Pixel arrangement structure, display panel, display device and display panel preparation method

Abstract

The invention discloses a pixel arrangement structure, a display panel, a display device and a display panel preparation method. The pixel arrangement structure comprises a plurality of sub-pixels. Part of the sub-pixels are located in the first area and the second area, and the sub-pixels of the same color exist in the first area and the second area. The area of the single sub-pixel in the first region is smaller than that of the single sub-pixel with the same color in the second region, so that the service life of the sub-pixel in the second region is longer than that of the sub-pixel in the first region. When a conventional display area and a normally-on display area need to be arranged, the second area serves as the normally-on display area, the first area serves as the conventional display area, namely, the sub-pixels of the normally-on display area have long service life, and under the condition that the brightness decay rate of the sub-pixels of the second area is high, brightness decay of the sub-pixels in the first area and the second area is balanced; therefore, the brightness uniformity of the sub-pixels of the first area and the second area is improved, and the display effect of the display panel is ensured.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a pixel arrangement structure, a display panel, a display device and a method for manufacturing a display panel. Background Art

[0002] With the rapid development of electronic devices, users have higher and higher requirements for display effects, making the screen display of electronic devices more and more concerned by the industry. Increasing the display size and improving the image quality have always been the optimization direction of electronic devices, such as notebook computers, desktop displays, and car-mounted medium and large-sized electronic devices.

[0003] In the related art, an organic light emitting diode (OLED) display panel has a problem of uneven brightness. Summary of the invention

[0004] The embodiments of the present application provide a pixel arrangement structure, a display panel, a display device and a display panel manufacturing method, aiming to solve the problem of uneven brightness of the display panel.

[0005] A first aspect embodiment of the present application provides a pixel arrangement structure, the pixel arrangement structure includes a first area and a second area, the pixel arrangement structure includes: a plurality of sub-pixels, some of the sub-pixels are located in the first area and the second area, and there are sub-pixels of the same color in the first area and the second area; wherein, among at least some of the sub-pixels of the same color in the first area and the second area, the area of ​​a single sub-pixel in the first area is smaller than the area of ​​a single sub-pixel in the second area.

[0006] According to an implementation of the first aspect of the present application, the sub-pixel includes: a first sub-pixel; a second sub-pixel; and a third sub-pixel, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel are distributed at intervals, the first sub-pixel, the second sub-pixel and the third sub-pixel form a repeating unit, and a plurality of repeating units are arranged in an array in a first region and a second region; wherein an area of ​​a first sub-pixel located in the first region is smaller than an area of ​​a first sub-pixel located in the second region, an area of ​​a second sub-pixel located in the first region is smaller than an area of ​​a second sub-pixel located in the second region, and an area of ​​a third sub-pixel located in the first region is smaller than an area of ​​a third sub-pixel located in the second region.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, in the repeating units of the first zone, the distance between the first sub-pixel and the second sub-pixel is the first distance, the distance between the first sub-pixel and the third sub-pixel is the second distance, and the distance between the second sub-pixel and the third sub-pixel is the third distance; in the repeating units of the second zone, the distance between the first sub-pixel and the second sub-pixel is the fourth distance, the distance between the first sub-pixel and the third sub-pixel is the fifth distance, and the distance between the second sub-pixel and the third sub-pixel is the sixth distance, wherein the first distance is greater than the fourth distance; and / or the second distance is greater than the fifth distance; and / or the third distance is greater than the sixth distance.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, in the first direction, the first sub-pixel and the second sub-pixel in the repeating unit are located on one side of the third sub-pixel; the first sub-pixel and the second sub-pixel in the repeating unit are distributed along the second direction, and the first direction intersects the second direction.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the first distance is N times the fourth distance, the second distance is M times the fifth distance, and the third distance is L times the sixth distance, wherein N=M=L.

[0010] A second aspect of the present application provides a display panel, which includes a first display area and a second display area, the second display area including a constantly-on display area, the display panel including: a substrate; an isolation structure located on the substrate, the isolation structure enclosing a plurality of isolation openings; a light-emitting layer located on the substrate, the light-emitting layer including light-emitting units spaced apart from each other, wherein, among the isolation openings corresponding to the light-emitting units of the same color in the first display area and the second display area, the area of ​​a single isolation opening located in the first display area is smaller than the area of ​​a single isolation opening located in the second display area.

[0011] According to an implementation of the second aspect of the present application, the isolation opening includes a first opening, a second opening and a third opening; the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit is located at the first opening, the second light-emitting unit is located at the second opening, and the third light-emitting unit is located at the third opening, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit form a display unit, and the multiple display units are arranged in an array; wherein the area of ​​the first opening located in the first display area is smaller than the area of ​​the first opening located in the second display area, the area of ​​the second opening located in the first display area is smaller than the area of ​​the second opening located in the second display area, and the area of ​​the third opening located in the first display area is smaller than the area of ​​the third opening located in the second display area.

[0012] According to any of the aforementioned embodiments of the second aspect of the present application, in the display unit of the first display area, the distance between the first opening and the second opening is the first spacing, the distance between the first opening and the third opening is the second spacing, and the distance between the second opening and the third opening is the third spacing; in the second display area, the distance between the first opening and the second opening is the fourth spacing, the distance between the first opening and the third opening is the fifth spacing, and the distance between the second opening and the third opening is the sixth spacing, wherein the first spacing is greater than the fourth spacing; and / or the second spacing is greater than the fifth spacing; and / or the third spacing is greater than the sixth spacing.

[0013] According to any of the aforementioned embodiments of the second aspect of the present application, the first spacing is P times the fourth spacing, the second spacing is Q times the fifth spacing, and the third spacing is R times the sixth spacing, wherein P=Q=R.

