Display device

Abstract

A display device includes: a display panel including a display area in which a plurality of pixels are arranged and a component area adjacent to the display area, in which a first hole is provided in the display panel and overlaps the component area; and a metal plate disposed below the display panel, in which the second hole is disposed in the metal plate and overlaps the first hole, and in which the first groove is disposed in the metal plate and is spaced apart from the second hole.

Description

TECHNICAL FIELD

[0001] The embodiments of the present utility model relate to display devices. BACKGROUND

[0002] A display device is a device that displays an image, and is used to provide information to a user in a visual form. Recently, the thickness and weight of display devices have become increasingly thinner and lighter, and the range of use of display devices has become increasingly wider.

[0003] As the display area among display devices becomes larger, various functions can be added to the display area. For example, optical components such as a camera, a proximity sensor, etc. can be added to the enlarged display area. However, the optical components should be positioned to face the outside of the display device to recognize light. Therefore, a hole (or a component area) can be formed in a portion of the display area, and the optical components can be disposed in the hole. SUMMARY

[0004] According to the embodiments of the present utility model, the display device includes a display panel including a display area in which a plurality of pixels are disposed and a component area adjacent to the display area, wherein a first hole is disposed in the display panel and overlaps the component area; and a plate disposed below the display panel, wherein a second hole is disposed in the plate and overlaps the first hole, and wherein a first recess is disposed in the plate and is spaced apart from the second hole.

[0005] In the embodiments of the present utility model, the plate includes a first surface facing the display panel and a second surface opposite to the first surface, and the first recess is disposed in the second surface.

[0006] In the embodiments of the present utility model, the first recess surrounds the second hole.

[0007] In the embodiments of the present utility model, the first recess has a shape of a ring.

[0008] In the embodiments of the present utility model, a second recess is disposed in the plate and is spaced apart from the first recess.

[0009] In the embodiments of the present utility model, the plate includes a first surface facing the display panel and a second surface opposite to the first surface, and each of the first recess and the second recess is disposed in the second surface.

[0010] In the embodiments of the present utility model, each of the first recess and the second recess is a portion in which a portion of the plate is removed from the second surface of the plate.

[0011] In the embodiments of the present utility model, an edge of the plate has a chamfered shape in a cross-sectional view.

[0012] In the embodiment of the present application, the display device further comprises a conductive light-blocking member covering the side surface of the display panel exposed through the first hole.

[0013] According to the embodiment of the present application, the display device comprises: a display panel comprising a display area in which a plurality of pixels are arranged and an auxiliary area adjacent to the display area, wherein the display panel comprises a first hole overlapping the auxiliary area; and a plate provided on the display panel, wherein the plate comprises a second hole and a first groove, wherein the second hole overlaps the first hole, and the first groove is spaced apart from the second hole. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other features of the present application will become more apparent by describing in detail embodiments thereof with reference to the attached drawings in which:

[0015] Figure 1 is a plan view showing a display device according to an embodiment of the present application.

[0016] Figure 2 is a plan view showing Figure 1 an example of the area A.

[0017] Figure 3 is a cross-sectional view of the display device of Figure 2 taken along line I-I' thereof. Figure 2

[0018] Figure 4 is an enlarged cross-sectional view of a metal plate included in the display device of Figure 3

[0019] Figure 5 is a cross-sectional view showing a pixel included in the display device of Figure 2

[0020] Figure 6 is a plan view showing another example of the area A of Figure 1

[0021] Figure 7 is a cross-sectional view of an example of the display device of Figure 6 taken along line II-II' thereof. Figure 6

[0022] Figure 8 Figure 7 is an enlarged cross-sectional view of a metal plate included in the display device of

[0023] Figure 9 is a cross-sectional view of another example of the display device of Figure 6 taken along line II-II' thereof. Figure 6 ​​​​​​​

[0024] Figure 10 is an enlarged sectional view of a metal plate included in a display apparatus of Figure 9 DETAILED DESCRIPTION

[0025] Hereinafter, a display apparatus according to an embodiment of the present application will be described in greater detail with reference to the accompanying drawings. In the drawings and specification, like reference numerals will be used to refer to like parts throughout. Redundant descriptions of the same parts will be omitted or briefly discussed.

[0026] Figure 1 is a plan view illustrating a display apparatus according to an embodiment of the present application. Figure 2 is a plan view illustrating an example of a region A of Figure 1 Referring to

[0027] and Figure 1 , the display apparatus DD can include a display region DA, a non-display region NDA, and a component region CA. The display region DA can be a region in which an image is displayed by generating light or adjusting transmittance of light provided from an external light source. Figure 2 A plurality of pixels PX can be disposed in the display region DA. Each of the plurality of pixels PX can be a region in which light is emitted to the outside of the display apparatus DD from a light emitting element (e.g., a light emitting element LED of

[0028] Figure 5

[0029] The plurality of pixels PX can be repeatedly arranged in a first direction DR1 and a second direction DR2 intersecting the first direction DR1 in a plan view. In an embodiment of the present application, the plurality of pixels PX can not be disposed in the component region CA. However, the present application is not limited thereto, and in an embodiment of the present application, some of the plurality of pixels PX can be disposed in the component region CA. In this case, light can be emitted not only from the display region DA but also from the component region CA.

