Cover plate and display device

Abstract

This disclosure relates to a display device and a cover plate. The display device includes: a display panel including an active region hole and a first alignment key, the active region hole being located in an active region and having a boundary, the first alignment key being located around the boundary of the active region hole; and a cover plate located on the display panel and protecting the display panel, wherein the cover plate includes a first alignment opening above the first alignment key and includes an edge.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2024-0055380, filed on April 25, 2024, with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a cover plate attached to one side of a display panel to protect the display panel, and a display device including the cover plate. Background Technology

[0004] Electronic devices such as smartphones and tablet computers incorporate a display device as a user interface, and this display device includes a display panel and driving circuitry for driving the display panel. A light-emitting display panel can be used as the display panel. A cover plate is attached to one side of the display panel to support and protect it, and can also serve as a shielding film to block electromagnetic interference from the driving circuitry or other electrical circuitry of the electronic device.

[0005] The cover plate can be attached to the display panel, and to achieve this, the cover plate and the display panel must first be precisely aligned. To align the cover plate and the display panel, alignment keys are formed on the display panel, and an opening is formed on the cover plate. The relative position of the cover plate and the display panel is set based on the alignment keys exposed on the display panel through the opening in the cover plate.

[0006] The portion of the display panel exposed through the opening in the cover is susceptible to external impacts, which may result in black dot-like defects during drop tests. Utility Model Content

[0007] The embodiments are designed to facilitate precise alignment of the cover plate and display panel and reduce openings that are susceptible to external impacts.

[0008] The display device according to an embodiment includes: a display panel having a plurality of sides and including an active region hole and a first alignment key, the active region hole being located in an active region and having a boundary, the first alignment key being located around the boundary of the active region hole; and a cover plate located on the display panel and protecting the display panel, wherein the cover plate includes a first alignment opening that exposes the first alignment key and includes an edge.

[0009] The cover may also include an aperture opening that exposes an active area hole, and a first alignment opening may be connected to the aperture opening.

[0010] The first alignment opening may include a plurality of openings arranged symmetrically with respect to the hole opening.

[0011] The first alignment opening may include four openings arranged symmetrically with respect to the hole opening.

[0012] The first alignment opening can be a circular opening formed with an edge having a constant width spaced from the boundary of the active region aperture. The first alignment opening can be larger than the active region aperture.

[0013] The first alignment opening can be positioned above each of a plurality of first alignment keys around the boundary of the active region hole.

[0014] The display panel may also include a second alignment key adjacent to at least one of the plurality of sides, and the cover may also include a second alignment opening above the second alignment key.

[0015] The second alignment key may include a plurality of second alignment keys, and the second alignment opening may include a plurality of second alignment openings.

[0016] Multiple second alignment openings can be positioned adjacent to the side of the cover plate that is aligned with the side of the display panel that has the second alignment key.

[0017] The first alignment key and the second alignment key may be located on an opaque material layer included in at least one of the display component, touch component and anti-reflective component of the display panel.

[0018] The cover plate may include an opening that exposes an active region hole, and a first alignment opening may be connected to the opening.

[0019] The first alignment opening may include a plurality of openings arranged symmetrically with respect to the hole opening.

[0020] The first alignment opening may include four openings arranged symmetrically with respect to the hole opening.

[0021] The first alignment opening can be a circular opening with an edge of a constant width spaced from the boundary of the active region aperture in a plan view. The first alignment opening can be larger than the active region aperture.

[0022] The first alignment opening can expose the entire first alignment key around the active region hole.

[0023] The display panel can be a foldable panel that can be folded or bent in a predetermined area, and the cover plate can be a foldable panel that can be folded or bent in an area aligned with the predetermined area of ​​the display panel.

[0024] According to one embodiment, a cover plate is attached to the surface of a display panel to protect the display panel including an active area hole located in and having a boundary within the active area. A first alignment key may be located outside the boundary of the active area hole. An opening in the cover plate may be aligned with the active area hole in the display panel, and a first alignment opening may be positioned adjacent to the opening and expose the first alignment key in the display panel.

