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WO2016184030A1 - 像素排列结构、有机电致发光器件、显示装置、掩模板 - Google Patents

像素排列结构、有机电致发光器件、显示装置、掩模板 Download PDF

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Publication number
WO2016184030A1
WO2016184030A1 PCT/CN2015/092403 CN2015092403W WO2016184030A1 WO 2016184030 A1 WO2016184030 A1 WO 2016184030A1 CN 2015092403 W CN2015092403 W CN 2015092403W WO 2016184030 A1 WO2016184030 A1 WO 2016184030A1
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Prior art keywords
pixel
sub
pixels
arrangement structure
center point
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PCT/CN2015/092403
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English (en)
French (fr)
Inventor
嵇凤丽
梁逸南
白珊珊
玄明花
孙亮
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Priority to US15/127,215 priority Critical patent/US20180175121A1/en
Publication of WO2016184030A1 publication Critical patent/WO2016184030A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material

Definitions

  • Embodiments of the present invention relate to a pixel arrangement structure, an organic electroluminescence device, a display device, and a mask.
  • AMOLED Active Matrix Organic Light Emitting Diode
  • the principle of AMOLED autonomous illumination includes: using an indium tin oxide semiconductor (ITO) electrode and a metal electrode fabricated on the back plate as anodes and cathodes of the device, respectively, and vapor-depositing the organic semiconductor material and the luminescent material onto the substrate, and driving at a certain voltage. Electron and holes are injected from the cathode and the anode to the electron and hole transport layers, respectively, and electrons and holes migrate to the light-emitting layer through the electron and hole transport layers, respectively, and meet in the light-emitting layer to form excitons and emit light. Molecular excitation, which emits visible light through radiation relaxation.
  • ITO indium tin oxide semiconductor
  • Fine Metal Mask is one of the most critical technologies that restrict its development.
  • the resolution is increased, the fabrication of the metal mask for vapor deposition is becoming more and more difficult.
  • the distance between the sub-pixel light-emitting areas is getting smaller and smaller, and the screen color mixing of the vapor deposition will become more and more serious, especially the traditional strip-shaped red, green and blue (R, G).
  • the pixel arrangement structure of the existing organic light-emitting device cannot solve the problem of narrowing the opening area of the metal mask under the premise of ensuring no crosstalk of the image, resulting in small light-emitting area, low aperture ratio, and product brightness. And the life can not meet the requirements, ultimately leading to low yield of AMOLED products, limiting the mass production of high-resolution AMOLED panels.
  • Embodiments of the present invention provide a pixel arrangement structure including a plurality of pixels, each pixel being composed of three different color sub-pixels, wherein a center point connection of each sub-pixel constitutes an equilateral triangle, and the shape of each sub-pixel A polygon with more than four sides.
  • each sub-pixel has a shape of a regular hexagon.
  • the pixel arrangement structure includes a plurality of repeatedly arranged pixel unit rows, and each pixel unit row includes at least one pixel unit group, and each pixel unit group on each pixel unit row is composed of two of the pixels, wherein The first color sub-pixel of the first pixel is on the same line as the center point of the second color sub-pixel and the third color sub-pixel of the second pixel, and the second color sub-pixel and the third color sub-pixel of the first pixel and the first pixel The center points of the first color sub-pixels of the two pixels are on the same straight line, and the adjacent sides of any two adjacent sub-pixels are parallel and equal in length.
  • each pixel unit group on each pixel unit row includes two of the pixels, which are a first pixel and a second pixel, respectively, and the first pixel and the second pixel are adjacent to each other. It is assumed that the center point of the three sub-pixels in the first pixel constitutes an equilateral triangle, and the center point of the three sub-pixels in the second pixel constitutes an inverted triangle.
  • each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel; in each pixel unit group, a center point and a green sub-pixel in the first pixel
  • the center point of the red sub-pixel and the center point of the blue sub-pixel in the two pixels are sequentially arranged on the first straight line, the center point of the red sub-pixel in the first pixel and the center point and the second pixel of the blue sub-pixel
  • the center points of the green sub-pixels are sequentially arranged on the second line, wherein the first line is parallel to the second line, and the two lines extend along the row of the pixel unit group.
  • the first pixel is arranged in the odd column
  • the second pixel is arranged in the even column
  • the second pixel is arranged in the odd column.
  • the first column is listed in the even column.
  • the first color sub-pixel of the first pixel of the adjacent two columns of pixels is adjacent to the second color sub-pixel or the third color sub-pixel of the second pixel, adjacent to the two
  • the second color sub-pixel of the first pixel in the column pixel is adjacent to the first color sub-pixel of the second pixel
  • the third color sub-pixel and the second pixel of the first pixel of the adjacent two columns of pixels are adjacent.
