KR20180060240A - Liquid crystal display device - Google Patents

Abstract

A liquid crystal display device according to the present application includes a backlight unit including a light source unit, a panel guide for supporting the edge of a liquid crystal display panel while covering the light source unit, and a back cover for supporting the backlight unit and the panel guide. The panel guide includes a panel support unit for supporting the edge of the liquid crystal display panel and a stopper which is provided on one side of the panel support unit covering the light source unit and covers a part of the outer lateral side of the back cover. Accordingly, the present invention can reduce a frame width of a part where the light source unit is arranged.

Description

[0001] LIQUID CRYSTAL DISPLAY DEVICE [0002]

This application relates to a liquid crystal display device.

2. Description of the Related Art Generally, a liquid crystal display device is a portable electronic device such as a smart phone, a smart watch, a watch phone, a wearable device, a tablet PC, Is widely used not only as a device but also as a display screen of various products such as a television, a notebook, a monitor, a camera, a camcorder, or a home appliance.

A conventional liquid crystal display device includes a liquid crystal display panel having a liquid crystal layer, a backlight unit for emitting light to the liquid crystal display panel, a panel guide for supporting the rear edge of the liquid crystal display panel, and a back cover Respectively. Here, the panel guide includes a guide side wall supported by the rear cover and a panel support portion protruding from the guide side wall to support the rear edge of the liquid crystal display panel. In such a conventional liquid crystal display device, an image is displayed on the liquid crystal display panel using light emitted from the backlight unit to the liquid crystal display panel.

However, in the conventional liquid crystal display device, the guide sidewalls of the panel guide are formed in the shape of a rectangular band and housed in the rear cover, thereby increasing the bezel width. Particularly, in the liquid crystal display device, There is a problem in that the side wall of the panel guide as well as the light source portion of the backlight unit are arranged side by side so as to have a relatively wide edge width.

Accordingly, there is a demand for a method for reducing the edge width of the liquid crystal display device in which the light source portion is disposed.

SUMMARY OF THE INVENTION The present invention provides a liquid crystal display device having a reduced width of a portion where a light source unit is disposed.

It is another object of the present invention to provide a liquid crystal display device capable of preventing a poor assembly caused during the assembly process of a panel guide.

According to an aspect of the present invention, there is provided a liquid crystal display device including a backlight unit including a light source unit, a panel guide for supporting an edge of the liquid crystal display panel while covering the light source unit, and a back cover for supporting the backlight unit and the panel guide. The panel guide includes a panel supporting portion for supporting the edge of the liquid crystal display panel and a stopper provided at one side of the panel supporting portion for covering the light source portion and covering a part of the outer surface of the rear cover.

The liquid crystal display device according to an example further includes a first engaging member provided on the stopper, and a second engaging member provided on the rear cover directly facing the stopper and engaged with the first engaging member.

According to an aspect of the present invention, there is provided a liquid crystal display device in which a frame width of a portion where a light source is disposed is reduced, and a liquid crystal display device capable of preventing an assembly failure, .

In addition to the effects of the present application discussed above, other features and advantages of the present application will be set forth below, or may be apparent to those skilled in the art to which the present application belongs from such description and description.

1 is a plan view showing a liquid crystal display device according to an example of the present application.
2 is an exploded view of the liquid crystal display shown in Fig.
3 is a cross-sectional view taken along the line I-I 'shown in Fig.
Fig. 4 is a view showing the panel guide and the rear cover shown in Fig. 2. Fig.
5 is a plan view showing a liquid crystal display device according to an example of the present application.
6 is an exploded view of the liquid crystal display shown in Fig.
7 is a cross-sectional view taken along line II-II 'shown in FIG.
8 is a view showing the panel guide shown in Fig.
9 is a cross-sectional view taken along the line II-II 'shown in FIG.

Brief Description of the Drawings The advantages and features of the present application, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that this application is not limited to the examples disclosed herein, but may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein, To fully disclose the scope of the invention to those skilled in the art, and this application is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, and the like described in the drawings for describing an example of the present application are illustrative, and thus the present application is not limited thereto. Like reference numerals refer to like elements throughout the specification. In the description of the present application, a detailed description of known related arts will be omitted if it is determined that the gist of the present application may be unnecessarily obscured.

Where the terms "comprises," "having," "consisting of," and the like are used in this specification, other portions may be added as long as "only" is not used. Unless the context clearly dictates otherwise, including the plural unless the context clearly dictates otherwise.

In interpreting the constituent elements, it is construed to include the error range even if there is no separate description.

In the case of a description of the positional relationship, for example, if the positional relationship between two parts is described as 'on', 'on top', 'under', and 'next to' Or " direct " is not used, one or more other portions may be located between the two portions.

