Patents Assigned to Nippon Seiki Co., Ltd.
-
Patent number: 10310262Abstract: The problem addressed by the present invention is to provide a head-up display device suitable for a curved windshield in a head-up display device provided with a combiner and a cover wherein the cover moves in the longitudinal direction of the vehicle. A front part of a guide rail extending in the longitudinal direction of the vehicle is curved downward. A cover, which moves along this guide rail, is moved by a drive link and a driven link. Because the curved guide rail is used, the dimension of a head-up display device in the longitudinal direction of the vehicle can be reduced, a large inclined surface can be provided on the upper front part of a housing, and the head-up display device can be placed close to a curved windshield.Type: GrantFiled: February 8, 2016Date of Patent: June 4, 2019Assignee: NIPPON SEIKI CO., LTD.Inventors: Yukio Ogasawara, Yohei Sato
-
Patent number: 10302940Abstract: Provided is a head-up display which facilitates the differentiation of information contained in a stereoscopic display and which enables display having a stereoscopic effect, by rotating either a first display surface of a first image generation unit corresponding to a first virtual image display surface, or a reflection unit for aiming first display light emitted from the first image generation unit at a front window shield (transmission/reflection unit), to change the angle formed by the first virtual image display surface and a second virtual image display surface.Type: GrantFiled: April 14, 2016Date of Patent: May 28, 2019Assignee: NIPPON SEIKI CO., LTD.Inventors: Kazuya Matsuura, Yuta Kikuchi, Takeru Kawai, Takashi Yamazoe, Yuichi Takahashi
-
Patent number: 10302939Abstract: The present invention is compact and inexpensive, has good light efficiency, and enables a display image having a plurality of display distances to be displayed. A display emits projection light for displaying a display image at a predetermined position, and an image formation position adjusting mirror receives the projection light emitted from the display, performs conversion into a plurality of first projection light and second projection light that have different image formation distances by changing the image formation distance of the projection light that is at least part of the incident projection light, and reflects the first projection light and the second projection light to project the first projection light and the second projection light onto a first screen and a second screen.Type: GrantFiled: August 7, 2015Date of Patent: May 28, 2019Assignee: NIPPON SEIKI CO., LTD.Inventors: Kazuo Morohashi, Megumi Sato, Yuichi Takahashi, Kazuya Matsuura
-
Patent number: 10293690Abstract: A vehicle information projecting system includes: an image-capturing unit capturing an image of a road in front of a vehicle; a display mechanism projecting vehicle information onto a display region set as a portion of a windshield and displaying the vehicle information in the display region so that a virtual image of the vehicle information overlaps the actual landscape from the viewpoint of the vehicle driver; a rear vehicle information acquiring unit acquiring rear vehicle information representing the fact that a rear vehicle is present at the rear of the vehicle; lane change information acquiring units acquiring lane change information representing the fact that the vehicle is changing lanes from a traveling lane to a lane adjacent to the traveling lane; and a processing unit assessing the degree to which attention should be paid to the rear vehicle, based on the rear vehicle information and the lane change information.Type: GrantFiled: December 4, 2015Date of Patent: May 21, 2019Assignee: NIPPON SEIKI CO., LTD.Inventor: Takeshi Ejiri
-
Patent number: 10288882Abstract: Provided is a head mounted display (HMD) device that lets a user organize added information and thereby makes it possible to improve the ease with which the information can be perceived. A head mounted display device enables a user to visually recognize a virtual image overlaid on a scene. A control unit virtually sets a plurality of display zones, having different depth-direction positions, in front of the user; identifies a display zone being gazed at by the user, on the basis of gaze position information from a gaze position detection unit; drives a focus position adjusting unit so as to align the depth position of the identified display zone with the focus position of a virtual image of the displayed image; acquires, from a cloud server via a communication unit, image information indicating information associated with the identified display zone; and causes a display to display the display image corresponding to the acquired image information.Type: GrantFiled: March 7, 2016Date of Patent: May 14, 2019Assignee: NIPPON SEIKI CO., LTD.Inventors: Teruko Ishikawa, Ikuyo Sasajima, Yuki Takahashi, Tadashige Makino
-
