WO2015143860A1 - 显示方法和显示面板 - Google Patents

显示方法和显示面板 Download PDF

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Publication number
WO2015143860A1
WO2015143860A1 PCT/CN2014/087880 CN2014087880W WO2015143860A1 WO 2015143860 A1 WO2015143860 A1 WO 2015143860A1 CN 2014087880 W CN2014087880 W CN 2014087880W WO 2015143860 A1 WO2015143860 A1 WO 2015143860A1
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WIPO (PCT)
Prior art keywords
sub
pixels
pixel
row
virtual
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PCT/CN2014/087880
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English (en)
French (fr)
Inventor
时凌云
刘蕊
谢晓波
何全华
杨凯
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京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Priority to US14/437,025 priority Critical patent/US9875682B2/en
Publication of WO2015143860A1 publication Critical patent/WO2015143860A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/34—Control 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 by control of light from an independent source
    • G09G3/36—Control 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 by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control 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
    • G09G3/22—Control 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
    • G09G3/30—Control 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
    • G09G3/32—Control 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 semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control 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 semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a display method and a display panel.
  • the conventional display panel includes a plurality of "pixels 1" arranged in a matrix, wherein each of the pixels 1 is composed of three sub-pixels 9 of red, green, and blue arranged in a row, and each sub-pixel 9
  • the light of a certain brightness (of course, the light of a specific color thereof) can be independently emitted, and by the light mixing effect, the three sub-pixels 9 together constitute an independently displayable "point" on the screen.
  • the resolution of display panels is getting higher and higher, which requires that the size of pixels (or sub-pixels) is continuously reduced.
  • the sub-pixel size cannot be reduced indefinitely, which becomes a bottleneck that limits the further improvement of resolution.
  • the virtual algorithm technology can be used to improve the "feeling" resolution of the user by "shared" the sub-pixels; that is, one sub-pixel can be used to display the content in the plurality of pixels, thereby The resolution on the visual effect is higher than the actual physical resolution.
  • the technical problem to be solved by the present invention includes providing a display method and a display panel which can realize high-resolution display and have good effects against the problem that the existing high-resolution display technology is not satisfactory.
  • the technical solution adopted to solve the technical problem of the present invention is a display method for a display panel, the display panel includes a plurality of rows of sub-pixels, and each row of sub-pixels is composed of three types.
  • the sub-pixels of the color are cyclically arranged, and the sub-pixels of each row have the same cycle sequence, and the adjacent sub-pixels in the column direction are different in color and differ in position in the row direction by 1/2 sub-pixels;
  • the display method includes:
  • each virtual pixel is corresponding to the sampling position, wherein in each row of sampling positions, the sampling positions corresponding to the virtual pixels are distributed in the following distribution segments, and the adjacent sampling corresponding to the virtual pixels in each of the distribution segments There is a sampling position between the positions, and there are three sampling positions between the adjacent distribution segments, and in any two adjacent sampling positions, the sampling positions corresponding to the virtual pixels are not in the same column; Each sampling position corresponds to a position between two sub-pixels in one row and a middle of one sub-pixel in another row;
  • the “row” and “column” described above are two mutually perpendicular directions in the virtual pixel (or sub-pixel) array, which are independent of the shape of the sub-pixel, the display panel placement manner, the lead arrangement form, and the like.
  • the display panel is a liquid crystal display panel or an organic light emitting diode display panel.
  • the sub-pixels of the three colors are a red sub-pixel, a blue sub-pixel, and a green sub-pixel.
  • each of the distribution segments has two sampling positions corresponding to the virtual pixels; in the other row, the two distribution segments at the two ends have one and three respectively.
  • the sampling positions corresponding to the virtual pixels, and the remaining distribution segments have two sampling positions corresponding to the virtual pixels.
  • the size of the first row and the last row of sub-pixels of the display panel in the column direction is 1/2 of the size of the standard sub-pixel in the column direction.
  • one of the sub-pixels at each end of each row of sub-pixels corresponds to one virtual pixel, and the size of the sub-pixel in the row direction is the size of the standard sub-pixel in the row direction. 1/2.
  • the step S3 comprises: displaying the display components of a sub-pixel by multiplying the original components of the respective colors of the corresponding virtual pixels by respective scaling factors.
  • the sum of the scale coefficients of the original components of the respective colors of the respective virtual pixels corresponding to one sub-pixel is one.
  • the ratio factor of the original component of the corresponding color of the virtual pixel of any of the standard sub-pixels is between 0.5 and 0.9.
  • the original component and the display component are both luminances
  • the present invention also provides a display panel comprising a plurality of rows of sub-pixels, each row of sub-pixels being cyclically arranged by sub-pixels of three colors, each row of sub-pixels having the same cycle sequence and adjacent in the column direction
  • the sub-pixels are different in color and differ in position in the row direction by 1/2 sub-pixel.
  • the content displayed by each sub-pixel (excluding a few sub-pixels of the edge, hereinafter referred to as a standard sub-pixel) is determined by two virtual pixels adjacent to the sub-pixel, that is, Each sub-pixel is "shared" by two virtual pixels, or each sub-pixel is used to represent the content of two virtual pixels at the same time, and combined with a specific display panel, the resolution of the visual effect can reach the actual resolution of two. Double, and the display effect is good; at the same time, the content displayed by each sub-pixel is directly calculated by a plurality of specific virtual pixels, without complicated operations such as “partition, layering, area ratio”, so the process is simple and the calculation amount is small .
  • the invention is particularly suitable for performing high resolution displays.
