WO2020143026A1 - 像素排列结构、显示基板及显示装置 - Google Patents

像素排列结构、显示基板及显示装置 Download PDF

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Publication number
WO2020143026A1
WO2020143026A1 PCT/CN2019/071351 CN2019071351W WO2020143026A1 WO 2020143026 A1 WO2020143026 A1 WO 2020143026A1 CN 2019071351 W CN2019071351 W CN 2019071351W WO 2020143026 A1 WO2020143026 A1 WO 2020143026A1
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Prior art keywords
pixel
sub
arrangement structure
pixels
area
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English (en)
French (fr)
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皇甫鲁江
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to CN201980000057.2A priority Critical patent/CN112074895B/zh
Priority to US16/633,937 priority patent/US11195882B2/en
Priority to PCT/CN2019/071351 priority patent/WO2020143026A1/zh
Publication of WO2020143026A1 publication Critical patent/WO2020143026A1/zh
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/35Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/351Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/35Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/35Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/38Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

Definitions

  • the embodiments of the present disclosure relate to a pixel arrangement structure, a display substrate, and a display device.
  • the resolution of a display device can be improved by reducing the size of pixels and reducing the pitch between pixels.
  • the reduction in the size of the pixels and the pitch between the pixels also requires higher and higher precision in the manufacturing process, which may cause difficulty in the manufacturing process of the display device and increase in manufacturing cost.
  • the sub-pixel composition optimization technology and sub-pixel rendering (Sup-Pixel Rendering, SPR) technology can use the difference in resolution of the human eye to different color sub-pixels to change the conventional red, green and blue sub-pixels Simply define a pixel pattern.
  • the relatively small number of sub-pixels is used to simulate the performance of the same pixel resolution performance, thereby reducing the difficulty and cost of the manufacturing process.
  • At least one embodiment of the present disclosure provides a pixel arrangement structure, including: a plurality of first subpixels and a plurality of subpixel groups arranged in an array, wherein the plurality of first subpixels and the plurality of subpixel groups are arranged along Alternately arranged in one direction to form pixel rows, and alternately arranged in a second direction crossing the first direction to form pixel columns; each of the sub-pixel groups includes second sub-pixels sequentially arranged in the first direction, A third sub-pixel and a second sub-pixel; wherein the geometric centers of the first sub-pixel, the second sub-pixel and the third sub-pixel in the same pixel row are located on the same strip along the first direction On a straight line, the geometric centers of the first sub-pixel and the third sub-pixel in the same pixel column are located on the same straight line along the second direction; in the same pixel row, the second sub-pixel The ratio of the distance between the pixel and the geometric center of the adjacent third sub-pixel and the distance between the geometric center of the first
  • the geometric centers of the four first sub-pixels adjacent to each of the sub-pixel groups are four vertices of a square or square-like.
  • the size of each third sub-pixel along the first direction is 1/1/the size of each sub-pixel group along the first direction 3-1/2.
  • the size of each second sub-pixel in the second direction is the same as the size of each third sub-pixel in the second direction.
  • the size of each first sub-pixel along the second direction is 1/1/the size of each sub-pixel group along the second direction 2-1.
  • the area of each first sub-pixel is the same as the area of each sub-pixel group, the area of each second sub-pixel and each The areas of the third sub-pixels are the same.
  • the area of each first sub-pixel is 1/2 of the area of each sub-pixel group, and the area of each third sub-pixel The area of each first sub-pixel is the same.
  • the area of each second sub-pixel is 1/2 of the area of each third sub-pixel.
  • the first direction and the second direction are perpendicular to each other.
  • the shapes of the first sub-pixel, the second sub-pixel, and the third sub-pixel are all rectangular.
  • the first subpixel includes a red subpixel
  • the second subpixel includes a green subpixel
  • the third subpixel includes a blue subpixel
  • At least one embodiment of the present disclosure also provides a display substrate including: a base substrate; and a pixel arrangement structure provided on the base substrate; wherein the pixel arrangement structure includes pixels provided by any embodiment of the present disclosure Arrange the structure.
  • the first subpixel includes a first pixel electrode
  • the second subpixel includes a second pixel electrode
  • the third subpixel includes a third pixel electrode
  • the first sub-pixel further includes a first color light-emitting layer disposed on the first pixel electrode
  • the second sub-pixel further includes a The second color light-emitting layer on the second pixel electrode
  • the third sub-pixel further includes a third color light-emitting layer disposed on the third pixel electrode.
  • the display substrate is a color filter substrate
  • the first sub-pixel includes a first color filter layer
  • the second sub-pixel includes a second color filter layer
  • the third sub-pixel includes a third color filter layer.
  • At least one embodiment of the present disclosure also provides a display device, including the display substrate provided by any embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a pixel arrangement structure
  • FIG. 2 is a schematic diagram of a pixel arrangement structure provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of another pixel arrangement structure provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of yet another pixel arrangement structure provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of yet another pixel arrangement structure provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another display substrate according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of yet another display substrate provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
  • FIG. 1 shows a schematic diagram of a pixel arrangement structure.
  • the pixel arrangement structure 100 adopts a typical sub-pixel formation optimized (virtual) pixel method—strip-shaped RGBG arrangement (RGBG-stripes), which includes: a plurality of first sub-pixels arranged in an array A group and a plurality of second sub-pixel groups, wherein the plurality of first sub-pixel groups and the plurality of second sub-pixel groups are alternately arranged along a first direction to form a pixel row, along a second direction crossing the first direction Alternately arranged to form a pixel column; each first sub-pixel group includes one red sub-pixel 0110 and one green sub-pixel 0120 sequentially arranged in the first direction, and each second sub-pixel group includes one sequentially arranged in the first direction A blue sub-pixel 0130 and a green sub-pixel 0120; wherein, in the second direction, the green sub-pixel and the green sub-pixel are aligned, and the red and blue sub-pixels
  • the red sub-pixel 0110, the green sub-pixel 0120, and the blue sub-pixel 0130 adjacent in the first direction represent the gray center C04
  • the position is dominated by the position of the geometric center C02 of the green sub-pixel 0120, but is affected by the position of the geometric center C01 of the red sub-pixel 0110, and the influence of the position of the geometric center C03 of the blue sub-pixel 0130 is approximately negligible.
  • the gray center C04 is located approximately on the geometric center line C01-C02 of the red sub-pixel 0110 and the adjacent green sub-pixel 0120, and is located at a position away from the geometric center C02 of the green sub-pixel 0120.
  • Line C01-C02 is located at 1/3 of the length.
  • the distribution of the gray center C04 determined according to the positions of the geometric centers C01, C02, C03 of the red sub-pixel 0110, green sub-pixel 0120, and blue sub-pixel 0130 in the pixel arrangement structure 100 is uneven .
  • the distance between adjacent gray centers has two values. Among them, the distance between the two gray centers on both sides of the geometric center C01 of the red sub-pixel 0110 takes a smaller value. The distance between the two gray centers on both sides of the geometric center C03 of the color sub-pixel 0130 takes a larger value.
  • the pixel arrangement structure 100 represents a continuous white (gray) figure/pattern
  • a relatively uniform area with white (gray) components mainly in the first direction may appear grainy (closer) when the resolution is insufficient
  • the two adjacent grayscale centers are difficult to distinguish and are visually merged into one by the human eye.