[0014] According to any of the aforementioned embodiments of the second aspect of the present application, in the first direction, the first opening and the second opening in the display unit are located on one side of the third opening; the first opening and the second opening in the display unit are distributed along the second direction, and the first direction intersects with the second direction.

[0015] According to any of the aforementioned embodiments of the second aspect of the present application, in the second display area, the size of the cross section of at least a portion of the isolation structure located between adjacent pixel openings is smaller than the size of the cross section of the isolation structure at the corresponding position in the first display area.

[0016] According to any of the aforementioned embodiments of the second aspect of the present application, the isolation structure includes a first conductive layer; the display panel also includes a first electrode layer, the first electrode layer is located on the side of the light-emitting layer away from the substrate, and is disconnected at the isolation opening to form first electrodes spaced apart from each other, and at least part of the first electrode and the first conductive layer are electrically connected.

[0017] According to any of the aforementioned embodiments of the second aspect of the present application, the isolation structure includes a second layer and a third layer, the first conductive layer is located between the second layer and the third layer, and the second layer is located on the side of the first conductive layer facing away from the substrate, and the orthographic projection of the first conductive layer on the substrate is located within the orthographic projection area of ​​the second layer on the substrate; or, the third layer is located between the first conductive layer and the second layer, and the second layer is located on the side of the first conductive layer facing away from the substrate, and the orthographic projection of the third layer on the substrate is located within the orthographic projection area of ​​the second layer on the substrate.

[0018] According to any of the aforementioned implementations of the second aspect of the present application, the isolation structure further includes a pixel defining portion, and the first conductive layer is located on a side of the pixel defining portion facing away from the substrate.

[0019] An embodiment of a third aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0020] An embodiment of a fourth aspect of the present application provides a method for preparing a display panel, including:

[0021] An isolation structure is prepared on the substrate, wherein the isolation structure encloses a plurality of isolation openings, and the isolation openings include a first opening, a second opening, and a third opening;

[0022] A light-emitting layer is prepared on a substrate, the light-emitting layer includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit which are arranged at intervals from each other, the first light-emitting unit is located at a first opening, the second light-emitting unit is located at a second opening, and the third light-emitting unit is located at a third opening, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit form a display unit, and the plurality of display units are arranged in an array; wherein the area of ​​the first opening located in the first display area is smaller than the area of ​​the first opening located in the second display area, the area of ​​the second opening located in the first display area is smaller than the area of ​​the second opening located in the second display area, and the area of ​​the third opening located in the first display area is smaller than the area of ​​the third opening located in the second display area.

[0023] According to the pixel arrangement structure of the embodiment of the present application, the pixel arrangement structure includes sub-pixels. The area of ​​the sub-pixels in the first zone is smaller than the area of ​​the sub-pixels of the same color in the second zone, so that the service life of the sub-pixels in the second zone is better than the service life of the sub-pixels in the first zone. When it is necessary to set a conventional display area and a constantly bright display area, the second zone is used as the constantly bright display area, and the first zone is used as the conventional display area, that is, the sub-pixels in the constantly bright display area have a longer service life. When the brightness decay rate of the sub-pixels in the second zone is faster, the brightness decay of the sub-pixels in the first zone and the second zone is more balanced, thereby improving the brightness uniformity of the sub-pixels in the first zone and the second zone to ensure the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0025] Figure 1 is a top view schematic diagram of a pixel arrangement structure provided in an embodiment of the present application;

[0026] Figure 2 yes Figure 1 A partial enlarged view of the first zone in the middle;

[0027] Figure 3 yes Figure 1 A partial enlarged view of the second area in the middle;

[0028] Figure 4 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0029] Figure 5 is a partial top view of a first display area of ​​a display panel provided by an embodiment of the present application;

[0030] Figure 6 is a partial top view of a second display area of ​​a display panel provided by an embodiment of the present application;

[0031] Figure 7 is a partial cross-sectional view of a display panel in another embodiment;

[0032] Figure 8 It is a schematic flow chart of a method for preparing a display panel provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 10. Pixel arrangement structure; 11. First area; 12. Second area;

[0035] 100, sub-pixel; 110, first sub-pixel; 120, second sub-pixel; 130, third sub-pixel; 140, repeating unit;

[0036] d1, first distance; d2, second distance; d3, third distance; d4, fourth distance; d5, fifth distance; d6, sixth distance;

[0037] 20. display panel; 21. first display area; 22. second display area;

[0038] 200. Substrate;

[0039] 300, pixel definition layer; 310, pixel definition portion; 320, pixel opening; 321, first opening; 322, second opening; 323, third opening; 330, pixel electrode; 340, yield opening;

[0040] 400, light-emitting layer; 410, light-emitting unit; 411, first light-emitting unit; 412, second light-emitting unit; 413, third light-emitting unit; 420, display unit;

[0041] 500, isolation structure; 510, first conductive layer; 520, second layer; 530, third layer; 540, isolation opening;

[0042] 600, first electrode layer; 610, first electrode;

[0043] D1, first spacing; D2, second spacing; D3, third spacing; D4, fourth spacing; D5, fifth spacing; D6, sixth spacing;

[0044] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0045] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0048] Embodiments of the present application provide a pixel arrangement structure, a display panel, a display device, and a method for manufacturing a display panel. The following will describe various embodiments of the pixel arrangement structure, the display panel, the display device, and the method for manufacturing a display panel in conjunction with the accompanying drawings.

[0049] Please also read Figures 1 to 3 , Figure 1 is a top view schematic diagram of a pixel arrangement structure provided in an embodiment of the present application; Figure 2 yes Figure 1 A partial enlarged view of the first zone in the middle; Figure 3 yes Figure 1 A partial enlarged view of the second area in the middle.

