A display panel, a display device and a manufacturing method of a display panel

Abstract

The application discloses a display panel, a display device and a manufacturing method of the display panel, and relates to the technical field of display panels. The display panel comprises: a plurality of display modules arranged along a first direction and detachably connected; the display module comprises a plurality of pixel units arranged along a second direction; the pixel unit comprises at least three sub-pixels of different light-emitting colors arranged in a third direction in sequence, wherein the third direction is the light-emitting direction of the display panel, and the first direction, the second direction and the third direction are perpendicular to each other; the sub-pixel comprises a pixel driving circuit and a light-emitting sub-unit connected with the pixel driving circuit, and in the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit; and the pixel driving circuit has light transmission property. The application provides a display panel, a display device and a manufacturing method of the display panel, and can improve the resolution of the display panel and flexibly adjust the resolution and display area of the display panel.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a display panel, a display device, and a method for manufacturing the display panel. Background Technology

[0002] With the development of display panels, users have increasingly higher requirements for display performance. Existing display panels suffer from low resolution and fixed resolution and display area after manufacturing. Summary of the Invention

[0003] This invention provides a display panel, a display device, and a method for manufacturing the display panel, which can improve the resolution of the display panel and flexibly adjust the resolution and display area of ​​the display panel.

[0004] According to one aspect of the present invention, a display panel is provided, the display panel comprising: a plurality of display modules arranged along a first direction and detachably connected;

[0005] The display module includes a plurality of pixel units arranged along the second direction;

[0006] The pixel unit includes at least three sub-pixels of different emitting colors arranged sequentially in a third direction, wherein the third direction is the light emission direction of the display panel, and the first direction, the second direction and the third direction are perpendicular to each other;

[0007] The sub-pixel includes a pixel driving circuit and a light-emitting sub-unit connected to the pixel driving circuit. In the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit; the pixel driving circuit is transparent.

[0008] Optionally, in the pixel unit, the light-emitting sub-unit includes an anode layer, an organic material layer, and a cathode layer sequentially stacked in the first direction; a pixel definition layer is included between the light-emitting sub-units of two adjacent sub-pixels; the pixel driving circuit is located within the pixel definition layer; and the pixel definition layer is transparent.

[0009] Optionally, the anode layer includes a first light guide layer;

[0010] The cathode layer includes a second light guide layer;

[0011] The first light guide layer, the organic material layer, and the second light guide layer are arranged sequentially along the first direction;

[0012] Both the first light guide layer and the second light guide layer are used to allow light in the organic material layer to be emitted in the third direction.

[0013] Optionally, the anode layer includes a third light guide layer;

[0014] The cathode layer includes a fourth light guide layer;

[0015] The third light guide layer, the organic material layer, and the fourth light guide layer are arranged sequentially in the third direction;

[0016] Both the third light guide layer and the fourth light guide layer are located in the pixel definition layer;

[0017] Both the third and fourth light guide layers are used to allow light from the organic material layer to exit along the third direction.

[0018] Optionally, the display module further includes a control unit;

[0019] The control unit is used to control the light emission state of each sub-pixel.

[0020] Optionally, the display panel provided in this embodiment also includes a control module;

[0021] The control module is connected to the control unit in each of the display modules;

[0022] The control module is used to control the working state of each of the control units.

[0023] Optionally, the at least three sub-pixels with different emission colors include a red-emitting sub-pixel, a blue-emitting sub-pixel, and a green-emitting sub-pixel;

[0024] In the pixel unit, the blue photoluminescent sub-pixel is closest to the light-emitting surface of the display panel.

[0025] Optionally, in the pixel unit, the at least three sub-pixels with different emission colors are connected to different data lines, and the at least three sub-pixels with different emission colors are connected to the same emission control line.

[0026] According to another aspect of the present invention, a display device is provided, the display device including the display panel provided in any embodiment of the present invention.

