TWI740985B - Method of manufacturing display device and apparatus for manufacturing display device - Google Patents

Abstract

The present application provides a method of manufacturing a display device and an apparatus for manufacturing a display device. The method of manufacturing a display device includes bending a first film member of a processing object such that a part of one side of the first film member surrounds a part of an outer side of a bending area of a second film member of the processing object while the first film member is laminated on the second film member.

Description

Method for manufacturing display device and equipment for manufacturing display device

Cross-reference of related applications

This application claims the priority of Korean Patent Application Nos. 10-2016-0093160 and 10-2016-0095318 filed with the Korean Intellectual Property Office on July 22, 2016, the entire contents of which are incorporated herein by reference. .

The viewpoints of the embodiments of the present invention relate to a method of manufacturing a display device and a device for manufacturing the display device.

The importance of display devices has increased with the development of multimedia. Various types of display devices, such as liquid crystal displays (LCDs), organic light emitting diode (OLED) displays, etc., have been developed in response to the increase in multimedia consumption.

Recently, mobile electronic appliances (such as mobile electronic devices) have become very popular. In addition, small electronic appliances such as mobile phones and tablet computers have been widely used as mobile electronic appliances.

Such mobile electronic appliances usually include a display device for providing users with various information, such as image information or video information, so as to support various functions. Recently, components that drive display devices have been made smaller or more miniaturized, and the ratio of display devices in electronic appliances has gradually increased. Plus, and bendable display devices (for example: bent to a specific angle) that can be bent from a flat state have also been developed.

The embodiment of the present invention provides a method for manufacturing a display device to prevent or reduce damage generated inside the display device.

The embodiment of the present invention also reduces or minimizes the pressure applied to part of the display device by stably bending some of its components.

However, the present invention does not only provide the features described herein. By referring to the following detailed description, the above and other viewpoints and features of the present invention will become more apparent to those with ordinary knowledge in the field of the present invention.

According to an embodiment of the present invention, a method of manufacturing a display device includes bending a first film member of a processed object, so that the outer portion of the first film member surrounds the bending area of the second film member of the processed object laminated on the first film member The outer part.

According to another embodiment of the present invention, an apparatus for manufacturing a display device includes: a stage configured to accommodate a processed object, the processed object including a first film member laminated on a second film member, and a second film member Having a bending area; and a bending head configured to contact the first film member, and bending the first film member so that the outer portion of the first film member surrounds the outer portion of the bending area of the second film member.

AD1: the first adhesive layer

AD2: second adhesive layer

AD3: third adhesive layer

AD4: fourth adhesive layer

BA1: first bending area

BA2: second bending area

BG: bending guide

BH: curved head

BH_f, BH2_f: front bending head

BH_b, BH2_b: back bending head

BL1_1: The first bending line of the first film member

BL1_2: The second bending line of the first film member

BL2_1: The first bending line of the second film member

BL2_2: The second bending line of the second film member

BO: body

BP1: the first contact

BP2: The second contact part

CA, CA1: Calibration measurement unit

CP: Connection part

C1, C2: contact point

DA: display area

EL: extension cord

FI1: First film member

FI1_1: the first surface of the first film member

FI1_2: The second surface of the first film member

FI1_F1: The first flat surface of the first film member

FI1_F2: The second flat surface of the first film member

FI2: Second film member

FI2_1: The first surface of the second film member

FI2_2: The second surface of the second film member

FI2_F1: The first flat surface of the second film member

FI2_F2: The second flat surface of the second film member

FG: first support

FPC1: The first flexible printed circuit board

FPC2: The second flexible printed circuit board

g: gap

H1: First contact

H2: Second contact hand

H3: Third contact hand

H1_b: first-hand contact

H2_b: second-hand contact part

H3_b: third hand contact part

HL: horizontal line

HO: Hole

LA: Laser measuring unit

NDA: Non-display area

PA1: The first panel

PA2: second panel

PA2_F1: The first flat surface of the second panel

PA2_F2: The second flat surface of the second panel

PR: pressing member

RO: pole

SE: sensor unit

SG: second support

ST: Stage

SU: Stage support

SY: cylinder

T: Processing object

TR, TR1: operating unit

WI: Windows

With reference to the exemplary embodiments of the accompanying drawings, the above-mentioned other viewpoints and features will become apparent through the detailed description, in which: FIG. 1 is a cross-sectional view of a device for manufacturing a display device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram for explaining the viewpoint of the apparatus for manufacturing the display device according to the embodiment of FIG. 1. FIG.

FIGS. 3 to 6a show diagrams for explaining the operation of the apparatus for manufacturing the display device according to the embodiment of FIG. 1.

Fig. 6b is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIG. 8 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

Figure 9 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIGS. 10 and 11 show diagrams for explaining the operation of an apparatus for manufacturing a display device according to the embodiment of FIG. 9.

Figures 12 to 14 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of the present invention.

Figures 15 to 16 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of the present invention.

Figures 17 to 19 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIG. 20 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIG. 21 is a conceptual diagram for explaining the viewpoint of the apparatus for manufacturing the display device according to the embodiment of FIG. 20. FIG.

FIG. 22 is a partial plan view of a display device according to an embodiment of the present invention.

FIG. 23 is a partial plan view of a display device according to another embodiment of the present invention.

FIG. 24 is a partial plan view of a display device according to another embodiment of the present invention.

Figures 25 to 26 are cross-sectional views for explaining the operation of an apparatus for manufacturing a display device according to another embodiment of the present invention.

FIG. 27 is a block diagram showing a method of manufacturing a display device according to an embodiment of the present invention.

FIG. 28 is a cross-sectional view for explaining a method of manufacturing a display device according to another embodiment of the present invention.

FIG. 29 is a cross-sectional view explaining a method of manufacturing a display device according to another embodiment of the present invention; and FIGS. 30 to 32 are cross-sectional views explaining a method of manufacturing a display device according to another embodiment of the present invention.

The viewpoints and features of the present invention and method will be described in detail with reference to the accompanying drawings, and the viewpoints and features provided by the exemplary embodiments of the present invention will become apparent. However, the present invention is not limited to the exemplary embodiments disclosed herein, and can be implemented in various forms. The exemplary embodiments described below include detailed structures and elements thereof to help those skilled in the art fully understand the details provided by the present invention. The present invention has its equivalents within the scope of the patent application.

It should be understood that when an element or layer is referred to as being "on", "connected to" or "coupled to" another element or layer In the case of an element or another layer, it may be directly on it, directly connected or coupled to another element or another layer, or one or more intervening elements or intervening layers may also exist. When an element or layer is referred to as "directly on", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element Or the intermediary layer exists. For example, when a first element is described as being "coupled" or "connected" to a second element, the first element can be directly coupled or connected to the second element or the first element can be connected via one or A plurality of intermediary elements are indirectly coupled or connected to the second element. The same reference sign indicates the same element. As used herein, the term "and/or" includes any or all combinations of one or more related list terms. In addition, in addition, the use of "may" when describing embodiments of the present invention refers to "one or more embodiments of the present invention." Expressions, such as "at least one of", modify the entire component list before the component list, and do not modify each element of the list. Likewise, the term "exemplary" is intended to mean illustration or illustration. As used herein, the terms "use", "using", and "used" can be considered to be the same as the terms "utilize", "utilizing" and "use", respectively. Utilized)” is synonymous.

It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and/or parts, these elements, components, regions, layers and/or parts should not be affected by these terms. limits. These terms are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Therefore, the first element, component, region, layer or portion discussed below may be referred to as a second element, component, region, layer or portion without departing from the teaching of the exemplary embodiment. In the drawings, the sizes of various elements, layers, etc. may be exaggerated for clarity of description.

Spatial relative terms, such as: "beneath", "below", "lower", "above", "upper", etc., It can be conveniently used herein to describe the relationship of one element or feature to another element or feature as shown in the figure. It should be understood that the spatially relative terms are intended to encompass different orientations of devices in use or operation in addition to the orientations shown in the figures. For example, if the device in the figure is turned over, the element is described as "beneath", "below" on other elements or features, and then oriented as "above )" or "over" other elements or features. Therefore, the term "below" can include upper and lower positions. The device can be oriented in other ways (rotated by 90 degrees or rotated in other directions), and the spatial relative descriptors used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing specific exemplary embodiments of the present invention, and is not limited to the described exemplary embodiments of the present invention. As used herein, as used herein, unless the context clearly dictates otherwise, the singular forms "one (a)" and "one (an)" are also intended to include the plural forms. It should be further understood that when used in this specification, the terms "includes", "including", "comprises" and/or "comprising" designate the features, wholes, and steps. , Operations, elements, and/or components, but do not exclude the presence or application of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.

Figure 1 is a cross-sectional view of an apparatus for manufacturing a display device according to an embodiment of the present invention. FIG. 2 is a conceptual diagram for explaining the viewpoint of the apparatus used for manufacturing the display device according to the embodiment shown in FIG. 1. FIG. FIGS. 3 to 6 show diagrams for explaining the operation of the apparatus for manufacturing the display device according to the embodiment of the present invention in FIG. 1.

Referring to FIGS. 1 to 6, an apparatus for manufacturing a display device according to an embodiment of the present invention includes: a stage ST on which a processed object T is set, and a bending head BH.

First, the processed object according to the embodiment of the present invention will be described. The processed object may include a window WI, a first adhesive layer AD1, a first film member FI1, a second adhesive layer AD2, and a second film member FI2. The second film member FI2 has a bending area BA2 at one end thereof (for example, the second film member FI2 is bent at one end).

The window WI may be made of a transparent material that transmits light. For example, the window WI can be made of glass and/or transparent plastic.

Figure 1 shows a single-layer embodiment of the window WI, but the structure of the window WI is not limited to this. For example, in another embodiment, the window WI has a laminated structure in a plurality of laminated functional layers. The plurality of functional layers include adhesive layers.

In an embodiment, the window WI is flexible. For example, the window WI may be made of a bendable, foldable, or rotatable material or have a structure that can be bent, folded, or rotated.

The first adhesive layer AD1 can be disposed on the window WI. The first adhesive layer AD1 may cover at least a part of the window WI or may cover the entire window WI. Although as shown in FIG. 1, the first adhesive layer AD1 only covers a part of the window WI, this is just an example, and the application field of the first adhesive layer AD1 is not limited to this.

The first adhesive layer AD1 can be located on the window WI to bond the window WI to the first film member FI1, which will be described later.

In an embodiment, the first adhesive layer AD1 may include a photocurable resin or a thermosetting resin with high transmittance and adhesive performance. For example, the first adhesive layer AD1 can be formed by applying resin, such as: Acrylic resin is then irradiated with ultraviolet light (UV) to cure the resin. In another embodiment, the first adhesive layer AD1 may be formed of optical adhesive (OCA).

