WO2018120021A1 - 显示面板、显示装置和像素渲染方法 - Google Patents

显示面板、显示装置和像素渲染方法 Download PDF

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Publication number
WO2018120021A1
WO2018120021A1 PCT/CN2016/113509 CN2016113509W WO2018120021A1 WO 2018120021 A1 WO2018120021 A1 WO 2018120021A1 CN 2016113509 W CN2016113509 W CN 2016113509W WO 2018120021 A1 WO2018120021 A1 WO 2018120021A1
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Prior art keywords
pixel
display panel
displayed
pixel unit
image
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PCT/CN2016/113509
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English (en)
French (fr)
Inventor
陶霖密
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陶霖密
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Priority to PCT/CN2016/113509 priority Critical patent/WO2018120021A1/zh
Priority to CN201680091653.2A priority patent/CN110337686A/zh
Publication of WO2018120021A1 publication Critical patent/WO2018120021A1/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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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

Definitions

  • the present invention relates to a display panel and a display device, which can be used as a color display panel and display device for various devices such as various mobile phones, tablet computers, notebook computers, displays, televisions, and the like, and also relates to a pixel rendering method of the display device.
  • a pixel unit on a display device of the prior art is composed of a plurality of sub-pixel units of different colors.
  • a color display contains multiple pixel units, such as 640x480, 1024x768, 1920x1080 pixel units, and so on.
  • Each pixel unit includes two or three or more sub-pixel units of different colors.
  • a common one is that each pixel unit has three sub-pixel units, that is, a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit.
  • the three sub-pixel units are arranged in parallel to form one pixel unit.
  • each pixel unit is generally square, and therefore, the sub-pixel unit is rectangular with an aspect ratio of 3:1, as shown in FIG.
  • a plurality of pixel units are repeatedly arranged to form a color display screen as shown in FIG.
  • some of these pixel units are self-illuminating, such as LED color display, Active Matrix/Organic Light Emitting Diode (AMOLED) color display, etc., some of which do not emit light but back light.
  • AMOLED Active Matrix/Organic Light Emitting Diode
  • LCD color display To provide a unified source of light, such as passive organic OLED (PMOLED) color display, LCD color display.
  • the existing technology is three colors of one image pixel of a color image to be displayed, and is displayed by a plurality of sub-pixel units of one pixel unit on the display device, and each sub-pixel unit has its own one. Between the counter electrode, the image pixel and the pixel unit of the display device Usually a one-to-one correspondence.
  • a display panel which may be composed of a plurality of pixel unit arrays, wherein each pixel unit does not have a sub-pixel unit, only a pair of electrodes, and only a specific primary color is displayed, the pair of electrodes
  • the brightness of the displayed specific primary colors is adjusted, and the primary colors displayed by the respective pixel units in the display panel are from a set of primary colors composed of a predetermined number of primary colors.
  • the display panel may be composed of a single pixel unit group repeatedly arranged, the number of pixel units in the pixel unit group corresponding to the number of primary colors in the primary color set, and the primary color and the primary color set displayed by the pixel unit in the pixel unit group The primary colors correspond one by one.
  • the primary colors displayed may be different for adjacent pixel units.
  • the primary colors displayed may be different for adjacent pixel units.
  • a pixel unit may be different from a primary color displayed by its upper, lower, left, and right adjacent pixel units.
  • the brightness of the primary color displayed by each pixel unit on the display panel may be the same as the brightness of the same primary color of the image pixel corresponding to the pixel unit on the display panel in the image to be displayed, together with each of the predetermined surrounding image pixels The brightness of the primary color is determined.
  • the brightness value S ab of the primary color S displayed by the pixel unit at (a, b) on the display panel may be the brightness value of the same color S of the image pixel P ab at the same position on the image to be displayed and the position is up and down
  • the luminance values PS a(b ⁇ 1) , PS a(b+1) , PS (a ⁇ 1)b , and PS (a+1)b of the same color of four adjacent image pixels are determined, where (a, b) represents the abscissa and the ordinate of the pixel unit in the display panel and the corresponding image pixel in the image to be displayed.
  • the brightness value S ab of the color displayed by any pixel unit on the display panel can be determined according to the following formula:
  • C 1 , C 2 are weight coefficients, are real numbers greater than 0, and C 1 >C 2 .
  • each pixel unit can be square.
  • the predetermined number of primary colors may be three primary colors of red, blue, and green.
  • a display device which may include: a display panel composed of a plurality of pixel unit arrays, wherein each pixel unit does not have a sub-pixel unit, only one pair of electrodes, and only one type is displayed a primary color, the pair of electrodes adjusting the brightness of the displayed primary color, the display
  • Each of the pixel units in the display panel displays a primary color set from a predetermined number of primary colors; and a driving circuit for transmitting a luminance signal of a primary color corresponding to each of the pixel units to each pixel unit of the display panel.
  • the display device may further include: an input image receiving part that receives input image data, the data of each image pixel of the input image data includes a brightness value of each of the predetermined number of primary colors; and a pixel rendering component, A pixel rendering operation is performed based on the input image data to generate a luminance value of a primary color displayed by each pixel unit on the display panel.
  • the display panel may be composed of a single pixel unit group repeatedly arranged, the number of pixel units in the pixel unit group corresponding to the number of primary colors in the primary color set, and the primary color and the primary color set displayed by the pixel unit in the pixel unit group The primary colors correspond one by one.
  • the primary colors displayed may be different for adjacent pixel units.
  • the primary colors displayed may be different for adjacent pixel units.
  • one pixel unit may be different from the primary colors displayed by the upper, lower, left, and right adjacent pixel units.
  • the pixel rendering component may perform a pixel rendering operation according to the following principle: the luminance value S ab of the primary color S displayed by the pixel unit at (a, b) on the display panel is the image pixel P ab at the same position on the image to be displayed.
  • the brightness value of the same color S and the brightness values of the same color of the four adjacent image pixels of the position up and down, PS a(b-1) , PS a(b+1) , PS (a-1)b , and PS (a+1)b determines that (a, b) represents the abscissa and the ordinate of the pixel unit in the display panel and the corresponding image pixel in the image to be displayed.
  • the pixel rendering component may determine the brightness value S ab of the color displayed by any pixel unit on the display panel according to the following formula:
  • C 1 and C 2 are weight coefficients, which are real numbers greater than 0, and C 1 >C 2 .
