阅读说明：本技术 子像素结构、有机发光二极管显示屏及其制造方法 (Sub-pixel structure, organic light emitting diode display screen and manufacturing method thereof ) 是由 龚文亮 于 2019-08-20 设计创作，主要内容包括：一种子像素结构、有机发光二极管显示屏及其制造方法。所述子像素结构包括封装段子像素结构及设置在所述封装段子像素结构的出光面上的彩膜,其中所述彩膜为半球形,以达到降低有机发光二极管显示屏厚度,提升有机发光二极管显示屏出光率,回避彩膜制程中曝光、显影、后烘烤制程的负面影响以及不需设置偏光片亦能有效地降低强光下的反射率的效果。(A sub-pixel structure, an organic light emitting diode display panel and a method for manufacturing the same are provided. The sub-pixel structure comprises a packaging section sub-pixel structure and a color film arranged on a light-emitting surface of the packaging section sub-pixel structure, wherein the color film is hemispherical, so that the effects of reducing the thickness of the organic light-emitting diode display screen, improving the light-emitting rate of the organic light-emitting diode display screen, avoiding the negative effects of exposure, development and post-baking processes in the color film manufacturing process and effectively reducing the reflectivity under strong light without arranging a polarizer are achieved.)

1. A sub-pixel structure, comprising:

packaging the segment sub-pixel structure; and

and the color film is arranged on the light-emitting surface of the sub-pixel structure of the packaging section, and is hemispherical.

2. The sub-pixel structure of claim 1, further comprising a black matrix disposed on the light-emitting surface of the other portion of the sub-pixel structure of the package segment where the color film is not disposed.

3. An organic light emitting diode display panel, comprising:

the organic light emitting diode panel comprises a red sub-pixel structure, a green sub-pixel structure and a blue sub-pixel structure;

the red color film is arranged on the light emitting surface of the red sub-pixel structure and is hemispherical;

the green color film is arranged on the light emitting surface of the green sub-pixel structure and is hemispherical; and

and the blue color film is arranged on the light-emitting surface of the blue sub-pixel structure and is hemispherical.

4. The organic light emitting diode display screen of claim 3, further comprising a black matrix, wherein the black matrix is disposed on the light-emitting surface of the other portion of the package segment organic light emitting diode panel where the red color film, the green color film and the blue color film are not disposed.

5. The organic light emitting diode display screen of claim 3, wherein the red color film, the green color film and the blue color film comprise a red ink layer, a green ink layer and a blue ink layer, respectively.

6. The organic light emitting diode display screen of claim 3, wherein the black matrix comprises a layer of black ink.

7. A method for manufacturing an organic light emitting diode display screen, comprising:

providing a packaging section organic light emitting diode panel, wherein the packaging section organic light emitting diode panel comprises a red sub-pixel structure, a green sub-pixel structure and a blue sub-pixel structure;

a hemispherical red color film is arranged on the light-emitting surface of the red sub-pixel structure;

a hemispherical green color film is arranged on the light-emitting surface of the green sub-pixel structure; and

and arranging a hemispherical blue color film on the light-emitting surface of the blue sub-pixel structure.

8. The method according to claim 7, wherein after the red color film, the green color film, and the blue color film are formed, a black matrix is formed on the light-emitting surface of the other portion of the package-segment organic light-emitting diode panel where the red color film, the green color film, and the blue color film are not formed.

9. The method as claimed in claim 7, wherein the red color film, the green color film and the blue color film are disposed on the light-emitting surface of the red sub-pixel structure, the light-emitting surface of the green sub-pixel structure and the light-emitting surface of the blue sub-pixel structure by inkjet printing.

10. The method of claim 8, wherein the black matrix is disposed on the light-emitting surface of the other portion of the package segment oled panel not having the red color filter, the green color filter, and the blue color filter by inkjet printing.

[ technical field ] A method for producing a semiconductor device

The disclosure relates to the field of display technologies, and in particular to a sub-pixel structure, an organic light emitting diode display screen and a manufacturing method thereof.

[ background of the invention ]

In the prior art, in order to meet the operation requirement of an organic light-emitting diode (OLED) display, a polarizer is usually disposed to reduce the reflectivity of the display under strong light.

However, although the reflectivity of the panel under strong light can be reduced by disposing the polarizer, the light emitted from the oled display is also greatly lost, which greatly increases the burden of the oled display and reduces the service life of the display. On the other hand, the polarizer has large thickness and brittle material, which is not beneficial to the development of dynamic bending products.

Therefore, there is a need to provide a new sub-pixel structure, an organic light emitting diode display panel and a method for manufacturing the same to solve the problems of the prior art.

