Display device
By setting an input sensing layer in the display device, including a first sensing insulating layer, a conductive layer, and a second sensing insulating layer, and utilizing a self-capacitance-based touch sensor, the problem of insufficient sensor sensitivity is solved, and effective input sensing for diverse display areas is achieved.
Patent Information
- Application Number
- CN202423111274.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-16
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The sensors in existing display devices are not sensitive enough to meet the input sensing requirements of diverse display areas.
In a display device, an input sensing layer is provided on the display element layer, including a first sensing insulating layer, a conductive layer and a second sensing insulating layer. The conductive layer is arranged on the first sensing insulating layer, and sensing electrodes and non-sensing electrodes are provided between the display area and the non-display area. Sensing is achieved using a touch sensor based on self-capacitance.
It improves the sensitivity of the sensor, enhances the input sensing capability of the display device, and adapts to diverse display area shapes.
Smart Images

Figure CN223605466U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The display device according to the present application can improve the sensitivity of a sensor. BACKGROUND
[0002] The display device can sense an input applied from the outside through a display area, and at the same time, can display various images to provide information to a user. In recent years, as various shapes of display devices are developed, the shape of the display area is also diversified.
[0003] In addition, in order to minimize the peripheral area and improve the display quality, technical development is being made to optimize the arrangement of the sensing electrodes or the wiring of the input sensing layer. SUMMARY
[0004] The display device according to the present application can improve the sensitivity of a sensor.
[0005] The display device according to an embodiment of the present application can include a display panel including a base layer and a display element layer disposed on the base layer, the base layer including a display area and a non-display area adjacent to the display area; and an input sensing layer disposed on the display element layer and including a first sensing insulating layer, a conductive layer, and a second sensing insulating layer, the conductive layer disposed on the first sensing insulating layer and including a sensing area overlapping the display area and a non-sensing area overlapping the non-display area, the second sensing insulating layer disposed on the conductive layer.
[0006] The conductive layer can further include first sensing electrodes overlapping the sensing area, second sensing electrodes each including a first portion overlapping the sensing area and a second portion connected to the first portion and overlapping the non-sensing area, and track wirings connected to the first sensing electrodes and the second sensing electrodes.
[0007] Each of the first sensing electrodes can have a polygonal shape.
[0008] Each of the first portions included in the second sensing electrodes can have a shape in which a portion of the first sensing electrode is cut.
[0009] Each of the track wirings can be connected to the first sensing electrodes and the second sensing electrodes within the display area.
[0010] The area boundary of the display area and the non-display area can be circular.
[0011] The electrode boundary of the first portions and the second portions overlapping the area boundary can have a curved line.
[0012] The area boundary of the display area and the non-display area can have a polygonal shape.
[0013] The electrode boundary of the first portion and the second portion overlapping the area boundary can have a straight line shape or a polygonal shape.
[0014] Each of the first sensing electrode and the first portion can include a first conductive line including first mesh lines extending in a first diagonal direction and second mesh lines extending in a second diagonal direction intersecting the first diagonal direction.
[0015] The first mesh lines and the second mesh lines intersecting each other can define first mesh opening portions.
[0016] The display element layer can include pixels including display elements and pixel circuits, and a pixel definition film in which pixel opening portions are defined.
[0017] An area in which the display elements are exposed by the pixel opening portions can be defined as a light emitting area.
[0018] The light emitting area can overlap each of the first mesh opening portions.
[0019] The light emitting area can include a first light emitting area displaying red, extending in the first diagonal direction between a first direction and a second direction intersecting the first direction, and having a bar shape, a second light emitting area displaying green, extending in the first diagonal direction, and having a bar shape, and a third light emitting area having a diamond shape and displaying blue.
[0020] The second portion can include a second conductive line including third mesh lines extending in the first diagonal direction and fourth mesh lines extending in the second diagonal direction.
[0021] The third mesh lines and the fourth mesh lines intersecting each other can define second mesh opening portions.
[0022] A line width of the second conductive line included in the second portion can be greater than a line width of the second conductive line included in the first portion.
[0023] Each of the second portions can have a continuous, unitary shape in an area overlapping the non-display area.
[0024] The display element layer can include light emitting elements.
[0025] The second mesh opening portions can not overlap the light emitting elements.
[0026] An area on a plane of the second sensing electrode can be 0.9 times or more and 1.1 times or less of an area on a plane of the first sensing electrode.
[0027] The display element layer can include a first electrode and a second electrode disposed on the first electrode and overlapping at least a portion of the non-display area.
[0028] The second portion can overlap the second electrode.
[0029] A capacitance of the second sensing electrode can be 0.9 times or more and 1.1 times or less of a capacitance of the first sensing electrode.
[0030] The second sensing electrode can include a first portion, a second portion, and a third portion.
[0031] The first portion, the second portion, and the third portion can be connected to each other to have an integrated shape.
[0032] The display device can further include an integrated circuit disposed on a side of the display panel.
[0033] The track wiring can not overlap each other and extend to the side direction to be connected to the integrated circuit.
[0034] The first sensing electrode can have a rectangular shape on a plane and be arranged in a first direction and a second direction perpendicular to the first direction.
[0035] The second sensing insulating layer can cover the conductive layer.
[0036] An end of the second sensing insulating layer can be spaced apart from an end of the display panel.
[0037] The input sensing layer including the first sensing electrode and the second sensing electrode can be a self-capacitance type touch sensor.
[0038] In the display device according to an embodiment of the present disclosure, an electrode adjacent to a boundary of a display area and a non-display area is extended to a portion overlapping the non-display area, and thus a feature that a sensor sensitivity is improved can be exhibited. BRIEF DESCRIPTION OF DRAWINGS
[0039] Figure 1 is a perspective view illustrating a display device according to an embodiment of the present disclosure.
[0040] Figure 2 is a cross-sectional view corresponding to line I-I' of Figure 1
[0041] Figure 3 is a sectional view of a portion of the display device corresponding to line X-X' of
[0042] Figure 4 is a sectional view of a portion of the display device corresponding to line X-X' of Figure 3
[0043] Figure 5 is a plan view of a portion of the input sensing layer according to an embodiment of the present application.
[0044] Figure 6 is a plan view of region AA' of Figure 5
[0045] Figure 7 is a plan view of region M1 of Figure 6
[0046] Figure 8 is a plan view of region BB' of Figure 5
[0047] Figure 9 is a plan view of a portion of the input sensing layer according to an embodiment of the present application.
[0048] Figure 10 is a sectional view of a portion of the display device according to an embodiment of the present application.
