KR102117265B1 - Bending apparatus for display panel - Google Patents

Abstract

The present invention is to provide a bending device for a display panel to bend a portion of the display panel so that the bezel width of the flexible display device is reduced, a panel fixing unit installed on the base frame to fix the display panel; And a bending part installed on the base frame and bending an area of one side of the display panel supported by the panel fixing part.

Description

Bending device for display panel {BENDING APPARATUS FOR DISPLAY PANEL}

The present invention relates to a bending apparatus for a display panel for bending a part of a display panel displaying an image.

In general, a flexible display device is a next-generation display device because it has the advantage that a pixel is implemented on a thin flexible substrate, such as plastic, to display a desired image even when folded or rolled like paper. And research and development are underway. Such a flexible display device includes a flexible liquid crystal display device, a flexible organic light emitting display device, a flexible electrophoretic display device, or a flexible electrowetting display device. (flexible electro-wetting display device).

1 is a cross-sectional view schematically showing a conventional flexible display device.

Referring to FIG. 1, a conventional flexible display device 1 includes a display panel 10 and a panel driver 20.

The display panel 10 includes an oppositely bonded lower substrate 11 and an upper substrate 12.

The lower substrate 11 is made of a thin flexible substrate such as plastic. The lower substrate 11 includes a display portion 11a formed of a plurality of pixels displaying an image, a non-display portion 11b surrounding the display portion 11a, and a pad portion 11c provided on one side of the non-display portion 11b. Is done by

The display unit 11a includes a plurality of pixels formed for each pixel area defined by replacing a plurality of gate lines and a plurality of data lines. The pad portion 11c is coupled to the panel driving portion 20.

The panel driving unit 20 may be formed of a driving circuit film 21, a driving circuit board 22 and a driving integrated circuit.

The driving circuit film 21 is equipped with a driving integrated circuit that supplies a data signal and a gate signal for emitting the pixels.

The driving circuit board 22 includes driving elements for supplying input image data and a timing synchronization signal to the driving integrated circuit.

The driving integrated circuit displays an image on the display portion 11a by driving each pixel formed in the display portion 11a based on image data and a timing synchronization signal input from the drive circuit board 22 through a plurality of signal input terminals. .

Here, the conventional flexible display device 1 is a panel driving unit 20, that is, the driving circuit film 21 is bent to surround the side of the lower substrate 11, thereby bending the portion of the driving circuit film 21 Since it is disposed on the side of the display panel 10, there is a problem in that the bezel width (W) increases.

The present invention has been devised to solve the above-mentioned problems, and it is a technical problem to provide a display panel bending apparatus capable of bending a portion of the display panel so that the bezel width of the flexible display apparatus is reduced.

In addition, another technical problem of the present invention is to provide a display panel bending apparatus capable of bending a portion of the display panel without damaging the display panel.

In addition to the technical problems of the present invention mentioned above, other features and advantages of the present invention are described below, or it will be clearly understood by those skilled in the art from the description and description.

Bending device for a display panel according to the present invention for achieving the above-described technical problem is installed on the base frame panel fixing portion for fixing the display panel; And a bending part installed on the base frame and bending an area on one side of the display panel supported by the panel fixing part.

According to a solution to the above problems, the present invention can reduce the bezel width of the flexible display device by bending an area on one side of the display panel, and can also bend a portion of the display panel without damaging the display panel. have.

1 is a cross-sectional view schematically showing a conventional display device.
2 is a cross-sectional view schematically showing a display device of the present invention.
3 is a perspective view schematically showing a bending apparatus for a display panel according to a first embodiment of the present invention.
4 is a perspective view schematically showing a bending apparatus for a display panel according to a second embodiment of the present invention.
5 is a perspective view schematically showing a bending apparatus for a display panel according to a third embodiment of the present invention.
6 is a perspective view schematically showing a display panel bent by a clamping means.
7 is a front view schematically showing a bending apparatus for a display panel according to a third embodiment of the present invention.

It should be noted that in this specification, when adding reference numerals to components of each drawing, the same components have the same number as possible, even if they are displayed on different drawings.

On the other hand, the meaning of the terms described in this specification should be understood as follows.

It should be understood that a singular expression includes a plurality of expressions unless the context clearly defines otherwise, and the terms "first", "second", etc. are intended to distinguish one component from another component, The scope of rights should not be limited by these terms.

