CN113064505A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN113064505A CN113064505A CN202110226103.XA CN202110226103A CN113064505A CN 113064505 A CN113064505 A CN 113064505A CN 202110226103 A CN202110226103 A CN 202110226103A CN 113064505 A CN113064505 A CN 113064505A
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- 239000002184 metal Substances 0.000 claims abstract description 109
- 238000004806 packaging method and process Methods 0.000 claims abstract description 24
- 238000005538 encapsulation Methods 0.000 claims description 60
- 239000002245 particle Substances 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 307
- 238000000151 deposition Methods 0.000 description 22
- 238000000059 patterning Methods 0.000 description 10
- 229920002120 photoresistant polymer Polymers 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- 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
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Abstract
The invention provides a touch display panel and a touch display device. The touch display panel comprises a back plate, a packaging layer, a first metal layer and a second metal layer; the packaging layer is positioned on the back plate; the first metal layer is positioned above the packaging layer and comprises a plurality of patterned driving electrodes; the second metal layer is positioned on the first metal layer and comprises a plurality of patterned receiving electrodes, and the receiving electrodes are used for receiving touch sensing signals sent by the driving electrodes; at least one planarization layer is arranged between the second metal layer and the packaging layer. According to the invention, the at least one planarization layer is arranged between the receiving electrode and the packaging layer, so that the bulge generated by the particles on the packaging layer is filled, the short circuit between the driving electrode and the receiving electrode above the packaging layer is avoided, and the yield of the self-capacitance touch control circuit is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
An OLED (Organic Light-Emitting Diode) display panel has an increasingly wide application range due to its advantages of Light weight, self-luminescence, wide viewing angle, low driving voltage, high Light-Emitting efficiency, low power consumption, fast response speed, and the like. In the OLED display panel in the prior art, the touch circuit is directly deposited on the packaging layer to replace an externally hung touch screen, so that the cost is saved.
The driving electrode of the self-contained touch circuit is positioned below the receiving electrode, and the packaging layer is thick and has more particles, so that short circuit is easily caused between the driving electrode and the receiving electrode above the particles, and abnormal touch is caused. Therefore, it is necessary to improve this defect.
Disclosure of Invention
The embodiment of the invention provides a touch display panel, which is used for solving the technical problem of abnormal touch caused by short circuit between a driving electrode and a receiving electrode of the self-contained touch display panel in the prior art.
The embodiment of the invention provides a touch display panel, which comprises a back plate, a packaging layer, a first metal layer and a second metal layer; the packaging layer is positioned on the back plate; the first metal layer is positioned above the packaging layer and comprises a plurality of patterned driving electrodes; the second metal layer is positioned on the first metal layer and comprises a plurality of patterned receiving electrodes, and the receiving electrodes are used for receiving touch sensing signals sent by the driving electrodes; at least one planarization layer is arranged between the second metal layer and the packaging layer.
In the touch display panel provided in the embodiment of the present invention, the planarization layer is located between the second metal layer and the first metal layer, and a first insulating layer is disposed between the first metal layer and the encapsulation layer.
In the touch display panel provided in the embodiment of the present invention, a second planarization layer is disposed between the first insulating layer and the encapsulation layer.
In the touch display panel provided in the embodiment of the present invention, the touch display panel further includes a first insulating layer and a second insulating layer, the first insulating layer is disposed between the first metal layer and the encapsulation layer, and the second insulating layer is disposed between the second metal layer and the first metal layer.
In the touch display panel provided in the embodiment of the invention, the planarization layer is disposed between the first insulating layer and the encapsulation layer.
In the touch display panel provided in the embodiment of the invention, the planarization layer is disposed between the second insulating layer and the first metal layer.
In the touch display panel provided in the embodiment of the present invention, the planarization layer includes a first planarization layer and a second planarization layer, the first planarization layer is disposed between the first insulating layer and the encapsulation layer, and the second planarization layer is disposed between the second insulating layer and the first metal layer.
In the touch display panel provided in the embodiment of the invention, the thickness of the planarization layer is any value between 0.5 micrometers and 4 micrometers.