[0049] Figure 11 is a plan view of a portion of the display device according to an embodiment of the present application.
[0050] Figure 12 is a sectional view of a portion of the display device corresponding to line X-X' of Figure 11
[0051] Figure 13 is a plan view of the input sensing layer according to an embodiment of the present application.
[0052] BRIEF DESCRIPTION OF DRAWINGS
[0053] DETAILED DESCRIPTION
[0054] The present application can be modified in various ways and can have various forms, and specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the present application to a specific disclosed form, and it should be understood to include all modifications, equivalents, and even alternatives within the spirit and technical scope of the present application.
[0055] In the present specification, in the case where a certain constitutional element (or region, layer, part, etc.) is referred to as being "on" another constitutional element, connected to or combined with another constitutional element, it means that it can be directly placed, connected or combined on the other constitutional element, or a third constitutional element can be placed between them.
[0056] The same reference numerals denote the same constitutional elements. Further, in the drawings, the thickness, ratio and size of the constitutional elements are exaggerated for the sake of effective explanation of the technology. "And / or" includes all combinations of one or more of the relevant constitutional elements that can be defined.
[0057] The terms "first", "second", and so on can be used to explain various constitutional elements, but the constitutional elements are not limited by the terms. The terms are used only to distinguish one constitutional element from another constitutional element. For example, a first constitutional element can be named a second constitutional element without departing from the scope of the present utility model, and similarly, a second constitutional element can be named a first constitutional element. Unless the context clearly dictates otherwise, the singular expression includes the plural expression.
[0058] Further, the terms "under", "lower side", "above", "upper side", and so on are used for the sake of explanation of the relative relationship of the constitutional elements shown in the drawings. The terms are relative concepts, and are explained based on the direction shown in the drawings.
[0059] The terms "include" or "have" and so on are used to specify the existence of the features, numbers, steps, operations, constitutional elements, components or combinations thereof described in the specification, and it should be understood that the existence or additional possibility of one or more other features or numbers, steps, operations, constitutional elements, components or combinations thereof is not precluded.
[0060] Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model belongs. Further, the same terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with the meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0061] Hereinafter, embodiments of the present utility model will be explained with reference to the accompanying drawings.
[0062] Figure 1 is a perspective view showing a display device according to an embodiment of the present utility model. Figure 2 is a sectional view corresponding to the I-I' line of Figure 1
[0063] The display device DD according to an embodiment of the present application can be a device that is activated in accordance with an electric signal. The display device DD can include various embodiments, for example, the display device DD can be a mobile phone, a tablet, a car navigation device, a game machine, or a wearable device, but embodiments of the present application are not limited thereto.
[0064] In Figure 1 , a case where the display device DD included in the car AM is provided in a form of a display included in a center information display (CID) or a digital dash is exemplarily shown.
[0065] The display device DD can include a display region AA-DD and a non-display region NAA-DD.
[0066] The display region AA-DD can be a region where an image IM is displayed. In Figure 1 , a case where speed information of the car AM is represented as an image IM is exemplarily shown.
[0067] The non-display region NAA-DD can be a region where the image IM is not displayed. The non-display region NAA-DD can surround the display region AA-DD. Thereby, a shape of the display region AA-DD can be substantially defined by the non-display region NAA-DD. However, this is exemplarily shown, and the non-display region NAA-DD can be disposed adjacent to only one side of the display region AA-DD, and can be omitted.
[0068] The display region AA-DD can be a region parallel to a surface defined by a first direction DR1 and a second direction DR2 intersecting the first direction DR1.
[0069] In the present specification, an upper surface (or a front surface) and a lower surface (or a back surface) of each component are defined with reference to a direction in which an image is displayed. The upper surface and the lower surface can face each other with reference to a third direction DR3, and normal directions of the upper surface and the lower surface each can be parallel to the third direction DR3. In addition, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 are relative concepts, and can be converted into other directions. Hereinafter, the first direction, the second direction, and the third direction are directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3, respectively, and the same reference numerals are referred to.
[0070] Referring to Figure 2 , the display device DD can include a display module DM and a window module WM.
[0071] The display module DM can be a configuration that generates an image and senses an input applied from the outside. The display module DM according to an embodiment can include a display panel DP and an input sensing layer ISP disposed on the display panel DP.
[0072] The display panel DP can be a configuration that substantially generates an image. The display panel DP can be a light emitting type display panel. For example, the display panel DP can be an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot display panel, a micro LED display panel, or a nano LED display panel.
[0073] The display panel DP can include a base layer BS, a circuit element layer DP-CL, a display element layer DP-ED, and a encapsulation layer TFE.
[0074] The base layer BS can be a member that provides a base surface on which the circuit element layer DP-CL is disposed.
[0075] The base layer BS can be a rigid substrate or a flexible substrate that can be bent, folded, rolled, or the like. The base layer BS can be a glass substrate, a metal substrate, a polymer substrate, or the like. However, embodiments are not limited thereto, and the base layer BS can be an inorganic layer, an organic layer, or a composite layer.
[0076] The base layer BS can have a multi-layer structure. For example, the base layer BS can include a first synthetic resin layer, an intermediate layer having a multi-layer or single-layer structure, and a second synthetic resin layer disposed on the intermediate layer. The intermediate layer can be referred to as a base barrier layer. The intermediate layer can include a silicon oxide (SiO x ) layer and an amorphous silicon (a-Si) layer disposed on the silicon oxide layer, but is not particularly limited thereto. For example, the intermediate layer can include at least one of a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, and an amorphous silicon layer.
[0077] Each of the first and second synthetic resin layers can include a polyimide-based resin. In addition, each of the first and second synthetic resin layers can include at least one of an acrylate-based resin, a methacrylate-based resin, a polyisoprene-based resin, a vinyl-based resin, an epoxy-based resin, a urethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyamide-based resin, and a perylene-based resin.
[0078] The circuit element layer DP-CL can be disposed on the base layer BS. The circuit element layer DP-CL can include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line, etc. The insulating layer, the semiconductor layer, and the conductive layer can be formed on the base layer BS by coating, deposition, etc., and then the insulating layer, the semiconductor layer, and the conductive layer can be selectively patterned by a plurality of photolithography processes. Thereafter, the semiconductor pattern, the conductive pattern, and the signal line included in the circuit element layer DP-CL can be formed.
[0079] The display element layer DP-ED can be disposed on the circuit element layer DP-CL. The display element layer DP-ED can include a light emitting element. For example, the display element layer DP-ED can include an organic light emitting substance, an inorganic light emitting substance, an organic-inorganic light emitting substance, a quantum dot, a quantum rod, a micro-LED, or a nano-LED.