  • the opposite sides of any two adjacent sub-pixels are parallel to each other.
  • the side lengths of each sub-pixel are equal.
  • the distance between the center points of any two adjacent different color sub-pixels is equal.
  • Embodiments of the present invention also provide an organic electroluminescent device comprising a substrate substrate, and a pixel arrangement structure as described above on the substrate substrate.
  • Embodiments of the present invention also provide a display device comprising the organic electroluminescent device as described above.
  • An embodiment of the present invention further provides a mask for fabricating the above pixel arrangement structure, comprising: a substrate, and an opening region on the substrate corresponding to the sub-pixels in the pixel arrangement structure.
  • FIG. 1 is a schematic diagram of a pixel arrangement structure according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of arrangement of sub-pixels in different sub-pixel unit groups in any pixel unit group in a pixel arrangement structure according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram showing repeated arrangement of pixel unit groups in a pixel arrangement structure according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of arrangement of different sub-pixel unit groups in any pixel unit group in a pixel arrangement structure according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a mask according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a corresponding relationship between an open area in a mask and a sub-pixel in a pixel arrangement structure according to an embodiment of the present disclosure.
  • the embodiment of the invention provides a pixel arrangement structure, an organic electroluminescent device, a display device and a mask plate, so that the opening area of the metal mask plate for manufacturing the pixel arrangement structure is larger, thereby increasing the aperture ratio and improving the brightness of the AMOLED product. Life and image clarity.
  • a pixel arrangement structure provided by an embodiment of the present invention includes a plurality of pixels, each pixel being composed of three different color sub-pixels.
  • the center point connecting lines of each sub-pixel constitute an equilateral triangle, so that the sub-pixels are arranged in a dot-like dislocation, and each sub-pixel has a shape of a polygon having a number of sides greater than four, and may be, for example, a pentagon or a hexagon. Since the pentagon or hexagonal illuminating area is larger than the quadrilateral, the illuminating area is effectively enlarged, and the non-illuminating area is compressed.
  • the opening area of the metal mask which manufactures the pixel arrangement structure also increases, and the distance between the opening areas of the metal mask board can also be increased, the strength of the metal mask board is increased, and the metal mask board is extended.
  • Service life reduces production costs.
  • the brightness and life of the product can meet higher requirements, improve the yield of AMOLED products, facilitate mass production of high-resolution AMOLED panels, and avoid image crosstalk problems, so that the screen display quality is clear.
  • each sub-pixel is a regular hexagon.
  • the pixel arrangement structure includes a plurality of repeatedly arranged pixel unit rows, and each pixel unit row includes at least one pixel unit group, and each pixel unit group on each pixel unit row is composed of the pixels.
  • each pixel unit group on each pixel unit row includes two of the pixels, which are a first pixel and a second pixel, respectively, and the first pixel and the second pixel are adjacently disposed, and three of the first pixels
  • the center point of the pixel is connected to form an equilateral triangle, and the center point of the three sub-pixels in the second pixel is connected. Form an inverted triangle.
  • a pixel arrangement structure in an embodiment of the present invention includes: a plurality of repeatedly arranged pixel unit rows 10, and each pixel unit row 10 includes at least one pixel unit group 20, each pixel on each pixel unit row.
  • the cell group 20 includes first pixels 201 and second pixels 202 disposed adjacently, the first pixel 201 and the second pixel 202 respectively including three sub-pixels of different colors; for example, four pixel cell rows are included in FIG. 10.
  • Each pixel unit row includes two pixel unit groups 20.
  • a column If it is described from a column, it includes four pixel unit columns, wherein the first pixel 201 and the second pixel 202 in the same row constitute a pixel unit group 20, and the third pixel and the fourth pixel in the same row constitute a pixel unit group. 20, and so on.
  • each pixel unit group three sub-pixels in the first pixel are arranged in a positive triangle, and three sub-pixels in the second pixel are arranged in an inverted triangle; that is, the first color sub-pixel in the first pixel
  • the line connecting the center point, the second color sub-pixel center point, and the third color sub-pixel center point constitutes an equilateral triangle, the first color sub-pixel center point, the second color sub-pixel center point, and the third color in the second pixel
  • the line connecting the center points of the sub-pixels also constitutes an equilateral triangle, and the line a of the first color sub-pixel center point and the second color sub-pixel center point in the first pixel, and the first color sub-pixel in the second pixel
  • the line center point is parallel to the line b of the center point of the third color sub-pixel.
