CN112201681A - Pixel arrangement structure, electroluminescent display panel, display device and mask plate - Google Patents
Pixel arrangement structure, electroluminescent display panel, display device and mask plate Download PDFInfo
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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Abstract
The invention discloses a pixel arrangement structure, an electroluminescent display panel, a display device and a mask plate, wherein the structure comprises: a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixels are positioned at four vertex angles of the virtual quadrangle; the second sub-pixel is positioned at the center position of the virtual quadrangle, and one of two adjacent second sub-pixels is a first pattern, and the other one is a second pattern; the third sub-pixels are located between two adjacent first sub-pixels, the second sub-pixel at the center position is a virtual quadrangle of the first pattern, the minimum distance between the first pattern and each third sub-pixel is equal and is a first distance, the second sub-pixel at the center position is a virtual quadrangle of the second pattern, the minimum distance between the second pattern and two third sub-pixels in the first direction is equal and is a first distance, the minimum distance between the second pattern and two third sub-pixels in the second direction is equal and is a second distance, and the second distance is larger than the first distance.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel arrangement structure, an electroluminescent display panel, a display device and a mask plate.
Background
Organic Light Emitting Diode (OLED) Display devices are one of the hot spots in the research field of flat panel displays, and compared with Liquid Crystal displays, OLED Display devices have the advantages of low energy consumption, low production cost, self-luminescence, wide viewing angle, fast response speed, and the like.
The structure of the OLED display device mainly comprises: the liquid crystal display device includes a substrate base plate, and pixels arranged in a matrix on the substrate base plate. In general, each pixel is formed by an organic material through a high-precision metal mask by using an evaporation film forming technique, and an organic electroluminescent structure is formed at a corresponding pixel position on an array substrate.
In the current OLED display device, pixels of three colors, red (R), blue (B), and green (G), are generally arranged in a fixed structure, but the current pixel arrangement structure still has a problem that the display effect of the OLED display device is affected due to the inherent characteristics of organic materials.
Therefore, a new pixel arrangement structure, an electroluminescent display panel, a display device and a mask plate are needed.
Disclosure of Invention
In order to solve at least one of the above problems, a first embodiment of the present invention provides a pixel arrangement structure including:
a first sub-pixel, a second sub-pixel and a third sub-pixel;
the first sub-pixels are located at four vertex angles of the virtual quadrangle;
the second sub-pixel is positioned at the center position of the virtual quadrangle, and one of two adjacent second sub-pixels is a first pattern, and the other one is a second pattern;
the third sub-pixels are located between two adjacent first sub-pixels, the second sub-pixel at the center position is in a virtual quadrangle of the first pattern, the minimum distance between the first pattern and each third sub-pixel is equal and is a first distance, the second sub-pixel at the center position is in a virtual quadrangle of the second pattern, the minimum distance between the second pattern and two third sub-pixels in the first direction is equal and is a first distance, the minimum distance between the second pattern and two third sub-pixels in the second direction is equal and is a second distance, and the second distance is larger than the first distance.
Further, the minimum distance between two adjacent first sub-pixels in the virtual quadrangle is a third distance.
Furthermore, the central connecting lines of two first sub-pixels adjacent to each other in the first direction are parallel to each other with respect to the first direction, and the central connecting lines of two first sub-pixels adjacent to each other in the second direction are parallel to each other with respect to the second direction.
Further, the minimum pitch of two second sub-pixels adjacent in the first direction is a fourth distance, and the central connecting lines of the two adjacent second sub-pixels are parallel to the first direction;
the minimum distance between two adjacent second sub-pixels in the second direction is a fifth distance, and the central connecting lines of the two adjacent second sub-pixels are parallel relative to the second direction;
and the fifth distance is greater than the fourth distance.
Further, the first sub-pixel has a sixth distance equal to the minimum distance between the two third sub-pixels in the first direction, and the first sub-pixel has a seventh distance equal to the minimum distance between the two third sub-pixels in the second direction; and the sixth distance is greater than the seventh distance. Further, the connecting lines of the four third sub-pixels in the virtual quadrangle form a parallelogram, wherein,
the minimum distance between two adjacent third sub-pixels in the third direction is an eighth distance;
the minimum distance between two adjacent third sub-pixels in the fourth direction is a ninth distance;
and the ninth distance is greater than the eighth distance.