[0080] The encapsulation layer TFE can be disposed on the display element layer DP-ED. The encapsulation layer TFE can prevent foreign substances such as moisture, oxygen, and dust particles from penetrating into the display element layer DP-ED.
[0081] The input sensing layer ISP can be disposed on the display panel DP. The input sensing layer ISP can sense an external input applied from the outside. The external input can be a user's input. The user's input can include an external input in various forms of a part of a user's body, light, heat, a pen, or pressure, etc.
[0082] The input sensing layer ISP can be formed on the display panel DP through a continuous process. In this case, the input sensing layer ISP can be denoted as being directly disposed on the display panel DP. The direct disposition can mean that a third constituent element is not disposed between the input sensing layer ISP and the display panel DP. That is, a separate adhesive member can not be disposed between the input sensing layer ISP and the display panel DP. However, embodiments of the present application are not limited thereto, and the input sensing layer ISP can be combined with the display panel DP through an adhesive member. The adhesive member can include a general adhesive or a bonding agent.
[0083] Although not separately shown, the display module DM can further include an optical layer disposed on the input sensing layer ISP. The optical layer can be an anti-reflection layer that reduces reflectance generated by external light incident from the outside of the display module DM. The optical layer can include a polarizing plate, or can include a color filter layer.
[0084] A window module WM can be disposed on a display module DM. The window module WM can cover the entire outer side of the display module DM. The window module WM can have a shape corresponding to the shape of the display module DM. In a display device DD of one embodiment, the window module WM can comprise an optically transparent insulating material. The window module WM can be a glass substrate or a polymer substrate. For example, the window module WM can be a reinforced glass substrate that has undergone a strengthening treatment.
[0085] The window module WM may include a base substrate WP as an optically transparent insulating material. The base substrate WP may contain an optically transparent insulating material. The base substrate WP may include at least one of a glass substrate and a synthetic resin film. The base substrate WP may have a single-layer structure or a multilayer structure composed of multiple films bonded together. The window module WM may also include functional layers disposed on the base substrate WP, such as an anti-fingerprint layer, a phase control layer, or a hard coating.
[0086] The window module WM may also include an adhesive layer AP. The base substrate WP and the display module DM can be bonded together via the adhesive layer AP. However, it is not limited to this; the adhesive layer AP can be omitted, and the window module WM can be directly placed on the display module DM.
[0087] Figure 3 This is an exploded perspective view of a display module according to an embodiment of the present invention.
[0088] The input sensing layer (ISP) can include a sensing area (AA) and a non-sensing area (BA). The sensing area (AA) can correspond to... Figure 1 The display area AA-DD of the display device DD shown is illustrated. The non-sensing area BA can correspond to... Figure 1 The non-display area NAA-DD of the display device DD shown.
[0089] A boundary BL can be defined between the sensing area AA and the non-sensing area BA. The shape of the boundary BL can be indirectly determined based on the shape of the sensing area AA. Figure 3 The area boundary BL, which has a circle, is shown in dashed lines. However, there are no particular restrictions on the shape of the area boundary BL. For example, the shape of the area boundary BL can correspond to a polygon or an amorphous shape, etc.
[0090] The display panel (DP) may include a display area (DA) and a non-display area (NDA). The display area (DA) may correspond to the sensing area (AA) of the input sensing layer (ISP), and the non-display area (NDA) may correspond to the non-sensing area (BA) of the input sensing layer (ISP).
[0091] The display panel DP can include pixels PX. The pixels PX can be provided as a plurality, and the pixels PX can be arranged in a first direction DR1 and a second direction DR2 within a display area DA.
[0092] Figure 4 is a cross-sectional view corresponding to a II-II' line of Figure 3 .
[0093] Referring to Figure 4 , the display module DM (referring to Figure 3 ) can include a display panel DP and an input sensing layer ISP.
[0094] The display panel DP can include a base layer BS, a circuit element layer DP-CL, a display element layer DP-ED, and a encapsulation layer TFE.
[0095] At least one inorganic layer can be formed on an upper surface of the base layer BS. The inorganic layer can include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer can be formed as a plurality of layers. The inorganic layer of the plurality of layers can constitute a barrier layer and / or a buffer layer. In the present embodiment, the display panel DP can further include a buffer layer BFL.
[0096] The buffer layer BFL is disposed on the base layer BS. The buffer layer BFL can improve the bonding force between the base layer BS and the semiconductor pattern. The buffer layer BFL can include a silicon oxide layer and a silicon nitride layer, which can be alternately stacked.
[0097] The semiconductor pattern can be disposed on the buffer layer BFL. The semiconductor pattern can include polysilicon. However, it is not limited thereto, and the semiconductor pattern can also include amorphous silicon, low-temperature polysilicon, or an oxide semiconductor.
[0098] Figure 4 Only a part of the semiconductor pattern is shown, and the semiconductor pattern can also be disposed in other areas. The semiconductor pattern can be arranged in a specific rule across the pixels. The semiconductor pattern can have different electrical properties according to whether it is doped or not. The semiconductor pattern can include a high-conductivity region having high conductivity and a low-conductivity region having low conductivity. The first region can be doped with an N-type dopant or a P-type dopant. The P-type transistor can include a doped region doped with a P-type dopant, and the N-type transistor can include a doped region doped with an N-type dopant. The low-conductivity region can be a non-doped region, or can be doped at a lower concentration than the high-conductivity region.
[0099] The high-conductivity region can have a higher conductivity than the low-conductivity region, and can substantially function as an electrode or a signal line. The low-conductivity region can substantially correspond to an active (or channel) region of a transistor. In other words, a portion of the semiconductor pattern can be an active region of a transistor, another portion can be a source region or a drain region of the transistor, and still another portion can be a connection electrode or a connection signal line. In Figure 4 In the drawing, one of the transistors TR included in the pixel PX (refer to Figure 3 ) and the light-emitting element OLED are shown as examples.
[0100] The transistor TR can include a source region SC, a channel region AC, a drain region DC, and a gate GT. The source region SC, the channel region AC, and the drain region DC can be formed in the semiconductor pattern. The source region SC and the drain region DC can extend in opposite directions from the channel region AC in a cross section. Figure 4 A portion of the connection signal line SCL formed by the semiconductor pattern is shown in the drawing. Although not shown separately, the connection signal line SCL can be electrically connected to the drain region DC of the transistor TR in a plan view.
