KR101327854B1 - Conductivity rubbor socket, liquid crystal display device using the same - Google Patents

Abstract

The present invention relates to a conductive rubber socket and a liquid crystal display device using the same, which can reduce manufacturing costs and improve display quality.

A body part integrated with a conductive rubber according to the present invention; an insertion part into which a lamp and a lamp lead wire are inserted into the body part; A seating part into which the lamp is inserted and seated; A connection portion to which the lamp lead wire is connected; And a socket fixing part for supporting and fixing the body part.

By this configuration, the present invention can improve the productivity and simplify the socket manufacturing cost and cost by simplifying the assembly compared to the lamp socket applied to the conventional backlight unit by manufacturing a conductive rubber socket integrated with conductive rubber.

In addition, since the socket is made of conductive rubber, the lamp is correctly fixed to the fixing part and the breakage of the lead wire due to the up, down, left and right shaking can be prevented. Therefore, power can be smoothly supplied to the lamp to improve the display quality of the liquid crystal display.

Socket, conductive, rubber

Description

CONDUCTIVITY RUBBOR SOCKET, LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME}

1a to 1b is a view showing a conductive rubber socket according to an embodiment of the present invention.

2 is a view showing that the lamp is coupled to the conductive rubber socket according to an embodiment of the present invention.

3 is a view showing a lower portion of the conductive rubber socket according to an embodiment of the present invention.

4 is a view showing a backlight unit using a conductive rubber socket according to an embodiment of the present invention.

5 is a view showing that the conductive rubber socket and the fixed frame is coupled according to an embodiment of the present invention.

6 is a cross-sectional view of a backlight unit according to an embodiment of the present invention.

6 is a view showing a liquid crystal display using a conductive rubber socket according to an embodiment of the present invention.

Description of the Related Art [0002]

100: conductive rubber socket 102: body portion

104: inserting portion 106: seating portion

108: connection part 110: socket fixing part

112a, 112b: Pressing groove 114: Insertion groove

116: plural projection 118: challenge hole

200: lamp 202: lamp lead wire

302: bottom cover 304: reflective sheet

306: fixing groove 308: second electrode portion

310: second electrode portion 312a, 312b: side support

314: diffuser plate 318: a plurality of optical sheets

320: first fixed frame 322: second fixed frame

324: First inverter substrate 326: Second inverter substrate

328: first transformer 330: second transformer

332: first inverter integrated circuit 334: second inverter integrated circuit

The present invention relates to a lamp connection socket and a backlight unit using the same, and more particularly, to a conductive rubber socket and a liquid crystal display device using the same, which can reduce manufacturing costs and improve display quality.

In general, the liquid crystal display device displays a desired image by adjusting the amount of light transmitted from the back light unit.

The backlight unit is divided into an edge type backlight unit and a direct type backlight unit according to the position of the fluorescent lamp.

The edge type backlight unit is mainly used for small liquid crystal display devices such as notebook computers, and the direct type backlight unit is mainly used for medium and large liquid crystal display devices such as televisions.

The conventional direct type backlight unit includes a plurality of fluorescent lamps disposed under the liquid crystal panel, a lamp socket for accommodating, fixing and lighting the fluorescent lamps, and a diffuser plate disposed on the upper surface of the fluorescent lamps and a lower surface of the fluorescent lamps. It includes a reflector.

The dual lamp socket includes a body supporting an edge of the lamp, an electrode part provided on the body to supply a lamp driving voltage, and a cover shaped to prevent the electrode part and the defective fluorescent lamp from being separated.

The lamp socket of the backlight unit increases manufacturing cost by adding a complicated assembly process. In addition, since the manufacture of the material using a metal or plastic material to fix the fluorescent lamp to the socket, the lead wire of the lamp is broken by frequent shock, so that the power supply to the lamp cannot be supplied smoothly. Therefore, a problem of degrading display quality occurs in the liquid crystal display.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a conductive rubber socket and a liquid crystal display device using the same, which can reduce manufacturing cost and improve display quality.

Conductive rubber socket and a liquid crystal display device using the same according to an embodiment of the present invention for achieving the above technical problem is a conductive rubber socket integrated with a conductive rubber body portion; An insertion part into which a lamp and a lamp lead wire are inserted into the body part; A seating part into which the lamp is inserted and seated; A connection portion to which the lamp lead wire is connected; And a socket fixing part for supporting and fixing the body part.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments.

