Nozzle cleaning device

Abstract

The utility model provides a nozzle cleaning device which can comprise a main body part and a cleaning part arranged on the side surface of the main body part, and the cleaning part can comprise a plurality of driving parts which are arranged in a groove limited in the side surface of the main body part and are arranged in a first direction; and a plurality of pad portions disposed on inner surfaces of the plurality of driving portions facing each other and including a plurality of protruding portions extending in the first direction, and wherein the protruding portions may be disposed on inner surfaces of the plurality of pad portions facing each other.

Description

Technical Field

[0001] The utility model relates to a nozzle cleaning device. Background Art

[0002] Display devices such as televisions, monitors, smartphones, and tablet computers that provide images to users include display panels that display images. As display panels, various display panels such as liquid crystal display panels, organic light emitting display panels, electrowetting display panels, and electrophoretic display panels have been developed.

[0003] In order to prevent light generated from the display panel from leaking to the outside of the display panel, a light shielding layer may be included. The light shielding layer may include resin. The resin may be sprayed by a nozzle. After spraying the resin, the nozzle may be cleaned. Utility Model Content

[0004] Technical issues to be solved

[0005] The utility model aims to provide a nozzle cleaning device and a nozzle cleaning method which can prevent defects of a display panel by completely removing resin adhered to a nozzle.

[0006] Workaround

[0007] According to one embodiment of the utility model, a nozzle cleaning device may include a main body and a cleaning part arranged on the side surface of the main body, wherein the cleaning part may include: a plurality of driving parts, which are arranged in grooves defined on the side surface of the main body and arranged in a first direction; and a plurality of pad parts, which are arranged on inner surfaces of the plurality of driving parts facing each other and include a plurality of protrusions extending in the first direction, and wherein the protrusions may be arranged on inner surfaces of the pad parts facing each other.

[0008] According to an embodiment of the utility model, the nozzle cleaning method may include: a step of arranging the nozzle tip to be adjacent to a cleaning part; a step of fixing the nozzle tip by the cleaning part; and a step of cleaning the resin adhered to the nozzle tip, wherein the cleaning part may include: a plurality of driving parts arranged in a first direction; and a plurality of pad parts arranged between inner surfaces of the plurality of driving parts facing each other in the first direction and including a plurality of protrusions, and wherein the protrusions may be arranged on inner surfaces of the plurality of pad parts facing each other.

[0009] Beneficial Effects

[0010] According to an embodiment of the utility model, the inner surfaces of the plurality of pads facing each other may have a plurality of protrusions. The plurality of protrusions facing each other may have shapes corresponding to each other. The plurality of protrusions may engage with each other. When the nozzle is fixed between the inner surfaces of the plurality of pads, the outer surface of the nozzle may be surrounded by the protrusions. Therefore, the resin adhering to the surface of the nozzle can be completely removed, thereby preventing defects of the display panel caused by the resin adhering to the surface of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic view of a nozzle cleaning device according to an embodiment of the utility model.

[0012] Figure 2a and Figure 2b It is shown Figure 1 A view of the cleaning section shown in FIG.

[0013] Figure 3 It is a perspective view of a display device.

[0014] Figure 4 yes Figure 3 A cross-sectional view of a display device shown in FIG.

[0015] Figure 5 It is shown exemplarily Figure 4 A view of a cross section of a display panel is shown in FIG.

[0016] Figure 6 yes Figure 5 A plan view of the display panel shown in FIG.

[0017] Figure 7a is a view for explaining resin coated on a display panel.

[0018] Figure 7b It is a view for explaining a nozzle for spraying resin.

[0019] Figures 8a to 8e This is a view for explaining a nozzle cleaning method using the nozzle cleaning device of the present invention.

[0020] Figures 9a to 9d It is a view for explaining a nozzle cleaning device according to a comparative example.

[0021] Description of Reference Numerals

[0022] NCD: Nozzle cleaning device MBD: Main body

[0023] CPT: Cleaning part DPT: Driving part

[0024] SPD: pad part BS: foundation part

[0025] PRT: Protrusion WPR: Wipe piece

[0026] SPT: Supply Section RCP: Containment Section

[0027] SUP: Support part RPT: Rotary support part

[0028] CVP: Cover NOZ: Nozzle

[0029] NZT: Nozzle Tip DETAILED DESCRIPTION

[0030] The advantages and features of the present invention and the method for achieving these advantages and features will be described later with reference to the attached drawings. Figure 1 The present invention will become clear from the detailed description of the embodiments. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms that are different from each other. The embodiments are only provided to make the disclosure of the present invention complete and to fully inform the ordinary technicians in the technical field to which the present invention belongs of the scope of the present invention. The present invention is limited only by the scope of the claims. Throughout the specification, the same figure numerals refer to the same constituent elements.

[0031] When an element or layer is referred to as being "on" or "over" another element or layer, it includes not only being directly over the other element or layer, but also including other layers or other elements interposed therebetween. Conversely, when an element is referred to as being "directly on" or directly over another element, it indicates that no other elements or layers are interposed therebetween. "And / or" includes each of the multiple items mentioned and all combinations of more than one of the multiple items.