In the case of a description of a temporal relationship, for example, if the temporal relationship is described by 'after', 'after', 'after', 'before', etc., May not be continuous unless they are not used.

The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are used only to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the scope of the present application.

It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, May refer to any combination of items that may be presented from more than one.

Each of the features of the various embodiments of the present application may be combined or combined with each other partially or entirely, technically various interlocking and driving are possible, and the examples may be independently performed with respect to each other, .

Hereinafter, preferred embodiments of the liquid crystal display according to the present application will be described in detail with reference to the accompanying drawings. In adding reference numerals to the constituent elements of the drawings, the same constituent elements may have the same sign as possible even if they are displayed on different drawings

FIG. 1 is a plan view showing a liquid crystal display device according to one example of the present application, FIG. 2 is an exploded view of the liquid crystal display device shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line I-I 'shown in FIG.

1 to 3, a liquid crystal display device according to an exemplary embodiment includes a liquid crystal display panel 100, a panel driving circuit 200, a backlight unit 300, a panel guide 500, and a rear cover 700 .

The liquid crystal display panel 100 displays an image using light emitted from the backlight unit 300. The liquid crystal display panel 100 includes a lower substrate 110, an upper substrate 130, (150), and an upper polarizing member (170).

The lower substrate 110 is a thin film transistor array substrate, and includes a pixel array having a plurality of pixels formed in each pixel region intersecting with a plurality of gate lines and a plurality of data lines. Each of the plurality of pixels includes a thin film transistor connected to the gate line and the data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode and supplied with a common voltage.

A pad portion connected to each signal line is provided at one side edge portion of the lower substrate 110, and the pad portion is connected to the panel driving circuit 200.

The upper substrate 130 is a color filter array substrate, and includes a pixel defining pattern defining an opening region overlapping each pixel region formed in the lower substrate 110, and a color filter layer formed in the opening region. The upper substrate 130 is adhered to the lower substrate 110 with a liquid crystal layer interposed therebetween by a sealant.

The liquid crystal layer is sandwiched between the lower substrate 110 and the upper substrate 130. The liquid crystal layer is a liquid crystal layer in which the arrangement direction of the liquid crystal molecules is changed according to an electric field formed by the data voltage applied to the pixel electrode and the common voltage, Lt; / RTI >

The lower polarizing member 150 is attached to a lower surface of the lower substrate 110 to polarize light incident from the backlight unit 300 to a first polarization axis and irradiate the lower substrate 110.

The upper polarizing member 170 is attached to the upper surface of the upper substrate 130 to transmit the upper substrate 130 and polarize light emitted to the outside.

The liquid crystal display panel 100 displays an image according to the light transmitted through the liquid crystal layer by driving the liquid crystal layer according to an electric field formed for each pixel by a data voltage and a common voltage applied to each pixel.

The panel driving circuit 200 displays the color image on the liquid crystal display panel 100 by driving each pixel of the liquid crystal display panel 100. The panel driving circuit 200 according to an example includes a plurality of data driving integrated circuits 210, a plurality of gate driving integrated circuits 230, a plurality of flexible circuit films 250, a printed circuit board 270, Circuit 290.

Each of the plurality of data driving ICs 210 is directly mounted on a lower edge of the lower substrate 110 and connected to a plurality of data lines and connected to a pad unit provided on the lower substrate 110. The plurality of data driving integrated circuits 210 receives the pixel data and the data control signal for each pixel supplied from the timing control circuit 290 and converts the pixel data for each pixel into analog data signals in accordance with the data control signal And supplies it to the corresponding data line.

Each of the plurality of gate driving integrated circuits 230 is directly mounted on the right edge of the lower substrate 110 and connected to a plurality of gate lines and connected to a pad portion provided on the lower substrate 110. The plurality of gate drive integrated circuits 230 receive the gate control signals supplied from the timing control circuit 290, generate gate pulses in accordance with the gate control signals, and supply them to the gate lines in a predetermined order.

Each of the plurality of flexible circuit films 250 is attached to a pad portion provided at a lower edge of the lower substrate 110. Each of the plurality of flexible circuit films 250 transfers the pixel data and the data control signal for each pixel supplied from the printed circuit board 270 to the plurality of data driving integrated circuits 210, To the plurality of gate drive integrated circuits (230).

The printed circuit board 270 is attached to each of the plurality of flexible circuit films 250. The printed circuit board 270 includes various power supply circuits, memory elements, and a timing control circuit 290 required to display an image on each pixel of the liquid crystal display panel 100.

