Display panel and electronic equipment
By optimizing the design of pixel area and partition structure in the OLED display panel, the problem of low resolution and material utilization is solved, and higher pixel opening area and display performance are achieved, suitable for AR and VR devices.
Patent Information
- Application Number
- CN202410306252.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2044-03-15
AI Technical Summary
The existing OLED display panels have problems with low resolution and low material utilization in mass production, which limits their application in AR and VR technologies.
By setting a multi-layer pixel area and partition structure in the display panel, the arrangement of pixel units and the design of overhangs are optimized, the width of the overhang structure is reduced, the pixel spacing is reduced, and the pixel opening area is increased, thereby improving resolution and material utilization .
It achieves higher pixel opening area and material utilization, improves the resolution and display performance of the display panel, and is suitable for AR and VR devices.
Smart Images

Figure CN118215355B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display panels, and in particular to a display panel and an electronic device. Background Art
[0002] OLED (Organic Light Emitting Display) includes active OLED display structure (AMOLED) and passive OLED display structure (PMOLED). The most common technologies in AMOLED mass production are FMM (Fine Metal Mask) evaporation and inkjet printing. Due to their inherent limitations, both technologies have defects such as low PPI (pixels per inch) and low material utilization. Summary of the invention
[0003] The present application provides a display panel and an electronic device, aiming to improve the resolution of the display panel and increase the material utilization rate.
[0004] In order to achieve the above technical effects, a technical solution adopted by the present application is: providing a display panel, comprising a driving substrate and a pixel definition layer arranged on the driving substrate, the pixel definition layer protruding from the driving substrate to form a first pixel area and a second pixel area located on both sides of the first pixel area along a first direction; a first partition structure is provided between the first pixel area and the second pixel area, the first partition structure comprising a first main body structure arranged on a side of the pixel definition layer away from the substrate and a first top structure located on the upper surface of the first main body structure and shielding the first main body structure; defining a portion of the first top structure extending out of the upper surface of the first main body structure as a first overhang; the display panel also includes:
[0005] a first sub-pixel;
[0006] a second sub-pixel;
[0007] A third sub-pixel, wherein the two second pixel regions are respectively provided with a third sub-pixel;
[0008] A second partition structure, the second partition structure includes a second main body structure disposed on a side of the pixel definition layer away from the substrate and a second top structure disposed on an upper surface of the second main body structure and shielding the second main body structure; a portion of the second top structure extending out of the upper surface of the second main body structure is defined as a second overhanging portion; a second partition structure is disposed between the first sub-pixel and the second sub-pixel; the first top structure and the second top structure respectively have a width direction, and the width of the second top structure is smaller than the width of the first top structure;
[0009] Among them, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction in the first pixel area; the first sub-pixel includes at least two first pixel units arranged at intervals along the first direction; the second sub-pixel includes at least two second pixel units arranged at intervals along the first direction; the first main structure is a conductive material, and the cathodes of the first pixel unit, the second pixel unit and the third sub-pixel are respectively connected to the first main structure; the first direction and the second direction are arranged at an angle.
[0010] In some examples, the number of the first sub-pixels is at least two groups, and two adjacent groups of first sub-pixels are arranged at intervals along the second direction;
[0011] The number of the second sub-pixels is two groups, and the two groups of second sub-pixels are respectively arranged at two sides of the first sub-pixel along the second direction.
[0012] In some examples, each third sub-pixel includes at least two third pixel units spaced apart along the second direction, each third pixel unit corresponds to at least one first pixel unit and at least one second pixel unit, and a cathode of the third pixel unit is connected to the first main structure; a second partition structure is further provided between the first pixel region and the second pixel region, and the second partition structure and the first partition structure are alternately provided along the second direction;
[0013] Among them, at least one third pixel unit is arranged corresponding to the first partition structure, and at least one third pixel unit is arranged corresponding to the second partition structure.
[0014] In some examples, the second partition structure between the first sub-pixel and the second sub-pixel is arranged to extend from one second pixel region to another second pixel region.
[0015] In some examples, one of the first sub-pixel and the second sub-pixel is a green sub-pixel and the other is a red sub-pixel, and an area of the green sub-pixel is greater than an area of the red sub-pixel.
[0016] In some examples, the third sub-pixel is a blue sub-pixel; the second partition structure between the first pixel region and the second pixel region is staggered in the first direction;
[0017] Along the first direction, the width of the green sub-pixel corresponding to the second partition structure is the first width, and the width of the red sub-pixel corresponding to the second partition structure is the second width, and the first width is greater than the second width;
[0018] Along the first direction, the width of the blue sub-pixel corresponding to the green sub-pixel of the first width is the third width, and the width of the blue sub-pixel corresponding to the red sub-pixel of the second width is the fourth width; the third width is smaller than the fourth width.
[0019] In some examples, the width of the third pixel unit corresponding to the first partition structure is smaller than the width of the third pixel unit corresponding to the second partition structure; the length of the third pixel unit corresponding to the first partition structure is greater than the length of the third pixel unit corresponding to the second partition structure.
[0020] In some examples, the third sub-pixel corresponds to at least one first pixel unit and at least one second pixel unit respectively; a second partition structure is further provided between the first pixel region and the second pixel region, and the second partition structure and the first partition structure are alternately provided along the second direction;
[0021] Each third sub-pixel is partially arranged corresponding to the first partition structure, and partially arranged corresponding to the second partition structure.