[0030] A component for transmitting a signal to the display region DA can be disposed in the non-display region NDA. For example, a driver can be disposed in the non-display region NDA. The driver can provide a signal or a voltage to the plurality of pixels PX. For example, the driver can include a data driver, a gate driver, etc. The non-display region NDA can not display an image. The non-display region NDA can be disposed around the display region DA. For example, the non-display region NDA can surround at least a portion of the display region DA.

[0031] ​​​The component area CA can be in contact with the display area DA. For example, the component area CA can be disposed inside the display area DA. The component area CA can be disposed between adjacent pixels among the plurality of pixels PX. An optical component such as a camera, a proximity sensor, or the like can be disposed in the component area CA. For example, the component area CA can be referred to as an auxiliary area.

[0032] In an embodiment of the present application, the component area CA can be disposed at an upper center of the display area DA. In an embodiment of the present application, the component area CA can be disposed at an upper left of the display area DA. In an embodiment of the present application, the component area CA can be disposed at an upper right of the display area DA.

[0033] In an embodiment of the present application, the component area CA can have a circular shape in a plan view. However, the present application is not limited thereto, and in an embodiment of the present application, the component area CA can have a shape different from the circular shape in a plan view. For example, the component area CA can have a polygonal shape in a plan view.

[0034] In an embodiment of the present application, a first direction DR1 and a second direction DR2 intersecting the first direction DR1 can be defined. In addition, a third direction DR3 perpendicular to a plane formed by the first direction DR1 and the second direction DR2 can be defined.

[0035] Figure 3 is a cross-sectional view of the display device of Figure 2 Figure 2 is a cross-sectional view of the display device of Figure 4 is an enlarged cross-sectional view of a metal plate included in the display device of Figure 3

[0036] Referring to Figure 2 and Figure 3 , the display device DD according to an embodiment of the present application can include a cover window CW, a first adhesive layer AD1, a polarizing plate POL, a second adhesive layer AD2, a display panel PNL, a third adhesive layer AD3, a protective film PF, a fourth adhesive layer AD4, a metal plate MP1, and a conductive light-blocking member CB.

[0037] The cover window CW can transmit light emitted from the display panel PNL. For example, the cover window CW can be disposed on the polarizing plate POL. The cover window CW can protect the polarizing plate POL, the display panel PNL, or the like from external impact, heat, humidity, or the like. The cover window CW can include a material having impact resistance and light transmittance.

[0038] ​​For example, the cover window CW can be made of glass, or can include a film made of a plastic material such as polyimide, polymethyl methacrylate (“PMMA”), polyethylene terephthalate (“PET”), or the like. These materials can be used alone or in combination with each other. However, this is merely an example, and the cover window CW can include other kinds of materials.

[0039] A first adhesive layer AD1 can be disposed under the cover window CW. The first adhesive layer AD1 can be disposed under the cover window CW to provide an adhesive force to the cover window CW. The first adhesive layer AD1 can define a third hole H3. For example, the third hole H3 can be defined through the first adhesive layer AD1. For example, the third hole H3 can be disposed in the first adhesive layer AD1. For example, the third hole H3 can have a circular shape in a plan view; however, the present disclosure is not limited thereto. The third hole H3 can overlap with the component area CA in a plan view.

[0040] For example, the first adhesive layer AD1 can include an optical clear adhesive (“OCA”), an optical clear resin (“OCR”), a pressure sensitive adhesive (“PSA”), or the like. These materials can be used alone or in combination with each other.

[0041] A polarizing plate POL can be disposed under the first adhesive layer AD1. The polarizing plate POL can selectively transmit light to reduce reflection of external light incident on the display panel PNL. For example, the display panel PNL can include a metal material in a transistor, a wiring, or the like. Accordingly, external light incident on the display panel PNL can be reflected from the metal material, and thus visibility of the display device DD can be reduced. Accordingly, the polarizing plate POL can be disposed on one surface of the display panel PNL to prevent reflection of external light.

[0042] A second adhesive layer AD2 can be disposed under the polarizing plate POL. The second adhesive layer AD2 can provide an adhesive force to the polarizing plate POL.

[0043] For example, the second adhesive layer AD2 can include an optical clear adhesive (“OCA”), an optical clear resin (“OCR”), a pressure sensitive adhesive (“PSA”), or the like. These materials can be used alone or in combination with each other.

