KR100644821B1 - Moldframe assembly for liquid crystal display device and liquid crystal display device using the same and method for assembling thereof - Google Patents

Abstract

The present invention relates to a storage container assembly for a liquid crystal display device formed by assembling a plurality of unit storage containers in which a lamp unit is integrally provided. According to the present invention, at least two or more storage containers in which a display unit and a brightness enhancement unit are accommodated are provided. After the separation, the brightness enhancing unit is inserted and fixed to a part of the storage container, and then the remaining storage containers are assembled into the storage container combined with the brightness improving unit to form the storage container assembly, and the display unit is assembled to the storage container assembly. It is possible to securely fix the luminance enhancement unit without using the bottom chassis, which is essential for fixing some of the components of the enhancement unit, as well as simplify the LCD display assembly process and prevent production cost increase due to the bottom chassis.

Separate storage container, liquid crystal display device

Description

Storage container assembly for liquid crystal display device, liquid crystal display device and assembly method thereof [Moldframe assembly for liquid crystal display device and liquid crystal display device using the same and method for assembling

1 is a cross-sectional view of a conventional liquid crystal display device.

2 is an exploded perspective view of a liquid crystal display device according to the present invention;

Figure 3 is a partially exploded perspective view of the storage container assembly according to the present invention.

Figure 4 is an assembled view of the storage container assembly of Figure 3 assembled.

Figure 5 is a partially cut perspective view showing a light guide plate and a reflecting plate coupled to a portion of the storage container assembly according to the present invention.

6 is a cross-sectional view for explaining a lamp unit according to the present invention.

7 is a cross-sectional view taken along the line A-A of FIG.

The present invention relates to an accommodating container assembly for a liquid crystal display device, and more particularly, to an accommodating container assembly for a liquid crystal display device formed by assembling a plurality of unit accommodating containers in which a lamp unit is integrally installed.

The present invention also relates to a liquid crystal display device in which a light guide plate is fitted to a storage container assembly for a liquid crystal display device such that the light guide plate is firmly fixed by the storage container assembly for a liquid crystal display device without a separate component.

In addition, the present invention after coupling the lamp unit to the plurality of storage container module, the light guide plate is coupled to the storage container module and seated on the top of the light guide plate, the liquid crystal display device to the display unit and the chassis to be assembled on the top of the sheet It relates to the assembly method of.

Recently, the information processing equipment has been rapidly developed with the trend of various forms, various functions, and faster information processing speed, and is rapidly progressing to the development of a technology for processing massive information in a very short time and transmitting the processed information to a remote place. It is a trend.

Since the information processed by the information processing device performing such a unique function is in the form of an electrical signal, the display device acts as an interface so that the user can visually check the information in the form of an electrical signal in order to obtain information processed by the information processing device. Need.

In particular, recently, the development of a liquid crystal display device having various advantages such as light weight, small size, full color, and high resolution compared to a CRT display device, which is a representative display device, has been steadily developed. The use area and the spread of monitors, home wall-mounted televisions, and display devices of other information processing apparatuses are greatly increased.

As shown in FIG. 1, the conventional liquid crystal display device 100 having such a function and role includes a housing housing the display unit 10, the backlight assembly 20, the display unit 10, and the backlight assembly 20. Bottom installed in the container 30, the chassis 40 to prevent the display unit 10 from being separated from the container 30, the backlight assembly 20 is firmly fixed to the designated position without shaking. It consists of the chassis 50.

In this case, since the bottom chassis 50 must press the bottom surface of the backlight assembly 20 to fix the backlight assembly 20, the bottom chassis 50 should have a concave plate shape at the center thereof. As a result, the entire area of the liquid crystal display device 100 is increased.

In addition, there is a problem in that the total number of steps of assembling the liquid crystal display device 100 by the process for assembling the bottom chassis 50 increases, and the overall manufacturing cost of the liquid crystal display device 100 due to the bottom chassis 50 is increased. There is a problem.

