JP2003117796A - Sliding type panel cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding type panel cleaner capable of cleaning the surface side of the edge of a panel, and usable in combination with a rotary type panel cleaner. SOLUTION: This sliding type panel cleaner 10 cleans the surface side of the edge of the panel, and is composed of a panel holding means 20 for holding the panel 60, a polishing head 40 having two knives 41 and 42 pushed against the surface side of the edge of the panel 60 held by the panel holding means 20, and a unidirectional moving means 30 for moving the polishing head 40 straight along the edge of the panel 60. The two knives 41 and 42 are slantingly arranged by a prescribed angle to a surface of the panel 60 in the respectively mutually different directions. This prescribed angle falls within a range of 30 deg. to 60 deg..

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a computer,
A panel cleaner for finishing the surface of a liquid crystal cell used in a liquid crystal display device (LCD) such as a television, a mobile phone, a calculator, and a watch, in a clean and smooth manner, in particular,
The present invention relates to a slide type panel cleaner in which a knife is applied to the front surface side of a panel near a sealed portion of a liquid crystal cell in which liquid crystal is sealed between two panels to clean the front end of the liquid crystal cell.

[0002]

2. Description of the Related Art A liquid crystal cell used in a liquid crystal display device such as a computer is
Generally, after a TFT liquid crystal panel and a color filter are pasted together, liquid crystal is sealed between these panels. After that, polarizing plates are pasted on both sides of this liquid crystal cell to surround the liquid crystal cell. Is mounted with a TCP and a printed circuit board, a backlight is mounted on the TFT liquid crystal panel side, and finally a frame is mounted to be used as various liquid crystal display devices.

In a TFT liquid crystal panel, electrodes and transistors are formed on the glass substrate, leaving an L-shaped region for transfer formation along two sides of the glass substrate, and an alignment film is formed on the electrodes and transistors. It is a panel whose film surface is rubbed. On the other hand, the color filter applies a pigment resist on a glass substrate, repeats exposure, development and resist removal to form three colors and form an alignment film on it.
This is a panel obtained by rubbing the surface of this alignment film.

To bond these panels, a thermosetting sealing material is applied to the periphery of the alignment film of the TFT liquid crystal panel to a height of about 30 μm using a dispenser, and transferred to an L-shaped area on the glass substrate. After forming and spraying the spacer material uniformly on the area on the alignment film surrounded by the sealing material, the alignment film of the TFT liquid crystal panel is formed until a space of about 5 μm is formed between the alignment films of these panels. This is performed by pressing the alignment film of the color filter against the sealing material applied to the periphery.

The sealing material is applied so that a gap having a width of 10 to 20 mm is formed on one side of the glass substrate other than the L-shaped region around the alignment film of the TFT liquid crystal panel.
Liquid crystal is sealed between the bonded panels through this gap (this is called a sealing port).

After the liquid crystal is sealed between the panels, an ultraviolet curable resin is applied to the sealed port, and the sealed port is sealed by using an ultraviolet lamp. Both sides of the cell are cleaned.

If the surface of the liquid crystal cell has a foreign substance, the light is shielded or polarized by the foreign substance on the surface and the display performance expected at the design stage cannot be exhibited. Therefore, this cleaning is performed in a liquid crystal display device (LCD). This is an important step in the module manufacturing process.

To clean both sides of the liquid crystal cell, a polishing head having a contact roller for pressing the running polishing tape against the surface of the panel held by the panel holding means, a means for rotating the polishing head, and a polishing head are moved up and down. One-sided using a rotary panel cleaner composed of means for moving the polishing head in the direction and means for moving the polishing head back and forth and left and right.

To clean a panel using this rotary type panel cleaner, a polishing tape is pressed against the surface of the panel held by the panel holding means via a contact roller, and while running, the polishing head is made to meander on the surface of the panel. Then, the entire surface of the panel is cleaned.

However, in such a rotary type panel cleaner, a foreign substance adhered to the surface side of the panel in the vicinity of the sealed portion of the liquid crystal cell (the foreign matter adhered when the sealing port is sealed with a sealing material such as an ultraviolet curable resin) Etc.) cannot be sufficiently removed, and the entire surface of the liquid crystal cell cannot be finished cleanly and smoothly.

The present invention has been made in view of the above problems, and therefore provides a slide type panel cleaner which can clean the surface side of the edge of the panel and can be used in combination with a rotary type panel cleaner. The purpose is.

