TW201541630A - Full color organic light-emitting diode structure and the manufacturing method thereof - Google Patents

Abstract

A full color organic light-emitting diode (OLED) structure and the manufacturing method thereof, the full color organic light-emitting diode structure comprises a TFT circuit layer, an OLED emitting layer and a cover glass disposed on the OLED emitting layer, the OLED emitting layer includes RGB trichromatic luminous bodies and RGB trichromatic filter films disposed on the RGB trichromatic luminous bodies, respectively. Such arrangements can solve the power consumption and poor efficiency problems of the current full color organic light-emitting diode structures.

Description

Full color organic light emitting diode structure and manufacturing method thereof

The invention relates to the field of organic light-emitting diodes, in particular to a full-color organic light-emitting diode structure and a manufacturing method thereof.

Organic Light-Emitting Diode (OLED) has self-luminous properties, using a very thin coating of organic materials and a glass substrate. When current passes, the organic material emits light, and the organic light-emitting diode displays The screen has a large viewing angle and can save significant power, so the application of organic light-emitting diodes is now more and more widely used.

The organic light-emitting diode realizes full-color display in three primary colors of RGB, and two methods can be mass-produced to realize a full-color organic light-emitting diode. As shown in FIG. 1, a schematic diagram of the structure of the first full color organic light emitting diode is shown. The first full-color organic light-emitting diode structure 10 includes a TFT circuit layer 101, and three primary color light-emitting bodies formed on the TFT circuit layer 101 are a red light-emitting body 102, a green light-emitting body 103, and a blue light-emitting body 104, respectively. And a cover glass 105 formed on the RGB three primary color illuminators. The red illuminator 102, the green illuminator 103, and the blue illuminator 104 are combined to emit light of various colors, but the first full color organic light emitting diode structure 10 is limited by the manufacturing ability, in order to avoid The color mixing phenomenon occurs between the three primary color illuminants, so the aperture ratio of the three primary color illuminants cannot be maximized, that is, there is a certain distance between the three illuminants, thereby greatly reducing the performance advantage of the organic luminescent diode. As shown in FIG. 2, a schematic diagram of a second full color organic light emitting diode structure is shown. The second full-color organic light-emitting diode structure 20 includes a TFT circuit layer 201, a white light-emitting layer 202 formed on the TFT circuit layer 201, an RGB three-primary color filter film formed on the white light-emitting layer 202, and formed on The cover glass 206 above the three primary color filter films. The RGB three primary color filter film includes a red filter film 203, a green filter film 204, and a blue filter film 205. The second full color organic light emitting diode structure 20 is simple in fabrication, and the openings of the RGB three primary color filter films are opened. The rate can be maximized, but since the brightness of the RGB three primary colors emitted by the white light after passing through the RGB three primary color filter film is not high, in order to maintain high brightness, it is necessary to increase the voltage, resulting in an increase in power consumption and a decrease in efficiency.

In view of this, the inventors have conceived and further studied, and finally invented a full-color organic light-emitting diode structure and a manufacturing method thereof.

The object of the present invention is to overcome the defects of the prior art, and provide a full-color organic light-emitting diode structure and a manufacturing method thereof, which can solve the problem that the existing full-color organic light-emitting diode structure can reduce the performance advantage of the organic light-emitting diode, and Increase power consumption and reduce efficiency.

A technical solution for achieving the above object is: a full color organic light emitting diode structure of the present invention, including a TFT a circuit layer, an OLED light-emitting layer disposed on the TFT circuit layer, and a cover glass disposed on the OLED light-emitting layer, the OLED light-emitting layer comprising RGB three primary color illuminants and correspondingly disposed on the RGB three primary color illuminants RGB three primary color filter film.

