KR101916752B1 - manufacturing method of curved display panel - Google Patents

Abstract

A method of manufacturing a curved display panel according to the present invention includes: a bonding preparation step of adsorbing and fixing a curved glass to a downward projection having the same curvature as that of a curved glass of a fixing part and mounting an adhesive member on a table lower in height than the fixing part; A conveying unit that is horizontally movable by the conveying unit and provided on one side surface of the table on the table and the conveying unit and horizontally moves a roller, which applies pressure to the adhesive member in the direction of the projecting unit, 1 adhesion step; And wherein the table and the roller are moved outwardly of the fixing unit by the conveying unit and the roller is rotated along the curved surface of the protrusion while the same pressure is applied from the one end to the other end at the same speed, Wherein a horizontal inclination and a height of the table and a pressure applied to the roller are adjusted by an adhesive regulating portion provided on the conveying portion and horizontally movable by the conveying portion. .

Description

The present invention relates to a curved display panel manufacturing method,

The present invention relates to a display panel manufacturing method, and more particularly, to a method of manufacturing a curved display panel by adhering an open cell substrate of a flat display panel to a curved glass.

As the information society develops, the demand for display equipment has increased, and various display screen equipment are being developed. The flat panel display device has been widely applied to monitor various devices such as a TV screen or a computer, a game machine in a gambling hall, a screen in an electronic entertainment machine, and the like. Typically, a liquid crystal display (LCD), an organic light emitting diode (OLED), or the like is used.

In recent years, a curved display in which a flat panel display is warped with a constant curvature in one of a horizontal direction and a vertical direction is being released. The curved display has a curved shape with a curved screen, and the viewing distance can minimize the difference between the center and the edge of the screen, thereby increasing the uniformity of the contrast of the screen.

Further, the viewing angle is larger than that of the flat panel display, thereby maximizing the immersion feeling on the screen, thereby providing a rule for viewing a more realistic image. Since the display panel is usually manufactured in a flat shape, various schemes have been proposed when a curved display is required. The most important problem in making a flat panel display panel into a curved surface is to flatten a liquid crystal tempered glass substrate to a certain curvature without being frayed.

Conventionally, a representative method is a method in which a tempered glass substrate is etched by hydrofluoric acid to make the thickness of the substrate to be rough and then formed into a curved surface. The thinner the thickness of the tempered glass substrate, the more flexible it is to utilize the property. However, if the thickness of the substrate is reduced by the etching process before bending the tempered glass substrate, it is easy to bend the tempered glass substrate. However, since the thickness of the substrate is reduced due to the reduced thickness, the tempered glass may be damaged Is high.

These conventional methods are also problematic in that the production cost is increased by the cost of performing the etching process, the cost of the degreasing operation of the polarizing film for the viewing angle, the defect rate of the etching process (about 70% And the work time is also lengthened.

In addition, there is a problem that the etchant penetrates into the glass substrate during etching and breaks the panel, and the display panel provided with the open cell or the ready-made product separated from the existing finished product is attached with the circuit board. It is very inconvenient to handle the circuit board in the etching process There are also some difficulties. The thickness of the glass substrate used in the liquid crystal is becoming thinner and it may not be appropriate to perform etching for thinning.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a flat panel type open cell, which is manufactured by existing manufacturers, And to provide a method for manufacturing a curved display panel at a low cost and a high yield.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

According to another aspect of the present invention, there is provided a method of manufacturing a curved display, comprising: a step of holding a curved glass on a lower protrusion having the same curvature as a curved glass of a fixing part, Laminating preparation step; A conveying unit that is horizontally movable by the conveying unit and provided on one side surface of the table on the table and the conveying unit and horizontally moves a roller, which applies pressure to the adhesive member in the direction of the projecting unit, 1 adhesion step; And wherein the table and the roller are moved outwardly of the fixing unit by the conveying unit and the roller is rotated along the curved surface of the protrusion while the same pressure is applied from the one end to the other end at the same speed, Wherein a horizontal inclination and a height of the table and a pressure applied to the roller are adjusted by an adhesive regulating portion provided on the conveying portion and horizontally movable by the conveying portion. .