[0025] The embodiment may also include a second alignment opening above a second alignment key located at the edge of the display panel.

[0026] The first alignment opening may include a plurality of openings arranged symmetrically adjacent to the hole opening.

[0027] The first alignment opening may be a circular opening in a plan view having an edge of a constant width spaced apart from the boundary of the active region hole, and may expose a plurality of first alignment keys around the active region hole.

[0028] According to an embodiment, the number of openings formed in the cover plate to align with the display panel can be reduced, thereby improving the durability of the display device. Attached Figure Description

[0029] Figure 1 This is a layout diagram of a cover plate and a display panel aligned in a display device according to an embodiment.

[0030] Figure 2 yes Figure 1 An enlarged view of the alignment key and cover opening around the HIAA (hole in the active region) and indicating the alignment reference coordinates (also known as alignment coordinates).

[0031] Figure 3 It is located in Figure 1 An enlarged view of the opening on the outer side of the cover plate, indicating the alignment reference coordinates.

[0032] Figure 4 This is a cross-sectional view of a display panel applied to a display device according to an embodiment.

[0033] Figure 5 This is a layout diagram of a cover plate and a display panel aligned in a display device according to another embodiment.

[0034] Figures 6 to 8 This is an enlarged view of the alignment keys and the opening of the cover plate around the HIAA (hole in the active area) in a display device according to another embodiment. Detailed Implementation

[0035] Embodiments will be described in detail with reference to the accompanying drawings, enabling those skilled in the art to make and use this disclosure.

[0036] In the accompanying drawings, for ease of illustration, the dimensions and thickness of each component are arbitrarily indicated.

[0037] When a portion of a layer, film, region, or plate is referred to as being "above" or "on" another portion, this includes not only being "directly on" the other portion, but also having another portion between the portion and the other portion. Conversely, when a component is referred to as being "directly on" another component, this means that there is no other composition between the component and the other component.

[0038] Throughout this specification, unless otherwise stated, “a particular part includes a particular component” means that a particular part may also include other components.

[0039] Throughout this specification, "connection" refers not only to the direct connection of two or more components, but also to the indirect, physical, or electrical connection of two or more components through other components. In addition to these, it can include the connection of each component, which may be called by different names based on location or function but is substantially integrated with each other.

[0040] In the accompanying drawings, the symbols “x”, “y”, and “z” are used to indicate directions, where “x” is a first direction, “y” is a second direction perpendicular to the first direction, and “z” is a third direction perpendicular to both the first and second directions. The first direction x, the second direction y, and the third direction z can correspond to the horizontal direction, vertical direction, and thickness direction of the display device, respectively.

[0041] Unless otherwise stated in the specification, “overlap” means overlap on a third direction z.

[0042] Figure 1 This is a layout diagram of a cover plate and a display panel aligned in a display device according to an embodiment. Figure 2 yes Figure 1 An enlarged view of the alignment key and cover opening around the HIAA (hole in the active region) and indicating the alignment reference coordinates. Figure 3 It is located in Figure 1 An enlarged view of the opening on the outer side of the cover plate, indicating the alignment reference coordinates. Figure 4 This is a cross-sectional view of a display panel applied to a display device according to an embodiment. "HIAA" is also referred to herein as "active area hole".

[0043] Reference Figure 1The display device according to the embodiment includes a cover plate 10, a display panel 20, a printed circuit board 30 and a connection terminal 40. A driving circuit including an integrated circuit chip and the like is located on the printed circuit board 30, and the display device may include a flexible circuit film 50 that connects the connection terminal 40 and the printed circuit board 30.

