WO2016024579A1 - Dispositif de traitement d'image, dispositif d'affichage, procédé de traitement d'image, et programme de traitement d'image - Google Patents

Dispositif de traitement d'image, dispositif d'affichage, procédé de traitement d'image, et programme de traitement d'image Download PDF

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Publication number
WO2016024579A1
WO2016024579A1 PCT/JP2015/072711 JP2015072711W WO2016024579A1 WO 2016024579 A1 WO2016024579 A1 WO 2016024579A1 JP 2015072711 W JP2015072711 W JP 2015072711W WO 2016024579 A1 WO2016024579 A1 WO 2016024579A1
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Prior art keywords
image
age
information
display
control
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PCT/JP2015/072711
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English (en)
Japanese (ja)
Inventor
邦明 荒金
健二 増田
松村　健一
郁文 閑
純 村井
一男 坪田
Original Assignee
大日本印刷株式会社
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Priority claimed from JP2014164587A external-priority patent/JP2016040581A/ja
Application filed by 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority claimed from JP2015158195A external-priority patent/JP6146443B2/ja
Publication of WO2016024579A1 publication Critical patent/WO2016024579A1/fr

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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
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory

Definitions

  • the present invention belongs to the technical field of an image processing device, a display device, an image processing method, and an image processing program. More specifically, the present invention belongs to a technical field of an image processing device, a display device, an image processing method, and a program for the image processing device for protecting the eyes of a user who views a displayed image.
  • Patent Document 1 listed below is an example of a patent document that discloses such an optical component that has such an antiglare effect, is effective in reducing fatigue and preventing eye diseases, and has good visibility.
  • the optical component disclosed in Patent Document 1 light of a specific wavelength (hereinafter, simply referred to as “blue light”, the wavelength is about 400 to 500 nanometers) is reduced, thereby preventing glare.
  • blue light the wavelength is about 400 to 500 nanometers
  • the optical component is configured to reduce blue light irradiated to the eye by attaching it to a display device (or attaching the optical component in a lens shape to spectacles and viewing through the lens). ing.
  • Non-Patent Document 1 and Non-Patent Document 2 research results have been reported that the blue light affects the internal rhythm of a person viewing a liquid crystal display using the LED as a backlight. Has been. Therefore, in this case, the blue light is not always reduced, but it is considered that the on / off of the blue light should be appropriately switched according to the time zone, and the reduction rate in the case of reduction should be switched.
  • the present invention has been made in view of the above problems, and one example of the problem is to maintain and adjust the internal rhythm and the like through vision of a person viewing a display that generates blue light.
  • An image processing device, a display device, an image processing method, and a program for the image processing device are provided.
  • an image information acquisition unit such as a switching control unit that acquires image information corresponding to an image to be displayed on a display unit such as a display, time, date
  • a time information acquisition means such as a time acquisition unit for acquiring time information indicating either the month or the season, and a luminance corresponding to any color component in the acquired image information based on the acquired time information
  • Processing means such as a pixel value update unit that controls to generate display image information and output and display the information on the display means.
  • an invention according to claim 15 acquires the image processing apparatus according to any one of claims 1 to 14 and the display image information, and performs the display. And the display means for displaying an image corresponding to the image information for use.
  • the invention according to claim 16 corresponds to an image to be displayed on the display means in an image processing method executed in an image processing apparatus connected to display means such as a display.
  • An image information acquisition step for acquiring image information a time information acquisition step for acquiring time information indicating any of time, day, month, or season, and a luminance corresponding to any color component in the acquired image information.
  • the invention described in claim 17 is directed to a computer included in an image processing apparatus connected to a display unit such as a display, and displays image information corresponding to an image to be displayed on the display unit.
  • the image information acquisition means to acquire, the time information acquisition means to acquire time information indicating any of time, day, month or season, and the luminance corresponding to any color component in the acquired image information Then, control is performed based on the information, display image information is generated, and it is made to function as processing means for outputting and displaying on the display means.
  • the luminance corresponding to any one of the color components in the image information is controlled based on the time information to display the display image information. Therefore, it is possible to satisfactorily maintain / adjust the internal rhythm and the like of the person who visually recognizes the image corresponding to the display image information.
  • the invention according to claim 2 is the image processing apparatus according to claim 1, wherein the processing means based on the acquired time information, the blue component in the acquired image information
  • the display image information is generated by controlling the luminance corresponding to.
  • the display image information is generated by controlling the luminance corresponding to the blue component in the acquired image information based on the time information. Therefore, it is possible to appropriately maintain / adjust the in-vivo rhythm and the like by appropriately controlling the luminance corresponding to the blue component that is likely to affect the in-vivo rhythm and the like of the person viewing the image.
  • the invention according to claim 3 is the image processing apparatus according to claim 2, wherein the processing means, based on the acquired time information, has the luminance corresponding to the blue component. Therefore, the luminance in the activity time of the person viewing the image displayed on the display means corresponding to the display image information is relatively higher than the luminance in the time other than the activity time. To display the image information for display.
  • the luminance corresponding to the blue component in the activity time of the person viewing the image is higher than the luminance at other times. Since it is controlled to be high, the internal rhythm during the active time and other times can be maintained / adjusted satisfactorily.
  • the invention according to claim 4 is the image processing apparatus according to any one of claims 1 to 3, wherein the processing means is indicated by the acquired time information.
  • the display image information is generated by controlling the luminance based on at least one of the sunrise time and sunset time.
  • a color component based on at least one of sunrise time or sunset time is generated by controlling the brightness of the image, so by displaying the image of the color component in accordance with the change in the daily rhythm of the person viewing the image, the internal rhythm and the like can be better displayed. Can be maintained / adjusted.
  • the invention according to claim 5 is the image processing apparatus according to any one of claims 1 to 4, wherein the control mode of the luminance in the processing means is specified. And a processing unit for generating the display image information by controlling the luminance based on the acquired time information and the specified control mode. Configured to do.
  • the brightness control mode specified by the specifying means and the time information Since the display image information is generated by controlling the luminance of the color component based on the luminance, the luminance can be controlled according to the preference of the person viewing the image, and the body rhythm is maintained / adjusted according to the person concerned. be able to.
  • the invention according to claim 6 is the image processing apparatus according to claim 5, wherein, when the control mode is designated, the display means changes the time change of the luminance to be controlled.
  • the designating means is used for designating the control mode by changing the shape of part or all of the displayed graph.
  • the processing means is configured to generate the display image information by controlling the luminance based on the acquired time information and a control mode designated using the graph.
  • the luminance control mode when the luminance control mode is designated, a graph corresponding to the time change of the luminance is displayed. Since the control mode is specified by changing the shape of the part or the whole, the brightness can be easily controlled according to the preference of the person viewing the image, etc., and the body rhythm etc. can be maintained / adjusted according to the person concerned Can do.
  • position information indicating the position of the display means is acquired.
  • Position information acquisition means such as a position acquisition unit is further provided, and the time information acquisition means is configured to acquire the time information corresponding to the position indicated by the acquired position information.
  • time information corresponding to the position of the display means indicated by the position information is acquired. Therefore, the internal rhythm and the like can be maintained / adjusted more appropriately according to the position.
  • the invention according to claim 8 is the image processing apparatus according to claim 1, wherein the age-related information corresponding to the age of the person viewing the displayed image is acquired. Further comprising age-corresponding information acquisition means such as a data acquisition unit, wherein the processing means reduces the luminance corresponding to the blue component in the image based on the acquired age-corresponding information, and based on the age-corresponding information Display image information is generated from the image information and output to the display means for display.
  • age-corresponding information acquisition means such as a data acquisition unit
  • the luminance corresponding to the blue component in the image is reduced based on the age-corresponding information, and based on the age-corresponding information.
  • Display image information is generated from the image information. Therefore, it is possible to display an image in an easy-to-see state according to the age of the person who visually recognizes the image corresponding to the display image information and protecting the eyes of the person.
  • the invention according to claim 9 is the image processing apparatus according to claim 8, wherein the processing means (i) reduces the luminance based on the acquired age correspondence information. (Ii) contrast correction processing for correcting contrast in the image based on the acquired age correspondence information, and (iii) color correction for correcting color in the image based on the acquired age correspondence information.
  • the processes any one of the processes including the reduction process is performed on the acquired image information to generate the display image information.
  • the generation means includes any one of the reduction process, the contrast correction process, and the color correction process including the reduction process. Processing is performed on the image information to generate display image information. Therefore, the image can be displayed by multifaceted processing while being easy to see according to the age of the person viewing the image and effectively protecting the eyes of the person.
  • the invention according to claim 10 is the image processing apparatus according to claim 9, wherein the age corresponding to the acquired age correspondence information indicates in advance a child or an adult.
  • the processing means performs the reduction process in which the luminance reduction is equal to or higher than a reduction threshold set in advance corresponding to the age threshold, and the contrast correction is performed.
  • the contrast correction process that is equal to or lower than a correction threshold set in advance corresponding to the age threshold is executed.
  • the reduction in luminance is equal to or more than the reduction threshold.
  • a certain reduction process and a contrast correction process in which the contrast correction is equal to or less than the correction threshold are executed. Therefore, it is possible to protect an eye of a child or an adult and display an image with a contrast that is easy to see.
  • the invention according to claim 11 is the image processing apparatus according to claim 9, wherein the age corresponding to the acquired age-corresponding information is preset to indicate an adult.
  • the processing means performs the reduction process in which the luminance reduction is equal to or greater than a preset reduction threshold corresponding to the age range threshold, and the contrast correction is the age.
  • the contrast correction process that is greater than or equal to a preset correction threshold value corresponding to the width threshold value and the luminance correction process that reduces the luminance of the entire image corresponding to the age width threshold value are configured to be executed.
  • the luminance reduction is equal to or greater than the reduction threshold.
  • Reduction processing, contrast correction processing in which the contrast correction is equal to or greater than the correction threshold value, and luminance correction processing for reducing the luminance of the entire image corresponding to the age width threshold value Therefore, it is possible to protect an adult's eyes and to display an image with easy-to-see contrast and image brightness.
