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CN112838117A - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN112838117A
CN112838117A CN202110217665.8A CN202110217665A CN112838117A CN 112838117 A CN112838117 A CN 112838117A CN 202110217665 A CN202110217665 A CN 202110217665A CN 112838117 A CN112838117 A CN 112838117A
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CN
China
Prior art keywords
layer
display
area
lead
touch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110217665.8A
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Chinese (zh)
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CN112838117B (en
Inventor
成学佩
陈昀德
孙禄标
刘正德
乔慧娜
邹雪琳
郭强
鲜朦馨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Mianyang BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Mianyang BOE Optoelectronics Technology Co Ltd
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Priority to CN202110217665.8A priority Critical patent/CN112838117B/en
Publication of CN112838117A publication Critical patent/CN112838117A/en
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Publication of CN112838117B publication Critical patent/CN112838117B/en
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40OLEDs integrated with touch screens
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • H10K59/131Interconnections, e.g. wiring lines or terminals

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the application provides a display module and a display device, relates to the technical field of display, and is used for providing a touch display device with stable performance. The display module comprises a display area, a lead area and a bending area for connecting the display area and the lead area; the display module assembly includes: the display panel and the touch screen panel are arranged on the light emitting side of the display panel; the display panel includes a substrate and a first conductive layer disposed on the substrate; a touch screen panel including a touch line; the touch control line extends from the display area to the lead area; the touch control line is arranged on the first part of the lead area and the first conducting layer in the same layer.

Description

Display module and display device
Technical Field
The invention relates to the technical field of display, in particular to a display module and a display device.
Background
An organic light-emitting diode (OLED) display screen has the advantages of being thin, light, wide in viewing angle, capable of actively emitting light, continuously adjustable in light emitting color, low in cost, high in color gamut, high in contrast, fast in response speed, low in energy consumption, low in driving voltage, wide in working temperature range, simple in production process, high in light emitting efficiency, capable of flexibly displaying and the like, and is widely applied to display devices.
With the development of display technology, the birth of Touch Screen Panels (TSPs) makes people's lives more convenient and popular with users.
Therefore, how to provide a touch display device with stable performance and good product quality is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a display module and a display device, which are used for providing a touch display device with stable performance.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a display module comprises a display area, a lead area and a bending area connecting the display area and the lead area; the display module assembly includes: the touch screen panel is arranged on the light emitting side of the display panel; the display panel includes a substrate and a first conductive layer disposed on the substrate; a touch screen panel including a touch line; the touch line extends from the display area to the lead area; the touch line is located on the first portion of the lead area and arranged on the same layer as the first conductive layer.
Optionally, the display panel includes a thin film transistor; the first conducting layer is a source drain electrode layer of the thin film transistor.
Optionally, the display panel includes a thin film transistor, an anode switching layer, and a light emitting unit; the anode of the light-emitting unit is electrically connected with the thin film transistor through the anode switching layer; the first conducting layer is the anode switching layer.
Optionally, the second portion of the touch line located in the bending region and the first portion are disposed on the same layer.
Optionally, the touch line located in the third portion of the display area includes a first insulating layer and a second conductive layer, and the second conductive layer is disposed on a side of the first insulating layer away from the display panel; the third portion is connected to the second portion by a via.
Optionally, the display module further includes a pin area connected to the lead area, the pin area is provided with a plurality of pins, and the pins and the anode adapting layer are disposed on the same layer.
Optionally, the display panel is an organic electroluminescent diode display panel.
Optionally, the display panel further includes a data line for transmitting a data signal to the thin film transistor; the data line extends from the display area to the lead area; the part of the data line, which is positioned in the bending area, is arranged on the same layer as the anode switching layer. Optionally, the substrate is a flexible substrate. In a second aspect, a display device is provided, which includes the display module set in the first aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 2a is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 2b is a schematic structural diagram of another display module provided in the embodiment of the present application;
fig. 3a is a schematic cross-sectional structure view of a display module according to an embodiment of the present disclosure;
fig. 3b is a schematic structural diagram of a touch panel provided in an embodiment of the present application;
fig. 3c is a schematic view illustrating a bending structure of a display module according to an embodiment of the present disclosure;
fig. 3d is a schematic top view of a display module according to an embodiment of the disclosure;
fig. 4 is a schematic cross-sectional structure view of another display module provided in the embodiment of the present application;
fig. 5 is a schematic cross-sectional structure view of another display module according to an embodiment of the present disclosure.