The timing control circuit 290 is connected to the printed circuit board 270 and outputs digital image data input from the driving system in response to a timing synchronizing signal supplied from an external driving system to the pixel arrangement structure of the liquid crystal display panel 100 And supplies the pixel data for each pixel to the plurality of data driving ICs 210. The data driving IC 210 supplies the pixel data for each pixel. The timing control circuit 290 also generates a data control signal and a gate control signal based on the timing synchronization signal to control the driving timing of each of the plurality of data driving integrated circuits 210 and the plurality of gate driving integrated circuits 230 .

Alternatively, each of the plurality of data driving integrated circuits 210 may be mounted on the plurality of flexible circuit films 250 without being mounted on the lower substrate 110. In addition, each of the plurality of gate driving integrated circuits 230 may be replaced with a built-in gate driving circuit formed directly on the right edge of the lower substrate 110. The built-in gate driving circuit is formed on the right edge of the lower substrate 110 together with the thin film transistor manufacturing process of each pixel so as to be connected one to one with the plurality of gate lines. The built-in gate driving circuit generates a gate pulse in accordance with an input gate control signal and supplies the generated gate pulse to a gate line corresponding to a predetermined sequence.

The backlight unit 300 is disposed to overlap with the liquid crystal display panel 100 and irradiates light to the rear surface of the liquid crystal display panel 100. [ The backlight unit 300 includes a light guide plate 310, a light source unit 330, a light source housing 350, a reflection sheet 370, and an optical sheet unit 390.

The light guide plate 310 is disposed to overlap with the liquid crystal display panel 100 and includes a light incident surface provided on a sidewall of one side edge. The light guide plate 310 may include a light-transmitting plastic or glass material. The light guide plate 310 guides (or expels) the light incident from the light source 330 through the light incident surface toward the liquid crystal display panel 100.

The light source unit 330 emits light to the light incident surface provided on the light guide plate 310. The light source unit 330 includes a plurality of light emitting diode devices 333 mounted on the light source printed circuit board 331 and emitting light to the light incident surface of the light guide plate 310. Each of the plurality of light emitting diode elements 333 is mounted on the light source printed circuit board 331 so as to have a predetermined interval along the first direction X parallel to the longitudinal direction of the light entrance surface. At this time, the interval (or pitch) of the adjacent light emitting diode elements 333 may be set to a range in which hot spots are not generated around the light incident surface. Here, the light source printed circuit board 331 includes a flexible printed circuit cable.

The light source housing 350 is disposed to cover the light source unit 330. The light source housing 350 covers the light source 330, one side edge of the light guide plate 310 having the light entrance surface, and the light guide 330 and the light guide plate 310. The light source housing 350 reflects the incident light emitted from the light source 330 toward the light incident surface of the light guide plate 310, thereby preventing light loss and light leakage. The light source housing 350 according to an exemplary embodiment includes a plastic material of white color for reflection of incident light.

The light source housing 350 may be attached to the rear cover 700 and the panel guide 500 through an adhesive member 600 such as double-sided tape or adhesive. For example, one side and the other side edge of the light source housing 350 may be attached to the panel guide 500, and an intermediate portion between one side edge portion and the other side edge portion of the light source housing 350 may be attached to the rear cover 700, Lt; / RTI >

The reflective sheet 370 covers the rear surface of the light guide plate 310. The reflection sheet 370 reflects the light incident from the light guide plate 310 toward the light guide plate 310, thereby minimizing the loss of light.

The optical sheet unit 390 is disposed on the front surface of the light guide plate 310 to improve the brightness characteristics of light emitted from the light guide plate 310. The optical sheet portion 390 may include a lower diffusion sheet, a lower prism sheet, and an upper prism sheet. However, the present invention is not limited thereto, and a diffusion sheet, a prism sheet, a dual brightness en- a hancement film, and a lenticular sheet.

The panel guide 500 is housed in the rear cover 700 and supports the edge of the liquid crystal display panel 100 while covering the light source unit 330. The panel guide 500 includes a plastic material. The panel guide 500 according to one example includes a panel support 510, as shown in FIG.

The panel support 510 overlaps the rear edge of the liquid crystal display panel 100 and supports the rear edge of the liquid crystal display panel 100 through a panel support pad such as a cushion pad or double-sided tape. At this time, the panel supporting portion 510 supports the rear edge of the liquid crystal display panel 100 excluding the lower edge portion of the liquid crystal display panel 100.

The panel support 510 according to an exemplary embodiment includes first to fifth supports 511, 513, 515, 517, and 519.

Each of the first through fifth supporting portions 511, 513, 515, 517, and 519 has a predetermined length and overlaps the rear edge of the liquid crystal display panel 100.

The first support portion 511 supports the first rear edge (or the left rear edge) of the liquid crystal display panel 100.

The second support portion 513 supports a second rear edge (or right rear edge) parallel to the first rear edge of the liquid crystal display panel 100.