  • FIG. 1 is a schematic structural view of a conventional display panel
  • FIG. 2 is a schematic structural diagram of a display panel according to a display method of Embodiment 1 of the present invention
  • FIG. 3 is a corresponding position of a virtual pixel in the display method according to Embodiment 1 of the present invention.
  • reference numerals are: 1, pixel; 2, virtual pixel; 8, sampling position; 9, sub-pixel.
  • the embodiment provides a display method suitable for the display panel of the embodiment.
  • the display panel of the present embodiment includes a plurality of rows of sub-pixels 9, each of which is formed by cyclically arranging three sub-pixels 9 of three colors, and the order of the sub-pixels 9 in each row is the same.
  • the sub-pixels 9 of the three colors are the red sub-pixel 9, the blue sub-pixel 9, and the green sub-pixel 9, respectively, and are described as an example in the embodiment, that is, the display panel of the embodiment is in the RGB mode.
  • the display method of the present invention can also be employed.
  • each row three different color sub-pixels 9 constitute a cyclic unit (such as "red sub-pixel 9 - green sub-pixel 9 - blue sub-pixel 9 loop unit") a plurality of loop units constitute a row of sub-pixels 9; in different rows, the start sub-pixels 9 are different in color, but the sub-pixels 9 are arranged in the same order, for example, the first one in the first row of FIG.
  • red sub-pixel 9 is a red sub-pixel 9 And cyclically arranged in the order of "red sub-pixel 9 - green sub-pixel 9 - blue sub-pixel 9 - red sub-pixel 9", and the second line is first green sub-pixel 9, and press "green sub-pixel 9
  • the order of the blue sub-pixel 9 - the red sub-pixel 9 - the green sub-pixel 9" is arranged, and it can be seen that the order of the loops of the two rows of sub-pixels 9 is substantially the same.
  • the sub-pixels 9 adjacent in the column direction differ in position in the row direction by 1/2 of the sub-pixels 9, and the sub-pixels 9 of the same color are not in the same column.
  • the adjacent rows in the display panel of the present embodiment are not “aligned”, but are "staggered” to the position of the half sub-pixels 9, so that in the column direction, except for a few sub-pixels 9 of the edge, each The sub-pixels 9 are adjacent to the two sub-pixels 9 in one row in the column direction of one side; and since the same color sub-pixels 9 are not on the same column, the colors of the adjacent two sub-pixels 9 described above It is inevitably different from the sub-pixel 9. Thus, any three adjacent sub-pixels 9 of different colors will form a "character shape", and the arrangement structure makes the sub-pixels 9 of the three colors more uniform in distribution and better in display quality.
  • the display panel of the present embodiment is an OLED (Organic Light-Emitting Diode) panel, that is, the sub-pixel 9 includes a light-emitting unit (organic light-emitting diode), and the light-emitting unit of each sub-pixel 9 directly emits a desired color.
  • the brightness of the light; or the display panel may also be a liquid crystal display panel, that is, the sub-pixel 9 includes a filter unit, and the light passing through the filter unit of each sub-pixel 9 becomes the desired color and brightness.
  • the display method of this embodiment includes the following steps:
  • the image information from the graphics card or the like (that is, the content of the image to be displayed) is processed, and the original image is generated using the matrix, which is composed of a plurality of "points (ie, virtual pixels 2)" matrix, each The virtual pixels 2 include original components of three colors of red, green, and blue to indicate the "quantity" of the three colors of red, green, and blue at the "point".
  • the "component” in the above “original component” and the subsequent “display component” and the like refer to the “amount” of the color that should be displayed at the corresponding position, which can be expressed by “brightness”, and in this embodiment
  • each “component” can represent the “quantity” to be displayed, it can also take other metric parameters, such as “gray scale”, “saturation”, etc. as the unit of "component”.
  • each sampling position 8 Corresponding each virtual pixel 2 to the sampling position 8, wherein each line In the sampling position, the sampling positions 8 corresponding to the virtual pixels 2 are distributed in the following distribution segments, and a sampling position 8 is adjacent between the adjacent sampling positions 8 corresponding to the virtual pixels 2 in each of the distribution segments, adjacent to each other. There are 3 sampling positions 8 between the distribution segments, and in any adjacent two rows of sampling positions 8, the sampling positions 8 corresponding to the virtual pixels 2 are not on the same column; wherein each sampling position 8 corresponds to The position between the two sub-pixels 9 in one row and the middle of one of the sub-pixels 9 in the other row.
  • each sampling position 8 is disposed in the adjacent two rows of sub-pixels 9
  • any one of the sampling positions 8 is located between two adjacent sub-pixels 9 in one row, and also in the middle of one of the adjacent sub-pixels 9; or, for each of the three constituents
  • the sub-pixel 9 of the glyph has a center position of one sampling position 8.
  • each sampling position 8 also constitutes a “matrix” whose number of rows is one less than the number of rows of the sub-pixels 9, and the number of columns is smaller than the number of sub-pixels 9 in one row (the different rows of sub-pixels 9 are not aligned, so they are not called columns). The number is 2 times less than 2.
  • the sampling position 8 is not a real physical structure, but only for indicating the corresponding position, and all the sampling positions 8 constitute a position matrix for locating the respective virtual pixels.
  • each virtual pixel 2 in the virtual image is mapped into each of the above-described sampling positions 8 to determine the display component of each sub-pixel 9 in the subsequent process.
  • the sampling position 8 is no longer marked, and only the virtual pixel 2 is marked; wherein each virtual pixel 2 is represented by a triangle, and the number mn within the triangle represents the virtual pixel of the mth row and the nth column. 2, therefore, the sampling position 8 occupied by the triangle means that there is a corresponding virtual pixel 2, and the remaining sampling position 8 occupied by no triangle means that there is no virtual pixel 2.
