KR20160066400A - Color polarization plate and organic light emitting display device having thereof - Google Patents

Abstract

The present invention provides a color polarizing plate, including dichroic dyes to filter inputted white light and polarize the light. The color polarizing plate is composed of reactive mesogens which are host materials and dichroic dyes which are guest materials. As a color polarizing layer (150) is applied, the host materials are arranged in a certain direction and the dichroic dyes are arranged along the host materials to polarize the inputted light in the certain direction, thereby preventing the reflection of external light and implementing colors by read (R), green (G), and blue (B) dyes.

Description

Technical Field [0001] The present invention relates to a color polarizing plate and an organic light emitting display having the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color polarizing plate and an organic light emitting display having the same, and more particularly, to a color polarizing plate having functions of a color filter and a polarizing plate and an organic electroluminescent display device.

2. Description of the Related Art Recently, various flat panel display devices capable of reducing weight and volume, which are disadvantages of cathode ray tubes (CRTs), have been developed. Such flat panel display devices include liquid crystal display devices, field emission display devices, plasma display panels and organic electroluminescent display devices.

Among these flat panel display devices, a plasma display has attracted attention as a display device that is most advantageous for a large-sized, small-sized and large-sized display because of its simple structure and manufacturing process. However, it has a disadvantage of low luminous efficiency, low luminance and high power consumption. On the other hand, since the affection display device uses a semiconductor process, it is difficult to form a large screen and the power consumption is large due to the backlight unit. In addition, the liquid crystal display element has a characteristic that light loss is large and a viewing angle is narrow due to optical elements such as a polarizing filter, a prism sheet, and a diffusion plate.

On the other hand, the organic electroluminescent display device is divided into an inorganic electroluminescent display device and an organic electroluminescent display device depending on the material of the light emitting layer and is self-luminous device which emits itself, has a high response speed, and has a large luminous efficiency, brightness and viewing angle . The inorganic electroluminescent display device consumes more power than the organic electroluminescent display device and can not obtain high brightness and can not emit various colors of R (Red), G (Green), and B (Blue). On the other hand, organic electroluminescence display devices are being actively studied because they can be driven at a low DC voltage of several tens volts, have a fast response speed, obtain high brightness, emit various colors of R, G, and B .

However, such an organic electroluminescence display device has the following problems. That is, the organic electroluminescent display device is mainly used as a display device of a portable device, and is used indoors, but is also used outside. In this way, when the organic light emitting display device is used outside, when light outside is input to the organic light emitting display device and reflected, the light emitted from the organic light emitting display device and the light input from the outside are mixed The light emitted from the organic electroluminescence display device, that is, the image realized by the organic light emitting display device, can not be recognized by the user's eyes.

In order to solve such a problem, a polarizing plate is attached to the whole surface of the organic light emitting display panel. The light incident from the outside only transmits the light polarized in a specific direction through the polarizing plate and the transmitted light changes its polarization state when it is reflected by the organic light emitting display panel so that the reflected light can not transmit through the polarizing plate The external light is reflected and the visibility is prevented from being lowered.

However, when the polarizing plate is installed on the entire surface of the organic light emitting display panel, the light emitted from the organic light emitting display panel is absorbed by the polarizing plate, thereby lowering the transmittance of the organic light emitting display.

An object of the present invention is to provide a color polarizing plate capable of realizing color by filtering input white light including a dichroic dye and polarizing light.

It is another object of the present invention to provide an organic light emitting display device having the color polarizing layer.

In order to achieve the above-mentioned object, in the present invention, the color polarizing plate is composed of a reactive liquid crystal monomer (reactive mesogens) as a host material and a dichroic dye as a guest material. As the color polarizing layer 150 is applied, The material is arranged along a certain direction and the dichroic dye is arranged along the host material to polarize the incoming light in a specific direction.

The dichroic dye is composed of R (red), G (green), B (blue) or cyan dyes, magenta dyes and yellow dyes, .

The color polarizing plate of the present invention is disposed on the outside or inside of the organic light emitting display panel to filter the white light emitted from the display panel to realize a desired color and to polarize the light incident from the outside in a specific direction, do.

The organic light emitting display panel includes R, G, and B pixels or R, G, and B pixels, and R, G, and B pixels include R, G, and B dichroic dyes A color polarizing layer is formed, and in the case of R, W, G, and B pixels, R, Blck, G, and B color polarizing layers including R, Black, G and B dichroic dyes are formed.

