WO2008012969A1 - Dispositif d'affichage à couleurs d'origine multiples - Google Patents

Dispositif d'affichage à couleurs d'origine multiples Download PDF

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Publication number
WO2008012969A1
WO2008012969A1 PCT/JP2007/058195 JP2007058195W WO2008012969A1 WO 2008012969 A1 WO2008012969 A1 WO 2008012969A1 JP 2007058195 W JP2007058195 W JP 2007058195W WO 2008012969 A1 WO2008012969 A1 WO 2008012969A1
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WO
WIPO (PCT)
Prior art keywords
pixels
luminance
sub
primary colors
primary color
Prior art date
Application number
PCT/JP2007/058195
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English (en)
Japanese (ja)
Inventor
Kazunari Tomizawa
Tomohiko Mori
Shun Ueki
Takao Muroi
Original Assignee
Sharp Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2008012969A1 publication Critical patent/WO2008012969A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables

Definitions

  • the present invention relates to a multi-primary color display device, and more particularly, to a multi-primary color display device including a signal conversion device that generates a multi-primary color signal from a video signal.
  • Color display devices such as color televisions and color monitors usually perform color expression by additively mixing RGB primary colors (ie, red, green and blue).
  • RGB primary colors ie, red, green and blue
  • each pixel of the color display device has red, green and blue sub-pixels corresponding to the RGB primary colors.
  • Such a display device receives a YCrCb (YCC) signal that can be converted into an RGB signal, and the luminance (luminance level) of the red, green, and blue sub changes based on the Y CrCb signal.
  • YCC YCrCb
  • RGB three primary colors
  • a multi-primary color display device that can expand the range has been proposed!
  • the luminance (luminance level) of a multi-primary color is determined based on a video signal combined with a YCrCb signal and an RGB signal (see, for example, Patent Document 1).
  • Patent Document 1 Special Table 2004-529396
  • a color specified by a video signal is expressed by the luminance (luminance level) of multiple primary colors
  • the color specified in the video signal is represented by three variables (for example, color coordinates RGB or XYZ), whereas in a multi-primary color display device, the color is specified by four or more variables. is there.
  • the luminance (luminance level) of the three primary colors in the video signal is 256 gradations, and each pixel has five sub-pixels in the multi-primary color display panel, and each of the five sub-pixels.
  • the maximum possible combination of sub-pixel brightness to represent a color is 256 x 256.
  • data indicating the luminance of each sub-pixel determined in advance for each color specified in the video signal is used as a lookup tape. If it is stored in the screen, a desired display can be performed by referring to the look-up table according to the video signal.
  • storing data indicating the luminance of each sub-pixel for each specific color in this way increases the amount of data in the lookup table, and the lookup table can be created using an inexpensive memory with a small capacity. It cannot be configured easily.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a multi-primary color display device in which a norec-up table is simply configured.
  • the multi-primary color display device of the present invention includes a multi-primary color display panel having pixels including n (n is a natural number of 4 or more) sub-pixels, and the n sub-pixels from the input video signal
  • a multi-primary color display device including a signal conversion unit that generates a multi-primary color signal indicating the luminance of the image signal, wherein the signal conversion unit refers to the lookup table based on the video signal.
  • the luminance of n ⁇ 3 subpixels of the subpixels is obtained, and the remaining 3 of the n subpixels are calculated by performing the calculation using the luminance of the n ⁇ 3 subpixels.
  • the luminance of each sub-pixel is obtained.
  • the look-up table indicates the brightness of the n-3 sub-pixels corresponding to a number of colors less than the number of colors that can be specified by the video signal. I have data.
  • the signal converter includes an interpolator that interpolates luminance of the n-3 sub-pixels using data of the lookup table.
  • n is 4, and the n sub-pixels are red, green, blue and blue. And yellow sub-pixels.
  • the n is 5, and the n sub-pixels include red, green, blue, yellow, and cyan sub-pixels.
  • the n is 6, and the n sub-pixels include red, green, blue, yellow, cyan, and magenta sub-pixels.
  • the remaining three sub-pixels are the red, green, and blue sub-pixels.
  • the multi-primary color display device of the present invention includes a multi-primary color display panel having pixels that perform display using n (n is a natural number of 4 or more) primary colors, and the n video signals from the input video signal.
