Classifications

• • 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
  • 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
• • 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
  • B60K2360/60—Structural details of dashboards or instruments
  • B60K2360/68—Features of instruments
  • B60K2360/688—Frames or decorative parts
• • 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
  • B60K2360/60—Structural details of dashboards or instruments
  • B60K2360/68—Features of instruments
  • B60K2360/691—Housings
• • 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
• • 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
  • B60K2360/822—Adjustment of instruments during mounting
• • 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
  • B60K2360/92—Manufacturing of instruments
  • B60K2360/96—Manufacturing of instruments by assembling
• • 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
  • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
  • G02F1/133314—Back frames

Definitions

• Display device for the passenger compartment of a motor vehicle
• the present invention relates to a display device for the passenger compartment of a motor vehicle and to a dashboard of a vehicle comprising such a display device.
• Motor vehicles comprise more and more varied functions that the driver and the passenger have to control. To control these functions or provide a display to the driver and the passenger, more and more motor vehicles are equipped with display devices. These display devices may comprise only a flat screen, or a touch control panel associated with this flat screen.
• the display device has constraints related to their use in motor vehicles, among others, the need for high brightness to remain visible and despite direct lighting.
• the display device must, in addition, be securely fixed to the passenger compartment of the vehicle so as not to move under the effect of the vibrations of the motor vehicle, and thus reduce the quality of the display.
• These different constraints make the display devices intended for the passenger compartment of a motor vehicle are generally heavier than the display devices intended for other applications (of the same size) and are fixed by specific fixing means .
• the present invention aims to overcome the drawbacks mentioned above, in particular by providing a display device allowing a controlled and accurate adjustment of the altitude in depth despite manufacturing tolerances and stacking of the various elements.
• the present invention relates to a display device for a motor vehicle comprising at least:
• the display screen comprising at least a first reference point
• a fixing box comprising at least a second reference point
• the display screen being fixed to the fixing box by the fastening means engaged with the back of the display screen.
• the display device further comprises between the back of the display screen and the fixing housing at least one rigid shim, the at least one rigid shim being configured so as to minimize the difference between the distance separating the first and second reference points and a desired dimension.
• the use of at least one rigid block makes it possible to mitigate the game generated by the assembly of the parts of the display device, which allows better ergonomics and / or better display quality.
• the assembly according to the invention may also comprise one or more of the following characteristics, considered individually or in any technically possible combination:
• the display screen is of the liquid crystal type, for example of the TFT type, or else of the LCD, VFD or other OLED technology type; and or
• the display screen further comprises at least three holding studs disposed on the back of the display screen and the at least one rigid wedge is disposed between at least one holding stud and the fixing housing, or any intermediate element of the stacking assembly, constituting the distance between the reference points; and or
• At least one rigid shim is disposed between each holding pad of the display screen and the fixing housing; and or -
• the display device comprises a plurality of rigid shims interconnected by means of a rigid frame; and or
• the at least one rigid shim is in the form of a rigid washer of selected thickness
• the at least one rigid wedge is made of metal and / or rigid plastic; and or
• the fastening means are screws and / or cams and / or glue; and or
• the display screen comprises a defined number of holding pads, typically between 3 and 5 holding studs, for example 4; and or
• the display device further comprises a transparent plate disposed in front of the display screen for example for a touch, protection, anti-scratch, anti-trace, surround framing, and anti-reflective optical effects polarizer.
• the invention also relates to a dashboard of a motor vehicle comprising a device according to the invention.
• FIG. 1 schematically illustrates a display device according to the prior art
• FIG. 2 schematically represents a display device according to a first embodiment
• FIG. 3 schematically represents the different elements of a display device according to a first embodiment
• FIG. 4 is an example of a rigid block according to one embodiment of the invention.
• Figure 5 illustrates the steps to choose the size of the rigid block.
• the display device 10 intended for the passenger compartment of a motor vehicle comprises a display screen 12.
• the display screen 12 comprises on the rear face pads of holding 14 allowing attachment to a housing 16.
• the housing 16 is intended to be recessed in the passenger compartment by means of not shown fastening means.
• the display surface 13 of the display screen 12 is embedded in a console trim frame 30.
• FIG. 1 shows an example of a display device 10 with a decorative glazing 40 resting on the housing 16, including a gap "E" between the display surface 13 of the display screen 12 and the decorative glazing 40. Said gap “e” is non-zero and comes from the games of the different parts of the display device 10.
• the display screen 12 is not on the final surface because of the glazing 40.
• the gap "e" present between the display of FIG. the display screen 12 and the front panel of the screen 13 is intended to be reduced so that the image displayed on the display screen 12 appears sharp and clear, and does not appear too withdrawn, or disturbed or limited by the inner edges.
• FIG. 1 A display device according to a first embodiment of the invention is shown in FIG. 1
