CN107978616B - OLED pixel arrangement structure and display method - Google Patents
OLED pixel arrangement structure and display method Download PDFInfo
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Abstract
The invention discloses an OLED pixel arrangement structure and a display method, wherein the OLED pixel arrangement structure comprises the following steps: the pixel unit comprises a plurality of rows and columns of pixel units, wherein a plurality of pixels are arranged in the rows and columns of pixel units; the method comprises the steps that any one of the plurality of pixels comprises three sub-pixels, the three sub-pixels are in parallelogram shapes, and the arrangement directions of the three sub-pixels are consistent; for any sub-pixel in the three sub-pixels, at least one group of opposite sides form an included angle with the horizontal direction or the vertical direction; the three sub-pixels of any one of the plurality of pixels are arranged in one or more pixel units, one pixel unit or the plurality of pixel units are divided into three rectangular areas which are sequentially arranged, the three sub-pixels are sequentially arranged in the three rectangular areas, and the connecting lines of the centers of gravity of the three sub-pixels are not on the same straight line. When displaying an arc image, the interlaced pixels can fit into an oblique climb, which can weaken the sawtooth display.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to an OLED pixel arrangement structure and a display method.
Background
When the OLED display device displays some display contents with curved surfaces or circular lines, such as the tracks of clock hands, some pixels on the display panel may display the circular lines in a form of fine line segments in an interlaced manner. In a display panel, in a common pixel arrangement manner of an OLED display device, (which may also be referred to as an RGB light emitting shape) referring to fig. 1 to fig. 3, a shape of a sub-pixel R, a sub-pixel G, and a sub-pixel B is generally rectangular, and the sub-pixel R, the sub-pixel G, and the sub-pixel B are generally horizontally disposed or vertically disposed, and an exemplary pixel arrangement manner in fig. 1 is 2B in 1, the sub-pixel R, the sub-pixel G, and the sub-pixel B are arranged in one pixel unit, the sub-pixel R and the sub-pixel G are both horizontally disposed, and the sub-pixel B is vertically disposed. The pixel arrangement mode illustrated in fig. 2 is Real Delta, the sub-pixel R, the sub-pixel G, and the sub-pixel B are arranged in one pixel unit, and the sub-pixel R, the sub-pixel G, and the sub-pixel B are horizontally arranged. The pixel arrangement illustrated in fig. 3 is Rendering, and two horizontal pixel units are arranged in 3 pixel units.
In any of the above pixel arrangement manners, when displaying a small segment of arc-shaped image, the pixel units in adjacent rows that are staggered with each other need to be driven to emit light, so as to form a light-emitting oblique line, and the staggered direction of the pixel units for displaying the arc-shaped image may be inclined upwards or inclined downwards. Therefore, several pixel arrangement modes in the prior art have poor display effect when displaying circular lines, and arc-shaped images seen by human eyes are saw-toothed along the arc direction, and if the circular lines are locally enlarged, the display problem is called as display sawtooth problem, which is similar to mosaic.
In summary, the conventional pixel arrangement method has the problem of display jaggies when the display device displays a circular line.
Disclosure of Invention
The invention provides an OLED pixel arrangement structure and a display method, which are used for solving the problem of display saw teeth of display equipment in the prior art when circular lines are displayed.
In a first aspect, an embodiment of the present invention provides an OLED pixel arrangement structure, including:
the pixel unit comprises a plurality of rows and columns of pixel units, wherein a plurality of pixels are arranged in the rows and columns of pixel units;
the method comprises the steps that any one of the plurality of pixels comprises three sub-pixels, the three sub-pixels are in parallelogram shapes, and the arrangement directions of the three sub-pixels are consistent; for any sub-pixel in the three sub-pixels, at least one group of opposite sides form an included angle with the horizontal direction or the vertical direction;
the three sub-pixels of any one of the plurality of pixels are arranged in one or more pixel units, one pixel unit or the plurality of pixel units are divided into three rectangular areas which are sequentially arranged, the three sub-pixels are sequentially arranged in the three rectangular areas, and the connecting lines of the centers of gravity of the three sub-pixels are not on the same straight line.
