WO2020000728A1 - 像素排列结构 - Google Patents

像素排列结构 Download PDF

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Publication number
WO2020000728A1
WO2020000728A1 PCT/CN2018/107764 CN2018107764W WO2020000728A1 WO 2020000728 A1 WO2020000728 A1 WO 2020000728A1 CN 2018107764 W CN2018107764 W CN 2018107764W WO 2020000728 A1 WO2020000728 A1 WO 2020000728A1
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sub
pixel
pixels
arrangement structure
adjacent
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PCT/CN2018/107764
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English (en)
French (fr)
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陈俊
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武汉华星光电半导体显示技术有限公司
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Priority to US16/307,470 priority Critical patent/US11094748B2/en
Publication of WO2020000728A1 publication Critical patent/WO2020000728A1/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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • 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
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • 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
    • H10K59/10—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
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs

Definitions

  • the present invention relates to the field of display technology, and in particular, to a pixel arrangement structure.
  • Organic light emitting diode display (Organic Light Emitting Display, OLED) has self-light emitting, low driving voltage, high luminous efficiency, short response time, high definition and contrast, near 180 ° viewing angle, wide use temperature range, and can realize flexible display and Many advantages such as large-area full-color display are recognized by the industry as the most promising display devices.
  • OLEDs can be divided into passive matrix OLEDs (PMOLEDs) and active matrix OLEDs (AMOLEDs) in terms of driving methods, namely direct addressing and thin film transistor (TFT) matrix addressing. class.
  • PMOLEDs passive matrix OLEDs
  • AMOLEDs active matrix OLEDs
  • driving methods namely direct addressing and thin film transistor (TFT) matrix addressing.
  • TFT thin film transistor
  • AMOLED has pixels arranged in an array, belongs to an active display type, and has high light emitting efficiency, and is generally used as a high-resolution large-sized display device.
  • An OLED device generally includes a substrate, an anode provided on the substrate, a hole injection layer provided on the anode, a hole transport layer provided on the hole injection layer, a light emitting layer provided on the hole transport layer, and a An electron transport layer on the light emitting layer, an electron injection layer provided on the electron transport layer, and a cathode provided on the electron injection layer.
  • the light-emitting principle of OLED devices is that semiconductor materials and organic light-emitting materials are driven by an electric field to cause light emission through carrier injection and recombination.
  • OLED devices generally use indium tin oxide (ITO) electrodes and metal electrodes as the anode and cathode of the device, respectively.
  • ITO indium tin oxide
  • electrons and holes are injected from the cathode and anode into the electron transport layer and the hole transport layer, respectively.
  • the electrons and holes migrate to the light-emitting layer through the electron-transporting layer and the hole-transporting layer, respectively, and meet in the light-emitting layer to form excitons and excite light-emitting molecules, which emit visible light through radiation relaxation.
  • OLED devices in a plurality of sub-pixels of an OLED display panel are generally manufactured by using a precision metal mask (FMM) evaporation deposition.
  • FMM precision metal mask
  • FMM precision metal mask
  • AMOLED display devices precision metal masks for evaporation are one of the most critical technologies that restrict their development. This is because with the increase in the resolution of OLED display panels, The production of precision metal masks for plating will become more and more difficult.
  • the distance between light-emitting regions in sub-pixels will become smaller and smaller, and the color mixing phenomenon of display panels produced by evaporation will become more and more difficult.
  • the opening area of the precision metal mask corresponding to each sub-pixel is long and long Straightness control is difficult, and color mixing is easy to occur.
  • the sub-pixel arrangement of dots (slot) does not cause the length of the opening area to be longer and the linearity can be controlled, it is in the opening area of the precision metal mask.
  • a certain metal raw material must be left between each dot-shaped opening area as a connecting bridge, which leads to a reduction in the size of the opening area of the precision metal mask, which greatly affects the OLED display panel produced.
  • the aperture ratio prevents the brightness and service life of OLED display panels from meeting requirements, reduces product yield, and limits the mass production of high-resolution OLED display panels.
  • Sub-Pixel Rendering (SPR) technology refers to a technology in which adjacent pixels share some sub-pixels. This technology can improve the sensory resolution, so that the display can be made higher with the same sub-pixel arrangement density. Sensory resolution, or reduce the requirement for the arrangement density of the display sub-pixels while maintaining the same sensory resolution.
  • An object of the present invention is to provide a pixel arrangement structure, which is applied to an OLED display panel, can improve the resolution of the OLED display panel, reduce the difficulty of manufacturing the OLED display panel, increase the pixel area, and improve the brightness and life of the OLED display panel.
  • the present invention provides a pixel arrangement structure including a plurality of first pixel rows and a plurality of second pixel rows that are alternately arranged;
  • Each first pixel row includes a plurality of first sub-pixels and a plurality of second sub-pixels arranged alternately and at intervals, and each second pixel row includes a plurality of third sub-pixels arranged at intervals;
  • the first and second sub-pixels adjacent to the third sub-pixel form a virtual triangle
  • the third sub-pixel is disposed in a virtual triangle formed by the first and second sub-pixels adjacent to the third sub-pixel
  • the first sub-pixel and the second sub-pixel are disposed at a vertex of a virtual triangle.
