Display Panel

Abstract

A display panel is disclosed. The display panel of one embodiment may include a base layer, a circuit layer, a light-emitting element, a pixel defining film, an encapsulation layer, and a first dam. The base layer may include a display area and a non-display area adjacent to the display area. The encapsulation layer may include a first inorganic film, an organic film, and a second inorganic film. The first dam may be arranged between the first inorganic film and the second inorganic film and the outer contour of the organic film. The first dam may overlap with the non-display area and the pixel defining film in a plane. Therefore, the area of ​​the non-display area of ​​the display panel of one embodiment may be reduced.

Description

Technical Field

[0001] The present invention relates to a display panel, and more particularly to a display panel including a dam. Background Art

[0002] A display device may be divided into a display area displaying an image and a non-display area around the display area. Recently, various studies are being conducted to increase the display area displaying an image by reducing the magnitude of the non-display area.

[0003] In addition, in the display device, the organic light-emitting element of the organic light-emitting display device may include organic matter. In order to protect the organic matter that is susceptible to oxygen and moisture, various technologies for sealing the organic light-emitting element are being developed. Among them, the encapsulation technology is a technology that blocks the penetration path of air, moisture, etc. by arranging an encapsulation layer on the organic light-emitting element. The encapsulation layer may include a structure in which an inorganic film containing inorganic matter and an organic film containing organic matter are alternately stacked. However, in the process of forming the organic film, if the organic matter overflows, air and moisture may penetrate into the exposed organic layer. Summary of the invention

[0004] An object of the present invention is to provide a display panel with a reduced non-display area.

[0005] A display panel according to an embodiment of the present invention may include a base layer, a circuit layer, a light-emitting element, a pixel defining film, an encapsulation layer, and a first dam. A display area and a non-display area adjacent to the display area may be defined in the base layer. The circuit layer may be arranged on the base layer. The circuit layer may include a pixel circuit layer overlapping the display area and a driving circuit layer overlapping the non-display area and including a power supply electrode and a driving signal line. The light-emitting element may include a pixel electrode arranged on the pixel circuit layer and electrically connected to the pixel circuit layer, a light-emitting layer arranged on the pixel electrode, and a common electrode arranged on the light-emitting layer and extending from the display area to the non-display area. The pixel defining film may be arranged on the pixel electrode to expose at least a portion of the pixel electrode. The encapsulation layer is arranged on the light-emitting element and may include a first inorganic film, an organic film arranged on the first inorganic film, and a second inorganic film arranged on the organic film. The first dam may be arranged between the first inorganic film and the second inorganic film and the outer contour of the organic film. The first dam may overlap the non-display area and the pixel defining film in a plane.

[0006] The first dam may be disposed directly between the first inorganic film and the second inorganic film.

[0007] The display panel may further include a connection electrode. The connection electrode may electrically connect the power electrode and the common electrode and define an electrode hole. The first dam may overlap the electrode hole.

[0008] The display panel may further include a second dam. The second dam may be spaced apart from the first dam and disposed between the first inorganic film and the second inorganic film and at an outer contour of the organic film.

[0009] A plurality of the electrode holes may be defined in the connection electrode, and the second dam may overlap at least a portion of the plurality of the electrode holes.

[0010] The second dam may not overlap with the pixel defining film in a plane, and may overlap with at least a portion of the power electrode in a plane.

[0011] The pixel defining film may fill the electrode hole.

[0012] The connection electrode may be arranged on the same layer as the pixel electrode.

[0013] The first dam may include a polymer resin, and the polymer resin may include a fluorine-based or silyl-based hydrophobic group.

[0014] The polymer resin may include a first repeating unit represented by Chemical Formula 1 below.

[0015] [Chemical formula 1]

[0016]

[0017] In the chemical formula 1, R 1 To R 3 Each of them may independently be a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. 1 It can be an integer greater than or equal to 0 and less than or equal to 5. 1 It may be an integer of 1 to 100 both inclusive.

[0018] The first repeating unit may account for 30 wt % or more and 70 wt % or less based on the total molar amount of the polymer resin.

[0019] The polymer resin may further include at least one of acrylic repeating units, imide repeating units, olefin repeating units, phenol repeating units, siloxane repeating units, polyol repeating units, ether repeating units, or thiol repeating units. The repeating units may include substituted or unsubstituted aromatic groups having 6 or more and 20 or less ring carbon atoms.

[0020] The acrylic repeating unit may be represented by the following Chemical Formula 2-1, the imide repeating unit may be represented by the following Chemical Formula 2-2, and the olefin repeating unit may be represented by the following Chemical Formula 2-3.

[0021]

[0022] In the chemical formula 2-1 to the chemical formula 2-3, R 4 To R 11 Each of them may independently be a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. 2 It can be an integer greater than or equal to 0 and less than or equal to 5. 2 to n 4 Each independently may be an integer of 1 to 100.

[0023] The first inorganic film may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. The organic film may include an organic polymer including a hydrophilic repeating unit.

[0024] A display panel according to another embodiment of the present invention may include a base layer, a circuit layer, a light-emitting element, an encapsulation layer, and a first dam. The base layer may be defined with a display area and a non-display area adjacent to the display area. The circuit layer may be arranged on the base layer. The light-emitting element may be arranged on the circuit layer. The encapsulation layer may be arranged on the light-emitting element. The encapsulation layer may include a first inorganic film, an organic film arranged on the first inorganic film, and a second inorganic film arranged on the organic film. The first dam may be directly arranged between the first inorganic film and the second inorganic film, and may overlap with the non-display area. The first dam may include a polymer resin containing a first repeating unit represented by the following chemical formula 1.

[0025] [Chemical formula 1]

[0026]

[0027] In the chemical formula 1, R 1 To R 3 Each of them may independently be a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. 1 It can be an integer greater than or equal to 0 and less than or equal to 5. 1 It may be an integer of 1 to 100 both inclusive.

[0028] The polymer resin may further include at least one of acrylic repeating units, imide repeating units, olefin repeating units, phenol repeating units, siloxane repeating units, polyol repeating units, ether repeating units, or thiol repeating units. The repeating units may include substituted or unsubstituted aromatic groups having 6 or more and 20 or less ring carbon atoms.