The first film member FI1 may be disposed on the first adhesive layer AD1.

The first film member FI1 may have a thin plate shape. In an embodiment, the planar shape of the first film member FI1 may be a rectangular shape. However, the present invention is not limited to this, and the planar shape of the first film member FI1 may include a curve or a partial curve, or may include a specific pattern.

In an embodiment, the first film member FI1 may be flexible. For example, the first film member FI1 may be made of a bendable, foldable or rotatable material, or may have a bendable, foldable or rotatable structure.

In an embodiment, a plurality of electronic components may be formed on the first film member FI1. In this specification, the term "electronic element" can be understood as including or indicating wires or conductive electrodes. The electronic element may be formed on the first film member FI1 through the pattern structure, or may be formed on the entire surface of the first film member FI1. The plurality of electronic components can be made of metal. However, the present invention is not limited to this, and the plurality of electronic components may include conductive polymer materials.

In an embodiment, the first film member FI1 used in the display device may be a panel or a flexible printed circuit board. For example, the first film member FI1 may include a touch screen panel (TSP). However, this is only an example, and the first film member FI1 is not limited to this.

The first film member FI1 can be obtained by integrally forming a film. However, the present invention is not limited to this, and the first film member FI1 may be formed by connecting a plurality of films to each other. For example, the first film member FI1 may include a panel and a flexible printed circuit board connected to the panel.

Fig. 1 shows an embodiment in which the first film member FI1 is a single layer, but the present invention is not limited to this. In another embodiment, the first film member FI1 may be laminated in a plurality of laminated functional layers. complex Several functional layers are not limited, for example, a protective layer, an adhesive layer, a buffer absorption layer and the like can be included in the first film member FI1.

As shown in Figure 1, one end of the first film member FI1 can be arranged on the outside of the window WI (for example, can extend beyond), and/or one end of the adhesive layer AD1, wherein the first film member FI1 is in a flat state , That is, the state before bending. For example, a part or part of the first film member FI1 may not overlap with the first adhesive layer AD1. The portion of the first film member FI1 that does not overlap with the first adhesive layer AD1 (for example, extends beyond) can be bent. The details will be further described later.

The second adhesive layer AD2 may be disposed on the first film member FI1. For example, the first film member FI1 can be interposed between the second adhesive layer AD2 and the first adhesive layer AD1.

The second adhesive layer AD2 may be disposed on the first film member FI1 to attach the first film member FI1 to the second film member FI2, which will be further described later.

In an embodiment, the second adhesive layer AD2 may include a photocurable resin or a thermosetting resin with high transmittance and adhesive performance. For example, the second adhesive layer AD2 can be formed by applying resin (for example, acrylic resin), and then irradiating the resin with ultraviolet (UV) light to cure the resin. In another embodiment, the second adhesive layer AD2 may be formed of optical adhesive (OCA).

In an embodiment, the second adhesive layer AD2 can be made of the same material as the first adhesive layer AD1. However, the present invention is not limited to this, and in another embodiment, the second adhesive layer AD2 and the first adhesive layer AD1 may be made of different materials.

In an embodiment, the application range of the second adhesive layer AD2 and the application range of the first adhesive layer AD1 are substantially the same as each other. However, the present invention is not limited to this. In another embodiment, the application range of the second adhesive layer AD2 and the application range of the first adhesive layer AD1 may be different from each other. For example: first One end of the adhesive layer AD1 and one end of the second adhesive layer AD2 are not aligned with each other. The details will be further described later with reference to the drawings.

As shown in Figure 1, in the flat state of the first film member FI1, that is, before the bent state, one end of the first film member FI1 may be disposed on the outer end of the second adhesive layer AD2. For example, a part of the first film member FI1 may not overlap with the second adhesive layer AD2. As described further below, the portion of the flexible first film member FI1 that does not overlap with the second adhesive layer AD2.

The second film member FI2 may be disposed on the second adhesive layer AD2.

In an embodiment, the second film member FI2 may be flexible. For example, the second film member FI2 may be made of a bendable, foldable or rotatable material, or may have a bendable, foldable or rotatable structure. However, the present invention is not limited to this, and in another embodiment, the second film member FI2 may be rigid. (For example: can be made of rigid material)

In an embodiment, a plurality of electronic components may be formed on the second film member FI2 in substantially the same way as the first film member FI1. The electronic element may be formed on the second film member FI2 through the pattern structure, or may be formed on the entire surface of the second film member FI2. The plurality of electronic components can be made of metal. However, the present invention is not limited to this, and the plurality of electronic components may include conductive polymer materials.

In an embodiment, the second film member FI2 used in the display device may be a panel or a flexible printed circuit board. For example: the second film member FI2 may be a display panel. However, this is only an example, and the second film member FI2 is not limited to this.

The second film member FI2 can be obtained by integrally forming a film. However, the present invention is not limited to this, and the second film member FI2 may be formed by connecting a plurality of films to each other. For example, the second film member FI2 may include a panel and a flexible printed circuit board connected to the panel.

Fig. 1 shows an embodiment in which the second film member FI2 is a single layer, but the present invention is not limited to this. In another embodiment, the second film member FI2 may be laminated in a plurality of laminated functional layers. The plurality of functional layers are not limited, and for example, a protective layer, an adhesive layer, a buffer absorption layer, and the like can be included in the second film member FI2.

The second film member FI2 has a bending area BA2.

For ease of description, some terms will be defined with reference to Figure 2.

FIG. 2 is a conceptual diagram of an apparatus for manufacturing a display device according to the embodiment of FIG. 1, to clearly explain the first film member FI1 and the second film member FI2.

First, define the bending line. In this specification, the bending line may refer to the line from the beginning to the end of the bending. In other words, the curved line can refer to the boundary between a part with zero curvature (for example, a flat part) and a part with non-zero curvature (for example, a curved part).

In this specification, the curved area may refer to the area of continuously connected parts with non-zero curvature. In other words, the bending area can be defined between two bending lines.

In an embodiment, the first film member FI1 may have a first surface FI1_1 and a second surface FI1_2 opposite or opposite to each other. In an embodiment, the second film member FI2 has a first surface FI2_1 and a second surface FI2_2 opposite or opposite to each other. The positions of the first surface and the second surface are listed in Figure 2. For example, in the state before bending, the surface near the window WI may be the first surface, and the surface opposite to the window WI may be the second surface.

Referring to FIG. 2, the second film member FI2 may have a second bending area BA2. The second bending area BA2 may be an area defined between the first bending line BL2_1 of the second film member FI2 and the second bending line BL2_2 of the second film member FI2.

In an embodiment, the first bending line BL2_1 and the second bending line BL2_2 of the second film member FI2 may be aligned along the y axis (for example, extending along the y axis). However, the present invention is not limited to this, and in another embodiment, the first bending line BL2_1 and the second bending line BL2_2 may not be aligned with each other.

In an embodiment, the second film member FI2 may have a first flat surface FI2_F1 and a second flat surface FI2_F2. When the first film member FI2 is bent, the first flat surface FI2_F1 and the second flat surface FI2_F2 may face each other. In addition, the first flat surface FI2_F1 and the second flat surface FI2_F2 may be connected to each other through the second bending area BA2. For example, the second bending area BA2 may be arranged between the first flat surface FI2_F1 and the second flat surface FI2_F2.

The first film member FI1 may be bent to include a first bending area BA1, which will be further described later. The first bending area BA1 can be defined between the first bending line BL1_1 of the first film member FI1 and the second bending line BL1_2 of the first film member FI1.

In an embodiment, the first bending area BA1 may be curved along the outer side (or outer surface) of the second bending area BA2. For example, the first bending area BA1 may have a shape surrounding at least a part of the periphery of the second bending area BA2.

When the first film member FI1 is bent, the first film member FI1 may also have a first flat surface FI1_F1 and a second flat surface FI1_F2. The first flat surface FI1_F1 and the second flat surface FI1_F2 may face each other. In addition, the first flat surface FI1_F1 and the second flat surface FI1_F2 may be connected to each other through the first bending area BA1. For example, the first bending area BA1 may be disposed between the first flat surface FI1_F1 and the second flat surface FI1_F2.

In an embodiment, the first bending line BL1_1 and the second bending line BL1_2 of the first film member FI1 may be aligned along the vertical direction. However, the present invention is not limited to this, and in another embodiment, the first bending line BL1_1 and the second bending line BL1_2 may not be aligned with each other.

The elements and configurations defined in the description of FIG. 2 can be understood to have the same meaning throughout the specification.

With reference to Figure 1, the description of the second film member FI2 will continue. In an embodiment, the second bending area BA2 of the second film member FI2 may be formed by bending the flexible second film member FI2. However, the present invention is not limited to this, and in another embodiment, the second bending area BA2 may be formed by processing a rigid second film member FI2.

The third adhesive layer AD3 may be disposed on the second film member FI2.

The third adhesive layer AD3 may be disposed on the second film member FI2 to attach the first flat surface FI2_F1 and the second flat surface FI2_F2 of the second film member FI2.

In an embodiment, the third adhesive layer AD3 may include a photocurable resin and a thermosetting resin with high transmittance and adhesion. For example, the third adhesive layer AD3 can be formed by applying resin, such as acrylic resin, and then irradiating the resin with ultraviolet light (UV) to cure the resin. In another embodiment, the third adhesive layer AD3 may be formed of optical adhesive (OCA).

In another embodiment, the third adhesive layer AD3 may include a double-sided tape.

Figure 1 shows an embodiment in which the third adhesive layer AD3 is a single layer, but this is an example, and the present invention is not limited to this. The third adhesive layer AD3 can be laminated in a plurality of stacked functional layers. For example, the third adhesive layer AD3 may include a filler to fill up the space between the first flat surface FI2_F1 and the second flat surface FI2_F2 of the second film member FI2.

The third adhesive layer AD3 can fill at least a part of the space formed by the first flat surface FI2_F1, the second flat surface FI2_F2 and the second curved area BA2 of the second film member FI2.

Figure 1 shows that the third adhesive layer AD3 fills through the partial space formed by the first flat surface FI2_F1, the second flat surface FI2_F2 and the second curved area BA2 of the second film member FI2 Examples, but the present invention is not limited to them. In another embodiment, the third adhesive layer AD3 can fill the entire space formed by the first flat surface FI2_F1, the second flat surface FI2_F2 and the second curved area BA2 of the second film member FI2.

The fourth adhesive layer AD4 may be disposed on the second flat surface FI2_F2 of the second film member FI2.

