JP2006208687A - Video control system for head-mounted display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily control video display of an HMD for each appreciating person. <P>SOLUTION: Disclosed is the video control system for the HMD constituted by connecting the HMD equipped with a video display device for displaying video in front of the eyes and a video control device for controlling video display characteristics of the HMD by wire or wireless. The HMD is equipped with a storage means previously stored with data of the video display characteristics, a display driving means of changing the display characteristics of the video display means based upon the data of the video display characteristics previously stored in the storage means, and a control means of controlling the storage means, and the video control device is equipped with a display characteristic changing means of transmitting a change indication signal indicating change of the data of the video display characteristics to the control means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image adjustment system for a head-mounted display, and more particularly, an image of a head-mounted display that adjusts a display characteristic of an image displayed on the head-mounted display by inputting a value of an image display characteristic set by an image adjustment device. Relates to the regulation system.

  Conventionally, a head-mounted display (hereinafter simply referred to as “HMD”), a head-up display, or the like in which a small display is mounted on a mounting tool suspended from the head or the like and an image is displayed in front of the eyes is known. . Since the HMD can set the imaging distance far, it is possible to display a large screen in front of the eyes without selecting a space. In this respect, it is also used for watching movies. In addition, since the display is mounted on a mounting tool that can be suspended from the head or the like, both hands are free. In this regard, it is also used in the field of medical care and factories as means for displaying auxiliary information such as work instructions. In this way, HMD is steadily spreading.

  In recent years, HMDs have also been developed in which optical elements are arranged on a wearing tool having the shape of glasses, and an image superimposed on external light is displayed in front of the eyes. Such an external light transmissive HMD is characterized in that it allows easy use of the image in front of the eye and the visual field of the external world. In this respect, it is greatly utilized as a second eye for the purpose of acquiring visual information for visually impaired persons such as amblyopia. For example, the mounting tool is provided with a small imaging device that captures an image in the viewing direction, and the image captured by the small imaging device is displayed in front of the eyes.

By the way, when used by a person with visual impairment in this way, it is necessary to individually adjust the color, brightness, contrast, etc. of the display according to the eye symptoms and the type of eye disease of the viewer. . In addition, the video display may be changed depending on personal preference without being limited thereto. On the other hand, at the shipping stage in the manufacturing stage, the display color and the like are set uniformly (default), and depending on the viewer, a suitable image may not be obtained. For example, when the identification of a specific color is weak due to color weakness or the like, there is a possibility that the default setting image at the shipping stage cannot satisfy the viewer's needs.
On the other hand, it is also conceivable that the video display is deteriorated or malfunctioned due to the failure of the HMD or aging. In particular, a person with visual impairment may have a serious problem because it is difficult to determine whether the video display defect is due to his own visual acuity deterioration or eye disease progression or HMD degradation.

  In order to solve such a problem, when a display adjusting screw or the like is provided in the HMD, it is possible to set a display state suitable for the viewer by adjusting. However, in general, the HMD tends to be reduced in size and weight in order to pursue wearability (portability) and wearability, and each device is configured precisely and needs to be configured as such. For this reason, there is a possibility that the display adjusting screw or the like is very small or the image processing is completely digitized, and it becomes difficult for the viewer himself to adjust the image display.

  An object of the present invention is to provide a video adjustment system that can easily adjust video display different for each viewer.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a wired connection between a head mounted display including an image display device that displays an image in front of the eyes and an image adjustment device that adjusts an image display characteristic of the head mounted display. Or a wirelessly connected video adjustment system for a head-mounted display, wherein the head-mounted display includes storage means for storing and rewriting video display characteristic data, and video display characteristics stored in the storage means Control means for outputting a conversion instruction signal for instructing conversion of a video signal based on data; and display driving means for converting the video signal based on the instruction signal output from the control means and outputting it to the video display device; The image adjusting device comprises: display characteristic data input means for inputting a value of new display characteristic data; and The control means comprises a display characteristic changing means for outputting a new display characteristic data value input by the display characteristic data input means and a rewrite instruction signal for instructing rewriting to the new display characteristic data. To do.

