KR101616479B1

KR101616479B1 - Manufacturing method of lcd display panel having back light unit

Info

Publication number: KR101616479B1
Application number: KR1020150170096A
Authority: KR
Inventors: 엄상대; 이찬현
Original assignee: 림피아디스플레이(주)
Priority date: 2015-12-01
Filing date: 2015-12-01
Publication date: 2016-04-29

Abstract

Disclosed is a method for manufacturing an LCD display panel having a backlight unit. The disclosed method for manufacturing an LCD display panel having a backlight includes a back frame, a mold frame, a reflecting plate, a light guide plate, an optical sheet, an elastic frame, an LCD cell and a chassis frame, and comprises the steps of: a) manufacturing the mold frame consisting of an upper mold frame, a left mold frame, a right mold frame, and a lower mold frame by making a first profile member cut to correspond to the width and length of the back frame, thereby assembling the mold frame at edges of the back frame; b) arranging the reflecting plate, the light guide plate and the optical sheet on top of the mold frame to be supported; c) manufacturing the elastic frame consisting of an upper elastic frame, a left elastic frame, a right elastic frame, and a lower elastic frame by making a second profile member cut to correspond to the mold frame, thereby assembling the elastic frame on the mold frame; d) arranging the LCD cell in front of the optical sheet on top of the elastic frame to be supported; and e) manufacturing the chassis frame consisting of an upper chassis frame, a left chassis frame, a right chassis frame, and a lower chassis frame by making a third profile member cut to correspond to the width and length of the back frame, thereby covering edges of the LCD cell to fix the chassis frame on sides of the back frame. Therefore, the method for manufacturing an LCD display panel having a backlight unit of the present invention enables display panels to be easily manufactured in various sizes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing an LCD display panel having a backlight unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an LCD display panel having a backlight unit, more specifically, a mold frame and a chassis frame are manufactured in a profile shape and cut into a desired size, To a method of manufacturing an LCD display panel.

Generally, the development of LCD module in the information society is remarkably developing, and its role is also becoming important. Since the LCD module is a light-receiving device that can not self-emit light, a backlight unit that transmits light is needed in a transmissive LCD module.

In an LCD panel having such a backlight unit, a mold frame is provided in front of a back frame, components of a backlight unit including an LED module, a reflection plate, a light guide plate, and an optical sheet are installed in the mold frame, The cells are stacked and the frame of the LCD cell is finished with a chassis frame.

However, such a conventional LCD module is manufactured in the form of a rectangular frame having a standardized shape through a mold such as a mold frame and a chassis frame, and a problem that a mold frame having each size is required according to the size of an LCD module to be manufactured there was.

Accordingly, in order to manufacture LCD panels of various sizes, a mold must be provided for each size of a mold frame, and a mold frame manufactured for each size must be provided.

On the other hand, in the conventional LCD panel, an anti-reflection glass (AR glass) is laminated on an LCD cell to prevent light from being reflected. However, since the frame of the LCD cell is finished with the chassis frame, and the frame of the non-reflective glass is bonded to the front surface of the chassis frame, the non-reflective glass easily breaks even after a slight impact.

Korean Patent No. 10-0822052 Korean Patent No. 10-0304256 Korea Patent Publication No. 2003-0054856

It is an object of the present invention to provide a mold frame and a chassis frame which are shaped to meet the above-mentioned conventional problems, and to provide a mold frame and a chassis frame in a long profile shape, And a backlight unit for easily manufacturing the display panel in various sizes by using the same in a predetermined length.

