KR20050032835A - The cassette for the liquid crystal display device - Google Patents

Abstract

A cassette for an LCD(Liquid Crystal Display) is provided to make it possible to load substrates with various size at the same time by adjusting the size of load space by using a stopper. An upper frame(31), comprised of a central plate(31b) and an outer plate(31b), has two aperture parts by the central plate. A lower frame(32) has the same structure as the upper frame and is opposite to the upper frame with space. A plurality of side frames(33) are connected to both edges of the upper and lower frames and opposite to each other. A plurality of the first slots(34a) are formed in the side frames, respectively. A plurality of guide bars(50) are connected to the aperture parts of the upper and lower frames in parallel with the central plate. The first and second load space is distinguished from each other on a basis of a central surface that connects central plates of the upper and lower plates to each other. A plurality of shelf plates(70) are opposite to the side frames, respectively, and movably fixed at the guide bars. The second slot(34b) is opposite to the first slot.

Description

Cassette for liquid crystal display device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a liquid crystal display device, and more particularly to a cassette for a liquid crystal display device capable of accommodating various sizes of substrates at the same time.

As the information society develops, the demand for display devices is increasing in various forms, and in recent years, liquid crystal displays (LCDs), plasma display panels (PDPs), electro luminescent displays (ELDs), and vacuum fluorescent displays (VFDs) have been developed. Various flat panel display devices have been studied, and some of them are already used as display devices in various devices.

Among them, LCD is the most widely used as a substitute for CRT (Cathode Ray Tube) for the use of mobile image display device because of the excellent image quality, light weight, thinness, and low power consumption, and mobile type such as monitor of notebook computer. In addition, it is being developed in various ways, such as a television for receiving and displaying broadcast signals, and a monitor of a computer.

As described above, although various technical advances have been made in order for the liquid crystal display device to serve as a screen display device in various fields, the task of improving the image quality as the screen display device has many advantages and disadvantages.

Therefore, in order to use a liquid crystal display device in various parts as a general screen display device, the key to development is how much high definition images such as high definition, high brightness, and large area can be realized while maintaining the characteristics of light weight, thinness, and low power consumption. It can be said.

Such a liquid crystal display device may be classified into a liquid crystal display panel displaying an image and a driving unit for applying a driving signal to the liquid crystal display panel, wherein the liquid crystal display panel has a space and is bonded to the first and second substrates. And a liquid crystal layer injected between the first and second substrates.

The first substrate (TFT array substrate) may include a plurality of gate lines arranged in one direction at a predetermined interval, a plurality of data lines arranged at regular intervals in a direction perpendicular to the gate lines, and the respective gates. A plurality of thin film transistors which are switched by signals of the gate line and a plurality of pixel electrodes formed in a matrix form in each pixel region defined by crossing a line and a data line, transmit a signal of the data line to each pixel electrode. Formed.

The second substrate (color filter substrate) includes a black matrix layer for blocking light in portions other than the pixel region, R, G, and B color filter layers for expressing color colors, and a common electrode for implementing an image. Is formed.

The first and second substrates have a predetermined space by spacers and are bonded by a sealant to form a liquid crystal between the two substrates.

Such liquid crystal display devices are manufactured by various processes as follows.

1. Manufacturing a thin film transistor array on a first substrate:

That is, a plurality of liquid crystal panel regions are defined on the first mother substrate, and pixel regions are defined by forming gate lines and data lines in directions perpendicular to each liquid crystal panel region, and pixel electrodes and respective gate lines in each pixel region. After the thin film transistor is formed at the intersection of the and data lines, a first alignment layer is formed on the entire surface of the substrate.

2. Process of manufacturing color filter array on second substrate:

That is, a plurality of liquid crystal panel regions are defined on the second mother substrate, and a black matrix layer for blocking light of portions except the pixel region in each liquid crystal panel region, and R, G, for implementing color in each pixel region, A B color filter layer is formed, a common electrode is formed on the entire surface, and a second alignment layer is formed.

