Window member and method for manufacturing a window member

By designing a window component with a light-shielding pattern featuring multiple curved sections in electronic devices, and using laser beam processing to form a narrow-width signal transmission area, the problems of reducing the bezel area and ensuring signal transmission integrity are solved, thereby improving the appearance and functionality of electronic devices.

CN112289829BActive Publication Date: 2025-12-09SAMSUNG DISPLAY CO LTD
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Patent Information

Application Number
CN202010708658.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-07-22
Filing Date
2020-07-22
Publication Date
2025-12-09
Estimated Expiration
2040-07-22

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively reduce the bezel area in portable electronic devices while maintaining the integrity of signal transmission and display functions.

Method used

Design a window component including a base substrate and a light-shielding layer, the light-shielding layer being composed of first and second light-shielding patterns, the second light-shielding pattern having multiple curved portions on a plane, configured to provide a signal transmission area on its inner side, and forming a narrow-width signal transmission area by laser beam processing.

Benefits of technology

This approach achieves the goal of reducing the bezel area while maintaining the integrity of signal transmission and display functions, thus improving the aesthetics and functionality of electronic devices.

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Abstract

The present application relates to a window member and a method of manufacturing the same. The window member includes a base substrate and a light shielding layer, wherein the light shielding layer includes a first light shielding pattern and a second light shielding pattern, the first light shielding pattern is disposed in a first region of the base substrate, and the second light shielding pattern is disposed in a second region of the base substrate while being spaced apart from the first light shielding pattern and providing a signal transmission region at an inner side of the second light shielding pattern. The second light shielding pattern includes an edge having a plurality of curved portions in a plane. This arrangement reduces the area of the light shielding pattern of the window member adjacent to the signal transmission region.
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Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2019-0088412, filed on July 22, 2019, which is incorporated herein by reference for all purposes, as if fully set forth herein. Technical Field

[0003] Exemplary embodiments of the present invention generally relate to window components, electronic devices including the window components, and methods of manufacturing the window components, and more specifically, to window components having a light-shielding pattern with a reduced area adjacent to a signal transmission area, electronic devices including the window components, and methods of manufacturing the window components. Background Technology

[0004] In recent years, portable electronic devices have become widely available, and their functions and designs have become increasingly diverse. Users prefer electronic devices that include a wider display area and a narrower bezel area. Various shapes of electronic devices have been developed to reduce the area of ​​the bezel area. Multiple manufacturing methods for reducing the area of ​​the bezel area have been proposed.

[0005] The information disclosed above in the background section is only for understanding the background technology of the inventive concept, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0006] An apparatus constructed according to an exemplary embodiment of the present invention can provide a window member including a light-shielding pattern with a narrow width, an electronic device including the window member, and a method of manufacturing the window member, the method including a process of manufacturing a light-shielding pattern with a narrow width.

[0007] Other features of the inventive concept will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practice of the inventive concept.

[0008] An exemplary embodiment of the present invention provides a window component comprising a base substrate and a light-shielding layer. The light-shielding layer includes a first light-shielding pattern and a second light-shielding pattern, wherein the first light-shielding pattern is disposed in a first region of the base substrate, and the second light-shielding pattern is disposed in a second region of the base substrate, spaced apart from the first light-shielding pattern, and configured to provide a signal transmission region inside the second light-shielding pattern. Here, the second light-shielding pattern includes an edge having a plurality of curved portions on a plane.

[0009] In an implementation, the second light-shielding pattern may have a multi-layered structure.

[0010] In an embodiment, the second light-shielding pattern can include a first layer disposed on the base substrate and a second layer disposed on the first layer, and side surfaces of the first layer and side surfaces of the second layer can be aligned in a cross-section.

[0011] In an embodiment, the edge can include an outer edge and an inner edge configured to define the signal transmission area, and the inner edge is a closed line.

[0012] In an embodiment, at least one of the outer edge and the inner edge can include a plurality of curved portions.

[0013] In an embodiment, a distance between the outer edge and the inner edge can be about 0.05 mm to about 1.50 mm.

[0014] In an embodiment, the signal transmission area can be provided as a plurality.

[0015] In an embodiment, the base substrate can be a glass substrate, and the second light-shielding pattern can be directly disposed on one surface of the glass substrate.

[0016] In an embodiment, the first light-shielding pattern and the second light-shielding pattern can have the same layer structure.

[0017] In an embodiment, each of the curved portions can include a curved line concaved toward an inside of the second light-shielding pattern in a plane.

[0018] In an embodiment, a pitch of the curved portions can be about 5 μm to about 30 μm.

[0019] In an embodiment, the second light-shielding pattern can include a first layer having a black color and a second layer having a color.

[0020] In an exemplary embodiment of the inventive concept, an electronic device includes a display panel including a display area configured to display an image and a non-display area disposed adjacent to the display area, a window member disposed on the display panel, and an input sensor disposed between the display panel and the window member. Here, the window member includes a base substrate and a light-shielding pattern disposed on a bottom surface of the base substrate while being surrounded by the display area in a plane, and configured to provide a signal transmission area at an inside of the light-shielding pattern, and the light-shielding pattern includes an edge having a plurality of curved portions in the plane.

[0021] In an embodiment, the electronic device can further include an electronic module disposed below the window member and the display panel and aligned with the signal transmission area.

[0022] In an embodiment, the electronic module can include a camera module, an infrared sensor, or a light sensor.

[0023] In an embodiment, at least one of the display panel and the input sensor can include a first area corresponding to the signal transmission area and a second area adjacent to the first area, and the first area can have a greater light transmittance than the second area.

[0024] In an exemplary embodiment of the inventive concept, a method for manufacturing a window member includes providing a base substrate; and forming a light-shielding layer on one surface of the base substrate, the light-shielding layer including a first light-shielding pattern and a second light-shielding pattern, wherein the second light-shielding pattern is spaced apart from the first light-shielding pattern and configured to define a signal transmission area at an inner side of the second light-shielding pattern. Here, forming the light-shielding layer includes forming a preliminary light-shielding pattern corresponding to the second light-shielding pattern on the one surface of the base substrate; and irradiating a local area of the preliminary light-shielding pattern with a laser beam.

[0025] In an embodiment, the preliminary light-shielding pattern can define a preliminary signal transmission area at an inner side of the preliminary light-shielding pattern, and upon irradiating the laser beam, the laser beam can be irradiated to an outer edge area of the preliminary light-shielding pattern adjacent to an outer edge of the preliminary light-shielding pattern and an inner edge area of the preliminary light-shielding pattern adjacent to an inner edge of the preliminary light-shielding pattern configured to define the preliminary signal transmission area.

