WO2004101307A1 - An indicator displaying the means of transportation and preparation method thereof - Google Patents

An indicator displaying the means of transportation and preparation method thereof Download PDF

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Publication number
WO2004101307A1
WO2004101307A1 PCT/KR2003/001284 KR0301284W WO2004101307A1 WO 2004101307 A1 WO2004101307 A1 WO 2004101307A1 KR 0301284 W KR0301284 W KR 0301284W WO 2004101307 A1 WO2004101307 A1 WO 2004101307A1
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WO
WIPO (PCT)
Prior art keywords
layer
frame
signs
light
lighting apparatuses
Prior art date
Application number
PCT/KR2003/001284
Other languages
French (fr)
Inventor
Jong-Soon Bae
Original Assignee
Ekolite Co., Inc
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 Ekolite Co., Inc filed Critical Ekolite Co., Inc
Priority to AU2003246285A priority Critical patent/AU2003246285A1/en
Publication of WO2004101307A1 publication Critical patent/WO2004101307A1/en

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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
    • 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
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters

Definitions

  • the present invention relates to a display device for a vehicle and a preparation method thereof, and more particularly to a display device for a vehicle which enables a driver or a pilot to operate a vehicle carefully by efficiently displaying various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, light state and error) mounted on various kinds of a vehicle including cars, trains, ships, airplanes, helicopters and motorcycles, and a preparation method thereof.
  • buttons power, play, rewind, eject, etc.
  • signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner,
  • display device is installed in various kinds of a vehicle for providing driving status information to a pilot or a driver for careful operation of the vehicle.
  • a lamp is installed inside of the traditional display device on which a variety of buttons and signs such as characters for notifying operation states are formed.
  • the display device has a structure to emit light by power from a battery. Therefore, the driver can confirm figures, characters and marks on the front surface of the display device even at night .
  • the traditional display device is made of a general print which provides dim outlook of the display device, so that the driver cannot recognize gauges easily and rapidly.
  • Korean Utility Model Reg. 0254550 Korean Laid-Open Patent Application 0311249, and Korean Utility Model Reg. 0184553.
  • a sheet or web type direct current driving electro luminescence (EL) device is installed in a dashboard indicator or control panel positioned in front of a driver or pilot's seat of a car or an airplane. Brightness of the dashboard or control panel is enhanced due to fluorescent light generated by the EL device, so that a driver or pilot can recognize gauges even at night easily and rapidly .
  • EL electro luminescence
  • Korean Laid-Open Patent Application 0311249 has disclosed an indirect lighting apparatus of a dashboard, comprising light emitting diodes for emitting light on the dashboard, a reflection unit for reflecting light emitted from the light emitting diodes to the dashboard, a filter unit for uniformly scattering reflected light to the dashboard, and a graphic plate unit for supplying light from the filter unit.
  • Korean Utility Model Reg. 0184553 has suggested a transparent light emitting dashboard composed of a light emitting indicator whose internal material is transparent and having a printed surface on both sides of the indicator for preventing transmission of light, a lid adhered to one side top portion of the light emitting indicator for covering the light emitting indicator, and information notifying mechanical states as indicated by the light emitting indicator on its top printed surface, and a thin film printed surface for transmitting light except for the printed surfaces.
  • the indicators have a shortcoming since they merely provide flat signs which results in decreasing the effect of recognition and discrimination of gauges.
  • An object of the present invention is to provide a display device for a vehicle which can display in three dimensions various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, light state and error) mounted on various kinds of a vehicle including cars, trains, ships, airplanes, helicopters and motorcycles, and a preparation method thereof.
  • buttons power, play, rewind, eject, etc.
  • signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, light
  • the present invention provides a display device for a vehicle: comprising lighting apparatuses for generating light; and a display panel installed at the front side of the lighting apparatuses, wherein light irradiated by the lighting apparatuses is emitted through the gap between first and second frames of the display panel, and an information display layer of the first frame and a neon layer of the second frame having the same color to generate the halo effect and neon effect, whereby signs of the display device are displayed in three dimensions.