[0027] According to another aspect of the present invention, a method for manufacturing a display panel is provided, the method comprising the following steps:

[0028] Multiple display modules are formed and detachably connected along a first direction; wherein, each display module includes multiple pixel units arranged along a second direction; each pixel unit includes at least three sub-pixels of different emitting colors arranged sequentially in a third direction, wherein the third direction is the light emission direction of the display panel, and the first direction, the second direction, and the third direction are perpendicular to each other; each sub-pixel includes a pixel driving circuit and a light-emitting sub-unit, the pixel driving circuit is connected to the light-emitting sub-unit, and in the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit; the pixel driving circuit is transparent.

[0029] This embodiment provides a display panel comprising multiple display modules arranged along a first direction. Adjacent display modules are detachably connected, allowing for flexible adjustment of the number of display modules and thus the display area. The number of display modules can be controlled by adjusting the size of the connection between adjacent display modules, thereby controlling the display panel's resolution. Each display module includes multiple pixel units arranged along a second direction. Each pixel unit includes multiple sub-pixels of different emitting colors, arranged sequentially along a third direction, which is the light-emitting direction of the display panel. A single pixel unit can emit different colors of light. Within a unit display area, the resolution of the display panel changes when the number of pixel units provided in this embodiment changes. Each sub-pixel includes a pixel driving circuit and a light-emitting sub-unit. For a single pixel unit, in the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit, thereby reducing the size of the pixel unit in the first direction and thus reducing the spacing between adjacent pixels in the first direction, improving the display panel's resolution. In summary, the display panel provided in this embodiment can improve the display panel's resolution and flexibly adjust both the resolution and display area.

[0030] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of a display module according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of a pixel unit structure provided according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of another pixel unit structure provided by an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of another pixel unit structure provided by an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of another pixel unit structure provided by an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of another display module provided according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of another display panel provided according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of another display panel provided according to an embodiment of the present invention;

[0041] Figure 10 This is a flowchart illustrating a method for manufacturing a display panel according to an embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of the structure of a motherboard for a display panel according to an embodiment of the present invention;

[0043] Figure 12 It is along Figure 11 A schematic diagram of the structure obtained by dissecting along anatomical lines A1A2. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0046] Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a display module according to an embodiment of the present invention. Figure 3 This is a schematic diagram of a pixel unit structure provided according to an embodiment of the present invention, with reference to... Figures 1-3 The display panel provided in this embodiment includes: a plurality of display modules 100 arranged along a first direction X and detachably connected; each display module 100 includes a plurality of pixel units 110 arranged along a second direction Y; each pixel unit 110 includes at least three sub-pixels 111 of different emitting colors arranged sequentially in a third direction Z, wherein the third direction Z is the light emission direction of the display panel, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other; each sub-pixel 111 includes a pixel driving circuit 120 and a light-emitting sub-unit 130 connected to the pixel driving circuit 120, wherein the pixel driving circuit 120 is located on one side of the light-emitting sub-unit 130 in the third direction Z; the pixel driving circuit 120 is transparent.

[0047] Specifically, Figures 1-3 The middle arrow indicates the light emission direction of the display panel. A connecting layer is included between two adjacent display modules 100 to connect them. The connecting layer can be an adhesive layer, and the material of the adhesive layer can be nano-adhesive. The connecting layer can also be a connecting component, which can be a clip or a Velcro fastener.

[0048] By detachably connecting two adjacent display modules 100, the display area of ​​the display panel can be flexibly controlled by controlling the number of display modules 100. When the display area of ​​the display panel is fixed, the resolution of the display panel can be flexibly controlled by controlling the number of display modules 100. For example, when the display area of ​​the display panel is fixed, the number of display modules 100 in the display panel can be controlled by controlling the thickness of the connecting layer in the first direction X, thereby controlling the resolution of the display panel.

[0049] The connection between two adjacent pixel units 110 in the display module 100 can be detachable. By detachably connecting two adjacent pixel units 110, the display size of the display panel in the second direction Y can be controlled. Alternatively, multiple display modules 100 can be detachably connected in the second direction Y via an adhesive layer, thereby controlling the display size of the display panel in the second direction Y.

