WO2020143213A1 - Structure de pixel, substrat d'affichage et dispositif d'affichage - Google Patents

Structure de pixel, substrat d'affichage et dispositif d'affichage Download PDF

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Publication number
WO2020143213A1
WO2020143213A1 PCT/CN2019/097400 CN2019097400W WO2020143213A1 WO 2020143213 A1 WO2020143213 A1 WO 2020143213A1 CN 2019097400 W CN2019097400 W CN 2019097400W WO 2020143213 A1 WO2020143213 A1 WO 2020143213A1
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WIPO (PCT)
Prior art keywords
pixel
sub
repeating unit
pixel structure
pixels
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PCT/CN2019/097400
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English (en)
Chinese (zh)
Inventor
刘明星
王徐亮
张玄
甘帅燕
高峰
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昆山国显光电有限公司
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Publication of WO2020143213A1 publication Critical patent/WO2020143213A1/fr

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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
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels

Definitions

  • the present application relates to the field of display technology, for example, to a pixel structure, a display substrate, and a display device.
  • Organic light-emitting diode uses its self-luminous light-emitting mechanism, does not require a backlight, when the organic light-emitting diode is applied to a display panel and a display device, the overall thickness of the display panel and the display device is thin, there are It is beneficial to realize the thin and light design of the display panel and the display device. At the same time, organic light-emitting diodes have the advantages of high display brightness, wide viewing angle and fast response speed. In the preparation process of OLED, it is usually necessary to use a high-precision mask for mask evaporation to evaporate the luminescent material to the effective display area.
  • Embodiments of the present application provide a pixel structure, a display substrate, and a display device, and propose a new pixel arrangement method.
  • the present application provides a pixel structure including: a plurality of repeating units arranged in an array;
  • the repeating unit includes a first subpixel, a second subpixel, and two third subpixels; the second subpixel and the third subpixel in the same repeating unit are arranged along the second direction, Constituting a unit group; the unit group and the first sub-pixel in the same repeating unit are arranged along the first direction;
  • the two third sub-pixels are adjacent, and the second sub-image is adjacent to one third sub-pixel;
  • the second sub-pixel is between two of the third sub-pixels.
  • the area of a single third sub-pixel is between the area of the first sub-pixel and the area of the second sub-pixel; and the first sub-pixel The area of the pixel is larger than the area of the second sub-pixel.
  • the size of the first subpixel in the first direction is smaller than the size of the second subpixel in the first direction; or, the first subpixel is in the first direction
  • the size in one direction is smaller than the size of the third subpixel in the first direction; or, the size of the first subpixel in the first direction is smaller than the size of the second subpixel in the first direction
  • the size in one direction, while the size of the first sub-pixel in the first direction is smaller than the size of the third sub-pixel in the first direction.
  • the size of the second sub-pixel in the first direction is equal to the size of the third sub-pixel in the first direction.
  • the unit group and the projection of the first sub-pixel along the first direction at least partially overlap.
  • the size of the one first sub-pixel in the second direction is smaller than that of the one second sub-pixel and the two third sub-pixels in the first The sum of dimensions in both directions.
  • connection direction of the geometric center of the first sub-pixel and the geometric center of the unit group is parallel to the first direction.
  • connection direction of the geometric center of the second sub-pixel and the geometric center of the third sub-pixel is parallel to the second direction.
  • the first subpixel is a blue subpixel
  • the second subpixel is a red subpixel
  • the third subpixel is a green subpixel
  • a plurality of the repeating units are arranged to form a pixel structure
  • the repeating units are all aligned and repeatedly arranged.
  • a plurality of the repeating units are arranged to form a pixel structure
  • a plurality of the repeating units in the i-th row and a plurality of the repeating units in the i+1-th row are misaligned, and a plurality of the repeating in the i-th row
  • the units are arranged in the same manner as the multiple repeating units in the i+2th row, where i is an integer equal to or greater than 1.
  • the repeating units in the i-th row are offset from the repeating units in the i+1-th row by a predetermined distance.
  • the preset distance is half the width of the repeating unit
  • the width of the repeating unit is the length of the repeating unit in the first direction.
  • one third sub-pixel, the second sub-pixel and the first sub-pixel located in the same repeating unit constitute one pixel unit.
  • one third sub-pixel, the second sub-pixel and the first sub-pixel located in the repeating unit adjacent in the second direction constitute one pixel unit.
  • the present application also provides a display substrate including the pixel structure provided by any embodiment of the present application.
  • the present application also provides a display device including the display substrate provided by any embodiment of the present application.
