WO2011118518A1 - 立体画像表示装置 - Google Patents
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- WO2011118518A1 WO2011118518A1 PCT/JP2011/056536 JP2011056536W WO2011118518A1 WO 2011118518 A1 WO2011118518 A1 WO 2011118518A1 JP 2011056536 W JP2011056536 W JP 2011056536W WO 2011118518 A1 WO2011118518 A1 WO 2011118518A1
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
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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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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
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Definitions
- the present invention relates to a stereoscopic image display device that performs stereoscopic display by outputting image data for the left eye and right eye in a time-sharing manner.
- a stereoscopic image display device for improving ghost (crosstalk) due to a response delay of a display element such as a liquid crystal is known.
- the input image data of the latest field is compared with the gradation value of the image data of the field displayed immediately before, and the latest voltage to be displayed next from the immediately preceding field as the gradation voltage for image display of the latest field.
- a gradation voltage emphasizing the gradation change to the field is created and applied to the liquid crystal display panel.
- a conversion table of gradation values for accelerating the response speed of the liquid crystal with respect to gradation changes and compensating for the response delay is prepared in a predetermined memory in advance, and an arithmetic unit provided at the subsequent stage of the frame memory is used.
- Patent Document 1 A prior art is disclosed in which an optimum gradation voltage is created to change from the current liquid crystal display state to the gradation to be displayed next (see Patent Document 1).
- An arithmetic unit provided at the subsequent stage of the memory creates optimum gradation voltages for the left-eye image data and the right-eye image data. Therefore, when the gradation voltage is created, both the left-eye image data and the right-eye image data are calculated, and the memory capacity and the number of input / output terminals of the memory increase. This increases the throughput of data transfer to and from the memory and increases the number of memories and the wiring area, so that there is a problem that the apparatus becomes complicated / large and the manufacturing cost increases.
- the frame rate of the image data is high, so that not only the throughput is high, but the operation speed of the computing unit is high.
- the apparatus load becomes large.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a stereoscopic image display device having a simple device configuration and capable of reducing a data processing device load.
- the first feature of the stereoscopic image display device is that one image data of right-eye image data or left-eye image data for displaying a stereoscopic video is transmitted for one frame period. Based on the difference between the delay unit that outputs the delayed data as delayed data, the right-eye image data, and the left-eye image data, the first image data is emphasized by a first enhancement coefficient, and the first enhancement is performed.
- a first data enhancement unit that outputs the enhancement data, the other image data of the right-eye image data or the left-eye image data, and the delay data delayed by one frame period by the delay unit Based on the difference, a second data enhancement unit that enhances the other image data with a second enhancement coefficient and outputs it as second enhancement data, the first enhancement data, and the second enhancement data Stores, is to have a first enhancement data, and a division output unit when outputting the time-dividing the second enhancement data at a predetermined frame rate.
- a second feature of the stereoscopic image display device is that one of the right-eye image data and the left-eye image data for displaying a stereoscopic image is delayed by one frame period and output as delayed data.
- a first enhancement data is output by emphasizing the one image data with a first enhancement coefficient based on a difference between the delay unit, the right-eye image data, and the left-eye image data. Based on a difference between one data enhancement unit, the other image data of the right-eye image data or the left-eye image data, and the delay data delayed by one frame period by the delay unit.
- a second data emphasizing unit for emphasizing the image data with a second emphasis coefficient and outputting it as second emphasis data, the first emphasis data, the one image data, and the second emphasis data , Storing the other image data, time-division at a predetermined frame rate in the order of the first enhancement data, the one image data, the second enhancement data, and the other image data.
- a time-division output unit for outputting.
- a third feature of the stereoscopic image display device is that one of the right-eye image data and the left-eye image data for displaying a stereoscopic video is delayed by one frame period and output as delayed data.
- a first enhancement data is output by emphasizing the one image data with a first enhancement coefficient based on a difference between the delay unit, the right-eye image data, and the left-eye image data. Based on a difference between one data enhancement unit, the other image data of the right-eye image data or the left-eye image data, and the delay data delayed by one frame period by the delay unit. Based on the difference between the second data enhancement unit that enhances the image data with the second enhancement coefficient and outputs the second enhancement data as the second enhancement data, and the one image data and the other image data.
- a fourth data emphasizing unit for emphasizing the other image data with a fourth emphasis coefficient having an emphasis gain smaller than that of the second emphasis coefficient and outputting the fourth image data as fourth emphasis data Storing the first enhancement data, the third enhancement data, the second enhancement data, and the fourth enhancement data; the first enhancement data; the third enhancement data; And a time-division output unit that outputs time-division at a predetermined frame rate in the order of the second emphasized data and the fourth emphasized data.
- a fourth feature of the stereoscopic image display device is that when the frame rate of the left-eye image data and the right-eye image data is equal to or lower than a first predetermined value, a frame equal to or higher than a second predetermined value is used.
- a frame rate conversion unit that converts the rate into a rate and outputs it to the delay unit and the first and second data enhancement units is provided.
- a fifth feature of the stereoscopic image display device is that a delay unit that delays one image data of right-eye image data or left-eye image data by one frame period and outputs it as delay data;
- a first data emphasizing unit for emphasizing the one image data with a first emphasis coefficient based on a difference between the ophthalmic image data and the left-eye image data, and outputting first emphasis data;
- the other input data is converted into the second input data.
- a fifth data emphasizing unit for emphasizing image data displayed earlier in time-series order based on the same frame of the image data with a fifth emphasis coefficient and outputting the data as fifth emphasis data; Of the first emphasis data, the second emphasis data, and the fifth emphasis data, and one of the first emphasis data and the second emphasis data that is displayed first in chronological order.
- a time-division output unit for converting to a predetermined frequency or more and outputting by time-sharing in the order of emphasized data, the other emphasized data, the fifth emphasized data, and the other emphasized data; Is to have.
- the apparatus load for data processing can be reduced with a simple apparatus configuration.
- FIG. 1 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram illustrating a specific configuration example of the data enhancement unit provided in the stereoscopic image display apparatus according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram showing a memory throughput according to a conventional example in which time axis enhancement processing is performed after time-division processing on left-eye image data and right-eye image data.
- FIG. 4 is a diagram illustrating the throughput of the memory in the stereoscopic image display apparatus according to Embodiment 1 of the present invention.
