CN110968218B - Touch display panel and preparation method thereof - Google Patents
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- CN110968218B CN110968218B CN201911101932.4A CN201911101932A CN110968218B CN 110968218 B CN110968218 B CN 110968218B CN 201911101932 A CN201911101932 A CN 201911101932A CN 110968218 B CN110968218 B CN 110968218B
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- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 238000000059 patterning Methods 0.000 claims description 13
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 5
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910001257 Nb alloy Inorganic materials 0.000 claims description 3
- NXLSGYSTDQCZQM-UHFFFAOYSA-N [O-2].[Nb+5].[Mo+4] Chemical compound [O-2].[Nb+5].[Mo+4] NXLSGYSTDQCZQM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- DTSBBUTWIOVIBV-UHFFFAOYSA-N molybdenum niobium Chemical compound [Nb].[Mo] DTSBBUTWIOVIBV-UHFFFAOYSA-N 0.000 claims description 3
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical group [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229910000583 Nd alloy Inorganic materials 0.000 claims description 2
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- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application discloses a touch display panel and a preparation method thereof, wherein the display panel comprises a light-emitting display layer and a touch layer which is overlapped with the light-emitting display layer, and the light-emitting display layer comprises a plurality of light-emitting devices which are arranged in an array; the touch control layer comprises a plurality of bridging parts, a plurality of first touch control electrodes and second touch control electrodes which are arranged on the same layer, and an insulating layer positioned between the first touch control electrodes, the second touch control electrodes and the bridging parts; wherein, the insulating layer is a black shading layer. Through the mode, the thickness of the touch display panel can be reduced, reflection can be reduced, and the contrast ratio of the display panel is improved.
Description
Technical Field
The application relates to the technical field of semiconductors, in particular to a touch display panel and a preparation method thereof.
Background
With the rapid development of display technology, organic light emitting diode (Organic Light Emitting Diode, OLED) displays have become mainstream displays due to their self-luminescence characteristics. The Active matrix organic light emitting diode (Active-matrix Organic Light Emitting Diode, AMOLED) display has the characteristics of fast response speed, high contrast, low power consumption, high color gamut and the like, and is widely applied to mobile phone screens, computer displays, full-color computers and the like as a new generation of display mode.
With the development of touch technology, more displays with touch function are presented. The touch display panel can be divided into an external type and an embedded type according to different structures, and the embedded type touch display panel can be divided into an On-box type (On Cell) In which a touch circuit is covered On the panel and an embedded type (In Cell) In which the touch circuit is embedded In the panel. Along with the demand of people for light and thin, how to reduce the thickness of the touch display panel as much as possible under the premise of ensuring the performance of the touch display panel is a technical problem to be solved.
Disclosure of Invention
The technical problem that this application mainly solves is to provide a touch-control display panel and preparation method thereof, can reduce touch-control display panel's thickness, can reduce the reflection simultaneously, improves display panel's contrast.
In order to solve the technical problems, one technical scheme adopted by the application is as follows: the touch display panel comprises a light-emitting display layer and a touch layer which is overlapped with the light-emitting display layer, wherein the light-emitting display layer comprises a plurality of light-emitting devices which are arranged in an array; the touch control layer comprises a plurality of bridging parts, a plurality of first touch control electrodes and second touch control electrodes which are arranged on the same layer, and an insulating layer positioned between the first touch control electrodes, the second touch control electrodes and the bridging parts; the first touch electrodes and the second touch electrodes are arranged in a crisscross manner, the first touch electrodes are provided with fractures at the staggered positions so as to allow the second touch electrodes to pass through, the insulating layer is a black shading layer, and two through holes are formed in the insulating layer at two sides corresponding to the fractures; the bridging part is positioned at one side of the insulating layer opposite to the first touch electrode and the second touch electrode and is arranged corresponding to the fracture position, and two ends of the bridging part are respectively connected with the first touch electrodes at two sides of the fracture through two through holes.
The insulating layer is provided with a groove on one side opposite to the first touch electrode and the second touch electrode, the bridging part is filled in the groove, and the surface of the bridging part is flush with the insulating layer.