  According to a second aspect of the present invention, in the video adjustment system for a head-mounted display according to the first aspect, the video adjustment device further includes individual information storage means for storing the value of the new display characteristic data, The display characteristic changing means stores the value of the new display characteristic data in the individual information storage means.

  According to a third aspect of the present invention, in the video adjustment system for a head mounted display according to the second aspect, the head mounted display includes identification information output means for outputting identification information related to the head mounted display, and the individual information The storage means stores the value of the new display characteristic data and the identification information in association with each other.

  According to a fourth aspect of the present invention, in the video adjustment system for a head mounted display according to any one of the first to third aspects, the video adjustment device is a monitor for an adjustment device that displays parameters of the display characteristic data. Is further provided.

The invention according to claim 5 is the image adjustment system for a head mounted display according to any one of claims 1 to 4,
The head mounted display further includes an imaging unit that captures an image in a line-of-sight direction,
The video imaged by the imaging means is output to the adjusting device monitor.

  According to a sixth aspect of the present invention, in the video adjustment system for the head-mounted display according to any one of the first to fifth aspects, the video display device includes a video display unit for guiding an optical image in front of the eyes by an optical unit, and the video display. The image display means comprises an image projection means for projecting an image on the means, and the image display means is provided on a support base capable of transmitting external light.

  According to the first aspect of the present invention, the display characteristic changing means of the video adjusting apparatus instructs the value of the new display characteristic data inputted by the display characteristic data input means and the rewriting to the new display characteristic data. By outputting the rewrite instruction signal to the control unit of the head mounted display, the video data output from the display driving unit to the video display device can be converted, and the video characteristics of the video can be adjusted. For this reason, it becomes possible for the viewer to individually adjust the video display characteristics of the head mounted display. In addition, since the video display device can be connected in a wired or wireless manner and the video display characteristics can be adjusted from the vicinity of the viewer or remotely, a third party can also perform the adjustment.

  According to a second aspect of the present invention, in the first aspect of the present invention, the video adjustment device further includes individual information storage means for storing a value of the new display characteristic data, and the display characteristic changing means. The individual information storage means stores the value of the new display characteristic data, so that it is possible to record a decrease in the visual acuity of the viewer or the progression of eye disease.

  According to a third aspect of the present invention, in the video adjustment system for a head mounted display according to the second aspect, the head information display includes an identification information output unit that outputs identification information about the head mounted display, and the individual information storage unit includes the identification information output unit. By storing the new display characteristic data value and the identification information in association with each other, the display characteristic data can be called only by receiving the identification number by the video adjusting device.

  According to a fourth aspect of the present invention, in the video adjustment system for a head mounted display according to any one of the first to third aspects, the video adjustment device is for an adjustment device that displays parameters of display characteristic data. Since the monitor is further provided, the video characteristics can be easily adjusted while visually recognizing the parameters.

  According to the fifth aspect of the present invention, in the video adjustment system for the head mounted display according to any one of the first to fourth aspects, the imaging unit further includes an imaging unit that captures an image in a line-of-sight direction. Since the adjusted image is output to the monitor for the adjusting device, it is possible to check the actual image of the viewer or the image close to the actual image when the adjuster adjusts with the image adjusting device. It becomes. Thus, for example, when the object in the viewer's line-of-sight direction has a hue or the like that is not suitable for adjusting various image characteristics such as contrast (for example, gray), the object suitable for adjustment captures the line-of-sight direction. It becomes possible.

