CN107784981A - Applied to the device of display and the image display method of correlation - Google Patents
Applied to the device of display and the image display method of correlation Download PDFInfo
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- CN107784981A CN107784981A CN201610711956.1A CN201610711956A CN107784981A CN 107784981 A CN107784981 A CN 107784981A CN 201610711956 A CN201610711956 A CN 201610711956A CN 107784981 A CN107784981 A CN 107784981A
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- frame
- pixel value
- pixel
- adjustment
- renewal rate
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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
- G09G3/34—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
- 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
Abstract
The present invention relates to a kind of device for being applied to a display, include a receiving circuit, a detection circuit, an image-processing circuit and a reaction time accelerating circuit, the wherein receiving circuit is receiving an input image signal；The detection electric circuit inspection goes out a frame renewal rate of the image data of a frame in the input image signal；The image-processing circuit carries out image processing to produce the target pixel value of multiple pixels of the frame to the image data of the frame；And the reaction time accelerating circuit according to the frame renewal rate to determine pixel value after multiple adjustment of the plurality of pixel, and pixel value after the plurality of adjustment is exported to a display panel；A specific pixel is wherein directed to, under different frame renewal rates, pixel value differs after the adjustment of the caused specific pixel.
Description
Technical field
The invention relates to display, espespecially a kind of reaction time accelerated method applied to liquid crystal display.
Background technology
In current liquid crystal display panel, a kind of generally use reaction time accelerates (response time
Enhancement) method accelerates the reaction time of liquid crystal, with avoid ghost existing as and cause image can be with apparent aobvious
Show.As an example it is assumed that the pixel value (gray value) of pixel needs to change to 200 from 10, then the drive circuit of display may
The pixel value of pixel can first be set as 230, to accelerate the steering of driving liquid crystal using higher voltage difference, switched to again afterwards
200 to allow pixel to be shown as correct pixel value.However, because above-mentioned pixel value 230 is not that pixel really needs
The brightness to be shown, it is therefore possible to can cause the side effect that some images are shown.
In addition, there is the technology that some dynamics change frame renewal frequency (frame rate) at present, its frame renewal frequency can root
Changed according to image data content to make picture smooth, if however, when being reacted under different frame renewal frequencies using identical
Between accelerate intensity, it is likely that above-mentioned image can be caused to show that side effect is more serious.
The content of the invention
Therefore, an object of the present invention is to provide a kind of reaction time accelerated method, and it can be in different frames more
Intensity is accelerated using the different reaction time under new speed, to solve the problems, such as in prior art.
In one embodiment of the invention, a kind of device for being applied to a display includes a receiving circuit, an inspection
Slowdown monitoring circuit, an image-processing circuit and a reaction time accelerating circuit, the wherein receiving circuit are receiving an input image
Signal；The detection electric circuit inspection goes out a frame renewal rate of the image data of a frame in the input image signal；The image processing
Circuit is coupled to the detection circuit, and to carry out image processing to the image data of the frame to produce multiple pixels of the frame
Multiple target pixel values；And the reaction time accelerating circuit is coupled to the detection circuit, and to according to the frame renewal rate
To determine pixel value after multiple adjustment of the plurality of pixel, and pixel value after the plurality of adjustment is exported to a display panel；Its
In be directed to the plurality of pixel in a specific pixel, under different frame renewal rates, produced by the reaction time accelerating circuit
The specific pixel adjustment after pixel value can differ.
In another embodiment of the present invention, a kind of image display method for being applied to a display includes：Connect
Receive an input image signal；Detect a frame renewal rate of the image data of a frame in the input image signal；To the frame
Image data carries out image processing to produce multiple target pixel values of multiple pixels of the frame；And according to the frame renewal rate
To determine pixel value after multiple adjustment of the plurality of pixel, and pixel value after the plurality of adjustment is exported to a display panel；Its
In be directed to the plurality of pixel in a specific pixel, under different frame renewal rates, pixel value after the adjustment of the specific pixel
It can differ.