  • the areas of the first and second sub-pixels are the same, and the areas of the first and second sub-pixels are larger than the area of the third sub-pixel.
  • the shape of the third sub-pixel is a regular hexagon.
  • the first sub-pixel includes three first regular hexagonal portions having the same area, and a pair of adjacent sides of each first regular hexagonal portion is respectively different from the other two first regular hexagonal portions. Their respective sides overlap;
  • the second sub-pixel includes three second regular hexagonal portions having the same area, and a pair of adjacent sides of each second regular hexagonal portion is respectively one side of each of the other two second regular hexagonal portions. The edges coincide.
  • contour edges of the first subpixel and the second subpixel each have three concave corners
  • the three concave corners of the contour edge of the first sub-pixel are respectively opposite to a vertex of each of the three third sub-pixels adjacent to the first sub-pixel;
  • the three concave corners of the contour edge of the second sub-pixel are respectively opposite to a vertex of each of the three third sub-pixels adjacent to the second sub-pixel.
  • the shape of the third sub-pixel is circular.
  • each of the first subpixel and the second subpixel includes three first edges and three second edges, and the first edge and the second edge are alternately connected to form a closed figure;
  • the first side is an arc that is recessed toward the inside of the closed figure
  • the second side is an arc that is projected toward the outside of the closed figure.
  • Two first sub-pixels and one second sub-pixel adjacent to the third sub-pixel form a virtual equilateral triangle
  • Two first subpixels and one second subpixel adjacent to the third subpixel are respectively located at three vertices of the virtual triangle, and the center of the third subpixel coincides with the center of the virtual triangle.
  • One first sub-pixel and two second sub-pixels adjacent to the third sub-pixel form a virtual equilateral triangle
  • a first sub-pixel and two second sub-pixels adjacent to the third sub-pixel are respectively located at three vertices of the virtual triangle, and a center of the third sub-pixel coincides with a center of the virtual triangle.
  • the colors of the first subpixel, the second subpixel, and the third subpixel are different, and are one of a red subpixel, a blue subpixel, and a green subpixel, respectively.
  • a pixel arrangement structure provided by the present invention includes a plurality of first pixel rows and a plurality of second pixel rows arranged alternately.
  • Each first pixel row includes a plurality of first sub-pixels and a plurality of second sub-pixels arranged alternately and at intervals.
  • Each second pixel row includes a plurality of third sub-pixels arranged at intervals.
  • the first and second sub-pixels adjacent to the third sub-pixel form a virtual triangle, and the third sub-pixel is disposed in a virtual triangle formed by the first and second sub-pixels adjacent thereto.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a pixel arrangement structure of the present invention
  • FIG. 2 is a schematic structural diagram of a second embodiment of a pixel arrangement structure of the present invention.
  • FIG. 3 is a schematic structural diagram of a third embodiment of a pixel arrangement structure of the present invention.
  • FIG. 4 is a schematic diagram of improving a sub-pixel area according to the third embodiment of the pixel arrangement structure of the present invention.
  • the invention provides a pixel arrangement structure, which is mainly applied to an OLED display panel to improve the resolution of the OLED display panel, reduce the difficulty of manufacturing the OLED display panel, increase the pixel area, and increase the brightness and life of the OLED display panel.
  • the pixel arrangement structure includes a plurality of first pixel rows 10 and a plurality of second pixel rows 20 that are alternately arranged.
  • Each first pixel row 10 includes a plurality of first sub-pixels 31 and a plurality of second sub-pixels 32 arranged alternately and at intervals.
  • Each second pixel row 20 includes a plurality of third sub-pixels 33 arranged at intervals.
  • the first sub-pixel 31 and the second sub-pixel 32 adjacent to the third sub-pixel 33 form a virtual triangle 50, and the third sub-pixel 33 is disposed at the first sub-pixel 31 and the second sub-pixel adjacent thereto.
  • the first sub-pixel 31 and the second sub-pixel 32 are disposed at the vertices of the virtual triangle 50.
  • the areas of the first and second sub-pixels 31 and 32 are the same, and the areas of the first and second sub-pixels 31 and 32 are the same. Larger than the area of the third sub-pixel 33.
  • one first sub-pixel 31 and two second sub-pixels 32 adjacent to the third sub-pixel 33 form an equilateral virtual triangle.
  • a first sub-pixel 31 and two second sub-pixels 32 adjacent to the third sub-pixel 33 are respectively located at three vertices of the virtual triangle 50, and the center of the third sub-pixel 33 and the virtual sub-pixel 33 The centers of the triangles 50 coincide.
  • two first sub-pixels 31 and one second sub-pixel 32 adjacent to the third sub-pixel 33 form a virtual equilateral triangle.
  • Two first sub-pixels 31 and one second sub-pixel 32 adjacent to the third sub-pixel 33 are respectively located at three vertices of the virtual triangle 50, and the center of the third sub-pixel 33 and the virtual The centers of the triangles 50 coincide.
  • each row of the first pixel row 10 is shifted to the left relative to its previous row of the first pixel row 10. 0.5 times the distance between the center of the adjacent first sub-pixel 31 and the center of the second sub-pixel 32.
