Display device

Abstract

The present application relates to a display device, which includes: a display panel; and an input sensing panel, which is arranged on the display panel and divided into an active area and a peripheral area adjacent to the active area. The input sensing panel includes: a base layer; a plurality of sensing electrodes arranged in a first direction and a second direction intersecting each other in an insulated manner; and a plurality of sensing lines connected to a plurality of corresponding sensing electrodes among the plurality of sensing electrodes, at least one of the plurality of sensing lines including an inclined portion extending in a direction inclined relative to each of the first direction and the second direction. Here, each of the plurality of sensing lines includes a lower layer and an upper layer, wherein the lower layer is arranged on the base layer and includes a first conductive material, the upper layer includes a second conductive material different from the first conductive material and contacts the lower layer, and the upper layer arranged in the inclined portion is disconnected in the inclined direction to expose a portion of the lower layer.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority based on Korean Patent Application No. 10-2019-0170344, filed on December 19, 2019, which is hereby incorporated by reference in its entirety. Technical Field

[0003] The present disclosure relates to a display device including an input sensing panel, and more particularly, to a display device having improved reliability. Background Art

[0004] The display device may include a display panel for displaying an image and an input sensing panel for detecting an external input. The input sensing panel may be integrated with the display panel through a continuous process. Alternatively, the input sensing panel may be provided through a separate process from the display panel and then coupled to the display panel. Summary of the Invention

[0005] The present disclosure provides a display device having improved reliability by including an input sensing panel that blocks moisture introduced from the outside.

[0006] An embodiment of the present invention provides a display device, comprising: a display panel; and an input sensing panel disposed on the display panel and divided into an active area and a peripheral area adjacent to the active area. Here, the input sensing panel comprises: a base layer; a plurality of sensing electrodes disposed on the base layer in the active area and arranged in a first direction and a second direction intersecting each other in an insulated manner; and a plurality of sensing lines disposed in the peripheral area and connected to a plurality of corresponding sensing electrodes among the plurality of sensing electrodes, at least one of the plurality of sensing lines comprising an inclined portion extending in a direction inclined relative to each of the first direction and the second direction. In addition, each of the plurality of sensing lines comprises a lower layer and an upper layer, wherein the lower layer is disposed on the base layer and comprises a first conductive material, the upper layer comprises a second conductive material different from the first conductive material and contacts the lower layer, and the upper layer disposed in the inclined portion is disconnected in the inclined direction to expose a portion of the lower layer.

[0007] In an embodiment, the input sensing panel may include: a first conductive layer including a portion of the plurality of sensing electrodes and a lower layer and containing the same material as the first conductive material; a first sensing insulating layer covering the first conductive layer and defining a plurality of contact holes in the first sensing insulating layer; and a second conductive layer including another portion of the plurality of sensing electrodes and an upper layer and containing the same material as the second conductive material.

[0008] In an embodiment, the first conductive material may include a transparent conductive oxide, and the second conductive material may include a metal.

[0009] In an embodiment, the plurality of sensing electrodes may include: a first sensing electrode including a plurality of first sensing patterns arranged in a first direction and a plurality of first connection patterns configured to connect the plurality of first sensing patterns; and a second sensing electrode including a plurality of second sensing patterns arranged in a second direction and a plurality of second connection patterns configured to connect the plurality of second sensing patterns. Here, the plurality of first sensing patterns, the plurality of second sensing patterns, and the plurality of second connection patterns may be formed from a first conductive layer, and the first connection patterns may be formed from a second conductive layer. Furthermore, the plurality of first connection patterns may be connected to the plurality of first sensing patterns via contact holes.

[0010] In an embodiment, the first sensing electrode may include a first interconnection pattern extending from a first sensing pattern disposed adjacent to the peripheral region among the plurality of first sensing patterns and connected to a plurality of corresponding sensing lines among the plurality of sensing lines, and the second sensing electrode may include a second interconnection pattern extending from a second sensing pattern disposed adjacent to the peripheral region among the plurality of second sensing patterns and connected to a plurality of corresponding sensing lines among the plurality of sensing lines.

[0011] In an implementation, the inclined portion of each of the sensing lines may face a corner of one of the first and second interconnection patterns.

[0012] In an embodiment, the upper layer provided in the inclined portion may have a plurality of disconnected portions.

[0013] In an embodiment, a length of the inclined portion of each of the plurality of sensing lines in the inclined direction may gradually decrease in a direction away from the plurality of sensing electrodes.

[0014] In an embodiment, the upper layer may cover the lower layer.

[0015] In an embodiment, the base layer may include glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings:

[0017] Figure 1 is a perspective view illustrating a display device according to an embodiment of the present inventive concept;

[0018] Figure 2is an exploded perspective view illustrating a display device according to an embodiment of the present inventive concept;

[0019] Figure 3A is a cross-sectional view illustrating a display module according to an embodiment of the present inventive concept;

[0020] Figure 3B is a cross-sectional view illustrating a display module according to an embodiment of the present inventive concept;

[0021] Figure 4 is a plan view illustrating a display panel according to an embodiment of the present inventive concept;

[0022] Figure 5 is a plan view illustrating an input sensing panel according to an embodiment of the present inventive concept;

[0023] Figure 6A It shows Figure 5 An enlarged view of the portion TT' in FIG.