The RGB three primary color illuminator, that is, the red illuminant, the green illuminant, the blue illuminant and the RGB three primary color filter film, that is, the red filter film, the green filter film, and the blue filter film are combined, because of the RGB three primary color filter The film is disposed on the corresponding color illuminant, and the aperture ratio of the RGB three primary color illuminants can be maximized, because the mixed color can be filtered by the RGB three primary color filter film, thereby not affecting the performance advantages of the organic light emitting diode. . In addition, the mixed color is generated only at positions adjacent to the RGB three primary color illuminators, and the amount of mixed colors is very small, and can be filtered by the RGB three primary color filter film. A large amount of RGB three primary color light will pass through the RGB three primary color filter film, so that the RGB three primary color light has substantially no loss, so there is no need to increase the voltage to ensure the brightness, and the efficiency of the organic light emitting diode device is improved. By adopting the above technical solution, it is also possible to adjust the thickness of the corresponding RGB three primary color filter film to enhance the transparency and ensure the light intensity, thereby achieving a high-quality full-color effect.

A further improvement of the full color organic light emitting diode structure of the present invention is that any one of the RGB three primary color filter films is attached to one or both of the adjacent RGB three primary color illuminants.

A further improvement of the full color organic light emitting diode structure of the present invention is that the thickness of the RGB three primary color illuminators is different.

A further improvement of the full color organic light emitting diode structure of the present invention is that any two adjacent RGB three primary color illuminators comprise coincident regions that form a mixed color.

A further improvement of the full color organic light emitting diode structure of the present invention is that the thickness of the RGB three primary color filter film is different.

A further improvement of the full color organic light emitting diode structure of the present invention is that the thickness of the RGB three primary color filter film is the quarter wavelength of the transmitted light of the RGB three primary color filter film divided by the refractive index of the RGB three primary color filter film.

A method for fabricating a full-color organic light-emitting diode structure comprises the steps of: preparing a red light-emitting body, a green light-emitting body, and a blue light-emitting body on a TFT circuit layer to form an RGB three-primary color light-emitting body; A red filter film is prepared on the body, a green filter film is prepared on the green light body, and a blue filter film is prepared on the blue light body to form an RGB three primary color filter film; the red filter film is formed on the blue light emitter A cover glass is prepared on the green filter film and the blue filter film.

The method for fabricating the full-color organic light-emitting diode structure of the present invention further comprises: preparing the RGB three primary color filter film portion on the adjacent RGB three primary color filter film.

A method for manufacturing a full-color organic light-emitting diode structure includes the following steps: Preparing a red illuminant, a green illuminant, and a blue illuminant on the TFT circuit layer to form RGB three primary color illuminants; preparing a red filter film, a green filter film, and a blue filter film on the bottom surface of the cover glass; The RGB three primary color filter film is formed; the RGB three primary color filter film is disposed on the corresponding RGB three primary color illuminants, and the above structure is packaged.

The method for fabricating the full-color organic light-emitting diode structure of the present invention further includes: when the RGB three-primary color light-emitting body is prepared, any two adjacent RGB three primary color light-emitting bodies include overlapping regions, and the overlapping regions form a mixed color. .

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

[study]

10‧‧‧Full color organic light emitting diode structure

101‧‧‧TFT circuit layer

102‧‧‧Red Luminescent

103‧‧‧Green emitter

104‧‧‧Blue illuminant

105‧‧‧ Cover glass

20‧‧‧Second full color organic light emitting diode structure

201‧‧‧TFT circuit layer

202‧‧‧White light emitting layer

203‧‧‧Red filter film

204‧‧‧Green filter film

205‧‧‧Blue filter film

206‧‧‧ Cover glass

〔this invention〕

30‧‧‧Full color organic light emitting diode structure

301‧‧‧TFT circuit layer

302‧‧‧Red Luminescent

303‧‧‧Green emitter

304‧‧‧Blue Luminescent

305‧‧‧Red filter film

306‧‧‧Green filter film

307‧‧‧Blue filter film

308‧‧‧ Cover glass

S1‧‧‧Preparation of RGB illuminators on the TFT circuit layer

S2‧‧‧Preparation of RGB filter film on RGB illuminator

S3‧‧‧Preparation of cover glass on RGB filter film

1 is a schematic view showing the structure of a first full-color organic light-emitting diode in the prior art; FIG. 2 is a schematic view showing a structure of a second full-color organic light-emitting diode in the prior art; FIG. 3 to FIG. A schematic structural view of a preferred embodiment of an organic light emitting diode structure; and FIG. 12 is a flow chart of a method for fabricating a full color organic light emitting diode structure of the present invention.