Preferably, the three sub-pixels of any one of the plurality of pixels are arranged in the one pixel unit, and the one pixel unit is trisected into the three rectangular areas along a horizontal direction or a vertical direction;
the three rectangular areas are sequentially a first area, a second area and a third area, the diagonal line of the rectangular area formed by the first area and the second area is a first angle line, the diagonal line of the rectangular area formed by the second area and the third area is a second angle line, and the first angle line is intersected with the second angle line and has an intersection point; the center of gravity of one of the three sub-pixels is located at the intersection point, and the centers of gravity of the other two sub-pixels are located on the first angle line and the second angle line, respectively.
Preferably, the diagonal lines of any three sub-pixels are arranged horizontally or vertically.
Preferably, adjacent edges of any one of the three sub-pixels are respectively parallel to the first angle line and the second angle line, and a vertex angle of any one of the three sub-pixels is equal to an included angle between the first angle line and the second angle line.
Preferably, the first and second angle lines have an included angle of 2 × Arc Tan (2/3).
Preferably, the three sub-pixels of any one of the plurality of pixels are arranged in 3/2 pixel units, and the 3/2 pixel units are trisected into the three rectangular areas along the horizontal direction or the vertical direction;
for every two adjacent pixels arranged in the same-row pixel unit or the same-column pixel unit, arranging the two adjacent pixels in three adjacent pixel units, wherein the three pixel units are divided into six rectangular areas along the horizontal direction or the vertical direction; each pixel of every two adjacent pixels comprises a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel of every two adjacent pixels are sequentially arranged in the six rectangular areas;
if the six rectangular areas are sequentially a first area, a second area, a third area, a fourth area, a fifth area, a sixth area, a;
the centers of gravity of the first sub-pixel, the second sub-pixel and the third sub-pixel of every two adjacent pixels are respectively and sequentially located: on the first angle line, the first angle line with the nodical department of second angle line, the second angle line with the nodical department of third angle line, the third angle line with the nodical department of four angle lines, the fourth angle line with the nodical department of five angle lines, on the fifth angle line.
Preferably, the diagonal lines of any three sub-pixels are arranged horizontally or vertically.
Preferably, any one of the three sub-pixels is square, an included angle between the first angle line and the second angle line is 2 × Arc Tan (1), an included angle between the second angle line and the third angle line is 2 × Arc Tan (1), an included angle between the third angle line and the fourth angle line is 2 × Arc Tan (1), and an included angle between the fourth angle line and the fifth angle line is 2 × Arc Tan (1).
In the above embodiment, for the three sub-pixels of any pixel, the three sub-pixels are all in the shape of a parallelogram, and the three sub-pixels are arranged in the same direction; the three sub-pixels are arranged in one or more pixel units, the pixel unit or the pixel units are divided into three rectangular areas which are sequentially arranged, and the three sub-pixels are sequentially arranged in the three rectangular areas. According to the pixel arrangement mode, when the pixels of the adjacent rows display the arc-shaped image, because the shape of each sub-pixel of the staggered pixels is a parallelogram and the arrangement direction of each sub-pixel is consistent, two staggered line segments formed by the staggered pixels can be fitted into an inclined climbing slope, and compared with the prior art, the sawtooth display phenomenon can be weakened.
In a second aspect, an embodiment of the present invention provides an OLED pixel display method, applied to any OLED pixel structure in the foregoing embodiments, including:
determining at least two adjacent pixels for displaying an arc-shaped image, wherein the at least two adjacent pixels comprise two adjacent pixels with staggered positions, and the display contents of the two adjacent pixels with staggered positions form a staggered line segment;
determining a fitting white line of the staggered line segment, wherein the fitting white line of the staggered line segment is two fitting curves obtained by performing straight line fitting along the contour edges of the sub-pixels of the two adjacent pixels staggered at the positions, wherein any one of the two fitting curves comprises two horizontal line segments and a gradient line segment connected between the two horizontal line segments, and the sub-pixels positioned in the two fitting curves comprise the sub-pixels of the two adjacent pixels and further comprise the sub-pixels which are mixed with the sub-pixels of the two adjacent pixels into white light nearby;
and increasing the brightness of partial sub-pixels in the sub-pixels positioned in the fitting white line of the staggered line segment so as to enable the sub-pixels positioned in the fitting white line of the staggered line segment to be mixed into white light.
Further, if the adjacent first pixel and second pixel form the interlaced line segment, the sub-pixel in the fitting white line of the interlaced line segment includes one or two sub-pixels of a third pixel in addition to the sub-pixels of the first pixel and the second pixel, and the third pixel is adjacent to the first pixel and the second pixel; the step of boosting the luminance of a portion of the sub-pixels located within the fitted white line of the interlaced line segment comprises:
and increasing the brightness of the sub-pixel which is mixed with one or two sub-pixels of the third pixel nearby and is in white light in the sub-pixels of the first pixel and the second pixel.
