Patent Publication Number: US-2017372123-A1

Title: Fingerprint sensor module assembly integrated with cover window for electronic device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is the National Stage Entry of International Patent Application No. PCT/KR2015/013626, filed on Dec. 11, 2015, and claims priority from and the benefit of Korean Patent Application No. 10-2014-0178274, filed on Dec. 11, 2014, and Korean Patent Application No. 10-2015-0177271, filed on Dec. 11, 2015, each of which is incorporated by reference for all purposes as if fully set forth herein. 
    
    
     BACKGROUND 
     Field 
     Exemplary embodiments of the present invention relates to a fingerprint sensor module assembly integrated with a cover window for an electronic device, and more particularly, to a fingerprint sensor module assembly integrated with a cover window for an electronic device which has a simple appearance such that an aesthetic sense of a design and waterproofing thereof can be improved. 
     Discussion of the Background 
     Recently, with an increase of public interest in portable electronic devices such as smartphones or tablet PCs, research and development in the related technology fields is actively progressing. 
     In many cases, a portable electronic device has an embedded touch screen integrated with a display, which is a display device, as one of input devices for receiving specific commands from a user. In addition, the portable electronic device may include various function keys or soft keys as input devices other than the touch screen. 
     Such function keys or soft keys can operate as home keys. For example, the function keys or soft keys can operate as back keys which exit a running application to return to an initial screen or to return a user interface to a previous level, or operate as menu keys which call frequently used menus. The function keys or soft keys can be implemented by a method of sensing capacitance of a conductor, a method of sensing an electromagnetic wave of an electromagnetic pen, or a hybrid method in which both of these methods are implemented, and can also be implemented as physical buttons. 
     Recently, as the use of portable electronic devices has rapidly expanded to services requiring security, biometric sensors which are capable of measuring biometric information for high security have been increasingly installed in the portable electronic devices. 
     The biometric information includes fingerprints, blood vessels of the back of a hand, voices, irises, and the like. Fingerprint sensors can be widely used as the biometric sensors. 
     The fingerprint sensor is a sensor for sensing a fingerprint of a human being. By performing a user registration or authentication procedure through the fingerprint sensor, data stored in the portable electronic devices can be protected and security incidents may be prevented. 
     Since the fingerprint sensor can be manufactured in the form of a module including peripheral parts or structures and can be implemented to be integrated into a physical function key, the fingerprint sensor can be effectively mounted on various electronic devices. 
     Recently, utilization of the fingerprint sensor has being gradually increased. For example, a navigation function for performing manipulation of a pointer such as a cursor is integrated with the fingerprint sensor and this type of fingerprint sensor is referred to as a biometric track pad (BTP). 
     Types of fingerprint sensors include a capacitive type, an optical type, an ultrasonic type, a thermal sensing type, and a non-contact type. Capacitive fingerprint sensors having excellent sensitivity have been widely used recently since they are robust against external environment change and are excellent in compatibility with portable electronic devices. 
       FIG. 1  is a view illustrating an exemplary electronic device on which a conventional fingerprint sensor module is mounted, and  FIG. 2  is a cross-sectional view taken along line A-A of  FIG. 1 . 
     As illustrated in  FIGS. 1 and 2 , a button hole  21  is disposed to pass through a cover window  20  of a conventional electronic device  10 , and a fingerprint sensor module  30  is installed in the button hole  21 . 
     The fingerprint sensor module  30  includes a fingerprint sensor  32  having a sensing unit  31  and a substrate  33  on which the fingerprint sensor  32  is mounted. A layer  34  including a color layer, a protective layer, and the like, is disposed on an upper surface of the fingerprint sensor  32 . Generally, the fingerprint sensor module  30  coupled to the button hole  21  is mounted so that an upper surface  35  of the layer  34  has a height similar to an upper surface  22  of the cover window  20 . 
     Since each manufacturer manufactures electronic devices having various thicknesses, fingerprint sensor modules having various heights suitable for such electronic devices are required. To this end, a method of adjusting a height of the fingerprint sensor  32  or a method of adjusting a thickness of the substrate  33  has been used. However, in order to increase the height of the fingerprint sensor  32  or the thickness of the substrate  33 , there is a burden of a cost increase and difficulties in management due to the presence of substrates having various thicknesses. 
     Further, since the button hole  21  is disposed to pass through the cover window  20  so that the fingerprint sensor module  30  is mounted thereon, external moisture or moisture in the air may penetrate into a gap between the button hole  21  and the fingerprint sensor module  30 . The penetration of external moisture or moisture in the air may cause a short circuit of an electrical path in the fingerprint sensor module  30  and cause the fingerprint sensor  32  to malfunction or break. Conventionally, a sealing agent  40  for preventing the penetration of external moisture or moisture in the air has been additionally provided, which leads to an increase in production costs and an additional process. 