  • FIG. 1 is a schematic diagram of a pixel structure provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of another pixel structure provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of yet another pixel structure provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of yet another pixel structure provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of distribution of first sub-pixels in a pixel structure provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of distribution of second sub-pixels in a pixel structure provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the distribution of third sub-pixels in a pixel structure provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a repeating unit provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a display device provided by an embodiment of the present application.
  • the pixel structure 10 includes: a plurality of repeating units 11 arranged in an array; the repeating unit 11 includes a first sub-pixel 111, a second sub-pixel 112 and two third sub-pixels 113.
  • the second sub-pixel 112 and the third sub-pixel 113 in the same repeating unit 11 are arranged along the second direction Y to form a unit group 11G; the unit group 11G and the first sub-pixel 111 in the same repeating unit 11 are arranged along the first direction X ; Where the first direction X crosses the second direction Y.
  • the first direction X is perpendicular to the second direction Y, for example, the first direction X is the row direction, and the second direction Y is the column direction.
  • the embodiments of the present application provide a new pixel arrangement method.
  • Each repeating unit 11 includes two third sub-pixels 113, and an algorithm (driving method) can make one of the third sub-pixels 113 and the first and second sub-pixels 111 and 112 located in the same repeating unit 11 constitute One pixel unit; another third sub-pixel 113 in the repeating unit 11 and the first sub-pixel 111 and the second sub-pixel 112 in the repeating unit 11 in the adjacent row constitute another pixel unit, that is, the repeating unit
  • the first sub-pixel 111 and the second sub-pixel 112 in 11 may constitute one pixel unit with one third sub-pixel 113 in another repeating unit 11.
  • two pixel units can be formed corresponding to one repeating unit 11, and by sharing the first sub-pixel 111 and the second sub-pixel 112, a higher density of pixel units can be achieved, so that when the pixel structure is applied for display Achieve high PPI.
  • the arrangement of one second sub-pixel 112 and two third sub-pixels 113 may include: second sub-pixel 112 , The third sub-pixel 113, the third sub-pixel 113; or, the third sub-pixel 113, the second sub-pixel 112, the third sub-pixel 113.
  • the arrangement order of the sub-pixels in the unit group 11G may further include: along the second direction Y, the third sub-pixel 113, the third Sub-pixel 113, second sub-pixel 112.
  • a plurality of repeating units 11 are arranged to form a pixel structure 10.
  • the repeating units 11 are aligned and repeated in the first direction X and the second direction Y .
  • the first direction X is the row direction of the array
  • the second direction Y is the column direction of the array; the repeating units 11 of different columns in the same row are aligned; the repeating units 11 of different rows in the same column are aligned.
  • FIG. 2 only exemplarily show the repeating unit 11 with 3 rows and 4 columns, but not a limitation to the pixel structure 10 provided by the embodiment of the present application.
  • the number of repeating units 11 and the arrangement of rows and columns may be set according to the actual needs of the pixel structure 10, which is not limited in the embodiments of the present application.
  • the plurality of repeating units 11 in the i-th row and the plurality of repeating units 11 in the i+1-th row are misaligned, the i-th row
  • the plurality of repeating units 11 are arranged in the same manner as the plurality of repeating units 11 in the i+2 row, where i is an integer equal to or greater than 1.
  • the first direction X is the row direction of the array
  • the second direction Y is the column direction of the array
  • the repeating units 11 of the odd rows and the repeating units 11 of the even rows are misaligned, and the repeating of the odd rows
  • the units 11 are aligned in the column direction, and the repeating units 11 in the even rows are aligned in the column direction.
  • at least part of the column pixel structure can include the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 at the same time, which is beneficial to improve the uniformity of color development Sex.
  • the repeating units 11 in the i-th row are offset from the repeating units in the i+1-th row by a predetermined distance W1.
  • the preset distance W1 is the width W2 of the half repeating unit 11; wherein, the width of the repeating unit 11 is the length of the repeating unit 11 in the first direction X.
  • the first direction X is a row direction
  • the second direction Y is a column direction.
  • the repeating units 11 of the odd rows and the repeating units 11 of the even rows are offset by a preset distance W1
  • the preset distance W1 is the width W2 of the half repeating unit 11; wherein, the repeating unit 11
  • the width of is the length of the repeating unit 11 in the row direction.
  • the repeating unit 11 in the second row includes two third sub-pixels 113, combined with an algorithm (ie, a driving method), one of the third sub-pixels 113 and the first and second sub-pixels 111 and 111 located in the same repeating unit 11
  • the pixel 112 constitutes a pixel unit; the second sub-pixel 112 and the first sub-pixel 111 in the repeating unit 11 and the third sub-pixel 113 and the first sub-pixel 111 in the repeating unit 11 of the previous row (line 1) Another pixel unit; another third sub-pixel 113 in the repeating unit 11 and the first sub-pixel 111 in the same repeating unit 11 and the first and second sub-pixels 111 and second in the next row (row 3)
