WO2018216471A1 - Display device for vehicles, control method for same, program and computer-readable storage medium - Google Patents
Display device for vehicles, control method for same, program and computer-readable storage medium Download PDFInfo
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- WO2018216471A1 WO2018216471A1 PCT/JP2018/017996 JP2018017996W WO2018216471A1 WO 2018216471 A1 WO2018216471 A1 WO 2018216471A1 JP 2018017996 W JP2018017996 W JP 2018017996W WO 2018216471 A1 WO2018216471 A1 WO 2018216471A1
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- vehicle
- display
- display unit
- self
- luminous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/40—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate
Definitions
- the present disclosure relates to a vehicle display device, a control method for a vehicle display device, a program, and a computer-readable storage medium in which the program is stored.
- Patent Document 1 proposes a technique of providing an image display device in a vehicle and displaying various information on the outside of the vehicle.
- a self-luminous display device such as a transmissive liquid crystal display device with backlight or an organic EL (Electro Luminescence) device as a display device, and obtain the necessary brightness during the day and night to ensure the visibility of the screen. Is also possible.
- a self-luminous display device has higher power consumption in proportion to the luminance value, and tends to have a shorter life due to screen burn-in and reduced luminous efficiency. It is not preferable to continue the screen display.
- the present disclosure provides a display device for a vehicle, a control method for the display device for a vehicle, a program, and a computer-readable storage medium that can reduce power consumption while improving visibility.
- a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
- the vehicle display device A self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle;
- a reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle;
- An information acquisition unit configured to acquire environmental information indicating an environment outside the vehicle;
- a control unit configured to switch between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environment information; Is provided.
- a control method for a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
- the control method is Displaying the image using a self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle; and Displaying an image using a reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle; and Obtaining environmental information indicating an environment outside the vehicle; Switching between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environmental information; including.
- FIG. 1 It is a block diagram which shows the structure of the display apparatus for vehicles in 1st Embodiment.
- A shows the self-luminous type display part and reflective type display part which are arrange
- B shows a self-luminous display unit and a reflective display unit arranged in stripes.
- A) shows the schematic cross section of the display part which consists of an organic EL element and a reflection type liquid crystal display device.
- B) shows the schematic cross section of the display part which consists of a reflection type liquid crystal display device and a backlight.
- C) shows the schematic cross section of the display part which consists of a reflection type liquid crystal display device and an external light.
- (B) shows the relationship between the ambient temperature and the luminance of the self-luminous display unit 30. It is a graph which shows control of the self-light-emitting display part in 3rd Embodiment, (a) shows the relationship between surface brightness
- FIG. 6th Embodiment It is a schematic diagram which shows the display part in 6th Embodiment.
- A) shows an example of a structure of a display part.
- B) shows the other example of a structure of a display part.
- A shows the arrangement of the pixel colors in the stop / tail lamp display unit 61.
- B) shows an example of the arrangement of the pixel colors in the turn signal display section 62.
- C shows an example of the arrangement of the pixel colors in the general display unit 63.
- FIG. 1 is a block diagram showing a configuration of a vehicle display device 100 according to the first embodiment.
- the vehicle display device 100 is mounted on a vehicle and is configured to present an image toward the outside of the vehicle.
- the vehicle display device 100 includes a control unit 10, an information acquisition unit 20, a self-luminous display unit 30, and a reflective display unit 40, and is displayed by the self-luminous display unit 30 and the reflective display unit 40.
- Part 50 is configured.
- the control unit 10 includes various arithmetic devices (for example, processors such as CPU and GPU), internal storage devices (for example, memories such as ROM and RAM), external storage devices (for example, hard disk and SSD (Solid State Drive)), Information communication means (for example, wireless or wired communication module) is provided.
- the control unit 10 may be provided inside the vehicle display device 100 or may be provided outside the vehicle display device 100.
- the control unit 10 may be configured as part of an information processing unit that performs driving control of the vehicle.
- the control unit 10 is configured to switch the display of the self-luminous display unit 30 and the reflective display unit 40 based on environmental information indicating the environment outside the vehicle display device 100 acquired by the information acquisition unit 20. ing.
- control unit 10 is configured to determine which of the self-luminous display unit 30 and the reflective display unit 40 should function based on the environment information.
- control unit 10 includes a display control circuit configured to control the display unit 50 such that an image is displayed on the display unit 50 including the self-luminous display unit 30 and the reflective display unit 40.
- the display control circuit includes a first display control circuit configured to drive and control the self-luminous display unit 30 such that an image is generated by the self-luminous display unit 30, and the reflective display unit 40.
- a second display control circuit configured to drive and control the reflective display unit 40 so that an image is generated.
- a display control program (computer readable instruction) for performing display control of the vehicle display device 100 may be stored in a memory (ROM or the like) or an external storage device (SSD or the like) of the control unit 10.
- the processor of the control unit 10 executes the display control program shown in FIG. 6 or 11 by developing the display control program on the RAM and executing the display control program in cooperation with the RAM.
- the display control program may be stored in a computer-readable storage medium such as a magnetic disk, an optical disk, a magneto-optical disk, or a flash memory.
- the vehicle display device 100 may acquire the display control program through a server arranged on a communication network such as a LAN, WAN, RAN, or the Internet.
- the information acquisition unit 20 is configured to acquire environmental information indicating an external environment of the vehicle display device 100 and then transmit the acquired environmental information to the control unit 10.
- the environment information acquired by the information acquisition unit 20 is, for example, position information including brightness, temperature, latitude and longitude on the surface of the vehicle display device 100, date and time information, vehicle traveling direction information, vehicle speed information, and vehicle information. It includes at least one of lighting conditions of the lamp.
- the information acquisition unit 20 is a sensor that measures various types of information and a communication unit that communicates with the outside.
- the self-luminous display unit 30 is configured to irradiate light from a light source (not shown) provided inside the vehicle display device 100 to the outside and display an image using the emitted light.
- the self-luminous display unit 30 includes, for example, a transmissive liquid crystal display device that transmits light from a back light source, an organic EL (OLED) display device, a display device in which a plurality of LEDs (Light Emitting Diodes) are arranged, a field emission display ( FED: Field Emission Display).
- the reflective display unit 40 is configured to reflect light from the outside of the vehicle display device 100 and display an image using the reflected light.
- the reflective display unit 40 is, for example, a reflective liquid crystal display device in which a reflecting mirror is disposed on the back surface, an electronic paper device, or the like.
- the display unit 50 includes a self-luminous display unit 30 and a reflective display unit 40, and is configured to display one image.
- the image display by the display unit 50 is controlled by the control unit 10 to switch between self-emission drawing for displaying an image using the self-emission type display unit 30 and reflection drawing for displaying an image using the reflection type display unit 40. .
- the images displayed on the self-luminous display unit 30 and the reflective display unit 40 are the same image, the same image can be viewed even if the self-luminous display unit 30 and the reflective display unit 40 are switched.
- the image displayed by the display unit 50 may be a still image or a moving image that changes over time.
- Examples of the display unit 50 including the self-luminous display unit 30 and the reflective display unit 40 include, for example, a transflective liquid crystal display device in which a transmissive liquid crystal display device and a reflective liquid crystal display device are combined, and a reflective type. Examples thereof include a hybrid display device that transmits light from an organic EL display device that is provided on the back surface by providing an opening in a reflective electrode of a liquid crystal display device.
- FIG. 2 is a schematic diagram showing the arrangement of the self-luminous display unit 30 and the reflective display unit 40 in the display unit 50.
- FIG. 2A shows the self-luminous display unit 30 and the reflective display unit 40 arranged in a matrix.
- FIG. 2B shows the self-luminous display unit 30 and the reflective display unit 40 arranged in a stripe shape.
- the pixels 51 are arranged in a matrix, and for each pixel 51, the self-luminous pixel 51 a of the self-luminous display unit 30 and the reflective pixel 51 b of the reflective display unit 40. Are arranged adjacent to each other.
- the self-luminous pixel 51 a and the reflective pixel 51 b in each pixel 51 constitute the same portion of the image displayed on the display unit 50. Therefore, one image can be formed by a set of self-luminous pixels 51a, and one image can be formed by a set of reflective pixels 51b.
- the self-luminous pixel group 52a arranged in the row direction of the self-luminous display unit 30 and the reflective pixel group 52b arranged in the row direction of the reflective display unit 40 include Alternatingly arranged in the column direction.
- the self-luminous pixel group 52a and the reflective pixel group 52b are stripes in which pixels constituting the self-luminous display unit 30 and the reflective display unit 40 are arranged in the row direction, respectively, and the row direction of the image displayed on the display unit 50 Display elements. Therefore, one image can be formed by a set of self-luminous pixel groups 52a, and one image can be formed by a set of reflective pixel groups 52b.
- FIG. 2A shows an example in which the self-luminous pixel group 52a and the reflective pixel group 52b are arranged in the column direction, large stripe pixels may be arranged alternately.
- FIG. 3 is a schematic cross-sectional view showing a structural example of the display unit 50.
- FIG. 3A is a schematic cross-sectional view of a display unit 50 including an organic EL element and a reflective liquid crystal display device.
- FIG. 3B is a schematic cross-sectional view of a display unit 50 including a reflective liquid crystal display device and a backlight.
- FIG. 3C is a schematic cross-sectional view of the display unit 50 including a reflective liquid crystal display device and an external light.
- an organic EL element is shown as a self-light-emitting element, but LED elements arranged in a matrix may be used as the self-light-emitting element.
- FIG. 3A is a schematic cross-sectional view showing a display unit 50 including an organic EL element and a reflective liquid crystal display device.
- the display unit 50 includes transparent substrates 53a and 53b, an organic EL layer 54, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, and a color filter layer 57a.
- the transparent substrates 53a and 53b are flat plate members that transmit light, and have sufficient rigidity to hold other members.
- the transparent substrate 53a may be made of an opaque material as long as it can hold other members.
- the organic EL layer 54 includes an electrode (not shown) and an organic EL element structure, and is a layer that emits light as an organic EL element.
- the drive circuit layer 55 is a layer configured to drive and control the liquid crystal layer 57.
- the reflective electrode 56 is partially provided on the drive circuit layer 55 and is formed of a metal that reflects light.
- the liquid crystal layer 57 is a layer in which a liquid crystal material is filled between the drive circuit layer 55 and the transparent substrate 53b.
- the color filter layer 57a is a layer that selectively transmits the wavelength of light transmitted through the liquid crystal layer 57, and a filter for each color of RGB is provided for each pixel.
- the light emitted from the organic EL layer 54 passes through a region where the reflective electrode 56 is not formed, passes through the liquid crystal layer 57 and the transparent substrate 53b, and is output to the outside.
- the region where the reflective electrode 56 is not formed functions as the self-luminous display unit 30.
- the light irradiated from the outside of the display unit 50 is transmitted through the transparent substrate 53b and the liquid crystal layer 57, then reflected by the reflective electrode 56, and again transmitted through the liquid crystal layer 57 and the transparent substrate 53b and output to the outside.
- the region where the reflective electrode 56 is formed functions as the reflective display unit 40.
- FIG. 3B is a schematic cross-sectional view showing the display unit 50 including a reflective liquid crystal display device and a backlight.
- the display unit 50 includes a transparent substrate 53b, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, a color filter layer 57a, and a backlight 58.
- the light emitted from the backlight 58 passes through the region where the reflective electrode 56 is not formed, passes through the liquid crystal layer 57 and the transparent substrate 53b, and is output to the outside.
- the region where the reflective electrode 56 is not formed functions as the self-luminous display unit 30.
- the function of the reflective display unit 40 is the same as that described above.
- FIG. 3C is a schematic cross-sectional view showing the display unit 50 including a reflective liquid crystal display device and an external light.
- the display unit 50 includes a transparent substrate 53b, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, a color filter layer 57a, and an external light 59.
- the light emitted from the external light 59 is transmitted through the transparent substrate 53b and the liquid crystal layer 57, then reflected by the reflective electrode 56, and again transmitted through the liquid crystal layer 57 and the transparent substrate 53b to be output to the outside.
- the region where the reflective electrode 56 is formed functions as the reflective display unit 40.
- the function of the reflective display unit 40 is the same as that described above.
- FIG. 4 is a block diagram showing a vehicle display device 100 including a sensor 21 as the information acquisition unit 20.
- FIG. 5 is a schematic plan view showing an outline of the vehicle display device 100 according to the first embodiment. As shown in FIGS. 4 and 5, in the vehicle display device 100, a sensor 21 is provided as an information acquisition unit 20 around a display unit 50 including a self-luminous display unit 30 and a reflective display unit 40. Yes.
- the sensor 21 is arranged around the display unit 50 and is configured to acquire information on the external environment.
- the sensor 21 includes, for example, at least one of a luminance sensor, a temperature sensor, and a GPS (Global Positioning System) sensor.
- the sensor 21 is communicably connected to the control unit 10 and transmits the measured external environment information to the control unit 10.
- the control unit 10 switches between the display of the self-luminous display unit 30 and the display of the reflection type display unit 40 based on the transmitted environment information.
- the sensor 21 is arranged around the display unit 50 as a separate body from the display unit 50, but pixels included in the self-luminous display unit 30 may be used as an external light sensor.
- the sensor 21 may be arranged in the display area of the display unit 50.
- FIG. 6 is a flowchart showing a method for driving the vehicle display device 100.
- the processor of the control unit 10 executes a display control program (computer-readable command) read into a memory such as a RAM of the control unit 10, thereby executing drive control of the vehicle display device 100. To do.
- step S ⁇ b> 1 the control unit 10 acquires environmental information outside the vehicle from the information acquisition unit 20.
- the control unit 10 may acquire the environment information by controlling the information acquisition unit 20.
- the information acquisition unit 20 may acquire the environmental information periodically or irregularly and then transmit the acquired environmental information to the control unit 10.
- the process proceeds to step S2.
- step S2 the control unit 10 determines which of the image display by the self-luminous display unit 30 and the image display by the reflection display unit 40 should be adopted based on the acquired environment information.
- the control unit 10 determines that the image display by the self-luminous display unit 30 should be adopted according to the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information.
- the process proceeds to step S3.
- the control unit 10 determines that the image display by the reflective display unit 40 should be adopted according to the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. The process proceeds to step S4.
- the environmental information indicates the brightness of external light that is emitted from the outside of the vehicle to the display surface of the display unit 50.
- the control unit 10 determines that the brightness of the external light is equal to or higher than a predetermined value, the control unit 10 determines that the daylight is in the daytime, and then employs the image display by the self-luminous display unit 30. It is determined that it should be performed (self-emission determination).