  • the correspondence between the virtual pixel 2 and the sampling position 8 is as follows:
  • each row of virtual pixels 2 sequentially corresponds to each row of sampling positions 8, and in two adjacent row sampling positions 8, the sampling positions 8 of the corresponding virtual pixels 2 are respectively located at odd and even positions;
  • the sampling positions 8 of the corresponding virtual pixels 2 in the row are necessarily not adjacent in the column direction, and the vertices of the triangles representing the respective virtual pixels 2 are all oriented in the same direction.
  • the virtual pixel 2 must be in the "distribution segment" corresponding to each row of sampling positions 8, with three sampling positions 8 spaced between adjacent distribution segments, and one sampling position 8 corresponding to the virtual pixel 2 in the same distribution segment.
  • the sampling position distribution except for the distribution segments at both ends, corresponding to two virtual pixels 2 in each of the distribution segments, such that most of the distribution segments include 3 sampling positions 8 (two sampling positions 8 corresponding to the virtual pixels 2, and One of them does not correspond to the sampling position 8) of the virtual pixel 2; at the same time, except for the distribution segments at both ends, the remaining distribution segments in the adjacent rows are "staggered", that is, in any two adjacent rows. In position 8, the sampling positions 8 corresponding to the virtual pixels 2 are not in the same column.
  • each of the sampling positions 8 corresponding to the virtual pixel 2 is "a pair", and each "pair” corresponds to the sampling position of the virtual pixel 2.
  • 8 are each located at a gap between each "pair” of adjacent rows and the sampling position 8 corresponding to the virtual pixel 2.
  • each of the distribution segments there are two sampling positions 8 corresponding to the virtual pixels 2; and in another row, in the two distribution segments at the two ends There are one and three sampling positions 8 corresponding to the virtual pixels 2, respectively, and the remaining distribution segments each have two sampling positions 8 corresponding to the virtual pixels 2.
  • sampling positions 8 in each distribution segment of all rows correspond to the virtual pixel 2
  • the sampling position 8) does not correspond to the virtual pixel 2, and this causes distortion of the display of the image edge.
  • the odd-numbered lines have each of the sampling sections 8
  • three of the distribution segments correspond to the sampling position 8 of the virtual pixel 2 (of course, the sampling segment necessarily coincides with the sampling segment portion of the odd-line sampling position 8, that is, FIG. 3
  • the distribution segment of the sampling position 8 corresponding to the virtual pixels 21, 22, and 23 in the second row of the first row coincides with the distribution segment portion of the sampling position 8 corresponding to the virtual pixels 11 and 12 in the first row), and there is only one in the other.
  • the sampling position 8 of the virtual pixel 2 corresponds to the second row in FIG. 3 corresponding to the distribution segment of the sampling position 8 of the virtual pixel 210.
  • each virtual pixel 2 necessarily corresponds to three sub-pixels 9 around the corresponding sampling position 8 (ie, the virtual pixel 2 is represented in FIG. 3).
  • each standard sub-pixel 9 corresponds to two virtual pixels 2, and one of the two virtual pixels 2 corresponds to the middle of the sub-pixel 9. (ie, the virtual pixel 2 located directly below each sub-pixel 9 in FIG. 3), and the other corresponds to the edge portion of the sub-pixel 9 (ie, the virtual pixel 2 located at the upper left or upper right corner of each sub-pixel 9 in FIG. 3).
  • the size of the first row and the last row of sub-pixels 9 of the display panel in the column direction is 1/2 of the size of the standard sub-pixel in the column direction.
  • the standard sub-pixel refers to a sub-pixel that is not at the edge of the display panel; or, the standard sub-pixel is a sub-pixel other than the first row and the last row of the display panel and the sub-pixels at both ends of each row.
  • the area of the two rows of sub-pixels 9 should be half of the area of the remaining sub-pixels 9, so this can be
  • the "height (i.e., its dimension in the column direction)" of the two rows of sub-pixels 9 is set to be half the height of the standard sub-pixel 9.
  • one of the sub-pixels 9 at each end of each row of sub-pixels 9 corresponds to one virtual pixel 2, and the size of the sub-pixel 9 in the row direction is a standard sub-pixel 9 1/2 of the size in the row direction.
  • the area of such a sub-pixel 9 should be Half of the area of the standard sub-pixel 9, that is, its "width (i.e., its dimension in the row direction)" is preferably half the width of the standard sub-pixel 9.
  • each sub-pixel 9 necessarily corresponds to one or more virtual pixels 2, whereby the content (display component) that each sub-pixel 9 should display can also be the original component of the corresponding color in the virtual pixel 2 corresponding thereto.
  • the specific calculation method can be as follows:
  • the display components of one sub-pixel 9 are obtained by multiplying the original components of the respective colors of the corresponding virtual pixels 2 by their respective scale coefficients.
  • the display component thereof can be jointly determined by a certain ratio of the original components of the corresponding colors of the virtual pixels 2 corresponding thereto.
  • the "proportion coefficient” is set in advance, and should generally be a non-negative number, preferably a number between 0 and 1.
  • each corresponding virtual pixel 2 has a scale factor (of course, a proportional coefficient of the color component corresponding thereto), and these scale coefficients may be the same or different; the proportion of the virtual pixels corresponding to different sub-pixels 9
  • the coefficients may also be the same or different; and for one virtual pixel 2, corresponding to three sub-pixels 9 of different colors, the scaling coefficient of the three sub-pixels (or the proportional coefficient of the original components of different colors) may also be Same or different.