1a to 1b is a view showing a conductive rubber socket according to an embodiment of the present invention, Figure 2 is a view showing a lamp is coupled to the conductive rubber socket according to an embodiment of the present invention.

1 and 2, a conductive rubber socket according to an exemplary embodiment of the present invention includes a body portion 102 integrated with conductive rubber, and a lamp 200 and a lamp lead wire 202 inserted into the body portion 102. A socket fixing portion for supporting and fixing the insertion portion 104, the seating portion 106 into which the lamp 200 is inserted, and the connection portion 108 and the body portion 102 to which the lamp lead wires 202 are connected. And 110.

The body portion 102 is formed integrally with conductive rubber. At this time, the body portion 102 is formed with pressing grooves (112a, 112b) on both sides of the upper end of the lamp 200 is inserted so as to press the inserted lamp 200.

The pressing grooves 112a and 112b are formed to prevent the flow of the lamp 200. Here, the pressing grooves 112a and 112b press the upper end of the lamp 200 so that the lamp 200 does not escape to the outside after the lamp 200 is inserted.

The insertion unit 104 is formed such that the lamp 200 and the lead wire 202 of the lamp can be inserted through the insertion groove 114. Here, the upper end of the insertion portion 104 is formed to be inclined to the insertion groove 114 is inserted into the lamp 200 and the lead wire 202 of the lamp. At this time, the insertion portion 104 is formed in a different thickness depending on the position where the lamp 102 and the lead wire 202 of the lamp is inserted.

The seating part 106 is formed to allow the lamp 200 inserted through the opened insertion part 104 to be seated. Here, the mounting portion 106 is formed to prevent the lamp 200 from flowing. In this case, the seating portion is formed to include a plurality of support portions 116.

Each of the plurality of supports 116 is formed to be able to be combined with the outer shape of the lamp 200 to be inserted.

The connecting portion 108 is formed to be connected to the lead wire 202 of the lamp which is connected to the electrode (not shown) of the lamp 200. At this time, the connection unit 108 supplies power supplied through the inverter (not shown) to the lead wire 202 of the lamp.

The socket fixing part 110 is formed so that the body part 102 of the conductive rubber socket 100 can be fixed to a fixing frame (not shown). Here, the socket fixing part 110 is inserted into a fixing frame (not shown) to fix the body part 102 connected to the lamp 200. At this time, the socket fixing part 110, as shown in Figure 3, is configured to include a conductive hole 118 that can be coupled with an inverter (not shown).

The conductive hole 118 is formed to be connected to the protrusion (not shown) of the inverter. In this case, the conductive hole 118 is connected to the protrusion of the inverter to supply power to the lamp 200.

By manufacturing a conductive rubber socket integrated with conductive rubber as described above, productivity can be improved by simplifying assembly compared to the lamp socket applied to the conventional backlight unit, and the socket manufacturing cost and cost can be reduced.

4 is a view illustrating a backlight unit using a conductive lamp socket according to an exemplary embodiment of the present invention.

Referring to FIG. 4, a plurality of lamps 200 having first and second electrodes 202a and 202b, a plurality of conductive rubber sockets 100 formed to supply power to the plurality of lamps 200, and The bottom cover 302 and the bottom for accommodating the first and second fixing frames 320 and 322 for fixing the plurality of conductive rubber sockets 100 and the first and second fixing frames 320 and 322 are accommodated. And a first and a second inverter part for supplying power to the lamp 200 connected to the conductive rubber socket 100 through the cover 302.

Since the plurality of conductive rubber sockets 100 are the same as those described above with respect to the conductive rubber sockets illustrated in FIGS. 1A to 3, description thereof will be omitted.

Each of the plurality of lamps 200 is formed to have first and second electrodes 202a and 202b. In this case, the plurality of lamps 200 receives power from the first and second inverters disposed at both sides of the bottom cover 302. To this end, the plurality of lamps 200 may be any one of an External Electrode Fluorescent Lamp (EEFL), a Cold Cathode Fluorescent Lamp (CCFL), an External Internal Fluorescent Lamp (EIFL), and a Hot Cathode Fluorescent Lamp (HCFL).

