CN105472364B - The chrominance signal conversion method and device of LCDs - Google Patents
The chrominance signal conversion method and device of LCDs Download PDFInfo
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- H—ELECTRICITY
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- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The present invention relates to the chrominance signal conversion method and device of a kind of LCDs, wherein, this method includes：Compare the size of the grey decision-making of R signal in the rgb signal of input, G-signal and B signal；In the case that the grey decision-making minimum of B signal in rgb signal and the grey decision-making of R signal are more than the grey decision-making of G-signal, rgb signal is converted into the first RGBY signals and exports the first RGBY signals, wherein, the grey decision-making of Y-signal in first RGBY signals is the grey decision-making of the G-signal in rgb signal, the grey decision-making of G-signal in first RGBY signals is minimum gray value, the grey decision-making of B signal in first RGBY signals is the grey decision-making of the B signal in rgb signal, the grey decision-making of R signal of the grey decision-making of R signal in first RGBY signals in rgb signal, the grey decision-making of Y-signal in first RGBY signals, maximum gray value and predetermined brightness curve gamma value determine.In accordance with the invention it is possible to so that the color of the chrominance signal after conversion is more bright-coloured.
Description
Technical field
The present invention relates to the chrominance signal conversion method and dress of field of liquid crystal display, more particularly to a kind of LCDs
Put.
Background technology
At present in the display device of main flow, LCD (English：Liquid Crystal Display, Chinese：LCD
Plate) and OLED (English：Organic Light-Emitting Diode, Chinese：Organic EL display panel) pixel
Usually is made up of three sub-pixels of RGB (red, green, blueness), however engendered at present RGBY (it is red, green,
Blueness, yellow) panel that forms of four sub-pixels, due to adding Y (yellow) signal, yellow, golden signal obtained compared with
Good reproduction, the colour of skin picture more often occurred in video can also be more nearly the color of real world, while be used as blue complementary color
Yellow it is enhanced after, good castering action can also be played to the expressive force of blueness.
Generally, such as VGA (English：Video Graphics Array, Chinese：Video Graphics Array) interface,
DVI (English：Digital Visual Interface, Chinese：Digital visual interface) etc. signal transmission interface transmission picture
Plain signal is all rgb signal, if rgb signal is directly applied into RGBY displays can cause image fault, it is therefore desirable to dock
The rgb signal for entering RGBY displays is changed.It is not yellow in input color in traditional rgb signal conversion method
In the case of, the color of the rgb signal after conversion may be not bright-coloured enough, and in the case where input color is yellow, after conversion
The color of yellow may be not bright-coloured enough in RGBY signals.
The content of the invention
Technical problem
In view of this, the technical problem to be solved in the present invention is how rgb signal to be changed, after causing conversion
Chrominance signal color it is more bright-coloured.
Solution
In order to solve the above-mentioned technical problem, according to an aspect of the invention, there is provided a kind of color of LCDs
Signal conversion method, including：
Compare the size of the grey decision-making of R signal in the rgb signal of input, G-signal and B signal；
In the case of the grey decision-making minimum of B signal in the rgb signal, R signal in the rgb signal with
The size of the grey decision-making of G-signal；
In the case that the grey decision-making of R signal in the rgb signal is more than the grey decision-making of G-signal, by the rgb signal
It is converted into the first RGBY signals and exports the first RGBY signals,
Wherein, the grey decision-making of the Y-signal in the first RGBY signals is the grey decision-making of the G-signal in the rgb signal,
The grey decision-making of G-signal in the first RGBY signals is minimum gray value,
The grey decision-making of B signal in the first RGBY signals is the grey decision-making of the B signal in the rgb signal,
The grey decision-making of R signal of the grey decision-making of R signal in the first RGBY signals in the rgb signal, institute
Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of the Y-signal in the first RGBY signals are stated to determine.
For above-mentioned chrominance signal conversion method, in a kind of possible implementation, in addition to：
In the case that the grey decision-making of R signal in the rgb signal is less than or equal to the grey decision-making of G-signal, by described in
Rgb signal is converted into the 2nd RGBY signals and exports the 2nd RGBY signals,
Wherein, the grey decision-making of the Y-signal in the 2nd RGBY signals is the grey decision-making of the R signal in the rgb signal,
The grey decision-making of R signal in the 2nd RGBY signals is minimum gray value,
The grey decision-making of B signal in the 2nd RGBY signals is the grey decision-making of the B signal in the rgb signal,
The grey decision-making of G-signal of the grey decision-making of G-signal in the 2nd RGBY signals in the rgb signal, institute
Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of the Y-signal in the 2nd RGBY signals are stated to determine.
For above-mentioned chrominance signal conversion method, in a kind of possible implementation, the R letters in the rgb signal
Number grey decision-making be more than G-signal grey decision-making in the case of, the R in the first RGBY signals is calculated according to equation below 1
The grey decision-making of signal,
Formula 1
Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, R1Believe for the RGB
The grey decision-making of R signal in number, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is predetermined brightness curve
Gamma value.
For above-mentioned chrominance signal conversion method, in a kind of possible implementation, the R letters in the rgb signal
Number grey decision-making be less than or equal to G-signal grey decision-making in the case of, the 2nd RGBY signals are calculated according to equation below 2
In G-signal grey decision-making,
Formula 2
Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, G1Believe for the RGB
The grey decision-making of G-signal in number, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is predetermined brightness curve
Gamma value.