[0032] In order to easily describe the relationship between one element or constituent element and another element or constituent element as shown in the figure, spatial relative terms such as "below", "beneath", "lower", "above", "upper", etc. can be used. It should be understood that in addition to the directions shown in the figures, spatial relative terms are terms that also include different directions of elements when they are used or operated. Throughout the specification, the same reference numerals refer to the same constituent elements.

[0033] Although the terms "first", "second", etc. are used to describe various elements, constituent elements and / or parts, these elements, constituent elements and / or parts are obviously not limited by these terms. These terms are only used to distinguish one element, constituent element and / or part from another element, constituent element and / or part. Therefore, the first element, first constituent element or first part mentioned below can obviously also be the second element, second constituent element or second part within the technical concept of the utility model.

[0034] The embodiments described in this specification will be described with reference to the plan views and cross-sectional views as idealized schematic diagrams of the utility model. Therefore, the morphology of the example diagrams may be modified due to manufacturing technology and / or allowable errors. Therefore, the embodiments of the utility model are not limited to the specific morphology shown, but also include changes in morphology produced according to the manufacturing process. Therefore, the areas illustrated in the figures have schematic properties, and the shapes of the areas illustrated in the figures are used to illustrate the specific morphology of the areas of the elements, and are not used to limit the scope of the utility model.

[0035] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0036] Figure 1 The invention discloses a nozzle cleaning device according to an embodiment of the invention. Figure 2a and Figure 2b yes Figure 1 The cleaning section shown in .

[0037] For example, Figure 1 Shown as a perspective view.

[0038] For ease of explanation, Figure 2a and Figure 2b The front surface of the cleaning portion CPT is shown.

[0039] Reference Figure 1 , the nozzle cleaning device NCD may include a main body part MBD, a cleaning part CPT, a supply part SPT, a receiving part RCP, a plurality of supporting parts SUP and a plurality of wipers WRP. Exemplarily, the main body part MBD may have a rectangular parallelepiped shape. The upper surface of the main body part MBD may have a rectangular shape having a long side extending in a first direction DR1 and a short side extending in a second direction DR2 intersecting the first direction DR1. However, this is exemplary, and the shape of the main body part MBD is not limited thereto and may be various.

[0040] Hereinafter, a direction substantially perpendicularly crossing a plane defined by the first direction DR1 and the second direction DR2 is defined as a third direction DR3. In addition, in this specification, "when viewed on a plane" may be defined as a state viewed in the third direction DR3.

[0041] Two side surfaces of the body part MBD opposite to each other in the second direction DR2 may be planes defined by the first direction DR1 and the third direction DR3. Two side surfaces of the body part MBD opposite to each other in the second direction DR2 may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the third direction DR3.

[0042] The groove GR may be defined in one of the side surfaces of the body part MBD that are opposite to each other in the second direction DR2. Hereinafter, the side surface in which the groove GR is defined among the two side surfaces of the body part MBD that are opposite to each other in the second direction DR2 may be defined as a first surface PLL1. The groove GR may be adjacent to the upper surface of the body part MBD. The groove GR may extend in the first direction DR1.

[0043] The cleaning portion CPT may be disposed in a groove GR defined in the main body portion MBD. The cleaning portion CPT may be disposed in the groove GR and reciprocate in the first direction DR1. The reciprocating movement of the cleaning portion CPT will be Figure 8b and Figure 8c Detailed description in.

[0044] One end of the cleaning portion CPT may be bent. A portion of the cleaning portion CPT may be bent at a predetermined angle relative to a straight line perpendicular to the first surface PLL1 of the main body portion MBD. Exemplarily, the angle formed by the portion of the cleaning portion CPT and the straight line perpendicular to the first surface PLL1 of the main body portion MBD may be 30 degrees. However, this is exemplary, and the angle formed by the portion of the cleaning portion CPT and the straight line perpendicular to the first surface PLL1 of the main body portion MBD is not limited thereto and may be changed.

[0045] Reference Figure 1 , Figure 2a and Figure 2b , the cleaning part CPT may include a plurality of driving parts DPT and a plurality of pad parts SPD. Although two driving parts DPT and two pad parts SPD are exemplarily shown, the number of the driving parts DPT and the pad parts SPD is not limited thereto. For the convenience of explanation, Figure 2a and Figure 2b , the front surface of the driving portion DPT and the front surface of the pad portion SPD are shown, and other configurations are omitted.

[0046] The driving part DPT may be arranged in the groove GR defined in the first surface PLL1. A plurality of driving parts DPT may be arranged in the groove GR along the first direction DR1. A plurality of driving parts DPT may face each other in the first direction DR1. Hereinafter, surfaces of the plurality of driving parts DPT facing each other may be defined as inner surfaces of the driving part DPT.

[0047] The driving part DPT can reciprocate in the first direction DR1. Although not shown, the driving part DPT can reciprocate in the first direction DR1 along the groove GR by a motor arranged in the main body part MBD. As the driving part DPT moves, the plurality of driving parts DPT can move closer to or farther from each other. The movement of the driving part DPT will Figure 8b and Figure 8c Detailed description in.

