CN109817179A - Liquid crystal display panel brightness adjusting method, regulating system and 3D printing device - Google Patents
Liquid crystal display panel brightness adjusting method, regulating system and 3D printing device Download PDFInfo
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- CN109817179A CN109817179A CN201910237156.4A CN201910237156A CN109817179A CN 109817179 A CN109817179 A CN 109817179A CN 201910237156 A CN201910237156 A CN 201910237156A CN 109817179 A CN109817179 A CN 109817179A
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Abstract
The invention discloses a kind of liquid crystal display panel brightness adjusting methods, regulating system and 3D printing device, the brightness adjusting method passes through the first grayscale value obtained wait light the corresponding target gamma curve of each pixel in image, and according to the first grayscale value, and the corresponding relationship of first grayscale value and the second grayscale value pre-established, determine corresponding second grayscale value of each pixel of liquid crystal display panel, it is lighted further according to each pixel in the second grayscale value driving liquid crystal display panel, to realize the display effect for reaching target gamma curve using preset gamma curve cured in liquid crystal display panel, in the utilization rate for carrying out improving grayscale when 3D printing.
Description
Technical field
The present invention relates to field of display technology, espespecially a kind of liquid crystal display panel brightness adjusting method, regulating system and 3D
Printing equipment.
Background technique
3D printing is novel rapid prototyping & manufacturing technology, it manufactures product by multiple-layer stacked growing principle, can overcome biography
The simplification production of arbitrarily complicated structure member may be implemented in the special construction obstacle that system machining cannot achieve.Currently, 3D
Printing technique is roughly divided into following several technologies: light-cured type, fused glass pellet, the manufacture of nonwoven fabric from filaments body, selective laser are burnt
Knot, selective laser melting etc. are several, and since the 3D printing technique of light-cured type has, high-res, molded surface be smooth, ruler
The advantages that very little precision is high, is widely used in production technology.
For Stereolithography 3D printing technique, process is realized are as follows: liquid crystal display image-forming principle is utilized, in microcomputer
Under the driving of calculation machine and display drive circuit, provide picture signal by computer program, using ultraviolet light to be contained in printing
Liquid resin in slot is solidified, and a thin layer for needing the model printed is formed.But liquid crystal display in the related technology
The gamma curve that screen uses is the gamma curve for display, and human eye is most sensitive to gamma curve identification, in 3D printing
Cheng Zhong, perception and mismatch of the resin to the perception and human eye of brightness to brightness, is accordingly used in the gamma curve and use of 3D printing
It is different in the gamma curve of display, if still being solidified using gamma curve driving liquid crystal display panel to resin,
The utilization rate of grayscale is not high.But it has not been used to the driving chip of 3D printing in the related technology.In addition, the prior art is also very
It is difficult to be used adjusting display by way of gamma curve (external resistance string is adjusted and built-in code is adjusted) to obtain 3D printing
Gamma curve.Specifically, for external resistance string regulative mode, resistance string partial pressure mode and driving chip (IC) internal resistance are deposited
In the more difficult gamma curve for meeting 3D printing, and there are gamma curve transition problems between adjustable node；Built-in code is debugged,
Although each node is independently adjustable, each adjustable voltage range of node be it is different, some ranges are small, and what is had is big, certain
The voltage of a little nodes can be restricted from the gamma curve for being adjusted to 3D printing.
Therefore, how using in the related technology driving chip improve 3D printing during liquid crystal display panel grayscale
Utilization rate is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The embodiment of the present invention provides a kind of liquid crystal display panel brightness adjusting method, brightness control system and 3D printing dress
It sets, to solve the problems, such as that grayscale utilization rate is not high when carrying out 3D printing using liquid crystal display panel in the related technology.
In a first aspect, the embodiment of the invention provides a kind of liquid crystal display panel brightness adjusting methods, comprising:
Step 1: obtaining image to be lighted determines the wait light the corresponding target gamma curve of each pixel in image
One grayscale value；
Step 2: according to first grayscale value, and first grayscale value that pre-establishes and the second grayscale value
Corresponding relationship determines corresponding second grayscale value of each pixel of liquid crystal display panel, wherein described in target gamma curve
The difference of the corresponding brightness value of first grayscale value brightness value corresponding with second grayscale value in preset gamma curve is less than
Preset threshold；
Step 3: driving each pixel in the liquid crystal display panel to light according to second grayscale value.
