CN108122522A - Image compensation method and relevant control circuit applied to display - Google Patents
Image compensation method and relevant control circuit applied to display Download PDFInfo
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- CN108122522A CN108122522A CN201611085398.9A CN201611085398A CN108122522A CN 108122522 A CN108122522 A CN 108122522A CN 201611085398 A CN201611085398 A CN 201611085398A CN 108122522 A CN108122522 A CN 108122522A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
A kind of control circuit for being applied to a display includes an adjusting parameter generation circuit, an adjustment circuit, a compensation circuit, an image detail compensation circuit and an output circuit.The adjusting parameter generation circuit according to corresponding to the pixel according to a picture frame to backlight illumination determine an adjusting parameter；The adjustment circuit adjusts a pixel value of the pixel according to the adjusting parameter, to generate pixel value after an adjustment；And the compensation circuit according to a compensated curve come pixel value after compensating the adjustment to generate pixel value after a compensation, wherein the compensated curve includes a nonlinear section；The image detail compensation circuit generates a details offset according to an edge factor of the pixel；And the output circuit adjusts after the compensation pixel value to generate an output pixel value of the pixel according to the details offset.
Description
Technical field
Present invention is directed to be applied to the image compensation method of a display and relevant control circuit.
Background technology
In order to increase visual comparative and reach electricity-saving function, for the relatively low region of brightness in image, there is portion
The display divided can reduce corresponding backlight illumination, and display data (i.e. pixel value/grayscale value) is compensated, so that
User can watch identical brightness.However, in some cases, when backlight illumination reduces, some pixels can be caused
Display data after overcompensation be more than highest brightness value so that display data is clamped at highest brightness value, cause shadow
As the loss of details.As an example it is assumed that backlight illumination is reduced to the half of script, then have in script display data pixel value/
The pixel of grayscale value 128~255 can all be compensated to pixel value/grayscale value 255 (with the data instance of 8), cause image
Details distortion, and comparative also reduce.
The content of the invention
Therefore, one of the objects of the present invention is to provide a kind of image compensation method for being applied to a display with it is relevant
Control circuit, it makes use of a compensated curves to slow down the situation that pixel value is clamped at maximum brightness, to solve previous skill
Image detail distortion and the problem of comparative reduction in art.
In one embodiment of the invention, a kind of control circuit for being applied to a display includes adjusting parameter production
Raw circuit, an adjustment circuit, a compensation circuit, an image detail compensation circuit and an output circuit.The adjusting parameter generates
Circuit according to corresponding to the pixel according to a picture frame to a backlight illumination determine an adjusting parameter；The adjustment circuit is used
A pixel value of the pixel is adjusted according to the adjusting parameter, to generate pixel value after an adjustment；And the compensation circuit is used
With according to a compensated curve come pixel value after compensating the adjustment to generate pixel value after a compensation, wherein the compensated curve includes one
Nonlinear section；The image detail compensation circuit is used for generating a details offset according to an edge factor of the pixel；
And the output circuit is used for adjusting after the compensation pixel value according to the details offset to generate an output pixel of the pixel
Value.
In another embodiment of the present invention, a kind of control circuit for being applied to a display includes an adjusting parameter
Generation circuit, an adjustment circuit and a compensation circuit.The adjusting parameter generation circuit is used for the pixel institute according to a picture frame
The backlight illumination corresponded to determines an adjusting parameter；The adjustment circuit is used for adjusting a picture of the pixel according to the adjusting parameter
Plain value is to generate pixel value after an adjustment；And the compensation circuit be used for according to a compensated curve compensate after the adjustment pixel value with
Pixel value after one compensation of generation, the wherein compensated curve include a straight line portion and a conic section part.
In another embodiment of the present invention, a kind of image compensation method for being applied to a display is disclosed, is wrapped
Contain following steps：Receive a picture frame；According to corresponding to a pixel of the picture frame to a backlight illumination determine an adjusting parameter；
A pixel value of the pixel is adjusted according to the adjusting parameter to generate pixel value after an adjustment；The tune is compensated according to a compensated curve
Pixel value is to generate pixel value after a compensation after whole, and wherein the compensated curve includes a nonlinear section；According to the pixel
The one edge factor generates a details offset；And pixel value is adjusted after the compensation to generate the picture according to the details offset
One output pixel value of element.
