KR20150142861A - Polarizer film and method of manufacturing the same and method of manufactruing a organic light emitting display panel using the same - Google Patents

Abstract

The present invention relates to a manufacturing method of a touch electrode formed within the polarizing film constituting a display panel and a manufacturing method of an organic light emitting display panel by using the same. The manufacturing method of an organic light emitting display panel includes: a step for forming a panel comprising pixels which include an organic light emitting diode and a transistor driving the organic light emitting diode; a step for forming the polarizing film including a first functional film having a first touch electrode and a second functional film having a second touch electrode; a step for bonding the panel and the polarizing film; and a step for forming a cover plate for protecting the panel and the polarizing film.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polarizing film and a method of manufacturing the same, and a method of manufacturing an organic light-

The present invention relates to a polarizing film, and more particularly, to a polarizing film having a touch electrode formed therein, a method of manufacturing the polarizing film, and a method of manufacturing the organic light emitting display panel using the polarizing film.

Background of the Invention As the age of the information society develops, the importance of flat panel display devices (FPDs) having excellent characteristics such as thinning, lightening, and low power consumption is increasing. Examples of the flat panel display include a liquid crystal display (LCD), a plasma display panel (PDP), and an organic light emitting display (OLED). Recently, Electrophoretic display devices (EPD) are also widely used.

Among them, liquid crystal display devices and organic light emitting display devices including thin film transistors are excellent in resolution, color display, image quality, and are widely commercialized as display devices for televisions, notebooks, tablet computers, or desktop computers.

Particularly, the organic light emitting diode (OLED) is a self-luminous element having low power consumption, high response speed, high luminous display rate, high luminance and wide viewing angle, and has been attracting attention as a next generation flat panel display.

2. Description of the Related Art Recently, as an input device of an organic light emitting diode display device as described above, a touch panel capable of directly inputting information by using a finger or a pen has been used.

The method of manufacturing the organic light emitting display device having the touch panel includes an add-on type in which a panel for outputting an image and a touch panel for detecting touch are separately manufactured and then joined together, And an in-cell type built in an output panel.

FIG. 1 is a cross-sectional view schematically showing a cross section of an organic light emitting display panel including a conventional add-on type touch panel.

As shown in FIG. 1, the conventional organic light emitting display panel having an add-on type touch panel includes a panel 10 having pixels formed of an organic light emitting diode and a transistor for driving the organic light emitting diode, A polarizing film 20 attached on the panel 10, a touch panel 30 attached on the polarizing film 20, and a cover substrate 40 attached on the touch panel 30.

The panel 10 includes a lower substrate 11 on which pixels constituted by transistors for driving the organic light emitting diode are formed and an upper substrate 12 for sealing the lower substrate 11.

The polarizing film 20 is composed of functional films 21 and 22 and a polarizing film 23 provided to retard the phase of the light emitted from the organic light emitting diode and to prevent reflection of light incident from the outside do.

The touch panel 30 is provided with touch electrodes 31 and 32 for supplying a touch driving signal and receiving a touch sensing signal.

In the organic light emitting display panel having the conventional add-on type touch panel as described above, since a separate touch panel is attached on the polarizing film, the thickness of the organic light emitting display panel can be increased.

In addition, in the conventional add-on type organic light emitting display panel, since a separate touch panel is attached on the polarizing film, there is a limit in minimizing the weight of the organic light emitting display panel. In addition, the manufacturing process can be increased, and thus, the process cost can be increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a polarizing film, a method of manufacturing the polarizing film, and a method of manufacturing the polarizing film including the first functional film having the first touch electrode and the second functional film having the second touch electrode. And a method for manufacturing the organic light emitting display panel.

In order to achieve the above object, a polarizing film according to the present invention includes a first functional film on which a first touch electrode is formed, a second functional film on which a second touch electrode is formed, a first functional film, A first adhesive material for adhering the film, and a polarizing film formed on the second functional film.

The method for manufacturing a polarizing film according to the present invention includes the steps of forming a first functional film having a first touch electrode formed thereon and a second functional film having a second touch electrode formed thereon, And a second functional film, and bonding the polarizing film on the second functional film.

A method of manufacturing an organic light emitting display panel according to the present invention includes the steps of: forming a panel including pixels including an organic light emitting diode and a transistor for driving the organic light emitting diode; Forming a polarizing film including a second functional film including a functional film on which a second touch electrode is formed; attaching the panel and the polarizing film; and attaching a cover for protecting the panel and the polarizing film And forming a plate.