     These problems may be commonly seen in fingerprint sensor modules disposed through various packaging methods such as a chip on board (COB) method, a quad flat package (QFP) method, a ball grid array (BGA) method, a wafer level package (WLP) method, and the like. 
     SUMMARY 
     Exemplary embodiments of the present invention provide a fingerprint sensor module assembly integrated with a cover window for an electronic device with a simple appearance such that an aesthetic sense of a design and waterproofing thereof can be improved. 
     One aspect of the present invention provides a fingerprint sensor module assembly integrated with a cover window for an electronic device including the cover window disposed on a front surface of an electronic device, configured to display an image generated from a display module on the cover window, and having a seating part disposed on a lower surface of the cover window and facing an inside of the electronic device; a fingerprint sensor module including a fingerprint sensor having a sensing unit for sensing fingerprints and a substrate electrically connected to the fingerprint sensor, and located in the seating part; and an adhesion part disposed between the seating part and the fingerprint sensor module and configured to fix the fingerprint sensor module to the seating part. 
     The seating part may be disposed on the lower surface of the cover window. 
     The seating part may be formed in a groove shape to correspond to a shape of the fingerprint sensor and the fingerprint sensor may be mounted on and fixed to the seating part. 
     The seating part may be formed by an etching or cutting process. 
     The sensing unit and at least a part of the fingerprint sensor may be disposed in the seating part. 
     At least a part of the substrate may be additionally disposed in the seating part. 
     A thickness of the cover window between an upper surface of the cover window and an upper surface of the sensing unit may range from 200 μm to 300 μm. 
     The cover window may have a display area on which an image is displayed and a bezel area in which a print layer is disposed and an image is not displayed, and the seating part may be disposed in the bezel area. 
     An engraved or embossed pattern may be additionally disposed in an area corresponding to an upper side of the fingerprint sensor in the upper surface of the cover window which is exposed to a user. 
     An open area having a predetermined width may be disposed along an edge of the seating part on the lower surface of the cover window. A light-emitting unit configured to emit light toward the upper surface of the cover window through the open area, may be disposed under the cover window. 
     At least one light-emitting unit may be disposed on the substrate or a main substrate electrically connected to the fingerprint sensor module. 
     The cover window may have a display area on which an image is displayed and a bezel area in which a print layer is disposed and an image is not displayed, and the seating part may be disposed in the display area. 
     The cover window may be made from a material selected from glass, sapphire, zirconium and a transparent resin. 
     The cover window may further include a non-display part disposed independently of the cover window and the seating part may be disposed in the non-display part. 
     The non-display part may be made from a resin or a metal material. 
     The cover window may include a first cover window of which an upper surface is exposed to a user; an adhesive layer disposed on a lower surface of the first cover window; and a second cover window of which an upper surface is adhered to the lower surface of the first cover window by the adhesive layer, wherein the seating part may be disposed to pass through the second cover window. 
     A thickness of the second cover window may correspond to a height of the fingerprint sensor. 
     A color layer may be disposed on a surface of the seating part and the adhesion part may be disposed on the color layer. 
     According to one exemplary embodiment, since a fingerprint sensor is coupled to a seating part disposed on a lower surface of a cover window, a continuous surface can be disposed when viewed from an upper surface of the cover window so as to have a simple appearance and improve an aesthetic sense of a design thereof. 
     Further, according to one exemplary embodiment, since a cover window has a continuous surface without having the same button hole as that of a conventional cover window, the penetration of external moisture or moisture in the air can be structurally blocked and thus waterproofing can be improved. 
     Effects of exemplary embodiments are not limited to the above-described effects and all effects that can be inferred from the detailed description of the invention or composition of the invention described in the claims may be understood as being included therein. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a view illustrating an exemplary electronic device on which a conventional fingerprint sensor module is mounted. 
         FIG. 2  is a cross-sectional view taken along line A-A of  FIG. 1 . 
         FIG. 3  is a view illustrating an exemplary electronic device having a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a first exemplary embodiment. 
         FIG. 4  is a plan view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIG. 5  is a bottom view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIG. 6  is an exploded perspective view of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIG. 7  is a cross-sectional view taken along line B-B of  FIG. 4 . 
         FIGS. 8A, 8B, 8C and 8D  illustrate cross-sectional views of examples of a coupling of a fingerprint sensor module and a seating part in the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIGS. 9 and 10  are cross-sectional views illustrating installation examples of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIG. 11  is a plan view illustrating an example of an enlarged part of an electronic device having the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment o. 
         FIGS. 12A and 12B  illustrate cross-sectional views of installation examples of a light-emitting unit taken along line C-C of  FIG. 11 . 
         FIGS. 13A, 13B, 14A, 14B, 15A and 15B  are views illustrating examples of a formation of a surface of the cover window corresponding to an upper side of a fingerprint sensor in the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
         FIG. 16  is a cross-sectional view illustrating an installation example of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a second exemplary embodiment o and an electronic device. 
