may have an inverted trapezoidal shape. When viewed from the second direction DR2, the second supporting bar SB2 may have a trapezoidal shape.

[0153] The first supporting portion SUP1 may further include a plurality of first protruding portions PRT1 that protrude in the second direction DR2 from opposite sides of the first supporting bar SB1 in the second direction DR2. The second supporting portion SUP2 may further include a plurality of second protruding portions PRT2 that protrude in the second direction DR2 from opposite sides of the second supporting bar SB2 in the second direction DR2.

[0154] Fig.19 and Fig. 20 It shows that Fig.16 A view of a structure in which the first protruding portion and the second protruding portion are provided on the side wall portion as shown in FIG.

[0155] For example, Fig.19 and Fig. 20 The first and second supporting bars SB1 and SB2 provided in the first and third sub-guide grooves SGG1 and SGG3 of the second and third guide grooves GG2 and GG3 when viewed from the third direction DR3 are shown.

[0156] refer to Fig.19 , both sides of the first support bar SB1 opposite to each other in the second direction DR2 may be disposed in the second guide groove GG2. For example, the first protrusions PRT1 protruding from both sides of the first support bar SB1 may be disposed in the first sub-guide groove SGG1. The first supporting film SFM1 may not be disposed in the second guide groove GG2, but may be disposed between the side wall portions SWP.

[0157] Exemplarily, the first protrusion PRT1 disposed in the first sub-guide groove SGG1 is shown, but the first protrusion PRT1 may also be disposed in the first curved groove CVG1 and the second sub-guide groove SGG2 in each of the second guide grooves GG2. The first protrusion PRT1 may move along the second guide grooves GG2. Therefore, the first supporting bar SB1 and the first supporting film SFM1 may move along the second guide grooves GG2.

[0158] refer to Fig. 20 , both sides of the second support bar SB2 opposite to each other in the second direction DR2 may be disposed in the third guide groove GG3. For example, the second protrusions PRT2 protruding from both sides of the second support bar SB2 may be disposed in the third sub-guide groove SGG3. The second supporting film SFM2 may not be disposed in the third guide groove GG3, but may be disposed between the side wall portions SWP.

[0159] Exemplarily, the second protrusion PRT2 disposed in the third sub-guide groove SGG3 is shown, but the second protrusion PRT2 may also be disposed in the second curved groove CVG2 and the fourth sub-guide groove SGG4 of each of the third guide grooves GG3. The second protrusion PRT2 may move along the third guide grooves GG3. Therefore, the second supporting bar SB2 and the second supporting film SFM2 may move along the third guide grooves GG3.

[0160] Fig.21 It shows that Fig.16 FIG. 4 is a view of a structure in which a display module and a support portion are arranged in a housing. Fig. 22 Is shown in the settings not in Fig.21 A view of the first supporting portion and the second supporting portion in the second guide groove and the third guide groove shown in FIG. Fig.23 It shows that Fig.21 A view of a structure in which the first protruding portion and the second protruding portion are arranged in the first guide groove, the second guide groove and the third guide groove.

[0161] For the following description, it will be described together as needed Fig.19 and Fig. 20 For example, in Fig.21 In the case of the housing CS in FIG. 1 , a portion of the housing CS adjacent to the opening portion OP is shown. Fig.21 and Fig. 22 4 shows the display module DM, the first, second and third guide grooves GG1, GG2 and GG3, and the sides of the first and second support portions SUP1 and SUP2 viewed from the second direction DR2, and other components have been omitted.

[0162] Fig.21Parts of the second guide groove GG2 and the third guide groove GG3 are shown, and Fig. 22 The remaining parts of the second guide groove GG2 and the third guide groove GG3 are shown in FIG. Fig.21 , the first guide groove GG1 is shown by a dotted line.

[0163] For example, Fig.23 4 shows the first and second protruding portions PRT1 and PRT2 and the side walls of the first, second and third guide grooves GG1, GG2 and GG3 as viewed from the second direction DR2, and other components have been omitted. Fig.23 Portions of the first guide groove GG1 , the second guide groove GG2 and the third guide groove GG3 are shown.

