US20020017232A1 - Display device - Google Patents
Display device Download PDFInfo
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- US20020017232A1 US20020017232A1 US09/213,503 US21350398A US2002017232A1 US 20020017232 A1 US20020017232 A1 US 20020017232A1 US 21350398 A US21350398 A US 21350398A US 2002017232 A1 US2002017232 A1 US 2002017232A1
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- United States
- Prior art keywords
- display
- display device
- pointer
- region
- scale marks
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- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000002372 labelling Methods 0.000 claims abstract description 15
- 210000002858 crystal cell Anatomy 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
- B60K35/60—Instruments characterised by their location or relative disposition 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
- B60K35/213—Virtual instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D7/00—Indicating measured values
- G01D7/002—Indicating measured values giving both analog and numerical indication
-
- 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
-
- 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
- B60K2360/698—Pointers of combined instruments
Definitions
- the invention relates to a display device, in particular for a vehicle, having a pointer, which can be actuated by a measuring mechanism, for the analog representation of measured values, fixed scale marks which are assigned to the pointer, and a display, arranged in a region over at least part of which the pointer travels, for representing variable information, it being possible to represent scale labeling on the display.
- Such display devices are known and are used in the form of analog pointer instruments in measuring equipment, for example.
- scale labeling which is located on the scale plate can be generated and changed by electronic actuation.
- the location of the scale labeling is permanently predefined in relation to the scale marks.
- the object of the present invention is to design a display device in such a way that it provides an analog representation of measured values with a flexible representation of information on the scale area, accompanied by low manufacturing costs for the display device.
- a display device of the type mentioned at the beginning by virtue of the fact that the scale marks are arranged outside a display region which can be actuated and that at least part of the display extends along the scale marks and the scale labeling can be represented in this region.
- a display device thus makes it possible, without having to dispense with an extensive representation of information—to keep the display region which can be actuated small.
- a display device can therefore be manufactured in a particularly cost-effective way.
- the scale marks are designed independently of the display, making it possible, for example, to make it easier to perceive for a viewer and/or enabling it to be matched in terms of design to the surrounding instrumentation (for example the dashboard of an motor vehicle).
- the scale labeling can be varied, enabling both the display region of the measuring instrument and the unit which is being displayed to be varied very easily without the instrument having to be adapted mechanically.
- This is significant, for example, in the case of the speedometers of motor vehicles if they are to be marketed throughout the world.
- the displayed unit can then be converted from, for example, kilometers per hour to miles per hour by simply changing the actuation of the display and of the pointer measuring mechanism. It is particularly easy if this change is carried out by actuation software.
- the display is a dot-matrix display. With the display it is possible to display any number of representations which are each composed of a quantity of actuated dots of a dot-matrix.
- the display is particularly inexpensive and can be manufactured in large series if it has a liquid crystal cell.
- Liquid crystal cells provide the additional advantage that owing to their low power consumption they do not heat up during operation and thus do not contribute to an undesired heating of the display instrument.
- the pointer can be pivoted about an axis which is approximately perpendicular to the representational plane of the display.
- Such round instruments are particularly easy to read and require only a small installation area.
- the display device can advantageously be of very compact design if the pointer has, in a region which is turned away from a pointer tip, a pointer hub which is connected to a pointer shaft and if the axes of rotation of the pointer shaft and of an output shaft of the measuring mechanism are arranged so as to be congruent or approximately parallel to one another.
- the pointer shaft and the measuring mechanism output shaft are connected to one another so as to form a single component.
- a gear mechanism which transmits a rotary movement of the measuring mechanism output shaft to the pointer shaft is arranged between the measuring mechanism output shaft and t-he pointer shaft.
- the gear mechanism is a flexible drive mechanism, friction wheel mechanism or gearwheel mechanism, so that the rotary movements are transmitted in a simple and reliable way with only a few movable components.
- the installation space which is available at the rear of a display and/or of a dial of a display device is very limited owing to the large number of electronic and mechanical components to be accommodated so that it is of great advantage if at least part of the gear mechanism is arranged in front of the side of the representational plane of the display which faces a viewer.
- the parts of the gear mechanism which are arranged in front of the representational plane are preferably covered on the viewer side with a panel.
- the pointer can be covered on the viewer side with a panel.
- the display panel clearly visible without superfluous, distracting elements, as a result of which the attention of a viewer is directed completely at the represented information.
- the panel which covers a gear mechanism is identical to the panel with which the pointer is covered.