Wherein the second bonding step comprises: raising the roller above the table; A step of raising one end of the table and lowering the other end of the table so as to apply a constant pressure to the adhesive member by the roller in the process of bonding the end of the adhesive member to the tip of the protrusion; And a step of lowering the one end portion of the table and raising the other end portion of the table so as to apply a constant pressure to the adhesive member with the roller in the process of adhering the tip portion of the protrusion to the other end portion of the adhesive member can do. Wherein the roller is changed in position in association with the horizontal inclination of the table by the adhesion regulating portion in the second adhesion step, the surface of the roller and the protruding portion is deformed by a pressure applied to the roller, And when the pressure is released, elasticity can be restored to its original state.

The second bonding step may include gradually decreasing the horizontal inclination of the table in the first direction in the process of bonding from the one end of the adhesive member to the tip of the protrusion; Adjusting the table horizontally when it reaches the tip of the projection; And increasing the horizontal inclination of the table in a second direction opposite to the first direction in a process of adhering from the tip of the protrusion of the adhesive member to the other end of the adhesive member .

In the second adhering step, the angle formed by the tangent at the portion where the roller contacts the projection and the direction of the force applied to the roller can be kept the same within a range of 60 to 90 degrees.

Wherein the second bonding step comprises:

Adjusting the horizontal inclination of the table by controlling the first and second height adjusting members whose height is complementarily changed by connecting them at the bottom of the table; And

And controlling the height of the third height adjusting member connected to the lower portion of the roller to adjust the pressure applied to the roller constantly.

Wherein the adhesive preparation step further includes the step of supporting the one end of the adhesive member on the table at the same height as the table, and the second adhesive step is a step of holding the support for the one end of the adhesive member The step of releasing may include the step of releasing.

The fixing portion includes: the protrusion; A cover to which said projection is fixed; A fixing controller for controlling air suction through a path from the suction hole on the surface of the protrusion to the suction hole on the cover to control the suction / fixation of the curved glass to the fixing portion; A rotating shaft coupled to the cover; And a rotation regulating portion for rotating the rotation shaft such that the protrusion is directed downward or upward, wherein a cross section of the suction hole on the surface of the protrusion has a diffusion structure in which the diameter increases in a radially outward direction, And a second curvature higher than the first curvature of the protruding portion is formed at the edge of the suction hole, but the first curvature is pressed by the curved glass to be adsorbed, and when the curved glass is released, May be provided.

Wherein a plurality of suction hole lines formed in the transverse direction of the surface of the protruding portion are symmetrically formed on both sides of the tip of the protruding portion with respect to the tip of the protruding portion and a plurality of guide member mounting grooves The number of the suction holes to perform the suction fixing function and the guide member mounting groove on which the guide member is mounted can be determined according to the size of the curved glass.

Since the etching process for reducing the thickness of the tempered glass substrate is not performed, it is possible to prevent breakage of the tempered glass substrate, the circuit substrate, and the like, and to manufacture a curved display panel having high durability, And the manufacturing cost and manufacturing time can be reduced.

1 is a block diagram of a curved display manufacturing apparatus 100 according to the present invention.
FIGS. 2 and 3 are conceptual diagrams for explaining the structure of the fixing unit 110 for adsorbing / fixing the curved glass in the curved display manufacturing apparatus 100 shown in FIG.
4 is a conceptual view showing an example of the structure of a suction hole 113A-3 provided at a fixing portion of the curved display manufacturing apparatus 100 according to the present invention for suctioning and fixing curved glass.
5 is a conceptual view for explaining a structure for guiding the position of the curved glass on the surface portion of the fixing portion 110 of the curved surface display manufacturing apparatus 100 according to the present invention.
6 is a conceptual view for explaining the insertion of the guiding member and the selective air suction mechanism according to the size of the curved glass when the fixing unit 110 of the apparatus 100 for manufacturing a curved display according to the present invention is unfolded and functions are flattened .
7 is a flowchart illustrating a method of manufacturing a curved display panel using the curved display manufacturing apparatus 100 shown in FIG.
FIGS. 8 and 9 are conceptual diagrams illustrating a manufacturing process of a curved display panel according to the manufacturing method shown in FIG.
6 is a conceptual diagram for explaining the pressing process of the adhesive member of the roller 140 of the curved display manufacturing apparatus 100 shown in FIG.
7 is a flowchart illustrating a method of manufacturing a curved display panel using the curved display manufacturing apparatus 100 shown in FIG. 7 shows a process of an OCA film which is a type of an adhesive member on a curved glass.
FIGS. 8 and 9 are conceptual diagrams illustrating a manufacturing process of a curved display panel according to the manufacturing method shown in FIG.
10 is a conceptual diagram for explaining the pressing process of the adhesive member of the roller 140 of the curved display manufacturing apparatus 100 shown in FIG.