- the control unit 10 determines that it is nighttime and determines that the image display by the reflective display unit 40 should be adopted. (Reflection judgment).
- step S ⁇ b> 3 the control unit 10 performs image display using the self-luminous display unit 30.
- the control unit 10 may control the luminance of image display by the self-luminous display unit 30 based on the environment information. For example, when the environmental information indicates the brightness of the external light irradiated on the display surface of the display unit 50 from the outside of the vehicle, the control unit 10 uses the self-luminous display unit 30 according to the increase in the brightness of the external light. It is also possible to display an image with high brightness by increasing the light emission.
- the brightness of the self-luminous drawing using the self-luminous display unit 30 is, for example, about 300 cd / m 2 .
- the luminance of the self-luminous drawing using the self-luminous display unit 30 is preferably lower than that of the marker lamp from the viewpoint of satisfying the regulations relating to the vehicle.
- step S4 the control unit 10 displays an image using the reflective display unit 40. After executing the image display by the reflection type display unit 40, the control unit 10 proceeds to step S1 again.
- FIG. 7 is a graph showing the boundary of the switching control in the first embodiment.
- FIG. 7A shows the relationship between the surface brightness and the brightness of the self-luminous display unit 30.
- FIG. 7B shows the relationship between the ambient temperature and the luminance of the self-luminous display unit 30.
- a brightness sensor and a temperature sensor are used as the sensor 21.
- the luminance sensor is configured to measure the luminance (surface luminance) of external light irradiated on the display surface of the display unit 50 as environmental information.
- the temperature sensor is configured to measure an ambient temperature indicating a temperature around the display unit 50.
- the vertical axis represents the luminance of the self-luminous display unit 30, and the horizontal axis represents the surface luminance.
- An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area.
- the control unit 10 performs image display by the self-luminous display unit 30 while keeping the luminance of the self-luminous display unit 30 constant.
- a region where the surface luminance is a predetermined value or more is defined as a reflective region. In the reflective area, the control unit 10 sets the luminance value of the self-luminous display unit 30 to 0 and performs image display by the reflective display unit 40.
- the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the ambient temperature of the display unit 50.
- the control unit 10 performs image display by the self-luminous display unit 30 with the brightness obtained in FIG. 7A regardless of the ambient temperature.
- step S ⁇ b> 2 of FIG. 6 the control unit 10 determines whether the vehicle display device 100 is a self-luminous region or a reflection according to the comparison between the determination criteria shown in FIGS. 7A and 7B and the environment information. Determine if it belongs to the mold area.
- the control unit 10 determines that the vehicle display device 100 belongs to the self-luminous region, the control unit 10 displays an image using the self-luminous display unit 30.
- the luminance of the light emitted from the light source of the self-luminous display unit 30 to the outside may be constant as shown in FIG. 7A, or may vary depending on the surface luminance. Good.
- the vehicle display device 100 can switch between self-emission drawing by the self-emission type display unit 30 and reflection drawing by the reflection type display unit 40 based on the current environment information.
- the power consumption of the display apparatus 100 for vehicles can be suppressed by employ
- a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100.
- FIG. 8 is a graph showing the boundary of the switching control in the second embodiment.
- FIG. 8A shows the relationship between the surface luminance and the luminance of the self-luminous display unit 30.
- FIG. 8B shows the relationship between the ambient temperature and the luminance of the self-luminous display unit 30.
- a luminance sensor and a temperature sensor are used as the sensor 21.
- the luminance sensor is configured to measure the luminance of external light irradiated on the display surface of the display unit 50 as environmental information.
- the temperature sensor is configured to measure an ambient temperature indicating a temperature around the display unit 50.
- the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the surface luminance.
- An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area.
- the control unit 10 performs image display using the self-luminous display unit 30 in the self-luminous region. At this time, when the surface luminance is equal to or lower than the first surface luminance value, the luminance value of the self-luminous display unit 30 is constant. On the other hand, when the surface luminance is within the range of the first surface luminance value to the second surface luminance value, the luminance value of the self-luminous display unit 30 is decreased. An area that is equal to or greater than the second surface luminance value is defined as a reflective area. In the reflection type region, the control unit 10 sets the luminance value of the self-luminous display unit 30 to 0 and performs image display on the reflection type display unit 40.
- the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the ambient temperature of the display unit 50.
- the control unit 10 displays an image by the self-luminous display unit 30 with the brightness obtained in FIG. Do.
- the control unit 10 reduces the luminance of the self-luminous display unit 30 by multiplying the luminance value obtained in (a) of FIG. 8 by a coefficient.
- step S2 of FIG. 6 the control unit 10 determines that the environment of the vehicle display device 100 is a self-luminous region according to the comparison between the determination criteria shown in FIGS. 8A and 8B and the environmental information. Alternatively, it is determined whether it belongs to the reflection type region.
- the control unit 10 determines that the vehicle display device 100 belongs to the self-luminous region
- the control unit 10 displays an image using the self-luminous display unit 30.
- the surface luminance exceeds the second surface luminance value as shown in FIG. 8A and when the ambient temperature becomes high as shown in FIG. In the case where the luminance value becomes 0, the control unit 10 performs image display using the reflective display unit 40.
- the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40 in a bright daytime environment.
- a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100.
- the ambient temperature of the vehicle display device 100 is high, the upper limit of the display luminance on the self-luminous display unit 30 is low, so that the self-luminous display unit 30 is driven by a large current in a high temperature environment. To be prevented. In this way, it is possible to prevent the display unit 50 from being deteriorated.
- a third embodiment will be described with reference to FIG.
- the description overlapping with that of the first embodiment is omitted.
- a part of the image displayed on the display unit 50 is used as a marker lamp.
- the control unit 10 changes the area and luminance of the marker lamp portion in the self-luminous display unit 30 according to the environmental information acquired by the information acquisition unit 20.
- display control similar to that in the first embodiment or the second embodiment is applied.
- FIG. 9 is a graph showing control of the self-luminous display unit 30 in the third embodiment.
- FIG. 9A shows the relationship between the surface luminance and the luminance of the self-luminous display unit 30.
- FIG. 9B shows the relationship between the ambient temperature and the luminance of the marker lamp portion.
- FIG. 9C shows the relationship between the ambient temperature and the area of the marker lamp.
- (D) of FIG. 9 shows the relationship between atmospheric temperature and the luminous intensity value of a marker lamp part.
- a luminance sensor and a temperature sensor are used as the sensor 21.
- the luminance sensor is configured to measure the luminance of external light irradiated on the display surface of the display unit 50 as environmental information.
- the temperature sensor is configured to measure the ambient temperature around the display unit 50.
- the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the surface luminance.
- An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area.
- the control unit 10 displays an image with the luminance of the self-luminous display unit 30 constant in the self-luminous region.
- a region where the surface luminance is a predetermined value or more is defined as a reflective region.
- the control unit 10 displays an image on the reflection type display unit 40 after setting the luminance value of the self-luminous display unit 30 to 0 in the reflection type region.
- the vertical axis indicates the luminance of the self-luminous display unit 30 in the marker lamp portion
- the horizontal axis indicates the ambient temperature of the display unit 50.
- the luminance value of the self-luminous display unit 30 that is the marker lamp portion is constant.
- the luminance value of the self-luminous display unit 30 that is the marker lamp portion is decreased.
- the vertical axis represents the area of the self-luminous display unit 30 in the marker lamp portion
- the horizontal axis represents the ambient temperature of the display unit 50.
- the display area of the self-luminous display unit 30 that is the marker lamp portion is constant.
- the ambient temperature exceeds a predetermined ambient temperature, the area of the marker lamp portion is increased.
- the vertical axis indicates the luminous intensity value of the self-luminous display unit 30 in the marker lamp portion
- the horizontal axis indicates the ambient temperature of the display unit 50. Since the luminous intensity value of the marker lamp portion in the self-luminous display unit 30 is a value obtained by multiplying the luminance and the area, the luminous intensity value can be made constant regardless of the ambient temperature. At this time, the light intensity value of the marker lamp portion is set so as to satisfy the legal requirement.
- step S3 shown in FIG. 6 the control unit 10 occupies the marker lamp portion in the self-luminous display unit 30 in accordance with the comparison between the determination criteria shown in FIGS. 9A to 9D and the environmental information. Change the area and brightness.
- the luminance is kept constant and the area of the indicator lamp portion is expanded to satisfy the luminous intensity as a legal requirement, and visibility is ensured even in daylight.
- the luminous intensity can be ensured with the luminance kept constant, the power consumption per unit area of the self-luminous display unit 30 does not increase, and the display unit 50 is prevented from being deteriorated.
- the durability of the vehicle display device 100 can be improved and the life of the vehicle display device 100 can be extended.
- the area of the marker lamp is enlarged, and the brightness of the self-luminous display unit 30 is lowered to satisfy the luminosity that is a legal requirement.
- the durability of the vehicle display device 100 can be improved and the life of the vehicle display device 100 can be extended.
- the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40.
- a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100.
- a part of the display unit 50 is used as a marker lamp, and the area and luminance of the marker lamp part are controlled based on environmental information. As described above, the power consumption of the vehicle display device 100 can be reduced and the life of the vehicle display device 100 can be reduced while ensuring the visibility of the vehicle display device 100 so as to satisfy the legal requirements related to the marker lamp portion.
- FIG. 10 is a block diagram illustrating a configuration of the vehicle display device 110 according to the fourth embodiment. Also in the present embodiment, as in the first embodiment, the vehicle display device 110 includes the control unit 10, the communication unit 22, and the display unit 50.
- the communication unit 22 (an example of an information acquisition unit) is mounted inside the vehicle display device 110 and configured to communicate with the outside wirelessly or by wire.
- the communication unit 22 acquires environmental information outside the vehicle and then transmits the environmental information to the control unit 10 wirelessly or by wire.
- An example of the communication unit 22 is a wireless communication module having a transmission / reception circuit and an antenna.
- an ambient light sensor, a clock, a GPS device, a computer that controls driving of the vehicle, or the like mounted on the vehicle transmits environmental information to the communication unit 22.
- the processor of the control unit 10 executes a display control program (computer readable instruction) read into a memory such as a RAM of the control unit 10 as shown in FIG.
- the process shown is executed.
- the communication unit 22 acquires the environment information instead of the information acquisition unit 20, and transmits the acquired environment information to the control unit 10. After the control unit 10 acquires the environment information, the process proceeds to step S2.
- the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40.
- a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100.
- a means (sensor or the like) for measuring environmental information is provided outside the vehicle display device 110. Further, the control unit 10 acquires environment information via the communication unit 22. Thus, since the number of parts of the vehicle display device 110 can be reduced, the vehicle display device 100 can be reduced in weight and thickness.
- FIG. 11 is a flowchart showing a driving method of the vehicle display device 100 according to this embodiment.
- the control unit 10 determines that image display by the self-luminous display unit 30 should be adopted, image display is performed using both the self-luminous display unit 30 and the reflective display unit 40. Do.
- step S11 the control unit 10 acquires environmental information indicating the environment outside the vehicle from the information acquisition unit 20. After the control unit 10 acquires the environment information, the process proceeds to step S12.
- step S12 the control unit 10 employs either an image display by both the self-luminous display unit 30 and the reflective display unit 40 or an image display by only the reflective display unit 40 based on the acquired environment information. Determine what should be done.
- the control unit 10 displays an image on both the self-luminous display unit 30 and the reflective display unit 40 in accordance with the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. If it is determined that it should be adopted, the process proceeds to step S13.
- the control unit 10 determines that the image display using only the reflective display unit 40 should be adopted in accordance with the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. In the present process, the process proceeds to step S14.
- step S ⁇ b> 13 the control unit 10 performs image display using the reflective display unit 40. After executing the image display by the reflection type display unit 40, the control unit 10 proceeds to step S14. In step S ⁇ b> 14, the control unit 10 performs image display using the self-luminous display unit 30. After executing the image display by the self-luminous display unit 30, the control unit 10 proceeds to step S1 again. In addition, the process of step S13 may be performed after the process of step S14.
- step S15 the control unit 10 performs image display using the reflective display unit 40.
- the control unit 10 may perform image display using only the reflective display unit 40, or may perform both image display using the reflective display unit 40 and image display using the self-luminous display unit 30. Good. After the control unit 10 performs image display using the reflective display unit 40, the process proceeds to step S1 again.
- both image display using the reflective display unit 40 and image display using the self-luminous display unit 30 are executed as a result of the determination process in step S12. For this reason, even if the outside light is insufficient, the amount of light of the entire display unit 50 can be secured by using the image display by the reflective display unit 40 in an auxiliary manner, and the power consumption in the self-luminous display unit 30 can be reduced. Can be suppressed.
- FIG. 12 is a schematic diagram showing the display unit 50 in the present embodiment.
- FIG. 12A shows an example of the configuration of the display unit 50, and FIG. Another example is shown.
- the display unit 50 is used as a marker lamp.
- the marker lamps such as the stop lamp and the direction indicator to output a light intensity satisfying the legal requirements
- the self-luminous pixel 51b is used to ensure a stable output regardless of the environment.
- the marker lamp indicates braking, vehicle width, traveling direction, and the like to the following vehicle, and always emits only a specific color of a specific pixel.
- the marker lamp is frequently lit during driving of the vehicle. Therefore, the self-luminous pixel 51b used for the marker lamp must always output a sufficient luminous intensity, and tends to deteriorate as compared with other portions. In some cases, the self-luminous pixel 51b may be darker than the other parts due to aging.
- the portion of the display unit 50 that is always used for the marker lamp is fixed as the marker lamp portion, and the marker lamp portion is configured by only the self-luminous pixels 51a.
- the part used for purposes other than the marker lamp is configured by combining the self-luminous pixel 51a and the reflective pixel 51b, and when the display unit surface is bright such as during the daytime, the reflective pixel 51b is used.
- the configuration is as follows.
- the display part 50 displays the stop, tail lamp display part 61, the turn signal display part 62 which are only for a marker lamp, and the general display which displays contents other than a marker lamp. It is divided into a part 63.
- the stop / tail lamp display unit 61 functions as a stop lamp (stop lamp) and a tail lamp (vehicle width lamp), and emits only red, which is a functional color.
- the turn signal display unit 62 functions as a direction indicator and emits only the amber color which is a functional color.
- the general display unit 63 performs display for purposes other than the stop lamp, the tail lamp, and the direction indicator, and emits various colors according to the display target.
- the stop, the tail lamp display unit 61, and the turn signal display unit 62 which function as a marker lamp, only function as the self-luminous display unit 30, and the general display unit 63 is self-luminous depending on the situation of external light.