[0024] Figure 6B It is along Figure 6A A sectional view taken along line II';

[0025] Figure 7 It shows Figure 5 An enlarged plan view of the area QQ' in FIG;

[0026] Figure 8A It is along Figure 7 A sectional view taken along line II-II';

[0027] Figure 8B It shows the corresponding Figure 8A a cross-sectional view of a region;

[0028] Figure 9 It is along Figure 7 A sectional view taken along line III-III';

[0029] Figure 10 It shows the corresponding Figure 9 a cross-sectional view of a region;

[0030] Figure 11 It is along Figure 7 A sectional view taken along line IV-IV';

[0031] Figure 12 is an enlarged plan view illustrating one region of an input sensing panel according to an embodiment of the present inventive concept; and

[0032] Figure 13 It is along Figure 12 A cross-sectional view taken along line V-V'. DETAILED DESCRIPTION

[0033] In this specification, it should also be understood that when a component (or region, layer, part) is referred to as being "on," "connected to" or "coupled to" another component, it can be directly set on one component / connected / coupled to one component, or there may be a third component in between.

[0034] The same reference numerals refer to the same elements throughout. In addition, in the drawings, the thickness, proportions and sizes of components are exaggerated for clarity of explanation.

[0035] The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] It should be understood that although terms such as "first" and "second" are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one component from other components. For example, an element referred to as a first element in one embodiment may be referred to as a second element in another embodiment without departing from the scope of the appended claims. Unless otherwise mentioned, terms in the singular may include plural forms.

[0037] In addition, “under”, “below”, “above”, “on”, etc. are used to explain the relationship between components shown in the drawings. The terms may be relative concepts and described based on the directions expressed in the drawings.

[0038] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant technology, and unless clearly defined in the specification, these terms should not be ideally or excessively interpreted as having formal meanings.

[0039] The meaning of “include” or “comprise” indicates a property, a fixed number, a step, an operation, an element, a component or a combination thereof, but does not exclude other properties, fixed numbers, steps, operations, elements, components or a combination thereof. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0040] Figure 1 is a perspective view illustrating a display device according to an embodiment of the inventive concept. Figure 2 is an exploded perspective view illustrating a display device according to an embodiment of the inventive concept.

[0041] Reference Figure 1 and Figure 2, the display device EA can be activated according to the electrical signal. The display device EA may include various embodiments. For example, the display device EA can be used in large electronic devices such as televisions, monitors, or outdoor billboards, as well as small and medium-sized electronic devices such as personal computers, notebook computers, personal digital terminals, navigation units for vehicles, game consoles, portable electronic devices, and cameras. In addition, the above-mentioned devices are only exemplified as exemplary embodiments, and therefore, the display device EA can be adopted by other electronic devices unless it departs from the spirit and scope of the present invention. In this embodiment, a smart phone is shown as an example of the display device EA.

[0042] The display device EA can display an image IM in a third direction DR3 on a display surface FS that is parallel to each of the first direction DR1 and the second direction DR2. The image IM may include a still image as well as a video. Figure 1 , a clock window and an icon are shown as examples of the image IM. The display surface FS displaying the image IM may correspond to each of the front surface of the display device EA and the front surface of the window panel WP.

[0043] In an embodiment, the front surface (or top surface) and rear surface (or bottom surface) of each component are defined based on the direction in which the image IM is displayed. The front surface and rear surface may be opposite to each other in a third direction DR3, and the normal direction of each of the front surface and rear surface may be parallel to the third direction DR3. Here, as relative concepts, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 may be shifted relative to each other. In this specification, the expression "on a plane" may refer to a feature observed in the third direction DR3.

[0044] The display apparatus EA may include a window panel WP, an anti-reflection panel RPP, a display module DM, and a housing HU. In an embodiment, the window panel WP and the housing HU may be coupled to provide an external appearance of the display apparatus EA.

[0045] The window panel WP may include an optically transparent insulating material. For example, the window panel WP may include glass or plastic. The window panel WP may have a single-layer or multi-layer structure. For example, the window panel WP may include multiple plastic films coupled by an adhesive, or a glass substrate and a plastic film coupled by an adhesive.

[0046] The display surface FS of the window panel WP may be the front surface of the display device EA. The transmissive area TA may be an optically transparent area. For example, the transmissive area TA may have a visible light transmittance of about 90% or more.

[0047] The bezel area BZA may have a light transmittance relatively lower than that of the transmission area TA. The bezel area BZA defines the shape of the transmission area TA. The bezel area BZA may be adjacent to the transmission area TA to surround the transmission area TA.

[0048] The bezel area BZA may have a predetermined color. The bezel area BZA may cover the peripheral area NAA of the display module DM to block the peripheral area NAA from being seen from the outside. However, embodiments of the present invention are not limited thereto. For example, the bezel area BZA may not exist in the window panel WP.

[0049] The anti-reflection panel RPP may be disposed below the window panel WP. The anti-reflection panel RPP may reduce the reflectivity of external light incident from the upper side of the window panel WP. The anti-reflection panel RPP according to an embodiment of the present inventive concept may be omitted or may be included in the display module DM.

[0050] The display module DM may display an image IM and detect an external input. The display module DM may include a front surface IS, wherein the front surface IS includes an active area AA and a peripheral area NAA. The active area AA may be activated according to an electrical signal.