The third support portion 515 is connected to one end (or the upper end) of the first support portion 511 and one end (or the upper end) of the second support portion 513 and is connected to the third rear edge Or the upper rear edge). The first to third support portions 511, 513, and 515 are connected to each other so as to have a planar shape of "┏" shape.

The first to third supporting portions 511, 513, and 515 serve as a main supporting portion for supporting only the liquid crystal display panel 100.

The fourth support portion 517 is connected to the other end (or lower end) of the first support portion 511 so as to be parallel to the third support portion 515 and covers one side of the light source portion 330, 3 Supports one side (or left side) of the fourth rear edge (or lower rear edge) parallel to the rear edge. Here, the first supporting portion 511 and the fourth supporting portion 517 are connected to each other so as to have a "?" Shape in a plan view.

The fifth support portion 519 is connected to the other end (or lower end) of the second support portion 513 so as to be parallel to the third support portion 515 and covers the other side portion of the light source portion 330, And supports the other side (or right side) of the fourth rear edge. Here, the second support portion 513 and the fifth support portion 519 are connected to each other so as to have a "┛" shape in a plan view.

The fourth and fifth supporting portions 517 and 519 serve as auxiliary supporting portions for supporting the liquid crystal display panel 100 while covering the light source portion 330. More specifically, the auxiliary support is attached to the light source housing 350 via the adhesive member 600, and thus does not flow in the thickness direction of the liquid crystal display panel 100.

The panel guide 500 according to an exemplary embodiment further includes a guide sidewall 530 that is vertically coupled to the panel support 510 and surrounds each side of the liquid crystal display panel 100.

The guide sidewall 530 according to one example includes an upper guide sidewall 531 and a lower guide sidewall 533.

The upper guide sidewall 531 is perpendicular to the front edge of the panel support 510 and surrounds the respective sides of the liquid crystal display panel 100. That is, the upper guide sidewall 531 is provided perpendicular to the front edge of each of the first to fifth supporting portions 511, 513, 515, 517, 519, and a part of the lower side of the liquid crystal display panel 100 It covers each side except the rest. The upper guide sidewall 531 has a height corresponding to the thickness of the liquid crystal display panel 100.

The lower guide sidewall 531 is perpendicular to the rear edge of each of the first, second, and third support portions 510, 513, 515 and is supported by the rear cover 700, (510). The lower guide sidewall 533 may have a height corresponding to the total thickness of the light source unit 330 and the light source housing 350.

Each of the first to third support portions 511, 513 and 515 in the panel guide 500 according to an example has the upper guide side wall 531 and the lower guide side wall 533, Respectively. Each of the fourth and fifth support portions 517 and 519 has only a top guide sidewall 531 so as to have a cross section of "┗" shape.

The panel guide 500 according to an exemplary embodiment has a shape in which one side is open so as not to cover the remaining portion except the one side portion and the other side portion of the light source portion 330 so that the edge width of the portion where the light source portion 330 is disposed . That is, since the panel guide 500 does not have the lower guide sidewall disposed between the rear cover 700 and the light source unit 330 so as to cover the side surface of the light source unit 330, the panel guide 500 has the edge width of the portion where the light source unit 330 is disposed .

The rear cover 700 supports the backlight unit 300 and the panel guide 500. The rear cover 700 may be made of a metal material or a plastic material as a rear surface case of the liquid crystal display device, but is preferably made of a metal material for ensuring rigidity of the liquid crystal display device and for radiating heat of the backlight unit 300.

The rear cover 700 according to an exemplary embodiment includes a cover frame 710 and a cover side wall 730 that provide a storage space, as shown in FIG.

The cover frame 710 supports the backlight unit 300 and supports a part of the panel guide 500. The cover frame 710 according to an exemplary embodiment has a rectangular band shape with a central opening 700a and includes a first bottom surface 711 and a second bottom surface 713.

The first bottom surface 711 is formed in a rectangular band shape to support the panel guide 500 and the light source unit 330 of the backlight unit 300. One part of the first bottom surface 711 directly supports the light source part 330 and the other part of the first bottom surface 711 directly supports the panel guide 500. For example, the first bottom surface 711 includes a left bottom surface, a right bottom surface, an upper bottom surface, and a lower bottom surface. The left bottom surface, the right bottom surface, and the upper bottom surface of the first bottom surface 711 support the lower guide sidewall 533 provided in the main support portion of the panel guide 500. The lower bottom surface of the first bottom surface 711 supports the light source unit 330.

The second bottom surface 713 is provided in a rectangular band shape having a first bottom surface 511 and a stepped central opening 700a. The second bottom surface 713 supports the reflective sheet 370 of the backlight unit 300 and can be stepped from the first bottom surface 711 to have a height corresponding to the thickness of the reflective sheet 370 . This second bottom surface 513 increases the rigidity of the cover frame 710 by stepping away from the first bottom surface 511. That is, the rigidity of the cover frame 710 may be increased due to the bent portions of the first bottom surface 711 and the second bottom surface 713.