For above-mentioned chrominance signal conversion method, in a kind of possible implementation, methods described also includes：
In the case that the grey decision-making of B signal in the rgb signal is not minimum, the rgb signal is converted into
Three RGBY signals simultaneously export the 3rd RGBY signals,
Wherein, the rgb signal is converted into the 3rd RGBY signals and exports the 3rd RGBY signals, including：
Relative saturation degree to the rgb signal is lifted；
The length of line segment OD in the relative saturation degree and RGB triangles after the lifting of the rgb signal, to obtain
Corresponding point D2 in the RGB triangles is taken, the RGB triangles are used for the gamut range for representing the LCDs；With
And
The 3rd RGBY signals are exported according to D2 chromaticity coordinate, wherein the Y-signal in the 3rd RGBY signals
Grey decision-making be minimum gray value,
Wherein, in the RGB triangles, for O points by being determined with reference to white point coordinates, D1 points are the rgb signal described
Corresponding point in RGB triangles, D points are ray OD1 and the RGB triangles intersection point.
For above-mentioned chrominance signal conversion method, in a kind of possible implementation, according to equation below 3 to obtain
The 3rd RGBY signals corresponding point D2 in the RGB triangles is stated,
OD2=OD*S1 formulas 3
Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
In order to solve the above-mentioned technical problem, according to another aspect of the present invention, there is provided a kind of color of LCDs
Chromacoder, including：
Comparing unit, the size of the grey decision-making of the R signal in rgb signal, G-signal and B signal for comparing input；With
And
Output unit is changed, is connected with the comparing unit, for being the RGB in the comparative result of the comparing unit
In the case that the grey decision-making minimum of B signal in signal and the grey decision-making of R signal are more than the grey decision-making of G-signal, by the RGB
Signal is converted into the first RGBY signals and exports the first RGBY signals,
Wherein, the grey decision-making of the Y-signal in the first RGBY signals is the grey decision-making of the G-signal in the rgb signal,
The grey decision-making of G-signal in the first RGBY signals is minimum gray value,
The grey decision-making of B signal in the first RGBY signals is the grey decision-making of the B signal in the rgb signal,
The grey decision-making of R signal of the grey decision-making of R signal in the first RGBY signals in the rgb signal, institute
Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of the Y-signal in the first RGBY signals are stated to determine.
For above-mentioned chrominance signal conversion equipment, in a kind of possible implementation, the conversion output unit is also used
The grey decision-making minimum of B signal and the grey decision-making of R signal in being the rgb signal in the comparative result of the comparing unit
In the case of grey decision-making less than or equal to G-signal, the rgb signal is converted into the 2nd RGBY signals and exports described second
RGBY signals,
Wherein, the grey decision-making of the Y-signal in the 2nd RGBY signals is the grey decision-making of the R signal in the rgb signal,
The grey decision-making of R signal in the 2nd RGBY signals is minimum gray value,
The grey decision-making of B signal in the 2nd RGBY signals is the grey decision-making of the B signal in the rgb signal,
The grey decision-making of G-signal of the grey decision-making of G-signal in the 2nd RGBY signals in the rgb signal, institute
Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of the Y-signal in the 2nd RGBY signals are stated to determine.
For above-mentioned chrominance signal conversion equipment, in a kind of possible implementation, the R letters in the rgb signal
Number grey decision-making be more than the grey decision-making of G-signal in the case of, the conversion output unit calculates described the according to equation below 1
The grey decision-making of R signal in one RGBY signals,
Formula 1
Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, R1Believe for the RGB
The grey decision-making of R signal in number, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is predetermined brightness curve
Gamma value.
For above-mentioned chrominance signal conversion equipment, in a kind of possible implementation, the R letters in the rgb signal
Number grey decision-making be less than or equal to G-signal grey decision-making in the case of, it is described conversion output unit calculated according to equation below 2
The grey decision-making of G-signal in the 2nd RGBY signals,
Formula 2
Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, G1Believe for the RGB
The grey decision-making of G-signal in number, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is predetermined brightness curve
Gamma value.
For above-mentioned chrominance signal conversion equipment, in a kind of possible implementation, the conversion output unit is also used
In the case that the grey decision-making of the B signal in being the rgb signal in the comparative result of the comparing unit is not minimum, by institute
Rgb signal is stated to be converted into the 3rd RGBY signals and export the 3rd RGBY signals,
Wherein, the rgb signal is converted into the 3rd RGBY signals and exports the 3rd RGBY signals, including：
Relative saturation degree to the rgb signal is lifted；
The length of line segment OD in the relative saturation degree and RGB triangles after the lifting of the rgb signal, to obtain
Corresponding point D2 in the RGB triangles is taken, the RGB triangles are used for the gamut range for representing the LCDs；With
And
The 3rd RGBY signals are exported according to D2 chromaticity coordinate, wherein the Y-signal in the 3rd RGBY signals
Grey decision-making be minimum gray value,
Wherein, in the RGB triangles, for O points by being determined with reference to white point coordinates, D1 points are the rgb signal described
Corresponding point in RGB triangles, D points are ray OD1 and the RGB triangles intersection point.
For above-mentioned chrominance signal conversion equipment, in a kind of possible implementation, the conversion output unit according to
Equation below 3 obtains the 3rd RGBY signals corresponding point D2 in the RGB triangles,
OD2=OD*S1 formulas 3
Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
Beneficial effect
The chrominance signal conversion method and device of LCDs according to embodiments of the present invention, can be by original RGB
Signal is converted into RGBY signals.In the case where the color inputted is yellow, can export makes the color of yellow more bright-coloured
RGBY signals, in the case where the color inputted is not yellow, can export makes the color of other colors more bright-coloured
Rgb signal.So, chrominance signal conversion method according to embodiments of the present invention and device, the color letter after conversion is enabled to
Number color it is more bright-coloured.
According to below with reference to the accompanying drawings becoming to detailed description of illustrative embodiments, further feature of the invention and aspect
It is clear.
Brief description of the drawings
Comprising in the description and the accompanying drawing of a part for constitution instruction and specification together illustrate the present invention's
Exemplary embodiment, feature and aspect, and for explaining the principle of the present invention.