  According to a sixth aspect of the present invention, in the video adjustment system for the head-mounted display according to any one of the first to fifth aspects, the video display device includes a video display means for guiding an optical image in front of the eyes by an optical means, and a video display. Since the image display means is provided on a support base capable of transmitting external light, the image displayed on the image display means can be displayed by simply shifting the viewer's line of sight. And the outside world can be visually recognized. Therefore, in particular, when the viewer himself / herself operates the video adjustment device to adjust the video display characteristics, both the operation and the display can be easily observed, and simple video display characteristics can be performed. .

Next, the best mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing the overall configuration of an image adjustment system of the HMD 2 to which the present invention is applied. The video adjustment system 1 allows the HMD 2 and the video adjustment device 5 to be connected to each other via a wired connection to exchange various data. The HMD 2 is roughly divided into a display unit 3 and a control unit 4.

The display unit 3 is provided with a small video display device 9 as a video display unit and a CCD (Charge Coupled Devise) camera 13 as an imaging unit that images the direction of the viewer's line of sight on a mounting tool that can be mounted on the head. Is done.
The control unit 4 is a control system for inputting / outputting video signals and various signals to / from the display unit 3 and the video adjustment device 5 and changing the video display and display characteristics of the video display device 9.
The video adjusting device 5 inputs / outputs video signals and various signals to / from the control unit 4 and changes the video display and display characteristics of the video display device 9.
Below, the concrete structure of each apparatus is shown.

  2 and 3 show the configuration of the display unit 3. In FIG. 2, the display unit 3 includes a frame 8 provided with a nose pad 6 and a temple 7 and a spectacle lens 14 in the same manner as normal glasses. A video display device 9 is provided at the upper end of the frame 8 and the spectacle lens. The video display device 9 further includes a video projection device 10 and an eyepiece optical system 11, and one end of the eyepiece optical system 11 is joined to the video projection device, and both are integrated. The spectacle lens 14 is formed with a concave portion having substantially the same shape as that of the eyepiece optical system 11 in the vertical direction, and the spectacle lens 14 and the eyepiece optical system 11 are fitted in this concave portion so that the surface directions thereof coincide with each other without any step. A CCD camera 13 is provided on the side surface of the video display device 9 on the bridge 12 side, and outputs a video signal to the control unit 4 via the cable 15. In the first embodiment, a small CCD camera is applied as an imaging unit. However, the present invention is not limited to this as long as it can digitize and output an optical image, and imaging using a CMOS sensor and an artificial retina LSI is possible. Equipment can also be applied.

  FIG. 3 is a side sectional view showing a section from the left side of the image projection apparatus 10 and the eyepiece optical system 11. The video projection device 10 converts an electronic signal transmitted from the control unit 4 into a video light beam via a cable 15 and irradiates the eyepiece optical system 11 with the video. Inside a housing 16 serving as a main body of the video projector 10, a transmissive liquid crystal display 17 that generates video from a video signal transmitted from the control unit 4, an LED (Light Emitting Diode) 18 and an LED 18 that are light sources. The illumination optical system 19 for guiding the irradiation light from the entire surface of the liquid crystal display 17 is provided.

  The eyepiece optical system 11 further includes a prism 20 and a hologram element 21. The upper end portion of the prism 20 is formed thick in the front direction, and includes a daylighting portion having a wedge shape having a wide upper end portion so that the image light emitted from the liquid crystal display 17 can be easily taken. The image emitted from the LED 18 and the liquid crystal display 17 is taken from the daylighting unit and guided while being reflected inside the prism 20. The hologram element 21 is a hologram film sandwiched between the lower end portion of the prism 20 and the concave portion of the spectacle lens 14. By irradiating image light guided through the prism 20, a virtual image is formed on the eye E by the interference of the light. The HMD 2 in the present embodiment applies an external light transmissive HMD that displays a holographic image in a superimposed manner on the viewer's field of view by the action of the video projection device 10 and the eyepiece optical system 11 and the like.

  In the present embodiment, the video display device 9 is provided on only one of the spectacle lenses 14, but as shown in FIG. 4, both the spectacle lenses are provided to enable binocular observation. Alternatively, the video displayed on the left and right video display devices may be different.

