Display device including touch sensor and method of manufacturing the same

Abstract

A display device is provided, comprising: a substrate having an active area and an inactive area; a planarization film disposed above the substrate; an anode electrode disposed on the planarization film, the anode electrode including a first hole in the inactive area; a bank disposed on the anode electrode; a cathode electrode disposed on the bank; an encapsulation layer disposed on the cathode electrode; and a touch sensor disposed on the encapsulation layer, the touch sensor including a touch line in the inactive area. Here, the first hole may be disposed so as not to overlap with the touch line.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2020-0172880 filed in the Korean Intellectual Property Office on December 11, 2020, and the entire disclosure of this patent application is incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a display device including a touch sensor and a method of manufacturing the display device. Background Art

[0004] As information-oriented society develops, various demands for display devices that display images increase. To meet such demands, various display devices such as liquid crystal display (LCD) devices, electroluminescent display (ELD) devices, etc. have been developed and used.

[0005] ELD devices include: quantum dot light-emitting display devices having quantum dots (QD), inorganic light-emitting display devices, organic light-emitting display devices, etc.

[0006] Among these display devices, the ELD device has the characteristics of short response time, wide viewing angle, excellent color gamut, etc. In addition, the ELD device has an advantage that it can be implemented as a thin package or structure.

[0007] Recently, display devices increasingly use touch sensors that sense touch. In such display devices, when a user touches the surface of a screen displaying an image while viewing the image, the display device performs a related operation or provides visual feedback in response to the touch input detected by the touch sensor, allowing the user to intuitively operate the display device or other electronic devices using such a display device. In addition, display devices are gradually becoming thinner for the sake of aesthetics or convenience of use. Summary of the invention

[0008] However, as the thickness of the display device becomes smaller, the distance between the touch sensor and the signal line for displaying an image in the display device becomes smaller. When the distance between the touch sensor and the signal line becomes smaller, the touch sensor recognizes the signal and / or voltage transmitted through the signal line as noise, thereby incorrectly detecting the corresponding touch input due to erroneous recognition.

[0009] In addition, the display device requires the formation of a plurality of stacked films, and outgassing may occur due to residual moisture in the process of manufacturing the display device. For this reason, lifting may occur between the plurality of films, which may cause defects in the display device.

[0010] Accordingly, embodiments of the present disclosure are directed to a display device including a touch sensor and a method of manufacturing the same that substantially obviate one or more problems due to limitations and disadvantages of the related art.

[0011] One aspect of the present disclosure provides a display device including a touch sensor and a method of manufacturing the display device including the touch sensor, which can prevent a touch sensor from incorrectly detecting a touch by shielding the touch sensor and corresponding signal lines and prevent defects caused in the display device due to exhaust.

[0012] Other features and aspects are described in the subsequent description, which may be partially understood from the description or known by practicing the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by the structures specifically pointed out in the specification, claims and drawings or their derivative structures.

[0013] To achieve these and other aspects of the inventive concept, as specifically and broadly described, a display device includes: a substrate having an active area and an inactive area; a planarization film disposed above the substrate; an anode electrode disposed on the planarization film, the anode electrode including a first hole in the inactive area; a bank disposed on the anode electrode; a cathode electrode disposed on the bank; an encapsulation layer disposed on the cathode electrode; and a touch sensor disposed on the encapsulation layer, the touch sensor including a touch line in the inactive area. Here, the first hole may be disposed so as not to overlap with the touch line.

[0014] In another aspect, a method for manufacturing a display device includes: providing a planarization film over a substrate having an active area and an inactive area; providing an anode electrode on the planarization film, the anode electrode including a first hole in the inactive area; providing a bank on the anode electrode; providing a cathode electrode on the bank; providing an encapsulation layer on the cathode electrode; and providing a touch sensor on the encapsulation layer, the touch sensor including a touch line in the inactive area. Here, the first hole may be provided so as not to overlap with the touch line.

[0015] According to aspects of the present disclosure, a display device including a touch sensor and a method of manufacturing the display device capable of more accurately checking a touch may be provided by preventing a touch signal from being distorted due to noise.

[0016] Furthermore, according to aspects of the present disclosure, a display device including a touch sensor and a method of manufacturing the display device capable of preventing defects caused in the display device due to moisture may be provided.