In the present invention, the following effects can be obtained.

First, in the present invention, since the color filter layer and the polarizing plate are formed as one layer, the manufacturing cost can be reduced and the manufacturing process can be simplified.

Second, in the present invention, brightness can be improved by minimizing light absorption. In the conventional organic electroluminescent display device, the color filter layer and the polarizing plate are separately provided, and light is absorbed by the color filter layer and the polarizing plate, respectively. In contrast, in the present invention, light absorption occurs only in one layer, .

1 is a view illustrating a structure of an organic light emitting display device according to an embodiment of the present invention.
2 is a view illustrating a structure of an organic light emitting display device according to another embodiment of the present invention.
Figs. 3 (a) to 3 (c) are diagrams showing the pixel structure of an organic electroluminescence display device in which a color polarizing layer is formed on the outside of a display panel; Fig.
4A to 4C are diagrams showing the pixel structure of an organic electroluminescence display element in which a color polarizing layer is formed in a display panel, respectively.

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

1 is a view illustrating a structure of an organic light emitting display device according to an embodiment of the present invention. At this time, the organic electroluminescence display device may have various structures, but an organic electroluminescence display device having a specific structure will be described below. Of course, the present invention is not limited to the organic electroluminescence display device having the following specific structure.

In general, the organic electroluminescence display device is composed of a plurality of R, G, and B pixels that emit red light, green light, and blue light. However, for convenience of explanation, only the outermost pixels and the outermost areas of adjacent display areas Respectively.

As shown in FIG. 1, an organic light emitting display panel 101 according to the present invention includes a display region where a plurality of pixel regions are formed and realizes an image, and a signal formed outside the display region, And an outer region in which wiring and pads to be formed are formed.

A buffer layer 122 is formed on the first substrate 110 made of a soft material such as plastic and a driving thin film transistor is formed on the display region on the buffer layer 122. Although not shown in the figure, the driving TFTs are formed in R, G, and B pixel regions, respectively. The semiconductor layers 112 are formed on R, G, and B pixel regions on the buffer layer 122, A gate electrode 111 formed on the first insulating layer 123 and a gate electrode 111 formed on the first insulating layer 123 so as to cover the gate electrode 111, A second insulating layer 124 formed on the entire surface of the substrate 110 and a source electrode 122 contacting the semiconductor layer 112 through contact holes formed in the first insulating layer 123 and the second insulating layer 124, 114 and a drain electrode 115,

The buffer layer 122 may be formed of a single layer or a plurality of layers, and the semiconductor layer 112 may be formed of a transparent oxide semiconductor such as crystalline silicon or IGZO (Indium Gallium Zinc Oxide) And a source electrode 114 and a drain electrode 115 are in contact with the doping layer.

The first insulating layer 123 and the second insulating layer 124 may be formed of a metal such as SiO ₂ , SiNx, or the like. The gate electrode 111 may be formed of a metal such as Cr, Mo, Ta, Cu, , Or a dual layer of SiO ₂ and SiN x. The source electrode 114 and the drain electrode 115 may be formed of Cr, Mo, Ta, Cu, Ti, Al, or Al alloy.

A third insulating layer 126 is formed on the first substrate 110 on which the driving thin film transistor is formed. The third insulating layer 126 may be formed of an inorganic insulating material such as SiO ₂ .

Although not shown in the drawing, an overcoat layer may be formed on the third insulating layer 126 to planarize the first substrate 110.

Although not shown in the figure, a gate pad for applying a scanning signal to the gate electrode 111 of the driving thin film transistor and a data pad for applying a signal to the pixel electrode are formed in the outer area.

A contact hole 129 is formed in the upper third insulating layer 126 of the drain electrode 115 of the driving thin film transistor formed in the pixel region in the display region, (120) is electrically connected to the drain electrode (115) of the driving thin film transistor through the contact hole (129).

A bank layer 128 is formed at the boundary of each pixel region on the third insulating layer 126 in the display region. The bank layer 128 is a kind of barrier rib for preventing each pixel region from being mixed and outputting light of a specific color outputted from the adjacent pixel region. In addition, since the bank layer 128 fills a part of the contact hole 129, the step is reduced, and as a result, the organic light emitting part is prevented from being defective due to an excessive step in forming the organic light emitting part.