For a better understanding of the present invention, its operational advantages and features, and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings, which form a preferred embodiment of the invention, and the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a block diagram of a curved display manufacturing apparatus 100 according to the present invention. FIGS. 2 and 3 are conceptual diagrams for explaining the structure of the fixing unit 110 for adsorbing / fixing the curved glass in the curved display manufacturing apparatus 100 shown in FIG. 4 is a conceptual view showing an example of the structure of a suction hole 113A-3 provided at a fixing portion of the curved display manufacturing apparatus 100 according to the present invention for suctioning and fixing curved glass. 5 is a conceptual view for explaining a structure for guiding the position of the curved glass on the surface portion of the fixing portion 110 of the curved surface display manufacturing apparatus 100 according to the present invention. 6 is a conceptual view for explaining the insertion of the guiding member and the selective air suction mechanism according to the size of the curved glass when the fixing unit 110 of the apparatus 100 for manufacturing a curved display according to the present invention is unfolded and functions are flattened .

The curved surface display manufacturing apparatus 100 manufactures a curved dip play panel by adhering an open cell of a display panel to a tempered glass through a roller without performing an etching process to reduce the thickness of the tempered glass substrate , It is possible to ensure the manufacture of a highly durable curved display panel with high yield while preventing breakage of the tempered glass substrate and the circuit board, and the production cost and manufacturing time of the curved display panel can be drastically reduced.

The curved display manufacturing apparatus 100 includes a fixing unit 110, a table 120, a transfer unit 130, a roller 140, a horizontal support unit 150, and an adhesion control unit 160. Meanwhile, the components of the curved display manufacturing apparatus 100 shown in this specification are not essential, so that the curved display manufacturing apparatus 100 may have more or fewer components. This also applies to the respective constituent elements constituting the curved-surface-display manufacturing apparatus 100. Hereinafter, each component will be described in detail.

The fixing part 110 can adsorb and fix the curved glass to the downward projecting part 111 having the same curvature as that of the curved glass. The fixing portion 110 includes a cover 112 fixed to the protrusion 111 and the protrusion 111 and a suction port 113A-2 connected to the cover 112 from the suction hole 113A- A fixed adjusting part 113 for controlling suction of air through the path 113A-2 to control the suction / fixing of the curved glass to the fixed part, a rotating shaft 114 coupled to the cover 112, And a rotation regulating unit 115 for rotating the rotation shaft 114 such that the protrusion 111 faces downward or upward.

The structure and operation of the fixed controller 113 will be described in more detail with reference to FIGS. 2 and 4. FIG.

The fixed adjuster 113 is coupled to the cover 112 in a lateral direction and includes a plurality of bodies 113A for air sucking, a hose 113A-1 connected to the connecting holes 113A-1 provided in the plurality of bodies 113A, (113B) and an adsorption control unit (115) for controlling air suction through the hose (113B). Hereinafter, the curved glass absorption mechanism of the fixed adjusting unit 113 will be described.

When the adsorption control unit 115 'starts to suck air in a state where the protrusion 111 of the fixing unit 110 faces upward and the curved glass is positioned on the protrusion 111, Air is sucked through the suction path 113A-2 and the hose 113B, and curved glass is adsorbed and fixed on the surface of the protrusion 111. [ It is preferable that the surface of the protrusion 111 is pressed by the pressure applied by the roller 140, and has elasticity that is restored when the pressure is released.

4 shows an example of the structure of the adsorption hole 113A-3 provided on the surface of the protrusion 111. The adsorption hole 113A-3 has a diffusion structure 113A-4 whose diameter increases in the outward direction, . Since the diffusion structure 113A-4 enables absorption of a wider area of the curved glass, the stability of curved glass absorption / fixing can be enhanced.

An adsorption assist protrusion 113A-5 having a higher curvature R2 than the curvature R1 of the protrusion 111 is formed at the edge of the adsorption hole 113A-3 at a predetermined height H . The suction assist protrusion 113A-5 has elasticity and is pressed by the curved glass at the curvature R1 equal to the curvature R1 of the protrusion when the air is sucked by the fixing adjuster 113, The suction of the air 113 is released, and when the curved glass is removed, the original curvature R2 is returned. Due to the elastic mechanism of the suction assist protrusions 113A-5, the inflow of the outside air during the suction / fixing process of the curved glass can be blocked, so that the stronger suction / fixation to the curved glass can be achieved.