         FIG. 17  is a plan view illustrating an exemplary cover window of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a third exemplary embodiment. 
         FIG. 18  is a plan view illustrating an exemplary cover window of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a fourth exemplary embodiment. 
         FIG. 19  is a perspective view illustrating a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a fifth exemplary embodiment. 
         FIG. 20  is a perspective view illustrating a fingerprint sensor module of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the fifth exemplary embodiment of the present invention. 
         FIG. 21  is a cross-sectional view taken along line G-G of  FIG. 19 . 
         FIG. 22  is an exploded perspective view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the fifth exemplary embodiment. 
     
    
    
     DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS 
     In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various exemplary embodiments. It is apparent, however, that various exemplary embodiments may 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 various exemplary embodiments. 
     In the accompanying figures, the size and relative sizes of layers, films, panels, regions, etc., may be exaggerated for clarity and descriptive purposes. Also, like reference numerals denote like elements. 
     When an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it may be directly on, connected to, or coupled to the other element or layer or intervening elements or layers may be present. When, however, an element or layer is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element or layer, there are no intervening elements or layers present. For the purposes of this disclosure, “at least one of X, Y, and Z” and “at least one selected from the group consisting of X, Y, and Z” may be construed as X only, Y only, Z only, or any combination of two or more of X, Y, and Z, such as, for instance, XYZ, XYY, YZ, and ZZ. Like numbers refer to like elements throughout. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. 
     Although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers, and/or sections, these elements, components, regions, layers, and/or sections should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and/or section from another element, component, region, layer, and/or section. Thus, a first element, component, region, layer, and/or section discussed below could be termed a second element, component, region, layer, and/or section without departing from the teachings of the present disclosure. 
     Spatially relative terms, such as “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for descriptive purposes, and, thereby, to describe one element or feature&#39;s relationship to another element(s) or feature(s) as illustrated in the drawings. Spatially relative terms are intended to encompass different orientations of an apparatus in use, operation, and/or manufacture in addition to the orientation depicted in the drawings. For example, if the apparatus in the drawings 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. Furthermore, the apparatus may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and, as such, the spatially relative descriptors used herein interpreted accordingly. 
     The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. It should be understood that when an element is referred to as being “connected” or “coupled” to another element, the element can be directly connected or coupled to the other element or intervening elements may be present. 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. Moreover, the terms “comprises,” “comprising,” “includes,” and/or “including,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. However, exemplary embodiments of the present invention may be implemented in several different forms, and are not limited to exemplary embodiments described herein. In addition, parts irrelevant to description are omitted in the drawings in order to clearly explain the present invention. Similar parts are denoted by similar reference numerals throughout this specification. 
     Throughout this specification, when a part is referred to as being “connected” to another part, the part may be “directly connected” or “indirectly connected” via an intervening part. Also, when a certain part “includes” a certain component, other components are not excluded from being included unless described otherwise stated, and other components may in fact be included. 
     Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
       FIG. 3  is a view illustrating an exemplary electronic device having a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a first exemplary embodiment,  FIG. 4  is a plan view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment,  FIG. 5  is a bottom view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment,  FIG. 6  is an exploded perspective view of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment, and  FIG. 7  is a cross-sectional view taken along line B-B of  FIG. 4 . 
     As illustrated in  FIGS. 3, 4, 5, 6, and 7 , a fingerprint sensor module assembly  100  is integrated with a cover window for an electronic device according to the first exemplary embodiment. As illustrated in  FIG. 7 , the fingerprint sensor module assembly  100  may include a cover window  110 , a fingerprint sensor module  140 , and an adhesion part  170 . 
     As illustrated in  FIG. 9 , the cover window  110  is disposed on a front surface of an electronic device  200  and configured such that an image generated from a display module  210  is transmitted and displayed thereon. 
     The cover window  110  may be made from a material selected from glass, sapphire, zirconium, and a transparent resin. When the cover window  110  is made from glass, various glass substrates such as a soda-lime glass substrate, an alkali-free glass substrate, a tempered glass substrate, and the like may be applied. The transparent resin may be an acrylic material or the like. 
     As illustrated in  FIGS. 3, 4, 5 and 6 , the cover window  110  may have a display area  111  on which an image is displayed and a bezel area  112  on which no image is displayed. 
     The bezel area  112  may be disposed by providing a print layer  113 . When the cover window  110  is mounted on the electronic device  200 , the print layer  113  may be disposed on a lower surface  114  of the cover window  110  facing an inside of the electronic device  200  or on an edge area of the cover window  110 . 
     The fingerprint sensor module  140  may include a fingerprint sensor  141  and a substrate  145 . 
     The fingerprint sensor  141  according to the exemplary embodiment may include various types. For example, a capacitive type, an optical type, an ultrasonic type, a thermal detection type, or a non-contact type of fingerprint sensor may be applied to the fingerprint sensor  141 . Hereinafter, the fingerprint sensor  141  will be described as a capacitive type fingerprint sensor for convenience of description. 
