WO2022222183A1 - 背光模组、车载显示面板及车辆 - Google Patents

背光模组、车载显示面板及车辆 Download PDF

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Publication number
WO2022222183A1
WO2022222183A1 PCT/CN2021/091519 CN2021091519W WO2022222183A1 WO 2022222183 A1 WO2022222183 A1 WO 2022222183A1 CN 2021091519 W CN2021091519 W CN 2021091519W WO 2022222183 A1 WO2022222183 A1 WO 2022222183A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
main body
backplane
vehicle
plastic frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/091519
Other languages
English (en)
French (fr)
Inventor
周政
宋岁忙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US17/295,074 priority Critical patent/US12197076B2/en
Publication of WO2022222183A1 publication Critical patent/WO2022222183A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • B60K2360/33—Illumination features
    • B60K2360/332—Light emitting diodes
    • 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
    • B60K2360/33—Illumination features
    • B60K2360/336—Light guides
    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a backlight module, a vehicle-mounted display panel and a vehicle.
  • liquid crystal display panels as vehicle display panels to display information such as speed and fuel consumption has become the mainstream of vehicle display technology development.
  • the LCD panel needs to be equipped with a backlight to achieve display, if the backlight fails, it will cause a full-screen black screen on the vehicle display panel, threatening the driving safety of the driver.
  • Embodiments of the present application provide a backlight module, a vehicle-mounted display panel, and a vehicle, which can improve the fault tolerance of the backlight module.
  • Embodiments of the present application provide a backlight module, including: a first backlight module and a second backlight module.
  • the first backlight module is provided with an opening, and the second backlight module is installed in the opening.
  • the types of the first backlight module and the second backlight module are different.
  • the first backlight module is one of a direct type backlight module or an edge type backlight module
  • the second backlight module is a direct type backlight module.
  • the direct type backlight module is a zone-controlled backlight module.
  • the first backlight module includes a first backplane
  • the second backlight module includes a second backplane; wherein the opening is provided in the first backplane On the back panel, the second back panel is detachably installed in the opening.
  • the first back plate includes a first main body part, a second main body part and an extension plate, the second main body part is located on the first main body part and the extension plate Between the plates, the first main body part and the extension plate are respectively vertically connected to the extension plate; the first main body part, the second main body part and the extension plate surround the opening, the
  • the second backlight module further includes a second plastic frame, the second plastic frame is fixed on the outside of the second backboard and can be detachably installed in the opening.
  • the first backlight module includes a first plastic frame
  • the first plastic frame includes a first connecting portion and a first supporting portion
  • the first connecting portion is fixed On the outside of the first main body portion, the first support portion extends from the end of the first connecting portion away from the second main body portion toward the center of the first backplane
  • the second The plastic frame includes a second connecting part and a second supporting part, the second connecting part is fixed on the outside of the second backboard and can be detachably installed in the opening, and the second supporting part is One end of the connecting portion away from the second main body portion extends toward the center of the second backplane.
  • a side surface of the first support portion away from the first backplane and a side surface of the second support portion away from the second backplane are located on the same side. level.
  • the first backlight module further includes a first light source located on the first backplane, and a diffuser plate located on the first light source; the first light source
  • the two backlight modules further include a second light source located on one side of the second backplane, and a light guide plate located on the second backplane, the side of the light guide plate facing the second light source.
  • the first light source includes a sub-millimeter light emitting diode or a micro light emitting diode.
  • the thermal conductivity of the first backplane is greater than the thermal conductivity of the second backplane.
  • the first back plate is a cast aluminum part
  • the second back plate is a sheet metal part
  • a side of the extension plate close to the opening is provided with a first engaging portion
  • an outer side of the second back plate is provided with a first engaging portion.
  • the second engaging portion is matched, and the second backboard is detachably installed in the opening through the first engaging portion and the second engaging portion.
  • Embodiments of the present application further provide a vehicle-mounted display panel, including any of the above-mentioned backlight modules and a panel body; the panel body includes a first display part and a second display part, and the first display part is located in the Above the first backlight module, the second display portion is located above the second backlight module.
  • the first backlight module includes a first backplane and a first plastic frame
  • the first backplane includes a first main body part, a second main body part and an extension plate
  • the second main body part is located between the first main body part and the extension plate
  • the first main body part and the extension plate are respectively vertically connected to the extension plate
  • the first plastic frame includes a first connection part and a first support part, the first connection part is fixed on the outer side of the first main body part, the first support part is from an end of the first connection part away from the second main body part extending toward the center of the first backplane.
  • the second backlight module includes a second back plate and a second plastic frame, the second plastic frame includes a second connecting portion and a second supporting portion, and the second connecting portion is fixed on the outside of the second back plate , the second support portion extends from the end of the second connecting portion away from the second main body portion toward the center of the second backplane; wherein, the panel body is mounted on the first support part and the second support part.
  • the vehicle-mounted display panel further includes foam glue, and the foam glue is located between the panel main body and the first support portion, and is located on the panel between the main body and the second support portion.
  • Embodiments of the present application also provide a vehicle, including any of the above-mentioned backlight modules or any of the above-mentioned vehicle-mounted display panels.
  • the backlight module includes: a first backlight module and a second backlight module.
  • the first backlight module is provided with an opening, and the second backlight module is installed in the opening.
  • the types of the first backlight module and the second backlight module are different, so that the first backlight module and the second backlight module can emit light independently, so that the first backlight module can emit light independently.
  • the other one of the first backlight module and the second backlight module is used to make the backlight module still have the ability to provide backlight. function to improve the fault tolerance of the backlight module.
  • FIGS. 1A to 1E are schematic structural diagrams of a backlight module provided by an embodiment of the present application.
  • FIGS. 2A to 2B are schematic diagrams of the installation structures of the first backlight module and the second backlight module provided by the embodiments of the present application;
  • 3A to 3B are schematic structural diagrams of a vehicle-mounted display panel provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a panel body provided by an embodiment of the present application.
