Display device

Abstract

Embodiments of the present invention relate to a display device, the display device comprising: a substrate layer having a first region and a second region adjacent to the first region; a plurality of pixels on the first region of the substrate layer; power lines configured to power the plurality of pixels; a power pattern on the second region and electrically connected to the power lines; and a protrusion on the second region, the protrusion surrounding at least a portion of the first region and including a first protruding portion and a second protruding portion on the first protruding portion, wherein the power pattern includes an overlapping portion between the first protruding portion and the second protruding portion, the overlapping portion having an opening.

Description

[0001] Cross-reference of related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0034041, filed on March 19, 2020, with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] Some aspects of embodiments of the present invention relate to display devices with improved product reliability. Background Technology

[0004] A display device can be a device having various electronic components, such as a display panel for displaying images, input sensors for detecting external input, and electronic modules. These electronic components can be electrically connected to each other via signal lines. The electronic module can include one or more sensors, such as a camera, infrared sensor, or proximity sensor. The input sensor can be directly formed on the display panel. When the display panel changes shape, the input sensor can also change shape.

[0005] The information disclosed in this Background section is only intended to enhance the understanding of the background art, and therefore the information discussed in this Background section does not necessarily constitute prior art. Summary of the Invention

[0006] Some embodiments of the present invention include a display device having relatively improved product reliability.

[0007] According to some embodiments of the present invention, a display device may include: a substrate layer having a first region and a second region adjacent to the first region; a plurality of pixels on the first region of the substrate layer; power lines for supplying power to the plurality of pixels; a power pattern on the second region and electrically connected to the power lines; and a protrusion on the second region, the protrusion surrounding at least a portion of the first region and including a first protruding portion and a second protruding portion on the first protruding portion. The power pattern may include an overlapping portion between the first protruding portion and the second protruding portion. The overlapping portion may have an opening.

[0008] According to some embodiments, the display device may further include: an encapsulation layer on the plurality of pixels; a plurality of sensing electrodes on the first region and directly on the encapsulation layer; and a plurality of sensing lines on the second region and electrically connected to the plurality of sensing electrodes. When viewed in a plane, the plurality of sensing lines may be spaced apart from the opening.

[0009] According to some embodiments, a portion of each of the plurality of sensing lines may overlap with the power supply pattern.

[0010] According to some embodiments, the power pattern may include: a first pattern portion extending along a first direction; and a plurality of second pattern portions protruding from the first pattern portion along a second direction intersecting the first direction. The plurality of second pattern portions may include: a first branch pattern portion at least partially overlapping the plurality of sensing lines; and a second branch pattern portion not overlapping the plurality of sensing lines.

[0011] According to some embodiments, the opening may be defined in each of the first branch pattern portion and the second branch pattern portion.

[0012] According to some embodiments, the opening may be defined in the first branch pattern portion or may not be defined in the second branch pattern portion.

[0013] According to some embodiments, the overlapping portion may include a portion of each of the plurality of second pattern portions.

[0014] According to some embodiments, each of the plurality of second pattern portions may have a width equal to or less than about 1300 μm in the first direction.

[0015] According to some embodiments, when viewed in a plane, the minimum distance between the opening and the plurality of sensing lines can be equal to or greater than about 58.4 μm.

[0016] According to some embodiments, the plurality of sensing lines may be on the protrusion. Each of the plurality of sensing lines may extend in a direction intersecting the extension direction of the protrusion.

[0017] According to some embodiments, each of the plurality of sensing lines that overlap with the protrusion may have a twisted shape.

[0018] According to some embodiments, the display device may further include an additional protrusion on the second region and closer to the first region than the protrusion itself. A portion of the power pattern may be below the additional protrusion.

[0019] According to some embodiments, the additional protrusion and the second protrusion may comprise the same material.

[0020] According to some embodiments, the opening can be provided as a plurality of openings. The spacing between adjacent openings in the plurality of openings can be approximately 40 μm. Each of the plurality of openings can have a quadrilateral shape.

[0021] According to some embodiments, the first protruding portion may include organic material.

[0022] According to some embodiments of the present invention, a display device may include: a display panel having an active region and a peripheral region; and an input sensor directly on the display panel. The display panel may include: a plurality of pixels in the active region; a protrusion in the peripheral region, the protrusion surrounding at least a portion of the active region and including a first protrusion portion and a second protrusion portion on the first protrusion portion; a power line supplying power to the plurality of pixels; and a power pattern in the peripheral region and electrically connected to the power line, the power pattern including an overlap between the first protrusion portion and the second protrusion portion, the overlap portion having an opening. The input sensor may include: a plurality of sensing electrodes in the active region; and a plurality of sensing lines in the peripheral region and electrically connected to the plurality of sensing electrodes, wherein each of the plurality of sensing lines overlapping the protrusion has a twisted shape corresponding to the shape of the protrusion.

[0023] According to some embodiments, the plurality of sensing lines may be on the overlapping portion. When viewed in a plane, the plurality of sensing lines may be spaced apart from the opening.

[0024] According to some embodiments, the protrusion may extend along a first direction. The power pattern may include a first branch pattern portion and a second branch pattern portion, the first branch pattern portion and the second branch pattern portion extending along a second direction intersecting the first direction, and the first branch pattern portion and the second branch pattern portion being between the first protrusion portion and the second protrusion portion. The opening may be provided in at least one of the first branch pattern portion and the second branch pattern portion.

[0025] According to some embodiments, at least a portion of the plurality of sensing lines may be on the first branch pattern portion. The opening may be defined within the first branch pattern portion.

[0026] According to some embodiments of the present invention, a display device may include: a plurality of pixels in an active region; a protrusion surrounding at least a portion of the active region and including a first protrusion portion and a second protrusion portion on the first protrusion portion; a power pattern for transmitting power to the plurality of pixels and between the first protrusion portion and the second protrusion portion; an encapsulation layer on the plurality of pixels; a plurality of sensing electrodes in the active region; and a plurality of sensing lines electrically connected to the plurality of sensing electrodes and spaced apart from the power pattern across the second protrusion portion. The power pattern may have an opening exposing a portion of the first protrusion portion. Each of the plurality of sensing lines overlapping the protrusion may have a twisted shape corresponding to the shape of the protrusion. Attached Figure Description

[0027] Figure 1 A perspective view of a display device illustrating some embodiments of the present invention is shown.