[0044] A display panel PNL can be disposed under the second adhesive layer AD2. The display panel PNL can include a plurality of pixels PX. Each of the plurality of pixels PX can emit light, and thus the display panel PNL can display an image through the plurality of pixels PX. In an embodiment, the display panel PNL can include a display area DA in which the plurality of pixels PX are disposed, and a component area CA adjacent to the display area DA.

[0045] A third adhesive layer AD3 can be disposed under the display panel PNL. The third adhesive layer AD3 can provide an adhesive force to the display panel PNL.

[0046] For example, the third adhesive layer AD3 can include an optically clear adhesive ("OCA"), an optically clear resin ("OCR"), a pressure sensitive adhesive ("PSA"), or the like. These materials can be used alone or in combination with each other.

[0047] A protective film PF can be disposed under the third adhesive layer AD3. The protective film PF can protect a lower surface of the display panel PNL. For example, the protective film PF can include polyimide, polyethylene terephthalate ("PET"), polyethylene naphthalate ("PEN"), or the like. These materials can be used alone or in combination with each other.

[0048] In the embodiment of the present disclosure, the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, and the protective film PF can define a first hole H1. For example, the first hole H1 can be defined as passing through the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, and the protective film PF. For example, the first hole H1 can penetrate the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, and the protective film PF. For example, the first hole H1 can have a circular shape in a plan view; however, the present disclosure is not limited thereto. The first hole H1 can overlap the component area CA in a plan view. For example, the first hole H1 can overlap the third hole H3 in a plan view.

[0049] A fourth adhesive layer AD4 can be disposed under the protective film PF. The fourth adhesive layer AD4 can provide an adhesive force to the protective film PF.

[0050] For example, the fourth adhesive layer AD4 can include an optically clear adhesive ("OCA"), an optically clear resin ("OCR"), a pressure sensitive adhesive ("PSA"), or the like. These materials can be used alone or in combination with each other.

[0051] A metal plate MP1 can be disposed under the fourth adhesive layer AD4. For example, the metal plate MP1 can be made of a rigid material to protect the display panel PNL and the like from external impact. In addition, the metal plate MP1 can function as a heat dissipation member that emits heat generated from the display panel PNL and the like. In addition, the metal plate MP1 can discharge static electricity generated in the cover window CW to the outside of the display device DD together with a conductive light blocking member CB, which will be described later.

[0052] For example, the metal plate MP1 can include copper, graphite, or the like. These materials can be used alone or in combination with each other. When graphite is used alone, the metal plate (e.g., the metal plate MP1 and the metal plates MP2 and MP3 to be described later) in this document can be referred to as a plate. However, the present application is not limited thereto, and the metal plate (e.g., the metal plate MP1, the metal plate MP2, and the metal plate MP3) can include other types of materials.

[0053] The fourth adhesive layer AD4 and the metal plate MP1 can define a second hole H2. For example, the second hole H2 can be defined through the fourth adhesive layer AD4 and the metal plate MP1. For example, the second hole H2 can be provided in the fourth adhesive layer AD4 and the metal plate MP1. For example, the second hole H2 can have a circular shape in a plan view; however, the present application is not limited thereto. The second hole H2 can overlap the component area CA in a plan view. For example, the second hole H2 can overlap the first hole H1 in a plan view.

[0054] In an embodiment of the present application, the width D2 of the second hole H2 can be greater than the width D1 of the first hole H1. In addition, the width D3 of the third hole H3 can be greater than the width D2 of the second hole H2.

[0055] However, the present application is not limited thereto, and in an embodiment of the present application, the width D1 of the first hole H1, the width D2 of the second hole H2, and the width D3 of the third hole H3 can be the same as each other.

[0056] In an embodiment of the present application, the width D1 of the first hole H1 and the width D2 of the second hole H2 can be the same as each other, and the width D1 of the first hole H1 can be less than the width D3 of the third hole H3. For example, the relative sizes of the width D1 of the first hole H1, the width D2 of the second hole H2, and the width D3 of the third hole H3 can be changed in various ways according to an embodiment of the present application.

[0057] The conductive light-blocking member CB can be provided in a portion of the component area CA. For example, the conductive light-blocking member CB can be provided in the first hole H1, the second hole H2, and the third hole H3. For example, the conductive light-blocking member CB can cover the side surface of the first adhesive layer AD1 exposed by the third hole H3. In addition, the conductive light-blocking member CB can cover the side surface of each of the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, and the protective film PF exposed by the first hole H1. In addition, the conductive light-blocking member CB can cover the side surface of each of the fourth adhesive layer AD4 and the metal plate MP1 exposed by the second hole H2. In addition, the conductive light-blocking member CB can cover at least a portion of the lower surface of the cover window CW. In addition, the conductive light-blocking member CB can cover the second surface (e.g., Figure 4at least a portion of the second surface S2 of the metal plate MP1.