  • each pixel unit can be square.
  • the predetermined number of primary colors are three primary colors of red, blue, and green.
  • a pixel rendering method which cooperates with the above display device, and is configured to perform a pixel rendering operation according to image data of an image to be displayed to generate each pixel unit on the display panel.
  • the brightness value of the displayed primary color wherein the pixel rendering operation is performed according to the following principle, and the brightness of the primary color displayed by each pixel unit on the display panel is determined by the image to be displayed.
  • the brightness of the same primary color of the image pixel corresponding to the pixel unit on the display panel is determined along with the brightness of the same primary color of each of the predetermined surrounding image pixels.
  • the pixel rendering operation may be performed according to the following principle: the luminance value S ab of the primary color S displayed by the pixel unit at (a, b) on the display panel is the image pixel at the same position on the image to be displayed.
  • PS (a+1)b are determined, wherein (a, b) represents the abscissa and the ordinate of the pixel unit in the display panel and the corresponding image pixel in the image to be displayed.
  • the brightness value S ab of the color displayed by any pixel unit on the display panel may be determined according to the following formula:
  • C 1 and C 2 are weight coefficients, which are real numbers greater than 0, and C 1 >C 2 .
  • the display panel and the display device according to the embodiments of the present invention subvert the pixel unit configuration of the color display device, which can substantially increase the pixel density, greatly reduce power consumption, and maintain superior image display capability.
  • FIG. 1 illustrate an example of three types of pixel units on a display panel in the case where an RGB primary color set is employed, according to an embodiment of the present invention.
  • Fig. 2(a) exemplarily shows a composition diagram of a single pixel unit group under the RGB primary color mechanism
  • Fig. 2(b) schematically shows a part of a display panel composed of a pixel unit group repeatedly arranged.
  • Fig. 3 schematically shows a portion of a display screen arranged in the same color between lines.
  • FIG. 4 shows a schematic block diagram of a display device 100 in accordance with one embodiment of the present invention.
  • 5(a)-(d) are schematic diagrams showing display of a three primary color pixel unit group display screen from image data to a panel according to an embodiment of the present invention.
  • FIG. 6 shows a schematic diagram of a square pixel unit composed of RGB sub-pixel units in a conventional display panel.
  • FIG. 7 shows a schematic diagram of a conventional plurality of pixel units repeatedly arranged to form a color display screen.
  • Figures 8(a)-(c) show schematic diagrams of conventional displays from image data to panel display.
  • pixel also known as pixel, is the basic unit of image display, translated from English "pixel”, pix is a common shorthand for English word picture, plus the English word “element” element, it gets pixel, so "pixel” means The meaning of "image elements”.
  • pixels on the display are referred to as “pixel units” and the pixels on the image are referred to as “image pixels.”
  • primary color refers to the color representation of image pixels, such as red (R), green (G), blue (B) in RGB is referred to as the three primary colors; red in RGBW (R) ), green (G), blue (B), white (W) are also primary colors; cyan, magenta, yellow and black (CMYK color gamut, common in the printing industry and printers) are also primary colors.
  • the present invention is not limited thereto, and the type and number of primary colors may be different from the above, and the primary colors may be set as needed.
  • the primary color system may not be RGB as generally described, but may be, for example, orange, green, or purple, as long as The primary color mechanism can be mixed to get any color.
  • the pixel unit type of the display panel is RGB three primary color pixel units
  • the present invention is not limited thereto, and the types and numbers of colors of the pixel units may be different.
  • a pixel unit of a prior art display device is composed of a plurality of sub-pixel units of different colors
  • the present invention is the most subversive invention of the color display device invention for more than 60 years: no sub-pixel in one pixel unit
  • the unit has only one pair of electrodes per pixel unit and displays only a specific primary color, and the pair of electrodes adjusts the brightness of the displayed primary colors. Therefore, in the present disclosure, the concept of a rectangular sub-pixel unit is essentially no longer present.
  • a conventional pixel unit is composed of sub-pixel units, and can display any color.
  • the three colors of one image pixel in the color image to be displayed are displayed together by a plurality of pixel units on the display device, and the two are in a one-to-many relationship.
  • the prior art is three colors of one image pixel of a color image to be displayed, by a corresponding pixel unit on the display device.
  • the plurality of sub-pixel units are displayed together, and the image pixels of the color image have a one-to-one correspondence with the pixel units of the display device.
  • a display panel which is composed of a plurality of pixel unit arrays, wherein each pixel unit does not have a sub-pixel unit, only a pair of electrodes, and only a specific primary color is displayed, and the pair of electrodes are adjusted.
  • the brightness of the displayed primary colors, the primary colors displayed by the respective pixel units in the display panel are from a set of primary colors consisting of a predetermined number of primary colors.
  • FIG. 1 illustrate an example of three types of pixel units on a display panel in the case where an RGB primary color set is employed, according to an embodiment of the present invention.
  • pixel units As shown in (a), (b), and (c) of FIG. 1, corresponding to the RGB primary color mechanism, there are three kinds of pixel units, a red pixel unit, a green pixel unit, and a blue pixel unit on the display panel.
  • the display panel is composed of a red pixel unit, a green pixel unit, and a blue pixel unit array.
  • adjacent pixel units display different primary colors in the same row. For example, in a row, two red pixel cells cannot appear adjacent, and similarly, two green pixel cells cannot appear adjacent to each other, and two blue pixel cells cannot appear adjacent to each other.
  • adjacent pixel units display different primary colors in the same column. For example, in one column, two red pixel cells cannot appear adjacent, and similarly, two green pixel cells cannot appear adjacent to each other, and two blue pixel cells cannot appear adjacent to each other.
  • the pixel unit is different from the primary colors displayed by the upper, lower, left, and right adjacent pixel units.
  • the upper, lower, left, and right adjacent pixel units of one red pixel unit cannot be red pixel units
  • the upper, lower, left, and right adjacent pixel units of one green pixel unit cannot be red pixel units
  • the upper, lower, left, and right adjacent pixel units of one blue pixel unit cannot be Red pixel unit.
  • the display panel is composed of a single pixel unit group repeated arrangement, the number of pixel units in the pixel unit group corresponding to the number of primary colors in the primary color set, and the primary color and primary color set displayed by the pixel unit in the pixel unit group
  • the primary colors correspond one by one.
