CN102483898A - 显示装置 - Google Patents
显示装置 Download PDFInfo
- Publication number
- CN102483898A CN102483898A CN2010800404772A CN201080040477A CN102483898A CN 102483898 A CN102483898 A CN 102483898A CN 2010800404772 A CN2010800404772 A CN 2010800404772A CN 201080040477 A CN201080040477 A CN 201080040477A CN 102483898 A CN102483898 A CN 102483898A
- Authority
- CN
- China
- Prior art keywords
- value
- data
- rgb
- display device
- input
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3216—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0428—Gradation resolution change
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/06—Colour space transformation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Processing Of Color Television Signals (AREA)
- Control Of El Displays (AREA)
- Color Image Communication Systems (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Facsimile Image Signal Circuits (AREA)
- Controls And Circuits For Display Device (AREA)
- Electroluminescent Light Sources (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
本发明的目的是在输入RGB数据不遭受色阶损失的情况下,将输入RGB数据转换为R′G′B′W数据。显示面板12被构造为具有由RGBW(红、绿、蓝、白)子像素组成的单位像素。在RGB→R′G′B′W转换部10中,在W的使用率小于100%并且输入RGB数据的位宽大于转换后的R′G′B′W数据的位宽的条件下进行转换。在RGB→R′G′B′W转换部10中,确定R′G′B′值和W值,以使得通过将各个输入RGB数据与转换后的R′G′B′W数据中各RGB分量之间的差值乘以权重所得到的值的总和的绝对值最小。
Description
技术领域
本发明涉及一种具有由RGBW(红、绿、蓝和白)子像素组成的单像素的显示装置,该显示装置通过将输入的RGB数据转换为R′G′B′W数据来显示输入的RGB数据。
背景技术
图1示出了矩阵式有机EL(OLED)面板的点布局的一个示例,该面板具有由普通的红、绿和蓝(R、G、B)三个子像素(点)组成的单像素,图2示出了除了R、G、B外还使用白(W)的矩阵式EL面板的点布局。在图2中,RGBW以水平方向设置,在图3中RGBW以2x2像素为单位被分组设置。
该RGBW类型旨在通过使用具有高于R、G、B的发光效率的W位来提高面板的亮度并降低其功率。作为实现RGBW型面板的方法,存在一种使用在每个点中发出相应颜色光的有机EL元件的方法,以及一种通过在白色有机EL元件上覆盖红、绿和蓝的滤光片来实现除W之外的其它点的方法。
图4是CIE1931色空间色度图,示出了除使用红、绿和蓝(R、G、B)的正常原色之外还使用白色像素的白(W)的色度的一个示例。这个W的色度并不总是需要匹配显示器的基准白色。
图5示出了将RGB输入信号转换为RGBW像素信号的方法,该RGB输入信号在R=1、G=1和B=1时能够显示显示器的基准白色。
首先,在W点所发出的颜色与显示器的基准白色不匹配的情况下,对输入的RGB信号执行下面的计算,以便对该W点发出的颜色进行归一化(S11)。
公式1
这里,R、G、B是输入信号,Rn、Gn、Bn是已经归一化的红、绿和蓝信号,而a、b、c是已选择的系数,以使得当R=1/a、G=1/b和B=1/c时,它们分别具有与W=1相同的亮度和色度。
作为最基本的S、F2、F3的算术表达式的示例,可以考虑下列表达式:
S=min(Rn,Gn,Bn)...表达式2
F2(S)=-S...表达式3
F3(S)=S ...表达式4
在这种情况下,对于在S11中获得的(Rn、Gn、Bn),在步骤S12中根据表达式2计算S(在已经归一化的RGB分量内的最小值)(S12),并且通过从Rn、Gn、Bn中减去所获得的S来得到Rn′、Gn′、Bn′(S13、S14)。并且,将S直接输出为白色值(Wh)(S15)。
在这种情况下,将被理解的是随着待显示的像素的颜色接近非彩色,被点亮的W点的比例也会增大。相比于仅使用RGB时,随着在被显示的图像中接近非彩色的颜色的比例增大,面板的功率消耗因此会降低。
并且,与将W点发出的颜色归一化类似,当W点发出的颜色与显示器的基准白色不匹配时,对基准白色执行最终归一化(S16)。如下列表达式执行对基准白色的最终归一化。
公式2
一般来说,很少有图像仅由纯色构成,并且几乎没有使用W点的情形,这意味着与仅使用RGB像素时相比,整体功率消耗平均被降低了。