[0051] In an embodiment, the active area AA may be an area that displays an image IM and simultaneously detects external input. The transmissive area TA may overlap at least a portion of the active area AA. For example, the transmissive area TA may overlap the front surface or at least a portion of the active area AA. Thus, a user can view the image IM or provide external input through the transmissive area TA. However, this is merely an example. In the active area AA of the display module DM according to an embodiment of the present inventive concept, the area for displaying the image IM and the area for detecting external input may be separate from each other. However, embodiments of the present inventive concept are not limited to this.

[0052] The peripheral area NAA may be covered by the frame area BZA. The peripheral area NAA is disposed adjacent to the active area AA. The peripheral area NAA may surround the active area AA. A driving circuit or line for driving the active area AA may be disposed in the peripheral area NAA.

[0053] The display module DM may include a display panel DP, an input sensing panel ISP, and a driving circuit DC.

[0054] The display panel DP may be a component that basically generates an image IM. The image IM generated by the display panel DP may be viewed by a user through the transmissive area TA.

[0055] The input sensing panel ISP may detect an external input applied from the outside. As described above, the input sensing panel ISP may detect an external input provided to the window panel WP.

[0056] The external input may include various types of input provided from outside the display device EA. The external input applied from the outside may be of various types. For example, the input may include contact generated by a part of the human body such as a user's hand and an external input applied by approaching the display device EA or being adjacent to the display device EA at a predetermined distance (e.g., hovering). Moreover, the external input may be of various types, such as force, pressure, and light. However, embodiments of the present inventive concept are not limited thereto.

[0057] The driving circuit DC may be electrically connected to the display panel DP and the input sensing panel ISP. The driving circuit DC may include a main circuit board MB, a first circuit board CF1, and a second circuit board CF2.

[0058] The first circuit board CF1 may be electrically connected to the display panel DP. The first circuit board CF1 may connect the display panel DP and the main circuit board MB. The first circuit board CF1 according to the present embodiment is shown as a flexible circuit film. However, embodiments of the present inventive concept are not limited thereto. For example, the first circuit board CF1 according to an embodiment of the present inventive concept may not be connected to the main circuit board MB and may be a rigid board.

[0059] The first circuit board CF1 may be connected to pads (display pads) of the display panel DP disposed in the peripheral area NAA. The first circuit board CF1 may provide an electrical signal for driving the display panel DP to the display panel DP. The electrical signal may be generated in the first circuit board CF1 or in the main circuit board MB.

[0060] The second circuit board CF2 can be electrically connected to the input sensing panel ISP. The second circuit board CF2 can connect the input sensing panel ISP and the main circuit board MB. According to the present embodiment, the second circuit board CF2 is shown as a flexible circuit film. However, embodiments of the present inventive concept are not limited thereto. For example, the second circuit board CF2 according to an embodiment of the present inventive concept may not be connected to the main circuit board MB and may be a rigid board.

[0061] The second circuit board CF2 may be connected to pads (sensing pads) of the input sensing panel ISP disposed in the peripheral area NAA. The second circuit board CF2 may provide an electrical signal for driving the input sensing panel ISP to the input sensing panel ISP. The electrical signal may be generated in the second circuit board CF2 or the main circuit board MB.

[0062] The main circuit board MB may include various drive circuits for driving the display module DM or connectors for power supply. Each of the first circuit board CF1 and the second circuit board CF2 may be connected to the main circuit board MB. The display module DM according to an embodiment of the present invention can be easily controlled by a single main circuit board MB. However, this is merely an example. For example, in a display module DM according to an embodiment of the present invention, the display panel DP and the input sensing panel ISP may be connected to different main circuit boards, and one of the first circuit board CF1 and the second circuit board CF2 may not be connected to the main circuit board MB. However, embodiments of the present invention are not limited thereto.

[0063] The housing HU may be coupled to the window panel WP. The housing HU may be coupled to the window panel WP to provide a predetermined inner space. The display module DM may be accommodated in the inner space.

[0064] The housing HU may be made of a relatively rigid material. For example, the housing HU may be made of glass, plastic, or metal, or a combination thereof, and may include multiple frames and / or plates. The housing HU may safely protect the components of the display device EA housed in the interior space from external impacts.

[0065] Figure 3A is a cross-sectional view illustrating a display module according to an embodiment of the inventive concept. Figure 3B is a cross-sectional view illustrating a display module according to an embodiment of the present inventive concept. Figure 1 and Figure 2 The same or similar components in the drawings will be denoted by the same or similar reference numerals, respectively, and repeated descriptions thereof will be omitted.

[0066] Reference Figure 3A , the display module DM may include a display panel DP, an input sensing panel ISP and a driving circuit DC.

[0067] The display panel DP may include a first base layer BS1, a display circuit layer ML-D, and an image realization layer EML. The input sensing panel ISP may include a second base layer BS2 and a sensing circuit layer ML-T.

[0068] Each of the first base layer BS1 and the second base layer BS2 may be a laminated structure including a silicon substrate, a plastic substrate, a glass substrate, an insulating film, or a plurality of insulating layers.

[0069] The display circuit layer ML-D may be disposed on the first base layer BS1. The display circuit layer ML-D may include multiple insulating layers, multiple conductive layers, and semiconductor layers. The multiple conductive layers of the display circuit layer ML-D may constitute signal lines or control circuits for pixels.