[0022] In some examples, a first partition structure is further provided between the first sub-pixel and the second sub-pixel, and the second partition structure and the first partition structure between the first sub-pixel and the second sub-pixel are alternately arranged along the first direction;
[0023] Part of the first pixel units are arranged corresponding to the second partition structure, and part of the first pixel units are arranged corresponding to the second partition structure; the second main body structure is made of conductive material, and the second main body structure is connected to the first main body structure.
[0024] The present application also provides an example of an electronic device, including a housing; and
[0025] As described in any one of the above display panels, the display panel is installed in the housing.
[0026] In the above scheme, by setting the first sub-pixel and the second sub-pixel in the first pixel area, the first sub-pixel has at least two first pixel units spaced apart along the first direction, and the second sub-pixel has at least two second pixel units spaced apart in the first direction, so that the same sub-pixels in the minimum repeated display unit are adjacent, and the overhang structure in the first sub-pixel and the second sub-pixel can be removed, so that the corresponding sub-pixel spacing is not limited by the width of the overhang structure, the same sub-pixel spacing is reduced, the pixel opening area is increased, the pixel material utilization rate is improved, and the resolution of the panel is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0028] Figure 1 It is a structural schematic diagram of an example of a display panel and a display unit of the present application;
[0029] Figure 2 yes Figure 1 A cross-sectional view taken along line 1A-1A;
[0030] Figure 3 yes Figure 1 A cross-sectional view taken along the 1B-1B direction;
[0031] Figure 4 yes Figure 1 A structural diagram of an example of a repeated state of multiple display units in a display panel;
[0032] Figure 5 is a structural schematic diagram of another example of a display panel-display unit of the present application;
[0033] Figure 6 yes Figure 5 A structural schematic diagram showing an example of a repeated state of multiple display units;
[0034] Figure 7 is a structural schematic diagram of another example of a display panel-display unit of the present application;
[0035] Figure 8 yes Figure 7 A schematic diagram of an example of a connection state between the first overhanging portion and the second overhanging portion;
[0036] Fig. 9 yes Figure 7 A schematic structural diagram of an example of a second partition structure;
[0037] Fig.10 yes Figure 7 A structural diagram of an example of a repeated state of multiple display units in a display panel;
[0038] Fig.11 is a structural diagram of yet another example of a display panel-display unit of the present application;
[0039] Fig.12 yes Fig.11 A structural diagram of an example of a repeated state of multiple display units in a display panel;
[0040] Fig.13 is a structural diagram of another example of a display panel-display unit of the present application;
[0041] Fig.14 yes Fig.13 A structural diagram of an example of a repeated state of multiple display units in a display panel.
[0042] Among them, 100, display unit; 10, driving substrate; 11, pixel definition layer; 111, first pixel area; 112, second pixel area; 12, first partition structure; 121, first main body structure; 122, first overhang; 123, first top structure; 13, second partition structure; 131, second main body structure; 132, second overhang; 133, second top structure; 20, first sub-pixel; 21, first pixel unit; 30, second sub-pixel; 31, second pixel unit; 40, third sub-pixel; 41, third pixel unit; 500, display panel; 600, shell; a, first direction; b, second direction. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.
[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0045] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.
[0046] The multiple terms in the examples of this application refer to at least two (including two).
[0047] The OLED display structure (hereinafter referred to as the display structure) generally includes an active OLED display structure and a passive OLED display structure. The display structure generally has a substrate and a plurality of sub-pixels arranged on the substrate, and each sub-pixel has a corresponding organic light-emitting material layer. The display structure has a substrate, and the substrate can be a glass substrate; it can also be a flexible substrate, wherein the material of the flexible substrate is polyimide (PI). The substrate has a driving side, and a driving circuit layer can be provided on the driving side of the substrate, and the driving circuit layer and the substrate are combined to form a driving substrate. The driving circuit layer in the example of the present application can be a TFT circuit layer, and the TFT circuit layer is used to drive the light-emitting layer of the OLED. The specific TFT circuit layer includes a plurality of driving circuit units arranged in an array, and each driving circuit unit may include a thin film transistor (TFT) device and a capacitor. Each driving circuit unit corresponds to an anode electrode and a light-emitting layer. The TFT device is a low temperature polysilicon (LTPS) type or a metal oxide semiconductor (MOS) type, such as a metal oxide semiconductor type of indium gallium zinc oxide (IGZO).
[0048] The light-emitting material layer in the active OLED includes an anode electrode, a light-emitting layer and a cathode layer electrode stacked in sequence. The anode electrode can be placed on the side surface of the TFT circuit layer away from the substrate. The anode electrode is multiple and spaced apart on the side surface of the TFT circuit layer. For example, multiple anode electrodes are arranged in an array, and each anode electrode corresponds to and is electrically connected to a driving circuit unit in the TFT circuit layer. The material of the anode electrode includes, but is not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, a combination thereof or other suitable conductive materials. The light-emitting layer is used to emit red light, blue light or green light when powered on. The light-emitting layer may include one or more of HIL (Hole Injection Layer), HTL (Hole Transfer Layer), EML (Emitting Layer) and ETL (Electron Transfer Layer). The cathode layer electrode is arranged on the side of the light-emitting layer away from the anode electrode, and the material of the cathode layer electrode includes, but is not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, a combination thereof or other suitable conductive materials. The material of the cathode layer electrode can be the same as or different from that of the anode electrode, and is set according to actual conditions. A filling layer and a cover plate can also be set on the side of the cathode layer electrode away from the substrate, wherein the cover plate can be a glass cover plate or other materials.
