various kinds of key - less entry systems exist in the market . some keyless entry systems require activation ( such as by pushing a button ) by a user in order to unlock a door lock . other types are able to unlock a door lock without an activation by a user since a wireless key detector (“ key fob ”) recognizes an approaching user with the key fob within a predetermined area . a smart entry system , as referred to herein may be one of the key - less entry system which has a wireless key fob detector , a touch sensor , a user hand or grip detector and so on . the concept of this present disclosure can be applied to all kinds of key - less entry systems including smart entry system for vehicles . fig1 a - 1c illustrate various views of a door handle in accordance with an exemplary aspect of the disclosure . in particular , a door handle 100 includes a first body member 110 , which faces away from a vehicle body , and a second body member 120 , which faces a vehicle body . the second body member 120 can also be understood as being located on the “ working ” side of the door handle , as the second body member 120 is typically grasped by a vehicle passenger to actuate the handle . fig2 a and 2b illustrate exploded views the door handle in accordance with an exemplary aspect of the disclosure . as shown in fig2 a and 2b , the door handle 100 includes a smart antenna 200 , which is used as part of a smart entry system . the door handle 100 further includes an led board 310 that includes a plurality of leds 320 . the leds may all transmit the same color , or each may transmit different colors from each other . the light emitted from the leds 320 is transmitted through the top and bottom surfaces the first body member 110 via the transmission elements 130 and 140 . the transmission elements 130 and 140 can be clear resin elements that are made of , for example , acrylic or polycarbonate . as shown in fig2 a and 2b , the transmission elements 130 and 140 are each long , continuous members that extend lengthwise along the door handle 100 . thus , unlike a configuration in which single leds are provided to provide single points of light , the transmission elements 130 and 140 are able to provide an uninterrupted , continuous band of light along the length of both the upper and lower portions of the door handle 100 . fig3 a illustrates a side cut - away view of the door handle 100 , and fig3 b illustrates a top cut - away view of the door handle 100 . as shown in fig3 b , the door handle 110 is able to accommodate a wire harness 330 and an electronic circuit board 340 . as discussed in greater detail below , the inclusion of the wire harness 330 and the electronic circuit board 340 in a single package with the smart antenna 200 allows the door handle to perform various lighting operations . fig4 a - 4f illustrate cross sectional views along a cross - section of the door handle in accordance with several exemplary aspects of the disclosure . the door handles illustrated in fig4 a - 4f are designed such that the first and second transmission elements and the first and second body members of the door handle can be assembled in a watertight manner without any gaps . fig4 a shows a cross - sectional view of the door handle 100 taken along the line a - a in fig1 a . the transmission element 130 is exposed to a top surface of the door handle 100 , and the transmission element 140 is exposed to a bottom surface of the door handle 140 . each of the transmission elements 130 and 140 are in direct contact with both the first body member 110 and the second body member 120 . as shown in fig4 a , the led board 310 acts as a locater that locates the transmission elements 130 and 140 within the door handle 100 . in particular , the transmission member 130 is pushed up into place within the first body member 110 by a top portion of the led board 310 . likewise , the transmission member 140 is pushed down into the first body member 110 by a bottom portion of the led board 310 . in this manner , the led board 310 causes the transmission elements 130 and 140 as well as the first and second body members 110 and 120 to fit together in a snug fashion without gaps . thus , in this example , the led board 130 has the dual functions of supporting the leds 320 and also locating the transmission members 130 and 140 in the door handle 100 . fig4 b shows a cross - section of a door handle 100 a that includes a first body member 110 a , a second body member 120 a , a smart antenna 200 a , an led board 310 a , at least one led 320 a , a transmission element 130 a and a transmission element 140 a . the embodiment in fig4 b differs from the embodiment in fig4 a in that the transmission elements 130 a and 140 a do not make direct contact with the second body member 120 a . in this configuration , the location of the transmission elements 130 a and 140 