KR20050013377A - Liquid crystal display device - Google Patents

Abstract

PURPOSE: An LCD(Liquid Crystal Display) is provide to slim a region where an image is not displayed by reducing thickness and width of an edge part. CONSTITUTION: A lamp assembly(200) includes a lamp(210) for generating light that passes through liquid crystal and a lamp wire(240) electrically connected to the lamp. An acceptance container(300) includes side walls(320) placed so as to form acceptance space at an edge of a bottom surface and a wire fixing part(340) which is placed at the outside surfaces of the side walls and fixes the lamp wire. The wire fixing part includes a wire accepting groove(342) and a wire holder(345). The wire accepting groove is extended to a part where the bottom surface meets an outside surface of the acceptance container.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device in which the size of an area in which a screen is not displayed is slimmed to greatly improve appearance quality.

In general, liquid crystals (LC) have an optical characteristic that changes the transmittance of light in response to an electrical characteristic and an arrangement in which an array is changed in response to an intensity and a direction of an electric field.

The liquid crystal display displays an image including information in liquid crystal. The liquid crystal display device includes a liquid crystal display panel (hereinafter, referred to as an LCD panel) and a back light assembly to change the arrangement of liquid crystals.

The liquid crystal display panel includes a thin film transistor substrate (hereinafter, referred to as a TFT substrate), a liquid crystal, and a color filter substrate.

The backlight assembly includes a lamp assembly, a liquid crystal display panel and a receiving container for receiving the lamp assembly. The lamp assembly includes a lamp, a lamp cover surrounding the lamp, and a lamp wire for supplying driving power to the lamp. The lamp assembly is disposed inside the container, and the lamp wire is drawn from the inside of the container to the outer side of the container and connected to an inverter disposed on the back of the container.

In addition, a fixing protrusion for fixing the wire is formed on the path through which the wire passes among the outside of the storage container to prevent the lamp from being damaged due to the pulling of the wire.

However, the screen is not displayed due to the wire drawn out of the storage container and the fixing protrusion for fixing the wire, and the width of the edge portion of the top chassis is increased by the length of the wire diameter and the length of the fixing holder protruding. . When the fixing protrusion for fixing the wire is formed on the rear surface of the storage container, the thickness of the liquid crystal display device is increased by the protruding length of the fixing protrusion. As a result, it is difficult to reduce the size and thickness of the liquid crystal display.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to reduce the thickness and the width of the edge portion to provide a slimmer LCD.

1 is an exploded perspective view of a liquid crystal display according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the lamp assembly shown in FIG. 1. FIG.

3 is an enlarged view of a portion A of FIG. 1.

4 is a perspective view illustrating a rear surface of the first storage container, the second storage container, and the lamp assembly of FIG.

5 is an exploded perspective view of a liquid crystal display according to a second exemplary embodiment of the present invention.

6 is a perspective view illustrating a state in which a second storage container is accommodated in the first storage container of FIG. 5.

In order to realize the object of the present invention, the present invention provides a liquid crystal display panel for displaying an image by the liquid crystal, a lamp for generating light passing through the liquid crystal, a lamp assembly comprising a lamp wire electrically connected to the lamp and the first A first storage container including a bottom surface, first sidewalls arranged to form a storage space at an edge of the first bottom surface, and a wire fixing part disposed on an outer surface of the first sidewalls to fix the lamp wire; A liquid crystal display device is provided.

In addition, to achieve the object of the present invention, the present invention provides a liquid crystal display panel for displaying an image by the liquid crystal, a lamp assembly for generating light passing through the liquid crystal, a lamp assembly comprising a lamp wire electrically connected to the lamp, lamp assembly And a first accommodating container having a liquid crystal display panel, the first accommodating container having a first opening for discharging the lamp wire and a wire fixing part for fixing the lamp wire on a side surface corresponding to the lamp assembly, Provided is a liquid crystal display device including a second storage container having a second opening at a portion corresponding to the wire fixing portion.

According to the present invention, the outer side and the rear side of the outside of the storage container is recessed deeper than the diameter of the wire, the fixing portion having a height of less than the depression depth is formed in the recessed portion width of the edge portion of the liquid crystal display device and By reducing the thickness of the liquid crystal display device, the liquid crystal display device can be made slimmer.

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

Example 1

1 is an exploded perspective view of a liquid crystal display according to a first embodiment of the present invention.

Referring to FIG. 1, the liquid crystal display device 800 includes a liquid crystal display panel assembly 100, a backlight assembly 600, and a chassis 700.

