CN114509886A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN114509886A
CN114509886A CN202210117828.XA CN202210117828A CN114509886A CN 114509886 A CN114509886 A CN 114509886A CN 202210117828 A CN202210117828 A CN 202210117828A CN 114509886 A CN114509886 A CN 114509886A
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China
Prior art keywords
touch
data
pins
display area
pin
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Granted
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CN202210117828.XA
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Chinese (zh)
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CN114509886B (en
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不公告发明人
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Guangzhou China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Guangzhou China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN202210117828.XA priority Critical patent/CN114509886B/en
Publication of CN114509886A publication Critical patent/CN114509886A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Position Input By Displaying (AREA)

Abstract

The embodiment of the application provides a display panel and display device, and display panel includes the non-display area in display area, still includes: the pixel layer comprises a plurality of pixel electrodes, and the pixel electrodes are arranged in the display area; the touch layer is arranged on one side of the pixel layer and comprises a plurality of touch electrodes; the driving chip is arranged in the non-display area and comprises a plurality of touch control pins and a plurality of data pins; the data routing wires are respectively connected with the pixel electrodes and the data pins; and the plurality of touch control wires are respectively and correspondingly connected with the plurality of touch control electrodes and the plurality of touch control pins, and the projections of all the touch control wires and all the data wires in the non-display area are not crossed. The touch-control wiring and the data wiring are set to be not crossed in the non-display area, for example, the connection between the touch-control wiring and the touch-control pins can be realized through a winding structure, via holes do not need to be formed or the number of the via holes can be reduced, and the problem that the connection reliability between the touch-control wiring and a driving chip is reduced due to via hole crossing is solved.

Description

Display panel and display device
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
With the development of display industry technologies, touch technologies are applied to display panels more and more widely. The integration of the touch panel and the liquid crystal panel includes an "In-cell" method and an "On-cell" method, In which the In-cell means that a touch panel function is embedded In a liquid crystal pixel, and the On-cell means that the touch panel function is embedded between a color filter substrate and a polarizing plate.
In the In-cell method, due to the limitation of the driving chip, the driving chip and the touch-control wires cannot be connected In a one-to-one correspondence manner, and In the prior art, a layer-changing transverse cross wire is realized by forming a via hole In a fan-out region, so that the driving chip and the touch-control wires are correspondingly connected. However, the via holes of the fan-out area are easily corroded, which results in the decrease of the connection reliability between the driving chip and the touch traces.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which aim to solve the problem that the connection reliability of a driving chip and a touch wire is reduced because the via hole of the existing fan-out area is easily corroded.
In a first aspect, an embodiment of the present application provides a display panel, where the display panel includes a display area and a non-display area surrounding the display area, and the display panel further includes:
the pixel layer comprises a plurality of pixel electrodes, and the pixel electrodes are arranged in the display area;
the touch layer is arranged on one side of the pixel layer and comprises a plurality of touch electrodes;
the driving chip is arranged in the non-display area and comprises a plurality of touch control pins and a plurality of data pins;
the plurality of data wires are respectively connected with the plurality of pixel electrodes and the plurality of data pins;
the touch control device comprises a plurality of touch control wires, wherein the touch control wires are respectively and correspondingly connected with the touch control electrodes and the touch control pins, and the projections of all the touch control wires and all the data wires in the non-display area are not crossed.
Optionally, the plurality of data pins include a first data pin and a second data pin which are adjacent to each other;
the plurality of touch pins comprise a first touch pin and a second touch pin which are adjacent, and the first touch pin is adjacent to the second touch pin;
the plurality of touch-control wires comprise a first touch-control wire, and the first touch-control wire is arranged between the first data pin and the second data pin in the non-display area and is connected with the first touch-control pin.
Optionally, the first touch pin includes a first side facing the display area and a second side opposite to the first side;
the first touch wire bypasses the second data pin and is connected with the second side of the first touch pin.
Optionally, the second touch pin includes a first side facing the display area and a second side opposite to the first side;
the plurality of touch-control wires further comprise a second touch-control wire adjacent to the first touch-control wire, and the second touch-control wire is connected with the first side of the second touch-control pin in the non-display area.
