KR20100037334A - Method for manufacturing display device having optical/electronic structures - Google Patents

Method for manufacturing display device having optical/electronic structures Download PDF

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Publication number
KR20100037334A
KR20100037334A KR1020080096604A KR20080096604A KR20100037334A KR 20100037334 A KR20100037334 A KR 20100037334A KR 1020080096604 A KR1020080096604 A KR 1020080096604A KR 20080096604 A KR20080096604 A KR 20080096604A KR 20100037334 A KR20100037334 A KR 20100037334A
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KR
South Korea
Prior art keywords
optical
film
release film
electronic structure
forming
Prior art date
Application number
KR1020080096604A
Other languages
Korean (ko)
Inventor
황장환
Original Assignee
주식회사 파인텍
황장환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 파인텍, 황장환 filed Critical 주식회사 파인텍
Priority to KR1020080096604A priority Critical patent/KR20100037334A/en
Priority to PCT/KR2009/005614 priority patent/WO2010038988A2/en
Priority to JP2011529996A priority patent/JP2012504782A/en
Priority to US13/060,142 priority patent/US20110146889A1/en
Publication of KR20100037334A publication Critical patent/KR20100037334A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Abstract

PURPOSE: A method for manufacturing a display device having optical / electronic structure is provided to easily form the optical / electronic structure with a desired shape on a substrate or a film by attaching the optical / electronic structures to the substrate or the film of the display device after attaching the optical / electronic structures to a release film. CONSTITUTION: An optical / electronic structure(L) is formed on an adhesive layer(A) of a first side of a release film(R). An adhesive is spread on the first side of the release film. The adhesive of the first side of the release film is attached to a substrate(S) or a film. Only release film is separated from the substrate or the film while the optical / electronic structure is attached to the substrate or the film. A resin is spread on the first side through a molding groove of a molding roller.

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. Forming an optical structure for imparting specific optical properties such as, or forming an electronic structure such as an electrode pattern or a circuit on a substrate or film surface, facilitates the manufacturing process and manufactures a display device that can obtain a uniform structure pattern It is about a method.

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.

Liquid crystal display devices (LCDs), organic light emitting diodes (OLEDs), plasma display devices (PDPs), and the like have been developed and used as such display devices.

Liquid crystal display (LCD) is a display device that displays information by controlling the amount of light passing through the state change of the liquid crystal (liquid crystal) having a liquid and solid intermediate characteristics and the polarization property of the polarizing plate. It consists of two glass substrates on which a TFT is formed, a liquid crystal injected between them, and a backlight unit (BLU) which is 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 TFT is a circuit in which a semiconductor film is formed on an ultra-thin glass substrate to control liquid crystal, which serves to control one pixel, which is a basic unit of an image.

In the organic light emitting diode (OLED), electrons and holes injected through an anode and a cathode recombine to an organic thin film to form an exciton, and light having a specific wavelength is generated by energy from the excitons. It is a self-luminous display device using the phenomenon that occurs.

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 made through the process of forming a cathode electrode by depositing an electrode material such as magnesium (Mg).

However, the display device such as a liquid crystal display device and an organic light emitting diode as described above, a plurality of deposition, cleaning and photoresist coating (PR) of optical / electronic structures such as color filters or ITO electrode layers on a glass substrate Since coating, exposure, development, etching, etc. are repeatedly formed, the manufacturing process is complicated and 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 the microlens to the surface of the optical film and attaching the microlens 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.

According to an aspect of the present invention for achieving the above object, a first step of forming an optical / electronic structure on the first surface of the release film to which the adhesive is applied; Attaching a first surface of the release film to a substrate or a film; Provided is a method of manufacturing a display device having an optical / electronic structure comprising a third step of 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.

According to another aspect of the invention, the first step of attaching the optical / electronic structure to the first surface of the adhesive film is applied; A second step of applying an adhesive to a 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; Provided is a method of manufacturing a display device having an optical / electronic structure comprising a fifth step of attaching the base film to a substrate or another film of the display device.

