WO2010072415A1 - Anzeigesystem mit circadianer wirkung auf den menschen - Google Patents
Anzeigesystem mit circadianer wirkung auf den menschen Download PDFInfo
- Publication number
- WO2010072415A1 WO2010072415A1 PCT/EP2009/009259 EP2009009259W WO2010072415A1 WO 2010072415 A1 WO2010072415 A1 WO 2010072415A1 EP 2009009259 W EP2009009259 W EP 2009009259W WO 2010072415 A1 WO2010072415 A1 WO 2010072415A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- display system
- wavelength range
- unit
- display
- Prior art date
Links
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
- G09G3/20—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
- G09G3/2003—Display of colours
-
- 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
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133624—Illuminating devices characterised by their spectral emissions
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
-
- 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
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- 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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
Definitions
- the present invention relates to a display system, in particular a monitor, screen or projector for the optical display of text and / or image information, which is designed to influence the human Circa dianrhythmik.
- LC displays liquid crystal displays
- OLED displays on the one hand are very energy-efficient and on the other hand allow excellent color rendering, these displays in contrast to conventional CCFL-illuminated displays (cathode ray tubes) emit blue light with a very similar spectrum as absorbed by the circadian photoreceptors in the eye (see Figure 1).
- the biological effect of light differs considerably from the visual effect: light triggers the human's internal clock according to daily, weekly, and seasonal rhythms.
- the influence of the body's own (for example circadian) rhythm through the light takes place via the skin and eyes.
- Communication with the various body systems relies on the release of the hormone melatonin into the bloodstream (Rea M.: "Light much more than vision” in Light and Human Health, 5 th International Lighting Research Symposium, Paolo Alto, The Lighting Research Office of the Electric Power Research Institute, 2002, pp. 1-15).
- FIG. 2 The sensitivity of this circadian photoreceptor as a function of the wavelength is shown in FIG. 2: Here, the relative sensitivity over the wavelength in nanometers is plotted; this shows a maximum of melatonin suppression and thus of circadian activation at a wavelength of 464 nm, ie of about 460 nm, which corresponds to blue light (Brainard G. et al.: "Action spectrum for melatonin regulation in humans : Evidence for a novel circadian photoreceptor. "Journal of Neuroscience 21 (2001), No. 16, pp. 6405-6412; Thapan, K .:” An action spectrum for melatonin suppression: evidence for a novel non-rod, non-cone photoreceptor system in humans. ", Journal of Physiology, 535 (2001), No. 1, pp. 261-267).
- melatonin The production of melatonin is suppressed by the influence of light; Melatonin triggers tiredness (an increase in melatonin is thus sleep-inducing) and thus controls the sleep-wake rhythm as well as other circadian rhythms (Wirtz-Justice A.
- Another essential basis of the present invention is the color perception of humans: the color perception of humans in photopic vision (bright light) is primarily a reaction of the cones on the retina of the eye to incident light. Bright light stimulates the three types of cones in the eye (so-called K, M, L cones). The three absorption curves of the individual types of cones lie in the blue, green and red regions (see FIG. 3, which shows the degree of absorption of the individual conical types over the wavelength in nanometers). Each perceived color is associated with three specific signals. If all three types of cones are stimulated the same way, this is perceived by humans as white light.
- red, green and blue values red, green and blue values
- the actual, physical radiation flux of the three areas red (R), green (G) and blue (B) is not the same size, since the pin types are different sensitive (the highest sensitivity of the pin is for example 555 nm ). It is thus essential that different light mixtures (ie different light spectra) can appear the same to the human eye, although the respective spectral composition is different in the visible range (ie approximately from 380 to 750 nm).
- metameric light spectrometers are understood as meaning different light spectra (ie light spectra which differ in their spectral composition or in the intensities of the individual wavelengths over the above-mentioned wavelength range), but which appear the same to the human observer. So cause the same color appeal.
