Patent Description:
This application relates to the field of terminal technologies, and in particular, to a display panel and a manufacturing method thereof, and a terminal device.

With the continuous development of the information era, terminal devices such as mobile phones have become tools that are commonly used in people's lives and work. In addition, as users have increasingly high requirements for the terminal devices, terminal devices with narrow bezels are gradually favored by the users. Therefore, terminal devices with narrow bezels have gradually become a trend the industry pursue.

However, for a rigid display panel in a terminal device, a structure such as a driver chip needs to be arranged in a peripheral region thereof. As a result, a width of a bezel on a side where a binding region of the rigid display panel is located is relatively large.

<CIT> and <CIT> both disclose displays wherein the bezel area has a bending area with wirings for external connection.

Embodiments of this application provide a display panel and a manufacturing method thereof, and a terminal device, to reduce a width of a bezel on a side where a binding region of a rigid display panel is located.

According to a first aspect, an embodiment of the invention provides a display panel. The display panel includes: a display region and a bezel region surrounding the display region, where the bezel region includes a first peripheral region, a bendable region, and a binding region, the first peripheral region, the bendable region, and the binding region are sequentially arranged away from the display region, and the binding region is bent to a backlight side of the display panel through the bendable region; and a rigid substrate, a driving circuit layer arranged on the rigid substrate, and a first organic layer structure, a conductive layer, and a second organic layer structure that are sequentially arranged away from the rigid substrate, where the rigid substrate and the driving circuit layer are arranged bypassing the bendable region, the first organic layer structure, the conductive layer, and the second organic layer structure are distributed in at least the first peripheral region, the bendable region, and the binding region, and the first organic layer structure in the first peripheral region is located on a side of the driving circuit layer away from the rigid substrate. Furthermore, the second organic layer structure comprises at least one organic layer and the first organic layer structure comprises a plurality of organic layers, and the display panel further comprises a second inorganic layer structure arranged between two adjacent organic layers. The second inorganic layer structure comprises at least one inorganic layer, and is distributed in at least the first peripheral region, the bendable region and the binding region.

In this way, the rigid substrate and the driving circuit layer in the bendable region are peeled off, so that the display panel in the bendable region can be bent, and the display panel in the binding region can be bent to the backlight side of the display panel, thereby reducing a width of a bezel on a side where the binding region of the display panel is located. In addition, the first organic layer structure, a first inorganic layer structure, the conductive layer, and the second organic layer structure are arranged inside the first peripheral region, the bendable region, and the binding region, which can improve rigidity of the display panel in the bendable region, thereby better maintaining a bending profile in the bendable region. Furthermore, since the driving circuit layer is arranged bypassing the bendable region, a signal line in the driving circuit layer can be connected to a driver chip in the binding region through the conductive layer, to enable a signal outputted by the driver chip to be transmitted to the signal line.

The second organic layer structure includes at least one organic layer. The first organic layer structure includes a plurality of organic layers, and the display panel further includes a second inorganic layer structure arranged between two adjacent organic layers. The second inorganic layer structure includes at least one inorganic layer, and is distributed in at least the first peripheral region, the bendable region, and the binding region. In this way, by adding the second inorganic layer structure, the corrosion by the water and oxygen on the connection lead in the conductive layer can be further reduced, and the rigidity of the bendable region can be enhanced to a certain extent.

In an optional implementation, the display panel further includes a first inorganic layer structure arranged between the first organic layer structure and the conductive layer, where the first inorganic layer structure includes at least one inorganic layer and is distributed in at least the first peripheral region, the bendable region, and the binding region. In this way, the first inorganic layer structure can be arranged to block water and oxygen, thereby reducing erosion by the water and oxygen on a connection lead in the conductive layer.

In an optional implementation, the bezel region further includes a second peripheral region, a third peripheral region, and a fourth peripheral region, where the first peripheral region and the third peripheral region are located on two opposing sides of the display region, both the second peripheral region and the fourth peripheral region are located between the first peripheral region and the third peripheral region, and the second peripheral region and the fourth peripheral region are also located on the two opposing sides of the display region; and the first organic layer structure and the first inorganic layer structure are further distributed in the display region, the second peripheral region, the third peripheral region, and the fourth peripheral region. In this way, by arranging the first organic layer structure and the first inorganic layer structure in each region of the display panel, process complexity of patterning the first organic layer structure and the first inorganic layer structure can be lowered. In addition, the first organic layer structure and the first inorganic layer structure may also be simultaneously used as insulating film layers in the display region, to reduce a quantity of insulating film layers that need to be manufactured in the display region.

In an optional implementation, the conductive layer includes a plurality of connection leads, where one end of each of the connection leads is connected to the signal line in the driving circuit layer through a first via running through the first inorganic layer structure and the first organic layer structure, and an other end of each of the connection leads is further connected to the driver chip arranged in the binding region through a second via running through the second organic layer structure. In this way, the signal line in the driving circuit layer can be connected to the driver chip in the binding region through the connection lead, to enable the signal outputted by the driver chip to be transmitted to the signal line.

In an optional implementation, the display panel is a liquid crystal display (liquid crystal display, LCD) display panel, and the conductive layer and the second organic layer structure are arranged bypassing the display region. The signal line further extends to the first peripheral region, and the first via is located in the first peripheral region. In this way, the conductive layer and the second organic layer structure are not arranged in the display region, so that a quantity of film layers in the display region can be reduced, thereby improving a transmittance of the display panel in the display region.

In an optional implementation, the display panel is an organic light-emitting diode (organic light-emitting diode, OLED) display panel, and the conductive layer and the second organic layer structure are further distributed in the display region. The signal line further extends to the first peripheral region, and the first via is located in the first peripheral region. Alternatively, the first via is located in the display region. Since an OLED can emit light spontaneously, the conductive layer and the second organic layer structure in the display region do not affect the transmittance of the display panel. In addition, in a case that the conductive layer is further distributed in the display region, in the display region, the signal line in the driving circuit layer may also be connected to the driver chip in the binding region.

In an optional implementation, the bezel region further includes the second peripheral region, the third peripheral region, and the fourth peripheral region, where the first peripheral region and the third peripheral region are located on the two opposing sides of the display region, both the second peripheral region and the fourth peripheral region are located between the first peripheral region and the third peripheral region, and the second peripheral region and the fourth peripheral region are also located on the two opposing sides of the display region; and the conductive layer and the second organic layer structure are further distributed in the second peripheral region, the third peripheral region, and the fourth peripheral region. In this way, by arranging the conductive layer and the second organic layer structure in each region of the display panel, process complexity of patterning the conductive layer and the second organic layer structure can be lowered. In addition, by adding the second organic layer structure to the display region, flatness of the film layers in the display region can be improved.

In an optional implementation, the display panel further includes: an anode layer, where the anode layer is distributed in the display region and located on a side of the second organic layer structure away from the rigid substrate; and a pixel defining layer, where the pixel defining layer is distributed in at least the display region, the first peripheral region, the bendable region, and the binding region and located on a side of the second organic layer structure away from the first organic layer structure. In this way, by extending the pixel defining layer to the bendable region, the rigidity of the bendable region can be further improved.

