CN113110757A - Touch display panel and touch display device - Google Patents

Touch display panel and touch display device Download PDF

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Publication number
CN113110757A
CN113110757A CN202110412357.0A CN202110412357A CN113110757A CN 113110757 A CN113110757 A CN 113110757A CN 202110412357 A CN202110412357 A CN 202110412357A CN 113110757 A CN113110757 A CN 113110757A
Authority
CN
China
Prior art keywords
layer
touch
driving circuit
display panel
metal layer
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.)
Pending
Application number
CN202110412357.0A
Other languages
Chinese (zh)
Inventor
胡许武
刘阳升
李凌云
张毅军
党志伟
文元泓
林伟
金楻
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
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN202110412357.0A priority Critical patent/CN113110757A/en
Publication of CN113110757A publication Critical patent/CN113110757A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G06T7/001—Industrial image inspection using an image reference approach
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Abstract

The invention relates to a touch display panel and a touch display device. The touch display panel comprises a driving circuit layer, a shading layer and a touch layer; forming a display area and a wiring area on the touch display panel, wherein the wiring area is adjacent to the display area; the shading layer is located between the driving circuit layer and the touch layer, wherein the projection of the shading layer on the driving circuit layer is located in the wiring area, the touch layer comprises touch lines, and the projection of the touch lines on the driving circuit layer is located in the wiring area. According to the embodiment of the invention, the interference generated by the driving circuit layer positioned at the lower layer of the touch layer can be avoided, the false detection rate is reduced, and the accuracy of detecting defects is improved.