A plurality of guiding member mounting grooves 116 are formed on the surface of the protrusion 111, into which a guiding member 117 for guiding the position of the curved glass can be inserted. When the guiding member 117 is inserted symmetrically into the guiding member mounting groove 116, the position of the curved glass in the left and right direction can be guided around the tip of the protrusion 111. On the other hand, the height at which the guiding member 117 protrudes above the protrusion 111 is preferably lower than the thickness of the curved glass, since the adhesive member should not be adhered to the guiding member 117.

That is, the guiding member mounting groove 116 into which the guiding member 117 is inserted may be varied depending on the size of the curved glass. The inserting position of the guiding member 117 according to the size of the curved glass will be described below with reference to Fig. 6, together with an air suction control function for each body 113A of the fixed regulator 113. Fig.

 In the example shown in FIG. 6, six transverse bodies for air suction are provided symmetrically with respect to the most advanced stage, and four transverse direction guide member mounting grooves are formed at the two ends And are symmetrically provided. In each of the six bodies, a plurality of pairs of suction holes arranged in the transverse direction of the protrusion 111 are provided symmetrically about the tip of the protrusion 111.

First, in the case of a curved glass having a length of 40 inches, air is sucked symmetrically with respect to all three left and right bodies with respect to the extreme end of the protrusion 111, A guiding member is inserted into the guiding groove. In the case of a curved glass having a length of 30 inches, air is sucked into two of three bodies symmetrically with respect to the extreme end of the protrusion 111, The guiding member is inserted into the guiding groove on the inner side.

As described above, the curved surface display manufacturing apparatus 100 according to the present invention is designed such that the number of the suction / fixing modules arranged in the transverse direction of the fixing part 110 according to the size of the curved glass is symmetric with respect to the tip of the projection 111 And it is possible to adjust the position of the curved glass guiding member, thereby enabling efficient operation of the curved glass of various sizes.

A plurality of suction holes formed in the lateral direction of the surface of the protrusion 111 are symmetrically formed on both sides of the tip of the protrusion 111 on the surface of the protrusion 111, A plurality of guide member mounting grooves formed in the lateral direction of the surface of the protrusion 111 are formed symmetrically on both sides with respect to the tip of the protrusion 111. [ According to the size of the curved glass, the number of the suction hole lines symmetrically performing the suction fixing function based on the tip of the protrusion 111 and the guide member mounting groove on which the guide member is mounted can be determined.

The table 120 is provided on the conveyance unit 130 at a lower height than the fixing unit 110 and serves to lift the adhesive member to be adhered to the curved glass that is attracted / fixed by the fixing unit 110 . The table 120 can be moved horizontally by the transfer unit 130 and its horizontal inclination can be adjusted by the adhesion adjusting unit 160. [ It is preferable that the adhesive member which raises the surface of the table 120 thereon has a strong surface friction force with respect to the adhesive member to such an extent that the adhesive member is not moved by the inclination of the table 120. [

The adhesive member loaded on the table 120 may include an adhesive layer used to bond other members to the curved glass, as well as a non-adhesive layer adhered to the curved glass by such adhesive material. A representative example of the adhesive layer is an optically clear adhesive (OCA) film, and the non-adhesive layer may include an open cell of a display panel, a touch panel layer, or the like. However, the scope of the present invention is not limited thereto.

The transfer unit 130 changes the horizontal position of the table 120 under the fixing unit 110 according to the adhesion process of the adhesive member. Since the roller 140, the horizontal support 150 and the adhesion adjusting part 160 are also provided on the transferring part 130 in addition to the table 120, the transferring part 130 can transfer the table 120 horizontally The horizontal position of the roller 140, the horizontal support 150, and the adhesion regulating unit 160 are also changed.

The conveyance unit 130 includes a conveyance rail 131, a base 132 coupled to the conveyance rail and horizontally moved by rotation of the conveyance rail 131, And a rotational force providing unit 134 for providing a rotational force to the feed rail 133. [ Meanwhile, the transport unit 130 shown in this specification is only one embodiment of the present invention, and the scope of the present invention is not limited thereto.