[0044] The cover plate 10 protects the display panel 20 from the environment behind it (e.g., vibration, electromagnetic waves, heat, noise, etc.). The cover plate 10 may be referred to as a protective sheet, a lower sheet, etc. The cover plate 10 may include front and side portions corresponding to the front and side portions of the display panel 20, respectively, and may also include side openings 15 and 16 corresponding to the side portions of the display panel 20. In other words, the cover plate 10 may include openings that overlap or cover the front and side portions of the display panel 20, and the cover plate 10 may also include side openings 15 and 16 that expose the side portions of the display panel 20. The cover plate 10 may be a foldable panel capable of being folded or bent in a predetermined area aligned with a bendable or foldable portion of the display panel 20.

[0045] Display panel 20 may be a light-emitting display panel or a foldable panel capable of folding or bending the screen. Display panel 20 may have HIAA (holes in active regions) 29 formed in the active region and holes for mounting camera lenses, etc. As used herein, "active region" refers to the portion of display panel 20 that displays an image. The shape of HIAA 29 is defined by the boundaries of HIAA 29. Although the boundaries are depicted as circular in the embodiments described in this disclosure, this is not a limitation of the disclosure. Display panel 20 may include alignment keys 21, 22, 23, and 24 located around the boundaries of HIAA 29 and alignment keys 25 and 26 located on the edges (or in the middle of the edges, at the edges) of the sides of display panel 20. Display panel 20 will be described in more detail later.

[0046] The cover plate 10 may include a hole opening 19 aligned with the HIAA29 of the display panel 20. As used herein, "aligned" two elements means that one element is on top of the other element in the depth direction, which is aligned with... Figure 1The surfaces depicted are orthogonal to each other. Side openings 15 and 16 formed on the edge of the cover plate 10 expose alignment keys 25 and 26 located on the edge of the display panel 20, as well as some areas adjacent to the alignment keys 25, 26. The aperture opening 19 may include branch openings 11, 12, 13, and 14 that expose alignment keys 21, 22, 23, and 24 on the exterior of the HIAA 29 of the display panel 20. The branch openings 11, 12, 13, and 14 may be arranged symmetrically with respect to the aperture opening 19 and may be connected to the aperture opening 19. The edges of the side openings 15 and 16 and the branch openings 11, 12, 13, and 14 can be used to achieve alignment between the display panel 20 and the cover plate 10. The side openings 15, 16 and the branch openings 11, 12, 13, and 14 may be collectively referred to as alignment openings.

[0047] Multiple alignment keys 21, 22, 23, and 24 used in forming HIAA29 are located around HIAA29 on display panel 20, and branch openings 11, 12, 13, and 14 of some of the alignment keys 21, 22, 23, 24, 25, and 26 are exposed and connected to the cover plate. The alignment keys formed in the cover plate 10 for positioning HIAA29 can also be used to align the cover plate 10 and display panel 20.

[0048] Reference Figure 1 , Figure 2 and Figure 3 Alignment keys 21, 22, 23, 24, 25, and 26 are formed in the display panel 20, and side openings 15 and 16 are formed in the cover plate 10. Branch openings 11, 12, 13, and 14 can be used to align the display panel 20 and the cover plate 10. First, as... Figure 2 As shown, cover plate 10 is positioned such that the horizontal and vertical sides of branch openings 11, 12, 13, and 14 are aligned with a first alignment coordinate 1000, and the position of display panel 20 is adjusted such that the horizontal and vertical sides of alignment keys 21, 22, 23, and 24 around HIAA29 are aligned with a second alignment coordinate 2000, allowing cover plate 10 and display panel 20 to be aligned. Furthermore, as... Figure 3 As shown, the cover plate 10 is positioned such that the horizontal and vertical sides of the side openings 15 and 16 are aligned with the third alignment coordinates 1001 and 1002, and the position of the display panel 20 is adjusted such that the fourth alignment coordinates 2001 and 2002 are located at the center of the alignment keys 25 and 26 located on or adjacent to the edge of the display panel 20, allowing the cover plate 10 and the display panel 20 to be aligned. Position adjustments for alignment can be made by moving the display panel 20 or by moving the cover plate 10. Figure 2 Alignment and Figure 3 Alignment can be performed simultaneously.