[0050] The emission color of sub-pixels 111 can be red, blue, or green. Pixel unit 110 may include red-emitting sub-pixels, blue-emitting sub-pixels, and green-emitting sub-pixels. Pixel unit 110 includes sub-pixels 111 with multiple different emission colors, allowing one pixel unit 110 to emit multiple different colors of light. Therefore, within a unit display area, when the number of pixel units 110 provided in this embodiment changes, the resolution of the display panel will change.

[0051] At least three sub-pixels 111 of different emission colors are arranged sequentially in the third direction Z. This arrangement can be achieved by connecting the centers of the three sub-pixels 111 of different emission colors parallel to the third direction Z, meaning the vertical projections of the sub-pixels 111 of different emission colors in the third direction Z overlap. Therefore, the area occupied by a pixel unit 110 composed of sub-pixels arranged sequentially in the third direction Z provided in this embodiment can be the same as the area occupied by a pixel unit emitting only one color of light in the prior art.

[0052] The pixel driving circuit 120 can be a 7T1C, which can control the brightness and duration of the light emission of the light-emitting sub-unit 130. The pixel driving circuit 120 is transparent, allowing light emitted from each light-emitting sub-unit 130 in the pixel unit 110 to pass through the pixel driving circuit 120 and exit along the third direction Z. By placing the pixel driving circuit 120 on one side of the light-emitting sub-unit 130 in the third direction Z, the size of the pixel unit 110 in the first direction X can be reduced, thereby reducing the spacing between two adjacent pixels (pixel unit 110 includes pixels, and pixels include at least three sub-pixels 111 of different emitting colors) in the first direction X, thus improving the resolution of the display panel.

[0053] It should be noted that the reference Figure 3 The pixel driving circuit 120 provided in this embodiment includes a thin-film transistor 121. The thin-film transistor 121 includes a gate layer 122, an active layer 123, a source layer 124, and a drain layer 125. The source layer 124 or the drain layer 125 is connected to the light-emitting sub-unit 130. In the third direction, the source layer 124 and the drain layer 125 are located on the same side of the gate layer 122.

[0054] This embodiment provides a display panel comprising multiple display modules arranged along a first direction. Adjacent display modules are detachably connected, allowing for flexible adjustment of the number of display modules and thus the display area. The number of display modules can be controlled by adjusting the size of the connection between adjacent display modules, thereby controlling the display panel's resolution. Each display module includes multiple pixel units arranged along a second direction. Each pixel unit includes multiple sub-pixels of different emitting colors, arranged sequentially along a third direction, which is the light-emitting direction of the display panel. A single pixel unit can emit different colors of light. Within a unit display area, the resolution of the display panel changes when the number of pixel units provided in this embodiment changes. Each sub-pixel includes a pixel driving circuit and a light-emitting sub-unit. For a single pixel unit, in the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit, thereby reducing the size of the pixel unit in the first direction and thus reducing the spacing between adjacent pixels in the first direction, improving the display panel's resolution. In summary, the display panel provided in this embodiment can improve the display panel's resolution and flexibly adjust both the resolution and display area.

[0055] Optional, Figure 4 This is a schematic diagram of another pixel unit structure provided according to an embodiment of the present invention, with reference to... Figure 4 In the pixel unit 110, the light-emitting sub-unit 130 includes an anode layer 131, an organic material layer 132 and a cathode layer 133 stacked sequentially in the first direction X; a pixel definition layer 140 is included between the light-emitting sub-units 130 of two adjacent sub-pixels 111; the pixel driving circuit 120 is located in the pixel definition layer 140; the pixel definition layer 140 is transparent.