It should be understood that terms such as “include” or “have” do not preclude the existence or addition possibility of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

It should be understood that the term “at least one” includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" means 2 of the first item, the second item, or the third item, as well as the first item, the second item, and the third item, respectively. Any combination of items that can be presented from more than one dog.

The term "on" is meant to include not only the case where a certain component is formed on the upper surface of another component, but also when a third component is interposed between these components.

"X-axis direction", "Y-axis direction" and "Z-axis direction" should not be interpreted only as a geometric relationship in which the relationship between each other is vertical, and within a range in which the configuration of the present invention can function functionally It means having direction.

Hereinafter, a preferred embodiment of the display panel bending apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view schematically showing a display device of the present invention.

Referring to FIG. 2, the display device 30 includes a display panel 40 and a panel driver 50.

The display panel 40 may be a display panel 40 of a flexible flat panel display device. In the following description, it is assumed that the display panel 40 is an organic light emitting display panel 40 of a flexible organic light emitting display device among flexible flat panel display devices.

The display panel 40 includes a lower substrate 41 and an upper substrate 42 that are opposed to each other.

The lower substrate 41 is a flexible thin film substrate, and may be made of a plastic material or a metal foil. For example, the lower substrate 41 made of plastic is made of any one of polyimide (PI), polyethyleneterephthalate (PET), polyethylenapthanate (PEN), polycarbonate (PC), polynorborneen (PNB), and polyethersulfone (PES). It can be done.

The lower substrate 41 includes a display portion 41a made of a plurality of pixels displaying an image, a non-display portion 41b excluding the display portion 41a, a pad portion 41c provided on one side of the non-display portion 41b, and a display portion It comprises a bending region (41d) formed between the (41a) and the pad portion (41c).

The display portion 41a includes a plurality of gate lines (not shown), a plurality of data lines (not shown), a plurality of driving power lines (not shown), a plurality of pixels (not shown), and a cathode power line (not shown). Is formed.

Each of the plurality of gate lines is formed at regular intervals to cross each of the plurality of data lines, and each of the plurality of driving power lines is formed to be parallel to each of the plurality of gate lines or each of the plurality of data lines. Each of the plurality of pixels is formed in the pixel region defined by the intersecting gate line and the data line to display an image according to the gate signal from the gate line and the data signal from the data line.

Each of the plurality of pixels includes a pixel driving circuit (not shown) connected to the gate line, the data line, and the driving power line, and an organic light emitting element (not shown) connected to the pixel driving circuit and connected to the cathode power line. .

The pixel driving circuit includes a switching transistor (not shown) connected to a gate line and a data line, a switching transistor and a driving transistor (not shown) connected to the driving power supply line, and a capacitor connected to a gate electrode and a source electrode of the driving transistor (not shown) Poems). Here, each transistor may be an a-Si thin film transistor (TFT), a poly-Si TFT, an oxide TFT, an organic TFT, or the like.

The pixel driving circuit supplies the data signal supplied to the data line to the driving transistor according to the switching of the switching transistor according to the gate signal supplied to the gate line to store the gate-source voltage of the driving transistor corresponding to the data signal in the capacitor, , Turn-on the driving transistor with a voltage stored in the capacitor to supply the data current corresponding to the data signal to the organic light emitting device.

Meanwhile, the pixel driving circuit may further include at least one compensation transistor and at least one compensation capacitor for compensating the threshold voltage of the driving transistor.

The organic light emitting device includes a first electrode (eg, an anode electrode) connected to a driving transistor, an organic light emitting layer (not shown) formed on the first electrode, and a second electrode (eg, an organic light emitting layer) formed on the organic light emitting layer. , The cathode (Cathode electrode). The organic light emitting device emits light of luminance corresponding to the data current toward the upper portion of the upper substrate 42 by emitting light by a current flowing from the anode electrode to the cathode electrode by turning on the driving transistor.

The cathode power line may be formed on the entire surface of the display portion 41a to be electrically connected to the cathode electrode of each pixel or may be formed in a pattern form on the display portion 41a. The cathode power line may be formed to be electrically connected to the organic emission layer of each pixel, in which case the cathode electrode is omitted.