Second aspect, the embodiment of the invention provides a kind of brightness control systems, comprising: host computer and LCD display
Plate；
The host computer includes: the first grayscale value determining module, the second grayscale value determining module and data transmission blocks；
The first grayscale value determining module, it is determining described wait light each pixel pair in image for obtaining image to be lighted
First grayscale value of the target gamma curve answered；
The second grayscale value determining module is used for according to first grayscale value, and described first pre-established
The corresponding relationship of grayscale value and the second grayscale value determines corresponding second grayscale value of each pixel of liquid crystal display panel, wherein
Second grayscale value pair in the corresponding brightness value of first grayscale value and preset gamma curve in target gamma curve
The difference for the brightness value answered is less than preset threshold；
The data transmission blocks, for second grayscale value to be supplied to the liquid crystal display panel；
The liquid crystal display panel is used to drive each pixel to light according to second grayscale value.
The third aspect, the embodiment of the invention provides a kind of brightness control systems, comprising: liquid crystal display panel, the liquid
LCD panel includes: selecting module, the first memory module and the second memory module；
First memory module is used to store in the first grayscale value and preset gamma curve in target gamma curve
The corresponding relationship of second grayscale value and the corresponding gray scale voltage of second grayscale value；
Second memory module is for storing the second grayscale value described in the preset gamma curve and the brightness value
Corresponding relationship and the corresponding gray scale voltage of second grayscale value；
The selecting module is used for the display pattern according to the liquid crystal display panel, the first storage mould described in Selection and call
Each pixel of data-driven in block or second memory module is lighted.
Fourth aspect, the embodiment of the invention provides a kind of 3D printing devices, comprising: print cup, light source and second party
Brightness control system described in brightness control system or the third aspect described in face.
The present invention has the beneficial effect that:
A kind of liquid crystal display panel brightness adjusting method, brightness control system and 3D printing dress provided in an embodiment of the present invention
It sets, which passes through the first grayscale value obtained wait light the corresponding target gamma curve of each pixel in image, and
According to the first grayscale value, and the corresponding relationship of first grayscale value and the second grayscale value pre-established, determine liquid crystal
Show corresponding second grayscale value of each pixel of panel, further according to each pixel in the second grayscale value driving liquid crystal display panel
It is bright, it is imitated to realize using the display that preset gamma curve cured in liquid crystal display panel reaches target gamma curve
Fruit, in the utilization rate for carrying out improving grayscale when 3D printing.
Detailed description of the invention
Fig. 1 is the flow chart of liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of preset gamma curve and target gamma curve provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of brightness control system provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another brightness control system provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of 3D printing device provided in an embodiment of the present invention.
Specific embodiment
In the related technology, for Stereolithography 3D printing technique, process is realized are as follows: utilize liquid crystal display panel
Image-forming principle provides picture signal by computer program under the driving of microcomputer and the driving circuit of display panel,
Occurs selective transparent region on liquid crystal display panel.Then under the irradiation of ultraviolet source, the image of liquid crystal display panel
Transparent region, which obstructs ultraviolet light, to be reduced, and is blocked in nontransparent region ultraviolet light, through the ultraviolet light of liquid crystal display panel
Line constitutes ultraviolet light image region.The printing for holding curable liquid resin is placed on the surface of liquid crystal display display panel
The bottom of slot, the print cup is transparent membrane, in the nontransparent region of liquid crystal display panel since no ultraviolet light irradiates, the portion
The liquid photocurable resin divided is not irradiated to by ultraviolet light, still maintains liquid；Corresponding with the transparent region of selectivity
Position, ultraviolet light is irradiated to liquid photocurable resin by transparent membrane, makes to be generated by the liquid resin of ultraviolet light
Curing reaction forms a thin layer for needing the model printed, repeatedly weight so that the liquid resin being irradiated to be made to become solid-state
The simplification production of arbitrarily complicated structure member can be realized in this multiple print procedure.