The touch display panel further comprises a plurality of polarized light parts which are laminated with the light-emitting display layer and are arranged on the same layer as the touch layer, the polarized light parts respectively correspond to the light-emitting devices, and the color of the polarized light parts allowing light to pass through is the same as the light-emitting color of the corresponding light-emitting devices.
The touch display panel further comprises a planarization layer which is laminated with the light-emitting display layer, wherein the planarization layer covers the touch layer and the plurality of polarizing parts, and the planarization layer is made of transparent polymer materials.
At least one of the first touch electrode, the second touch electrode and the bridging part comprises an antireflection metal layer, a second metal layer, a touch metal layer and a third metal layer which are sequentially stacked.
The anti-reflection metal layer comprises two first metal layers which are arranged in a stacked mode.
The refractive index of the first metal layer at the side close to the light-emitting display layer is smaller than that of the first metal layer at the side far away from the light-emitting display layer.
Wherein the material of the first metal layer is molybdenum oxide or molybdenum niobium oxide; the second metal layer and the third metal layer are made of molybdenum or molybdenum-niobium alloy; the touch metal layer is made of aluminum or aluminum neodymium alloy.
In order to solve the technical problems, another technical scheme adopted by the application is as follows: the method comprises forming a first touch metal layer on a light-emitting display layer, and patterning the first touch metal layer to form a touch electrode/bridge part; forming an insulating layer on the first touch metal layer by using a black shading material, and forming a via hole on the insulating layer; and forming a second touch metal layer on the insulating layer, and patterning the second touch metal layer to form a bridging part/touch electrode.
Wherein, before forming the second touch metal layer on the insulating layer, the method further comprises: forming a first polarized layer on the luminous display layer, patterning the first polarized layer to form a first polarized part, wherein the first polarized part corresponds to the first luminous device; forming a second polarized layer on the luminous display layer, patterning the second polarized layer to form a second polarized part, wherein the second polarized part corresponds to the second luminous device; and forming a third polarized layer on the luminous display layer, patterning the third polarized layer to form a third polarized part, wherein the third polarized part corresponds to the third luminous device.
The beneficial effects of this application are: in the condition of prior art, this application utilizes black shading layer to make the insulating layer between the touch-control metal layer, can shelter from when playing the insulating effect and cover metal electrode, reduces the reflection of metal electrode to light, can also absorb the external environment light that part got into display panel inside, further reduces the intensity of emergent reflection light, improves display panel's contrast ratio.
Drawings
Fig. 1 is a schematic top view of a touch display panel according to an embodiment of the disclosure;
FIG. 2 is a schematic cross-sectional view of the touch display panel of FIG. 1 at a bridging point along the A-A' direction;
FIG. 3 is a schematic cross-sectional view of a partial area of the touch display panel in the direction C-C' in FIG. 1;
FIG. 4 is a schematic diagram of a structure of a touch metal layer in a touch display panel according to an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of a touch metal layer in a touch display panel according to another embodiment of the present disclosure;
FIG. 6 is a schematic flow chart of a method for manufacturing a touch display panel according to an embodiment of the disclosure;
FIG. 7 is a schematic diagram of a display substrate provided in a method for manufacturing a touch display panel according to another embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating a bridge portion formed in a method for manufacturing a touch display panel according to another embodiment of the present disclosure;
fig. 9 is a schematic diagram illustrating an insulating layer formed in a method for manufacturing a touch display panel according to an embodiment of the present disclosure;
fig. 10 is a schematic view illustrating a polarized portion formed in a method for manufacturing a touch display panel according to another embodiment of the present disclosure;
fig. 11 is a schematic diagram illustrating formation of a touch electrode in a method for manufacturing a touch display panel according to another embodiment of the present disclosure;
fig. 12 is a schematic view illustrating a planarization layer formed in a method for manufacturing a touch display panel according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and effects of the present application clearer and more specific, the present application will be further described in detail below with reference to the accompanying drawings and examples.
