WO2021081735A1 - 胶带、车载显示模组及车载显示装置 - Google Patents

胶带、车载显示模组及车载显示装置 Download PDF

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Publication number
WO2021081735A1
WO2021081735A1 PCT/CN2019/113917 CN2019113917W WO2021081735A1 WO 2021081735 A1 WO2021081735 A1 WO 2021081735A1 CN 2019113917 W CN2019113917 W CN 2019113917W WO 2021081735 A1 WO2021081735 A1 WO 2021081735A1
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WO
WIPO (PCT)
Prior art keywords
layer
substrate
conductive
vehicle
adhesive tape
Prior art date
Application number
PCT/CN2019/113917
Other languages
English (en)
French (fr)
Inventor
崔栋
韩锐
马青
佟泽源
张志鹏
王丰平
翟跃
张赞
李文洋
迟卫宁
谭蕊
冷寿阳
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN201990000184.8U priority Critical patent/CN211972200U/zh
Priority to US16/971,032 priority patent/US11964464B2/en
Priority to PCT/CN2019/113917 priority patent/WO2021081735A1/zh
Publication of WO2021081735A1 publication Critical patent/WO2021081735A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/44—Number of layers variable across the laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/1523—Matrix displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/25—Optical features of instruments using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/816—Fastening of displays or touch screens

Definitions

  • This application relates to the field of display technology, and in particular to a tape, a vehicle-mounted display module, and a vehicle-mounted display device.
  • tape Cell Tape
  • BLU Back Light Unit
  • Panel display panel
  • an adhesive tape is provided.
  • the adhesive tape includes: a substrate; a conductive adhesive layer provided on the substrate; and an insulating layer provided on a part of the adhesive surface of the conductive adhesive layer, the insulating layer configured to insulate the conductive adhesive The conductive part in the adhesive layer and the object to be bonded.
  • the insulating layer has a single-layer structure.
  • the insulating layer includes an insulating glue layer or an insulating resin layer.
  • the insulating layer has a multilayer structure.
  • the insulating layer includes: at least one insulating resin layer laminated along the direction of the conductive adhesive layer away from the substrate, and at least one insulating resin layer on the surface of the at least one insulating resin layer facing away from the substrate. Insulating glue layer.
  • the orthographic projection of the insulating layer on the substrate is within the orthographic projection of the conductive adhesive layer on the substrate, and the orthographic projection of the insulating layer on the substrate There is a gap between at least part of the outer contour of the conductive adhesive layer and the outer contour of the orthographic projection of the conductive adhesive layer on the substrate.
  • the thickness of the insulating layer ranges from 0.001 mm to 0.030 mm.
  • the thickness of the insulating layer is the dimension along the direction away from the conductive adhesive layer.
  • the substrate is a light-shielding substrate.
  • the conductive adhesive layer is a light-shielding conductive adhesive layer.
  • the adhesive tape further includes a light-shielding layer disposed between the substrate and the conductive adhesive layer.
  • the vehicle-mounted display module includes: a display panel; a plastic frame that carries the display panel; and an adhesive tape bonded to the display panel and the plastic frame and as described in some of the above embodiments.
  • the display panel includes: an array substrate, a color filter substrate, and a conductive portion on a portion of the array substrate that is not covered by the color filter substrate, and the conductive portion is on the array substrate.
  • the orthographic projection on is located in the orthographic projection of the insulating layer on the array substrate in the tape.
  • the display panel includes: an array substrate, a color filter substrate, a conductive portion located on a portion of the array substrate that is not covered by the color filter substrate, and a conductive portion coated on the conductive portion
  • the protective layer is configured to protect the conductivity of the conductive part.
  • the orthographic projection of the portion of the conductive portion that is not covered by the protective layer on the array substrate is located in the orthographic projection of the insulating layer on the array substrate in the tape.
  • the protective layer is a light-curing adhesive layer or a room temperature vulcanized silicone rubber layer.
  • the conductive portion includes signal line traces or line detection points.
  • the display panel further includes: a first polarizer disposed on a side of the color filter substrate facing away from the array substrate.
  • the part of the color filter substrate that is not covered by the first polarizer is bonded to the adhesive tape, and the thickness of the adhesive tape is less than or equal to the thickness of the first polarizer; wherein the thickness of the adhesive tape is equal to The thickness of the first polarizer is the dimension along the direction away from the color filter substrate.
  • the vehicle-mounted display module further includes: a backlight module disposed on a side of the plastic frame facing away from the display panel.
  • the adhesive tape is also bonded to the backlight module.
  • the vehicle-mounted display module further includes: a screen drive board, a flexible circuit board electrically connected to the display panel, and connections electrically connected to the screen drive board and the flexible circuit board, respectively Device.
  • the tape is also bonded to the screen driving board, and the orthographic projection of the connector on the tape is located in the area where the insulating layer in the tape is located.
  • a vehicle-mounted display device in another aspect, includes the vehicle-mounted display module as described in some of the above embodiments.
  • Fig. 1 is a partial schematic diagram of a vehicle-mounted display module according to some embodiments of the present disclosure
  • Fig. 2 is a schematic cross-sectional view of the vehicle-mounted display module shown in Fig. 1 along the B-B direction;
  • FIG. 3 is a schematic cross-sectional view of another vehicle-mounted display module shown in FIG. 1 along the B-B direction;
  • Fig. 4 is a schematic diagram of a tape contacting a conductive part according to some embodiments of the present disclosure
  • Fig. 5 is a schematic cross-sectional view of yet another vehicle-mounted display module shown in Fig. 1 along the B-B direction;
  • Figure 6 is a schematic diagram of an adhesive tape according to some embodiments of the present disclosure.
  • Figure 7 is a schematic diagram of another adhesive tape according to some embodiments of the present disclosure.
