KR20100112103A - Method for manufacturing display device having optical/electronic structures - Google Patents

Abstract

PURPOSE: A manufacturing method of a display device having an optical/electronic structure in a first side of a release film is provided to prevent the deterioration of the display device by attaching the optical/electronic structure on the display device. CONSTITUTION: An optics/electronic structure is formed on the first side of the release film in which the liquid or the gel-like adhesive is spreaded(S11). The first side of the release film is stickig in the substrate or film(S12). Only the release film devides into the state where the optics / electronic structure is attached to substrate or film from substrate or film and it eliminates(S13).

Description

Method for Manufacturing Display Device Having Optical / Electronic Structures}

The present invention relates to a method of manufacturing a display device having an optical / electronic structure, and more particularly, a micro lens or a color filter or a polarizing layer having a predetermined shape for changing an optical path on a substrate surface or a film surface using a release film. By forming an optical structure for imparting specific optical properties, or by forming an electronic structure such as an electrode pattern or a circuit on the substrate or film surface, an optical / electronic structure for facilitating a manufacturing process and obtaining a uniform structure pattern It relates to a manufacturing method of a display device having a.

In the information society, the importance of display device as a visual information transmission medium is being emphasized, and in order to preoccupy an important position in the future, it is required to satisfy requirements such as low power consumption, thinness, light weight, and high quality.

As such a display device, a liquid crystal display (LCD), an organic light emitting diode (OLED), a plasma display panel (PDP), and the like have been developed and used.

A liquid crystal display device (LCD) is a display device that displays information by controlling the amount of light passing through the state change of a liquid crystal having an intermediate characteristic between a liquid and a solid and the polarization property of a polarizing plate. A color filter and a thin film transistor (TFT) : It consists of two glass substrates on which thin film transistors are formed, liquid crystal injected between them, and a backlight unit (BLU) as a light source.

In the color filter, red, green, and blue pixels, which are three primary colors of light, are coated on a glass substrate to realize a color image. In addition, the thin film transistor is a circuit in which a semiconductor film is formed on an ultra-thin glass substrate in order to control the liquid crystal.

In addition, the organic light emitting diode (OLED) uses electrons and holes injected through the anode and the cathode to the organic thin film to recombine to form an exciton, and light of a specific wavelength is generated by energy from the formed excitons. It is a self-luminous display element.

The organic light emitting diode (OLED) is an anode electrode to which positive power is applied to a screen display area, which is a part where a screen is displayed by depositing an ITO metal on a glass substrate and patterning the electrode into a desired shape through a photoresist process. And an organic material having a predetermined chromophore is deposited to form an organic electroluminescent part that emits light by the flow of electric current, and a cathode-forming metal, i.e., aluminum (Al), on the upper surface of the organic electroluminescent part It is prepared by depositing an electrode material such as magnesium (Mg) to form a cathode electrode.

However, the display device such as the liquid crystal display device and the organic light emitting diode as described above, a plurality of deposition and cleaning (cleaning), photoresist coating (PR coating) of optical / electronic structure such as color filter or ITO electrode layer on a glass substrate ), Exposure, development, etching (etching), etc. are formed repeatedly, the manufacturing process is complicated, there is a problem that it is difficult to uniformly form the height and size of the structure.

In addition, in a display device such as a liquid crystal display device or an organic light emitting diode, a large amount of light is generated while light emitted from a light source passes through a glass substrate and a polarizing plate, and finally light provided to an external user is emitted from a light source. Only a fraction of the light provided is provided.

Accordingly, attempts have been made to reduce light loss by changing the propagation angle of light passing through the substrate or the optical film by forming a microlens having a specific shape such as a hemispherical shape on the surface of the substrate of the display device or the surface of the optical film.

In the method of forming a microlens directly on the substrate surface of the display device, a stamper is placed outside the surface of the substrate to supply a resin for forming the microlens through the stamper to form a lens on the surface of the substrate, followed by ultraviolet (UV) light. Is irradiated to cure the lens.

However, when the microlens is formed on the surface of the substrate using a stamper as described above and then irradiated with ultraviolet rays, organic matters formed on the substrate of the display apparatus are deteriorated, and thus lifespan is reduced.

In addition, the microlens can be formed on the surface of the substrate of the display apparatus by attaching a microlens to the surface of the optical film and attaching it to the substrate. The total reflection occurs at the exit surface of the substrate, resulting in light loss.