[0070] The image realization layer EML may be disposed on the display circuit layer ML-D. The image realization layer EML may include an organic light emitting diode. However, this is merely an example. For example, the image realization layer EML may include an inorganic light emitting diode, an organic-inorganic light emitting diode, or a liquid crystal layer.

[0071] The second base layer BS2 may be disposed on the image realization layer EML. A predetermined space may be defined between the second base layer BS2 and the image realization layer EML. The space may be filled with air or an inert gas. In addition, in an embodiment of the present inventive concept, the space may be filled with a filling material such as a silicon-based polymer, an epoxy-based resin, or an acrylic-based resin.

[0072] The sensing circuit layer ML-T may be disposed on the second base layer BS2. The sensing circuit layer ML-T may include multiple insulating layers and multiple conductive layers. The multiple conductive layers may include sensing electrodes for detecting external inputs, sensing lines electrically connected to the sensing electrodes, and sensing pads electrically connected to the sensing lines. This will be described below.

[0073] The coupling member SLM may be disposed between the first base layer BS1 and the second base layer BS2. The coupling member SLM may couple the first base layer BS1 and the second base layer BS2. The coupling member SLM may include an organic material such as a photocurable resin or a photosetting resin or an inorganic material such as a glass frit seal. However, embodiments of the present inventive concept are not limited thereto.

[0074] refer to Figure 3B The display module DM-1 may include a display panel DP-1 and an input sensing panel ISP-1. The input sensing panel ISP-1 may be referred to as an input sensing layer.

[0075] The display panel DP-1 may include a first base layer BS1, a display circuit layer ML-D, an image realization layer EML, and a thin film encapsulation layer ECL. The input sensing panel ISP-1 may include a second base layer ECL and a sensing circuit layer ML-T. The thin film encapsulation layer ECL and the second base layer ECL may be the same component.

[0076] The thin film encapsulation layer ECL may seal the image realization layer EML to block moisture and oxygen from being introduced into the image realization layer EML from the outside. The thin film encapsulation layer ECL may include an organic layer and a plurality of inorganic layers sealing the organic layer.

[0077] According to an embodiment of the present inventive concept, the display panel DP-1 and the input sensing panel ISP-1 may be provided through a continuous process. That is, the sensing circuit layer ML-T may be directly disposed on the thin film encapsulation layer ECL.

[0078] Figure 4is a plan view showing a display panel according to an embodiment of the present inventive concept. Figures 1 to 3B The same or similar components in the drawings will be denoted by the same or similar reference numerals, respectively, and repeated descriptions thereof will be omitted.

[0079] Reference Figure 4 , the display panel DP may include a plurality of pixels PX, a plurality of signal lines GL, DL, PL, and EL, and a plurality of display pads PDD.

[0080] The display panel DP may have an active area AA in which an image is displayed and a peripheral area NAA in which a driving circuit or a driving line is disposed. Figure 4 , an active area AA and a peripheral area NAA of the display panel DP are shown. A plurality of pixels PX may be disposed in the active area AA.

[0081] A plurality of signal lines GL, DL, PL, and EL can be connected to the pixels PX and transmit electrical signals to the pixels PX. A scan line GL, a data line DL, a power line PL, and an emission control line EL are exemplarily shown among the signal lines included in the display panel DP. However, this is merely an example. Although the signal lines GL, DL, PL, and EL according to embodiments of the present inventive concept may further include an initialization voltage line, embodiments of the present inventive concept are not limited thereto.

[0082] The power pattern VDD may be provided in the peripheral area NAA. The power pattern VDD may be connected to the plurality of power lines PL. Therefore, the display panel DP may provide the same first power signal to the plurality of pixels PX by including the power pattern VDD.

[0083] The display pad PDD may include a first pad D1 and a second pad D2. The first pad D1 may be provided in plurality, and the plurality of first pads D1 may be connected to the data line DL, respectively. The second pad D2 may be connected to the power pattern VDD and electrically connected to the power line PL. The display panel DP may provide an externally provided electrical signal to the pixel PX through the display pad PDD. The display pad PDD may further include pads for receiving other electrical signals in addition to the first pad D1 and the second pad D2. However, embodiments of the present inventive concept are not limited thereto.

[0084] Figure 5 is a plan view illustrating an input sensing panel according to an embodiment of the inventive concept. Figure 6A It shows Figure 5 An enlarged plan view of region TT' in FIG. Figure 6B It is along Figure 6A A cross-sectional view taken along line II'. Figures 1 to 4The same or similar components in the drawings will be denoted by the same or similar reference numerals, respectively, and repeated descriptions thereof will be omitted.

[0085] Reference Figure 5 The input sensing panel ISP may include a second base layer BS2, a plurality of sensing electrodes TE1 and TE2, a plurality of sensing lines TL1, TL2, and TL3, and a plurality of sensing pads PDT. The plurality of sensing electrodes TE1 and TE2, the plurality of sensing lines TL1, TL2, and TL3, and the plurality of sensing pads PDT may constitute a sensing circuit layer ML-T (refer to Figure 3A and Figure 3B ).

[0086] The second base layer BS2 may include an active area AA-I and a peripheral area NAA-I adjacent to the active area AA-I. The peripheral area NAA-I may surround the active area AA-I.