Reference numerals:
01-a display device; 100-a display module; 110-middle frame; 120-a housing; 130-a cover plate; 10-a display panel; 11-a substrate; 12-a light emitting unit; 121-anode; 122-a cathode; 123-a layer of light emitting material; 13-packaging the film; 14-a thin film transistor; 141-gate electrode layer; 141' -a gate line lead; 142-a gate insulating layer; 143-a semiconductor active layer; 144-source drain electrode layer; 144' -a data line lead; 145-a planarization layer; 146-an anode transition layer; 146' -a power supply line lead; 15-a pixel defining layer; a C-pixel circuit; 20-a touch screen panel; 21-a touch line; 21' -touch leads; 22-a touch-control unit; 211-a first insulating layer; 212-a second conductive layer; 30-a backlight module; AA-display area; b1-lead area; b2-bending zone; b3-pin field.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the continuous development of the technology, the full-screen technology is widely used, and in order to realize the full-screen, a part of the display device needs to be bent. One skilled in the art proposes a solution to reduce the width of the lower frame of the display device by using a Bending process. In the bonding, all parts from the bonding area (Bending area) need to be folded to the back of the display panel, so that the purpose of reducing the width of the lower frame is achieved.
In view of this, the present embodiment provides a display device 01, and the display device 01 according to the present embodiment may be, for example: the system comprises intelligent equipment with a network function, such as a tablet computer, a mobile phone, an electronic reader, a remote controller, a Personal Computer (PC), a notebook computer, a Personal Digital Assistant (PDA), vehicle-mounted equipment, a network television, wearable equipment, a television and the like. In the embodiment of the present application, the specific form of the display device 01 is not particularly limited, and for convenience of description, the display device 01 is described as an example of a mobile phone.
As shown in fig. 1, the display device 01 mainly includes a display module 100, a middle frame 110, a housing 120, and a cover plate 130, wherein the display module 100 and the middle frame 110 are disposed in the housing 120.
The middle frame 110 is located between the display module 100 and the housing 120, and the surface of the middle frame 110 away from the display module 100 is used for mounting internal components such as a battery, a Printed Circuit Board (PCB), a Camera (Camera), and an antenna.
The display device 01 further includes a Central Processing Unit (CPU) disposed on the PCB.
The cover plate 130 is located on a side of the display module 100 away from the middle frame 110, and the cover plate 130 may be, for example, Cover Glass (CG), which may have certain toughness.
The display module 100 has a light-emitting side capable of viewing a display image and a back side opposite to the light-emitting side, the back side of the display module 100 is close to the middle frame 110, and the cover plate body 130 is arranged on the light-emitting side of the display module 100.
The display module 100 includes a display panel 10 (DP) and a touch screen panel 20 (TSP) disposed on a light emitting side of the display panel.
In some embodiments of the present application, as shown in fig. 2a, the display panel 10 may be a Liquid Crystal Display (LCD) panel. In this case, the display module 100 further includes a backlight unit (BLU) 30 disposed at a rear surface of the liquid crystal display panel for providing a light source to the liquid crystal display panel.
Alternatively, in other embodiments of the present application, as shown in fig. 2b, the display panel 10 is an Organic Light Emitting Diode (OLED) display panel; a quantum dot light emitting diode (QLED) display panel. In this case, the OLED display panel and the QLED display panel can realize self-luminescence, and thus the backlight module 30 is not required to be disposed in the display module 100.
For convenience of description, the display panel 10 is described as an OLED display panel.
The OLED display panel may have a single data line (SD) structure or a double data line structure. In addition, the OLED display panel may have a top gate structure or a bottom gate structure. In addition, the OLED display panel may have a single gate structure or a dual gate structure. The OLED display panel provided in the embodiment of the present application is only an illustration, and is not limited at all.
As shown in fig. 3a, the display module 100 includes a display area (AA; also referred to as an active display area), a lead area B1, a bending area B2, and a lead area B3, wherein the bending area B2 connects the display area AA and the lead area B1, and the lead area B1 connects the lead area B3.
The display area AA includes sub-pixel units emitting light of a plurality of colors, including at least a first color, a second color, and a third color, where the first color, the second color, and the third color are three primary colors (e.g., red, green, and blue).
