WO2021052476A1 - 触摸屏、显示面板及汽车诊断设备 - Google Patents

触摸屏、显示面板及汽车诊断设备 Download PDF

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Publication number
WO2021052476A1
WO2021052476A1 PCT/CN2020/116256 CN2020116256W WO2021052476A1 WO 2021052476 A1 WO2021052476 A1 WO 2021052476A1 CN 2020116256 W CN2020116256 W CN 2020116256W WO 2021052476 A1 WO2021052476 A1 WO 2021052476A1
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WO
WIPO (PCT)
Prior art keywords
layer
touch screen
grounding portion
touch
circuit board
Prior art date
Application number
PCT/CN2020/116256
Other languages
English (en)
French (fr)
Inventor
黄昶
陈华明
Original Assignee
深圳市道通科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市道通科技股份有限公司 filed Critical 深圳市道通科技股份有限公司
Publication of WO2021052476A1 publication Critical patent/WO2021052476A1/zh
Priority to US17/655,481 priority Critical patent/US11874989B2/en

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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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0215—Grounding of printed circuits by connection to external grounding means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit

Definitions

  • This application relates to the field of display technology, and in particular to a touch screen, a display panel, and automobile diagnostic equipment.
  • car diagnostic tablets are used in a harsher environment. For example, they are often used in high-temperature and high-humidity repair shops, sun exposure or cold weather, and most of the users have their hands on them. There is oil or sweat stains. This requires the functions of the various components of the automotive diagnostic tablet computer to be more stable and reliable to ensure a longer service life. This includes the touch screen that is touched the most when using a tablet.
  • the related technology has at least the following problem: there is no special grounding treatment for the touch screen inside the tablet computer. After the touch screen is used for a long time in the above-mentioned harsh environment, the peripheral wiring is easily short-circuited or burned out by static electricity, causing the touch screen to function abnormally or completely fail.
  • the embodiments of the present invention provide a touch screen, a display panel, and an automobile diagnostic device that prevent burnout due to a short circuit or electrostatic breakdown, and improve anti-static performance.
  • a touch screen the touch screen is applied to an automobile diagnostic equipment
  • the touch screen includes: a touch component, the touch component includes a touch function layer and a flexible circuit Board, the touch function layer is electrically connected to the flexible circuit board, the flexible circuit board is provided with a first grounding portion, and the first grounding portion is electrically connected to the flexible circuit board;
  • the metal bracket is grounded, the metal bracket is provided with a second grounding portion, and the first grounding portion and the second grounding portion are electrically connected.
  • the flexible circuit board includes an extension part that partially extends out of the touch function layer, the extension part is provided with the first grounding part, and the first grounding part is electrically connected to the extension part.
  • the extension portion may be bent toward the position of the second ground portion, so that the first ground portion provided on the extension portion is connected to the second ground portion.
  • the first grounding portion includes a metal sheet and a conductive layer
  • the metal sheet is disposed on the surface of the extension portion
  • one side of the conductive layer is laminated on the surface of the metal sheet
  • the conductive layer The other side is connected to the second ground portion.
  • the first grounding portion further includes an adhesive layer, and the first grounding portion is bonded to the second grounding portion through the adhesive layer.
  • one side of the bonding layer and one side of the conductive layer are both laminated on the same surface of the metal sheet, and the other side of the bonding layer and the other side of the conductive layer are both connected to the first surface.
  • Two ground connection are both required.
  • the surface of the metal sheet away from the extension portion includes a first area and a second area, and the area of the first area and the second area are the same;
  • the adhesive layer is adhered to the first area, and the conductive layer is adhered to the second area.
  • the adhesive layer is a 3M double-sided tape
  • the conductive layer is a conductive double-sided tape.
  • the second grounding portion is in the shape of a boss and is arranged on a side of the metal bracket away from the flexible circuit board.
  • the bosses are processed by laser engraving.
  • the touch function layer includes a cover layer and a sensing layer, and the sensing layer and the touch component are sequentially stacked on the cover layer;
  • the sensing layer includes a first sensing layer and a second sensing layer, the first sensing layer includes a first glass layer and a first conductive film, and the first conductive film is laminated on the first glass layer , Electrode traces are provided on the first conductive film;
  • the second sensing layer includes a second glass layer and a second conductive film, the second conductive film and the second glass layer are sequentially laminated on the surface of the first conductive film away from the first glass layer, Electrode traces are arranged on the second said second conductive film.
  • a sealing structure is provided at the edge between the first sensing layer and the second sensing layer, and a sealing structure is formed between the sealing structure, the first sensing layer and the second sensing layer.
  • the sealed cavity is filled with a sealing material.
  • the display panel includes:
  • the display screen and the touch screen as described above the display screen is laminated between the touch component and the metal bracket.
  • an automobile diagnostic equipment includes:
  • the display panel is arranged in the housing.
  • the touch screen provided in the embodiments of the present invention includes a touch component and a metal bracket, the touch component includes a touch function layer and a flexible circuit board, the touch function layer is electrically connected to the flexible circuit board
  • the flexible circuit board is provided with a first grounding portion, the first grounding portion is electrically connected to the flexible circuit board; the metal bracket is grounded, the metal bracket is provided with a second grounding portion, and the first grounding portion is electrically connected to the flexible circuit board.
  • a grounding part is electrically connected to the second grounding part.
  • the first grounding portion is electrically connected to the flexible circuit board.
  • the grounding part is electrically connected to the second grounding part, thereby realizing the grounding treatment of the touch component, making the peripheral wires not easy to be short-circuited or being burned by static electricity, and improving the antistatic performance of the touch screen.
  • FIG. 1 is a schematic structural diagram of one of the touch screens provided by an embodiment of the present invention, wherein the first ground part of the touch screen is not connected to the second ground part;
  • FIG. 2 is a schematic structural diagram of another touch screen provided by an embodiment of the present invention, in which a first connection part of the touch screen is connected to a second ground part;
  • FIG. 3 is a schematic diagram of the structure of a touch function layer of the touch screen shown in FIG. 1.
  • an embodiment of the present invention provides a touch screen 100, the touch screen is applied to car diagnostic equipment, the touch screen includes a touch component 20 and a metal bracket 40, the touch component 20 is installed and fixed to the metal bracket 40, and the metal bracket 40 contacts the external environment to realize the grounding treatment of the metal bracket 40.