[0026] In an embodiment, irradiating the laser beam can include irradiating the inner edge area of the preliminary light-shielding pattern with the laser beam to form the signal transmission area; and irradiating an outer edge area of the preliminary light-shielding pattern adjacent to the outer edge of the preliminary light-shielding pattern with the laser beam.

[0027] In an embodiment, irradiating the laser beam can include irradiating the laser beam from above a top surface of the base substrate.

[0028] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the application, and together with the description serve to explain the inventive concepts.

[0030] Figure 1 FIG. 1 is a perspective view showing an electronic device according to an exemplary embodiment of the inventive concept.

[0031] Figure 2 FIG. 2 is an exploded perspective view showing the electronic device according to the exemplary embodiment of the inventive concept.

[0032] Figure 3is a block diagram showing an electronic device according to an exemplary embodiment of the present inventive concept.

[0033] Figure 4A and Figure 4B is a sectional view showing a part of a display module according to an exemplary embodiment of the present inventive concept.

[0034] Figure 5A is a plan view showing a window member according to an exemplary embodiment of the present inventive concept.

[0035] Figure 5B is a sectional view showing a window member according to an exemplary embodiment of the present inventive concept.

[0036] Figure 5C is a partial plan view showing a window member according to an exemplary embodiment of the present inventive concept.

[0037] Figure 5D is an enlarged plan view showing a second light-shielding pattern of Figure 5C

[0038] Figure 5E is a plan view showing one embodiment of a second light-shielding pattern of Figure 5C

[0039] Figure 6A is a partial plan view showing a window member according to an exemplary embodiment of the present inventive concept.

[0040] Figure 6B is an enlarged plan view showing a second light-shielding pattern of Figure 6A

[0041] Figure 7A is a flowchart showing a method for manufacturing a window member according to an exemplary embodiment of the present inventive concept.

[0042] Figure 7B is a flowchart showing a process of forming a light-shielding layer of Figure 7A

[0043] Figure 8A is a plan view showing one process of a method for manufacturing a window member according to an exemplary embodiment of the present inventive concept.

[0044] Figure 8B is a sectional view showing one process of a method for manufacturing a window member according to an exemplary embodiment of the present inventive concept.

[0045] Figure 8C is a plan view showing one process of a method for manufacturing a window member according to an exemplary embodiment of the present inventive concept.

[0046] ​​​​Figure 8D is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0047] Figure 8E is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0048] Figure 8F is a plan view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0049] Figure 9A is a plan view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0050] Figure 9B is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0051] Figure 10 is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept. DETAILED DESCRIPTION

[0052] In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various example embodiments or implementations of the present invention. As used herein, the terms "embodiment" and "implementation" are interchangeable, and refer to a non-limiting example of an apparatus or method that employs one or more of the inventive concepts disclosed herein. It will be apparent, however, that various example embodiments can be practiced without these specific details, or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various example embodiments. In addition, various example embodiments can be different from one another but not necessarily mutually exclusive. For example, a specific shape, configuration, and / or characteristic of an example embodiment can be used or implemented in another example embodiment without departing from the present inventive concept.

[0053] Unless otherwise specified, the example embodiments shown are to be understood as providing exemplary features of some ways in which the present inventive concept can be practiced. Thus, unless otherwise specified, features, components, modules, layers, films, panels, regions, and / or aspects of various embodiments (hereinafter, individually or collectively referred to as "elements") can be combined, separated, interchanged, and / or rearranged without departing from the present inventive concept.

[0054] The use of cross-hatching and / or shading in the drawings is generally used to illustrate the boundaries and / or three-dimensional features of the components. As such, unless specified, the presence or absence of cross-hatching and / or shading is not intended to convey or indicate any preference or requirement for any particular material, material property, dimension, ratio, commonality of elements between illustrations, and / or any other characteristic, attribute, property, etc. of the elements being presented. Moreover, in the drawings, the size and relative sizes of elements can be exaggerated for clarity and / or descriptive purposes. While exemplary implementations can be described and illustrated herein as being implemented or implemented in a certain fashion, the examples described and / or illustrated herein could also be implemented in other ways than those specifically described.

[0055] When an element such as a layer, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. By the term "connected" as used herein, it is meant to include physical or electrical connections, and / or fluid connections, whether or not there is a direct physical or electrical contact, or fluid contact, between the elements associated with the connections. In addition, the DR1 axis, the DR2 axis, and the DR3 axis are not limited to the three axes of a rectangular coordinate system (such as the x-axis, the y-axis, and the z-axis), and can be interpreted in a broader sense. For example, the DR1 axis, the DR2 axis, and the DR3 axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purposes of the present disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" can be interpreted to include any one of X, Y, Z, or any combination of any two or more of X, Y, and Z, such as, for example, XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0056] Although the terms "first," "second," etc. can be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the present disclosure.

[0057] Spatially relative terms such as "beneath", "below", "under", "lower", "above", "upper", "over", "higher", "side" (as in "sidewall") and the like, can be used herein for descriptive purposes, and, thereby, to describe one element's relationship to another element(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use, operation and / or manufacture in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The devices can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0058] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including", "includes", "having", "has", "united", "unites", "containing", "contains" or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising". Additionally, it should be noted that, as used herein, the terms "essentially", "about" and other similar terms are used as synonyms for "approximately" or "around", and are intended to allow for a reasonable range of variability in measurement, calculation or provided values due to such factors as measuring device accuracy or possible variations in the processes under discussion.

[0059] Various exemplary embodiments are described herein with reference to cross-sectional and / or exploded illustrations that are schematic illustrations of idealized exemplary embodiments and / or intermediate structures. As such, deviations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, the exemplary embodiments disclosed herein are not to be construed as being limited to the particular illustrative shapes as such. Indeed, the exemplary embodiments are to cover variations in shapes resulting from, for example, manufacturing. In this manner, the regions illustrated in the figures can have originally defined shapes, and the regions can not have originally defined shapes, and therefore, the regions illustrated in the figures are not necessarily to scale. Accordingly, the regions illustrated in the figures are schematic and are merely intended to aid in the understanding of the exemplary embodiments.

