CN114361232A - Display panel, mask assembly and display device - Google Patents
Display panel, mask assembly and display device Download PDFInfo
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- CN114361232A CN114361232A CN202210006069.XA CN202210006069A CN114361232A CN 114361232 A CN114361232 A CN 114361232A CN 202210006069 A CN202210006069 A CN 202210006069A CN 114361232 A CN114361232 A CN 114361232A
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Abstract
The application provides a display panel, mask assembly and display device, display panel includes the pixel unit, every pixel unit includes first, second and third sub-pixel, the central line of three sub-pixel is triangle-shaped and sets up, second sub-pixel and third sub-pixel are arranged along first direction, the adjacent first sub-pixel setting of two adjacent pixel units in the second direction, or the adjacent setting of second sub-pixel and the adjacent setting of third sub-pixel of two pixel units, three sub-pixel is the same with the adjacent sub-pixel's that corresponds interval part in the pixel unit on the second direction, the part is different. The high-resolution display is realized through the arrangement of the pixel units and the sub-pixels in the pixel units, the aperture opening ratio proportion is adjusted, and the maximum service life of the device is prolonged.
Description
Technical Field
The application relates to the field of display, especially, relate to a display panel, mask assembly and display device.
Background
With the continuous development of display technology, how to increase the resolution of a display screen becomes an important direction for research and development. High resolution can ensure a better display picture, however, the high resolution display screen requires extremely high requirements on the manufacturing process because the pixel size and the inter-pixel distance are correspondingly reduced, and how to improve the resolution and reduce the process difficulty becomes an exploration problem.
Disclosure of Invention
In view of the above, the present application provides a display panel, a display device, a mask assembly and a manufacturing method.
The display panel of the embodiment of the application comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and the central connecting line of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel unit is arranged in a triangular shape;
the pixel units are arranged along a first direction and a second direction, and the second sub-pixels and the third sub-pixels are arranged along the first direction, so that the first sub-pixels of two adjacent pixel units in the second direction are adjacently arranged, or the second sub-pixels of two adjacent pixel units in the second direction are adjacently arranged and the third sub-pixels are adjacently arranged;
the three sub-pixels in the pixel unit are partially same with and partially different from the pitches of the corresponding adjacent sub-pixels in the second direction.
In some embodiments, the pitch of the second sub-pixel in the second direction in the pixel unit from the corresponding adjacent second sub-pixel is equal to the pitch of the third sub-pixel in the second direction in the pixel unit from the corresponding adjacent third sub-pixel, and the pitch of the first sub-pixel in the second direction in the pixel unit from the corresponding adjacent first sub-pixel is smaller than the pitch of the second sub-pixel in the second direction in the pixel unit from the corresponding adjacent second sub-pixel.
In some embodiments, a center of a triangle formed by connecting centers of the first sub-pixel, the second sub-pixel and the third sub-pixel is a light emitting center of the pixel unit.
In some embodiments, the light emission centers of the pixel units are disposed on the same line along the first direction.
In some embodiments, the first sub-pixel, the second sub-pixel, and the third sub-pixel each have a quadrilateral shape or a pentagonal shape.
In some embodiments, the first subpixel, the second subpixel, and the third subpixel each include at least one right angle.
In some embodiments, the right-angled sides of the first sub-pixel, the second sub-pixel, and the third sub-pixel are each disposed along a direction parallel to the first direction and the second direction, respectively.
In some embodiments, the corners of the first sub-pixel, the second sub-pixel, and the third sub-pixel are rounded.
In some embodiments, an edge of the first sub-pixel is parallel to an opposite edge of the first, second and third adjacent sub-pixels, an edge of the second sub-pixel is parallel to an opposite edge of the first, second and third adjacent sub-pixels, and an edge of the third sub-pixel is parallel to an opposite edge of the first, second and third adjacent sub-pixels.
In some embodiments, the emission color of the first sub-pixel, the emission color of the second sub-pixel, and the emission color of the third sub-pixel are different from each other.
In some embodiments, the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.
In some embodiments, two of the pixel units adjacent to each other in the second direction have mirror symmetry with respect to a perpendicular bisector of two of the first sub-pixel center connecting lines adjacently disposed in the second direction, or have mirror symmetry with respect to a perpendicular bisector of two of the second sub-pixel center connecting lines adjacently disposed in the second direction, or have mirror symmetry with respect to a perpendicular bisector of two of the third sub-pixel center connecting lines adjacently disposed in the second direction.
In some embodiments, a side of the first sub-pixel relative to the second sub-pixel in the pixel unit forms a predetermined angle with the first direction.
In some embodiments, the first sub-pixel includes a first side parallel to the first direction, the first sides of two adjacent first sub-pixels in the second direction are disposed oppositely and parallelly, and a distance between the first sub-pixel and the corresponding adjacent first sub-pixel in the pixel unit in the second direction is equal to a distance between the first sides of two adjacent first sub-pixels.
In some embodiments, the second sub-pixel includes a second side parallel to the first direction, the second sides of two adjacent second sub-pixels in the second direction are oppositely disposed in parallel, and a distance between the second sub-pixel and a corresponding adjacent second sub-pixel in the pixel unit in the second direction is equal to a distance between the second sides of two adjacent second sub-pixels.