  • Fig. 8 is a schematic top view of a tape shown in Fig. 6;
  • Figure 9 is a schematic top view of another tape shown in Figure 6;
  • Fig. 10 is a schematic top view of another adhesive tape shown in Fig. 6;
  • FIG. 11 is a schematic diagram of another adhesive tape according to some embodiments of the present disclosure.
  • FIG. 12 is a schematic diagram of a vehicle-mounted display device according to some embodiments of the present disclosure.
  • Small-sized liquid crystal display devices such as vehicle-mounted liquid crystal display devices, are usually provided with a display module.
  • the display module 1000 includes a display panel 200, a plastic frame 300, and a cell tape 100 configured to adhere the display panel 200 to the plastic frame 300.
  • the above-mentioned display panel 200 generally has a display area AA and a non-display area located at the periphery of the display area.
  • the display panel 200 includes an array substrate 201 and a color filter substrate 202 disposed on the array substrate 201.
  • a liquid crystal is provided between the array substrate 201 and the color filter substrate 202.
  • the area at least includes at least one of a detection area or a signal line binding area (for example, a PAD area), so as to be configured to be connected to a screen detection device or a driver chip (IC) or a screen driver board or the like. That is, the conductive portion 203 in the display panel 200 is usually disposed in this area, and the conductive portion 203 is at least one conductive element including signal line traces or line detection points. In addition, the conductive portion 203 is a component of the array substrate 201, which can be manufactured together with the pixel driving circuit in the array substrate 201 during the manufacturing process of the array substrate 201.
  • the vibration reliability test is performed on the on-board display module 1000, which can ensure the reliability of the use of the on-board display module 1000 after being installed in a vehicle.
  • the inventor found that the plastic frame 300 is easily deformed by force, and the display panel 200 is easily displaced relative to the plastic frame 300 in the direction perpendicular to the display surface. , So that the adhesive tape 100 comes into contact with the conductive part 203 in the display panel 200. Since the cell tape 100 (Cell Tape) for bonding the display panel 200 and the plastic frame 300 is generally conductive, once the tape 100 comes into contact with the conductive portion 203 in the display panel 200, it will cause a short circuit in part of the circuit in the display panel 200. , which in turn leads to poor display of the display panel 200. Based on this, some embodiments of the present disclosure provide an adhesive tape 100 for application in the vehicle display module 1000. Please refer to FIG.
  • the adhesive tape 100 includes a substrate 101, a conductive adhesive layer 102 disposed on the substrate 101, and an insulating layer 103 disposed on a part of the adhesive surface of the conductive adhesive layer 102.
  • the insulating layer 103 is configured to insulate the conductive adhesive layer 102 and the conductive portion 203 in the object to be adhered.
  • the object to be adhered is the display panel 200 in the vehicle-mounted display module 1000.
  • the conductive portion 203 in the display panel 200 is located in an area of the array substrate 201 that is not covered by the color filter substrate 202, and the conductive portion 203 includes: signal line routing or line detection points, etc.
  • the conductive adhesive layer 102 provided in the adhesive tape 100 can effectively improve the electrostatic discharge of the display panel 200 (that is, the corresponding vehicle display module 1000). Electro-Static Discharge (ESD for short) resistance capability.
  • ESD Electro-Static Discharge
  • the insulating layer 103 is disposed on a part of the bonding surface of the conductive adhesive layer 102. On the basis of the conductive adhesive layer 102 effectively bonding the display panel 200, the insulating layer 103 can be used to effectively insulate the conductive adhesive layer 102 and the display panel. The conductive portion 203 in the panel 200.
  • the adhesive tape 100 is usually in a tight state after the display panel 200 and the plastic frame 300 are adhered, and the inner surface of the adhesive tape 100 (that is, the surface facing the display panel 200) and the conductive portion of the display panel 200 There is a certain interval between 203, and the tape 100 and the conductive part 203 can be insulated by air.
  • the insulating layer 103 is disposed on a part of the adhesive surface of the conductive adhesive layer 102, so that during the long-term use of the vehicle-mounted display module 1000 or the reliability test process, as shown in FIG.
  • the plastic frame 300 in the display module 1000 is deformed, or the display panel 200 is displaced relative to the plastic frame 300 in a direction perpendicular to the display surface, so that the inner surface of the tape 100 directly contacts the conductive portion 203 in the display panel 200, which is also
  • the insulating layer 103 in the tape 100 is in direct contact with the conductive portion 203, so that the conductive adhesive layer 102 in the tape 100 and the conductive portion 203 are in contact with each other, which may cause a short circuit problem in the vehicle-mounted display module 1000.
  • the adhesive tape 100 has light-shielding properties, that is, the components of at least one layer of the adhesive tape 100 can shield light, so as to prevent the vehicle-mounted display module 1000 adhered thereto from leaking light from the side.
  • the substrate 101 in the adhesive tape 100 is a light-shielding substrate, that is, the substrate 101 is made of a material that does not transmit light or has a light transmittance of less than or equal to 10%, such as black polyimide.
  • the conductive adhesive layer 102 in the adhesive tape 100 is a light-shielding conductive adhesive layer, that is, the conductive adhesive layer 102 is made of conductive glue with opaque or light transmittance less than or equal to 10%, such as black conductive glue. .
  • the substrate 101 and the conductive adhesive layer 102 in the adhesive tape 100 are both light-transmissive. Please refer to FIG. 7.
  • the adhesive tape 100 further includes a light-shielding layer 104 disposed between the substrate 101 and the conductive adhesive layer 102.
  • the light-shielding layer 104 is made of a material that does not transmit light or has a light transmittance of less than or equal to 10%, such as black ink.
  • the adhesive tape 100 further includes a release film 105 disposed on the surface of the insulating layer 103 away from the conductive adhesive layer 102, and the non-conductive adhesive layer 102
  • the insulating layer 103 covers the surface.
  • the release film 105 can protect the conductive adhesive layer 102 and the insulating layer 103.