  • the sum of the scale coefficients of the original components of the respective colors of the virtual pixels 2 corresponding to one sub-pixel 9 is one.
  • each sub-pixel 9 needs to represent a plurality of virtual pixels 2 at this time Therefore, the total brightness of the display panel is related to the above scale factor, and if the sum of the scale factors of the original components of the corresponding color of the virtual pixel 2 corresponding to one sub-pixel 9 is 1, the overall brightness of the display panel can be ensured. The same, to ensure the authenticity of the display.
  • one of the virtual pixels 2 corresponding thereto corresponds to the middle of the sub-pixel 9, and the proportional coefficient of the original component of the corresponding color of the virtual pixel 2 Between 0.5 and 0.9.
  • each of the standard sub-pixels 9 corresponds to two virtual pixels 2, and one of them is located directly below the sub-pixel 9, and the other is located above the side thereof, and the corresponding sub-pixel 9 located directly below
  • the proportional coefficient is preferably 0.5 to 0.9 (the corresponding proportional coefficient of the other sub-pixel 9 is preferably 0.1 to 0.4) because the relative positional relationship between the two virtual pixels 2 and the sub-pixel 9 is different, so the corresponding proportional coefficient It should also be different.
  • the display component R S2G3 may be equal to:
  • R S2G3 X ⁇ R 12 + Y ⁇ R 22 ;
  • R 12 and R 22 are the red original components in the virtual pixels 2 of coordinates (1, 2) and (2, 2), respectively, and X and Y are corresponding scale coefficients; at this time, X and Y preferably have a sum of 1, Y is preferably between 0.5 and 0.9.
  • the coordinate representation manner of the virtual pixel is the preceding row, for example, the (2, 1) coordinate represents the second virtual pixel 2 of the second row, that is, the virtual pixel 2 labeled 21 in the figure.
  • the corresponding scale factor of the virtual pixel 2 corresponding thereto can select other different values as needed.
  • each sub-pixel 9 may also be calculated according to the display component of each sub-pixel 9.
  • the gray scale can be calculated from the brightness by the following formula:
  • A (G/255) ⁇ ⁇ A 255 ;
  • A is the calculated brightness of a certain sub-pixel 9 (ie, display component)
  • a 255 is its brightness at 255 gray level
  • G is a gray level value corresponding to brightness A, which is an integer between 0 and 255
  • ⁇ is the gamma value set by this time.
  • each sub-pixel 9 is caused to display its corresponding gray scale, thereby obtaining a corresponding picture.