[0164] refer to Fig.21 and Fig. 22 , the end of the display module DM adjacent to the opening portion OP and the end of the first supporting film SFM1 and the second supporting film SFM2 adjacent to the opening portion OP may be connected to the first coupling portion CP1. According to the movement of the first coupling portion CP1, the display module DM, the first supporting film SFM1 and the second supporting film SFM2, and the first supporting bar SB1 and the second supporting bar SB2 may be pulled out of the case CS through the opening portion OP or may be introduced into the case CS through the opening portion OP.

[0165] The display module DM may be connected to the roller ROL and wound around the roller ROL. Since the groove GOV is defined in the lower surface LS of the display module DM, the display module DM may be more easily bent and wound around the roller ROL. The display module DM may include a first area AA1 wound around the roller ROL and a second area AA2 not wound around the roller ROL. The second area AA2 may be spaced apart from the roller ROL and may extend flatly in the first direction DR1.

[0166] Hereinafter, a configuration disposed on the lower surface LS of the display module DM may be expressed as a configuration disposed below the display module DM.

[0167] The first support bar SB1 and the second support bar SB2 may be alternately arranged. In the periphery of the first area AA1, the first support bar SB1 and the second support bar SB2 may be spaced apart from each other in the first direction DR1. When the first support bar SB1 and the second support bar SB2 are adjacent to the second area AA2, the first support bar SB1 and the second support bar SB2 may be close to each other.

[0168] The first supporting bars SB1 and the second supporting bars SB2 may be adjacent to each other below the second area AA2 and may be alternately disposed on the same layer in the first direction DR1. Thus, one second supporting bar SB2 may be disposed between two adjacent first supporting bars SB1.

[0169] The first guide groove GG1 may be disposed below the second area AA2. Fig.19 and Fig. 20 Similar to the structure shown in , the first support bar SB1 and the second support bar SB2 may be disposed in the first guide groove GG1 on two sides opposite to each other in the second direction DR2. Fig.23 As shown in FIG. 1 , first and second protrusion portions PRT1 and PRT2 protruding from both sides of the first and second supporting bars SB1 and SB2 may be disposed in the first guide groove GG1 .

[0170] refer to Figures 19 to 23 The first protrusion PRT1 may be disposed in the first and second guide grooves GG1 and GG2 to move along the first and second guide grooves GG1 and GG2. The second protrusion PRT2 may be disposed in the first and third guide grooves GG1 and GG3 to move along the first and third guide grooves GG1 and GG3.

[0171] Since the first protrusion portion PRT1 is disposed in the first guide groove GG1 and the second guide groove GG2, the first supporting bar SB1 and the first supporting film SFM1 may be disposed along the first guide groove GG1 and the second guide groove GG2. Therefore, the first supporting film SFM1 may have a shape similar to that of the first guide groove GG1 and the second guide groove GG2. The first supporting film SFM1 may include a first portion PT1 disposed under the second area AA2, and a first sub-portion SPT1 and a first rolling portion ROP1 extending from the first portion PT1.

[0172] The first portion PT1 may extend in the first direction DR1. The first roll-up portion ROP1 is spaced apart from the first portion PT1 in the third direction DR3 and is bent into a curved shape to have a rolled shape. The first sub-portion SPT1 may extend from one end of the first portion PT1 to the first roll-up portion ROP1 in the third direction DR3. The first roll-up portion ROP1 may extend from one end of the first sub-portion SPT1 and be rolled up.

[0173] Since the second protruding portion PRT2 is disposed in the first guide groove GG1 and the third guide groove GG3, the second supporting bar SB2 and the second supporting film SFM2 may be disposed along the first guide groove GG1 and the third guide groove GG3. Therefore, the second supporting film SFM2 may have a shape similar to that of the first guide groove GG1 and the third guide groove GG3. The second supporting film SFM2 may include a second portion PT2 disposed under the second area AA2, and a second sub-portion SPT2 and a second rolling portion ROP2 extending from the second portion PT2.