The liquid crystal display panel assembly 100 includes a liquid crystal display panel 110 and printed circuit boards 120 and 130.

The liquid crystal display panel 110 includes a TFT substrate 112, a liquid crystal 114, and a color filter substrate 116. The light passing through the backlight assembly 600 is changed into image light including information.

The printed circuit boards 120 and 130 are installed at edges of the liquid crystal display panel 110 and apply gate driving signals and data driving signals to the liquid crystal display panel 110 to control light transmittance of the liquid crystal.

The backlight assembly 600 includes a lamp assembly 200, a first storage container 300, a second storage container 400, and an optical member 500.

FIG. 2 is an exploded perspective view of the lamp assembly shown in FIG. 1. FIG.

1 and 2, the lamp assembly 200 includes a lamp 210, a lamp cover 220, a lamp holder 230, and a lamp wire 240.

The lamp 210 includes a lamp body 202, a first electrode 204, and a second electrode 206. The lamp body 202 has a tube shape of a glass material. A fluorescent layer is formed on an inner wall of the lamp body 202, and at least one discharge gas of mercury, argon, neon, xenon, and krypton is injected into the lamp body 202. The first electrode 204 and the second electrode 206 are disposed in the lamp body 202 to apply a discharge voltage to the inside of the lamp body 202.

The lamp cover 220 emits light emitted radially from the lamp 210 in one direction. The lamp cover 220 is made of a metal having high light reflectance, for example, brass, and has a U-shaped cross section. The lamp 210 is disposed inside the lamp cover 220.

The lamp holder 230 is fitted to both ends of the lamp 210 to fix the lamp 210. The lamp 210 is fixed inside the lamp cover 220 by the lamp holder 230.

The lamp wire 240 is composed of a first lamp wire 242 and a second lamp wire 244. The first lamp wire 242 is connected to the first electrode 204 by solder, and the second lamp wire 244 is connected to the second electrode 206 by solder. The first lamp wire 242 is bent to the rear of the lamp cover 220 and merged with the second lamp wire 244 and then discharged to the outside of the first storage container 100.

3 is an enlarged view of a portion A of FIG. 1. 4 is a perspective view illustrating a rear surface of the first storage container, the second storage container, and the lamp assembly of FIG.

1, 3, and 4, the first storage container 300 includes a lower plate 310, a side wall 320, and a wire fixing part 340.

The lower plate 310 is made of synthetic resin or the like and has a flat plate shape. In this embodiment, the lower plate 310 preferably has a rectangular parallelepiped shape. In addition, an opening 313 is formed in the lower plate 310 to reduce weight and volume and to facilitate heat dissipation. In the present embodiment, one opening 313 is formed in the lower plate 310. Hereinafter, in this embodiment, the cut surface formed by the opening 313 formed in the lower plate 310 will be referred to as an inner surface 313a.

The side wall 320 extends in a direction perpendicular to the lower plate 310 along the edge of the lower plate 310. The storage space is formed by sidewalls 320 extending in a vertical direction from an edge of the lower plate 310 and the lower plate 310. A first slide opening 330 through which the lamp assembly 200 is introduced is connected to the storage space in the first sidewall 322 facing the second electrode 206 of the sidewall 320.

The wire fixing part 340 includes a wire receiving groove 342 and a wire holder 345. The wire receiving groove 342 extends from the outer surface of the first side wall 322 through which the lamp wire 240 passes to the inner surface 313a of the opening 313 along the outer surface of the lower plate 310. 342 is connected with the opening 330 for the first slide. The wire receiving groove 342 is formed deeper than the diameter of the portion 240a where the first lamp wire 242 and the second lamp wire 244 are combined into one, so that the first lamp wire 242 and the second lamp wire 244 are formed. Is prevented from protruding further than the first sidewall 322.

The wire holder 345 protrudes from the wire receiving groove 342 passing through the first side wall 322. The wire holder 345 grips the lamp wire 240 to prevent the lamp wire 240 from being broken or the lamp 210 being broken due to the pulling of the lamp wire 240. The wire holder 342 is composed of a first wire holder 346 and a second wire holder 348.

The first wire holder 346 is formed with two first protrusions 346a having a rod shape spaced apart from each other in a first direction with respect to the first side wall 322. Diameter of the portion 240a where the first lamp wire 242 and the second lamp wire 244 are joined between the first protrusions 346a due to the two first protrusions 346a spaced apart from each other in the first direction. A slightly larger insertion space 346b is formed. As shown in FIG. 4, the lamp wire 240a is fitted into and fixed to the insertion space 346a.