Fig. 1 shows the flow chart of the chrominance signal conversion method of LCDs according to an embodiment of the invention；
Fig. 2 shows the flow chart of the chrominance signal conversion method of LCDs according to another embodiment of the present invention；
Fig. 3 shows to determine the color of new rgb signal by the chromaticity coordinate point of original RGB-signal according to one embodiment of the invention
Spend the schematic diagram of coordinate points；
Fig. 4 shows to input the specific example of chrominance signal conversion method when color is not yellow in the embodiment of the present invention；
Fig. 5 is shown as being lifted the schematic diagram of the SIN function of the function of the relative saturation degree of rgb signal；
Fig. 6 shows the structured flowchart of the chrominance signal conversion equipment of LCDs according to an embodiment of the invention.
Embodiment
Describe various exemplary embodiments, feature and the aspect of the present invention in detail below with reference to accompanying drawing.It is identical in accompanying drawing
Reference represent the same or analogous element of function.Although the various aspects of embodiment are shown in the drawings, remove
Non-specifically point out, it is not necessary to accompanying drawing drawn to scale.
Special word " exemplary " is meant " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in embodiment below.
It will be appreciated by those skilled in the art that without some details, the present invention can equally be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight the purport of the present invention.
Embodiment 1
Fig. 1 shows the flow chart of the chrominance signal conversion method of LCDs according to an embodiment of the invention.Such as Fig. 1
Shown, the chrominance signal conversion method mainly may comprise steps of S100~S130.
Step S100, the size of the grey decision-making of R signal in the rgb signal of input, G-signal and B signal is compared.
Specifically, the original rgb signal transmitted in USB interface, DVI interface etc. is inputted to this hair first
Bright chrominance signal conversion equipment, then chrominance signal conversion equipment compare R signal, the G-signal in inputted rgb signal again
With the size of the grey decision-making of B signal.Wherein, in a kind of possible implementation, R signal, G-signal and B letters in rgb signal
Number minimum gray value be 0, maximum gray value be 255.In other words, the grey decision-making of R signal, G-signal and B signal 0~
In the range of 255.
Step S110, in the case of the grey decision-making minimum of the B signal in rgb signal, the R signal in rgb signal is compared
With the size of the grey decision-making of G-signal；
Step S120, in the case that the grey decision-making of the R signal in rgb signal is more than the grey decision-making of G-signal, RGB is believed
Number it is converted into the first RGBY signals and exports the first RGBY signals.
Wherein, the grey decision-making of the Y-signal in the first RGBY signals is the grey decision-making of the G-signal in the rgb signal,
The grey decision-making of G-signal in the first RGBY signals is minimum gray value, the GTG of the B signal in the first RGBY signals
It is worth for the grey decision-making of the B signal in the rgb signal, the grey decision-making of the R signal in the first RGBY signals is according to the RGB
The grey decision-making of R signal in signal, the grey decision-making of Y-signal in the first RGBY signals, maximum gray value and predetermined
Brightness curve gamma value determines.
For example, in the rgb signal inputted, R signal, G-signal, the grey decision-making of B signal are respectively 150,100,
50, then in above-mentioned steps S100, the grey decision-making of the grey decision-making for the B signal being judged as in rgb signal is minimum.Then, above-mentioned
In step S110, it is judged as that the grey decision-making of R signal is more than G-signal.At this moment, in the step s 120, the rgb signal inputted is turned
Change the first RGBY signals into and export the first RGBY signals.Wherein, in the RGBY signals, the grey decision-making of Y-signal is defeated
The grey decision-making of G-signal in the rgb signal entered, it is 100, the grey decision-making of G-signal is minimum gray value, is 0, B signal
Grey decision-making keeps constant, is still 50, and the grey decision-making of R signal can be according to the GTG of the R signal in the rgb signal inputted
Value, grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in the first RGBY signals determine.
In a kind of possible implementation, predetermined brightness curve gamma value is 2.2.
So, the original RGB-signal of input is converted into by above-mentioned steps S120, chrominance signal conversion equipment can
RGBY signals are simultaneously exported to RGBY display screens, with show with change after the corresponding color of signal.
By the above-mentioned chrominance signal conversion method of the embodiment of the present invention, original rgb signal can be converted into RGBY
Signal.Also, by above-mentioned chrominance signal conversion method, R signal can preferably be embodied in the RGBY signals changed out,
And the color of yellow is enhanced, so that the color of the RGBY signals of output is more bright-coloured.
In a kind of possible implementation, the chrominance signal conversion method of the embodiment of the present invention can also include step
S130。
Step S130, will in the case that the grey decision-making of the R signal in rgb signal is less than or equal to the grey decision-making of G-signal
Rgb signal is converted into the 2nd RGBY signals and exports the 2nd RGBY.
Wherein, the grey decision-making of the Y-signal in the 2nd RGBY signals is the grey decision-making of the R signal in rgb signal, and this second
The grey decision-making of R signal in RGBY signals is minimum gray value, and the grey decision-making of the B signal in the 2nd RGBY signals is RGB letters
The grey decision-making of B signal in number, the GTG of the G-signal of the grey decision-making of the G-signal in the 2nd RGBY signals in rgb signal
Value, grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in the 2nd RGBY signals determine.
For example, in the rgb signal inputted, R signal, G-signal, the grey decision-making of B signal are respectively 100,150,
50, then in above-mentioned steps S100, the grey decision-making of the grey decision-making for the B signal being judged as in rgb signal is minimum.Then, above-mentioned
In step S110, it is judged as that the grey decision-making of R signal is less than G-signal.At this moment, in step s 130, the rgb signal inputted is turned
Change the 2nd RGBY signals into.Wherein, in the 2nd RGBY signals, the grey decision-making of Y-signal is the R in the rgb signal that is inputted
The grey decision-making of signal, it is 100, the grey decision-making of R signal is minimum gray value, is 0, and the grey decision-making of B signal keeps constant, i.e.,
Still it is 50, the grey decision-making of G-signal can be according in the grey decision-making of the G-signal in the rgb signal inputted, the 2nd RGBY signals
Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal determine.In a kind of possible implementation
In, the predetermined brightness curve gamma value is identical with brightness curve gamma value predetermined in above-mentioned embodiment, is also 2.2.
