CN101527125B - Image display device and image data compensation method and image data compensation device of same - Google Patents
Image display device and image data compensation method and image data compensation device of same Download PDFInfo
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- CN101527125B CN101527125B CN 200810083287 CN200810083287A CN101527125B CN 101527125 B CN101527125 B CN 101527125B CN 200810083287 CN200810083287 CN 200810083287 CN 200810083287 A CN200810083287 A CN 200810083287A CN 101527125 B CN101527125 B CN 101527125B
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Abstract
The invention discloses an image data compensation method, which comprises: firstly, receiving and storing image data corresponding to a plurality of adjacent columns of pixels in a pixel array; secondly, capturing image data corresponding to a row of pixels in the plurality of columns of pixels; and finally, when the difference between the maximum gray value and the minimum gray value of the image data is smaller than a limited range, smoothing the gray value of the image data.
Description
Technical field
The invention relates to a kind of image display and image data compensation method and device, and particularly relevant for a kind of image display and image data compensation method and device with mild image frame.
Background technology
Along with the progress of technology, the size of liquid crystal indicator is done larger and larger.Yet, when the panel of liquid crystal indicator increasing, although the corresponding image data of image frame that the institute wish shows is for continuously, because the block of pixels on the panel is too large, and so that image frame may present the phenomenon of tomography.Traditional liquid crystal indicator system adopts the method for position expansion (bit extension), for example the corresponding image data of each row pixel is expanded to the image data of 10 sizes by the image data equal proportion of 8 sizes, with the phenomenon of utilizing higher fineness to remove compensation fault.Yet, only compensate for the image pixel of horizontal direction traditionally, and for the image pixel of vertical direction, still might present the phenomenon of tomography.
Summary of the invention
The present invention proposes a kind of image display and image data compensation method and device, relation between the gray value of the relatively more capable corresponding image data of pixel of utilization, and the gray value of the corresponding image data of mildization row pixel according to this, the corresponding image data of pel array is done compensation in vertical direction.
According to a first aspect of the invention, propose a kind of image data compensation method, comprising: at first, receive and store the corresponding image data of multiple row pixel adjacent in the pel array.Then, capture the corresponding image data of one-row pixels in these a little row pixels.Afterwards, the maximum gradation value in image data and minimum gradation value differ less than a limited range, then change gently the gray value of image data.
According to a second aspect of the invention, propose a kind of image data compensation arrangement, comprise temporary storage location and compensating unit.Temporary storage location receives and stores the corresponding image data of multiple row pixel adjacent in the pel array.The corresponding image data of one-row pixels of the multiple row pixel that compensating unit acquisition is adjacent, and when the maximum gradation value in the image data and minimum gradation value differed less than a limited range, compensating unit was changed the gray value of image data gently.
According to a third aspect of the invention we, propose a kind of image display, comprise pel array, scan drive cell, image data compensation arrangement and data-driven unit.Pel array has a plurality of pixels.Scan drive cell is controlled this a little pixels.The image data compensation arrangement comprises temporary storage location and compensating unit.Temporary storage location receives and stores the adjacent corresponding image data of multiple row pixel in the pel array.The corresponding image data of one-row pixels of the multiple row pixel that compensating unit acquisition is adjacent, and maximum gradation value and minimum gradation value in image data differ less than a limited range, and compensating unit is changed the gray value of image data gently.So far a little pixels of corresponding pixel voltage are exported according to the gray value of the image data after mildization in the data-driven unit.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates the calcspar according to the image display of preferred embodiment of the present invention.
Fig. 2 illustrates the detailed block diagram according to the image data compensation arrangement 130 of preferred embodiment of the present invention.
Fig. 3 illustrates the flow chart according to the image data compensation method of preferred embodiment of the present invention.
The main element symbol description:
100: image display
110: pel array
120: scan drive cell
130: the image data compensation arrangement
140: temporary storage location
141～145: line buffer
150: compensating unit
152: comparing unit
154: processing unit
156: comparing unit
158: compensator
160: the data-driven unit
Embodiment
The invention provides a kind of image display and image data compensation method and device, utilize gray value and a plurality of specific gray value sample of the corresponding image data of comparison row pixel to show, then according to the gray value of the result who compares with the corresponding image data of mildization row pixel, so that the corresponding image data of pel array is compensated in vertical direction.
Please refer to Fig. 1, it illustrates the calcspar according to the image display of preferred embodiment of the present invention.Image display 100 comprises pel array 110, scan drive cell 120, image data compensation arrangement 130 and data-driven unit 160.Pel array 110 has a plurality of pixels.Scan drive cell 120 is to be electrically connected to pel array 110, in order to control a plurality of pixels of pel array 110.
