Liquid crystal display device

Abstract

Disclosed are a liquid crystal display (LCD) device and a method for assembling the LCD device. The LCD device has a display section for displaying images, a receiving container for receiving the display section, a power supplying section for supplying a power source to the display section, a signal converting section for converting signals from the display section and a securing section for securing the power supplying section and the signal converting section to the receiving container. The power supplying section and the signal converting section are disposed between the display section and the securing section that is directly facing to a rear surface of the receiving container. Accordingly, a total thickness and weight of the LCD device can be minimized and an assembly facility of the LCD device can be improved.

What is claimed is: 
     
       1. A liquid crystal display (LCD) device, panel comprising:
 a display unit to display an image; 
 a first receiving unit receiving disposed on the display unit; 
 an integrateda second receiving unit disposed below the display unit to enclose the display unit together with the first receiving unit; 
 a printed circuit board (PCB) mounted on a back surface of the second receiving unit, wherein the back surface is opposite a surface of the second receiving unit facing the display unit; 
 a power supply line fixed to the back surface of the receiving unit, the power supply line comprising at least one of a first power supply line configured to supply electric power to the display unit and a second power supply line configured to supply electric power to the integrated PCB; and 
 a shielding unit mounted on the back surface of the second receiving unit and covering the integrated PCB to shield electromagnetic waves therefrom, the printed circuit board; and 
 a mold frame having an opening through which the back surface of the second receiving unit in which the printed circuit board is mounted is exposed, for receiving the second receiving unit, 
 wherein the shielding unit is mounted on a center portion of the back surface of the second receiving unit such while enclosing the printed circuit board so that at least two opposite edges of the back surface of the edge portions of the second receiving unit are exposed at predetermined widths. 
 
     
     
       2. The LCD device of  claim 1 , further comprising:
 a power supply unit mounted on the back surface of the receiving unit and electrically connected to the power supply line; and   a signal converting unit mounted on the back surface of the receiving unit,   wherein the shielding unit covers the power supply unit and the signal converting unit to shield electromagnetic waves therefrom.   
     
     
       3. The LCD device of  claim 2 , wherein the shielding unit comprises a connection portion, and the first power supply line and the second power supply line are connected to the power supply unit through the connection portion. 
     
     
       4. The LCD device of  claim 3 , wherein the connection portion is an opening formed at a sidewall of the shielding unit. 
     
     
       5. The LCD device of  claim 2 , further comprising a connecting line connected between the power supply unit and the signal converting unit. 
     
     
       6. The LCD device of  claim 5 , wherein the shielding unit further comprises a window for checking a connection with the connecting line. 
     
     
       7. The LCD device of  claim 2 , further comprising a data signal line transmitting an externally provided data signal to the signal converting unit. 
     
     
       8. A liquid crystal display (LCD) device, comprising:
 a display unit to display an image; 
 a first receiving unit having a bottom chassis receiving disposed on the display unit; 
 a second receiving unit disposed below the display unit to enclose the display unit together with the first receiving unit; 
 a printed circuit board (PCB) mounted on a back surface of the second receiving unit, wherein the back surface is opposite a surface of the second receiving unit facing the display unit; 
 a first power supply line transmitting electric power to a lamp of the display unit; a second power supply line transmitting electric power to the PCB, the first and second power supply lines being fixed to the back surface of the receiving unit; and 
 a shielding unit mounted on the back surface of the second receiving unit and covering the PCB to shield electromagnetic waves therefrom, wherein the shielding unit comprises a connection portion, and the PCB is connected to an external power line via the connection portion the printed circuit board; 
 a front case disposed in front of the first receiving unit; and 
 a rear case combined with the front case in back of the shielding unit, wherein the front case and rear case have a first thickness at a position corresponding to an edge portion of the receiving unit and the front case and the rear case have a second thickness, which is thicker than the first thickness, the second thickness at a position corresponding to the shielding unit; and 
 a mold frame having an opening through which the back surface of the second receiving unit in which the printed circuit board is mounted is exposed, for receiving the second receiving unit. 
 