So, the original RGB-signal of input is converted into by above-mentioned steps S130, chrominance signal conversion equipment can
RGBY signals are simultaneously exported to RGBY display screens, with show with change after the corresponding color of signal.
By the chrominance signal conversion method in above-mentioned embodiment, original rgb signal can be converted into RGBY letters
Number.Also, by above-mentioned chrominance signal conversion method, G-signal can preferably be embodied in the RGBY signals changed out, and
And the color of yellow is enhanced, so that the color of the RGBY signals of output is more bright-coloured.
By the above-mentioned chrominance signal conversion method of the embodiment of the present invention, in the rgb signal inputted, in B signal
In the case of grey decision-making minimum, it can be determined that the color to be inputted is yellow.In this case, then compare in rgb signal
R signal and G-signal grey decision-making size, then using the step S120 or S130 in above-mentioned chrominance signal conversion method come
Preferably embody R signal or G-signal.If it is determined that the grey decision-making of R signal is more than the grey decision-making of G-signal, then pass through above-mentioned step
Rapid S120 preferably embodies R signal；Otherwise, G-signal is preferably embodied by above-mentioned steps S130.Believed by above-mentioned color
Number conversion method, can be enhanced the color of yellow, so that the color of RGBY signals is more bright-coloured.
Embodiment 2
The difference of the present embodiment and above-described embodiment 1 essentially consists in, in above-mentioned steps S120, in the RGB letters inputted
In the case that the grey decision-making of R signal in number is more than the grey decision-making of G-signal, first can be calculated with specific reference to equation below 1
The grey decision-making of R signal in RGBY signals,
Formula 1
Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, is, for example, 255, R1For institute
The grey decision-making of R signal in the rgb signal of input, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is predetermined bright
Write music line gamma value, such as γ=2.2.
By the above-mentioned chrominance signal conversion method of the embodiment of the present invention, original rgb signal can be converted into RGBY
Signal.Also, by above-mentioned chrominance signal conversion method, the color of R signal is enhanced in the RGBY signals changed out, that is, is removed
The color of other colors beyond yellow is enhanced, so that whole colors are more bright-coloured, balanced.
In a kind of possible implementation, in above-mentioned steps S140, R signal in the rgb signal inputted
In the case that grey decision-making is less than or equal to the grey decision-making of G-signal, the 2nd RGBY signals can be calculated with specific reference to equation below 2
In G-signal grey decision-making,
Formula 2
Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, is, for example, 255, G1For institute
The grey decision-making of G-signal in the rgb signal of input, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is predetermined bright
Write music line gamma value, be, for example, γ=2.2.
By the chrominance signal conversion method in above-mentioned embodiment, original rgb signal can be converted into RGBY letters
Number.Further, it is possible to preferably embody R signal or G-signal, and it is enhanced the color of yellow, so that the color of RGBY signals
It is color more bright-coloured.
Embodiment 3
Fig. 2 shows the flow chart of the chrominance signal conversion method of LCDs according to another embodiment of the present invention.Fig. 2
The middle label step identical with Fig. 1 has identical function, for simplicity, omits the detailed description to these steps.
As shown in Fig. 2 the main region of the chrominance signal conversion method and chrominance signal conversion method shown in Fig. 1 shown in Fig. 2
It is not, if in the case that the B signal in the rgb signal inputted is not minimum, the signal that may determine that to be inputted
Color be not yellow, then need not start Y pixels, it is minimum gray value that can now make Y-signal, and according to following step
S200 (including step S2010~S2030) carries out color enhancement.
In other words, in the chrominance signal conversion method of the embodiment of the present invention, except the step in above-described embodiment
Beyond S100~S130, it can also mainly comprise the following steps S200 (including step S2010~S2030).
Step S200, in the case that the grey decision-making of the B signal in the rgb signal inputted is not minimum, will be inputted
Rgb signal be converted into the 3rd RGBY signals and export the 3rd RGBY signals.
Wherein, above-mentioned steps S200 mainly may comprise steps of：
Step S2010, the relative saturation degree of the rgb signal to being inputted is lifted；
Step S2020, the line in the relative saturation degree and RGB triangles after the lifting of the rgb signal inputted
Section OD length, to obtain corresponding point D2 in the RGB triangles, wherein, as shown in figure 3, the RGB triangles are used to represent
LCD gamut range, wherein, in RGB triangles, for O points by determining with reference to white point coordinates, D1 points are the rgb signal that is inputted
The corresponding point in RGB triangles, and OD1 is connected, and prolong OD1 directions and extend line segment OD1 to form ray OD1, ray OD1
Intersection point with RGB triangles is D；And
Step S2030, the 3rd RGBY signals are exported according to D2 chromaticity coordinate, wherein the Y letters in the 3rd RGBY signals
Number grey decision-making be minimum gray value.
Pass through the above-mentioned chrominance signal conversion method of the present embodiment, the grey decision-making of the B signal in the rgb signal inputted
It is not in the case that color that is minimum, being inputted is not yellow, to determine to believe with the RGB inputted first in RGB triangles
Number corresponding chroma point D1, and the relative saturation degree of inputted rgb signal is lifted, then according to the relative saturation after lifting
Degree and line segment OD length obtain new chroma point D2.So, new chroma point D2 and original colorimetric point D1 tone H phases
Together, simply new chroma point D2 has been lifted relative to original colorimetric point D1 relative saturation degree.Then, according to new chroma point
D2 finds out some RGB combinations so that their chromaticity coordinate is D2 points in RGB triangles.Finally, it is closest according to brightness
The principle of the brightness of original RGB-signal, determine the RGBY signals of final output.