In the touch display panel provided in the embodiment of the present invention, the second metal layer further includes a touch trace, and the touch trace is electrically connected to the driving electrode through a via hole.
The embodiment of the invention also provides a touch display device which comprises the touch display panel.
Has the advantages that: according to the touch display panel provided by the embodiment of the invention, the at least one planarization layer is arranged between the receiving electrode and the packaging layer, so that the bulge generated by the particles on the packaging layer is filled, the short circuit between the driving electrode and the receiving electrode above the packaging layer is avoided, and the yield of the self-capacitance touch circuit is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic diagram of a basic structure of a first touch display panel according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a basic structure of a second touch display panel according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a basic structure of a third touch display panel according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a basic structure of a fourth touch display panel according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a basic structure of a fifth touch display panel according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the size and thickness of components illustrated in the drawings are not to scale for clarity and ease of understanding and description.
As shown in fig. 1, which is a schematic view of a basic structure of a first touch display panel according to an embodiment of the present invention, the touch display panel includes a back plate 10, a package layer 20, a first metal layer 30, and a second metal layer 40.
The backplane 10 is an OLED backplane, and the OLED backplane includes a substrate layer not shown in the figure, a driving circuit layer disposed on the substrate layer, and a light-emitting functional layer disposed on the driving circuit layer. Or the backplane 10 is a liquid crystal backplane, and the liquid crystal backplane includes an array substrate, a color film substrate and a liquid crystal molecule layer disposed between the array substrate and the color film substrate, where a backlight module is further disposed on a side of the array substrate away from the color film substrate.
The encapsulation layer 20 is located on the backplane 10, and specifically, the encapsulation layer 20 includes a first inorganic layer, an organic layer, and a second inorganic layer, where the first inorganic layer is not shown in the figure, the organic layer is located on the first inorganic layer, and the second inorganic layer is located on the organic layer, where the first inorganic layer and the second inorganic layer may be made of silicon nitride or silicon oxide, and the organic layer may be made of polyimide or polyethylene terephthalate.
The first metal layer 30 is located on the encapsulation layer 20 and includes a plurality of patterned driving electrodes; the second metal layer 40 is located above the first metal layer 30, and includes a plurality of patterned receiving electrodes 401, where the receiving electrodes 401 are used to receive the touch sensing signals sent by the driving electrodes.
It can be understood that the driving electrode is used to emit a touch sensing signal (low voltage and high frequency signal) to be projected to the receiving electrode 401, so as to form a stable current. When a human body touches the touch display panel, an equivalent capacitance is formed between a finger and the touch display panel due to the grounding of the human body, and a high-frequency signal can flow into the ground through the equivalent capacitance, so that the charge amount received by the receiving electrode 401 is reduced (the reduced part flows into the ground through the human body), and finally, the touched point (touch point position) is determined according to the current intensity received by the receiving electrode 401.
At least one planarization layer 50 is disposed between the second metal layer 40 and the package layer 20. It can be understood that, due to the thicker thickness of the encapsulation layer 20 and the presence of more particles (not shown), the surface of the encapsulation layer 20 has protrusions (not shown), when the first metal layer 30 is prepared, the protrusions covered by the first metal layer 30 on the surface of the encapsulation layer 20 also form protrusions, which easily causes a short circuit between the second metal layer 40 on the first metal layer 30 and the first metal layer 30, resulting in abnormal touch control. According to the invention, at least one planarization layer 50 is arranged between the second metal layer 40 and the packaging layer 20, and the planarization layer 50 can fill up the bumps formed by the packaging layer 20, so that short circuit between the first metal layer 30 and the second metal layer 40 is avoided, and the yield of the touch display panel is improved.
In one embodiment, the planarization layer 50 is located between the second metal layer 40 and the first metal layer 30, and a first insulating layer 601 is disposed between the first metal layer 30 and the encapsulation layer 20. It can be understood that, in the present embodiment, only the planarization layer 50 is disposed between the first metal layer 30 and the second metal layer 40, and the planarization layer 50 can both function as an insulating layer and fill up the bumps (not shown) formed by the encapsulation layer 20, compared with the prior art, in the present embodiment, the insulation layer between the first metal layer 30 and the second metal layer 40 is replaced by the planarization layer 50, so that the first metal layer 30 and the second metal layer 40 are insulated from each other, and the short circuit between the first metal layer 30 and the second metal layer 40 is avoided.