  • the release film 105 can be removed.
  • the insulating layer 103 in the above-mentioned tape 100 is made of an insulating material, and the insulating layer 103 can be a single-layer structure or a multilayer structure.
  • the insulating layer 103 has a single-layer structure, and the insulating layer 103 is an insulating glue layer or an insulating resin layer. That is to say, the insulating layer 103 is made of one of insulating glue or insulating resin.
  • the insulating layer 103 is formed by a coating process, which is simple to operate and convenient to manufacture.
  • the insulating glue is acrylic glue.
  • the insulating resin is polyethylene terephthalate (PET) or polybutylene terephthalate (PBT).
  • the insulating layer 103 has a multilayer structure, and the insulating layer 103 includes: at least one insulating resin layer 1031 stacked in a direction away from the substrate 101, and at least one insulating resin layer 1031 An insulating glue layer 1032 on the surface of the insulating resin layer 1031 facing away from the substrate 101. That is to say, the insulating layer 103 is made of two materials: insulating resin and insulating glue, and the insulating glue layer 1032 made of insulating glue covers the insulating resin layer 1031.
  • an insulating adhesive layer 1032 is provided in the insulating layer 103, which can ensure the adhesive strength and the adhesive effect of the adhesive tape 100 as a whole under the premise of ensuring the insulating effect of the insulating layer 103.
  • the orthographic projection of the insulating layer 103 on the substrate 101 is within the orthographic projection of the conductive adhesive layer 102 on the substrate 101, and the insulating layer 103 is on the substrate 101. There is a gap between at least part of the outer contour of the orthographic projection on the upper surface and the outer contour of the orthographic projection of the conductive adhesive layer 102 on the substrate 101.
  • the insulating layer 103 is disposed in the central area of the conductive adhesive layer 102, and there is a gap between the entire edge of the insulating layer 103 and the corresponding edge of the conductive adhesive layer 102.
  • the insulating layer 103 is disposed on a certain side edge of the conductive adhesive layer 102, and there is a space between a part of the edge of the insulating layer 103 and the corresponding edge of the conductive adhesive layer 102.
  • the conductive adhesive layer 102 is not blocked due to the existence of the insulating layer 103, thereby ensuring that the adhesive tape 100 still has conductivity and good adhesion performance, so as to effectively improve the display panel 200 (that is, corresponding to the vehicle display
  • the electrostatic discharge resistance of the module 1000 also ensures that the adhesive tape 100 achieves a firm adhesion to the display panel 200 and the plastic frame 300.
  • the tape 100 has a long strip shape.
  • the shape of the insulating layer 103 matches the shape of the tape 100, and the insulating layer 103 is also elongated.
  • the width of the insulating layer 103 ranges from 2 mm to 4 mm.
  • the position of the insulating layer 103 on the conductive adhesive layer 102 can be selected to match the position of the conductive part in the object to be adhered, which is not limited in some embodiments of the present disclosure.
  • the orthographic projection of the conductive portion 203 on the array substrate 201 is within the orthographic projection of the insulating layer 103 on the array substrate 201 in the tape 100.
  • the conductive portion 203 is directly opposite to the insulating layer 103 in the tape 100, and the orthographic projection area of the conductive portion 203 on the array substrate 201 is smaller than the orthographic projection area of the insulating layer 103 in the tape 100 on the array substrate 201.
  • the insulating layer 103 is used to insulate the conductive adhesive layer 103 and the conductive part 203 well, so as to prevent the on-board display module 1000 from being short-circuited due to the contact between the conductive adhesive layer 102 and the conductive part 203 problem.
  • the display panel 200 further includes a protective layer 206 coated on the conductive part 203.
  • a protective layer 206 is provided on the conductive portion 203, and the protective layer 206 can be used to effectively protect the conductive performance of the conductive portion 203, that is, to prevent the external environment from adversely affecting the conductive performance of the conductive portion 203.
  • the protective layer 206 is an Ultraviolet Rays (UV for short) adhesive layer or a Room Temperature Vulcanized Silicone Rubber (RTV for short) layer.
  • UV Ultraviolet Rays
  • RTV Room Temperature Vulcanized Silicone Rubber
  • the conductive portion 203 is a signal line trace.
  • the conductive part 203 and the flexible circuit board are coated with a UV adhesive layer, and the UV adhesive layer can be used to Signal wire routing and flexible circuit board are bonded and fixed and conductive protection. Due to the limitation of production equipment and production process capabilities, it is generally difficult for the protective layer 206 to completely cover the conductive portion 203, that is, the problem that the edge portion of the conductive portion 203 is not covered by the protective layer 206 may occur.
  • the conductive portion 203 includes a plurality of line detection points. The detection points of each circuit are exposed, and the protective layer 206 does not need to be coated.
  • the orthographic projection of the portion of the conductive portion 203 that is not covered by the protective layer 206 on the array substrate 201 should be within the orthographic projection of the insulating layer 103 on the array substrate 201 in the tape 100.
  • the conductive portion 203 is directly opposite to the insulating layer 103 in the tape 100, and the orthographic projection area of the portion of the conductive portion 203 that is not covered by the protective layer 206 on the array substrate 201 is smaller than that of the insulating layer 103 in the tape 100 on the array substrate.
  • the insulating layer 103 can be used to insulate the conductive adhesive layer 103 and the conductive part 203 well, so as to prevent the vehicle display module 1000 from being caused by the conductive adhesive layer 102.
  • Contact with the conductive portion 203 causes a problem of defective short circuit.
  • the above-mentioned tape 100 is configured to bond the display panel 200 and the plastic frame 300 to achieve a lighter and thinner corresponding to the vehicle display module 1000.
  • the thickness of the tape 100 is relatively thin, and the thickness of the insulating layer 103 in the tape 100 can be selected and set according to actual needs.
  • the thickness of the insulating layer 103 ranges from 0.001 mm to 0.030 mm, such as 0.025 mm.