By above-mentioned chrominance signal conversion method, enable in the case where the color inputted is not yellow, make complete
Portion's color is more bright-coloured, balanced.
In a kind of possible implementation, in above-mentioned steps S2020, can be obtained according to equation below 3 described in
3rd RGBY signals corresponding point D2 in the RGB triangles,
OD2=OD*S1 formulas 3
Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
Fig. 4 shows the specific example of chrominance signal conversion method when input color is not yellow in the embodiment of the present invention,
As shown in figure 4, the chrominance signal conversion method mainly may comprise steps of.
(1) XYZ of LCD rgb signal is measured respectively using color analysis instrument CA310 or Other Instruments, and according to
The linear superposition theorem of light can calculate the colourity (x, y) and the brightness Y (steps in such as Fig. 4 of any rgb signal inputted
S300、S310).Specifically, according to the linear superposition theorem of light, by formula：X=Xr+Xg+Xb, Y=Yr+Yg+Yb, Z=Zr+
Zg+Zb is the XYZ that can obtain arbitrary rgb signal.Then, according to colorimetry formula x=X/ (X+Y+Z), y=Y/ (X+Y+Z),
Corresponding chromatic value, i.e. chromaticity coordinate can be calculated.So, can calculate LCD show colourity corresponding to whole colors (x,
And brightness Y y).Here, the R signal in rgb signal, G-signal, the grey decision-making scope of B signal can be 0~255, i.e., minimum
Grey decision-making is 0, and maximum gray value is 255.In other words, for 8bit LCD, 255 are shared3Kind RGB combination and color.
(2) according to above-mentioned chroma data, the relative saturation degree S of rgb signal of any input can be calculated (such as Fig. 4 institutes
The step S320 shown).
Specifically, the RGB according to measured by step (1) from minimum gray value to maximum gray value, i.e. 0~255 rank
Chromatic value, the triangle (hereinafter referred to as RGB triangles) of expression LCD as shown in Figure 3 gamut range can be obtained.
According to step (1), the chromatic value of any RGB combination can be calculated, further, it is possible to according to the RGB calculated
The chromatic value of combination, to determine corresponding with chromatic value point in above-mentioned RGB triangles.Using rgb signal to be converted as
Example, can calculate its chromatic value first, it is then determined that the point corresponding with the chromatic value, is illustrated in figure 3 D1.Wherein, such as
It is O with corresponding chroma point when RGB=(255,255,255) in the RGB triangles shown in Fig. 3.OD1 is connected, and by line
Section OD1 prolongs the extension of OD1 directions, obtains ray OD1.Also, the point that ray OD1 intersects with the side of above-mentioned RGB triangles can be with
It is set to D.
Thus, it is possible to the relative saturation degree S=OD1/OD of the rgb signal is calculated, wherein, OD1, OD represent line segment respectively
OD1 and OD length.
(3) saturation degree S is changed (step S330 as shown in Figure 4) using SIN function S1=sin (S*pi/2).
Specifically,, can be with a kind of possible implementation for the relative saturation degree S obtained in step (2)
Appropriate stretching is carried out using SIN function S1=sin (S*pi/2), to lift the relative saturation degree of rgb signal.Because S exists
In the range of (0,1), and sin functions change in (0, pi/2) interior non-linear increasing, and therefore, S1 is increased with S increase.
So, the new relative saturation degree S1 of rgb signal can be obtained, and seamlessly transitting for rgb signal can be ensured, without
Supersaturation.Can be substantially as shown in Figure 5 to the SIN function figure of saturation degree stretching.
Using above-mentioned SIN function, the relative saturation degree of rgb signal can be properly increased.When the saturation of rgb signal in itself
, can be less and less to the degree that it is lifted when degree is higher.Supersaturation and colour band or color lump can thus be avoided the occurrence of
Appearance.
Illustrate that the relative saturation degree to rgb signal is lifted by taking SIN function as an example above.In a kind of possible reality
In existing mode, other functions can also be made to be lifted come the relative saturation degree to rgb signal, made as long as the function disclosure satisfy that
The relative saturation degree lifting of rgb signal, and the function linear incremental variations in the range of (0,1).For example, may be used also
With by the relative saturation degree S of rgb signal be multiplied by it is a certain be more than 1 number.
(4) keep tone H constant, according to new relative saturation degree S1, calculate the chromaticity coordinate D2 of new chroma point (such as
Step S340 shown in Fig. 4).
Specifically, the line segment OD in RGB triangles in the saturation degree S1 and step (2) obtained in step (3)
Length, to determine new chroma point D2 after the lifting of relative saturation degree.For example, it is capable of line segment OD2 length using above-mentioned formula 3
Degree, so that it is determined that chroma point D2 new after going out the lifting of relative saturation degree.As shown in figure 3, new chroma point D2 and original colorimetric point
D1 tone H is identical, and simply saturation degree has change, i.e., new chroma point D2 has relative to original colorimetric point D1 relative saturation degree
Lifted.
(5) according to D2 coordinate and raw measurement data, some RGB combinations are found out, make their chromaticity coordinate in D2 points,
Principle further according to brightness closest to original RGB brightness, determine final output rgb signal Y (wherein, Y grey decision-making for minimum
Grey decision-making) signal (step S350 as shown in Figure 4).
It should be noted that in above-mentioned chrominance signal conversion method, it is illustrated with chroma point D1.People in the art
Member is able to know that, using above-mentioned chrominance signal conversion method, chroma point corresponding to arbitrary rgb signal can be changed,
Lifted with relative saturation degree but the constant rgb signals of tone H.