The non-display portion 41b is provided in a peripheral area of the display portion 41a to surround the display portion 41a. Here, the non-display unit 41b may be defined as an edge region of the upper substrate 42.

A plurality of gate lines, a plurality of data lines, a plurality of driving power lines, and a plurality of link lines (not shown) electrically connected to each of the cathode power lines are formed on one side of the non-display unit 41b. It is.

The pad portion 41c includes a plurality of pads (not shown) electrically connected to the plurality of link lines.

The bending area 41d is defined as an area between the display portion 41a and the pad portion 41c of the lower substrate 41. A plurality of extension lines (not shown) extending from each of the plurality of link lines and electrically connected to the pad portion 41c are formed in the bending area 41d. The bending region 41d is bent in the rear direction of the lower substrate 41 so as to have a constant curvature by the substrate bending apparatus, and overlaps one lower portion of the upper substrate 42.

The bending shape of the bending region 41d may be formed according to the shape of the implant P adhered to the rear surface of the lower substrate 41. The prosthesis P guides the bending region 41d to be curved to form a curved surface as a curved surface is formed on one side. In addition, the prosthesis P is attached to the lower substrate 41 as an adhesive member such as an adhesive film or an adhesive is formed on the surface, thereby bending the bending region 41d while simultaneously bending the bending region 41d. ). Here, in order to minimize the bezel width of the display device 30, the bending area 41d overlaps one side of the upper substrate 42 or is as close as possible to the outer periphery of the upper substrate 42. desirable.

The upper substrate 42 is made of a transparent plastic material, and is formed to have a relatively small area than the lower substrate 41. The upper substrate 42 is opposed to the rest of the lower substrate 41 except for the bending region 41d of the lower substrate 41 by a transparent adhesive formed on the entire surface of the lower substrate 41.

Meanwhile, an optical film (not shown) may be attached to the upper surface of the upper substrate 42, and the optical film may prevent polarization and / or reflection of external light. The optical film can be omitted.

In addition, a light blocking member (not shown) may be attached to the rear surface of the lower substrate 41, and the light blocking member 41 may have light emitted from the display portion 41a of the lower substrate 41 in the lower direction of the lower substrate 41. To block it from proceeding. The light blocking member may be formed of a black tape or a coating layer made of a light blocking material.

The display panel 40 may further include a touch screen (not shown) attached to the upper substrate 42. In the touch screen, a user's finger (or touch pen) detects coordinates of a touch position according to a resistive type, a capacitive type, or an electromagnetic magnetic type.

Next, the panel driving unit 50 will be described as follows.

The panel driver 50 may be formed of a driving circuit film, a driving circuit board, and a driving integrated circuit.

The driving circuit film is coupled to the pad portion 41c provided in one region of the display panel 40. COF (Chip On Film) may be applied to the driving circuit film, and the driving circuit film includes a driving integrated circuit that generates a data signal and a gate signal for emitting pixels of the display panel 40 and supplies them to the data line and the gate line. It is equipped.

A flexible printed circuit (FPC) may be applied to the driving circuit board, driving elements for supplying image data and timing synchronization signals input from the controller board to the driving integrated circuit, and a protection cap covering the driving elements It can be made including.

The protection cap functions not only to protect the driving elements by covering the driving elements mounted on the driving circuit board, but also to support the display panel 40 and to prevent electrical connection between the driving elements.

One side of the driving circuit film is electrically connected to the pad portion 41c of the lower substrate 41, and the other side is electrically connected to the driving circuit board through the pad portion 41c of the driving circuit film.

The driving integrated circuit is mounted on the driving circuit film by a chip bonding process or a surface mounting process, and is bonded to a plurality of signal supply terminals and a plurality of signal input terminals.

The driving integrated circuit generates a data signal and a gate signal based on image data and a timing synchronization signal supplied from the outside through a plurality of signal input terminals, and supplies the generated data signal and gate signal to a corresponding signal supply terminal to lower the By driving each pixel formed on the display portion 41a of the substrate 41, an image corresponding to image data is displayed on the display portion 41a.

The panel driving unit 50 may be formed of only a driving circuit film by mounting the driving element on the driving circuit film, or may be configured in other forms.

3 is a perspective view schematically showing a bending device for a display panel according to a first embodiment of the present invention, and FIG. 4 is a perspective view schematically showing a bending device for a display panel according to a second embodiment of the present invention. Is a perspective view schematically showing a bending apparatus for a display panel according to a third embodiment of the present invention, and FIG. 6 is a perspective view schematically showing a display panel bent by a clamping means.