In addition, the conventional container 30 of the liquid crystal display device 100 has a very thin thickness in order to accommodate the display unit 10 and the backlight assembly 20 and reduce the overall size of the liquid crystal display device 100. At the same time, when the shape is formed by a mold with four sides and one bottom surface to form a storage space, if the amount of shrinkage on the four sides and one bottom surface is changed, the warp container 30 is distorted. In order to produce one storage container 30, there is a problem that a lot of trial and error and manufacturing time is increased, and if the shape of some of the storage containers 30 is changed, the shape of the entire storage container 30 must be readjusted. As a result, it is difficult to improve the storage container 30.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to separate a plurality of storage containers and to assemble a plurality of storage containers while assembling the backlight assembly and the display unit, so that the backlight assembly can be assembled without a bottom chassis. It is to prevent shaking and position shift.

Another object of the present invention is to reduce the total number of assembly steps of the liquid crystal display device.

Still another object of the present invention is to prevent distortion of the entire storage container even when the shape of the changed part is changed when a portion of the storage container is changed.

Still other objects of the present invention will become more apparent from the following detailed description of the present invention.

The container assembly for a liquid crystal display device according to the present invention for realizing the objects of the present invention is combined with the end of the first storage container module and the first storage container module, the lamp unit is accommodated, the display unit and the light supply module It includes a second container module for providing a storage space to be accommodated.

In addition, the liquid crystal display according to the present invention includes a display unit for selectively controlling light to display an image, a light supply module including a light guide means for guiding light to be supplied to the display unit, and a side surface of the light guide means. A storage container including a first storage container module that is fitted to provide light to the light guiding means and simultaneously supports a portion of the display unit, and a second storage module that is coupled to the first storage module and supports the remaining portion of the display unit. The assembly and one side press the upper surface of the display unit and the other side includes a chassis coupled to the storage container assembly.

In addition, the method of assembling the liquid crystal display device according to the present invention couples the first storage container module for supporting a part of the display unit for controlling the light to display an image, coupled to both opposite ends of the light guiding means, and the first storage container module. To assemble the container assembly by combining the second container module supporting the remaining portion of the display unit, seating the sheets on the upper surface of the container assembly, and seating the display unit on the upper surface of the sheets, Assemble the container assembly by chassis.

Hereinafter, a storage container assembly for a liquid crystal display according to the present invention, a liquid crystal display using the same, and an assembly method thereof will be described with reference to the accompanying drawings.

2 is an exploded perspective view of the liquid crystal display according to the present invention.

Referring to the accompanying drawings, the liquid crystal display device 800 according to the present invention is generally composed of a case 200 and a liquid crystal display module 700 composed of a front case 210 and a rear case 220.

The liquid crystal display module 700 is composed of the chassis 300, the display unit 400, the light supply module 500, and the storage container assembly 600 again.

As shown in FIG. 2 or FIG. 3, the storage container assembly 600 includes four unit storage containers, and two of the four storage containers may include the first storage module 650. This will be defined, and the remaining two will be defined as a second container module 680.

The first container module 650 and the second container module 680 are shown in more detail in FIG. 3, and FIG. 3 is one of the two first container modules 650 and the second container. It is a perspective view showing the configuration and coupling relationship of any one of the modules 680.

More specifically, the first storage container module 650 is composed of the first storage container 610 and the lamp unit 620 again.

The first accommodating container 610 has a cube-shaped first sidewall 630 having a predetermined length, and a second sidewall 640 formed at a right angle at one end of the first sidewall 630 in a cube-shaped rod shape having a predetermined length. ), A third sidewall (not shown) and a first sidewall 630 and a second sidewall formed at a right angle to face the first sidewall 630 at the other end of the second sidewall 640 in the shape of a cube rod having a predetermined length. 640, a bottom plate 645 formed at the bottom of the third sidewall.

In this case, a printed circuit board accommodating groove (not shown) in which the printed circuit board is accommodated is formed on a rear surface of the bottom plate 645 of the first accommodating container 610.