By chrominance signal conversion method as described above, enable in the case where the color inputted is not yellow,
The color of rgb signal is strengthened, so that the color of the rgb signal of output is more bright-coloured.
It should be noted that in the above-described embodiments, this hair is elaborated as 0~255 using the grey decision-making scope of rgb signal
Bright, those skilled in the art are able to know that, the grey decision-making of rgb signal may range from other scopes.In addition, in above-described embodiment
In, the present invention is elaborated as 2.2 using predetermined brightness curve gamma value, those skilled in the art are able to know that, predetermined brightness
Curve gamma value can be other values.
Embodiment 4
Fig. 6 shows the structured flowchart of the chrominance signal conversion equipment of LCDs according to an embodiment of the invention.Such as
Shown in Fig. 6, chrominance signal conversion equipment 60 can mainly include comparing unit 61 and conversion output unit 62.Wherein, it is relatively more single
Member 61 is mainly used in comparing the size of the grey decision-making of R signal in the rgb signal of input, G-signal and B signal；Conversion output is single
Member 62 is connected with comparing unit 61, the B signal being mainly used in the comparative result of the comparing unit 61 is the rgb signal
Grey decision-making it is minimum and in the case that the grey decision-making of R signal is more than the grey decision-making of G-signal, the rgb signal is converted into the
One RGBY signals simultaneously export the first RGBY signals, wherein, the grey decision-making of the Y-signal in the first RGBY signals is described
The grey decision-making of G-signal in rgb signal, the grey decision-making of the G-signal in the first RGBY signals is minimum gray value, described
The grey decision-making of B signal in one RGBY signals is the grey decision-making of the B signal in the rgb signal, in the first RGBY signals
R signal R signal of the grey decision-making in the rgb signal grey decision-making, the ash of Y-signal in the first RGBY signals
Rank value, maximum gray value and predetermined brightness curve gamma value determine.
In a kind of possible implementation, the conversion output unit 62 is additionally operable to the comparison in the comparing unit 61
As a result it is the GTG that the grey decision-making minimum of the B signal in the rgb signal and the grey decision-making of R signal are less than or equal to G-signal
In the case of value, the rgb signal is converted into the 2nd RGBY signals and exports the 2nd RGBY signals, wherein, described
The grey decision-making of Y-signal in two RGBY signals is the grey decision-making of the R signal in the rgb signal, in the 2nd RGBY signals
The grey decision-making of R signal be minimum gray value, the grey decision-making of the B signal in the 2nd RGBY signals is in the rgb signal
B signal grey decision-making, the ash of the G-signal of the grey decision-making of the G-signal in the 2nd RGBY signals in the rgb signal
Rank value, grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in the 2nd RGBY signals
To determine.
The above-mentioned chrominance signal conversion equipment of the present embodiment can be used for performing the chrominance signal conversion side of above-described embodiment 1
Method, idiographic flow being specifically described referring to above-described embodiment 1 of the chrominance signal conversion method.
In a kind of possible implementation, the grey decision-making of the R signal in the rgb signal is more than the GTG of G-signal
In the case of value, the conversion output unit 62 calculates the ash of the R signal in the first RGBY signals according to equation below 1
Rank is worth,
Formula 1
Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, R1Believe for the RGB
The grey decision-making of R signal in number, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is predetermined brightness curve
Gamma value.
In a kind of possible implementation, the grey decision-making of the R signal in the rgb signal is less than or equal to G-signal
Grey decision-making in the case of, it is described conversion output unit 62 calculated according to equation below 2 in the 2nd RGBY signals G letter
Number grey decision-making,
Formula 2
Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, G1Believe for the RGB
The grey decision-making of G-signal in number, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is predetermined brightness curve
Gamma value.
The above-mentioned chrominance signal conversion equipment of the present embodiment can be used for performing the chrominance signal conversion side of above-described embodiment 2
Method, idiographic flow being specifically described referring to above-described embodiment 2 of the chrominance signal conversion method.
In a kind of possible implementation, the conversion output unit 62 is additionally operable to the comparison in the comparing unit 61
As a result it is that in the case that the grey decision-making of the B signal in the rgb signal is not minimum, the rgb signal is converted into the 3rd
RGBY signals simultaneously export the 3rd RGBY signals, wherein, the rgb signal is converted into described in the 3rd RGBY signals and output
3rd RGBY signals, including：Relative saturation degree to the rgb signal is lifted；After the lifting of the rgb signal
The length of line segment OD in relative saturation degree and RGB triangles, it is described to obtain corresponding point D2 in the RGB triangles
RGB triangles are used for the gamut range for representing the LCDs；And export the described 3rd according to D2 chromaticity coordinate
RGBY signals, wherein the grey decision-making of the Y-signal in the 3rd RGBY signals is minimum gray value, wherein, in the RGB triangles
In shape, for O points by being determined with reference to white point coordinates, D1 points are the rgb signal corresponding point in the RGB triangles, and D points are to penetrate
Line OD1 and the RGB triangles intersection point.
In a kind of possible implementation, the conversion output unit 62 obtains the described 3rd according to equation below 3
RGBY signals corresponding point D2 in the RGB triangles,
OD2=OD*S1 formulas 3
Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
The above-mentioned chrominance signal conversion equipment of the present embodiment can be used for performing the chrominance signal conversion side of above-described embodiment 3
Method, idiographic flow being specifically described referring to above-described embodiment 3 of the chrominance signal conversion method.
