WO2015025575A1 - 信号生成装置、信号生成プログラム、信号生成方法、及び、画像表示装置 - Google Patents
信号生成装置、信号生成プログラム、信号生成方法、及び、画像表示装置 Download PDFInfo
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Definitions
- the present disclosure relates to a signal generation device, a signal generation program, a signal generation method, and an image display device.
- a red sub-pixel that displays red in addition to three sub-pixels, a red sub-pixel that displays red, a green sub-pixel that displays green, and a blue sub-pixel that displays blue
- a white sub-pixel that displays white is added.
- a color display image display device including white sub-pixels
- bright display is possible when displaying an achromatic color or a color in the vicinity thereof, but a relatively dark display is displayed when displaying a high saturation color. I have to be.
- the displayable color gamut becomes narrower as the brightness increases.
- the maximum value of a video signal acquired by a camera or the like is determined regardless of the saturation. Therefore, when an image is to be displayed on a color display image display device having white subpixels based on such a video signal, the saturation and brightness of the portion that should be displayed with high saturation and brightness are reduced. The display is relatively lowered.
- Patent Document 1 Japanese Translation of PCT International Publication No. 2009-520241 (Patent Document 1) describes that brightness reduction is compensated by uniformly reducing the saturation of a video signal. ing.
- an object of the present disclosure is to display a high-saturation image when displaying a low-lightness image, and to sufficiently compensate for a decrease in lightness when displaying a high-lightness image.
- a signal generation device of the present disclosure is provided.
- a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a signal generation device that generates a signal for driving an image display unit in which fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; It is a signal generator.
- a signal generation program of the present disclosure for achieving the above-described object is A first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a first subpixel that displays the first primary color, a second subpixel that displays the second primary color, a third subpixel that displays the third primary color, and a fourth subpixel based on the third input image signal for By being executed in a signal generation device that generates a signal for driving an image display unit in which the fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; This is a signal generation program.
- a signal generation method of the present disclosure for achieving the above object is as follows.
- a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a first subpixel that displays the first primary color, a second subpixel that displays the second primary color, a third subpixel that displays the third primary color, and a fourth subpixel based on the third input image signal for A signal generation method for generating a signal for driving an image display unit in which fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; This is a signal generation method.
- an image display device of the present disclosure for achieving the above object is
- the first sub-pixel displaying the first primary color, the second sub-pixel displaying the second primary color, the third sub-pixel displaying the third primary color, and the fourth sub-pixel displaying the fourth color are a two-dimensional matrix.
- An image display unit arranged in a shape, and A first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a signal generation unit that generates a signal for driving the image display unit based on the third input image signal for With
- the signal generator The first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit. , The second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; An image display device.
- an image is displayed in a state where white subpixels are effectively used.
- an image with high saturation can be displayed, and when displaying an image with high lightness, compensation for a decrease in lightness can be sufficient.
- FIG. 1 is a conceptual diagram of an image display apparatus according to the first embodiment.
- FIG. 2 is a schematic block diagram for explaining the configuration of the color space conversion unit.
- FIG. 3A is a schematic diagram for explaining an HSV color space of an input video signal.
- FIG. 3B is a schematic diagram for explaining an HSV color space that can be displayed by the image display unit.
- FIG. 4 is a schematic diagram for explaining that the brightness is improved by reducing the saturation.
- FIG. 5 is a schematic diagram for explaining the operation of the LUT provided in the saturation reduction amount calculation unit.
- FIG. 6 is a schematic diagram for explaining a difference between a case where the saturation reduction is performed in a fixed manner and a case where the saturation reduction is performed dynamically.
- FIG. 7 shows the case where the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed in the image display unit. It is a schematic diagram for demonstrating the operation
- FIG. 8 is a schematic block diagram for explaining another configuration example of the color space conversion unit.
- the signal generation device of the present disclosure the signal generation device that executes the signal generation program of the present disclosure, and the signal generation device used in the image display device of the present disclosure (hereinafter, these may be simply referred to as the signal generation device of the present disclosure).
- a color space conversion unit that calculates a position in the color space based on values of the first input image signal, the second input image signal, and the third input image signal;
- a saturation reduction amount calculation unit for calculating a saturation reduction amount based on the calculated position in the color space;
- a saturation control unit that outputs a first input image signal, a second input image signal, and a third input image signal in which the saturation is changed based on the calculated saturation reduction amount; and Based on the first input image signal, the second input image signal, and the third input image signal with the saturation changed, the first subpixel, the second subpixel, the third subpixel, and the fourth subpixel
- a multi-primary color signal generation unit for generating a signal for driving It can be set as the structure provided with.
