WO2017056217A1 - 表示装置および表示像投影方法ならびにヘッドアップディスプレイ - Google Patents
表示装置および表示像投影方法ならびにヘッドアップディスプレイ Download PDFInfo
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- WO2017056217A1 WO2017056217A1 PCT/JP2015/077689 JP2015077689W WO2017056217A1 WO 2017056217 A1 WO2017056217 A1 WO 2017056217A1 JP 2015077689 W JP2015077689 W JP 2015077689W WO 2017056217 A1 WO2017056217 A1 WO 2017056217A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/215—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/23—Head-up displays [HUD]
- B60K35/235—Head-up displays [HUD] with means for detecting the driver's gaze direction or eye points
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/80—Arrangements for controlling instruments
- B60K35/81—Arrangements for controlling instruments for controlling displays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/334—Projection means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/213—Virtual instruments
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
- G02B2027/012—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility comprising devices for attenuating parasitic image effects
- G02B2027/0121—Parasitic image effect attenuation by suitable positioning of the parasitic images
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
Definitions
- the present invention relates to a display device, a display image projection method, and a head-up display.
- a head-up display that projects speed and various warning displays on the windshield and displays the projected display image superimposed on the scenery in front of the vehicle is provided. Proposed.
- Patent Document 1 Japanese Patent Laying-Open No. 2015-102695 states that “a display device emits display light representing an image toward a transparent member and displays a virtual image of the image by display light reflected by the transparent member.
- a display device that emits display light representing the image; and an optical element that receives the display light emitted from the display means and transmits the incident display light.
- An optical element that emits display light toward the transparent member by changing the angle of the optical axis of the emitted light with respect to the optical axis of the optical element, the optical element being capable of translation, and the translation of the optical element The optical path of the display light emitted from the optical element and reflected by the transparent member changes accordingly.
- JP 2012-83534 A includes “a display unit that forms an image and a transparent display plate that reflects display light projected from the display unit, and the display unit includes: Main image generating means for generating main display elements such as characters and symbols to be presented to the user, and generating at least one auxiliary element by changing at least one of the position, brightness, size, and color of the main display elements Auxiliary element generating means for generating the display image by superimposing one or more auxiliary elements on the main display element.
- Patent Document 1 With the technique described in Patent Document 1, it is possible to display a display image (virtual image) such as a character or a symbol at an equivalent position for users with different viewpoint heights. However, in the technique described in Patent Document 1, a double image is generated due to refraction of display light, and the visibility of the display image may be reduced.
- a display image virtual image
- a double image is generated due to refraction of display light, and the visibility of the display image may be reduced.
- An object of the present invention is to provide a technique capable of improving the visibility of a display image projected by a display device.
- a display device projects a display image including at least one of a first image that is longer in the left-right direction than the vertical direction and a second image that is longer in the vertical direction than the left-right direction.
- the display image and the first image and the second image according to an amount of shift between the display image and a ghost image that is viewed in a shift direction with respect to the display image.
- a control unit that generates the display image in which at least one of the widths is changed.
- the image display unit may emit display light for projecting the display image generated by the control unit.
- the display image projection method includes at least one of a first image that is longer in the left-right direction than the vertical direction and a second image that is longer in the vertical direction than the left-right direction.
- a display image projection method in a display device for projecting a display image wherein the control unit is configured according to a shift amount between the display image and a ghost image that is viewed in a shift direction with respect to the display image.
- the image display unit includes a display light emitting step of emitting display light for projecting the display image generated by the control unit.
- a head-up display includes a display device that emits display light for projecting a display image, a polarizing device that reflects the display light emitted by the display device, and the polarization An optical element that emits the display light reflected by the device toward the windshield of the vehicle, a pupil position detection unit that calculates pupil position information for specifying the position of the driver's pupil, and the pupil position information And a control unit that moves the height of the optical element to a position where the double image does not occur.
- the visibility of the display image projected by the display device is improved.
- FIG. 3 is a diagram illustrating an outline of a configuration example of a head-up display in Embodiment 1.
- FIG. 3 is a block diagram illustrating an outline of a configuration example of a display device according to Embodiment 1.
- FIG. (A)-(c) is a figure which shows the example of a display in Embodiment 1, (a) is the example of a display before a font process, (b) is the example of a display after a 1st font process, ( c) is a diagram showing a display example after the second font processing.
- FIG. 1 (A)-(c) is a figure which shows the example of a display in Embodiment 1, (a) is the example of a display before a font process, (b) is the example of a display after a 1st font process, ( c) is a diagram showing another display example after the second font processing. (A), (b) is a figure which shows the example of a display in Embodiment 1, (a) shows the example of a display before font processing, (b) shows the example of a display after 1st font processing.
- (A), (b) is a figure which shows the example of a display in Embodiment 1
- (a) is the example of a display after a 2nd font process
- (b) is the table
- (A), (b) is a figure which shows the example of a display in Embodiment 1, (a) shows the example of a display before a font process, (b) shows the example of a display after a 4th font process.