Furthermore, the central connecting line of two third sub-pixels adjacent to each other in the first direction forms a first included angle with respect to the first direction, and the central connecting line of two third sub-pixels adjacent to each other in the second direction forms a second included angle with respect to the second direction.
Furthermore, the first sub-pixel is an equilateral quadrilateral, the first pattern of the second sub-pixel is a rectangle, the second pattern is a square, and the third sub-pixel is a non-equilateral polygon or an ellipse.
Further, the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.
Further, the area of the third sub-pixel is smaller than that of the first sub-pixel, and the area of the first sub-pixel is smaller than that of the second sub-pixel.
A second embodiment of the present invention provides an electroluminescent display panel comprising the above pixel arrangement structure, wherein adjacent virtual quadrangles are arranged in a row direction and a column direction in a manner of sharing a side.
A third embodiment of the present invention provides a display device including the above electroluminescent display panel.
A fourth embodiment of the present invention provides a high-precision metal mask plate for manufacturing the pixel arrangement structure, including: a plurality of opening regions corresponding to shapes and positions of the first, second or third sub-pixels.
The invention has the following beneficial effects:
aiming at the existing problems, the invention sets a pixel arrangement structure, on one hand, two adjacent second pixels adopt different patterns, and the edges of the first pattern and the second pattern are both set to be parallel to the first direction or the second direction, thereby effectively eliminating the drooping amount generated when the second sub-pixels are obliquely arranged; on the other hand, in the arrangement structure, the positions of the third sub-pixels corresponding to the second sub-pixels are arranged according to different patterns of the second sub-pixels, so that the third sub-pixels and the second sub-pixels with the first patterns or the second patterns can be closely arranged, the problem that the brightness is too fast attenuated due to inherent characteristics of organic materials in the existing pixel arrangement structure is solved, and the display performance of a display device applying the arrangement structure is further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 shows a schematic view of a pixel arrangement according to an embodiment of the invention;
FIG. 2 shows a schematic diagram of a prior art pixel arrangement;
FIG. 3 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
FIG. 4 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
FIG. 5 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
FIG. 6 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
FIG. 7 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
FIG. 8 shows a schematic view of the pixel arrangement of an alternative embodiment of the invention;
fig. 9 shows a schematic view of the pixel arrangement according to an alternative embodiment of the invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the prior art, the R, G and B three-color pixel arrangement structure is shown in fig. 2, a blue sub-pixel 2 'is a rectangular pixel, and a red sub-pixel 1' is located at the center of a first virtual quadrangle AA 'and at four vertex angles of the first virtual quadrangle AA'; the blue sub-pixel 2 'is located at the midpoint of the side of the first virtual quadrangle AA'; the green sub-pixel 3 'is located within the second virtual quadrangle CC, the four second virtual quadrangles CC constituting a first virtual quadrangle AA'. However, the long side direction of the blue sub-pixel 2' in this arrangement is along the plus or minus 45 ° direction, and a drooping amount is easily generated in practical application, which affects the display performance of the display device to which this arrangement is applied. In addition, the blue sub-pixel 2' in the three pixels has the fastest brightness attenuation due to the inherent characteristics of the organic material of the blue sub-pixel, and further greatly influences the display performance of the display device.
Therefore, in order to solve the above problems, the present invention provides a pixel arrangement structure, an electroluminescent display panel, a display device, and a mask plate.
As shown in fig. 1, one embodiment of the present invention provides a pixel arrangement structure, including: a first subpixel 1, a second subpixel 2, and a third subpixel 3;
the first sub-pixel 1 is positioned at four vertex angles of a virtual quadrangle AA;
the second sub-pixel 2 is located at the center of the virtual quadrangle AA, and one of two adjacent second sub-pixels is a first pattern 21 and the other is a second pattern 22;
the third sub-pixel 3 is located between two adjacent first sub-pixels,
in a virtual quadrangle AA, in which the second sub-pixel at the center position is the first pattern 21, the first pattern 21 is equal to the minimum pitch of each third sub-pixel 3 by a first distance L1,
the second sub-pixel at the center position is a virtual quadrangle AA of the second pattern 22, which is equal to the minimum pitch of the two third sub-pixels 3 of the first direction and is a first distance L1,
the second pattern 22 is equal to the minimum pitch of the two third sub-pixels 3 in the second direction and is a second distance L2, and the second distance L2 is greater than the first distance L1.