The second wire holder 348 is formed such that two second protrusions 348a having a rod shape are spaced apart from each other in a second direction with respect to the first side wall 322. Diameter of the portion 240a where the first lamp wire 242 and the second lamp wire 244 are joined between the second protrusions 348a due to the two second protrusions 348a spaced apart from each other in the second direction. It has a slightly larger insertion space 348b. As shown in FIG. 4, the lamp wire 240a fixed to the insertion space 346b of the first wire holder 346 is bent in the second direction and then inserted into the insertion space 348b of the second wire holder 348. Is fitted and fixed.

The protruding lengths of the first protrusion 346a and the second protrusion 348a are formed to have the same length as that of the wire receiving groove 342 in order to prevent the width of the edge portion of the liquid crystal display device 800 from increasing. It is formed shorter than the depth of the receiving groove (342).

The second accommodating container 400 includes a lower plate 410 and a sidewall 420 vertically extending from an edge of the lower plate 410 with a metal material. The lower plate 410 and the sidewalls 420 form a storage space. The lamp assembly 200, the optical member 500, the liquid crystal display panel assembly 100, and the like are accommodated in the storage space.

A second slide opening 430 having the same shape and size as the first slide opening 330 is formed at a portion of the sidewalls 420 of the second storage container 400 that corresponds to the first slide opening 330. . The first slide opening 330 and the second slide opening 430 are formed to easily remove or push the lamp assembly 200 from the storage space of the second container 400 when the lamp assembly 200 is replaced. do.

The second storage container 400 formed as described above is inserted into the storage space of the first storage container 300. The second accommodating container 400 is made of aluminum or aluminum alloy to quickly dissipate heat generated from the lamp assembly 200 disposed in the accommodating space to the outside of the accommodating space.

The optical member 500 is composed of a reflecting plate 510, a light guide plate 520, and an optical sheet 530.

The reflective plate 510 is disposed on the lower plate 410 of the second storage container 400, the light guide plate 520 is disposed on the upper surface of the reflective plate 510, and the optical sheet 530 is disposed on the upper surface of the light guide plate 520. Is placed.

The light guide plate 520 includes a plurality of side surfaces, a light reflection surface, and a light exit surface. The light reflection surface is disposed to face the lower plate 410 of the second storage container 400, and the light emission surface is disposed to face the light reflection surface. The light guide plate 520 uniformly changes the optical distribution of the light supplied from the lamp assembly 200 and changes the direction of the light.

The reflector 510 is interposed between the light reflection surface of the light guide plate 520 and the lower plate 410 of the second storage container 400 to reflect the light leaked from the light reflection surface of the light guide plate 520 back to the light guide plate 520. Let's do it.

The optical sheets 530 are disposed on the light exit surface of the light guide plate 520, and more uniformly change the optical distribution and the luminance distribution of the light emitted from the light guide plate 520. The optical sheets 530 may be used in combination of various kinds, such as a diffusion sheet, a prism sheet, a luminance compensation film, a viewing angle compensation film, or both.

The chassis 700 includes side plates 720 extending vertically from the edge of the upper plate 710 and the upper plate 710 toward the first receiving container 300. The upper plate 710 and the side walls 720 form a storage space.

A portion of the upper plate 710 corresponding to the display area of the liquid crystal display panel 110 is formed to expose the display area to the outside. The upper plate 710 presses the edge of the liquid crystal display panel 110 to prevent the liquid crystal display panel 110 from being separated from the outside and the fragile liquid crystal display panel assembly 700 from being damaged by an external impact. do.

Sidewalls 720 of the chassis 700 are fixed to the first storage container 300. In addition, a third slide opening 730 is formed at a sidewall 722 of the sidewalls 720 facing the first sidewall 322 of the first storage container 300 to facilitate replacement of the lamp assembly. The third slide opening 730 extends from a portion corresponding to the first slide opening 330 to a portion corresponding to the wire receiving groove 342.

As in the present embodiment, a wire receiving groove 342 having a depth greater than or equal to the diameter of the lamp wire 240 is formed on a path through which the lamp wire 240 passes among the outer wall and the rear surface of the first storage container 300, and the wire When the wire holder 340 having the protruding length of the wire storage groove 342 or less is formed in the storage groove 342 to fix the lamp wire 240 to the first storage container, the width and the liquid crystal of the edge of the chassis 700 are fixed. The height of the display device 800 is reduced.