Description

Touch display panel and touch display device
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
In the related art, in order to reduce the folding radius of the folded display Panel, an FMLOC (Flexible Multi-Layer On display Panel) process is adopted for a TSP (Touch Screen Panel). Specifically, two metal layers are formed on a packaging layer of the display panel, the transmitting electrode and the receiving electrode are respectively metal grids and are located on one of the two metal layers, and the touch control line is located on one or two of the two metal layers.
However, when the optical detection device is used for photographing the touch display panel to acquire gray scale data so as to detect whether the touch lines in the wiring area have defects, the false detection rate is high.
Disclosure of Invention
The invention provides a touch display panel and a touch display device, which are used for solving the defects in the related art.
According to a first aspect of the embodiments of the present invention, there is provided a touch display panel, including: the driving circuit layer, the shading layer and the touch layer; forming a display area and a wiring area on the touch display panel, wherein the wiring area is adjacent to the display area;
the light shield layer is located between the driving circuit layer and the touch layer, wherein the projection of the light shield layer on the driving circuit layer is located in the wiring area, the touch layer comprises a touch line, and the projection of the touch line on the driving circuit layer is located in the wiring area.
In one embodiment, the material of the light shielding layer is a black organic material.
In one embodiment, the touch layer includes a first metal layer and a second metal layer, the first metal layer is located on one side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on one side of the first metal layer away from the driving circuit layer;
a part of the projection of the first metal layer on the driving circuit layer is positioned in the wiring area, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area;
the touch control line is at least positioned on one of the first metal layer and the second metal layer.
In one embodiment, the touch display panel further includes an encapsulation layer located between the driving circuit layer and the light shielding layer.
In one embodiment, the material of the light shielding layer is a metal material.
In one embodiment, the touch layer includes a first metal layer and a second metal layer, the first metal layer is located on one side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on one side of the first metal layer away from the driving circuit layer;
the shading layer is a part of the first metal layer, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area; the touch control line is located on the second metal layer.
In one embodiment, the touch layer includes a first metal layer and a second metal layer, the first metal layer is located on one side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on one side of the first metal layer away from the driving circuit layer; a part of the projection of the first metal layer on the driving circuit layer is positioned in the wiring area, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area; the touch control line is at least positioned on one of the first metal layer and the second metal layer;
the touch display panel further comprises an encapsulation layer; the packaging layer is positioned between the driving circuit layer and the touch layer;
the packaging layer comprises an organic packaging layer, and the light shielding layer is a part of the organic packaging layer.
In one embodiment, the organic encapsulation layer includes a transparent portion, and a projection of the transparent portion on the driving circuit layer is located in the display region.
In one embodiment, the encapsulation layer further comprises a first inorganic encapsulation layer and a second inorganic encapsulation layer; the organic encapsulation layer is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.
According to a second aspect of the embodiments of the present invention, there is provided a touch display device, including: the touch control chip and the touch control display panel are arranged on the touch control chip; the touch control line is connected with the touch control chip.
According to the embodiment, the light shielding layer is located between the driving circuit layer and the touch control layer, the projection of the light shielding layer on the driving circuit layer is located in the wiring area, and the projection of the touch control line on the touch control layer is located in the wiring area, so that when the optical detection equipment is used for photographing the touch control display panel to acquire gray scale data so as to detect whether the touch control line in the wiring area has defects, the interference generated by the driving circuit layer located at the lower layer of the touch control layer can be avoided, the false detection rate is reduced, and the accuracy of detecting the defects is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a touch display panel according to the related art;
FIG. 2 is a schematic diagram of a touch display panel according to the related art;
FIG. 3 is a schematic diagram of a touch display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another touch display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another touch display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another touch display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another touch display panel according to an embodiment of the present invention;
fig. 8 is a schematic view illustrating another touch display panel structure according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the related art, in order to reduce the folding radius of the folded display Panel, an FMLOC (Flexible Multi-Layer On display Panel) process is adopted for a TSP (Touch Screen Panel). Specifically, two metal layers are formed on an encapsulation layer of the display panel, one of the two metal layers includes a transmitting electrode and a receiving electrode, the other metal layer includes a bridging portion of one of the transmitting electrode and the receiving electrode, and the touch control lines are located on one or two of the two metal layers. The transmitting electrode and the receiving electrode are respectively metal grids for touch control, no external TSP is needed, the thickness of the touch display device is reduced, the touch display device can be folded conveniently, the laminating tolerance is avoided, and the width of a frame can be reduced.
