KR20040087470A - Device for testing reliability of liquid crystal display device - Google Patents

Abstract

PURPOSE: A device for testing the reliability of an LCD(Liquid Crystal Display) module is provided to test LCD modules with inter-different sizes. CONSTITUTION: The first fixed module(100) has the first base plate(110) and slide blocks(130). The first base plate mounts LCD modules with inter-different sizes. The slide blocks slide on the first base plate and fix a plurality of sides of the LCD module to fix the LCD module on the first base plate. The second fixed module(200) has the second base plate(210) and a pressure block(220). The pressure block is disposed in the second base plate to press the upper surface of the LCD module fixed in the first fixed module. A combining member combines the first fixed module with the second fixed module.

Description

Liquid crystal display module reliability test device {DEVICE FOR TESTING RELIABILITY OF LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display module reliability test apparatus, and more particularly, to a liquid crystal display module reliability test apparatus capable of testing different LCD modules of different sizes.

In general, a liquid crystal display module (LCD) is a device for displaying an image using a liquid crystal (Liquid Crystal).

The liquid crystal display module includes a liquid crystal display panel, a back light assembly, a case, and the like.

The liquid crystal display panel is a TFT substrate having thin film transistor elements arranged in a matrix, a color filter substrate attached to a TFT substrate and having a color filter formed on a surface facing the thin film transistor elements, and a liquid crystal disposed between the TFT substrate and the color filter substrate. It is composed. The liquid crystal display panel controls the transmittance of light supplied to the liquid crystal in small area units and filters the wavelength of the light whose transmittance is controlled to generate image light.

The backlight assembly includes a light source for generating light, a light guide plate for guiding light, optical sheets for diffusing and condensing light to increase brightness, and a storage container into which the backlight assembly is inserted.

The case is composed of a top chassis covered on the liquid crystal display panel side and a bottom chassis covered on the bottom surface of the storage container. The top chassis and the bottom chassis are coupled to each other and protect them from shock or vibration so that the liquid crystal display panel and the backlight assembly are not damaged.

The liquid crystal display module configured as described above is supplied to manufacturers of mobile phones, monitors, and PDAs according to their respective sizes and assigned functions.

LCD modules supplied to each manufacturer are mounted on sample products being developed by each manufacturer, and the LCD module is tested for reliability against impact. Afterwards, the LCD module, which has failed in the reliability test, is returned to the manufacturer of the LCD module to supplement the durability of the backlight assembly and the case such that the LCD module is not damaged by the impact.

As described above, in the conventional case, the reliability test process of the LCD module can be performed only after the sample product on which the LCD module is to be mounted comes out, and when an abnormality occurs in the reliability test, the LCD module returns to the manufacturer who manufactured the LCD module, Since the durability of the LCD module, as well as the mass production of the LCD module, there is a problem in that even the production of the product is delayed.

Accordingly, the present invention has been made in view of such a conventional problem, and an object of the present invention is to provide an LCD module reliability test apparatus that is compatible to test LCD modules having different sizes.

1 is an exploded perspective view showing an LCD module reliability test apparatus according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1.

3 is a cross-sectional view taken along line B-B of FIG. 1.

4 is a view for explaining a state in which the LCD module is fixed to the slide blocks of the first embodiment.

5 is an exploded perspective view showing the LCD module reliability test apparatus according to a second embodiment of the present invention.

6 is a cross-sectional view taken along line C-C of FIG. 5.

7 is a view for explaining a state in which the LCD module is fixed to the slide blocks of the second embodiment.

In order to realize the object of the present invention, the present invention provides a first base plate for mounting LCD modules having different sizes, and slides on the first base plate to fix the LCD module on the first base plate. A first fixing module including slide blocks for fixing a plurality of sides, a second base plate coupled to the first base plate, and a pressing disposed on the second base plate to press the upper surface of the LCD module fixed by the slide blocks A liquid crystal display module reliability test apparatus including a second fixing module including a block and coupling means for coupling the first fixing module and the second fixing module is provided.

