Pixel arrangement structure, mask plate and display panel

Abstract

This invention discloses a pixel arrangement structure, a mask, and a display panel. The pixel arrangement structure includes a first pixel unit and a second pixel unit. Both the first and second pixel units are triangular and include a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors. The first and second pixel units have a first side extending along a first direction. Along a second direction, the first sides of adjacent first and second pixel units are at least partially connected. Two second sub-pixels located within adjacent first and second pixel units are arranged adjacently, and two third sub-pixels located within adjacent first and second pixel units are arranged adjacently. No gap is required when depositing adjacent second and third sub-pixels, achieving high-resolution display while maintaining the aperture ratio.

Description

Technical Field

[0001] This invention belongs to the field of electronic product technology, and particularly relates to a pixel arrangement structure, a mask, and a display panel. Background Technology

[0002] With the advancement of technology, digital display devices such as smartphones and tablets have been widely used, and the display panel is an indispensable human-computer interaction interface in these devices. Organic Light Emitting Diode (OLED) display panels, for example, have advantages such as self-illumination, energy saving, flexibility, and good adaptability. Furthermore, display devices using OLEDs do not require a backlight and feature fast response times and excellent display quality, attracting user attention and being widely used in smartphones, tablets, and other terminal products.

[0003] Each pixel in an OLED display panel typically contains three sub-pixels (red, blue, and green). The higher the resolution, the more pixels are required. During vapor deposition, a certain margin needs to be left around each sub-pixel to avoid color mixing. While increasing the resolution, the aperture ratio will decrease. Therefore, based on the existing pixel arrangement, it is difficult to achieve high-resolution, high-aperture ratio, and high-quality image display at the same time.

[0004] Therefore, there is an urgent need for a new pixel arrangement structure, mask, and display panel. Summary of the Invention

[0005] This invention provides a pixel arrangement structure, a mask, and a display panel. No gap needs to be reserved when depositing adjacent second and third sub-pixels, which can achieve high-resolution display while ensuring aperture ratio.

[0006] One embodiment of the present invention provides a pixel arrangement structure, including a first pixel unit and a second pixel unit. The first pixel unit and the second pixel unit are both arranged along a first direction and alternately arranged along a second direction, wherein the first direction and the second direction intersect. The first pixel unit and the second pixel unit are both triangular in shape, and each of the first pixel unit and the second pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors. The first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively arranged at one corner of the first pixel unit and the second pixel unit. The first pixel unit and the second pixel unit have a first side extending along the first direction. Along the second direction, the first sides of adjacent first pixel units and second pixel units are at least partially connected. Two second sub-pixels located in adjacent first pixel units and second pixel units are arranged adjacently, and two third sub-pixels located in adjacent first pixel units and second pixel units are arranged adjacently.

[0007] According to one aspect of the present invention, both the first pixel unit and the second pixel unit are isosceles triangles, and the apex angles of the first pixel unit and the second pixel unit point in opposite directions; the first sub-pixel is configured corresponding to the apex angles of the first pixel unit and the second pixel unit, and the second sub-pixel and the third sub-pixel are configured corresponding to the base angles of the first pixel unit and the second pixel unit, respectively.

[0008] According to one aspect of the invention, within the first pixel unit and the second pixel unit, the second sub-pixel and the third sub-pixel are symmetrically distributed about the centerline of the first sub-pixel.

[0009] According to one aspect of the present invention, in the first pixel unit and the second pixel unit, the number of the first sub-pixel, the second sub-pixel and the third sub-pixel are 1, 1 and 1 respectively; the first sub-pixel is kite-shaped, the second sub-pixel and the third sub-pixel are both quadrilaterals, the vertex corner of the first sub-pixel is set to correspond to the vertex corner of the first pixel unit and the second pixel unit, and one side corner of the second sub-pixel and the third sub-pixel are set to correspond to the bottom corner of the first pixel unit and the second pixel unit respectively;

[0010] Preferably, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel; preferably, the light-emitting area of ​​the third sub-pixel is greater than the light-emitting area of ​​the first sub-pixel and the second sub-pixel.

[0011] According to one aspect of the invention, in the first direction, the first pixel unit and the second pixel unit are alternately arranged, and the sides of the first pixel unit and the second pixel unit are connected; in the second direction, the first pixel unit and the second pixel unit are mirror symmetrical.