  • the thin lines in the second direction may appear unsmooth, which is not conducive to improving the display quality.
  • the RGBG-stripes (virtual) pixel technology after the above pixel arrangement structure 100 and SPR technology can reduce part of the red and blue sub-pixels and reduce the high PPI sub-pixel graphics under the same PPI, compared with the typical RGB pixel arrangement structure The difficulty of crafting. However, the reduction of red and blue sub-pixels will cause the loss of (virtual) pixel performance and effect in RGBG-stripes (virtual) pixel technology. In addition to using appropriate SPR technology to compensate, it can also be done from the pixel arrangement structure. Improvement, so that the performance of the (virtual) pixel in the RGBG-stripes (virtual) pixel technology and the red, green, and blue pixels of the RGB pixel arrangement structure are as close as possible.
  • AMOLED active matrix organic light emitting diode
  • FMM fine metal mask
  • An embodiment of the present disclosure provides a pixel arrangement structure including: a plurality of first subpixels and a plurality of subpixel groups arranged in an array, wherein the plurality of first subpixels and the plurality of subpixels Groups are alternately arranged along the first direction to form pixel rows, and alternately arranged along the second direction crossing the first direction to form pixel columns; each of the sub-pixel groups includes second sequentially arranged along the first direction A sub-pixel, a third sub-pixel and a second sub-pixel; wherein the geometric centers of the first sub-pixel, the second sub-pixel and the third sub-pixel in the same pixel row are located along the first direction On the same straight line, the geometric centers of the first sub-pixel and the third sub-pixel in the same pixel column are on the same straight line along the second direction; in the same pixel row, the The ratio of the distance between the geometric center of the second subpixel and the adjacent third subpixel and the distance between the geometric center of the first subpixel and the third subpixel in the adjacent subpixel group Greater
  • the pixel arrangement structure provided by the embodiments of the present disclosure allows the geometric center of the second sub-pixel to be closer to the geometric center of the third sub-pixel, thereby making the gray-scale center distribution more uniform, improving visual graininess and unevenness, and Improve the display quality of the pixel arrangement structure.
  • FIG. 2 is a schematic diagram of a pixel arrangement structure provided by an embodiment of the present disclosure.
  • the pixel arrangement structure 200 includes a plurality of first sub-pixels 110 and a plurality of sub-pixel groups 140 arranged in an array. As shown in FIG.
  • each sub-pixel The group 140 includes second sub-pixels 120, third sub-pixels 130, and second sub-pixels 120 arranged in sequence along the first direction; wherein, the first sub-pixels 110, second sub-pixels 120, and third sub-pixels in the same pixel row
  • the geometric center of the pixel 130 is located on the same straight line 101 along the first direction
  • the geometric center of the first and third sub-pixels 110 and 130 in the same pixel column is located on the same straight line 102 along the second direction;
  • the distance L2 that is, the length of the line segment C2-C3 in FIG.
  • the ratio of the distance L1 (that is, the length of the line segments C1-C3 in FIG. 2) of the geometric center of the third sub-pixel 130 in is greater than or equal to 1/4 and less than 1/2.
  • the ratio of L2 to L1 may be 0.3, 0.35, 0.4, 0.45, and so on.
  • the pixel arrangement structure 100 In the pixel arrangement structure 100 shown in FIG. 1, with the red sub-pixel as the first sub-pixel, the green sub-pixel as the second sub-pixel, and the blue sub-pixel as the third sub-pixel, the pixel arrangement structure 100 and the pixel arrangement structure 200 Similarly, the difference is that in the pixel arrangement structure 100, the ratio of L2 and L1 is equal to 1/2; while in the pixel arrangement structure 200, the ratio of L2 and L1 is less than 1/2 and greater than or equal to 1/4.
  • the pixel arrangement structure 200 brings the geometric center of the second sub-pixel closer to the geometric center of the third sub-pixel, so that in the first direction, the adjacent grayscale that originally takes a smaller value
  • the pitch of the centers will increase, while the pitch of the adjacent gray centers that originally took a larger value will decrease, thereby making the gray center distribution more uniform, improving the visual graininess and the feeling of unevenness, and thus improving the pixel arrangement
  • the display quality of the structure is compared with the pixel arrangement structure 100, the pixel arrangement structure 200 brings the geometric center of the second sub-pixel closer to the geometric center of the third sub-pixel, so that in the first direction, the adjacent grayscale that originally takes a smaller value
  • the pitch of the centers will increase, while the pitch of the adjacent gray centers that originally took a larger value will decrease, thereby making the gray center distribution more uniform, improving the visual graininess and the feeling of unevenness, and thus improving the pixel arrangement
  • the display quality of the structure is compared with the pixel arrangement structure 100.
  • FIG. 2 shows the case where the ratio of L2 to L1 is equal to 1/4.
  • the interval between adjacent gray centers has only one value, that is, the gray center is in the first direction Evenly distributed.
  • the ratio of L2 to L1 is less than 1/4, the distribution of the gray center in the first direction begins to become uneven, and at the same time, it will also cause the second sub-pixel 120 and the third sub-pixel 130 to be in the first direction
  • the size of the pixel is reduced, so that the area of the second sub-pixel 120 and the third sub-pixel 130 is reduced, and thus the life of the second sub-pixel 120 and the third sub-pixel 130 in the AMOLED display device is shortened, which is not conducive to extending the AMOLED display device Service life.
  • the geometric centers C1 of the four first sub-pixels 110 adjacent to each sub-pixel group 140 are the four vertices of a square or square-like 150.
  • the pitch of the gray center in the second direction can be equal to or close to the pitch in the first direction, so that the distribution of the gray center in the plane can be more uniform.
  • the square mentioned here is a strict square, and a square-like refers to a rhombus with any angle floating up and down 5 degrees at a right angle.
  • the size of each third sub-pixel 130 in the first direction may be 1/3-1/2 of the size of each sub-pixel group 140 in the first direction.
  • FIG. 2 shows a case where the size of each third sub-pixel 130 in the first direction is 1/3 of the size of each sub-pixel group 140 in the first direction.
  • the third sub-pixel 130 in the sub-pixel group 140 can have a larger area, so that, for example, in the AMOLED display device, the light-emitting area of the third sub-pixel 130 can have a larger area, which is beneficial for extension
  • the lifespan of the third sub-pixel 130 for example, the third sub-pixel 130 is a blue sub-pixel
  • the size of each second sub-pixel 120 in the second direction is the same as the size of each third sub-pixel 130 in the second direction.
  • the size of each second subpixel 120 in the second direction and the size of each third subpixel 130 in the second direction may be the same as the size of each subpixel group 140 in the second direction.
  • the second sub-pixel 120 and the third sub-pixel 130 in the sub-pixel group 140 can have a larger area, which is advantageous for extending the second sub-pixel 120 and the third sub-pixel in the AMOLED display device, for example 130 life.
  • the size of each first sub-pixel 110 in the second direction is 1/2-1 of the size of each sub-pixel group 140 in the second direction.
  • FIG. 2 shows that the size of the first subpixel 110 in the second direction is twice the size of the subpixel group 140 in the second direction, that is, the size of the first subpixel 110 in the second direction and the subpixel group 140 The case where the dimensions along the second direction are the same.