On the other hand, the inner side of the second side wall 640 of the first storage container 610 is a lamp unit accommodating groove so that the storage space is formed to accommodate the lamp unit to be described later inward from the surface of the second side wall 640 ( 642 is formed, and a plurality of protrusions are formed on the upper surface of the second sidewall 640 in a state in which the display unit position limiting protrusions 643 are spaced apart by a predetermined interval so that the display unit 400 to be described later is installed.

On the other hand, the first side wall 630 formed at both ends of the second side wall 640, the end of the third side wall (not shown), the two coupling holes 632, 634 through the upper surface and the lower surface are installed so as to be spaced apart from each other by a predetermined interval Bars and two coupling holes 632 and 634 are to be coupled to the second storage container module 680 to be described later.

In addition, the first side wall 630 and a predetermined length spaced apart from the coupling holes 632 and 634 of the third side wall (not shown) protrude a predetermined length from the side surfaces of the first side wall 630 and the third side wall (not shown). The protrusion 636 is formed and at least one coupling hole 636a is formed through the upper and lower surfaces of the protrusion 636.

The coupling hole 636a is formed to mount the first storage container 610 on the rear case 220.

The lamp unit is coupled to the first storage container 610 configured as described above to form a first storage container module 650.

As shown in FIG. 6 or 7, the lamp unit may again include a cold cathode ray tube lamp 624, a lamp cover 622 surrounding the lamp 624, a hot electrode, a cold electrode, and one end of the cold cathode ray tube lamp 624. Is connected, and the other end is composed of a power supply line (not shown) coupled to an inverter (not shown).

The lamp unit 620 having the above configuration is coupled to the lamp unit accommodating groove 642 of the first accommodating container 610.

At this time, a portion of the upper surface of the second side wall 640 is drawn out through the opening 642a formed to communicate with the lamp unit accommodating groove 642 in order to connect the power supply line connected to the lamp unit 620 to the inverter (not shown). Then, it is inserted into the power supply line receiving groove 644 formed on the upper surface of the second side wall 640.

The light supply module 500 is installed in the first storage container module 650 having such a configuration.

The light supply module 500 is shown in more detail in FIG. 2, 5, or 7 to change the direction of the guide and the light generated from the lamp unit 620 coupled to the first container module 650. The plurality of diffusion sheets 520 seated on the light guide plate 510, the upper surface of the light guide plate 510 to scatter light, and the bottom surface of the light guide plate 520 to re-inject light leaked from the light guide plate 520. It is composed of a reflecting plate 530.

Opposite ends of the light guide plate 510 and the reflecting plate 530 in the state in which the light guide plate 510 and the reflecting plate 530 of the light supply module 500 having the above configuration are coupled to each other of the first storage container module 650. It is fitted into the lamp unit accommodating groove 642 and coupled.

When the light guide plate 510 and the reflecting plate 530 are inserted into the lamp unit accommodation grooves 642 of the two first container modules 650, the first container module 650 is connected to the second container module 680. It is assembled by the storage container assembly 600.

Referring to FIG. 3 to which the second container module 680 is attached, the second container module 680 has a cube rod shape, and the supporting plate 660 is formed to protrude so that the reflector plate 530 is seated on an inner surface thereof. do.

However, when the second container module 680 is coupled to the first container module 650 in this state, the first container module 650 and the second container module 680 overlap to accommodate The entire thickness of the container assembly 600 is bound to be very thick.

In order to overcome this problem, in the present invention, when the first storage container module 650 and the second storage container module 680 are combined, the overall height is the first sidewall 630, the third of the first storage container module 650. To be equal to the height of the side wall (not shown).

In order to implement this, an end portion of the second container module 680 is formed to have a very thin thickness than other portions of the second container module 680, and the first sidewall 630 of the first container module 650 may be formed. The thickness of the end portion of the third sidewall coupled to the second container module 680 has a thickness subtracted by the thickness of the second container module 680.