- the function is switched between the display unit 30 and the reflective display unit 40.
- the self-emission display unit 30 includes a stop, a tail lamp display unit 61, and a turn signal display unit 62, which are indicator light portions that emit only functional colors necessary for the indicator light. It will be included.
- FIG. 12 shows an example which divided
- the display unit 50 may be divided into a region responsible for a marker lamp and a region responsible for general display.
- region which bears a general display may be divided into the display part 50 by another method.
- the general display unit 63 is composed of self-luminous pixels 51a and reflective pixels 51b (see FIG. 3A). .
- the general display unit 63 includes a RGB color filter layer 57.
- RGB is assigned in units of sub-pixels, and the three colors are arranged almost equally.
- a plurality of colors including white are emitted by additively mixing the three RGB colors according to the display target.
- FIG. 13C is an example, and other arrangements may be used as long as the three colors are substantially evenly distributed.
- the pixels of the stop, tail lamp display unit 61, and turn signal display unit 62 are composed of only the self-luminous pixels 51a. Therefore, the structure is such that, for example, the structure including the organic EL layer shown in FIG.
- the stop and tail lamp display unit 61 always emits red light, so only R is used, and the arrangement of colors is not limited as shown schematically in FIG.
- the sub-pixels of R are also R. Since the turn signal display unit 62 always emits amber color, the color filter layer 57 includes R and G, and B does not.
- R and G are alternately arranged (in a checkered pattern) as schematically shown in FIG. FIG. 13B is an example, and other arrangements such as those in which R and G are arranged in units of rows may be used.
- the color is not limited to the color filter layer 57 as described above, but is also color-coded according to the emission color of the organic EL element. It may be a shape. In short, the stop and tail lamp display unit 61 emits only R and outputs only red, and the turn signal display unit 62 emits R and G and mixes both to output only amber color as a whole. If it is a form, the self-luminous display apparatus by various well-known organic EL elements is applicable.
- the stop / tail lamp display unit 61 is not limited to one composed of a plurality of pixels, and the predetermined region may be composed of an integral R organic EL layer.
- the light emitter is not limited to the organic EL element, but may be an LED element. That is, the stop and tail lamp display unit 61 may be configured by only R LED elements, and the turn signal display unit 62 may be configured by R and G LED elements.
- the pixels constituting the stop and tail lamp display unit 61 when the stop lamp is turned on, the pixels constituting the stop and tail lamp display unit 61 emit light.
- the number of R per unit area K of the stop and tail lamp display unit 61 is larger than the number of R per unit area K of the general display unit 63. .
- the luminous intensity per unit area K can sufficiently satisfy the legal requirement even if the luminous intensity of each sub-pixel unit or one pixel unit is small.
- the number of R and G per unit area K of the turn signal display unit 62 is large, and the density of R and G of the turn signal display unit 62 is high. For this reason, the light intensity satisfying the legal requirement can be secured with a small current value, the current value per pixel can be reduced, and the deterioration of the self-luminous pixel 51 can be suppressed.
- the stop, tail lamp display unit 61, and turn signal display unit 62 are composed of only the self-luminous pixels 51a, they can always output a constant luminous intensity without being influenced by external light.
- the general display unit 63 uses the self-luminous pixel 51a and the reflective pixel 51b separately for daytime and nighttime, it is possible to reduce power consumption while improving visibility.
- the transmission type display part etc. which use a backlight as shown to (b) of FIG. 3 may be used.
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Abstract
The display device (100) for vehicles is configured to be installed in a vehicle and display an image toward the outside of the vehicle, and is provided with: a self-luminous display unit (30) configured so as to display an image toward the outside of the vehicle by emitting light emitted from a light source toward the outside of the vehicle; a reflective display unit (40) configured so as to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle; an information acquisition unit (20) configured so as to acquire environmental information indicating the environment outside the vehicle; and a control unit (10) configured so as to switch, on the basis of the acquired environmental information, between image display by the self-luminous display unit and image display by the reflective display unit.
Description
本開示は、車両用ディスプレー装置、車両用ディスプレー装置の制御方法、プログラム及び当該プログラムが記憶されたコンピュータ可読記憶媒体に関する。
The present disclosure relates to a vehicle display device, a control method for a vehicle display device, a program, and a computer-readable storage medium in which the program is stored.
従来から、運転者が操作する通常の車両では、車両の走行状態を車両周囲の他車両や歩行者等に対して示すために、停止灯や尾灯・方向指示器等を手動で操作していた。近年になって、車両の自動運転技術が著しく発展してきており、車両に備えた情報処理手段によって車両の各種操作を代替する状況が発生しうる環境が整いつつある。自動運転技術では、各種センサの検出結果に基づいて情報処理手段が車両を操作するため、複雑な情報を瞬時に処理することが可能であり、画像表示装置を用いて走行状態等を他車両や歩行者等に対して示すことも可能である。
Conventionally, in a normal vehicle operated by a driver, a stop light, a taillight, a direction indicator, etc. have been manually operated in order to show the running state of the vehicle to other vehicles and pedestrians around the vehicle. . In recent years, automatic driving technology for vehicles has been remarkably developed, and an environment in which a situation in which various operations of the vehicle are substituted by information processing means provided in the vehicle can be established. In the automatic driving technology, since the information processing means operates the vehicle based on the detection results of various sensors, it is possible to instantaneously process complex information, and the image display device can be used to check the traveling state etc. It can also be shown to pedestrians.
また、広告表示や装飾目的など、走行状態以外の情報についても車両の外部に向けて表示することが望まれている。特許文献1には、車両に画像表示装置を備えて各種情報を車両外部に対して表示する技術が提案されている。
In addition, it is desired that information other than the driving state such as advertisement display and decoration purposes be displayed outside the vehicle. Patent Document 1 proposes a technique of providing an image display device in a vehicle and displaying various information on the outside of the vehicle.
特許文献1のように車両の外装にディスプレー装置を設置した場合、外部環境において車両に照射される光の強度によって視認性が大きく変化するという問題がある。夜間の走行では、車両及びディスプレー装置に照射される光が弱く、画面を良好に視認するためにはディスプレー装置が100~300cd/m2程度の輝度で発光することが適している。反面、日中の走行ではディスプレー装置に照射される光が強く、2,000~10,000cd/m2程度の輝度で発光する必要がある。特に、ディスプレー装置に直接太陽光が照射されるような状況では、さらに高輝度で発光させなくては画面の視認が困難であった。
When a display device is installed on the exterior of a vehicle as in Patent Document 1, there is a problem that visibility changes greatly depending on the intensity of light irradiated on the vehicle in an external environment. When driving at night, the light applied to the vehicle and the display device is weak, and it is suitable for the display device to emit light with a luminance of about 100 to 300 cd / m 2 in order to see the screen well. On the other hand, during daytime driving, the light applied to the display device is strong, and it is necessary to emit light with a luminance of about 2,000 to 10,000 cd / m 2 . In particular, in a situation where sunlight is directly applied to the display device, it is difficult to visually recognize the screen unless the display device emits light with higher brightness.
ディスプレー装置としてバックライト付きの透過型液晶表示装置や有機EL(Electro Luminescence)装置などの自発光型表示装置を用い、日中と夜間に必要な輝度を得て、画面の視認性を確保することも可能である。しかし一般的に自発光型表示装置では、輝度値に比例して消費電力が高くなり、画面の焼付きや発光効率の低下などが生じて寿命も短くなる傾向があるため、日中に高輝度の画面表示を継続することは好ましくない。
Use a self-luminous display device such as a transmissive liquid crystal display device with backlight or an organic EL (Electro Luminescence) device as a display device, and obtain the necessary brightness during the day and night to ensure the visibility of the screen. Is also possible. However, in general, a self-luminous display device has higher power consumption in proportion to the luminance value, and tends to have a shorter life due to screen burn-in and reduced luminous efficiency. It is not preferable to continue the screen display.
本開示は、視認性を向上させつつ消費電力を低減することが可能な車両用ディスプレー装置、車両用ディスプレー装置の制御方法、プログラム及びコンピュータ可読記憶媒体を提供する。
The present disclosure provides a display device for a vehicle, a control method for the display device for a vehicle, a program, and a computer-readable storage medium that can reduce power consumption while improving visibility.
本開示の一態様によれば、車両に搭載されると共に、前記車両の外部に向けて画像を表示するように構成された車両用ディスプレー装置が提供される。
車両用ディスプレー装置は、
光源から出射された光を前記車両の外部に向けて出射することで、前記車両の外部に向けて画像を表示するように構成された自発光型表示部と、
前記車両の外部からの光を反射することで、前記車両の外部に向けて画像を表示するように構成された反射型表示部と、
前記車両の外部の環境を示す環境情報を取得するように構成された情報取得部と、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるように構成された制御部と、
を備える。 According to one aspect of the present disclosure, there is provided a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
The vehicle display device
A self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle;
A reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle;
An information acquisition unit configured to acquire environmental information indicating an environment outside the vehicle;
A control unit configured to switch between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environment information;
Is provided.
車両用ディスプレー装置は、
光源から出射された光を前記車両の外部に向けて出射することで、前記車両の外部に向けて画像を表示するように構成された自発光型表示部と、
前記車両の外部からの光を反射することで、前記車両の外部に向けて画像を表示するように構成された反射型表示部と、
前記車両の外部の環境を示す環境情報を取得するように構成された情報取得部と、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるように構成された制御部と、
を備える。 According to one aspect of the present disclosure, there is provided a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
The vehicle display device
A self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle;
A reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle;
An information acquisition unit configured to acquire environmental information indicating an environment outside the vehicle;
A control unit configured to switch between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environment information;
Is provided.
本開示の一態様によれば、車両に搭載されると共に、前記車両の外部に向けて画像を表示するように構成された車両用ディスプレー装置の制御方法が提供される。
当該制御方法は、
光源から出射された光を前記車両の外部に向けて出射することで前記車両の外部に向けて画像を表示するように構成された自発光型表示部を用いて、画像を表示するステップと、
前記車両の外部からの光を反射することで前記車両の外部に向けて画像を表示するように構成された反射型表示部を用いて、画像を表示するステップと、
前記車両の外部の環境を示す環境情報を取得するステップと、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるステップと、
を含む。 According to one aspect of the present disclosure, there is provided a control method for a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
The control method is
Displaying the image using a self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle; and
Displaying an image using a reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle; and
Obtaining environmental information indicating an environment outside the vehicle;
Switching between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environmental information;
including.
当該制御方法は、
光源から出射された光を前記車両の外部に向けて出射することで前記車両の外部に向けて画像を表示するように構成された自発光型表示部を用いて、画像を表示するステップと、
前記車両の外部からの光を反射することで前記車両の外部に向けて画像を表示するように構成された反射型表示部を用いて、画像を表示するステップと、
前記車両の外部の環境を示す環境情報を取得するステップと、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるステップと、
を含む。 According to one aspect of the present disclosure, there is provided a control method for a vehicle display device that is mounted on a vehicle and configured to display an image toward the outside of the vehicle.
The control method is
Displaying the image using a self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle; and
Displaying an image using a reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle; and
Obtaining environmental information indicating an environment outside the vehicle;
Switching between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environmental information;
including.
(第1実施形態)
以下、第1実施形態について、図面を参照して詳細に説明する。各図面に示される同一または同等の構成要素、部材、処理には、同一の符号を付すものとし、適宜重複した説明は省略する。図1は、第1実施形態における車両用ディスプレー装置100の構成を示すブロック図である。車両用ディスプレー装置100は、車両に搭載されると共に、車両の外部に向けて画像を提示するように構成されている。車両用ディスプレー装置100は、制御部10と、情報取得部20と、自発光型表示部30と、反射型表示部40を備えており、自発光型表示部30と反射型表示部40により表示部50が構成されている。 (First embodiment)
Hereinafter, a first embodiment will be described in detail with reference to the drawings. The same or equivalent components, members, and processes shown in the drawings are denoted by the same reference numerals, and repeated descriptions are omitted as appropriate. FIG. 1 is a block diagram showing a configuration of avehicle display device 100 according to the first embodiment. The vehicle display device 100 is mounted on a vehicle and is configured to present an image toward the outside of the vehicle. The vehicle display device 100 includes a control unit 10, an information acquisition unit 20, a self-luminous display unit 30, and a reflective display unit 40, and is displayed by the self-luminous display unit 30 and the reflective display unit 40. Part 50 is configured.