As shown in fig. 1, in the pixel arrangement structure provided in the embodiment of the present invention, on one hand, two adjacent second pixels adopt different patterns, and the side portions of the first pattern and the second pattern are both set to be parallel to the first direction or to be parallel to the second direction, so that the drooping amount generated when the second sub-pixels are set obliquely is effectively eliminated; on the other hand, in the arrangement structure, the positions of the third sub-pixels corresponding to the second sub-pixels are arranged according to different patterns of the second sub-pixels, so that the third sub-pixels and the second sub-pixels with the first patterns or the second patterns can be closely arranged, the problem that the brightness is too fast attenuated due to inherent characteristics of organic materials in the existing pixel arrangement structure is solved, and the display performance of a display device applying the arrangement structure is further improved.
In an alternative embodiment, the area of the third sub-pixel 3 is smaller than the area of the first sub-pixel 1, and the area of the first sub-pixel 1 is smaller than the area of the second sub-pixel 2. In the present embodiment, considering that human eyes are sensitive to green light, the area of the green sub-pixel is the smallest, and since the attenuation speed of the blue sub-pixel is faster, the area of the blue sub-pixel is set to the largest to reduce the attenuation speed, so that the problem of too fast brightness attenuation under the existing pixel arrangement structure is solved, and the display performance of the display device applying the arrangement structure is further improved.
In an alternative embodiment, the first sub-pixel is an equilateral quadrilateral, the first pattern of the second sub-pixel is a rectangle, the second pattern is a square, and the third sub-pixel is a non-equilateral polygon or an ellipse. In an alternative embodiment, as shown in fig. 3, when the first pixel is a square, the minimum distance between two adjacent first sub-pixels in the virtual quadrangle AA is a third distance L3. In this embodiment, the first sub-pixels 1 are located at four vertex angles of the virtual quadrilateral AA, and the third distance L3 between two adjacent first sub-pixels is the minimum distance, so as to ensure that the arrangement between the pixels is tighter, and improve the display effect of the pixels in the lighting state.
In this embodiment, the first sub-pixel may be an equilateral quadrilateral with a regular shape, such as a square or a diamond. So that the processing saves the process flow and is convenient for manufacturing. In a specific example, as shown in fig. 1, the first sub-pixel 1 is a square, the first pattern 21 of the first sub-pixel 2 is a rectangle with a larger area, the other of the first sub-pixels 2 is a square with a larger area, and the third sub-pixel 3 is an ellipse with a smaller area.
The first direction is the Y direction shown in fig. 1, which is the vertical direction in the figure, and the second direction is the X direction shown in fig. 1, which is the horizontal direction in the figure.
As shown in fig. 1, the first sub-pixel 1 is located at four vertex angles of a virtual quadrangle AA; the second sub-pixel 2 is located at the center position of the virtual quadrangle AA. In the Y-vertical direction, the rectangular pattern 21 and the square pattern 22 are equal to the minimum pitch of each third sub-pixel 2 and are all a first distance L1. Since two adjacent second sub-pixels 2 correspond to two different patterns, in the X horizontal direction, when the second sub-pixel 2 located at the center of the virtual quadrangle AA is the rectangular pattern 21, the first pattern 21 and each third sub-pixel are at a first distance L1; when the second sub-pixel 2 located at the center of the virtual quadrangle AA is the square pattern 22, the second distance L2 is between the second pattern 22 and each third sub-pixel 2, and the second distance L2 is greater than the first distance L1. The three sub-pixels are arranged tightly through the structure, and the minimum distance is reserved between each second sub-pixel 2 and each third sub-pixel 3, so that the pixel opening area can be increased compared with the pixel arrangement under the condition of the same resolution, the attenuation speed of each sub-pixel is reduced, and the display performance of the display device applying the pixel arrangement structure is effectively improved. In another specific example, as shown in fig. 9, the rectangular second pattern 22 is laterally arranged with its long side parallel to the second direction X, and at this time, in this arrangement, the minimum pitch of two second sub-pixels 2 adjacent in the Y vertical direction is a fourth distance L4, the minimum pitch of two second sub-pixels 2 adjacent in the X horizontal direction is a fifth distance L5, and the fourth distance L4 is greater than the fifth distance L5. Through the structural arrangement, the drooping amount of the second sub-pixel 2 caused by the inclined arrangement can be eliminated, and the attenuation speed of the second sub-pixel can be reduced, so that the display effect of the second sub-pixel in a lighting state is improved, and the display performance of the display device with the arrangement structure is further improved.