  • the invention according to claim 12 is the image processing apparatus according to claim 9, wherein the person is an older person than an age threshold set in advance as indicating an elderly person. And when the acquired age-corresponding information indicates that the person suffers from a preset eye disease, the processing means reduces the brightness by a preset reduction.
  • the reduction process that is equal to or less than a threshold value, the contrast correction process in which the contrast correction is equal to or greater than a preset correction threshold value, and the color correction process that corrects the color based on the acquired age-corresponding information. Configured to do.
  • the person viewing the image is an elderly person having a predetermined age threshold or more, and the person is a predetermined eye disease.
  • the color is corrected based on the reduction process in which the luminance reduction is equal to or less than the reduction threshold, the contrast correction process in which the contrast correction is equal to or greater than the correction threshold, and the age correspondence information Execute color correction processing. Therefore, an image can be displayed in an easy-to-view state for the elderly.
  • the invention according to claim 13 is the image processing apparatus according to any one of claims 8 to 12, wherein the age-corresponding information acquisition unit newly adds the age-corresponding information.
  • the processing unit When the information is acquired, the processing unit generates any of the display image information by executing any one of the processes including the reduction process on the acquired image information based on the new age-corresponding information. Configured to do.
  • any process including a reduction process based on new age correspondence information Is executed to generate display image information, so that even when new age-corresponding information can be acquired, it is easy to see according to the age of the person viewing the image and while protecting the eyes of the person, An image can be displayed appropriately.
  • an invention according to claim 14 is the image processing apparatus according to any one of claims 1 to 13, wherein the color component is RGB (Red Green Blue) color. Any one of the color components in the space, or any one of the color components in the hue in the color space composed of three elements including the hue and the saturation.
  • RGB Red Green Blue
  • the color component is any color component or hue in the RGB color space. And any one of the color components in the hue in the color space composed of three elements including the saturation, so that the image corresponding to the display image information is visually recognized for the color components of the widely used color space. It is possible to maintain / adjust the rhythm etc. of the body through vision.
  • the luminance corresponding to any color component in the image information is controlled based on the time information to generate and display the display image information.
  • FIG. 1 shows an example of the calendar information based on the principle of 1st Embodiment.
  • figure (I) which illustrates the control mode in one day of the blue light based on the principle of a 1st embodiment.
  • figure (II) which illustrates the control mode in one day of the blue light based on the principle of a 1st embodiment.
  • figure (III) which illustrates the control mode in one day of the blue light based on the principle of a 1st embodiment.
  • FIG IV illustrates the control aspect in the day of the blue light based on the principle of 1st Embodiment.
  • figure (V) which illustrates the control aspect in one day of the blue light based on the principle of 1st Embodiment.
  • FIG. 1 is a block diagram illustrating a schematic configuration of a display device according to a first embodiment. It is a figure which shows the control processing which concerns on 1st Embodiment, (a) is a figure which illustrates the reduction process of the intensity
  • FIG. 1 It is a figure which illustrates a setting screen etc. in control processing concerning a 1st embodiment
  • (a) is a figure which illustrates the setting screen
  • (b) is a figure showing the 1st example of the setting
  • c) is a diagram showing a second example of the setting.
  • (I) which illustrates setting in control processing concerning a 1st embodiment
  • (a) is a figure showing the 3rd example of the setting
  • (b) is a figure showing the 4th example of the setting. is there.
  • FIG. II which illustrates the setting in the control processing which concerns on 1st Embodiment
  • (a) is a figure which shows the 5th example of the said setting
  • (b) is a figure which shows the 6th example of the said setting. is there.
  • (a) is a figure which shows another 1st example
  • (b) is a figure which shows another 2nd example.
  • It is a figure (I) explaining the principle of 2nd Embodiment (a) is a figure which shows the concept of HLS color space
  • (b) is a figure which shows the concept of HSV color space.
  • FIG. 1 is a diagram illustrating an example of calendar information according to the principle of the first embodiment
  • FIGS. 2 to 7 are diagrams illustrating examples of a blue light day control mode according to the principle of the first embodiment. is there.
  • the blue light is not harmful and should not always be reduced, and the blue light emitted from the display visually recognized by the person is displayed on the person's day, Control is performed based on the time so as to match changes in the internal rhythm (life rhythm) or the like in the time of the month or season.
  • the intensity of the blue light during the time when the person is awake and active is higher than the intensity of the blue light during the time when the person is sleeping or resting according to the above time. Control the intensity.
  • the internal rhythm etc. through the visual sense of the person who visually recognizes the image displayed on the display emitting blue light whose intensity is controlled as described above are favorably maintained or adjusted.
  • calendar information illustrated in FIG. 1 is used as the time serving as a reference for controlling the intensity of the blue light.
  • the calendar information illustrated in FIG. 1 is disclosed, for example, at the National Astronomical Observatory of Japan, and includes the time of sunrise, south China for each geographical location (Tokyo in the case illustrated in FIG. 1) and for each month of the year. Each of the time and sunset time is included for reference.
  • the intensity of the blue light is controlled for each day, for example, in correspondence with each time included in the calendar information. More specifically, in the present invention, based on the calendar information, control is performed so that the intensity of the blue light increases in a time zone in which a person is estimated to be active and active. In other words, the control is performed so that the intensity of the blue light is lowered in the time zone in which the person is estimated to be sleeping or resting.
  • the time period for controlling the intensity of blue light is relatively long based on the calendar information.
  • the degree to which the intensity of the blue light is reduced is controlled according to the time as shown in FIG.
  • the time zone that is controlled so that the reduction rate of the intensity of blue light is increased is indicated by lower left hatching
  • the time zone that is controlled so that the reduction rate is intermediate is indicated by vertical and horizontal hatching.
  • the time zone for controlling the reduction rate to be small is indicated by lower right hatching
  • the time zone for controlling the blue light intensity not to be reduced (that is, the reduction rate is set to 0) is indicated by vertical hatching. Yes.
  • the intensity of blue light is controlled to be relatively low based on the calendar information as illustrated in FIG.
  • the degree of reduction of the intensity of blue light is controlled according to the time, while the time zone to be used is relatively shortened. Further, for March, April, September, and October between the period illustrated in FIG. 2 and the period illustrated in FIG. 3, as illustrated in FIG.
  • the time zone in which the intensity of the light is controlled to be relatively low is set in the middle of the case illustrated in FIG. 2 and the case illustrated in FIG. 3, and the degree to which the intensity of the blue light is reduced is as shown in FIG. Control according to.
  • the time zone in which the intensity of blue light is controlled to be relatively high based on the calendar information As shown in FIG. 5, the degree to which the intensity of the blue light is relatively increased is controlled according to the time. 5 to 7, the time zone for controlling the blue light intensity reduction rate to be relatively large is shown without hatching, and the time zone for controlling the reduction rate to be relatively small is shown. It is indicated by dot hatching, and the time zone for controlling to increase the intensity of blue light by decreasing the enhancement rate relatively is indicated by horizontal hatching, and the intensity of blue light is increased by increasing the enhancement rate relatively. The time zone to be controlled is indicated by vertical hatching.
  • the time for controlling the intensity of the blue light relatively low based on the calendar information.
  • the degree of increasing the intensity of blue light while controlling the band relatively is controlled according to the time as shown in FIG. Further, for March, April, September, and October between the period illustrated in FIG. 5 and the period illustrated in FIG. 6, as illustrated in FIG.
  • the time zone in which the light intensity is controlled to be relatively low is about the middle of the case illustrated in FIG. 5 and the case illustrated in FIG. 6, and the degree of increasing the intensity of the blue light is as shown in FIG. Control according to.
  • FIGS. 8 is a block diagram illustrating a schematic configuration of the display device according to the first embodiment
  • FIG. 9 is a diagram illustrating a control process according to the first embodiment
  • FIG. 10 is a flowchart illustrating the control process.
  • FIG. 11 is a diagram showing a specific example of the control process.
  • 12 is a diagram illustrating a setting screen or the like in the control process according to the first embodiment.
  • FIGS. 13 and 14 are diagrams illustrating examples of the setting in the control process.
  • FIG. 15 is a diagram illustrating the control process. It is a figure which shows another specific example.
  • the blue light intensity control process according to the first embodiment is simply referred to as “control process according to the first embodiment”.
  • the display device D1 is switched between an image generation unit 1, a control unit 2 including a CPU, a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
  • the control unit 3 is composed of a liquid crystal display or the like having a backlight that is an LED that generates (emits) blue light, and a recording medium such as a hard disk, and records a control rate table, which will be described later, in a nonvolatile manner.
  • the input unit 9 that generates an operation signal Sop that specifies processing as the display device D1, and the time at the position indicated by the position data Spos A time acquisition unit 10 for acquiring data St, and is made of.
  • the display 4 corresponds to an example of the “display unit” according to the present invention
  • the switching control unit 3 corresponds to an example of the “image information acquisition unit” according to the present invention
  • the time acquisition unit 10 correspond to the present invention. This corresponds to an example of “time information acquisition means”.
  • the pixel value update unit 6 corresponds to an example of a “processing unit” according to the present invention
  • the input unit 9 corresponds to an example of a “designating unit” according to the present invention
  • the position detection unit 8 includes “ This corresponds to an example of “position information acquisition means”.
  • the image generation unit 1 generates image information Sin corresponding to an image to be displayed on the display 4 (including at least one of a still image and a moving image; the same applies hereinafter) and outputs the image information Sin to the switching control unit 3.
  • the recording unit 5 is a preset control rate table for the control processing according to the first embodiment, and includes a control rate table including at least a reduction rate parameter used when controlling the blue component in the image. Non-volatile recording is performed (n is a natural number, the same applies hereinafter). Each control rate table will be described in detail later.
  • the input unit 9 receives a signal indicating whether or not to execute the control process according to the first embodiment based on a user operation, and the control rate table used for the control process when the control process is executed.
  • An operation signal Sop including a signal for designating is generated and output to the control unit 2.
  • the image displayed on the display 4 is, for example, an image corresponding to a movie
  • an operation for not executing the control processing according to the first embodiment is performed in the input unit 9 in order to maintain the image quality and the like. Is preferred.
  • the control process is performed in order to effectively control the intensity of the blue light by the control process according to the first embodiment.