A pixel electrode 120 is formed in the display region. The pixel electrode 120 is made of a metal such as Ca, Ba, Mg, Al, or Ag, and is connected to the drain electrode 115 of the driving thin film transistor so that an image signal is applied from the outside.

The organic light emitting portion 125 is formed on the pixel electrode 120 between the bank layers 128. The organic light emitting portion 125 includes a white organic light emitting layer that emits white light. Although not shown in the drawing, the organic light emitting portion 125 includes an electron injection layer for injecting electrons and holes, an electron injection layer for injecting electrons and holes, and an electron transport layer And a hole transport layer may be formed.

The white organic light emitting layer may be formed by mixing a plurality of organic materials that emit red, green, and blue monochromatic light, or a plurality of light emitting layers that emit red, green, and blue monochromatic light, respectively. Further, the white organic light emitting layer may be formed in a tandem structure.

A common electrode 130 is formed on the organic light emitting portion 125 of the display region. The common electrode 130 is formed of a transparent metal oxide material such as indium tin oxide (ITO) or indium zinc oxide (IZO).

When the common electrode 130 is a cathode of the organic light emitting unit 125 and the pixel electrode 120 is an anode and a voltage is applied to the common electrode 130 and the pixel electrode 120, Electrons are injected into the organic light emitting portion 125 and holes are injected into the organic light emitting portion 125 from the pixel electrode 120 to generate an exciton in the organic light emitting layer, Light corresponding to energy difference between LUMO (Lowest Unoccupied Molecular Orbital) and HOMO (Highest Occupied Molecular Orbital) of the light emitting layer is generated, and the light is emitted to the outside (upward direction of the common electrode 130 in the drawing).

A first passivation layer 141 is formed on the entire surface of the first substrate 110 on the third insulating layer 126 in the outer region and the display region and on the common electrode 130 and the bank layer 128 . The first passivation layer 141 is formed of an inorganic material such as SiO ₂ or SiN x.

An organic layer 143 made of an organic material such as a polymer is formed on the first passivation layer 141 and a second passivation layer 144 made of an inorganic material such as SiO ₂ or SiNx is formed thereon.

An adhesive layer 146 is formed on the second passivation layer 144. A second substrate 148 is disposed on the second passivation layer 144 and the second substrate 148 is adhered to the second passivation layer 144 by the adhesive layer 146.

As the adhesive, any material can be used as long as it has good adhesion and good heat resistance and water resistance. In the present invention, a thermosetting resin such as an epoxy compound, an acrylate compound or an acrylic rubber is used. At this time, the adhesive layer 146 is applied to a thickness of about 5-100 mu m and cured at a temperature of about 80-170 degrees. Further, a photo-curing resin may be used as the adhesive. In this case, the adhesive layer 146 is cured by irradiating the adhesive layer with light such as ultraviolet rays.

 The adhesive layer 146 not only bonds the first substrate 110 and the second substrate 148, but also acts as an encapsulant for preventing moisture from penetrating into the organic light emitting display panel. Therefore, although the term of reference numeral 146 is referred to as an adhesive in the description of the present invention, this is for convenience only, and the adhesive layer may be referred to as an encapsulant.

As the second substrate 148, glass may be used. However, a protective film such as a PS (polystyrene) film, a PE (polyethylene) film, a PEN (polyethylene naphthalate) film or a PI (polyimide) film may be used.

In the organic light emitting display device having the above-described structure, the white light emitted from the organic light emitting portion 125 is emitted to the upper direction, that is, the protective film 148 side, thereby realizing an image. At this time, the white light emitted from the organic light emitting portion 125 and incident in the downward direction is reflected upward by the pixel electrode 120 and is output to the outside, thereby improving the light efficiency.

A quarter wave plate 155 and a color polarizing layer 150 are laminated on the second substrate 148. The color polarizing layer 152 receives white light emitted from the organic light emitting portion 125 to realize R, G, and B colors, and does not reflect light incident from the outside, thereby improving image quality.

The color polarizing layer 150 is made of a host material and a guest material. The host material mainly uses a reactive liquid crystal monomer (reactive mesogens). At this time, the reactive liquid crystal monomer is a liquid crystal substance including a terminal group capable of polymerization, and is a monomer molecule having a liquid crystal phase including a terminal capable of polymerization with a mesogen that exhibits liquid crystallinity. As the color polarizing layer 150 is applied, the host material is arranged along a certain direction.

