CN106597788B - Adjusting, light-source brightness adjusting, combination brightness method and the system of Color Channel - Google Patents
Adjusting, light-source brightness adjusting, combination brightness method and the system of Color Channel Download PDFInfo
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- CN106597788B CN106597788B CN201611160052.0A CN201611160052A CN106597788B CN 106597788 B CN106597788 B CN 106597788B CN 201611160052 A CN201611160052 A CN 201611160052A CN 106597788 B CN106597788 B CN 106597788B
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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
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
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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
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- H04N9/3155—Modulator illumination systems for controlling the light source
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Abstract
The present invention relates to a kind of adjusting of Color Channel, light-source brightness adjusting, combination brightness method and systems.The adjusting method of above-mentioned Color Channel includes：Obtain the amplification target brightness value obtained after target brightness value amplification setting multiple；Brightness value after the screen with amplification target deviation of luminance values minimum is searched in brightness value after the screen of the brightness current relationship token record of Color Channel, is set as target brightness value after shielding；Wherein, the correspondence after the brightness current relationship record screen before brightness value, screen between brightness value and input current value；Brightness value of the brightness value for the Color Channel on the light source optical path after display unit screen after the screen；Brightness value of the brightness value for the Color Channel before display unit screen before the screen；The corresponding input current value of target brightness value after the screen is searched in the brightness current relationship table, target current value is obtained, the input current of the Color Channel brightness regulating circuit is set as target current value.
Description
Technical field
The present invention relates to technical field of data processing, more particularly to a kind of adjusting of Color Channel, light-source brightness adjust,
Combination brightness method and system.
Background technology
DLP combinations include multiple display units, and each display unit includes its corresponding DLP projector.Light source is
The important component device of DLP projector (digital light processing projector), brightness directly affect aobvious where DLP projector
Show the display effect of unit.The light source of DLP projector includes R (red), G (green) and three Color Channels of B (indigo plant), passes through difference
Adjusting these three Color Channels can make corresponding light source generate different light, realize corresponding projection and display.Each face of light source
The brightness of chrominance channel is usually determined by the size of current of corresponding color channel, is become by the electric current of the adjusting circuit of certain Color Channel
Greatly, the brightness of the Color Channel also becomes larger therewith.In order to ensure the brightness of the display unit corresponding to DLP projector, ensure phase
The display effect of DLP combinations is answered, needs accurately to adjust the light-source brightness of the DLP projector.
Traditional scheme needs to adjust the brightness of each Color Channel of light source manually, to ensure respective display unit and entire spelling
The display effect of wall is connect, regulative mode is complex, easily influences corresponding adjusting efficiency.
Invention content
Based on this, it is necessary to when carrying out the brightness regulation of DLP projector for traditional scheme, regulative mode is complex,
Corresponding the technical issues of adjusting efficiency is easily influenced, provides a kind of adjusting of Color Channel, light-source brightness is adjusted, combination brightness
Method and system.
A kind of adjusting method of Color Channel, includes the following steps：
Obtain the amplification target brightness value obtained after target brightness value amplification setting multiple；
It is searched and the amplification target brightness value in brightness value after the screen recorded in the luminance-current relation table of Color Channel
Brightness value after the screen of deviation minimum is set as target brightness value after screen；Wherein, brightness after the luminance-current relation table record screen
Correspondence before value, screen between brightness value and input current value；Brightness value is after display unit screen after the screen
The brightness value of the Color Channel on light source optical path；Brightness value is the Color Channel before display unit screen before the screen
Brightness value；
The corresponding input current value of target brightness value after the screen is searched in the luminance-current relation table, obtains mesh
Current value is marked, the input current of Color Channel brightness regulating circuit is set as target current value.
A kind of regulating system of Color Channel, including：
First acquisition module, for obtaining the amplification target brightness value obtained after target brightness value amplification setting multiple；
Second acquisition module, for searched in brightness value after the screen that is recorded in the luminance-current relation table of Color Channel with
Brightness value after the screen of the amplification target deviation of luminance values minimum is set as target brightness value after screen；Wherein, the luminance-current
Correspondence after relation table record screen before brightness value, screen between brightness value and input current value；Brightness value is after the screen
The brightness value of the Color Channel on light source optical path after display unit screen；Brightness value is in display unit screen before the screen
The brightness value of the Color Channel before curtain；
Searching module, for searching the corresponding input of target brightness value after the screen in the luminance-current relation table
Current value obtains target current value, and the input current of Color Channel brightness regulating circuit is set as target current value.