  • an operation to be executed is performed in the input unit 9. Further, when executing the control processing according to the first embodiment, the control rate (that is, the enhancement rate when the intensity of blue light is enhanced, and the reduction rate when the intensity of blue light is reduced).
  • the operation signal Sop that reflects the operation of selecting (to be) is generated / output.
  • the other position detection unit 8 generates the position data Spos based on, for example, automatic detection using GPS (Global Positioning System) or user input operation, and outputs the position data Spos to the control unit 2. Further, the time acquisition unit 10 acquires time data St indicating the current time from a timer (not shown), for example, and outputs it to the control unit 2. In this case, the time acquisition unit 10 may acquire time data St indicating a time specified by the user other than the current time, for example, other than the current time, and output the time data St to the control unit 2.
  • GPS Global Positioning System
  • the control unit 2 executes the on / off signal indicating whether or not to execute the control process according to the first embodiment, and the control process based on the operation signal Sop, the position data Spos, and the time data St.
  • a control signal Sc including a table designating signal for designating the control rate table used for the control process is generated.
  • the control unit 2 determines the position and time based on the position indicated by the position data Spos (for example, Tokyo) and the time indicated by the time data St.
  • the table specifying signal for specifying the corresponding control rate table is generated. Thereafter, the control unit 2 outputs the on / off signal to the switching control unit 3 and the switching unit 7, and outputs the table designation signal to the recording unit 5.
  • the switching control unit 3 determines whether or not to execute the control process according to the first embodiment for the image information Sin based on the on / off signal from the control unit 2, and if so, the image information Sin. Is output to the pixel value update unit 6. On the other hand, when the control process is not executed, the switching control unit 3 outputs the image information Sin to the switching unit 7 as it is.
  • the recording unit 5 outputs the control rate parameter included in the control rate table specified by the table specifying signal from the control unit 2 to the pixel value updating unit 6.
  • the pixel value update unit 6 causes the pixel values of the red component, the blue component, and the green component in each pixel included in the image information Sin output from the switching control unit 3 (more specifically, for example, luminance ) Is updated to the pixel value indicated by the control rate table output from the recording unit 5 and output to the switching unit 7 as updated image information Sbc.
  • the upper limit value of the pixel value is determined by the number of gradations, and when the display 4 is configured by a liquid crystal display, if the display 4 is a 24-bit liquid crystal display using the RGB color space, the upper limit value is set. Is “255 (2 8 ⁇ 1)” for each of the three color components, and an upper limit value of “63 (2 6 -6)” for each of the three color components is an 18-bit liquid crystal display using the same color space. -1) ".
  • the switching unit 7 displays the image information Sin from the switching control unit 3 as it is as display information Sout when the control processing according to the first embodiment is not performed based on the on / off signal from the control unit 2. 4 is output.
  • the updated image information Sbc from the pixel value update unit 6 is output to the display 4 as display information Sout.
  • the display 4 displays an image corresponding to the display information Sout output from the switching unit 7.
  • the intensity of the blue light in the image corresponding to the image information Sin is adjusted by the color adjustment processing as the display device D1 without separately using the special optical component described as the background art. Control according to time.
  • the “reduction rate” and “enhancement rate” in the following description are “1” for each pixel value of the input image (image information Sin) when the control processing according to the first embodiment is not performed. Is a parameter defined by
  • Reduction rate [%] ⁇ 1 ⁇ (output pixel value / input pixel value) ⁇ ⁇ 100
  • Enhancement rate [%] ⁇ (output pixel value / input pixel value) ⁇ 1 ⁇ ⁇ 100
  • the first embodiment In the blue light intensity reduction processing (hereinafter simply referred to as “reduction processing” in the first embodiment) in the control processing according to FIG. 9, the original image indicated by the broken line in FIG. 9 (that is, the image corresponding to the image information Sin).
  • the reduction rate of the blue component shown as “B” in FIG. 9) is different from that of the other color components (red component (shown as “R” in FIG. 9A)) and green component (shown in FIG. 9A).
  • the pixel value updating unit 6 updates the luminance of each color component so as to be larger than the reduction rate of “G”)), and outputs the updated image information Sbc to the switching unit 7.
  • This reduction process is executed for each pixel, for example.
  • the wavelength of the blue component is, for example, about 440 nanometers to 490 nanometers
  • the wavelength of the red component is, for example, about 620 nanometers to 740 nanometers
  • the wavelength of the green component is, for example, about 500 nanometers to It is about 600 nanometers. Further, in FIG.
  • FIG. 9A it is possible to reduce only the blue component, but in that case, the color of the entire image changes (more specifically, yellowish), It is not preferable as the display device D1. Therefore, in the reduction process according to the first embodiment, not only the blue component but also the red component and the green component are reduced as illustrated in FIG. Thereby, harmful blue light can be reduced while suppressing a change in color of the entire image. At this time, depending on the content of the image, the above-described reduction of only the blue component may be performed (in other words, the reduction rate in each of the red component and the green component is zero (the red component and the green component are not reduced). ) If possible.
  • the display device D1 can make this possible by selecting a control rate table for reducing only the blue component.
  • the reduction processing is performed, for example, a so-called HLS (Hue, Luminance, Saturation) color space, HSV (Hue, Saturation, Value) color space, or a YCbCr color space including luminance (Y). The same applies to the above.
  • the horizontal axis is the input pixel value as in FIG. 9A, and the vertical axis
  • the blue light intensity enhancement process (hereinafter simply referred to as “enhancement process” in the first embodiment) in the control process according to the first embodiment
  • the pixel value updating unit 6 updates the luminance of the blue component so that the blue component is larger than the original image, and outputs the updated image information Sbc to the switching unit 7.
  • This enhancement process is also executed for each pixel, for example, in the same manner as the reduction process.
  • the first control rate table T1, the second control rate table T2, the third control rate table T3,..., And the nth control rate table Tn are recorded in advance.
  • the “control rate” includes both the blue component reduction rate when the reduction process is executed and the blue component enhancement rate when the enhancement process is executed.
  • each of the control rate parameters in the control rate table for each day and time is based on the calendar information illustrated in FIG. 1, and the control processing according to the first embodiment for one day is illustrated in any of FIGS.
  • the control mode is a value that is executed for each season. The actual values of these control rate parameters can be determined in advance experimentally or empirically based on the calendar information.
  • control process shown in FIG. 10 is started, for example, from the timing when the power switch of the display device D1 is turned on, and is executed mainly with the control unit 2 as the center.
  • the control process according to the first embodiment first, the position (of the display 4) indicated by the position data Spos from the position detection unit 8 and the time data St from the time acquisition unit 10 are used.
  • the indicated date and time is acquired (step S1).
  • the control unit 2 outputs the on / off signal as the control signal Sc to the switching control unit 3 and the switching unit 7 and controls the control process used when the control process according to the first embodiment is executed.
  • a control signal Sc including the table designating signal for designating the rate table is output to the recording unit 5.
  • step S2 when the image information Sin is input from the image generation unit 1, it is first taken into the switching control unit 3 (step S2). Then, the switching control unit 3 determines whether or not to execute the control process according to the first embodiment for the image information Sin based on the on / off signal from the control unit 2 (step S3).
  • step S3 step S3; YES
  • step S3 step S3; YES
  • step S3 step S3; NO
  • the switching control unit 3 outputs the image information Sin as it is to the switching unit 7 (step S6).
  • the recording unit 5 selects a control rate table (in other words, specifies a reduction rate or an enhancement rate) indicated by the table designation signal from the control unit 2 (step S4).
  • the control rate parameter included in the control rate table specified by the table specifying signal is output to the pixel value update unit 6.
  • the pixel value update unit 6 outputs the pixel values of the blue component, the red component, and the green component in each pixel included in the image information Sin output from the switching control unit 3 from the recording unit 5.
  • the pixel value indicated by the control rate table is updated (step S5), and the updated image information Sbc is output to the switching unit 7.
  • the switching unit 7 switches between the switching control unit 3 side and the pixel value updating unit 6 side based on the on / off signal from the control unit 2, and outputs and displays the display information Sout on the display 4 (step). S6).
  • the display 4 is used at that time based on the time of day (horizontal axis in FIG. 11), for example, as illustrated in FIG.
  • the intensity of the blue component in the case (vertical axis in FIG. 11) changes in the manner illustrated in FIGS. 2 to 7 based on the calendar information illustrated in FIG.
  • “o” around 0:00 indicates the intensity of the blue component set based on the sunset time of the previous day and the sunrise time of the day in the calendar information
  • “o” around 6 o'clock indicates the calendar information.
  • ⁇ near 18:00 indicates the intensity of the blue component at a time corresponding to the sunset time of the day in the calendar information
  • ⁇ near 12:00 indicates Indicate the intensity of the blue component at the time corresponding to the time of the day in the calendar information.
  • the circle around 24:00 indicates the blue component set based on the sunset time of the day and the sunrise time of the next day in the calendar information. Indicates strength.
  • the control rate of the blue component of the day is automatically controlled according to the time.
  • the user may arbitrarily specify the intensity of the blue component at the input unit 9. More specifically, for example, considering that the purpose of the control processing according to the first embodiment is maintenance / adjustment of the internal rhythm, etc., the set time period recommended for the enhancement, reduction, non-change, etc. of the blue component
  • the user can be presented with the options and the user can specify the time zone during which the enhancement process or the reduction process is performed according to his / her own life pattern and the like, and the degree of the enhancement or reduction. That is, for example, “The time from wake-up is increased by about XX% and the time before bedtime is reduced by about ⁇ %” is suggested as a recommended setting, and the user selects an adjustment time from the recommended settings.
  • a user interface is preferable.
  • the interface screen SG including the change in the intensity of the blue component of the day corresponding to the control rate table is displayed. As shown in FIG. 12A, it is displayed on the display 4.
  • a graph including, for example, ⁇ indicating the intensity of the blue component indicated by the control rate table corresponding to the interface screen SG every two hours is displayed.
  • a cursor C operated when changing the intensity ( ⁇ ) of the blue component at each time is also displayed.
  • a legend NT indicating that the user can arbitrarily change the intensity of the blue component at each time by an operation on the input unit 9 using the cursor C is also displayed.