[0174] The second portion PT2 may extend in the first direction DR1. The second roll-up portion ROP2 is spaced apart from the second portion PT2 in the third direction DR3 and is bent into a curved shape to have a rolled shape. The second sub-portion SPT2 may extend from one end of the second portion PT2 to the second roll-up portion ROP2 in the third direction DR3. The second roll-up portion ROP2 may extend from one end of the second sub-portion SPT2 and be rolled up.

[0175] The first supporting bar SB1 disposed on the lower surface of the first rolling portion ROP1 may be arranged in a rolling shape along the first rolling portion ROP1. The lower surface of the first rolling portion ROP1 may correspond to a surface of the first sub-portion SPT1 facing the second sub-portion SPT2. The second supporting bar SB2 disposed on the upper surface of the second rolling portion ROP2 may be arranged in a rolling shape along the second rolling portion ROP2. The upper surface of the second rolling portion ROP2 may correspond to a surface of the second sub-portion SPT2 facing the first sub-portion SPT1.

[0176] The first and second protrusions PRT1 and PRT2 move along the second and third guide grooves GG2 and GG3 and may become close to each other when adjacent to the first guide groove GG1. The first and second protrusions PRT1 and PRT2 may be alternately disposed in the first guide groove GG1 in the first direction DR1.

[0177] Therefore, from the first roll-up portion ROP1 and the second roll-up portion ROP2, as the first support bar SB1 and the second support bar SB2 are closer to the first portion PT1 and the second portion PT2, the first support bar SB1 and the second support bar SB2 may become closer to each other. In addition, the first support bar SB1 and the second support bar SB2 may be adjacent to each other between the first portion PT1 and the second portion PT2, and may be alternately arranged in the first direction DR1.

[0178] For example, although the structures of the first support portion SUP1 and the second support portion SUP2 disposed in the first guide groove GG1, the second guide groove GG2, and the third guide groove GG3 have been described, the embodiments of the present invention are not limited thereto. For example, the first support portion SUP1 and the second support portion SUP2 may be respectively wound on rollers and may be unrolled from the rollers as needed.

[0179] When the second supporting portion SUP2 is not used and only the first supporting portion SUP1 is used, a space may be defined between the first supporting bars SB1 spaced apart from each other in the first direction DR1. In this case, the flatness of the second area AA2 of the display module DM may be reduced due to the space between the first supporting bars SB1. In an embodiment of the present invention, when the second supporting bars SB2 are disposed in the space between the first supporting bars SB1 below the second area AA2, the second area AA2 of the display module DM may be supported more flatly.

[0180] The first support bar SB1 and the second support bar SB2 can be easily arranged to be spaced apart from each other by the second guide groove GG2 and the third guide groove GG3 spaced apart from each other. If necessary, in the operation mode for pulling out the display module DM, the first support bar SB1 and the second support bar SB2 can be alternately arranged by moving to the first guide groove GG1. Therefore, if necessary, the first support bar SB1 and the second support bar SB2 spaced apart from each other can be moved to the first guide groove GG1 to easily support the display module DM.

[0181] Fig.24 and Fig.25 : is a view showing the configuration of a support portion according to an embodiment of the present invention.

[0182] In the following, we will mainly focus on Fig.16 The different configurations of the support parts SUP shown are described Fig.24 and Fig.25 2. The configuration of the support portion SUP_1 is shown in FIG. 2. In addition, the same reference numerals are used to indicate the same components.

[0183] refer to Fig.24 and Fig.25 , the support portion SUP_1 may include a first support portion SUP1 and a second support portion SUP2, and the first support portion SUP1 may include a first support film SFM1, a plurality of first support bars SB1, and a plurality of first protrusions PRT1. The second support portion SUP2 may include a second support film SFM2, a plurality of second support bars SB2, and a plurality of second protrusions PRT2. The configuration of the first support portion SUP1 and the second support portion SUP2 may be the same as Fig.16The configurations of the first supporting portion SUP1 and the second supporting portion SUP2 shown in FIG. 1 are substantially the same.

[0184] The support portion SUP_1 may further include a plurality of magnet units MTU. The magnet unit MTU may be disposed between the first support bars SB1 and may be disposed between the second support bar SB2 and the first support film SFM1. The magnet unit MTU may be disposed on the lower surface of the first support film SFM1 to be attached to the lower surface of the first support film SFM1. The magnet units MTU may be spaced apart from each other in the second direction DR2 and arranged in the first direction DR1.

