Backlight assembly, assembling method thereof and liquid crystal display device including the same

Abstract

A lamp socket includes a body receiving a lamp, and a power supplying member disposed inside the body, the power supplying member comprising an electrical conductive material having elasticity, wherein the power supplying member electrically interconnects the lamp and an inverter substrate on which an inverter is mounted, wherein the power supplying member includes a lamp connector receiving a lead wire of the lamp, and an inverter connector formed integrally with the lamp connector, wherein the inverter connector receives a protrusion of the inverter substrate to encircle the protrusion.

1 . A lamp socket comprising:
 a body; and   a power supplying member disposed inside the body, the power supplying member comprising an electrical conductive material electrode having elasticity,   wherein the electrical conductive material electrode comprises a top electrode to supply a power and another electrode to be supplied the power by a power supplier.   
   
   
       2 . The lamp socket according to  claim 1 , wherein electrical conductive material electrode comprises an elastomer including a silicon compound and a carbon material. 
   
   
       3 . A backlight assembly comprising:
 a lamp;   an inverter mounted on an inverter substrate, wherein the inverter supplies power to the lamp;   a lamp socket including a body receiving the lamp and a power supplying member disposed inside the body, wherein the power supplying member comprises a conductive material having elasticity to electrically interconnect the lamp and the inverter substrate; and   a bottom chassis including a mounting recess for receiving the lamp socket.   
   
   
       4 . The backlight assembly according to  claim 3 , wherein the power supplying member comprises:
 a pair of coupling projections coupled to the body; and   a lamp connector connected with a lead wire of the lamp.   
   
   
       5 . The backlight assembly according to  claim 4 , wherein the lamp connector comprises:
 a fitting portion allowing the lamp lead wire to be fit therein;   a fixing groove receiving the lamp lead wire; and   a connection passageway positioned between the fitting portion and the fixing groove to guide the lamp lead wire from the fitting portion into the fixing groove.   
   
   
       6 . The backlight assembly according to  claim 5 , wherein the width of the connection passageway is smaller than that of the fixing groove. 
   
   
       7 . The backlight assembly according to  claim 6 , wherein the width of the connection passageway is smaller than that of the lamp lead wire by about 0.25 mm to about 0.35 mm, and the width of the fixing groove is smaller than that of the lamp lead wire by about 0.1 mm to about 0.2 mm. 
   
   
       8 . The backlight assembly according to  claim 4 , wherein the inverter substrate comprises a protrusion,
 the power supplying member further comprises an inverter connector formed integrally with the lamp connector and connected to the protrusion of the inverter substrate.   
   
   
       9 . The backlight assembly according to  claim 8 , wherein the inverter connector fixes the protrusion of the inverter substrate by encircling the protrusion. 
   
   
       10 . The backlight assembly according to  claim 9 , wherein the inverter connector comprises:
 an entrance portion receiving the protrusion of the inverter substrate; and   a concave groove formed inside the inverter connector having a spring therein for holding the inverter substrate.   
   
   
       11 . The backlight assembly according to  claim 4 , wherein the power supplying member comprises a chassis connector connected to the lamp connector and the bottom chassis. 
   
   
       12 . The backlight assembly according to  claim 5 , wherein the body comprises:
 a pair of coupling indents coupled to the pair of coupling projections of the power supplying member;   a lamp support portion having a holding groove formed therein for mounting a part of the lamp; and   a protective portion connected to the lamp support portion encircling the lamp connector.   
   
   
       13 . The backlight assembly according to  claim 12 , wherein the body further comprises an inverter support portion extending integrally downwardly from the protective portion, the inverter support portion encircling the inverter connector. 
   
   
       14 . The backlight assembly according to  claim 12 , wherein the body comprises silicon rubber or polycarbonate. 
   
   
       15 . The backlight assembly according to  claim 3 , wherein the lamp is formed in a ‘U’ shape, and comprises a lamp lead wire connected at one side to the power supplying member of the lamp socket and a bent portion formed at the other side of the lamp lead wire in a round shape. 
   
   
       16 . The backlight assembly according to  claim 15 , further comprising a movement-preventing member including a fitting hole formed at an upper portion and a support stand formed at a lower portion thereof. 
   
   
       17 . The backlight assembly according to  claim 3 , wherein the lamp is formed in a linear shape, and comprises a first lamp lead wire connected to the inverter and a second lamp lead wire connected to the bottom chassis, the second lamp lead wire being disposed opposite to the first lamp lead wire. 
   
   
       18 . The backlight assembly according to  claim 3 , further comprising side molds including a plurality of grooves formed on an inner wall thereof to fix the lamp. 
   
   
       19 . A method of assembling a backlight light assembly, comprising:
 providing a bottom chassis, an inverter substrate, a lamp, a lamp socket and an optical sheet element;   mounting the lamp socket to a mounting recess formed at a side of a bottom portion of the bottom chassis;   inserting the lamp into a body of the lamp socket and inserting a lamp lead wire of the lamp into a lamp connector of the lamp socket;   inserting the inverter substrate into an inverter connector of the lamp socket connected to the lamp connector of the lamp socket;   coupling a side member to the lamp socket to encircle the lamp socket; and   mounting the optical sheet element on the side member.   
   
   
       20 . The method according to  claim 19 , wherein the step of inserting the lamp lead wire of the lamp into the lamp connector further comprises the steps of:
 widening a width of a connection passageway and a fixing groove of the lamp connector using a tool disposed at a fitting portion of the lamp connector;   coupling the lamp lead wire to the fixing groove; and   removing the tool from the fitting portion.   
   
   
       21 . The method according to  claim 19 , wherein the inverter substrate comprises a protrusion inserted into the inverter connector of the lamp socket,
 the side member comprises a mold.