[0017] It is to be understood that both the foregoing general description and the following detailed description are illustrative and exemplary and are intended to provide further explanation of the inventive concepts as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are included herein to provide a further understanding of the disclosure, and are incorporated in and constitute a part of the present application, illustrating embodiments of the disclosure and explaining various principles together with the description. In the drawings:

[0019] Figure 1 illustrates a system configuration of a display device according to aspects of the present disclosure;

[0020] Figure 2 is a circuit diagram illustrating a pixel used in a display device according to aspects of the present disclosure;

[0021] Figure 3 It illustrates that a gate signal generating circuit is provided on a display panel in a display device according to aspects of the present disclosure;

[0022] Figure 4 According to the first embodiment, Figure 3 A cross-sectional view taken along line II';

[0023] Figure 5 Illustrated according to various aspects of the present disclosure Figure 3 The layout of the X area;

[0024] Figure 6 According to the second embodiment, Figure 3 A cross-sectional view taken along line II';

[0025] 7A to 7C Illustrated according to various aspects of the present disclosure Figure 3 The layout of the X area;

[0026] Figure 8 is a flowchart illustrating a method of manufacturing a display device including a touch sensor according to aspects of the present disclosure. DETAILED DESCRIPTION

[0027] The advantages and features of the present disclosure and the methods for achieving these advantages and features are described in detail below and in the accompanying drawings. Figure 1 The embodiments of the present disclosure described in detail above will become apparent. However, the present disclosure is not limited to the embodiments described below, but can be implemented in various different forms. The following embodiments are provided only to fully disclose the present disclosure and to enable those skilled in the art to understand the scope of the present disclosure, and the present disclosure is limited only by the scope of the attached claims.

[0028] In addition, the shapes, sizes, ratios, angles, quantities, etc. shown in the accompanying drawings for describing the exemplary embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto. Similar reference numerals generally represent similar elements throughout this application. In addition, in the following description of the present disclosure, when it is determined that the detailed description of the known functions and structures combined herewith will make the subject matter in some embodiments of the present disclosure unclear, these detailed descriptions will be omitted. Terms such as "including", "having", "comprising", "consisting of" and "consisting of" used herein are generally intended to allow the addition of other components, unless these terms use the term "only". Any singular form used herein is intended to include plural forms, unless otherwise expressly stated.

[0029] When interpreting any element or feature of the embodiments of the present disclosure, any size and relative size of layers, regions, and zones should be considered to include a tolerance or error range even if not explicitly described.

[0030] Spatially relative terms such as “on,” “over,” “above,” “under,” “below,” “under,” “lower,” “upper,” “near,” “close,” “adjacent,” etc. may be used herein to describe the relationship between one element or feature shown in the figures and other elements or features, and should be interpreted as that one or more elements may be further “interposed” between these elements, unless these terms use terms such as “directly,” “only,” etc.

[0031] Time relative terms such as “after”, “subsequently”, “next”, “before”, etc. used herein to describe the temporal relationship between events, operations, etc. are generally intended to refer to events, situations, circumstances, operations, etc. that do not occur continuously, unless terms such as “immediately” are used.

[0032] When discussing embodiments involving signal flow, for example, embodiments in which a signal is transmitted from node A to node B may include embodiments in which the signal is transmitted from node A to node B via another node unless terms such as "directly" or "only" are used.

[0033] When terms such as "first", "second", etc. are used herein to describe various elements or components, it should be considered that these elements or components are not limited thereto. These terms are only used herein to distinguish one element from other elements. Therefore, within the technical concept of the present disclosure, the first element mentioned below may be the second element.

[0034] The elements or features of each exemplary embodiment of the present disclosure may be combined or coupled with each other in part or in whole and may be technically interconnected and operated in various ways as can be fully understood by those skilled in the art, and each exemplary embodiment may be implemented independently or in relation to each other.

[0035] A display device according to one aspect of the present disclosure includes: a substrate having an active area and an inactive area; a planarization film disposed above the substrate; an anode electrode disposed on the planarization film, the anode electrode including a first hole in the inactive area; a bank disposed on the anode electrode; a cathode electrode disposed on the bank; an encapsulation layer disposed on the cathode electrode; and a touch sensor disposed on the encapsulation layer, the touch sensor including a touch line in the inactive area. Here, the first hole may be disposed so as not to overlap with the touch line.

