CN106328036B - A kind of display equipment and the grayscale extended method suitable for showing equipment - Google Patents
A kind of display equipment and the grayscale extended method suitable for showing equipment Download PDFInfo
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- CN106328036B CN106328036B CN201610739437.6A CN201610739437A CN106328036B CN 106328036 B CN106328036 B CN 106328036B CN 201610739437 A CN201610739437 A CN 201610739437A CN 106328036 B CN106328036 B CN 106328036B
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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
- G09G3/2007—Display of intermediate tones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Processing Of Color Television Signals (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a kind of display equipment and the grayscale extended methods suitable for showing equipment, wherein show that equipment includes video card, it is connected and is used for the decoding unit of video signal decoding with video card, it is connected and is used to handle the gray scale correction unit of luma data with decoding unit, it is connected with gray scale correction unit and recomposition unit that the bit wide that is used to expand reconfigures, the luminance proportion unit of brightness uniformity is respectively connected with and is used to make with recomposition unit and gray scale correction unit, it is connected and is used to export the frame per second control unit of grayscale after extension with luminance proportion unit, it is connected and is used for the coding unit of vision signal coding with frame per second control unit, and the display unit for being connected with coding unit and being used to show.The abnormal conditions such as the flashing that the utility model has the advantages that higher gray scale spreading number (such as 20) not only may be implemented, and can be applied to the scene of display unit bit wide lower (such as 6), and can substantially reduce display picture.
Description
Technical field
The present invention relates to a kind of display equipment and the grayscale extended methods suitable for showing equipment, belong to display control technology
Field.
Background technique
In medical image display field, small gray difference may generate strong influence to diagnostic result, just deposit
The mistaken diagnosis a possibility that.Therefore, the Professional display monitor of medical field must have the ability for showing more gray number, relatively first now
Into professional medical display bit wide can achieve 16, i.e. display has display 216The ability of kind grayscale.
Since the liquid crystal display panel bit wide of mainstream is mostly 8,10, how to be shown more with the panel compared with low-bit width
More gray numbers, this is one of the contradiction that field of display initially faces.The it is proposed very good solution of frame per second control technology this
A contradiction is used by most of display producers now.
Frame per second control technology is to achieve the purpose that grayscale is extended using the persistence of vision of human eye.Required extension bit wide compared with
In the case where high (such as 20) or display unit bit wide lower (such as 6), frame per second control technology, which " can not deceive ", crosses human eye, thus
Display is set the abnormal conditions such as flashing, noise occur.How to crack such abnormal problem is the current bottleneck of frame per second control technology
Where the difficult point of place and the extension of display grayscale.
Summary of the invention
It is a primary object of the present invention to overcome deficiency in the prior art, provide a kind of display equipment and be suitable for aobvious
The grayscale extended method for showing equipment not only may be implemented higher gray scale spreading number (such as 20), and can be applied to display unit position
The scene of width lower (such as 6), and the abnormal conditions such as flashing that can substantially reduce display picture, the great utilization having in industry
Value.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of display equipment, including video card, are connected with video card and are used for the decoding unit of video signal decoding, single with decoding
Member is connected and the gray scale correction unit for handling luma data, the bit wide for being connected with gray scale correction unit and being used to expand
The recomposition unit reconfigured is respectively connected with recomposition unit and gray scale correction unit and is used to make the brightness of brightness uniformity equal
Weigh unit, is connected and is used to export the frame per second control unit of grayscale after extension with luminance proportion unit, with frame per second control unit phase
Connect and be used for the coding unit of vision signal coding, and the display unit for being connected with coding unit and being used to show.
Further: the display unit is greyscale display or color monitor.
The grayscale extended method that the present invention also provides a kind of suitable for showing equipment, comprising the following steps:
1) video signal decoding that video card exports is rgb signal that bit wide is M by decoding unit, wherein R, G, B signal
It is respectively M, M is the bit wide of video card；
2) gray scale correction unit is tabled look-up inside circuit and is corrected respectively to M R, G, B signal, and number after output calibration
Bit wide according to, R, G after correction, B signal is respectively M+N, and wherein N is to need expansible bit wide；
3) gray scale correction unit exports low M+N-K of R, G, B signal to recomposition unit respectively, and recomposition unit is to 3 M+
N-K R, G, B signal carry out data recombination according to recombination condition and export 3 M+N-K recombination datas, and wherein K is aobvious
Show the bit wide of unit；
4) luminance proportion unit divides the 3 M+N-K recombination datas from recomposition unit according to principle is uniformly distributed
Not Ti Huan R, G, low M+N-K of B signal after the M+N bit correction of gray scale correction unit output, and uniformly divide on Spatial Dimension
Cloth；
5) frame per second control unit output indicates 2M+NThe RGB data of kind grayscale, bit wide K；
6) RGB data that coding unit exports frame per second control unit is output to display unit after encoding and shows.