[0058] The conductive light-blocking member CB can block a flow of light emitted from the display panel PNL from flowing into the first hole H1, the second hole H2, and the third hole H3. Also, static electricity can be generated in the cover window CW due to friction, and the conductive light-blocking member CB can discharge the static electricity.

[0059] The conductive light-blocking member CB can be formed by, for example, an air spray process, an electrostatic spray process, or the like. However, the present application is not limited thereto, and the conductive light-blocking member CB can be formed in various ways.

[0060] The conductive light-blocking member CB can include a conductive ink, a conductive paste, or the like. For example, the conductive light-blocking member CB can include a conductive particle such as carbon black, a conductive polymer such as PEDOT:PSS ("poly(3,4-ethylenedioxythiophene) polystyrene sulfonate"), a conductive paste such as silver, or the like. These materials can be used alone or in combination with each other.

[0061] In an embodiment of the present application, the conductive light-blocking member CB can cover a side surface of each of the first adhesive layer AD1, the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, the protective film PF, the fourth adhesive layer AD4, and the metal plate MP1 having a curved shape in a cross-sectional view. For example, in an embodiment of the present application, the conductive light-blocking member CB can include an opening in the first hole H1, the second hole H2, and the third hole H3.

[0062] However, the present application is not limited thereto, and in an embodiment of the present application, the conductive light-blocking member CB can cover a side surface of each of the first adhesive layer AD1, the polarizing plate POL, the second adhesive layer AD2, the display panel PNL, the third adhesive layer AD3, the protective film PF, the fourth adhesive layer AD4, and the metal plate MP1 in a straight line in a cross-sectional view.

[0063] Referring to Figure 2 , Figure 3 and Figure 4 , the metal plate MP1 can include a first surface S1 and a second surface S2. The first surface S1 of the metal plate MP1 can face the display panel PNL. The second surface S2 of the metal plate MP1 can be opposite to the first surface S1.

[0064] The metal plate MP1 can define a first groove GV1. For example, the first groove GV1 can be formed in the second surface S2 of the metal plate MP1. The first groove GV1 can be a portion in which at least a portion of the metal plate MP1 is removed from the second surface S2 of the metal plate MP1.

[0065] The first groove GV1 can be provided in a portion of the display region DA. For example, the first groove GV1 can be spaced apart from the component region CA in a plan view. For example, the first groove GV1 can be spaced apart from each of the first hole H1, the second hole H2, and the third hole H3 in a plan view.

[0066] In an embodiment of the present application, the first groove GV1 can not overlap the plurality of pixels PX in a plan view. For example, the first groove GV1 can be provided between a region where the plurality of pixels PX are provided and a region where the component region CA is provided in a plan view. For example, the first groove GV1 can surround the component region CA.

[0067] However, the present application is not limited thereto, and in an embodiment of the present application, the first groove GV1 can at least partially overlap some of the plurality of pixels PX in a plan view. For example, the position of the first groove GV1 can be changed within the display region DA.

[0068] The first groove GV1 can surround the component region CA in a plan view. For example, the first groove GV1 can surround the first hole H1, the second hole H2, and the third hole H3 in a plan view.

[0069] In an embodiment of the present application, the first groove GV1 can extend along a circle in a plan view. As mentioned above, the component region CA can have a circular shape in a plan view. For example, the first groove GV1 can extend along a circle having the same center as the component region CA in a plan view. For example, the first groove GV1 can have a ring shape in a plan view.

[0070] In an embodiment of the present application, the width W of the first groove GV1 can be substantially constant throughout the display region DA. However, the present application is not limited thereto, and in an embodiment of the present application, the width W of the first groove GV1 can not be constant throughout the display region DA, and can be changed in a specific region of the display region DA.

[0071] The first groove GV1 can be formed in the second surface S2 of the metal plate MP1 by using a laser light. For example, the first groove GV1 can be formed in the second surface S2 of the metal plate MP1 by using a CO2 laser, an ultraviolet laser, a green laser, or the like. However, the present application is not limited thereto, and the first groove GV1 can be formed in various ways.

[0072] As mentioned above, the conductive light-blocking member CB can cover a portion of the second surface S2 of the metal plate MP1. In this case, a phenomenon in which the conductive light-blocking member CB deviates from a design region on the second surface S2 of the metal plate MP1 and excessively expands can occur.

[0073] The metal plate MP1 according to the embodiment of the present utility model can include a first groove GV1. Thus, it is possible to prevent the conductive light-blocking member CB from excessively spreading outside the design area on the second surface S2 of the metal plate MP1. For example, the conductive light-blocking member CB can fill the first groove GV1, and thus, it is possible to prevent the conductive light-blocking member CB from excessively spreading on the second surface S2 of the metal plate MP1. For example, the first groove GV1 functions as a kind of dam, and thus, it is possible to prevent the conductive light-blocking member CB from being excessively applied to the second surface S2 of the metal plate MP1.