In this case, a coupling protrusion 670 is protruded in a portion corresponding to the coupling hole 632 of the first storage container module 650 among the ends of the second storage container module 680, and in another coupling hole 634. Fixing screws 675 for fixing the first container module 650 and the second container module 680 are combined.

Meanwhile, a protrusion 678 and a coupling hole 678a are also formed in the second storage container module 680 corresponding to the protrusion 636 of the first storage container module 650.

4 illustrates a state in which the first container module 650 and the second container module 680 are coupled as described above.

As described above, in the state in which the light supply module 500 is coupled to the two first storage module modules 650, the storage container assembly 600 in which the second storage container module 680 is coupled to the first storage container module 650 again. The diffusion sheet 520 is seated on the upper surface of the light guide plate 510 and the display unit 400 is seated on the upper surface of the diffusion sheet 520.

The display unit 400 is shown in more detail in FIG. 2 or 7 which is attached again. The liquid crystal display panel 410, the data driving signal applying time determining means 420, and the gate driving signal applying time determining means 430. ) And a printed circuit board 440.

The printed circuit board 440 may receive an image signal generated by an external information processing device (not shown), for example, a desktop computer or a portable computer and other information processing devices, and thus may be accommodated by the liquid crystal display device 800 according to the present invention. Suitable signals, i.e., gate driving signals, data driving signals, and a plurality of timing signals for causing them to be applied to the liquid crystal display panel 410 to be described later at the correct time.

The liquid crystal display panel 410 is composed of a TFT substrate 401, a color filter substrate 402 and a liquid crystal (not shown).

The TFT substrate 401 is formed on a transparent substrate, preferably a glass substrate, having a predetermined area, in which several tens to millions of thin film transistors (not shown) are formed in a matrix form by a semiconductor thin film process. Data lines (not shown) are connected to each other, and gate lines (not shown) are connected to the gate terminals.

Subsequently, a pixel electrode (not shown) made of indium tin oxide material, which is transparent and low in resistance, is formed on the drain terminal (not shown).

As the electrical signal is input to the data line and the data line, the thin film transistor is turned on to output an electrical signal to the drain terminal, and a predetermined power is applied to the pixel electrode.

On the other hand, the TFT substrate 401 having such a structure overlaps with the color filter substrate 402 facing each other. In the color filter substrate 402, an RGB pixel, which is a color pixel in which a predetermined color is expressed while light passes, is a semiconductor. A common electrode formed of a thin film process as well as an indium tin oxide material is formed on the front surface of the color filter substrate 402, and a predetermined power source is always applied to the common electrode.

When power is applied to the gate terminal and the source terminal formed in any one of the thin film transistors of the TFT substrate 401 and a predetermined power is applied to the pixel electrode, a predetermined electric field is formed between the pixel electrode and the common electrode.

Thus, in order to control the light by the electric field formed between the TFT substrate 401 and the pixel electrode, the arrangement angle is changed by the electric field between the pixel electrode of the TFT substrate 401 and the common electrode of the color filter substrate 402. The liquid crystal is injected to change the light transmittance according to the arrangement angle.

After the liquid crystal display panel 410 is manufactured as described above, in order to control the arrangement angle of the liquid crystals and the timing of the arrangement of the liquid crystals, that is, the arrangement of the liquid crystals, the driving signals are transmitted to the gate lines and the data lines in accordance with the processing and timing. The driving signal should be applied. To implement this, the data driving signal application timing determining means 420 is installed in the data line, and the gate driving signal application timing determining means 430 is installed in the gate line.

At this time, the data driving signal application timing determining means 420 or the gate driving signal application timing determining means 430 may be a tape carrier package (TCP) or a chip on flexible (COF) in one embodiment.

The data driving signal application timing determining unit 420 and the printed circuit board 440 of the display unit 400 configured as described above are bent to the outside of the first storage container module 650 and then the first storage container module 650 of the first storage container module 650. It is housed in a printed circuit board accommodating groove (not shown) formed at the bottom of the bottom plate 645.