  • the ⁇ indicating the intensity of the blue component at each time is the direction in which the intensity is changed (the vertical direction in FIG. 12A in the interface screen SG) or the intensity. It is indicated by a broken line double-pointed arrow that it can move in any of the directions for changing the time (that is, the horizontal direction in FIG. 12A on the interface screen SG).
  • the user has, as a first example, the intensity of the blue component at 16:00 in the corresponding control rate table is around 18:00.
  • the user when the user displays the interface screen SG illustrated in FIG. 12B on the display 4, the user operates, for example, a mouse (not shown) constituting the input unit 9 to intensify the blue component at 16:00.
  • the cursor C is moved to the position of the point P2 indicating.
  • the user moves the cursor C to the position corresponding to about 18 o'clock in the right direction as indicated by a broken line arrow in FIG. Move.
  • the intensity of the original 16 o'clock blue component illustrated by the dashed point P2 in FIG. 12B is changed to that of the blue component around 18 o'clock illustrated by the solid point P2 in FIG. It is specified to be strength.
  • the intensity of the blue component corresponding to each of the other points P1, P3, and P4 in the vicinity of the point P2 as illustrated in FIG. 12B, the change in the intensity of the blue component corresponding to the point P2 is illustrated.
  • the intensity of the blue component corresponding to each of the points P1, P3, and P4 is changed so that the entire curve indicating the change in intensity of the blue component maintains a smooth change. Is preferred.
  • a curve indicating a change in the intensity of the blue component by changing only the intensity of the blue component corresponding to the point P2 corresponds to the point P1 (invariant).
  • the intensity of the blue component may be changed such that the intensity of the blue component ⁇ the intensity of the blue component corresponding to the point P2 indicated by the solid line ⁇ the intensity of the blue component corresponding to the point P3 (invariant).
  • the description content (control rate parameter) of the control rate table corresponding to the intensity of the blue component after change illustrated in FIG. 12B or FIG. 12C is recorded in the recording unit 5 and is used in the first embodiment. It is provided for the control processing concerning.
  • the user shifts the intensity of the blue component at 16:00 in the corresponding control rate table (shifts the time).
  • the user moves the cursor to the position of the point P2 indicating the intensity of the blue component at 16:00, for example, by operating the mouse while the interface screen SG illustrated in FIG. Move C.
  • the cursor C is moved downward to the position of the intensity of the desired blue component as indicated by the dashed arrow in FIG.
  • FIG. 13A is changed to the intensity of the (weak) blue component illustrated by the solid line point P2 in FIG. 13A.
  • the change in the intensity of the blue component corresponding to the point P2 point P2
  • a curve indicating a change in the intensity of the blue component by changing only the intensity of the blue component corresponding to the point P2 corresponds to the point P1 (invariant).
  • the intensity of the blue component may be changed such that the intensity of the blue component ⁇ the intensity of the blue component corresponding to the point P2 indicated by the solid line ⁇ the intensity of the blue component corresponding to the point P3 (invariant).
  • strength of the blue component after the change illustrated to FIG. 13A or FIG. 13B is recorded on the recording part 5, and 1st Embodiment It is provided for the control processing concerning.
  • the user decreases the intensity of the blue component at 16:00 in the corresponding control rate table as a third example, and Suppose that it is desired to shift the weakened strength to a strength around 18:00.
  • the user moves the cursor to the position of the point P2 indicating the intensity of the blue component at 16:00, for example, by operating the mouse while the interface screen SG illustrated in FIG. Move C.
  • the point P2 is moved to the position corresponding to about 18 o'clock and moved to the position corresponding to the intensity of the desired blue component.
  • the cursor C is moved obliquely in the lower right direction as indicated by the broken line arrow in FIG.
  • the intensity of the original 16 o'clock blue component illustrated by the dashed point P2 in FIG. 14A is (weak) around 18 o'clock illustrated by the solid point P2 in FIG. 14A.
  • the intensity of the blue component corresponding to each of the other points P1 and P3 in the vicinity of the point P2 as illustrated in FIG. 14A, the change in the intensity of the blue component corresponding to the point P2 (point P2).
  • a curve indicating a change in the intensity of the blue component by changing only the intensity of the blue component corresponding to the point P2 corresponds to the point P1 (invariant).
  • the intensity of the blue component may be changed such that the intensity of the blue component ⁇ the intensity of the blue component corresponding to the point P2 indicated by the solid line ⁇ the intensity of the blue component corresponding to the point P3 (invariant).
  • the description content (control rate parameter) of the control rate table corresponding to the intensity of the changed blue component illustrated in FIG. 14A or FIG. 14B is recorded in the recording unit 5 and is used in the first embodiment. It is provided for the control processing concerning.
  • control processing for each color component can be performed by setting / recording a control rate table similar to that of the first embodiment for each color component.
  • the brightness corresponding to any color component in the image information Sin is controlled based on the control rate table corresponding to the time, and the updated image information Sbc and Since the display information Sout is generated, it is possible to satisfactorily maintain the internal rhythm and the like of the user who visually recognizes the image corresponding to the display information Sout.
  • the updated image information Sbc and the display information Sout are generated by mainly controlling the luminance corresponding to the blue component in the image information Sin, the luminance corresponding to the blue component that is likely to affect the internal rhythm and the like. Can be appropriately controlled to maintain the internal rhythm and the like satisfactorily.
  • the control modes illustrated in FIGS. 2 to 7 are changed to the horizontal axis in FIGS. It is preferable to execute the control processing according to the first embodiment by the control mode upside down in FIG.
  • FIGS. 11 to 15 for example, when the luminance of the color component is controlled based on at least one of the sunrise time and the sunset time in the calendar information illustrated in FIG.
  • the internal rhythm can be adjusted more favorably.
  • the luminance control modes illustrated in FIGS. 11 to 15 when the user is a night worker, for example, the luminance control modes illustrated in FIGS. It is preferable to execute the control processing according to the first embodiment by the control mode upside down in FIG.
  • the luminance when the user inputs the luminance control mode of the color component using the input unit 9, the luminance can be controlled according to the preference of the user who visually recognizes the image, and the body is adapted to the user. Rhythm etc. can be adjusted. Furthermore, when the interface screen SG including the graph corresponding to the temporal change of the intensity of the blue component as illustrated in FIGS. 12 to 14 is displayed on the display 4 and the intensity is changed, the user viewing the image The luminance can be easily controlled according to the preference and the like, and the internal rhythm and the like can be maintained / adjusted by the user.
  • the luminance of the color component is controlled based on the calendar information corresponding to the position of the display 4 indicated by the position data Spos and the time data St, the internal rhythm and the like are adjusted more appropriately according to the position. be able to.
  • FIGS. 16 to 20 are diagrams for explaining the principle and the like of the second embodiment
  • FIG. 21 is a block diagram showing a schematic configuration of a display device according to the second embodiment
  • FIG. 22 is a second embodiment. It is a flowchart which shows the control processing concerning.
  • the blue light intensity control process according to the second embodiment is simply referred to as “control process according to the second embodiment”.
  • the control process is performed on an HLS color space, an HSV color space, or a YCbCr color space including luminance (Y).
  • the RGB color space is converted to a color space such as an HLS color space or an HSV color space, and not only the three primary colors of R, G, and B but also cyan, magenta, and yellow are considered.
  • the reduction rate or the enhancement rate is controlled for each color space to efficiently control the intensity of the blue light, and the image is reconverted into the RGB color space and displayed on the display. More specifically, as a second embodiment, an embodiment in which the present invention is implemented using the above HLS color space or HSV color space will be described.
  • HLS color space and the HSV color space are color spaces that are generally known together with the RGB color space according to the first embodiment for image processing.
  • the HLS color space used for the reduction processing according to the second embodiment includes a hue (Hue) axis H, a luminance (Luminance) axis L, and saturation. (Saturation)
  • the axis S is constituted.
  • the hue axis H is an axis representing the so-called “color” with an angle in the range of 0 degrees to 360 degrees, and as illustrated in FIG. 16A, the R (red) component and the G (green) component.
  • a C (Cyan) component, an M (Magenta) component, and a Y (Yellow) component are included.
  • 0 degree is the R component
  • 180 degrees located on the opposite side on the hue axis H is a blue-green component corresponding to the opposite color of the R component. If such an HLS color space is used, it is easy to obtain a so-called opposite color.
  • the wavelength of the B component in the HLS color space is, for example, about 440 nanometers to 490 nanometers similarly to the blue component in the RGB color space
  • the wavelength of the R component is, for example, 620 similarly to the red component in the RGB color space
  • the wavelength of the G component is, for example, about 500 to 600 nanometers, similar to the green component in the RGB color space.
  • the C component is a component composed of the G component and the B component
  • the M component is a component composed of the R component and the B component
  • the Y component is composed of the R component and the G component. It is the component which consists of.
  • the saturation axis S represents “color vividness” in a range from 0% (center axis itself) to 100% (outermost circumference), considering the distance from the luminance axis L (center axis of the HLS color space). It is an axis to express, and the fact that the saturation falls from the pure color is a concept based on the idea of approaching gray.
  • the luminance axis L is an axis representing “brightness of color” in a range of 0% to 100%
  • luminance 0% (the bottom end in FIG. 16A) is “black”
  • luminance 100% ( In FIG. 16A, the uppermost end) is “white”
  • the middle (the position of the disk representing the hue axis H) is 50%, representing a pure color.
  • the HSV color space used for the control processing according to the second embodiment includes a hue (Hue) axis H and a lightness (or luminance) (Value) axis. It is constituted by V and a saturation axis S.
  • the hue axis H is basically the same axis as the hue axis H of the HLS color space, and the color type is represented by an angle in the range of 0 to 360 degrees, and the R component, the G component, and the B component.
  • a C component, an M component, and a Y component are included.
  • the saturation axis S is set to a distance from the lightness axis V (the central axis of the HSV color space) from 0% (the central axis itself) to 100. % (Outermost circumference) is the axis representing “color vividness”.
  • the lightness axis V is an axis representing “brightness of color” in the range of 0% to 100%, similar to the luminance axis L of the HLS color space.