[0185] The magnet unit MTU may be disposed between some of the first support bars SB1. For example, the magnet unit MTU is disposed between the (a×k)th first support bar SB1 and the ((a×k)+1)th first support bar SB1, and a is a natural number greater than 2 and may be a constant. k may be a positive integer.

[0186] The second support bar SB2 can be attached to the magnet unit MTU by the magnetic force of the magnet unit MTU.Therefore, the second support bar SB2 can be aligned more easily.

[0187] Fig.26 : is a view showing the configuration of a support portion according to an embodiment of the present invention. Fig. 27 It is shown that there are Fig.26 A view of the first, second and third guide grooves of the first and second protruding parts shown in FIG.

[0188] In the following, we will mainly focus on Fig.16 The different configurations of the support parts SUP shown are described Fig.26 and Fig. 27 2. In addition, the same reference numerals are used to indicate the same components. For example, the first guide groove GG1 'is composed of Fig.26 The dotted line in FIG.

[0189] refer to Fig.26 , the support part SUP_2 may include a first support part SUP1' and a second support part SUP2'. The first support part SUP1' may include a first supporting film SFM1, a plurality of first supporting bars SB1' and a plurality of first protruding parts PRT1. The second support part SUP2' may include a second supporting film SFM2, a plurality of second supporting bars SB2' and a plurality of second protruding parts PRT2.

[0190] The configurations of the first and second supporting films SFM1 and SFM2 and the first and second protruding portions PRT1 and PRT2 may be similar to Fig.16The configurations of the first and second supporting films SFM1 and SFM2 and the first and second protruding portions PRT1 and PRT2 shown in FIG. 1 are substantially the same.

[0191] The first supporting bar SB1' may be disposed on a lower surface of the first supporting film SFM1 facing the second supporting film SFM2. The second supporting bar SB2' may be disposed on an upper surface of the second supporting film SFM2 facing the first supporting film SFM1. The first supporting bar SB1' and the second supporting bar SB2' may be disposed between the first supporting film SFM1 and the second supporting film SFM2.

[0192] The first support bar SB1' may be disposed on an upper surface of the second support bar SB2'. The first support bar SB1' may be disposed alternately with the second support bar SB2'. When viewed from the second direction DR2, the first support bars SB1' may be coupled to each other to rotate about a first rotation axis RX1 parallel to the second direction DR2. The second support bars SB2' may be coupled to each other to rotate about a second rotation axis RX2 parallel to the second direction DR2.

[0193] The second support portion SUP2' may further include a plurality of protrusions PRT protruding from the upper surface of the second support bar SB2' facing the first support bar SB1'. The protrusion PRT protruding from the hth second support bar SB2' may be disposed between the hth first support bar SB1' and the (h+1)th first support bar SB1'. h is a positive integer.

[0194] One surface of the first supporting bar SB1' facing the second supporting bar SB2' may be defined as a lower surface of the first supporting bar SB1'. One side of the h-th first supporting bar SB1' adjacent to the lower surface of the h-th first supporting bar SB1' and one side of the (h+1)-th first supporting bar SB1' adjacent to the lower surface of the (h+1)-th first supporting bar SB1' may be spaced apart from each other to face and have an inclined surface.

[0195] A protruding portion PRT protruding from the upper surface of the h-th second support bar SB2' may be disposed in the first insertion groove IG1 defined between one side of the h-th first support bar SB1' and one side of the (h+1)-th first support bar SB1'. When viewed from the second direction DR2, each of the protruding portion PRT and the first insertion groove IG1 may have a trapezoidal shape. Since the first insertion groove IG1 is defined between the first support bars SB1', the first support bar SB1' may be easily disposed in the first curved groove CVG1.

[0196] One surface of the second supporting bar SB2' facing the second supporting film SFM2 may be defined as a lower surface of the second supporting bar SB2'. One side of the h-th second supporting bar SB2' adjacent to the lower surface of the h-th second supporting bar SB2' and one side of the (h+1)-th second supporting bar SB2' adjacent to the lower surface of the (h+1)-th second supporting bar SB2' may be spaced apart from each other to face and have an inclined surface.