[0029] The circuit layer may include a pixel circuit layer and a driving circuit layer. The pixel circuit layer may overlap with the display area. The driving circuit layer may overlap with the non-display area and include a power supply electrode, and provide a driving signal to the pixel circuit layer. The light-emitting element may be arranged on the pixel circuit layer. The light-emitting element may include the pixel electrode, a light-emitting layer arranged on the pixel electrode, and a common electrode arranged on the light-emitting layer. The common electrode may extend from the display area to the non-display area. The display panel may further include a pixel defining film arranged on the pixel electrode to expose at least a portion of the pixel electrode. The first dam may overlap with the non-display area and the pixel defining film in a plane.

[0030] The display panel may further include a connection electrode. The connection electrode may electrically connect the power electrode and the common electrode and define a plurality of electrode holes. The first dam may overlap at least a portion of the plurality of electrode holes.

[0031] The display panel may further include a second dam disposed on the same layer as the first dam. The second dam may overlap the pixel defining film in a plane.

[0032] The second dam may not overlap with the pixel defining film in a plane.

[0033] According to an embodiment of the present invention, a display panel having a reduced non-display area can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a perspective view of a display device according to an embodiment of the present invention.

[0035] Figure 2 is along Figure 1 A schematic cross-sectional view of the display device taken along line II'.

[0036] Figure 3 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.

[0037] Figure 4 is a plan view of a display panel according to an embodiment of the present invention.

[0038] Figure 5 It is enlarged to show Figure 3 A cross-sectional view of the display panel in the AA region.

[0039] Figure 6 is a cross-sectional view of a display panel according to an embodiment of the present invention.

[0040] Figure 7 is a cross-sectional view of a display panel according to an embodiment of the present invention.

[0041] Figure 8 It is a graph showing the evaluation results of the polymer resins of Example 1 and Comparative Example 1.

[0042] Explanation of symbols

[0043] DD: Display device DP: Display panel

[0044] TFE: encapsulation layer DM1: first dam

[0045] DM2: Second dam PDL: Pixel defining film

[0046] CNE: Connecting electrode CNE-H: Electrode hole DETAILED DESCRIPTION

[0047] In this specification, when a certain component (or region, layer, part, etc.) is mentioned as being "on" another component, "connected to" another component, or "combined with" another component, it means that it can be directly arranged on / connected / combined with another component, or a third component can be arranged between them.

[0048] Furthermore, in the present specification, when mentioning being arranged "above", it includes not only a case of being arranged at an upper portion but also a case of being arranged at a lower portion.

[0049] The same reference numerals refer to the same components. In addition, in order to effectively explain the technical content, the thickness, ratio and size of the components are exaggerated in the drawings.

[0050] “And / or” includes all combinations of more than one that can be defined for the related components.

[0051] The terms first, second, etc. may be used to describe a variety of constituent elements, but the constituent elements should not be defined by the terms. The terms are only used to distinguish one constituent element from another constituent element. For example, without departing from the scope of the present invention, the first constituent element may be named as the second constituent element, and similarly, the second constituent element may be named as the first constituent element. Singular expressions include plural expressions as long as they do not clearly indicate different meanings in the context.

[0052] Furthermore, terms such as “below”, “lower side”, “above”, and “upper side” are used to describe the correlation between the components shown in the drawings. These terms are described as relative concepts based on the directions shown in the drawings.

[0053] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. Furthermore, terms that are the same as those defined in commonly used dictionaries should be interpreted as having the same meanings as those in the context of the relevant technology, and as long as they are not interpreted as ideal or excessively formal meanings, they should be interpreted as the meanings explicitly defined in this specification.

[0054] The terms "including" or "having" should be understood as intending to specify the existence of the features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification, rather than excluding the existence or additional possibility of one or more other features or numbers, steps, operations, constituent elements, parts or combinations thereof in advance.

[0055] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0056] Figure 1 is a perspective view of a display device according to an embodiment of the present invention.

[0057] Figure 1 In the figure, a portable terminal in which the edges of the four faces are all provided as curved surfaces is exemplarily shown as a display device DD. However, the embodiments are not limited thereto, and the present invention can be applied to various display devices DD such as flat-panel display devices, curved display devices, bent display devices, rollable display devices, foldable display devices, and stretchable display devices. Moreover, although not shown separately, the display device DD according to the present invention can be used not only for large electronic devices such as televisions or external billboards, but also for small and medium-sized electronic devices such as personal computers, notebook computers, personal digital terminals, car navigation units, game consoles, portable electronic devices, watch-type electronic devices, and cameras. These are shown only as embodiments, and it is obvious that they can be applied to other electronic devices as long as they do not deviate from the concept of the present invention.

[0058] The display device DD includes a plurality of areas divided on a display surface. The display device DD may include: a display area DD-DA displaying an image IM; and a non-display area DD-NDA adjacent to the display area DD-DA. Figure 1A clock widget is shown as an example of the image IM in FIG. The non-display area DD-NDA may surround the display area DD-DA.

[0059] In this embodiment, the front (or top) and back (or bottom) of each component are defined based on the direction in which the image IM is displayed. The front and back face each other in the third direction DR3, and the normal direction of each of the front and back faces the third direction DR3. In addition, the directions pointed by the first direction DR1 to the third direction DR3 can be transformed into other directions as a relative concept. Hereinafter, the first direction to the third direction are referred to as the directions pointed by the first direction DR1 to the third direction DR3, respectively, with reference to the same figure marks. In this specification, "on a plane" can refer to the situation when observing in the third direction DR3, that is, in the normal direction.

[0060] Figure 2 is along Figure 1 A schematic cross-sectional view of the display device taken along line II'.

[0061] like Figure 2 As shown, the display device DD may include: a display module DM; and a window WM arranged on the display module DM. The display module DM may include a protection film PM, a display panel DP, and an input sensing layer TSL.

[0062] The protective film PM protects the display module DM. The protective film PM prevents external moisture from penetrating into the display module DM and absorbs external impact.