  • the touch screen 100 is used as a diagnostic touch screen, because the user holds the metal bracket 40 The metal bracket 40 contacts the human body, so that the metal bracket 40 is grounded through the human body.
  • the touch component 20 includes a touch function layer 22 and a flexible circuit board 24, and the touch function layer 22 is electrically connected to the flexible circuit board 24.
  • the touch function layer 22 includes a cover layer 222 and a sensing layer 224, and the sensing layer 224 and the flexible circuit board 24 are sequentially stacked on the cover layer 222.
  • the cover layer 222 is adhered to the sensing layer 224 through an adhesive layer, which protects the sensing layer 224 and prevents the sensing layer 224 from being scratched.
  • the adhesive layer may be an optically transparent adhesive layer (OCA).
  • the cover layer 222 includes an ultra-thin glass layer 2222 and a substrate 2224.
  • the substrate 2224 is formed on the ultra-thin glass layer 2222.
  • the ultra-thin glass layer 2222 is bendable; The ultra-thin characteristics of the thin glass layer 2222 make it have good bending characteristics. On the basis of good bendability, the ultra-thin glass layer 2222 can have higher hardness and/or rigidity to meet the requirements of falling resistance. And restorability.
  • the base material 2224 is used to increase the hardness of the cover layer 222. Since the substrate 2224 is formed on the ultra-thin glass layer 2222 and is facing the user, the substrate 2224 can have the characteristics of scratch resistance and wear resistance while having a preset hardness. Furthermore, when the material of the base material 2224 is an organic material, the base material 2224 is provided with bending characteristics, which can further improve the bendability of the cover layer 222.
  • the substrate 2224 may also be a glass substrate 2224 with a 2D, 2.5D, or 3D structure.
  • the 2D structure refers to a pure plane.
  • the glass of this structure is basically flat, and all points on the glass are on the same plane.
  • the 2.5D glass screen means that although the middle area is a flat surface like a general 2D glass screen, the 2.5D glass uses a curved surface at the edge, that is, the edge is curved on the basis of the flat glass.
  • the 3D structural glass refers to glass with a larger curvature of the screen.
  • the display panel and other mobile car diagnostic equipment using 3D glass not only use a curved surface design, but also a 3D screen with a curvature on the touch screen 100.
  • an isolation layer is formed by coating the surface of the substrate 2224, and then a photocatalyst layer is formed by coating the isolation layer again. The photocatalyst layer can generate superoxide radicals under light irradiation.
  • the superoxide radicals generated by the photocatalyst under light irradiation can effectively remove harmful substances such as bacteria on the surface of the touch screen 100 and in the grooves of the surrounding decorative ring, which solves the problem of the current touch screen 100 It is easy to accumulate bacteria after long-term use, and it is difficult to clean.
  • the cover layer 222 has good bending characteristics.
  • the base material 2224 does not affect the bending characteristics of the cover layer 222 while improving
  • the cover layer 222 which is composed of the ultra-thin glass layer 2222 and the base material 2224, not only has good bending characteristics, but also has the characteristics of hardness, drop resistance, etc., which satisfies The requirements for the cover layer 222 in the flexible display screen are met.
  • the cover plate layer composed of the ultra-thin glass layer 2222 and the base material 2224
  • the thickness of 222 ranges from 10 ⁇ m to 200 ⁇ m.
  • the thickness of the cover layer 222 ranges from 40 ⁇ m to 100 ⁇ m.
  • the ultra-thin glass layer 2222 may be alkali-containing ultra-thin glass and alkali-free ultra-thin glass.
  • the alkali-containing ultra-thin glass may be soda lime silicate glass or aluminosilicate glass.
  • the alkali-free ultra-thin glass may be borate glass.
  • the ultra-thin glass layer 2222 is thinned (etched) and strengthened (ion exchange) to meet the requirements of ultra-thin characteristics.
  • the thickness of the ultra-thin glass layer 2222 may range from 10 ⁇ m to 100 ⁇ m.
  • the ultra-thin glass ranges from 50 ⁇ m to 75 ⁇ m.
  • the ultra-thin glass layer 2222 in order to make the ultra-thin glass layer 2222 on the basis of bendability, it may have higher hardness and/or rigidity at the same time, so as to meet the characteristics of drop resistance and recovery.
  • the surface hardness of the ultra-thin glass layer 2222 ranges from 3H to 9H.
  • the surface hardness of the ultra-thin glass layer 2222 ranges from 4H to 7H.
  • the Young's modulus (E ) Ranges from 10 GPa to 100 GPa.
  • the Young's modulus (E) of the ultra-thin glass layer 2222 ranges from 50 Gpa to 80 Gpa, and the surface flatness of the ultra-thin glass layer 2222 is not greater than 10 nm.
  • the sensing layer 224 includes a first sensing layer 2242 and a second sensing layer 2244.
  • the first sensing layer 2242 includes a first glass layer 22422 and a first conductive film 22424.
  • the first conductive film 22424 is laminated On the first glass layer 22422, electrode traces are provided on the first conductive film 22424.
  • the second sensing layer 2244 includes a second glass layer 22442 and a second conductive film 22444.
  • the second conductive film 22444 and the second glass layer 22442 are sequentially laminated on the first conductive film 22424 away from the first conductive film 22444.
  • electrode traces are provided on the second second conductive film 22444. Since the first conductive film 22424 and the second conductive film 22444 are both located between the first glass layer 22422 and the second glass layer 22442, they can be isolated from the influence of the external environment, so that the first conductive film 22424 and the second conductive film 22424 can be The film 22444 can be effectively protected, and the reliability of the touch screen 100 can be effectively improved.
  • the first conductive film 22424 and the second conductive film 22444 are indium tin oxide semiconductor transparent conductive films.
  • the first conductive film 22424 and the second conductive film 22444 may also be Other transparent conductive oxide materials are used, for example, indium tin oxide (ISO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ISZO), etc.
  • a sealing structure is provided at the edge between the first sensing layer 2242 and the second sensing layer 2244, and the sealing structure, the first sensing layer 2242, and the second sensing layer 2244 are provided with a sealing structure.
  • a sealed cavity is formed between the sensing layers 2244, and the sealed cavity is filled with a sealing material.
  • the gap at the edge between the first sensing layer 2242 and the second sensing layer 2244 is formed by silk-screened epoxy resin to form the sealing structure.