The transmitting electrode and the receiving electrode are located in the display area, the touch control line is located in the wiring area, and the wiring area is adjacent to the display area and can be arranged around the display area. Because the periods of the routing area and the display area are completely different, the defects existing in the routing area cannot be detected through period comparison, an optical inspection device (AOI) needs to be used for photographing two adjacent touch display panels on the glass substrate to acquire gray scale data, and then whether the touch lines in the routing area of the touch display panels have defects is detected through comparison of the gray scale data of the two adjacent touch display panels.
However, as shown in fig. 1 and 2, the metal pattern 12 in the driving circuit layer below the touch line 11 interferes, so that the misdetection rate is high, and is greater than 80%, which affects the function of the optical inspection Apparatus (AOI) in the FMLOC process. In addition, since the main defect in the FMLOC process is a short circuit in the routing area, it is very important to detect whether the touch line 11 in the routing area of the touch display panel has a defect. How to reduce the false detection rate is a technical problem to be solved.
In order to solve the above technical problems, embodiments of the present invention provide a touch display panel and a touch display device, which can reduce a false detection rate and improve an accuracy rate of detecting defects.
The embodiment of the invention provides a touch display panel 3. As shown in fig. 3, a display area AA and a wiring area NA are formed on the touch display panel 3, and the wiring area NA is adjacent to the display area AA. As shown in fig. 4, the touch display panel 3 includes: a driving circuit layer 41, a light-shielding layer 42 and a touch layer 43.
In this embodiment, as shown in fig. 4, the light shielding layer 42 is located between the driving circuit layer 41 and the touch layer 43, wherein a projection of the light shielding layer 42 on the driving circuit layer 41 is located in the routing area NA. As shown in fig. 3, the touch layer 43 includes touch lines 431, and a projection of the touch lines 431 on the driving circuit layer 41 is located in the routing area NA.
In this embodiment, since the light-shielding layer 42 is located between the driving circuit layer 41 and the touch-sensing layer 43, the projection of the light-shielding layer 42 on the driving circuit layer 41 is located in the wire running area NA, and the projection of the touch-sensing line 431 on the touch-sensing layer 43 on the driving circuit layer 41 is located in the wire running area NA, when the optical detection device is used to photograph the touch-sensing display panel 3 and acquire gray scale data to detect whether the touch-sensing line 431 in the wire running area NA has a defect, the interference generated by the driving circuit layer 41 located below the touch-sensing layer 43 can be avoided, the false detection rate is reduced, and the accuracy of detecting the defect is improved.
The touch display panel 3 provided by the embodiment of the present invention is briefly described above, and the touch display panel 3 provided by the embodiment of the present invention is described in detail below.
The embodiment of the invention also provides a touch display panel 3. As shown in fig. 3, the touch display panel 3 includes: a display area AA and a wiring area NA. The wiring area NA is adjacent to the display area AA and surrounds the display area AA. The display area AA is used for displaying an image and for detecting a touch position. The routing area NA is used to provide a space for routing.
In this embodiment, as shown in fig. 4, the touch display panel 3 includes: a driving circuit layer 41, a light emitting layer 44, a packaging layer 45, a light shielding layer 42 and a touch layer 43.
In this embodiment, as shown in fig. 4, the driving circuit layer 41 is located in the display area AA and the routing area NA. The driving circuit layer 41 includes a pixel circuit for driving the pixel to emit light and a display control trace connected to the pixel circuit. The pixel circuit is located in the display area AA. The pixel circuit may be a 1T pixel circuit, a 2T1C pixel circuit, a 3T1C pixel circuit, a 4T1C pixel circuit, a 5T1C pixel circuit, a 6T1C pixel circuit, a 7T1C pixel circuit, an 8T1C pixel circuit, or an 8T2C pixel circuit, but is not limited thereto. The pixel circuit may include at least one transistor, and may also include a transistor and a capacitor. The display control trace is located in the trace area NA. The material of the display control wire is a metal material.
In the present embodiment, as shown in fig. 4, the light emitting layer 44 is located in the display area AA. The light emitting layer 44 includes pixels arranged in an array. The pixels may be OLED pixels, but are not limited thereto.
In the present embodiment, as shown in fig. 4, the encapsulating layer 45 is located between the driving circuit layer 41 and the light shielding layer 42, and also between the light emitting layer 44 and the light shielding layer 42. The encapsulation layer 45 is located in the display area AA and the wiring area NA, and is used for protecting the pixels and preventing water and oxygen from corroding the organic light emitting layer in the pixels. In this embodiment, the encapsulation layer 45 is transparent. The encapsulation layer 45 may include a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer, the first inorganic encapsulation layer is located on one side of the light emitting layer 44 away from the driving circuit layer 41, the organic encapsulation layer is located on one side of the first inorganic encapsulation layer away from the driving circuit layer 41, and the second inorganic encapsulation layer is located on one side of the organic encapsulation layer away from the driving circuit layer 41. The organic encapsulation layer can be prepared by inkjet printing, but is not limited thereto.