In an optional implementation, the display panel further includes an adhesive layer, where the adhesive layer is located between the rigid substrate in the binding region and the rigid substrate in the display region. In this way, by adhering the rigid substrate in the binding region to the rigid substrate in the display region through the adhesive layer, a film layer structure in the binding region can be stably fixed on the backlight side of the display panel.

According to a second aspect, an embodiment of this application provides a manufacturing method for a display panel, including: providing a rigid substrate, where the rigid substrate is divided into a display region and a bezel region surrounding the display region, the bezel region includes a first peripheral region, a bendable region, and a binding region, the first peripheral region, the bendable region, and the binding region are sequentially arranged away from the display region; forming a driving circuit layer on the rigid substrate; sequentially forming a first organic layer structure, a conductive layer, and a second organic layer structure on the driving circuit layer, where the first organic layer structure, the conductive layer, and the second organic layer structure are distributed in at least the first peripheral region, the bendable region, and the binding region; peeling off the rigid substrate and the driving circuit layer in the bendable region; and bending the bendable region toward a backlight side of the display panel, so that the binding region is bent to the backlight side of the display panel.

In an optional implementation, the peeling off the rigid substrate and the driving circuit layer in the bendable region includes: performing laser irradiation on a side of the rigid substrate away from the driving circuit layer by using a light-shielding fixture, to peel off the rigid substrate and the driving circuit layer in the bendable region, where the light-shielding fixture includes a light-shielding region and a light-transmitting region, the light-transmitting region is arranged corresponding to the bendable region, and the light-shielding region is arranged corresponding to a region other than the bendable region.

In an optional implementation, before the bending the bendable region toward a backlight side of the display panel, the method further includes: arranging an adhesive layer on a surface at a side of the rigid substrate in the display region away from the first organic layer structure and/or on a surface at a side of the rigid substrate in the binding region away from the first organic layer structure; and after the bending the bendable region toward a backlight side of the display panel, the method further includes: adhering the rigid substrate in the binding region to the rigid substrate in the display region through the adhesive layer.

According to a third aspect, an embodiment of this application provides a terminal device, including a driver chip and the foregoing display panel, where the driver chip is located in a binding region of the display panel, and the driver chip is connected to a connection lead in the display panel through a second via running through a second organic layer structure in the display panel.

Effects of the various possible implementations of the second aspect and the third aspect are similar to effects of the first aspect and the possible designs of the first aspect, and details are not described herein again.

The examples shown in <FIG>, <FIG>, <FIG>, <FIG>, <FIG> and <FIG> are for illustrative purposes only.

For ease of describing the technical solutions in the embodiments of this application clearly, in the embodiments of this application, terms such as "first" and "second" are used to distinguish same or similar items with basically same functions and roles. For example, a first chip and a second chip are merely used to distinguish between different chips, and are not intended to limit a sequence thereof. A person skilled in the art may understand that the terms such as "first" and "second" do not define a quantity and an execution sequence, and the terms such as "first" and "second" do not indicate a definite difference.

It should be noted that in the embodiments of this application, the terms such as "exemplarily" or "for example" are used to represent giving an example, an illustration, or a description. Any embodiment or design solution described by using "exemplarily" or "for example" in this application should not be explained as being more preferred or having more advantages than another embodiment or design solution. Exactly, the terms such as "exemplarily" or "for example" as used herein are intended to present a related concept in a specific manner.

In the embodiments of this application, "at least one" refers to one or more, and "a plurality of" refers to two or more. "And/or" describes an association relationship between associated objects and represents that three relationships may exist. For example, A and/or B may represent that: only A exists, both A and B exist, and only B exists, where A and B may be singular or plural. The character "/" generally indicates an "or" relationship between the associated objects. "At least one of the following items" or a similar expression means any combination of these items, including a single item or any combination of a plurality of items. For example, at least one of a, b, or c may represent a, b c, "a and b", "a and c", "b and c", or "a, b, and c", where a, b, and c may be singular or plural.

In the related art, as shown in <FIG>, a flexible display module includes: a flexible display panel <NUM>, a first back film <NUM>, an adhesive layer <NUM>, a support pad <NUM>, a second back film <NUM>, a metal cover layer (metal cover layer, MCL) <NUM>, an encapsulation layer <NUM>, a touch layer <NUM>, a polarizer <NUM>, an optical adhesive layer <NUM>, and a cover plate <NUM>. In addition, the flexible display module is divided into a display region AA and a bezel region NA. The bezel region NA includes a peripheral region B <NUM>, a bendable region B2, and a binding region B3, and the peripheral region B1 refers to a region between the display region AA and a boundary of the encapsulation layer <NUM>. By using a flexible material as a substrate material of the flexible display panel <NUM>, the flexible display panel <NUM> in the bendable region B2 is enabled to be bent, and therefore the flexible display panel <NUM> in the binding region B3 can be bent to a backlight side of the flexible display panel <NUM> through the flexible display panel <NUM> in the bendable region B2, thereby reducing a width of a bezel on a side where the binding region B3 of the flexible display panel <NUM> is located. However, manufacturing costs of the flexible display panel <NUM> are usually greater than that of a rigid display panel. To reduce manufacturing costs of a terminal device, the rigid display panel may be used as a display panel of the terminal device.

As shown in <FIG>, the rigid display panel includes a rigid backplane <NUM>, and the rigid backplane <NUM> is divided into a display region AA and a bezel region NA. The bezel region NA includes a peripheral region and an edge region B4, and the peripheral region includes a wiring lapping region B11 and an encapsulation region B12. The edge region B4 refers to a region between the encapsulation region B12 and an edge of the rigid backplane <NUM>, and the edge region B4 includes a binding region used for binding a driver chip.

A structure such as a light-emitting device <NUM> is arranged on the rigid backplane <NUM> in the display region AA, a structure <NUM> such as lapping wiring is arranged on the rigid backplane <NUM> in the wiring lapping region B11, and an encapsulation structure <NUM> is arranged on the rigid backplane <NUM> in the encapsulation region B12. In addition, the rigid display panel further includes a cover plate <NUM>.

A substrate material in the rigid backplane <NUM> is a rigid material, and therefore the rigid backplane <NUM> cannot be bent. As a result, a width of a bezel on a side where the binding region of the rigid display panel is located is relatively large. Through testing, a width of the bezel region NA of the rigid display panel shown in <FIG> is generally greater than or equal to <NUM>, and a width of the edge region B4 is basically about <NUM>.

Based on the above, an embodiment of this application provides a display panel, where a rigid substrate and a driving circuit layer in a bendable region are peeled off, so that the display panel in the bendable region can be bent, and the display panel in a binding region can be bent to a backlight side of the display panel, thereby reducing a width of a bezel on a side where the binding region of the display panel is located. In addition, a first organic layer structure, a first inorganic layer structure, a conductive layer, and a second organic layer structure are arranged inside a first peripheral region, the bendable region, and the binding region, which can improve rigidity of the display panel in the bendable region, thereby better maintaining a bending profile in the bendable region. Furthermore, since the driving circuit layer is arranged bypassing the bendable region, to enable a signal line in the driving circuit layer to be connected to a driver chip in the binding region, the signal line can be connected to the driver chip through the conductive layer, so that a signal outputted by the driver chip can be transmitted to the signal line, and erosion by water and oxygen on a connection lead in the conductive layer can be reduced through the first inorganic layer structure.