  • the sealing material is a water glue layer
  • the water glue layer is filled in the sealed cavity
  • the water glue layer fills the sealed cavity
  • the first sensing layer 2242 is in contact with
  • the second sensing layer 2244 is bonded together by a water glue layer.
  • the sensing layer 224 forms a whole without voids, so that the first conductive film 22424 and the second conductive film 22444 between the first glass layer 22422 and the second glass layer 22442 can be completely isolated from the air. Prevent the first conductive film 22424 and the second conductive film 22444 from being corroded by air.
  • the flexible circuit board 24 includes at least one welding area connected with external components and a connection area connected with the welding area, and the welding area is used for welding with a high-speed packaging substrate.
  • the welding area includes a first layer welding area, a second layer welding area, and a third layer welding area that are sequentially stacked.
  • the first layer of bonding area includes the first high speed pad and the first signal reference ground pad
  • the second layer of bonding area includes the second signal reference ground pad
  • the third layer of bonding area includes the third high speed pad and the third signal reference. Ground pad.
  • the first high-speed pad and the third high-speed pad are connected to each other, and the first signal reference ground pad, the second signal reference ground pad, and the third signal reference ground pad are connected to each other.
  • the connection area includes a first connection line layer and a second connection line layer that are stacked.
  • the first connection line layer includes a first signal transmission connection line and a first signal reference ground connection line
  • the second layer connection area includes a second signal reference ground connection line connected to the first signal reference ground connection line.
  • the first signal transmission connection line is connected to the first high-speed pad
  • the first signal reference ground connection line is connected to the first signal reference ground pad
  • the second signal reference ground connection line is connected to the second signal reference ground pad.
  • the welding area is a three-layer circuit board
  • the connection area is a two-layer circuit board, which can ensure that the flexibility of the flexible circuit board 24 is not affected.
  • the flexible circuit board 24 is provided with a first grounding portion 26, and the first grounding portion 26 is connected to the flexible circuit board. 24 is electrically connected, and a second grounding portion 42 is provided on the metal bracket 40, and the first grounding portion 26 and the second grounding portion 42 are electrically connected, thereby realizing the grounding treatment of the touch component 20, so that
  • the peripheral wiring is not easy to be short-circuited or burned by static electricity, which improves the anti-static performance of the touch screen 100.
  • the flexible circuit board 24 is partially The touch function layer 22 is extended to form an extension portion 242, and the first ground portion 26 is disposed on the extension portion 242, and the first ground portion 26 is electrically connected to the extension portion 242.
  • the extension portion 242 that partially extends out of the touch function layer 22 as a part of the flexible circuit board 24 also has a bending characteristic, so that the extension portion can face the The extension portion 242 can be bent toward the position of the second ground portion 42 so that the first ground portion 26 provided on the extension portion 242 is connected to the second ground portion 42.
  • the second grounding portion 42 is arranged on the side of the metal bracket 40 close to the extension portion.
  • the first ground portion 26 includes a metal sheet (not shown) and a conductive layer 262, the metal sheet is disposed on the surface of the extension portion 242, and one side of the conductive layer 262 is laminated on the surface of the metal sheet , The other side of the conductive layer 262 is connected to the second ground portion 42, so that the second ground portion 42 and the metal sheet are connected through the conductive layer 262, so that the first ground portion 26 and the second ground portion 26 are connected to each other.
  • the electrical connection of the two grounding portions 42 is provided to each other.
  • the conductive layer 262 is a conductive double-sided tape
  • the conductive double-sided tape is preferably a conductive copper foil double-sided tape.
  • the conductive double-sided tape may also be other conductive double-sided tapes, such as conductive aluminum foil double-sided tapes and the like.
  • the metal sheet is a water-absorbent metal sheet, so that the metal sheet can absorb water vapor in the environment, prevent the water vapor from corroding the flexible circuit board 24, and improve the service life of the touch screen 100.
  • the water-absorbent metal sheet is composed of two layers of the first metal sheet and the second metal sheet of the same shape, which overlap each other. A contact area and a gap area are provided between the first metal sheet and the second metal sheet.
  • the contact area of the metal sheet fixes the first metal sheet and the second metal sheet to each other; setting the contact area allows two layers of thinner metal sheets It is tightly adhered to form a metal sheet with a thickness equal to that of a common heat sink from the outside, and obtains the same mechanical strength as a common heat sink of the same thickness without increasing the cost of metal materials.
  • the gap area between the first metal sheet and the second metal sheet forms a fine, open capillary gap.
  • the interstitial area is distributed in a net on the water-absorbing metal sheet, and the shape of the interstitial area is determined by the shape of the contact area.
  • the first metal sheet and the second metal sheet are made of metal material aluminum sheet.
  • the contact area can be formed by physically squeezing metal sheets, spot welding, and adhesive bonding; the distribution shape of the contact area can be obtained by a metal processing mold, and only the shape of the squeeze roller is designed to correspond to the contact area.
  • the shape is obtained by continuous extrusion of two layers of metal sheets through the extrusion roller, which can be suitable for mass production and reduce costs.
  • the metal sheet may also be a steel sheet or the like.
  • the conductive double-sided adhesive has the function of connecting the metal sheet and the metal bracket 40, but because it is doped with conductive materials, its viscosity is poor. Therefore, in order to increase the adhesion between the metal sheet and the second grounding portion 42, the first grounding portion 26 further includes an adhesive layer 264, and the first grounding portion 26 is better connected with the adhesive layer 264.
  • the second ground portion 42 is bonded. It can be understood that one side of the adhesive layer 264 and one side of the conductive layer 262 are both laminated on the same surface of the metal sheet, and the other side of the adhesive layer 264 and the other side of the conductive layer 262 Both are connected to the second ground portion 42.
  • the surface of the metal sheet away from the extension 242 includes a first area and a second area, the first area The area is the same as the second area; the adhesive layer 264 is adhered to the first area, and the conductive layer 262 is adhered to the second area.
  • the adhesive layer 264 is 3M double-sided tape.
  • the 3M double-sided tape can be a PET-based double-sided tape, or other types of 3M double-sided tape, such as a non-woven fabric-based double-sided tape and a substrate-free double-sided tape.
  • the metal bracket 40 is a magnesium alloy bracket or an aluminum alloy bracket or the like.