In another embodiment of the present invention, a kind of image compensation method for being applied to a display is disclosed, is wrapped
Contain following steps：Receive a picture frame；According to corresponding to a pixel of the picture frame to a backlight illumination determine an adjusting parameter；
A pixel value of the pixel is adjusted according to the adjusting parameter to generate pixel value after an adjustment；And it is compensated according to a compensated curve
Pixel value is to generate pixel value after a compensation after the adjustment, and wherein the compensated curve includes a straight line portion and a conic section
Part.
Description of the drawings
Fig. 1 is the schematic diagram according to the control circuit of one embodiment of the invention.
Fig. 2 is the schematic diagram according to the compensated curve of one embodiment of the invention.
Fig. 3 is the schematic diagram of the once differentiation of compensated curve.
Fig. 4 is the schematic diagram according to the control circuit of another embodiment of the present invention.
Fig. 5 generates details offset for image detail compensation circuit, for pixel value after adjusting compensation to generate the pixel
Output pixel value schematic diagram.
Fig. 6 is the schematic diagram according to the image detail compensation circuit of one embodiment of the invention.
Fig. 7 is the schematic diagram that pixel value can not be fully compensated in compensated curve.
Fig. 8 is the flow chart according to a kind of image compensation method for being applied to a display of one embodiment of the invention.
Symbol description
100th, 400 control circuit
110th, 410 light spread counting circuit
120th, 420 adjusting parameter generation circuit
130th, 430 adjustment circuit
140th, 440 compensation circuit
450 image detail compensation circuits
460 output circuits
610 average value calculators
620th, 650 counting circuit
630 subtracters
640 change value calculators
660th, 670 multiplier
800~808 steps
Specific embodiment
It please refers to Fig.1, is according to the schematic diagram of the control circuit 100 of one embodiment of the invention, wherein control circuit 100
System is arranged in a display, for generating panel of the display data to display according to image frame data, and is controlled according to this
Pixel processed is shown.As shown in Figure 1, control circuit 100, which includes a light, spreads counting circuit 110, an adjusting parameter generation circuit
120th, an adjustment circuit 130 and a compensation circuit 140, wherein said elements can also be added firmly by one or more chips with software
The mode of part carrys out implementation.
Control circuit 100 can reduce the bright of backlight module according to current image information (for example, brightness statistics information)
It spends (not illustrating), to save the power consumption of backlight module, and obtains bright after each light-emitting component is adjusted in backlight module
Degree, i.e. backlight illumination information.Light spreads counting circuit 110 and calculates each block in image frame according to backlight illumination information
The received bright summation of the backlight from backlight module, due to light of each block except receiving dead astern light-emitting component
Outside, light caused by the light-emitting component arrived corresponding to adjacent block can be also received, therefore, light spreads 110 system's root of counting circuit
Determine the backlight received by each block according to backlight illumination information and the respective light distribution function of a plurality of light-emitting elements
Bright summation.Then, for a pixel of the image frame received by control circuit 100,120 basis of adjusting parameter generation circuit
Corresponding to the pixel to backlight illumination determine an adjusting parameter, and in this example, it is assumed that being arrived corresponding to the pixel
Backlight illumination be m times of normal brightness, wherein m is the value between 0~1, then the adjusting parameter is (1/m), but this
It is not the limitation as the present invention.Then, adjustment unit 130 adjusts a pixel value of the pixel according to the adjusting parameter,
To generate pixel value after an adjustment, in the present embodiment, adjustment unit 130 is a multiplier, that is, assumes that pixel value is x, then
Pixel value is then (x/m) after the adjustment.Finally, compensation circuit 140 compensates pixel value (x/ after the adjustment according to a compensated curve
M) to generate pixel value F (x) after a compensation, and by this compensate after pixel value be sent to display panel and show, to avoid this
Pixel value (x/m) is more than the highest brightness value after compensation.
It please refers to Fig.2, is according to the schematic diagram of the compensated curve F (x) of one embodiment of the invention, wherein after for convenience
Continuous explanation, the compensated curve system of Fig. 2 are the curve by regular (normalized).Compensated curve F (x) is divided into two portions
Point, when normalized pixel value x is between 0~(α * m), compensated curve F (x) is the straight line that slope is equal to (1/m), also
It is the straight line portion of the compensated curve；And when normalized pixel value x is between (α * m)~1, compensated curve F (x) is one
Conic section, that is, the conic section part of the compensated curve, the wherein value of α can be by engineers according to the spy of display panel
Property is set.Through compensation way shown in Fig. 2, you can pixel value is more than the highest brightness value (example after avoiding the compensation
Such as larger than 255).