Publication number: 20190107986Abstract: Provided is a vehicle display device such that the responsiveness of communication between a main microcomputer and a sub microcomputer is improved. The vehicle display device is equipped with a main microcomputer that generates information data and a sub microcomputer that generates an image to be displayed on a display element on the basis of the information data. Between the main microcomputer and the sub microcomputer, at least a signal line for data transmission and a signal line for chip select signal transmission are connected so as to allow communication between the main microcomputer and the sub microcomputer. The vehicle display device synchronizes a first timer counter counted by the main microcomputer and a second timer counter counted by the sub microcomputer, in response to the tip select signal transmitted to the sub microcomputer by the main microcomputer.Type: ApplicationFiled: April 13, 2017Publication date: April 11, 2019Applicant: NIPPON SEIKI CO., LTD.Inventors: Yusuke OHARA, Yutaka KANEKO
-
Patent number: 10229594Abstract: The present invention suppresses movement of the line of sight of a user, reports the degree of potential risk, and contributes to the safe operation of a vehicle. A vicinity-monitoring unit detects a specific object in the vicinity of the vehicle. A display unit displays a mark image, which is visible to the user and is disposed continuously or intermittently on a trajectory, in a manner so as to surround the specific object at least partially. A control unit calculates the risk potential in relation to the specific object and alters, in accordance with the calculated risk potential, the line density of the mark image disposed on the trajectory.Type: GrantFiled: March 13, 2015Date of Patent: March 12, 2019Assignee: Nippon Seiki Co., Ltd.Inventor: Takashi Nakamura
-
Publication number: 20190049729Abstract: Provided is a display device for a vehicle that can rapidly execute preparation completion for display of vehicle information. The display device for a vehicle is provided with a processing unit, a display, and a rotational drive unit that can rotate a reflector on a prescribed axis. The processing unit includes an estimating unit that estimates planned start of the vehicle by a crew, and when the vehicle is planned to be started, the angle of rotation of the rotational drive unit moves from an initial angle corresponding to an initial position (position of point of origin) of the reflector to a first intermediate angle (first stopping position) between the initial angle and a final angle corresponding to the normal operating position of the reflector. After the vehicle has been actually started, the angle of rotation of the rotational drive unit moves to a final angle from the first intermediate angle.Type: ApplicationFiled: March 9, 2017Publication date: February 14, 2019Applicant: NIPPON SEIKI CO., LTD.Inventors: Kazuki HONMA, Yuki MASUYA
-
Publication number: 20190025582Abstract: The present invention displays multiple images at different locations in the depth direction, while suppressing a decline in display quality, using projected light emitted from a single projector. A projector 20 emits first projection light L1 and second projection light L2 that have a first projection distance P1. A projection distance lengthening unit 251 having a negative refractive power is positioned along the path of the first projection light L1 between the projector 20 and a first screen 23, and causes an image to be formed on the first screen 23 by lengthening the projection distance P of the first projection light L1. A projection distance shortening unit 252 having a positive refractive power is positioned along the path of the second projection light L2 between the projector 20 and a second screen 24, and causes an image to be formed on the second screen 24 by lengthening the projection distance P of the second projection light L2.Type: ApplicationFiled: February 2, 2017Publication date: January 24, 2019Applicant: NIPPON SEIKI CO., LTD.Inventors: Kazuo MOROHASHI, Megumi SATO
-
Patent number: 10185152Abstract: A vehicle display device includes: a viewpoint position acquisition unit acquiring a user viewpoint position of a user seated in a driver seat of a vehicle; a forward information acquisition unit acquiring forward information of the vehicle; an image generation unit generating an image obtained by reflecting the forward information included within a prescribed area among the forward information acquired by the forward information acquisition unit; an image display unit having a display surface capable of displaying the image generated; and a projection unit projecting the image toward a vehicle's translucent member such that a virtual image is visible to the user. The image generation unit determines the position and the size of a first image element to be displayed, among image elements included in the generated image, on the display surface, according to the user viewpoint position in the vertical direction acquired by the viewpoint position acquisition unit.Type: GrantFiled: July 26, 2016Date of Patent: January 22, 2019Assignee: Nippon Seiki Co., Ltd.Inventor: Ayako Yamamura