  • the present invention also provides a preparation method thereof.
  • Fig. 1 is a perspective diagram illustrating disassembly of a dashboard as an example of a display device for a vehicle according to the embodiment of the present invention
  • Fig. 2 is a status diagram illustrating a printing principle of a display panel according to the present invention
  • Fig. 3 is a side-sectional diagram illustrating constitutional elements of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention
  • Fig. 4 is an exemplary diagram illustrating the display device for a vehicle according to the embodiment of the present invention.
  • Fig. 5 is a flowchart showing sequential steps of a preparation method of the display device for a vehicle according to the present invention.
  • Fig. 6a is a flowchart showing sequential steps of a preparation method of a first frame of the display device for a vehicle according to the present invention.
  • Fig. 6b is a flowchart showing sequential steps of a preparation method of a second frame of the display device for a vehicle according to the present invention.
  • the display device for a vehicle is composed of lighting apparatuses for generating light, and a display panel installed at the front side of the lighting apparatuses.
  • the kinds of a vehicle according to the present invention imply general transportation units of goods and human beings, such as cars, trains, ships, airplanes, helicopters and motorcycles.
  • the display device is mounted on various kinds of cars, trains, ships, airplanes, and motorcycles.
  • the display device implies a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (traveling speed, engine RPM, fuel state, light state and error) where various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states are formed.
  • the lighting apparatuses according to the present invention are positioned on the front surface of an inside background sheet of the display device.
  • a multiple number of lighting apparatuses can be installed according to the number of the buttons.
  • the lighting apparatuses are installed as many as the number of the buttons.
  • the display panel is composed of a transparent plate, a first frame adhered to or printed on the front surface of the transparent plate, and a second light transmittable frame adhered to or printed on the rear surface of the transparent plate.
  • the first frame is comprised of an information display layer on which various signs of the vehicle are printed, and a reflection layer formed as the same shape as the information display layer, for reflecting light to obtain the halo effect by a light source.
  • the second frame is composed of a background color layer which is a background of the information display layer and has the same shape of the information display layer except for the signs of the information display layer; a white layer formed to clearly display a background color of the background color layer; a shade layer for intercepting light from the lighting apparatuses in the above area in which the signs are not formed; a reflection layer for increasing brightness of light by reflecting light from the lighting apparatuses; a neon layer for adding a color for the neon effect; and a diffusion layer for diffusing light.
  • a background color layer which is a background of the information display layer and has the same shape of the information display layer except for the signs of the information display layer
  • a white layer formed to clearly display a background color of the background color layer
  • a shade layer for intercepting light from the lighting apparatuses in the above area in which the signs are not formed
  • a reflection layer for increasing brightness of light by reflecting light from the lighting apparatuses
  • a neon layer for adding a color for the neon effect
  • a diffusion layer for diffusing
  • the neon effect of the present invention implies a diffusing effect generated by using the color of the information display layer and the color for the halo effect as same color group.
  • Fig. 1 is a perspective diagram illustrating disassembly of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention
  • Fig. 2 is a status diagram illustrating a printing principle of a display panel according to the present invention
  • Fig. 3 is a side-sectional diagram illustrating constitutional elements of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention.
  • the display device for a vehicle is positioned in a certain area of the dashboard.
  • the display device is composed of lighting apparatuses 10 which are installed with a predetermined interval from an information display layer 32 and projected to the information display layer 32, and a display panel 20 which is installed where the lighting apparatuses 10 irradiate the light (that is front side).
  • the display panel 20 is comprised of a transparent plate 22 formed with a certain thickness, for transmitting light of the lighting apparatuses 10; a first frame 30 being aligned on the front surface of the transparent plate 22 and having signs 60; and a second frame 40 installed separately from the first frame 30 with a certain distance by the transparent plate 22, for transmitting light of the lighting apparatuses 10 to the first frame 30.