And the liquid resin in print cup is solidified using liquid crystal display panel still continue to use display in the related technology
With gamma curve, setting value is generally 2.2 ± 0.3, and the gamma curve setting value in the section can make human eye perceive face
The brightness of plate increases the separating capacity to grayscale, enhancing panel grayscale is readable, i.e. gal in the section with grayscale linear change
Horse curve setting value is the setting value of human eye sensitivity.But resin is to mismatch to the perception of light to the perception of ultraviolet light and human eye
, it has been investigated that, the matching between the transmitance and resin solidification rate of ultraviolet light, the two is linearly related, if again using display
Liquid resin is solidified with gamma curve, then is showed when appearing in low ash rank insensitive and too sensitive in high gray
The problem of.It, can not be by right but in the related technology there is no solidifying to have for 3D printing gamma curve in driving chip
Cured display is debugged (external resistance string debugging and built-in code are debugged) with gamma curve to obtain 3D in driving chip
Gamma curve is used in printing.
For the above problem present in the relevant technologies, the embodiment of the invention provides a kind of liquid crystal display panel brightness tune
Section method, brightness control system and 3D printing device.In order to make the purpose of the present invention, the technical scheme and advantages are more clear, under
Face is in conjunction with attached drawing, to liquid crystal display panel brightness adjusting method, brightness control system and 3D printing provided in an embodiment of the present invention
The specific embodiment of device is described in detail.It should be appreciated that preferred embodiment disclosed below be merely to illustrate and
It explains the present invention, is not intended to limit the present invention.And in the absence of conflict, in the embodiment and embodiment in the application
Feature can be combined with each other.
The shapes and sizes of each component do not react actual proportions in attached drawing, and purpose is schematically illustrate the content of present invention.
The embodiment of the invention provides a kind of liquid crystal display panel brightness adjusting methods, as shown in Figure 1, comprising:
S101, it obtains image to be lighted and determines the first grayscale wait light the corresponding target gamma curve of each pixel in image
Value；
Wherein, target gamma curve be with the matched gamma curve of liquid resin to be solidified, which is
It is obtained, is unable to get by the way that the gamma circuit in driving circuit in liquid crystal display panel is adjusted, i.e., by theoretical calculation
By carrying out the corresponding relationship that debugging is unable to get target gamma curve to gamma circuit.
S102, according to the first grayscale value, and the corresponding relationship of the first grayscale value and the second grayscale value pre-established, really
Determine corresponding second grayscale value of each pixel of liquid crystal display panel, wherein the first grayscale value in target gamma curve is corresponding bright
The difference of angle value brightness value corresponding with the second grayscale value in preset gamma curve is less than preset threshold；
Due to the second grayscale in the corresponding brightness value of the first grayscale value and preset gamma curve in target gamma curve
The difference for being worth corresponding brightness value is less than preset threshold, is not considering the corresponding brightness value of the first grayscale value and the second grayscale value pair
When the difference for the brightness value answered, it is believed that the first grayscale value and the corresponding brightness value of the second grayscale value are identical, thus logical
Crossing the brightness value can establish the corresponding relationship of the first grayscale value and the second grayscale value.
S103, each pixel in liquid crystal display panel is driven to light according to the second grayscale value.
Specifically, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, the brightness adjusting method
By obtaining the first grayscale value wait light the corresponding target gamma curve of each pixel in image, and according to the first grayscale value, with
And the corresponding relationship of the first grayscale value and the second grayscale value pre-established, determine each pixel of liquid crystal display panel corresponding second
Grayscale value is lighted further according to each pixel in the second grayscale value driving liquid crystal display panel, utilizes liquid crystal display to realize
Cured preset gamma curve reaches the display effect of target gamma curve in panel, improves grayscale when carrying out 3D printing
Utilization rate.
In liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, reached using display with gamma curve
To the display effect of 3D printing gamma curve, during can be improved 3D printing to the utilization rate of grayscale other than, additionally it is possible to
When there is print defect during 3D printing, convenient for being detected to liquid crystal display panel, specifically: during 3D printing,
It will appear print defect, in order to judge that the problem of whether print defect is due to liquid crystal display panel is caused, liquid crystal display panel can be taken
Under, use visible light source to whether there is problem as external backlight with the display for detecting liquid crystal display panel, due to adopting in the detection process
It is identified with human eye, it is therefore desirable to liquid crystal display panel is driven with gamma curve using the display of human eye sensitivity, and the present invention mentions
For liquid crystal display panel driving chip in it is cured exactly display gamma curve, to simplify the process of detection.