The chrominance signal conversion equipment of LCDs according to embodiments of the present invention, original rgb signal can be turned
Change RGBY signals into.In the case where the color inputted is yellow, the RGBY for making the color of yellow more bright-coloured can be exported
Signal, in the case where the color inputted is not yellow, the RGB letters for making the color of other colors more bright-coloured can be exported
Number.So, chrominance signal conversion side device according to embodiments of the present invention, the color of the chrominance signal after conversion is enabled to more
Add bright-coloured.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
- A kind of 1. chrominance signal conversion method of LCDs, it is characterised in that including：Compare the size of the grey decision-making of R signal in the rgb signal of input, G-signal and B signal；In the case of the grey decision-making minimum of B signal in the rgb signal, the R signal in the rgb signal is believed with G Number grey decision-making size；In the case that the grey decision-making of R signal in the rgb signal is more than the grey decision-making of G-signal, the rgb signal is changed Into the first RGBY signals and the first RGBY signals are exported,Wherein, the grey decision-making of the Y-signal in the first RGBY signals is the grey decision-making of the G-signal in the rgb signal,The grey decision-making of G-signal in the first RGBY signals is minimum gray value,The grey decision-making of B signal in the first RGBY signals is the grey decision-making of the B signal in the rgb signal,The grey decision-making of R signal of the grey decision-making of R signal in the first RGBY signals in the rgb signal, described Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in one RGBY signals determines so that first The color of R signal in RGBY signals is enhanced.
- 2. according to the method for claim 1, it is characterised in that also include：In the case that the grey decision-making of R signal in the rgb signal is less than or equal to the grey decision-making of G-signal, the RGB is believed Number it is converted into the 2nd RGBY signals and exports the 2nd RGBY signals,Wherein, the grey decision-making of the Y-signal in the 2nd RGBY signals is the grey decision-making of the R signal in the rgb signal,The grey decision-making of R signal in the 2nd RGBY signals is minimum gray value,The grey decision-making of B signal in the 2nd RGBY signals is the grey decision-making of the B signal in the rgb signal,The grey decision-making of G-signal of the grey decision-making of G-signal in the 2nd RGBY signals in the rgb signal, described Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in two RGBY signals determines.
- 3. according to the method for claim 1, it is characterised in that the grey decision-making of the R signal in the rgb signal is more than G In the case of the grey decision-making of signal, the grey decision-making of the R signal in the first RGBY signals is calculated according to equation below 1,Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, R1For in the rgb signal R signal grey decision-making, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is the predetermined brightness curve Gamma value.
- 4. according to the method for claim 2, it is characterised in that the grey decision-making of the R signal in the rgb signal be less than or In the case of grey decision-making equal to G-signal, the GTG of the G-signal in the 2nd RGBY signals is calculated according to equation below 2 Value,Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, G1For in the rgb signal G-signal grey decision-making, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is the predetermined brightness curve Gamma value.
- 5. according to the method any one of claim 1-4, it is characterised in that methods described also includes：In the case that the grey decision-making of B signal in the rgb signal is not minimum, the rgb signal is converted into the 3rd RGBY signals simultaneously export the 3rd RGBY signals,Wherein, the rgb signal is converted into the 3rd RGBY signals and exports the 3rd RGBY signals, including：Relative saturation degree to the rgb signal is lifted；The length of line segment OD in the relative saturation degree and RGB triangles after the lifting of the rgb signal, to obtain Corresponding point D2 in RGB triangles is stated, the RGB triangles are used for the gamut range for representing the LCDs；AndThe 3rd RGBY signals are exported according to D2 chromaticity coordinate, wherein the ash of the Y-signal in the 3rd RGBY signals Rank value is minimum gray value,Wherein, in the RGB triangles, for O points by being determined with reference to white point coordinates, D1 points are the rgb signal in the RGB tri- Corresponding point in angular, D points are ray OD1 and the RGB triangles intersection point.
- 6. according to the method for claim 5, it is characterised in that the 3rd RGBY signals are obtained according to equation below 3 The corresponding point D2 in the RGB triangles,OD2=OD*S1 formulas 3Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
- A kind of 7. chrominance signal conversion equipment of LCDs, it is characterised in that including：Comparing unit, the size of the grey decision-making of the R signal in rgb signal, G-signal and B signal for comparing input；AndOutput unit is changed, is connected with the comparing unit, for being the rgb signal in the comparative result of the comparing unit In B signal grey decision-making it is minimum and in the case that the grey decision-making of R signal is more than the grey decision-making of G-signal, by the rgb signal It is converted into the first RGBY signals and exports the first RGBY signals,Wherein, the grey decision-making of the Y-signal in the first RGBY signals is the grey decision-making of the G-signal in the rgb signal,The grey decision-making of G-signal in the first RGBY signals is minimum gray value,The grey decision-making of B signal in the first RGBY signals is the grey decision-making of the B signal in the rgb signal,The grey decision-making of R signal of the grey decision-making of R signal in the first RGBY signals in the rgb signal, described Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in one RGBY signals determines so that first The color of R signal in RGBY signals is enhanced.
- 8. device according to claim 7, it is characterised in that the conversion output unit is additionally operable in the comparing unit Comparative result be B signal in the rgb signal grey decision-making it is minimum and the grey decision-making of R signal is less than or equal to G-signal Grey decision-making in the case of, the rgb signal is converted into the 2nd RGBY signals and exports the 2nd RGBY signals,Wherein, the grey decision-making of the Y-signal in the 2nd RGBY signals is the grey decision-making of the R signal in the rgb signal,The grey decision-making of R signal in the 2nd RGBY signals is minimum gray value,The grey decision-making of B signal in the 2nd RGBY signals is the grey decision-making of the B signal in the rgb signal,The grey decision-making of G-signal of the grey decision-making of G-signal in the 2nd RGBY signals in the rgb signal, described Grey decision-making, maximum gray value and the predetermined brightness curve gamma value of Y-signal in two RGBY signals determines.