以下、第1実施形態について、図面を参照して詳細に説明する。各図面に示される同一または同等の構成要素、部材、処理には、同一の符号を付すものとし、適宜重複した説明は省略する。図1は、第1実施形態における車両用ディスプレー装置100の構成を示すブロック図である。車両用ディスプレー装置100は、車両に搭載されると共に、車両の外部に向けて画像を提示するように構成されている。車両用ディスプレー装置100は、制御部10と、情報取得部20と、自発光型表示部30と、反射型表示部40を備えており、自発光型表示部30と反射型表示部40により表示部50が構成されている。 (First embodiment)
Hereinafter, a first embodiment will be described in detail with reference to the drawings. The same or equivalent components, members, and processes shown in the drawings are denoted by the same reference numerals, and repeated descriptions are omitted as appropriate. FIG. 1 is a block diagram showing a configuration of a
制御部10は、各種演算装置(例えば、CPUやGPU等のプロセッサ)や内部記憶装置(例えば、ROMやRAM等のメモリ)、外部記憶装置(例えば、ハードディスクやSSD(Solid State Drive)等)、情報通信手段(例えば、無線又は有線通信モジュール)等を備える。制御部10は、車両用ディスプレー装置100の内部に設けられてもよいし、車両用ディスプレー装置100の外部に設けられてもよい。例えば、制御部10は、車両の運転制御を行う情報処理手段の一部として構成されてもよい。制御部10は、情報取得部20によって取得された車両用ディスプレー装置100の外部の環境を示す環境情報に基づいて、自発光型表示部30と反射型表示部40の表示を切り替えるように構成されている。つまり、制御部10は、環境情報に基づいて、自発光型表示部30又は反射型表示部40のうちのどちらを機能させるべきかを決定するように構成されている。また、制御部10は、自発光型表示部30と反射型表示部40を含む表示部50に画像が表示されるように表示部50を制御するように構成された表示制御回路を備える。この点において、表示制御回路は、自発光型表示部30によって画像が生成されるように自発光型表示部30を駆動制御するように構成された第1表示制御回路と、反射型表示部40によって画像が生成されるように反射型表示部40を駆動制御するように構成された第2表示制御回路とを備える。制御部10のメモリ(ROM等)や外部記憶装置(SSD等)には、車両用ディスプレー装置100の表示制御を行うための表示制御プログラム(コンピュータ可読命令)が記憶されてもよい。制御部10のプロセッサは、当該表示制御プログラムをRAM上に展開した上で、RAMとの協働により当該表示制御プログラムを実行することで、図6又は図11に示す表示制御処理を実行する。また、当該表示制御プログラムは、磁気ディスク、光ディスク、光磁気ディスク、フラッシュメモリ等のコンピュータ読取可能な記憶媒体に記憶されてもよい。また、車両用ディスプレー装置100は、LAN,WAN,RAN又はインターネット等の通信ネットワーク上に配置されたサーバを通じて当該表示制御プログラムを取得してもよい。
The control unit 10 includes various arithmetic devices (for example, processors such as CPU and GPU), internal storage devices (for example, memories such as ROM and RAM), external storage devices (for example, hard disk and SSD (Solid State Drive)), Information communication means (for example, wireless or wired communication module) is provided. The control unit 10 may be provided inside the vehicle display device 100 or may be provided outside the vehicle display device 100. For example, the control unit 10 may be configured as part of an information processing unit that performs driving control of the vehicle. The control unit 10 is configured to switch the display of the self-luminous display unit 30 and the reflective display unit 40 based on environmental information indicating the environment outside the vehicle display device 100 acquired by the information acquisition unit 20. ing. That is, the control unit 10 is configured to determine which of the self-luminous display unit 30 and the reflective display unit 40 should function based on the environment information. In addition, the control unit 10 includes a display control circuit configured to control the display unit 50 such that an image is displayed on the display unit 50 including the self-luminous display unit 30 and the reflective display unit 40. In this regard, the display control circuit includes a first display control circuit configured to drive and control the self-luminous display unit 30 such that an image is generated by the self-luminous display unit 30, and the reflective display unit 40. And a second display control circuit configured to drive and control the reflective display unit 40 so that an image is generated. A display control program (computer readable instruction) for performing display control of the vehicle display device 100 may be stored in a memory (ROM or the like) or an external storage device (SSD or the like) of the control unit 10. The processor of the control unit 10 executes the display control program shown in FIG. 6 or 11 by developing the display control program on the RAM and executing the display control program in cooperation with the RAM. The display control program may be stored in a computer-readable storage medium such as a magnetic disk, an optical disk, a magneto-optical disk, or a flash memory. The vehicle display device 100 may acquire the display control program through a server arranged on a communication network such as a LAN, WAN, RAN, or the Internet.
情報取得部20は、車両用ディスプレー装置100の外部の環境を示す環境情報を取得した上で、当該取得された環境情報を制御部10に送信するように構成されている。情報取得部20によって取得された環境情報は、例えば、車両用ディスプレー装置100の表面における輝度、温度、緯度と経度を含む位置情報、日時情報、車両の進行方向情報、車両の速度情報及び車両用灯具の点灯状況のうちの少なくとも一つを含む。情報取得部20は、後述するように、各種情報を測定するセンサや外部との通信を行う通信部である。
The information acquisition unit 20 is configured to acquire environmental information indicating an external environment of the vehicle display device 100 and then transmit the acquired environmental information to the control unit 10. The environment information acquired by the information acquisition unit 20 is, for example, position information including brightness, temperature, latitude and longitude on the surface of the vehicle display device 100, date and time information, vehicle traveling direction information, vehicle speed information, and vehicle information. It includes at least one of lighting conditions of the lamp. As will be described later, the information acquisition unit 20 is a sensor that measures various types of information and a communication unit that communicates with the outside.
自発光型表示部30は、車両用ディスプレー装置100内部に設けられた図示しない光源からの光を外部に照射するとともに、その照射光を利用して画像を表示するように構成されている。自発光型表示部30は、例えば、背光源からの光を透過させる透過型液晶表示装置や、有機EL(OLED)表示装置、LED(Light Emitting Diode)を複数配置した表示装置、電界放出ディスプレー(FED:Field Emission Display)装置等である。
The self-luminous display unit 30 is configured to irradiate light from a light source (not shown) provided inside the vehicle display device 100 to the outside and display an image using the emitted light. The self-luminous display unit 30 includes, for example, a transmissive liquid crystal display device that transmits light from a back light source, an organic EL (OLED) display device, a display device in which a plurality of LEDs (Light Emitting Diodes) are arranged, a field emission display ( FED: Field Emission Display).
反射型表示部40は、車両用ディスプレー装置100の外部からの光を反射するとともに、その反射光を利用して画像を表示するように構成されている。反射型表示部40は、例えば、背面に反射鏡を配置した反射型液晶表示装置や、電子ペーパー装置等である。
The reflective display unit 40 is configured to reflect light from the outside of the vehicle display device 100 and display an image using the reflected light. The reflective display unit 40 is, for example, a reflective liquid crystal display device in which a reflecting mirror is disposed on the back surface, an electronic paper device, or the like.
表示部50は、自発光型表示部30と反射型表示部40を含み、1つの画像を表示するように構成されている。表示部50による画像表示は制御部10によって制御され、自発光型表示部30を用いて画像表示をする自発光描画と、反射型表示部40を用いて画像表示をする反射描画とが切り替えられる。自発光型表示部30と反射型表示部40で表示される画像が同一画像である場合、自発光型表示部30と反射型表示部40を切り替えても同一画像を視認することができる。表示部50によって表示される画像は、静止画像であっても経時的に変化する動画像であってもよい。
The display unit 50 includes a self-luminous display unit 30 and a reflective display unit 40, and is configured to display one image. The image display by the display unit 50 is controlled by the control unit 10 to switch between self-emission drawing for displaying an image using the self-emission type display unit 30 and reflection drawing for displaying an image using the reflection type display unit 40. . When the images displayed on the self-luminous display unit 30 and the reflective display unit 40 are the same image, the same image can be viewed even if the self-luminous display unit 30 and the reflective display unit 40 are switched. The image displayed by the display unit 50 may be a still image or a moving image that changes over time.
自発光型表示部30と反射型表示部40から構成される表示部50の例としては、例えば、透過型液晶表示装置と反射型液晶表示装置を組み合わせた半透過型液晶表示装置や、反射型液晶表示装置の反射電極に開口部を設けて裏面に設けた有機EL表示装置からの光を透過させるハイブリッド型ディスプレー装置などが挙げられる。図2は、表示部50における自発光型表示部30と反射型表示部40の配置を示す模式図である。図2の(a)は、マトリクス状に配置された自発光型表示部30と反射型表示部40とを示す。図2の(b)は、ストライプ状に配置された自発光型表示部30と反射型表示部40とを示す。
Examples of the display unit 50 including the self-luminous display unit 30 and the reflective display unit 40 include, for example, a transflective liquid crystal display device in which a transmissive liquid crystal display device and a reflective liquid crystal display device are combined, and a reflective type. Examples thereof include a hybrid display device that transmits light from an organic EL display device that is provided on the back surface by providing an opening in a reflective electrode of a liquid crystal display device. FIG. 2 is a schematic diagram showing the arrangement of the self-luminous display unit 30 and the reflective display unit 40 in the display unit 50. FIG. 2A shows the self-luminous display unit 30 and the reflective display unit 40 arranged in a matrix. FIG. 2B shows the self-luminous display unit 30 and the reflective display unit 40 arranged in a stripe shape.
図2の(a)に示した表示部50では、画素51がマトリクス状に配置されており、画素51毎に自発光型表示部30の自発光画素51aと反射型表示部40の反射画素51bが含まれて、互いに隣接して配置されている。各画素51における自発光画素51aと反射画素51bは、表示部50で表示される画像の同一箇所を構成している。したがって、自発光画素51aの集合でも1つの画像を構成可能であると共に、反射画素51bの集合でも1つの画像を構成可能である。
In the display unit 50 shown in FIG. 2A, the pixels 51 are arranged in a matrix, and for each pixel 51, the self-luminous pixel 51 a of the self-luminous display unit 30 and the reflective pixel 51 b of the reflective display unit 40. Are arranged adjacent to each other. The self-luminous pixel 51 a and the reflective pixel 51 b in each pixel 51 constitute the same portion of the image displayed on the display unit 50. Therefore, one image can be formed by a set of self-luminous pixels 51a, and one image can be formed by a set of reflective pixels 51b.
図2の(b)に示した表示部50では、自発光型表示部30の行方向に並んだ自発光画素群52aと、反射型表示部40の行方向に並んだ反射画素群52bが、列方向に交互に配置されている。自発光画素群52aと反射画素群52bは、それぞれ自発光型表示部30と反射型表示部40を構成する画素が行方向に並んだストライプであり、表示部50で表示される画像の行方向要素を表示する。したがって、自発光画素群52aの集合でも1つの画像を構成可能であると共に、反射画素群52bの集合でも1つの画像を構成可能である。図2(a)では自発光画素群52aと反射画素群52bが列方向に並んだ例を示したが、大きなストライプ状の画素が交互に並べられてもよい。
In the display unit 50 shown in FIG. 2B, the self-luminous pixel group 52a arranged in the row direction of the self-luminous display unit 30 and the reflective pixel group 52b arranged in the row direction of the reflective display unit 40 include Alternatingly arranged in the column direction. The self-luminous pixel group 52a and the reflective pixel group 52b are stripes in which pixels constituting the self-luminous display unit 30 and the reflective display unit 40 are arranged in the row direction, respectively, and the row direction of the image displayed on the display unit 50 Display elements. Therefore, one image can be formed by a set of self-luminous pixel groups 52a, and one image can be formed by a set of reflective pixel groups 52b. Although FIG. 2A shows an example in which the self-luminous pixel group 52a and the reflective pixel group 52b are arranged in the column direction, large stripe pixels may be arranged alternately.
図3は、表示部50の構造例を示す模式断面図である。図3の(a)は、有機EL素子と反射型液晶表示装置からなる表示部50の模式的断面図を示す。図3の(b)は、反射型液晶表示装置とバックライトからなる表示部50の模式的断面図を示す。図3の(c)は、反射型液晶表示装置と外部ライトからなる表示部50の模式的断面図を示す。図3の(a)では、自発光素子として有機EL素子を示したが、自発光素子としてマトリクス状に配置されたLED素子を用いてもよい。
FIG. 3 is a schematic cross-sectional view showing a structural example of the display unit 50. FIG. 3A is a schematic cross-sectional view of a display unit 50 including an organic EL element and a reflective liquid crystal display device. FIG. 3B is a schematic cross-sectional view of a display unit 50 including a reflective liquid crystal display device and a backlight. FIG. 3C is a schematic cross-sectional view of the display unit 50 including a reflective liquid crystal display device and an external light. In FIG. 3A, an organic EL element is shown as a self-light-emitting element, but LED elements arranged in a matrix may be used as the self-light-emitting element.
図3の(a)は、有機EL素子と反射型液晶表示装置からなる表示部50を示す模式断面図である。本例では、表示部50は、透明基板53a,53bと、有機EL層54と、駆動回路層55と、反射電極56と、液晶層57と、カラーフィルター層57aとを備えている。
FIG. 3A is a schematic cross-sectional view showing a display unit 50 including an organic EL element and a reflective liquid crystal display device. In this example, the display unit 50 includes transparent substrates 53a and 53b, an organic EL layer 54, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, and a color filter layer 57a.
透明基板53a,53bは、光を透過する平板状部材であり、他の部材を保持できる程度の剛性を備えている。透明基板53aは、他の部材を保持することができれば不透明な材料で構成されてもよい。有機EL層54は、図示しない電極や有機EL素子構造を備えており、有機EL素子として自発光する層である。駆動回路層55は、液晶層57を駆動制御するように構成された層である。反射電極56は、駆動回路層55上に部分的に設けられており、光を反射する金属によって形成されている。液晶層57は、駆動回路層55と透明基板53bの間に液晶材料が充填された層である。液晶層57では、印加電圧に応じて液晶の配向が変化し、光の透過率が制御される。カラーフィルター層57aは、液晶層57を透過する光の波長を選択的に透過させる層であり、画素ごとにRGB各色のフィルタが設けられている。
The transparent substrates 53a and 53b are flat plate members that transmit light, and have sufficient rigidity to hold other members. The transparent substrate 53a may be made of an opaque material as long as it can hold other members. The organic EL layer 54 includes an electrode (not shown) and an organic EL element structure, and is a layer that emits light as an organic EL element. The drive circuit layer 55 is a layer configured to drive and control the liquid crystal layer 57. The reflective electrode 56 is partially provided on the drive circuit layer 55 and is formed of a metal that reflects light. The liquid crystal layer 57 is a layer in which a liquid crystal material is filled between the drive circuit layer 55 and the transparent substrate 53b. In the liquid crystal layer 57, the orientation of the liquid crystal changes according to the applied voltage, and the light transmittance is controlled. The color filter layer 57a is a layer that selectively transmits the wavelength of light transmitted through the liquid crystal layer 57, and a filter for each color of RGB is provided for each pixel.
有機EL層54から出射された光は、反射電極56が形成されていない領域を通過し、液晶層57と透明基板53bを透過して外部に出力される。このように、反射電極56が形成されていない領域は、自発光型表示部30として機能する。
The light emitted from the organic EL layer 54 passes through a region where the reflective electrode 56 is not formed, passes through the liquid crystal layer 57 and the transparent substrate 53b, and is output to the outside. As described above, the region where the reflective electrode 56 is not formed functions as the self-luminous display unit 30.
表示部50の外部から照射された光は、透明基板53bと液晶層57を透過した後に、反射電極56によって反射され、再び液晶層57と透明基板53bを透過して外部に出力される。このように、反射電極56が形成された領域が反射型表示部40として機能する。
The light irradiated from the outside of the display unit 50 is transmitted through the transparent substrate 53b and the liquid crystal layer 57, then reflected by the reflective electrode 56, and again transmitted through the liquid crystal layer 57 and the transparent substrate 53b and output to the outside. Thus, the region where the reflective electrode 56 is formed functions as the reflective display unit 40.
図3の(b)は、反射型液晶表示装置とバックライトからなる表示部50を示す模式断面図である。本例では、表示部50は、透明基板53bと、駆動回路層55と、反射電極56と、液晶層57と、カラーフィルター層57aと、バックライト58を備えている。
FIG. 3B is a schematic cross-sectional view showing the display unit 50 including a reflective liquid crystal display device and a backlight. In this example, the display unit 50 includes a transparent substrate 53b, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, a color filter layer 57a, and a backlight 58.