- FIG. 1 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram illustrating a specific configuration example of the data enhancement unit provided in the stereoscopic image display apparatus according to Embodiment 1 of the present invention.
- FIG. 3
- FIG. 5 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 2 of the present invention.
- FIG. 6 is a diagram illustrating the response characteristics of the time-division output unit included in the stereoscopic image display apparatus according to Embodiment 2 of the present invention.
- FIG. 7 is a diagram showing memory throughput according to a conventional example in which time-axis enhancement processing is performed after time-sharing processing of left-eye image data and right-eye image data.
- FIG. 8 is a diagram illustrating the memory throughput of the stereoscopic image display apparatus according to the second embodiment of the present invention.
- FIG. 9 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 3 of the present invention.
- FIG. 10 is a diagram illustrating the response characteristics of the time-division output unit included in the stereoscopic image display apparatus according to Embodiment 3 of the present invention.
- FIG. 11 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 4 of the present invention.
- FIG. 12 is a block diagram illustrating a configuration example of a stereoscopic image display apparatus according to Embodiment 5 of the present invention.
- FIG. 13 is a diagram illustrating a state after time division processing in the time division output unit 70 included in the stereoscopic image display apparatus according to Embodiment 5 of the present invention.
- FIG. 14 is a diagram showing memory throughput according to a conventional example in which time axis enhancement processing is performed after time-sharing processing of left-eye image data and right-eye image data.
- FIG. 15 is a diagram illustrating the memory throughput when the time-division output unit of the stereoscopic image display device according to the fifth embodiment of the present invention performs time-division reading while performing pull-down processing from the frame memory.
- the final time-series output order is the order of the left-eye image and the right-eye image based on the left-eye image data and the right-eye image data input at 60 (frames / second).
- a stereoscopic image display apparatus that performs time-sharing processing and outputs a 120 (frame / second) stereoscopic image will be described as an example.
- the left-eye image data is image data for viewing with the left eye of the observer
- the right-eye image data is image data for viewing with the right eye of the observer.
- FIG. 1 is a block diagram illustrating a configuration example of the stereoscopic image display apparatus 1 according to the first embodiment.
- the stereoscopic image display apparatus 1 includes a delay unit 10, a data enhancement unit 20a, a data enhancement unit 20b, and a time division output unit 30.
- the delay unit 10 delays the right-eye image data RI (n) of the frame of interest n by one frame period and outputs it as delayed right-eye image data RI (n ⁇ 1).
- the frame number of the frame of interest is n (n is a natural number), and the frame number delayed by one frame period from the frame of interest is represented by (n ⁇ 1).
- the data enhancement unit 20a obtains the right eye image data RI (n) based on the difference between the right eye image data RI (n) of the frame of interest n and the left eye image data LI (n) of the frame of interest n. Emphasize and output as image enhancement data RE (n) for the right eye.
- the data enhancement unit 20b determines the left eye based on the difference between the delayed right eye image data RI (n ⁇ 1) delayed by one frame period by the delay unit 10 and the left eye image data LI (n) of the frame of interest.
- the image data LI (n) for use is emphasized and output as image enhancement data LE (n) for the left eye.
- the time-sharing output unit 30 outputs the right-eye image enhancement data RE (n) emphasized and output from the data enhancement unit 20a, and the left-eye image enhancement data LE (n) that is enhanced and output from the data enhancement unit 20b. ) And holds a predetermined frequency, that is, 120 (frame) corresponding to a double speed rate of the input frequency 60 (frame / second) of the image data RI (n) for the right eye and the image data LI (n) for the left eye. / Second) in time-sequential order and output.
- the data input to the stereoscopic image display device 1 are two pieces of image data LI (n) for the left eye and image data RI (n) for the right eye, and these data are in a synchronous relationship. Then, for example, it is read from a BD (Blu-ray Disc) or a DVD (Digital Versatile Disc) compatible with stereoscopic (3D) display, or received by digital broadcasting, and input in parallel to the stereoscopic image display device.
- n is a natural number and indicates the frame numbers of the left-eye image data LI (n) and the right-eye image data RI (n).
- the image of the stereoscopic image display device 1 is synchronized with the switching of the image data LI (n) for the left eye and the image data RI (n) for the right eye, the observer operates at 120 (frames / second).
- the observer By wearing 3D glasses with a liquid crystal shutter or 3D glasses with a polarizing filter and viewing the left and right images, it can be viewed as a stereoscopic image.
- n-th left-eye image data LI (n) and right-eye image data RI (n) are input to the stereoscopic image display device 1
- the left-eye image data LI. (N) and right-eye image data RI (n) are directly input to the data enhancement unit 20a.
- the delay unit 10 outputs the (n ⁇ 1) th right-eye image data RI (n ⁇ 1) one frame before.
- left-eye image data LI (n) and delayed right-eye image data RI (n ⁇ 1) delayed by one frame period are input to the data enhancement unit 20b.
- the data enhancement unit 20a emphasizes the right-eye image data RI (n) based on the difference between the right-eye image data RI (n) and the left-eye image data LI (n). And output to the time-division output unit 30 as the right-eye image enhancement data RE (n).
- the data enhancement unit 20b is based on the difference between the left-eye image data LI (n) and the delayed right-eye image data RI (n ⁇ 1) delayed by one frame period by the delay unit 10.
- the left-eye image data LI (n) is emphasized and output to the time-division output unit 30 as left-eye image enhancement data LE (n).
- FIG. 2 is a diagram illustrating a specific configuration example of the data emphasizing unit 20b provided in the stereoscopic image display device 1. Note that the configuration of the data enhancement units 20a and 20b has the same configuration except for the enhancement coefficient described later. Therefore, the data enhancement unit to which the delayed right-eye image data RI (n-1) is input is representatively shown here. The configuration of 20b will be described.
- the data enhancement unit 20b includes a subtractor 21b, an enhancement coefficient multiplier 22b, and an adder 23b.
- LE (n) LI (n) + K2 (LI (n) ⁇ RI (n ⁇ 1)) (1) Is used to calculate the image enhancement data LE (n) for the left eye.
- the data enhancement unit 20b includes the left-eye image data LI (n) of the current frame and the delayed right-eye image data RI (n ⁇ 1) delayed by one frame from the delay unit 10. Is first input, the subtractor 21b subtracts the delayed right-eye image data RI (n-1) from the left-eye image data LI (n), and the subtraction result (LI (n) -RI (n- 1)) is output to the enhancement coefficient multiplier 22b.