Optionally, the length of the second touch trace in the non-display area is smaller than the length of the first touch trace in the non-display area.
Optionally, the first data pins and the second data pins are arranged in two adjacent rows, the first touch pins and the second touch pins are arranged in two adjacent rows, and the first data pins and the first touch pins are arranged in the same row.
Optionally, the first data pin includes a first side facing the display area and a second side opposite to the first side;
the second data pin comprises a first side facing the display area and a second side opposite to the first side;
the plurality of data wires comprise a first data wire and a second data wire which are adjacent, the first data wire is connected with the first side of the first data pin, and the second data wire is connected with the first side of the second data pin.
Optionally, the plurality of data pins include a first data pin and a second data pin which are adjacent to each other;
the plurality of touch pins comprise a first touch pin and a second touch pin which are adjacent, and the first touch pin is adjacent to the second touch pin;
the plurality of data wires comprise first data wires, and the first data wires are arranged between the first touch pins and the second touch pins in the non-display area and are connected with the first data pins.
In a second aspect, an embodiment of the present application further provides a display panel, where the display panel includes a display area and a non-display area surrounding the display area, and the display panel further includes:
the pixel layer comprises a plurality of pixel electrodes, and the pixel electrodes are arranged in the display area;
the touch layer is arranged on one side of the pixel layer and comprises a plurality of touch electrodes;
the driving chip is arranged in the non-display area and comprises a plurality of touch control pins and a plurality of data pins;
the plurality of data wires are respectively connected with the plurality of pixel electrodes and the plurality of data pins;
the touch control device comprises a plurality of touch control wires, wherein the touch control wires are respectively and correspondingly connected with a plurality of touch control electrodes and a plurality of touch control pins, and at least one touch control wire is connected with the touch control pins by bypassing the data wires and the data pins in the non-display area so as to enable the touch control wires and the data wires not to be crossed.
In a third aspect, an embodiment of the present application further provides a display device, including:
a display panel as described in any one of the above;
the shell is connected with the display panel to bear the display panel.
In the display panel and the display device of the embodiment of the application, the touch-control wiring and the data wiring are set to be not crossed in the non-display area, for example, the connection between the touch-control wiring and the touch-control pins can be realized through a winding structure, via holes do not need to be formed or the number of the via holes can be reduced, and the problem that the connection reliability between the touch-control wiring and the driving chip is reduced due to via hole crossing is avoided. In addition, due to the fact that the arrangement of the through holes of the non-display area is reduced or eliminated, the space of the non-display area of the display panel can be saved, and convenience is brought to the realization of the narrow frame.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 2 is a schematic view of a first structure of a display panel in the display device shown in fig. 1.
Fig. 3 is a schematic cross-sectional view of a portion of the display panel shown in fig. 2.
Fig. 4 is a second structural diagram of the display panel in the display device shown in fig. 1.
Fig. 5 is a schematic diagram of a third structure of the display panel in the display device shown in fig. 1.
Fig. 6 is a schematic diagram of a fourth structure of the display panel in the display device shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
In order to solve the problem that the connection reliability of the driving chip and the touch routing is reduced due to the fact that the via hole of the existing fan-out area is easily corroded, embodiments of the present application provide a display panel and a display device, which will be described below with reference to the accompanying drawings.
For example, please refer to fig. 1, and fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. The embodiment of the application provides a display device 1, and the display device 1 may include a display panel 10 and a housing 20, where the housing 20 is connected with the display panel 10 to carry the display panel 10. For example, the display device 1 may be a mobile electronic device such as a mobile phone, a tablet, a computer, and the like, and the display device 1 may also be a device having display and touch functions such as a computer device, a video playing device, a television, a vehicle-mounted computer, and the like.