[0060] In accordance with common practice, some of the examples described and illustrated herein are based on functional blocks, units and / or modules. Those skilled in the art will appreciate that these blocks, units and / or modules are represented in the drawings by conceptual representations of electronic (or optical) circuits embodying the several elements of the several features. Those skilled in the art will appreciate that the symbolic representations of the several elements in these conceptual representations are intended to convey functional circuitry (i.e., included hardware) that would be implemented in practicing the several examples. Those skilled in the art will appreciate the timing requirements of these functional circuits; and, as such require timing circuitry (e.g., clock pulses, state machines, etc.) not specifically shown in the drawings. In the several examples, a processor-based element is shown in block diagram form. Those skilled in the art will appreciate that the processor-based element can be implemented with one or more programmed microprocessors and associated circuitry, with one or more digital signal processors (DSPs) and associated circuitry, with appropriate analog to digital converters, with appropriate digital to analog converters, with software (e.g., microcode) to program and control the processor-based element, and / or with firmware to drive the processor-based element. It is also contemplated that each of the blocks, units and / or modules can be implemented by dedicated hardware as well as in combinations of dedicated hardware to perform some functions and a processor (e.g., one or more programmed microprocessors and associated circuitry) to perform other functions. Also, each of the blocks, units and / or modules of some of the examples can be physically separated into two or more individual blocks, units and / or modules without departing from the scope of the inventive concept. Moreover, the blocks, units and / or modules of some of the examples can be physically combined into more complex blocks, units and / or modules without departing from the scope of the inventive concept.

[0061] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0062] Hereinafter, exemplary embodiments of the inventive concept will be described with reference to the accompanying drawings.

[0063] Figure 1 FIG. 1 is a perspective view illustrating an electronic device according to an exemplary embodiment of the inventive concept. Figure 2 FIG. 2 is an exploded perspective view illustrating an electronic device according to an exemplary embodiment of the inventive concept. Figure 3 FIG. 3 is a block diagram representing an electronic device according to an exemplary embodiment of the inventive concept.

[0064] Referring to Figure 1 , Figure 2 and Figure 3 , an electronic device EA can be activated to display an image according to an electrical signal. The electronic device EA can correspond to a tablet computer, a notebook computer, a personal computer, or a television. In this embodiment, a smart phone is exemplarily illustrated as the electronic device EA.

[0065] The electronic device EA can display an image IM on a display surface FS in a third direction DR3, the display surface FS being parallel to each of the first direction DR1 and the second direction DR2. The display surface FS on which the image IM is displayed can correspond to a front surface of the electronic device EA and a front surface of the window member 100. Hereinafter, the display surface of the electronic device EA, the front surface of the electronic device EA, and the front surface of the window member 100 will be denoted by the same reference numerals. The image IM can include a dynamic image as well as a static image. In Figure 1 In the embodiment, a clock window and an application icon are shown as examples of the image IM.

[0066] In the embodiment, a front surface (or a top surface) and a rear surface (or a bottom surface) of each of the limiting members are defined based on a direction in which the image IM is displayed. The front surface and the rear surface can be opposite to each other in the third direction DR3, and normal directions of the front surface and the rear surface can be parallel to the third direction DR3. Further, the directions indicated by the first direction DR1 to the third direction DR3 can be converted to each other as a relative concept.

[0067] The electronic device EA can include the window member 100, the display module 200, the driving circuit unit 300, the housing 400, and the electronic module 500. In the embodiment, the window member 100 and the housing 400 can be coupled to provide an external shape of the electronic device EA. The display module 200 includes a display panel 210 and an input sensor 220. The display panel 210 can include a display area for displaying the image IM and a non-display area disposed adjacent to the display area. The window member 100 can be disposed on the display panel 210, and the input sensor 220 can be disposed between the display panel 210 and the window member 100.

[0068] The window member 100 can include an optically transparent insulating material. For example, the window member 100 can include glass or plastic. The window member 100 can have a multi-layer structure or a single-layer structure. For example, the window member 100 can include a plurality of plastic films coupled by an adhesive, or include a glass substrate and a plastic film coupled by an adhesive.

[0069] The window member 100 can be divided into a transmissive area TA and a bezel area BZA in a plane. The transmissive area TA can correspond to the display area, and the bezel area BZA can correspond to the non-display area. In this specification, the expression "in a plane" can mean a case when viewed in the third direction DR3. Further, the "thickness direction" can mean the third direction DR3.

[0070] The transmissive area TA can be an optically transparent area. The bezel area BZA can have a relatively lower light transmittance than the transmissive area TA. The bezel area BZA defines a shape of the transmissive area TA. The bezel area BZA can be disposed adjacent to the transmissive area TA and surround the transmissive area TA.

[0071] The bezel area BZA can have a predetermined color. The bezel area BZA can cover the non-active area NAA of the display module 200 to prevent the non-active area NAA from being seen from the outside. However, embodiments of the present inventive concept are not limited thereto. For example, in a window member 100 according to another embodiment of the present inventive concept, the bezel area BZA can be omitted.

[0072] In an exemplary embodiment of the present inventive concept, the module area MA can overlap the electronic module 500, which will be described later. The electronic device EA can receive an external signal required for the electronic module 500 through the module area MA, or provide a signal output from the electronic module 500 to the outside. According to embodiments of the present inventive concept, the module area MA can overlap the transmissive area TA. Accordingly, the area of the transmissive area TA can be reduced by as much as the area for providing the module area MA in the transmissive area TA.

[0073] Although one module area MA is exemplarily shown in Figure 1 , embodiments of the present inventive concept are not limited thereto. For example, two or more module areas MA can be provided. Further, although the module area MA is exemplarily defined at the upper right end of the transmissive area TA in Figure 1 , embodiments of the present inventive concept are not limited thereto. For example, the module area MA can be defined in a different area, such as the upper left end of the transmissive area TA, the central portion of the transmissive area TA, the lower left end of the transmissive area TA, or the lower right end of the transmissive area TA. As Figure 2 indicated in, the module area MA can include a first module area MA-100 located on the window member 100 and a second module area MA-200 located on the display module 200.

[0074] As indicated in , the display module 200 can be provided below the window member 100. Here, "below" can mean the opposite direction of the direction in which the display module 200 provides the image IM. The display module 200 can display the image IM and detect the external input TC. The display module 200 can include a front surface IS including the active area AA and the non-active area NAA. The active area AA can be activated according to an electrical signal. Figure 2

[0075] In an embodiment, the active area AA can be an area in which the image IM is displayed and the external input TC is simultaneously detected. The transmissive area TA overlaps at least the active area AA. For example, the transmissive area TA overlaps all or at least a portion of the active area AA. Accordingly, a user can view the image IM or provide the external input TC through the transmissive area TA (see Figure 1 ).