- color stimulation is understood to mean the color sensation produced by direct irritation of the retina of the eye due to the incident physical radiation of the visible light (ie due to the incident light spectrum).
- the present invention can also be realized on the basis of other (additive) color spaces.
- more than three primary colors can also be used for color mixing, which leads to a larger covered area in the CIE color space.
- a realization on the basis of subtractive color models (for example by using an additional narrow-band 464 nm bandpass filter in front of the display area) is also possible.
- a display system first comprises a display unit (eg LC screen or LCD) and a lighting unit (eg arrangement of a plurality of light-emitting diodes, LEDs, with different spectrums) which illuminates this display unit on the basis of an additive color synthesis (eg RGB color synthesis) with a predetermined light spectrum in blue, green and red area).
- a display unit eg LC screen or LCD
- a lighting unit eg arrangement of a plurality of light-emitting diodes, LEDs, with different spectrums
- RGB color synthesis additive color synthesis
- the lighting unit may itself (as a self-illuminating unit) form the display unit.
- a predetermined light spectrum can then be generated with the illumination unit whose light intensity is in the wavelength range of about 420 nm to 500 nm which is decisive for the circadian effect (the range can also be selected correspondingly narrower, compare FIG ) is reduced relative to the light intensity above and below this wavelength range (or even only relative to the light intensity above or below this wavelength range) such that the predetermined light spectrum is metameric to a light spectrum generated without this decrease.
- the light intensities above and / or below the decisive for the circadian wavelength range relative to the light intensity in this wavelength range so that the metamerism compared to without this increase (with physically corresponding light sources) generated Light spectrum results.
- the light intensity may be the intensity averaged over a wavelength interval.
- the illumination unit designed as a self-illuminating display unit (eg OLED screen)
- the individual elements emitting layers of the individual OLED pixels
- illumination subunits in the context of the present invention, are designed such that that they each generate the prescribed, predetermined light spectrum.
- the relative increase in intensity or reduction in intensity in the decisive wavelength range from 420 nm to 500 nm (or narrower), at least 10%, at least 30%, at least 70% or at least 90% (the higher this value, the higher more pronounced are the effects mentioned above).
- the lighting unit has a plurality of individual light sources (eg, in the case of a LED-illuminated LCD screen, the light-emitting diodes illuminating the non-self-illuminating display unit or with an OLED screen, the emitting layers of the individual image pixels), each with different light spectra, wherein the different light spectra differ in their maximum by at least a few 10 nm (the predetermined light spectrum is then by additive superposition with the individual light spectra of these light sources producible).
- individual light sources eg, in the case of a LED-illuminated LCD screen, the light-emitting diodes illuminating the non-self-illuminating display unit or with an OLED screen, the emitting layers of the individual image pixels
- the light sources, z. B. the four aforementioned light sources, within the scope of the invention with a suitable selection of the individual emission spectra also set so that white light can be generated by the additive superposition of their individual spectra.
- the LED-illuminated LCD may be a time-sequentially controlled liquid crystal screen which accordingly does not require a color filter attachment or even an LC screen formed with such a color filter attachment
- the emission spectra of the individual ones Select light sources so that the metamerism applies directly to the generated light spectrum (eg LCD without color filter attachment) or only after passage of the spectra through the corresponding optical elements or filters (eg LCD with color filter attachment).
- the absorption spectra of the corresponding optical elements or filters are known, this is readily possible.
- the illumination unit is designed such that it can be used to control a plurality of different predetermined, each can be generated to a generated without appropriate reduction and / or increase in intensity ranges light spectrum metameric light spectra. This can be achieved by a different mixing of the proportions of defined light sources or, for example, in the case of the LCD by a plurality of different sets of four LED light sources each (these then each having slightly different spectra).
- the perceived R / G components may also be generated by a combination other than a red and a green LED.
- the spectral sensitivity curves of the pins are relatively wide compared to the emission spectra of the LEDs, so that several differently colored LEDs "fit" into the sensitivity curve of a pin.