  Next, the control unit 4 will be described. FIG. 5 is a block diagram showing the configuration of the control unit 4. The control unit 4 includes a display driving device 26, an A / D converter 27, an external output terminal 28, an external input terminal 29, an arithmetic processing unit C 30 and a power supply unit 31.

The display driving device 26 outputs the video signal output from the arithmetic processing unit C30 to the video display device 9 of the display unit 3. Video data for each pixel output from the arithmetic processing unit C30 and video data reflecting the display characteristics by performing arithmetic processing on the offset value, which is display state data of the video display device 9 stored in advance in the memory 38 described later. And output to the video display device 9.
Here, the display state data is additional data to be calculated with the video data, and is displayed on the video display device 9 such as contrast data, luminance data (including luminance range data such as upper and lower luminance limits), and the like. This means the zoom ratio (display angle-of-view data such as enlargement and reduction) of the video to be recorded, channel data of each RGB signal, and the like. That is, the video data generated from the video data output from the arithmetic processing unit C30 and the offset values of the contrast data, the luminance data, and the RGB channel data are output to the video display device 9. Thus, the contrast, brightness, hue, gradation inversion, and the like of the image can be performed.

  More specifically, it is assumed that the data for each pixel in each RGB channel has a gradation of 0 to 255 levels. For example, when the RGB gradation data in a specific pixel of video data is 100, 100, and 100, respectively, if the offset value of the R channel is +50 and the offset values of G and B are 0, display drive The device 26 generates video data in which the RGB gradation values of the video data are 150, 100, 100, and displays a video with a stronger red.

The power supply unit 31 is a battery that supplies power to the display unit 3 and the control unit 4.
In the present embodiment, the configuration in which the display unit 3 and the control unit 4 are independent from each other is adopted. However, both may be configured as a single unit, or only the power supply unit 31 may be configured independently. Good.

  The A / D (Analog / Digital) converter 27 samples and quantizes the analog video signal output from the CCD camera 13 and converts the analog video signal into a digital signal that can be processed by the arithmetic processing unit C30. It is. The external output terminal 28 is an I / F (Interface) that outputs video data processed by the arithmetic processing unit C30, various control signals, and the like to the video adjustment device 5. A cable such as USB or IEEE 1394 is connected to the external output terminal 28. Connectable. The external input terminal 29 is an I / F to which various instruction data and video data output from the video adjusting device 5 are input. The input signal is output to the arithmetic processing unit C30.

The arithmetic processing unit C30 includes a CPU 35, a ROM 36, a RAM 37, a memory 38, a DSP 39, and a graphic memory 40 (see FIG. 5). The CPU 35 controls the entire head mounted display including the arithmetic processing unit C30. The ROM 36 stores various programs related to video adjustment using the nonvolatile head mounted display and the video adjustment device 5. The DSP 39 performs video processing on video data acquired by the CCD camera 13 based on a program stored in the ROM 36 and a control signal of the CPU 35 output in accordance with the program. The graphic memory 40 temporarily stores video data generated by the video processing of the DSP 39, and develops a program to function as a work area for video processing and the like.
The RAM 37 temporarily stores various processing data related to the entire processing performed by the arithmetic processing unit C30, and is a volatile semiconductor memory. Various programs are developed and function as a work area.

  The memory 38 is used for recording various data used for arithmetic processing of the arithmetic processing unit C30. An EEPROM (Electrically Erasable Programmable Read Only Memory), a flash memory, a hard disk, or the like can be applied. In the present embodiment, in view of the portability of the HMD, a flash memory that is small, lightweight, resistant to impact, and excellent in the number of data rewrites is applied.