  • the shape of the metal bracket 40 is the same as the shape of the touch function layer 22 in the touch component 20, for example, the shape of the touch function layer 22 is a square, and the shape of the metal bracket 40 is correspondingly set as a square;
  • the shape of the touch function layer 22 is a circle, and the shape of the metal bracket 40 is correspondingly set to be a circle.
  • a fixing portion 44 is provided on the edge of the metal bracket 40, on the side wall or on the surface away from the flexible circuit board 24, and the fixing portion 44 can fix the metal bracket 40 to the housing. It is understandable that The housing needs to be grounded, and the flexible circuit board 24 is electrically connected to the metal bracket 40 through the first grounding portion 26 and the second grounding portion 42. At the same time, the metal bracket 40 is connected to the grounded housing, thereby realizing the connection.
  • the grounding treatment of the touch component 20 prevents the peripheral wires from being short-circuited or burned out by static electricity, which improves the anti-static performance of the touch screen 100.
  • the fixing portion 44 may be a screw hole.
  • the metal bracket 40 is fixedly connected to the housing by screws or bolts adapted to the screw hole.
  • other fixing methods such as welding, etc., may also be used.
  • the second grounding portion 42 is disposed on the side of the metal bracket 40 away from the flexible circuit board 24, in order to easily adhere the conductive layer 262 and the adhesive layer 264 of the first grounding portion 26 to the
  • the second grounding portion 42 is used to realize the electrical connection between the flexible circuit board 24 and the second grounding portion 42.
  • the second grounding portion 42 is arranged in the shape of a boss, and the conductive layer 262 and the adhesive layer 264 are adhered or attached to the convex surface of the second grounding portion 42.
  • the convex surface of the second grounding portion 42 is subjected to a laser engraving conductive treatment. Specifically, in order to prevent poor conductivity (oxidation or residue) of the convex surface of the second ground portion 42, the convex surface needs to be laser-engraved to remove the surface film or the anode layer. If the second grounding portion 42 is aluminum alloy, the impedance of the convex surface after the laser engraving is less than 1 ohm. If the second grounding portion 42 is magnesium alloy, the impedance of the convex surface after the laser engraving is less than 1 ohm. Less than 2 ohms.
  • An embodiment of the present invention further provides a display panel, the display panel comprising: a display screen and the touch screen 100 in any of the above embodiments, the display screen is laminated on the touch assembly 20 and the metal bracket Between 40.
  • the display screen may be a liquid crystal display (TFT-LCD) or an OLED (Organic Light-Emitting Diode, organic light emitting diode) display.
  • the display screen includes a light-emitting layer and a driving layer, the driving layer is used to drive the light-emitting layer, the driving layer is laminated on the ultra-thin touch structure, and the light-emitting layer is laminated on the driving layer.
  • the light-emitting layer serves as a source of emitted light for generating the emitted light.