According to the present invention, since the optical / electronic structure is primarily attached to the release film and then transferred to and attached to the substrate or film of the display device, it is very easy to form the optical / electronic structure of the desired shape on the substrate or film of the display device. And optical / electronic structures of uniform shape and size.

In addition, since the optical / electronic structure can be attached to the display device without directly irradiating a light such as ultraviolet (UV) light to the display device, there is an advantage that can prevent the deterioration of the device of the display device.

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 and 2 are views illustrating a first embodiment of a method of manufacturing a display device according to the present invention. The method of manufacturing a display device according to this embodiment includes a release film R to which an adhesive is applied. The first step (S11) of forming the optical / electronic structure (2) on the adhesive layer (A) of the first surface of the substrate 3 and the adhesive layer (A) of the first surface of the release film (R) Alternatively, only the release film R is separated from the substrate 3 or the film by the second step S12 of attaching to the film, and the optical / electronic structure 2 is attached to the substrate 3 or the film. It consists of a third step (S13).

2 (A) and (B) of FIG. 2 show the step S11, FIG. 2C shows the step S12, and FIGS. 2D and 2E schematically show the step S13. .

FIG. 3 illustrates a process of forming the microlens L, which is an optical structure, on both surfaces of the light guide plate 10 according to the manufacturing method of the first embodiment described above in more detail.

Referring to FIG. 3, an upper forming roller for forming a microlens L on an adhesive coating surface of a release film R on an upper side of a light guide plate 10 installed to be horizontally moved by a conveying device (not shown) such as a conveyor system. 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 upper side of the light guide plate 10. It is installed. On one side of the upper forming roller 101, a resin feeder 102 for supplying a micro lens forming resin (resin) is disposed inside the forming groove of the outer peripheral surface of the upper forming roller 101, the other of the upper forming roller 101 On one side is a UV curing apparatus 103 for curing the resin for forming the micro lens accommodated in the forming groove of the upper forming roller 101.

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

Although not shown in the drawings, each of the upper and lower portions of the movement path of the light guide plate 10 is provided with a supply roller on which a release film R to be supplied to the upper forming roller 101 and the lower forming roller 111 is wound, respectively; A recovery roller for recovering the release film R separated by passing through the light guide plate 10 is installed.

In addition, the upper and lower preheaters 121 and 122 that heat the light guide plate 10 toward the rear parts of the upper and lower press rollers 101 and 111 and the light guide plate 10 irradiate ultraviolet (UV) light. UV curing apparatus 125 is 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 released from the supply roller (not shown) passes while being in close contact with the lower outer peripheral surface of the upper forming roller 101. At this time, the resin for forming the microlenses is supplied through the 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 UV curing apparatus 103, and then the adhesive of the release film R at the lower side. While adhering to the application surface, it is transferred to the adhesive application 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 release film R is pressed by the upper press roller 105 so that the adhesive coating layer of the release film R is adhered to the upper surface of the light guide plate 10.

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. Sticks firmly to cotton.

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 2 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.

For example, as shown in FIG. 5, an optical structure such as a micro lens L is formed on the adhesive coating layer of the release film R, and then the adhesive coating layer of the release film R is formed on the 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) on 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 molding roller 131, the adhesive film is applied to the polarizing film (P) and the release film (R) on one surface of the bonding roller Proceed through the (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 to forming not only optical structures such as micro lenses, but also 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 second 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, and green color filter are applied to the adhesive coating layer of the release film R by continuously passing the second molding roller 204 for forming the 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. 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 3. 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 is the ITO layer.

9 and 10 illustrate a display device 70 in which a plurality of micro lenses L and an ITO layer 71 are formed on a surface of a substrate 3, respectively, and a configuration of an apparatus for manufacturing the display device 70. In the display device of this embodiment, forming the microlens L on the adhesive coating layer of the release film R, and attaching ITO to the adhesive coating layer of the release film R on which the microlens L is formed. Additionally applying a separate adhesive 72 for forming, 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-micro lens (L) and the release film (R) in the bonding body consisting of the adhesive layer-ITO layer 71, and the film consisting of the micro lens (L) and the adhesive layer 72 and the ITO layer 71 on the substrate (3) It is prepared through the step of bonding.