It please refers to Fig.3, is the schematic diagram of the once differentiation F ' (x) of compensated curve F (x).Similar to Fig. 2, through one in Fig. 3
The compensated curve system of subdifferential is the curve by regular (normalized).In order to maintain the high-high brightness of entire picture,
Area below F ' (x) curves may be designed as 1, and then derive the F ' (x)=0 as normalized pixel value x=(2- α) * m,
And normalized pixel value x>When (α * m), slope is -1/ [(2-2 α) * m2]。
Although however, embodiment shown in FIG. 1 can to avoid pixel value after the compensation be more than the highest brightness value situation,
But pixel value x is more than the highest brightness value (i.e. normalized pixel value x after script adjusts>M) region, after difference adjustment
The difference of pixel value F (x) can be greatly decreased after compensation corresponding to pixel value x, thus cause image on the side of high-brightness region
Therefore the unobvious that edge becomes, in another embodiment of the present invention, in addition propose image detail compensation circuit and come further
Compensate the edge details of image.
It please refers to Fig.4, is according to the schematic diagram of the control circuit 400 of another embodiment of the present invention, wherein control circuit
400 systems are arranged in a display, for generating panel of the display data to display according to image data, and control picture according to this
Element display.As shown in figure 4, control circuit 400 include a light spread counting circuit 410, an adjusting parameter generation circuit 420,
One adjustment circuit 430, a compensation circuit 440, an image detail compensation circuit 450 and an output circuit 460, wherein above-mentioned member
Part also can by one or more chips in a manner that software is plus hardware come implementation.
Light in control circuit 400 spreads counting circuit 410, adjusting parameter generation circuit 420, adjustment circuit 430, compensation
The operation of circuit 440 and light shown in FIG. 1 spread counting circuit 110, adjusting parameter generation circuit 120, adjustment circuit 130, benefit
It is identical to repay circuit 140, therefore details is not described here any more.And on image detail compensation circuit 450 and output circuit 460
Part, wherein image detail compensation circuit 450 can obtain one side of the pixel according to pixel value (x/m) after the adjustment of a pixel
The edge factor, and generate a details offset according to this, afterwards output circuit 460 can the details offset be further compensate for the benefit
It repays rear pixel value F (x) and is shown to generate the display panel of output pixel value Pout to the rear end of the pixel.
5 (a) figure is refer to, after generating the details offset for image detail compensation circuit 450 for adjustment compensation
Pixel value F (x) generates the schematic diagram of the output pixel value Pout of the pixel.In 5a figures, it is assumed that the pixel value x of the pixel
It can disassemble as the original original change value ACx of average value DCx and one, i.e. pixel value x=DCx+ACx.Original average value DCx
It refers to the pixel and the average value of the pixel value of its front and rear pixel, such as says it is the pixel and its first three pixel and rear three
The average brightness of a pixel, the average brightness that original average value is bigger to represent the pixel and surrounding pixel are higher；Original variation
Value ACx refers to the difference of the corresponding original average value of the pixel, for example, say be the pixel brightness value with its corresponding to
Original average value DCx brightness value difference, the difference that original change value is bigger to represent the pixel and surrounding pixel is bigger, i.e.,
With the bigger edge factor.When the pixel is located at apparent edge (that is, having the larger edge factor) E, even if by
The compensation of compensation circuit, the pixel still have enough difference with its surrounding pixel, and image detail compensation circuit 450 generates at this time
The details offset can be 0 or very low value, so that pixel value F (x) can be directly as the defeated of the pixel after compensation
Go out pixel value Pout, alternatively, original average value DCx and original change value ACx can be according to identical yield value (such as 1.5 times)
It is adjusted respectively；On the other hand, 5 (b) figure is refer to, (that is, there is relatively low edge when the pixel is located at fuzzy edge
The factor) E ' when, once the compensation by compensation circuit, may cause the pixel to become too similar to its surrounding pixel and make shadow
As losing details, the details offset that image detail compensation circuit 450 generates at this time can be larger value, so that original
Average value DCx and original change value ACx can according to different yield value (such as original average value DCx is adjusted to 1.5 times, and
Original change value ACx is adjusted to 2 times) it is adjusted respectively, in this way, i.e. will not be because of using compensated curve F (x) shown in Fig. 2
And lose image detail.It note that the dotted line system of 5a figures and DCx, 1.5DCx and 2DCx in 5b figures are used to refer to positioned at bright
Average value DCxs of the aobvious edge E corresponding to the pixel of fuzzy edge E ', the pixel of actually each position are calculated
Average value DCx can't be all equal.