[0049] Reference Figure 1 and Figure 4 The description includes the display panel 20 and alignment keys 21, 22, 23, 24, 25 and 26.

[0050] Figure 4 The portion shown can correspond to approximately three pixels in the display area.

[0051] Reference Figure 1 and Figure 4 The display panel 20 according to the embodiment may include a display component 100, a touch component 200, and an anti-reflective component 300.

[0052] The display component 100 basically includes a substrate 110, a first transistor T1 and a second transistor T2 formed on the substrate 110, and a light-emitting diode (LED) connected to the first transistor T1. The LED may correspond to a pixel.

[0053] The substrate 110 may be a flexible substrate comprising polymers such as polyimide, polyamide, or polyethylene terephthalate. The substrate 110 may be a glass substrate.

[0054] A barrier layer 111, which prevents the penetration of moisture, oxygen, etc., can be positioned on the substrate 110. The barrier layer 111 may include materials such as silicon nitride (SiN). x ), silicon dioxide (SiO) x ) or silicon oxynitride (SiO) x N y Inorganic insulating materials, which can be single-layer or multi-layer.

[0055] Buffer layer 120 may be located on barrier layer 111. Buffer layer 120 improves the properties of the semiconductor layer by blocking impurities from substrate 110 during the formation of the semiconductor layer, and buffer layer 120 can alleviate stress in the semiconductor layer by planarizing the surface of substrate 110. Buffer layer 120 may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. Buffer layer 120 may include amorphous silicon.

[0056] Semiconductor layers A1 and A2 may be located on buffer layer 120. Semiconductor layers A1 and A2 may include a first region, a second region, and a channel region between the first and second regions. Semiconductor layers A1 and A2 may include polysilicon.

[0057] The first gate insulating layer 141 may be located on semiconductor layers A1 and A2. The first gate insulating layer 141 may include materials such as silicon nitride (SiN). x ), silicon dioxide (SiO) x ) or silicon oxynitride (SiO) x N y Inorganic insulating materials, which can be single-layer or multi-layer.

[0058] A first gate conductive layer, which may include gate electrodes G1, G2, etc., may be located on a first gate insulating layer 141. Elements included in the first gate conductive layer may be formed from the same material in the same process. The first gate conductive layer may include molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be a single layer or multiple layers.

[0059] The second gate insulating layer 142 may be located on the first gate conductive layer. The second gate insulating layer 142 may include an inorganic insulating material such as silicon nitride, silicon oxide, or silicon oxynitride, and may be a single layer or multiple layers.

[0060] A second gate conductive layer, which may include an upper electrode C2 of a storage capacitor, may be located on a second gate insulating layer 142. The upper electrode C2 may overlap with the gate electrode G1, and the upper electrode C2, the gate electrode G1, and the second gate insulating layer 142 between the upper electrode C2 and the gate electrode G1 may form a storage capacitor. Elements included in the second gate conductive layer may be formed from the same material in the same process. The second gate conductive layer may include molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be a single layer or multiple layers.

[0061] The first interlayer insulating layer 161 may be located on the second gate conductive layer. The first interlayer insulating layer 161 may include an inorganic insulating material such as silicon nitride, silicon oxide, or silicon oxynitride, and may be a single layer or multiple layers. When the first interlayer insulating layer 161 has multiple layers, the lower layer may include silicon nitride, and the upper layer may include silicon oxide.