The adjusting method and system of above-mentioned Color Channel can be put according to what is obtained after target brightness value amplification setting multiple
Big target brightness value searches target brightness value after corresponding screen, and then described in the luminance-current relation table of Color Channel
The corresponding target current value of target brightness value after above-mentioned screen is searched in luminance-current relation table, so as to which above-mentioned Color Channel is bright
The input current that degree adjusts circuit is set as target current value, makes the corresponding brightness value of the Color Channel before respective display unit screen
For target brightness value, the brightness regulation process of above-mentioned Color Channel is effectively simplified, and has higher adjusting efficiency.
A kind of light-source brightness adjusting method, includes the following steps：
Obtain the corresponding R channel brightness values of light source, G channel brightness values and channel B brightness value；
The corresponding R channel currents value of the R channel brightness values, institute are obtained according to the adjusting method of above-mentioned Color Channel respectively
State the corresponding G channel currents value of G channel brightness values and the corresponding channel B current value of the channel B brightness value；
The input current that R channel luminances are adjusted to circuit is set as R channel current values, and G channel luminances are adjusted circuit
Input current is set as G channel current values, and the input current of channel B brightness regulating circuit is set as channel B current value.
A kind of light-source brightness regulating system, which is characterized in that including：
Third acquisition module, for obtaining the corresponding R channel brightness values of light source, G channel brightness values and channel B brightness value；
4th acquisition module obtains the corresponding R of the R channel brightness values respectively for the regulating system of above-mentioned Color Channel
Channel current value, the corresponding G channel currents value of G channel brightness values and the corresponding channel B electric current of the channel B brightness value
Value；
First adjustment module, the input current for R channel luminances to be adjusted to circuit are set as R channel current values, G are led to
The input current of road brightness regulating circuit is set as G channel current values, and the input current that B channel luminances are adjusted to circuit is set
For channel B current value.
Above-mentioned light-source brightness adjusting method and system can use the brightness regulation scheme of above-mentioned Color Channel to be projected
The adjusting of the corresponding brightness of each Color Channel of machine light source effectively increases the adjusting efficiency during light-source brightness is adjusted, is adjusted
The brightness of section has higher accuracy.
A kind of combination brightness method, includes the following steps：
The corresponding light-source brightness of each display unit of combination is adjusted using above-mentioned light-source brightness adjusting method, makes the spelling
The brightness for connecing each display unit of wall is consistent.
A kind of combination brightness system, including：
Second adjustment module, it is corresponding for adjusting each display unit of combination using above-mentioned light-source brightness regulating system
Light-source brightness, the brightness for making each display unit of the combination are consistent.
It is single to adjust each display of combination using above-mentioned light-source brightness regulation scheme for above-mentioned combination brightness method and system
The corresponding brightness of member, can make the brightness of each display unit of combination reach strict conformance, on the basis for improving adjusting efficiency
On, the brightness regulation effect of each display unit of combination is effectively increased, so as to improve the display effect of combination.
Description of the drawings
Fig. 1 is the adjusting method flow chart of the Color Channel of one embodiment；
Fig. 2 is that the target current value in one embodiment practical application generates system structure diagram
Fig. 3 is the regulating system structure diagram of the Color Channel of one embodiment；
Fig. 4 is the adjusting method flow chart of the Color Channel of one embodiment；
Fig. 5 is the regulating system structure diagram of the Color Channel of one embodiment.
Specific embodiment
The adjusting of Color Channel to the present invention, light-source brightness adjust, combination brightness method and are below in conjunction with the accompanying drawings
The specific embodiment of system is described in detail.