The display panel 10 is a component of the display device 1 for displaying, and a user can perform a touch operation on the display panel 10 to achieve different playing effects. With the development of touch technology, the integration of a touch panel and a liquid crystal panel includes an "In-cell" method and an "On-cell" method, In which an In-cell refers to embedding a touch panel function into a liquid crystal pixel, and an On-cell refers to embedding a touch panel function between a color filter substrate and a polarizing plate. The present application takes a display panel 10 prepared by an In-cell method as an example for explanation. Due to the limitation of the setting positions of the driving chip and the touch-control wires, the driving chip and the touch-control wires cannot be connected in a one-to-one correspondence manner. In the prior art, a layer-changing transverse overline is realized by forming a via hole in a fan-out area so as to realize corresponding connection between a driving chip and a touch wire. However, the via holes of the fan-out area are easily corroded, which results in the decrease of the connection reliability between the driving chip and the touch traces.
It should be noted that the fan-out area may be understood as a region where the traces of the display area converge to the non-display area to present a fan-shaped wire arrangement, and therefore, the fan-out area may correspond to a portion of the display area and a portion of the non-display area.
In order to solve the above problem, the embodiment of the present application improves the wiring manner of the display panel 10.
For example, please refer to fig. 2 in combination with fig. 1, and fig. 2 is a schematic view illustrating a first structure of a display panel in the display device shown in fig. 1. The display panel 10 may include a display area a-a and a non-display area B-B disposed around the display area a-a, and it is understood that the non-display area B-B may be used for wiring, and meanwhile, the non-display area B-B may be used for connection with the housing 20, and a portion where the non-display area B-B is connected with the housing 20 may be referred to as a bezel area of the display device 1.
For example, please refer to fig. 3 and fig. 4 in combination with fig. 1 and fig. 2, in which fig. 3 is a schematic cross-sectional view of a portion of the display panel shown in fig. 2, and fig. 4 is a schematic second structural view of the display panel in the display device shown in fig. 1. The display panel 10 may further include a pixel layer 11, a touch layer 12, a driving chip 13, a plurality of data traces 14, and a plurality of touch traces 15.
The pixel layer 11 may include a plurality of pixel electrodes 110, and the plurality of pixel electrodes 110 are disposed in the display area a-a. For example, the plurality of pixel electrodes 110 may be arranged in an array of M rows and N columns in the display area a-a. The touch layer 12 is disposed on one side of the pixel layer 11, the touch layer 12 includes a plurality of touch electrodes 120, and each touch electrode 120 is disposed corresponding to a plurality of pixel electrodes 110. It should be noted that the number of the touch electrodes 120 is less than the number of the pixel electrodes 110, and the area of each touch electrode 120 is larger than the area of each pixel electrode 110. For example, the touch electrodes 120 may be arranged in an array of K rows and L columns, and one touch electrode 120 may be disposed corresponding to the pixel electrodes 110. For example, each touch electrode 120 may be disposed corresponding to 50 rows and 50 columns of the pixel electrodes 110.
Note that the touch electrode 120 may also be referred to as a common electrode, and a capacitance or a charge amount stored between the pixel electrode 110 and the common electrode is used for transferring to a driving TFT (Thin Film Transistor), so that display of the display device 1 is controlled. The capacitance or the charge amount formed between the touch electrode 120 and the finger of the user is used to transmit the position information touched by the finger to the driving chip 13, so as to control the display device 1 to display the preset image information according to the position information touched.
Illustratively, the driving chip 13 is disposed in the non-display area B-B of the display panel 10, and the driving chip 13 may include a plurality of touch pins 131 and a plurality of data pins 130. It should be noted that the driving chip 13 not only can receive the position information of the finger touching the touch electrode 120, but also the driving chip 13 can process the position information of the touched touch electrode 120 and transmit the control information to the pixel electrode 110, so that the area corresponding to the touched touch electrode 120 displays the preset image information.
Illustratively, the plurality of data traces 14 are disposed on a side of the pixel layer 11 away from the touch layer 12, and the plurality of data traces 14 are respectively connected to the plurality of pixel electrodes 110 and the plurality of data pins 130. It should be noted that each data trace 14 may be connected to a row of pixel electrodes 110, and then a row of pixel electrodes 110 is correspondingly connected to one data pin 130, and a plurality of rows of pixel electrodes 110 are correspondingly connected to a plurality of data pins 130, respectively.