并且,在M被限定为0≤M≤1的情况下,用于F2和F3的下列表达式和W点的使用率将依赖于M的值而变化。
F2(S)=-MS ...表达式6
F3(S)=MS ...表达式7
从功率消耗的角度来看,如果M=1,也就是说如果使用率为100%,是最好的。然而,从视觉分辨率的角度来看,最好将M的值选择为使所有的RGBW最大可能程度地被点亮(参考专利公开1)。
图6是当未进行归一化时的转换方法的示意图。对于输入信号,获得在RGB内的最小值S(S21),并且将所获得的值S乘以系数M以确定白色(Wh)(S22)。输出Wh的同时,从各RGB分量中减去该值Wh(S23)以获得最终转换的R′、G′、B′。
现有技术参考
专利公开
专利文献1:JP No.2006-003475A
发明内容
在具有这些RGBW类型子像素以及其W的使用率被设置为小于100%的显示装置中,在已经输入RGB信号(该RGB信号位宽大于RGBW源驱动器的D/A转换器的输入位宽)的情况下,在将输入信号色阶的损失保持在最小可能的同时进行显示。
本发明涉及一种显示装置,该显示装置具有由RGBW(红、绿、蓝、白)子像素组成的单位像素并且其中W的使用率被设置为小于100%,在该显示装置中输入RGB数据的位宽大于转换后的R′G′B′W数据的位宽,其中R′G′B′值和W值被确定为使得各个输入RGB数据与所述转换后的R′G′B′W数据内各RGB分量之间的差值最小或者使得将这些差值乘以权重所得到的值的总和的绝对值最小。
本发明还涉及一种显示装置,该显示装置具有由RGBW(红、绿、蓝、白)子像素组成的单位像素并且其中W的使用率被设置为小于100%,在该显示装置中输入RGB数据的位宽大于转换后的R′G′B′W数据的位宽,其中R′G′B′值和W值被确定为使得从输入RGB数据和所述转换后的R′G′B′W数据内各RGB分量分别计算的色度中的差值最小。
如果目标W使用率被设定为m/n(其中m和n是互质的正整数,并且m<n),通过将所述输入RGB数据的三种颜色的最小值内取整为提供给面板的位数而获得的值被设定为W0,并且通过在小数点后截断n/2所获得的值被表示为[n/2],则还优选的是从大于或等于W0+[n/2]与小于或等于W0-[n/2]的值的范围内选择W数据。
当所述输入RGB的位宽为t,并且提供给显示面板的R′G′B′W数据的位宽为u时,还优选的是使n为n=2(t-u)。
技术效果
根据本发明,对于其色阶数大于显示面板的色阶数的的输入信号,能够以尽可能小的色阶损失来进行显示。
附图说明
图1是示出对于使用RGB点的有机EL面板的子像素结构示例的图。
图2是示出对于使用RGBW点的有机EL面板的子像素结构示例的图。
图3是示出对于使用RGBW点的有机EL面板的子像素结构示例的图。
图4是表示在CIE1931色空间色度图上的纯色RGBW的颜色位置的图。
图5是示出将RGB输入信号转换为RGBW图像信号的处理示例的图。
图6是示出将RGB输入信号转换为RGBW图像信号的处理的另一示例的图。
图7是示出输入的RGB和转换后的R′G′B′W的状态示例的图。
图8是示出输入的RGB和转换后的R′G′B′W的状态的另一示例的图。
图9是示出输入的RGB和转换后的R′G′B′W的状态的另一示例的图。
图10是示出输入的RGB和转换后的R′G′B′W的状态的另一示例的图。
图11是示出用于执行判断以确定W的结构示例的图。
图12是示出用于执行判断以确定W的结构示例的图。
图13是示出显示装置的结构的图。
具体实施方式
以下将描述本发明的实施方式。
转换内容的描述
在t≥u时,对于各个颜色将输入RGB设定为t位,并且对于各个颜色将R′G′B′W设定为u位。并且,输入RGB的高u位为整数部分以及低(t-u)位为小数部分,转换后的R′G′B′W可被视为整数。如果光量与输入数据成比例,那么每种颜色的理论光量表示为:
Lr1=krR ...表达式8
Lg1=kgG ...表达式9
Lb1=kbB ...表达式10
这里,kr、kg和kb是比例常数。
同样,当W的使用率M是m/n(其中m和n是正整数,并且m≤n)时,转换后的发光量为:
Lr2=krR′+kr(m/n)W 表达式11
Lg2=kgG′+kg(m/n)W 表达式12
Lb2=kbB′+kb(m/n)W 表达式13
如果位宽(bit width)相同,并且色阶(gradation)的最大数量相同,那么对于R′、G′和B′以及W,W的系数为R′、G′和B′的系数的m/n倍,因此将可以理解的是与W的一个色阶对应的发光量为对于R′、G′和B′的该色阶的发光量的m/n倍。
这里,如果W′是整数,以及p是整数,其中0≤p<n,则(m/n)W表示为(m/n)W=W′+p/n的形式,并且表达式11至13可重写为:
Lr2=kr(R′+W′+p/n)...表达式14
Lg2=kg(G′+W′+p/n)...表达式15
Lb2=kb(B′+W′+p/n)...表达式16
因为R′G′B′W的位的数量小于输入的RGB的位的数量,则有可能在转换时出现误差,并且对于每种颜色发光量中的误差ΔLr、ΔLg和ΔLb为:
ΔLr=Lr1-Lr2=kr(R-(R′+W′+p/n))...表达式17
ΔLg=Lg1-Lg2=kg(G-(G′+W′+p/n))...表达式18
ΔLb=Lb1-Lb2=kb(B-(B′+W′+p/n))...表达式19
这里,R′、G′、B′值被选择为使得ΔLr/kr、ΔLg/kg和ΔLb/kb的整数部分为零,并且因此ΔLr/kr、ΔLg/kg和ΔLb/kb成为小于1的值。并且,p与W的值不同,并且对于n存在候选数0、1/n、2/n、...(n-1)。相应地,误差ΔLr、ΔLg和ΔLb也具有各自的n级数,这意味着如果W被选择为使得从这些误差中得到最小值,那么可以将误差最小化。对于n的这些候选数,p/n的值均在从任意W到W+N-1的范围中,并且当以a(a是小于n的正整数)递增和当减少(n-a)时W的值是相同的。