  • a multi-primary color display device comprising a signal conversion unit that generates a multi-primary color signal indicating the brightness of the primary color, wherein the signal conversion unit refers to the lookup table based on the video signal, and The luminance of n-3 primary colors out of the primary colors is obtained, and the calculation using the brightness of the n-3 primary colors is performed to obtain the remaining three primary colors. Get brightness.
  • the signal conversion apparatus of the present invention is a signal conversion apparatus that generates a multi-primary color signal indicating luminance of primary colors of n (n is a natural number of 4 or more) input video signals.
  • the luminance of n-3 primary colors out of the n primary colors is obtained by referring to a lookup table based on the signal, and the calculation using the luminance of the n-3 primary colors is performed. Get the brightness of the remaining 3 primary colors out of the n primary colors.
  • the signal conversion method of the present invention is a signal conversion method for generating a multi-primary color signal indicating the luminance of n primary colors (n is a natural number of 4 or more) from the input video signal. Obtaining a brightness of n-3 primary colors out of the n primary colors by referring to a lookup table based on the signal, and performing an operation using the brightness of the n-3 primary colors And obtaining the luminance of the remaining three primary colors out of the n primary colors.
  • a program according to the present invention is a program for causing a computer to execute a signal conversion method for generating a multi-primary color signal indicating the luminance of n primary colors (n is a natural number of 4 or more) from the input video signal.
  • the signal conversion method obtains brightness of n-3 primary colors out of the n primary colors by referring to a lookup table based on the video signal. And obtaining the luminance of the remaining three primary colors out of the n primary colors by performing an operation using the luminance of the n ⁇ 3 primary colors.
  • FIG. 1 is a schematic block diagram showing a first embodiment of a multi-primary color display device according to the present invention.
  • FIG. 2 is a schematic diagram showing one pixel of a multi-primary color display panel in the multi-primary color display device of Embodiment 1.
  • FIG. 3 is a schematic block diagram showing a configuration of a signal conversion circuit in the multi-primary color display device of Embodiment 1.
  • FIG. 4 is a schematic block diagram showing a configuration of a signal conversion circuit in a second embodiment of a multi-primary color display device according to the present invention.
  • FIG. 1 shows a multi-primary color display device 100 of the present embodiment.
  • the multi-primary color display device 100 includes a multi-primary color display panel 200 having pixels including n sub-pixels (n is a natural number of 4 or more), and a signal conversion circuit 300 that generates a multi-primary color signal from an image signal.
  • n is a natural number of 4 or more
  • the multi-primary color display device 100 is a liquid crystal display device
  • the multi-primary color display panel 200 is a liquid crystal display panel.
  • FIG. 2 shows one pixel 210 in the multi-primary color display panel 200.
  • the pixel 210 has five sub-pixels, that is, a red sub-pixel (R), a green sub-pixel (G), a blue sub-pixel (B), a yellow sub-pixel (Ye), and Has cyan sub-pixel (C).
  • the five subpixels in the pixel 210 form, for example, five different subpixel regions per pixel region in a color filter layer (not shown) provided in the multi-primary color display panel 200. This is realized by forming color filters of different colors in the pixel area.
  • FIG. 3 shows the configuration of the signal conversion circuit 300.
  • the signal conversion circuit 300 includes a color coordinate conversion circuit 310, a lookup table memory 320, an arithmetic circuit 330, and a correction unit 340.
  • the color coordinate conversion circuit 310 receives a video signal indicating the luminance (luminance level) of the three primary colors represented by the RGB color coordinates, and converts the color coordinates of the luminances of the three primary colors into RGB colors XYZ. Specifically, as shown in Equation 1, the color coordinate conversion circuit 310 performs a 3 ⁇ 3 matrix calculation on Ri, Bi, and Gi shown in the video signal to obtain X, Y, and ⁇ . obtain. This 3-by-3 matrix is determined, for example, by the V.709 standard.
  • the possible values of Ri, Gi, Bi shown in the video signal are 0 to 1, with value 0 corresponding to the minimum gradation of the three primary color display device and value 1 corresponding to the maximum gradation of the three primary color display device is doing.
  • the lookup table memory 320 stores a lookup table! look
  • the up-table has data indicating the brightness of yellow and cyan sub-pixels corresponding to the brightness (luminance levels) Ri, Gi, Bi of the three primary colors.