The roller 140 may be provided on one side surface of the table 120 on the transfer unit 130 and horizontally moved by the transfer unit 130. In the process of adhering the adhesive member, The same pressure can be applied to the member in the same direction in the direction of the projection 111. At this time, the pressure equalization by the roller 140 may be maintained by the adhesion regulating unit 160. The position of the roller 140 may be changed by adjusting the horizontal inclination of the table 120. In addition, the surface of the roller 140 is preferably pressed to a certain depth by the pressure of the roller 140, and has elasticity to return to the original state when the pressure is released.

The horizontal support part 150 is provided on an adjacent side surface of the roller 140 on the transfer part 130. In the preparation step of adhesion, one end of the adhesive member, which is placed on the table 120, . And the position of one end of the adhesive member can be guided. This means that one end of the adhesive member is guided without departing from the table 120 in a state where the one end of the adhesive member is placed on the table 120. [

On the other hand, in the process of performing the substantial adhesion, the lowering of the table 120 is lowered to eliminate the horizontal support of the one end of the adhesive member on the table 120. At this time, the horizontal support of the roller 140 with respect to the adhesive member is maintained, and the pressure of the adhesive member by the roller 140 can be stabilized by such a mechanism. The height adjustment of the horizontal support part 150 may be performed by the adhesion adjustment part 160.

The adhesion adjusting unit 160 is provided on the transferring unit 130 and is horizontally moved by the transferring unit 130 to adjust the horizontal inclination of the table 120 according to the adhesion process of the adhesive member. For example, in the process of bonding the adhesive member to the tip of the protrusion 111, the adhesive adjuster 160 gradually decreases the inclination of the table 120 in the first direction, The horizontal inclination of the table 120 may be gradually increased in a direction opposite to the first direction during the process of adhering the table 120 from the tip portion of the protrusion 111. This horizontal slope change of the table 120 will be described in more detail with reference to Figs. 7 to 9 in the following.

The adhesion regulating unit 160 maintains the same pressure applied to the adhesive member by the roller 140 or the direction of the force applied to the protrusion 111 by the roller 140 and the direction of the force applied to the protrusion 111 The tangent line at the portion where the roller 140 is contacted can be maintained at the same angle.

The adhesion adjusting unit 160 includes first and second height adjusting members 161 and 162 which are connected to a lower portion of the table 120 to adjust the horizontal inclination of the table 120, A third height adjusting member 163 connected to a lower portion of the roller 140 to adjust a pressure applied to the adhesive member by the roller 140 by adjusting a height of the roller 140, And a fourth height adjusting member 164 which can control whether to hold and release the horizontal support of one end of the one end of the bonding member by the horizontal support 150 by adjusting the height of the support 150. The adhesion regulator 160 further includes auxiliary members 165 and 166 for preventing the table 120 from tilting beyond a limit angle.

1, the first and second height adjusting members 161 and 162 are provided on the base 132 of the transferring unit 130 and the third and fourth height adjusting members 163 and 164 are provided on the table 132. [ Is installed on the auxiliary base (135) provided on the side of the table (120) so as to change the position of the roller (140) and the horizontal support part (150) interlocking with the horizontal inclination of the table (120). However, the above arrangement / structure is only an example of the present invention, and the scope of the present invention is not limited to this arrangement / structure.

The structure and arrangement of the components of the curved display manufacturing apparatus 100 according to the present invention and the functions thereof have been briefly described above with reference to FIGS. 1 to 6. FIG. Hereinafter, the process of manufacturing the curved display panel by the curved display manufacturing apparatus 100 will be described with reference to FIGS. 3 to 6. FIG.

7 is a flowchart illustrating a method of manufacturing a curved display panel using the curved display manufacturing apparatus 100 shown in FIG. 7 shows a process of an OCA film which is a type of an adhesive member on a curved glass. FIGS. 8 and 9 are conceptual diagrams illustrating a manufacturing process of a curved display panel according to the manufacturing method shown in FIG.

8 (a) and 8 (b)), the protruding portion 111 is formed on the protruding portion 111 The curved glass is positioned and adsorbed and fixed, and the OCA film is placed on the table 120 (S100). At this time, the height of the roller 140 and the horizontal support part 150 is maintained to be the same as that of the table 120. And the releasing paper on the surface of the OCA film is removed so that the surface of the OCA film is ready to be adhered to the curved glass. 8 and 9, the curved glass and the adhesive member are not shown for the sake of simplicity.