  • each of the third sub-pixels 33 is correspondingly disposed at a gap between the first sub-pixel 31 and the second sub-pixel 32 arranged adjacent to each other.
  • the shape of the third sub-pixel 33 is a regular hexagon.
  • the first sub-pixel 31 includes three first regular hexagonal portions 311 having the same area. A pair of adjacent sides of each first regular hexagonal portion 311 coincides with a respective one of the other two first regular hexagonal portions 311.
  • the second sub-pixel 32 includes three second regular hexagonal portions 321 having the same area. A pair of adjacent side edges of each second regular hexagonal portion 321 coincides with one side of each of the other two second regular hexagonal portions 321, respectively.
  • the second subpixel 32 includes three second regular hexagonal portions 321 having the same area, so that the first subpixel 31 and the second The contour edges of the sub-pixels 32 each have three concave corners.
  • the three concave corners of the contour edge of the first sub-pixel 31 are respectively opposite to a vertex of each of the three third sub-pixels 33 adjacent to the first sub-pixel 31.
  • the three concave corners of the contour edge of the second sub-pixel 32 are respectively opposite to a vertex of each of the three third sub-pixels 31 adjacent to the second sub-pixel 32.
  • the structure in which the first sub-pixel 31 includes three first regular hexagonal portions 311 having the same area and the second sub-pixel 32 includes three second regular hexagonal portions 321 having the same area is a more ideal structure.
  • the structure of the first sub-pixel 31 and the second sub-pixel 32 may deviate from the ideal state, such as the top of the first regular hexagonal portion 311 and the second regular hexagonal portion 321.
  • the corners are circular.
  • the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 have different colors, and are one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel, respectively.
  • the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 emit red, blue, and green light, respectively, corresponding to the OLED display panel, that is, the first sub-pixel. 31.
  • the second sub-pixel 32 and the third sub-pixel 33 respectively include organic light emitting diodes that emit red, blue, and green light.
  • the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 may also emit light of other colors.
  • a virtual triangle 50 is formed between the first sub-pixel 31 and the second sub-pixel 32 adjacent to each third sub-pixel 33, and The third sub-pixel 33 is set in the corresponding virtual triangle 50, so that the sub-pixels between the pixels can be shared, which can effectively reduce the sub-pixels compared to the traditional red, green, and blue sub-pixel structure arranged in a stripe and sequentially arranged.
  • Number so that the display can achieve higher sensory resolution under the same sub-pixel arrangement density, while maintaining the same sensor resolution, reduce the requirement for the display sub-pixel arrangement density and reduce OLED The difficulty of making the display panel.
  • each has three The part that extends outward from the center allows the area of the first sub-pixel 31 and the second sub-pixel 32 to increase under the premise of ensuring the spacing between the respective sub-pixels, and then the pixel arrangement structure is applied to the OLED display panel.
  • the brightness of the OLED display panel is increased, and the service life is increased.
  • FIG. 2 is a second embodiment of the pixel arrangement structure of the present invention.
  • the difference between the second embodiment and the first embodiment is that the pixel arrangement structure of the second embodiment is similar to the first embodiment.
  • the interval between the center of the first sub-pixel 31 and the center of the second sub-pixel 32. The rest are the same as those of the first embodiment, and will not be repeated here.
  • the pixel arrangement structure includes a plurality of first pixel rows 10 'and a plurality of second pixel rows 20' that are alternately arranged.
  • Each first pixel row 10 ' includes a plurality of first sub-pixels 31' and a plurality of second sub-pixels 32 'arranged alternately and at intervals
  • each second pixel row 20' includes a plurality of third sub-pixels arranged at intervals. 33 '.
  • the first sub-pixel 31 'and the second sub-pixel 32' adjacent to the third sub-pixel 33 ' form a virtual triangle 50', and the third sub-pixel 33 'is disposed at the first sub-pixel 31 adjacent thereto.
  • the first sub-pixel 31' and the second sub-pixel 32 ' are disposed at the apex of the virtual triangle 50'.
  • the areas of the first sub-pixel 31 'and the second sub-pixel 32' are the same, and the first sub-pixel 31 'and the second sub-pixel are the same.
  • the area of 32 ' is larger than the area of the third sub-pixel 33'.
  • one first sub-pixel 31 ′ and two second sub-pixels 32 ′ adjacent to the third sub-pixel 33 ′ form a virtual equilateral edge. triangle.
  • the center coincides with the center of the virtual triangle 50 '.
  • two first sub-pixels 31 'and one second sub-pixel 32' adjacent to the third sub-pixel 33 ' form a virtual equilateral triangle.
  • the center coincides with the center of the virtual triangle 50 '.
  • each of the first row of pixels 10' is relative to the first row of pixels 10 'of its previous row. Pan left by 0.5 times the distance between the center of the adjacent first sub-pixel 31 'and the center of the second sub-pixel 32'.
  • the shape of the third sub-pixel 33 ' is circular.
  • the first sub-pixel 31 'and the second sub-pixel 32' each include three first sides 301 'and three second sides 302'.
  • the first sides 301 'and the second sides 302' are alternately connected to form a closed figure.
  • the first side 301 ' is an arc line depressed toward the inside of the closed figure
  • the second side 302' is an arc line protruding toward the outside of the closed figure.