3. Bonding the first and second mother substrates as described above:

That is, a sealant for bonding the two substrates is formed at the edge of each liquid crystal panel region of one of the first and second mother substrates, and a spacer for maintaining the cell gap of the two substrates is formed. . Then, one of the two substrates is inverted (inverted) to bond the two substrates. And the said sealing material is hardened.

4. Transfer the two bonded substrates to each unit liquid crystal panel.

That is, the unit liquid crystal panel is scribed, and a unit liquid crystal panel is manufactured through a blanking process.

5. Each liquid crystal panel is made into a vacuum between two substrates, the liquid crystal inlet is immersed in a liquid crystal container, and the liquid crystal is injected between the two substrates by using a pressure difference, and then the liquid crystal inlet is sealed.

6. As described above, the driving signal is applied to each liquid crystal panel into which the liquid crystal is injected to check the disconnection and short circuit of the signal line to determine the good or bad product, and if there is a defect, the repair process is performed.

7. Thus, the liquid crystal display module is manufactured by mounting a backlight or the like on the LCD panels of the good products.

As described above, the substrate is subjected to various processes to be completed as a liquid crystal display device. At this time, the substrate is stored in a cassette by a set unit and moved to each process step.

Hereinafter, a conventional cassette for a liquid crystal display will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a conventional cassette for a liquid crystal display, and FIG. 2 is a front view of FIG. 1.

Conventional cassettes, as shown in Figs. 1 and 2, have an upper frame 3, a lower frame 4 and side frames 6 for preventing structural deformations in external environmental conditions under load and process; A shelf plate (8) interposed between the side frames (6) and having a plurality of slots (14) inside; A stopper 12 is provided to prevent the substrate 10 seated in the slot 14 of the shelf plate 8 from being excessively inserted.

The upper frame 3 and the lower frame 4 are formed in the width direction with the outer plate 2a and the width plate 2b in the width direction in order to firm the structure of the cassette and to prevent deformation due to the load. A plurality of width plates 2c are connected to each other.

Here, each side frame 6 is connected to each corner between the upper frame 3 and the lower frame 4 to support the upper frame 3 and the lower frame 4.

The shelf plate 8 is installed orthogonally to the upper frame 3 between each side frame 6. A plurality of slots 14 protruding a predetermined interval are formed inside the shelf plate 8, and the substrate 10 is seated in the slots 14 by manual operation of a robot and a person.

The stopper 12 is connected to and installed perpendicularly to the upper frame 3 and the lower frame 4 on the opposite side of the inlet through which the substrate 10 enters and exits.

The stopper 12 serves to support the upper frame 3 and the lower frame 4 while preventing the substrate 10 from falling when the cassette is transferred.

FIG. 2 is a front view of FIG. 1 viewed from the front.

Referring to FIG. 2, the upper and lower frames 3 and 4 each have a fixing bar 16 for changing the position of the shelf plate 8 according to the size of the substrate 10, a fixing bar 16, and an upper portion. And a plurality of screw holes 22 for fastening the lower frame 2.

The fixing bar 16 is fastened by the upper and lower frames 3 and 4 and the first bolt 20a to reduce or increase the distance between the shelf plates 8 according to the size of the substrate 10. In addition, the second bolt 20b is fastened to the shelf plate 8.

When the distance between the shelf plates 8 is to be changed according to the size of the substrate 10, the fixing bolt 16 is separated from the upper frame 3 by releasing the first bolt 20a.

Thereafter, the fixing bar 16 is moved to the position of the screw hole 22 to be changed, so that the fixing bar 16 and the upper frame 3 and the lower frame 4 are again the first bolts 20a. By fastening using, it is possible to flexibly respond to the size of the substrate.

However, the conventional liquid crystal display cassette has the following problems.

Conventional liquid crystal display cassettes can accommodate substrates of various sizes by adjusting the distance between shelf plates, but there is a disadvantage that only one substrate of the same size can be stored in one cassette.

Therefore, a small substrate cassette is used to load a small substrate, a medium substrate cassette is used to load a medium sized pin, and a large substrate cassette must be used separately to load a large sized substrate. However, there was a problem of additionally purchasing a cassette according to each substrate size.

