CN109254703A - A kind of thickness cover board capacitive touch screen - Google Patents
A kind of thickness cover board capacitive touch screen Download PDFInfo
- Publication number
- CN109254703A CN109254703A CN201811440294.4A CN201811440294A CN109254703A CN 109254703 A CN109254703 A CN 109254703A CN 201811440294 A CN201811440294 A CN 201811440294A CN 109254703 A CN109254703 A CN 109254703A
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- Prior art keywords
- cover board
- touch screen
- thickness
- board
- capacitive touch
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- 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.)
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- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims abstract description 17
- 229920003023 plastic Polymers 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001821 foam rubber Polymers 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 12
- 239000004417 polycarbonate Substances 0.000 description 7
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- VCBXDRSAMODZME-UHFFFAOYSA-N [Sn+2]=O.[In+3].[O-2].[In+3].[Sn+4].[O-2].[O-2].[O-2].[O-2].[O-2] Chemical compound [Sn+2]=O.[In+3].[O-2].[In+3].[Sn+4].[O-2].[O-2].[O-2].[O-2].[O-2] VCBXDRSAMODZME-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of thick cover board capacitive touch screen.The thickness cover board capacitive touch screen includes cover board, optical adhesive layer, functional sheet and integrated circuit flexible circuit board, position of the optical adhesive layer between the functional sheet and cover board is fixed, after the integrated circuit flexible circuit board and functional sheet binding, it is bonded by the optical adhesive layer with the cover board；The cover board is one of glass workpiece, PC plastic part, PMMA acrylic board or plastic-plastic composite materials.Compared with the relevant technologies, thickness cover board capacitive touch screen provided by the invention is using glass workpiece or PC plastic part, PMMA acrylic board or plastic-plastic composite materials production, the material hierarchical structure of optical adhesive layer, functional sheet and integrated circuit flexible circuit board is used simultaneously, so that cover sheet thickness can accomplish 2~8mm, anti-interference ability, waterproof ability are strong, are widely used in the special dimensions such as industry control, household electrical appliances, medical treatment, military project.
Description
Technical field
The present invention relates to touch screen technology field more particularly to a kind of thick cover board capacitive touch screens.
Background technique
With the development of electronic product, touch screen is widely used on mobile phone, tablet computer.The existing touching of existing market
Screen is touched, the problem of cover board is because of material type selecting, thickness is mostly 2mm hereinafter, can seldom accomplish 2mm's or more.Because of touch-screen applications
Range is more and more wider, and the requirement to cover sheet thickness is higher and higher, and some specialities then need cover sheet thickness to be used thicker, then
Existing thin cover board is not able to satisfy requirement.
Accordingly, it is desirable to provide a kind of thickness cover board capacitive touch screen solves the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of cover sheet thickness thickness, the thick cover board capacitive touch screen of manual dexterity.
The present invention provides a kind of thick cover board capacitive touch screen, closes on setting with mainboard comprising cover board, optical adhesive layer,
Functional sheet and integrated circuit flexible circuit board, position of the optical adhesive layer between the functional sheet and cover board are fixed, institute
After stating integrated circuit flexible circuit board and functional sheet binding, it is bonded by the optical adhesive layer with the cover board；The lid
Plate is one of glass workpiece, PC plastic part, PMM A acrylic board or plastic-plastic composite materials, the cover board with a thickness of 2~
8mm。
Preferably, the optical adhesive layer be OCA optical cement, LOCA glue, SCA optical cement, COF optical cement, double-sided adhesive or
Any one in foam rubber.
Preferably, the functional sheet is in ITO Film conductive film, ITO Glass electro-conductive glass, graphene or nano silver
Any one.
Preferably, the integrated circuit flexible circuit board includes that touch screen FPC and touch-control IC, the touch-control IC are set to described
On touch screen FPC or set on the mainboard.
Preferably, the cover board is top layer, and the functional sheet is bottom.
Preferably, institute's cover board is glass workpiece, with a thickness of 2~8mm.
Preferably, the cover board is any one in PC plastic part, PMMA acrylic board or plastic-plastic composite materials, thick
Degree is 2~5mm.