The plurality of touch traces 15 and the plurality of data traces 14 are disposed at the same layer and at intervals in the display area a-a. For example, in the display area a-a, each touch trace 15 may be disposed between two adjacent data traces 14. The touch traces 15 are respectively connected to the touch electrodes 120 and the touch pins 131. It should be noted that each touch trace 15 is correspondingly connected to one touch electrode 120 and one touch pin 131, so that accurate sensing of a touched position of the touch electrode 120 can be facilitated. The projections of all the touch traces 15 and all the data traces 14 in the non-display area B-B do not intersect. For example, the touch trace 15 and the touch pin 131 can be connected by disposing a routing structure. By setting the touch trace 15 and the data trace 14 in the non-display area B-B to be not crossed, for example, the connection between the touch trace 15 and the touch pins 131 can be realized through a winding structure, and via holes do not need to be formed or the number of via holes can be reduced, thereby avoiding the problem of the reduction of the connection reliability between the touch trace and the driving chip caused by via hole crossing. In addition, the arrangement of the through holes in the non-display area B-B is reduced or eliminated, so that the space of the non-display area B-B of the display panel 10 can be saved, and convenience is provided for realizing a narrow frame. In addition, the length of the winding structure of the touch trace 15 in the non-display area B-B is much shorter than the length of the touch trace 15 in the display area a-a, so that the voltage drop problem of the touch trace 15 is not substantially increased by the winding structure, thereby improving the reliability of the connection between the touch trace 15 and the driving chip 13.
It should be noted that the display panel 10 is manufactured by disposing different materials, such as a metal layer and an insulating layer, layer by layer in the manufacturing process. For the bottom gate type thin film transistor, a first metal layer is usually prepared as a gate of the thin film transistor, and a second metal layer is arranged as a source and a drain of the thin film transistor after an insulating layer is laid. Then, an insulating layer and two conductive layers are disposed as the touch layer 12 and the pixel layer 11, respectively. It is understood that the above layer structure is usually disposed in the display area a-a, and the non-display area B-B is fabricated together with the display area a-a, so that the non-display area B-B is also usually a laminated structure, and includes two metal layers, and the two metal layers can be selected for the data pin 130 and the touch pin 131 of the driving chip 13. For example, all the data pins 130 and all the touch pins 131 may be arranged in the same layer, that is, the data pins 130 and the touch pins 131 are made by selecting a first metal layer or selecting a second metal layer. Of course, all the data pins 130 and all the touch pins 131 may be arranged in a layered manner, that is, one of the numerical control pins 130 and the touch pins 131 is made of a first metal layer, and the other of the numerical control pins 130 and the touch pins 131 is made of a second metal layer.
For the data pins 130 and the touch pins 131 arranged in the same layer or in different layers, the embodiment of the application can implement a scheme of avoiding cross-wiring through a winding structure. The following will be separately explained.
In the first case, that is, the case shown in fig. 4, the plurality of touch pins 131 and the plurality of data pins 130 are disposed on the same layer. For example, the plurality of data pins 130 may be divided into a plurality of data pin groups 132, and the plurality of touch pins 131 may be divided into a plurality of touch pin groups 133. Each of the touch pad sets 133 is disposed between two adjacent data pad sets 132. Each data pin group 132 may include adjacent first and second data pins 130a and 130 b. The first data pins 130a and the second data pins 130b are disposed in two adjacent rows, and the projection of the second data pins 130b on the first data pins 130a is not overlapped with the first data pins 130 a. Each of the touch pin sets 133 may include a first touch pin 131a and a second touch pin 131 b. The first touch pins 131a are disposed adjacent to and in the same row as the first data pins 130a, the second touch pins 131b are disposed adjacent to and in the same row as the second data pins 130b, and the projection of the second touch pins 131b on the first touch pins 131a is not overlapped with the first touch pins 131 a. It can be understood that the first data pins 130a and the first touch pins 131a are disposed adjacent to each other at intervals in the same row, the second data pins 130b and the second touch pins 131b are disposed adjacent to each other at intervals in another row, and the second data pins 130b and the second touch pins 131b are disposed in a null or staggered manner.