Wherein the number of the third pixels is one or two. In the pixel display method provided by the embodiment of the invention, the brightness of the sub-pixels in the fitting white line of the staggered line segment is improved, so that the sub-pixels in the fitting white line of the staggered line segment can be mixed into white light, the edge line of the staggered line segment is smooth and clear, and the function of eliminating the saw teeth is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIGS. 1 to 3 are schematic structural diagrams of a sawtooth display generated by a conventional pixel arrangement in the prior art;
fig. 4a to fig. 4g are schematic partial structural diagrams of a pixel arrangement according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a partial structure of a pixel arrangement according to an embodiment of the present invention;
fig. 6a to fig. 6b are schematic partial structural diagrams of an arrangement of pixels according to an embodiment of the present invention;
fig. 7a to 7e are schematic partial structural diagrams of an arrangement of pixels according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and effects of the present invention more apparent, the following description of the preferred embodiments of the present invention with reference to the accompanying drawings is provided, and it should be understood that the preferred embodiments described herein are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In order to reduce the display sawtooth problem, the shape of the sub-pixel of each pixel in the rows and columns of pixels is the same, and the arrangement direction is the same.
Specifically, in the embodiment of the present invention, the three sub-pixels of each pixel are all in the shape of a parallelogram, and the placement directions of the three sub-pixels are the same; the arrangement direction of the three sub-pixels, i.e., the sub-pixel R, the sub-pixel G, and the sub-pixel B, is based on the arrangement direction of the long axis or the short axis diagonal of the parallelogram, for example, the long axis diagonal of the parallelogram of the sub-pixel is vertically arranged or horizontally arranged, or the long axis diagonal of the parallelogram of the sub-pixel forms a certain angle with the horizontal direction, so that at least one set of opposite sides of each sub-pixel forms an angle with the horizontal direction, or at least one set of opposite sides forms an angle with the vertical direction, and one set of opposite sides or two sets of opposite sides of each parallelogram sub-pixel are obliquely arranged along the pixel row or the pixel column.
In the embodiment of the invention, three sub-pixels of each pixel are arranged in one pixel unit, the pixel unit is divided into three rectangular areas which are sequentially arranged, the three sub-pixels of each pixel are sequentially arranged in the three rectangular areas, and the gravity center connecting lines of the three sub-pixels of each pixel are not on the same straight line.
In the embodiment of the invention, the three sub-pixels of each pixel are arranged in the plurality of pixel units, the plurality of pixel units are divided into three rectangular areas which are sequentially arranged, and the three sub-pixels of each pixel are sequentially arranged in the three rectangular areas.
In a preferred embodiment, the three sub-pixels of each pixel are arranged in trisections along the horizontal or vertical direction, as shown in fig. 4 a. The shape of each of the sub-pixels R, G and B is parallelogram, and the sub-pixels R, G and B are arranged in a square pixel unit according to the same arrangement mode.
As shown in fig. 4b, in the embodiment of the present invention, the method for arranging the sub-pixels in a trisection manner along the horizontal direction specifically includes the following steps:
the pixel unit is divided into a first rectangular area, a second rectangular area and a third rectangular area in a trisection mode along the horizontal direction, the diagonal line of the rectangular area formed by the first rectangular area and the second rectangular area is a first angle line, the diagonal line of the rectangular area formed by the second rectangular area and the third rectangular area is a second angle line, the first angle line is intersected with the second angle line, a sub-pixel R, a sub-pixel B and a sub-pixel G are sequentially arranged in the first rectangular area, the second rectangular area and the third rectangular area, the gravity center of the sub-pixel R is located on the first angle line, the gravity center of the sub-pixel G is located on the second angle line, and the gravity center of the sub-pixel B is located at the intersection point of the first angle line and the second angle line.
Before the sub-pixels R, G and B are placed, the placing directions of the sub-pixels R, G and B are predetermined, and because each sub-pixel has the same shape and is a parallelogram, the placing directions of the sub-pixels R, G and B can be set by taking the placing direction of a long-axis diagonal as a reference. The major diagonal lines of the sub-pixels R, G and B shown in fig. 4a to 4G are all vertically arranged, and the major diagonal lines of the sub-pixels R, G and B shown in fig. 5 are all horizontally arranged.