• the display device 10 comprises at least:
• the display screen 12 includes four holding studs 14 arranged on the back of the display screen 12.
• the display screen further comprises at least a first reference point Ref 1.
• the display screen 12 is of the liquid crystal type, for example of the TFT, LCD, VFD or other OLED technologies.
• the display screen comprises at least three holding studs 14 arranged on the back of the display screen 12.
• the attachment housing 16 comprises at least a second reference point Ref 2.
• the fastening means allow, when they are engaged with the holding studs 14, to fix the display screen 12 to the fastening box 16.
• the display device further comprises, between the back of the display screen 12 and the attachment housing 16, rigid shims 20.
• Rigid shims 20 of known / chosen thickness are configured to provide a desired dimension between the first and second reference points.
• the rigid shims are configured so as to minimize the difference between the distance separating the first and second reference points and a desired dimension.
• the term “rigid shim” means a wedge which does not deform under the effect of forces when fixing the display screen to the fixing housing.
• the word “rigid” refers to the resistance of the material constituting the wedges with respect to the elastic deformations. Unlike elastic materials, rigid shims do not deform or very little when applying a stress. In particular, the rigid shims according to the invention are not configured to deform under the effect of the fastening means.
• the invention is therefore not limited to a specific material for shims; a range of materials whose Young's modulus is large enough to be characterized as rigid can be used. As a result, materials such as metals, rigid or semi-rigid plastics are conceivable.
• the use of rigid shims chosen makes it possible to precisely control the difference by calculation between the measured reference points and a desired dimension.
• the rigid shims 20 may be in the form of washers. Depending on the configuration, rigid shims of the same thickness may be used at each holding pad, or rigid shims of different thicknesses may be used at different holding pads.
• the housing 16 may not comprise a holding stud, the wedges in the form of washers may be arranged directly between the back of the display screen 12 and the inside of the housing 16. including or not the retaining pads 14.
• rigid shims are arranged at the level of the holding studs 14 between the back of the display screen 12 and the fixing box 16.
• FIG. 2 shows the display device 10 with decorative glazing 40 resting on the casing 16.
• rigid shims 20 makes it possible to control the gap "e" between the display surface 13 of the screen display 12 and the decor glazing 40. This difference comes from the games of the different parts of the display device 10.
• the use of rigid shims makes it possible to make up the games and tolerance deviations of the various parts of the display device 10.
• the wedges are configured so that the gap "e" between the display surface 13 of the display screen 12 and the decor glazing 40 is substantially zero.
• manufacturing clearance can be compensated so that the display surface 13 is as close as possible to the glazing 40, which was not possible when the display screen was simply screwed to the fixing box 16.
• Figure 3 shows a display device according to a second embodiment of the invention.
• the display device shown in Figure 3 comprises rigid shims interconnected by a rigid frame.
• such a configuration makes it possible to minimize the laying operations during assembly of the display device.
• FIG. 1 An example of a rigid wedge 20 formed of a single frame element is shown in FIG.
• rigid shims of different geometry are possible, for example pellets, cylindrical rings type flat metal washers or rigid plastic washers.
• FIG. 5 illustrates an exemplary method for determining the optimum size of a rigid shim 20 in one embodiment.
• the rigid shim 20 is of the same type as the rigid shim 20 shown in FIG. 4.
• the measurements and choice of the rigid shims can be done manually or robotically, assisted by a computer in a chain.
• the gap "e" can be measured during an intermediate mounting step. Measurements can be made in a chain either unitarily or by serial sampling.
• the dimension A represents the measurement of the thickness of the subset of the display screen 12, of the protective screen 40 and the holding studs 14.
• the dimension B represents the measurement of the height of the casing 16.
• the dimension C represents the thickness of the rigid shim 20.
• the purpose of the rigid wedge 20 is to minimize the height represented by B-A.
• This height named H represents the shrinkage that will be corrected by the presence of the rigid shim 20.
• the thickness C of the rigid shim 20 will be chosen to be closest to the height H.
• the rigid shims 20 are chosen for example between several thicknesses, or in combination of shims of the same superimposed thickness, to approach the height H. With the aid of the rigid shims 20, the height H can be reduced to a height between 0 and 0.4 mm, while this withdrawal could sometimes reach 1.5 mm in devices of the prior art.
• rigid shims 20 are washers independent of each other
• rigid shims 20 of different thicknesses can be placed at each holding stud 14 to level the final assembly and / or adjust the parallelism of the whole. This would achieve the desired flushy effect so that the display device is aligned with the facade.
• the mounting of the display device 10 is made so that the fastening means 18 can not be loosened, for example by vibration.
• the invention also relates to a dashboard of a motor vehicle comprising a display device according to the invention.
• the housing 16 may contain other elements not shown as an electronic card, which participate or not in the stack.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Instrument Panels (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51205469

Family Applications (1)

Country Status (3)

Citations (5)

• 2014
  • 2014-05-27 FR FR1401218A patent/FR3021602B1/fr active Active
• 2015
  • 2015-05-26 WO PCT/FR2015/051380 patent/WO2015181486A1/fr active Application Filing
  • 2015-05-26 EP EP15735724.5A patent/EP3148836A1/de not_active Ceased

Patent Citations (5)

Non-Patent Citations (1)

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