- FIG. (A), (b) is a figure explaining a 4th font process, (a) is the process which extracts the area
- FIG. 5 is a diagram showing an outline of overall processing of the display device in Embodiment 1.
- 6 is a diagram illustrating an outline of a configuration example of a head-up display according to Embodiment 2.
- FIG. 6 is a diagram illustrating an outline of a configuration example of a head-up display according to Embodiment 2.
- FIG. 6 is a diagram illustrating an outline of a configuration example of a head-up display according to Embodiment 2.
- FIG. 10 is a block diagram illustrating an outline of a configuration example of a head-up display in Embodiment 2.
- FIG. 1 is a diagram illustrating an outline of a configuration example of a head-up display according to the first embodiment.
- the vertical direction viewed from the driver will be described as the vertical direction of the display image 1204, and the horizontal direction viewed from the driver will be described as the horizontal direction of the display image 1204.
- a windshield 120 which is a transmissive member onto which display lights 11 and 12 are projected, has an intermediate film 1201 sandwiched between an outer glass 1200, an inner glass 1202, an outer glass 1200, and an inner glass 1202. Are joined together.
- the windshield 120 is located in front of the driver who drives the vehicle, for example.
- the operation is as follows. For example, an image including traffic information in the navigation device is projected on the windshield 120 as a display image 1204.
- the display light 12 projected on the windshield 120 is reflected by the windshield 120 and enters the driver's pupil 1205. Then, the driver can visually recognize a display image 1204 made up of traffic information in the navigation device, for example, superimposed on the scenery in front of the vehicle.
- the display device 10 and the polarization device 20 are stored in, for example, a dashboard.
- the display device 10 includes, for example, a liquid crystal element and a light source. And the display apparatus 10 produces
- the display lights 11 and 12 emitted from the display device 10 are applied to the polarizing device 20. Thereafter, the display lights 11 and 12 irradiated on the polarizing device 20 are reflected toward the windshield 120. Then, the display lights 11 and 12 reflected by the polarizing device 20 are incident on the inner glass 1202.
- the display light 12 is reflected by the surface of the inner glass 1202 and enters the pupil 1205.
- the driver visually recognizes the display image 1204.
- the display light 11 is incident on the pupil 1205 by being reflected by the back surface of the outer glass 1200.
- the driver visually recognizes the ghost image 1203. In this way, there are two optical paths reaching the pupil 1205, and the driver visually recognizes the display image 1204 and the ghost image 1203 by overlapping them vertically.
- FIG. 2 is a diagram illustrating an outline of a configuration example of the display device 10 according to the first embodiment. As illustrated in FIG. 2, the display device 10 includes an image display unit 100 and a control unit 200.
- the display device 10 includes a processor, a memory, and the like, and causes the computer of the display device 10 to function by executing a program on the memory by the processor.
- the control unit 200 includes a pupil position detection unit 210, a font processing unit 220, and a double image shift amount calculation unit 230.
- the control unit 200 extends in the left-right direction (longer in the left-right direction than in the up-down direction) according to the shift amount m between the display image and the ghost image that is visually recognized as shifted in the shift direction with respect to the display image. And a second image that extends in the vertical direction (longer in the vertical direction than in the horizontal direction) and generates a display image in which the width of the image is changed (changes in the short direction).
- the 1st image (horizontal line) contained in a display image is the figure (for example, arrow) showing the content of the straight line and curve which extend in a horizontal direction (left-right direction), and traffic information.
- the extended second image (vertical line) included in the display image is a straight line or curve extending in the vertical direction (vertical direction) or the content of traffic information (for example, an arrow).
- the pupil position detection unit 210 of the control unit 200 is input from, for example, an imaging unit (the imaging unit is attached to a vehicle rearview mirror, a meter panel, or the like in a state where the imaging element is directed toward the driver).
- the position of the pupil is detected by analyzing the image data of the image including the driver's pupil. Further, the pupil position detection unit 210 calculates pupil position coordinates for specifying the detected pupil position. Then, the pupil position detection unit 210 inputs the calculated pupil position coordinates to the double image shift amount calculation unit 230.
- the pupil position detection unit 210 includes a vehicle mirror (rear mirror) mounting position (specified by three-dimensional coordinates for specifying a position at which the mirror is mounted) and the mirror vertical direction with respect to the horizontal plane. The pupil position coordinates may be calculated based on the angle and the angle in the horizontal direction of the mirror with respect to the vertical plane orthogonal to the mirror.
- the double image shift amount calculation unit 230 of the control unit 200 includes the pupil position coordinates input from the pupil position detection unit 210, the position and tilt of the polarizing device (tilt with respect to the horizontal plane), and the tilt of the windshield (tilt with respect to the horizontal plane). And a deviation amount m between the display image and the ghost image is calculated based on the thickness of the windshield.
- the double image shift amount calculation unit 230 inputs the calculated shift amount m to the font processing unit 220.
