CN108549194A - The control method and crystal projection screen of crystal projection screen - Google Patents
The control method and crystal projection screen of crystal projection screen Download PDFInfo
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- CN108549194A CN108549194A CN201810556578.3A CN201810556578A CN108549194A CN 108549194 A CN108549194 A CN 108549194A CN 201810556578 A CN201810556578 A CN 201810556578A CN 108549194 A CN108549194 A CN 108549194A
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- Prior art keywords
- projection screen
- crystal projection
- light intensity
- light transmittance
- ambient light
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
Abstract
The present invention provides a kind of control method and crystal projection screen of crystal projection screen, including：Obtain the ambient light intensity at crystal projection screen；Obtain default light transmittance corresponding with ambient light intensity；Judge whether the absolute difference of current panel light transmittance and default light transmittance is more than preset difference value threshold value；If it does, it is default light transmittance to adjust current panel light transmittance.As it can be seen that implementing the control method and crystal projection screen of crystal projection screen provided by the invention, the complexity that liquid crystal uses can be reduced, promotes display effect, and the viewing experience of user can also be optimized.
Description
Technical field
The present invention relates to multimedia technology fields, in particular to a kind of control method and liquid crystal of crystal projection screen
Projection screen.
Background technology
With the continuous development of science and technology, what liquid crystal display developed in display field is getting faster.Among these, liquid crystal
Display industry half of the country is occupied with its good controllability, safety and versatility.However, it has been found in practice that liquid crystal
When display screen receiving projection is shown, often because the influence of natural light, leads to the display effect of liquid crystal display
It is poor, to increase the display effect of liquid crystal display, and also reduce user's viewing experience.
Invention content
In view of the above problems, it the present invention provides a kind of control method of crystal projection screen and crystal projection screen, can drop
The complexity that low liquid crystal uses promotes display effect, and can also optimize the viewing experience of user.
To achieve the goals above, the present invention adopts the following technical scheme that：
In a first aspect, the present invention provides a kind of control method of crystal projection screen, the method includes：
Obtain the ambient light intensity at the crystal projection screen；
Obtain default light transmittance corresponding with the ambient light intensity；
Judge whether the absolute difference of current panel light transmittance and the default light transmittance is more than preset difference value threshold value；
If it does, the adjustment current panel light transmittance is the default light transmittance.
As an alternative embodiment, in the first aspect, the ambient light obtained at the crystal projection screen
Intensity, including：
The ambient light sensor being arranged by the crystal projection screen frame obtains the ambient light at the crystal projection screen
Intensity.
It is described to be arranged by the crystal projection screen frame as an alternative embodiment, in the first aspect
Ambient light sensor obtains the ambient light intensity at the crystal projection screen, including：
The multiple ambient light sensors being arranged by the crystal projection screen frame obtain the multiple of the crystal projection screen
Optical power values；
Obtain the maximum light intensity numerical value and minimum light intensity numerical value in the multiple Optical power values；
It is default to judge whether the difference between the maximum light intensity numerical value and the minimum light intensity numerical value is less than or equal to
Threshold limit value；
If it is less than equal to, determine the multiple Optical power values mean values be ambient light intensity.
As an alternative embodiment, in the first aspect, the method further includes：
If the difference between the maximum light intensity numerical value and the minimum light intensity numerical value is more than the preset threshold
Threshold value determines that the maximum light intensity numerical value is ambient light intensity.
As an alternative embodiment, in the first aspect, the acquisition is corresponding with the ambient light intensity pre-
If light transmittance, including：
Default light transmittance corresponding with the ambient light intensity is obtained by preset setting tables of data；The setting data
Table includes each ambient light intensity and each default light transmittance corresponding with each ambient light intensity.
Second aspect, the present invention provides a kind of crystal projection screen, the crystal projection screen includes ambient light sensor, liquid
The controller and liquid-crystalline glasses of brilliant projection screen, wherein
The ambient light sensor is set on the frame of the liquid-crystalline glasses, for obtaining at the crystal projection screen
Ambient light intensity；
The controller of the crystal projection screen is electrically connected with the ambient light sensor, for obtaining and the environmental light intensity
Spend corresponding default light transmittance；
The controller of the crystal projection screen is additionally operable to judge the difference of current panel light transmittance and the default light transmittance
Whether absolute value is more than preset difference value threshold value；
The controller of the crystal projection screen is additionally operable to when the absolute difference is more than the preset difference value threshold value,
It is the default light transmittance to adjust the current panel light transmittance.