[0036] In the display device, the anode electrode may include a second hole in the non-active area, the second hole having a smaller size than the first hole, and the second hole may be disposed to overlap the touch line.

[0037] The touch line of the display device may include a plurality of touch signal lines, and the first hole may be provided between the plurality of touch signal lines.

[0038] In the inactive area of ​​the substrate of the display device, a gate signal generating circuit may be disposed below the planarizing film, and the cathode electrode and the anode electrode may be disposed to overlap with the gate signal generating circuit.

[0039] The first hole of the display device may be disposed to overlap the gate signal generating circuit.

[0040] The encapsulation layer of the display device may include a first inorganic film, a second inorganic film, and an organic film disposed between the first inorganic film and the second inorganic film.

[0041] The first hole of the display device may be provided in a region where the planarization film and the bank contact each other.

[0042] According to another aspect of the present disclosure, a method for manufacturing a display device is provided, comprising: setting a planarization film above a substrate having an effective area and an inactive area; setting an anode electrode on the planarization film, the anode electrode including a first hole in the inactive area; setting a dam on the anode electrode; setting a cathode electrode on the dam; setting an encapsulation layer on the cathode electrode; and setting a touch sensor on the encapsulation layer, the touch sensor including a touch line in the inactive area.

[0043] Here, the first hole may be provided so as not to overlap with the touch line.

[0044] In the method of manufacturing the display device, the anode electrode may include a second hole in the non-active area, the second hole having a smaller size than the first hole, and the second hole may be disposed to overlap the touch line.

[0045] In the method of manufacturing the display device, the touch line may include a plurality of touch signal lines, and the first hole may be provided between the plurality of touch signal lines.

[0046] In the method of manufacturing the display device, a gate signal generating circuit may be provided in the inactive region of the substrate before providing the planarizing film, and the cathode electrode and the anode electrode may be provided to overlap the gate signal generating circuit.

[0047] In the method of manufacturing the display device, the first hole may be disposed to overlap the gate signal generating circuit.

[0048] In a method of manufacturing a display device, an encapsulation layer may include a first inorganic film, a second inorganic film, and an organic film disposed between the first inorganic film and the second inorganic film.

[0049] In the method of manufacturing the display device, the first hole may be provided in a region where the planarization film and the bank contact each other.

[0050] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0051] Figure 1 A system configuration of a display device according to aspects of the present disclosure is illustrated.

[0052] Reference Figure 1 The display device 100 includes a display panel 110, a data driver 120, a gate driver 130, and a timing controller 140. The display device 100 may include one or more touch sensors disposed to overlap with the display panel 110.

[0053] The display panel 110 may include a plurality of pixels 101 arranged in a matrix form. Each of the plurality of pixels 101 may emit red light, green light, blue light, etc. However, the light emitted by each pixel according to the embodiment is not limited thereto. For example, the pixel may emit white light. In addition, the display panel 110 may have a rectangular shape.

[0054] The display panel 110 may include a plurality of gate lines GL1 to GLn, a plurality of data lines DL1 to DLm, and a plurality of pixels 101, each of which is connected to each of the plurality of gate lines GL1 to GLn and each of the plurality of data lines DL1 to DLm. Each pixel 101 may receive a data signal through each of the plurality of data lines DL1 to DLm according to a gate signal transmitted by each of the plurality of gate lines GL1 to GLn. However, the lines arranged in the display panel 110 according to the embodiment are not limited thereto.

[0055] The data driver 120 is connected to the plurality of data lines DL1 to DLm, and can transmit data signals to the pixels 101 through the plurality of data lines DL1 to DLm. Figure 1 A single data driver 120 is shown, but embodiments of the present disclosure are not limited thereto. For example, when necessary, the display device includes a plurality of data drivers.

[0056] The gate driver 130 is connected to the plurality of gate lines GL1 to GLn, and can provide gate signals to the pixels 101 through the plurality of gate lines GL1 to GLn. Figure 1 The gate driver 130 is shown to be located on one side of the display panel 110, but the embodiments of the present disclosure are not limited thereto. For example, the gate driver 130 may be located on both sides of the display panel 110. In addition, one of the two or more gate drivers may be connected to the odd-numbered gate lines, and another or other gate drivers may be connected to the even-numbered gate lines. In addition, the display device 100 may include a gate signal generating circuit for providing a gate signal to the display panel 110, without including a separate gate driver.