Optionally, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, step S102 is specifically wrapped
It includes:
According to preset target gamma curve, brightness value corresponding with the first grayscale value is determined；
According to brightness value and preset gamma curve, the second grayscale value corresponding with brightness value is determined；
Wherein, preset gamma curve is the brightness value pass corresponding with the second grayscale value being solidificated in liquid crystal display panel
System, target gamma curve are the corresponding relationship of brightness value and the first grayscale value that theoretical calculation obtains.
It is below gamma (1) with target gamma curve, to by the first grayscale for preset gamma curve and gamma (2.2)
The process that value is converted to the second grayscale value is illustrated.Wherein, table one is brightness in target gamma curve and preset gamma curve
The mapping table of value and grayscale value, Grey Level indicate that grayscale value, T% (2.2) indicate each grayscale pair in gamma (2.2)
The brightness value answered, T% (1) indicate the corresponding brightness value of each grayscale in gamma (1).
As shown in Fig. 2 and table one, if the first grayscale value obtained is 112, according to the first grayscale value 112 and target gamma
Curve gamma (1) determines that the corresponding brightness value of the first grayscale value 112 is 0.44, then further according to brightness value 0.44 and preset
Gamma curve gamma (2.2) determines that the second grayscale value is 176.
Table one
| Grey Level | T% (2.2) | T% (1) |
| 0 | 0.00 | 0.00 |
| 16 | 0.00 | 0.06 |
| 32 | 0.01 | 0.13 |
| 48 | 0.03 | 0.19 |
| 64 | 0.05 | 0.25 |
| 80 | 0.08 | 0.31 |
| 96 | 0.12 | 0.38 |
| 112 | 0.16 | 0.44 |
| 128 | 0.22 | 0.50 |
| 144 | 0.28 | 0.56 |
| 160 | 0.36 | 0.63 |
| 176 | 0.44 | 0.69 |
| 192 | 0.53 | 0.75 |
| 208 | 0.63 | 0.81 |
| 224 | 0.75 | 0.88 |
| 240 | 0.87 | 0.94 |
| 256 | 1.00 | 1.00 |
Optionally, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, as shown in Fig. 2, target
Gamma curve is the linear function determined according to two endpoint values of preset gamma curve.
Specifically, saturating due to ultraviolet light in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention
It crosses rate and resin solidification rate is linearly related, is i.e. the demand that target gamma curve gamma (1) can satisfy resin solidification can be with
It avoids appearing in when solidifying resin using preset gamma curve gamma (2.2) insensitive in high gray when low ash rank
Too sensitive problem.Due to the present invention be using have been cured in available liquid crystal display panel preset gamma curve reaches
The display effect of target gamma curve, therefore the endpoint of target gamma curve need to be configured on the basis of preset gamma curve.
Optionally, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, preset threshold is less than
10%.
Specifically, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, since the present invention is benefit
And have been cured in available liquid crystal display panel preset gamma curve reaches the display effect of target gamma curve, therefore obtain
The first grayscale value got in target gamma curve corresponding brightness value not necessarily can by liquid crystal display panel
Cured gamma circuit adjusts to obtain, so as to select the brightness value to correspond to immediate grayscale as the second grayscale value, wherein
The difference of the just corresponding brightness value of the second grayscale value and the corresponding brightness value of the first grayscale value is needed less than 10%, to guarantee
Issue accurate brightness.
Optionally, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, further includes:
Judge whether liquid crystal display panel is used for 3D printing；
When determining liquid crystal display panel for 3D printing, the step S101 to step S103 in above-described embodiment is executed；
It is direct according to preset gamma curve cured in liquid crystal display panel when determining that liquid crystal display panel is used to show
It determines corresponding second grayscale value of each pixel of image to be lighted, each pixel of liquid crystal display panel is driven according to the second grayscale value
It is bright.
Specifically, in liquid crystal display panel brightness adjusting method provided in an embodiment of the present invention, same drive can be passed through
Dynamic chip controls liquid crystal display panel is used for 3D printing, or control liquid crystal display panel is normally shown.When the driving
When chip carries out 3D printing for controlling liquid crystal display panel, the grayscale value for the image to be lighted which will acquire is made
For the first grayscale value, and the second grayscale value is converted by the step S101 to step S103 in the first grayscale value above-described embodiment
It is supplied to liquid crystal display panel, the liquid crystal display panel is made to show 3D printing image；When the driving chip is for controlling liquid crystal
When display panel is normally shown, the grayscale value for the image to be lighted that will acquire is as the second grayscale value, directly by second
Grayscale value is supplied to liquid crystal display panel, which shows the picture of normal human eye sensitivity according to the second grayscale value
Face.