As an alternative embodiment, the controller of the crystal projection screen includes memory, processor and drive
Dynamic circuit, wherein
The memory, for storing the ambient light intensity at the crystal projection screen；
The processor, for obtaining default light transmittance corresponding with the ambient light intensity；
The processor is additionally operable to judge that the absolute difference of the current panel light transmittance and the default light transmittance is
It is no to be more than preset difference value threshold value；
The driving circuit adjusts the current panel light transmission for changing driving voltage by built-in regulation and control software
Rate is the default light transmittance.
As an alternative embodiment, the ambient light sensor, is specifically used for obtaining at the crystal projection screen
Multiple Optical power values；
The controller of the crystal projection screen is additionally operable to obtain the maximum light intensity numerical value in the multiple ambient light intensity
With minimum light intensity numerical value, and it is less than or equal in the difference of the maximum light intensity numerical value and the minimum light intensity numerical value default
When threshold limit value, determine that the mean values of the multiple Optical power values are the environmental light intensity at the crystal projection screen
Degree.
The third aspect, the present invention provides a kind of computer equipment, including memory and processor, the memory is used
In storage computer program, the processor runs the computer program so that the computer equipment executes first aspect public affairs
The control method for some or all of crystal projection screen opened.
Fourth aspect, the present invention provides a kind of computer readable storage mediums, are stored in above computer equipment
Used computer program.
According to the control method and crystal projection screen of crystal projection screen provided by the invention, which preferentially obtains
Ambient light intensity at crystal projection screen；Then default light transmittance corresponding with ambient light intensity is obtained again.Further, the liquid
Brilliant projection screen can judge whether the absolute difference of current panel light transmittance and default light transmittance is more than preset difference value threshold value；Such as
Fruit is more than, and shows that the current panel light transmittance of the crystal projection screen at this time is undesirable, then it is pre- to adjust the current panel light transmittance
If light transmittance, so that the crystal projection screen reaches ideal light transmittance under the Optical power values.It is provided as it can be seen that implementing the present invention
Crystal projection screen control method and crystal projection screen, can reduce the complexity that liquid crystal uses, promote display effect, and
And the viewing experience of user can also be optimized.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of the scope of the invention.
Fig. 1 is a kind of flow diagram of the control method for crystal projection screen that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the control method of crystal projection screen provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of structural schematic diagram for crystal projection screen that the embodiment of the present invention three provides；
Fig. 4 is a kind of another structural schematic diagram for crystal projection screen that the embodiment of the present invention three provides.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
For the problems of the prior art, the present invention provides a kind of control method of crystal projection screen and crystal projections
Screen, the crystal projection screen first first obtain the ambient light intensity at crystal projection screen；Then it obtains again corresponding with ambient light intensity
Default light transmittance.Further, which can judge that the difference of current panel light transmittance and default light transmittance is absolute
Whether value is more than preset difference value threshold value；If it does, showing that the current panel light transmittance of the crystal projection screen at this time is undesirable, then
It is default light transmittance to adjust the current panel light transmittance, so that the crystal projection screen reaches ideal saturating under the Optical power values
Light rate.As it can be seen that implementing the control method and crystal projection screen of crystal projection screen provided by the invention, it can reduce what liquid crystal used
Complexity promotes display effect, and can also optimize the viewing experience of user；Meanwhile implementing this embodiment, additionally it is possible to
Artificial manipulation is avoided, the complexity that crystal projection screen uses is reduced.Above-mentioned technical method can also use relevant soft
Part or hardware are realized, to no longer adding to repeat in this present embodiment.It is described below by embodiment.
Embodiment 1
Referring to Fig. 1, Fig. 1 is a kind of flow signal of the control method for crystal projection screen that the embodiment of the present invention one provides
Figure.As shown in Figure 1, the control method of the crystal projection screen includes the following steps：
Ambient light intensity at S101, acquisition crystal projection screen.