The fourth adhesive layer AD4 may be disposed on the second flat surface FI2_F2 of the second film member FI2 to attach the second flat surface FI1_F2 of the first film member FI1 to the second film member FI2.

In an embodiment, the fourth adhesive layer AD4 may include a photocurable resin or a thermosetting resin with high transmittance and adhesive properties. For example, the fourth adhesive layer AD4 can be formed by applying resin (for example, acrylic resin), and then irradiating the resin with ultraviolet (UV) light to cure the resin. In another embodiment, the fourth adhesive layer AD4 may be formed of optical adhesive (OCA).

In another embodiment, the fourth adhesive layer AD4 may include a double-sided tape.

The fourth adhesive layer AD4 at least partially overlaps the third adhesive layer AD3. However, the present invention is not limited to this, and in another embodiment, the fourth adhesive layer AD4 and the third adhesive layer AD3 may not overlap each other.

Figure 1 shows an embodiment in which the fourth adhesive layer AD4 is disposed on the second flat surface sheet FI2_F2 of the second film member FI2, but the present invention is not limited to this. In another embodiment, the fourth adhesive layer AD4 can also be disposed on the second flat surface sheet FI1_F2 of the first film member FI1.

Hereinafter, other components of the apparatus for manufacturing the display device according to the embodiment of the present invention will be described. The apparatus for manufacturing a display device according to an embodiment of the present invention may include a stage ST, a running unit TR, a stage support SU, a sensor unit SE (for example, a sensor), a cylinder SY, and a rod RO.

The processing object T can be mounted on the stage ST. The stage ST can provide a space for setting the processed object T, and can fix the processed object T.

The operation unit TR for moving the stage ST may be provided under the stage ST, and the operation unit TR may have a mechanical structure that allows the stage ST to be movable. In the embodiment, the stage ST can slide in the horizontal direction. In an embodiment, the operation unit TR may include a linear guide for moving the stage ST. In addition, in order to reduce the sliding friction of the stage ST, the operation unit TR may include an air floating device such as an air cushion or an air bearing. Therefore, the stage ST can be moved with a small force.

Although an example of the horizontal movement of the stage ST is shown, the movement of the stage ST is not limited to this. For example, according to an embodiment described later, the stage ST can move along the x-axis, the y-axis, and the z-axis, or can rotate in any one of the x-axis, the y-axis, and the z-axis.

Therefore, the operation unit TR can be configured so that the stage ST can move as described above.

The sensor unit SE may be provided under the operation unit TR. During processing or during movement, the stage support SU can support the stage ST. For example, the carrier support SU can provide space for the entire process.

In an embodiment, the sensor unit SE may be provided on one side of the stage ST. The sensor unit SE can check the movement of the stage ST or measure the force applied to the stage ST. In an embodiment, the sensor unit SE may include a load cell. For example, when the carrier ST moves, a constant deformation is applied to the load cell, and based on this deformation, the force applied to the carrier ST can be measured.

One side of the sensor unit SE may provide (for example: contactable) the stage ST, and the other side of the sensor unit SE may provide (for example: contactable) the cylinder SY through the rod RO connected to the cylinder SY. When the applied force exceeds a certain value, the rod RO moves into the cylinder SY.

In the embodiment, when a force is applied to the stage ST in the X direction in FIG. 1, the sensor unit SE can measure the force and transmit the applied force to the rod RO. Rod RO does not move within a certain force range (For example, the rod RO can resist movement up to a certain force), so the movement of the stage ST can be suppressed. As shown in Figure 1, the length of the rod RO can be d0 without moving.

However, when a force exceeding a certain range is applied, the rod RO moves or is inserted into the cylinder SY. Therefore, the stage ST gradually moves. For example, the rod RO and the cylinder SY cause the carrier ST to move. Even if the carrier ST moves, the force applied to the second film member FI2 can be reduced or minimized. The details will be further described with reference to Figs. 3 and 4 later.

The apparatus for manufacturing a display device according to an embodiment of the present invention includes a bending head BH.

The bending head BH may contact at least one side of the first film member FI1 to bend the first film member FI1. For example, the bending head BH may be adsorbed (for example, releasably connected to) the first surface FI1_1 of the first film member FI1 to be fixed to the first film member FI1. The method of connecting the bending head BH to the first film member FI1 is not limited. For example, the bending head can be fixed to the first film member FI1 through a vacuum adsorption method, a bonding method, and/or a physical fixing method.

The bending head BH has a bar shape and extends in the y-axis direction. However, the present invention is not limited to this, and the bending head BH may have a shape including a curved surface or a part of a curved surface.

The apparatus for manufacturing a display device according to an embodiment of the present invention includes a calibration measurement unit CA. In the embodiment, the calibration measurement unit CA includes a camera.

In an embodiment, the calibration measurement unit CA can measure and align the first film member FI1 and the second film member FI2. In an embodiment, alignment marks may be formed on the first film member FI1 and the second film member FI2, and the calibration measurement unit CA may photograph the alignment marks to confirm whether the first film member FI1 and the second film member FI2 are aligned.

In another embodiment, the calibration measurement unit CA can check the alignment of the first film member FI1 and the second film member FI2 by observing the outer shape of the first film member FI1 and the second film member FI2, and confirm the input value and the outer shape Arrangement.

In an embodiment, the calibration measurement unit CA may be disposed on the third adhesive layer AD3 and the fourth adhesive layer AD4. For example, the calibration measurement unit CA confirms whether the first film member FI1 is in the correct position before the second surface F1_2 of the first film member FI1 is adsorbed to the second film member.

The apparatus for manufacturing a display device according to an embodiment of the present invention includes a laser measurement unit LA.

The laser measuring unit LA can measure the gap g between the first bending area BA1 of the first film member FI1 and the second bending area BA2 of the second film member FI2.

In an embodiment, the laser measurement unit LA may be disposed in the first bending area BA1 facing the first film member FI1.

The laser measuring unit LA can irradiate the first bending area BA1 with a laser beam to measure the gap g between the first bending area BA1 and the second bending area BA2. The laser beam emitted from the laser measuring unit LA passes through the first bending area BA1 or passes through a groove (or hole) formed on the first film member FI1 (a groove or opening formed in the first film member FI1 will It is described in further detail in other embodiments.) To measure the gap g between the first bending area BA1 and the second bending area BA2.

Hereinafter, the operation of the apparatus for manufacturing a display device according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6.

The operation of the apparatus for manufacturing the display device according to the embodiment of the present invention shown in FIG. 1 may include the following behaviors.

First, the processed object T is placed on the stage ST. Then, the first film member FI1 may be bent. Bending the first film member FI1 may include making the bending head BH touch the first surface FI1_1 of the first film member FI1, and fixing (for example, fixing or connecting to) the first film member FI1 at the bending head BH (refer to the arrow in Figure 3) In the state of direction), the first film member FI1 is bent so that at least a part of the outer side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2.

In an embodiment, the bending head BH can move along an arc-shaped trajectory. In another embodiment, the bending head BH can move along trajectories with different curvatures (for example, the bending head BH can move along an irregular arc-shaped trajectory). In another embodiment, the bending head can move under a combination of one or more straight lines and one or more curved lines.

During the bending of the first film member FI1, with the bending head BH fixed to the first film member FI1, at least a part of one side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2. The one film member FI1 and the second film member FI2 may be spaced apart from each other (for example, separated by an interval). For example, the first film member FI1 and the second film member FI2 may not contact each other when the first film member FI1 is bent.

When the first film member FI1 and the second film member FI2 are not in contact with each other, because the force applied to the stage ST is "0" or is insufficient to move the stage ST, the stage ST can remain stationary.

After bending, the bending head BH can be located above the second flat surface FI2_F2 of the second film member FI2, and at the same time fix the first film member FI1.

Then, the alignment can be measured through the calibration measurement unit CA. After measuring the alignment through the calibration measuring unit CA, the first film member FI1 may be pressed and attached to the second film member FI2. During re-pressing and attaching, the bending head BH presses the first film member FI1 toward the second film member FI2 to attach the first film member FI1 and the second film member FI2 together. In the illustrated embodiment, the bending head BH presses The first film member FI1 is pressed, but the present invention is not limited to this. In another embodiment, an additional pressing member may press the first film member FI1 to attach the first film member FI1 and the second film member FI2 together.

Fig. 4 shows a state where the first film member FI1 and the second film member FI2 are in contact during the bending of the first film member FI1. During the operation of the apparatus for manufacturing a display device according to the embodiment of the present invention shown in FIG. 1, when the bending head BH is fixed on the first film member FI1, at least a part of the first film member FI1 is surrounded by one side At least a part of the bending area BA2 of the second film member FI2.

In this case, the operation of the apparatus for manufacturing the display device includes measuring the force applied to the stage ST and/or pushing the rod RO toward the cylinder SY to move the stage ST.

)或彎曲之後(參考第4圖的

)，第一薄膜構件FI1可至少部份地接觸到第二薄膜構件FI2。在第4圖中，接觸點C1與C2在第一薄膜構件FI1與第二薄膜構件FI2之間用點來標示。然而，在其它例子中，第一薄膜構件FI1與第二薄膜構件FI2可在某個區域彼此接觸。 During bending (refer to Figure 4

) Or after bending (refer to Figure 4

), the first film member FI1 can at least partially contact the second film member FI2. In Figure 4, the contact points C1 and C2 are marked with dots between the first film member FI1 and the second film member FI2. However, in other examples, the first film member FI1 and the second film member FI2 may be in contact with each other in a certain area.

When the first film member FI1 is in contact with the second film member FI2, the first film member FI1 can push the second film member FI2 in the x-axis direction. Therefore, the stage ST receives a force in the x-axis direction.

Referring to the graph in Fig. 5, from the time point when the first film member FI1 contacts the second film member FI2 (for example, the distance between the first film member FI1 and the second film member FI2 is "0"), The force applied to the x-axis direction of stage ST gradually increases.

In this case, the force can be transmitted to the sensor unit SE provided on the side of the stage ST. The sensor unit SE can measure the force transmitted to the stage. Since the bending area BA2 of the second film member FI2 has a relatively weak mechanical structure, it is susceptible to physical impact, and if it receives too much force, it may be damaged or broken. For example: when the first film member FI1 is in contact with the second film member FI2, When a force is applied by the second film member FI2, the second bending area BA2 of the second film member FI2 may be damaged. The sensor unit SE can indirectly measure the force supplied from the first film member FI1 to the second film member FI2 by measuring the force provided on the stage ST. Based on the measured force, when the sensor unit SE detects a force exceeding a certain force, the second film member FI2 can be prevented from being damaged by stopping the processing and/or rearranging some components.