[0012] According to one aspect of the invention, the device further includes a third pixel unit and a fourth pixel unit, wherein the first pixel unit and the third pixel unit are alternately arranged along the first direction, and the first pixel unit and the third pixel unit are mirror images of each other; the second pixel unit and the fourth pixel unit are alternately arranged, and the second pixel unit and the fourth pixel unit are mirror images of each other; each of the third pixel unit and the fourth pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors; the second sub-pixel and the third sub-pixel in the first pixel unit and the fourth pixel unit are arranged in opposite positions, and the second sub-pixel and the third sub-pixel in the second pixel unit and the third pixel unit are arranged in opposite positions.

[0013] According to one aspect of the invention, adjacent first pixel units and second pixel units in the second direction are offset by a predetermined distance along the first direction, the predetermined distance being equal to half the total length of the first pixel unit in the first direction; and / or, adjacent third pixel units and fourth pixel units in the second direction are offset by a predetermined distance along the first direction, the predetermined distance being equal to half the total length of the third pixel unit in the first direction.

[0014] Another aspect of the present invention provides a mask assembly for fabricating the pixel arrangement structure described in any of the above embodiments.

[0015] According to another aspect of the invention, the mask assembly includes: a first sub-pixel mask having a first sub-pixel opening; a second sub-pixel mask having a second sub-pixel opening; and a third sub-pixel mask having a third sub-pixel opening; wherein the second sub-pixel opening and the third sub-pixel opening are rotationally symmetric to each other.

[0016] Another aspect of the present invention provides a display panel, including the pixel arrangement structure as described in any of the above embodiments.

[0017] Compared with the prior art, the pixel arrangement structure provided in this embodiment of the invention includes a first pixel unit and a second pixel unit. Along the second direction, the first edges of adjacent first pixel units and second pixel units are at least partially connected, so that two second sub-pixels located in mutually adjacent first pixel units and second pixel units are arranged adjacently. That is, the second sub-pixel located in the first pixel unit can share a evaporation opening with the second sub-pixel in the adjacent second pixel unit for evaporation. Similarly, the third sub-pixel located in the first pixel unit can share a evaporation opening with the third sub-pixel in the adjacent second pixel unit for evaporation. This can effectively increase the opening area of ​​the evaporation mask and reduce the manufacturing difficulty of the evaporation mask process. Moreover, no gap needs to be reserved when evaporating adjacent second and third sub-pixels, and high-resolution display can be achieved while ensuring the aperture ratio. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the pixel arrangement structure provided in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the first pixel unit and the second pixel unit provided in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the pixel arrangement structure provided in another embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first pixel unit and the second pixel unit provided in another embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first sub-pixel mask provided in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second sub-pixel mask provided in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the third sub-pixel mask provided in one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the first sub-pixel mask provided in another embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the second sub-pixel mask provided in another embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the third sub-pixel mask provided in another embodiment of the present invention.

[0029] In the attached image:

[0030] D1 - First pixel unit; D2 - Second pixel unit; D3 - Third pixel unit; D4 - Fourth pixel unit; P1 - First sub-pixel; P2 - Second sub-pixel; P3 - Third sub-pixel; b1 - First side; Y1 - First sub-pixel mask; Y2 - Second sub-pixel mask; Y3 - Third sub-pixel mask; K1 - First sub-pixel opening; K2 - Second sub-pixel opening; K3 - Third sub-pixel opening; X - First direction; Y - Second direction. Detailed Implementation

[0031] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0033] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0034] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0035] The following will be illustrated with the accompanying drawings. Figures 1 to 10 Various embodiments of the pixel arrangement structure, mask, and display panel are described.

[0036] The display panel provided in this embodiment of the invention can be an organic light-emitting diode (OLED) display panel, a liquid crystal panel, or a micro-flat panel (Micro-OLED or Micro-LED), etc. The following embodiments will use an OLED display panel as an example for illustration.

[0037] Please see Figures 1 to 2 , Figure 1 This is a schematic diagram of the pixel arrangement structure provided in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first pixel unit and the second pixel unit provided in one embodiment of the present invention.

[0038] An embodiment of the present invention provides a pixel arrangement structure, including a first pixel unit D1 and a second pixel unit D2. The first pixel unit D1 and the second pixel unit D2 are both arranged along a first direction X and alternately arranged along a second direction Y, with the first direction X and the second direction Y intersecting. The first pixel unit D1 and the second pixel unit D2 are both triangular, and each of the first pixel unit D1 and the second pixel unit D2 includes a first sub-pixel P1, a second sub-pixel P2 and a third sub-pixel P3 of different colors. The first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 are respectively arranged at one corner of the first pixel unit D1 and the second pixel unit D2.

