Display device

Abstract

The display device includes: a substrate; a first electrode on the substrate; a pixel defining layer having a pixel opening in which the first electrode is in the pixel opening; a light emitting layer in the pixel opening; a second electrode on the light emitting layer and the pixel defining layer; an encapsulation layer on the second electrode; a first sensing electrode portion on the encapsulation layer; a first sensing insulating layer on the first sensing electrode portion; a second sensing electrode portion and a reflective layer disposed on the first sensing insulating layer; and a first light shielding layer and a second light shielding layer on the first sensing insulating layer; wherein at least a portion of a lower surface of the reflective layer is inclined.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2023-0103601 filed in the Korean Intellectual Property Office on August 8, 2023, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to a display device, and more particularly, to a display device in which external light reflectivity is reduced. Background Art

[0004] Display devices, including technologies such as liquid crystal displays (LCDs) and organic light emitting diodes (OLEDs), are designed to present visual content on a screen.

[0005] These display devices are utilized in a wide variety of electronic devices including mobile phones, navigation devices, digital cameras, electronic books, portable game consoles, and various other terminals. Summary of the invention

[0006] Embodiments of the present disclosure provide a display device capable of improving display quality by reducing external light reflection.

[0007] A display device according to an embodiment of the present disclosure includes: a substrate; a first electrode on the substrate; a pixel defining layer having a pixel opening, wherein the first electrode is in the pixel opening; a light emitting layer in the pixel opening; a second electrode on the light emitting layer and the pixel defining layer; an encapsulation layer on the second electrode; a first sensing electrode portion on the encapsulation layer; a first sensing insulating layer on the first sensing electrode portion; a second sensing electrode portion and a reflective layer placed on the first sensing insulating layer; and a first light shielding layer and a second light shielding layer on the first sensing insulating layer; wherein at least a portion of a lower surface of the reflective layer is inclined.

[0008] The second light-shielding layer includes: a second-1 sub-light-shielding layer overlapping the first pixel; a second-2 sub-light-shielding layer overlapping the second pixel; and a second-3 sub-light-shielding layer overlapping the third pixel.

[0009] The display device includes a plurality of second-1 sub-light-shielding layers; each of the plurality of second-1 sub-light-shielding layers has an elliptical shape and has a first major axis, and a first angle between the first major axis and a first direction has at least 2 values.

[0010] The first long axes of the plurality of second-1 sub-light-shielding layers are randomly arranged.

[0011] The first major axes of the plurality of second-1 sub-light-shielding layers are arranged at equal intervals.

[0012] The display device includes a plurality of second-2 sub-light-shielding layers; each of the plurality of second-2 sub-light-shielding layers has an elliptical shape and has a second major axis, and a second angle between the second major axis and the first direction has at least 2 values.

[0013] The second major axes of the plurality of second-2 sub-light-shielding layers are arranged equidistantly or randomly.

[0014] The display device includes a plurality of second-3 sub-light-shielding layers; each of the plurality of second-3 sub-light-shielding layers has an elliptical shape and has a third major axis, and a third angle between the third major axis and the first direction has at least 2 values.

[0015] The third major axes of the plurality of second to 3 sub-light-shielding layers are arranged equidistantly or randomly.

[0016] The major axis of the second-1 sub-light-shielding layer, the major axis of the second-2 sub-light-shielding layer, and the major axis of the second-3 sub-light-shielding layer are arranged in different directions.

[0017] The display device further includes a color filter on the first light shielding layer and the second light shielding layer.

[0018] The second-1 sub-light-shielding layer, the second-2 sub-light-shielding layer, and the second-3 sub-light-shielding layer have different areas from each other.

[0019] The planar shape of the second light-shielding layer is a triangle, a quadrangle, or a pentagon.

[0020] The second light shielding layer overlaps with the light emitting layer; and the first light shielding layer overlaps with the pixel defining layer.

[0021] According to an embodiment of the present disclosure, a display device includes: a substrate; a plurality of first electrodes on the substrate; a pixel defining layer having a plurality of pixel openings overlapping each of the plurality of first electrodes; a plurality of light-emitting layers respectively placed in the plurality of pixel openings of the pixel defining layer; a second electrode on the pixel defining layer and the plurality of light-emitting layers; an encapsulation layer on the second electrode; a lower sensing electrode portion on the encapsulation layer; a first sensing insulating layer on the lower sensing electrode portion; an upper sensing electrode portion on the first sensing insulating layer; a plurality of reflective layers on the first sensing insulating layer and respectively overlapping the plurality of pixel openings; and a plurality of second light-shielding layers on the plurality of reflective layers, wherein the plurality of second light-shielding layers have at least two planar shapes different from each other.

[0022] The second light-shielding layer includes: a second-1 sub-light-shielding layer overlapping the first pixel; a second-2 sub-light-shielding layer overlapping the second pixel; and a second-3 sub-light-shielding layer overlapping the third pixel.

[0023] On a plane, the second-1 sub-light-shielding layer is rotated in a clockwise direction relative to the second-2 sub-light-shielding layer.

[0024] The second-1 sub-light-shielding layer and the second-2 sub-light-shielding layer have different plane areas.

[0025] The first sensing insulating layer includes a first opening exposing a portion of the lower sensing electrode and a plurality of second openings respectively overlapping the plurality of pixel openings.

[0026] The upper sensing electrode portion is in the first opening, and the plurality of reflective layers are in the plurality of second openings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic perspective view illustrating a use state of a display device according to an embodiment of the present disclosure.

[0028] Figure 2 is an exploded perspective view of a display device according to an embodiment of the present disclosure.

[0029] Figure 3 is a block diagram of a display device according to an embodiment of the present disclosure.

[0030] Figure 4 is a schematic plan view of a sensing electrode in a display panel according to an embodiment of the present disclosure.

[0031] Figure 5 is a cross-sectional view illustrating a portion of a display area in a display panel according to an embodiment of the present disclosure.

[0032] Figure 6 is a schematic plan view illustrating a plurality of pixels according to an embodiment of the present disclosure.

[0033] Figure 7 It is shown Figure 6 Part of the floor plan.

[0034] Figure 8 , Fig. 9 , Fig.10 and Fig.11 is a schematic plan view illustrating a plurality of pixels according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0036] The present disclosure may be embodied in many different forms and is not limited to the embodiments set forth herein.

[0037] Throughout the specification, the same reference numerals are assigned to the same or like components.

[0038] In addition, since the size and thickness of each component, layer or region shown in the drawings may be enlarged or exaggerated for convenience of explanation, it should be understood that the present invention is not necessarily limited thereto.

[0039] In addition, when a part such as a layer, film, region or plate is referred to as being “on” or “over” another part, this includes not only the case where the part is “directly on” the other part, but also includes the case where another part exists between the part and the other part.

[0040] In contrast, when a part is referred to as being “directly on” another part, it means that there is no other part between the part and the other part.

[0041] In addition, when a portion is “on” or “over” a reference portion, it may mean that the portion is placed above or below the reference portion.

[0042] In addition, throughout the specification, when a certain component is referred to as “comprising”, it means that the component may further include other components without excluding the other components unless stated otherwise.

[0043] In addition, throughout the specification, when a “planar image” is mentioned, this means when the target portion is viewed from above, and when a “cross-sectional image” is mentioned, this means when a vertically cut cross section of the target portion is viewed from the side.

[0044] In the following, reference will be made to Figures 1 to 3 A schematic structure of a display device is described.

[0045] Figure 1 is a schematic perspective view illustrating a use state of a display device according to an embodiment, Figure 2 is an exploded perspective view of a display device according to an embodiment, and Figure 3 is a block diagram of a display device according to an embodiment.

[0046] refer to Figure 1 The display device 1000 according to the embodiment is a device for displaying a video or a still image. For example, the display device 1000 can be used as a display screen for various products such as mobile phones, smart phones, tablet personal computers, mobile communication terminals, electronic notebooks, electronic books, portable multimedia players (PMPs), navigation devices, ultra mobile personal computers (UMPCs), and televisions, notebooks, monitors, billboards, and Internet of Things (IOT) devices.

[0047] In addition, the display device 1000 may be used for wearable devices such as a smart watch, a watch phone, a glasses type display, and a head mounted display (HMD).

[0048] In addition, the display device 1000 can be used as a dashboard of a car, a central information display (CID) placed on the central instrument panel or dashboard of the car, an interior rearview mirror display for replacing the rearview mirror of the car, and a display placed on the back of the front seats for entertainment facilities in the rear seat of the car.