  • the thickness of the insulating layer 103 is its dimension in the direction away from the conductive adhesive layer 102.
  • the thickness of the insulating layer 103 is the sum of the thicknesses of the constituent parts of each layer.
  • the display panel 200 further includes: a first polarizer 204 disposed on a side of the color filter substrate 202 facing away from the array substrate 201.
  • the part of the color filter substrate 202 that is not covered by the first polarizer 204 is bonded to the adhesive tape 100, and the thickness of the adhesive tape 100 is less than or equal to the thickness of the first polarizer 204.
  • the thickness of the adhesive tape 100 and the thickness of the first polarizer 204 are their dimensions in the direction away from the color filter substrate 202, respectively.
  • the thickness of the adhesive tape 100 should be less than or equal to the thickness of the first polarizer 204.
  • the plastic frame 300 is configured to carry The bearing surface of the display panel 200 is used as a reference, and the outer surface of the tape 100 will not be higher than the surface of the first polarizer 204 away from the color filter substrate 202, which facilitates the flat installation of glass covers and other accessories on the first polarizer 204 .
  • the display panel 200 further includes a second polarizer 205 disposed on a side of the array substrate 201 facing away from the color filter substrate 202.
  • the vehicle-mounted display module 1000 further includes a foam 500 arranged between the second polarizer 205 and the bearing surface of the plastic frame 300.
  • the bearing surface of the plastic frame 300 refers to the surface of the plastic frame 300 configured to carry the display panel 200.
  • the foam 500 is arranged between the plastic frame 300 and the display panel 200, and the foam 500 can be used to support and protect the display panel 200.
  • the foam 500 can be used to effectively buffer the force of the display panel 200 to prevent the display panel 200 from being pressed. damaged.
  • the vehicle-mounted display module 1000 further includes: a backlight module 400 disposed on a side of the plastic frame 300 facing away from the display panel 200.
  • the tape 100 is also bonded to the backlight module 400 to fix the backlight module 400 and the display panel 200.
  • the backlight module 400 is configured to provide backlight to the display panel 200, and the light emitting area of the backlight module 400 is usually set corresponding to the display area AA of the display panel 200.
  • the structure of the backlight module 400 can be selected and set according to actual needs, which is not limited in some embodiments of the present disclosure.
  • the backlight module 400 includes a base 401, a backlight source 402, a light guide plate 403 and an optical film set 404 stacked on the base 401.
  • the optical film set 404 includes at least one layer of functional films, such as a diffusion film and a brightness enhancement film that are stacked.
  • the vehicle display module 1000 further includes: a screen driver board 600, a flexible circuit board 601 electrically connected to the display panel 200, and electrically connected to the screen driver board 600 and the flexible circuit board 601, respectively ⁇ 602 ⁇ The connector 602.
  • the screen driver board 600 may also be referred to as a logic (Timing Controller, T-con for short) board.
  • the screen driver board 600 is disposed on the side of the backlight module 400 away from the display panel 200 and is configured to provide the display panel 200 with signals such as timing signals and data signals required for display.
  • the screen driver board 600 is a printed circuit board (Printed Circuit Board, PCB for short).
  • the flexible circuit board 601 is electrically connected to the display panel 200, and it appears that it is electrically connected to the conductive portion 203 (for example, a signal line) in the display panel 200. After the flexible circuit board 601 is bound to the conductive portion 203 in the display panel 200, the flexible circuit board 601 is bent so that the end of the flexible circuit board 601 away from the conductive portion 203 is electrically connected to the screen driver board 600 through the connector 602.
  • the connector 602 is configured to connect the flexible circuit board 601 and the screen driver board 600, and its structure can be selected and set according to actual needs, which is not limited in some embodiments of the present disclosure.
  • the adhesive tape 100 is also bonded to the screen driver board 600. That is, when the adhesive tape 100 adheres the display panel 200, the plastic frame 300 and the backlight module 400, it also wraps the screen driver board 600 inside.
  • the orthographic projection of the connector 602 on the tape 100 should be located in the area where the insulating layer 103 in the tape 100 is located. That is to say, the part of the adhesive tape 100 where the conductive adhesive layer 102 and the connector 602 are directly opposite is also provided with an insulating layer 103, so that the insulating layer 103 can be used to insulate the conductive adhesive when the adhesive tape 100 is in direct contact with the connector 602.
  • the layer 103 and the connector 602 so as to avoid the problem of poor short circuit of the vehicle-mounted display module 1000 due to the contact between the conductive adhesive layer 102 and the connector 602.
  • the insulating layer 103 corresponding to the connector 602 and the insulating layer 103 corresponding to the conductive portion 203 may be the same insulating layer (for example, as shown in FIG. 8 and FIG. 9), or two insulating layers that are provided independently of each other. Layer (e.g. as shown in Figure 10).
  • the vehicle-mounted display device 101 includes the vehicle-mounted display module 1000 in some of the foregoing embodiments, which has the same beneficial effects as the vehicle-mounted display module 1000 in some of the foregoing embodiments. Since some of the foregoing embodiments have already described the structure and beneficial effects of the vehicle-mounted display module 1000 in detail, it will not be repeated here.
  • the vehicle-mounted display device 101 is a vehicle-mounted liquid crystal display device.