  • the shapes of the first sub-pixel 31 'and the second sub-pixel 32' should be exactly the same, and each first sub-pixel The curvature radii of the three first sides 301 'of 31' and the second sub-pixel 32 'are also the same, and the curvature radii 302' of the three second sides are the same, but in the third embodiment of the pixel arrangement structure during the actual production process, Due to the existence of manufacturing errors (such as manufacturing errors caused by different conditions of the vapor deposition machine), the shapes of the first sub-pixel 31 ′ and the second sub-pixel 32 ′ actually obtained may be slightly different, and each first The curvature radii of the three first edges 301 'of the sub-pixel 31' and the three first edges 301 'of the second sub-pixel 32' may also be slightly different. The three second edges 302 'of each first sub-pixel 31' The curvature radii of the three second edges 302 '
  • the first sub-pixel 31 ', the second sub-pixel 32', and the third sub-pixel 33 ' have different colors, and are one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel, respectively.
  • the first sub-pixel 31 ', the second sub-pixel 32', and the third sub-pixel 33 ' emit red, blue, and green light, respectively, corresponding to an OLED display panel, that is, the first A sub-pixel 31 ', a second sub-pixel 32', and a third sub-pixel 33 'include organic light emitting diodes that emit red, blue, and green light, respectively.
  • the first sub-pixel 31 ', the second sub-pixel 32', and the third sub-pixel 33 ' may also emit light of other colors.
  • a virtual triangle 50 is formed between the first sub-pixel 31 'and the second sub-pixel 32' adjacent to each third sub-pixel 33 '. ', And the third sub-pixel 33' is set in the corresponding virtual triangle 50 ', so that the sub-pixels between the pixels can be shared, compared with the traditional red, green and blue sub-pixel structure that is arranged in a strip shape and arranged in sequence, It can effectively reduce the number of sub-pixels, so that the display can achieve higher sensory resolution under the same sub-pixel arrangement density, and reduce the arrangement density of the display sub-pixels while maintaining the same sensor resolution. Requirements to reduce the difficulty of making OLED display panels.
  • the first sub-pixel 31 'and the second The sub-pixels 32 ' all adopt a closed pattern surrounded by three first sides 301' and three second sides 302 'alternately.
  • the third sub-pixel 33' is set to a circle, which is more in line with the principle of diffusion and can effectively reduce the difficulty of FMM production.
  • the round third sub-pixel 33 ' is the shape with the smallest side length and the highest efficiency in the same area, and because the human eye has a halo effect, a small non-circular light emitter will also be regarded as an approximate circle, so the third Setting the sub-pixel 33 'in a circular shape can maximize the efficiency of the third sub-pixel 33' and meet the halo effect of the human eye.
  • FIG. 1 please refer to FIG. 1
  • first sub-pixel 31 ′ and the second sub-pixel 32 ′ each have three portions extending outward from the center, and the three first sides 301 ′ of each first sub-pixel 31 ′ are respectively Opposite the three third sub-pixels 33 'adjacent to the first sub-pixel 31', the three first sides 301 'of each second sub-pixel 32' are respectively adjacent to the three third sub-pixels 32 '
  • the third sub-pixel 33 ' is opposite.
  • the first sub-pixel and the second sub-pixel 60 ' are also circular, so that in the third embodiment of the present invention, the areas of the first sub-pixel 31' and the second sub-pixel 32 'are larger than
  • the area of the normal circular first sub-pixel and second sub-pixel 60 ′ when the sub-pixels are spaced apart makes the pixel arrangement structure increase the brightness and service life of the OLED display panel after it is applied to the OLED display panel.
  • the pixel arrangement structure of the present invention includes a plurality of first pixel rows and a plurality of second pixel rows that are alternately arranged.
  • Each first pixel row includes a plurality of first sub-pixels and a plurality of second sub-pixels arranged alternately and at intervals.
  • Each second pixel row includes a plurality of third sub-pixels arranged at intervals.
  • the first and second sub-pixels adjacent to the third sub-pixel form a virtual triangle, and the third sub-pixel is disposed in a virtual triangle formed by the first and second sub-pixels adjacent thereto.