[0048] The pad portion SPD may be arranged between driving portions DPT spaced apart from each other along the first direction DR1. Each of the plurality of pad portions SPD may be arranged on an inner surface of a corresponding driving portion DPT among the plurality of driving portions DPT. The plurality of pad portions SPD may face each other in the first direction DR1. Hereinafter, surfaces of the plurality of pad portions SPD facing each other may be defined as inner surfaces of the pad portion SPD.

[0049] Exemplarily, the inner surface of the pad portion SPD may have a zigzag shape. However, the shape of the inner surface of the pad portion SPD is not limited thereto and may have various shapes.

[0050] The inner surface of any one pad portion SPD may have a shape corresponding to the inner surface of another pad portion SPD. Figure 2b As shown in , the inner surfaces of the plurality of pad portions SPD may have shapes that mesh with each other. Exemplarily, the zigzag shapes of the plurality of pad portions SPD may be arranged alternately and correspond to each other.

[0051] Exemplarily, the pad portion SPD may include a foamed sponge. Since the pad portion SPD includes the foamed sponge, the shape of the inner surface of the pad portion SPD may be modified to conform to the nozzle tip NZT (see FIG. 1 ) to be described later. Figure 8b ) in shape. However, not limited thereto, the pad portion SPD may include other materials to deform its shape.

[0052] Since the pad portion SPD is connected to the driving portion DPT, when the driving portion DPT reciprocates in the first direction DR1, the pad portion SPD can reciprocate in the first direction DR1. The plurality of pad portions SPD can approach or move away from each other in the first direction DR1. When the distance between the plurality of pad portions SPD becomes closer, the pad portion SPD can contact the nozzle tip NZT (refer to FIG. 1 ) which will be described later. Figure 8c ). The pad SPD contacts the nozzle tip NZT (refer to Figure 8c ) will be Figure 8c Detailed description in.

[0053] The pad portion SPD may include a base portion BS and a plurality of protrusions PRT. The plurality of base portions BS may be arranged on inner surfaces of the driving portion DPT facing each other. The plurality of protrusions PRT may be arranged on inner surfaces of the plurality of base portions BS facing each other. The protrusions PRT may be arranged from the upper portion of the base portion BS to the lower portion of the base portion BS. The protrusions PRT may extend toward the inner surface of another base portion BS facing each other.

[0054] Reference Figure 1 , the supply part SPT may be arranged on the first surface PLL1 of the body part MBD. When viewed in the second direction DR2, the supply part SPT may be arranged below the cleaning part CPT. A plurality of supply parts SPT may be arranged spaced apart in the first direction DR1. A distance between the plurality of supply parts SPT spaced apart from each other in the first direction DR1 may be greater than a length of the groove GR in the first direction DR1.

[0055] Exemplarily, when viewed in the second direction DR2, the supply portion SPT may have a circular shape. The supply portion SPT may rotate around a rotation axis parallel to the second direction DR2. The rotation directions of the supply portion SPT may be different from each other. Exemplarily, when viewed in the second direction DR2, the supply portion SPT arranged on the left may rotate clockwise, and the supply portion SPT arranged on the right may rotate counterclockwise. However, this is exemplary, and the rotation direction of the supply portion SPT is not limited thereto.

[0056] The receiving portion RCP may be disposed on the first surface PLL1 of the body portion MBD. The receiving portion RCP may be disposed below the supply portion SPT. The receiving portion RCP may be adjacent to the lower surface of the body portion MBD than the supply portion SPT.

[0057] The plurality of receiving parts RCP may be arranged at intervals in the first direction DR1. The distance between the plurality of receiving parts RCP spaced apart from each other in the first direction DR1 may be smaller than the distance between the plurality of supply parts SPT. The distance between the plurality of receiving parts RCP may be greater than the length of the groove GR in the first direction DR1.

[0058] When viewed in the second direction DR2, illustratively, the accommodating portion RCP may have a circular shape. The accommodating portion RCP may rotate around a rotation axis parallel to the second direction DR2. The rotation directions of the plurality of accommodating portions RCP may be different from each other. Exemplarily, when viewed in the second direction DR2, the accommodating portion RCP arranged on the left side may rotate clockwise, and the accommodating portion RCP arranged on the right side may rotate counterclockwise. However, this is exemplary, and the rotation direction of the accommodating portion RCP is not limited thereto.

[0059] The support parts SUP may be arranged on the side surface of the main body part MBD. The two pairs of support parts SUP may be spaced apart in the third direction DR3. When viewed in the second direction DR2, one pair of support parts SUP in the two pairs of support parts SUP may be arranged above the cleaning part CPT. The other pair of support parts SUP may be arranged below the cleaning part CPT. The cleaning part CPT may be arranged between the two pairs of support parts SUP. In the following, for the sake of convenience, any pair of support parts SUP will be described.

[0060] Department SUP.

