CN111223902A - Pixel structure, mask and display device - Google Patents
Pixel structure, mask and display device Download PDFInfo
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Abstract
The invention discloses a pixel structure, a mask and a display device, wherein the pixel structure comprises a plurality of repeating units, the repeating units form a plurality of pixel groups, each pixel group comprises two rows of repeating units which are adjacently arranged along a first direction, in at least part of the pixel groups, a virtual center connecting line of a first sub-pixel in the ith row of sub-pixels of the first row of repeating units and a corresponding first sub-pixel in the ith row of sub-pixels of the second row of repeating units is a set connecting line, and the included angle between the set connecting line and the first direction is 45 degrees; and the other rows of sub-pixels of the first row of repeating units and the second row of repeating units are provided with first sub-pixels positioned on a set connecting line, and i is equal to 1 or i is equal to 2. Through the technical scheme of the invention, the display device can accurately display 45-degree font oblique lines in the area where the pixel group is located, and the display effect of the display device when displaying the font is optimized.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a pixel structure, a mask and a display device.
Background
The display device can display fonts for a user to read, most oblique lines in the fonts are 45 degrees, but the overall direction of an oblique connecting line formed by sub-pixels used for evaluating the highest brightness of the centers of the pixels in the display device is usually deviated from 45 degrees of the font oblique lines by a certain angle, so that the display device cannot accurately display the 45 degrees of the font oblique lines when displaying the fonts, and the display effect of the display device when displaying the fonts is influenced.
Disclosure of Invention
In view of the above, the present invention provides a pixel structure, a mask and a display device, so that in the area where the pixel group is located, the display device can accurately display 45 ° font oblique lines, and the display effect of the display device when displaying, for example, fonts is optimized.
In a first aspect, an embodiment of the present invention provides a pixel structure, including:
the pixel array comprises a plurality of repeating units, wherein each repeating unit comprises two columns of sub-pixels which are adjacently arranged along a first direction, and each column of sub-pixels in each repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel;
the repeating units form two pixels which are adjacently arranged along a second direction, each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, virtual central connecting lines of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel form a triangle, and along the first direction, the directions of vertexes of the triangles corresponding to the two pixels along the first direction are opposite; wherein the first direction and the second direction are perpendicular to each other;
the plurality of repeating units form a plurality of pixel groups, each pixel group comprises two rows of repeating units which are adjacently arranged along the first direction, at least part of the pixel groups are provided with a set connecting line which is a virtual center connecting line of a first sub-pixel in the ith row of sub-pixels of the first row of repeating units and a corresponding first sub-pixel in the second row of sub-pixels of the ith row of repeating units, the included angle between the set connecting line and the first direction is 45 degrees, and the first sub-pixels positioned on the set connecting line exist in other rows of sub-pixels of the first row of repeating units and the second row of repeating units; (ii) a Wherein i is equal to 1 or i is equal to 2.
Further, in at least some of the pixel groups, the first column of repeating units and the second column of repeating units are arranged along the second direction in a staggered manner.
Further, in at least part of the pixel groups, the upper surface of the second column of repeating units is higher than the upper surface of the first column of repeating units; alternatively, the upper surface of the first column of repeating units is higher than the upper surface of the second column of repeating units.
Further, in the pixel group, a distance between virtual centers of sub-pixels at the same positions of the first column of repeating units and the second column of repeating units is W, a distance between virtual centers of sub-pixels at the same positions of adjacent repeating units in one column of the repeating units is H, and a distance that the first column of repeating units and the second column of repeating units are staggered along the second direction is H, which satisfies the following calculation formula:
H＝W+h
further, the ratio of H to W is equal to 2: 1; or the ratio of H to W is equal to 2n/(n +1) and n is an integer greater than 1.
Further, at least part of the pixel group has sub-pixels which are arranged in contact with and have the same color with the sub-pixels in the second column of the first column of the repeating unit and the sub-pixels in the first column of the second column of the repeating unit.
Further, the first sub-pixel, the second sub-pixel and the third sub-pixel are a green sub-pixel, a red sub-pixel and a blue sub-pixel, respectively.