- the method is not particularly limited.
- the image display unit may be suitable for displaying moving images or may be suitable for displaying still images.
- the image display unit may be, for example, a self-luminous system such as an electroluminescence display device, or may be a transmissive type or a reflective type like a liquid crystal display device.
- VGA 640, 480
- S-VGA 800, 600
- XGA 1024, 768
- APRC 1152, 900
- S-XGA 1280, 1024
- U-XGA 1600, 1200
- HD-TV (1920, 1080)
- Q-XGA (2048, 1536
- 720, 480 (1280, 960)
- Some of the display resolutions can be exemplified, but are not limited to these values.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSV color signal. It can be configured.
- the saturation reduction amount calculation unit may be configured to calculate the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSL color signal. It can also be configured.
- the saturation reduction amount calculation unit can be configured to calculate the saturation reduction amount based on the L value and the S value in the HSL color signal of the color space conversion unit.
- the saturation control unit performs predetermined arithmetic processing on the values of the first input image signal, the second input image signal, and the third input image signal based on the calculated amount of decrease in saturation, thereby reducing the saturation.
- a first input image signal, a second input image signal, and a third input image signal that are changed, It can be configured.
- the fourth color may be white.
- the present invention is not limited to this, and the fourth color may be, for example, yellow, cyan, or magenta.
- the signal generation unit and the signal generation device used in the present disclosure can be configured by an arithmetic circuit or a storage device, for example. These can be configured using known circuit elements or the like.
- the signal generation unit and the signal generation device may be configured to operate based on physical connection by hardware, or may be configured to operate based on a program.
- the signal generation processing can be configured to process the input video signal in real time. In some cases, the processing may be performed in non-real time. For example, the input video signal data stored in the storage unit is sequentially processed, the processed signal data is stored in the storage unit, and the processed signal data is read in response to a user request. You can also.
- the saturation reduction amount calculation unit may refer to a lookup table (LUT) based on the L value and the S value in the HSL color signal of the color space conversion unit, or the L value And an arithmetic process using a function having S values as arguments may be employed.
- LUT lookup table
- the first embodiment relates to a signal generation device, a signal generation program, a signal generation method, and an image display device according to the present disclosure.
- FIG. 1 is a conceptual diagram of an image display device according to the first embodiment.
- the image display apparatus 1 includes a first subpixel that displays a first primary color, a second subpixel that displays a second primary color, a third subpixel that displays a third primary color, and a fourth subpixel.
- the image display unit 20 is formed by arranging the fourth sub-pixels 22 for displaying the color of the image in a two-dimensional matrix, and the signal generation unit (signal generation device) 10 generates a signal for driving the image display unit 20. Yes.
- the image display unit 20 is composed of a self-luminous display panel including a current-driven light emitting unit such as an organic electroluminescence panel.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively, and the fourth color is white.
- the image display unit 20 includes a first sub-pixel displaying the first primary color, a second sub-pixel displaying the second primary color, a third sub-pixel displaying the third primary color, and a fourth sub-pixel displaying the fourth color.
- the sub-pixels are represented by reference numeral 22 R , reference numeral 22 G , reference numeral 22 B , and reference numeral 22 W , respectively.
- the pixel 22 of the image display unit 20 includes a set of a first subpixel 22 R , a second subpixel 22 G , a third subpixel 22 B , and a fourth subpixel 22 W.
- a display region in which the pixels 20 are arranged in a matrix is indicated by reference numeral 21.
- white chromaticity (x, y) by the first subpixel 22 R , second subpixel 22 G , and third subpixel 22 B and white chromaticity by the fourth subpixel 22 W ( x, y) are the same.
- the signal generator 10 is supplied with an input image signal from the outside corresponding to each pixel of the image to be displayed.
- the input image signal input from the outside is, for example, a 9-bit RGB linear signal.
- the signal output from the signal generation unit 10 is an 8-bit linear signal, for example.
- the correction may be appropriately performed in consideration of nonlinearity.
- the signal generation unit 10 performs display in which the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels of the image to be displayed exceed the color reproduction range that can be displayed on the image display unit 20. If it is a signal to be transmitted, the first input image signal, the second input image signal, and the third input image signal are subjected to a process of reducing the saturation, and based on these signals, the first subpixel 22 R , a signal for driving the second subpixel 22 G , the third subpixel 22 B , and the fourth subpixel 22 W is generated.
- the signal generation unit 10 operates based on a signal generation program stored in a storage unit (not shown).
- the first input image signal for red display is denoted by reference symbol R in
- the second input image signal for green display is denoted by reference symbol G in
- the third input image signal for blue display is denoted by reference symbol B in .
