CN116166138A - Display panel, manufacturing method thereof, and display device - Google Patents

Abstract

The present application discloses a display panel, a manufacturing method thereof, and a display device. The display panel includes a first substrate; a plurality of display modules are arranged on the first substrate, and the plurality of display modules are arranged in an array, each Each of the display modules includes an array substrate, a light-emitting device layer, and a touch layer stacked in a direction away from the first substrate; wherein, the touch layers of adjacent display modules are connected to each other. The display panel provided by this application can realize large-scale display. At the same time, each touch layer in the display panel is formed as an integrated structure arranged on the entire surface, which realizes synchronous driving of all touch layers, reduces the number of driving chips, and prevents Touch blind areas appear between adjacent display modules, so that the display panel can achieve a better touch effect, and compared with the external touch layer covering each display module, the touch layer in this application is thinner and more helpful. To achieve thinner and lighter display panels.

Description

Display panel, manufacturing method thereof, and display device

technical field

The present application belongs to the field of display technology, and in particular relates to a display panel, a manufacturing method thereof, and a display device.

Background technique

At present, in order to pursue visual experience, people have higher and higher requirements on display screens, and people also have higher and higher requirements on the area of display screens, so as to achieve better visual experience. However, the manufacturing process of large-size display screens is relatively difficult, and it is difficult to meet people's needs for large-size display screens.

Contents of the invention

Embodiments of the present application provide a display panel, a manufacturing method thereof, and a display device, which can realize large-size display and achieve better touch effects at the same time.

The embodiment of the first aspect of the embodiments of the present application provides a display panel, including:

first substrate;

A plurality of display modules are arranged on the first substrate, and the plurality of display modules are arranged in an array, and each display module includes an array substrate and a light-emitting device stacked in a direction away from the first substrate layer and touch layer;

Wherein, the touch layers of adjacent display modules are connected to each other.

According to the implementation manner of the first aspect of the present application, in each of the display modules, the touch layer includes a plurality of first electrodes arranged in an array and a plurality of second electrodes arranged in an array, adjacent to each other along the first direction. The first electrodes are connected through a first wiring, and the adjacent second electrodes along the second direction are connected through a second wiring;

Between the adjacent display modules along the first direction, the first electrodes adjacent along the first direction are electrically connected through a first electrical connection part; Between the display modules, the second electrodes adjacent along the second direction are electrically connected through the second electrical connection part.

In the above-mentioned embodiment, between adjacent display modules along the first direction, the first electrodes adjacent along the first direction are electrically connected through the first electrical connection part, so that the display modules adjacent along the first direction in the display panel are realized All the electrical connections of the first electrodes; between the adjacent display modules along the second direction, the second electrodes adjacent along the second direction are electrically connected through the second electrical connection part, thereby realizing the phase connection along the second direction in the display panel. All the electrical connections of the adjacent second electrodes are realized, so as to realize the electrical connection of all the touch layers in the display panel, which facilitates synchronous driving and achieves a better touch effect.

According to any one of the above-mentioned implementations of the first aspect of the present application, the first electrical connection part and the second electrical connection part are located on the side of the touch layer away from the first substrate, and the first electrical connection The material of the portion and the second electrical connection portion includes conductive tape.

In the above embodiment, the materials of the first electrical connection part and the second electrical connection part both include conductive tape, so that the preparation can be facilitated, and the subsequent operation of attaching the conductive tape is performed after each display module and the first substrate are fixed. Yes, the process is simple.

According to any one of the foregoing implementation manners of the first aspect of the present application, the first electrical connection portion extends along the second direction, and includes first conductive portions and first non-conductive portions arranged alternately along the second direction, each The first conductive part connects two adjacent first electrodes;

The second electrical connection part extends along the first direction, and includes second conductive parts and second non-conductive parts arranged alternately along the first direction, each of the second conductive parts connects two adjacent the second electrode.

In the above embodiment, by providing the first conductive part and the first non-conductive part in the first electrical connection part, the short circuit of the first electrodes adjacently arranged along the second direction can be prevented, and at the same time, only one first electrode needs to be pasted. The electrical connection part can realize the corresponding electrical connection of the adjacent first electrodes between two adjacent rows of display modules along the first direction, so as to facilitate the reduction of process.