  • FIG. 3 is a schematic diagram of another pixel arrangement structure provided by an embodiment of the present disclosure. Compared with FIG. 2, FIG. 3 shows a case where the ratio of the size of the first sub-pixel 110 in the second direction to the size of the sub-pixel group 140 in the second direction is between 1/2 and 1.
  • the areas of the second sub-pixel 120 and the third sub-pixel 130 can be further enlarged to increase the second sub-pixel and the third Subpixel lifespan.
  • a region 160 (in FIG. 3) is formed in the pixel arrangement structure 300 Dotted frame).
  • the area 160 includes a part of the second sub-pixel 120 and a part of the third sub-pixel 130 and an empty area 165. If the size of the area 160 in the second direction is too large, the display effect may be affected. Therefore, in order to avoid this problem, the proportional relationship between the size of the first sub-pixel 110 in the second direction and the size of the sub-pixel group 140 in the second direction may be limited. For example, in this embodiment, the proportional relationship is 1/2-1.
  • the pixel arrangement structure 200 shown in FIG. 2 and the pixel arrangement structure 300 shown in FIG. 3 both show that the ratio of L2 to L1 is equal to 1/4 (the gray center is close to strictly uniform distribution) Situation, but the embodiments of the present disclosure are not limited to this. Due to the limited resolution of the human eye, the distribution of gray centers slightly deviates from the strictly uniform distribution shown in Figures 2 and 3, and will not be noticeable to the human eye, as long as it is more uniform than the distribution of gray centers shown in Figure 1. That's it.
  • FIG. 4 is a schematic diagram of yet another pixel arrangement structure provided by an embodiment of the present disclosure.
  • the ratio of L2 and L1 is greater than 1/4 and less than 1/2, and the uniformity of the gray center distribution is not as good as the pixel arrangement structure 200 shown in FIG. 2, but is superior to
  • the pixel arrangement structure 100 shown in FIG. 1 therefore still improves the uniformity of the gray center distribution, which can improve the visual graininess and the sense of unevenness, thereby improving the display quality.
  • each first sub-pixel 110 is the same as the area of each sub-pixel group 140, and the area of each second sub-pixel 120 and each The area of each third sub-pixel 130 is the same.
  • the area of the first sub-pixel 110 is the same as the area of the sub-pixel group 140.
  • it is equivalent to reducing the area of the first sub-pixel 110 and increasing the area of the sub-pixel group 140, which can be increased
  • the area of the third sub-pixel 130 in the sub-pixel group 140 is beneficial to prolong the life of the third sub-pixel 130 in the AMOLED display device, for example.
  • the area of the second sub-pixel 120 is the same as the area of the third sub-pixel 130, which can balance the goal of extending the life of the third sub-pixel 130 and making the gray center C4 distribution more uniform.
  • the pixel arrangement structure 400 if the area of the third sub-pixel 130 is increased, the life of the third sub-pixel 130 will be prolonged, but the area of the second sub-pixel 120 will be reduced, so that the second sub-pixel 120
  • the geometric center C2 of is away from the geometric center C3 of the third sub-pixel 130, so that the gray center C4 is closer to the geometric center C1 of the first sub-pixel 110, thereby reducing the uniformity of the gray center distribution.
  • FIG. 5 is a schematic diagram of yet another pixel arrangement structure provided by an embodiment of the present disclosure.
  • the ratio of L2 to L1 is greater than 1/4 and less than 1/2, and the uniformity of the gray center distribution is not as good as the pixel arrangement structure 300 shown in FIG. 3, but is superior to
  • the pixel arrangement structure 100 shown in FIG. 1 therefore still improves the uniformity of the gray center distribution, which can improve the visual graininess and the sense of unevenness, thereby improving the display quality.
  • the area of each first sub-pixel 110 is 1/2 of the area of each sub-pixel group 140, and the area of each third sub-pixel 130 The area is the same as the area of each first sub-pixel 110.
  • the pixel arrangement structure 500 shown in FIG. 5 enables the second sub-pixel 120 and the third sub-pixel 130 to have a size by increasing the size of the sub-pixel group 140 in the second direction A larger area is beneficial for extending the life of the third sub-pixel 130.
  • the region 160 (the dotted frame portion in FIG. 5) formed in the pixel arrangement structure 500 shown in FIG. 5 includes only a part of the second sub-pixel 120 and the third sub-pixel 130 Part of the image, instead of including the empty area 165, can improve the aperture ratio of the entire pixel arrangement structure.
  • each second sub-pixel 120 is 1/2 of the area of each third sub-pixel 130.
  • the second sub-pixel 120 in the sub-pixel group 140 also has a larger area, which is beneficial to prolong the life of the second sub-pixel 120 in, for example, an AMOLED display device.
  • the first direction and the second direction are perpendicular to each other.
  • the embodiments of the present disclosure include but are not limited to this.
  • the first subpixel 110 includes a red subpixel
  • the second subpixel 120 includes a green subpixel
  • the third subpixel 130 includes a blue subpixel.
  • the display modes that can be adopted by the pixel arrangement structure provided by the embodiments of the present disclosure are not limited to the above-mentioned red, green, and blue (RGB) modes.
  • RGB red, green, and blue
  • the geometric center of each sub-pixel may be the center of gravity of the plane geometric shape of each sub-pixel; the plane geometric shape of each sub-pixel may be a regular figure (such as shown in FIG. 2 to FIG. 5 Can be irregular shapes, which is not limited in the present disclosure, as long as the distribution of the geometric centers of the sub-pixels meets the requirements of the embodiments of the present disclosure.
  • each sub-pixel in the drawings can be understood to include only the light-emitting area, and can also be understood to include both the light-emitting area and the non-light-emitting area, and the non-light-emitting area separates the light-emitting areas of adjacent sub-pixels
  • the non-light emitting area includes a black matrix. Therefore, each sub-pixel in the drawing may not represent the area of its light-emitting area, and the area of the light-emitting area of each sub-pixel may be smaller than the area of each sub-pixel.
  • the light-emitting area of each sub-pixel may be determined by the shape of at least one of the electrode, the light-emitting layer, and the pixel definition layer.
  • the light-emitting area of each sub-pixel may be the contact area of the pixel electrode and the light-emitting layer.
  • the light emitting layer here may include an electroluminescent layer and other organic functional layers such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer. It should be noted that the geometric center of the light-emitting area of each sub-pixel may coincide with the geometric center of each sub-pixel.
  • a sub-pixel rendering algorithm may be used for driving.
  • a neighboring first sub-pixel and a second sub-pixel form a virtual pixel
  • a neighboring second sub-pixel and a third sub-pixel form a virtual pixel
  • At least one embodiment of the present disclosure also provides a display substrate.
  • 6 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure.
  • the display substrate includes a base substrate 601 and a pixel arrangement structure 600 provided on the base substrate 601.
  • the pixel arrangement structure 600 can adopt the pixel arrangement structure provided by any of the above examples. Since the display substrate adopts the pixel arrangement structure provided by any of the above examples, the display substrate has the beneficial effect of the pixel arrangement structure included in the display substrate. For example, the display substrate can make the gray center distribution more uniform and improve the visual graininess And not smooth feeling, thereby improving the display quality.
  • the display substrate includes a base substrate 701 and a pixel arrangement structure provided on the base substrate 701. It should be noted that FIG. 5 shows only a part of the pixel arrangement structure. As shown in FIG. 5, in this pixel arrangement structure, the first subpixel 110 includes a first pixel electrode 111, the second subpixel 120 includes a second pixel electrode 121, and the third color subpixel 130 includes a third pixel electrode 131.