It should be noted that, no matter the second patterns 22 are arranged horizontally as shown in fig. 9 or vertically as shown in fig. 1, the drooping amount of the second sub-pixels 2 caused by the oblique arrangement can be eliminated, and each second sub-pixel 2 is arranged with another adjacent second sub-pixel close to the second sub-pixel, so as to ensure that the arrangement between the second sub-pixels is more compact and improve the display effect of the pixels in the lighting state. Therefore, those skilled in the art can set the distance between the sub-pixels according to the selected sub-pixel structure according to practical applications, and details thereof are not repeated herein.
It should be noted that, the minimum pitch between the sub-pixels mentioned in the pixel arrangement structure provided in the embodiment of the present invention refers to the shortest distance between the adjacent edges between the sub-pixels. Also, the minimum pitch needs to be greater than or equal to the process limit distance to meet process requirements. The minimum pitch is generally a process-limited distance, and the numerical range of the minimum pitch is generally related to the manufacturing process used, and when a high-precision metal mask (FMM) is used in combination with an etching process to form a pixel pattern, the minimum pitch is about 16 μm, and when a pixel pattern is formed by a laser or electroforming process, the minimum pitch is smaller.
In an alternative embodiment, as shown in fig. 4, in the Y vertical direction, the central connecting lines of two adjacent first sub-pixels 1 are parallel with respect to the first direction Y, and in the X horizontal direction, the central connecting lines of two adjacent first sub-pixels 1 are parallel with respect to the second direction X.
In the embodiment, in the Y vertical direction, the center lines of the first sub-pixels 1 in the same row are located on the same straight line, and the straight line is parallel to the first direction Y, and the boundaries of the sub-pixels on the same side of the first sub-pixels 1 arranged in the same row are the same straight line parallel to the first direction Y. Meanwhile, in the X horizontal direction, the center lines of the plurality of first sub-pixels 1 in the same row are located on the same straight line, and the straight line is parallel to the second direction X, and the boundaries of the sub-pixels on the same side of the plurality of first sub-pixels 1 arranged in the same row are the same straight line parallel to the second direction X. Through this structural arrangement, the drooping amount of the first sub-pixel 1 caused by the inclined arrangement is eliminated, and the attenuation speed of the first sub-pixel 1 can be reduced, so that the display effect of the first sub-pixel in the lighting state is improved, and the display performance of the display device using the arrangement structure is further improved.
In an alternative embodiment, as shown in fig. 5, the minimum pitch of two adjacent second sub-pixels 2 in the Y vertical direction is a fourth distance L4, and the central connecting lines of the two adjacent second sub-pixels are parallel with respect to the first direction; the minimum pitch of the two second sub-pixels 2 adjacent in the X horizontal direction is a fifth distance L5, and the center lines of the two adjacent second sub-pixels are parallel with respect to the second direction, and the fifth distance L5 is greater than the fourth distance L4.
In the present embodiment, no matter the second sub-pixels are the first pattern 21 or the second pattern 22, in the Y-vertical direction, the center lines of all the second sub-pixels 2 in the same row are located on the same straight line and the straight line is parallel to the first direction Y, and the boundaries of the sub-pixels on the same side of all the second sub-pixels 2 arranged in the same row are the same straight line parallel to the first direction Y. Meanwhile, in the X horizontal direction, the center lines of the plurality of second sub-pixels 2 in the same row are located on the same straight line, and the straight line is parallel to the second direction X, and the boundaries of the sub-pixels on the same side of the plurality of second sub-pixels 2 arranged in the same row are the same straight line parallel to the second direction X. Through this structural arrangement, the drooping amount of the second sub-pixel 2 caused by the inclined arrangement is eliminated, and the attenuation speed of the second sub-pixel can be reduced, so that the display effect of the second sub-pixel in the lighting state is improved, and the display performance of the display device using the arrangement structure is further improved.
It should be noted that, in another specific example, as shown in fig. 9, the rectangular second pattern 22 is laterally disposed with its long side parallel to the second direction X, and in this arrangement, in the Y-perpendicular direction, the central connecting lines of two adjacent second sub-pixels are parallel with respect to the first direction Y; in the X horizontal direction, the central connecting lines of two adjacent second sub-pixels are parallel with respect to the second direction X. Through the structural arrangement, the drooping amount of the second sub-pixel 2 caused by the inclined arrangement is eliminated, and the attenuation speed of the second sub-pixel can be reduced, so that the display effect of the second sub-pixel in a lighting state is improved, and the display performance of the display device with the arrangement structure is further improved.