[0049] For ease of description, Figure 1 It is shown that the display device 1000 is used as a tablet PC.

[0050] The display device 1000 may display an image in the third direction DR3 on a display surface parallel to the first direction DR1 and the second direction DR2 .

[0051] The display surface on which the image is displayed may correspond to the front surface of the display device 1000 , and may correspond to the front surface of the cover window WU.

[0052] The images may include still images as well as dynamic images.

[0053] In the present embodiment, the front surface (or upper surface) and the rear surface (or lower surface) of each member are described based on the direction in which an image is displayed.

[0054] The front surface and the rear surface are opposite to each other in the third direction DR3, and a normal direction of each of the front surface and the rear surface may be parallel to the third direction DR3.

[0055] The offset distance between the front surface and the rear surface may correspond to the display panel DP (see Figure 2 ) in the third direction DR3.

[0056] The display device 1000 may detect a user's input applied from the outside (refer to Figure 1 hand in the middle).

[0057] The user's input may include various types of external inputs such as a part of the user's body, light, heat, or pressure.

[0058] In an embodiment, the user's input is shown as being applied by the user's hand in the foreground.

[0059] However, the present invention is not limited thereto.

[0060] The user input may be provided in various forms. For example, the user input may correspond to a user input of a handheld electronic pen.

[0061] In addition, depending on the structure of the display apparatus 1000 , the display apparatus 1000 may detect a user's input applied to a side surface or a rear surface of the display apparatus 1000 .

[0062] refer to Figure 1 and Figure 2 , the display device 1000 may include a cover window WU, a housing HM, a display panel DP, and an optical element ES.

[0063] In an embodiment, the cover window WU and the housing HM may be combined to form the appearance of the display device 1000 .

[0064] The cover window WU may include an insulating panel.

[0065] For example, the cover window WU may be made of glass, plastic, or a combination thereof.

[0066] The front surface of the cover window WU may form the front surface of the display device 1000 .

[0067] The transmissive area TA may be provided on the front surface of the display device 1000 and form an optically transparent area.

[0068] For example, the transmission area TA may have a visible light transmittance of about 90% or more.

[0069] The blocking area BA may define the shape of the transmission area TA.

[0070] The blocking area BA may be adjacent to the transmission area TA, and may surround the transmission area TA.

[0071] The blocking area BA may have relatively low light transmittance compared to the transmissive area TA.

[0072] The blocking area BA may include an opaque material that blocks light.

[0073] The blocking area BA may have a predetermined color.

[0074] The blocking area BA may be defined by a bezel layer provided separately from the transparent substrate defining the transmission area TA. Alternatively, the blocking area BA may be defined by an ink layer inserted into or colored in the transparent substrate.

[0075] The display panel DP may include a front surface including a display area DA and a non-display area PA.

[0076] The display area DA may be an area where pixels operate according to electrical signals to emit light.

[0077] The non-display area PA of the display panel DP may include a driving unit 50 .

[0078] In an embodiment, the display area DA may be a region including pixels and a region for displaying an image. The display area DA may also be a region where a touch sensor is placed over pixels in the third direction DR3 to sense an external input.

[0079] The transmission area TA of the cover window WU may at least partially overlap the display area DA of the display panel DP.

[0080] For example, the transmission area TA may overlap the entire surface of the display area DA, or may overlap at least a portion of the display area DA.

[0081] Accordingly, the user may view an image through the transmissive area TA, or provide an external input based on the image.

[0082] However, the present invention is not limited thereto.

[0083] For example, within the display area DA, an area where an image is displayed and an area where an external input is sensed may be separated from each other.

[0084] The non-display area PA of the display panel DP may at least partially overlap the blocking area BA of the cover window WU.

[0085] The non-display area PA may be an area covered by the blocking area BA.

[0086] The non-display area PA is adjacent to the display area DA and may surround the display area DA.

[0087] No image is displayed in the non-display area PA. A driving circuit or driving wiring for driving the display area DA may be disposed in the non-display area PA.

[0088] The non-display area PA may include a first peripheral area PA1 located outside the display area DA and a second peripheral area PA2 including the driving unit 50, the connection wiring, and the bending area. The second peripheral area PA2 may be adjacent to one side of the display area DA.

[0089] exist Figure 2 In the embodiment of the present invention, the first peripheral area PA1 is located on three sides of the display area DA, and the second peripheral area PA2 is located on a fourth side of the display area DA.

[0090] In an embodiment, the display panel DP may be assembled in a flat state while the display area DA and the non-display area PA face the cover window WU.

[0091] However, the present invention is not limited thereto.

[0092] A portion of the non-display area PA of the display panel DP may be bent.

[0093] In this configuration, some of the non-display area PA faces the rear surface of the display device 1000, so that the blocking area BA visible on the front side of the display device 1000 can be reduced. Figure 2In the embodiment, the second peripheral area PA2 may be bent and placed on the rear surface of the display area DA, and then assembled.

[0094] In addition, the display panel DP may include component areas EA, for example, a first component area EA1 and a second component area EA2.

[0095] The first and second component areas EA1 and EA2 may be at least partially surrounded by the display area DA.

[0096] The first component area EA1 and the second component area EA2 are illustrated as being spaced apart from each other, but are not limited thereto and may be at least partially connected.

[0097] The first component area EA1 and the second component area EA2 may be areas where components using infrared light, visible light, or sound are disposed below the first component area EA1 and the second component area EA2.

[0098] In the display area DA, a plurality of light emitting diodes and a plurality of pixel circuit units for generating and transmitting light emitting current are provided.

[0099] Here, one light emitting diode and one pixel circuit unit are referred to as a pixel PX.

[0100] In the display area DA, one pixel circuit unit and one light emitting diode are formed one to one. In other words, each pixel circuit unit may correspond to one light emitting diode, but the present disclosure is not limited thereto.

[0101] The first component area EA1 may include a transmission portion through which light and / or sound may pass, and a display portion including a plurality of pixels.

[0102] The transmissive portion is located between adjacent pixels and consists of a layer that allows light and / or sound to penetrate.

[0103] The transmissive portion may be placed between adjacent pixels, and depending on the embodiment, a light-impermeable layer such as a light shielding layer may overlap the first component area EA1.

[0104] The number of pixels per unit area (hereinafter, referred to as resolution) of pixels included in the display area DA (hereinafter, referred to as normal pixels) and the number of pixels per unit area of ​​pixels included in the first component area EA1 (hereinafter, referred to as first component pixels) may be the same.

[0105] The second component area EA2 includes an area made of a transparent layer to allow light to pass therethrough (hereinafter, referred to as a light-transmitting area). In addition, a layer such as a pixel defining layer and / or a light shielding layer may include an opening overlapping a position corresponding to the second component area EA2 so as not to block light.

[0106] The number of pixels per unit area of ​​pixels included in the second component area EA2 (hereinafter, referred to as second component pixels) may be smaller than the number of pixels per unit area of ​​normal pixels included in the display area DA.

[0107] As a result, the resolution of the second component pixels may be lower than the resolution of the normal pixels.

[0108] refer to Figures 1 to 3 , the display panel DP may include a display area DA including display pixels and a touch sensor TS.

[0109] The display panel DP may be visually recognized by a user from the outside through the transmissive area TA, and includes pixels which are components for generating an image.

[0110] In addition, the touch sensor TS may be placed over the pixel and may detect an external input applied from the outside.

[0111] The touch sensor TS may detect an external input provided to the cover window WU.

[0112] Reference again Figure 2 , the second peripheral area PA2 may include a bent portion.

[0113] The display area DA and the first peripheral area PA1 may have a flat state substantially parallel to a plane formed by the first direction DR1 and the second direction DR2. In addition, the second peripheral area PA2 may be flat. The side of the second peripheral area PA2 may extend from the flat state to have a flat state again after passing through the bent portion of the second peripheral area PA2.

[0114] At least a portion of the second peripheral area PA2 may be bent and assembled to be placed at the rear side of the display area DA.

[0115] When assembled, at least a portion of the second peripheral area PA2 overlaps the display area DA in a plane, and thus the blocking area BA of the display device 1000 may be reduced.

[0116] However, the present invention is not limited thereto.

[0117] For example, the second peripheral area PA2 may not be bent.

[0118] The driving unit 50 may be mounted on the second peripheral area PA2, and may be mounted on the bent portion or on one of both sides of the bent portion.

[0119] The driving unit 50 may be provided in the form of a chip.

