Electronic devices

Abstract

The electronic device includes a display panel that displays images, a cover panel that is in contact with the bottom of the display panel, has an opening defined therein, and has a gray reflectivity, and an electronic module that is arranged overlapping the opening on a plane, the cover panel including a first cover layer that does not overlap with the opening and has a first reflectivity, and a second cover layer that does not overlap with the opening and is arranged below the first cover layer and has a second reflectivity.

Description

[Technical Field]

[0001] The present invention relates to an electronic device, and more particularly to an electronic device with improved display characteristics. [Background technology]

[0002] 2. Description of the Related Art Electronic devices provide various functions that enable organic communication with users, such as displaying images to provide information to users or sensing user inputs.

[0003] An electronic device may include an electronic module that receives external signals or provides output signals to the outside. In modern electronic devices, the electronic module may be assembled behind the display panel. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention can provide an electronic device with improved display characteristics.

[0005] The present invention can provide an electronic device that can reduce the brightness deviation between the opening in the cover panel and the area adjacent thereto.

[0006] The present invention can provide an electronic device that can reduce or increase the reflectance of an area adjacent to an opening in a cover panel, thereby reducing the brightness deviation between the opening and the adjacent area. [Means for solving the problem]

[0007] One embodiment provides an electronic device including a display panel that displays an image, a cover panel that contacts the bottom of the display panel, defines an opening, and has a gray reflectivity, and an electronic module that is arranged to overlap the opening on a plane, wherein the cover panel includes a first cover layer that does not overlap the opening and has a first reflectivity, and a second cover layer that does not overlap the opening and is arranged below the first cover layer and has a second reflectivity.

[0008] An electronic device may be provided in which the second reflectance is less than or equal to the first reflectance.

[0009] An electronic device may be provided in which the reflectance of the cover panel is greater than or equal to the reflectance of the display panel.

[0010] An electronic device may be provided in which one of the first cover layer and the second cover layer has a gray color and the other of the first cover layer and the second cover layer has a white color.

[0011] An electronic device may be provided in which the first cover layer has a grey or white colour and the second cover layer has a grey or black colour.

[0012] The electronic device may further include a cover panel including a protective film interposed between the first cover layer and the second cover layer.

[0013] An electronic device may be provided in which the protective film is a transparent layer.

[0014] The protective film may be provided for an electronic device having a reflectance equal to or greater than the second reflectance.

[0015] An electronic device may be provided in which the cover panel includes a lower member disposed under the second cover layer, the first cover layer having adhesive properties and contacting the protective film and the display panel, respectively, and the second cover layer having adhesive properties and contacting the protective film and the lower member, respectively.

[0016] The electronic device may be provided in which the first cover layer has adhesiveness and contacts the protection film and the display panel, respectively, and the second cover layer is a cushion layer.

[0017] An electronic device may be provided in which the first cover layer contacts one side of the protective film and the second cover layer contacts the other side of the protective film.

[0018] The first cover layer may include a plurality of patterns, and an electronic device may be provided that bonds the protective film and the display panel.

[0019] In one embodiment, an electronic device is provided that includes a display panel that displays images, a cover panel that contacts the lower part of the display panel and defines an opening, and an electronic module that is arranged to overlap the opening on a plane, wherein the cover panel includes a protective film that does not overlap the opening, a first cover layer that is arranged between the display panel and the protective film and contacts the protective film, and a second cover layer that is arranged below the protective film and contacts the protective film, and the reflectance of the cover panel is a color reflectance of 15% or more and 70% or less.

[0020] An electronic device may be provided in which the first cover layer has a grey or white colour and the second cover layer has a grey or black colour.

[0021] The cover panel may include a lower member disposed under the second cover layer, a first adhesive layer having adhesive properties and contacting the display panel and the first cover layer, respectively, and a second adhesive layer having adhesive properties and contacting the second cover layer and the lower member, respectively.

[0022] An electronic device may be provided in which any one of the first adhesive layer, the first cover layer, the protective film, the second cover layer, and the second adhesive layer has a white color or a gray color, and the remaining of the first adhesive layer, the first cover layer, the protective film, the second cover layer, and the second adhesive layer are transparent layers.

[0023] The electronic device may be provided in which the first adhesive layer has a white or gray color and the second adhesive layer has a white or gray color.

[0024] An electronic device may be provided in which the protective film, the first cover layer, the second cover layer, the first adhesive layer, and the second adhesive layer are transparent, and the reflectance of the lower member is substantially the same as the reflectance of a gray color.

[0025] In one embodiment, an electronic device is provided that includes a display panel that displays images; a cover panel that contacts a bottom of the display panel, has an opening defined therein, and has a gray reflectivity; and an electronic module that is arranged to overlap the opening on a plane, wherein the cover panel includes: a protective film that does not overlap the opening; a first cover layer that is arranged between the display panel and the protective film and in contact with the protective film; a first adhesive layer that is arranged between the first cover layer and the display panel and in contact with the first cover layer and the display panel, respectively; a lower member that is arranged below the protective film; a second cover layer that is arranged between the lower member and the protective film and in contact with the protective film; and a second adhesive layer that is arranged between the second cover layer and the lower member and in contact with the second cover layer and the lower member, respectively.

[0026] An electronic device may be provided in which the protective film is transparent, the first cover layer has a gray or white color, and the second cover layer has a gray or black color. [Effects of the Invention]

[0027] According to an embodiment of the present invention, an electronic device can have improved display characteristics.

[0028] An electronic device according to an embodiment of the present invention can reduce the brightness deviation between an opening in a cover panel and an area adjacent thereto.

[0029] An electronic device according to an embodiment of the present invention may reduce or increase the reflectance of an area adjacent to an opening in a cover panel, thereby reducing the brightness deviation between the opening and the adjacent area. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is a perspective view illustrating an electronic device according to an embodiment of the present invention. [Figure 2] 1 is a perspective view of an electronic device in a folded state according to an embodiment of the present invention; [Figure 3] 1 is a perspective view illustrating an electronic device according to an embodiment of the present invention. [Figure 4] 1 is a perspective view of an electronic device in a folded state according to an embodiment of the present invention; [Figure 5] 1 is an exploded perspective view of an electronic device according to an embodiment of the present invention; [Figure 6] 1 is a cross-sectional view of an electronic device according to an embodiment of the present invention. [Figure 7] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 8a] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 8b] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 8c] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 8d] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 9a] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 9b] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 9c] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 10] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 11] 1 is a cross-sectional view of a portion of an electronic device according to one embodiment of the present invention. [Figure 12a] 10 is a photograph showing the brightness difference within the display area. [Figure 12b] 10 is a photograph showing the brightness difference within the display area. [Figure 12c] 10 is a photograph showing the brightness difference within the display area. [Figure 12d]10 is a photograph showing the brightness difference within the display area. [Figure 12e] 10 is a photograph showing the brightness difference within the display area. [Figure 12f] 10 is a photograph showing the brightness difference within the display area. DETAILED DESCRIPTION OF THE INVENTION

[0031] As used herein, when a component (or region, layer, portion, etc.) is referred to as being "on," "coupled," or "bonded" to another component, it means that it may be directly positioned, coupled, or bonded to the other component, or that a third component may be disposed therebetween.