[0061] The pair of support portions SUP may be arranged to be spaced apart from each other in the first direction DR1. For example, a distance between the pair of support portions SUP in the first direction DR1 may be smaller than a length of the groove GR in the first direction DR1.

[0062] Exemplarily, the support portion SUP may have a cylindrical shape. Each of the support portions SUP may extend from the first surface PLL1 of the body portion MBD along the second direction DR2. However, this is exemplary, and the shape of the support portion SUP is not limited thereto. The support portion SUP may rotate around a rotation axis parallel to the second direction DR2.

[0063] The support part SUP may include a cover part CVP and a rotating support part RPT. One of the two sides of the rotating support part RPT opposite to each other in the second direction DR2 may be arranged on the first surface PLL1 of the body part MBD. The other side of the rotating support part RPT may be connected to the cover part CVP. The rotating support part RPT may have a cylindrical shape extending in the second direction DR2. The rotating support part RPT may support a wiper WPR to be described later.

[0064] The cover portion CVP may have a disc shape. When viewed in the second direction DR2, the size of the radius of the cover portion CVP may be greater than the size of the radius of the rotation support portion RPT. The cover portion CVP may prevent the wiper WPR, which will be described later, from being detached from the rotation support portion RPT.

[0065] One side of the wiper WPR may be wound on the supply part SPT. The other side of the wiper WPR may pass between the pad parts SPD of the cleaning part CPT and be connected to the receiving part RCP. Part of the wiper WPR may be arranged on the outer surface of the rotation support part RPT.

[0066] like Figure 1 As shown in FIG. 1 , the length of the wiper WPR wound on the supply portion SPT may be greater than the length of the wiper WPR wound on the receiving portion RCP. Figure 8a), the supply part SPT and the receiving part RCP can rotate, and the wiper WPR can move from the supply part SPT to the receiving part RCP. At this time, the wiper WPR can move along the outer surface of the rotating support part RPT. The movement of the wiper WPR will be Figure 8a Detailed description in.

[0067] Figure 3 It is a perspective view of a display device.

[0068] Reference Figure 3 , the display device DD may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2. However, not limited thereto, the display device DD may have various shapes such as a circle and a polygon.

[0069] An upper surface of the display device DD may be defined as a display surface DS, and the display surface DS may have a plane defined by the first direction DR1 and the second direction DR2. An image IM generated in the display device DD may be provided to a user through the display surface DS.

[0070] The display surface DS may include a display area DA and a non-display area NDA around the display area DA. The display area DA may display an image, and the non-display area NDA may not display an image. The non-display area NDA may surround the display area DA and may define a frame of the display device DD printed in a predetermined color.

[0071] Figure 4 yes Figure 3 A cross-sectional view of a display device shown in FIG.

[0072] The display device DD may include a display panel DP, an input sensing portion ISP, a reflection prevention layer RPL, and a window WIN. The display panel DP may be transparent. For example, Figure 4 The display panel DP 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 an inorganic light-emitting display panel. The light-emitting layer of the organic light-emitting display panel may include an organic light-emitting substance. The light-emitting layer of the inorganic light-emitting display panel may include quantum dots and quantum rods, etc. Hereinafter, the display panel DP is described as an organic light-emitting display panel.

[0073] The input sensing part ISP may be arranged on the display panel DP. The input sensing part ISP may include a plurality of sensor parts (not shown) for sensing external input in a capacitive manner. When manufacturing the display device DD, the input sensing part ISP may be directly manufactured on the display panel DP. However, not limited thereto, the input sensing part ISP may be manufactured as a panel separated from the display panel DP and may be attached to the display panel DP through an adhesive layer.

[0074] The reflection prevention layer RPL may be disposed on the input sensing part ISP. The reflection prevention layer RPL may be directly formed on the input sensing part ISP, or may be bonded to the input sensing part ISP through an adhesive layer. The reflection prevention layer RPL may be defined as an external light reflection prevention film. The reflection prevention layer RPL may reduce the reflectivity of external light incident from above the display device DD toward the display panel DP.

[0075] When external light traveling toward the display panel DP is reflected by the display panel DP and provided to an external user again, the user may visually recognize the external light like looking at a mirror. To prevent this phenomenon, the reflection prevention layer RPL may include a plurality of color filters showing the same color as the pixels of the transparent display panel DP.

[0076] The color filter may filter the external light to the same color as the pixel. In this case, the external light may not be visually recognized by the user. However, not limited to this, the reflection prevention layer RPL may include a polarizing film for reducing the reflectivity of the external light. The polarizing film may include a phase retarder and / or a polarizer.

[0077] The window WIN may be disposed on the reflection prevention layer RPL. The window WIN may be directly formed on the reflection prevention layer RPL, or may be bonded to the reflection prevention layer RPL through an adhesive layer. The window WIN may protect the transparent display panel DP, the input sensing part ISP, and the reflection prevention layer RPL from scratches and impacts from the outside.

[0078] Figure 5 It is shown exemplarily Figure 4 A view of a cross section of a display panel is shown in FIG.

[0079] For example, Figure 5 Schematic diagram of a cross section of the display panel DP viewed in the first direction DR1 is shown in FIG.

