JP4842845B2 - Vehicle lighting device - Google Patents

Description

  The present invention relates to a vehicular illumination device that is attached to a roof trim or the like of an automobile as a vehicle and illuminates a passenger compartment of the automobile.

  Conventionally, a vehicle lighting device is attached to a trim member such as a roof trim or a door trim of an automobile as a vehicle. The vehicular lighting device is attached so as to cover an opening provided in the trim member and forms an appearance of the vehicular lighting device; and the back surface side of the trim member that is assembled to the design portion A device having a functional unit positioned on the vehicle body panel side is known (see, for example, Patent Document 1).

  The functional unit includes a light source unit having a light source such as a bulb and an LED (Light Emitting Diode), a switch unit that switches on and off the light source unit, and a housing that accommodates these.

  The design portion includes a lens that is formed of a transparent synthetic resin and transmits light from the light source unit to the passenger compartment of the automobile, and a locking arm that holds the lens and locks the trim member. And a second housing. The lens is arranged to cover the opening and is assembled to the second housing. Further, the second housing to which the lens is assembled is attached to the trim member by engaging the locking arm with a through hole provided in the trim member.

  In addition, a part of the switch unit, that is, an operation portion such as a lever or a button is passed through an opening window provided in the lens and protrudes toward the passenger compartment.

In the vehicular illumination device having the above-described configuration, power is supplied to the light source unit when the operation unit is operated by a passenger or the like. Then, the light from the light source unit is transmitted through the lens to illuminate the passenger compartment.
JP-A-2005-324607

  On the other hand, in the vehicle lighting device described above, since the lens is formed of a colorless or nearly colorless transparent material, built-in objects such as the functional unit can be seen through the passenger compartment side, and the vehicle lighting device The appearance was bad. In addition, portions exposed to the passenger compartment such as the lens and the operation unit of the switch unit are formed in a color different from that of the trim member. For this reason, there was no sense of unity in the passenger compartment.

  Therefore, an object of the present invention is to provide a vehicular lighting device that can improve the appearance by making it difficult to see a built-in object such as a functional unit through the passenger compartment when the light source is not lit.

  In order to achieve the above-described object, the invention described in claim 1 is attached to an opening provided in a trim member exposed to a passenger compartment side of a vehicle, and a light source unit and on / off of the light source unit. And a design part having a functional part having a switch unit for switching the light source unit, a lens part that transmits light of the light source unit toward the passenger compartment, and a housing that holds the lens part. It is an illuminating device, Comprising: The part exposed to the said passenger compartment side among the said design part and the said switch unit is formed in the same color as the said trim member, The illuminating device for vehicles characterized by the above-mentioned.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the lens portion is configured to have a liquid crystal panel.

The invention described in claim 3 is a functional unit that is attached to the opening provided in the trim member exposed to the passenger compartment side of the vehicle, and has a light source unit and a switch unit that switches the light source unit on and off. And a design part having a lens part that transmits light from the light source unit toward the passenger compartment and a housing that holds the lens part, A portion of the housing and the switch unit exposed to the passenger compartment is formed in the same color as the trim member, and the liquid crystal panel can be formed in the same color as the trim member. This is a vehicle lighting device.

  According to a fourth aspect of the invention, there is provided the transmission pixel according to the second or third aspect, wherein each pixel of the liquid crystal panel is turned on or off to transmit light of the liquid crystal panel. And a non-transparent pixel that does not transmit light, thereby changing the ratio of the brightness in the passenger compartment.

  The invention described in claim 5 is the invention described in any one of claims 2 to 4, wherein each pixel of the liquid crystal panel is turned on or off, and the liquid crystal panel is turned on. It is characterized by having a transmission area control means for changing the illumination range in the passenger compartment by forming a transmission area and a non-transmission area for transmitting light.

  A sixth aspect of the present invention provides the display design according to any one of the second to fifth aspects, wherein the display design of the liquid crystal panel can be changed according to a passenger's selection. It has a control means.

  According to the invention described in claim 1, since the portion exposed to the passenger compartment side of the design portion and the switch unit is formed in the same color as the trim member, the light source unit is more off than the lens portion when the light source unit is off. Since built-in objects such as functional units disposed on the back side are less likely to be seen through the passenger compartment, the appearance of the vehicular lighting device can be improved. Further, the vehicle lighting device can have a sense of unity with the trim member, and the passenger compartment can have a sense of unity.