- the signals R in , G in , and B in take values between 0 and 511 depending on the luminance of the image to be displayed. Here, it is assumed that the minimum luminance is when the value is [0], and the maximum luminance is when the value is [511].
- the first input image signal R in , the second input image signal G in , and the third input image signal B in may be collectively expressed as input image signals R in , G in , B in. .
- the signal generator 10 A color space conversion unit 11 that calculates a position in the color space based on values of the first input image signal R in , the second input image signal G in , and the third input image signal B in ; A saturation reduction amount calculation unit 12 that calculates a saturation reduction amount based on the calculated position in the color space; A saturation control unit that outputs the first input image signal R in ′, the second input image signal G in ′, and the third input image signal B in ′ in which the saturation is changed based on the calculated saturation reduction amount 13 and Based on the first input image signal R in ′, the second input image signal G in ′, and the third input image signal B in ′ in which the saturation is changed, the first sub-pixel 22 R and the second sub-pixel 22 A multi-primary color signal generator 14 for generating signals for driving G , the third sub-pixel 22 B , and the fourth sub-pixel 22 W ; It has.
- the RGB input image signals R in , G in , and B in are input to the color space conversion unit 11 and the saturation control unit 13.
- the color space conversion unit 11 converts the input video signals R in , G in and B in from the RGB space to the HSV space.
- the saturation reduction amount calculation unit 12 calculates a saturation reduction gain according to the S value and the V value obtained from the input video signals R in , G in , B in .
- the saturation control unit 13 performs an operation for reducing the saturation of the input video signals R in , G in , B in using the saturation reduction gain.
- the video signal whose saturation has been reduced in this way is input to the multi-primary color converter 14.
- the multi-primary color conversion unit 14 performs processing for converting RGB space signals into multi-primary color space signals.
- the color space conversion unit 11 converts the input video signals R in , G in , B in from the RGB space to the HSL space
- the saturation reduction amount calculation unit 12 converts the input video signals R in , G in , B in A configuration in which a saturation reduction gain is calculated in accordance with the S value and the L value may be employed.
- FIG. 2 is a schematic block diagram for explaining the configuration of the color space conversion unit.
- the color space conversion unit 11 calculates a position in the color space by converting the first input image signal R in , the second input image signal G in , and the third input image signal B in into HSV color signals.
- the color space conversion unit 11 includes a maximum value calculation unit 111, a minimum value calculation unit 112, and an S value calculation unit 113.
- the function max () is a function that gives the maximum value of the argument
- the function min () is a function that gives the minimum value of the argument.
- the maximum value calculation unit 111 calculates the maximum value MAX as the V value. Further, the S value calculation unit 113 calculates the S value as in the following formula (1) based on the maximum value MAX and the minimum value MIN.
- the saturation reduction amount calculation unit 12 calculates the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit 11. Specifically, a saturation reduction gain that is multiplied by the S value is calculated. The saturation reduction gain is calculated by referring to a predetermined lookup table.
- FIG. 3A is a schematic diagram for explaining the HSV color space of the input video signal.
- FIG. 3B is a schematic diagram for explaining an HSV color space that can be displayed by the image display unit.
- the input video signals R in , G in , and B in take values between 0 and 511 depending on the luminance of the image to be displayed. Therefore, the HSV color space of the input video signal has a cylindrical shape as shown in FIG. 3A.
- the white display is carried out exclusively utilizing a fourth sub-pixel 22 W, and the maximum amount of a design in a fourth sub-pixel 22 W is the This is twice the maximum amount of white light when the 1 subpixel 22 R , the second subpixel 22 G , and the third subpixel 22 B all emit the brightest light in the design. Accordingly, the saturation is low image can be a bright display by utilizing a fourth subpixel 22 W. However, the operation of the fourth subpixel 22 W has to be suppressed as the image has higher saturation. As a result, the shape of the HSV color space that can be displayed by the image display unit 20 is cylindrical in the lower half, but is generally truncated in the upper half.
- the space shown in FIG. 3B is narrower than the space shown in FIG. 3A.
- the signal is a signal that displays beyond the color reproduction range that can be displayed on the image display unit 20.
- the look-up table referred to by the saturation reduction amount calculation unit 12 decreases the saturation as the S value and V value based on the input video signals R in , G in , and B in approach 1.
- Such a coefficient is set to be calculated.
- the S value is approximately 0.5 or less or when the V value is approximately 0.5 or less, it is not necessary to lower the S value, so the calculated coefficient is “1”.
- the lookup table referred to by the saturation reduction amount calculation unit 12 can be determined, for example, by an experiment using an actual machine, or can be theoretically determined based on the shape of the color space.