  • FIGS. 1A to 1E are schematic structural diagrams of a backlight module provided by an embodiment of the present application; an embodiment of the present application provides a backlight module, and the backlight module includes a first backlight module 101 and a first backlight module 101 . Two backlight modules 102 .
  • the first backlight module 101 is provided with an opening 101a.
  • the number of the openings 101a provided on the first backlight module 101 is not limited to one; in a top view, the shapes of the openings 101a are not limited to shapes such as circles, polygons, and ellipses.
  • the second backlight module 102 is installed in the opening 101 a so that the second backlight module 102 is nested in the first backlight module 101 .
  • the first backlight module 101 and the second backlight module 102 can emit light independently, so that when one of the first backlight module 101 or the second backlight module 102 fails, Through the other one of the first backlight module 101 or the second backlight module 102, the backlight module can still achieve the function of providing backlight, thereby improving the fault tolerance of the backlight module.
  • first backlight module 101 and the second backlight module 102 are different, so that the first backlight module 101 and the second backlight module 102 can be controlled according to different backlight types. It realizes independent lighting and improves the fault tolerance of the backlight module.
  • the first backlight module 101 is one of a direct type backlight module or an edge type backlight module
  • the second backlight module 102 is a direct type backlight module or an edge type backlight module. the other of the group.
  • the direct type backlight module may be a backlight module that adopts partition control, or a backlight module that adopts overall control.
  • the first backlight module 101 is a direct type backlight module
  • the direct type backlight module is a backlight module using partition control
  • the second backlight module 102 is an edge-type backlight module.
  • the specific structure of the backlight module is described by taking a group as an example.
  • the first backlight module 101 includes a first backplane 1011 , a first light source 1012 and a diffuser plate 1013
  • the second backlight module 102 includes a second backplane 1021 , a second light source 1022 and a light guide plate 1023 .
  • the opening 101a is disposed on the first backplane 1011, and the second backplane 1021 is detachably installed in the opening 101a, so that the first backlight module 101 and the second The backlight module 102 can be detachably installed.
  • the first back plate 1011 includes a main body 1011a and an extension plate 1011b, and the extension plate 1011b extends from one side of the middle of the main body 1011a in a direction away from the main body 1011a, so that the main body 1011a and The extension plates 1011b all surround the opening 101a.
  • the arrangement position of the opening 101a is not limited to the middle of the first backplane 1011 .
  • the body 1011a includes a first body portion 1011c and a second body portion 1011d, the second body portion 1011d is located between the first body portion 1011c and the extension plate 1011b, and the first body portion 1011c
  • the extension plate 1011b is vertically connected to the second body portion 1011d, so as to connect the first body portion 1011c and the extension through the second body portion 1011d. Board 1011b.
  • the first light source 1012 is located on the second main body portion 1011d of the first back plate 1011
  • the diffusion plate 1013 is located on the side of the first light source 1012 away from the second main body portion 1011d
  • the diffusion plate 1013 surrounds the extension plate 1011b, so that the first light source 1012 cooperates with the local dimming function, so that the luminous intensity of the plurality of first light sources 1012 in the first backlight module 101 can be adjusted , so as to realize the partition control of the plurality of first light sources 1012 in the first backlight module 101, so that the first backlight module 101 is a backlight module using partition control.
  • the diffuser plate 1013 can be fixed on the first light source 1012 through a support block 1025, so that there is a certain interval between the first light source 1012 and the diffuser plate 1013, so that a plurality of all The light emitted by the first light source 1012 can be irradiated to each area of the diffusion plate 1013 .
  • the support block 1025 can be mounted on the main body 1011a by double-sided tape.
  • the second light source 1022 is located on one side of the second backplane 1021 , the light guide plate 1023 is located on the second backplane 1021 , and the side of the light guide plate 1023 faces the second light source 1022 , the luminous intensity of the plurality of second light sources 1022 in the second backlight module 102 is controlled simultaneously, and the light emitted by the plurality of second light sources 1022 is output after being uniformized by the light guide plate 1023, The overall control of the plurality of second light sources 1022 in the second backlight module 102 is realized, so that the second backlight module 102 is a backlight module that adopts overall control.
  • the first light source 1012 and/or the second light source 1022 include sub-millimeter light emitting diodes or micro light emitting diodes; the number of the first light sources 1012 included in the first backlight module 101 is greater than that of all The number of the second light sources 1022 included in the second backlight module 102, the first light sources 1012 are mounted on the main body 1011a by thermally conductive adhesive, and the second light sources 1022 are mounted on the first light source 1011a by thermally conductive adhesives.
  • One side of the second backplane 1021 is .
  • the thermal conductivity of the first backplane 1011 is greater than the thermal conductivity of the second backplane 1021, so that the first backplane 1011 has better heat dissipation performance.
  • the structural strength of the first backplane 1011 is greater than the structural strength of the second backplane 1021 .
  • the first backplane 1011 is a cast aluminum part; the second backplane 1021 is a sheet metal part or a cast aluminum part. It can be understood that the number of the first light source 1012 and the second light source 1022 can be set according to actual needs, and details are not repeated here.
  • the backlight module further includes an optical layer 103, the optical layer 103 is located on the side of the light guide plate 1023 away from the second back plate 1021, and is located on the diffuser plate 1013 away from the first One side of the light source 1012.
  • FIGS. 2A to 2B are schematic structural diagrams of a first backplane and a second backplane provided by an embodiment of the present application.
  • a first clamping portion 1001 is provided on a side of the extension plate 1011b close to the opening 101a.
  • the outer side of the second back plate 1021 is provided with a second clamping part 1002, the first clamping part 1001 and the second clamping part 1002 cooperate with each other, so that the second back plate 1021 can be disassembled installed in the opening 101a.
  • the first engaging portion 1001 is a groove
  • the second engaging portion 1002 is a protrusion, so that the second engaging portion 1002 is snapped into the first engaging portion 1001, As shown in FIG. 2A ; or, the first engaging portion 1001 is a protrusion, the second engaging portion 1002 is a groove, and the first engaging portion 1001 is inserted into the second engaging portion 1002 or, the first engaging portion 1001 and the second engaging portion 1002 adopt a snap-fit structure design, as shown in FIG. 2B , the first engaging portion 1001 penetrates through the extension plate 1011b, and the The second engaging portion 1002 includes a guide portion and a positioning portion.