  • the pixel unit group is repeatedly arranged to obtain a display screen.
  • the large display panel is cut to obtain a display screen of a desired size.
  • display and “display panel” have the same meaning and are used interchangeably.
  • the display screen or the display panel is described as being composed of pixel cell group repetitions, but it should be understood that, as is well known to those skilled in the art, due to the size and/or production factors or limitations of the display panel, The set of pixel cells at one or more edges of the display panel is incomplete.
  • each pixel unit is square in order to prevent deformation of the displayed image.
  • FIG. 2(a) exemplarily shows a composition diagram of a single pixel unit group under the RGB primary color mechanism, wherein the pixel unit group is sequentially arranged by a red pixel unit, a green pixel unit, and a blue pixel unit.
  • the pixel unit group includes three pixel units and is sorted in a red, green and blue manner.
  • the number, color, and ordering of pixel units in a pixel unit group may be different.
  • the arrangement of the three primary color pixel units may be blue red green, blue green red, and the like.
  • the pixel unit group may include N pixel units, and each pixel unit corresponds to one of N primary colors.
  • the display screen according to an embodiment of the present invention may be summarized as: three primary color pixel units constitute a pixel unit group, and the pixel unit group repeatedly forms a display screen.
  • the first primary color, the second primary color, and the third primary color pixel unit are respectively represented by P1, P2, and P3, and three pixel units in the pixel unit group are arranged in one row in the following manner:
  • P1, P2, and P3 are one of three primary colors, respectively, and are different from each other. It should be noted that although P1 is red in the following, P2 is green, and P3 is blue as an example, P1 may be green or blue, and any of P2 and P3 may be other colors. .
  • a pixel unit of all primary colors is included in one pixel unit group, and the number of each primary color pixel unit is equal within the same pixel unit group, which can avoid image color cast of the display and ensure display quality.
  • a pixel unit group can be composed of more pixel units.
  • the display can have more primary colors or more pixel units in the pixel unit group.
  • the color display screen according to the embodiment of the present invention is configured as long as the following conditions are met: the display screen is composed of a pixel unit group which is arranged in a different order by a predetermined number of pixel units of different primary colors arranged in one line.
  • the composition has at least two primary colors, and the color of any two adjacent pixel units is different.
  • Fig. 2(b) schematically shows a part of a display panel composed of a repeating arrangement of pixel unit groups.
  • adjacent pixel units have different colors in the same row, and adjacent pixel units also have different colors in the same column.
  • the pixel cell group repeating arrangement shown in FIG. 2(b) is an inter-line color arrangement, and the inter-line color arrangement is arranged. It means that the color of the pixel unit at the corresponding position between the rows is different, for example, the color of the adjacent pixel unit in the same column is different.
  • the manner in which the pixel unit groups are repeatedly arranged also includes the same color arrangement between lines.
  • the inter-line color arrangement means that the color of the pixel unit at the corresponding position between the lines is the same, that is, the pixel units in the same column have the same color.
  • Figure 3 is a schematic illustration of a portion of a display screen arranged in the same color between rows; as shown, the colors of the corresponding pixel cells between the different rows are the same, as indicated by the same color of the pixel cells in each column, such as the first
  • the pixel units of the column are all red, the pixel units of the second column are all green, etc.
  • the display panel may be a liquid crystal display panel, an emissive electroluminescent display panel, a plasma display panel, a field emission display panel, an electrophoretic display panel, a flash display panel, an incandescent display panel, an LED display panel, and an organic light emitting diode. Display panel, etc.
  • primary colors or primary colors can be designed as needed.
  • four primary colors of red, green, blue, and white can be selected, and other primary colors can also be included.
  • other primary colors can also be included. For example, cyan, magenta, etc.
  • the brightness of the primary color displayed by each pixel unit on the display panel is the brightness of the same primary color of the image pixel corresponding to the pixel unit on the display panel in the image to be displayed, together with each of the predetermined surrounding image pixels The brightness of the same primary color is determined.
  • a conventional pixel unit is composed of sub-pixel units.
  • the color screen display technology is as follows: three colors of one image pixel of a color image to be displayed are collectively displayed by a plurality of sub-pixel units of one pixel unit on the display device, and image pixels and pixels are collectively displayed. There is a one-to-one correspondence between the units. In other words, conventionally, the display of the color of an image pixel is performed by a corresponding pixel unit on the display screen.
  • three colors of one image pixel in a color image to be displayed are collectively displayed by a plurality of pixel units on a display device, and image pixels of the color image and pixel units of the display device are Is a one-to-many relationship.
  • a display panel in combination with a driving circuit, can constitute a display device. After receiving the color image, the luminance value of the primary color displayed by each pixel unit on the pixel panel is obtained by the pixel rendering technique, and is driven by the driving circuit, whereby the display panel can display the color image.
  • FIG. 4 shows a schematic block diagram of a display device 100 in accordance with one embodiment of the present invention.
  • the block diagram of the structure shows only the components that are closely related to the embodiments of the present invention.
  • the configuration is not limiting, nor is it not exhaustive, but may also include other components.
  • the display device 100 may include an input image receiving section 110, a pixel rendering section 120, a driving section 130, and a display panel 140.
  • the display panel 140 is composed of a plurality of pixel unit arrays, wherein each pixel unit does not have a sub-pixel unit, only a pair of electrodes, and only one primary color is displayed, and the pair of electrodes adjusts the brightness of the displayed primary colors, the display
  • the primary colors displayed by the individual pixel units in the panel are from a set of primary colors consisting of a predetermined number of primary colors.
  • the driving part 130 is configured to transmit a luminance signal of a primary color corresponding to each pixel unit to each pixel unit of the display panel.
  • the input image receiving section 110 is for receiving input image data, and the data of each image pixel of the input image data generally includes a luminance value of each of a predetermined number of primary colors.
  • the format of the input image data may be a conventional three-color "full-pixel" RGB format, or other sRGB, YCbCr, RGBW formats, and the like.
  • the input image receiving section 110 may include a function of performing gamut mapping on the input image data, for example, if the input data is in the RGBW format, to be in the RGB display panel To render on, you need to perform gamut mapping.
  • gamut mapping function may be incorporated into the input data receiving component 110, or may be implemented by other components independent of the mapping data receiving component 110 or a dedicated gamut mapping component.