The present invention is further developed in conjunction with the accompanying drawings and specific embodiments. Description.

Please refer to FIG. 3 , which is a structural schematic diagram of a preferred embodiment of a full color organic light emitting diode structure of the present invention. The full-color organic light-emitting diode of the invention adopts a technical scheme combining RGB three primary color illuminants and RGB three primary color filter films to realize full color display. The aperture ratio of the RGB three primary color illuminators can be maximized, and the illuminance brightness is increased. The RGB three primary color filter films can filter out the mixed colors, and the mixed colors are generated only at positions adjacent to the RGB three primary color illuminators, and the amount of mixed colors is very large. Less, does not affect the brightness of the overall RGB three primary colors. A large amount of primary color light passes through the RGB three primary color filter film, which effectively ensures the light output rate of the RGB three primary color lights, and also improves the color purity of the RGB three primary color lights. Generally, the present invention has the effects of reducing power consumption and improving efficiency. Compared with the prior art, the problems existing in the existing structure are solved, and the technical solution of the present invention is simple to manufacture, which can improve product yield and reduce cost. The full color organic light emitting diode structure of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 3, a preferred embodiment of the full color organic light emitting diode structure of the present invention is disclosed. The full color organic light emitting diode structure 30 includes a TFT circuit layer 301 and an OLED disposed on the TFT circuit layer 301. a light emitting layer and a cover glass 308 disposed on the OLED light emitting layer.

The OLED illuminating layer includes RGB three primary color illuminators and RGB three primary color filter films respectively disposed on the RGB three primary color illuminators, and the RGB three primary color illuminants are red illuminators 302, green illuminants 303, and blue illuminants. 304, RGB three primary color filter film is red filter film 305, The green filter film 306 and the blue filter film 307.

The red illuminator 302, the green illuminator 303, and the blue illuminator 304 are disposed on the TFT circuit layer 301, wherein the green illuminator 303 is disposed between the red illuminator 302 and the blue illuminator 304, and the green illuminator 303 Abutting the red illuminator 302 and the blue illuminator 304 on both sides, the aperture ratio of the RGB three primary illuminants is maximized. Further, the arrangement of the RGB three primary color illuminators may be such that the red illuminator 302 is disposed between the green illuminator 303 and the blue illuminator 304, or the blue illuminator is disposed between the red illuminator 302 and the green illuminator 303. In the present embodiment, the RGB three primary color illuminators have the same thickness, and any two adjacent RGB three primary illuminants are in contact with each other. The red illuminator 302, the green illuminant 303, and the blue illuminator 304 have the same length, that is, the aperture ratio is the same. It is ensured that the red light, the green light, and the blue light emitted by the red light body 302, the green light body 303, and the blue light body 304 have the same light intensity and chromaticity to ensure a color effect.