The application provides a touch display panel which can be used for various display modes, such as OLED display, quantum dot display, micro-LED display and the like. The AMOLED display is described here as an example, but is not limited to this display mode.
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic top view of a touch display panel according to an embodiment of the disclosure, and fig. 2 is a schematic cross-sectional view of the touch display panel of fig. 1 at a bridging point along A-A' direction. In this embodiment, the touch display panel includes a light emitting display layer 10 and a touch layer 20 stacked with the light emitting display layer 10.
The light emitting display layer 10 includes a plurality of light emitting devices 110 arranged in an array.
In one embodiment, the light emitting display layer 10 specifically includes an array substrate, light emitting devices disposed on the array substrate, and a package layer covering the light emitting devices. The array substrate comprises a substrate base plate and a pixel circuit array; the light emitting device includes an anode layer, an organic light emitting layer, a cathode layer, and the like; the packaging layer comprises an inorganic film packaging layer and an organic film packaging layer which are stacked. The specific structure and materials of the light-emitting display layer are not limited in this application, and can be set according to the display mode of the display panel.
The touch layer 20 includes a plurality of bridging portions 230, a plurality of first touch electrodes 210 and second touch electrodes 220 disposed on the same layer, and an insulating layer 240 disposed between the first touch electrodes 210, the second touch electrodes 220 and the bridging portions 230.
The first touch electrodes 210 and the second touch electrodes 220 of the same layer are disposed in a crisscross manner, and the first touch electrodes 210 have a break at the staggered position for the second touch electrodes 220 to pass through. The bridge portion 230 is disposed at a position of the partial fracture to connect the first touch electrodes 210 at two sides of the fracture, two through holes 241 are disposed at two sides of the insulating layer 240 corresponding to the fracture, the bridge portion 230 is disposed at one side of the insulating layer 240 opposite to the first touch electrode 210 and the second touch electrode 220, and two ends of the bridge portion 230 are respectively connected to the first touch electrodes 210 at two sides of the fracture through the two through holes 241. The bridge points D are arranged at intervals (in the figure, the first touch electrode is marked transversely, the second touch electrode is marked longitudinally, the two touch electrodes are arranged in the same layer, and the filling of different colors is only used for distinguishing the positions of the schematic bridge points), and the intervals of the bridge points are about 4mm.
In this embodiment, the insulating layer 240 is a black light shielding layer, which can shield and cover the metal electrode while playing an insulating role, reduce the reflection of the metal electrode to light, and further absorb part of external ambient light entering the display panel, further reduce the intensity of the outgoing reflected light, and improve the contrast of the display panel.
In an embodiment, the touch layer specifically includes a first touch metal layer close to the light emitting display layer and a second touch metal layer far from the light emitting display layer. The bridging part is positioned on the first touch metal layer, and the first touch electrode and the second touch electrode are positioned on the second touch metal layer; the first touch electrode and the second touch electrode may be located on the first touch metal layer, and the bridge portion may be located on the second touch metal layer. The orthographic projections of the bridging part, the first touch electrode and the second touch electrode on the luminous display layer are not overlapped with the luminous device, so that the light rays are prevented from being emitted, and the display effect is prevented from being influenced. The insulating layer should cover and wrap the first touch electrode, the second touch electrode or the bridging portion completely to avoid short circuit between metals. The structure formed by the method can be that a groove is formed on one side of the insulating layer, which is opposite to the first touch electrode and the second touch electrode, the bridging part is filled in the groove, and the surface of the bridging part is flush with the insulating layer.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a partial area of the touch display panel in the direction C-C' in fig. 1. In this embodiment, the touch display panel further includes a plurality of polarizing portions 30 stacked with the light emitting display layer 10 and disposed in the same layer as the touch layer 20. The plurality of polarizing portions 30 correspond to the plurality of light emitting devices 110, respectively, and the polarizing portions 30 allow the light to pass through in the same color as the light emitting color of the corresponding light emitting device 110. The polarization part is arranged to prevent external environment light from entering the display panel, so that the external environment light is reduced from entering the display panel; meanwhile, the polarized light part only allows light with the same color as the light emitting device to pass through, so that even if external environment light enters the display panel, only part of light reflected by the polarized light part can pass through, the reflected light can be reduced, and the contrast ratio is improved.