The first and second fixing frames 320 and 322 are formed to fix the plurality of conductive rubber sockets 100, as shown in FIG. 5. Here, the first and second fixing frames 320 and 322 are disposed on both sides of the bottom cover 306. In addition, the first and second fixing frames 320 and 322 are formed to include a locking portion 338 coupled with the pressing grooves 112a and 112b of the conductive rubber socket. In this case, the first and second fixing frames 320 and 322 are formed of an insulating material such as plastic.

The bottom cover 302 is open at both sides thereof to allow the first and second electrode parts 308 and 310 connected to the plurality of lamps 200 to be seated. At this time, the first and second side supports 312a and 312b are provided on both sides of the opening. In the bottom cover 302, a plurality of fixing grooves 306 are formed in regions corresponding to the plurality of conductive rubber sockets 100 at both edges at which the first and second electrode portions 308 and 310 are seated. In addition, a reflection sheet 304 is attached to the side and bottom surfaces of the bottom cover 320 to reflect light from the plurality of lamps 200 toward the diffusion plate 314. Here, the reflective sheet 304 may not be attached to the portions corresponding to the first and second electrode portions 308 and 310.

The first inverter unit includes a first inverter substrate 324 disposed on one side of the bottom cover 320, a first inverter integrated circuit 332 which is changed into an AC power source, and a first step-up that boosts the AC power source to a lamp driving voltage. A transformer 328 and a protrusion 336 for outputting a lamp driving voltage to the conductive rubber socket 100 are configured.

The first inverter integrated circuit 332 is disposed on the first inverter substrate 324 to convert input power supplied from the outside into AC power.

The first transformer 328 boosts the AC power supplied from the first inverter integrated circuit 332 to the lamp driving voltage and transfers the AC power to the protrusion 336.

The protrusion 336 is formed to be connected to the conductive rubber socket 100 to be molded. Here, the protrusion 336 supplies the lamp driving voltage supplied from the first transformer 328 to the lamp 200 connected to the conductive rubber socket 100.

The second inverter unit includes a second inverter substrate 322 disposed on one side of the bottom cover 320, a second inverter integrated circuit 334 that changes into an AC power source, and a second that boosts the AC power to a lamp driving voltage. It includes a transformer 330 and the projection 336 for outputting the lamp driving voltage to the conductive rubber socket 100.

The second inverter integrated circuit 334 is disposed on the second inverter substrate 322 to convert input power supplied from the outside into AC power.

The second transformer 330 boosts the AC power supplied from the second inverter integrated circuit 334 to the lamp driving voltage and transfers the AC power to the protrusion 336.

The protrusion 336 is formed to be connected to the conductive rubber socket 100 to be molded. Here, the protrusion 336 supplies the lamp driving voltage supplied from the second transformer 328 to the lamp 200 connected to the conductive rubber socket 100.

The first side support 312a is provided at one edge of the bottom cover 302 to cover the first electrode 310. In this case, the side support 312a includes a groove into which the first electrode portion 310 of each lamp 200 is inserted.

The second side support 312b is installed at the other edge of the bottom cover 302 to cover the second electrode part 308. At this time, the side support 312b includes a groove into which the second electrode part 308 of each lamp 200 is inserted.

The diffusion plate 314 is stacked in the front opening of the bottom cover 302 on the first and second side supports 312a and 312b. In this case, a plurality of protrusions (not shown) may be installed at the central portion of the bottom cover 302 to prevent sagging of the diffusion plate 312. The diffusion plate 312 diffuses the light radiated from the plurality of lamps 200.

The plurality of optical sheets 318 are composed of two prism sheets 318a and 318b for condensing the light diffused by the diffuser plate 314.

7 is a diagram illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 7, the liquid crystal display according to the exemplary embodiment of the present invention includes a backlight unit 300, a panel guide 402, a liquid crystal panel 404, and a top cover 406.

The backlight unit 300 is formed of a backlight unit according to an exemplary embodiment of the present invention as shown in FIGS. 4 to 6.