In a second aspect, an embodiment of the present invention further provides a mask for manufacturing the pixel structure according to the first aspect.
Furthermore, the size of at least one evaporation opening of the mask plate corresponds to the size of two sub-pixels with the same color.
In a third aspect, an embodiment of the present invention further provides a display device, including the pixel structure according to any one of the first aspect.
The embodiment of the invention provides a pixel structure, a mask and a display device, wherein the pixel structure comprises a plurality of repeating units, the plurality of repeating units form a plurality of pixel groups, each pixel group comprises two rows of repeating units which are adjacently arranged along a first direction, a first sub-pixel is a sub-pixel with highest brightness and capable of defining the center of a pixel, in at least part of the pixel groups, the first sub-pixel capable of forming a 45-degree connecting line is arranged in the first row of sub-pixels and the third row of sub-pixels, the first sub-pixels positioned on the 45-degree connecting line are arranged in the second row of sub-pixels and the fourth row of sub-pixels, or the first sub-pixels capable of forming a 45-degree connecting line are arranged in the second row of sub-pixels and the fourth row of sub-pixels, and the first sub-pixels positioned on the 45-degree connecting line are arranged in the first row of sub-pixels and the third row of sub-pixels, so that a 45-degree oblique line can be accurately displayed by the display device in the, the display effect of the display device when displaying, for example, fonts is optimized.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic layout structure of a pixel structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an arrangement of pixel structures in the prior art;
FIG. 3 is a diagram of oblique lines corresponding to FIG. 2;
fig. 4 is a schematic layout structure of another pixel structure according to an embodiment of the present invention;
fig. 5 is a schematic top view of a mask according to an embodiment of the present invention;
fig. 6 is a schematic top view of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Throughout this specification, the same or similar reference numbers refer to the same or similar structures, elements, or processes. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As background art, a display device can display fonts for a user to read, most of oblique lines in the fonts are 45 °, but the overall direction of oblique line connecting lines formed by sub-pixels with highest brightness for evaluating the centers of pixels in the pixels of the display device often deviates from the direction of 45 ° font oblique lines, so that the display device cannot accurately display 45 ° font oblique lines when displaying the fonts, that is, the actually displayed oblique lines are angularly offset relative to the 45 ° font oblique lines. In addition, it may even occur that the overall direction of the diagonal connection line formed by the sub-pixel with the highest brightness for evaluating the center of the pixel in the pixel is reversed after deviating from the 45 ° font slope to a certain extent, which may cause the display device to display jaggies when displaying the 45 ° slope, and may affect the display effect when the display device displays, for example, the font.
In view of this, the pixel structure according to the embodiment of the invention includes a plurality of repeating units, the plurality of repeating units form a plurality of pixel groups, each pixel group includes two rows of repeating units adjacently arranged along a first direction, the first sub-pixel is a sub-pixel with the highest brightness capable of defining the center of the pixel, at least part of the pixel groups are provided with a first sub-pixel capable of forming a 45 ° connection line in the first row and a second sub-pixel capable of forming a 45 ° connection line in the third row, or are provided with a first sub-pixel capable of forming a 45 ° connection line in the second row and a first sub-pixel capable of forming a 45 ° connection line in the fourth row, and the first sub-pixel in the 45 ° connection line in the first row and the second row are provided with a first sub-pixel capable of forming a 45 ° connection line in the area where the pixel group is located, so that the first sub-pixel can form a 45 ° oblique line, the display device can accurately display a 45 ° oblique line, even if the first sub-pixels in other columns of sub-pixels in the pixel group except the i-th column of sub-pixels in the first column of repeating unit and the second column of repeating unit are not completely symmetrical about the 45-degree oblique line, only the offset saw-teeth with small size exist in the area where the pixel group is located, the problem that the angle deviation or the saw-teeth of the oblique line of the font appear in a large range is avoided, the resolution of the display device can be adjusted to enable the size of the small offset saw-teeth existing in the display structure provided by the embodiment of the invention to be smaller than the recognition accuracy of human eyes, and the display effect of the display device when displaying the font for example is optimized.