[0012]

The present invention for achieving the above object is a slide type panel cleaner for cleaning the surface side of the edge of a panel, which is a panel holding means for holding the panel, and the panel holding means. It comprises a polishing head having two knives pressed against the surface side of the edge of the panel held by the means, and a unidirectional moving means for moving the polishing head straight along the edge of the panel.

As the panel holding means, a known means is used, in which the panel is fitted in a frame having a recessed portion formed in the center thereof so as to match the size and thickness of the panel, and the panel is held by this frame. , With a thickness of 4 to match the thickness of the panel
A means is used in which the panel is sandwiched between four cell guides and the panel is held by these four cell guides.

The polishing head comprises two knives, a knife mount for mounting these knives, and an elevating means for vertically moving the knife mount. The elevating means is preferably a piston cylinder, and this piston cylinder is fixed above the supporting plate that is the skeleton of the polishing head so that the shaft of the piston cylinder is on the lower side, and the knife is attached to the shaft of this piston cylinder. The mount is attached. The knife mount adjusts the air pressure in the piston cylinder,
The shaft expands and contracts, which causes it to move vertically. Also, by adjusting the air pressure in the piston cylinder,
The pressure of the knife pressed against the surface of the panel is adjusted accordingly.

The two knives of the polishing head are respectively
Arranged in different directions from each other, the knives are respectively arranged at an angle with respect to the surface of the panel. This predetermined angle is in the range of 30 ° to 60 °.

As a one-way moving means for moving the polishing head straight along the edge of the panel,
Known ball screw means are used.

The slide type panel cleaner of the present invention can be combined with a rotary type panel cleaner.

As a rotary panel cleaner to be combined with the slide panel cleaner of the present invention, a rotary panel cleaner having a contact roller for pressing a running polishing tape against the surface of the panel held by the panel holding means. Polishing head for polishing, a means for rotating the polishing head for the rotary panel cleaner, a means for moving the polishing head for the rotary panel cleaner up and down, and a polishing head for the rotary panel cleaner. Known rotary panel cleaners are used which consist of means for moving left and right.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1: The surface side of the edge of the panel (the surface side of the panel near the sealed portion of the liquid crystal cell) is cleaned using the slide type panel cleaner of the present invention.

<Sliding Panel Cleaner> As shown in FIG. 1, the sliding panel cleaner 10 of the present invention.
Is a panel holding means 20 for holding the panel 60,
Two knives 41 pressed against the surface of the panel 60,
And a unidirectional moving means 30 for moving the polishing head 40 straight along the edge of the panel 60.

<Panel Holding Means> Panel holding means 20
As shown in FIGS. 5A and 5B, the front and rear cell guides 21 and 22 arranged at the front and rear, the side cell guides 23 and 24 arranged at the left and right, and these cell guides 21 , 22, 23, and 24, a suction device (not shown) for sucking the panel 60 in a rectangular frame formed as shown in the drawing.
24 are arranged on the front, back, left and right of the panel 60 as shown in the figure. The height of these cell guides 21 to 24 is the same as that of the panel 6
It is arranged to be at the same height as 0.

The panel 60 is held by these cell guides 2.
The back side surface of the panel 60 is sucked by a suction device (not shown) in a frame formed by arranging 1, 22, 23, and 24 in the front, rear, left, and right directions as illustrated.

Although not shown, the panel holding means 20 adsorbs a panel transferred to a predetermined position by a belt conveyor having air permeability, and a panel 60 adsorbed to the predetermined position.
As described above, the front and rear cell guides 21 and 22 and the side cell guides 23 and 2 are provided so as to surround the left and right front and rear.
It is possible to use a mechanism having a mechanism for moving 4 and 4 in order (for example, see the device described in JP 2001-198753 A).

As the panel 60, preferably, as shown in FIGS. 5 (a) and 5 (b), a color filter 61 and an L-shape for transfer formation along two sides of the glass substrate are provided via a sealing material 64. TFT liquid crystal panel 6 having a region 63 of
A liquid crystal cell 60 in which 2 and 2 are bonded together is used. As shown in FIG. 5B, the liquid crystal cell 60 has an encapsulation portion 65 in which an encapsulation opening provided for enclosing the liquid crystal between these two panels 61 and 62 is sealed with an ultraviolet curable resin or the like. The slide type panel cleaner 10 of the present invention cleans the surfaces of the panels 61 and 62 (that is, the surface side of the edge of the panel 60) near the enclosing portion 65,
The foreign matter such as the ultraviolet curable resin attached to the surface side of the edges of the panels 61 and 62 is removed.