As shown in fig. 3a, in the display area AA of the display module 100, the display panel 10 includes a substrate 11, a plurality of light emitting units 12 disposed on the substrate 11, a pixel circuit C, and an encapsulation film 13. Each sub-pixel unit on the display panel 10 is provided with a light emitting unit 12 and a pixel circuit C, that is, the light emitting unit 12 and the pixel circuit C are located in the display area AA.
The substrate 11 may be made of a flexible resin material. In this case, the display panel 10 is a flexible display panel.
The pixel circuit C (also called as a pixel driving circuit) generally includes electronic devices such as a Thin Film Transistor (TFT) and a capacitor (capacitance). For example, the pixel circuit C may be a pixel circuit of a 2T1C structure including two thin film transistors (one switching TFT and one driving TFT) and one capacitor, but the pixel circuit C may also be a pixel circuit including two or more thin film transistors (a plurality of switching TFTs and one driving TFT) and at least one capacitor. In which, regardless of the structure of the pixel circuit C, a driving TFT must be included, and the driving TFT may be electrically connected to the light emitting unit 12 (for example, the driving TFT may be electrically connected to the light emitting unit 12 by being located at a via hole).
As for the structure of the thin film transistor 14, as shown in fig. 3a, the structure includes a gate electrode layer 141, a gate insulating layer 142 (or referred to as an interlayer dielectric layer), a semiconductor active layer 143, a source/drain electrode layer 144 (including a source electrode and a drain electrode which are disposed in the same layer), a planarization layer 145, and an anode transit layer 146, which are sequentially disposed on the substrate 11.
The material of the anode via layer 146 and the material of the source/drain electrode layer 144 may be the same.
The thin film transistor may be an amorphous silicon thin film transistor, a polysilicon thin film transistor, a metal oxide thin film transistor, an organic thin film transistor, or the like, according to the material of the semiconductor active layer 143. In addition, the thin film transistor may be of a staggered type, an inverted staggered type, a coplanar type, an inverted coplanar type, or the like. The embodiment of the application does not limit the materials and the specific structures of all film layers of the thin film transistor, and the thin film transistor in the prior art is suitable for the application.
It is understood that the display panel 10 further includes gate lines for supplying scan signals to the pixel circuits C, data lines for supplying data signals, and power lines for supplying power signals (VDD). The gate line and the gate electrode layer 141 are disposed at the same layer, the data line and the source/drain electrode layer 144 are disposed at the same layer, and the power line and the anode transit layer 146 are disposed at the same layer.
Where a layer is provided, it is understood that both are formed simultaneously using the same patterning process (e.g., including exposure, development, etching, etc.), and the layer is of the same material.
As shown in fig. 3a, the light emitting unit 12 includes an anode 121, a cathode 122, and an organic material functional layer disposed between the anode 121 and the cathode 122, the organic material functional layer including a light emitting material layer 123.
It is understood that in some embodiments, the light emitting material layer 123 included in the sub-pixel unit emitting the first color light emits the first color light, the light emitting material layer 123 included in the sub-pixel unit emitting the second color light emits the second color light, and the light emitting material layer 123 included in the sub-pixel unit emitting the third color light emits the third color light. In this case, the display panel 10 may not need to be provided with a color filter layer.
In other embodiments, each sub-pixel unit includes a layer 123 of light emitting material that emits white light. In this case, the display panel 10 further includes a Color Filter (CF).
In other embodiments, each sub-pixel unit includes a layer 123 of light emitting material that emits blue light. In this case, the display panel 10 further includes a color converted layer (CCF).
As shown in fig. 3a, in some embodiments, in order to improve the electron transport efficiency of holes, the organic material functional layer may further include a Hole Transport Layer (HTL) disposed between the anode 121 and the light emitting material layer 123, and an Electron Transport Layer (ETL) disposed between the cathode 122 and the light emitting material layer 123.
As shown in fig. 3a, in some embodiments, in order to improve efficiency of injecting electrons and holes into the light emitting material layer, the organic material functional layer may further include a Hole Injection Layer (HIL) disposed between the anode 121 and the HTL, and an Electron Injection Layer (EIL) disposed between the cathode 122 and the ETL.
In addition, in order to avoid crosstalk of the primary light emitted from the adjacent sub-pixel units, as shown in fig. 3a, the display panel 10 further includes a pixel defining layer 15, and the pixel defining layer 15 is disposed between the adjacent light emitting material layers 123.
The encapsulation film 13 is disposed on the side of the light emitting unit 12 away from the substrate 11.