- FIGS. 3A to 3C are diagrams illustrating an example of font processing.
- the display image 1204 includes a horizontal line 1211 that is a first image extending in the horizontal direction and a vertical line 1210 that is a second image extending in the vertical direction. .
- the display image 1204 does not necessarily include the first image extending in the left-right direction and the second image extending in the up-down direction, and includes at least one of them.
- FIG. 3A shows a display example before font processing.
- the ghost image 1203 is visually recognized as being shifted upward by a shift amount m in the shift direction with respect to the display image 1204.
- the shift amount m is, for example, the distance from each part of the display image 1204 (upper right corner 1301, lower left corner 1302, etc.) to the corresponding part of the ghost image 1203 (upper right corner 1401, lower left corner, etc.). More specifically, for example, the distance from the upper right corner 1301 of the display image to the upper right corner 1401 of the ghost image is the shift amount m.
- the shift amount m input to the font processing unit 220 of the control unit 200 is a value half the value of t which is the width of the vertical line 1210 and the horizontal line 1211 of the display image 1204 ( The value obtained by multiplying t by 0.5) or less.
- a ghost image 1203 with a shift amount m is visually recognized above the vertical line 1210 and the horizontal line 1211 constituting the display image 1204.
- the width of the vertical line 1210 is visually recognized at t, whereas the horizontal line 1211 is integrated with the upper ghost image 1203 and is visually recognized with a width T obtained by adding the width t and the shift amount m. Therefore, in the example shown in FIG. 3A, the width of the horizontal line 1211 displayed integrally with the ghost image 1203 is recognized to be thicker than the width of the vertical line 1210. Since the width is different from 1211, the driver feels uncomfortable.
- FIG. 3B shows a display example after the first font processing.
- the font processing unit 220 of the control unit 200 displays a display image 1204 in which the width of the horizontal line (first image) 1211 is changed according to the input shift amount m.
- the first font processing for generating is performed. Specifically, the font processing unit 220 generates a display image 1204 in which the width of the horizontal line 1211 is narrowed by the shift amount m. Note that the font processing unit 220 may narrow the width of the horizontal line 1211 upward or downward.
- the horizontal line 1211 having the width t ⁇ m is visually recognized with the width t integrally with the ghost image 1203 having the upper width m.
- the width of the horizontal line 1211 displayed integrally with the ghost image 1203 is visually recognized with the same width as the width of the vertical line 1210, and the uncomfortable feeling given to the driver can be reduced.
- the font processing unit 220 determines whether the vertical line (second image) corresponds to the input shift amount m. ) Second font processing for generating a display image 1204 with the width of 1211 changed may be performed. Specifically, the font processing unit 220 generates a display image 1204 in which the width of the vertical line 1210 is increased by the shift amount m.
- the horizontal line 1211 having the width t is visually recognized with the width t + m integrally with the ghost image 1203 having the upper width m.
- the width of the horizontal line 1211 displayed integrally with the ghost image 1203 is visually recognized with the same width as the width of the vertical line 1210, and the uncomfortable feeling given to the driver can be reduced.
- the font processing unit 220 may increase the width of the vertical line 1210 in the left direction or increase the width in the right direction.
- FIG. 4A to FIG. 4C are used for font processing when the shift amount m is equal to or greater than half the value of t, which is the width of the vertical line 1210 and the width of the horizontal line 1211, and less than t. I will explain.
- FIG. 4A shows a display example before font processing.
- the ghost image 1203 is visually recognized as shifted upward by a shift amount m with respect to the display image 1204.
- the displacement amount m is a half value of t which is the width of the vertical line 1210 and the horizontal line 1211 of the display image 1204 (a value obtained by multiplying t by 0.5). It exceeds and is t or less.
- FIG. 4B is a diagram showing a display example after the first font processing.
- FIG. 4C shows a display example after the second font processing.
- the font processing unit 220 of the control unit 200 firstly explains according to the inputted deviation amount m with reference to FIG. The first font processing is performed, and then the second font processing described with reference to FIG. 4C is performed. More specifically, the font processing unit 220 reduces the width of the horizontal line by 2t ⁇ T and reduces the width of the vertical line 1210 to 2m ⁇ when the shift amount m exceeds half the value of t and equal to or less than t.
- a display image 1204 thickened by t is generated.
- the width of the horizontal line (first image) 1211 becomes Tt (that is, the shift amount m).
- the horizontal line 1211 is visually recognized with a width of 2 m (a width obtained by doubling the displacement amount m) integrally with the upper ghost image 1203.
- the width of the vertical line (second image) 1210 is increased by 2 m ⁇ t by the second font processing.
- the width of the vertical line 1210 is 2 m.
- FIGS. 5A, 5 B, 6 A, and 6 font processing in the case where the displacement amount m exceeds the value of t, which is the width of the vertical line 1210 and the width of the horizontal line 1211, is illustrated in FIGS. 5A, 5 B, 6 A, and 6.