With reference to figure 1, Fig. 1 show the adjusting method flow chart of the Color Channel of one embodiment, includes the following steps：
S11 obtains the amplification target brightness value obtained after target brightness value amplification setting multiple；
(R channels, G lead to corresponding color channel before above-mentioned target brightness value display unit screen where corresponding DLP projector
Road or channel B) need brightness value to be achieved.Above-mentioned setting multiple can according to the brightness regulation precision of DLP projector light source into
Row setting, it is generally the case that could be provided as the arbitrary value between 1 to 3000, can also list accordingly be shown according to DLP projector
Ratio before member screen after brightness and screen between brightness sets above-mentioned setting multiple.
S12, lookup is bright with the amplification target in brightness value after the screen of the luminance-current relation table record of Color Channel
Brightness value after the screen of angle value deviation minimum is set as target brightness value after screen；Wherein, after the luminance-current relation table record screen
Correspondence before brightness value, screen between brightness value and input current value；Brightness value is in display unit screen after the screen
The brightness value of the Color Channel on light source optical path afterwards；Brightness value is that the color is led to before display unit screen before the screen
The brightness value in road；
It is corresponding bright that its can be pre-set before above-mentioned steps for any one Color Channel of DLP projector light source
Degree-current relationship table.After above-mentioned luminance-current relation table record corresponding color channel adjusts each input current value of circuit and shields
Correspondence before brightness value, screen between brightness value a, it is generally the case that input current value is with bright after unique corresponding screen
Angle value.The input current value of luminance-current relation table record can include the maximum input electricity that corresponding color channel adjusts circuit
With a certain smaller electricity between flow valuve and minimum input current value and above-mentioned maximum input current value and minimum input current value
The input current value that flow valuve interval sampling obtains, i.e., a current value sequence from minimum input current value to maximum input current value
It arranges, one smaller current value interval of difference between two current values of arbitrary neighborhood in the electric current value sequence, between above-mentioned current value
Every can be configured according to corresponding brightness regulation precision, for example be set as 0.1 ampere of equivalence.
S13 searches the corresponding input current value of target brightness value after the screen in the luminance-current relation table, obtains
To target current value, the input current of Color Channel brightness regulating circuit is set as target current value.
The adjusting method of Color Channel provided in this embodiment obtains after can amplifying setting multiple according to target brightness value
Amplification target brightness value, target brightness value after corresponding screen, Jin Er are searched in the luminance-current relation table of Color Channel
The corresponding target current value of target brightness value after above-mentioned screen is searched in the luminance-current relation table, so as to which above-mentioned color be led to
The input current of road brightness regulating circuit is set as target current value, and the Color Channel is corresponding bright before making respective display unit screen
Angle value is target brightness value, and the brightness regulation process of above-mentioned Color Channel is effectively simplified, and has higher adjusting efficiency.
In one embodiment, above-mentioned luminance-current relation table include will before the screen brightness value amplification setting multiple after
Amplification brightness value；
The process of amplification target brightness value obtained after target brightness value amplification setting multiple that obtains includes：
Obtained in brightness value before the screen recorded in the luminance-current relation table of Color Channel and the object brightness deviation most
Brightness value before small screen obtains shielding preceding target brightness value；
The corresponding amplification brightness value of target brightness value before the screen is searched in the luminance-current relation table, is put
Big target brightness value.
In the present embodiment, obtained in brightness value first before the screen of the luminance-current relation table of Color Channel record and institute
Target brightness value before the screen of object brightness deviation minimum is stated, then obtains the corresponding amplification target brightness of target brightness value before above-mentioned screen
Value can weaken the influence that respective sources or display screen error band come, and improve target brightness value after follow-up acquired screen
Accuracy.
In one embodiment, the amplification target brightness value obtained after above-mentioned acquisition target brightness value amplification setting multiple
Before process, further include：
A, the corresponding luminance-current relation table of the Color Channel is established, is recorded in the luminance-current relation table defeated
Enter electric current value sequence；
Above-mentioned input current value sequence can record the maximum input current value and minimum that corresponding color channel adjusts circuit
It is adopted between input current value and above-mentioned maximum input current value and minimum input current value with a certain smaller current value interval
The input current value that sample obtains, if the current value of input current value sequence is according to from greatly to small or arrange from as low as big sequence
Row then differ a smaller current value interval, above-mentioned electricity between two current values of arbitrary neighborhood in the input current value sequence
Flow valuve interval can be configured according to corresponding brightness regulation precision, for example be set as 0.1 ampere of equivalence.