[0080] Reference Figure 5 The display panel DP may include a substrate SUB, a circuit element layer DP-CL arranged on the substrate SUB, a display element layer DP-OLED arranged on the circuit element layer DP-CL, and a thin film encapsulation layer TFE arranged on the display element layer DP-OLED.

[0081] The substrate SUB may include a display area DA and a non-display area NDA around the display area DA. The substrate SUB may include a flexible plastic material such as glass or polyimide (PI). The display element layer DP-OLED may be arranged on the display area DA.

[0082] A plurality of pixels may be arranged in the circuit element layer DP-CL and the display element layer DP-OLED. Each of the pixels may include a transistor arranged in the circuit element layer DP-CL and a light emitting element arranged in the display element layer DP-OLED and connected to the transistor. The composition of the pixel will be described in detail in FIG. 7.

[0083] The thin film encapsulation layer TFE may be arranged on the circuit element layer DP-CL to cover the display element layer DP-OLED. The thin film encapsulation layer TFE may protect the pixels from moisture, oxygen, and external foreign matter.

[0084] Figure 6 yes Figure 5 A plan view of the display panel shown in FIG.

[0085] Reference Figure 6 The display device DD may include a display panel DP, a black matrix BM, a scan driver SDV (scan driver), a data driver DDV (data driver), an emission driver EDV (emission driver), a printed circuit board PCB and a timing controller T-CON.

[0086] The display panel DP may include a first portion AA1, a second portion AA2, and a bent portion BA disposed between the first portion AA1 and the second portion AA2. The first portion AA1, the bent portion BA, and the second portion AA2 may be arranged in a first direction DR1, and the bent portion BA may extend in a second direction DR2. The bent portion BA may extend from the first portion AA1 along the first direction DR1, and the second portion AA2 may extend from the bent portion BA along the first direction DR1.

[0087] The first portion AA1 may have long sides extending in the first direction DR1 and facing each other in the second direction DR2. The lengths of the bent portion BA and the second portion AA2 may be smaller than the length of the first portion AA1 based on the second direction DR2.

[0088] The first portion AA1 may include a display area DA and a non-display area NDA around the display area DA. The non-display area NDA may surround the display area DA. The display area DA may display an image, and the non-display area NDA may not display an image. The second portion AA2 and the bent portion BA may not display an image.

[0089] 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, a plurality of emission lines EL1 to ELm, a first control line CSL1 and a second control line CSL2, a first power line PL1, a second power line PL2, a plurality of connection lines CNL, and a plurality of pads PD. m and n are natural numbers greater than 0. The pixels PX may be arranged in the display area DA and connected to the scan lines SL1 to SLm, the data lines DL1 to DLn, and the emission lines EL1 to ELm.

[0090] The scan driving part SDV and the light emitting driving part EDV may be disposed in the non-display area NDA. The scan driving part SDV and the light emitting driving part EDV may be disposed in the non-display area NDA adjacent to the long sides of the first portion AA1, respectively. The data driving part DDV may be disposed in the second portion AA2.

[0091] The data driving part DDV may be manufactured in the form of an integrated circuit chip and mounted on the second portion AA2. The data driving part DDV may be defined as a driving IC.

[0092] The scan lines SL1 to SLm may extend in the second direction DR2 and be connected to the scan driving part SDV. The data lines DL1 to DLn may extend in the first direction DR1 and may be connected to the data driving part DDV via the bent portion BA. The emission lines EL1 to ELm may extend in the second direction DR2 and be connected to the emission driving part EDV.

[0093] The first power line PL1 may extend in the first direction DR1 and be arranged in the non-display area NDA. The first power line PL1 may be arranged between the display area DA and the light emitting driving part EDV. However, not limited thereto, the first power line PL1 may also be arranged between the display area DA and the scanning driving part SDV.

[0094] The first power line PL1 may extend to the second portion AA2 via the bent portion BA. When viewed on a plane, the first power line PL1 may extend toward a lower end of the second portion AA2. The first power line PL1 may receive a first voltage.

[0095] The second power line PL2 may be disposed in a non-display area NDA opposite to the second portion AA2 across the display area DA and adjacent to a long side of the first portion AA1. The second power line PL2 may be disposed at the periphery compared to the scan driving part SDV and the light emitting driving part EDV.

[0096] The second power line PL2 may extend to the second portion AA2 via the bent portion BA. The second power line PL2 may extend in the first direction DR1 across the data driving part DDV in the second portion AA2. When viewed on a plane, the second power line PL2 may extend toward a lower end of the second portion AA2.

[0097] The second power line PL2 may receive a second voltage having a level lower than the first voltage. Although the connection relationship is not shown for convenience of explanation, the second power line PL2 may extend to the display area DA and be connected to the pixel PX, and the second voltage may be provided to the pixel PX through the second power line PL2.

[0098] The connection line CNL may extend in the second direction DR2 and may be arranged in the first direction DR1. The connection line CNL may be connected to the first power line PL1 and the pixel PX. The first voltage may be applied to the pixel PX through the first power line PL1 and the connection line CNL connected to each other.