In some embodiments, the third sub-pixel includes a third side parallel to the first direction, the third sides of two adjacent third sub-pixels in the second direction are arranged in opposite parallel, and a distance between the third sub-pixel and a corresponding adjacent third sub-pixel in the pixel unit in the second direction is equal to a distance between the third sides of two adjacent third sub-pixels.
In some embodiments, the first sub-pixel includes a fourth side opposite to the second sub-pixel in the adjacent pixel unit, the second sub-pixel includes a fifth side opposite to the first sub-pixel in the adjacent pixel unit, and the fourth side and the fifth side are parallel to the second direction.
In some embodiments, the display panel is an OLED display panel.
The mask assembly of this application embodiment is used for making any one of above-mentioned embodiment display panel, the mask assembly includes:
the first mask plate comprises a first substrate and at least one first opening arranged on the third substrate, and each first opening covers two first sub-pixels and a distance between the two first sub-pixels, which are adjacently arranged on the display panel in the second direction, of the display panel;
the second mask plate comprises a second substrate and at least one second opening arranged on the third substrate, and each second opening covers two second sub-pixels which are adjacently arranged on the display panel in the second direction and a distance between the two second sub-pixels;
and the third mask plate comprises a third substrate and at least one third opening arranged on the third substrate, and each third opening covers the display panel, two third sub-pixels and two third sub-pixels are adjacently arranged in the second direction, and the distance between the third sub-pixels is equal to the distance between the third sub-pixels.
In some embodiments, a stretching direction of the mask assembly corresponds to the second direction in the display panel.
In certain embodiments, the first opening, the second opening, and the third opening are all hexagonally arranged.
The display device of the embodiment of the present application includes the display panel of any one of the above embodiments.
A method for manufacturing a display panel according to an embodiment of the present invention is a method for manufacturing a display panel according to any one of the above embodiments, the method including:
forming the first sub-pixels of the display panel by using a first mask plate, wherein the first mask plate comprises at least one first opening, and each first opening covers two first sub-pixels and a distance between the two first sub-pixels, which are adjacently arranged on the display panel in the second direction;
forming second sub-pixels of the display panel by using a second mask, wherein the second mask comprises at least one second opening, and each second opening covers two second sub-pixels and a distance between the two second sub-pixels, which are adjacently arranged in the second direction, of the display panel;
and forming the third sub-pixels of the display panel by using a third mask plate, wherein the third mask plate comprises at least one third opening, and each third opening covers two third sub-pixels and a distance between two third sub-pixels, which are adjacently arranged in the second direction, of the display panel.
In the manufacturing method of the display panel, the mask assembly, the display device and the display panel, the arrangement of the central connecting lines of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel unit is triangular, and the arrangement of the first sub-pixel, the second sub-pixel and the third sub-pixel with the same number realizes Real RGB pixel arrangement, so that the resolution ratio of the display panel can be improved, and the process difficulty can be reduced. The second sub-pixels and the third sub-pixels are arranged along the first direction, so that the first sub-pixels of two adjacent pixel units in the second direction are adjacently arranged, or the second sub-pixels of two adjacent pixel units in the second direction are adjacently arranged and the third sub-pixels are adjacently arranged, the aperture opening ratio of the sub-pixels is favorably improved, and the display life of the display panel is prolonged. And the three sub-pixels in the pixel unit are partially same with the corresponding adjacent sub-pixels in the second direction in the distance, and are partially different in arrangement, so that the virtual luminous centers are uniformly distributed in the vertical direction and are positioned on a horizontal line at the transverse virtual center, the granular sensation of the pixel unit is more uniformly displayed, and the uniformity of the displayed image quality is ensured.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a first mask according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a second mask according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a third mask according to an embodiment of the present application;
FIG. 8 is a schematic view of a pixel opening structure of a mask assembly according to an embodiment of the present disclosure;
fig. 9 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the present application.
Description of the main element symbols:
the display device comprises a display panel 10, a pixel unit 12, a first sub-pixel 122, a first side 1222, a fourth side 1224, a second sub-pixel 124, a second side 1242, a fifth side 1244, a third sub-pixel 126, a third side 1262, a first mask 20, a first substrate 22, a first opening 24, a second mask 30, a second substrate 32, a second opening 34, a third mask 40, a third substrate 42 and a third opening 44.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
With the continuous development of display technology, how to increase the resolution of a display screen becomes an important direction for research and development. The high resolution ensures a better display. The high-resolution display screen needs to correspondingly reduce the pixel size and the inter-pixel distance, has extremely high requirements on the manufacturing process, and has the problem of urgent need to solve how to improve the resolution and reduce the process difficulty.
At present, the above problems can be solved by adopting a sub-Pixel Rendering (SPR) technology in the OLED, the SPR technology can change a mode in which a Pixel is simply defined by conventional red, green and blue sub-pixels by using the difference of the resolution of human eyes to the sub-pixels of different colors, and the same Pixel resolution Rendering capability is realized by simulating with a relatively small number of sub-pixels by sharing the sub-pixels of the color insensitive to the resolution of some positions among different pixels, thereby reducing the difficulty of the manufacturing process and the manufacturing cost. However, some detailed pictures still have non-uniformity or characteristics not displayed completely by pixels.