-
Patent number: 10162176Abstract: Provided is a head-up display device with which it is possible to display an image easily recognized by a user. A display for a display mechanism in the head-up display device includes: a light source unit capable of generating light that is the origin of a scanning line; a scan unit for scanning light in a first direction and in a second direction using a first scan element and a second scan element, respectively; a processing unit for generating a first drive signal having a frequency that matches the resonance frequency of the first scan element; and a drive unit for executing a resonance mode that is based on the first drive signal. The processing unit generates a second drive signal having a variable display waveform that is dependent on the resonance frequency, fixed first non-display waveforms that are not dependent on the resonance frequency, and a variable second non-display waveform that is dependent on the resonance frequency.Type: GrantFiled: December 22, 2015Date of Patent: December 25, 2018Assignee: Nippon Seiki Co., Ltd.Inventors: Yasuhiro Yamakawa, Makoto Hada
-
Publication number: 20180364474Abstract: Provided is a display device capable of reliably moving a micromirror to a parking position when operation is stopped. A head-up display device drives a DMD element on the basis of electric power from a battery power supply. The head-up display device is provided with: a DMD controller for performing control of the DMD element on the basis of the electric power from the battery power supply; a voltage monitoring circuit for monitoring the voltage of the battery power supply; and a backup power supply for supplying power to the DMD controller as a backup of the battery power supply. When the voltage of the battery power supply which has been monitored by the voltage monitoring circuit falls to or below a threshold value, the DMD controller moves the DMD element to the parking position on the basis of the electric power from the backup power supply.Type: ApplicationFiled: December 9, 2016Publication date: December 20, 2018Applicant: Nippon Seiki Co., Ltd.Inventors: Kazuki HONMA, Makoto HADA
-
Publication number: 20180356630Abstract: In this head-up display, which is capable of displaying virtual images having different display distances, visibility of the virtual images is ensured even when the position of the point of view changes. An imaginary first virtual image display surface, which is capable of displaying a first virtual image on a surface, and an imaginary second virtual image display surface, which is tilted farther toward the horizontal direction than the first virtual image display surface in a position so that at least a part of the imaginary second virtual image display surface is farther from a viewer than the first virtual image display surface, and which is capable of displaying a second virtual image on a surface, are generated. In accordance with a viewpoint position 300 of the viewer, the displays of the first virtual image and/or the second virtual image are changed so that the first virtual image and the second virtual image do not overlap.Type: ApplicationFiled: November 11, 2016Publication date: December 13, 2018Applicant: NIPPON SEIKI CO., LTD.Inventor: Yuki MASUYA
-
Patent number: 10147395Abstract: There has been room for improvement in terms of increasing the life of display elements which have occurrences of irreversible bright point defects and black point defects and shortened lives of display elements when DMDs, which are reflective display devices, are used in high temperature environments such as being installed in vehicles. In the present invention, a display control means displays a display image in display elements. An illumination control means drives various illumination means in each subframe into which a frame of the display image is temporally divided, by a field sequential system.Type: GrantFiled: April 16, 2012Date of Patent: December 4, 2018Assignee: NIPPON SEIKI CO., LTD.Inventors: Makoto Hada, Yuichi Takahashi
-
Patent number: 10139620Abstract: Provided is a head-up display capable of displaying a plurality of virtual images presented at different distances while increasing the design flexibility in the display device for creating the virtual images. The head-up display comprises: a first display surface disposed to extend the light path of first image light emitted toward a viewer and a second display surface disposed to make the light path of second image light emitted shorter than that of the first image light; a first concave reflector for reflecting the first image light and the second image light; and a second concave reflector for reflecting the image light reflected from the first concave reflector. The first concave reflector is configured such that the first image light and the second image light intersect with each other in the vertical direction between the first concave reflector and the second concave reflector.Type: GrantFiled: March 14, 2016Date of Patent: November 27, 2018Assignee: NIPPON SEIKI CO., LTD.Inventors: Takashi Yamazoe, Takuro Hirokawa