[0074] Figure 5 is a cross-sectional view illustrating a pixel included in a display apparatus of Figure 2 .

[0075] Referring to Figure 5 , each of the plurality of pixels PX can include a substrate SUB, a buffer layer BUF, a gate insulating layer GI, an interlayer insulating layer ILD, a via insulating layer VIA, an active layer ACT, a source electrode SE, a gate electrode GE, a drain electrode DE, a pixel electrode PE, a pixel defining layer PDL, an emission layer EML, a common electrode CE, and a sealing layer TFE.

[0076] The substrate SUB can include a transparent material or an opaque material. The substrate SUB can be formed of a transparent resin substrate. Examples of the transparent resin substrate can include a polyimide substrate. In this case, for example, the polyimide substrate can include a first organic layer, a first barrier layer, a second organic layer, and the like.

[0077] In addition, the substrate SUB can include, for example, a quartz substrate (e.g., a synthetic quartz substrate, a fluorine-doped quartz substrate), a calcium fluoride substrate, a soda lime glass substrate, a non-alkali glass substrate, and the like. These materials can be used alone or in combination with each other.

[0078] The buffer layer BUF can be disposed on the substrate SUB. The buffer layer BUF can prevent metal atoms or impurities from diffusing from the substrate SUB to the transistor TR. In addition, when the surface of the substrate SUB is not uniform, the buffer layer BUF can increase the flatness of the surface of the substrate SUB.

[0079] For example, the buffer layer BUF can include an inorganic material such as silicon oxide, silicon nitride, silicon oxynitride, and the like. These materials can be used alone or in combination with each other.

[0080] The active layer ACT can be disposed on the buffer layer BUF. The active layer ACT can include, for example, an inorganic semiconductor (e.g., amorphous silicon, polysilicon, metal oxide semiconductor), an organic semiconductor, and the like. These materials can be used alone or in combination with each other. The active layer ACT can include a source region, a drain region, and a channel region disposed between the source region and the drain region.

[0081] For example, metal oxide semiconductors may include binary compounds (“AB”) containing indium (“In”), zinc (“Zn”), gallium (“Ga”), tin (“Sn”), titanium (“Ti”), aluminum (“Al”), hafnium (“Hf”), zirconium (“Zr”), magnesium (“Mg”), etc. x ), ternary compounds ("AB") x C y ), quaternary compounds ("AB") x C y D z These materials can be used individually or in combination with each other.

[0082] For example, metal oxide semiconductors may include zinc oxide (“ZnO”). x Gallium oxide (GaO) x "), tin oxide ("SnO x Indium oxide (InO) x The materials include indium gallium oxide (“IGO”), indium zinc oxide (“IZO”), indium tin oxide (“ITO”), indium zinc tin oxide (“IZTO”), and indium gallium zinc oxide (“IGZO”). These materials can be used alone or in combination with each other.

[0083] The gate insulating layer GI can be disposed on the buffer layer BUF. The gate insulating layer GI can cover the active layer ACT. For example, the gate insulating layer GI can cover the active layer ACT and can be disposed along the contour of the active layer ACT.

[0084] For example, the gate insulating layer GI may include silicon oxide (“SiO2”) x ), silicon nitride ("SiN") x ), silicon carbide ("SiC") x ), silicon nitride oxide ("SiO") x N y ), silicon carbide ("SiO") x C y Inorganic materials such as (e.g., ') can be used alone or in combination with each other.

[0085] The gate electrode GE can be disposed on the gate insulating layer GI. In a planar view, the gate electrode GE can overlap with the channel region of the active layer ACT.

[0086] For example, the gate electrode GE can include a metal, an alloy, a metal nitride, a conductive metal oxide, a transparent conductive material, etc. Examples of the metal can include silver (“Ag”), molybdenum (“Mo”), aluminum (“Al”), tungsten (“W”), copper (“Cu”), nickel (“Ni”), chromium (“Cr”), titanium (“Ti”), tantalum (“Ta”), platinum (“Pt”), scandium (“Sc”), etc. These materials can be used alone or in combination with each other.

[0087] Examples of the conductive metal oxide can include indium tin oxide, indium zinc oxide, etc. Further, examples of the metal nitride can include aluminum nitride (“AlN x ”), tungsten nitride (“WN x ”), chromium nitride (“CrN x ”), etc. These materials can be used alone or in combination with each other.

[0088] An interlayer insulating layer ILD can be disposed on the gate insulating layer GI. The interlayer insulating layer ILD can cover the gate electrode GE. For example, the interlayer insulating layer ILD can cover the gate electrode GE and can be disposed along the profile of the gate electrode GE.