The guest material consists of a dichroic dye. The dichroic dye absorbs one of the two polarization components of light and transmits the other component. In the present invention, iodine-based, anthraquinone-based propyrin azo, biazo, triazo etc. may be used as the dichroic dyes. Since the guest material is arranged along the host material when the host material is arranged in a certain direction, the guest material is also arranged in a specific direction.

The dichroic dyes may be red (R), green (G), and blue (B) dyes, or cyan dyes, magenta dyes, and yellow dyes.

The dichroic dye absorbs or transmits light of a specific wavelength range. In the present invention, the light of the wavelength range corresponding to R, G, and B colors or C, M, and Y among the light emitted by the organic light emitting unit 125 is polarized So as to realize color.

The light incident from the outside becomes linearly polarized light while passing through the? / 4 wave plate 155 after being linearly polarized by the light in the specific direction in the color polarizing layer 150. For example, the external light passes through the? / 4 wave plate 155 and is incident as right circularly polarized light. The right-handed circularly polarized light is reflected by the pixel electrode 120 inside the organic light emitting display panel 101 and is converted into left-handed circularly polarized light, and is then incident on the? / 4 wave plate 155 again.

The light incident on the? / 4 wave plate 155 is again linearly polarized to change the polarization state, but the optical axis is perpendicular to the linearly polarized light transmitted through the first color polarizing layer 150. Therefore, since the linearly polarized light axis of the reflected light is perpendicular to the light transmission axis of the color polarizing layer 150, the reflected light does not transmit through the color polarizing layer 150, and the reflection of the light incident from the outside can be removed .

Although only the color polarizing layer 150 and the λ / 4 wave plate 155 are formed on the outside of the display panel 101 in the drawing, only the color polarizing layer 150 is formed on the outside of the display panel 101, The wave plate 155 may be formed inside the display panel 101. At this time, the? / 4 wave plate 155 may be formed on the inner side of the second substrate 148 or on the common electrode 130. The λ / 4 wave plate 155 may be formed anywhere on the pixel electrode 120 in the display panel 101 because the λ / 4 wave plate 155 polarizes the light reflected by the pixel electrode 120 again.

As described above, according to the present invention, color can be realized by selectively transmitting light emitted from the organic light emitting portion 125 by stacking the color polarizing layer 150 on the outside of the display panel 101, It is possible to prevent the reflection of light and improve the visibility of the organic light emitting display device.

In the conventional organic electroluminescent display device, the color filter layer and the polarizing plate are separately disposed, whereas in the present invention, since the color filter layer and the polarizing plate are used, the manufacturing process can be simplified and the manufacturing cost can be reduced.

2 is a view illustrating a structure of an organic light emitting display device according to another embodiment of the present invention. The organic electroluminescent display device of this embodiment is the same as the structure shown in Fig. 1 except for the color polarizing layer 150, so that the same structure will be described briefly and only other structures will be described in detail.

2, a color polarizing layer 150 is formed inside the display panel 101 in this embodiment. That is, the? / 4 wave plate 155 and the color polarizing layer 150 are formed on the common electrode 130. The color polarizing layer 150 is made up of a host made of a reactive liquid crystal monomer (reactive mesogens) and a guest made of a dichroic dye. The reactive liquid crystal monomer is a liquid crystal substance including a terminal group capable of polymerization, and is a monomer molecule having a liquid crystal phase including a terminal capable of polymerization with a mesogen that exhibits liquid crystallinity. As the color polarizing layer 150 is applied, the host material is arranged along a certain direction. The dichroic dye absorbs one of the two polarization components of light and transmits the other component. Since the guest material is arranged along the host material when the host material is arranged in a certain direction, the guest material is also arranged in a specific direction.

In the organic electroluminescence display device having such a configuration, light of a wavelength band corresponding to R, G, and B colors is polarized and transmitted through light emitted from the organic light emitting portion 125 by a dichroic dye to realize color. The light incident from the outside is polarized into light in a specific direction in the color polarizing layer 150, circularly polarized by the? / 4 wave plate 155, and then incident into the organic light emitting display panel 101 The light is reflected by the pixel electrode 120 and then incident on the? / 4 wave plate 155 and the color polarizing layer 150, thereby eliminating reflection of external light, thereby improving visibility.

In the drawing, the λ / 4 wave plate 155 and the color polarizing layer 150 are formed on the common electrode 130, but the color polarizing layer 150 may be formed on the organic layer 142. The color polarizing layer 150 is formed to filter the white light emitted from the organic light emitting portion 125 to realize color and prevent reflection of light incident from the outside. Therefore, when the color polarizing layer 150 is formed only on the common electrode 130, .