[0087] The plurality of sensing electrodes TE1 and TE2 may include a first sensing electrode TE1 and a second sensing electrode TE2. The first sensing electrode TE1 and the second sensing electrode TE2 may be disposed on the second base layer BS2 and overlap the active area AA-I. The input sensing panel ISP may obtain information of an external input through changes in capacitance between the first sensing electrode TE1 and the second sensing electrode TE2.

[0088] The first sensing electrode TE1 may extend in the first direction DR1 and be arranged in the second direction DR2. The first sensing electrode TE1 may include a first sensing pattern SP1, a first connection pattern BP1, and a first interconnection pattern CP1. The first sensing pattern SP1 may be arranged in the first direction DR1.

[0089] At least one first connection pattern BP1 may be connected to two mutually adjacent first sensing patterns SP1. Each of the first interconnection patterns CP1 may extend from the first sensing pattern SP1 closest to the peripheral area NAA-1 among the first sensing patterns SP1 included in the first sensing electrode TE1. Each of the second sensing line TL2 and the third sensing line TL3 may be connected to the corresponding first interconnection pattern CP1 and to the first sensing pattern SP1.

[0090] The second sensing electrode TE2 may extend in the second direction DR2 and be arranged in the first direction DR1. The second sensing electrode TE2 may include a second sensing pattern SP2, a second connection pattern BP2, and a second interconnection pattern CP2. The second sensing pattern SP2 may be arranged in the second direction DR2.

[0091] At least one second connection pattern BP2 may be connected to two mutually adjacent second sensing patterns SP2. Each of the second interconnection patterns CP2 may extend from the second sensing pattern SP2 closest to the peripheral area NAA-1 among the second sensing patterns SP2 included in the second sensing electrode TE2. Each first sensing line TL1 may be connected to a corresponding second interconnection pattern CP2 and to the second sensing pattern SP2.

[0092] The sensing lines TL1, TL2, and TL3 may be disposed in the peripheral area NAA-1. The sensing lines TL1, TL2, and TL3 may include a first sensing line TL1, a second sensing line TL2, and a third sensing line TL3.

[0093] The first sensing line TL1 may be connected to the second sensing electrode TE2. The second sensing line TL2 may be connected to one end of the first sensing electrode TE1. The third sensing line TL3 may be connected to the other end of the first sensing electrode TE1. The other end of the first sensing electrode TE1 may be opposite to one end of the first sensing electrode TE1.

[0094] The first sensing electrode TE1 according to an embodiment of the present inventive concept can be connected to the second sensing line TL2 and the third sensing line TL3. Therefore, it is possible to uniformly maintain sensitivity according to region for the first sensing electrode TE1, which has a relatively greater length than the second sensing electrode TE2. However, this is merely an example. While the third sensing line TL3 according to an embodiment of the present inventive concept can be omitted, embodiments of the present inventive concept are not limited thereto.

[0095] The sensing pads PDT may be provided in the peripheral area NAA-1. The sensing pads PDT may include a first sensing pad TP1, a second sensing pad TP2, and a third sensing pad TP3. The first sensing pad TP1 may be connected to the first sensing line TL1 and electrically connected to the second sensing electrode TE2. The second sensing pad TP2 may be connected to the second sensing line TL2. The third sensing pad TP3 may be connected to the third sensing line TL3. Therefore, the second sensing pad TP2 and the third sensing pad TP3 may be electrically connected to the first sensing electrode TE1.

[0096] Reference Figure 6A and Figure 6B , input sensing panel ISP (refer to Figure 3A ) may include a sensing circuit layer ML-T and a second base layer BS2. The sensing circuit layer ML-T may be disposed on the second base layer BS2.

[0097] The sensing circuit layer ML-T of the input sensing panel ISP may be defined by a first conductive layer BML, a first sensing insulating layer IL1 disposed on the first conductive layer BML, a second conductive layer UML disposed on the first sensing insulating layer IL1, and a second sensing insulating layer IL2 disposed on the second conductive layer UML.

[0098] The first conductive layer BML may include a first sensing pattern SP1, a second sensing pattern SP2, and a second connection pattern BP2. Furthermore, the first conductive layer BML may further include a floating pattern ILP. The floating pattern ILP may be insulated from the second sensing pattern SP2 and the second connection pattern BP2 and connected to the first sensing pattern SP1. Although not shown, according to an embodiment of the present inventive concept, the first conductive layer BML may include a lower layer of sensing lines TL1, TL2, and TL3. The sensing lines TL1, TL2, and TL3 include multiple conductive layers, and the lower layer of the sensing lines TL1, TL2, and TL3 will be described below.

[0099] The first conductive layer BML may include a transparent conductive material. In this specification, the transparent conductive material may be a material having a light transmittance equal to or greater than a predetermined reference value. For example, although the predetermined reference value is approximately 90%, embodiments of the present invention are not limited thereto. The first conductive layer BML may include a transparent conductive oxide, such as at least one of indium zinc oxide (IZO), indium tin oxide (ITO), indium gallium oxide (IGO), indium zinc gallium oxide (IGZO), and mixtures / compounds thereof. However, embodiments of the present invention are not limited thereto.

[0100] The first sensing insulating layer IL1 may cover the first conductive layer BML, and a plurality of contact holes CH-T may be formed in the first sensing insulating layer IL1 to pass through the first sensing insulating layer IL1 in the third direction DR3 .