The display panel provided in this embodiment of this application may be applied to a terminal device including a display function. The terminal device may be a device such as a mobile phone, a tablet computer, an e-reader, a notebook computer, an in-vehicle device, a wearable device, or a TV that needs to be set with a narrow bezel.

In this embodiment of this application, description is made by using an example in which the terminal device is a mobile phone. As shown in <FIG>, a terminal device <NUM> includes a display panel <NUM> and a housing <NUM>. The display panel <NUM> is a rigid display panel and is mounted on the housing <NUM> for displaying an image, a video, or the like. The display panel <NUM> and the housing <NUM> jointly enclose an accommodating cavity of the terminal device <NUM>, so that electronic devices of the terminal device <NUM> can be placed through the accommodating cavity, and the electronic devices located in the accommodating cavity ca be sealed and protected simultaneously.

As shown in <FIG>, the display panel <NUM> includes a display region AA and a bezel region NA surrounding the display region AA. The bezel region NA includes a first peripheral region N11, a bendable region N12, and a binding region N13, where the first peripheral region N11, the bendable region N12, and the binding region N13 are sequentially arranged away from the display region AA. That is, in a direction along which the display region AA points to the binding region N13, regions of the display panel <NUM> are sequentially the display region AA, the first peripheral region N11, the bendable region N12, and the binding region N13.

In some embodiments, the first peripheral region N11, the bendable region N12, and the binding region N13 are located on one side of the display region AA. Certainly, the first peripheral region N11, the bendable region N12, and the binding region N13 may also be arranged on at least two sides of the display region AA.

The first peripheral region N11 refers to a region between the display region AA and the bendable region N12. In an actual product, encapsulation needs to be performed on an outer periphery of the display region AA of the display panel <NUM> through an encapsulation structure such as a sealant or an encapsulation film layer, and a signal line inside the display region AA needs to lap with a peripheral lead. Therefore, the first peripheral region N11 may include a region occupied by the encapsulation structure and a lapping region of the signal line inside the display region and the peripheral lead.

In a case that the first peripheral region N11, the bendable region N12, and the binding region N13 are located on one side of the display region AA, the bezel region NA further includes a second peripheral region N21, a third peripheral region N31, and a fourth peripheral region N41, where the first peripheral region N11 and the third peripheral region N31 are located on two opposing sides of the display region AA, both the second peripheral region N21 and the fourth peripheral region N41 are located between the first peripheral region N11 and the third peripheral region N31, and the second peripheral region N21 and the fourth peripheral region N41 are also located on the two opposing sides of the display region AA.

For example, the first peripheral region N11, the bendable region N12, and the binding region N13 may be located on a lower side of the display region AA; the third peripheral region N31 may be located on an upper side of the display region AA; the second peripheral region N21 may be located on a left side of the display region AA; and the fourth peripheral region N41 may be located on a right side of the display region AA.

The following describes specific structures of the rigid display panel through four different structure implementations. Structures of the display panel <NUM> shown in <FIG> are cross-sectional views obtained along a cross section C-C' after the binding region N13 of the display panel <NUM> shown in <FIG> is bent to a backlight side of the display panel <NUM>.

In a first implementation not forming part of the invention, as shown in <FIG>, the display panel <NUM> includes a rigid substrate <NUM>, a driving circuit layer <NUM>, and a first organic layer structure <NUM>, a first inorganic layer structure <NUM>, a conductive layer <NUM>, and a second organic layer structure <NUM> that are arranged in a stacked manner.

The rigid substrate <NUM> is arranged bypassing the bendable region N12, that is, the rigid substrate <NUM> is distributed in the display region AA, the first peripheral region N11, the binding region N13, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41. The rigid substrate <NUM> is disconnected at a position where the bendable region N12 is located. The rigid substrate <NUM> located in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 is an integral structure, and includes a first surface and a second surface that are arranged opposite to each other, and a first side surface, a second side surface, a third side surface, and a fourth side surface that are arranged between the first surface and the second surface and connected to each other end to end. The first side surface is a side surface on which the first peripheral region N11 is located, the second side surface is a side surface on which the second peripheral region N21 is located, the third side surface is a side surface on which the third peripheral region N31 is located, and the fourth side surface is a side surface on which the fourth peripheral region N41 is located. The rigid substrate <NUM> located in the binding region N13 is an integral structure, and includes a third surface and a fourth surface that are arranged opposite to each other, and a fifth side surface, a sixth side surface, a seventh side surface, and an eighth side surface that are arranged between the third surface and the fourth surface and connected to each other end to end. Before the binding region N13 is bent to the backlight side of the display panel <NUM> through the bendable region N12, the fourth surface and the first surface are located on a same plane, the third surface and the second surface are located on a same plane, the seventh side surface and the first side surface are arranged opposite to each other, and the fifth side surface is located on a side of the seventh side surface away from the first peripheral region N11. The bendable region N12 is a region between the first side surface and the seventh side surface. After the binding region N13 is bent to the backlight side of the display panel <NUM> through the bendable region N12, the first surface and the fourth surface are arranged opposite to each other, the third surface is located on a side of the fourth surface away from the first surface, the second surface is located on a side of the first surface away from the fourth surface, and the seventh side surface and the first side surface may be located on a same plane. The backlight side of the display panel <NUM> refers to a side on which the first surface of the rigid substrate <NUM> is located.

The rigid substrate <NUM> may be a glass substrate, a polymethyl methacrylate (polymethyl methacrylate, PMMA) substrate, or the like, and the PMMA substrate may also be referred to as an acrylic substrate.

Both the second surface of the rigid substrate <NUM> located in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 and the third surface of the rigid substrate <NUM> located in the binding region N13 are arranged with the driving circuit layer <NUM>. The driving circuit layer <NUM> is arranged bypassing the bendable region N12, that is, the driving circuit layer <NUM> is distributed in the display region AA, the first peripheral region N11, the binding region N13, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 and disconnected at the position where the bendable region N12 is located.

In this embodiment of this application, the display panel <NUM> may be an OLED display panel, and therefore the OLED display panel <NUM> located in the display region AA actually includes a plurality of sub-pixels. Each of the sub-pixels includes a pixel driving circuit and light-emitting device. The light-emitting device is arranged on a side of the pixel driving circuit away from the rigid substrate <NUM> and is connected to the pixel driving circuit. The pixel driving circuit can provide a driving voltage to the light-emitting device to control a light-emitting state of the light-emitting device. Therefore, the driving circuit layer <NUM> located in the display region AA actually refers to the pixel driving circuit corresponding to each of the sub-pixels in the display region AA.

It should be noted that the pixel driving circuit has various structures. For example, the structures of the pixel driving circuit may be a 6T1C pixel driving circuit, a 7T1C pixel driving circuit, a 3T1C pixel driving circuit, and the like. "T" represents a transistor in the pixel driving circuit, and a number before "T" represents a quantity of transistors in the pixel driving circuit. "C" represents a storage capacitor in the pixel driving circuit, and a number before "C" represents a quantity of storage capacitors in the pixel driving circuit.