  According to the second aspect of the present invention, when the light source unit is turned off, the liquid crystal panel is turned on to display the same color as that of the trim member. Since an object cannot be seen through the passenger compartment, the appearance of the vehicular lighting device can be improved. Further, the vehicle lighting device can have a sense of unity with the trim member, and the passenger compartment can have a sense of unity. Further, when the light source unit is turned on, the light inside the passenger compartment can be illuminated by transmitting the light from the light source unit to the passenger compartment side by turning off the liquid crystal panel. Furthermore, since the lens unit is configured to include a liquid crystal panel capable of displaying a desired color, even if the color of the trim member is different for each vehicle, the vehicular illumination device is commonly used. Can do.

According to the invention described in claim 3, since the liquid crystal panel can be made the same color as the trim member, the built-in objects such as the functional units arranged on the back side from the liquid crystal panel cannot be seen through to the passenger compartment side. The appearance of the vehicular lighting device can be improved. Further, a portion of the housing and the switch unit exposed to the passenger compartment is formed in the same color as the trim member, and the liquid crystal panel can be formed in the same color as the trim member. And a sense of unity in the passenger compartment.

  According to the fourth aspect of the present invention, the ratio of the transmissive pixel that transmits the light of the light source unit of the liquid crystal panel and the non-transmissive pixel that does not transmit the light of the light source unit by having the transmission ratio control means. Can be changed. The brightness of the passenger compartment can be adjusted by changing this ratio when the light source unit is turned on. Therefore, it is possible to provide a vehicular illumination device that meets the use / request of the passenger.

  According to the fifth aspect of the present invention, since the transmission region control means is provided, the liquid crystal panel includes a transmission region that transmits light from the light source unit and a non-transmission region that does not transmit light from the light source unit. Can be formed. Then, when the light source unit is turned on, the illumination range in the passenger compartment can be changed by forming the transmission region and the non-transmission region on the liquid crystal panel. As a result, for example, the vehicle illumination device can be used as a spotlight that illuminates only the hand of the passenger. Therefore, it is possible to provide a vehicular illumination device that meets the use / request of the passenger.

  According to the invention described in claim 6, since the display design control means is provided, the display design of the liquid crystal panel can be changed in accordance with the passenger's selection. It is also possible to display the time and display the current direction of the vehicle. Therefore, it is possible to produce an atmosphere that suits the passenger's preference in the passenger compartment, and it is possible to contribute to the improvement of the function of the vehicle.

  Hereinafter, a vehicle lighting device 1A according to a first embodiment of the present invention will be described with reference to FIGS.

  The “vehicle lighting device 1 </ b> A” in the present embodiment is a device that illuminates the passenger compartment of the automobile by being attached to an opening 21 provided in a roof trim 2 or the like as a trim member of the automobile as a vehicle. The roof trim 2 is an interior material that constitutes the ceiling of the automobile, and is disposed so as to be exposed to the passenger compartment side. Moreover, the said passenger compartment side said by this specification means the lower side rather than the roof trim 2 in FIG. Further, a vehicle body panel (not shown) is disposed above the roof trim 2 in FIG. In this specification, the upper side of the roof trim 2 in FIG.

  As shown in FIG. 1, the vehicle lighting device 1 </ b> A includes a function unit 8 disposed on the vehicle body panel side, a function unit 8 disposed on the passenger compartment side with respect to the function unit 8, and a part thereof from the opening 21 to the passenger compartment side. The design portion 9 exposed to the surface and the control device 10 are included.

  The functional unit 8 includes a light source unit 5 having a bulb 50 that serves as a light source of the vehicle lighting device 1A, a switch unit 6, a fluorescent lamp 13 that serves as a light source for a backlight of the liquid crystal panel 3 described later, and the like. The device is housed in the housing 7. In addition to the fluorescent lamp 13, an EL lamp, an LED lamp, or the like can be used as a backlight light source.

  The switch unit 6 is a device that switches on and off the light source unit 5 and switches a display design of the liquid crystal panel 3 to be described later. The switch unit 6 includes a switch main body 6a housed in the housing 7, and a first operation portion 6b and a second operation portion 6c protruding from the switch main body 6a toward the passenger compartment (see FIGS. 2 to 6). And have. The switch body 6a includes a first switch circuit for switching on / off of the light source unit 5 and a second switch circuit for switching a display design of the liquid crystal panel 3 to be described later, and the operation units 6b and 6c are provided. By being pressed, these switch circuits are opened and closed. Further, the first operation portion 6b located on the left side in FIGS. 2 to 6 is incorporated in the first switch circuit. Further, the second operation portion 6c located on the right side in FIGS. 2 to 6 is incorporated in the second switch circuit. Further, these operation portions 6b and 6c are made of a synthetic resin containing a colorant having the same color as that of the roof trim 2. That is, the operation parts 6 b and 6 c are formed in the same color as the roof trim 2.