- the saturation control unit 13 performs predetermined arithmetic processing on the values of the first input image signal R in , the second input image signal G in , and the third input image signal B in based on the calculated saturation reduction amount. To output a first input image signal R in ′, a second input image signal G in ′, and a third input image signal B in ′ with different saturation.
- the calculated saturation reduction gain is input to the saturation control unit 13 and saturation control of the input video signals R in , G in , B in is performed.
- Saturation control is performed as in the following equation (2).
- the symbol Gs indicates a saturation reduction amount (saturation reduction gain) calculated in the HSV space. According to the above equation (2), the saturation S can be changed to Gs times without changing the hue H and brightness V before and after the calculation.
- saturation control is performed, and input video signals R in ′, G in ′, and B in ′ with varying saturation are obtained.
- the multi-primary color calculation unit 14 based on the input video signals R in ′, G in ′, and B in ′, the first sub pixel 22 R , the second sub pixel 22 G , the third sub pixel 22 B , and A signal for driving the fourth subpixel 22 W is generated.
- the input video signals R in , G in , and B in do not exceed the color reproduction range that can be displayed on the image display unit 20, an image with high saturation is displayed.
- the input video signals R in , G in , and B in exceed the color reproduction range that can be displayed on the image display unit 20, it is possible to sufficiently compensate for the decrease in brightness.
- the multi-primary color calculation unit 14 receives input video signals R in ′, G in ′, and B in ′, and the first sub pixel 22 R , the second sub pixel 22 G , the third sub pixel 22 B , and the first sub pixel 22 R , Signals R out , G out and B out for driving the four subpixels 22 W are output.
- the signals Rout , Gout , and Bout are 8-bit signals.
- a signal A shown in FIG. 7 shows an example in which the input video signals R in ′, G in ′, and B in ′ exceed the color reproduction range that can be displayed on the image display unit 20.
- 7 shows an example in which the input video signals R in ′, G in ′, and B in ′ exceed the color reproduction range that can be displayed on the image display unit 20.
- the color space conversion unit 11 converts the input video signals R in , G in , B in from RGB space to HSL space
- the saturation reduction amount calculation unit 12 converts the input video signals R in , G in , B in A configuration in which a saturation reduction gain is calculated in accordance with the S value and the L value may be employed.
- FIG. 8 is a schematic block diagram for explaining another configuration example of the color space conversion unit.
- This configuration example is a configuration in which an L value calculation unit 114 is further added to the color space conversion unit 111 described in FIG.
- the operations of the maximum value calculator 111, the minimum value calculator 112, and the S value calculator 113 have been described with reference to FIG.
- the L value calculation unit 114 calculates the value of the L value based on the following formula (10) based on the values of the input video signals R in , G in , B in and the luminance ratio coefficients Lr, Lg, Lb. To do.
- the saturation S can be converted as in the following equation (12) without changing the hue H and the luminance L before and after the calculation.
- Symbol S out is a saturation value after processing
- symbol S in is a saturation value before processing.
- the H value (hue value) is not considered in the calculation of the saturation reduction amount. However, the calculation may be performed in consideration of this.
- a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a signal generation device that generates a signal for driving an image display unit in which fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; Signal generator.
- a color space conversion unit that calculates a position in the color space based on values of the first input image signal, the second input image signal, and the third input image signal;
- a saturation reduction amount calculation unit for calculating a saturation reduction amount based on the calculated position in the color space;
- a saturation control unit that outputs a first input image signal, a second input image signal, and a third input image signal in which the saturation is changed based on the calculated saturation reduction amount; and Based on the first input image signal, the second input image signal, and the third input image signal with the saturation changed, the first subpixel, the second subpixel, the third subpixel, and the fourth subpixel
- a multi-primary color signal generation unit for generating a signal for driving With The signal generation device according to [1] above.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSV color signal.
- the signal generation device according to [2] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSL color signal.
- the signal generation device according to [2] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the L value and the S value in the HSL color signal of the color space conversion unit.
- the signal generation device according to [5] above.
- the saturation control unit performs predetermined arithmetic processing on the values of the first input image signal, the second input image signal, and the third input image signal based on the calculated amount of decrease in saturation, thereby reducing the saturation.
- a first input image signal, a second input image signal, and a third input image signal that are changed The signal generation device according to any one of [2] to [6].
- the fourth color is white, The signal generation device according to any one of [1] to [7].
- a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a first subpixel that displays the first primary color, a second subpixel that displays the second primary color, a third subpixel that displays the third primary color, and a fourth subpixel based on the third input image signal for By being executed in a signal generation device that generates a signal for driving an image display unit in which the fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; Signal generation program.