  • each sub-pixel has a shape of a polygon having a number of sides greater than four.
  • the shape of each sub-pixel described in the embodiment of the present invention is a regular hexagon, and may of course be a pentagon.
  • the pixel arrangement structure in the embodiment of the present invention includes: a plurality of repeatedly arranged pixel unit rows, and each pixel unit row includes at least one pixel unit group, and each pixel unit group on each pixel unit row includes adjacent settings.
  • a first pixel and a second pixel the first pixel and the second pixel respectively comprise three sub-pixels of different colors; wherein, in each pixel unit group, three sub-pixels in the first pixel are arranged in a positive triangle, The three sub-pixels in the second pixel are arranged in an inverted triangle; each sub-pixel is shaped as a polygon having more than four sides, for example, a pentagon or a hexagon, and the sub-pixels of these shapes are arranged in a dot-like manner.
  • the pixel arrangement plays a crucial role in the fabrication of the metal mask.
  • the aperture ratio is greatly improved compared with the existing slot shape opening.
  • the RGB opening area of the vapor deposition metal mask provided by the embodiment of the present invention is relatively large.
  • the difficulty in fabricating the mask is greatly reduced, and the distance between the openings is increased, which can effectively prevent the mask from being deformed during the web process, thereby improving the evaporation effect and making the picture clearer. That is, in the pixel arrangement structure provided by the embodiment of the present invention,
  • the pentagon or hexagonal illuminating area is larger than the quadrilateral, thereby effectively expanding the illuminating area and compressing the non-illuminating area.
  • the opening area of the metal mask which manufactures the pixel arrangement structure also increases, and the distance between the opening areas of the metal mask board can also be increased, the strength of the metal mask board is increased, and the metal mask board is extended.
  • Service life reduces production costs.
  • the brightness and life of the product can meet higher requirements, improve the yield of AMOLED products, facilitate mass production of high-resolution AMOLED panels, and avoid image crosstalk problems, so that the screen display quality is clear.
  • any two adjacent sub-pixels are parallel to each other.
  • the area of each sub-pixel is equal.
  • adjacent sides of any two adjacent sub-pixels are parallel and equal in length.
  • the distance between the center points of any two adjacent different color sub-pixels is equal.
  • each sub-pixel unit group includes a red sub-pixel 401, a green sub-pixel 402, and a blue sub-pixel 403;
  • the center point of the green sub-pixel 402 in the first pixel and the center point of the red sub-pixel 401 in the second pixel and the center point of the blue sub-pixel 403 are sequentially arranged in the a line 501
  • the center point of the red sub-pixel 401 in the first pixel and the center point of the blue sub-pixel 403 and the center point of the green sub-pixel 402 in the second pixel are sequentially arranged on the second line 502, wherein
  • the first line 501 is parallel to the second line 502, and the two lines extend along the row in which the group of pixel cells is located.
  • the first line 501 is located above the second line 502.
  • the first pixel arranged in the odd column and the second pixel arranged in the even column; or the second pixel arranged in the odd column, arranged in the even column The first pixel. It should be noted that there is no clear boundary between adjacent columns and columns.
  • An organic electroluminescent device includes a substrate substrate and the pixel arrangement structure provided by the embodiment of the present invention on the substrate.
  • a display device provided by an embodiment of the invention includes the organic electroluminescent device provided by the embodiment of the invention.
  • a mask for manufacturing the pixel arrangement structure includes: a substrate, And an opening region 601 on the substrate corresponding to the sub-pixels in the pixel arrangement structure, and the FMM opening shape corresponding to each sub-pixel is also a hexagonal shape.
  • Arbitrary phase The adjacent two sides of the adjacent two FMM openings are parallel and of equal length.
  • the FMM opening areas corresponding to different sub-pixels in each row are arranged in a misaligned arrangement, and finally the opening areas of the FMM corresponding to the respective sub-pixels are also arranged in a honeycomb shape.
  • the mask plate described in the embodiment of the present invention may be a metal mask, and the shape, size, and position of the opening region disposed thereon are all dependent on the pixel arrangement structure provided by the embodiment of the present invention, and the opening area and the pixel arrangement of the mask plate are arranged.
  • the sub-pixels in the structure can be matched one by one.
  • the corresponding relationship between the pixel arrangement structure and the open area of the mask provided by the embodiment of the present invention is shown in FIG. 6.
  • the light-emitting area of each sub-pixel corresponds to an open area, and the mask plate is compressed and does not emit light because it effectively enlarges the light-emitting area. area.