Brief description of the drawings
For the above objects, features and advantages of the present invention can be become apparent, the tool below in conjunction with accompanying drawing to the present invention
Body embodiment elaborates, wherein：
Fig. 1 is the schematic diagram according to the device of one embodiment of the invention.
Fig. 2 is the operation chart according to the reaction time accelerating circuit of one embodiment of the invention.
Fig. 3 is the operation chart according to the reaction time accelerating circuit of another embodiment of the present invention.
Fig. 4 is the operation chart according to the reaction time accelerating circuit of another embodiment of the present invention.
Fig. 5 is the flow chart according to a kind of image display method for being applied to a display of one embodiment of the invention.
Element numbers are as follows in figure：
100 devices
110 receiving circuits
120 decoders
122 detection circuits
130 image-processing circuits
140 reaction time accelerating circuits
150 storage elements
152_1~152_N inquiry tables
160 output circuits
500~510 steps
Embodiment
Fig. 1 is refer to, it is the schematic diagram according to the device 100 of one embodiment of the invention.As shown in figure 1, device 100 wraps
A receiving circuit 110, a decoder 120, an image-processing circuit 130, a reaction time accelerating circuit 140, one storage are contained
The output circuit 160 of unit 150 and one, wherein decoder 120 contains a detection circuit 122, and storage element 150 stores
Inquiry table (look-up table) 152_1~152_N.In the present embodiment, device 100 is to be applied to a display, such as is set
It is placed in a TV with liquid crystal panel, and to receive and handle an input image signal Din from an external device (ED)
Afterwards, one image output data Dout of generation is shown that wherein the external device (ED) can be to a display panel of the TV
Display card in one audio and video player or a computer.
Device 100 in the present embodiment is that the frame renewal rate for being specifically for use in input image signal Din can dynamically change
Situation, that is, the frame renewal rate of the input image signal Din from the external device (ED) can have difference with presentation content
Change, for example, when the content change of multiple successive frames in input image signal Din is less (for example, leveling off to quiet
Only picture), input image signal Din can have relatively low frame renewal rate；Otherwise multiple companies in input image signal Din
When the content change of continuous frame is very big, input image signal Din can have higher frame renewal rate.In addition, in the present embodiment
Device 100 dynamically can adjust exported pixel value according to input image signal Din frame renewal rate, to show
Show that the liquid crystal arrived corresponding to the pixel in panel there can be the different reaction time to accelerate intensity.Specific details of operation is as follows
It is described.
In the operation of device 100, first, receiving circuit 110 receives input image signal Din, and decoder 120 is to defeated
Enter signal of video signal Din to be decoded to obtain the image data of a frame, and detect the frame renewal speed that circuit 122 detects the frame
Rate.Then, the self-demarking code device 120 of image-processing circuit 130 receives the image data of the frame, and the image data of the frame is put
Greatly/diminution, color, brightness processing after, produce the target pixel values of multiple pixels of the frame.Then, the reaction time accelerates
Circuit 140 detects the frame renewal rate for the frame that circuit 122 is provided according to decoder 120/, with from storage element 150
An ad hoc inquiry table, and the target pixel value of the plurality of pixel according to the frame are selected in multiple queries table 152_1~152_N
And one former frame multiple pixels pixel value, to determine multiple adjustment after images of the plurality of pixel from the ad hoc inquiry table
Element value.Finally, output circuit 160 exports pixel value after multiple adjustment to display panel to be shown.