3 to 6, the display panel bending apparatus A according to the present invention includes a base frame 100, a panel fixing part 200, and a bending part 500, 600, 700. .

The base frame 100 is formed in a plate shape to support the panel fixing part 200 and the bending parts 500, 600, and 700.

The panel fixing part 200 is installed on the base frame 100 and is spaced apart from the base frame 100 to a predetermined height. The panel fixing part 200 may be formed in a plate shape to support the display panel 40, and may include a first recessed groove 210 that is recessed to correspond to the shape of the display panel 40. The display panel 40 is inserted into the first seating groove 210 to be stably supported by the panel fixing part 200.

The display panel 40 supported by the panel fixing unit 200 is positioned such that the driving circuit film protrudes to the outside, and specifically, the display unit 41a of the display panel 40 is an upper side of the panel fixing unit 200. , The pad part 41c, the bending area 41d, and the panel driving part 50 may be positioned at a position protruding outside the panel fixing part 200.

The panel fixing unit 200 may include a panel fixing member to fix the display panel 40. The panel fixing member may fix a portion supported on the upper side of the panel fixing unit 200 among the entire display panel 40. Specifically, the panel fixing member may fix the remaining portion of the non-display portion 41b and the entire display portion 41a except for the pad portion 41c and the bending region 41d of the display panel 40.

The panel fixing member according to an example may fix the position of the display panel 40 by an adsorption method. To this end, the panel fixing member includes a plurality of first intake holes 220 formed on an upper surface of the panel fixing part 200, and a first suction mechanism (not shown) that sucks air from the first intake holes 220. ). The first suction mechanism may be installed on one of the panel fixing part 200 and the base frame 100, or may be installed outside the base frame 100 and connected to the first intake hole 220. Here, the first intake hole 220 may be formed only in the first seating groove 210 portion of the panel fixing part 200.

The panel fixing member according to another example may fix the position of the display panel 40 in an adhesive manner. To this end, the panel fixing member may be an adhesive pad (not shown) attached to the top surface of the panel fixing portion 200. The adhesive pad may be formed of natural rubber, synthetic rubber, fluorocarbon rubber, or Viton rubber, etc. having adhesive properties. In addition, the adhesive pad may have elasticity. The adhesive pad may cover the entire upper surface of the panel fixing part 200 or may be formed in a plurality to be spaced apart from each other. Here, the adhesive pad may be formed only in the first seating groove 210 portion of the panel fixing part 200.

In this case, in the panel fixing member, the adhesive pad is formed in a ring shape, and additionally a diaphragm (not shown) disposed in the inner space of the adhesive pad, and the panel fixing part through the diaphragm It may be configured to further include a pneumatic mechanism (not shown) for supplying air pressure to the upper side of the (200). The diaphragm is formed in the form of a thin film having elasticity or elasticity, and expands in a dome shape when pneumatically supplied by the pneumatic mechanism, thereby separating the display panel 40 fixed to the adhesive pad from the adhesive pad. Can be.

The panel fixing member according to another example may fix the position of the display panel 40 by an electrostatic method. To this end, the panel fixing member may be an electrode (not shown) installed on the top surface of the panel fixing portion 200. When the power is supplied, the electrode fixes the position of the display panel 40 by constant power, and when the power supply is stopped, the fixing function for the display panel 40 can be removed.

Meanwhile, the bending apparatus A for a display panel according to the present invention may further include a panel lifting means 300 installed under the panel fixing part 200.

The panel lifting means 300 elevates the panel fixing part 200 so that the distance between the base frame 100 and the panel fixing part 200 is changed. The panel lifting means 300 includes a cylinder method using a hydraulic cylinder or a pneumatic cylinder, a ball screw method using a motor and a ball screw, a motor, a rack gear, a pinion gear, and the like. The panel fixing part 200 may be moved up and down using a gear method, a belt method using a motor, a pulley, a belt, or a linear motor using a coil and a permanent magnet. The panel lifting means 300 may include an LM Guide Rail and an LM Guide Block that guide the panel fixing part 200 to move in a straight line.

The bending device A for a display panel according to the present invention may further include a position adjusting means 400 installed on the upper side of the panel fixing part 200.