  • the opening area of the metal mask which manufactures the pixel arrangement structure also increases, and the distance between the opening areas of the metal mask board can also be increased, the strength of the metal mask board is increased, and the metal mask board is extended. Service life reduces production costs.
  • the pentile arrangement since the pentile arrangement is not used, the problem of image crosstalk can be avoided, and the screen display quality is clear.
  • the embodiment of the present invention provides a novel RGB pixel arrangement structure which is honeycomb-shaped and is advantageous for fabrication of a high-definition metal mask, and a high-definition metal mask.
  • the pixel arrangement structure forms two pixels in six sub-pixels to form one repeating unit, and two pixels are arranged on the same row of TFT substrates.
  • Each pixel includes three sub-pixels of R, G, and B, and the three sub-pixels are all hexagonal in shape. Adjacent sides of any two adjacent sub-pixels are parallel and of equal length.
  • any two adjacent sub-pixels are arranged in a misaligned manner, that is, not on the same straight line, but the center point of each sub-pixel is connected to form an equilateral triangle, and finally the FMM corresponding to each sub-pixel.
  • the center point of each sub-pixel is connected to form an equilateral triangle, and finally the FMM corresponding to each sub-pixel.
  • the metal mask is formed in a slot shape such that the arrangement avoids color mixing caused by the strip openings of the metal mask.
  • the PDL GAP value is constant, since the hexagonal shape is larger than the quadrilateral light-emitting area, the light-emitting area is effectively enlarged, and the non-light-emitting area is compressed.
  • the opening area of the metal mask which manufactures the pixel arrangement structure also increases, and the distance between the opening areas of the metal mask board can also be increased, the strength of the metal mask board is increased, and the metal mask board is extended. Service life reduces production costs. At the same time, both high resolution and Real RGB are satisfied, so the final screen display quality is clear. Since it is not a pentile arrangement but a Real RGB, problems such as image crosstalk and skewed sawtooth are solved.
  • the design principle of the FMM opening area corresponding to each sub-pixel RGB is that the edges of the FMM openings corresponding to the three sub-pixels are next to each other, and the area is fully utilized.
  • the FMM opening area is occupied by the area of the sub-pixel area, and the area of the FMM opening area is also equal (of course, it may not be completely the same, and is not in the embodiment of the present invention.
  • the limitation is), but the light-emitting area of the sub-pixel in each open area of the hexagonal FMM is larger than the light-emitting area of the sub-pixel in the existing quadrilateral FMM opening area, so the aperture ratio of the sub-pixel corresponding to the hexagonal FMM opening area is obvious Increase, which significantly increases the lifetime of RGB LEDs, which is of great value for AMOLED products.
  • the embodiment of the present invention provides a true fabrication method for facilitating the evaporation of the metal mask.
  • the pixel arrangement structure is formed by repeating the arrangement of two sub-pixels and two pixels as a basic unit, and the shape of the light-emitting area of each sub-pixel is hexagonal. The adjacent two sides of the adjacent two sub-pixel light-emitting areas are parallel and of equal length.
  • the light-emitting areas of any two adjacent sub-pixels are arranged in a misaligned manner, and finally the openings of the FMM corresponding to the light-emitting areas of the respective sub-pixels are arranged in a honeycomb shape.