According to an aspect of the present invention, there is provided a method of manufacturing an LCD display panel including a backlight unit including a back frame, a mold frame, a reflection plate, a light guide plate, an optical sheet, an elastic frame, The method comprising the steps of: a) cutting the first profile member to correspond to the horizontal and vertical sizes of the back frame, thereby forming the upper mold frame, the left mold frame, the right mold frame and the lower mold frame, And assembling the frame on the rim of the back frame; b) stacking the reflection plate, the light guide plate, and the optical sheet so as to be supported on the mold frame; c) cutting the second profile member to correspond to the mold frame to fabricate the elastic frame composed of the upper elastic bar, the left elastic bar, the right elastic bar, and the lower elastic bar, and assembling the elastic frame to the mold frame; d) stacking the LCD cell in front of the optical sheet so as to be supported by the elastic frame; e) The third profile member is cut to correspond to the horizontal and vertical sizes of the back frame, so that an ordinary chassis frame composed of an upper chassis, a left chassis, a right chassis, and a lower chassis is fabricated to cover the rim of the LCD cell, And a step of fixing to the side surface.

Wherein the first profile member is in the form of a rod having a predetermined length, and the first profile member includes a main plate having a vertical shape, a first fitting groove formed on the top of the main plate and formed toward the rear, And a support portion formed at a front side of the main plate, wherein the mold frame is assembled such that the first fitting groove is fitted to the rim of the back frame can do.

Wherein the LCD cell includes a plurality of flexible PCBs spaced apart from each other in the longitudinal direction at an upper end thereof, wherein the upper mold frame is formed with a plurality of seating grooves on which the plurality of flexible PCBs are seated, And the fitting portion of the first profile member is formed by cutting.

The second profile member is formed with a fitting protrusion which is fitted into the second fitting groove at the upper end of the rear surface, a supporting protrusion is formed at a lower portion of the fitting protrusion, and a step is formed at a lower part of the front surface, And the fitting protrusion may be assembled in a manner to be fitted in the second fitting groove of the mold frame.

The third profile member is made of a metal material or a synthetic resin material and has a rod shape having a cross section of "a", and the chassis frame covers the rim of the LCD cell and is fixed to the side of the back frame with a bolt can do.

The upper chassis, the lower chassis, the left chassis, and the right chassis may be configured such that cutting surfaces are machined to correspond to mutually adjacent ends.

Wherein an anti-reflective glass is optically bonded to the front surface of the LCD cell by optical silicon as a line work, and the chassis frame is fixed to the back frame with the edge of the anti- .

The elastic frame may be made of rubber, urethane, or silicone.

And guide projections are respectively formed on both sides of the back frame, first guide grooves are formed at positions corresponding to the guide protrusions on both sides of the reflection plate, and second guide grooves are formed on both sides of the guide plate, The reflector and the light guide plate may be configured such that the guide protrusion is inserted into the first guide groove and the second guide groove so that the reflection plate and the light guide plate are installed.

And a space holding plate for keeping the light guide plate in a flat state may be provided between the back frame and the reflection plate.

According to the above, by using the mold frame, the elastic frame, and the chassis frame formed by cutting the first profile member, the second profile member and the third profile member in a profile shape, the size of the product, that is, It is possible to manufacture a display panel of various sizes, and the manufacturing cost can be reduced compared with the conventional one.

In addition, since the present invention is a method in which an anti-reflective glass is directly optically bonded to a front surface of an LCD cell by a line operation, and the chassis frame is fixed to the back frame by wrapping the edge of the anti-reflective glass, Finally, compared to bonding the anti-reflective glass to the edge of the chassis, the reflective glass is not broken easily and the durability is improved.

In addition, the first profile member of the present invention, that is, the mold frame is made of aluminum material, the heat radiation efficiency is improved, and the optical sheet can be prevented from being deformed due to heat.

1 is a perspective view of an LCD display panel having a backlight unit according to an embodiment of the present invention,
FIG. 2 is a perspective view of the LCD display panel of FIG. 1 seen from the rear,
3 is an exploded perspective view of an LCD panel having a backlight unit according to an exemplary embodiment of the present invention,
4A is a perspective view showing a first profile member for manufacturing the mold frame of FIG. 3,
FIG. 4B is a perspective view showing the upper mold frame of FIG. 3, in which the first profile member shown in FIG. 4A is cut to a predetermined size and a plurality of seating grooves are formed,
Fig. 5 is an enlarged perspective view of the mold frame and the LED module in Fig. 3,
FIG. 6 is a perspective view showing a second profile member for manufacturing the elastic frame of FIG. 3,
FIG. 7 is a perspective view showing a third profile member for manufacturing the chassis frame of FIG. 3,
8 is a partially cutaway perspective view of the LCD panel having the backlight unit of FIG. 1 taken along line AA,
FIG. 9 is a partially cutaway perspective view of the LCD panel having the backlight unit of FIG. 1 along BB.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, a configuration of an LCD display panel having a backlight unit according to an embodiment of the present invention will be described with reference to the drawings.