[0050] like Figures 1 to 3As shown, an embodiment of the first aspect of the present application provides a pixel arrangement structure 10, the pixel arrangement structure 10 includes a first area 11 and a second area 12, the pixel arrangement structure 10 includes a plurality of sub-pixels 100, some of the sub-pixels 100 are located in the first area 11, some of the sub-pixels 100 are located in the second area 12, and there are sub-pixels 100 of the same color in the first area 11 and the second area 12; among at least some of the sub-pixels 100 of the same color in the first area 11 and the second area 12, the area of ​​a single sub-pixel 100 in the first area 11 is smaller than the area of ​​a single sub-pixel 100 in the second area 12.

[0051] According to the pixel arrangement structure 10 of the embodiment of the present application, the pixel arrangement structure 10 includes sub-pixels 100. The area of ​​a single sub-pixel 100 in the first area 11 is smaller than the area of ​​a single sub-pixel 100 of the same color in the second area 12, so that the service life of the sub-pixel 100 in the second area 12 is better than the service life of the sub-pixel 100 in the first area 11. When it is necessary to set a conventional display area and a constantly bright display area, the second area 12 is used as the constantly bright display area, and the first area 11 is used as the conventional display area, that is, the sub-pixels 100 in the constantly bright display area have a longer service life. When the brightness decay rate of the sub-pixels 100 in the second area 12 is faster, the brightness decay of the sub-pixels 100 in the first area 11 and the second area 12 is more balanced, thereby improving the brightness uniformity of the sub-pixels 100 in the first area 11 and the second area 12 to ensure the display effect of the display panel 20.

[0052] like Figure 2 and Figure 3 As shown, in some optional embodiments, the sub-pixel 100 includes a first sub-pixel 110, a second sub-pixel 120 and a third sub-pixel 130, and the first sub-pixel 110, the second sub-pixel 120 and the third sub-pixel 130 are distributed at intervals, wherein the area of ​​the first sub-pixel 110 located in the first zone 11 is smaller than the area of ​​the first sub-pixel 110 located in the second zone 12, the area of ​​the second sub-pixel 120 located in the first zone 11 is smaller than the area of ​​the second sub-pixel 120 located in the second zone 12, and the area of ​​the third sub-pixel 130 located in the first zone 11 is smaller than the area of ​​the third sub-pixel 130 located in the second zone 12.

[0053] In these optional embodiments, the area of ​​each sub-pixel 100 in the first area 11 is smaller than the area of ​​each sub-pixel 100 of the corresponding color in the second area 12, so that the service life of the sub-pixel 100 in the second area 12 is better than the service life of the sub-pixel 100 in the first area 11. When it is necessary to set a normal display area and a constant-brightness display area, the second area 12 is used as the constant-brightness display area, and the first area 11 is used as the normal display area, that is, the sub-pixels 100 in the constant-brightness display area have a longer service life. When the brightness decay rate of the sub-pixels 100 in the second area 12 is faster, the brightness decay of the sub-pixels 100 in the first area 11 and the second area 12 is more balanced, thereby improving the brightness uniformity of the sub-pixels 100 in the first area 11 and the second area 12.

[0054] In some optional embodiments, the first sub-pixel 110, the second sub-pixel 120 and the third sub-pixel 130 form a repeating unit 140, and the plurality of repeating units 140 are arranged in an array in the first area 11 and the second area 12; in the repeating unit 140 of the first area 11, the distance between the first sub-pixel 110 and the second sub-pixel 120 in the second direction Y is a first distance d1, the distance between the first sub-pixel 110 and the third sub-pixel 130 in the first direction X is a second distance d2, and the distance between the second sub-pixel 120 and the third sub-pixel 130 in the first direction X is a third distance d3; in the repeating unit 140 of the second area 12, the distance between the first sub-pixel 110 and the second sub-pixel 120 in the second direction Y is a fourth distance d4, the distance between the first sub-pixel 110 and the third sub-pixel 130 in the first direction X is a fifth distance d5, and the distance between the second sub-pixel 120 and the third sub-pixel 130 in the first direction X is a sixth distance d6. The first distance d1 is greater than the fourth distance d4; and / or the second distance d2 is greater than the fifth distance d5; and / or the third distance d3 is greater than the sixth distance d6. The area of ​​the repeating unit 140 located in the first region 11 is the same or substantially the same as the area of ​​the repeating unit 140 located in the second region 12. In the first direction X, the first sub-pixel 110 and the second sub-pixel 120 in the repeating unit 140 are located on one side of the third sub-pixel 130; the first sub-pixel 110 and the second sub-pixel 120 in the repeating unit 140 are distributed along the second direction Y, and the first direction X intersects with the second direction Y.

[0055] In these optional embodiments, each sub-pixel 100 is arranged in the form of a repeating unit 140, so that the pixel arrangement structure 10 is arranged uniformly, and the display uniformity is improved. The first distance d1 is greater than the fourth distance d4, the second distance d2 is greater than the fifth distance d5, and the third distance d3 is greater than the sixth distance d6, that is, the distance between each sub-pixel 100 in the repeating unit 140 located in the first area 11 is greater than the distance between the corresponding sub-pixels 100 in the repeating unit 140 located in the second area 12. When the pixel density of the first area 11 and the second area 12 is the same (the same pixel density means that the number of sub-pixels 100 in the first area 11 is the same as the number of sub-pixels 100 in the second area 12 under the same area), the distance between the sub-pixels 100 in the second area 12 is smaller, and the area of ​​each sub-pixel 100 is larger, so that the service life of the sub-pixels 100 in the second area 12 is better than the service life of the sub-pixels 100 in the first area 11.