对于实数x,不超过x的最大整数被表示为[x],并且通常使用下列表达式来获得W的值:
W0=[min(R,G,B)]...表达式20
对于上述W0,肯定存在使得在大于或等于W0-[n/2]和小于或等于W0+[n/2]的范围中误差最小的W值,这意味着当W的使用率尽可能地接近m/n时,可以选择W来使误差在那个范围中最小。然而,对于(m/n)W必须满足0≤(m/n)W≤min(R,G,B)。
下面将基于附图来描述本发明的实施方式的结构。
实施方式1
图7是使用传统方法在W的使用率为M=3/4时从每种颜色6位的RGB输入信号中获得每种颜色R′、G′、B′和W的4位的值的示例。
如果输入的RGB是4位的整数部分和2位的小数部分,并且每种颜色为R=9.75、F=11.75、B=7.75,则
(m/n)W0=(m/n)[min(9.75,11.75,7.75)]=(3/4)x[7.75]=(3/4)x7=5.25。
这里,如果使用所获得的(m/n)W0来获取R′、G′、B′,则:
R′=[R-(m/n)W0+0.5]=[9.75-5.25+0.5]=[5.0]=5
G′=[G-(m/n)W0+0.5]=[11.75-5.25+0.5]=[7.0]=7
B′=[B-(m/n)W0+0.5]=[7.75-5.25+0.5]=[3.0]=3
这里,在最后分别加0.5以对该小数向上取整。
如果在这时获得RGB分量r、g、b,则
r=R′+(m/n)W0=5+5.25=10.25
g=G′+(m/n)W0=7+5.25=12.25
b=B′+(m/n)W0=3+5.25=8.25
为对于每种颜色以0.5偏离输入RGB的值。
每次对W0的值增加1或者从W0的值中减去1,每种颜色的值就会增加或减少m/n=3/4=0.75,因此将可以理解的是如果对W0增加2或从W0中减去2,那么误差将会被去除。在这种情况下,如果用W的新值来计算R′、G′、B′,则在W=9的情况下,
R′=[R-(m/n)W+0.5]=[9.75-6.75+0.5]=[3.5]=3
G′=[G-(m/n)W+0.5]=[11.75-6.75+0.5]=[5.5]=5
B′=[B-(m/n)W+0.5]=[7.75-6.75+0.5]=[1.5]=1
并且在W=5的情况下,
R′=[R-(m/n)W+0.5]=[9.75-3.75+0.5]=[6.5]=6
G′=[G-(m/n)W+0.5]=[11.75-3.75+0.5]=[8.5]=8
B′=[B-(m/n)W+0.5]=[7.75-3.75+0.5]=[4.5]=4
对于这两种情形,在输入的RGB与转换后的RGB分量之间的误差为
R-(R′+(m/n)W)=0
G-(G′+(m/n)W)=0
B-(B′+(m/n)W)=0
图8示出了W=9的情况。
RGB的小数部分表示为q(1/2)(t-u),其中q是满足0<q<q(t-u)的整数。相应地,当n等于2(t-u)时,p的值存在于p/n=q(1/2)(t-u),也就是说,其中p=q,并且通过适当地选择W可以使误差为零。
根据该实施方式,上述条件满足(t-u)=2,并且因为小数部分对于所有三种颜色都是相同的,所以可以使得对于所有三种颜色的误差为零。换言之,可以找到能够直接表示输入色阶的W的值。作为一个特殊示例,在输入带有相等RGB值的单色图像的情况下,总是可以进行对应于输入RGB色阶的显示。
实施方式2
与实施方式1类似,从每种颜色的6位的RGB输入信号中获得每种颜色的4位R′G′B′W值,但是W的使用效率M被设定为M=3/5。
图9是利用传统的方法所获得的示例。如果输入的RGB具有被设定为R=9.75、G=11.75和B=7.75的各种颜色,则
(m/n)W0=(m/n)[min(0.75,11.75,7.75)]=(3/5)x[7.75]=(3/5)x7=4.2。
这里,如果使用所获得的(m/n)W0来获取R′、G′、B′,则:
R′=[R-(m/n)W0+0.5]=[9.75-4.20+0.5]=[6.05]=6
G′=[G-(m/n)W0+0.5]=[11.75-4.20+0.5]=[8.50]=8
B′=[B-(m/n)W0+0.5]=[7.75-4.20+0.5]=[4.05]=4
如果在这时获得RGB分量r、g、b,则
r=R′+(m/n)W0=6+4.20=10.20
g=G′+(m/n)W0=8+4.20=12.2
b=B′+(m/n)W0=4+4.20=8.2
这里,如果获得输入的RGB与转换后的RGB分量的值之间的差值,
R-r=9.75-10.20=-0.45
G-g=11.75-12.20=-0.45
B-b=7.75-8.20=-0.45
则通过改变W的值所获得的p/n是0、0.2、0.4、0.6和0.8中的任何一个,并且最接近0.75的是0.8。
如果对W0的值增加1,那么(m/n)W=(m/n)x8=0.6x8=4.8,并且将可以理解的是在已经对W0增加1的情形下接近于W=7并且使误差最小的值是W=8。
如果利用W的这个值来计算R′、G′、B′,则
R′=[R-(m/n)W+0.5]=[9.75-4.80+0.5]=[5.45]=5
G′=[G-(m/n)W+0.5]=[11.75-4.80+0.5]=[7.45]=7
B′=[B-(m/n)W+0.5]=[7.75-4.8+0.5]=[3.45]=3
RGB分量rgb为
R=R′+(m/n)W=5+4.80=9.80
g=G′+(m/n)W=7+4.80=11.80
b=B′+(m/n)W=3+4.80=7.80
并且相对于输入RGB的误差为