[0049] In the process of display panel manufacturing, due to the inherent defects of FMM evaporation and inkjet printing technology, the panels produced have defects such as low resolution and low utilization rate of organic light-emitting materials, making them unable to be used in AR (Augmented Reality) and VR (Virtual Reality).
[0050] In some cases, the photolithography OLED can retain the advantage of high uniformity of evaporation, while removing the limitations of FMM. The pixel lithography is usually completed with an overhang structure to shorten the distance between pixels and increase the pixel opening area. The overhang structure is affected by the evaporation angle and the cathode overlap, and its width cannot be shortened to the limit, so the pixel opening area also has an upper limit. In the example of this application, by improving the pixel arrangement and the first overhang, the width of the overhang structure is reduced or even the overhang structure is removed, thereby reducing the pixel spacing, thereby increasing the pixel opening area, improving the resolution of the panel and the utilization rate of the organic light-emitting material, and also facilitating the use of the display panel in devices such as AR or VR.
[0051] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4The present application discloses a display panel 500, including a driving substrate 10 and a pixel definition layer 11 disposed on the driving substrate 10, wherein the pixel definition layer 11 protrudes from the driving substrate 10 to form a first pixel area 111 and second pixel areas 112 located on both sides of the first pixel area 111 along a first direction a; a first partition structure 12 is provided between the first pixel area 111 and the second pixel area 112, and the first partition structure 12 includes a first main body structure 121 disposed on a side of the pixel definition layer 11 away from the substrate and a first top structure 123 located on the upper surface of the first main body structure 121 and shielding the first main body structure 121; a portion of the first top structure 123 extending out of the upper surface of the first main body structure 121 is defined as a first partition structure 121; A hanging portion 122; the display panel 500 also includes a first sub-pixel 20, a second sub-pixel 30 and a third sub-pixel 40; the two second pixel areas 112 are respectively provided with a third sub-pixel 40; wherein the first sub-pixel 20 and the second sub-pixel 30 are arranged at intervals along the second direction b in the first pixel area 111; the first sub-pixel 20 includes at least two first pixel units 21 arranged at intervals along the first direction a; the second sub-pixel 30 includes at least two second pixel units 31 arranged at intervals along the first direction a; the first main structure 121 is a conductive material, and the cathodes of the first pixel unit 21, the second pixel unit 31 and the third sub-pixel 40 are respectively connected to the first main structure; the first direction a and the second direction b are arranged at an angle.
[0052] The driving substrate 10 may include a glass substrate and a driving circuit layer as described above. The driving substrate 10 has a display side, and the pixel definition layer 11 is arranged on the display side of the driving substrate 10. The pixel definition layer 11 forms a plurality of spaced protrusion structures on the display side of the driving substrate 10, and the plurality of protrusion structures define a first pixel area 111 and a second pixel area 112, wherein the second pixel area 112 is arranged on both sides of the first pixel area 111 along the first direction a. The pixel definition layer 11 in this example may be made of an organic material, such as polyimide, etc.; the pixel definition layer 11 may also be made of an inorganic material, such as silicon oxide (SiO2), silicon nitride (Si3N4), silicon oxynitride (SiON), magnesium fluoride (MgF2) or a combination thereof. The first partition structure 12 in this example may be a conductive material.
[0053] In the example of the present application, a first pixel region 111 and two second pixel regions 112 can form a display unit 100, the first pixel region 111 can be the region between the two first partition structures 12 in the display unit 100, the second pixel region 112 is arranged on both sides of the first pixel region 111 along the first direction a, the third sub-pixel 40 has a distal end away from the first pixel region 111 along the first direction a, the second pixel region 112 can be the region between the first partition structure 12 and the distal end of the corresponding third sub-pixel 40, the second pixel region 112 can also be the region between the first partition structure 12 and the distal outer side of the corresponding third sub-pixel 40, and the example of the present application is described by taking the second pixel region 112 from the first partition structure 12 to the distal end of the third sub-pixel 40 as an example. The display unit 100 in this example can be used as a repeated display unit 100, and when a plurality of display units 100 are combined to form a display panel 500, the plurality of repeated display units can be arranged in an array, and the second pixel regions 112 of two adjacent display units are arranged adjacently. Optionally in this example, the display unit 100 is arranged in a rectangular shape. Further optionally, the first sub-pixel 20, the second sub-pixel 30 and the third sub-pixel 40 in the example of the present application can be arranged in a rectangular shape.
[0054] The first pixel area 111 is provided with a first sub-pixel 20 and a second sub-pixel 30, and the first sub-pixel 20 and the second sub-pixel 30 are arranged at intervals along the second direction b. In this example, the first direction a and the second direction b are arranged at an angle. Optionally, in this example, the first direction a can be arranged perpendicular to the second direction b. The first pixel unit 21 can be one of RGB organic light-emitting materials, and the second pixel unit 31 can be another of RGB organic light-emitting materials.