The plurality of touch traces 15 may include a first touch trace 15a, and the first touch trace 15a is disposed between two adjacent data traces 14 in the display area a-a. The first touch trace 15a is disposed between the first data pin 130a and the second data pin 130B in the non-display region B-B, disposed around the second data pin 130B, and connected to the first touch pin 131 a. It can be understood that the first touch trace 15a is connected to the first touch pin 131a by bypassing the first data pin 130a and the second data pin 130b, rather than by forming via holes and connecting via lines in a transverse direction, which can reduce the problem of unreliable connection caused by the connection between the touch trace and the data trace due to corrosion at the via holes.
For example, the first touch trace 15a may include a first bending section 151, a second bending section 152 and a third bending section 153 connected in sequence. The first bending section 151 is disposed at least partially in the non-display region B-B, and the second bending section 152 is disposed at one side of the first data pin 130 a. The third bending section 153 is disposed around the second data pin 130b, and one end of the third bending section 153 away from the second bending section 152 is connected to the first touch pin 131 a. The sum of the lengths of the second bending section 152 and the third bending section 153 is less than the length of the first touch trace 15a in the display area a-a. It can be understood that, since the area of the display area a-a of the display panel 10 is much larger than the area of the non-display area B-B, the length of the first touch trace 15a located in the display area a-a is much larger than the length of the first touch trace 15a located in the non-display area B-B. Therefore, although the first touch trace 15a is provided with the routing structure in the non-display area B-B, the length of the first touch trace 15a in the non-display area B-B is increased, because the length of the routing structure is much shorter than the length of the first touch trace 15a in the display area a-a, the routing structure does not cause an excessive voltage drop. Therefore, the arrangement of the winding structure can increase the reliability of the connection between the touch trace 15 and the touch pin in the non-display area B-B.
For example, the first touch pin 131a may include a first side facing the display area a-a and a second side opposite to the first side, and the first touch trace 15a is connected to the second side of the first touch pin 131a by bypassing the second data pin 130 b.
The connection between the first touch pin 131a and the first touch trace 15a and the connection between the second touch pin 131b and the other touch trace 15 in each touch pin group 133 are different. For example, the plurality of touch traces 15 may further include a second touch trace 15b, and the second touch trace 15b is adjacent to and spaced apart from the first touch trace 15 a. The second touch pins 131B may include a first side facing the display area a-a and a second side opposite to the first side, and the second touch traces 15B are connected to the first side of the second touch pins 131B in the non-display area B-B. It is understood that the connection between the second touch trace 15b and the second touch pin 131b does not require a routing structure, which is determined by the position relationship between the touch pin 131 and the data pin 130. Therefore, the length of the second touch trace 15B in the non-display area B-B is smaller than the length of the first touch trace 15a in the non-display area B-B.
Illustratively, the first data pin 130a includes a first side facing the display area a-a and a second side opposite to the first side. The second data pin 130b also includes a first side facing the display area a-a and a second side opposite to the first side. The plurality of data traces 14 includes a first data trace 14a and a second data trace 14b that are adjacent to each other, the first data trace 14a is connected to a first side of the first data pin 130a, and the second data trace 14b is connected to a first side of the second data pin 130 b. It should be noted that, in this case, only the first touch trace 15a needs to be routed, and compared with a manner in which the first touch trace 15a, the second touch trace 15b, the first data trace 14a, and the second data trace 14b are all routed, the routing of the first touch trace 15a in the embodiment of the present application is simpler and more convenient.
It should be noted that the touch traces 15 and the data traces 14 in the non-display area B-B are not arranged to intersect with each other in the embodiment of the present application, and the method for routing the first touch traces 15a is not limited to the above-mentioned method.