R-r=9.75-9.80=-0.05
G-g=11.75-11.80=-0.05
B-b=7.75-7.80=-0.05
图10示出了对于W=8的情况在输入的RGB与转换后的RGB分量之间的关系。
按照上述的实施方式,最终确定的W值的使用率稍偏离目标值m/n,但这是由于R′G′B′W的4位的位宽较小。同样,当n被设定为较大时,对W的使用率的影响也变大。
按照上述的实施方式,输入的RGB的小数部分都是相同的,这意味着W的最佳值对于任何颜色都是相同的。在小数部分对于每种颜色是不同的情形下,优选的是按照例如下面的(1)和(2)来改变选择小数部分的值的方法。
(1)按照这一示例,确定R′G′B′值和W值以使得在各个RGB数据输入与转换后的R′G′B′W数据中的各RGB分量之间的差值的总和的绝对值最小。
作为一个示例,在输入RGB与R′G′B′W输入之间位宽的差值为2位的情况下,将考虑R=9.75、G=11.25和B=7.00的输入。当W的使用率M=3/5时,
(m/n)W0=(m/n)[min(9.75,11.25,7.00)]=(3/5)x[7.00]=(3/5)x7=4.20。
这里,如果利用所获得的(m/n)W0来获取R′、G′、B′,则:
R′=[R-(m/n)W0+0.5]=[9.75-4.20+0.5=[6.05]=6
G′=[G-(m/n)W0+0.5]=[11.25-4.20+0.5=[7.55]=7
B′=[B-(m/n)W0+0.5]=[7.00-4.20+0.5=[3.3]=3
如果此时获取RGB分量r、g、b,则
r=R′+(m/n)W0=6+4.20=10.20
g=G′+(m/n)W0=7+4.20=11.20
b=B′+(m/n)W0=3+4.20=7.2
这里,如果获得输入的RGB与转换后的RGB分量的值之间的差值,则
R-r=9.75-10.20=-0.45
G-g=11.25-11.20=0.05
B-b=7.00-7.20=-0.20
在各个输入的RGB与转换后的RGB分量之间的差值的总和的绝对值为:
|(R-r)+(G-g)+(B-b)|=|(9.75-10.2)+(11.25-11.20)+(7.00-7.20)|=0.6
类似地,如果在W设置为(W0-2)、(W0-1)、(W0+1)和(W0+2)时来获得差值的总和的绝对值,则可分别得到
|(9.75-10.00)+(11.25-11.00)+(7.00-7.00)|=0.00
|(9.75-9.60)+(11.25-11.60)+(7.00-6.60)|=0.20
|(9.75-9.80)+(11.25-10.80)+(7.00-6.80)|=0.62
|(9.75-9.40)+(11.25-11.40)+(7.00-7.40)|=0.20
并且在它们中构成最小值0.00的W的值为(W0-2)=5。
还可以将各个差值乘以权重。例如,亮度分量对可见的色阶特性有较大作用,但是亮度分量的大小对于每种颜色不同。相应地,优选的是将每种颜色的亮度分量乘以适当的权重。如果将对于RGB的每种颜色的权重分别设定为0.3、0.6和0.1,则可分别得到
|0.3(9.75-10.20)+0.6(11.25-11.20)+0.1(7.00-7.20)|=0.125
|0.3(9.75-10.00)+0.6(11.25-11.00)+0.1(7.00-7.20)|=0.075
|0.3(9.75-9.60)+0.6(11.25-11.60)+0.1(7.00-6.60)|=0.125
|0.3(9.75-9.80)+0.6(11.25-10.80)+0.1(7.00-6.80)|=0.275
|0.3(9.75-9.40)+0.6(11.25-11.40)+0.1(7.00-7.40)|=0.025
并且在它们中构成最小值0.025的W的值为(W0+2)=9。
图11是确定部框图。
W需要基于输入RGB的最小值经过多个类别的确定。此时,通过将-[n/2]到+[n/2]的范围中的整数加到值W0中来确定W,该值W0是通过将输入RGB的最小值min(R、G、B)取整为特定位数而获得的(S31)。这里,[n/2]是通过截去小数点后的数而获得的值。并且,通过截断输入RGB数据的三种颜色中的最小值并且取整为供给面板的位数而获得的值被设定为W0=[min(R,G,B)],将其作为W的基本值,但是当取整为供给面板的位数时,同样能够通过将小数点后的数取整或向上取整来实现。
接下来,将(m/n)W加到所获得的R′、G′、B′中,并在此时获得RGB分量中的r、g、b(S32)。接着,基于对应于每个W所获得的r、g、b,计算来自原始RGB的误差的绝对值的总数(S34)。按照这一示例,通过加权的加法来计算误差的总数。然后通过从误差的所获得的绝对值的最小值中来选择W的值(S35)。
(2)按照图11的示例,确定W以使得各个RGB分量的误差的总数最小。按照该示例,确定W以使得在诸如L*u*v*或L*a*b*的颜色坐标系下,色差最小。
根据这两种系统,利用在1976年由CIE推荐的颜色坐标系,在该坐标系内的确定固定距离以使得在任何区域都以几乎能感知的均匀比率存在误差。因此,获得转换前和转换后的L*u*v*或L*a*b+,并且小数部分的值被选择为以使得由下面各表达式所限定的色差为最小。
ΔEuv=((ΔL*)2+(Δu+)2+(Δv*)2)1/2...表达式21
这里,ΔL*,、Δu*和Δv*是转换前与转换后的L*、u*和v*的之间各个差值。
ΔEab=((ΔL*)2+(Δa+)2+(Δb*)2)1/2...表达式22
这里,ΔL*、Δa*和Δb*是转换前与转换后的L*、a*和b*中的各个差值。
并且,为了简明起见,可以仅计算ΔL*并且选择W的值以使得其最小。