-
Patent number: 10133161Abstract: A projection display device includes a first substrate on which a red light source is mounted, a second substrate on which a green light source is mounted, a third substrate on which a blue light source is mounted, a housing to which the first through third substrates are attached, an optical member accommodated inside the housing, and a light modulating element; light emitted inside the housing from the red light source, the green light source, and the blue light source being distributed by the optical member, the distributed light being converted to a prescribed display image by the light modulating element, and the light being projected outside the housing. The first through third substrates are made of metal or of filler-containing plastic compounded with a filler having high thermal conductivity, and the housing is made of metal or a filler-containing plastic compounded a filler having high thermal conductivity.Type: GrantFiled: May 13, 2016Date of Patent: November 20, 2018Assignee: Nippon Seiki Co., Ltd.Inventors: Akinori Koiida, Yuichi Takahashi, Takuro Hirokawa, Takayuki Hatano
-
Patent number: 10118489Abstract: This head-up display device according to an embodiment of the present invention is mounted on an instrument panel of a vehicle. A display means that emits display light is contained in a chassis having a light transmissive cover having a curved surface, and the display light emitted by the display means is output from the light transmissive cover. The curved surface of the light transmissive cover is curved so that the side on the front side of the vehicle is lower than the side on the back side of the vehicle, and that the curved surface is inclined toward the left-right direction of the vehicle so that a corner of the curved surface is lowest.Type: GrantFiled: November 12, 2015Date of Patent: November 6, 2018Assignee: Nippon Seiki Co., Ltd.Inventors: Genichiro Sato, Takanori Shigeno, Hiroyuki Furusawa
-
Patent number: 10120189Abstract: The objective of the present invention is to provide a heads-up display device able to efficiently orient image light towards a viewer by means of a simple configuration. The heads-up display device is provided with: a projection unit that emits projection light depicting a display image; a first reflection unit and second reflection unit that reflect the projection light exiting the projection unit towards a transmissive screen; and the transmissive screen that outputs image light towards an observer by transmitting/scattering the projection light. By adjusting the angle of the light axis of the projection light entering the transmissive screen by rotating the first reflection unit and second reflection unit, the angle of the image light exiting the transmissive screen is adjusted.Type: GrantFiled: May 29, 2015Date of Patent: November 6, 2018Assignee: Nippon Seiki Co., Ltd.Inventors: Maiko Saito, Yuichi Takahashi, Takuro Hirokawa, Takashi Yamazoe, Kazuo Morohashi
-
Patent number: 10114218Abstract: The problem addressed by the present invention is to provide a head up display device capable of counteracting sunlight without using a shutter or a reflection type polarizing film. A first concave mirror has a curvature to cause the reflected display light to intersect vertically before reaching a second mirror, and a second concave mirror serves to reflect the received display light. A case is provided with a first shield and a second shield extending near an intersecting point to sandwich a light path between the first and second concave mirrors. The first and second shields can block external light entering into the case from outside the case and proceeding toward the first concave mirror after being reflected from the second concave mirror.Type: GrantFiled: November 11, 2015Date of Patent: October 30, 2018Assignee: NIPPON SEIKI CO., LTD.Inventors: Takashi Yamazoe, Takuro Hirokawa
-
Patent number: 10094968Abstract: A vehicular display device includes a facing member having a hole formed therein, an edge-light light guide that guides lights emitted from LEDs, a diffusion member that diffuses light leaking from the edge-light light guide, and a convex light guide having a main part interposed between the diffusion member and the facing member, and a projecting portion projecting into the hole. The lights emitted from the LEDs are guided to the edge-light light guide. The lights guided to the edge-light light guide are diffused by the diffusion member to enter the convex light guide, and leaves from the projecting portion.Type: GrantFiled: June 28, 2017Date of Patent: October 9, 2018Assignees: NIPPON SEIKI CO., LTD., HONDA MOTOR CO., LTD.Inventors: Kazuhiro Kominato, Atsushi Arisa