According to the present invention, since the touch electrodes are formed on the functional films constituting the polarizing film, the thickness and weight of the organic light emitting display panel can be reduced.

In addition, the manufacturing process of the organic light emitting display panel can be reduced, and the manufacturing cost can be reduced accordingly.

Further, as the thickness of the polarizing film is reduced, the transmittance of the organic light emitting display panel can be improved.

1 is a cross-sectional view schematically showing a cross section of an organic light emitting display panel having a conventional add-on type touch panel.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an organic light emitting display.
3 is a cross-sectional view schematically showing a cross section of an organic light emitting display panel including a polarizing film according to the present invention.
FIGS. 4A to 4G are process flow diagrams illustrating a method of manufacturing a polarizing film according to the present invention and a method of manufacturing an organic light emitting display panel using the same.
Fig. 5 is an exemplary diagram for explaining another configuration of Fig. 4B. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view schematically showing the configuration of an organic light emitting display device to which a polarizing film according to the present invention is applied, and FIG. 3 is a cross-sectional view schematically showing a cross section of an organic light emitting display panel including a polarizing film according to the present invention .

As shown in FIGS. 2 and 3, the organic light emitting display device to which the polarizing film according to the present invention is applied includes a panel 100 having pixels composed of organic light emitting diodes and transistors for driving the organic light emitting diodes, A first functional film 531 having a first touch electrode 511 formed on a lower surface thereof and a second functional film 532 having a second touch electrode 512 formed on a lower surface thereof, A cover plate 700 for protecting the panel 100 and the polarizing film 500 and a plurality of gate lines GL1 to GLg formed on the panel 100. [ A panel driver 200, 300, 400 for supplying data voltages to the data lines DL1 to DLd formed on the panel 100, and a plurality of first touches A touch driving signal is sequentially applied to the electrode 511 or the second touch electrode 512 And includes the second touch electrode 512 or the first touch electrode 511 of the touch sensing unit 600 determines whether a touch using the touch sensing signal that is received from.

First, in the panel 100, subpixels are formed in each region where a plurality of gate lines GL1 to GLg cross data lines DL1 to DLd.

Each sub-pixel includes an organic light emitting diode for outputting light and a driving unit for driving the organic light emitting diode.

First, the organic light emitting diode has an anode, an organic light emitting layer, and a cathode formed on a lower substrate 110. Each of the subpixels is divided by a bank, The anode outputs light by a current transmitted by the driving transistor Tdr and an upper substrate 120 for protecting the organic light emitting diode formed on the lower substrate 110 is formed at an upper end of the cathode .

Second, the driving unit may include at least two transistors and a storage capacitor connected to the data lines DL1 to DLd and the gate lines GL1 to GLg to control driving of the organic light emitting diode Lt; / RTI >

The anode of the organic light emitting diode is connected to the first power source, and the cathode is connected to the second power source. The organic light emitting diode outputs light having a predetermined luminance corresponding to the current supplied from the driving transistor.

The driving unit controls the amount of current supplied to the organic light emitting diodes according to a data voltage supplied to the data lines GL1 to GLg when a scan pulse is supplied to the gate lines GL1 to GLg.

To this end, the driving transistor is connected between the first power source and the organic light emitting diode, and the switching transistor is connected between the driving transistor, the data line and the gate line.

2 and 3, the polarizing film 500 includes a first functional film 531 having a first touch electrode 511 formed on a lower surface thereof, a second functional film 531 having a second touch electrode 511 formed on a lower surface thereof, A first adhesive material 551 for adhering the first functional film and the second functional film and a second adhesive material 551 for forming a polarizing film 532 formed on the second functional film 532, (560). In the following description, it is assumed that the first touch electrode 511 and the second touch electrode 512 are formed on the lower surface of the first functional film 531 and the second functional film 532 However, the present invention is not limited thereto. That is, the first touch electrode 511 and the second touch electrode 512 may be formed on the upper surface of the first functional film 531 and the second functional film 532.

First, the polarizing film 500 in the organic light emitting display panel is a circular polarizing film for preventing the light incident on the panel 100 from being reflected from the outside and being emitted to the outside again. Respectively.

Accordingly, the polarizing film 500 is composed of the polarizing film 560 and the functional films 531 and 532 including the? / 4 retardation film.