By arranging the second conductive part and the second non-conductive part in the second electrical connection part, the short circuit of the second electrodes adjacently arranged along the first direction can be prevented, and at the same time, only one second electrical connection part needs to be pasted. Corresponding electrical connections between adjacent second electrodes between two adjacent rows of display modules along the second direction are realized, thereby facilitating process reduction.

According to any one of the foregoing implementation manners of the first aspect of the present application, the colors of the first electrical connection part and the second electrical connection part are both black.

In the above embodiment, since the first electrical connection part and the second electrical connection part will cover the splicing seam between two adjacent display modules when connecting two adjacent display modules, and the first electrical connection part and the second electrical connection part The color of the second electrical connection part is black. At this time, the splicing seam will be covered to avoid affecting the display effect due to light transmission at the splicing seam. After the seam is blocked, ambient light can be prevented from passing through the splicing seam. Thus, the display effect and display quality are improved.

According to any one of the above-mentioned implementations of the first aspect of the present application, the width of the first electrical connection portion along the first direction is less than or equal to the distance between the display areas of two adjacent display modules arranged along the first direction ;

The width of the second electrical connection portion along the second direction is less than or equal to the distance between the display areas of two adjacent display modules arranged along the second direction.

In the above embodiments, it is possible to prevent the first electrical connection part and the second electrical connection part from blocking the display area of the display module, so as to ensure the display effect of the display panel.

According to any one of the above-mentioned implementations of the first aspect of the present application, it further includes a driver chip, a plurality of first touch wires and a plurality of second touch wires, arranged along the first direction and along the first direction The adjacent first electrodes are connected to the same first touch wire, and the second electrodes arranged along the second direction and adjacent to the second electrode are connected to the same second touch wire. Control wiring, the first touch wiring and the second touch wiring extend from the touch layer to between the array substrate and the first substrate, each of the first touch The wires and each of the second touch wires are connected to the driving chip.

In the above embodiment, by electrically connecting the touch layers of the display modules, each first electrode adjacent along the first direction is connected to the same first touch trace, and each second electrode adjacent along the second direction is connected to the same wire. A second touch trace, so that only the same number of first touch traces as the first electrodes arranged in the display panel along the second direction need to be arranged in the edge area of the display panel, and the same number of first touch traces as the first electrodes arranged in the display panel along the first direction The same number of second touch wires arranged as the second electrodes can realize synchronous driving of each touch layer in the display panel, and save the number of driving chips when each touch layer is driven separately, thereby saving cost.

According to any one of the foregoing implementation manners of the first aspect of the present application, the display module is an organic light emitting diode display module or a miniaturized light emitting diode display module.

In the above-mentioned embodiment, regardless of whether the display module is an organic light-emitting diode display module or a miniaturized light-emitting diode display module, the touch layers of each display module can be connected to each other and synchronously driven to obtain a better display on the basis of large-screen display. Touch effect, while saving cost. The embodiment of the second aspect of the present application also provides a method for manufacturing a display panel, including:

A plurality of display modules and a first substrate are provided, and some of the display modules include touch wiring, and the touch wiring includes first touch wiring and/or second touch wiring, and each includes The display module of the touch control line is connected to one of the flexible circuit boards;

Arranging each of the display modules in an array on the first substrate, and fixing the side of each of the display modules away from the light-emitting surface to the first substrate, wherein the touch control wires include the The display module is located on the edge of the display panel;

A first electrical connection part is formed between the display modules adjacently arranged along the first direction, and the first electrical connection part is used to connect the first electrodes adjacent along the first direction; A second electrical connection part is formed between the display modules adjacently arranged along the second direction, and the second connection part is used to connect the second electrodes adjacent along the second direction;

Each of the flexible circuit boards is electrically connected to a driver chip.

In the preparation method provided by the present application, each display module is spliced on the first substrate, and the touch layers in each display module are connected to each other, so that the synchronous driving of each touch layer is realized, and the number of driving chips is saved. The touch effect of the display panel is improved; and the electrical connection of the touch layer of the display module is realized through the first electrical connection part and the second electrical connection part, which has little influence on the thickness of the display panel. Each first electrical connection part connects adjacent first electrodes between two adjacent rows of display modules, each second electrical connection part connects adjacent second electrodes between adjacent two rows of display modules, and the first The electrical connection part extends along the second direction, including first conductive parts and first non-conductive parts arranged alternately along the second direction, and the corresponding electrical connection between multiple first electrodes is realized through one first electrical connection part; the second The electrical connection part extends along the first direction, including second conductive parts and second non-conductive parts arranged alternately along the first direction, and the corresponding electrical connection between multiple second electrodes is realized through one second electrical connection part, which saves Preparation Process.