The transistor in the pixel driving circuit is formed by an active layer <NUM>, a gate insulation layer <NUM>, a gate layer <NUM>, an interlayer dielectric layer <NUM>, and a source-drain electrode layer that are arranged in a stacked manner. In this case, the driving circuit layer <NUM> located in the display region AA includes the active layer <NUM>, the gate insulation layer <NUM>, the gate layer <NUM>, the interlayer dielectric layer <NUM>, and the source-drain electrode layer. For the driving circuit layer <NUM> located in the display region AA, the active layer <NUM> is located on the second surface of the rigid substrate <NUM>, the gate insulation layer <NUM> covers the active layer <NUM> and the second surface of the rigid substrate <NUM>, the gate layer <NUM> is located on a side of the gate insulation layer <NUM> away from the rigid substrate <NUM>, the interlayer dielectric layer <NUM> covers the gate layer <NUM> and the gate insulation layer <NUM>, and the source-drain electrode layer is located on a side of the interlayer dielectric layer <NUM> away from the rigid substrate <NUM>.

The gate layer <NUM> includes a gate of each transistor, an EM (a light-emitting control) signal line, a gate line, a reset signal line, and the like. The source-drain electrode layer includes a source <NUM> and a drain <NUM> of each transistor, a data line, a VDD (high-level power supply) signal line, and the like.

The driving circuit layer <NUM> in the first peripheral region N11, the binding region N13, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 actually refers to an insulating dielectric layer in the driving circuit layer <NUM>, for example, the gate insulation layer <NUM> and the interlayer dielectric layer <NUM> in the driving circuit layer <NUM>. For the driving circuit layer <NUM> located in the binding region N13, the gate insulation layer <NUM> is located on the third surface of the rigid substrate <NUM>, and the interlayer dielectric layer <NUM> is located on a side of the gate insulation layer <NUM> away from the rigid substrate <NUM>.

The transistor in the driving circuit layer <NUM> shown in <FIG> is a bottom-gate transistor. Certainly, the transistor in the driving circuit layer <NUM> in this embodiment of this application may also be a top-gate transistor. In addition, there may alternatively be a plurality of gate layers in the driving circuit layer <NUM>, and every two adjacent gate layers need to be spaced apart through the gate insulation layer. There may alternatively be a plurality of source-drain electrode layers in the driving circuit layer <NUM>, and every two adjacent source-drain electrode layers need to be spaced apart through the interlayer dielectric layer.

The first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> are arranged in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, the bendable region N12, and the binding region N13 in a stacked manner. In the display region AA, the binding region N13, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> are sequentially arranged away from the second surface of the rigid substrate <NUM>. Specifically, the first organic layer structure <NUM> is located on a side of the driving circuit layer <NUM> away from the rigid substrate <NUM>; the first inorganic layer structure <NUM> is located on a side of the first organic layer structure <NUM> away from the rigid substrate <NUM>; the conductive layer <NUM> is located on a side of the first inorganic layer structure <NUM> away from the rigid substrate <NUM>; and the second organic layer structure <NUM> is located on a side of the conductive layer <NUM> away from the rigid substrate <NUM>.

Before the bendable region N12 of the display panel <NUM> is bent, the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the bendable region N12 are sequentially arranged away from the second surface of the rigid substrate <NUM>; and after the bendable region N12 of the display panel <NUM> is bent, the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the bendable region N12 are sequentially arranged away from the first side surface of the rigid substrate <NUM>. That is, there is a certain spacer region between the first organic layer structure <NUM> and the first side surface of the rigid substrate <NUM>, the first inorganic layer structure <NUM> is located on a side of the first organic layer structure <NUM> away from the first side surface of the rigid substrate <NUM>, the conductive layer <NUM> is located on a side of the first inorganic layer structure <NUM> away from the first side surface of the rigid substrate <NUM>, and the second organic layer structure <NUM> is located on a side of the conductive layer <NUM> away from the first side surface of the rigid substrate <NUM>.

The first organic layer structure <NUM> includes an organic layer, where the organic layer may also be referred to as a flat layer, a material of the organic layer may be an organic material such as resin, and a thickness of the organic layer in the first organic layer structure <NUM> may be <NUM>. The first inorganic layer structure <NUM> includes an inorganic layer, where the inorganic layer may also be referred to as a passivation layer, and a material of the inorganic layer may be an inorganic material such as silicon oxide or silicon nitride. A material of the conductive layer <NUM> may be a metal material such as titanium, aluminum, molybdenum, or copper. The second organic layer structure <NUM> includes an organic layer, where the organic layer may also be referred to as a flat layer, a material of the organic layer may be an organic material such as resin, and a thickness of the organic layer in the second organic layer structure <NUM> may be <NUM>.

The conductive layer <NUM> actually includes a plurality of connection leads, where one end of each of the connection leads is connected to a signal line in the driving circuit layer <NUM> through a first via running through the first inorganic layer structure <NUM> and the first organic layer structure <NUM>, and an other end of each of the connection leads is further connected to a driver chip (not shown in <FIG>) arranged in the binding region N13 through a second via <NUM> running through the second organic layer structure <NUM>.

In an actual product, the driver chip may be fixed in the binding region N13 of the display panel <NUM> by using a COP (chip on panel). The COP refers to a process of directly binding the driver chip to the display panel <NUM>. Certainly, the driver chip may be fixed in the binding region N13 of the display panel <NUM> in another manner, for example, the driver chip is fixed in the binding region N13 of the display panel <NUM> in a manner of using a chip on film (chip on film, COF) or a COG (chip on glass).

Therefore, in a case that the driving circuit layer <NUM> is arranged bypassing the bendable region N12, the driver chip may be connected to the signal line in the driving circuit layer <NUM> through the conductive layer <NUM>, so that a signal outputted by the driver chip can be transmitted to the signal line in the driving circuit layer <NUM>, thereby enabling the pixel driving circuit in the driving circuit layer <NUM> to work normally.

The signal line in the driving circuit layer <NUM> may be a data line, a VDD signal line, or the like, and the data line or the VDD signal line is connected to the source of the transistor in the driving circuit layer <NUM>. Therefore, in <FIG>, the connection lead is connected to the source <NUM> of the transistor through the first via, to represent a connection relationship between the connection lead and the signal line in the driving circuit layer <NUM>.

In this case, the signal line in the driving circuit layer <NUM> may be distributed only in the display region AA, and therefore, the first via is arranged in the display region AA, and the connection lead is connected to the signal line in the driving circuit layer <NUM> through the first via in the display region AA.

Certainly, it may be understood that the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> may alternatively be distributed only in the first peripheral region N11, the bendable region N12, and the binding region N13. In this case, the first organic layer structure <NUM> in the first peripheral region N11 is located on the side of the driving circuit layer <NUM> away from the rigid substrate <NUM>. Alternatively, the conductive layer <NUM> and the second organic layer structure <NUM> may be distributed only in the first peripheral region N11, the bendable region N12, the binding region N13, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, that is, the conductive layer <NUM> and the second organic layer structure <NUM> are arranged only bypassing the bendable region N12.