The included angle between the first angle line and the second angle line is used as the placing angle of the sub-pixel R, the sub-pixel G and the sub-pixel B in one pixel unit. If the sub-pixels are arranged in a trisected manner, and the major axis diagonal of each sub-pixel R, G, B is horizontally arranged, or the major axis diagonal is vertically arranged, and the adjacent sides of each sub-pixel are respectively parallel to the first angle line and the second angle line, then according to the geometrical relationship in fig. 4B, the placement angle of each sub-pixel is equal to the acute vertex angle of each sub-pixel parallelogram (taking sub-pixel B as an example, the center of gravity is located at the intersection of the first diagonal line and the second diagonal line, and the major axis diagonal of sub-pixel B is vertically arranged, so the vertex angle of sub-pixel B is equal to the included angle of the first diagonal line and the second diagonal line), if the included angle between the first angle line and the second angle line is α, α is 2 × Arc Tan (2/3), because, if the side length of the pixel unit is a, then the pixel cell is trisected, the first diagonal is at Arc Tan (2/3), and the second diagonal is at Arc Tan (2/3).
As shown in fig. 4c, according to the above Real Delta pixel arrangement manner, when the pixels in the adjacent rows display the arc-shaped image, the gradient line segment of the interlaced line segment formed by the interlaced pixels is an inclined ramp, and the inclination angle of the inclined ramp is half of the vertex angle of the sub-pixel. The jaggy display is preferably weakened compared to the prior art. If the display is performed according to a normal color mixing scheme, for example, the display brightness of each sub-pixel of the interlaced segment is the same, the jaggy still exists, but changes according to the shape of the sub-pixel.
On the basis of weakening the sawtooth display, if a certain display mode is added, the elimination of the sawtooth can play a better role. For example, the color mixing scheme of the sub-pixel R, the sub-pixel G and the sub-pixel B is improved, so that the sawtooth display phenomenon can be eliminated, and the edge of the displayed arc-shaped image is smoother and clearer.
The display method for the pixel arrangement provided by the embodiment of the invention specifically comprises the following steps: firstly, determining at least two adjacent pixels for displaying an arc-shaped image, wherein the at least two adjacent pixels comprise two adjacent pixels with staggered positions, and referring to the pixels arranged in the pixel unit 12 and the pixel unit 21 in fig. 4e, the display contents of the two adjacent pixels with staggered positions form a staggered line segment; then determining a fitting white line of the staggered line segment, wherein the fitting white line of the staggered line segment is two fitting curves obtained by performing straight line fitting along the contour edges of the sub-pixels of the two adjacent pixels staggered at the position, and referring to fig. 4d, any one of the two fitting curves comprises two horizontal line segments and a gradient line segment connected between the two horizontal line segments; the sub-pixels located in the two fitted curves include the sub-pixels of the two adjacent pixels, and further include the sub-pixels which mix the sub-pixels of the two adjacent pixels into white light nearby, referring to the sub-pixel R of the pixel unit 22 in fig. 4 e; and finally, the brightness of partial sub-pixels positioned in the fitting white line of the staggered line segment is improved, so that the sub-pixels positioned in the fitting white line of the staggered line segment are mixed into white light.
With reference to the preferred pixel arrangement manner in the above embodiment, if the adjacent first pixel and second pixel form an interlaced line segment, where the first pixel and the second pixel respectively include a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first pixel and the second pixel are respectively disposed in the first pixel unit and the second pixel unit; the first pixel unit and the second pixel unit are provided with a first sub-pixel, a second sub-pixel and a third sub-pixel, the sub-pixels in the fitting white line of the staggered line segment comprise sub-pixels in the first pixel unit and the second pixel unit and also comprise one sub-pixel of the third pixel unit, the third pixel unit is adjacent to the first pixel unit and the second pixel unit, and then the brightness of part of sub-pixels in the fitting white line of the staggered line segment is improved, and the method comprises the following steps: and the brightness of the sub-pixel which is mixed with one sub-pixel of the third pixel unit nearby in the first pixel unit and the second pixel unit is improved.