- the enhancement coefficient multiplier 22b multiplies the subtraction result (LI (n) ⁇ RI (n ⁇ 1)) from the subtractor 21b by the enhancement coefficient K2, and the multiplication result K2 (LI (n) ⁇ RI (n ⁇ 1) )) Is output to the adder 23b.
- the adder 23b adds the input left-eye image data LI (n) and the multiplication result K2 (LI (n) ⁇ RI (n ⁇ 1)), and the left-eye image enhancement data LE (n). Get.
- the image enhancement data LE (n) for the left eye is output from the data enhancement unit 20b and input to the time division output unit 30.
- the right image data RI (n) and the left eye image data LI (n) are input to the data enhancement unit 20a, the right eye image data RI (n) and the left eye image data Based on the difference from LI (n), the right image data RI (n) is enhanced by the enhancement coefficient K1, and the right-eye image enhancement data RE (n) is output from the data enhancement unit 20b. 30 is output.
- the emphasis coefficients K1 and K2 are set to optimum values based on calculations or experiments depending on the response characteristics of the liquid crystal used. Is done.
- the response characteristic of the liquid crystal depends on the data level, the ambient temperature, and the like, and the function of adaptively adjusting the emphasis coefficients K1 and K2 according to the data level, the ambient temperature, and the like may be provided. It is valid.
- the specific enhancement coefficients K1 and K2 of the data enhancement units 20a and 20b are not particularly limited, and may be the same value or different values.
- the time division output unit 30 outputs the right-eye image enhancement data RE (n), RE (n + 1), RE (n + 2),... And the left-eye image enhancement data output from the data enhancement units 20a and 20b.
- LE (n), LE (n + 1), LE (n + 2),... are input and temporarily stored in the frame memory 31, and the frame is twice as high as 60 (frames / second) which is the frequency of each input image data.
- frame / second corresponding to the rate (double speed rate)
- Stereoscopic display is performed by alternately reading out the image data that has been subjected to the time axis enhancement processing in the order of series.
- FIG. 3 is a diagram showing the throughput of a memory according to a conventional example in which time-axis enhancement processing is performed after time-sharing processing of left-eye image data and right-eye image data for comparison
- FIG. 4 is a stereoscopic image display.
- FIG. 4 is a diagram showing memory throughput in the device 1.
- the time axis enhancement processing is performed after the time-sharing processing of the left-eye image data and the right-eye image data.
- the right-eye image data RI (n) the right-eye image data RI (n)
- the time axis enhancement process is performed on each of the left-eye image data LI (n), and then the time division process is performed.
- the image format is HDTV standard horizontal 1920 pixels ⁇ 1080 pixels
- the frame rate is 60 (frame / second) on the input side, 120 (frame / second) after time division processing, and the data bit length is 8 (bits). ), 3 (ch) of RGB.
- the conditions of the image format are the same in other embodiments described later.
- the delay unit 10 that delays the right-eye image data RI (n) by one frame period and outputs it as the delayed right-eye image data RI (n ⁇ 1).
- right-eye image enhancement data RE (n) by emphasizing the right-eye image data RI (n) based on the difference between the right-eye image data RI (n) and the left-eye image data LI (n). For the left eye based on the difference between the left image data LI (n) and the delayed right eye image data RI (n ⁇ 1) delayed by one frame period by the delay unit 10.
- a data enhancement unit 20b that enhances the image data LI (n) and outputs it as left-eye image enhancement data LE (n), right-eye image enhancement data RE (n), and left-eye image enhancement data LE (n ) Is stored in the frame memory 31, and a predetermined frequency is Time-division output unit 30 for time-dividing and outputting time-sequentially based on 120 (frames / second), so that time-axis emphasis processing for compensating for delays in response characteristics of liquid crystal and the like is time-division processing Compared with the case where time axis enhancement processing is performed after time division processing, the number of input / output terminals of the delay unit and frame memory is reduced, and the throughput of data transfer between the delay unit and frame memory is also increased. Since it can be kept low and the wiring area can be kept small, the device load for data processing can be reduced with a simple device configuration.
- the manufacturing cost is reduced, and the burden on the data processing device is reduced, and the right eye when using a display device with a slow response speed represented by a liquid crystal display device is used.
- Crosstalk between the image data and the left-eye image data can be reduced.
- the final time-series output order is a three-dimensional image in the order of the left-eye image and the right-eye image.
- the stereoscopic image display device 1 to be displayed has been described as an example, but other modifications are possible.
- right-eye image enhancement data RE (n) that emphasizes the right-eye image data RI (n) of the attention frame n and left-eye image that emphasizes the left-eye image data LI (n) of the attention frame n.
- the enhancement data LE (n) may be written in the frame memory and read out alternately so that the time-series output order is displayed as a stereoscopic image in the order of the right eye image and the left eye image. The same applies to other Examples 2 to 5 described later.
- the final time series output order is the order of the left-eye image and the right-eye image based on the left-eye image data and the right-eye image data input at 60 (frames / second).
- An example of a stereoscopic image display apparatus that performs time-sharing processing and outputs a stereoscopic image of 240 (frames / second) will be described.
- FIG. 5 is a block diagram illustrating a configuration example of the stereoscopic image display apparatus 2 according to the second embodiment.
- the stereoscopic image display apparatus 2 includes a delay unit 10, a data enhancement unit 20 a, a data enhancement unit 20 b, and a time division output unit 40.
- symbol is attached
- the time-sharing output unit 40 outputs the right-eye image enhancement data RE (n) that is emphasized and output from the data enhancement unit 20a, and the left-eye image enhancement data LE (n) that is enhanced and output from the data enhancement unit 20b. ), The right-eye image data RI (n) before being emphasized by the data enhancement unit 20a, and the left-eye image data LI (n) before being emphasized by the data enhancement unit 20b.
- the image data is held and output in a time-sharing manner based on a predetermined frequency of 240 (frames / second).
- the image enhancement data for the left eye and the image enhancement data for the right eye after the time axis enhancement processing are alternately switched at a double speed rate of 120 (frames / second) and output in chronological order.
- the data before and after performing the time axis emphasis processing of the left eye image data and the right eye image data are time-divisionally divided by 240 (frames / second), which is a quadruple rate, that is, the left eye.