[0055] In the first pixel area 111, the first sub-pixel 20 includes at least two first pixel units 21, and the multiple first pixel units 21 are arranged at intervals along the first direction a; the second sub-pixel 30 includes at least two second pixel units 31, and the multiple second pixel units 31 are arranged at intervals along the first direction a, so that there are multiple pixel units of the same color in the first pixel area 111.
[0056] A third sub-pixel 40 is respectively arranged in the two second pixel regions 112, and the third sub-pixel 40 can be one of the RGB organic light-emitting materials; in some examples, no partition structure is arranged between the blue sub-pixels, and the cathodes of adjacent blue sub-pixels can be connected into an integrated structure; no partition structure is arranged between adjacent red sub-pixels, and the cathodes of adjacent red sub-pixels can be connected into an integrated structure; no partition structure is arranged between adjacent green sub-pixels, and the cathodes of adjacent green sub-pixels can be connected into an integrated structure. Optionally, in this example, the first pixel unit 21 can be a red sub-pixel made of a red organic light-emitting material, the second pixel unit 31 can be a green sub-pixel made of a green organic light-emitting material, and the third sub-pixel 40 can be a blue sub-pixel made of a blue organic light-emitting material.
[0057] Please refer to Figure 4 The repeated display units formed by the display units 100 in this example are combined with each other to form a display panel 500, and the third sub-pixels 40 of adjacent display units 100 are arranged adjacent to each other. Since the third sub-pixels 40 of adjacent display units 100 are made of the same organic light-emitting material, no overhang structure may be arranged between the third sub-pixels 40 of adjacent display units 100.
[0058] In this example, a first partition structure 12 is provided between the first pixel area 111 and the second pixel area 112. The first partition structure 12 includes a first main body structure 121 and a first top structure 123, wherein the first main body structure 121 may be made of a conductive material. The first main body structure 121 has a distal end away from the drive substrate 10, and a first top structure 123 is provided on the distal end of the first main body structure 121. The first top structure 123 shields the first main body structure 121, and the portion of the first top structure 123 extending out of the upper surface of the first main body structure 121 is the first overhang 122. In this example, the first main body structure 121 may be connected to the cathodes of the first pixel unit 21, the second pixel unit 31, and the third sub-pixel 40, so that the cathodes of the plurality of sub-pixels have the same potential.
[0059] In this example, since the same pixel units in the first pixel area 111 of a single display unit 100 are arranged adjacently, on the one hand, the overhang structure between the same pixel units in the first pixel area 111 can be removed, so that the spacing between adjacent first pixel units 21 and the spacing between adjacent second pixel units 31 are not limited by the width of the overhang structure, the spacing between the same pixel units is reduced, the opening area of the first sub-pixel 20 and the second sub-pixel 30 is increased, the utilization rate of materials is improved, and the product life is increased; on the other hand, the second partition structure is not limited by the requirements of the cathode wire resistance of the first sub-pixel 20, the second sub-pixel 30 and the third sub-pixel 40, and the width of the gap between the first sub-pixel 20, the second sub-pixel 30 and the third sub-pixel 40 can be reduced, thereby shortening the spacing between different sub-pixels and increasing the pixel opening area. When a plurality of display units 100 are combined to form a display panel 500, the third sub-pixels 40 of the plurality of display units 100 are arranged adjacently, so that the width of the gap between the third sub-pixels 40 of the adjacent display units 100 can be reduced, and the opening area of the third sub-pixel 40 can be increased. In this example, by providing at least two first pixel units 21, at least two second pixel units 31, and respectively providing third sub-pixels 40 in the two second pixel regions 112, the number of pixels can be increased and the resolution of the display unit 100 can be improved. Since the width of the gap between adjacent first pixel units 21 and adjacent second pixel units 31 can be reduced in this example, when the display unit 100 is used in the display panel 500, it is convenient to integrate the display unit 100 into an AR or VR device, improve the resolution of the AR or VR device, and improve the display performance of the AR or VR device.
[0060] Please refer to Figure 1 and Figure 3 The display panel 500 also includes a second partition structure 13, which includes a second main structure 131 disposed on the side of the pixel definition layer 11 away from the substrate and a second top structure 133 located on the upper surface of the second main structure 131 and shielding the second main structure 131; the portion of the second top structure 133 extending out of the upper surface of the second main structure 131 is defined as a second overhang 132; the second partition structure 13 is provided between the first sub-pixel 20 and the second sub-pixel 30. The second partition structure 13 in this example is provided between the first sub-pixel 20 and the second sub-pixel 30, and can be used to enhance the packaging effect of the display unit 100; the second main structure 131 has a distal end away from the drive substrate 10, and the second top structure 133 is provided at the distal end of the second main structure 131, and the second main structure 131 can play a role in isolating different sub-pixels from each other. Please refer to Figure 1 and Figure 4Optionally, when a plurality of display units 100 are arranged in an array to form a display panel 500, a second partition structure 13 may be provided between sub-pixels of different colors of adjacent display units 100. In some examples, the second main structure 131 is made of an insulating material so that the second overhanging portion 132 is used to partition different sub-pixels to improve the packaging effect of the display unit 100.