The present invention has been made to solve the above problems, by increasing the loading space on which the substrate can be loaded, by adjusting the size of the loading space using a stopper, a liquid crystal capable of loading a variety of substrates at the same time It is an object of the present invention to provide a cassette for displaying a label.

According to an aspect of the present invention, there is provided a cassette for a liquid crystal display device, comprising: an upper frame including a center plate and an outer plate, the upper frame having two openings by the center plate; A lower frame having the same structure as the upper frame and positioned to face the upper plate; Side frames connected to both corners of the upper frame and the lower frame to face each other; A plurality of first slots formed in each of the side frames; A plurality of guide rods connected in parallel with the center plate between the openings of the upper frame and the openings of the lower frame, respectively; A first loading space and a second loading space surrounded by the upper frame, the lower frame and the side frames, the first loading space being divided based on a center plane connecting the center plates of the upper frame and the lower frame; A plurality of shelf plates provided at least two or more in the first and second loading spaces to face each of the side frames, the upper and lower parts being movable to the guide rods; One side of each shelf plate, it characterized in that it comprises a second slot formed to face the first slot of the side frame.

Here, a plurality of screw holes and a plurality of first stopper holes penetrating through the center plate of the upper frame and the lower frame are formed.

A plurality of screw holes and a plurality of second stopper holes penetrating the outer plate may be formed at one side of the outer plate parallel to the center plate among the outer plates of the upper frame and the lower frame.

And a plurality of stoppers detachable from the first stopper hole and the second stopper hole.

The upper and lower portions of each shelf plate, characterized in that it further comprises a fixing bar for fixing each shelf plate and the upper frame and the lower frame to each other.

The fixing bar is formed perpendicular to the guide rod, characterized in that the groove is formed on the contact surface of the fixing bar at the portion where the fixing bar and the guide rod perpendicularly cross.

Hereinafter, a cassette for a liquid crystal display according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a cassette for a liquid crystal display according to an exemplary embodiment of the present invention, FIG. 4 is a front view of FIG. 3, and FIG. 5 is a perspective view for explaining the relationship between the plate and the fixing bar of FIG. 3.

As shown in FIGS. 3 and 4, the cassette for the liquid crystal display according to the exemplary embodiment of the present invention includes an upper frame 31, a lower frame 32, two side frames 33, and the upper frame ( 31, a large shelf plate 70 for mounting the substrate 60a in the inner space surrounded by the lower frame 32 and the two side frames 33.

Here, the upper frame 31 and the lower frame 32 are composed of an outer plate 31a and a center plate 31b, and have two openings divided by the center plate 31b.

A plurality of screw holes 55 are formed at both edges of the center plate 31b, and a plurality of first stoppers penetrating the center part are vertically formed at a central portion of the center plate 31b. The hole 41a is formed.

In addition, a plurality of screw holes 55 and a plurality of second stopper holes vertically penetrating a portion parallel to the center plate 31b of the outer plate 31b of the upper frame 31 and the lower frame 32, respectively. 41b is formed.

Here, the second stopper hole 41b is formed only at any one of the portions parallel to the center plate.

In addition, the second stopper hole 41b is formed at the outer side more than the screw hole 55.

Meanwhile, two openings are formed in the upper frame 31 and the lower frame 32 as described above, and a plurality of openings are formed between the openings of the upper frame 31 and the openings of the lower frame 32, respectively. Two guide rods 50 are connected in parallel with the center plate.

The guide rod 50 formed in each opening of the upper frame 31 and the guide rod 50 formed in each opening of the lower frame 32 are formed at positions corresponding to each other.

Here, the guide rod 50 is preferably made of stainless steel (stainless steel) material.

In addition, a plurality of first slots 34a on which the substrate 60a is seated is formed in each of the side frames 33.

The upper frame 31 and the lower frame 32 configured as described above are formed to face each other with a space, and the first slot 34a is formed at the corners of the upper frame 31 and the lower frame 32. The side frames 33 are respectively connected to face each other.