  • the first frame 30 is comprised of an information display layer 32 on which the signs 60 formed on the dashboard of the display device for a vehicle and various buttons for setting a mode of the multimedia product, such as numbers, characters, figures and marks are printed; and a reflection layer 34 formed on the rear surface of the information display layer 32, for reflecting transmitted light from the second frame 40 back to the second frame 40 through the transparent plate 22.
  • the reflection layer 34 is adhered or printed as the same shape as the information display layer 32.
  • the second frame 40 is comprised of a background color layer 41 which is a background of the signs 60; a white layer 42 formed to clearly display a background color of the background color layer 41 ; a shade layer 43 for intercepting light from the lighting apparatuses 10 in an area on which the signs 60 are not formed, a reflection layer 44 for increasing brightness of light by reflecting light from the lighting apparatuses 10; a neon layer 45 for adding a color for the neon effect; and a diffusion layer 46 formed on the front surface of the lighting apparatuses 10 as the same size as the display panel 22 for diffusing light from the lighting apparatuses 10.
  • the background color layer 41, the white layer 42, the shade layer 43 and the reflection layer 44 are shaped as the first frame 30 without the printed signs 60 and are formed slightly larger than the signs 60 of the first frame 30 which leads to form a little gap .
  • the neon layer 45 is formed between the diffusion layer 46 and the reflection layer 44 as the same shape as the signs 60 for the neon effect.
  • the neon layer 45 is formed large enough to cover the gap between the first frame 30 and the second frame 40.
  • the reflection layer 44 of the second frame 40 reflects light irradiated from the lighting apparatuses 10. The reflected light is reflected back by a background sheet 50 behind the lighting apparatuses 10, and transmitted through the second frame 40.
  • the information display layer 32 and the reflection layer 34 of the first frame 30, and the background color layer 41, the white layer 42, the shade layer 43, the reflection layer 44, the neon layer 45 and the diffusion layer 46 of the second frame 40 are formed by using silk printing ink and/or cutting sheet.
  • Poly vinyl chloride can be used as a material of the cutting sheet.
  • a plastic adhesive can be employed as an adhesive for adhering the cutting sheet.
  • Fig. 5 is a flowchart showing sequential steps of a preparation method of the display device for a vehicle according to the embodiment of the present invention
  • Fig. 6a is a flowchart showing sequential steps of a preparation method of the first frame of the display device for a vehicle
  • Fig. 6b is a flowchart showing sequential steps of a preparation method of the second frame of the display device for a vehicle.
  • the reflection layer 34 which is reflecting the generated light from the lighting apparatuses 10 to the background color layer 41 of the second frame 40 is printed on the front surface of the transparent plate 22 (SI 10), and the information display layer 32 on which the signs 60 visible to the driver's eyes are printed is printed transparently or opaquely on the front surface of the reflection layer 34 (S120).
  • the background color layer 41 is printed on the rear surface of the transparent plate 22 as the same shape as the signs 60 of the information display layer 32 printed on the first frame 30 and slightly larger than the signs 60 (S210) of the first frame.
  • the white layer 42 is printed on the rear surface of the background color layer 41 (S220).
  • the shade layer 43 for intercepting light from the lighting apparatuses. 10 in an area on which the signs 60 are not formed is printed (S230)
  • the reflection layer 44 for increasing brightness of light by reflecting light is printed on the rear surface of the shade layer 43 (S240)
  • the neon layer 45 which adds a color to the gap for the neon effect
  • the diffusion layer 46 for diffusing light is printed on the rear surface of the neon layer 45 (S260).
  • the printing methods of the layers of the first frame 30 and the second frame 40 are general screen printing methods.
  • a size of the gap between the first frame 30 and the second frame 40 is varied according to the thickness of the transparent plate 22 and the design of the signs 60. Preferably, the size of the gap is about 1/3 of the thickness of the transparent plate 22.