- the legibility of measured values which are represented with the pointer is particularly good if the scale marks are arranged in the direct vicinity of, or within, a region of the display device over which the tip of the pointer travels.
- the ergonomic and design possibilities which are provided by the display device according to the invention can, however, be particularly well exploited if, according to one advantageous development of the invention, the scale marks are located on a frame element, and the frame element engages at least partially around the display.
- the display is preferably inserted into a recess of the frame element, as a result of which the frame may simultaneously be a holder of the display.
- displays usually have a rectangular shape.
- the frame element In order to be able to give the frame element a shape other than a rectangular shape, for example a round or elliptical shape, it is of particular advantage if the frame element is fitted onto the display.
- edge regions of the display which are possibly not used do not need to be available as a display area which can be actuated—because they are covered—and can therefore be implemented easily and cost-effectively as untreated carrier surface.
- the legibility is particularly good if, according to one advantageous development of the invention, the frame element is a light guide.
- the frame element is a light guide.
- the legibility and the visual impression of the display device is further improved if the scale marks are elevated or countersunk with respect to the representational plane of the display. In this way a plastic structure can be achieved.
- the display is advantageously of simplified design if it has a region which cannot be actuated.
- This region which cannot be actuated is, for example, a region which is covered by a panel.
- the display can be read without illumination. If a liquid crystal cell is used, said cell is therefore preferably transflective or reflective. It is of particular advantage if the display can be illuminated so that even when there is surrounding darkness the information represented on the display can be perceived.
- the display device has a dial, the scale marks being represented on the dial, and at least one region of the display which can be actuated being arranged in a recess of the -dial.
- a design is suitable particularly if the display device is a component of a combination instrument, for example of a motor vehicle.
- FIG. 2 shows the display device according to FIG. 1 in another actuation state
- FIG. 3 shows a further display device according to the invention.
- FIG. 4 shows a section along the line IV-IV of the display device according to FIG. 3.
- a display device (illustrated in FIG. 1) of a motor vehicle has two display units 22 , 23 , each with a pointer 2 , which can be actuated by a measuring mechanism 1 , for the analog representation of measured values.
- Corresponding components are provided, as also in the following figures, with identical reference symbols.
- the display units 22 , 23 are arranged in a dial 8 , which is also provided with symbol fields 28 which can be illuminated.
- one scale mark 3 of the display units 22 , 23 can, as shown here, be printed onto the dial 8 or be a component of an additional frame element.
- the scale marks 3 are fixed and nonvariable.
- one display 4 is arranged in a recess of the dial 8 and in a region which is surrounded by the scale marks 3 in a ring shape.
- a type of scale labeling 5 can be represented on the display 4 .
- the respective scale labeling shows that the, in FIG. 1, left-hand display unit 23 is a rev counter display and the right-hand display unit 22 is a vehicle speed display.
- the scale labeling 5 can be varied so that, for example, the display region varies, the displayed unit changes over or additional marks, such as for example speed limit marks 29 or rev counter warning marks 30 can be actuated.
- the display device for displaying a vehicle speed in km/h or in miles/h, for example, without mechanical changes or without printing the dial of a display device differently.
- further displays such as a fuel tank/remaining distance display 21 , are provided on the display 4 in specific fields.
- the measuring mechanism 1 of the pointer instrument is arranged directly opposite a pointer shaft 7 so that the pointer shaft 7 and a measuring mechanism output shaft 9 can be connected to one another so as to form a single component.
- the display 4 which is an LC dot matrix display in the present exemplary embodiment, is provided with a recess, for example a through-hole, so that the measuring mechanism output shaft 9 engages through it. It is also conceivable to couple the measuring mechanism output shaft 9 and the pointer shaft 7 not by positive locking but rather magnetically so that a recess is not required in the display 4 .
- the pointer 2 is connected to the pointer shaft 7 , and also to the measuring mechanism output shaft 9 , via a pointer hub 13 so that movement of the measuring mechanism output shaft 9 leads to pivoting of the pointer 2 about a pointer pivot axis 12 .
- a boundary 16 of the display 4 is shown by broken lines on the display unit 22 . It is apparent that the display 4 is rectangular and the corner regions 32 of the display 4 which are arranged underneath the scale marks 3 and the dial 8 are not visible to a viewer. These corner regions 32 are not available for a representation of information and therefore do not need to have any elements which can be actuated.
- FIG. 2 shows the display device from FIG. 1 in a different actuation state of the display unit 23 .
- the pointer of the display unit 23 is in a position of rest behind the panel 11 .