[0063] The protective film PM may include a plastic resin. However, the material constituting the protective film PM is not limited to the plastic resin and may include an organic / inorganic composite material. The protective film PM may include a porous organic layer and an inorganic substance filling the pores of the organic layer. The protective film PM may also include a functional layer formed on the plastic resin. The functional layer may include a resin layer. The functional layer may be formed by coating. In one embodiment of the present invention, the protective film PM may also be omitted.

[0064] The display panel DP may be disposed on the protective film PM. The display panel DP of an embodiment may include a first dam DM1 ( Figure 5 ). The display panel DP will be described in detail later.

[0065] An input sensing layer TSL may be disposed on the display panel DP. The input sensing layer TSL according to an embodiment of the present invention may sense a capacitance change caused by an external object to sense an external input.

[0066] The input sensing layer TSL can be directly arranged on the packaging layer TFE ( Figure 3 That is, on the input sensing layer TSL and the encapsulation layer TFE ( Figure 3 ) may not have an additional adhesive layer disposed therebetween. However, the embodiment is not limited thereto, and may also be disposed between the encapsulation layer TFE ( Figure 3 ) is disposed on the protective layer, and the input sensing layer TSL is directly disposed on the protective layer. The protective layer may be an inorganic layer or an organic layer. The inorganic layer may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. The organic layer may include a polymer. However, this is only exemplary and is not limited thereto. Although the case where the protective layer is an independent structure is described, the protective layer may be included in the encapsulation layer TFE ( Figure 3 ) composition.

[0067] A window WM may be arranged on the display module DM. The window WM may protect the display module DM from external impact and may provide an input surface for the user. The window WM may include a plastic film. The window WM may have a multilayer structure. The window WM may have a multilayer structure selected from a glass substrate, a plastic film, and a plastic substrate. The window WM may also include a frame pattern. The multilayer structure may be formed by a continuous process or a bonding process using a bonding layer.

[0068] Although not shown, the components of the display device DD may be bonded to each other by a bonding member, for example, by an optically transparent bonding member.

[0069] Figure 3 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.

[0070] Reference Figure 3 , the display panel DP includes a base layer SUB and a circuit layer DP-CL, a light emitting element layer DP-ED and an encapsulation layer TFE arranged on the base layer SUB.

[0071] The display panel DP includes a display area DA and a non-display area NDA on a plane. The display area DA and the non-display area NDA of the display panel DP are respectively connected to the display device DD ( Figure 1 ) display area DD-DA( Figure 1 ) and non-display area DD-NDA( Figure 1 The display area DA and the non-display area NDA of the display panel DP do not necessarily correspond to the display device DD ( Figure 1 ) display area DD-DA( Figure 1 ) and non-display area DD-NDA( Figure 1 ) is the same and may be changed according to the structure and design of the display panel DP.

[0072] The base layer SUB may include at least one plastic film. The base layer SUB as a flexible substrate may include a plastic substrate, a glass substrate, a metal substrate or an organic / inorganic composite material substrate, etc. The plastic substrate may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin and perylene resin.

[0073] The circuit layer DP-CL may be arranged on the base layer SUB. The circuit layer DP-CL may include a plurality of insulating layers, a plurality of conductive layers, and a semiconductor layer. The plurality of conductive layers of the circuit layer DP-CL may constitute a plurality of signal lines or a control circuit of a pixel. The circuit layer DP-CL may include a pixel circuit layer DP-PCL arranged in the display area DD-DA and a driving circuit layer DP-DCL arranged in the non-display area DD-NDA.

[0074] The light emitting element layer DP-ED may be arranged on the circuit layer DP-CL. The light emitting element layer DP-ED includes a light emitting element ED ( Figure 5 ).

[0075] The encapsulation layer TFE may be arranged on the circuit layer DP-CL and the light emitting element layer DP-ED. The encapsulation layer TFE may seal the circuit layer DP-CL and the light emitting element layer DP-ED. The encapsulation layer TFE may include a plurality of inorganic films and at least one organic film arranged therebetween. The inorganic film may protect the light emitting element layer DP-ED from moisture / oxygen, and the organic film may protect the light emitting element layer DP-ED from foreign matter such as dust particles. A detailed description of the encapsulation layer TFE will be described later.

[0076] Figure 4 is a plan view of a display panel according to an embodiment of the present invention.

[0077] Reference Figure 4 , the display panel DP may include a plurality of pixels PX. A region where the plurality of pixels PX are arranged may be defined as a display region DA. In the present embodiment, a non-display region NDA may be defined along the periphery of the display region DA.

[0078] The display panel DP may include gate lines GL, data lines DL, light emitting lines EL, control signal lines SL-D, initialization voltage lines SL-Vint, voltage lines SL-VDD, power electrodes E-VSS, and a pad PD.

[0079] The gate lines GL are connected to corresponding pixels PX in a plurality of pixels PX, respectively, and the data lines DL are connected to corresponding pixels PX in a plurality of pixels PX, respectively. The light-emitting lines EL may be arranged side by side with corresponding gate lines GL in the gate lines GL, respectively. The control signal line SL-D may provide a control signal to the gate drive circuit GDC. The initialization voltage line SL-Vint may provide an initialization voltage to a plurality of pixels PX. The voltage line SL-VDD may be connected to a plurality of pixels PX, and provide a first voltage to a plurality of pixels PX. The voltage line SL-VDD may include a plurality of lines extending in a first direction DR1 and a plurality of lines extending in a second direction DR2. The power supply electrode E-VSS may be arranged in the non-display area NDA, and may be arranged to surround three sides of the display area DA. The power supply electrode E-VSS may provide a common voltage (e.g., a second voltage) to a plurality of pixels PX. The common voltage may be a voltage lower than the level of the first voltage.

[0080] A gate driving circuit GDC connected with the gate line GL and the light emitting line EL may be disposed at one side of the non-display area NDA.

[0081] The pad portion PD may be connected to ends of the data line DL, the control signal line SL-D, the initialization voltage line SL-Vint, and the voltage line SL-VDD.

[0082] Although Figure 4 , the first dam DM1 surrounds three sides of the display area DA, but the embodiment is not limited thereto. The first dam DM1 may be arranged to surround at least one side of the display area DA, or may be arranged to surround all four sides of the display area DA. The first dam DM1 may be arranged to overlap with the non-display area NDA on a plane. The first dam DM1 may be arranged on the gate drive circuit GDC to overlap with the gate drive circuit GDC.