  • the guide portion is used to guide the positioning portion to be smoothly installed on the side 1011e of the extension plate 1011b away from the second back plate 1021 .
  • the positioning portion is installed on the side 1011 e of the extension plate 1011 b away from the second back plate 1021 .
  • the opening 101a is circular in a top view
  • the first engaging portion 1001 and the second engaging portion 1002 may also adopt a screw connection design.
  • the outer side of the second back plate 1021 is provided with an external thread
  • the side of the extension plate 1011b close to the opening 101a is provided with an internal thread matched with the external thread, that is, the first snap connection
  • the portion 1001 is provided in the form of an external thread
  • the second engaging portion 1002 is provided in the form of an internal thread.
  • the design of the first clamping portion 1001 and the second clamping portion 1002 using the buckle structure is not limited to the form shown in FIG. 2B .
  • the second engaging portion 1002 has a first raised height h1, and the first raised height h1 is equal to 1.5 mm, so as to prevent the second back plate 1021 from being detachably installed in the opening 101a When inside, the second backplane 1021 is irreversibly deformed, which damages the second backplane 1021 .
  • the first backplane 1011 may be provided with a plurality of the first engaging portions 1001 , and correspondingly, a plurality of the second engaging portions 1002 may be provided on the outer side of the second backplane 1021 , This ensures that when the second backplane 1021 is installed in the opening 101a, the second backplane 1021 will not be separated from the first backplane 1011, thereby improving the reliability of the installation.
  • the second backlight module 102 further includes a second plastic frame 1024,
  • the second plastic frame 1024 is fixed on the outer side of the second backboard 1021 , and is detachably installed in the opening 101 a , so as to realize the detachable installation of the second backboard 1021 .
  • the second plastic frame 1024 is slightly deformed until the second clamping portion 1002 is aligned with the first clamping portion 1001, the micro deformation of the second plastic frame 1024 disappears, and the The second plastic frame 1024 is installed into the opening 101a.
  • the second engaging portion 1002 is disposed on the side of the second plastic frame 1024 away from the second backplane 1021 , and the second light source 1022 is located on the second backplane 1021 away from the second backplane 1021 .
  • One side of the second plastic frame 1024 is disposed on the side of the second plastic frame 1024 .
  • the second plastic frame 1024 is an injection molded part, and the preparation material of the second plastic frame 1024 includes thermoplastic resin. Further, the preparation material of the second plastic frame 1024 includes polycarbonate.
  • the first backlight module 101 further includes a first plastic frame 1014, the first plastic frame 1014 includes a first connecting portion 1003 and a first supporting portion 1004, the first connecting portion 1003 is located at The outside of the main body 1011a, that is, the first connecting portion 1003 is located outside the first main body portion 1011c.
  • the first support portion 1004 extends from the end of the first connection portion 1003 away from the main body 1011a toward the center of the first backplane 1011 , that is, the first support portion 1004 extends from the first backplane 1011 .
  • One end of the connecting portion 1003 away from the second main body portion 1011d extends toward the side of the extension plate 1011b.
  • the second plastic frame 1024 includes a second connecting portion 1005 and a second supporting portion 1006.
  • the second connecting portion 1005 is fixed on the outer side of the second back plate 1021 and can be detachably installed in the opening 101a, so the The second support portion 1006 extends from the end of the second connection portion 1005 away from the second main body portion 1011d toward the center of the second back plate 1021 , and the first support portion 1004 is away from the first support portion 1004 .
  • a side surface 1004a of a backplane 1011 and a side surface 1006a of the second support portion 1006 away from the second backplane 1021 are located at the same level to provide support for subsequent installation of the panel body.
  • first backlight module 101 may also be an edge-lit backlight module
  • second backlight module 102 may be a direct-lit backlight module using overall control or partition control, which will not be repeated here.
  • the manner in which the first backlight module 101 and the second backlight module 102 can emit light independently is not limited to being realized by different types of the first backlight module 101 and the second backlight module 102 .
  • the first backlight module 101 and the second backlight module 102 are of the same type, they can also be implemented by setting different control circuits or different control types, which will not be repeated here.
  • the same type of the first backlight module 101 and the second backlight module 102 includes the following situations: the first backlight module 101 may be a direct type backlight module using partition control, the second backlight module
  • the backlight module 102 is a direct-type backlight module that adopts overall control or partition control; or, the first backlight module 101 is a direct-type backlight module that adopts overall control, and the second backlight module 102 adopts the overall A direct-lit backlight module controlled or controlled by zone; or, the first backlight module 101 and the second backlight module 102 are both edge-lit backlight modules.
  • Embodiments of the present application further provide a vehicle-mounted display panel, wherein the vehicle-mounted display panel includes any one of the above-mentioned backlight modules.
  • FIG. 3A to FIG. 3B are schematic structural diagrams of a vehicle-mounted display panel provided by an embodiment of the present application.
  • An embodiment of the present invention further provides a vehicle-mounted display panel, the vehicle-mounted display panel includes the above-mentioned backlight module and the panel main body 300 .
  • the panel body 300 includes a first display part 300a and a second display part 300b, the first display part 300a is located above the first backlight module 101 of the backlight module, and the second display part 300b It is located above the second backlight module 102 of the backlight module.
  • first backlight module 101 and the second backlight module 102 can independently provide backlights for the first display part 300a and the second display part 300b, respectively, in the first backlight module
  • the other one of the first backlight module 101 or the second backlight module 102 can be used to cooperate with the panel body 300 to ensure The vehicle-mounted display panel still has a certain display function.
  • the panel body 300 is installed on the side surface 1004a of the first support portion 1004 away from the first backplane 1011 and the second support portion 1006 on the side surface of the second support portion 1006 away from the second backplane 1021 1006a, to provide support for the panel body 300 through the first support portion 1004 and the second support portion 1006.