Then, referring to Figure 6a, the force transmitted to the stage ST in the x-axis direction can be transferred to the rod RO. As described above, the rod RO does not move within a certain force range, so the movement of the stage ST along the x-axis direction can be suppressed. However, if a force exceeding a certain force range is applied to the rod RO, the rod RO is gradually pushed or inserted into the cylinder SY, thereby preventing the stage ST from suddenly moving.

For example: as shown in Fig. 6a, the length of the rod RO is d1, for example, d0 shown in Fig. 1 is shorter.

When the force provided by the first film member FI1 exceeds the tolerance of the second film member FI2 (which can be set before processing), the cylinder SY and the rod RO can relax or weaken the first film member FI1 by slowly moving the stage ST The force of pressure. Therefore, it is possible to prevent damage due to a force exceeding its tolerance or reduce the chance of damage to the second film member FI2.

The operation mode of the apparatus for manufacturing the display device according to the embodiment of the present invention shown in FIG. 1 may include measuring the gap g between the first film member FI1 and the second film member FI2 through the laser measuring unit LA.

The measurement of the gap g between the first thin film member FI1 and the second thin film member FI2 using the laser measurement unit LA may be performed during bending of the first thin film member FI1, or may be performed before or after the calibration measurement unit CA measures the alignment.

The measurement of the gap g between the first thin film member FI1 and the second thin film member FI2 using the laser measuring unit LA can be performed continuously or intermittently during the processing.

In addition, in another embodiment, the measurement of the gap g between the first thin film member FI1 and the second thin film member FI2 using the laser measuring unit LA can be performed instantly.

When measuring the gap g between the first thin film member FI1 and the second thin film member FI2 using the laser measuring unit LA, if the first thin film member FI1 and the second thin film member FI2 are in the process of being processed, it is caused by contact with each other in the method. Damaged, the processing is stopped or processing is performed after resetting some components, thereby reducing the defect rate of the product.

Next, an apparatus for manufacturing a display device according to another embodiment of the present invention will be described. In the following embodiments, components that are the same or substantially the same as those that have already been described are lifted by the same labels, and the lengthy description thereof will be omitted or simplified.

FIG. 6b is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

Fig. 6b shows an apparatus for manufacturing a display device according to another embodiment of the present invention that is different from the embodiment of Fig. 1, because the second sensor unit SE1 is provided on one side of the bending head BH. Hereinafter, for convenience of description, the sensor unit SE in FIG. 1 will be referred to as the first sensor unit SE.

In an embodiment, the second sensor unit SE1 may be provided on the bending head BH. The second sensor unit SE1 can measure the force applied to the stage ST. In an embodiment, the second sensor unit SE1 may include a load cell.

For example: as shown in Figure 4, when the first film member FI1 and the second film member FI2 are in contact with each other, the bending head BH pulls the first film member connected to the bending head BH in the x-axis direction When FI1 moves, the first film member FI1 pushes the second film member FI2 in the x-axis direction. Therefore, the stage ST receives the force in the x-axis direction.

For example: when the first film member FI1 and the second film member FI2 are in contact with each other, the second sensor unit SE1 receives a force in the x-axis direction, and the magnitude of the force is approximately the same as that applied to the stage ST through the bending head BH The force on it is the same in magnitude. Therefore, the second sensor unit SE1 can measure the force applied to the stage ST through the bending head BH based on the magnitude of the force.

When the second sensor unit SE1 is provided on one side of the bending head BH, the cylinder SY and the rod RO connected to the cylinder SY may be provided on one side of the stage ST. For example, the embodiment shown in Fig. 6b is different from the embodiment shown in Fig. 1 in that the rod RO can be directly connected to the carrier ST.

Fig. 6b shows an embodiment in which the first sensor unit SE provided on the side of the stage ST in Fig. 1 is omitted, but the present invention is not limited to this. In another embodiment, both may include the first sensor unit SE and the second sensor unit SE1. For example, according to another embodiment of the present invention, a device for manufacturing a display device may include a first sensor unit SE and a second sensor unit SE1.

FIG. 7 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention.

Fig. 7 shows that the apparatus for manufacturing a display device according to an embodiment of the present invention is different from the embodiment shown in Fig. 1, and its operation unit TR1 includes a rotating device.

Figure 7 shows an apparatus for manufacturing a display device according to an embodiment of the present invention, and the transport unit TR1 may include a rotating device. In this embodiment, the stage ST may partially rotate with the y-axis as the rotation axis.

According to this embodiment, one end of the stage ST moves downward with respect to the virtual horizontal line HL, and the other end thereof moves upward with respect to the virtual horizontal line HL. For example, the operation of the apparatus for manufacturing the display device according to the embodiment may include rotating the stage ST to move one end of the stage ST downward.

In the state where the bending head BH is fixed to the first film member FI1, when one end of the stage ST moves downward relative to the virtual horizontal line HL, the first film member FI1 bends, so that at least a part of the first film member FI1 is The side surrounds at least part of the bending area BA2 of the second film member FI2, the first film member FI1 can be pulled down under the action of gravity, so as to maintain the gap g between the first film member FI1 and the second film member FI2. Therefore, the contact between the first film member FI1 and the second film member FI2 can be prevented or minimized.

FIG. 8 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention. Fig. 8 shows an apparatus for manufacturing a display device according to another embodiment of the present invention that is different from the embodiment of Fig. 1, and the bending head BH includes a first finger F1 and a second finger F2.

In an embodiment, the bending head BH may have a first finger F1 and a second finger F2 spaced apart from each other (for example, separated by an interval).

The first finger F1 is in contact with the first surface FI1_1 of the first film member FI1 and the second finger F2 is in contact with the second surface FI1_2 of the first film member FI1 to fix the first film member FI1. Specifically, when the first finger F1 and the second finger F2 contact the opposite surface of the first film member FI1 to fix the first film member FI1, compared to when the bending head BH only contacts the first film member FI1 When one side of FI1 is in contact, the first film member FI1 can be more stably fixed.

However, in the embodiment, it is difficult to align or press the first film member FI1 due to the space occupied by the second finger F2. Therefore, the apparatus for manufacturing a display device according to this embodiment may further include an additional pressing member PR for fixing and pressing the first film member FI1.

In an embodiment, the operation of the apparatus for manufacturing a display device according to this embodiment may include allowing the first finger F1 and the second finger F2 of the bending head BH to bring the pressing member PR into contact with the first film member FI1 , Detach the bending head BH, and after bending the first film member FI1, press the The first film member F1 of the member PR to attach the first film member FI1 and the second film member FI2 together so that at least part of one side of the first film member FI1 at least partially surrounds the bending of the second film member FI2 Area BA2.

For example, the installation of the pressing member PR can be performed by vacuum suction or adhesive bonding.

FIG. 9 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention. FIG. 9 shows that the apparatus for manufacturing a display device according to this embodiment of the present invention may further include a bending guide BG for assisting the first bending member FI1 to be bent through the bending head BH.

When the bending guide BG is in the middle of the bending of the first film member FI1, the bending guide BG can be used to support the first film member FI1 and maintain its shape, and/or maintain the first film member FI1 and the second film member FI2. The gap g is such that when the bending head BH is fixed to the first film member FI1, at least one side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2.

In order to further explain the apparatus for manufacturing the display device according to the embodiment of FIG. 9, reference will be made to FIGS. 10 and 11. FIGS. 10 and 11 are used to explain the operation of the apparatus for manufacturing the display device according to the embodiment in FIG. 9.

Referring to FIG. 10, in the operation of the apparatus for manufacturing a display device according to the embodiment of FIG. 9, in the state where the bending head BH is fixed to the first film member FI1 including the bending first film member FI1, the first film member The bending of FI1 makes at least part of one side of the first film member FI1 surround at least part of the bending area BA2 of the second film member FI2, so that the extension line EL passing through the first film member FI1 forms an angle with the virtual horizontal line HL. Right angle or substantially right angle (for example: the first bending step); in a state where the extension line FL of the first film member FI1 and the virtual horizontal line HL are at right angles, the bending is guided The member BG is in contact with the first film member FI1; and in the state where the bending guide BG is in contact with the first film member FI1, the bending head BH is allowed to bend the first film member FI1 (for example, the second bending step).

First, the first film member FI1 may be bent so that the angle formed by the extension line EL penetrating the first film member FI1 and the virtual horizontal line HL is a right angle (for example, the first bending step). However, the angle formed by the extension line EL passing through the first film member FI1 and the virtual horizontal line HL is not limited to a right angle or a substantially right angle may range from about 70° to about 80°.

Then, the bending guide BG may contact the first film member FI1. When the bending guide BG1 is attached to the first film member FI1, the force (for example, tension) acting on the first film member FI1 can be changed according to the bending change, and therefore the bending of the first film member FI1 can see the force change And the impact.

Next, referring to Fig. 11, in a state where the bending guide BG is in contact with the first film member FI1 (for example, the second bending step), the first film member FI1 can be bent through the bending head BH.

When the bending guide BG is attached to the first film member FI1 for bending, the position of the second bending line BL1_2 of the first film member FI1 can be changed or adjusted. For example: in the embodiment, compare when the bending guide BG is not attached to the first film member FI1, or when the bending guide BG is omitted, the position of the second bending line BL1_2 will be shifted in the x-axis direction, and Therefore, the gap g between the first film member FI1 and the second film member FI2 may increase or be stably maintained.

Figures 12 and 13 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of the present invention. Figs. 12 and 13 show an apparatus for manufacturing a display device according to another embodiment of the present invention which is different from the embodiment of Fig. 1. The apparatus includes a front bending head BH_f and a rear bending head BH_b.

In the operation of the apparatus for manufacturing the display device in FIGS. 12 and 13, in the state where the bending head BH is fixed to the first film member FI1 including the first film member FI1, the first film member The bending of FI1 makes at least part of one side of the first film member FI1 surround at least part of the bending area BA2 of the second film member FI2, and the front bending head BH_f is in contact with the second surface FI1_2 of the first film member FI1 In the state that the extension line EL passing through the first film member FI1 and the virtual horizontal line HL form a right angle (for example: the first bending step); the extension line EL of the first film member FI1 and the virtual horizontal line HL form an angle When the angle is at a right angle, the front bending head BH_f is detached from the first film member FI1, and the rear bending head BH_b is brought into contact with the first surface FI1_1 of the first film member FI1; and the rear bending head BH_b is in contact with the first film member FI1 The first film member FI1 is bent in a state where the first surface FI1_1 of FI1 is in contact (for example, the second bending step).