1 to 3, the LCD display panel of the present invention includes a back frame 110, a mold frame 130, an LED module 140, a reflection plate 151, a light guide plate 153, an optical sheet 155, An elastic frame 160, an LCD cell 170, and a chassis frame 180.

The back frame 110 includes a rectangular base plate 111 and ribs 112 integrally formed on the rim of the base plate 111 and protruding from the base plate 111 in a forwardly biased manner 113).

Guide protrusions 114 protrude from both sides of the base plate 111 and through holes 115 are formed in the base plate 111. The through hole 115 may serve as a passage through which a signal line or a power source line connecting the LED module 140 and the LED driving board 191, which will be described later, passes.

3 to 5, the mold frame 130 is composed of four pieces consisting of an upper mold frame 131, a left mold frame 133, a right mold frame 135, and a lower mold frame 137 .

Each of the mold frames 131, 133, 135 and 137 may be formed by cutting a long first profile member 139 to correspond to the width and length of the back frame 110, as shown in FIG. 4A.

The first profile member 139 may be made of a metal material or a synthetic resin material and may preferably be made of aluminum. The first profile member 139 is formed of a body plate 139a, a body plate 139a, A fitting portion 139b having a first fitting groove 139ba formed to face the main plate 139a and a second fitting groove 139bb formed toward the front and a support portion 139c formed in front of the main plate 139a And the body plate 139a, the fitting portion 139b, and the support portion 139c are all formed integrally.

The upper mold frame 131, the left mold frame 133, the right mold frame 135 and the lower mold frame 137 formed by cutting the first profile member 139 are attached to the ribs 113 of the back frame 110 And is fixedly inserted. Specifically, the ribs 113 are inserted and fixed in the first fitting grooves 139ba.

4B, in the present invention, the upper mold frame 131 is formed by cutting the first profile member 139 to a length corresponding to the lateral length of the back frame 110, And a plurality of seating grooves 132 are formed by cutting the fitting portion 139b.

The left mold frame 133 and the right mold frame 135 are formed by cutting the first profile member 139 to a length corresponding to the longitudinal length of the back frame 110 and cutting the upper and lower ends of the respective main plate 139a Thereby forming cutting grooves 134 and 136. The guide protrusions 114 penetrate through the left mold frame 133 and the right mold frame 135 and are inserted into the ribs 113 of the back frame 110 so that the left mold frame 133 and the right mold frame 135, As shown in Fig. For this, the first profile member 139 is cut to fit the size of the back frame 110 to make the left mold frame 133 and the right mold frame 135, and the left mold frame 133 and the right mold 133, The through hole for the guide protrusion 114 to penetrate through the frame 135 can be perforated.

The lower mold frame 137 is formed by cutting the first profile member 139 to a length corresponding to the lateral length of the back frame 110 and forming a "C" shaped cutout groove 138 at both ends.

3, 5, 8 and 9, the LED module 140 has a bar shape in which a plurality of LEDs are arranged along the longitudinal direction, and the LED module 140 has a fitting portion 139b And is attached to the inner surface 139bc. In the present invention, the LED module 140 is composed of two LED modules 140, which are connected in a straight line. However, the LED modules 140 are not limited thereto and may be one or four or more LED modules depending on the size of the manufactured LED module.

The reflection plate 151, the light guide plate 153 and the three optical sheets 155 are formed in a rectangular plate shape corresponding to the size of the base plate 111 and are stacked and supported in order on the mold frame 130.