Apart from the above, first liquid crystal display panel can be driven using display with gamma curve before carrying out 3D printing
It is dynamic, i.e., using the grayscale value of the image to be lighted got as the second grayscale value, the second grayscale value is directly supplied to liquid crystal
Show panel, which shows the picture of normal human eye sensitivity according to the second grayscale value, so as to pass through human eye
Intuitive judgment goes out whether the liquid crystal display panel shows normally, if normally, can execute step S101 in above-described embodiment extremely
Step S103 carries out 3D printing, if display is abnormal, needs after liquid crystal display panel is debugged or repaired to be used further to 3D to beat
, there is print defect to avoid when the liquid crystal display panel being directly used for 3D printing in print.
Based on the same inventive concept, the embodiment of the invention also provides a kind of brightness control systems, as shown in figure 3, this is bright
Spending regulating system includes: host computer 1 and liquid crystal display panel 2；
Host computer 1 includes: the first grayscale value determining module 11, the second grayscale value determining module 12 and data transmission blocks
13；
First grayscale value determining module 11 is determined for obtaining image to be lighted wait light the corresponding mesh of each pixel in image
Mark the first grayscale value of gamma curve；
Second grayscale value determining module 12, for according to the first grayscale value, and the first grayscale value for pre-establishing and the
The corresponding relationship of two grayscale values determines corresponding second grayscale value of each pixel of liquid crystal display panel, wherein in target gamma curve
The corresponding brightness value of the first grayscale value brightness value corresponding with the second grayscale value in preset gamma curve difference be less than it is pre-
If threshold value；
Data transmission blocks 13, for the second grayscale value to be supplied to liquid crystal display panel；
Liquid crystal display panel 2 is used to drive each pixel to light according to the second grayscale value.
It specifically, include upper in the brightness control system in brightness control system provided in an embodiment of the present invention
Machine, the host computer determine the first grayscale of the corresponding target gamma curve of image to be lighted by the first grayscale value determining module
Value, is converted to the second grayscale value for the first grayscale value using the second grayscale value determining module, by data transmission blocks by the
Two grayscale values are supplied to liquid crystal display panel, and liquid crystal display panel is made to show corresponding image according to the second grayscale value.Wherein, should
Host computer can be the data processor, data processing equipment or data processing chip etc. being independently arranged, and not limit specifically herein
It is fixed.
Optionally, in brightness control system provided in an embodiment of the present invention, the second grayscale value determining module is specifically used for:
According to preset target gamma curve, brightness value corresponding with the first grayscale value is determined；
According to brightness value and preset gamma curve, the second grayscale value corresponding with brightness value is determined；
Wherein, preset gamma curve is the brightness value pass corresponding with the second grayscale value being solidificated in liquid crystal display panel
System, target gamma curve are the corresponding relationship of brightness value and the first grayscale value that theoretical calculation obtains.
Optionally, in brightness control system provided in an embodiment of the present invention, target gamma curve is according to preset gamma
The linear function that two endpoint values of curve determine.
Wherein, the step of each module for including in the host computer executes is in above-mentioned liquid crystal display panel brightness regulation side
Detailed elaboration is carried out in method, reference can be made to above-mentioned liquid crystal display panel brightness adjusting method is implemented, details are not described herein.
Based on the same inventive concept, the embodiment of the invention provides a kind of brightness control systems, as shown in Figure 4, comprising: liquid
LCD panel 2, liquid crystal display panel 2 include: selecting module 21, the first memory module 22 and the second memory module 23；
First memory module 22 is used to store the in the first grayscale value in target gamma curve and preset gamma curve
The corresponding relationship of two grayscale values and the corresponding gray scale voltage of the second grayscale value；
Second memory module 23 is used to store the corresponding relationship of the second grayscale value and brightness value in preset gamma curve, and
The corresponding gray scale voltage of second grayscale value；
Selecting module 21 is used for the display pattern according to liquid crystal display panel, the first memory module 22 or the second of Selection and call
Each pixel of data-driven in memory module 23 is lighted.