Further: the recombination condition in the step 3) is, if gray scale correction unit export respectively low M+N-K of R,
G, B signal is respectively a, b, c, and the recombination data for setting 3 M+N-K is respectively x, y, z, it is desirable that x, y, z meets three following
Condition,
One: x+y+z=a+b+c of condition,
Condition two: x=2M+N-KOr x=0,
Condition three: y=2M+N-KOr y=0.
Further: the principle that is uniformly distributed in the step 4) is, in the position the M+N school of replacement gray scale correction unit output
It is spatially adjacent to avoid identical numerical value by being uniformly distributed for numerical value after just when R, G, low M+N-K of B signal.
Compared with prior art, the invention has the advantages that:
A kind of display equipment provided by the invention and the grayscale extended method suitable for showing equipment pass through video card, decoding
Unit, gray scale correction unit, recomposition unit, luminance proportion unit, frame per second control unit, coding unit and display unit are set
It sets, wherein the bit wide expanded is reconfigured output through recomposition unit, then carries out brightness uniformity through luminance proportion unit, with
And using grayscale after the output extension of frame per second control unit, higher gray scale spreading number (such as 20) not only may be implemented, and can apply
In the scene of display unit bit wide lower (such as 6)；Moreover, because the low M+N-K bit value of RGB data is 0 or 2M+N-KWhen, warp
Numerical value will not change after crossing the processing of frame per second control unit, therefore only have a sub- picture in RGB data three sub-pixels R, G, B
With frame per second numerical value change occurs for element, so as to substantially reduce the flickering of picture.
Above content is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, under
In conjunction with attached drawing, the invention will be further described in face.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for showing equipment of the present invention；
Fig. 2 is a kind of flow chart suitable for showing the grayscale extended method of equipment of the present invention.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further illustrated.
The present invention provides a kind of display equipment, as shown in Figure 1, including video card, is connected with video card and is used for vision signal solution
The decoding unit of code, is connected with decoding unit and is used to handle the gray scale correction unit of luma data, with gray scale correction unit phase
Connect and recomposition unit that the bit wide that is used to expand reconfigures, is respectively connected with and is used in combination with recomposition unit and gray scale correction unit
In the luminance proportion unit for making brightness uniformity, it is connected and is used to export the frame per second control of grayscale after extension with luminance proportion unit
Unit, is connected with frame per second control unit and is used for the coding unit of vision signal coding, and is connected and is used for coding unit
The display unit of display；Wherein display unit is greyscale display or color monitor.
The grayscale extended method that the present invention also provides a kind of suitable for showing equipment, as shown in Figure 2, comprising the following steps:
1) video signal decoding that video card exports is rgb signal that bit wide is M by decoding unit, wherein R, G, B signal
It is respectively M, M is the bit wide of video card.
2) gray scale correction unit is tabled look-up inside circuit and is corrected respectively to M R, G, B signal, and number after output calibration
Bit wide according to, R, G after correction, B signal is respectively M+N, and wherein N is to need expansible bit wide.
3) gray scale correction unit exports low M+N-K of R, G, B signal to recomposition unit respectively, and recomposition unit is to 3 M+
N-K R, G, B signal carry out data recombination according to recombination condition and export 3 M+N-K recombination datas, and wherein K is aobvious
Show the bit wide of unit；
The recombination condition is, if gray scale correction unit exports low M+N-K of R, G respectively, B signal is respectively a, b, c,
And the recombination data for setting 3 M+N-K is respectively x, y, z, it is desirable that x, y, z meets following three conditions,
One: x+y+z=a+b+c of condition,
Condition two: x=2M+N-KOr x=0,
Condition three: y=2M+N-KOr y=0.
4) luminance proportion unit divides the 3 M+N-K recombination datas from recomposition unit according to principle is uniformly distributed
Not Ti Huan R, G, low M+N-K of B signal after the M+N bit correction of gray scale correction unit output, and uniformly divide on Spatial Dimension
Cloth；Wherein, being uniformly distributed principle is, the low M+N-K of R, G, B signal after the M+N bit correction of replacement gray scale correction unit output
It is spatially adjacent to avoid identical numerical value by being uniformly distributed for numerical value when position.
5) frame per second control unit output indicates 2M+NThe RGB data of kind grayscale, bit wide K.
6) RGB data that coding unit exports frame per second control unit is output to display unit after encoding and shows.
Be M=8 with video card output, the bit wide for needing to extend be N=12, display unit be K=8 for the present invention
Be suitable for show that the grayscale extended method of equipment is described in detail.
1) video card exports the vision signal that color depth is 8, exports rgb signal after decoded unit, wherein R, G, B signal are each
It is 8.
2) gray scale correction unit meets the rgb signal of target call through output of tabling look-up inside circuit, and wherein R, G, B signal are each
It is 20.