The present invention is to test the reliability of the LCD module before the production of a predetermined product on which the LCD module is mounted by using the LCD module reliability test apparatus that the size of the space in which the LCD module is mounted, the production period of the LCD module and the LCD module This can shorten the mass production period of the predetermined product to be mounted.

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

Embodiments of LCD Module Reliability Test Device

Example 1

1 is an exploded perspective view showing an LCD module reliability test apparatus according to a first embodiment of the present invention. 2 is a cross-sectional view taken along the line A-A of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B-B of FIG. 1. 4 is an explanatory diagram for explaining a state in which the LCD module is fixed to the slide blocks of the first embodiment.

Referring to FIG. 1, the LCD module reliability test apparatus 1 is largely composed of a first fixing module 100, a second fixing module 200, and a coupling member 250.

The first fixing module 100 is composed of the first base plate 110, the LCD module accommodating space 120, the slide blocks 130, and the first support plate 160 again.

The first base plate 110 has a rectangular shape, for example. The first base plate 110 includes a first direction guide through hole 112 and a second direction guide through hole 114.

The first direction guide through holes 112 are formed in the first base plate 110 in the first direction defined in FIG. 1, and two are formed in pairs. The first direction guide through hole 112 is formed in a pair to face each other to the first base plate 110.

The second direction guide through holes 114 are formed in the first base plate 110 in the second direction defined in FIG. 1, and two are formed in pairs. The second direction guide through hole 114 is formed in a pair to face each other to the first base plate 110.

A plurality of first screw fastening grooves 116 are formed at the edges of the first base plate 110, and female threads are formed in the first screw fastening grooves 116.

The LCD module accommodating space 120 is formed in a shape corresponding to the LCD module 300 (see FIG. 3) between the slide blocks 130. The LCD module accommodating space 120 is variable in size by the movement of the slide blocks 130, and thus LCD modules 300 having different sizes may be accommodated in the accommodating space 120.

The slide blocks 130 are installed on the upper surface of the first base plate 110. The slide blocks 130 are composed of first direction slide blocks 132a and 132b and second direction slide blocks 140a and 140b.

Two first directional slide blocks 132a and 132b are installed on the first base plate 110 so as to face each other, and the first directional guide through hole 112 is used to change the size of the LCD module storage space 130. Move along.

First through holes 135 are formed in the first direction slide blocks 132a and 132b corresponding to the first direction guide through holes 112, respectively.

Two second directional slide blocks 140a and 140b are installed on the first base plate 110 so as to face each other, are orthogonal to the first directional slide blocks 132a and 132b, and change the size of the storage space 130. And moves along the second directional guide through hole 114.

Referring to FIG. 2, each of the second directional slide blocks 140a and 140b includes an LCD module mounting block 144 and an LCD module fixing block 150. As shown in FIG. 2, the LCD module mounting block 144 and the LCD module fixing block 150 are separated up and down.

2 or 4, the LCD module mounting block 144 has an L-shaped bracket shape. The first step 145 and the second step 146 are continuously formed at the end of the LCD module seating block 144 parallel to the first base plate 110 in a stepped shape. The bottom edge portion and side surfaces of the LCD module 300 illustrated in FIG. 2 are seated on the first step 145. When the LCD module 300 is seated on the first step 145, the bottom surface of the LCD module 300 is spaced apart from the first base plate 110. The LCD module fixing block 150 is seated on the second step 146.

The LCD module fixing block 150 has a rectangular bar shape seated on the LCD module mounting block 144. A protrusion 152 protrudes toward the LCD module 300 at a portion of the LCD module fixing block 150 facing the LCD module 300. The protrusion 152 of the LCD module fixing block 150 presses and fixes the upper edge portion of the LCD module 300.

Referring to FIG. 2, in order to couple the LCD module mounting block 144 and the LCD module fixing block 150, second screw fastening grooves 147 are formed in the LCD module mounting block 144 and the LCD module fixing block. A second through hole 154 coinciding with the second screw fastening groove 147 is formed in the 150. The second through hole 154 and the second screw fastening groove 147 are fastened by the first screw 254 which will be described later in detail.