The cover sidewall 730 is provided at the edge of the cover frame 710 and surrounds the side surfaces of the light source unit 330 and the panel guide 500 of the backlight unit 300. That is, the cover side wall 730 is vertically bent from the cover frame 710 and covers the side surface of the light source part 330 and the side surface of the main support part constituting the panel guide 500. The cover sidewall 730 covers the side surface of the panel guide 500, which is thin in order to make it slim and lightweight, thereby preventing the panel guide 500 from being deformed.

The cover side wall 730 according to one example includes first to fourth bending sidewalls 731, 733, 735, and 737.

The first bending side wall 731 (or the first side wall) is bent from the first side (or left side) of the cover frame 710 to cover the first side (or left side) of the panel guide 500. That is, the first bending side wall 731 covers the outer sides of the first support portion 511 of the panel guide 500 and the upper guide sidewall 531 and the lower guide sidewall 533, respectively.

The second bending side wall 733 (or the second side wall) is bent from the second side (or right side) of the cover frame 710 to cover the second side (or right side) of the panel guide 500. That is, the second bending side wall 733 surrounds the second support portion 513 of the panel guide 500 and the outer side surfaces of the upper guide side wall 531 and the lower guide side wall 533, respectively.

The third bending side wall 735 (or the first side wall) is bent from the third side (or the upper side) of the cover frame 710 to cover the first long side (or the upper side) of the panel guide 500. That is, the third bending side wall 735 covers the outer sides of the third support portion 515 of the panel guide 500 and the upper guide side wall 531 and the lower guide side wall 533, respectively.

The fourth bending side wall 737 (or second side wall) is bent from the fourth side (or lower side) of the cover frame 710 to cover the light source unit 330 of the backlight unit 300. That is, the fourth bending side wall 737 surrounds each of the fourth and fifth support portions 517 and 519 of the panel guide 500 and the side surfaces of the upper guide side wall 531 and the light source portion 330 coupled to the fourth and fifth support portions 517 and 519, respectively.

Each of the first to third bending side walls 731, 733 and 735 has a hemming structure, i.e., an inner side wall vertically bent from the cover frame 710, And an outer sidewall bended from the inner sidewall to contact the outer sidewall (or inner sidewall).

In addition, the back cover 700 according to an exemplary embodiment further includes a bending cover portion 750 covering a part of the light source portion 330.

The bending cover portion 750 is bent to be parallel to the cover frame 710 from one side of the cover side wall 730, more specifically, from the top of the fourth bending side wall 737. The bending cover part 750 covers the light source part 330 disposed between the fourth bending side wall 737 and the light guide plate 310. More specifically, the bending cover portion 750 is bent between the fourth and fifth support portions 517 and 519 of the panel guide 500 to support the lower edge of the liquid crystal display panel 100 while supporting the light source housing 350 do. At this time, the front surface of the bending cover part 750 is arranged to face the liquid crystal display panel 100, and the lower edge of the liquid crystal display panel 100 is supported by the panel supporting pad such as a cushion pad or double- do. The rear surface of the bending cover part 750 is disposed to face the light source part 330 and coupled to the light source housing 350 by the adhesive member 600 to support the light source housing 350 covering the light source part 330 do. Each of the one side and the other side of the light source housing 350 which is not covered by the bending cover part 750 is joined to the auxiliary support part of the panel guide 500 by the adhesive member 600, The auxiliary support portion of the panel guide 500 not supported by the bending cover portion 700 and the bending cover portion 750 can be prevented from flowing in the thickness direction of the liquid crystal display panel 100. [

The bending cover part 750 is disposed between the fourth and fifth support parts 517 and 519 of the panel guide 500 to separate the fourth and fifth support parts 517 and 519. That is, the bending cover part 750 supports part of the auxiliary support part of the panel guide 500 supporting the liquid crystal display panel 100, which overlaps with the light source part 330, by supporting the liquid crystal display panel 100 which overlaps with the light source part 330 To be removed. The auxiliary support portion of the panel guide 500 having the fourth and fifth support portions 517 and 519 can be separated by the bending cover portion 750 and can be separated from the liquid crystal display panel 100 The part of the panel guide 500 which overlaps with the light source part 330 is removed, so that the edge width of the part where the light source part 330 is disposed can be reduced.

In addition, the rear cover 700 according to an exemplary embodiment further includes a first bracket 771 and a second bracket 773.

