KR200417775Y1 - LCD equipped with light emitting unit - Google Patents

Abstract

The present invention relates to a light emitting unit mounted on a liquid crystal display device, the light emitting unit is formed by bending a plate material; and a fluorescent lamp seated on the plate; and is mounted on both ends of the plate to support the fluorescent lamp, And a connecting member for connecting the electric wires supplied with the power and the fluorescent lamp to each other, the connecting member having one end of the fluorescent lamp inserted therein and having a connection line of the inserted fluorescent lamp being exposed; and the fluorescent lamp A first terminal terminal for electrically connecting a connection line of the first wire and an end of the first wire; And a first case coupled to the first connector; a second connector having a shape in which the first connection member and the other end of the fluorescent lamp are inserted and the first wire is seated; and seated on the second connector. A second terminal terminal connecting the other end of the fluorescent lamp to a second wire; And a second case configured to support the first wire to one side and fastened to the second connector. According to such a configuration, it is possible to prevent the connection between the fluorescent lamp and the wire by soldering, and to assemble it by a simple work process.

LCD, Cold Cathode, Fluorescent, Lead, Lead Poisoning, Automation, Unit

Description

Light emitting unit mounted on liquid crystal display device {LCD equipped with light emitting unit}

1 is a perspective view of a light emitting unit according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the light emitting unit shown in FIG.

3 is a cross-sectional view of FIG.

4A to 4C are views for explaining the first connection member shown in FIG.

5a to 5c are views for explaining the second connecting member shown in FIG.

6 is a view showing a state in which a light emitting unit is mounted on a liquid crystal display device.

7a to 7c are views for explaining the light emitting unit according to the prior art.

8A to 8E are views for explaining another conventional technology.

Explanation of symbols on the main parts of the drawings

10: light emitting unit, 11: plate,

12: fluorescent lamp, 13: connecting wire,

14: first wire, 15: second wire,

21: connecting line seating groove, 22: locking projection,

23: insertion groove, 31: horizontal plate,

32: insert plate, 33: side plate,

34: winding plate, 41: locking groove,

100: first connecting member, 110: first connecting port,

130: terminal 1, 150: case 1,

151: first reputation, 153: first hall,

155: first pressing plate, 200: second connecting member,

210: second connector, 211: wire seating groove,

230: terminal 2, 250: case 2,

251: second reputation, 253: second hall,

255: second press plate, 257: wire insertion groove

The present invention relates to a light emitting unit mounted on a liquid crystal display device. In particular, a cold cathode fluorescent lamp can be fixed without a soldering process and can be easily assembled by an automated process, thereby reducing manufacturing costs. It relates to a light emitting unit that can be made miniaturized.

In general, a liquid crystal device (LCD) is a device that displays a liquid crystal using a property in which molecules are changed when voltage is applied among various properties of a liquid crystal, and a liquid crystal is contained in a narrow gap between two thin glass substrates. A voltage is applied through a transparent electrode to change the direction of the molecules, passing or reflecting light. LCDs can be made thinner than other displays and consume less power.

Since the liquid crystal display is a non-emissive type display device that does not emit light by itself, a separate light source is required. Therefore, there is also a reflective liquid crystal display device using a light source of the surrounding, but because it is subject to a lot of restrictions on the use of the surrounding environment has a light source of its own.

Such an independent light source is called a backlight, and EL, LED, CCFL, HCFL, etc. are used as the light source. CCFL (Cold Cathode Fluorescent Lamp) has long life, low power consumption, and can be formed thinly.

The cold cathode fluorescent lamps are mounted on the upper and lower ends of the liquid crystal display, respectively, and as shown in FIGS. 7A to 7C, a plate 1020 is formed by bending a rectangular plate into a shape having a cross-section of a “c” shape. A pair of fluorescent lamps 1030 is mounted on the plate 1020. And it is connected to the wire by soldering in order to apply electricity to the fluorescent lamp 1030.

In this way, when the wires are connected to both ends of the fluorescent lamp by soldering, it is fixed to the plate 1020 by mounting them. At this time, the fixing of the plate 1020 and the fluorescent lamp 1030 is connected to the connecting member 1070 and the wires of one end Along the lower surface of the plate 1020, the other side is fixed to meet each other.

However, soldering is used to connect the fluorescent lamp and the wire. At this time, the solder, which is a heavy metal, is evaporated in the form of vapor and absorbed by the human body through the worker's respiratory system, thereby harming health. There is a problem in that it is contaminated with health or the natural environment.