In the related art, the Real RGB pixel structure can be adopted to solve the problems of the sub-pixel rendering pixel technology, the Real RGB pixel structure does not have a pixel borrowing relation, and the picture fineness of the Real RGB pixel structure is better than that of the sub-pixel rendering pixel under the same resolution.
At present, Real RGB pixel structures mainly comprise two types of Real SRGB pixel arrangement and Real Delta RGB pixel arrangement, single-color pixels of SRGB are in the same row and the same line, the lines and the lines are all at equal intervals, the display effect is better, but the pixel aperture ratio is low, so that the service life is short, and the use requirement is not met. Delta pixel arrangement has the characteristic of high pixel aperture ratio, but the display effect is poor.
In view of the above, referring to fig. 1 and fig. 2, the present application provides a display panel 10, the display panel 10 includes a plurality of pixel units 12 arranged in an array, each pixel unit 12 includes a first sub-pixel 122, a second sub-pixel 124 and a third sub-pixel 126, and a central connecting line of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 in the pixel unit 12 is arranged in a triangle;
the pixel units 12 are arranged along a first direction and a second direction, the second sub-pixel 124 and the third sub-pixel 126 are arranged along the first direction, the first sub-pixels 122 of two adjacent pixel units 12 in the second direction are adjacently arranged, or the second sub-pixels 124 and the third sub-pixels 126 of two adjacent pixel units 12 in the second direction are adjacently arranged;
the pitch of the two second subpixels 124 adjacently disposed in the second direction is equal to the pitch of the two third subpixels 126 adjacently disposed in the second direction, and the pitch of the two first subpixels 122 adjacently disposed in the second direction is smaller than the pitch of the two second subpixels 124 adjacently disposed in the second direction.
In the display panel 10 of the present application, the arrangement of the central connecting lines of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 in the pixel unit 12 in a triangle shape and the arrangement of the same number of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 realize Real RGB pixel arrangement, which can improve the resolution of the display panel 10 and reduce the process difficulty; the second sub-pixels 124 and the third sub-pixels 126 are arranged along the first direction, and the first sub-pixels 122 of the two adjacent pixel units 12 in the second direction are adjacently arranged, or the second sub-pixels 124 and the third sub-pixels 126 of the two adjacent pixel units 12 in the second direction are adjacently arranged, which is beneficial to improving the aperture opening ratio of the sub-pixels, thereby improving the display life of the display panel 10. And the three sub-pixels in the pixel unit 12 have the same distance part with the corresponding adjacent sub-pixels in the second direction, and are partially arranged differently, so that the virtual luminous centers are more uniformly distributed in the vertical direction and are positioned on a horizontal line at the horizontal virtual center, the granular sensation display of the pixel unit 12 is more uniform, and the uniformity of the display image quality is ensured.
Specifically, the display panel 10 may be an Organic Light-Emitting Diode (OLED) display panel 10. The display panel 10 uses organic light emitting diodes for display, can realize autonomous light emission, can realize customized drive for the pixel unit 12, can realize a display function without a backlight, and has the advantages of light weight, low energy consumption, high brightness, good luminous efficiency and the like.
It should be noted that the pixel unit 12 refers to the smallest repeating unit in the display panel 10 that can achieve the same light emitting effect and function. The plurality of pixel units 12 are arranged in an array, which means that the centers of the plurality of pixel units 12 are arranged alternately in at least a first direction and a second direction to form an array. In particular, the plurality of pixel units 12 may be arranged in an array by being staggered along first and second directions perpendicular to each other, in which case, the first and second directions perpendicular to each other may be a row extending direction and a column extending direction of the pixel units 12, the pixel units 12 arranged along the row extending direction form a pixel row, and the pixel units 12 arranged along the column extending direction form a pixel column. The rows and columns of the pixel units 12 in the display panel 10 are opposite.
Referring to fig. 1, 3 or 4, in some embodiments, the first direction may be a row direction, i.e., a row extending direction of the pixel unit 12, and the second direction may be a column direction, i.e., a column extending direction of the pixel unit 12. Referring to fig. 2, in some embodiments, the first direction may also be a column direction, i.e., a column extending direction of the pixel unit 12, and the second direction may be a row direction, i.e., a row extending direction of the pixel unit 12.
It should be further noted that the second sub-pixel 124 and the third sub-pixel 126 are disposed along the first direction, which means that the geometric centers of the second sub-pixel 124 and the third sub-pixel 126 are arranged along the first direction.
The first sub-pixel 122 of each pixel unit 12 is located at one side of a connection line between the second sub-pixel 124 and the third sub-pixel 126.
The pitch between the sub-pixels refers to a minimum distance between edges of the sub-pixels that are close to each other, and the distance is smaller than a distance between geometric centers of the two sub-pixels. The pitch of two second sub-pixels 124 adjacently disposed needs to be greater than or equal to the process limit distance. The pitch of the two third sub-pixels 126 adjacently disposed in the second direction needs to be greater than or equal to the process limit distance, and the pitch of the two first sub-pixels 122 adjacently disposed in the second direction needs to be greater than or equal to the process limit distance. In this way, the display panel 10 can reduce the pitches between the adjacent first sub-pixels 122, the adjacent second sub-pixels 124 and the adjacent third sub-pixels 126 in the second direction to the maximum, so that under the condition of the same resolution, the pixel opening area can be increased between the adjacent first sub-pixels 122, the adjacent second sub-pixels 124 and the adjacent third sub-pixels 126 in the second direction, the driving current of the display device is reduced, and the service life of the display device is further increased.