In one embodiment, the thickness of the planarization layer 50 is any value between 0.5 micrometers and 4 micrometers, and the specific thickness depends on the maximum height of the protrusions on the surface of the encapsulation layer 20, and the thickness of the planarization layer 50 is only required to be greater than the maximum height of the protrusions on the surface of the encapsulation layer 20.
In one embodiment, the second metal layer 40 further includes a touch trace 402, and the touch trace 402 is electrically connected to the driving electrode through the via 80. It can be understood that the touch trace 402 is located at an edge of the touch display panel, and is used for transmitting an external touch signal to the driving electrode, so as to implement self-capacitance touch.
In this embodiment, the process of manufacturing the touch display panel includes: firstly, a back plate 10 and an encapsulation layer 20 are prepared, the back plate 10 and the encapsulation layer 20 are not the focus of the invention, and the specific structure and the preparation process are not described in detail; a first insulating layer 601 is then deposited over the encapsulation layer 20; next, depositing a first metal layer 30 over the first insulating layer 601, and patterning to form a plurality of driving electrodes; next, depositing a planarization layer 50 over the first insulating layer 601, wherein the planarization layer 50 covers the plurality of driving electrodes and fills in the bumps generated by the encapsulation layer 20; the planarization layer 50 is then etched to form a via 80; then depositing a second metal layer 40 above the planarization layer 50, and patterning to form a plurality of receiving electrodes 401 and touch traces 402, where the touch traces 402 are electrically connected to the driving electrodes through the via holes 80; finally, an organic photoresist layer 70 is deposited over the planarization layer 50, and the organic photoresist layer 70 covers the plurality of receiving electrodes 401 and the touch trace 402 to protect the plurality of receiving electrodes 401 and the touch trace 402.
Next, referring to fig. 2, a basic structure diagram of a second touch display panel according to an embodiment of the present invention is shown, where the touch display panel includes a back plate 10, a package layer 20, a first metal layer 30, and a second metal layer 40; the packaging layer 20 is positioned on the back plate 10; the first metal layer 30 is located on the encapsulation layer 20 and includes a plurality of patterned driving electrodes; the second metal layer 40 is located above the first metal layer 30, and includes a plurality of patterned receiving electrodes 401, where the receiving electrodes 401 are used to receive touch sensing signals sent by the driving electrodes; only the planarization layer 50 is disposed between the second metal layer 40 and the first metal layer 30, and a first insulating layer 601 is disposed between the first metal layer 30 and the package layer 20.
In this embodiment, a second planarization layer 502 is disposed between the first insulating layer 601 and the encapsulation layer 20. Compared with the first touch display panel provided by the embodiment of the invention, in the embodiment, the second planarization layer 502 is additionally arranged on the basis of the first touch display panel, the second planarization layer 502 is arranged on the surface of the encapsulation layer 20, particles on the surface of the encapsulation layer 20 can be further filled, and the planarization effect is better.
In this embodiment, the process of manufacturing the touch display panel includes: firstly, a back plate 10 and an encapsulation layer 20 are prepared, the back plate 10 and the encapsulation layer 20 are not the focus of the invention, and the specific structure and the preparation process are not described in detail; then depositing a second planarization layer 502 above the encapsulation layer 20, and primarily planarizing the encapsulation layer 20; next depositing a first insulating layer 601 over the second planarization layer 502; next, depositing a first metal layer 30 over the first insulating layer 601, and patterning to form a plurality of driving electrodes; next, depositing a planarization layer 50 over the first insulating layer 601, the planarization layer 50 covering the plurality of driving electrodes, further filling in the bumps generated by the encapsulation layer 20; the planarization layer 50 is then etched to form a via 80; then depositing a second metal layer 40 above the planarization layer 50, and patterning to form a plurality of receiving electrodes 401 and touch traces 402, where the touch traces 402 are electrically connected to the driving electrodes through the via holes 80; finally, an organic photoresist layer 70 is deposited over the planarization layer 50, and the organic photoresist layer 70 covers the plurality of receiving electrodes 401 and the touch trace 402 to protect the plurality of receiving electrodes 401 and the touch trace 402.