In the present embodiment, the material of the first inorganic encapsulation layer may be silicon nitride, silicon oxide, or silicon oxynitride, but is not limited thereto. The material of the organic encapsulation layer may be, but is not limited to, acrylate or epoxy. The material of the second inorganic encapsulation layer may be silicon nitride, silicon oxide, or silicon oxynitride, but is not limited thereto.
In this embodiment, as shown in fig. 4, 5 and 6, the light-shielding layer 42 is located between the encapsulation layer 45 and the touch layer 43, that is, the light-shielding layer 42 is located between the driving circuit layer 41 and the touch layer 43. The projection of the light shielding layer 42 on the driving circuit layer 41 is located in the wiring area NA. The material of the light-shielding layer 42 is a black organic material, and can be prepared by an inkjet printing process. Fig. 5 is an enlarged schematic view of a portion a in fig. 3, and fig. 6 is an enlarged schematic view of a portion B in fig. 3.
In the present embodiment, as shown in fig. 3 and 4, the touch layer 43 is located on the side of the encapsulation layer 45 and the light shielding layer 42 away from the driving circuit layer 41. The touch layer 43 includes touch electrodes 432 and touch lines 431 arranged in an array. The touch electrode 432 is located in the display area AA, and the touch wire 431 is located in the routing area NA, i.e. the projection of the touch wire 431 on the driving circuit layer 41 is located in the routing area NA. The touch electrode 432 includes a transmitting electrode 4321 and a receiving electrode 4322, and the transmitting electrode 4321 and the receiving electrode 4322 may be metal grids, respectively. The transmitting electrodes 4321 may be arranged in the first direction X, and the receiving electrodes 4322 may be arranged in the second direction Y, but are not limited thereto. Wherein the first direction X intersects with and is perpendicular to the second direction Y. Each touch line 431 is connected to a corresponding touch electrode 432.
In this embodiment, the touch layer 43 may include a first metal layer, an insulating layer and a second metal layer, the first metal layer is located on the side of the light shielding layer 42 away from the driving circuit layer 41, and the second metal layer is located on the side of the first metal layer away from the driving circuit layer 41. The insulating layer is located between the first metal layer and the second metal layer.
In the present embodiment, a part of the projection of the first metal layer on the driving circuit layer 41 is located in the wiring area NA, and another part is located in the display area AA. A part of the projection of the second metal layer on the driving circuit layer 41 is located in the wiring area NA, and another part is located in the display area AA.
In this embodiment, the touch electrode 432 may be located on the second metal layer. The touch lines 431 are located in the first metal layer and the second metal layer, for example, a portion of the touch lines 431 for transmitting the same touch signal is located in the first metal layer, and another portion is located in the second metal layer. Of course, in other embodiments, the touch lines 431 may be located only in the first metal layer or only in the second metal layer.
In this embodiment, since the light-shielding layer 42 is located between the driving circuit layer 41 and the touch-sensing layer 43, the projection of the light-shielding layer 42 on the driving circuit layer 41 is located in the wire running area NA, and the projection of the touch-sensing line 431 on the touch-sensing layer 43 on the driving circuit layer 41 is located in the wire running area NA, when the optical detection device is used to photograph the touch-sensing display panel 3 and acquire gray scale data to detect whether the touch-sensing line 431 in the wire running area NA has a defect, the interference generated by the driving circuit layer 41 located below the touch-sensing layer 43 can be avoided, the false detection rate is reduced, and the accuracy of detecting the defect is improved.
The embodiment of the invention also provides a touch display panel 3. In the present embodiment, unlike the above-described embodiments, the material of the light-shielding layer 42 is a metal material.
In the present embodiment, as shown in fig. 5 to 7, the touch layer 43 may include a first metal layer 435, an insulating layer 436 and a second metal layer 437. The light-shielding layer 42 is a part of the first metal layer 435 in the touch layer 43. Namely, the part of the first metal layer 435 on the driving circuit layer 41, which is projected on the wiring area NA, is the light shielding layer 42, and the part of the metal layer is not patterned. The touch line 431 is located on the second metal layer 437.
In this embodiment, the metal layer in the touch layer 43 close to the driving circuit layer 41 is used to shield light, so that interference generated by the driving circuit layer 41 under the touch layer 43 can be avoided, the false detection rate is reduced, and the accuracy of detecting defects is improved.
The embodiment of the invention also provides a touch display panel 3. In the present embodiment, unlike the above-described embodiments, the light-shielding layer 42 is located in the encapsulating layer 45.
In the present embodiment, as shown in fig. 8, the encapsulation layer 45 may include a first inorganic encapsulation layer 451, an organic encapsulation layer 452, and a second inorganic encapsulation layer 453. The light-shielding layer 42 is a part of the organic encapsulation layer 452. The portion of the organic encapsulation layer 452 located in the display area AA is transparent, and the portion located in the wiring area NA is used for shielding light. The organic encapsulation layer 452 may be prepared by an inkjet printing process.