A first guide groove 152 and a second guide groove 153 are formed on both sides of the reflection plate 151 and the light guide plate 153 in a semicircular shape. In this case, when the reflector 151 is laminated so as to be supported on the mold frame 130, the installation position of the reflector 151 is easily determined by placing the guide protrusion 114 in the first guide groove 152 . Likewise, when the light guide plate 153 is laminated on the reflection plate 151, the installation position of the light guide plate 153 can be easily determined by placing the guide protrusion 114 in the second guide groove 154.

Meanwhile, the present invention includes three spacing plates 120. The gap holding plate 120 is fixed to the front surface of the base plate 111 at a predetermined interval to support the light guide plate 153 so as to maintain a flat state without sagging or bending with respect to the longitudinal direction of the light guide plate 153. Each of the spacing plates 120 is formed with a plurality of slit holes 121 for weight saving.

The elastic frame 160 is formed by cutting a second profile member 169 as shown in FIG. 5 so as to correspond to the mold frame 130, and is composed of a plurality of pieces and is fitted into the mold frame 130.

The elastic frame 160 is composed of a top elastic bar 161, a left elastic bar 162, a right elastic bar 163, and a bottom elastic bar 164.

In the present invention, each of the elastic frames 161, 162, 163, and 164 may be formed by cutting a second long profile member 169 corresponding to each of the mold frames 131, 133, 135, and 137 as shown in FIG.

The second profile member 169 is made of a material such as rubber, urethane, or silicone, which has higher ductility and elastic force than general plastic. 6, the second profile member 169 has a fitting protrusion 169a fitted to the second fitting groove 139bb at an upper portion of the rear surface thereof, and a support protrusion 169b is formed at a lower portion of the fitting protrusion 169a. And a step portion 169c is formed at the bottom of the front surface.

Referring to FIGS. 3, 6, 8 and 9, the upper elastic bar 161 has a length corresponding to the length of the plurality of fitting portions 139b of the upper mold frame 131 formed to be spaced apart from each other by the seating groove 132 And is formed by being cut into a plurality of pieces.

That is, the upper elastic bar 161 is composed of a plurality of members, and is fitted to the remaining portions except the portion where the plurality of seating grooves 132 are formed in the upper end of the upper mold frame 131. That is, the fitting projections 169a of the respective upper elastic bars 161 can be fitted into the second fitting grooves 139bb of the upper mold frame 131 in an interference fit manner.

At this time, the second fitting groove 139bb is inclined in such a manner that the upper and lower ends thereof are extended toward the rear, and the fitting protrusion 169a is extended in a rearward direction corresponding to the shape of the second fitting groove 139bb And the rear end of the fitting protrusion 169a is slightly press-fitted into the front end of the second fitting groove 139bb having a smaller vertical width when the fitting protrusion 169a is inserted into the second fitting groove 139bb And then inserted into the second fitting groove 139bb so that the fitting protrusion 169a is stably fixed to the second fitting groove 139bb.

The left elastic bar 162 and the right elastic bar 163 are cut to fit the length of the left mold frame 133 and the right mold frame 135 respectively and are formed by cutting the left elastic bar 162 and the right elastic bar 163, The fitting projections 169a of the left mold frame 133 and the right mold frame 135 are fitted into the second fitting grooves 139bb of the left mold frame 135 and the right mold frame 135, respectively.

The lower elastic bar 164 is cut to fit the length of the lower mold frame 137 so that the fitting protrusion 169a of the lower elastic bar 163 is inserted into the second fitting groove 139bb of the lower mold frame 137 And is installed by being fitted together.

The LCD cell 170 is formed in the shape of a rectangular plate according to the size of the back frame 110 and has a plurality of flexible PCBs 173 at the upper end thereof and a plurality of first PCBs 173 connecting the plurality of flexible PCBs 173 A connection substrate 175 and a second connection substrate 177 connecting the first connection substrates 175 may be provided.

At this time, the plurality of flexible PCBs 173 are formed to correspond to the number of the seating grooves 132 formed in the upper mold frame 131, and the left and right widths thereof are smaller than the seating grooves 132.