[0056] In some optional embodiments, the first distance d1 is N times the fourth distance d4, the second distance d2 is M times the fifth distance d5, and the third distance d3 is L times the sixth distance d6, wherein N=M=L.

[0057] In these optional embodiments, when the first distance d1 is greater than the fourth distance d4, the second distance d2 is greater than the fifth distance d5, and the third distance d3 is greater than the sixth distance d6, the fourth distance d4 is equivalent to the reduction factor of the first distance d1, the fifth distance d5 is equivalent to the reduction factor of the second distance d2, and the sixth distance d6 is equivalent to the reduction factor of the third distance d3, which are all the same, that is, the area enlargement multiples of the sub-pixels 100 in the second zone 12 relative to the sub-pixels 100 in the first zone 11 are the same in all directions, which can not only make the service life of the sub-pixels 100 in the second zone 12 better than the service life of the sub-pixels 100 in the first zone 11, but also ensure the display uniformity of the first zone 11 and the second zone 12.

[0058] See also Figures 4 to 6 , Figure 4 is a partial cross-sectional view of a display panel provided in an embodiment of the present application; Figure 5 is a partial top view of a first display area of ​​a display panel provided by an embodiment of the present application; Figure 6 It is a partial top view of a second display area of ​​a display panel provided in an embodiment of the present application.

[0059] like Figures 4 to 6As shown, the second aspect of the present application provides a display panel 20, which can be an organic light emitting diode (OLED) display panel 20. The display panel 20 includes a first display area 21 and a second display area 22 surrounding at least part of the first display area 21, the second display area 22 includes a constantly lit display area, and the display panel 20 includes a substrate 200, an isolation structure 500 and a light emitting layer 400; the isolation structure 500 is located on the substrate 200, and the isolation structure 500 encloses a plurality of isolation openings 540; the light emitting layer 400 is located on the substrate 200, and the light emitting layer 400 includes light emitting units 410 arranged at intervals from each other, wherein, among the isolation openings 540 corresponding to the light emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​a single isolation opening 540 located in the first display area 21 is smaller than the area of ​​a single isolation opening 540 located in the second display area 22.

[0060] According to the display panel 20 of the embodiment of the present application, the isolation structure 500 encloses and forms an isolation opening 540. When preparing the light-emitting layer 400, the light-emitting layer 400 is separated by the isolation structure 500 to form light-emitting units 410 that are spaced apart from each other and located in the isolation opening 540, which can reduce the development and use of precision masks and reduce the manufacturing cost of the display panel 20. Among the isolation openings 540 corresponding to the light-emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​the isolation openings 540 located in the first display area 21 is smaller than the area of ​​the isolation openings 540 located in the second display area 22, so that the service life of the light-emitting units 410 in the second display area 22 is better than the service life of the light-emitting units 410 of the same color in the first display area 21. The second display area 22 includes an always-on display area, and the first display area 21 serves as a conventional display area, that is, the light-emitting unit 410 of the always-on display area has a longer service life. When the brightness decay rate of the light-emitting unit 410 in the second display area 22 is faster, the brightness decay of the light-emitting unit 410 in the first display area 21 and the second display area 22 is more balanced, thereby improving the brightness uniformity of the sub-pixels 100 in the first display area 21 and the second display area 22 to ensure the display effect of the display panel 20.

[0061] There are many ways to set the substrate 200. For example, the substrate 200 may include a substrate and an array substrate arranged on the substrate. Alternatively, the substrate 200 is the substrate. Alternatively, the substrate 200 includes a buffer layer and a support plate on a side away from the substrate.

[0062] like Figure 5 and Figure 6As shown, in some optional embodiments, the isolation opening 540 includes a first opening 321, a second opening 322 and a third opening 323; the light-emitting unit 410 includes a first light-emitting unit 411, a second light-emitting unit 412 and a third light-emitting unit 413, the first light-emitting unit 411 is located at the first opening 321, the second light-emitting unit 412 is located at the second opening 322, and the third light-emitting unit 413 is located at the third opening 323, the first light-emitting unit 411, the second light-emitting unit 412 and the third light-emitting unit 413 form a display unit 420, and a plurality of display units 420 are arranged in an array; wherein, the area of ​​the first opening 321 located in the first display area 21 is smaller than the area of ​​the first opening 321 located in the second display area 22, the area of ​​the second opening 322 located in the first display area 21 is smaller than the area of ​​the second opening 322 located in the second display area 22, and the area of ​​the third opening 323 located in the first display area 21 is smaller than the area of ​​the third opening 323 located in the second display area 22. The area of ​​the display unit 420 located in the first display area 21 is the same or substantially the same as the area of ​​the display unit 420 located in the second display area 22. In the first direction X, the first opening 321 and the second opening 322 in the display unit 420 are located on one side of the third opening 323; the first opening 321 and the second opening 322 in the display unit 420 are distributed along the second direction Y, and the first direction X intersects with the second direction Y.