  • the pixel 112 constitutes another pixel unit; the second sub-pixel 112 and the first sub-pixel 111 in the repeating unit 11 of the next row (row 3) also include a third sub-unit with itself (the repeating unit in row 3)
  • the pixel 113 constitutes
  • the sub-pixels in each column may include a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113, so that when the pixel structure is applied for image display, the color development of the image is more uniform.
  • the preset distance W1 is half the width W2 of the repeating unit 11
  • the geometric centers of the first sub-pixels 111 arranged along the second direction Y and the geometric centers of the cell group 11G are aligned in the second direction Y, that is, the connecting direction of the two geometric centers is parallel to the second direction Y.
  • the second sub-pixel 112 and the third sub-pixel 113 in the same unit group 11G can be placed in the second direction Y is aligned, that is, the connecting direction of the two geometric centers is parallel to the second direction Y.
  • the second sub-pixel 112 and the third sub-pixel 113 of the odd-line repeating unit 11 are aligned with the first sub-pixel 111 of the even-line repeating unit 11.
  • Such setting can ensure that the color structure uniformity is high when the pixel structure 10 is applied to a display screen.
  • the width-to-length ratio of the repeating unit 11 is 1:2, and this arrangement helps to arrange the repeating units more closely.
  • the above “align in the first direction X" and “align in the second direction Y” are not mathematically “aligned", it can be understood that the distance between their positions is within a certain preset threshold range, of course, Those skilled in the art may understand that the preset threshold range may be set according to the actual needs of the pixel structure, which is not limited in the embodiments of the present application.
  • the connection direction of the two geometric centers is parallel to the first direction X” and “the connection direction of the two geometric centers is parallel to the second direction Y” is not “parallel” in the mathematical sense, and can be understood as two directions
  • the included angle is within a certain preset angle threshold range.
  • the range of the preset angle threshold can be set according to the actual needs of the pixel structure, which is not limited in the embodiments of the present application.
  • the arrangement of one second sub-pixel 112 and two third sub-pixels 113 includes : Second sub-pixel 112, third sub-pixel 113, third sub-pixel 113.
  • the mask opening can be shared, thereby reducing the design difficulty of the mask.
  • the arrangement of the second sub-pixel 112 and the third sub-pixel 113 can also adopt other methods.
  • one second sub-pixel The arrangement of 112 and the two third sub-pixels 113 can also be: a third sub-pixel 113, a second sub-pixel 112, and a third sub-pixel 113.
  • a sub-pixel array formed by each of the three types of sub-pixels can be obtained.
  • the first subpixels 111 in the multiple repeating units 11 constitute a first subpixel array, and each first subpixel in the first subpixel array 111 are arranged at equal intervals in the first direction X, and the pitch of each first sub-pixel 111 in the first direction X is shown at a first pitch X11 in FIG. 5.
  • the first sub-pixels 111 in the first sub-pixel array are arranged at equal intervals along the second direction Y, and the pitch of the first sub-pixels 111 along the second direction Y is shown in FIG. 5 with the second interval Y11.
  • the second sub-pixels 112 in the multiple repeating units 11 constitute a second sub-pixel array, and the second sub-pixels 112 in the second sub-pixel array are arranged at equal intervals along the first direction X, which is shown at the third interval X12 in FIG. 6
  • the pitch of each second sub-pixel 112 along the first direction X is shown.
  • the second sub-pixels 112 in the second sub-pixel array are arranged at equal intervals in the second direction Y, and the pitch of the second sub-pixels 112 in the second direction Y is shown in FIG. 6 at a fourth interval Y12.
  • the third sub-pixels 113 in the plurality of repeating units 11 constitute a third sub-pixel array, and each third sub-pixel 113 in the third sub-pixel array is arranged at equal intervals along the first direction X, which is shown at the fifth interval X13 in FIG. 7
  • the pitch of each third sub-pixel 113 along the first direction X is shown.
  • the third sub-pixels 113 in the third sub-pixel array are arranged at equal intervals along the second direction Y, and the pitch of the third sub-pixels 113 along the second direction Y is shown in FIG. 7 with a sixth interval Y13.
  • the pixel units can be arranged at equal intervals in the row direction and the column direction, which is beneficial to realize that the display panel and the display device have a better image display effect.
  • FIG. 6 also shows four additional directions by taking the arrangement of the second sub-pixels 112 as an example, where the second sub-pixels 112 are arranged at equal intervals along the first additional direction XX; along the second additional direction XXX, the second The sub-pixels 112 are arranged at equal intervals; in the third additional direction YY, the second sub-pixels 112 are arranged at equal intervals; in the fourth additional direction YYY, the second sub-pixels 112 are arranged at equal intervals.
  • the first additional direction XX may be the direction in which the first direction X rotates counterclockwise by 75°
  • the second additional direction XXX may be the direction in which the first direction X rotates counterclockwise by 45°
  • the third additional direction YY may be the first The direction in which the second direction Y rotates 15° counterclockwise
  • the fourth additional direction YYY may be the direction in which the second direction Y rotates 45° counterclockwise.