First, in a state where the front bending head BH_f is in contact with the second surface FI1_2 of the first film member FI1 (e.g., the first bending step), the first film member FI1 is bent, so that the extension line EL of the first film member FI1 and The virtual horizontal line HL forms a right angle or substantially a right angle. However, the angle formed by the extension line EL of the first film member FI1 and the virtual horizontal line HL is not limited to a right angle or the angle range of the substantially right angle may be about 70° to about 80°.

)與後彎曲頭BH_b的接觸(參考第13圖的

)可併行、同時或相繼地執行。 Then, referring to Figure 13, in a state where the extension line EL of the first film member FI1 and the virtual horizontal line HL form a right angle, the front bending head BH_f can be detached from the first film member FI1 and can cause the rear bending head BH_b It contacts the first surface FI1_1 of the first film member FI1. Detachment of the front bending head BH_f (refer to Figure 13

) Contact with the back bending head BH_b (refer to Figure 13

) Can be executed in parallel, simultaneously or successively.

Next, referring to Fig. 14, in a state where the back bending head BH_b is in contact with the first surface FI1_1 of the first film member FI1, the first film member FI1 can be bent (for example, the second bending step).

When some bending is performed by dragging the first film member FI1 from the front side (for example, the first bending step), the bending can be performed more smoothly.

In addition, when the remaining bending is performed by pushing the rear side of the first film member FI1 (for example: the second bending step), sufficient space can be ensured for the alignment and pressing of the first film member FI1, and the first film member FI1 FI1 can be aligned and pressed more accurately.

Figures 15 and 16 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of this experiment. Figures 15 and 16 show an apparatus for manufacturing a display device according to another embodiment of this experiment, which can be configured such that the stage support SU is set at the highest position (for example: the highest position with respect to gravity) And the operating unit TR, the carrier ST, and the processing object T are successively arranged under the carrier support SU.

In this embodiment, the calibration measurement unit CA1 may be arranged at the lower part (for example, under the processing object T) and may face the upper part (for example, face up) to measure the alignment.

As shown in FIG. 15, when the processed object T is set to be suspended from the stage ST, part of the first film member FI1 is in an initial state where no external force is applied and is pulled down by gravity (for example, it can hang down).

)，且在彎曲頭BH固定在第一薄膜構件FI1上的狀態下(參考第16圖的

)，彎曲第一薄膜構件FI1使得至少部分的第一薄膜構件FI1的一側環繞至少部分的第二薄膜構件FI2的彎曲區域BA2。 In this embodiment, the bending of the first film member FI1 may include causing the bending head BH to contact the first film member FI1 (refer to FIG. 15

), and in the state where the bending head BH is fixed on the first film member FI1 (refer to Figure 16

), the first film member FI1 is bent so that at least one side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2.

In Figure 16, with the bending head BH fixed on the first film member FI1, the first film member FI1 is bent so that at least one side of the first film member FI1 surrounds at least a part of the second film member FI2. The bending area BA2 of FIG. 1 is different from the similar process in the embodiment of FIG. 1. The bending head BH pushes the first film member FI1 upward.

In addition, in Figure 16, the alignment measurement by the calibration measurement unit CA1 is different from the similar process in the embodiment in Figure 1. The calibration measurement unit CA points upward.

Figures 17 to 19 are cross-sectional views of an apparatus for manufacturing a display device according to another embodiment of the present invention. Figures 17 to 19 show an apparatus for manufacturing a display device according to another embodiment of the present invention that is different from the embodiment of Figure 15. The apparatus includes a front bending head BH2_f and a back bending head BH2_b.

According to the operation of the apparatus for manufacturing the display device of the embodiment of FIG. 17 to FIG. 19, in the state where the bending head BH is fixed on the first film member FI1 including the bending first film member FI1, the first film member FI1 Bending such that at least one side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2, in a state where the front bending head BH2_f is in contact with the second surface FI1_2 of the first film member FI1 (for example: The first bending step), so that the extension line EL passing through the first film member FI1 and the virtual horizontal line HL form a right angle; in the state where the angle formed by the extension line EL of the first film member FI1 and the virtual horizontal line HL is a right angle Detach the front bending head BH2_f from the first film member FI1, and cause the rear bending head BH2_b to contact the first surface FI1_1 of the first film member FI1; and the rear bending head BH2_b to the first surface FI1 of the first film member FI1 The first film member FI1 is bent in a state where FI1_1 is in contact (for example, the second bending step).

First, in a state where the front bending head BH2_f is in contact with the second surface FI1_2 of the first film member FI1 (e.g., the first bending step), the first film member FI1 is bent, so that the extension line EL of the first film member FI1 and The virtual horizontal line HL forms a right angle or substantially a right angle. However, the angle formed by the extension line EL of the first film member FI1 and the virtual horizontal line HL is not limited to this, and the right angle or the substantially right angle may range from about 70° to about 80°.

)與後彎曲頭BH2_b與第一薄膜構件FI1的接觸(參考第18圖的

)可併行、同時或相繼地執行。 Then, referring to Figure 18, in a state where the extension line EL of the first film member FI1 and the virtual horizontal line HL form a right angle, the front bending head BH2_f can be detached from the first film member FI1 and can cause the rear bending head BH2_b It contacts the first surface FI1_1 of the first film member FI1. Detachment of the front bending head BH2_f from the first film member FI1 (refer to Figure 18

) And the contact between the back bending head BH2_b and the first film member FI1 (refer to Figure 18

) Can be executed in parallel, simultaneously or successively.

Next, referring to Fig. 19, in a state where the back bending head BH2_b is in contact with the first surface FI1_1 of the first film member FI1, the first film member FI1 can be bent (for example, the second bending step).

When the bending of some of the first film members FI1 is performed by dragging from the front side (for example, the first bending step), the bending can be performed more smoothly.

In addition, when the remaining first film member FI1 is bent by pushing the front side (for example, the second bending step), sufficient space can be secured during the alignment and pressing of the first film member FI1, and the first film member FI1 You can align and press more accurately.

FIG. 20 is a cross-sectional view of an apparatus for manufacturing a display device according to another embodiment of the present invention. Fig. 21 is a conceptual diagram of an apparatus for manufacturing a display device according to the embodiment of Fig. 21. Fig. 22 is a partial plan view of a display device according to an embodiment of the present invention. FIG. 23 is a partial plan view of a display device according to another embodiment of the present invention.

Referring to FIGS. 20 to 23, the first film member FI1 of the display device according to the embodiment of the present invention includes a first panel PA1 and a first flexible printed circuit board FPC1, and the first film member FI1 of the display device according to the embodiment of the present invention The two film members FI2 include a second panel PA2 and a second flexible printed circuit board FPC2.

Referring to FIG. 20, the first panel PA1 and the first flexible printed circuit board FPC1 can be disposed on the first adhesive layer AD1. For example, the first adhesive layer AD1 can be attached to the first panel PA1 and the first flexible printed circuit board FPC1 to the window WI.

In an embodiment, the first panel PA1 may be a touch screen panel (TSP), and in such an embodiment, the first flexible printed circuit board FPC1 is used to generate control signals or send control signals to the first panel PA1.

The first panel PA1 and the first flexible printed circuit board FPC1 may contact each other at a first contact portion BP1 provided on one side of the first panel PA1. The first panel PA1 and the first flexible printed circuit board FPC1 may be in contact with each other through an anisotropic conductive film (ACF). In some embodiments, the first panel PA1 and the first flexible printed circuit board FPC1 may be electrically connected to each other.

In an embodiment, the first panel PA1 may be rigid, and the first flexible printed circuit board FPC1 may be flexible.

In another embodiment, both the first panel PA1 and the first flexible printed circuit board FPC1 may be flexible.

In an embodiment, the first panel PA1 and the first flexible printed circuit board FPC1 are formed independently of each other and connected to each other, but in another embodiment, the first panel PA1 and the first flexible printed circuit board FPC1 may be Formed in one body. In this embodiment, both the first panel PA1 and the first flexible printed circuit board FPC1 may be flexible.

In an embodiment, the first bending area BA1 may be formed on the first flexible printed circuit board FPC1. For example, the first panel PA1 has a flat surface, and the first flexible printed circuit board FPC1 has a first bending area BA1.

The second adhesive layer AD2 may be disposed on the first panel PA1. The second adhesive layer AD2 may be the same or substantially the same as the device for manufacturing the display device according to other embodiments of the present invention described above.

The second panel PA2 may be disposed on the second adhesive layer AD2. In an embodiment, the second panel PA2 may be a display panel.

The second flexible printed circuit board FPC2 may be disposed on one side of the second panel PA2. The second flexible printed circuit board FPC2 is used to generate control signals or send control signals to the second panel PA2.

The drive chip used to produce drive signals can be directly mounted on the second panel PA2, mounted on the second flexible printed circuit board FPC2, or mounted on an additional printed circuit board.

The second panel PA2 may have a second bending area BA2 on one side thereof. The second bending area BA2 of the second panel PA can be formed by bending the flexible second panel PA2 or by processing the rigid second panel PA2.

FIG. 20 shows an embodiment in which the second panel PA2 has a second bending area BA2, but the present invention is not limited to this.

In another embodiment, the second panel PA2 may have a flat surface, and the second flexible printed circuit board FPC2 may be bent to have the second bending area BA2.

In addition, FIG. 20 shows an embodiment in which the second panel PA2 and the second flexible printed circuit board FPC2 are formed independently of each other and connected to each other. However, in another embodiment, the second panel PA2 and the second flexible printed circuit board FPC2 may be integrally formed. In such an embodiment, the second panel PA2 and the second flexible printed circuit board FPC2 may be flexible.

In an embodiment, the second panel PA2 has a first flat surface PA2_F1 and a second flat surface PA2_F2. The first flat surface PA2_F1 and the second flat surface PA2_F2 of the second panel PA2 may be opposite to each other and spaced apart from each other (for example, separated by an interval).

The third adhesive layer AD3 may be inserted between the first flat surface PA2_F1 and the second flat surface PA2_F2 of the second panel PA2. The third adhesive layer AD3 may be the same or substantially the same as the device for manufacturing the display device according to the embodiment of the present invention as described above.

For example, the second panel PA2 and the second flexible printed circuit board FPC2 can be attached to each other on the second contact portion BP2 on one side of the second flat surface PA2_F2 of the second panel PA2.

The second panel PA2 and the second flexible printed circuit board FPC2 may be in contact with each other through an anisotropic conductive film (ACF). In the same embodiment, the second panel PA2 and the second flexible printed circuit board FPC2 can be electrically connected to each other.

The fourth adhesive layer AD4 may be formed (or applied) on the second flat surface PA_F2, for example, formed (or applied) on the opposite side of the third adhesive layer AD3. The fourth adhesive layer AD4 is the same or substantially the same as the device for manufacturing the display device according to the embodiment of the present invention described above.