As shown in fig. 4d, the fitting white line of the staggered line segment refers to two fitting curves when the sub-pixels in the staggered line segment display white light. The inclination of the fitting white line of the staggered line segment is consistent with the inclination of the staggered line segment, the inclination of the staggered line segment is related to the shape and the placing direction of each sub-pixel in the staggered line segment, if the shape and the placing direction of each sub-pixel are the same, the inclination of the staggered line segment is consistent with the inclination of the parallelogram side of each sub-pixel, ideally, if the sub-pixels of the fitting white line of the staggered line segment are exactly the sub-pixels forming the staggered line segment, and the sub-pixels forming the staggered line segment can be mixed into white light, so that the saw teeth can be eliminated. However, the fitted white line of the interlaced line segment includes a part of sub-pixels of the adjacent pixel units in addition to the sub-pixels constituting the interlaced line segment, and then the part of sub-pixels of the adjacent pixel units cannot display white light alone, and therefore, the jaggy cannot be eliminated. To eliminate the jaggies, it is necessary to make the sub-pixels located in the fitting white line of the crossed line segments cooperate to display white light.
Referring to fig. 4e, the interlaced line segment is composed of two pixels in the pixel unit 12 and the pixel unit 21, each pixel includes three sub-pixels, i.e., R, G, B, and the pixels in the fitted white line of the interlaced line segment include sub-pixels in the pixel unit 22 in addition to the sub-pixels in the pixel unit 12 and the pixel unit 21, and the sub-pixels in the fitted white line of the interlaced line segment have 3 sub-pixels R (R12, R21, R22), 2 sub-pixels G (G12, G21), and 2 sub-pixels B (B12, B21) in total. When the normal luminance of the sub-pixel R, the sub-pixel G, and the sub-pixel B is 1, that is, lum (R) 1, lum (G) 1, and lum (B) 1, the mixture is lum (W) 1, and W is White and White light. If the sub-pixels in the cross line fitting white line are to be mixed into white light, the three sub-pixels in the pixel unit 12 and the pixel unit 21 are mixed into white light, and besides, the sub-pixel G21 is used by the pixel unit 12 and the pixel unit 22 at the same time to be mixed into white light; the sub-pixel G21 is used by both the pixel cell 21 and the pixel cell 22 to blend in white light; therefore, the sub-pixels in the cross line segment fitting white line can be mixed into white light only by improving the brightness of the sub-pixel G21 and the sub-pixel G21. If the luminance Lum (R22) of the sub-pixel R22 is 1, the corresponding matrix equation is as follows:
referring to fig. 4f, a fitting white line of the interlaced line segment passes through three pixel units (pixel unit 11, pixel unit 21, pixel unit 22), and the sub-pixels in the fitting white line of the interlaced line segment have 2 sub-pixels R (R11, R22), 3 sub-pixels G (G11, G22, G21), and 2 sub-pixels B (B11, B22). If the sub-pixels in the cross line fitting white line are to be mixed into white light, the sub-pixel B11 is used by the pixel unit 11 and the pixel unit 21, and the sub-pixel R22 is used by the pixel unit 21 and the pixel unit 22, so that the luminance of the sub-pixel B11 and the sub-pixel R22 is improved, and the sub-pixels in the cross line fitting white line can be mixed into white light. If the luminance Lum (G21) of the sub-pixel G21 is 1, the corresponding matrix equation is as follows:
in the above embodiment, the pixel shape and the pixel placement position of the parallelogram with a certain angle are set, and a special display mode is combined, so that the sawtooth in the conventional OLED-PDL display is eliminated.
It should be noted that the positions of the sub-pixels R, G and B in fig. 4a to 4G can be interchanged, and the embodiments in which the positions of the sub-pixels R, G and B are interchanged are similar to the above-mentioned embodiments, and will not be described again here.
Fig. 6a and 6B show a pixel arrangement of 2B in 1, and compared with fig. 4a to 4g and fig. 5, each pixel unit is divided into three equal parts along the vertical direction, and the arrangement of the sub-pixels of each pixel unit is the same as the previous embodiment, and will not be described again here. Wherein the major axis diagonal of each sub-pixel in fig. 6a is arranged horizontally and the major axis diagonal of each sub-pixel in fig. 6b is arranged vertically. 2B in 1, when displaying an arc-shaped image, the color mixing scheme of the pixels in the local area is similar to the above embodiment, and will not be described here.