[ summary of the invention ]

In order to solve the above problems, the present disclosure provides a sub-pixel structure, an organic light emitting diode display panel and a method for manufacturing the same, which can achieve the effects of reducing the thickness of the organic light emitting diode display panel, increasing the light extraction rate, avoiding the negative effects of the exposure, development and post-baking processes in the color film process, and effectively reducing the reflectivity of the organic light emitting diode display panel under strong light without the need of a polarizer.

To achieve the above objects, the present disclosure provides a sub-pixel structure, which includes a package segment sub-pixel structure; and the color film is arranged on the light-emitting surface on the upper surface of the sub-pixel structure of the packaging section, and is hemispherical.

In an embodiment of the disclosure, the sub-pixel structure further includes a black matrix, and the black matrix is disposed on the light-emitting surface of the other portion of the sub-pixel structure of the package section where the color film is not disposed.

In order to achieve the above object, the present disclosure further provides an oled display, including a package segment oled panel, where the package segment oled panel includes a red sub-pixel structure, a green sub-pixel structure and a blue sub-pixel structure; the red color film is arranged on the light emitting surface of the red sub-pixel structure and is hemispherical; the green color film is arranged on the light emitting surface of the green sub-pixel structure and is hemispherical; and the blue color film is arranged on the light-emitting surface of the blue sub-pixel structure, and is hemispherical.

In an embodiment of the present disclosure, the organic light emitting diode display further includes a black matrix, and the black matrix is disposed on the light emitting surfaces of other portions of the package segment organic light emitting diode panel where the red color film, the green color film, and the blue color film are not disposed.

In an embodiment of the present disclosure, the red color film, the green color film and the blue color film respectively include a red ink layer, a green ink layer and a blue ink layer.

In one embodiment of the present disclosure, the black matrix includes a black ink layer.

To achieve the above object, the present disclosure further provides a method for manufacturing an organic light emitting diode display panel, which includes providing a package segment organic light emitting diode panel including a red sub-pixel structure, a green sub-pixel structure and a blue sub-pixel structure; a hemispherical red color film is arranged on the light-emitting surface of the red sub-pixel structure; a hemispherical green color film is arranged on the light-emitting surface of the green sub-pixel structure; and arranging a hemispherical blue color film on the light-emitting surface of the blue sub-pixel structure.

In an embodiment of the disclosure, after the red color film, the green color film, and the blue color film are disposed, a black matrix is disposed on light-emitting surfaces of other portions of the package-segment organic light-emitting diode panel where the red color film, the green color film, and the blue color film are not disposed.

In an embodiment of the disclosure, the red color film, the green color film, and the blue color film are disposed on the light emitting surface of the red sub-pixel structure, the light emitting surface of the green sub-pixel structure, and the light emitting surface of the blue sub-pixel structure by an inkjet printing method.

In an embodiment of the disclosure, the black matrix is disposed on the light emitting surfaces of the other portions of the package segment organic light emitting diode panel where the red color film, the green color film and the blue color film are not disposed by an inkjet printing method.

Due to the sub-pixel structure, the organic light emitting diode display screen and the manufacturing method thereof provided by the disclosure. The sub-pixel structure comprises a packaging section sub-pixel structure and a color film arranged on a light-emitting surface on the upper surface of the packaging section sub-pixel structure, wherein the color film is hemispherical. The thickness of the organic light emitting diode display screen is reduced, the light-emitting rate of the organic light emitting diode display screen is improved, the negative effects of exposure, development and post-baking processes in a color film manufacturing process are avoided, and the reflectivity under strong light can be effectively reduced without arranging a polarizer.

In order to make the aforementioned and other aspects of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below:

[ description of the drawings ]

FIG. 1 is a block diagram illustrating a package segment subpixel architecture according to one embodiment of the present disclosure;

FIG. 2 is a block diagram illustrating a sub-pixel structure according to an embodiment of the present disclosure;

FIG. 3 is a block diagram illustrating a sub-pixel structure according to an embodiment of the present disclosure;

FIG. 4 is a block diagram of an OLED display panel according to an embodiment of the present disclosure;

FIG. 5 is a block diagram of an OLED display panel according to an embodiment of the present disclosure;

FIG. 6 is a block diagram of an OLED display panel according to an embodiment of the present disclosure;

FIG. 7 is a flow chart illustrating a method for fabricating an OLED display according to an embodiment of the present disclosure.

[ detailed description ] embodiments

The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the disclosure may be practiced. Directional phrases used in this disclosure, such as [ upper ], [ lower ], [ front ], [ back ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terms used are used for the purpose of illustration and understanding of the present disclosure, and are not used to limit the present disclosure.

In the drawings, elements having similar structures are denoted by the same reference numerals.