  • the pixel rendering component 120 is configured to perform a pixel rendering operation based on the input image data to generate a luminance value of a primary color displayed by each pixel unit on the display panel.
  • the pixel rendering component 120 of the embodiment of the present invention is configured to perform a pixel rendering operation based on input image data (including input image data subjected to, for example, gamut mapping processing) such that three colors of one image pixel
  • input image data including input image data subjected to, for example, gamut mapping processing
  • the value is assigned to the plurality of display pixel units according to the rendering calculation formula, and one display pixel unit also receives the input of the plurality of image pixels to generate a luminance value for each of the pixel units on the display panel.
  • the driving part 130 transmits a signal to each of the pixel units of the display panel 140, thereby realizing that the input image data is displayed on the display panel in a manner that is pleasing to the viewer.
  • the prior art is for sub-pixel unit rendering, that is, the RGB value of the input image data is given to the sub-pixel unit of the corresponding pixel unit on the display panel, and the brightness value is provided thereto.
  • FIG. 8(a)-(c) are schematic diagrams showing image display from panel data to panel display of a conventional display, wherein FIG. 8(a) shows partial input image data of a color image having a plurality of image pixels.
  • P ij represents partial input image data of image pixels of the i-th row and j-th column
  • i and j are integers greater than or equal to 0; and
  • FIG. 8(b) specifically shows six of the images shown in FIG.
  • FIG. 8(c) shows that the conventional RGB display directly displays the image according to the numerical value of FIG. 8(b), that is, the color value of the sub-pixel unit of one pixel unit on the display directly corresponds to the sub-image in the corresponding image pixel on the image. The color value of the pixel.
  • the brightness of the primary color displayed by each pixel unit on the display panel is the brightness of the same primary color of the image pixel corresponding to the pixel unit on the display panel in the image to be displayed, together with the predetermined surrounding image.
  • the brightness of the same primary color of each pixel is determined.
  • the pixel rendering component 120 performs a pixel rendering operation in accordance with the principle that the luminance value S ab of the primary color S displayed on the pixel unit of (a, b) on the display panel 140 is the same position on the image to be displayed.
  • P ab luminance values of pixels of the same color as the S and the vertical and horizontal positions of the four pixels of the same color neighboring image luminance value PS a (b-1), PS a (b + 1), PS (a-1) b And PS (a+1)b are determined, wherein (a, b) represents the abscissa and the ordinate of the pixel unit in the display panel and the corresponding image pixel in the image to be displayed.
  • the pixel rendering component determines the luminance value S ab of the color displayed by any pixel unit on the display panel according to the following formula (1):
  • C 1 and C 2 are weight coefficients, which are real numbers greater than 0 and less than 1, and C 1 >C 2 .
  • FIG. 5(a)-(d) are schematic diagrams showing display of a three primary color pixel unit group display screen from image data to a panel according to an embodiment of the present invention, wherein FIG. 5(a) shows one having a plurality of image pixels. Partial input image data of a color image; wherein P ij represents partial input image data of image pixels of the i-th row and j-th column, i and j are integers greater than or equal to 0; FIG. 5(b) specifically shows FIG.
  • PS ij represents the value of the component of the image pixel P ij whose color is S. For example, if S ji is red on the display panel, PS ij represents the value of the red component in image pixel P ij . Therefore, in essence, as long as the weight of the current image pixel P and its surrounding adjacent image pixels is 1, so that the total brightness of each display pixel unit is normalized, it can be used as a rendering method of the display pixel unit.
  • Fig. 5(d) shows that the value calculated in Fig. 5(c) is sent to the display on the display screen of the three primary color pixel unit groups.
  • the present disclosure also provides a pixel rendering method that cooperates with the above display device, and is configured to perform a pixel rendering operation according to image data of an image to be displayed to generate brightness of a primary color displayed by each pixel unit on the display panel. a value, wherein the pixel rendering operation is performed according to the following principle, the brightness of the primary color displayed by each pixel unit on the display panel is the brightness of the same primary color of the image pixel corresponding to the pixel unit on the display panel in the image to be displayed, together with the predetermined The brightness of the same primary color of each of the surrounding image pixels is determined.
  • the pixel rendering method performs a pixel rendering operation according to the following principle, and the luminance value Sab of the primary color S displayed by the pixel unit at (a, b) on the display panel is the image pixel P at the same position on the image to be displayed.
  • the brightness value of the same color S of ab and the brightness values of the same color of the four adjacent image pixels of the position up and down, PS a(b-1) , PS a(b+1) , PS (a-1)b , and PS (a+1)b determines that (a, b) represents the abscissa and the ordinate of the pixel unit in the display panel and the corresponding image pixel in the image to be displayed.
  • the brightness value S ab of the color displayed by any pixel unit on the display panel is determined according to the following formula:
  • C 1, C 2 is a weighting factor, is a real number greater than 0, and C 1> C 2.
  • the method for rendering a pixel based on the input image data, the color of the pixel unit in the pixel unit group of the display screen, and the arrangement thereof according to the embodiment of the present invention is described by taking the three primary color pixel unit group display as an example.
  • the combination of the display screen and the rendering method of this embodiment makes the display device have the advantages of high pixel density, low power consumption, and strong color reproduction capability.