3) gray scale correction unit output R, G, low 12 of B signal arrive recomposition unit, it is assumed that low 12 difference of rgb signal
For a=4000, b=2000, c=1000, the data after recombination are x, y, z, are recombinated according to following condition,
One: x+y+z=a+b+c of condition,
Condition two: x=2M+N-KOr x=0,
Condition three: y=2M+N-KOr y=0；
Data after then recombinating are x=0, y=4096, z=2904.
4) luminance proportion unit receive gray scale correction unit output rgb signal most-significant byte and recomposition unit output x,
Y, z data generate respectively 20 RGB datas.
Specifically, it is assumed that the most-significant byte of the rgb signal of gray scale correction unit output is respectively X=50, Y=100, Z=200, root
It is uniformly distributed principle according to x, y, z, 20 outputs of luminance proportion unit are respectively,
R=X*212+ y,
G= Y*212+ x,
B= Z*212+z。
5) frame per second control unit receives luminance proportion unit and exports each 20 RGB datas, and exports each 8 RGB numbers
According to.Since the R of input, G-signal low 12 be 0, therefore R=X=50, G=Y=100 remain unchanged；The numerical value of B is in two number of Z and Z+1
It changes in value with frame per second, variable cycle is 4096 frames, and the frame number that wherein B value is Z+1 is 2904 frames (z value), value Z
Frame number be 1192 frames (value of 4096-z).
6) RGB data of coding unit received frame rate control unit output and that display unit is output to after being encoded is aobvious
Show.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (5)
1. a kind of grayscale extended method suitable for showing equipment, which comprises the following steps:
1) video signal decoding that video card exports is rgb signal that bit wide is M by decoding unit, and wherein R, G, B signal are respectively M
Position, M is the bit wide of video card；
2) gray scale correction unit is tabled look-up inside circuit and is corrected respectively to M R, G, B signal, and data after output calibration,
R, G after correction, B signal bit wide be respectively M+N, wherein N is to need expansible bit wide；
3) gray scale correction unit exports low M+N-K of R, G, B signal to recomposition unit respectively, and recomposition unit is to 3 M+N-K
R, G, B signal data recombination is carried out according to recombination condition and exports 3 M+N-K recombination datas, wherein K is display unit
Bit wide；
4) luminance proportion unit replaces the 3 M+N-K recombination datas from recomposition unit according to principle is uniformly distributed respectively
R, G, low M+N-K of B signal after the M+N bit correction of gray scale correction unit output are changed, and is uniformly distributed on Spatial Dimension；
5) frame per second control unit output indicates 2M+NThe RGB data of kind grayscale, bit wide K；
6) RGB data that coding unit exports frame per second control unit is output to display unit after encoding and shows.
2. a kind of grayscale extended method suitable for showing equipment according to claim 1, it is characterised in that: the step
3) the recombination condition in is, if gray scale correction unit exports low M+N-K of R, G respectively, B signal is respectively a, b, c, and sets 3
A M+N-K of recombination data is respectively x, y, z, it is desirable that and x, y, z meets following three conditions,
One: x+y+z=a+b+c of condition,
Condition two: x=2M+N-KOr x=0,
Condition three: y=2M+N-KOr y=0.
3. a kind of grayscale extended method suitable for showing equipment according to claim 1, it is characterised in that: the step
4) principle that is uniformly distributed in is, R, G, low M+N-K of B signal after the M+N bit correction of replacement gray scale correction unit output
When, it is spatially adjacent to avoid identical numerical value by being uniformly distributed for numerical value.
4. a kind of display equipment, it is characterised in that: the display equipment runs one kind described in claim 1 ~ 3 any one and is applicable in
In the grayscale extended method of display equipment, including video card, it is connected and is used for the decoding unit of video signal decoding with video card, with solution
Code unit is connected and is used to handle the gray scale correction unit of luma data, is connected with gray scale correction unit and is used to expand
The recomposition unit that bit wide reconfigures is respectively connected with recomposition unit and gray scale correction unit and is used to make the bright of brightness uniformity
Balanced unit is spent, is connected and is used to export the frame per second control unit of grayscale after extension with luminance proportion unit, is controlled with frame per second single
Member is connected and the coding unit for vision signal coding, and the display unit for being connected with coding unit and being used to show.
5. a kind of display equipment according to claim 4, it is characterised in that: the display unit is greyscale display or coloured silk
Color display.
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| CN201610739437.6A CN106328036B (en) | 2016-08-26 | 2016-08-26 | A kind of display equipment and the grayscale extended method suitable for showing equipment |
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| CN106328036B true CN106328036B (en) | 2019-06-04 |
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| CN111093042B (en) * | 2019-12-27 | 2022-02-22 | Tcl华星光电技术有限公司 | White balance adjustment system and white balance adjustment method |
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