[0083] Figure 5 It is enlarged to show Figure 3 A cross-sectional view of the display panel in the AA region.

[0084] Reference Figure 5 , a buffer layer BFL may be arranged on the base layer SUB. The buffer layer BFL improves the bonding force between the base layer SUB and the conductive pattern or the semiconductor pattern. The buffer layer BFL may include an inorganic layer. Although not shown separately, a barrier layer for preventing foreign matter from flowing in may also be arranged on the base layer SUB. The buffer layer BFL and the barrier layer may be selectively arranged or omitted.

[0085] A circuit layer DP-CL ( Figure 3 ). Reference Figure 5 , circuit layer DP-CL( Figure 3) may include multiple insulating layers, multiple conductive layers and semiconductor layers. Circuit layer DP-CL ( Figure 3 ) can form a signal line or a pixel control circuit. Circuit layer DP-CL ( Figure 3 ) may include a pixel circuit layer DP-PCL ( Figure 3 ) and a driving circuit layer DP-DCL ( Figure 3 ).

[0086] Driving circuit layer DP-DCL ( Figure 3 ) may include a gate drive circuit GDC and a power supply electrode E-VSS. The gate drive circuit GDC may include a plurality of drive signal lines SL and a first transistor TR1. The plurality of drive signal lines SL may include a first clock signal line CL1, a second clock signal line CL2, a third clock signal line CL3, a fourth clock signal line CL4, a first voltage line VL1, a second voltage line VH1, a third voltage line VL2, a fourth voltage line VH2, a first start signal line EF1, and a second start signal line EF2.

[0087] Pixel circuit layer DP-PCL ( Figure 3 ) may include multiple transistors. Figure 5 , a second transistor TR2 among a plurality of transistors is exemplarily shown. The second transistor TR2 may include a semiconductor pattern OP, a control electrode GE, an input electrode IE, and an output electrode OE. A semiconductor pattern OP may be arranged on the buffer layer BFL. The semiconductor pattern OP may include at least one of amorphous silicon, polycrystalline silicon, and metal oxide.

[0088] A first insulating layer 10 may be disposed on the semiconductor pattern OP. Figure 5 FIG. 4 exemplarily shows a layer form in which the first insulating layer 10 is provided to cover the semiconductor pattern OP, but the embodiment is not limited thereto.

[0089] The first insulating layer 10 may include a plurality of inorganic thin films, which may include a silicon nitride layer, a silicon oxynitride layer, and a silicon oxide layer.

[0090] A control electrode GE of the second transistor TR2 may be disposed on the first insulating layer 10. The control electrode GE may be connected to the gate line GL ( Figure 4 ) is manufactured using the same photolithography process.

[0091] A second insulating layer 20 covering the control electrode GE may be disposed on the first insulating layer 10. The second insulating layer 20 may provide a flat upper surface. The second insulating layer 20 may include an organic substance and / or an inorganic substance.

[0092] An input electrode IE and an output electrode OE of the second transistor TR2 may be disposed on the second insulating layer 20. The input electrode IE and the output electrode OE may be connected to the semiconductor pattern OP through first and second through holes CH1 and CH2 penetrating the first and second insulating layers 10 and 20, respectively.

[0093] Furthermore, in another embodiment of the present invention, the transistors TR1 and / or TR2 may be transformed into a bottom-gate structure for implementation.

[0094] A power electrode E-VSS and a plurality of driving signal lines SL may be arranged on the second insulating layer 20. Specifically, a power electrode E-VSS and a first clock signal line CL1, a second clock signal line CL2, a third clock signal line CL3, a fourth clock signal line CL4, a first voltage line VL1, a second voltage line VH1, a third voltage line VL2, a fourth voltage line VH2, a first start signal line EF1, and a second start signal line EF2 may be arranged on the second insulating layer 20.

[0095] A third insulating layer 30 covering the input electrode IE, the input electrode OE, and the plurality of driving signal lines SL may be disposed on the second insulating layer 20. The third insulating layer 30 may cover a portion of the power electrode E-VSS. The third insulating layer 30 includes an organic layer and / or an inorganic layer. In particular, the third insulating layer 30 may include an organic substance in order to provide a flat surface.

[0096] One of the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30 may be omitted according to the circuit structure of the pixel. Each of the second insulating layer 20 and the third insulating layer 30 may be defined as an interlayer insulating layer. The interlayer insulating layer is disposed between a conductive pattern disposed at a lower portion and a conductive pattern disposed at an upper portion with the interlayer insulating layer as a reference, thereby insulating the conductive pattern.

[0097] A pixel definition layer PDL and a light emitting element ED may be disposed on the third insulating layer 30. A light emitting element ED may be disposed in the display area DA. The light emitting element ED may include a pixel electrode PE, a light emitting layer EML, and a common electrode CE stacked in sequence.

[0098] A pixel electrode PE may be disposed on the third insulating layer 30 . The pixel electrode PE may be electrically connected to the pixel circuit layer DP-PCL. For example, the pixel electrode PE may be connected to the output electrode OE through a third through hole CH3 penetrating the third insulating layer 30 .

[0099] The pixel defining film PDL may be disposed on the third insulating layer 30. The pixel defining film PDL may cover at least a portion of the pixel electrode PE and expose another portion of the pixel electrode PE. Although not shown, the pixel defining film PDL may be disposed between a plurality of light emitting elements ED to prevent mixing of light emitted from each light emitting element ED. As shown in the figure, the pixel defining film PDL may also be disposed in a portion of the non-display area NDA. The pixel defining film PDL may insulate the connection electrode CNE to be described later.

[0100] The light emitting layer EML may be disposed on the pixel electrode PE. The light emitting layer EML may include an organic light emitting substance. However, the embodiment is not limited thereto, and the light emitting layer EML may include an inorganic substance as a light emitting material. For example, a quantum dot may be included as a light emitting material.