[0061] Please refer to Figure 2 and Figure 3 In some examples, the first top structure 123 and the second top structure 133 each have a width direction, and the width d2 of the second top structure 133 is smaller than the width d1 of the first top structure 123. Figure 1 As shown in FIG. 1 , the width direction of the first top structure 123 is Figure 1 The length direction of the first top structure 123 is Figure 1 b direction in the second top structure 133; the width direction of the second top structure 133 is Figure 1 b direction in the longitudinal direction of the second top structure 133 is Figure 1 In the a direction. In this example, the width d2 of the second top structure 133 is less than the width d1 of the first top structure 123, so that the width of the second top structure 133 is reduced as much as possible. Taking the second top structure 133 formed by photolithography as an example, the second top structure 133 can meet the photolithography requirements. In this example, by reducing the width d2 of the second top structure 133, the opening of the sub-pixel can be increased, thereby improving the display performance of the display panel 500.
[0062] See also Figure 5 and Figure 6 In some examples, the number of first sub-pixels 20 is at least two groups, and two adjacent groups of first sub-pixels 20 are arranged at intervals along the second direction b; the number of second sub-pixels 30 is at least two groups, and the two groups of second sub-pixels 30 are respectively arranged on both sides of the first sub-pixel 20 along the second direction b.
[0063] like Figure 5 As shown in , multiple groups of first sub-pixels 20 are arranged at intervals along the second direction b, and multiple groups of second sub-pixels 30 are arranged on both sides of the first sub-pixel 20 along the second direction b, so that the second sub-pixels 30 are arranged in the first pixel area 111 close to the edge position of the first pixel area 111 in the second direction b, so as to facilitate the formation of the first sub-pixel 20 and the second sub-pixel 30. In the example of the present application, the first partition structure 12 can be extended along the second direction b. In some examples, the display unit 100 is provided with the second partition structure 13 described in the above example, and the second partition structure 13 can be arranged on both sides of the first sub-pixel 20 along the second direction b to separate the first sub-pixel 20 and the second sub-pixel 30, which is also convenient for the formation of the display unit 100.
[0064] In this example, at least two groups of first sub-pixels 20 are arranged, and multiple groups of second sub-pixels 30 are arranged on both sides of the first sub-pixel 20 along the second direction b, so that in a single display unit 100, two first sub-pixels 20 are arranged adjacent to each other, and no overhang structure is arranged between adjacent first sub-pixels 20 for separation, thereby simplifying the structure of the display unit 100, improving the aperture ratio of the display unit 100, and correspondingly improving the display performance of the display unit 100. In this example, when multiple display units 100 are combined to form a display panel 500, the second sub-pixels 30 of adjacent display units 100 can be arranged adjacent to each other, and no overhang structure can be arranged between the second sub-pixels 30 of adjacent display units 100, which helps to improve the aperture ratio of the display panel 500. Since each first sub-pixel 20 in this example includes at least two first pixel units 21, and each second sub-pixel 30 includes at least two second pixel units 31, the resolution of the display unit 100 can be improved by increasing the number of first sub-pixels 20 and second sub-pixels 30.
[0065] Please continue reading Figure 4 and Figure 5, each third sub-pixel 40 includes at least two third pixel units 41 spaced apart along the second direction b, each third pixel unit 41 corresponds to at least one first pixel unit 21 and at least one second pixel unit 31, and the first main body structure 121 is connected to the cathode of the third pixel unit 41. In this example, the first partition structure 12 can be extended along the second direction b to separate the first pixel area 111 from the second pixel area 112, and the third pixel unit 41, the second pixel unit 31 and the first pixel unit 21 are separated by the first main body structure 121. Since each third pixel unit 41 corresponds to at least one first pixel unit 21 and the second pixel unit 31 in this example, it is convenient to set the first partition structure 12 between the first pixel unit 21, the second pixel unit 31 and the third pixel unit 41 for separation, and the first main body structure 121 can also be better connected to the cathodes of the first pixel unit 21, the second pixel unit 31 and the third pixel unit 41, so that the cathodes of the first pixel unit 21, the second pixel unit 31 and the third pixel unit 41 in the display unit 100 form an equipotential. In this example, by providing a plurality of third pixel units 41 in each third sub-pixel 40, the number of pixels in the second pixel region 112 can be increased, thereby improving the resolution of the display unit 100. Since the third sub-pixel 40 in this example is provided in the second pixel region 112, when a plurality of display units 100 are combined to form a display panel 500, the third sub-pixels 40 of adjacent display units 100 are provided adjacent to each other, and a partition structure of an overhanging structure may not be provided between the third pixel units 41 of adjacent display units 100, thereby improving the aperture ratio of the display panel 500 and improving the resolution of the display panel 500.
[0066] See also Figure 7 and Figure 8 In some examples, a second partition structure 13 is further provided between the first pixel area 111 and the second pixel area 112, and the second partition structure 13 and the first partition structure are alternately arranged along the second direction b; wherein at least one third pixel unit 41 is arranged corresponding to the first partition structure 12, and at least one third pixel unit 41 is arranged corresponding to the second partition structure 13.