[0063] In these optional embodiments, each light-emitting unit 410 is arranged in the form of a display unit 420, so that the light-emitting units 410 are arranged evenly, thereby improving display uniformity. The area of ​​the first opening 321 located in the first display area 21 is smaller than the area of ​​the first opening 321 located in the second display area 22, so that the effective light-emitting area of ​​the first light-emitting unit 411 located in the first display area 21 is smaller than the effective light-emitting area of ​​the first light-emitting unit 411 located in the second display area 22. The area of ​​the second opening 322 located in the first display area 21 is smaller than the area of ​​the second opening 322 located in the second display area 22, so that the effective light-emitting area of ​​the second light-emitting unit 412 located in the first display area 21 is smaller than the effective light-emitting area of ​​the second light-emitting unit 412 located in the second display area 22. The area of ​​the third opening 323 located in the first display area 21 is smaller than the area of ​​the third opening 323 located in the second display area 22, so that the effective light-emitting area of ​​the third light-emitting unit 413 located in the first display area 21 is smaller than the effective light-emitting area of ​​the third light-emitting unit 413 located in the second display area 22. That is, in the isolation openings 540 corresponding to the light-emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​the isolation openings 540 located in the first display area 21 is smaller than the area of ​​the isolation openings 540 located in the second display area 22, so that the service life of the light-emitting units 410 in the second display area 22 is better than the service life of the light-emitting units 410 of the same color in the first display area 21. The second display area 22 includes a constantly bright display area, and the first display area 21 is used as a conventional display area, that is, the light-emitting units 410 in the constantly bright display area have a longer service life. When the brightness decay rate of the light-emitting units 410 in the second display area 22 is faster, the brightness decay of the light-emitting units 410 in the first display area 21 and the second display area 22 is more balanced, thereby improving the brightness uniformity of the sub-pixels 100 in the first display area 21 and the second display area 22, so as to ensure the display effect of the display panel 20.

[0064] In some optional embodiments, in the display unit 420 of the first display area 21, the distance between the first opening 321 and the second opening 322 in the second direction Y is the first spacing D1, the distance between the first opening 321 and the third opening 323 in the first direction X is the second spacing D2, and the distance between the second opening 322 and the third opening 323 in the first direction X is the third spacing D3; in the second display area 22, the distance between the first opening 321 and the second opening 322 in the second direction Y is the fourth spacing D4, the distance between the first opening 321 and the third opening 323 in the first direction X is the fifth spacing D5, and the distance between the second opening 322 and the third opening 323 in the first direction X is the sixth spacing D6. Wherein, the first spacing D1 is greater than the fourth spacing D4; and / or, the second spacing D2 is greater than the fifth spacing D5; and / or, the third spacing D3 is greater than the sixth spacing D6.

[0065] In these optional embodiments, the first spacing D1 is greater than the fourth spacing D4, the second spacing D2 is greater than the fifth spacing D5, and the third spacing D3 is greater than the sixth spacing D6, that is, the spacing between each light-emitting unit 410 in the display unit 420 located in the first display area 21 is greater than the spacing between each light-emitting unit 410 in the display unit 420 located in the second display area 22. When the pixel density of the first display area 21 and the second display area 22 is the same, the spacing between the light-emitting units 410 located in the second display area 22 is smaller, and the effective light-emitting area of ​​each light-emitting unit 410 is larger, so that the service life of the light-emitting units 410 in the second display area 22 is better than the service life of the light-emitting units 410 in the first display area 21.

[0066] In some optional embodiments, the first spacing D1 is P times the fourth spacing D4, the second spacing D2 is Q times the fifth spacing D5, and the third spacing D3 is R times the sixth spacing D6, wherein P=Q=R.

[0067] In these optional embodiments, when the first spacing D1 is greater than the fourth spacing D4, the second spacing D2 is greater than the fifth spacing D5, and the third spacing D3 is greater than the sixth spacing D6, the fourth spacing D4 is equivalent to the reduction factor of the first spacing D1, the fifth spacing D5 is equivalent to the reduction factor of the second spacing D2, and the sixth spacing D6 is equivalent to the reduction factor of the third spacing D3, which is the same, that is, the area enlargement factor of the sub-pixel 100 of the second display area 22 relative to the light-emitting unit 410 of the first display area 21 is the same in all directions, which can make the service life of the light-emitting unit 410 of the second display area 22 better than the service life of the light-emitting unit 410 of the first display area 21, and ensure the display uniformity of the first display area 21 and the second display area 22. Specifically, the above distances are all minimum distances.

[0068] In some optional embodiments, in the second display area 22 , in a direction parallel to the substrate 200 , the size of the cross section of at least a portion of the isolation structure 500 located between adjacent isolation openings 540 is smaller than the size of the cross section of the isolation structure 500 at the corresponding position in the first display area 21 .

[0069] The isolation structure 500 at the corresponding position refers to at least a portion of the isolation structure 500 located between adjacent isolation openings 540 in the first display area 21, and the light-emitting units 410 corresponding to the two isolation openings 540 in the first display area 21 have the same color as the light-emitting units 410 corresponding to the two isolation openings 540 in the second display area 22.

[0070] In these optional embodiments, the cross-sectional dimension of the isolation structure 500 in the second display area 22 is smaller than the cross-sectional dimension of the isolation structure 500 at the corresponding position in the first display area 21, that is, the isolation structure 500 in the second display area 22 occupies a smaller space, which can make more space to set a larger area of ​​the light-emitting unit 410, thereby improving the service life of the light-emitting unit 410 in the second display area 22.

[0071] In some optional embodiments, the isolation structure 500 includes a first conductive layer 510; the display panel 20 also includes a first electrode layer 600, which is located on the side of the light-emitting layer 400 away from the substrate 200, and the first electrode layer 600 includes first electrodes 610 spaced apart from each other, and at least part of the first electrodes 610 is electrically connected to the first conductive layer 510.

[0072] In these optional embodiments, the first electrode layer 600 is disconnected by the isolation structure 500 to form a first electrode 610 located in each isolation opening 540, and the first electrode 610 and the first conductive layer 510 are electrically connected, so that the first electrodes 610 spaced apart from each other can be electrically connected to each other through the first conductive layer 510 to form a full-surface electrode.