In an alternative embodiment, as shown in fig. 6, the first sub-pixel 1 is equal to the minimum spacing of the two third sub-pixels 3 by a sixth distance L6 in the first direction Y, and the first sub-pixel 1 is equal to the minimum spacing of the two third sub-pixels 3 by a seventh distance L7 in the second direction X.
In the embodiment, the sixth distance L6 in the Y direction is different from the seventh distance L7 in the X direction, and the sixth distance L6 is greater than the seventh distance L7, so that at least one third sub-pixel 3 closely arranged adjacent to each first sub-pixel 1 is arranged around each first sub-pixel 1, thereby improving the problem of excessively fast brightness attenuation under the existing pixel arrangement structure, and further improving the display performance of the display device applying the arrangement structure.
In an alternative embodiment, as shown in fig. 7, the connecting lines of the four third sub-pixels 3 in the virtual quadrangle BB form a parallelogram, wherein,
the minimum pitch of two adjacent third sub-pixels 3 in the third direction is an eighth distance L8;
the minimum pitch of two adjacent third sub-pixels 3 in the fourth direction is a ninth distance L9;
and the ninth distance L9 is greater than the eighth distance L8.
In the present embodiment, the lines of the four third sub-pixels 3 in the virtual quadrangle BB form a parallelogram, and the lengths of two adjacent sides of the parallelogram are the ninth distance L9 and the eighth distance L8, respectively. The center position of the virtual quadrangle BB is provided with one of the second sub-pixels 2 and the first sub-pixels with different patterns, so that each sub-pixel positioned at the center position and each third sub-pixel surrounding each sub-pixel can be uniformly and tightly arranged, the problem of too fast brightness attenuation under the existing pixel arrangement structure is solved, and the display performance of the display device applying the arrangement structure is further improved.
In an alternative embodiment, as shown in fig. 8, the central connecting line of two adjacent third sub-pixels 3 in the Y-vertical direction forms a first angle α with respect to the Y-direction, and the central connecting line of two adjacent third sub-pixels in the X-horizontal direction forms a second angle β with respect to the second direction.
In this embodiment, the adjacent third sub-pixels may be formed by rotating one of the third sub-pixels by 90 ° to form another third sub-pixel, and the arrangement may eliminate the sagging amount of each third sub-pixel. The central connecting line of the two adjacent third sub-pixels 3 in the Y vertical direction is a straight line with a certain inclination angle relative to the Y direction, and the central connecting line of the two adjacent third sub-pixels 3 in the X horizontal direction is a straight line with a certain inclination angle relative to the Y direction, so that a tight and uniform pixel arrangement is formed between the adjacent third sub-pixels, thereby improving the problem of too fast brightness attenuation under the existing pixel arrangement structure, and further improving the display performance of a display device applying the arrangement structure.
In correspondence with the pixel arrangement structure provided in the above embodiment, an embodiment of the present application further provides an electroluminescent display panel using the above pixel arrangement structure, the electroluminescent display panel including the above pixel arrangement structure, wherein adjacent virtual quadrangles are arranged in a row direction and a column direction in a manner of sharing a side.
Since the principle of solving the problems of the organic electroluminescent display panel is similar to that of the pixel arrangement structure, the implementation of the organic electroluminescent display panel can refer to the implementation of the pixel arrangement structure, and repeated details are omitted.
In this embodiment, the virtual quadrangles of the pixel arrangement structure are arranged in the row direction and the column direction in a manner of sharing the side edges, so that the density of each pixel arrangement is effectively improved, the sag generated when each sub-pixel is obliquely arranged is eliminated by the pixel arrangement structure, and the adjacent sub-pixels are closely arranged, so that the problem of too fast brightness attenuation under the existing pixel arrangement structure is solved, and the display performance of the electroluminescent display panel is improved when the electroluminescent display panel is lighted.
Accordingly, the electroluminescent display panel according to the above embodiment of the present invention is suitable for a display device having a display requirement, and therefore, another embodiment of the present invention provides a display device including the electroluminescent display panel. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame or a navigator. The display device can be implemented by referring to the above embodiments of the display panel, and repeated descriptions are omitted.
Based on the same inventive concept, another embodiment of the present invention further provides a high-precision metal mask plate for manufacturing the pixel arrangement structure provided by the embodiment of the present invention, including: a plurality of opening regions corresponding to shapes and positions of the first, second or third sub-pixels.