[0089] For example, the interlayer insulating layer ILD can include an inorganic material such as silicon oxide, silicon nitride, silicon carbide, silicon oxynitride, silicon oxycarbide, etc. These materials can be used alone or in combination with each other.

[0090] A source electrode SE can be disposed on the interlayer insulating layer ILD. The source electrode SE can be connected to a source region of the active layer ACT through a contact hole passing through the gate insulating layer GI and the interlayer insulating layer ILD.

[0091] A drain electrode DE can be disposed on the interlayer insulating layer ILD. The drain electrode DE can be connected to a drain region of the active layer ACT through a contact hole passing through the gate insulating layer GI and the interlayer insulating layer ILD.

[0092] For example, the source electrode SE can include a metal, an alloy, a metal nitride, a conductive metal oxide, a transparent conductive material, etc. These materials can be used alone or in combination with each other. The drain electrode DE and the source electrode SE can be formed through the same process as each other and can include the same material.

[0093] The transistor TR can include the active layer ACT, the source electrode SE, the gate electrode GE, and the drain electrode DE.

[0094] A via insulating layer VIA can be disposed on the interlayer insulating layer ILD. The via insulating layer VIA can cover the source electrode SE and the drain electrode DE. The via insulating layer VIA can include an organic material. For example, the via insulating layer VIA can include an organic material such as a phenol resin, an acrylic resin, a polyimide resin, a polyamide resin, a siloxane resin, an epoxy resin, or the like. These materials can be used alone or in combination with each other.

[0095] A pixel electrode PE can be disposed on the via insulating layer VIA. The pixel electrode PE can be connected to the drain electrode DE through a contact hole passing through the via insulating layer VIA.

[0096] The pixel electrode PE can include, for example, a metal, an alloy, a metal nitride, a conductive metal oxide, a transparent conductive material, or the like. These materials can be used alone or in combination with each other. In an embodiment of the present disclosure, the pixel electrode PE can have a stack structure including ITO / Ag / ITO. For example, the pixel electrode PE can operate as an anode.

[0097] A pixel defining layer PDL can be disposed on the via insulating layer VIA. The pixel defining layer PDL can cover a side portion of the pixel electrode PE. In addition, an opening exposing a portion of an upper surface of the pixel electrode PE can be formed in the pixel defining layer PDL.

[0098] For example, the pixel defining layer PDL can include an inorganic material or an organic material. In an embodiment of the present disclosure, the pixel defining layer PDL can include an organic material such as an epoxy resin, a siloxane resin, or the like. These materials can be used alone or in combination with each other. In an embodiment of the present disclosure, the pixel defining layer PDL can further include a light-blocking material including a black pigment, a black dye, or the like.

[0099] An emission layer EML can be disposed on the pixel electrode PE. The emission layer EML can include an organic material emitting light of a predetermined color. For example, the emission layer EML can include an organic material emitting red light. However, the present disclosure is not limited thereto, and the emission layer EML can emit light of a color different from red light.

[0100] A common electrode CE can be disposed on the emission layer EML and the pixel defining layer PDL. The common electrode CE can include, for example, a metal, an alloy, a metal nitride, a conductive metal oxide, a transparent conductive material, or the like. These materials can be used alone or in combination with each other. The common electrode CE can operate as a cathode.

[0101] The light emitting element LED can include the pixel electrode PE, the emission layer EML, and the common electrode CE.

[0102] A sealing layer TFE can be disposed on the common electrode CE. The sealing layer TFE can prevent impurities and moisture from penetrating from the outside into the pixel electrode PE, the light emitting layer EML, and the common electrode CE. The sealing layer TFE can include at least one inorganic layer and at least one organic layer.

[0103] For example, the inorganic layer can include silicon oxide, silicon nitride, silicon oxynitride, or the like. These materials can be used alone or in combination with each other. For example, the organic layer can include a polymer cured product such as a polyacrylate.

[0104] Although embodiments of each of the plurality of pixels PX have been described with reference to Figure 5 the structure shown in FIG. 1, each of the plurality of pixels PX is not limited to Figure 5 the structure shown in FIG. 1. For example, each of the plurality of pixels PX can include all structures that receive an electrical signal and emit light having a luminance corresponding to an intensity of the electrical signal.

[0105] Figure 6 is a plan view showing another example of the area A of Figure 1 . Figure 7 is a cross-sectional view showing an example of the display device of Figure 6 taken along the line II-II' of Figure 6 . Figure 8 is an enlarged cross-sectional view of the metal plate included in the display device of Figure 7 .

[0106] The display device DD' described with reference to Figure 6 , Figure 7 and Figure 8 may be substantially the same as or similar to the display device DD described with reference to Figure 2 , Figure 3 and Figure 4 except for the configuration of the metal plate MP2. Thus, overlapping descriptions can be omitted or simplified.