[0076] The non-active area NAA can be an area covered by the bezel area BZA. The non-active area NAA can be disposed adjacent to the active area AA and surrounded by the active area AA. In the non-active area NAA, a driving circuit or a driving line for driving the active area AA can be disposed.

[0077] Although the display module 200 has a flat shape in the active area AA and the non-active area NAA in an embodiment, embodiments of the inventive concept are not limited thereto. For example, the display module 200 can be partially bent in the non-active area NAA. Here, the display module 200 can be bent toward the rear surface of the electronic device EA in the non-active area NAA, and thus, the area of the bezel area BZA in the front surface of the electronic device EA can be reduced. Alternatively, the display module 200 can be partially bent in the active area AA. In another embodiment, the non-active area NAA can be omitted from the display module 200.

[0078] The display module 200 can include the display panel 210 and the input sensor 220.

[0079] The display panel 210 can be a component that substantially generates an image IM. The image IM generated by the display panel 210 can be displayed on the front surface IS of the display module 200 and seen from the outside by a user through the transmission area TA.

[0080] The input sensor 220 can detect an external input TC applied from the outside. For example, the input sensor 220 can detect the external input TC provided through the window member 100. Here, the external input TC can correspond to a user's input. For example, the user's input can include various types of external inputs such as a part of the user's body, a pen, light, heat, or pressure. In an embodiment, the external input TC is illustrated by a touch operation applied through the display surface FS of the electronic device EA by using the user's hand. However, embodiments of the inventive concept are not limited thereto. For example, the external input TC can be provided in different types. Furthermore, according to the structure of the electronic device EA, the electronic device EA can detect the external input TC applied to the side surface or the rear surface of the electronic device EA.

[0081] The driving circuit unit 300 can be electrically connected to the display panel 210 and the input sensor 220. The driving circuit unit 300 can include a main circuit board MB, a first flexible film CF1, and a second flexible film CF2.

[0082] The first flexible film CF1 is electrically connected to the display panel 210. The first flexible film CF1 can connect the display panel 210 and the main circuit board MB. The first flexible film CF1 can be connected to the pads (display pads) of the display panel 210 located in the non-active area NAA. The first flexible film CF1 provides electrical signals to the display panel 210 for driving the display panel 210. These electrical signals can be generated from the first flexible film CF1 or the main circuit board MB.

[0083] The second flexible diaphragm CF2 is electrically connected to the input sensor 220. The second flexible diaphragm CF2 can connect the input sensor 220 and the main circuit board MB. The second flexible diaphragm CF2 can be connected to the pads (detection pads) of the input sensor 220 located in the non-active area NAA. The second flexible diaphragm CF2 provides an electrical signal to the input sensor 220 for driving the input sensor 220. This electrical signal can be generated from the second flexible diaphragm CF2 or the main circuit board MB.

[0084] The main circuit board MB may include various driving circuits for driving the display module 200 or connectors for power supply. Each of the first flexible film CF1 and the second flexible film CF2 may be connected to the main circuit board MB. According to embodiments of the present invention, the display module 200 can be easily controlled by a single main circuit board MB. However, embodiments of the present invention are not limited thereto. For example, in a display module 200 according to an embodiment of the present invention, the display panel 210 and the input sensor 220 may be connected to different main circuit boards, and one of the first flexible film CF1 and the second flexible film CF2 may not be connected to the main circuit board MB.

[0085] In one implementation, a region of the display module 200 corresponding to the module region MA may have a relatively higher transmittance than an effective region AA that does not overlap with the module region MA. For example, at least a portion of each of the components of the display panel 210 and the input sensor 220 may be removed. Therefore, the electronic module 500 overlapping with the module region MA can easily transmit and / or receive signals through the module region MA.

[0086] exist Figure 2 In this design, a predetermined aperture MH (hereinafter referred to as a module aperture) is exemplarily defined in a region of the display module 200 corresponding to the module region MA. The module aperture MH may be defined in the effective region AA and pass through the display module 200. The display panel 210 and the input sensor 220 may be penetrated by the module aperture MH. That is, the module aperture MH can be defined by removing all components of the display panel 210 and the input sensor 220 that overlap with the module region MA. Since the module aperture MH is defined in the effective region AA, the module region MA may be located in the transmission region TA.

[0087] On a plane, the electronic module 500 can overlap the module hole MH and the module area MA. The electronic module 500 can be disposed under the display module 200, and at least a portion of the electronic module 500 can be accommodated in the module hole MH. In more detail, the electronic module 500 can be disposed under the window member 100 and the display panel 210, and aligned with the signal transmission area STA (see Figure 5A ). The electronic module 500 can receive an external input TC transmitted through the module area MA, or provide an output through the module area MA. The electronic module 500 can include a camera module, an infrared sensor, or a light sensor.

[0088] The housing 400 is coupled with the window member 100. The housing 400 can be coupled with the window member 100 to provide an internal space. The display module 200 and the electronic module 500 can be accommodated in the internal space.

[0089] The housing 400 can include a material having relatively high rigidity. For example, the housing 400 can include a plurality of frames and / or plates made of glass, plastic, or metal. The housing 400 can stably protect components of the electronic device EA accommodated in the internal space from external impact.

[0090] Referring to Figure 3 , the electronic device EA can include the display module 200, the power module PM, the first electronic module EM1, and the second electronic module EM2. The display module 200, the power module PM, the first electronic module EM1, and the second electronic module EM2 can be electrically connected to each other.

[0091] The power module PM provides power required for overall operation of the electronic device EA. The power module PM can include a conventional battery module.

[0092] Each of the first electronic module EM1 and the second electronic module EM2 can include a plurality of functional modules for operating the electronic device EA.

[0093] The first electronic module EM1 can be directly mounted to a mother board electrically connected to the display module 200, or directly mounted to a separate substrate, and then electrically connected to the mother board through a connector (not shown) or the like.

[0094] The first electronic module EM1 can include a control module CM, a wireless communication module TM, an image input module IIM, a sound input module AIM, a memory MM, and an external interface IF. Some of the above modules can be electrically connected to the mother board through a flexible circuit board, rather than being mounted to the mother board.

[0095] The control module CM controls the overall operation of the electronic device EA. The control module CM can be a microprocessor. For example, the control module CM can activate or deactivate the display module 200. The control module CM can control other modules such as the image input module IIM or the sound input module AIM based on a touch signal received from the display module 200.