3 and 4, a third through hole 148 is formed in the LCD module mounting block 144 corresponding to the positions of the second direction guide through holes 114. Meanwhile, the fourth through hole 156 is formed in the LCD module fixing block 150 to correspond to the third through holes 148. The second screw 252 is fitted into the third through hole 148, the fourth through hole 156, and the second direction guide through hole 114. An end of the second screw 252 protrudes somewhat from the first base frame 110. The nut 253 is coupled to the protruding portion.

On the other hand, the first support plate 160 is installed along the bottom edge of the first base frame 110 to space the bottom surface of the first base frame 110 from the ground by a predetermined distance.

Referring back to FIG. 1, the second fixing module 200 includes a second base frame 210, a pressure block 220, and a second support plate 230.

The second base frame 210 is formed in the same shape and size as the first base frame 110. Projections 212 are formed at both widthwise edges of lower surfaces of the second base frame 210 facing the first base frame 110. The protrusion 212 separates the second base frame 210 from the slide blocks 130 so that the slide blocks 130 and the lower surfaces of the second base frame 210 do not contact each other.

A fifth through hole 214 is formed in a portion of the second base frame 210 that corresponds to the center of the LCD module accommodating space 120, and a female screw portion is formed on an inner side surface of the fifth through hole 214.

The pressing block 220 is disposed on the lower surface of the second base frame 210 so as to face the LCD module receiving space 120. A third screw fastening groove 222 into which the third screw 256 to be described later is inserted is formed at a portion corresponding to the fifth through hole 214 of the pressing block 220. According to the present embodiment, it is preferable that the size of the pressing block 220 is smaller than the LCD module having the smallest size among the LCD modules 300 fixed to the storage space 120.

The second support plate 230 is installed at a position corresponding to the protrusion 212 of the upper surface of the second base frame 210. Sixth through hole penetrating from the second supporting plate 230 to the protrusion 212 in a portion corresponding to the first screw fastening groove 116 formed in the first base frame 110 of the second supporting plate 230 ( 232) are formed. The sixth through hole 232 and the first screw fastening groove 116 are fastened by the fourth screw 248 to be described later.

Coupling portion 250 is composed of a first screw 254, a second screw 252, a third screw 256 and a fourth screw 258.

The first screw 254 fastens the second through hole 154 and the second screw fastening part 147 shown in FIG. 2 to each other. As a result, the LCD module mounting block 144 and the LCD module fixing block 150 are fastened to each other.

The second screw 252 is inserted through the fourth through hole 156 and the third through hole 148 shown in FIG. 3 so that the second directional slide blocks 140a and 140b are fixed to the first base frame 110. To be possible.

As shown in FIG. 2 or FIG. 3, the third screw 256 is fastened to the female threaded portion of the fifth through hole 214 formed in the second base frame 210 to fix and pressurize the pressure block 220. 220) to be able to exercise up and down.

The fourth screw 258 serves to fix the first base frame 110 and the second base frame 220 to each other.

According to the present embodiment, the first to fourth screws 252, 254, 256 and 258 are butterfly screws having a butterfly-shaped handle formed on the head portion so that an operator can easily tighten and loosen the male screws by hand.

According to this embodiment, the reliability of all kinds of LCD modules without user mounting on the side of the LCD module can be tested by changing the size of the LCD module storage space by moving the first direction slide blocks and the second direction slide blocks, respectively. Can be.

Example 2

5 is an exploded perspective view showing the LCD module reliability test apparatus according to a second embodiment of the present invention. 6 is a cross-sectional view taken along the line C-C of FIG. 5, and FIG. 7 is a view for explaining a state in which the LCD module is fixed to the slide blocks of the second embodiment. In the LCD module reliability test apparatus according to the present exemplary embodiment, the remaining parts except for the structure of the second direction slide block are the same as those of the LCD module reliability test apparatus of the first embodiment, and thus descriptions of the overlapped parts will be omitted.