<Polishing Head> The polishing head 40 moves the two knives 41, 42, a knife mount 43 for mounting these knives 41, 42, and the knife mount 43 in the vertical direction (direction of arrow Z). The lifting / lowering means 50 is provided for moving.

The two knives 41 and 42 are arranged in directions different from each other, and are arranged at a predetermined angle with respect to the surface of the liquid crystal cell 60 as shown in the drawing. This angle is preferably in the range 30 ° -60 °.

The knife mount 43 is attached to the support plate 47 via the elevating means 50, as will be described below.

The raising and lowering means 50, as shown in FIGS.
The knife mount 43 is composed of a piston cylinder 51 fixed vertically above the support plate 47, and the knife mount 43 has two legs extending downward from the lower surface of the leg mount 45 attached to the tip of the shaft 52 of the piston cylinder 51. It is attached to the lower ends of 44 and 44.

The piston cylinder 51 is connected to an external air supply means 53 (pump or the like) as shown by a broken line, and the air supply means 53 is driven to adjust the air pressure in the piston cylinder 51, thereby making the shaft. 52 is expanded and contracted, and the legs 44, 44 move up and down through a leg insertion opening provided in a guide block 46 fixed below the support plate 47, and a knife mount 43 attached to the lower ends of the legs 44, 44.
Moves in the vertical direction (direction of arrow Z).

<One-way moving means> As the one-way moving means 30 for moving the polishing head 40 straight in the left-right direction (direction of arrow X), a known ball screw means is preferably used.

As shown in FIGS. 1, 3 and 4, the ball screw means includes a ball screw 31 horizontally rotatably mounted on the housing H, a motor 32 for driving the ball screw 31, and two horizontally mounted on the housing H. Support plate 47 to which the guide rails 33, 33 and the polishing head 40 of FIG.
A support block 34 horizontally attached to the back side of the guide block 35, a guide block 35 fixed to the upper surface of the support table 34 and provided with a screw hole for screwing with the ball screw 31, and a lower surface of the support table 34, and the guide rails 33, 33. The guide block 36 is provided with a rail insertion port through which the rail is smoothly inserted. When the motor 32 is driven, the polishing head 40 moves left and right along the guide rail 33. Here, the piston cylinder as described above may be used as the one-way moving means 30.

<Panel Cleaning> The cleaning of the surface of the panel (reference numerals 61 and 62) near the sealing portion 65 of the liquid crystal cell 60 will be described.

First, the liquid crystal cell 60 is attached to the panel holding means 20.
To hold. At this time, the sealing portion 65 of the liquid crystal cell 60 is positioned on the front side.

The air supply means 53 is driven, the air pressure in the piston cylinder 51 is adjusted, the polishing head 40 is moved downward, and the knives 41 and 42 are pressed against the surface side of the edge of the liquid crystal cell 60. Here, the pressure of the knives 41 and 42 pressed against the surface side of the edge of the liquid crystal cell 60 is preset by adjusting the air pressure in the piston cylinder 51.

Next, the motor 32 is driven to move the polishing head 40 in the left-right direction (direction of arrow X). As a result, the polishing head 40 moves along one side of the liquid crystal cell 60 where the sealing portion 65 is provided, and the surface of the panel 61 (or 62) near the sealing portion 65 is cleaned. At this time, a lubricating liquid such as water is supplied onto the liquid crystal cell 60 through a nozzle (not shown). Here, the horizontal movement of the polishing head 40 may be one reciprocation. In addition, the polishing head 40
The distance over which the edge of the liquid crystal cell 60 moves on the surface side can be appropriately determined by the one-way moving means 30.

As a result, the cleaning of the surface on one side of the panel near the sealing portion 65 of the liquid crystal cell 60 is completed. The polishing head 40 reciprocating on the surface side of the edge of the liquid crystal cell 60 is moved upward by the elevating means 50,
Then, the liquid crystal cell 60 is taken out from the panel holding means 20. Then, when cleaning the surface on the other side of the panel in the vicinity of the sealing portion 65 of the liquid crystal cell 60, the front and back of the liquid crystal cell 60 are reversed to cause the liquid crystal cell 60 to serve as the panel holding means 20, and Perform cleaning in this way.