Abstract

显示面板（140）、显示装置（100）和像素渲染方法。显示面板（140）由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示特定原色，一对电极调整所显示的原色的亮度，显示面板（140）中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合。显示面板（140）上每个像素单元显示的原色的亮度是由待显示图像中与显示面板（140）上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。显示面板（140）和显示装置（100）颠覆了彩色显示设备的像素单元构成，能够极大提高像素密度，极大降低能耗，且保持优越的图像显示能力。

Description

显示面板、显示装置和像素渲染方法 技术领域
本发明涉及显示面板和显示装置，可以用作各种手机、平板电脑、笔记本电脑、显示器、电视机等各种设备的彩色显示面板和显示装置，还涉及显示装置的像素渲染方法。
背景技术
现有技术的显示设备上的一个像素单元都由多个不同颜色的子像素单元组成的。
当前广泛使用的各种彩色显示屏，如阴极射线管(Cathode Ray Tube,CRT)显示屏，发光二极管(light-emitting diode,LED)显示屏、有机发光二极管(Organic Light Emitting Diode,OLED)显示屏、液晶显示屏(liquid crystal display,LCD)等，都是由像素单元排列而成的。一个彩色显示屏包含有多个像素单元，如640x480，1024x768，1920x1080个像素单元等。每个像素单元包括两个或三个或更多个不同颜色的子像素单元。其中比较常见的是每个像素单元有三个子像素单元，即红色子像素单元、绿色子像素单元、蓝色子像素单元。三个子像素单元平行排列，形成一个像素单元。
为了防止显示的图像变形，每个像素单元一般都是正方形的，因此，子像素单元是长方形的，其宽高比为3：1，如图6所示。多个像素单元重复排列形成彩色显示屏如图7。当然，这些像素单元有些是自发光的，如LED彩色显示屏、主动矩阵有机发光二极体面板(Active Matrix/Organic Light Emitting Diode,AMOLED)彩色显示屏等，有些自身并不发光而是靠背光来统一提供光源，如被动式有机电激发光二极管(Passive matrix OLED,PMOLED)彩色显示屏、LCD彩色显示屏等。
另外，通常在显示彩色图像时，现有的技术是待显示彩色图像的一个图像像素的三色，由显示设备上的一个像素单元的多个子像素单元共同显示，每个子像素单元具有自身的一对电极，图像像素和显示设备的像素单元之间 通常是一一对应关系。
发明内容
根据本发明的一个方面，提供了一种显示面板，可以由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示特定原色，所述一对电极调整所显示的特定原色的亮度，所述显示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合。
进一步地，显示面板可以由单一像素单元组重复排列组成，像素单元组中的像素单元的数目与原色集合中的原色数目对应，以及像素单元组中的像素单元所显示的原色与原色集合中的原色一一对应。
进一步地，同一行内，对于相邻的像素单元，显示的原色可以不同。
进一步地，同一列内，对于相邻的像素单元，显示的原色可以不同。
进一步地，一个像素单元与其上下左右相邻像素单元显示的原色可以不同。
进一步地，显示面板上每个像素单元显示的原色的亮度可以是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
进一步地，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab可以由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定，其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
进一步地，显示面板上任意像素单元所显示颜色的亮度值Sab可以按照下述公式确定：
Sab＝C1x PSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
C1，C2为权重系数，为大于0的实数，且C1>C2。
进一步地，每个像素单元可以是正方形的。
进一步地，所述预定数目种原色可以为红、蓝、绿三原色。
根据本发明的另一方面，提供了一种显示装置，可以包括：显示面板，由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示一种原色，所述一对电极调整所显示的原色的亮度，所述显 示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合；以及驱动电路，用于向显示面板的每个像素单元发送与该每个像素单元对应的原色的亮度信号。
进一步地，显示装置还可以包括：输入图像接收部件，用于接收输入图像数据，输入图像数据的每个图像像素的数据包括所述预定数目种原色的每个的亮度值；以及像素渲染部件，用于基于输入图像数据执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值。
进一步地，显示面板可以由单一像素单元组重复排列组成，像素单元组中的像素单元的数目与原色集合中的原色数目对应，以及像素单元组中的像素单元所显示的原色与原色集合中的原色一一对应。
进一步地，显示面板的同一行内，对于相邻的像素单元，显示的原色可以不同。
进一步地，显示面板的同一列内，对于相邻的像素单元，显示的原色可以不同。
进一步地，在显示面板中，一个像素单元与其上下左右相邻像素单元显示的原色可以不同。
进一步地，像素渲染部件可以依据下述原则执行像素渲染操作，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定，其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
进一步地，像素渲染部件可以按照下述公式确定显示面板上任意像素单元所显示颜色的亮度值Sab：
Sab＝C1x PSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
其中C1，C2为权重系数，为大于0的实数，且C1>C2。
进一步地，每个像素单元可以是正方形的。
进一步地，所述预定数目种原色为红、蓝、绿三原色。
根据本发明的再一方面，提供了一种与上述显示装置协同工作的像素渲染方法，用于依据待显示图像的图像数据，执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值，其中依据下述原则执行像素渲染操作，显示面板上每个像素单元显示的原色的亮度是由待显示图像中， 与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
进一步地，像素渲染方法中，可以依据下述原则执行像素渲染操作，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定，其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
进一步地，像素渲染方法中，可以按照下述公式确定显示面板上任意像素单元所显示颜色的亮度值Sab：