The first bracket 771 is bent in a direction opposite to the bending cover portion 750 from one side of the cover side wall 730, more specifically, from the upper portion of the fourth bending side wall 737. The first bracket 771 is provided on the fourth bending side wall 737 positioned between the first bending side wall 731 and the bending cover portion 750. The first bracket 771 may be engaged with a hinge provided on the main body of the notebook by a screw, but it is not limited thereto and may be coupled to a product cover covering the rear cover 700 by a screw. The first bracket 771 includes at least one screw through hole 771h through which the threaded portion of the screw passes.

The inner wall of the first bracket 771 directly faces the fourth support portion 517 of the panel guide 500 so that the fourth support portion 517 of the panel guide 500, And also prevents it from flowing outwardly of the fourth bending side wall 737. That is, one end of the fourth support part 517 is coupled to the first support part 511 of the panel guide 500, while the other end of the fourth support part 517 is simply attached to the light source housing 350 do. The other end of the fourth support part 517 is moved toward the outside of the fourth bending side wall 737 due to misalignment of the external force or the assembling position when the panel guide 500 is assembled to the rear cover 700, A crack is generated in the liquid crystal display panel 100 in accordance with the poor assembly of the liquid crystal display panel 100 or the interference of the panel guide 500. [ In this example, the inner wall of the first bracket 771 is disposed to face the fourth support portion 517 of the panel guide 500 in a side-by-side relationship to prevent the fourth support portion 517 from flowing.

The second bracket 773 is bent in a direction opposite to the bending cover portion 750 from one side of the cover side wall 730, more specifically, from the upper portion of the fourth bending side wall 737. The second bracket 773 is provided on the fourth bending side wall 737 positioned between the second bending side wall 733 and the bending cover portion 750 so as to be parallel to the first bracket 771. The second bracket 773 may be engaged with a hinge provided on the main body of the notebook by a screw like the first bracket 771. However, the second bracket 773 may be attached to the product cover covering the rear cover 700 by screws Can be combined. The second bracket 773 includes at least one screw through hole 773h through which the threaded portion of the screw passes.

The inner wall of the second bracket 773 directly faces the fifth support portion 519 of the panel guide 500 so that the fifth support portion 519 of the panel guide 500 without the lower guide sidewall And also prevents it from flowing outwardly of the fourth bending side wall 737.

The rear cover 700 may include a third bracket 775 provided on one side of the third bending side wall 735 so as to be parallel to the first bracket 771, And a fourth bracket 777 provided on the other side of the third bending side wall 735. Each of the third bracket 775 and the fourth bracket 777 has the same structure as the first bracket 771 and the second bracket 773 except that the third bracket 775 and the fourth bracket 777 are provided on the third bending side wall 735 , And a duplicate description thereof will be omitted.

Since the liquid crystal display panel 100 overlapping the light source unit 330 can be supported by the bending cover unit 750 so that the auxiliary support parts of the panel guide 500 can be completely removed, The bending cover portion 750 may be bent by bending the entire fourth bending sidewall 737 due to the limitation of the bending process in order to cover the first bending side wall 737 to cover the one side portion and the other side portion of the light source portion 330. However, Since the first bracket 771 and the second bracket 773 can not be provided from the fourth bending side wall 737 in the first bracket 771 and the second bracket 773, A separate bracket is required to be assembled to the fourth bending side wall 737. Therefore, in this example, the bending cover portion 750 is provided by bending a part of the fourth bending sidewall 737, and the one side portion and the other side portion of the light source portion 330, which is not covered by the bending cover portion 750, It is not necessary to provide a separate bracket for engaging with the hinge portion provided on the main body of the notebook by providing the auxiliary support portions, namely, the fourth and fifth support portions 517 and 519, (700).

The rear cover 700 may include a plurality of support brackets bent from one side of the cover frame 710 supporting the light source unit 330 to support the printed circuit board 270 of the panel drive circuit 200 791, 793). Each of the plurality of support brackets 791 and 793 is cut from one side of the cover frame 710 supporting the light source unit 330 and bent at least once toward the rear side of the printed circuit board 270, And is coupled to the printed circuit board 270 by a board fixing screw that passes through the printed circuit board 270. At this time, the printed circuit board 270 includes ground electrodes electrically connected to the plurality of support brackets 791 and 793, respectively. Accordingly, when the rear cover 700 is made of a metal material, the ground electrode provided on the printed circuit board 270 can be electrically grounded.

The liquid crystal display device according to the present example includes a front case covering the front edge of the liquid crystal display panel 100 except the display area, a pad part provided on the liquid crystal display panel 100, and a panel driving circuit 200 And a gap fill member disposed in a gap space between the front case and the lower substrate 110. [0031]

Since the panel guide 500 is not disposed between the light source unit 330 and the cover side wall 730, the width of a portion where the light source unit 330 is disposed can be reduced.