Referring to fig. 1, in some embodiments, a pitch L2 between the second sub-pixel 124 in the pixel unit 12 and the corresponding adjacent second sub-pixel 124 in the second direction is equal to a pitch L3 between the third sub-pixel 126 in the pixel unit 12 and the corresponding adjacent third sub-pixel 126 in the second direction, and a pitch L1 between the first sub-pixel 122 in the pixel unit 12 and the corresponding adjacent first sub-pixel 122 in the second direction is smaller than a pitch L2 between the second sub-pixel 124 in the pixel unit 12 and the corresponding adjacent second sub-pixel 124 in the second direction.
With further reference to fig. 1-4, in some embodiments, a center of a triangle formed by connecting centers of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 is a light emitting center of the pixel unit 12. The light emission center of the pixel unit 12 may be located at the center position of the pixel unit 12.
Thus, the distances from the geometric center of each sub-pixel in the pixel unit 12 to the light-emitting center of the light-emitting unit of the pixel unit 12 are the same, so that the virtual light-emitting centers of the pixel unit 12 are ensured to be uniform, thereby effectively improving the display graininess and making the image quality more uniform.
In some embodiments, the light emission centers of the pixel units 12 are disposed on the same line in the first direction. The light emitting centers of the pixel light emitting units are arranged on the same straight line along the second direction.
Specifically, the centers of the pixel units 12, the first sub-pixels 122, the second sub-pixels 124 and the third sub-pixels 126 in each row of pixel rows are connected to form a triangle, and the centers of the triangle are arranged on the same straight line along the first direction. In the pixel unit 12 in the pixel column of each row, the centers of the triangle formed by connecting the centers of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 are arranged on the same straight line along the second direction.
In some embodiments, the light emitting color of the first sub-pixel 122, the light emitting color of the second sub-pixel 124, and the light emitting color of the third sub-pixel 126 are different from each other. For example, in the present embodiment, the first sub-pixel 122 is a blue sub-pixel, the second sub-pixel 124 is a red sub-pixel, and the third sub-pixel 126 is a green sub-pixel. That is, the Real RGB pixel arrangement is adopted in the present application.
The light emitting area of the first sub-pixel 122 is larger than that of the third sub-pixel 126, and the light emitting area of the third sub-pixel 126 is larger than that of the second sub-pixel 124. That is, the light emitting area of the blue sub-pixel is larger than that of the green sub-pixel, and the light emitting area of the green sub-pixel is larger than that of the red sub-pixel. The specific ratio of the light emitting areas of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 is not limited, and may be set according to actual conditions. For example, the light emitting areas of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 may be 5: 2: 4 or 5: 2: 3 or 6: 3: 5, and the like.
It will be appreciated that for an organic light emitting diode display device, the blue sub-pixel area may be larger than the red and green sub-pixel areas because the blue light emitting material is generally the least efficient in emitting light and has a relatively short lifetime compared to the red and green. Furthermore, since the human eye is more sensitive to red and the red luminescent material is most efficient, the red sub-pixel area can be made minimal.
Of course, in other embodiments, the correspondence relationship between the emission colors of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 may not be limited to the above-discussed embodiments, and may be changed according to actual needs, and is not limited in detail here.
In some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are each quadrilateral or pentagonal. For example, referring to fig. 1-2, in some examples, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are all quadrilateral, and referring to fig. 3, in some examples, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are all pentagonal. Therefore, the aperture ratio of the sub-pixels can be optimized, and the service life of the display panel 10 can be prolonged.
Of course, in other embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are not limited to the shapes discussed above, and a hexagon, an octagon, or even more polygons may be selected according to actual needs, and are not particularly limited herein.
Further, the size of the first sub-pixel 122 in the first direction is larger than the size in the second direction, and the size of the first sub-pixel 122 near the third sub-pixel 126 is smaller than the size near the second sub-pixel 122 in the second direction.
The shape and area of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 may be the same as the shape and area of the light emitting layer exposed from the pixel defining layer corresponding opening region.
In some embodiments, the first subpixel 122, the second subpixel 124, and the third subpixel 126 each include at least one right angle. For example, referring to fig. 1, in some examples, each of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 includes three right angles, the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 may be obtained by removing one right angle from a rectangle, and the removed right angles of the first sub-pixel 122 and the third sub-pixel 126 are opposite angles in one pixel unit 12. For another example, referring to fig. 3, in some examples, the first sub-pixel 122 and the second sub-pixel 124 include two right angles, and the third sub-pixel 126 includes one right angle. The first subpixel 122 and the second subpixel 124 are formed by removing two right angles from a rectangle, the third subpixel 126 is formed by removing three right angles from a rectangle, and the right angles removed by the third subpixel 126 correspond to the right angles removed by the first subpixel 122 and the second subpixel 124, respectively.
In some embodiments, the right-angled sides of first subpixel 122, second subpixel 124, and third subpixel 126 are each disposed in a direction parallel to the first direction and the second direction, respectively.