The position adjusting means 400 may adjust the seating position of the display panel 40 by moving from the upper side of the panel fixing part 200, and may limit the movement of the display panel 40. The position adjusting means 400 may be moved using the cylinder method, the ball screw method, the gear method, the belt method, the linear motor, and the like.

The bending parts 500, 600, and 700 are installed on the base frame 100 to bend one side region of the display panel 40 supported by the panel fixing part 200. Specifically, the bending parts 500, 600, and 700 bend the bending area 41d of the display panel 40. Here, the prosthesis P for setting the curvature of the bending area 41d is formed in an area adjacent to one area of the display panel 40 and is bent by the bending parts 500, 600, and 700. One area of the display panel 40 is fixed to the prosthesis P.

3 and 6, the bending part 500 according to the first embodiment of the present invention includes a clamping means 510 and a clamp moving means 520.

The clamping means 510 may clamp the display device 30, specifically, the driving circuit film. In this case, the clamping means 510 grips an area in the driving circuit film that does not affect the driving of the display panel 40. That is, the clamping means 510 may grip an area where only wiring is disposed except for the driving circuit part.

 To this end, the clamping means 510 includes a first gripper 511, a second gripper 512, a gripper unit 513 and a clamp body 514.

The first and second grippers 511 and 512 clamp a portion of the driving circuit film protruding out of one side of the panel fixing part 200. The first and second grippers 511 and 512 are disposed to face each other, and it is preferable that the clamped portions of the driving circuit film are formed in a column shape extending in a straight line so as to be flat without being wrinkled.

Each of the first and second grippers 511 and 512 may further include grip pads 511 ′ and 512 ′ formed on a contact surface contacting a portion of the driving circuit film. The grip pads 511 ′ and 512 ′ may be formed of a rubber or the like having adhesiveness, elasticity, and / or elasticity, and the driving circuit film is not slipped by increasing frictional force on the driving circuit film. So that it can be clamped effectively. The grip pads 511 ′ and 512 ′ may be attached to the side surfaces and the lower surfaces of the first and second grippers 511 and 512, respectively.

The gripper unit 513 supports the first and second grippers 511 and 512. The gripper unit 513 may include a gap adjusting member 513a that moves at least one of the first and second grippers such that the first and second grippers clamp a portion of the driving circuit film. The gap adjusting member 513a is installed between the first and second grippers 511 and 512 to adjust the distance between the first and second grippers 511 and 512. Accordingly, the gap adjusting member 513a may function such that the first and second grippers 511 and 512 clamp the driving circuit film.

The distance adjusting member 513a may adjust the distance between the first and second grippers 511 and 512 using the cylinder type, the ball screw type, the gear type, the belt type, and the linear motor. have. Accordingly, the clamping means 510 can prevent the clamped driving circuit film from slipping or falling off, and has an easy effect for clamping or unclamping the driving circuit film. The gap adjusting member 513a can be operated manually or automatically.

The clamp body 514 is installed on the clamp moving means 520, and supports the gripper unit 513. The clamp body 514 is transported by the clamp moving means 520, thereby moving the gripper unit 513.

The clamp moving means 520 moves the clamping means 510 such that an area of one side of the display panel 40 is bent. Accordingly, the clamping means 510 clamping the driving circuit film can bend the bending area 41d by moving in the X-axis direction by the clamp moving means 520.

The clamp moving means 520 may move the clamp body 514 using the cylinder method, the ball screw method, the gear method, the belt method, and the linear motor. The clamp moving means 520 may include an LM guide rail and an LM guide block for guiding the clamp body 514 to move linearly.

In the operation sequence according to the first embodiment of the present invention according to the above, first, the clamping means 510 clamps the driving circuit film of the display device 30 stably supported by the panel fixing part 200. Next, the clamp moving means 520 moves the clamping means 510 in the X-axis direction parallel to the upper surface of the panel fixing part 200. Then, an area on one side of the display panel 40 is bent to adhere to the outer surface of the prosthesis P. Then, after the bending area 41d of the display panel 40 is bent, the panel lifting means 300 raises the panel fixing part 200 upward, that is, in the Z-axis direction. Then, one side of the driving circuit film may be positioned adjacent to the rear surface of the display panel 40 at intervals smaller than the thickness of the prosthesis P. The operation sequence according to the first embodiment of the present invention may correspond to some steps of the bending method of the display panel 40.