Embodiment 2 A panel cleaner in which the above-mentioned slide type panel cleaner of the present invention and a rotary type panel cleaner are combined is used, and the surface side of the edge of the panel (the panel near the sealing portion of the liquid crystal cell) is used. Clean the front side).

As shown in FIGS. 6 to 8, the second embodiment is a panel cleaner in which a slide type panel cleaner according to the present invention as shown in FIGS. 1 to 7 and a rotary type panel cleaner are combined. The whole surface is cleaned with a rotary type, and foreign matter adhering to the surface side of the edge of the panel is removed with a sliding type. Here, the slide type panel cleaner shown in FIGS. 1 to 7 is different from that shown in FIGS. 1 to 7 except that the one-way moving means is attached to the two-way moving means for moving the rotary type panel cleaner back and forth and left and right (directions of arrows X and Y). It has the same structure as the slide type panel cleaner and the panel holding means thereof.

<Panel Cleaner> A rotary panel cleaner to be combined with the illustrated panel cleaner 70 is a delivery roller 73 having a cartridge around which the polishing tape T is wound, and a panel holding means 20 for holding the polishing tape T delivered from the delivery roller 73. It has a polishing head 71 composed of a contact roller 72 for pressing it against the panel held by the roller and a take-up roller 74 for taking up the polishing tape T sent from the sending roller 73 (for example, Japanese Patent Laid-Open No. 11-19859). (See the device described in the publication).

The polishing head 71 has the above-described piston cylinder 51 and shaft 52 as described later.
The up-and-down moving table 7 which is moved up and down (direction of arrow Z) by the piston cylinder means 78 having the same configuration as
The spindle 7 connected directly below the spindle 75 attached to the motor 7 and connected to the motor 76 by a belt by driving the motor 76 attached to the vertical moving table 77.
5 rotates, and the polishing head 71 rotates. Here, the upper part of the vertical moving table 77 is open, and a motor (not shown) for rotating the take-up roller 74 of the polishing head 71 causes the spindle 7 to move from above the vertical moving table 77.
Power is supplied through a hollow rotary shaft (not shown) of No. 5.

The vertical moving table 77 is vertically movably arranged via a rail in the hollow portion of the horizontal moving table 80 having a hollow portion penetrating in the vertical direction.
8 is fixed to a shelf projecting from the rear of the left-right moving table 80.

The piston / cylinder means 78 is connected to a vertically movable table 77 arranged in the hollow portion of the horizontally movable table 80 through a vertically long slit 81 provided at the rear of the horizontally movable table 80, and the piston / cylinder means 78 is provided.
The vertical moving table 77 is moved in the vertical direction by driving, and the polishing head 71 is lowered downward, so that the surface of the panel held by the panel holding means 20 similar to that of the first embodiment is
The polishing tape T can be pressed through the contact roller 72.

The left / right moving base 80 has an opening 87 of a front / back moving base 84 having an opening 87 elongated in the left / right direction (direction of arrow X).
It is arranged so that it can be moved in the left-right direction. Rails 83, 83 extending in the left-right direction are attached to the front-rear side of the opening 87 on the front-rear moving stand 84, and the up-down moving stand 77 passes the front-rear moving stand 8 through these rails 83, 83.
Placed on the 4th. The left and right moving base 80 is the front and rear moving base 84.
It is moved in the left-right direction by the ball screw means 82 provided above.

Further, as shown in the figure, the polishing head 40 of the slide type panel cleaner 10 is fixed to the shelf protruding from the front of the left and right moving table 80, and the slide type panel cleaner 10 drives the ball screw means 82. By doing so, it moves in the left-right direction together with the left-right moving table 80.
(Here, the ball screw means 82 also serves as the one-way moving means 30 described above.)

The front-rear moving table 84 is mounted on the left and right walls of the housing H on the shelves 88 and 89, respectively, in the front-rear direction (arrow Y).
It is arranged to be movable in the direction of. These shelves 88, 89
Rails 86, 86 extending in the front-rear direction are attached to the front and rear ends, respectively, and the front-rear moving table 84 is arranged on the shelves 88, 89 via the rails 86, 86. The front-rear moving table 84 is a ball screw means 8 provided on the shelf 89.
It is moved back and forth by 5.