[0101] The first sensing insulating layer IL1 may include an inorganic material, and the inorganic material may include at least one of silicon oxide, silicon nitride, silicon oxynitride, titanium oxide, and aluminum oxide.

[0102] The second conductive layer UML may include a first connection pattern BP1. The first connection pattern BP1 may be connected to the first sensing pattern SP1 through a contact hole CH-T in the first sensing insulating layer IL1. Although not shown, the second conductive layer UML according to an embodiment of the present inventive concept may include an upper layer of sensing lines TL1, TL2, and TL3, wherein the sensing lines TL1, TL2, and TL3 include a plurality of conductive layers. The upper layer of the sensing lines TL1, TL2, and TL3 will be described below.

[0103] The second conductive layer UML may include an opaque conductive material. For example, the second conductive layer UML may include a metal such as molybdenum, silver, titanium, copper, aluminum, or an alloy thereof. For example, the alloy may be molybdenum-niobium.

[0104] In an embodiment of the present inventive concept, although four first connection patterns BP1 are exemplarily provided to connect two first sensing patterns SP1, embodiments of the present inventive concept are not limited thereto. Each first connection pattern BP1 may be connected to one first sensing pattern SP1 and one floating pattern ILP. Two first sensing patterns SP1 spaced apart from each other may be electrically connected to each other via the first connection pattern BP1 and the floating pattern ILP.

[0105] The second sensing insulating layer IL2 may cover the second conductive layer UML. The second sensing insulating layer IL2 may include an inorganic material, for example, at least one of silicon oxide, silicon nitride, silicon oxynitride, titanium oxide, and aluminum oxide.

[0106] According to an embodiment of the inventive concept, the first sensing insulating layer IL1 and the second sensing insulating layer IL2 may be connected to Figure 5 The peripheral area NAA-I and the effective area AA-I overlap.

[0107] Figure 7 It shows Figure 5 Enlarged plan view of area QQ' in FIG. Figure 8A It is along Figure 7 A cross-sectional view taken along line II-II'. Figure 8B It shows the corresponding Figure 8A cross-sectional view of the area. Figure 9 It is along Figure 7 A cross-sectional view taken along line III-III'. Figure 10 It shows the corresponding Figure 9 cross-sectional view of the area. Figure 11 It is along Figure 7 A cross-sectional view taken along line IV-IV'. Figures 1 to 6B The same or similar components in the drawings will be denoted by the same or similar reference numerals, respectively, and repeated descriptions thereof will be omitted.

[0108] Despite Figure 7 Enlarged Figure 5 For example, this feature may be applied to each of the sensing lines TL1, TL2, and TL3.

[0109] Reference Figure 7, each of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 according to an embodiment of the inventive concept includes inclined portions ST1, ST2, ST3, and ST4 extending in a direction inclined with respect to each of the first direction DR1 and the second direction DR2. Figure 7 Each of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 includes one inclined portion ST1, ST2, ST3, and ST4, but embodiments of the present inventive concept are not limited thereto. For example, each of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 may include a plurality of inclined portions.

[0110] The first, second, third, and fourth inclined portions ST1, ST2, ST3, and ST4 may face a corner of one of the interconnection patterns CP1 and CP2 (refer to Figure 5 ).exist Figure 7 , the first slanted portion ST1 , the second slanted portion ST2 , the third slanted portion ST3 , and the fourth slanted portion ST4 exemplarily face corners of the first interconnection pattern CP1 .

[0111] The inclined portions ST1, ST2, ST3, and ST4 respectively included in the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 may be for reducing Figure 5 The sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 may be connected to the first interconnection pattern CP1 in a corresponding manner by extending from an area facing a corner of the first interconnection pattern CP1 in a direction inclined with respect to each of the first direction DR1 and the second direction DR2 to reduce unnecessary areas of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4.

[0112] According to this embodiment, the length of each of the inclined portions ST1, ST2, ST3, and ST4 in the inclined direction may decrease in a direction away from the first sensing pattern SP1. Therefore, the sensing line disposed at the outermost portion may have a linear shape extending in the first direction DR1. However, this is merely an example. Although the sensing line disposed at the outermost portion may include an inclined portion having a width smaller than that of each of the inclined portions ST1, ST2, ST3, and ST4, embodiments of the present inventive concept are not limited thereto.

[0113] Figure 8A and Figure 8B is a cross-sectional view illustrating regions of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 excluding the first, second, third, and fourth slanted portions ST1, ST2, ST3, and ST4.

[0114] refer to Figure 8A , Figure 8A It is along Figure 7 In a cross-sectional view taken along line II-II', the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 include lower layers IT1, IT2, IT3, and IT4 and upper layers MO1, MO2, MO3, and MO4 disposed on the second base layer BS2. According to an embodiment, the upper layers MO1, MO2, MO3, and MO4 may contact the lower layers IT1, IT2, IT3, and IT4.

[0115] The lower layers IT1, IT2, IT3 and IT4 can be included in Figure 6A and Figure 6B In the first conductive layer BML described in

[15] , the lower layers IT1, IT2, IT3, and IT4 may include transparent conductive oxides such as indium zinc oxide (IZO), indium tin oxide (ITO), indium gallium oxide (IGO), indium zinc gallium oxide (IGZO), and mixtures / compounds thereof. However, embodiments of the present inventive concept are not limited thereto.

