KR102447695B1 - Polarizing Plate And Organic Light Emitting Diode Display Device - Google Patents

Abstract

The present invention, tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (polyethylene terephthalate: PET), cyclo olefin polymer (COP) of A polarizing plate including a first phase delay layer including one base material and a flame retardant, a polarizing layer disposed on the first phase delay layer, and a protective layer disposed on the polarizing layer, and an organic light emitting diode including the same To provide a display device, by mixing a flame retardant with a base material to form a phase delay layer of a polarizing plate for anti-reflection, smoke or combustion due to external impact is prevented.

Description

Polarizing Plate And Organic Light Emitting Diode Display Device Containing Same {Polarizing Plate And Organic Light Emitting Diode Display Device}

The present invention relates to an organic light emitting diode display, and more particularly, to a polarizing plate including a flame retardant and an organic light emitting diode display including the same.

An organic light emitting diode (OLED) display, which is one of flat panel displays (FPD), has high luminance and low operating voltage characteristics.

And, since it is a self-luminous type that emits light by itself, the contrast ratio is large, it is possible to implement an ultra-thin display, and it is easy to implement a moving image with a response time of several microseconds (㎲), and there is no restriction on the viewing angle.

Such an organic light emitting diode display device has improved performance and appearance along with reduction in thickness and weight, but durability against external impact is decreasing due to reduction in thickness and weight. In particular, since the organic light emitting diode display device is a current driving method that emits light by supplying current to the light emitting diode, when an internal circuit is damaged by an external impact, a local high temperature is generated by the high current, which acts as a combustion source There is a problem in that a plurality of films attached to the outermost part of the light emitting diode display are burned.

That is, a plurality of films attached to the outermost layer of the organic light emitting diode display are made of organic materials weak to heat. The polymer chains of the organic materials are decomposed by the local high temperature caused by the high current, and the decomposed polymer chains react with oxygen again and burn. There is a problem in that a lot of smoke is generated due to the continuous combustion action in which the heat generated from combustion decomposes the polymer again.

The heat caused by the continuous combustion action adversely affects the organic light emitting diode display, and when smoke is generated, it causes a feeling of fear in consumers, and there is a problem in that it is transferred to the surroundings and causes a fire.

The present invention has been proposed to solve this problem, and by mixing a flame retardant with a base material to form a phase delay layer of a polarizing plate for antireflection, it is an object of the present invention to provide an organic light emitting diode display that prevents smoke or combustion due to external impact do it with

Another object of the present invention is to provide an organic light emitting diode display device in which stability is further improved by mixing a flame retardant with a base material to form a phase delay layer and a protective layer of a polarizing plate for antireflection.

In order to solve the above problems, the present invention is tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), cyclo olefin polymer (cyclo olefin polymer) : COP) provides a polarizing plate comprising a first phase delay layer comprising one of the base material and a flame retardant, a polarizing layer disposed on the first phase delay layer, and a protective layer disposed on the polarizing layer .

And, the base material of the first phase delay layer is polycarbonate (PC), and the flame retardant is triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (resorcinol bis (diphenylphosphate) ): RDP), bisphenol A bis (diphenyl phosphate) (bisphenol A bis (diphenylphosphate): BDP), hexaphenoxytricyclophosphazene, nitrilotris (methyl phosphonamidic acid) (nitrilotris (methylphosphonamidic acid) )) of an ammonium salt, potassium diphenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), and an aromatic silicone compound.

In addition, the base material of the first phase delay layer is polyethylene terephthalate (PET), and the flame retardant is 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (9.10 dihydro-9-oxa- 10-phosphophenanthrene-10-oxide (DOPO).

The polarizing plate is disposed between the first phase delay layer and the polarizing layer, and is tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET). ), cyclo olefin polymer (cyclo olefin polymer: COP) may further include a second phase delay layer comprising one of the base material and a flame retardant.

In addition, the first and second phase delay layers may be a quarter wave plate (QWP) and a half wave plate (HWP), respectively.

In addition, the protective layer may include a flame retardant.