- t which is the width of the vertical line 1210 and the width of the horizontal line 1211
- FIGS. 5A, 5 B, 6 A, and 6B A description will be given using (b).
- the shape of the character is complicated (for example, when the character is a kanji or hiragana character)
- FIGS. 5A, 5B, 6A, and 6B are used. Processing may be performed.
- FIG. 5A shows a display example before font processing.
- the ghost image 1203 is visually recognized as being shifted upward by the shift amount m with respect to the display image 1204.
- the shift amount m exceeds the value of t, which is the width of the vertical line 1210 and the width of the horizontal line 1211 of the display image 1204, and the horizontal line 1211 of the display image 1204 and the ghost image 1203.
- t the width of the vertical line 1210 and the width of the horizontal line 1211 of the display image 1204
- a gap having a height of s is visually recognized.
- the font processing unit 220 of the control unit 200 first performs the first font processing described in FIG. 5B according to the input displacement amount m, Thereafter, the second font processing described in FIG. 6A is performed, and finally the third font processing described in FIG. 6B is performed.
- FIG. 5B shows a display example after the first font processing.
- FIG. 6A is a diagram illustrating a display example after the second font processing.
- the font processing unit 220 performs first font processing (FIG. 5B) that thickens the width of the horizontal line (first image) 1211 by s (the height of the gap, which is equal to T ⁇ 2t). Thereafter, the second font processing (FIG. 6A) is performed, in which the width of the vertical line (second image) 1210 is increased by s + m (a value obtained by adding the height of the gap and the displacement amount m). Finally, the length of the vertical line 1210 is increased to a length of (t + s + m) / t times compared to the length before the third font process, and the length of the horizontal line 1211 is set before the third font process. The third font processing (FIG. 6 (b)) is performed to make the length (t + s + m) / t times longer than the length of.
- the gap between the horizontal line 1211 of the display image 1204 and the ghost image 1203 is eliminated by performing the first font processing. Further, the horizontal line 1211 is visually recognized with a width of T + s integrally with the upper ghost image 1203.
- the width of the vertical line 1210 is T + s.
- the vertical line 1210 is visually recognized with the same width as the horizontal line 1211 displayed integrally with the ghost image 1203.
- the vertical line 1210 and the horizontal line 1211 displayed integrally with the ghost image 1203 are both T + s, the vertical line 1210 and the horizontal line 1211 become too thick, and the readability of the character deteriorates. there is a possibility. Therefore, after the first font processing and the second font processing are performed, the third font processing for adjusting the aspect ratio is performed.
- the length of the vertical line 1210 is increased to a length (t + s + m) / t times longer than the length before the third font processing by the third font processing. Is done.
- the length of the horizontal line 1211 is increased to a length of (t + s + m) / t times compared to the length before the third font processing. That is, when the shift amount m between the display image 1204 and the ghost image 1203 exceeds the width of the horizontal line, the control unit 200 increases the width of the horizontal line and the width of the vertical line, and sets the length of the horizontal line and the length of the vertical line. A display image 1204 with a longer length is generated. As a result, the vertical line 1210 is visually recognized with the same width as the horizontal line 1211 displayed integrally with the ghost image 1203, and the shape of the character before the first font processing and the second font processing is maintained. Can maintain the legibility of characters.
- FIG. 7A shows a display example before font processing.
- the ghost image 1203 is visually recognized with respect to the display image 1204 shifted in the shift direction (upward in the case of FIG. 7A) by the shift amount m.
- a ghost image 1203 with a shift amount m is visually recognized above the vertical line 1210 and the horizontal line 1211 constituting the display image 1204.
- FIG. 7B shows a display example after the fourth font processing.
- a ghost image 1700 that has been subjected to gradation processing is displayed in a region where the ghost image 1203 is visually recognized by the fourth font processing by the font processing unit 220.
- the ghost image 1700 that has been subjected to gradation processing is displayed by the font processing unit 220 performing gradation processing on the display image 1204 that gradually decreases the luminance from the color of the display image 1204.
- a visual image obtained by combining the gradation-processed display image 1204 and the gradation-processed ghost image 1700 can be visually recognized as a single gradation-processed image as a whole, and the driver can feel less uncomfortable.
- FIG. 8A is a diagram for explaining processing for extracting a region where a shift has occurred
- FIG. 8B is a diagram for explaining processing for applying gradation to the gradation application region.
- the font processing unit 220 of the control unit 200 divides the display image 1204 into strips at predetermined intervals in the direction in which the deviation occurs.
- the deviation occurs in the vertical direction.
- the font processing unit 220 divides the display image 1204 into strips at predetermined intervals in the vertical direction.
- the font processing unit 220 divides the display image 1204 into strips at predetermined intervals in the left-right direction when the shift occurs in the left-right direction.
- the font processing unit 220 divides the display image 1204 into strips at predetermined intervals in the oblique direction.