The first flexible printed circuit board FPC1 may be disposed on the fourth adhesive layer AD4. The first flexible printed circuit board FPC1 can be bent and extends from the first panel PA1 to the upper part of the fourth adhesive layer AD4.

Therefore, part of the first flexible printed circuit board FPC1 can be attached to the second flat surface PA2_F2 of the second panel PA2 through the fourth adhesive layer AD4.

Next, an apparatus for manufacturing a display device according to an embodiment of the present invention will be described.

First, the processing object T having the above-mentioned configuration can be provided or placed on the stage ST. Then, the first flexible printed circuit board FPC1 can be bent. The bending of the first flexible printed circuit board FPC1 may include contacting the bending head BH to the first flexible printed circuit board FPC1, and bending the first flexible printed circuit board FPC1, and fixing the bending head BH on the first flexible printed circuit board FPC1. In the state of the flexible printed circuit board FPC1, at least part of one side of the first flexible printed circuit board FPC1 surrounds at least part of the bending area BA2 of the second panel PA2.

In an embodiment, the trajectory of the bending head BH may be arc-shaped. In another embodiment, the trajectory of the bending head BH may be arcs with different curvatures. In another embodiment, the trajectory of the bending head BH2 may be a combination of one or more straight lines and one or more curved lines.

During the bending of the first flexible printed circuit board FPC1, the bending head BH is fixed on the first flexible printed circuit board FPC1 so that at least part of one side of the first flexible printed circuit board FPC1 surrounds at least Part of the bending area BA2 of the second panel PA2, the first flexible printed circuit board FPC1 and the second panel PA2 may be separated from each other (for example, separated by an interval). For example: the first flexible printed circuit board FPC1 and the second panel PA2 are not in contact with each other.

After bending the first flexible printed circuit board FPC1, when the bending head BH is fixed to the first flexible printed circuit board FPC1, it can be located on the second flat surface PA2_F2 of the second panel PA at the same time.

Then, the alignment is measured by the calibration measuring unit CA. After the alignment is measured, the first flexible printed circuit board FPC1 can be pressed and attached to the second panel PA2. The first flexible printed circuit board FPC1 and the second panel PA2 are attached, and the bending head BH presses the first flexible printed circuit board FPC1 toward the second panel PA to press the first flexible printed circuit board FPC1 and the second panel PA. The two panels PA are attached together. In the embodiment, the bending head BH presses the first flexible printed circuit board FPC1, but the present invention is not limited to this. In another In one embodiment, the additional pressing member can press the first flexible printed circuit board FPC1 to attach the first flexible printed circuit board FPC1 and the second panel PA2 together.

Figure 21 shows a first panel PA1, a first flexible printed circuit board FPC1, a second panel PA2, and a second flexible printed circuit board FPC2 in an apparatus for manufacturing a display device according to an embodiment of the present invention.

The second panel PA2 may include a display area DA for displaying images and a non-display area NDA for arranging various signal lines to display images in the display area DA.

In an embodiment, the display area DA may be on the first flat surface PA2_F1 of the second panel PA2, and the non-display area NDA may be on the second curved area BA2 and the second flat surface PA2_F2 of the second panel PA2. For example, the second bending area BA2 can be a non-display area NDA, so that various signal lines, electrode pads, etc. can be arranged on the second bending area BA2.

FIG. 22 is a plan view of the first flexible printed circuit board FPC1 and the first panel PA1 of the display device according to the embodiment of the present invention.

Referring to FIG. 22, the first flexible printed circuit board FPC1 may include a plurality of contact hands (for example, contact extensions) and a body BO. Figure 22 shows an embodiment in which the first flexible printed circuit board FPC1 includes a first contact hand H1, a second contact hand H2, and a third contact hand H3, but the number of contact hands is not limited to this. For example, in another embodiment, the number of touching hands may be less than three or more than three.

In an embodiment, the first contacting hand H1, the second contacting hand H2, and the third contacting hand H3 can be expanded in one direction and spaced apart (e.g., spaced apart) (e.g., spaced apart from each other in the other direction). open).

When the first flexible printed circuit board FPC1 includes a first contact hand H1, a second contact hand H2, and a third contact hand H3, and the first contact portion BP1 of the first panel PA1 includes a first hand contact portion. ) H1_b. The second handle serves as the contact portion H2_b and the third handle serves as the contact portion H3_b. For example: the first contact hand H1, the second contact hand H2, and the third contact hand H3 respectively correspond to the first hand contact portion H1_b, the second handle as the contact portion H2_b, and the third handle as the contact portion H3_b, and the first contact hand H1, the second contact hand H2 and the third contact hand H3 can respectively contact the first hand contact part H1_b, the second handle as the contact part H2_b, and the third handle as the contact part H3_b.

In an embodiment, the first bending line BL1_1 and the second bending line BL1_2 of the first flexible printed circuit board FPC1 may pass through the first contact hand H1, the second contact hand H2, and the third contact hand H3. In this embodiment, the hole HO (for example, a cutout or a hole) may be formed in the first flexible printed circuit board FPC1, and in a state where the first flexible printed circuit board FPC1 is bent, the hole HO may be at least partially The second bending area BA2 of the second panel PA2 is exposed to the ground. As described above with reference to Figure 1, the laser measuring unit LA irradiates the second bending area BA2 of the second panel PA2 with a laser beam through the hole HO to measure the difference between the second panel PA2 and the first flexible printed circuit board FPC1 Between the gap g.

In an embodiment, the first contact hand H1 and the third contact hand H3 may be in contact with one side (for example, one surface) of the first panel PA1, and the second contact hand H2 may be in contact with the other side of the first panel PA1 ( For example: another surface) contact. For example, one contact hand can be used as an adjacent contact hand to contact the opposite surface of the first panel PA1.

One end of the first contact hand H1, the second contact hand H2 and the third contact hand H3 may be connected to the first panel PA1, and the other end thereof may be connected to the body BO. In an embodiment, the first contact hand H1, the second contact hand H2 and the third contact hand H3 may be integrally formed with the body BO.

In an embodiment, the bending head BH may contact the main body BO. For example, the main body BO may include a connection part CP contacting the elbow BH.

One end of the body BO may be connected to the first contact hand H1, the second contact hand H2, and the third contact hand H3.

FIG. 23 is a plan view of the second flexible printed circuit board FPC2 and the second panel PA2 according to an embodiment of the present invention.

Referring to FIG. 23, the second panel PA2 may include a display area DA and a non-display area NDA at the periphery of the display area DA.

The second bending area BA2 may be formed on one side of the second panel PA2. For example, the first bending line BL2_1 and the second bending line BL2_2 may be formed on one side of the second panel PA2.

In an embodiment, the first alignment mark A1 and the second alignment mark A2 may be formed on the second panel PA2. The second alignment mark A2 may be provided on one side of the second panel PA2. In a state where one side of the second panel PA2 is bent, the alignment measurement unit CA confirms that the first alignment mark A1 and the second alignment mark A2 are aligned or substantially aligned, thereby confirming that the bending of the second panel PA2 has been correctly performed.

The second contact part BP2 may be formed on one side of the second panel PA2. The flexible printed circuit board FPC2 may be in contact with the second contact portion BP2 to attach the second flexible printed circuit board FPC2 and the second panel PA2 to each other.

The second flexible printed circuit board FPC2 has a thin plate structure and may have various planar shapes. FIG. 23 shows that the second flexible printed circuit board FPC2 has a rectangular shape, but the shape of the second flexible printed circuit board FPC2 is not limited to this embodiment.

Fig. 24 is a partial plan view of a display device according to another embodiment of the present invention. Figures 25 and 26 are cross-sectional views for explaining the operation of an apparatus for manufacturing a display device according to another embodiment of the present invention.

The display device according to the embodiment of the present invention shown in FIG. 24 is different from the embodiment of FIG. 22. The display device in FIG. 24 includes an auxiliary tape LI attached to the first flexible printed circuit FPC1.

In an embodiment, the auxiliary tape LI may be attached to the first flexible printed circuit board FPC1. The auxiliary tape LI may be attached to the main body BO of the first flexible printed circuit FPC1. When the auxiliary tape LI is attached to the first flexible printed circuit board FPC1, the bending head BH may contact the auxiliary tape LI. For example, a connecting part connecting the auxiliary tape LI and the bending head BH can be formed.

When the area of the first flexible printed circuit board FPC1 where the bending head BH contacts (or is configured) is relatively small, the contact between the bending head BH and the first flexible printed circuit board FPC1 may be unstable and thus malfunction.

As described above, when the bending head BH is in contact with the auxiliary tape LI, a sufficient contact area can be ensured, and the bending operation can be performed more stably.

The operation of an apparatus for manufacturing a display device according to another embodiment of the present invention will be described with reference to FIGS. 25 and 26.

In FIGS. 25 and 26, the bending of the flexible printed circuit board FPC1 includes attaching the auxiliary tape LI to the first flexible printed circuit board in the operation of the apparatus for manufacturing the display device according to the embodiment FPC1; contact the elbow BH with the auxiliary tape LI; bend the first flexible printed circuit board FPC1 with the auxiliary tape LI fixed by the bending head BH, so that at least part of the first flexible printed circuit board FPC1 is on one side Surround at least part of the second bending area BA2 of the second panel PA2; then remove the auxiliary tape LI.

Referring to FIG. 25, in an initial state where no other external force is applied and the bending head BH is in contact with the auxiliary tape LI, the auxiliary tape L1 may be attached to the first flexible printed circuit board FPC1.

Next, referring to Figure 26, in the state where the auxiliary tape LI is fixed to the bending head BH, the first flexible printed circuit board FPC1 can be bent so that at least part of one side of the first flexible printed circuit board FPC1 surrounds at least part of the The second bending area BA2 of the second panel PA2.

Then, remove the auxiliary tape LI. In an embodiment, the removal of the auxiliary tape LI may be performed before or after the alignment is measured by the calibration measurement unit CA.

In another embodiment, the auxiliary tape LI may be removed after pressing the first flexible printed circuit board FPC1 through the pressing member PR2 to attach the first flexible printed circuit board FPC1 and the second panel PA2 together.

In an embodiment, the auxiliary tape LI may be the auxiliary tape whose adhesion is weakened by UV irradiation or its adhesion is relatively weak in the peeling direction.

Hereinafter, a method of manufacturing a display device according to an embodiment of the present invention will be described. In the following embodiments, components that are the same or substantially the same as those that have already been described are lifted by the same signs, and the lengthy description thereof will be omitted or simplified.

FIG. 27 is a block diagram illustrating a method of manufacturing a display device according to an embodiment of the present invention.