For example, please refer to fig. 5 in combination with fig. 1 to 4, and fig. 5 is a schematic diagram of a third structure of the display panel in the display device shown in fig. 1. The first touch trace 15a may be replaced by a first data trace 14a, that is, the first data trace 14a is disposed between the first touch pin 131a and the second touch pin 131B in the non-display area B-B and connected to the first data pin 130 a. It can be understood that in this manner, that is, the first data trace 14a is routed, and the first data trace 14a is connected to the second side of the first data pin 130a by bypassing the second touch pin 131 b. The first touch trace 15a is connected to the first side of the first touch pin 131a, the second touch trace 15b is connected to the first side of the second touch pin 131b, and the second data trace 14b is connected to the first side of the second data pin 130 b. Similarly, the touch traces 15 and the data traces 14 are set to be not crossed in the non-display area B-B, for example, the connection between the touch traces 15 and the touch pins 131 can be realized through a winding structure, via holes do not need to be formed or the number of via holes can be reduced, and the problem of reduced connection reliability between the touch traces and the driving chip caused by via hole crossing is avoided. In addition, the arrangement of the through holes in the non-display area B-B is reduced or eliminated, so that the space of the non-display area B-B of the display panel 10 can be saved, and convenience is provided for realizing a narrow frame.
In a second situation, please refer to fig. 6 in combination with fig. 1 to 5, and fig. 6 is a fourth structural diagram of the display panel in the display device shown in fig. 1. The plurality of touch pins 131 and the plurality of data pins 130 are arranged in a hierarchical manner. For example, the touch pins 131 can be fabricated using a first metal layer, and the data pins 130 can be fabricated using a second metal layer. In this case, the plurality of touch pins 131 and the plurality of data pins 130 may be divided into a plurality of touch pin groups 133 and a plurality of data pin groups 132, respectively. The arrangement of each touch pin group 133 and each data pin group 132 is the same as that in the first case, except that the touch pins 131 and the data pins 130 are in different layers. Therefore, reference may be made to the description of the first case above, which is not repeated here.
Since the touch trace 15 and the touch pin 131 are disposed on different layers, the first via hole 16a may be formed in the layer where the first data pin 130a is located, so that the first touch trace 15a penetrates through the first via hole 16a and bypasses the projection of the second data pin 130b on the first touch pin 131a to be connected with the first touch pin 131 a. It should be noted that although the first via hole 16a is provided, in the embodiment of the present application, the connection between the touch trace 15 and the touch pin 131 is still realized by a wire winding manner, so that the problem of unreliable connection caused by via hole crossing can be reduced.
Illustratively, the second touch trace 15b and the first touch trace 15a are disposed adjacent to each other and spaced apart from each other in the display area a-a. The layer where the first data pin 130a is located is further provided with a second via hole 16b, so that the second touch trace 15b passes through the second via hole 16b and is connected with the second touch pin 131 b.
In this embodiment, in the first case, the first data trace 14a may also be used to replace the first touch trace 15a to implement the routing structure, which is not described herein again.
For example, the embodiment of the present application further provides a display panel 10, and the structural composition of the display panel 10 may refer to fig. 1 to 6 and the above description, which are not repeated herein. The embodiment of the present application is different from the aforementioned fig. 1 to 6 in that at least one touch trace 15 bypasses the data trace 14 and the data pin 130 and is connected to the touch pin 131 in the non-display area B-B, so that the touch trace 15 and the data trace 14 are not crossed. That is, one of the touch traces 15 may have a winding structure, and the other touch traces 15 may be disposed across lines. Two, three or all of the touch traces 15 may have a winding structure, and are selected as needed, and the scheme of reducing the arrangement of the via crossing line structure is not limited here, so long as the problem of unreliable connection due to corrosion of the via hole can be reduced.