  • the vehicle-mounted display panel further includes a foam glue 301, and the foam glue 301 is located between the panel main body 300 and the first support portion 1004, and between the panel main body 300 and the second support portion 1004. between the support parts 1006 .
  • the first display part 300a is The second display part 300b has a higher contrast ratio, and when the external ambient light is strong, the content displayed on the first display part 300a is clearer than the content displayed on the second display part 300b.
  • the first display part 300a is used to display information such as vehicle speed and mileage, and the second display part 300b can be used to display tire pressure, fuel consumption and other information in a fixed manner. Wherein, the display content of the first display part 300a can be adjusted according to actual needs, which will not be repeated here.
  • the display size of the second display portion 300b is less than or equal to 0.5 times the display size of the vehicle-mounted display panel.
  • the display size of the second display portion 300b is 4.2 inches or 3.5 inches; when the display size of the vehicle-mounted display panel is 26.3 inches, the second display portion 300b has a display size of 26.3 inches.
  • the 300b has a display size of 7 inches or 8 inches.
  • the arrangement position of the opening 101a is not limited to the middle of the first backplane 1011 . It can be understood that the number of the openings 101a is not limited to one.
  • the opening 101a may further include a first opening, a second opening, and the like
  • the second backlight module 102 includes a first sub-backlight module installed in the first opening, and a first sub-backlight module installed in the second opening.
  • the second sub-backlight module, etc., the second display part 300b includes a first sub-display part located above the first sub-backlight module, and a second sub-display located above the second sub-backlight module Department, etc.
  • the backlight control type adopted by at least one of the first sub-backlight module, the second sub-backlight module, etc. is different from the backlight control type adopted by the first backlight module 101 .
  • at least one of the first sub-backlight module, the second sub-backlight module, etc. is of a different type from the first backlight module 101, and details are not described herein again.
  • FIG. 4 is a schematic structural diagram of a panel body provided by an embodiment of the present application.
  • the panel body 300 includes an array substrate 302 , a color filter substrate 303 , a polarizer 304 , and is located between the array substrate 302 and the color filter substrate 303 The sealant 305 and the liquid crystal 306.
  • the liquid crystal 306 includes positive liquid crystal and negative liquid crystal.
  • the panel body 300 further includes a common electrode, a pixel electrode, a touch electrode, an alignment layer, a color filter layer, and other parts that are not shown.