a is handled by the location and size of the led board 310 , and is not affected by the location of the second body member 120 a . therefore , existing manufacturing techniques , which do not incorporate the transmission elements 130 a and 140 a , can be used so as to locate the first and second body members 110 and 120 relative to each other in a gap - free manner . in other words , the incorporation of the transmission elements 130 a and 140 a does not become a source of error in the manufacturing process with respect to the location of the first and second body members 110 and 120 . thus , the number of parts that must be manufactured with tight tolerances can be reduced . as a result , it is easier to control the overall tolerances during manufacture of the 100 a , which can reduce the appearance of a gap between the first body member 110 a and the second body member 120 a . fig4 c shows a cross - section of a door handle 100 b that includes a first body member 110 b , a second body member 120 b , a smart antenna 200 b , an led board 310 b , at least one led 320 b , a transmission element 130 b and a transmission element 140 b . the embodiment in fig4 c differs from the previous embodiments in that the transmission elements 130 b and 140 b are secured to the first body member 110 b by ultrasonic welding at locations 132 b and 142 b . this configuration further reduces the need for tight tolerances in manufacturing , as neither of the second body member or the led board 310 b are used to locate the transmission elements 130 b and 140 b . fig4 d shows a cross - section of a door handle 100 c that includes a first body member 110 c , a second body member 120 c , a smart antenna 200 c , an led board 310 c , at least one led 320 c , a transmission element 130 c and a transmission element 140 c . the embodiment in fig4 d differs from the previous embodiments in that the transmission elements 130 b and 140 b are secured to each of the first body member 110 c , the second body member 120 c , and the a circuit board 210 c of the smart antenna 200 c , but are not in direct contact with the led board 310 c . in particular , the circuit board 210 c includes stops 212 c that locate the transmission elements 130 b and 140 b within the door handle 100 c . this configuration allows for more flexibility in the placement of the led board 310 c within the door handle 100 c . fig4 e shows a cross - section of a door handle 100 d that includes a first body member 110 d , a second body member 120 d , a smart antenna 200 d , an led board 310 d , at least one led 320 d , a transmission element 130 d and a transmission element 140 d . the embodiment in fig4 e differs from the previous embodiments in that the transmission elements 130 d and 140 d are secured to the first body member 110 d by snap - fit at locations 132 d and 142 d . this configuration further reduces the need for tight tolerances in manufacturing , as neither of the second body member 102 d or the led board 310 d are used to locate the transmission elements 130 d and 140 d . fig4 f shows a cross - section of a door handle 100 e that includes a first body member 110 e , a second body member 120 e , a smart antenna 200 e , an led board 310 e , at least one led 320 e , a transmission element 130 e and a transmission element 140 e . the embodiment in fig4 f differs from the previous embodiments in that the transmission elements 130 e and 140 e are secured to the second body member 120 e by a slant stopper at locations 132 e and 142 e . the slant angle of the slant stoppers creates stabilizing forces in both two directions , and thereby reduces the need for tight tolerances in manufacturing , as the led board 310 e is not used to locate the transmission elements 130 e and 140 e . fig5 a - 5d illustrate cross sectional views of further embodiments of the present disclosure . the examples shown in fig5 a - 5d include waterproof configurations , in which the smart antenna 200 is encased in a cover so as to become a waterproof antenna assembly 200 ′. likewise , the leds and led boards depicted in fig5 a - 5d are configured to be waterproof in a manner that will be readily apparent to those having skill in the art . fig5 a shows a cross - section of a door handle 100 g that includes a first body member 110 g , a second body member 120 g , a waterproof smart antenna assembly 200 ′, an led board 310 g , at least one led 320 g , and a single transmission element 150 g . the embodiment in fig5 a differs from the previous embodiments in that plural transmission elements are replaced by a single transmission element 150 g that is sandwiched between the first body member 110 g and the second body member 120 g . fig5 b shows a cross - section of a door handle 100 h that includes a first body member 110 h , a second body member 120 h , a waterproof smart antenna assembly 200 ′, an led board 310 h , at least one led 320 h , a transmission element 130 h and a transmission element 140 h . the example in fig5 b is the same as that shown in fig4 a , with the exception that the smart antenna 200 is replaced with a waterproof smart antenna assembly 200 ′. in particular , the led board 310 h has the dual functions of supporting the leds 320 h and also locating the transmission members 130 h and 140 h in the door handle 100 h . fig5 c shows a cross - section of a door handle 100 j that includes a first body member 110 j , a second body member 120 j , a smart antenna 200 , an led board 310 j , at least one led 320 j , a transmission element 130 j and a transmission element 140 j . the embodiment in fig5 c differs from the previous embodiments in that the led board 10 j and the led 320 j are integrated with the waterproof smart antenna assembly 200 ′. in this example , the waterproof smart antenna assembly 200 ′ includes stops 212 ′ j that locate the transmission elements 130 j and 140 j within the door handle 100 j . fig5 d shows a cross - section of a door handle 100 i that includes a first body member 110 i , a second body member 120 i , an led board 310 i , at least one led 320 i , a transmission element 130 i and a transmission element 140 i . the embodiment in fig5 d differs from the previous embodiments in that the door handle 100 i does not include a smart antenna 200 . as noted above , the door handle described herein can include leds that transmit several different colors . this configuration allows a vehicle passenger to gain valuable information as they approach a vehicle with a key fob that communicates with a smart antenna 200 . for example a door handle can show a welcome status with a white light , a lock status with a red light , and unlock status with a green light . when all of the doors include the handles disclosed herein passengers easily understand which door is locked or unlocked . basically , lighting control is achieved based on a “ smart entry system ” such as lighting duration . for example , in an initial state , there is no lighting . as a vehicle owner approaches a vehicle , and comes within a predetermined area such that a key fob carried by the vehicle owner is detected by a smart antenna in the handle , a white light is transmitted from the handle . once the vehicle owner touches a smart sensor , all of the vehicle doors unlock , and the handle lights up green . once the vehicle owner and the vehicle passengers get into the vehicle , the handle lighting turns off . in another example , as a vehicle owner approaches a vehicle , and comes within a predetermined area such that a key fob carried by the vehicle owner is detected by a smart antenna in the handle , a white light is transmitted from the handle . once the vehicle owner touches a smart sensor , all of the vehicle doors unlock , and the handle lights up green . in this example , if the owner does not get into the vehicle after a predetermined period of time , all of the doors lock , and the vehicle handle lights red . in another example , when the vehicle owner exits the vehicle , the vehicle handle lights up white . once all of the doors are locked , the door handle lights up red . when the vehicle owner passes a predetermined distance away from the vehicle , such that the smart antenna no longer detects a key fob carried by the vehicle owner , the handle light turns off . in another example , in an initial state , there is no lighting . as a vehicle owner approaches a vehicle , and comes within a predetermined area such that a key fob carried by the vehicle owner is detected by a smart antenna in the handle , a white light is transmitted from the handle . once the vehicle owner touches a smart sensor , all of the vehicle doors unlock , and the handle lights up green . after a predetermined period of time ( i . e . five seconds ) the handle light turns white . once the vehicle owner and the vehicle passengers get into the vehicle , the handle lighting turns off . in another example , in an initial state , there is no lighting . as a vehicle owner approaches a vehicle , and comes within a predetermined area such that a key fob carried by the vehicle owner is detected by a smart antenna in the handle , a white light is transmitted from the handle . once the vehicle owner touches a smart sensor , only the driver &# 39 ; s door is unlocked , the driver &# 39 ; s handle lights up green , and all of the other vehicle doors light up with a white light . once the vehicle owner gets into the vehicle , the handle lighting turns off obviously , numerous modifications and variations of the present invention are possible in light of the above teachings . it is therefore to be understood that within the scope of the appended claims , the invention may be practiced otherwise than as specifically described herein .