[0101] The common electrode CE may be arranged on the light emitting layer EML. The common electrode CE may be electrically connected to the power electrode E-VSS. The common electrode CE may receive a power supply voltage from the power electrode E-VSS. The common electrode CE may extend from the display area DA to the non-display area NDA. The common electrode CE may be arranged between the input sensing line and a plurality of clock signal lines CL1, CL2, CL3, CL4 (hereinafter referred to as CL). The portion of the common electrode CE extending to the non-display area NDA may be arranged on the pixel defining film PDL.

[0102] Although not shown, at least one of a hole injection layer (not shown), a hole transport layer (not shown), and an electron blocking layer (not shown) may be disposed between the pixel electrode PE and the light emitting layer EML. At least one of an electron injection layer (not shown), an electron transport layer (not shown), and a hole blocking layer (not shown) may be disposed between the light emitting layer EML and the common electrode CE. Holes and electrons injected from the pixel electrode PE and the common electrode CE of the light emitting element ED are combined to form excitons, which can emit light when they fall to the ground state.

[0103] The common electrode CE and the power electrode E-VSS may be electrically connected to each other through the connecting electrode CNE. The connecting electrode CNE may be arranged to overlap with the non-display area NDA. The connecting electrode CNE may be arranged not to overlap with the display area DA. The connecting electrode CNE may be arranged directly on the power electrode E-VSS. The connecting electrode CNE may be arranged to extend toward the display area DA between the third insulating layer 30 and the pixel defining film PDL. A portion of the connecting electrode CNE may be arranged on the power electrode E-VSS, and another portion of the connecting electrode CNE may be arranged on the same layer as the pixel electrode PE. For example, a portion of the connecting electrode CNE and the pixel electrode PE may be arranged on the third insulating layer 30. The connecting electrode CNE and the pixel electrode PE may be deposited in the same process and may be formed using the same material.

[0104] At least one electrode hole CNE-H may be defined in the connection electrode CNE. For example, at least one electrode hole CNE-H may be defined in the connection electrode CNE in a portion overlapping with the pixel definition film PDL. The electrode hole CNE-H may be provided in a plurality. The electrode hole CNE-H may be filled with an insulating material. Although the embodiment is not limited thereto, the electrode hole CNE-H may not be filled with a conductive material. For example, the electrode hole CNE-H may be filled with a pixel definition film PDL.

[0105] In one embodiment, the gas generated in the process can be discharged to the outside through the electrode hole CNE-H. For example, hydrogen may be generated in the first to third insulating layers 10, 20, and 30 during the process. If the hydrogen cannot be discharged, the hydrogen may be absorbed by the semiconductor layer of the first transistor TR1. Since the hydrogen acts as a carrier, it may cause a defect in the first transistor TR1. However, in one embodiment, the hydrogen can be discharged to the outside through the electrode hole CNE-H that acts as an out gassing.

[0106] The connection electrode CNE can be provided with a common voltage. Therefore, the connection electrode CNE can block the connection between the clock signal line CL and the input sensing layer TSL ( Figure 3 ) between the two.

[0107] An encapsulation layer TFE may be disposed on the light emitting element ED. The encapsulation layer TFE may be directly disposed on the light emitting element ED to seal the light emitting element ED. Figure 5 It is shown that the encapsulation layer TFE is directly arranged on the common electrode CE. However, the embodiment is not limited thereto. For example, the light emitting element ED may further include a cap layer (not shown) arranged on the common electrode CE. The cap layer (not shown) may be an optical functional layer for adjusting the refractive index of light emitted from the light emitting layer EML or adjusting the resonance distance of light. In this case, the encapsulation layer TFE may be directly arranged on the cap layer (not shown).

[0108] The encapsulation layer TFE may be a multi-layer structure including a first inorganic film IOL1, an organic film OL and a second inorganic film IOL2. The first inorganic film IOL1, the organic film OL and the second inorganic film IOL2 may be a single-layer structure or a multi-layer structure respectively and independently.

[0109] The first inorganic film IOL1 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. The first inorganic film IOL1 may include a hydrophilic group of at least one of silicon oxide, silicon nitride, and silicon oxynitride.

[0110] The organic film OL may include an organic polymer including a hydrophilic repeating unit, such as an acrylic resin, an epoxy resin, or an imide organic polymer.

[0111] The first dam DM1 may be disposed between the first inorganic film IOL1 and the second inorganic film IOL2. The first dam DM1 may be disposed directly between the first inorganic film IOL1 and the second inorganic film IOL2. The first dam DM1 may be disposed at an outer profile of the organic film OL.

[0112] The first dam DM1 may overlap the non-display area NDA. The first dam DM1 may be arranged to overlap the pixel defining film PDL on a plane. The first dam DM1 may be arranged to overlap the electrode hole CNE-H. The first dam DM1 may be arranged to overlap at least a portion of the plurality of electrode holes CNE-H.

[0113] The first dam DM1 may include a polymer resin. The polymer resin may be formed by polymerizing a first compound and a second compound. The first compound may be an acrylic compound including a fluorine (F) group or a silyl group. The first compound may be a monomer, an oligomer, or a polymer.

[0114] For example, the first dam DM1 may include a first repeating unit represented by Chemical Formula 1 below.

[0115] [Chemical formula 1]

[0116]

[0117] In the chemical formula 1,

[0118] R 1 To R 3Each of them independently can be a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. 1 To R 3 They may each independently be a hydrogen atom or a methyl group.

[0119] m 1 It can be an integer greater than or equal to 0 and less than or equal to 5. 1 It may be an integer greater than or equal to 1 and less than or equal to 100. For example, m 1 It can be an integer greater than or equal to 0 and less than or equal to 3. 1 When CF is 0, 3 It is connected to the oxygen atom by direct linkage.

[0120] Chemical Formula 1 can be represented by the following Chemical Formula 1-1.

[0121] [Chemical formula 1-1]

[0122]

[0123] In chemical formula 1-1, m 1 and n 1 may be the same as defined in Chemical Formula 1.

[0124] The second compound may be a polymer. The second compound may be a binder polymer. The second compound may be at least one of an acrylic compound, an imide compound, an olefin compound, a phenol compound, a siloxane compound, an ether compound, and a thiol compound. The acrylic compound may be an epoxy acrylic compound. The olefin compound may be a styrene compound or a cardo compound. The imide compound may be a maleimide compound. Therefore, the first dam DM1 may include a polymer resin including at least one of an acrylic repeating unit, an imide repeating unit, an olefin repeating unit, a phenol repeating unit, a siloxane repeating unit, a polyol repeating unit, an ether repeating unit, and a thiol repeating unit.

