EP2960892B1 - Dispositif d'affichage d'image - Google Patents

Dispositif d'affichage d'image Download PDF

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Publication number
EP2960892B1
EP2960892B1 EP13875666.3A EP13875666A EP2960892B1 EP 2960892 B1 EP2960892 B1 EP 2960892B1 EP 13875666 A EP13875666 A EP 13875666A EP 2960892 B1 EP2960892 B1 EP 2960892B1
Authority
EP
European Patent Office
Prior art keywords
pixel
period
light
image
luminance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13875666.3A
Other languages
German (de)
English (en)
Other versions
EP2960892A1 (fr
EP2960892A4 (fr
Inventor
Yoshihiro Hanada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Publication of EP2960892A1 publication Critical patent/EP2960892A1/fr
Publication of EP2960892A4 publication Critical patent/EP2960892A4/fr
Application granted granted Critical
Publication of EP2960892B1 publication Critical patent/EP2960892B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G09G3/02—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
    • G09G3/025—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen with scanning or deflecting the beams in two directions or dimensions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3433—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 by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/346—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 by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
    • 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

Definitions

  • the present invention relates to an image display apparatus configured to draw a projection image, for example, by driving a mirror, which reflects laser light, in each of a horizontal direction and a vertical direction.
  • Patent Literature 1 Japanese Patent Application Laid Open No. H6-61562
  • a light scanning device includes: a light source that emits the light beams; a scanner that scans the light beams from the light source in a first direction and a second direction substantially perpendicular to the first direction; a pixel-timing-signal generating section that generates a pixel timing signal indicative of a timing at which the light beam enters for every pixel region to be formed in response to the image signals; a pulse-signal generating section that generates a pulse signal having a pulse width corresponding to time shorter than the shortest of the time during which the light beam passes through the pixel region on the basis of the pixel timing signal; and a driving-signal generating section that generates a driving signal for driving the light source in accordance with the pulse signal and the image signal (cf. Abstract).
  • WO 2012/111698 A1 discloses that a scanning image display device has: a light source; a scanning means that scans a light beam emitted from the light source and displays an image on a projection plane; and a control means that controls the emission duration of the light beam from the light source for each pixel of the image, as well as controlling the emission duration for each pixel in response to the scanning angle of the scanning means (cf. Abstract).
  • a laser imaging apparatus comprises: a laser diode which is operable in a linear laser region and a lower nonlinear LED region; means for applying to the laser diode a digital image input signal having a first range of digital values which would operate the laser diode in the linear region and having second and third lower ranges of digital values below the first range of values which would operate the laser diode in the nonlinear region; and control means for controlling the laser diode to operate in an amplitude modulation mode in the linear operating region, when the digital image input signal has a value in the first range of digital values, to operate, in one of a pulse amplitude modulation mode (PAM), or a pulse width modulation (PWM) mode in the linear region, when the digital image input signal has a value in the second range of digital values, and to operate in the other of the PAM or PWM modes in the linear region when the digital input signal has a value in the third range of digital values (cf. Claim 1, Abstract).
  • PAM pulse amplitude modulation mode
  • the present invention provide an image display apparatus according to claim 1. Further embodiments of the invention are described in the dependent claims.
  • the image display apparatus is an image display apparatus configured to display an image due to optical scanning by driving a mirror such as, for example, a micro electro mechanical systems (MEMS) mirror, which reflects a light beam irradiated from a light source, in each of a main scanning direction and a sub scanning direction, which crosses the main scanning direction.
  • a mirror such as, for example, a micro electro mechanical systems (MEMS) mirror, which reflects a light beam irradiated from a light source, in each of a main scanning direction and a sub scanning direction, which crosses the main scanning direction.
  • MEMS micro electro mechanical systems
  • a controlling device which is provided with, for example, a memory, a processor, and the like, controls the light source to change an irradiation period of the light beam with respect to a pixel drawing period, which is a period for drawing each of a plurality of pixel data corresponding to the image to be displayed, on the basis of luminance of a one-frame image (corresponding to the "entire image” according to the present invention) to be displayed.
  • a pixel drawing period which is a period for drawing each of a plurality of pixel data corresponding to the image to be displayed, on the basis of luminance of a one-frame image (corresponding to the "entire image” according to the present invention) to be displayed.
  • luminance of the one-frame image means luminance that represents the image. Specifically, for example, average luminance of the one-frame image or the like corresponds to the "luminance of the one-frame image".
  • the output of the light source is reduced according to the reduction width in many cases. Then, due to the light output characteristic of the light source, the flickering possibly occurs in a relatively low luminance region in the drawn image.
  • the light source is controlled by the controlling device to change the irradiation period of the light beam with respect to the pixel drawing period, on the basis of the luminance of the one-frame image to be displayed. Specifically, for example, if the luminance of the one-frame image is halved, the controlling device controls the light source to change the irradiation period of the light beam to the pixel drawing period to half. Then, in view of one pixel drawing period, a light amount of the light beam irradiated is halved. It is thus possible to halve the luminance of the one-frame image without reducing the light amount of the light beam.
  • the image display apparatus in the embodiment since the irradiation period may be changed, there is no need to separately install a special element. Therefore, according to the image display apparatus in the embodiment, the image flickering can be relatively easily suppressed.
  • the irradiation period of the light beam with respect to the pixel drawing period is changed in order to change the luminance of the one-frame image, it is desirable to make different starting times of the irradiation period in the pixel drawing period, in two continuous frame periods. Such a configuration makes it possible to suppress uneven luminance in one pixel, which is extremely useful in practice.
  • a controlling device which is provided with, for example, a memory, a processor, and the like, controls the light source to make an irradiation period of the light beam to a pixel drawing period, which is a period for drawing one of a plurality of pixel data corresponding to the image to be displayed, 1/n of the pixel drawing period, if the one pixel data has 1/n (wherein n is a positive real number) of maximum luminance, wherein n is a positive real number.
  • the "one pixel data” means luminance in the corresponding pixel drawing period, i.e. luminance associated with the pixel data.
  • the aforementioned Background Art describes the technical problems that can occur if the luminance of the one-frame image is reduced.
  • the same technical problem caused by the light output characteristic of the light source possibly occurs even when pixels with relatively low luminance are drawn, which has been found from the study of the present inventors.
  • the light source is controlled by the controlling device to make the irradiation period of the light beam to the pixel drawing period for drawing the one pixel data 1/n of the pixel drawing period, if the luminance associated with the one pixel data is 1/n of the maximum luminance.
  • the controlling device controls the light source to make the irradiation period of the light beam to the pixel drawing period half. Then, in view of one pixel drawing period, the light amount of the light beam irradiated is halved. It is thus possible to set the luminance of the pixel to half the maximum luminance without reducing the light amount of the light beam.
  • the image flickering caused by the drawing of the pixels with relatively low luminance can be relatively easily suppressed.