[0197] The second insertion groove IG2 may be defined between one side of the hth first support bar SB1' and one side of the (h+1)th first support bar SB1'. Since the second insertion groove IG2 is defined between the second support bars SB2', the second support bar SB2' may be easily disposed in the second curved groove CVG2.

[0198] refer to Fig.26 and Fig. 27 , the first guide groove GG1 ′ may include a first sub-guide groove GG1_1 and a second sub-guide groove GG1_2 extending in the first direction DR1 and spaced apart from each other in the third direction DR3 .

[0199] The second guide groove GG2 may extend from the first sub-guide groove GG1_1. The third guide groove GG3 may extend from the second sub-guide groove GG1_2. The second guide groove GG2 and the third guide groove GG3 may extend from the second sub-guide groove GG1_2. Fig.15 The second guide groove GG2 and the third guide groove GG3 shown in FIG. 1 are identical.

[0200] The first protrusion PRT1 may be disposed in the first sub-guide groove GG1_1 and the second guide groove GG2. The first protrusion PRT1 may move along the first sub-guide groove GG1_1 and the second guide groove GG2. The second protrusion PRT2 may be disposed in the second sub-guide groove GG1_2 and the third guide groove GG3. The second protrusion PRT2 may move along the second sub-guide groove GG1_2 and the third guide groove GG3.

[0201] Although described with reference to the embodiments, it will be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention described in the appended claims. In addition, the embodiments disclosed in the present invention are not intended to limit the technical concept of the present invention, and all technical concepts within the scope of the appended claims and equivalents should be interpreted as being included within the scope of the present invention.

[0202] Industrial Applicability

[0203] Since the technology for improving the surface quality of a display module can provide a higher quality image to a user, the present invention has high industrial applicability.

Claims

1. Display equipment, including: Display module; A first supporting film, disposed under the display module; a second supporting film, disposed below the first supporting film; a plurality of first supporting strips disposed on a lower surface of the first supporting film between the first supporting film and the second supporting film; a plurality of second supporting strips disposed on an upper surface of the second supporting film between the first supporting film and the second supporting film; as well as roller, connected to one end of the display module, wherein the plurality of first support bars and the plurality of second support bars are arranged alternately, and The display module includes a first region wound around the roller, and the first region is separated from the first supporting film and the second supporting film and the plurality of first supporting bars and the plurality of second supporting bars.

2. The display device according to claim 1, wherein: The plurality of first support bars and the plurality of second support bars are arranged in a first direction and extend in a second direction intersecting the first direction.

3. The display device according to claim 2, in, The display module further includes a second region extending in the first direction without being wrapped around the roller; The plurality of first supporting bars and the plurality of second supporting bars disposed below the second region are alternately disposed on the same layer.

4. The display device according to claim 3, wherein: The first supporting film comprises: A first portion is disposed below the second area; and a first rolled-up portion extending from the first portion and being bent and rolled up into a curved shape, Wherein, the second supporting film comprises: a second portion disposed below the second region; and A second rolled-up portion, spaced apart from the first rolled-up portion, extends from the second portion and is bent and rolled into a curved shape.

5. The display device according to claim 4, wherein: From the first rolling portion and the second rolling portion, the first plurality of supporting bars and the second plurality of supporting bars are closer to each other as they approach the first portion and the second portion. The plurality of first supporting bars and the plurality of second supporting bars are adjacent to each other between the first portion and the second portion and are alternately arranged in the first direction.

6. The display device according to claim 4, wherein: The plurality of first supporting bars provided on the first rolling portion are arranged in a rolling shape along the first rolling portion, and the plurality of second supporting bars provided on the second rolling portion are arranged in a rolling shape along the second rolling portion.

7. The display device according to claim 2, further comprising a housing accommodating the display module, the first and second supporting films, and the plurality of first and second supporting bars, wherein: An opening portion for pulling in and out the display module, the first and second supporting films, and the plurality of first and second supporting bars is defined in the housing.