In the display panel 10 and the display device 1 provided in the embodiment of the application, the touch traces 15 and the data traces 14 are set to be not crossed in the non-display area B-B, for example, the connection between the touch traces 15 and the touch pins 131 can be realized through a winding structure, via holes do not need to be formed or the number of the via holes can be reduced, and the problem of reduction in the connection reliability between the touch traces and the driving chip caused by via hole crossing is avoided. In addition, the arrangement of the through holes in the non-display area B-B is reduced or eliminated, so that the space of the non-display area B-B of the display panel 10 can be saved, and convenience is provided for realizing a narrow frame.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
The display panel and the display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A display panel characterized by comprising a display area and a non-display area surrounding the display area, the display panel further comprising:
the pixel layer comprises a plurality of pixel electrodes, and the pixel electrodes are arranged in the display area;
the touch layer is arranged on one side of the pixel layer and comprises a plurality of touch electrodes;
the driving chip is arranged in the non-display area and comprises a plurality of touch control pins and a plurality of data pins;
the plurality of data wires are respectively connected with the plurality of pixel electrodes and the plurality of data pins;
the touch control device comprises a plurality of touch control wires, wherein the touch control wires are respectively and correspondingly connected with the touch control electrodes and the touch control pins, and the projections of all the touch control wires and all the data wires in the non-display area are not crossed.
2. The display panel according to claim 1, wherein the plurality of data pins includes a first data pin and a second data pin which are adjacent to each other;
the plurality of touch pins comprise a first touch pin and a second touch pin which are adjacent, and the first touch pin is adjacent to the second touch pin;
the plurality of touch-control wires comprise a first touch-control wire, and the first touch-control wire is arranged between the first data pin and the second data pin in the non-display area and is connected with the first touch-control pin.
3. The display panel according to claim 2, wherein the first touch pin comprises a first side facing the display area and a second side opposite to the first side;
the first touch wire bypasses the second data pin and is connected with the second side of the first touch pin.
4. The display panel according to claim 3, wherein the second touch pin comprises a first side facing the display area and a second side opposite to the first side;
the plurality of touch-control wires further comprise a second touch-control wire adjacent to the first touch-control wire, and the second touch-control wire is connected with the first side of the second touch-control pin in the non-display area.
5. The display panel according to claim 4, wherein the length of the second touch trace in the non-display area is smaller than the length of the first touch trace in the non-display area.
6. The display panel according to claim 2, wherein the first data pins and the second data pins are disposed in two adjacent rows, the first touch pins and the second touch pins are disposed in two adjacent rows, and the first data pins and the first touch pins are disposed in the same row.
7. The display panel according to claim 6, wherein the first data pin comprises a first side facing the display area and a second side opposite to the first side;
the second data pin comprises a first side facing the display area and a second side opposite to the first side;
the plurality of data wires comprise a first data wire and a second data wire which are adjacent, the first data wire is connected with the first side of the first data pin, and the second data wire is connected with the first side of the second data pin.
8. The display panel according to claim 1, wherein the plurality of data pins includes a first data pin and a second data pin which are adjacent to each other;
the plurality of touch pins comprise a first touch pin and a second touch pin which are adjacent, and the first touch pin is adjacent to the second touch pin;
the plurality of data wires comprise first data wires, and the first data wires are arranged between the first touch pins and the second touch pins in the non-display area and are connected with the first data pins.
9. A display panel characterized by comprising a display area and a non-display area surrounding the display area, the display panel further comprising:
the pixel layer comprises a plurality of pixel electrodes, and the pixel electrodes are arranged in the display area;
the touch layer is arranged on one side of the pixel layer and comprises a plurality of touch electrodes;
the driving chip is arranged in the non-display area and comprises a plurality of touch control pins and a plurality of data pins;
the plurality of data wires are respectively connected with the plurality of pixel electrodes and the plurality of data pins;
the touch control device comprises a plurality of touch control wires, wherein the touch control wires are respectively and correspondingly connected with a plurality of touch control electrodes and a plurality of touch control pins, and at least one touch control wire is connected with the touch control pins by bypassing the data wires and the data pins in the non-display area so as to enable the touch control wires and the data wires not to be crossed.
10. A display device, comprising:
a display panel according to any one of claims 1 to 9;
the shell is connected with the display panel to bear the display panel.
CN202210117828.XA 2022-02-08 2022-02-08 Display panel and display device Active CN114509886B (en)

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