Next, referring to fig. 3, a basic structure diagram of a third touch display panel according to an embodiment of the present invention includes a back plate 10, a package layer 20, a first metal layer 30, and a second metal layer 40; the packaging layer 20 is positioned on the back plate 10; the first metal layer 30 is located on the encapsulation layer 20 and includes a plurality of patterned driving electrodes; the second metal layer 40 is located above the first metal layer 30, and includes a plurality of patterned receiving electrodes 401, where the receiving electrodes 401 are used to receive touch sensing signals sent by the driving electrodes; the touch display panel further includes a first insulating layer 601 and a second insulating layer 602, wherein the first insulating layer 601 is disposed between the first metal layer 30 and the encapsulation layer 20, and the second insulating layer 602 is disposed between the second metal layer 40 and the first metal layer 30.
In the present embodiment, the planarization layer 50 is disposed between the first insulating layer 601 and the encapsulation layer 20, and in the present embodiment, the planarization layer 50 is disposed on the surface of the encapsulation layer 20 to planarize the encapsulation layer 20 before depositing the touch circuit, which solves the problem of mutual short circuit between the touch electrodes due to the protrusion generated by the particles on the surface of the encapsulation layer, compared with the prior art.
In this embodiment, the process of manufacturing the touch display panel includes: firstly, a back plate 10 and an encapsulation layer 20 are prepared, the back plate 10 and the encapsulation layer 20 are not the focus of the invention, and the specific structure and the preparation process are not described in detail; then, depositing a planarization layer 50 above the encapsulation layer 20, firstly planarizing the encapsulation layer 20, and then preparing a touch circuit; a first insulating layer 601 is next deposited over the planarization layer 50; next, depositing a first metal layer 30 over the first insulating layer 601, and patterning to form a plurality of driving electrodes; next depositing a second insulating layer 602 over the first insulating layer 601, the second insulating layer 602 covering the plurality of driving electrodes; etching the second insulating layer 602 to form a via 80; then depositing a second metal layer 40 above the second insulating layer 602, and patterning to form a plurality of receiving electrodes 401 and a plurality of touch traces 402, where the touch traces 402 are electrically connected to the driving electrodes through the via holes 80; finally, an organic photoresist layer 70 is deposited over the second insulating layer 602, and the organic photoresist layer 70 covers the plurality of receiving electrodes 401 and the touch trace 402 to protect the plurality of receiving electrodes 401 and the touch trace 402.
Next, referring to fig. 4, a basic structure diagram of a fourth touch display panel according to an embodiment of the present invention is shown, where the touch display panel includes a back plate 10, a package layer 20, a first metal layer 30, and a second metal layer 40; the packaging layer 20 is positioned on the back plate 10; the first metal layer 30 is located on the encapsulation layer 20 and includes a plurality of patterned driving electrodes; the second metal layer 40 is located above the first metal layer 30, and includes a plurality of patterned receiving electrodes 401, where the receiving electrodes 401 are used to receive touch sensing signals sent by the driving electrodes; the touch display panel further includes a first insulating layer 601 and a second insulating layer 602, wherein the first insulating layer 601 is disposed between the first metal layer 30 and the encapsulation layer 20, and the second insulating layer 602 is disposed between the second metal layer 40 and the first metal layer 30.
In the present embodiment, the planarization layer 50 is disposed between the second insulation layer 602 and the first metal layer 30, and the present embodiment prevents a short circuit between the first metal layer 30 and the second metal layer 40 due to the protrusion of the first metal layer 30 by disposing the planarization layer 50 between the first metal layer 30 and the second metal layer 40.