  • FIG. 4 shows a comparison of the same image displayed by the existing method and the method of the embodiment. It can be seen that the image displayed by the method according to the embodiment has higher resolution, finer structure, smoother color transition, and display effect. better.
  • each sub-pixel ie, the standard sub-pixel
  • each sub-pixel is “shared” by two virtual pixels, or each The sub-pixels are used to represent the contents of two virtual pixels at the same time.
  • the resolution of the visual effect can be doubled to the actual resolution, and the display effect is good; at the same time, each sub-pixel is displayed.
  • the content is directly calculated based on a plurality of specific virtual pixels, without complicated operations such as "partition, layering, area ratio", so the process is simple and the amount of calculation is small.

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Abstract

一种显示方法和显示面板，该显示面板包括多行子像素（9），在列方向上相邻的子像素（9）颜色不同且在行方向上相差半个子像素（9）的位置；该显示方法包括：生成由虚拟像素（2）矩阵组成的原始图像；将各虚拟像素（2）对应到采样位置（8）中，其中在每一个分布段中相邻的对应于虚拟像素（2）的采样位置（8）之间间隔有一个采样位置（8），相邻分布段之间间隔有3个采样位置（8），且在任意相邻的两行采样位置（8）中，与虚拟像素（2）对应的采样位置（8）不处在同一列上；其中每个采样位置（8）对应于一行中的两个子像素（9）之间和另一行中的一个子像素（9）中部的位置；由与各子像素（9）对应的虚拟像素（2）的相应颜色的原始分量计算各子像素（9）的显示分量。该显示方法和显示面板适用于进行高分辨率显示。

Description

显示方法和显示面板 技术领域
本发明属于显示技术领域，具体涉及显示方法和显示面板。
背景技术
如图1所示，传统显示面板包括多个排成矩阵的“像素1”，其中每个像素1由排在一行中且相邻的红、绿、蓝3个子像素9构成，每个子像素9可独立发出一定亮度的光(当然为其特定颜色的光)，通过混光作用，3个子像素9共同构成屏幕上的一个可独立显示的“点”。
随着技术的发展，显示面板分辨率越来越高，这就要求其中像素(或子像素)的尺寸不断缩小。但由于工艺限制，子像素尺寸不可能无限缩小，这就成为限制分辨率进一步提高的瓶颈。为解决以上问题，可采用虚拟算法技术，通过“共用”子像素的方式提高用户“感觉”到的分辨率；也就是说，可使一个子像素用于显示多个像素中的内容，从而使视觉效果上的分辨率高于实际的物理分辨率。
但是，现有的虚拟算法技术效果不理想：有的会造成图像失真、锯齿状纹路、网格状斑点等不良；有的需要进行画面分区、分层、面积比等运算，过程复杂，所需的运算量大。
发明内容
本发明所要解决的技术问题包括，针对现有的高分辨率显示技术效果不理想的问题，提供一种可实现高分辨率显示且效果好的显示方法以及显示面板。
解决本发明技术问题所采用的技术方案是一种显示方法，用于显示面板，所述显示面板包括多行子像素，每行子像素由3种 颜色的子像素循环排列而成，各行子像素循环顺序相同，在列方向上相邻的子像素颜色不同且在行方向上相差1/2个子像素的位置；所述显示方法包括：
S1、生成由虚拟像素矩阵组成的原始图像；
S2、将各虚拟像素对应到采样位置中，其中在每一行采样位置中，与虚拟像素相对应的采样位置分布在如下分布段中，在每一个分布段中相邻的对应于虚拟像素的采样位置之间间隔有一个采样位置，相邻分布段之间间隔有3个采样位置，且在任意相邻的两行采样位置中，与虚拟像素对应的采样位置不处在同一列上；其中，每个采样位置对应于一行中的两个子像素之间和另一行中的一个子像素中部的位置；
S3、根据与各子像素对应的虚拟像素的相应颜色的原始分量计算各子像素的显示分量。
其中，以上所述的“行”、“列”是虚拟像素(或子像素)阵列中的两个互相垂直的方向，其与子像素的形状、显示面板放置方式、引线布置形式等无关。
优选的是，所述显示面板为液晶显示面板或有机发光二极管显示面板。
优选的是，所述3种颜色的子像素为红色子像素、蓝色子像素、绿色子像素。
优选的是，在任意两行相邻的采样位置中，其中一行中每个分布段中均具有两个对应虚拟像素的采样位置；另一行中，两端的两个分布段中分别具有一个和三个对应虚拟像素的采样位置，其余分布段中均具有两个对应虚拟像素的采样位置。
优选的是，所述显示面板的第一行和最后一行子像素在列方向上的尺寸为标准子像素在列方向上的尺寸的1/2。
优选的是，除第一行和最后一行子像素外，其余每行子像素两端的子像素中有一个与一个虚拟像素对应，该子像素在行方向上的尺寸为标准子像素在行方向上的尺寸的1/2。
优选的是，所述S3步骤包括：一子像素的显示分量由与其对应的各虚拟像素的相应颜色的原始分量乘以各自的比例系数后相加得到。
进一步优选的是，与一子像素对应的各虚拟像素的相应颜色的原始分量的比例系数的和为1。