[0116] The upper layers MO1, MO2, MO3 and MO4 can be included in Figure 6A and Figure 6B Thus, the upper layers MO1, MO2, MO3, and MO4 may comprise a metal such as molybdenum, silver, titanium, copper, aluminum, or an alloy thereof. For example, the alloy may be molybdenum-niobium.

[0117] In an embodiment, the upper layers MO1, MO2, MO3, and MO4 may expose a portion of the lower layers IT1, IT2, IT3, and IT4. For example, regions of the lower layers IT1, IT2, IT3, and IT4 that do not overlap with the upper layers MO1, MO2, MO3, and MO4 may be exposed from the upper layers MO1, MO2, MO3, and MO4 and contact the second sensing insulating layer IL2.

[0118] According to embodiments, the upper layers MO1, MO2, MO3, and MO4, which have a relatively large ionization tendency, may react with moisture and oxygen introduced from the outside faster than the lower layers IT1, IT2, IT3, and IT4. Therefore, since the upper layers MO1, MO2, MO3, and MO4 are corroded first, the lower layers IT1, IT2, IT3, and IT4 may not be corroded by the upper layers MO1, MO2, MO3, and MO4.

[0119] Reference Figure 8B , Figure 8B is shown with Figure 8AIn the cross-sectional view of the corresponding region, the upper IT-A layer can completely cover the lower MO-A layer. According to embodiments, since the cross-section of the upper IT-A layer is larger than that of the lower MO-A layer, the upper IT-A layer can further effectively protect the lower MO-A layer from moisture and oxygen introduced from the outside.

[0120] Figure 9 and Figure 10 is a cross-sectional view obtained by cutting a region of the first sensing line SL1 - 1 overlapping the first slanted portion ST1 in a direction inclined with respect to each of the first and second directions DR1 and DR2 .

[0121] refer to Figure 9 , Figure 9 It is along Figure 7 In a cross-sectional view taken along line III-III', the upper layer MO1 of the first sensing line SL1-1 is removed within the first slanted portion ST1, exposing a portion IT-N of the lower layer IT1. Therefore, although moisture and oxygen introduced from the outside may erode the upper layer MO1, the disconnection of the upper layer MO1 within the first slanted portion ST1 prevents further erosion of the upper layer MO1 beyond the predetermined region. Consequently, an input sensing panel ISP with improved reliability can be provided.

[0122] refer to Figure 10 , Figure 10 It shows the corresponding Figure 9 In a cross-sectional view of a region, the upper layer MO1-A of the first sensing line SL1-A is disconnected in the first inclined portion ST1-A in the direction of the inclined portion, exposing portions IT-N1 and IT-N2 of the lower layer IT1-A. According to this embodiment, the lower layer IT1-A may include a plurality of portions exposed by the upper layer MO1-A. For example, the lower layer IT1-A may include a first portion IT-N1 and a second portion IT-N2 spaced apart from the first portion IT-N1.

[0123] Figure 11 It is along Figure 7 1 is a cross-sectional view of inclined portions ST1, ST2, ST3, and ST4 of the sensing lines SL1-1, SL1-2, SL1-3, and SL1-4 taken along line IV-IV'.

[0124] According to this embodiment, when the area overlapping with the corresponding inclined portions ST1, ST2, ST3 and ST4 of the sensing lines SL1-1, SL1-2, SL1-3 and SL1-4 is cut in a direction intersecting the inclined direction, a portion IT-N in the lower layers IT1, IT2, IT3 and IT4 of each of the sensing lines SL1-1, SL1-2, SL1-3 and SL1-4 can be exposed and directly covered by the second sensing insulating layer IL2.

[0125] Figure 12 is an enlarged plan view illustrating one region of an input sensing panel according to an embodiment of the inventive concept. Figure 13 It is along Figure 12 A cross-sectional view taken along line V-V'. Figures 1 to 9 The same or similar components in FIG. 1 will be denoted by the same or similar reference numerals, respectively, and repeated descriptions thereof will be omitted.

[0126] Figure 12 It shows Figure 5 An enlarged view of the first sensing pad TP1 in FIG.

[0127] Reference Figure 12 and Figure 13 , according to the input sensing panel ISP of the embodiment of the present invention (refer to Figure 2 ) can be cut from a mother substrate (not shown) along an edge ISP-E of the input sensing panel ISP, in which a plurality of input sensing panels ISP are arranged and separated into individual input sensing panels ISP. The mother substrate can be cut from the edge ISP-E while being spaced apart from the first sensing pads TP1 by a predetermined margin area MA. One of the first sensing pads TP1 is shown as a first sensing pad TP-T.

[0128] The first sensing pad TP-T adjacent to the edge ISP-E of the input sensing panel ISP may include a lower pad IT-T disposed on the second base layer BS2 and an upper pad MO-T connected to the lower pad IT-T through a contact hole defined in the first sensing insulating layer IL1 surrounding the lower pad IT-T.

[0129] The first sensing pad TP-T is connected to the second circuit board CF2 (reference Figure 2 ) may be a portion of the lower pad IT-T exposed through an opening defined in the second sensing insulating layer IL2. According to an embodiment of the inventive concept, the lower pad IT-T may be included in Figure 6A and Figure 6B The upper pad MO-T may be included in the first conductive layer BML described in the embodiment, and the upper pad MO-T may be included in the second conductive layer UML.