Referring to FIG. 27, a method of manufacturing a display device according to an embodiment of the present invention includes preparing S1, bending S2, and pressing and attaching S3.

The method of manufacturing a display device according to an embodiment of the present invention may be executed by using any of the above-mentioned apparatuses for manufacturing a display device according to the embodiment of the present invention. However, this method can also be executed by other devices.

For example, the method for manufacturing a display device according to an embodiment of the present invention includes all the actions described above regarding the device for manufacturing a display device according to the embodiment of the present invention.

The preparation S1 includes preparing the processing object T, and placing the prepared processing object T on the carrier ST.

The processed object T may be the same or substantially the same as the above-mentioned apparatus for manufacturing a display device according to some embodiments. For example, the processed object T can be the same as or essentially the same as that described in Fig. 1 and Fig. 20. After the processed object T is placed on the stage ST to fix the processed object T, bending can be performed.

In one embodiment, bending S2 may include bringing the bending head BH into contact with the first surface FI1_1 of the first film member FI1, and bending the first film member FI1 in a state where the bending head BH fixes the first film member FI1, so that One side of at least part of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2 (refer to, for example, Figures 2 and 3).

In this embodiment, the first film member FI1 and the second film member FI2 (refer to, for example: Figure 3) may be spaced apart (for example: separated by an interval), or may be at least partially in contact with the second film member FI2 (refer to , For example: Figure 4).

When the first film member FI1 is at least partially in contact with the second film member FI2, the bending S2 may include measuring the force applied to the stage ST and/or pushing the rod RO toward the cylinder SY to move the carrier ST.

In another embodiment, the bending S2 may include moving the stage ST downward by rotating the stage ST (refer to, for example, FIG. 7).

In another embodiment, the bending S2 may include bending the first film member FI1, and the first finger F1 and the second finger F2 of the bending head BH are fixed on the first film member FI1 such that at least One side of part of the first film member surrounds at least part of the bending area of the second film member FI2 BA2, and the pressing member PR is brought into contact with the first film member FI1, and the bending head BH is detached from the first film member FI1 (refer to, for example, Fig. 8).

In another embodiment, the bending S2 may include bending the first film member FI1 so that the angle formed by the extension line EL of the first film member FI1 and the virtual horizontal line HL is a right angle (for example: the first bending step); When the angle formed by the extension line EL of the film member FI1 and the virtual horizontal line HL is at right angles, the bending guide BG is in contact with the first film member FI1; and in the state where the bending guide BG is in contact with the first film member FI1 , Allow the bending head BH to bend the first film member FI1 (for example, the second bending step) (refer to, for example, Fig. 10 and Fig. 11).

In another embodiment, the bending S2 may include bending the first film member FI1, so that the extension line EL of the first film member FI1 is in contact with the second surface FI1_2 of the first film member FI1 when the front bending head BH_f is in contact with the second surface FI1_2 of the first film member FI1. The angle formed by the virtual horizontal line HL is a right angle (for example: the first bending step); in a state where the angle formed by the extension line EL of the first film member FI1 and the virtual horizontal line HL is a right angle, it is detached from the first film member FI1 The front bending head BH_f, and the rear bending head BH_b is in contact with the first surface FI1_1 of the first film member FI1; then, the first film is bent in a state where the rear bending head BH_b is in contact with the first surface FI1_1 of the first film member FI1 The member FI1 (e.g., the second bending step) (refer to, e.g., Figures 12 to 14).

)且在彎曲頭BH固定在第一薄膜構件FI1的狀態下，彎曲第一薄膜構件FI1使得至少部分的第一薄膜構件FI1的一側環繞至少部分的第二薄膜構件FI2的彎曲區域BA2(參考，例如：第16圖的

)。 In another embodiment, when the first film member FI1 is pulled down (for example: pulled down by gravity), the bending S2 may include bringing the bending head BH into contact with the first film member FI1 (refer to, for example: Fig. 15

) And in the state where the bending head BH is fixed to the first film member FI1, the first film member FI1 is bent so that at least one side of the first film member FI1 surrounds at least a part of the bending area BA2 of the second film member FI2 (refer to , For example: in Figure 16

).

In another embodiment, the processed object T may be configured such that the first film member FI1 includes the first panel PA1 and the first flexible printed circuit board FPC1, and the second film member FI2 includes the second panel PA2 and the second panel PA2. Flexible printed circuit board FPC2.

For example, in another embodiment, bending S2 may include contacting the bending head BH with the first flexible printed circuit board FPC1, and bending the bending head BH in the state where the bending head BH is fixed on the first flexible printed circuit board FPC1 The first flexible printed circuit board FPC1 is such that at least part of one side of the first flexible printed circuit board FPC1 surrounds at least part of the bending area BA2 of the second panel PA2 (refer to, for example, FIG. 20).

In another embodiment, the first flexible printed circuit board FPC1 may include a plurality of contact hands, and the bending head BH may contact the connecting portion CP of the main body BO of the first flexible printed circuit board FPC1 (refer to, for example, : Picture 22)

In another embodiment, bending S2 may include attaching the auxiliary tape LI to the first flexible printed circuit board FPC1; making the bending head BH contact the auxiliary tape L1; in the state where the elbow BH is fixed to the auxiliary tape L1 , Bend the first flexible printed circuit board FPC1 so that at least part of the first flexible printed circuit board FPC1 surrounds at least part of the bending area BA2 of the second panel PA2; then remove the auxiliary tape LI.

After bending S2, pressing and attaching S3 can be performed. The pressing and attaching S3 may include allowing the bending head BH to press the first film member FI1 toward the second film member FI2 to attach the first film member FI1 and the second film member FI2 together. Although the embodiment in which the bending head BH presses the first film member FI1 is exemplified, the present invention is not limited to this. In another embodiment, the additional pressing member may press the first film member FI1 to attach the first film member FI1 and the second film member FI2 together.

In addition, in another embodiment, the first film member FI1 and the second film member FI2 may be replaced by the first flexible printed circuit board FPC1 and the second panel PA2, respectively.

Pressing and attaching S3 may be performed once, but in other embodiments, it may be performed two or more times. For example, the front pressing (for example, the first pressing and attaching step) may be performed first, and then the pressing and attaching S3, FI2 may be performed after adjusting and checking the alignment of the first film member FI1 and the second film member FI2.

The method of manufacturing a display device according to an embodiment of the present invention may include a plurality of alignment steps.

For example, a method for manufacturing a display device according to an embodiment of the present invention may include a first alignment SA1, a second alignment SA2, and a third alignment SA3. However, this is illustrative, and the number of alignment steps is not limited to three. In other embodiments, some of the above-mentioned alignment steps may be omitted. According to some embodiments of the present invention, alignment can be performed through the calibration measurement unit CA, but the present invention is not limited to this.

The first alignment SA1 can be performed between the preparation S1 and the bending S2. The first alignment SA1 may include checking and adjusting the alignment of the processing object T and the stage ST. For example, the first alignment SA1 may include the adjustment and alignment of the processing object T and the stage ST.

The second alignment SA2 may be performed between bending S2 and pressing and attaching S3. The second alignment SA2 may include checking and adjusting the alignment of the first film member FI1 and the second film member FI2 or the alignment of the first flexible printed circuit board FPC1 and the second panel PA2.

The third alignment SA3 may be performed after pressing and attaching S3. The third alignment SA3 may include checking the final alignment in the attached state. In an exemplary embodiment where the pressing and attaching S3 includes the first pressing and attaching and the second pressing and attaching, the third alignment SA3 may be performed between the first pressing and attaching and the second pressing and attaching.

The method of manufacturing a display device according to an embodiment of the present invention may include a first inspection I1.

The first inspection I1 can be performed by the laser measurement unit LA. The first inspection I1 may include measuring the gap g between the first film member FI1 and the second film member FI2 by irradiating the first film member FI1 and/or the second film member FI2 with a laser.

In another embodiment, the first inspection I1 may be performed between bending S2 and pressing and attaching S3. However, the present invention is not limited to this. In another embodiment, the first inspection I1 may be performed continuously or intermittently during the bending S2. In addition, in an exemplary embodiment in which the pressing and attaching S3 includes the first pressing and attaching and the second pressing and attaching, the first inspection I1 may be between the first pressing and attaching and the second pressing and attaching. implement.

FIG. 28 is a cross-sectional view explaining a method of manufacturing a display device according to another embodiment of the present invention.

FIG. 28 shows a method of manufacturing a display device according to another embodiment of the present invention. Preparing an object for processing may include forming (or providing) a first adhesive layer AD1; forming (or placing) a first adhesive layer AD1 on the first adhesive layer AD1. A film member FI1; forming (or placing) a second adhesive layer AD2 on the first film member FI1; and forming (or placing) a second film member FI2 on the second adhesive layer AD2. In some embodiments, the end of the first adhesive layer AD1 may be outside the end of the second adhesive layer AD2 (for example, the first adhesive layer AD1 may be longer than the second adhesive layer AD2).

The position of the first bending line BL1_1 of the first film member FI1 can be changed or adjusted according to the positions of the ends of the first adhesive layer AD1 and the second adhesive layer AD2 disposed above and/or below the first film member FI1 .

For example: as shown in Figure 28, when the end a1 of the first adhesive layer AD1 is formed on the outer side relative to (for example, beyond) the end a2 of the second adhesive layer AD2, cf. the first adhesive layer AD1 end In the embodiment where the ends of the second adhesive layer AD2 and the second adhesive layer AD2 are aligned with each other, the first bending line BL1_1 can be displaced in the +x-axis direction. For example, in the embodiment of FIG. 28, the first bending line BL1_1 may be outside (or farther) from the end a1 of the first adhesive layer AD1. Since the end a1 of the first adhesive layer AD1 can be pulled down on the first film member FI, the first bending line BL1_1 outside the end a1 of the first adhesive layer AD1 can suppress the bending of the first film member FI1.

When the first bending line BL1_1 moves in the +x axis direction, the gap g between the second bending area BA2 of the first film member FI1 and the second film member FI2 may be stably maintained. Therefore, the contact between the first film member FI1 and the second bending area BA2 of the second film member FI2 can be suppressed (for example: avoided or essentially avoided) during bending.

In some embodiments, the end a3 of the third adhesive layer AD3 may be disposed between the end a1 of the first adhesive layer AD1 and the end a2 of the second adhesive layer AD2. When the end a3 of the third adhesive layer AD3 is arranged outside the end a1 of the first adhesive layer AD1, because the first bending line BL2_1 of the second film member FI2 is offset in the +x axis direction, it can be set The end a3 of the third adhesive layer AD3 is inside (for example, before) the end a1 of the first adhesive layer AD1.