As an alternative to solve this problem, a method of molding the microlens together on the surface of the substrate or the film when the injection molding of the substrate or the film has been proposed, all of these conventional methods have a very complicated and difficult manufacturing process .

The present invention is to solve the above problems, an object of the present invention is to provide an optical structure for imparting specific optical characteristics such as a micro lens, a color filter, a polarizing layer of a predetermined shape on the surface of the substrate or film of the display device, Another aspect of the present invention is to provide a method of manufacturing a display device having an optical / electronic structure that can easily form an electronic structure such as an electrode pattern or a circuit and obtain a uniform structure pattern.

Method of manufacturing a display device having an optical / electronic structure according to an embodiment of the present invention comprises the steps of forming the optical / electronic structure on the first surface of the release film is coated with a liquid or gel adhesive (S11); Attaching a first surface of the release film to a substrate or a film (S12); And separating and removing only the release film from the substrate or the film in a state in which the optical / electronic structure is attached to the substrate or the film (S13).

Here, the step S11, the first surface of the release film in a state in which the outer peripheral surface of the forming roller is formed in close contact with the outer circumferential surface of the forming roller is formed corresponding to the optical / electronic structure, to the forming roller It is characterized in that the resin is applied to the first surface of the release film through the molding groove by supplying a resin for forming an optical / electronic structure.

The step S11 is characterized in that for attaching the optical / electronic structure by spraying and curing the resin for forming the optical / electronic structure on the first surface of the release film.

In the step S11, the resin for optical / electronic structure formation is injected into the cylindrical screen having a plurality of minute holes formed at predetermined intervals at a predetermined pressure, and the resin for optical / electronic structure formation is released through the through hole of the screen. After falling down to the first surface of the cured is characterized in that the optical / electronic structure is formed on the first surface of the release film.

The manufacturing method is characterized in that the adhesive having a higher refractive index than the optical / electronic structure is previously applied to one surface of the film when the release film is attached to the film in step S12.

The refractive index of the adhesive is characterized in that 1.5 ~ 1.65.

In addition, the manufacturing method of the display device having an optical / electronic structure according to another embodiment of the present invention comprises a first step of attaching the optical / electronic structure to the first surface of the release film is coated with an adhesive; A second step of additionally applying a separate adhesive to the first surface of the release film to which the optical / electronic structure is attached; A third step of forming a base film by applying and curing a resin for imparting optical or electronic properties to the first surface of the release film; A fourth step of separating only the release film from the base film; And a fifth step of attaching the base film to a substrate or another film of the display apparatus.

Here, the optical / electronic structure is characterized in that the plurality of micro lenses made of a hemispherical dome (dome) shape to change the path of the light.

The additional adhesive additionally applied in the second step is characterized in that it has a refractive index of 1.5 ~ 1.65 higher than the micro lens.

In the present invention, since the optical / electronic structure is primarily attached to the release film and then attached to the substrate or film of the display device, the optical / electronic structure can be easily formed on the substrate or film of the display device. Optical / electronic structures of uniform shape and size can be formed, and optical / electronic structures can be attached to the display device without irradiating light such as ultraviolet rays (UV) directly to the display device. It has the effect of the invention that it can prevent.

1 is a flow chart illustrating a method of manufacturing a display device having an optical / electronic structure according to the present invention.
2 is a diagram schematically illustrating the manufacturing method of FIG.
3 is a view schematically illustrating a method of forming an optical structure on both surfaces of a light guide plate as an embodiment of a method of manufacturing a display device according to the present invention.
FIG. 4 is a view showing a modified example of FIG. 3 in which optical structures are formed on both surfaces of the light guide plate in the same direction.
5 is a view showing a method of directly forming an optical structure on a substrate exit surface of an organic light emitting diode as another embodiment of a method of manufacturing a display device according to the present invention.
6 is a view showing a modification of FIG.
7 is a view showing a method of forming a black matrix and a color filter on a release film as another embodiment of the manufacturing method of a display apparatus according to the present invention.
8 is a view showing the structure of an in-cell type liquid crystal display device in which a polarizing layer is formed inside a substrate;
9 is a sectional view showing main parts of a structure of a display device in which an optical structure is formed.
10 illustrates an embodiment of a method of manufacturing the display device of FIG. 9.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a method of manufacturing a display device having an optical / electronic structure according to the present invention.

1 is a flowchart illustrating a manufacturing method of a display device having an optical / electronic structure according to the present invention.