[0028] Figure 2 A simplified cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0029] Figure 3 A plan view illustrating a display panel according to some embodiments of the present invention is shown.

[0030] Figure 4 A plan view illustrating an input sensor according to some embodiments of the present invention is shown.

[0031] Figure 5A An enlarged plan view of a display device according to some embodiments of the present invention is shown.

[0032] Figure 5B It shows Figure 5A A magnified plan view of a portion of the image.

[0033] Figure 6 A cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0034] Figure 7 A cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0035] Figure 8 A cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0036] Figure 9 An enlarged plan view of a display device according to some embodiments of the present invention is shown. Detailed Implementation

[0037] In this description, when a component (or area, layer, part, etc.) is referred to as being "on", "connected to", or "coupled to" other components, the component may be directly on, directly connected to, or directly coupled to other components, or there may be at least one intermediate component between the component and other components.

[0038] The same reference numerals denote the same components. Furthermore, in order to effectively explain the technical content, the thickness, proportions, and dimensions of the components are exaggerated in the accompanying drawings.

[0039] The term "and / or" includes one or more combinations defined by the relevant components.

[0040] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are used only to distinguish one component from another. For example, a first component may be referred to as a second component without departing from the scope of the invention, and vice versa. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well.

[0041] Additionally, the terms “below,” “under,” “above,” and “above” are used herein to describe the relationship of one component to other components(s) shown in the accompanying drawings. Relative terms are intended to cover different orientations other than those depicted in the drawings.

[0042] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art. Furthermore, unless expressly defined herein, terms defined in a general dictionary shall be interpreted as having the same meaning or the meaning defined in the context of the art, and shall not be construed as having an idealized or overly formal meaning.

[0043] It should be understood that the terms “comprising,” “including,” and “having” are used to indicate the presence of the stated features, wholes, steps, operations, components, elements, or combinations thereof, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, components, elements, or combinations thereof.

[0044] Now, some aspects of embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] Figure 1 A perspective view of a display device illustrating some embodiments of the present invention is shown.

[0046] Reference Figure 1The display device 1000 may be a device activated in response to an electrical signal. For example, the display device 1000 may be a mobile phone, tablet computer, car navigation system, game console, or wearable device, but is not necessarily limited to these in the embodiments of the present invention. Figure 1 An example of a mobile phone as a display device 1000 is shown.

[0047] The display device 1000 can display an image through an active region 1000A. The active region 1000A may include a plane defined by a first direction DR1 and a second direction DR2. The active region 1000A may also include curved surfaces bending from at least two sides of the plane. However, the shape of the active region 1000A is not necessarily limited to this. For example, the active region 1000A may consist only of a plane, or it may include multiple curved surfaces bending from at least two sides of the plane, such as four curved surfaces bending from four sides of the plane.

[0048] The thickness direction of the display device 1000 may be parallel to a third direction DR3 that intersects with the first direction DR1 and the second direction DR2. Therefore, the third direction DR3 can be used to distinguish the front and rear surfaces (or top and bottom surfaces) of each of the components constituting the display device 1000. In this description, the phrase "when viewed in a plane" can be interpreted as "when viewed in the thickness direction of the display device 1000" or "when viewed on the third direction DR3".

[0049] Figure 2 A simplified cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0050] Reference Figure 2 The display device 1000 may include a display panel 100 and an input sensor 200.

[0051] Display panel 100 can be a component that substantially generates an image. Display panel 100 can be an emitting display panel. For example, display panel 100 can be an organic light-emitting display panel, a quantum dot light-emitting display panel, or a micron-LED display panel. Alternatively, display panel 100 can be a light-receiving type display panel. For example, display panel 100 can be a liquid crystal display panel.

[0052] The input sensor 200 can be positioned on the display panel 100. The input sensor 200 can detect externally applied input. The external input can be user input. User input can include the user's body parts, light, heat, pen, pressure, or any other type of external input.

[0053] The input sensor 200 can be formed on the display panel 100 in a continuous process. In this case, it can be expressed as the input sensor 200 being directly positioned on the display panel 100. The phrase "directly positioned on" can mean that no component is positioned between the input sensor 200 and the display panel 100. For example, no adhesive component can be separately positioned between the input sensor 200 and the display panel 100.

[0054] According to some embodiments, the display device 1000 may further include a window positioned on the input sensor 200. The window may include an optically transparent material such as glass or plastic. The window may have a single-layer structure or a multi-layer structure.

[0055] Figure 3 A plan view illustrating a display panel according to some embodiments of the present invention is shown.

[0056] Reference Figure 3 An active region 100A and a peripheral region 100N may be defined on a display panel 100. The active region 100A may be an area activated by an electrical signal. For example, the active region 100A may be an area for displaying an image. The peripheral region 100N may be adjacent to and surround the active region 100A. The peripheral region 100N may include driver lines or driver circuitry for driving the active region 100A.

[0057] Figure 3 The display panel 100 is shown before assembly. During the assembly process, the curved region BA defined in the peripheral region 100N can be bent to have a certain curvature. Therefore, the components on and under the curved region BA can be arranged to face each other.

[0058] The through-hole 100T may be defined in the active region 100A of the display panel 100. The active region 100A may surround the through-hole 100T. However, the invention is not necessarily limited thereto. For example, a portion of the through-hole 100T may contact the active region 100A, and another portion of the through-hole 100T may contact the peripheral region 100N.

[0059] The through-hole 100T can be a space through which signals input to or output from the electronic module are transmitted. For example, the electronic module is a camera module.

[0060] The through-hole 100T can be defined by removing all or at least a portion of the components constituting the display panel 100. When viewed in a plane, the through-hole 100T can have a circular shape, an elliptical shape, or a polygonal shape including at least one curved edge, but embodiments of the invention are not limited to specific embodiments. For example, according to some embodiments of the invention, the through-hole 100T may be omitted.