The polarizing film 560 functions to change unpolarized light into linearly polarized light. That is, it transmits a light that vibrates in one direction of the incident light and a polarizing function that absorbs light that vibrates in the other direction.

In order to perform the polarizing function, the polarizing film 560 includes a polarizer 562, a first protective film 561 attached to the lower portion of the polarizing element 562, a polarizing element 562, And a hard coat layer 564 formed on the surface of the second protective film 563. The second protective film 563 is formed on the upper surface of the second protective film 563,

The polarizing element 562 may be formed of PVA (Poly Vinyl Alcohol).

The first protective film 561 and the second protective film 563 may be formed of TAC (tri-acetate cellulose) or acrylic, which is an optically isotropic film.

The hard coating layer 564 may be formed of a material having characteristics such as scattering, hardness enhancement, anti-reflection, and low reflection.

The functional films 531 and 532 including the? / 4 phase retardation film are provided to prevent light incident from the outside to the inside of the panel from being internally reflected and then emitted to the outside.

Any one of the first functional film 531 and the second functional film 531 may be a? / 4 retardation film.

When one of the first functional film 531 and the second functional film 531 is a? / 4 phase retardation film, the other is a zero phase retardation film Or a lambda / 2 phase retardation film.

For example, when the first functional film 531 is a? / 4 phase retardation film, the second functional film 531 may have a zero phase retardation Film or a? / 2 phase-retarding film.

 In this case, the second functional film 532 may be one of functional films capable of exhibiting optimum effects such as birefringence, dichroism, reflection, and brightness enhancement.

If the second functional film 532 is a? / 4 phase retardation film, the first functional film 531 may be a zero phase retardation film for compensating the second functional film 532, / 2 phase retardation film.

In this case, the first functional film 531 may be one of functional films capable of exhibiting optimum effects such as birefringence, dichroism, reflection, and brightness enhancement.

The first touch electrode 511 is formed on the lower surface of the first functional film 531 along the first direction of the panel 100 and the second touch electrode 512 is formed on the lower surface of the first functional film 531, Is formed on the lower surface of the second functional film 532 along the second direction.

The first touch electrode 511 is insulated from the first functional film 531 and the first adhesive material 551 so that the first touch electrode 511 is not electrically connected to the second touch electrode 512.

In addition, a blackening layer may be formed under the first touch electrode 511 and the second touch electrode 512. The blackening layer functions to prevent light incident from the outside to the display panel from being reflected to the first touch electrode 511 and the second touch electrode 512 and then emitted to the outside. The blackening layer will be described in detail below with reference to Fig.

In the polarizing film 500 having the touch electrode as described above, whether or not the touch is recognized using the change amount of capacitance formed between the first touch electrode 511 and the second touch electrode 512 .

When the first touch electrode 511 formed in the first direction of the panel 100 functions as a driving electrode, the second touch electrode 512 formed in the second direction of the panel 100 functions as a receiving electrode . In addition, when the first touch electrode 511 functions as a receiving electrode, the second touch electrode 512 functions as a driving electrode.

That is, when the first touch electrode 511 functions as a driving electrode, a touch driving signal for touch detection is sequentially supplied to the first touch electrode 511.

At this time, if a user touches a specific area of the organic light emitting display panel including the polarizing film 500 having the first touch electrode 511 and the second touch electrode 512 embedded therein with a finger or a pen, 2 touch electrode 512 receives a touch sensing signal.

The presence or absence of the touch and the touch position on the organic light emitting display panel are determined using the sensing signals received from the second touch electrodes 512. [ The function of supplying the touch driving signal and the function of determining whether or not the touch is performed are executed in the touch sensing unit 600.

The polarizing film 500 may be attached to the panel 100 with an adhesive material such as UV Resin, OCR (Optically Clear Resin), or OCA (Optically Clear Adhesive).

Next, the timing controller 400 uses a vertical synchronization signal, a horizontal synchronization signal, and a clock supplied from an external system (not shown) to generate a gate control signal GCS for controlling the gate driver 200, And outputs a data control signal (DCS) for controlling the control circuit 300.

The timing controller 400 samples the input image data input from the external system, rearranges the input image data, and supplies the rearranged digital image data to the data driver 300.

That is, the timing controller 400 rearranges the input image data supplied from the external system to transmit the rearranged digital image data to the data driver 300, and supplies the clock supplied from the external system, A gate control signal GCS for controlling the gate driver 200 and a data enable signal for controlling the data driver 300 and the data driver 300, respectively, using a clock signal, a vertical synchronization signal (the clock and the signals are simply referred to as a timing signal) And transmits the data control signal DCS to the gate driver 200 and the data driver 300.