Lead is a basic element present in nature and does not lose its toxicity when decomposed from a compound and exposed to the environment. Lead accumulates in the body and its toxicity appears after a long time, which is fatal when it develops. Lead poisoning can interfere with the brain and nervous system, leading to mental disorders, physical paralysis, anemia and vomiting. In severe cases, death can occur within one to two days.

Lead is highly toxic, and metals are actively moving to regulate the use of lead internationally. Lead-regulation initiatives are active worldwide, including the United Nations pushing for import and export restrictions on lead-containing products. Especially in the US, soldering to food cans is prohibited.

Such a toxic lead is exposed to workers when manufacturing the liquid crystal display device, the liquid crystal display device containing lead has a problem that pollutes the environment.

In addition, as described above, there is a problem in that the soldering is made manually and fixed to the plate by the connecting member, and the work of arranging the wires is complicated, thereby increasing the manufacturing cost.

Therefore, there is a light emitting unit (Korean Application No. 10-2005-52996) filed by the present applicant in order to solve such a problem.

The pre- filed light emitting unit is composed of a plate 2020, a fluorescent lamp 2030 and the connecting members (2070, 2080) and the like as shown in Figure 8a to 8e.

The plate 2020 is formed by bending a rectangular metal plate to have a cross-section of a "c" shape. In addition, the fluorescent lamp 2030 is mounted in the plate 2020, and usually two fluorescent lamps 2030 are mounted. And the end side of the plate 2020 is formed with a coupling groove 2021 for mounting the coupling protrusion 2048 of the connecting members (2070, 2080).

The connecting members 2070 and 2080 may include a first connecting member 2070 which allows the wire 2090 connected to the fluorescent lamp 2030 to be drawn out in parallel with the plate 2020, and perpendicularly to the plate 2020. It is divided into a second connecting member 2080 to be drawn out.

As shown in FIGS. 8B and 8C, the first connection member 2070 includes a first body 2710, a first connector 2720, a first bent portion 2730, and is injection molded by a synthetic resin. .

The second connection member 2080 illustrated in FIGS. 8D and 8E is formed of a second body 2810, a second connector 2820, and a second bent portion 2830, and the second body 2810 is A pair of second fluorescent lamp mounting holes 2811 on which the fluorescent lamp 2030 is seated is formed, and a coupling protrusion 2048 is formed at a side thereof to be seated in the coupling groove 2021 of the plate 2020, and the fluorescent lamp A second through hole through which the connection line 2031 of 2030 can penetrate is provided. A second terminal seating hole is formed in the second connector 2820, and a second insertion hole 814 through which the connecting line 2031 penetrates the second through hole is formed.

However, the light emitting unit according to the prior art has a problem in that the configuration is complicated and cannot be made compact. That is, in recent years, the liquid crystal display device is manufactured to have a very thin thickness, thereby making it slim. There is a problem in that the light emitting unit according to the prior art has a limitation in making it small.

Therefore, the present invention is invented to solve the problems as described above, the object of the present invention is to prevent the connection of fluorescent lamps and wires by soldering, can be assembled by a simple work process, in particular to simplify the configuration There is provided a light emitting unit mounted on a liquid crystal display device that can be manufactured.

The above object is achieved by the present invention, according to one aspect of the present invention, the light emitting unit mounted on the liquid crystal display device is a plate bent in a rectangular plate shape to form a "c" shape; and both ends of the power supply A connection line for supplying is formed, and a fluorescent lamp seated on the plate; and a connecting member seated at both ends of the plate to support the fluorescent lamp, and connecting an electric wire supplied from the outside with the connection wire. The connection member may include: a first connection member connecting the first wire to the connection line of one side of the fluorescent lamp; and a first wire drawn out of the first connection member to connect the connection wire and the second wire to the other side of the fluorescent lamp; A second connection member, the first connection member having one end of the fluorescent lamp inserted therein, and a connection line of the inserted fluorescent lamp is exposed; A first terminal terminal seated at the first connector and electrically connecting the connection line of the fluorescent lamp to an end of the first wire; And a first case supporting the first terminal terminal and fastened to the first connector, wherein the second connection member is inserted with the other end of the fluorescent lamp, and the connection line of the fluorescent lamp is exposed, and A second connector having a shape in which the first wire drawn out from the first connection member is seated; and a second terminal terminal seated in the second connector to electrically connect the connection line of the fluorescent lamp to an end of the second wire; And a second case fastened to the second connector in a shape of supporting the second terminal terminal on one side and supporting the first wire on the other side.