In this example, it is assumed that input image signal Din frame renewal rate is changed between 30Hz~120Hz,
Then storage element 150 can include 9 inquiry table 152_1~152_9, and wherein inquiry table 152_1 corresponds to frame renewal rate
30Hz~40Hz, inquiry table 152_2 correspond to frame renewal rate 40Hz~50Hz, inquiry table 152_3 corresponds to frame renewal rate
50Hz~60Hz ... is by that analogy.And reaction time accelerating circuit 140 can detect what circuit 122 was provided according to decoder 120/
The frame renewal rate of the frame selects corresponding inquiry table, such as selects inquiry table when the frame renewal rate of the frame is 30Hz
152_1 comes as the ad hoc inquiry table, and selects inquiry table 152_4 to come as the spy when the frame renewal rate of the frame is 60Hz
Determine inquiry table.In addition, in the present embodiment, when the frame renewal rate of the frame is lower, reaction time accelerating circuit 140 is according to this
The reaction time that ad hoc inquiry table is carried out accelerates intensity weaker, that is, after adjustment caused by reaction time accelerating circuit 140
Pixel value can be closer to pixel value (that is, the object pixel to be exported of image-processing circuit 130 that should be actually shown
Value).In another embodiment of the present invention, storage element 150 can not have to comprising multiple queries table, need only correspond to comprising one
The inquiry table of one basic frame renewal rate, for example basic frame renewal rate is 60 foregoing~70Hz, then in storage element 150
Only there is inquiry table 152_4, if the frame renewal rate of the frame is less than 60Hz, reaction time accelerating circuit 140 can be by inquiry table
The reaction time that 152_4 is found accelerates intensity to be multiplied by a gain less than 1, when the frame renewal rate of the frame is lower, then
Yield value is lower, if conversely, when the frame renewal rate of the frame is higher than 60Hz, reaction time accelerating circuit 140 can be by inquiry table
The reaction time that 152_4 is found accelerates intensity to be multiplied by a gain more than 1, when the frame renewal rate of the frame is higher, then
Yield value is higher.
For example, Fig. 2 is refer to, it is the operation according to the reaction time accelerating circuit 140 of one embodiment of the invention
Schematic diagram.In fig. 2, input image signal Din frame renewal rate is 60Hz, for a specific pixel, it is assumed that the specific picture
Pixel value of the element in former frame is " 10 ", and pixel value of the specific pixel in present frame and next frame is " 200 ", then
In order to accelerate the reaction time of liquid crystal, reaction time accelerating circuit 140 can determine an adjustment after image according to inquiry table 152_4
Element value " 230 ", and output circuit 160 by this adjust after pixel value " 230 " be sent to display panel to be shown.Then, exist
During next frame, it is " 200 " that the pixel value for the specific pixel that output circuit 160 is exported, which is replied,.
Oblique line portion shown in Fig. 2 is not the brightness that pixel really needs to show, therefore can be considered as image and show
Side effect reference index, the more big side effect that is then shown to image of its area is bigger.
Then, Fig. 3 is refer to, it is to show according to the operation of the reaction time accelerating circuit 140 of another embodiment of the present invention
It is intended to.In figure 3, input image signal Din frame renewal rate is 30Hz, for a specific pixel, it is assumed that the specific pixel
Pixel value in former frame is " 10 ", and pixel value of the specific pixel in present frame and next frame is " 200 ", then for
Accelerate the reaction time of liquid crystal, reaction time accelerating circuit 140 can determine pixel after an adjustment according to inquiry table 152_1
Be worth " 210 ", and output circuit 160 by this adjust after pixel value " 210 " be sent to display panel to be shown.Then, under
During one frame, it is " 200 " that the pixel value for the specific pixel that output circuit 160 exports, which is replied,.
In the example in figure 3, because frame renewal rate is relatively low, if after still this is adjusted using inquiry table 152_4
Pixel value is set to " 230 ", then it is envisioned that the region of oblique line portion can become much larger, it is secondary in turn result in the display of worse image
Effect；Therefore, determine pixel value " 210 " after adjustment through using another inquiry table 152_1, oblique line portion can be reduced
Point area, also more with allow image show side effect will not increase because of frame renewal rate step-down.