进一步优选的是，与任一标准子像素的虚拟像素的相应颜色的原始分量的比例系数在0.5～0.9之间。
优选的是，所述原始分量和显示分量均为亮度，且在步骤S3之后，还包括：S4、根据各子像素的显示分量计算出各子像素的灰阶。
本发明还提供了一种显示面板，所述显示面板包括多行子像素，每行子像素由3种颜色的子像素循环排列而成，各行子像素的循环顺序相同，在列方向上相邻的子像素颜色不同且在行方向上相差1/2个子像素的位置。
本发明的显示方法中，基本上每个子像素(除去边缘的少数子像素之外，后文称为标准子像素)显示的内容都由两个与该子像素相邻的虚拟像素共同决定，即每个子像素由两个虚拟像素“共用”，或者说每个子像素同时用于表现两个虚拟像素的内容，再结合特定的显示面板，即可使视觉效果上的分辨率达到实际分辨率的两倍，且显示效果好；同时，其每个子像素显示的内容直接由多个特定虚拟像素计算得到，而不需进行“分区、分层、面积比”等复杂运算，故过程简单，运算量小。
本发明特别适用于进行高分辨率显示。
附图说明
图1为现有显示面板的结构示意图；
图2为本发明的实施例1的显示方法的一种显示面板的结构示意图；
图3为本发明的实施例1的显示方法中虚拟像素对应位置的 示意图；
图4为现有方法和本发明实施例1的方法显示效果的对比图；
其中附图标记为：1、像素；2、虚拟像素；8、采样位置；9、子像素。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
实施例1：
如图2至图4所示，本实施例提供一种显示方法，其适用于本实施例的显示面板。
本实施例的显示面板包括多行子像素9，每行子像素9由3种颜色的子像素9轮流循环排列而成，各行中子像素9的循环顺序相同。优选的，3种颜色的子像素9分别为红色子像素9、蓝色子像素9、绿色子像素9，且本实施例中以此作为例子进行描述，即本实施例的显示面板为RGB模式；当然在其他排列方式的显示面板中，如包含其他颜色的排列，或者每个像素中子像素数目为2、4或其他数目的排列，也可以采用本发明的显示方法。
也就是说，如图2所示，在每行中，3种不同颜色的子像素9构成一循环单元(如“红色子像素9-绿色子像素9-蓝色子像素9的循环单元”)，多个循环单元构成一行子像素9；在不同行中，起始子像素9颜色不同，但子像素9的循环排列顺序相同，例如，图2第一行中第一个为红色子像素9，并按“红色子像素9-绿色子像素9-蓝色子像素9-红色子像素9”的顺序循环排列，而第二行第一个为绿色子像素9，并按“绿色子像素9-蓝色子像素9-红色子像素9-绿色子像素9”的顺序排列，可见，这两行子像素9的循环顺序实际上相同。
同时，在列方向上相邻的子像素9在行方向上相差1/2个子像素9的位置，且相同颜色的子像素9不处在同一列上。
也就是说，本实施例的显示面板中相邻的行是不“对齐”的，而是“错开”半个子像素9的位置，从而在列方向上，除边缘的少数子像素9外，每个子像素9在一侧的列方向上均与一行中的两个子像素9相邻；又由于相同颜色子像素9不处在同一列上，故以上所述的相邻的两个子像素9的颜色必然与该子像素9不同。这样，任意3个相邻且不同颜色的子像素9会组成一“品字形”，此种排列结构使3种颜色的子像素9分布更均匀，显示品质更好。
优选的，本实施例的显示面板为有机发光二极管(OLED，Organic Light-Emitting Diode)面板，即其子像素9包括发光单元(有机发光二极管)，各子像素9的发光单元直接发射所需颜色和亮度的光；或者，显示面板也可为液晶显示面板，即其子像素9包括滤光单元，透过各子像素9滤光单元的光的即成为所需的颜色和亮度。
总之，显示面板的具体类型是多样的，只要其子像素9分布符合上述条件即可，在此不再详细描述。
具体的，本实施例的显示方法包括以下步骤：
S101、根据图像信息生成由虚拟像素2矩阵组成的原始图像。
也就是说，对来自显卡等的图像信息(也就是要显示的图像的内容)进行处理，用其生成原始图像，该原始图像由多个“点(即虚拟像素2)”的矩阵组成，每个虚拟像素2包括红、绿、蓝3种颜色的原始分量，以表示该“点”处红、绿、蓝3种颜色的“量”分别是多少。
其中，以上的“原始分量”和后续的“显示分量”等中的“分量”都是指相应位置所应显示的颜色的“量”，其可用“亮度”表示，且本实施例中以此为例；当然，只要各“分量”能表示所要显示的“量”，其也可采取其他的度量参数，例如可用“灰阶”、“饱和度”等作为“分量”的单位。
S102、将各虚拟像素2对应到采样位置8中，其中在每一行 采样位置中，与虚拟像素2相对应的采样位置8分布在如下分布段中，在每一个分布段中相邻的对应于虚拟像素2的采样位置8之间间隔有一个采样位置8，相邻分布段之间间隔有3个采样位置8，且在任意相邻的两行采样位置8中，与虚拟像素2对应的采样位置8不处在同一列上；其中，每个采样位置8对应于一行中的两个子像素9之间和另一行中的一个子像素9中部的位置。
也就是说，如图2所示，按照以上的排列方式，显示面板上会形成多个“采样位置8”；具体的，每个采样位置8都是设在相邻的两行子像素9之间的，且任意一个采样位置8位于一行中的两个相邻的子像素9之间，也位于另一个相邻行中的一个子像素9的中间；或者说，对每3个构成“品字形”的子像素9，其中心位置即为一个采样位置8。可见，各采样位置8也构成一个“矩阵”，其行数比子像素9的行数少1，列数比一行中子像素9的个数(不同行子像素9不对齐，故不称列数)的2倍少2。当然，应当理解，采样位置8并非真实存在的实体结构，而仅用于表示相应位置，全部的采样位置8构成用于定位各个虚拟像素的位置矩阵。
本步骤如图3所示，将虚拟图像中的各虚拟像素2对应到上述各采样位置8中，以便在后续过程中确定各子像素9的显示分量。
在图3中，为了清楚，不再标出采样位置8，而只标出虚拟像素2；其中每个虚拟像素2由一个三角形表示，三角形内的数字mn表示第m行第n列的虚拟像素2，因此有三角形占据的采样位置8即表示存在对应的虚拟像素2，其余无三角形占据的采样位置8则表示无虚拟像素2。具体的，虚拟像素2与采样位置8的对应关系如下：
如图3所示，各行虚拟像素2依次对应到各行采样位置8中，且在两相邻行采样位置8中，对应虚拟像素2的采样位置8分别位于奇数和偶数位置；由此，相邻行中对应虚拟像素2的采样位置8在列方向上必然不相邻，且代表各虚拟像素2的三角形的顶点均朝向相同方向。