[0120] The driving unit 50 may be electrically connected to the display area DA to transmit an electrical signal to the display area DA.

[0121] For example, the driving unit 50 may provide a data signal to the pixels PX disposed in the display area DA.

[0122] Alternatively, the driving unit 50 may include a touch driving circuit and may be electrically connected to the touch sensor TS provided in the display area DA.

[0123] The driving unit 50 may include various circuits other than the above-described circuits, or may be designed to supply various electrical signals to the display area DA.

[0124] In the display device 1000, the pad portion may be placed at the end of the second peripheral area PA2 and electrically connected to a flexible printed circuit board (FPCB) including a driving chip.

[0125] Here, the driving chip placed on the flexible printed circuit board may include various driving circuits for driving the display device 1000 or a connector for supplying power.

[0126] According to an embodiment, a rigid printed circuit board (PCB) may be used instead of a flexible printed circuit board.

[0127] The optical element ES may be disposed under the display panel DP.

[0128] The optical element ES may include a first optical element ES1 overlapping the first component area EA1 and a second optical element ES2 overlapping the second component area EA2.

[0129] The first optical element ES1 may be an electronic element using light or sound.

[0130] For example, the first optical element ES1 may be a sensor that receives and uses light, such as an infrared sensor, a sensor that outputs and senses light or sound to measure distance or recognize fingerprints, or a small lamp that outputs light. The first optical element ES1 may also be a speaker that outputs sound, etc.

[0131] In the case of an electronic component using light, light of various wavelength bands such as visible light, infrared light, and ultraviolet light can be used.

[0132] The second optical element ES2 may include at least one of a camera such as an infrared (IR) camera, a dot projector, an infrared illuminator, and a time-of-flight sensor (ToF sensor).

[0133] refer to Figure 3 , the display device 1000 may include a display panel DP, a power module PM, a first electronic module EM1 and a second electronic module EM2.

[0134] The display panel DP, the power module PM, the first electronic module EM1 and the second electronic module EM2 may be electrically connected to each other.

[0135] Figure 3 Display pixels and a touch sensor TS placed in a display area DA are illustrated among components of the display panel DP.

[0136] The power module PM may supply power required for overall operations of the display apparatus 1000 .

[0137] The power module PM may include a battery module.

[0138] The first electronic module EM1 and the second electronic module EM2 may include various functional modules for operating the display device 1000 .

[0139] The first electronic module EM1 may be directly mounted on the motherboard electrically connected to the display panel DP. Alternatively, the first electronic module EM1 may be mounted on a separate board and electrically connected to the motherboard through a connector.

[0140] The first electronic module EM1 may include a control module CM, a wireless communication module TM, an image input module IIM, an audio input module AIM, a memory MM, and an external interface IF.

[0141] Some of the modules may not be mounted on the motherboard and may be electrically connected to the motherboard through a flexible printed circuit board connected to the motherboard.

[0142] The control module CM may control the overall operation of the display apparatus 1000 .

[0143] The control module CM may be a microprocessor.

[0144] For example, the control module CM activates or deactivates the display panel DP.

[0145] The control module CM may control other modules such as the image input module IIM or the audio input module AIM based on the touch signal received from the display panel DP.

[0146] The wireless communication module TM can send / receive radio signals with other terminals using Bluetooth or Wi-Fi lines.

[0147] The wireless communication module TM can send / receive voice signals using a general communication line.

[0148] The wireless communication module TM includes a transmitter TM1 for modulating and transmitting a signal to be transmitted and a receiver TM2 for demodulating a received signal.

[0149] The image input module IIM may process the image signal and convert the image signal into image data that may be displayed on the display panel DP.

[0150] The audio input module AIM may receive an external sound signal through a microphone in a recording mode or a voice recognition mode, and convert the external sound signal into electronic voice data.

[0151] The external interface IF may be used as an interface to connect to an external charger, a wired / wireless data port, and a card socket (eg, a memory card, a subscriber identity module (SIM) / user identity module (UIM) card), and the like.

[0152] The second electronic module EM2 may include an audio output module AOM, a light emitting module LM, a light receiving module LRM, and a camera module CMM, some of which may be optical elements ES, and are located on the rear surface of the display panel DP, such as Figure 1 and Figure 2 as shown in .

[0153] The optical element ES may include a light emitting module LM, a light receiving module LRM, and a camera module CMM.

[0154] In addition, the second electronic module EM2 is directly mounted on the motherboard, mounted on a separate board and electrically connected to the display panel DP through a connector, or connected to the first electronic module EM1.

[0155] The audio output module AOM may convert audio data received from the wireless communication module TM or audio data stored in the memory MM and output the converted audio data to the outside.

[0156] The light emitting module LM may generate and output light.

[0157] The light emitting module LM can output infrared rays.

[0158] For example, the light emitting module LM may include a light emitting diode (LED) element.

[0159] For example, the light receiving module LRM may detect infrared rays.

[0160] When infrared rays of a predetermined level or more are detected, the light receiving module LRM may be activated.

[0161] The light receiving module LRM may include a complementary metal oxide semiconductor (CMOS) sensor.

[0162] After the infrared light generated by the light emitting module LM is output, the infrared light is reflected by an external object (eg, a finger or face of a user), and the reflected infrared light may be incident to the light receiving module LRM.

[0163] The camera module CMM may capture external images.

[0164] In one embodiment, the optical element ES may additionally include a light detection sensor or a heat detection sensor.

[0165] The optical element ES may detect an external object received through the front surface or provide a sound signal such as voice to the outside through the front surface.

[0166] In addition, the optical element ES may include a plurality of elements and is not limited to one embodiment.

[0167] Reference again Figure 2 , the housing HM may be coupled to the cover window WU.

[0168] A cover window WU may be provided on the front surface of the housing HM.

[0169] The housing HM may be coupled to the cover window WU to provide a predetermined receiving space.

[0170] The display panel DP and the optical element ES may be accommodated in a predetermined accommodation space provided between the housing HM and the cover window WU.

[0171] The housing HM may include a material having relatively high rigidity.

[0172] For example, the housing HM may include a plurality of frames and / or plates made of glass, plastic, metal, or a combination thereof.

[0173] The housing HM may stably protect components of the display device 1000 accommodated in the inner space from external impact.

[0174] In the following, reference will be made to Figure 4 A sensing electrode according to an embodiment is described.

[0175] Figure 4 is a schematic plan view of a sensing electrode in a display panel according to an embodiment.

[0176] refer to Figure 4 , a sensing area TCA including a plurality of sensing electrodes 520 and 540 may be placed above the display area DA and above the light emitting diode to recognize a touch.

[0177] The sensing area TCA may be an area where the touch sensor TS is located.

[0178] In the non-display area PA, there may be a signal line or a voltage line (e.g., a driving voltage line, a low driving voltage line, etc.) for transmitting a signal or a voltage to pixels formed in the display area DA, and a pad portion connected to the signal line or the voltage line may be located in the non-display area PA.

[0179] In addition, a plurality of sensing wires 512 and 522 may be further placed in the non-display area PA.

[0180] The plurality of sensing wires 512 and 522 may be connected to the plurality of sensing electrodes 520 and 540 .

[0181] The sensing area TCA may include a plurality of sensing electrodes 520 and 540 .

[0182] The plurality of sensing electrodes 520 and 540 may include a plurality of first sensing electrodes 520 and a plurality of second sensing electrodes 540 that are electrically separated from each other.

[0183] According to an embodiment, the plurality of first sensing electrodes 520 may be sensing input electrodes, and the plurality of second sensing electrodes 540 may be sensing output electrodes.

[0184] However, the present disclosure is not limited thereto, and the plurality of first sensing electrodes 520 may be sensing output electrodes and the plurality of second sensing electrodes 540 may be sensing input electrodes.

[0185] The plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 may be distributed or arranged in a mesh shape so as not to overlap with each other in the sensing area TCA.

[0186] The plurality of first sensing electrodes 520 are arranged along one of the column direction and the row direction (refer to Figure 4 , and the first sensing electrodes 520 are arranged in a second direction DR2), and the plurality of first sensing electrodes 520 are electrically connected to each other through first sensing electrode connecting portions 521 (also referred to as bridges).

[0187] The plurality of second sensing electrodes 540 are arranged along the other direction of the column direction and the row direction (refer to Figure 4 , arranged in the first direction DR1), and the plurality of second sensing electrodes 540 are electrically connected to each other through the second sensing electrode connecting portions 541.