Fig. 4 show the operation chart of reaction time accelerating circuit 140 according to another embodiment of the present invention.Such as Fig. 4
Shown, the frame renewal rate of multiple successive frames is dynamically to change, when frame renewal rate is higher, reaction time accelerating circuit
140 can use stronger reaction time to accelerate degree, that is, pixel value and target pixel value (actual pixel value) after adjusting
Difference can be bigger；And when frame renewal rate is relatively low, reaction time accelerating circuit 140 can use the weaker reaction time to accelerate
Degree, that is, the difference of pixel value and target pixel value (actual pixel value) can be smaller after adjustment.Through above-mentioned according to frame
Renewal rate can allow dynamically to adjust the technical scheme that the reaction time accelerates degree and show that image is having what the reaction time accelerated
Image quality can be more kept under situation.
Fig. 5 is refer to, it is a kind of image display method for being applied to a display according to one embodiment of the invention
Flow chart.It is as described below with reference to the content disclosed by figure 1 above~4 and specification, flow.
Step 500：Flow starts.
Step 502：Receive an input image signal.
Step 504：The input image signal is decoded to obtain the image data of a frame, and detects the one of the frame
Frame renewal rate.
Step 506：Image processing is carried out to produce the pixel value of multiple pixels of the frame to the image data of the frame.
Step 508：Pixel value after multiple adjustment of the plurality of pixel is determined according to the frame renewal rate, wherein different
Frame renewal rate can produce pixel value after different the plurality of adjustment.
Step 510：Pixel value after the plurality of adjustment is sent to a display panel.
The brief summary present invention, in the device and image display method applied to display of the present invention, the reaction time
Accelerating intensity is changed according to frame renewal rate, and in the case of frame renewal rate is lower, the reaction time accelerates intensity
Can be lower, it is exaggerated with the side effect for avoiding causing image to show because of relatively low frame renewal rate.Through the present invention, Ke Yirang
Display image can more keep image quality in the case of having reaction time acceleration.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made
Enclose to work as and be defined by what claims were defined.
Claims (14)
1. a kind of device for being applied to a display, includes：
One receiving circuit, to receive an input image signal；
One detection circuit, is coupled to the receiving circuit, to detect one of the image data of a frame in the input image signal
Frame renewal rate；
One image-processing circuit, the detection circuit is coupled to, to carry out image processing to the image data of the frame to produce this
Multiple target pixel values of multiple pixels of frame；And
One reaction time accelerating circuit, the detection circuit and the image-processing circuit are coupled to, to update speed according to the frame
Rate exports pixel value after the plurality of adjustment to a display panel to determine pixel value after multiple adjustment of the plurality of pixel；
The specific pixel being wherein directed in the plurality of pixel, under different frame renewal rates, the reaction time accelerating circuit is produced
Pixel value can differ after the adjustment of the raw specific pixel.
2. device as claimed in claim 1, it is characterised in that when the frame has one first picture frame renewal rate, the reaction
Time accelerating circuit determines that the specific pixel has pixel value after one first adjustment；And it is less than first picture frame when the frame has
During one second picture frame renewal rate of renewal rate, the reaction time accelerating circuit determines that the specific pixel has one second adjustment
Gap after pixel value afterwards, wherein second adjustment between this of pixel value and the specific pixel target pixel value can be less than this
Gap after one adjustment between pixel value and the target pixel value.
3. device as claimed in claim 1, it is characterised in that when the frame renewal rate is lower, the reaction time accelerates electricity
The specific pixel that pixel value is exported closer to the image-processing circuit after the adjustment for the specific pixel that road is determined
The target pixel value.
4. device as claimed in claim 1, has been additionally comprised：
One storage element, multiple queries table is stored, wherein the plurality of inquiry table is respectively corresponding to the different frame renewal rates；
The wherein reaction time accelerating circuit is according to the frame renewal rate to be selected from the plurality of inquiry table of the storage element
Go out inquiry table corresponding to one, and according to the target pixel value of the specific pixel to determine that this is specific from the corresponding inquiry table
Pixel value after the adjustment of pixel.