  The design section 9 includes a liquid crystal panel 3 as a lens section that transmits light (meaning that light is transmitted) from the bulb 50 toward the passenger compartment, and a second housing 4 that holds the liquid crystal panel 3. Have. The second housing 4 is made of a synthetic resin containing a colorant having the same color as that of the roof trim 2. That is, the second housing 4 is formed in the same color as the roof trim 2. The second housing 4 is formed in a frame shape having a mounting window 41 into which the liquid crystal panel 3 is fitted. Further, at one end in the width direction of the second housing 4, a through hole 42 through which the first operation portion 6 b and the second operation portion 6 c described above are passed is provided. A flange 43 extending in the direction from the inner side to the outer side of the opening 21 is provided at the end of the second housing 4 on the vehicle body panel side in the thickness direction. Such a second housing 4 is fitted into the opening 21 by being fitted into the opening 21 from the vehicle body panel side and the flange 43 abutting against the outer edge of the opening 21. That is, in the second housing 4, a portion inside the collar portion 43 is exposed from the opening portion 21 to the passenger compartment side. Further, the functional unit 8 is attached to the second housing 4 with the valve 50 facing the liquid crystal panel 3.

  The liquid crystal panel 3 is fitted into the mounting window 41 of the second housing 4 and is exposed from the opening 21 to the passenger compartment side. The liquid crystal panel 3 is a liquid crystal panel having a known configuration, in which a liquid crystal 31 is sealed between a pair of thin glass substrates 30a and 30b facing each other with a space therebetween. Further, on the inner surfaces of the pair of glass substrates 30a and 30b, an alignment film (not shown) for twisting the liquid crystal molecules of the liquid crystal 31 and a transparent for changing the direction of the liquid crystal molecules by applying a voltage to each pixel. An electrode (not shown) and a color filter (not shown) that enables color display are attached. A polarizing plate (not shown) is attached to the back and front of the pair of glass substrates 30a and 30b.

When the liquid crystal panel 3 is turned on, the liquid crystal panel 3 displays various display designs described later based on the control of the control device 10 described later. Further, the liquid crystal panel 3 displays various display designs by a combination of a pixel that is energized when a voltage is applied to the transparent electrode and a non-energized pixel. The energized pixel does not transmit light, and the non-energized pixel transmits light. Further, the liquid crystal panel 3, the off state (all the pixels the state of the non-energized state) by transmitting the light of the bulb 50 to the passenger compartment side.

  The control device 10 is connected to the switch unit 6, the bulb 50, the fluorescent lamp 13, and the transparent electrode of the liquid crystal panel 3 described above. The control device 10 is a device that performs on / off of the bulb 50 and the fluorescent lamp 13, on / off of the liquid crystal panel 3 and switching of the display design in accordance with an input signal from the switch unit 6. And a generation unit 12.

  The microcomputer 11 includes (a) an interior color display program, (b) a bulb lighting program, (c) a transmission ratio change program, (d) a transmission area change program, (e) a time display program, (f) a pattern display program, ROM 11A that stores programs such as these, CPU 11B that executes and processes these various programs, and RAM 11C that temporarily stores data being processed by CPU 11B.

  The (a) interior color display program is a program that turns on the fluorescent lamp 13 and turns on the liquid crystal panel 3 to display the same color as the roof trim 2 shown in FIG.

  The (b) bulb lighting program is a program for turning off the fluorescent lamp 13 and turning off the liquid crystal panel 3 to turn on the bulb 50, as shown in FIG.

  The transmission ratio changing program (c) turns on the fluorescent lamp 13 when the bulb 50 is turned on and turns on the liquid crystal panel 3 to turn on or off each pixel to turn on the bulb 50 of the liquid crystal panel 3. This is a program for changing the brightness of the passenger compartment by changing the ratio of the transmissive pixels that transmit light of the above and the non-transmissive pixels that do not transmit light of the bulb 50.