In the present embodiment, the main body for executing all steps can be crystal projection screen, can be the control of crystal projection screen
Device or control box, can also be with the relevant electronic equipment of crystal projection screen, in this regard, not being limited in any way in the present embodiment.
In the present embodiment, crystal projection screen is that the liquid crystal film changed by voltage transmittance and glass substrate are constituted.
In the present embodiment, ambient light sensor is set to the frame of crystal projection screen, with control box or other controllers
Electrical connection or signal connection, the control box and controller can control crystal projection screen.
As an alternative embodiment, obtain automatically controlled parameter from the controller of crystal projection screen, and from automatically controlled ginseng
Current panel light transmittance is obtained in number.
Implement this embodiment, can simply and effectively get accurately current panel light transmittance, avoid measurement
The error brought.
S102, acquisition default light transmittance corresponding with ambient light intensity.
In the present embodiment, ambient light intensity has multiple, and default light transmittance has multiple, and ambient light intensity and default light transmission
Rate corresponds.
As an alternative embodiment, default light transmittance corresponding with ambient light intensity is obtained, including：
Using ambient light intensity and the light transmittance calculation formula to prestore as foundation, calculate corresponding default for ambient light intensity
Light transmittance.
Implement this embodiment, the computing capability that the controller of crystal projection screen can be relied on powerful calculates pre- in real time
If light transmittance, avoids the case where default light transmittance to prestore is not inconsistent with environment and occur, the standard for improving data acquisition and comparing
True property.
S103, judge whether the absolute difference of current panel light transmittance and default light transmittance is more than preset difference value threshold value,
If it does, executing step S104；If it is lower, terminating this flow.
In the present embodiment, current panel light transmittance is the automatically controlled parameter of crystal projection screen.
As an alternative embodiment, if it is less, storing current time and absolute difference to storage device.
Implement this embodiment, database can be formed by record, and corresponding automatic tune is carried out according to database
It is whole, the intelligent of crystal projection screen can be improved.
As a kind of further alternative embodiment, calculated according to the current time of storage and absolute difference and intelligence
Method obtains distinctive intelligent algorithm.
Implement this embodiment, the big data which can be got up by oneself accumulation carries out deduction meter
It calculates, to obtain one's own intelligent algorithm, and in subsequent work operation, effective and rapid can automatically adjust
Section light transmittance improves the effect of display to save a large amount of power consumption.
S104, the current panel light transmittance of adjustment are default light transmittance.
As an alternative embodiment, after adjusting current panel light transmittance and being default light transmittance, repeat
Step S101.
Implement this embodiment, current panel light transmittance can be adjusted in real time.
The control method for the crystal projection screen that the present embodiment is provided mainly solves the environment of crystal projection screen local environment
The problem of light variation influences crystal projection screen result of broadcast.For example, when ambient light is stronger, need to increase current panel saturating
Light rate when ambient light is weaker, can reduce current panel light transmittance, avoid the projection content point of crystal projection screen too dazzling,
The user experience is improved spends.
As shown in Figure 1, the controller or crystal projection screen of crystal projection screen first obtain the environmental light intensity at crystal projection screen
Degree；Then default light transmittance corresponding with ambient light intensity is obtained again.Further, which can judge currently to shield
Whether the absolute difference of face light transmittance and default light transmittance is more than preset difference value threshold value；If it does, showing the liquid crystal at this time
The current panel light transmittance of projection screen is undesirable, then it is default light transmittance to adjust the current panel light transmittance, so that the liquid crystal is thrown
Shadow screen reaches ideal light transmittance under the Optical power values, wherein the process adjusted, is carried out by automatically controlled mode.It can
To see, this kind of method of adjustment can reduce the complexity that liquid crystal uses so that crystal projection screen is more intelligent, automates, and
And manual operation is avoided, to improve display performance and display effect, and then optimize user experience.
Embodiment 2
Referring to Fig. 2, Fig. 2 is a kind of flow signal of the control method of crystal projection screen provided by Embodiment 2 of the present invention
Figure.As shown in Fig. 2, the control method of the crystal projection screen includes the following steps：
S201, multiple light intensity that crystal projection screen is obtained by multiple ambient light sensors that crystal projection screen frame is arranged
Number of degrees value.