バックライト58から出射された光は、反射電極56が形成されていない領域を通過し、液晶層57と透明基板53bを透過して外部に出力される。このように、反射電極56が形成されていない領域は、自発光型表示部30として機能する。反射型表示部40の機能は、上記した内容と同様である。
The light emitted from the backlight 58 passes through the region where the reflective electrode 56 is not formed, passes through the liquid crystal layer 57 and the transparent substrate 53b, and is output to the outside. As described above, the region where the reflective electrode 56 is not formed functions as the self-luminous display unit 30. The function of the reflective display unit 40 is the same as that described above.
図3の(c)は、反射型液晶表示装置と外部ライトからなる表示部50を示す模式断面図である。本例では、表示部50は、透明基板53bと、駆動回路層55と、反射電極56と、液晶層57と、カラーフィルター層57aと、外部ライト59を備えている。
FIG. 3C is a schematic cross-sectional view showing the display unit 50 including a reflective liquid crystal display device and an external light. In this example, the display unit 50 includes a transparent substrate 53b, a drive circuit layer 55, a reflective electrode 56, a liquid crystal layer 57, a color filter layer 57a, and an external light 59.
外部ライト59から出射された光は、透明基板53bと液晶層57を透過した後に、反射電極56によって反射され、再び液晶層57と透明基板53bを透過して外部に出力される。このように、外部ライト59が点灯している場合には、反射電極56が形成された領域が反射型表示部40として機能する。反射型表示部40の機能は、上記した内容と同様である。
The light emitted from the external light 59 is transmitted through the transparent substrate 53b and the liquid crystal layer 57, then reflected by the reflective electrode 56, and again transmitted through the liquid crystal layer 57 and the transparent substrate 53b to be output to the outside. As described above, when the external light 59 is lit, the region where the reflective electrode 56 is formed functions as the reflective display unit 40. The function of the reflective display unit 40 is the same as that described above.
図4は、情報取得部20としてセンサ21を備えた車両用ディスプレー装置100を示すブロック図である。図5は、第1実施形態における車両用ディスプレー装置100の概略を示す模式平面図である。図4,5に示すように、車両用ディスプレー装置100では、自発光型表示部30と反射型表示部40で構成される表示部50の周囲に、情報取得部20としてセンサ21が設けられている。
FIG. 4 is a block diagram showing a vehicle display device 100 including a sensor 21 as the information acquisition unit 20. FIG. 5 is a schematic plan view showing an outline of the vehicle display device 100 according to the first embodiment. As shown in FIGS. 4 and 5, in the vehicle display device 100, a sensor 21 is provided as an information acquisition unit 20 around a display unit 50 including a self-luminous display unit 30 and a reflective display unit 40. Yes.
センサ21は、表示部50の周囲に配置されており、外部環境の情報を取得するように構成されている。センサ21は、例えば、輝度センサ、温度センサ、GPS(Global Positioning System)センサのうち少なくとも一つを含む。センサ21は、制御部10と通信可能に接続されており、測定した外部の環境情報を制御部10に送信する。制御部10は、送信された環境情報に基づいて、自発光型表示部30の表示と反射型表示部40の表示を切り替える。図5に示す例では、センサ21は、表示部50とは別体として表示部50の周囲に配置されているが、自発光型表示部30に含まれる画素が外光センサとして使用されてもよく、表示部50の表示領域内にセンサ21が配置されてもよい。
The sensor 21 is arranged around the display unit 50 and is configured to acquire information on the external environment. The sensor 21 includes, for example, at least one of a luminance sensor, a temperature sensor, and a GPS (Global Positioning System) sensor. The sensor 21 is communicably connected to the control unit 10 and transmits the measured external environment information to the control unit 10. The control unit 10 switches between the display of the self-luminous display unit 30 and the display of the reflection type display unit 40 based on the transmitted environment information. In the example shown in FIG. 5, the sensor 21 is arranged around the display unit 50 as a separate body from the display unit 50, but pixels included in the self-luminous display unit 30 may be used as an external light sensor. The sensor 21 may be arranged in the display area of the display unit 50.
図6は、車両用ディスプレー装置100の駆動方法を示すフローチャートである。車両用ディスプレー装置100では、制御部10のプロセッサが、制御部10のRAM等のメモリに読み込まれた表示制御プログラム(コンピュータ可読命令)を実行することで、車両用ディスプレー装置100の駆動制御を実行する。
FIG. 6 is a flowchart showing a method for driving the vehicle display device 100. In the vehicle display device 100, the processor of the control unit 10 executes a display control program (computer-readable command) read into a memory such as a RAM of the control unit 10, thereby executing drive control of the vehicle display device 100. To do.
図6に示すように、ステップS1では、制御部10は、情報取得部20から車両外部の環境情報を取得する。このステップでは、制御部10は、情報取得部20を制御して環境情報を取得してもよい。また、情報取得部20は、定期的または不定期に環境情報を取得した上で、当該取得された環境情報を制御部10に送信してもよい。制御部10が環境情報を取得した後には、本処理はステップS2に移行する。
As shown in FIG. 6, in step S <b> 1, the control unit 10 acquires environmental information outside the vehicle from the information acquisition unit 20. In this step, the control unit 10 may acquire the environment information by controlling the information acquisition unit 20. In addition, the information acquisition unit 20 may acquire the environmental information periodically or irregularly and then transmit the acquired environmental information to the control unit 10. After the control unit 10 acquires the environment information, the process proceeds to step S2.
ステップS2では、制御部10は、取得された環境情報に基づいて、自発光型表示部30による画像表示と反射型表示部40による画像表示のどちらを採用するべきかを判定する。本ステップでは、制御部10は、制御部10のメモリ等に予め記録された判定条件と環境情報との比較に応じて、自発光型表示部30による画像表示を採用するべきであると判定した場合には、本処理は、ステップS3に移行する。一方で、制御部10は、制御部10のメモリ等に予め記録された判定条件と環境情報との比較に応じて、反射型表示部40による画像表示を採用するべきであると判定した場合には、本処理はステップS4に移行する。例えば、環境情報が車両の外部から表示部50の表示面に照射される外光の輝度を示す場合について検討する。この場合、制御部10は、外光の輝度が予め定められた所定値以上であると判定した場合には、日中であると判断した上で、自発光型表示部30による画像表示を採用するべきであると判定する(自発光判定)。一方、制御部10は、外光の輝度が所定値未満であると判定した場合には、夜間であると判断した上で、反射型表示部40による画像表示を採用するべきであると判定する(反射判定)。
In step S2, the control unit 10 determines which of the image display by the self-luminous display unit 30 and the image display by the reflection display unit 40 should be adopted based on the acquired environment information. In this step, the control unit 10 determines that the image display by the self-luminous display unit 30 should be adopted according to the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. In this case, the process proceeds to step S3. On the other hand, when the control unit 10 determines that the image display by the reflective display unit 40 should be adopted according to the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. The process proceeds to step S4. For example, consider a case where the environmental information indicates the brightness of external light that is emitted from the outside of the vehicle to the display surface of the display unit 50. In this case, when the control unit 10 determines that the brightness of the external light is equal to or higher than a predetermined value, the control unit 10 determines that the daylight is in the daytime, and then employs the image display by the self-luminous display unit 30. It is determined that it should be performed (self-emission determination). On the other hand, when it is determined that the brightness of the external light is less than the predetermined value, the control unit 10 determines that it is nighttime and determines that the image display by the reflective display unit 40 should be adopted. (Reflection judgment).
ステップS3では、制御部10は、自発光型表示部30を用いて画像表示を行う。このとき、制御部10は、環境情報に基づいて、自発光型表示部30による画像表示の輝度を制御してもよい。例えば、環境情報が車両の外部から表示部50の表示面に照射される外光の輝度を示す場合には、制御部10は、外光の輝度の増加に応じて自発光型表示部30での発光を強くすることで高輝度の画像表示を行うとしてもよい。自発光型表示部30を用いた自発光描画の輝度は、例えば、300cd/m2程度である。自発光型表示部30を用いた自発光描画の輝度は、車両に係る法規を満たす観点より、標識灯よりも低い輝度であることが好ましい。制御部10が自発光型表示部30による画像表示を実行した後に、本処理は再度ステップS1に移行する。
In step S <b> 3, the control unit 10 performs image display using the self-luminous display unit 30. At this time, the control unit 10 may control the luminance of image display by the self-luminous display unit 30 based on the environment information. For example, when the environmental information indicates the brightness of the external light irradiated on the display surface of the display unit 50 from the outside of the vehicle, the control unit 10 uses the self-luminous display unit 30 according to the increase in the brightness of the external light. It is also possible to display an image with high brightness by increasing the light emission. The brightness of the self-luminous drawing using the self-luminous display unit 30 is, for example, about 300 cd / m 2 . The luminance of the self-luminous drawing using the self-luminous display unit 30 is preferably lower than that of the marker lamp from the viewpoint of satisfying the regulations relating to the vehicle. After the control unit 10 executes image display by the self-luminous display unit 30, the process proceeds to step S1 again.
ステップS4では、制御部10は、反射型表示部40を用いて画像表示を行う。制御部10は、反射型表示部40による画像表示を実行した後に、本処理は再度ステップS1に移行する。
In step S4, the control unit 10 displays an image using the reflective display unit 40. After executing the image display by the reflection type display unit 40, the control unit 10 proceeds to step S1 again.
図7は、第1実施形態における切替制御の境界を示すグラフである。図7の(a)は、表面輝度と自発光型表示部30の輝度の関係を示す。図7の(b)は、雰囲気温度と自発光型表示部30の輝度の関係を示す。本実施形態では、センサ21として輝度センサと温度センサが使用される。輝度センサは、環境情報として表示部50の表示面に照射される外光の輝度(表面輝度)を測定するように構成される。温度センサは、表示部50の周囲の温度を示す雰囲気温度を測定するように構成される。
FIG. 7 is a graph showing the boundary of the switching control in the first embodiment. FIG. 7A shows the relationship between the surface brightness and the brightness of the self-luminous display unit 30. FIG. 7B shows the relationship between the ambient temperature and the luminance of the self-luminous display unit 30. In the present embodiment, a brightness sensor and a temperature sensor are used as the sensor 21. The luminance sensor is configured to measure the luminance (surface luminance) of external light irradiated on the display surface of the display unit 50 as environmental information. The temperature sensor is configured to measure an ambient temperature indicating a temperature around the display unit 50.
図7の(a)では、縦軸が自発光型表示部30の輝度を示すとともに、横軸が表面輝度を示す。表面輝度が予め定められた所定値よりも低い領域は自発光型領域として規定される。制御部10は、自発光型領域では、自発光型表示部30の輝度を一定として自発光型表示部30による画像表示を行う。表面輝度が所定値以上の領域は反射型領域として規定される。制御部10は、反射型領域では、自発光型表示部30の輝度値を0に設定した上で反射型表示部40による画像表示を行う。
7 (a), the vertical axis represents the luminance of the self-luminous display unit 30, and the horizontal axis represents the surface luminance. An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area. In the self-luminous region, the control unit 10 performs image display by the self-luminous display unit 30 while keeping the luminance of the self-luminous display unit 30 constant. A region where the surface luminance is a predetermined value or more is defined as a reflective region. In the reflective area, the control unit 10 sets the luminance value of the self-luminous display unit 30 to 0 and performs image display by the reflective display unit 40.
図7の(b)では、縦軸が自発光型表示部30の輝度を示すとともに、横軸が表示部50の雰囲気温度を示す。図7の(b)に示すように、制御部10は、雰囲気温度に依らず図7の(a)で求められた輝度で自発光型表示部30による画像表示を行う。
7 (b), the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the ambient temperature of the display unit 50. As shown in FIG. 7B, the control unit 10 performs image display by the self-luminous display unit 30 with the brightness obtained in FIG. 7A regardless of the ambient temperature.
制御部10は、図6のステップS2において、図7の(a)及び(b)に示された判定基準と環境情報との比較に応じて、車両用ディスプレー装置100が自発光型領域又は反射型領域に属するのかを判定する。制御部10は、車両用ディスプレー装置100が自発光型領域に属すると判定した場合には、自発光型表示部30を用いて画像表示を行う。このとき、自発光型表示部30の光源から外部に照射される光の輝度は、図7の(a)に示したように一定であってもよく、若しくは表面輝度に応じて変化してもよい。
In step S <b> 2 of FIG. 6, the control unit 10 determines whether the vehicle display device 100 is a self-luminous region or a reflection according to the comparison between the determination criteria shown in FIGS. 7A and 7B and the environment information. Determine if it belongs to the mold area. When the control unit 10 determines that the vehicle display device 100 belongs to the self-luminous region, the control unit 10 displays an image using the self-luminous display unit 30. At this time, the luminance of the light emitted from the light source of the self-luminous display unit 30 to the outside may be constant as shown in FIG. 7A, or may vary depending on the surface luminance. Good.
上述したステップS1~S4のステップが繰り返し実行される。このように、車両用ディスプレー装置100は、現在の環境情報に基づいて、自発光型表示部30による自発光描画と、反射型表示部40による反射描画を切り替えることができる。これにより、日中の明るい環境では、反射型表示部40による画面表示を採用することで車両用ディスプレー装置100の電力消費を抑制することができる。一方、夜間の暗い環境では自発光型表示部30による画面表示を採用することで車両の外部に存在する歩行者や他車両からの車両用ディスプレー装置100の視認性を確保しつつ、車両用ディスプレー装置100の消費電力を低減することが可能となる。
The above steps S1 to S4 are repeatedly executed. In this way, the vehicle display device 100 can switch between self-emission drawing by the self-emission type display unit 30 and reflection drawing by the reflection type display unit 40 based on the current environment information. Thereby, in the bright environment of the daytime, the power consumption of the display apparatus 100 for vehicles can be suppressed by employ | adopting the screen display by the reflection type display part 40. FIG. On the other hand, in a dark environment at night, a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100.
(第2実施形態)
次に、第2実施形態について図8を用いて説明する。第2実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図8は、第2実施形態における切替制御の境界を示すグラフである。特に、図8の(a)は、表面輝度と自発光型表示部30の輝度の関係を示す。図8の(b)は、雰囲気温度と自発光型表示部30の輝度の関係を示す。本実施形態でも同様に、センサ21として輝度センサと温度センサが使用される。輝度センサは、環境情報として表示部50の表示面に照射される外光の輝度を測定するように構成される。温度センサは、表示部50の周囲における温度を示す雰囲気温度を測定するように構成される。 (Second Embodiment)
Next, a second embodiment will be described with reference to FIG. In the description of the second embodiment, the description overlapping with the first embodiment is omitted. FIG. 8 is a graph showing the boundary of the switching control in the second embodiment. In particular, FIG. 8A shows the relationship between the surface luminance and the luminance of the self-luminous display unit 30. FIG. 8B shows the relationship between the ambient temperature and the luminance of the self-luminous display unit 30. Similarly, in the present embodiment, a luminance sensor and a temperature sensor are used as the sensor 21. The luminance sensor is configured to measure the luminance of external light irradiated on the display surface of the display unit 50 as environmental information. The temperature sensor is configured to measure an ambient temperature indicating a temperature around the display unit 50.