In particular, in order to achieve the above-mentioned object, the timing controller 400 includes a receiver for receiving the input image data and various signals as described above from the external system, An image data processor for rearranging the image data according to the panel to generate the rearranged digital image data, a controller for controlling the gate driver 200 and the data driver 300 using signals received from the receiver A control signal generation unit for generating the gate control signal GCS and the data control signals DCS and a control signal generation unit for generating the control signal based on the image data and the control signals generated by the data driving unit 300 or the gate driving unit And a transmitting unit for outputting the data to the mobile station 200.

Next, the data driver 300 converts the image data input from the timing controller 400 into analog data voltages, and supplies the analog data voltages to the gate lines GL1 to GLg every 1 horizontal period And supplies data voltages of the horizontal lines to the data lines DL1 to DLd. That is, the data driver 300 converts the image data into data voltages using gamma voltages supplied from a gamma voltage generator (not shown), and outputs the data voltages to the data lines DL1 to DLd.

That is, the data driver 300 generates a sampling signal by shifting a source start pulse (SSP) from the timing controller 400 according to a source shift clock (SSC). The data driver 300 latches the image data input according to the source shift clock SSC according to a sampling signal, changes the data to a data voltage, and outputs the source output enable (SOE) And supplies the data voltage to the data lines DL1 to DLd in units of horizontal lines in response to a signal.

For this, the data driver 300 may include a shift register unit, a latch unit, a digital-analog converter, and an output buffer.

The shift register unit outputs a sampling signal using the data control signals received from the timing controller 400.

The latch unit latches the digital image data sequentially received from the timing controller 400, and simultaneously outputs the digital image data to the digital-analog converter.

The digital-analog converter converts the image data transferred from the latch unit into a data voltage and outputs the data voltage. That is, the digital-analog converter converts the image data into the data voltage using the gamma voltage supplied from the gamma voltage generator (not shown), and outputs the data voltage to the data lines DL1 to DLd.

The output buffer outputs the data voltage transmitted from the digital-analog converter to the data lines DL1 to DLd of the panel according to a source output enable signal SOE transmitted from the timing controller 400 Output.

The gate driver 200 sequentially supplies scan pulses to the gate lines GL1 to GLg of the panel 100 in response to the gate control signal input from the timing controller 400. [ Accordingly, the switching transistors formed in the respective subpixels of the corresponding horizontal line to which the scan pulse is input are turned on, so that an image can be output to each subpixel.

That is, the gate driver 200 shifts a gate start pulse (GSP) transmitted from the timing controller 400 according to a gate shift clock (GSC) On voltage to scan lines GL1 to GLg. The gate driver 200 supplies a gate-off voltage to the gate lines GL1 to GLg during the remaining period during which the scan pulse is not supplied.

The gate driver 200 may be formed independently from the panel 100 and may be electrically connected to the panel 100 in various ways, (Gate In Panel: GIP) method. In this case, the gate control signal for controlling the gate driver 200 may be a start signal VST and a gate clock GCLK.

Although the data driver 300, the gate driver 200 and the timing controller 400 are independently configured in the above description, the data driver 300 or the gate driver 200 Either one of them may be integrally formed in the timing controller 400. Hereinafter, the gate driver 200, the data driver 300, and the timing controller 400 are collectively referred to as a panel driver.

Finally, the touch sensing unit 600 sequentially supplies the touch driving signal to the first touch electrodes 511, and outputs the touch sensing signals to the second touch electrodes 512 using the sensing signals received from the second touch electrodes 512. [ And performs a function of detecting whether or not the touch panel is in touch with the polarizing film 500 provided with the touch electrode. That is, when a touch driving signal for touch detection is sequentially supplied to the first touch electrodes 511, when a user touches a specific area of the organic light emitting display panel with a finger or a pen, The electrostatic capacitance between the second touch electrode 511 and the second touch electrodes 512 is changed and the change of the electrostatic capacitance is caused by the magnitude of the sensing signal transmitted from the second touch electrode 512 to the touch sensing unit 600 .

The second touch electrodes 512 are connected to the touch sensing unit 600 through the receiving electrode lines RL1 to RLs and the first touch electrodes 511 are connected to the driving electrode lines TL1 to TLk, And the touch sensing unit 600 is connected to the touch sensing unit 600 through the touch sensing unit 600 using sensing signals received from the second touch sensing electrodes 512, And determines the touch position and the touch position.