  • the display substrate may be an array substrate.
  • the display substrate may be an AMOLED display substrate or an array substrate for liquid crystal display.
  • the display substrate includes a base substrate 801 and a pixel arrangement structure provided on the base substrate 801.
  • the first sub-pixel 110 includes not only the first pixel electrode 111 but also the first color light-emitting layer 112 disposed on the first pixel electrode 111
  • the second sub-pixel 120 includes not only the second pixel electrode 121 but also The second color light emitting layer 122 provided on the second pixel electrode 121 is included
  • the third color sub-pixel 130 includes not only the third pixel electrode 131 but also the third color light emitting layer 132 provided on the third pixel electrode 131.
  • the display substrate may be an array substrate, for example, the display substrate may be an AMOLED display substrate.
  • the first pixel electrode 111 is configured to drive the first color light emitting layer 112 to emit light.
  • the shape of the first pixel electrode 111 may be the same as the shape of the first sub-pixel 110.
  • the embodiments of the present disclosure include but are not limited to this, the shape of the first pixel electrode 111 may be different from the shape of the first sub-pixel 110, and the shape of the light-emitting area of the first sub-pixel 110 may be defined by the pixel defining layer.
  • the shape of the light emitting area of the first subpixel may be the same as or different from the shape of the first subpixel, and the area of the light emitting area of the first subpixel may be smaller than the area of the first subpixel.
  • the specific shape of the first color light-emitting layer may be set according to the manufacturing process, which is not limited by the embodiments of the present disclosure.
  • the second pixel electrode 121 is configured to drive the second color light emitting layer 122 to emit light.
  • the shape of the second pixel electrode 121 may be the same as the shape of the second sub-pixel 120.
  • the embodiments of the present disclosure include but are not limited to this, the shape of the second pixel electrode 121 may be different from the shape of the second sub-pixel 120, and the shape of the light emitting region of the second sub-pixel 120 may be defined by the pixel defining layer.
  • the shape of the light emitting area of the second subpixel may be the same as or different from the shape of the second subpixel, and the area of the light emitting area of the second subpixel may be smaller than the area of the second subpixel.
  • the specific shape of the second color light-emitting layer may be set according to the manufacturing process, which is not limited by the embodiments of the present disclosure.
  • the third pixel electrode 131 is configured to drive the third color light emitting layer 132 to emit light.
  • the shape of the third pixel electrode 131 may be the same as the shape of the third sub-pixel 130.
  • the embodiments of the present disclosure include but are not limited to this, the shape of the third pixel electrode 131 may be different from the shape of the third sub-pixel 130, and the shape of the light-emitting region of the third sub-pixel 130 may be defined by the pixel defining layer.
  • the shape of the light emitting area of the third subpixel may be the same as or different from the shape of the third subpixel, and the area of the light emitting area of the third subpixel may be smaller than the area of the third subpixel.
  • the specific shape of the third color light-emitting layer may be set according to the manufacturing process, which is not limited by the embodiments of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
  • the display panel in addition to the base substrate 701 on which the pixel arrangement structure is provided as shown in FIG. 7, the display panel also includes a color filter substrate 901 on which the pixel arrangement structure is provided, and the color filter
  • the pixel arrangement structure on the substrate 901 is the same as the pixel arrangement structure on the base substrate 701. It should be noted that FIG. 9 shows only a part of the pixel arrangement structure.
  • the display substrate provided by the embodiments of the present disclosure includes a color filter substrate, for example, the color filter substrate is the color filter substrate 901 in FIG. 9.
  • the first sub-pixel 110 on the color filter substrate 901 includes the first color filter layer 113
  • the second sub-pixel 120 on the color filter substrate 901 includes the second color filter layer 123
  • the color filter substrate 901 The upper third sub-pixel 130 includes a third color filter layer 133.
  • the display panel shown in FIG. 9 can be used not only for a liquid crystal display panel but also for a display panel using a white light OLED combined with a color film substrate mode.
  • a liquid crystal layer may be further included between the base substrate 701 and the color filter substrate 901.
  • the color filter substrate 901 in the display panel further includes black disposed between the first color filter layer 113, the second color filter layer 123 and the third color filter layer 133 Matrix 170.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel in the pixel arrangement structure may include at least a part of the pixel structure that implements the pixel function.
  • the structure is not particularly limited.
  • each sub-pixel may be an OLED light-emitting element or a liquid crystal display pixel, which may include at least one of a pixel electrode, a light-emitting layer, and a color filter layer.
  • the display substrate including the pixel arrangement structure in the embodiments of the present disclosure may be any one of an OLED display substrate, an array substrate for liquid crystal display, and a color filter substrate.
  • At least one embodiment of the present disclosure also provides a display device.
  • the display device includes any one of the display substrates provided in the above embodiments. Therefore, the display device can make the gray scale center distribution more uniform, thereby improving the visual graininess and the uneven feeling, thereby improving the display quality.
  • the display device may be any product or component with a display function, such as a smart phone, tablet computer, television, display, notebook computer, digital photo frame, and navigator.
  • the display device may also include other conventional components, which are not limited by the embodiments of the present disclosure.