The embodiment of the third aspect of the present application also provides a display device, including any display panel provided in the first aspect of the present application or a display panel prepared by the method for preparing a display panel provided in the second aspect of the present application.

The display device realizes large-screen display, better display effect, wider field of vision, good touch effect and low cost.

In the display panel provided by the present application, a plurality of display modules are spliced on the first substrate to realize a large-scale display. Each display module includes an array substrate arranged on the first substrate, and sequentially formed on the array substrate The light-emitting device layer and the touch layer of the adjacent display module are connected to each other, so that each touch layer in the display panel is formed as an integrated structure arranged on the entire surface, which is separated from the touch layer in each display module. Compared with the driver, it realizes the synchronous driving of all touch layers, reduces the number of driver chips, and enables touch control at various positions in the display panel to prevent touch blind areas between adjacent display modules, making the display panel A better touch effect is achieved, and compared with the plug-in touch layer covering each display module, the touch layer in the present application is thinner, which is more conducive to realizing thinner and lighter display panels.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is a schematic cross-sectional view of a display panel provided by an embodiment of the present application;

Fig. 2 is a schematic top view structural diagram of a display panel provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of an enlarged view of part A in Fig. 2;

FIG. 4 is a schematic bottom view of a display panel provided by an embodiment of the present application;

5 is a schematic structural diagram of a first electrical connection part in a display panel provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a second electrical connection part in a display panel provided by an embodiment of the present application;

FIG. 7 is a flow chart of a method for manufacturing a display panel provided by an embodiment of the present application.

In the attached picture:

1-first substrate 2-display module; 21-array substrate; 22-light emitting device layer; 23-touch layer; 231-first electrode; 232-second electrode; 233-first wiring; 234-th Two traces; 3-the first electrical connection part; 31-the first conductive part; 32-the first non-conductive part; 4-the second electrical connection part; 41-the second conductive part; 42-the second non-conductive part; 5-first touch wiring; 6-second touch wiring; 7-driver chip; 8-flexible circuit board; 9-glue; 10-first stitching seam; 11-second stitching seam.

Detailed ways

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device that includes the element.

The inventors have found through research that the reason for the difficulty in the preparation process of large-scale display screens is that in the miniaturized light-emitting diode (micro-LED) display screen, the mass transfer technology of miniaturized light-emitting diodes (micro-LEDs) is difficult to meet the requirements of large-scale display screens. Huge transfer for size displays. Based on the research on the above problems, the inventor provides a display panel and its manufacturing method, and a display device, which realize large-size display by splicing small-size display screens.

In order to better understand the present application, a display panel, a manufacturing method thereof, and a display device according to an embodiment of the present application will be described in detail below with reference to FIG. 1 to FIG. 7 .

Please refer to FIG. 1 and FIG. 2, the embodiment of the present application provides a display panel, including a first substrate 1 and a plurality of display modules 2 formed on the first substrate 1, and a plurality of display modules 2 are arranged in an array, Each display module 2 includes an array substrate 21 , a light emitting device layer 22 and a touch layer 23 stacked in a direction away from the first substrate 1 ; wherein, the touch layers 23 of adjacent display modules 2 are connected to each other.

In the display panel provided by the present application, a plurality of display modules 2 are spliced on the first substrate 1 to realize a large-scale display. Each display module 2 includes an array substrate 21 disposed on the first substrate 1, and sequentially The light-emitting device layer 22 and the touch layer 23 formed on the array substrate 21, and the touch layers 23 of adjacent display modules 2 are connected to each other, so that each touch layer 23 in the display panel is formed into an integral structure arranged on the entire surface Compared with the separate driving of the touch layer 23 in each display module 2, synchronous driving of all touch layers 23 is realized, the number of driving chips 7 is reduced, and at the same time, touch control can be realized at various positions in the display panel. Prevent touch blind areas between adjacent display modules 2, so that the display panel can achieve a better touch effect, and compared with the external touch layer covering each display module 2, the touch layer 23 in this application is thinner , which is more conducive to realizing the thinning and lightening of the display panel.