On the basis, as shown in fig. 3a, the display module 100 further includes a touch panel 20 disposed on the surface of the encapsulation film 13, and the touch panel 20 includes a plurality of touch units (not shown) and touch lines 21.
In the embodiment of the present application, a display module using an ON-cell Touch (ON-screen Touch) technology is taken as an example for illustration, but not limited thereto.
In addition, the touch screen panel 20 may be a self-capacitive touch screen panel or a mutual capacitive touch screen panel, which is not limited in this embodiment of the application.
As shown in fig. 3B, the touch line 21 is connected to the touch unit 22, and extends from the display area AA to the lead area B1 for transmitting a touch signal.
The extending track of the touch line 21 is not limited, and is only illustrated in fig. 3 b.
The portion of the touch line 21 located in the display area AA (referred to as a third portion) includes a first insulating layer 211 and a second conductive layer 212, and the second conductive layer 212 is disposed on a side of the first insulating layer 211 away from the encapsulation film 13.
In order to improve the ability of the touch panel 20 to block water and oxygen, in some embodiments, the material of the first insulating layer 211 is an inorganic material. Illustratively, the material of the first insulating layer 211 is SiNx(silicon nitride).
As shown in fig. 3c, the display panel 10 is bent at the bending region B2, such that the region outside the bending region B2 is bent to the back side of the display panel 10 (i.e., the side of the display panel 10 not provided with the touch panel 20).
Regarding the structure of the display module 100 in the bending region B2, in some embodiments, the bending region B2 of the display module 100 includes the gate line lead 141 ', the gate insulating layer 142 and the power line lead 146' as shown in fig. 3 a.
The gate line lead 141' is disposed on the substrate 11, connected to the gate line positioned in the display region AA, and disposed at the same layer as the gate electrode layer 141.
The gate insulating layer 142 is disposed on a surface of the gate line lead 141' away from the substrate 11.
The power line lead 146 'is connected to the power line in the display area AA, and the power line lead 146' is disposed in the same layer as the anode adaptor layer 146.
In some embodiments, the data line lead 144 'electrically connected to the data line in the display area AA is connected to the power line lead 146' layer in the bending area B2. That is, the portion of the data line lead 144 'located in the bent region B2 is disposed in the same layer as the power line lead 146', and is disposed in parallel with each other in a plan view. Therefore, as shown in fig. 3a, the data line lead 144' is not shown at the inflection region B2.
Thus, film layers such as the data line lead 144 ' and an insulating layer between the data line lead 144 ' and the power line lead 146 ' are not required to be arranged at the bending region B2, the number of the film layers at the bending region B2 can be reduced, and the problem that the bending region B2 is too thick to cause easy breakage in the bending process can be avoided.
For example, in the embodiment of the present application, the second portion of the touch line 21 located in the bending region B2 and the first portion located in the lead region B1 are referred to as touch leads 21'. Similarly, in order to reduce the thickness of the bending region B2, the portion of the touch lead 21 'located in the bending region B2 (the second portion of the touch line 21) and the power line lead 146' are disposed in the same layer, and are disposed in parallel in a top view. Therefore, as shown in fig. 3a, the touch lead 21' is not shown at the bending region B2.
Regarding the structure of the display module 100 in the lead region B1, in some embodiments, the lead region B1 of the display module 100 includes a gate line lead 141 ', a gate insulating layer 142, a data line lead 144', a planarization layer 145, a power line lead 146 ', and a touch lead 21' which are sequentially stacked.
The portion of the touch lead 21' located in the lead region B1 (the first portion of the touch line 21) includes a first insulating layer 211 and a second conductive layer 212, and the second conductive layer 212 is disposed on a side of the first insulating layer 211 away from the package film 13.
In some embodiments, the material of the first insulating layer 211 is an inorganic material. Illustratively, the material of the first insulating layer 211 is SiNx(silicon nitride).
Regarding the structure of the display module 100 in the pin area B3, in some embodiments, the pin area B3 of the display module 100 includes a plurality of pins (pins) as shown in fig. 3 d. The pins are electrically connected to the PCB in the display module 100 through a Flexible Printed Circuit (FPC) to implement signal transmission.
In some embodiments, the leads are disposed on the same layer as the anode via layer 146.