The bending part 500 may further include a clamp lifting means 530 for elevating the gripper unit 513.

The clamp lifting means 530 is installed on the clamp body 514 to elevate the gripper unit 513. After the bending area 41d is bent, the clamp lifting means 530 lowers the gripper unit 513 downwardly, that is, in the Z-axis direction, so that one side of the driving circuit film has a thickness of the prosthesis P. It may be positioned adjacent to the rear surface of the display panel 40 at smaller intervals. The clamp lifting means 530 is effective in improving the manufacturing efficiency of the display device 30 by easily replacing the above-described role of the panel lifting means 300 in the process of bending the bending area 41d. There is.

The gripper unit 513 may further include a gripper rotating member 513b that rotates the first and second grippers 511 and 512.

The gripper rotation member 513b is installed on the gripper unit 513 to rotate the first and second grippers 511 and 512. Alternatively, the gripper rotating member 513b may rotate the gap adjusting member 513a to rotate the first and second grippers 511 and 512. The axis of rotation in which the first and second grippers 511 and 512 rotate may be formed as a Y axis parallel to a boundary line to which the display panel is bent, as in the accompanying drawings. The gripper rotation member 513b may include a motor. Accordingly, in the bending apparatus A for a display panel according to the first embodiment of the present invention, the clamping means 510 is driven by the clamp moving means 520 from the external space of the display device 30 to the driving circuit. Through the operation of horizontally moving toward the side of the film, the driving circuit film may be automatically implemented to be inserted between the first and second grippers 511 and 512.

As described above, in another operation sequence of the first embodiment, first, the gripper rotation member 513b is such that the first and second grippers 511 and 512 are each positioned in the vertical direction (Z-axis direction). The first and second grippers 511 and 512 are rotated. Next, the clamp moving means 520 moves the clamp body 514 in the horizontal direction (X-axis direction) so that the driving circuit film is inserted between the first and second grippers 511 and 512. . Then, after the first and second grippers 511 and 512 clamp the driving circuit film, the first and second grippers 511 and 512 are horizontally positioned in the gripper rotating member 513b. The first and second grippers 511 and 512 are rotated as much as possible. Here, the process of rotating the first and second grippers 511 and 512 clamping the driving circuit film so as to be horizontally positioned with each other is the same as the process of the clamp lifting means 530 raising the gripper unit 513 Can be performed. Then, the clamp moving means 520 moves the clamp body 514 in the horizontal direction (X-axis direction) so that the bending area 41d is bent. Here, the process in which the clamp moving means 520 moves the clamp body 514 may also be performed simultaneously with the process in which the clamp lifting means 530 raises the gripper unit 513. The operation sequence according to the first embodiment of the present invention may correspond to some steps of the bending method of the display panel 40.

Referring to FIG. 4, the bending part 600 according to the second embodiment of the present invention includes a support stage 610, a stage rotation means 620, and a hinge shaft 630.

The support stage 610 is coupled to the stage rotating means 620 and is disposed on the side of the panel fixing part 200. The support stage 610 is formed in a plate shape to support the driving circuit film protruding outside one side of the panel fixing part 200, and a second seat recessed concavely to correspond to the shape of the driving circuit film being supported. It may include a groove 611. The driving circuit film is inserted into the second seating groove 611 to be stably supported by the support stage 610. More specifically, the support stage 610 is a driving circuit coupled to one side of the pad portion 41c protruding to the outside of the panel fixing portion 200 of the display panel 40 and the pad portion 41c. Support the film. Here, the bending region 41d is not supported.

The support stage 610 may include a film fixing member to fix the position of the driving circuit film.

The film fixing member according to an example may fix the pad part 41c and the panel driving part 50, that is, the driving circuit film by an adsorption method. To this end, the film fixing member has a plurality of second intake holes 612 formed on an upper surface of the support stage 610, and a second suction mechanism (not shown) that sucks air from the second intake holes 612. It is configured to include. The second suction mechanism may be installed on one of the support stage 610 and the base frame 100 or may be installed outside the base frame 100 and connected to the second intake hole 612. Here, the second intake hole 612 may be formed only in the second seating groove 611 portion of the support stage 610.