[0067] In this example, the first partition structure 12 and the second partition structure 13 are alternately arranged along the second direction b. On the one hand, by making the first top structure 123 and the second top structure 133 have different widths, the width of the overhanging structure is reduced, thereby improving the aperture ratio of the display unit 100; on the other hand, by adopting the alternating arrangement of the first partition structure 12 and the second partition structure 13, the two partition structures can be distributed more evenly, thereby improving the stability of the cathode signal.
[0068] In some examples, the second partition structure 13 between the first sub-pixel 20 and the second sub-pixel 30 is extended from one of the second pixel regions 112 to the other second pixel region 112. In this example, the second partition structure 13 is disposed between the first sub-pixel 20 and the second sub-pixel 30, and the second partition structure 13 between the first sub-pixel 20 and the second sub-pixel 30 isolates the first sub-pixel 20 and the adjacent second sub-pixel 30 from each other along the second direction b.
[0069] In some examples, one of the first sub-pixel 20 and the second sub-pixel 30 is a green sub-pixel, and the other is a red sub-pixel, and the area of the green sub-pixel is larger than the area of the red sub-pixel. For example, the length of the green sub-pixel along the second direction b is larger than the length of the red sub-pixel along the second direction b; since green is more easily attenuated than red, in this example, the area of the green sub-pixel is relatively larger, which can be used to compensate for the green sub-pixel. That is, in this example, the area of the green sub-pixel can be compensated by changing the second partition structure 13. Specifically, compared with the red sub-pixel, the width of the second partition structure corresponding to the green sub-pixel is smaller, and the width of the second partition structure 13 is reduced to compensate for the width of the green sub-pixel, so that the area of the green sub-pixel is larger than that of the red sub-pixel.
[0070] See also Fig. 9In some examples, the third sub-pixel 40 is a blue sub-pixel, and the second partition structure 13 between the first pixel area 111 and the second pixel area 112 is staggered in the first direction a. The second partition structure 13 between the first pixel area 111 and the second pixel area 112 is staggered in the first direction a, so that the second partition structure 13 between the first pixel area 111 and the second pixel area 112 is in a segmented form. In this example, optionally, part of the second partition structure 13 is offset toward the blue sub-pixel close to the corresponding side, and the width of the first pixel area 111 between the first partition structure 12 and the second partition structure 13 along the first direction a changes. In this example, the width of the second partition structure 13 between the first pixel area 111 and the second pixel area 112 along the first direction a may be changed, so that the second partition structure 13 between the first pixel area 111 and the second pixel area 112 is misaligned, or the second partition structure 13 between the first pixel area 111 and the second pixel area 112 may be staggered along the second direction b, so that the second partition structure 13 between the first pixel area 111 and the second pixel area 112 is misaligned. Optionally, in this example, along the first direction a, the width of the green sub-pixel corresponding to the second partition structure 13 is the first width 9a, and the width of the red sub-pixel corresponding to the second partition structure 13 is the second width 9b, and the first width 9a is greater than the second width 9b. In this example, the second partition structure 13 is the second partition structure between the first pixel area and the second pixel area. In this example, the first width 9a and the second width 9b are the widths of the corresponding areas of the green sub-pixel and the red sub-pixel along the second direction b. The width of the green sub-pixel corresponding to the second partition structure 13 along the first direction a is a first width 9a, and the width of the red sub-pixel corresponding to the second partition structure 13 along the first direction a is a second width 9b, wherein the first width 9a is greater than the second width 9b, so that on the premise that the lengths of the green sub-pixel and the red sub-pixel along the second direction b are the same, the width of the green sub-pixel along the first direction a is greater than the width of the red sub-pixel along the first direction a, thereby increasing the width of the green sub-pixel in the corresponding area in the first direction a to compensate for the area of the green sub-pixel, thereby improving the problem of easy attenuation of the green sub-pixel.
[0071] In some examples, the difference from the previous example is that the width of the blue sub-pixel corresponding to the green sub-pixel of the first width 9a is the third width 9c, and the width of the blue sub-pixel corresponding to the red sub-pixel of the second width 9b is the fourth width 9d, and the third width 9c is smaller than the fourth width 9d. The third width 9c and the fourth width 9d in this example are the widths of the blue sub-pixels at the corresponding positions along the first direction a. There is a difference in the width of the area of the second partition structure 13 corresponding to the blue sub-pixel in the first direction a, wherein the width of the blue sub-pixel corresponding to the green sub-pixel is the third width 9c, and the width of the blue sub-pixel corresponding to the red sub-pixel is the fourth width 9d, so that the part of the blue sub-pixel corresponding to the green sub-pixel can give up a certain position; the part of the blue sub-pixel corresponding to the red sub-pixel can have a larger width to compensate for the width given up by the blue sub-pixel corresponding to the green sub-pixel area, to compensate for the area of the blue sub-pixel, to compensate for the problem that the blue sub-pixel is easily attenuated.
[0072] In some examples, the first width 9a is greater than the second width 9b, and the third width 9c is less than the fourth width 9d, so as to compensate for both the blue sub-pixel and the green sub-pixel.
[0073] In some examples, the width of the third pixel unit 41 corresponding to the first partition structure 12 is smaller than the width of the third pixel unit 41 corresponding to the second partition structure 13, so that when the width of the first top structure 123 is greater than the width of the second top structure 133, the areas of the third pixel unit 41 corresponding to the first partition structure 12 and the third pixel unit 41 corresponding to the second partition structure 13 can be controlled so that the areas of the third pixel units 41 are close to or equal, thereby making the third pixel units 41 at different positions have close or equal effective light-emitting areas.
