KR200279212Y1 - LCD cleaning device - Google Patents

Abstract

The present invention relates to a cleaning device for a liquid crystal panel, and a jet air supply unit for blowing jet air so as to separate the contaminants on the electrode of the liquid crystal panel 10 by receiving compressed air according to the operation of the solenoid valve 120. A dust collecting unit 40 connected to the air distribution line 106 of the service unit 100 and collecting contaminants separated by the action of the jet air supply unit 30, and the jet air supply unit 30. And support means 60 for variably supporting the dust collecting part 40 at a predetermined installation angle or length, wherein the jet air supply part 30 supports a plurality of air distribution lines 102 and 104. The air supply pipe 32 receives the compressed air generated from the compressor 90 through the air, and the antistatic needle 34 is inserted into the air supply pipe 32 to generate ions so as to suppress the generation of static electricity. that It characterized.

Therefore, according to the present invention, the conventional technology only suppresses the generation of static electricity, but by using the powerful jet air to remove the conductive and non-conductive contaminants attached to the electrode portion of the liquid crystal panel to prevent the signal open failure and short failure to ensure the product reliability Can be greatly improved.

Description

Cleaning device of liquid crystal panel

The present invention relates to a cleaning apparatus for a liquid crystal panel, and more particularly, to a cleaning apparatus for a liquid crystal panel that can remove conductive foreign substances from the liquid crystal panel using jet air.

Generally, a liquid crystal panel (LCD panel) is used for a thin film transistor (TFT) or a liquid crystal monitor, which is a gate printed circuit board (Gate PCB) or a source printed circuit by a tab (TAB) formed with a lead pattern. Printed circuit boards (PCBs) such as source PCBs are attached. A liquid crystal display panel driving integrated circuit (IC) is attached to the printed circuit board.

FIG. 1 shows a conventional cleaning apparatus for removing static electricity generated from a liquid crystal panel in a step before attaching the integrated circuit IC.

As shown in FIG. 1, a plurality of liquid crystal panel 1s are stacked and stored in the rack 2, and the liquid crystal panel loading unit 4 is configured such that the liquid crystal panel 1s are loaded one by one onto the transfer table 3.

Ion, which is a means for cleaning the liquid crystal panel 1 before passing from the liquid crystal panel loading section 4 to the pressing portion 9 for pressing an anisotropic adhesive for attaching an IC element not shown to the liquid crystal panel 1 to the liquid crystal panel 1 Pass through the feeder (5).

Here, the ion supply 5 attaches an electrostatic precipitator (not shown) and supplies ions I together with air A. The pressing portion 9 includes an adhesive pressing head 6, a liquid crystal panel mounting table 7, a pressing stand 8, and the like.

As described above, the liquid crystal panel cleaning apparatus according to the related art is connected to the liquid crystal panel loading portion 4 and the pressing portion 9 through the ion feeder 5 irrespective of whether the liquid crystal panel 1 is loaded on the transfer table 3. Air A and ions I are always supplied, and this operation is continued as long as the main air is not shielded. At this time, when the liquid crystal display panel 1 is transferred, positive and negative ions are transferred to the surface of the liquid crystal display panel 1 to suppress the generation of static electricity.

However, conventional cleaning devices are simply the fine foreign matter, because to exclude only the electrostatic property impact of the liquid crystal panel (1) that has been deposited on the electrically conductive electrodes (ITO electrodes) portions of the liquid crystal panel 1, that is, more than 1 to several tens of μ in size If it is not possible to remove the foreign matter having, there is a problem that can cause the open defect and short failure of the signal after attaching the drive integrated circuit (IC) for driving the liquid crystal panel.

Therefore, the present invention was devised to solve the above problems, and an object of the present invention is to improve the quality of the liquid crystal panel by removing conductive contaminants attached to the electrode portions of the liquid crystal panel in the assembling process of the liquid crystal panel. It is providing the cleaning apparatus of a liquid crystal display panel.

The cleaning device for a liquid crystal panel according to the present invention for achieving the above object, the jet air supply unit for blowing the jet air so as to separate the contaminants on the electrode of the liquid crystal panel by receiving compressed air according to the operation of the solenoid valve And a dust collecting part which is separately connected to an air distribution line of the service part and collects contaminants separated by the action of the jet air supply part, and supports to variably support the jet air supply part and the dust collecting part at a predetermined installation angle or length. It comprises a means.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 schematically shows a cleaning apparatus of a conventional liquid crystal panel.

2 is a view schematically showing a cleaning apparatus for a liquid crystal panel according to the present invention.

Explanation of symbols on the main parts of the drawings

10: liquid crystal display panel, 30: jet air supply unit,

32: air supply pipe, 34: antistatic needle,

40: dust collector, 60: support means,

62: first bracket, 62a: long hole,

64: second bracket, 64a: fastening hole,

70: sensor, 90: compressor,

100: service department, 102, 104, 106: air distribution line,

110: check valve, 120: solenoid valve.

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

2 is a view schematically showing a cleaning apparatus for a liquid crystal panel according to the present invention.

In the figure, reference numeral 20 denotes a liquid crystal panel loading unit, which allows the liquid crystal panel 10 to be introduced one by one onto the horizontal carriage 24 from the rack 22 on which the liquid crystal panel 10 is stacked in multiple layers. .

Reference numeral 30 denotes a jet air supply unit, which blows jet air A to receive compressed air according to the operation of the solenoid valve 120 so as to blow out contaminants on the conductive electrode side of the liquid crystal panel 10.