  • the light amount of the light beam outputted from the light source is determined according to each of the pixel data corresponding to the image to be displayed, in many cases.
  • the controlling device controls the light source to change the irradiation period of the light beam to the pixel drawing period associated with the one pixel data to 1/n, and to irradiate the light beam with the light amount that is n times the light amount of the light beam corresponding to the luminance associated with the one pixel data.
  • the controlling device may multiply, by n, the luminance associated with the pixel data used to determine the light amount of the light beam, thereby irradiating the light beam with the light amount that is n times the original light amount.
  • the controlling device may multiply, by n, a gain associated with an amplifier, which is electrically connected between a light source and a power supply configured to supply electric power to the light source, thereby irradiating the light beam with the light amount that is n times the original light amount.
  • An image display apparatus according to a first example of the present invention will be explained with reference to FIG. 1 to FIG. 4 .
  • FIG. 1 is a block diagram illustrating the configuration of the image display apparatus according to the first example.
  • an image display apparatus 1 is provided with a deflector 11, a deflector controller 12, a video processor 13, a current output D/A converter (DAC) 14, a laser source 15, and an illuminance sensor 16.
  • DAC current output D/A converter
  • the deflector 11 is provided with a MEMS mirror (hereinafter referred to a "mirror" as occasion demands) and a drive apparatus configured to drive the mirror.
  • the drive apparatus of the deflector 11 drives the mirror according to a horizontal drive signal and a vertical drive signal, which are outputted from the deflector controller 12. More specifically, the drive apparatus applies an electric field to a piezoelectric thin film formed on a substrate of the mirror, according to the horizontal drive signal and the vertical drive signal, thereby driving the mirror. Since various known aspects can be applied to a method of driving the mirror, an explanation of the details of the method will be omitted.
  • the horizontal drive signal is a sinusoidal signal
  • the vertical drive signal is a sawtooth signal.
  • the deflector 11 is thus driven by resonant vibration in a sinusoidal manner in a horizontal direction, and is driven in a sawtooth manner in a vertical direction.
  • a scanning trajectory resulting from the drive of the mirror a scanning direction associated with the horizontal direction is reversed for each line. This results in acquisition of a relatively high-resolution projection image even if horizontal resonance frequency associated with the horizontal drive signal is relatively low.
  • the "projection image” is an image displayed in a period other than a vertical blanking period in an optical scanning range.
  • the video processor 13 is inputted with a plurality of pixel data (hereinafter referred to as "input pixel data" as occasion demands) corresponding to an image to be displayed.
  • the video processor 13 is also inputted with an illuminance signal indicating an illuminance or degree of illumination detected by the illuminance sensor 16.
  • the video processor 13 generates pixel data to be outputted (hereinafter referred to as "output pixel data" as occasion demands) to the current output DAC 14.
  • the current output DAC 14 supplies a drive current, which is proportional to the output pixel data, to the laser source 15. As a result, laser light with a light amount corresponding to the output pixel data is irradiated from the laser source 25 to the mirror.
  • the current output DAC 14 is provided with a power supply configured to supply the drive current to the laser source 15, and an amplifier configured to amplify the drive current outputted from the power supply.
  • the video processor 13 changes average luminance of a one-frame image to be displayed, on the basis of the illuminance indicated by the illuminance signal.
  • the change in the average luminance of the one-frame image may be realized, specifically, for example, by reducing the average luminance of the one-frame image to predetermined luminance, on condition that the illuminance becomes lower than a predetermined threshold value.
  • the average luminance of the one-frame image to be displayed is changed on the basis of the illuminance, which makes it possible to display an image with luminance suitable for a place in which the image display apparatus 1 is located. It is extremely useful in practice.
  • a value of the drive current supplied to the laser source 15 is in a range of a region in which the linearity of a light output characteristic associated with the laser source 15 is maintained (i.e. a linear region).
  • the input pixel data is reduced according to the reduction width to generate the output pixel data in many cases.
  • the drive current which is proportional to the output pixel data, is outputted from the current output DAC 14.
  • the laser source 15 is supplied with a current that is smaller than a current corresponding to the input pixel data, and the average luminance of the one-frame image to be displayed can be reduced.
  • the light output characteristic is not linear, and the linearity is possibly deteriorated as the drive current is reduced.
  • some green semiconductor laser has a light output characteristic as illustrated in FIG. 2 .
  • the green semiconductor laser has significantly deteriorated linearity if the drive current is less than or equal to one quarter of the maximum value.
  • FIG. 2 there is drawn a ratio of a measured value to an ideal value (i.e. a value based on the assumption that the light output characteristic is linear).
  • an irradiation period of the laser light with respect to a pixel period which is a period for drawing one output pixel data, is reduced according to the reduction width.
  • the video processor 13 outputs one input pixel data as the output pixel data without change, from the start of one pixel period corresponding to the one input pixel data to a lapse of half the one pixel period.
  • the laser light is emitted from the laser source 15 from the start of the one pixel period to the lapse of half the one pixel period.
  • the laser light is not emitted (i.e. lights-off) from the lapse of half the one pixel period to the end of the one pixel period (refer to FIG. 3 ).
  • the average luminance of the one pixel period is half the luminance of the corresponding one input pixel data.
  • the video processor 13 thus makes different starting times of laser-light-irradiation in the pixel period, in two continuous frame periods, for example, as illustrated in FIG. 4 .
  • Such a configuration makes it possible to average luminance distributions in the two continuous frame periods.
  • the "video processor 13" and the “pixel period” according to the example are respectively one example of the "controlling device” and the “pixel drawing period” according to the present invention.
  • the "current output DAC 14" and the “laser source 15" according to the example are one example of the "light source” according to the present invention.
  • An image display apparatus according to a second example of the present invention will be explained.
  • the second example is configured in the same manner as in the first example, except that the video processor 13 performs a different process.
  • the same explanation as that in the first example will be omitted, and basically, only a different point will be explained.
  • the video processor 13 controls the current output DAC 14 to change the irradiation period of the laser light to the pixel period to 1/n, and to irradiate the laser light with a light amount that is n times a laser amount corresponding to the one input pixel data.
  • pixel data obtained by multiplying the one input pixel data by n may be outputted to the current output DAC 14, as the output pixel data.
  • a gain associated with an amplifier provided for the current output DAC 14 may be multiplied by n.
  • the video processor 13 outputs image data with luminance that is twice the luminance of the one input pixel data, as the output pixel data, from the start of one pixel period corresponding to the one input pixel data to a lapse of half the one pixel period.
  • the video processor 13 then outputs zero data as the output pixel data, from the lapse of half the one pixel period to the end of the one pixel period.
  • the laser light with a light amount that is twice the laser amount corresponding to the one input pixel data is emitted from the laser source 15, from the start of the one pixel period to the lapse of half the one pixel period.
  • the laser light is not emitted (i.e. lights-off) from the lapse of half the one pixel period to the end of the one pixel period.
  • the average luminance of the one pixel period is equal to the luminance of the corresponding one input pixel data.
  • the laser source 15 can be driven in a drive current region in which the light output characteristic of the laser source 15 has good linearity.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Claims (3)