[0061] The display panel 100 may include a substrate layer 100-1, a plurality of pixels 110, a plurality of signal lines 120, 130 and 140, a power pattern 150, a plurality of display pads 160, a plurality of sensing pads 170 and a plurality of protrusions 180.

[0062] The substrate layer 100-1 may include a glass substrate, an organic / inorganic composite substrate, or a synthetic resin film. The synthetic resin film may include a thermosetting resin. The substrate layer 100-1 may have a multilayer structure. For example, the substrate layer 100-1 may have a three-layer structure including a synthetic resin layer, an adhesive layer, and a synthetic resin layer. For example, the synthetic resin layer may be a polyimide resin layer, but the material of the synthetic resin layer is not specifically limited. The synthetic resin layer may include at least one selected from acrylic resins, methacrylic resins, polyisoprene, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and dinaphthalene-based resins.

[0063] The substrate layer 100-1 may have a portion of the active region 100A, referred to as the first region, and may also have another portion of the peripheral region 100N, referred to as the second region.

[0064] Signal lines 120, 130, and 140 can be connected to pixel 110 and can transmit electrical signals to pixel 110. As an example, Figure 3 The signal lines 120, 130, and 140 shown may include a data line 120, a scan line 130, and a power line 140. However, this is shown as an example, and according to some embodiments, for example, the signal lines 120, 130, and 140 may also include at least one selected from an initialization power line and a transmit control line, but are not necessarily limited to this according to embodiments of the invention.

[0065] Pixel 110 can be located in active region 100A. Figure 3 An exemplary magnification circuit diagram of one of a plurality of pixels 110 is shown. However, embodiments according to this disclosure are not limited to... Figure 3 The pixel circuitry of pixel 110 is shown in the diagram. For example, according to some embodiments, the pixel circuitry of pixel 110 may include additional or fewer components without departing from the spirit and scope of embodiments according to this disclosure.

[0066] Pixel 110 may include a first transistor 111, a second transistor 112, a capacitor 113, and a light-emitting element 114. However, this is only an example, and according to some embodiments, pixel 110 may include electronic components with various constructions and arrangements, but is not necessarily limited to this according to embodiments of the invention. For example, pixel 110 may include an equivalent circuit comprising seven transistors and a capacitor, and the equivalent circuit of pixel 110 may be modified in various forms.

[0067] The first transistor 111 can be a switching element that controls the on / off state of the pixel 110. In response to a scan signal transmitted via scan line 130, the first transistor 111 can transmit or block data signals transmitted via data line 120.

[0068] Capacitor 113 can be connected to the first transistor 111 and the power line 140. Capacitor 113 can be charged with an amount of charge corresponding to the difference between the data signal transmitted from the first transistor 111 and the first power signal applied to the power line 140.

[0069] The second transistor 112 can be connected to the first transistor 111, the capacitor 113, and the light-emitting element 114. In response to the amount of charge accumulated in the capacitor 113, the second transistor 112 can control the drive current flowing through the light-emitting element 114. The on-time of the second transistor 112 can be determined based on the amount of charge accumulated in the capacitor 113. During the on-time of the second transistor 112, the second transistor 112 can provide the light-emitting element 114 with a first power signal transmitted via the power line 140.

[0070] Based on the electrical signal, the light-emitting element 114 can generate light or control the amount of light. For example, the light-emitting element 114 may include an organic light-emitting element, a quantum dot light-emitting element, a micron LED element, or a nano LED element.

[0071] The light-emitting element 114 can be connected to the power supply terminal 115 and can be supplied with a power signal different from the first power signal supplied from the power supply line 140 (hereinafter referred to as the second power signal or ground voltage). The light-emitting element 114 can receive a drive current corresponding to the difference between the second power signal and the electrical signal supplied from the second transistor 112, and can subsequently generate light corresponding to the drive current.

[0072] Power pattern 150 can be positioned within the peripheral area 100N. Power pattern 150 can be electrically connected to power line 140. Although Figure 3 A single power cord 140 is shown, but power cords 140 can be provided in multiple forms, and multiple power cords 140 can all be electrically connected to power pattern 150.

[0073] Multiple protrusions 180 may be positioned within the peripheral region 100N and may surround at least a portion of the active region 100A. For example, each of the multiple protrusions 180 may surround all or at least a portion of the active region 100A. Each of the multiple protrusions 180 may have a closed curved shape or a partially open shape.

[0074] The plurality of protrusions 180 may include a first protrusion 181, a second protrusion 182, and a third protrusion 183. However, the number of the plurality of protrusions 180 is not limited thereto, and may be two or four or more.

[0075] Of the plurality of protrusions 180, the first protrusion 181 may be positioned closest to the active region 100A. The first protrusion 181, the second protrusion 182, and the third protrusion 183 may be arranged sequentially in a direction away from the active region 100A. The second protrusion 182 may surround at least a portion of the first protrusion 181. The third protrusion 183 may surround at least a portion of the second protrusion 182.

[0076] Display pad 160 may include a first pad 161 and a second pad 162. Multiple first pads 161 may be provided, and multiple first pads 161 may be connected to corresponding data lines 120. The second pad 162 may be electrically connected to a power line 140 via a power pattern 150. The first pad 161 may be part of the power pattern 150.

[0077] The display panel 100 can provide the pixels 110 with electrical signals provided externally via the display pads 160. In addition to the first pad 161 and the second pad 162, the display pads 160 may also include pads for receiving different electrical signals, but the embodiments of the present invention are not limited to specific embodiments.

[0078] Multiple sensing pads 170 can be electrically connected to the sensor, which will be discussed below (see Figure 4 The sensing electrode of 200) (see Figure 4 (210, 220). Among the plurality of sensing pads 170, some sensing pads 170 may be arranged such that these sensing pads 170 span the display pads 160 and are spaced apart from the other sensing pads 170. However, embodiments of the invention are not necessarily limited thereto, and the arrangement relationship between the sensing pads 170 and the display pads 160 can be varied.