     The fingerprint sensor  141  may have a sensing unit  142  which senses a fingerprint. The sensing unit  142  may be formed in various forms. For example, the sensing unit  142  may be arranged in an array form and may include sensing pixels having a sensing area. Further, the sensing unit  142  may include a plurality of line-type driving electrodes and receiving electrodes. Further, the sensing unit  142  may be disposed in an area-type having a plurality of image receiving units. 
     The sensing unit  142  may find a difference in capacitance due to a height difference caused by shapes of a ridge and a valley of a fingerprint of a user&#39;s finger, and may scan an image of the fingerprint to generate a fingerprint image. The sensing unit  142  may scan the image of the fingerprint to generate the fingerprint image when the user&#39;s finger is touched thereto and when the user&#39;s finger moves in a state in which the user&#39;s finger is in contact therewith. 
     Further, the sensing unit  142  may have a fingerprint sensing function for sensing a fingerprint and a pointer manipulation function, and thus the fingerprint sensor  141  may be implemented as a biometric track pad (BTP). 
     In addition, the sensing unit  142  may have a function of tracking a position of the user&#39;s finger. That is, the sensing unit  142  may sense input information or static electricity according to the movement of the user&#39;s finger or whether the user&#39;s finger is approaching, and may have a pointer manipulation function for moving a pointer such as a cursor on the basis of the movement. 
     Further, the fingerprint sensor  141  may be electrically connected to the substrate  145 . The electrical connection between the fingerprint sensor  141  and the substrate  145  may be made by various methods, for example, by a surface mount technology (SMT) method or the like. 
     Further, the fingerprint sensor  141  may be disposed through various packaging methods such as a chip on board (COB) method, a quad flat package (QFP) method, a ball grid array (BGA) method, a wafer level package (WLP) method, a through-silicon via (TSV) method, and the like. 
     The substrate  145  may have a mounting part  146  on which the fingerprint sensor  141  is mounted and an extension part  147  which extends from the mounting part  146 . The substrate  145  may be a flexible printed circuit board (FPCB). As illustrated in  FIG. 9 , the extension part  147  may be connected to a connector  230  which is disposed on a main substrate  220  of the electronic device  200 . 
     The cover window  110  may have a seating part  115  which is disposed on the lower surface  114  facing the inside of the electronic device  200 . In the first exemplary embodiment, the seating part  115  may be disposed in the bezel area  112 . 
     Further, the seating part  115  may be disposed on a surface of the lower surface  114  of the cover window  110  or may be disposed in the cover window  110  to have a groove shape. 
     When the seating part  115  is disposed to have a groove shape, the seating part  115  may be disposed to correspond to a shape of the fingerprint sensor  141 . Hereinafter, the seating part  115  disposed to have a groove shape will be described for convenience of description. 
     When the seating part  115  is disposed to have a groove shape, the seating part  115  may be disposed by a method such as etching, cutting, or the like. Such a method may be appropriately selected according to a material of the cover window  110 . For example, when the cover window  110  is made from glass, the seating part  115  may be disposed by a method such as etching or computer numerical control (CNC) machining. As the etching method, either dry etching or wet etching may be performed or a method in which dry etching and wet etching are alternately performed may be used. Further, when the cover window  110  is made from a synthetic resin such as plastic or the like, the seating part  115  may be molded at a time at which the cover window is molded. 
     The fingerprint sensor module  140  may be coupled to the seating part  115 , and the adhesion part  170  may be disposed on the seating part  115  so that the fingerprint sensor module  140  is firmly coupled to the seating part  115 . 
     Here, a color layer  180  may be disposed on a surface of the seating part  115 . The color layer  180  may express a color toward an upper surface  116  of the cover window  110  along with the print layer  113  which is disposed in the bezel area  112  of the cover window  110 . 
     The color layer  180  may be disposed only on a bottom surface  117  of the seating part  115 , or may also be disposed on a side surface  118  of the seating part  115 . Further, the color layer  180  may have the same color as or a different color from the print layer  113 . 
     The adhesion part  170  may be disposed on the color layer  180 . That is, the color layer  180  is disposed on the seating part  115 , and then the adhesion part  170  may be disposed on the color layer  180 . 
     The adhesion part  170  may be formed in various forms such as a film form, a liquid form, a powder form, and the like. The adhesion part  170  may be appropriately selected according to a type of the fingerprint sensor. For example, the adhesion part  170  preferably has a high dielectric constant and adhesive strength and a low viscosity when the fingerprint sensor  141  is a capacitive type fingerprint sensor, and the adhesion part  170  is preferably non-conductive so as not to affect sound waves when the fingerprint sensor  141  is an ultrasonic type fingerprint sensor. 