  • the brightness axis V indicates how much brightness is lost from a pure color with a brightness of 100%
  • the brightness axis L of the HLS color space is “black” with 0% brightness as described above.
  • white has a luminance of 100% and an intermediate luminance of 50% is a pure color.
  • the blue light intensity reduction process according to the second embodiment with respect to white (achromatic color) in the HLS color space (hereinafter referred to simply as “second embodiment” in the second embodiment).
  • the luminance is reduced from, for example, the level of the broken line ⁇ to the level of the solid line ⁇ on the luminance axis L, as illustrated by the broken line ⁇ and the solid line ⁇ in FIG.
  • the reduction processing according to the second embodiment is performed on the B component of the HLS color space
  • the level of only the B component on the hue axis H is exemplified by the broken line ⁇ and the solid line ⁇ in FIG.
  • the reduction processing according to the second embodiment is performed on white (achromatic color) in the HSV color space, the case of the HLS color space as illustrated by the broken line ⁇ and the solid line ⁇ in FIG.
  • the reduction processing according to the second embodiment is applied to the B component of the HSV color space, as illustrated by the broken line ⁇ and the solid line ⁇ in FIG. 18B, this is the same as in the case of the HLS color space.
  • the level of only the B component on the hue axis H it is possible to reduce blue light while suppressing changes in the overall color tone by reducing the effect on other color components. is there.
  • the blue light intensity enhancement process according to the second embodiment with respect to white (achromatic color) in the HLS color space (hereinafter referred to simply as “second implementation” in the second embodiment).
  • second implementation in the second embodiment, the blue light intensity enhancement process according to the second embodiment with respect to white (achromatic color) in the HLS color space (hereinafter referred to simply as “second implementation” in the second embodiment).
  • the luminance is increased on the luminance axis L from the level of the broken line ⁇ to the level of the solid line ⁇ , for example.
  • the enhancement processing according to the second embodiment is performed on the B component of the HLS color space
  • the level of only the B component on the hue axis H is exemplified by the broken line ⁇ and the solid line ⁇ in FIG.
  • the influence on other color components for example, the C component and the M component
  • the enhancement processing according to the second embodiment is performed on white (achromatic) in the HSV color space, the case of the HLS color space, as illustrated by the broken line ⁇ and the solid line ⁇ in FIG.
  • the blue light can be enhanced without changing the color on the display.
  • the enhancement processing according to the second embodiment is performed on the B component of the HSV color space, as illustrated by the broken line ⁇ and the solid line ⁇ in FIG. 20B, this is the same as in the case of the HLS color space.
  • the enhancement processing according to the second embodiment is performed on the B component of the HSV color space, as illustrated by the broken line ⁇ and the solid line ⁇ in FIG. 20B, this is the same as in the case of the HLS color space.
  • it is possible to enhance the blue light while suppressing the change in color on the entire display by reducing the influence on other color components. is there.
  • the display device D2 includes an image generation unit 1, a control unit 2, and a switching control unit 3 having the same configuration and functions as those of the display device D1 according to the first embodiment.
  • the recording unit 5, the switching unit 7, the position detection unit 8, the input unit 9, and the time acquisition unit 10 the pixel value update unit 60 according to the second embodiment and the color space according to the second embodiment.
  • the conversion unit 61 and the color space inverse conversion unit 62 according to the second embodiment are configured.
  • the control rate table recorded in the recording unit 5 is a preset control rate table for the control processing according to the second embodiment using the HLS color space, and It differs from the recording unit 5 of the display device D1 according to the first embodiment in that it is a control rate table including at least a control rate parameter used when reducing or enhancing components. Even in this case, similarly to the control processing according to the first embodiment, the blue light in the image corresponding to the image information Sin is removed by the color adjustment processing as the display device D2 without using the special optical component separately. There is no change to control.
  • the image information Sin output from the image generation unit 1 corresponds to the RGB color space as in the case of the display device D1 according to the first embodiment. Includes color data and the like.
  • the control unit 2 executes the control process according to the second embodiment based on the operation signal Sop from the input unit 9, the position data Spos from the position detection unit 8, and the time data St from the time acquisition unit 10.
  • a control signal Sc each including an on / off signal indicating whether to perform the control process and a table designating signal for designating the control rate table used in the control process when the control process is performed.
  • control unit 2 executes the control process according to the second embodiment, the position indicated by the position data Spos, and the time indicated by the time data St.
  • the table designation signal for designating a control rate table (control rate table for HLS color space) corresponding to the position and time is generated based on the above.
  • control unit 2 outputs the on / off signal to the switching control unit 3 and the switching unit 7, and outputs the table designation signal to the recording unit 5.
  • the switching control unit 3 determines whether or not to execute the control process according to the second embodiment for the image information Sin based on the on / off signal from the control unit 2, and if so, the image information Sin. Is output to the color space conversion unit 61. On the other hand, when the control process is not executed, the switching control unit 3 outputs the image information Sin to the switching unit 7 as it is.
  • the color space conversion unit 61 converts the color space corresponding to the image information Sin output from the switching control unit 3 from the RGB color space to the HLS color space, and converts the image information Sin corresponding to the converted HLS color space to the pixel. Output to the value update unit 60. Note that the color space conversion processing (conversion processing from the RGB color space to the HLS color space) itself in the color space conversion unit 60 is the same as the conventional conversion processing, and thus detailed description is omitted.
  • the reduction rate parameter included in the reduction rate table designated by the table designation signal from the control unit 2 is output to the pixel value update unit 60.
  • the pixel value update unit 60 has at least the B component pixel value of the HLS color space (more specifically, for example, luminance) in each pixel included in the image information Sin output from the color space conversion unit 61. ) Is updated to the pixel value indicated by the reduction rate table output from the recording unit 5 and output to the color space inverse conversion unit 62 as updated image information Sbc.
  • the update of the pixel value in this case is an update of the pixel value based on the principle illustrated in FIG. 17 or FIG.
  • the color space reverse conversion unit 62 reversely converts the color space corresponding to the updated image information Sbc output from the pixel value update unit 60 from the HLS color space to the original RGB color space, and converts the color space to the RGB color space after the reverse conversion.
  • the corresponding updated image information Sbc is output to the switching unit 7.
  • the color space reverse conversion process inverse conversion process from the HLS color space to the RGB color space itself in the color space reverse conversion unit 62 is the same as the conventional reverse conversion process, and thus detailed description thereof is omitted.
  • the switching unit 7 displays the image information Sin from the switching control unit 3 as display information Sout as it is when the control processing according to the second embodiment is not performed based on the on / off signal from the control unit 2. 4 is output.
  • the updated image information Sbc from the color space inverse transform unit 62 is output to the display 4 as display information Sout.
  • the display 4 displays an image corresponding to the display information Sout output from the switching unit 7.
  • step S3 the same steps S1 to S3 as the control process according to the first embodiment are executed.
  • step S3 the determination in step S3
  • step S3 the switching control unit 3 outputs the image information Sin to the color space conversion unit 61.
  • step S3 the switching control unit 3 outputs the image information Sin as it is to the switching unit 7 (step S6).
  • the color space conversion unit 61 performs the conversion process from the RGB color space to the HLS color space described above on the image information Sin output from the switching control unit 3, and the color space is converted into the HLS color space.
  • the image information Sin is output to the pixel value update unit 60 (step S10).
  • the recording unit 5 selects a control rate table (in other words, specifies a reduction rate or an enhancement rate) indicated by the table designation signal from the control unit 2 (step S11).
  • the control rate parameter included in the control rate table specified by the table specifying signal is output to the pixel value update unit 60.
  • the pixel value update unit 60 controls the pixel value of at least the B component of the hue axis H in each pixel included in the image information Sin output from the color space conversion unit 61, which is output from the recording unit 5.
  • the pixel value indicated by the rate table is updated (step S12), and the updated image information Sbc is output to the color space inverse transform unit 62.
  • the color space inverse conversion unit 62 performs the above-described reverse conversion processing from the HLS color space to the RGB color space on the updated image information Sbc output from the pixel value update unit 60, and the color space is changed to the RGB color space.
  • the returned updated image information Sbc is output to the switching unit 7 (step S13).
  • the switching unit 7 switches between the switching control unit 3 side and the color space inverse conversion unit 62 side based on the on / off signal and the range designation signal from the control unit 2 and outputs the display information Sout to the display 4. Is displayed (step S6).
  • the luminance control rate corresponding to the B component in the HLS color space corresponds to each luminance component corresponding to each color component other than the B component in the hue axis H.
  • the updated image information Sbc is generated and displayed by controlling the luminance corresponding to the B component so as to be equal to or greater than the control rate. Therefore, the B component can be controlled (reduced or enhanced) without separately using an optical member or the like that reduces the B component.
  • the saturation on the saturation axis S is set to zero. If the updated image information Sbc is generated by controlling the luminance, it is possible to effectively protect the eyes even for an achromatic color such as a white image. Furthermore, even when the saturation in the image corresponding to the image information Sin is, for example, 10% or less, the control ratios of the luminances corresponding to the B component in the hue and the color components other than the B component in the hue are all omitted.
  • the updated image information Sbc is generated as the same, all the color components in the hue are controlled to be approximately equal, so that, for example, the B component can be controlled while preventing the white color on the display from changing. Ingredients can be controlled (reduced or enhanced) without changes in color.
  • the color tone of the color including white on the display changes.
  • the B component can be controlled (reduced or enhanced) while preventing this.
  • the control process according to the second embodiment described above the case where the HLS color space is used as the color space has been described. However, the case where the HSV color space described with reference to FIGS. 16B, 18, and 20 is used. However, the control process according to the second embodiment can be executed in exactly the same manner.
  • the color space conversion unit 61 converts the image information Sin from the RGB color space to the HSV color space
  • the color space inverse conversion unit 62 converts the update image information Sbc from the HSV color space to the RGB color space. Inverse conversion processing is performed. In this case, the pixel value is updated based on the principle illustrated in FIG. 18 or FIG.
  • the conversion process itself from the RGB color space to the HSV color space in the color space conversion unit 61 and the reverse conversion process from the HSV color space to the RGB color space in the color space inverse conversion unit 62 are the conventional conversion processes. And the same inverse transformation process.