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Abstract

本发明提供一种像素排列结构，包括交替排列的多个第一像素行及多个第二像素行。每一第一像素行包括交替且间隔排列的多个第一子像素和多个第二子像素，每一第二像素行包括间隔排列的多个第三子像素。与所述第三子像素相邻的第一子像素和第二子像素形成虚拟三角形，所述第三子像素设置在与其相邻的第一子像素和第二子像素形成的虚拟三角形内。将该像素排列结构应用于OLED显示面板中，能够提高OLED显示面板的分辨率，降低OLED显示面板的制作难度，并增加像素面积，提高OLED显示面板的亮度与寿命。

Description

像素排列结构 技术领域
本发明涉及显示技术领域，尤其涉及一种像素排列结构。
背景技术
有机发光二极管显示装置(Organic Light Emitting Display，OLED)具有自发光、驱动电压低、发光效率高、响应时间短、清晰度与对比度高、近180°视角、使用温度范围宽，可实现柔性显示与大面积全色显示等诸多优点，被业界公认为是最有发展潜力的显示装置。
OLED按照驱动方式可以分为无源矩阵型OLED(Passive Matrix OLED，PMOLED)和有源矩阵型OLED(Active Matrix OLED，AMOLED)两大类，即直接寻址和薄膜晶体管(TFT)矩阵寻址两类。其中，AMOLED具有呈阵列式排布的像素，属于主动显示类型，发光效能高，通常用作高清晰度的大尺寸显示装置。
OLED器件通常包括：基板、设于基板上的阳极、设于阳极上的空穴注入层、设于空穴注入层上的空穴传输层、设于空穴传输层上的发光层、设于发光层上的电子传输层、设于电子传输层上的电子注入层及设于电子注入层上的阴极。OLED器件的发光原理为半导体材料和有机发光材料在电场驱动下，通过载流子注入和复合导致发光。具体的，OLED器件通常采用氧化铟锡(ITO)电极和金属电极分别作为器件的阳极和阴极，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传输层和空穴传输层，电子和空穴分别经过电子传输层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。
现有技术中，一般利用精密金属掩膜板(Fine Metal Mask，FMM)蒸镀制作OLED显示面板的多个子像素中的OLED器件，随着市场的发展，消费者对显示装置的分辨率和亮度要求越来越高，对于高分辨率的AMOLED显示装置而言，蒸镀用精密金属掩膜板是制约其发展的最关键技术之一，这是由于随着OLED显示面板分辨率的提高，蒸镀用的精密金属掩膜板的制作会越来越困难，同时由于分辨率的提高，子像素中发光区域之间的距离要求越来越小，蒸镀制得的显示面板混色现象会越来越严重，特别是传统的条状排列的红(R)、绿(G)、蓝(B)三个子像素，每个子 像素对应的精密金属掩膜板的开口区域为长条状，长度较长，直线性控制困难，容易发生混色，而点状(Slot)的子像素排列方式，虽然不会导致开口区域的长度较长，直线性能够得到控制，但是在精密金属掩膜板的开口区域的制作过程中，每个点状的开口区域之间都要留有一定的金属原材料作为连接桥，从而导致精密金属掩膜板的开口区域的大小减小，大大影响制作得到的OLED显示面板的开口率，使OLED显示面板的亮度及使用寿命不能达到要求，降低产品良率，限制了高分辨率的OLED显示面板的量产。
子像素渲染(Sub Pixel Rendering，SPR)技术是指相邻像素共用部分子像素的技术，该技术能够实现感官分辨率的提升，从而在具有相同子像素排列密度的情况下可以使显示器达到更高的感官分辨率，或者在保持相同的感官分辨率的情况下降低对显示器子像素的排列密度的要求。
发明内容
本发明的目的在于提供一种像素排列结构，应用于OLED显示面板中，能够提高OLED显示面板的分辨率，降低OLED显示面板的制作难度，并增加像素面积，提高OLED显示面板的亮度与寿命。
为实现上述目的，本发明提供一种像素排列结构，包括交替排列的多个第一像素行及多个第二像素行；
每一第一像素行包括交替且间隔排列的多个第一子像素和多个第二子像素，每一第二像素行包括间隔排列的多个第三子像素；
与所述第三子像素相邻的第一子像素和第二子像素形成虚拟三角形，所述第三子像素设置在与其相邻的第一子像素和第二子像素形成的虚拟三角形内，所述第一子像素和第二子像素设置在虚拟三角形的顶点。
所述第一子像素和第二子像素的面积相同，所述第一子像素和第二子像素的面积大于所述第三子像素的面积。
可选地，所述第三子像素的形状为正六边形。
可选地，所述第一子像素包括面积相同的三个第一正六边形部，每一第一正六边形部的一对相邻的侧边分别与另外两个第一正六边形部各自的一条侧边重合；
所述第二子像素包括面积相同的三个第二正六边形部，每一第二正六边形部的一对相邻的侧边分别与另外两个第二正六边形部各自的一条侧边重合。
所述第一子像素及第二子像素的轮廓边缘均具有三个内凹角；
所述第一子像素的轮廓边缘的三个内凹角分别与该第一子像素相邻的三个第三子像素各自的一个顶角相对；
所述第二子像素的轮廓边缘的三个内凹角分别与该第二子像素相邻的三个第三子像素各自的一个顶角相对。
可选地，所述第三子像素的形状为圆形。