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Abstract

一种像素排列结构(200、300、400、500、600)、显示基板、显示装置。像素排列结构(200、300、400、500、600)包括:阵列排布的多个第一子像素(110)和多个子像素组(140),其中,多个第一子像素(110)和多个子像素组(140)沿第一方向交替排列以形成像素行,沿与第一方向交叉的第二方向交替排列以形成像素列;每个子像素组(140)包括沿第一方向依次排列的第二子像素(120)、第三子像素(130)和第二子像素(120);其中,同一像素行中的第一子像素(110)、第二子像素(120)和第三子像素(130)的几何中心位于沿第一方向的同一条直线上,同一像素列中的第一子像素(110)和第三子像素(130)的几何中心位于沿第二方向的同一条直线上;在同一像素行中,第二子像素(120)和相邻的第三子像素(130)的几何中心的距离与第一子像素(110)和相邻的子像素组中的第三子像素(130)的几何中心的距离的比例大于或等于1/4且小于1/2。

Description

像素排列结构、显示基板及显示装置 技术领域
本公开的实施例涉及一种像素排列结构、显示基板及显示装置。
背景技术
随着显示技术的不断发展,人们对于显示装置的分辨率的要求也越来越高。由于具有显示质量高等优点,高分辨率显示装置的应用范围也越来越广。通常,可通过减小像素的尺寸和减小像素间的间距来提高显示装置的分辨率。然而,像素的尺寸和像素间的间距的减少对制作工艺的精度要求也越来越高,从而会导致显示装置的制作工艺的难度和制作成本的增加。
另一方面,像素的子像素构成优化技术和子像素渲染(Sup-Pixel Rendering,SPR)技术可以利用人眼对不同色彩子像素的分辨率的差异,改变常规的红、绿、蓝三色子像素简单定义一个像素的模式。通过不同的像素间共享某些位置分辨率不敏感颜色的子像素,用相对较少的子像素数,模拟实现相同的像素分辨率表现能力,从而降低制作工艺的难度和制作成本。
发明内容
本公开至少一个实施例提供一种像素排列结构,包括:阵列排布的多个第一子像素和多个子像素组,其中,所述多个第一子像素和所述多个子像素组沿第一方向交替排列以形成像素行,沿与所述第一方向交叉的第二方向交替排列以形成像素列;每个所述子像素组包括沿所述第一方向依次排列的第二子像素、第三子像素和第二子像素;其中,同一像素行中的所述第一子像素、所述第二子像素和所述第三子像素的几何中心位于沿所述第一方向的同一条直线上,同一像素列中的所述第一子像素和所述第三子像素的几何中心位于沿所述第二方向的同一条直线上;在所述同一像素行中,所述第二子像素和相邻的所述第三子像素的几何中心的距离与所述第一子像素和相邻的所述子像素组中的所述第三子像素的几何中心的距离的比例大于或等于1/4且小于1/2。
例如,在本公开一实施例提供的像素排列结构中,与每个所述子像素组相邻的四个所述第一子像素的几何中心为一个正方形或类正方形的四个顶点。
例如,在本公开一实施例提供的像素排列结构中,每个所述第三子像素沿所述第一方向的尺寸为每个所述子像素组沿所述第一方向的尺寸的1/3-1/2。
例如,在本公开一实施例提供的像素排列结构中,每个所述第二子像素沿所述第二方向的尺寸与每个所述第三子像素沿所述第二方向的尺寸相同。
例如,在本公开一实施例提供的像素排列结构中,每个所述第一子像素沿所述第二方向的尺寸为每个所述子像素组沿所述第二方向的尺寸的1/2-1。
例如,在本公开一实施例提供的像素排列结构中,每个所述第一子像素的面积与每个所述子像素组的面积相同,每个所述第二子像素的面积和每个所述第三子像素的面积相同。
例如,在本公开一实施例提供的像素排列结构中,每个所述第一子像素的面积为每个所述子像素组的面积的1/2,每个所述第三子像素的面积和每个所述第一子像素的面积相同。
例如,在本公开一实施例提供的像素排列结构中,每个所述第二子像素的面积为每个所述第三子像素的面积的1/2。
例如,在本公开一实施例提供的像素排列结构中,所述第一方向和所述第二方向彼此垂直。
例如,在本公开一实施例提供的像素排列结构中,所述第一子像素、所述第二子像素和所述第三子像素的形状均为矩形。
例如,在本公开一实施例提供的像素排列结构中,所述第一子像素包括红色子像素,所述第二子像素包括绿色子像素,所述第三子像素包括蓝色子像素。
本公开至少一个实施例还提供一种显示基板,包括:衬底基板;以及设置在所述衬底基板上的像素排列结构;其中,所述像素排列结构包括本公开任一实施例提供的像素排列结构。
例如,在本公开一实施例提供的显示基板中,所述第一子像素包括第 一像素电极,所述第二子像素包括第二像素电极,所述第三子像素包括第三像素电极。
例如,在本公开一实施例提供的显示基板中,所述第一子像素还包括设置在所述第一像素电极上的第一颜色发光层,所述第二子像素还包括设置在所述第二像素电极上的第二颜色发光层,所述第三子像素还包括设置在所述第三像素电极上的第三颜色发光层。
例如,在本公开一实施例提供的显示基板中,所述显示基板为彩膜基板,所述第一子像素包括第一滤色层,所述第二子像素包括第二滤色层,所述第三子像素包括第三滤色层。
本公开至少一个实施例还提供一种显示装置,包括本公开任一实施例提供的显示基板。
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为一种像素排列结构的示意图;
图2为本公开一实施例提供的一种像素排列结构的示意图;
图3为本公开一实施例提供的另一种像素排列结构的示意图;
图4为本公开一实施例提供的再一种像素排列结构的示意图;
图5为本公开一实施例提供的又一种像素排列结构的示意图;
图6为本公开一实施例提供的一种显示基板的结构示意图;
图7为本公开一实施例提供的另一种显示基板的结构示意图;
图8为本公开一实施例提供的又一种显示基板的结构示意图;以及
图9为本公开一实施例提供的一种显示面板的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开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公开的一部分实施例,而不是全部的实施例。基于所描述的本公开的实施例,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,都属于本公开保护的范围。
除非另外定义,本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。
图1示出了一种像素排列结构示意图。如图1所示,该像素排列结构100采用一种典型的子像素构成优化(虚拟)像素方式——条状RGBG排列(RGBG-stripes),其包括:阵列排布的多个第一子像素组和多个第二子像素组,其中,多个第一子像素组和所述多个第二子像素组沿第一方向交替排列以形成像素行,沿与第一方向交叉的第二方向交替排列以形成像素列;每个第一子像素组包括沿第一方向依次排列的一个红色子像素0110和一个绿色子像素0120,每个第二子像素组包括沿第一方向依次排列的一个蓝色子像素0130和一个绿色子像素0120;其中,在第二方向上,绿色子像素与绿色子像素对齐,红色子像素和蓝色子像素交替排列且相互对齐。该像素排列中各子像素均匀分布,易于实现高PPI(Pixel Per Inch)显示。