  • Embodiments of the present application further provide a vehicle, the vehicle includes any of the above vehicle-mounted display panels, and the first backlight module and the second backlight module cooperate with the panel body to achieve display.
  • the vehicle-mounted display panel includes any of the above vehicle-mounted display panels
  • the first backlight module and the second backlight module cooperate with the panel body to achieve display.
  • the first backlight module or the second backlight module fails, use the other one of the first backlight module or the second backlight module to cooperate with the panel body
  • Ensuring that the vehicle-mounted display panel still has a certain display function can help improve the fault tolerance of the backlight module, improve the reliability and stability of the vehicle-mounted display panel, and help ensure driving safety.
  • the vehicle-mounted display panel can be used as a central control display, instrument display, rearview mirror display, head-up display, and the like.

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Abstract

本申请公开一种背光模组、车载显示面板及车辆，背光模组包括第一背光模组和第二背光模组。第一背光模组设有开口，第二背光模组安装于开口内。第一背光模组与第二背光模组的类型不同，以使第一背光模组与第二背光模组可按照不同的背光控制类型实现单独发光，改善背光模组的容错性。

Description

背光模组、车载显示面板及车辆 技术领域
本申请涉及显示技术领域，特别涉及一种背光模组、一种车载显示面板及一种车辆。
 背景技术
利用液晶显示面板作为车载显示面板以显示时速、油耗等信息，成为车载显示技术发展的主流。但由于液晶显示面板需搭配背光源才能实现显示，若背光源出现故障，就会引起车载显示面板出现全屏黑屏的问题，威胁驾驶员的行车安全。
 技术问题
本申请实施例提供一种背光模组、一种车载显示面板及一种车辆，可以改善背光模组的容错性。
 技术解决方案
本申请的实施例提供一种背光模组，包括：第一背光模组和第二背光模组。所述第一背光模组设有开口，所述第二背光模组安装于所述开口内。其中，所述第一背光模组与所述第二背光模组的类型不同。
可选地，在本申请的一些实施例中，所述第一背光模组为直下式背光模组或侧入式背光模组的其中一者，所述第二背光模组为直下式背光模组或侧入式背光模组的其中另一者。
可选地，在本申请的一些实施例中，所述直下式背光模组为分区控制的背光模组。
可选地，在本申请的一些实施例中，所述第一背光模组包括第一背板，所述第二背光模组包括第二背板；其中，所述开口设置于所述第一背板上，所述第二背板可拆卸地安装于所述开口内。
可选地，在本申请的一些实施例中，所述第一背板包括第一主体部、第二主体部和延伸板，所述第二主体部位于所述第一主体部和所述延伸板之间，所述第一主体部和所述延伸板分别与所述延伸板垂直相接；所述第一主体部、所述第二主体部及所述延伸板环绕所述开口，所述第二背光模组还包括第二胶框，所述第二胶框固定于所述第二背板外侧并可拆卸地安装于所述开口内。
可选地，在本申请的一些实施例中，所述第一背光模组包括第一胶框，所述第一胶框包括第一连接部和第一支撑部，所述第一连接部固定于所述第一主体部的外侧，所述第一支撑部自所述第一连接部的远离所述第二主体部的一端朝向所述第一背板的中心延伸而出；所述第二胶框包括第二连接部和第二支撑部，所述第二连接部固定于所述第二背板外侧并可拆卸地安装于所述开口内，所述第二支撑部自所述第二连接部的远离所述第二主体部的一端朝向所述第二背板的中心延伸而出。
可选地，在本申请的一些实施例中，所述第一支撑部远离所述第一背板的一侧表面和所述第二支撑部远离所述第二背板的一侧表面位于同一水平面。
可选地，在本申请的一些实施例中，所述第一背光模组还包括位于所述第一背板上的第一光源，以及位于所述第一光源上的扩散板；所述第二背光模组还包括位于所述第二背板上的一侧的第二光源，以及位于所述第二背板上的导光板，所述导光板的侧部正对所述第二光源。
可选地，在本申请的一些实施例中，所述第一光源包括次毫米发光二极管或微型发光二极管。
可选地，在本申请的一些实施例中，所述第一背板的导热系数大于所述第二背板的导热系数。
可选地，在本申请的一些实施例中，所述第一背板为铸铝件，所述第二背板为钣金件。
可选地，在本申请的一些实施例中，所述延伸板靠近所述开口的一侧设置有第一卡接部，所述第二背板的外侧设置有与所述第一卡接部配合的第二卡接部，所述第二背板通过所述第一卡接部和所述第二卡接部可拆卸地安装于所述开口内。
本申请的实施例还提供一种车载显示面板，包括上述任一所述背光模组及面板主体；所述面板主体包括第一显示部和第二显示部，所述第一显示部位于所述第一背光模组的上方，所述第二显示部位于所述第二背光模组的上方。
可选地，在本申请的一些实施例中，所述第一背光模组包括第一背板和第一胶框；所述第一背板包括第一主体部、第二主体部和延伸板，所述第二主体部位于所述第一主体部和所述延伸板之间，所述第一主体部和所述延伸板分别与所述延伸板垂直相接；所述第一胶框包括第一连接部和第一支撑部，所述第一连接部固定于所述第一主体部的外侧，所述第一支撑部自所述第一连接部的远离所述第二主体部的一端朝向所述第一背板的中心延伸而出。
所述第二背光模组包括第二背板和第二胶框，所述第二胶框包括第二连接部和第二支撑部，所述第二连接部固定于所述第二背板外侧，所述第二支撑部自所述第二连接部的远离所述第二主体部的一端朝向所述第二背板的中心延伸而出；其中，所述面板主体安装于所述第一支撑部和所述第二支撑部上。
可选地，在本申请的一些实施例中，所述车载显示面板还包括泡棉胶，所述泡棉胶位于所述面板主体与所述第一支撑部之间，以及，位于所述面板主体与所述第二支撑部之间。