- the spectra can be changed depending on the time of day.
- LEDs As an alternative to such LEDs, however, it is also possible to use other illuminants with which the spectral relationships described in the context of the invention can be realized (for example "white” discharge lamps, ie fluorescent lamps with different emission spectra or with a different 464 nm component).
- illuminants with which the spectral relationships described in the context of the invention can be realized (for example "white” discharge lamps, ie fluorescent lamps with different emission spectra or with a different 464 nm component).
- the present invention thus utilizes the effect that different light mixtures can be metamers, ie appear the same to the eye, although their spectral composition is different.
- Uncolored parts of the image (especially white parts) can stimulate or even do not stimulate the circadian rhythms of the observer by a specific spectral composition, without changing the perceived color, or stimulating the circadian photoreceptors.
- achromatic components in particular: white are again generated.
- Figures 1 to 3 the basic considerations on which the present invention is based.
- Figure 4 shows a first, according to the invention modified liquid crystal flat display (flat display with RGB filters).
- FIG. 6 to 8 further aspects of the invention.
- the display unit 1 here has a diffuser element facing the illumination unit 2 or the light emitting diodes 3, with which a uniform illumination of the LC cells of the LC panel 6 (consisting of a two-dimensional matrix of such cells) is ensured.
- an RGB color filter 7 is arranged, which allows the color representation of a corresponding to be displayed on the display unit 1 text and / or image information.
- the exact mode of operation of the diffuser element, of the LC cell array and of the RGB color filter is known to the person skilled in the art.
- the liquid crystal panel display or the actual display elements of the display unit 1 have not been modified here, so it may be a conventional liquid crystal panel display.
- the color filters integrated in this flat display have not been removed for the primary colors red / green / blue (filter 7), since this is not possible without destroying the panel in the rules.
- a plurality of light sources 3 spatially distributed over the surface of the diffuser element may also be present for each of the spectral regions 3a to 3d.
- light-emitting diodes instead of light-emitting diodes, other types of light bulbs can also be used as light sources:
- the RGB components are each multiplied by a correction factor, whereby nonlinearities due to characteristics of the light sources and the eye sensitivity are compensated by applying appropriate characteristics. This can be done both in the control unit 5 and in the image signal adaption. sung unit 4.
- the display system according to the invention has a control unit 5 for the light sources or LEDs, in which the spectral characteristics of the
- the respective required intensity in the 460 nm range (more precisely in that wavelength range which is decisive for the circadian effect, see above), which is also referred to simply as the "460 nm desired value" here, is the one
- the desired light mixture (or composition) may be calculated (definition of the inventive lowering and / or raising of the circadian effective wavelength range, the range above and / or the range below (see above).)
- the individual light sources 3a to 3d can then be controlled (according to the selected raising and / or lowering degree).
- the image signal can also be optionally taken into account in the light mixture by using image content with a high uncoloured portion (ie for
- Text documents a different spectral composition of the light mixture or another predetermined light spectrum is selected.
- the consideration of the image signal can be realized by a continuous statistical evaluation of the current image content (with the shortest possible latency in the order of l / refresh rate) by the control unit 5 for determining the achromatic image components relative to the entire image area and selection of the other spectral composition Exceeding a threshold value. Also the spatial distribution the achromatic parts can be taken into account (eg large undisturbed area in the center of the picture has greater weight than unbounded areas.
- the other spectral composition is chosen so that it maps white correctly (but would lead to color distortions in color representations).
- the RGB image signal is therefore supplied to both the control unit 5 of the LEDs 3, and the Ricksignalanpassungs- unit 4 (and via this to the control unit 8 of the LC panel).
- the control unit 5 supplies an RGB vector, which represents the factors with which the RGB components of the image signal are modulated.