  • the first frame 30 and the second frame 40 are adhered to or printed on the transparent plate 22, preferably in a plane sheet structure.
  • a size of the second frame 40 adhered to or printed on the rear surface of the transparent plate 22 is equal to or larger than a size of the • first frame 30.
  • the operation of the display device for a vehicle will now be explained.
  • the lighting apparatuses 10 When the lighting apparatuses 10 are operated by power from the vehicle and the lighting apparatuses 10 irradiate light, light is diffused by the diffusion layer 46 of the second frame 40. Part of light is reflected by the reflection layer 44 and the rest of light is transmitted through the second frame 40. Light reflected by the reflection layer 44 is reflected back by the background sheet 50 behind the lighting apparatuses 10, transmitted through the second frame 40, refracted through the transparent plate 22, and part of the refracted light diffuse through the gap between the first frame 30 and the second frame 40 and rest of light is reflected to the background color layer 41 of the second frame 40 through the reflection layer 34 of the first frame 30. This results in obtaining the halo effect. Accordingly, the signs 60 of the first frame 30 are displayed as if they had a thickness in the information.
  • the color halo effect can be obtained.
  • the halo effect can be varied according to the size of the gap.
  • the information display layer 32 of the first frame 30 and the neon layer 45 of the second frame 40 have the same color, the neon effect is obtained.
  • the lighting apparatuses irradiate light, and the light is emitted through the gap between the first frame and the second frame.
  • the information display layer of the first frame and the neon layer of the second frame have the same color to obtain the halo effect and neon effect, so that the flat signs can be displayed in three dimensions.
  • the display device for a vehicle is clearly distinguished from the general flat display device. As a result, it enhances the driver's ability to recognize various signs of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The present invention relates to a display device for a vehicle which enables a driver or a pilot to operate a vehicle carefully by efficiently displaying various buttons (power, play, rewind, eject, etc. and signs, such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, lamp state and error) mounted on various kinds of a vehicle including cars, trains, ships, airplanes, helicopters and motorcycles, and a preparation method thereof. Display device for a vehicle includes lighting apparatuses for generating light, and a display panel installed at the front side of the lighting apparatuses, wherein light irradiated by the lighting apparatuses is emitted through gap between first and second frame of the display panel, and an information display layer of the first frame and a neon layer of the second frame have the same color to generate the halo effect and neon effect, whereby signs of the display device are displayed in three dimensions.

Description

AN INDICATOR DISPLAYING THE MEANS OF TRANSPORTATION AND PREPARATION METHOD THEREOF
TECHNICAL FIELD The present invention relates to a display device for a vehicle and a preparation method thereof, and more particularly to a display device for a vehicle which enables a driver or a pilot to operate a vehicle carefully by efficiently displaying various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, light state and error) mounted on various kinds of a vehicle including cars, trains, ships, airplanes, helicopters and motorcycles, and a preparation method thereof.
BACKGROUND ART
Generally, display device is installed in various kinds of a vehicle for providing driving status information to a pilot or a driver for careful operation of the vehicle.
A lamp is installed inside of the traditional display device on which a variety of buttons and signs such as characters for notifying operation states are formed. The display device has a structure to emit light by power from a battery. Therefore, the driver can confirm figures, characters and marks on the front surface of the display device even at night .
However, the traditional display device is made of a general print which provides dim outlook of the display device, so that the driver cannot recognize gauges easily and rapidly.
There have been suggested a few methods to solve the foregoing problems, such as Korean Utility Model Reg. 0254550, Korean Laid-Open Patent Application 0311249, and Korean Utility Model Reg. 0184553. Referring to Korean Utility Model Reg. 0254550, a sheet or web type direct current driving electro luminescence (EL) device is installed in a dashboard indicator or control panel positioned in front of a driver or pilot's seat of a car or an airplane. Brightness of the dashboard or control panel is enhanced due to fluorescent light generated by the EL device, so that a driver or pilot can recognize gauges even at night easily and rapidly .