- the font processing unit 220 extracts a gradation application region 802 and a gradation non-application region 803 from the divided display image 801 divided into strips. It should be noted that the font processing unit 220 extracts a region with a shift width t on the shift direction side from the divided display image 801 as 802 and extracts the other region as a gradation non-applied region 803. Then, the font processing unit 220 generates a gradation display image in which the brightness is gradually reduced from the color of the display image in the gradation application region 802 extracted from the display image 1204.
- the image display unit 100 emits display light for projecting the display image 1204 generated by the process shown in any of FIGS. 3 to 8 described above by the font processing unit 220 of the control unit 200.
- FIG. 9 is a diagram showing an overview of the overall processing of the display device 10 according to the first embodiment.
- the imaging unit 30 images the driver's pupil 1205.
- the imaging unit 30 inputs image data of an image including the driver's pupil 1205 captured in S ⁇ b> 901 to the control unit 200.
- the pupil position detection unit 210 of the control unit 200 detects the position of the pupil by analyzing the image data input from the imaging unit 30. Further, the pupil position detection unit 210 calculates pupil position coordinates for specifying the detected pupil position. Then, the pupil position detection unit 210 inputs the calculated pupil position coordinates to the double image shift amount calculation unit 230.
- the double image shift amount calculation unit 230 of the control unit 200 determines the pupil position coordinates input in S903, the position and tilt of the polarizing device 20 (tilt with respect to the horizontal plane), and the windshield 120. Based on the inclination (inclination with respect to the horizontal plane) and the thickness of the windshield 120, a deviation amount m between the display image 1204 and the ghost image 1203 is calculated.
- the double image shift amount calculation unit 230 inputs the calculated shift amount m to the font processing unit 220.
- the font processing unit 220 of the control unit 200 determines whether or not the shift amount m input in S904 exceeds the character width (t). When the font processing unit 220 of the control unit 200 determines that the displacement amount m does not exceed the character width (t) (S905-No), the process proceeds to S907. On the other hand, when the font processing unit 220 of the control unit 200 determines that the shift amount m exceeds the character width (t) (S905-Yes), the process proceeds to S906.
- step S906 the font processing unit 220 of the control unit 200 performs first font processing (described above, with the width of the horizontal line 1211 thickened by s (the height of the gap, which is equal to T-2t). 5 (b)). Further, the font processing unit 220 performs the second font processing (described above, FIG. 6A) in which the width of the vertical line 1210 is increased by s + m (a value obtained by adding the height of the gap and the shift amount m). . The font processing unit 220 also increases the length of the vertical line 1210 to (t + s + m) / t times the length before the third font processing, and the length of the horizontal line 1211 The third font processing (described above, FIG. 6B) is performed so as to be lengthened to a length of (t + s + m) / t times compared to the length of 3 before the font processing.
- first font processing described above, with the width of the horizontal line 1211 thickened by s (the height of the gap, which is equal
- step S905 the font processing unit 220 of the control unit 200 determines in step S907 that the shift amount m input in step S904 exceeds the value obtained by multiplying the character width (t) by 0.5, and It is determined whether or not the character width (t) or less.
- the font processing unit 220 of the control unit 200 determines that the displacement amount m exceeds 0.5 times the character width (t) and is not less than the character width (t) (No in S907)
- the process proceeds to S909. move on.
- the font processing unit 220 of the control unit 200 determines that the shift amount m exceeds 0.5 times the character width (t) and is equal to or less than the character width (t) (S907—Yes). , The process proceeds to S908.
- the font processing unit 220 performs the first font processing (described above, FIG. 4B), and then performs the second font processing (described above, FIG. 4C). Specifically, the font processing unit 220 generates a display image 1204 in which the width of the horizontal line is reduced by 2t-T and the width of the vertical line 1210 is increased by 2 m ⁇ t.
- the font processing unit 220 of the control unit 200 determines that the shift amount m input in S904 is not 0, but less than the value obtained by multiplying the character width (t) by 0.5. It is determined whether or not.
- the font processing unit 220 of the control unit 200 determines that the shift amount m is 0, that is, there is no shift (No in S909), the process in the font processing unit 220 is not performed, and the process proceeds to S911.
- the font processing unit 220 of the control unit 200 determines that the shift amount m is not 0 and is equal to or less than a value obtained by multiplying the character width (t) by 0.5 (S909-Yes) the process proceeds to S910.
- the font processing unit 220 generates a display image 1204 in which the width of the horizontal line is reduced by the shift amount m.
- the font processing unit 220 generates a display image 1204 in which the width of the vertical line is increased by the shift amount m.
- the image display unit 100 emits display light for projecting the display image 1204 generated by the font processing unit 220 of the control unit 200 by any one of the above-described processes of S906, S908, and S910. .
- the control unit 200 determines at least any one of the horizontal line 1211 and the vertical line 1210 included in the display image 1204 according to the shift amount between the display image 1204 and the ghost image 1203.
- the double image can be made inconspicuous even when the display area of the head-up display is enlarged, and the display projected by the display device 10 The visibility of the image 1204 can be improved.