5. device as claimed in claim 4, it is characterised in that the plurality of inquiry table is respectively corresponding to different frame renewal rates
Section.
6. device as claimed in claim 4, it is characterised in that the reaction time accelerating circuit is according to the specific pixel of the frame
The target pixel value and a former frame the specific pixel a pixel value, to determine this from the corresponding inquiry table
Pixel value after the adjustment of specific pixel.
7. device as claimed in claim 1, it is characterised in that the device is disposed in a TV, and the receiving circuit institute
The frame renewal rate of the input image signal received can dynamically change.
8. a kind of image display method for being applied to a display, includes：
Receive an input image signal；
Detect a frame renewal rate of the image data of a frame in the input image signal；
Image processing is carried out to produce multiple target pixel values of multiple pixels of the frame to the image data of the frame；And
Pixel value after multiple adjustment of the plurality of pixel is determined according to the frame renewal rate, and by pixel value after the plurality of adjustment
Export to a display panel；The specific pixel being wherein directed in the plurality of pixel, under different frame renewal rates, this is specific
Pixel value can differ after the adjustment of pixel.
9. image display method as claimed in claim 8, it is characterised in that the plurality of picture is determined according to the frame renewal rate
Pixel value after multiple adjustment of element, and pixel value after the plurality of adjustment was exported to the step of display panel and included：
When the frame has one first picture frame renewal rate, determine that the specific pixel has pixel value after one first adjustment；And
When the frame has the one second picture frame renewal rate less than the first picture frame renewal rate, determine that the specific pixel has
Pixel value after one second adjustment；
Gap wherein after second adjustment between this of pixel value and the specific pixel target pixel value can be less than first tune
Gap after whole between pixel value and the target pixel value.
10. image display method as claimed in claim 8, it is characterised in that determine that this is more according to the renewal rate of the frame
The step of multiple yield values of individual pixel, includes：
When the frame renewal rate is lower, pixel value is closer to the specific pixel after the adjustment of the specific pixel determined
The target pixel value.
11. image display method as claimed in claim 8, has been additionally comprised：
Multiple queries table is provided, wherein the plurality of inquiry table is respectively corresponding to different frame renewal rates；And according to the frame more
New speed exports pixel value after the plurality of adjustment to the display surface to determine pixel value after multiple adjustment of the plurality of pixel
The step of plate, includes：
According to the frame renewal rate with inquiry table corresponding to selecting one from the plurality of inquiry table；And
According to the target pixel value of the specific pixel to determine the adjustment of the specific pixel from the corresponding inquiry table after
Pixel value.
12. image display method as claimed in claim 11, it is characterised in that the plurality of inquiry table is respectively corresponding to different
Frame renewal rate section.
13. image display method as claimed in claim 11, it is characterised in that according to the target pixel value of the specific pixel with
The step of determining pixel value after the adjustment of the specific pixel from the corresponding inquiry table includes：
According to the target pixel value of the specific pixel of the frame and a pixel value of the specific pixel of a former frame, with certainly
Determine pixel value after the adjustment of the specific pixel in the corresponding inquiry table.
14. image display method as claimed in claim 8, it is characterised in that the image display method is to be applied to a TV
In, and the frame renewal rate of the input image signal can dynamically change.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610711956.1A CN107784981B (en) | 2016-08-24 | 2016-08-24 | Device applied to display and related image display method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610711956.1A CN107784981B (en) | 2016-08-24 | 2016-08-24 | Device applied to display and related image display method |
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| CN107784981A true CN107784981A (en) | 2018-03-09 |
| CN107784981B CN107784981B (en) | 2020-08-04 |
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Cited By (1)
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| EP3651148A1 (en) * | 2018-11-08 | 2020-05-13 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
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| CN107784981B (en) | 2020-08-04 |
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