  • the light-emitting layer includes an organic functional layer, a cathode and an anode. Wherein, the organic functional layer is stacked between the cathode and the anode to generate the emitted light. Wherein, the organic functional layer is prepared by doping a certain proportion of organic light-emitting material with a host material.
  • the organic light-emitting materials can be selected from organic small molecule materials or organic polymer materials to achieve electroluminescence.
  • the driving layer is disposed on a side surface of the light-emitting layer for driving the light-emitting layer.
  • the structure of the driving layer and how to scan and drive the light-emitting layer to generate the emitted light are existing technical means, and will not be repeated here.
  • An embodiment of the present invention also provides an automobile diagnostic equipment, which includes a housing and the display panel in any of the above embodiments.
  • the present invention provides a touch screen, the touch screen includes a touch component and a metal bracket, the touch component includes a touch function layer and a flexible circuit board, the touch function layer and the flexible circuit
  • the flexible circuit board is electrically connected, the flexible circuit board is provided with a first grounding portion, and the first grounding portion is electrically connected to the flexible circuit board; the metal bracket is grounded, and the metal bracket is provided with a second grounding portion, The first ground portion and the second ground portion are electrically connected.
  • the grounding part is electrically connected to the second grounding part, thereby realizing the grounding treatment of the touch component, making the peripheral wires not easy to be short-circuited or being burned by static electricity, and improving the antistatic performance of the touch screen.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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  • Computer Networks & Wireless Communication (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种触摸屏、显示面板及汽车诊断设备。所述触摸屏（100）应用在汽车诊断设备上，所述触摸屏（100）包括：触控组件（20）和金属支架（40），触控组件（20）包括触摸功能层（22）和柔性电路板（24），触控功能层（22）与柔性电路板（24）电连接，柔性电路板（24）设置有第一接地部（26），第一接地部（26）与柔性电路板（24）电连接；金属支架（40）进行接地处理，金属支架（40）设置有第二接地部（42），第一接地部（26）和第二接地部（42）电连接。通过在柔性电路板（24）上设置有第一接地部（26），并使第一接地部（26）与柔性电路板（24）电连接，同时在金属支架（40）设置有第二接地部（42），使第一接地部（26）和第二接地部（42）电连接，从而实现了对触控组件的接地处理，使外围的走线不容易短路或被静电击穿而烧毁，提高了触摸屏（100）的防静电性能。

Description

触摸屏、显示面板及汽车诊断设备
本申请要求于2019年9月20日提交中国专利局、申请号为201910895135.1、申请名称为“触摸屏、显示面板及汽车诊断设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种触摸屏、显示面板及汽车诊断设备。
背景技术
汽车诊断类平板电脑相对其他消费类平板电脑而言，使用的环境更加恶劣，例如经常会在高温高湿的修理厂、阳光暴晒或天寒地冻的户外使用，且使用者大多都手上沾有油污或带汗渍。这就需要汽车诊断类平板电脑的各个部件的功能更加稳定可靠，以保证其使用寿命更加长久。这其中就包括在使用平板电脑时被触碰最多的触摸屏。
在实现本发明的过程中，发明人发现相关技术至少存在以下问题：平板电脑内部对触摸屏无特殊的接地处理。触摸屏在上述恶劣环境下长时间使用后，外围的走线就容易短路或被静电击穿而烧毁，导致触摸屏功能异常或完全失效。
发明内容
为了解决上述技术问题，本发明实施例提供一种防止因短路或被静电击穿而烧毁，提高防静电性能的触摸屏、显示面板及汽车诊断设备。
为解决上述技术问题，本发明实施例提供以下技术方案：一种触摸屏，所述触摸屏应用在汽车诊断设备上，所述触摸屏包括：触控组件，所述触控组件包括触摸功能层和柔性电路板，所述触控功能层与所述柔性电路板电连接，所述柔性电路板设置有第一接地部，所述第一接地部与所述柔性电路板电连接；
金属支架，所述金属支架进行接地处理，所述金属支架设置有第二接地部，所述第一接地部和所述第二接地部电连接。
可选地，所述柔性电路板包括部分延伸出所述触摸功能层的延伸部，所述延伸部上设置有所述第一接地部，所述第一接地部与所述延伸部电连接。
可选地，所述延伸部可朝所述第二接地部的位置方向弯折，以使设置于所述延伸部上的第一接地部连接于所述第二接地部。