Fig. 1 is a schematic layout structure of a pixel structure according to an embodiment of the present invention. As shown in fig. 1, the pixel structure includes a plurality of repeating units 1, each repeating unit 1 includes two columns of sub-pixels adjacently arranged along a first direction X, each column of sub-pixels in the repeating unit 1 includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and exemplarily, the first sub-pixel may be set as a green sub-pixel G, the second sub-pixel is a red sub-pixel R, and the third sub-pixel is a blue sub-pixel B, and fig. 1 exemplarily sets up the repeating unit 1, the first column of sub-pixels includes the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B in turn, and the second column of sub-pixels includes the blue sub-pixel B, the red sub-pixel R and the green sub-pixel G in turn.
The repeating unit 1 forms two pixels 2 adjacently arranged along the second direction Y, each pixel 2 includes a first sub-pixel, a second sub-pixel and a third sub-pixel, for example, each pixel 2 includes a green sub-pixel G, a red sub-pixel R and a blue sub-pixel B, virtual centers of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel 2 are connected to form a triangle, the virtual center of the sub-pixel can be understood as a geometric center of the sub-pixel, for example, the shape of the sub-pixel is a rectangle, and the virtual center of the sub-pixel is the geometric center of the rectangle.
Along the first direction X, the directions of the vertexes of the triangles corresponding to the two pixels 2 in the repeating unit 1 along the first direction X are opposite, for example, in fig. 1, the vertex of the triangle corresponding to the upper pixel 2 in the repeating unit 1 along the first direction X is directed to the right side, and the vertex of the triangle corresponding to the lower pixel 2 in the repeating unit 1 along the first direction X is directed to the left side, so that the arrangement structure of the internal sub-pixels of each pixel 2 after being turned 180 degrees along the first direction X is the same as the arrangement structure of the sub-pixels in the adjacent pixels 2 in the same column, the pixel arrangement is tighter, the pixel pitch is favorably reduced, and the resolution of the display device is improved.
The repeating unit 1 forms a plurality of pixel groups 3, two pixel groups 3 are exemplarily shown in fig. 1, each pixel group 3 includes two columns of repeating units 1 adjacently disposed along a first direction X, for example, each pixel group 3 includes a first column of repeating units 11 and a second column of repeating units 12 adjacently disposed along the first direction X, each repeating unit 1 includes two columns of sub-pixels, at least part of the pixel groups 3 are disposed, fig. 1 exemplarily sets, in two pixel groups 3, a virtual center connecting line of a first sub-pixel in an ith column of sub-pixels of the first column of repeating unit 11 and a corresponding first sub-pixel in an ith column of sub-pixels of the second column of repeating unit 12 as a set connecting line, an angle between the set connecting line and the first direction is 45 °, for example, if the set connecting line is a diagonal broken line a, i is equal to 1, a first sub-pixel in the first column of sub-pixels of the first column of repeating unit 11, for example, a green sub-pixel G and a corresponding first sub-pixel in the first column of the second column of repeating unit 12, may be set, an angle between the virtual center connecting line of the virtual center connecting line is α 1 ° of the diagonal broken line, for example, the diagonal broken line is α °.
On the basis that the included angle α 1 between the oblique dashed line a and the first direction X is 45 °, a first sub-pixel located on a set connection line exists in each of the other rows of sub-pixels of the first row of repeating unit 11 and the second row of repeating unit 12, that is, a first sub-pixel located on the oblique dashed line a, that is, a green sub-pixel G exists in each of the second row of sub-pixels of the first row of repeating unit 11 and the second row of sub-pixels of the second row of repeating unit 12, that is, only a first sub-pixel located on the oblique dashed line a exists in the second row of sub-pixels of the first row of repeating unit 11, and a first sub-pixel located on the oblique dashed line a exists in the second row of sub-pixels of the second row of repeating unit 12.