[0039] The first pixel unit D1 and the second pixel unit D2 have a first side b1 extending along the first direction X. Along the second direction Y, the first sides b1 of adjacent first pixel units D1 and second pixel units D2 are at least partially connected. Two second sub-pixels P2 located in adjacent first pixel units D1 and second pixel units D2 are arranged adjacently. Two third sub-pixels P3 located in adjacent first pixel units D1 and second pixel units D2 are arranged adjacently.

[0040] The pixel arrangement structure provided in this embodiment of the invention includes a first pixel unit D1 and a second pixel unit D2. Along the second direction Y, the first edges b1 of adjacent first pixel units D1 and second pixel units D2 are at least partially connected, so that two second sub-pixels P2 located in adjacent first pixel units D1 and D2 are arranged adjacently. That is, the second sub-pixel P2 in the first pixel unit D1 can share a vapor deposition opening with the second sub-pixel P2 in the adjacent second pixel unit D2 for vapor deposition. Similarly, the third sub-pixel in the first pixel unit D1 can share a vapor deposition opening with the third sub-pixel P3 in the adjacent second pixel unit D2 for vapor deposition. This effectively increases the opening area of ​​the vapor deposition mask and reduces the manufacturing difficulty of the vapor deposition mask process. Furthermore, no gap needs to be reserved when vapor-depositing adjacent second sub-pixels P2 and third sub-pixels P3, achieving high-resolution display while ensuring the aperture ratio.

[0041] In this embodiment, the pixel arrangement structure is different depending on the relative position between the first pixel unit D1 and the second pixel unit D2. Optionally, such as... Figure 2 As shown, in the second direction Y, the first side b1 of the first pixel unit D1 and the first side b1 of the second pixel unit D2 are connected one-to-one. The second sub-pixel P2 and the third sub-pixel P3 of the first pixel unit D1 are also adjacent to the second sub-pixel P2 and the third sub-pixel P3 of the same second pixel unit D2, respectively. The pixel arrangement structure formed by the above structure is as follows: Figure 1 As shown.

[0042] Or, such as Figure 4 As shown, in the second direction Y, the first side b1 of the first pixel unit D1 is simultaneously connected to the first side b1 of both second pixel units D2, and the second sub-pixel P2 of the first pixel unit D1 and the second sub-pixel P2 of the second pixel unit D2 are adjacent to each other. The third sub-pixel P3 of the first pixel unit D1 and the third sub-pixel P3 of the other second pixel unit D2 are adjacent to each other. The pixel arrangement structure formed by the above structure is as follows: Figure 3 As shown.

[0043] Please see Figures 1 to 4In some optional embodiments, the first pixel unit D1 and the second pixel unit D2 are both isosceles triangles, and the apex angles of the first pixel unit D1 and the second pixel unit D2 point in opposite directions; the first sub-pixel P1 is set to the apex angle of the first pixel unit D1 and the second pixel unit D2, and the second sub-pixel P2 and the third sub-pixel P3 are set to the bottom angles of the first pixel unit D1 and the second pixel unit D2, respectively.

[0044] In this embodiment, the first side b1 of the first pixel unit D1 is the bottom side of the first pixel unit D1, and the first side b1 of the second pixel unit D2 is the bottom side of the second pixel unit D2.

[0045] It is understandable that setting both the first pixel unit D1 and the second pixel unit D2 as isosceles triangles facilitates the regular arrangement of the first pixel unit D1 and the second pixel unit D2. In the second direction, since the first sides b1 of two adjacent first pixel units D1 and second pixel units D2 are at least partially connected, the apex directions of the first pixel unit D1 and the second pixel unit D2 are opposite. That is, one of the first pixel unit D1 and the second pixel unit D2 is placed upright, and the other is placed upside down, so that their base sides can be connected. This allows the second sub-pixel P2 and the third sub-pixel P3 located at the bottom corner of the first pixel unit D1 to be adjacent to the second sub-pixel P2 and the third sub-pixel P3 located at the bottom corner of the second pixel unit D2, respectively, which facilitates vapor deposition through a vapor deposition opening.