On the other hand, the present invention, the first and second substrates facing each other and spaced apart, a thin film transistor and a light emitting diode disposed on the inner surface of the first substrate, and an anti-reflection polarizing plate disposed on the outer surface of the second substrate, tri-acetyl A first comprising a base material of one of cellulose (tri-acetyl cellulose: TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cyclo olefin polymer (COP) and a flame retardant Provided is an organic light emitting diode display including the antireflection polarizing plate including a phase delay layer, a polarizing layer disposed on the first phase delay layer, and a protective layer disposed on the polarization layer.

And, the base material of the first phase delay layer is polycarbonate (PC), and the flame retardant is triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (resorcinol bis (diphenylphosphate) ): RDP), bisphenol A bis (diphenyl phosphate) (bisphenol A bis (diphenylphosphate): BDP), hexaphenoxytricyclophosphazene, nitrilotris (methyl phosphonamidic acid) (nitrilotris (methylphosphonamidic acid) )) of an ammonium salt, potassium diphenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), and an aromatic silicone compound.

In addition, the base material of the first phase delay layer is polyethylene terephthalate (PET), and the flame retardant is 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (9.10 dihydro-9-oxa- 10-phosphophenanthrene-10-oxide (DOPO).

In addition, the anti-reflection polarizing plate is disposed between the first phase delay layer and the polarizing layer, and includes tri-acetyl cellulose (TAC), polycarbonate (PC), and polyethylene terephthalate. : PET) and cyclo olefin polymer (COP) may further include a second phase delay layer containing one of the base material and a flame retardant.

The present invention has an effect of preventing smoke or combustion due to external impact by mixing a flame retardant with a base material to form a retardation layer of a polarizing plate for antireflection.

In addition, the present invention has the effect of further improving stability by mixing a flame retardant with a base material to form a phase delay layer and a protective layer of the antireflection polarizing plate.

1 is a cross-sectional view of an organic light emitting diode display device according to a first embodiment of the present invention;
2 is a cross-sectional view of an organic light emitting diode display device according to a second embodiment of the present invention.

A polarizing plate and an organic light emitting diode display including the same according to the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view of an organic light emitting diode display device according to a first embodiment of the present invention.

As shown in FIG. 1 , the organic light emitting diode display 110 according to the first embodiment of the present invention includes first and second substrates 120 and 150 that face each other and are spaced apart from each other. Reference numeral 120 denotes a lower plate, a TFT substrate, or a backplane, and the second substrate 150 is also called an encapsulation substrate.

Although not shown, on the inner surface of the first substrate 120 , gate wirings, data wirings, and power wirings that cross each other and define a pixel region are formed, and a switching thin film transistor, a driving thin film transistor Td and a light emitting diode are formed in each pixel region. (De) is formed.

The switching thin film transistor is connected to the gate wiring and the data line, the driving thin film transistor Td is connected to the switching thin film transistor and the power wiring, and the light emitting diode De is connected to the driving thin film transistor Td.

Specifically, the gate electrode 122 is formed in each pixel area on the inner surface of the first substrate 120 , and the gate insulating layer 124 is formed on the entire surface of the first substrate 120 above the gate electrode 122 .

A semiconductor layer 126 is formed on the gate insulating layer 124 corresponding to the gate electrode 122 , and a source electrode 128 and a drain electrode 130 spaced apart from each other facing each other are formed on the semiconductor layer 126 . do.

Here, the gate electrode 122 , the gate insulating layer 124 , the semiconductor layer 126 , the source electrode 128 , and the drain electrode 130 constitute a driving thin film transistor Td, and the switching thin film transistor is a driving thin film transistor. It has the same cross-sectional configuration as (Td).

In another embodiment, a plurality of thin film transistors other than the switching thin film transistor and the driving thin film transistor Td may be further formed in each pixel area.

A protective layer 132 is formed on the switching thin film transistor and the driving thin film transistor Td, and a first electrode connected to the source electrode 128 of the driving thin film transistor Td through a contact hole on the protective layer 132. (134) is formed.

A bank layer 136 is formed on the first electrode 134 to cover the edge of the first electrode 134 and expose the central portion of the first electrode 134 , and the first exposed through the bank layer 136 . A light emitting layer 138 is formed on the electrode 134 .

The second electrode 140 is formed on the entire surface of the first substrate 120 on the emission layer 138 and the bank layer 136 .

Here, the first electrode 134 , the light emitting layer 138 , and the second electrode 140 constitute the light emitting diode De.