在研究中,本申请的发明人注意到:在表现白平衡时,绿色G占有约63%的亮度,红色R占有约32%的亮度,蓝色B占有约5%的亮度(具体比例与白平衡和基色色坐标相关)。因此,如图1中椭圆形虚线框所示,在像素排列结构100中,在第一方向上相邻的红色子像素0110、绿色子像素0120和蓝色子像素0130表现的灰度中心C04的位置由绿色子像素0120的几何中心C02的位置主导,但是会受到红色子像素0110的几何中心C01的位置的影响,而蓝色子像素0130的几何中心C03的位置的影响近似可以忽略。具体地,该灰度中心C04大约位于红色子像素0110和相邻的绿色子像素0120的几何中心连线C01-C02上,且位于距离绿色子像素0120的几何中心C02的位置大约该几何中心连线C01-C02长度的1/3的位置处。
如图1所示,根据像素排列结构100中的红色子像素0110、绿色子像素0120和蓝色子像素0130的几何中心C01、C02、C03的位置确定的灰 度中心C04的分布是不均匀的。例如,在第一方向上,相邻的灰度中心的间距有两个取值,其中,在红色子像素0110的几何中心C01两侧的两个灰度中心的间距取较小值,在蓝色子像素0130的几何中心C03两侧的两个灰度中心的间距取较大值。因此,导致该像素排列结构100在表现连续白(灰)图形/图案时,在第一方向上表现白(灰)成分为主的相对均匀的区域分辨率不足时可能出现颗粒感(距离较近的相邻的两个灰度中心难以分辨,被人眼视觉上合二为一),在第二方向上表现细线则可能出现不平滑的感觉,不利于提高显示质量。
采用上述像素排列结构100和SPR技术后的RGBG-stripes(虚拟)像素技术,可以在相同PPI下,相对于典型的RGB像素排列结构减少部分红色、蓝色子像素,降低高PPI子像素图形化工艺的制作难度。但是,红色、蓝色子像素的减少会造成RGBG-stripes(虚拟)像素技术中(虚拟)像素表现能力和效果的损失,除了采用适当的SPR技术进行弥补外,还可以从像素排列结构上进行改进,从而使RGBG-stripes(虚拟)像素技术中(虚拟)像素表现效果和RGB像素排列结构的红、绿、蓝像素的表现效果尽量接近。
为了制作具有高分辨率的显示装置,需要减少像素的尺寸和像素间的间距;然而,像素的尺寸和像素间的间距的减少对制作工艺的精度要求也越来越高,从而会导致显示装置的制作工艺的难度和制作成本的增加。例如,在制作具有高分辨率的有源矩阵有机发光二极管(AMOLED)显示装置时,由于精细金属掩膜(FMM)技术的工艺精度的限制,制作具有高分辨率(例如,大于300PPI像素密度)的有源矩阵有机发光二极管(AMOLED)显示装置制作工艺难度大、制作成本较高。
本公开的实施例提供一种像素排列结构,该像素排列结构包括:阵列排布的多个第一子像素和多个子像素组,其中,所述多个第一子像素和所述多个子像素组沿第一方向交替排列以形成像素行,沿与所述第一方向交叉的第二方向交替排列以形成像素列;每个所述子像素组包括沿所述第一方向依次排列的第二子像素、第三子像素和第二子像素;其中,同一像素行中的所述第一子像素、所述第二子像素和所述第三子像素的几何中心位于沿所述第一方向的同一条直线上,同一像素列中的所述第一子像素和所述第三子像素的几何中心位于沿所述第二方向的同一条直线上;在所述同 一像素行中,所述第二子像素和相邻的所述第三子像素的几何中心的距离与所述第一子像素和相邻的所述子像素组中的所述第三子像素的几何中心的距离的比例大于或等于1/4且小于1/2。本公开的实施例还提供对应于上述像素排列结构的显示基板和显示装置。
本公开的实施例提供的像素排列结构,通过使第二子像素的几何中心向第三子像素的几何中心靠近,从而使灰度中心分布更加均匀,改善视觉颗粒感和不平滑的感觉,进而提高该像素排列结构的显示质量。
下面结合附图对本公开实施例提供的像素排列结构、显示基板、显示装置进行说明。需要说明的是,不同的附图中相同的附图标记用于指代已描述的相同或相似的结构。
本公开至少一个实施例提供一种像素排列结构。图2为本公开一实施例提供的一种像素排列结构的示意图。该像素排列结构200包括阵列排布的多个第一子像素110和多个子像素组140。如图2所示,多个第一子像素110和多个子像素组140沿第一方向交替排列以形成像素行,沿与第一方向交叉的第二方向交替排列以形成像素列;每个子像素组140包括沿第一方向依次排列的第二子像素120、第三子像素130和第二子像素120;其中,同一像素行中的第一子像素110、第二子像素120和第三子像素130的几何中心位于沿第一方向的同一条直线101上,同一像素列中的第一子像素110和第三子像素130的几何中心位于沿第二方向的同一条直线102上;在同一像素行中,第二子像素120和相邻的第三子像素130的几何中心的距离L2(即图2中线段C2-C3的长度)与第一子像素110和相邻的子像素组140中的第三子像素130的几何中心的距离L1(即图2中线段C1-C3的长度)的比例大于或等于1/4且小于1/2。例如,L2与L1的比例可以为0.3、0.35、0.4、0.45等。
在图1所示像素排列结构100中,以红色子像素为第一子像素、绿色子像素为第二子像素、蓝色子像素为第三子像素,则像素排列结构100与像素排列结构200类似,不同之处在于:在像素排列结构100中,L2与L1的比例等于1/2;而在像素排列结构200中,L2与L1的比例小于1/2,且大于或等于1/4。因此,与像素排列结构100相比,像素排列结构200使第二子像素的几何中心向第三子像素的几何中心靠近,从而在第一方向上,原本取较小值的相邻的灰度中心的间距将增大,而原本取较大值的相 邻的灰度中心的间距将减小,从而使灰度中心分布更加均匀,改善视觉颗粒感和不平滑的感觉,进而提高该像素排列结构的显示质量。
例如,图2示出了L2与L1的比例等于1/4的情形,此时,在第一方向上,相邻的灰度中心的间距只有一个取值,即灰度中心在第一方向上均匀分布。若L2与L1的比例小于1/4,则灰度中心在第一方向上的分布又开始变得不均匀,同时,还会导致第二子像素120和第三子像素130在第一方向上的尺寸减小,从而第二子像素120和第三子像素130的面积减小,进而例如在AMOLED显示装置中第二子像素120和第三子像素130的寿命缩短,不利于延长AMOLED显示装置的使用寿命。
例如,在一些示例中,如图2所示,与每个子像素组140相邻的四个第一子像素110的几何中心C1为一个正方形或类正方形150的四个顶点。由此,可以使灰度中心在第二方向上的间距与在第一方向上的间距相等或接近,从而可以使灰度中心在平面内的分布更加均匀。需要说明的是,这里所述的正方形为严格的正方形,类正方形指任一角为直角上下浮动5度的菱形。
例如,在一些示例中,每个第三子像素130沿第一方向的尺寸可以为每个子像素组140沿第一方向的尺寸的1/3-1/2。例如,图2示出了每个第三子像素130沿第一方向的尺寸为每个子像素组140沿第一方向的尺寸的1/3的情形。由此,可以使在子像素组140中的第三子像素130能够具有较大的面积,从而例如在AMOLED显示装置中可以使第三子像素130的发光区域具有较大的面积,有利于延长第三子像素130(例如第三子像素130为蓝色子像素)的寿命,进而延长AMOLED显示装置的使用寿命。
例如,在一些示例中,如图2所示,在像素排列结构200中,每个第二子像素120沿第二方向的尺寸与每个第三子像素130沿第二方向的尺寸相同。例如,在一些示例中,每个第二子像素120沿第二方向的尺寸和每个第三子像素130沿第二方向的尺寸均可以与每个子像素组140沿第二方向的尺寸相同。由此,可以使在子像素组140中的第二子像素120和第三子像素130能够具有较大的面积,有利于延长例如在AMOLED显示装置中的第二子像素120和第三子像素130的寿命。