[0073] In some optional embodiments, the isolation structure 500 further includes a second layer 520 located on a side of the first conductive layer 510 facing away from the substrate 200 , and an orthographic projection of the first conductive layer 510 on the substrate 200 is located within an orthographic projection of the second layer 520 on the substrate 200 .

[0074] In these optional embodiments, the first conductive layer 510 and the second layer 520 are arranged to form an isolation structure 500, the orthographic projection of the first conductive layer 510 arranged close to the substrate 200 on the substrate 200 is located within the orthographic projection of the second layer 520 on the substrate 200, the area of ​​the second layer 520 is larger than the area of ​​the first conductive layer 510, and the second layer 520 covers the surface of the first conductive layer 510 close to the second layer 520, and at this time, the first conductive layer 510 is recessed relative to the second layer 520 in a direction away from the pixel opening 320. When preparing the light-emitting layer 400, the light-emitting layer 400 has a large drop at the edge of the isolation structure 500, and the first conductive layer 510 is recessed relative to the second layer 520, and the light-emitting layer 400 is difficult to connect at the edge of the isolation structure 500, so it breaks, and the light-emitting layer 400 breaks to form mutually disconnected light-emitting units 410.

[0075] In some optional embodiments, the isolation structure 500 further includes a third layer 530 , the first conductive layer 510 is located between the second layer 520 and the third layer 530 , and the second layer 520 is located on a side of the first conductive layer 510 facing away from the substrate 100 .

[0076] In these optional embodiments, a third layer 530 is provided, and the first conductive layer 510 can be well attached to the third layer 530 , and the generated etching waste falls on the third layer 530 , which is easy to clean.

[0077] Optionally, the third layer 530 is located between the first conductive layer 510 and the second layer 520, and the second layer 520 is located on the side of the first conductive layer 510 away from the substrate 520, the orthographic projection of the third layer 530 on the substrate 100 is located within the orthographic projection area of ​​the second layer 520 on the substrate 100, the area of ​​the second layer 520 is larger than the area of ​​the third layer 530, and the second layer 520 covers the surface of the third layer 530 close to the second layer 520, and at this time, the third layer 530 is recessed relative to the second layer 520 in the direction away from the pixel opening 320. When preparing the light-emitting layer 400, the light-emitting layer 400 has a large drop at the edge of the isolation structure 500, and the third layer 530 is concave relative to the second layer 520. The light-emitting layer 400 is difficult to connect at the edge of the isolation structure 500, so it breaks, and the light-emitting layer 400 breaks to form mutually disconnected light-emitting units 410. The third layer 530 may include a conductive material, that is, the third layer 530 is a conductor.

[0078] Please also read Figure 4 and Figure 7 , Figure 7 is a partial cross-sectional view of a display panel in another embodiment.

[0079] In some optional embodiments, such as Figure 4 As shown, the display panel 10 further includes a pixel definition layer 300, and the pixel definition layer 300 includes a pixel defining portion 310 and a pixel opening 320 enclosed by the pixel defining portion 310. The pixel defining portion 310 constitutes a partial structure of the isolation structure 500, that is, the isolation structure 500 also includes the pixel defining portion 310. The pixel opening 320 constitutes a partial area of ​​the isolation opening 540. The above-mentioned first conductive layer 510 is located on the side of the pixel defining portion 310 away from the substrate 200, and the orthographic projection of the first conductive layer 510 on the substrate 200 is located within the orthographic projection of the pixel defining portion 310 on the substrate 200. In another embodiment, as Figure 7 As shown, the pixel definition layer 300 is not a part of the isolation structure 500 , a clearance opening 340 is provided on the pixel defining portion 310 , and the isolation structure 500 is located in the clearance opening 340 .

[0080] In these optional embodiments, the pixel defining portion 310 of the pixel defining layer 300 encloses a pixel opening 320 to set the light-emitting unit 410 and realize normal light emission of the light-emitting unit 410. In addition, the pixel defining portion 310 defines the setting area of ​​each light-emitting unit 410 to reduce the cross-color between light-emitting units 410 of different colors. The isolation structure 500 is disposed on the pixel defining portion 310, and the isolation structure 500 is equivalent to the pixel opening 320 having a large height difference. When preparing the light-emitting layer 400 and due to the large height difference, the light-emitting layer 400 is easier to disconnect at the position of the isolation structure 500, reducing the difficulty of preparing the light-emitting layer 400. The isolation structure 500 is arranged at the clearance opening 340 on the pixel defining portion 310. During the preparation process, the preparation step of the isolation structure 500 is performed before the preparation of the pixel electrode 330, that is, after the isolation structure 500 is prepared on the substrate 200, the pixel electrode 330 is prepared on the substrate 200, so as to reduce the influence of the preparation of the isolation structure 500 on the pixel electrode 330 and ensure that the pixel electrode 330 is not damaged.

[0081] Optionally, among the pixel openings 320 corresponding to the light-emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​the pixel openings 320 located in the first display area 21 is smaller than the area of ​​the pixel openings 320 located in the second display area 22. Among the pixel openings 320 corresponding to the light-emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​the pixel openings 320 located in the first display area 21 is smaller than the area of ​​the pixel openings 320 located in the second display area 22, so that the service life of the light-emitting units 410 in the second display area 22 is better than the service life of the light-emitting units 410 of the same color in the first display area 21.