  The memory 38 stores display characteristic data (offset value) for adjusting the display characteristic of the video displayed on the video display device 9. The display driving device 26 accesses the memory 38 in accordance with a control signal output from the CPU 35, calculates the stored display characteristic data and video data, and outputs the result to the video display device 9. Of course, the display characteristic data can be stored not only in the memory 38 but also in the ROM 36. Since the display characteristic data after the change is rewritten based on the display characteristic data change instruction signal output from the video adjusting device 5 described later, a flash memory excellent in erasing and writing of existing unnecessary data is preferable.

Next, the video adjustment device 5 will be described. FIG. 6 is a block diagram showing the configuration of the video adjustment device 5. The video adjustment device 5 includes an external input terminal 45, an external output terminal 46, an input device 54, an adjustment device monitor 51, and an arithmetic processing unit T50.
The external input terminal 45 and the external output terminal 46 are I / Fs corresponding to the external output terminal 28 and the external input terminal 29 of the control unit 4 of the HMD 2, respectively, and input / output various instruction signals and video data. It is.

The adjusting device monitor 51 divides and displays various images based on a control signal from the arithmetic processing unit T50 described later. FIG. 7 shows a screen of the adjustment device monitor 51. Data W2 relating to individual viewers such as display characteristic parameters W1 indicating various display characteristics such as contrast, luminance, and RGB channels, viewer (customer) ID number, HMD serial number, accumulated usage time, and repair history. The camera image W3 acquired by the CCD camera 13 of the display unit 3 and various guidance instruction images W4 to be displayed on the image display device 9 are displayed.
In the display characteristic parameter W1, the level value is divided for each element of the display characteristic data, the default value at the time of factory shipment of the HMD is “0”, and the upper and lower levels are shown in four stages. In addition, the ◯ mark displayed on each element indicates the current setting.

The input device 54 outputs an input signal to the arithmetic processing unit T50 by an operation of the operator of the video adjusting device 5. A signal for changing each element value of the display characteristic data, a signal for determining the setting after the change, and the like are transmitted to the CPU 55.
Of course, the adjusting device monitor 51 and the input device 54 may be integrated into a touch panel type.

The arithmetic processing unit T50 includes a CPU 55, a ROM 56, a RAM 57, a memory 58, a DSP 59, and a graphic memory 60. The CPU 55 performs overall control of the video display device 9 according to a program. The ROM 56 is a non-volatile semiconductor memory in which an operation program for the CPU 55 and an application program for transmitting a display characteristic data change signal are stored in advance.
As will be described later, the CPU 55 functions as a determination unit that determines the limit adjustment value of the display characteristic data based on a predetermined condition.

  The RAM 57 is a non-volatile semiconductor memory that temporarily stores the results of arithmetic processing related to overall control executed by the CPU 55 and the like. In addition, the program is expanded and functions as a work area.

  The memory 58 stores data used for calculation in the calculation processing unit T50. Personal data regarding the viewer (viewer ID, serial number of HMD, date of purchase, repair history, visual acuity, symptoms such as eye disease, and display characteristic data of HMD, etc.) function as a database stored in advance. Further, when the display characteristic data is changed, the display characteristic data after the change is stored. As the memory 58, an EEPROM, a flash memory, a hard disk, or the like can be applied. However, in the present embodiment, in view of the versatility of the video adjustment device 5 and the function as a database of personal information, the storage capacity is excellent. A hard disk is applied.

  The DSP 59 performs various kinds of video processing on the video input from the external input terminal 45 and the guidance instruction video displayed on the adjustment device monitor 51 and outputs the processed video to the adjustment device monitor 51. The graphic memory 60 temporarily stores the result of the video processing in the DSP 59 and functions as a work area by developing a video processing program.