Compared with the relevant technologies, the cover board of thickness cover board capacitive touch screen provided by the present invention is moulded using glass workpiece or PC
Materials and parts, PMM A acrylic board or plastic-plastic composite materials production, while using optical adhesive layer, functional sheet and integrated circuit flexible electrical
The material hierarchical structure of road plate, so that cover sheet thickness can accomplish 2~8mm, anti-interference ability, waterproof ability are strong, are widely used in
The special dimensions such as industry control, household electrical appliances, medical treatment, military project.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of thick cover board capacitive touch screen provided by the invention.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.For sake of convenience, hereinafter as occurred
"upper", "lower", "left", "right" printed words only indicate consistent with the upper and lower, left and right direction of attached drawing itself, do not play limit to structure
It is set for using.
Embodiment one
As shown in Figure 1, thickness cover board capacitive touch screen provided in this embodiment closes on mainboard setting (not shown) comprising
Cover board 1, optical adhesive layer 2, functional sheet 3 and integrated circuit flexible circuit board 4.
The cover board 1 is glass workpiece, with a thickness of 2~8mm.
The optical adhesive layer 2 is OCA optical cement, LOCA glue, SCA optical cement, COF optical cement, double-sided adhesive or foam rubber
Any one in (frame sticking structure).Position of the optical adhesive layer 2 between the functional sheet 3 and cover board 1 is fixed.It is described
Cover board 1 is top layer, and the functional sheet 3 is bottom.
OCA (Optically Clear Adhesive) optical cement, colorless and transparent, light transmission rate 90% or more, it is cementing
Intensity is good, can solidify under room temperature or medium temperature, and have the features such as cure shrinkage is small.OCA optical cement is the original of important touch screen
One of material.It is that optics acrylic glue is made into no substrate, then in upper and lower bottom, then respectively one layer of release film of fitting, it is one
Two-sided fitting adhesive tape of the kind without basis material.
LOCA (Liquid Optical Clear Adhesive) Liquid optical clear adhesive, be it is a be mainly used for it is transparent
The special adhesive of optical element bonding.LOCA is colorless and transparent, and 98% or more light transmittance, adhesive strength is good, can room temperature or in
Solidify under the conditions of temperature.And there is the features such as cure shrinkage is small, color inhibition simultaneously.Compared with traditional OCA adhesive tape, LOCA is at certain
A little application fields have special advantage, can solve the limitation that OCA adhesive tape is faced.
COF optical cement (thermoplastic-Clear Optical Film) i.e. thermoplastic optical hyaline membrane；It is one
Kind Optical transparent adhesive, main component is acrylic resin.COF optical cement is the preferred material that touch screen is bonded entirely, is had superior
Translucency, clarity, cementability, the superior heat-resisting weatherability of moisture-proof, especially have excellent antidetonation and the capability of antidetonance, greatly
Ground improves safety, reliability, durability and the aesthetics of touch screen entirety.COF optical cement is particularly suitable for middle large scale
TP fitting and plate, computer, liquid crystal display, all-in-one machine, vehicle mounted guidance etc. full fitting field.
SCA optical cement (Solid Optically Clear Adhesive) is a kind of Optical transparent adhesive, and main component is
Acrylic resin.It especially has excellent with superior translucency, clarity, cementability, the superior heat-resisting weatherability of moisture-proof
Antidetonation and the capability of antidetonance, significantly improve safety, reliability, durability and the aesthetics of touch screen entirety.
SCA optical cement is particularly suitable for the fitting field of cover sheet thickness thickness, can show for touch screen and provide perfect vision
Effect.
The double-sided adhesive or foam rubber are that frame pastes form.
The functional sheet 3 is Sensor, is the electric signal function layer of capacitance plate, can be monolayer material composition, can also
To be the composite structure of multilayer material formation, it is commonly called as " functional layer ".The functional sheet 3 is that the functional sheet is that ITO Film is led
Any one in electrolemma, ITO Glass electro-conductive glass, graphene or nano silver, and can be used and can reach equal performance
Conductive membrane material and electro-conductive glass.
The major parameter of ITO (Indium-Tin Oxide tin indium oxide) Film conductive film has: sheet resistance, sheet resistance
Uniformity, light transmittance, thermal stability, heat shrink rate, heating curling etc..Wherein light transmission rate is mainly and used in ito film
Base material is related with the sheet resistance of ito film.In the identical situation of base material, the sheet resistance of ito film is smaller, ITO
The thickness of film layer is bigger, and light transmission rate has a degree of reduction accordingly.