  1. Appareil d'affichage d'image (1) conçu pour afficher une image due au balayage optique par l'entraînement d'un miroir (11) qui reflète un faisceau lumineux provenant d'une source de lumière, dans chacune d'une direction de balayage principale et d'une direction de balayage secondaire, qui traverse la direction de balayage principale, ledit appareil d'affichage d'image (1) comprenant :
    un dispositif de commande (13) conçu pour régler une période d'irradiation du faisceau lumineux à une période d'extraction de pixels, qui est une période pour l'extraction d'un parmi une pluralité de données de pixels correspondant à l'image à afficher à 1/n de la période d'extraction de pixels lorsque la luminance d'une donnée de pixel est égale à 1/n de la luminance maximum, n représentant un nombre réel positif, et pour contrôler la source de lumière (14, 15) pour irradier le faisceau lumineux avec une quantité de lumière qui est n fois une quantité de lumière du faisceau lumineux correspondant au pixel dans la période d'irradiation réglée à 1/n de la période d'extraction de pixels,
    caractérisé en ce que ledit dispositif de commande (13) est conçu pour démarrer l'irradiation d'un pixel dans une période d'extraction de pixels à différents moments dans deux périodes de trames consécutives.
  2. Appareil d'affichage d'image (1) selon la revendication 1, dans lequel la source de lumière (14, 15) comprend :
    une alimentation ; et
    un amplificateur conçu pour régler une valeur de courant générée par l'alimentation à une valeur correspondant à la donnée de pixel et
    ledit dispositif de commande (13) étant en outre conçu pour multiplier un gain associé à l'amplificateur par n, afin de contrôler la source de lumière (14, 15) pour irradier le faisceau lumineux avec la quantité de lumière qui est n fois.
  3. Appareil d'affichage d'image (1) selon l'une des revendications 1 à 2, dans lequel ledit dispositif de commande (13) est conçu pour contrôler la source de lumière (14, 15) afin de changer un diamètre de point du faisceau lumineux selon la période d'irradiation.
EP13875666.3A 2013-02-20 2013-02-20 Dispositif d'affichage d'image Not-in-force EP2960892B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/054183 WO2014128865A1 (fr) 2013-02-20 2013-02-20 Dispositif d'affichage d'image