  • the luminances Ri, Gi, and Bi are obtained by performing inverse ⁇ correction on the gradation values expressed in 256 gradations, and are 256 ⁇ 256 ⁇ 256, which is the number of colors that can be specified by the video signal.
  • Norec tape memory 320 has a 256x256x256 3D matrix data corresponding to the number of colors that can be specified by the video signal. Yes.
  • Look-up table By referring to the look-up table in the memory 320, the brightness Ye, C of the yellow and cyan sub-pixels corresponding to the brightness Ri, Gi, Bi can be obtained.
  • the arithmetic circuit 330 uses the XYZ obtained by the color coordinate conversion circuit 310 and the luminances (luminance levels) Ye ′ and C ′ of the yellow and cyan sub-pixels obtained by the lookup table memory 320 to generate red, Get the luminance (luminance levels) R ', G', B 'of the green and blue sub-pixels.
  • the arithmetic circuit 330 performs an operation for obtaining luminances (luminance levels) R ′, G ′, and B ′ of red, green, and blue sub-pixels according to Equation 4 described later. Equation 4 will be described below with reference to Equation 2 and Equation 3.
  • X, Y, and ⁇ obtained by converting the luminances of the three primary colors Ri, Bi, and Gi are three rows for R, G, B ', Ye', and C ', as shown in Equation 2. It is also expressed by matrix calculation of 5 columns.
  • R ′, G ′, B ′, Ye ′, and C ′ are theoretical values of the luminance (luminance level) of each sub-pixel.
  • X, Y, and ⁇ obtained by converting Ri, Bi, and Gi in this way have a predetermined relationship with R ′, G ′, B ′, Ye ′, and C ′. This is because the color specified by the video signal input to the signal conversion circuit 300 is theoretically equal to the color specified by the multi-primary color signal output from the signal conversion circuit 300.
  • Equation 2 the 3 ⁇ 5 matrix is determined based on the multi-primary color display panel 200.
  • X, Y, and Z are red subpixels of the multi-primary color display panel 200 (see Fig. 1). Determined by. This corresponds to XYZ when only the red sub-pixel is set to the maximum gradation.
  • X, Y, and Z are determined by the green subpixel, and X, Y
  • Z is determined by the blue subpixel
  • X, Y, z are determined by the yellow subpixel
  • X, Y and Z are determined by the cyan sub-pixel.
  • Equation 3 By transforming Equation 2 so that R ', G', B 'and Ye', C 'are expressed separately, X, Y, and Z become R, G, as shown in Equation 3. It is expressed as the sum of a 3-by-3 matrix calculation for,, B, and a 3-by-2 matrix calculation for Ye, C,.
  • Equation 4 Equation 4
  • the calculation circuit 330 performs the calculation shown in Expression 4 based on X, Y, ⁇ from the color coordinate conversion circuit 310 and Ye, C of the lookup table memory 320. As a result, R ', G', and B 'corresponding to Ye, C obtained by referring to the lookup table are obtained.
  • the correction unit 340 is adapted to the multi-primary color display panel 200 (see FIG. 1), Ye, C from the lookup table memory 320, and R, G,. : Correct B. Since R,, G, B, Ye, and C obtained by the lookup table memory 320 and the arithmetic circuit 330 are theoretical values, the actual multi-primary colors are corrected by correcting them in the correction unit 340. A multi-primary color signal suitable for the display panel 200 can be generated. The multi-primary color signal generated in this way is output to the multi-primary color display panel 200.
  • the lookup table memo The luminance of the two sub-pixels is determined using the lookup table stored in the memory 320, and the luminance of the remaining three sub-pixels is determined by the arithmetic circuit 330.
  • the look-up table stored in the look-up table memory 320 has the luminance (that is, Ye ′ and C ′) of two sub-pixels out of the five sub-pixels. ) Only need to be included. Therefore, in the multi-primary color display device 100 of the present embodiment, a lookup table can be simply configured using a low-capacity and inexpensive memory.
  • Ye ′ and C ′ are determined with reference to the lookup table, and then the arithmetic circuit 330 performs an operation using Ye and C ′.
  • R, G, B are obtained, and R, G, B, corresponding to Ye and C, are determined.
  • the desired color is desired.