Subsequently, the chassis 300 having a cramp shape is hooked to the storage container assembly 600 to manufacture the liquid crystal display module 700, and then the liquid crystal display module 700 is mounted on the case 200 and fixed to the liquid crystal display. Device 800 is fabricated.

As described in detail above, after separating at least two or more storage containers in which the display unit and the brightness enhancing unit are accommodated, and inserting and fixing the brightness enhancing unit to a part of the storage container, the remaining storage containers and the brightness enhancing unit By assembling the combined storage container to form the storage container assembly and assembling the display unit in the storage container assembly, the brightness enhancement unit is robust without using the bottom chassis, which is essential for fixing some of the components of the conventional brightness enhancement unit. In addition, the assembly process of the liquid crystal display device can be simplified, and the production cost can be prevented from rising due to the bottom chassis.

Moreover, when implementing this, it is necessary to assemble after separating the plurality of storage containers, which can prevent the bending and distortion of the storage container compared to when manufacturing the storage container in one piece, and improve any part of the storage container Alternatively, even if the shape is changed, the defects caused by the storage container can be actively prevented by improving or changing only the separate storage container.

In an exemplary embodiment of the present invention, an embodiment in which the first storage container module is installed at both ends of the light guide plate and the second storage container module is installed at the end of the first storage container module is illustrated. In another embodiment, two first storage container modules are manufactured in a "b-shape" shaped cramp shape, and after the lamp units are installed in each first storage module, the light guide plate is interposed. Even if two first storage container modules are stepped together, the same effects as those of the above-described embodiment may be obtained.

Claims (11)

A first accommodating container module accommodating the lamp unit; And a second storage container module coupled to an end of the first storage container module to provide a storage space in which the display unit and the light supply module are to be accommodated. The container assembly of claim 1, wherein the first container module is coupled to both ends of the light supply module, and the second container module is coupled to both ends of the first container module. According to claim 2, wherein the first container container module has a first length and a third side wall facing each other with a predetermined length, the second side wall connecting the first and third side walls and the first, second, third A bottom plate connecting the bottom of the side wall, wherein a lamp unit accommodating groove in which the lamp unit is mounted is formed inside the second side wall, and an end of the second accommodating container module is an end of the first accommodating container module. Storage container assembly for the liquid crystal display device and stepped. The liquid crystal display container assembly of claim 3, wherein a coupling hole is formed in one of the first and second storage container modules, and a coupling protrusion is formed in the other of the first and second storage container modules. 4. The storage container assembly of claim 3, wherein a printed circuit board accommodating groove in which the printed circuit board of the display unit is to be accommodated is formed on a rear surface of the bottom plate. delete A display unit for selectively controlling light to display an image; A light supply module including light guide means for guiding light to the display unit; A first container module fitted to a side surface of the light guiding means to supply light to the light guiding means and simultaneously supporting a part of the display unit, and being coupled to the first storage container module to support the remaining part of the display unit A storage container assembly including a second storage container module; One side presses the upper surface of the display unit and the other side comprises a chassis coupled to the storage container assembly. The first storage container module of claim 7, wherein the first storage container module is installed to face opposite ends of the light guiding means, and a lamp unit is installed inside the first storage container module, and the two first storage container facing each other. An end portion of the module is coupled to the second container module, respectively. The method of claim 7, wherein the end of the first container module and the end of the second container module is a stepped joint, coupled to any one of the end of the first container module and the end of the second container module. A ball is formed, and the other one of the liquid crystal display device having a coupling projection is fitted to the coupling hole. Coupling a first storage container module for supporting a portion of the display unit to control the light to display an image at opposite ends of the light guiding means; Assembling a container assembly by coupling the second container module supporting the remaining portion of the display unit to the first container module; Seating sheets on an upper surface of the container assembly and seating the display unit on an upper surface of the sheets; And assembling the display unit and the container assembly by a chassis. The method of assembling a liquid crystal display device according to claim 10, wherein when the first container module is coupled to the light guiding means, a lamp unit for supplying light to the light guiding means is assembled to the first container module. .

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