[0188] The plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 may be placed on the same conductive layer.

[0189] According to other embodiments, the plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 may be placed on different conductive layers.

[0190] refer to Figure 4 , the first sensing electrode 520 and the second sensing electrode 540 may have a rhombus shape, but are not limited thereto. For example, depending on the embodiment, the first sensing electrode 520 and the second sensing electrode 540 may have a polygonal shape such as a quadrilateral shape or a hexagonal shape, a circular shape, or an elliptical shape.

[0191] Although the plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 are illustrated as a diamond-shaped integrated structure, it should be understood that one diamond-shaped structure may have openings and a structure in which linear structures are arranged in a grid form.

[0192] In this case, the opening may correspond to a region where the light emitting diode emits light upward.

[0193] In addition, depending on the embodiment, the integrated structure of the plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 may have a shape further including an extension portion to improve the sensitivity of the touch sensor TS.

[0194] The first sensing electrode 520 and the second sensing electrode 540 may be formed of a transparent conductor or an opaque conductor.

[0195] For example, the first sensing electrode 520 and the second sensing electrode 540 may include a transparent conductive oxide (TCO), and the transparent conductive oxide (TCO) may include at least one of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), carbon nanotubes (CNTs), and graphene.

[0196] In addition, the first sensing electrode 520 and the second sensing electrode 540 may have a multi-layered structure including two or more metal layers.

[0197] For example, the first sensing electrode 520 and the second sensing electrode 540 may have a triple-layered structure in which Ti / Al / Ti are stacked.

[0198] In addition, the first sensing electrode 520 and the second sensing electrode 540 may include a plurality of openings.

[0199] The openings formed in the first sensing electrode 520 and the second sensing electrode 540 serve to allow light emitted from the light emitting diode to be emitted to the front without interference.

[0200] When first sensing electrode 520 and second sensing electrode 540 are located on the same layer, one of first sensing electrode connection portion 521 and second sensing electrode connection portion 541 is located on the same layer as first sensing electrode 520 and second sensing electrode 540. The other of first sensing electrode connection portion 521 and second sensing electrode connection portion 541 may be located on a different layer from first sensing electrode 520 and second sensing electrode 540.

[0201] As a result, the plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 may be electrically separated.

[0202] The sensing electrode connection portion located on another layer may be located on a layer above or below the first sensing electrode 520 and the second sensing electrode 540. The embodiments described below will focus on embodiments in which the sensing electrode connection portion is located on a lower layer (eg, a layer closer to the substrate SUB).

[0203] A plurality of sensing wires 512 and 522 connected to the plurality of first sensing electrodes 520 and the plurality of second sensing electrodes 540 , respectively, are placed in the non-display area PA.

[0204] The plurality of first sensing wires 512 may be connected to the plurality of second sensing electrodes 540 arranged in the first direction DR1 , and the plurality of second sensing wires 522 may be connected to the plurality of first sensing electrodes 520 arranged in the second direction DR2 .

[0205] Figure 4 A mutual capacitance type sensing unit is illustrated that senses a touch using two sensing electrodes (eg, first sensing electrode 520 and second sensing electrode 540 ).

[0206] However, depending on the embodiment, the sensing unit may be formed as a self-capacitance type sensing unit that senses a touch using only one sensing electrode.

[0207] In the following, reference will be made to Figure 5 The display device according to the embodiment is further described, focusing on a cross-sectional view of the display area DA.

[0208] Figure 5 is a cross-sectional view illustrating a portion of a display area in a display panel according to an embodiment.

[0209] refer to Figure 5 , the substrate SUB may include a rigid material such as glass or a flexible material such as plastic or polyimide.

[0210] A buffer layer BF may be further disposed on the substrate SUB to planarize the surface of the substrate SUB and block (or prevent) penetration of impurity elements.

[0211] The buffer layer BF may include an inorganic material, and may include, for example, silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y ) of inorganic insulating materials.

[0212] Depending on the embodiment, the buffer layer BF may have a single-layer or multi-layer structure including an inorganic insulating material.

[0213] A barrier layer may be further disposed on the substrate SUB.

[0214] For example, a barrier layer may be placed between the substrate SUB and the buffer layer BF.

[0215] The barrier layer may include, for example, silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y ) of inorganic insulating materials.

[0216] The barrier layer may have a single-layer or multi-layer structure including an inorganic insulating material.

[0217] The semiconductor layer ACT may be disposed on the buffer layer BF.

[0218] The semiconductor layer ACT may include any one of amorphous silicon, polycrystalline silicon, and an oxide semiconductor.

[0219] For example, the semiconductor layer ACT may include low temperature polysilicon (LTPS) or an oxide semiconductor including at least one of zinc (Zn), indium (In), gallium (Ga), tin (Sn), and a mixture thereof.

[0220] For example, the semiconductor layer ACT may include indium gallium zinc oxide (IGZO).

[0221] The semiconductor layer ACT may include a channel region C, a source region S, and a drain region D which are distinguished according to whether they are doped with impurities.

[0222] The source region S and the drain region D may have electrical conductivity corresponding to that of a conductor.

[0223] The first gate insulating layer GI1 may cover the semiconductor layer ACT and the substrate SUB. The first gate insulating layer GI1 may be disposed on the buffer layer BF.

[0224] The first gate insulating layer GI1 may include silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y) of inorganic insulating materials.

[0225] The first gate insulating layer GI1 may have a single-layer or multi-layer structure including the above-described inorganic insulating material.

[0226] The gate electrode GE1 may be disposed on the first gate insulating layer GI1 .

[0227] The gate electrode GE1 may include a metal or a metal alloy such as copper (Cu), molybdenum (Mo), aluminum (Al), silver (Ag), chromium (Cr), tantalum (Ta), or titanium (Ti).

[0228] The gate electrode GE1 may be a single layer or a plurality of layers.

[0229] A region of the semiconductor layer ACT overlapping the gate electrode GE1 on a plane may be a channel region C. In other words, the gate electrode GE1 may overlap the channel region C.

[0230] The second gate insulating layer GI2 is disposed on the gate electrode GE1. The second gate insulating layer GI2 may contact the first gate insulating layer GI1.

[0231] The second gate insulating layer GI2 may include silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y ) of inorganic insulating materials.

[0232] The second gate insulating layer GI2 may have a single-layer or multi-layer structure including the above-described inorganic insulating material.

[0233] The capacitor electrode GE2 may be disposed on the second gate insulating layer GI2.

[0234] The capacitor electrode GE2 may overlap the gate electrode GE1 to form a capacitor.

[0235] The first insulating layer IL1 is placed on the capacitor electrode GE2.

[0236] The first insulating layer IL1 may include silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y ) of inorganic insulating materials.

[0237] The first insulating layer IL1 may have a single-layer or multi-layer structure including the above-described inorganic insulating material.

[0238] The source electrode SE and the drain electrode DE may be disposed on the first insulating layer IL1 .

[0239] The source electrode SE and the drain electrode DE are respectively connected to the source region S and the drain region D of the semiconductor layer ACT through openings formed in the first insulating layer IL1, the second gate insulating layer GI2, and the first gate insulating layer GI1. For example, the source electrode SE may be in direct contact with the source region S through a contact hole in the first insulating layer IL1, the second gate insulating layer GI2, and the first gate insulating layer GI1. Similarly, the drain electrode DE may be in direct contact with the drain region D through a contact hole in the first insulating layer IL1, the second gate insulating layer GI2, and the first gate insulating layer GI1.

[0240] Accordingly, the aforementioned semiconductor layer ACT, the gate electrode GE, the source electrode SE and the drain electrode DE form a transistor.

[0241] Depending on the embodiment, the transistor may include only the source region S and the drain region D of the semiconductor layer ACT without including the source electrode SE and the drain electrode DE.

[0242] The source electrode SE and the drain electrode DE are aluminum (Al), copper (Cu), silver (Ag), gold (Au), platinum (Pt), palladium (Pd), nickel (Ni), molybdenum (Mo), tungsten (W), titanium (Ti), chromium (Cr), tantalum (Ta), another metal or a metal alloy.

[0243] The source electrode SE and the drain electrode DE may be formed of a single layer or a plurality of layers.

[0244] The source electrode SE and the drain electrode DE according to another embodiment may consist of three layers including an upper layer, a middle layer, and a lower layer, and the upper layer and the lower layer may include titanium (Ti) and the middle layer may include aluminum (Al).