- the image enhancement data LE (n), the left eye image data LI (n), the right eye image enhancement data RE (n), and the right eye image data RI (n) are displayed in a time-sharing manner.
- a hold-type display device such as a liquid crystal display device such as a TFT liquid crystal
- writing scan of image data to the TFT liquid crystal is performed in line order, and the image data written to the TFT liquid crystal is the next image data.
- the shutter glasses are simply opened alternately for the left eye and the right eye, a region (crosstalk) in which the images for the right eye and the left eye are mixed is generated.
- the writing scan to the TFT liquid crystal is made as short as possible, and a hold period (equivalent to the vertical blanking period) until writing of the image data of the next frame is taken. Open shutter glasses in time.
- the liquid crystal response compensation is performed using this method in the stereoscopic image display apparatus 1 according to the first embodiment, the emphasized image is also retained for one frame period, and as a result, the original target is obtained.
- the securing of the period during which the image display is stable is not taken into consideration.
- the time division processing is performed as follows: (1) left-eye image enhancement data LE (n) subjected to time axis enhancement processing, (2) Left eye image data LI (n) not subjected to time axis enhancement processing, (3) Right eye image enhancement data RE (n) subjected to time axis enhancement processing, and (4) Time axis enhancement processing not performed. Time-division is repeated in the order of right-eye image data RI (n), output, and displayed.
- the left-eye image enhancement data LE (n) and the right-eye image enhancement data RE (n) that have been subjected to time-axis enhancement processing for liquid crystal response compensation are converted into the left-eye image data and the right-eye image data.
- a stable period is provided by outputting the left-eye image data LI (n) and the right-eye image data RI (n), which are output only when the image data is switched, and thereafter are not subjected to time-axis enhancement processing.
- FIG. 6 is a diagram illustrating liquid crystal response characteristics by the time-division output unit 40 included in the stereoscopic image display device 2.
- the output period of the left-eye image data LI (n) is a stable period, and the time-axis enhancement processing is not performed after the output of the right-eye image enhancement data RE (n) subjected to the time-axis enhancement processing.
- the memory throughput of the stereoscopic image display apparatus 2 will be described in comparison with a conventional example in which time axis enhancement processing is performed after time division processing.
- FIG. 7 shows the memory throughput in 240 (frame / second) display according to the conventional example in which the time axis enhancement processing is performed after the time-sharing processing of the left-eye image data and the right-eye image data
- FIG. It is a figure which shows the throughput of the memory in 240 (frame / second) display by the display apparatus 2.
- writing into the frame memory has two types of image data for the left eye and image data for the right eye, that is, one screen each on the left and right, and reading from the frame memory is quadruple speed. It is calculated as an operation of reading the left-eye image data twice and the right-eye image data twice continuously at the rate. As shown in FIG.
- the left eye image enhancement data LE (n), the left eye image data LI (n), and the right eye image are stored in the frame memory 41.
- the writing of the enhancement data RE (n) and the right-eye image data RI (n) is 60 (frame / second)
- the throughput is 2986 (Mbit / second), respectively
- the reading from the frame memory 41 is the quadruple speed rate.
- the corresponding 240 (frame / second) is 5972 (Mbit / second)
- the write to the delay unit 10 and the read from the delay unit 10 are also 60 (frame / second) and 2986 (Mbit / second), for a total of 29860. (Mbit / sec).
- the total throughput of the memory is 41804 (Mbit / second).
- the total throughput of the memory is 29860 (Mbit / sec), and it can be seen that it is improved.
- the time axis enhancement process for compensating for the delay of the response characteristic of the liquid crystal and the like is performed in a time-sharing process as in the stereoscopic image display apparatus 1 according to the first embodiment.
- time axis enhancement processing is performed after time division processing, the number of input / output terminals of the delay unit and frame memory is reduced, and the throughput of data transfer between the delay unit and frame memory is also increased. Since it can be kept low and the wiring area can be kept small, the device load for data processing can be reduced with a simple device configuration.
- the time-sharing processing is performed for the left eye image enhancement data LE (n), the left eye image data LI (n), the right eye image enhancement data RE (n), and the right eye image data. Since the image data RI (n) is repeatedly output and displayed in a time-sharing manner, the left-eye image enhancement data LE (n) and right-eye subjected to the time axis enhancement processing for the compensation of the liquid crystal response are displayed.
- the image enhancement data RE (n) is output only when the left and right image data is switched, and then the left eye image data LI (n) and the right eye image data RI (n) are output.
- FIG. 9 is a block diagram illustrating a configuration example of the stereoscopic image display device 3 according to the third embodiment.
- Example 2 is different from the stereoscopic image display apparatus 2 according to the second embodiment shown in FIG. 5 in that a data emphasizing unit having two different emphasis coefficients is provided. That is, in Example 2, the image enhancement data LE (n) for the left eye that is time-axis enhanced by the quadruple rate display, the image data LI (n) for the left eye that is not time-axis enhanced, and the right that is time-emphasized. The image data is switched and displayed in the order of the eye image enhancement data RE (n) and the right eye image data RI (n) that is not time-axis enhanced.
- the image enhancement data LE (n) and the image enhancement data RE (n) for the right eye subjected to the time axis enhancement processing are output.
- a stable period for outputting the left-eye image data LI (n) and the right-eye image data RI (n) that is not subjected to time-axis enhancement processing is provided.
- the configuration in which the liquid crystal response is compensated by the time axis enhancement processing only with the frame at the time of switching between the eye image data and the right eye image data may be insufficient.
- the stereoscopic image display device 3 is weak instead of providing a stable period for outputting the left-eye image data LI (n) and the right-eye image data RI (n) without performing the time axis enhancement processing. It is characterized in that time axis emphasis processing is performed by an emphasis coefficient.
- the stereoscopic image display device 3 includes a delay unit 10, a data enhancement unit 20a, a data enhancement unit 20b, a data enhancement unit 20c, a data enhancement unit 20d, and a time division output unit 50.
- the delay unit 10, the data emphasizing unit 20a, and the data emphasizing unit 20b are the same as the configurations of the stereoscopic image display apparatuses 1 and 2 of the first and second embodiments, and thus description thereof is omitted.
- the data enhancement unit 20c emphasizes the right-eye image data RI (n) based on the difference between the right-eye image data RI (n) and the left-eye image data LI (n).
- the image is emphasized by an enhancement coefficient K3 having an enhancement gain smaller than the coefficient K1, and is output as right-eye image enhancement data RW (n).