<Panel Cleaning> Using the panel cleaner 70, the entire surface of the liquid crystal cell as shown by reference numeral 60 in FIG. 5 and the surface of the panel near the sealing portion (shown by reference numerals 61 and 62 in FIG. 5). Clean the side. In the following, the entire surface of the liquid crystal cell is cleaned with a rotary type panel cleaner, and then the surface side of the panel near the sealing portion of the liquid crystal cell is cleaned with the sliding type panel cleaner of the present invention. The surface of the panel near the sealed portion of the liquid crystal cell may be cleaned with a cleaner, and then the entire surface of the liquid crystal cell may be cleaned with a rotary panel cleaner.

First, the liquid crystal cell is held by the panel holding means 20. At this time, the sealing portion of the liquid crystal cell is located on the front side.

By driving the ball screw means 82, 85 to determine the position of the polishing head 71, the piston cylinder means 7
8, the polishing head 71 is moved down, the polishing tape T is pressed against the surface of the liquid crystal cell via the contact head 72, and the polishing tape T is wound around the winding roller 74, while the motor 76 is driven. Ball screw means 8
2, 85 are driven to meander over the surface of the liquid crystal cell while rotating the polishing head 71 to clean the entire surface of the liquid crystal cell.

Next, the piston cylinder means 78 is driven to raise the polishing head 71, and the ball screw means 8 is moved.
Driving 2,85, slide type panel cleaner 10
The position of the polishing head 40 of the polishing head 40 is determined, and thereafter the knives 41, 42 of the polishing head 40 are processed in the same manner as in the first embodiment.
Is pressed against the surface side of the edge of the panel of the liquid crystal cell and moved in the left-right direction (direction of arrow X) to clean the surface side of the panel near the sealed portion of the liquid crystal cell. As a result, the cleaning of the entire surface of the liquid crystal cell 60 and the surface on one side of the panel in the vicinity of the sealing portion 65 is completed.
When cleaning the surface of the other side of the liquid crystal cell 60, the front and back of the liquid crystal cell 60 are reversed and the liquid crystal cell 60 is reversed.
Then, the panel holding means 20 is set, and cleaning is performed as described above.

Embodiment 3 A panel cleaner in which the above-mentioned slide type panel cleaner of the present invention and a rotary type panel cleaner are combined is used, and the surface side of the edge of the panel (the panel near the sealing portion of the liquid crystal cell) is used. Clean the front side). In the second embodiment described above,
The slide type panel cleaner of the present invention is provided with a left and right moving table 80.
1 is fixed to the front side of the panel holding means, but in the third embodiment, it is further fixed to the lateral side of the left and right moving base 80, and a total of two slide type panel cleaners are used to fix the panel holding means 2.
One or both of the front edge and the rear edge of the liquid crystal cell held at 0 is appropriately selected for cleaning.

<Panel Cleaner> The panel cleaner of the third embodiment has a second slide type panel cleaner (see FIG. 2) on one of the left and right side walls of the left and right moving base 80 of the panel cleaner 70 of the second embodiment. This second slide type panel cleaner has the same configuration as the slide type panel cleaner 10 of the above-described first and second embodiments, but is not shown. The direction moving means is also used as the ball screw means 85 for moving the front-rear moving table 84 in the front-rear direction. By driving the ball screw means 85, the second slide type panel cleaner causes the left-right moving table 90 and the front-rear moving table to move. It moves in the front-back direction together with 84.

<Panel Cleaning> The liquid crystal cell is held by the panel holding means 20. At this time, the sealing portion of the liquid crystal cell is located on the front side or the side side.

When the sealing portion of the liquid crystal cell is located on the front side, the cleaning of the surface side of the panel near the sealing portion of the liquid crystal cell is performed in the same manner as in the second embodiment. When the sealing portion of the liquid crystal cell is located on the side, cleaning of the surface side of the panel near the sealing portion of the liquid crystal cell drives the ball screw means 82, 85 to drive the second slide type panel cleaner. The position of the polishing head is determined, and the knife of the polishing head is pressed against the surface side of the edge of the panel of the liquid crystal cell in the same manner as in Embodiment 1 described above, and the ball screw means 85 is driven to move in the front-back direction (arrow). In the Y direction), the surface side of the panel near the sealed portion of the liquid crystal cell is cleaned.