[0096] The wireless communication module TM can transceive wireless signals with another terminal by using a Bluetooth or WiFi link. The wireless communication module TM can transceive voice signals using a general communication line. The wireless communication module TM can include a transmission part TM1 that modulates a signal to be transmitted and transmits the modulated signal, and a reception part TM2 that demodulates a received signal.

[0097] The image input module IIM processes an image signal to convert the image signal into image data that can be displayed on the display module 200. The sound input module AIM receives an external sound signal through a microphone in a recording mode or a voice recognition mode to convert the received sound signal into electric voice data.

[0098] The external interface IF serves as an interface that is connected to an external charger, a wired / wireless data port, a card slot (e.g., a memory card and a SIM / UIM card), etc.

[0099] The second electronic module EM2 can include a sound output module AOM, a light emission module LM, a light reception module LRM, and a camera module CMM. The above-mentioned components can be directly mounted to the mother board, mounted to a separate substrate and electrically connected to the display module 200 through a connector (not shown) or the like, or electrically connected to the first electronic module EM1.

[0100] The sound output module AOM converts sound data received from the wireless communication module TM or sound data stored in the memory MM, and outputs the converted sound data to the outside.

[0101] The light emission module LM generates light and outputs the light. The light emission module LM can output infrared light rays. The light emission module LM can include an LED element. The light reception module LRM can detect infrared light rays. The light reception module LRM can be activated when infrared light rays higher than a predetermined level are detected. The light reception module LRM can include a CMOS sensor. Infrared light rays generated from the light emission module LM can be output and then reflected by an external object (e.g., a user's finger or face), and the reflected infrared light rays can be incident into the light reception module LRM. The camera module CMM can take an external image.

[0102] In an embodiment, the electronic module 500 can include at least one of components of the first electronic module EM1 and the second electronic module EM2. For example, the electronic module 500 can include at least one of the sound output module AOM, the light emitting module LM, the light receiving module LRM, the camera module CMM, and the heat detection module. In more detail, the electronic module 500 can detect an external object received through the module area MA, or provide an external with a sound signal such as a voice or light such as infrared light rays through the module area MA. Furthermore, the electronic module 500 can include a plurality of modules. However, embodiments of the inventive concept are not limited thereto.

[0103] Figure 4A and Figure 4B is a cross-sectional view showing a portion of the display module 200 according to an exemplary embodiment of the inventive concept. Figure 4A and Figure 4B shows a cross-section taken along the line I-I' of Figure 2 .

[0104] Figure 4A is a cross-sectional view of a rigid type display module 200 according to an exemplary embodiment of the inventive concept, and Figure 4B is a cross-sectional view of a flexible type display module 200 according to an exemplary embodiment of the inventive concept. In the case of the flexible type display module 200, the thin film encapsulation layer TFE will be described separately, and the remaining components will be described in conjunction with the rigid type display module 200.

[0105] In Figure 4A , the rigid type display panel 210 includes a base layer BL, a circuit element layer DP-CL disposed on the base layer BL, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and an encapsulation substrate EC.

[0106] The base layer BL can include a glass substrate. Further, the base layer BL can include a substrate having a substantially constant refractive index in a visible light range. The circuit element layer DP-CL includes at least one insulating layer and a circuit element. The circuit element layer DP-CL includes at least a transistor. Hereinafter, the insulating layer of the circuit element layer DP-CL includes at least one inorganic layer and / or at least one organic layer. The circuit element includes a signal line and a driving circuit of a pixel. The display element layer DP-OLED includes at least a light emitting element. The display element layer DP-OLED can include an organic light emitting diode as the light emitting element. The display element layer DP-OLED includes a pixel defining layer, for example, an organic material. The encapsulation substrate EC can be a transparent substrate. The encapsulation substrate EC can include a glass substrate. Further, the encapsulation substrate EC can include a substrate having a substantially constant refractive index in a visible light range. The stack structure from the base layer BL to the display element layer DP-OLED can be defined as a lower display substrate. A gap GP can be defined between the display element layer DP-OLED and the encapsulation substrate EC. The gap GP can be filled with air or an inert gas (hereinafter, referred to as an external gas).

[0107] In Figure 4B The flexible type display panel 210 includes a base layer BL, a circuit element layer DP-CL disposed on the base layer BL, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE.

[0108] The thin film encapsulation layer TFE seals the display element layer DP-OLED. The thin film encapsulation layer TFE includes at least one insulating layer. The thin film encapsulation layer TFE according to the embodiment of the present inventive concept can include at least one inorganic layer (hereinafter, referred to as an encapsulation inorganic layer). Alternatively, the thin film encapsulation layer TFE according to the embodiment of the present inventive concept can include at least one organic layer (hereinafter, referred to as an encapsulation organic layer) and at least one encapsulation inorganic layer. The encapsulation inorganic layer protects the display element layer DP-OLED from moisture / oxygen, and the encapsulation organic layer protects the display element layer DP-OLED from foreign substances such as dust particles. Although the encapsulation inorganic layer can include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, the embodiment of the present inventive concept is not limited thereto. Although the encapsulation organic layer can include an acrylic-based organic layer, the embodiment of the present inventive concept is not limited thereto.

[0109] The display panel 210 can include a central area CA corresponding to the module hole MH. Unlike the closed central area CA of the rigid type display panel 210, the flexible type display panel 210 has an open central area CA.

[0110] The input sensor 220 can be disposed on the display panel 210. For example, the input sensor 220 can be directly disposed on the display panel 210 and coupled with the display panel 210 through an adhesive member. The display panel 210 can be disposed and then the input sensor 220 can be disposed on the display panel 210 through a continuous process.

[0111] At least one of the display panel 210 and the input sensor 220 includes a first area corresponding to a signal transmission area STA (see Figure 5A ) and a second area disposed adjacent to the first area. Here, the first area has a greater light transmittance than the second area. The first area corresponds to a central area CA. The second area corresponds to an active area AA corresponding to a transmissive area TA.

[0112] Figure 5A is a plan view showing a window member according to an exemplary embodiment of the present inventive concept. Figure 5B is a cross-sectional view taken along line II-II' of Figure 5A . Figure 5C is a partial plan view showing a window member according to an exemplary embodiment of the present inventive concept. Figure 5D is an enlarged plan view showing a second shading pattern of Figure 5C . Figure 5E is a plan view showing another embodiment of a second shading pattern of Figure 5C .