可选地，所述第一子像素及第二子像素均包括三条第一边及三条第二边，所述第一边与第二边交替相连围成封闭图形；
所述第一边为向所述封闭图形的内部凹陷的弧线，所述第二边为向所述封闭图形外部突出的弧线。
与所述第三子像素相邻的两个第一子像素和一个第二子像素形成虚拟等边三角形；
与所述第三子像素相邻的两个第一子像素和一个第二子像素分别位于所述虚拟三角形的三个顶点，所述第三子像素的中心与所述虚拟三角形的中心重合。
与所述第三子像素相邻的一个第一子像素和两个第二子像素形成虚拟等边三角形；
与所述第三子像素相邻的一个第一子像素和两个第二子像素分别位于所述虚拟三角形的三个顶点，所述第三子像素的中心与所述虚拟三角形的中心重合。
可选地，所述第一子像素、第二子像素及第三子像素的颜色不同，且分别为红色子像素、蓝色子像素及绿色子像素中的一种。
本发明的有益效果：本发明提供的一种像素排列结构包括交替排列的多个第一像素行及多个第二像素行。每一第一像素行包括交替且间隔排列的多个第一子像素和多个第二子像素，每一第二像素行包括间隔排列的多个第三子像素。与所述第三子像素相邻的第一子像素和第二子像素形成虚拟三角形，所述第三子像素设置在与其相邻的第一子像素和第二子像素形成的虚拟三角形内。将该像素排列结构应用于OLED显示面板中，能够提高OLED显示面板的分辨率，降低OLED显示面板的制作难度，并增加像素面积，提高OLED显示面板的亮度与寿命。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发 明加以限制。
附图中，
图1为本发明的像素排列结构的第一实施例的结构示意图；
图2为本发明的像素排列结构的第二实施例的结构示意图；
图3为本发明的像素排列结构的第三实施例的结构示意图；
图4为本发明的像素排列结构的第三实施例提升子像素面积的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
本发明提供一种像素排列结构，主要应用于OLED显示面板，以提高OLED显示面板的分辨率，降低OLED显示面板的制作难度，并增加像素面积，提高OLED显示面板的亮度与寿命。
请参阅图1，在本发明的像素排列结构的第一实施例中，所述像素排列结构包括交替排列的多个第一像素行10及多个第二像素行20。每一第一像素行10包括交替且间隔排列的多个第一子像素31和多个第二子像素32，每一第二像素行20包括间隔排列的多个第三子像素33。与所述第三子像素33相邻的第一子像素31和第二子像素32形成虚拟三角形50，所述第三子像素33设置在与其相邻的第一子像素31和第二子像素32形成的虚拟三角形50内，所述第一子像素31和第二子像素32设置在虚拟三角形50的顶点。
具体地，如图1所示，在所述第一实施例中，所述第一子像素31和第二子像素32的面积相同，所述第一子像素31和第二子像素32的面积大于所述第三子像素33的面积。
具体地，如图1所示，在所述第一实施例中，与所述第三子像素33相邻的一个第一子像素31和两个第二子像素32形成等边虚拟三角形。与所述第三子像素33相邻的一个第一子像素31和两个第二子像素32分别位于所述虚拟三角形50的三个顶点，所述第三子像素33的中心与所述虚拟三角形50的中心重合。或者，在其他实施例中，如图2，与所述第三子像素33相邻的两个第一子像素31和一个第二子像素32形成虚拟等边三角形。与所述第三子像素33相邻的两个第一子像素31和一个第二子像素32分别位于所述虚拟三角形50的三个顶点，所述第三子像素33的中心与所述虚拟三角形50的中心重合。
进一步地，如图1所示，在所述第一实施例中，除了第一行第一像素行10以外，每一行第一像素行10均相对于其前一行第一像素行10向左平移0.5倍的相邻第一子像素31中心与第二子像素32中心之间的间距。
具体地，请参阅图1，每一所述第三子像素33对应设置在相邻间隔排列的第一子像素31和第二子像素32的间隙处。
具体地，请参阅图1，在所述第一实施例中，所述第三子像素33的形状为正六边形。所述第一子像素31包括面积相同的三个第一正六边形部311。每一第一正六边形部311的一对相邻的侧边分别与另外两个第一正六边形311部各自的一条侧边重合。所述第二子像素32包括面积相同的三个第二正六边形部321。每一第二正六边形部321的一对相邻的侧边分别与另外两个第二正六边形部321各自的一条侧边重合。由于第一子像素31包括三个面积相同的第一正六边形部311，第二子像素32包括三个面积相同的第二正六边形部321，使得所述第一子像素31及第二子像素32的轮廓边缘均具有三个内凹角。所述第一子像素31的轮廓边缘的三个内凹角分别与该第一子像素31相邻的三个第三子像素33各自的一个顶角相对。所述第二子像素32的轮廓边缘的三个内凹角分别与该第二子像素32相邻的三个第三子像素31各自的一个顶角相对。可以理解，第一子像素31包括面积相同的三个第一正六边形部311和第二子像素32包括面积相同的三个第二正六边形部321的结构是比较理想的结构，但在生产制程中，由于制程设备及条件的限制，第一子像素31和第二子像素32的结构与理想状态会有偏差，如第一正六边形部311和第二正六边形部321的顶角为圆弧状。优选地，所述第一子像素31、第二子像素32及第三子像素33的颜色不同，且分别为红色子像素、蓝色子像素及绿色子像素中的一种。在第一实施例中，所述第一子像素31、第二子像素32及第三子像素33分别发红光、蓝光及绿光，对应到OLED显示面板中，即所述第一子像素31、第二子像素32及第三子像素33分别包括发射红光、蓝光及绿光的有机发光二极管。当然，在本发明的其他实施例中，所述第一子像素31、第二子像素32及第三子像素33也可以发射其他颜色的光。