Publications (3)

Publication Number Publication Date
EP2960892A1 EP2960892A1 (fr) 2015-12-30
EP2960892A4 EP2960892A4 (fr) 2016-08-24
EP2960892B1 true EP2960892B1 (fr) 2018-10-10

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Application Number Title Priority Date Filing Date
EP13875666.3A Not-in-force EP2960892B1 (fr) 2013-02-20 2013-02-20 Dispositif d'affichage d'image

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EP (1) EP2960892B1 (fr)
JP (1) JP6085021B2 (fr)
WO (1) WO2014128865A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325383A (en) * 1993-05-17 1994-06-28 Eastman Kodak Company Laser diode operated in hybrid modulation modes
JP2001264660A (ja) * 2000-03-23 2001-09-26 Matsushita Electric Ind Co Ltd 映像表示装置
JP4929738B2 (ja) * 2005-04-18 2012-05-09 セイコーエプソン株式会社 光走査装置、光走査装置の制御方法及び画像表示装置
JP4914083B2 (ja) * 2005-06-30 2012-04-11 キヤノン株式会社 光波長変換装置、光波長変換方法、及びそれを用いた画像形成装置
JP5115044B2 (ja) * 2007-06-13 2013-01-09 セイコーエプソン株式会社 画像表示装置及び画像表示方法
US8213049B2 (en) * 2007-08-02 2012-07-03 Canon Kabushiki Kaisha Image forming apparatus
CN102812508A (zh) * 2010-04-26 2012-12-05 日本电气株式会社 图像显示设备和发光定时控制方法
JP5687880B2 (ja) * 2010-11-08 2015-03-25 船井電機株式会社 画像表示装置
US20130229630A1 (en) * 2010-12-13 2013-09-05 So Nishimura Projector and control method
WO2012111698A1 (fr) * 2011-02-18 2012-08-23 日本電気株式会社 Dispositif d'affichage d'images de balayage et procédé d'affichage d'images associé

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JPWO2014128865A1 (ja) 2017-02-02
EP2960892A1 (fr) 2015-12-30
EP2960892A4 (fr) 2016-08-24
WO2014128865A1 (fr) 2014-08-28
JP6085021B2 (ja) 2017-02-22

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