On the other hand, the first and second substrates 150 may be bonded by a seal pattern (not shown) at the edges, and the space between the first and second substrates 150 may be empty or filled with a sealing material.

An anti-reflection polarizing plate 152 is formed on the outer surface of the second substrate 150, and the polarizing plate 152 includes a first phase delay layer 152a and a polarization layer 152b formed on the first phase delay layer 152a. , a protective layer 152c formed on the polarization layer 152b.

The first phase delay layer 152a serves to convert linearly polarized incident light into circularly polarized light or converts circularly polarized incident light into linearly polarized light. It may be a quarter wave plate (QWP) having an optical axis of the figure, tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), cyclo It may be formed by stretching one of cyclo olefin polymers (COP).

The polarization layer 152b serves to convert unpolarized incident light into linearly polarized light, and may be formed by stretching poly-vinyl alcohol (PVA) dyed with iodine (I) or dye.

The protective layer 152c serves to protect the polarizing layer 152a, and may be made of one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP). , it may serve to prevent handprints such as fingerprints from being left by surface treatment or to prevent external light from being reflected.

The polarizing plate 152 serves to prevent external light from being reflected by the organic light emitting diode display 110, and when external unpolarized light is incident on the organic light emitting diode display 110, the polarization layer 152b is converted into linearly polarized light parallel to the transmission axis of the polarization layer 152b while passing through, converted into one of left circularly polarized light and right circularly polarized light while passing through the first phase delay layer 152a, and the first and second substrates 120 and 150 .

Then, while passing through the first phase delay layer 152a again, it is converted into linearly polarized light perpendicular to the transmission axis of the polarization layer 152b, and is absorbed while passing through the polarization layer 152b. As a result, unpolarized external light is All of the polarizing plate 152 disappears, and reflection of external light in the organic light emitting diode display 110 may be prevented.

Here, in order to prevent smoke or combustion caused by an external shock in the organic light emitting diode display 110 , the first phase retardation layer 152a of the polarizing plate 152 further includes a flame retardant.

For example, the first phase delay layer 152a may be formed of a polycarbonate (PC) base material, triphenyl-phosphate (TPP), resorcinol bis(diphenylphosphate), and resorcinol bis(diphenylphosphate). ): RDP), bisphenol A bis (diphenyl phosphate) (bisphenol A bis (diphenylphosphate): BDP), hexaphenoxytricyclophosphazene, nitrilotris (methyl phosphonamidic acid) (nitrilotris (methylphosphonamidic acid) )) of ammonium salt, potassium diphenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), and aromatic silicone compound by adding one of them as a flame retardant. can be formed

At this time, resorcinol bis(diphenyl phosphate) (RDP), bisphenol A bis(diphenyl phosphate) (BDP), potassium diphenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), The aromatic silicone compound may be added in an amount of about 0.5 parts by weight or more (wt%) to about 1.0 parts by weight (wt%) or less with respect to the mixed solution of polycarbonate (PC) and the flame retardant, respectively, hexaphenoxy tricyclophosphazene, Ammonium salt of nitrilotris (methyl phosphan amidic acid) may be added in an amount of about 5 parts by weight or more (wt%) to about 10 parts by weight (wt%) with respect to the mixed solution of polycarbonate (PC) and flame retardant, respectively. have.

And, the first phase delay layer 152a is, on a base material of polyethylene terephthalate (PET), 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (9.10 dihydro-9-oxa-10) -phosphophenanthrene-10-oxide: DOPO) can be added as a flame retardant.

The flame retardant has a superior flame retardant function at the initial stage of combustion as the volatile material is higher.

In addition, since polycarbonate (PC) and polyethylene terephthalate (PET) used as the base material of the first phase delay layer 152a have excellent properties of imparting anisotropy in the stretching direction, the first phase delay layer 152a) can be easily formed into a quarter wave plate.

In particular, the change in the refractive index anisotropy (Δn) of the anisotropic medium with respect to the wavelength (λ) of the incident light is called a dispersion characteristic. can be controlled.

That is, if the refractive index anisotropy of an anisotropic medium is proportional to the wavelength of the incident light, it is called reverse dispersion. , an additive may be adjusted so that the first phase delay layer 152a made of polycarbonate (PC) has one of inverse dispersion, normal dispersion, and equal dispersion, and preferably, the first phase delay layer 152a is inversely dispersed. By having dispersion, the phase difference of the first phase delay layer 152a can be made constant regardless of the wavelength of the incident light.