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Abstract

一种像素排列结构、有机电致发光器件、显示装置、掩模板，可以使得制造像素排列结构的金属掩膜板的开口区域增大，进而提高开口率，提高AMOLED产品亮度、寿命以及画质清晰度。该像素排列结构包括多个像素(201、202)，每一像素(201、202)由三个不同颜色子像素(401、402、403)构成，其中，各子像素(401、402、403)的中心点连线构成等边三角形，每一子像素(401、402、403)的形状为边数大于四的多边形。

Description

像素排列结构、有机电致发光器件、显示装置、掩模板 技术领域
本发明的实施例涉及一种像素排列结构、有机电致发光器件、显示装置、掩模板。
背景技术
在手机和平板显示技术中，主动矩阵有机电致发光(Active Matrix Organic Light Emitting Diode，AMOLED)面板由于其自主发光、色彩鲜艳、低功耗、广视角等优点将逐渐成为下一代显示器的主流。
AMOLED自主发光的原理包括：用背板上制作的铟锡氧化物半导体(ITO)电极和金属电极分别作为器件的阳极和阴极，将有机半导体材料和发光材料蒸镀到基板上，在一定电压驱动下，电子和空穴分别从阴极和阳极注入到电子和空穴传输层，电子和空穴分别经过电子和空穴传输层迁移到发光层，并在发光层中相遇，形成激子并使发光分子激发，后者经过辐射弛豫而发出可见光。
目前人们对手机或者平板的分辨率和亮度要求越来越高，但要生产高质量、高分辨率的有机电致发光(Organic Light Emitting Diode，OLED)显示屏，仍然面临重重挑战。对于高分辨率的AMOLED来说，精密金属掩膜板(Fine Metal Mask，FMM)是制约其发展的最关键技术之一。随着分辨率的提高，该蒸镀用的金属掩膜板的制作也越来越困难。同时由于分辨率的提高，子像素发光区域之间的距离越来越小，蒸镀出来的屏幕混色也会越来越严重，特别是传统的条状排列的红、绿、蓝(R、G、B)三个子像素，每个子像素对应的FMM的开口区域的长度较长，直线性控制困难，容易发生混色。而传统的点状(Slot)的RGB排列方式，虽然不会导致开口区域长度较长，直线性难以控制，但是在FMM的开口区域的制作过程中，每个Slot的开口区域之间都要留有一定的金属原材料作为连接桥(称为Rib)，从而导致子像素FMM开口区域面积缩小，影响OLED显示器件的开口率。开口率低，OLED的亮度和寿命就不能达到要求，导致AMOLED产品良率低，限制了高分辨 率的AMOLED面板量产。研发人员提出了一种pentile的像素排列方式，但是该排列方式存在图像串扰加重、斜线锯齿恶化等问题。
综上所述，已有的有机发光器件中的像素排列结构，无法在保证图像无串扰的前提下，解决金属掩膜板的开口区域缩小的问题，导致发光面积小、开口率低、产品亮度和寿命不能达到要求，最终导致AMOLED产品良率低，限制了高分辨率的AMOLED面板量产。
发明内容
本发明的实施例提供一种像素排列结构，包括多个像素，每个像素由三个不同颜色子像素构成，其中，各子像素的中心点连线构成等边三角形，每一子像素的形状为边数大于四的多边形。
例如，在所述的像素排列结构中，每一子像素的形状为正六边形。
例如，该像素排列结构包括多个重复排列的像素单元行，且每一像素单元行包括至少一个像素单元组，每一像素单元行上的每一像素单元组由两个所述像素构成，其中第一像素的第一颜色子像素与第二像素的第二颜色子像素和第三颜色子像素的中心点位于同一直线上，第一像素的第二颜色子像素和第三颜色子像素与第二像素的第一颜色子像素的中心点位于同一直线，任意相邻的两个子像素的相邻边平行且长度相等。
例如，在所述的像素排列结构中，每一像素单元行上的每一像素单元组包括两个所述像素，分别为第一像素和第二像素，且第一像素和第二像素相邻设置，第一像素中的三个子像素的中心点连线构成正三角形，第二像素中的三个子像素的中心点连线构成倒三角形。
例如，在所述的像素排列结构中，每一像素分别包括红色子像素、绿色子像素和蓝色子像素；在每一像素单元组中，第一像素中的绿色子像素的中心点与第二像素中的红色子像素的中心点和蓝色子像素的中心点依次排列于第一直线上，第一像素中的红色子像素的中心点和蓝色子像素的中心点与第二像素中的绿色子像素的中心点依次排列于第二直线上，其中第一直线与第二直线平行，并且这两条直线沿着该像素单元组所在行延伸。
例如，在所述的像素排列结构中，在列方向上，排列在奇数列的为第一像素，排列在偶数列的为第二像素；或者，排列在奇数列的为第二像素，排 列在偶数列的为第一像素。