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Abstract

一种车载显示模组（1000），包括：显示面板（200）、承载显示面板（200）的胶框（300）、以及显示面板（200）及胶框（300）粘接的胶带（100），胶带（100）包括：基材（101）、设置于基材（101）上的导电胶层（102）、以及设置于导电胶层（102）的部分粘接面上的绝缘层（103），绝缘层（103）配置为绝缘导电胶层（102）和待粘接物内的导电部（203），从而能够避免胶带（100）中的导电胶层（102）与导电部（203）接触而导致车载显示模组（1000）出现短路不良的问题。

Description

胶带、车载显示模组及车载显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种胶带、车载显示模组及车载显示装置。
背景技术
在小尺寸的液晶显示装置中，例如车载液晶显示装置中，通常会使用胶带(Cell Tape)将背光模组(Back Light Unit，简称BLU)和显示面板(Panel)固定在一起，以实现液晶显示装置的轻薄化。
发明内容
一方面，提供一种胶带。所述胶带，包括：基材；设置于所述基材上的导电胶层；以及，设置于所述导电胶层的部分粘接面上的绝缘层，所述绝缘层配置为绝缘所述导电胶层和待粘接物内的导电部。
在一些实施例中，所述绝缘层为单层结构。所述绝缘层包括绝缘胶层或绝缘树脂层。
在另一些实施例中，所述绝缘层为多层结构。所述绝缘层包括：沿所述导电胶层的背离所述基材的方向层叠设置的至少一层绝缘树脂层，以及位于所述至少一层绝缘树脂层的背离所述基材的表面上的绝缘胶层。
在一些实施例中，所述绝缘层在所述基材上的正投影位于所述导电胶层在所述基材上的正投影内，且所述绝缘层在所述基材上的正投影的至少部分外轮廓与所述导电胶层在所述基材上的正投影的外轮廓之间具有间隔。
在一些实施例中，所述绝缘层的厚度的取值范围为0.001㎜～0.030㎜。所述绝缘层的厚度为其沿背离所述导电胶层的方向上的尺寸。
在一些实施例中，所述基材为遮光基材。
在另一些实施例中，所述导电胶层为遮光导电胶层。
在又一些实施例中，所述胶带还包括设置于所述基材与所述导电胶层之间的遮光层。
另一方面，提供一种车载显示模组。所述车载显示模组，包括：显示面板；承载所述显示面板的胶框；以及，与所述显示面板及所述胶框粘接且如上一些实施例所述的胶带。
在一些实施例中，所述显示面板包括：阵列基板、彩膜基板、以及位于所述阵列基板的未被所述彩膜基板覆盖的部分上的导电部，所述导电部在所述阵列基板上的正投影位于所述胶带中所述绝缘层在所述阵列基板上的正投影内。
在另一些实施例中，所述显示面板包括：阵列基板、彩膜基板、位于所述阵列基板的未被所述彩膜基板覆盖的部分上的导电部、以及涂覆在所述导电部上的保护层，所述保护层配置为保护所述导电部的导电性能。所述导电部的未被所述保护层覆盖的部分在所述阵列基板上的正投影位于所述胶带中所述绝缘层在所述阵列基板上的正投影内。
在一些实施例中，所述保护层为光固化胶层或室温硫化硅橡胶层。
在一些实施例中，所述导电部包括信号线走线或线路检测点。
在一些实施例中，所述显示面板，还包括：设置于所述彩膜基板的背离所述阵列基板的一侧的第一偏光片。所述彩膜基板的未被所述第一偏光片覆盖的部分与所述胶带粘接，且所述胶带的厚度小于或等于所述第一偏光片的厚度；其中，所述胶带的厚度和所述第一偏光片的厚度分别为其沿背离所述彩膜基板的方向上的尺寸。
在一些实施例中，所述车载显示模组，还包括：设置于所述胶框的背离所述显示面板的一侧的背光模组。所述胶带还与所述背光模组粘接。
在一些实施例中，所述车载显示模组，还包括：屏驱动板、与所述显示面板电连接的柔性线路板、以及与所述屏驱动板及所述柔性线路板分别电连接的连接器。所述胶带还与所述屏驱动板粘接，所述连接器在所述胶 带上的正投影位于所述胶带中所述绝缘层所在的区域内。
又一方面，提供一种车载显示装置。所述车载显示装置，包括如上一些实施例所述的车载显示模组。
附图说明
为了更清楚地说明本公开一些实施例中的技术方案，下面将对一些实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1为根据本公开一些实施例中的一种车载显示模组的局部示意图；
图2为图1所示的一种车载显示模组沿B-B向的剖视示意图；
图3为图1所示的另一种车载显示模组沿B-B向的剖视示意图；
图4为根据本公开一些实施例中的一种胶带与导电部接触的示意图；
图5为图1所示的又一种车载显示模组沿B-B向的剖视示意图；
图6为根据本公开一些实施例中的一种胶带的示意图；
图7为根据本公开一些实施例中的另一种胶带的示意图；
图8为图6所示的一种胶带的俯视示意图；
图9为图6所示的另一种胶带的俯视示意图；
图10为图6所示的另一种胶带的俯视示意图；
图11为根据本公开一些实施例中的又一种胶带的示意图；
图12为根据本公开一些实施例中的一种车载显示装置的示意图。
具体实施方式
下面将结合本公开一些实施例中的附图，对本公开一些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公开一部分实施例，而不是全部的实施例。基于本公开中的一些实施例，本领域普通技术人员所能获得的所有其他实施例，都属于本公开保护的范围。
小尺寸的液晶显示装置，例如车载液晶显示装置，通常设置有显示模 组。
本公开一些实施例提供了一种车载显示模组。请参阅图1～图3，显示模组1000包括显示面板200、胶框300以及配置为将显示面板200粘接于胶框300上的胶带100(Cell Tape)。