图12是确定部的框图,并且在该图中给出了采用例如L*a*b*的色系的描述。在S41和S42中,按照与图11的情况相同的方式来计算r、g、b。所获得的r、g、b然后被转换为L*、a*和b*(S43)。接着,在经过R′G′B′W转换后在S43中从r、g、b中所获得的L*、a*、b*与在S44中通过直接将输入的RGB转换为L*、a*、b*所获得的L*、a*、b*进行比较,并且计算误差的总和(S45)。在这种情况下还可以进行加权计算。然后从这些值中选择最低误差,以确定W的值(S46)。
按照这种方式,根据本实施方式,当从RGB数据转换为R′G′B′W数据时,可以实现最佳转换。
图13示出了该实施方式的显示装置的整体结构。作为显示对象的RGB数据被输入到RGB→R′G′B′W转换部。该RGB→R′G′B′W转换部10如上所述通过基于RGB数据的最小值和W的使用率确定W来计算R′G′B′W数据,使得转换前的RGB数据与作为转换后的R′G′B′W数据内的RGB分量的r、g、b之间的差值较小。所获得的R′G′B′W数据然后被发送到显示面板12,并且通过基于这些数据控制每个像素的发光来进行显示。
Claims (4)
1.一种显示装置,所述显示装置具有由RGBW(红、绿、蓝、白)子像素组成的单位像素,并且其中W使用率被设置为小于100%,在所述显示装置中输入RGB数据的位宽大于转换后的R′G′B′W数据的位宽,其中
R′G′B′值和W值被确定为,使得各个输入RGB数据与所述转换后的R′G′B′W数据内各RGB分量之间的差值最小,或者使得将这些差值乘以权重所得到的值的总和的绝对值最小。
2.一种显示装置,所述显示装置具有由RGBW(红、绿、蓝、白)子像素组成的单位像素,并且其中W使用率被设置为小于100%,在所述显示装置中输入RGB数据的位宽大于转换后的R′G′B′W数据的位宽,其中
R′G′B′值和W值被确定为,使得从输入RGB数据和所述转换后的R′G′B′W数据内各RGB分量分别计算的色差最小。
3.根据权利要求1或权利要求2所述的显示装置,其中
如果W使用率的目标值被设定为m/n(其中m和n是互质的正整数,并且m<n),通过将所述输入RGB数据的三种颜色内的最小值取整为提供给面板的位数而获得的值被设定为W0,并且通过在小数点后截断n/2所获得的值被表示为[n/2],则从大于或等于W0-[n/2]且小于或等于W0+[n/2]的值的范围内选择W数据。
4.根据权利要求3所述的显示装置,其中
当所述输入RGB数据的位宽为t,并且提供给显示面板的R′G′B′W数据的位宽为u时,则n为n=2(t-u)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-215747 | 2009-09-17 | ||
JP2009215747A JP2011064959A (ja) | 2009-09-17 | 2009-09-17 | 表示装置 |
PCT/US2010/048852 WO2011034872A1 (en) | 2009-09-17 | 2010-09-15 | Display device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102483898A true CN102483898A (zh) | 2012-05-30 |
CN102483898B CN102483898B (zh) | 2014-12-03 |
Family
ID=43758982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201080040477.2A Active CN102483898B (zh) | 2009-09-17 | 2010-09-15 | 显示装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9799303B2 (zh) |
EP (1) | EP2478517B1 (zh) |
JP (1) | JP2011064959A (zh) |
KR (1) | KR101720706B1 (zh) |
CN (1) | CN102483898B (zh) |
TW (1) | TWI430228B (zh) |
WO (1) | WO2011034872A1 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103747223A (zh) * | 2014-01-15 | 2014-04-23 | 京东方科技集团股份有限公司 | 色域调整装置、方法及显示系统 |
CN104269129A (zh) * | 2014-09-26 | 2015-01-07 | 京东方科技集团股份有限公司 | 一种图像的显示方法及显示装置 |
WO2015100881A1 (zh) * | 2013-12-31 | 2015-07-09 | 京东方科技集团股份有限公司 | 图像处理装置、图像处理方法、显示装置、计算机程序及计算机可读介质 |
CN106257574A (zh) * | 2015-06-19 | 2016-12-28 | 三星显示有限公司 | 确定驱动电压的装置 |
US10210826B2 (en) | 2017-02-22 | 2019-02-19 | Himax Technologies Limited | Sub-pixel rendering method for delta RGBW panel and delta RGBW panel with sub-pixel rendering function |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120262476A1 (en) * | 2011-04-13 | 2012-10-18 | Himax Technologies Limited | Pixel conversion system and method |