[0245] A second insulating layer IL2 may be disposed on the source electrode SE and the drain electrode DE.

[0246] The second insulating layer IL2 covers the source electrode SE and the drain electrode DE. The second insulating layer IL2 may also cover the first insulating layer IL1.

[0247] The second insulating layer IL2 is used to planarize the surface of the substrate SUB having the transistor, and may include one or more substances and may be an organic insulating film selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0248] The first electrode E1 may be disposed on the second insulating layer IL2 .

[0249] The first electrode E1 is also referred to as an anode electrode, and may be composed of a single layer including a transparent conductive oxide layer or a metal material or a plurality of layers including a transparent conductive oxide layer or a metal material.

[0250] The transparent conductive oxide layer may include indium tin oxide (ITO), poly ITO, indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), and indium tin zinc oxide (ITZO).

[0251] The metal material may include silver (Ag), molybdenum (Mo), copper (Cu), gold (Au), and aluminum (Al).

[0252] The first electrode E1 may be physically and electrically connected to the drain electrode DE through the opening of the second insulating layer IL2. For example, the first electrode E1 may directly contact the drain electrode DE through a contact hole in the second insulating layer IL2.

[0253] Accordingly, the first electrode E1 may receive an output current to be transferred from the drain electrode DE to the light emitting layer EML.

[0254] The pixel defining layer PDL and the spacer SPC may be placed on the first electrode E1 and the second insulating layer IL2. For example, the pixel defining layer PDL may be placed on the second insulating layer IL2 and the first electrode E1, and the spacer SPC may be placed on the pixel defining layer PDL.

[0255] The pixel defining layer PDL includes a pixel opening OP1 overlapping at least a portion of the first electrode E1 .

[0256] In this case, the pixel opening OP1 may overlap with the center of the first electrode E1 and may not overlap with the edge of the first electrode E1. The edge of the first electrode E1 may overlap with the pixel defining layer PDL.

[0257] Accordingly, the size of the pixel opening OP1 may be smaller than the size of the first electrode E1 .

[0258] The pixel defining layer PDL may define a formation position of the light emitting layer EML so that the light emitting layer EML may be placed on an exposed portion of the upper surface of the first electrode E1 .

[0259] Each of the pixel defining layer PDL and the spacer SPC may be an organic insulating layer including at least one material selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin. The pixel defining layer PDL may be formed of a black pixel defining layer (BPDL) including a black pigment.

[0260] The light emitting layer EML may be placed in the pixel opening OP1 partitioned by the pixel defining layer PDL.

[0261] The light emitting layer EML may include an organic material emitting red, green, or blue light.

[0262] The light emitting layer EML emitting red, green, or blue light may include a low-molecular or high-molecular organic material.

[0263] Despite Figure 5 The light-emitting layer EML is shown as a single layer, but auxiliary layers such as an electron injection layer, an electron transport layer, a hole transport layer, and a hole injection layer may be included above and below the light-emitting layer EML. For example, the hole injection layer and the hole transport layer may be placed below the light-emitting layer EML, and the electron transport layer and the electron injection layer may be placed above the light-emitting layer EML.

[0264] The second electrode E2 may be disposed on the pixel defining layer PDL and the light emitting layer EML.

[0265] The second electrode E2 may also be referred to as a cathode electrode, and the second electrode E2 may include at least one selected from lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum lithium (Al-Li), calcium (Ca), magnesium indium (Mg-In), magnesium silver (Mg-Ag), ITO and IZO, but is not limited to these.

[0266] In addition, the second electrode E2 may be semi-transparent, and in this case, a microcavity may be formed together with the first electrode E1.

[0267] According to the structure of the microcavity, due to the interval and characteristics between the two electrodes E1 and E2, light of a specific wavelength is emitted upward, and as a result, red, green, or blue can be displayed.

[0268] The first electrode E1, the light emitting layer EML, and the second electrode E2 may form one light emitting element ED.

[0269] The encapsulation layer ENC may be placed on the second electrode E2.

[0270] The encapsulation layer ENC may include at least one inorganic layer and at least one organic layer.

[0271] In the present embodiment, the encapsulation layer ENC may include a first inorganic encapsulation layer EIL1, an organic encapsulation layer EOL, and a second inorganic encapsulation layer EIL2. The first inorganic encapsulation layer EIL1 may be in direct contact with the second electrode E2.

[0272] However, this is merely an example, and the numbers of inorganic and organic layers constituting the encapsulation layer ENC may be variously changed.

[0273] The lower sensing electrode portion MTL1 and the upper sensing electrode portion MTL2 may be placed on the encapsulation layer ENC. For example, the lower sensing electrode portion MTL1 may be in direct contact with the second inorganic encapsulation layer EIL2. In addition, the lower sensing electrode portion MTL1 and the upper sensing electrode portion MTL2 may be in direct contact with each other.

[0274] Although the present specification has a configuration in which the lower sensing electrode part MTL1 is directly placed on the encapsulation layer ENC, the lower sensing insulating layer may be placed between the encapsulation layer ENC and the lower sensing electrode part MTL1 without being limited thereto.

[0275] Lower sensing electrode portion MTL1 may include at least one of the aforementioned plurality of sensing electrodes 520 and 540 , first sensing electrode connection portion 521 , and second sensing electrode connection portion 541 .

[0276] Upper sensing electrode portion MTL2 may include remaining portions of the plurality of sensing electrodes 520 and 540 , first sensing electrode connection portion 521 , and second sensing electrode connection portion 541 described above.

[0277] For example, lower sensing electrode portion MTL1 includes a plurality of sensing electrodes 520 and 540 and first sensing electrode connection portion 521 , and upper sensing electrode portion MTL2 includes second sensing electrode connection portion 541 .

[0278] Alternatively, according to an embodiment, lower sensing electrode portion MTL1 includes second sensing electrode connection portion 541 , and upper sensing electrode portion MTL2 includes a plurality of sensing electrodes 520 and 540 and first sensing electrode connection portion 521 .

[0279] However, the present disclosure is not limited to this configuration and may be modified in various embodiments.

[0280] This specification describes an embodiment in which the lower sensing electrode portion MTL1 includes a sensing electrode connection portion.

[0281] The first sensing insulation layer TL1 may be disposed on the encapsulation layer ENC and the lower sensing electrode portion MTL1 .

[0282] The first sensing insulating layer TL1 may include an inorganic insulating material or an organic insulating material.

[0283] The inorganic insulating material may include at least one of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, and silicon oxynitride.

[0284] The organic insulating material may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, and perylene resin.

[0285] The upper sensing electrode portion MTL2 may be placed on the first sensing insulating layer TL1 .

[0286] As described above, upper sensing electrode portion MTL 2 may include at least one of the plurality of sensing electrodes 520 and 540 , first sensing electrode connection portion 521 , and second sensing electrode connection portion 541 .

[0287] The upper sensing electrode portion MTL 2 may include a plurality of sensing electrodes 520 and 540 and a first sensing electrode connection portion 521 .

[0288] The upper sensing electrode portion MTL2 may be electrically connected to the lower sensing electrode portion MTL1 through a contact hole formed in the first sensing insulating layer TL1 .

[0289] The display device according to the embodiment may further include a reflective layer MTL3 disposed on the same layer as the upper sensing electrode portion MTL2. For example, the reflective layer MTL3 may be disposed between a pair of upper sensing electrode portions MTL2.

[0290] The reflective layer MTL3 may be formed in the same process as the upper sensing electrode portion MTL2 , and may include the same material.

[0291] The reflective layer MTL3 may be disposed on the first sensing insulating layer TL1. A portion of the reflective layer MTL3 may penetrate into the first sensing insulating layer TL1.

[0292] The reflective layer MTL3 may overlap the light emitting layer EML.

[0293] An etching process may be performed in the first sensing insulating layer TL1 to include a contact hole CNT for electrically connecting the lower sensing electrode portion MTL1 and the upper sensing electrode portion MTL2 .

[0294] In the etching process, the recess RC may be formed in a region overlapping the reflective layer MTL3.

[0295] The concave portion RC may have a shape concave from the flat upper surface of the first sensing insulation layer TL1 toward the substrate SUB.

[0296] The recessed portion RC may be recessed from the upper surface of the first sensing insulating layer TL1 at the same height as that of the contact hole CNT.

[0297] The reflective layer MTL3 may have a shape corresponding to a shape of the first sensing insulating layer TL1 contacting the reflective layer MTL3 .