  The (d) transmissive region changing program turns on the fluorescent lamp 13 when the bulb 50 is turned on and turns on the liquid crystal panel 3 to turn on or off each pixel. Is a program that changes the illumination range in the passenger compartment by forming transmissive areas B1 and B2 that transmit light from the bulb 50 and a non-transmissive area D that does not transmit light from the bulb 50.

  The (e) time display program is a program for turning off the bulb 50, turning on the fluorescent lamp 13, and turning on the liquid crystal panel 3 so that the current time shown in FIG. .

  The (f) pattern display program turns off the bulb 50, turns on the fluorescent lamp 13, and turns on the liquid crystal panel 3 to display the pattern shown in FIG. 6 (checkered pattern in the illustrated example) on the liquid crystal panel 3. It is a program to let you.

  The voltage generator 12 applies a voltage to the bulb 50, the fluorescent lamp 13, and each transparent electrode of the liquid crystal panel 3 according to the information sent by the execution process performed by the CPU 11B.

  The control device 10 and the switch unit 6 constitute “transmission ratio control means”, “transmission area control means”, and “display design control means” described in the claims.

In the vehicle lighting device 1A having the above-described configuration, for example, when the bulb 50 is turned off, the second operation unit 6c is pressed for 2 seconds or more by a passenger or the like. runs, roof trim 2 and the same color of the liquid crystal panel 3 shown in FIG. 2 still appears. Further, the liquid crystal panel 3 is Ru is turned off by the second operating unit 6c when the roof trim 2 and the same color of the liquid crystal panel 3 shown in FIG. 2 is displayed is pushed more than 2 seconds. When the second operation portion 6c is pressed for 2 seconds or longer while the bulb 50 is lit, the bulb 50 is turned off and the same color as the roof trim 2 shown in FIG. .

  Further, in the vehicular lighting device 1A, when the first operating portion 6b is pressed, the (b) bulb lighting program is executed, and the bulb 50 is turned on as shown in FIG. And when the valve 50 is lit, the valve 50 is turned off by pressing the first operating portion 6b. Further, when the first operation unit 6b is pressed while the liquid crystal panel 3 is displaying various display designs, the valve 50 is turned on and the liquid crystal panel 3 is turned off.

  Further, in the vehicular illumination device 1A, when the bulb 50 is lit, the second operation unit 6c is pressed for a short time (a time shorter than 2 seconds), whereby the transmission ratio changing program (c) is executed, The brightness in the passenger compartment is 50% of the original brightness (referred to as the brightness when the bulb 50 is turned on when the liquid crystal panel 3 is off).

  Further, the vehicle lighting device 1 </ b> A is further changed when the (c) transmission ratio changing program is executed, that is, when the brightness of the passenger compartment is 50% of the original brightness described above. 2 When the operation unit 6c is pressed for a short time (shorter than 2 seconds), the (d) transmission region changing program is executed, and the liquid crystal panel 3 transmits the light from the bulb 50 as shown in FIG. B1 and B2 and a non-transmissive region D that does not transmit the light of the bulb 50 are formed. At this time, each pixel of the liquid crystal panel 3 forming the transmissive regions B1 and B2 is in a non-energized state, and each pixel of the liquid crystal panel 3 forming the non-transmissive region D is in a conductive state. By forming the transmissive areas B1 and B2 and the non-transmissive area D in this way, the vehicle lighting device 1A can be used as a spot lamp.

Further, the vehicle lighting device 1 </ b> A is further configured when the transmission region changing program (d) is executed, that is, when the transmission regions B <b> 1, B <b> 2 and the non-transmission region D are formed on the liquid crystal panel 3. 2 When the operation unit 6c is pressed for a short time (shorter than 2 seconds), the time display program (e) is executed, the valve 50 is turned off, and the current time shown in FIG. The

Further, in the vehicle lighting device 1A, when the (e) time display program is executed, that is, when the current time is displayed on the liquid crystal panel 3, the second operation unit 6c is further shortened (from 2 seconds). the short time) be pressed, (f) the pattern display program is executed, the image of the checkered pattern shown in FIG. 6 in the liquid crystal panel 3 still appears. Further, when the second operation portion 6c is pressed for a short time (shorter than 2 seconds), the above-described (b) bulb lighting program is executed, the liquid crystal panel 3 is turned off, and the bulb 50 is as shown in FIG. Illuminated.