It should be noted that the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the bendable region N12 can enhance rigidity of the display panel <NUM> in the bendable region N12, to better maintain a bending profile in the bendable region N12. The maintenance of the bending profile in the bendable region N12 is mainly achieved through the organic layer structures (that is, the first organic layer structure <NUM> and the second organic layer structure <NUM>) in the bendable region N12. In addition, the organic layer structures arranged in the bendable region N12 include the first organic layer structure <NUM> and the second organic layer structure <NUM> instead of only including a single organic layer. The purpose is to better support the bendable region N12 by arranging two layers of organic layer structures, thereby maintaining the bending profile in the bendable region N12. In a case that only a single-layer organic layer structure is arranged in the bendable region N12, a support effect is poor, and therefore it is difficult to maintain the bending profile in the bendable region N12 better. The first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> further extend to the first peripheral region N11 and the binding region N13, which is mainly intended to enable the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> to be normally lapped on the driving circuit layer <NUM> in the first peripheral region N11 and the binding region N13. In a case that only the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> are arranged in the bendable region N12, after the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 are peeled off, the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the bendable region N12 may be broken, thereby failing to maintain a profile of the bendable region N12.

The conductive layer <NUM> arranged in the bendable region N12, the first peripheral region N11, and the binding region N13 is mainly configured to connect the signal line in the driving circuit layer <NUM> to the driver chip in the binding region N13, so that the signal outputted by the driver chip can be transmitted to the signal line through the conductive layer <NUM>.

The first inorganic layer structure <NUM> arranged in the bendable region N12, the first peripheral region N11, and the binding region N13 is mainly configured to block water and oxygen, thereby reducing erosion by the water and oxygen on the connection lead in the conductive layer <NUM>. Therefore, in some embodiments, the first inorganic layer structure <NUM> shown in <FIG> may alternatively be removed, so that the first organic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> are sequentially arranged in a stacked manner in the bendable region N12, the first peripheral region N11, and the binding region N13.

In this embodiment of this application, as shown in <FIG>, the display panel <NUM> further includes structures such as an anode layer <NUM>, a pixel defining layer <NUM>, a light-emitting layer <NUM>, a cathode layer <NUM>, and an encapsulation layer <NUM>.

The anode layer <NUM> is distributed in the display region AA and located on a side of the second organic layer structure <NUM> away from the rigid substrate <NUM>. In an actual product, the anode layer <NUM> includes an anode corresponding to each sub-pixel, and anodes between every two adjacent sub-pixels are disconnected. A material of the anode layer <NUM> may be a metal material such as aluminum and silver.

The pixel defining layer <NUM> is distributed in the display region AA, the first peripheral region N11, the bendable region N12, and the binding region N13. In this case, in the binding region N13, the second via <NUM> further runs through the pixel defining layer <NUM>. Certainly, the pixel defining layer <NUM> may alternatively be distributed in the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41. The pixel defining layer <NUM> is located on a side of the second organic layer structure <NUM> away from the first organic layer structure <NUM>. In addition, in the display region AA, the pixel defining layer includes a plurality of pixel openings, and each pixel opening exposes at least some anodes. A thickness of the pixel defining layer <NUM> may be <NUM>. The light-emitting layer <NUM> is located in the display region AA, and is specifically located in the pixel opening defined by the pixel defining layer <NUM>.

The cathode layer <NUM> may be distributed in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, and is located on a side of the pixel defining layer <NUM> away from the rigid substrate <NUM>. A material of the cathode layer <NUM> may be a conductive material with a high transmittance such as indium tin oxides (indium tin oxides, ITO) and another material.

The anode layer <NUM>, the light-emitting layer <NUM>, and the cathode layer <NUM> jointly form the light-emitting device, and a light-emitting side of light emitted by the light-emitting device is a side facing the cathode layer <NUM>. Therefore, by using the conductive material with the high transmittance to manufacture the cathode layer <NUM>, a loss generated in a case that the light emitted by the light-emitting device passes through the cathode layer <NUM> can be reduced.

The encapsulation layer <NUM> may be distributed in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, and is located on a side of the cathode layer <NUM> away from the rigid substrate <NUM>.

In this case, a film layer structure in the bendable region N12 includes the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, the second organic layer structure <NUM>, and the pixel defining layer <NUM> that are arranged in a stacked manner, and the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, the second organic layer structure <NUM>, and the pixel defining layer <NUM> are sequentially arranged away from the first side surface of the rigid substrate <NUM>.

It should be noted that the display panel <NUM> may further be arranged with structures such as a touch layer, a polarizer, an optical adhesive layer, and a cover plate on a side of the encapsulation layer <NUM> away from the rigid substrate <NUM>.

In addition, to enable the structure of the display panel <NUM> to be stable after the display panel <NUM> in the bendable region N12 is bent, an adhesive layer <NUM> may be arranged between the rigid substrate <NUM> located in the binding region N13 and the rigid substrate <NUM> located in the display region AA. The rigid substrate <NUM> in the binding region N13 is adhered to the rigid substrate <NUM> in the display region AA through the adhesive layer <NUM>, so that a structure in the binding region N13 can be stably fixed on the backlight side of the display panel <NUM>. In this case, the adhesive layer <NUM> is actually located between the first surface of the rigid substrate <NUM> in the display region AA and the fourth surface of the rigid substrate <NUM> in the binding region N13.

Based on the above, by peeling off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12, the display panel <NUM> in the binding region N13 can be bent to the backlight side of the display panel <NUM> through the bendable region N12, to reduce a width of a bezel on a side where the binding region N13 of the display panel <NUM> is located. In addition, by arranging the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the first peripheral region N11, the bendable region N12, and the binding region N13, the bending profile in the bendable region N12 can be maintained, and the driver chip can be connected to the signal line in the driving circuit layer <NUM> through the conductive layer <NUM>, and the erosion by the water and oxygen on the connection lead in the conductive layer <NUM> can be reduced.

In a second implementation not forming part of the invention, as shown in <FIG>, the display panel <NUM> includes a rigid substrate <NUM>, a driving circuit layer <NUM>, and a first organic layer structure <NUM>, a first inorganic layer structure <NUM>, a conductive layer <NUM>, and a second organic layer structure <NUM> that are arranged in a stacked manner.

The first organic layer structure <NUM> includes two organic layers, which are respectively a first organic layer <NUM> and a second organic layer <NUM>. The first organic layer <NUM> and the second organic layer <NUM> are distributed in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, the bendable region N12, and the binding region N13.

In the display region AA, the binding region N13, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, the second organic layer <NUM> is located on a side of the first organic layer <NUM> away from the rigid substrate <NUM>. Before the bendable region N12 of the display panel <NUM> is bent, the second organic layer <NUM> in the bendable region N12 is located on a plane that is away from a second surface of the rigid substrate <NUM> on which the first organic layer <NUM> is located. After the bendable region N12 of the display panel <NUM> is bent, the second organic layer <NUM> in the bendable region N12 is located on a first side surface of the first organic layer <NUM> away from the rigid substrate <NUM>.

In an actual product, materials of the first organic layer <NUM> and the second organic layer <NUM> may be the same, for example, the materials of the first organic layer <NUM> and the second organic layer <NUM> are both resin materials. Alternatively, the materials of the first organic layer <NUM> and the second organic layer <NUM> may be different. Thicknesses of the first organic layer <NUM> and the second organic layer <NUM> may be equal, for example, the thicknesses of the first organic layer <NUM> and the second organic layer <NUM> are both <NUM>. Alternatively, the thicknesses of the first organic layer <NUM> and the second organic layer <NUM> may not be equal, and this is not limited in this embodiment of this application.