The RGB three primary color filter films are respectively disposed on the RGB three primary color illuminators, that is, the red filter film 305 is disposed on the red illuminator 302, and the green filter 306 is disposed on the green illuminator 303. The blue filter film 307 is attached to the blue illuminator 304. As shown in FIG. 3, since the green light-emitting body 303 is disposed between the red light-emitting body 302 and the blue light-emitting body 304, and the green light-emitting body 303 abuts against the red light-emitting body 302 and the blue light-emitting body 304 on both sides, The green filter film 306 is also disposed between the red filter film 305 and the blue filter film 307, and the green filter film 306 abuts against the red filter film on both sides. 305 and blue filter film 307. The thick film between the red filter film 305, the green filter film 306, and the blue filter film 307 may be different. By adjusting different film thicknesses, the red filter film 305, the green filter film 306, and the blue color may be made. The filter film 307 functions as an antireflection film to increase the light extraction rate. The thickness of the RGB three primary color filter film can be selected according to the optical principle, and the thickness formula of the optimal light transmittance of the filter film is: n*d=λ*1/4, where n is the refractive index of the RGB three primary color filter film, d is the thickness of the RGB three primary color filter film, and λ is the wavelength of the transmitted light of the RGB filter film. That is, the thickness of the RGB three primary color filter film is the quarter wavelength of the transmitted light of the RGB three primary color filter film divided by the refractive index of the RGB three primary color filter film. It can be seen that the refractive index of the RGB three primary color filter film is determined according to the material of the film, so it is necessary to select a material having a relatively high refractive index to form a filter film, so that the thickness d can be thinned. After the RGB three primary color filter material is selected, its refractive index is also a fixed value. The thickness d of the RGB three primary color filter film is calculated according to the wavelength of the light transmitted through it, and the RGB three primary color filter film having the thickness d has the best increase. Translucent effect. According to the above formula, the thickness of the red filter film 305 is obtained by dividing the quarter wavelength of the red light by the refractive index of the red filter film 305, and the thickness of the green filter film 306 is divided by the quarter wavelength of the green light. The refractive index of the green filter film 306 is obtained, and the thickness of the blue filter film 307 is obtained by dividing the quarter wavelength of the blue light by the refractive index of the blue filter film 307. The wavelength of red light is the longest in the RGB three primary colors, so the red filter film 305 is thicker than the green filter film 306 and the blue filter film 307, and the wavelength of the blue light is the shortest among the RGB three primary colors, so the blue filter film 307 It is thinner than the red filter film 305 and the green filter film 306.

By adopting a filter film of a corresponding color on the corresponding color illuminator, the aperture ratio of the illuminant can be maximized, and increasing the aperture ratio can increase the illuminance, reduce power consumption, and improve efficiency. The filter film of different thickness and corresponding color can increase the purity and light extraction rate of the primary color light. The full color display structure has a simple structure, can improve the product yield, reduce the production cost, and can also improve the screen resolution.

As shown in FIG. 4, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. The difference between the embodiment and the embodiment shown in FIG. 3 is that a small portion of the RGB three primary color filter film is attached to the adjacent RGB three primary color filter film. As shown in FIG. 4, the red filter film 305 has a small size. Partially attached to the green filter film 306, a small portion of the green filter film 306 is attached to the blue filter film 307, and a small portion is attached to the adjacent RGB three primary color filter film. In this case, it is ensured that the mixed colors generated at the adjacent RGB three primary color illuminants are completely filtered out.

As shown in FIG. 5, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. The difference between the embodiment and the embodiment shown in FIG. 3 is that the RGB three primary color illuminants partially overlap. Including the overlapping region, as shown in FIG. 5, the red illuminator 302 is partially attached to the green illuminant 303, and the green illuminator 303 is partially attached to the blue illuminator 304. The partial bonding regions are coincident. The area where the mixed area produces a mixed color. A green filter film 306 is attached to the overlapping area of the red illuminant 302 and the green illuminant 303, and the mixed color is filtered by the green filter 306. Except that, similarly, the mixed color produced by the overlapping region between the green illuminant 303 and the blue illuminator 304 is filtered by the blue filter film 307 thereon.

As shown in FIG. 6, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. The difference between the embodiment and the embodiment shown in FIG. 5 is that the RGB three primary color filter film has a small portion of the sticker. On the adjacent RGB three primary color filter film, as shown in FIG. 6, a small portion of the red filter film 305 is attached to the green filter film 306, and a small portion of the green filter film 306 is attached to the blue. Above the color filter film 307, a small portion is attached to the adjacent RGB three primary color filter film to ensure complete filtering of the mixed color generated at the adjacent RGB three primary color illuminators.