The jet air supply unit 30 may include an air supply pipe 32 receiving compressed air generated from the compressor 90 through a plurality of air distribution lines 102 and 104 connected to the service unit 100, and the air supply pipe An electrostatic needle 34 is inserted into the 32 and generates ions so as to suppress generation of static electricity. Here, the air supply pipe 32 is connected to the output side of the solenoid valve 120, the small check valve 110 is connected to the input side of the solenoid valve 120.

Reference numeral 40 denotes a dust collecting unit, which is connected to the air distribution line 106 of the service unit 100 to collect the contaminants D separated by the action of the jet air supply unit 30.

Reference numeral 50 is the same as a conventional ion supply, which is to supply more ions to the rear end of the air supply pipe 32 of the jet air supply unit 30 and to supply ions directly around the liquid crystal panel 10. Of course, the installation of this part may be omitted.

Reference numeral 60 denotes a support means for supporting the jet air supply 30 and the dust collector 40, which can be varied in angle and length.

That is, a long hole 62a is formed at one side of the first bracket 62, and a fastening hole 64a is formed at one side of the second bracket 64, so that the fastening hole 64a and the first bracket 62 are formed. The fastening means such as a screw (not shown) are coupled to each other so that the long holes 62a of the) are mutually communicated so as to variably adjust the angle and length of the second bracket 64.

In addition, a sensor 70 made of an optical fiber for detecting a loading state of the liquid crystal panel 10 is mounted on the second bracket 64.

In addition, the controller 80 which is a peripheral electric component for driving the components of the apparatus of the present embodiment, a sensor driving power supply (not shown), a sensor amplifier, a power supply for static elimination, and the like are provided.

It looks at the operation relationship of the cleaning apparatus of the liquid crystal panel according to the present invention provided as described above. When the liquid crystal panel 10 is loaded onto the rack 22 to complete loading preparation, the liquid crystal panel 10 is loaded one by one on the transfer table 24 so that the liquid crystal panel 10 may be transferred to a press fitting facility. Meanwhile, the compressed air generated by the compressor 90 is supplied to the jet air supply unit 30 and the dust collecting unit 40 through the air distribution lines 102, 104 and 106 of the service unit 100.

At this time, the liquid crystal panel 10 is detected by the sensor 70, and the detection signal is input to the controller 80 to operate the solenoid valve 120 connected to the jet air supply unit 30.

When the solenoid valve 120 is operated, a strong jet air (A) toward the conductive electrode portion of the liquid crystal panel 10, in particular, through the air supply pipe 32 fixed to the second bracket 64 at a predetermined angle and length. Is sprayed. At this time, various contaminants D buried in the conductive electrode part are separated, and the contaminants D are collected through the dust collecting part 40. Here, if simple compressed air is used, static electricity may be generated due to friction between the liquid crystal panel 10 and the air, and thus air A mixed with ions I generated through the electrostatic needle 34 is supplied and cleaned. It works.

Thereafter, when the liquid crystal panel 10 is transferred to the subsequent process equipment by the transfer table 24 to be out of the detection range of the sensor 70, the room of the solenoid valve 120 is switched and at the same time, the jet air supply unit 30 is switched. The operation of is shielded.

Of course, not only the ion generating action but also the dust collecting action of the dust collecting part 40 is always performed irrespective of the detecting operation of the sensor, and is continuously operated unless the supply of the main air is stopped.

The liquid crystal panel 10 in which the cleaning operation is completed is transferred to a subsequent process, and the anisotropic conductive adhesive is attached to the liquid crystal panel 10, and then the driver integrated circuit for driving the liquid crystal panel is bonded.

This embodiment is not necessarily limited to the above. For example, even if general compressed air other than ionic air is used, there is no problem in a short time of operation, but the use of a long time can destroy the liquid crystal panel 10 due to the generation of static electricity.

In addition, even if the jet air supply unit 30 is provided without the dust collecting unit 40, the contaminants on the liquid crystal panel 10 may be removed. At this time, if contaminants accumulate as convection inside the facility, it may not be cleanly managed in the long term, but the problem may be eliminated by periodic cleaning.

According to the present invention described above, the conventional technology only suppresses the generation of static electricity, but by using the powerful jet air to remove the conductive and non-conductive contaminants attached to the electrode portion of the liquid crystal panel to prevent signal open failure and short failure of the product The reliability can be greatly improved.

Claims (5)

A jet air supply unit for supplying compressed air according to the operation of the solenoid valve to blow jet air to separate contaminants on the electrodes of the liquid crystal panel; A dust collecting unit connected to an air distribution line of a service unit and collecting contaminants separated by the action of the jet air supply unit; And support means for variably supporting the jet air supply part and the dust collecting part at a predetermined installation angle or length, The jet air supply unit includes an air supply pipe receiving compressed air generated from a compressor through a plurality of air distribution lines, and an electrostatic needle that is inserted into the air supply pipe to generate ions so as to suppress generation of static electricity. The cleaning apparatus of the liquid crystal display panel characterized by the above-mentioned. The method of claim 1, And the air supply pipe is connected to an output side of the solenoid valve, and a small check valve is connected to the input side of the solenoid valve. The method of claim 1, The support means includes a first bracket having a long hole, And a second bracket having a fastening hole which can be engaged with each other by facing the long hole of the first bracket. The method of claim 3, And a jet air supply part and a dust collecting part are fixedly coupled to the second bracket. The method of claim 1, And a sensor for detecting a loading state of the liquid crystal panel is mounted on the second bracket.