- the control unit 200 when the shift amount between the display image 1204 and the ghost image 1203 does not exceed the width of the horizontal line 1211, the control unit 200 generates the display image 1204 in which the width of the vertical line 1210 is increased by the shift amount, thereby generating the ghost.
- the width of the horizontal line 1211 displayed integrally with the image 1203 is visually recognized with the same width as the width of the vertical line 1210, and the uncomfortable feeling given to the driver can be reduced.
- the control unit 200 when the shift amount between the display image 1204 and the ghost image 1203 does not exceed the width of the horizontal line 1211, the control unit 200 generates the display image 1204 by reducing the width of the horizontal line 1211 by the shift amount, thereby generating the ghost image.
- An unpleasant feeling given to the driver can be reduced without changing the appearance of the display image 1204 visually recognized integrally with 1203 from the appearance of the display image 1204 before font processing.
- control unit 200 increases the width of the horizontal line 1211 and the width of the vertical line 1210 to increase the length of the horizontal line 1211 and the vertical line.
- control unit 200 generates a gradation-processed display image 1204 in which the luminance is changed stepwise or continuously in a shift direction from the color of the display image 1204, thereby making the double image less noticeable. Can be made.
- the head-up display of the second embodiment is different from the head-up display of the first embodiment in that it further includes an optical element 40 that can move in the vertical direction. The differences between the second embodiment and the first embodiment will be described below mainly with reference to FIGS.
- FIG. 10 is a diagram showing an outline of a configuration example of a conventional head-up display in which a double image is generated. As shown in FIG. 10, the display device 1 emits the generated display lights 11 and 12 to a polarizing device 20 configured with a mirror or the like.
- Display lights 11 and 12 emitted from the display device 10 enter the polarization device 20. Thereafter, the display lights 11 and 12 incident on the polarizing device 20 are reflected toward the windshield. Then, the display lights 11 and 12 reflected by the polarizing device 20 are incident on the inner glass 1202.
- the incident angle at which the display light 12 is incident on the inner glass 1202 of the windshield 120 is ⁇
- the incident angle at which the display light 11 is incident on the inner glass 1202 is ⁇ 1.
- the value of ⁇ ( ⁇ 1) is not “0”. For this reason, there are two optical paths that reach the pupil 1205, and the driver visually recognizes the display image 1204 and the ghost image 1203 by overlapping them vertically.
- the head-up display according to the second embodiment includes a display device 10, a polarizing device 20, and an optical element 40 that can move in the vertical direction.
- Display lights 11 and 12 emitted from the display device 10 enter the polarization device 20. Thereafter, the display lights 11 and 12 incident on the polarizing device 20 are reflected toward the optical element 40. The display lights 11 and 12 that pass through the optical element 40 are emitted from the optical element 40 with their directions changed. The display lights 11 and 12 emitted from the optical element 40 are incident on the inner glass 1202.
- the optical element 40 emits the incident display lights 11 and 12 while changing directions at different angles.
- the optical element 40 is held by, for example, a holding member (not shown) that can move in the vertical direction.
- the optical element 40 can be translated in the vertical direction by moving the holding member in the vertical direction by the rotational power of the motor.
- the distance between the optical element 40 and the polarizing device 20 is shortened. Then, in the state shown in FIG. 12, the display lights 11 and 12 are emitted from the surface of the optical element 40 in the direction of the driver's pupil 1205 in the state shown in FIG. 12 as compared with the state before being translated downward in FIG. 11. Emitted. Therefore, the display lights 11 and 12 are reflected above the windshield 120 in the state shown in FIG. 12 as compared to the state before being translated downward in FIG. That is, the display light 12 is reflected above the inner glass 1202 as compared to before being translated downward. In addition, the display light 11 is reflected above the outer glass 1200 as compared to before being translated downward.
- the distance between the optical element 40 and the polarizing device 20 becomes longer.
- the display lights 11 and 12 are emitted from the optical element 40 in the direction opposite to the driver's pupil 1205 in the state shown in FIG. 13 as compared with the state before being translated upward in FIG. 12. It is emitted from the surface. Therefore, the display lights 11 and 12 are reflected below the windshield 120 in the state shown in FIG. 13 as compared to the state before being translated upward in FIG.
- the display light 11 is reflected below the outer glass 1200 as compared with before being translated upward. Accordingly, the height of the driver's pupil 1205 can be changed, and it is possible to display display images such as characters and symbols at equivalent positions for users with different viewpoint heights.
- the reflected light of the display light 12 from the inner glass 1202 and the reflected light of the display light 11 from the outer glass 1200 are overlapped to enter the driver's pupil 1205.
- the double image can be prevented by inserting 40.
- FIG. 14 is a diagram showing an outline of a configuration example of the head-up display in the second embodiment.
- the head-up display includes a display device 10, an imaging unit 30, and an optical element 40.
- the display device 10 includes an image display unit 100, a control unit 200, and a storage unit 300.