In the above embodiments, the first substrate 1 can be made of such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET) , polyethylene naphthalate (PEN), polyarylate (PAR) or glass fiber reinforced plastic (FRP) and other polymer materials. Can be transparent, translucent, or opaque. The first substrate 1 can also be a flexible substrate formed of a thinner polymer, such as polyimide. A buffer layer may also be included between the first substrate 1 and the display module 2, and the buffer layer may include a multi-layer inorganic layer and organic layer stack structure to provide buffering and reduce the probability of damage to the first substrate 1 and the display module 2, and A flat surface is provided on the upper surface of the first substrate 1 to facilitate the fixing of each display module 2 to the first substrate 1 .

In a feasible implementation manner, the display module 2 is an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display module, and the array substrate 21 includes a second substrate and a pixel circuit layer formed on the second substrate; The device layer 22 includes light-emitting units of at least three colors, specifically, may include red light-emitting units, green light-emitting units and blue light-emitting units, and may also include white light-emitting units for enhancing the brightness of the display module 2 .

In another feasible implementation manner, the display module 2 is a miniaturized light-emitting diode (micro-LED) display module, and the array substrate 21 includes a second substrate and a pixel circuit layer formed on the second substrate; the light-emitting device layer 22 includes miniaturized light emitting diodes of at least three colors formed on the array substrate 21 , specifically, red miniaturized light emitting diodes 221 , green miniaturized light emitting diodes 222 and blue miniaturized light emitting diodes 223 .

In a feasible implementation manner, as shown in FIG. 3 , in each display module 2, the touch layer 23 includes a plurality of first electrodes 231 arranged in an array and a plurality of second electrodes 232 arranged in an array, along the The first electrodes 231 adjacent to each other in the first direction x are connected through the first wiring 233 , and the second electrodes 232 adjacent to each other along the second direction y are connected through the second wiring 234 .

Between adjacent display modules 2 along the first direction x, the first electrodes 231 adjacent along the first direction x are electrically connected through the first electrical connection part 3; between adjacent display modules 2 along the second direction y, The adjacent second electrodes 232 along the second direction y are electrically connected through the second electrical connection part 4 .

Since the display modules 2 disposed on the first substrate 1 are spliced with each other, a splicing seam is formed between adjacent display modules 2 . Each display module 2 on the first substrate 1 is arranged in an array, including a plurality of display modules 2 arranged along a first direction x and a plurality of display modules 2 arranged along a second direction y, the first direction x and the second direction y The two directions y are perpendicular to each other. Thus, the seams include a first seam 10 parallel to the first direction x and a second seam 11 parallel to the second direction y.

Each display module 2 includes a plurality of first electrodes 231 arranged in an array and a plurality of second electrodes 232 arranged in an array, and a first wiring is passed between adjacent first electrodes 231 along the first direction x 233 are connected, and the adjacent first electrodes 231 along the second direction y are not connected. The adjacent second electrodes 232 along the second direction y are connected through the second wire 234 , and the second electrodes 232 adjacent along the first direction x are not connected.

The touch layer 23 between the multiple display modules 2 disposed on the first substrate 1 is connected to form an entire surface, specifically, between adjacent display modules 2 along the first direction x, adjacent along the first direction x The first electrodes 231 are electrically connected through the first electrical connection part 3, that is, the two first electrodes 231 arranged along the first direction x located on both sides of each second splicing seam 11 along the first direction x are connected through the first The electrical connection part 3 is electrically connected, so as to realize the electrical connection of the respective first electrodes 231 arranged along the first direction x and adjacent to each other along the first direction x in the display panel. Between the adjacent display modules 2 along the second direction y, the second electrodes 232 adjacent along the second direction y are electrically connected through the second electrical connection part 4 , that is, they are respectively located at each first splicing seam 10 along the second The two second electrodes 232 arranged along the second direction y on both sides of the direction y are electrically connected through the second electrical connection part 4, so that each of the second electrodes 232 arranged along the second direction y and adjacent to each other along the second direction y in the display panel is electrically connected. The two electrodes 232 are electrically connected. The touch layer 23 in each display module 2 is spliced with each other to form a complete layer covering the display area of the display panel, so that the display panel includes a plurality of first electrodes 231 arranged in an array and a plurality of electrodes 231 arranged in an array. Each second electrode 232 is electrically connected between adjacent first electrodes 231 along the first direction x, and is electrically connected between adjacent second electrodes 232 along the second direction y, so as to facilitate synchronous driving of each touch layer 23, The number of driving chips 7 is reduced, and at the same time, each position in the display panel can be touched, preventing touch blind areas between adjacent display modules 2, and enabling the display panel to achieve a better touch effect.