次に、第2実施形態について図8を用いて説明する。第2実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図8は、第2実施形態における切替制御の境界を示すグラフである。特に、図8の(a)は、表面輝度と自発光型表示部30の輝度の関係を示す。図8の(b)は、雰囲気温度と自発光型表示部30の輝度の関係を示す。本実施形態でも同様に、センサ21として輝度センサと温度センサが使用される。輝度センサは、環境情報として表示部50の表示面に照射される外光の輝度を測定するように構成される。温度センサは、表示部50の周囲における温度を示す雰囲気温度を測定するように構成される。 (Second Embodiment)
Next, a second embodiment will be described with reference to FIG. In the description of the second embodiment, the description overlapping with the first embodiment is omitted. FIG. 8 is a graph showing the boundary of the switching control in the second embodiment. In particular, FIG. 8A shows the relationship between the surface luminance and the luminance of the self-
図8の(a)は、縦軸が自発光型表示部30の輝度を示すとともに、横軸が表面輝度を示す。表面輝度が予め定められた所定値よりも低い領域は自発光型領域として規定される。制御部10は、自発光型領域では、自発光型表示部30を用いて画像表示を行う。このとき、表面輝度が第1の表面輝度値以下である場合には、自発光型表示部30の輝度値が一定となる。一方、表面輝度が第1の表面輝度値から第2の表面輝度値の範囲内である場合には、自発光型表示部30の輝度値を減少させる。第2の表面輝度値以上の領域は反射型領域として規定される。反射型領域では、制御部10は、自発光型表示部30の輝度値を0に設定した上で反射型表示部40での画像表示を行う。
8 (a), the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the surface luminance. An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area. The control unit 10 performs image display using the self-luminous display unit 30 in the self-luminous region. At this time, when the surface luminance is equal to or lower than the first surface luminance value, the luminance value of the self-luminous display unit 30 is constant. On the other hand, when the surface luminance is within the range of the first surface luminance value to the second surface luminance value, the luminance value of the self-luminous display unit 30 is decreased. An area that is equal to or greater than the second surface luminance value is defined as a reflective area. In the reflection type region, the control unit 10 sets the luminance value of the self-luminous display unit 30 to 0 and performs image display on the reflection type display unit 40.
図8の(b)では、縦軸が自発光型表示部30の輝度を示すとともに、横軸が表示部50の雰囲気温度を示す。図8の(b)に示すように、制御部10は、雰囲気温度が所定値以下である場合には、図8の(a)で求められた輝度で自発光型表示部30による画像表示を行う。一方、制御部10は、雰囲気温度が所定の雰囲気温度より大きい場合では、図8の(a)で求められた輝度値に係数を乗じることで自発光型表示部30の輝度を減少させる。
8 (b), the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the ambient temperature of the display unit 50. As shown in FIG. 8B, when the ambient temperature is equal to or lower than a predetermined value, the control unit 10 displays an image by the self-luminous display unit 30 with the brightness obtained in FIG. Do. On the other hand, when the atmospheric temperature is higher than the predetermined atmospheric temperature, the control unit 10 reduces the luminance of the self-luminous display unit 30 by multiplying the luminance value obtained in (a) of FIG. 8 by a coefficient.
制御部10は、図6のステップS2において、図8の(a)及び(b)に示された判定基準と環境情報との比較に応じて、車両用ディスプレー装置100の環境が自発光型領域又は反射型領域に属するのかを判定する。制御部10は、車両用ディスプレー装置100が自発光型領域に属すると判定した場合には、自発光型表示部30を用いて画像表示を行う。一方、図8の(a)で示すように表面輝度が第2の表面輝度値を超えた場合と、図8の(b)で示すように雰囲気温度が高くなることで自発光型表示部30の輝度値が0になる場合には、制御部10は、反射型表示部40を用いて画像表示を行う。
In step S2 of FIG. 6, the control unit 10 determines that the environment of the vehicle display device 100 is a self-luminous region according to the comparison between the determination criteria shown in FIGS. 8A and 8B and the environmental information. Alternatively, it is determined whether it belongs to the reflection type region. When the control unit 10 determines that the vehicle display device 100 belongs to the self-luminous region, the control unit 10 displays an image using the self-luminous display unit 30. On the other hand, when the surface luminance exceeds the second surface luminance value as shown in FIG. 8A and when the ambient temperature becomes high as shown in FIG. In the case where the luminance value becomes 0, the control unit 10 performs image display using the reflective display unit 40.
本実施形態においても同様に、日中の明るい環境では、反射型表示部40による画面表示を採用することで車両用ディスプレー装置100の電力消費を抑制することができる。一方、夜間の暗い環境では自発光型表示部30による画面表示を採用することで車両の外部に存在する歩行者や他車両からの車両用ディスプレー装置100の視認性を確保しつつ、車両用ディスプレー装置100の消費電力を低減することが可能となる。また、車両用ディスプレー装置100の雰囲気温度が高い場合には、自発光型表示部30での表示輝度の上限が低くなるため、高温環境下において大電流により自発光型表示部30が駆動されることを防止される。このように、表示部50の劣化を防止することができる。
Similarly, in the present embodiment, the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40 in a bright daytime environment. On the other hand, in a dark environment at night, a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100. In addition, when the ambient temperature of the vehicle display device 100 is high, the upper limit of the display luminance on the self-luminous display unit 30 is low, so that the self-luminous display unit 30 is driven by a large current in a high temperature environment. To be prevented. In this way, it is possible to prevent the display unit 50 from being deteriorated.
(第3実施形態)
次に、第3実施形態について図9を用いて説明する。第3実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。本実施形態では、表示部50で表示される画像の一部が標識灯として利用される。また、制御部10は、情報取得部20によって取得された環境情報に応じて、自発光型表示部30における標識灯部分の面積と輝度を変化させる。表示部50の表示領域のうち標識灯として利用されない領域では、第1実施形態または第2実施形態と同様な表示制御が適用される。 (Third embodiment)
Next, a third embodiment will be described with reference to FIG. In the description of the third embodiment, the description overlapping with that of the first embodiment is omitted. In the present embodiment, a part of the image displayed on thedisplay unit 50 is used as a marker lamp. In addition, the control unit 10 changes the area and luminance of the marker lamp portion in the self-luminous display unit 30 according to the environmental information acquired by the information acquisition unit 20. In the display area of the display unit 50 that is not used as a marker lamp, display control similar to that in the first embodiment or the second embodiment is applied.
次に、第3実施形態について図9を用いて説明する。第3実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。本実施形態では、表示部50で表示される画像の一部が標識灯として利用される。また、制御部10は、情報取得部20によって取得された環境情報に応じて、自発光型表示部30における標識灯部分の面積と輝度を変化させる。表示部50の表示領域のうち標識灯として利用されない領域では、第1実施形態または第2実施形態と同様な表示制御が適用される。 (Third embodiment)
Next, a third embodiment will be described with reference to FIG. In the description of the third embodiment, the description overlapping with that of the first embodiment is omitted. In the present embodiment, a part of the image displayed on the
図9は、第3実施形態における自発光型表示部30の制御を示すグラフである。特に、図9の(a)は、表面輝度と自発光型表示部30の輝度の関係を示す。図9の(b)は、雰囲気温度と標識灯部分の輝度の関係を示す。図9の(c)は、雰囲気温度と標識灯部分の面積の関係を示す。図9の(d)は、雰囲気温度と標識灯部分の光度値の関係を示す。本実施形態でも同様に、センサ21として輝度センサと温度センサが使用される。輝度センサは、環境情報として表示部50の表示面に照射される外光の輝度を測定するように構成される。温度センサは、表示部50の周囲における雰囲気温度を測定するように構成される。
FIG. 9 is a graph showing control of the self-luminous display unit 30 in the third embodiment. In particular, FIG. 9A shows the relationship between the surface luminance and the luminance of the self-luminous display unit 30. FIG. 9B shows the relationship between the ambient temperature and the luminance of the marker lamp portion. FIG. 9C shows the relationship between the ambient temperature and the area of the marker lamp. (D) of FIG. 9 shows the relationship between atmospheric temperature and the luminous intensity value of a marker lamp part. Similarly, in the present embodiment, a luminance sensor and a temperature sensor are used as the sensor 21. The luminance sensor is configured to measure the luminance of external light irradiated on the display surface of the display unit 50 as environmental information. The temperature sensor is configured to measure the ambient temperature around the display unit 50.
図9の(a)は、縦軸が自発光型表示部30の輝度を示すとともに、横軸が表面輝度を示す。表面輝度が予め定められた所定値よりも低い領域は自発光型領域として規定される。制御部10は、自発光型領域において、自発光型表示部30の輝度を一定として画像表示を行う。表面輝度が所定値以上の領域は反射型領域として規定される。制御部10は、反射型領域において、自発光型表示部30の輝度値を0に設定した上で反射型表示部40での画像表示を行う。
9A, the vertical axis indicates the luminance of the self-luminous display unit 30, and the horizontal axis indicates the surface luminance. An area where the surface brightness is lower than a predetermined value is defined as a self-luminous area. The control unit 10 displays an image with the luminance of the self-luminous display unit 30 constant in the self-luminous region. A region where the surface luminance is a predetermined value or more is defined as a reflective region. The control unit 10 displays an image on the reflection type display unit 40 after setting the luminance value of the self-luminous display unit 30 to 0 in the reflection type region.
図9の(b)は、縦軸が標識灯部分の自発光型表示部30の輝度を示すとともに、横軸が表示部50の雰囲気温度を示す。図9の(b)に示すように、雰囲気温度が所定の雰囲気温度以下の場合には、標識灯部分である自発光型表示部30の輝度値が一定となる。一方、雰囲気温度が所定の雰囲気温度を超える場合では、標識灯部分である自発光型表示部30の輝度値を減少させる。
9 (b), the vertical axis indicates the luminance of the self-luminous display unit 30 in the marker lamp portion, and the horizontal axis indicates the ambient temperature of the display unit 50. As shown in FIG. 9B, when the ambient temperature is equal to or lower than the predetermined ambient temperature, the luminance value of the self-luminous display unit 30 that is the marker lamp portion is constant. On the other hand, when the ambient temperature exceeds a predetermined ambient temperature, the luminance value of the self-luminous display unit 30 that is the marker lamp portion is decreased.
図9の(c)では、縦軸が標識灯部分の自発光型表示部30の面積を示すとともに、横軸が表示部50の雰囲気温度を示す。図9の(c)に示すように、雰囲気温度が所定の雰囲気温度以下の場合では、標識灯部分である自発光型表示部30の表示面積を一定となる。一方、雰囲気温度が所定の雰囲気温度を超える場合では、標識灯部分の面積を増加させる。
9 (c), the vertical axis represents the area of the self-luminous display unit 30 in the marker lamp portion, and the horizontal axis represents the ambient temperature of the display unit 50. As shown in FIG. 9C, when the ambient temperature is equal to or lower than the predetermined ambient temperature, the display area of the self-luminous display unit 30 that is the marker lamp portion is constant. On the other hand, when the ambient temperature exceeds a predetermined ambient temperature, the area of the marker lamp portion is increased.
図9の(d)では、縦軸が標識灯部分の自発光型表示部30の光度値を示すとともに、横軸が表示部50の雰囲気温度を示す。自発光型表示部30における標識灯部分の光度値は、輝度と面積を乗じた値であるので、雰囲気温度に依らず光度値を一定とすることができる。このとき、標識灯部分の光度値が法規要件を満たすように設定される。
9 (d), the vertical axis indicates the luminous intensity value of the self-luminous display unit 30 in the marker lamp portion, and the horizontal axis indicates the ambient temperature of the display unit 50. Since the luminous intensity value of the marker lamp portion in the self-luminous display unit 30 is a value obtained by multiplying the luminance and the area, the luminous intensity value can be made constant regardless of the ambient temperature. At this time, the light intensity value of the marker lamp portion is set so as to satisfy the legal requirement.
制御部10は、図6に示すステップS3において、図9の(a)~(d)に示した判定基準と環境情報との比較に応じて、自発光型表示部30における標識灯部分が占める面積と輝度を変化させる。表面輝度が高い場合には、輝度を一定にして標識灯部分の面積を拡大することで、法規要件である光度を満足させるとともに、日中の太陽光下においても視認性を確保する。また、輝度を一定にしたまま光度を確保できるため、自発光型表示部30の単位面積あたり消費電力が増大せず、表示部50の劣化を防止される。このように、車両用ディスプレー装置100の耐久性を向上させると共に、車両用ディスプレー装置100の長寿命化を図ることが可能となる。
In step S3 shown in FIG. 6, the control unit 10 occupies the marker lamp portion in the self-luminous display unit 30 in accordance with the comparison between the determination criteria shown in FIGS. 9A to 9D and the environmental information. Change the area and brightness. When the surface luminance is high, the luminance is kept constant and the area of the indicator lamp portion is expanded to satisfy the luminous intensity as a legal requirement, and visibility is ensured even in daylight. Further, since the luminous intensity can be ensured with the luminance kept constant, the power consumption per unit area of the self-luminous display unit 30 does not increase, and the display unit 50 is prevented from being deteriorated. As described above, the durability of the vehicle display device 100 can be improved and the life of the vehicle display device 100 can be extended.
雰囲気温度が高い場合には、標識灯部分の面積を拡大するとともに、自発光型表示部30の輝度を下げて法規要件である光度を満足させる。このように、表示部50の劣化を防止されるので、車両用ディスプレー装置100の耐久性を向上させると共に、車両用ディスプレー装置100の長寿命化を図ることが可能となる。
When the ambient temperature is high, the area of the marker lamp is enlarged, and the brightness of the self-luminous display unit 30 is lowered to satisfy the luminosity that is a legal requirement. Thus, since the deterioration of the display unit 50 is prevented, the durability of the vehicle display device 100 can be improved and the life of the vehicle display device 100 can be extended.