Here, a plurality of stoppers 90 for preventing excessive insertion of the substrate 60a seated in the first slot 34a into one of the first stopper hole 41a and the second stopper hole 41b. ) Will be installed.

That is, each stopper 90 has a cylindrical shape, and the first stopper hole 41a is disposed between the center plate 31b of the upper frame 31 and the center plate 31b of the lower frame 32 facing each other. It is inserted through), and the center plate 31b of the upper frame 31 and the center plate 31b of the lower frame 32 and the stopper 90 are fastened by using bolts.

In addition, when it is necessary to connect the stopper 90 to the second stopper hole 41b, the bolt is removed to separate the stopper 90 from the first stopper hole 41a to release the second stopper hole 41b. ) Can be fastened using the bolt.

Meanwhile, the space surrounded by the upper frame 31, the lower frame 32 and the two side frames 33 is the center plate 31b of the upper frame 31 and the center plate 31b of the lower frame 32. ) Is divided into a first loading space and a second loading space with respect to the spaces facing each other.

That is, the first loading space and the second loading space may be divided by the stopper 90 inserted into the first stopper hole 41a.

Each of the first loading space and the second loading space has one substrate inlet, and the substrate 60a is inserted in the arrow direction shown in FIG. 3.

Here, two shelf plates 70 which are movable between the side frames 33 are formed in the first loading space and the second loading space, respectively.

Two shelf plates 70 are provided in the first loading space and the second loading space, respectively, and on one side of each shelf plate 70, a plurality of second slots 34b on which the substrate 60a is seated. Is formed.

Each shelf plate 70 is provided such that the second slot 34b of each shelf plate 70 faces the first slot 34a of the side frame 33. The plurality of first slots 34a formed in the frame 33 and the plurality of second slots 34b formed in the shelf plates 70 are positioned to correspond to each other.

In addition, fixing bars 80 are formed at the upper and lower portions of the respective shelf plates 70.

The fixing bar 80 is an intermediate medium for fixing the shelf plate 70, the upper frame 31 and the lower frame 32 to each other, and includes a plurality of second slots 34b of the shelf plate 70. The second slot 34b at the top and the second slot 34b at the bottom thereof are placed in the direction perpendicular to the guide rod 50.

The upper frame 31, the lower frame 32, and the fixing bar 80 are fastened to each other by the first bolt 40a, and the fixing bar 80 is again angled by the second bolt 40b. The plate 70 is fastened to each other.

In addition, a semi-circular groove is formed in the upper portion of the fixing bar 80, the guide rod 50 perpendicular to the fixing bar 80 is placed in the groove of the fixing bar 80 to be in close contact.

Accordingly, the fixing bar 80 moves between the side frames 33 along the guide rod 50, whereby each plate 70 fixed to the fixing bar 80 is also fixed to the fixing bar 80. You can move the same as).

Of course, for this purpose, the first step of releasing the first bolt 40a fastened to the fixing bar 80 and the upper frame 31 and the lower frame 32 should be preceded.

Hereinafter, a method of storing a substrate using the cassette for a liquid crystal display device configured as described above will be described in detail.

Here, a method of dividing the substrate into small, medium, and large sizes according to the size, and storing a plurality of sets of substrates of the same size and a method of simultaneously storing substrates of various sizes will be described.

6 is an explanatory diagram illustrating a process of loading a small substrate and a medium substrate, and FIG. 7 is an explanatory diagram illustrating a process of loading a large substrate.

First, only a small substrate is accommodated as follows.

Here, the substrate 60a shown in FIG. 3 will be defined as a small substrate.

First, as shown in FIG. 3, the stopper 90 is connected to the first stopper hole 41a.

Subsequently, the fixing bar 80 is separated from the upper frame 31 and the lower frame 32, and each shelf plate 70 formed in each of the first loading space and the second loading space is disposed on the small substrate ( It is spaced apart from the side frame 33 or moved in the direction of the side frame 33 to a width appropriate to the size of 60a).