[0032] The same reference numerals refer to the same elements. In the drawings, the thickness, proportions, and dimensions of the elements are exaggerated for the purpose of effectively explaining the technical content. "And / or" includes all combinations of one or more elements defined by the associated elements.

[0033] Terms such as "first" and "second" are used to describe various components, but the components are not limited to these terms. These terms are used only to distinguish one component from another. For example, a first component may be referred to as a "second component," and similarly, a second component may be referred to as a "first component," without departing from the scope of the present invention. A singular expression includes a plural expression unless the context clearly dictates otherwise.

[0034] Furthermore, terms such as "under," "below," "on," and "above" are used to describe the relationship between components shown in the drawings. These terms are relative concepts and are described based on the directions shown in the drawings.

[0035] It should be understood that the terms "comprise" or "have" specify the presence of any feature, number, step, operation, component, part, or combination thereof described above in the specification, but do not preclude the presence or possible addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0036] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person skilled in the art to which the present invention belongs. Furthermore, terms that are the same as those defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an overly ideal or formal sense unless explicitly defined herein.

[0037] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0038] FIG. 1 is a perspective view of an electronic device according to an embodiment of the present invention, FIG. 2 is a perspective view of an electronic device according to an embodiment of the present invention in a folded state, FIG. 3 is a perspective view of an electronic device according to an embodiment of the present invention, and FIG. 4 is a perspective view of an electronic device according to an embodiment of the present invention in a folded state.

[0039] The electronic devices ED and ED-a according to an embodiment may be a smartphone, a personal computer, a laptop computer, a personal digital assistant, a car navigation system, a game console, a smart TV, etc. In the first to fourth examples, a smartphone is exemplified as the electronic devices ED and ED-a according to an embodiment.

[0040] In one embodiment, the electronic device ED, ED-a may have a rectangular shape having a long side extending in the direction of a first directional axis DR1 and a short side extending in the direction of a second directional axis DR2 intersecting the first directional axis DR1. However, the embodiment is not limited thereto, and the electronic device ED, ED-a may have various shapes, such as a circle or a polygon, in a plan view. The electronic device ED, ED-a may be a flexible electronic device.

[0041] In the electronic device ED or ED-a according to an embodiment, a display surface FS on which an image IM is displayed may be parallel to a plane defined by the first directional axis DR1 and the second directional axis DR2. The normal direction of the display surface FS, i.e., the thickness direction of the electronic device ED or ED-a, is indicated by the third directional axis DR3. The display surface FS may correspond to the front surface of the electronic device ED or ED-a. The front (or upper surface) and rear (or lower surface) of each component are separated by the third directional axis DR3. However, the directions indicated by the first to third directional axes DR1, DR2, and DR3 are relative concepts and may be converted to other directions. Hereinafter, the first to third directions refer to the directions indicated by the first to third directional axes DR1, DR2, and DR3, respectively, and are referred to by the same reference numerals.

[0042] In one embodiment, the electronic device ED, ED-a may include at least one folding area FA, FA-a. In one embodiment, the electronic device ED, ED-a may include at least one folding area FA, FA-a and a non-folding area NFA, NFA-a adjacent to the folding area FA, FA-a. The electronic device ED, ED-a may include a folding area FA, FA-a and a plurality of non-folding areas NFA, NFA-a. The folding areas FA, FA-a may be disposed between the non-folding areas NFA, NFA-a.

[0043] In the electronic device ED according to one embodiment shown in FIGS. 1 and 2, the folding area FA and the non-folding area NFA may be arranged adjacent to each other along a first directional axis DR1. The folding area FA may be a portion that can be deformed into a folded shape based on a folding axis FX extending along a second directional axis DR2. In one embodiment, the folding axis FX may extend in a direction parallel to a short side of the electronic device ED. In one embodiment, the radius of curvature RD of the folding area FA may be 5 mm or less.

[0044] Except for the folding operation, the electronic device ED-a shown in FIG. 3 may have substantially the same configuration as the electronic device ED shown in FIG. 1. According to one embodiment shown in FIGS. 3 and 4, the folding region FA-a may be bent based on a folding axis FX-a parallel to the first directional axis DR1, thereby folding the electronic device ED-a. The folding axis FX-a may be defined as a major axis parallel to the long side of the electronic device ED-a. In other words, unlike the electronic device ED shown in FIG. 1, which is folded based on a minor axis, the electronic device ED-a shown in FIG. 3 may be folded based on a major axis.

[0045] 1 and 4 illustrate one folding area FA, FA-a and two non-folding areas NFA, NFA-a as examples, the number of folding areas FA, FA-a and non-folding areas NFA, NFA-a is not limited thereto. For example, the electronic device ED, ED-a may include more than two non-folding areas NFA, NFA-a and multiple folding areas FA, FA-a arranged between the non-folding areas NFA, NFA-a.

[0046] In one embodiment of the electronic devices ED and ED-a, the non-folding areas NFA and NFA-a may be arranged symmetrically with respect to the folding areas FA and FA-a. However, the embodiment is not limited thereto. The folding areas FA and FA-a may be arranged between the non-folding areas NFA and NFA-a, and the areas of the two non-folding areas NFA and NFA-a facing each other with respect to the folding areas FA and FA-a may be different from each other.

[0047] 1 to 4, when the electronic devices ED and ED-a of the embodiment are folded, the non-folding areas NFA and NFA-a face each other, and the electronic devices ED and ED-a may be folded inward (in-folding) so that the display surface FS is not exposed to the outside. However, embodiments are not limited thereto, and unlike the illustrations, the electronic devices ED and ED-a may be folded outward (out-folding) so that the display surface FS is exposed to the outside. Also, unlike the illustrations, the electronic devices according to the embodiment may further include a rear display surface (not shown). The rear display surface (not shown) may be an external surface that is exposed to the outside when the electronic devices are folded inward and the front display surface FS is not exposed to the outside. The rear display surface (not shown) may provide a display surface through a rear window disposed on the housing HU (FIG. 5). If the electronic devices ED and ED-a include a rear display surface (not shown), they may further include an additional display module other than the display module DM (FIG. 5) that displays an image IM on the front display surface FS.

[0048] 1 to 4 illustrate a foldable electronic device, but the present invention is not limited to this. In one embodiment, the electronic device may be a rollable electronic device, a bent electronic device including a bend, a flat rigid electronic device, or a bent rigid electronic device.