[0113] Referring to Figure 5A and Figure 5B , the window member 100 includes a base substrate WM and a shading layer BML. Although the base substrate WM can be a transparent substrate such as a glass substrate in an embodiment, embodiments of the present inventive concept are not limited thereto. For example, the base substrate WM can include plastic. The base substrate WM can include a first area and a second area. A display surface FS can correspond to a front surface of the electronic device EA and include a transmissive area TA corresponding to a front surface of the window member 100 and a bezel area BZA.

[0114] In Figure 5A , in an embodiment, the first area can correspond to the bezel area BZA and the second area can correspond to the transmissive area TA. The transmissive area TA can include a first sub-area TA1 and a second sub-area TA2. The second sub-area TA2 corresponds to the first module area MA-100 in Figure 2 . The first sub-area TA1 can be an area in which no shading pattern (first shading pattern and second shading pattern) is disposed and through which light is transmitted, and the second sub-area TA2 can include a signal transmission area STA and a shading pattern area BMA which is a surrounding area adjacent to the signal transmission area STA.

[0115] In Figure 5B In the embodiment, the black matrix layer BML can include a first black matrix pattern BM1 and a second black matrix pattern BM2. In more detail, the first black matrix pattern BM1 can be disposed in the bezel area BZA of the base substrate WM, and the second black matrix pattern BM2 can be spaced apart from the first black matrix pattern BM1 and disposed in the black matrix area BMA of the transmission area TA.

[0116] In an embodiment, preferably, the second black matrix pattern BM2 can be directly disposed on one surface of the base substrate WM. The second black matrix pattern BM2 can be directly disposed on the base substrate WM through a deposition, printing, or coating process. In another embodiment, a film in which the second black matrix pattern BM2 is printed can be coupled to one surface of the base substrate WM through an adhesive layer. The second black matrix pattern BM2 can provide a signal transmission area STA at an inner side thereof, and the signal transmission area STA can have a greater light transmittance than the transmission area TA. The signal transmission area STA can correspond to or be greater than a central area CA of the display panel 210 of the display module 200.

[0117] In an embodiment, the second black matrix pattern BM2 can have a multi-layer structure. In more detail, the second black matrix pattern BM2 can include a first layer P1 disposed on the base substrate WM and a second layer P2 disposed on the first layer P1. One of the first layer P1 and the second layer P2 can have a black color, and the other can have a color. For example, the first layer P1 in contact with the base substrate WM can have a black color, and the second layer P2 can have a color. However, embodiments of the inventive concept are not limited to the multi-layer structure of the second black matrix pattern BM2 including the first layer P1 and the second layer P2. For example, the second black matrix pattern BM2 can correspond to a layer stack structure including three or more layers.

[0118] In an embodiment, side surfaces of the first layer P1 and the second layer P2 can be aligned in a cross-section. The first black matrix pattern BM1 and the second black matrix pattern BM2 can have the same layer stack structure including multiple layers. Here, unlike the layer stack structure of the second black matrix pattern BM2, the first black matrix pattern BM1 can have a layer stack structure in which side surfaces of layers are not aligned and there are stepped portions between the layers.

[0119] Referring to Figure 5CThe second sub-area TA2 can include a signal transmission area STA and a black matrix area BMA. A second black matrix BM2 can be disposed in the black matrix area BMA, and a signal transmission area STA can be defined at the inner side of the second black matrix BM2. The second black matrix BM2 can include an edge EZ on a plane. The edge EZ can include an outer edge EZ2 and an inner edge EZ1 defining the signal transmission area STA. The inner edge EZ1 can provide a closed line. That is, the second black matrix BM2 can be implemented to have a circular ring shape surrounding the signal transmission area STA by the inner edge EZ1 and the outer edge EZ2.

[0120] Figure 5D is an enlarged plan view illustrating a partial area 50 of the second black matrix BM2 of Figure 5C Referring to Figure 5D At least one of the inner edge EZ1 and the outer edge EZ2 can include a plurality of curved portions. For example, both the inner edge EZ1 and the outer edge EZ2 can include a plurality of curved portions. The plurality of curved portions can include curved lines concave toward the inner side of the second black matrix BM2. However, embodiments of the present inventive concept are not limited thereto. For example, according to various embodiments, the plurality of curved portions can be implemented to have a coiled shape.

[0121] In embodiments, a distance D1 between the outer edge EZ2 and the inner edge EZ1 can be about 0.05 mm to about 1.50 mm. The distance D1 between the outer edge EZ2 and the inner edge EZ1 can determine the width of the second black matrix BM2. The width of the second black matrix BM2 can determine the size of each of the signal transmission area STA and the transmission area TA. In exemplary embodiments of the present inventive concept, the window member 100 can reduce the width of the second black matrix BM2 and increase the size of each of the signal transmission area STA and the transmission area TA. According to exemplary embodiments of the present inventive concept, as the width of the second black matrix BM2 is reduced, the occurrence of a dimensional tolerance can be limited, and a dead space having a reduced size can be provided around the signal transmission area STA. In embodiments, a pitch D2 of the plurality of curved portions can be variably determined according to the kind of a laser beam used in a manufacturing method. For example, the size of the pitch D2 can be about 5 µm to about 50 µm.

[0122] Referring to Figure 5E It is possible for only the outer edge EZ2 to include the plurality of curved portions, and for the inner edge EZ1 not to include the plurality of curved portions. In this case, the size of the signal transmission area STA can not be changed, and the width of the second black matrix BM2 can be reduced. Further, it is possible for only the inner edge EZ1 to include the plurality of curved portions, and for the outer edge EZ2 not to include the plurality of curved portions. In this case, as the width of the second black matrix BM2 is reduced, the size of the signal transmission area STA can be increased.

[0123] Figure 6A is a partial plan view showing a window member according to an example embodiment of the present inventive concept. Figure 6B is an enlarged plan view showing a partial region 60 of the second light-shielding pattern BM2 in Figure 6A .

[0124] In an embodiment, the signal transmission area STA can be provided as a plurality. In Figure 6A , the second light-shielding pattern BM2 including a first signal transmission area STA1 and a second signal transmission area STA2 is exemplarily shown. Although the first signal transmission area STA1 and the second signal transmission area STA2 are shown as having the same size and shape in Figure 6A , in other embodiments, the first signal transmission area STA1 and the second signal transmission area STA2 can have different sizes and shapes from each other. For example, the first signal transmission area STA1 can have a size smaller than that of the second signal transmission area STA2, and have a rectangular shape or an elliptical shape. At least one of the outer edge EZ2 and the plurality of inner edges EZ1 can include a plurality of curved portions. Although all of the inner edges EZ1 and the outer edge EZ2 include the plurality of curved portions in Figure 6B , embodiments of the present inventive concept are not limited thereto. For example, only one of the inner edges EZ1 or the outer edge EZ2 can include the plurality of curved portions.