本実施形態でも同様に、日中の明るい環境では、反射型表示部40による画面表示を採用することで車両用ディスプレー装置100の電力消費を抑制することができる。一方、夜間の暗い環境では自発光型表示部30による画面表示を採用することで車両の外部に存在する歩行者や他車両からの車両用ディスプレー装置100の視認性を確保しつつ、車両用ディスプレー装置100の消費電力を低減することが可能となる。また、表示部50の一部が標識灯として利用されると共に、標識灯部分の面積と輝度が環境情報に基づいて制御される。このように、標識灯部分に関連する法規要件を満たすように車両用ディスプレー装置100の視認性を確保しながら、車両用ディスプレー装置100の消費電力の抑制と長寿命化を図ることができる。
Similarly, in the present embodiment, in a bright daytime environment, the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40. On the other hand, in a dark environment at night, a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100. In addition, a part of the display unit 50 is used as a marker lamp, and the area and luminance of the marker lamp part are controlled based on environmental information. As described above, the power consumption of the vehicle display device 100 can be reduced and the life of the vehicle display device 100 can be reduced while ensuring the visibility of the vehicle display device 100 so as to satisfy the legal requirements related to the marker lamp portion.
(第4実施形態)
次に、第4実施形態について図10を参照して説明する。第4実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図10は、第4実施形態における車両用ディスプレー装置110の構成を示すブロック図である。本実施形態でも第1実施形態と同様に、車両用ディスプレー装置110は、制御部10と、通信部22と、表示部50を備えている。 (Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIG. In the description of the fourth embodiment, the description overlapping with the first embodiment is omitted. FIG. 10 is a block diagram illustrating a configuration of thevehicle display device 110 according to the fourth embodiment. Also in the present embodiment, as in the first embodiment, the vehicle display device 110 includes the control unit 10, the communication unit 22, and the display unit 50.
次に、第4実施形態について図10を参照して説明する。第4実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図10は、第4実施形態における車両用ディスプレー装置110の構成を示すブロック図である。本実施形態でも第1実施形態と同様に、車両用ディスプレー装置110は、制御部10と、通信部22と、表示部50を備えている。 (Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIG. In the description of the fourth embodiment, the description overlapping with the first embodiment is omitted. FIG. 10 is a block diagram illustrating a configuration of the
通信部22(情報取得部の一例)は、車両用ディスプレー装置110の内部に搭載され、外部と無線又は有線により通信を行うように構成されている。通信部22は、車両外部の環境情報を取得した上で、当該環境情報を制御部10に無線又は有線により送信する。通信部22の一例は、送受信回路とアンテナとを有する無線通信モジュールである。例えば、車両に搭載された外光センサや時計、GPS装置、車両の運転を制御するコンピュータ等が環境情報を通信部22に送信する。
The communication unit 22 (an example of an information acquisition unit) is mounted inside the vehicle display device 110 and configured to communicate with the outside wirelessly or by wire. The communication unit 22 acquires environmental information outside the vehicle and then transmits the environmental information to the control unit 10 wirelessly or by wire. An example of the communication unit 22 is a wireless communication module having a transmission / reception circuit and an antenna. For example, an ambient light sensor, a clock, a GPS device, a computer that controls driving of the vehicle, or the like mounted on the vehicle transmits environmental information to the communication unit 22.
本実施形態でも同様に、車両用ディスプレー装置100では、制御部10のプロセッサが、制御部10のRAM等のメモリに読み込まれた表示制御プログラム(コンピュータ可読命令)を実行することで、図6に示す処理を実行する。本実施形態では、ステップS1において、情報取得部20に代わって通信部22が、環境情報を取得した上で、当該取得された環境情報を制御部10に送信する。制御部10が環境情報を取得した後、本処理はステップS2に移行する。
Similarly in the present embodiment, in the vehicular display device 100, the processor of the control unit 10 executes a display control program (computer readable instruction) read into a memory such as a RAM of the control unit 10 as shown in FIG. The process shown is executed. In the present embodiment, in step S <b> 1, the communication unit 22 acquires the environment information instead of the information acquisition unit 20, and transmits the acquired environment information to the control unit 10. After the control unit 10 acquires the environment information, the process proceeds to step S2.
本実施形態でも同様に、日中の明るい環境では、反射型表示部40による画面表示を採用することで車両用ディスプレー装置100の電力消費を抑制することができる。一方、夜間の暗い環境では自発光型表示部30による画面表示を採用することで車両の外部に存在する歩行者や他車両からの車両用ディスプレー装置100の視認性を確保しつつ、車両用ディスプレー装置100の消費電力を低減することが可能となる。また、環境情報を測定する手段(センサ等)は、車両用ディスプレー装置110の外部に設けられている。さらに、制御部10は、通信部22を介して環境情報を取得する。このように、車両用ディスプレー装置110の部品点数を削減することができるので、車両用ディスプレー装置100の軽量化および薄型化を図ることができる。
Similarly, in the present embodiment, in a bright daytime environment, the power consumption of the vehicle display device 100 can be suppressed by adopting the screen display by the reflective display unit 40. On the other hand, in a dark environment at night, a screen display by the self-luminous display unit 30 is adopted to ensure visibility of the vehicle display device 100 from pedestrians and other vehicles existing outside the vehicle, and to display the vehicle. It becomes possible to reduce the power consumption of the apparatus 100. In addition, a means (sensor or the like) for measuring environmental information is provided outside the vehicle display device 110. Further, the control unit 10 acquires environment information via the communication unit 22. Thus, since the number of parts of the vehicle display device 110 can be reduced, the vehicle display device 100 can be reduced in weight and thickness.
(第5実施形態)
次に、第5実施形態について図11を参照して説明する。第5実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図11は、本実施形態における車両用ディスプレー装置100の駆動方法を示すフローチャートである。本実施形態では、制御部10が自発光型表示部30による画像表示を採用するべきであると判定した場合でも、自発光型表示部30と反射型表示部40の両方を用いて画像表示を行う。 (Fifth embodiment)
Next, a fifth embodiment will be described with reference to FIG. In the description of the fifth embodiment, the description overlapping with the first embodiment is omitted. FIG. 11 is a flowchart showing a driving method of thevehicle display device 100 according to this embodiment. In the present embodiment, even when the control unit 10 determines that image display by the self-luminous display unit 30 should be adopted, image display is performed using both the self-luminous display unit 30 and the reflective display unit 40. Do.
次に、第5実施形態について図11を参照して説明する。第5実施形態の説明では、第1実施形態と重複する内容についてはその説明を省略する。図11は、本実施形態における車両用ディスプレー装置100の駆動方法を示すフローチャートである。本実施形態では、制御部10が自発光型表示部30による画像表示を採用するべきであると判定した場合でも、自発光型表示部30と反射型表示部40の両方を用いて画像表示を行う。 (Fifth embodiment)
Next, a fifth embodiment will be described with reference to FIG. In the description of the fifth embodiment, the description overlapping with the first embodiment is omitted. FIG. 11 is a flowchart showing a driving method of the
ステップS11において、制御部10は、情報取得部20から車両外部の環境を示す環境情報を取得する。制御部10が環境情報を取得した後には、本処理はステップS12に移行する。
In step S11, the control unit 10 acquires environmental information indicating the environment outside the vehicle from the information acquisition unit 20. After the control unit 10 acquires the environment information, the process proceeds to step S12.
ステップS12では、制御部10は、取得された環境情報に基づいて、自発光型表示部30と反射型表示部40の両方による画像表示と反射型表示部40のみによる画像表示のどちらを採用するべきかを判定する。本ステップでは、制御部10は、制御部10のメモリ等に予め記録された判定条件と環境情報との比較に応じて、自発光型表示部30と反射型表示部40の両方による画像表示を採用するべきであると判定した場合には、本処理は、ステップS13に移行する。一方で、制御部10は、制御部10のメモリ等に予め記録された判定条件と環境情報との比較に応じて、反射型表示部40のみによる画像表示を採用すべきであると判定した場合には、本処理は、ステップS14に移行する。
In step S12, the control unit 10 employs either an image display by both the self-luminous display unit 30 and the reflective display unit 40 or an image display by only the reflective display unit 40 based on the acquired environment information. Determine what should be done. In this step, the control unit 10 displays an image on both the self-luminous display unit 30 and the reflective display unit 40 in accordance with the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. If it is determined that it should be adopted, the process proceeds to step S13. On the other hand, when the control unit 10 determines that the image display using only the reflective display unit 40 should be adopted in accordance with the comparison between the determination condition recorded in advance in the memory of the control unit 10 and the environment information. In the present process, the process proceeds to step S14.
ステップS13では、制御部10は、反射型表示部40を用いて画像表示を行う。制御部10は、反射型表示部40による画像表示を実行した後に、本処理は、ステップS14に移行する。ステップS14では、制御部10は、自発光型表示部30を用いて画像表示を行う。制御部10は、自発光型表示部30による画像表示を実行した後に、本処理は再度ステップS1に移行する。尚、ステップS13の処理は、ステップS14の処理の後に実行されてもよい。
In step S <b> 13, the control unit 10 performs image display using the reflective display unit 40. After executing the image display by the reflection type display unit 40, the control unit 10 proceeds to step S14. In step S <b> 14, the control unit 10 performs image display using the self-luminous display unit 30. After executing the image display by the self-luminous display unit 30, the control unit 10 proceeds to step S1 again. In addition, the process of step S13 may be performed after the process of step S14.
ステップS15では、制御部10は、反射型表示部40を用いて画像表示を行う。本ステップでは、制御部10は、反射型表示部40のみによる画像表示を行ってもよいし、反射型表示部40による画像表示と自発光型表示部30による画像表示の両方を実行してもよい。制御部10は、反射型表示部40を用いた画像表示を実行した後に、本処理は再度ステップS1に移行する。
In step S15, the control unit 10 performs image display using the reflective display unit 40. In this step, the control unit 10 may perform image display using only the reflective display unit 40, or may perform both image display using the reflective display unit 40 and image display using the self-luminous display unit 30. Good. After the control unit 10 performs image display using the reflective display unit 40, the process proceeds to step S1 again.
本実施形態では、ステップS12の判定処理の結果として反射型表示部40を用いた画像表示と自発光型表示部30を用いた画像表示の両方が実行される。このため、外光が不十分であっても反射型表示部40による画像表示を補助的に利用することで、表示部50全体の光量を確保でき、自発光型表示部30での消費電力を抑制することができる。
In the present embodiment, both image display using the reflective display unit 40 and image display using the self-luminous display unit 30 are executed as a result of the determination process in step S12. For this reason, even if the outside light is insufficient, the amount of light of the entire display unit 50 can be secured by using the image display by the reflective display unit 40 in an auxiliary manner, and the power consumption in the self-luminous display unit 30 can be reduced. Can be suppressed.
(第6実施形態)
次に、本発明の第6実施形態について図12、13を用いて説明する。第1実施形態と重複する内容は説明を省略する。 (Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIGS. The description overlapping with the first embodiment is omitted.
次に、本発明の第6実施形態について図12、13を用いて説明する。第1実施形態と重複する内容は説明を省略する。 (Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIGS. The description overlapping with the first embodiment is omitted.
図12は、本実施形態における表示部50を示す模式図であり、図12の(a)は、表示部50の構成の一例を示すものであり、図12の(b)は表示部50の他の例を示すものである。
FIG. 12 is a schematic diagram showing the display unit 50 in the present embodiment. FIG. 12A shows an example of the configuration of the display unit 50, and FIG. Another example is shown.
第3実施形態等において、表示部50の一部を標識灯として利用することを説明した。ここで、停止灯や方向指示器等の標識灯は、法規要件を満たす光度を出力する必要があり、環境に関係なく安定した出力を確保するために、自発光画素51bが用いられる。また、標識灯は、後続車両にブレーキングや車幅、進行方向等を示すもので、常に特定画素の特定色だけを発光する。また、標識灯は、車両運転中に頻繁に点灯されるものである。したがって、標識灯に使用される自発光画素51bは、常に十分な光度を出力せねばならず、他の部分に比較して劣化が進みがちである。場合によっては、自発光画素51bは、経年劣化によって他の部分よりも暗くなる場合があった。
In the third embodiment and the like, it has been described that a part of the display unit 50 is used as a marker lamp. Here, it is necessary for the marker lamps such as the stop lamp and the direction indicator to output a light intensity satisfying the legal requirements, and the self-luminous pixel 51b is used to ensure a stable output regardless of the environment. Further, the marker lamp indicates braking, vehicle width, traveling direction, and the like to the following vehicle, and always emits only a specific color of a specific pixel. Further, the marker lamp is frequently lit during driving of the vehicle. Therefore, the self-luminous pixel 51b used for the marker lamp must always output a sufficient luminous intensity, and tends to deteriorate as compared with other portions. In some cases, the self-luminous pixel 51b may be darker than the other parts due to aging.
そこで、本実施形態では、表示部50のうち、常に標識灯に使う部分を標識灯部分として固定し、標識灯部分については自発光画素51aのみで構成する。表示部50のうち、標識灯以外の目的で使う部分については、自発光画素51aと反射画素51bとを組み合わせて構成し、昼間等、表示部表面付近が明るい時は反射画素51bを用い、夜間等、表示部表面付近が暗い時は自発光画素51aを用いて表示する。具体的には、次のように構成する。
Therefore, in the present embodiment, the portion of the display unit 50 that is always used for the marker lamp is fixed as the marker lamp portion, and the marker lamp portion is configured by only the self-luminous pixels 51a. Of the display unit 50, the part used for purposes other than the marker lamp is configured by combining the self-luminous pixel 51a and the reflective pixel 51b, and when the display unit surface is bright such as during the daytime, the reflective pixel 51b is used. For example, when the vicinity of the surface of the display portion is dark, the light-emitting pixels 51a are used for display. Specifically, the configuration is as follows.
図12の(a)に示すように、本実施形態では、表示部50が、標識灯専用であるストップ、テールランプ表示部61、ターンシグナル表示部62と、標識灯以外の内容を表示する一般表示部63とに分かれている。ストップ、テールランプ表示部61は、ストップランプ(停止灯)、テールランプ(車幅灯)として機能し、機能色である赤色のみを発光する。ターンシグナル表示部62に、方向指示器として機能し、機能色であるアンバー色のみを発光する。一般表示部63は、停止灯、テールランプ、方向指示器以外の目的での表示を行い、表示対象に合わせて様々な色を発光する。そして、標識灯の機能を担うストップ、テールランプ表示部61、ターンシグナル表示部62は、自発光表示部30として機能するのみであり、一般表示部63は、外光の状況に応じて、自発光表示部30と反射型表示部40とに機能が切り替わる。
As shown to (a) of FIG. 12, in this embodiment, the display part 50 displays the stop, tail lamp display part 61, the turn signal display part 62 which are only for a marker lamp, and the general display which displays contents other than a marker lamp. It is divided into a part 63. The stop / tail lamp display unit 61 functions as a stop lamp (stop lamp) and a tail lamp (vehicle width lamp), and emits only red, which is a functional color. The turn signal display unit 62 functions as a direction indicator and emits only the amber color which is a functional color. The general display unit 63 performs display for purposes other than the stop lamp, the tail lamp, and the direction indicator, and emits various colors according to the display target. The stop, the tail lamp display unit 61, and the turn signal display unit 62, which function as a marker lamp, only function as the self-luminous display unit 30, and the general display unit 63 is self-luminous depending on the situation of external light. The function is switched between the display unit 30 and the reflective display unit 40.