[0074] In some examples, the difference from the previous example is that the length of the third pixel unit 41 corresponding to the first partition structure 12 is greater than the length of the third pixel unit 41 corresponding to the second partition structure 13, so that when the width of the first top structure 123 is greater than the width of the second top structure 133, the areas of the third pixel unit 41 corresponding to the first partition structure 12 and the third pixel unit 41 corresponding to the second partition structure 13 can be controlled so that the areas of the third pixel units 41 are close to or equal, and thus the third pixel units 41 at different positions have close or equal effective light-emitting areas.
[0075] In some examples, the width of the third pixel unit 41 corresponding to the first partition structure 12 is smaller than the width of the third pixel unit 41 corresponding to the second partition structure 13, and the length of the third pixel unit 41 corresponding to the first partition structure 12 is greater than the length of the third pixel unit 41 corresponding to the second partition structure 13.
[0076] Please refer to Fig.10 , Fig.11 and Fig.12 In some examples, the third sub-pixel 40 corresponds to at least one first pixel unit 21 and at least one second pixel unit 31 respectively; a second partition structure 13 is further provided between the first pixel area 111 and the second pixel area 112, and the second partition structure 13 and the first partition structure are alternately arranged along the second direction b; wherein each third sub-pixel 40 is partially arranged corresponding to the first partition structure 12, and partially arranged corresponding to the second partition structure 13. In this example, the first partition structure 12 can be extended along the second direction b to separate the first pixel area 111 and the second pixel area 112, and the third sub-pixel 40, the second pixel unit 31 and the first pixel unit 21 are separated by the first partition structure 12. Since each third sub-pixel 40 in this example can correspond to at least one first pixel unit 21 and at least one second pixel unit 31 respectively, it is convenient to arrange the first partition structure 12 between the first pixel unit 21, the second pixel unit 31 and the third sub-pixel 40 for separation. In some examples, the width of the third sub-pixel 40 corresponding to the first top structure 123 is smaller than the width of the third sub-pixel 40 corresponding to the second top structure 133, so that when the width d1 of the first top structure 123 is greater than the width d2 of the second top structure 133, the area of the third sub-pixel 40 corresponding to the first partition structure 12 and the third sub-pixel 40 corresponding to the second partition structure 13 can be controlled to make the area of the third sub-pixel 40 close to or equal, thereby making the third sub-pixels 40 at different positions have close or equal effective light-emitting areas. In this example, when a plurality of display units 100 are combined to form a display panel 500, the plurality of display units 100 in the display panel 500 can be distributed in an array, and the third pixel units 41 of adjacent display units 100 are correspondingly arranged.
[0077] Please refer to Fig.13 and Fig.14In some examples, a first partition structure 12 is further provided between the first sub-pixel 20 and the second sub-pixel 30, and the second partition structure 13 and the first partition structure 12 between the first sub-pixel 20 and the second sub-pixel 30 are alternately arranged along the first direction a; wherein, part of the first pixel unit 21 is arranged corresponding to the second partition structure 13, and part of the first pixel unit 21 is arranged corresponding to the second partition structure 13; the second main structure of the second partition structure 13 is a conductive material, and the second main structure is connected to the first main structure. In this example, by providing the first partition structure 12 between the first sub-pixel 20 and the second sub-pixel 30, the second partition structure 13 is arranged adjacent to the first partition structure 12, so that the cathodes of the first pixel unit 21 and the second pixel unit 31 can be connected to the first main structure 121, and the cathodes of the first pixel unit 21 and the second pixel unit 31 can form an equipotential. In this example, when multiple display units 100 are combined to form a display panel 500, the multiple display units 100 in the display panel 500 can be distributed in an array, and the third sub-pixels 40 of adjacent display units 100 are set accordingly. A second partition structure 13 can be set between the different color sub-pixels of adjacent display units 100 to isolate different sub-pixels from each other.
[0078] In summary, the present application selects partition structures of different widths, and sets the positions of the first partition structure 12 and the second partition structure 13 in accordance with the specific pixel arrangement method. In this way, the first partition structure 12 with a larger width can be used to realize the electrical connection of the cathodes of the pixel units on both sides thereof, that is, the first partition structure 12 with a larger width can meet the requirements of the evaporation angle of the cathode, so that the cathode and the first main structure 121 have a larger overlap area; and the second partition structure 13 with a smaller width does not need to play the role of overlapping the cathode, but it can provide a larger area for the pixel unit. It should be noted that although the setting of the second partition structure 13 makes some adjacent cathodes not electrically connected through the first main structure 121, each cathode is electrically connected to another cathode through the first main structure 121 on at least one side, or is directly connected to the cathode of another sub-pixel of the same color on at least one side as an integrated structure, so that all cathodes can still be electrically connected as a whole cathode network as a whole, so as to share the same cathode voltage.
[0079] It can be understood that the example of the display panel 500 of the present application includes all the examples of the above-mentioned display structure, and also includes all the technical effects of the examples of the above-mentioned display structure, so it will not be repeated.