The LCD cell 170 is supported by the elastic frame 160 and is disposed to be disposed in front of the plurality of optical sheets 155. 9, a plurality of flexible PCBs 173 are provided to the rear of the back frame 110 so as to be seated in the seating grooves 132 in a state where the LCD cell 170 is supported by the elastic frame 160 do.

As shown in FIG. 3, the LCD cell 170 of the present invention is optically bonded with an anti-reflexive glass (AR glass) on the whole surface by optical silicon.

3, 7, 8 and 9, the chassis frame 180 includes four pieces of upper chassis 181, a left chassis 183, a right chassis 185, and a lower chassis 187 .

In the present invention, each of the chassis 181, 183, 185, and 187 may be formed by cutting the third profile member 189, which is made as shown in FIG. 7, to correspond to the width and length of the back frame 110.

The third profile member 189 may be made of a metal material and is formed in the shape of "a" in cross section.

The third profile member 189 is cut to the length of the rim of the back frame 110 to cut each of the chassis 181,183,185 and 187 so that the first and second profile members 181,183,185 and 187 are inclined The cut surfaces 188a and 188b are cut to form the chassis 181, 183, 185, and 187, respectively. As shown in FIG. 1, when the chassis 181, 183, 185, and 187 are fixed to the back frame 110, the cut surfaces 188a and 188b are formed as shown in FIG. The chassis 181, 183, 185, and 187 form a rectangular frame.

2 and 3, the LED driving board 191 and the LCD driving board 192 are installed on the rear surface of the back frame 110, that is, on the rear surface of the base plate 111. At this time, The LED driving board 191 may be installed to face the through hole 115 and the LCD driving board 192 may be connected to the first connecting board 175 through the third connecting board 193. [

The first board cover 195 and the second board cover 194 that cover and protect the LED driving board 191 and the LCD driving board 192 may be fixed to the back frame 110.

As described above, the mold frame 130, the elastic frame 160, and the chassis frame 180 are not integrally formed with a rectangular frame so as to be shaped. Since the second profile member 169 and the third profile member 189 are cut and used, it is possible to freely adjust the length according to a desired standard, thereby making it possible to easily manufacture products of various sizes.

Hereinafter, a method of manufacturing an LCD display panel having a backlight unit according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3, 8, and 9. FIG.

The upper mold frame 131, the left mold frame 133, the right mold frame 135 and the lower mold frame 138 are formed by cutting the first profile member 139 in accordance with the size of the back frame 110. At the upper end of the upper mold frame 131, a seating groove 132 may be formed at a predetermined interval along the longitudinal direction. In the upper and lower ends of the left mold frame 133 and the right mold frame 135, And the cut grooves 134 and 136 can be formed at both ends of the lower mold frame 137. [

The upper mold frame 131, the left mold frame 133, the right mold frame 135 and the lower mold frame 137 are fitted into the ribs 113 of the back frame 110, can do. At this time, the upper mold frame 131 and the lower mold frame 137 are inserted into the cut grooves 134 and 136 formed in the left mold frame 133 and the right mold frame 135, respectively.

Next, two LED modules 140 are attached to the inner surface 139bc of the fitting portion 139b of the lower mold frame 138 along the longitudinal direction with the heat radiation tape.

At this time, electric wires (not shown) connected from both sides of the two LED modules 140 can be pre-processed to a position where the LED driving mode 191 is to be installed through the "

Next, three interval holding plates 120 are arranged on the front surface of the base plate 111 at predetermined prices and fastened with bolts or the like.

At this time, the LED driving board 191 is bolted to one of the three spacing plates 120, and then the LED driving board 191 is fixed to the front surface of the base plate 111. In this case, the LED driving board 191 is installed on the rear side of the base plate 111 so as to face the through hole 115 of the base plate 111.

Next, the second board cover 194 is bolted to the rear surface of the base plate 111 so as to cover the LED driving board 191.

Next, the reflection plate 151 is placed in front of the main plate 139a of the mold frame 130 while being inserted into the guide protrusion 144 in the first guide groove 152.