[0062] A first data conductive layer, including first electrodes S1 and S2, second electrodes D1 and D2, etc., can be positioned on a first interlayer insulating layer 161. The first electrode S1 and the second electrode D1 can be connected to a first region and a second region of semiconductor layer A1, respectively, through contact holes formed in insulating layers 141, 142, and 161. One of the first electrode S1 and the second electrode D1 can be a source electrode, and the other can be a drain electrode. The first electrode S2 and the second electrode D2 can be connected to a first region and a second region of semiconductor layer A2, respectively, through contact holes formed in insulating layers 141, 142, and 161. One of the first electrode S2 and the second electrode D2 can be a source electrode, and the other can be a drain electrode. Components included in the first data conductive layer can be formed from the same material in the same process. The first data conductive layer may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), copper (Cu), etc., and may be a single layer or multiple layers. For example, the first data conductive layer may include a lower layer containing a refractory metal such as molybdenum, chromium, tantalum, and titanium, an intermediate layer containing a metal with low resistivity such as aluminum, copper, and silver, and an upper layer containing a refractory metal. For example, the first data conductive layer may have a three-layer structure such as titanium / aluminum / titanium (Ti / Al / Ti).

[0063] Semiconductor layer A1, gate electrode G1, first electrode S1, and second electrode D1 can form a first transistor T1. The first transistor T1 can be a driving transistor or a transistor connected to one electrode of the driving transistor. Semiconductor layer A2, gate electrode G2, first electrode S2, and second electrode D2 can form a second transistor T2. The second transistor T2 can be a transistor connected to the gate electrode G1.

[0064] The first planarization layer 181 may be located on the first data conductive layer. The first planarization layer 181 may be an organic insulating layer. For example, the first planarization layer 181 may include organic insulating materials such as general polymers, such as polystyrene, polymer derivatives having phenolic groups, acrylic polymers (such as poly(methyl methacrylate)), imide polymers (such as polyimide), and siloxane polymers.

[0065] A second data conductive layer, which may include a driving voltage line VL1, a first connection electrode LE1, etc., may be positioned on the first planarization layer 181. The first connection electrode LE1 can be connected to the second electrode D1 of the first transistor T1 through a contact hole formed in the first planarization layer 181. Components included in the second data conductive layer can be formed from the same material in the same process. The second data conductive layer may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), copper (Cu), etc., and may be a single layer or multiple layers. For example, the second data conductive layer may have a three-layer structure such as titanium / aluminum / titanium (Ti / Al / Ti).

[0066] The second planarization layer 182 may be located on the second data conductive layer. The second planarization layer 182 may be an organic insulating layer. For example, the second planarization layer 182 includes organic insulating materials such as general polymers, such as polystyrene, polymer derivatives having phenolic groups, acrylic polymers (such as poly(methyl methacrylate)), imide polymers (such as polyimide), and siloxane polymers.

[0067] A third data conductive layer, which may include a data line DL, a second connection electrode LE2, etc., may be located on the second planarization layer 182. The second connection electrode LE2 can be connected to the first connection electrode LE1 through a contact hole formed in the second planarization layer 182. Components included in the third data conductive layer can be formed from the same material in the same process. The third data conductive layer may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Ni), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), copper (Cu), etc., and may be a single layer or multiple layers. For example, the third data conductive layer may have a three-layer structure such as titanium / aluminum / titanium (Ti / Al / Ti).

[0068] Although it has been stated that the second data conductive layer may include a drive voltage line VL1 and the third data conductive layer may include a data line DL, the signal lines that each data conductive layer may include can vary. For example, the second data conductive layer may include a drive voltage line VL1 and a data line DL.

[0069] The third planarization layer 183 may be located on the third data conductive layer. The third planarization layer 183 may be an organic insulating layer. For example, the third planarization layer 183 includes organic insulating materials such as general polymers, such as polystyrene, polymer derivatives having phenolic groups, acrylic polymers (such as poly(methyl methacrylate)), imide polymers (such as polyimide), and siloxane polymers.