[0079] The driver chip 190 can be mounted in the peripheral area 100N of the display panel 100. The driver chip 190 can be a timing control circuit in chip form. In this case, the data line 120 can be electrically connected to the first pad 161 through the driver chip 190. However, this is just an example, and the driver chip 190 can also be mounted on a film separate from the display panel 100. In this case, the driver chip 190 can be electrically connected to the display pad 160 through the film.

[0080] Figure 4 A plan view illustrating an input sensor according to some embodiments of the present invention is shown.

[0081] Reference Figure 4 An active region 200A and a peripheral region 200N can be defined on an input sensor 200. The active region 200A can be an area activated by an electrical signal. For example, the active region 200A can be an area for detecting input. The peripheral region 200N can be adjacent to and surround the active region 200A.

[0082] The through-hole 200T can be defined within the active region 200A of the input sensor 200. When viewed in a plane, the through-hole 200T can be connected to the display panel discussed above (see...). Figure 3 100) through hole (see Figure 3 The 100T overlaps. The through-hole 200T can be defined by removing all components that make up the input sensor 200. In some embodiments of the invention, the through-hole 200T may be omitted.

[0083] The input sensor 200 may include a substrate dielectric layer 200-1, a first sensing electrode 210, a second sensing electrode 220, and a sensing line 230. The first sensing electrode 210 and the second sensing electrode 220 may be located in an active region 200A, and the sensing line 230 may be located in a peripheral region 200N. The input sensor 200 may obtain information about external inputs by utilizing changes in the mutual capacitance between the first sensing electrode 210 and the second sensing electrode 220.

[0084] The first sensing electrode 210 may be arranged along a first direction DR1 and may each extend along a second direction DR2. The first sensing electrode 210 may include a first sensing pattern 211 and a first connecting pattern 212. The first connecting pattern 212 may electrically connect two adjacent first sensing patterns 211 to each other. Two adjacent first sensing patterns 211 may be connected to each other through two first connecting patterns 212, but this is not necessarily the case according to embodiments of the present invention.

[0085] The second sensing electrode 220 may be arranged along the second direction DR2 and may each extend along the first direction DR1. The second sensing electrode 220 may include a second sensing pattern 221 and a second connecting pattern 222. The second connecting pattern 222 may electrically connect two adjacent second sensing patterns 221 to each other. Two first connecting patterns 212 may be insulated from and intersect one second connecting pattern 222.

[0086] Figure 4 Exemplary shapes and arrangements of the first sensing electrode 210 and the second sensing electrode 220 are shown, but the embodiments of the present invention are not limited to these. Figure 4 The exemplary shape and arrangement of the first sensing electrode 210 and the second sensing electrode 220 are shown in the figure.

[0087] Sensing line 230 can be electrically connected to the corresponding sensing pad through a contact hole (see...). Figure 3 (170). The sensing line 230 may include a first sensing line 231 and a second sensing line 232.

[0088] The first sensing line 231 can be electrically connected to the corresponding first sensing electrode 210. The second sensing line 232 can be electrically connected to the corresponding second sensing electrode 220. One of the second sensing lines 232 can be connected to the left side of one of the second sensing electrodes 220, and the other of the second sensing lines 232 can be connected to the right side of the other of the second sensing electrodes 220. The connection relationships between the first sensing line 231 and the first sensing electrode 210, and between the second sensing line 232 and the second sensing electrode 220, are not limited to... Figure 4 The connection relationships are shown in the figure.

[0089] Figure 5A An enlarged plan view of a display device according to some embodiments of the present invention is shown. Figure 5B It shows Figure 5A A magnified plan view of a portion of the image.

[0090] Figure 5A Partially shown with Figure 3 AA' or Figure 4 The display device corresponding to area BB', and Figure 5B It shows Figure 5A A magnified view of area CC'.

[0091] Reference Figure 5A and Figure 5BThe power pattern 150 may include a first pattern portion 151 extending along a first direction DR1 and a second pattern portion 152 protruding from the first pattern portion 151 along a second direction DR2. The second pattern portion 152 may include a first branch pattern portion 153 that at least partially overlaps with the sensing line 230 and a second branch pattern portion 154 that does not overlap with the sensing line 230.

[0092] Opening 155 may be defined within power pattern 150. Opening 155 can be provided by removing a portion of power pattern 150. Opening 155 may expose components located below power pattern 150. Therefore, opening 155 can serve as a path through which gases generated by components located below power pattern 150 are vented. Thus, it is possible to prevent problems caused by gases, and a detailed description of opening 155 will be given below.

[0093] When viewed in a plane, the opening 155 can have a quadrilateral shape, such as a square or a rectangle, but is not necessarily limited to this according to embodiments of the invention. For example, the opening 155 can have a circular, elliptical, or polygonal shape.

[0094] When viewed in a plane, the opening 155 may not overlap with the sensing line 230. For example, when viewed on a third-direction DR3, the opening 155 may be spaced apart from the sensing line 230.

[0095] The sensing line 230 can be arranged to overlap with the power supply pattern 150 but not with the opening 155. Since the power supply pattern 150 is supplied with a constant voltage, it can shield the sensing line 230 from noise signals. Therefore, it is possible to prevent or reduce sensitivity failures caused by noise signals.

[0096] The minimum distance 301 between the opening 155 and the sensing line 230 can range from about 58.4 μm to about 1300 μm. When the minimum distance 301 is greater than about 1300 μm, the gas generated below the power pattern 150 cannot be adequately discharged through the opening 155.

[0097] The opening 155 may have a width 302 of approximately 15 μm in the first direction DR1 and a width 303 of approximately 15 μm in the second direction DR2, and the interval or spacing 304 between adjacent openings 155 may be approximately 40 μm. The values ​​described above are merely examples of design specifications and are not necessarily limited to embodiments of the invention.