言い換えると、本実施形態の車両用ディスプレー装置は、自発光表示部30には、標識灯として必要な機能色のみを発光する標識灯部分であるストップ、テールランプ表示部61、ターンシグナル表示部62が含まれていることとなる。
In other words, in the vehicle display device of the present embodiment, the self-emission display unit 30 includes a stop, a tail lamp display unit 61, and a turn signal display unit 62, which are indicator light portions that emit only functional colors necessary for the indicator light. It will be included.
なお、図12の(a)は、表示部50に標識灯の機能を担う領域と一般表示を担う領域とを分けた一例を示す。また、図12の(b)で示すように、表示部50に標識灯の機能を担う領域と一般表示を担う領域とが分けられてもよい。また、他の手法により、表示部50に標識灯の機能を担う領域と一般表示を担う領域とが分けられてもよい。
In addition, (a) of FIG. 12 shows an example which divided | segmented the area | region which bears the function of a marker lamp into the display part 50, and the area | region which bears a general display. In addition, as shown in FIG. 12B, the display unit 50 may be divided into a region responsible for a marker lamp and a region responsible for general display. Moreover, the area | region which bears the function of a marker lamp, and the area | region which bears a general display may be divided into the display part 50 by another method.
一般表示部63は、先に図2の(a)、(b)で示したように、画素は、自発光画素51aと反射画素51bとによって構成されている(図3の(a)参照)。一般表示部63は、RGB3色のカラーフィルター層57を具える。色の並びについては、図13の(c)に模式的に示すように、サブピクセル単位でRGBが割り当てられ、3色がほぼ均等に配置されている。表示対象に応じてRGB3色を加法混色することにより、白色を含めた複数色を発光する。色の並びについて、図13の(c)は一例であり、3色が略均等に分散していれば他の並びであってもよい。
As shown in FIGS. 2A and 2B, the general display unit 63 is composed of self-luminous pixels 51a and reflective pixels 51b (see FIG. 3A). . The general display unit 63 includes a RGB color filter layer 57. With respect to the color arrangement, as schematically shown in FIG. 13C, RGB is assigned in units of sub-pixels, and the three colors are arranged almost equally. A plurality of colors including white are emitted by additively mixing the three RGB colors according to the display target. As for the color arrangement, FIG. 13C is an example, and other arrangements may be used as long as the three colors are substantially evenly distributed.
一方、ストップ、テールランプ表示部61、ターンシグナル表示部62の画素は、自発光画素51aのみで構成されている。したがって、その構造は、例えば、図3の(a)に示す有機EL層を具えるものから反射電極56を有しない形となっている。
On the other hand, the pixels of the stop, tail lamp display unit 61, and turn signal display unit 62 are composed of only the self-luminous pixels 51a. Therefore, the structure is such that, for example, the structure including the organic EL layer shown in FIG.
カラーフィルター層57については、ストップ、テールランプ表示部61は、常に赤色の光を発光するので、Rのみであり、色の並びについては、図13の(a)で模式的に示すように、いずれのサブピクセルもRとなる。ターンシグナル表示部62は、常にアンバー色を発光するので、カラーフィルター層57についてはRとGを具え、Bは具えない。また色の並びは、図13の(b)で模式的に示すように、RとGが交互に(市松模様に)配置されている。図13の(b)は、一例であり、行単位でRとGが配置されているものなど、他の並びであってもよい。
As for the color filter layer 57, the stop and tail lamp display unit 61 always emits red light, so only R is used, and the arrangement of colors is not limited as shown schematically in FIG. The sub-pixels of R are also R. Since the turn signal display unit 62 always emits amber color, the color filter layer 57 includes R and G, and B does not. In the color arrangement, R and G are alternately arranged (in a checkered pattern) as schematically shown in FIG. FIG. 13B is an example, and other arrangements such as those in which R and G are arranged in units of rows may be used.
なお、ストップ、テールランプ表示部61、ターンシグナル表示部62は、自発光画素51aのみであるため、上述したようにカラーフィルター層57で色分けするものに限らず、有機EL素子の発光色で色分けする形であってもよい。要するに、ストップ、テールランプ表示部61は、Rのみを発光し、赤色のみを出力する形態、ターンシグナル表示部62は、RとGを発光し、両者を混色して全体としてアンバー色のみを出力する形態であれば、様々な公知の有機EL素子による自発光型表示装置が適用可能である。例えば、ストップ、テールランプ表示部61は複数の画素から構成されるものに限らず、所定領域が一体のRの有機EL層で構成されたものであってもよい。また、発光体は有機EL素子に限らず、LED素子であってもよい。すなわち、ストップ、テールランプ表示部61は、RのLED素子のみで構成し、ターンシグナル表示部62は、RとGのLED素子で構成する形であってもよい。
Since the stop, tail lamp display unit 61, and turn signal display unit 62 are only the self-luminous pixels 51a, the color is not limited to the color filter layer 57 as described above, but is also color-coded according to the emission color of the organic EL element. It may be a shape. In short, the stop and tail lamp display unit 61 emits only R and outputs only red, and the turn signal display unit 62 emits R and G and mixes both to output only amber color as a whole. If it is a form, the self-luminous display apparatus by various well-known organic EL elements is applicable. For example, the stop / tail lamp display unit 61 is not limited to one composed of a plurality of pixels, and the predetermined region may be composed of an integral R organic EL layer. Further, the light emitter is not limited to the organic EL element, but may be an LED element. That is, the stop and tail lamp display unit 61 may be configured by only R LED elements, and the turn signal display unit 62 may be configured by R and G LED elements.
本実施形態では、停止灯を点灯する場合は、ストップ、テールランプ表示部61を構成する画素を発光する。図13の(a)及び(c)に示すように、ストップ、テールランプ表示部61の単位面積K当たりのRの数は、一般表示部63の単位面積K当たりのRの数に比べて多くなる。つまり、Rの密度が高いため、サブピクセル単位、1画素単位の光度が少なくても、単位面積K当たりの光度は、法規要件を十分に満たすことができる。一方、仮に、RGB3色が配置された一般表示部63でストップ・テールランプ表示部61と同じ表示をしようとすると、単位面積K当たりのRが少ないため、Rそれぞれは、ストップ・テールランプ表示部61よりも光度を大きくしなければならない。このように、ストップ・テールランプ表示部61は、Rの密度が高いため、サブピクセル単位、1画素単位で一般表示部63に比べ少ない電流値で、単位面積K当たりの光度は、法規要件を満たすものを出力できる。したがって、1画素当たりの電流値、消費電力を低減でき、自発光画素51aの劣化を抑制することができる。
In the present embodiment, when the stop lamp is turned on, the pixels constituting the stop and tail lamp display unit 61 emit light. As shown in FIGS. 13A and 13C, the number of R per unit area K of the stop and tail lamp display unit 61 is larger than the number of R per unit area K of the general display unit 63. . In other words, since the density of R is high, the luminous intensity per unit area K can sufficiently satisfy the legal requirement even if the luminous intensity of each sub-pixel unit or one pixel unit is small. On the other hand, if an attempt is made to perform the same display as the stop / tail lamp display unit 61 on the general display unit 63 in which three colors of RGB are arranged, since R per unit area K is small, each R is smaller than the stop / tail lamp display unit 61. But you have to increase the brightness. As described above, since the stop / tail lamp display unit 61 has a high density of R, the luminous intensity per unit area K satisfies the legal requirement with a smaller current value than the general display unit 63 in subpixel units and one pixel unit. Can output things. Therefore, the current value and power consumption per pixel can be reduced, and deterioration of the self-luminous pixel 51a can be suppressed.
同様に、ターンシグナル表示部62の単位面積K当たりのR、Gの数は多いと共に、ターンシグナル表示部62のR、Gの密度が高い。このため、少ない電流値で法規要件を満たす光度を確保でき、1画素当たりの電流値を低減でき、自発光画素51の劣化を抑制できる。
Similarly, the number of R and G per unit area K of the turn signal display unit 62 is large, and the density of R and G of the turn signal display unit 62 is high. For this reason, the light intensity satisfying the legal requirement can be secured with a small current value, the current value per pixel can be reduced, and the deterioration of the self-luminous pixel 51 can be suppressed.
また、ストップ、テールランプ表示部61、ターンシグナル表示部62は、自発光画素51aのみで構成されているため、外光に左右されることなく、常に一定の光度を出力できる。一方で、一般表示部63は、自発光画素51aと反射画素51bを日中と夜間とで使い分けるため、視認性を向上させつつ、消費電力を低減することが可能となる。
Further, since the stop, tail lamp display unit 61, and turn signal display unit 62 are composed of only the self-luminous pixels 51a, they can always output a constant luminous intensity without being influenced by external light. On the other hand, since the general display unit 63 uses the self-luminous pixel 51a and the reflective pixel 51b separately for daytime and nighttime, it is possible to reduce power consumption while improving visibility.
なお、発光体として有機EL層を備える表示部50を用いて説明したが、図3の(b)に示すようなバックライトを用いる透過型の表示部等が使用されてもよい。
In addition, although demonstrated using the display part 50 provided with an organic electroluminescent layer as a light-emitting body, the transmission type display part etc. which use a backlight as shown to (b) of FIG. 3 may be used.
以上、本発明の実施形態について説明をしたが、本発明の技術的範囲が本実施形態の説明によって限定的に解釈されるべきではないのは言うまでもない。本実施形態は単なる一例であって、特許請求の範囲に記載された発明の範囲内において、様々な実施形態の変更が可能であることが当業者によって理解されるところである。本発明の技術的範囲は特許請求の範囲に記載された発明の範囲及びその均等の範囲に基づいて定められるべきである。
As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that the technical scope of this invention should not be interpreted limitedly by description of this embodiment. This embodiment is merely an example, and it is understood by those skilled in the art that various modifications can be made within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and the equivalents thereof.
本出願は、2017年5月23日に出願された日本国特許出願(特願2017-101470号)に開示された内容と、2018年2月15日に出願された日本国特許出願(特願2018-024658号)に開示された内容とを適宜援用する。
This application includes the contents disclosed in the Japanese patent application filed on May 23, 2017 (Japanese Patent Application No. 2017-101470) and the Japanese patent application filed on February 15, 2018 (Japanese Patent Application No. No. 2018-024658) is appropriately incorporated.
Claims (8)
- 車両に搭載されると共に、前記車両の外部に向けて画像を表示するように構成された車両用ディスプレー装置であって、
光源から出射された光を前記車両の外部に向けて出射することで、前記車両の外部に向けて画像を表示するように構成された自発光型表示部と、
前記車両の外部からの光を反射することで、前記車両の外部に向けて画像を表示するように構成された反射型表示部と、
前記車両の外部の環境を示す環境情報を取得するように構成された情報取得部と、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるように構成された制御部と、
を備える、車両用ディスプレー装置。 A vehicle display device mounted on a vehicle and configured to display an image toward the outside of the vehicle,
A self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle;
A reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle;
An information acquisition unit configured to acquire environmental information indicating an environment outside the vehicle;
A control unit configured to switch between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environment information;
A vehicle display device comprising: - 前記情報取得部は、センサである、請求項1に記載の車両用ディスプレー装置。 The vehicle display device according to claim 1, wherein the information acquisition unit is a sensor.
- 前記情報取得部は、前記環境情報を無線又は有線により受信するように構成された通信部である、請求項1に記載の車両用ディスプレー装置。 The vehicle display device according to claim 1, wherein the information acquisition unit is a communication unit configured to receive the environment information wirelessly or by wire.
- 前記環境情報は、前記車両の外部から前記車両用ディスプレー装置の表示面に照射される外光の輝度に関する情報を含む、請求項1から3のうちいずれか一項に記載の車両用ディスプレー装置。 The vehicle display device according to any one of claims 1 to 3, wherein the environment information includes information related to luminance of external light irradiated on a display surface of the vehicle display device from outside the vehicle.
- 前記自発光型表示部は、所定の色の光を出射するように構成され、標識灯として機能する標識灯部分を含む、請求項1から4のうちいずれか一項に記載の車両用ディスプレー装置。 The vehicle display device according to any one of claims 1 to 4, wherein the self-luminous display unit includes a marker lamp portion configured to emit light of a predetermined color and functioning as a marker lamp. .
- 車両に搭載されると共に、前記車両の外部に向けて画像を表示するように構成された車両用ディスプレー装置の制御方法であって、
光源から出射された光を前記車両の外部に向けて出射することで前記車両の外部に向けて画像を表示するように構成された自発光型表示部を用いて、画像を表示するステップと、
前記車両の外部からの光を反射することで前記車両の外部に向けて画像を表示するように構成された反射型表示部を用いて、画像を表示するステップと、
前記車両の外部の環境を示す環境情報を取得するステップと、
前記取得された環境情報に基づいて、前記自発光型表示部による画像表示と前記反射型表示部による画像表示を切り替えるステップと、
を含む、制御方法。 A control method for a vehicle display device mounted on a vehicle and configured to display an image toward the outside of the vehicle,
Displaying the image using a self-luminous display unit configured to display an image toward the outside of the vehicle by emitting the light emitted from the light source toward the outside of the vehicle; and
Displaying an image using a reflective display unit configured to display an image toward the outside of the vehicle by reflecting light from the outside of the vehicle; and
Obtaining environmental information indicating an environment outside the vehicle;
Switching between image display by the self-luminous display unit and image display by the reflective display unit based on the acquired environmental information;
Including a control method. - 請求項6に記載された制御方法をコンピュータに実行させるためのプログラム。 A program for causing a computer to execute the control method according to claim 6.
- 請求項7に記載されたプログラムが記憶されたコンピュータ可読記憶媒体。 A computer-readable storage medium in which the program according to claim 7 is stored.
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US16/615,432 US11135970B2 (en) | 2017-05-23 | 2018-05-09 | Vehicle display device, method of controlling vehicle display device, and computer-readable non-transitory storage medium |
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