- 9. device according to claim 7, it is characterised in that the grey decision-making of the R signal in the rgb signal is more than G In the case of the grey decision-making of signal, the conversion output unit calculates the R in the first RGBY signals according to equation below 1 The grey decision-making of signal,Wherein, R2For the grey decision-making of the R signal in the first RGBY signals, N is maximum gray value, R1For in the rgb signal R signal grey decision-making, Y2For the grey decision-making of the Y-signal in the first RGBY signals, γ is predetermined brightness curve gamma Value.
- 10. device according to claim 8, it is characterised in that the grey decision-making of the R signal in the rgb signal is less than Or in the case of the grey decision-making equal to G-signal, the conversion output unit calculates the 2nd RGBY letters according to equation below 2 The grey decision-making of G-signal in number,Wherein, G2For the grey decision-making of the G-signal in the 2nd RGBY signals, N is maximum gray value, G1For in the rgb signal G-signal grey decision-making, Y2For the grey decision-making of the Y-signal in the 2nd RGBY signals, γ is predetermined brightness curve gamma Value.
- 11. according to the device any one of claim 7-10, it is characterised in that the conversion output unit is additionally operable to The comparative result of the comparing unit is in the case that the grey decision-making of the B signal in the rgb signal is not minimum, by described in Rgb signal is converted into the 3rd RGBY signals and exports the 3rd RGBY signals,Wherein, the rgb signal is converted into the 3rd RGBY signals and exports the 3rd RGBY signals, including：Relative saturation degree to the rgb signal is lifted；The length of line segment OD in the relative saturation degree and RGB triangles after the lifting of the rgb signal, to obtain Corresponding point D2 in RGB triangles is stated, the RGB triangles are used for the gamut range for representing the LCDs；AndThe 3rd RGBY signals are exported according to D2 chromaticity coordinate, wherein the ash of the Y-signal in the 3rd RGBY signals Rank value is minimum gray value,Wherein, in the RGB triangles, for O points by being determined with reference to white point coordinates, D1 points are the rgb signal in the RGB tri- Corresponding point in angular, D points are ray OD1 and the RGB triangles intersection point.
- 12. device according to claim 11, it is characterised in that the conversion output unit obtains according to equation below 3 The 3rd RGBY signals corresponding point D2 in the RGB triangles is taken,OD2=OD*S1 formulas 3Wherein, OD2 is line segment OD2 length, and OD is line segment OD length, and S1 is the relative saturation degree after lifting.
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| KR102503770B1 (en) * | 2018-10-29 | 2023-02-27 | 삼성디스플레이 주식회사 | Image data processing apparatus and display device including the same |
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| CN109285515B (en) * | 2018-11-07 | 2020-07-10 | 惠科股份有限公司 | Pixel signal conversion method and device |
| CN109215602B (en) | 2018-11-07 | 2020-07-10 | 惠科股份有限公司 | Pixel signal conversion method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489143A (en) * | 2008-01-14 | 2009-07-22 | 胜华科技股份有限公司 | Image processing method, image data conversion method and apparatus thereof |
| CN103430085A (en) * | 2011-03-18 | 2013-12-04 | 夏普株式会社 | Liquid crystal display device and television receiver |
| CN103428512A (en) * | 2013-07-30 | 2013-12-04 | 京东方科技集团股份有限公司 | Image conversion method and device from RGB (Red Green Blue) signals to RGBY (Red Green Blue Yellow) signals |
| CN104243946A (en) * | 2014-09-26 | 2014-12-24 | 深圳市华星光电技术有限公司 | Image color enhancement method and device for display |
| CN104269129A (en) * | 2014-09-26 | 2015-01-07 | 京东方科技集团股份有限公司 | Display method and device for image |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003302960A (en) * | 2002-04-08 | 2003-10-24 | Sony Corp | Device and method for image display and computer program |
| TWI385638B (en) * | 2007-12-21 | 2013-02-11 | Wintek Corp | Method for processing image, method and device for converting data of image |
| JP4956686B2 (en) * | 2010-10-26 | 2012-06-20 | シャープ株式会社 | Display device |
| CN103928011B (en) * | 2014-05-12 | 2016-03-09 | 深圳市华星光电技术有限公司 | The display packing of image and display system |
| CN104299598B (en) * | 2014-11-04 | 2017-01-25 | 深圳市华星光电技术有限公司 | Three-color data to four-color data conversion system and conversion method |
| CN105554488B (en) * | 2015-12-07 | 2017-10-27 | 深圳市华星光电技术有限公司 | Signal conversion method |
| CN105528982B (en) * | 2015-12-09 | 2019-06-25 | 深圳市华星光电技术有限公司 | Image converter system and method for the rgb signal to RGBY signal |
| CN105472364B (en) * | 2015-12-14 | 2017-12-22 | 合一智能科技（深圳）有限公司 | The chrominance signal conversion method and device of LCDs |
-
2015
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-
2016
- 2016-09-13 WO PCT/CN2016/098789 patent/WO2017101534A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489143A (en) * | 2008-01-14 | 2009-07-22 | 胜华科技股份有限公司 | Image processing method, image data conversion method and apparatus thereof |
| CN103430085A (en) * | 2011-03-18 | 2013-12-04 | 夏普株式会社 | Liquid crystal display device and television receiver |
| CN103428512A (en) * | 2013-07-30 | 2013-12-04 | 京东方科技集团股份有限公司 | Image conversion method and device from RGB (Red Green Blue) signals to RGBY (Red Green Blue Yellow) signals |
| CN104243946A (en) * | 2014-09-26 | 2014-12-24 | 深圳市华星光电技术有限公司 | Image color enhancement method and device for display |
| CN104269129A (en) * | 2014-09-26 | 2015-01-07 | 京东方科技集团股份有限公司 | Display method and device for image |
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