As shown in FIG. 1, the method of manufacturing a display device having an optical / electronic structure according to the present invention may include an adhesive layer on a first surface of a release film R to which a liquid or gel adhesive is applied ( Forming an optical / electronic structure L in step A) (S11), attaching a first surface of the release film R to a substrate S or a film (step S12), and the optical / electronic structure It is configured to include the step (S13 step) of separating and releasing only the release film (R) from the substrate (S) or the film (L) is attached to the substrate (S) or the film.

FIG. 2 is a diagram schematically illustrating the manufacturing method of FIG. 1.

As shown in Figure 2, Figures 2 (A) and (B) is a step corresponding to the step S11, first the adhesive layer made of a liquid or gel-like adhesive on the first surface of the release film (R) (A) is formed, and the optical / electronic structure (L) is formed on the upper surface of the adhesive layer (A). Thereafter, (C) of FIG. 2 corresponds to step S12, and attaches the first surface of the release film R to the substrate S or the film. In this process, the adhesive layer A applied to the lower surface of the optical / electronic structure L is discharged to the outside of the interface of the optical / electronic structure L. As a result, the adhesive layer A is cured and then the substrate S Or serves as a binder of the film and the optical / electronic structure (L). Finally, (D) and (E) of FIG. 2 correspond to step S13, and only the release film R is attached to the substrate S while the optical / electronic structure L is attached to the substrate S or the film. Or separating and releasing from the film to manufacture a display device having an optical / electronic structure.

3 is a view schematically illustrating a method of forming an optical structure on both surfaces of a light guide plate according to an embodiment of the method of manufacturing a display device according to the present invention. Hereinafter, a process of forming the micro lens L as an optical structure on both surfaces of the light guide plate 10 will be described in detail.

Referring to FIG. 3, the microlenses L may be formed on the liquid or gel adhesive coating surface of the release film R on an upper side of the light guide plate 10 installed to be horizontally moved by a conveying device (not shown) such as a conveyor system. The upper forming roller 101 is rotatably installed, and a plurality of upper press rollers 105 for pressing the adhesive coating surface of the release film R against the upper surface of the light guide plate 10 on the light guide plate 10. It is rotatably installed. On one side of the upper forming roller 101, an upper resin feeder 102 for supplying a micro lens forming resin (Resin) is disposed inside the forming groove on the outer circumferential surface of the upper forming roller 101, and the upper forming roller 101 On the other side, the first UV curing apparatus 103 for curing the resin for forming the microlens accommodated in the molding groove of the upper forming roller 101 is disposed.

In addition, a lower forming roller 111, a lower press roller 115, a lower resin feeder 112, and a second UV curing device 113 are formed in the lower portion of the light guide plate 10, as well.

In addition, the upper and lower pre-heaters 121 and 122 that apply heat to the light guide plate 10 to the rear portions of the upper and lower press rollers 101 and 111, and the light guide plate 10 that irradiate ultraviolet rays (UV). 3 UV curing devices 125 are arranged in sequence.

The process of forming the microlens L on both surfaces of the light guide plate 10 using the apparatus configured as described above will be described in detail as follows.

The release film R having a liquid or gel adhesive applied to one surface passes while being in close contact with a lower portion of the outer circumferential surface of the upper forming roller 101. At this time, the resin for forming the microlens is supplied through the upper resin feeder 102 on the upper side of the upper forming roller 101. The supplied resin was accommodated inside the hemispherical dome-shaped molding groove formed on the outer circumferential surface of the upper forming roller 101, and then cured by ultraviolet rays irradiated from the upper UV curing apparatus 103, and then the release film ( While bonding to the upper surface of the adhesive coating surface of R) is transferred to the adhesive coating surface of the release film (R).

The release film R having the microlens L attached to one surface of the upper forming roller 101 passes between the upper press roller 105 and the upper surface of the light guide plate 10. At this time, the liquid or gel adhesive applied to the bottom surface of the optical / electronic structure L is applied to the light guide plate 10 and the optical / electronic structure by the pressing effect on the light guide plate 10 of the upper press roller 105. It is discharged to the space between the interfaces of (L). In addition, the release film R passing through the upper press roller 105 is wound on a recovery roller (not shown). At this time, the adhesive coating layer of the release film R having the microlens L is formed on the light guide plate. Since it is adhered to the upper surface of the 10, only the release film R is separated and the adhesive coating layer having the microlens L is attached to the light guide plate 10.