[0107] With reference to Figure 6 , Figure 7 and Figure 8 , the display device DD' according to the embodiments of the present disclosure can include a cover window CW, a first adhesive layer AD1, a polarizing plate POL, a second adhesive layer AD2, a display panel PNL, a third adhesive layer AD3, a protective film PF, a fourth adhesive layer AD4, a metal plate MP2, and a conductive light-blocking member CB.

[0108] The metal plate MP2 can define a second groove GV2. For example, the second groove GV2 can be formed in the second surface S2 of the metal plate MP2. The second groove GV2 can be a portion in which at least a portion of the metal plate MP2 is removed from the second surface S2 of the metal plate MP2.

[0109] The second groove GV2 can be provided in a portion of the metal plate MP2 located in the display region DA. The second groove GV2 can be spaced apart from the first groove GV1 in a plan view. For example, the second groove GV2 can surround the first groove GV1 in a plan view. In an embodiment of the present application, the second groove GV2 can extend along a circle having the same center as the first groove GV1. For example, the first groove GV1 can extend along a first circle in a plan view. The second groove GV2 can extend along a second circle in a plan view, and the first circle and the second circle can have substantially the same center. For example, the second groove GV2 can have a shape of a ring surrounding the first groove GV1 in a plan view. For example, the first groove GV1 and the second groove GV2 can have the same center as the component region CA.

[0110] In an embodiment of the present application, the second groove GV2 can not overlap the plurality of pixels PX in a plan view. For example, the second groove GV2 can be provided between a region where the first groove GV1 is provided and a region where the plurality of pixels PX are provided in a plan view.

[0111] However, the present application is not limited thereto, and in an embodiment of the present application, the second groove GV2 can at least partially overlap some of the plurality of pixels PX in a plan view. For example, the position of the second groove GV2 can be changed within the display region DA.

[0112] In an embodiment of the present application, the width W' of the second groove GV2 can be constant throughout the display region DA. However, the present application is not limited thereto, and in an embodiment of the present application, the width W' of the second groove GV2 can not be constant throughout the display region DA, and can be changed in a specific region of the display region DA.

[0113] In an embodiment of the present application, the width W' of the second groove GV2 and the width W of the first groove GV1 can be substantially the same as each other. However, the present application is not limited thereto, and in an embodiment of the present application, the width W' of the second groove GV2 can be greater than the width W of the first groove GV1. In an embodiment of the present application, the width W' of the second groove GV2 can be less than the width W of the first groove GV1.

[0114] In the embodiment of the present application, the height WH2 of the second groove GV2 in the third direction DR3 and the height WH1 of the first groove GV1 in the third direction DR3 can be substantially the same as each other. However, the present application is not limited thereto, and in the embodiment of the present application, the height WH2 of the second groove GV2 in the third direction DR3 can be greater than the height WH1 of the first groove GV1 in the third direction DR3. In the embodiment of the present application, the height WH2 of the second groove GV2 in the third direction DR3 can be less than the height WH1 of the first groove GV1 in the third direction DR3.

[0115] The second groove GV2 can be formed in the second surface S2 of the metal plate MP2 by using a laser light. For example, the second groove GV2 can be formed in the second surface S2 of the metal plate MP2 by using a CO2 laser, an ultraviolet laser, a green laser, or the like. However, the present application is not limited thereto, and the second groove GV2 can be formed in various ways.

[0116] Since the metal plate MP2 includes the first groove GV1 and the second groove GV2 provided therein, the conductive light-blocking member CB can be prevented from excessively spreading outside the design region on the second surface S2 of the metal plate MP2. For example, the conductive light-blocking member CB can fill the first groove GV1. In addition, the conductive light-blocking member CB can fill at least a portion of the second groove GV2. Accordingly, the conductive light-blocking member CB can be prevented from excessively spreading on the second surface S2 of the metal plate MP2.

[0117] Figure 6 、 Figure 7 and Figure 8 An example in which two grooves are provided in the second surface S2 of the metal plate MP2 is illustrated. However, the present application is not limited thereto, and three or more grooves can be provided in the second surface S2 of the metal plate MP2. As the number of grooves provided in the second surface S2 of the metal plate MP2 increases, the possibility that the conductive light-blocking member CB excessively spreads on the second surface S2 of the metal plate MP2 can further decrease.

[0118] Figure 9 is a cross-sectional view of another example of a display device of Figure 6 illustrating the display device of Figure 6 taken along the line II-II' of Figure 10 is an enlarged cross-sectional view of a metal plate included in the display device of Figure 9 .

[0119] The display device DD” described with reference to Figure 9 and Figure 10 may be applied to the display device DD’ described with reference to Figure 7 andFigure 8 The described display device DD' is substantially the same or similar. Therefore, overlapping descriptions can be omitted or simplified.