     The adhesion part  170  may be disposed on both of the bottom surface  117  and the side surface  118  of the seating part  115  or may be disposed first on the bottom surface  117  of the seating part  115  to fix a position of the fingerprint sensor  141  and then be additionally disposed on the side surface  118  of the seating part  115 . That is, the adhesion part  170  may be disposed in a space between an outer surface of the fingerprint sensor  141  and the side surface  118  of the seating part  115 , to mold and fix the fingerprint sensor  141 , which is mounted on the seating part  115 . 
     The sensing unit  142  and at least a part of the fingerprint sensor  141  may be disposed in the seating part  115 . 
     A thickness D 1  of the cover window  110  between the upper surface  116  of the cover window  110  and an upper surface of the sensing unit  142  may range from 200 μm to 300 μm. The thickness D 1  is derived in consideration of strength of the cover window  110  and sensing sensitivity of the fingerprint sensor  141 . When the thickness D 1  is less than 200 μm, the cover window  110  may not provide sufficient strength, and when the thickness D 1  is more than 300 μm, the sensing sensitivity of the sensing unit  142  may be lowered. 
       FIGS. 8A, 8B, 8C and 8D  illustrate cross-sectional views of examples of a coupling of the fingerprint sensor module and the seating part in the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
     Referring to  FIG. 8A , the seating part  115  may be formed to correspond to a shape of the fingerprint sensor  141 , and the fingerprint sensor  141  may be mounted on and fixed to the seating part  115 . That is, both of the sensing unit  142  and the fingerprint sensor  141  may be mounted on the seating part  115 . The mounting part  146  and the extension part  147  of the substrate  145  may be disposed outside the seating part  115 . 
     Referring to  FIG. 8B , at least a part of the substrate  145  may be located in a seating part  115   a . Here, the part of the substrate  145  which is disposed in the seating part  115   a  may be the mounting part  146 . That is, both of the fingerprint sensor  141  including the sensing unit  142  and the mounting part  146  of the substrate  145  may be mounted in the seating part  115   a.    
     Referring to  FIG. 8C , a mounting part  146   b  of a substrate  145   b  may be formed to have a greater area than the fingerprint sensor  141 . Therefore, when the fingerprint sensor  141  is totally mounted in the seating part  115 , a part  149  of the mounting part  146   b  may extend to the outside of the fingerprint sensor  141 . In this case, a length L of the part  149  of the mounting part  146   b  which extends to the outside of the fingerprint sensor  141  is not particularly limited. 
     Further, referring to  FIG. 8D , the sensing unit  142  and an upper part of the fingerprint sensor  141  may be disposed in a seating part  115   c . That is, according to the exemplary embodiment, the sensing unit  142  and at least a part of the fingerprint sensor  141  may be disposed in the seating part  115   c.    
     As described above, according to the exemplary embodiment, since the fingerprint sensor  141  is coupled to the seating part  115  which is disposed on the lower surface  114  of the cover window  110 , the upper surface  116  of the cover window  110  may be continuously disposed so as to have a simple appearance and improve an aesthetic sense of a design. Further, according to the exemplary embodiment, since the cover window  110  does not have the same button hole as that of a conventional cover window and has a continuous surface, penetration of external moisture or moisture in the air may be structurally blocked, and thus waterproofing can be improved. 
       FIGS. 9 and 10  are cross-sectional views illustrating installation examples of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
     First, as illustrated in  FIG. 9 , the fingerprint sensor  141  may be mounted and fixed to the seating part  115  of the cover window  110 . The mounting part  146  of the substrate  145  may be disposed to be in close contact with the lower surface  114  of the cover window  110 . In this case, since the substrate  145  is disposed to have a sufficiently thin thickness, the display module  210  may be disposed to be close to or in close contact with a lower side of the fingerprint sensor module assembly  100  integrated with a cover window for an electronic device. The cover window  110  and the display module  210  may be attached to each other by an adhesive (not illustrated) or the like. 
     Here, the display module  210  may include a touch screen panel (not illustrated), and the main substrate  220  of the electronic device may be disposed below the display module  210 . The connector  230  may be disposed on the main substrate  220 . 
     In the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the exemplary embodiment, the extension part  147  of the substrate  145  may extend to the outside of the display module  210  and may be connected to the connector  230  of the main substrate  220  in a state in which the fingerprint sensor  141  is coupled to the seating part  115 . Such a connection method may be applied to all of a structure in which the touch screen panel is disposed inside the display module  210  and a structure in which the touch screen panel is disposed above the display module  210 . 
     As illustrated in  FIG. 10 , a part of the fingerprint sensor  141  may protrude outside a seating part  115   d , and in this case, a display module  210   d  may be disposed so as not to be disposed below the fingerprint sensor  141 . For example, the display module  210   d  may be disposed to have a shorter length than the display module  210  described in  FIG. 9  such that overlapping between the display module  210   d  and the fingerprint sensor  141  may not occur. 
       FIG. 11  is a plan view illustrating an example of an enlarged part of an electronic device having the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment.  FIGS. 12A and 12B  illustrate cross-sectional views of installation examples of a light-emitting unit taken along line C-C of  FIG. 11 . 