ITO Glass electro-conductive glass, i.e. tin indium oxide (Indium-Tin Oxide) transparent functional sheet glass, multi-pass mistake
ITO functional sheet glass production line, using plane magnetic control technology, sputters in the power house environment of high purification on ultra-thin glass
Tin indium oxide conductive film coating and the high-tech product obtained through the high temperature anneal.It is widely used for liquid crystal display
(LCD), solar battery, microelectronics ITO function sheet glass, photoelectron and various optical fields.
With advances in technology with the market pressure of ITO raw material, more and more new materials are developed, for generation
The ito film and ito glass of same performance are made into for ITO.For replacing the transparent conductive material of ITO by following several: metal mesh
Grid Metal Mesh；Conducting polymer；Nano silver；Graphene.
The integrated circuit flexible circuit board 4 includes touch screen FPC (not shown) and touch-control IC (not shown), the touch-control
IC is set on the touch screen FPC and is made into COF structure, or COB structure is done on the mainboard.
COF (Chip on Film Chinese is that crystal grain mantle structure fills technology), structure is similar to lamina FPC, has
Light weight, high resolution, flexibility are good, chip package density is high, support the features such as reprocessing, and more adaptation electronic component volume becomes
The development need that small, cover sheet thickness thickens, interconnection density is high is the following important High Density Packaging Technology.Touch-control IC is fixed in
After being made into COF structure on the touch screen FPC, thickness and flexility are much better than FPC (Flexible Printed Circuit
Flexible circuit board).
COB (encapsulation of chip-on-board chip on board), touch-control IC is directly encapsulated on mainboard, epoxy is then used
Resin glue package curing has the good characteristics such as ultra-thin, anticollision resistance to compression, big visual angle, flexible.
Embodiment two
In the present embodiment, the thick cover board capacitive touch screen includes cover board, optical adhesive layer, functional sheet and integrated circuit
Flexible circuit board.
The cover board is PC plastic part or PMMA acrylic board or plastic-plastic composite materials, with a thickness of 2~5mm.
PC (Polycarbonate polycarbonate) has excellent physical mechanical property, especially excellent impact resistance,
Tensile strength, bending strength, compressive strength are high；Creep properties is small, dimensionally stable；With good heat resistance and lower temperature resistance,
There is stable mechanical property, dimensional stability, electrical property and anti-flammability in wider temperature range, it can be at 60~120 DEG C
It is used for a long time；It is in molten condition at 220-230 DEG C without sharp melting point；Since molecule chain rigidity is big, resin melt viscosity is big；It inhales
Water rate is small, and shrinking percentage is small, and dimensional accuracy is high, good stability of the dimension.
PMMA (Polymeric Methyl Methacrylate polymethylmethacrylasheet sheet material) i.e. acrylic board is
It is a kind of to develop important plastic macromolecule material earlier, there is the preferable transparency, chemical stability and weatherability, easily contaminate
Color, easy processing, attractive appearance, with the transparency as crystal, light transmittance is 92% or more, and light is soft, optical clarity.Have
The good characteristics such as splendid weatherability, higher surface hardness and lustrous surface, and preferable high-temperature behavior.
Plastic-plastic composite materials are most common a kind of composite materials, and various plastic films have respective merits and demerits, will
After they are compound, new material has the advantageous properties such as oil resistivity, moisture resistance, heat sealability simultaneously.After modeling modeling is compound, two can be formed
Layer, three layers, the composite materials such as four layers, such as: PC-PMMA, OPP-PE, BOPET-PP-PE, PT-PE-EVOH-PE.
In the present embodiment, the optical adhesive layer, the structure of functional sheet and integrated circuit flexible circuit board, characteristic and connection
Relationship is the same as example 1.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of thickness cover board capacitive touch screen, closes on setting with mainboard, which is characterized in that it includes cover board, optical adhesive layer, function
Energy piece and integrated circuit flexible circuit board, position of the optical adhesive layer between the functional sheet and cover board is fixed, described
After integrated circuit flexible circuit board and functional sheet binding, it is bonded by the optical adhesive layer with the cover board；The cover board
For one of glass workpiece, PC plastic part, PMM A acrylic board or plastic-plastic composite materials, the cover board with a thickness of 2~8mm.