In this embodiment, the portion of the organic encapsulation layer 452 in the routing area NA in the encapsulation layer 45 is used to shield light, so that the interference generated by the driving circuit layer 41 below the touch layer 43 can be avoided, the false detection rate is reduced, and the accuracy of detecting defects is improved.
The embodiment of the present invention further provides a touch display device, which includes a touch chip and the touch display panel 3 of any of the above embodiments. The touch line 431 is connected to the touch chip.
In this embodiment, since the light shielding layer 42 is located between the driving circuit layer 41 and the touch layer 43, the projection of the light shielding layer 42 on the driving circuit layer 41 is located in the wire routing area NA, and the projection of the touch line 431 of the touch layer 43 on the driving circuit layer 41 is located in the wire routing area NA, when the optical detection device is used to photograph the touch display panel 3 and acquire gray scale data to detect whether the touch line 431 in the wire routing area NA has a defect, the interference generated by the driving circuit layer 41 located below the touch layer 43 can be avoided, the false detection rate is reduced, and the accuracy of detecting the defect is improved.
The display device in this embodiment may be: any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, a navigator and the like.
It is noted that in the drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. Also, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer or intervening layers may also be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may also be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intermediate layer or element may also be present. Like reference numerals refer to like elements throughout.
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. A touch display panel, comprising: the driving circuit layer, the shading layer and the touch layer; forming a display area and a wiring area on the touch display panel, wherein the wiring area is adjacent to the display area;
the light shield layer is located between the driving circuit layer and the touch layer, wherein the projection of the light shield layer on the driving circuit layer is located in the wiring area, the touch layer comprises a touch line, and the projection of the touch line on the driving circuit layer is located in the wiring area.
2. The touch display panel according to claim 1, wherein the light-shielding layer is made of a black organic material.
3. The touch display panel according to claim 2, wherein the touch layer comprises a first metal layer and a second metal layer, the first metal layer is located on a side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on a side of the first metal layer away from the driving circuit layer;
a part of the projection of the first metal layer on the driving circuit layer is positioned in the wiring area, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area;
the touch control line is at least positioned on one of the first metal layer and the second metal layer.
4. The touch display panel according to claim 2, further comprising an encapsulation layer between the driving circuit layer and the light-shielding layer.
5. The touch display panel according to claim 1, wherein the light-shielding layer is made of a metal material.
6. The touch display panel according to claim 5, wherein the touch layer comprises a first metal layer and a second metal layer, the first metal layer is located on a side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on a side of the first metal layer away from the driving circuit layer;
the shading layer is a part of the first metal layer, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area; the touch control line is located on the second metal layer.
7. The touch display panel according to claim 1, wherein the touch layer comprises a first metal layer and a second metal layer, the first metal layer is located on a side of the light shielding layer away from the driving circuit layer, and the second metal layer is located on a side of the first metal layer away from the driving circuit layer; a part of the projection of the first metal layer on the driving circuit layer is positioned in the wiring area, and a part of the projection of the second metal layer on the driving circuit layer is positioned in the wiring area; the touch control line is at least positioned on one of the first metal layer and the second metal layer;
the touch display panel further comprises an encapsulation layer; the packaging layer is positioned between the driving circuit layer and the touch layer;
the packaging layer comprises an organic packaging layer, and the light shielding layer is a part of the organic packaging layer.
8. The touch display panel of claim 7, wherein the organic encapsulation layer comprises a transparent portion, and a projection of the transparent portion on the driving circuit layer is located in the display area.
9. The touch display panel of claim 7, wherein the encapsulation layer further comprises a first inorganic encapsulation layer and a second inorganic encapsulation layer; the organic encapsulation layer is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.
10. A touch display device, comprising: a touch chip and the touch display panel according to any one of claims 1 to 9; the touch control line is connected with the touch control chip.
CN202110412357.0A 2021-04-16 2021-04-16 Touch display panel and touch display device Pending CN113110757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110412357.0A CN113110757A (en) 2021-04-16 2021-04-16 Touch display panel and touch display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110412357.0A CN113110757A (en) 2021-04-16 2021-04-16 Touch display panel and touch display device

Publications (1)

Publication Number Publication Date
CN113110757A true CN113110757A (en) 2021-07-13

Family

ID=76718043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110412357.0A Pending CN113110757A (en) 2021-04-16 2021-04-16 Touch display panel and touch display device

Country Status (1)

Country Link
CN (1) CN113110757A (en)

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