As shown in FIG. 7, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. The difference between the present embodiment and the embodiment shown in FIG. 3 is that the thickness of the RGB three primary color illuminators is different.

As shown in FIG. 8, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. The difference between the embodiment and the embodiment shown in FIG. 7 is that the RGB three primary color filter film has a small portion of the sticker. On the adjacent RGB three primary color filter film, as shown in FIG. 8, a small portion of the red filter film 305 is attached to the green filter film 306, and a small portion of the green filter film 306 is attached to the blue layer. Above the color filter film 307, a small portion is attached to the adjacent RGB three primary color filter film to ensure complete filtering of the mixed color generated at the adjacent RGB three primary color illuminators.

As shown in FIG. 9, the full color organic light emitting diode of the present invention is shown. Another preferred embodiment of the structure, the difference between the embodiment and the embodiment shown in FIG. 7 is that the RGB three primary color illuminators partially overlap and include overlapping regions. As shown in FIG. 9, the green illuminant 303 is partially attached. A first merging area is formed in the red illuminator 302. A red illuminator 302 is disposed on the first contiguous area, and the first contiguous area is formed with a mixed color. The blue illuminator 304 is partially adhered to the green illuminant 303, and is formed with a second overlapping area. The second overlapping area is provided with a green illuminating body 303, and the second overlapping area is formed with a mixed color. The mixed colors generated at the first coincidence region and the second coincidence region are filtered out by the RGB three primary color filter membranes disposed thereon.

As shown in FIG. 9, another preferred embodiment of the full-color organic light-emitting diode structure of the present invention is shown. The thickness and length of the RGB three-primary light-emitting body are different, wherein the blue light-emitting body 304 is the thinnest and longest, followed by The green light emitting body 303 has the thickest and shortest is the red light emitting body 302. The RGB three primary color light emitting body has a structure in which a small portion of the green light emitting body 303 is attached to the red light emitting body 302, and the bonding portion forms the first. The overlapping area, above the first overlapping area is a red illuminator 302, in which a mixed color is produced. The blue illuminator 304 is attached to the green illuminator 303 at a small portion of the end portion, and the affixing portion forms a second overlapping region. The upper portion of the overlapping region is a green illuminating body, and a mixed color is generated in the second overlapping region. . The thickness and length of the RGB three primary color filter films are also different, and the thickness is selected in accordance with the thickness formula described above, wherein the red filter film 305 is thickest and longest, followed by the green filter film 306, and the blue filter film 307 is the most The thinnest is thin, the red filter film 305 is attached to the red illuminant Above 302, a small portion is attached to the adjacent green filter film 306. The red filter film 305 filters out the mixed colors produced by the first coincident regions. Moreover, since a small portion of the red filter film 305 is attached to the green filter film 306, no light is filtered out at the small portion of the red filter film 305, and the green filter film 306 filters out the green light. The green light is filtered through a small portion of the red filter 305 described above. The filter film is disposed in such a manner as to ensure complete filtering of the mixed color light. The green filter film 306 is attached to the green illuminant 303, and a small portion is also attached to the adjacent blue filter film 307, where the green filter film 306 is attached to the blue filter. The principle above the film 307 is more than the above-mentioned red filter film 305 adhered to the green filter film 306. The blue filter film 307 is bonded to the blue illuminator 304. In this embodiment, the RGB three primary color filter film is partially adhered to the filter film of the adjacent color, which can ensure complete filtering of the mixed color and ensure the color purity of the light.