In the same process, the adhesive coating layer having the microlens L is formed on the lower surface of the light guide plate 10 by the lower forming roller 111 and the lower press roller 115.

As described above, the light guide plate 10 having the microlenses L formed on the upper and lower surfaces thereof passes through the upper and lower preheaters 121 and 122 and the UV curing apparatus 125 disposed in the rear, and thus, of the light guide plate 10. It is firmly adhered to the surface, so that the liquid or gel adhesive acts as a binder to fix the optical / electronic structure L to the outer surface of the light guide plate 10 by the curing action.

Through this process, the light guide plate 10 having the microlens L is formed on the upper and lower surfaces thereof. Of course, in this embodiment, the microlenses L having a hemispherical dome shape are formed on both the upper and lower surfaces of the light guide plate 10, but the optical structure is formed only on one surface of the light guide plate 10, or The optical structures of different sizes and shapes, such as microlenses and prism patterns, may be formed on the upper and lower surfaces of 10), respectively.

In addition, in the above-described embodiment, the microlenses L are formed on the upper and lower surfaces of the light guide plate 10 in opposite directions. However, as shown in FIG. 4, the light guide plate ( The reverse direction of the release film R supplied to the lower surface of 10) may be reversely supplied so that the microlenses may be arranged on the upper and lower surfaces of the light guide plate 10 in the same direction. Of course, the opposite is also possible.

In addition, the optical structure may be formed on a substrate or a film of another display device in the same manner as the optical structure is formed on the light guide plate 10 shown in the above-described embodiment.

5 is a view showing a method of directly forming an optical structure on the substrate exit surface of the organic light emitting diode as another embodiment of the manufacturing method of the display device according to the present invention.

For example, as shown in FIG. 5, after forming an optical structure such as a micro lens (L) on the adhesive coating layer of the release film (R), the adhesive coating layer of the release film (R) is an organic light emitting diode The organic light emitting diode 30 in which the microlens L is formed on the emission surface may be implemented by adhering to the emission surface of the substrate 31 and then separating the release film R.

And, as shown in Figure 6, to form an optical structure such as a micro lens (L) in the adhesive coating layer of the release film (R), and then attach the micro lens (L) to the polarizing film (P) The polarizing film P to which the microlenses L are attached may be attached to the surface of the substrate 31 of the organic light emitting diode 30.

That is, after forming the micro lens (L) on one surface of the release film (R) through the lens forming roller 131, the polarizing film (P) and the release film (R) is coated with an adhesive (A) on one surface Proceed through the bonding roller 133 to bond the polarizing film (P) and the release film (R). Subsequently, when the release film R is separated from the polarizing film P, the microlens L attached to the release film R is transferred to the adhesive coating surface of the polarizing film P, and is attached to the polarizing film. (P) is supplied to the exit surface of the substrate 31 of the organic light emitting diode 30 in a state where the micro lens L is attached to one surface thereof, and is then supplied by the press roller 135 to the substrate of the organic light emitting diode 30. (31) It is firmly attached to the exit surface.

At this time, the adhesive (A) and the micro lens (L) applied to one surface of the polarizing film (P) is higher than the refractive index of the substrate 31 so that the micro lens (L) to improve the light extraction efficiency It is made of a resin having a refractive index, the adhesive (A) is preferably made of a resin material having a refractive index of 1.5 ~ 1.65 higher than the refractive index of the micro lens (L).

Of course, in this embodiment, the microlens L is formed on the polarizing film P and attached to the organic light emitting diode 30, but instead of the polarizing film P, a protective film or other optical film may be used. In addition, the present invention can be usefully applied not only to optical structures such as micro lenses, but also to forming optical structures such as color filters, or electronic structures such as ITO electrode layers in display devices.

FIG. 7 illustrates an embodiment in which a black matrix and a color filter are formed on a substrate surface of a liquid crystal display device, and the first forming roller 201 for forming the release matrix R to form the black matrix 52M. And a third molding roller 202 for forming a blue color filter 52B, a third molding roller 203 for forming a green color filter 52G, and a red ( Black matrix (52M), blue color filter, green color filter on the adhesive coating layer of the release film (R) by continuously passing through the fourth forming roller 204 for forming a red series color filter (52R) Red color filters are formed sequentially.