而且，虚拟像素2必然是对应到各行采样位置8的“分布段”中，相邻分布段之间间隔有3个采样位置8，而同一分布段中对应于虚拟像素2的采样位置8间隔一个采样位置分布，除两端的分布段之外，其余每个分布段中对应两个虚拟像素2，这样多数分布段均包括3个采样位置8(两个对应于虚拟像素2的采样位置8，和它们之间的一个未对应于虚拟像素2的采样位置8)；同时，除了两端的分布段之外，相邻行中的其余分布段“错开”排布，即在任意相邻的两行采样位置8中，与虚拟像素2对应的采样位置8不处在同一列上。也就是说，如图3所示，在不考虑边缘的情况下，对应于虚拟像素2的采样位置8每两个为“一对”，且每“对”与虚拟像素2相对应的采样位置8均位于相邻行的各“对”与虚拟像素2相对应的采样位置8之间的间隙处。
可见，对1920列×1080行的虚拟图像，共需约(不考虑边缘)5760列×1080行采样位置8；相应的，也就是需要1081行子像素9，且每行有2881个子像素9(因为2881×2-2＝5760)。可见，对1920列×1080行分辨率的虚拟图像，在现有显示方法中，需要(3×1920×1080)个子像素9进行显示；而根据本实施例的显示方法，其所需的子像素9的数量是2881×1081，近似等于现有显示面板所需子像素9数量的一半，从而本实施例的显示方法可在物理分辨率不变的情况下，使显示分辨率提高1倍左右。
优选的，在任意两行相邻的采样位置8中，其中一行中每个分布段中均有两个对应于虚拟像素2的采样位置8；而在另一行中，两端的两个分布段中分别具有一个和三个对应于虚拟像素2的采样位置8，其余分布段中均具有两个对应于虚拟像素2的采样位置8。
显然，若所有行的各分布段中均有两个采样位置8对应于虚拟像素2，则必然导致某些行一端的3个采样位置8(即对应相邻行中第一个分布段的那些采样位置8)都不对应于虚拟像素2，而这会造成图像边缘的显示失真。为此，优选采用如图3所示的方式，奇数行(当然也可为偶数行)采样位置8中的每个分布段中都具 有两个对应于虚拟像素2的采样位置8，而偶数行(当然也可为奇数行)采样位置8中，其中部的每个分布段中也是有两个对应于虚拟像素2的采样位置8；但其两端的两个分布段中，一个分布段中有3个对应于虚拟像素2的采样位置8(当然该采样段必然与奇数行采样位置8中的采样段部分重合，即如图3中第二行中对应于虚拟像素21、22和23的采样位置8的分布段和第一行中对应于虚拟像素11和12的采样位置8的分布段部分重合)，另一个中则只有一个对应于虚拟像素2的采样位置8(如图3中第二行对应于虚拟像素210的采样位置8的分布段)，从而尽量减小图像边缘的显示失真。
可见，在按照以上的对应关系将各虚拟像素2对应到采样位置8中之后，每个虚拟像素2必然与其所对应的采样位置8周围的3个子像素9对应(即图3中表示虚拟像素2的三角形的三个顶点所指的子像素9)；相应的，每个子像素9也必然与一个或多个虚拟像素2对应(即有一个或多个表示虚拟像素2的三角形的顶点指到其中)。
具体的，本实施例中，除了少数边缘的子像素9外，每个标准子像素9都与两个虚拟像素2对应，且这两个虚拟像素2中的一个对应于该子像素9的中部(即图3中位于各子像素9正下方的虚拟像素2)，另一个对应于该子像素9的边缘部(即图3中位于各子像素9左上角或右上角的虚拟像素2)。
优选的，显示面板的第一行和最后一行子像素9在列方向上的尺寸为标准子像素在列方向上的尺寸的1/2。所谓标准子像素是指不处在显示面板边缘的子像素；或者说，标准子像素是除了显示面板的第一行和最后一行以及每一行两端的子像素之外的子像素。
可见，第一行和最后一行子像素9对应的虚拟像素2中，多数子像素9都只对应一个虚拟像素2(当然也有的对应两个虚拟像素2或不对应虚拟像素2)，因此，为保证最终显示结果的均衡，这两行子像素9的面积应为其余子像素9面积的一半，故可将这 两行子像素9的“高度(即其在列方向上的尺寸)”设置为标准子像素9高度的一半。
优选的，除第一行和最后一行子像素9外，其余每行子像素9两端的子像素9中有一个与一个虚拟像素2对应，该子像素9在行方向上的尺寸为标准子像素9在行方向上的尺寸的1/2。
可见，在多数行的子像素9中，若其一端的子像素9对应两个虚拟像素2，则其另一端的子像素9就只对应一个虚拟像素2，故这样的子像素9的面积应为标准子像素9面积的一半，即其“宽度(即其在行方向上的尺寸)”优选为标准子像素9宽度的一半。
S103、根据与各子像素9对应的虚拟像素2的相应颜色的原始分量计算各子像素9的显示分量。
如前所述，每个子像素9必然与一个或多个虚拟像素2对应，由此每个子像素9应显示的内容(显示分量)也就可以由与其对应的虚拟像素2中相应颜色的原始分量计算得到，其具体计算方式可如下：
一子像素9的显示分量由与其对应的各虚拟像素2的相应颜色的原始分量乘以各自的比例系数后相加得到。
也就是说，对于任意一个子像素9，其显示分量可由与其对应的虚拟像素2的相应颜色的原始分量按照一定的比例共同决定。
其中，“比例系数”是预先设定的，通常应为非负数，优选为0～1之间的数。对每个子像素9，其对应的每个虚拟像素2均有一个比例系数(当然是与其对应的颜色分量的比例系数)，这些比例系数可相同或不同；不同子像素9对应的虚拟像素的比例系数也可相同或不同；而对于一个虚拟像素2，其对应三个不同颜色的子像素9，则其相对这三个子像素的比例系数(或者说其不同颜色的原始分量的比例系数)也可相同或不同。
优选的，与一子像素9对应的虚拟像素2的相应颜色的原始分量的比例系数的和为1。
可见，由于此时每个子像素9需要表示多个虚拟像素2的内 容，故显示面板的总亮度是与以上的比例系数相关的，而若对应一子像素9的虚拟像素2的相应颜色的原始分量的比例系数的和为1，则可保证显示面板的整体亮度不变，保证显示效果的真实性。
优选的，对于与两个虚拟像素2对应的子像素9(标准子像素)，其中一个与其对应的虚拟像素2对应该子像素9的中部，该虚拟像素2的相应颜色的原始分量的比例系数在0.5～0.9之间。
如前所述，每个标准子像素9都对应两个虚拟像素2，且其中一个位于该子像素9的正下方，另一个位于其侧上方，则该位于正下方的子像素9的相应的比例系数优选在0.5～0.9(另一个子像素9的相应的比例系数优选在0.1～0.4)，这是因为这两个虚拟像素2与该子像素9的相对位置关系不同，故相应的比例系数也应不同。