Specifically, in brightness control system provided in an embodiment of the present invention, liquid crystal display panel includes selecting module, should
Selecting module is according in the liquid crystal display panel determining the first memory module of display pattern Selection and call or the second memory module
Data to drive each pixel to light.Such as when the liquid crystal display panel is 3D printing mode, selecting module calls the first storage
Data in module complete liquid resinous solidification to drive each pixel to light；When the LCD display position is normal display mould
When formula, which calls the data in the second memory module, and each pixel is driven to light, and shows the picture for eye recognition.
Optionally, in brightness control system provided in an embodiment of the present invention, selecting module is specifically used for:
Judge whether liquid crystal display panel is used for 3D printing；
When determining liquid crystal display panel for 3D printing, each pixel of data-driven in the first memory module is called
It is bright；
When determining that liquid crystal display panel is used to show, each pixel of data-driven in the second memory module is called to light.
It should be noted that calling process of the selecting module to the data in the first memory module or the second memory module,
It is identical as the principle of the liquid crystal display panel brightness adjusting method provided in above-described embodiment, reference can be made to above-described embodiment carries out in fact
It applies, details are not described herein.
Based on the same inventive concept, the embodiment of the invention provides a kind of 3D printing devices, as shown in Figure 5, comprising: printing
Slot 4, light source 3 and brightness control system as shown in Figure 3 or brightness control system as shown in Figure 4.
Wherein, when the 3D printing device includes brightness control system as shown in Figure 3, which can be used for issuing purple
Outer light, to solidify to liquid resin；When the 3D printing device includes brightness control system as shown in Figure 4, the light source
It can be used for emitting white light；Certain light source may be that can be mentioned according to the difference of brightness control system or the difference of display pattern
For the light source of different colours light, it is not specifically limited herein.
Fig. 5 is a kind of structural schematic diagram of 3D device of the embodiment of the present invention, by using outgoing near ultraviolet short-wave band
Light source 3 and liquid crystal display panel 1 printed as the light source of 3D printing device.3D is used as using liquid crystal display panel 1
Light valve is printed in use, the principle of the 3D printing is that liquid crystal display panel 1 utilizes the outgoing backlight of light source 3, the wanted printed matter of display
It is emitted near ultraviolet short-wave band while the figure in a certain section of part, passes through the aobvious of the liquid crystal display panel 1 of the corresponding figure
Show that position is equipped with the outgoing of near ultraviolet short-wave band, planless viewing area is emitted without near ultraviolet short-wave band, is placed in print cup 4
Photosensitive material, curing molding after photosensitive material is irradiated by the corresponding light of the figure, the photosensitive resin material after solidification
Material is fixed on finished article supporting plate 5.After the figure solidification for completing a section, mobile finished article supporting plate 5, liquid crystal display panel
The figure in the 1 next section of switching is shown, is repeated the figure solidification that aforesaid operations complete another section, is constantly repeated above-mentioned behaviour
Make, to complete entire 3D printing process.
A kind of liquid crystal display panel brightness adjusting method, brightness control system and 3D printing dress provided in an embodiment of the present invention
It sets, which passes through the first grayscale value obtained wait light the corresponding target gamma curve of each pixel in image, and
According to the first grayscale value, and the corresponding relationship of first grayscale value and the second grayscale value pre-established, determine liquid crystal
Show corresponding second grayscale value of each pixel of panel, further according to each pixel in the second grayscale value driving liquid crystal display panel
It is bright, it is imitated to realize using the display that preset gamma curve cured in liquid crystal display panel reaches target gamma curve
Fruit, in the utilization rate for carrying out improving grayscale when 3D printing.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (11)
1. a kind of liquid crystal display panel brightness adjusting method characterized by comprising
Step 1: obtaining image to be lighted determines first ash wait light the corresponding target gamma curve of each pixel in image
Rank value；
Step 2: according to first grayscale value, and first grayscale value pre-established is corresponding with the second grayscale value
Relationship determines corresponding second grayscale value of each pixel of liquid crystal display panel, wherein described first in target gamma curve
The difference of the corresponding brightness value of grayscale value brightness value corresponding with second grayscale value in preset gamma curve is less than default
Threshold value；
Step 3: driving each pixel in the liquid crystal display panel to light according to second grayscale value.