Korean Laid-Open Patent Application 0311249 has disclosed an indirect lighting apparatus of a dashboard, comprising light emitting diodes for emitting light on the dashboard, a reflection unit for reflecting light emitted from the light emitting diodes to the dashboard, a filter unit for uniformly scattering reflected light to the dashboard, and a graphic plate unit for supplying light from the filter unit.
Korean Utility Model Reg. 0184553 has suggested a transparent light emitting dashboard composed of a light emitting indicator whose internal material is transparent and having a printed surface on both sides of the indicator for preventing transmission of light, a lid adhered to one side top portion of the light emitting indicator for covering the light emitting indicator, and information notifying mechanical states as indicated by the light emitting indicator on its top printed surface, and a thin film printed surface for transmitting light except for the printed surfaces. \ However, the indicators have a shortcoming since they merely provide flat signs which results in decreasing the effect of recognition and discrimination of gauges. DISCLOSURE OF THE INVENTION
An object of the present invention is to provide a display device for a vehicle which can display in three dimensions various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states in a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (driving status information showing speed, engine RPM, fuel state, light state and error) mounted on various kinds of a vehicle including cars, trains, ships, airplanes, helicopters and motorcycles, and a preparation method thereof.
The present invention provides a display device for a vehicle: comprising lighting apparatuses for generating light; and a display panel installed at the front side of the lighting apparatuses, wherein light irradiated by the lighting apparatuses is emitted through the gap between first and second frames of the display panel, and an information display layer of the first frame and a neon layer of the second frame having the same color to generate the halo effect and neon effect, whereby signs of the display device are displayed in three dimensions. The present invention also provides a preparation method thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective diagram illustrating disassembly of a dashboard as an example of a display device for a vehicle according to the embodiment of the present invention;
Fig. 2 is a status diagram illustrating a printing principle of a display panel according to the present invention; Fig. 3 is a side-sectional diagram illustrating constitutional elements of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention;
Fig. 4 is an exemplary diagram illustrating the display device for a vehicle according to the embodiment of the present invention;
Fig. 5 is a flowchart showing sequential steps of a preparation method of the display device for a vehicle according to the present invention,"
Fig. 6a is a flowchart showing sequential steps of a preparation method of a first frame of the display device for a vehicle according to the present invention; and
Fig. 6b is a flowchart showing sequential steps of a preparation method of a second frame of the display device for a vehicle according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
The display device for a vehicle is composed of lighting apparatuses for generating light, and a display panel installed at the front side of the lighting apparatuses.
The kinds of a vehicle according to the present invention imply general transportation units of goods and human beings, such as cars, trains, ships, airplanes, helicopters and motorcycles.
The display device according to the present invention is mounted on various kinds of cars, trains, ships, airplanes, and motorcycles. The display device implies a multimedia product (audio, AV, navigation, CD player, DVD player, liquid crystal TV, etc.), an automatic gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard (traveling speed, engine RPM, fuel state, light state and error) where various buttons (power, play, rewind, eject, etc.) and signs such as characters for notifying operation states are formed.
The lighting apparatuses according to the present invention are positioned on the front surface of an inside background sheet of the display device.
Herein a multiple number of lighting apparatuses can be installed according to the number of the buttons. Preferably, the lighting apparatuses are installed as many as the number of the buttons.
The display panel is composed of a transparent plate, a first frame adhered to or printed on the front surface of the transparent plate, and a second light transmittable frame adhered to or printed on the rear surface of the transparent plate.
The first frame is comprised of an information display layer on which various signs of the vehicle are printed, and a reflection layer formed as the same shape as the information display layer, for reflecting light to obtain the halo effect by a light source.
The above halo effect implies a moon's halo and the likes.