例如,在一些示例中,每个第一子像素110沿第二方向的尺寸为每个子像素组140沿第二方向的尺寸的1/2-1。例如,图2示出了第一子像素 110沿第二方向的尺寸为子像素组140沿第二方向的尺寸的1倍,即第一子像素110沿第二方向的尺寸与子像素组140沿第二方向的尺寸相同的情形。图3为本公开一实施例提供的另一种像素排列结构的示意图。与图2相比,图3示出了第一子像素110沿第二方向的尺寸与子像素组140沿第二方向的尺寸的比例在1/2到1之间的情形。当子像素组140沿第二方向的尺寸大于第一子像素110沿第二方向的尺寸时,可以进一步扩大第二子像素120和第三子像素130的面积,提高第二子像素和第三子像素的寿命。需要说明的是,当第一子像素110沿第二方向的尺寸小于子像素组140沿第二方向的尺寸时,如图3所示,像素排列结构300中会形成一个区域160(图3中虚线框部分)。该区域160中包括第二子像素120的一部分和第三子像素130的一部分以及空区域165,如果该区域160沿第二方向的尺寸太大,可能影响显示效果。因此,为了避免该问题,可以限制第一子像素110沿第二方向的尺寸与子像素组140沿第二方向的尺寸之间的比例关系。例如,在本实施例中,该比例关系为1/2-1。
需要说明的是,图2所示的像素排列结构200和图3所示的像素排列结构300,示出的均是L2与L1的比例等于1/4(灰度中心接近于严格均匀分布)的情形,但是本公开的实施例不限于此。由于人眼分别率有限,灰度中心的分布略微偏离如图2和图3所示的严格均匀分布,并不会为人眼所察觉,只要其比图1所示的灰度中心的分布更加均匀即可。
图4为本公开一实施例提供的再一种像素排列结构的示意图。如图4所示,在像素排列结构400中,L2与L1的比例大于1/4且小于1/2,其灰度中心分布的均匀性不如图2所示的像素排列结构200,但优于图1所示的像素排列结构100,因此仍然提高了灰度中心分布的均匀性,可以改善视觉颗粒感和不平滑的感觉,进而提高显示质量。
例如,在一些示例中,如图4所示,在像素排列结构400中,每个第一子像素110的面积与每个子像素组140的面积相同,每个第二子像素120的面积和每个第三子像素130的面积相同。第一子像素110的面积与子像素组140的面积相同,与图2相比,相当于减小了第一子像素110的面积,而增大了子像素组140的面积,从而可以增大子像素组140中的第三子像素130的面积,有利于延长例如在AMOLED显示装置中的第三子像素130的寿命。第二子像素120的面积和第三子像素130的面积相同,可以平衡 延长第三子像素130的寿命与使灰度中心C4分布更加均匀的目标。因为在像素排列结构400中,如果增大第三子像素130的面积,将有利于延长第三子像素130的寿命,但是会使第二子像素120的面积减小,使第二子像素120的几何中心C2远离第三子像素130的几何中心C3,从而导致灰度中心C4更加靠近第一子像素110的几何中心C1,进而降低灰度中心分布的均匀性。
图5为本公开一实施例提供的又一种像素排列结构的示意图。如图5所示,在像素排列结构500中,L2与L1的比例大于1/4且小于1/2,其灰度中心分布的均匀性不如图3所示的像素排列结构300,但优于图1所示的像素排列结构100,因此仍然提高了灰度中心分布的均匀性,可以改善视觉颗粒感和不平滑的感觉,进而提高显示质量。
例如,在一些示例中,如图5所示,在像素排列结构500中,每个第一子像素110的面积为每个子像素组140的面积的1/2,每个第三子像素130的面积和每个第一子像素110的面积相同。与图4所示的像素排列结构400相比,图5所示的像素排列结构500通过增大子像素组140沿第二方向的尺寸来使第二子像素120和第三子像素130能够具有更大的面积,有利于延长第三子像素130的寿命。与图3所示的像素排列结构300相比,图5所示的像素排列结构500中形成的区域160(图5中虚线框部分)仅包括第二子像素120的一部分和第三子像素130的一部分,而不再包括空区域165,可以提高像素排列结构整体的开口率。
例如,在一些示例中,如图5所示,在像素排列结构500中,每个第二子像素120的面积为每个第三子像素130的面积的1/2。由此,可以明确使在子像素组140中的第二子像素120也具有较大的面积,有利于延长例如在AMOLED显示装置中的第二子像素120寿命。
例如,在一些示例中,如图2-图5所示,第一方向和第二方向彼此垂直。当然,本公开的实施例包括但不限于此。
例如,在一些示例中,第一子像素110包括红色子像素,第二子像素120包括绿色子像素,第三子像素130包括蓝色子像素。当然,本公开的实施例提供的像素排列结构可以采用的显示模式不限于上述红绿蓝(RGB)模式,其他显示模式可以参考其他通常采用的方案,本公开对此不再赘述。
需要说明的是,在本公开的实施例中,各子像素的几何中心可以为各子像素平面几何形状的重心;各子像素的平面几何形状可以为规则图形(例如图2-图5所示的矩形等),也可以为不规则图形,本公开对此不作限制,只要各子像素的几何中心的分布符合本公开的实施例的要求即可。需要说明的是,附图中的各子像素可以理解为仅包括发光区域,还可以理解为既包括发光区域也包括不发光区域,由该不发光区域将相邻的子像素的发光区域分隔开,例如,在一些示例中,该不发光区域包括黑矩阵。因此,附图中的各子像素可以不代表其发光区域的面积,各子像素的发光区域的面积可以小于各子像素的面积。例如,在一些示例中,各子像素的发光区域可由电极、发光层、像素定义层至少之一的形状来确定。例如,对于OLED子像素结构,各子像素的发光区域可以是像素电极与发光层的接触区域。这里的发光层可以包括电致发光层和诸如电子注入层、电子传输层、空穴注入层和空穴传输层等其他有机功能层。需要说明的是,各子像素的发光区域的几何中心可以与各子像素的几何中心重合。
需要说明的是,本公开的实施例提供的像素排列结构用于显示面板时,可以采用子像素渲染算法进行驱动。例如,相邻的一个第一子像素和第二子像素形成一个虚拟像素,相邻的一个第二子像素和一个第三子像素形成一个虚拟像素,并通过像素借用的方式进行显示。
本公开至少一个实施例还提供一种显示基板。图6为本公开一实施例提供的一种显示基板的结构示意图。如图6所示,该显示基板包括衬底基板601以及设置在衬底基板601上的像素排列结构600。该像素排列结构600可以采用上述任一示例提供的像素排列结构。由于该显示基板采用了上述任一示例提供的像素排列结构,因此该显示基板具有其所包括的像素排列结构的有益效果,例如,该显示基板可以使灰度中心分布更加均匀,改善视觉颗粒感和不平滑的感觉,从而提高显示质量。
图7为本公开一实施例提供的另一种显示基板的结构示意图。如图7所示,该显示基板包括衬底基板701以及设置在衬底基板701上的像素排列结构。需要说明的是,图5中仅示出了像素排列结构的局部。如图5所示,在该像素排列结构中,第一子像素110包括第一像素电极111,第二子像素120包括第二像素电极121,第三颜色子像素130包括第三像素电极131。该显示基板可为阵列基板,例如,该显示基板可以为AMOLED 显示基板或者液晶显示用阵列基板。
图8为本公开一实施例提供的又一种显示基板的结构示意图。如图8所示,该显示基板包括衬底基板801以及设置在衬底基板801上的像素排列结构。在该像素排列结构中,第一子像素110不仅包括第一像素电极111还包括设置在第一像素电极111上的第一颜色发光层112,第二子像素120不仅包括第二像素电极121还包括设置在第二像素电极121上的第二颜色发光层122,第三颜色子像素130不仅包括第三像素电极131还包括设置在第三像素电极131上的第三颜色发光层132。由此,该显示基板可以为阵列基板,例如,该显示基板可以为AMOLED显示基板。
例如,在一些示例中,第一像素电极111被配置为驱动第一颜色发光层112发光。
例如,第一像素电极111的形状可以与第一子像素110的形状相同。当然,本公开实施例包括但不限于此,第一像素电极111的形状可以与第一子像素110的形状不同,第一子像素110的发光区域的形状可以通过像素限定层限定。
需要说明的是,第一子像素的发光区域的形状可以与第一子像素的形状相同或者不同,第一子像素的发光区域的面积可以小于第一子像素的面积。另外,第一颜色发光层的具体形状可根据制备工艺进行设置,本公开的实施例对此不作限制。