Example 2

5 is an exploded perspective view of a liquid crystal display according to a second exemplary embodiment of the present invention. 6 is a perspective view illustrating a state in which a second storage container is accommodated in the first storage container of FIG. 5. The present embodiment is the same as the first embodiment except for the first storage container and the second storage container. Therefore, the same members are denoted by the same reference numerals as those in the first embodiment, and duplicated descriptions thereof will be omitted.

In the present embodiment, for convenience of description, the second embodiment in which the wire fixing part is formed will be described.

5 and 6, the second storage container 400 includes a lower plate 410 and a sidewall 420 vertically extending toward the chassis 800 from an edge of the lower plate 410. The lower plate 410 and the sidewalls 420 form a storage space. The lamp assembly 200, the optical member 500, the liquid crystal display panel assembly 100, and the like are accommodated in the storage space.

Of the side walls 420 of the second storage container 400, a slide opening 430 for introducing and discharging the lamp assembly 200 is connected to the storage space at the first side wall 422 facing the second electrode of the lamp. It is formed to be. The wire fixing part 440 for fixing the lamp wire 240a is formed on a path through which the lamp wire 240a passes among the outer surfaces of the first side wall 422. The wire fixing part 440 includes a first wire holder 450 and a second wire holder 460. The first wire holder 450 and the second wire holder 460 fix the lamp wire 240 to prevent the lamp wire 240 from breaking or the lamp 210 being broken due to the pulling of the lamp wire 240. do.

The first wire holder 450 is formed with two first protrusions 452 having a rod shape spaced apart from each other in a first direction with respect to the first side wall 422. The first lamp wire 242 and the second lamp wire 244 are slightly larger than the diameter of the combined portion 240a between the protrusions 452 due to the two first protrusions 452 spaced apart from each other in the first direction. Insertion space 454 is generated. The lamp wire 240a is fitted into the insertion space 454 to be fixed.

The second wire holder 460 is formed with two second protrusions 462 having a rod shape spaced apart from each other in a second direction with respect to the first side wall 422. Due to the two second protrusions 462 spaced apart from each other in the second direction, between the second protrusions 462, the first lamp wire 242 and the second lamp wire 244 are larger than the diameter of the combined portion 240a. A slightly larger insertion space 464 is generated. The lamp wire 240a fixed to the insertion space 454 of the first wire holder 450 is bent into the insertion space 464 of the second wire holder 460 after being bent in the second direction.

The protruding length of the first protrusion 452 and the second protrusion 462 is the sidewall thickness of the first storage container so that the first protrusion 452 and the second protrusion 462 do not protrude to the side wall of the first storage container, which will be described later. It is formed to the same length as or less than the side wall thickness of the first storage container.

The second accommodating container 400 is made of aluminum or aluminum alloy to quickly dissipate heat generated from the lamp assembly 200 disposed in the accommodating space to the outside of the accommodating space.

Referring back to FIG. 5, the first storage container 300 includes a lower plate 310 and a side wall 320.

The lower plate 310 is made of synthetic resin or the like and has a flat plate shape. In this embodiment, the lower plate 310 preferably has a rectangular parallelepiped shape. In addition, an opening 313 is formed in the lower plate 310 to reduce weight and volume and to facilitate heat dissipation. In the present embodiment, one opening 313 is formed in the lower plate 310. Hereinafter, in this embodiment, the cut surface formed by the opening 313 formed in the lower plate 310 will be referred to as an inner surface 313a.

The side wall 320 is vertically extended toward the second storage container from the edge of the lower plate 310. The lower plate 310 and the sidewalls 320 extending in the vertical direction from the edge of the lower plate 310 form a storage space. The second storage container 400 is inserted into the storage space.

Meanwhile, the opening 350 and the wire receiving groove 360 are formed in the first sidewall 322 facing the slide opening 430 and the wire fixing part 440 of the sidewall 320.

The opening 350 extends from an upper surface of the first sidewall 322 facing the optical member 500 to a predetermined portion in a direction in which the lower plate 340 is formed, such that the slide opening 430 and the first wire holder 450 are formed. ) And the second wire holder 460 to the outside of the first sidewall 322. The opening 350 facilitates replacement of the lamp assembly 200, and the first opening formed in the second storage container 400 when the second storage container 400 is inserted into the storage space of the first storage container 300. The wire holder 450 and the second wire holder 460 are prevented from being caught by the first sidewall 322 of the first storage container 300.