According to the present embodiment, the second housing 4 exposed to the passenger compartment side and the operation portions 6b and 6c are formed in the same color as the roof trim 2, and the roof trim 2 is attached to the liquid crystal panel 3 when the valve 50 is turned off. By displaying the same color, it is possible to prevent the built-in components such as the function unit 8 arranged on the vehicle body panel side from the liquid crystal panel 3 from seeing through the passenger compartment, thereby improving the appearance of the vehicle lighting device 1A. Can be made. Further, by displaying the same color as that of the roof trim 2 on the liquid crystal panel 3, it is possible to give the vehicle lighting device 1A a sense of unity with the roof trim 2 and to give the passenger compartment a sense of unity. it can.

  Furthermore, since the liquid crystal panel 3 can display a desired color, even if the color of the roof trim 2 is different for each vehicle, the vehicle lighting device 1A can be used in common.

  Furthermore, the liquid crystal panel 3 can adjust the brightness in the passenger compartment and change the illumination range in the passenger compartment. Therefore, it is possible to provide a vehicular illumination device that meets the use / request of the passenger.

  Furthermore, the liquid crystal panel 3 can change the display design such as the current time and a desired pattern according to the passenger's selection. Therefore, it is possible to produce an atmosphere that suits the passenger's preference in the passenger compartment, and it is possible to contribute to the improvement of the function of the vehicle.

  Next, a vehicle lighting device 1B according to a second embodiment of the present invention will be described with reference to FIG. In the figure, the same components as those in the vehicle lighting device 1A described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 7, the vehicular lighting device 1B of the present embodiment includes a functional unit 8 ′ disposed on the vehicle body panel side, a passenger compartment side of the functional unit 8 ′, and a part thereof being an opening. 21 and a design portion 9 ′ exposed to the passenger compartment side.

  The functional unit 8 ′ is a device in which a light source unit 5 having a bulb 50 that forms a light source of the vehicle lighting device 1 </ b> B, a switch unit 6 ′, and the like are housed in a synthetic resin housing 7.

  The switch unit 6 ′ is a device that switches the light source unit 5 on and off. The switch unit 6 ′ includes a switch body 6 a ′ accommodated in the housing 7 and a first operation portion 6 b protruding from the switch body 6 a ′ toward the passenger compartment. The switch body 6a 'incorporates a first switch circuit for switching the light source unit 5 on and off, and the switch circuit is opened and closed by pressing the first operation portion 6b. Further, the first operation portion 6 b is made of a synthetic resin containing a colorant having the same color as that of the roof trim 2. That is, the first operation portion 6 b is formed in the same color as the roof trim 2.

  The design portion 9 ′ includes a cover lens 15 as a lens portion that transmits light from the bulb 50 toward the passenger compartment, and a second housing 4 ′ that holds the cover lens 15. The second housing 4 ′ is formed in a plate shape and has a transmission window 45 for transmitting light from the bulb 50 at the center. In addition, a through hole 42 through which the first operation portion 6b described above is passed is provided at one end in the width direction of the second housing 4 '. A flange 43 extending in the direction from the inner side to the outer side of the opening 21 is provided at the end of the second housing 4 ′ on the vehicle body panel side in the thickness direction. A cover lens 15 is attached to the passenger compartment side in the thickness direction of the second housing 4 ′. Such a second housing 4 ′ is fitted into the opening 21 by being fitted into the opening 21 from the vehicle body panel side and the flange 43 abutting against the outer edge of the opening 21. Further, the functional unit 8 ′ is attached to the second housing 4 ′ so that the bulb 50 faces the cover lens 15.

  The cover lens 15 is formed in a flat plate shape, is attached to the second housing 4 ′, and is exposed to the passenger compartment side. The cover lens 15 is made of a synthetic resin containing a colorant having the same color as that of the roof trim 2. That is, the cover lens 15 is formed in the same color as the roof trim 2. Further, the cover lens 15 is provided with a through hole 15a through which the first operation portion 6b described above is passed at a position overlapping the through hole 42 provided in the second housing 4 '. Such a cover lens 15 prevents the second housing 4 ′ and the functional portion 8 ′ disposed on the vehicle body panel side from the cover lens 15 from passing through the passenger compartment side when the bulb 50 is turned off. Further, when the bulb 50 is turned on, the light from the bulb 50 is transmitted to the passenger compartment side.

  That is, in the vehicle lighting device 1B of the present embodiment, the cover lens 15 and the first operation portion 6b of the switch unit 6 'are exposed to the passenger compartment side, and these are formed in the same color as the roof trim 2.