例如，所述的像素排列结构中，相邻两列像素中的第一像素中的第一颜色子像素与第二像素中的第二颜色子像素或第三颜色子像素相邻，相邻两列像素中的第一像素中的第二颜色子像素与第二像素中的第一颜色子像素相邻，相邻两列像素中的第一像素中的第三颜色子像素与第二像素中的第一颜色子像素相邻。
例如，在所述的像素排列结构中，任意两个相邻的子像素相对的边相互平行。
例如，在所述的像素排列结构中，每一子像素的边长相等。
例如，在所述的像素排列结构中，任意两个相邻的不同颜色子像素的中心点之间的距离相等。
本发明的实施例还提供一种有机电致发光器件，包括衬底基板，以及位于所述衬底基板上的如上所述的像素排列结构。
本发明的实施例还提供一种显示装置，包括如上所述的有机电致发光器件。
本发明的实施例还提供一种用于制作上述像素排列结构的掩膜板，包括：基板，以及位于所述基板上的与所述像素排列结构中的子像素一一对应的开口区域。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为本发明实施例提供的像素排列结构示意图；
图2为本发明实施例提供的像素排列结构中的任一像素单元组中的不同子像素单元组中子像素的排列示意图；
图3为本发明实施例提供的像素排列结构中像素单元组的重复排列示意图；
图4为本发明实施例提供的像素排列结构中的任一像素单元组中的不同子像素单元组的排列示意图；
图5为本发明实施例提供的一种掩模板的结构示意图；
图6为本发明实施例提供的掩模板中的开口区域与本发明实施例提供的像素排列结构中的子像素的对应关系示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种像素排列结构、有机电致发光器件、显示装置、掩模板，使得制造像素排列结构的金属掩膜板的开口区域较大，进而提高开口率，提高AMOLED产品亮度、寿命以及画质清晰度。
本发明实施例提供的一种像素排列结构包括多个像素，每个像素由三个不同颜色子像素构成。其中，各子像素的中心点连线构成等边三角形，使得这些子像素呈点状的错位排列，每一子像素的形状为边数大于四的多边形，例如可以是五边形或六边形，由于五边形或六边形的发光面积比四边形大，从而有效地扩大了发光面积，压缩了不发光面积。此外，制造该像素排列结构的金属掩膜板的开口区域也增大，金属掩膜板的开口区域之间的距离也可以增大，增加了金属掩膜板强度，延长了金属掩膜板的使用寿命，降低了生产成本。另外，产品亮度和寿命可以满足更高要求，提高了AMOLED产品良率，有利于高分辨率的AMOLED面板量产，并且可以避免图像串扰的问题，使得屏幕显示画质清晰。
例如，每一子像素的形状为正六边形。
例如，该像素排列结构包括多个重复排列的像素单元行，且每一像素单元行包括至少一个像素单元组，每一像素单元行上的每一像素单元组由所述像素构成。
例如，每一像素单元行上的每一像素单元组包括两个所述像素，分别为第一像素和第二像素，且第一像素和第二像素相邻设置，第一像素中的三个子像素的中心点连线构成正三角形，第二像素中的三个子像素的中心点连线 构成倒三角形。
参见图1，本发明实施例中的像素排列结构包括：多个重复排列的像素单元行10，且每一像素单元行10包括至少一个像素单元组20，每一像素单元行上的每一像素单元组20包括相邻设置的第一像素201和第二像素202，所述第一像素201和第二像素202分别包括三个不同颜色的子像素；例如，图1中包括四个像素单元行10，每一像素单元行包括两个像素单元组20。如果从列来描述的话，包括四个像素单元列，其中位于同一行的第一像素201和第二像素202构成一像素单元组20，同一行的第三像素和第四像素构成一像素单元组20，以此类推。
其中，参见图2，在每一像素单元组中，第一像素中的三个子像素呈正三角排列，第二像素中的三个子像素呈倒三角排列；即第一像素中的第一颜色子像素中心点、第二颜色子像素中心点、第三颜色子像素中心点的连线构成等边三角形，第二像素中的第一颜色子像素中心点、第二颜色子像素中心点、第三颜色子像素中心点的连线也构成等边三角形，并且，第一像素中的第一颜色子像素中心点和第二颜色子像素中心点的连线a，与第二像素中的第一颜色子像素中心点和第三颜色子像素中心点的连线b平行。
本发明实施例中每一子像素的形状为边数大于四的多边形。例如，本发明实施例中所述的每一子像素的形状为正六边形，当然也可以为五边形。