需要说明的是，本发明的像素排列结构的第一实施例中，通过设置与每一第三子像素33相邻的第一子像素31及第二子像素32之间形成虚拟三角形50，并将第三子像素33设置在对应的虚拟三角形50中，使像素之间的子像素可以进行共享，相较于传统的呈条形且依次排列的红绿蓝子像素结构，能够有效减少子像素的个数，从而在具有相同子像素排列密度的情况下可以使显示器达到更高的感官分辨率，在保持相同的感官分辨率的情 况下降低了对显示器子像素的排列密度的要求，降低OLED显示面板的制作难度。与此同时，在本发明的第一实施例中，通过设置第一子像素31及第二子像素32均采用由三个相同面积的正六边形部拼接而成的结构，均具有三个由中心向外延伸的部分，使得在保证各个子像素之间的间距的前提下，第一子像素31及第二子像素32的面积增加，进而使得将该像素排列结构应用于OLED显示面板后，OLED显示面板的亮度增加，使用寿命增加。
请参阅图2，为本发明的像素排列结构的第二实施例，所述第二实施例与上述第一实施例的区别在于，所述第二实施例的像素排列结构与第一实施例呈左右镜像，也即在所述第二实施例中，除了第一行第一像素行10以外，每一行第一像素行10均相对于其前一行第一像素行10向右平移0.5倍的相邻第一子像素31中心与第二子像素32中心之间的间距。其余均与所述第一实施例相同，在此不再进行重复描述。
请参阅图3，在本发明的像素排列结构第三实施例中，所述像素排列结构包括交替排列的多个第一像素行10’及多个第二像素行20’。每一第一像素行10’包括交替且间隔排列的多个第一子像素31’和多个第二子像素32’，每一第二像素行20’包括间隔排列的多个第三子像素33’。与所述第三子像素33’相邻的第一子像素31’和第二子像素32’形成虚拟三角形50’，所述第三子像素33’设置在与其相邻的第一子像素31’和第二子像素32’形成的虚拟三角形50’内，所述第一子像素31’和第二子像素32’设置在虚拟三角形50’的顶点。
具体地，如图3所示，在所述第三实施例中，所述第一子像素31’和第二子像素32’的面积相同，所述第一子像素31’和第二子像素32’的面积大于所述第三子像素33’的面积。
具体地，如图3所示，在所述第三实施例中，与所述第三子像素33’相邻的一个第一子像素31’和两个第二子像素32’形成虚拟等边三角形。与所述第三子像素33’相邻的一个第一子像素31’和两个第二子像素32’分别位于所述虚拟三角形50’的三个顶点，所述第三子像素33’的中心与所述虚拟三角形50’的中心重合。或者，在其他实施例中，与所述第三子像素33’相邻的两个第一子像素31’和一个第二子像素32’形成虚拟等边三角形。与所述第三子像素33’相邻的两个第一子像素31’和一个第二子像素32’分别位于所述虚拟三角形50’的三个顶点，所述第三子像素33’的中心与所述虚拟三角形50’的中心重合。
进一步地，如图3所示，在所述第三实施例中，除了第一行第一像素 行10’以外，每一行第一像素行10’均相对于其前一行第一像素行10’向左平移0.5倍的相邻第一子像素31’中心与第二子像素32’中心之间的间距。
具体地，请参阅图3，在所述第三实施例中，所述第三子像素33’的形状为圆形。所述第一子像素31’及第二子像素32’均包括三条第一边301’及三条第二边302’，所述第一边301’与第二边302’交替相连围成封闭图形。所述第一边301’为向所述封闭图形的内部凹陷的弧线，所述第二边302’为向所述封闭图形外部突出的弧线。
值得一提的是，在所述像素排列结构的第三实施例的理想状态下，所述第一子像素31’和第二子像素32’的形状应完全相同，且每一个第一子像素31’和第二子像素32’的三条第一边301’的曲率半径也相同，三条第二边的曲率半径302’相同，但在所述像素排列结构的第三实施例在实际制作过程中，由于制作误差的存在(例如蒸镀机状态不同导致的制作误差)，实际制得的所述第一子像素31’和第二子像素32’的形状可能略有不同，而每一个第一子像素31’的三条第一边301’和第二子像素32’的三条第一边301’的曲率半径也可能会稍有偏差，每一个第一子像素31’的三条第二边302’和第二子像素32’的三条第二边302’的曲率半径也可能会稍有偏差，这不会影响本发明的实现。
优选地，所述第一子像素31’、第二子像素32’及第三子像素33’的颜色不同，且分别为红色子像素、蓝色子像素及绿色子像素中的一种。在第三实施例中，所述第一子像素31’、第二子像素32’及第三子像素33’分别发红光、蓝光及绿光，对应到OLED显示面板中，即所述第一子像素31’、第二子像素32’及第三子像素33’分别包括发射红光、蓝光及绿光的有机发光二极管。当然，在本发明的其他实施例中，所述第一子像素31’、第二子像素32’及第三子像素33’也可以发射其他颜色的光。