例如,在一些示例中,第二像素电极121被配置为驱动第二颜色发光层122发光。
例如,第二像素电极121的形状可以与第二子像素120的形状相同。当然,本公开实施例包括但不限于此,第二像素电极121的形状可以与第二子像素120的形状不同,第二子像素120的发光区域的形状可以通过像素限定层限定。
需要说明的是,第二子像素的发光区域的形状可以与第二子像素的形状相同或者不同,第二子像素的发光区域的面积可以小于第二子像素的面积。另外,第二颜色发光层的具体形状可根据制备工艺进行设置,本公开的实施例对此不作限制。
例如,在一些示例中,第三像素电极131被配置为驱动第三颜色发光层132发光。
例如,第三像素电极131的形状可以与第三子像素130的形状相同。当然,本公开实施例包括但不限于此,第三像素电极131的形状可以与第三子像素130的形状不同,第三子像素130的发光区域的形状可以通过像素限定层限定。
需要说明的是,第三子像素的发光区域的形状可以与第三子像素的形状相同或者不同,第三子像素的发光区域的面积可以小于第三子像素的面积。另外,第三颜色发光层的具体形状可根据制备工艺进行设置,本公开的实施例对此不作限制。
图9为本公开一实施例提供的一种显示面板的结构示意图。如图9所示,该显示面板除了包括如图7所示的其上设置了像素排列结构的衬底基板701之外,还包括其上设置了像素排列结构的彩膜基板901,且彩膜基板901上的像素排列结构与衬底基板701上的像素排列结构的布置方式相同。需要说明的是,图9中仅示出了像素排列结构的局部。
例如,在一些实施例中,本公开实施例提供的显示基板包括彩膜基板,例如该彩膜基板为图9中的彩膜基板901。例如,如图9所示,彩膜基板901上的第一子像素110包括第一滤色层113,彩膜基板901上的第二子像素120包括第二滤色层123,彩膜基板901上的第三子像素130包括第三滤色层133。
需要说明的是,图9所示的显示面板不仅可以用于液晶显示面板,还可用于采用白光OLED结合彩膜基板模式的显示面板。例如,在显示面板为液晶显示面板的情况下,在衬底基板701和彩膜基板901之间还可以包括液晶层。
例如,在一些示例中,如图9所示,该显示面板中的彩膜基板901还包括设置在第一滤色层113、第二滤色层123和第三滤色层133之间的黑矩阵170。
需要说明的是,在本公开的实施例中,像素排列结构中的第一子像素、第二子像素和第三子像素可以包括实现像素功能的像素结构的至少一部分,对子像素的具体类型和结构没有特别限制。例如,各子像素可以为OLED发光元件或液晶显示像素,其可以包括像素电极、发光层和滤色层中的至少一种。例如,本公开实施例中包括像素排列结构的显示基板可以为OLED显示基板、液晶显示用阵列基板以及彩膜基板中的任一种。
需要说明的是,为表示清楚,本公开附图所示实施例中并没有给出显示面板的全部结构。为实现显示面板的必要功能,本领域技术人员可以根据实际需要进行设置其他未示出的结构,本公开对此不作限制。
本公开至少一个实施例还提供一种显示装置。该显示装置包括上述实施例提供的任意一种显示基板。因此,该显示装置可以使灰度中心分布更加均匀,从而改善视觉颗粒感和不平滑的感觉,进而提高显示质量。
例如,在一些示例中,该显示装置可以为智能手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置还可以包括其他常规部件,本公开的实施例对此不作限制。
对于本公开,有以下几点需要说明:
(1)本公开实施例附图中,只涉及到与本公开实施例涉及到的结构,其他结构可参考通常设计。
(2)为了清晰起见,在用于描述本公开的实施例的附图中,层或区域的厚度被放大或缩小,即这些附图并非按照实际的比例绘制。
(3)在不冲突的情况下,本公开同一实施例及不同实施例中的特征可以相互组合。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。

Claims (16)

  1. 一种像素排列结构,包括:阵列排布的多个第一子像素和多个子像素组,其中,
    所述多个第一子像素和所述多个子像素组沿第一方向交替排列以形成像素行,沿与所述第一方向交叉的第二方向交替排列以形成像素列;
    每个所述子像素组包括沿所述第一方向依次排列的第二子像素、第三子像素和第二子像素;
    其中,同一像素行中的所述第一子像素、所述第二子像素和所述第三子像素的几何中心位于沿所述第一方向的同一条直线上;
    同一像素列中的所述第一子像素和所述第三子像素的几何中心位于沿所述第二方向的同一条直线上;
    在所述同一像素行中,所述第二子像素和相邻的所述第三子像素的几何中心的距离与所述第一子像素和相邻的所述子像素组中的所述第三子像素的几何中心的距离的比例大于或等于1/4且小于1/2。
  2. 根据权利要求1所述的像素排列结构,其中,与每个所述子像素组相邻的四个所述第一子像素的几何中心为一个正方形或类正方形的四个顶点。
  3. 根据权利要求2所述的像素排列结构,其中,每个所述第三子像素沿所述第一方向的尺寸为每个所述子像素组沿所述第一方向的尺寸的1/3-1/2。
  4. 根据权利要求3所述的像素排列结构,其中,每个所述第二子像素沿所述第二方向的尺寸与每个所述第三子像素沿所述第二方向的尺寸相同。
  5. 根据权利要求3或4所述的像素排列结构,其中,每个所述第一子像素沿所述第二方向的尺寸为每个所述子像素组沿所述第二方向的尺寸的1/2-1。
  6. 根据权利要求5所述的像素排列结构,其中,每个所述第一子像素的面积与每个所述子像素组的面积相同,每个所述第二子像素的面积和每个所述第三子像素的面积相同。
  7. 根据权利要求5所述的像素排列结构,其中,每个所述第一子像 素的面积为每个所述子像素组的面积的1/2,每个所述第三子像素的面积和每个所述第一子像素的面积相同。
  8. 根据权利要求7所述的像素排列结构,其中,每个所述第二子像素的面积为每个所述第三子像素的面积的1/2。
  9. 根据权利要求1-8任一项所述的像素排列结构,其中,所述第一方向和所述第二方向彼此垂直。
  10. 根据权利要求9中任一项所述的像素排列结构,其中,所述第一子像素、所述第二子像素和所述第三子像素的形状均为矩形。
  11. 根据权利要求1-10中任一项所述的像素排列结构,其中,所述第一子像素包括红色子像素,所述第二子像素包括绿色子像素,所述第三子像素包括蓝色子像素。
  12. 一种显示基板,包括:
    衬底基板;以及
    设置在所述衬底基板上的像素排列结构;
    其中,所述像素排列结构包括根据权利要求1-11中任一项所述的像素排列结构。
  13. 根据权利要求12所述的显示基板,其中,所述第一子像素包括第一像素电极,所述第二子像素包括第二像素电极,所述第三子像素包括第三像素电极。
  14. 根据权利要求13所述的显示基板,其中,所述第一子像素还包括设置在所述第一像素电极上的第一颜色发光层,所述第二子像素还包括设置在所述第二像素电极上的第二颜色发光层,所述第三子像素还包括设置在所述第三像素电极上的第三颜色发光层。
  15. 根据权利要求12所述的显示基板,其中,所述显示基板为彩膜基板,所述第一子像素包括第一滤色层,所述第二子像素包括第二滤色层,所述第三子像素包括第三滤色层。
  16. 一种显示装置,包括根据权利要求12-15任一项所述的显示基板。
PCT/CN2019/071351 2019-01-11 2019-01-11 像素排列结构、显示基板及显示装置 Ceased WO2020143026A1 (zh)

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