[0125] In one embodiment, when polymerizing a polymer resin, the first compound may be included in an amount of about 0.1 wt% to about 10 wt% or about 1 wt% to 10 wt% based on the molar number of all molecules participating in the polymerization of the polymer resin. When the content of the first compound is less than about 0.1 wt%, the organic monomer may overflow due to the weakening of the hydrophobicity of the first dam DM1. When the content of the first compound exceeds about 10 wt%, the glass transition temperature T g The first dam DM1 may be difficult to form because the thickness of the first dam DM1 decreases. In this specification, wt% means weight%.

[0126] The second compound may include a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. The substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms may be a substituted or unsubstituted phenyl group.

[0127] For example, the first dam DM1 may include at least one of the repeating units represented by Chemical Formula 2-1 to Chemical Formula 2-3.

[0128]

[0129] Chemical formula 2-1 exemplarily describes an acrylic acid-based repeating unit, Chemical formula 2-2 exemplarily describes an imide-based repeating unit, and Chemical formula 2-3 exemplarily describes an olefin-based repeating unit.

[0130] In Chemical Formula 2-1 to Chemical Formula 2-3, R 4 To R 11 Each of them independently can be a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms. 4 To R 11 They may each independently be a hydrogen atom or a methyl group.

[0131] m 2 It can be an integer greater than or equal to 0 and less than or equal to 5. 2 to n 4 Each of them can independently be an integer of 1 to 100. For example, m 2 Can be 1.

[0132] Chemical Formula 2-1 to Chemical Formula 2-3 can be represented by Chemical Formula 2-1-1 to Chemical Formula 2-3-1, respectively.

[0133]

[0134] In Chemical Formula 2-1-1 to Chemical Formula 2-3-1, m 2and n 2 to n 4 The same as defined in Chemical Formula 2-1 to Chemical Formula 2-3 may be used.

[0135] In one embodiment, when polymerizing a polymer resin to form the first dam DM1, the glass transition temperature of the polymer resin can be adjusted by adjusting the content of the second compound including a substituted or unsubstituted aromatic group having 6 or more and 20 or less ring carbon atoms. The content of the second compound including the aromatic group can be 30 wt % or more and 70 wt % or less based on the total weight of the first dam DM1. When the content of the second compound satisfies the above range, the first dam DM1 having a suitable glass transition temperature can be formed.

[0136] The second compound may further include at least one of a developer, a photocuring agent, and a thermosetting agent. For example, the second compound may further include a developer and a photocuring agent, or may further include a developer and a thermosetting agent, or may include a developer, a photocuring agent, and a thermosetting agent. Although the developer, the photocuring agent, and the thermosetting agent are not particularly limited, for example, the developer may be a compound containing a carboxyl group, the photocuring agent may be a compound containing an ester group, and the thermosetting agent may be an epoxy acrylic compound.

[0137] For example, the developer may be represented by the following Chemical Formula 3-1, the photocuring agent may be represented by the following Chemical Formula 3-2, and the thermal curing agent may be represented by the following Chemical Formula 3-3.

[0138]

[0139] In Chemical Formula 3-1 to Chemical Formula 3-3, n 5 to n 7 It may be an integer of 1 to 100 both inclusive.

[0140] The content of the developer, the photocuring agent and / or the thermal curing agent may be greater than or equal to 30 wt % and less than or equal to 70 wt % based on the entire weight of the first dam DM1 .

[0141] The first dam DM1 may include a polymer resin formed by photocuring. For example, the first dam DM1 may be formed by photocuring a group including a first compound, a second compound, and a photoinitiator. Although the type of the photoinitiator is not particularly limited, it may include one of an oxime photoinitiator, an acetophenone photoinitiator, an imidazole photoinitiator, and a sulfonium salt photoinitiator.

[0142] The first dam DM1 may be formed from a group including a first compound, a second compound, a photoinitiator, a cross-linking agent, and a surfactant. The first dam DM1 may be formed from a group including a first compound, a second compound, a monomer, a photoinitiator, and a surfactant.

[0143] The surfactant may be a fluorine-based, silane-based, phenol-based or polyolefin elastomer (POE)-based surfactant. The content of the surfactant may be 0.1 wt % or more and 10 wt % or less based on the total weight of the first dam DM1.

[0144] As the fluorine-based surfactant, F-470, F-471, F-475, F-482, or F-489 sold by Dainippon Ink & Chemicals Co., Ltd. can be used.

[0145] The silyl-based surfactant may be at least one of (3-glycidoxypropyl)trimethoxysilane, (3-glycidoxypropyl)triethoxysilane, and (3-glycidoxypropyl)methyldimethoxysilane.

[0146] The POE-based surfactant may be at least one of polyoxyethylene octylphenyl ether and polyoxyethylene nonylphenyl ether.

[0147] The phenolic surfactant may be at least one of 4,4',4"-methylenetriphenol, 4,4',4"-ethylenetriphenol, 4-[bis(4-hydroxyphenyl)methyl]-2-methoxyphenol, 4-[bis(4-hydroxyphenyl)methyl]-2-ethoxyphenol and 4,4'-[(2-hydroxyphenyl)methylene]bis[2-methylphenol].

[0148] The monomer may be a photocrosslinker or a thermal crosslinker. The monomer may be an acrylic monomer. For example, it may be at least one of 2-hydroxypropol acylate, 2-hydroxymethyl methacrylate, 2-hydroxyethyl methacrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, sec-butyl methacrylate, tert-butyl methacrylate, methyl acrylate, 1,4-butanediol diacrylate, 1,3-butanediol diacrylate, ethylene glycol diacrylate, trimethylolpropane diacrylate, and trimethylolpropane triacrylate. However, the embodiment is not limited thereto, and the monomer may also be, for example, an epoxy-based monomer. Based on the overall weight of the first dam DM1, the content of the aforementioned monomer may be greater than 0.1wt% and less than 10wt%.