As shown in Fig. 11, another preferred embodiment of the full color organic light emitting diode structure of the present invention is shown. In the present embodiment, the RGB three primary color filter films are provided on the back surface of the cover glass 308, and then packaged together with the RGB three primary color illuminants provided on the TFT circuit layer 301. As shown in FIG. 11, a small portion of the RGB three primary color filter films are disposed above the adjacent RGB three primary color illuminators, and a small portion of the red filter film 305 is disposed above the green filter film 303, and the green filter is disposed. A small portion of the light film 306 is disposed above the blue light-emitting body 304 to ensure complete filtering of the mixed colors generated adjacent to the RGB three primary color light-emitting bodies. In this embodiment, since the RGB three primary color filter film has a part Bonding to adjacent RGB three primary color illuminants allows the RGB three primary color filter to completely filter out the mixed colors of the three primary colors. In addition, according to the bonding structure of the embodiment, the RGB three primary color filter film can be attached to the back surface of the cover glass 308, and the RGB three primary color illuminants are disposed on the TFT circuit layer, and then the two are packaged to form a full color. Organic light-emitting diodes. According to the structure, a plurality of different embodiments can be made, and the manners of the RGB three primary color filter films and the RGB three primary color illuminators described in the above-mentioned FIGS. 3 to 10 can be omitted, and details are not described herein again.

Please refer to FIG. 12, which is a flow chart of a method for fabricating a full color organic light emitting diode structure of the present invention. The method for fabricating the full-color organic light-emitting diode structure of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 12, the method for fabricating the full color organic light emitting diode structure includes the following steps:

Step S1 is performed, and as shown in FIG. 3, RGB three primary color illuminators are prepared on the TFT circuit layer, that is, a red illuminator 302, a green illuminant 303, and a blue illuminator 304 are prepared, wherein the green illuminant 303 is disposed in the red illuminant. Between the 302 and the blue illuminator 304, the green illuminator 303 abuts the red illuminator 302 and the blue illuminator 304 on both sides, so that the aperture ratio of the RGB three primary illuminants is maximized. The arrangement of the RGB three primary color illuminators may be such that the red illuminator 302 is disposed between the green illuminator 303 and the blue illuminator 304 or the blue illuminator 304 is disposed between the red illuminator 302 and the green illuminator 303. The method of preparing the RGB three primary color illuminants may be performed by an evaporation process or by a sputtering process or a printing technique. As a preferred embodiment of the present invention In the formula, the lengths of the prepared red illuminant 302, the green illuminant 303, and the blue illuminator 304 are the same, and the same light intensity and chromaticity can be ensured to ensure the color effect. As another preferred embodiment of the present invention, the lengths between the red illuminator 302, the green illuminator 303, and the blue illuminator 304 are different. As still another preferred embodiment of the present invention, the thickness and length of the red illuminator 302, the green illuminator 303, and the blue illuminator 304 are different. Then step S2 is performed.

Step S2 is performed to prepare an RGB three primary color filter film on the RGB three primary color illuminators, that is, a red filter film 305 is prepared on the red illuminant 302, and a green filter film 306 is prepared on the green illuminant 303. A blue filter film 307 is prepared over the illuminator 304. The preparation method used may be an evaporation process or a sputtering or printing technique to form an RGB three primary color filter film. As a preferred embodiment of the present invention, the lengths of the RGB three primary color filter films are different, and in the preparation process, the RGB three primary color filter films are disposed on the adjacent filter films to ensure complete filtering of the mixed colors. As another preferred embodiment of the present invention, the RGB three primary color filter films have the same length and are attached to the RGB three primary color illuminators of different lengths, and a small portion of the RGB three primary color filter films are attached to the adjacent RGB three primary colors. Above the illuminator, it is guaranteed to completely filter out the mixed colors. The RGB three primary color filter film can filter out the mixed colors of the RGB three primary color illuminants. Therefore, the light emitted from the RGB three primary color illuminators passes through the RGB three primary color filter films, and the light is the three primary colors, and there is no mixed color. In addition, the mixed color is generated at the position adjacent to the RGB three primary color illuminators, and only a very small amount of mixed colors are generated. After filtering out the RGB three primary color filter membranes, there is basically no loss of light quantity, so the RGB three primary color filter film is disposed on the corresponding RGB three primary color illuminants, which can have good color purity and light extraction rate, and ensure the color saturation of the screen. , to ensure the color effect, improve the screen resolution. The thick film between the red filter film 305, the green filter film 306, and the blue filter film 307 may be different. By adjusting different film thicknesses, the red filter film 305, the green filter film 306, and the blue color may be made. The filter film 307 functions as an antireflection film to increase the brightness of the light.