Referring to fig. 1 or fig. 2, in some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 include two obtuse angles.
In some embodiments, the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 include at least one acute angle and one obtuse angle. For example, referring to fig. 3, in some examples, the first sub-pixel 122 and the second sub-pixel 124 each include an acute angle and an obtuse angle, and the third sub-pixel 126 includes two obtuse angles and an acute angle.
Referring to fig. 4, in some embodiments, the corners of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 are rounded. In this way, the problem of color separation of the pixel units 12 is effectively improved, so that the display effect of the display panel 10 can be further improved.
With further reference to fig. 1, in some embodiments, the edge of the first sub-pixel 122 is parallel to the opposite edges of the adjacent first, second and third sub-pixels 122, 124 and 126, the edge of the second sub-pixel 124 is parallel to the opposite edges of the adjacent first, second and third sub-pixels 122, 124 and 126, and the edge of the third sub-pixel 126 is parallel to the opposite edges of the adjacent first, second and third sub-pixels 122, 124 and 126.
In this way, the distances among the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 in the pixel unit 12 and between the adjacent pixel units 12 can be set to be minimum, so that the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 in the pixel units 12 and between the adjacent pixel units 12 can be tightly matched, thereby increasing the number of pixel units in a unit area and being beneficial to improving the resolution of the display panel 10.
In some embodiments, two pixel units 12 adjacent to each other in the second direction have mirror symmetry with respect to a perpendicular bisector of a central connecting line of two first sub-pixels 122 adjacently disposed in the second direction.
In some embodiments, two pixel units 12 adjacent to each other in the second direction have mirror symmetry with respect to a perpendicular bisector of a central connecting line of two second sub-pixels 124 adjacently disposed in the second direction.
In some embodiments, two pixel units 12 adjacent to each other in the second direction have mirror symmetry with respect to a perpendicular bisector of a central connecting line of two third sub-pixels 126 adjacently disposed in the second direction.
It should be noted that the perpendicular bisector of the line connecting the centers of the two first sub-pixels 122 in the second direction is located between the perpendicular bisector of the line connecting the centers of the two second sub-pixels 124 and the perpendicular bisector of the line connecting the centers of the two third sub-pixels 126.
In some embodiments, the first sub-pixel 122 of the pixel unit 12 is at a predetermined angle with respect to the first direction relative to the side of the second sub-pixel 124.
The preset angle may be an acute angle or an obtuse angle, and when the preset angle is an acute angle, the preset angle may range from 30 ° to 60 °, for example, the preset angle may be 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, or 60 °. When the preset angle is an obtuse angle, the preset angle may range between 120 ° and 150 °, for example, the preset angle may be 120 °, 125 °, 130 °, 135 °, 140 °, 145 °, or 150 °. Of course, it is understood that the preset angle value is only used for illustration, and the specific value of the preset angle value is not limited, for example, in other embodiments, the preset angle may be other acute angle values or obtuse angle values.
Further, in some embodiments, the predetermined angle is 30 ° or 150 °. For example, in some embodiments, the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 is at an angle of 30 ° with respect to the first direction, and in other embodiments, the side of the first sub-pixel 122 relative to the second sub-pixel 124 in the pixel unit 12 is at an angle of 150 ° with respect to the first direction. It can be understood that, when the included angle between the side edge of the first sub-pixel 122 in the pixel unit 12 relative to the second sub-pixel 124 and the first direction is 30 ° or 150 °, the first sub-pixel 122 and the second sub-pixel 124 in the pixel unit 12 are matched, which is beneficial to improving the resolution of the display panel 10.
With further reference to fig. 1, in some embodiments, the first sub-pixel 122 includes a first side 1222 parallel to the first direction, the first sides 1222 of two adjacent first sub-pixels 122 in the second direction are disposed in parallel, and a distance L1 between the first sub-pixel 122 and the corresponding adjacent first sub-pixel 122 in the second direction in the pixel unit 12 is equal to a distance between the first sides 1222 of the two adjacent first sub-pixels 122.
In some embodiments, the second sub-pixel 124 includes a second side 1242 parallel to the first direction, the second sides 1242 of two second sub-pixels 124 adjacently disposed in the second direction are disposed in parallel, and the pitch L2 between the second sub-pixel 124 and the corresponding adjacent second sub-pixel 124 in the second direction in the pixel unit 12 is equal to the pitch of the second sides 1242 of the two second sub-pixels 124 adjacently disposed.
In some embodiments, the third sub-pixel 126 includes a third side 1262 parallel to the first direction, the third sides 1262 of two third sub-pixels 126 adjacently disposed in the second direction are disposed in parallel, and the distance L3 between the third sub-pixel 126 and the corresponding adjacent third sub-pixel 126 in the pixel unit 12 in the second direction is the distance between the third sides of the two adjacent third sub-pixels 126.
In some embodiments, the first sub-pixel 122 includes a fourth side 1224 opposite to the second sub-pixel 124 in the neighboring pixel unit 12, the second sub-pixel 124 includes a fifth side 1244 opposite to the first sub-pixel 122 in the neighboring pixel unit 12, and the fourth side 1224 and the fifth side 1244 are parallel to the second direction.