In implementation, when the pixel has different edge factor e, image detail compensation circuit 450 can be according to difference
Edge factor e generate different details offset.In one embodiment of the invention, 450 institute of image detail compensation circuit
The details offset of generation is (1-e) (1-mF'(DCx))*(ACx/ m), wherein e is between 0~1, and the bigger representative edge of its value
The pixel and the value differences of its surrounding pixel are bigger, when edge e level off to 1 when, details offset levels off to 0.
Fig. 6 is refer to, is according to the schematic diagram of the image detail compensation circuit 450 of one embodiment of the invention, wherein shadow
As details compensation circuit 450 contains an average value calculator 610, a counting circuit 620, a subtracter 630, a change value meter
Calculate device 640, a counting circuit 650 and two multipliers 660,670.It is first in the operation of image detail compensation circuit 450
First, average value calculator 610 can calculate the plain value (x/m) of adjustment after image the average value (DCx/ of pixel after being adjusted with acquirement
M), and average value calculator 610 can be the spatial filter of 7 ranks, 5 ranks or 3 ranks in the present embodiment, be used for target
Pixel and its arround pixel be weighted it is average to be adjusted the average value (DCx/m) of rear pixel.Then, counting circuit 620
(1-m*F ' (DCx)) is calculated using the compensated curve F (x) shown in the 2nd, 3 figures or its once differentiation curve F ' (x), together
When, pixel value (x/m) and the average value (DCx/m) of pixel after adjustment subtract each other to be adjusted after image after subtracter 630 will adjust
The change value (ACx/m) of element.In addition, change value calculator 640 calculates the absolute of the change value of generation pixel according to pixel value x
Value abs (AC), and counting circuit 650 is related to the information (1-e) of the edge factor further according to abs (AC) to calculate.Finally, multiply
(1-e), (ACx/m), (1-m*F ' (DCx)) are multiplied to obtain details offset (1-e) (1-mF' by musical instruments used in a Buddhist or Taoist mass 660,670
(DCx))*(ACx/m).In implementation, average value calculator 610 can be replaced with a low-pass filter, and change value calculator 640 can
It is replaced with a high-pass filter, although low-pass/high-pass filter needs higher cost of manufacture, but as long as threshold value setting is appropriate,
In signal by low-pass filter extract out low frequency part may replace adjustment after pixel average value (DCx/m), by high-pass filter
The high frequency section of extraction then may replace the change value (ACx) of pixel.
Finally, pixel value F (x) and details offset (1-e) (1-mF'(DC after output circuit 460 will adjustx))*(ACx/
M) it is added, to obtain output pixel value Pout, wherein Pout is equal to F (x)+(1-e) (1-mF'(DCx))*(ACx/m)。
It note that the pixel value x of the pixel referred in this case, can be the brightness value or the pixel of the pixel
The brightness value of one of three sub-pixels (i.e. red, green, blue subpixels).And adjustment circuit 430 is calculated with change value
The pixel value x that device 640 is received can be all the brightness value of the pixel, be all three sub-pixels of the pixel (i.e. red, green,
Blue subpixels) one of brightness value or respectively be one.In addition, the pixel value x that adjustment circuit 430 receives is the picture
During the brightness value of element, control circuit 100/400 need to calculate the three of the pixel sons according further to output pixel value Pout
The other output brightness value of pixel, so that display panel is shown.
In the above-described embodiment, by the α values in compensated curve F (x) be set in advance by engineer one both
Definite value, and m values can change with the difference of backlight illumination, therefore, in some cases, be likely to result in compensated curve F
(x) situation that can not be fully compensated.For example, Fig. 7 is refer to, it, can when the data of α and m have some particular kind of relationship
The situation that F (1) is not equal to 1 can occur, in turn result in the case of pixel value x is 255, and backlight illumination reduces, compensation
Pixel value afterwards is less than pixel value 255 instead.For solve the problems, such as this one, compensation circuit 140 shown in FIG. 1 and shown in Fig. 4
Compensation circuit 440 can have the formula of at least two groups conic sections, correspond to the first curve and the second curve, and compensation circuit respectively
140/440 can determine to calculate pixel value after compensation using the formula of which group conic section according to α and m, to ensure
F (1) can be equal to 1 any in the case of.