[0298] The reflective layer MTL3 may have a concave shape in a cross-section along the concave portion RC of the first sensing insulation layer TL1 .

[0299] A lower surface of the reflective layer MTL3 may have a curved shape along the concave portion RC.

[0300] Alternatively, the lower surface of the reflective layer MTL3 may have a stepped or inclined surface according to the shape of the concave portion RC.

[0301] The reflective layer MTL3 may cause the light L1 emitted from the light emitting layer EML to be reflected back from a lower surface of the reflective layer MTL3 toward the second electrode E2 .

[0302] The light L1 reflected toward the second electrode E2 may be reflected from the second electrode E2 toward the outside of the display device.

[0303] The second sensing insulation layer TL2 may be disposed on the upper sensing electrode portion MTL2 and the reflective layer MTL3 .

[0304] The second sensing insulating layer TL2 may include an inorganic insulating material or an organic insulating material.

[0305] The inorganic insulating material may include at least one of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, and silicon oxynitride.

[0306] The organic insulating material may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, and perylene resin.

[0307] The light blocking layers BM1 and BM2 and the color filter CF may be disposed on the second sensing insulating layer TL2 .

[0308] The light shielding layers BM1 and BM2 may include a first light shielding layer BM1 and a second light shielding layer BM2.

[0309] The first light blocking layer BM1 may be positioned to overlap the lower and upper sensing electrode portions MTL1 and MTL2 , or may be positioned to overlap at least a portion of the pixel defining layer PDL, and may be spaced apart from the first electrode E1 without overlapping the first electrode E1 .

[0310] Through this configuration, the first electrode E1 and the light emitting layer EML capable of displaying an image are prevented from being covered by the first light shielding layer BM1 , the lower sensing electrode portion MTL1 , and the upper sensing electrode portion MTL2 .

[0311] The second light blocking layer BM2 may overlap the reflective layer MTL3.

[0312] The second light shielding layer BM2 may completely cover the reflective layer MTL3.

[0313] The second light shielding layer BM2 may overlap the first electrode E1 and the light emitting layer EML. The second light shielding layer BM2 may not completely cover the first electrode E1 and the light emitting layer EML.

[0314] The second light blocking layer BM2 may absorb external light L2 incident to the light emitting region and reduce reflection of the external light.

[0315] The color filter CF may be disposed on the first and second light shielding layers BM1 and BM2 and the second sensing insulating layer TL2 .

[0316] The color filters CF include a red color filter that transmits red light, a green color filter that transmits green light, and a blue color filter that transmits blue light.

[0317] Each color filter CF may be positioned to overlap the first electrode E1 of the light emitting element ED in plane.

[0318] Since the light emitted from the light emitting layer EML can be emitted while being changed into a corresponding color when passing through the color filter CF, all the light emitted from the light emitting layer EML can have the same color. In other words, when the light emitted from the light emitting layer EML passes through the color filter CF, it can be changed into a specific color. Therefore, all the light emitted from the light emitting layer EML looks consistent in color.

[0319] However, in the light emitting layer EML, light of different colors may be emitted, and the displayed color may be enhanced by allowing the light to pass through the color filter CF of the same color.

[0320] The first light blocking layer BM1 may be disposed between the color filters CF.

[0321] Depending on the embodiment, the color filter CF may be replaced with a color conversion layer, or may further include a color conversion layer.

[0322] The color conversion layer may include quantum dots.

[0323] A planarization layer TL3 covering the color filter CF is placed on the color filter CF.

[0324] The planarization layer TL3 is used to planarize the upper surface of the display panel, and may be a transparent organic insulating layer including at least one material selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0325] According to an embodiment, a low refractive index layer and a planarization layer may be further disposed on the planarization layer TL3 to improve the front visibility and light emitting efficiency of the display panel.

[0326] Light may be emitted while being refracted to the front surface by the low refractive index layer and the planarization layer having a high refractive property.

[0327] In this case, depending on the embodiment, the low refractive index layer and the planarization layer may be placed directly on the color filter CF, while omitting the planarization layer TL3.

[0328] In the present embodiment, a polarizing plate is not included on the planarization layer TL3.

[0329] When external light is incident from a side wall of the pixel opening OP1 of the pixel defining layer PDL or the first electrode E1 and is reflected, the polarizing plate may serve to prevent display quality from being deteriorated when recognized by a user.

[0330] However, the polarizing plate not only reduces reflection of external light but also reduces light emitted from the light emitting layer EML, so that more power is consumed to display a specific brightness.

[0331] In order to reduce such power consumption, the light-emitting display device of this embodiment may not include a polarizing plate.

[0332] In the following, reference will be made to Figure 6 and Figure 7 The shape of the second light blocking layer BM2 formed in the display area DA is described.

[0333] Figure 6 is a schematic plan view illustrating a plurality of pixels according to an embodiment, and Figure 7 It is shown Figure 6 Part of the floor plan.

[0334] Figure 6 and Figure 7 Pixel openings OP1 , OP2 , and OP3 of the pixel defining layer PDL corresponding to the light emitting layer EML displaying three primary colors of red, green, and blue, and the second light blocking layer BM2 are illustrated.

[0335] The display area DA according to the embodiment may include a first pixel PX1 for emitting red light, a second pixel PX2 for emitting green light, and a third pixel PX3 for emitting blue light.

[0336] For example, Figure 6 As shown in FIG. 1 , the first pixels PX1 and the second pixels PX2 are alternately arranged in one column along the second direction DR2 , and in another column adjacent to the column, the third pixels PX3 are repeatedly arranged.

[0337] However, the present disclosure is not limited to this arrangement, and the first pixel PX1 , the second pixel PX2 , and the third pixel PX3 may be arranged in a different form.

[0338] The second light shielding layer BM2 includes a second-1 sub-light shielding layer BM2a overlapping the first pixel PX1, a second-2 sub-light shielding layer BM2b overlapping the second pixel PX2, and a second-3 sub-light shielding layer BM2c overlapping the third pixel PX3.

[0339] The second-1 sublight-shielding layer BM2a may overlap the light emitting layer EML emitting red light, the second-2 sublight-shielding layer BM2b may overlap the light emitting layer EML emitting green light, and the second-3 sublight-shielding layer BM2c may overlap the light emitting layer EML emitting blue light.

[0340] The second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c have the same elliptical shape.

[0341] The second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c have the same length of major axis and minor axis.

[0342] Each of the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c has an elliptical plane shape having the same eccentricity.

[0343] Each of the second-1 sub light-shielding layer BM2a, the second-2 sub light-shielding layer BM2b, and the second-3 sub light-shielding layer BM2c may have an eccentricity of 0.2 or more and 0.85 or less.

[0344] Here, the ellipse has two foci. For example, the ellipse may have a shape connecting points whose sum of distances to the two foci is constant, and may have a major axis and a minor axis.

[0345] On the other hand, the eccentricity of an ellipse is a value obtained by dividing the distance between two foci by the length of the major axis of the ellipse.

[0346] If the eccentricity is 0, it is a circle, and if the eccentricity is 1, it forms a parabola, so an ellipse has eccentricity values ​​greater than 0 and less than 1.

[0347] A ratio of a major axis to a minor axis of the second-1 sub-light-shielding layer BM2a may be 1:1 to 2:1.

[0348] When the ratio of the major axis to the minor axis of the second-1 sub light-shielding layer BM2a exceeds 2:1, as the area occupied by the second-1 sub light-shielding layer BM2a decreases, reflectivity of external light may increase.

[0349] In addition, the length of the major axis of the second-1 sub-light-shielding layer BM2 a may be shorter than the length of the short side of the first pixel PX1 .

[0350] This may enable the second-1 sub-light-shielding layer BM2a to rotate at various angles within the first pixel PX1.

[0351] The display device according to the embodiment includes a plurality of second-1 sub-light-shielding layers BM2a.

[0352] When the angle formed by the major axis of the second-1 sub-light-shielding layer BM2 a and the first direction DR1 is the first angle θ1, the first angle θ1 may have at least two different angle values.

[0353] For example, the first angle θ1 may have at least three different angle values, at least four different angle values, or at least five different angle values.

[0354] The plurality of long axes of the plurality of second-1 sub-light-shielding layers BM2a may be variously arranged at irregular intervals, or variously arranged at regular intervals.

[0355] In an embodiment in which the major axes of the second-1 sub-light-shielding layers BM2a are arranged at unequal intervals, this arrangement may be performed to reduce a diffraction pattern, or may be performed due to a process error.