[0057] The timing controller 140 may control the data driver 120 and the gate driver 130. The timing controller 140 may provide the data driver 120 with the image signal RGB and the data control signal DCS, and provide the gate driver 130 with the gate control signal GCS.

[0058] The touch sensor 150 may be disposed to overlap at least a portion of the display panel 110 and may detect a touch performed by a user on the display panel 110. The touch sensor 150 may include one or more touch electrodes and one or more touch lines for transmitting one or more touch signals to the one or more touch electrodes.

[0059] Figure 2 is a circuit diagram illustrating a pixel used in a display device according to aspects of the present disclosure.

[0060] Reference Figure 2 The pixel 101 may include a pixel circuit for providing a driving current and a light emitting element ED for emitting light using the driving current. The light emitting element ED may be a light emitting diode including an organic light emitting diode.

[0061] The pixel circuit may include a first transistor M1, a second transistor M2, and a storage capacitor Cst.

[0062] The first electrode and the second electrode of the first transistor M1 may be connected to the first power line VL1 transmitting the first power voltage EVDD and the first node N1, respectively. In addition, the gate electrode of the first transistor M1 may be connected to the second node N2. The first transistor M1 may allow a driving current to flow through the first node N1 according to a voltage applied to the second node N2.

[0063] The first electrode and the second electrode of the second transistor M2 may be connected to the data line DL and the second node N2, respectively. In addition, the gate electrode of the second transistor M2 may be connected to the gate line GL. The second transistor M2 may transmit the data signal Vdata transmitted by the data line DL to the second node N2 according to the gate signal GATE transmitted by the gate line GL.

[0064] A first electrode and a second electrode of the storage capacitor Cst may be connected to the first node N1 and the second node N2, respectively. The storage capacitor Cst may maintain a voltage applied to the second node N2.

[0065] The light emitting element ED may include an anode electrode, a cathode electrode, and a light emitting layer disposed between the anode electrode and the cathode electrode and emitting light when current flows therethrough. The light emitting layer may include at least one of an organic material, an inorganic material, and a quantum dot material. The light emitting element ED, such as a light emitting diode including an organic light emitting diode, may receive a driving current flowing through the first node N1 and then emit light.

[0066] The first transistor M1 and the second transistor M2 of the pixel 101 may be NMOS transistors. However, the embodiments of the present disclosure are not limited thereto. In addition, the first electrode and the second electrode of the first transistor M1 and the second transistor M2 may be a drain electrode and a source electrode, respectively. However, the embodiments of the present disclosure are not limited thereto.

[0067] Figure 3 It is illustrated that a gate signal generating circuit is provided on a display panel in a display device according to aspects of the present disclosure.

[0068] Reference Figure 3 , the display panel 110 may include a gate signal generating circuit 130a disposed on or above a substrate 111. The substrate 111 may include an active region 110a in which one or more pixels 101 are disposed, and an inactive region 110b in which one or more signal lines for transmitting signals and / or voltages to the active region 110a are disposed. The gate signal generating circuit 130a may be disposed in the inactive region 110b. The gate signal generating circuit 130a may be disposed together with the pixel 101 in the process of disposing the pixel 101 in the active region 110a.

[0069] One or more touch sensors 150 may be disposed on or above the substrate 111. The touch sensor 150 may include one or more touch electrodes and one or more touch lines for transmitting one or more touch signals to the one or more touch electrodes. The touch electrodes may be disposed to overlap with the active area 110a, and the touch lines may be disposed to overlap with the inactive area 110b. The touch lines and the signal lines may be disposed on different layers in the inactive area 110b.

[0070] When the touch line is disposed on or above the signal line, capacitance may be formed between the touch line and the signal line, and a signal flowing through the signal line may act as noise in the touch line due to the capacitance.

[0071] Here, although Figure 3 The gate signal generating circuit 130a is shown to be located on one side of the substrate 111 and arranged to overlap with the substrate 111, but the embodiments of the present disclosure are not limited thereto. For example, the gate signal generating circuit 130a may be located on various sides of the substrate 111, such as the left and right sides, the top and bottom sides, etc., and arranged to overlap with the substrate 111.

[0072] Figure 4 According to the first embodiment, Figure 3 A cross-sectional view taken along line II'.