It should be noted that a difference between the display panel <NUM> shown in <FIG> and the display panel shown <NUM> in <FIG> lies in that the first organic layer structure <NUM> in the display panel <NUM> shown in <FIG> includes one organic layer, while the first organic layer structure <NUM> in the display panel <NUM> shown in <FIG> includes two organic layers, and the remaining structures are basically the same. To avoid repetition, details are not described herein again. For specific structures of the film layers such as the rigid substrate <NUM>, the driving circuit layer <NUM>, the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM> and the second organic layer structure <NUM>, reference may be made to the description in the first implementation. In a case that the first organic layer structure <NUM> includes two organic layers, the rigidity of the display panel <NUM> in the bendable region N12 can be further enhanced, thereby better maintaining the bending profile in the bendable region N12.

It is found through a test that in the display panel <NUM> shown in <FIG>, a width of the bendable region N12 may be <NUM>, and a width of the first peripheral region N11 is <NUM>. The width refers to a size of the first peripheral region N11 in a direction pointing to the third peripheral region N13, so that the width of the bezel on the side where the binding region N13 of the display panel <NUM> is located can be reduced to <NUM>.

In a third implementation, as shown in <FIG>, the display panel <NUM> includes a rigid substrate <NUM>, a driving circuit layer <NUM>, and a first organic layer <NUM>, a second inorganic layer structure <NUM>, a second organic layer <NUM>, a first inorganic layer structure <NUM>, a conductive layer <NUM>, and a second organic layer structure <NUM> that are arranged in a stacked manner.

In this case, the first organic layer structure <NUM> includes two organic layers, which are respectively the first organic layer <NUM> and the second organic layer <NUM>. The second inorganic layer structure <NUM> is arranged between the first organic layer <NUM> and the second organic layer <NUM>. The second inorganic layer structure <NUM> includes an inorganic layer, and the second inorganic layer structure <NUM> is distributed in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, the bendable region N12, and the binding region N13.

Certainly, in some embodiments, the second inorganic layer structure <NUM> may alternatively be distributed only in the first peripheral region N11, the bendable region N12, and the binding region N13. The inorganic layer in the second inorganic layer structure <NUM> may not be limited to be one, and the second inorganic layer structure <NUM> may also include two inorganic layers, three inorganic layers, or the like.

In some other embodiments, the first organic layer structure <NUM> may include more than two organic layers. In this case, the second inorganic layer structure <NUM> may be arranged between any two adjacent organic layers, or the second inorganic layer structure <NUM> may be arranged between some two adjacent organic layers. For example, the first organic layer structure <NUM> includes three organic layers, which are respectively the first organic layer <NUM>, the second organic layer <NUM>, and a third organic layer. The second inorganic layer structure <NUM> is arranged between the first organic layer <NUM> and the second organic layer <NUM>, and/or the second inorganic layer structure <NUM> is arranged between the second organic layer <NUM> and the third organic layer.

As shown in <FIG>, a source <NUM> of a transistor is used to represent a signal line in the driving circuit layer <NUM>, and the signal line in the driving circuit layer <NUM> is not only distributed in the display region AA, but also extends into the first peripheral region N11. In this case, a first via may be arranged in the first peripheral region N11, and in the first peripheral region N11, a connection lead is connected to the signal line in the driving circuit layer <NUM> through the first via. In addition, the first via actually runs through the first inorganic layer structure <NUM>, the second organic layer <NUM>, the second inorganic layer structure <NUM>, and the first organic layer <NUM>.

It should be noted that there are two differences between the display panel <NUM> shown in <FIG> and the display panel <NUM> shown in <FIG>. One difference lies in that the first organic layer structure <NUM> in the display panel <NUM> shown in <FIG> includes the first organic layer <NUM> and the second organic layer <NUM>, but the display panel <NUM> shown in <FIG> not only includes the first organic layer <NUM> and the second organic layer <NUM>, but also includes the second inorganic layer structure <NUM> that is arranged between the first organic layer <NUM> and the second organic layer <NUM>. The other difference lies in that the first via in the display panel <NUM> shown in <FIG> is located in the display region AA, while the first via in the display panel <NUM> shown in <FIG> is located in the first peripheral region N11. The remaining structures are basically the same. To avoid repetition, details are not described herein again.

Based on the above, the display panels <NUM> shown in <FIG> are all OLED display panels, while the display panel in this embodiment of this application may alternatively be an LCD display panel shown in <FIG>.

In a fourth implementation not forming part of the invention, as shown in <FIG>, the display panel <NUM> includes a rigid substrate <NUM>, a driving circuit layer <NUM>, and a first organic layer structure <NUM>, a first inorganic layer structure <NUM>, a conductive layer <NUM>, and a second organic layer structure <NUM> that are arranged in a stacked manner.

The driving circuit layer <NUM> is also arranged bypassing a bendable region N12. The driving circuit layer <NUM> located in the display region AA actually refers to a structure such as a pixel transistor corresponding to each sub-pixel in the display region AA. A gate of the pixel transistor is connected to a gate line, a source of the pixel transistor is connected to a data line, and a drain of the pixel transistor is connected to a pixel electrode <NUM>. The pixel transistor is configured to provide a pixel voltage to the pixel electrode <NUM> under the action of the gate line and the data line, so that liquid crystal molecules in a liquid crystal layer <NUM> deflect under the action of the pixel voltage provided by the pixel electrode <NUM> and a common voltage provided by a common electrode, to implement a display function.

The first organic layer structure <NUM> and the first inorganic layer structure <NUM> that are arranged in a stacked manner are arranged in a display region AA, a first peripheral region N11, a second peripheral region N21, a third peripheral region N31, a fourth peripheral region N41, a bendable region N12, and a binding region N13. In the display region AA, the binding region N13, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, the first inorganic layer structure <NUM> is located on a side of the first organic layer structure <NUM> away from a second surface of the rigid substrate <NUM>.

Before the bendable region N12 of the display panel <NUM> is bent, the first organic layer structure <NUM> and the first inorganic layer structure <NUM> in the bendable region N12 are sequentially arranged away from a plane where the second surface of the rigid substrate <NUM> is located. After the bendable region N12 of the display panel <NUM> is bent, the first organic layer structure <NUM> and the first inorganic layer structure <NUM> in the bendable region N12 are sequentially arranged away from a first side surface of the rigid substrate <NUM>.

The conductive layer <NUM> and the second organic layer structure <NUM> are arranged bypassing the display region AA, that is, the conductive layer <NUM> and the second organic layer structure <NUM> are distributed in the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, the bendable region N12, and the binding region N13. By removing the conductive layer <NUM> and the second organic layer structure <NUM> in the display region AA, a quantity of film layers in the display region AA can be reduced, and a transmittance of the display panel <NUM> in the display region AA can be improved.