[0056] Specifically, the pixel definition layer 140 also has insulating properties. The pixel definition layer 140 prevents the anode layers 131 in two adjacent sub-pixels 111 from conducting. The pixel definition layer 140 also serves to space the organic material layers 132 in two adjacent sub-pixels 111, preventing the interaction of charge carriers within the organic material layers 132 in two adjacent sub-pixels 111. The material of the pixel definition layer 140 may include resin. When the pixel definition layer 140 is transparent, light from all sub-pixels 111 can be emitted in the third direction Z. Both the anode layer 131 and the cathode layer 133 are conductive. The anode layer 131 may be made of ITO and / or IZO, or it may include a stacked structure of ITO film, Ag film, and ITO film. The cathode layer 133 may be made of at least one of magnesium, aluminum, and silver. In the pixel unit 110, the cathode layers 133 in each sub-pixel 111 can be interconnected.

[0057] Optional, Figure 5 This is a schematic diagram of another pixel unit structure provided according to an embodiment of the present invention, with reference to... Figure 5 The anode layer 131 includes a first light guide layer 1311; the cathode layer 133 includes a second light guide layer 1331; the first light guide layer 1311, the organic material layer 132, and the second light guide layer 1331 are arranged sequentially along a first direction X; the first light guide layer 1311 and the second light guide layer 1331 are both used to make the light in the organic material layer 132 emitted along a third direction Z.

[0058] Specifically, the first light guide layer 1311 and the second light guide layer 1331 may be transparent. All films in the anode layer 131, excluding the first light guide layer 1311, are collectively referred to as the anode, and all films in the cathode layer 133, excluding the second light guide layer 1331, are collectively referred to as the cathode. The anode material may include ITO and / or IZO, or the anode may be a laminated structure comprising ITO films, Ag films, and ITO films. The cathode material may include at least one of magnesium, aluminum, and silver. The first light guide layer 1311 material may include at least one of the materials in the anode. The second light guide layer 1331 material may include at least one of the materials in the cathode.

[0059] In the first direction X, the first light guide layer 1311 is adjacent to the side of the organic material layer 132 near the anode, and the side of the organic material layer 132 near the cathode is adjacent to the second light guide layer 1331. Both the first light guide layer 1311 and the second light guide layer 1331 can optimize the light transmission direction in the organic material layer 132, allowing most of the light in the organic material layer 132 to be emitted in the third direction Z, which is beneficial to improving the light emission efficiency of the display panel and improving the display effect of the display panel.

[0060] It should be noted that, Figure 5 The first light guide layer 1311 and the second light guide layer 1331 are shown as serrated for illustrative purposes only and are not intended to limit the invention. In practical applications, the first light guide layer 1311 and the second light guide layer 1331 can also be set to other shapes that are conducive to the transmission of light along the third direction Z.

[0061] Optional, Figure 6 This is a schematic diagram of another pixel unit structure provided according to an embodiment of the present invention, with reference to... Figure 6 The anode layer 131 includes a third light guide layer 1312; the cathode layer 133 includes a fourth light guide layer 1332; the third light guide layer 1312, the organic material layer 132 and the fourth light guide layer 1332 are arranged sequentially in the third direction Z; the third light guide layer 1312 and the fourth light guide layer 1332 are both located in the pixel definition layer 140; the third light guide layer 1312 and the fourth light guide layer 1332 are both used to make the light in the organic material layer 132 emitted in the third direction Z.

[0062] Specifically, the third light guide layer 1312 and the fourth light guide layer 1332 may be transparent. All film layers in the anode layer 131, excluding the first light guide layer 1311 and the third light guide layer 1312, are collectively referred to as the anode. All film layers in the cathode layer 133, excluding the second light guide layer 1331 and the fourth light guide layer 1332, are collectively referred to as the cathode. The anode material may include ITO and / or IZO, or the anode may be a laminated structure comprising ITO film layers, Ag film layers, and ITO film layers. The cathode material may include at least one of magnesium, aluminum, and silver. The third light guide layer 1312 material may include at least one of the materials in the anode. The fourth light guide layer 1332 material may include at least one of the materials in the cathode.

[0063] Both the third light guide layer 1312 and the fourth light guide layer 1332 can optimize the light transmission direction in the organic material layer 132, so that most of the light in the organic material layer 132 can be emitted along the third direction Z, which is beneficial to improving the light emission efficiency of the display panel and improving the display effect of the display panel.