[0070] A pixel conductive layer, including pixel electrode 191, can be positioned on a third planarization layer 183. Pixel electrode 191 can be connected to a second connection electrode LE2 through a contact hole formed in a second planarization layer 182. Pixel electrode 191 is electrically connected to a second electrode D1 and is capable of receiving a drive current that controls the brightness of a light-emitting diode (LED). Components included in the pixel conductive layer can be formed from the same material in the same process. The pixel conductive layer can include metals such as silver (Ag), lithium (Li), calcium (Ca), aluminum (Al), magnesium (Mg), and gold (Au). The pixel conductive layer can also include transparent conductive oxides (TCOs) such as indium tin oxide (ITO) or indium zinc oxide (IZO).

[0071] A pixel defining layer 360 may be located on the pixel conductive layer. The pixel defining layer 360 may have pixel openings 365A, 365B, and 365C above the pixel electrode 191. The pixel defining layer 360 may comprise an organic insulating material such as a general polymer (e.g., polystyrene), a polymer derivative having phenolic groups, an acrylic polymer (e.g., poly(methyl methacrylate)), an imide polymer (e.g., polyimide), and a siloxane polymer. The pixel defining layer 360 may be a black pixel defining layer 360 comprising a black dye or pigment. The black pixel defining layer 360 can improve contrast and prevent reflections caused by the underlying metal layer.

[0072] Emitting layers 370A, 370B, and 370C (or emitting layer 370) may be located on pixel electrode 191. At least a portion of emitting layers 370A, 370B, and 370C may be located within pixel openings 365A, 365B, and 365C. Emitting layers 370A, 370B, and 370C may include material layers that uniquely emit light of basic colors such as red, green, and blue. Emitting layers 370A, 370B, and 370C may have a structure in which material layers emitting different colors of light are stacked. In addition to emitting layers 370A, 370B, and 370C, at least one of a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer may also be located on pixel electrode 191.

[0073] The common electrode 270 can be positioned on the light-emitting layers 370A, 370B, and 370C, as well as the pixel defining layer 360. The common electrode 270 can be provided publicly to all pixels. The common electrode 270 is made of calcium (Ca), barium (Ba), magnesium (Mg), aluminum (Al), silver (Ag), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), and lithium (Li). The common electrode 270 may include a transparent conductive oxide (TCO) such as indium tin oxide (ITO) or indium zinc oxide (IZO).

[0074] Pixel electrode 191, light-emitting layers 370A, 370B and 370C, and common electrode 270 form a light-emitting diode (LED). Pixel electrode 191 can be the anode of the LED, and common electrode 270 can be the cathode of the LED.

[0075] Encapsulation layer 390 can be positioned on common electrode 270. Encapsulation layer 390 can seal the light-emitting diode (LED) and prevent moisture and oxygen from penetrating from the outside. Encapsulation layer 390 can be a thin-film encapsulation layer comprising one or more inorganic layers and one or more organic layers. For example, encapsulation layer 390 can have a three-layer structure of inorganic layer / organic layer / inorganic layer.

[0076] The touch component 200 can be positioned on the encapsulation layer 390.

[0077] The touch component 200 may include a first insulating layer 410 located on the encapsulation layer 390. The first insulating layer 410 may cover the encapsulation layer 390, protect the encapsulation layer 390, and prevent moisture penetration. The first insulating layer 410 can reduce the parasitic capacitance between the common electrode 270 and the touch electrode 451.

[0078] A first touch conductive layer, which may include a bridge 452, may be located on a first insulating layer 410, and a second insulating layer 420 may be located on the first touch conductive layer. A second touch conductive layer, which may include a touch electrode 451, may be located on a second insulating layer 420, and a passivation layer 430 may be located on the second touch conductive layer.

[0079] Touch electrode 451 may include a first touch electrode and a second touch electrode forming a mutual sensing capacitor. Bridge 452 may electrically connect the first touch electrode or the second touch electrode. For example, adjacent but separated first touch electrodes may be connected to and electrically connected through bridge 452 via contact holes formed in the second insulating layer 420.