[0149] The first dam DM1 includes a repeating unit including a hydrophobic group having a fluorine group or a silyl group. Therefore, the first dam DM1 exhibits hydrophobicity.

[0150] When the encapsulation layer TFE is formed, an organic film OL is formed on the first inorganic film IOL1. Since the organic monomer forming the organic film OL is hydrophilic in most cases, when the first inorganic film IOL1 is hydrophobic, the organic monomer is not easy to diffuse on the first inorganic film IOL1. Therefore, the diffusivity of the organic monomer can be improved by forming the first inorganic film IOL1 with the hydrophilic materials such as the above-mentioned silicon nitride, silicon oxide, silicon oxynitride, etc. However, in this case, the problem of the organic monomer crossing the first inorganic film IOL1 and flowing to the outer contour of the first dam DM1 may occur. In this case, the problem of air or moisture penetrating into the exposed organic layer and reducing the durability of the display panel DP may occur.

[0151] According to the display panel DP of an embodiment, the first dam DM1 having hydrophobicity may be disposed on the first inorganic film IOL1. Therefore, the organic monomer cannot cross the first dam DM1 due to the surface tension of the first dam DM1 having hydrophobicity. Therefore, the organic layer may not be exposed, and the durability of the display panel DP may be improved.

[0152] In one embodiment, the electrode hole CNE-H may be filled and insulated by a pixel defining film PDL or the like. Therefore, it is formed to be higher than the outermost contour of the non-display area NDA that is not insulated by the pixel defining film PDL (for example, the portion where the power electrode E-VSS is arranged). Therefore, in the case where the pixel defining film PDL is overlapped with the electrode hole CNE-H, since the first dam DM1 is arranged on the pixel defining film PDL, the height of the first dam DM1 is formed lower, and the monomer may overflow. However, in one embodiment, since the first dam DM1 includes a hydrophobic group including a fluorine group or a silyl group, the hydrophobicity is further improved, so even if the first dam DM1 is formed to overlap with the electrode hole CNE-H on a plane, the organic monomer can not overflow. Therefore, in one embodiment, the area of ​​the non-display area NDA can be reduced by arranging the first dam DM1 to overlap with the pixel defining film PDL and the electrode hole CNE-H on a plane.

[0153] Figure 6 is a cross-sectional view of a display panel according to an embodiment of the present invention. Figure 7 is a cross-sectional view of a display panel according to an embodiment of the present invention. Figure 6 and Figure 7 Shown with Figure 5 The cross section of the display panel corresponds to the cross section of the area.

[0154] Reference Figure 6 and Figure 7The display panel DP-1, DP-2 of an embodiment may further include a second dam DM2. The second dam DM2 may be spaced apart from the first dam DM1 and arranged between the first inorganic film IOL1 and the second inorganic film IOL2. The second dam DM2 may be arranged at the outer contour of the organic film. The second dam DM2 may be arranged at the outer contour of the first dam DM1. The second dam DM2 may be spaced apart from the display area DA compared to the first dam DM1. The second dam DM2 may additionally prevent the organic monomer overflowing from the first dam DM1 from flowing out.

[0155] The second dam DM2 may include the same material as the first dam DM1 . However, the embodiment is not limited thereto, and the second dam DM2 may also include a material different from that of the first dam DM1 .

[0156] Reference Figure 6 In the display panel DP-1 of an embodiment, the second dam DM2 may be disposed on the pixel defining film PDL. The second dam DM2 may overlap the electrode hole CNE-H in a plane.

[0157] Reference Figure 7 In the display panel DP-2 of one embodiment, the second dam DM2 may be arranged so as not to overlap with the pixel defining film PDL in a plane, and may be arranged so as not to overlap with the electrode hole CNE-H in a plane. The second dam DM2 may be arranged so as to overlap with the power electrode E-VSS in a plane. In one embodiment, even if the second dam DM2 is arranged so as not to overlap with the pixel defining film PDL in a plane, the area of ​​the non-display area NDA may be reduced compared to the case where both the first dam DM1 and the second dam DM2 are arranged so as not to overlap with the pixel defining film PDL in a plane.

[0158] Hereinafter, the compound according to one embodiment of the present invention and the dam of one embodiment including the compound of one embodiment are specifically described with reference to Examples and Comparative Examples. In addition, the following Examples are examples for helping to understand the present invention, and the scope of the present invention is not limited thereto.

[0159] 1. Polymerization and evaluation of polymer resins that form dams

[0160] 1-1. Polymerization of polymer resin

[0161] (Polymerization of polymer resin of Example 1)

[0162] In order to polymerize the polymer resin of Example 1, 0.34 mol of acrylic acid monomer (chemical formula A), 0.6 mol of vinyl toluene monomer (chemical formula B) and 0.06 mol of epoxy monomer (chemical formula C) were mixed in 150 g of propylene glycol methyl ether acetate (PGMEA) as the second compound. Then, azobisisobutyronitrile (AIBN) corresponding to a ratio of 0.05 wt% of the total weight of the solution was slowly added dropwise for 1 hour, and stirred for 5 hours to form a mixed solution. Thereafter, the first compound (chemical formula D), a photocrosslinking agent (2-hydroxypropyl acrylate), a surfactant (F-470 of Dainippon Ink Chemicals Co., Ltd.) and 2-benzyl-2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-1-butanone (product name Igacure 369) as a photoinitiator were stirred and dissolved in the mixed solution. At this time, about 0.5wt% of the photoinitiator is added based on the total weight of the substances involved in the reaction. In addition, 200ml of propylene glycol methyl ether acetate (PGMEA) maintained at 100°C is prepared as a solvent in a flask under a nitrogen atmosphere. Then, the mixture of the mixed solution and the photoinitiator is dripped into the solvent for 12 hours. After the mixture is fully added, the reaction is maintained for another 12 hours, and then a polymer resin of an embodiment is formed through cooling and filtering processes.

[0163]

[0164] (Polymerization of polymer resin of Comparative Example 1)

[0165] The polymer resin of Comparative Example 1 was polymerized by the same method as the polymer resin of Example 1 except that the first compound of Example 1 was not added.