In addition, as shown in fig. 1, for example, if the connecting line is a diagonal dashed line b, i is equal to 2, a virtual center connecting line between a first sub-pixel in the second column of sub-pixels of the first column repeating unit 11, for example, a green sub-pixel G, and a corresponding first sub-pixel in the second column of sub-pixels of the second column repeating unit 12, for example, a green sub-pixel G, may be set as the connecting line, that is, the diagonal dashed line b in fig. 1, and an included angle α 2 between the diagonal dashed line b and the first direction X is 45 °.
On the basis that the included angle α 2 between the oblique dashed line b and the first direction X is 45 °, a first subpixel on a set connection line exists in other rows of subpixels of the first row of repeating unit 11 and the second row of repeating unit 12, that is, a first subpixel on the oblique dashed line b, that is, a green subpixel G, exists in the first row of subpixels of the first row of repeating unit 11 and the first row of subpixels of the second row of repeating unit 12, that is, it is only necessary to set that the first subpixel in the first row of subpixels of the first row of repeating unit 11 is located on the oblique dashed line b, and the first subpixel in the row of subpixels of the second row of repeating unit 12 is located on the oblique dashed line b.
Specifically, the display device may display a font for a user to read, most oblique lines in the font are 45 °, but the overall direction of an oblique line formed by sub-pixels with the highest brightness for evaluating the center of the pixel in the pixels of the display device often deviates from a 45 ° font oblique line by a certain angle, such as the pixel structure shown in fig. 2, the luminance of the green sub-pixel G is the highest and can be used for evaluating the center of the pixel, the oblique line in fig. 2 shows a 45 ° font oblique line, and it can be seen that the oblique line of the green sub-pixel G, i.e., the oblique solid line in fig. 2 deviates downward by a certain angle β with respect to the 45 ° font oblique line, so that the display device cannot accurately display the 45 ° font oblique line when displaying the font, i.e., the actually displayed oblique line deviates from the 45 ° font oblique line by an angle, and in addition, referring to fig. 3, even the overall direction of the oblique line formed by the green sub-pixel g., after deviating from the 45 ° font line by a certain degree, may be folded back and cause a reverse deviation, i.e., a certain angle β may occur when displaying the font, such as 0 a jagged font when displaying the font.
As shown in fig. 1, in at least a part of the pixel group 3, the first column sub-pixel and the third column sub-pixel are arranged to have the first sub-pixel capable of forming a 45 ° connection line, and the second column sub-pixel and the fourth column sub-pixel both have the first sub-pixel on the 45 ° connection line, or the second column sub-pixel and the fourth column sub-pixel are arranged to have the first sub-pixel capable of forming a 45 ° connection line, and the first column sub-pixel and the third column sub-pixel both have the first sub-pixel on the 45 ° connection line, the first sub-pixel may be, for example, a green sub-pixel G, the light-emitting luminance of which is greater than that of the red sub-pixel R and that of the blue sub-pixel B, the green sub-pixel G is capable of defining the light-emitting center of the pixel 2, that is, in at least a part of three columns of the pixel group 3, the first column sub-pixel and the third column sub-pixel are arranged to have the, and the second column of sub-pixels and the fourth column of sub-pixels both have a green sub-pixel G on the 45 ° connection line, or the second column of sub-pixels and the fourth column of sub-pixels are arranged to have a green sub-pixel G capable of forming a 45 ° connection line, and the first column of sub-pixels and the third column of sub-pixels both have a green sub-pixel G on the 45 ° connection line, so that the green sub-pixel G can form a 45 ° oblique line in the area where the pixel group 3 is located, the display device can accurately display the 45 ° oblique line, even if the first sub-pixels in the other columns of sub-pixels in the pixel group 3 except the i-th column of sub-pixels in the first column repeating unit 11 and the second column repeating unit 12 are not completely symmetrical with respect to the 45 ° oblique line, there will only be an offset sawtooth with a small size in the area where the pixel group 3 is located, and the occurrence of the angular deviation or the sawtooth of the oblique line in a large range shown in fig. 2 or fig. 3 can be avoided, the size of the small offset sawtooth existing in the display structure provided by the embodiment of the invention is smaller than the recognition precision of human eyes by adjusting the resolution of the display device, so that the display effect of the display device when displaying, for example, fonts is optimized.