5 is an exploded view of the liquid crystal display device shown in FIG. 5, FIG. 7 is a cross-sectional view taken along the line II-II 'shown in FIG. 5, Fig. 8 is a view showing the panel guide shown in Fig. 6, in which a stopper is additionally provided to the panel guide in the liquid crystal display shown in Figs. Hereinafter, only the panel guide and the configuration related thereto will be described, and redundant description of the remaining configurations will be omitted.

5 to 8, in the liquid crystal display device according to the present example, the panel guide 500 includes a panel support portion 510 and a stopper 550.

As described above, the panel support portion 510 includes the first to fifth support portions 511, 513, 515, 517, and 519, and a duplicate description thereof will be omitted.

The stopper 550 is provided on one side of the panel supporting part 510 covering the light source part 330 of the backlight unit 300 and covers a part of the outer side surface of the rear cover 700 to cover the panel supporting part 510 To the center of the liquid crystal display device. Specifically, the stopper 550 according to an exemplary embodiment of the present invention includes the auxiliary support portion of the panel guide 500, that is, the fourth and fifth portions of the panel guide 500 to cover a part of the outer side surface of the cover side wall 730 provided on the rear cover 700. [ And is projected from one side of each of the fifth support portions 517 and 519. In other words, the stopper 550 according to an example is provided at the ends of the fourth and fifth support portions 517 and 519 of the panel guide 500 adjacent to the bending cover portion 750, respectively. The stopper 550 provided on the fourth support portion 517 is disposed between the bending cover portion 750 and the first bracket 771 and the stopper 550 provided on the fifth support portion 519 is disposed between the bending cover And is disposed between the first bracket 750 and the second bracket 773. Accordingly, although the stopper 550 is disposed on the outer surface of the rear cover 700, the width of the rim portion where the light source 330 is disposed is not affected.

The stopper 550 according to one example may have a cross-sectional shape when viewed from the side along the longitudinal direction of the light source part 330. [ That is, the stopper 550 includes a horizontal protrusion 551 projecting from the end of each of the fourth and fifth support portions 517 and 519 toward the outer periphery of the rear cover 700, And a vertical protrusion 553 protruding from the end of the horizontal ridge portion 551. In this case, The vertical protrusions 553 are formed on the cover sidewall 730, that is, the fourth bending sidewall 737, when the fourth and fifth support portions 517 and 519 respectively flow toward the center of the liquid crystal display panel 100. [ Thereby preventing the fourth and fifth support portions 517 and 519 from flowing toward the center of the liquid crystal display panel 100, respectively.

When the fourth and fifth support portions 517 and 519 can flow toward the center of the liquid crystal display panel 100, the fourth and fifth support portions 517 and 519 And 519 are moved toward the center of the liquid crystal display panel 100. When the liquid crystal display panel 100 is assembled in the flow state of the panel guide 500, A crack is generated in the liquid crystal display panel 100 due to interference between the liquid crystal display panel 100 and the panel guide 500. The stoppers 550 provided at the ends of the fourth and fifth support portions 517 and 519 of the panel guide 500 respectively hold the fourth and fifth support portions 517 and 519 in the liquid crystal display panel The liquid crystal display panel 100 is prevented from flowing in the direction of the center of the liquid crystal display panel 100, thereby preventing the panel guide 500 from being assembled poorly, .

Each of the fourth and fifth support portions 517 and 519 of the panel guide 500 may be moved toward the outer periphery of the rear cover 700. This is because the first and second brackets 571, 573). The fourth and fifth support portions 517 and 519 of the panel guide 500 are supported by the first and second brackets 571 and 573 as well as the stoppers 550 in both directions Flow is prevented at the source.

In addition, the liquid crystal display device according to the present example further includes a first engaging member 560 and a second engaging member 760, as shown in Fig.

The first engaging member 560 is provided on the stopper 550. That is, the first engaging member 560 is provided on the inner surface of the stopper 550 facing the cover side wall 730 of the rear cover 700. For example, the first engaging member 560 may be an engaging projection protruding from the inner surface of the stopper 550 so as to have a stepped surface and an inclined surface.

The second engaging member 760 is provided on the rear cover 700 directly facing the stopper 550 and is engaged with the first engaging member 560. That is, the second engaging member 760 is provided on the cover side wall 730 of the rear cover 700 directly facing the stopper 550. For example, the second engaging member 760 may be a fitting hole penetrating the cover side wall 730 so that the first engaging member 560 can be inserted.