The second frame is composed of a background color layer which is a background of the information display layer and has the same shape of the information display layer except for the signs of the information display layer; a white layer formed to clearly display a background color of the background color layer; a shade layer for intercepting light from the lighting apparatuses in the above area in which the signs are not formed; a reflection layer for increasing brightness of light by reflecting light from the lighting apparatuses; a neon layer for adding a color for the neon effect; and a diffusion layer for diffusing light.
Herein the neon effect of the present invention implies a diffusing effect generated by using the color of the information display layer and the color for the halo effect as same color group.
Hereinafter a desirable aspect of a dashboard as a display device for a vehicle according to the embodiment of the present invention will be described with reference to the attached drawings.
Fig. 1 is a perspective diagram illustrating disassembly of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention, Fig. 2 is a status diagram illustrating a printing principle of a display panel according to the present invention, and Fig. 3 is a side-sectional diagram illustrating constitutional elements of the dashboard as an example of the display device for a vehicle according to the embodiment of the present invention.
Referring to Fig. 1, the display device for a vehicle is positioned in a certain area of the dashboard. The display device is composed of lighting apparatuses 10 which are installed with a predetermined interval from an information display layer 32 and projected to the information display layer 32, and a display panel 20 which is installed where the lighting apparatuses 10 irradiate the light (that is front side). The display panel 20 is comprised of a transparent plate 22 formed with a certain thickness, for transmitting light of the lighting apparatuses 10; a first frame 30 being aligned on the front surface of the transparent plate 22 and having signs 60; and a second frame 40 installed separately from the first frame 30 with a certain distance by the transparent plate 22, for transmitting light of the lighting apparatuses 10 to the first frame 30.
Exemplary materials of the transparent plate 22 include acryl, glass and poly carbon. The first frame 30 is comprised of an information display layer 32 on which the signs 60 formed on the dashboard of the display device for a vehicle and various buttons for setting a mode of the multimedia product, such as numbers, characters, figures and marks are printed; and a reflection layer 34 formed on the rear surface of the information display layer 32, for reflecting transmitted light from the second frame 40 back to the second frame 40 through the transparent plate 22.
The reflection layer 34 is adhered or printed as the same shape as the information display layer 32. The second frame 40 is comprised of a background color layer 41 which is a background of the signs 60; a white layer 42 formed to clearly display a background color of the background color layer 41 ; a shade layer 43 for intercepting light from the lighting apparatuses 10 in an area on which the signs 60 are not formed, a reflection layer 44 for increasing brightness of light by reflecting light from the lighting apparatuses 10; a neon layer 45 for adding a color for the neon effect; and a diffusion layer 46 formed on the front surface of the lighting apparatuses 10 as the same size as the display panel 22 for diffusing light from the lighting apparatuses 10.
The background color layer 41, the white layer 42, the shade layer 43 and the reflection layer 44 are shaped as the first frame 30 without the printed signs 60 and are formed slightly larger than the signs 60 of the first frame 30 which leads to form a little gap .
The neon layer 45 is formed between the diffusion layer 46 and the reflection layer 44 as the same shape as the signs 60 for the neon effect. Herein the neon layer 45 is formed large enough to cover the gap between the first frame 30 and the second frame 40.
The reflection layer 44 of the second frame 40 reflects light irradiated from the lighting apparatuses 10. The reflected light is reflected back by a background sheet 50 behind the lighting apparatuses 10, and transmitted through the second frame 40.
The information display layer 32 and the reflection layer 34 of the first frame 30, and the background color layer 41, the white layer 42, the shade layer 43, the reflection layer 44, the neon layer 45 and the diffusion layer 46 of the second frame 40 are formed by using silk printing ink and/or cutting sheet.
Poly vinyl chloride can be used as a material of the cutting sheet. A plastic adhesive can be employed as an adhesive for adhering the cutting sheet.
A method for printing the first frame 30 and the second frame 40 on the display panel 20 of the display device for a vehicle will now be described with reference to Fig. 2 or 3.