- a spectrometer In order to perform a calibration of the display system shown (this is usually required only once at startup), a spectrometer can be provided with which the exact spectral composition of the light spectra emitted by the individual light sources 3 can be determined. The spectra determined in this way then permit the exact determination of the intensity mixture or the setting of the predetermined light spectrum such that the above-described metamerism occurs.
- color filters are no longer integrated in the LC panel; rather, the image representation is effected by time-sequential representation of the red, green and blue components of the image and by synchronous backlighting in the corresponding spectral colors (a corresponding method is also used in single-chip DLP projectors, so that the present invention can be realized according to these).
- the LC panel must have enough short switching times.
- the switching times must be so short that at a given refresh rate each color component (red, green, blue) of the image can be displayed by the LC panel without being affected by the previous color component.
- a refresh rate of 60 Hz this means that the liquid crystals have to complete a complete cycle from black to white to black within 1/180 s.
- the control unit 5 for light sources is synchronized with the control unit 8 of the LC panel in order to ensure a correct time-sequential control of the individual spectral components.
- the basic colors used for color mixing span a polygon in the CIE color space.
- An example is an LC panel with 5 basic colors (maxima at 420, 500, 520, 550 and 620 nm), which is controlled by a suitable image signal with 5 components. This can be generated, for example, by means of computer graphics methods.
- the invention can also be implemented using projection systems (in particular: beamer with LED background illumination).
- the melatonin production in the human body is thus either promoted or reduced by targeted control of the spectrum emitted by the illumination unit.
- Concentration, fatigue and vigilance can be influenced by the display system according to the invention.
- enhancement or attenuation of melatonin suppression can be achieved by altering the light intensity in the region around 460 nm.
- some dynamics of the control of the lighting unit or of the predetermined light spectrum can be realized: For example, for an average Chronoty- pen a Melatoninabsenkung between 8 and 19 clock and in particular a Melatoninerhöhung from 19 clock to achieve a timely relaxation before the sleep phase.
- An important advantage of the presented display system according to the invention is the virtually invisible but physiologically effective change in the emission spectrum of the display system.
- the present invention can also be implemented in OLED-based display systems (or self-illuminating display units):
- OLED-based display systems or self-illuminating display units
- backlighting which is unavoidable in the case of transmissive LCD modules.
- An advantage of an OLED display is that actually only the driven pixel is lit and the background remains black.
- By deliberately adjusting the emitting color layers of the individual pixels (or illumination subunits) in the OLED display it is possible to provide differently circadian-effective RGB spectra, which bring about barely visible changes in the colors or a barely changed white.
- Fig. 6 shows the spectrum of a backlight of RGB LEDs.
- the latter have, in comparison to white (phosphorus layered) LEDs thus a different spectrum.
- the three primary colors of the LEDs can be clearly seen in the spectrum (FIG. 6).
- the spectrum of the white LED ( Figure 1) is more uniform over the entire wavelength range.
- FIG. 7 shows a CIE 1931 diagram of a white phosphor LED backlight or backlight LCD.