The embodiment of the invention also provides a preferable Rendering pixel arrangement mode, and a reference is made to fig. 7 a. For any row of pixels, every two adjacent pixels are arranged in every three pixel units, wherein 3/2 pixel units are trisected and then the arrangement of three sub-pixels of the first pixel is carried out, and 3/2 pixel units are trisected and then the arrangement of three sub-pixels of the second pixel is carried out. The 3/2 pixel units can be trisected along the horizontal direction or the vertical direction, and in the following, taking trisection along the horizontal direction as an example, for every two adjacent pixels arranged on the same row of pixel units or the same column of pixel units, the manner of arranging the two adjacent pixels on the three adjacent pixel units is as follows:
as shown in fig. 7b, each pixel unit is divided into two, every three adjacent pixel units are divided into six equal parts from a first rectangular area to a sixth rectangular area, a diagonal line of the rectangular area formed by the first rectangular area and the second rectangular area is a first angle line, a diagonal line of the rectangular area formed by the second rectangular area and the third rectangular area is a second angle line, the first angle line intersects with the second angle line, a diagonal line of the rectangular area formed by the third rectangular area and the fourth rectangular area is a third angle line, the third angle line intersects with the second angle line, a diagonal line of the rectangular area formed by the fourth rectangular area and the fifth rectangular area is a fourth angle line, the fourth angle line intersects with the third angle line, a diagonal line of the rectangular area formed by the fifth rectangular area and the sixth rectangular area is a fifth angle line, and the fourth angle line intersects with the fifth angle line.
Sequentially arranging the sub-pixel R, the sub-pixel B and the sub-pixel G of the first pixel in a first rectangular area, a second rectangular area and a third rectangular area, sequentially arranging the sub-pixel R, the sub-pixel B and the sub-pixel G of the second pixel in a fourth rectangular area, a fifth rectangular area and a sixth rectangular area, and for the first pixel: the gravity center of the sub-pixel R is positioned on the first angle line, the gravity center of the sub-pixel B is positioned at the intersection point of the first angle line and the second angle line, and the gravity center of the sub-pixel G is positioned at the intersection point of the second angle line and the third angle line; for the second pixel: the gravity center of the sub-pixel R is located at the intersection point of the third angle line and the fourth angle line, the gravity center of the sub-pixel B is located at the intersection point of the fourth angle line and the fifth angle line, and the gravity center of the sub-pixel G is located on the fifth angle line.
Before the sub-pixels R, G and B of each pixel are placed, the placing directions of the sub-pixels R, G and B are determined in advance, and the shape and the placing direction of each sub-pixel are the same, so that the shape and the placing direction of each sub-pixel can be determined according to actual conditions.
Preferably, the shape of the sub-pixels of each pixel is square, the placing direction of each sub-pixel is set horizontally for the diagonal of the sub-pixel, or the diagonal of the sub-pixel is set vertically, according to the geometric relationship, the included angle between the first angle line and the second angle line is 2 × Arc Tan (1), the included angle between the second angle line and the third angle line is 2 × Arc Tan (1), the included angle between the third angle line and the fourth angle line is 2 × Arc Tan (1), and the included angle between the fourth angle line and the fifth angle line is 2 × Arc Tan (1), that is, the included angle between each two intersecting angle lines is 90 °.
According to the above preferred pixel arrangement, when the pixels in adjacent rows display an arc-shaped image, two segments of interlaced line segments formed by the interlaced pixels are an inclined slope, and the inclination angle of the inclined slope is half of the vertex angle of the sub-pixel, i.e. 45 °. The jaggy display is preferably weakened compared to the prior art.
On the basis of weakening the sawtooth display, if a certain display mode is added, the elimination of the sawtooth can play a better role. In the preferred pixel arrangement, the fitting white lines of the staggered line segments at different positions have different sub-pixels. Several different positions of the interlaced segments are illustrated below, along with a dithering scheme adapted thereto to eliminate aliasing of the interlaced segments.
If the sawtooth is eliminated, the sub-pixels in the fitting white line area of the crossed line segments are matched to display white light.