The touch sensing unit 600 may include a touch driver for sequentially supplying the touch driving signal to the first touch electrodes 511 between the touch sensors and the second touch electrode 512 between the touch sensors, And a touch receiving unit for determining whether or not the polarizing film 500 is touched and the touch position using the sensing signals transmitted from the touch panel.

However, the present invention is also applicable to the case where the touch sensing signals for touch detection are sequentially supplied to the second touch electrodes 512 and the touch sensing signals are received from the first touch electrodes 511 .

FIGS. 4A to 4G are flowcharts illustrating a method of manufacturing a polarizing film and a method of manufacturing an OLED panel using the method according to the present invention, and FIG. 5 is an exemplary view illustrating another structure of FIG. 4B.

4A to 4G, a method of fabricating an organic light emitting display panel according to an exemplary embodiment of the present invention includes forming a panel 100 having pixels including organic light emitting diodes and transistors for driving the organic light emitting diodes A first functional film 531 having a first touch electrode 511 formed on a lower surface thereof and a second functional film 532 having a second touch electrode 512 formed on a lower surface thereof, A step of forming a film 500, a step of attaching the panel 100 and the polarizing film 500, and a step of forming a cover plate 700 for protecting the panel 100 and the polarizing film 500 .

Referring to FIG. 4A, the step of forming the panel 100 according to the present invention includes forming a lower substrate 110 having pixels including organic light emitting diodes and transistors for driving the organic light emitting diodes And forming an upper substrate 120 for protecting the organic light emitting diode formed on the lower substrate 110. [

The lower substrate 110 may include a lower base substrate, a switching transistor driven according to a scan signal supplied along gate lines GL1 to GLg formed on the lower base substrate, A driving transistor which is driven in accordance with a data voltage supplied through the switching transistor, from the data lines (DL1 to DLd) formed on the base substrate, a flat film formed on the driving transistor, And an organic light emitting diode connected to the first driving electrode of the driving transistor.

The lower substrate 110 is sealed with an upper substrate 120 to prevent moisture penetration and the organic light emitting diode from the outside.

The step of forming the polarizing film 500 may include forming a first functional film 531 having a first touch electrode 511 on a lower surface thereof, forming a second touch electrode 512 on the lower surface, Forming a second functional film 532 on the second functional film 532 by bonding the first functional film 531 and the second functional film 532 to each other; (560).

First, on the lower surface of the first functional film 531, the first touch electrode 511 is formed along a first direction of the panel 100, as shown in FIG. 4B.

The first functional film 531 may be a lambda / 4 phase retardation film for preventing the light incident from the outside to the panel 100 from being reflected internally and then emitted to the outside. On the lower surface of the first functional film 531, the first touch electrode 511 is formed along a first direction of the panel 100. The first touch electrode 511 may be formed of Al or Cu.

In addition, a blackening layer 540 may be formed under the first touch electrode 511 as shown in FIG. The blackening layer 540 functions to prevent light that is incident on the display panel from being externally reflected by the first touch electrode 511. The blackening layer 540 may be made of AlOxNy or NiCa.

4C, the second touch electrode 512 is formed on the second functional film 532 along the second direction of the panel 100. Referring to FIG.

If the first functional film 531 is a? / 4 phase retardation film, the second functional film 531 may be a zero phase retardation film or a? / 4 phase retardation film for complementing the first functional film 531, Phase retardation film.

However, the present invention is not limited thereto, and the second functional film 532 may be any one of functional films capable of exhibiting optimum effects such as birefringence, dichroism, reflection, and brightness enhancement.

In the above description, the present invention has been described with reference to the case where the first functional film 531 is a? / 4 phase retardation film. However, the second functional film 532 may be formed of a? / 4 phase retardation film have.

If the second functional film 532 is a? / 4 phase retardation film, the first functional film 531 may be a zero phase retardation film or a? / 4 phase retardation film for complementing the second functional film 532, Phase retardation film. The second touch electrode 512 is formed on the lower surface of the second functional film 532 along the second direction of the panel 100 as described above. The second touch electrode 512 may be formed of the same material as the first touch electrode 511.