- the representable color space is defined by the vertices of the triangular triangle and can therefore only be done by shifting these vertices (by other primary colors with different saturation, ie more or less narrow-band spectrum), but not by pure mixing of existing basic colors.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011542719A JP2012513616A (ja) | 2008-12-23 | 2009-12-23 | 人間に概日効果をもたらす表示システム |
CN2009801555442A CN102301410A (zh) | 2008-12-23 | 2009-12-23 | 对人类产生生理作用的显示系统 |
US13/141,924 US8646939B2 (en) | 2008-12-23 | 2009-12-23 | Display system having circadian effect on humans |
EP09807707A EP2380161A1 (de) | 2008-12-23 | 2009-12-23 | Anzeigesystem mit circadianer wirkung auf den menschen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008062819.0 | 2008-12-23 | ||
DE102008062819 | 2008-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010072415A1 true WO2010072415A1 (de) | 2010-07-01 |
Family
ID=41822423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/009259 WO2010072415A1 (de) | 2008-12-23 | 2009-12-23 | Anzeigesystem mit circadianer wirkung auf den menschen |
Country Status (7)
Country | Link |
---|---|
US (1) | US8646939B2 (de) |
EP (1) | EP2380161A1 (de) |
JP (2) | JP2012513616A (de) |
KR (1) | KR20110098845A (de) |
CN (1) | CN102301410A (de) |
DE (1) | DE202009018852U1 (de) |
WO (1) | WO2010072415A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010039308A1 (de) * | 2010-08-13 | 2012-02-16 | Zumtobel Lighting Gmbh | Beleuchtungsanordnung mit verschiedenfarbigen Lichtquellen sowie Verfahren zum Betreiben einer derartigen Beleuchtungsanordnung |
WO2012080280A1 (fr) | 2010-12-17 | 2012-06-21 | Thales | Systeme de visualisation comprenant un eclairage de vigilance de nuit |
DE102011103639A1 (de) * | 2011-06-08 | 2012-12-13 | Diehl Aerospace Gmbh | Leuchte und Verfahren zur Erzeugung eines Leuchteffekts auf einer reflektierenden Oberfläche mittels einer Leuchte |
US9523802B2 (en) | 2014-09-26 | 2016-12-20 | Japan Display Inc. | Display device |
CN113209490A (zh) * | 2013-10-09 | 2021-08-06 | 昕诺飞控股有限公司 | 具有逼近白光的cri的无褪黑素抑制光源 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140109100A (ko) | 2013-03-05 | 2014-09-15 | 삼성디스플레이 주식회사 | 표시 장치 |
JP6391669B2 (ja) | 2013-04-04 | 2018-09-19 | サーケイディアン・ザークライト・インコーポレーテッド | 概日神経内分泌機能を保護するための照明システム |
US9410664B2 (en) | 2013-08-29 | 2016-08-09 | Soraa, Inc. | Circadian friendly LED light source |
KR20150061364A (ko) * | 2013-11-27 | 2015-06-04 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 표시 방법 |
EP3140829A1 (de) * | 2014-05-09 | 2017-03-15 | Thompson Licensing | Verfahren und vorrichtung zur anpassung der anzeigeeinstellungen einer anzeige gemäss umgebungsbeleuchtung |
US10475363B2 (en) | 2014-06-02 | 2019-11-12 | Apple Inc. | Displays with adaptive spectral characteristics |
CN107079546B (zh) | 2014-07-17 | 2020-04-21 | 飞利浦灯具控股公司 | 照明系统 |
KR102296918B1 (ko) * | 2014-11-03 | 2021-09-02 | 삼성디스플레이 주식회사 | 표시 장치, 이의 표시 제어 방법 및 장치 |
DK3271013T3 (en) * | 2015-03-19 | 2018-10-15 | Philips Lighting Holding Bv | BIO-HUE LAMP |
KR102399571B1 (ko) * | 2015-09-09 | 2022-05-19 | 삼성디스플레이 주식회사 | 표시 장치 및 그 구동 방법 |
DE202016001258U1 (de) * | 2016-02-26 | 2016-07-20 | Sven Hädel | Beleuchtungsvorrichtung mit circadianem Vollfarbdisplay |