However, as shown in fig. 3a, the touch screen panel 20 is used as a film layer farther from the center of the display module 100, and the bending radius is larger during the bending process. The touch lead 21' is located in the lead region B1, and an inorganic film is disposed under the second conductive layer 212, and the height difference between the lead region B1 and the bending region B2 is large. This causes the inorganic film to easily wrinkle (wrinkle) and peel off (peeling) at the position where the portion of the touch lead 21 'located in the lead region B1 overlaps with the portion located in the bending region B2 during the bending process of the display panel 100, which causes the second conductive layer 212 to be broken (i.e., the touch lead 21' is broken), thereby affecting the quality of the product.
Based on this, as shown in fig. 4, an embodiment of the present application further provides a display module 100, which includes a display panel 10 and a touch panel 20.
The structures of the display panel 10 and the touch panel 20 may refer to the related description with respect to fig. 3a, except that the structure of the touch line 21 in the touch panel 20 is different.
The touch line 21 is connected to the touch unit, extends from the display area AA to the lead area B1, and is used for transmitting a touch signal.
The portion of the touch line 21 located in the display area AA (referred to as a third portion) includes a first insulating layer 211 and a second conductive layer 212, and the second conductive layer 212 is disposed on a side of the first insulating layer 211 away from the encapsulation film 13.
In the present embodiment, the portion of the touch wire 21 located in the bending region B2 and the portion located in the lead region B1 are referred to as a touch lead 21 ', and in some embodiments, the portion of the touch lead 21 ' located in the bending region B2 (the second portion of the touch wire 21) is disposed in the same layer as the power supply lead 146 ', and is disposed in parallel in the top view. Therefore, as shown in fig. 4, the touch lead 21' is not shown at the bending region B2. That is, the portion of the touch lead 21 'located in the bending region B2 no longer includes the first insulating layer 211 and the second conductive layer 212, but is made of the same material as the power line lead 146'.
The portion of the touch lead 21 'located in the lead region B1 (the first portion of the touch line 21) is connected to the first conductive layer of the display panel 10, i.e., the portion of the touch lead 21' located in the lead region B1 is disposed in the same layer as the first conductive layer.
Thus, the portion of the touch lead 21' located in the lead region B1 is formed by the first conductive layer, and does not include the first insulating layer 211 and the second conductive layer 212. That is, the portion of the touch lead 21' located in the lead region B1 is no longer provided with an inorganic film. Therefore, in the bending process of the display panel 100, the portion of the touch lead 21 'located in the lead region B1 does not have the problem of breakage of the touch lead 21' due to wrinkling or falling off of the inorganic film, so that the bending performance of touch is enhanced, and the product quality is ensured.
In the embodiment of the present application, the position of the first conductive layer is not limited, and the first conductive layer may be a layer where any conductive component in the display panel 10 is located.
Taking the display panel 10 shown in fig. 3a as an example, in some embodiments, the first conductive layer is the gate electrode layer 141.
In other embodiments, the first conductive layer is the source/drain electrode layer 144.
In other embodiments, the first conductive layer is the layer on which the anode 121 is located.
In other embodiments, the first conductive layer is the cathode 122.
In other embodiments, as shown in FIG. 4, the first conductive layer is the anode via layer 146.
As can be seen from the above description, the power line lead 146 'is disposed in the same layer as the anode via layer 146, and therefore, the portion of the touch lead 21' located in the lead region B1 is disposed in the same layer as the power line lead 146 'and is juxtaposed with the same in a top view, and in fig. 4, the touch lead 21' is not shown in the portion of the lead region B1. That is, the portion of the touch lead 21 'located in the lead region B1 no longer includes the first insulating layer 211 and the second conductive layer 212, but is made of the same material as the power line lead 146'.
In some embodiments, the leads in the lead region B3 are disposed on the same layer as the anode via layer 146.
Therefore, the portion of the touch lead 21 'located in the lead region B1 and the anode adapting layer 146 are disposed on the same layer, so that the touch lead 21' can be directly connected to the lead without via adapting connection, thereby avoiding virtual connection and simplifying the structure.
In some embodiments, the second portion of the touch line 21 located in the bending region B2 is disposed at the same layer as the first portion of the lead region B1.
For example, as shown in fig. 4, the second portion of the touch line 21 located in the bending region B2 and the first portion of the lead region B1 are both disposed at the layer of the anode transition layer 146.
The second part of the touch control line 21 in the bending region B2 and the first part of the lead region B1 are arranged on the same layer, so that the touch control line and the lead region B1 can be directly connected, for example, the touch control line and the lead region B2 are integrally formed, via hole transfer is not needed, virtual connection can be avoided, the structure is simplified, and the process difficulty is reduced.