Referring to fig. 5 to 8, the present embodiment further provides a mask assembly (not shown in the drawings) for manufacturing the display panel 10 of the foregoing embodiment, where the mask assembly includes a first mask plate 20, a second mask plate 30, and a third mask plate 40. The first mask 20 includes a first substrate 22 and at least one first opening 24 opened on a third substrate 42, each first opening 24 covers two first sub-pixels 122 adjacently disposed on the display panel 10 in the second direction and a distance between the two first sub-pixels 122, the second mask 30 includes a second substrate 32 and at least one second opening 34 opened on the third substrate 42, each second opening 34 covers two second sub-pixels 124 adjacently disposed on the display panel 10 in the second direction and a distance between the two second sub-pixels 124, the third mask 40 includes a third substrate 42 and at least one third opening 44 opened on the third substrate 42, and each third opening 44 covers a distance between two third sub-pixels 126 adjacently disposed on the display panel 10 in the second direction and two third sub-pixels 126.
The mask assembly can be manufactured to form a display panel 10, each opening of the mask corresponds to two adjacent sub-pixels, the product yield can be improved, three sub-pixels in the display panel 10 jointly form an independent pixel unit 12, the central connecting lines of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 are triangular in the pixel unit 12, the number of the first sub-pixel 122, the number of the second sub-pixel 124 and the number of the third sub-pixel 126 are the same, Real RGB pixel arrangement is realized, the resolution of the display panel 10 can be improved, the process difficulty can be reduced, the opening ratio of the sub-pixels is facilitated, the display life of the display panel 10 is prolonged, in addition, the virtual light emitting centers of the pixel units 12 are uniformly distributed in the vertical direction and are on the same horizontal line in the horizontal virtual center, and the granular sensation display of the pixel units 12 is more uniform, the display image quality is ensured to be uniform.
The shape and area of the first opening 24 are substantially the same as those of two first sub-pixels 122 adjacently disposed in the second direction when combined. The shape and area of the second opening 34 are substantially the same as those of two second sub-pixels 124 adjacently disposed in the second direction after being combined. The shape and area of the third opening 44 are substantially the same as those of two third sub-pixels 126 adjacently disposed in the second direction after being combined.
In some embodiments, the first substrate 22, the second substrate 32, and the third substrate 42 may be made of a metal material.
In this way, the first Mask 20, the second Mask 30, and the third Mask 40 may be high precision Metal masks (FMM), and may be applied to an evaporation process, and the corresponding display panel 10 is formed by evaporating organic light emitting materials corresponding to pixel patterns.
In some embodiments, the Mask assembly further comprises a Cover Mask (Cover Mask), a support Mask (Howling Mask), and an alignment Mask (Align Mask). The first Mask plate 20, the second Mask plate 30, and the third Mask plate 40 may be combined with a cover Mask, a support Mask, and an alignment Mask to form a Mask Frame Assembly (MFA).
Therefore, the combined mask integrated frames can be respectively placed into corresponding evaporation chambers to evaporate the organic light-emitting materials corresponding to the sub-pixels. Specifically, a pattern of one sub-pixel may be formed each time vapor deposition is performed, another sub-pixel may be formed after the formation of the pattern of one sub-pixel, and the display panel 10 according to the embodiment of the present invention is obtained after the formation of the patterns of three sub-pixels.
In some embodiments, in order to reduce the difficulty of evaporation, the FMM openings for evaporation of adjacent sub-pixels are made in 2in1 manner, that is, each FMM pixel opening corresponds to 2 adjacent sub-pixels, thereby improving the yield of products.
It should be noted that the adjacent sub-pixels refer to the same sub-pixels in the adjacent pixel units 12, for example, one FMM pixel opening corresponds to two adjacent first sub-pixels 122, one FMM pixel opening corresponds to two adjacent second sub-pixels 124, and one FMM pixel opening corresponds to two adjacent third sub-pixels 126.
Therefore, under the condition of adopting the same PDL Gap, the pixel aperture ratio is greatly improved, and the product requirement is more easily met. For example, in the same PDL Gap, when the aperture ratios of the first sub-pixel 122, the second sub-pixel 124, and the third sub-pixel 126 are the same, the aperture ratio of the pixels arranged by the Real RGB pixel may reach 18% to 20%, while the aperture ratio of the pixels arranged by the Delta RGB pixel is about 14%, and the aperture ratio of the pixels arranged by the Real-SRGB pixel is about 6%. Therefore, the pixel aperture opening ratio of the sub-pixels under the high resolution is obviously improved, and the service life of the display panel is prolonged.
Of course, in other embodiments, the display panel 10 is not limited to being formed by an evaporation process, and the display panel 10 may be formed by a photolithography process, an etching process, or the like as needed.
With further reference to fig. 8, in some embodiments, the first opening 24, the second opening 34, and the third opening 44 are all hexagonally arranged.
In some embodiments, the stretching direction of the mask assembly corresponds to the second direction in the display panel 10. Therefore, the stretching direction of the mask assembly is the long edge direction of the pixels, the stretching of the mask assembly is facilitated, and the stretching precision is ensured.
The application also provides a display device. The display device includes the display panel 10 of the above embodiment.