[0080] The present application also proposes an example of an electronic device, including a housing 600 and a display panel 500 as described in any of the above examples, wherein the display panel 500 is mounted on the housing 600. The housing 600 in this example may be a housing of an electronic device, or an external component on an electronic device for mounting the display panel 500. The electronic device in this example may be an AR / VR device, and the display panel 500 may be used in a display module of the AR / VR device.
[0081] It can be understood that the examples of the electronic device of the present application include all the examples of the above-mentioned display panel, and also include all the technical effects of the examples of the above-mentioned display panel, so they will not be repeated.
[0082] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A display panel, comprising a driving substrate and a pixel definition layer arranged on the driving substrate, characterized in that: The pixel definition layer protrudes from the driving substrate to form a first pixel area and second pixel areas located on both sides of the first pixel area along a first direction; a first partition structure is provided between the first pixel area and the second pixel area, and the first partition structure includes a first main body structure provided on a side of the pixel definition layer away from the substrate and a first top structure located on an upper surface of the first main body structure and shielding the first main body structure; The portion of the first top structure extending out of the upper surface of the first main body structure is defined as a first overhanging portion; The display panel further includes: a first sub-pixel; a second sub-pixel; A third sub-pixel, each of the two second pixel regions is provided with the third sub-pixel; and a second partition structure, the second partition structure comprising a second main body structure disposed on a side of the pixel definition layer away from the substrate and a second top structure disposed on an upper surface of the second main body structure and shielding the second main body structure; a portion of the second top structure extending out of the upper surface of the second main body structure is defined as a second overhanging portion; the second partition structure is disposed between the first sub-pixel and the second sub-pixel; the first top structure and the second top structure respectively have a width direction, and the width of the second top structure is smaller than the width of the first top structure; Among them, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction in the first pixel area; the first sub-pixel includes at least two first pixel units arranged at intervals along the first direction; the second sub-pixel includes at least two second pixel units arranged at intervals along the first direction; the first main structure is made of conductive material, and the cathodes of the first pixel unit, the second pixel unit and the third sub-pixel are respectively connected to the first main structure; the first direction is arranged at an angle to the second direction.
2. The display panel according to claim 1, wherein: The number of the first sub-pixels is at least two groups, and two adjacent groups of the first sub-pixels are arranged at intervals along the second direction; The number of the second sub-pixels is at least two groups, and the second sub-pixels are respectively arranged on two sides of the first sub-pixel along the second direction.
3. The display panel according to claim 1, wherein: Each of the third sub-pixels includes at least two third pixel units spaced apart along the second direction, each of the third pixel units corresponds to at least one of the first pixel units and at least one of the second pixel units, and a cathode of the third pixel unit is connected to the first main structure; a second partition structure is further provided between the first pixel region and the second pixel region, and the second partition structure and the first partition structure are alternately provided along the second direction; Among them, at least one of the third pixel units is arranged corresponding to the first partition structure, and at least one of the third pixel units is arranged corresponding to the second partition structure.
4. The display panel according to claim 3, wherein: The second partition structure between the first sub-pixel and the second sub-pixel is arranged to extend from one of the second pixel regions to another of the second pixel regions.
5. The display panel according to claim 3, wherein: The first sub-pixel is a green sub-pixel, the second sub-pixel is a red sub-pixel, and an area of the green sub-pixel is greater than an area of the red sub-pixel.
6. The display panel according to claim 5, wherein: The third sub-pixel is a blue sub-pixel; the second partition structure between the first pixel region and the second pixel region is staggered in the first direction; Along the first direction, the width of the green sub-pixel corresponding to the second partition structure is a first width, and the width of the red sub-pixel corresponding to the second partition structure is a second width, and the first width is greater than the second width; Along the first direction, the width of the blue sub-pixel corresponding to the green sub-pixel of the first width is a third width, and the width of the blue sub-pixel corresponding to the red sub-pixel of the second width is a fourth width; the third width is smaller than the fourth width.
7. The display panel according to claim 3, wherein: The width of the third pixel unit corresponding to the first partition structure is smaller than the width of the third pixel unit corresponding to the second partition structure; the length of the third pixel unit corresponding to the first partition structure is greater than the length of the third pixel unit corresponding to the second partition structure.
8. The display panel according to claim 2 or 3, characterized in that: The third sub-pixels correspond to at least one of the first pixel units and at least one of the second pixel units respectively; the second partition structure is further provided between the first pixel area and the second pixel area, and the second partition structure and the first partition structure are alternately provided along the second direction; Each of the third sub-pixels is partially arranged corresponding to the first partition structure, and partially arranged corresponding to the second partition structure.
9. The display panel according to claim 8, wherein: The first partition structure is further disposed between the first sub-pixel and the second sub-pixel, and the second partition structure and the first partition structure between the first sub-pixel and the second sub-pixel are alternately disposed along the first direction; Part of the first pixel units corresponds to the second partition structure, and part of the first pixel units corresponds to the second partition structure; the second main body structure is made of conductive material, and the second main body structure is connected to the first main body structure.
10. An electronic device, characterized in that: include: case; as well as The display panel according to any one of claims 1 to 9, wherein the display panel is mounted on the housing.
Citation Information
Cited By
Display panel and electronic device
WO2025190045A1