Sab＝C1x PSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
其中，C1，C2为权重系数，为大于0的实数，且C1>C2。
根据本发明实施例的显示面板和显示装置，颠覆了彩色显示设备的像素单元构成，能够实质上极大提高像素密度，极大降低能耗，且保持优越的图像显示能力。
附图说明
从下面结合附图对本发明实施例的详细描述中，本发明的这些和/或其它方面和优点将变得更加清楚并更容易理解，其中：
图1中的(a)、(b)、(c)示出了根据本发明实施例的、在采用RGB原色集合的情况下、显示面板上的三种像素单元的示例。
图2(a)示例性地示出了在RGB原色机制下的单一像素单元组的一个组成示意图；图2(b)示意性地示出了像素单元组重复排列组成的显示面板的一部分。
图3示意性示出了行间同色排列的显示屏的一部分。
图4示出了根据本发明一个实施例的显示装置100的示意性结构框图。
图5(a)-(d)示出了根据本发明实施例的三原色像素单元组显示屏从图像数据到面板显示的原理图。
图6示出了传统的显示面板中的由RGB子像素单元组成的正方形像素单元的示意图。
图7示出了传统的多个像素单元重复排列形成彩色显示屏示意图。
[根据细则91更正 13.02.2017]　
图8(a)-(c)示出了传统的显示器的从图像数据到面板显示的原理图。
具体实施方式
为了使本领域技术人员更好地理解本发明，下面结合附图和具体实施方式对本发明作进一步详细说明。
首先，说明本文中一些术语的含义。
术语“像素”，又称画素，为图像显示的基本单位，译自英文“pixel”，pix是英语单词picture的常用简写，加上英语单词“元素”element，就得到pixel，故“像素”表示“图像元素”之意。
在本文中，为进行区分，显示屏上的像素称之为“像素单元”，而图像上的像素称之为“图像像素”。
术语“原色”(也称为“基色”)表示图像像素的颜色表示方式，例如RGB中的红色(R)、绿色(G)、蓝色(B)被称为三原色；RGBW中的红色(R)、绿色(G)、蓝色(B)、白色(W)也是原色；青、品红、黄和黑(CMYK色域，印刷行业以及打印机中常见)也是原色。不过本发明并不局限于此，原色的种类和数目可以与上述的不同，可以根据需要设定原色，例如原色系统可以不是通常所述的RGB，而是例如橙色、绿色、紫色，只要根据这样的原色机制能够混合得到任何颜色即可。
后续示例中，将主要以显示面板的像素单元种类为RGB三原色像素单元的情况为例进行描述，不过本发明并不局限于此，像素单元的颜色的种类和数目可以不同。
鉴于现有技术的显示设备上一个像素单元由多个不同颜色的子像素单元所组成的事实，本发明是彩色显示设备发明60多年来的最具颠覆性的发明：一个像素单元中没有子像素单元，每个像素单元仅有一对电极，且仅显示特定原色，所述一对电极调整所显示的原色的亮度。因此，在本公开中，本质上不再存在长方形的子像素单元的概念。相对比地，如前所述，传统的像素单元由子像素单元组成，而且是可以显示任何一种颜色的。
进一步地，待显示的彩色图像中的一个图像像素的三色，由显示设备上的多个像素单元共同显示，两者是一对多关系。相对比地，现有的技术是待显示彩色图像的一个图像像素的三色，由显示设备上的一个对应像素单元的 多个子像素单元共同显示，彩色图像的图像像素与显示设备的像素单元之间是一一对应关系。
根据本发明一个实施例，提供了一种显示面板，由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示特定原色，所述一对电极调整所显示的原色的亮度，所述显示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合。
图1中的(a)、(b)、(c)示出了根据本发明实施例的、在采用RGB原色集合的情况下、显示面板上的三种像素单元的示例。
如图1中的(a)、(b)、(c)所示，与RGB原色机制对应，显示面板上存在三种像素单元，红色像素单元、绿色像素单元和蓝色像素单元。
显示面板由红色像素单元、绿色像素单元和蓝色像素单元排列组成。
在一个优选示例中，在显示面板中，在同一行内，相邻的像素单元显示的原色不同。例如，在一行中，不能出现两个红色像素单元相邻，类似地，不能出现两个绿色像素单元相邻，不能出现两个蓝色像素单元相邻。
在一个优选示例中，在显示面板中，在同一列内，相邻的像素单元显示的原色不同。例如，在一列中，不能出现两个红色像素单元相邻，类似地，不能出现两个绿色像素单元相邻，不能出现两个蓝色像素单元相邻。
在一个优选示例中，像素单元与其上下左右相邻像素单元显示的原色不同。例如，一个红色像素单元的上下左右相邻像素单元不能是红色像素单元，一个绿色像素单元的上下左右相邻像素单元不能是红色像素单元，一个蓝色像素单元的上下左右相邻像素单元不能是红色像素单元。
在一个示例中，显示面板由单一像素单元组重复排列组成，像素单元组中的像素单元的数目与原色集合中的原色数目对应，以及像素单元组中的像素单元所显示的原色与原色集合中的原色一一对应。
得到像素单元组后，像素单元组重复排列得到显示屏。在实际制造显示屏中，通常制造好很大的显示板后，对该大的显示板进行切割，得到需要大小的显示屏。在本文中，“显示屏”和“显示面板”具有相同涵义，可互换使用。
需要说明的是，在本文中，将显示屏或显示面板描述为由像素单元组重复组成，但应该理解，如本领域技术人员公知的，由于显示面板的尺寸和/或生产因素或限制会导致显示面板的一个或多个边缘处的像素单元组不完整。
优选地，为了防止显示的图像变形，每个像素单元是正方形的。
图2(a)示例性地示出了在RGB原色机制下的单一像素单元组的一个组成示意图，其中像素单元组由红色像素单元、绿色像素单元、蓝色像素单元顺次排列组成。
需要说明的是，图2(a)中所示的示例中，像素单元组内包含三个像素单元，且以红绿蓝的方式排序。不过这仅为示例，实际上像素单元组中像素单元的数量、颜色和排序方式可以不同。例如，在RGB原色机制下，三原色像素单元的排列方式可以为蓝红绿、蓝绿红等等。再例如，在N色原色机制下(N为大于等于3的整数)，像素单元组内可以包含N个像素单元，每个像素单元对应于N个原色之一。
实际上，根据本发明的一个实施例的显示屏可以概括为：三原色像素单元组成像素单元组，像素单元组重复形成显示屏。换言之，假设以P1、P2、P3分别表示第一原色、第二原色、第三原色像素单元，像素单元组中三个像素单元以下列方式排列在一行中：
P1P2P3
注意，这里的P1、P2、P3分别为三个原色中的一种，且彼此不同。需要说明的是，虽然后文中通常以P1为红色，P2为绿色和P3为蓝色为例加以说明，但实际上P1可以为绿色或蓝色，相应地P2和P3任一个也可以为其它颜色。优选地，一个像素单元组中包括了所有原色的像素单元，且各原色像素单元的数量在同一个像素单元组内相等，这可以避免显示的图像偏色，保证显示质量。
上面分别以三原色的三元像素单元组为例进行了说明。不过，这仅为示例，实际上像素单元组可以由更多个像素单元组成。显示屏可以有更多种原色或像素单元组内有更多个像素单元。实际上，根据本发明实施例的彩色显示屏的构成只要满足如下条件即可：显示屏由像素单元组重复组成，像素单元组由设置在一行的预定数目个不同原色的像素单元按照不同顺序排列组成，其中至少有二种原色，以及其中任意两个相邻的像素单元的颜色不相同。
图2(b)示意性地示出了像素单元组重复排列组成的显示面板的一部分。
在图2(b)所示的像素单元组重复排列组成显示面板的方式中，在同一行内，相邻的像素单元不同色，以及在同一列内，相邻的像素单元也不同色。
图2(b)所示的像素单元组重复排列方式为行间异色排列，行间异色排列 是指各行之间的相应位置的像素单元的颜色存在不同，例如同一列中的相邻像素单元的颜色不同。