  According to the present embodiment, since the cover lens 15 exposed to the passenger compartment side and the first operation portion 6b of the switch unit 6 ′ are formed in the same color as the roof trim 2, the vehicle panel side of the cover lens 15 is provided. Since the built-in objects such as the second housing 4 ′ and the functional unit 8 ′ arranged in the passenger compartment can be made difficult to see through to the passenger compartment side, the appearance of the vehicular lighting device 1B can be improved. In addition, the vehicle lighting device 1B can have a sense of unity with the roof trim 2, and the passenger compartment can have a sense of unity.

  Moreover, in 2nd Embodiment mentioned above, although the part exposed to the passenger | crew compartment side of the illuminating device 1B for vehicles was comprised with the synthetic resin containing the coloring agent, in this invention, in addition to this, a trim member and A film sheet of the same color may be affixed to the exposed portion, or a paint of the same color as the trim member may be applied. The gist of the present invention is to make the portion of the vehicle lighting device exposed to the passenger compartment side the same color as the trim member, and the means is not limited.

  In the first and second embodiments described above, the vehicle lighting devices 1A and 1B are lighting devices attached to the ceiling of the automobile, that is, the roof trim 2. However, the vehicle lighting device of the present invention is not limited thereto. The lighting device is not limited to a door trim or the like.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a schematic explanatory drawing which shows the illuminating device for vehicles which concerns on the 1st Embodiment of this invention. It is a front view which shows a mode that the color same as a trim member was displayed on the liquid crystal panel of the illuminating device for vehicles shown by FIG. It is a front view which shows a mode that the liquid crystal panel of the vehicle illuminating device shown by FIG. 1 was turned off, and the light of the light source unit was permeate | transmitted to the passenger compartment side. It is a front view which shows a mode that the liquid crystal panel of the vehicle illuminating device shown by FIG. 1 formed the permeation | transmission area | region and the non-transmission area | region at the time of lighting of a light source unit. It is a front view which shows a mode that the liquid crystal panel of the vehicle illuminating device shown by FIG. 1 displayed the present time. It is a front view which shows a mode that the liquid crystal panel of the vehicle illuminating device shown by FIG. 1 displayed the design which has a pattern. It is a schematic explanatory drawing which shows the illuminating device for vehicles which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

1A, 1B Vehicle lighting device 2 Roof trim (trim member)
3 LCD panel (lens part)
4,4 'second housing (housing)
5 Light source unit 6, 6 'switch unit (transmission ratio control means, transmission area control means, display design control means)
8,8 'function part 15 cover lens (lens part)
9, 9 'design part 10 control device (transmission ratio control means, transmission area control means, display design control means)
21 Opening B1, B2 Transmission area D Non-transmission area

Claims (6)

A functional unit that is attached to an opening provided in a trim member exposed to the passenger compartment side of the vehicle and that has a light source unit and a switch unit that switches on and off of the light source unit, and the light from the light source unit to the occupant A vehicular illumination device comprising a design part having a lens part that transmits to a room side and a housing that holds the lens part,
A portion of the design portion and the switch unit exposed to the passenger compartment side is formed in the same color as the trim member.   The vehicle illumination device according to claim 1, wherein the lens unit includes a liquid crystal panel. A functional unit that is attached to an opening provided in a trim member exposed to the passenger compartment side of the vehicle and that has a light source unit and a switch unit that switches on and off of the light source unit, and the light from the light source unit to the occupant A vehicular illumination device comprising a design part having a lens part that transmits to a room side and a housing that holds the lens part,
The lens unit is configured to have a liquid crystal panel,
Of the housing and the switch unit, a portion exposed to the passenger compartment side is formed in the same color as the trim member,
An illumination device for a vehicle, wherein the liquid crystal panel can have the same color as the trim member .   The brightness of the passenger compartment is adjusted by changing the ratio of transmissive pixels that transmit light and non-transmissive pixels that transmit light of the liquid crystal panel, with each pixel of the liquid crystal panel being energized or de-energized. 4. The vehicular lighting device according to claim 2, further comprising a transmission ratio control means that enables the transmission ratio control means.   A transmissive area control for changing the illumination range in the passenger compartment by turning each pixel of the liquid crystal panel into an energized state or a non-energized state and forming a transmissive area and a non-transmissive area for transmitting light to the liquid crystal panel. The vehicle lighting device according to any one of claims 2 to 4, further comprising means.   The vehicle design according to any one of claims 2 to 5, further comprising display design control means for making the display design of the liquid crystal panel changeable according to a passenger's selection. Lighting device.

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