In the present embodiment, according to the 2nd, 3 figures, can derive can occur when (1/m) is less than (2- α) such as Fig. 7 institutes
The F (1) shown is not equal to 1, and therefore, compensation circuit 140/440 may determine that (1/m) larger or smaller than (2- α) to determine to make
Which organizes the formula of conic section with, so that F (1) can be equal to 1.For example, when normalized pixel value for (α * m)~
1, and (1/m) be more than (2- α) when, compensation circuit 140/440 use the first curveCome
Formula as conic section part；And when normalized pixel value is (α * m)~1, and (1/m) is less than (2- α), compensation
Circuit 140/440 uses the second curveIt is used as the formula of conic section part.
Fig. 8 is refer to, is a kind of image compensation method for being applied to a display according to one embodiment of the invention
Flow chart.With reference to the narration of various embodiments above, the flow of Fig. 8 is described below：
Step 800：Flow starts.
Step 802：Receive a picture frame.
Step 804：For a pixel of the picture frame, according to corresponding to the pixel to backlight illumination determine an adjustment
Parameter.
Step 806：A pixel value of the pixel is adjusted according to the adjusting parameter, to generate pixel value after an adjustment.
Step 808：Pixel value wherein should with generating pixel value after a compensation after compensating the adjustment according to a compensated curve
Compensated curve includes at least a nonlinear section.
The brief summary present invention, image compensation method applied to display and relevant control circuit in the present invention
In, it is that a compensated curve for including conic section make use of to adjust pixel value, is more than most to avoid pixel value after adjustment
The situation of high brightness.In addition, one embodiment of the present of invention also further provides image detail compensation circuit, in addition to compensate
The problem of image causes part high-brightness region image detail to lose because of compensated curve using the present invention.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (14)
1. a kind of control circuit for being applied to a display, includes：
One adjusting parameter generation circuit, for according to a picture frame a pixel corresponding to a backlight illumination determine an adjustment join
Number；
One adjustment circuit, for adjusting a pixel value of the pixel according to the adjusting parameter to generate pixel value after an adjustment；
One compensation circuit, for according to a compensated curve compensate the adjustment after pixel value to generate pixel value after a compensation, wherein
The compensated curve includes a nonlinear section；
One image detail compensation circuit, for generating a details offset according to an edge factor of the pixel；And
One output circuit, for adjusting after the compensation pixel value according to the details offset to generate an output pixel of the pixel
Value.
2. control circuit as described in claim 1, which is characterized in that the pixel value of the pixel corresponds to an average value and one
Change value, pixel value causes this with the output pixel value generated after which adjusts the compensation according to the details offset
Average value has different yield values from the change value.
3. control circuit as described in claim 1, which is characterized in that the size of the details offset and the edge of the pixel
The factor is negatively correlated.
4. control circuit as described in claim 1, which is characterized in that the details offset is (1-e) (1-mF'(DCx))*
(ACx/ m), wherein e is the edge factor of the pixel between 0~1, and m is the adjusting parameter, and F () is bent for the compensation
Line, F ' () are that the once differentiation of the compensated curve and the pixel value of the pixel correspond to an average value and a change value,
And DCx and ACx are respectively the average value and the change value.
5. a kind of control circuit for being applied to a display, includes：
One adjusting parameter generation circuit, for according to a picture frame a pixel corresponding to a backlight illumination determine an adjustment join
Number；
One adjustment circuit, for adjusting a pixel value of the pixel according to the adjusting parameter to generate pixel value after an adjustment；With
And
One compensation circuit, for according to a compensated curve compensate the adjustment after pixel value to generate pixel value after a compensation, wherein
The compensated curve includes a straight line portion and a conic section part.
6. control circuit as claimed in claim 5, which is characterized in that when the pixel value be 0~(α * m) when the compensation circuit according to
Pixel value after the adjustment is compensated according to the straight line portion of the compensated curve, when the pixel value is more than (2- for (α * m)~1 and (1/m)
The compensation circuit is according to the one first curve compensation adjustment after image corresponding to the conic section part of the compensated curve when α)
Element value and when the pixel value is less than (2- α) for (α * m)~1 and (1/m) compensation circuit according to the compensated curve this two
Pixel value after one second curve compensation adjustment corresponding to secondary curved portion, wherein m are the adjusting parameter, and α is a default value.