Alternatively, as shown in fig. 1, in at least some of the pixel groups 3, the first column repeating unit 11 and the second column repeating unit 12 are arranged to be shifted in the second direction Y. Specifically, referring to fig. 2, if each of the column repetition units in the entire display device is aligned along the second direction, that is, the pixel structure is aligned along the row direction, and the unit formed by each two columns of sub-pixels is aligned along the column direction, the oblique connecting line formed by the green sub-pixel G in the display device deviates from the 45 ° font oblique line, so that the display device cannot accurately display the 45 ° font oblique line when displaying the font, and even the whole direction of the oblique connecting line formed by the green sub-pixel G shown in fig. 3 may be folded back after deviating from the 45 ° font by a certain degree to generate a reverse deviation, so that the sawtooth a0 appears when displaying the oblique line in the display device, which affects the display effect when the display device displays, for example, the font.
In the embodiment of the invention, at least part of the pixel groups 3 are arranged, the first column repeating unit 11 and the second column repeating unit 12 are arranged along the second direction Y in a staggered manner, by arranging the first column of repeating units 11 and the second column of repeating units 12 at a staggered distance, the included angle between the virtual center connecting line of the first sub-pixel in the ith column of sub-pixels of the first column of repeating units 11 and the corresponding first sub-pixel in the ith column of sub-pixels of the second column of repeating units 12 and the first direction X is 45 degrees, and the first sub-pixel on the set connection line exists in the sub-pixels of other columns in the pixel group 3 except the sub-pixel of the ith column in the first column repeating unit 11 and the second column repeating unit 12, in the area of the pixel group 3, the green sub-pixels G can form 45 ° oblique lines, and the display device can accurately display the 45 ° oblique lines of the fonts, so that the display effect of the display device when displaying, for example, the fonts is optimized.
Alternatively, as shown in fig. 1, in at least some of the pixel groups 3, the upper surface of the second column repeating unit 12 may be arranged higher than the upper surface of the first column repeating unit 11, that is, in the pixel group 3, the second column repeating unit 12 is arranged to be shifted upward with respect to the first column repeating unit 11, so that the first sub-pixel, that is, the green sub-pixel G, in the pixel group 3 forms a 45 ° font oblique line inclined to the right, and the display effect when the display device displays a stroke inclined to the right by 45 ° in the font is optimized. Meanwhile, as shown in fig. 4, unlike the pixel structure shown in fig. 1, in fig. 4, at least part of the pixel group 3 is arranged, the upper surface of the first column repeating unit 11 is higher than the upper surface of the second column repeating unit 12, that is, in the pixel group 3, the second column repeating unit 12 is arranged to be shifted downward with respect to the first column repeating unit 11, so that the first sub-pixel, that is, the green sub-pixel G, in the pixel group 3 forms a 45 ° font oblique line inclined to the left, and the display effect when the display device displays a stroke inclined by 45 ° to the left in the font is optimized.
It should be noted that, the above embodiment takes the first direction X as the row direction of the pixel structure arrangement and the second direction Y as the column direction of the pixel structure arrangement as an example, and only a part of the pixel structures in the display device are shown in the drawings, the pixel structures in the actual product are not limited thereto, and the number of pixels in the display device may be changed accordingly according to the actual needs. In addition, the first column of sub-pixels, the second column of sub-pixels, and the like in the embodiments of the present invention are all used as reference standards for describing the embodiments of the present invention, and are not intended to limit the pixel columns in actual products.