[0125] Figure 7A is a flowchart representing a method for manufacturing a window member according to an example embodiment of the present inventive concept. Figure 7B is a flowchart representing Figure 7A a process of forming a light-shielding layer. Figure 8A is a plan view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept. Figure 8B is a cross-sectional view of the window member taken along line III-III' of Figure 8A . Figure 8C is a plan view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept. Figure 8D is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept. Figure 8E is a cross-sectional view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept. Figure 8F is a plan view showing one process of a method for manufacturing a window member according to an example embodiment of the present inventive concept.

[0126] As Figure 7A and Figure 7BAs shown in FIG. 10, the method for manufacturing a window member according to the exemplary embodiment of the present inventive concept includes a process S710 of providing a base substrate and a process S720 of forming a light-shielding layer on the base substrate. The process S720 of forming the light-shielding layer BML includes a process S722 of forming a preliminary light-shielding pattern PBM, a process S724 of performing preliminary drying on the preliminary light-shielding pattern PBM, a process S726 of irradiating the dried preliminary light-shielding pattern PBM with a laser beam LSR, and a process S728 of performing secondary drying on the preliminary light-shielding pattern PBM irradiated with the laser beam LSR.

[0127] Although the process S724 of preliminary drying and the process S728 of secondary drying are described as separate processes of drying using a heat source in the embodiment, embodiments of the present inventive concept are not limited thereto. For example, the drying processes can be omitted in embodiments of the present inventive concept. For example, the preliminary light-shielding pattern PBM and the light-shielding pattern irradiated with the laser beam LSR can be dried by a method of natural drying.

[0128] The partial area PA of the preliminary light-shielding pattern PBM can be removed by performing the process of irradiating the laser beam LSR described above. The area irradiated with the laser beam LSR corresponds to the area to be removed.

[0129] Reference will be made to Figure 8A and Figure 8B The process S722 of forming the preliminary light-shielding pattern PBM and the process S724 of preliminary drying will be described in detail. The preliminary light-shielding pattern PBM includes a first layer P1 and a second layer P2 having a stepped portion. The process S722 of forming the preliminary light-shielding pattern PBM includes a process of forming the preliminary light-shielding pattern PBM on one surface of the base substrate WM and a process of patterning the preliminary light-shielding pattern PBM. In Figure 8A and Figure 8B In the above-described embodiment, the one surface of the base substrate WM is a bottom surface of the base substrate WM.

[0130] More specifically, the first layer P1 is formed by forming the preliminary light-shielding pattern PBM on the entire one surface of the base substrate WM and then performing the preliminary patterning. Thereafter, the second layer P2 is formed by forming the preliminary light-shielding pattern PBM on the entire one surface of the base substrate WM and then performing the secondary patterning. Since the secondary patterning is performed, the first layer P1 and the second layer P2 have the stepped portion.

[0131] The preliminary light-shielding pattern PBM defines a preliminary light-shielding pattern area BMA-P and provides a preliminary signal transmission area STA-P inside thereof.

[0132] The preliminary light-blocking pattern PBM is formed, and then preliminary drying is performed on the preliminary light-blocking pattern PBM in operation S724. For example, the preliminary light-blocking pattern PBM can be dried by a drying method using hot air or an infrared (IR) drying method.

[0133] Although the first light-blocking pattern BM1 of the light-blocking layer BML is formed by the same method as the preliminary light-blocking pattern PBM in the present embodiment, embodiments of the inventive concept are not limited thereto.

[0134] The process S726 of irradiating the laser beam LSR will be described in detail with reference to Figure 8C and Figure 8D The process S726 of irradiating the laser beam LSR will be described in detail with reference to

[0135] The second light-blocking pattern BM2 can be formed by removing the partial area PA of the preliminary light-blocking pattern PBM with the laser beam LSR. Here, the partial area PA can correspond to at least one of the inner edge area IPA and the outer edge area OPA of the preliminary light-blocking pattern PBM. Although all of both sides are removed in the present embodiment, embodiments of the inventive concept are not limited thereto.

[0136] The light-blocking pattern area BMA of the second light-blocking pattern BM2 can be formed by removing the partial area PA from the preliminary light-blocking pattern PBM, and thus has a smaller size than the preliminary light-blocking pattern area BMA-P of the preliminary light-blocking pattern PBM. Accordingly, in embodiments of the inventive concept, the size (or width) of the light-blocking pattern area BMA of the second light-blocking pattern BM2 surrounding the signal transmission area STA can be reduced. In embodiments of the inventive concept, the method for irradiating the laser beam LSR can reduce a dimensional tolerance generated when reducing the size of the light-blocking pattern area BMA. Further, in embodiments of the inventive concept, since the dimensional tolerance is reduced, it is possible to limit the generation of an ineffective space around the signal transmission area STA.

[0137] In embodiments, the process S726 of irradiating the laser beam LSR can reduce the dimensional tolerance to a range of about 0.08 mm to about 0.04 mm. To make the size accurate, a laser beam LSR having a small spot size can be used, and for this, a wavelength of about 532 nm or about 355 nm can be used. For example, when a wavelength of about 532 nm is used, a spot size of about 20 μm to about 30 μm can be used, and when a wavelength of about 355 nm is used, a spot size of about 5 μm to about 15 μm can be used. When a wavelength of about 355 nm is used, the spot size and the depth of focus (DOF) can be reduced, and thus precision machining is facilitated.

[0138] As described above Figure 8EAs shown in the middle, in process S728, the primary shading pattern PBM irradiated with the laser beam LSR is subjected to secondary drying. Although the secondary drying process can use the same drying method as the primary drying method, embodiments of the inventive concept are not limited thereto.

[0139] In Figure 8E , the process of irradiating the partial area PA of the primary shading pattern PBM with the laser beam LSR can align the side surfaces of the first layer P1 and the second layer P2 in a cross-section by removing the inner edge area IPA and the outer edge area OPA of the primary shading pattern PBM. In addition, by removing the inner edge area IPA, the signal transmission area STA can have a larger area than the primary signal transmission area STA-P.