US10600213B2 (en) * | 2016-02-27 | 2020-03-24 | Focal Sharp, Inc. | Method and apparatus for color-preserving spectrum reshape |
EP3466218A4 (de) | 2016-06-03 | 2020-01-22 | Musco Corporation | Vorrichtung, verfahren und system zur bereitstellung einer abstimmbaren biorhythmusbeleuchtung mit konstanter wahrgenommener helligkeit und farbe |
DE202016103849U1 (de) | 2016-07-15 | 2017-10-18 | Rp-Technik Gmbh | Rettungszeichenleuchte |
DE102017109247A1 (de) | 2017-04-28 | 2018-10-31 | Elmos Semiconductor Aktiengesellschaft | Verfahren zur Bestimmung der physikalischen Position einer Leuchtmittelgruppe innerhalb eines eindimensionalen Leuchtbands mit mehreren Leuchtmittelgruppen |
US10769817B2 (en) * | 2017-08-07 | 2020-09-08 | Samsung Display Co., Ltd. | Measures for image testing |
EP3449975A1 (de) * | 2017-08-28 | 2019-03-06 | BrainLit AB | Beleuchtungsvorrichtung |
CN109523908A (zh) * | 2017-09-19 | 2019-03-26 | 群创光电股份有限公司 | 显示装置 |
US20190209858A1 (en) * | 2018-01-10 | 2019-07-11 | Abl Ip Holding Llc | Circadian stimulus via image processing or algorithm |
WO2019140309A1 (en) | 2018-01-11 | 2019-07-18 | Ecosense Lighting Inc. | Switchable systems for white light with high color rendering and biological effects |
CN112088033A (zh) | 2018-01-11 | 2020-12-15 | 生态照明公司 | 具有昼夜节律效果的显示照明系统 |
US10930196B2 (en) * | 2018-04-19 | 2021-02-23 | Innolux Corporation | Display device and manufacturing method of display substrate |
CN116723376A (zh) * | 2018-06-07 | 2023-09-08 | 御眼视觉技术有限公司 | 高分辨率汽车透镜和传感器 |
EP3584784A1 (de) * | 2018-06-19 | 2019-12-25 | InterDigital VC Holdings, Inc. | Verfahren und vorrichtung zur verarbeitung von videosignalen gegen blaulichtgefahr |
CN108877690B (zh) * | 2018-06-26 | 2021-01-01 | 华显光电技术(惠州)有限公司 | 减小蓝光伤害的发光显示方法、装置、计算机和存储介质 |
US20220001200A1 (en) | 2018-11-08 | 2022-01-06 | Ecosense Lighting Inc. | Switchable bioactive lighting |
US11783748B2 (en) | 2018-11-08 | 2023-10-10 | Korrus, Inc. | Display lighting systems with bioactive lighting |
GB201901723D0 (en) * | 2019-02-07 | 2019-03-27 | Oxford Univ Innovation | Determing metameric settings for a non-linear light source |
US11257510B2 (en) * | 2019-12-02 | 2022-02-22 | International Business Machines Corporation | Participant-tuned filtering using deep neural network dynamic spectral masking for conversation isolation and security in noisy environments |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997001240A1 (en) | 1995-06-20 | 1997-01-09 | Thomson Consumer Electronics, Inc. | Back lit electronic viewfinder |
US20060152525A1 (en) | 2005-01-13 | 2006-07-13 | Woog Kenneth M | Viewing screen color limiting device and method |
EP1813978A1 (de) | 2004-10-06 | 2007-08-01 | Sony Corporation | Farb-flüssigkristallanzeige |
US20080204366A1 (en) | 2007-02-26 | 2008-08-28 | Kane Paul J | Broad color gamut display |
US20080252580A1 (en) | 2007-04-10 | 2008-10-16 | John Pietrasik | RGV display system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8403523B2 (en) * | 2003-03-18 | 2013-03-26 | Electronic Theatre Controls, Inc. | Methods, luminaires and systems for matching a composite light spectrum to a target light spectrum |
WO2004088616A1 (ja) * | 2003-03-28 | 2004-10-14 | Sharp Kabushiki Kaisha | 表示装置 |