B, the input current of the adjusting circuit of the Color Channel is set as selected in the input current value sequence
Current value；
Under normal conditions, above-mentioned selected current value can be first current value in input current value sequence, obtain
After brightness value is recorded with brightness value before screen after to the corresponding screen of above-mentioned first current value, it can obtain successively in order defeated
Brightness value is recorded with brightness value before screen after entering the corresponding screen of each current value of other in electric current value sequence.
C, the corresponding brightness value of the Color Channel measured on the light source optical path after display unit screen is obtained, is obtained
Brightness value after the corresponding screen of the selected current value；
Above-mentioned steps can measure the Color Channel using luminance sensor on the light source optical path after display unit screen
Corresponding brightness value.
D, the corresponding brightness value of Color Channel of the measurement before display unit screen is obtained, obtains the selected current value
Brightness value before corresponding screen；
Above-mentioned steps can utilize brightness measurement instrument (screen surface of such as display unit) before display unit screen to survey
Measure the corresponding brightness value of the Color Channel.Such as using chroma meter CL-200 reference instruments, above-mentioned CL-200 supports to measure light
Tristimulus values, coloration, aberration, correlated colour temperature and the illumination in source.This instrument can pass through the Intelligent treatments such as Serial Port Line and control PC
Equipment is connected, and above-mentioned Intelligent treatment equipment can read the numbers such as the tristimulus values of measurement light source of CL-200 by serial port drive
According to progress respective handling.
E, after in the luminance-current relation table by the screen brightness value and screen before brightness value it is corresponding with selected current value
Record；
Brightness value after screen in luminance-current relation table, brightness value, input current value three's corresponding record before screen, according to
Wherein some parameter can inquire other corresponding two parameters of the parameter, can be upper such as according to target brightness value after screen
It states and the corresponding input current value of target brightness value (i.e. target current value) after the screen is searched in luminance-current relation table.
F, the step of repeating B to E is obtained in input current value sequence respectively after the corresponding screen of each input current value
Brightness value before brightness value and screen, and by brightness value corresponding record before brightness value after input current value, screen and screen in the brightness-electricity
In flow relation table.
Above-mentioned steps can obtain each input current successively according to the record sequence of current value in input current value sequence
It is worth after corresponding screen brightness value before brightness value and screen, to ensure after above-mentioned screen having in brightness value acquisition process before brightness value and screen
Sequence.
As one embodiment, above-mentioned steps F exists brightness value corresponding record before brightness value after input current value, screen and screen
After in the luminance-current relation table, it can also include：
The brightness ratio after brightness value and screen between brightness value before each group screen is obtained, obtains multiple brightness ratios；
Maximum value and minimum value are searched in multiple brightness ratios, obtains ratio maximum and ratio minimum；
The arbitrary value setting multiple being determined as between the ratio maximum and ratio minimum.
The setting multiple is determined as the arbitrary value between the ratio maximum and ratio minimum by the present embodiment, can
It, can be with so that obtained amplification target brightness value is more nearly brightness value after corresponding screen after target brightness value amplification setting multiple
The accuracy of brightness value after screen acquired in improving, so as to improve the accuracy for subsequently setting corresponding input current.
As one embodiment, above-mentioned steps F exists brightness value corresponding record before brightness value after input current value, screen and screen
After in the luminance-current relation table, it can also include：
Brightness value amplification setting multiple after each screen that luminance-current relation table is recorded respectively, obtains bright after each screen
The corresponding amplification brightness value of angle value；
The corresponding amplification brightness value of brightness value after the screen is recorded in the luminance-current relation table.
Brightness value amplification setting multiple, makes amplified after each screen that the present embodiment records luminance-current relation table
Brightness value has better accuracy after screen, records after the screen that brightness value is corresponding to be put in the luminance-current relation table
Big brightness value can further improve the integrality of above-mentioned luminance-current relation table.