- the signal generator is A color space conversion unit that calculates a position in the color space based on values of the first input image signal, the second input image signal, and the third input image signal; A saturation reduction amount calculation unit for calculating a saturation reduction amount based on the calculated position in the color space; A saturation control unit that outputs a first input image signal, a second input image signal, and a third input image signal in which the saturation is changed based on the calculated saturation reduction amount; and Based on the first input image signal, the second input image signal, and the third input image signal with the saturation changed, the first subpixel, the second subpixel, the third subpixel, and the fourth subpixel A multi-primary color signal generation unit for generating a signal for driving With The signal generation program according to [9] above.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSV color signal.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSL color signal.
- the signal generation program according to [10] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the L value and the S value in the HSL color signal of the color space conversion unit.
- the signal generation program according to [13] above.
- the saturation control unit performs predetermined arithmetic processing on the values of the first input image signal, the second input image signal, and the third input image signal based on the calculated amount of decrease in saturation, thereby reducing the saturation.
- a first input image signal, a second input image signal, and a third input image signal that are changed The signal generation program according to any one of [10] to [14].
- the fourth color is white, The signal generation program according to any one of [9] to [15].
- a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a first subpixel that displays the first primary color, a second subpixel that displays the second primary color, a third subpixel that displays the third primary color, and a fourth subpixel based on the third input image signal for A signal generation method for generating a signal for driving an image display unit in which fourth sub-pixels for displaying colors are arranged in a two-dimensional matrix,
- the first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit.
- the second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; Signal generation method.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively. Calculating a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSV color signal; The signal generation method according to [17] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively. Calculating a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSL color signal; The signal generation method according to [17] above. [21] The saturation reduction amount calculation unit calculates the saturation reduction amount based on the L value and the S value in the HSL color signal of the color space conversion unit. The signal generation method according to [20] above. [22] Based on the calculated saturation reduction amount, the first input image signal, the second input image signal, and the third input image signal are subjected to predetermined arithmetic processing to change the saturation.
- the signal generation method according to any one of [17] to [21].
- the fourth color is white, The signal generation method according to any one of [17] to [22].
- the first sub-pixel displaying the first primary color, the second sub-pixel displaying the second primary color, the third sub-pixel displaying the third primary color, and the fourth sub-pixel displaying the fourth color are a two-dimensional matrix.
- An image display unit arranged in a shape, and A first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third primary color supplied corresponding to each pixel of the image to be displayed are displayed.
- a signal generation unit that generates a signal for driving the image display unit based on the third input image signal for With
- the signal generator The first input image signal when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals that display beyond the color reproduction range that can be displayed on the image display unit. , The second input image signal and the third input image signal are subjected to processing for reducing the saturation, and based on these signals, the first subpixel, the second subpixel, the third subpixel, and Generating a signal for driving the fourth sub-pixel; Image display device.
- a color space conversion unit that calculates a position in the color space based on values of the first input image signal, the second input image signal, and the third input image signal;
- a saturation reduction amount calculation unit for calculating a saturation reduction amount based on the calculated position in the color space;
- a saturation control unit that outputs a first input image signal, a second input image signal, and a third input image signal in which the saturation is changed based on the calculated saturation reduction amount; and Based on the first input image signal, the second input image signal, and the third input image signal with the saturation changed, the first subpixel, the second subpixel, the third subpixel, and the fourth subpixel
- a multi-primary color signal generation unit for generating a signal for driving With The image display device according to [24] above.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSV color signal.
- the image display device according to [25] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the V value and the S value in the HSV color signal of the color space conversion unit.
- the first primary color, the second primary color, and the third primary color are red, green, and blue, respectively.
- the color space conversion unit calculates a position in the color space by converting the first input image signal, the second input image signal, and the third input image signal into an HSL color signal.
- the image display device according to [25] above.
- the saturation reduction amount calculation unit calculates the saturation reduction amount based on the L value and the S value in the HSL color signal of the color space conversion unit.
- the image display device according to [28].
- the saturation control unit performs predetermined arithmetic processing on the values of the first input image signal, the second input image signal, and the third input image signal based on the calculated amount of decrease in saturation, thereby reducing the saturation.
- a first input image signal, a second input image signal, and a third input image signal that are changed The image display device according to any one of [25] to [29].
- the fourth color is white, The image display device according to any one of [25] to [30].
- SYMBOLS 1 ... Image display apparatus, 10 ... Signal generation part (signal generation apparatus), 20 ... Image display part, 21 ... Display area, 22 ... Pixel, 22R ... 1st sub Pixel, 22 G ... Second subpixel, 22 B ... Third subpixel 22 W ... Fourth subpixel, 111... Maximum value calculation unit, 112. ... S value calculator, 114 ... L value calculator, R in , R in '... first input image signal, G in , G in ' ... second input image signal, B in , B in ' ⁇ ⁇ ⁇ 3rd input image signal
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Abstract
Description
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成装置である。
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置において実行されることにより、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成プログラムである。
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成方法であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成方法である。
第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部、並びに、
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、画像表示部を駆動する信号を生成する信号生成部、
を備えており、
信号生成部は、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
画像表示装置である。
1.本開示に係る信号生成装置、信号生成プログラム、信号生成方法、及び、画像表示装置、全般に関する説明
2.第1の実施形態、その他
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に基づいて色空間上の位置を算出する色空間変換部、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する彩度制御部、及び、
彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する多原色信号生成部、
を備えている構成とすることができる。
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
構成とすることができる。この場合において、彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する構成とすることができる。
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
構成とすることもできる。この場合において、彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する構成とすることができる。
彩度制御部は、算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
構成とすることができる。
第1の実施形態は、本開示に係る信号生成装置、信号生成プログラム、信号生成方法、及び、画像表示装置に関する。
第1入力画像信号Rin、第2入力画像信号Gin、及び、第3入力画像信号Binの値に基づいて色空間上の位置を算出する色空間変換部11、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部12、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号Rin’、第2入力画像信号Gin’、及び、第3入力画像信号Bin’を出力する彩度制御部13、及び、
彩度を変化させた第1入力画像信号Rin’、第2入力画像信号Gin’、及び、第3入力画像信号Bin’に基づいて、第1副画素22R、第2副画素22G、第3副画素22B、及び、第4副画素22Wを駆動する信号を生成する多原色信号生成部14、
を備えている。
=0 (5.1)
Rout=511-2・0
=511 → 255に丸め (5.2)
Gout=0-2・0
=0 (5.3)
Bout=0-2・0
=0 (5.4)
=64 (6.1)
Rout=256-2・64
=128 (6.2)
Gout=128-2・64
=0 (6.3)
Bout=128-2・64
=0 (6.4)
=0 (8.1)
Rout=511-1・0
=511 → 255に丸め (8.2)
Gout=0-1・0
=0 (8.3)
Bout=0-1・0
=0 (8.4)
=32 (9.1)
Rout=256-1・32
=224 (9.2)
Gout=128-1・32
=96 (9.3)
Bout=128-1・32
=96 (9.4)
[1]
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成装置。
[2]
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に基づいて色空間上の位置を算出する色空間変換部、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する彩度制御部、及び、
彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する多原色信号生成部、
を備えている、
上記[1]に記載の信号生成装置。
[3]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
上記[2]に記載の信号生成装置。
[4]
彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する、
上記[3]に記載の信号生成装置。
[5]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
上記[2]に記載の信号生成装置。
[6]
彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する、
上記[5]に記載の信号生成装置。
[7]
彩度制御部は、算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
上記[2]ないし[6]のいずれかに記載の信号生成装置。
[8]
第4の色は白色である、
上記[1]ないし[7]のいずれかに記載の信号生成装置。
[9]
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置において実行されることにより、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成プログラム。
[10]
信号生成装置は、
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に基づいて色空間上の位置を算出する色空間変換部、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する彩度制御部、及び、
彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する多原色信号生成部、
を備えている、
上記[9]に記載の信号生成プログラム。
[11]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
上記[10]に記載の信号生成プログラム。
[12]
彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する、
上記[11]に記載の信号生成プログラム。
[13]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
上記[10]に記載の信号生成プログラム。
[14]
彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する、
上記[13]に記載の信号生成プログラム。
[15]
彩度制御部は、算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
上記[10]ないし[14]のいずれかに記載の信号生成プログラム。
[16]
第4の色は白色である、
上記[9]ないし[15]のいずれかに記載の信号生成プログラム。
[17]
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成方法であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成方法。
[18]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
上記[17]に記載の信号生成方法。
[19]
彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する、
上記[18]に記載の信号生成方法。
[20]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
上記[17]に記載の信号生成方法。
[21]
彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する、
上記[20]に記載の信号生成方法。
[22]
算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
上記[17]ないし[21]のいずれかに記載の信号生成方法。
[23]
第4の色は白色である、
上記[17]ないし[22]のいずれかに記載の信号生成方法。
[24]
第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部、並びに、
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、画像表示部を駆動する信号を生成する信号生成部、
を備えており、
信号生成部は、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
画像表示装置。
[25]
第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に基づいて色空間上の位置を算出する色空間変換部、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する彩度制御部、及び、
彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する多原色信号生成部、
を備えている、
上記[24]に記載の画像表示装置。
[26]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
上記[25]に記載の画像表示装置。
[27]
彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する、
上記[26]に記載の画像表示装置。
[28]
第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
上記[25]に記載の画像表示装置。
[29]
彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する、
上記[28]に記載の画像表示装置。
[30]
彩度制御部は、算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
上記[25]ないし[29]のいずれかに記載の画像表示装置。
[31]
第4の色は白色である、
上記[25]ないし[30]のいずれかに記載の画像表示装置。
Claims (11)
- 表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成装置。 - 第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に基づいて色空間上の位置を算出する色空間変換部、
算出した色空間上の位置に基づいて彩度低下量を算出する彩度低下量算出部、
算出した彩度低下量に基づいて彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する彩度制御部、及び、
彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する多原色信号生成部、
を備えている、
請求項1に記載の信号生成装置。 - 第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSV色信号に変換することによって色空間上の位置を算出する、
請求項2に記載の信号生成装置。 - 彩度低下量算出部は、色空間変換部のHSV色信号におけるV値とS値とに基づいて彩度低下量を算出する、
請求項3に記載の信号生成装置。 - 第1原色、第2原色、第3原色は、それぞれ、赤色、緑色、青色であり、
色空間変換部は、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号をHSL色信号に変換することによって色空間上の位置を算出する、
請求項2に記載の信号生成装置。 - 彩度低下量算出部は、色空間変換部のHSL色信号におけるL値とS値とに基づいて彩度低下量を算出する、
請求項5に記載の信号生成装置。 - 彩度制御部は、算出された彩度低下量に基づいて、第1入力画像信号、第2入力画像信号、及び、第3入力画像信号の値に所定の演算処理を施すことによって、彩度を変化させた第1入力画像信号、第2入力画像信号、及び、第3入力画像信号を出力する、
請求項2に記載の信号生成装置。 - 第4の色は白色である、
請求項1に記載の信号生成装置。 - 表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成装置において実行されることにより、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成プログラム。 - 表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部を駆動する信号を生成する信号生成方法であって、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
信号生成方法。 - 第1原色を表示する第1副画素、第2原色を表示する第2副画素、第3原色を表示する第3副画素、及び、第4の色を表示する第4副画素が2次元マトリクス状に配列されて成る画像表示部、並びに、
表示すべき画像の各画素に対応して供給される、第1原色を表示するための第1入力画像信号、第2原色を表示するための第2入力画像信号、及び、第3原色を表示するための第3入力画像信号に基づいて、画像表示部を駆動する信号を生成する信号生成部、
を備えており、
信号生成部は、
画素に対応する第1入力画像信号、第2入力画像信号、及び、第3入力画像信号が画像表示部において表示できる色の再現範囲を超える表示をする信号である場合には第1入力画像信号、第2入力画像信号、及び、第3入力画像信号に対して彩度を低下させる処理を行い、それらの信号に基づいて、第1副画素、第2副画素、第3副画素、及び、第4副画素を駆動する信号を生成する、
画像表示装置。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009500654A (ja) * | 2005-07-05 | 2009-01-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | ディスプレイを駆動するための信号を変換する方法及び装置並びに前記方法及び装置を利用したディスプレイ |
JP2009093182A (ja) * | 2007-10-09 | 2009-04-30 | Samsung Electronics Co Ltd | 色再現域外色転換を選択的に処理するシステム及び方法 |
JP2009518660A (ja) * | 2005-10-14 | 2009-05-07 | サムスン エレクトロニクス カンパニー リミテッド | 改良された色域マッピングならびにサブピクセルレンダリングシステムおよび方法 |
JP2013257477A (ja) * | 2012-06-14 | 2013-12-26 | Sony Corp | 表示装置、画像処理装置、および表示方法 |
JP2014006328A (ja) * | 2012-06-22 | 2014-01-16 | Sony Corp | 表示装置、画像処理装置、および表示方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3134660B2 (ja) * | 1994-04-14 | 2001-02-13 | 松下電器産業株式会社 | 色変換方法および色変換装置 |
US5790261A (en) * | 1995-05-25 | 1998-08-04 | Mita Industrial Co., Ltd. | Color correction device to correct errors in input and output portions of an image developing device and method thereof |
US6738510B2 (en) * | 2000-02-22 | 2004-05-18 | Olympus Optical Co., Ltd. | Image processing apparatus |
US7586497B2 (en) | 2005-12-20 | 2009-09-08 | Eastman Kodak Company | OLED display with improved power performance |
JP4845127B2 (ja) * | 2007-03-07 | 2011-12-28 | 株式会社リコー | 画像処理装置 |
KR101329125B1 (ko) * | 2007-08-13 | 2013-11-14 | 삼성전자주식회사 | RGB-to-RGBW 컬러 분해 방법 및 시스템 |
JP4457137B2 (ja) * | 2007-09-27 | 2010-04-28 | シャープ株式会社 | 透過型液晶表示装置 |
JP4839298B2 (ja) * | 2007-11-28 | 2011-12-21 | キヤノン株式会社 | 画像処理装置、画像処理装置の制御方法、プログラム及び記憶媒体 |
US8331659B2 (en) * | 2008-05-23 | 2012-12-11 | Broadcom Corporation | Method and apparatus for reduced complexity video processing via special chroma handling |
WO2013035635A1 (ja) * | 2011-09-07 | 2013-03-14 | シャープ株式会社 | 画像表示装置および画像表示方法 |
KR101851577B1 (ko) * | 2012-09-17 | 2018-04-24 | 삼성전자주식회사 | 유기 발광 다이오드 디스플레이의 동작을 제어할 수 있는 방법들과 장치들 |
MX346011B (es) * | 2013-02-21 | 2017-02-28 | Dolby Laboratories Licensing Corp | Gestion de exhibicion para video de alto intervalo dinamico. |
-
2014
- 2014-05-23 US US14/913,351 patent/US10152928B2/en not_active Expired - Fee Related
- 2014-05-23 TW TW103118150A patent/TWI625719B/zh not_active IP Right Cessation
- 2014-05-23 WO PCT/JP2014/063734 patent/WO2015025575A1/ja active Application Filing
- 2014-05-23 CN CN201480045477.XA patent/CN105684071B/zh not_active Expired - Fee Related
- 2014-05-23 JP JP2015532734A patent/JP6551230B2/ja not_active Expired - Fee Related
- 2014-05-23 KR KR1020167003526A patent/KR102184917B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009500654A (ja) * | 2005-07-05 | 2009-01-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | ディスプレイを駆動するための信号を変換する方法及び装置並びに前記方法及び装置を利用したディスプレイ |
JP2009518660A (ja) * | 2005-10-14 | 2009-05-07 | サムスン エレクトロニクス カンパニー リミテッド | 改良された色域マッピングならびにサブピクセルレンダリングシステムおよび方法 |
JP2009093182A (ja) * | 2007-10-09 | 2009-04-30 | Samsung Electronics Co Ltd | 色再現域外色転換を選択的に処理するシステム及び方法 |
JP2013257477A (ja) * | 2012-06-14 | 2013-12-26 | Sony Corp | 表示装置、画像処理装置、および表示方法 |
JP2014006328A (ja) * | 2012-06-22 | 2014-01-16 | Sony Corp | 表示装置、画像処理装置、および表示方法 |
Non-Patent Citations (2)
Title |
---|
AKIRA SAKAIGAWA ET AL.: "Low Power Consumption Technology for Ultra-High Resolution Mobile Display by Using RGBW System", PROCEEDINGS OF THE 19TH INTERNATIONAL DISPLAY WORKSHOPS IN CONJUNCTION WITH ASIA DISPLAY 2012, 3 December 2012 (2012-12-03), pages 709 - 712 * |
TAE NAKAHARA ET AL.: "69.1: Image Quality Assessment of Ultra-High Resolution Mobile Display Utilizing New RGBW Method", SID SYMPOSIUM DIGEST OF TECHNICAL PAPERS, vol. 44, no. ISSUE, June 2013 (2013-06-01), pages 955 - 958 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015166807A1 (ja) * | 2014-04-28 | 2015-11-05 | ソニー株式会社 | 画像処理装置、画像処理方法、および電子機器 |
WO2017051768A1 (ja) * | 2015-09-24 | 2017-03-30 | シャープ株式会社 | 表示装置および色空間の拡張方法 |
Also Published As
Publication number | Publication date |
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TWI625719B (zh) | 2018-06-01 |
TW201508731A (zh) | 2015-03-01 |
JPWO2015025575A1 (ja) | 2017-03-02 |
KR102184917B1 (ko) | 2020-12-01 |
CN105684071A (zh) | 2016-06-15 |
US10152928B2 (en) | 2018-12-11 |
JP6551230B2 (ja) | 2019-07-31 |
US20160203747A1 (en) | 2016-07-14 |
KR20160041923A (ko) | 2016-04-18 |
CN105684071B (zh) | 2019-08-23 |
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