[0098] In some embodiments of the invention, each of the second pattern portions 152 may have a width equal to or less than about 1300 μm. For example, each of the first branch pattern portion 153 and the second branch pattern portion 154 may have a maximum width equal to or less than about 1300 μm in the first direction DR1. In this case, gas generated by the component positioned below the power pattern 150 can be discharged through the space between the second pattern portions 152. Alternatively, a value equal to or less than about 1300 μm may be given as the width of the second branch pattern portion 154 in which the opening 155 is not defined, and the width of the first branch pattern portion 153 may not be limited.

[0099] Figure 6 A cross-sectional view of a display device according to some embodiments of the present invention is shown.

[0100] Reference Figure 6 The display panel 100 may include multiple dielectric layers, semiconductor patterns, conductive patterns, and signal lines. Dielectric layers, semiconductor layers, and conductive layers can be formed using coating or deposition processes. Subsequently, photolithography can be used to selectively pattern the dielectric layers, semiconductor layers, and conductive layers. Through the processes described above, semiconductor patterns, conductive patterns, and signal lines, including those in the circuit element layer 100-2 and the display element layer 100-3, can be provided on the substrate layer 100-1. Thereafter, an encapsulation layer 100-4 can be formed to cover the display element layer 100-3.

[0101] The substrate layer 100-1 may include a synthetic resin film. The synthetic resin film may include a thermosetting resin. The substrate layer 100-1 may have a multilayer structure. For example, the substrate layer 100-1 may have a three-layer structure including a synthetic resin layer, an adhesive layer, and a synthetic resin layer. For example, the synthetic resin layer may be a polyimide resin layer, but the material of the synthetic resin layer is not specifically limited. The synthetic resin layer may include at least one selected from acrylic resins, methacrylic resins, polyisoprene, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and dinaphthalene-based resins. The substrate layer 100-1 may include a glass substrate or an organic / inorganic composite substrate.

[0102] At least one inorganic layer may be formed on the top surface of the substrate layer 100-1. The inorganic layer may include at least one selected from alumina, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed in multiple layers. The multiple inorganic layers may constitute a barrier layer and / or a buffer layer. In some embodiments, the display panel 100 is shown as including a buffer layer BFL.

[0103] The buffer layer (BFL) improves the bonding strength between the substrate layer 100-1 and the semiconductor pattern. The buffer layer (BFL) may include a silicon oxide layer and a silicon nitride layer. The silicon oxide layer and the silicon nitride layer may be stacked alternately.

[0104] The semiconductor pattern is positioned on the buffer layer BFL. The semiconductor pattern may include polycrystalline silicon. However, embodiments of the invention are not limited thereto, and the semiconductor pattern may include amorphous silicon or metal oxide.

[0105] Figure 6 Only a portion of the semiconductor pattern is shown; the semiconductor pattern can also be arranged in other areas. The semiconductor pattern can be specifically arranged in pixels (see...). Figure 3 Above (110). Semiconductor patterns can have different electrical properties depending on whether the semiconductor pattern is doped. Semiconductor patterns can include doped and undoped regions. Doped regions can be doped with n-type or p-type impurities. A p-type transistor includes a doped region implanted with p-type impurities.

[0106] Doped regions possess conductivity greater than that of undoped regions, and are primarily used as electrodes or signal lines. Undoped regions essentially correspond to the active region (or channel region) of a transistor. For example, a portion of a semiconductor pattern can be the active region of a transistor, another portion can be the source or drain of a transistor, and yet another portion can be a connecting electrode or a signal line (SCL).

[0107] like Figure 6 As shown, the first transistor 111 may include a source S1, an active region A1, and a drain D1 formed from a semiconductor pattern, and the second transistor 112 may include a source S2, an active region A2, and a drain D2 formed from a semiconductor pattern. When viewed in cross-section, the source S1 and drain D1 extend from the active region A2 in opposite directions, and similarly, the source S2 and drain D2 extend from the active region A1 in opposite directions. Figure 6 The connection signal line SCL formed from the semiconductor pattern is partially shown. According to some embodiments, when viewed in a plane (e.g., in a direction orthogonal or perpendicular to the plane of the display surface of the display device), the connection signal line SCL can be connected to the drain D2 of the second transistor 112.

[0108] The first dielectric layer 10 is positioned on the buffer layer BFL. The first dielectric layer 10 can be used in conjunction with multiple pixels (see...). Figure 3The first dielectric layer 10 can overlap and cover the semiconductor pattern. The first dielectric layer 10 can be an inorganic layer and / or an organic layer, and can have a single-layer or multi-layer structure. The first dielectric layer 10 can include at least one selected from aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. In some embodiments, the first dielectric layer 10 can be a single-layer silicon oxide layer. Similar to the first dielectric layer 10, the dielectric layers of the circuit element layers 100-2 can be inorganic layers and / or organic layers, and can have a single-layer or multi-layer structure. The inorganic layer can include at least one selected from the materials described above.

[0109] Gates G1 and G2 are positioned on the first dielectric layer 10. Gates G1 and G2 may each be part of a metal pattern. Gates G1 and G2 overlap correspondingly with active regions A1 and A2. Gates G1 and G2 may be used as masks in a process of doping semiconductor patterns.

[0110] The second dielectric layer 20 can be positioned on the first dielectric layer 10 and can cover gates G1 and G2. The second dielectric layer 20 is commonly associated with the pixel (see...). Figure 3 (110) overlap. The second dielectric layer 20 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. In some embodiments, the second dielectric layer 20 may be a single-layer silicon oxide layer.

[0111] The upper electrode UE can be positioned on the second dielectric layer 20. The upper electrode UE can overlap with the gate G2 of the second transistor 112. The upper electrode UE can be part of a metal pattern. A portion of the gate G2 and the upper electrode UE covering it can define a capacitor (see...). Figure 3 (113).

[0112] The third dielectric layer 30 can be positioned on the second dielectric layer 20 and can cover the upper electrode UE. In some embodiments, the third dielectric layer 30 can be a single layer of silicon oxide. The first connection electrode CNE1 can be positioned on the third dielectric layer 30. The first connection electrode CNE1 can be coupled to the connection signal line SCL through a contact hole CNT-1 that penetrates the first dielectric layer 10, the second dielectric layer 20 and the third dielectric layer 30.