  • the first sub-pixel 111 is a blue sub-pixel
  • the second sub-pixel 112 is a red sub-pixel
  • the third sub-pixel 113 is a green sub-pixel.
  • the colors of the sub-pixels may also be other colors known to those skilled in the art. There is no restriction on this.
  • the area of a single third sub-pixel 113 is between the area of the first sub-pixel 111 and the area of the second sub-pixel 112, and the area of the first sub-pixel 111 is larger than the The area of the two sub-pixels 112.
  • the areas of the sub-pixels are sorted from large to small: blue sub-pixels, green sub-pixels, and red sub-pixels.
  • the required brightness of the blue sub-pixel can be achieved under a smaller driving current, thereby slowing down the performance degradation of the blue sub-pixel and extending its life, Furthermore, when the pixel structure 10 is applied to a display panel and a display device, the service life of the display panel and the display device can be increased.
  • the brightness of the green sub-pixel is high. By setting the area of the green sub-pixel between the area of the blue sub-pixel and the area of the red sub-pixel, the brightness of the display screen can be ensured.
  • the size X1 of the first sub-pixel 111 in the first direction X is smaller than the size X2 of the second sub-pixel 112 in the first direction X; or, the first sub-pixel 111 is in the first
  • the size X1 in the direction X is smaller than the size X3 of the third sub-pixel 113 in the first direction X; or, the size X1 of the first sub-pixel 111 in the first direction X is smaller than the second sub-pixel 112 in the first direction X
  • the size X1 of the first sub-pixel 111 in the first direction X is smaller than the size X3 of the third sub-pixel 113 in the first direction X.
  • This arrangement is advantageous for satisfying the relative size relationship between the areas of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113.
  • the unit group 11G and the first sub-pixel 111 are arranged side by side in the second direction Y, by setting the size of the first sub-pixel 111 in the first direction X to be smaller, in the second direction Y
  • the size of the above is large, and the space where the repeating unit 11 is located can be fully utilized.
  • the size X2 of the second sub-pixel 112 in the first direction is equal to the size X3 of the third sub-pixel 113 in the first direction X.
  • the unit group 11G and the first sub-pixel 111 at least partially overlap in the first direction X projection.
  • the unit group 11G and the first sub-pixel 111 can be vertically projected on a straight line parallel to the second direction Y, the unit group 11G At least partially overlaps with the projection of the first sub-pixel 111 on this straight line.
  • the position of the first sub-pixel 111 may also be set to translate upward in the second direction Y to ensure that the lower boundary of the first sub-pixel 111 does not exceed the upper boundary of the cell group 11G;
  • the position of the first sub-pixel 111 may also be set to translate downward in the second direction Y, so as to ensure that the upper boundary of the first sub-pixel 111 does not exceed the lower boundary of the cell group 11G.
  • the unit group 11G and the first sub-pixel 111 can also completely overlap in the first direction X, so that the actual area occupancy rate of the sub-pixel in the space where the sub-pixel is located is higher.
  • the screen display effect is better it is good.
  • the size Y1 of one first sub-pixel 111 in the second direction Y is smaller than the size of one second sub-pixel 112 and two third sub-pixels 113 in the second direction And Y2.
  • the relative size relationship between the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 can meet the normal display requirements.
  • the “normal display requirements” herein may include display white balance requirements, display brightness requirements, display chromaticity requirements, and other display indicators known to those skilled in the art.
  • the width in the direction Y includes the width between the second sub-pixel 112 and the third sub-pixel 113 and the width between two adjacent third sub-pixels 113.
  • An embodiment of the present application further provides a display substrate including the pixel structure provided by any embodiment of the present application.
  • the display substrate may be an active light emitting diode display substrate, such as an OLED display substrate, a quantum dot display substrate, etc., and may also be a display substrate used by other display technologies known to those skilled in the art, which is not limited in the embodiments of the present application.
  • the display substrate is a light-emitting diode display panel structure.
  • the light emitting diode display panel may include a display substrate 30, and the display substrate 30 may be an array substrate, including a base substrate 351, a first electrode layer 352, and a light emitting layer 353.
  • the light-emitting layer 353 can adopt the pixel structure described above. Therefore, by adopting the pixel structure and combining the algorithm, a high PPI display of the LED display panel can be realized when displaying the screen.
  • an embodiment of the present application further provides a display device.
  • the display device 40 includes the display substrate 30 provided by any embodiment of the present application. Therefore, the display device 40 also has the beneficial effects of the above-mentioned display substrate 30, so that the display device 40 also has the beneficial effects of the above-mentioned pixel structure 10, which can be understood with reference to the above, and will not be repeated here.
  • the display device 40 shown in FIG. 10 is a mobile phone, and the display device 40 may also be a tablet, a computer, or other display devices known to those skilled in the art, which are not limited in the embodiments of the present application.