Explain again from the perspective of the bending line, when the adhesive layer has the structure shown in Figure 28, the first bending line BL1_1 of the first film member FI1 can be aligned with the end a1 of the first adhesive layer AD1 or arranged outside .

For example: the first bending line BL1_1 of the first film member FI1 and the second bending line BL1_2 of the first film member FI1 may be aligned with each other, or the first bending line BL1_1 of the first film member FI1 may be arranged relative to the second film member FI2 outside of the first bending line BL2_1.

FIG. 29 is a cross-sectional view explaining a method of manufacturing a display device according to another embodiment of the present invention.

FIG. 29 shows a method for manufacturing a display device according to another embodiment of the present invention. Preparing an object for processing may include forming (or providing) a first adhesive layer AD1; forming (or providing) on the first adhesive layer AD1 The first film member FI1; a second adhesive layer AD2 is formed (or provided) on the first film member FI1. In some embodiments, the end of the second adhesive layer AD2 may be located outside of the end of the first adhesive layer AD1.

The position of the first bending line BL1_1 of the first film member FI1 can be changed or adjusted according to the positions of the ends of the first adhesive layer AD1 and the second adhesive layer AD2 above and/or below the first film member FI1 .

For example: as shown in Figure 29, when the end a2 of the second adhesive layer AD2 is on the outer side with respect to the end a1 of the first adhesive layer AD1, compare when the first adhesive layer AD1 is connected to the second adhesive layer AD1. The ends of the layers AD2 are aligned with each other, and the first bending line BL1_1 may be displaced in the +x-axis direction. In this case, the first bending line BL1_1 may be aligned with the end a2 of the second adhesive layer AD2, or may be disposed outside the end a2 of the second adhesive layer AD2. Since the end a2 of the second adhesive layer AD2 can be pulled down on the first film member FI1, the above-mentioned structure of the ends of the first and second adhesive layers AD1 and AD2 can suppress the bending of the first film member FI1.

When the first bending line BL1_1 can be displaced in the +x axis direction, the gap g between the second bending area BA2 of the first film member FI1 and the second film member FI2 can be kept stable. Therefore, during the bending, the contact between the first film member FI1 and the second bending area BA2 of the second film member FI2 can be suppressed (for example: avoided or essentially avoided).

In some embodiments, the end a3 of the third adhesive layer AD3 may be disposed between the end a1 of the first adhesive layer AD1 and the end a2 of the second adhesive layer AD2. When the end a3 of the third adhesive layer AD3 is arranged outside the end a2 of the second adhesive layer AD2, the first bending line of the second film member FI2 BL2_1 can be displaced in the +x axis direction, and the end a3 of the third adhesive layer AD3 can be disposed inside the end a2 of the second adhesive layer AD2.

Explain again from the perspective of the bending line, when the adhesive layer has the structure shown in FIG. 29, the first bending line BL1_1 of the first film member FI1 can be aligned with the end a2 of the second adhesive layer AD2 or arranged outside .

For example, the first bending line BL1_1 of the first film member FI1 and the first bending line BL2_1 of the second film member FI2 may be aligned with each other, or the first bending line BL1_1 of the first film member FI1 may be arranged relative to the second film member. FI2 outside of the first bending line BL2_1.

Figures 30 to 32 are cross-sectional views for explaining a method of manufacturing a display device according to another embodiment of the present invention. In the method of manufacturing a display device according to another embodiment of the present invention shown in FIGS. 30 to 32, preparing S1 may include injecting (or inserting) a first film member FI1 and a second film member FI2. A support FG. The first support FG may be arranged to be in contact with the end of the second adhesive layer AD2. In an embodiment, the first support FG may be a gel-type support. The colloidal support FG can be arranged between the second bending area BA2 of the first film member FI1 and the second film member FI2 by using capillary phenomena or the like. However, this is illustrative, and the method of setting the first support FG is not limited to this.

Next, referring to FIG. 31, the bending of the first film member FI1 may be performed in a state where the support FG is injected therebetween. The first bending line BL1_1 of the first film member FI1 can be displaced through the support FG injected between the first film member FI1 and the second bending area BA2 of the second film member FI2, or can be reduced and supported by the support FG The bending curvature of the adjacent first film member FI1 of the piece FG. Therefore, the gap g between the first film member FI1 and the second bending area BA2 of the second film member FI2 can be stably maintained. As a result, the contact between the first film member FI1 and the second film member FI2 can be suppressed.

Next, referring to FIG. 32, the second support SG may be disposed between the first film member FI1 and the window WI after bending S2 or after pressing and attaching S3.

The second support SG may be used to fix the curved state of the first film member FI1 or maintain the curved shape of the first film member FI1.

Therefore, the movement of the first film member FI1 can be suppressed, and during or after the processing, the first film member FI1 can prevent the contact of the second film member FI2, thereby avoiding defects. As described above, according to the embodiment of the present invention, the component is not damaged during the bending process, and the durability of the component including the bending area can be improved.

However, the present invention provides other features than those discussed above.

Although the exemplary embodiments of the present invention have been described for illustrative purposes, it can be understood by those with ordinary knowledge in the technical field that they can be used without departing from the scope and spirit of the additional patent application disclosed by the present invention. Make various modifications, additions and/or replacements. The exemplary embodiments described herein should be considered in a descriptive sense only and not for the purpose of limitation.

AD1: the first adhesive layer

AD2: second adhesive layer

AD3: third adhesive layer

AD4: fourth adhesive layer

SY: cylinder

RO: pole

SE: sensor unit

T: Processing object

TR: operating unit

SU: Support

ST: Stage

WI: Windows

FI1: First film member

FI2: Second film member

FI1_2: The second surface of the first film member

BH: curved head

LA: Laser measuring unit

CA: Calibration measurement unit

Claims (23)

A method of manufacturing a display device, the method comprising: placing a processing object on a carrier; and bending a first film member of the processing object so that a part of one side of the first film member surrounds the processing A part of an outer side of a curved area of a second film member of the object, the first film member and the second film member of the processed object are stacked on each other; one of the cylinders is on one side of the carrier and a rod Extending between the cylinder and the carrier, and wherein when the first film member contacts the second film member during bending, the rod moves into the cylinder to cause the carrier to move. The method described in item 1 of the scope of the patent application further comprises measuring a force applied to the carrier when the first film member contacts the second film member. The method described in claim 1, wherein the bending includes lowering one end of the carrier through the rotation of the carrier. The method according to claim 1, wherein the bending comprises: making a bending head contact the first film member; and when the bending head is fixed to the first film member, bending the first film member to surround The portion of the outer side of the bending area of the second film member. The method according to claim 1, wherein the bending includes: when a bending head including a first finger and a second finger is fixed to the first film member, bending the first The film member to surround the portion of the outer side of the bending area of the second film member; and A pressing member is brought into contact with the first film member and the bending head is detached from the first film member. A method of manufacturing a display device, the method comprising: bending a first film member of a processed object so that a portion of one side of the first film member surrounds a bending area of a second film member of the processed object On an outer part, the first film member and the second film member of the processed object are laminated on each other; wherein the bending includes: bending the first film member so that an extension line of the first film member and a virtual An angle formed by the horizontal line is a right angle; a bending guide contacts the first film member; and when the bending guide contacts the first film member, a bending head is allowed to bend the first film member. A method of manufacturing a display device, the method comprising: bending a first film member of a processed object so that a portion of one side of the first film member surrounds a bending area of a second film member of the processed object A part of an outer side, the first film member and the second film member of the processed object are laminated with each other; wherein the bending includes: bending the first film member when a front bending head contacts the side of the first film member A thin film member such that an extension line of the first thin film member forms a right angle with a virtual horizontal line; the front bending head is detached from the first thin film member and a rear bending head contacts the other of the first thin film member One side; and When the back bending head is fixed to the first film member, the first film member is bent. A method of manufacturing a display device, the method comprising: bending a first film member of a processed object so that a portion of one side of the first film member surrounds a bending area of a second film member of the processed object A part of an outer side, the first film member and the second film member of the processed object are laminated with each other; wherein the first film member includes a first panel and a first flexibility in contact with the first panel A printed circuit board, wherein the second film member includes a second panel and a second flexible printed circuit board in contact with the second panel, wherein the second panel has a bending area, and when a bending head is fixed When reaching the first flexible printed circuit board, the bending includes bending the first flexible printed circuit board so that a part of one side of the first flexible printed circuit board surrounds the bend of the second panel An outer part of the area. The method according to claim 8, wherein the bending comprises: attaching an auxiliary tape to the first flexible printed circuit board; and when the bending head contacts the first flexible printed circuit board, bending The first flexible printed circuit board is such that the part of the side of the first flexible printed circuit board surrounds the part of the outer side of the bending area of the second panel. The method described in item 8 of the scope of application, wherein the first flexible printed circuit board includes a plurality of contact hands, and the contact hands are connected to each Connected to the first panel. According to the method described in claim 8, wherein the processed object further includes a first adhesive layer and a second adhesive layer, and wherein the first adhesive layer, the first film member, and the second adhesive layer The adhesive layer and the second film member are successively laminated. The method described in item 11 of the scope of patent application, wherein one end of the first adhesive layer is outside of one end of the second adhesive layer. The method described in item 11 of the scope of patent application, wherein one end of the second adhesive layer is outside the one end of the first adhesive layer. According to the method described in item 11 of the scope of patent application, it further includes arranging a first support between the bending area of the first film member and the second film member. The method described in item 14 of the scope of the patent application further includes providing a second support member that maintains the curved shape of the first film member after bending. The method described in item 8 of the scope of patent application, wherein a plurality of electronic components are on the first film member. The method described in item 8 of the scope of patent application further includes measuring a gap between the first film member and the second film member after bending. The method described in item 8 of the scope of patent application further includes checking the alignment of the first film member and the second film member. An apparatus for manufacturing a display device, the apparatus comprising: a carrier configured to accommodate a processing object, the processing object including a first film member laminated on a second film member, the second film member having a curve area; A rod on one side of the carrier; a cylinder, the rod extending into the cylinder; and a bending head, arranged to contact the first film member and bend the first film member so that one of the first film member A part of the side surrounds a part of an outer side of the bending area of the second film member; wherein when the first film member contacts the second film member during bending, the rod moves into the cylinder to cause The movement of the carrier. The device described in item 19 of the scope of patent application further includes a sensor on one side of the carrier. The device described in item 19 of the scope of patent application further includes a laser measurement unit adjacent to the curved area. The device described in item 19 of the scope of patent application further includes a calibration and measurement unit on the carrier. The device described in item 19 of the scope of patent application further includes a sensor on one side of the bending head.

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