[0356] Long axes of the plurality of second-1 sub-light-shielding layers BM2a may be variously arranged at intervals of 90 degrees or less, 60 degrees or less, 45 degrees or less, or 36 degrees or less.

[0357] For example, when the angles of the long axes of the second-1 sub-light-shielding layer BM2a are formed at intervals of 36 degrees and one long axis has 0 degrees relative to the first direction DR1, the other long axes can have angles of 36 degrees, 72 degrees, 108 degrees and 144 degrees relative to the first direction DR1, for a total of 5 angles.

[0358] To check the five angles, divide the angle of 180 degrees by 5 (which is the number of directions). This calculation divides the angles of the major axis by 180 degrees to determine the intervals between the angles.

[0359] A ratio of a major axis to a minor axis of the second-2 sub-light-shielding layer BM2b may be 1:1 to 2:1.

[0360] When the ratio of the major axis to the minor axis of the second-2 sub light-shielding layer BM2b exceeds 2:1, as the area occupied by the second-2 sub light-shielding layer BM2b decreases, reflectivity of external light may increase.

[0361] In addition, the length of the major axis of the second-2 sub-light-shielding layer BM2b may be shorter than the length of the short side of the second pixel PX2.

[0362] This may enable the second-2 sub-light-shielding layer BM2b to rotate at various angles within the second pixel PX2.

[0363] The display device according to the embodiment includes a plurality of second-2 sub-light shielding layers BM2b.

[0364] When the angle formed by the major axis of the second-2 sub-light-shielding layer BM2 b and the first direction DR1 is the second angle θ2, the second angle θ2 may have at least two different angle values.

[0365] For example, the second angle θ2 may have at least three different angle values, at least four different angle values, or at least five different angle values.

[0366] The plurality of long axes of the plurality of second-2 sub-light-shielding layers BM2b may be variously arranged at irregular intervals, or variously arranged at regular intervals.

[0367] In an embodiment in which the major axes of the second-2 sub-light-shielding layers BM2b are arranged at unequal intervals, they may be arranged to reduce a diffraction pattern, or they may be arranged at unequal intervals due to a process error.

[0368] Long axes of the plurality of second-2 sub-light-shielding layers BM2b may be variously arranged at intervals of 90 degrees or less, 60 degrees or less, 45 degrees or less, or 36 degrees or less.

[0369] For example, when the angles of the long axes of the second-2 sub-light-shielding layer BM2b are formed at intervals of 36 degrees and one long axis has 0 degrees relative to the first direction DR1, the other long axes can have angles of 36 degrees, 72 degrees, 108 degrees and 144 degrees relative to the first direction DR1, for a total of 5 angles.

[0370] To determine the five angles, divide the 180 degree angle by 5 (which is the number of directions). This method calculates the intervals between the angles of the major axis. Since two angles with 180 degrees in the 360 ​​degree angle are substantially in the same direction as the major axis of the ellipse, the calculation of the intervals is based on 180 degrees divided by the number.

[0371] A ratio of a major axis to a minor axis of the second-3 sub-light-shielding layer BM2c may be 1:1 to 2:1.

[0372] When the ratio of the major axis to the minor axis of the second-3 sub light-shielding layer BM2c exceeds 2:1, as the area occupied by the second-3 sub light-shielding layer BM2c decreases, reflectivity of external light may increase.

[0373] In addition, the length of the long axis of the second-3 sub-light blocking layer BM2c may be shorter than the length of the short side of the third pixel PX3.

[0374] This may enable the second-3 sub-light shielding layer BM2c to rotate at various angles within the third pixel PX3.

[0375] The display device according to the embodiment includes a plurality of second-3 sub-light-shielding layers BM2c.

[0376] When the angle formed by the major axis of the second-3 sub light-shielding layer BM2 c and the first direction DR1 is the third angle θ3, the third angle θ3 may have at least two different angle values.

[0377] For example, the third angle θ3 may have at least three different angle values, at least four different angle values, or at least five different angle values.

[0378] The plurality of long axes of the plurality of second-3 sub-light-shielding layers BM2c may be variously arranged at irregular intervals, or variously arranged at regular intervals.

[0379] In an embodiment in which the major axes of the second-3 sub-light-shielding layers BM2c are arranged at unequal intervals, they may be intentionally arranged to reduce a diffraction pattern, or may be arranged at unequal intervals due to a process error.

[0380] The major axes of the second-3 sub-light-shielding layers BM2c may be variously arranged at intervals of 90 degrees or less, 60 degrees or less, 45 degrees or less, or 36 degrees or less.

[0381] For example, when the angles of the long axes of the second-3 sub-light-shielding layer BM2c are formed at intervals of 36 degrees and one long axis has 0 degrees relative to the first direction DR1, the other long axes can have angles of 36 degrees, 72 degrees, 108 degrees and 144 degrees relative to the first direction DR1, for a total of 5 angles.

[0382] To determine the five angles, divide the 180 degree angle by 5 (which is the number of directions). This division helps check the spacing between the angles of the major axis. This means that two angles with an angle of 180 degrees out of the 360 ​​degrees correspond to the same direction as the major axis of the ellipse. Therefore, the calculation of the spacing involves dividing the number based on 180 degrees.

[0383] As discussed, the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c each have an elliptical shape, and the directions in which the major axes of the ellipses are oriented may be randomly arranged.

[0384] like Figure 7 As shown in , the degree of reflection of external light may vary according to the direction of the major axis of the ellipse of the second light shielding layer BM2.

[0385] In this case, since the major axes of the second-1 sub-light shielding layer BM2a, the second-2 sub-light shielding layer BM2b, and the second-3 sub-light shielding layer BM2c are disposed at different angles, uniformity is obtained throughout the display device. Therefore, the second light shielding layer BM2 may have external light reflection characteristics.

[0386] Accordingly, external light reflection characteristics such as color separation and diffraction pattern can be improved.

[0387] In the following, reference will be made to Figures 8 to 11 A display device according to another embodiment is described.

[0388] Figure 8 , Fig. 9 , Fig.10 and Fig.11 is a schematic plan view illustrating a plurality of pixels according to an embodiment.

[0389] refer to Figure 8 , the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c according to the embodiment have elliptical shapes having different sizes.

[0390] The second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have different areas. For example, the second-3 sub-light-shielding layer BM2c may be larger than each of the second-1 sub-light-shielding layer BM2a and the second-2 sub-light-shielding layer BM2b. In addition, the second-2 sub-light-shielding layer BM2b may be smaller than the second-1 sub-light-shielding layer BM2a.

[0391] The lengths of the major and minor axes of the second-1 sublight-shielding layer BM2a, the second-2 sublight-shielding layer BM2b, and the second-3 sublight-shielding layer BM2c may be different.

[0392] In addition, the ratio of the major axis to the minor axis of the second-1 sublight-shielding layer BM2a, the ratio of the major axis to the minor axis of the second-2 sublight-shielding layer BM2b, and the ratio of the major axis to the minor axis of the second-3 sublight-shielding layer BM2c may be different.

[0393] In addition, depending on the embodiment, the eccentricity of the second-1 sub-light-shielding layer BM2a, the eccentricity of the second-2 sub-light-shielding layer BM2b, and the eccentricity of the second-3 sub-light-shielding layer BM2c may be different.

[0394] Although the present specification shows an embodiment in which the sizes of the second-3 sub-light-shielding layer BM2c, the second-1 sub-light-shielding layer BM2a, and the second-2 sub-light-shielding layer BM2b are sequentially reduced, the present disclosure is not limited thereto. For example, the sizes of the second-3 sub-light-shielding layer BM2c, the second-1 sub-light-shielding layer BM2a, and the second-2 sub-light-shielding layer BM2b may be modified differently.

[0395] The degree of reflection of red light, green light, and blue light may vary, and the sizes of the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may be adjusted depending on the degree of external light reflection.

[0396] refer to Fig. 9 , each of the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have a triangular shape in a plan view.

[0397] In the first pixel PX1, the second-1 sub-light-shielding layer BM2a may be disposed in a random direction.

[0398] When an angle formed between a first imaginary line passing through one vertex of the second-1 sub-light-shielding layer BM2 a and the first direction DR1 is a fourth angle θ4 , the fourth angle θ4 may have at least two values.

[0399] The second-1 sub-light-shielding layer BM2a may be disposed within the first pixel PX1 so that the fourth angle θ4 has various values.

[0400] The second-1 sub-light-shielding layer BM2a may be disposed so that the fourth angles θ4 have equal or unequal intervals.