Image data compensation arrangement 130 comprises temporary storage location 140 and compensating unit 150.Temporary storage location 140 receives and stores the adjacent corresponding image data of multiple row pixel in the pel array 110.The corresponding image data of one-row pixels of the multiple row pixel that compensating unit 150 acquisitions are adjacent.If differed less than a limited range by maximum gradation value and the minimum gradation value in the corresponding image data of capable pixel that captures, then compensating unit 150 is understood the gray value of the corresponding image data of mildization (smooth) this journey pixels.Wherein, this limited range for example is 1.
If maximum gradation value and the minimum gradation value of the corresponding image data of row pixel differ above this limited range, the then action the gray value of row pixel corresponding image data not changed gently of compensating unit 150, and the direct corresponding image data of the capable pixel of output.Data-driven unit 160 is coupled to compensating unit 150, and the gray value of the image data after mildization of foundation or the image data of directly exporting is exported corresponding pixel voltage to the pixel of pel array 110.
Please refer to Fig. 2, it illustrates the detailed block diagram according to the image data compensation arrangement 130 of preferred embodiment of the present invention.Image data compensation arrangement 130 comprises temporary storage location 140 and compensating unit 150.Temporary storage location 140 comprises a plurality of line buffers (line buffer), and these a little line buffers are respectively in order to store the adjacent corresponding image data of multiple row pixel.These a little image datas are the image data for having been compensated in horizontal direction for example.
Compensating unit 150 comprises comparing unit 152, processing unit 154, comparing unit 156 and compensator 158.In compensating unit 150, comparing unit 152 captures the corresponding image data of one-row pixels of adjacent multiple row pixel, and the gray value of the corresponding image data of this journey pixel is got minimum value.Processing unit 154 is according to the gray value of the corresponding image data of resulting minimum gradation value normalization this journey pixel.
Comparing unit 156 shows (pattern) in order to gray value and a plurality of specific gray value sample of comparing the image data after the normalization,, the relation of the gray value of the corresponding image data of row pixel one of shows that then comparing unit 156 can be exported one group of offset that corresponding specific gray value sample shows if being same as these a plurality of specific gray value samples.Compensator 158 can add minimum gradation value with this group offset, with the gray value of the corresponding image data of mildization row pixel.
Lift temporary storage location 140 and comprise that 5 line buffers 141～145 explain for example.In order to store the corresponding image data of adjacent 5 row pixels in the pel array 110, these a little image datas can be the image data that carries out the horizontal direction compensation to line buffer 141～145, also can be original uncompensated image data respectively.Comparing unit 152 is from the corresponding image data of line buffer 141～145 acquisition one-row pixels, and the gray value of these a little image datas for example is 128,127,127,127,127.Comparing unit 152 from then on 5 gray values obtains minimum gradation value 127.
If comparing unit 152 for example is 128,126,126,126,126 from the gray value of the corresponding image data of capable pixel of line buffer 141～145 acquisitions, because it is 2 that maximum 128 differs with minimum value 126, surpass limited range 1, so the action that compensating unit 150 is not changed gently to the gray value 128,126,126,126,126 of the corresponding image data of row pixel, and directly output.
The present invention also discloses a kind of image data compensation method, please refer to Fig. 3, and it illustrates the flow chart according to the image data compensation method of preferred embodiment of the present invention.At first, in step 300, receive and store the corresponding image data of multiple row pixel adjacent in the pel array.Then, in step 310, capture the corresponding image data of one-row pixels of adjacent multiple row pixel.Then, in step 320, get the minimum gradation value in the corresponding image data of capable pixel.
In step 330, according to the gray value of the corresponding image data of minimum gradation value normalization row pixel.Then, in step 340, gray value and a plurality of specific gray value sample of the image data after the comparison normalization show.Afterwards, in step 350, the gray value of the image data after normalization is same as one first specific gray value sample and shows, the first specific gray value sample is shown a plurality of specific gray value samples and one of shows, then changes gently the gray value of the corresponding image data of capable pixel according to one first group of corresponding offset.
The disclosed image data compensation method of the above embodiment of the present invention, its operation principles system has been specified in the image data compensation arrangement 130, so no longer repeat in this.