- the data emphasizing unit 20d receives the right-eye image data RI (n-1) obtained by delaying the right-eye image data RI (n) by one frame period by the delay unit 10, and the left-eye image data LI (n). Based on the difference, the left eye image data LI (n) is enhanced by the enhancement coefficient K4 having a smaller enhancement gain than the enhancement coefficient K2, and is output as the left eye image enhancement data LW (n).
- the time division output unit 50 enhances the image enhancement data RE (n) for the right eye enhanced by the enhancement coefficient K1 from the data enhancement unit 20a and the image enhancement for the left eye enhanced by the enhancement coefficient K2 from the data enhancement unit 20b.
- Data LE (n), right-eye image enhancement data RW (n) enhanced by the enhancement coefficient K3 from the data enhancement unit 20c, and left-eye image enhancement enhanced by the enhancement coefficient K4 from the data enhancement unit 20d Data LW (n) is input and held. Then, based on a predetermined frequency, that is, 240 (frames / second), time-division output is performed, and time axis enhancement processing is performed only when switching between left-eye image data and right-eye image data.
- Image enhancement data LE (n) and right-eye image enhancement data RE (n) are output, and then the left-eye image enhancement data LW (n) and right-eye subjected to time-axis enhancement processing with weak enhancement coefficients K3 and K4 Image enhancement data RW (n) is output.
- the time-division output unit 50 (1) left-eye image enhancement data LE (n) that has been subjected to time-axis enhancement processing using the enhancement coefficient K1, (2) left Left-eye image enhancement data LW (n) subjected to time-axis enhancement with an enhancement coefficient K3 weaker than the enhancement coefficient K1 of the eye-use image enhancement data LE, and (3) right-eye subjected to time-axis enhancement processing using the enhancement coefficient K2.
- Image enhancement data RE (n) (4) Right-eye image enhancement data RW (n) that has been subjected to time-axis enhancement processing using an enhancement coefficient K4 that is weaker than the enhancement coefficient K2 of the right-eye image enhancement data RE (n), Output in time-sharing order and display.
- the stereoscopic image display device 3 compensates the liquid crystal response with the image enhancement data LE (n) and RE (n) subjected to the time axis enhancement processing with the strong enhancement coefficients K1 and K2, and the left-eye image data and the right-eye image data.
- the image enhancement data LW (n) and RW (n) that have been subjected to the time axis enhancement processing with the weak enhancement coefficients K3 and K4 are displayed until the left and right data are changed. By doing so, it is possible to provide a metastable period in a state close to the stable period described in the second embodiment by displaying the image enhancement data LW (n) and RW (n).
- FIG. 10 is a diagram illustrating the response characteristics of the time-division output unit 50 included in the stereoscopic image display device 3.
- the left eye image enhancement subjected to the time axis enhancement processing with the strong enhancement coefficient K1 the left eye image enhancement subjected to the time axis enhancement processing with the weak enhancement coefficient K3.
- the output period of the left-eye image enhancement data LW (n) becomes a metastable period, and the right-eye image enhancement that has been subjected to the time-axis enhancement process by the strong enhancement coefficient K2.
- the output period of the right-eye image enhancement data RW (n) is output by outputting the right-eye image enhancement data RW (n) that has been subjected to the time axis enhancement processing using the weak enhancement coefficient K4.
- the inside is a metastable period, and crosstalk can be further improved.
- the memory throughput of the stereoscopic image display device 3 is equal to the memory throughput of the stereoscopic image display device 2.
- the total throughput of the memory is 41804 compared to the case of 240 (frame / second) display according to the conventional example in which the time axis enhancement processing is performed on the left eye image data and the right eye image data after time division processing.
- the total throughput value of the memory is 29860 (Mbit / second), which is improved in the case of the stereoscopic image display device 3.
- the time axis enhancement process is performed before the time division process, similarly to the stereoscopic image display apparatuses 1 and 2 according to the first and second embodiments.
- the number of input / output terminals of the frame memory can be reduced, the throughput of data transfer between the delay unit and the frame memory can be kept low, and the wiring area can also be reduced.
- the apparatus load can be reduced.
- compensation of the response characteristic of the liquid crystal is performed only when switching is performed by the image enhancement data LE (n) and RE (n) that have been subjected to the time axis enhancement processing by the strong enhancement coefficients K1 and K2. Thereafter, until the left-eye image data and the right-eye image data are switched, the image enhancement data LW (n) and RW (n) subjected to the time-axis enhancement processing with the weak enhancement coefficients K3 and K4 are displayed. It is the structure which provides a stable period.
- the weak enhancement coefficient The data enhancement units 20c and 20d for K3 and K4 can handle this.
- Example 4 In the stereoscopic image display apparatuses 1 to 3 according to the first to third embodiments, in the stereoscopic image display by the time division method, intermittent display is performed by the shutter glasses. Therefore, flicker interference occurs when the intermittent period of the shutter glasses is extremely low. There is a case.
- the occurrence of flicker interference is not uniquely determined due to environmental factors such as brightness and individual differences. For example, a normal video engineer is perceived as having a permissible level although flicker interference is felt at a frame rate (intermittent period) of 48 to 50 (frames / second), for example. Further, when the frame rate is 60 (frames / second), it is said that there is almost no problem that is hardly felt or a level that is felt slightly. When the frame rate is 75 (frames / second), it is said that the level is not felt at all, that is, the detection limit.
- the occurrence of flicker interference varies depending on the individual and may change depending on the environment such as brightness.
- the frame rate is 60 (frames / second) or more
- the observer hardly feels flicker.
- the degree of flicker interference increases as the frame rate decreases.
- most film images are produced at a frame rate of 24 (frames / second).
- the fourth embodiment when the input frame rate is sufficiently low, that is, when it is equal to or less than the first predetermined value (here, 24 (frame / second) as an example), flicker interference does not occur or is practically used.
- the second predetermined value here, 48 (frames / second) as an example
- performing time axis emphasis processing and performing time-division stereoscopic display processing A stereoscopic image display device that outputs a stereoscopic image at a frame rate of 96 (frames / second) will be described as an example.
- the specific method of frame rate conversion for raising the frame rate is not limited to the present embodiment, and can be combined with any of the methods of the first to third embodiments.
- FIG. 11 is a block diagram illustrating a configuration example of the stereoscopic image display device 4 according to the fourth embodiment.