In practical applications, the adjusting method of above-mentioned Color Channel can be generated by target current value shown in Fig. 2 is
System performs, and target current value generation system shown in Fig. 2 includes chroma meter CL200, the control for installing automatic testing software
PC (personal computer), embeded processor (embedded software built in combination) and luminance sensor, above-mentioned color illumination
Intrinsic brilliance (brightness value before screen) before the screen of meter CL200 measurement display screens, and the intrinsic brilliance of measurement is sent to control PC；It is bright
Brightness value (SensorR, SensorG, SensorB) after the screen on light source optical path after degree sensor measurement display screen, will survey
Brightness value is sent to control PC by embeded processor after the screen of amount；PC is controlled according to brightness value after above-mentioned intrinsic brilliance and screen
Corresponding target current value is obtained, the process of above-mentioned acquisition target current value includes：
It is carried out in projector's production process, whole flow process is by controlling PC automatic testing softwares to control, automatic testing software
The electric current driving value of three light sources is set from small to large, obtains the value SensorR of the luminance sensor under each current value,
Intrinsic brilliance CL200_X, CL200_Y, the CL200_ for the light source that SensorG, SensorB and brightness measurement module measure
Z.Since intrinsic brilliance is close to linear relationship, it is possible to which the processing that intrinsic brilliance is set to multiple by amplification converts to obtain
SensorR ', SensorG ', SensorB ' (the corresponding amplification brightness value of tri- Color Channels of R, G, B), and result is sent out
It is sent to plug in software module and is stored in the memory of embedded software and (only store the value of luminance sensor actually read
SensorR, SensorG, SensorB and value SensorR ' SensorG ', SensorB ' for being converted into actual light source brightness)
It is the example for obtaining red R data that table 1, which is shown, and only adjusting DAC_R, (R channel luminances adjust the input electricity of circuit
Stream), the DAC_G input current of circuit (G channel luminances adjust), and DAC_B (input current of channel B brightness regulating circuit),
Due to light source characteristic, CL200_X can represent the brightness of red light source.It, need to be by reality in order to be approached with collected SensorR
A fixed coefficient (can above-mentioned coefficient be set as 5 here) is multiplied by brightness, by value control close with sensor values
In the range of.Channel B is identical with G channels, and SensorG ' is obtained by CL200_Y, and SensorB ' is obtained by CL200_Z.
Table 1
| DAC_R | sensorR | sensorG | sensorB | CL200_X | CL200_Y | CL200_Z | SensorR’ |
| 15 | 0 | 0 | 0 | 0 | 0 | ||
| 35 | 244 | 0 | 0 | 37.663 | 188 | ||
| 55 | 641 | 0 | 0 | 98.055 | 490 | ||
| 75 | 1007 | 0 | 0 | 154.26 | 771 | ||
| 95 | 1342 | 0 | 0 | 206.312 | 1032 | ||
| 115 | 1644 | 0 | 0 | 252.692 | 1263 | ||
| 135 | 1898 | 0 | 0 | 294.849 | 1474 |
Associated control software setting need intrinsic brilliance value (CL200_X, CL200_Y, CL200_Z or SensorR,
SensorG, SensorB) to the embedded software of each projector, the embedded software of each projector is looked for by the value of setting
To the value SensorR, SensorG, SensorB of corresponding luminance sensor and electric current driving value DAC_R, DAC_G, DAC_B,
Intermediate data are obtained using the method for difference.
As shown in table 2, if it is 1400 that target, which needs to be adjusted to SensorR ', according to the method for difference, DAC_R is obtained,
SensorR according to this relational expression of 115/DAC_R==1644/SensorR==1263/1400, can be calculated：
DAC_R=127, sensorR=1822, above-mentioned DAC_R are just the target current value of light source R channels, can be set according to DAC_R
Above-mentioned R channel luminances adjust the input current of circuit.
Table 2
DAC_R will be set as the value 127 arrived calculated by embedded software first, acquire the value of luminance sensor
SensorR determines whether 1822 or close to 1822, and DAC_R is added one according to collected value or subtracts one, until finding most
Close to 1822 DAC value, brightness value is 1400 before screen at this time.After each projector all so calculates, the expression of all units
The SensorR ' of intrinsic brilliance is adjusted to required value, SensorG ', SensorB before screen ' it is also identical mode.