Specifically, the fixing bar 80, the upper frame 31 and the lower frame 32 are fastened to each other by releasing the first bolt (40a) to fix, the fixing bar 80 to the upper frame ( 31) and the lower frame (32).

Of course, the fixing bar 80 and the shelf plate 70 are fastened to each other by fastening the second bolts 40b, so that the fixing bar 80 and the shelf plate 70 can move together. .

By doing so, each shelf plate 70 can move along the guide rods 50 provided on the upper and lower portions of the fixing bar 80.

In this way, the shelf plate 70 is moved to change the distance between the shelf plate 70 and the side frame 33 to match the size of the small substrate 60a. The fixing plate 80 fixed with the shelf plate 70 is fixed to the upper frame 31 and the lower frame 32 again.

In detail, the fixing bar 80, the upper frame 31, and the lower frame 32 are fastened by using the first bolt 40a at a portion where the plate 70 is moved.

Thus, by adjusting the position of each shelf plate 70, the distance between each shelf plate 70 and the side frame 33 is changed to match the size of the small substrate (60a), and the adjusted each shelf plate ( After fixing the position of 70, the small substrate 60a is inserted in both directions in the direction of the arrow shown in FIG.

That is, the small substrate is between the second slot 34b of each shelf plate 70 located in the first loading space and the first slot 34a of the side frame 33 facing the shelf plate 70. The first slot 34a of the side frame 33 facing the second shelf 34b of each shelf plate 70 and each shelf plate 70 seated on the second loading space. A small substrate 60a having the same size as above is seated therebetween.

Thus, by loading two sets of small substrates 60a in the first loading space and two sets of small substrates 60a in the second loading space, the same sized small substrates 60a are placed in the cassette. Can load 4 sets.

Second, a case where the small substrate 60a and the medium substrate 60b are simultaneously loaded into the cassette is described below.

Here, as illustrated in FIG. 6, the medium substrate 60b is loaded in the first loading space, and the small substrate 60a is loaded in the second loading space.

Of course, as in the first case, the stopper 90 is inserted into and fixed to the first stopper hole 41a between the first loading space and the second loading space.

First, all two shelf plates 70 provided in the first loading space are separated from the first loading space.

Specifically, the fixing bolt 80 and the upper frame 31 are fastened to each other to release the first bolt 40a which is fixed, and the fixing bar 80 and the lower frame 32 are fastened to each other and fixed. The fixing bar 80 is separated from the upper frame 31 and the lower frame 32 by releasing the first bolt 40a.

In addition, by releasing the second bolt 40b which fastens the fixing bar 80 and the respective shelf plates 70 to each other, the shelf plates 70 may be separated from the first loading space. .

Here, both of the two shelf plates 70 may be separated from the first loading space, or only one shelf plate 70 may be removed.

When only one shelf plate 70 is separated, the remaining shelf plate 70 is adjusted to fit the size of the medium substrate 60b by adjusting the position of the shelf plate 70 remaining in the first loading space. ) And the side frame 33 can be adjusted.

Here, a case in which both shelf plates 70 are separated will be described.

As such, by separating both shelf plates 70 from the first loading space, the first loading space becomes wider.

Subsequently, in order to load the small substrate 60a in the second loading space, as described above, the shelf plate 70 is moved to match the size of the small substrate 60a. 70) and the distance between the side frame (33).

Subsequently, the middle substrate 60b is inserted into the first loading space in the direction of the arrow shown in FIG. 6, so that the middle substrate 60b is opposite to the first slot 34a of the side frame 33. The frame 33 is seated between the first slots 34a.

Then, the small substrate 60a is inserted in the second loading space in the direction of the arrow shown in FIG. 6, so that the small substrate 60a is formed with the second slot 34b of the shelf plate 70 and the side frame ( To be seated between the first slots 34a of 33.

By doing in this way, one set of medium board | substrate 60b can be mounted in the said 1st loading space, and two sets of small board | substrate 60a can be loaded in the said 2nd loading space.