[0049] The display surface FS of the electronic device ED, ED-a may include an active area AA and a peripheral area NAA. The active area AA may be an area activated by an electrical signal. The active area AA is an area where an image is displayed and where various types of external inputs can be sensed. The external inputs may include various types of inputs provided from outside the electronic device ED, ED-a. For example, the external inputs may include contact by a part of the user's body, such as a hand, as well as external inputs applied in close proximity to the electronic device ED, ED-a or adjacent at a predetermined distance (e.g., hovering). The external inputs may also include various types such as force, pressure, light, etc., and are not limited to any one embodiment.

[0050] The shape of the active area AA may be substantially defined by the peripheral area NAA. However, the peripheral area NAA may be adjacent to the active area. The peripheral area NAA may surround the active area AA. This is an exemplary embodiment, and the peripheral area NAA may be disposed adjacent to only one side of the active area AA or may be omitted.

[0051] FIG. 5 is an exploded perspective view of an electronic device according to one embodiment of the present invention shown in FIG. 1, and FIG. 6 is a cross-sectional view of an electronic device according to one embodiment of the present invention, showing a portion corresponding to line II' in FIG. 5.

[0052] 5 and 6, an electronic device ED according to an embodiment of the present invention may include an electronic module EM, a display panel EP, and a window WM. The window WM may be disposed on top of the display panel EP.

[0053] The electronic device ED may further include a housing HU that accommodates the electronic module EM and the display module DM, and may also include a polarizing member PM arranged on top of the display panel EP and a cover panel CVP arranged on the bottom of the display panel EP.

[0054] In one embodiment of the electronic device ED that can be folded along at least one folding axis extending in one direction, in order to minimize damage during repeated folding and unfolding operations, the overall thickness of a member disposed below the display panel EP may be adjusted to correspond to the overall thickness of a member disposed above the display panel EP based on the display panel EP. In other words, a member may be added below the display panel EP so that a neutral surface is located on the display panel EP.

[0055] In one embodiment of the electronic device ED, a window WM is disposed on the display module DM and covers the front surface IS of the display panel EP. The window WM includes an upper surface FS exposed to the outside. The display surface FS (FIG. 1) of the electronic device ED may be substantially defined by the upper surface FS of the window WM. In the upper surface FS of the window WM, a transmissive area TA may be an optically transparent area. The transmissive area TA may have a shape corresponding to the display area DA of the display panel EP. For example, the transmissive area TA overlaps the front surface of or at least a portion of the display area DA. An image IM (FIG. 1) displayed in the display area DA of the display panel EP can be viewed from the outside through the transmissive area TA.

[0056] The bezel region BZA may be a region on the top surface FS of the window WM that has a relatively lower light transmittance than the transmissive region TA. The bezel region BZA may define the shape of the transmissive region TA. The bezel region BZA may be adjacent to and surround the transmissive region TA.

[0057] The bezel area BZA may have a predetermined color. If the window WM is made of glass or a polymer substrate, the bezel area BZA may be a color layer printed or deposited on one side of the glass or polymer substrate. Alternatively, the bezel area BZA may be formed by coloring a corresponding area of ​​the glass or polymer substrate.

[0058] The bezel area BZA covers the non-display area NDA of the display panel EP and may block the non-display area NDA from being viewed from the outside. However, this is an exemplary illustration, and in a window WM according to one embodiment of the present invention, the bezel area BZA may be omitted.

[0059] The display module DM may be disposed below the window WM and may include a display panel EP and a circuit board DC.

[0060] According to one embodiment of the present invention, the display panel EP may function as an output device. For example, the display panel EP displays an image in the active area AA (FIG. 1) so that a user can acquire information through the image. The display panel EP may also function as an input device that senses an external input applied to the active area AA (FIG. 1).

[0061] The display panel EP includes a front surface IS and a rear surface facing the front surface IS. The front surface IS may include a display area DA that displays images and senses external inputs, and a non-display area NDA adjacent to the display area DA. The non-display area NDA may be an area in which drive circuits for driving pixels in the display area DA and wiring connected thereto are arranged, and wiring connected to sensing electrodes for sensing external inputs is arranged. The display area DA may overlap at least a portion of the active area AA (FIG. 1), and the non-display area NDA may overlap at least a portion of the peripheral area NAA (FIG. 1).

[0062] The cover panel CVP may include a lower panel UP and a lower member UM. The cover panel CVP may be gray and translucent. As shown in the drawings, the lower panel UP may be gray and the lower member UM may not be gray. However, without being limited to the illustrated example, both the lower panel UP and the lower member UM may be gray, or only the lower member UM may be gray.

[0063] The cover panel CVP may have openings defined therein, which may include an opening UP-OP in the lower panel UP and an opening UM-OP in the lower member UM.

[0064] The opening defined in the cover panel CVP may have a polygonal shape on a plane as shown in the figure. However, it is not limited to the illustrated example, and may have a circular or elliptical shape on a plane defined by the first directional axis DR1 and the second directional axis DR2. In one example, the opening defined in the cover panel CVP may have a shape corresponding to the electronic module EM.

[0065] The opening of the cover panel CVP may be located within the display area DA. That is, the opening UP-OP of the lower panel UP and the opening UM-OP of the lower member UM may each be located within the display area. The opening of the cover panel CVP may be a portion separated from the non-display area NDA and defined within the display area DA.

[0066] That is, the opening of the cover panel CVP may overlap the active area AA (FIG. 1) and be spaced apart from the peripheral area NAA (FIG. 1) on a plane.

[0067] The circuit board DC may be connected to the display panel EP. The circuit board DC may include a flexible substrate CF and a main substrate MB. The flexible substrate CF may include an insulating film and conductive traces disposed on the insulating film. The conductive traces are connected to the pads PD to electrically connect the circuit board DC and the display panel EP.

[0068] In one embodiment of the present invention, the flexible substrate CF may be assembled in a bent state, so that the main substrate MB may be disposed under the display panel EP and stably accommodated within the space provided with the housing HU. Alternatively, in another embodiment, the flexible substrate CF may be omitted, in which case the main substrate MB may be directly connected to the display panel EP.

[0069] The main substrate MB may include signal lines and electronic components (not shown). The electronic components may be connected to the signal lines and electrically connected to the display panel EP. The electronic components generate or process various electrical signals, such as signals for generating an image IM or signals for sensing external inputs. Meanwhile, a plurality of main substrates MB may be provided corresponding to the electrical signals to be generated and processed, and the present invention is not limited to any one embodiment.

[0070] A polarizing member PM may be disposed on the display panel EP. The polarizing member PM may include a polarizing plate and may function to reduce reflection caused by external light.