In this embodiment, the process of manufacturing the touch display panel includes: firstly, a back plate 10 and an encapsulation layer 20 are prepared, the back plate 10 and the encapsulation layer 20 are not the focus of the invention, and the specific structure and the preparation process are not described in detail; a first insulating layer 601 is then deposited over the encapsulation layer 20; next, depositing a first metal layer 30 over the first insulating layer 601, and patterning to form a plurality of driving electrodes; next depositing a planarization layer 50 over the first insulating layer 601, the planarization layer 50 covering the plurality of driving electrodes; next depositing a second insulating layer 602 over the planarization layer 50; next, etching the second insulating layer 602 and the planarization layer 50 to form a via 80; then depositing a second metal layer 40 above the second insulating layer 602, and patterning to form a plurality of receiving electrodes 401 and a plurality of touch traces 402, where the touch traces 402 are electrically connected to the driving electrodes through the via holes 80; finally, an organic photoresist layer 70 is deposited over the second insulating layer 602, and the organic photoresist layer 70 covers the plurality of receiving electrodes 401 and the touch trace 402 to protect the plurality of receiving electrodes 401 and the touch trace 402.
Next, referring to fig. 5, a basic structure diagram of a fifth touch display panel according to an embodiment of the present invention is shown, where the touch display panel includes a back plate 10, a package layer 20, a first metal layer 30, and a second metal layer 40; the packaging layer 20 is positioned on the back plate 10; the first metal layer 30 is located on the encapsulation layer 20 and includes a plurality of patterned driving electrodes; the second metal layer 40 is located above the first metal layer 30, and includes a plurality of patterned receiving electrodes 401, where the receiving electrodes 401 are used to receive touch sensing signals sent by the driving electrodes; the touch display panel further includes a first insulating layer 601 and a second insulating layer 602, wherein the first insulating layer 601 is disposed between the first metal layer 30 and the encapsulation layer 20, and the second insulating layer 602 is disposed between the second metal layer 40 and the first metal layer 30.
In this embodiment, the planarization layer 50 includes a first planarization layer 501 and a second planarization layer 502, the first planarization layer 501 is disposed between the first insulating layer 601 and the encapsulation layer 20, and the second planarization layer 502 is disposed between the second insulating layer 602 and the first metal layer 30. In the embodiment, by providing two planarization layers 501 and 502, the planarization effect is better than that of the third touch display panel or the fourth touch display panel.
In this embodiment, the process of manufacturing the touch display panel includes: firstly, a back plate 10 and an encapsulation layer 20 are prepared, the back plate 10 and the encapsulation layer 20 are not the focus of the invention, and the specific structure and the preparation process are not described in detail; then depositing a first planarization layer 501 above the encapsulation layer 20, and first performing preliminary planarization on the encapsulation layer 20; next, a first insulating layer 601 is deposited over the first planarization layer 501; next, depositing a first metal layer 30 over the first insulating layer 601, and patterning to form a plurality of driving electrodes; next depositing a second planarization layer 502 over the first insulating layer 601, the second planarization layer 502 covering the plurality of driving electrodes, further filling in the bumps created by the encapsulation layer 20; next depositing a second insulating layer 602 over the second planarization layer 502; next, etching the second insulating layer 602 and the second planarization layer 502 to form a via 80; then depositing a second metal layer 40 above the second insulating layer 602, and patterning to form a plurality of receiving electrodes 401 and a plurality of touch traces 402, where the touch traces 402 are electrically connected to the driving electrodes through the via holes 80; finally, an organic photoresist layer 70 is deposited over the second insulating layer 602, and the organic photoresist layer 70 covers the plurality of receiving electrodes 401 and the touch trace 402 to protect the plurality of receiving electrodes 401 and the touch trace 402.
The embodiment of the present invention further provides a touch display device, which includes a driving chip and the touch display panel, and the specific structure of the touch display panel is shown in fig. 1 to 5 and related description, which are not repeated herein. The touch display device provided by the embodiment of the invention can be as follows: products or components with display functions such as mobile phones, tablet computers, notebook computers, digital cameras, navigators and the like.