2. thickness cover board capacitive touch screen according to claim 1, which is characterized in that the optical adhesive layer is OCA optics
Any one in glue, LOCA glue, SCA optical cement, COF optical cement, double-sided adhesive or foam rubber.
3. thickness cover board capacitive touch screen according to claim 1, which is characterized in that the functional sheet is that ITO Film is led
Any one in electrolemma, ITO Glass electro-conductive glass, graphene or nano silver.
4. thickness cover board capacitive touch screen according to claim 1, which is characterized in that the integrated circuit flexible circuit board
The mainboard is set on the touch screen FPC or is set to including touch screen FPC and touch-control IC, the touch-control IC.
5. thickness cover board capacitive touch screen according to claim 1, which is characterized in that the cover board is top layer, the function
Energy piece is bottom.
6. described in any item thick cover board capacitive touch screens according to claim 1~5, which is characterized in that institute's cover board is glass
Part, with a thickness of 2~8mm.
7. piece described in any item according to claim 1~5 thick cover board capacitive touch screens, which is characterized in that the cover board is
Any one in PC plastic part, PMMA acrylic board or plastic-plastic composite materials, with a thickness of 2~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440294.4A CN109254703A (en) | 2018-11-28 | 2018-11-28 | A kind of thickness cover board capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440294.4A CN109254703A (en) | 2018-11-28 | 2018-11-28 | A kind of thickness cover board capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109254703A true CN109254703A (en) | 2019-01-22 |
Family
ID=65042303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440294.4A Pending CN109254703A (en) | 2018-11-28 | 2018-11-28 | A kind of thickness cover board capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109254703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965861A (en) * | 2020-08-14 | 2020-11-20 | 深圳市灵触科技有限公司 | TFT frame pasting device and method with touch function |
| CN112783374A (en) * | 2021-02-06 | 2021-05-11 | 华田信科（廊坊）电子科技有限公司 | Touch display panel with ultra-thick cover plate and test method thereof |
| CN117970684A (en) * | 2024-03-28 | 2024-05-03 | 淄博松柏电子科技有限公司 | Method for preparing on-cell touch control by using substrate-free metal grid |
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| CN102629177A (en) * | 2012-03-30 | 2012-08-08 | 敦泰科技有限公司 | Capacitive touch screen and manufacture method thereof |
| CN203644006U (en) * | 2013-12-19 | 2014-06-11 | 东莞市飞触光电科技有限公司 | Embedded capacitive touch screen |
| CN105446568A (en) * | 2015-12-31 | 2016-03-30 | 南京华睿川电子科技有限公司 | Capacitive touch screen on flexible printed circuit board with reflection coating |
| CN208954075U (en) * | 2018-11-28 | 2019-06-07 | 深圳市灵触科技有限公司 | A kind of thickness cover board capacitive touch screen |
| CN219285713U (en) * | 2023-02-17 | 2023-06-30 | 广东泰奇克光电科技有限公司 | Explosion-proof capacitive touch screen |
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|---|---|---|---|---|
| CN102629177A (en) * | 2012-03-30 | 2012-08-08 | 敦泰科技有限公司 | Capacitive touch screen and manufacture method thereof |
| CN203644006U (en) * | 2013-12-19 | 2014-06-11 | 东莞市飞触光电科技有限公司 | Embedded capacitive touch screen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965861A (en) * | 2020-08-14 | 2020-11-20 | 深圳市灵触科技有限公司 | TFT frame pasting device and method with touch function |
| CN111965861B (en) * | 2020-08-14 | 2021-06-11 | 深圳市灵触科技有限公司 | TFT liquid crystal screen frame pasting device and method with touch function |
| CN112783374A (en) * | 2021-02-06 | 2021-05-11 | 华田信科（廊坊）电子科技有限公司 | Touch display panel with ultra-thick cover plate and test method thereof |
| CN112783374B (en) * | 2021-02-06 | 2023-03-28 | 华田信科（廊坊）电子科技有限公司 | Touch display panel with ultra-thick cover plate and test method thereof |
| CN117970684A (en) * | 2024-03-28 | 2024-05-03 | 淄博松柏电子科技有限公司 | Method for preparing on-cell touch control by using substrate-free metal grid |
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Application publication date: 20190122 |