In this embodiment, the polarizing portion 30 and the touch layer 20 are arranged in the same layer, that is, the polarizing portion 30 is arranged inside the touch layer 20, and specifically, the polarizing portion 30 may be arranged in a space of an insulating layer. The polarizer layer is not required to be arranged separately, and the thickness of the display panel can be reduced. On the other hand, the polarizing part in the embodiment is a plurality of small blocks which are arranged corresponding to the array of the light emitting devices, and compared with the whole polarizer in the prior art, the bending resistance of the display panel can be improved.
With continued reference to fig. 3, the touch display panel further includes a planarization layer 40 stacked with the light-emitting display layer 10, where the planarization layer 40 covers the touch layer 20 and the plurality of polarizing portions 30.
The planarization layer 40 may not only serve as a planarization layer, but also serve as a protective layer for the touch layer 20 and the plurality of polarizing portions 30, and protect the touch layer 20 and the polarizing portions 30. It is no longer necessary to separately provide the touch layer 20 and the polarizing portion 30 with protective layers, and the thickness of the display panel is further reduced.
In one embodiment, the material of the planarization layer 40 is a transparent polymer material, such as a transparent photoresist OC, a silicon-based polymer transparent material, an acryl-based polymer transparent material, and the like. Specifically, acetic acid-1-methoxy-2-propyl ester, dimethyl-methyl-phenethyl (siloxane and polysiloxane), 2- [ [3- [ (allyloxy) oxy ] -2, 2-bis [ [ (allyloxy) oxy ] methyl ] propoxy ] methyl ] -2- [ [ [ (allyloxy) oxy ] -1, 3-propanediol diacrylate.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a touch metal layer in a touch display panel according to an embodiment of the disclosure. In this embodiment, at least one of the first touch electrode, the second touch electrode, and the bridge portion includes an antireflection metal layer 51, a second metal layer 52, a touch metal layer 53, and a third metal layer 54, which are sequentially stacked.
The metal layer material is not only opaque, but also reflects light under the irradiation of external environment light, so that the metal grid is easily found by naked eyes, and the display effect of the touch screen is affected. In the traditional process, the reflection phenomenon of the metal grid is often reduced by adopting a blackening target material mode, however, the blackening target material has high cost, so that the product cost is increased. The metal layer is processed, the anti-reflection layer is added, and reflection of the metal layer can be reduced.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a touch metal layer in a touch display panel according to another embodiment of the present disclosure. In this embodiment, the antireflection metal layer 51 includes two first metal layers 511 and 512 provided in a stacked manner, and the refractive indices of the two first metal layers 511 and 512 are different. Wherein the refractive index of the first metal layer 512 on the side close to the light emitting display layer is smaller than the refractive index of the first metal layer 511 on the side far from the light emitting display layer 10. The reflectivity of the anti-reflection metal layer can be reduced by matching the first metal layers with different refractive indexes, so that the anti-reflection effect is achieved.
In an embodiment, the material of the first metal layer may be molybdenum oxide (MoO) or molybdenum niobium oxide (MoNbO), and the refractive index of the material can be adjusted by adjusting the oxygen content in MoO and MoNbO. The material of the second metal layer and the third metal layer can be molybdenum (Mo) or molybdenum-niobium alloy (MoNb). The material of the touch metal layer may be aluminum (Al) or aluminum neodymium (AlNd).
Referring to fig. 6, fig. 6 is a flow chart illustrating a method for manufacturing a touch display panel according to an embodiment of the disclosure. In this embodiment, the method for manufacturing a touch display panel includes:
s610: and forming a first touch metal layer on the luminous display layer, and patterning the first touch metal layer to form a touch electrode/bridging part.
The bridge portion can be selectively manufactured on the touch electrode near one side of the light-emitting display layer according to the design of the display panel.
S620: and forming an insulating layer on the first touch metal layer by using the black shading material, and forming a via hole on the insulating layer.
The black light shielding material may be an opaque organic material, such as black resist, black pigment-doped acrylate, black pigment-doped polyimide, or the like, and is not limited herein.
S630: and forming a second touch metal layer on the insulating layer, and patterning the second touch metal layer to form a bridging part/touch electrode.
Referring to fig. 7-12 in combination, in this embodiment, the method for manufacturing the touch display panel includes:
referring to fig. 7, fig. 7 is a schematic diagram of a display substrate provided in a method for manufacturing a touch display panel according to another embodiment of the disclosure. In this embodiment, the light emitting display layer 10 is a pre-prepared display substrate, and the display substrate includes an array substrate, and the light emitting device 110 is disposed on the array substrate, and covers the encapsulation layer of the light emitting device. The array substrate comprises a substrate base plate and a pixel circuit array; the light emitting device includes an anode layer, an organic light emitting layer, a cathode layer, and the like; the packaging layer comprises an inorganic film packaging layer and an organic film packaging layer which are stacked. The display substrate 10 may be a flexible substrate.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a bridge portion formed in a method for manufacturing a touch display panel according to another embodiment of the disclosure. A first touch metal layer is formed on the light emitting display layer 10. Specifically, a third metal layer, a touch metal layer, a second metal layer, a first metal layer and a second metal layer are sequentially deposited and sputtered to form the touch metal layer. The metal layer may be deposited using Chemical Vapor Deposition (CVD), physical Vapor Deposition (PVD), atomic Layer Deposition (ALD), or the like. The patterned first touch metal layer forms the bridge portion 230.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating an insulating layer formed in a method for manufacturing a touch display panel according to another embodiment of the disclosure. An insulating layer 240 is formed on the bridge 230, and a via 241 is etched on the insulating layer 240.
Referring to fig. 10, fig. 10 is a schematic diagram illustrating a polarized portion formed in a method for manufacturing a touch display panel according to another embodiment of the disclosure. A plurality of polarizing portions are sequentially formed in the light-emitting display layer 10 in the region corresponding to the light-emitting device.
Specifically, a first polarizing layer may be formed on the light emitting display layer 10, and the first polarizing layer is patterned to form a first polarizing portion 301, where the first polarizing portion 301 corresponds to the first light emitting device; and forming a second polarized layer on the luminous display layer, patterning the second polarized layer to form a second polarized part 302, wherein the second polarized part 302 corresponds to the second luminous device. The material forming the polarizing portion may be polyvinyl alcohol, a liquid crystal material, or the like.
Referring to fig. 11, fig. 11 is a schematic diagram illustrating formation of a touch electrode in a method for manufacturing a touch display panel according to another embodiment of the disclosure. A second touch metal layer is formed on the light emitting display layer 10, and the second touch metal layer is patterned to form a first touch electrode (not shown) and a second touch electrode 220. Likewise, the second touch metal layer is also composed of multiple metal layers.
Referring to fig. 12, fig. 12 is a schematic diagram illustrating a planarization layer formed in a method for manufacturing a touch display panel according to another embodiment of the disclosure. A planarization layer 40 is formed on the light emitting display layer 10 to cover the protective touch layer and the polarizing portion 30.
Above scheme, the touch display panel that obtains can reduce outside environment light and get into inside the display panel through setting up polarizing part to can prevent outside environment light reflection to the display panel that gets into inside the display panel, reduce reflected light, through setting up polarizing part and touch layer homolayer, can attenuate display panel's thickness. The insulating layer is made of black shading materials, so that part of external environment light can be absorbed, and the contrast ratio is improved. Meanwhile, the insulating layer and the protective layer do not need to be prepared independently, the preparation process flow can be saved, and only 6 Mask processes are needed.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.