It is thrown as an alternative embodiment, obtaining liquid crystal by the ambient light sensor that crystal projection screen frame is arranged
Multiple Optical power values of shadow screen may include：
Multiple light intensity number of degrees of crystal projection screen are obtained by multiple ambient light sensors that crystal projection screen frame is arranged
Value, wherein each ambient light sensor obtains an Optical power values.
Implement this embodiment, the Optical power values of multiple positions can be got by multiple ambient light sensors,
To improve the diversity of data, and then improve the accuracy of adjustment.
In the present embodiment, executive agent can be control box, which includes：Circuit module (drives comprising circuit power
Dynamic model block), storage unit (i.e. storage needs the ad data that plays, also preservation management data) and microprocessor.
S202, the maximum light intensity numerical value in the multiple Optical power values of acquisition and minimum light intensity numerical value.
S203, judge whether the difference between maximum light intensity numerical value and minimum light intensity numerical value is less than or equal to preset threshold
Threshold value, if it is less than equal to execution step S204 and step S206~step S208；If it does, execution step S205~
Step S208.
S204, determine that the mean values of multiple Optical power values are ambient light intensity.
S205, determine that maximum light intensity numerical value is ambient light intensity.
Implementation steps S202~step S205, it can be determined that go out and whether there is splitting area on crystal projection screen, divide if existing
Light area, then adjust light transmittance, and good display is realized in the brightness to reach bigger, if splitting area is not present, is averaged micro-
Light transmittance is adjusted, good display effect is realized to reach the brightness being more suitable for.
S206, default light transmittance corresponding with ambient light intensity is obtained by preset setting tables of data；Set tables of data
Include each ambient light intensity and each default light transmittance corresponding with each ambient light intensity.
S207, judge whether the absolute difference of current panel light transmittance and the default light transmittance is more than preset difference value threshold
Value, if it does, executing step S208；If it is less than or be equal to, terminate this flow.
In the present embodiment, preset setting tables of data is stored in the memory of crystal projection screen, and use when
Time is obtained and is used.
As an alternative embodiment, judging that the difference of current panel light transmittance and the default light transmittance is absolute
Whether value is more than before preset difference value threshold value, can also include：
According to the difference threshold that default light transmittance calculates, and determine that the difference threshold is preset difference value threshold value.
Implement this embodiment, preset difference value threshold value can expand allowable error range with the increase of luminous intensity, to
Realization adjusts more intelligent effect in the case of intense light irradiation.
Can be the 3% of default light transmittance in preset difference value threshold value in the present embodiment, the 3% of the light transmittance is current screen
The error that face light transmittance allows, if it exceeds the controller of this error, microprocessor or crystal projection screen will assign instruction
The power driving device of start-up circuit module changes output voltage, to achieve the purpose that adjust crystal projection screen light transmittance.
S208, the adjustment current panel light transmittance are the default light transmittance.
As shown in Fig. 2, the controller or crystal projection screen of crystal projection screen may determine that whether deposited on liquid crystal display
In bright dark line of demarcation, and corresponding light transmittance is executed according to judging result and is adjusted；Meanwhile obtaining and setting throwing in setting tables of data
Rate is penetrated, the time of calculating is avoided, improves efficiency；In addition, judging that the difference of current panel light transmittance and default light transmittance is
It is no mutually far short of what is expected, if it is, adjusting current panel light transmittance, can be carried out by automatically controlled mode.As it can be seen that this kind of adjustment side
Method can quickly and easily adjust the light transmittance of crystal projection screen, to improve the intelligence and automation of crystal projection screen, and
And display performance and display effect can be improved, and then optimize user experience to avoid manual operation.
Embodiment 3
Referring to Fig. 3, Fig. 3 is a kind of structural schematic diagram for crystal projection screen that the embodiment of the present invention three provides.Such as Fig. 3 institutes
Show, which includes ambient light sensor 301, the controller 302 of crystal projection screen and liquid-crystalline glasses 303, wherein：
Ambient light sensor 301 is set on the frame of liquid-crystalline glasses 303, for obtaining the ambient light at crystal projection screen
Intensity.