[0401] In the second pixel PX2, the second-2 sub-light-shielding layer BM2b may be disposed in a random direction.

[0402] When an angle formed between a second imaginary line passing through one vertex of the second-2 sub light-shielding layer BM2 b and the first direction DR1 is a fifth angle θ5 , the fifth angle θ5 may have at least two values.

[0403] The second-2 sub light-shielding layer BM2b may be disposed within the second pixel PX2 so that the fifth angle θ5 has various values.

[0404] The second-2 sub-light-shielding layers BM2b may be arranged so that the fifth angles θ5 have equal or unequal intervals.

[0405] In the third pixel PX3, the second-3 sub-light shielding layer BM2c may be disposed in a random direction.

[0406] When an angle formed between a third imaginary line passing through one vertex of the second-3 sub light-shielding layer BM2 c and the first direction DR1 is a sixth angle θ6 , the sixth angle θ6 may have at least two values.

[0407] The second-3 sub light-shielding layer BM2c may be disposed within the third pixel PX3 so that the sixth angle θ6 has various values.

[0408] The second-3 sub-light-shielding layers BM2 c may be arranged such that the sixth angles θ6 have equal or unequal intervals.

[0409] According to an embodiment, the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have the same area or different areas.

[0410] refer to Fig.10 , each of the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have a rectangular shape on a plane.

[0411] In the first pixel PX1, the second-1 sub-light-shielding layer BM2a may be disposed in a random direction. For example, the second-1 sub-light-shielding layer BM2a may be inclined with respect to the first direction DR1 and / or the second direction DR2.

[0412] When an angle formed between a first imaginary line passing through one vertex of the second-1 sub-light-shielding layer BM2 a and the first direction DR1 is a seventh angle θ7 , the seventh angle θ7 may have at least two values.

[0413] The second-1 sub-light blocking layer BM2a may be disposed in the first pixel PX1 so that the seventh angle θ7 has various values.

[0414] The second-1 sub-light-shielding layer BM2 a may be arranged so that the seventh angles θ7 have equal or unequal intervals.

[0415] In the second pixel PX2, the second-2 sub-light-shielding layer BM2b may be disposed in a random direction. For example, the second-2 sub-light-shielding layer BM2b may be inclined with respect to the first direction DR1 and / or the second direction DR2.

[0416] When an angle formed between a second imaginary line passing through one vertex of the second-2 sub light-shielding layer BM2 b and the first direction DR1 is an eighth angle θ8, the eighth angle θ8 may have at least two values.

[0417] The second-2 sub light-shielding layer BM2b may be disposed within the second pixel PX2 so that the eighth angle θ8 has various values.

[0418] The second-2 sub-light-shielding layers BM2b may be arranged so that the eighth angles θ8 have equal or unequal intervals.

[0419] In the third pixel PX3, the second-3 sub-light-shielding layer BM2c may be disposed in a random direction. For example, the second-3 sub-light-shielding layer BM2c may be inclined with respect to the first direction DR1 and / or the second direction DR2.

[0420] When an angle formed between a third imaginary line passing through any one vertex of the second-3 sub light-shielding layer BM2 c and the first direction DR1 is a ninth angle θ9, the ninth angle θ9 may have at least two values.

[0421] The second-3 sub light-shielding layer BM2c may be disposed within the third pixel PX3 so that the ninth angle θ9 has various values.

[0422] The second-3 sub-light-shielding layer BM2c may be disposed so that the ninth angles θ9 have equal or unequal intervals.

[0423] In addition, the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have the same area or different areas depending on the embodiment.

[0424] refer to Fig.11 , each of the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have a pentagonal shape in a plan view.

[0425] In the first pixel PX1, the second-1 sub-light-shielding layer BM2a may be disposed in a random direction.

[0426] When an angle formed between a first imaginary line passing through one vertex of the second-1 sub-light-shielding layer BM2 a and the first direction DR1 is a tenth angle θ10 , the tenth angle θ10 may have at least two values.

[0427] The second-1 sub-light-shielding layer BM2a may be disposed in the first pixel PX1 so that the tenth angle θ10 has various values.

[0428] The second-1 sub-light-shielding layers BM2 a may be arranged so that the tenth angles θ10 have equal or unequal intervals.

[0429] In the second pixel PX2, the second-2 sub-light-shielding layer BM2b may be disposed in a random direction.

[0430] When an angle formed between a second imaginary line passing through one vertex of the second-2 sub light-shielding layer BM2 b and the first direction DR1 is an eleventh angle θ11, the eleventh angle θ11 may have at least two values.

[0431] The second-2 sub-light-shielding layer BM2b may be disposed in the second pixel PX2 so that the eleventh angle θ11 has various values.

[0432] The second-2 sub-light-shielding layers BM2 b may be arranged so that the eleventh angles θ11 have equal or unequal intervals.

[0433] In the third pixel PX3, the second-3 sub-light shielding layer BM2c may be disposed in a random direction.

[0434] When an angle between a third imaginary line passing through one vertex of the second-3 sub light-shielding layer BM2 c and the first direction DR1 is a twelfth angle θ12 , the twelfth angle θ12 may have at least two values.

[0435] The second-3 sub light-shielding layer BM2c may be disposed within the third pixel PX3 so that the twelfth angle θ12 has various values.

[0436] The second-3 sub-light-shielding layers BM2 c may be arranged such that the twelfth angles θ12 have equal or unequal intervals.

[0437] In addition, the second-1 sub-light-shielding layer BM2a, the second-2 sub-light-shielding layer BM2b, and the second-3 sub-light-shielding layer BM2c may have the same area or different areas depending on the embodiment.

[0438] Although the embodiments of the present disclosure have been described in detail above, the present disclosure is not limited thereto. For example, a person skilled in the art can make various modifications using the teachings of the present disclosure described herein.

Claims

1. A display device, comprising: substrate; a first electrode on the substrate; A pixel defining layer having a pixel opening, wherein the first electrode is in the pixel opening; a light emitting layer in the pixel opening; a second electrode, on the light-emitting layer and the pixel defining layer; an encapsulation layer, on the second electrode; A first sensing electrode portion, on the packaging layer; a first sensing insulating layer, on the first sensing electrode portion; A second sensing electrode portion and a reflective layer are disposed on the first sensing insulating layer; and A first light shielding layer and a second light shielding layer, on the first sensing insulating layer; Wherein, at least a portion of the lower surface of the reflective layer is inclined.

2. The display device according to claim 1, wherein: The second light shielding layer comprises: The second-1 sub-light shielding layer overlaps with the first pixel; A second-2 sub-light shielding layer overlapping the second pixel; and The second-3 sub-light shielding layer overlaps with the third pixel.

3. The display device according to claim 2, wherein: The display device comprises a plurality of second-1 sub-light shielding layers; Each of the plurality of second-1 sub-light-shielding layers has an elliptical shape and has a first major axis; and A first angle between the first major axis and the first direction has at least 2 values.

4. The display device according to claim 3, wherein: The first long axes of the plurality of second-1 sub-light-shielding layers are randomly arranged.

5. The display device according to claim 3, wherein: The first long axes of the plurality of second-1 sub-light-shielding layers are arranged at equal intervals.

6. The display device according to claim 2, wherein: The display device comprises a plurality of second-2 sub-light shielding layers; Each of the plurality of second-2 sub-light-shielding layers has an elliptical shape and has a second major axis; a second angle between the second major axis and the first direction has at least 2 values; and The second major axes of the plurality of second-2 sub-light-shielding layers are arranged equidistantly or randomly.

7. The display device according to claim 2, wherein: The display device comprises a plurality of second-3 sub-light shielding layers; Each of the plurality of second-3 sub-light shielding layers has an elliptical shape and has a third major axis; A third angle between the third major axis and the first direction has at least 2 values; and The third major axes of the plurality of second-3 sub-light-shielding layers are arranged equidistantly or randomly.

8. The display device according to claim 2, wherein: The major axis of the second-1 sub-light-shielding layer, the major axis of the second-2 sub-light-shielding layer, and the major axis of the second-3 sub-light-shielding layer are arranged in different directions.

9. The display device according to claim 2, wherein: The second-1 sub-light-shielding layer, the second-2 sub-light-shielding layer, and the second-3 sub-light-shielding layer have different areas from each other.

10. The display device according to any one of claims 1 to 9, wherein: The second light shielding layer overlaps with the light emitting layer; and The first light shielding layer overlaps with the pixel defining layer.

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