And the terminal terminal is formed by bending a metal piece of a predetermined thickness, a horizontal plate made of a horizontal; and a plurality of insertion plates bent downward by a predetermined length from the side of the horizontal plate; and the side plate bent upward from the horizontal plate ; And a plurality of winding plates formed to protrude a predetermined length from the side plate, such that a connection line of the fluorescent lamp is seated between the insertion plate and the insertion plate, and an end portion of the electric wire is seated in parallel with the side plate. The plate is wound while wrapping the wire.

In addition, the first connector is formed so that the connection line seating groove for the connection line of the fluorescent lamp is opened, the insertion groove for mounting a plurality of insertion plates formed in the terminal terminal on the side of the connection line seating groove. Formed on both side surfaces of the first connector and the second connector, respectively, and protrusions protruding outward from each other and corresponding sides of the first case and the second case fastened to the first connector and the second connector; It characterized in that the engaging grooves are respectively formed in which the engaging projection is inserted.

In the present invention, the first case includes a first plate having a first hole through which the first wire is formed; and a pair of pairs of protrusion grooves formed on both sides of the first plate and having a predetermined length downward. First compression plate; characterized in that formed integrally.

In the present invention, the second connector is formed so that the connection line seating groove to which the connection line of the fluorescent lamp is seated, and the side surface of the connection line seating groove is inserted into the plurality of side plates formed in the second terminal terminal A plurality of grooves are formed, and at one end, a wire seating groove in which the first wire is seated is formed.

In the present invention, the second case is a second hole through which the second wire is formed is formed a second flat plate is formed at the end of the wire insertion groove for seating the first wire; and the amount of the second flat plate The side surface protrudes a predetermined length to the lower side and a pair of second pressing plate that is formed with a locking groove; characterized in that formed integrally.

In addition, a portion of the side of the wire seating groove and the wire insertion groove is open shape, and when the wire seating groove and the wire insertion groove is stacked is characterized in that the openings are shifted from each other so as to close the side.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals will be used for the same parts throughout the drawings.

1 is a perspective view of a light emitting unit according to an embodiment of the present invention and Figure 2 is an exploded perspective view of the light emitting unit shown in FIG.

As shown in the figure, the light emitting unit according to the present invention shown by the reference numeral 10 is composed of a plate 11, a fluorescent lamp 12 and the connection member (100,200) and the like.

The plate 11 is formed by bending a rectangular metal plate to have a cross-section of the letter "c". In addition, the fluorescent lamp 30 is seated inside the plate 11, and usually two fluorescent lamps 12 are seated. In addition, a groove 53 on which the protrusions 51 of the connecting members 100 and 200 are seated is formed at the end side of the plate 11 so that the connecting members 100 and 200 are coupled to the plate 11. do.

The fluorescent lamp 12 is a Cold Cathode Fluorescent Lamp (CCFL), which has a long lifespan, low power consumption, and can be formed thinly.

The connecting members 100 and 200 may include a first connecting member 100 which allows the first wire 14 connected to the fluorescent lamp 12 to be drawn out in parallel with the plate 11, and perpendicularly to the plate 11. It is divided into a second connection member 200 to be drawn out.

Accordingly, as shown in FIG. 3, the light emitting unit 10 according to the present invention has a pair of fluorescent lamps 12 mounted on the plate 11, and both ends of the fluorescent lamps 12 are connected to the first connection member 100. ) And the first wire 14 which is fixed to the plate 11 by the second connection member 200 and drawn out from one end of the fluorescent lamp 12 along the rear or upper surface of the plate 11. The first wire 14 is vertically oriented together with the second wire 15 that is converged from the second connection member 200 and drawn from the other end of the fluorescent lamp 12 in the second connection member 200. Will be sent to.

The first connection member 100 will be described in detail with reference to FIGS. 4A to 4C. As shown in the drawing, the first connection member 100 is composed of a first connector 110, a first terminal terminal 130, a first case 150, and the like, and is injection molded by a synthetic resin.

The first connector 110 is seated on one end of the frame 11 by the protrusion 51 and the groove 53, and one end of the fluorescent lamp 12 is inserted into the first connector 110. And the connection line seating groove 21 is formed in order to expose the connection line 13 of the inserted fluorescent lamp 12 to the top. In addition, a plurality of '-' shaped insertion grooves 23 are formed at the edges of the openings in which the connection line seating grooves 21 are formed so that the first terminal terminals 130 to be described later are inserted firmly.