上述显示面板200通常具有显示区AA以及位于显示区周边的非显示区。显示面板200包括：阵列基板201以及设置于阵列基板201上的彩膜基板202。在显示面板200为液晶显示面板的情况下，阵列基板201与彩膜基板202之间设有液晶。此外，阵列基板201的至少一侧的边缘部分与彩膜基板202对应的边缘部分之间具有断层，也即，阵列基板201存在未被彩膜基板202覆盖的区域。所述区域至少包括检测区或信号线绑定区(例如PAD区)中的至少一种，以配置为连接屏幕检测设备或驱动芯片(IC)或屏驱动板等。也即，显示面板200内的导电部203通常设置于该区域，该导电部203为包括信号线走线或线路检测点等至少一种可导电元件。此外，该导电部203作为阵列基板201的一组成部分，其能够在阵列基板201的制作过程中与阵列基板201中的像素驱动电路一起制作。
车载显示模组1000在搭载于诸如汽车等的车辆中之后，容易因车辆在行进过程中的晃动或颠簸而发生震动，这也就使得车载显示模组1000需要具备特别高的震动信赖性。因此，在车载显示模组1000的生产过程中，对车载显示模组1000进行震动信赖性测试，能够确保车载显示模组1000搭载于车辆中之后的使用可靠性。
然而，在对车载显示模组1000进行震动信赖性测试的过程中，经发明人研究发现：胶框300容易受力形变，显示面板200容易相对胶框300发生沿垂直于显示面方向上的位移，从而使得胶带100与显示面板200中的导电部203发生接触。由于粘接显示面板200和胶框300的胶带100(Cell Tape)通常具有导电性，因此，一旦胶带100与显示面板200中的导电部203发生接触，就会导致显示面板200中的部分电路短路，进而导致显示 面板200显示不良。基于此，本公开一些实施例提供了一种胶带100，以应用于车载显示模组1000中。请参阅图6，该胶带100包括：基材101、设置于基材101上的导电胶层102、以及设置于导电胶层102的部分粘接面上的绝缘层103。绝缘层103配置为绝缘导电胶层102和待粘接物内的导电部203。
此处，示例的，待粘接物为车载显示模组1000中的显示面板200。显示面板200内的导电部203位于阵列基板201的未被彩膜基板202覆盖的区域，导电部203包括：信号线走线或线路检测点等。
在利用胶带100将显示面板200粘接于对应的胶框300上之后，利用胶带100中设置的导电胶层102，能够有效提高显示面板200(也即对应车载显示模组1000)的静电释放(Electro-Static Discharge，简称ESD)抵抗能力。
本公开一些实施例将绝缘层103设置于导电胶层102的部分粘接面上，能够在导电胶层102有效粘接显示面板200的基础上，利用绝缘层103有效绝缘导电胶层102和显示面板200内的导电部203。
具体的，如图2所示，胶带100在粘接显示面板200和胶框300之后通常呈紧绷状态，胶带100的内表面(即其面向显示面板200的表面)与显示面板200的导电部203之间具有一定间隔，胶带100与导电部203之间可以通过空气绝缘。本公开一些实施例将绝缘层103设置于导电胶层102的部分粘接面上，这样在车载显示模组1000的长期使用过程中或者其信赖性测试过程中，如图4所示，即使车载显示模组1000中的胶框300发生形变，或显示面板200相对胶框300发生沿垂直于显示面方向上的位移，使得胶带100的内表面与显示面板200内的导电部203直接接触，也是胶带100中的绝缘层103与导电部203直接接触，从而能够避免胶带100中的导电胶层102与导电部203接触而导致车载显示模组1000出现短路不良的问题。
此外，在本公开一些实施例中，胶带100具备遮光性能，也即胶带100的至少一层的组成部分能够遮光，从而能够防止通过其粘接的车载显示模组1000从旁侧漏光。
在一些示例中，胶带100中的基材101为遮光基材，也即基材101采用不透光或透光率小于或等于10％的材料制作形成，例如黑色的聚酰亚胺。
在另一些示例中，胶带100中的导电胶层102为遮光导电胶层，也即导电胶层102采用不透光或透光率小于或等于10％的导电胶水制作形成，例如黑色的导电胶水。
在又一些示例中，胶带100中的基材101和导电胶层102均透光，请参阅图7，胶带100还包括设置于基材101与导电胶层102之间的遮光层104。遮光层104采用不透光或透光率小于或等于10％的材料制作形成，例如黑色油墨。
在本公开一些实施例中，如图7所示，胶带100还包括离型膜105，该离型膜105设置于绝缘层103的背离导电胶层102的表面，以及导电胶层102的未被绝缘层103覆盖的表面上。在胶带100的非使用状态，离型膜105能够对导电胶层102和绝缘层103进行保护。在胶带100的使用状态，将离型膜105揭除便可。
上述胶带100中的绝缘层103采用绝缘材料制作形成，绝缘层103采用单层结构或多层结构，均可。
在一些示例中，如图6所示，绝缘层103为单层结构，该绝缘层103为绝缘胶层或绝缘树脂层。这也就是说，绝缘层103采用绝缘胶水或绝缘树脂中的一种材料制作形成。示例的，绝缘层103通过涂覆工艺制作形成，操作简单，方便制作。
此外，可选的，绝缘胶水为丙烯酸胶水。绝缘树脂为聚对苯二甲酸乙二酯(Polyethylene Terephthalate，简称PET)或聚对苯二甲酸丁二醇酯(Polybutylene Terephthalate，简称PBT)。
在另一些示例中，如图11所示，绝缘层103为多层结构，该绝缘层103包括：沿背离基材101的方向层叠设置的至少一层绝缘树脂层1031，以及位于所述至少一层绝缘树脂层1031的背离基材101的表面上的绝缘胶层1032。这也就是说，绝缘层103采用绝缘树脂以及绝缘胶水两种材料制作形成，并且，由绝缘胶水制成的绝缘胶层1032覆盖于绝缘树脂层1031上。
本公开一些实施例在绝缘层103中设置绝缘胶层1032，能够在保证绝缘层103绝缘效果的前提下，确保胶带100整体的粘接强度及其粘接效果。
在本公开一些实施例中，请参阅图8和图9，绝缘层103在基材101上的正投影位于导电胶层102在基材101上的正投影内，且绝缘层103在基材101上的正投影的至少部分外轮廓与导电胶层102在基材101上的正投影的外轮廓之间具有间隔。