可选地，所述第一接地部包括金属片和导电层，所述金属片设置于所述延伸部的表面，所述导电层的一面层叠于所述金属片的表面，所述导电层的另一面与所述第二接地部连接。
可选地，所述第一接地部还包括粘结层，所述第一接地部通过所述粘结层 粘结在所述第二接地部。
可选地，所述粘结层的一面与所述导电层的一面均层叠于所述金属片的同一表面，所述粘结层的另一面和所述导电层的另一面均与所述第二接地部连接。
可选地，所述金属片远离所述延伸部的表面包括第一区域和第二区域，所述第一区域和所述第二区域的面积相同；
所述粘结层粘附于所述第一区域，所述导电层粘附于所述第二区域。
可选地，所述粘结层为3M双面胶，所述导电层为导电双面胶。
可选地，所述第二接地部呈凸台状，并设置于所述金属支架远离所述柔性电路板的一面。
可选地，所述凸台作镭雕导电处理。
可选地，所述触摸功能层包括盖板层和传感层，所述传感层和所述触控组件依次层叠于所述盖板层；
所述传感层包括第一传感层和第二传感层，所述第一传感层包括第一玻璃层和第一导电膜，所述第一导电膜层叠于所述第一玻璃层，所述第一导电膜上设置有电极走线；
所述第二传感层包括第二玻璃层和第二导电膜，所述第二导电膜和所述第二玻璃层依次层叠于所述第一导电膜远离所述第一玻璃层的表面，所述第二所述第二导电膜上设置有电极走线。
可选地，所述第一传感层和所述第二传感层之间的边缘处设置有密封结构，所述密封结构、所述第一传感层和第二传感层之间形成密封腔，所述密封腔内填充有密封材料。
为解决上述技术问题，本发明实施例还提供以下技术方案：一种显示面板。所述显示面板包括：
显示屏和如上所述的触摸屏，所述显示屏层叠于所述触控组件和所述金属支架之间。
为解决上述技术问题，本发明实施例还提供以下技术方案：一种汽车诊断设备。所述汽车诊断设备包括：
壳体；以及
如上所述的显示面板，所述显示面板设置于所述壳体内。
与现有技术相比较，本发明实施例的提供触摸屏包括触控组件和金属支架，所述触控组件包括触摸功能层和柔性电路板，所述触控功能层与所述柔性电路板电连接，所述柔性电路板设置有第一接地部，所述第一接地部与所述柔性电路板电连接；所述金属支架进行接地处理，所述金属支架设置有第二接地部，所述第一接地部和所述第二接地部电连接。通过在所述柔性电路板上设置有第一接地部，并使所述第一接地部与所述柔性电路板电连接，同时在所述金属支架设置有第二接地部，使所述第一接地部和所述第二接地部电连接，从而实现了对触控组件的接地处理，使外围的走线不容易短路或被静电击穿而烧 毁，提高了触摸屏的防静电性能。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本发明实施例提供的其中一种触摸屏的结构示意图，其中，所述触摸屏的第一接地部未与第二接地部连接；
图2是本发明实施例提供的另一种触摸屏的结构示意图，其中，所述触摸屏的第一连接部与第二接地部连接；
图3为图1所示的触摸屏的触摸功能层的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本说明书中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本发明。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本发明不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
请一并参阅图1和图2，本发明一实施例提供的一种触摸屏100，所述触摸屏应用在汽车诊断设备上，所述触摸屏包括触控组件20和金属支架40，所述触控组件20安装固定于所述金属支架40，所述金属支架40接触外界环境，以实现所述金属支架40的接地处理，例如，当所述触摸屏100作为诊断触摸屏时，由于用户手持所述金属支架40，所述金属支架40接触人体，进而使所 述金属支架40通过人体实现接地。
所述触控组件20包括触摸功能层22和柔性电路板24，所述触摸功能层22与所述柔性电路板24电连接。
请一并参阅图3，所述触摸功能层22包括盖板层222和传感层224，所述传感层224和柔性电路板24依次层叠于所述盖板层222。在本实施例中，所述盖板层222通过粘合胶层粘附在传感层224上，起到保护传感层224的作用，以防止传感层224被刮伤。所述粘合胶层可以为光学透明胶层(OCA)。
所述盖板层222包括超薄玻璃层2222及基材2224，所述基材2224形成于所述超薄玻璃层2222上，所述超薄玻璃层2222具有可弯折性；由于所述超薄玻璃层2222的超薄特性，使其具有良好的弯折特性，所述超薄玻璃层2222在良好可弯折性的基础上，同时可具有较高硬度和/或刚度，以满足耐摔和恢复性等特性。
所述基材2224用于提高所述盖板层222的硬度。由于所述基材2224形成于所述超薄玻璃层2222且正对使用用户，所述基材2224在具有预设硬度的同时，可具有耐刮、耐磨的特性。进一步地，所述基材2224的材料为有机材料时，使所述基材2224具备弯折特性，可进一步提高所述盖板层222的可弯折性。在一些实施例中，所述基材2224也可以为2D、2.5D或3D结构的玻璃基材2224。2D结构也就是指一个纯平面。此种结构的玻璃基本都平的，玻璃上的所有的点都处在同一个平面上。2.5D玻璃屏幕指的是尽管和一般的2D玻璃屏幕一样中间区域也是一个平面，但是2.5D玻璃在边缘采用了弧面过度，也就是在平面玻璃的基础上对边缘进行了弧度处理。而3D结构玻璃则是指屏幕弧度更大的玻璃，采用3D玻璃的显示面板等移动汽车诊断设备不仅表面的玻璃使用弧面设计，并且在触摸屏100也是带有弧度的3D屏幕。在一些实施例中，通过在基材2224表面涂覆形成一层隔离层，然后在隔离层上再次涂覆形成一层光催化剂层，光催化剂层在光照射下能够产生超氧自由基。当上述基材2224被应用于触摸屏100时，光催化剂在光照射下产生的超氧自由基能够有效地清除触摸屏100表面及四周装饰圈凹槽内的细菌等有害物质，解决了目前触摸屏100在长时间使用后容易积累细菌，不易清洁的问题。
在本实施例中，由于超薄玻璃层2222的超薄特性，使所述盖板层222具有良好的弯折特性，同时基材2224在不影响盖板层222的弯折特性的同时，提高了盖板层222的硬度，使所述由超薄玻璃层2222和所述基材2224共同组成的盖板层222，在具有良好的弯折特性同时，还具有硬度、耐摔等特性，满足了柔性显示屏中对盖板层222的要求。
在保证盖板层222具有一定硬度的基础上，为了使所述盖板层222具有更好的弯折特性，使所述由超薄玻璃层2222和所述基材2224共同组成的盖板层222的厚度范围为10μm～200μm，优选地，所述盖板层222的厚度范围为40μm～100μm。
所述超薄玻璃层2222可为含碱超薄玻璃和无碱超薄玻璃，具体地，所述 含碱超薄玻璃可为钠钙硅玻璃或铝硅酸盐玻璃。所述无碱超薄玻璃可为硼酸盐玻璃。
所述超薄玻璃层2222经薄化(蚀刻)、强化(离子交换)达到超薄特性的要求，所述超薄玻璃层2222的厚度范围可为10μm～100μm，优选地，所述超薄玻璃层2222的厚度范围为50μm～75μm。
在一些实施中，为了使所述超薄玻璃层2222在可弯折性的基础上，同时可具有较高硬度和/或刚度，以满足耐摔和恢复性特性。所述超薄玻璃层2222的表面硬度范围为3H～9H，优选地，所述超薄玻璃层2222的表面硬度范围为所4H～7H，所述超薄玻璃层2222的杨氏模量(E)范围为10GPa～100GPa，优选地，所述超薄玻璃层2222的杨氏模量(E)范围为50Gpa～80Gpa，所述超薄玻璃层2222的表面平整度不大于10nm。
所述传感层224包括第一传感层2242和第二传感层2244，所述第一传感层2242包括第一玻璃层22422和第一导电膜22424，所述第一导电膜22424层叠于所述第一玻璃层22422，所述第一导电膜22424上设置有电极走线。