[0101] The first insulating layer 10 can be disposed on the buffer layer BFL. The first insulating layer 10 can overlap the plurality of pixels collectively, and can cover the semiconductor pattern. The first insulating layer 10 can be an inorganic layer and / or an organic layer, and can have a single-layer structure or a multi-layer structure. The first insulating layer 10 can contain at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In the present embodiment, the first insulating layer 10 can be a single-layer silicon oxide layer. Not only the first insulating layer 10, but also the insulating layers of the circuit element layer DP-CL described later can be an inorganic layer and / or an organic layer, and can have a single-layer structure or a multi-layer structure. The inorganic layer can contain at least one of the above-described substances, but is not limited thereto.
[0102] The gate GT is disposed on the first insulating layer 10. The gate GT can be a portion of a metal pattern. The gate GT overlaps the channel region AC. The gate GT can function as a mask in a process of doping the semiconductor pattern.
[0103] The second insulating layer 20 can be disposed on the first insulating layer 10, and can cover the gate GT. The second insulating layer 20 can overlap the plurality of pixels collectively. The second insulating layer 20 can be an inorganic layer and / or an organic layer, and can have a single-layer structure or a multi-layer structure. The second insulating layer 20 can contain at least one of silicon oxide, silicon nitride, and silicon oxynitride. In the present embodiment, the second insulating layer 20 can have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0104] The third insulating layer 30 can be disposed on the second insulating layer 20. The third insulating layer 30 can have a single layer structure or a multi-layer structure. For example, the third insulating layer 30 can have a multi-layer structure including a silicon oxide layer and a silicon nitride layer.
[0105] The first connection electrode CNE1 can be disposed on the third insulating layer 30. The first connection electrode CNE1 can be connected with the connection signal line SCL through a contact hole CNT1 penetrating the first insulating layer 10, the second insulating layer 20, and the third insulating layer 30.
[0106] The fourth insulating layer 40 can be disposed on the third insulating layer 30. The fourth insulating layer 40 can be a single layer of a silicon oxide layer. The fifth insulating layer 50 can be disposed on the fourth insulating layer 40. The fifth insulating layer 50 can be an organic layer.
[0107] The second connection electrode CNE2 can be disposed on the fifth insulating layer 50. The second connection electrode CNE2 can be connected with the first connection electrode CNE1 through a contact hole CNT2 penetrating the fourth insulating layer 40 and the fifth insulating layer 50.
[0108] The sixth insulating layer 60 can be disposed on the fifth insulating layer 50 and can cover the second connection electrode CNE2. The sixth insulating layer 60 can be an organic layer.
[0109] The display element layer DP-ED can be disposed on the circuit element layer DP-CL. The display element layer DP-ED can include a light emitting element OLED and a pixel definition film PDL. For example, the display element layer DP-ED can include an organic light emitting substance, a quantum dot, a quantum rod, a micro-LED, or a nano-LED. Hereinafter, an example in which the light emitting element OLED is an organic light emitting element will be described, but is not particularly limited thereto.
[0110] The light emitting element OLED can include a first electrode AE, a light emitting layer EL, and a second electrode CE. The first electrode AE can be disposed on the sixth insulating layer 60. The first electrode AE can be connected with the second connection electrode CNE2 through a contact hole CNT3 penetrating the sixth insulating layer 60.
[0111] The pixel definition film PDL can be disposed on the sixth insulating layer 60 and can cover a portion of the first electrode AE. The pixel definition film PDL can define a pixel opening portion PDL-OP. The pixel opening portion PDL-OP can expose at least a portion of the first electrode AE.
[0112] In the display panel DP of one embodiment, the light-emitting region PXA can be divided by the pixel definition film PDL. The display panel DP can include the light-emitting region PXA and a non-light-emitting region NPXA, and the non-light-emitting region NPXA can be a portion overlapping the pixel definition film PDL. A portion corresponding to the first electrode AE exposed through the pixel opening portion PDL-OP can be defined as the light-emitting region PXA.
[0113] The light-emitting layer EL can be arranged over the first electrode AE. The light-emitting layer EL can be arranged in a region corresponding to the pixel opening portion PDL-OP. That is, the light-emitting layer EL can be separated and formed in each pixel. In the case where the light-emitting layer EL is separated and formed in each pixel, each of the light-emitting layers EL can emit light of at least one of blue, red, and green. However, it is not limited thereto, and the light-emitting layer EL can also be provided in common in connection with a pixel. In that case, the light-emitting layer EL can provide blue light, or can also provide white light.
[0114] The second electrode CE can be arranged over the light-emitting layer EL. The second electrode CE can have an integrated shape and can be arranged in common in a plurality of pixels. The second electrode CE can function as a conductor of an electric storage together with the conductive layer CL, which will be described later. Figure 9 and Figure 10 This will be described later.
[0115] The sealing layer TFE can be arranged over the display element layer DP-ED. The sealing layer TFE can include a first inorganic layer IOL1, an organic layer OL, and a second inorganic layer IOL2 stacked in this order, but the layers constituting the sealing layer TFE are not limited thereto.
[0116] The inorganic layers IOL1 and IOL2 can protect the display element layer DP-ED from moisture and oxygen, and the organic layer OL can protect the display element layer DP-ED from foreign matter such as dust particles. The inorganic layers IOL1 and IOL2 can include at least one of silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and aluminum oxide. The organic layer OL can include an acrylic organic material, but is not limited thereto.
[0117] The input sensing layer ISP can be arranged over the display panel DP. The input sensing layer ISP can also be referred to as a sensor layer. The input sensing layer ISP can include a sensing base layer BS-TP, a conductive layer CL, and a sensing insulating layer IPV. In this specification, the sensing base layer BS-TP can also be referred to as a "first sensing insulating layer", and the sensing insulating layer IPV can also be referred to as a "second sensing insulating layer".
[0118] The sensing base layer BS-TP can be directly disposed on the display panel DP. The sensing base layer BS-TP can be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the sensing base layer BS-TP can also be an organic layer including an epoxy-based resin, an acrylic-based resin, or an imide-based resin. The sensing base layer BS-TP can have a single layer structure, or can have a multi-layer structure stacked in the third direction DR3.
[0119] The conductive layer CL can have a single layer structure, or can have a multi-layer structure stacked in the third direction DR3.
[0120] The conductive layer CL of the single layer structure can include a metal layer or a transparent conductive layer. The metal layer can include molybdenum, silver, titanium, copper, aluminum, or an alloy thereof. The transparent conductive layer can include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), or indium zinc tin oxide (IZTO). In addition, the transparent conductive layer can include a conductive polymer such as PEDOT, a metal nanowire, graphene, etc.