  • the color space of the image information Sin is converted into either the HLS color space or the HSV color space, and the control processing is executed.
  • the B component can be controlled (reduced or enhanced) while preventing the color of the material from changing.
  • the second embodiment can also be applied to a so-called La * b * color space, which is a similar color space, and a so-called YCbCr (YUV) color space consisting of luminance and color difference.
  • control processing according to the first embodiment is achieved in that the control processing is performed using the control rate table selected by the operation of the control unit 2 among the control rate tables recorded in the recording unit 5.
  • control processing is performed using the control rate table selected by the operation of the control unit 2 among the control rate tables recorded in the recording unit 5.
  • the same application as the control processing according to the first embodiment is possible.
  • the present invention is applied to an in-vehicle display used for movement guidance of, for example, a vehicle or a bicycle in addition to a stationary display for a personal computer or the like. It is also possible to apply. In this case, it can be used to prevent the driver's sleepiness by enhancing the blue component. In this case, whether or not the vehicle is in operation with time (for example, it is operating as an in-vehicle display) It is conceivable to perform the blue component enhancement processing based on whether or not.
  • control process according to the first embodiment and the control process according to the second embodiment can be configured to be executed not in units of days but in units of months or seasons.
  • a control rate table in this case a monthly or seasonal control rate table is recorded in the recording unit 5 and used.
  • control processing according to each embodiment is uniformly executed on the entire image.
  • a range in the image is designated. It can also be configured to control whether or not to be the target of the control processing according to each embodiment.
  • the intensity of the blue light is controlled according to the day or time.
  • the liquid crystal display or the like is used. Data indicating the age and sex of the user viewing the display is acquired, and based on the data, contrast correction, color correction, and blue light intensity control are performed in the display using the display. In the following description, the age and sex are simply referred to as “age etc.”.
  • the intensity of the blue light in the image is reduced as necessary in accordance with the age of the user.
  • the user's eyes are protected from blue light in an easy-to-view state suitable for the age and so on. While displaying the necessary image.
  • a display state in a display device that includes a display including a liquid crystal display and displays images including moving images and still images (that is, contrast in the image, color, luminance of blue light, etc.)
  • images including moving images and still images (that is, contrast in the image, color, luminance of blue light, etc.)
  • the display state control process according to the third embodiment is simply referred to as a “control process according to the third embodiment”.
  • FIG. 23 is a block diagram showing a schematic configuration of a display device according to the third embodiment
  • FIG. 24 is a diagram showing a contrast correction process according to the third embodiment
  • FIG. 25 is a diagram according to the third embodiment. It is a figure which shows the control process corresponding to the time of the intensity
  • FIG. 26 is a flowchart which shows the control process which concerns on 3rd Embodiment.
  • the display device D3 includes an image generation unit 20, a control unit 21 including a CPU, a ROM, a RAM, and the like, a contrast correction determination unit 22, and the blue light.
  • a display 23 composed of a liquid crystal display or the like having a backlight which is a generated (light emitting) LED, a recording unit 24 configured to record a luminance table or the like described later in a nonvolatile manner, and a contrast correction pixel value.
  • the age data acquisition unit 27 corresponds to an example of “age-related information acquisition unit” according to the present invention
  • the blue light control pixel value update unit 31 corresponds to an example of “processing unit” according to the present invention.
  • the image generation unit 20 generates image information Sin corresponding to an image to be displayed on the display 23 (including at least one of a still image and a moving image; the same applies hereinafter) and supplies the image information to the contrast correction determination unit 22. Output.
  • the recording unit 24 records a plurality of preset various tables for control processing according to the third embodiment in a nonvolatile manner.
  • the intensity correction table used for the contrast correction is recorded in the recording unit 24 in a nonvolatile manner.
  • the first intensity correction table TC1 to the nth intensity correction table TCn as the intensity correction table
  • the first color correction table TL1 to the mth color correction as the color correction table.
  • a table TLm (m is a natural number) and a first luminance table TB1 to a p-th luminance table TBp (p is a natural number) as the luminance table are recorded in a nonvolatile manner.
  • the age data acquisition unit 27 acquires the age data Sage and outputs it to the control unit 21.
  • the age data acquisition unit 27 may acquire, for example, the age data Sage input by the user operating an input unit (not shown) from the input unit.
  • the age data acquisition unit 27 acquires, for example, medical chart data corresponding to the medical chart of the hospital where the user is consulted from the hospital via a network such as the Internet, and extracts the age data Sage from the medical chart data. May be output to the control unit 21.
  • the age data acquisition unit 27 estimates / detects the user's age and the like using a face recognition technique similar to the conventional one described in, for example, Japanese Patent Application Laid-Open No.
  • the age data Sage shown may be extracted and output to the control unit 21.
  • the time acquisition unit 29 acquires the time data St from a timer (not shown), for example, and outputs it to the control unit 21.
  • the control unit 21 plays an role such as indicating a portion to be subjected to each control process according to the third embodiment in an image to be displayed on the display 23 based on the age data Sage and the time data St.
  • a control signal Sc including an off signal and a table designating signal for designating the various tables used for the control processing when the control processing is executed is generated.
  • the control unit 21 at the timing when the pixel value of the image information Sin corresponding to the portion to be subjected to each control process according to the third embodiment is input from the image generation unit 20 in the image to be displayed, the control unit 21 Then, the control signal Sc including the on / off signal which is an on signal is generated.
  • control unit 21 is an off signal at the timing when the pixel value of the image information Sin corresponding to the portion not to be subjected to each control process according to the third embodiment is input from the image generation unit 20.
  • a control signal Sc including an on / off signal is generated.
  • the image displayed on the display 23 is the target of the control process according to the third embodiment is, for example, the image corresponding to a movie, as in the control process according to the first embodiment. In such a case, the control process according to the third embodiment is not a target of the control process.
  • the control process is preferably performed.
  • the control unit 21 when executing the control processing according to the third embodiment, performs the intensity correction table TC and the color correction table TL based on the age indicated by the age data Sage and the time indicated by the time data St. And the table designation signal for designating the luminance table TB is generated. Thereafter, the control unit 21 outputs the on / off signal indicating the portion of the image to be corrected for contrast to the contrast correction determination unit 22 as a control signal Sc, and selects the portion of the image to be corrected for color.
  • the on / off signal shown is output to the color correction determination unit 26 as a control signal Sc, and the blue light control determination unit 30 uses the on / off signal indicating the part of the image to be controlled by the blue light as the control signal Sc. Further, the table designation signal is outputted as the control signal Sc to the recording unit 24.
  • the on / off signal indicating the portion of the image to be subjected to contrast correction is simply referred to as “contrast correction on / off signal” and is to be subjected to color correction.
  • the on / off signal indicating the image portion is simply referred to as “color correction on / off signal”
  • the on / off signal indicating the image portion to be controlled by the blue light is simply referred to as “blue light control on / off”. This is referred to as an “off signal”.
  • the table designation signal for designating the intensity correction table TC is simply referred to as “intensity correction table designation signal”
  • the table designation signal for designating the color correction table TL is simply “color correction table designation signal”.
  • the table designation signal for designating the luminance table TB is simply referred to as “luminance table designation signal”.
  • the contrast correction determination unit 22 Based on the contrast correction on / off signal from the control unit 21, the contrast correction determination unit 22 performs the operation of the control unit 21 on the image information Sin corresponding to the portion of the image that is the target of the contrast correction. For the pixel, the pixel value is output to the contrast correction pixel value update unit 25. On the other hand, the pixel value of the pixel of the image information Sin corresponding to a portion other than the contrast correction target portion of the image is output to the color correction determination unit 26 as it is.
  • the recording unit 24 outputs the intensity correction parameters included in the intensity correction table TC specified by the intensity correction table specifying signal from the control unit 21 to the contrast correction pixel value update unit 25.
  • the contrast correction pixel value updating unit 25 for example, the pixel values of the red component, the blue component, and the green component in each pixel included in the image information Sin output from the contrast correction determination unit 22 (more specifically, Is updated to the pixel value corresponding to the intensity correction parameter output from the recording unit 24, and the color correction determination is performed as contrast corrected image information Scc in which the contrast is corrected based on the intensity correction parameter.
  • the upper limit value of the pixel value (or luminance value) is determined by the number of gradations, and if the display 23 is a 24-bit liquid crystal display using the RGB color space, the upper limit value is set for each of the three color components. “255 (2 8 ⁇ 1)”.
  • the upper limit value is “63 (2 6 ⁇ 1)” for each of the three color components.
  • each color component when the matters common to the red component, the blue component, and the green component are described, they are simply referred to as “each color component”.
  • the control unit 21 designates the intensity correction table TC used for the contrast correction for the pixels of the image information Sin corresponding to the contrast correction target portion of the image displayed on the display 23.
  • the intensity correction table designating signal is output to the recording unit 24.
  • TC2 and a third intensity correction table corresponding to the correction intensity “strong” are set in advance, and intensity correction parameters corresponding to the respective correction intensity tables TC are recorded in the recording unit 24 in a nonvolatile manner.
  • n is “3”.
  • the relationship between the input pixel value and the output pixel value in each color when the display 23 is a 24-bit liquid crystal display using the RGB color space and the contrast is not corrected is the relationship illustrated in FIG.
  • the first correction intensity table TC1 corresponding to the correction intensity “weak” is different from the example illustrated in FIG. 24B (the case illustrated in FIG. 24A, for example).
  • the first correction intensity table TC1 for correcting the contrast is recorded in (b) (see the middle broken arrow).
  • the second correction intensity table TC2 corresponding to the correction intensity “medium” is different from the example illustrated in FIG. 24C (the case illustrated in FIG. 24B, for example).
  • the second correction strength table TC2 for correcting the contrast is recorded in (c) (see the broken line arrow). Furthermore, as the third correction intensity table corresponding to the correction intensity “strong”, for example, the difference from the case illustrated in FIG. 24D (the case illustrated in FIG. 24C) is different from FIG. A third correction intensity table for correcting the contrast is recorded in the middle dashed arrow).