[0113] The fourth dielectric layer 40 can be positioned on the third dielectric layer 30. The fourth dielectric layer 40 can be a single layer of silicon oxide. The fifth dielectric layer 50 can be positioned on the fourth dielectric layer 40. The fifth dielectric layer 50 can be an organic layer. The second connection electrode CNE2 can be positioned on the fifth dielectric layer 50. The second connection electrode CNE2 can be coupled to the first connection electrode CNE1 through a contact hole CNT-2 that penetrates the fourth dielectric layer 40 and the fifth dielectric layer 50.

[0114] A sixth dielectric layer 60 may be positioned on the fifth dielectric layer 50 and may cover the second connection electrode CNE2. The sixth dielectric layer 60 may be an organic layer. A first electrode AE ​​is positioned on the sixth dielectric layer 60. The first electrode AE ​​may be connected to the second connection electrode CNE2 through a contact hole CNT-3 penetrating the sixth dielectric layer 60. An opening 70-OP is defined in the pixel defining layer 70. The opening 70-OP of the pixel defining layer 70 exposes at least a portion of the first electrode AE.

[0115] Active region (see) Figure 3 The 100A may include an emitting region PXA and a non-emitting region NPXA adjacent to the emitting region PXA. The non-emitting region NPXA may be adjacent to and surround the emitting region PXA. In some embodiments, the first electrode AE ​​has a portion exposed to the opening 70-OP, and the emitting region PXA is defined as that portion corresponding to the first electrode AE.

[0116] The hole control layer (HCL) can be arranged together in the emitter region (PXA) and the non-emitter region (NPXA). The HCL may include a hole transport layer and may also include a hole injection layer. The emitter layer (EML) can be positioned on the HCL. The EML can be positioned in the region corresponding to the opening 70-OP. For example, the EML can be formed on a pixel (see...). Figure 3 Each of the 110) above.

[0117] The electronic control layer (ECL) can be positioned on the emitter layer (EML). The ECL may include an electron transport layer and may also include an electron injection layer. An open mask can be used so that the hole control layer (HCL) and the ECL are formed together over multiple pixels (see...). Figure 3 The second electrode CE can be positioned on the electronic control layer ECL. The second electrode CE has a monolithic shape and is positioned on multiple pixels (see 110). Figure 3 (110) on.

[0118] The capping layer 80 can be positioned on and in contact with the second electrode CE. The capping layer 80 may include an organic material. The capping layer 80 can protect the second electrode CE from subsequent processes such as sputtering and can improve the emission efficiency of the light-emitting element 114. The capping layer 80 may have a refractive index greater than that of the first inorganic layer 91, which will be discussed.

[0119] Encapsulation layer 100-4 can be positioned on display element layer 100-3. Encapsulation layer 100-4 can be positioned on pixels (see...) Figure 3 On (110), and can cover or encapsulate pixels (see 110) Figure 3 (110).

[0120] The encapsulation layer 100-4 may include a first inorganic layer 91, an organic layer 92, and a second inorganic layer 93. The first inorganic layer 91 and the second inorganic layer 93 protect the display element layer 100-3 from moisture and / or oxygen, and the organic layer 92 protects the display element layer 100-3 from foreign matter such as dust particles. The first inorganic layer 91 and the second inorganic layer 93 may each be one of a silicon nitride layer, a silicon oxynitride layer, and a silicon oxide layer. In some embodiments of the invention, the first inorganic layer 91 and the second inorganic layer 93 may include a titanium oxide layer or an aluminum oxide layer. The organic layer 92 may include an acrylic organic layer, but is not necessarily limited to this according to embodiments of the invention.

[0121] In some embodiments of the present invention, a capping layer 80 and a first inorganic layer 91 may be provided, for example, an inorganic layer of LiF layer between the capping layer 80 and the first inorganic layer 91. The LiF layer can improve the emission efficiency of the light-emitting element 114.

[0122] The input sensor 200 may include a substrate dielectric layer 200-1, a first conductive layer 200-2, a sensing dielectric layer 200-3, a second conductive layer 200-4, and a cover dielectric layer 200-5. The input sensor 200 can be formed in a continuous process after the display panel 100 is formed. However, embodiments of the present invention are not necessarily limited thereto.

[0123] The substrate dielectric layer 200-1 can be directly positioned on the display panel 100. For example, the substrate dielectric layer 200-1 can be in direct contact with the second inorganic layer 93. The substrate dielectric layer 200-1 can have a single-layer structure or a multi-layer structure. Alternatively, the substrate dielectric layer 200-1 can be omitted.

[0124] The first conductive layer 200-2 and the second conductive layer 200-4 may each have a single-layer structure or a multilayer structure in which multiple conductive layers are stacked along a third direction DR3. The single-layer conductive layer may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum, or alloys thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium zinc tin oxide (IZTO). Additionally or alternatively, the transparent conductive layer may include metal nanowires, graphene, or a conductive polymer such as PEDOT.

[0125] A multilayer conductive layer may include multiple metal layers. These multiple metal layers can form, for example, a three-layer structure of titanium / aluminum / titanium. A multilayer conductive layer may also include at least one metal layer and at least one transparent conductive layer.

[0126] The first conductive layer 200-2 and the second conductive layer 200-4 may each include patterns constituting sensing electrodes. For example, the first conductive layer 200-2 may include a first connection pattern 212, and the second conductive layer 200-4 may include a first sensing pattern 211, a second sensing pattern 221, and a second connection pattern 222. Additionally, the first conductive layer 200-2 and the second conductive layer 200-4 may each include sensing lines (see...). Figure 4 (230). For example, the first conductive layer 200-2 may include sensing lines (see 230). Figure 4 One or more of (230), and the second conductive layer 200-4 may include sensing lines (see 230). Figure 4 One or more of the other 230).

[0127] The sensing dielectric layer 200-3 can be positioned between the first conductive layer 200-2 and the second conductive layer 200-4, and can cover the first conductive layer 200-2. A portion of the second conductive layer 200-4 can be electrically connected to a portion of the first conductive layer 200-2 through contact holes penetrating the sensing dielectric layer 200-3. The covering dielectric layer 200-5 can be positioned on the sensing dielectric layer 200-3 and can cover the second conductive layer 200-4.