Fig. 5 is a flowchart showing sequential steps of a preparation method of the display device for a vehicle according to the embodiment of the present invention, Fig. 6a is a flowchart showing sequential steps of a preparation method of the first frame of the display device for a vehicle, and Fig. 6b is a flowchart showing sequential steps of a preparation method of the second frame of the display device for a vehicle.
To prepare the first frame 30, the reflection layer 34 which is reflecting the generated light from the lighting apparatuses 10 to the background color layer 41 of the second frame 40 is printed on the front surface of the transparent plate 22 (SI 10), and the information display layer 32 on which the signs 60 visible to the driver's eyes are printed is printed transparently or opaquely on the front surface of the reflection layer 34 (S120).
To prepare the second frame 40, the background color layer 41 is printed on the rear surface of the transparent plate 22 as the same shape as the signs 60 of the information display layer 32 printed on the first frame 30 and slightly larger than the signs 60 (S210) of the first frame. The white layer 42 is printed on the rear surface of the background color layer 41 (S220). Thereafter, the shade layer 43 for intercepting light from the lighting apparatuses. 10 in an area on which the signs 60 are not formed is printed (S230), the reflection layer 44 for increasing brightness of light by reflecting light is printed on the rear surface of the shade layer 43 (S240), the neon layer 45 which adds a color to the gap for the neon effect is printed (S250), and the diffusion layer 46 for diffusing light is printed on the rear surface of the neon layer 45 (S260).
Preferably, the printing methods of the layers of the first frame 30 and the second frame 40 are general screen printing methods.
A size of the gap between the first frame 30 and the second frame 40 is varied according to the thickness of the transparent plate 22 and the design of the signs 60. Preferably, the size of the gap is about 1/3 of the thickness of the transparent plate 22. The first frame 30 and the second frame 40 are adhered to or printed on the transparent plate 22, preferably in a plane sheet structure.
Preferably a size of the second frame 40 adhered to or printed on the rear surface of the transparent plate 22 is equal to or larger than a size of the • first frame 30.
The operation of the display device for a vehicle will now be explained. When the lighting apparatuses 10 are operated by power from the vehicle and the lighting apparatuses 10 irradiate light, light is diffused by the diffusion layer 46 of the second frame 40. Part of light is reflected by the reflection layer 44 and the rest of light is transmitted through the second frame 40. Light reflected by the reflection layer 44 is reflected back by the background sheet 50 behind the lighting apparatuses 10, transmitted through the second frame 40, refracted through the transparent plate 22, and part of the refracted light diffuse through the gap between the first frame 30 and the second frame 40 and rest of light is reflected to the background color layer 41 of the second frame 40 through the reflection layer 34 of the first frame 30. This results in obtaining the halo effect. Accordingly, the signs 60 of the first frame 30 are displayed as if they had a thickness in the information.
When the neon layer 45 between the reflection layer 44 and the diffusion layer 46 of the second frame 40 is colored, the color halo effect can be obtained. The halo effect can be varied according to the size of the gap. When the information display layer 32 of the first frame 30 and the neon layer 45 of the second frame 40 have the same color, the neon effect is obtained.
As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiment is not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims. INDUSTRIAL APPLICABILITY
As described above, in accordance with the present invention, the lighting apparatuses irradiate light, and the light is emitted through the gap between the first frame and the second frame. The information display layer of the first frame and the neon layer of the second frame have the same color to obtain the halo effect and neon effect, so that the flat signs can be displayed in three dimensions. The display device for a vehicle is clearly distinguished from the general flat display device. As a result, it enhances the driver's ability to recognize various signs of the vehicle.

Claims

WHAT IS CLAIMED IS:
1. A display device for a vehicle, comprising: lighting apparatuses for generating light; and a display panel with signs being installed at the front side of the lighting apparatuses, wherein the display panel comprises: a transparent plate formed with a certain thickness for transmitting light*, a first frame being aligned on the front surface of the transparent plate, and including the signs; and a second frame aligned on the rear surface of the transparent plate with a predetermined interval from the first frame for transmitting light from the lighting apparatuses to the first frame.