The collected Sensor values of luminance sensor are converted into the intrinsic brilliance value of light source by the above process, are solved
The brightness adjustment in whole wall rgb light source is one by the problem of same brightness light source reading is inconsistent caused by Sensor individual differences
It causes.
With reference to figure 3, Fig. 3 show the regulating system structure diagram of the Color Channel of one embodiment, including：
First acquisition module 11, for obtaining the amplification target brightness value obtained after target brightness value amplification setting multiple；
Second acquisition module 12, for being searched in brightness value after the screen that is recorded in the luminance-current relation table of Color Channel
With brightness value after the screen of the amplification target deviation of luminance values minimum, it is set as target brightness value after screen；Wherein, the brightness-electricity
Correspondence after flow relation token record screen before brightness value, screen between brightness value and input current value；Brightness value after the screen
Brightness value for the Color Channel on the light source optical path after display unit screen；Brightness value is in display unit before the screen
The brightness value of the Color Channel before screen；
Searching module 13, it is corresponding defeated for target brightness value after searching the screen in the luminance-current relation table
Enter current value, obtain target current value, the input current of Color Channel brightness regulating circuit is set as target current value.
The regulating system of Color Channel provided by the invention and the adjusting method one of Color Channel provided by the invention are a pair of
Should, it is suitable for Color Channel in the technical characteristic and advantage of the embodiment elaboration of the adjusting method of the Color Channel
Regulating system embodiment in, hereby give notice that.
With reference to figure 4, Fig. 4 show the light-source brightness adjusting method flow chart of one embodiment, includes the following steps：
S21 obtains the corresponding R channel brightness values of light source, G channel brightness values and channel B brightness value；
Above-mentioned R channel brightness values, G channel brightness values and channel B brightness value are respectively display unit where DLP projector
Before screen brightness value to be achieved, the i.e. target brightness value of R channels, G are needed in each Color Channel (R channels, G channels and channel B)
The target brightness value of channel and the target brightness value of channel B.
S22 obtains the corresponding R channel currents of the R channel brightness values respectively according to the adjusting method of above-mentioned Color Channel
Value, the corresponding G channel currents value of G channel brightness values and the corresponding B channel currents value of the channel B brightness value；
Above-mentioned steps can obtain institute with R channel brightness value target brightness values by the adjusting method of above-mentioned Color Channel
State the corresponding R channel currents value of R channel brightness values (target current value of R channels)；With G channel brightness value target brightness values, lead to
The adjusting method for crossing above-mentioned Color Channel obtains the corresponding G channel currents value (target current of G channels of the G channel brightness values
Value)；With channel B brightness value target brightness value, the channel B brightness value is obtained by the adjusting method of above-mentioned Color Channel and is corresponded to
Channel B current value (target current value of channel B).So that the input current that R channel luminances are adjusted to circuit is set as R channels
Current value, the input current that G channel luminances are adjusted to circuit is set as G channel current values, by channel B brightness regulating circuit
Input current is set as channel B current value, the efficiency that each Color Channel of light source carries out bright light adjusting is effectively increased, so as to carry
The efficiency that high light-source brightness is adjusted.
S23, the input current that the R channel luminances are adjusted to circuit is set as R channel current values, and the G channels is bright
The input current that degree adjusts circuit is set as G channel current values, and the input current of the channel B brightness regulating circuit is set as
Channel B current value.
Light-source brightness adjusting method provided in this embodiment can use the brightness regulation scheme of above-mentioned Color Channel to carry out
The adjusting of the corresponding brightness of each Color Channel of light source of projector effectively increases the adjusting efficiency during light-source brightness is adjusted,
The brightness adjusted has higher accuracy.
With reference to figure 5, Fig. 5 show the light-source brightness regulating system structure diagram of one embodiment, including：
Third acquisition module 21, for obtaining the corresponding R channel brightness values of light source, G channel brightness values and B channel luminances
Value；
4th acquisition module 22, for obtaining the R channel luminances respectively according to the regulating system of the Color Channel
It is worth corresponding R channel currents value, the corresponding G channel currents value of G channel brightness values and the corresponding B of the channel B brightness value
Channel current value；
First adjustment module 23, the input current for R channel luminances to be adjusted to circuit is set as R channel current values, by G
The input current that channel luminance adjusts circuit is set as G channel current values, and the input current of channel B brightness regulating circuit is set
For channel B current value.