Alternatively, with reference to fig. 1 and 4, in the pixel group 3, a distance between virtual centers of sub-pixels at the same positions of the first column repeating unit 11 and the second column repeating unit 12 is W, a distance between virtual centers of sub-pixels at the same positions of adjacent repeating units 1 in one column repeating unit 1 is H, and a distance that the first column repeating unit 11 and the second column repeating unit 12 are shifted in the second direction Y is H satisfies the following calculation formula:
H＝W+h
specifically, the sub-pixels at the same positions of the first column repeating unit 11 and the second column repeating unit 12 may be, for example, in the pixel group 3, respectively, a first second sub-pixel in the first column of sub-pixels of the first column repeating unit 11, that is, the red sub-pixel R, and a first second sub-pixel in the first column of sub-pixels of the second column repeating unit 12, that is, the red sub-pixel R, and a distance between virtual centers of the two, that is, a distance between the two and the same side edge, is W. In a row of repeating units 1, for example, the sub-pixels at the same positions in adjacent repeating units 1 may be respectively the first sub-pixel of the first row of sub-pixels of the first repeating unit 1, i.e. the green sub-pixel G, in the first row of repeating units 11, and the first sub-pixel of the first row of sub-pixels of the second repeating unit 1, i.e. the green sub-pixel G, in the first row of repeating units 11, the distance between the virtual centers of the two sub-pixels is the distance between the two same side edges, which is H, i.e. W is the width of one repeating unit 1 along the first direction X, and H is the width of one repeating unit 1 along the second direction Y.
Referring to the example relationship of H, W and H shown in fig. 1, since an included angle α between an oblique dashed line a and the first direction is equal to 45 °, d is equal to W, and the offset distance between the first column of repeating units 11 and the second column of repeating units 12 along the second direction Y is set to be H equal to the difference between H and W, so that a component of a virtual center connecting line of an ith column of sub-pixels of the first column of repeating units 11, that is, a component of a green sub-pixel G in the ith column of sub-pixels of the second column of repeating units 12, that is, a component of a virtual center connecting line of the green sub-pixel G in the first direction X is equal to a component of the connecting line in the second direction Y, and the process of setting an included angle α between the virtual center connecting line and the first direction X to be 45 ° is implemented, so that the display device can accurately display 45 ° oblique lines, and the display effect of the display device when displaying, for example, is optimized.
Alternatively, in conjunction with fig. 1 and 4, the ratio of H to W may be set equal to 2: 1, in this case, without a compression algorithm, the display device directly displays the pixels at a ratio of 1:1, that is, there is no borrowing relationship between the pixels, and in this case, for one repeating unit 1, there is one pixel along the first direction X, and there are two pixels along the second direction Y, that is, H: w is 2: according to the above formula for H, setting H equal to 1/2 times H may make H equal to W + H, and further make the component of the virtual center connecting line of the first sub-pixel in the ith column of sub-pixels of the first column repeating unit 11, that is, the green sub-pixel G, and the component of the virtual center connecting line of the first sub-pixel in the ith column of sub-pixels of the second column repeating unit 12, that is, the green sub-pixel G, in the first direction X equal to the component of the connecting line in the second direction Y, so as to set the included angle between the virtual center connecting line and the first direction X to 45 °, enable the display device to accurately display 45 ° font oblique lines, and optimize the display effect of the display device when displaying, for example, fonts.
Alternatively, in conjunction with fig. 1 and fig. 4, the ratio of H to W may also be set to be equal to 2n/(n +1) and n is a positive integer, and an algorithm of borrowing the following pixels may be adopted to improve the virtual resolution of the display device, for example, an 2/3SPR (Sub Pixel Rendering) algorithm may be adopted, that is, n is set to be equal to 2, 2m Pixel units in the first direction X achieve the display effect of 3m Pixel units in the Real Pixel structure, m is a positive integer, that is, each repeating unit 1 has two pixels in the second direction Y, one Pixel in the first direction X, and the Pixel resolution in the first direction X is compressed to 2/3, so that the size W of the repeating unit 1 in the first direction X and the size H in the second direction Y have the following relationship:
H/2＝2/3W
it can be seen that W is 3/4H, the ratio of H to W is equal to 2n/(n +1), and n is equal to 2, according to the above calculation formula of H, setting H equal to 1/4 times H can make H equal to W + H, and further make the component of the virtual center connecting line of the ith column of sub-pixels in the first column of repeating unit 11, that is, the green sub-pixel G, and the first sub-pixel of the ith column of sub-pixels in the second column of repeating unit 12, that is, the green sub-pixel G, in the first direction X equal to the component of the connecting line in the second direction Y, so as to set the included angle between the virtual center connecting line and the first direction X to 45 °, so that the display device can accurately display 45 ° font oblique lines, and optimize the display effect of the display device when displaying, for example, fonts.