The wire receiving groove 360 extends from the portion corresponding to the second wire holder of the first side to the inner surface 313a of the opening 313 along a path through which the lamp wire 240 passes among the outer surfaces of the lower plate 310. It is formed. The wire receiving groove 360 is formed deeper than the diameter of the portion 240a where the first lamp wire 242 and the second lamp wire 244 are combined into one, so that the first lamp wire 242 and the second lamp wire 244 are formed. Is prevented from protruding into the first sidewall 322 and the lower plate 310.

As in this embodiment, the wire holder 440 having a protruding length less than or equal to the thickness of the side wall 320 of the first storage container 300 on a path through which the lamp wire 240 passes among the side walls of the second storage container 400. Forming the width decreases the width of the edge of the chassis 700 and the height of the liquid crystal display device 800.

As described in detail above, the width of the edge portion of the liquid crystal display device because the lamp wire does not protrude more than the outer surface of the storage container due to the lamp fixing portion formed on the path through which the lamp wire passes among the outer surfaces of the storage container. As the height of the liquid crystal display is reduced, the liquid crystal display can be made slimmer.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (16)

A liquid crystal display panel displaying an image by liquid crystal; A lamp assembly including a lamp generating light passing through the liquid crystal and a lamp wire electrically connected to the lamp; And A first bottom surface, first sidewalls disposed to form an accommodation space at an edge of the first bottom surface, and a first fixing part disposed on an outer surface of the first sidewalls to fix the lamp wire; Liquid crystal display device comprising a storage container. According to claim 1, wherein the wire fixing portion the outer surface and the outer surface and the first bottom surface meets to accommodate the lamp wire penetrated into the outer surface of the first storage container in the first storage container. A wire receiving groove extending to the portion; And And a wire holder protruding from the bottom surface of the wire receiving groove to fix the lamp wire. The liquid crystal display of claim 2, wherein a depth of the wire receiving groove is deeper than a diameter of the lamp wire. The liquid crystal display of claim 2, wherein the wire holder is formed of first protrusions protruding two side by side from the bottom surface to fix the lamp wire primarily. The liquid crystal device of claim 4, wherein the wire holder comprises two protrusions protruding side by side at a predetermined distance away from the first wire holder of the base to fix the lamp wire secondaryly. Display. 6. The method of claim 5, wherein the first protrusions are fixed to the lamp wire in a direction parallel to the bottom surface, the second protrusions are characterized in that to fix the lamp wire in a direction perpendicular to the bottom surface. Liquid crystal display device. 6. The liquid crystal display device according to claim 5, wherein the protruding lengths of the first and second protrusions are equal to or less than a depth of the wire receiving groove. The liquid crystal display device according to claim 1, wherein the wire fixing part has a first opening for coupling / disassembling the lamp assembly. The liquid crystal display of claim 1, wherein the first storage container further comprises a second storage container including a second bottom surface and second sidewalls disposed at an edge of the second bottom surface. The chassis of claim 1, wherein a chassis including a first surface for pressing and fixing an edge portion of the liquid crystal display panel and a second surface extending to face the sidewalls to the first surface is coupled to the first storage container. And a second opening is formed in a portion of the chassis that corresponds to the wire fixing portion. A liquid crystal display panel displaying an image by liquid crystal; A lamp assembly including a lamp generating light passing through the liquid crystal and a lamp wire electrically connected to the lamp; A first accommodating container accommodating the lamp assembly and the liquid crystal display panel and having a first opening for discharging the lamp wires and a wire fixing part for fixing the lamp wires on a side surface corresponding to the lamp assembly; And And a second storage container accommodating the first storage container and having a second opening at a portion corresponding to the wire fixing portion. 12. The liquid crystal display device according to claim 11, wherein the wire fixing part comprises first protrusions protruding two side by side from the side to fix the lamp wire primarily. 13. The liquid crystal display device according to claim 12, wherein the first protrusions are part of the bent side. The method of claim 12, wherein the wire holding portion is characterized in that the second projections are arranged in two side by side spaced apart from the first projections of the first projections of the two sides for fixing the lamp wire secondary. LCD display device. 13. The liquid crystal display device according to claim 12, wherein the second protrusions are part of the bent side. The liquid crystal display of claim 15, wherein the first protrusions are arranged in a direction perpendicular to the bottom surface, and the second protrusions are arranged in a direction parallel to the bottom surface.