JP2005063687A (ja) * | 2003-08-11 | 2005-03-10 | Sharp Corp | 発光装置及び表示装置 |
JP4544948B2 (ja) * | 2004-03-26 | 2010-09-15 | シャープ株式会社 | 画像表示制御装置 |
JP5032749B2 (ja) * | 2005-03-16 | 2012-09-26 | パナソニック株式会社 | 光フィルタおよび照明装置 |
EP2007462B1 (de) * | 2006-04-11 | 2017-06-14 | Philips Lighting Holding B.V. | Kontrollieren eines fotobiologischen effekts mit licht |
EP2147426B1 (de) * | 2007-05-18 | 2015-07-29 | Samsung Display Co., Ltd. | Bildfarbenausgleichsanpassung für anzeigen mit 2d-subpixel-layouts |
US8240875B2 (en) * | 2008-06-25 | 2012-08-14 | Cree, Inc. | Solid state linear array modules for general illumination |
US8284275B2 (en) * | 2008-09-11 | 2012-10-09 | Panasonic Corporation | Lens barrel and imaging apparatus |
-
2009
- 2009-12-23 US US13/141,924 patent/US8646939B2/en not_active Expired - Fee Related
- 2009-12-23 EP EP09807707A patent/EP2380161A1/de not_active Withdrawn
- 2009-12-23 DE DE202009018852U patent/DE202009018852U1/de not_active Expired - Lifetime
- 2009-12-23 CN CN2009801555442A patent/CN102301410A/zh active Pending
- 2009-12-23 WO PCT/EP2009/009259 patent/WO2010072415A1/de active Application Filing
- 2009-12-23 JP JP2011542719A patent/JP2012513616A/ja active Pending
- 2009-12-23 KR KR1020117017194A patent/KR20110098845A/ko not_active Application Discontinuation
-
2013
- 2013-11-05 JP JP2013006335U patent/JP3189369U/ja not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997001240A1 (en) | 1995-06-20 | 1997-01-09 | Thomson Consumer Electronics, Inc. | Back lit electronic viewfinder |
EP1813978A1 (de) | 2004-10-06 | 2007-08-01 | Sony Corporation | Farb-flüssigkristallanzeige |
US20060152525A1 (en) | 2005-01-13 | 2006-07-13 | Woog Kenneth M | Viewing screen color limiting device and method |
US20080204366A1 (en) | 2007-02-26 | 2008-08-28 | Kane Paul J | Broad color gamut display |
US20080252580A1 (en) | 2007-04-10 | 2008-10-16 | John Pietrasik | RGV display system |
Non-Patent Citations (6)
Title |
---|
BAUMEIER D.: "Der Einfluss von Licht auf die Psyche", DISSERTATION, 2000 |
BRAINARD G. ET AL.: "Action spectrum for melatonin regulation in humans: Evidence for a novel circadian photoreceptor", JOURNAL OF NEUROSCIENCE, vol. 21, no. 16, 2001, pages 6405 - 6412 |
REA M.: "Light and Human Health, 5th International Lighting Research Symposium", 2002, THE LIGHTING RESEARCH OFFICE OF THE ELECTRIC POWER RESEARCH INSTITUTE, article "Light much more than vision", pages: 1 - 15 |
See also references of EP2380161A1 |
THAPAN, K.: "An action spectrum for melatonin suppression: Evidence for a novel nonrod, non-cone photoreceptor system in humans", JOURNAL OF PHYSIOLOGY, vol. 535, no. 1, 2001, pages 261 - 267 |
WIRTZ-JUSTICE A. ET AL.: "Circadiane und saisonale Rhythmen", ZENTRUM FÜR CHRONOBIOLOGIE, PSYCHATRISCHE UNIVERSITÄTSKLINIK BASEL, ZENTRUM FÜR CHRONOBIOLOGIE, 2004 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010039308A1 (de) * | 2010-08-13 | 2012-02-16 | Zumtobel Lighting Gmbh | Beleuchtungsanordnung mit verschiedenfarbigen Lichtquellen sowie Verfahren zum Betreiben einer derartigen Beleuchtungsanordnung |
WO2012080280A1 (fr) | 2010-12-17 | 2012-06-21 | Thales | Systeme de visualisation comprenant un eclairage de vigilance de nuit |