For example, the lambda / 4 wave plate 155 and the color polarizing layer 150 may be formed on the second substrate 148 and then bonded to the first substrate 110 with an adhesive layer 1460. In the case where the? / 4 wave plate 155 and the color polarizing layer 150 are formed on the second substrate 148, a separate protective layer is preferably formed on the? / 4 wave plate 155 .

In addition, although the? / 4 wave plate 155 and the color polarizing layer 150 are successively laminated in the drawing, the? / 4 wave plate 155 and the color polarizing layer 150 need not be continuously laminated, / 4 wave plate 155 and the color polarizing layer 150 may be arranged.

As described above, in the present invention, the color polarizing layer 150 can be formed on the outside of the display panel 101, but also on the inside. As described above, the color polarizing layer 150 is disposed inside the display panel 101, so that the color polarizing layer 150 is not formed in a process different from the manufacturing process of the display panel 101, ), So that the manufacturing cost can be further reduced and the manufacturing process can be further simplified.

In the above description, only the structure in which the color polarizing layer is laminated on the outer side or the inner side of the display panel in film form is described, but the present invention is not limited to such a film form. In particular, when the color polarizing layer is provided outside the display panel, the color polarizing layer may be laminated on a separate substrate such as a film or a glass and attached to the outside of the display panel with an adhesive or the like. In this sense, the color polarizing layer of the present invention may be referred to as a color polarizing plate.

In this case, the lambda / 4 waveplate may be formed on the outside of the color polarizer (inside or outside the display panel) or directly on the color polarizer.

Meanwhile, the organic light emitting display device of the present invention is composed of a plurality of pixels that implement different colors in order to realize color, and will be described in detail below.

Figs. 3 (a) to 3 (c) are views showing a simplified structure of an organic electroluminescent display device having a structure in which a color polarizing layer is formed outside a display panel. At this time, only the substrate and color polarized light are shown in the drawings for convenience of explanation.

As shown in FIG. 3A, the organic light emitting display device of this structure includes R, G, and B pixels, and color polarizing layers 150 of R, G, and B are formed on the outer surface of the second substrate 148. In this case, each of the R, G, and B color polarizing layers 150 includes a reactive liquid crystal monomer as a host and includes R, G, and B dichroic dyes, respectively, so that when the reactive liquid crystal monomers are arranged in a predetermined direction The dichroic dye corresponding to the pixel is arranged along the reactive liquid crystal monomer so that the R, G, and B dichroic dyes are arranged in a specific direction.

When the white light is incident on the R, G, and B color polarizing layers 150, the light in the wavelength range is transmitted by the dyes arranged in the pixel layers, the light of the other wavelength is absorbed, , B of the color polarizing layer 150, and the desired color can be realized.

3B, the organic light emitting display device of this structure includes R, W, G, and B pixels to form color polarizing layers 150 of R, Black, G, and B on the outer surface of the second substrate 148, .

In this case, the R, G, and B color polarizing layers 150 contain reactive liquid crystal monomers and R, G, and B dichroic dyes so that the R, G, and B dichroic dyes are arranged in specific directions, A liquid crystal monomer and a black dichroic dye, and the black dichroic dye group is arranged in a specific direction.

The black dichromatic dye may be a mixture of R, G, and B dichroic dyes, and may be formed by mixing C, M, and Y dyes. When white light is incident on the black polarizing layer 150 in the case where R, G, and B dichroic dyes are mixed to form a black dichroic dye, light in a wavelength range corresponding to R, G, 150. The R, G, and B lights are mixed to form white light, so that a W pixel in which white light is output by the black polarization layer 150 is formed.

As shown in FIG. 3C, the W pixel may be formed by disposing a separate color polarizing layer 150. In this case, since the white light is transmitted as it is, a W pixel from which the white light is output is formed.

By providing the W pixel in addition to the R, G, and B pixels as described above, the brightness can be improved by the white light, and the image quality can be improved.

Figs. 4A to 4C are diagrams schematically showing an organic light emitting display device having a structure in which the color polarizing layer 150 is disposed inside the display panel 101. Fig.

As shown in FIG. 4A, in the organic EL display device having the structure, the display panel 101 is composed of R, G, and B pixels, and the R, G, and B color polarizing layers 150 are provided.