- the entire display 4 is available for representing operating information of the motor vehicle.
- a display panel 19 for representing a gear speed display of an automatic transmission is constantly kept free.
- the rest of the display 4 is no longer used—as in FIG. 1—for a rev counter and instead serves to represent a warning display 20 for an overheated catalytic converter in the motor vehicle's exhaust system.
- the warning display 20 may be represented, for example, in a flashing color or in a color which differs from the color of the rev counter in FIG. 1 and gives a powerful signal.
- Additional display fields 17 for a display of the distance from the next vehicle and 18 for the display of the distance traveled are provided in the travel speed display of the display unit 22 .
- FIG. 3 A further exemplary embodiment of a display device is shown in FIG. 3.
- a display 4 of a display unit 24 is inserted into a frame element 14 which has scale marks 3 .
- the display 4 has a display field 19 for a gear speed display of an automatic transmission and represents a traffic guidance display 25 in the rest of the display region.
- a pointer of an analog display instrument is also covered by a panel 11 in a parking position.
- the display unit 24 does not have a pointer instrument but rather merely a display 4 with a frame element 14 .
- Such an embodiment is appropriate, for example, if the intention is to create a uniform appearance of display units with a pointer instrument—as illustrated for example in FIGS. 1 and 2—and without a pointer instrument in a dashboard of a motor vehicle.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Instrument Panels (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Indicating Measured Values (AREA)
Abstract
Description
- The invention relates to a display device, in particular for a vehicle, having a pointer, which can be actuated by a measuring mechanism, for the analog representation of measured values, fixed scale marks which are assigned to the pointer, and a display, arranged in a region over at least part of which the pointer travels, for representing variable information, it being possible to represent scale labeling on the display.
- Such display devices are known and are used in the form of analog pointer instruments in measuring equipment, for example. In the known devices, scale labeling which is located on the scale plate can be generated and changed by electronic actuation. In such cases, the location of the scale labeling is permanently predefined in relation to the scale marks.
- Other known display devices having an analog pointer instrument and a display, over which the pointer travels, for representing variable information have a large scale area which can be actuated, in which context all the display elements including the scale marks can be actuated in a variable fashion and represented on the display. However, the size of the display area which can be actuated is a direct measure of the manufacturing costs of the display, and thus of the display instrument, making these known display instruments very costly. Furthermore, the representation on the display is defined as a planar display, something which restricts the optical configuration possibilities of this display device in terms of both ergonomic and aesthetic criteria.
- In order to remedy this, the object of the present invention is to design a display device in such a way that it provides an analog representation of measured values with a flexible representation of information on the scale area, accompanied by low manufacturing costs for the display device.
- The object is achieved with a display device of the type mentioned at the beginning by virtue of the fact that the scale marks are arranged outside a display region which can be actuated and that at least part of the display extends along the scale marks and the scale labeling can be represented in this region. A display device according to the invention thus makes it possible, without having to dispense with an extensive representation of information—to keep the display region which can be actuated small. A display device according to the invention can therefore be manufactured in a particularly cost-effective way. In addition, in a device according to the invention the scale marks are designed independently of the display, making it possible, for example, to make it easier to perceive for a viewer and/or enabling it to be matched in terms of design to the surrounding instrumentation (for example the dashboard of an motor vehicle).
- According to one advantageous development of the invention, the scale labeling can be varied, enabling both the display region of the measuring instrument and the unit which is being displayed to be varied very easily without the instrument having to be adapted mechanically. This is significant, for example, in the case of the speedometers of motor vehicles if they are to be marketed throughout the world. The displayed unit can then be converted from, for example, kilometers per hour to miles per hour by simply changing the actuation of the display and of the pointer measuring mechanism. It is particularly easy if this change is carried out by actuation software.
- For a flexible representation of information in a way which is dependent only on the respective actuation it is of particular advantage if the display is a dot-matrix display. With the display it is possible to display any number of representations which are each composed of a quantity of actuated dots of a dot-matrix.
- It is advantageous that the display is particularly inexpensive and can be manufactured in large series if it has a liquid crystal cell. Liquid crystal cells provide the additional advantage that owing to their low power consumption they do not heat up during operation and thus do not contribute to an undesired heating of the display instrument.
- According to another advantageous development of the invention, the pointer can be pivoted about an axis which is approximately perpendicular to the representational plane of the display. Such round instruments are particularly easy to read and require only a small installation area.