FR2969317A1 (fr) * | 2010-12-17 | 2012-06-22 | Thales Sa | Systeme de visualisation comprenant un eclairage de vigilance de nuit |
DE102011103639A1 (de) * | 2011-06-08 | 2012-12-13 | Diehl Aerospace Gmbh | Leuchte und Verfahren zur Erzeugung eines Leuchteffekts auf einer reflektierenden Oberfläche mittels einer Leuchte |
CN113209490A (zh) * | 2013-10-09 | 2021-08-06 | 昕诺飞控股有限公司 | 具有逼近白光的cri的无褪黑素抑制光源 |
US9523802B2 (en) | 2014-09-26 | 2016-12-20 | Japan Display Inc. | Display device |
Also Published As
Publication number | Publication date |
---|---|
US20120069551A1 (en) | 2012-03-22 |
KR20110098845A (ko) | 2011-09-01 |
EP2380161A1 (de) | 2011-10-26 |
JP2012513616A (ja) | 2012-06-14 |
US8646939B2 (en) | 2014-02-11 |
DE202009018852U1 (de) | 2013-11-26 |
JP3189369U (ja) | 2014-03-13 |
CN102301410A (zh) | 2011-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010072415A1 (de) | Anzeigesystem mit circadianer wirkung auf den menschen | |
DE60120430T2 (de) | Verfahren zur steuerung der wachsamkeit einer person | |
EP1886708B1 (de) | Leuchte mit "Melatonin-schonender" Wirkung | |
WO2016075196A2 (de) | Anzeigevorrichtung und verfahren zum betreiben einer solchen anzeigevorrichtung | |
DE102005059362A1 (de) | Farblich einstellbare Tageslichtquelle | |
DE102010030501A1 (de) | Vorrichtung und Verfahren zum Anpassen eines Circadianen Rhythmus | |
DE102013221723A1 (de) | Melanopische Leuchte | |
DE102015011429A1 (de) | Optisches Filtersystem und Fluoreszenzbeobachtungssystem | |
DE112020006208T5 (de) | System und Verfahren zur Blick-basierten Beleuchtung von Displays | |
WO2007068594A1 (de) | Anzeigevorrichtung mit einer vielzahl von bildpunkten und verfahren zum anzeigen von bildern | |
DE102017204086A1 (de) | Verfahren zum betreiben einer lichtemittierenden baugruppe und lichtemittierende baugruppe | |
EP2308560B1 (de) | Lichttherapievorrichtung | |
JP2010162214A (ja) | 光照射装置 | |
EP2437839B1 (de) | Lichtbehandlungsvorrichtung | |
DE112021000478T5 (de) | Systeme und Verfahren zum Beleuchten eines E-Papier-Displays | |
EP3418628A2 (de) | Beleuchtung mit mehrfachfunktion | |
DE102015014766A1 (de) | LED-Leuchte und Verfahren zur Beeinflussung der Spektralverteilung der LED-Leuchte | |
DE202015004814U1 (de) | Demonstrator zur Simulation von Tageslicht | |
DE102019106405A1 (de) | Herstellungsverfahren für LED-Lampe und LED-Lampe | |
DE102017114115A1 (de) | Beleuchtungsvorrichtung für einen einen Lichtmodulator aufweisenden Projektor | |
WO1999015118A1 (de) | Farbbrille | |
EP1992172A1 (de) | Beleuchtungseinrichtung und displaysystem mit einer beleuchtungseinrichtung | |
Zhang et al. | 35.2: Invited Paper: The influence of blue‐component on visual fatigue | |
DE202022106365U1 (de) | Beleuchtungssystem für die Schweinezucht | |
DE102008056976B4 (de) | Verfahren und Vorrichtung zur multifokalen, farbkanalselektiven Stimulation des visuellen Systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980155544.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09807707 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2011542719 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009807707 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117017194 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13141924 Country of ref document: US |