所述第二传感层2244包括第二玻璃层22442和第二导电膜22444，所述第二导电膜22444和所述第二玻璃层22442依次层叠于所述第一导电膜22424远离所述第一玻璃层22422的表面，所述第二所述第二导电膜22444上设置有电极走线。由于第一导电膜22424和第二导电膜22444均位于第一玻璃层22422和第二玻璃层22442之间，因此可以隔绝外界环境的影响，使所述第一导电膜22424和所述第二导电膜22444能得到有效的保护，有效提高触摸屏100的可靠性。
其中，所述第一导电膜22424和所述第二导电膜22444为铟锡氧化物半导体透明导电膜，在一些实施例中，所述第一导电膜22424和所述第二导电膜22444也可以采用其他透明导电氧化物材料，例如，氧化铟锡(ISO)、氧化铟锌(IZO)、氧化锌(ZnO)、氧化铟锡锌(ISZO)等。
在一些实施例中，所述第一传感层2242和所述第二传感层2244之间的边缘处设置有密封结构，所述密封结构、所述第一传感层2242和第二传感层2244之间形成密封腔，所述密封腔内填充有密封材料。
在本实施例中，所述第一传感层2242与第二传感层2244之间的边缘处的间隙通过丝印环氧树脂形成所述密封结构。
在本实施例中，所述密封材料为水胶层，所述水胶层填充于所述密封腔内，且所述水胶层充满所述密封腔，所述第一传感层2242层与第二传感层2244通过水胶层粘合在一起。从而使得传感层224形成一个不具有空隙的整体，使第一玻璃层22422和所述第二玻璃层22442之间的第一导电膜22424和第二导电膜22444能彻底与空气隔离开来，避免第一导电膜22424和第二导电膜22444受到空气的腐蚀。
所述柔性电路板24包括至少一与外部元件连接的焊接区和与焊接区相连的连接区，焊接区用于与高速封装基板焊接。
焊接区包括依次叠置的第一层焊接区、第二层焊接区及第三层焊接区。第一层焊接区包括第一高速焊盘及第一信号参考地焊盘，第二层焊接区包括第二信号参考地焊盘，第三层焊接区包括第三高速焊盘及第三信号参考地焊盘。其中，第一高速焊盘与第三高速焊盘相互导通，第一信号参考地焊盘、第二信号参考地焊盘及第三信号参考地焊盘相互导通。
连接区包括叠置的第一连接线路层及第二连接线路层。第一连接线路层包括第一信号传输连接线及第一信号参考地连接线，第二层连接区包括与第一信号参考地连接线相互导通的第二信号参考地连接线。其中，第一信号传输连接线与第一高速焊盘相连，第一信号参考地连接线与第一信号参考地焊盘相连，第二信号参考地连接线与第二信号参考地焊盘相连。这里，通过设计三层结构的柔性电路板，可以解决现有技术中两层电路板带来的阻抗不连续以及回流路径长的问题，大大缩短高速信号的回流路径，从而大大降低高速信号的传输损耗，提高传输带宽。而且，焊接区为三层线路板，连接区为两层线路板，可以保证柔性电路板24的柔软度不受影响。
在实际使用过程中，当使用的环境比较恶劣，例如经常会在高温高湿的修理厂、阳光暴晒或天寒地冻的户外使用，且使用者手上沾有油污或带汗渍时，由于上述触摸屏100的内部无特殊的接地处理，触摸屏100在上述恶劣环境下长时间使用后，外围的走线就容易短路或被静电击穿而烧毁，导致触摸屏100功能异常或完全失效。
请复一并参阅图1和图2，为了解决上述问题，在本实施例中，所述柔性电路板24上设置有第一接地部26，所述第一接地部26与所述柔性电路板24电连接，同时在所述金属支架40设置有第二接地部42，所述第一接地部26和所述第二接地部42电连接，从而实现了对触控组件20的接地处理，使外围的走线不容易短路或被静电击穿而烧毁，提高了触摸屏100的防静电性能。
在不改变原有触摸屏100结构的基础上，为了更好的将第一接地部26和第二接地部42进行电连接，实现对触控组件20的接地处理，使所述柔性电路板24部分延伸出所述触摸功能层22，以形成延伸部242，进而将第一接地部26设置于所述延伸部242上，所述第一接地部26与所述延伸部242电连接。
由于所述柔性电路板24具有可弯折特性，从而部分延伸出所述触摸功能层22的延伸部242作为柔性电路板24的一部分也即具有弯折特性，从而所述延伸部可朝所述延伸部242可朝所述第二接地部42的位置方向弯折，以使设置于所述延伸部242上的第一接地部26连接于所述第二接地部42。同时为了易于使所述第一接地部26与所述第二接地部42连接，将所述第二接地部42设置于金属支架40靠近所述延伸部的一侧。
所述第一接地部26包括金属片(图未示出)和导电层262，所述金属片设置于所述延伸部242的表面，所述导电层262的一面层叠于所述金属片的表面，所述导电层262的另一面与所述第二接地部42连接，从而通过导电层262使所述第二接地部42和所述金属片连接，从而实现第一接地部26和所述第二 接地部42的电连接。
其中，所述导电层262为导电双面胶，所述导电双面胶优选为导电铜箔双面胶。在一些实施例中，导电双面胶也可以采用其它能够导电的双面胶，如导电铝箔双面胶等等。
其中，所述金属片为吸水性金属片，由此所述金属片可吸收环境中的水汽，避免水汽对柔性电路板24的侵蚀，提高触摸屏100的使用寿命。所述吸水性金属片为两层相同形状的第一金属片和第二金属片，互相重合组成。第一金属片和第二金属片之间设有接触区和间隙区，金属片之的接触区使第一金属片和第二金属片互相固定；设置接触区可以让两层较薄的金属片紧密粘连，从外表看来形成一张厚度等同于普通散热片厚度的金属片，获得普通同等厚度散热片一样的机械强度，同时不增加金属材料成本。第一金属片和第二金属片之间的间隙区形成细微的、开放的毛细缝隙。该间隙区在吸水性金属片上呈网状分布，间隙区的形状是由接触区的形状决定的。第一金属片和第二金属片采用金属材料铝片。接触区可通过将金属片物理挤压、点焊、粘合剂粘贴而形成；接触区的分布形状，可以通过金属加工的模具获得，只需将挤压滚筒的形状设计成对应的接触区的形状，让两层金属片通过该挤压滚筒连续挤压成形而获得，可以适合大规模生产，降低成本。
在一些实施例中，所述金属片也可为钢片等。
所述导电双面胶起到将金属片与金属支架40导通的作用，但因掺杂了导电物质，其粘性较差。因此为了增加金属片和所述第二接地部42之间的粘性，所述第一接地部26还包括粘结层264，所述第一接地部26通过所述粘结层264更好的与所述第二接地部42粘结。可以理解的是，所述粘结层264的一面与所述导电层262的一面均层叠于所述金属片的同一表面，所述粘结层264的另一面和所述导电层262的另一面均与所述第二接地部42连接。
为了兼顾导电层262的导电性和所述粘结层264的粘结性，优先地，将所述金属片远离所述延伸部242的表面包括第一区域和第二区域，所述第一区域和所述第二区域的面积相同；所述粘结层264粘附于所述第一区域，所述导电层262粘附于所述第二区域。
其中，在本实施例中，所述粘结层264为3M双面胶。所述3M双面胶可为PET基材双面胶，也可为其他种类的3M双面胶，例如无纺布基材双面胶及无基材双面胶等等。
所述金属支架40为镁合金支架或铝合金支架等等。所述金属支架40的形状与所述触控组件20中的触摸功能层22的形状相同，例如，所述触摸功能层22的形状为正方形，所述金属支架40的形状对应的设置为正方形；又例如，所述触摸功能层22的形状为圆形，所述金属支架40的形状对应的设置为圆形。
所述金属支架40的边缘处、侧壁或远离所述柔性电路板24的表面上设置有固定部44，所述固定部44可将所述金属支架40固定连接于外壳上，可以理解的是，所述外壳需接地，所述柔性电路板24通过第一接地部26和第二接 地部42与所述金属支架40电连接，同时所述金属支架40与接地的外壳连接，从而实现了对触控组件20的接地处理，使外围的走线不容易短路或被静电击穿而烧毁，提高了触摸屏100的防静电性能。
其中，所述固定部44可为螺孔，在本实施例中，通过与所述螺孔适配的螺钉或螺栓将所述金属支架40固定连接于外壳上。在一些实施例中，也可采用其他固定方式，例如，焊接等等。