For example, the shape of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be a rectangle, a square, a triangle, a pentagon, or a hexagon, and the like, and the shape of the part may be modified based on the aforementioned shape, for example, four corners of the quadrangle are rounded, that is, each corner presents a certain radian, and the specific shape of the first sub-pixel, the second sub-pixel, and the third sub-pixel is not limited in the embodiment of the present invention.
Alternatively, in combination with fig. 1 and 4, at least some of the pixel groups 3 may be arranged such that there are subpixels in the second column of the first column of the repeating unit 11 and subpixels in the first column of the second column of the repeating unit 12 that are arranged in contact and have the same color.
Specifically, in the at least part of the pixel group 3, a virtual center connecting line between a first sub-pixel in the ith column of sub-pixels of the first column repeating unit 11 and a corresponding first sub-pixel in the ith column of sub-pixels of the second column repeating unit 12 is a set connecting line, an included angle between the set connecting line and the first direction X is 45 °, the first sub-pixel on the set connecting line exists in each of the sub-pixels in the other columns of the first column repeating unit 11 and the second column repeating unit 12, so that the display device can accurately display 45 ° oblique line fonts, and when the display device displays, for example, a font, the display effect of the display device is optimized, while in the at least part of the pixel group 3, sub-pixels which are in contact with and are arranged exist in the second column of sub-pixels of the first column repeating unit 11 and have the same color exist in the first column of sub-pixels of the second column repeating unit 12, for example, a first blue sub-pixel B in the second column of the first column repeating unit 11 and a first blue sub-pixel in the first column of the second column The sub-pixel B is disposed in contact. When the pixel structure provided by the embodiment of the present invention is formed by using a mask for evaporation, an opening of the mask for forming the subpixels, which are arranged in contact and have the same color, in the second column of subpixels of the first column of repeating unit 11 and the first column of subpixels of the second column of repeating unit 12 may be set as one opening, and with respect to the subpixels, which are arranged in contact and have different colors, the mask 4 does not need to be replaced or moved in the process of forming the subpixels, which are arranged in contact and have the same color, in the second column of subpixels of the first column of repeating unit 11 and the first column of subpixels of the second column of repeating unit 12 by using the mask 4 for evaporation, thereby simplifying the manufacturing process of the pixel structure.
The pixel structure provided by the embodiment of the invention comprises a plurality of repeating units, wherein the plurality of repeating units form a plurality of pixel groups, each pixel group comprises two rows of repeating units which are adjacently arranged along a first direction, a first sub-pixel is a sub-pixel with highest brightness and can define the center of a pixel, at least part of the pixel groups are provided with a first sub-pixel which can form a 45-degree connecting line and is arranged in the first row of sub-pixels and a second sub-pixel which are arranged in the third row of sub-pixels, or are provided with a first sub-pixel which can form a 45-degree connecting line and are arranged in the second row of sub-pixels and the fourth row of sub-pixels, and are respectively provided with a first sub-pixel which is arranged in the 45-degree connecting line, so that the first sub-pixels can form a 45-degree oblique line in the area where the pixel group is arranged, and the display device can accurately display the 45-degree oblique line, even if the first sub-pixels in other columns of sub-pixels in the pixel group except the i-th column of sub-pixels in the first column of repeating unit and the second column of repeating unit are not completely symmetrical about the 45-degree oblique line, only the offset saw-teeth with small size exist in the area where the pixel group is located, the problem that the angle deviation or the saw-teeth of the oblique line of the font appear in a large range is avoided, the resolution of the display device can be adjusted to enable the size of the small offset saw-teeth existing in the display structure provided by the embodiment of the invention to be smaller than the recognition accuracy of human eyes, and the display effect of the display device when displaying the font for example is optimized.