Referring to fig. 1, a block diagram of a package segment sub-pixel structure according to an embodiment of the disclosure is shown. In the embodiment of FIG. 1, the package segment sub-pixel structure 10 includes a substrate PI, a buffer layer BUF disposed on the substrate, an active layer ACT disposed on the buffer layer BUF, a first gate electrode GE-1 disposed on the active layer, a second gate electrode GE-2 disposed on the first gate electrode GE-1, a first gate dielectric layer GI-1 disposed on the buffer layer BUF, a second gate dielectric layer GI-2 disposed on the first gate dielectric layer GI-1, a first interlayer insulating layer ILD-1 disposed on the second gate dielectric layer GI-2, a second interlayer insulating layer ILD-2 disposed on the first interlayer insulating layer ILD-1, a planarization layer PLN disposed on the second interlayer insulating layer ILD-2, a pixel definition layer PDL disposed on the planarization layer PLN, a silicon nitride layer SiN disposed on the pixel definition layer PDL, An ink jet print layer IJP provided on the silicon nitride layer SiN, a silicon nitride layer SiN provided on the ink jet print layer, an electrode node provided between the pixel defining layer PDL and the planarizing layer PLN, and a light emitting layer EML provided above the electrode node. The package segment sub-pixel structure 10 disclosed in fig. 1 is only an example of a package segment sub-pixel structure, but the package segment sub-pixel structure of the present disclosure is not limited thereto.

Referring to FIG. 2, a block diagram of a sub-pixel structure according to an embodiment of the disclosure is shown. The sub-pixel structure 20 includes a package segment sub-pixel structure 10, and a hemispherical color film S is disposed on a light-emitting surface of the package segment sub-pixel structure 10 to form an anti-reflection effect of the lens. The package segment sub-pixel structure 10 is further provided therein with an emitting layer EML. By arranging the color film S and the sub-pixel structure 20, the effect of effectively reducing the reflectivity under strong light without arranging a polarizer and improving the light-emitting rate is achieved.

In an embodiment of the present disclosure, the color film S is a hemispherical polymer with pigment added.

In an embodiment of the disclosure, a setting position of the color film S is aligned with a setting position of the light emitting layer EM. In an embodiment of the disclosure, a contact surface between the color film S and the package segment sub-pixel structure 10 is larger than a top surface of the light emitting layer EML. In an embodiment of the disclosure, left and right edges of the color film S are aligned with left and right edges of the light emitting layer EML.

In an embodiment of the disclosure, the color film S includes an ink layer. In an embodiment of the disclosure, the color film S is disposed on the light-emitting surface of the sub-pixel structure 10 in the package segment by Ink-jet printing (IJP), so as to avoid negative effects of exposure, development and post-baking processes in the color film process, reduce the thickness of the sub-pixel structure, and improve the light-emitting efficiency of the sub-pixel structure.

Referring to FIG. 3, a block diagram of a sub-pixel structure according to an embodiment of the disclosure is shown. The difference between the sub-pixel structure 30 and fig. 2 is that the sub-pixel structure 30 further includes a black matrix BM disposed on the light-emitting surface of the other portion of the sub-pixel structure 10 without the color film S, so as to achieve the effect of reducing light leakage and reflection.

In an embodiment of the disclosure, the black matrix BM is disposed on the light emitting surface of the other portion of the sub-pixel structure 10 without the color film S by ink-jet printing (IJP).

Referring to fig. 4, a block diagram of a segment-packed oled display according to an embodiment of the disclosure is shown. Wherein the package segment OLED display 40 includes a red subpixel structure PIXR including a red light emitting layer REML configured to emit red light, a green subpixel structure PIXG including a green light emitting layer GEML configured to emit green light, and a blue subpixel structure PIXB including a blue light emitting layer BEML configured to emit blue light.

In an embodiment of the present disclosure, the package segment oled display 40 shown in fig. 4 is formed by a plurality of package segment sub-pixel structures 10 emitting different colors of light, but the package segment oled display of the present disclosure is not limited thereto.

Please refer to fig. 5, which shows a block diagram of an oled display according to an embodiment of the present disclosure. The organic light emitting diode display screen 50 includes a package segment organic light emitting diode display screen 40, a hemispherical red color film RS is further disposed on the light-emitting surface of the red sub-pixel structure PIXR, a hemispherical green color film GS is further disposed on the light-emitting surface of the green sub-pixel structure PIXG, and a hemispherical blue color film BS is further disposed on the light-emitting surface of the blue sub-pixel structure PIXB, so as to respectively form an anti-reflection effect of the lens. In other words, by forming the red color film RS, the green color film GS, and the blue color film BS of the Micro Lens Array (MLA) on the package segment oled display 40, the oled display 50 can achieve the effect of effectively reducing the reflectivity under strong light without providing a polarizer and improving the light extraction efficiency.