  • the video signal conforms to the BT.709 standard, but the present invention is not limited to this.
  • the 3 ⁇ 3 matrix is equal to Equation 1, but the values that the three primary colors can take are not specified.
  • the possible values of Ri, Gi, Bi are, for example, uniquely 0.05 to 1.33
  • the brightness Ri, Gi, Bi are 355 gradations from the 65th to 290th gradations. It is also possible to use a 3D look-up table that is uniquely set as an inverse gamma correction of the expressed gradation value and extended to 355 ⁇ 355 ⁇ 355.
  • the look-up table can obtain the luminance of the two sub-pixels (Ye, C) by referring to the gradation value.
  • the multi-primary color display panel 200 represents a color outside the color reproduction range defined in BT.
  • Ri, Gi, and Bi represent the luminances (luminance levels) of the three primary colors! /, but the present invention is not limited to this.
  • Ri, Gi, and Bi are the values before inverse gamma correction processing is performed. It is a so-called gradation value, and the lookup table may be created so as to obtain the luminance with reference to the gradation value.
  • the power of the lookup table having data corresponding to the same number of colors as the number of colors that can be specified by the video signal is not limited to this.
  • the multi-primary color display device of this embodiment has the data corresponding to the number of colors, which is smaller than the number of colors that can be specified by the video signal, in the look-up table.
  • the configuration is the same as that of the multi-primary color display device according to Embodiment 1 described with reference to FIG. 3, and redundant description is omitted to avoid redundancy.
  • FIG. 4 shows a configuration of the signal conversion circuit 300 in the multi-primary color display device of the present embodiment.
  • the signal conversion circuit 300 in the multi-primary color display device includes an interpolation circuit 325 in addition to the color coordinate conversion circuit 310, the look-up table memory 320, the arithmetic circuit 330, and the correction unit 340. It has further.
  • the lookup table data in the lookup table memory 320 corresponds to a number of colors that is smaller than the number of colors that can be specified by the video signal.
  • the luminance Ri, Gi, and Bi of the three primary colors shown in the video signal are each 256 gradations, and the number of colors that can be specified by the video signal is 256 ⁇ 256 ⁇ 256.
  • the lookup table in the lookup table memory 320 corresponds to gradations of 16 gradations such as 0, 16, 32,..., 256 gradations for each of the luminance Ri, Gi, and Bi.
  • X 17 X 17 3D matrix data corresponds to a number of colors that is smaller than the number of colors that can be specified by the video signal.
  • the possible range of the luminance (brightness level) of the three primary colors shown in the video signal is 256 X 256 X 256, while the lookup table in the lookup table memory 320 is 256 X 2 56 X 256.
  • , 17 x 17 x 17 is included, and this makes it possible to further reduce the amount of data in the norec-up table.
  • the interpolation circuit 325 interpolates the luminance Ye ′ and C ′ of the yellow and cyan sub-pixels using the look-up table data.
  • the interpolation circuit 325 performs interpolation by linear approximation, for example. Do. For example, if it corresponds to the luminance values of three primary colors, Ri, Gi, Bi force (18Z256, 35/256, 24/256), the interpolator 325 has a gradation value (16Z256, 32/256, 16 / 256), (16/256, 32/256, 32/256), (16/256, 48/256, 16/256), (1 6/256, 48/256, 32/256), (32 / 256, 32/256, 16/256), (32/256, 32/256, 32/256), (32/256, 48/256, 16/256), (32/256, 48/256, 32 / A linear approximation is performed using the data indicating the brightness of the yellow and cyan sub-pixels in the lookup table corresponding to 256), thereby obtaining
  • the arithmetic circuit 330 uses the XYZ obtained by the color coordinate conversion circuit 310 and the luminances (luminance levels) Ye ′ and C ′ of the yellow and cyan sub-pixels obtained by referring to the lookup table. Get the luminance (luminance levels) R ', G', B 'of the red, green and blue sub-pixels.
  • the specific calculation by the calculation circuit 330 is the same as that described above in the first embodiment.
  • the correction unit 340 also operates in the same manner as described above in the first embodiment, thereby generating a multi-primary color signal.
  • the color corresponding to the data in the lookup table stored in the lookup table memory 320 is more than the number of colors that can be specified by the video signal. Therefore, the amount of data in the look-up table can be further reduced, and the look-up table can be simply configured using a memory having a small capacity.