- the stereoscopic image display device 4 includes the left-eye image data LI (n) input at 24 (frames / second) before the stereoscopic image display device 1 according to the first embodiment.
- the frame rate conversion processing units 60a and 60b for converting the frame rate of the right-eye image data RI (n) to 48 (frames / second) are provided.
- a frame rate conversion means in the frame rate conversion processing units 60a and 60b a pull-down process for simply outputting image data repeatedly, or a motion compensation for inserting a motion compensated frame by detecting a motion vector of the image data.
- Two types, such as a type frame rate conversion process, are representative, but are not limited to these processes.
- the stereoscopic image display device 4 converts the image data RI for right eye converted from 24 (frames / second) to 48 (frames / second) by the frame rate conversion processing units 60a and 60b.
- the delay unit 10 delays' (n), and the right-eye image data RI ′ (n) and the left-eye image data LI ′ (n) are emphasized by the data enhancement unit 20a and the data enhancement unit 20b.
- the image is output to the time division output unit 30 as the image enhancement data RE ′ (n) for the right eye and the image enhancement data LE ′ (n) for the left eye (frame / second).
- the right-eye image enhancement data RE ′ (n) and the left-eye image enhancement data LE ′ (n) input to the time-division output unit 30 are 48 (frames / second).
- the frame rate is 96 (frame / second) corresponding to the double speed rate.
- the time axis enhancement process is performed before the time-series conversion process, similarly to the stereoscopic image display apparatuses 1 to 3 according to the first to third embodiments.
- the number of input / output terminals of the unit 10 and the frame memory 31 can be reduced, the throughput of data transfer between the delay unit 10 and the frame memory 31 can be reduced, and the wiring area can also be reduced.
- the data processing device load can be reduced.
- the frame rates of the left-eye image data LI and the right-eye image data RI input at 24 are set to 48 (frames / second).
- the frame rate conversion processing units 60a and 60b that perform the conversion in (1) are provided in front of the data emphasizing units 20a and 20b and the delay unit 10. Therefore, when the right-eye image enhancement data RE ′ (n) and the left-eye image enhancement data LE ′ (n) are output from the time division output unit 30, the double speed rate is 96 (frames / second). Therefore, the intermittent period is 60 (frames / second) or more, and the observer can hardly perceive flicker.
- a frame rate in which flicker interference does not occur due to the frame rate conversion processing or which is practically acceptable when the input frame rate is equal to or lower than a first predetermined value (for example, 24 (frames / second)), a frame rate in which flicker interference does not occur due to the frame rate conversion processing or which is practically acceptable. Is increased to a second predetermined value (for example, 48 (frames / second)), and then time-axis emphasis processing is performed and time-series conversion processing is performed, so that a three-dimensional image is obtained at a frame rate of 96 (frames / second).
- a first predetermined value for example, 24 (frames / second)
- a second predetermined value for example, 48 (frames / second)
- time-axis emphasis processing is performed and time-series conversion processing is performed, so that a three-dimensional image is obtained at a frame rate of 96 (frames / second).
- writing to the frame memory is performed at a low input frame rate (24 (frames / second)), and the frame rate conversion processing is performed by reading from the frame memory that is the subsequent stage of the data emphasizing units 20a and 20b.
- a stereoscopic image display device that converts a frame rate by reading while performing pull-down processing and outputs a stereoscopic image at a frame rate of 96 (frames / second) will be described as an example.
- the image enhancement data that is finally output in a time division manner from the time division output unit 30 is the left eye image enhancement data LE (n), the right eye image enhancement.
- the right-eye image enhancement data RE (n-1) one frame before may be used.
- the time division output unit reads the frame memory from the frame memory while performing pull-down processing, that is, reads the same image frame repeatedly, thereby improving the frame rate.
- the left eye image data LI (n) is also preliminarily connected to the right eye image data RI (n) of the same frame n.
- a data emphasis unit 20e that forms emphasis data based on the difference is provided.
- FIG. 12 is a block diagram illustrating a configuration example of the stereoscopic image display device 5 according to the fifth embodiment.
- the stereoscopic image display device 5 includes a delay unit 10, a data enhancement unit 20a, a data enhancement unit 20b, a data enhancement unit 20e, and a time division output unit 70.
- the delay unit 10, the data enhancement unit 20a, and the data enhancement unit 20b are the same as those included in the stereoscopic image display device 1 according to the first embodiment, and thus the description thereof is omitted.
- the right eye image data RI (n) and the left eye image data LI (n) are input to the data enhancement unit 20e at the same timing as the data enhancement unit 20a. Then, the difference (LI (n) ⁇ RI (n)) is multiplied by the enhancement coefficient K5, and the multiplication result is added to the left-eye image data LI (n), whereby the left-eye image data LI ( n) is emphasized and output to the time division output unit 70 as left-eye image enhancement data LE ′′ (n).
- the enhancement coefficient K5 is smaller or larger than the enhancement coefficient K2 or the enhancement coefficient K4. Value or even the same value.
- the time division output unit 70 is held in the frame memory 71 in order to prevent flicker and the like caused by the low input frame rate of image data input at a frame rate of 24 (frames / second).
- Left-eye image enhancement data LE (n), right-eye image enhancement data RE (n), and left-eye image enhancement data LE ′′ (n) are sequentially output in a time division manner.
- FIG. 13 is a diagram illustrating a state after the time division processing in the time division output unit 70 provided in the stereoscopic image display device 5.
- the input frame rate to the time-division output unit 70 is 24 (frames / second)
- the left-eye image data and right-eye image data switching cycle is 48 (frames / second)
- data is read from the frame memory.
- the period is 96 (frames / second).
- the time-division output unit 70 included in the stereoscopic image display device 5 performs left-eye image enhancement data LE (n), right-eye corresponding to the timing at which the same frame n is input by time-division processing while performing pull-down processing.
- pulling down each image data that is, repeating (here, twice for convenience) by reading out the same frame at a frame rate of 96 (frames / second) corresponding to a quadruple speed rate, Division and outputs.
- the same data is output twice as the right-eye image enhancement data RE (n), whereas the left-eye image enhancement data LE (n).
- the left-eye image enhancement data LE (n) is output at the first output of the frame switching, whereas the left-eye image enhancement is performed at the second repetition data output timing.
- the left-eye image enhancement data LE ′′ (n) is output instead of the data LE (n).