[0121] The conductive layer of the multi-layer structure can include a metal layer. The metal layer can have a three-layer structure of titanium / aluminum / titanium, for example. The conductive layer of the multi-layer structure can include at least one metal layer and at least one transparent conductive layer.
[0122] The sensing insulating layer IPV can be disposed on the conductive layer CL. The sensing insulating layer IPV can include an inorganic film. The inorganic film can include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.
[0123] Alternatively, the sensing insulating layer IPV can include an organic film. The organic film can include at least one of an acrylic-based resin, a methacrylic-based resin, a polyisoprene-based resin, an ethylene-based resin, an epoxy-based resin, a urethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyimide-based resin, a polyamide-based resin, and a perylene-based resin.
[0124] Although not shown, the input sensing layer ISP can further include an additional conductive layer disposed on the conductive layer CL, in addition to the conductive layer CL. In the case where the input sensing layer ISP further includes the additional conductive layer, the sensing insulating layer IPV can be disposed between the conductive layer CL and the additional conductive layer.
[0125] Figure 5 is a plan view of an input sensing layer according to an embodiment of the present disclosure. Figure 6 is an enlarged view of Figure 5a plan view of the AA' region of FIG. 1. Figure 7 is enlarged Figure 6 a plan view of the M1 region of FIG. 1.
[0126] Hereinafter, the arrangement and the configuration of the sensing electrodes will be described. Figure 5 to Figure 7
[0127] The input sensing layer ISP can include a sensing region AA and a non-sensing region BA adjacent to the sensing region AA. The non-sensing region BA can include a first region CA and a second region NCA adjacent to the first region CA.
[0128] The first region CA can surround the sensing region AA, and the second region NCA can surround the first region CA. Accordingly, the sensing region AA can be spaced apart from the second region NCA with the first region CA interposed therebetween.
[0129] The input sensing layer ISP can include a plurality of sensing electrodes SP and a trace (Trace) wiring TL. The sensing electrodes SP and the trace wiring TL can be included in the conductive layer CL described with reference to Figure 4
[0130] For convenience of description, the first conductive lines ML1 (see Figure 5 ) and the second conductive lines ML2 (see Figure 6 ) included in the sensing electrodes SP are omitted in Figure 8 , and only the outer configuration of the sensing electrodes SP is schematically shown.
[0131] The sensing electrodes SP can include first sensing electrodes SP1 overlapping the sensing region AA and second sensing electrodes SP2 overlapping the non-sensing region BA. In Figure 5 , the second sensing electrodes SP2 are represented by hatching in order to distinguish the first sensing electrodes SP1 and the second sensing electrodes SP2.
[0132] Each of the first sensing electrodes SP1 can have a polygonal shape in a plan view. In the present embodiment, the first sensing electrodes SP1 can be provided in a rectangular shape.
[0133] The first sensing electrodes SP1 can be arranged in a first direction DR1 and a second direction DR2 within the sensing region AA. The second sensing electrodes SP2 can be arranged along a region boundary BL. A portion of each of the second sensing electrodes SP2 can overlap the region boundary BL in a plan view.
[0134] In the present embodiment, a part of the second sensing electrode SP2 can have a different shape from the first sensing electrode SP1. For example, at least a part of the second sensing electrode SP2 can have a shape in which a part of the first sensing electrode SP1 is cut. A part of one of the second sensing electrodes SP2 can have a shape in which the first sensing electrode SP1 is cut along the outer contour boundary NL of the first area CA and the second area NCA from the quadrangular shape.
[0135] However, embodiments of the present application are not limited thereto, and the first sensing electrode SP1 and the second sensing electrode SP2 can also have the same shape. For example, the first sensing electrode SP1 and the second sensing electrode SP2 can have the same quadrangular shape.
[0136] The second sensing electrode SP2 can include a first part PT1 disposed in the sensing area AA and a second part PT2 connected to the first part PT1 and overlapping the non-sensing area BA, respectively.
[0137] The first part PT1 and the second part PT2 can be distinguished by the area boundary BL. A part of the second sensing electrode SP2 disposed in the sensing area AA with reference to the area boundary BL can be defined as the first part PT1, and a part of the second sensing electrode SP2 disposed in the first area CA with reference to the area boundary BL can be defined as the second part PT2. Figure 5 In the present embodiment, for convenience of explanation, the first part PT1 and the second part PT2 of each of the second sensing electrodes SP2 are shown in different hatching.
[0138] In the present embodiment, the input sensing layer ISP can be a self-capacitance type touch sensor.
[0139] Referring to Figure 6 , the first sensing electrode SP1 can include a first conductive line ML1.
[0140] The first conductive line ML1 can include a first mesh line ML1a extending in a first diagonal direction SR1 and a second mesh line ML1b extending in a second diagonal direction SR2 crossing the first diagonal direction SR1.
[0141] Within the first sensing electrode SP1, the first mesh line ML1a can be arranged apart from each other in the second diagonal direction SR2, and the second mesh line ML1b can be arranged apart from each other in the first diagonal direction SR1.
[0142] The first mesh line ML1a and the second mesh line ML1b crossing each other can define a first mesh opening MO1. For the first mesh opening MO1, it will be described Figure 7 in the later-described.
[0143] Each of the trace wirings TL can be connected with the first sensing electrode SP1 within the sensing region AA. One end of the trace wiring TL can be connected with the first sensing electrode SP1, respectively.
[0144] The trace wiring TL can extend in the second direction DR2.
[0145] The display module DM can further include an integrated circuit (not shown) arranged at one side of the input sensing layer ISP (refer to Figure 2 ). For example, the integrated circuit can be a driving circuit.
[0146] The other end of the trace wiring TL can be connected with the integrated circuit.
[0147] That is, one end and the other end of the trace wiring TL can be connected with the first sensing electrode SP1 and the integrated circuit, respectively, thereby functioning to transmit an electric signal between the first sensing electrode SP1 and the integrated circuit.
[0148] The input sensing layer ISP (refer to Figure 2 ) of the present embodiment is provided in a self capacitance manner, and thus the trace wiring TL can extend within the sensing region AA and be connected with the integrated circuit without extending in the non-sensing region BA and bypassing the sensing region AA. In Figure 6 , a case where the trace wiring TL extends in the second direction DR2 within the sensing region AA is shown as an example. However, embodiments of the present application are not limited thereto, and the trace wiring TL can extend in the second direction DR2 between the first sensing electrodes SP1 and be connected with the integrated circuit.
[0149] Referring to Figure 7 , the light emitting region PXA includes a first light emitting region PXA1 displaying red and having a bar shape, a second light emitting region PXA2 displaying green and having a bar shape, and a third light emitting region PXA3 having a diamond shape and displaying blue.