[0073] Reference Figure 4 , a gate insulating film 112 may be provided on the substrate 111, and a gate signal generating circuit 130a may be provided on the gate insulating film 112. Figure 4 The gate signal generating circuit 130a including a single metal layer is shown, but it should be noted that this is only for ease of description. For example, the gate signal generating circuit 130a may include multiple stacked insulating films and multiple metal layers. The gate signal generating circuit 130a may include multiple transistors.

[0074] A planarization film 113 may be provided on the gate signal generating circuit 130 a . An anode electrode 114 may be provided on the planarization film 113 .

[0075] The planarization film 113 may include optical acrylic or polyimide. However, the material or substance that may be included in the planarization film 113 according to the embodiment is not limited thereto. When the planarization film 113 is exposed to the atmosphere, the planarization film 113 may absorb moisture.

[0076] The anode electrode 114 disposed on the planarization film 113 includes a first hole H1. A portion of the planarization film 113 may be exposed through the first hole H1. Thus, the first hole H1 may be used as an exhaust passage capable of exhausting gas generated due to moisture in the planarization film 113. A bank 115 may be disposed on the anode electrode 114. The first hole H1 may be disposed in a region where the planarization film 113 and the bank 115 contact each other.

[0077] A cathode electrode 116 may be disposed on the bank 115. A first inorganic film 117, an organic film 118, and a second inorganic film 119 may be sequentially stacked on the cathode electrode 116. All or each of the first inorganic film 117, the organic film 118, and the second inorganic film 119 may be an encapsulation layer. The thickness of the organic film 118 may be greater than the thickness of each of the first inorganic film 117 and the second inorganic film 119. A touch line 151 may be disposed on the second inorganic film 119. The second inorganic film 119 may prevent the organic film 118 from being damaged when the touch line 151 is disposed.

[0078] The touch line 151 can be shielded from the gate signal generating circuit 130a by the cathode electrode 116 disposed under the touch line 151. However, since the cathode electrode 116 generally has a large process deviation, the cathode electrode 116 may not completely cover the gate signal generating circuit 130a. Therefore, since the cathode electrode 116 does not completely shield the gate signal generating circuit 130a, noise will be transmitted to the touch line 151 through the gate signal generating circuit 130a.

[0079] Figure 5 Illustrated according to various aspects of the present disclosure Figure 3 The layout of the X region.

[0080] Reference Figure 5 , one or more signal lines 132 included in the gate signal generating circuit 130a may be disposed on or above the substrate 111. The signal line 132 may be a clock signal line for transmitting a clock signal provided to the gate signal generating circuit 130a. However, the embodiments of the present disclosure are not limited thereto. The anode electrode 114 may be disposed on one or more signal lines 132. The touch line 151 may be disposed on the anode electrode 114.

[0081] The anode electrode 114 may include a plurality of first holes H1. The plurality of first holes H1 may be arranged in three columns, each column including some of the plurality of first holes H1. However, embodiments of the present disclosure are not limited thereto.

[0082] The plurality of first holes H1 may be arranged not to overlap with the touch sensor 150. One of the three columns of first holes H1 is arranged in the first region A where the touch line 151 and the signal line 132 do not overlap with each other, and the other two columns of first holes H1 may be arranged in the second region B where the touch line 151 and the signal line 132 overlap with each other.

[0083] Since the first hole H1 is provided in the anode electrode 114 , an exhaust path capable of propagating gas generated from the planarization film 113 may be provided, and as a result, defects may be prevented from being caused in the display device 100 .

[0084] although Figure 5 The cathode electrode 116 is not shown in FIG. 1 , but the cathode electrode 116 may cover at least a portion or all of one or more signal lines 132 .

[0085] A plurality of first holes H1 may be disposed in a first region A where the touch line 151 and the signal line 132 do not overlap each other, and in a second region B where the touch line 151 and the signal line 132 overlap each other. Due to at least one first hole H1 disposed in the second region B, the anode electrode 114 may cause the signal line 132 and the touch line 151 to be unshielded.

[0086] Figure 6 According to the second embodiment, Figure 3 A cross-sectional view taken along line II'.