The stopper 550 is bent in the direction of the outer periphery of the rear cover 700 by the contact between the inclined surface of the first engaging member 560 and the outer surface of the cover side wall 730 at the time of assembling the panel guide 500 The first engaging member 560 is inserted into the second engaging member 760 by an elastic restoring force. Accordingly, the second engaging member 760 restrains the stepped surface of the first engaging member 560, thereby preventing the upward movement of the panel guide 500.

In the liquid crystal display device according to the present embodiment as described above, the stopper 550 prevents the panel guide 500 from flowing, thereby preventing defective assembly caused during the assembly of the panel guide 500.

Meanwhile, the liquid crystal display device according to the present application can be applied to a portable electronic device, a television, a notebook, a monitor, a camera, a camcorder, or a home appliance. Here, the portable electronic device may be an electronic notebook, an electronic book, a portable multimedia player (PMP), a navigation device, a smart phone, a mobile phone, a personal computer, a smart watch, ), A wearable device, a mobile communication terminal, and the like.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be clear to those who have knowledge of. Therefore, the scope of the present application is to be defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present application.

100: liquid crystal display panel 200: panel drive circuit
300: backlight unit 310: light guide plate
330: light source part 350: light source housing
500: panel guide 510: panel support
530: Guide sidewall 550: Stopper
560: first coupling member 700: rear cover
710: cover frame 730: cover side wall
750: bending cover portion 760: second engagement member
771: first bracket 773: second bracket

Claims (12)

A backlight unit including a light source unit;
A liquid crystal display panel overlapping with the backlight unit;
A panel guide for supporting the edge of the liquid crystal display panel while covering the light source portion; And
And a back cover for supporting the backlight unit and the panel guide,
The panel guide
A panel supporting part for supporting an edge of the liquid crystal display panel; And
And a stopper which is provided at one side of the panel support portion covering the light source portion and covers a part of the outer surface of the rear cover. The method according to claim 1,
The panel-
A main supporter supporting only the liquid crystal display panel; And
And an auxiliary supporting portion for supporting the liquid crystal display panel while covering the light source portion,
And the stopper protrudes from one side of the auxiliary support portion so as to cover a part of the outer side surface of the rear side wall. 3. The method of claim 2,
The back cover
A cover frame for supporting the backlight unit; And
And a cover side wall provided at an edge of the cover frame,
Wherein the cover side wall surrounds the side surface of the light source unit and the side surface of the main support unit. The method of claim 3,
The rear cover further includes a bending cover portion that is bent from one side of a side wall of the cover, which is parallel to the light source portion, to cover the light source portion,
And the auxiliary support portion is separated by the bending cover portion. 5. The method of claim 4,
And a light source housing attached to the bending cover portion to cover the light source portion,
And the auxiliary support is attached to the light source housing. The method according to claim 1,
The panel-
A first supporting part for supporting a first rear edge of the liquid crystal display panel;
A second support portion supporting a second rear edge parallel to a second rear edge of the liquid crystal display panel;
A third support part connected to one end of the first support part and one end of the second support part and supporting a third rear edge of the liquid crystal display panel;
A fourth support portion connected to the other end of the first support portion to be parallel to the third support portion and supporting one side of a fourth rear edge parallel to a third rear edge of the liquid crystal display panel while covering one side of the light source portion; And
And a fifth support portion connected to the other end of the second support portion so as to be parallel to the third support portion and supporting the other side portion of the fourth rear edge of the liquid crystal display panel while covering the other side portion of the light source portion,
Wherein the stopper is provided at one side of each of the fourth support portion and the fifth support portion. The method according to claim 6,
The back cover
A cover frame for supporting a back edge of the backlight unit;
A cover side wall provided at an edge of the cover frame; And
And a bending cover part bent from one side of the side wall of the cover parallel to the light source part to between the fourth support part and the fifth support part to cover the light source part,
Wherein the stopper is provided at an end of each of the fourth support portion and the fifth support portion adjacent to the bending cover portion. 8. The method of claim 7,
And a light source housing attached to the bending cover portion to cover the light source portion,
And each of the fourth support portion and the fifth support portion is attached to the light source housing. 8. The method of claim 7,
The back cover
A first bracket bent from one side of the cover side wall in a direction opposite to the bending cover portion and surrounding a side surface of the fourth support portion; And
And a second bracket bent from one side of the side wall of the cover so as to be parallel to the first bracket and surrounding the side of the fifth support. 10. The method of claim 9,
A stopper provided on the fourth support portion is disposed between the first bracket and the bending cover portion,
And a stopper provided on the fifth support portion is disposed between the second bracket and the bending cover portion. 11. The method according to any one of claims 1 to 10,
Wherein the stopper has a cross-sectional shape when viewed from the side. 11. The method according to any one of claims 1 to 10,
A first engaging member provided on the stopper; And
And a second engaging member provided on a rear cover directly opposite to the stopper and engaging with the first engaging member.

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