例如，具体的，对坐标S2G3的红色子像素9，其显示分量RS2G3可等于：
RS2G3＝X×R12+Y×R22；
其中，R12和R22分别为坐标(1，2)和(2，2)的虚拟像素2中的红色原始分量，X、Y为相应的比例系数；此时X、Y优选和为1，Y优选在0.5～0.9之间。其中，本实施例中虚拟像素的坐标表示方式为先行后列，例如(2，1)坐标即表示第二行的第二个虚拟像素2，即图中标有21的虚拟像素2。
当然，对于除了标准子像素9以外的边缘的子像素9，与其对应的虚拟像素2的相应的比例系数可根据需要选取其他不同的值。
可见，以上计算只要用比例系数和原始分量进行乘法和加法运算即可，过程简单，所需的运算量小。
当然，应当理解，如果采用其他算法根据对应虚拟像素2的相应颜色的原始分量计算各子像素9的显示分量，也是可行的。
S104、优选的，当以上的原始分量、显示分量等为亮度时，还可根据各子像素9的显示分量计算出各子像素9的灰阶。
具体的，对于256灰阶的显示面板，可通过以下公式由亮度计算灰阶：
A＝(G/255)γ×A255；
其中，A为计算得到的某子像素9的亮度(即显示分量)，A255为其在255灰阶时的亮度，G为对应亮度A的灰阶值，其为0～255间的整数；γ为时此设定的gamma值。
此时，A、A255、γ均已知，因此可相应的求出灰阶G，以用于后续步骤。
当然，应当理解，如果此时采用的是64灰阶等其他模式，则公式也要进行相应的变化；或者，若原始分量、显示分量采用的是其他度量单位，则此处的计算方式也不同。
S105、按照计算出的灰阶值驱动各子像素9进行显示。
也就是说，使每个子像素9显示其所对应的灰阶，从而得到相应的画面。图4展示出了通过现有方法和本实施例的方法显示的同一幅图像的对比，可见，按照本实施例的方法显示的图像分辨率更高，结构更细腻，颜色过渡更平滑，显示效果更好。
本发明的显示方法中，基本上每个子像素(即标准子像素)显示的内容都由与其相邻的两个虚拟像素共同决定，即每个子像素由两个虚拟像素“共用”，或者说每个子像素同时用于表现两个虚拟像素的内容，再结合特定的显示面板，即可使视觉效果上的分辨率达到实际分辨率的两倍，且显示效果好；同时，其每个子像素显示的内容直接根据多个特定虚拟像素计算得到，而不需进行“分区、分层、面积比”等复杂运算，故过程简单，运算量小。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领 域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (15)

  1. 一种用于显示面板的显示方法，所述显示面板包括多行子像素，每行子像素由3种颜色的子像素循环排列而成，各行子像素的循环顺序相同，在列方向上相邻的子像素颜色不同且在行方向上相差1/2个子像素的位置，其特征在于，所述显示方法包括：
    S1、生成由虚拟像素矩阵组成的原始图像；
    S2、将各虚拟像素对应到采样位置中，其中在每一行采样位置中，与虚拟像素相对应的采样位置分布在如下分布段中，在每一个分布段中相邻的对应于虚拟像素的采样位置之间间隔有一个采样位置，相邻分布段之间间隔有3个采样位置，且在任意相邻的两行采样位置中，与虚拟像素对应的采样位置不处在同一列上；其中，每个采样位置对应于一行中的两个子像素之间和另一行中的一个子像素中部的位置；
    S3、根据与各子像素对应的虚拟像素的相应颜色的原始分量计算各子像素的显示分量。
  2. 根据权利要求1所述的显示方法，其特征在于，
    所述显示面板为液晶显示面板或有机发光二极管显示面板。
  3. 根据权利要求1所述的显示方法，其特征在于，
    所述3种颜色的子像素为红色子像素、蓝色子像素、绿色子像素。
  4. 根据权利要求1至3中任意一项所述的显示方法，其特征在于，
    在任意两行相邻的采样位置中，其中一行中每个分布段中均具有两个对应于虚拟像素的采样位置；另一行中，两端的两个分布段中分别具有一个和三个对应于虚拟像素的采样位置，其余分布段中均具有两个对应于虚拟像素的采样位置。
  5. 根据权利要求1至3中任意一项所述的显示方法，其特征在于，
    所述显示面板的第一行和最后一行子像素在列方向上的尺寸为标准子像素在列方向上的尺寸的1/2。
  6. 根据权利要求1至3中任意一项所述的显示方法，其特征在于，
    除第一行和最后一行子像素外，其余每行子像素两端的子像素中有一个对应于虚拟像素，该子像素在行方向上的尺寸为标准子像素在行方向上的尺寸的1/2。
  7. 根据权利要求1至3中任意一项所述的显示方法，其特征在于，所述S3步骤包括：
    一子像素的显示分量由与其对应的各虚拟像素的相应颜色的原始分量乘以各自的比例系数后相加得到。
  8. 根据权利要求7所述的显示方法，其特征在于，
    与一子像素对应的各虚拟像素的相应颜色的原始分量的比例系数的和为1。
  9. 根据权利要求7所述的显示方法，其特征在于，
    与任一标准子像素的中部对应的虚拟像素的相应颜色的原始分量的比例系数在0.5～0.9之间。
  10. 根据权利要求1至3中任意一项所述的显示方法，其特征在于，所述原始分量和显示分量均为亮度，且在步骤S3之后，还包括：
    S4、根据各子像素的显示分量计算出各子像素的灰阶。
  11. 一种显示面板，包括多行子像素，每行子像素由3种颜色的子像素循环排列而成，各行子像素的循环顺序相同，在列方向上相邻的子像素颜色不同且在行方向上相差1/2个子像素的位置。
  12. 根据权利要求11所述的显示面板，其中所述显示面板的第一行和最后一行子像素在列方向上的尺寸为标准子像素在列方向上的尺寸的1/2。
  13. 根据权利要求11所述的显示面板，其中除第一行和最后一行子像素外，其余每行子像素两端的子像素中有一个对应于虚拟像素，该子像素在行方向上的尺寸为标准子像素在行方向上的尺寸的1/2。
  14. 根据权利要求11所述的显示面板，其中所述3种颜色的子像素为红色子像素、蓝色子像素、绿色子像素。
  15. 根据权利要求11所述的显示面板，其中所述显示面板为液晶显示面板或有机发光二极管显示面板。
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