[0080] The first insulating layer 410 and the second insulating layer 420 may comprise inorganic insulating materials such as silicon nitride, silicon oxide, or silicon oxynitride, and may be a single layer or multiple layers. The passivation layer 430 may comprise inorganic insulating materials such as silicon nitride, silicon oxide, or silicon oxynitride, or organic materials such as acrylic polymers or polyimide resins.

[0081] The first and second touch electrode layers can have a grid shape with openings overlapping the pixels. Components included in the first touch electrode layer can be formed from the same material using the same process. Components included in the second touch electrode layer can also be formed from the same material using the same process. The first and second touch electrode layers can include metals such as aluminum (Al), copper (Cu), titanium (Ti), molybdenum (Mo), silver (Ag), chromium (Cr), and nickel (Ni).

[0082] The anti-reflective component 300 may be located on the touch component 200.

[0083] The anti-reflective component 300 may include a light-blocking layer 520 and a color filter layer 530, wherein the color filter layer 530 includes color filters 530A, 530B and 530C.

[0084] The light-blocking layer 520 may overlap with the pixel-defining layer 360 of the display component 100 and may be narrower than the pixel-defining layer 360. The light-blocking layer 520 may have openings 521A, 521B and 521C above the pixel openings 365A, 365B and 365C of the pixel-defining layer 360.

[0085] Color filters 530A, 530B, and 530C can be positioned on light-blocking layer 520. Most of color filters 530A, 530B, and 530C can be located within and around openings 521A, 521B, and 521C in light-blocking layer 520. An outer coating 540 can be located on color filters 530A, 530B, and 530C.

[0086] The anti-reflective component 300 prevents external light incident on the display panel 20 from being reflected by wiring and other components and seen by the user. The light-blocking layer 520 and color filters 530A, 530B, and 530C can be combined to serve as the anti-reflective component 300. In this structure, a polarizing layer as an anti-reflective layer is not required, thus increasing light output efficiency and reducing the thickness of the display panel 20.

[0087] As described above, the display component 100 of the display panel 20 includes layers made of a recognizable opaque material, such as a first gate conductive layer, a second gate conductive layer, a first data conductive layer, a second data conductive layer, a third data conductive layer, a pixel conductive layer, and a pixel defining layer 360. Furthermore, the touch component 200 and the anti-reflective component 300 also include layers made of a visible opaque material, such as a first touch conductive layer, a second touch conductive layer, and a light-blocking layer 520, respectively. Alignment keys 21, 22, 23, 24, 25, and 26 can be formed on any of these layers or distributed in a combination thereof.

[0088] Figure 5 This is a layout diagram of a cover plate and a display panel aligned in a display device according to another embodiment.

[0089] With Figure 1 The embodiments differ, in Figure 5 In this embodiment, side openings 15 and 16 are absent. The cover plate 10 may consist only of an opening 19 exposing the HIAA 29 of the display panel 20 and branch openings 11, 12, 13, and 14 formed around the opening 19, which expose alignment keys 21, 22, 23, and 24 surrounding the HIAA 29. The cover plate 10 and the display panel 20 can be aligned using four separate branch openings 11, 12, 13, and 14 and four alignment keys 21, 22, 23, and 24.

[0090] According to an embodiment, the number of branch openings can be 2, 3, 5, or more. According to an embodiment, it is possible to retain... Figure 1 One of the side openings 15 and 16 may be omitted.

[0091] Figures 6 to 8 This is an enlarged view of the alignment keys and the opening of the cover plate around the HIAA (hole in the active area) in a display device according to another embodiment.

[0092] Figure 6 The embodiment is one in which only one branch opening 11 is provided. For example, in Figure 1 In some embodiments, the cover plate 10 and the display panel 20 can be aligned using side openings 15 and 16 and branch openings 11, 12, 13 and 14. According to embodiments, one side opening or three or more side openings can be formed, and the side openings can be located on the top or side of the cover plate 10 rather than the bottom. Figure 6 , Figure 7 and Figure 8 In one embodiment, the aperture 19 is larger than HIAA29, and the centers of aperture 19 and HIAA29 are aligned such that the edge of aperture 19 defines the boundary of HIAA29 and one or more alignment keys in a plan view.