In addition, the power supply unit 52 supplies power to the video adjustment device 5. As shown in FIG. 1, the power supply unit 52 includes a key-type switch 61 as a power supply changeover switch and inserts a key 62 to rotate left and right. By doing so, on / off of power is controlled. The key switch 62 may be configured to have both personal information protection control means or power switching control and personal information protection functions. In other words, the adjustment device monitor 51 is configured to display the viewer's personal information, but when this display is performed, the personal information is displayed by further rotating the key switch 62 to the private (PRIVATE) position. It is good also as a structure to be made.
It should be noted that when a power supply type communication cable such as a USB cable is used for connection with the HMD 2, it is naturally possible to adopt a configuration in which power is also supplied to the HMD 2.

  The operation of the video adjustment system of the HMD 2 having the above configuration will be described using the flowchart shown in FIG.

  When adjusting the image of the head mounted display, as shown in FIG. 9, the viewer M1 is wearing the display unit 3, and the image adjusting device 5 and the adjuster M2 are positioned so as to face the viewer M1. is doing.

  When the external input terminal 29 and the external output terminal 46 of the head mounted display are connected while the head mounted display and the image adjustment device 5 are activated, the activation command of the image adjustment program is transmitted from the CPU 55 to the CPU 35. The CPU 35 accesses the ROM 36, reads the video adjustment program, and starts the video adjustment program (step S1).

  Simultaneously with the start of the video adjustment program, the CPU 35 sends the video adjustment program start confirmation command, the HMD serial number data, and the video data acquired by the CCD camera 13 to the CPU 55 via the external output terminal 28 and the external output terminal 46. (Step S2).

When the CPU 55 receives the trajectory confirmation command, personal information data, and video data, it accesses the memory 58 and personal information data corresponding to the serial number data (viewer ID, purchase date of HMD, repair history, viewer sight, viewer) The type and symptom of eye disease and the like, and display characteristic data of HMD) are read and displayed on the adjustment device monitor 51 as data W2 relating to the individual viewer (step S3). Further, the video data acquired from the CCD camera 13 is output to the DSP 59 and displayed as the camera video W3 on the adjusting device monitor 51 (step S4). Further, the ROM 56 is accessed to read the display characteristic parameter display data, and the calculation for reflecting each value of the received display characteristic data is performed, and the display characteristic parameter W1 indicating the present HMD display characteristic is monitored for the adjusting device. 51 is displayed (step S5).
Since the personal information data is specific personal information, the personal information is displayed on the adjusting device monitor 51 after the viewer himself / herself inputs a password unique to the viewer. It is good. Alternatively, as described above, the key type switch 61 is adopted (see FIG. 1), and by operating up to the position of the private (see FIG. 1), the personal information is limited to be displayed on W2. Also good.
Thus, the privacy of the viewer can be protected when the video adjusting device 5 is not stolen or disclosure of human information is not desired.

The adjuster M2 considers the visual appearance and display characteristics of the viewer M1 (refer to FIG. 9) obtained by the inquiry and the like, and various information displayed on the monitor 51 for adjusting device, The display characteristic data change instruction data is transmitted to the CPU 55 via the input device 54.

  The CPU 55 that has received the display characteristic data change instruction data from the input device 54 determines the magnitude of the value of each parameter in the change instruction data (step S6). Here, if the change instruction data is not the maximum value or the minimum value of each parameter (or does not exceed a predetermined data value determined in advance) (step S6: NO), the CPU 55 sends the change instruction data to the CPU 35. Transmit (step S7).

  The CPU 35 that has received the change instruction data accesses the memory 38 and rewrites the display characteristic data (offset value) that has been set so far (step S8).

  The display driving device 26 calculates the video data output from the DSP 39 and the rewritten offset value based on the control signal from the CPU 35, and outputs the video data whose display characteristics are changed to the video display device 9. The video display device 9 displays the video whose display characteristics have been changed (step S9).