- the control unit 200 includes a pupil position detection unit 210, a double image shift amount calculation unit 230, and an optical element control unit 240.
- the pupil position coordinates which are three-dimensional coordinates for specifying the position of the pupil 1205, and the height of the optical element 40 that does not generate a double image (the height of the optical element 40 is For example, the height from the road surface on which the automobile is traveling to the optical element 40) is stored in association with each other. That is, the display device 10 stores the pupil position coordinates and the height of the optical element in which ⁇ and ⁇ 1 are equal to each other in association with each other.
- the imaging unit 30 inputs image data of an image including the captured driver's pupil 1205 to the control unit 200.
- Image data input by the imaging unit 30 to the control unit 200 is input to the pupil position detection unit 210 of the control unit 200.
- the pupil position detection unit 210 of the control unit 200 detects the position of the pupil by analyzing the image data of the image including the driver's pupil input from the imaging unit 30. Further, the pupil position detection unit 210 calculates pupil position coordinates for specifying the detected pupil position. Then, the pupil position detection unit 210 inputs the calculated pupil position coordinates (three-dimensional coordinates for specifying the pupil position) to the optical element control unit 240. Instead of detecting the position of the pupil by analyzing the image data, the pupil position detection unit 210 has a three-dimensional coordinate for specifying the mounting position of the mirror (back mirror) of the vehicle (the position where the mirror is mounted). ) And the angle in the vertical direction of the mirror with respect to the horizontal plane and the angle in the horizontal direction of the mirror with respect to the vertical plane orthogonal to the mirror may be calculated.
- the optical element control unit 240 of the control unit 200 acquires from the storage unit 300 the height of the optical element 40 that does not generate a double image, corresponding to the pupil position coordinates input from the pupil position detection unit 210.
- the optical element control unit 240 moves the optical element 40 so as to become the optical element 40 acquired from the storage unit 300. Thereby, the optical element 40 is moved to a height at which a double image is not generated.
- the control unit 200 is not necessarily included in the display device 10 and may be included in the head-up display separately from the display device 10.
- the three-dimensional coordinates for specifying the position of the pupil 1205 and the three-dimensional coordinates for specifying the position where the mirror is attached have, for example, the center of the windshield 120 or the center of the handle as the origin.
- the control unit 200 moves the height of the optical element 40 to a position where no double image is generated based on the pupil position information, so that the double image is displayed.
- the visibility of the display image 1204 projected by the display device 10 is improved.
- the present invention made by the present inventor has been specifically described based on the embodiment.
- the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.
- the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. .
- each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
- Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor.
- Information such as programs, tables, and files for realizing each function can be stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