- The display device can advantageously be of very compact design if the pointer has, in a region which is turned away from a pointer tip, a pointer hub which is connected to a pointer shaft and if the axes of rotation of the pointer shaft and of an output shaft of the measuring mechanism are arranged so as to be congruent or approximately parallel to one another. Preferably, the pointer shaft and the measuring mechanism output shaft are connected to one another so as to form a single component. As a result, owing to a reduction in the number of individual components, the number of mounting processes during the fabrication of the display device is reduced and the inventory holding of the required individual parts is simplified.
- According to another advantageous development of the invention, a gear mechanism which transmits a rotary movement of the measuring mechanism output shaft to the pointer shaft is arranged between the measuring mechanism output shaft and t-he pointer shaft. This makes it possible to separate the measuring mechanism from the pointer spatially and to select a flexible arrangement of the measuring mechanism such that the installation space which is available in the display device is used to an optimum degree. Preferably, the gear mechanism is a flexible drive mechanism, friction wheel mechanism or gearwheel mechanism, so that the rotary movements are transmitted in a simple and reliable way with only a few movable components. The installation space which is available at the rear of a display and/or of a dial of a display device is very limited owing to the large number of electronic and mechanical components to be accommodated so that it is of great advantage if at least part of the gear mechanism is arranged in front of the side of the representational plane of the display which faces a viewer. In order to avoid disrupting the structural impression of the display device and in order to protect the gear mechanism against dirt, the parts of the gear mechanism which are arranged in front of the representational plane are preferably covered on the viewer side with a panel.
- If large areas of information, such as, for example, traffic guidance information, is represented on the display of the display device according to the invention, during which the pointer is not required, it is advantageous if the pointer can be covered on the viewer side with a panel. This makes the display panel clearly visible without superfluous, distracting elements, as a result of which the attention of a viewer is directed completely at the represented information. Preferably, the panel which covers a gear mechanism is identical to the panel with which the pointer is covered.
- The legibility of measured values which are represented with the pointer is particularly good if the scale marks are arranged in the direct vicinity of, or within, a region of the display device over which the tip of the pointer travels. Here, it is particularly easy if the scale marks are located on the display. The ergonomic and design possibilities which are provided by the display device according to the invention can, however, be particularly well exploited if, according to one advantageous development of the invention, the scale marks are located on a frame element, and the frame element engages at least partially around the display. Here, the display is preferably inserted into a recess of the frame element, as a result of which the frame may simultaneously be a holder of the display.
- Especially because of the possibility of-easier fabrication, displays usually have a rectangular shape. In order to be able to give the frame element a shape other than a rectangular shape, for example a round or elliptical shape, it is of particular advantage if the frame element is fitted onto the display. As a result, edge regions of the display which are possibly not used do not need to be available as a display area which can be actuated—because they are covered—and can therefore be implemented easily and cost-effectively as untreated carrier surface.
- It would be conceivable to illuminate the display device according to the invention by means of uplight, in particular in order to make it legible in surrounding darkness. However, the legibility is particularly good if, according to one advantageous development of the invention, the frame element is a light guide. As a result, it is possible both to illuminate directly the scale marks which are provided on the frame element and to illuminate the display by means of light which may have been possibly extracted from the frame element in a selective fashion. The legibility and the visual impression of the display device is further improved if the scale marks are elevated or countersunk with respect to the representational plane of the display. In this way a plastic structure can be achieved.
- In particular when—there is surrounding darkness it is advantageous if the scale marks can be illuminated so that one can be sure of perceiving the represented information reliably even in darkness.
- It would be conceivable to use the entire display region for representing information. However, it is frequently sufficient to use only parts of the display region. In this case, it is advantageous if part of the display is covered by a panel and a uniform structure of the display device is thus possible in this way.
- It is conceivable, depending on the case, to represent only specific information on the display, for example alternative scale labeling or warning information. However, it is of particular advantage if the display can be actuated freely in at least one part, as a result of which information can be represented flexibly on the display and even images, such as for example excerpts from maps of a traffic guidance system or video sequences, can be displayed.
- The display is advantageously of simplified design if it has a region which cannot be actuated. This region which cannot be actuated is, for example, a region which is covered by a panel.
- In order to safeguard an emergency operating function of the display device, for example in the case of a fault in the electronic system of a vehicle, it is advantageous if the display can be read without illumination. If a liquid crystal cell is used, said cell is therefore preferably transflective or reflective. It is of particular advantage if the display can be illuminated so that even when there is surrounding darkness the information represented on the display can be perceived.