5 to 7, the second direction slide block 140 includes an LCD module mounting block 144 and a user mounting fixing block 150. As shown in FIG. 7, the LCD module mounting block 144 and the user mounting fixing block 150 are vertically separated.

On the upper surface 146 of the LCD module seating block 144 facing the user mounting fixing block 150 is placed a user mounting 310 formed on the side of the LCD module 300, the upper surface of the user mounting 310 The user mounting fixing block 150 is placed.

The user mounting fixing block 150 is formed in a rectangular bar shape and presses the user mounting 310 placed on the upper surface 146 of the LCD module mounting block 144 to fix the LCD module 300.

At this time, the combination of the LCD module seating block 144 and the user mounting fixing block 150 is the same as in the first embodiment, the duplicated description will be omitted.

The LCD module reliability test apparatus according to the present embodiment can test reliability of not only LCD modules having different sizes but also LCD modules in which user mountings are formed.

As described in detail above, the present invention is to test the reliability of the LCD module before the production of a predetermined product on which the LCD module is mounted by using the LCD module reliability test apparatus in which the size of the space in which the LCD module is mounted is variable, The mass production period of the LCD module and the production period of a predetermined product on which the LCD module is mounted can be shortened.

In addition, since the size of the storage space in which the LCD module is accommodated can be changed to a desired size, the sizes are different from each other, and the reliability of all kinds of LCD modules can be tested regardless of the presence or absence of user mounting.

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 (9)

A first base plate for mounting LCD modules of different sizes, and slide blocks for fixing a plurality of side surfaces of the LCD module while being slid on the first base plate to fix the LCD module on the first base plate; A first fixing module comprising; A second fixing module including a second base plate and a pressing block disposed on the second base plate for pressing an upper surface of the LCD module fixed to the first fixing module; And And a fastening member coupling the first fixing module and the second fixing module. The first base plate has a first direction guide through hole for moving the slide block in a first direction, and a vertical relationship with the first direction guide through hole for moving the slide block in a second direction. And a second direction guide through hole having a first screw fastening groove formed therein for coupling with the second fixing module. 3. The liquid crystal display module of claim 2, wherein the first and second directional guide through holes are formed in a slit shape through the first base plate to fix the slide block to the first base plate. Reliability testing device. The slide block of claim 2, wherein the slide block moves along the first direction guide through hole and moves along the first direction slide block and the second direction guide through hole, and the first direction slide block is disposed to face each other. Liquid crystal display module reliability test apparatus comprising a second directional slide block that is orthogonal and installed to face each other. The method of claim 4, wherein the second directional slide block is composed of an LCD module mounting block and an LCD module fixing block that is separated up and down, the LCD module is sandwiched between the LCD module mounting block and the LCD module fixing block is fixed. A liquid crystal display panel reliability test device. The LCD module mounting block of claim 5, wherein the LCD module seating block has a first step on which the bottom edge of the LCD module is seated, and a second step on which the LCD module fixing block is seated. Liquid crystal display panel reliability test apparatus characterized in that it has a protrusion for fixing the top edge of the module. The LCD module mounting block of claim 5, wherein the LCD module mounting block has an L-shaped bracket shape having a stepped surface at which the bottom edge of the LCD module is seated, and the LCD module fixing block is seated on an upper surface of the LCD mounting block. Liquid crystal display panel reliability test apparatus characterized in that it has a rectangular bar block shape. 6. The LCD device of claim 5, wherein the LCD module seating block and the LCD module fixing block are fixed to each other by a first screw, and the LCD module seating block and the LCD module fixing block comprise a second direction slide block. A through hole corresponding to the guide through hole is formed, and the second hole is inserted into the through hole so that the second directional slide block is fixed to the first base plate. The liquid crystal display module reliability test apparatus according to claim 1, wherein the supporting plate is further provided along an edge of a surface of the first base plate that faces the slide block.