The thickness of the RGB three primary color filter film can be selected according to the optical principle. The thickness of the optimal light transmittance of the filter film is: n*d=λ *1/4, where n is the refractive index of the RGB three primary color filter film, d It is the thickness of the RGB three primary color filter film, and λ is the wavelength of the light transmitted by the RGB filter film. That is, the thickness of the RGB three primary color filter film is the quarter wavelength of the transmitted light of the RGB three primary color filter film divided by the refractive index of the RGB three primary color filter film. The refractive index of the RGB three primary color filter film is determined according to the material of the film, so it is necessary to select a material having a relatively high refractive index to form a filter film, so that the thickness d can be thinned. After the RGB three primary color filter material is selected, its refractive index is also a fixed value. The thickness d of the RGB three primary color filter film is calculated according to the wavelength of the light transmitted through it, and the RGB three primary color filter film having the thickness d has the best increase. Translucent effect. According to the above formula, the thickness of the red filter film 305 is obtained by dividing the quarter wavelength of the red light by the refractive index of the red filter film 305, and the thickness of the green filter film 306 is divided by the quarter wavelength of the green light. The refractive index of the green filter film 306 is obtained, and the thickness of the blue filter film 307 is obtained by dividing the quarter wavelength of the blue light by the refractive index of the blue filter film 307. The wavelength of red light is the longest in the RGB three primary colors, so the red filter film 305 is thicker than the green filter film 306 and the blue filter film 307, and the wavelength of the blue light is the shortest among the RGB three primary colors, so the blue filter film 307 It is thinner than the red filter film 305 and the green filter film 306. Then step S3 is performed.

Step S3 is performed to prepare a cover glass 308 on the RGB three primary color filter film. The cover glass 308 may be glued to the three primary color filter films, or may be formed on the RGB three primary color filter films by a press-bonding process. Thus, the full color organic light emitting diode of the present invention is formed. The whole production method is simple, and the process requirements for each step are not high, so the product yield can be improved and the production cost can be reduced.

Another preferred embodiment of the present invention, in combination with the above method, is different from the above method in that RGB three primary color illuminators are prepared on the TFT circuit layer 301, and then RGB three primary color filter films are prepared on the cover glass 308. Above, the above two structures are finally packaged together to form the full color organic light emitting diode structure of the present invention. Similarly, the RGB three primary color filter film is disposed on the corresponding RGB three primary color illuminators. Since the thickness of the RGB three primary color filter films is different, a gap is formed between the RGB three primary color filter film and the RGB three primary color illuminators, but the gap is formed. Does not affect the light extraction rate of the filter film and the filter effect.

The utility model has the beneficial effects of the full-color organic light-emitting diode structure and the manufacturing method thereof: the combination of the RGB three primary color illuminants and the RGB three primary color filter films can maximize the aperture ratio of the RGB three primary color illuminants. Opening When the rate is maximized, the RGB three primary color illuminators will produce a small amount of mixed color at adjacent positions, and the small amount of mixed colors will be filtered by the RGB three primary color filter film. Since there is only a small amount of mixed colors, the RGB is basically not affected. The illuminating amount of the three primary color illuminants, the light transmitted by the RGB three primary color filter films is RGB three primary colors, thus ensuring the performance advantages of the organic light emitting diode. The RGB three primary color illuminators have the largest aperture ratio, which increases the amount of luminescence, and ensures the brightness of the light emitted through the RGB three primary color filter films. Compared with the second full-color organic light-emitting diode structure in the prior art, no voltage is required. Can effectively reduce power consumption and improve efficiency. RGB three primary color filter films can be used to enhance the transparency by setting different thicknesses, ensuring the light output rate of RGB three primary colors and increasing the color purity of RGB three primary colors. In addition, the manufacturing method of the invention is simple, and the process requirements are not high, and the resolution of the screen and the yield of the product can be improved, and the cost can be reduced.