     As illustrated in  FIGS. 11, 12A and 12B , an open area  119  having a predetermined width may be disposed along an edge of the seating part  115  on the lower surface  114  of the cover window  110 . Here, he open area  119  may be a surface in which the print layer  113 , which is provided on the lower surface  114  of the cover window  110 , is not disposed along the edge of the seating part  115 . 
     Light-emitting units  250  may be disposed under the cover window  110 . 
     Referring to  FIG. 12A , one or more light-emitting units  250  may be disposed on the main substrate  220  of the electronic device  200 , and the light-emitting units  250  may be mounted on the main substrate  220  to be located around the fingerprint sensor  141 . The light-emitting units  250  may use a light-emitting diode (LED) as a light source and include a plurality of light sources such as a white LED, a red LED, a green LED, and the like in order to emit light of various colors. 
     The light-emitting units  250  may appropriately use a light source having directivity toward an upper surface thereof to emit light in an upward direction or a light source having directivity toward a side surface thereof to emit light in a lateral direction. 
     Light emitted from the light-emitting units  250  may be emitted toward the upper surface  116  of the cover window  110  through the open area  119 . The light emitted toward the upper surface  116  of the cover window  110  through the open area  119  may represent a shape of the open area  119 . This shape may serve as an indicator which indicates a position of the fingerprint sensor  141 . 
     That is, in the exemplary embodiment, since an upper side of the fingerprint sensor  141  is covered by the cover window  110 , it may be difficult for a user to recognize the position of the fingerprint sensor  141 . The light emitted through the open area  119  may inform the user of the position of the fingerprint sensor  141  and may effectively inform the user of the position of the fingerprint sensor  141  especially at night. 
     Although the open area  119  is illustrated as having a track shape in  FIG. 11 , the track shape is only exemplary. The open area  119  is not limited to the case in which the open area  119  is disposed along the edge of the seating part  115  and may be formed in various shapes. 
     Further, the light-emitting units  250  may emit light of various colors by a combination of light sources, and may emit light of different colors according to a function and allow the user to recognize a corresponding function, state, and the like by the color of the light. 
     In addition, the open area  119  may be used in combination with various patterns to be described below with reference to  FIGS. 13A, 13B, 14A, 14B, 15A and 15B . 
     Referring to  FIG. 12B , one or more light-emitting units  250  may be disposed on a substrate  145   e . The light-emitting units  250  may be disposed on a mounting part  146   e  of the substrate  145   e , and to this end, the mounting part  146   e  may extend to the outside of the fingerprint sensor  141 . 
     In addition, a vibrating unit (not illustrated) may also be disposed on at least one of the substrate  145   e  and the main substrate  220 , and may generate a specific vibration in conjunction with the light-emitting units  250  and allow the user to recognize a corresponding function, state, and the like. 
       FIGS. 13A, 13B, 14A, 14B, 15A and 15B  are views illustrating examples of a formation of a surface of the cover window corresponding to an upper side of a fingerprint sensor in the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the first exemplary embodiment. 
     As illustrated in  FIGS. 13A, 13B, 14A, 14B, 15A and 15B , an engraved or embossed pattern may further be disposed in an area corresponding to the upper side of the fingerprint sensor  141  disposed in the upper surface  116  of the cover window  110  which is exposed to the user. 
     First,  FIG. 13A  is a plan view illustrating the cover window, and  FIG. 13B  is a cross-sectional view taken along line D-D. Referring to  FIGS. 13A and 13B , an engraved pattern  120  may be disposed in the area corresponding to the upper side of the fingerprint sensor  141  in the upper surface  116  of the cover window  110 . The engraved pattern  120  may have a geometric shape or the like. 
     Further,  FIG. 14A  is a plan view illustrating the cover window and  FIG. 14B  is a cross-sectional view taken along line E-E. Referring to  FIGS. 14A and 14B , an engraved pattern  121  may be disposed to have a groove shape. 
       FIG. 15A  is a plan view illustrating the cover window and  FIG. 15B  is a cross-sectional view taken along line F-F. Referring to  FIGS. 15A and 15B , an embossed pattern  122  may be disposed in the area corresponding to the upper side of the fingerprint sensor  141  in the upper surface  116  of the cover window  110 . Here, the embossed pattern  122  may be disposed to avoid a fingerprint sensing area. Although a ring shape which protrudes along the edge of the fingerprint sensor  141  is illustrated as the embossed pattern  122  in  FIGS. 15A and 15B , the ring shape is only exemplary and the present invention is not limited thereto. 
     The embossed pattern  122  may be in a state in which the embossed pattern  122  does not normally protrude, and may be disposed to protrude in a specific state, for example, when the user&#39;s finger touches the fingerprint sensor  141 . The embossed pattern  122  may be implemented by a component which is separately disposed on the upper surface of the cover window  110  and the component may include a component having a polymeric material of which a shape may be deformed to form the embossed pattern  122 . 