[0046] The setting of the first sub-pixel P1 corresponding to the apex corners of the first pixel unit D1 and the second pixel unit D2 can be understood as the first sub-pixel P1 being positioned close to the apex corners of the first pixel unit D1 and the second pixel unit D2. Simultaneously, when the first sub-pixel P1 also has a triangular or other angular shape, the angle of one corner of the first sub-pixel P1 can be equal to the angle of the apex corners of the first pixel unit D1 and the second pixel unit D2, and this corner of the first sub-pixel P1 is positioned adjacent to the apex corners of the first pixel unit D1 and the second pixel unit D2. Of course, the specific shape and position of the first sub-pixel P1 can be chosen according to actual needs and is not particularly limited.

[0047] Please see Figures 1 to 4 In some optional embodiments, within the first pixel unit D1 and the second pixel unit D2, the number of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are 1, 1, and 1, respectively. The first sub-pixel P1 is kite-shaped, and the second sub-pixel P2 and the third sub-pixel P3 are both quadrilaterals. The apex of the first sub-pixel P1 corresponds to the apex of the first pixel unit D1 and the second pixel unit D2, and one side of the second sub-pixel P2 and the third sub-pixel P3 corresponds to the bottom corner of the first pixel unit D1 and the second pixel unit D2.

[0048] In this embodiment, the kite-shaped first sub-pixel P1 has two equal opposite angles, as well as an acute angle and an obtuse angle. Since the angles of the first pixel unit D1 and the second pixel unit D2, which are isosceles triangles, are all acute angles, the apex angle of the first sub-pixel P1 refers to the acute angle between the opposite acute angle and the obtuse angle.

[0049] Both the second sub-pixel P2 and the third sub-pixel P3 are quadrilaterals. Optionally, the second sub-pixel P2 and the third sub-pixel P3 can be quadrilaterals with right angles, with the two right angles of the second sub-pixel P2 and the third sub-pixel P3 adjacent to each other and located at the base of an isosceles triangle. Of course, the second sub-pixel P2 and the third sub-pixel P3 can also be other shapes, without any special limitations.

[0050] In this embodiment, the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 can be any one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively. Optionally, the first sub-pixel P1 is a red sub-pixel, the second sub-pixel P2 is a green sub-pixel, and the third sub-pixel P3 is a blue sub-pixel.

[0051] Considering the strong light emission decay of blue sub-pixels, the light emission area of ​​the third sub-pixel P3 can be made larger than that of the first sub-pixel P1 and the second sub-pixel P2. When the light emission area of ​​the blue sub-pixels is increased, the light emission consistency of the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 can be guaranteed, the lifespan color deviation of the display panel can be improved, and the display effect of the display panel can be avoided due to the decay of blue sub-pixels.

[0052] To further improve the symmetry of the first pixel unit D1 and the second pixel unit D2, optionally, the second sub-pixel P2 and the third sub-pixel P3 are symmetrically distributed about the centerline of the first sub-pixel P1 within the first pixel unit D1 and the second pixel unit D2.

[0053] It should be noted that the second sub-pixel P2 and the third sub-pixel P3 are symmetrically distributed about the center line of the first sub-pixel P1. Specifically, the second sub-pixel P2 and the third sub-pixel P3 are mirror images of each other, with equal size and area, differing only in their orientation. Optionally, the first sub-pixel P1 can be symmetrically positioned about the center lines of the first pixel unit D1 and / or the second pixel unit D2, meaning the center lines of the first sub-pixel P1 coincide with the center lines of the first pixel unit D1 and / or the second pixel unit D2. This bisects the first sub-pixel P1 through the center lines of the first pixel unit D1 and the second pixel unit D2, improving the uniformity of the distribution of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3.

[0054] Please see Figures 1 to 2In some optional embodiments, in the first direction X, the first pixel unit D1 and the second pixel unit D2 are alternately arranged, and the sides of the first pixel unit D1 and the second pixel unit D2 are connected; in the second direction Y, the first pixel unit D1 and the second pixel unit D2 are mirror symmetrical.

[0055] It should be noted that, since the first edge b1 of the first pixel unit D1 and the second pixel unit D2 are connected in the second direction Y, when the first pixel unit D1 and the second pixel unit D2 are mirror symmetrical, that is, a first pixel unit D1 can be simultaneously adjacent to the second sub-pixel P2 and the third sub-pixel P3 of an adjacent second sub-pixel P2. Since the first sub-pixel P1 is located at the top corner of the first pixel unit D1 and the second pixel unit D2, it can avoid the second sub-pixel P2 or the third sub-pixel P3 being set in a continuous straight line in the second direction Y, and avoid the color of a certain color sub-pixel in the second direction Y to stand out, thereby avoiding the problem of color edges appearing on the display panel, such as red, green or blue.