本发明实施例中的像素排列结构，包括：多个重复排列的像素单元行，且每一像素单元行包括至少一个像素单元组，每一像素单元行上的每一像素单元组包括相邻设置的第一像素和第二像素，所述第一像素和第二像素分别包括三个不同颜色的子像素；其中，在每一像素单元组中，第一像素中的三个子像素呈正三角排列，第二像素中的三个子像素呈倒三角排列；每一子像素的形状为边数大于四的多边形，例如可以是五边形或六边形，并且这些形状的子像素呈点状的错位排列。像素排列对金属掩膜板的制作起着至关重要的作用。本发明实施例提供的像素排列，与现有的slot形状开口相比，开口率大大提高；与diamond形状开口相比，本发明实施例提供的蒸镀金属掩膜板的RGB开口区域比较大，大大降低掩膜板的制作难度，而且增加了开口之间的距离，能有效地防止掩膜板在张网过程中变形，从而改善了蒸镀的效果，使画面更清晰。也就是说，本发明实施例提供的像素排列结构中，由于 五边形或六边形的发光面积比四边形大，从而有效地扩大了发光面积，压缩了不发光面积。此外，制造该像素排列结构的金属掩膜板的开口区域也增大，金属掩膜板的开口区域之间的距离也可以增大，增加了金属掩膜板强度，延长了金属掩膜板的使用寿命，降低了生产成本。另外，产品亮度和寿命可以满足更高要求，提高了AMOLED产品良率，有利于高分辨率的AMOLED面板量产，并且可以避免图像串扰的问题，使得屏幕显示画质清晰。
参见图3，
例如，任意两个相邻的子像素相对的边相互平行。
例如，每一子像素的面积相等。
即本发明实施例中，任意相邻的两个子像素的相邻边平行且长度相等。
例如，任意两个相邻的不同颜色子像素的中心点之间的距离相等。
例如，每一子像素单元组中分别包括红色子像素401、绿色子像素402和蓝色子像素403；
参见图4，在每一像素单元组中，第一像素中的绿色子像素402的中心点与第二像素中的红色子像素401的中心点和蓝色子像素403的中心点依次排列于第一直线501上，第一像素中的红色子像素401的中心点和蓝色子像素403的中心点与第二像素中的绿色子像素402的中心点依次排列于第二直线502上，其中第一直线501与第二直线502平行，并且这两条直线沿着该像素单元组所在的行延伸。第一直线501位于第二直线502上方。
例如，参见图1或图3，在列方向上，排列在奇数列的为第一像素，排列在偶数列的为第二像素；或者，排列在奇数列的为第二像素，排列在偶数列的为第一像素。需要说明的是，相邻的列与列之间没有明确的界限。
本发明实施例提供的一种有机电致发光器件，包括衬底基板以及位于所述衬底基板上的本发明实施例提供的所述的像素排列结构。
本发明实施例提供的一种显示装置，包括本发明实施例提供的有机电致发光器件。
与上述图1所示的像素排列结构相对应地，参见图5，本发明实施例提供的一种用于制作本发明实施例提供的所述的像素排列结构的掩膜板，包括：基板，以及位于所述基板上的与所述像素排列结构中的子像素一一对应的开口区域601，每一子像素对应的FMM开口形状也均为六边形形状。任意相 邻的两个FMM开口的相邻两边平行且长度相等。每行中的不同子像素对应的FMM开口区域呈现错位排列，最终各个子像素对应的FMM的开口区域也呈现蜂窝状排列。
本发明实施例中所述的掩模板可以为金属掩模板，其上设置的开口区域的形状、大小、位置均取决于本发明实施例提供的像素排列结构，掩膜板的开口区域与像素排列结构中的子像素一一对应即可。
本发明实施例提供的像素排列结构与掩模板的开口区域的对应关系参见图6，每一子像素的发光区域对应一开口区域，该掩膜板由于有效地扩大了发光面积，压缩了不发光面积。此外，制造该像素排列结构的金属掩膜板的开口区域也增大，金属掩膜板的开口区域之间的距离也可以增大，增加了金属掩膜板强度，延长了金属掩膜板的使用寿命，降低了生产成本。并且，由于不是采用pentile排列，可以避免图像串扰的问题，屏幕显示画质清晰。
由此可见，本发明实施例提供了一种新型的蜂窝状的并且有利于高精细金属掩膜板制作的真正的RGB像素排列结构，及其高精细金属掩膜板的制作图形。所述的像素排列结构以6个子像素形成2个像素，组成一个重复单元，2个像素在同一行TFT基板上排列。每个像素包括R、G、B共三种颜色的子像素，此三个子像素的形状均为六边形。任意相邻的两个子像素的相邻边平行且长度相等。每行中的三个不同子像素中，任意相邻两个子像素呈错位排列，即不位于同一直线上，而是各子像素的中心点连线构成等边三角形，最终各个子像素对应的FMM呈现蜂窝状排列。
相应地，金属掩膜板制作成slot形状，这样的排列避免了金属掩膜板条状开口导致的混色。在PDL GAP值一定的情况下，由于六边形比四边形发光面积大，有效地扩大了发光面积，压缩了不发光面积。此外，制造该像素排列结构的金属掩膜板的开口区域也增大，金属掩膜板的开口区域之间的距离也可以增大，增加了金属掩膜板强度，延长了金属掩膜板的使用寿命，降低了生产成本。同时既满足高分辨率又满足Real RGB，所以最终屏幕显示画质清晰。由于不是pentile排列，而是Real RGB，所以图像串扰、斜线锯齿恶化等问题得到解决。