In addition, a blackening layer may be formed under the second touch electrode 512. The blackening layer functions to prevent light that is incident on the display panel from being externally reflected by the second touch electrode 512. The blackening layer may be made of AlOxNy or NiCa. The blackening layer 540 may be formed at the ends of the first touch electrode 511 or the second touch electrode 512, as shown in FIG. However, the blackening layer 540 may be formed between the first functional film 531 or the second functional film 532 and the first touch electrode 511 or the second touch electrode 512 It is possible.

Third, the first functional film 531 and the second functional film 532 are bonded to each other by the first adhesive material 551 as shown in FIG. 4D. The first adhesive material 551 may be B-PSA (B-Pressure Sensitive Adhesive), UV resin, OCR (Optically Clear Resin), or OCA (Optically Clear Adhesive).

The first touch electrode 511 and the second touch electrode 512 are insulated with the first functional film 531 and the second adhesive material 552 interposed therebetween. In the polarizing film 500 in which the touch electrode is formed, whether or not the touch is recognized using the change amount of capacitance formed between the first touch electrode 511 and the second touch electrode 512.

Fourth, the second functional film 532 is bonded to the polarizing film 560 using a second adhesive material 552, as shown in FIG. 4E.

At this time, the second adhesive material 552 may be formed of UV resin, OCR (Optically Clear Resin), or OCA (Optically Clear Adhesive).

The polarizing film 560 includes a polarizer 562, a first protective film 561 attached to the lower portion of the polarizing element 562, a second protective film 562 attached to the upper portion of the polarizing element 562, And a hard coating layer 564 formed on the surface of the first protective film 563 and the second protective film 563.

At this time, the polarizing element 562 may be formed of PVA (Poly Vinyl Alcohol).

The first protective film 561 and the second protective film 563 may be formed of TAC (tri-acetate cellulose) or acrylic, which is an optically isotropic film.

In addition, the hard coating layer 564 may be formed of a material having characteristics such as scattering, hardness enhancement, anti-reflection, and low reflection.

The polarizing film 560 functions to change unpolarized light into linearly polarized light. That is, it transmits a light that vibrates in one direction of the incident light and a polarizing function that absorbs light that vibrates in the other direction.

Fifth, the polarizing film 500 having the touch electrode is adhered to the panel 100 using a third adhesive material 553, as shown in FIG. 4F.

At this time, the third adhesive material 553 may be formed of UV resin, OCR (Optically Clear Resin), or OCA (Optically Clear Adhesive).

4G, a fourth adhesive material 554 is used to protect the panel 100 and the polarizing film 500 on the panel 100 and the polarizing film 500, A cover plate 700 is attached.

The fourth adhesive material 554 may be formed of a UV resin, an OCR (Optically Clear Resin), or an OCA (Optically Clear Adhesive).

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: panel 200: gate driver
300: Data driver 400: Timing controller
500: polarizing film 600: touch sensing unit

Claims (10)

A first functional film on which a first touch electrode is formed;
A second functional film on which a second touch electrode is formed;
A first adhesive material for bonding the first functional film and the second functional film; And
And a polarizing film formed on the second functional film. The method according to claim 1,
Wherein one of the first functional film and the second functional film is composed of a? / 4 retardation film. The method according to claim 1,
Wherein the first touch electrode and the second touch electrode are insulated from each other with the first functional film and the first adhesive material interposed therebetween. The method according to claim 1,
Wherein a blackening layer for preventing reflection of light is formed on the first touch electrode and the second touch electrode. 5. The method of claim 4,
Wherein the blackening layer is made of AlOxNy or NiCa. Forming a first functional film on which a first touch electrode is formed;
Forming a second functional film on which a second touch electrode is formed;
Bonding the first functional film and the second functional film; And
And bonding the polarizing film to the second functional film. The method according to claim 6,
And forming a blackening layer on the first touch electrode and the second touch electrode. Forming a panel having pixels including an organic light emitting diode and a transistor for driving the organic light emitting diode;
Forming a polarizing film including a first functional film on which a first touch electrode is formed and a second functional film on which a second touch electrode is formed;
Attaching the panel and the polarizing film; And
And forming a cover plate for protecting the panel and the polarizing film. 9. The method of claim 8,
The step of forming the polarizing film includes:
Forming a first functional film on which a first touch electrode is formed;
Forming a second functional film on which a second touch electrode is formed;
Bonding the first functional film and the second functional film; And
And bonding a polarizing film including a hard coating layer on the second functional film. 10. The method of claim 9,
And forming a blackening layer on the first touch electrode and the second touch electrode.

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