The display method for the pixel arrangement provided by the embodiment of the invention specifically comprises the following steps: firstly, determining an interlaced line segment formed by at least two adjacent pixels for displaying an arc-shaped image; then determining a fitting white line of the staggered line segments; and finally, the brightness of partial sub-pixels in the fitting white line of the staggered line segment is improved, so that the sub-pixels in the fitting white line of the staggered line segment are mixed into white light. If the first pixel and the second pixel form an interlaced line segment; the sub-pixels in the fitting white line of the staggered line segment include a sub-pixel of a third pixel and a sub-pixel of a fourth pixel besides the sub-pixels in the first pixel and the second pixel, the third pixel is adjacent to the first pixel and the second pixel, and a fourth pixel unit is adjacent to the first pixel and the second pixel, so that the brightness of partial sub-pixels in the fitting white line of the staggered line segment is improved, and the method comprises the following steps: the brightness of the sub-pixel of the first pixel and the second pixel, which is mixed with one sub-pixel of the third pixel nearby, is increased, and the brightness of the sub-pixel of the first pixel and the second pixel, which is mixed with one sub-pixel of the fourth pixel nearby, is increased.
For example, for the interlaced line segment at the position shown in fig. 7c, the interlaced line segment fitting white line region includes the sub-pixels of the first pixel 71 and the second pixel 72, and also includes the sub-pixels B and the sub-pixels R of the adjacent pixels, when the sub-pixels in the interlaced line segment fitting white line region cooperate to display white light, the three sub-pixels in the first pixel 71 and the second pixel 72 are mixed into white light, and in addition, the sub-pixel G of the second pixel 72 and the sub-pixels B and R of the adjacent pixels cooperate to display white light, as shown in the dashed line region in fig. 7c, so that the luminance of the sub-pixel G of the second pixel 72 is increased to 2 times of the standard luminance. If the normal luminance Lum (R, G, B) of the sub-pixel is 1, the luminance of the sub-pixel G of the second pixel 72 in the interlaced line fitting white line region is Lum (B) 2, and the luminance of the other sub-pixels in the interlaced line fitting white line region is the standard luminance.
For the interlaced line segment at the position shown in fig. 7d, which is composed of the first pixel 73 and the second pixel 74, the interlaced line segment fitting white line region includes the sub-pixels of the first pixel 73 and the second pixel 74, and also includes the sub-pixel G and the sub-pixel B of the adjacent pixel, when the sub-pixels in the interlaced line segment fitting white line region cooperate to display white light, the sub-pixels in the first pixel 73 and the second pixel 74 are mixed into white light, besides, referring to the dashed line region in fig. 7d, it is also necessary to mix the sub-pixel R and the sub-pixel B of the first pixel 73 at the upper right corner of the interlaced line segment fitting white line region and the sub-pixel G of the adjacent pixel into white light, and the sub-pixel B and the sub-pixel G of the second pixel 74 at the lower left corner of the interlaced line segment fitting white line region and the sub-pixel R of the adjacent pixel into white light, therefore, it is necessary to increase the luminance of the sub-pixel R and the sub-pixel B of the first pixel 73 to 2 times of the standard luminance, meanwhile, the luminances of the sub-pixel B and the sub-pixel G of the second pixel 74 are raised to 2 times of the standard luminance, and if the normal luminance Lum (R, G, B) of each sub-pixel is 1, the luminances of the sub-pixel R and the sub-pixel B of the first pixel 73 in the upper right corner of the interlaced line segment fitting white line region are Lum (R) 2 and Lum (B) 2, respectively, and the luminances of the sub-pixel B and the sub-pixel G of the second pixel 74 in the lower left corner of the interlaced line segment fitting white line region are Lum (B) 2 and Lum (G) 2, respectively.
For the interlaced line segment at the position shown in fig. 7e, which is composed of the first pixel 75 and the second pixel 76, the interlaced line segment fitting white line region includes the sub-pixels G and B of the adjacent pixels in addition to the sub-pixels of the first pixel 75 and the second pixel 76, the sub-pixels located in the interlaced line segment fitting white line region cooperate to display white light, besides, referring to the dashed line area in fig. 7e, the sub-pixel R of the second pixel 76 at the lower right corner of the interlaced line segment fitting white line area needs to be controlled to be mixed with the sub-pixels G and B of the adjacent pixels to form white light, therefore, the luminance of the sub-pixel R of the second pixel 76 needs to be increased to 2 times of the standard luminance, and if the normal luminance Lum (R, G, B) of the sub-pixel is 1, the sub-pixel R of the second pixel 76 at the lower right corner of the interlaced segment fitting white line region is lum (2).
In the above embodiment, the pixel shape and the pixel placement position of the parallelogram with a certain angle are set, and a special display mode is combined, so that the traditional OLED-PDL display sawtooth is eliminated, the OLED image quality is favorably improved, and better experience can be brought to customers.