The film fixing member according to another example may fix the pad part 41c and the panel driving part 50, that is, a driving circuit film by an adhesive method or an electrostatic method. The description of the adhesive method and the electrostatic method of the film fixing member is similar to or the same as the adhesive method and the electrostatic method of the panel fixing member described above, so a detailed description thereof will be omitted.

The stage rotating means 620 is installed on the base frame 100. The stage rotating means 620 is coupled to the support stage 610, the upper surface of the support stage 610 to bend an area on one side of the display panel 40 supported by the support stage 610, the top surface of the panel The support stage 610 is rotated about the hinge shaft 630 to face the upper surface of the fixing part 200. The stage rotating means 620 may be operated using a motor.

The hinge shaft 630 is interposed between the panel fixing part 200 and the support stage 610, and serves as a rotating shaft through which the support stage 610 rotates. Here, the hinge shaft 630 is positioned between the display device 30 and the prosthesis P between the panel fixing part 200 and the support stage 610 facing each other, so that the panel fixing part 200 facing each other ) And the support stage 610 are coupled to maintain a predetermined distance. The bending apparatus for a display panel according to a second embodiment of the present invention further stabilizes the bending region 41d as the panel fixing part 200 and the support stage 610 are coupled by the hinge shaft 630. Can be bent.

7 is a front view schematically showing a bending apparatus for a display panel according to a third embodiment of the present invention.

5 to 7, the bending part 700 according to the third embodiment of the present invention includes a support stage 710, a clamping means 720, a clamp moving means, a stage rotating means 730, a hinge axis, And a gripper moving unit 740, which are mixed, modified, and added to the configuration of the bending parts 500 and 600 according to the first and second embodiments of the present invention. Therefore, hereinafter, only different configurations from the first embodiment and the second embodiment will be described. In describing the third embodiment of the present invention, descriptions of the same or corresponding components as the previous embodiment will be omitted.

First, the bending part 700 according to the third embodiment of the present invention is driven between the first and second grippers 721 and 722 while the gripper unit 723 of the clamping means 720 moves in the Y-axis direction. Insert the circuit film. Accordingly, the clamping means 720 may be implemented such that the driving circuit film is inserted between the first and second grippers 721 and 722 even if the gripper rotating member 513b described in the first embodiment is omitted. . To this end, the gripper moving unit 740 is further included in the bending part 700 according to the third embodiment of the present invention.

First, the support stage 710 has a function similar to that described in the second embodiment described above. However, unlike the description in the second embodiment, the support stage 710 is a driving circuit lying horizontally so that the first and second grippers 721 and 722 insert the driving circuit film from the side. It serves to make the film stand upright or inclined vertically. That is, the support stage 710 may stand the driving circuit film protruding out of the panel fixing part 200. This may be implemented by forming an insertion hole 711 in the support stage 710. The insertion hole 711 is formed in a through shape to connect the upper space and the lower space of the support stage 710 as shown in the accompanying drawings, or in the form of a groove in which the upper surface of the support stage 710 is concave Can be formed. In this case, the insertion hole 711 is formed long in the Y-axis direction, so that one of the first and second grippers 721 and 722 passes to clamp the middle portion of the driving circuit film. As the support stage 710 includes the insertion hole 711, the first and second grippers 721 and 722 may move without limitation between the upper space and the lower space of the support stage 710.

The bending part 700 according to the third embodiment of the present invention clamps a part in which the first and second grippers 721 and 722 do not interfere with the function of the panel driving part, as described in the first embodiment described above. It works.

The stage rotating means 730 rotates the support stage 710 such that the upper surface of the support stage 710 is inclined or perpendicular to the upper surface of the panel fixing part 200. The stage rotating means 730 may be operated using a motor, and may be operated using the cylinder method, the ball screw method, the gear method, the belt method, the linear motor, and the like.

The gripper moving unit 740 moves the gripper unit 723 in the Y-axis direction. Accordingly, the gripper moving unit 740 is a drive circuit film erected as the support stage 710 is rotated by the stage rotating means 730 from the side between the first and second grippers (721, 722) The gripper unit 723 is moved to be inserted therein. Accordingly, the bending apparatus A for a display panel according to the third embodiment of the present invention may be formed to have a reduced overall width W extending in the X-axis direction compared to the first embodiment described above.