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Abstract
Description
(実施の形態1)
<ヘッドアップディスプレイ>
図1は、実施の形態1におけるヘッドアップディスプレイの構成例の概要を示す図である。以下、運転者から見ての上下方向を表示像1204の上下方向として説明し、運転者から見ての左右方向を表示像1204の左右方向として説明する。
図2は、実施の形態1における表示装置10の構成例の概要を示す図である。図2に示されるように、表示装置10は、画像表示部100と、制御部200とを有する。
図3(a)~(c)はフォント処理の例を説明する図である。以下では、ずれ量mが、縦線1210の幅と横線1211の幅であるtの半分の値以下である場合のフォント処理について説明する。図3(a)~(c)に示されるように、表示像1204は、左右方向に伸びる第1の像である横線1211と、上下方向に伸びる第2の像である縦線1210とを含む。なお、表示像1204は、必ずしも、左右方向に伸びる第1の像と、上下方向に伸びる第2の像とを含んでいるとは限らず、少なくともいずれか一方を含む。
図9は、実施の形態1における表示装置10の全体処理の概要を示す図である。
以上説明した実施の形態1における表示装置10によれば、制御部200が、表示像1204とゴースト像1203とのずれ量に応じて、表示像1204に含まれる横線1211および縦線1210の少なくともいずれか一方の幅を変化させた表示像1204を生成することで、ヘッドアップディスプレイの表示エリアが大画面化した場合でも、二重像を目立ちにくくさせることができ、表示装置10により投影される表示像1204の視認性を向上できる。
(実施の形態2)
実施の形態2のヘッドアップディスプレイは、上下方向に移動可能な光学素子40をさらに有する点で実施の形態1のヘッドアップディスプレイと異なる。以下、実施の形態2を実施の形態1と異なる点を主に図10~図14を用いて説明する。
以上説明した実施の形態2におけるヘッドアップディスプレイによれば、制御部200が、瞳位置情報に基づき、光学素子40の高さを二重像が発生しない位置まで移動させることで、二重像が発生しなくなり、表示装置10により投影される表示像1204の視認性が向上する。
20…偏光装置、
30…撮像部、
40…光学素子、
100…画像表示部、
200…制御部、210…瞳位置検出部、220…フォント処理部、230…二重像ずれ量算出部、240…光学素子制御部、
300…記憶部。
Claims (8)
- 上下方向よりも左右方向に長い第1の像と、左右方向よりも上下方向に長い第2の像との少なくともいずれか一方を含む表示像を投影する表示装置であって、
前記表示像と、前記表示像に対してずれ方向にずれて視認されるゴースト像との、ずれ量に応じて、前記第1の像と、前記第2の像との少なくともいずれか一方の幅を変化させた前記表示像を生成する制御部と、
前記制御部が生成した前記表示像を投影するための表示光を出射する画像表示部と、
を有する、表示装置。 - 請求項1に記載の表示装置において、
前記制御部は、前記表示像と前記ゴースト像との前記ずれ量が前記第2の像の前記幅を超えない場合に、前記第2の像の前記幅を前記ずれ量だけ細くした前記表示像を生成する、表示。 - 請求項1に記載の表示装置において、
前記制御部は、前記表示像と前記ゴースト像との前記ずれ量が前記第2の像の前記幅を超えない場合に、前記第1の像の前記幅を前記ずれ量だけ太くした前記表示像を生成する、表示装置。 - 請求項1に記載の表示装置において、
前記制御部は、前記表示像と前記ゴースト像との前記ずれ量が前記第2の像の前記幅を超えない場合に、前記第2の像の前記幅を細くし、前記第1の像の前記幅を太くした前記表示像を生成する、表示装置。 - 請求項1に記載の表示装置において、
前記制御部は、前記表示像と前記ゴースト像との前記ずれ量が前記第2の像の前記幅を超える場合に、前記第2の像の前記幅と前記第1の像の前記幅とを太くし、前記第2の像の長さと前記第1の像の長さとを長くする、表示装置。 - 請求項1に記載の表示装置において、
前記表示像の、前記ずれ方向側のずれ量分の領域に、前記ずれ方向に向けて前記表示像の色から段階的に輝度を下げる変化させた表示像を生成する、表示装置。 - 上下方向よりも左右方向に長い第1の像と、左右方向よりも上下方向に長い第2の像との少なくともいずれか一方を含む表示像を投影する表示装置における表示像投影方法であって、
制御部が、前記表示像と、前記表示像に対してずれ方向にずれて視認されるゴースト像との、ずれ量に応じて、前記第1の像と、前記第2の像との少なくともいずれか一方の幅を変化させた前記表示像を生成する表示像生成ステップと、
画像表示部が、前記制御部が生成した前記表示像を投影するための表示光を出射する表示光出射ステップと、
を有する、表示像投影方法。 - 表示像を投影するための表示光を出射する表示装置と、
前記表示装置により出射された前記表示光を反射する偏光装置と、
前記偏光装置により反射された前記表示光を車両のフロントガラスに向けて出射する光学素子と、
運転者の瞳の位置を特定するための瞳位置情報を算出する瞳位置検出部と、
前記瞳位置情報に基づき、前記光学素子の高さを前記二重像が発生しない位置まで移動させる制御部と、
を有する、ヘッドアップディスプレイ。
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| JP2017542578A JP6577041B2 (ja) | 2015-09-30 | 2015-09-30 | 表示装置および表示像投影方法 |
| US15/764,179 US10339843B2 (en) | 2015-09-30 | 2015-09-30 | Display device, display image projecting method and head up display |
| PCT/JP2015/077689 WO2017056217A1 (ja) | 2015-09-30 | 2015-09-30 | 表示装置および表示像投影方法ならびにヘッドアップディスプレイ |
| CN201580083423.7A CN108027508B (zh) | 2015-09-30 | 2015-09-30 | 显示装置和显示像投影方法以及平视显示器 |
| CN201911080128.2A CN110824709B (zh) | 2015-09-30 | 2015-09-30 | 平视显示器 |
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| WO2024247953A1 (ja) * | 2023-05-29 | 2024-12-05 | 日本精機株式会社 | プログラム、表示装置、ヘッドアップディスプレイ装置、車両、表示方法 |
| WO2024247954A1 (ja) * | 2023-05-29 | 2024-12-05 | 日本精機株式会社 | プログラム、表示装置、ヘッドアップディスプレイ装置、車両、表示方法 |
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| WO2024247954A1 (ja) * | 2023-05-29 | 2024-12-05 | 日本精機株式会社 | プログラム、表示装置、ヘッドアップディスプレイ装置、車両、表示方法 |
| WO2025089230A1 (ja) * | 2023-10-27 | 2025-05-01 | 日本精機株式会社 | プログラム、表示装置、ヘッドアップディスプレイ装置、車両、表示方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110824709B (zh) | 2021-12-14 |
| CN108027508B (zh) | 2020-10-20 |
| JPWO2017056217A1 (ja) | 2018-08-30 |
| US10339843B2 (en) | 2019-07-02 |
| US20180277027A1 (en) | 2018-09-27 |
| CN110824709A (zh) | 2020-02-21 |
| JP6577041B2 (ja) | 2019-09-18 |
| CN108027508A (zh) | 2018-05-11 |
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