In the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, and the binding region N13, the second organic layer structure <NUM> is located on a side of the conductive layer <NUM> away from the second surface of the rigid substrate <NUM>. Before the bendable region N12 of the display panel <NUM> is bent, the conductive layer <NUM> and the second organic layer structure <NUM> in the bendable region N12 are sequentially arranged away from the plane where the second surface of the rigid substrate <NUM> is located. After the bendable region N12 of the display panel <NUM> is bent, in the bendable region N12, the second organic layer structure <NUM> is located on a first side surface of the conductive layer <NUM> away from the rigid substrate <NUM>.

Certainly, in some embodiments, the conductive layer <NUM> and the second organic layer structure <NUM> may alternatively be arranged only in the first peripheral region N11, the bendable region N12, and the binding region N13. In this case, a signal line (such as a data line) in the driving circuit layer <NUM> further extends to the first peripheral region N11, and a first via is located in the first peripheral region N11. In the first peripheral region N11, a connection lead included in the conductive layer <NUM> is connected to the signal line in the driving circuit layer <NUM> through the first via running through the first inorganic layer structure <NUM> and the first organic layer structure <NUM>.

It may be understood that in a case that the conductive layer <NUM> further extends to the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, the first via may be distributed in any one or more of the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, and it is also necessary for the corresponding signal line to extend to any one or more of the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41. In any one or more of the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, the connection lead included in the conductive layer <NUM> is connected to the signal line in the driving circuit layer <NUM> through the first via.

In addition, as shown in <FIG>, the display panel <NUM> further includes structures such as a pixel electrode <NUM>, a liquid crystal layer <NUM>, a color film substrate <NUM>, and a cover plate <NUM> that are sequentially arranged away from the first inorganic layer structure <NUM>. The pixel electrode <NUM> and the liquid crystal layer <NUM> may be distributed only in the display region AA, and the color film substrate <NUM> may be distributed in the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41. The cover plate <NUM>, in addition to covering the display region AA, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41, further extends to a position where the bendable region N12 is located.

It is found through a test that in the display panel shown in <FIG>, a width of the bendable region N12 may be <NUM>, and a width of the first peripheral region N11 may be <NUM>, so that a width of a bezel on a side where the binding region N13 of the display panel <NUM> is located can be reduced to <NUM>.

Based on the above, it may be learned that in this embodiment of this application, the first organic layer structure <NUM> may include at least one organic layer, and correspondingly, the second organic layer structure <NUM> may also include at least one organic layer, and the first inorganic layer structure <NUM> includes at least one inorganic layer.

Four different display panels <NUM> are shown above. By peeling off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12, the display panel <NUM> in the binding region N13 can be bent to the backlight side of the display panel <NUM> through the bendable region N12, to reduce the width of the bezel on the side where the binding region N13 of the display panel <NUM> is located. The display panel <NUM> may be an OLED display panel or an LCD display panel. Certainly, in some products, the display panel <NUM> in this embodiment of this application may also be a quantum dot light emitting diodes (quantum dot light emitting diodes, QLED) display panel.

In addition, by arranging the first organic layer structure <NUM>, the first inorganic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> in the first peripheral region N11, the bendable region N12, and the binding region N13, the bending profile in the bendable region N12 can be maintained, and the driver chip can be connected to the signal line in the driving circuit layer <NUM> through the conductive layer <NUM>, and the erosion by the water and oxygen on the connection lead in the conductive layer <NUM> can be reduced.

<FIG> is a flowchart of a manufacturing method for a rigid display panel according to an embodiment not forming part of the invention.

Referring to <FIG>, the manufacturing method for a rigid display panel may specifically include the following steps:.

In this embodiment of this application, an active layer <NUM>, a gate insulation layer <NUM>, a gate layer <NUM>, an interlayer dielectric layer <NUM>, and a source-drain electrode layer are sequentially formed on the rigid substrate <NUM>, to obtain the driving circuit layer <NUM> through manufacturing.

Step <NUM>. Sequentially form a first organic layer structure, a first inorganic layer structure, a conductive layer, and a second organic layer structure on the driving circuit layer, where the first organic layer structure, the first inorganic layer structure, the conductive layer, and the second organic layer structure are distributed in at least the first peripheral region, the bendable region, and the binding region.

In this embodiment of this application, after the driving circuit layer <NUM> is formed on the rigid substrate <NUM>, the first organic layer structure <NUM> is first formed in the driving circuit layer <NUM>, and then the first inorganic layer structure <NUM> is formed on the first organic layer structure <NUM>.

Since a connection lead included in the subsequently formed conductive layer <NUM> needs to be connected to a signal line in the driving circuit layer <NUM> through a first via running through the first inorganic layer structure <NUM> and the first organic layer structure <NUM>, after the first inorganic layer structure <NUM> is formed on the first organic layer structure <NUM>, it is also necessary to pattern the first inorganic layer structure <NUM> and the first organic layer structure <NUM>, to form the first via. A patterning process includes process steps such as photoresist coating, exposure, development, etching, and photoresist peeling off.

Certainly, in a case that the first inorganic layer structure <NUM> and the first organic layer structure <NUM> are distributed only in the first peripheral region N11, the bendable region N12, and the binding region N13, the first inorganic layer structure <NUM> and the first organic layer structure <NUM> in the display region AA, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 may be simultaneous removed in a case that the first via is formed. After the first inorganic layer structure <NUM> is formed on the first organic layer structure <NUM>, a thin conductive film is formed on a side of the first inorganic layer structure <NUM> away from the rigid substrate <NUM>, and then, the thin conductive film is patterned to form the conductive layer <NUM> including a plurality of connection leads. Finally, the second organic layer structure <NUM> is formed on a side of the conductive layer <NUM> away from the rigid substrate <NUM>.

In a case that the second organic layer structure <NUM> and the conductive layer <NUM> are distributed only in the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, the fourth peripheral region N41, the bendable region N12, and the binding region N13, when the thin conductive film is patterned to form the conductive layer <NUM>, the thin conductive film in the display region AA needs to be removed simultaneously, and when the second organic layer structure <NUM> is formed, a material of the second organic layer structure <NUM> in the display region AA also needs to be removed.

It should be noted that in a case that the first inorganic layer structure <NUM> is not arranged in the first peripheral region N11, the bendable region N12, and the binding region N13, the first organic layer structure <NUM>, the conductive layer <NUM>, and the second organic layer structure <NUM> may be sequentially formed in the driving circuit layer <NUM>. Using an example in which a material of the first organic layer structure <NUM> is light-sensitive resin, the first via running through the first organic layer structure <NUM> may be directly formed in an exposure and development manner.

In addition, for an OLED display panel, after the second organic layer structure <NUM> is formed, it is also necessary to sequentially form structures such as an anode layer <NUM>, a pixel defining layer <NUM>, a light-emitting layer <NUM>, a cathode layer <NUM>, and an encapsulation layer <NUM>. For an LCD display panel, after the second organic layer structure <NUM> is formed, it is also necessary to form a pixel electrode <NUM>, fit a color film substrate <NUM> to the rigid substrate <NUM> on which the pixel electrode <NUM> is formed, and inject liquid crystal molecules to form a liquid crystal layer <NUM>. Finally, a cover plate <NUM> is attached to a side of the color film substrate <NUM> away from the rigid substrate <NUM>.