If the change instruction data is the maximum value or the minimum value of each parameter (or exceeds a predetermined data value determined in advance) in step S6 (step S6: YES), the CPU 55 causes the DSP 59 to A guidance instruction video display instruction command is transmitted (step S10).
The DSP 59 accesses the ROM 56, reads pre-stored guidance instruction data, and outputs it to the CPU 55. The CPU 55 transmits guidance instruction data to the adjustment device monitor 51 to display a guidance instruction video (superimpose) W4 indicating that “no further adjustment is possible” (step S11). At the same time, the guidance instruction data and the change instruction data are transmitted to the CPU 35 (step S12).

  The CPU 35 that has received the guidance instruction data and the change instruction data (step S13) accesses the memory 38 and rewrites the display characteristic data (offset value) that has been set so far (step S14).

  The display driving device 26 calculates the video data output from the DSP 39 and the rewritten offset value based on the control signal from the CPU 35, and outputs the video data whose display characteristics have changed to the video display device 9. The video display device 9 displays the video whose display characteristics have been changed (step S9).

  In addition, when receiving the end command via the input device 54, the CPU 55 transmits the change instruction data to the memory 58 to rewrite the display characteristic data, and rewrite the repair history data and the like (step S15).

  Thereafter, the CPU 55 transmits a video adjustment program end command to the CPU 35, and the CPU 35 receiving this command ends the video adjustment program and causes the video display device 9 to perform normal display (step S16).

  As described above, according to the HMD video adjustment system according to the present embodiment, the viewer M1 can check the video whose display characteristics have actually changed, so that more practical video adjustment can be performed. .

  In addition, instantaneous and more detailed video adjustment can be performed while directly interacting with the viewer M1. For this reason, even in the case where a relatively extreme display characteristic is required, such as a person with visual impairment, the display characteristic is easily adjusted without requiring expert knowledge of the adjuster M2. It becomes possible.

  In particular, when an external light transmissive configuration in which an image is superimposed on external light is used as the display unit 3 as in the HMD in the present embodiment, the viewer M1 can adjust the image alone. When the degree of change in the display characteristic data exceeds a certain level, the adjustment limit is automatically determined and a guidance instruction image is displayed. Therefore, the display on the adjustment device monitor 51 is confirmed due to amblyopia or the like. Even if it is difficult, it is also possible to operate the input device 54 only by touching the hand. In addition, since such a guidance instruction image is also displayed on the adjustment device monitor 51 of the image adjustment device 5, even if the adjuster M2 is weak in machine operation, it is possible to easily adjust the image. .

  Further, the contents of the change instruction data, that is, offset values such as newly set contrast data and RGB channel data are stored in the memory 58 of the video adjusting device 5, so that a database for each viewer is created. It becomes possible. By analyzing the contents of this database, it is possible to determine or estimate the degree of progression of the viewer's visual acuity, eye disease, etc., the deterioration of the HMD 2 over time, or the failure. Furthermore, it is possible to predict a certain specified value (for example, average progress status) relating to the progression of eye disease from the database created in this way, and this prediction data is stored in advance in the memory 58 or the like. When the progression of the eye disease of the viewer is equal to or greater than this specified value, a doctor's examination can be urged by displaying a warning to that effect (see FIG. 10) on the adjusting device monitor 51 and the video display device 9.

  In the present embodiment, the HMD and the image adjustment device 5 are configured to use the image adjustment system in a form in which the viewer M1 and the adjuster M2 face each other. However, the external output terminals 28 and 46 and the external input terminal In place of or in addition to 29 and 45, the I / F can be remotely transmitted via a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like using an external network connection device such as a NIC (Network Interface Card). It is good also as a structure which enables image | video adjustment from. As a result, the viewer can adjust the image while staying at home or the like.