It should be noted that the positions of the sub-pixels R, G and B in fig. 7a can be interchanged, and the embodiments of interchanging the positions of the sub-pixels R, G and B will not be described herein.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An OLED pixel arrangement structure, comprising: the pixel unit comprises a plurality of rows and columns of pixel units, wherein a plurality of pixels are arranged in the rows and columns of pixel units;
the method comprises the steps that any one of the plurality of pixels comprises three sub-pixels, the three sub-pixels are in parallelogram shapes, and the arrangement directions of the three sub-pixels are consistent; for any sub-pixel in the three sub-pixels, at least one group of opposite sides form an included angle with the horizontal direction or the vertical direction;
the three sub-pixels for any of the plurality of pixels are arranged within 3/2 pixel cells, the 3/2 pixel cells being trisected into three rectangular regions in a horizontal or vertical direction;
for every two adjacent pixels arranged in the same-row pixel unit or the same-column pixel unit, arranging the two adjacent pixels in three adjacent pixel units, wherein the three pixel units are divided into six rectangular areas along the horizontal direction or the vertical direction; each pixel of every two adjacent pixels comprises a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel of every two adjacent pixels are sequentially arranged in the six rectangular areas;
if the six rectangular areas are sequentially a first area, a second area, a third area, a fourth area, a fifth area, a sixth area, a;
the centers of gravity of the first sub-pixel, the second sub-pixel and the third sub-pixel of every two adjacent pixels are respectively and sequentially located: on the first angle line, the first angle line with the nodical department of second angle line, the second angle line with the nodical department of third angle line, the third angle line with the nodical department of four angle lines, the fourth angle line with the nodical department of five angle lines, on the fifth angle line.
2. The OLED pixel arrangement structure of claim 1,
the diagonal lines of any three sub-pixels are horizontally arranged or vertically arranged.
3. The OLED pixel arrangement according to claim 2, wherein any one of the three sub-pixels is square, the first angle line and the second angle line have an included angle of 2 × Arc Tan (1), the second angle line and the third angle line have an included angle of 2 × Arc Tan (1), the third angle line and the fourth angle line have an included angle of 2 × Arc Tan (1), and the fourth angle line and the fifth angle line have an included angle of 2 × Arc Tan (1).
4. An OLED pixel display method applied to the pixel arrangement structure according to any one of claims 1 to 3, comprising:
determining at least two adjacent pixels for displaying an arc-shaped image, wherein the at least two adjacent pixels comprise two adjacent pixels with staggered positions, and the display contents of the two adjacent pixels with staggered positions form a staggered line segment;
determining a fitting white line of the staggered line segment, wherein the fitting white line of the staggered line segment is two fitting curves obtained by performing straight line fitting along the contour edges of the sub-pixels of the two adjacent pixels staggered at the positions, wherein any one of the two fitting curves comprises two horizontal line segments and a gradient line segment connected between the two horizontal line segments, and the sub-pixels positioned in the two fitting curves comprise the sub-pixels of the two adjacent pixels and further comprise the sub-pixels which are mixed with the sub-pixels of the two adjacent pixels into white light nearby;
and increasing the brightness of partial sub-pixels in the sub-pixels positioned in the fitting white line of the staggered line segment so as to enable the sub-pixels positioned in the fitting white line of the staggered line segment to be mixed into white light.
5. The OLED pixel display method according to claim 4, wherein if the adjacent first pixel and second pixel form the interlaced line segment, the sub-pixel in the fitting white line of the interlaced line segment includes one or two sub-pixels of a third pixel in addition to the sub-pixels of the first pixel and the second pixel, the third pixel is adjacent to the first pixel and the second pixel; the step of boosting the luminance of a portion of the sub-pixels located within the fitted white line of the interlaced line segment comprises:
and increasing the brightness of the sub-pixel which is mixed with one or two sub-pixels of the third pixel nearby and is in white light in the sub-pixels of the first pixel and the second pixel.
6. The OLED pixel display method of claim 5, wherein the number of the third pixels is one or two.
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Address after: 1568 Jiugong Road, Jinshan Industrial Zone, Shanghai, 201506 Applicant after: Shanghai Hehui optoelectronic Co., Ltd Address before: 1568 Jiugong Road, Jinshan Industrial Zone, Shanghai, 201506 Applicant before: EverDisplay Optronics (Shanghai) Ltd. |
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