The disclosed image display of the above embodiment of the present invention and image data compensation method and device, the gray value and a plurality of specific gray value sample that are the corresponding image data of comparison row pixel show, if the gray value of the corresponding image data of row pixel is same as a plurality of specific gray value samples and one of shows, then change gently the gray value of the corresponding image data of capable pixel according to corresponding offset.Thus, the corresponding image data of pel array is compensated in vertical direction, and therefore, the shown image frame of image display will be more smooth-going, the phenomenon that can not plan a successor, and the while has also kept the sharpness of image frame.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (8)
1. image data compensation method comprises:
(a) receive and store the corresponding image data of multiple row pixel adjacent in the pel array;
(b) capture the corresponding image data of one-row pixels in those row pixels; And
(c) maximum gradation value in the corresponding image data of this row pixel and minimum gradation value differ less than a finite value, then change gently the gray value of the corresponding image data of this row pixel,
Wherein this step (c) comprising:
(c1) get this minimum gradation value in the corresponding image data of this row pixel, according to the gray value of the corresponding image data of this minimum gradation value this row pixel of normalization, and gray value and a plurality of specific gray value sample of the corresponding image data of this row pixel after the comparison normalization show;
(c2) if the gray value of the corresponding image data of this row pixel after the normalization is same as those specific gray value samples one of to be shown, then change gently the gray value of the corresponding image data of this row pixel according to one group of corresponding offset.
2. image data compensation method as claimed in claim 1, it is characterized in that, if this maximum gradation value and this minimum gradation value in the corresponding image data of this row pixel differ above this finite value, the action of then the gray value of the corresponding image data of this row pixel not being changed gently.
3. image data compensation method as claimed in claim 2 is characterized in that, this finite value is to be 1.
4. image data compensation arrangement comprises:
One temporary storage location is in order to receive and to store the corresponding image data of multiple row pixel adjacent in the pel array; And
One compensating unit, in order to the corresponding image data of the one-row pixels that captures those row pixels, and maximum gradation value and minimum gradation value in the corresponding image data of this row pixel differ less than a finite value, then this compensating unit is changed the gray value of the corresponding image data of this row pixel gently
Wherein this compensating unit comprises:
One comparing unit is in order to get this minimum gradation value to the corresponding image data of this row pixel;
One processing unit is in order to the gray value according to the corresponding image data of this minimum gradation value this row pixel of normalization;
One comparing unit, show in order to gray value and a plurality of specific gray value sample of comparing the corresponding image data of this row pixel after the normalization, if the gray value of the corresponding image data of this row pixel after the normalization is same as those specific gray value samples and one of shows, then this comparing unit is exported one group of corresponding offset; And
One compensator is in order to change gently the gray value of the corresponding image data of this row pixel according to this group offset.
5. image data compensation arrangement as claimed in claim 4 is characterized in that, this temporary storage location comprises a plurality of line buffers, and those line buffers are respectively in order to store the corresponding image data of those row pixels.
6. image data compensation arrangement as claimed in claim 4 is characterized in that, maximum gradation value and minimum gradation value that those specific gray value samples show differ less than this finite value.
7. image display comprises:
One pel array has a plurality of pixels;
The one scan driver element is in order to control those pixels;
One image data compensation arrangement comprises:
One temporary storage location is in order to receive and to store the corresponding image data of multiple row pixel adjacent in this pel array; And
One compensating unit, in order to the corresponding image data of the one-row pixels that captures those row pixels, and maximum gradation value and minimum gradation value in the corresponding image data of this row pixel differ less than a finite value, and then this compensating unit is changed the gray value of the corresponding image data of this row pixel gently; And
Corresponding pixel voltage is exported to those pixels of this pel array in order to the gray value of the corresponding image data of this row pixel after mildization of foundation in one data-driven unit,
Wherein this compensating unit comprises:
One comparing unit is in order to get this minimum gradation value to the corresponding image data of this row pixel;
One processing unit is in order to the gray value according to the corresponding image data of this minimum gradation value this row pixel of normalization;
One comparing unit, show in order to gray value and a plurality of specific gray value sample of comparing the corresponding image data of this row pixel after the normalization, if the gray value of the corresponding image data of this row pixel after the normalization is same as those specific gray value samples and one of shows, then this comparing unit is exported one group of corresponding offset; And
One compensator is in order to change gently the gray value of the corresponding image data of this row pixel according to this group offset.
8. image display as claimed in claim 7 is characterized in that, this temporary storage location comprises a plurality of line buffers, and those line buffers are respectively in order to store the corresponding image data of those row pixels.
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| TWI675583B (en) * | 2018-07-23 | 2019-10-21 | 緯創資通股份有限公司 | Augmented reality system and color compensation method thereof |
| CN111986629B (en) * | 2020-08-07 | 2021-09-03 | 深圳市华星光电半导体显示技术有限公司 | Method and device for improving liquid crystal display panel fault phenomenon and display panel |
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| CN1956031A (en) * | 2005-10-25 | 2007-05-02 | Lg.菲利浦Lcd株式会社 | Flat display apparatus and picture quality controling method thereof |
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