Light-source brightness regulating system provided by the invention is corresponded with light-source brightness adjusting method provided by the invention,
The technical characteristic and advantage that the embodiment of the light-source brightness adjusting method illustrates are suitable for what light-source brightness was adjusted
In embodiment, hereby give notice that.
A kind of combination brightness method, includes the following steps：
The corresponding light-source brightness of each display unit of combination is adjusted using above-mentioned light-source brightness adjusting method, makes the spelling
The brightness for connecing each display unit of wall is consistent.
In above-mentioned combination brightness method.It can be by the corresponding same color channel of each display unit light source of combination
Input current is set as same target current value, for example, the corresponding R channel luminances of each display unit light source are adjusted electricity
The input current on road is set as R channel current values, and the corresponding G channel luminances of each display unit light source are adjusted to the input of circuit
Electric current is set as G channel current values, and the input current of the corresponding channel B brightness regulating circuit of each display unit light source is set
For channel B current value, brightness is completely the same before making the screen of each display unit display screen of combination, can be each to avoid manual adjustment
The technical issues of a display unit brightness may cause each display unit brightness inconsistent effectively increases the brightness tune of combination
Save effect.
Combination brightness method provided by the invention adjusts each display of combination using above-mentioned light-source brightness regulation scheme
The corresponding brightness of unit can make the brightness of each display unit of combination reach strict conformance, in the base for improving adjusting efficiency
On plinth, the brightness regulation effect of each display unit of combination is effectively increased, so as to improve the display effect of combination.
A kind of combination brightness system, including：
Second adjustment module, it is corresponding for adjusting each display unit of combination using above-mentioned light-source brightness regulating system
Light-source brightness, the brightness for making each display unit of the combination are consistent.
Combination brightness system provided by the invention is corresponded with combination brightness method provided by the invention, described
The technical characteristic and advantage that the embodiment of combination brightness method illustrates are suitable for the implementation of combination brightness system
In example, hereby give notice that.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of adjusting method of Color Channel, which is characterized in that include the following steps：
Obtain the amplification target brightness value obtained after target brightness value amplification setting multiple；
It is searched and the amplification target deviation of luminance values in brightness value after the screen recorded in the luminance-current relation table of Color Channel
Brightness value after minimum screen is set as target brightness value after screen；Wherein, brightness value, screen after the luminance-current relation table record screen
Correspondence between preceding brightness value and input current value；Brightness value is the light source light after display unit screen after the screen
The brightness value of the Color Channel on the road；Brightness of the brightness value for the Color Channel before display unit screen before the screen
Value；
The corresponding input current value of target brightness value after the screen is searched in the luminance-current relation table, obtains target electricity
The input current of Color Channel brightness regulating circuit is set as target current value by flow valuve.
2. the adjusting method of Color Channel according to claim 1, which is characterized in that the luminance-current relation table packet
It includes the amplification brightness value after brightness value amplification setting multiple before the screen；
The process of amplification target brightness value obtained after target brightness value amplification setting multiple that obtains includes：
It is obtained in brightness value before the screen recorded in the luminance-current relation table of Color Channel and object brightness deviation minimum
Brightness value before screen obtains shielding preceding target brightness value；
The corresponding amplification brightness value of target brightness value before the screen is searched in the luminance-current relation table, obtains amplification mesh
Mark brightness value.
3. the adjusting method of Color Channel according to claim 1, which is characterized in that the acquisition target brightness value amplification
Before the process of amplification target brightness value obtained after setting multiple, further include：
A, the corresponding luminance-current relation table of the Color Channel is established, the record input electricity in the luminance-current relation table
Flow valuve sequence；
B, the selected electric current being set as the input current of the adjusting circuit of the Color Channel in the input current value sequence
Value；
C, the corresponding brightness value of the Color Channel measured on the light source optical path after display unit screen is obtained, is obtained described
Brightness value after the corresponding screen of selected current value；
D, the corresponding brightness value of Color Channel of the measurement before display unit screen is obtained, the selected current value is obtained and corresponds to
Screen before brightness value；
E, after in the luminance-current relation table by the screen brightness value and screen before brightness value it is corresponding with selected current value remember
Record；
F, the step of repeating B to E obtains brightness after the corresponding screen of each input current value in input current value sequence respectively
Brightness value before value and screen, and brightness value corresponding record before brightness value after input current value, screen and screen is closed in the luminance-current
It is in table.