KR102090705B1 (ko) * | 2012-09-07 | 2020-03-19 | 삼성디스플레이 주식회사 | 표시 장치 및 표시 장치의 구동 방법 |
CN103928011B (zh) * | 2014-05-12 | 2016-03-09 | 深圳市华星光电技术有限公司 | 图像的显示方法以及显示系统 |
CN104091578B (zh) * | 2014-06-25 | 2016-03-02 | 京东方科技集团股份有限公司 | 一种rgb信号到rgbw信号的图像转换方法及装置 |
KR102154697B1 (ko) * | 2014-09-19 | 2020-09-11 | 엘지디스플레이 주식회사 | 표시장치의 과구동 회로 |
KR102358301B1 (ko) | 2015-01-06 | 2022-02-04 | 삼성디스플레이 주식회사 | 액정 표시 패널 및 이의 제조방법 |
KR102070322B1 (ko) | 2015-08-28 | 2020-01-28 | 삼성전자주식회사 | 디스플레이 장치 및 그 디스플레이 패널 구동 방법 |
JP7117544B2 (ja) | 2016-06-15 | 2022-08-15 | パナソニックIpマネジメント株式会社 | 多色表示装置、多色表示装置の階調値の設定方法、および多色表示装置の製造方法 |
KR102352613B1 (ko) * | 2017-08-02 | 2022-01-17 | 엘지디스플레이 주식회사 | 표시 장치 및 표시 장치의 구동 방법 |
US11100892B2 (en) | 2019-12-05 | 2021-08-24 | Rockwell Collins, Inc. | Display element, system, and method |
US11302289B2 (en) | 2020-04-24 | 2022-04-12 | Rockwell Collins, Inc. | Display element, system, and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070206013A1 (en) * | 2001-05-09 | 2007-09-06 | Clairvoyante, Inc | Methods and Systems For Sub-Pixel Rendering With Gamma Adjustment |
CN101059936A (zh) * | 2006-04-18 | 2007-10-24 | 统宝光电股份有限公司 | 图像显示系统与其提供驱动电压的方法 |
US20080252797A1 (en) * | 2007-04-13 | 2008-10-16 | Hamer John W | Method for input-signal transformation for rgbw displays with variable w color |
US20090085847A1 (en) * | 2007-09-27 | 2009-04-02 | Takashi Morisue | Transmissive liquid crystal display device |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608053B1 (en) * | 1993-01-11 | 1999-12-01 | Canon Kabushiki Kaisha | Colour display system |
US6453067B1 (en) | 1997-10-20 | 2002-09-17 | Texas Instruments Incorporated | Brightness gain using white segment with hue and gain correction |
US6753854B1 (en) | 1999-04-28 | 2004-06-22 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
JP4789305B2 (ja) * | 1999-04-28 | 2011-10-12 | 株式会社半導体エネルギー研究所 | 表示装置 |
KR100777791B1 (ko) * | 1999-11-12 | 2007-11-22 | 티피오 홍콩 홀딩 리미티드 | 높은 밝기를 지닌 액정 디스플레이 장치 |
US7184066B2 (en) | 2001-05-09 | 2007-02-27 | Clairvoyante, Inc | Methods and systems for sub-pixel rendering with adaptive filtering |
KR100929673B1 (ko) * | 2003-03-25 | 2009-12-03 | 삼성전자주식회사 | 표시 장치의 구동 장치 및 그 구동 방법 |
KR100943273B1 (ko) * | 2003-05-07 | 2010-02-23 | 삼성전자주식회사 | 4-컬러 변환 방법 및 그 장치와 이를 이용한 유기전계발광표시장치 |
JP2006003475A (ja) * | 2004-06-15 | 2006-01-05 | Eastman Kodak Co | Oled表示装置 |