[0071] The display panel EP may further include a lower member UM disposed thereunder. The lower member UM may function as a protective member that protects the display module DM from external impact. The lower member UM may also be provided to a predetermined thickness or greater to function as a step compensation member for the electronic device ED. That is, the thickness of the lower member UM may be adjusted so that the neutral plane of the display panel EP is located, thereby improving the durability of the electronic device, whether it is folded or not.

[0072] The electronic module EM is disposed below the display panel EP. The electronic module EM may overlap the opening in the cover panel CVP. The electronic module EM may receive an external input transmitted through the opening in the cover panel CVP or provide an output through the opening in the cover panel CVP. In one embodiment, the electronic module EM may be a fingerprint recognition sensor. However, the electronic module EM may be a proximity sensor, an illuminance sensor, or a camera module, and is not limited to any one embodiment. Furthermore, the cover panel CVP may have a plurality of openings, and a plurality of electronic modules EM may be provided corresponding to the plurality of openings in the cover panel CVP.

[0073] The electronic module EM may be housed in a housing HU. In one embodiment of the electronic device ED, the electronic module EM may be disposed overlapping an opening UP-OP in the lower panel UP, through which components disposed above the electronic module EM penetrate, and an opening UM-OP in the lower member UM. The electronic module EM may receive pressure transmitted from the outside through an opening area of ​​the window WM overlapping with the openings UP-OP and UM-OP formed through each component, or may provide output to a user through the opening area of ​​the window WM. In one embodiment, the opening area of ​​the window WM may vary within the active area AA ( FIG. 1 ) depending on the region in which the electronic module EM is disposed. In addition, the positions of the openings UP-OP and UM-OP, which are defined by the components disposed above the electronic module EM, may also vary depending on the region in which the electronic module EM is disposed.

[0074] In the electronic device ED according to an embodiment of the present invention, the electronic module EM is disposed overlapping the active area AA (FIG. 1), which may eliminate a separate space for disposing the electronic module EM in the peripheral area NAA (FIG. 1). As a result, the electronic device ED according to an embodiment of the present invention may minimize the peripheral area NAA (FIG. 1) and reduce dead space.

[0075] In the electronic device ED, ED-a (see FIG. 3) according to an embodiment of the present invention, the housing HU may provide a predetermined storage space. The display module DM and the electronic module EM may be stored in the storage space to protect them from external impact. The housing HU may include a material having relatively high rigidity. For example, the housing HU may include a plurality of frames and / or plates made of glass, a polymer material, or a metal material. In addition, although not shown, the housing HU may include a control unit and hinges for controlling the folding or bending operation of the electronic device ED.

[0076] The window WM or the polarizing member PM can prevent the display module DM from being seen from the outside, and can also prevent the cover panel CVP from being seen other than the display module DM, and is not limited to any one embodiment.

[0077] 6, a display panel EP according to an embodiment of the present invention may include a light source LA. The light source LA may be disposed in a display area DA, and the light source LA may correspond to the pixels of the display area DA described above. The light source LA may emit light LA-OL toward a window WM above the display panel EP. The light source LA may also emit light LA-IL toward a cover panel CVP located below the display panel EP.

[0078] For convenience of explanation, the light LA-OL emitted in the direction of the window WM will be referred to as the first light LA-OL, and the light LA-IL emitted in the direction of the cover panel CVP will be referred to as the second light LA-IL.

[0079] For convenience, the drawings show only the first light LA-IL and the second light LA-OL directed toward the third directional axis DR3, but this is not limiting, and light may also be emitted in a direction different from the third directional axis DR3.

[0080] The first light LA-OL can be emitted directly to the outside of the electronic device ED, while the second light LA-IL can be reflected by the display panel EP or the cover panel CVP and emitted to the outside of the electronic device ED.

[0081] The display panel EP and the cover panel CVP may have different reflectivities. When the second light LA-IL is reflected by the display panel EP or the cover panel CVP and emitted to the outside of the electronic device ED, the difference in reflectivities between the display panel EP and the cover panel CVP may cause a difference in the amount of light reflected from the display panel EP and the amount of light reflected from the cover panel CVP. This may result in a difference in brightness in the display area DA, causing unevenness. When unevenness occurs, the display quality may be degraded.

[0082] According to one embodiment of the present invention, an opening may be defined in the cover panel CVP. The opening in the cover panel CVP may include the opening UP-OP in the lower panel UP and the opening UM-OP in the lower member UM, as described above. In the area where the cover panel CVP and the display panel EP contact each other, the second light LA-IL emitted from the light source LA of the display panel EP is reflected by the cover panel CVP. However, in the area where the display panel EP and the opening UM-OP overlap, the second light LA-IL is not reflected by the cover panel CVP. This results in a difference in brightness between the area where the openings UP-OP and UM-OP overlap in the display area DA and the area where the openings UP-OP and UM-OP do not overlap.

[0083] The reflectance of the portion where the display panel EP and the openings UP-OP and UM-OP overlap may be substantially the same as the reflectance of the display panel EP. By adjusting the reflectance of the display panel EP in the portion where the openings UP-OP and UM-OP overlap in the display area DA and the reflectance of the portion where the openings UP-OP and UM-OP do not overlap in the display area DA, the difference in luminance between the portion where the openings UP-OP and UM-OP overlap in the display area DA and the portion where the openings UP-OP and UM-OP do not overlap may be reduced.

[0084] According to an embodiment of the present invention, the difference in reflectance between the display panel EP and the cover panel CVP may be designed to have a specific value to reduce the brightness difference. For example, the specific value may be 0, but is not limited to this and may vary depending on the product design.

[0085] According to one embodiment of the present invention, the reflectance of the cover panel CVP may be adjusted. For example, the reflectance of the cover panel CVP may be greater than or equal to the reflectance of the display panel EP. However, the present invention is not limited to this embodiment, and the reflectance of the display panel EP as well as the reflectance of the cover panel CVP may be adjusted.

[0086] According to one embodiment of the present invention, the cover panel CVP may have a color substantially the same as a gray color. Having a color substantially the same as a gray color means having the same color reflectance as the color reflectance of the gray color. That is, the cover panel CVP may have a color reflectance of the gray color.

[0087] The color reflectance of the gray color exceeds the reflectance of the black color and is less than the reflectance of the white color. That is, the color reflectance of the gray color may be in the range of more than 15% and less than 70%. Preferably, the color reflectance may be 20% or more and 68% or less.

[0088] According to one embodiment of the present invention, each of the components constituting the cover panel CVP as a whole may have a color reflectance of gray. However, this is not limited to this, and the cover panel CVP as a whole may have a color reflectance of gray by taking into consideration the reflectance of each of the components constituting the cover panel CVP as a whole. For example, some components of the cover panel CVP may have a black color, and other components of the cover panel CVP may have a white or gray color. Alternatively, some components of the cover panel CVP may have a gray color, and other components of the cover panel CVP may have a white or gray color. Each of these embodiments will be described later.

[0089] According to an embodiment of the present invention, the cover panel CVP may contact the display panel EP. As an example, the cover panel CVP may contact the rear surface of the display panel EP.

[0090] According to an embodiment of the present invention, the lower panel UP may include a first adhesive layer AP1, a second adhesive layer AP2, and a protective layer PF. The first adhesive layer AP1 has adhesiveness and may be disposed between the display panel EP and the protective layer PF to adhere to the display panel EP and the protective layer PF, respectively. The protective layer PF may be disposed below the display panel EP. The second adhesive layer AP2 may be disposed below the protective layer PF.

[0091] However, the first adhesive layer AP1 and the second adhesive layer AP2 may be omitted and the protective layer PF may be attached to the display panel EP.

[0092] The lower member UM according to an embodiment of the present invention may include a cushion layer FF, a third adhesive layer AP3, or a support layer UF, etc. Although the drawings show the case where the lower member UM includes the cushion layer FF, the support layer UF disposed under the cushion layer FF, and the third adhesive layer AP3 adhered to the cushion layer FF and the support layer UF, the lower member UM may include other components, and the stacking structure between each component may be changed.

[0093] The cushioning layer FF may be provided to protect the display panel EP and the electronic module EM against physical shocks applied from outside the electronic device. The cushioning layer FF may have sufficient strength to protect the display panel EP and the electronic module EM and to define the opening UM-OP of the lower member UM. The cushioning layer FF may also be resin foam for shock absorption.

[0094] The support layer UF may be a support substrate that supports components included in the electronic device ED, including the display panel EP. For example, the support layer UF may be made of metal, and may be a thin-film metal substrate. The support layer UF may have functions such as heat dissipation or electromagnetic wave shielding.

[0095] The first adhesive layer AP1, the second adhesive layer AP2, and the protective layer PF may not overlap the opening UP-OP. The second adhesive layer AP2 may be disposed between the protective layer PF and the cushion layer FF and may contact the protective layer PF and the cushion layer FF, respectively.

[0096] The cushion layer FF, the third adhesive layer AP3, and the support layer UF may not overlap the opening UM-OP.

[0097] The first adhesive layer AP1, protective layer PF, second adhesive layer AP2, cushion layer FF, third adhesive layer AP3, and support layer UF may be separated from the rear surface of the display panel EP in this order. The adhesive layers AP1, AP2, and AP3 of the present invention may be optically clear adhesive layers. Alternatively, the adhesive layers AP1, AP2, and AP3 may be pressure-sensitive adhesives.

[0098] The protective layer PF may include a first cover layer CV1 (FIG. 7) and a second cover layer CV2 (FIG. 7), as shown in FIG. 7 described below.

[0099] Without being limited thereto, the protective layer PF may include a first cover layer CV1 (FIG. 8a), a second cover layer CV2 (FIG. 8a), and a protective film BF (FIG. 8a) as shown in FIG. 8a described later, and the protective layer PF may be a protective film BF (FIGS. 9a, 10) as shown in FIG. 9a, 10, and 11 described later.

[0100] The structure or structure group constituting the protective layer PF is not limited to any one of the above-mentioned embodiments, and each embodiment will be described later.

[0101] According to one embodiment of the present invention, the protective layer PF may have a gray reflectance, but is not limited thereto. The cover panel CVP as a whole may have a gray reflectance, the protective layer PF may have a white reflectance, or only a portion of the protective layer PF may have a black reflectance.

[0102] The second light LA-IL emitted from the light source LA to the cover panel CVP may be reflected by the surfaces where the layers constituting the cover panel CVP meet, but is not limited to this and may also be reflected inside each structure.

[0103] The meaning that the cover panel CVP of the present invention has a color reflectance substantially the same as a gray color is the same as saying that the reflectance between the light reflected and exiting within or between each component contained in the cover panel CVP and the second light LA-IL incident on the cover panel CVP has a color reflectance of a gray color.

[0104] The electronic module EM may overlap the opening of the cover panel CVP in a plane. More specifically, the electronic module EM may overlap the opening UP-OP of the lower panel UP and the opening UM-OP of the lower member UM in a plane. As an example, the electronic module EM may be housed in the opening of the cover panel CVP. A side surface EM-S of the electronic module EM may be spaced apart from the opening of the cover panel CVP.

[0105] As shown, the protective layer PF may be a single layer, but is not limited to this and may be made up of multiple layers.

[0106] According to one embodiment of the present invention, the protective layer PF may comprise a polyethylene terephthalate (PET) film.

[0107] According to one embodiment of the present invention, the cover panel CVP may include a light-blocking layer. The light-blocking layer may exhibit a light-blocking effect. The light-blocking layer may be a bonding material containing a black pigment or dye. The light-blocking layer may be provided in the form of an adhesive film made of a base resin such as an acrylic resin, a silicone resin, a urethane resin, or an imide resin and a light-blocking resin containing a pigment or dye, or may be a bonding layer formed by photo-curing or thermally curing a liquid light-blocking resin. The light-blocking layer included in the protective layer PF may have a black color. However, the light-blocking layer is not limited to this, and the color is not limited to black as long as it contains a light-blocking material.

[0108] 7 is a cross-sectional view of a portion of an electronic device according to an embodiment of the present invention. Specifically, it is an enlarged view of the dotted line portion of FIG. 6. In FIG. 7, the configuration of the lower panel may be partially different from that in FIG. 5.

[0109] 7, for convenience of explanation, Fig. 7 only shows that the first incident light IL-1 emitted from the light source LA of the display panel EP toward the opening UP-OP (Fig. 6) is reflected as the first reflected light OL-1 in the first area AA1 on the rear surface of the display panel EP. However, in the relationship between the first incident light IL-1 and the display panel EP, the area where the reflected light is formed is not limited to the first area AA1, and the reflected light may be formed between the light source LA and the rear surface of the display panel EP.

[0110] The figure only shows that the second incident light IL-2 incident on the cover panel CVP (FIG. 6) from the light source LA of the display panel EP is reflected as the second reflected light OL-2 from the second area AA2 between the first adhesive layer AP1 and the first cover layer CV1, and is reflected as the third reflected light OL-3 from the third area AA3 between the first cover layer CV1 and the second cover layer CV2. However, in the relationship between the second incident light IL-2 and the cover panel CVP (FIG. 6), the portion where the reflected light is formed is not limited thereto, and the reflected light may be formed between the second cover layer CV2 and the second adhesive layer AP2, and may be formed between each configuration and other configurations.

[0111] As described above in Figure 6, the protective layer PF of the cover panel CVP in Figure 7 may include a first cover layer CV1 and a second cover layer CV2. The first cover layer CV1 may have a first reflectance, and the second cover layer CV2 may have a second reflectance.

[0112] The reflectance of the first cover layer CV1 and the second cover layer CV2 may be substantially the same. "Substantially the same" means that they have the same hue, meaning that they may have the same color reflectance. The first cover layer CV1 and the second cover layer CV2 may be white or gray, and the color reflectance of each of the first cover layer CV1 and the second cover layer CV2 may correspond to the color reflectance of the white or gray color.

[0113] In this case, taking into consideration the reflectance of the first cover layer CV1 and the second cover layer CV2, and the reflectance of the first adhesive layer AP1, the second adhesive layer AP2, and the cushion layer FF, the cover panel CVP (FIG. 6) may have a gray reflectance.

[0114] 8a to 8d are cross-sectional views of a portion of an electronic device according to an embodiment of the present invention, and in particular, show an embodiment different from the embodiment of FIG.

[0115] 8a, as described above in FIG. 6, the protective layer PF of the cover panel CVP may include a first cover layer CV1, a second cover layer CV2, and a protective film BF, which may be disposed between the first cover layer CV1 and the second cover layer CV2.

[0116] According to one embodiment of the present invention, the first cover layer CV1 may contact one side of the protective film BF, and the second cover layer CV2 may contact the other side of the protective film BF. For example, the first cover layer CV1 and the second cover layer CV2 may be printed or coated layers of the protective film BF. That is, the first cover layer CV1 may be a first printed layer on one side of the protective film BF, and the second cover layer CV2 may be a second printed layer on the other side of the protective film.

[0117] The first incident light IL-1 may be formed as the first reflected light OL-1 in the first area AA1 on the back surface of the display panel, the second incident light IL-2 may be formed as the second reflected light OL-1 in the second area AA2 between the first adhesive layer AP1 and the first cover layer CV1, and may be formed as the third reflected light OL-3 in the third area AA3 between the protective film BF and the second cover layer CV2.

[0118] As described above in Figure 7, for the sake of convenience of explanation, only a portion of the reflected light is shown, and in the relationship between the first incident light IL-1 and the display panel EP, the area in which the reflected light is formed is not limited to the first area AA1, and in the relationship between the second incident light IL-2 and the cover panel CVP (Figure 6), the area in which the reflected light is formed is not limited to the second area AA2 or the third area AA3.

[0119] According to one embodiment of the present invention, the first reflectance of the first cover layer CV1 may be greater than the second reflectance of the second cover layer CV2. The first cover layer CV1 may have a white color, and the second cover layer CV2 may have a gray or black color. That is, the first cover layer CV1 may have a color reflectance corresponding to the white color, and the second cover layer CV2 may have a color reflectance corresponding to the gray or black color. Furthermore, the first cover layer CV1 may be a transparent layer.

[0120] The protective film BF may have a reflectance equal to or greater than the second reflectance of the second cover layer CV2. For example, the protective film BF may have a color reflectance corresponding to white color and may be a transparent layer.

[0121] In this case, the cover panel CVP (FIG. 6) may have a gray color reflectance by considering the reflectance of the first cover layer CV1, the protective film BF, and the second cover layer CV2, and the reflectance of the first adhesive layer AP1, the second adhesive layer AP2, and the cushion layer FF. Similarly to FIG. 8a, in the embodiments of FIGS. 8b to 8d, the cover panel CVP (FIG. 6) may have a gray color reflectance by considering the color reflectance of the components of the cover panel CVP (FIG. 6).

[0122] According to one embodiment, a second cover layer CV2 may be provided to have the function of the light blocking layer described above.

[0123] Hereinafter, the configurations of FIGS. 8b to 8d that differ from the case of FIG. 8a will be described in detail.

[0124] 8b, the first cover layer CV1′ may have a gray color, and the second cover layer CV2′ may have a gray or black color. The first reflectance of the first cover layer CV1′ may be greater than or equal to the second reflectance of the second cover layer CV2′.

[0125] That is, the first cover layer CV1' may have a color reflectance corresponding to a gray color, and the second cover layer CV2' may have a color reflectance corresponding to a gray color or a black color.

[0126] Referring to FIG. 8c, a first reflectance of the first cover layer CV1'' may be greater than a second reflectance of the second cover layer CV2''.

[0127] The first cover layer CV1" may have a gray color, and the second cover layer CV2" may have a white color. Alternatively, the second cover layer CV" may be a transparent layer.

[0128] 8d, the first adhesive layer AP1 according to an embodiment of the present invention may include a plurality of patterns PT where resin is applied in a pattern, and spaces SP between the patterns PT where no resin is applied. The first cover layer CV1′ may have a higher reflectance than the second cover layer CV2′.

[0129] The multiple patterns PT may include an embossed pattern with fine convex and concave portions. After forming the embossed pattern to provide double-sided adhesiveness, objects to be bonded are attached to both sides, and pressure is applied to the objects to be bonded, so that the convex portions are pressed and expanded into a flat surface, and as the concave portions gradually narrow, degassing occurs through the concave portions. After this pressure application is complete, a flat adhesive layer without air bubbles or embossing can be formed. In other words, unlike conventional adhesive layers, the adhesive layer can be bubble-free, preventing a decrease in adhesive strength.

[0130] According to an embodiment of the present invention, the objects to be bonded may be a display panel EP and a cover panel CVP (FIG. 6). Specifically, the first adhesive layer AP1 may be bonded to the display panel EP and the first cover panel CV1′, respectively.

[0131] Figures 9a to 9c are cross-sectional views of a portion of an electronic device according to an embodiment of the present invention, and in particular Figures 9a to 9c show an embodiment different from the embodiment of Figures 7 and 8a to 8d.

[0132] Referring to FIG. 9a, the protective layer PF of the cover panel CVP can be a protective film BF, as described above in FIG.

[0133] The first incident light IL-1 may be formed as a first reflected light OL-1 in a first area AA1 on the back surface of the display panel EP, and the second incident light IL-2 may be formed as a second reflected light OL-1 in a second area AA2 between the back surface of the display panel EP and the first cover layer CV1, and may be formed as a third reflected light OL-3 in a third area AA3 between the protective film BF and the second cover layer CV2.

[0134] For ease of explanation, only a portion of the reflected light is shown, and in the relationship between the first incident light IL-1 and the display panel EP, the area where reflected light is formed is not limited to the first area AA1, and in the relationship between the second incident light IL-2 and the cover panel CVP (Figure 6), the area where reflected light is formed is not limited to the second area AA2 or the third area AA3.

[0135] For example, the first cover layer CV1 may have adhesive properties and be in contact with the display panel EP and the protective film BF, respectively, and the second cover layer CV2 may have adhesive properties and be in contact with the protective film BF and the cushion layer FF, respectively.

[0136] The first cover layer CV1 and the second cover layer CV2 may be an optically transparent adhesive layer, but are not limited to such an optically transparent adhesive layer. For example, the first cover layer CV1 may be an embossed pressure-sensitive adhesive.

[0137] The first cover layer CV1 may have a lower reflectance than the second cover layer CV2. The first cover layer CV1 may have a color reflectance of gray or white. The second cover layer CV2 may have a color reflectance of white and may be a transparent layer.

[0138] In this case, the cover panel CVP (FIG. 6) may have a gray reflectance, taking into consideration the reflectance of the first cover layer CV1 and the second cover layer CV2, and the reflectance of the protective film layer BF and the cushion layer FF.

[0139] 9b to 9c, similarly to FIG. 9a, the cover panel CVP (FIG. 6) may have a gray color reflectance in consideration of the color reflectance of the cover panel CVP (FIG. 6) configuration.

[0140] 9b and 9c, the configurations different from that of FIG. 9a will be described in detail below.

[0141] 9b, the first cover layer CV1' may have a higher reflectance than the second cover layer CV2'. The first cover layer CV1' may have a white reflectance or may be a transparent layer. The second cover layer CV2' may have a gray reflectance or may have a black reflectance.

[0142] Referring to FIG. 9c, the first reflectance of the first cover layer CV1″ may have substantially the same color reflectance as the second reflectance of the second cover layer CV2″. The first cover layer CV1″ and the second cover layer CV2″ may have color reflectances that are gray.

[0143] Figure 10 is a cross-sectional view of a portion of an electronic device according to an embodiment of the present invention, specifically, Figure 10 shows an embodiment different from the embodiments of Figures 7, 8a to 8d, and 9a to 9c.

[0144] Referring to FIG. 10, the protective layer PF of the cover panel CVP can be a protective film BF, as described above in FIG.

[0145] The first incident light IL-1 may be formed as a first reflected light OL-1 in a first area AA1 on the rear surface of the display panel EP, the second incident light IL-2 may be formed as a second reflected light OL-1 in a second area AA2 between the rear surface of the display panel EP and the first cover layer CV1, and may be formed as a third reflected light OL-3 in a third area AA3 between the second adhesive layer AP2 and the second cover layer CV2. In this case, the first cover layer CV1 may be a first adhesive layer, and the second cover layer CV2 may be a cushion layer FF.

[0146] For ease of explanation, only a portion of the reflected light is shown, and in the relationship between the first incident light IL-1 and the display panel EP, the area where reflected light is formed is not limited to the first area AA1, and in the relationship between the second incident light IL-2 and the cover panel CVP (Figure 6), the area where reflected light is formed is not limited to the second area AA2 or the third area AA3.

[0147] The first cover layer CV1 may have a first reflectance smaller than the second reflectance of the second cover layer CV2, and the first cover layer CV1 may be the first adhesive layer AP1 described above in FIG. 6, and the second cover layer CV2 may be the cushion layer FF described above in FIG. 6.

[0148] The first cover layer CV1, the protective film BF, or the second adhesive layer AP2 may each have a white reflectance or be transparent, and the second cover layer CV2 may be gray or black, provided that the color reflectance of the cover panel CVP is substantially the same as that of the gray color.

[0149] Figure 11 is a cross-sectional view of a portion of an electronic device according to an embodiment of the present invention, specifically showing an embodiment different from the embodiments of Figures 7, 8a-8d, 9a-9c, and 10.

[0150] Referring to Figure 11, the first incident light IL-1 may be formed as the first reflected light OL-1 in a first area AA1 on the back surface of the display panel EP, the second incident light IL-2 may be formed as the second reflected light OL-1 in a second area AA2 between the back surface of the display panel EP and the first cover layer CV1, may be formed as the third reflected light OL-3 in a third area AA3 between the first cover layer CV1 and the protective film BF, and may be formed as the fourth reflected light OL-4 in a fourth area AA4 between the protective film BF and the second cover layer CV2.

[0151] For ease of explanation, only a portion of the reflected light is shown, and in the relationship between the first incident light IL-1 and the display panel EP, the area where the reflected light is formed is not limited to the first area AA1, and in the relationship between the second incident light IL-2 and the cover panel CVP (Figure 6), the area where the reflected light is formed is not limited to the second area AA2, the third area AA3, and the fourth area AA4.

[0152] Referring to FIG. 11, as described above in FIG. 6, the protective layer PF of the cover panel CVP can be a protective film BF.

[0153] The first cover layer CV1 may have a first reflectance, and the second cover layer CV2 may have a second reflectance. The first cover layer CV1 may have adhesive properties and be in contact with the display panel EP and the protective film BF, respectively. The second cover layer CV2 may have adhesive properties and be in contact with the protective film BF and the cushion layer FF, respectively.

[0154] The reflectance of the first cover layer CV1 and the second cover layer CV2 may be substantially the same. "Substantially the same" means that they have the same hue, i.e., they may have the same color reflectance. The first cover layer CV1 and the second cover layer CV2 may be white or gray, and the color reflectance of each of the first cover layer CV1 and the second cover layer CV2 may correspond to the color reflectance of the white or gray color. The protective film BF may have a color reflectance corresponding to the color reflectance of the gray color.

[0155] In this case, taking into consideration the reflectance of the first cover layer CV1 and the second cover layer CV2, and the reflectance of the first adhesive layer AP1, the second adhesive layer AP2, and the cushion layer FF, the cover panel CVP (FIG. 6) may have a gray reflectance.

[0156] 12a to 12f are photographs showing the brightness difference within the display area.

[0157] Referring to Figures 12a to 12f, Figure 12a shows the brightness difference within the display area corresponding to CASE 1 described later, Figure 12b shows the brightness difference corresponding to CASE 2 described later, Figure 12c shows the brightness difference corresponding to CASE 3 described later, Figure 12d shows the brightness difference corresponding to CASE 4 described later, Figure 12e shows the brightness difference corresponding to CASE 5 described later, and Figure 12f shows the brightness difference corresponding to CASE 6 described later.

[0158] Table 1 below shows the luminance difference and the reflectance of the cover panel for CASE 1 to CASE 6, which show the luminance difference in Figures 12a to 12f. The reflectance and luminance difference of the cover panel for each case measured below correspond to the case where the brightness of the light emitted from the light source of the display panel is 0.02 nit.

[0159] The luminance difference described below refers to the difference between the luminance of the portion of the electronic device where the cover panel and the opening overlap and the luminance of the portion of the electronic device where the opening does not overlap.

[0160] CASE 1 shows a case where the protective layer includes a transparent protective film and a black light-shielding layer underneath the protective film.

[0161] Case 2 shows a case where the protective layer includes a transparent protective film and first and second cover layers with a predetermined color reflectance. It also shows a case where Emboss PSA (Pressure Sensitive Adhesive) is used for the first adhesive layer located on top of the protective layer. Specifically, this corresponds to a case where white is printed three times on the first cover layer and black is printed twice on the second cover layer.