像素单元组重复排列的方式还包括行间同色排列。行间同色排列是指各行之间的相应位置的像素单元的颜色是相同的，即同一列中的像素单元的颜色都相同。
图3示意性示出了行间同色排列的显示屏的一部分；如图所示不同行间的对应像素单元之间颜色是相同的，表现为每列中的像素单元颜色都相同，如第一列的像素单元都是红色，第二列的像素单元都是绿色，等等
作为示例，显示面板可以是液晶显示面板、发射式电致发光显示面板、等离子显示面板、场致发射显示面板、电泳显示面板、闪光显示面板、白炽显示面板、发光二极管显示面板、以及有机发光二极管显示面板等。
此外，原色或基色的数目和种类可以根据需要进行设计，例如除了红色、绿色、蓝色的三原色外，还可以选择红色、绿色、蓝色、白色的四原色，以及还可以包括其他的原色，例如青色、洋红色等等。
根据本发明一个实施例，显示面板上每个像素单元显示的原色的亮度是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
公知地，传统的像素单元由子像素单元组成的彩色屏显示技术如下：待显示彩色图像的一个图像像素的三色，由显示设备上的一个像素单元的多个子像素单元共同显示，图像像素与像素单元之间是一一对应关系。换句话说，传统地，一个图像像素的颜色的显示就是由显示屏上的一个对应像素单元来进行的。
相对比地，根据本公开的一个实施例，待显示的彩色图像中的一个图像像素的三色，由显示设备上的多个像素单元共同显示，彩色图像的图像像素与显示设备的像素单元与是一对多关系。
根据本发明实施例的显示面板，结合驱动电路，能够构成显示装置。在接收到彩色图像后，通过像素渲染技术，来得到像素面板上每个像素单元所显示的原色的亮度值，由驱动电路驱动，由此显示面板能够显示彩色图像。
下面结合显示装置和像素渲染方法来描述如何利用本公开的显示面板来显示彩色图像。
图4示出了根据本发明一个实施例的显示装置100的示意性结构框图。 该结构框图仅示出了与本发明实施例密切相关的部件，该配置并非限制性的，也非穷尽性的，而是还可以包括其他部件。
如图4所示，显示装置100可以包括输入图像接收部件110、像素渲染部件120、驱动部件130和显示面板140。
显示面板140由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示一种原色，所述一对电极调整所显示的原色的亮度，所述显示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合。有关显示面板100的构成、功能等方面可以参考前面的内容，这里不再赘述。
驱动部件130用于向显示面板的每个像素单元发送与该每个像素单元对应的原色的亮度信号。
输入图像接收部件110用于接收输入图像数据，输入图像数据的每个图像像素的数据通常包括预定数目种原色的每个的亮度值。输入图像数据的格式可以为常规的三色“全像素”RGB格式，也可以为其它的sRGB、YCbCr、RGBW格式等等。在输入图像数据的颜色空间与显示面板的颜色空间不同的情况下，输入图像接收部件110可以包括对输入图像数据进行色域映射的功能，例如，如果输入数据为RGBW格式，要在RGB显示面板上进行渲染，则需要进行色域映射操作。当然，这样的色域映射功能可以并入输入数据接收部件110，也可以由独立于映射数据接收部件110的其它部件或者专门的色域映射部件来实现。
像素渲染部件120用于基于输入图像数据执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值。不同于现有显示装置的渲染部件，本发明实施例的像素渲染部件120用于基于输入图像数据(包括经过例如色域映射处理的输入图像数据)执行像素渲染操作，使得一个图像像素的三色值根据渲染计算公式赋予给多个显示像素单元，同时一个显示像素单元也接收多个图像像素的输入，以产生所述显示面板上每个像素单元的亮度值。基于这样的亮度值，驱动部件130向显示面板140的每一个像素单元发送信号，从而实现输入图像数据以令观察者愉悦的方式显示在显示面板上。相对比，现有技术为子像素单元渲染，即将输入图像数据的RGB值，赋予显示面板上的相应像素单元的子像素单元，为其提供亮度值
为正好地传达本发明，突显本发明与现有技术的不同之处，首先简要描 述传统的显示器的子像素单元亮度的确定方法。图8(a)-(c)示出了传统的显示器的从图像数据到面板显示的原理图，其中图8(a)示出了具有多个图像像素的一幅彩色图像的部分输入图像数据；其中Pij表示第i行第j列的图像像素的部分输入图像数据，i和j为大于等于0的整数；图8(b)具体示出图3(a)所示图像中的6个图像像素(P0,P1,P2,P3,P4,P5)的颜色值，分别为(R0,G0,B0),…,(R5,G5,B5)；图8(c)示出了传统RGB显示器直接根据图8(b)的数值显示图像，即显示器上一个像素单元的子像素单元的颜色值直接对应于图像上的对应图像像素中的子图像像素的颜色值。
根据本发明实施例的显示装置100，显示面板上每个像素单元显示的原色的亮度是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
在一个示例中，像素渲染部件120依据下述原则执行像素渲染操作，显示面板140上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定，其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
在一个示例中，像素渲染部件按照下述公式(1)确定显示面板上任意像素单元所显示颜色的亮度值Sab：
Sab＝C1x PSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)    (1)
其中C1,C2为权重系数，为大于0小于1的实数，且C1>C2。
图5(a)-(d)示出了根据本发明实施例的三原色像素单元组显示屏从图像数据到面板显示的原理图，其中图5(a)示出了具有多个图像像素的一幅彩色图像的部分输入图像数据；其中Pij表示第i行第j列的图像像素的部分输入图像数据，i和j为大于等于0的整数；图5(b)具体示出图5(a)所示图像中的18个图像像素P00-P25的颜色值，分别为(R00,G00,B00),…,(R25,G25,B25)；图5(c)示出了输入图像的图像像素Pij及其上下左右四个相邻的图像像素：P(i-1)j、P(i+1)j、Pi(j-1)、Pi(j+1)，其显示屏中相应位置为Sij，表示第i行第j列的像素单元，其颜色S为三原色之一，则该显示像素单元Sij的亮度渲染的计算公式例如为下式(2)：
Sij＝0.5x PSij+0.125x(PSi(j‐1)+PSi(j+1)+PS(i‐1)j+PS(i+1)j)    (2)
显然，该亮度渲染方法有多种，上述公式只是一个示例，另外的例子有：
Sij＝0.6x PSij+0.1x(PSi(j‐1)+PSi(j+1)+PS(i‐1)j+PS(i+1)j)    (3)
上述两个公式中，PSij表示图像像素Pij中颜色为S的分量的值。例如，显示面板上Sji为红色，则PSij表示图像像素Pij中的红色分量的值。因此，本质上，只要当前图像像素P与其周围相邻图像像素的加权为1，使得各显示像素单元的总亮度归一化的方法，都可以作为显示像素单元的渲染方法。图5(d)示出了将图5(c)计算后的值发送到三原色像素单元组显示屏上显示。
由于显示像素单元的亮度值需要通过显示屏的驱动部件130(图4)来驱动显示像素单元，因此，可以不考虑显示像素单元值和图像像素颜色值之间的归一化关系，上述公式(2)和(3)可以分别写为：