[0120] Reference Figure 9 and Figure 10 The display device DD" according to the embodiment of the present application can include a cover window CW, a first adhesive layer AD1, a polarizing plate POL, a second adhesive layer AD2, a display panel PNL, a third adhesive layer AD3, a protective film PF, a fourth adhesive layer AD4, a metal plate MP3, and a conductive light-blocking member CB.

[0121] The metal plate MP3 can include a first surface S1, a second surface S2, a side surface DS, and a corner CN. The first surface S1 of the metal plate MP3 can face the display panel PNL. The second surface S2 of the metal plate MP3 can be opposite to the first surface S1.

[0122] The side surface DS of the metal plate MP3 can connect the first surface S1 and the second surface S2. For example, the side surface DS of the metal plate MP3 can be a surface exposed through the second hole H2. For example, the side surface DS can be an inner surface defining the second hole H2.

[0123] The corner CN of the metal plate MP3 can be spaced apart from the first surface S1 in a cross-sectional view. For example, the corner CN of the metal plate MP3 can be spaced apart from the first surface S1 in a direction opposite to the third direction DR3.

[0124] In the embodiment of the present application, the corner CN of the metal plate MP3 can have a chamfered shape in a cross-sectional view. For example, as the corner CN of the metal plate MP3 approaches the display panel PNL, the corner CN of the metal plate MP3 can have a shape approaching a center of the second hole H2. For example, as the corner CN of the metal plate MP3 extends away from the display panel PNL, the corner CN of the metal plate MP3 can have a shape away from the center of the second hole H2. The center of the second hole H2 can substantially coincide with the center of a component area (for example, a component area CA) having a shape of a circle in a plan view. For example, the corner CN of the metal plate MP3 can have a shape inclined inward. Figure 6

[0125] In the embodiment of the present application, the angle θ between the corner CN of the metal plate MP3 and the side surface DS can be an obtuse angle. However, the present application is not limited thereto, and in an embodiment, the angle θ between the corner CN of the metal plate MP3 and the side surface DS can be substantially a right angle. In the embodiment of the present application, the angle θ between the corner CN of the metal plate MP3 and the side surface DS can be an acute angle.

[0126] ​When the conductive light-blocking member CB is applied only to an area smaller than the design area on the second surface S2 of the metal plate MP3, the metal plate MP3 and the conductive light-blocking member CB can be easily separated from each other by an external impact or force.

[0127] Since the edge CN of the metal plate MP3 has a chamfered shape, the conductive light-blocking member CB can be applied to the design area on the second surface S2 of the metal plate MP3. Therefore, the metal plate MP3 and the conductive light-blocking member CB can not be easily separated from each other by an external impact or force.

[0128] The utility model can be applied to various display devices. For example, the utility model can be applied to various display devices such as display devices for vehicles, ships and aircrafts, portable communication devices, display devices for display or information transmission, medical display devices, etc.

[0129] Although the utility model has been described with reference to the embodiments of the utility model, it will be understood by those of ordinary skill in the art that various changes in form and details can be made to the utility model without departing from the spirit and scope of the utility model.

Claims

1. A display device, characterized by comprising: a display panel including a display area in which a plurality of pixels are disposed and a component area adjacent to the display area, wherein a first hole is disposed in the display panel and overlaps the component area; and a plate disposed below the display panel, wherein a second hole is disposed in the plate and overlaps the first hole, and wherein a first groove is disposed in the plate and is spaced apart from the second hole.

2. The display device of claim 1, wherein, The plate includes a first surface facing the display panel and a second surface opposite the first surface, and the first groove is disposed in the second surface.

3. The display device of claim 1, wherein, The first groove surrounds the second hole.

4. The display device of claim 3, wherein, The first groove has a shape of a ring.

5. The display device of claim 1, wherein, A second groove is disposed in the plate and is spaced apart from the first groove.

6. The display device of claim 5, wherein, The plate includes a first surface facing the display panel and a second surface opposite the first surface, and each of the first groove and the second groove is disposed in the second surface.

7. The display device of claim 6, wherein, Each of the first groove and the second groove is a portion in which a portion of the plate is removed from the second surface of the plate.

8. The display device of claim 1, wherein, An edge of the plate has a chamfered shape in a cross-sectional view.

9. The display device of claim 1, wherein, Further comprising: a conductive light-blocking member covering a side surface of the display panel exposed through the first hole.

10. A display device, characterized by comprising: a display panel including a display area in which a plurality of pixels are disposed and an auxiliary area adjacent to the display area, wherein the display panel includes a first hole overlapping the auxiliary area; and a plate disposed on the display panel, wherein the plate includes a second hole and a first groove, wherein the second hole overlaps the first hole, and the first groove is spaced apart from the second hole.

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