As such, in the organic light emitting diode display 110 according to the first embodiment of the present invention, tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), cycloolefin polymer (COP) By stretching a mixed solution containing a flame retardant to one base material to form the first phase delay layer 152a, smoke is generated in the polarizing plate 152 by an external impact or the polarizing plate 152 is burned. can be prevented

Meanwhile, in the first embodiment, the protective layer 152c is formed of one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) as an example, but other In an embodiment, triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (RDP), bisphenol A bis (diphenyl phosphate) (BDP), hexaphenoxy tricyclo to the base material of polycarbonate (PC) Phosphazene, ammonium salt of nitrilotris (methyl phosphan amidic acid), potassium diphenylsulfone sulfonate (KSS), potassium nonafluoro butanesulfonate (FSK), aromatic silicone compound, or , to the base material of polyethylene terephthalate (PET), 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO) may be added as a flame retardant to form the protective layer 152c.

As such, in the organic light emitting diode display 110 according to another embodiment of the present invention, one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) The first phase delay layer 152a is formed by adding a flame retardant to the base material of the By this, it is possible to prevent the polarizing plate 152 from generating smoke or burning the polarizing plate 152 and at the same time to further improve the stability of the polarizing plate 152 .

On the other hand, in the first embodiment, the polarizing plate 152 includes one phase delay layer as an example, but in another embodiment, the polarizing plate may include two phase delay layers, which will be described with reference to the drawings. .

2 is a cross-sectional view of an organic light emitting diode display according to a second embodiment of the present invention, and descriptions of the same parts as those of the first embodiment will be omitted.

As shown in FIG. 2 , the organic light emitting diode display 210 according to the second embodiment of the present invention includes first and second substrates 220 and 250 that face each other and are spaced apart from each other.

Specifically, in each pixel region on the inner surface of the first substrate 220 , a driving thin film including a gate electrode 222 , a gate insulating layer 224 , a semiconductor layer 226 , a source electrode 228 , and a drain electrode 230 . A transistor Td is formed.

A protective layer 232 is formed on the driving thin film transistor Td, the protective layer 232 is connected to the driving thin film transistor Td, and the first electrode 234, the light emitting layer 238, and the second electrode 240 are formed. A light emitting diode (De) including the is formed.

An anti-reflection polarizing plate 252 is formed on the outer surface of the second substrate 250. The polarizing plate 252 includes a first phase delay layer 252a and a second phase delay layer formed on the first phase delay layer 252a. 252b, a polarization layer 252c formed on the second phase delay layer 252b, and a protective layer 252d formed on the polarization layer 252c.

The first phase delay layer 252a serves to convert linearly polarized incident light into circularly polarized light or convert circularly polarized incident light into linearly polarized light. It may be a quarter wave plate (QWP) with tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), cycloolefin polymer ( It may be formed by stretching one of cyclo olefin polymer: COP).

The second phase delay layer 252b serves to convert linearly polarized incident light into vertical linearly polarized light or convert circularly polarized incident light into opposite circularly polarized light. It may be a half wave plate (QWP) having an optical axis of 15 degrees, and one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) is stretched. (stretching) may be formed.

The polarization layer 252c serves to convert unpolarized incident light into linearly polarized light, and may be formed by stretching poly-vinyl (PVA) dyed with iodine (I) or dye.

The protective layer 252d serves to protect the polarizing layer 252c, and may be made of one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP). , it may serve to prevent handprints such as fingerprints from being left by surface treatment or to prevent external light from being reflected.

The polarizing plate 252 serves to prevent external light from being reflected by the organic light emitting diode display 210, and when external unpolarized light is incident on the upper portion of the organic light emitting diode display 210, the polarization layer 252c is converted into linearly polarized light parallel to the transmission axis of the polarization layer 252c while passing through, and converted into linearly polarized light perpendicular to the transmission axis of the polarization layer 252c while passing through the second phase delay layer 252b, and the first phase delay The first electrode 234, the source electrode 228, the drain electrode 230, and the gate are converted into one of left circularly polarized light and right circularly polarized light while passing through the layer 252a, and between the first and second substrates 220 and 250. It is converted into the other of the left circularly polarized light and the right circularly polarized light while being reflected by the reflective material layer such as the electrode 222 .