In a feasible implementation manner, as shown in FIG. 4 , the display panel further includes a driver chip 7 , multiple first touch wires 5 and multiple second touch wires 6 arranged along the first direction x And the first electrodes 231 adjacent along the first direction x are connected to the same first touch wire 5, and the second electrodes 232 arranged along the second direction y and adjacent to the second direction y are connected to the same second touch wire 5. The wiring 6, the first touch wiring 5 and the second touch wiring 6 extend from the touch layer 23 to between the array substrate 21 and the first substrate 1, each first touch wiring 5 and each second touch wiring The touch wire 6 is connected to the driver chip 7 .

In the above embodiment, by electrically connecting the touch layers 23 of the display modules 2, the first electrodes 231 adjacent along the first direction x are connected to the same first touch trace 5, and the electrodes 231 adjacent along the second direction y Each second electrode 232 is connected to the same second touch wire 6, so that only the same number of first touch wires as the first electrodes 231 arranged along the second direction y in the display panel need to be arranged in the edge area of the display panel 5, and the same number of second touch wires 6 as the second electrodes 232 arranged along the first direction x in the display panel, the synchronous driving of each touch layer 23 in the display panel can be realized, and each touch layer can be saved. 23 the number of driving chips 7 when driving separately, saving cost.

Specifically, the first touch wiring 5 and the second touch wiring 6 can be arranged in the display module 2 located at the edge of the display panel, and each of the first touch wiring 5 in the display module 2 located at the edge And/or the second touch trace 6 is electrically connected to a flexible circuit board 8, and the flexible circuit board 8 in each display module 2 located at the edge is electrically connected to the same driver chip 7 through conduction, so that each display module can be realized Synchronous driving of the touch layer 23 in 2.

Specifically, the first touch wire 5 and the second touch wire 6 extend from the touch layer 23 to between the array substrate 21 and the first substrate 1, and then electrically connect with the flexible circuit board 8, thereby reducing the The frame of each display module 2 is reduced to help achieve a better splicing display effect.

In a feasible implementation manner, the first electrical connection part 3 and the second electrical connection part 4 are located on the side of the first substrate 1 away from the touch layer 23, and the first electrical connection part 3 and the second electrical connection part 4 The material includes conductive tape, which is convenient for preparation. After each display module 2 and the first substrate 1 are fixed, the subsequent operation of attaching the conductive tape is sufficient, and the process is simple.

In a feasible implementation manner, as shown in FIG. 5 , the first electrical connection part 3 extends along the second direction y, and includes first conductive parts 31 and first non-conductive parts 32 arranged alternately along the second direction y, Each first conductive part 31 connects two first electrodes 231 adjacent along the first direction x, that is, each first electrical connection part 3 extends along the extension direction of the second splicing seam 11, and each first electrical connection The part 3 is located between two adjacent rows of display modules 2 arranged along the first direction x, and connects the first electrodes 231 adjacent to each other along the first direction x between the two adjacent rows of display modules 2 arranged along the first direction x. One-to-one connection.

As shown in FIG. 6 , the second electrical connection portion 4 extends along the first direction x, and includes second conductive portions 41 and second non-conductive portions 42 arranged alternately along the first direction x, and each second conductive portion 41 is connected along the first direction x. The two second electrodes 232 adjacent in the second direction y, that is, each second electrical connection part 4 extends along the extension direction of the first splicing seam 10, and each second electrical connection part 4 is arranged along the second direction y. Between two adjacent rows of display modules 2 arranged along the second direction y, the second electrodes 232 adjacent to each other along the second direction y are connected in one-to-one correspondence.