  The HMD video adjustment system to which the present invention is applied has been described above, but the present invention is not limited to these various examples.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic which showed the whole structure in the best form for implementing this invention. It is the schematic which showed the whole structure of the display part in the best form for implementing this invention. It is the sectional side view which showed the structure of the display part in the best form for implementing this invention. It is the schematic which showed the whole structure of the other example of the display part in the best form for implementing this invention. It is the block diagram which showed the structure of the control part in the best form for implementing this invention. It is the block diagram which showed the structure of the image | video adjustment apparatus in the best form for implementing this invention. It is the schematic which showed the display screen of the monitor for adjustment of the image | video adjustment apparatus in the best form for implementing this invention. It is the flowchart which showed operation | movement of the image | video adjustment system in the best form for implementing this invention. It is the schematic diagram which showed the usage example of the image | video adjustment system in the best form for implementing this invention. It is the schematic diagram which showed the guidance display example of the monitor for adjustment apparatuses in the best form for implementing this invention.

Explanation of symbols

1 Video adjustment system 2 HMD
DESCRIPTION OF SYMBOLS 3 Display part 4 Control part 5 Image | video adjustment apparatus 6 Nose pad 7 Temple 8 Frame 9 Image display apparatus 10 Image projection apparatus 11 Eyepiece optical system 12 Bridge 13 CCD camera 14 Eyeglass lens 15 Cable 16 Case 17 Liquid crystal display 18 LED
19 Illumination Optical System 20 Prism 21 Hologram Element 26 Display Drive Device 27 A / D Converter 28 External Output Terminal 29 External Input Terminal C30 Arithmetic Processing Unit 35 CPU
36 ROM
37 RAM
38 Memory 39 DSP
40 graphic memory 45 external input terminal 46 external output terminal T50 arithmetic processing unit 51 controller monitor 52 power supply unit 54 input device 55 CPU
56 ROM
57 RAM
58 Memory 59 DSP
60 Graphic memory 61 Key type switch 62 Key W1 Divided video W2 for display characteristic parameter Divided video W3 for individual information W3 Divided video for camera video W4 Divided video for guidance instruction video M1 Viewer M2 Adjuster eye E

Claims (6)

An image adjustment system for a head mounted display comprising a head mounted display including an image display device that displays an image in front of the eyes and an image adjustment device that adjusts an image display characteristic of the head mounted display, wired or wirelessly connected. ,
The head mounted display is
Storage means for enabling storage and rewriting of video display characteristic data;
Control means for outputting a conversion instruction signal for instructing conversion of a video signal based on the video display characteristic data stored in the storage means;
Display driving means for converting the video signal based on an instruction signal output from the control means and outputting the converted video signal to the video display device;
The image adjusting device includes:
Display characteristic data input means for inputting values of new display characteristic data;
The control means includes display characteristic changing means for outputting a new display characteristic data value input by the display characteristic data input means and a rewrite instruction signal for instructing rewriting to the new display characteristic data. Head mounted display image adjustment system. The image adjustment system for a head mounted display according to claim 1,
The video adjusting device further includes individual information storage means for storing the value of the new display characteristic data,
The image adjustment system for a head mounted display, wherein the display characteristic changing unit stores the value of the new display characteristic data in the individual information storage unit. The image adjustment system for a head mounted display according to claim 2,
The head mounted display includes identification information output means for outputting identification information relating to the head mounted display, and the individual information storage means stores the value of the new display characteristic data and the identification information in association with each other. An image adjustment system for head mounted displays. In the image adjustment system of the head mounted display according to any one of claims 1 to 3,
The image adjustment system according to claim 1, further comprising an adjustment device monitor for displaying a parameter of the display characteristic data. In the image adjustment system of the head mounted display according to any one of claims 1 to 4,
The head mounted display further includes an imaging unit that captures an image in a line-of-sight direction,
An image adjustment system for a head-mounted display, wherein the image taken by the imaging means is output to the adjustment device monitor. In the image adjustment system of the head mounted display according to claim 1,
The video display device comprises video display means for guiding an optical image in front of the eyes by optical means, and video projection means for projecting an image on the video display means. The video display means is a support base capable of transmitting external light. An image adjustment system for a head-mounted display, which is provided on the top.

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