Then, while passing through the first phase delay layer 252a again, it is converted into linearly polarized light parallel to the transmission axis of the polarization layer 252c, and passes through the second phase delay layer 252b on the transmission axis of the polarization layer 252c. It is converted into vertical linearly polarized light and is absorbed while passing through the polarization layer 252c. As a result, all of the non-polarized external light is annihilated by the polarizing plate 252 and the external light reflection in the organic light emitting diode display 210 is reduced. can be prevented

Here, in order to prevent smoke or combustion due to an external shock in the organic light emitting diode display 210 , the first and second phase delay layers 252a and 252b of the polarizing plate 252 are each formed of a flame retardant. include more

For example, the first and second phase retardation layers 252a and 252b are, respectively, on a base material of polycarbonate (PC), triphenyl-phosphate (TPP), resorcinol bis(diphenyl phosphate) (RDP) , Bisphenol A bis(diphenyl phosphate) (BDP), hexaphenoxy tricyclophosphazene, ammonium salt of nitrilotris(methyl phosphanamidic acid), potassium diphenylsulfone sulfonate (KSS), nonafluorobutane It can be formed by adding one of potassium sulfonate (FSK), an aromatic silicone compound, as a flame retardant.

At this time, resorcinol bis(diphenyl phosphate) (RDP), bisphenol A bis(diphenyl phosphate) (BDP), potassium diphenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), The aromatic silicone compound may be added in an amount of about 0.5 parts by weight or more (wt%) to about 1.0 parts by weight (wt%) or less with respect to the mixed solution of polycarbonate (PC) and the flame retardant, respectively, hexaphenoxy tricyclophosphazene, Ammonium salt of nitrilotris (methyl phosphan amidic acid) may be added in an amount of about 5 parts by weight or more (wt%) to about 10 parts by weight (wt%) with respect to the mixed solution of polycarbonate (PC) and flame retardant, respectively. have.

In addition, the first and second phase delay layers 252a and 252b are, respectively, on a base material of polyethylene terephthalate (PET), 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO) It can be formed by adding a flame retardant.

The flame retardant has a superior flame retardant function at the initial stage of combustion as the volatile material is higher.

In addition, polycarbonate (PC) and polyethylene terephthalate (PET) used as base materials of the first and second phase delay layers 252a and 252b have excellent properties of imparting anisotropy in the stretching direction, so that the first and The second phase delay layers 252a and 252b can be easily formed into a quarter wave plate and a half wave plate, respectively.

In particular, the change in the refractive index anisotropy (Δn) of the anisotropic medium with respect to the wavelength (λ) of the incident light is called a dispersion characteristic, and the polycarbonate (PC) is the first and second phase delay layers 252a, 252b) can be controlled.

As described above, in the organic light emitting diode display 210 according to the second embodiment of the present invention, among tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) The first and second phase delay layers 252a and 252b are formed by stretching a mixed solution containing a flame retardant to one base material, thereby generating smoke from the polarizing plate 252 or the polarizing plate 252 due to an external impact. ) can be prevented from burning.

Meanwhile, in the second embodiment, the protective layer 252d is formed of one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) as an example, but other In an embodiment, triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (RDP), bisphenol A bis (diphenyl phosphate) (BDP), hexaphenoxy tricyclo to the base material of polycarbonate (PC) Phosphazene, ammonium salt of nitrilotris (methyl phosphan amidic acid), potassium diphenylsulfone sulfonate (KSS), potassium nonafluoro butanesulfonate (FSK), aromatic silicone compound, or , to the base material of polyethylene terephthalate (PET), 9.10 dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO) may be added as a flame retardant to form the protective layer 252d.

As such, in the organic light emitting diode display 210 according to another embodiment of the present invention, one of tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and cycloolefin polymer (COP) The first and second phase retardation layers 252a and 252b are formed by adding a flame retardant to the base material of the By forming, it is possible to prevent the polarizing plate 252 from generating smoke or burning the polarizing plate 252 due to external impact, and at the same time to further improve the stability of the polarizing plate 252 .