In the above embodiment, by providing the first conductive part 31 and the first non-conductive part 32 in the first electrical connection part 3, the short circuit of the first electrodes 231 adjacently arranged along the second direction y can be prevented, and at the same time only Attaching one first electrical connection part 3 can realize the corresponding electrical connection of the adjacent first electrodes 231 between two adjacent rows of display panels along the first direction x, thereby facilitating the reduction of process.

By providing the second conductive part 41 and the second non-conductive part 42 in the second electrical connection part 4, the second electrodes 232 adjacently arranged along the first direction x can be prevented from short circuiting, and only one second electrode 232 needs to be pasted. The electrical connection part 4 can realize the corresponding electrical connection of the adjacent second electrodes 232 between two adjacent rows of display panels along the second direction y, so as to facilitate the process reduction.

In a feasible implementation manner, when each display module 2 is a non-transparent display module 2 , the colors of the first electrical connection part 3 and the second electrical connection part 4 are both black. Since the first electrical connection part 3 will cover the second splicing seam 11 between two adjacent display modules 2 when connecting two adjacent display modules 2, and the color of the first electrical connection part 3 is black, At this time, the second seam 11 will be blocked, so as not to affect the display effect due to the light transmission at the second seam 11, and the second seam 11 can be blocked to prevent ambient light from passing through the second seam 11. Through, thereby improving the display effect and display quality. Since the second electrical connection part 4 will cover the first splicing seam 10 between two adjacent display modules 2 when connecting two adjacent display modules 2, and the color of the second electrical connection part 4 is black, At this time, the first seam 10 will be blocked, so as not to affect the display effect due to the light transmission at the first seam 10, and the first seam 10 can be blocked to prevent ambient light from passing through the first seam 10. Through, thereby improving the display effect and display quality.

In the above embodiment, when the colors of the first electrical connection portion 3 and the second electrical connection portion 4 are both black, the width of the first electrical connection portion 3 along the first direction x is less than or equal to The distance between the display areas of the two display modules 2 arranged; the width of the second electrical connection part 4 along the second direction y is less than or equal to the display areas of the two display modules 2 adjacently arranged along the second direction y the distance between. Therefore, it is possible to prevent the display area of the display module 2 from being blocked, so as to ensure the display effect of the display panel.

In another feasible implementation manner, when each display module 2 is a transparent display module 2, the first electrical connection part 3 and the second electrical connection part 4 can be made of transparent conductive materials, such as transparent conductive tape, so as to realize Transparent display of the display panel.

The present application also provides a method for preparing a display panel, as shown in FIG. 7 , including:

S100, providing a plurality of display modules 2 and a first substrate 1, some of the display modules 2 include touch wiring, the touch wiring includes the first touch wiring 5 and/or the second touch wiring 6, and the Each display module 2 including touch traces is connected to a flexible circuit board 8 .

S200, arrange each display module 2 in an array on the first substrate 1, and fix the side of each display module 2 facing away from the light-emitting surface to the first substrate 1, wherein the display module 2 including the touch wiring is located on the display panel the edge of.

In step S200, the display module 2 and the first substrate 1 can be bonded and fixed by glue 9, and the glue 9 can be transparent optical glue or the like, so as to realize transparent display.

S300, forming a first electrical connection part 3 between the display modules 2 adjacently arranged along the first direction x, the first electrical connection part 3 is used to connect the first electrodes 231 adjacent along the first direction x; A second electrical connection portion 4 is formed between display modules 2 adjacently arranged along the second direction y, and the second connection portion is used to connect the second electrodes 232 adjacent along the second direction y.

S400, electrically connecting each flexible circuit board 8 with a driving chip 7 .