The present invention has been described in detail above with reference to the embodiments of the drawings, and various modifications of the invention can be made by those skilled in the art in light of the above description. Therefore, some of the details of the embodiments are not to be construed as limiting the scope of the invention, which is defined by the appended claims.

From the above, it is known that the present invention truly conforms to "industrial availability," "novelty," and "progressiveness", and submits an invention patent application in accordance with the law, praying for review and early granting of a patent, and it is truly sensible.

30‧‧‧Full color organic light emitting diode structure

301‧‧‧TFT circuit layer

302‧‧‧Red Luminescent

303‧‧‧Green emitter

304‧‧‧Blue Luminescent

305‧‧‧Red filter film

306‧‧‧Green filter film

307‧‧‧Blue filter film

308‧‧‧ Cover glass

Claims (10)

A full-color organic light-emitting diode structure includes: a TFT circuit layer, an OLED light-emitting layer disposed on the TFT circuit layer, and a cover glass disposed on the OLED light-emitting layer, wherein the OLED light-emitting layer includes RGB The three primary color illuminators and the RGB three primary color filter films respectively disposed on the RGB three primary color illuminants. The full color organic light emitting diode structure according to claim 1, wherein any one of the RGB three primary color filter films is attached to one or two adjacent RGB three primary color illuminants. The full-color organic light-emitting diode structure according to claim 2, wherein the RGB three primary color illuminants have different thicknesses. The full-color organic light-emitting diode structure according to claim 3, wherein any two adjacent RGB three primary color illuminators comprise overlapping regions, and the overlapping regions form a mixed color. The full-color organic light-emitting diode structure according to any one of claims 1 to 4, wherein the RGB three primary color filter films have different thicknesses. The full-color organic light-emitting diode structure according to claim 5, wherein the thickness of the RGB three primary color filter film is a quarter wavelength of the transmitted light of the RGB three primary color filter film divided by the RGB three primary color filter. The refractive index of the light film. A method for fabricating a full-color organic light-emitting diode structure, comprising the steps of: (a) preparing a red light-emitting body, a green light-emitting body, and a blue light-emitting body on the TFT circuit layer to form an RGB three-primary color light-emitting body; b) preparing a red filter film on the red illuminant, where the green illuminating a green filter film is prepared on the body, a blue filter film is prepared on the blue illuminant to form an RGB three primary color filter film; and (c) the red filter film, the green filter film, the blue A cover glass is prepared on top of the color filter film. The method for fabricating a full-color organic light-emitting diode structure according to claim 7 , further comprising: preparing the RGB three primary color filter film portion on the adjacent RGB three primary color filter film. A method for fabricating a full-color organic light-emitting diode structure, comprising the steps of: (a) preparing a red light-emitting body, a green light-emitting body, and a blue light-emitting body on the TFT circuit layer to form an RGB three-primary color light-emitting body; b) preparing a red filter film, a green filter film, and a blue filter film on the bottom surface of the cover glass to form an RGB three primary color filter film; (c) setting the RGB three primary color filter film to the corresponding RGB three primary color illuminant Above, the above structure is packaged. The method for fabricating a full-color organic light-emitting diode structure according to claim 9 , further comprising: when the RGB three primary color illuminators are prepared, any two adjacent RGB three primary color illuminators include overlapping regions. The overlapping area forms a mixed color.