US20050285828A1 (en) | 2004-06-25 | 2005-12-29 | Sanyo Electric Co., Ltd. | Signal processing circuit and method for self-luminous type display |
JP2006267148A (ja) * | 2005-03-22 | 2006-10-05 | Sanyo Electric Co Ltd | 表示装置 |
CN1882103B (zh) | 2005-04-04 | 2010-06-23 | 三星电子株式会社 | 实现改进的色域对映演算的系统及方法 |
KR101152137B1 (ko) | 2005-09-29 | 2012-06-15 | 삼성전자주식회사 | 액정 표시 장치 |
US7710022B2 (en) * | 2006-01-27 | 2010-05-04 | Global Oled Technology Llc | EL device having improved power distribution |
EP1845508B1 (en) * | 2006-04-13 | 2012-04-11 | Chimei InnoLux Corporation | System and method of providing driving voltages to an RGBW display panel |
US7592996B2 (en) * | 2006-06-02 | 2009-09-22 | Samsung Electronics Co., Ltd. | Multiprimary color display with dynamic gamut mapping |
US8233013B2 (en) * | 2006-12-21 | 2012-07-31 | Sharp Kabushiki Kaisha | Transmissive-type liquid crystal display device |
WO2009001579A1 (ja) * | 2007-06-25 | 2008-12-31 | Sharp Kabushiki Kaisha | カラー表示装置の駆動制御回路および駆動制御方法 |
KR101329140B1 (ko) * | 2007-08-27 | 2013-11-14 | 삼성전자주식회사 | Rgbw 영상 신호의 채도 향상 시스템 및 방법 |
TWI377540B (en) * | 2007-11-22 | 2012-11-21 | Hannstar Display Corp | Display device and driving method thereof |
JP4577583B2 (ja) * | 2007-12-04 | 2010-11-10 | ソニー株式会社 | 画像処理装置および画像処理方法、プログラム、並びに、記録媒体 |
-
2009
- 2009-09-17 JP JP2009215747A patent/JP2011064959A/ja active Pending
-
2010
- 2010-09-15 US US13/390,934 patent/US9799303B2/en active Active
- 2010-09-15 TW TW099131195A patent/TWI430228B/zh active
- 2010-09-15 EP EP10817729.6A patent/EP2478517B1/en active Active
- 2010-09-15 KR KR1020127009727A patent/KR101720706B1/ko active IP Right Grant
- 2010-09-15 WO PCT/US2010/048852 patent/WO2011034872A1/en active Application Filing
- 2010-09-15 CN CN201080040477.2A patent/CN102483898B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070206013A1 (en) * | 2001-05-09 | 2007-09-06 | Clairvoyante, Inc | Methods and Systems For Sub-Pixel Rendering With Gamma Adjustment |
CN101059936A (zh) * | 2006-04-18 | 2007-10-24 | 统宝光电股份有限公司 | 图像显示系统与其提供驱动电压的方法 |
US20080252797A1 (en) * | 2007-04-13 | 2008-10-16 | Hamer John W | Method for input-signal transformation for rgbw displays with variable w color |
US20090085847A1 (en) * | 2007-09-27 | 2009-04-02 | Takashi Morisue | Transmissive liquid crystal display device |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015100881A1 (zh) * | 2013-12-31 | 2015-07-09 | 京东方科技集团股份有限公司 | 图像处理装置、图像处理方法、显示装置、计算机程序及计算机可读介质 |