On the outer circumferential surface of the first to fourth forming rollers 201 to 204, molding grooves corresponding to the black matrix and the color filter pattern to be formed are formed, respectively. Resin is supplied and adhered to the adhesive coating layer of the release film (R).

As such, when the release film R passes through the first to fourth forming rollers 201 to 204 in sequence, black matrices 52M and color filters 52B, 52G, and 52R are formed on the adhesive coating surface of the release film R. In the same manner as in the above-described embodiments, the release film R is adhered to the substrate (not shown) surface of the liquid crystal display device, and then the release film R is separated, and the black matrix is simply added to the substrate surface of the liquid crystal display device. 52M and color filters 52B, 52G, 52R are formed.

8 shows the structure of an in-cell type liquid crystal display device in which the in-cell polarization layer 53 is formed inside the substrate 51. The black matrix 52M and the color filter of the in-cell type liquid crystal display device are shown in FIG. (52), the in-cell polarization layer 53 can also be made by the same process as shown in FIG.

Alternatively, the black matrix 52M and the color filter 52 are formed on one release film R, and an in-cell polarization layer 53 is formed on the other release film R, and then the two release films ( R) are bonded to each other while passing through one press roller to integrally bond the in-cell polarization layer 53 to the black matrix 52M and the color filter 52, and then separate one of the release films R. In this manner, the black matrix 52M, the color filter 52, and the in-cell polarization layer 53 may be integrally formed on one release film R. Reference numeral 54 corresponds to the ITO layer.

9 and 10 show a display device in which a plurality of microlenses L and an ITO layer 71 are formed on a surface of a substrate 70, respectively, and a configuration of an apparatus for manufacturing the display device. The step of molding the micro lens (L) on the adhesive coating layer of the release film (R), and the separate adhesive for attaching ITO to the adhesive coating layer of the release film (R) formed with the micro lens (L) 72 ) Is further applied, forming an ITO layer 71 on the surface of the release film (R) to which the adhesive 72 is applied, and the release film (R) -microlens (L) and adhesive layer Separation of the release film (R) from the bonding body consisting of -ITO layer 71 and the step of bonding the film consisting of the micro lens (L) and the adhesive layer 72 and the ITO layer 71 to the substrate (3) do.

A process of manufacturing the display device in which the microlens L and the ITO layer 71 are formed will be described in more detail with reference to FIG. 10 as follows.

First, in a state in which the release film R is in close contact with the lower outer peripheral surface of the lens forming roller 301 in which a molding groove having a shape corresponding to the microlens L is formed on the outer peripheral surface thereof, the lens forming roller 301 Supply resin for microlens formation. At this time, the resin supplied to the lens forming roller 301 is inserted into the respective forming grooves while passing through the scribing roller 303, and then cured by the UV curing apparatus 304, and then the lens forming roller. At the lower side of 301, the adhesive is applied to the adhesive coating layer of the release film (R). At this time, the plurality of press rollers 302 press the release film (R) against the lens forming roller 301 at the lower side of the lens forming roller 301, so that the micro lenses (L) are sufficient for the release film (R). It is preferred to adhere with pressure.

Subsequently, the release film R to which the microlens L is attached passes through the lower surface of the adhesive coating roller 305. At this time, the adhesive 72 is supplied from the upper portion of the adhesive coating roller 305, the supplied adhesive 72 is applied to the outer peripheral surface of the adhesive coating roller 305 and then transferred to the release film (R) and attached. At this time, the plurality of press rollers 306 at the lower side of the adhesive coating roller 305 to press the release film (R) against the adhesive coating roller 305 and to apply heat to a heating device (not shown) to the adhesive Preferably, 72 is firmly attached to the surface of the release film (R).

Then, the release film (R) to which the adhesive is applied as described above is in close contact with the lower surface of the ITO coating roller 307, at which time ITO resin is supplied from the upper side of the ITO coating roller 307, the adhesive ( The ITO layer 71 is apply | coated to the surface of the release film R to which 72 is apply | coated. Of course, at this time, the plurality of press rollers 308 pressurizes the release film R against the ITO coating roller 307 at the lower side of the ITO coating roller 307 and irradiates ultraviolet rays with the UV curing device 309. Cures the ITO resin.

When the microlens L, the adhesive 72, and the ITO layer 71 are sequentially formed on the release film R as described above, the release film R is separated to form the microlens L-adhesive 72-ITO layer. When the film (hereinafter referred to as ITO film) made of 71 is released and the ITO film is pressed onto the substrate 3 surface of the display device, the ITO film is firmly adhered to the substrate 3 surface by the adhesive 72. Is attached.