The gripper moving unit 740 is installed on the gripper unit 723, wherein the gripper unit 723 is a first body 723a and a second body 723b coupled to the upper side of the first body 723a. ). The gripper moving unit 740 moves the second body 723b from above the first body 723a. To this end, the gripper moving unit 740 may move the gripper unit 723 using the cylinder method, the ball screw method, the gear method, the belt method, and the linear motor. The gripper moving unit 740 may include an LM guide rail and an LM guide block guiding the gripper unit to move linearly.

On the other hand, in the accompanying drawings, although the gripper moving unit 740 moves the gripper unit 723, the gripper moving unit 740 includes the first and second grippers from which the driving circuit film is lateral. Other configurations are possible as long as they can be inserted between (721, 722). For example, the gripper moving unit 740 may be coupled to the panel fixing unit 200 to move the panel fixing unit 200.

The bending part 700 according to the third embodiment of the present invention may further include the gripper rotating unit. Since the gripper rotation unit is similar or identical to the description in the first embodiment, a detailed description will be omitted.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes are possible without departing from the spirit of the present invention. It will be clear to those who have the knowledge of Therefore, the scope of the present invention is indicated by the following claims, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted to be included in the scope of the present invention.

100: base frame 200: panel fixing
210: first seating groove 220: first intake hole
300: panel lift means 400: position adjustment means
500, 600, 700: bending part 510, 720: clamping means
511, 721: first gripper 512, 722: second gripper
513, 723: gripper unit 514: clamp body
520: clamp moving means 530: clamp lifting means
610, 710: Support stage 611: Second seating groove
612: second intake hole 620, 730: stage rotating means
630: hinge shaft 711: insertion hole
740: gripper moving unit

Claims (10)

A panel fixing part installed on the base frame to fix the display panel; And
It is installed on the base frame and includes a bending portion for bending an area of one side of the display panel supported on the panel fixing portion,
The display panel includes a driving circuit film coupled to one region,
The bending portion,
A support stage disposed on the side of the panel fixing portion and fixing the driving circuit film protruding outward from one side of the panel fixing portion;
A hinge shaft interposed between the panel fixing part and the support stage; And
And a stage rotating means installed on the base frame to rotate the support stage around the hinge axis so that one region of the display panel is bent. According to claim 1,
The panel fixing portion is a bending apparatus for a display panel for fixing the display panel so that the driving circuit film protrudes to the outside. According to claim 2,
The bending portion,
Clamping means for clamping the drive circuit film; And
Bending apparatus for a display panel comprising a clamp moving means for moving the clamping means so that one region of the display panel is bent. The method of claim 3,
The clamping means,
First and second grippers for clamping a portion of the driving circuit film protruding outward from one side of the panel fixing part;
A gripper unit including a gap adjusting member that moves at least one of the first and second grippers such that the first and second grippers clamp a portion of the driving circuit film; And
Bending device for a display panel including a clamp body installed on the clamp moving means to support the gripper unit. The method of claim 4,
Each of the first and second grippers includes a grip pad formed on a contact surface in contact with a portion of the driving circuit film, for bending the display panel. The method of claim 4,
The bending unit is installed on the clamp body further comprises a clamp lifting means for elevating the gripper unit Bending apparatus for a display panel. The method of claim 4,
The gripper unit is a bending device for a display panel further comprising a gripper rotating member for rotating the first and second grippers. delete A panel fixing part installed on the base frame to fix the display panel; And
It is installed on the base frame and includes a bending portion for bending an area of one side of the display panel supported on the panel fixing portion,
The bending portion,
A support stage disposed on the side of the panel fixing portion and supporting a driving circuit film protruding outward from one side of the panel fixing portion;
A hinge shaft interposed between the panel fixing part and the support stage;
Stage rotation means installed on the base frame and rotating the support stage about the hinge axis so that the drive circuit film fixed to the support stage is erected; And
A display panel further comprising a gripper moving unit that moves the gripper unit so that the erected driving circuit film is inserted between the first and second grippers clamping a portion of the driving circuit film protruding outside one side of the panel fixing part. Dragon bending device. The method according to any one of claims 1 to 7,
An implant is formed in an area adjacent to an area of one side of the display panel,
A bending apparatus for a display panel, wherein one region of the display panel bent by the bending unit is fixed to the prosthesis.

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