8. The display device according to claim 7, wherein: Both sides of the plurality of first support bars are disposed in a first guide groove and a second guide groove, the first guide groove being defined on an inner surface of the housing facing each other in the second direction, the second guide groove being defined on the inner surface of the housing and extending from the first guide groove, Wherein, both sides of the plurality of second support bars are disposed in the first guide groove and a third guide groove, and the third guide groove is defined on the inner surface of the housing to extend from the first guide groove and be spaced apart from the second guide groove.

9. The display device according to claim 8, wherein: The first guide groove extends toward the opening portion in the first direction, wherein the second guide groove and the third guide groove extend from an end of the first guide groove opposite to the opening portion, Wherein, the second guide groove is arranged to extend between the third guide groove and the display module.

10. The display device according to claim 9, further comprising: a plurality of first protruding portions protruding from the two sides of the plurality of first support bars and disposed in the first guide groove and the second guide groove; as well as a plurality of second protruding portions protruding from the both sides of the plurality of second supporting bars and disposed in the first guide groove and the third guide groove, The plurality of first protruding portions and the plurality of second protruding portions move along the first guide groove, the second guide groove, and the third guide groove.

11. The display device according to claim 10, wherein: The plurality of first protruding portions and the plurality of second protruding portions are alternately arranged in the first direction in the first guide groove.

12. The display device according to claim 9, wherein: The second guide groove comprises: a first curved groove extending from the one end of the first guide groove to have a curved shape; a first sub-guide groove extending from one end of the first curved groove in a third direction intersecting a plane defined by the first direction and the second direction; and The second sub guide groove extends from one end of the first sub guide groove to have a rolled shape.

13. The display device according to claim 12, wherein: The third guide groove comprises: a second curved groove extending from the one end of the first guide groove to have a curved shape; a third sub-guide groove extending from one end of the second curved groove in the third direction; and a fourth sub-guide groove extending from one end of the third sub-guide groove to have a rolled shape, Wherein, the fourth sub-guide groove is arranged between the first guide groove and the second sub-guide groove.

14. The display device according to claim 7, further comprising: a coupling portion provided on a portion of the housing adjacent to the opening portion and connected to an end portion of the display module adjacent to the opening portion and ends of the first supporting film and the second supporting film adjacent to the opening portion; as well as A moving portion is connected to the housing and the coupling portion to move away from or toward the opening portion in the first direction.

15. The display device according to claim 2, wherein: A plurality of grooves extending in the second direction and arranged in the first direction are defined on a lower surface of the display module.

16. The display device according to claim 2, wherein: Also included is a plurality of magnet units disposed between the plurality of first supporting bars and between the plurality of second supporting bars and the first supporting film.

17. The display device according to claim 16, wherein: The plurality of magnet units are disposed between the (a×k)th first supporting bar and the ((a×k)+1)th first supporting bar, wherein a is a natural number greater than 2 and a constant, and k is a positive integer.

18. The display device according to claim 16, wherein: The plurality of magnet units are spaced apart from each other in the second direction and are arranged in the first direction.

19. The display device according to claim 2, wherein: The plurality of first support bars are coupled to rotate with each other about a plurality of first rotation axes parallel to the second direction, The plurality of second support bars are disposed below the plurality of first support bars and are coupled to rotate with each other around a plurality of second rotation axes parallel to the second direction.

20. The display device according to claim 19, further comprising a protruding portion protruding from an upper surface of the h-th second supporting bar, in, The protruding portion is disposed between the hth first supporting bar and the (h+1)th first supporting bar, where h is a positive integer.

21. The display device according to claim 20, wherein: One side of the h-th first supporting bar adjacent to the lower surface of the h-th first supporting bar and one side of the (h+1)-th first supporting bar adjacent to the lower surface of the (h+1)-th first supporting bar are spaced apart from each other to face each other and have a slope, wherein the protruding portion is disposed in an insertion groove defined between the one side of the hth first supporting bar and the one side of the (h+1)th first supporting bar, Wherein, one side of the hth second supporting bar adjacent to the lower surface of the hth second supporting bar and one side of the (h+1)th second supporting bar adjacent to the lower surface of the (h+1)th second supporting bar are spaced apart from each other to face and have a slope.

Images