Step <NUM>. Peel off the rigid substrate and the driving circuit layer in the bendable region.

In this embodiment of this application, after film layers of the display panel <NUM> are manufactured, the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 are peeled off.

Specifically, laser irradiation may be performed on a side of the rigid substrate <NUM> away from the driving circuit layer <NUM> by using a light-shielding fixture, to peel off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12. In a case that laser is irradiated on the side of the rigid substrate <NUM> away from the driving circuit layer <NUM>, an interface between the interlayer dielectric layer <NUM> in the driving circuit layer <NUM> and the first organic layer structure <NUM> is separated due to ashing, so that the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 can be peeled off from the display panel <NUM>.

As shown in <FIG>, a laser lift-off (laser lift-off, LLO) device includes a laser source <NUM>, an attenuator <NUM>, an optical system <NUM>, a reflecting device <NUM>, and a light-shielding fixture <NUM>. The laser source <NUM> is configured to emit laser. The attenuator <NUM> is configured to modulate the laser emitted by the laser source <NUM>. The optical system <NUM> is configured to perform processing such as shaping and laser homogenization on the laser modulated by the attenuator <NUM>, to obtain a uniform light beam that can keep stable for a long time. The reflecting device <NUM> is configured to reflect the laser processed by the optical system <NUM> to a position where the light-shielding fixture <NUM> is located.

The light-shielding fixture <NUM> includes a light-shielding region <NUM> and a light-transmitting region <NUM>. The light-transmitting region <NUM> is arranged corresponding to the bendable region N12 of the display panel <NUM>, and the light-shielding region <NUM> is arranged corresponding to a region other than the bendable region N12. That is, the light-shielding region <NUM> is arranged corresponding to the display region AA, the binding region N13, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41.

Therefore, the laser emitted by the reflecting device <NUM> can be patterned through the light-shielding fixture <NUM>, so that the laser can be irradiated to the bendable region N12 of the display panel <NUM> through the light-transmitting region <NUM> of the light-shielding fixture <NUM>, thereby peeling off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12. The light-shielding region <NUM> of the light-shielding fixture <NUM> shields the laser to prevent performance of the display panel <NUM> from being affected due to the laser being irradiated to the display region AA, the binding region N13, the first peripheral region N11, the second peripheral region N21, the third peripheral region N31, and the fourth peripheral region N41 of the display panel <NUM>.

<FIG> is a schematic structural diagram of the rigid display panel <NUM> before the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 are peeled off. After the bendable region N12 of the display panel <NUM> is irradiated by using the light-shielding fixture <NUM>, the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 can be removed, to obtain a display panel <NUM> shown in <FIG>. Specifically, the rigid substrate <NUM> in the bendable region N12, and the gate insulation layer <NUM> and the interlayer dielectric layer <NUM> in the driving circuit layer <NUM> are peeled off.

It should be noted that, as shown in <FIG>, in an actual manufacturing process of the display panel <NUM>, a plurality of display panels <NUM> are manufactured at one time, and the plurality of display panels <NUM> may be collectively referred to as a mother board. Then, the mother board is cut into a plurality of panel groups <NUM>. Each of the plurality of panel groups <NUM> includes two columns of display panels <NUM>, and each column of display panels <NUM> includes a plurality of display panels <NUM>. In this case, bendable regions N12 of the two columns of display panels <NUM> are all arranged toward a region between the two columns of display panels <NUM>. Therefore, in a case that the light-shielding fixture <NUM> is used to peel off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 of the display panel <NUM>, rigid substrates <NUM> and driving circuit layers <NUM> in bendable regions N12 of all display panels in the panel groups <NUM> may be peeled off at one time.

Certainly, laser lift-off may be performed once by using the light-shielding fixture <NUM>, to peel off the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 of one display panel <NUM> or to peel off the rigid substrates <NUM> and the driving circuit layers <NUM> in the bendable regions N12 of one column of display panels <NUM>.

After the rigid substrate <NUM> and the driving circuit layer <NUM> in the bendable region N12 of the display panel <NUM> are peeled off, a driver chip is bound to the binding region N13 of the display panel <NUM>.

Step <NUM>. Bend the bendable region toward a backlight side of the display panel, so that the binding region is bent to the backlight side of the display panel.

In this embodiment of this application, after the driver chip is bound to the binding region N13 of the display panel <NUM>, an adhesive layer <NUM> is first arranged on a surface (that is, a first surface) at a side of the rigid substrate <NUM> in the display region AA away from the first organic layer structure <NUM> and/or a surface (that is, a fourth surface) at a side of the rigid substrate <NUM> in the binding region N13 away from the first organic layer structure <NUM>.

Then the bendable region N12 of the display panel <NUM> is bent toward the backlight side of the display panel <NUM>, so that the binding region N13 is bent to the backlight side of the display panel <NUM>. Since the adhesive layer <NUM> is arranged on the first surface of the rigid substrate <NUM> in the display region AA and/or the fourth surface of the rigid substrate <NUM> in the binding region N13, by pressing the display panel <NUM>, the rigid substrate <NUM> in the binding region N13 can be adhered to the rigid substrate <NUM> in the display region AA through the adhesive layer <NUM>.

Therefore, after the binding region N13 of the display panel <NUM> shown in <FIG> is bent to the backlight side of the display panel <NUM> through the bendable region N12, and the rigid substrate <NUM> in the binding region N13 is adhered to the rigid substrate <NUM> in the display region AA through the adhesive layer <NUM>, the display panel <NUM> shown in <FIG> can be obtained.

Claim 1:
A display panel (<NUM>), comprising a display region (AA) and a bezel region (NA) surrounding the display region (AA), wherein the bezel region (NA) comprises a first peripheral region (N11), a bendable region (N12), and a binding region (N13), the first peripheral region (N11), the bendable region (N12), and the binding region (N13) are sequentially arranged away from the display region (AA), and the binding region (N13) is bent to a backlight side of the display panel (<NUM>) through the bendable region (N12); and
a rigid substrate (<NUM>), a driving circuit layer (<NUM>) arranged on the rigid substrate (<NUM>), and a first organic layer structure (<NUM>), a conductive layer (<NUM>), and a second organic layer structure (<NUM>) that are sequentially arranged away from the rigid substrate (<NUM>), wherein
the rigid substrate (<NUM>) and the driving circuit layer (<NUM>) are arranged bypassing the bendable region (N12), the first organic layer structure (<NUM>), the conductive layer (<NUM>), and the second organic layer structure (<NUM>) are distributed in at least the first peripheral region (N11), the bendable region (N12), and the binding region (N13), and the first organic layer structure (<NUM>) in the first peripheral region (N11) is located on a side of the driving circuit layer (<NUM>) away from the rigid substrate (<NUM>), wherein the second organic layer structure (<NUM>) comprises at least one organic layer
characterised in that
the first organic layer structure (<NUM>) comprises a plurality of organic layers, and the display panel (<NUM>) further comprises a second inorganic layer structure (<NUM>) arranged between two adjacent organic layers (<NUM>, <NUM>); and
the second inorganic layer structure (<NUM>) comprises at least one inorganic layer, and is distributed in at least the first peripheral region (N11), the bendable region (N12), and the binding region (N13).