Sij＝2x PSij+PSi(j‐1)+PSi(j+1)+PS(i‐1)j+PS(i+1)j    (4)
以及：
Sij＝6x PSij+PSi(j‐1)+PSi(j+1)+PS(i‐1)j+PS(i+1)j    (5)
本公开还提供了一种与上述显示装置协同工作的像素渲染方法，用于依据待显示图像的图像数据，执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值，其中依据下述原则执行像素渲染操作，显示面板上每个像素单元显示的原色的亮度是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
在一个示例中，像素渲染方法依据下述原则执行像素渲染操作，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定,其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
在一个示例中，按照下述公式确定显示面板上任意像素单元所显示颜色的亮度值Sab：
Sab＝C1x PSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
其中，C1,C2为权重系数，为大于0的实数，且C1>C2。
上面以三原色像素单元组显示屏为例，说明了本发明实施例的基于输入图像数据、根据显示屏的像素单元组中像素单元的颜色及其排列方式来渲染像素的方法。该实施例的显示屏和渲染方法的结合使得显示装置具有高像素密度、低能耗、强颜色还原能力的优势。
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说各种组合、次组合、修改和变更都是显而易见的。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (23)

  1. 一种显示面板，由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示特定原色，所述一对电极调整所显示的特定原色的亮度，所述显示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合。
  2. 根据权利要求1的显示面板，显示面板由单一像素单元组重复排列组成，像素单元组中的像素单元的数目与原色集合中的原色数目对应，以及像素单元组中的像素单元所显示的原色与原色集合中的原色一一对应。
  3. 根据权利要求1的显示面板，同一行内，对于相邻的像素单元，显示的原色不同。
  4. 根据权利要求1的显示面板，同一列内，对于相邻的像素单元，显示的原色不同。
  5. 根据权利要求1的显示面板，一个像素单元与其上下左右相邻像素单元显示的原色不同。
  6. 根据权利要求1的显示面板，显示面板上每个像素单元显示的原色的亮度是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
  7. 根据权利要求1的显示面板，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定,
    其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
  8. 根据权利要求7的显示面板，显示面板上任意像素单元所显示颜色的亮度值Sab按照下述公式确定：
    Sab＝C1xPSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
    C1,C2为权重系数，为大于0的实数，且C1>C2。
  9. 根据权利要求7的显示面板，每个像素单元是正方形的。
  10. 根据权利要求1-9任一项的显示面板，所述预定数目种原色为红、 蓝、绿三原色。
  11. 一种显示装置，包括：
    显示面板，由多个像素单元排列组成，其中每个像素单元不具有子像素单元，仅有一对电极，且仅显示一种原色，所述一对电极调整所显示的原色的亮度，所述显示面板中的各个像素单元所显示的原色来自预定数目种原色组成的原色集合；以及
    驱动电路，用于向显示面板的每个像素单元发送与该每个像素单元对应的原色的亮度信号。
  12. 根据权利要求11的显示装置，还包括
    输入图像接收部件，用于接收输入图像数据，输入图像数据的每个图像像素的数据包括所述预定数目种原色的每个的亮度值；以及
    像素渲染部件，用于基于输入图像数据执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值。
  13. 根据权利要求1的显示面板，显示面板由单一像素单元组重复排列组成，像素单元组中的像素单元的数目与原色集合中的原色数目对应，以及像素单元组中的像素单元所显示的原色与原色集合中的原色一一对应。
  14. 根据权利要求11的显示装置，其中显示面板的同一行内，对于相邻的像素单元，显示的原色不同。
  15. 根据权利要求11的显示装置，其中显示面板的同一列内，对于相邻的像素单元，显示的原色不同。
  16. 根据权利要求11的显示装置，其中在显示面板中，一个像素单元与其上下左右相邻像素单元显示的原色不同。
  17. 根据权利要求11的显示装置，像素渲染部件依据下述原则执行像素渲染操作，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定,
    其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
  18. 根据权利要求17的显示装置，像素渲染部件按照下述公式确定显示面板上任意像素单元所显示颜色的亮度值Sab：
    Sab＝C1xPSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
    C1，C2为权重系数，为大于0的实数，且C1>C2。
  19. 根据权利要求11的显示装置，每个像素单元是正方形的。
  20. 根据权利要求11-19任一项的显示装置，所述预定数目种原色为红、蓝、绿三原色。
  21. 一种与权利要求1到20所限定的显示装置协同工作的像素渲染方法，用于依据待显示图像的图像数据，执行像素渲染操作，以产生所述显示面板上每个像素单元所显示的原色的亮度值
    其中依据下述原则执行像素渲染操作，显示面板上每个像素单元显示的原色的亮度是由待显示图像中，与显示面板上的像素单元对应的图像像素的相同原色的亮度、连同预定周围图像像素的每个的相同原色的亮度决定的。
  22. 根据权利要求21的像素渲染方法，
    其中依据下述原则执行像素渲染操作，显示面板上位于(a，b)的像素单元所显示的原色S的亮度值Sab由待显示图像上相同位置的图像像素Pab的相同颜色S的亮度值与该位置上下左右四个相邻图像像素的相同颜色的亮度值PSa(b‐1),PSa(b+1),PS(a‐1)b,和PS(a+1)b决定，
    其中(a，b)表示显示板中的像素单元及待显示图像中对应图像像素的横坐标和纵坐标。
  23. 根据权利要求22的像素渲染方法，其中按照下述公式确定显示面板上任意像素单元所显示颜色的亮度值Sab：
    Sab＝C1xPSab+C2x(PSa(b‐1)+PSa(b+1)+PS(a‐1)b+PS(a+1)b)
    其中，C1,C2为权重系数，为大于0的实数，且C1>C2。
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