[0150] In the present embodiment, the area on the plane can increase in the order of the second light emitting region PXA2, the first light emitting region PXA1, and the third light emitting region PXA3.
[0151] The first light emitting region PXA1 and the second light emitting region PXA2 can extend in the first diagonal direction SR1 or extend in the second diagonal direction SR2.
[0152] The light emitting region PXA can overlap each of the first mesh opening portions MO1. Light provided from the light emitting region PXA can be emitted to the outside through the first mesh opening portions MO1. Thereby, even if the input sensing layer ISP (refer to Figure 4) disposed on the display element layer DP-ED (refer to Figure 4 The light provided by the light emitting region PXA can also not be blocked by the input sensing layer ISP.
[0153] However, Figure 7 The arrangement of the pixel region shown in FIG. 6 is shown as an example and is not particularly limited thereto.
[0154] Figure 8 is a plan view of the BB' region enlarged Figure 5
[0155] Hereinafter, the structure in which the second sensing electrode SP2 ensures the capacitance will be described with reference to Figure 8
[0156] The conventional input sensing layer ISP of the non-rectangular shape (refer to Figure 2 ) has a shape in which the second sensing electrode SP2 is cut by the region boundary BL.
[0157] That is, the second sensing electrode SP2 includes the first portion PT1 but does not include the second portion PT2. Thereby, the area on the plane of the second sensing electrode SP2 of the comparative example is smaller than the area on the plane of the first sensing electrode SP1, and thus a capacitance difference between the sensing electrodes SP1 and SP2 will be generated, and there is a problem in that the touch sensitivity of the outer portion of the display device is reduced due to the capacitance difference between the sensing electrodes SP1 and SP2.
[0158] The second sensing electrode SP2 according to the present embodiment includes not only the first portion PT1 disposed in the sensing region AA but also the second portion PT2 disposed in the non-sensing region BA, and thus it is possible to prevent the problem in which the touch sensitivity is reduced at the outer portion of the display device DD (refer to Figure 1 ).
[0159] The input sensing layer of the mutual-capacitance method needs to be disposed in a detour through the non-sensing region BA to connect the sensing electrode and the track wiring of the driving circuit, but the track wiring TL (refer to Figure 6 ) overlaps the sensing region AA and is not disposed in the non-sensing region BA, and thus it is possible to extend the range of the second sensing electrode SP2 to the non-sensing region BA in which the track wiring TL is not disposed.
[0160] Accordingly, the display device DD according to the present embodiment can compensate for the insufficient capacitance due to the cut shape of the first portion PT1 of the second sensing electrode SP2 by extending the area on the plane of the second sensing electrode SP2.
[0161] Accordingly, the capacitance of the second sensing electrode SP2 can be the same / similar to the capacitance of the first sensing electrode SP1.
[0162] In the present specification, the same / similar capacitance of the sensing electrodes can mean that the capacitance of the second sensing electrode SP2 is 0.9 times or more and 1.1 times or less of the capacitance of the first sensing electrode SP1. However, embodiments of the present application are not limited thereto, and as long as the difference in touch sensitivity of the first sensing electrode SP1 and the second sensing electrode SP2 is a difference in a degree that a user cannot recognize, there is no particular limitation.
[0163] Accordingly, since the first sensing electrode SP1 and the second sensing electrode SP2 have the same / similar capacitance, it is possible to prevent a problem in which the touch sensitivity is reduced at the outer portion of the display device DD (refer to Figure 1 ).
[0164] In the present embodiment, the region boundary BL can be circular, and the electrode boundary PL between the first portion PT1 and the second portion PT2 overlapping the region boundary BL can have a curved shape according to the circular shape of the region boundary BL.
[0165] In Figure 8 , the electrodes included in the second sensing electrode SP2 having different shapes are exemplarily classified into a 2-1 sensing electrode SP2-1, a 2-2 sensing electrode SP2-2, and a 2-3 sensing electrode SP2-3.
[0166] The 2-1 sensing electrode SP2-1 can include the first portion PT1 and the second portion PT2. Referring to Figure 8 , the sum of the areas of the first portion PT1 and the second portion PT2 can be the same / similar to the area of the first sensing electrode SP1. Thereby, the 2-1 sensing electrode SP2-1 can secure the same / similar capacitance as the first sensing electrode SP1.
[0167] The 2-2 sensing electrode SP2-2 can include the first portion PT1 and the second portion PT2. However, if the density of one or more electrodes among the first portion PT1 and the second portion PT2 is lower than the density of the electrodes of the first sensing electrode SP1, even if the areas on the planes of the first sensing electrode SP1 and the 2-2 sensing electrode SP2-2 are the same / similar, the capacitances can not be the same / similar. In this case, the 2-2 sensing electrode SP2-2 can further include a third portion PT3a connected to the second portion PT2. That is, the 2-2 sensing electrode SP2-2 can further include the third portion PT3a connected to the second portion PT2 to compensate for the insufficient capacitance.
[0168] The first portion PT1, the second portion PT2, and the third portion PT3a included in the second-2 sensing electrode SP2-2 can be connected to each other to have an integrated shape. Thereby, the first portion PT1, the second portion PT2, and the third portion PT3a included in the second-2 sensing electrode SP2-2 can function as a conductor for one sensing electrode as a whole.
[0169] The second-3 sensing electrode SP2-3 can include the first portion PT1 and the second portion PT2. However, the second portion PT2 included in the second-3 sensing electrode SP2-3 can have a shape cut along the outer contour boundary NL. Thereby, the second-3 sensing electrode SP2-3 can further include a third-1 portion PT3a and a third-2 portion PT3b adjacent to the second portion PT2. Thereby, the second-3 sensing electrode SP2-3 can compensate for the insufficient capacitance due to the cut shape of the second portion PT2.
[0170] Figure 8 The case where the second-3 sensing electrode SP2-3 includes two third portions PT3a, PT3b is shown as an example in FIG. 12, but the number of third portions included in the sensing electrode is not particularly limited.
[0171] Figure 9 is a diagram of a CC' region of Figure 8 amplification
[0172] Hereinafter, a method of adjusting capacitance by adjusting the second thickness TH2 of the second conductive line of the second-2 sensing electrode SP2-2 will be described with reference to Figure 9 The matters to be described with respect to the second-2 sensing electrode SP2-2 can be identically / similarly applied to the other second sensing electrodes SP2, SP2-2 shown in FIG. 13. Figure 9 Figure 5 The second portion PT2 can include a second conductive line ML2.