The liquid crystal panel 404 includes a transistor array substrate and a color filter array substrate bonded to each other, a spacer (not shown) for maintaining a constant cell gap between the two array substrates, and a liquid crystal layer filled in the liquid crystal space provided by the spacer. It is configured to include (not shown). At this time, the liquid crystal panel 404 displays an image by adjusting the light transmittance of the liquid crystal.

The color filter array substrate includes a color filter, a common electrode, a black matrix, and the like. Here, the common electrode may be formed on the transistor array substrate.

The transistor array substrate is formed in a region defined by a plurality of data lines (not shown) and a plurality of gate lines (not shown), and is connected to a thin film transistor (not shown) connected to the gate line and the data line, and connected to the thin film transistor. It is configured to include a liquid crystal cell (not shown).

The panel guide 402 is stacked on the bottom cover 302, and the top cover 406 having a rectangular frame shape that borders the edge of the liquid crystal panel 404 is assembled to the panel guide 402 and the bottom cover 302. .

The top cover 406 surrounds the front edge of the liquid crystal panel 404 disposed on the bottom cover 302 and the side of the bottom cover 302. To this end, the top cover 406 includes a non-display area except for the display area of the liquid crystal panel 404, that is, a flat part covering the edge, and a side part bent vertically from the flat part to surround the side of the bottom cover 302. It is configured by.

Therefore, the liquid crystal display device of the present invention can improve productivity by simplifying assembly and reduce socket manufacturing cost and cost by using a conductive rubber socket integrated with conductive rubber.

In addition, the conductive rubber socket prevents breakage of the lead wire of the lamp, thereby smoothly supplying power to the lamp, thereby improving display quality of the liquid crystal display device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. And will be apparent to those skilled in the art.

The conductive rubber socket and the liquid crystal display device using the same according to an embodiment of the present invention as described above by manufacturing a conductive rubber socket integrated with a conductive rubber to improve productivity by simplifying the assembly as compared to the lamp socket applied to the conventional backlight unit It can improve the socket manufacturing cost and cost.

In addition, since the socket is made of conductive rubber, the lamp is correctly fixed to the fixing part and the breakage of the lead wire due to the up, down, left and right shaking can be prevented. Therefore, power can be smoothly supplied to the lamp to improve the display quality of the liquid crystal display.

Claims (13)

A body portion integrated with a conductive rubber; An insertion part into which a lamp and a lamp lead wire are inserted into the body part; A seating part into which the lamp is inserted and seated; A connection portion to which the lamp lead wire is connected; And Conductive rubber socket characterized in that it comprises a socket fixing portion for supporting and fixing the body portion. The method of claim 1, Conductive rubber socket, characterized in that it comprises a pressing groove formed on both sides of the body portion to press the lamp seated on the seating portion of the body portion. The method of claim 1, The insert portion conductive rubber socket, characterized in that inclined to the insertion groove into which the lamp is inserted. The method of claim 1, And the connection part is electrically connected to the lead wire of the lamp inserted through the upper opening. The method of claim 1, The seating portion conductive rubber socket, characterized in that a plurality of protrusions are formed to prevent the lamp from flowing. 6. The method of claim 5, The projections are conductive rubber socket, characterized in that in combination with the outer shape of the lamp is fixed. The method of claim 1, The socket fixing portion is a conductive rubber socket, characterized in that it comprises a conductive hole connected in combination with the protrusion of the inverter. A liquid crystal panel for displaying an image by adjusting a light transmittance; And A backlight unit radiating light onto the liquid crystal panel; The backlight unit A plurality of lamps having first and second electrodes; A plurality of conductive rubber sockets according to any one of claims 1 to 7, which are configured to supply power to the plurality of lamps; First and second fixing frames for fixing the plurality of conductive rubber sockets; A bottom cover for accommodating the first and second fixing frames; And And first and second inverters penetrating the bottom cover to supply power to the conductive rubber socket. 9. The method of claim 8, And the bottom cover includes a fixing groove into which both of the first and second fixing frames and the socket fixing portions of the plurality of conductive rubber sockets are inserted. The method of claim 9, And the inverter unit includes a plurality of protrusions penetrating through the fixing groove to be coupled to the conductive holes of the conductive rubber socket to supply power. 9. The method of claim 8, And the fixing frame includes a locking part for fixing the conductive rubber socket. delete delete

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