8, the reflection plate 151 is supported by the support portion 139c formed in front of the main plate 139a, and is also supported by the spacer plate 120. As shown in FIG.

Next, the light guide plate 153 is stacked on the reflection plate 151 while being inserted into the guide protrusion 144 in the second guide groove 154. At this time, a tape for preventing light leakage (not shown) may be attached to the upper and both ends of the light guide plate 153, and then the reflection plate 151 may be provided.

Next, the three optical sheets 155 are placed on the light guide plate 153. At this time, the LED module 140 may be driven to perform the foreign object inspection.

Next, the second profile member 169 is cut to correspond to the size of the mold frame 130, and the upper elastic bar 161, the left elastic bar 162, the right elastic bar 163, (164).

Each of the upper elastic bar 161, the left elastic bar 162, the right elastic bar 163 and the fitting protrusions 169a of the lower elastic bar 164 manufactured as described above are inserted into the upper mold frame 131, 133, the right mold frame 135 and the second fitting groove 131bb of the lower mold frame 137 to assemble the elastic frame 160 to the mold frame 130.

At this time, the elastic frame 160 can be assembled to the mold frame 130 while adjusting the position of the optical sheet 155 so that the end of the optical sheet 155 contacts the inside of the support protrusion 169b.

Next, the LCD cell 170 is placed on the end portion 169c of the elastic frame 160. Then, At this time, the flexible PCB 173 connected to the LCD cell 170 is bent so as to be seated in the seating groove 132 of the upper mold frame 131. In addition, in the present invention, the front surface of the LCD cell 170 can be coated (laminating) by an optical bonding by an anti-reflective glass plate 172 by a line operation.

Next, the third profile member 189 is cut so as to correspond to the horizontal and vertical sizes of the back frame 110, and the respective end portions are cut to form the cut surfaces 188a and 188b, thereby forming the upper chassis 181, The chassis 183, the right chassis 185, and the lower chassis 187 are manufactured.

Each of the upper chassis 181, the left chassis 183, the right chassis 185 and the lower chassis 187 which are manufactured as described above is placed on the ribs 113 of the back frame 110 so as to cover the rims of the LCD cell 170, , Tighten with bolt (B1). The bolt B1 is fastened to the rib 113 through the chassis frame 180 and the upper end of the fitting portion 139 of the mold frame 130 so that the chassis frame 180 and the mold frame 130 are fastened to the back frame 110).

On the other hand, when installing the upper chassis 181, the left chassis 183, the right chassis 185, and the lower chassis 187, a sponge tape (not shown) is attached to the inside of the chassis 181 to absorb the impact, .

Next, the substrate protecting cover 197 is bolted to the upper rear surface of the base plate 111 of the back frame 110 so as to surround the first connecting substrate 175, and the LCD driving board 192 is fixed to the base plate 111 And the first board cover 195 is fixed to the rear surface of the base plate 111 so as to cover the first board cover 195. At this time, it is possible to connect the third connecting board 193 to the LCD driving board 192.

As described above, in the present invention, the first, second, and third profile members 139, 169, and 189 are cut to form the respective mold frames 130, the elastic frame 160, And the chassis frame 180 are manufactured and used. Therefore, the display panel can be easily manufactured and used in accordance with the size of the product, that is, the size of the LCD display panel.

In the present invention, the chassis frame 180 surrounds the edge of the anti-reflection glass 172 to cover the back frame 110 in a state in which the anti-reflection glass 172 is directly optically bonded to the front surface of the LCD cell 170, The anti-reflection glass 172 can be easily broken and the durability of the anti-reflection glass 172 can be improved, as compared to the case where the anti-reflection glass is finally bonded to the rim of the chassis after the end of the assembly process .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that many changes and modifications of the present invention can be made without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