Although the above has been described with reference to the preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

110: organic light emitting diode display 120: first substrate
150: second substrate Td: driving thin film transistor
De: light emitting diode 152: polarizing plate
152a: first phase delay layer 152b: polarization layer
152c: protective layer

Claims (12)

Polycarbonate (PC) base material and triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (RDP), bisphenol A bis (diphenyl phosphate) (bisphenol A bis (diphenylphosphate): BDP), hexaphenoxytricyclophosphazene, ammonium salt of nitrillotris (methylphosphonamidic acid), potassium di a first phase retardation layer including a flame retardant that is one of phenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), and an aromatic silicone compound;
a polarization layer disposed on the first phase delay layer;
a protective layer disposed on the polarizing layer
including,
One of said resorcinol bis(diphenyl phosphate), said bisphenol A bis(diphenyl phosphate), said potassium diphenylsulfone sulfonate, said nonafluoro butanesulfonate potassium and said aromatic silicone compound, said poly 0.5 parts by weight (wt%) or more and 1.0 parts by weight (wt%) or less with respect to the mixed solution of the carbonate and the flame retardant,
The hexaphenoxy tricyclophosphazene or the ammonium salt of the nitrilotris (methyl phosphanamidic acid) is 5 parts by weight or more (wt%) or more and 10 parts by weight (wt%) with respect to the mixed solution of the polycarbonate and the flame retardant A polarizing plate to be added below.
delete delete The method of claim 1,
It is disposed between the first phase delay layer and the polarizing layer, and is tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and a cycloolefin polymer ( A polarizing plate further comprising a second phase retardation layer comprising one of the base material and a flame retardant of cyclo olefin polymer: COP.
5. The method of claim 4,
The first phase delay layer is a quarter wave plate (QWP) having an optical axis of 75 degrees based on 0 degrees in the left and right direction when viewed from the front, and the second phase delay layer is a left and right direction when viewed from the front. A polarizing plate that is a half wave plate (HWP) having an optical axis of 15 degrees with respect to 0 degrees.
The method of claim 1,
The protective layer is a polarizing plate comprising a flame retardant.
first and second substrates facing each other and spaced apart from each other;
a thin film transistor and a light emitting diode disposed on the inner surface of the first substrate;
As an anti-reflection polarizing plate disposed on the outer surface of the second substrate,
Polycarbonate (PC) base material and triphenyl-phosphate (TPP), resorcinol bis (diphenyl phosphate) (RDP), bisphenol A bis (diphenyl phosphate) (bisphenol A bis (diphenylphosphate): BDP), hexaphenoxytricyclophosphazene, ammonium salt of nitrillotris (methylphosphonamidic acid), potassium di a first phase retardation layer including a flame retardant that is one of phenylsulfone sulfonate (KSS), nonafluorobutanesulfonate potassium (FSK), and an aromatic silicone compound;
a polarizing layer disposed on the first phase delay layer;
a protective layer disposed on the polarizing layer
The anti-reflection polarizing plate comprising
including,
One of said resorcinol bis(diphenyl phosphate), said bisphenol A bis(diphenyl phosphate), said potassium diphenylsulfone sulfonate, said nonafluoro butanesulfonate potassium and said aromatic silicone compound, said poly 0.5 parts by weight (wt%) or more and 1.0 parts by weight (wt%) or less with respect to the mixed solution of the carbonate and the flame retardant,
The hexaphenoxy tricyclophosphazene or the ammonium salt of the nitrilotris (methyl phosphanamidic acid) is 5 parts by weight or more (wt%) or more and 10 parts by weight (wt%) with respect to the mixed solution of the polycarbonate and the flame retardant An organic light emitting diode display to be added below.
delete delete 8. The method of claim 7,
The anti-reflection polarizing plate,
It is disposed between the first phase delay layer and the polarizing layer, and is tri-acetyl cellulose (TAC), polycarbonate (PC), polyethylene terephthalate (PET), and a cycloolefin polymer ( A second phase retardation layer comprising a base material of one of cyclo olefin polymer (COP) and a flame retardant
An organic light emitting diode display further comprising a.
The method of claim 1,
The first phase delay layer is a polarizing plate having an optical axis of 45 degrees or 135 degrees based on 0 degrees in the left and right direction when viewed from the front.
5. The method of claim 4,
The second phase delay layer is a polarizing plate in direct contact with the first phase delay layer and the polarizing layer, respectively.

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