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Abstract

Des modes de réalisation de la présente invention se rapportent à une structure de pixel, un substrat d'affichage et un dispositif d'affichage, la structure de pixel comprenant de multiples unités répétées agencées en un réseau ; une unité répétée comprenant un premier sous-pixel, un deuxième sous-pixel et deux troisièmes sous-pixels ; le deuxième et les troisièmes sous-pixels de la même unité répétée étant agencés dans une seconde direction de manière à former un groupe unitaire, le groupe unitaire et le premier sous-pixel de la même unité répétée étant agencés dans une première direction, et la première et la seconde direction se croisant.
PCT/CN2019/097400 2019-01-09 2019-07-24 Structure de pixel, substrat d'affichage et dispositif d'affichage WO2020143213A1 (fr)

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CN201910022342.6 2019-01-09

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CN110164925B (zh) * 2019-04-29 2022-02-22 昆山国显光电有限公司 像素排布结构、显示面板及电子设备
CN110491911A (zh) * 2019-07-31 2019-11-22 云谷（固安）科技有限公司 像素排列结构和显示面板
CN110444569A (zh) * 2019-08-02 2019-11-12 云谷（固安）科技有限公司 像素排列结构及显示面板
KR20230017359A (ko) * 2020-07-01 2023-02-03 쿤산 고-비젼녹스 옵토-일렉트로닉스 씨오., 엘티디. 픽셀 배열 구조, 디스플레이 패널 및 디스플레이 장치

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