[0130] According to an embodiment of the present inventive concept, when providing the input sensing panel ISP, the first conductive layer BML, the first sensing insulating layer IL1, the second conductive layer UML, and the second sensing insulating layer IL2 located on the second base layer BS2 may be co-deposited and patterned on the front surface of the mother substrate. Therefore, when the input sensing panel ISP is cut separately from the mother substrate, a cross-section of the second conductive layer UML including a metal material may be exposed at the edge ISP-E of the input sensing panel ISP.

[0131] According to an embodiment of the inventive concept, the second conductive layer UML adjacent to the edge ISP-E may be disconnected to expose portions IT-N3 and IT-N4 of the first conductive layer BML, thereby blocking moisture and oxygen introduced from the edge ISP-E of the input sensing panel ISP as a cut section.

[0132] The first portion IT-N3 may be disposed between the margin area MA and the first sensing pad TP1, and the second portion IT-N4 may overlap the margin area MA. Here, one of the first portion IT-N3 and the second portion IT-N4 may be omitted.

[0133] According to an embodiment, a path for moisture and oxygen introduced along the edge ISP-E to be introduced toward the first sensing pad TP-T may be blocked. Therefore, an input sensing panel ISP having improved reliability may be provided.

[0134] According to an embodiment of the present invention, the upper layer in the region overlapping the inclined portion of the sensing line is disconnected in the direction of the tilt, exposing a portion of the lower layer. Therefore, although moisture and oxygen introduced from the outside may erode the upper layer, the disconnection in the region overlapping the inclined portion prevents the upper layer from being eroded. Consequently, an input sensing panel with improved reliability can be provided.

[0135] Although exemplary embodiments of the present invention have been described, it should be understood that the present invention should not be limited to these exemplary embodiments, but various changes and modifications may be made by one of ordinary skill in the art within the spirit and scope of the invention as claimed.

[0136] Therefore, the actual protection scope of the present invention should be determined by the technical scope of the appended claims.

Claims

1. A display device comprising: Display panel; as well as an input sensing panel disposed on the display panel and divided into an active area and a peripheral area adjacent to the active area; Wherein, the input sensing panel includes: base layer; a plurality of sensing electrodes provided on the base layer in the active area and arranged in a first direction and a second direction intersecting each other in an insulated manner; and a plurality of sensing lines disposed in the peripheral area and connected to a plurality of corresponding sensing electrodes among the plurality of sensing electrodes, at least one of the plurality of sensing lines including an inclined portion extending in a direction inclined relative to each of the first direction and the second direction, wherein each of the plurality of sensing lines includes a lower layer and an upper layer, the lower layer being disposed on the base layer and comprising a first conductive material, the upper layer comprising a second conductive material different from the first conductive material and contacting the lower layer, and The upper layer provided in the inclined portion is disconnected in the inclined direction to expose a portion of the lower layer.

2. The display device according to claim 1, wherein The input sensing panel includes: a first conductive layer including a portion of the plurality of sensing electrodes and the lower layer and comprising the same material as the first conductive material; a first sensing insulating layer covering the first conductive layer and defining a plurality of contact holes in the first sensing insulating layer; and The second conductive layer includes another portion of the plurality of sensing electrodes and the upper layer and comprises the same material as the second conductive material.

3. The display device according to claim 2, wherein: The first conductive material includes a transparent conductive oxide, and the second conductive material includes a metal.

4. The display device according to claim 2, wherein The plurality of sensing electrodes include: a first sensing electrode including a plurality of first sensing patterns arranged in the first direction and a plurality of first connection patterns configured to connect the plurality of first sensing patterns; and a second sensing electrode including a plurality of second sensing patterns arranged in the second direction and a plurality of second connection patterns configured to connect the plurality of second sensing patterns; wherein the plurality of first sensing patterns, the plurality of second sensing patterns, and the plurality of second connecting patterns are formed by the first conductive layer, and the plurality of first connecting patterns are formed by the second conductive layer, and The plurality of first connection patterns are connected to the plurality of first sensing patterns through the contact holes.

5. The display device according to claim 4, wherein The first sensing electrode includes a first interconnection pattern extending from a first sensing pattern disposed adjacent to the peripheral area among the plurality of first sensing patterns and connected to a plurality of corresponding sensing lines among the plurality of sensing lines, and The second sensing electrode includes a second interconnection pattern extending from a second sensing pattern disposed adjacent to the peripheral region among the plurality of second sensing patterns and connected to a plurality of corresponding sensing lines among the plurality of sensing lines. The display device according to claim 5 , wherein: The inclined portion of each of the plurality of sensing lines faces a corner of one of the first interconnection pattern and the second interconnection pattern.

7. The display device according to claim 1, wherein The upper layer provided in the inclined portion has a plurality of disconnected portions.

8. The display device according to claim 1, wherein A length of the inclined portion of each of the plurality of sensing lines in the inclined direction gradually decreases in a direction away from the plurality of sensing electrodes.

9. The display device according to claim 1, wherein The upper layer covers the lower layer.

10. The display device according to claim 1, wherein the base layer comprises glass.

Images