110 ... back frame
111 ... base plate
113 ... rib
120 ... spacing plate
130 ... mold frame
131 ... upper mold frame
133 ... left mold frame
135 ... right mold frame
137 ... lower mold frame
139 ... first profile member
140 ... LED module
151 ... reflector
153 ... light guide plate
155 ... optical sheet
160 ... elastic frame
161 ... upper elastic bar
162 ... left elastic bar
163 ... right elastic bar
164 ... lower elastic bar
169 ... second profile member
170.LCD cell
180 ... chassis frame
181 ... upper chassis
183 ... left chassis
185 ... right chassis
187 ... bottom chassis
191 ... LED driving board
192 ... LCD drive board
194 ... second board cover
195 ... first board cover
196,197 ... Board protective cover

Claims

A method of manufacturing an LCD display panel having a backlight including a back frame, a mold frame, a reflection plate, a light guide plate, an optical sheet, an elastic frame, an LCD cell, and a chassis frame,
a) cutting the first profile member to correspond to the horizontal and vertical sizes of the back frame to fabricate the mold frame composed of the upper mold frame, the left mold frame, the right mold frame and the lower mold frame, ;
b) stacking the reflection plate, the light guide plate, and the optical sheet so as to be supported on the mold frame;
c) cutting the second profile member to correspond to the mold frame to fabricate the elastic frame composed of the upper elastic bar, the left elastic bar, the right elastic bar, and the lower elastic bar, and assembling the elastic frame to the mold frame;
d) stacking the LCD cell in front of the optical sheet so as to be supported by the elastic frame;
e) The third profile member is cut to correspond to the horizontal and vertical sizes of the back frame, so that an ordinary chassis frame composed of an upper chassis, a left chassis, a right chassis, and a lower chassis is fabricated to cover the rim of the LCD cell, And fixing to the side surface,
Wherein the first profile member is in the form of a rod having a predetermined length,
Wherein the first profile member comprises: a main plate having a vertical shape; a fitting portion having a first fitting groove formed on the upper surface of the main plate and formed toward the rear side and a second fitting groove formed toward the front side; And a support portion formed on the front side,
Wherein the mold frame is assembled such that the first fitting groove is fitted to the rim of the back frame,
Wherein the LCD cell has a plurality of flexible printed circuit boards (PCB) spaced from each other along the longitudinal direction at an upper end thereof,
Wherein the upper mold frame is formed with a plurality of seating grooves on which the plurality of flexible PCBs are mounted,
Wherein the plurality of seating grooves are formed by cutting the fitting portion of the first profile member.

delete

The method according to claim 1,
The second profile member may have a fitting protrusion that is fitted into the second fitting groove at an upper end of the back surface, a support protrusion is formed at a lower portion of the fitting protrusion,
Wherein the elastic frame is assembled such that the fitting protrusion is fitted into the second fitting groove of the mold frame.

The method according to claim 1,
The third profile member is made of a metal material or a synthetic resin material and has a rod shape having a cross section of "a"
Wherein the chassis frame covers the rim of the LCD cell and is bolted to a side of the back frame.

6. The method of claim 5,
Wherein the upper chassis, the lower chassis, the left chassis, and the right chassis are machined to have mutually corresponding cuts at adjacent ends thereof.

The method according to claim 1,
And the chassis frame is fixed to the back frame in a state that the chassis frame is covered with the edge of the anti-reflective glass while the anti-reflective glass is bonded to the front surface of the LCD cell by the optical silicon as a line operation Wherein the backlight is a liquid crystal display panel.

The method according to claim 1,
Wherein the elastic frame is made of rubber, urethane, or silicone.

The method according to claim 1,
Guide projections are formed on both sides of the back frame,
The first guide groove is formed on both sides of the reflection plate at positions corresponding to the guide protrusions,
And second guide grooves are formed on both sides of the light guide plate at positions corresponding to the guide protrusions,
Wherein the reflection plate and the light guide plate are installed with the guide protrusion inserted into the first guide groove and the second guide groove to thereby determine the mounting positions of the reflection plate and the light guide plate. .

The method according to claim 1,
Wherein a spacing plate is provided between the back frame and the reflection plate to maintain the light guide plate in a flat state.