Here, the middle plate 60b may be loaded in the second loading space by separating all or only one shelf plate 70 from the second loading space.

In such a case, a total of two sets of medium substrates 60b can be loaded in the cassette.

Third, the case of loading the large substrate 60c in the cassette is as follows.

First, all the shelf plates 70 provided in the 1st loading space and the 2nd loading space are separated from the said 1st loading space and the 2nd loading space as mentioned above second.

Subsequently, the stopper 90 inserted into and connected to the first stopper hole 41a between the first loading space and the second loading space is separated from the first stopper hole 41a.

Of course, since the stopper 90 is also fastened to the first stopper hole 41a by a bolt, the stopper 90 may be separated from the first stopper hole 41a by releasing the bolt.

Thereafter, the stopper 90 is inserted into the second stopper hole 41b positioned at the substrate inlet side of the first loading space and fastened using a bolt.

Subsequently, the large substrate 60c is inserted from the inlet side of the second loading space, as shown in FIG. 7, so that the large substrate 60c is aligned with the first slot 34a of the side frame 33. It is seated between the first slots 34a of the opposite side frame 33.

That is, the large substrate 60c may be seated between the first slot 34a while crossing the first loading space and the second loading space.

By doing so, one set of large substrates 60c can be loaded in the cassette.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

The above-described cassette for a liquid crystal display according to the present invention has the following effects.

First, the larger loading space can accommodate a larger number of substrates, resulting in faster logistics flow, thus reducing the overall process time.

Second, by using the stopper as a first stacking space and a second stacking space by using a stopper, substrates of various sizes can be loaded in one cassette at the same time, thereby reducing the cost of purchasing additional cassettes.

1 is a perspective view of a conventional liquid crystal display cassette

FIG. 2 is a front view of FIG. 1

3 is a perspective view of a cassette for a liquid crystal display according to an exemplary embodiment of the present invention.

4 is a front view of FIG. 3

5 is a perspective view for explaining the relationship between the plate and the fixing bar of FIG.

6 is an explanatory diagram for a process of loading a small substrate and a medium substrate;

7 is an explanatory diagram for a process of stacking a large substrate;

 * Explanation of symbols on the main parts of the drawings

31: upper frame 31a: outer plate

31b: center plate 32: lower frame

33: side frame 34a: first slot

34b: second slot 40a: first bolt

40b: 2nd bolt 41a: 1st stopper hole

41b: second stopper hole 50: guide rod

55: screw hole 60a: substrate (small substrate)

70: shelf plate 80: fixed bar

90: stopper

Claims (6)

An upper frame comprising a center plate and an outer plate, the upper frame having two openings by the center plate; A lower frame having the same structure as the upper frame and positioned to face the upper plate; Side frames connected to both corners of the upper frame and the lower frame to face each other; A plurality of first slots formed in each of the side frames; A plurality of guide rods connected in parallel with the center plate between the openings of the upper frame and the openings of the lower frame, respectively; A first loading space and a second loading space surrounded by the upper frame, the lower frame and the side frames, the first loading space being divided based on a center plane connecting the center plates of the upper frame and the lower frame; A plurality of shelf plates provided at least two or more in the first and second loading spaces to face each of the side frames, the upper and lower parts being movable to the guide rods; And a second slot formed at one side of each shelf plate to face the first slot of the side frame. The method of claim 1, And a plurality of screw holes and a plurality of first stopper holes penetrating through the center plate of the upper frame and the lower frame. The method of claim 1, And a plurality of screw holes and a plurality of second stopper holes penetrating the outer plate are formed at one side of the outer plate parallel to the center plate among the outer plates of the upper frame and the lower frame. The method of claim 1, And a plurality of stoppers detachable from the first stopper hole and the second stopper hole. The method of claim 1, And upper and lower portions of the shelf plates, and fixing bars for fixing the shelf plates, the upper frame, and the lower frame to each other. The method of claim 5, wherein And the fixing bar is formed perpendicular to the guide rod, and a groove is formed on a contact surface of the fixing bar at a portion where the fixing bar and the guide rod cross vertically.