     
     
       9. The LCD device of  claim 8 , wherein the shielding unit is mounted on a center portion of the back surface of the receiving unit such that at least two opposite edges of the receiving unit are exposed at predetermined widths. 
     
     
       10. The LCD device of  claim 8 , further comprising a securing member securing the first power supply line and the second power supply line to the back surface of the receiving unit, the securing member including:
 a belt type securing band having a first through-hole and a second through-hole arranged at both ends of the securing band, respectively, and being bent such that the first through-hole and the second through-hole are arranged adjacent to each other to receive the first power supply line and the second power supply line; and   a first locking screw that extends through the first through-hole and the second through-hole of the securing band to secure the securing band to the bottom chassis.   
     
     
       11. The LCD device of  claim 8 , wherein the PCB comprises a signal converting unit mounted on the back surface of the receiving unit. 
     
     
       12. The LCD device of  claim 11 , wherein the PCB further comprises an integrated PCB coupled between the signal converting unit and the displaying unit to control the display unit. 
     
     
       13. The LCD device of  claim 8 , wherein the PCB comprises a power supply unit mounted on the back surface of the receiving unit. 
     
     
       14. The LCD device of  claim 8 , wherein the receiving unit comprises a mold frame and a bottom chassis. 
     
     
       15. The display panel of claim 1, wherein the printed circuit board includes at least one of a power supply unit and a signal converting unit mounted on the back surface of the second receiving unit, the power supply unit supplies power to the display unit and the signal converting unit converts signals supplied to the display unit. 
     
     
       16. The display panel of claim 15, wherein the display unit includes an integrated printed circuit board electrically connected to the signal converting unit with a flexible printed circuit board, for controlling the operation and an operating time of the display unit in response to the signals from the power supply unit and the signal converting unit. 
     
     
       17. The display panel of claim 16, wherein the integrated printed circuit board includes a data side printed circuit board and a gate side printed circuit board, which is combined with only one side of the display unit. 
     
     
       18. The display panel of claim 17, further comprising a power supply line for supplying the power from the power supply unit to a lamp of the display unit; and a fixing member for fixing the power supply line to the back surface of the receiving unit. 
     
     
       19. The display device of claim 8, further comprising a mold frame having a bottom surface opened so that a back surface of the second receiving unit in which the printed circuit board is mounted is exposed, for receiving the second receiving unit. 
     
     
       20. The display device of claim 8, wherein the printed circuit board includes at least one of a power supply unit and a single converting unit mounted on the back surface of the second receiving unit, the power supply unit supplies power to the display unit and the signal converting unit converts signals supplied to the display unit. 
     
     
       21. The display device of claim 20, wherein the display unit includes an integrated printed circuit board electrically connected to the signal converting unit with a flexible printed circuit board, for controlling the operation and an operating time of the display unit in response to the signals from the power supply unit and the signal converting unit. 
     
     
       22. The display device of claim 21, wherein the integrated printed circuit board includes a data side printed circuit board and a gate side printed circuit board, which is combined with only one side of the display unit. 
     
     
       23. The display device of claim 22, further comprising a power supply line for supplying the power from the power supply unit to a lamp of the display unit; and a fixing member for fixing the power supply line to the back surface of the receiving unit. 
     
     
       24. A display device, comprising:
 a display unit to display an image, a first receiving unit disposed on the display unit, a second receiving unit disposed below the display unit to enclose the display unit together with the first receiving unit, a shielding unit mounted on the back surface of the second receiving unit and covering the printed circuit board, and a shielding unit mounted on the back surface of the second receiving unit such that second the receiving unit has two exposed opposite edge portions, the shielding unit covers the printed circuit board;   a front case disposed in front of the first receiving unit;   a rear case combined with the front case in back of the shielding unit, wherein the rear case has a projecting portion to receive the shielding unit and wherein the back surface of the second receiving unit is opposite a surface of the second receiving unit facing the display unit; and   a mold frame having an opening through which the back surface of the second receiving unit in which the printed circuit board is mounted is exposed, for receiving the second receiving unit.   
     
     
       25. The display device of claim 24, further comprising an abutment combined with the projected region in a back surface of the rear case, to support the display unit.