  • the specific correction intensity parameter values included in each correction intensity table TC are preferably set in accordance with, for example, the JIS S0031 standard that defines the spectral luminous efficiency by age.
  • control unit 21 generates the correction intensity table designation signal for designating the intensity correction table TC corresponding to the age or the like based on the age or the like indicated by the age data Sage for the contrast correction. To do.
  • the control unit 21 turns off the contrast correction itself (that is, generates the contrast correction on / off signal corresponding to the off signal and outputs it to the contrast correction determination unit 22), or sets the intensity of the correction.
  • a correction intensity table designation signal for designating the first correction intensity table TC1 to generate “weak” is generated and output to the recording unit 24.
  • the control unit 21 turns off the contrast correction itself or generates a correction intensity table designation signal for designating the first correction intensity table TC1 to generate a recording unit. 24.
  • the control unit 21 designates a correction strength table TC for increasing the contrast correction strength and sets the brightness. It may be configured to reduce eye fatigue while ensuring visibility as an image by controlling to lower.
  • the control unit 21 generates a correction intensity table designation signal for designating the second correction intensity table TC2 or the third correction intensity table so as to set the contrast correction intensity to “medium” or “strong”. Output to the recording unit 24.
  • the contrast intensity of the image displayed on the display 23 is appropriately set based on the age indicated by the age data Sage. It is corrected to.
  • specific values of the first threshold age and the second threshold age may be set in advance based on, for example, statistical or empirical numerical values.
  • the operation of the control unit 21 causes the color correction determination unit 26 to correspond to the portion of the image that is subject to color correction based on the color correction on / off signal from the control unit 21.
  • the pixel value is output to the color correction pixel value update unit 28.
  • the pixel value of the pixel of the contrast-corrected image information Scc corresponding to the portion other than the portion subjected to the color correction in the image is output to the blue light control determination unit 30 as it is.
  • the recording unit 24 outputs the color correction parameters included in the color correction table TL specified by the color correction table specifying signal from the control unit 21 to the color correction pixel value update unit 28.
  • the color correction pixel value update unit 28 outputs, for example, the pixel value of each color component in each pixel included in the contrast correction image information Scc output from the color correction determination unit 26 from the recording unit 24.
  • the pixel value corresponding to the color correction parameter is further updated, and the color is output to the blue light control determination unit 30 as color corrected image information Scl corrected based on the color correction parameter.
  • the control unit 21 uses the color correction table TL used for correcting the color of the pixel of the contrast-corrected image information Scc corresponding to the portion to be corrected for the color in the image displayed on the display 23.
  • the color correction table designating signal for designating is output to the recording unit 24.
  • the color correction table TL according to the third embodiment for example, in an elderly person, the entire image looks yellowish due to macular degeneration due to aging, so that a so-called cold color is difficult to see.
  • a color correction table TL for performing color correction for increasing the so-called warm color ratio is set in advance, and color correction parameters corresponding to the color correction table TL are recorded in the recording unit 24 in a nonvolatile manner.
  • m is “1”.
  • specific color correction parameter values included in the color correction table TL include, for example, the JIS S0033 standard that defines a combination method based on the basic color region in consideration of age, or a “Senior Com color questionnaire (for example, URL It is preferable to set according to the content such as “http://www.seniorcom.co.jp/pdf/120615_survey_iro.pdf”).
  • control unit 21 generates the color correction table designation signal for designating the color correction table TL corresponding to the age or the like based on the age or the like indicated by the age data Sage. To do.
  • the control unit 21 turns off the color correction itself (that is, generates the color correction on / off signal corresponding to the off signal and outputs it to the color correction determination unit 26), and the color correction table designation signal. Does not generate.
  • the control unit 21 performs color correction according to the third embodiment in consideration of the possibility of the macular degeneration.
  • a color correction table specifying signal for specifying the color correction table TL is generated and output to the recording unit 24.
  • the control unit 21 By the operations of the control unit 21, the recording unit 24, the color correction determination unit 26, and the color correction pixel value update unit 28, the color of the image displayed on the display 23 is appropriately corrected based on the age indicated by the age data Sage. Is done.
  • the operation of the control unit 21 causes the blue light control determination unit 30 to detect the blue light control target portion of the image based on the blue light control on / off signal from the control unit 21.
  • the pixel value is output to the blue light control pixel value updating unit 31.
  • the pixel value of the color-corrected image information Scl corresponding to a portion other than the portion to be controlled by the blue light in the image is output to the display 23 as it is.
  • the recording unit 24 outputs the luminance control parameter included in the luminance table TB specified by the luminance table specifying signal from the control unit 21 to the blue light control pixel value updating unit 31.
  • the blue light control pixel value update unit 31 outputs, for example, the pixel value of each color component in each pixel included in the color correction image information Scl output from the blue light control determination unit 30 from the recording unit 24.
  • the pixel value corresponding to the brightness control parameter is updated, and the corresponding blue light brightness is output to the display 23 as blue light control image information Sbc controlled based on the brightness control parameter.
  • the control unit 21 uses the luminance table used for controlling the blue light for the pixels of the color correction image information Scl corresponding to the portion to be controlled by the blue light in the image displayed on the display 23.
  • the luminance table designation signal for designating TB is output to the recording unit 24.
  • the blue light control according to the third embodiment for example, a method of reducing the pixel value (luminance value) of the blue component in the image displayed on the display 23 relative to the pixel values of the other color components.
  • the luminance of the blue light in the image is reduced by using a method for reducing the luminance of the backlight of the display 23 itself.
  • the blue light control according to the third embodiment for example, as shown in FIG. 25, the blue light in the image displayed on the display 23 according to the time of day (see the horizontal axis in FIG. 25).
  • the reduction rate see the vertical axis in FIG. 25 is controlled.
  • the reduction rate is lower than that at night when the user goes to bed (in other words, the brightness of the blue light is increased in the daytime compared to the nighttime).
  • the blue light is controlled using the control pattern of the reduction rate illustrated in FIG. 25, and it is generally said that the blue light acts on the time adjustment of a person. This is because the change (control) should be performed.
  • the control pattern illustrated in FIG. 25 is because blue light is more necessary during the daytime, and it is pointed out that there is a possibility that ordinary living indoors is not sufficient.
  • the luminance table TB indicating the blue light reduction rate for each time having the change illustrated in FIG.
  • a plurality of brightness control parameters that are set in advance for each age and the like and that correspond to each brightness table TB are recorded in the recording unit 24 in a nonvolatile manner.
  • the second luminance table TB2 of “reduction rate; medium” which is less than the threshold and equal to or higher than the preset second reduction rate threshold, and the “reduction rate; A three luminance table is recorded in the recording unit 24.
  • the p is “3”.
  • changes in the reduction rate for each time in the first luminance table TB1 of “reduction rate; high”, the second luminance table TB2 of “reduction rate; medium”, and the third luminance table of “reduction rate; small” are as follows: For example, a change corresponding to the change illustrated in FIG. 25 is set in advance.
  • specific brightness control parameter values included in each brightness table TB include, for example, the number of treatments by age of macular degeneration (for example, URL “http://homepage3.nifty.com/SAI-EYE-CLINIC/ It is preferable to set according to the contents such as “page / ohan / ohan.html”).
  • specific values of the first reduction rate threshold and the second reduction rate threshold may be set in advance based on, for example, statistical or empirical numerical values.
  • control unit 21 controls the blue light based on the age and the like indicated by the age data Sage and the current time indicated by the time data St, and the luminance table TB corresponding to the age and the like.
  • the brightness table designating signal for designating is generated.
  • the control unit 21 when the age indicated by the age data Sage is an age corresponding to the above-mentioned “child”, the control unit 21 is generally considered to be easily affected by external light or the like because the child's eyes are in the process of growth. It is said to be more sensitive than adult eyes.
  • the pupil of the eye which is supposed to become smaller with age, is larger among children, and it is said that external light is more likely to enter the eye than adult eyes.
  • the eye shows that the transmittance of the blue light is high. Therefore, in this case, the control unit 21 generates a luminance table designation signal for designating the first luminance table TB1 having the above “reduction rate;
  • the control unit 21 generates a luminance table designating signal for designating the first luminance table TB1 having the “reduction rate; large” or the second luminance table TB2 having the “reduction rate; Output.
  • the control unit 21 when the age indicated by the age data Sage is the age of the “elderly person”, if the age data Sage or the like indicates that the user is suffering from age-related macular degeneration, for example, The blue light itself is cut by the macular degeneration. Accordingly, in this case, the control unit 21 generates a luminance table designation signal for designating the third luminance table of “reduction rate; small” and outputs the luminance table designation signal to the recording unit 24. In this case, the control unit 21 generates the blue light control on / off signal for turning off the blue light control itself according to the third embodiment without outputting the luminance table designation signal, and You may output to the blue light control determination part 30.
  • the blue light control determination unit 30 the recording unit 24, and the blue light control pixel value update unit 31
  • the blue light in the image displayed on the display 23 based on the age indicated by the age data Sage is generated. Appropriately controlled.
  • the luminance of the LEDs constituting the backlight of the display 23 (brightness) can be reduced. ) May be reduced partially or entirely in the image to reduce the luminance of the blue light.
  • the control unit 21 controls the luminance of the LED along the change illustrated in FIG. 25, for example.
  • the display 23 displays either the color correction image information Scl output from the blue light control determination unit 30 or the blue light control image information Sbc output from the blue light control pixel value update unit 31 as display information Sout. And an image corresponding to the display information Sout is displayed.
  • control processing according to the third embodiment will be described with reference to FIG.
  • the control process shown in FIG. 26 is started, for example, from the timing when the power switch of the display device D3 is turned on, and is mainly executed mainly by the control unit 21.
  • the age data Sage is acquired through the age data acquisition unit 27 (step S15), and further through the time acquisition unit 29.
  • the time data St is acquired (step S16).
  • the time data St in step S16 is periodically executed at a predetermined time interval, for example, but the acquisition of the age data Sage in step S15 is, for example, the timing when the power switch of the display device D3 is turned on. It is preferable to execute every time.