本申请的实施例还提供一种车辆，包括任一上述的背光模组或任一上述的车载显示面板。
 有益效果
相较于现有技术，本申请的实施例提供的背光模组、车载显示面板及车辆，所述背光模组包括：第一背光模组和第二背光模组。所述第一背光模组设有开口，所述第二背光模组安装于所述开口内。其中，所述第一背光模组与所述第二背光模组的类型不同，以使所述第一背光模组与所述第二背光模组可实现单独发光，从而使所述第一背光模组与所述第二背光模组的其中一者出现故障时，利用所述第一背光模组与所述第二背光模组中的另一者使所述背光模组仍具有提供背光的功能，改善所述背光模组的容错性。
 附图说明
图1A~图1E是本申请实施例提供的背光模组的结构示意图；
图2A~图2B是本申请实施例提供的第一背光模组和第二背光模组的安装结构示意图；
图3A~图3B是本申请实施例提供的车载显示面板的结构示意图；
图4是本申请实施例提供的面板主体的结构示意图。
 本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
具体地，请参阅图1A~图1E是本申请实施例提供的背光模组的结构示意图；本申请的实施例提供一种背光模组，所述背光模组包括第一背光模组101和第二背光模组102。
所述第一背光模组101上设有开口101a。可选地，所述第一背光模组101上设置的所述开口101a的数量不限于一个；在俯视视角下，所述开口101a的形状不限于圆形、多边形、椭圆形等形状。
所述第二背光模组102安装于所述开口101a内，以使所述第二背光模组102嵌套于所述第一背光模组101内。
其中，所述第一背光模组101与所述第二背光模组102可独立发光，以在所述第一背光模组101或所述第二背光模组102中的一者出现故障时，通过所述第一背光模组101或所述第二背光模组102中的另一者使所述背光模组仍可以实现提供背光的功能，从而提高所述背光模组的容错性。
进一步地，所述第一背光模组101与所述第二背光模组102的类型不同，以使所述第一背光模组101与所述第二背光模组102可按照不同的背光控制类型实现单独发光，提高所述背光模组的容错性。
可选地，所述第一背光模组101为直下式背光模组或侧入式背光模组的其中一者，所述第二背光模组102为直下式背光模组或侧入式背光模组的其中另一者。
可选地，所述直下式背光模组可为采用分区控制的背光模组，或为采用整体控制的背光模组。
进一步地，以所述第一背光模组101为直下式背光模组，且所述直下式背光模组为采用分区控制的背光模组，所述第二背光模组102为侧入式背光模组为例对所述背光模组的具体结构进行说明。
具体地，所述第一背光模组101包括第一背板1011、第一光源1012及扩散板1013，所述第二背光模组102包括第二背板1021、第二光源1022及导光板1023。
其中，所述开口101a设置于所述第一背板1011上，所述第二背板1021可拆卸地安装于所述开口101a内，从而使所述第一背光模组101与所述第二背光模组102实现可拆卸安装。
具体地，所述第一背板1011包括主体1011a和延伸板1011b，所述延伸板1011b自所述主体1011a的中部的一侧朝向远离所述主体1011a的方向延伸，以使所述主体1011a和所述延伸板1011b均环绕所述开口101a。可选地，在俯视视角下，所述开口101a的设置位置不限于所述第一背板1011的中部。
其中，所述主体1011a包括第一主体部1011c和第二主体部1011d，所述第二主体部1011d位于所述第一主体部1011c与所述延伸板1011b之间，所述第一主体部1011c与所述第二主体部1011d垂直相接，所述延伸板1011b与所述第二主体部1011d垂直相接，以通过所述第二主体部1011d连接所述第一主体部1011c和所述延伸板1011b。所述第一光源1012位于所述第一背板1011的所述第二主体部1011d上，所述扩散板1013位于所述第一光源1012远离所述第二主体部1011d的一侧，且所述扩散板1013环绕所述延伸板1011b，以使所述第一光源1012配合局部调光功能，使所述第一背光模组101内的多个所述第一光源1012的发光强度均可调，以实现对所述第一背光模组101中多个所述第一光源1012的分区控制，从而使所述第一背光模组101为采用分区控制的背光模组。可选地，所述扩散板1013可通过支撑块1025固定于所述第一光源1012上，以使所述第一光源1012与所述扩散板1013之间具有一定的间隔，从而使多个所述第一光源1012发出的光可照射至所述扩散板1013的各区域。其中，所述支撑块1025可通过双面胶安装于所述主体1011a上。
所述第二光源1022位于所述第二背板1021的一侧，所述导光板1023位于所述第二背板1021上，且所述导光板1023的侧部正对所述第二光源1022，对所述第二背光模组102内的多个所述第二光源1022的发光强度进行同时控制，且多个所述第二光源1022发出的光经所述导光板1023均匀化后输出，实现对所述第二背光模组102中多个所述第二光源1022的整体控制，从而使所述第二背光模组102为采用整体控制的背光模组。
可选地，所述第一光源1012和/或所述第二光源1022包括次毫米发光二极管或微型发光二极管；所述第一背光模组101中包括的所述第一光源1012的数量大于所述第二背光模组102中包括的所述第二光源1022的数量，所述第一光源1012通过导热胶安装于所述主体1011a上，所述第二光源1022通过导热胶安装于所述第二背板1021的一侧。进一步地，所述第一背板1011的导热系数大于所述第二背板1021的导热系数，以使所述第一背板1011具有较好的散热性能。进一步地，所述第一背板1011的结构强度大于所述第二背板1021的结构强度。可选地，基于成本及制程难度方面考量，所述第一背板1011为铸铝件；所述第二背板1021为钣金件或铸铝件。可以理解的，所述第一光源1012、所述第二光源1022的数量可根据实际需求设置，在此不再进行赘述。
进一步地，所述背光模组还包括光学层103，所述光学层103位于所述导光板1023远离所述第二背板1021的一侧，以及，位于所述扩散板1013远离所述第一光源1012的一侧。
如图2A~图2B所示是本申请的实施例提供的第一背板与第二背板的结构示意图，所述延伸板1011b靠近所述开口101a的一侧设置有第一卡接部1001，所述第二背板1021的外侧设置有第二卡接部1002，所述第一卡接部1001和所述第二卡接部1002相互配合，以使所述第二背板1021可拆卸地安装于所述开口101a内。
可选地，所述第一卡接部1001为凹槽，所述第二卡接部1002为凸起，以使所述第二卡接部1002卡入所述第一卡接部1001内，如图2A所示；或，所述第一卡接部1001为凸起，所述第二卡接部1002为凹槽，所述第一卡接部1001卡入所述第二卡接部1002内；或，所述第一卡接部1001与所述第二卡接部1002采用卡扣结构设计，如图2B所示，所述第一卡接部1001贯穿所述延伸板1011b，所述第二卡接部1002包括引导部和定位部，所述引导部用于引导所述定位部顺利安装于所述延伸板1011b远离所述第二背板1021的一侧1011e，在所述第二背板1021安装于所述开口101a内时，所述定位部安装于所述延伸板1011b远离所述第二背板1021的一侧1011e。可以理解的，在俯视视角下，所述开口101a为圆形时，所述第一卡接部1001与所述第二卡接部1002还可采用螺纹连接设计。具体地，所述第二背板1021的外侧设置有外螺纹，所述延伸板1011b靠近所述开口101a的一侧设置有与所述外螺纹相配合的内螺纹，即所述第一卡接部1001设置为外螺纹的形式，所述第二卡接部1002设置为内螺纹的形式。