[0064] The organic material layer 132 includes a hole sublayer, a light-emitting sublayer, and an electron sublayer. The hole sublayer is used to transport holes from the anode layer 131 to the light-emitting sublayer, and the electron sublayer is used to transport electrons from the cathode layer 133 to the light-emitting sublayer. The holes and electrons transported to the light-emitting sublayer are used to excite the light-emitting molecules in the light-emitting sublayer to emit light. Placing the third light guide layer 1312 in the pixel definition layer 140 prevents the third light guide layer 1312 from contacting the electron sublayer, thereby preventing holes in the third light guide layer 1312 from being transported to the electron sublayer. This prevents electrons in the electron sublayer from being transported to the light-emitting sublayer, thus affecting the luminous efficiency of the light-emitting sublayer. Similarly, placing the fourth light guide layer 1332 in the pixel definition layer 140 prevents the fourth light guide layer 1332 from contacting the hole sublayer, thereby preventing electrons in the fourth light guide layer 1332 from being transported to the hole sublayer. This prevents holes in the hole sublayer from being transported to the light-emitting sublayer, thus affecting the luminous efficiency of the light-emitting sublayer.

[0065] It should be noted that, Figure 6 The serrated shape of the third light guide layer 1312 and the fourth light guide layer 1332 is merely an example and is not intended to limit the invention. In practical applications, the third light guide layer 1312 and the fourth light guide layer 1332 can also be configured with other shapes that are conducive to the transmission of light along the third direction Z.

[0066] Optionally, the display module also includes a control unit; the control unit is used to control the light emission state of each sub-pixel.

[0067] Specifically, Figure 7 This is a schematic diagram of the structure of another display module provided according to an embodiment of the present invention, with reference to... Figure 7The display module provided in this embodiment also includes a substrate 160 and multiple pins 170. Each sub-pixel is located on the same side of the substrate 160. In the display module 110, data lines, light emission control lines, power lines, scan lines and clock signal lines are respectively connected to the first end of different pins 170, and the second end of each pin 170 is connected to the control unit.

[0068] The control unit is connected to each sub-pixel in the display module 100. The working state of the sub-pixel can be divided into three stages: initialization stage (or reset stage), data writing stage, and light emission stage. The control unit controls the sub-pixel to not emit light during the initialization stage and the data writing stage, and controls the sub-pixel to emit light during the light emission stage. The control unit can send data signals and light emission control signals to the pixel driving circuit in the sub-pixel. The data signals and light emission control signals can control the light emission brightness of the sub-pixel and the light emission duration of the sub-pixel in one frame of the display image. Each display module 100 includes a control unit, so the display state of each display module 100 can be independent of each other.

[0069] Optionally, the display panel provided in this embodiment further includes a control module; the control module is connected to the control unit in each display module; the control module is used to control the working state of each control unit.

[0070] Specifically, the control module can control the display state of each display module by controlling the operating state of each control unit. The control module can send the same control signal to each control unit, thereby ensuring that each control unit has the same operating state, and thus enabling each display module to display the image simultaneously. The control module can also send different control signals to different control units, allowing the display panel to achieve zoned display. For example, Figure 8 This is a schematic diagram of the structure of another display panel provided according to an embodiment of the present invention. Figure 8 This is a top view of the display panel, see reference. Figure 8 The display panel includes multiple display modules 100, and the control module can control a portion of area 101. Figure 8 The display module 100 displays the image in the area enclosed by the thick dashed line, and the display module 100 in the remaining area does not display the image. The remaining area is the area in the display area of ​​the display panel excluding part of area 101. Figure 9 This is a schematic diagram of the structure of another display panel provided according to an embodiment of the present invention. Figure 9 This is also a top view of the display panel, see reference. Figure 9The display panel includes a first display area 102, a second display area 103, and a third display area 104. Each of the first display area 102, the second display area 103, and the third display area 104 includes at least two display modules 100. The control module can control the first display area 102, the second display area 103, and the third display area 104 to display different images. That is, the first display area 102, the second display area 103, and the third display area 104 are independent of each other and do not affect each other. It can be seen that the display panel provided in this embodiment can realize partitioned display.