In addition, the first terminal terminal 130 is seated in the connection line seating groove 21. The first terminal terminal 130 is formed by cutting and bending a metal plate through which electricity is well communicated. As described above, the horizontal plate 31, the insertion plate 32, the side plate 33, and the winding plate 34 are formed.

The horizontal plate 31 is formed in a rectangular shape, a plurality of insertion plate 32 is bent in a predetermined length downward from the side of the horizontal plate 31 is formed. A side plate 33 is bent upward from the horizontal plate 31, and the side plate 33 is formed with a plurality of winding plates 34 formed to protrude a predetermined length in the horizontal direction.

Therefore, the first terminal terminal 130 is coupled to the first connector 110 by inserting the insertion plate 32 into the insertion groove 23. And the end of the first wire 14 is inserted into the winding plate 34 formed on the top. After the end of the first wire 14 is inserted as described above, the winding plate 34 is wound around the first wire 14 and fixed. Accordingly, the connection line 13 of the fluorescent lamp 12 is seated and electrically connected to the lower portion of the first terminal terminal 130, and the first wire 14 is fixed to the winding plate 34 by an upper portion thereof. To be electrically connected. The first terminal terminal 130 not only electrically connects the connection line 13 of the fluorescent lamp 12 and the first wire 14, but the first wire 14 is connected to the first connector 110. It also plays a role of fastening to).

The first case 150 has a function of more tightly coupling the exposed first terminal terminal 130 to the first connector 110, the cross section is formed of a "C" shape to the first connector ( The engaging protrusion 22 and the engaging groove 41 are coupled to the 110. That is, the first case 150 has a predetermined length downward at both sides of the first flat plate 151 and the first flat plate 151 in which the first hole 153 through which the first wire 14 passes is formed. It is produced by injection molding a synthetic resin in a shape in which a pair of first pressing plates 155 protruding and engaging grooves 41 are integrally formed. Accordingly, the first wire 14 electrically connected to the fluorescent lamp 12 by the first terminal terminal 130 passes through the first hole 153 of the first case 150.

The second connection member 200 will be described with reference to FIGS. 5A to 5C. The second connecting member 200 includes a second connector 210, a second terminal terminal 230, a second case 250, and the like, and the second connector 210 is the first connector 110. The wire seating groove 211 is additionally formed so that the first wire 14 which is similar in shape and withdrawn may be seated. The wire seating groove 211 penetrates up and down so that a portion of the side surface is opened so that the first wire 14 is seated along an open portion of the side surface. The connection line seating groove 21, the insertion groove 23, and the locking protrusion 22 are also formed in the second connector 210 in the same manner as the first connector 110.

The second terminal terminal 230 has the same shape as the first terminal terminal 130 and has the same function. Only the terminal seated on the first connecting member 100 is referred to as the first terminal terminal 130 and the terminal seated on the second connecting member 200 is distinguished as the second terminal terminal 230, and the horizontal plate ( 31), the insertion plate 32, the side plate 33, and the winding plate are comprised similarly.

The second case 250 also has a shape similar to that of the first case 150, in which the second flat plate 251, the second hole 253, and the second pressing plate 255 are formed to form the first case 150. The first flat plate 151, the first hole 153, and the first pressing plate 155 corresponding to each other. Grooves 257 are further formed. The wire insertion groove 257 is located in the upper portion of the wire seating groove 211 when the second case 250 is seated in the first connector 110, the side of the wire seating groove 211 The open portion formed and the open portion formed on the side of the wire insertion groove 257 are formed to be offset from each other, so that the first wire 14 seated when the second case 250 is coupled to the second connector 210. ) Is closed on the side so that it cannot escape.

Accordingly, one end of the fluorescent lamp 12 is connected to the first wire 14 by the first connection member 100 and the other end is connected to the second wire 15 by the second connection member 200. The first wire 14 drawn from the first connecting member 100 converges in the wire seating groove 211 of the second connecting member 200 to be drawn together with the second wire 15. do.

The present invention prevents the connection between the fluorescent lamp and the electric wire by soldering, and can be assembled by a simple working process.

What has been described above is only one embodiment for implementing the light emitting unit mounted on the liquid crystal display device according to the present invention, the present invention is not limited to the above embodiment, and the claims of the utility model registration claims below As described above, any person having ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention will have a technical idea of the present invention to the extent that various modifications can be made.