示例性的，如图8所示，绝缘层103设置于导电胶层102的中心区域，绝缘层103的整个边缘与导电胶层102的对应边缘之间具有间隔。或者，如图9所示，绝缘层103设置于导电胶层102的某一侧边缘，绝缘层103的部分边缘与导电胶层102的对应边缘之间具有间隔。
这样，能够确保导电胶层102不因绝缘层103的存在而被阻断其导电通路，从而确保胶带100仍具有导电性能以及良好的粘接性能，以有效提高显示面板200(也即对应车载显示模组1000)的静电释放抵抗能力，同时确保胶带100对显示面板200和胶框300实现牢固的粘接。
在一些示例中，如图8所示，胶带100呈长条状。绝缘层103的形状匹配胶带100的形状设置，绝缘层103也呈长条状。可选的，绝缘层103的宽度的取值范围为2㎜～4㎜。
此外，上述绝缘层103在导电胶层102上的设置位置，可以匹配对应待粘接物内的导电部所在的位置选择确定，本公开一些实施例对此不作限定。
在本公开一些实施例中，如图2所示，导电部203在阵列基板201上的正投影位于胶带100中绝缘层103在阵列基板201上的正投影内。可选的，导电部203与胶带100中的绝缘层103正对，且导电部203在阵列基板201上的正投影面积小于胶带100中绝缘层103在阵列基板201上的正投影面积，这样能够在胶带100与导电部203直接接触的情况下，利用绝缘层103良好绝缘导电胶层103和导电部203，从而避免车载显示模组1000因导电胶层102与导电部203接触而出现短路不良的问题。
在本公开另一些实施例中，如图3所示，显示面板200还包括：涂覆在导电部203上的保护层206。在导电部203上设置保护层206，能够利用保护层206有效保护导电部203的导电性能，也即防止外界对导电部203的导电性能产生不良影响。
示例性的，保护层206为光固化(Ultraviolet Rays，简称UV)胶层或室温硫化硅橡胶(Room Temperature Vulcanized Silicone Rubber，简称RTV)层。
在一些示例中，导电部203为信号线走线。在采用热压工艺将柔性线路板(Flexible Printed Circuit，简称FPC)与对应的信号线走线绑定后，在导电部203以及柔性线路板上涂覆UV胶层，能够利用UV胶层对各信号线走线及柔性线路板进行粘接固定和导电保护。受生产设备及生产工艺能力的限制，保护层206一般难以完全覆盖导电部203，也即会出现导电部203的边缘部分未被保护层206覆盖的问题。
在另一些示例中，导电部203包括多个线路检测点。各线路检测点裸露设置，无需涂覆保护层206。
基于此，导电部203的未被保护层206覆盖的部分在阵列基板201上的正投影应位于胶带100中绝缘层103在阵列基板201上的正投影内。可选的，导电部203与胶带100中的绝缘层103正对，且导电部203的未被保护层206覆盖的部分在阵列基板201上的正投影面积小于胶带100中绝 缘层103在阵列基板201上的正投影面积，这样便能够在胶带100与导电部203直接接触的情况下，利用绝缘层103良好绝缘导电胶层103和导电部203，从而避免车载显示模组1000因导电胶层102与导电部203接触而出现短路不良的问题。
上述胶带100配置为粘接显示面板200和胶框300，以实现对应车载显示模组1000的轻薄化，胶带100的厚度较薄，胶带100中绝缘层103的厚度根据实际需求选择设置即可。
基于此，在一些示例中，绝缘层103的厚度的取值范围为0.001㎜～0.030㎜，例如0.025㎜。此处，绝缘层103的厚度为其沿背离导电胶层102的方向上的尺寸。在绝缘层103为多层结构的情况下，绝缘层103的厚度为其每层组成部分的厚度之和。
在本公开一些实施例中，显示面板200还包括：设置于彩膜基板202的背离阵列基板201的一侧的第一偏光片204。彩膜基板202的未被第一偏光片204覆盖的部分与胶带100粘接，且胶带100的厚度小于或等于第一偏光片204的厚度。此处，胶带100的厚度和第一偏光片204的厚度分别为其沿背离彩膜基板202的方向上的尺寸。
这也就是说，在胶带100中设置绝缘层103之后，胶带100的厚度应小于或等于第一偏光片204的厚度。这样在利用胶带100将显示面板200粘接至胶框300上之后，由于胶带100与彩膜基板202的未被第一偏光片204覆盖的部分粘接，因此，以胶框300的配置为承载显示面板200的承载面为基准，胶带100的外表面不会高于第一偏光片204的背离彩膜基板202的表面，方便于在第一偏光片204上平整的安装玻璃盖板等其他附件。
在本公开一些实施例中，请继续参阅图2，显示面板200还包括设置于阵列基板201的背离彩膜基板202的一侧的第二偏光片205。车载显示模组1000还包括设置于第二偏光片205与胶框300的承载面之间的泡棉500。
此处，胶框300的承载面是指胶框300配置为承载显示面板200的表面。将泡棉500设置于胶框300与显示面板200之间，能够利用泡棉500对显示面板200进行支撑保护，例如利用泡棉500有效缓冲显示面板200的受力，以避免显示面板200受压破损。
在本公开一些实施例中，请参阅图3，车载显示模组1000还包括：设置于胶框300的背离显示面板200的一侧的背光模组400。胶带100还与背光模组400粘接，以对背光模组400和显示面板200进行固定。
背光模组400配置为向显示面板200提供背光，背光模组400的出光区通常与显示面板200的显示区AA对应设置。背光模组400的结构可以根据实际需求选择设置，本公开一些实施例对此不作限定。
在一些示例中，背光模组400包括底座401以及层叠设置于底座401上的背光源402、导光板403以及光学膜片组404。可选的，光学膜片组404包括至少一层功能膜片，例如层叠设置的扩散片和增亮片。