- the right-eye image enhancement data RE (1), RE (2),..., The left-eye image are displayed on the stereoscopic image display device 5 at 24 (frames / second), respectively.
- the time division output unit 70 performs time division at a frame rate of 96 (frames / second) corresponding to the quadruple speed rate, and LE ( 1), RE (1), LE ′′ (1), RE (1), LE (2), RE (2), LE ′′ (2), RE (2),. Emphasized data will be output.
- the left-eye image enhancement is read out second time.
- the image data before the data LE ′′ (n) is based on the same image data R (n) and L (n) as the image enhancement data LE ′′ (n) for the left eye of the same frame n, a different enhancement coefficient K5
- the image enhancement data LE ′′ (n) for the left eye subjected to the time axis enhancement processing is provided, so that a more natural image can be provided to the observer.
- FIG. 14 is a diagram showing memory throughput at a frame rate display of 240 (frames / second) according to a conventional example in which time axis enhancement processing is performed after time-sharing processing of left-eye image data and right-eye image data.
- FIG. 15 is a diagram illustrating the memory throughput when the time-division output unit 70 of the stereoscopic image display device 5 according to the fifth embodiment reads out from the frame memory 71 in a time-division manner while performing pull-down processing.
- the left-eye image enhancement data LE (n), the right-eye image enhancement data RE (n), the left-eye image to the frame memory 71 When each writing of the emphasized data LE ′′ (n) is 24 (frame / second), the throughput is 1194 (Mbit / second). Reading from the frame memory 71 is 4778 (96 (frame / second)). Mbit / second), and writing to the delay unit 10 and reading from the delay unit 10 are 1194 (Mbit / second) at 24 (frame / second), so that the total is 10748 (Mbit / second).
- the total throughput of the memory is 16722 (Mbit / second).
- the total throughput value of the memory is 10748 (Mbit / second), which is improved.
- the time axis enhancement processing is performed before the time division processing, similarly to the stereoscopic image display devices 1 to 4 of the first to fourth embodiments.
- the number of input / output terminals of the frame memory 71 can be reduced, the throughput of data transfer between the delay unit 10 and the frame memory 71 can be reduced, and the wiring area can also be reduced.
- the data processing apparatus load can be reduced.
- the time-division output unit 70 includes the left-eye image enhancement data LE (n), the right-eye image enhancement data RE (n), and the left-eye image stored in the frame memory 71.
- the emphasized data LE ′′ (n) is converted into a frame rate of 96 (frame / second) corresponding to the quadruple speed rate with respect to the input frame rate of 24 (frame / second), and is output in a time division manner. Flickers and the like caused by a low input frame rate of 24 (frames / second) can be prevented.
- the time division output unit 70 when the time division output unit 70 reads out time-divisionally while pulling down from the frame memory 71, that is, when the same image frame is repeatedly read out, the left eye read out the second time
- the image data before the image enhancement data LE ′′ (n) for the image is based on the same image data RI (n) and LI (n) as the image enhancement data LE ′′ (n) for the left eye of the same frame n, they are different. Since the image enhancement data LE ′′ (n) for the left eye that has been subjected to the time axis enhancement processing using the enhancement coefficient K5, a more natural image can be provided to the observer.
- the stereoscopic image display device 5 according to the fifth embodiment has been described as applied to the stereoscopic image display device 1 according to the first embodiment illustrated in FIG. 1, but the stereoscopic image display device 2 according to the second embodiment illustrated in FIG. 5. May be adapted.
- the configuration may be such that left-eye image enhancement data LE ′′ (n) subjected to time-axis enhancement processing with the data of the same frame n is output to the frame memory 41.
- the third embodiment shown in FIG. The present invention may be applied to such a stereoscopic image display device 3.
- This can be realized by providing the left-eye image enhancement data LW ′ (n) having a smaller enhancement degree than the image enhancement data LE ′′ (n).
- the order of time-division output of the left-eye and right-eye image enhancement data is left eye, right eye, left eye,...
- the present invention is not limited to this, and it is of course possible to perform time-division output in the reverse order of right eye, left eye, right eye,.
- the description has been made on the assumption that the input image data RI (n) for the right eye and the image data LI (n) for the left eye are given in parallel.
- the right-eye image data RI (n) and the left-eye image data LI (n) are not given in parallel, and the left-eye is based on the input right-eye image data RI (n).
- the stereoscopic image display device is configured as hardware.
- the present invention is not limited to this, and the stereoscopic images of the previous Embodiments 1 to 5 are described.
- the program may be executed in software by a program in which functions of the display device are programmed and a CPU or the like that executes the program.
- the liquid crystal stereoscopic image display device has been described as an example.
- the present invention is not limited to this, and other stereoscopic image display devices such as organic EL, plasma, cathode ray tube, and SED are used. Is also applicable.