2. The display device of claim 1, wherein the kinds of a vehicle are general transportation units of goods and human beings, such as cars, trains, ships, airplanes, helicopters and motorcycles.
3. The display device of claim 1, which is one of multimedia products including an audio, an AV, a navigation, a CD player, a DVD player and a liquid crystal TV, an automatic . gearbox, an external indicator light, an air conditioner, a power window, an air conditioning system and a dashboard mounted on the vehicle, wherein various buttons and characters for notifying operation states are formed on the display device.
4. The display device of one of claims 1 to 3, wherein the first frame comprises: an information display layer on which various signs are printed; and a reflection layer formed on the rear surface of the information display layer, for reflecting light transmitted from the second frame back to the second frame through the transparent plate.
5. The display device of claim 4, wherein the reflection layer is adhered or printed as the same shape as the information display layer.
6. The display device of one of claims 1 to 3, wherein the second frame comprises-' a background color layer which is a background of the signs; a white layer formed to clearly display a background color of the background color layer; a shade layer for intercepting light from the lighting apparatuses in an area on which the signs are not formed; a reflection layer for increasing brightness of light by reflecting light from the lighting apparatuses; and a diffusion layer formed on the front surface of the lighting apparatuses as the same size as the display panel, for diffusing light from the lighting apparatuses.
7. The display device of claim 6, wherein the background color layer, the white layer, the shade layer and the reflection layer do not include the signs printed on the first frame, and form gap slightly larger than the signs of the first frame.
8. The display device of claim 6, further comprising a neon layer between the diffusion layer and the reflection layer as the same shape as the signs for the neon effect, which is large enough to cover the gap between the first frame and the second frame.
9. A preparation method of the display device for a vehicle comprising a plurality of lighting apparatuses for generating light, and a display panel being installed at the front side of the lighting apparatuses and including signs, comprising: a first frame formation step for adhering or printing a first frame on which the signs are formed on the front surface of a transparent plate of the display panel formed with a certain thickness for transmitting light of the lighting apparatuses; and a second frame formation step for adhering or printing a second frame for transmitting light from the lighting apparatuses to the first frame on the rear surface of the transparent plate.
10. The method of claim 9, wherein the first frame formation step comprises the steps of: printing a reflection layer at one side of the transparent plate; and printing an information display layer on which the signs are formed on the front surface of the reflection layer.
11. The method of claim 10, wherein the reflection layer is printed as the same shape as the information display layer.
12. The method of claim 9, wherein the second frame formation step W
comprises the steps of: printing a background color layer which is a background of the signs; printing a white layer on the front surface of the background color layer to clearly display a background color of the background color layer; printing a shade layer for intercepting light from the lighting apparatuses in an area in which the signs are not formed on the front surface of the white layer; printing a reflection layer for increasing brightness of light by reflecting light from the lighting apparatuses on the front surface of the shade layer; and printing a diffusion layer for diffusing light from the lighting apparatuses on the front surface of the reflection layer as the same size as the display panel.
13. The method of claim 12, wherein the background color layer, the white layer, the shade layer and the reflection layer do not include the signs printed on the first frame, and form gap slightly larger than the signs of the first frame.
14. The method of claim 12, further comprising a step for printing a neon layer between the diffusion layer and the reflection layer as the same shape as the signs for the neon effect, which is large enough to cover the gap between the first frame and the second frame.
PCT/KR2003/001284 2003-05-15 2003-06-30 An indicator displaying the means of transportation and preparation method thereof WO2004101307A1 (en)

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KR101173051B1 (en) 2010-06-22 2012-08-13 기아자동차주식회사 Hologram sheet for cluster of vehicle and method for manufacturing the same
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