8 (c)), the conveying unit 130 rotates the table 120, the roller 140, and the conveying unit 130, The horizontal support part 150 is horizontally moved to the adhesion start position under the fixing part 110 so that one end of the table 120 reaches the adhesion start position (refer to FIG. 8D) (step S110) .

The adhesion regulating unit 160 controls the fourth height regulating member 164 to lower the horizontal supporting unit 150 to a level lower than the table 120 and controls the third height regulating member 163 The first height adjusting member 161 and the second height adjusting member 162 are controlled to raise the roller 140 so that the roller 120 is higher than the table 120 The OCA film is adhered to the curved glass on the basis of the horizontal movement of the conveying unit 130 and the pressing of the adhesive member of the roller 140 (see FIG. 9 (a)) ) (S120). In step S120, the height of the table 120 is controlled to be gradually lowered, and the pressure of the roller 140 is kept constant.

When the OCA film is adhered to the tip portion of the protrusion 111 as the bonding process is performed, the adhesion adjusting unit 160 moves the one end of the table 120 downward and lifts the other end of the table 120 Next, the OCA film is adhered to the curved glass by the horizontal feed of the conveying unit 130 and the pressing of the roller (see FIG. 9B and FIG. 9C) (S130). In step S130, the height of the table 120 is controlled to be gradually increased.

As described above, the bonding process of the adhesive member may include a first step in which bonding is not substantially caused by horizontal movement of the transfer unit 130, a horizontal movement by the transfer unit 130, And a second bonding step in which the adhesive member is adhered to the curved glass substantially while the height of the table (120), the roller (130), and the horizontal support part (150)

When the OCA film is adhered to the curved glass, the transfer unit 130 and the adhesion adjusting unit 160 return the horizontal inclination of the table 120 to the horizontal position, raise the horizontal support unit 150 to the original position, The roller 140 is lowered to the original position and the table 120 is moved horizontally to the original position (see FIG. 9D) (S140).

When the surface of the OCA film is adhered to the curved glass according to the steps S100 to S140, the release sheet adhered to the back surface of the OCA film is removed, and the open cell of the display panel is further adhered to the back surface of the OCA film adhered to the curved glass Process can be performed. This process can be performed by placing the open cell on the table 120 instead of the OCA film and performing steps S100 to S140.

In the case of an open cell, the OCA film is generally thicker and heavier than the OCA film, and is more likely to be moved by the tilting of the table 120. The table 120 may further include a transverse member 121 for blocking the movement and guiding the position of the open cell. This transverse member 121 may not be used in the OCA film bonding process.

The horizontal member 121 functions to open cells of various sizes (which have the same or similar meaning to the curved glass of various sizes) according to the position of the coupling hole 123 provided in the table 120 Can be exercised. In addition, removal of the release paper on the back surface of the OCA film may be performed in a state in which the protruding portion 111 is directed downward, and the protruding portion 111 is formed in an upward direction. Therefore, open cell adhesion and OCA film adhesion may differ in steps S100 and S110.

In some cases, the touch sensing layer may be first adhered to the curved glass prior to the open cell adhesion, which may be the same or similar to the open cell adhesion method discussed above. In this case, an OCA film adhesion process may be further performed between the touch sensing layer and the open cell.

10 is a conceptual diagram for explaining the pressing process of the adhesive member of the roller 140 of the curved display manufacturing apparatus 100 shown in FIG. For the sake of simplicity, the adhesive member is not shown in Fig.

A position where adhesion with the adhesive member is completed by the roller 140 during a process of adhesion to the adhesive member by the roller 140, The angle? Between the force applied to the roller 140 and the tangent at the portion where the roller 140 contacts the protrusion 111 is kept the same.

The speed of adhesion by the rotation of the roller 140 is constant, and the force applied by the roller 140 is kept constant. Thus, the adhesion of the adhesive member to the curved glass can be made with a constant quality, and the phenomenon that air bubbles remain between the curved glass and the adhesive member can be prevented. On the other hand, the angle? Is preferably between 60 degrees and 90 degrees. If the angle [theta] is less than 60 degrees or more than 90 degrees, the force applied by the roller 140 can be weakened and the roller 140 can slide on the adhesive member.