所述第二接地部42设置于所述金属支架40远离所述柔性电路板24的一面，为了易于将所述第一接地部26的所述导电层262和粘结层264粘附于所述第二接地部42，以实现柔性电路板24和所述第二接地部42的电连接，在本实施例中，将所述第二接地部42设置呈凸台状，并将所述导电层262和所述粘结层264粘附或贴附于所述第二接地部42的凸面上。
为了提高凸台状的第二接地部42的导电性，将所述第二接地部42的凸面进行镭雕导电处理。具体地，为了防止第二接地部42的凸面导电不良(氧化或残留)需要对所述凸面进行镭雕处理，去除表面皮膜或阳极层。若所述第二接地部42为铝合金，通过所述镭雕处理后的凸面的阻抗小于1欧姆，若所述第二接地部42为镁合金，通过所述镭雕处理后的凸面的阻抗小于2欧姆。
本发明一实施例还提供一种显示面板，所述显示面板包括：显示屏和如上任一实施例中的所述触摸屏100，所述显示屏层叠于所述触控组件20和所述金属支架40之间。
所述显示屏可为液晶显示屏(TFT-LCD)或者OLED(Organic Light-Emitting Diode，有机发光二极管)显示屏。所述显示屏包括发光层和驱动层，所述驱动层用于驱动所述发光层，所述驱动层层叠于所述超薄触控结构，所述发光层层叠于所述驱动层。
所述发光层作为发射光线源用于产生所述发射光线。所述发光层包括有机功能层、阴极及阳极。其中，所述有机功能层层叠设置于所述阴极与所述阳极之间，以产生所述发射光线。其中，所述有机功能层由基质材料掺杂一定比例的有机发光材料制备而成。在施加外部电压的情况下，所述阳极的空穴向所述有机功能层迁移，所述阴极的电子向所述有机功能层迁移，电子与空穴在所述有机功能层中相遇形成电子-空穴对，电子从激发态跃迁为基态，以辐射光子的形式释放能量，从而产生电致发光。其中的有机发光材料可以选择有机小分子材料或有机高分子材料，以实现电致发光。
所述驱动层设置于所述发光层的一侧面，用以驱动所述发光层。所述驱动层结构，以及如何扫描驱动所述发光层产生所述发射光线，是现有技术手段，在此不再赘述。
本发明一实施例还提供一种汽车诊断设备，所述汽车诊断设备包括壳体及上述任一实施例中的所述显示面板。
与现有技术相比较，本发明提供了一种触摸屏，所述触摸屏包括触控组件和金属支架，所述触控组件包括触摸功能层和柔性电路板，所述触摸功 能层与所述柔性电路板电连接，所述柔性电路板设置有第一接地部，所述第一接地部与所述柔性电路板电连接；所述金属支架进行接地处理，所述金属支架设置有第二接地部，所述第一接地部和所述第二接地部电连接。通过在所述柔性电路板上设置有第一接地部，并使所述第一接地部与所述柔性电路板电连接，同时在所述金属支架设置有第二接地部，使所述第一接地部和所述第二接地部电连接，从而实现了对触控组件的接地处理，使外围的走线不容易短路或被静电击穿而烧毁，提高了触摸屏的防静电性能。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；在本发明的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本发明的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (14)

  1. 一种触摸屏，其特征在于，所述触摸屏应用在汽车诊断设备上，所述触摸屏包括：
    触控组件，所述触控组件包括触摸功能层和柔性电路板，所述触控功能
    层与所述柔性电路板电连接，所述柔性电路板设置有第一接地部，所述第一接地部与所述柔性电路板电连接；
    金属支架，所述金属支架进行接地处理，所述金属支架设置有第二接地部，所述第一接地部和所述第二接地部电连接。
  2. 根据权利要求1所述的触摸屏，其特征在于，
    所述柔性电路板包括部分延伸出所述触摸功能层的延伸部，所述延伸部上设置有所述第一接地部，所述第一接地部与所述延伸部电连接。
  3. 根据权利要求2所述的触摸屏，其特征在于，
    所述延伸部可朝所述第二接地部的位置方向弯折，以使设置于所述延伸部上的第一接地部连接于所述第二接地部。
  4. 根据权利要求2所述的触摸屏，其特征在于，
    所述第一接地部包括金属片和导电层，所述金属片设置于所述延伸部的表面，所述导电层的一面层叠于所述金属片的表面，所述导电层的另一面与所述第二接地部连接。
  5. 根据权利要求4所述的触摸屏，其特征在于，所述第一接地部还包括粘结层，所述第一接地部通过所述粘结层粘结在所述第二接地部。
  6. 根据权利要求5所述的触摸屏，其特征在于，所述粘结层的一面与所述导电层的一面均层叠于所述金属片的同一表面，所述粘结层的另一面和所述导电层的另一面均与所述第二接地部连接。
  7. 根据权利要求5所述的触摸屏，其特征在于，
    所述金属片远离所述延伸部的表面包括第一区域和第二区域，所述第一区域和所述第二区域的面积相同；
    所述粘结层粘附于所述第一区域，所述导电层粘附于所述第二区域。
  8. 根据权利要求5所述的触摸屏，其特征在于，所述粘结层为3M双面胶，所述导电层为导电双面胶。
  9. 根据权利要求1所述的触摸屏，其特征在于，
    所述第二接地部呈凸台状，并设置于所述金属支架远离所述柔性电路板的一面。
  10. 根据权利要求9所述的触摸屏，其特征在于，
    所述第二接地部的凸面作镭雕导电处理。
  11. 根据权利要求1-10任一项所述的触摸屏，其特征在于，
    所述触摸功能层包括盖板层和传感层，所述传感层和所述触控组件依次层叠于所述盖板层；
    所述传感层包括第一传感层和第二传感层，所述第一传感层包括第一玻璃层和第一导电膜，所述第一导电膜层叠于所述第一玻璃层，所述第一导电膜上设置有电极走线；
    所述第二传感层包括第二玻璃层和第二导电膜，所述第二导电膜和所述第二玻璃层依次层叠于所述第一导电膜远离所述第一玻璃层的表面，所述第二所述第二导电膜上设置有电极走线。
  12. 根据权利要求11所述的触摸屏，其特征在于，
    所述第一传感层和所述第二传感层之间的边缘处设置有密封结构，所述密封结构、所述第一传感层和第二传感层之间形成密封腔，所述密封腔内填充有密封材料。
  13. 一种显示面板，其特征在于，包括：
    显示屏和如权利要求1-12任一项所述的触摸屏，所述显示屏层叠于所述触控组件和所述金属支架之间。
  14. 一种汽车诊断设备，其特征在于，包括：
    壳体；以及
    如权利要求13中所述的显示面板，所述显示面板设置于所述壳体内。
PCT/CN2020/116256 2019-09-20 2020-09-18 触摸屏、显示面板及汽车诊断设备 WO2021052476A1 (zh)

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CN103336597A (zh) * 2013-06-06 2013-10-02 业成光电（深圳）有限公司 触控显示模组
CN105786230A (zh) * 2014-12-23 2016-07-20 宸鸿科技(厦门)有限公司 触控面板及其制造方法
CN106896552A (zh) * 2015-10-31 2017-06-27 乐金显示有限公司 显示装置
CN205193755U (zh) * 2015-11-02 2016-04-27 上海天马微电子有限公司 一种显示面板和显示装置
CN110543260A (zh) * 2019-09-20 2019-12-06 深圳市道通科技股份有限公司 触摸屏、显示面板及汽车诊断设备
CN210666726U (zh) * 2019-09-20 2020-06-02 深圳市道通科技股份有限公司 触摸屏、显示面板及汽车诊断设备

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