US10008148B2 (en) | 2013-12-31 | 2018-06-26 | Boe Technology Group Co., Ltd. | Image processing apparatus, image processing method, display device, computer program and computer-readable medium |
CN103747223A (zh) * | 2014-01-15 | 2014-04-23 | 京东方科技集团股份有限公司 | 色域调整装置、方法及显示系统 |
CN103747223B (zh) * | 2014-01-15 | 2015-11-25 | 京东方科技集团股份有限公司 | 色域调整装置、方法及显示系统 |
CN104269129A (zh) * | 2014-09-26 | 2015-01-07 | 京东方科技集团股份有限公司 | 一种图像的显示方法及显示装置 |
US10467939B2 (en) | 2014-09-26 | 2019-11-05 | Boe Technology Group Co., Ltd. | Method for displaying image and display device |
CN106257574A (zh) * | 2015-06-19 | 2016-12-28 | 三星显示有限公司 | 确定驱动电压的装置 |
US10210826B2 (en) | 2017-02-22 | 2019-02-19 | Himax Technologies Limited | Sub-pixel rendering method for delta RGBW panel and delta RGBW panel with sub-pixel rendering function |
TWI657425B (zh) * | 2017-02-22 | 2019-04-21 | 奇景光電股份有限公司 | 用於Delta RGBW面板的子像素具像呈現方法以及具有子像素具像呈現功能的Delta RGBW面板 |
Also Published As
Publication number | Publication date |
---|---|
US9799303B2 (en) | 2017-10-24 |
EP2478517A4 (en) | 2013-03-27 |
KR101720706B1 (ko) | 2017-03-28 |
TWI430228B (zh) | 2014-03-11 |
EP2478517B1 (en) | 2016-08-10 |
JP2011064959A (ja) | 2011-03-31 |
TW201124968A (en) | 2011-07-16 |
KR20120064112A (ko) | 2012-06-18 |
WO2011034872A1 (en) | 2011-03-24 |
CN102483898B (zh) | 2014-12-03 |
EP2478517A1 (en) | 2012-07-25 |
US20120268353A1 (en) | 2012-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102483898B (zh) | 显示装置 | |
CN102915721B (zh) | 显示装置及其驱动方法 | |
CN103489400B (zh) | 将rgb数据信号转换成rgbw数据信号的处理器与方法 | |
CN1882103B (zh) | 实现改进的色域对映演算的系统及方法 | |
CN101663702B (zh) | 彩色显示装置的驱动控制电路及驱动控制方法 | |
CN101390153B (zh) | 改进的色域映射和子像素着色系统及方法 | |
US20190213951A1 (en) | White balance adjustment method and system for display screen, and display apparatus | |
CN102347010B (zh) | 液晶显示设备 | |
US10366673B2 (en) | Display device and image processing method thereof | |
WO2005048232A1 (en) | Method for transforming three colour input signals to more colour signals | |
CN101218619A (zh) | 转换用于驱动显示器的信号的方法和设备以及使用其的显示器 | |
CN104952423A (zh) | 一种图像显示方法以及显示系统 | |
JP4071630B2 (ja) | カラー画像表示装置 | |
TWI426484B (zh) | 顯示裝置 | |
US8384731B2 (en) | Color transformation method and corresponding color display method | |
CN105684071A (zh) | 信号生成装置、信号生成程序、信号生成方法及图像显示装置 | |
JP6023148B2 (ja) | 表示装置 | |
CN118571182A (zh) | 基于空间混色与时间混色转换原理的分区调色方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |