WO2006040722A2 - Display time control for moving images - Google Patents
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- WO2006040722A2 WO2006040722A2 PCT/IB2005/053312 IB2005053312W WO2006040722A2 WO 2006040722 A2 WO2006040722 A2 WO 2006040722A2 IB 2005053312 W IB2005053312 W IB 2005053312W WO 2006040722 A2 WO2006040722 A2 WO 2006040722A2
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Classifications
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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
- 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
- G09G3/36—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 liquid crystals
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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
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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
- 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
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- 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
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- 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
- G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/10—Special adaptations of display systems for operation with variable images
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- G—PHYSICS
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- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Definitions
- This invention relates to a method for reducing motion blur of images shown on non-stroboscopic display devices.
- Non-stroboscopic non-emissive displays such as Liquid Crystal Displays (LCD), active-matrix LCDs (amLCD), Plasma Panel Displays (PDP), Thin Film Transistor (TFT) displays, Liquid Crystal on Silicon (LCOS) displays or Colour Sequential Displays, consist of a display panel having a row and column array of image elements (pixels) for modulating light, means for illuminating the display panel from the front or back side, and drive means for driving the pixels in accordance with an applied input video signal.
- LCD Liquid Crystal Displays
- amLCD Active-matrix LCDs
- PDP Plasma Panel Displays
- TFT Thin Film Transistor
- LCOS Liquid Crystal on Silicon
- Colour Sequential Displays consist of a display panel having a row and column array of image elements (pixels) for modulating light, means for illuminating the display panel from the front or back side, and drive means for driving the pixels in accordance with an applied input video signal.
- non-stroboscopic emissive displays such as Organic Light Emitting Diodes (O-LED) displays, Polymer Light Emitting Diodes (PLED) displays, active-matrix PLEDs (amPLED) displays or Plasma Display Panels (PDP), consist of a display panel having a row and column array of pixels (LEDs) and drive means for driving the pixels (LEDs) in accordance with an applied input video signal.
- O-LED Organic Light Emitting Diodes
- PLED Polymer Light Emitting Diodes
- amPLED active-matrix PLEDs
- PDP Plasma Display Panels
- the pixels (LEDs) emit and modulate light by themselves without requiring illumination from the front or back side.
- each pixel of a displayed image is generated as a pulse, which is very short compared to the image period T.
- each pixel is displayed during most of the image period.
- this non- stroboscopic behaviour also holds for types of CRTs whose pixels, e.g. slow phospor atoms, are active for a time not negligible to the image period.
- the motion vector D vT is the product of the object velocity v and the image period T.
- the integration is the same as a convolution of F(x,n) and a sample-and-hold function h(cc) :
- the effect of the motion tracking / temporal sample-and-hold characteristic is a spatial frequency low-pass filtering in the direction of the motion with a sine- frequency response, with a cut-off- frequency being inversely proportional to the quantity j ' D , where j ' is denoted as the duty cycle of the display.
- the non-stroboscopic light generation combined with the eye tracking of the viewer trying to follow moving objects from one image to the next, thus leads to the perception of motion-dependent blur in the images.
- the cut-off- frequency of the spatial low pass filter and thus the degree of perceived motion blur can be kept constant by reducing the display time t, (or the duty cycle j - ) with the drawback of loss of brightness and increased flicker.
- prior art document WO 03/101086 A2 proposes to measure the motion and the characteristics of motion in the images of the input video signal and to continuously adjust the display time t, depending on this measured motion and the characteristics of motion.
- additionally anti-motion blur filtering based on the measured motion vectors is performed, and the display time and the sort and amount of anti- motion blur filtering are jointly controlled based on the measured motion and the characteristics of motion.
- local image characteristics that determine high spatial frequencies are considered in the filtering process and in the joint control of display time and sort and amount of anti- motion blur filtering, because these characteristics contain information on how reliable anti- motion blur filtering can be performed.
- WO 03/101086 A2 proposes to control the light output of the display inversely proportional to the display time, and, to reduce flicker, it is targeted to keep the display time as large as possible and to suppress motion blur with anti-motion blur filtering instead of reducing the display time.
- an object of the present invention to provide a low-complexity method, computer program, computer program product and device for reducing motion blur of images shown on non-stroboscopic display devices.
- a method for reducing motion blur of images shown on non- stroboscopic display devices in which local areas p t of an image of a video signal are displayed during respective local display times /, that are less than or equal to an image period T , comprising determining an amount X 1 of high spatial frequency content related to a local area P 1 of said image of said video signal, and adjusting a local display time /, in dependence on said determined amount X 1 of high spatial frequency content, wherein said local display time I 1 is decreased with increasing determined amount X 1 of high spatial frequency content.
- Said display device is a non-stroboscopic display device in the sense that when displaying images of said video signal, it generates, transmits or reflects light during display times I 1 that are not negligible with respect to the image period T .
- Said display device may be an emissive or a non-emissive display, and said local display times I 1 during which images of said video signal are displayed on said display then may refer to the times in which LEDs of said emissive display emit light or in which portions of the back-lights of said non- emissive displays are illuminated, respectively.
- Said display device may be integrated in all kinds of electronic devices that require a visual human-machine interface, for instance a television, a computer, a hand-held mobile device, a head-up system, an instrument or similar.
- Said video signal is composed of images that are displayed sequentially on said display device, wherein each image is spatially composed of a plurality of local areas P 1 , and wherein each local area P 1 is displayed during an associated local display time t t either in said emissive or non-emissive manner.
- Said local areas p t may for instance represent a group of adjacent pixels of an image, or all pixels of an image, so that the image is only composed of one local area p t that equals the image and only one associated local display time t t .
- An amount X 1 of high spatial frequency content related to a respective local area p t of said image of said video signal is determined, wherein said amount X 1 of high spatial frequency content characterises the high spatial frequency range of the spatial frequency domain spectrum of said local area p, of said image of said video signal, for instance, the sum of the magnitude of the spectrum coefficients for a certain high spatial frequency range, or a maximum spectrum coefficient in a certain high spatial frequency range, or the at least partial integration of the high- pass filtered local area p t of said image of said image signal, or similar.
- Content in the high spatial frequency region of the spectrum of an image may for instance be caused by pronounced differences between pixels of an image, such as edges, abrupt colour or brightness transitions, textures etc.
- said local display time / that is related to the same local area p, of said image is adjusted, wherein said local display time t t is decreased with increasing determined amount X 1 of high spatial frequency content.
- said display time t t may be assigned continuous or discrete values between 0 and
- the present invention recognises that the occurrence of motion blur caused by the sample-and-hold characteristic of the non-stroboscopic display device is not only linked to motion in the images, but also to the presence of high spatial frequency content in the images, such as for instance textures or edges.
- the present invention thus proposes to check on the presence of high spatial frequency content in the areas p t of said image of said video signal and to adjust the display time /, in dependence on the amount X 1 of this high spatial frequency content. This allows for a simplified implementation of the display system, because the amount X 1 of high spatial frequency content is easily determined, for instance, by means of a spatial frequency high-pass filter and does not require the deployment of computationally expensive motion estimation algorithms.
- said adjusting of said local display time I 1 may depend on only one image-related characteristic of said video signal, and said only one image-related characteristic of said video signal may be said amount X 1 of high spatial frequency content related to said local area p t of said image of said video signal.
- said adjusting of said display time then does not depend on the motion in said image of said video signal, so that no computationally expensive motion estimation and no frame memories are required.
- said determining of said amount X 1 of high spatial frequency content related to said local area p t of said image of said video signal comprises at least partially filtering said local area P 1 with a spatial frequency domain high-pass filter.
- an output of said spatial frequency domain high-pass filter may at least partially be combined to obtain said amount X 1 of high spatial frequency content related to said local area p t of said image of said video signal.
- the samples or the magnitude of the samples output by said high-pass filter may at least partially be summed to obtain said amount X 1 of high spatial frequency content.
- said local display time / is set to a maximum value if said amount X 1 of high spatial frequency content is below a first threshold k ⁇
- said local display time t is set to a minimum value if said amount X 1 of high spatial frequency content is above a second threshold k 2 .
- said local display time I 1 decreases from said maximum value to said minimum value when said amount X 1 of high spatial frequency content increases from said first threshold &, to said second threshold k 2 .
- said local display time decreases linearly from said maximum value to said minimum value.
- a further preferred embodiment of the present invention further comprises adjusting the light intensity, with which said local area p t of said image of said video signal is displayed on said non-stroboscopic display, in dependence on said adjusted local display time t t .
- said local display time stems from a limited set of discrete local display times. This may further reduce the complexity of the display system.
- said determining of said amount X 1 of high spatial frequency content related to said local area p t of said image of said video signal is based on a area of said image of said video signal that is larger than said local area p t .
- Said area may for instance comprise adjacent pixels or areas around said local area p t . This may contribute to avoiding abrupt changes in the determined amounts X 1 of high spatial frequency content related to respective adjacent local areas p, and thus to avoiding abrupt changes in the corresponding adjusted local display times I 1 , which may cause inconsistencies in the spatio-temporal light emission pattern. Such inconsistencies may cause unwanted effects depending on the eye tracking of the viewer, like e.g. flashes as the edges of moving components.
- a further preferred embodiment of the present invention further comprises determining an amount of temporal differences in said local area p t of said image of said video signal, wherein said local display time /, is only decreased with increasing determined amount X 1 of high spatial frequency content in dependence on said determined amount of temporal differences.
- the present invention recognises that motion blur in non-stroboscopic display devices occurs only in areas with high spatial frequency content and motion.
- the amount of spatial frequency content of a local area p t may be determined and used as a basis for the adjustment of the local display time I 1 .
- an additional determination of the amount of temporal differences in said local area p is integrated according to this embodiment of the present invention, wherein said temporal differences serve as a coarse measure for the amount of motion in said local area p t , but are much simpler to be determined, for instance by subtracting corresponding pixels of corresponding local areas p t in two subsequent images of said video signal, or by temporal low-pass filtering.
- the optimum local display time t t is adjusted.
- the adjustment of the local display time then may for instance comprise an enquiry if the determined amount of temporal differences exceeds a threshold, which may be pre-determined or adaptively determined, e.g. based on the overall amount of temporal differences in the images of the video signal.
- a threshold which may be pre-determined or adaptively determined, e.g. based on the overall amount of temporal differences in the images of the video signal.
- the local display time I 1 is only reduced with increasing amount of high spatial frequency content if there is sufficient motion, so that otherwise motion blur would result.
- a computer program is further proposed with instructions operable to cause a processor to perform the above-mentioned method steps.
- Said computer program may for instance be processed by a central processing unit of said display device.
- a computer program product comprising a computer program with instructions operable to cause a processor to perform the above-mentioned method steps.
- Said computer program product may for instance be a removable storage medium such as a disc, a CD-ROM, DVD, a memory stick or memory card.
- a device for reducing motion blur of images shown on non-stroboscopic display devices, in which local areas p t of an image of a video signal are displayed during respective local display times I 1 that are less than or equal to a image period T , comprising means arranged for determining an amount X 1 of high spatial frequency content related to a local area p t of said image of said video signal, and means arranged for adjusting a local display time I 1 in dependence on said determined amount X 1 of high spatial frequency content, wherein said local display time /, is decreased with increasing determined amount X 1 of high spatial frequency content.
- Said device may for instance be integrated in or attached to a display device, or may represent an external module.
- a preferred embodiment of the present invention further comprises means arranged for adjusting the light intensity, with which said local area p t of said image of said video signal is displayed on said non-stroboscopic display, in dependence on said adjusted local display time /, .
- a further preferred embodiment of the present invention further comprises means arranged for determining an amount of temporal differences in said local area p t of said image of said video signal, wherein said local display time I 1 is only decreased with increasing determined amount X 1 of high spatial frequency content in dependence on said determined amount of temporal differences.
- Fig. Ia A schematic illustration of the spatial frequency transfer function of the display + eye combination as a function of motion and spatial frequency for a duty cycle of 100%;
- Fig. Ib a schematic illustration of the spatial frequency transfer function of the display + eye combination as a function of motion and spatial frequency for a duty cycle of 30%;
- Fig. 2 a schematic illustration of the trade-off between driving current for the backlights of a non-emissive display or the light emitting diodes of an emissive display and duty cycle when displaying images on a non-stroboscopic display device with equal luminance;
- Fig. 3 a schematic illustration of the trade-off between life-time and motion portrayal quality when increasing the duty cycle for images displayed on a non-stroboscopic display device
- Fig. 4 a first embodiment of a system for reducing motion blur according to the present invention, based on adjusting a display time (duty cycle) in dependence on the amount of high spatial frequency content in local areas of images of a video signal; and
- Fig. 5 a second embodiment of a system for reducing motion blur according to the present invention based on adjusting a display time (duty cycle) in dependence on the amount of high spatial frequency content and the amount of temporal differences in local areas of images of a video signal.
- the present invention proposes to control the display time I 1 , which is related to a local area p t of an image of a video signal that is displayed on a non-stroboscopic display device, in dependence on a determined amount X 1 of High Spatial Frequency Content (HSFC) in said local area p t and optionally also in dependence on a determined amount of temporal differences in said local area p t .
- HSFC High Spatial Frequency Content
- Figs. Ia and Ib schematically depict the spatial frequency transfer function of the display + eye combination as a function of the motion (in pixels per frame) and the spatial frequency for duty cycles of 100% (Fig. Ia), i.e. continuous light generation during the complete picture period such as in a regular active matrix LED or OLED display, and 30% (Fig. Ib), i.e. the display generates light for 30% of the image period and is switched off for 70% of the image period.
- the duty cycle denotes the ratio between display time I 1 and image period T
- the shaded regions represent spatial frequency transfer function magnitudes between 0 and 0.5 (large attenuation of the associated frequencies)
- the white regions represent spatial frequency transfer function magnitudes between 0.5 and 1 (low attenuation).
- a spatial frequency of 0.5 equals the nyquist frequency for the display: a pixclwise on-off pattern.
- Table 1 lists the possibilities where motion blur might occur.
- the first condition for motion blur is the availability of HSFC in local areas p t of an image (No. 3 and 4 in Table 1).
- the second condition is that there has to be motion (No. 2 and 4 in Table 1 ). Both conditions must be true to result in motion blur.
- the present invention proposes to test the first condition to be true (No. 3 and 4 in Table 1) when adapting the duty cycle.
- the duty cycle is then also adjusted in situations where it would not have been necessary (No. 3 in Table 1), but this case is by far outweighed by the possibility of a low-complexity implementation of the present invention when only testing for the amount of HSFC.
- large area flicker is most visible in flat areas (no HSFC), so decreasing the duty cycle in No. 3 is not as bad as in cases No. 1 and No. 2.
- Motion portrayal thus can be improved by decreasing the duty cycle (or display time /, ).
- flicker has to be taken into account. Flicker increases with decreasing duty cycle and then may be perceived as annoying by a viewer.
- the adaptation to the HSFC can also be don locally, which allows a more accurate choice from the cases in table 1.
- the intensity of the pixels should be inversely proportional to the duty cycle, as illustrated in Fig. 2, which depicts the trade-off between duty cycle and current fed to the LEDs or an emissive display or to the back-lights of a non-emissive display in order to achieve a constant luminance 20.
- Fig. 4 depicts an according first embodiment 4 of the present invention that performs an adjustment of the display time/duty cycle in dependence on the determined amount of HSFC in local areas of an image of a video signal.
- an input video signal is first fed into a high-pass filter 40.
- a local area P 1 of an image of said input video signal for instance comprising several adjacent pixels of said image, is filtered with a spatial frequency domain low-pass filter and may be further processed to obtain a measure for the amount of HSFC in said local area p t .
- the absolute of the filter outputs are summed to obtain a measure for the amount X 1 of HSFC in said local area p t .
- the determined amount X 1 of HSFC is then fed to a duty cycle adjustment instance 41, which is composed of a limiting function instance 42 and a duty cycle modulator 43.
- a duty cycle adjustment instance 41 which is composed of a limiting function instance 42 and a duty cycle modulator 43.
- the determined amount X 1 of HSFC is processed by clipping, coring and normalizing to obtain a drive value D 1 for the duty cycle modulator 43, which is defined as:
- &, and k 2 are thresholds that allow the minimum and maximum duty cycle to be used for a range of 'HSFC levels', and that allows a transition region to be defined where the switch from short to long duty cycles takes place, a is a parameter for adjusting the slope of this transition.
- limiting function instance 42 can also be seen as part of the spatial high pass-filter 40, or as part of the duty cycle modulator 43; this does not influence the overall functionality.
- the luminance control instance 44 adjusts the input video signal in response to the adjusted duty cycle such that the instantaneous light output of the display segment associated with the local area p t , for which the duty cycle is currently adjusted, results in the correct luminance. This may be necessary in case the duty cycle control of the display itself does not correct for luminance, or in case of an OLED display (or other emissive displays), where the intensity is directly determined by the video (drive values) and not also by a backlight. In the most flexible form, the duty cycle is varied continuously between a minimum (e.g. 20%), and a maximum (likely 100%), depending on the image characteristics. In some cases, a limited set of duty cycles to choose from can be used.
- the modulation of the duty cycle is not the only way to influence the motion blur - lifetime (and flicker) trade-off. Any other method can also be used to modulate the temporal light emission, for example the addition of a bias to the DC value. This gives more or less the same trade-off as with a varying duty cycle (both regarding flicker and lifetime), and therefore the present invention also works with this type of duty cycle modulation (the bias method can also be seen as a form of duty cycle modulation, by creating a mixture of two duty cycles, 100% and e.g. 30%, resulting in an effective duty cycle somewhere in between).