The cleaning of the entire surface of the liquid crystal cell is performed in the same manner as in the second embodiment, and the cleaning by the rotary type panel cleaner 71 is performed before or after the cleaning by the second slide type panel cleaner. This is optional as in the second embodiment. Further, when cleaning the surface of the other side of the liquid crystal cell 60, the front and back of the liquid crystal cell 60 are reversed so that the liquid crystal cell 60 serves as the panel holding means 20 and the cleaning is performed as described above.

Since the slide type panel cleaner of the present invention is constructed as described above, it is possible to clean the surface side of the edge of the panel and to use it in combination with the rotary type panel cleaner.

[Brief description of drawings]

FIG. 1 is a front view of a panel cleaner including a slide type panel cleaner of the present invention.

FIG. 2 is a front view of the slide type panel cleaner of the present invention shown in FIG.

FIG. 3 is a side view of the sliding panel cleaner of the present invention of FIG.

FIG. 4 is a rear view of the sliding panel cleaner of the present invention of FIG.

5 (a) is a perspective view of a panel holding means of the slide type panel cleaner of the present invention shown in FIG.
FIG. 5B is an enlarged view of a portion indicated by reference character A in FIG.

FIG. 6 is a front view of a panel cleaner including the slide panel cleaner of the present invention and a conventional rotary panel cleaner.

FIG. 7 is a plan view of the panel cleaner of FIG.

8 is a cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

10 ... Sliding panel cleaner of the present invention 20 ... Panel holding means 21 ... Front cell guide 22 ... Rear cell guide 23, 24 ... Side cell guide 30 ... Means of transportation 31 ... Ball screw 32 ... Motor 33 ... Rail 34 ... Support stand 35 ... Guide block 36 ... Guide block 40 ... Polishing head 41, 42 ... Knife 43 ... Knife mount 44 ... legs 45 ... Leg mount 46 ... Guide block 47 ... Support plate 50 ... Elevating means 51 ... Piston cylinder 52 ... Shaft 53 ... Air supply means 60 ... Panel or liquid crystal cell 61 ... Color filter 62 ... TFT liquid crystal panel 63 ... Transfer molding area 64 ... Sealing material 65 ... Sealing part 70 ... Panel cleaner 71 ... Polishing head 72 ... Contact head 73 ... Delivery roller 74 ... Winding roller 75 ... Spindle 76 ... Motor 77 ... Vertical moving platform 78 ... Piston cylinder means 82, 85 ... Ball screw means 80 ... Left and right moving platform 81 ... Slit 83 ... Rail 84 ... Front-rear moving platform 86 ... Rail 87 ... Opening 88, 89 ... Shelves H ... Housing T ... Abrasive tape X: Left and right direction Y: front-back direction Z: Vertical direction

Claims (8)

[Claims] 1. A slide type panel cleaner for cleaning a front surface side of an edge of a panel, comprising panel holding means for holding the panel, and pressing against a front surface side of the edge of the panel held by the panel holding means. A slide type panel cleaner comprising: a polishing head having two knives, and one-way moving means for moving the polishing head straight along an edge of the panel. 2. The polishing head comprises the two knives, a knife mount for mounting these knives, and an elevating means for vertically moving the knife mount. Sliding panel cleaner. 3. The sliding panel cleaner according to claim 1, wherein the two knives are arranged in mutually different directions. 4. The sliding panel cleaner according to claim 3, wherein each of the two knives is arranged at an angle with respect to the surface of the panel. 5. The sliding panel cleaner according to claim 4, wherein the predetermined angle is in the range of 30 ° to 60 °. 6. A panel cleaner in which the slide type panel cleaner according to any one of claims 1 to 5 and a rotary type panel cleaner are combined. 7. A polishing head for a rotary panel cleaner, wherein the rotary panel cleaner has a contact roller for pressing a traveling polishing tape on a surface of the panel held by the panel holding means, and the rotary panel. Means for rotating the polishing head for the cleaner, means for vertically moving the polishing head for the rotary panel cleaner, and means for moving the polishing head for the rotary panel cleaner back and forth and left and right The panel cleaner of claim 6, wherein the panel cleaner comprises: 8. The panel cleaner according to claim 7, wherein the means for moving the polishing head for the rotary type panel cleaner back and forth and left and right also serves as a one-way moving means for the slide type panel cleaner.