[0099] The first control line CSL1 may be connected to the scan driving part SDV and may extend toward the lower end of the second portion AA2 via the bent portion BA. The second control line CSL2 may be connected to the light emitting driving part EDV and may extend toward the lower end of the second portion AA2 via the bent portion BA. The data driving part DDV may be disposed between the first control line CSL1 and the second control line CSL2.

[0100] The pad PD may be disposed adjacent to the lower end of the second portion AA2 when viewed on a plane. The data driving part DDV, the first and second power lines PL1 and PL2, the first and second control lines CSL1 and CSL2 may be connected to the pad PD.

[0101] The data lines DL1 to DLn may be connected to corresponding pads PD through a data driving part DDV. For example, the data lines DL1 to DLn may be connected to the data driving part DDV, and the data driving part DDV may be connected to pads PD respectively corresponding to the data lines DL1 to DLn.

[0102] The printed circuit board PCB may be connected to the pad PD. The timing controller T-CON may be arranged on the printed circuit board PCB. The timing controller T-CON may be manufactured as an integrated circuit chip and mounted on the printed circuit board PCB. The timing controller T-CON may be connected to the pad PD through the printed circuit board PCB.

[0103] Although not shown, the display device DD may further include a voltage generating part for generating the first voltage and the second voltage. The voltage generating part may be connected to the pad PD connected to the first power line PL1 and the second power line PL2.

[0104] The timing controller T-CON may control operations of the scan driving part SDV, the data driving part DDV, and the light emitting driving part EDV. The timing controller T-CON may generate a scan control signal, a data control signal, and a light emitting control signal in response to a control signal received from the outside.

[0105] The scan control signal may be provided to the scan driving part SDV through the first control line CSL1. The light emitting control signal may be provided to the light emitting driving part EDV through the second control line CSL2. The data control signal may be provided to the data driving part DDV. The timing controller T-CON may receive an image signal from the outside, and may convert the data format of the image signal into an interface specification suitable for the data driving part DDV and provide the converted image signal to the data driving part DDV.

[0106] The scan driving part SDV may generate a plurality of scan signals in response to the scan control signal. 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.

[0107] The data driving part DDV may generate a plurality of data voltages corresponding to the image signal in response to the data control signal. The data voltages may be applied to the pixels PX through the data lines DL1 to DLn. The light emitting driving part EDV may generate a plurality of light emitting signals in response to the light emitting control signal. The light emitting signals may be applied to the pixels PX through the light emitting lines EL1 to ELm.

[0108] The pixel PX may receive a data voltage in response to a scan signal. The pixel PX may display an image by emitting light of brightness corresponding to the data voltage in response to a light emission signal. The light emission time of the pixel PX may be controlled by the light emission signal.

[0109] The black matrix BM may be disposed on the first portion AA1. The black matrix BM may be disposed on the non-display area NDA. When viewed on a plane, the black matrix BM may surround the display area DA.

[0110] The black matrix BM may include a black substance. The black matrix BM may absorb a portion of light emitted from the pixel PX. The black matrix BM may absorb a portion of light leaking toward the bezel of the display panel DP.

[0111] The black matrix BM may be manufactured by coating a resin. The black matrix BM may be manufactured by curing the resin coated on the display panel DP. The coating of the resin will be Figure 7a Detailed description in.

[0112] Figure 7a is a view for explaining resin coated on a display panel. Figure 7bIt is a view for explaining a nozzle for spraying resin.

[0113] For example, Figure 7a and Figure 7b It is a stereogram.

[0114] For example, Figure 7a and Figure 7b A part of the nozzle NOZ is omitted.

[0115] Exemplarily, the display panel DP is schematically shown as a rectangle.

[0116] Reference Figure 7a and Figure 7b , the stage STG may have a rectangular parallelepiped shape. The upper surface of the stage STG may have a rectangular shape parallel to a plane defined by the first direction DR1 and the second direction DR2. The upper surface of the stage STG may have a long side extending in the first direction DR1 and a short side extending in the second direction DR2. The display panel DP may be arranged in the coating groove DSP defined in the upper surface of the stage STG.

[0117] After the display panel DP is arranged on the stage STG, the nozzle NOZ may be adjacently arranged on the upper surface of the display panel DP. The nozzle NOZ may include a nozzle tip NZT. The nozzle NOZ may spray the resin RS toward the upper surface of the display panel DP. The resin RS may be sprayed from the nozzle tip NZT. The nozzle NOZ may spray the resin RS onto the upper surface of the display panel DP while moving along the frame of the display panel DP.

[0118] Although not shown, the resin RS may be cured after being coated along the border of the display panel DP. Exemplarily, the resin RS may be thermally cured or ultraviolet-cured. The cured resin RS may be defined as Figure 6 The black matrix BM shown in .