In the preparation method provided by the present application, each display module 2 is spliced on the first substrate 1, and the touch layers 23 in each display module 2 are connected to each other, so that the synchronous driving of each touch layer 23 is realized, which saves The number of driving chips 7 improves the touch effect of the display panel; and the electrical connection of the touch layer 23 of the display module 2 is realized through the first electrical connection part 3 and the second electrical connection part 4, which has little influence on the thickness of the display panel . Each first electrical connection part 3 is connected to adjacent first electrodes 231 between two adjacent rows of display modules 2, and each second electrical connection part 4 is connected to adjacent first electrodes 231 between two adjacent rows of display modules 2. Two electrodes 232, the first electrical connection part 3 extends along the second direction y, including first conductive parts 31 and first non-conductive parts 32 arranged alternately along the second direction y, and multiple The corresponding electrical connection between the first electrodes 231; the second electrical connection part 4 extends along the first direction x, and includes second conductive parts 41 and second non-conductive parts 42 arranged alternately along the first direction x, through a second The electrical connection part 4 realizes the corresponding electrical connection among the plurality of second electrodes 232 , which saves the manufacturing process.

According to the above embodiments of the present application, these embodiments do not exhaustively describe all details, nor limit the invention to only specific embodiments. Obviously many modifications and variations are possible in light of the above description. This description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and its modifications based on the present application. This application is to be limited only by the claims, along with their full scope and equivalents.

Claims (10)

1. A display panel, comprising:

a first substrate;

the display modules are arranged on the first substrate, are arrayed, and each display module comprises an array substrate, a light-emitting device layer and a touch layer which are stacked along the direction away from the first substrate;

the touch control layers of the adjacent display modules are connected with each other.

2. The display panel according to claim 1, wherein in each display module, the touch layer includes a plurality of first electrodes arranged in an array and a plurality of second electrodes arranged in an array, the first electrodes adjacent in a first direction are connected by a first wire, and the second electrodes adjacent in a second direction are connected by a second wire;

the first electrodes adjacent to each other along the first direction are electrically connected through a first electrical connection part between the display modules adjacent to each other along the first direction; and the second electrodes adjacent to each other along the second direction are electrically connected through a second electric connection part between the display modules adjacent to each other along the second direction.

3. The display panel of claim 2, wherein the first electrical connection portion and the second electrical connection portion are located on a side of the touch layer facing away from the first substrate, and the materials of the first electrical connection portion and the second electrical connection portion include conductive adhesive tapes.

4. A display panel according to claim 3, wherein the first electrical connection portions extend in the second direction and include first conductive portions and first non-conductive portions alternately arranged in the second direction, each of the first conductive portions connecting adjacent two of the first electrodes;

the second electrical connection parts extend along the first direction and comprise second conductive parts and second non-conductive parts which are alternately arranged along the first direction, and each second conductive part is connected with two adjacent second electrodes.

5. The display panel of claim 4, wherein the first and second electrical connections are each black in color.

6. The display panel according to claim 5, wherein a width of the first electrical connection portion in the first direction is less than or equal to a distance between display areas of two of the display modules adjacently arranged in the first direction;

the width of the second electric connection part along the second direction is smaller than or equal to the distance between the display areas of two display modules adjacently arranged along the second direction.

7. The display panel of claim 2, further comprising a driving chip, a plurality of first touch traces and a plurality of second touch traces, wherein the first electrodes arranged along the first direction and adjacent along the first direction are connected to the same first touch trace, the second electrodes arranged along the second direction and adjacent along the second direction are connected to the same second touch trace, the first touch trace and the second touch trace extend from the touch layer between the array substrate and the first substrate, and each of the first touch trace and each of the second touch trace is connected to the driving chip.

8. The display panel of claim 1, wherein the display module is an organic light emitting diode display module or a miniaturized light emitting diode display module.

9. A method for manufacturing a display panel, comprising:

providing a plurality of display modules and a first substrate, wherein part of the display modules comprise touch control wires, the touch control wires comprise first touch control wires and/or second touch control wires, and each display module comprising the touch control wires is connected with one flexible circuit board;

arranging the display modules on the first substrate in an array manner, and fixing one side, away from the light emitting surface, of each display module with the first substrate, wherein the display module comprising the touch wiring is positioned at the edge of the display panel;

forming first electrical connection parts between the display modules adjacently arranged along a first direction, the first electrical connection parts being used for connecting the first electrodes adjacently arranged along the first direction; forming a second electrical connection portion between the display modules adjacently arranged in a second direction, the second connection portion being for connecting the second electrodes adjacently arranged in the second direction;

and electrically connecting each flexible circuit board with one driving chip.

10. A display device comprising the display panel according to any one of claims 1 to 8 or the display panel produced by the method for producing a display panel according to claim 9.

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