[0082] Optionally, the display panel 20 further includes a pixel electrode 330 exposed by the pixel opening 320, and one of the pixel electrode 330 and the first electrode 610 serves as the anode of the light-emitting unit 410, and the other serves as the cathode of the light-emitting unit 410. In the embodiment of the present application, the pixel electrode 330 is used as the anode of the light-emitting unit 410, and the first electrode 610 is used as the cathode of the light-emitting unit 410 for illustration. The pixel defining portion 310 is used to define the effective light-emitting area of ​​the display panel 20, and the effective light-emitting area is determined by the area of ​​the pixel electrode 330 exposed from the pixel opening 320, that is, it is determined by the area of ​​the pixel opening 320. In the present application, the area of ​​the pixel electrode 330 exposed from the pixel opening 320 is the effective light-emitting area of ​​the light-emitting unit 410. The above-mentioned one sub-pixel 100 is the one light-emitting unit 410, and the area of ​​the above-mentioned sub-pixel 100 refers to the effective light-emitting area of ​​the light-emitting unit 410.

[0083] Optionally, the light emitting layer 400 includes an electron injection layer (EIL), an electron transport layer (ETL), a light emitting material layer, a hole injection layer (HIL) and a hole transport layer (HTL).

[0084] The structural design in this embodiment can be applied to other display panels 20 , and the specific selection can be made according to actual conditions, and this application does not impose any specific restrictions on it.

[0085] The embodiment of the third aspect of the present application further provides a display device, comprising the display panel 20 of any of the above-mentioned second aspect embodiments. Since the display device provided by the embodiment of the third aspect of the present application comprises the display panel 20 of any of the above-mentioned second aspect embodiments, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel 20 of any of the above-mentioned second aspect embodiments, which will not be described in detail here.

[0086] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0087] See also Figure 8 , Figure 8 Schematic diagram of a manufacturing process of a display panel manufacturing method provided by an embodiment of the present application. The embodiment of the fourth aspect of the present application also provides a method for manufacturing a display panel. The display panel 20 can be the display panel 20 provided by any of the above-mentioned second aspect embodiments. Please refer to Figures 4 to 7 , the preparation method comprises:

[0088] Step S01: preparing an isolation structure on a substrate, wherein the isolation structure encloses a plurality of isolation openings, and the isolation openings include a first opening, a second opening, and a third opening.

[0089] Step S02: Prepare a light-emitting layer on a substrate, the light-emitting layer comprising a first light-emitting unit, a second light-emitting unit and a third light-emitting unit which are spaced apart from each other, the first light-emitting unit is located at a first opening, the second light-emitting unit is located at a second opening, the third light-emitting unit is located at a third opening, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit form a display unit, and the plurality of display units are arranged in an array; wherein an area of ​​the first opening located in the first display region is smaller than an area of ​​the first opening located in the second display region, an area of ​​the second opening located in the first display region is smaller than an area of ​​the second opening located in the second display region, and an area of ​​the third opening located in the first display region is smaller than an area of ​​the third opening located in the second display region.

[0090] According to the preparation method of the fourth aspect of the present application, the isolation structure 500 is first prepared by step S01, and the isolation opening 540 formed by the isolation structure 500 is enclosed, and the isolation opening 540 includes a first opening 321, a second opening 322 and a third opening 323. Then, the light-emitting layer 400 is prepared by step S02, and each light-emitting unit 410 is arranged in the form of a display unit 420, so that the light-emitting unit 410 is arranged evenly, thereby improving the display uniformity. The area of ​​the first opening 321 located in the first display area 21 is smaller than the area of ​​the first opening 321 located in the second display area 22, so that the effective light-emitting area of ​​the first light-emitting unit 411 located in the first display area 21 is smaller than the effective light-emitting area of ​​the first light-emitting unit 411 located in the second display area 22. The area of ​​the second opening 322 located in the first display area 21 is smaller than the area of ​​the second opening 322 located in the second display area 22, so that the effective light-emitting area of ​​the second light-emitting unit 412 located in the first display area 21 is smaller than the effective light-emitting area of ​​the second light-emitting unit 412 located in the second display area 22. The area of ​​the third opening 323 located in the first display area 21 is smaller than the area of ​​the third opening 323 located in the second display area 22, so that the effective light emitting area of ​​the third light emitting unit 413 located in the first display area 21 is smaller than the effective light emitting area of ​​the third light emitting unit 413 located in the second display area 22. That is, among the isolation openings 540 corresponding to the light emitting units 410 of the same color in the first display area 21 and the second display area 22, the area of ​​the isolation openings 540 located in the first display area 21 is smaller than the area of ​​the isolation openings 540 located in the second display area 22, so that the service life of the light emitting unit 410 in the second display area 22 is better than the service life of the light emitting unit 410 of the same color in the first display area 21. The second display area 22 includes an always-on display area, and the first display area 21 serves as a conventional display area, that is, the light-emitting unit 410 of the always-on display area has a longer service life. When the brightness decay rate of the light-emitting unit 410 in the second display area 22 is faster, the brightness decay of the light-emitting unit 410 in the first display area 21 and the second display area 22 is more balanced, thereby improving the brightness uniformity of the sub-pixels 100 in the first display area 21 and the second display area 22 to ensure the display effect of the display panel 20.

[0091] According to the embodiments described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A pixel arrangement structure, characterized in that: The pixel arrangement structure includes a first area and a second area, and the pixel arrangement structure includes: A plurality of sub-pixels, some of which are located in the first zone, and some of which are located in the second zone, and sub-pixels of the same color exist in the first zone and the second zone; wherein, among at least some of the sub-pixels of the same color in the first zone and the second zone, an area of ​​a single sub-pixel in the first zone is smaller than an area of ​​a single sub-pixel in the second zone.

2. The pixel arrangement structure according to claim 1, characterized in that: The sub-pixel comprises: a first sub-pixel; a second sub-pixel; a third sub-pixel, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel are arranged at intervals, the first sub-pixel, the second sub-pixel and the third sub-pixel form a repeating unit, and a plurality of the repeating units are arranged in an array in the first area and the second area; Among them, the area of ​​the first sub-pixel located in the first zone is smaller than the area of ​​the first sub-pixel located in the second zone, the area of ​​the second sub-pixel located in the first zone is smaller than the area of ​​the second sub-pixel located in the second zone, and the area of ​​the third sub-pixel located in the first zone is smaller than the area of ​​the third sub-pixel located in the second zone.