4. the adjusting method of Color Channel according to claim 3, which is characterized in that the step F by input current value,
After brightness value and brightness value corresponding record before screen are in the luminance-current relation table after screen, further include：
The brightness ratio after brightness value and screen between brightness value before each group screen is obtained, obtains multiple brightness ratios；
Maximum value and minimum value are searched in multiple brightness ratios, obtains ratio maximum and ratio minimum；
The arbitrary value setting multiple being determined as between the ratio maximum and ratio minimum.
5. the adjusting method of Color Channel according to claim 4, which is characterized in that the step F by input current value,
After brightness value and brightness value corresponding record before screen are in the luminance-current relation table after screen, further include：
Brightness value amplification setting multiple, obtains brightness value after each screen after each screen that luminance-current relation table is recorded respectively
Corresponding amplification brightness value；
The corresponding amplification brightness value of brightness value after the screen is recorded in the luminance-current relation table.
6. a kind of regulating system of Color Channel, which is characterized in that including：
First acquisition module, for obtaining the amplification target brightness value obtained after target brightness value amplification setting multiple；
Second acquisition module, for searched in brightness value after the screen that is recorded in the luminance-current relation table of Color Channel with it is described
Brightness value after the screen of amplification target deviation of luminance values minimum is set as target brightness value after screen；Wherein, the luminance-current relationship
Correspondence after token record screen before brightness value, screen between brightness value and input current value；Brightness value is aobvious after the screen
Show the brightness value of the Color Channel on the light source optical path after unit screen；Brightness value is before display unit screen before the screen
The brightness value of the Color Channel；
Searching module, for searching the corresponding input current of target brightness value after the screen in the luminance-current relation table
Value, obtains target current value, the input current of Color Channel brightness regulating circuit is set as target current value.
7. a kind of light-source brightness adjusting method, which is characterized in that include the following steps：
Obtain the corresponding R channel brightness values of light source, G channel brightness values and channel B brightness value；
The adjusting method of Color Channel according to claim 1 to 5 any one obtains the R channel brightness values pair respectively
The R channel current values answered, the corresponding G channel currents value of G channel brightness values and the corresponding channel B of the channel B brightness value
Current value；
The input current that R channel luminances are adjusted to circuit is set as R channel current values, and G channel luminances are adjusted to the input of circuit
Electric current is set as G channel current values, and the input current of channel B brightness regulating circuit is set as channel B current value.
8. a kind of light-source brightness regulating system, which is characterized in that including：
Third acquisition module, for obtaining the corresponding R channel brightness values of light source, G channel brightness values and channel B brightness value；
4th acquisition module, for the regulating system of Color Channel according to claim 6, to obtain the R channels respectively bright
The corresponding R channel currents value of angle value, the corresponding G channel currents value of G channel brightness values and the channel B brightness value are corresponding
Channel B current value；
First adjustment module, the input current for R channel luminances to be adjusted to circuit is set as R channel current values, and G channels is bright
The input current that degree adjusts circuit is set as G channel current values, and the input current of channel B brightness regulating circuit is set as B leads to
Road current value.
9. a kind of combination brightness method, which is characterized in that include the following steps：
The corresponding light-source brightness of each display unit of combination is adjusted using the light-source brightness adjusting method described in claim 7,
The brightness for making each display unit of the combination is consistent.
10. a kind of combination brightness system, which is characterized in that including：
Second adjustment module, it is single for adjusting each display of combination using light-source brightness regulating system according to any one of claims 8
The corresponding light-source brightness of member, the brightness for making each display unit of the combination are consistent.
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| CN112188133B (en) * | 2020-09-29 | 2023-10-17 | 北京小米移动软件有限公司 | Video acquisition method and device, electronic equipment and storage medium |
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