       FIG. 16  is a cross-sectional view illustrating an installation example of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a second exemplary embodiment and an electronic device. In the second exemplary embodiment, a cover window may have a different configuration. Since the other components are the same as those of the first exemplary embodiment described above, descriptions thereof will be omitted. 
     As illustrated in  FIG. 16 , a cover window  310  may include a first cover window  320 , an adhesive layer  330 , and a second cover window  340 . 
     An upper surface  321  of the first cover window  320  may be a surface exposed to a user, and the adhesive layer  330  may be disposed on a lower surface of the first cover window  320 . 
     The adhesive layer  330  may be formed by coating or formed in a film form to be attached. For example, an optically clear resin (OCR) or an optically clear adhesive (OCA) may be used as the adhesive layer  330 . 
     The second cover window  340  may have an upper surface, which is attached to the adhesive layer  330  and adhered to the lower surface of the first cover window  320 , and the second cover window  340  and the first cover window  320  may be made from the same material. 
     A seating part  341  may be disposed in the second cover window  340 , and in this case, the seating part  341  may be disposed to pass through the second cover window  340 . 
     A color layer  350  may be disposed at a position corresponding to an upper part of the fingerprint sensor  141  in the lower surface of the first cover window  320 , and may also be disposed on a side surface of the seating part  341  of the second cover window  340 . 
     Further, an adhesion part  370  may also be disposed between the side surface of the seating part  341  of the second cover window  340  and a side surface of the fingerprint sensor  141 . 
     A thickness of the second cover window  340  may correspond to a thickness of the fingerprint sensor  141 . In this case, since the seating part  341  may be disposed to pass through the second cover window  340 , there is an advantage in that a process of matching a depth of the seating part  341  may be omitted. 
     An extension part  347  of a substrate  345 , on which the fingerprint sensor  141  coupled to the seating part  341  is mounted, may extend to the outside of the display module  210  and may be connected to the connector  230  of the main substrate  220 . Such a connection method may be applied to a structure in which a touch screen panel (not illustrated) may be disposed inside the display module  210  or a structure in which a touch screen panel (not illustrated) is disposed above the display module  210 . 
       FIG. 17  is a plan view illustrating an exemplary cover window of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a third exemplary embodiment. 
     As illustrated in  FIG. 17 , a cover window  510  according to the exemplary embodiment may further include a non-display part  550  disposed independently of the cover window  510 . Also, a seating part  551  may be disposed in the non-display part  550 . 
     In the present exemplary embodiment, the non-display part  550  may be made from a metal material or a synthetic resin such as plastic. 
     The seating part  551  may be disposed through machining after the non-display part  550  is disposed, or may be disposed at a time at which the non-display part  550  is molded. 
     In the exemplary embodiment, since the non-display part  550  may be disposed to be opaque due to characteristics of a material forming the non-display part  550 , the print layer  113  illustrated in  FIG. 7  in the first exemplary embodiment described above may be omitted. 
       FIG. 18  is a plan view illustrating an exemplary cover window of a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a fourth exemplary embodiment. 
     As illustrated in  FIG. 18 , a bezel area  611  of a cover window  610  according to the present exemplary embodiment may be disposed to have a smaller area than the bezel area  112  illustrated in  FIG. 4  of the first exemplary embodiment described above. That is, when the same sized cover window is used, a display area  612  of the cover window  610  according to the present exemplary embodiment may be formed to have a greater area than the display area  111  illustrated in  FIG. 4  of the first exemplary embodiment described above. 
     A seating part  651  may be disposed in the display area  612 . 
     In the present exemplary embodiment, since the seating part  651  is disposed in the display area  612 , a fingerprint sensor (not illustrated) may be disposed in the display area  612 . Therefore, an image may be displayed in both side areas  613  of the fingerprint sensor, and thus it is possible to produce a wider variety of screens. 
     Referring to  FIG. 9 , in the present exemplary embodiment, an image generated from the display module  210  may be understood as being displayed on a lower part (i.e., the display area  612 ) of the cover window  110  except for a part in which the fingerprint sensor  141  is disposed. 
       FIG. 19  is a perspective view illustrating a fingerprint sensor module assembly integrated with a cover window for an electronic device according to a fifth exemplary embodiment.  FIG. 20  is a perspective view illustrating a fingerprint sensor module of the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the fifth exemplary embodiment.  FIG. 21  is a cross-sectional view taken along line G-G of  FIG. 19 .  FIG. 22  is an exploded perspective view illustrating the fingerprint sensor module assembly integrated with a cover window for an electronic device according to the fifth exemplary embodiment. In the exemplary embodiment, the fingerprint sensor module may have a different configuration. Since the other components are the same as those of the first exemplary embodiment described above, descriptions thereof will be omitted. 