[0056] In the second direction Y, the first pixel unit D1 and the second pixel unit D2 are mirror-symmetrical. Specifically, the first pixel unit D1 is placed upright, and the second pixel unit D2 is placed upside down, with their first edges b1 exactly overlapping and connecting. In the first direction X, the upright first pixel unit D1 and the upside-down second pixel unit D2 are connected side by side to avoid gaps between them and ensure high-resolution display.

[0057] Please see Figures 3 to 4 In another embodiment, the pixel arrangement structure provided by this invention further includes a third pixel unit D3 and a fourth pixel unit D4. Along the first direction X, the first pixel unit D1 and the third pixel unit D3 are alternately arranged, and the first pixel unit D1 and the third pixel unit D3 are mirror images of each other. The second pixel unit D2 and the fourth pixel unit D4 are alternately arranged, and the second pixel unit D2 and the fourth pixel unit D4 are mirror images of each other. The third pixel unit D3 and the fourth pixel unit D4 each include a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3 of different colors. The second sub-pixel P2 and the third sub-pixel P3 in the first pixel unit D1 and the fourth pixel unit D4 are arranged in opposite positions, and the second sub-pixel P2 and the third sub-pixel P3 in the second pixel unit D2 and the third pixel unit D3 are arranged in opposite positions.

[0058] It is understood that in this embodiment, the first pixel unit D1 and the third pixel unit D3 are arranged along the same direction. Since the first pixel unit D1 and the third pixel unit D3 are mirror images of each other, one of the first pixel unit D1 and the third pixel unit D3 can be an upright isosceles triangle and the other can be an inverted isosceles triangle. The two are alternately arranged along the first direction X, and their sides can be connected to each other to improve the resolution. At the same time, it can also improve the uniformity of the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 in the first pixel unit D1 and the third pixel unit D3 in the first direction X.

[0059] Similarly, the second pixel unit D2 and the fourth pixel unit D4 are arranged in the same direction, and the second pixel unit D2 and the fourth pixel unit D4 are mirror images of each other. Along the first direction X, the sides of the second pixel unit D2 and the fourth pixel unit D4 are connected to each other, reducing the gap and improving the uniformity of the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 in the second pixel unit D2 and the fourth pixel unit D4 in the first direction X.

[0060] The positions of the second sub-pixel P2 and the third sub-pixel P3 within the first pixel unit D1 and the fourth pixel unit D4 are reversed. For example, when the second sub-pixel P2 and the third sub-pixel P3 of the first pixel unit D1 are set to correspond to the bottom left and bottom right corners of the first pixel unit D1, respectively, the second sub-pixel P2 and the third sub-pixel P3 of the fourth pixel unit D4 are set to correspond to the bottom right and bottom left corners of the fourth pixel unit D4, respectively. Similarly, the positions of the second sub-pixel P2 and the third sub-pixel P3 within the second pixel unit D2 and the third pixel unit D3 can also be reversed to avoid the second sub-pixel P2 or the third sub-pixel P3 being set in a continuous straight line in the second direction Y, thus preventing the problem of colored edges.

[0061] To enable the second sub-pixels P2 and P3 of the first pixel unit D1 and the second pixel unit D2 in the second direction Y to be arranged adjacently, or to enable the second sub-pixels P2 and P3 of the third pixel unit D3 and the fourth pixel unit D4 in the second direction Y to be arranged adjacently, in some optional embodiments, the first pixel unit D1 and the second pixel unit D2 adjacent in the second direction Y are staggered along the first direction X by a predetermined distance, the predetermined distance being equal to half the total length of the first pixel unit D1 in the first direction X; and / or, the third pixel unit D3 and the fourth pixel unit D4 adjacent in the second direction Y are staggered along the first direction X by a predetermined distance, the predetermined distance being equal to half the total length of the third pixel unit D3 in the first direction X.