[0128] The sensing dielectric layer 200-3 and the covering dielectric layer 200-5 may each include an inorganic layer or both may include inorganic layers. The inorganic layer may include at least one selected from alumina, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0129] The sensing dielectric layer 200-3 and the covering dielectric layer 200-5 may each include an organic layer or both may include organic layers. The organic layer may include at least one selected from acrylic resins, methacrylic resins, polyisoprene, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyimide resins, polyamide resins, and dinaphthalene-based resins.

[0130] Figure 7 A cross-sectional view of a display device according to some embodiments of the present invention is shown. Figure 8 A cross-sectional view of a display device according to some embodiments of the present invention is shown. Figure 7 and Figure 8 A cross-sectional view is shown of the area where the power pattern 150, the first protrusion 181, the second protrusion 182, and the third protrusion 183 are located. Figure 7 Depicting along Figure 5A The cross-sectional view taken by line I-I', and Figure 8 Depicting along Figure 5A The cross-sectional view taken from line II-II'.

[0131] Reference Figure 5A , Figure 7 and Figure 8 The first protrusion 181, the second protrusion 182, and the third protrusion 183 can be arranged to be spaced apart from each other. The first protrusion 181, the second protrusion 182, and the third protrusion 183 can be referred to as the first dam, the second dam, and the third dam, respectively.

[0132] When organic monomers are printed to form organic layer 92, the first protrusion 181, the second protrusion 182, and the third protrusion 183 can be used to prevent or reduce the overflow of organic monomers.

[0133] Each of the first protrusion 181, the second protrusion 182, and the third protrusion 183 may have a stacked structure. For example, the first protrusion 181 may include a first protrusion portion 181a and a second protrusion portion 181b stacked on the first protrusion portion 181a, the second protrusion 182 may include a first protrusion portion 182a and a second protrusion portion 182b stacked on the first protrusion portion 182a, and the third protrusion 183 may include a first protrusion portion 183a, a second protrusion portion 183b stacked on the first protrusion portion 183a, and a third protrusion portion 183c stacked on the second protrusion portion 183b.

[0134] The first protruding portion 183a may include the fifth dielectric layer (see...). Figure 6 The material is the same as that used to form the fifth dielectric layer (see 50), and can be the same material used to form the fifth dielectric layer (see 50). Figure 6 The first protrusion 183a may comprise an organic material. The first protrusion 181a, the first protrusion 182a, and the second protrusion 183b may comprise a layer formed in the same process as the sixth dielectric layer (see 50). Figure 6 The material is the same as that used to form the sixth dielectric layer (see 60), and can be the same material used to form the sixth dielectric layer (see 60). Figure 6 The layer is formed in the same process as (see 60). The second protrusion 181b, the second protrusion 182b, and the third protrusion 183c may include a pixel-defining layer (see 60). Figure 6 The material of 70) is the same as that used to form the pixel-defining layer (see Figure 6 The layer formed in the same process as 70).

[0135] A portion of the power pattern 150 may be positioned below the first protrusion 181 and the second protrusion 182, and another portion of the power pattern 150 may be positioned between the first protrusion 183a and the second protrusion 183b. The first protrusion 181 and the second protrusion 182 may each be referred to as additional protrusions, and the third protrusion 183 may simply be referred to as a protrusion. Additionally, another portion of the power pattern 150 may be referred to as an overlapping portion 150OP. The overlapping portion 150OP may cover a portion of the first protrusion 183a.

[0136] The sensing line 230 may extend in a direction intersecting the extension direction of each of the first protrusion 181, the second protrusion 182, and the third protrusion 183. The sensing line 230 may be positioned on the first protrusion 181, the second protrusion 182, and the third protrusion 183, and may each have a twisted or curved shape (e.g., following the contour of the curved surface of the layer and element beneath the sensing line 230).

[0137] Unlike some embodiments of the invention, when opening 155 is not provided in the power pattern 150, gas generated by the first protrusion 183a may be confined between the first protrusion 183a and the power pattern 150. In this case, the gas may cause a gap between the first protrusion 183a and the power pattern 150. The gap may be attributed to an increase in height and shape deformation of the third protrusion 183, and the deformation of the third protrusion 183 may induce defects such as breaks in the sensing line 230. According to some embodiments of the invention, opening 155 may be defined on the overlapping portion 150OP. Gas generated from the first protrusion 183a can be discharged to the outside through opening 155. Therefore, shape deformation of the third protrusion 183 can be prevented or reduced, and thus the sensing line 230 may be free from defects such as breaks in the line.

[0138] Figure 9 An enlarged plan view of a display device according to some embodiments of the present invention is shown.

[0139] Reference Figure 9 The opening 156 may also be defined in the second branch pattern portion 154 of the power pattern 150. The opening 156 can be provided by removing a portion of the power pattern 150. The opening 156 can expose components positioned below the power pattern 150. Therefore, the opening 156 can serve as a path through which gases generated by components positioned below the power pattern 150 are discharged. Thus, it may be possible to prevent or reduce problems caused by gases.

[0140] Based on the above discussion, the overlapping portion of the power supply pattern can be positioned between the first and second protruding portions, and the opening can be defined within the overlapping portion of the power supply pattern. Gas generated from the first protruding portion can be discharged to the outside through the opening defined in the power supply pattern. Therefore, it is possible to suppress delamination of the second protruding portion and thus prevent or reduce the breakage of the sensing line on the second protruding portion.

[0141] Furthermore, the sensing line can overlap with the power supply pattern but not with the opening. Since the power supply pattern is supplied with a constant voltage, it can shield against noise signals that could affect the sensing line. Therefore, it is possible to prevent or reduce sensitivity failures caused by noise signals.

[0142] Although embodiments have been described with reference to several illustrative examples, those skilled in the art will understand that various changes in form and detail may be made without departing from the spirit and scope of the invention as set forth in the following claims. Therefore, the scope of the invention is not limited to the embodiments and examples described above, but rather to the following claims and their equivalents.