In the display device of the present application, the central connecting line of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 of the display panel 10 passing through the pixel unit 12 is arranged in a triangle, and the number of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 126 is the same, so that Real RGB pixel arrangement is realized, which can improve the resolution of the display panel 10 and reduce the process difficulty. The second sub-pixels 124 and the third sub-pixels 126 are arranged along the first direction, so that the first sub-pixels 122 of the two adjacent pixel units 12 in the second direction are adjacently arranged, or the second sub-pixels 124 and the third sub-pixels 126 of the two adjacent pixel units 12 in the second direction are adjacently arranged, which is beneficial to the aperture ratio of the sub-pixels and the improvement of the display life of the display panel 10. In addition, the virtual luminous centers are distributed more uniformly in the vertical direction and are positioned on a horizontal line in the horizontal virtual center, so that the granular sensation of the pixel unit 12 is displayed more uniformly, and the uniformity of the displayed image quality is ensured.
For example, the display device may be any of various types of computer system devices that are mobile or portable and perform wireless communications. Specifically, the display device may be a mobile phone or a smart phone (e.g., an iPhone-based phone, an Android-based phone), a Portable game device (e.g., Nintendo DS, PlayStation Portable, game Advance, iPhone), a tablet computer, a Portable internet device, a data storage device, etc., and the display device may also be other wearable devices (e.g., a smart band, a smart watch, AR glasses, VR glasses, etc.).
In some cases, the display device may perform a variety of functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending telephone calls). If desired, the display device may be a portable device such as a cellular telephone, media player, other handheld device, wrist watch device, earpiece device, or other compact portable device.
Referring to fig. 9, the present application further provides a manufacturing method of a display panel 10, for manufacturing the display panel 10 of the foregoing embodiment, the manufacturing method includes:
01, forming first sub-pixels of the display panel by using a first mask plate, wherein the first mask plate comprises at least one first opening, and each first opening covers two first sub-pixels which are adjacently arranged on the display panel in a second direction and a distance between the two first sub-pixels;
02, forming second sub-pixels of the display panel by using a second mask plate, wherein the second mask plate comprises at least one second opening, and each second opening covers two second sub-pixels which are adjacently arranged on the display panel in a second direction and a distance between the two second sub-pixels;
and 03, forming third sub-pixels of the display panel by using a third mask, wherein the third mask comprises at least one third opening, and each third opening covers two third sub-pixels and a distance between the two third sub-pixels, which are adjacently arranged in the second direction, of the display panel.
In the manufacturing method of the embodiment of the application, each opening of the mask corresponds to two adjacent sub-pixels, so that the product yield can be improved, three sub-pixels jointly form an independent pixel unit 12, the central connecting lines of the first sub-pixel 122, the second sub-pixel 124 and the third sub-pixel 14 are triangular in the pixel unit 12, the number of the first sub-pixel 122, the number of the second sub-pixel 124 and the number of the third sub-pixels 14 are the same, Real RGB pixel arrangement is realized, the resolution of the display panel 10 can be improved, and the process difficulty can be reduced. The second sub-pixels 124 and the third sub-pixels 126 are arranged along the first direction, and the two adjacent pixel units 12 in the second direction are in mirror symmetry, so that the first sub-pixels 122 of the two adjacent pixel units 12 in the second direction are adjacently arranged, or the second sub-pixels 124 and the third sub-pixels 126 of the two adjacent pixel units 12 in the second direction are adjacently arranged, which is beneficial to the aperture ratio of the sub-pixels and the improvement of the display life of the display panel. In addition, the virtual luminous centers of the pixel units are uniformly distributed in the vertical direction and are positioned on the same horizontal line at the horizontal virtual center, so that the granular sensation display of the pixel units is more uniform, and the uniformity of the display image quality is ensured.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (22)
1. A display panel is characterized by comprising a plurality of pixel units arranged in an array, wherein each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and the central connecting line of the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel unit is arranged in a triangle;
the pixel units are arranged along a first direction and a second direction, the second sub-pixels and the third sub-pixels are arranged along the first direction, the first sub-pixels of two adjacent pixel units in the second direction are adjacently arranged, or the second sub-pixels of two adjacent pixel units in the second direction are adjacently arranged and the third sub-pixels are adjacently arranged;
the three sub-pixels in the pixel unit are partially same with and partially different from the pitches of the corresponding adjacent sub-pixels in the second direction.
2. The display panel according to claim 1, wherein a center of a triangle formed by connecting centers of the first sub-pixel, the second sub-pixel and the third sub-pixel is a light emitting center of the pixel unit.
3. The display panel according to claim 2, wherein light emission centers of the pixel units are arranged on a same straight line in the first direction.
4. The display panel according to claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel each have a quadrilateral shape or a pentagonal shape.
5. The display panel of claim 4, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel each comprise at least one right angle.
6. The display panel according to claim 5, wherein the right-angled sides of the first sub-pixel, the second sub-pixel, and the third sub-pixel are each disposed in a direction parallel to the first direction and the second direction, respectively.
7. The display panel of claim 4, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel have a rounded corner design.
8. The display panel according to claim 4, wherein the side of the first sub-pixel is parallel to the opposite side of the adjacent first, second and third sub-pixels, the side of the second sub-pixel is parallel to the opposite side of the adjacent first, second and third sub-pixels, and the side of the third sub-pixel is parallel to the opposite side of the adjacent first, second and third sub-pixels.