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Abstract
Description
実施例1では、60(フレーム/秒)で入力される左眼用画像データと右眼用画像データとに基づいて、最終的な時系列出力順が左眼用画像、右眼用画像の順で時分割処理をして120(フレーム/秒)の立体画像として出力する立体画像表示装置を例に挙げて説明する。なお、左眼用画像データは観察者の左眼で視認させるための画像データであり、右眼用画像データは観察者の右眼で視認させるための画像データである。
LE(n)=LI(n)+K2(LI(n)-RI(n-1))・・・(1)
を用いて、左眼用画像強調データLE(n)を算出する。
RE(n)=RI(n)+K1(RI(n)-LI(n))・・・(2)
を用いて、右眼用画像強調データRE(n)を算出する。
次に、実施例2に係る立体画像表示装置2について説明する。
次に、実施例3に係る立体画像表示装置3について説明する。
実施例1~3の立体画像表示装置1~3では、時分割方式による立体画像表示において、シャッタ眼鏡によって間欠表示になってしまうため、シャッタ眼鏡の間欠周期が極端に低くなると、フリッカ妨害が生じる場合がある。
実施例4では、入力フレームレートが第1の所定値(例えば、24(フレーム/秒)。)以下の場合に、フレームレートの変換処理により、フリッカ妨害が生じない、もしくは実用上問題ないフレームレートである第2の所定値(例えば48(フレーム/秒)。)に引き上げた後に、時間軸強調処理をして、時系列変換処理を行うことにより、96(フレーム/秒)のフレームレートで立体画像を出力する立体画像表示装置を例に挙げて説明した。
10…遅延部
20a…データ強調部
20b…データ強調部
20c…データ強調部
20d…データ強調部
20e…データ強調部
21b…減算器
22b…強調係数乗算器
23b…加算器
30,40,50,70…時分割出力部
31,41,51,71…フレームメモリ
60a,60b…フレームレート変換処理部
Claims (5)
- 立体映像を表示するための右眼用画像データまたは左眼用画像データのうち一方の画像データを1フレーム期間遅延させて遅延データとして出力する遅延部と、
前記右眼用画像データと、前記左眼用画像データとの差に基づいて、前記一方の画像データを第1の強調係数により強調して第1の強調データを出力する第1のデータ強調部と、
前記右眼用画像データまたは前記左眼用画像データのうち他方の画像データと、前記遅延部によって1フレーム期間遅延された前記遅延データとの差に基づいて、前記他方の画像データを第2の強調係数により強調して第2の強調データとして出力する第2のデータ強調部と、
前記第1の強調データと、前記第2の強調データとを記憶して、前記第1の強調データと、前記第2の強調データを所定のフレームレートで時分割して出力する時分割出力部と、
を有することを特徴とする立体画像表示装置。 - 立体映像を表示するための右眼用画像データまたは左眼用画像データのうち一方の画像データを1フレーム期間遅延させて遅延データとして出力する遅延部と、
前記右眼用画像データと、前記左眼用画像データとの差に基づいて、前記一方の画像データを第1の強調係数により強調して第1の強調データを出力する第1のデータ強調部と、
前記右眼用画像データまたは前記左眼用画像データのうち他方の画像データと、前記遅延部によって1フレーム期間遅延された前記遅延データとの差に基づいて、前記他方の画像データを第2の強調係数により強調して第2の強調データとして出力する第2のデータ強調部と、
前記第1の強調データと、前記一方の画像データと、前記第2の強調データと、前記他方の画像データとを記憶、前記第1の強調データと、前記一方の画像データと、前記第2の強調データと、前記他方の画像データの順序で、所定のフレームレートにより時分割して出力する時分割出力部と、
を有することを特徴とする立体画像表示装置。 - 立体映像を表示するための右眼用画像データまたは左眼用画像データのうち一方の画像データを1フレーム期間遅延させて遅延データとして出力する遅延部と、
前記右眼用画像データと、前記左眼用画像データとの差に基づいて、前記一方の画像データを第1の強調係数により強調して第1の強調データを出力する第1のデータ強調部と、
前記右眼用画像データまたは前記左眼用画像データのうち他方の画像データと、前記遅延部によって1フレーム期間遅延された前記遅延データとの差に基づいて、前記他方の画像データを第2の強調係数により強調して第2の強調データとして出力する第2のデータ強調部と、
前記一方の画像データと、前記他方の画像データとの差に基づいて、前記一方の画像データを前記第1の強調係数より強調ゲインの小さい第2の強調係数により強調して第3の強調データとして出力する第3のデータ強調部と、
前記他方の画像データと、前記遅延データとの差に基づいて、前記他方の画像データを前記第2の強調係数より強調ゲインの小さい第4の強調係数により強調して第4の強調データとして出力する第4のデータ強調部と、
前記第1の強調データと、前記第3の強調データと、前記第2の強調データと、前記第4の強調データとを記憶し、前記第1の強調データと、前記第3の強調データと、前記第2の強調データと、前記第4の強調データの順序で、所定のフレームレートで時分割して出力する時分割出力部と、
を有することを特徴とする立体画像表示装置。 - 前記左眼用画像データおよび前記右眼用画像データのフレームレートが第1の所定値以下の場合に、第2の所定値以上のフレームレートに変換して前記遅延部、前記第1および第2のデータ強調部に出力するフレームレート変換部を、
更に有することを特徴とする請求項1または2に記載の立体画像表示装置。 - 右眼用画像データまたは左眼用画像データのうち一方の画像データを1フレーム期間遅延させて遅延データとして出力する遅延部と、
前記右眼用画像データと、前記左眼用画像データとの差に基づいて、前記一方の画像データを第1の強調係数により強調して第1の強調データを出力する第1のデータ強調部と、
前記右眼用画像データまたは前記左眼用画像データのうち他方の入力データと、前記遅延部によって1フレーム期間遅延された前記遅延データとの差に基づいて、前記他方の入力データを第2の強調係数により強調して第2の強調データとして出力する第2のデータ強調部と、
前記一方の画像データと、前記他方の画像データとの差に基づいて、前記一方の画像データと前記他方の画像データとのうち同一フレームに基づいて時系列順で先に表示される画像データを第5の強調係数により強調して第5の強調データとして出力する第5のデータ強調部と、
前記第1の強調データと、前記第2の強調データと、前記第5の強調データとを記憶し、前記第1の強調データと前記第2の強調データのうち時系列順で先に表示される一方の強調データ、他方の強調データ、前記第5の強調データ、前記他方の強調データの順序で、時分割して出力することにより、所定の周波数以上に変換して出力する時分割出力部と、
を有することを特徴とする立体画像表示装置。
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EP11759324.4A EP2555529A4 (en) | 2010-03-24 | 2011-03-18 | 3D IMAGE DISPLAY DEVICE |
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JP2014042133A (ja) * | 2012-08-22 | 2014-03-06 | Mitsubishi Electric Corp | 立体映像表示システム、立体映像表示装置およびフレームレート制御方法 |
WO2014030411A1 (ja) | 2012-08-24 | 2014-02-27 | シャープ株式会社 | 液晶表示装置およびその駆動方法 |
WO2014054331A1 (ja) | 2012-10-02 | 2014-04-10 | シャープ株式会社 | 液晶表示装置およびその駆動方法 |
KR102104333B1 (ko) | 2013-05-28 | 2020-04-27 | 삼성디스플레이 주식회사 | 입체 영상 표시 장치 |
KR102582841B1 (ko) * | 2016-07-07 | 2023-09-27 | 삼성디스플레이 주식회사 | 표시 장치 |
TWI790773B (zh) * | 2021-10-12 | 2023-01-21 | 宏碁股份有限公司 | 三維影像顯示系統及其操作方法 |
CN116110326A (zh) * | 2021-11-09 | 2023-05-12 | 深圳市奥拓电子股份有限公司 | 一种时分复用的led显示驱动方法及其芯片 |
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