In an embodiment of the present disclosure, the red color film RS, the green color film GS, and the blue color film BS are hemispherical polymers with pigments added.

In an embodiment of the disclosure, a position of the red color film RS is aligned with a position of the red light emitting layer REML. In an embodiment of the disclosure, a setting position of the green color film GS is aligned with a setting position of the green light emitting layer GEML. In an embodiment of the disclosure, a setting position of the blue color film BS is aligned with a setting position of the blue light emitting layer BEML.

In an embodiment of the disclosure, a contact surface between the red color film RS and the package segment oled display 40 is larger than a top surface of the red light emitting layer REML. In an embodiment of the disclosure, a contact surface between the green color film GS and the package segment oled display 40 is larger than a top surface of the green light emitting layer gem. In an embodiment of the disclosure, a contact surface between the blue color film BS and the package segment oled display 40 is larger than a top surface of the blue light emitting layer BEML.

In an embodiment of the disclosure, left and right edges of the red color film RS are aligned with left and right edges of the red light emitting layer REML. In an embodiment of the disclosure, the left and right edges of the green color film GS are aligned with the left and right edges of the green emitting layer GEML. In an embodiment of the present disclosure, left and right edges of the blue color film BS are aligned with left and right edges of the blue light emitting layer BEML.

Please refer to fig. 6, which shows a block diagram of an oled display according to an embodiment of the present disclosure. The difference from fig. 5 is that the oled display 60 further includes a black matrix BM disposed on the light-emitting surface of the other portion of the package-segment oled display 40 where the red color filter RS, the green color filter GS, and the blue color filter BS are not disposed, so as to reduce light leakage and reflection of the oled display 60.

In an embodiment of the present disclosure, the red color film RS, the green color film GS, and the blue color film BS respectively include a red ink layer, a green ink layer, and a blue ink layer. In an embodiment of the disclosure, the red color film RS, the green color film GS, and the blue color film BS are disposed on the light emitting surfaces of the red subpixel structure PIXR, the green subpixel structure PIXG, and the blue subpixel structure PIXB by inkjet printing.

In one embodiment of the present disclosure, the black matrix BM includes a black ink layer. In an embodiment of the disclosure, the black matrix BM is disposed on the light-emitting surface of the other portion of the package segment oled panel 60 where the red color film RS, the green color film GS, and the blue color film BS are not disposed by an inkjet printing method.

Please refer to fig. 7, which shows a flowchart illustrating a method for manufacturing an oled display according to an embodiment of the present disclosure. The manufacturing method of the organic light emitting diode display screen comprises the following steps:

the process S1 includes providing a package segment oled panel including a red sub-pixel structure, a green sub-pixel structure, and a blue sub-pixel structure.

In the process S2, a hemispherical red color film is disposed on the light emitting surface of the red sub-pixel structure.

In the process S3, a hemispherical green color film is disposed on the light emitting surface of the green sub-pixel structure.

In the process S4, a hemispherical blue color film is disposed on the light emitting surface of the blue sub-pixel structure.

In one embodiment of the present disclosure, the manufacturer may change the sequence of the process S2, the process S3, and the process S4 according to the process requirement.

In an embodiment of the disclosure, after the red color film, the green color film, and the blue color film are disposed, a black matrix is disposed on light-emitting surfaces of other portions of the package-segment organic light-emitting diode panel where the red color film, the green color film, and the blue color film are not disposed.

In an embodiment of the disclosure, the red color film, the green color film, and the blue color film are disposed on the light emitting surface of the red sub-pixel structure, the light emitting surface of the green sub-pixel structure, and the light emitting surface of the blue sub-pixel structure by an inkjet printing method.

In an embodiment of the disclosure, the black matrix is disposed on the light emitting surfaces of the other portions of the package segment organic light emitting diode panel where the red color film, the green color film and the blue color film are not disposed in an inkjet printing manner.

The sub-pixel structure, the organic light emitting diode display screen and the manufacturing method thereof are provided by the present disclosure. The sub-pixel structure comprises a packaging section sub-pixel structure and a color film arranged on a light-emitting surface on the upper surface of the packaging section sub-pixel structure, wherein the color film is hemispherical, so that the effects of reducing the thickness of the organic light-emitting diode display screen, improving the light-emitting rate of the organic light-emitting diode display screen, avoiding the negative effects of exposure, development and post-baking processes in the color film manufacturing process and effectively reducing the reflectivity of the organic light-emitting diode display screen under strong light without arranging a polarizer are achieved.

The foregoing is merely a preferred embodiment of the present disclosure, and it should be noted that modifications and refinements may be made by those skilled in the art without departing from the principle of the present disclosure, and these modifications and refinements should also be construed as the protection scope of the present disclosure.