2. liquid crystal display panel brightness adjusting method as described in claim 1, which is characterized in that according to first grayscale
It is worth, and the corresponding relationship of first grayscale value and the second grayscale value pre-established, determines each pixel of liquid crystal display panel
Corresponding second grayscale value, specifically includes:
According to the preset target gamma curve, the brightness value corresponding with first grayscale value is determined；
According to the brightness value and the preset gamma curve, second grayscale value corresponding with the brightness value is determined；
Wherein, the preset gamma curve is the brightness value and second grayscale value being solidificated in the liquid crystal display panel
Corresponding relationship, the target gamma curve are the corresponding relationship of brightness value and the first grayscale value that theoretical calculation obtains.
3. liquid crystal display panel brightness adjusting method as claimed in claim 2, which is characterized in that the target gamma curve is
The linear function determined according to two endpoint values of the preset gamma curve.
4. liquid crystal display panel brightness adjusting method as described in claim 1, which is characterized in that the preset threshold is less than
10%.
5. liquid crystal display panel brightness adjusting method according to any one of claims 1-4, which is characterized in that further include:
Judge whether the liquid crystal display panel is used for 3D printing；
When determining the liquid crystal display panel for 3D printing, perform claim requires the step one in 1 to step 3；
When determining that the liquid crystal display panel is used to show, according to the preset gamma cured in the liquid crystal display panel
Curve directly determines corresponding second grayscale value of each pixel of image to be lighted, and drives the liquid crystal according to second grayscale value
Show that each pixel of panel is lighted.
6. a kind of brightness control system characterized by comprising host computer and liquid crystal display panel；
The host computer includes: the first grayscale value determining module, the second grayscale value determining module and data transmission blocks；
The first grayscale value determining module, it is determining described corresponding wait light each pixel in image for obtaining image to be lighted
First grayscale value of target gamma curve；
The second grayscale value determining module is used for according to first grayscale value, and first grayscale pre-established
The corresponding relationship of value and the second grayscale value, determines corresponding second grayscale value of each pixel of liquid crystal display panel, wherein target
The corresponding brightness value of first grayscale value in gamma curve is corresponding with second grayscale value in preset gamma curve
The difference of brightness value is less than preset threshold；
The data transmission blocks, for second grayscale value to be supplied to the liquid crystal display panel；
The liquid crystal display panel is used to drive each pixel to light according to second grayscale value.
7. brightness control system as claimed in claim 6, which is characterized in that the second grayscale value determining module is specifically used
In:
According to the preset target gamma curve, the brightness value corresponding with first grayscale value is determined；
According to the brightness value and the preset gamma curve, second grayscale value corresponding with the brightness value is determined；
Wherein, the preset gamma curve is the brightness value and second grayscale value being solidificated in the liquid crystal display panel
Corresponding relationship, the target gamma curve are the corresponding relationship of brightness value and the first grayscale value that theoretical calculation obtains.
8. brightness control system as claimed in claim 7, which is characterized in that the target gamma curve is according to described preset
The linear function that two endpoint values of gamma curve determine.
9. a kind of brightness control system characterized by comprising liquid crystal display panel, the liquid crystal display panel include: selection
Module, the first memory module and the second memory module；
First memory module is used to store second in the first grayscale value and preset gamma curve in target gamma curve
The corresponding relationship of grayscale value and the corresponding gray scale voltage of second grayscale value；
Second memory module is used to store pair of the second grayscale value and the brightness value described in the preset gamma curve
It should be related to and the corresponding gray scale voltage of second grayscale value；
The selecting module is used for according to the display pattern of the liquid crystal display panel, the first memory module described in Selection and call or
Each pixel of data-driven in second memory module is lighted.
10. brightness control system as claimed in claim 9, which is characterized in that the selecting module is specifically used for:
Judge whether the liquid crystal display panel is used for 3D printing；
When determining the liquid crystal display panel for 3D printing, call the data-driven in first memory module each described
Pixel is lighted；
When determining that the liquid crystal display panel is used to show, each picture of data-driven in second memory module is called
Vegetarian refreshments is bright.
11. a kind of 3D printing device characterized by comprising print cup, light source and as described in claim any one of 6-8
Brightness control system, or the brightness control system as described in claim 9 or 10.
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