As a result, the curved display manufacturing apparatus 100 according to the present invention does not perform an etching process for reducing the thickness of the tempered glass substrate of the flat panel display panel, so that the damage to the tempered glass substrate, the circuit substrate, It is possible to manufacture a curved display panel having high durability and a high yield, and it is also possible to provide an effect of reducing manufacturing cost and manufacturing time.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

100: a curved display panel manufacturing apparatus 110:
120: Table 130:
140: roller 150: horizontal support
160:

Claims (8)

A bonding preparation step of adsorbing and fixing the curved glass to the lower projection having the same curvature as that of the curved glass of the fixing part and mounting the adhesive member on a table lower in height than the fixing part;
A conveying unit that is horizontally movable by the conveying unit and provided on one side surface of the table on the table and the conveying unit and horizontally moves a roller, which applies pressure to the adhesive member in the direction of the projecting unit, 1 adhesion step; And
The roller is moved along the curved surface of the protruding portion while the roller and the roller are moved along the curved surface of the protruding portion by the conveying portion to apply the same pressure from the one end portion to the other end portion at the same speed, Wherein a horizontal slope and a height of the table and a pressure applied to the roller are adjusted by an adhesive regulating portion provided on the conveying portion and horizontally movable by the conveying portion, In addition,
Wherein the second bonding step comprises:
Raising the roller above the table; A step of raising one end of the table and lowering the other end of the table so as to apply a constant pressure to the adhesive member by the roller in the process of bonding the end of the adhesive member to the tip of the protrusion; And a step of lowering the one end portion of the table and raising the other end portion of the table so as to apply a constant pressure to the adhesive member with the roller in the process of adhering the tip portion of the protrusion to the other end portion of the adhesive member In addition,
In the second bonding step, the roller is changed in position in conjunction with the horizontal tilt adjustment of the table by the adhesion adjusting part,
Wherein the surface of the roller and the protrusion is pressed to a certain depth by a pressure applied to the roller and has elasticity that is restored to its original state when the pressure is released,
The fixing portion includes: the protrusion; A cover to which said projection is fixed; A fixing controller for controlling air suction through a path from the suction hole on the surface of the protrusion to the suction hole on the cover to control the suction / fixation of the curved glass to the fixing portion; A rotating shaft coupled to the cover; And a rotation regulating unit for rotating the rotation shaft such that the protrusion is directed downward or upward,
The cross section of the adsorption hole on the surface of the projecting portion has a diffusion structure in which the diameter increases in the outward direction of the diameter,
And a second curvature higher than the first curvature of the protruding portion is formed at the edge of the suction hole on the surface of the protruding portion but is pressed by the first curvature by the curved glass to be adsorbed, Wherein the adsorbing auxiliary protrusions are formed on the surface of the substrate.
delete The method according to claim 1,
Gradually decreasing the horizontal inclination of the table in the first direction in the process of adhering from the one end of the adhesive member to the tip of the protrusion;
Adjusting the table horizontally when it reaches the tip of the projection; And
And gradually increasing the horizontal inclination of the table in a second direction opposite to the first direction in a process of adhering from the tip of the protrusion of the adhesive member to the other end of the adhesive member. Wherein the curved display panel comprises a plurality of curved display panels.
4. The method of claim 3, wherein in the second bonding step,
Wherein an angle formed by a tangent at a portion where the roller contacts the protruding portion and a direction of a force applied to the roller is the same within a range of 60 degrees to 90 degrees.
5. The method of claim 4,
Adjusting the horizontal inclination of the table by controlling the first and second height adjusting members whose height is complementarily changed by connecting them at the bottom of the table; And
And controlling the height of the third height adjusting member connected to the lower portion of the roller so as to uniformly control the pressure applied to the roller.
The method according to claim 1,
Further comprising the step of supporting the one end of the adhesive member on the table at the same height as the table,
Wherein the second bonding step comprises:
Further comprising the step of releasing the support for the one end of the adhesive member.
delete 2. The method according to claim 1,
Wherein a plurality of suction hole lines formed in the transverse direction of the surface of the protruding portion are symmetrically formed on both sides with respect to the tip end portion of the protruding portion and a plurality of guide member mounting grooves formed in the transverse direction of the protruding portion surface overlap the tip portion of the protruding portion Are symmetrically formed on both sides,
Wherein the number of the suction holes to perform the suction fixing function and the guide member mounting groove to which the guide member is mounted are determined according to the size of the curved glass.

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