Claims (8)

A plate 11 that is bent into a rectangular plate and shaped into a "c" shape; and a connecting line 13 for supplying power to both ends is formed, and a fluorescent lamp 12 seated on the plate 11; And a connecting member seated at both ends of the plate 11 to support the fluorescent lamp 12 and connecting the wires 14 and 15 to which power is supplied from the outside and the connection line 13 to each other. In the light emitting unit mounted on, The connection members 100 and 200 may include a first connection member 100 connecting the connection line 13 on the one side of the fluorescent lamp 12 and the first wire 14; and the connection line on the other side of the fluorescent lamp 12 ( 13 and the second wire 15, and the first wire 14 drawn out of the first connection member 100 is formed of a second connection member 200 seated thereon, One end of the fluorescent lamp is inserted into the first connection member 100, and a first connector 110 having a shape in which the insertion line 13 of the fluorescent lamp is exposed is seated on the first connector 110 and the first connector 110. A first terminal terminal 130 electrically connecting the connection line 13 of the fluorescent lamp to an end of the first wire 14; And a first case 150 supporting the first terminal terminal 130 and fastened to the first connector 110. The second connection member 200 has the other end of the fluorescent lamp inserted therein, the insertion line 13 of the fluorescent lamp is exposed, and the first wire 14 drawn out of the first connection member 100 is exposed. A second terminal 210 having a shape of being seated; and a second terminal terminal which is seated at the second connector 210 and electrically connects the connection line 13 of the fluorescent lamp to the end of the second wire 15 ( 230); And a second case 250 fastened to the second connector 210 in a shape of supporting the second terminal terminal 230 on one side and supporting the first wire 14 on the other side. A light emitting unit mounted on the liquid crystal display device, characterized in that. The method of claim 1, wherein the terminal terminals 130 and 230 are formed by bending a metal piece of a predetermined thickness, the horizontal plate 31 is made of a horizontal; and a plurality of bent in a predetermined length downward from the side of the horizontal plate 31 Inserting plate 32 and the side plate 33 is bent upward from the horizontal plate; And a plurality of winding plates 34 formed to protrude a predetermined length from the side plate. The connection line 13 of the fluorescent lamp is seated between the insertion plate 32 and the insertion plate 32, and the wire ( 14 and 15 end portions are mounted in parallel with the side plate (33) so that the winding plate (34) is wrapped around the wire, the light emitting unit mounted on the liquid crystal display device. According to claim 1 or claim 2, wherein the first connector 110 is formed so that the connecting line seating groove 21, which is connected to the connecting line 13 of the fluorescent lamp is open to the top, the connecting line seating groove ( 21 is a light emitting unit mounted to the liquid crystal display device, characterized in that a plurality of insertion grooves (23) on which the plurality of insertion plates 32 formed in the terminal terminal 130 is seated. The method of claim 1, wherein both sides of the first connector 110 and the second connector 210 is formed with engaging projections 22 protruding to the outside, respectively, the first connector 110 and the first 2, the locking grooves 41 into which the locking protrusions 22 are inserted are formed at corresponding sides of the first case 150 and the second case 250 which are fastened to the connector 210, respectively. Light emitting unit mounted on display device. The first case 150 of claim 1 or 2, wherein the first case 150 comprises: a first flat plate 151 formed with a first hole 153 through which the first wire 14 passes; A light emitting unit mounted to the liquid crystal display device, characterized in that the two sides of the (151) protrude a predetermined length downward and a pair of first pressing plate 155, the engaging groove 41 is formed; According to claim 1, wherein the second connector 210 is formed so that the connecting line seating groove 21 on which the connecting line 13 of the fluorescent lamp is seated to open upward, the side of the connecting line seating groove 21 In the second terminal terminal 230, a plurality of insertion grooves 23 are formed in which the plurality of side plates 33 are formed, and at one end thereof, a wire seating groove 211 in which the first wire 14 is seated. A light emitting unit mounted on the liquid crystal display device, characterized in that is formed. The wire insertion groove 257 of claim 1, wherein the second case 250 is formed with a second hole 253 through which the second wire 15 penetrates, and an end of the first wire 14 is seated. A second flat plate 251 is formed; and a pair of second pressing plates 255 protruding a predetermined length downward from both sides of the second flat plate 251 and having a locking groove 41 formed therein; A light emitting unit mounted on a liquid crystal display device, characterized in that formed integrally. According to claim 6 or 7, wherein the wire seating groove 211 and a portion of the side of the wire insertion groove 257 is open shape, the wire mounting groove 211 and the wire insertion groove 257 The light emitting unit mounted on the liquid crystal display device, characterized in that when the lamination is formed so that the open portion is shifted to each other so that the side is closed.

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