  • the signal conversion circuit 300 includes the interpolation circuit 325, but the present invention is not limited to this.
  • the signal conversion circuit 300 may not include an interpolation circuit.
  • the lookup table memory 320 selects a plurality of data corresponding to the luminances (luminance levels) Ri, Gi, and Bi of the three primary colors, and these are interpolated by the interpolation circuit 325.
  • the lookup table memory 320 selects one data corresponding to the luminances (luminance levels) Ri, Gi, Bi of the three primary colors from the lookup table,
  • the brightness of yellow and cyan sub-pixels may be set to Ye ', C'.
  • the video signal has an RGB color constellation.
  • the force represented by the mark The present invention is not limited to this.
  • the video signal may be expressed in other color coordinates such as XYZ.
  • the lookup table refers to the luminance (brightness level) or gradation value of the three primary colors represented by the color coordinates RGB. Akira is not limited to this.
  • the lookup table may refer to color coordinates expressed in XYZ, or other three-dimensional color coordinates. Further, the lookup table may be accessible even when the RGB brightness and gradation value are negative as described above.
  • the lookup table has data indicating the luminance of yellow and cyan sub-pixels among red, green, blue, yellow and cyan sub-pixels. Therefore, the power obtained by the luminance of the remaining sub-pixels (that is, red, green, and blue sub-pixels) by the arithmetic circuit 330 is not limited to this.
  • the look-up table has data indicating the luminance of other sub-pixels (for example, blue and yellow sub-pixels), and the luminance of the remaining sub-pixels (for example, red, green and cyan sub-pixels) by the arithmetic circuit 330 You may get
  • one pixel in the multi-primary color display panel 200 has five sub-pixel forces.
  • the present invention is not limited to this. Yes.
  • One pixel power may be formed from a number of sub-pixels.
  • the luminance of one subpixel is obtained by referring to the lookup table stored in the lookup table memory 320, and the luminance of the remaining three subpixels is obtained by the computation of the arithmetic circuit 330.
  • the four sub-pixels are, for example, red, green, blue, and yellow sub-pixels.
  • the luminance of the yellow sub-pixel is obtained by referring to the lookup table, and the luminance of the red, green, and blue sub-pixels is obtained by the arithmetic circuit 330. You may get
  • One pixel may be formed with six sub-pixel forces.
  • the luminance of the three sub-pixels is obtained by referring to the lookup table stored in the lookup table memory 320, and the luminance of the remaining three sub-pixels is obtained by the arithmetic circuit 330.
  • the six sub-pixels are, for example, the red, green, and blue sub-pixels corresponding to the three primary colors of light, and the yellow, cyan, and magenta sub-pixels corresponding to the three primary colors. Refer to the lookup table.
  • the luminance of yellow, cyan and magenta sub-pixels can be obtained, and the luminance of red, green and blue sub-pixels can be obtained by the arithmetic circuit 330.
  • the multi-primary color display panel 200 in the multi-primary color display device 100 is a force that performs color expression using a color filter.
  • the apparatus is not limited to this.
  • the multi-primary color display panel 200 may perform color expression by driving in a field sequential manner. Even when the multi-primary color display panel 200-power S field sequential method is used, the signal conversion circuit 300 may output a multi-primary color signal in the same manner as described above.
  • the multi-primary color display device is a liquid crystal display device, but the present invention is not limited to this.
  • Other display devices such as a plasma display device may be used.
  • the components included in the signal conversion circuit 300 of the multi-primary color display device 100 of Embodiments 1 and 2 described above can be realized by hardware, and part or all of these can be realized by software. You can also.
  • this computer which may be configured using a computer, has a central processing unit (CPU) for executing various programs and a work for executing these programs. It has RAM (random access memory) that functions as an area. Then, a program for realizing the function of each component is executed in the computer, and this computer is operated as each component.
  • CPU central processing unit
  • RAM random access memory
  • the program may be supplied to the recording medium power computer or may be supplied to the computer via a communication network.
  • the recording medium may be configured so as to be separable from the computer or incorporated in the computer. This recording medium can be read via a program reading device connected to the computer as an external storage device, even if the recording program code is mounted on the computer so that the computer can directly read the recorded program code. It may be installed as described above.