[0062] It is understandable that, since the positions of the second sub-pixel P2 and the third sub-pixel P3 within the first pixel unit D1 and the fourth pixel unit D4 are opposite, and the second pixel unit D2 and the fourth pixel unit D4 are mirror images of each other, if the bottom corners of the first pixel unit D1 and the second pixel unit D2 are exactly overlapped and spliced, the positions of the second sub-pixel P2 and the third sub-pixel P3 within the first pixel unit D1 and the second pixel unit D2 are also opposite. It is necessary to offset the first pixel unit D1 and the second pixel unit D2 along the first direction X by a predetermined distance so that the second sub-pixel P2 and the third sub-pixel P3 of one first pixel unit D1 and two second sub-pixels P2 are respectively arranged adjacent to each other, or the second sub-pixel P2 and the second sub-pixel P2 and the third sub-pixel P3 of two first pixel units D1 are respectively arranged adjacent to each other, so as to realize the sharing of the vapor deposition openings of the second sub-pixel P2 and the third sub-pixel P3 respectively.

[0063] Similarly, the third pixel unit D3 and the fourth pixel unit D4 need to be staggered by a predetermined distance along the first direction X so that the second sub-pixel P2 and the third sub-pixel P3 of the third pixel unit D3 and the fourth pixel unit D4 can be arranged adjacently to facilitate vapor deposition.

[0064] Please see Figures 5 to 10 The present invention also provides a mask assembly for preparing the pixel arrangement structure in any of the above embodiments.

[0065] Optionally, the mask assembly includes: a first sub-pixel mask Y1 having a first sub-pixel opening K1; a second sub-pixel mask Y2 having a second sub-pixel opening K2; and a third sub-pixel mask Y3 having a third sub-pixel opening K3; wherein the second sub-pixel opening K2 and the third sub-pixel opening K3 are rotationally symmetric to each other.

[0066] The mask assembly provided in the embodiments of the invention includes a first sub-pixel mask Y1, a second sub-pixel mask Y2, and a third sub-pixel mask Y3, which are used for vapor deposition of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3, respectively. Since the second sub-pixel opening K2 of the second sub-pixel mask Y2 and the third sub-pixel opening K3 of the third sub-pixel mask Y3 are rotationally symmetrical, the other can be obtained by rotating one of the second sub-pixel mask Y2 or the third sub-pixel mask Y3 by a certain angle. Only one second sub-pixel mask Y2 or the third sub-pixel mask Y3 needs to be made to complete the vapor deposition of the second sub-pixel P2 and the third sub-pixel P3, reducing the manufacturing cost of the mask and saving costs.

[0067] Understandably, different pixel arrangement structures require different masks for fabrication.

[0068] For Figure 1 Pixel arrangement structure, optional, such as Figures 5 to 7 The first sub-pixel opening K1 of the first sub-pixel mask Y1 forms a quadrilateral structure, while the second sub-pixel opening K2 of the second sub-pixel mask Y2 and the third sub-pixel opening K3 of the third sub-pixel mask Y3 form a pentagonal structure, similar to the shape formed after the base corner of a triangle is cut off, and the second sub-pixel opening K2 and the third sub-pixel opening K3 point in opposite directions.

[0069] Optional, corresponding to Figure 3 The pixel arrangement structure in the image can be adopted as follows: Figures 8 to 10 The mask shown is used for fabrication. Considering production costs and process difficulty, multiple sub-pixel light-emitting materials can be deposited simultaneously through the same sub-pixel opening to form a light-emitting layer. The second sub-pixel mask Y2 has a second sub-pixel opening K2, and each second sub-pixel opening K2 is used to form light-emitting materials for at least two adjacent second sub-pixels P2, as shown in the figure. The third sub-pixel mask Y3 has a third sub-pixel opening K3, and each third sub-pixel opening K3 is used to form light-emitting materials for at least two adjacent third sub-pixels P3, as shown in the figure. Both the second sub-pixel opening K2 and the third sub-pixel opening K3 are elongated, and their tilt directions are opposite.

[0070] This invention also provides a display panel, including the pixel arrangement structure of any of the above embodiments.

[0071] The display panel provided in this embodiment of the invention has the technical effects of the pixel arrangement structure in any of the above embodiments. The explanations of the same or corresponding structures and terms in the above embodiments will not be repeated here.

[0072] The display panel provided in this embodiment of the invention can be applied to mobile phones or any electronic product with display function, including but not limited to the following categories: televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, in-vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. This embodiment of the invention does not impose any special limitations on these.