[0071] Optionally, at least three sub-pixels with different light-emitting colors include a red-emitting sub-pixel, a blue-emitting sub-pixel, and a green-emitting sub-pixel; in the pixel unit, the blue-emitting sub-pixel is closest to the light-emitting surface of the display panel.

[0072] Specifically, since red light has stronger penetrating power than green light, and green light has stronger penetrating power than blue light, placing the blue-emitting sub-pixels closest to the light-emitting surface of the display panel can prevent red and green light from overshadowing blue light and weakening the display effect. Furthermore, blue light photo-induces the emissive layer in red-emitting sub-pixels to emit red light, and blue light also photo-induces the emissive layer in green-emitting sub-pixels to emit green light. Therefore, placing the blue-emitting sub-pixels closest to the light-emitting surface of the display panel can also prevent blue light from photo-inducing red-emitting sub-pixels to emit red light and green-emitting sub-pixels to emit green light when only blue-emitting sub-pixels need to emit light.

[0073] Optionally, in a pixel unit, at least three sub-pixels with different emission colors are connected to different data lines, and at least three sub-pixels with different emission colors are connected to the same emission control line.

[0074] Specifically, connecting different sub-pixels to different data lines allows different sub-pixels to receive different data signals. Connecting different sub-pixels to the same light-emitting control line allows different sub-pixels to emit light for the same duration in a single frame.

[0075] This embodiment provides a display device, which includes the display panel provided in any embodiment of the present invention.

[0076] Specifically, the display device provided in this embodiment can be a computer, mobile phone, tablet, smartwatch, or other device with display function.

[0077] Figure 10 This is a flowchart illustrating a method for manufacturing a display panel according to an embodiment of the present invention. (Refer to...) Figure 10 The manufacturing method provided in this embodiment includes the following steps:

[0078] S110, The motherboard for forming the display panel.

[0079] Specifically, Figure 11This is a schematic diagram of the structure of a motherboard for a display panel according to an embodiment of the present invention. Figure 12 It is along Figure 11 A schematic diagram of the structure obtained by dissection along anatomical lines A1A2, see reference. Figure 11 and Figure 12 The motherboard of the display panel includes multiple sub-pixels 111. In the row direction, red-emitting sub-pixels, green-emitting sub-pixels, and blue-emitting sub-pixels are arranged sequentially. In the column direction, sub-pixels 111 of the same emitting color are arranged sequentially. The row direction is parallel to the first direction X, and the column direction is parallel to the second direction Y. The motherboard of the display panel includes multiple data lines, multiple light-emitting control lines, multiple power lines, multiple scan lines, and multiple clock signal lines. The connection methods between the data lines, light-emitting control lines, power lines, scan lines, and clock signal lines and the sub-pixels are the same as those in existing display panels and will not be described further here.

[0080] S120. Forming a plurality of display modules arranged along a first direction and detachably connected; wherein, the display module includes a plurality of pixel units arranged along a second direction; the pixel unit includes at least three sub-pixels of different emitting colors arranged sequentially in a third direction, wherein the third direction is the light emission direction of the display panel, and the first direction, the second direction and the third direction are perpendicular to each other; the sub-pixel includes a pixel driving circuit and a light-emitting sub-unit, the pixel driving circuit is connected to the light-emitting sub-unit, and in the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit; the pixel driving circuit is transparent.

[0081] Specifically, multiple display modules are formed along the first direction X and can be detachably connected, based on the motherboard of the display panel. (Continue to refer to...) Figure 11 and Figure 12 Multiple consecutive sub-pixels 111 of different emitting colors are configured as a display module. Each display module includes at least one set of three sub-pixels 111 (R / G / B). The motherboard of the display panel is cut along the cutting line 150 between adjacent display modules to obtain multiple display modules. Rotating the cut display modules 90° clockwise yields... Figure 2 The display module 100 shown will eventually display multiple such... Figure 2 The display modules 100 shown are arranged along the first direction X and can be detachably connected to form a display module as shown in the figure. Figure 1 The aforementioned display panel.