  • Recording media include, for example, tapes such as magnetic tapes and cassette tapes: flexible disks Z magnetic disks such as hard disks, magneto-optical disks such as MO and MD, and optical disks such as CD-ROM, DVD, and CD-R Disk: IC card (memory car Use a mask ROM, EPROM (Erasable Programmable Read Only Memory), EEPRuM (Electrically Erasable Programmable Read Only Memory), flash ROM, or other semiconductor memory. Can do.
  • the program When a program is supplied via a communication network, the program may take the form of a carrier wave or a data signal in which the program code is embodied by electronic transmission.
  • the multi-primary color display device can be suitably used for, for example, a monitor of a personal computer, a television, a projector, and a display unit of a mobile phone.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

L'invention concerne un dispositif d'affichage à couleurs d'origine multiples doté d'un panneau d'affichage à couleurs d'origine multiples doté de pixels comprenant n sous-pixels (n est un nombre naturel qui n'est pas inférieur à 4) et une unité de conversion de signaux pour générer des signaux de couleurs d'origine multiples indiquant la luminosité des n sous-pixels d'un signal vidéo d'entrée. L'unité de conversion de signaux obtient la luminosité pour (n - 3) sous-pixels à partir de ceci pour les n sous-pixels par référence à une table à consulter conformément au signal vidéo, réalise une opération arithmétique à l'aide de la luminosité pour les (n - 3) sous-pixels et obtient la luminosité pour les 3 sous-pixels restants sur les n sous-pixels.
PCT/JP2007/058195 2006-07-25 2007-04-13 Dispositif d'affichage à couleurs d'origine multiples WO2008012969A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010055626A1 (fr) * 2008-11-13 2010-05-20 シャープ株式会社 Dispositif d'affichage
WO2011102260A1 (fr) * 2010-02-19 2011-08-25 シャープ株式会社 Dispositif d'affichage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10148885A (ja) * 1996-11-19 1998-06-02 Sony Corp プロジェクタ装置
JP2004038693A (ja) * 2002-07-04 2004-02-05 Canon Inc データ変換方法および画像処理装置
JP2005242300A (ja) * 2004-02-23 2005-09-08 Samsung Electronics Co Ltd 画像表示方法及び表示装置並びにその駆動装置及び方法
JP2005295511A (ja) * 2004-02-26 2005-10-20 Samsung Electronics Co Ltd 色変換方法及び装置並びにそれを利用した多色ディスプレイ装置
JP2005326848A (ja) * 2004-04-30 2005-11-24 Samsung Electronics Co Ltd ３色信号を多色信号に変換する方法、３色信号を多色信号に変換する装置及びコンピュータで読み取り可能な記録媒体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10148885A (ja) * 1996-11-19 1998-06-02 Sony Corp プロジェクタ装置
JP2004038693A (ja) * 2002-07-04 2004-02-05 Canon Inc データ変換方法および画像処理装置
JP2005242300A (ja) * 2004-02-23 2005-09-08 Samsung Electronics Co Ltd 画像表示方法及び表示装置並びにその駆動装置及び方法
JP2005295511A (ja) * 2004-02-26 2005-10-20 Samsung Electronics Co Ltd 色変換方法及び装置並びにそれを利用した多色ディスプレイ装置
JP2005326848A (ja) * 2004-04-30 2005-11-24 Samsung Electronics Co Ltd ３色信号を多色信号に変換する方法、３色信号を多色信号に変換する装置及びコンピュータで読み取り可能な記録媒体

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010055626A1 (fr) * 2008-11-13 2010-05-20 シャープ株式会社 Dispositif d'affichage
CN102216976A (zh) * 2008-11-13 2011-10-12 夏普株式会社 显示装置
US8436875B2 (en) 2008-11-13 2013-05-07 Sharp Kabushiki Kaisha Display device
JP5395092B2 (ja) * 2008-11-13 2014-01-22 シャープ株式会社 表示装置
WO2011102260A1 (fr) * 2010-02-19 2011-08-25 シャープ株式会社 Dispositif d'affichage
CN102770900A (zh) * 2010-02-19 2012-11-07 夏普株式会社 显示装置
US9177512B2 (en) 2010-02-19 2015-11-03 Sharp Kabushiki Kaisha Display device

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