[0073] The above are merely specific embodiments of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

[0074] It should also be noted that the exemplary embodiments mentioned in this invention describe methods or systems based on a series of steps or apparatus. However, this invention is not limited to the order of the steps described above; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

Claims

1. A pixel arrangement structure, characterized by, It includes a first pixel unit and a second pixel unit, both of which are arranged along a first direction and alternately arranged along a second direction, wherein the first direction and the second direction intersect. Both the first pixel unit and the second pixel unit include a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors. The first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively set at one corner of the first pixel unit and the second pixel unit. The first pixel unit and the second pixel unit have a first side extending along the first direction. Along the second direction, the first sides of adjacent first pixel units and second pixel units are at least partially connected. Two second sub-pixels located in adjacent first pixel units and second pixel units are arranged adjacently. Two third sub-pixels located in adjacent first pixel units and second pixel units are arranged adjacently. Furthermore, within the first pixel unit and the second pixel unit, the second sub-pixels and the third sub-pixels are symmetrically distributed about the center line of the first sub-pixels. The second sub-pixels and the third sub-pixels have the same size and area, but different graphic orientations. Both the first pixel unit and the second pixel unit are isosceles triangles, with the first side of the first pixel unit being its base, and the first side of the second pixel unit being its base. In the second direction, the adjacent bottom edges are at least partially connected, and the bottom edges of the first pixel unit and the second pixel unit that are connected along the second direction extend along the first direction; In the first direction, the first pixel unit and the second pixel unit are alternately arranged, the apex corners of the first pixel unit and the second pixel unit point in opposite directions, and the sides of the first pixel unit and the second pixel unit are connected. Wherein, the side edges of the first pixel unit and the second pixel unit that are adjacent along the first direction are set at an acute angle to the bottom edge, so that the center points of the first pixel unit and the second pixel unit in the first direction are staggered in the second direction.

2. The pixel arrangement structure of claim 1, wherein, The first sub-pixel is set at the top corner of the first pixel unit and the second pixel unit, and the second sub-pixel and the third sub-pixel are set at the bottom corner of the first pixel unit and the second pixel unit, respectively.

3. The pixel arrangement structure of claim 1, wherein, Within the first pixel unit and the second pixel unit, the number of the first sub-pixel, the second sub-pixel, and the third sub-pixel are 1, 1, and 1, respectively; The first sub-pixel is kite-shaped, and the second and third sub-pixels are both quadrilaterals. The apex of the first sub-pixel corresponds to the apex of the first pixel unit and the second pixel unit, and one side of the second sub-pixel and the third sub-pixel corresponds to the bottom of the first pixel unit and the second pixel unit.

4. The pixel arrangement structure according to claim 3, characterized in that, The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

5. The pixel arrangement structure according to claim 3, characterized in that, The light-emitting area of ​​the third sub-pixel is greater than that of the first sub-pixel and the second sub-pixel.

6. The pixel arrangement structure according to claim 1, characterized in that, In the second direction, the first pixel unit and the second pixel unit are mirror-symmetric.

7. The pixel arrangement structure according to claim 1, characterized in that, It also includes a third pixel unit and a fourth pixel unit. Along the first direction, the first pixel unit and the third pixel unit are alternately arranged, and the first pixel unit and the third pixel unit are mirror images of each other. The second pixel unit and the fourth pixel unit are alternately arranged, and the second pixel unit and the fourth pixel unit are mirror images of each other; Both the third pixel unit and the fourth pixel unit include a first sub-pixel, a second sub-pixel, and a third sub-pixel with different colors; The second and third sub-pixels in the first and fourth pixel units are arranged in opposite positions.

8. The pixel arrangement structure according to claim 7, characterized in that, The first pixel unit and the second pixel unit adjacent to each other in the second direction are staggered by a predetermined distance along the first direction, the predetermined distance being equal to half of the total length of the first pixel unit in the first direction; And / or, The third and fourth pixel units adjacent to each other in the second direction are staggered by a predetermined distance along the first direction, the predetermined distance being equal to half the total length of the third pixel unit in the first direction.

9. A mask assembly, characterized in that, Used to prepare the pixel arrangement structure according to any one of claims 1 to 8.

10. The mask assembly according to claim 9, characterized in that, The mask assembly includes: a first sub-pixel mask having a first sub-pixel opening; a second sub-pixel mask having a second sub-pixel opening; and a third sub-pixel mask having a third sub-pixel opening; wherein the second sub-pixel opening and the third sub-pixel opening are rotationally symmetric to each other.

11. A display panel, characterized in that, Includes the pixel arrangement structure as described in any one of claims 1 to 8.

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