In the pixel arrangement structure, two adjacent second pixels adopt different patterns, and the edges of the first pattern and the second pattern are both set to be parallel to the first direction or the second direction, so that the drooping amount generated when the second sub-pixels are obliquely arranged is effectively eliminated; and the position of the third sub-pixel corresponding to the second sub-pixel is set according to different patterns of the second sub-pixel, so that the third sub-pixel and the second sub-pixel with the first pattern or the second pattern can be closely arranged, the problem of too fast brightness attenuation caused by inherent characteristics of organic materials under the existing pixel arrangement structure is solved, and the display performance of the display device applying the arrangement structure is further improved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (13)
1. A pixel arrangement, comprising: a first sub-pixel, a second sub-pixel and a third sub-pixel;
the first sub-pixels are located at four vertex angles of the virtual quadrangle;
the second sub-pixel is positioned at the center position of the virtual quadrangle, and one of two adjacent second sub-pixels is a first pattern, and the other one is a second pattern;
the third sub-pixels are located between two adjacent first sub-pixels, the second sub-pixel at the center position is in a virtual quadrangle of the first pattern, the minimum distance between the first pattern and each third sub-pixel is equal and is a first distance, the second sub-pixel at the center position is in a virtual quadrangle of the second pattern, the minimum distance between the second pattern and two third sub-pixels in the first direction is equal and is a first distance, the minimum distance between the second pattern and two third sub-pixels in the second direction is equal and is a second distance, and the second distance is larger than the first distance.
2. A pixel arrangement according to claim 1, wherein the minimum pitch of two adjacent first sub-pixels in the virtual quadrilateral is a third distance.
3. A pixel arrangement according to claim 2, wherein the central connecting lines of two first sub-pixels adjacent in the first direction are parallel with respect to the first direction, and the central connecting lines of two first sub-pixels adjacent in the second direction are parallel with respect to the second direction.
4. A pixel arrangement according to claim 1,
the minimum distance between two adjacent second sub-pixels in the first direction is a fourth distance, and the central connecting lines of the two adjacent second sub-pixels are parallel to the first direction;
the minimum distance between two adjacent second sub-pixels in the second direction is a fifth distance, and the central connecting lines of the two adjacent second sub-pixels are parallel relative to the second direction;
and the fifth distance is greater than the fourth distance.
5. A pixel arrangement according to claim 1, wherein the first sub-pixel is at a sixth distance from the minimum pitch of the two third sub-pixels in the first direction, and the first sub-pixel is at a seventh distance from the minimum pitch of the two third sub-pixels in the second direction; and the sixth distance is greater than the seventh distance.
6. A pixel arrangement according to claim 1, wherein the lines of the four third sub-pixels in the virtual quadrilateral form a parallelogram, wherein,
the minimum distance between two adjacent third sub-pixels in the third direction is an eighth distance;
the minimum distance between two adjacent third sub-pixels in the fourth direction is a ninth distance;
and the ninth distance is greater than the eighth distance.
7. A pixel arrangement according to claim 6, wherein the central connecting lines of two third sub-pixels adjacent in the first direction make a first angle with respect to the first direction, and the central connecting lines of two third sub-pixels adjacent in the second direction make a second angle with respect to the second direction.
8. A pixel arrangement according to claim 1, wherein the first sub-pixel is an equilateral quadrilateral, the first pattern of the second sub-pixel is a rectangle, the second pattern is a square, and the third sub-pixel is a non-equilateral polygon or an ellipse.
9. A pixel arrangement according to any of claims 1-8, wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel and the third sub-pixel is a green sub-pixel.
10. The pixel arrangement according to claim 9, wherein the area of the third sub-pixel is smaller than the area of the first sub-pixel, and the area of the first sub-pixel is smaller than the area of the second sub-pixel.
11. An electroluminescent display panel comprising the pixel arrangement structure according to any one of claims 1 to 10, wherein adjacent virtual quadrangles are arranged in a row direction and a column direction with a common side.
12. A display device comprising the electroluminescent display panel according to claim 11.
13. A high-precision metal mask plate for fabricating the pixel arrangement structure according to any one of claims 1 to 10, comprising: a plurality of opening regions corresponding to shapes and positions of the first, second or third sub-pixels.
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| WO2024055704A1 (en) * | 2022-09-15 | 2024-03-21 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN112201681B (en) | 2022-08-09 |
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