4B and 4C, the display panel 101 may include R, W, G, and B pixels and may include an R, Black, G, and B color polarizing layer 150 or a white light transmitting layer And R, G, and B color polarizing layers 150 may be provided.

As described above, in the present invention, since the color filter layer and the polarizing plate are formed as one layer, the manufacturing cost can be reduced and the manufacturing process can be simplified. In addition, since the OLED display device includes a separate color filter layer and a polarizer, the amount of light absorbed by the color filter layer and the polarizer is relatively large. In contrast, in the present invention, light absorption occurs only in one layer, The brightness of the display element can be improved.

The full white luminance of the organic light emitting display device is about 100 nits. In contrast, in the present invention, the luminance of full white is about 300 nits, and the luminance improvement of about 200 nits in the present invention is obtained do.

In addition, while the brightness of the peak white in the conventional organic light emitting display device is about 400 nits, in the present invention, the brightness of the peak white is about 800 nits, and the luminance improvement of about 400 nits in the present invention You get it.

On the other hand, the transmittance of the monochromatic light by the color polarizing layer of the present invention is improved as compared with the monochromatic transmittance of the color filter layer of the conventional organic electroluminescent display device. In the present invention, the transmittance of the R, G and B color filter layers is about 17.5%, whereas the transmittances of the R, G and B color filter layers are about 14.0%, 44.0% and 4.0% , 44.0% and 17.2% respectively. According to the present invention, the transmittance of light of the B color in the B color polarizing layer is remarkably improved. In addition, the degree of polarization of light by the color polarizing layer of the present invention is about 99.5% or more, which is similar to that of a conventional polarizing plate.

In other words, the organic electroluminescent display device according to the present invention maintains the polarization degree of the light similar to that of the conventional organic electroluminescent display device, but significantly improves the monochromatic transmittance and white light luminance, thereby improving the image quality compared with the conventional art.

In the above description, an organic electroluminescent display device having a specific structure is disclosed as an organic electroluminescent display device, but the present invention relates to an organic electroluminescent display device having such a specific structure. The present invention can be applied to an organic light emitting display device having all the structures including the color polarizing layer by including a color polarizing layer in the organic light emitting display panel.

110, 148: substrate 120: pixel electrode
122: buffer layer 123, 124, 126: insulating layer
125: organic light emitting part 128: bank layer
130: common electrode 142: organic layer
150: color polarizer 155:? / 4 wavelength plate

Claims (16)

A display panel including an organic light emitting portion emitting white light;
And a color polarizing layer arranged on the display panel to filter the white light to realize color, and to polarize light incident from the outside to remove light reflection. The organic light emitting display device according to claim 1, wherein the color polarizing layer is disposed outside the display panel. The organic light emitting display device according to claim 2, further comprising a? / 4 wave plate disposed between the color polarizer and the display panel. The organic light emitting display device according to claim 1, wherein the color polarizing layer is disposed inside the display panel. The organic light emitting display according to claim 4, wherein the color polarizing layer is disposed on the organic light emitting portion. The organic light emitting display device according to claim 4, further comprising a? / 4 wave plate disposed inside the display panel. The liquid crystal display device according to claim 1,
Reactive liquid crystal monomers (reactive mesogens); And
And a dichroic dye arranged along the reactive liquid crystal monomer. 8. The organic light emitting display according to claim 7, wherein the display panel includes R, G, and B pixels. The organic electroluminescent display device according to claim 8, wherein a color polarizing layer including R, G, and B dichroic dyes is disposed in each of the R, G, and B pixels. The organic light emitting display according to claim 7, wherein the display panel includes R, W, G, and B pixels. 11. The organic electroluminescent display device according to claim 10, wherein a color polarizing layer including R, Black, G and B dichroic dyes is disposed in each of the R, W, G and B pixels. Reactive liquid crystal monomers (reactive mesogens); And
And a coloring polarizer comprising a dichroic dye arranged along the reactive liquid crystal monomer and filtering incident white light in a specific color and polarizing the white light. The color polarizing plate according to claim 12, wherein the dichroic dye includes R (Red), G (Green), and B (Blue) dyes. The color polarizing plate according to claim 12, wherein the dichroic dye comprises a black dye. The color polarizing plate according to claim 12, wherein the dichroic dye comprises a cyan dye, a magenta dye, and a yellow dye. The color polarizer plate according to claim 12, further comprising a lambda / 4 wave plate.

Images