[0173] The second conductive line ML2 can include a first mesh line ML2a extending in a first diagonal direction SR1 and a second mesh line ML2b extending in a second diagonal direction SR2 crossing the first diagonal direction SR1. In the present specification, the first mesh line ML2a and the second mesh line ML2b included in the second conductive line ML2 can be respectively denoted as a "third mesh line" and a "fourth mesh line".
[0174] However, the first mesh line ML2a and the second mesh line ML2b are distinguished for convenience of description, and each of the second portions PT2 can have a continuous integrated shape in a region overlapping the non-sensing region BA.
[0175] However, the first mesh line ML2a and the second mesh line ML2b are distinguished for convenience of description, and each of the second portions PT2 can have a continuous integrated shape in a region overlapping the non-sensing region BA.
[0176] The first mesh lines ML2a and the second mesh lines ML2b crossing each other can define second mesh opening portions MO2.
[0177] Unlike the first mesh opening portions MO1, the second mesh opening portions MO2 can not overlap the light emitting regions PXA. That is, even if the area in the plane of the second mesh opening portions MO2 becomes smaller, the problem of the light emitted from the light emitting regions PXA being blocked does not occur.
[0178] Since the capacitance is proportional to the area in the plane of the conductor, the capacitance of the sensing electrodes SP1, SP2 can be proportional to the area in the plane that the sensing electrodes SP1, SP2 have.
[0179] That is, if the area in the plane of the metal electrode that the first sensing electrode SP1 (see Figure 5 ) has and the area in the plane of the metal electrode that the second sensing electrode SP2 has are designed to be the same / similar, the capacitance difference of the first sensing electrode SP1 and the second sensing electrode SP2 can be reduced.
[0180] In the present embodiment, the second thickness TH2 of the second conductive lines ML2 can be different from the first thickness TH1 of the first conductive lines ML1.
[0181] In the present specification, the thicknesses TH1, TH2 of the conductive lines ML1, ML2 can also be respectively referred to as "line widths".
[0182] In the case of the first portion PT1, since the light emitting regions PXA overlap the first mesh opening portions MO1, it can be difficult to adjust the thickness TH1 of the first conductive lines ML1.
[0183] Unlike this, since the second mesh opening portions MO2 do not overlap the light emitting regions PXA, even if the thickness of the second conductive lines ML2 is increased, the light provided by the light emitting elements OLED (see Figure 4 ) is not blocked.
[0184] Therefore, by designing the second thickness TH2 of the second conductive lines ML2 to be greater than the first thickness TH1 of the first conductive lines ML1, the area in the plane of the second portion PT2 can be increased. Thereby, the area in the plane of the second sensing electrode SP2 including the second conductive lines ML2 can be designed to be the same / similar to the area in the plane of the first sensing electrode SP1, so that the capacitance of the second sensing electrode SP2 is the same / similar to the capacitance of the first sensing electrode SP1.
[0185] Figure 10 is a cross-sectional view of a portion of a display device according to an embodiment of the present invention.
[0186] Figure 10 may be corresponding toFigure 9 A portion of a cross-sectional view of a display device of the X-X' line. For ease of explanation, the constitution under the encapsulation layer TFE and the second electrode CE in the display panel DP (refer to Figure 4 ) is omitted and shown.
[0187] Referring to Figure 10 , the second electrode CE can be arranged not only to overlap the sensing area AA but also to overlap the non-sensing area BA. That is, at least a portion of the second electrode CE can overlap the non-sensing area BA.
[0188] In the manufacturing process of the display device DD, the second electrode CE provided as a common electrode can be arranged to extend to the outside of the sensing area AA.
[0189] The area in the non-sensing area BA overlapping the second electrode CE can be defined as a first area CA, and the area not overlapping the second electrode CE can be defined as a second area NCA.
[0190] The portion of the conductive layer CL arranged in the sensing area AA can be defined as a first conductive portion CL1, and the portion arranged in the non-sensing area BA can be defined as a second conductive portion CL2. However, the first conductive portion CL1 and the second conductive portion CL2 are distinguished for ease of explanation, and the first conductive portion CL1 and the second conductive portion CL2 can be one layer formed by the same process.
[0191] The first conductive portion CL1 can constitute the first conductive line ML1 (refer to Figure 8 ) included in the first portion PT1 (refer to Figure 9 ). The second conductive portion CL2 can constitute the second conductive line ML2 (refer to Figure 8 ) included in the second portion PT2 (refer to Figure 8 ) or the third portion PT3 (refer to Figure 9 ).
[0192] The first conductive portion CL1 and the second conductive portion CL2 can overlap the second electrode CE. Thereby, the first conductive portion CL1 and the second conductive portion CL2 can be arranged to be spaced apart from the second electrode CE. That is, the first conductive portion CL1 and the second conductive portion CL2 can be arranged to be spaced apart from the second electrode CE with the sensing base layer BS-TP and the encapsulation layer TFE therebetween.
[0193] The second sensing insulating layer IPV can cover the conductive layer CL.
[0194] The end IPV-E of the second sensing insulating layer IPV can be spaced apart from the end DP-E of the display panel DP. The end IPV-E of the second sensing insulating layer IPV can be arranged inside the display device DD than the end DP-E of the display panel DP. However, embodiments of the present application are not limited thereto. For example, in a case where the second sensing insulating layer IPV is formed of an inorganic film, the end DP-E of the display panel DP can be arranged side by side with the end IPV-E of the second sensing insulating layer IPV.
[0195] Figure 11 is a plan view of a portion of a display device according to an embodiment of the present application. Figure 12 is a plan view corresponding to Figure 11 is a cross-sectional view of a portion of a display device corresponding to the X-X' line of
[0196] Figure 11 may correspond to a portion of the display device DD-1 corresponding to the CC' region shown in Figure 8 The same / similar configurations as those described with reference to Figure 1 to Figure 10 are assigned the same / similar reference numerals, and repeated description is omitted and description is made focusing on the difference.
[0197] Referring to Figure 11 and Figure 12 together, the second conductive portion CL2' included in the one sensing electrode SP2 can be arranged to be continuous and integral within the first region CA included in the non-sensing region BA. The second conductive portion CL2' can have a continuous and integral shape within the first region CA.
[0198] Thus, in the region overlapping the non-sensing region BA, the second conductive portion CL2' can not be formed with a configuration corresponding to the second mesh opening portion MO2 (see Figure 9 ) because the second conductive portion CL2' does not overlap the light emitting region PXA (see Figure 7 ). Thus, the second conductive portion CL2' does not form a configuration corresponding to the second mesh opening portion MO2 (see Figure 9 ), and can not block light provided by the display device DD-1.