在一些实施例中，请参阅图5，车载显示模组1000还包括：屏驱动板600、与显示面板200电连接的柔性线路板601、以及与屏驱动板600及柔性线路板601分别电连接的连接器602。
此处，屏驱动板600也可称为逻辑(Timing Controller，简称T-con)板。屏驱动板600设置于背光模组400的背离显示面板200的一侧，配置为向显示面板200提供显示所需的时序信号、数据信号等信号。示例的，屏驱动板600为印刷线路板(Printed Circuit Board，简称PCB)。
柔性线路板601与显示面板200电连接，表现为其与显示面板200中的导电部203(例如信号线走线)电连接。在将柔性线路板601与显示面板200中的导电部203绑定后，弯折柔性线路板601，使得柔性线路板601的远离导电部203的一端通过连接器602与屏驱动板600电连接。
连接器602配置为连接柔性线路板601和屏驱动板600，其结构根据实际需求选择设置便可，本公开一些实施例对此不作限定。
上述一些实施例中的胶带100还与屏驱动板600粘接。也即，胶带100在粘接显示面板200、胶框300和背光模组400的同时，也会将屏驱动板600包裹在里面。连接器602在胶带100上的正投影应位于胶带100中绝缘层103所在的区域内。这也就是说，胶带100中导电胶层102与连接器602正对的部分也设有绝缘层103，从而能够在胶带100与连接器602直接接触的情况下，利用绝缘层103良好绝缘导电胶层103和连接器602，从而避免车载显示模组1000因导电胶层102与连接器602接触而出现短路不良的问题。
需要说明的是，与连接器602对应的绝缘层103、以及与导电部203对应的绝缘层103，可以为同一绝缘层(例如图8和图9所示)，或为相互独立设置的两绝缘层(例如图10所示)。
本公开一些实施例提供了一种车载显示装置。如图12所示，所述车载显示装置101包括前述一些实施例中的车载显示模组1000，其具有与前述一些实施例中车载显示模组1000相同的有益效果。由于前述一些实施例已经对车载显示模组1000的结构和有益效果进行了详细的描述，此处不再赘述。
在一些示例中，车载显示装置101为车载液晶显示装置。
在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种胶带，包括：
    基材；
    设置于所述基材上的导电胶层；以及，
    设置于所述导电胶层的部分粘接面上的绝缘层，所述绝缘层配置为绝缘所述导电胶层和待粘接物内的导电部。
  2. 根据权利要求1所述的胶带，其中，
    所述绝缘层为单层结构，所述绝缘层包括绝缘胶层或绝缘树脂层；
    或，所述绝缘层为多层结构，所述绝缘层包括：沿所述导电胶层的背离所述基材的方向层叠设置的至少一层绝缘树脂层，以及位于所述至少一层绝缘树脂层的背离所述基材的表面上的绝缘胶层。
  3. 根据权利要求1或2所述的胶带，其中，所述绝缘层在所述基材上的正投影位于所述导电胶层在所述基材上的正投影内，且所述绝缘层在所述基材上的正投影的至少部分外轮廓与所述导电胶层在所述基材上的正投影的外轮廓之间具有间隔。
  4. 根据权利要求3所述的胶带，其中，所述绝缘层的厚度的取值范围为0.001㎜～0.030㎜；所述绝缘层的厚度为其沿背离所述导电胶层的方向上的尺寸。
  5. 根据权利要求1～4任一项所述的胶带，其中，
    所述基材为遮光基材；
    或，所述导电胶层为遮光导电胶层；
    或，所述胶带还包括设置于所述基材与所述导电胶层之间的遮光层。
  6. 一种车载显示模组，包括：
    显示面板；
    承载所述显示面板的胶框；
    以及，与所述显示面板及所述胶框粘接且如权利要求1～5任一项所述 的胶带。
  7. 根据权利要求6所述的车载显示模组，其中，所述显示面板包括：
    阵列基板；
    彩膜基板；
    以及，位于所述阵列基板的未被所述彩膜基板覆盖的部分上的导电部，所述导电部在所述阵列基板上的正投影位于所述胶带中所述绝缘层在所述阵列基板上的正投影内。
  8. 根据权利要求6所述的车载显示模组，其中，所述显示面板包括：
    阵列基板；
    彩膜基板；
    位于所述阵列基板的未被所述彩膜基板覆盖的部分上的导电部；
    以及，涂覆在所述导电部上的保护层，所述保护层配置为保护所述导电部的导电性能；
    其中，所述导电部的未被所述保护层覆盖的部分在所述阵列基板上的正投影位于所述胶带中所述绝缘层在所述阵列基板上的正投影内。
  9. 根据权利要求8所述的车载显示模组，其中，所述保护层为光固化胶层或室温硫化硅橡胶层。
  10. 根据权利要求7～9任一项所述的车载显示模组，其中，所述导电部包括信号线走线或线路检测点。
  11. 根据权利要求7或8所述的车载显示模组，其中，所述显示面板，还包括：设置于所述彩膜基板的背离所述阵列基板的一侧的第一偏光片；
    所述彩膜基板的未被所述第一偏光片覆盖的部分与所述胶带粘接，且所述胶带的厚度小于或等于所述第一偏光片的厚度；其中，所述胶带的厚度和所述第一偏光片的厚度分别为其沿背离所述彩膜基板的方向上的尺寸。
  12. 根据权利要求6所述的车载显示模组，还包括：设置于所述胶框的背离所述显示面板的一侧的背光模组；所述胶带还与所述背光模组粘接。
  13. 根据权利要求6所述的车载显示模组，还包括：
    屏驱动板；
    与所述显示面板电连接的柔性线路板；
    与所述屏驱动板及所述柔性线路板分别电连接的连接器；
    其中，所述胶带还与所述屏驱动板粘接，所述连接器在所述胶带上的正投影位于所述胶带中所述绝缘层所在的区域内。
  14. 一种车载显示装置，包括如权利要求6～13任一项所述的车载显示模组。
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