  • step S17 when the image information Sin is input from the image generation unit 20, it is first taken into the contrast correction determination unit 22 (step S17). Then, the control unit 21 determines whether or not to execute the contrast correction according to the third embodiment, generates the contrast correction on / off signal corresponding to the determination result, and generates the control signal Sc. It outputs to the contrast correction
  • step S18 When the contrast correction according to the third embodiment is not executed in the determination in step S18 (step S18; NO), the contrast correction determination unit 22 outputs the image information Sin as it is to the color correction determination unit 26, and the control unit 21 further The process proceeds to step S21 described later.
  • the contrast correction determination unit 22 outputs the image information Sin to the contrast correction pixel value update unit 25 and the control unit. 21 generates the intensity correction table designation signal in accordance with the above-described standard, and outputs it as the control signal Sc to the recording unit 24, thereby designating the intensity correction table TC required at that time (step S19).
  • the intensity correction table TC indicated by the intensity correction table designation signal from the control unit 21 is selected (in other words, the intensity of contrast correction is designated), and the selected intensity is selected.
  • the intensity correction parameter included in the correction table TC is output to the contrast correction pixel value update unit 25.
  • the contrast correction pixel value update unit 25 uses the intensity correction parameter output from the recording unit 24 to calculate the pixel value of each color component in each pixel included in the image information Sin output from the contrast correction determination unit 22. Is updated to the pixel value indicated by (step S20), and is output to the color correction determination unit 26 as the contrast-corrected image information Scc.
  • control unit 21 determines whether or not to perform color correction according to the third embodiment in accordance with the above-described criteria, generates the color correction on / off signal corresponding to the determination result, and generates the control signal Sc. Is output to the color correction determination unit 26 (step S21).
  • the color correction determination unit 26 uses the contrast correction image information Scc output from the contrast correction pixel value update unit 25. The data is output to the blue light control determination unit 30 as it is, and the control unit 21 proceeds to step S24 described later.
  • step S21 when color correction according to the third embodiment is executed in the determination in step S21 (step S21; YES), the color correction determination unit 26 outputs the contrast correction image information Scc to the color correction pixel value update unit 28, and The control unit 21 generates the color correction table designation signal in accordance with the above-described criteria, and outputs it as the control signal Sc to the recording unit 24, thereby designating the color correction table TL required at that time (step S22). ).
  • the color correction table TL indicated by the color correction table designation signal from the control unit 21 is selected (in other words, the color correction mode is designated), and the selected color correction is performed.
  • the color correction parameters included in the table TL are output to the color correction pixel value update unit 28.
  • the color correction pixel value update unit 28 outputs the pixel values of the respective color components in the pixels included in the contrast correction image information Scc output from the color correction determination unit 26 to the color output from the recording unit 24.
  • the pixel value indicated by the correction parameter is updated (step S23), and is output to the blue light control determination unit 30 as the color correction image information Scl.
  • the control unit 21 determines whether or not to execute the blue light control according to the third embodiment in accordance with the above-described criterion, and generates and controls the blue light control on / off signal corresponding to the determination result.
  • the signal Sc is output to the blue light control determination unit 30 (step S24).
  • the blue light control determination unit 30 outputs the color correction image information output from the color correction pixel value update unit 28. Scl is output as it is to the display 23 as display information Sout (step S27).
  • step S24 when the blue light control according to the third embodiment is executed in the determination in step S24 (step S24; YES), the blue light control determination unit 30 outputs the color correction image information Scl to the blue light control pixel value update unit 31.
  • the control unit 21 generates the luminance table designation signal in accordance with the above-described standard, and outputs it to the recording unit 24 as the control signal Sc, thereby designating the luminance table TB required at that time (step). S25).
  • the luminance table TB indicated by the luminance table designation signal from the control unit 21 is selected (in other words, the blue light reduction rate is designated), and the selected luminance table TB is selected.
  • the blue light control pixel value update unit 31 is output to the blue light control pixel value update unit 31.
  • the blue light control pixel value update unit 31 outputs the pixel value of each color component in each pixel included in the color correction image information Scl output from the blue light control determination unit 30 from the recording unit 24.
  • the pixel value indicated by the brightness control parameter is updated (step S26), and is output as display information Sout to the display 23 as the blue light control image information Sbc.
  • the display 23 receives either the color correction image information Scl or the blue light control image information Sbc as display information Sout, and displays an image corresponding to the display information Sout (step S27). Thereafter, the control unit 21 ends the control process according to the third embodiment.
  • the luminance of the blue light in the image information Sin is reduced based on the age data Sage, and is equivalent to the image information Sin based on the age data Sage. Display the image to be played. Therefore, the image can be displayed in an easy-to-view state according to the age of the user who visually recognizes the image and while protecting the user's eyes.
  • any one of blue light control, contrast correction, and color correction is executed on the image information Sin to display an image.
  • the image can be displayed in an easy-to-view state according to the age of the user who visually recognizes the image and while effectively protecting the user's eyes.
  • the luminance reduction rate of the blue light is increased and the contrast correction intensity is set to “weak”. Therefore, the eyes of a child or an adult can be protected and an image can be displayed in a contrast state that is easy to see.
  • the age indicated by the age data Sage is an age corresponding to “adult”
  • the luminance reduction rate of the blue light is increased
  • the contrast correction strength is increased
  • the brightness (brightness) of the display 23 is increased. If the control is performed to lower the image, it is possible to display an image while reducing eye fatigue while ensuring the visibility as an image.
  • the luminance reduction rate of blue light is Since the contrast correction strength is set to “medium” or “strong” and the image is displayed with the color corrected based on the age, the image can be displayed in an easy-to-view state for the elderly.
  • the control of the blue light is executed based on the age data Sage and the time data St (see FIG. 25)
  • another control process is executed based on the age data Sage and the time data St.
  • the image can be displayed in a state that is easy to see according to the age of the user who visually recognizes the image, protects the user's eyes, and matches the internal rhythm through the visual sense.
  • the display image information is generated so that the luminance of the blue light during the activity time (for example, daytime) of the user viewing the image is relatively higher than the luminance during the time other than the activity time ( In the case of FIG. 25), the image can be displayed in accordance with the activity time of the user who visually recognizes the image and the internal rhythm at other times.
  • the blue light control according to the third embodiment it is preferable to execute the blue light control according to the third embodiment by changing the change shown in FIG. 25 upside down in FIG. is there.
  • new age data Sage when new age data Sage is acquired, if a process is executed again to display an image based on the new age data Sage, including any control of blue light, a new one is displayed.
  • the image can be appropriately displayed in an easy-to-view state according to the age of the user who visually recognizes the image, while protecting the user's eyes.
  • the transmittance of blue light is increased when the cataract is treated. Therefore, even for a user of an age corresponding to “elderly”, it is preferable to execute the blue light control with the reduction rate being “large” or “medium”.
  • each of the intensity correction table TC, the color correction table TL, and the luminance table TB are not determined by the user's age as in the third embodiment. If the configuration corresponding to each of the parameters is input, the control processing according to the third embodiment can be executed according to the preference of the user who visually recognizes the image, and the display mode of the image is adjusted according to the user. be able to.
  • the third embodiment described above can have various aspects.
  • contrast correction for the image information Sin (by the contrast correction determination unit 22 and the contrast correction pixel value update unit 25) ⁇ color correction (the color correction determination unit 26 and the color correction pixel value update unit 28). )) ⁇ blue light control (by the blue light control determination unit 30 and the blue light control pixel value update unit 31).
  • the order of contrast correction, color correction, and blue light control may be changed in any way, or contrast correction, color correction, and blue light control may be performed on the image information Sin. It is also possible to execute the processing simultaneously in parallel, and superimpose the execution results at the end to output them as display information Sout to the display 23.
  • the blue light control according to the third embodiment can be configured not to be performed on a daily basis (see FIG. 25) but on a monthly or seasonal basis.
  • a monthly or seasonal luminance table is recorded in the recording unit 24 and used.
  • the blue light may be controlled uniformly, for example, at a preset reduction rate without using the time data St.
  • control processing according to the third embodiment can be similarly applied to, for example, the HLS color space, HSV color space, or YCbCr color space including luminance (Y). is there.
  • the programs corresponding to the flowcharts shown in FIGS. 10, 22 and 26 are recorded on a recording medium such as an optical disk, or acquired and recorded via a network such as the Internet,
  • a general-purpose microcomputer or the like the microcomputer or the like is executed by the control unit 2 or the control unit 21, the switching control unit 3, the contrast correction determination unit 22, and the contrast correction pixel value update unit 25 according to each embodiment.
  • Color correction determination unit 26, age data acquisition unit 27, color correction pixel value update unit 28, blue light control determination unit 30, blue light control pixel value update unit 31, pixel value update unit 6, and switching unit 7. Is also possible.
  • the present invention can be used in the field of display devices, and is particularly remarkable when applied to the field of display device control for the purpose of maintaining / adjusting a user's internal rhythm. An effect is obtained.

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Abstract

L'invention concerne un dispositif de traitement d'image, qui peut maintenir/réguler de manière optimale des rythmes corporels par l'intermédiaire de la vue d'une personne regardant un dispositif d'affichage qui génère une lumière bleue. Le dispositif de traitement d'image comporte une unité de commande de commutation 3 qui acquiert des informations d'image Sin correspondant à une image à afficher sur un dispositif d'affichage 4, une unité d'acquisition de temps 10 qui acquiert des informations de temps indiquant l'heure du jour, le jour, le mois ou la saison, et une unité de commande 2 qui, sur la base des informations de temps acquises, commande la luminosité correspondant à l'une quelconque des composantes de couleur dans les informations d'image Sin.
PCT/JP2015/072711 2014-08-12 2015-08-10 Dispositif de traitement d'image, dispositif d'affichage, procédé de traitement d'image, et programme de traitement d'image WO2016024579A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2014-164586 2014-08-12
JP2014164586 2014-08-12
JP2014-164587 2014-08-12
JP2014164587A JP2016040581A (ja) 2014-08-12 2014-08-12 画像処理装置、表示装置並びに画像処理方法及び画像処理用プログラム
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CN113838411A (zh) * 2021-10-12 2021-12-24 深圳市优聚显示技术有限公司 一种基于人因照明的led显示屏亮度调节方法、系统及设备

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