可以理解的，所述第一卡接部1001与所述第二卡接部1002采用卡扣结构的设计不限于图2B所示的形式。可选地，所述第二卡接部1002具有第一凸起高度h1，所述第一凸起高度h1等于1.5mm，以避免所述第二背板1021可拆卸地安装于所述开口101a内时，所述第二背板1021出现不可逆变形，损伤所述第二背板1021。
可选地，所述第一背板1011上可设有多个所述第一卡接部1001，相应地，所述第二背板1021外侧设有多个所述第二卡接部1002，以保证所述第二背板1021安装于所述开口101a内时，所述第二背板1021不会与所述第一背板1011发生脱离，提高安装的可靠性。
进一步地，为避免在所述第二背板1021可拆卸地安装于所述开口101a内时，损伤所述第二背板1021，所述第二背光模组102还包括第二胶框1024，所述第二胶框1024固定于所述第二背板1021外侧，并可拆卸地安装于所述开口101a内，以实现所述第二背板1021的可拆卸安装。在安装时，所述第二胶框1024发生微变形，直至所述第二卡接部1002与所述第一卡接部1001对准时，所述第二胶框1024的微变形消失，所述第二胶框1024被安装至所述开口101a内。
更进一步地，所述第二卡接部1002设置于所述第二胶框1024远离所述第二背板1021的一侧，所述第二光源1022位于所述第二背板1021远离所述第二胶框1024的一侧。
可选地，所述第二胶框1024为注塑件，所述第二胶框1024的制备材料包括热塑性树脂。进一步地，所述第二胶框1024的制备材料包括聚碳酸酯。
请继续参阅图1C，所述第一背光模组101还包括第一胶框1014，所述第一胶框1014包括第一连接部1003和第一支撑部1004，所述第一连接部1003位于所述主体1011a外侧，即所述第一连接部1003位于所述第一主体部1011c外侧。所述第一支撑部1004自所述第一连接部1003的远离所述主体1011a的一端朝向所述第一背板1011的中心延伸而出，即所述第一支撑部1004自所述第一连接部1003的远离所述第二主体部1011d的一端朝向所述延伸板1011b的一侧延伸而出。所述第二胶框1024包括第二连接部1005和第二支撑部1006，所述第二连接部1005固定于所述第二背板1021外侧并可拆卸地安装于所述开口101a内，所述第二支撑部1006自所述第二连接部1005的远离所述第二主体部1011d的一端朝向所述第二背板1021的中心延伸而出，所述第一支撑部1004远离所述第一背板1011的一侧表面1004a和所述第二支撑部1006远离所述第二背板1021的一侧表面1006a位于同一水平面，以为后续安装面板主体提供支撑。
此外，所述第一背光模组101还可为侧入式背光模组，所述第二背光模组102为采用整体控制或分区控制的直下式背光模组，在此不再进行赘述。可以理解的，所述第一背光模组101与所述第二背光模组102实现单独发光的方式不限于通过所述第一背光模组101和所述第二背光模组102的类型不同实现。在所述第一背光模组101和所述第二背光模组102的类型相同的情况下，还可通过设置不同的控制电路或不同的控制类型实现，在此不再进行赘述。其中，所述第一背光模组101和所述第二背光模组102的类型相同包括以下情况：所述第一背光模组101可为采用分区控制的直下式背光模组，所述第二背光模组102为采用整体控制或分区控制的直下式背光模组；或，所述第一背光模组101为采用整体控制的直下式背光模组，所述第二背光模组102为采用整体控制或分区控制的直下式背光模组；或，所述第一背光模组101与所述第二背光模组102均为侧入式背光模组。
本申请的实施例还提供一种车载显示面板，所述车载显示面板包括任一上述的背光模组。
如图3A~图3B是本申请实施例提供的车载显示面板的结构示意图。本发明的实施例还提供一种车载显示面板，所述车载显示面板包括上述的背光模组及面板主体300。
所述面板主体300包括第一显示部300a和第二显示部300b，所述第一显示部300a位于所述背光模组的所述第一背光模组101的上方，所述第二显示部300b位于所述背光模组的所述第二背光模组102上方。
其中，由于所述第一背光模组101和所述第二背光模组102可分别独立为所述第一显示部300a和所述第二显示部300b提供背光，因此在所述第一背光模组101或所述第二背光模组102中的一者出现故障时，可利用所述第一背光模组101或所述第二背光模组102中的另一者配合所述面板主体300保证所述车载显示面板仍具有一定的显示功能。
具体地，所述面板主体300安装于所述第一支撑部1004远离所述第一背板1011的一侧表面1004a和所述第二支撑部1006远离所述第二背板1021的一侧表面1006a上，以通过所述第一支撑部1004、所述第二支撑部1006为所述面板主体300提供支撑。
进一步地，所述车载显示面板还包括泡棉胶301，所述泡棉胶301位于所述面板主体300与所述第一支撑部1004之间，以及位于所述面板主体300与所述第二支撑部1006之间。
进一步地，在所述第一背光模组101为分区控制的背光模组，所述第二背光模组102为采用整体控制的背光模组时，所述第一显示部300a相较于所述第二显示部300b具有更高的对比度，在外部环境光线较强的情况下，所述第一显示部300a的显示的内容较所述第二显示部300b的显示的内容更清晰。可选地，所述第一显示部300a用于显示车速、里程等信息，所述第二显示部300b可用于固定显示胎压、油耗等信息。其中，所述第一显示部300a的显示内容可根据实际需求进行调整，在此不再进行赘述。
更进一步地，为具有相同显示面积的所述面板主体300提供背光时，所述第一背光模组101所包括的所述第一光源1012的数量会大于所述第二背光模组102所包括的所述第二光源1022的数量，由此会致使所述背光模组的制造成本增大。但所述第一背光模组101所包括的所述第一光源1012的数量越多，所述第一显示部300a的显示画质越细腻。因此为兼顾制造成本及显示效果，所述第二显示部300b的显示尺寸小于或等于所述车载显示面板的显示尺寸的0.5倍。如所述车载显示面板的显示尺寸为12.3英寸时，所述第二显示部300b的显示尺寸为4.2英寸或3.5英寸；所述车载显示面板的显示尺寸为26.3英寸时，所述第二显示部300b的显示尺寸为7英寸或8英寸。可选地，在俯视视角下，所述开口101a的设置位置不限于所述第一背板1011的中部。可以理解的，所述开口101a的数量不限于一个。具体地，所述开口101a还可以包括第一开口、第二开口等，所述第二背光模组102包括安装所述第一开口内的第一子背光模组、安装于所述第二开口内的第二子背光模组等，所述第二显示部300b包括位于所述第一子背光模组上方的第一子显示部、位于所述第二子背光模组上方的第二子显示部等。其中，所述第一子背光模组、所述第二子背光模组等中的至少一个采用的背光控制类型与所述第一背光模组101采用的背光控制类型不同。进一步地，所述第一子背光模组、所述第二子背光模组等中的至少一个与所述第一背光模组101的类型不同，在此不再进行赘述。