Claims (8)
1. A touch display panel, comprising:
a light emitting display layer including a plurality of light emitting devices arranged in an array;
the touch control layer comprises a bridging part, a first touch control electrode, a second touch control electrode and an insulating layer positioned between the first touch control electrode, the second touch control electrode and the bridging part;
the light emitting devices are arranged on the same layer as the touch control layer, the light emitting devices are respectively corresponding to the light emitting portions, the light transmitting portions allow the light to pass through and have the same light emitting color as the corresponding light emitting devices, and the light transmitting portions are arranged in the interval of the insulating layer;
the first touch electrodes and the second touch electrodes are arranged in a staggered mode, and the first touch electrodes are provided with fractures at the staggered positions so that the second touch electrodes can pass through the fractures; the insulating layer is a black shading layer, and two through holes are formed in the insulating layer at two sides corresponding to the fracture; the bridging part is positioned at one side of the insulating layer opposite to the first touch electrode and the second touch electrode and is arranged corresponding to the fracture position, and two ends of the bridging part are respectively connected with the first touch electrodes at two sides of the fracture through the two through holes.
2. The touch display panel of claim 1, wherein,
the insulating layer is opposite to the first touch electrode and one side of the second touch electrode is provided with a groove, the bridging part is filled in the groove, and the surface of the bridging part is flush with the insulating layer.
3. The touch display panel of claim 1, further comprising:
and the flattening layer is laminated with the light-emitting display layer and covers the touch control layer and the polarizing parts, wherein the flattening layer is made of a transparent polymer material.
4. The touch display panel of claim 1, wherein,
at least one of the first touch electrode, the second touch electrode and the bridging part comprises an antireflection metal layer, a second metal layer, a touch metal layer and a third metal layer which are sequentially stacked.
5. The touch display panel of claim 4, wherein the anti-reflective metal layer comprises two first metal layers stacked.
6. The touch display panel of claim 5, wherein,
the refractive index of the first metal layer near the light-emitting display layer side is smaller than that of the first metal layer far away from the light-emitting display layer side.
7. The touch display panel of claim 5, wherein,
the material of the first metal layer is molybdenum oxide or molybdenum niobium oxide;
the material of the second metal layer and the third metal layer is molybdenum or molybdenum-niobium alloy;
the touch metal layer is made of aluminum or aluminum neodymium alloy.
8. A method for manufacturing a touch display panel according to any one of claims 1 to 7, comprising:
forming a first touch metal layer on the luminous display layer, and patterning the first touch metal layer to form a touch electrode/bridging part;
forming an insulating layer on the first touch metal layer by using a black shading material, and forming a via hole on the insulating layer;
forming a first polarized layer on the luminous display layer, patterning the first polarized layer to form a first polarized part, wherein the first polarized part corresponds to a first luminous device;
forming a second polarized layer on the luminous display layer, patterning the second polarized layer to form a second polarized part, wherein the second polarized part corresponds to a second luminous device;
forming a third polarized layer on the luminous display layer, patterning the third polarized layer to form a third polarized part, wherein the third polarized part corresponds to a third luminous device;
and forming a second touch metal layer on the insulating layer, and patterning the second touch metal layer to form a bridging part/touch electrode.
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| CN111580695B (en) * | 2020-04-29 | 2023-07-04 | 上海天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN111584561B (en) * | 2020-05-08 | 2023-03-24 | 武汉华星光电半导体显示技术有限公司 | Touch screen and electronic device |
| CN111584594B (en) * | 2020-05-25 | 2022-12-09 | 京东方科技集团股份有限公司 | Display panel, display device and manufacturing method thereof |
| CN111651088B (en) * | 2020-06-16 | 2022-08-05 | 武汉华星光电半导体显示技术有限公司 | Touch display panel and manufacturing method thereof |
| CN111722757B (en) * | 2020-07-24 | 2024-03-08 | 京东方科技集团股份有限公司 | Display device and manufacturing method thereof |
| CN112838113B (en) * | 2021-01-22 | 2023-05-09 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN113504850B (en) * | 2021-07-23 | 2023-07-04 | 深圳市华星光电半导体显示技术有限公司 | Polarizer, manufacturing method of polarizer and display panel |
| CN114171571B (en) * | 2021-12-08 | 2023-12-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
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