[0087] Reference Figure 6 , a gate insulating film 112 may be provided on the substrate 111, and a gate signal generating circuit 130a may be provided on the gate insulating film 112 and in a region corresponding to at least a portion of the inactive region 110b. Figure 6 The gate signal generating circuit 130a including a single metal layer is shown, but it should be noted that this is only for ease of description. For example, the gate signal generating circuit 130a may include multiple insulating films and multiple metal layers. The gate signal generating circuit 130a may include multiple transistors.

[0088] A planarization film 113 may be provided on the gate signal generating circuit 130a. An anode electrode 114 may be provided on the planarization film 113, and a cathode electrode 116 may be provided on the anode electrode 114. The planarization film 113 may include optical acrylic or polyimide. When the planarization film 113 is exposed to the atmosphere, the planarization film 113 may absorb moisture. A bank 115 may be provided on the anode electrode 114.

[0089] A cathode electrode 116 may be disposed on the bank 115. A first inorganic film 117, an organic film 118, and a second inorganic film 119 may be sequentially stacked on the cathode electrode 116. All or each of the first inorganic film 117, the organic film 118, and the second inorganic film 119 may be an encapsulation layer. The thickness of the organic film 118 may be greater than the thickness of each of the first inorganic film 117 and the second inorganic film 119. A touch line 151 may be disposed on the second inorganic film 119. The second inorganic film 119 may prevent the organic film 118 from being damaged when the touch line 151 is disposed.

[0090] The touch line 151 may be shielded from the signal line 132 by the cathode electrode 116 disposed below the touch line 151. The touch line 151 may be shielded from the signal line 132 by the anode electrode 114 disposed below the cathode electrode 116.

[0091] Even when the cathode electrode 116 generally has a large process deviation so that the cathode electrode 116 does not completely cover the touch line 151 , since the touch line 151 can be shielded by the anode electrode 114 , noise can be prevented from being transmitted to the touch line 151 .

[0092] 7A to 7C Illustrated according to various aspects of the present disclosure Figure 3 The layout of the X region.

[0093] Reference 7A to 7C , one or more signal lines 132 included in the gate signal generating circuit 130a may be disposed on or over the substrate 111. The signal line 132 may be a clock signal line for transmitting a clock signal provided to the gate signal generating circuit 130a. However, embodiments of the present disclosure are not limited thereto.

[0094] The anode electrode 114 may be disposed on one or more signal lines 132. The touch line 151 may be disposed on the anode electrode 114. The anode electrode 114 may include a plurality of first holes H1.

[0095] although 7A to 7C The cathode electrode 116 is not shown in FIG. 1 , but the cathode electrode 116 may cover at least a portion or all of one or more signal lines 132 .

[0096] Reference Fig. 7A In the first region A where the touch line 151 and one or more signal lines 132 do not overlap each other and the second region B where the touch line 151 and the signal line 132 overlap each other, a plurality of first holes H1 may be provided in the first region A. In addition, the first holes H1 may be provided in a region where the planarization film 113 and the bank 115 contact each other.

[0097] Table 1 below shows sample 1 (for example, using Figure 5The noise in the display device with the anode electrode shown in FIG. 1 is similar to that in sample 2 (for example, using Fig. 7A Comparison between the noise in the display device with the anode electrode shown in FIG.

[0098] [Table 1]

[0099]

[0100] In Table 1 above, Gclk represents the voltage of the clock signal output from the gate signal generating circuit, and Cathode represents the voltage of the cathode electrode. In addition, Rx represents the voltage of the touch signal output from the touch line. The voltage of the clock signal, the voltage of the cathode electrode, and the voltage of the touch signal were measured using five display devices.

[0101] Referring to Table 1 above, in Sample 1 (for example, using Figure 5 The minimum value, maximum value, and average value of each of the voltage of the cathode electrode and the voltage of the touch signal measured in the display device with the anode electrode shown in FIG. 1 are respectively greater than those in Sample 2 (for example, the display device with the anode electrode shown in FIG. 1 ). Fig. 7A The minimum value, maximum value and average value of each of the voltage of the cathode electrode and the voltage of the touch signal measured in the display device having the anode electrode shown in FIG.

[0102] It can be seen that when the first hole H1 is removed from the region of the anode electrode 114 overlapping the gate signal generating circuit 130 a , noise shielding of the touch sensor 150 is improved.