     As illustrated in  FIGS. 19 to 22 , a fingerprint sensor module  710  of a fingerprint sensor module assembly  700  integrated with a cover window for an electronic device according to the exemplary embodiment may include a fingerprint sensor  711 , a substrate  712 , a base  720 , and a cover  730 . 
     Here, all of the content related to the fingerprint sensor of the first exemplary embodiment may be applied to the fingerprint sensor  711 . 
     The fingerprint sensor  711  may be mounted on the substrate  712 , and in the exemplary embodiment, the substrate  712  may be a rigid printed circuit board (PCB). 
     The base  720  may include a groove  721 , a reflective part  724 , and a through part  725 . 
     As illustrated in  FIG. 22 , the groove  721  may be disposed to be recessed on an upper surface  722  of the base  720 . Further, supporting units  723  may be disposed near a center of the groove  721 , and the substrate  712  on which the fingerprint sensor  711  is mounted may be supported by the supporting units  723 . A pair of supporting units  723  may be disposed to stably support the substrate  712 . 
     Light-emitting units  714  may be disposed on a lower surface  713  of the substrate  712 . All of the content related to the light-emitting unit of the first exemplary embodiment described above may be applied to the light-emitting units  714 . 
     The reflective part  724  may be disposed in an inner surface of the groove  721 . The reflective part  724  may be disposed by vapor deposition, printing, spraying, plating, or the like. For example, the reflective part  724  may be formed by being coated with a solution having a reflective function or may be formed by being coated with a reflective film. Therefore, light emitted from the light-emitting units  714  which are disposed on the lower surface  713  of the substrate  712  may be reflected by the reflective part  724 . In addition, the reflective part  724  may be configured to enable light to be completely reflected. 
     Further, the through part  725  may be disposed at a center of the base  720  and a connector  715  may be mounted on a center of the lower surface  713  of the substrate  712 . The connector  715  may be exposed to the outside of the fingerprint sensor module  710  through the through part  725  and may be electrically connected to a main substrate (not illustrated) disposed in an electronic device. 
     The cover  730  may cover an upper surface of the base  720  and fix the fingerprint sensor  711 . 
     The cover  730  may have an opening  731  formed therethrough. The fingerprint sensor  711  may be coupled to the opening  731 , and a sensing unit (not illustrated) may be exposed through the opening  731 . 
     A fixing unit  733  may be disposed to protrude from a lower surface  732  of the cover  730 , and the substrate  712  may be disposed at and fixed to the inside of the fixing unit  733 . 
     The cover  730  may be made from a light-transmitting material, and thus light emitted from the light-emitting unit  714  may be transmitted through the cover  730 . 
     A light-shielding unit  734  may be disposed on an upper surface of the cover  730 , and the light-shielding unit  734  may block light. The light-shielding unit  734  may not be disposed in a part of an area of the upper surface of the cover  730 . Here, the part of the area may be a band-shaped open area  735  spaced apart from the fingerprint sensor  711  by a predetermined distance and having a predetermined width along an edge of the fingerprint sensor  711 . 
     The light-shielding unit  734  may be provided by vapor deposition, printing, spraying, plating, or the like. For example, the light-shielding unit  734  may be formed by being coated with a solution having a light blocking function, or may be formed by being coated with a film having a light blocking function. 
     Therefore, light which travels through the cover  730  may be emitted through the open area  735  disposed on the upper surface of the cover  730 . The open area  735  may serve as an indicator as described above. 
     A thin coating layer (not illustrated) may also be disposed in the open area  735 , and the coating layer may have a color. 
     Further, the coating layer may be formed to be thin enough to enable light to be transmitted through the cover  730 . The color layer may express a color even when light is not emitted from the light-emitting unit  714 , and thus a function of the indicator may be implemented even when light is not emitted from the light-emitting unit  714 . 
     An adhesive  740  for adhering the base  720  to the cover  730  may be disposed between the upper surface  722  of the base  720  and the lower surface  732  of the cover  730 . There is no limit on the type and form of the adhesive  740 , and for example, a double-sided adhesive tape may be used. 
     Further, the fingerprint sensor module  710  may be coupled to a seating part  751  of a cover window  750 . In the exemplary embodiment, a case in which the seating part  751  is formed to have a groove shape is described as an example. However, the following description may be equally applied to a case in which the seating part  751  is formed as a lower surface of the cover window  750  other than the case in which the seating part  751  is formed to have a groove shape. 
     An adhesion part  755  may be disposed between the fingerprint sensor module  710  and the seating part  751  to couple the fingerprint sensor module  710  and the seating part  751 . 
     The adhesion part  755  may be disposed on the entire seating part  751  and may have light transmittance so that light emitted from the open area  735  of the cover  730  may be introduced into the cover window  750 . 
     Although certain exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent from this description. Accordingly, the inventive concept is not limited to such embodiments, but rather to the broader scope of the presented claims and various obvious modifications and equivalent