各个子像素RGB对应的FMM开口区域的设计原则，是三种子像素对应的FMM开口的边缘紧挨着，充分利用面积。对应本发明实施例中提供的像 素排列结构排列方式，在PDL Gap均相等的情况下，FMM开口区域均占满了子像素区域的面积，同时FMM开口区域的面积也相等(当然也可以不完全相同，本发明实施例中不进行限制)，但是六边形的FMM每一开口区域内子像素的发光面积大于现有的四边形的FMM开口区域内子像素的发光面积，所以六边形的FMM开口区域对应的子像素的开口率明显增大，这样明显增加了RGB发光二极管的寿命，这对于AMOLED产品具有十分重要的价值。
综上所述，为了解决像素排列制约金属掩膜板的制作以及屏幕混色问题，提高开口率，增加AMOLED器件的寿命，本发明实施例提供一种有利于蒸镀金属掩膜板制作的真正的RGB像素排列结构，所述的像素排列结构以6个子像素形成2个像素为基本单元重复排列构成，各个子像素的发光面积的形状均为六边形。任意相邻的两个子像素发光面积的相邻两边平行且长度相等。每行中的三个不同颜色的子像素中，任意相邻两个子像素发光面积呈错位排列，最终各个子像素发光面积对应的FMM的开口呈现蜂窝状排列。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2015年5月18日递交的中国专利申请第201510254661.1号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (13)

  1. 一种像素排列结构，包括多个像素，每个像素由三个不同颜色子像素构成，其中，各子像素的中心点连线构成等边三角形，每一子像素的形状为边数大于四的多边形。
  2. 根据权利要求1所述的像素排列结构，其中，每一子像素的形状为正六边形。
  3. 根据权利要求2所述的像素排列结构，其中，该像素排列结构包括多个重复排列的像素单元行，且每一像素单元行包括至少一个像素单元组，每一像素单元行上的每一像素单元组由两个所述像素构成，其中第一像素的第一颜色子像素与第二像素的第二颜色子像素和第三颜色子像素的中心点位于同一直线上，第一像素的第二颜色子像素和第三颜色子像素与第二像素的第一颜色子像素的中心点位于同一直线，任意相邻的两个子像素的相邻边平行且长度相等。
  4. 根据权利要求3所述的像素排列结构，其中，每一像素单元行上的每一像素单元组包括两个所述像素，分别为第一像素和第二像素，且第一像素和第二像素相邻设置，第一像素中的三个子像素的中心点连线构成正三角形，第二像素中的三个子像素的中心点连线构成倒三角形。
  5. 根据权利要求4所述的像素排列结构，其中，每一像素分别包括红色子像素、绿色子像素和蓝色子像素；
    在每一像素单元组中，第一像素中的绿色子像素的中心点与第二像素中的红色子像素的中心点和蓝色子像素的中心点依次排列于第一直线上，第一像素中的红色子像素的中心点和蓝色子像素的中心点与第二像素中的绿色子像素的中心点依次排列于第二直线上，其中第一直线与第二直线平行，并且这两条直线沿着该像素单元组所在行延伸。
  6. 根据权利要求5所述的像素排列结构，其中，在列方向上，排列在奇数列的为第一像素，排列在偶数列的为第二像素；或者，排列在奇数列的为第二像素，排列在偶数列的为第一像素。
  7. 根据权利要求6所述的像素排列结构，其中，相邻两列像素中的第一像素中的第一颜色子像素与第二像素中的第二颜色子像素或第三颜色子像素 相邻，相邻两列像素中的第一像素中的第二颜色子像素与第二像素中的第一颜色子像素相邻，相邻两列像素中的第一像素中的第三颜色子像素与第二像素中的第一颜色子像素相邻。
  8. 根据权利要求1所述的像素排列结构，其中，任意两个相邻的子像素相对的边相互平行。
  9. 根据权利要求1-8任一权项所述的像素排列结构，其中，每一子像素的边长相等。
  10. 根据权利要求1-8任一权项所述的像素排列结构，其中，任意两个相邻的不同颜色子像素的中心点之间的距离相等。
  11. 一种有机电致发光器件，包括衬底基板，以及位于所述衬底基板上的如权利要求1-10任一项所述的像素排列结构。
  12. 一种显示装置，包括权利要求11所述的有机电致发光器件。
  13. 一种用于制作权利要求1-10任一项所述的像素排列结构的掩膜板，包括：基板，以及位于所述基板上的与所述像素排列结构中的子像素一一对应的开口区域。
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