[0166] 1-2. Evaluation of liquid repellency of polymer resin

[0167] Figure 8 1D to 3D show the evaluation results of the polymer resins of Example 1 and Comparative Example 1. 1D to 3D show the situations when one to three drops of organic monomer are added, respectively. Figure 8 It can be confirmed that the polymer resin of the embodiment becomes black as the organic monomer is added. This is because the organic monomer does not diffuse or flow on the polymer resin of the embodiment, but accumulates on the polymer resin. Since the polymer resin of the comparative example does not accumulate on the polymer resin and flows when the organic monomer is added, there is almost no change in the photo even if the organic monomer is added.

[0168] Since the polymer resin of Example 1 is polymerized from a group including the first compound and thus has hydrophobicity, it is judged to have excellent liquid repellency. In contrast, since the polymer resin of Comparative Example 1 is polymerized from a group not including the first compound having a hydrophobic group, it is judged to have poor liquid repellency.

[0169] The display panel of one embodiment includes: a first dam, which is arranged between the first inorganic film and the second inorganic film and the outer contour of the organic film, and overlaps with the pixel defining film on the plane. The first dam includes a hydrophobic group including a fluorine group or a silyl group. Therefore, the display panel of one embodiment can reduce the area of ​​the non-display area.

[0170] Although the invention has been 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 invention without departing from the scope of the concept and field of the invention as described in the claims. Furthermore, the embodiments disclosed in the invention are not intended to limit the technical concept of the invention, and should be interpreted as the scope of the invention including all technical concepts within the scope of the claims and equivalents thereof.

Claims

1. A display panel, include: A base layer, defined with a display area and a non-display area adjacent to the display area; A circuit layer, arranged on the base layer, and comprising a pixel circuit layer and a driving circuit layer, wherein the pixel circuit layer overlaps with the display area, and the driving circuit layer overlaps with the non-display area and comprises a power supply electrode and a driving signal line; A light-emitting element, comprising a pixel electrode, a light-emitting layer and a common electrode, wherein the pixel electrode is arranged on the pixel circuit layer and electrically connected to the pixel circuit layer, the light-emitting layer is arranged on the pixel electrode, and the common electrode is arranged on the light-emitting layer and extends from the display area to the non-display area; A pixel defining film, arranged on the pixel electrode to expose at least a portion of the pixel electrode; an encapsulation layer disposed on the light emitting element and comprising a first inorganic film, an organic film, and a second inorganic film, wherein the organic film is disposed on the first inorganic film, and the second inorganic film is disposed on the organic film; and a first dam disposed between the first inorganic film and the second inorganic film and an outer contour of the organic film, and overlapping the non-display area and the pixel definition film in a plane, The first dam is disposed directly between the first inorganic film and the second inorganic film.

2. A display panel, include: A base layer, defined with a display area and a non-display area adjacent to the display area; A circuit layer, arranged on the base layer, and comprising a pixel circuit layer and a driving circuit layer, wherein the pixel circuit layer overlaps with the display area, and the driving circuit layer overlaps with the non-display area and comprises a power supply electrode and a driving signal line; A light-emitting element, comprising a pixel electrode, a light-emitting layer and a common electrode, wherein the pixel electrode is arranged on the pixel circuit layer and electrically connected to the pixel circuit layer, the light-emitting layer is arranged on the pixel electrode, and the common electrode is arranged on the light-emitting layer and extends from the display area to the non-display area; A pixel defining film, arranged on the pixel electrode to expose at least a portion of the pixel electrode; an encapsulation layer disposed on the light emitting element and comprising a first inorganic film, an organic film, and a second inorganic film, wherein the organic film is disposed on the first inorganic film, and the second inorganic film is disposed on the organic film; and a first dam disposed between the first inorganic film and the second inorganic film and an outer contour of the organic film, and overlapping the non-display area and the pixel definition film in a plane, a connecting electrode electrically connecting the power electrode and the common electrode and defining an electrode hole, Wherein, the first dam overlaps with the electrode hole.

3. The display panel according to claim 2, in, Also includes: The second dam is spaced apart from the first dam and is disposed between the first inorganic film and the second inorganic film and at an outer contour of the organic film.

4. The display panel according to claim 3, in, A plurality of electrode holes are defined in the connecting electrode, The second dam overlaps at least a portion of the plurality of electrode holes.

5. The display panel according to claim 3, in, The second dam does not overlap with the pixel definition film in a plane, and overlaps with at least a portion of the power electrode in a plane.

6. The display panel according to claim 2, in, The pixel defining film fills the electrode hole.

7. The display panel according to claim 2, in, The connection electrode and the pixel electrode are arranged on the same layer.

8. The display panel according to claim 1 or 2, in, The first dam comprises a polymer resin, The polymer resin includes a hydrophobic group including a fluorine group or a silyl group.

9. The display panel according to claim 8, in, The polymer resin includes a first repeating unit represented by the following chemical formula 1: [Chemical formula 1] In the chemical formula 1, R 1 To R 3 are each independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, m 1 is an integer greater than or equal to 0 and less than or equal to 5, n 1 It is an integer greater than or equal to 1 and less than or equal to 100.

10. The display panel according to claim 9, in, The first repeating unit is greater than or equal to 0.1 wt % and less than or equal to 10 wt % based on the total weight of the polymer resin.

11. The display panel according to claim 9, in, The polymer resin further comprises at least one of acrylic repeating units, imide repeating units, olefin repeating units, phenol repeating units, siloxane repeating units, polyol repeating units, ether repeating units or thiol repeating units. The repeating unit includes a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms.

12. The display panel according to claim 11, in, The acrylic repeating unit is represented by the following chemical formula 2-1, the imide repeating unit is represented by the following chemical formula 2-2, and the olefin repeating unit is represented by the following chemical formula 2-3: In the chemical formula 2-1 to the chemical formula 2-3, R 4 To R 11 are each independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 ring carbon atoms, m 2 is an integer greater than or equal to 0 and less than or equal to 5, n 2 to n 4 Each independently represents an integer of 1 to 100.

13. The display panel according to claim 8, in, The first inorganic film includes at least one of silicon oxide, silicon nitride and silicon oxynitride, The organic film includes an organic polymer including a hydrophilic repeating unit.

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