[0199] In Figure 11 , the filled position S-MO2 is indicated by a dotted quadrangle. The filled position S-MO2 can indicate a position corresponding to the second mesh opening portion MO2 described with reference to Figure 9 .
[0200] In the present embodiment, the second mesh opening portion MO2 (see Figure 9 ) of the second conductive portion CL2' has a shape that is filled with the second sensing electrode SP2 (see Figure 9The same substance fills the shapes, and thus, the second sensing electrode SP2 according to the present embodiment can secure sufficient capacitance.
[0201] Figure 13 FIG. 1 is a plan view showing an input sensing layer ISP-a according to an embodiment of the present application.
[0202] In Figure 13 the same / similar configuration as described with reference to Figure 1 to Figure 10 the same / similar configuration as described with reference to
[0203] With reference to Figure 13 , the input sensing layer ISP-a can include a first sensing electrode SP1 and a second sensing electrode SP2-1. The first sensing electrode SP1 can be arranged along a first direction DR1 and a second direction DR2. The second sensing electrode SP2-1 can be arranged along a region boundary BL-1.
[0204] In the present embodiment, the region boundary BL-1 of the sensing region AA and the non-sensing region BA can be a polygonal shape. Figure 13 In
[0205] Thus, the electrode boundaries PL1, PL2 of the first portion PT1 and the second portion PT2 overlapping the region boundary BL-1 can have a straight line shape or a polygonal shape. For example, the first electrode boundary PL1 can have a polygonal shape, and the second electrode boundary PL2 can have a straight line shape.
[0206] For the display device according to an embodiment of the present application, in the display device having an input sensing layer of a non-regular shape, the sensitivity of the outer portion of the display device, in which the touch sensitivity can not be sensitive, can be improved.
[0207] The display device according to an embodiment of the present application changes the position and the range in forming the sensing electrode, and thus, the display device manufacturing process used in the related art can be identically / similarly applied. Thus, the display device according to an embodiment of the present application can be simply and economically manufactured without additionally changing the existing production equipment.
[0208] The above has been described with reference to the preferred embodiments of the present application, but it will be understood by those skilled in the art or those having ordinary knowledge in the relevant art that various modifications and changes can be made to the present application without departing from the scope of the present application as recited in the claims. Therefore, the technical scope of the present application is not limited to the contents described in the detailed description of the specification, but is determined by the claims.
Claims
1. A display device, characterized by comprising: The display device includes: a display panel including a base layer and a display element layer arranged on the base layer, the base layer including a display region and a non-display region adjacent to the display region; and an input sensing layer arranged on the display element layer and including a first sensing insulating layer, a conductive layer arranged on the first sensing insulating layer and including a sensing region overlapping the display region and a non-sensing region overlapping the non-display region, and a second sensing insulating layer arranged on the conductive layer, wherein the conductive layer further includes: first sensing electrodes overlapping the sensing region; second sensing electrodes each including a first portion overlapping the sensing region and a second portion connected to the first portion and overlapping the non-sensing region; and trace wirings connected to the first sensing electrodes and the second sensing electrodes.
2. The display device according to claim 1, wherein each of the first sensing electrodes has a polygonal shape, each of the first portions included in the second sensing electrodes has a shape in which a portion of the first sensing electrode is cut.
3. The display device according to claim 1, wherein each of the trace wirings is connected to the first sensing electrodes and the second sensing electrodes within the display region.
4. The display device according to claim 1, wherein a region boundary of the display region and the non-display region is circular, electrode boundaries of the first portions and the second portions overlapping the region boundary have curved lines.
5. The display device according to claim 1, wherein a region boundary of the display region and the non-display region has a polygonal shape, electrode boundaries of the first portions and the second portions overlapping the region boundary have straight line shapes or polygonal shapes.
6. The display device according to claim 1, wherein each of the first sensing electrodes and the first portions includes first conductive lines including first mesh lines extending in a first oblique direction and second mesh lines extending in a second oblique direction intersecting the first oblique direction, wherein the first mesh lines and the second mesh lines intersecting each other define first mesh opening portions.
7. The display device according to claim 6, wherein the display element layer includes: pixels including display elements and pixel circuits; and a pixel defining film in which pixel opening portions are defined, wherein a region in which the display elements are exposed by the pixel opening portions is defined as a light emitting region, the light emitting region overlapping each of the first mesh opening portions.
8. The display device according to claim 7, wherein the light emitting region includes: a first light emitting region displaying red, extending in the first oblique direction between a first direction and a second direction intersecting the first direction, and having a bar shape; a second light emitting region displaying green, extending in the first oblique direction, and having a bar shape; and a third light emitting region having a lozenge shape and displaying blue. 9. The display device according to claim 6, wherein the second portion includes a second conductive line including third mesh lines extending in the first oblique direction and fourth mesh lines extending in the second oblique direction, wherein the third mesh lines and the fourth mesh lines intersecting define second mesh opening portions.
10. The display device according to claim 9, wherein a line width of the second conductive line included in the second portion is larger than a line width of the second conductive line included in the first portion.
11. The display device according to claim 9, wherein each of the second portions has a continuous, integral shape in a region overlapping with the non-display region.
12. The display device according to claim 9, wherein the display element layer includes a light emitting element, the second mesh opening portions do not overlap with the light emitting element.
13. The display device according to claim 1, wherein an area on a plane of the second sensing electrode is 0.9 times or more and 1.1 times or less of an area on a plane of the first sensing electrode.
14. The display device according to claim 1, wherein the display element layer includes a first electrode and a second electrode disposed on the first electrode and overlapping with the non-display region at least in part, wherein the second portion overlaps with the second electrode.
15. The display device according to claim 1, wherein a capacitance of the second sensing electrode is 0.9 times or more and 1.1 times or less of a capacitance of the first sensing electrode.
16. The display device according to claim 1, wherein the second sensing electrode includes a first portion, a second portion, and a third portion, the first portion, the second portion, and the third portion are connected to each other to have an integral shape.
17. The display device of claim 1, wherein further comprising: an integrated circuit disposed on one side of the display panel, wherein the trace wirings do not overlap with each other and extend in the one side direction to be connected to the integrated circuit.
18. The display device according to claim 1, wherein the first sensing electrode has a rectangular shape on a plane and is arranged in a first direction and a second direction perpendicular to the first direction.
19. The display device according to claim 1, wherein the second sensing insulating layer covers the conductive layer, an end of the second sensing insulating layer is spaced apart from an end of the display panel.
20. The display device according to claim 1, wherein the input sensing layer including the first sensing electrode and the second sensing electrode is a self-capacitance type touch sensor.