In summary, in the touch display panel provided in the embodiments of the present invention, the planarization layer is disposed between the receiving electrode and the encapsulation layer to fill up the protrusion generated by the particles on the encapsulation layer, so as to prevent the short circuit between the driving electrode and the receiving electrode above the encapsulation layer, improve the yield of the self-capacitance touch circuit, and solve the technical problem of abnormal touch caused by the short circuit between the driving electrode and the receiving electrode of the self-capacitance touch display panel in the prior art.
The touch display panel and the touch display device provided by the embodiments of the invention are described in detail above. It should be understood that the exemplary embodiments described herein should be considered merely illustrative for facilitating understanding of the method of the present invention and its core ideas, and not restrictive.
Claims (10)
1. A touch display panel, comprising:
a back plate;
an encapsulation layer located over the backplane;
a first metal layer located on the packaging layer and including a plurality of patterned driving electrodes;
the second metal layer is positioned on the first metal layer and comprises a plurality of patterned receiving electrodes, and the receiving electrodes are used for receiving touch sensing signals sent by the driving electrodes;
at least one planarization layer is arranged between the second metal layer and the packaging layer.
2. The touch display panel of claim 1, wherein the planarization layer is located between the second metal layer and the first metal layer, and a first insulating layer is disposed between the first metal layer and the encapsulation layer.
3. The touch display panel of claim 2, wherein a second planarization layer is disposed between the first insulating layer and the encapsulation layer.
4. The touch display panel of claim 1, further comprising a first insulating layer disposed between the first metal layer and the encapsulation layer and a second insulating layer disposed between the second metal layer and the first metal layer.
5. The touch display panel of claim 4, wherein the planarization layer is disposed between the first insulating layer and the encapsulation layer.
6. The touch display panel of claim 4, wherein the planarization layer is disposed between the second insulating layer and the first metal layer.
7. The touch display panel of claim 4, wherein the planarization layer comprises a first planarization layer and a second planarization layer, the first planarization layer is disposed between the first insulating layer and the encapsulation layer, and the second planarization layer is disposed between the second insulating layer and the first metal layer.
8. The touch display panel of claim 1, wherein the planarization layer has a thickness of any one of 0.5 to 4 micrometers.
9. The touch display panel of claim 1, wherein the second metal layer further comprises touch traces electrically connected to the driving electrodes through vias.
10. A touch display device comprising the touch display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110226103.XA CN113064505A (en) | 2021-03-01 | 2021-03-01 | Touch display panel and touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110226103.XA CN113064505A (en) | 2021-03-01 | 2021-03-01 | Touch display panel and touch display device |
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| CN113064505A true CN113064505A (en) | 2021-07-02 |
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| CN202110226103.XA Pending CN113064505A (en) | 2021-03-01 | 2021-03-01 | Touch display panel and touch display device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183122A (en) * | 2017-12-18 | 2018-06-19 | 武汉华星光电半导体显示技术有限公司 | Touch control display apparatus and preparation method thereof |
| CN111725273A (en) * | 2020-06-09 | 2020-09-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN111768693A (en) * | 2020-06-24 | 2020-10-13 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| CN111796718A (en) * | 2020-07-06 | 2020-10-20 | 京东方科技集团股份有限公司 | Touch display panel, preparation method thereof and display device |
| US20200348784A1 (en) * | 2019-04-15 | 2020-11-05 | Ordos Yuansheng Optoelectronics Co., Ltd. | Touch display substrate, method of manufacturing the same and display device |
-
2021
- 2021-03-01 CN CN202110226103.XA patent/CN113064505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183122A (en) * | 2017-12-18 | 2018-06-19 | 武汉华星光电半导体显示技术有限公司 | Touch control display apparatus and preparation method thereof |
| US20200348784A1 (en) * | 2019-04-15 | 2020-11-05 | Ordos Yuansheng Optoelectronics Co., Ltd. | Touch display substrate, method of manufacturing the same and display device |
| CN111725273A (en) * | 2020-06-09 | 2020-09-29 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN111768693A (en) * | 2020-06-24 | 2020-10-13 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| CN111796718A (en) * | 2020-07-06 | 2020-10-20 | 京东方科技集团股份有限公司 | Touch display panel, preparation method thereof and display device |
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Application publication date: 20210702 |