[0093] Figure 7 The embodiment has two branch openings 11 and 12, which are arranged to be adjacent to the opening 19 while being spaced as far away from it as possible. The branch openings 11 and 12 are arranged symmetrically with respect to the opening 19. Using these two branch openings 11 and 12, the cover plate 10 (see...) Figure 1 The display panel 20 and the display panel 20 can be aligned, and as in Figure 1 In some embodiments, one or more side openings 15 and 16 can be formed, and branch openings 11 and 12 can be used in conjunction with one or more side openings 15 and 16, and the cover plate 10 and display panel 20 can also be aligned.

[0094] Figure 8 This is an embodiment in which the radius of the aperture 19 is made large enough to expose the alignment key around the HIAA 29. In other words, the alignment aperture is formed in a circular shape such that, in a plan view, the edge of the alignment aperture is a constant width away from the boundary of the HIAA 29 along the circumference of the HIAA 29. The alignment aperture can be larger than the HIAA 29. By ensuring a constant distance between the alignment key and the edge of the aperture 19, the cover plate 10 (see...) Figure 1 The display panel 20 can be aligned.

[0095] Although embodiments of the present disclosure have been described in detail above, the scope of the present disclosure is not limited thereto, and various modifications and improvements are possible by those skilled in the art using the basic concept of the present disclosure as defined in the appended claims.

Claims

1. A display device, characterized in that, The display device includes: A display panel having multiple sides and including an active area aperture and a first alignment key, the active area aperture being located in the active area, the active area aperture having a boundary, and the first alignment key being located around the boundary of the active area aperture; and A cover plate, located on the display panel and protecting the display panel. The cover plate includes a first alignment opening that exposes the first alignment key and includes an edge.

2. The display device according to claim 1, characterized in that, The cover plate also includes a hole opening that exposes the active region hole, and the first alignment opening is connected to the hole opening.

3. The display device according to claim 2, characterized in that, The first alignment opening includes a plurality of openings arranged symmetrically with respect to the hole opening.

4. The display device according to claim 2, characterized in that, The first alignment opening is a circular opening in a plan view having an edge with a constant width spaced from the boundary of the active region hole, wherein the first alignment opening is larger than the active region hole.

5. The display device according to claim 4, characterized in that, The first alignment opening is positioned above each of the plurality of first alignment keys around the boundary of the active region hole.

6. The display device according to claim 1, characterized in that, The display panel also includes a second alignment key adjacent to at least one of the plurality of sides, and The cover plate also includes a second alignment opening above the second alignment key, and, The second alignment key and the second alignment opening respectively include a plurality of second alignment keys and a plurality of second alignment openings.

7. The display device according to claim 1, characterized in that, The display panel also includes a second alignment key adjacent to at least one of the plurality of sides, and The cover plate also includes a second alignment opening above the second alignment key, and The first alignment key and the second alignment key are located on an opaque material layer included in at least one of the display component, touch component and anti-reflective component of the display panel.

8. A cover plate attached to the surface of a display panel having an active region hole located in an active region, the active region hole having a boundary, and a first alignment key located outside the boundary of the active region hole, characterized in that, The cover plate includes: The hole opening is aligned with the active area hole of the display panel; and The first alignment opening is positioned adjacent to the hole opening and exposes the first alignment key of the display panel.

9. The cover plate according to claim 8, characterized in that, The cover plate also includes: The second alignment opening is located above the second alignment key at the edge of the display panel.

10. The cover plate according to claim 8, characterized in that, The first alignment opening is a circular opening in a plan view having an edge with a constant width spaced from the boundary of the active region hole, and the first alignment opening exposes a plurality of the first alignment keys around the active region hole.

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