[0140] Referring to Figure 8F , an example of irradiating only one of the inner edge area IPA and the outer edge area OPA with the laser beam LSR is shown. Although Figure 8F embodiments of the inventive concept are not limited thereto. In addition to the above-described features, the manufacturing method can be the same as the method described in Figures 8A-8E .

[0141] Figure 9A is a partial plan view showing a primary shading pattern of a window member according to another exemplary embodiment of the inventive concept. Figure 9B is a cross-sectional view taken along line IV-IV' of Figure 9A . In Figure 9A and Figure 9B , the shape of the primary shading pattern PBM can be variously changed. For example, the primary shading pattern PBM having a rectangular shape or a circular shape can define only the primary shading pattern area BMA-P without providing the primary signal transmission area STA-P. The primary shading pattern PBM can have a variable size. However, considering defects, the primary shading pattern PBM can have a narrow size.

[0142] In Figure 9B , the signal transmission area STA, the inner edge EZ1, and the outer edge EZ2 can be defined by removing the partial area PA of the primary shading pattern PBM through irradiation by the laser beam LSR. The partial area PA includes the outer edge area OPA and the inner edge area IPA. The second shading pattern area RA corresponds to the second shading pattern BM2 formed by removing the partial area PA. The second shading pattern area RA can be variably determined depending on the irradiation method of the laser beam LSR of the user.

[0143] Figures 8A-9BExemplary embodiments are described in which the laser beam LSR irradiates the partial area PA of the preliminary light-blocking pattern PBM from the bottom surface of the base substrate WM (i.e., from below the bottom surface). However, the irradiation direction of the laser beam LSR can be varied.

[0144] Referring to Figure 10 In exemplary embodiments of the inventive concept, the laser beam LSR can be irradiated to the partial area PA of the preliminary light-blocking pattern PBM from the top surface of the base substrate WM (i.e., from above the top surface). For example, when the laser beam LSR has a wavelength range of from about 350 nm to about 1500 nm, the laser beam LSR can be transmitted through the base substrate WM, which is a glass substrate. That is, the inner edge area IPA and the outer edge area OPA of the preliminary light-blocking pattern PBM can be removed by irradiating the laser beam LSR from above the top surface of the base substrate WM.

[0145] The window member according to exemplary embodiments of the inventive concept, the electronic device including the window member, and the method of manufacturing the window member can form a light-blocking layer corresponding to a light-blocking pattern area around a signal transmission area disposed in a transmissive area of the window member, and reduce an area of the light-blocking pattern area by removing a portion of the light-blocking pattern.

[0146] The window member according to exemplary embodiments of the inventive concept, the electronic device including the window member, and the method of manufacturing the window member can reduce an area of a light-blocking pattern area by forming patterning of a preliminary light-blocking pattern and removing a partial area by irradiating a laser beam.

[0147] While specific exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent to those of ordinary skill in the art from the description. Therefore, the inventive concept is not limited to such embodiments, but rather the scope of the inventive concept is to be accorded the broadest scope of the appended claims and the numerous equivalents modifications and variations as will be apparent to those of ordinary skill in the art.

Claims

1. A window member comprising: a base substrate; and a light-shielding layer including a first light-shielding pattern and a second light-shielding pattern, wherein the first light-shielding pattern is provided in a first region of the base substrate, the second light-shielding pattern is provided in a second region of the base substrate while being spaced apart from the first light-shielding pattern and providing a signal transmission region at an inner side of the second light-shielding pattern, wherein the second light-shielding pattern includes an edge having a plurality of curved portions on a plane; wherein the edge includes an outer edge and an inner edge configured to define the signal transmission region, and the inner edge is a closed line, wherein both the outer edge and the inner edge include the plurality of curved portions. The second light-shielding pattern has a multi-layer structure.

2. The window member of claim 1, wherein, The second light-shielding pattern includes a first layer provided on the base substrate and a second layer provided on the first layer, and a side surface of the first layer and a side surface of the second layer are aligned in a cross section.

3. The window member of claim 1, wherein, The signal transmission region is provided in a plurality.

4. The window member of claim 1, wherein, The base substrate is a glass substrate, and the second light-shielding pattern is directly provided on one surface of the glass substrate.

5. The window member of claim 1, wherein, The first light-shielding pattern and the second light-shielding pattern have the same layer structure.

6. The window member of claim 1, wherein, Each of the curved portions includes a curved line concaved toward an inside of the second light-shielding pattern on the plane.

7. The window member of claim 1, wherein, 8.A method for manufacturing a window member, the method comprising: providing a base substrate; and forming a light-shielding layer on one surface of the base substrate, the light-shielding layer including a first light-shielding pattern and a second light-shielding pattern, wherein the second light-shielding pattern is spaced apart from the first light-shielding pattern and is configured to define a signal transmission region at an inner side of the second light-shielding pattern, wherein forming the light-shielding layer includes: forming a preliminary light-shielding pattern corresponding to the second light-shielding pattern on the one surface of the base substrate, the preliminary light-shielding pattern defining a preliminary signal transmission region at an inner side of the preliminary light-shielding pattern; and irradiating a laser beam to a partial region of the preliminary light-shielding pattern to form an edge having a plurality of curved portions; when irradiating the laser beam, irradiating the laser beam to an outer edge region of the preliminary light-shielding pattern and an inner edge region of the preliminary light-shielding pattern, wherein the outer edge region is adjacent to an outer edge of the preliminary light-shielding pattern, and the inner edge region is adjacent to an inner edge of the preliminary light-shielding pattern configured to define the preliminary signal transmission region. Irradiating the laser beam includes: irradiating the inner edge region of the preliminary light-shielding pattern with the laser beam to form the signal transmission region.

9. The method of claim 8, wherein, Irradiating the laser beam includes irradiating the laser beam from above a top surface of the base substrate. The second light-shielding pattern has a multi-layer structure.

10. The method of claim 8, wherein, The second light-shielding pattern includes a first layer provided on the base substrate and a second layer provided on the first layer, and a side surface of the first layer and a side surface of the second layer are aligned in a cross section.

11. The method of claim 8, wherein, The signal transmission region is provided in a plurality.

12. The method of claim 8, wherein, The signal transmission region is aligned with an electronic module provided below the base substrate, and the electronic module includes a camera module, an infrared sensor, or a light sensor.

13. The method of claim 8, wherein, ​ 14. The method of claim 8, wherein, ​

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