The controller 302 of crystal projection screen is electrically connected with ambient light sensor 301, corresponding with ambient light intensity for obtaining
Default light transmittance.
The controller 302 of crystal projection screen is additionally operable to judge that the difference of current panel light transmittance and default light transmittance is absolute
Whether value is more than preset difference value threshold value.
The controller 302 of crystal projection screen is additionally operable to, when absolute difference is more than preset difference value threshold value, adjust current screen
Face light transmittance is default light transmittance.
Referring to Fig. 4, Fig. 4 is a kind of another structural schematic diagram for crystal projection screen that the embodiment of the present invention three provides.Its
In.Crystal projection screen shown in Fig. 4 is that crystal projection screen as shown in Figure 3 optimizes.As shown in figure 4, liquid crystal is thrown
The controller 302 of shadow screen includes memory 3021, processor 3022 and driving circuit 3023, wherein：
Memory 3021, for storing the ambient light intensity at crystal projection screen.
Processor 3022, for obtaining default light transmittance corresponding with ambient light intensity.
Processor 3022 is additionally operable to judge whether the absolute difference of current panel light transmittance and default light transmittance is more than in advance
If difference threshold.
Driving circuit 3023, for being to adjust current panel light transmittance by built-in regulation and control software change driving voltage
Default light transmittance.
As an alternative embodiment, ambient light sensor 301, is specifically used for obtaining multiple at crystal projection screen
Optical power values.
The controller 302 of crystal projection screen, be additionally operable to obtain maximum light intensity numerical value in multiple ambient light intensities with most
Small Optical power values, and when the difference of maximum light intensity numerical value and minimum light intensity numerical value is less than or equal to preset threshold threshold value
It waits, determines that the mean values of multiple Optical power values are the ambient light intensity at crystal projection screen.
As it can be seen that this kind of method of adjustment can quickly and easily adjust the light transmittance of crystal projection screen, thrown to improve liquid crystal
The intelligence and automation of shadow screen, and the complexity that liquid crystal uses can be reduced to avoid manual operation, promote display effect
Fruit, and the viewing experience of user can also be optimized.
Described in unit described in the present embodiment with module corresponding can execute embodiment 1 and embodiment 2
Method, to no longer adding to repeat in this present embodiment.
In addition, the present invention also provides a kind of computer equipment, which may include smart phone, tablet electricity
Brain, vehicle-mounted computer, intelligent wearable device etc..The computer equipment includes memory and processor, and memory can be used for storing meter
Calculation machine program, processor is by running computer program, and to make, computer equipment executes the above method or above-mentioned liquid crystal is thrown
The function of modules in shadow screen.
Memory may include storing program area and storage data field, wherein storing program area can storage program area, at least
Application program (such as sound-playing function, image player function etc.) needed for one function etc.；Storage data field can store root
Created data (such as audio data, phone directory etc.) etc. are used according to computer equipment.In addition, memory may include height
Fast random access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device,
Or other volatile solid-state parts.
The present embodiment additionally provides a kind of computer storage media, for storing the calculating used in above computer equipment
Machine program.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart in attached drawing and structure
Figure show the device of multiple embodiments according to the present invention, method and computer program product system frame in the cards
Structure, function and operation.In this regard, each box in flowchart or block diagram can represent a module, section or code
A part, the part of module, section or code includes one or more for implementing the specified logical function holds
Row instruction.It should also be noted that in the realization method as replacement, the function of being marked in box can also be to be different from attached drawing
Middle marked sequence occurs.For example, two continuous boxes can essentially be basically executed in parallel, they sometimes can also
It executes in the opposite order, this is depended on the functions involved.It is also noted that each of structure chart and/or flow chart
The combination of box and the box in structure chart and/or flow chart can use function or the dedicated base of action as defined in executing
It realizes, or can be realized using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each function module or unit in each embodiment of the present invention can integrate and to form an independence
Part, can also be modules individualism, can also two or more modules be integrated to form an independent part.