Fig. 5 is a schematic top view structure diagram of a mask according to an embodiment of the present invention, where the mask 4 having the structure shown in fig. 5 is used to manufacture the pixel structure of the above embodiment, taking the pixel structure shown in fig. 1 as an example, and referring to fig. 1 and fig. 5, a size of at least one evaporation opening 5 of the mask 4 corresponds to a size of two sub-pixels with the same color, for example, a size of the opening 5 is equal to a sum of sizes of a first blue sub-pixel B in a second column of sub-pixels of the first column repeating unit 11 and a first blue sub-pixel B in a first column of sub-pixels of the second column repeating unit 12, and openings of the mask 4, which are used to form sub-pixels in the second column of the first column repeating unit 1 and sub-pixels in the first column of the second column repeating unit 1, and are in contact with each other and have the same color, so that the second column of sub-pixels and the second column of the first column repeating unit 1 are formed by evaporation using the mask 4 In the process that the sub-pixels which are arranged in a contact mode and have the same color exist in the first column of sub-pixels of the unit 1, the mask 4 does not need to be replaced or moved, and the manufacturing process of the pixel structure is simplified.
Fig. 6 is a schematic top view structure diagram of a display device according to an embodiment of the present invention, and as shown in fig. 6, a display device 200 includes the pixel structure according to the above embodiment, so that the display device 200 according to the embodiment of the present invention has the advantages of the above embodiment, and details are not repeated herein. For example, the display device 200 may be an oled (organic Light Emitting diode) display device, a Micro LED display device, or a liquid crystal display device, and the display device may include a mobile phone, a computer, and other terminal devices.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A pixel structure, comprising:
the pixel array comprises a plurality of repeating units, wherein each repeating unit comprises two columns of sub-pixels which are adjacently arranged along a first direction, and each column of sub-pixels in each repeating unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel;
the repeating units form two pixels which are adjacently arranged along a second direction, each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, virtual central connecting lines of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel form a triangle, and along the first direction, the directions of vertexes of the triangles corresponding to the two pixels along the first direction are opposite; wherein the first direction and the second direction are perpendicular to each other;
the plurality of repeating units form a plurality of pixel groups, each pixel group comprises two rows of repeating units which are adjacently arranged along the first direction, at least part of the pixel groups are provided with a set connecting line which is a virtual center connecting line of a first sub-pixel in the ith row of sub-pixels of the first row of repeating units and a corresponding first sub-pixel in the ith row of sub-pixels of the second row of repeating units, the included angle between the set connecting line and the first direction is 45 degrees, and the first sub-pixels positioned on the set connecting line exist in other rows of sub-pixels of the first row of repeating units and the second row of repeating units; wherein i is equal to 1 or i is equal to 2.
2. The pixel structure according to claim 1, wherein at least some of the pixel groups have a first column of repeating units and a second column of repeating units that are offset along the second direction.
3. The pixel structure according to claim 2, wherein at least some of the pixel groups have a top surface of the second column of repeating units higher than a top surface of the first column of repeating units; alternatively, the upper surface of the first column of repeating units is higher than the upper surface of the second column of repeating units.
4. The pixel structure according to claim 2, wherein in the pixel group, a distance between virtual centers of sub-pixels at the same positions in a first column of repeating units and a second column of repeating units is W, a distance between virtual centers of sub-pixels at the same positions in adjacent repeating units in one column of the repeating units is H, and a distance H that the first column of repeating units and the second column of repeating units are shifted along the second direction satisfies the following calculation formula:
H＝W+h。
5. the pixel structure of claim 4, wherein the ratio of H to W is equal to 2: 1; or the ratio of H to W is equal to 2n/(n +1) and n is an integer greater than 1.
6. The pixel structure according to claim 1, wherein at least some of the pixel groups have subpixels in the same color and in the contact arrangement between the subpixels in the second column of the first repeating unit and the subpixels in the first column of the second repeating unit.
7. The pixel structure of claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are a green sub-pixel, a red sub-pixel, and a blue sub-pixel, respectively.
8. A reticle for use in manufacturing a pixel structure according to any one of claims 1 to 7.
9. The mask as claimed in claim 8, wherein at least one evaporation opening of the mask has a size corresponding to the size of two sub-pixels of the same color.
10. A display device comprising a pixel structure according to any one of claims 1 to 7.
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