- According to another advantageous development of the invention, the display device has a dial, the scale marks being represented on the dial, and at least one region of the display which can be actuated being arranged in a recess of the -dial. Such a design is suitable particularly if the display device is a component of a combination instrument, for example of a motor vehicle.
- The invention is explained in more detail below with reference to exemplary embodiments represented in the appended drawing, in which:
- FIG. 1 shows a display device according to the invention,
- FIG. 2 shows the display device according to FIG. 1 in another actuation state,
- FIG. 3 shows a further display device according to the invention, and
- FIG. 4 shows a section along the line IV-IV of the display device according to FIG. 3.
- A display device (illustrated in FIG. 1) of a motor vehicle has two
display units pointer 2, which can be actuated by ameasuring mechanism 1, for the analog representation of measured values. Corresponding components are provided, as also in the following figures, with identical reference symbols. Thedisplay units dial 8, which is also provided withsymbol fields 28 which can be illuminated. In each case onescale mark 3 of thedisplay units dial 8 or be a component of an additional frame element. The scale marks 3 are fixed and nonvariable. In each case onedisplay 4 is arranged in a recess of thedial 8 and in a region which is surrounded by the scale marks 3 in a ring shape. A type ofscale labeling 5, inter alia, can be represented on thedisplay 4. The respective scale labeling shows that the, in FIG. 1, left-hand display unit 23 is a rev counter display and the right-hand display unit 22 is a vehicle speed display. Thescale labeling 5 can be varied so that, for example, the display region varies, the displayed unit changes over or additional marks, such as for example speed limit marks 29 or rev counter warning marks 30 can be actuated. This also makes it possible to use the display device for displaying a vehicle speed in km/h or in miles/h, for example, without mechanical changes or without printing the dial of a display device differently. Moreover, further displays, such as a fuel tank/remainingdistance display 21, are provided on thedisplay 4 in specific fields. - Both the
scale labeling 5 and a tip 6 of thepointer 2 are directly assigned to marks on thescale 3 so that it is ensured that the analog pointer instruments of thedisplay units - In the
display unit 23, themeasuring mechanism 1 of the pointer instrument is arranged directly opposite apointer shaft 7 so that thepointer shaft 7 and a measuringmechanism output shaft 9 can be connected to one another so as to form a single component. For this purpose, thedisplay 4, which is an LC dot matrix display in the present exemplary embodiment, is provided with a recess, for example a through-hole, so that the measuringmechanism output shaft 9 engages through it. It is also conceivable to couple the measuringmechanism output shaft 9 and thepointer shaft 7 not by positive locking but rather magnetically so that a recess is not required in thedisplay 4. Thepointer 2 is connected to thepointer shaft 7, and also to the measuringmechanism output shaft 9, via apointer hub 13 so that movement of the measuringmechanism output shaft 9 leads to pivoting of thepointer 2 about apointer pivot axis 12. - The analog pointer instrument of the
display unit 22 has ameasuring mechanism 1 which is at a distance from thepointer pivot axis 12. The measuringmechanism output shaft 9 drives thepointer shaft 7 of thepointer 2 via aflexible drive mechanism 10. On the viewer side, thegear mechanism 10 is covered by apanel 11. Thepanel 11 serves at the same time as a cover or guard for thepointer 2 when the latter is in a position of rest. For this reason, thepanel 11 is also provided in thedisplay unit 23. The measuringmechanisms 1 of thedisplay units dial 8 which is turned away from a viewer and in FIG. 1 only the installation position is represented for the sake of clarification. - Furthermore, a
boundary 16 of thedisplay 4 is shown by broken lines on thedisplay unit 22. It is apparent that thedisplay 4 is rectangular and thecorner regions 32 of thedisplay 4 which are arranged underneath the scale marks 3 and thedial 8 are not visible to a viewer. Thesecorner regions 32 are not available for a representation of information and therefore do not need to have any elements which can be actuated. - FIG. 2 shows the display device from FIG. 1 in a different actuation state of the