Also in this embodiment, the adhesive 72 is preferably made of a resin material having a refractive index of 1.5 ~ 1.65 higher than the refractive index of the micro lens (L) in order to increase the light extraction efficiency.

Meanwhile, in the above-described embodiments, the optical / electronic structure of a specific shape is formed on the surface of the release film R while the release film R passes through the forming roller, but in addition, the resin is a liquid on one surface of the release film. Spray) and then harden to form an optical / electronic structure such as a micro lens, or inject a resin for forming the optical / electronic structure at a predetermined pressure into a cylindrical screen having a plurality of minute holes formed at regular intervals, Silk printing method for forming an optical / electronic structure on the release film using the resin discharged through the through hole may be used.

In addition to the embodiments described above, the present invention can be applied not only to manufacturing a substrate or film for any display device having a predetermined optical pattern or electrical pattern on the surface, but also a circuit and / or a connection pad or the like are formed as an electronic structure. It may be applied to manufacturing a flexible printed circuit board (FPCB) and the like.

A: adhesive layer L: optical / electronic structure (microlens)
R: Release film S: Substrate
P: polarizing film 10: light guide plate
30: organic light emitting diode 31, 70: substrate
50: liquid crystal display device 52M: black metrics
52B: Blue Color Filter 52G: Green Color Filter
52R: Red color filter 71: ITO layer
72: adhesive 101: upper forming roller
102: upper resin feeder 103: first UV curing device
105: upper press roller 111: lower forming roller
112: lower resin feeder 113: second UV curing device
115: lower press roller 121: upper preheater
122: lower preheater 125: third UV curing device
133: cemented roller 135: press roller
201: first molding roller 202: second molding roller
203: third molding roller 204: fourth molding roller
301: lens forming roller 302, 306, 308: press roller
303: scribing roller 304, 309: UV curing device
305: adhesive coating roller

Claims (9)

Forming an optical / electronic structure on the first surface of the release film to which the liquid or gel adhesive is applied (S11);
Attaching a first surface of the release film to a substrate or a film (S12); And
Separating and removing only the release film from the substrate or the film while the optical / electronic structure is attached to the substrate or the film (S13);
Method of manufacturing a display device having an optical / electronic structure comprising a. The method of claim 1, wherein the step S11, in which the first surface of the release film is in contact with the outer circumferential surface of the forming roller is formed on the outer circumferential surface formed with a shape corresponding to the optical / electronic structure, And supplying a resin for forming an optical / electronic structure to the forming roller so that the resin is applied to the first surface of the release film through the forming groove. The display apparatus of claim 1, wherein the step S11 includes attaching the optical / electronic structure to the first surface of the release film by spraying and curing the resin for forming the optical / electronic structure. Manufacturing method. The optical / electronic structure of claim 1, wherein the step S11 is performed by injecting a resin for forming an optical / electronic structure at a predetermined pressure into a cylindrical screen in which a plurality of minute holes are formed at predetermined intervals. Forming resin is dropped to the first surface of the release film and then cured to form an optical / electronic structure on the first surface of the release film manufacturing method of a display device having an optical / electronic structure. According to claim 1, The manufacturing method is optical / electronic, characterized in that the adhesive having a higher refractive index than the optical / electronic structure on one side of the film when the release film is attached to the film in the step S12 Method of manufacturing a display device having a structure. The method of claim 5, wherein the adhesive has a refractive index of about 1.5 to about 1.65. A first step of attaching the optical / electronic structure to the first surface of the release film to which the adhesive is applied;
A second step of additionally applying a separate adhesive to the first surface of the release film to which the optical / electronic structure is attached;
A third step of forming a base film by applying and curing a resin for imparting optical or electronic properties to the first surface of the release film;
A fourth step of separating only the release film from the base film; And
Attaching the base film to a substrate or another film of the display device;
Method of manufacturing a display device having an optical / electronic structure comprising a. 8. The optical / electronic structure according to any one of claims 1 to 7, wherein the optical / electronic structure is a plurality of micro lenses formed in a hemispherical dome shape to change a path of propagation of light. Method of manufacturing a display device having a. The method of claim 7, wherein the additional adhesive applied in the second step has a refractive index of 1.5 ~ 1.65 higher than the micro lens.

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