[0103] Reference Figure 7B , in the first area A where the touch line 151 and one or more signal lines 132 do not overlap each other and the second area B where the touch line 151 and the signal line 132 overlap each other, the plurality of first holes H1 may be provided in the first area A. The touch line 151 may include a plurality of touch signal lines, and the first area A may be an area provided between the plurality of touch signal lines. The plurality of first holes H1 may not be provided in the second area B where the touch line 151 and the signal line 132 overlap each other. Therefore, the anode electrode 114 may shield the touch line 151 from the signal line 132 in the second area B where the touch line 151 and the signal line 132 overlap each other.

[0104] Reference Figure 7C, among the first area A where the touch line 151 and one or more signal lines 132 do not overlap with each other and the second area B where the touch line 151 and the signal line 132 overlap with each other, a plurality of first holes H1 may be provided in the first area A. In addition, one or more second holes H2 having a smaller size than the first holes H1 may be provided in the second area B where the touch line 151 and the signal line 132 overlap with each other. Even if the size of the second hole H2 formed in the anode electrode 114 in the second area B is small, noise shielding of the touch sensor 150 may be improved.

[0105] The sum of the sizes of the plurality of second holes H2 corresponding to one first hole H1 may be determined to be smaller than half of the size of the first hole H1. Figure 7C In the embodiment, the sum of the sizes of the four second holes H2 may be smaller than half of the size of one first hole H1.

[0106] like 7A to 7C As shown in FIG. 1 , at least one of the first hole H1 and the second hole H2 is provided on the planarization film 113 , and an exhaust path capable of exhausting gas is provided, whereby defects can be prevented from occurring in the display device 100 .

[0107] Figure 8 is a flowchart illustrating a method of manufacturing a display device including a touch sensor according to aspects of the present disclosure.

[0108] Reference Figure 8 In step S810, a planarization film 113 may be disposed on or above the substrate 111. The substrate 111 may be formed of glass or polyimide. The planarization film 113 may be formed of optical acrylic or polyimide. When the planarization film 113 is exposed to the atmosphere, the planarization film 113 may absorb moisture.

[0109] Before the planarization film 113 is provided on the substrate 111, in step S800, a gate signal generating circuit 130a may be provided on the substrate 111. The gate signal generating circuit 130a may be provided on or above the substrate 111 in the inactive region 110b. The gate signal generating circuit 130a may be provided on one side of the substrate 111. The gate signal generating circuit 130a may be provided on both sides of the substrate 111, for example, the left side and the right side, the top side and the bottom side, etc.

[0110] The gate signal generating circuit 130a may be formed by patterning the conductive layer, and the gate signal generating circuit 130a may include a signal line 132. The signal line 132 may include a clock signal line for transmitting a clock signal to the gate signal generating circuit 130a. The gate signal generating circuit 130a may include a plurality of transistors. When one or more pixels 101 are disposed on or above the substrate 111, the gate signal generating circuit 130a may be disposed together with the pixels 101 on or above the substrate 111 in the inactive region 110b.

[0111] In step S820, an anode electrode 114 may be disposed on the planarization film 113. The anode electrode 114 may include one or more first holes H1. Since the first holes H1 formed in the anode electrode 114 provide an exhaust path that enables the gas generated from the planarization film 113 to propagate, as a result, defects may be prevented from being caused in the display device 100. The first holes H1 may be disposed in the non-active region 110b to overlap with the gate signal generating circuit 130a.

[0112] In step S830 , a bank 115 may be disposed on the anode electrode 114 , and the bank 115 may be disposed to overlap the first hole H1 .

[0113] In step S840, a cathode electrode 116 may be disposed on the bank 115. The cathode electrode 116 may cover the upper portion of the substrate 111. The cathode electrode 116 may cover the upper portion of the gate signal generating circuit 130a. The cathode electrode 116 may shield the gate signal generating circuit 130a. However, in the corresponding manufacturing process, since the cathode electrode 116 generally has a large process deviation, it may only cover a portion of the upper portion of the gate signal generating circuit 130a, so there is a possibility that the effect of shielding the gate signal generating circuit 130a using the cathode electrode 116 may be degraded.

[0114] In step S850, an encapsulation layer may be disposed on the cathode electrode 116. The encapsulation layer may include a first inorganic film 117, a second inorganic film 119, and an organic film 118 disposed between the first inorganic film 117 and the second inorganic film 119. The thickness of the organic film 118 may be greater than the thickness of each of the first inorganic film 117 and the second inorganic film 119. The encapsulation layer may be used to prevent penetration of foreign matter including moisture and air.