Claims

1. A display device, wherein, The display device includes: The substrate layer has a first region and a second region adjacent to the first region; Multiple pixels on the first region of the substrate layer; An encapsulation layer is applied to the plurality of pixels; Multiple sensing electrodes are located on the encapsulation layer and overlap with the first region of the substrate layer; The power cable is configured to power the plurality of pixels; A power pattern is located in the second region and is electrically connected to the power line; Multiple sensing lines, electrically connected to the multiple sensing electrodes and overlapping the second region of the substrate layer; and The protrusion, on the second region, surrounds at least a portion of the first region and includes a first protruding portion and a second protruding portion on the first protruding portion. The power pattern includes an overlapping portion between the first protruding portion and the second protruding portion, the overlapping portion having at least one opening. Wherein, a portion of the plurality of sensing lines overlaps with the overlapping portion of the power supply pattern, the plurality of sensing lines do not overlap with the at least one opening, and in a plan view, the plurality of sensing lines are spaced apart from the at least one opening in a first direction. The portion of the plurality of sensing lines has a shape that is curved due to the shape of the second protruding portion. Wherein, the protruding portion overlapping the power supply pattern extends along the first direction, and Wherein, a portion of the plurality of sensing lines extends along a second direction intersecting the first direction.

2. The display device according to claim 1, wherein, A portion of each of the plurality of sensing lines overlaps with the power supply pattern.

3. The display device according to claim 1, wherein, The power pattern includes: a first pattern portion extending along the first direction; and a plurality of second pattern portions protruding from the first pattern portion along the second direction. The plurality of second pattern portions include: a first branch pattern portion that at least partially overlaps with the plurality of sensing lines; and a second branch pattern portion that does not overlap with the plurality of sensing lines.

4. The display device according to claim 3, wherein, The opening is defined in each of the first branch pattern portion and the second branch pattern portion.

5. The display device according to claim 3, wherein, The opening is defined in the first branch pattern portion and not in the second branch pattern portion.

6. The display device according to claim 3, wherein, The overlapping portion includes a portion of each of the plurality of second pattern portions.

7. The display device according to claim 3, wherein, Each of the plurality of second pattern portions has a width equal to or less than 1300 μm in the first direction.

8. The display device according to claim 1, wherein, In the plan view, the minimum distance between the opening and the plurality of sensing lines is equal to or greater than 58.4 μm.

9. The display device according to claim 1, wherein, The plurality of sensing lines are on the protrusion, and Each of the plurality of sensing lines extends in a direction intersecting the protruding extension direction.

10. The display device according to claim 1, wherein, Each of the plurality of sensing lines that overlaps with the protrusion has a twisted shape.

11. The display device according to claim 1, wherein, The display device further includes: an additional protrusion on the second region and closer to the first region than the protrusion itself. A portion of the power pattern is located beneath the additional protrusion.

12. The display device according to claim 11, wherein, The additional protrusion and the second protrusion are made of the same material.

13. The display device according to claim 10, wherein, The opening is provided as a plurality of openings. The spacing between adjacent openings in the plurality of openings is 40 μm, and Each of the plurality of openings has a quadrilateral shape.

14. The display device according to claim 1, wherein, The first protruding portion includes organic material.

15. A display device, wherein, The display device includes: The display panel has an active area and a peripheral area; and Input sensors, directly on the display panel. The display panel includes: Multiple pixels in the active region; An encapsulation layer on the plurality of pixels; a protrusion in the peripheral region, the protrusion surrounding at least a portion of the active region and including a first protrusion portion and a second protrusion portion on the first protrusion portion; Power lines, configured to power the plurality of pixels; and A power pattern, located in the peripheral region and electrically connected to the power line, includes an overlapping portion between the first protrusion and the second protrusion, the overlapping portion having at least one opening. The input sensor includes: Multiple sensing electrodes, on the encapsulation layer and in the active region; and Multiple sensing lines are located in the peripheral region and electrically connected to the multiple sensing electrodes, wherein each of the multiple sensing lines overlapping the protrusion has a twisted shape corresponding to the shape of the protrusion. Wherein, a portion of the plurality of sensing lines overlaps with the overlapping portion of the power supply pattern, the plurality of sensing lines do not overlap with the at least one opening, and in a plan view, the plurality of sensing lines are spaced apart from the at least one opening in a first direction. Wherein, the protruding portion overlapping the power supply pattern extends along the first direction, and Wherein, a portion of the plurality of sensing lines extends along a second direction intersecting the first direction.

16. The display device according to claim 15, wherein The power supply pattern includes a first branch pattern portion and a second branch pattern portion, the first branch pattern portion and the second branch pattern portion extending along the second direction and between the first protruding portion and the second protruding portion, and The opening is provided in at least one of the first branch pattern portion and the second branch pattern portion.

17. The display device according to claim 16, wherein At least a portion of the plurality of sensing lines are on the first branch pattern portion, and The opening is defined within the first branch pattern portion.

18. A display device, wherein, The display device includes: Multiple pixels in the active region; The protrusion surrounds at least a portion of the active region and includes a first protrusion and a second protrusion on the first protrusion. A power pattern configured to transmit power to the plurality of pixels and between the first protrusion and the second protrusion; An encapsulation layer is applied to the plurality of pixels; Multiple sensing electrodes, on the encapsulation layer and in the active region; and Multiple sensing lines, electrically connected to the multiple sensing electrodes and spaced apart from the power pattern across the second protrusion, are provided. The power pattern has at least one opening that exposes a portion of the first protruding portion, and Each of the plurality of sensing lines overlapping the protrusion has a twisted shape corresponding to the shape of the protrusion. In this configuration, a portion of the plurality of sensing lines overlaps with the power supply pattern, the plurality of sensing lines do not overlap with the at least one opening, and in a plan view, the plurality of sensing lines are spaced apart from the at least one opening in a first direction. Wherein, the protruding portion overlapping the power supply pattern extends along the first direction, and Wherein, a portion of the plurality of sensing lines extends along a second direction intersecting the first direction.

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