If function is realized in the form of software function module and when sold or used as an independent product, can be stored
In a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words to existing
There is the part for the part or the technical solution that technology contributes that can be expressed in the form of software products, the computer
Software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be intelligent hand
Machine, personal computer, server or network equipment etc.) execute all or part of step of each embodiment method of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of control method of crystal projection screen, which is characterized in that the method includes：
Obtain the ambient light intensity at the crystal projection screen；
Obtain default light transmittance corresponding with the ambient light intensity；
Judge whether the absolute difference of current panel light transmittance and the default light transmittance is more than preset difference value threshold value；
If it does, the adjustment current panel light transmittance is the default light transmittance.
2. control method according to claim 1, which is characterized in that the ambient light obtained at the crystal projection screen
Intensity, including：
The ambient light sensor being arranged by the crystal projection screen frame obtains the ambient light intensity at the crystal projection screen.
3. control method according to claim 2, which is characterized in that it is described by the crystal projection screen frame be arranged
Ambient light sensor obtains the ambient light intensity at the crystal projection screen, including：
The multiple ambient light sensors being arranged by the crystal projection screen frame obtain multiple light intensity of the crystal projection screen
Number of degrees value；
Obtain the maximum light intensity numerical value and minimum light intensity numerical value in the multiple Optical power values；
Judge whether the difference between the maximum light intensity numerical value and the minimum light intensity numerical value is less than or equal to preset threshold
Threshold value；
If it is less than equal to, determine the multiple Optical power values mean values be ambient light intensity.
4. control method according to claim 3, which is characterized in that the method further includes：
If the difference between the maximum light intensity numerical value and the minimum light intensity numerical value is more than the preset threshold threshold value,
Determine that the maximum light intensity numerical value is ambient light intensity.
5. control method according to claim 1, which is characterized in that the acquisition is corresponding with the ambient light intensity pre-
If light transmittance, including：
Default light transmittance corresponding with the ambient light intensity is obtained by preset setting tables of data；In the setting tables of data
Including each ambient light intensity and each default light transmittance corresponding with each ambient light intensity.
6. a kind of crystal projection screen, which is characterized in that the crystal projection screen includes the control of ambient light sensor, crystal projection screen
Device and liquid-crystalline glasses processed, wherein
The ambient light sensor is set on the frame of the liquid-crystalline glasses, for obtaining the environment at the crystal projection screen
Luminous intensity；
The controller of the crystal projection screen is electrically connected with the ambient light sensor, for obtaining and the ambient light intensity pair
The default light transmittance answered；
The controller of the crystal projection screen is additionally operable to judge that the difference of current panel light transmittance and the default light transmittance is absolute
Whether value is more than preset difference value threshold value；
The controller of the crystal projection screen is additionally operable to when the absolute difference is more than the preset difference value threshold value, adjustment
The current panel light transmittance is the default light transmittance.
7. crystal projection screen according to claim 6, which is characterized in that the controller of the crystal projection screen includes storage
Device, processor and driving circuit, wherein
The memory, for storing the ambient light intensity at the crystal projection screen；
The processor, for obtaining default light transmittance corresponding with the ambient light intensity；
The processor is additionally operable to judge whether the absolute difference of the current panel light transmittance and the default light transmittance is big
In preset difference value threshold value；
The driving circuit, for being to adjust the current panel light transmittance by built-in regulation and control software change driving voltage
The default light transmittance.
8. crystal projection screen according to claim 6, which is characterized in that
The ambient light sensor is specifically used for obtaining multiple Optical power values at the crystal projection screen；
The controller of the crystal projection screen, be additionally operable to obtain maximum light intensity numerical value in the multiple ambient light intensity with most
Small Optical power values, and it is less than or equal to preset threshold in the difference of the maximum light intensity numerical value and the minimum light intensity numerical value
When threshold value, determine that the mean values of the multiple Optical power values are the ambient light intensity at the crystal projection screen.
9. a kind of computer equipment, which is characterized in that including memory and processor, the memory is for storing computer
Program, the processor runs the computer program so that the computer equipment is executed according to any in claim 1 to 5
The control method of crystal projection screen described in.
10. a kind of computer readable storage medium, which is characterized in that it is stored in the computer equipment described in claim 9
Used computer program.
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Application publication date: 20180918 |