如图4是本申请实施例提供的面板主体的结构示意图，所述面板主体300包括阵列基板302、彩膜基板303、偏光片304及位于所述阵列基板302与所述彩膜基板303之间的框胶305和液晶306。可选地，所述液晶306包括正性液晶、负性液晶。进一步地，所述面板主体300还包括公共电极、像素电极、触控电极、配向层、彩膜层等未示出部分。
本申请的实施例还提供一种车辆，所述车辆包括任一上述的车载显示面板，通过所述第一背光模组、所述第二背光模组配合所述面板主体实现显示。在所述第一背光模组或所述第二背光模组中的一者出现故障时，利用所述第一背光模组或所述第二背光模组中的另一者配合所述面板主体保证所述车载显示面板仍具有一定的显示功能，可有利于提高所述背光模组的容错性，提高所述车载显示面板的可靠性和稳定性，有利于保证行车安全。
可选地，所述车载显示面板可用作中控显示、仪表显示、后视镜显示、抬头显示等。
本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种背光模组，其中，包括：
    第一背光模组，所述第一背光模组设有开口；
    第二背光模组，所述第二背光模组安装于所述开口内；
    其中，所述第一背光模组与所述第二背光模组的类型不同。
  2. 根据权利要求1所述的背光模组，其中，所述第一背光模组为直下式背光模组或侧入式背光模组的其中一者，所述第二背光模组为直下式背光模组或侧入式背光模组的其中另一者。
  3. 根据权利要求2所述的背光模组，其中，所述直下式背光模组为分区控制的背光模组。
  4. 根据权利要求2所述的背光模组，其中，所述第一背光模组包括第一背板，所述第二背光模组包括第二背板；其中，所述开口设置于所述第一背板上，所述第二背板可拆卸地安装于所述开口内。
  5. 根据权利要求4所述的背光模组，其中，所述第一背板包括第一主体部、第二主体部和延伸板，所述第二主体部位于所述第一主体部和所述延伸板之间，所述第一主体部和所述延伸板分别与所述延伸板垂直相接；所述第一主体部、所述第二主体部及所述延伸板环绕所述开口，所述第二背光模组还包括第二胶框，所述第二胶框固定于所述第二背板外侧并可拆卸地安装于所述开口内。
  6. 根据权利要求5所述的背光模组，其中，所述第一背光模组包括第一胶框，所述第一胶框包括第一连接部和第一支撑部，所述第一连接部固定于所述第一主体部的外侧，所述第一支撑部自所述第一连接部的远离所述第二主体部的一端朝向所述第一背板的中心延伸而出；所述第二胶框包括第二连接部和第二支撑部，所述第二连接部固定于所述第二背板外侧并可拆卸地安装于所述开口内，所述第二支撑部自所述第二连接部的远离所述第二主体部的一端朝向所述第二背板的中心延伸而出。
  7. 根据权利要求6所述的背光模组，其中，所述第一支撑部远离所述第一背板的一侧表面和所述第二支撑部远离所述第二背板的一侧表面位于同一水平面。
  8. 根据权利要求4所述的背光模组，其中，所述第一背光模组还包括位于所述第一背板上的第一光源，以及位于所述第一光源上的扩散板；所述第二背光模组还包括位于所述第二背板上的一侧的第二光源，以及位于所述第二背板上的导光板，所述导光板的侧部正对所述第二光源。
  9. 根据权利要求8所述的背光模组，其中，所述第一光源包括次毫米发光二极管或微型发光二极管。
  10. 根据权利要求4所述的背光模组，其中，所述第一背板的导热系数大于所述第二背板的导热系数。
  11. 根据权利要求10所述的背光模组，其中，所述第一背板为铸铝件，所述第二背板为钣金件。
  12. 根据权利要求5所述的背光模组，其中，所述延伸板靠近所述开口的一侧设置有第一卡接部，所述第二背板的外侧设置有与所述第一卡接部配合的第二卡接部，所述第二背板通过所述第一卡接部和所述第二卡接部可拆卸地安装于所述开口内。
  13. 一种车载显示面板，其中，包括如权利要求1所述的背光模组及面板主体；所述面板主体包括第一显示部和第二显示部，所述第一显示部位于所述第一背光模组的上方，所述第二显示部位于所述第二背光模组的上方。
  14. 根据权利要求13所述的车载显示面板，其中，
    所述第一背光模组包括第一背板和第一胶框；所述第一背板包括第一主体部、第二主体部和延伸板，所述第二主体部位于所述第一主体部和所述延伸板之间，所述第一主体部和所述延伸板分别与所述延伸板垂直相接；所述第一胶框包括第一连接部和第一支撑部，所述第一连接部固定于所述第一主体部的外侧，所述第一支撑部自所述第一连接部的远离所述第二主体部的一端朝向所述第一背板的中心延伸而出；
    所述第二背光模组包括第二背板和第二胶框，所述第二胶框包括第二连接部和第二支撑部，所述第二连接部固定于所述第二背板外侧，所述第二支撑部自所述第二连接部的远离所述第二主体部的一端朝向所述第二背板的中心延伸而出；其中，所述面板主体安装于所述第一支撑部和所述第二支撑部上。
  15. 根据权利要求14所述的车载显示面板，其中，还包括泡棉胶，所述泡棉胶位于所述面板主体与所述第一支撑部之间，以及，位于所述面板主体与所述第二支撑部之间。
  16. 一种车辆，其中，包括车载显示面板，所述车载显示面板包括如权利要求1所述的背光模组及安装于所述背光模组上的面板主体。
  17. 根据权利要求16所述的车辆，其中，所述第一背光模组为直下式背光模组或侧入式背光模组的其中一者，所述第二背光模组为直下式背光模组或侧入式背光模组的其中另一者。
  18. 根据权利要求16所述的车辆，其中，所述第一背光模组包括第一背板，所述第二背光模组包括第二背板；其中，所述开口设置于所述第一背板上，所述第二背板可拆卸地安装于所述开口内。
  19. 根据权利要求18所述的车辆，其中，所述第一背板包括第一主体部、第二主体部和延伸板，所述第二主体部位于所述第一主体部和所述延伸板之间，所述第一主体部和所述延伸板分别与所述延伸板垂直相接，所述第一背光模组还包括第一胶框，所述第一胶框包括第一连接部和第一支撑部，所述第一连接部固定于所述第一主体部的外侧，所述第一支撑部自所述第一连接部的远离所述第二主体部的一端朝向所述第一背板的中心延伸而出；
    所述第二背光模组还包括第二胶框，所述第二胶框包括第二连接部和第二支撑部，所述第二连接部固定于所述第二背板外侧，所述第二支撑部自所述第二连接部的远离所述第二主体部的一端朝向所述第二背板的中心延伸而出；其中，所述面板主体安装于所述第一支撑部和所述第二支撑部上。
  20. 根据权利要求18所述的车辆，其中，所述第一背板的导热系数大于所述第二背板的导热系数。
PCT/CN2021/091519 2021-04-20 2021-04-30 背光模组、车载显示面板及车辆 Ceased WO2022222183A1 (zh)

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