7. control circuit as claimed in claim 5, which is characterized in that the compensation circuit uses
It is used as the formula of first curve and usesIt is used as the public affairs of second curve
Formula, wherein x are the pixel value of the pixel.
8. a kind of image compensation method for being applied to a display, includes：
Receive a picture frame；
According to corresponding to a pixel of the picture frame to a backlight illumination determine an adjusting parameter；
A pixel value of the pixel is adjusted according to the adjusting parameter to generate pixel value after an adjustment；
Pixel value is to generate pixel value after a compensation after compensating the adjustment according to a compensated curve, and wherein the compensated curve includes one
Nonlinear section；
A details offset is generated according to an edge factor of the pixel；And
Pixel value is adjusted after the compensation according to the details offset to generate an output pixel value of the pixel.
9. image compensation method as claimed in claim 8, which is characterized in that the pixel value corresponds to an average value and a variation
Value, pixel value is included with generating the step of the output pixel value after this adjusts the compensation according to the details offset：
The average value and the change value are adjusted with different yield values.
10. image compensation method as claimed in claim 8, which is characterized in that the size of the details offset and the pixel
The edge factor is negatively correlated.
11. image compensation method as claimed in claim 8, which is characterized in that the details offset is (1-e) (1-mF'
(DCx))*(ACx/ m), wherein e is the edge factor of the pixel between 0~1, and m is the adjusting parameter, and F () is should
Compensated curve, F ' () is the once differentiation of the compensated curve and the pixel value of the pixel corresponds to an average value and a change
Dynamic value, and DCx and ACx are respectively the average value and the change value.
12. a kind of image compensation method for being applied to a display, includes：
Receive a picture frame；
According to corresponding to a pixel of the picture frame to a backlight illumination determine an adjusting parameter；
A pixel value of the pixel is adjusted according to the adjusting parameter to generate pixel value after an adjustment；And
Pixel value is to generate pixel value after a compensation after compensating the adjustment according to a compensated curve, and wherein the compensated curve includes one
Straight line portion and a conic section part.
13. image compensation method as claimed in claim 12, which is characterized in that further include：
The straight line portion when the pixel value is 0~(α * m) according to the compensated curve compensates pixel value, wherein m after the adjustment
For the adjusting parameter, α is a default value；
The conic section part when the pixel value is more than (2- α) for (α * m)~1 and (1/m) according to the compensated curve is right
Pixel value after the one first curve compensation adjustment answered；And
The conic section part when the pixel value is less than (2- α) for (α * m)~1 and (1/m) according to the compensated curve is right
Pixel value after the one second curve compensation adjustment answered.
14. image compensation method as claimed in claim 12, which is characterized in that the corresponding formula of the first curve isAnd the corresponding formula of the second curve isx
For the pixel value of the pixel.
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| CN201611085398.9A CN108122522B (en) | 2016-11-30 | 2016-11-30 | Image compensation method applied to display and related control circuit |
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| CN201611085398.9A CN108122522B (en) | 2016-11-30 | 2016-11-30 | Image compensation method applied to display and related control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109509460A (en) * | 2018-11-23 | 2019-03-22 | 友达光电股份有限公司 | Data processing method applied to liquid crystal display panel |
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| TW200612385A (en) * | 2004-10-08 | 2006-04-16 | Mstar Semiconductor Inc | Image contrast enhancing device and method thereof |
| US20070092139A1 (en) * | 2004-12-02 | 2007-04-26 | Daly Scott J | Methods and Systems for Image Tonescale Adjustment to Compensate for a Reduced Source Light Power Level |
| CN1992842A (en) * | 2005-12-30 | 2007-07-04 | 联发科技股份有限公司 | Luminance compensation apparatus and method |
| US20100002952A1 (en) * | 2008-07-01 | 2010-01-07 | Texas Instruments Incorporated | Method and apparatus for image sharpening |
| US20110074803A1 (en) * | 2009-09-29 | 2011-03-31 | Louis Joseph Kerofsky | Methods and Systems for Ambient-Illumination-Selective Display Backlight Modification and Image Enhancement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509460A (en) * | 2018-11-23 | 2019-03-22 | 友达光电股份有限公司 | Data processing method applied to liquid crystal display panel |
| CN109509460B (en) * | 2018-11-23 | 2021-06-04 | 友达光电股份有限公司 | Data processing method applied to liquid crystal display panel |
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| CN108122522B (en) | 2021-04-27 |
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