- the amount of temporal differences in the local areas p t is additionally determined and considered in the adjustment of the display time /, / duty cycle. This may for instance be accomplished by adding a frame memory to the first embodiment 4 of Fig. 4.
- temporal image characteristics can be determined, which represent a coarse indication of motion.
- the determination of said temporal differences may be embodied as a temporal high-pass, which gives per pixel of a local area p t only the a value indicative of motion, but not of the direction of the motion.
- the adjustment of the duty cycle can be influenced more reliably.
- the duty cycle can still be large without causing motion blur.
- Table 2 lists the possible cases where motion blur occurs. The second column indicates the test for HSFC, and the fourth column indicates test for a large amount of temporal differences.
- the addition of a simple estimation technique to determine the amount of temporal differences in local areas p t helps to avoid a reduction of the duty cycle in case No. 2 of Table 2 (corresponding to case 3 of Table 1) and otherwise, apart from rare or noisy cases, identifies the correct cases where a reduction of the duty cycle to combat motion blur is required.
- the duty cycle is only reduced when it is actually required, which reduces flicker and increases the lifetime of the display device.
- Fig. 5 depicts the basic set-up of the second embodiment 5 of the present invention.
- the input video signal is analyzed in a spatio-temporal image characteristics instance 50, where the local areas p t of images of said input video signal are for instance filtered in the spatial frequency and temporal frequency domain to determine the amount of HSFC and the amount of temporal differences, and, based on these results, a drive value D 1 (corresponding to the local area /?,) for the duty cycle modulator 51 is determined.
- the duty cycle as determined by the duty cycle modulator 51 is then forwarded to the emissive or non-emissive non-stroboscopic display, and also to a luminance control instance 52, which adjusts the input video signal in response to the duty cycle such that the instantaneous light output of the display segment associated with the local area p t , for which the duty cycle is currently adjusted, results in the correct luminance.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2007536311A JP2008516291A (en) | 2004-10-13 | 2005-10-10 | Image display time control |
US11/576,911 US8063920B2 (en) | 2004-10-13 | 2005-10-10 | Display time control for images |
EP05789487A EP1803112A2 (en) | 2004-10-13 | 2005-10-10 | Display time control for moving images |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP04105020.4 | 2004-10-13 | ||
EP04105020 | 2004-10-13 |
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WO2006040722A2 true WO2006040722A2 (en) | 2006-04-20 |
WO2006040722A3 WO2006040722A3 (en) | 2006-06-22 |
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PCT/IB2005/053312 WO2006040722A2 (en) | 2004-10-13 | 2005-10-10 | Display time control for moving images |
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US (1) | US8063920B2 (en) |
EP (1) | EP1803112A2 (en) |
JP (1) | JP2008516291A (en) |
KR (1) | KR20070074618A (en) |
CN (1) | CN100504981C (en) |
WO (1) | WO2006040722A2 (en) |
Cited By (1)
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- 2005-10-10 CN CNB2005800350339A patent/CN100504981C/en not_active Expired - Fee Related
- 2005-10-10 EP EP05789487A patent/EP1803112A2/en not_active Withdrawn
- 2005-10-10 US US11/576,911 patent/US8063920B2/en not_active Expired - Fee Related
- 2005-10-10 JP JP2007536311A patent/JP2008516291A/en active Pending
- 2005-10-10 KR KR1020077010659A patent/KR20070074618A/en not_active Application Discontinuation
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Cited By (3)
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EP2061020A2 (en) | 2007-11-16 | 2009-05-20 | Sony Corporation | Display device, image signal processing method, and program |
EP2061020A3 (en) * | 2007-11-16 | 2010-03-24 | Sony Corporation | Display device, image signal processing method, and program |
US8199171B2 (en) | 2007-11-16 | 2012-06-12 | Sony Corporation | Display device, image signal processing method, and program |
Also Published As
Publication number | Publication date |
---|---|
WO2006040722A3 (en) | 2006-06-22 |
CN101040307A (en) | 2007-09-19 |
CN100504981C (en) | 2009-06-24 |
JP2008516291A (en) | 2008-05-15 |
KR20070074618A (en) | 2007-07-12 |
US20080042953A1 (en) | 2008-02-21 |
EP1803112A2 (en) | 2007-07-04 |
US8063920B2 (en) | 2011-11-22 |
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