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. 8 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 (see Fig. 7) 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 after the release film (R) Moved 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 It is preferable that 72 (see FIG. 7) be 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 a UV curing device to obtain ITO resin. Harden.

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.

On the other hand, in the above embodiments, while the release film (R) passes through the forming roller, a specific type of optical / electronic structure is formed on the surface of the release film (R), but in addition to the resin (resin) in one surface of the release film (resin) 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.

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.

Explanation of symbols on the main parts of the drawings

R: Release film L: Optical structure (micro lens)

S: Substrate P: Polarizing Film

10: light guide plate 30: organic light emitting diode

50 liquid crystal display device

Claims (9)

A first step of forming an optical / electronic structure on the first surface of the release film to which the adhesive is applied; Attaching a first surface of the release film to a substrate or a film; 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. According to claim 1, wherein the first step, the first surface of the release film is in contact with the outer circumferential surface of the forming roller formed with a forming groove corresponding to the optical / electronic structure formed on the outer circumferential surface 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 first step comprises 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. Manufacturing method. The method of claim 1, wherein the first step comprises 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 a predetermined interval. 10. A method of manufacturing a display device having an optical / electronic structure, wherein the resin for forming an electronic structure 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. The optical / electronic structure according to claim 1, wherein when the release film is attached to the film in the second step, an adhesive having a refractive index higher than that of the optical / electronic structure is previously applied to one surface of the film. Method of manufacturing a display device. The method of manufacturing a display device having an optical / electronic structure according to claim 5, wherein the refractive index of the adhesive is 1.5 to 1.65. 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; A method of manufacturing a display device having an optical / electronic structure having an optical / electronic structure comprising a fifth step of attaching the base film to a substrate or another film of the display device. The display according to any one of claims 1 to 7, wherein the optical / electronic structure is a plurality of micro lenses that have a hemispherical dome shape or a polygonal irregularity shape to change a light propagation path. Method of manufacturing the device. The display device of claim 8, wherein the additional adhesive applied in the second step has a refractive index of 1.5 to 1.65 higher than that of the micro lens. Manufacturing method.
KR1020080096604A 2008-10-01 2008-10-01 Method for manufacturing display device having optical/electronic structures KR20100037334A (en)

Priority Applications (4)

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KR1020080096604A KR20100037334A (en) 2008-10-01 2008-10-01 Method for manufacturing display device having optical/electronic structures
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101314400B1 (en) * 2012-05-10 2013-10-04 순천향대학교 산학협력단 Method for manufacturing organic light diodes for surface illumination
WO2015174720A1 (en) * 2014-05-14 2015-11-19 황장환 Optical pattern member and manufacturing method therefor
KR20180001239A (en) * 2016-06-27 2018-01-04 주식회사 케이에이피에스 Optical sheet and method of manufacturing the same
KR20180023861A (en) * 2016-08-26 2018-03-07 황장환 Optical substrate element for a flexible display
KR20180036671A (en) * 2018-03-28 2018-04-09 황장환 Optical pattern member and method of manufacturing the same
KR20180109822A (en) * 2018-10-01 2018-10-08 황장환 Optical pattern member and method of manufacturing the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101314400B1 (en) * 2012-05-10 2013-10-04 순천향대학교 산학협력단 Method for manufacturing organic light diodes for surface illumination
WO2015174720A1 (en) * 2014-05-14 2015-11-19 황장환 Optical pattern member and manufacturing method therefor
KR20180001239A (en) * 2016-06-27 2018-01-04 주식회사 케이에이피에스 Optical sheet and method of manufacturing the same
KR101868522B1 (en) * 2016-06-27 2018-07-19 주식회사 케이에이피에스 Optical sheet and method of manufacturing the same
KR20180023861A (en) * 2016-08-26 2018-03-07 황장환 Optical substrate element for a flexible display
KR20180036671A (en) * 2018-03-28 2018-04-09 황장환 Optical pattern member and method of manufacturing the same
KR20180109822A (en) * 2018-10-01 2018-10-08 황장환 Optical pattern member and method of manufacturing the same

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