9. The display panel according to claim 1, wherein the emission color of the first sub-pixel, the emission color of the second sub-pixel, and the emission color of the third sub-pixel are different from each other.
10. The display panel of claim 9, wherein the first sub-pixel is a blue sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a green sub-pixel.
11. The display panel according to claim 1, wherein two of the pixel units adjacent to each other in the second direction have mirror symmetry with respect to a perpendicular bisector of a connecting line between centers of two of the first sub-pixels adjacently disposed in the second direction, or have mirror symmetry with respect to a perpendicular bisector of a connecting line between centers of two of the second sub-pixels adjacently disposed in the second direction, or have mirror symmetry with respect to a perpendicular bisector of a connecting line between centers of two of the third sub-pixels adjacently disposed in the second direction.
12. The display panel of claim 11, wherein the first sub-pixel of the pixel unit forms a predetermined angle with the first direction relative to a side of the second sub-pixel.
13. The display panel according to claim 1, wherein a pitch of the second sub-pixel in the pixel unit in the second direction with the corresponding adjacent second sub-pixel is equal to a pitch of the third sub-pixel in the pixel unit in the second direction with the corresponding adjacent third sub-pixel, and a pitch of the first sub-pixel in the pixel unit in the second direction with the corresponding adjacent first sub-pixel is smaller than a pitch of the second sub-pixel in the pixel unit in the second direction with the corresponding adjacent second sub-pixel.
14. The display panel according to claim 13, wherein the first sub-pixel comprises a first side parallel to the first direction, the first sides of two adjacent first sub-pixels in the second direction are arranged in parallel, and a pitch of the first sub-pixel in the pixel unit in the second direction from the corresponding adjacent first sub-pixel is equal to a pitch of the first sides of two adjacent first sub-pixels.
15. The display panel according to claim 13, wherein the second sub-pixel comprises a second side edge parallel to the first direction, the second side edges of two adjacent second sub-pixels in the second direction are oppositely arranged in parallel, and the pitch of the second sub-pixel in the pixel unit with the corresponding adjacent second sub-pixel in the second direction is equal to the pitch of the second side edges of two adjacent second sub-pixels.
16. The display panel according to claim 13, wherein the third sub-pixel comprises a third side parallel to the first direction, the third sides of two adjacent third sub-pixels in the second direction are arranged in parallel, and a distance between the third sub-pixel and the corresponding adjacent third sub-pixel in the second direction in the pixel unit is equal to a distance between the third sides of two adjacent third sub-pixels.
17. The display panel of claim 13, wherein the first sub-pixel comprises a fourth side opposite to the second sub-pixel in an adjacent pixel unit, wherein the second sub-pixel comprises a fifth side opposite to the first sub-pixel in an adjacent pixel unit, and wherein the fourth side and the fifth side are parallel to the second direction.
18. The display panel of claim 1, wherein the display panel is an OLED display panel.
19. A mask assembly for fabricating the display panel of any one of claims 1 to 18, wherein the mask assembly comprises:
the first mask plate comprises a first substrate and at least one first opening arranged on the third substrate, and each first opening covers two first sub-pixels and a distance between the two first sub-pixels, which are adjacently arranged on the display panel in the second direction, of the display panel;
the second mask plate comprises a second substrate and at least one second opening arranged on the third substrate, and each second opening covers two second sub-pixels which are adjacently arranged on the display panel in the second direction and a distance between the two second sub-pixels;
and the third mask plate comprises a third substrate and at least one third opening arranged on the third substrate, and each third opening covers the display panel, two third sub-pixels and two third sub-pixels are adjacently arranged in the second direction, and the distance between the third sub-pixels is equal to the distance between the third sub-pixels.
20. A mask assembly according to claim 19, wherein a stretching direction of the mask assembly corresponds to the second direction in the display panel.
21. A mask assembly according to claim 19, wherein the first opening, the second opening and the third opening are all hexagonally arranged.
22. A display device characterized by comprising the display panel according to any one of claims 1 to 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210006069.XA CN114361232A (en) | 2022-01-05 | 2022-01-05 | Display panel, mask assembly and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210006069.XA CN114361232A (en) | 2022-01-05 | 2022-01-05 | Display panel, mask assembly and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115666186A (en) * | 2022-12-09 | 2023-01-31 | 惠科股份有限公司 | Pixel structure and display panel |
| CN116018027A (en) * | 2023-02-22 | 2023-04-25 | 惠科股份有限公司 | Pixel arrangement structure, display panel and mask plate assembly |
| WO2024036668A1 (en) * | 2022-08-16 | 2024-02-22 | 武汉华星光电半导体显示技术有限公司 | Pixel arrangement structure and display panel |
-
2022
- 2022-01-05 CN CN202210006069.XA patent/CN114361232A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036668A1 (en) * | 2022-08-16 | 2024-02-22 | 武汉华星光电半导体显示技术有限公司 | Pixel arrangement structure and display panel |
| CN115666186A (en) * | 2022-12-09 | 2023-01-31 | 惠科股份有限公司 | Pixel structure and display panel |
| CN116018027A (en) * | 2023-02-22 | 2023-04-25 | 惠科股份有限公司 | Pixel arrangement structure, display panel and mask plate assembly |
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