3. The pixel arrangement structure according to claim 2, characterized in that: In the repeating unit of the first region, the distance between the first sub-pixel and the second sub-pixel is a first distance, the distance between the first sub-pixel and the third sub-pixel is a second distance, and the distance between the second sub-pixel and the third sub-pixel is a third distance; in the repeating unit of the second region, the distance between the first sub-pixel and the second sub-pixel is a fourth distance, the distance between the first sub-pixel and the third sub-pixel is a fifth distance, and the distance between the second sub-pixel and the third sub-pixel is a sixth distance; Wherein, the first distance is greater than the fourth distance; and / or, the second distance is greater than the fifth distance; and / or, the third distance is greater than the sixth distance; Preferably, in the first direction, the first sub-pixel and the second sub-pixel in the repeating unit are located on one side of the third sub-pixel; the first sub-pixel and the second sub-pixel in the repeating unit are distributed along the second direction, and the first direction intersects with the second direction.

4. The pixel arrangement structure according to claim 3, characterized in that: The first distance is N times the fourth distance, the second distance is M times the fifth distance, and the third distance is L times the sixth distance. Among them, N=M=L.

5. A display panel, characterized in that: The display panel includes a first display area and a second display area, the second display area includes a constantly bright display area, and the display panel includes: substrate; An isolation structure, located on the substrate, the isolation structure encloses and forms a plurality of isolation openings; A light-emitting layer is located on the substrate and is disconnected at the isolation opening to form a plurality of light-emitting units; Among the isolation openings corresponding to the light-emitting units of the same color in the first display area and the second display area, the area of ​​a single isolation opening located in the first display area is smaller than the area of ​​a single isolation opening located in the second display area.

6. The display panel according to claim 5, characterized in that: The isolation opening includes a first opening, a second opening and a third opening; The light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the first light-emitting unit is located at the first opening, the second light-emitting unit is located at the second opening, the third light-emitting unit is located at the third opening, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit form a display unit, and a plurality of the display units are arranged in an array; Among them, the area of ​​the first opening located in the first display area is smaller than the area of ​​the first opening located in the second display area, the area of ​​the second opening located in the first display area is smaller than the area of ​​the second opening located in the second display area, and the area of ​​the third opening located in the first display area is smaller than the area of ​​the third opening located in the second display area.

7. The display panel according to claim 6, characterized in that: In the display unit of the first display area, the distance between the first opening and the second opening is a first spacing, the distance between the first opening and the third opening is a second spacing, and the distance between the second opening and the third opening is a third spacing; In the second display area, the distance between the first opening and the second opening is a fourth spacing, the distance between the first opening and the third opening is a fifth spacing, and the distance between the second opening and the third opening is a sixth spacing. Wherein, the first spacing is greater than the fourth spacing; and / or, the second spacing is greater than the fifth spacing; and / or, the third spacing is greater than the sixth spacing; Preferably, the first spacing is P times the fourth spacing, the second spacing is Q times the fifth spacing, and the third spacing is R times the sixth spacing. Among them, P = Q = R; Preferably, in a first direction, the first opening and the second opening in the display unit are located on one side of the third opening; the first opening and the second opening in the display unit are distributed along a second direction, and the first direction intersects with the second direction.

8. The display panel according to claim 5, characterized in that: In the second display area, in a direction parallel to the substrate, a size of a cross section of at least a portion of the isolation structure located between adjacent isolation openings is smaller than a size of a cross section of the isolation structure at a corresponding position in the first display area; Preferably, the isolation structure includes a first conductive layer; the display panel further includes a first electrode layer, the first electrode layer is located on a side of the light-emitting layer away from the substrate, and is disconnected at the isolation opening to form mutually spaced first electrodes, and at least part of the first electrode is electrically connected to the first conductive layer; Preferably, the isolation structure includes a second layer and a third layer, the first conductive layer is located between the second layer and the third layer, the second layer is located on a side of the first conductive layer away from the substrate, and the orthographic projection of the first conductive layer on the substrate is located within an orthographic projection region of the second layer on the substrate; or, the third layer is located between the first conductive layer and the second layer, the second layer is located on a side of the first conductive layer away from the substrate, and the orthographic projection of the third layer on the substrate is located within an orthographic projection region of the second layer on the substrate; Preferably, the isolation structure further includes a pixel defining portion, and the first conductive layer is located on a side of the pixel defining portion facing away from the substrate.

9. A display device, characterized in that: A display panel comprising any one of claims 5 to 8.

10. A method for preparing a display panel, characterized in that: include: Preparing an isolation structure on a substrate, wherein the isolation structure encloses a plurality of isolation openings, wherein the isolation openings include a first opening, a second opening, and a third opening; A light-emitting layer is prepared on the substrate, the light-emitting layer includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit which are arranged at intervals from each other, the first light-emitting unit is located at the first opening, the second light-emitting unit is located at the second opening, the third light-emitting unit is located at the third opening, the first light-emitting unit, the second light-emitting unit and the third light-emitting unit form a display unit, and a plurality of the display units are arranged in an array; wherein the area of ​​the first opening located in the first display area is smaller than the area of ​​the first opening located in the second display area, the area of ​​the second opening located in the first display area is smaller than the area of ​​the second opening located in the second display area, and the area of ​​the third opening located in the first display area is smaller than the area of ​​the third opening located in the second display area.

Images