[0082] It should be noted that in the formation Figure 1 Behind the display panel shown, in the first direction X, an opaque film layer needs to be attached to both sides of the display panel to prevent light from the display panel from escaping along the first direction X.

[0083] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0084] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, include: Multiple display modules arranged along a first direction and detachably connected; The display module includes a plurality of pixel units arranged along the second direction; The pixel unit includes at least three sub-pixels of different emitting colors arranged sequentially in a third direction, wherein the third direction is the light emission direction of the display panel, and the first direction, the second direction and the third direction are perpendicular to each other; The sub-pixel includes a pixel driving circuit and a light-emitting sub-unit connected to the pixel driving circuit. In the third direction, the pixel driving circuit is located on one side of the light-emitting sub-unit. The pixel driving circuit is transparent; In the pixel unit, the light-emitting sub-unit includes an anode layer, an organic material layer, and a cathode layer stacked sequentially in the first direction; a pixel definition layer is included between the light-emitting sub-units of two adjacent sub-pixels; the pixel driving circuit is located within the pixel definition layer; the pixel definition layer is transparent.

2. The display panel according to claim 1, characterized in that, The anode layer includes a first light guide layer; The cathode layer includes a second light guide layer; The first light guide layer, the organic material layer, and the second light guide layer are arranged sequentially along the first direction; Both the first light guide layer and the second light guide layer are used to allow light in the organic material layer to be emitted in the third direction.

3. The display panel according to claim 1 or 2, characterized in that, The anode layer includes a third light guide layer; The cathode layer includes a fourth light guide layer; The third light guide layer, the organic material layer, and the fourth light guide layer are arranged sequentially in the third direction; Both the third light guide layer and the fourth light guide layer are located in the pixel definition layer; Both the third and fourth light guide layers are used to allow light from the organic material layer to exit along the third direction.

4. The display panel according to claim 1, characterized in that, The display module also includes a control unit; The control unit is used to control the light emission state of each sub-pixel.

5. The display panel according to claim 4, characterized in that, It also includes a control module; The control module is connected to the control unit in each of the display modules; The control module is used to control the working state of each of the control units.

6. The display panel according to claim 1, characterized in that, The at least three sub-pixels with different emission colors include a red-emitting sub-pixel, a blue-emitting sub-pixel, and a green-emitting sub-pixel; In the pixel unit, the blue photoluminescent sub-pixel is closest to the light-emitting surface of the display panel.

7. The display panel according to claim 1, characterized in that, In the pixel unit, the at least three sub-pixels with different emission colors are connected to different data lines, and the at least three sub-pixels with different emission colors are connected to the same emission control line.

8. A display device, characterized in that, Includes the display panel as described in any one of claims 1-7.

9. A method for manufacturing a display panel, characterized in that, Includes the following steps: Multiple display modules are formed and detachably connected along a first direction; wherein, each display module includes multiple pixel units arranged along a second direction; each pixel unit includes at least three sub-pixels of different emitting colors arranged sequentially in a third direction, wherein the third direction is the light emission direction of the display panel, and the first direction, the second direction, and the third direction are perpendicular to each other; each sub-pixel includes a pixel driving circuit and a light-emitting sub-unit, the pixel driving circuit being connected to the light-emitting sub-unit, and in the third direction, the pixel driving circuit being located on one side of the light-emitting sub-unit; the pixel driving circuit is transparent; in each pixel unit, the light-emitting sub-unit includes an anode layer, an organic material layer, and a cathode layer sequentially stacked in the first direction; a pixel definition layer is included between the light-emitting sub-units of two adjacent sub-pixels; the pixel driving circuit is located within the pixel definition layer; the pixel definition layer is transparent.

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