[0119] When the nozzle NOZ sprays the resin RS, the resin RS may adhere to the nozzle tip NZT. The resin RS adhered to the nozzle tip NZT may be defined as residual resin LR. In the case where the residual resin LR adheres to the nozzle tip NZT, when the resin RS is sprayed to the next display panel DP, the resin RS may not be sprayed uniformly. In addition, when the resin RS is sprayed from the nozzle tip NZT, the residual resin LR may be separated from the nozzle tip NZT. The residual resin LR may be coated on the upper surface of the display panel DP together with the resin RS. Therefore, the black matrix BM (refer to Figure 6 ) may be reduced and defects of the display panel DP may occur.

[0120] In order to prevent defects of the display panel DP, the residual resin LR on the surface of the nozzle tip NZT may be removed. The removal of the residual resin LR will be described below.

[0121] Figures 8a to 8e This is a view for explaining a nozzle cleaning method using the nozzle cleaning device of the present invention. Figures 9a to 9d It is a view for explaining a nozzle cleaning device according to a comparative example.

[0122] For example, Figure 8a This is a three-dimensional diagram of the nozzle cleaning device NCD. Figure 8b and Figure 8c This is a three-dimensional image of a part of the cleaning unit CPT that is enlarged. Figure 8d It is shown Figure 8c A view of the front surface of the cleaning section CPT shown in, Figure 8e This is a photograph of a nozzle cleaned by the nozzle cleaning device NCD of the present invention.

[0123] For example, Figure 9a is a perspective view of a portion of a cleaning unit CPT' according to a comparative example, Figure 9b yes Figure 9a A view of the front surface of the cleaning portion CPT' shown in FIG. Fig.9c is through Figure 9a The cleaning unit CPT' shown in the figure is a three-dimensional view of the cleaning nozzle, Figure 9d is through Figure 9a A photograph of the cleaning nozzle of the cleaning section CPT' is shown in FIG.

[0124] For ease of explanation, Figure 8b to Figure 8d , Figure 9a And the wiper WPR is omitted in FIG. 9B .

[0125] Figures 8a to 8d Nozzle cleaning device NCD and nozzle NOZ with Figure 1 Nozzle Cleaning Device NCD and Figure 7a and Figure 7b The nozzle NOZ is the same, so the description will be omitted or simplified.

[0126] Reference Figure 8a and Figure 8b The nozzle NOZ can be arranged adjacent to the nozzle cleaning device NCD. The nozzle tip NZT can be arranged adjacent to the cleaning portion CPT. Figure 8b As shown in , the nozzle tip NZT may be disposed between a plurality of pad portions SPD spaced apart from each other along the first direction DR1.

[0127] The nozzle tip NZT may include a first portion PT1 and a second portion PT2. The first portion PT1 may be defined as a portion of the nozzle tip NZT facing the inner surface of the pad portion SPD in the first direction DR1. The second portion PT2 may be defined as a portion of the nozzle tip NZT not facing the inner surface of the pad portion SPD.

[0128] Reference Figure 8a , Figure 8b , Figure 8c and Figure 8d When the nozzle tip NZT is disposed between the inner surfaces of the pad portion SPD, the driving portion DPT may move in the first direction DR1. The driving portion DPT may move in the first direction DR1 along the groove GR. The distance between the plurality of driving portions DPT in the first direction DR1 may decrease.

[0129] As the driving part DPT moves, the pad part SPD connected to the driving part DPT may move in the first direction DR1. A distance between the plurality of pad parts SPD in the first direction DR1 may decrease.

[0130] The pad portion SPD may move in the first direction DR1 and fix the nozzle tip NZT. The pad portion SPD may contact the first portion PT1 of the nozzle tip NZT. Specifically, as Figure 8d As shown in , the nozzle tip NZT may be arranged between a plurality of protrusions PRT adjacent to each other.

[0131] Since the protrusion PRT includes the foamed sponge, the shape of the protrusion PRT may be changed corresponding to the shape of the nozzle tip NZT. A portion of the protrusion PRT may be bent and contact the second portion PT2 of the nozzle tip NZT.

[0132] Although not shown, when the pad portion SPD moves, the distance between the plurality of wipers WPR arranged between the cleaning portions CPT may decrease. Figure 8a As shown in , the wiper WPR may contact the nozzle tip NZT. The shape of the wiper WPR may be modified corresponding to the shape of the inner surface of the pad portion SPD.

[0133] Reference Figures 9a to 9d According to the comparative example, the cleaning part CPT' may include a driving part DPT and a pad part SPD'. The pad part SPD' may not include a protrusion PRT (refer to Figure 8b ).

[0134] The nozzle tip NZT of the nozzle NOZ may be arranged between the pads SPD', and the pads SPD' may move in the first direction DR1 and fix the nozzle tip NZT. The pads SPD' may contact the nozzle tip NZT. The pads SPD' may contact the first portion PT1 of the nozzle tip NZT. The residual resin LR adhered to the first portion PT1 may be completely removed by the pads SPD'.

[0135] The second portion PT2 of the nozzle tip NZT may not contact the inner surface of the pad portion SPD'. Fig.9c and Figure 9d As shown in FIG. 1 , the residual resin LR adhered to the second portion PT2 may not be removed. Therefore, when the resin RS (refer to FIG. 1 ) is sprayed with the nozzle tip NZT without completely removing the residual resin LR, Figure 7a ) is applied to the display panel DP (refer to Figure 7a ), defects of the display panel DP may occur.

