Lamp assembly, light supplying apparatus and liquid crystal display device using the same

Abstract

A lamp assembly, light supplying module and LCD device using the same are provided. The LCD device includes the light-supplying module for generating a first light, a light distribution-changing module for receiving the first light and changing the optical characteristics of the first light to output a second light, and a display module for receiving the second light having improved optical characteristics, the light distribution-changing module being coupled to the light-supplying module by means of a first engaging member, the display module being coupled to the light distribution-changing module by means of a second engaging member, and the display module, light distribution-changing module and light-supplying module being coupled to each other by means of a third engaging member. Therefore, each component of the LCD device having above structure is easily separated, replaced and easily repaired.

1 . A lamp assembly comprising:
 at least two lamps, each of the lamps including:
 a lamp body including a fluorescent layer formed on an inner surface of the lamp body and a discharge gas layer in the lamp body; 
 a first electrode for providing the lamp body with a first discharge voltage; and 
 a second electrode for providing the lamp body with a second discharge voltage; and 
   a first board, coupled to the first electrode, for providing the first electrode with the first discharge voltage.   
   
   
       2 . The lamp assembly of  claim 1 , wherein the first board comprises:
 a first insulated body;   at least one first conductive pattern electrically connected to the first electrode of each of the lamps; and   at least two first through-holes formed on the first insulated body, each of the first through-holes receiving the first electrode of each of the lamps.   
   
   
       3 . The lamp assembly of  claim 2 , further comprising:
 a first connector installed on the first conductive pattern; and   a first terminal, coupled to the first conductive pattern through the first connector, for receiving the first discharge voltage.   
   
   
       4 . The lamp assembly of  claim 3 , wherein the first terminal is connected to an inverter for generating the first discharge voltage. 
   
   
       5 . The lamp assembly of  claim 2 , wherein the first electrode received in each of the first through-holes and the first conductive pattern are soldered and electrically connected to each other. 
   
   
       6 . The lamp assembly of  claim 1 , further comprising a first lamp holder for preventing the first electrode from moving, an end of the first lamp holder being connected to the first board. 
   
   
       7 . The lamp assembly of  claim 1 , further comprising a second board, coupled to the second electrode, for providing the second electrode with the second discharge voltage. 
   
   
       8 . The lamp assembly of  claim 7 , wherein the second board comprises:
 a second insulated body;   at least one second conductive pattern electrically connected to the second electrode of each of the lamps; and   at least two second through-holes formed on the second insulated body, each of the second through-holes receiving the second electrode of each of the lamps.   
   
   
       9 . The lamp assembly of  claim 8 , further comprising:
 a second connector installed on the second conductive pattern; and   a second terminal, coupled to the second conductive pattern, for receiving the second discharge voltage.   
   
   
       10 . The lamp assembly of  claim 9 , wherein the second terminal is connected to an inverter for providing the second terminal with the second discharge voltage. 
   
   
       11 . The lamp assembly of  claim 8 , wherein the second electrode received in each of the second through-holes and the second conductive pattern are soldered and electrically connected to each other. 
   
   
       12 . The lamp assembly of  claim 7 , further comprising a second lamp holder for preventing the second electrode from moving, an end of the second lamp holder being connected to the second board. 
   
   
       13 . The lamp assembly of  claim 1 , wherein the number of the lamps is four. 
   
   
       14 . A light supplying apparatus comprising:
 a receiving container including a bottom face, a first side wall, a second side wall facing the first side wall, a third sidewall and a fourth sidewall facing the third side wall, each of the sidewalls being extended from an edge of the bottom face to form a receiving space;   first and second lamp assembly-fixing members disposed on the bottom face of the receiving container, the first lamp assembly-fixing member being adjacent to the first sidewall, the second lamp assembly-fixing member being adjacent to the second sidewall, the first and second lamp assembly-fixing members having a bar shape, and first and second recesses being formed on upper faces of the first and second lamp assembly-fixing members, the upper faces being opposite to the bottom face of the receiving container;   a reflection member partially inserted into a slot of the first and second lamp assembly-fixing members and being opposite to the bottom face of the receiving container;   a lamp assembly, including:
 first and second boards, the first and second boards being inserted into the first and second recesses of the first and second lamp assembly-fixing members, respectively; and 
 a lamp having first and second electrodes, the first and second electrodes being connected with the first and second boards, respectively; and 
   first and second insulated members for covering the first and second lamp assembly-fixing members, respectively, and for insulating the first and second boards.   
   
   
       15 . The light supplying apparatus of  claim 14 , further comprising first and second optical sheet-fixing members disposed on the bottom face of the receiving container, the first optical sheet-fixing member being adjacent to the third sidewall, the second optical sheet-fixing member being adjacent to the fourth sidewall, the first and second optical sheet-fixing members having a bar shape. 
   
   
       16 . The light supplying apparatus of  claim 15 , wherein each of the first and second optical sheet-fixing members has a first stepped portion, and the first stepped portion is extended in a longitudinal direction of each of the first and second optical sheet-fixing members, to receive at least one optical sheet. 
   
   
       17 . The light supplying apparatus of  claim 14 , wherein a plurality of engaging holes is formed on the first sidewall, the second sidewall, and the first and second lamp assembly-fixing members. 
   
   
       18 . The light supplying apparatus of  claim 14 , wherein each of the first and second lamp assembly-fixing members is engaged with the reflection member by a screw. 
   
   
       19 . The light supplying apparatus of  claim 14 , further comprising first and second connectors, installed at the first and second boards, for receiving a first discharge voltage and a second discharge voltage, respectively. 
   
   
       20 . A liquid crystal display device comprising:
 a light supplying member, including:
 a lamp assembly for generating a first light; and 
 a receiving container having a bottom face for receiving the lamp assembly, and a plurality of sidewalls; 
   a light distribution-changing member, including:
 an optical sheet for changing optical distribution of the first light to produce a second light; 
 a first optical sheet-fixing member for receiving an edge of a bottom face of the optical sheet; 
 a second optical sheet-fixing member having first and second faces, the first face pressing an edge of an upper face of the optical sheet, and the second face being bent down to be connected one of the sidewalls of the receiving container; and 
 a first engaging member for engaging the first optical sheet-fixing member with the second optical sheet-fixing member; 
   a second engaging member for engaging one of the sidewalls of the receiving container with the second face of the second optical sheet-fixing member;   a display unit, including:
 a liquid crystal display panel, disposed on the first face of the second optical sheet-fixing member to be opposite to the optical sheet, for changing the second light into a third light having image information; and 
 a fixing member for fixing the liquid crystal display panel, the fixing member having a third face and a fourth face, the third face pressing an edge of the liquid crystal display panel, and the fourth face being bent to be connected to one of the sidewalls of the receiving container; 
   a third engaging member for engaging the first face of the second optical sheet-fixing member with the third face of the fixing member; and   a fourth engaging member for engaging one of the sidewalls of the receiving container, with the second face of the second optical sheet-fixing member and the fourth face of the fixing member.