需要说明的是，本发明的像素排列结构的第三实施例，通过设置与每一第三子像素33’相邻的第一子像素31’及第二子像素32’之间形成虚拟三角形50’，并将第三子像素33’设置在对应的虚拟三角形50’中，使像素之间的子像素可以进行共享，相较于传统的呈条形且依次排列的红绿蓝子像素结构，能够有效减少子像素的个数，从而在具有相同子像素排列密度的情况下可以使显示器达到更高的感官分辨率，在保持相同的感官分辨率的情况下降低了对显示器子像素的排列密度的要求，降低OLED显示面板的制作难度。与此同时，在实际生产中制作FMM时，无论蚀刻还是激光，在制作方形或带尖的图形都比较困难，在本发明的第三实施例中，通过设置第一子像素31’及第二子像素32’均采用三条第一边301’及三条第二边302’交替 围成的封闭图形，将第三子像素33’设置为圆形，更加符合扩散原理，能够有效降低FMM的制作难度，且圆形的第三子像素33’是相同面积中边长最小，效率最高的形状，且由于人眼有晕光效应，微小非圆发光体也会看成近似圆形，因此将第三子像素33’设置成圆形既能使得第三子像素33’效率最大化，又符合人眼的晕光效应。另外，请参阅图4，由于第一子像素31’及第二子像素32’均具有三个由中心向外延伸的部分，并且每一第一子像素31’的三条第一边301’分别与该第一子像素31’相邻的三个第三子像素33’相对，每一第二子像素32’的三条第一边301’分别与该第二子像素32’相邻的三个第三子像素33’相对。相对于正常设计第一子像素及第二子像素60’也为圆形，使得本发明的第三实施例中，第一子像素31’及第二子像素32’的面积均大于在保证各子像素之间间距时的正常的圆形第一子像素及第二子像素60’的面积，使得将该像素排列结构应用于OLED显示面板后，OLED显示面板的亮度增加，使用寿命增加。
综上所述，本发明的像素排列结构包括交替排列的多个第一像素行及多个第二像素行。每一第一像素行包括交替且间隔排列的多个第一子像素和多个第二子像素，每一第二像素行包括间隔排列的多个第三子像素。与所述第三子像素相邻的第一子像素和第二子像素形成虚拟三角形，所述第三子像素设置在与其相邻的第一子像素和第二子像素形成的虚拟三角形内。将该像素排列结构应用于OLED显示面板中，能够提高OLED显示面板的分辨率，降低OLED显示面板的制作难度，并增加像素面积，提高OLED显示面板的亮度与寿命。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (11)

  1. 一种像素排列结构，包括交替排列的多个第一像素行及多个第二像素行；
    每一第一像素行包括交替且间隔排列的多个第一子像素和多个第二子像素，每一第二像素行包括间隔排列的多个第三子像素；
    与所述第三子像素相邻的第一子像素和第二子像素形成虚拟三角形，所述第三子像素设置在与其相邻的第一子像素和第二子像素形成的虚拟三角形内，所述第一子像素和第二子像素设置在虚拟三角形的顶点。
  2. 如权利要求1所述的像素排列结构，其中，所述第一子像素和第二子像素的面积相同，所述第一子像素和第二子像素的面积大于所述第三子像素的面积。
  3. 如权利要求1所述的像素排列结构，其中，所述第三子像素的形状为正六边形。
  4. 如权利要求3所述的像素排列结构，其中，所述第一子像素包括面积相同的三个第一正六边形部，每一第一正六边形部的一对相邻的侧边分别与另外两个第一正六边形部各自的一条侧边重合；
    所述第二子像素包括面积相同的三个第二正六边形部，每一第二正六边形部的一对相邻的侧边分别与另外两个第二正六边形部各自的一条侧边重合。
  5. 如权利要求4所述的像素排列结构，其中，所述第一子像素及第二子像素的轮廓边缘均具有三个内凹角；
    所述第一子像素的轮廓边缘的三个内凹角分别与该第一子像素相邻的三个第三子像素各自的一个顶角相对；
    所述第二子像素的轮廓边缘的三个内凹角分别与该第二子像素相邻的三个第三子像素各自的一个顶角相对。
  6. 如权利要求1所述的像素排列结构，其中，所述第三子像素的形状为圆形。
  7. 如权利要求6所述的像素排列结构，其中，所述第一子像素及第二子像素均包括三条第一边及三条第二边，所述第一边与第二边交替相连围成封闭图形；
    所述第一边为向所述封闭图形的内部凹陷的弧线，所述第二边为向所述封闭图形外部突出的弧线。
  8. 如权利要求1所述的像素排列结构，其中，与所述第三子像素相邻的两个第一子像素和一个第二子像素形成虚拟等边三角形；
    与所述第三子像素相邻的两个第一子像素和一个第二子像素分别位于所述虚拟三角形的三个顶点，所述第三子像素的中心与所述虚拟三角形的中心重合。
  9. 如权利要求1所述的像素排列结构，其中，与所述第三子像素相邻的一个第一子像素和两个第二子像素形成虚拟等边三角形；
    与所述第三子像素相邻的一个第一子像素和两个第二子像素分别位于所述虚拟三角形的三个顶点，所述第三子像素的中心与所述虚拟三角形的中心重合。
  10. 如权利要求1所述的像素排列结构，其中，每一所述第三子像素对应设置在相邻间隔排列的第一子像素和第二子像素的间隙处。
  11. 如权利要求1所述的像素排列结构，其中，所述第一子像素、第二子像素及第三子像素的颜色不同，且分别为红色子像素、蓝色子像素及绿色子像素中的一种。
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