[0136] In addition, in order to remove the residual resin LR adhered to the second portion PT2, a separate process may be required. As the separate process is performed, the process time for removing the residual resin LR may become longer and the amount of the wiper WPR used may increase.

[0137] Reference Figure 8d and Figure 8e According to an embodiment of the present invention, the pad SPD of the nozzle cleaning device NCD may include a plurality of protrusions PRT, and the protrusions PRT may include foaming sponges. Therefore, when the nozzle tip NZT is fixed by the pad SPD, the shape of the protrusions PRT may change correspondingly to the shape of the nozzle tip NZT, and therefore, the first portion PT1 and the second portion PT2 of the nozzle tip NZT may be surrounded by the pad SPD. Thereafter, when the nozzle tip NZT moves in a direction away from the cleaning portion CPT, Figure 7b The residual resin LR shown in FIG. 1 may be removed from the nozzle tip NZT by the pad portion SPD. Therefore, defects of the display panel DP may be prevented.

[0138] Another effect of the nozzle cleaning device NCD of the present invention is that the number of operations of the nozzle cleaning device NCD can be reduced and the life of the nozzle cleaning device NCD can be increased by simultaneously removing the residual resin LR adhering to the first portion PT1 and the second portion PT2.

[0139] Furthermore, since the residual resin LR adhered to the first portion PT1 and the second portion PT2 is removed at the same time, the process time for removing the residual resin LR may be reduced, and the amount of the wiper WPR used for removing the residual resin LR may be saved.

[0140] For example, in Figure 8b to Figure 8d , the inner surface of the pad portion SPD has a serrated shape, but is not limited thereto and may have other shapes.

[0141] Reference Figure 8a , the supply part SPT and the receiving part RCP can rotate around a rotation axis parallel to the second direction DR2. When the supply part SPT rotates, the wiper WPR wound on the supply part SPT can be unwound from the supply part SPT. The wiper WPR connected to the receiving part RCP can be wound on the receiving part RCP when the receiving part RCP rotates. That is, the wiper WPR can move from the supply part SPT to the receiving part RCP.

[0142] When the wiper WPR moves, the wiper WPR may pass through the cleaning portion CPT. The wiper WPR passing through the cleaning portion CPT may wipe the outer surface of the nozzle tip NZT fixed to the cleaning portion CPT. Therefore, the residual resin LR may be removed.

[0143] The rotary support portion RPT may support the wiper WPR. The wiper WPR may move along the outer surface of the rotary support portion RPT. The cover portion CVP may prevent the wiper WPR from being separated from the rotary support portion RPT.

[0144] The above description is made with reference to the embodiments, but those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the scope of the concept and field of the present invention recorded in the attached claims. In addition, the embodiments disclosed in the present invention are not intended to limit the technical concept of the present invention, and should be interpreted as all technical concepts within the scope of the attached claims and their equivalents are included in the scope of the rights of the present invention.

Claims

1. A nozzle cleaning device, It is characterized in that include: Main body; as well as a cleaning portion, arranged on a side surface of the main body portion, Wherein, the cleaning unit comprises: a plurality of driving portions arranged in grooves defined in the side surface of the main body portion and arranged in a first direction; and a plurality of pad portions arranged on inner surfaces of the plurality of driving portions facing each other and including a plurality of protrusions extending in the first direction, and The protrusions are arranged on inner surfaces of the plurality of pads facing each other.

2. The nozzle cleaning device according to claim 1, It is characterized in that The protrusion has a sawtooth shape.

3. The nozzle cleaning device according to claim 1, It is characterized in that The protrusions of the pad portion have shapes that mesh with each other.

4. The nozzle cleaning device according to claim 1, It is characterized in that The protrusion has a shape corresponding to an outer surface of the nozzle.

5. The nozzle cleaning device according to claim 4, It is characterized in that The cushion portion includes a foam sponge.

6. The nozzle cleaning device according to claim 1, It is characterized in that A portion of the cleaning portion is bent at a predetermined angle with respect to a straight line perpendicular to the side surface of the body portion.

7. The nozzle cleaning device according to claim 1, It is characterized in that The driving portion reciprocates along the groove in the first direction.

8. The nozzle cleaning device according to claim 1, It is characterized in that Also includes: a supply portion disposed on the side surface of the main body portion, and when viewed in a second direction intersecting the first direction, the supply portion is adjacent to two sides of the cleaning portion that are opposite to each other in the first direction; a receiving portion, which is arranged below the cleaning portion when viewed in the second direction; as well as A wiper is connected to the supply portion and the accommodation portion.

9. The nozzle cleaning device according to claim 8, It is characterized in that The supply portion and the receiving portion rotate around a rotation axis parallel to the second direction, and When the supply portion and the receiving portion rotate, the wiper is unwound from the supply portion and wound around the receiving portion.

10. The nozzle cleaning device according to claim 9, It is characterized in that The wiper passes between the plurality of pad portions and is wrapped around the accommodation portion.

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