[0115] The touch sensor 150 may be disposed on the encapsulation layer. The touch sensor 150 may include a touch electrode and a touch wire 151. In addition, the second inorganic film 119 may prevent the organic film 118 from being damaged when the touch wire 151 is disposed.

[0116] The first hole H1 may be disposed so as not to overlap with the touch line 151. Among the first region A where the touch line 151 and one or more signal lines 132 do not overlap with each other and the second region B where the touch line 151 and the signal line 132 overlap with each other, the first hole H1 may be disposed in the first region A. Since the first hole H1 included in the anode electrode 114 is disposed so as not to overlap with the touch line 151, the touch line 151 and the signal line 132 may be shielded by the anode electrode 114. Therefore, since double shielding of the gate signal generating circuit 130a may be performed, shielding of the gate signal generating circuit 130a may be improved.

[0117] The touch line 151 may include a plurality of touch signal lines, and the first hole H1 may be disposed between the plurality of touch signal lines. In addition, one or more second holes H2 having a smaller size than the first hole H1 may be disposed in the second region B where the touch line 151 and the signal line 132 overlap each other.

[0118] It is clear to those skilled in the art that various changes and variations can be made in the present disclosure without departing from the technical concept or scope of the disclosure. Therefore, the present disclosure is intended to cover the changes and variations of the disclosure as long as they are within the scope of the claims and their equivalents.

Claims

1. A display device, comprising: A substrate having an active area and a non-active area, wherein a pixel circuit is disposed in the active area, and the pixel circuit includes at least one transistor and a storage capacitor; a planarization film disposed above the substrate; an anode electrode disposed on the planarization film, the anode electrode including a first hole and a second hole having a size smaller than the first hole in the inactive region; a bank disposed on the anode electrode; a cathode electrode disposed on the bank; an encapsulation layer disposed on the cathode electrode; and A touch sensor is disposed on the encapsulation layer, wherein the touch sensor includes a touch line in the inactive area. The first hole is arranged not to overlap with the touch line, and the second hole is arranged to overlap with the touch line. 2 . The display device according to claim 1 , wherein the touch line comprises a plurality of touch signal lines, and the first hole is provided between the plurality of touch signal lines.

3. The display device according to claim 1 , further comprising a gate signal generating circuit provided below the planarization film in the inactive area, The cathode electrode and the anode electrode are arranged to overlap with the gate signal generating circuit. 4 . The display device according to claim 3 , wherein the first hole is disposed to overlap with the gate signal generating circuit.

5. The display device according to claim 1, wherein the encapsulation layer comprises: First inorganic membrane; a second inorganic film; and An organic film is provided between the first inorganic film and the second inorganic film. 6 . The display device according to claim 1 , wherein the first hole is provided in a region where the planarization film and the bank are in contact with each other.

7. A method for manufacturing a display device, the method comprising: Disposing a planarization film over a substrate having an active area and a non-active area, wherein a pixel circuit is disposed in the active area, the pixel circuit including at least one transistor and a storage capacitor; providing an anode electrode on the planarization film, the anode electrode including a first hole and a second hole having a size smaller than the first hole in the inactive region; providing a bank on the anode electrode; Disposing a cathode electrode on the bank; Disposing an encapsulation layer on the cathode electrode; and A touch sensor is disposed on the encapsulation layer, wherein the touch sensor includes a touch line in the inactive area. The first hole is arranged not to overlap with the touch line, and the second hole is arranged to overlap with the touch line. 8 . The method of claim 7 , wherein the touch line comprises a plurality of touch signal lines, and the first hole is disposed between the plurality of touch signal lines.

9. The method according to claim 7, further comprising providing a gate signal generating circuit in the inactive area of ​​the substrate before providing the planarization film, The cathode electrode and the anode electrode are arranged to overlap with the gate signal generating circuit. 10 . The method of claim 9 , wherein the first hole is disposed to overlap with the gate signal generating circuit.

11. The method according to claim 7, wherein the encapsulation layer comprises: First inorganic membrane; a second inorganic film; and An organic film is provided between the first inorganic film and the second inorganic film. 12 . The method according to claim 7 , wherein the first hole is provided in a region where the planarization film and the bank are in contact with each other.

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