In some embodiments, as shown in fig. 5, the anode 121 of the light emitting unit 12 in the display panel 10 is directly electrically connected to the tft 14 without providing the anode transition layer 146.
In this case, optionally, the portion of the touch lead 21' located in the lead region B1 is disposed in the same layer as the source/drain electrode layer 144 of the tft 14. That is, the first conductive layer is the layer where the source/drain electrode layer 144 is located.
As is apparent from the above description, the data line lead 144 'is disposed at the same layer as the source-drain electrode layer 144, and thus, the portion of the touch lead 21' located in the lead region B1 is disposed at the same layer as the data line lead 144 'and is juxtaposed as viewed in plan, and in fig. 5, the touch lead 21' is not shown at the portion of the lead region B1. That is, the portion of the touch lead 21 'located in the lead region B1 no longer includes the first insulating layer 211 and the second conductive layer 212, but is made of the same material as the data line lead 144'.
Optionally, the portion of the touch lead 21' located in the bending region B2 is disposed in the same layer as the source/drain electrode layer 144 of the tft 14.
Optionally, the leads and the source/drain electrode layer 144 are disposed in the same layer.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A display module is characterized by comprising a display area, a lead area and a bending area for connecting the display area and the lead area;
the display module assembly includes: the touch screen panel is arranged on the light emitting side of the display panel;
the display panel includes a substrate and a first conductive layer disposed on the substrate;
a touch screen panel including a touch line; the touch line extends from the display area to the lead area; the touch line is located on the first portion of the lead area and arranged on the same layer as the first conductive layer.
2. The display module of claim 1, wherein the display panel comprises a thin film transistor;
the first conducting layer is a source drain electrode layer of the thin film transistor.
3. The display module of claim 1, wherein the display panel comprises a thin film transistor, an anode transition layer and a light emitting unit;
the anode of the light-emitting unit is electrically connected with the thin film transistor through the anode switching layer;
the first conducting layer is the anode switching layer.
4. The display module according to any one of claims 1 to 3, wherein the second portion of the touch line in the bending region is disposed on the same layer as the first portion.
5. The display module according to any one of claims 1 to 3, wherein the touch control line at the third portion of the display area comprises a first insulating layer and a second conductive layer, and the second conductive layer is disposed on a side of the first insulating layer away from the display panel;
the second part and the third part of the touch line located in the bending area are connected through a through hole.
6. The display module according to claim 3, further comprising a lead area connected to the lead area, wherein the lead area is provided with a plurality of leads, and the leads are disposed on the same layer as the anode via layer.
7. The display module of claim 1, wherein the display panel is an organic electroluminescent diode display panel.
8. The display module of claim 3, wherein the display panel further comprises a data line for transmitting a data signal to the thin film transistor;
the data line extends from the display area to the lead area;
the part of the data line, which is positioned in the bending area, is arranged on the same layer as the anode switching layer.
9. The display module of claim 1, wherein the substrate is a flexible substrate.
10. A display device comprising the display module according to any one of claims 1 to 9.
CN202110217665.8A 2021-02-26 2021-02-26 Display module and display device Active CN112838117B (en)

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Citations (6)

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CN107992228A (en) * 2017-11-30 2018-05-04 云谷(固安)科技有限公司 A kind of touch-control display panel and touch control display apparatus
CN109062442A (en) * 2018-08-16 2018-12-21 武汉天马微电子有限公司 Organic light emitting display panel and display device
CN110164879A (en) * 2019-07-03 2019-08-23 京东方科技集团股份有限公司 Array substrate, display device
CN110379310A (en) * 2019-07-22 2019-10-25 京东方科技集团股份有限公司 A kind of Flexible Displays mould group and preparation method thereof, flexible display apparatus
CN210955021U (en) * 2020-02-28 2020-07-07 昆山国显光电有限公司 Display panel and electronic device
WO2021017477A1 (en) * 2019-07-30 2021-02-04 昆山国显光电有限公司 Display panel and display device

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Publication number Priority date Publication date Assignee Title
CN107992228A (en) * 2017-11-30 2018-05-04 云谷(固安)科技有限公司 A kind of touch-control display panel and touch control display apparatus
CN109062442A (en) * 2018-08-16 2018-12-21 武汉天马微电子有限公司 Organic light emitting display panel and display device
CN110164879A (en) * 2019-07-03 2019-08-23 京东方科技集团股份有限公司 Array substrate, display device
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