display unit 23. Here, the pointer of thedisplay unit 23 is in a position of rest behind thepanel 11. Thus, theentire display 4 is available for representing operating information of the motor vehicle. Adisplay panel 19 for representing a gear speed display of an automatic transmission is constantly kept free. In contrast, the rest of thedisplay 4 is no longer used—as in FIG. 1—for a rev counter and instead serves to represent awarning display 20 for an overheated catalytic converter in the motor vehicle's exhaust system. In order to increase the attentiveness of the viewer, thewarning display 20 may be represented, for example, in a flashing color or in a color which differs from the color of the rev counter in FIG. 1 and gives a powerful signal. Additional display fields 17 for a display of the distance from the next vehicle and 18 for the display of the distance traveled are provided in the travel speed display of thedisplay unit 22. - A further exemplary embodiment of a display device is shown in FIG. 3. Here, a
display 4 of adisplay unit 24 is inserted into aframe element 14 which has scale marks 3. Thedisplay 4 has adisplay field 19 for a gear speed display of an automatic transmission and represents atraffic guidance display 25 in the rest of the display region. In thedisplay unit 24, a pointer of an analog display instrument is also covered by apanel 11 in a parking position. However, it is also conceivable that thedisplay unit 24 does not have a pointer instrument but rather merely adisplay 4 with aframe element 14. Such an embodiment is appropriate, for example, if the intention is to create a uniform appearance of display units with a pointer instrument—as illustrated for example in FIGS. 1 and 2—and without a pointer instrument in a dashboard of a motor vehicle. - In order to clarify the three-dimensional structure of the
display unit 24, a section along the line IV-IV from FIG. 3 is shown in FIG. 4. Theframe element 14 is fitted onto thedisplay 4 and clicked or bonded to it. Thedisplay 4, in this case a liquid crystal cell, is provided at its front and at its rear sides with in each case an electro-luminescent film 27 or 26 for illuminating thedisplay 4. Theframe element 14 which bounds the display region to be actuated is designed as a light guide and can be illuminated by a light source (not illustrated) which feeds light into the light guide.Scale divisions 31 of thescale 3 on theframe element 14 can, for example, be printed onto said element or engraved in it. The display region arranged outside theframe element 14 is covered for a viewer by apanel 15 which may, for example, be connected to a dial or a symbol field film of a combination instrument of the motor vehicle so as to form a single component.
Claims (25)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19757564 | 1997-12-23 | ||
DE19757564.1 | 1997-12-23 | ||
DE19757564A DE19757564A1 (en) | 1997-12-23 | 1997-12-23 | Display device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020017232A1 true US20020017232A1 (en) | 2002-02-14 |
US6382127B2 US6382127B2 (en) | 2002-05-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/213,503 Expired - Fee Related US6382127B2 (en) | 1997-12-23 | 1998-12-17 | Display device |
Country Status (5)
Country | Link |
---|---|
US (1) | US6382127B2 (en) |
EP (1) | EP0926468B8 (en) |
JP (1) | JPH11271100A (en) |
DE (2) | DE19757564A1 (en) |
ES (1) | ES2301186T3 (en) |
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- 1998-10-22 DE DE59814163T patent/DE59814163D1/en not_active Expired - Lifetime
- 1998-10-22 ES ES98119964T patent/ES2301186T3/en not_active Expired - Lifetime
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- 1998-12-24 JP JP10367706A patent/JPH11271100A/en active Pending
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US20060216675A1 (en) * | 2003-09-10 | 2006-09-28 | Preh Gmbh | Indicating instrument with a gear indicator |
US7482912B2 (en) | 2003-09-10 | 2009-01-27 | Preh Gmbh | Indicating instrument with a gear indicator |
JP2006030192A (en) * | 2004-07-13 | 2006-02-02 | Yazaki North America Inc | Vehicle gauge with embedded driver information |
US20100267423A1 (en) * | 2007-10-18 | 2010-10-21 | Takahiro Yamakita | Mobile terminal and display method of operational section |
US8369900B2 (en) * | 2007-10-18 | 2013-02-05 | Nec Corporation | Mobile terminal and display method of operational section |
US20150302833A1 (en) * | 2014-04-16 | 2015-10-22 | Mitutoyo Corporation | Display device for measuring instrument, measuring instrument, method of analogically displaying measured value, and program of analogically displaying measured value |
US9812094B2 (en) * | 2014-04-16 | 2017-11-07 | Mitutoyo Corporation | Display device for measuring instrument, measuring instrument, method of analogically displaying measured value, and program of analogically displaying measured value |
Also Published As
Publication number | Publication date |
---|---|
DE19757564A1 (en) | 1999-07-01 |
ES2301186T3 (en) | 2008-06-16 |
EP0926468A3 (en) | 2003-04-09 |
EP0926468B1 (en) | 2008-02-06 |
EP0926468A2 (en) | 1999-06-30 |
EP0926468B8 (en) | 2008-05-07 |
DE59814163D1 (en) | 2008-03-20 |
US6382127B2 (en) | 2002-05-07 |
JPH11271100A (en) | 1999-10-05 |
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