[0162] Case 3 shows a case where the protective layer includes a transparent protective film and first and second cover layers with a predetermined color reflectance. Compared to Case 2, Case 3 corresponds to a case where a general PSA is used for the first adhesive layer located on top of the protective layer, and white color is printed on the first cover layer and black color is printed on the second cover layer.

[0163] CASE 4 corresponds to a case where the color change rate of some cover layers is different from CASE 3, and corresponds to a case where gray color is printed on the first cover layer and black color is printed on the second cover layer.

[0164] CASE 5 shows a case where the protective layer is made of a gray adhesive layer.

[0165] Compared to CASE 2, CASE 6 corresponds to the case where white color is printed once on the first cover layer and black color is printed twice on the second cover layer.

[0166] [Table 1]

[0167] The lower the luminance difference, the smaller the deviation in the amount of reflected light between the portion of the cover panel that overlaps with the opening and the portion that does not overlap with the opening. This reduced deviation in the amount of light prevents uneven lighting in the display area of ​​the electronic device, ensuring uniformity in the display quality of the electronic device's appearance. Compared to Case 1, in which the reflectance of the cover panel is 3.6%, Cases 2 to 6, in which the reflectance of the cover panel is between 23.5% and 66.3%, have a lower luminance difference than Case 1.

[0168] Compared to CASE 4 to CASE 6 where the reflectance of the cover panel is 23.5% or more and 35.7% or less, CASE 2 and CASE 3 where the reflectance of the cover panel is 49.3% or more have an even lower luminance difference.

[0169] In CASE 5, the protective layer is made of an adhesive layer having a gray color.

[0170] In Cases 4 and 6, the protective layer includes a transparent protective film and a first or second cover layer having a predetermined color reflectance. In Cases 2 and 3, the protective layer may include a transparent protective film and a first or second cover layer having a predetermined color reflectance, as in Cases 4 and 6. In this case, the protective film may have higher rigidity than the adhesive layer.

[0171] Therefore, in CASE 4 and CASE 6, the protective layer further includes a protective film, which can provide higher rigidity than in CASE 5. This can improve the support force of the cover panel for the display panel. In CASE 2 and CASE 3, the protective layer further includes a protective film, which can provide higher rigidity than in CASE 5. The reflectance of the cover panel is 49.3% or more, which can provide a lower brightness difference than in CASE 4.

[0172] Although the present invention has been described above with reference to preferred embodiments, it should be understood by those skilled in the art or those having ordinary knowledge in the art that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the present invention as set forth in the claims below. Therefore, the technical scope of the present invention should not be limited to the contents of the detailed description of the specification, but should be determined by the claims. [Industrial Applicability]

[0173] The present invention can improve the display characteristics of electronic devices and reduce the brightness deviation between the opening of the cover panel and the area adjacent thereto.

Claims

1. a display panel for displaying images; a cover panel contacting a lower portion of the display panel, the cover panel defining an opening and having a gray reflectance; an electronic module disposed so as to overlap the opening on a plane; The cover panel is a first cover layer that does not overlap the opening and has a first reflectivity; a second cover layer disposed below the first cover layer without overlapping the opening, the second cover layer having a second reflectivity.

2. The electronic device of claim 1 , wherein the second reflectance is less than or equal to the first reflectance.

3. The electronic device of claim 1 , wherein the reflectivity of the cover panel is greater than or equal to the reflectivity of the display panel.

4. one of the first cover layer and the second cover layer has a gray color; The electronic device of claim 1 , wherein the other of the first cover layer and the second cover layer has a white color.

5. The first cover layer is Available in grey or white colour The second cover layer is 10. The electronic device of claim 1, having a gray or black color.

6. The cover panel is The electronic device of claim 1 , further comprising a protective film interposed between the first cover layer and the second cover layer.

7. The electronic device of claim 6 , wherein the protective film is a transparent layer.

8. The electronic device of claim 6 , wherein the protective film has a reflectance equal to or greater than the second reflectance.

9. The cover panel is a lower member disposed below the second cover layer; the first cover layer has adhesiveness and is in contact with the protection film and the display panel, respectively; The electronic device of claim 6 , wherein the second cover layer has adhesiveness and is in contact with the protective film and the lower member, respectively.

10. the first cover layer has adhesiveness and is in contact with the protection film and the display panel, respectively; The electronic device of claim 6 , wherein the second cover layer is a cushion layer.

11. the first cover layer contacts one side of the protective film; The electronic device of claim 6 , wherein the second cover layer contacts the other side of the protective film.

12. The first cover layer is Contains multiple patterns, The electronic device according to claim 6 , wherein the protective film and the display panel are adhered to each other.

13. a display panel for displaying images; a cover panel contacting a lower portion of the display panel and defining an opening; an electronic module disposed so as to overlap the opening on a plane; The cover panel is a protective film that does not overlap the opening; a first cover layer disposed between the display panel and the protective film and in contact with the protective film; a second cover layer disposed under the protective film and in contact with the protective film, The cover panel has a color reflectance of 15% or more and 70% or less.

14. the first cover layer has a gray or white color; The electronic device of claim 13 , wherein the second cover layer has a gray or black color.

15. The cover panel is a lower member disposed below the second cover layer; a first adhesive layer having adhesiveness and contacting the display panel and the first cover layer, respectively; The electronic device according to claim 13 , further comprising: a second adhesive layer having adhesive properties and contacting the second cover layer and the lower member, respectively.

16. any one of the first adhesive layer, the first cover layer, the protective film, the second cover layer, and the second adhesive layer has a white color or a gray color; The electronic device of claim 15 , wherein the remaining layers among the first adhesive layer, the first cover layer, the protective film, the second cover layer, and the second adhesive layer are transparent layers.

17. The first adhesive layer is Available in white or grey colour The second adhesive layer is 16. The electronic device of claim 15, having a white or gray color.

18. the protective film, the first cover layer, the second cover layer, the first adhesive layer, and the second adhesive layer are transparent; The electronic device of claim 15 , wherein the reflectivity of the lower member is substantially the same as the reflectivity of a gray color.

19. a display panel for displaying images; a cover panel in contact with a lower portion of the display panel, the cover panel having an opening defined therein and a gray reflectance; an electronic module disposed so as to overlap the opening on a plane; The cover panel is a protective film that does not overlap the opening; a first cover layer disposed between the display panel and the protective film and in contact with the protective film; a first adhesive layer disposed between the first cover layer and the display panel and in contact with the first cover layer and the display panel, respectively; a lower member disposed below the protective film; a second cover layer disposed between the lower member and the protective film and in contact with the protective film; a second adhesive layer disposed between the second cover layer and the lower member and in contact with the second cover layer and the lower member, respectively.

20. The protective film is transparent, the first cover layer has a gray or white color; 20. The electronic device of claim 19, wherein the second cover layer has a gray or black color.

Images