CN104981077B - Color temperature control method, colour temperature control device and electronic equipment - Google Patents
Color temperature control method, colour temperature control device and electronic equipment Download PDFInfo
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Abstract
Provide a kind of color temperature control method, colour temperature control device and electronic equipment.The color temperature control method includes：The environmental parameter in environment where acquisition electronic equipment；Determine to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter；Judge whether the current colour temperature of the electronic equipment is consistent with the target colour temperature, and obtain a judging result；When the judging result indicates that the current colour temperature is inconsistent with the target colour temperature, the display driving integrated circuit adjusts the current colour temperature of the electronic equipment based on target colour temperature.In the technical solution of the embodiment of the present disclosure, the colour temperature of display device can be conveniently and accurately adjusted, so as to improve the usage experience of user.
Description
Technical field
This disclosure relates to electronic technology field, more particularly, to a kind of color temperature control method, colour temperature control device and electricity
Sub- equipment.
Background technology
Colour temperature is the important parameter in the index and display for representing that light source light spectrum quality is most general.Colour temperature is used for table
Show the changes in temperature degree of light source, the light source of different-colour feels it is different to the changes in temperature of people.In the Energy distribution of low color temperature light sources
In, red radiation proportion is more, and light source is shown as " warm light "；In Energy distribution in high color temperature light source, shared by indigo plant radiation
Ratio it is relatively more, light source is shown as " cold light ".
In the existing such as electronic equipment of lamps and lanterns, display, colour temperature can be fixed or can be by user hand
It adjusts dynamicly.Since color temperature parameters range is larger, and understood unlike the property parameters in image model by user, therefore
Ordinary user generally can not accurately adjust color temperature parameters, this will directly affect the precision of display effect, and reduce user
Visual experience, even with the deteriorating vision at family.
It is therefore desirable to be able to the colour temperature of electronic equipment is accurately adjusted, to improve the usage experience of user.
Invention content
The embodiment of the present disclosure provides a kind of color temperature control method, colour temperature control device and electronic equipment, can facilitate
And accurately adjustment shows the colour temperature of equipment, so as to improve the usage experience of user.
In a first aspect, a kind of color temperature control method is provided, applied to an electronic equipment.The electronic equipment includes display and drives
Dynamic integrated circuit.The color temperature control method may include：Obtain the environmental parameter in the environment where the electronic equipment；It is based on
The environmental parameter determines to be suitable for the target colour temperature of the electronic equipment；Judge the electronic equipment current colour temperature whether
It is consistent with the target colour temperature, and obtain a judging result；When the judging result indicates the current colour temperature and the target
When colour temperature is inconsistent, the display driving integrated circuit adjusts the current colour temperature of the electronic equipment based on target colour temperature.
With reference to first aspect, in a kind of realization method of first aspect, the ring obtained where the electronic equipment
Environmental parameter in border may include at least one of following steps：Obtain the brightness letter in the environment where the electronic equipment
Breath；Obtain the colouring information in the environment where the electronic equipment.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, described in the acquisition
The luminance information in environment where electronic equipment may include：Obtain geographical location information, the temporal information of the electronic equipment
And weather forecast information；Based on where geographical location information, temporal information and weather forecast information the deduction electronic equipment
Luminance information in environment.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the electronic equipment
It may include display device, it is described to determine that the target colour temperature for being suitable for the electronic equipment may include based on the environmental parameter：
Obtain the contrast of the display device；Determine to be suitable for the electronic equipment based on the environmental parameter and the contrast
Target colour temperature.
With reference to first aspect and its above-mentioned realization method, it is described based on described in another realization method of first aspect
Environmental parameter determines that the target colour temperature for being suitable for the electronic equipment may include：Obtain pre-set colour temperature look-up table；It searches
Suo Suoshu colour temperatures look-up table obtains colour temperature corresponding with the environmental parameter；The target is set based on the colour temperature searched
Colour temperature.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the electronic equipment
It may include display screen, the current color thermometer bulb that the display driving integrated circuit adjusts the electronic equipment based on target colour temperature includes：
The current colour temperature of electronic equipment is adjusted to by the target colour temperature by the white balance for changing the display screen.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the display driving
The current colour temperature that integrated circuit adjusts the electronic equipment based on the target colour temperature may include：Prompt message is exported to user,
The prompt message manually adjusts colour temperature or adjust automatically colour temperature for prompting；The response that user is received for the prompt message is grasped
Make；When the response operation received indicates adjust automatically colour temperature, the current colour temperature of electronic equipment is automatically adjusted to described
Target colour temperature.
Second aspect provides a kind of colour temperature control device.The colour temperature control device may include：Environment sensing unit is used
Environmental parameter in the environment where sensing the electronic equipment；Processor determines to be suitable for based on the environmental parameter
The target colour temperature of the electronic equipment judges whether the current colour temperature of the electronic equipment is consistent with the target colour temperature, and obtains
Obtain a judging result；Display driving integrated circuit, when the judging result indicates the current colour temperature with the target colour temperature not
Adjust the current colour temperature of the electronic equipment when consistent based on target colour temperature, and one aobvious to drive based on the current colour temperature after adjustment
Display screen.
With reference to second aspect, in a kind of realization method of second aspect, the environment sensing unit may include light sensing
Device, the OPTICAL SENSORS sense at least one of luminance information and colouring information in the environment where the electronic equipment.
With reference to second aspect and its above-mentioned realization method, in another realization method of second aspect, the environment sensing
Unit may include：Communication module, for obtaining the geographical location information of the electronic equipment, temporal information and weather forecast letter
Breath；Processing module, for based on where geographical location information, temporal information and weather forecast information the deduction electronic equipment
Luminance information in environment.
With reference to second aspect and its above-mentioned realization method, in another realization method of second aspect, the processor can
By operating the target colour temperature to determine to be suitable for the electronic equipment as follows：Obtain the contrast of the display device；It is based on
The environmental parameter and the contrast determine to be suitable for the target colour temperature of the electronic equipment.
With reference to second aspect and its above-mentioned realization method, in another realization method of second aspect, the processor can
By operating the target colour temperature to determine to be suitable for the electronic equipment as follows：Obtain pre-set colour temperature look-up table；Search
The colour temperature look-up table obtains colour temperature corresponding with the environmental parameter；The aim colour is set based on the colour temperature searched
Temperature.
With reference to second aspect and its above-mentioned realization method, in another realization method of second aspect, the display driving
The current colour temperature of electronic equipment can be adjusted to the target colour temperature by integrated circuit by changing the white balance of the display screen.
With reference to second aspect and its above-mentioned realization method, in another realization method of second aspect, the colour temperature control
Device may also include input unit and output device.The display driving integrated circuit generation user exports prompt message, this is carried
Show information for prompt manually adjust colour temperature or adjust automatically colour temperature；The output device exports prompt message to user, described
Input unit receives user and is operated for the response of the prompt message；The display driving integrated circuit is in the response received
Operation indicates is adjusted to the target colour temperature during adjust automatically colour temperature, automatically by the current colour temperature of electronic equipment.
The third aspect provides a kind of electronic equipment, including：Display screen；Colour temperature control device as described above, for controlling
Make the display screen.
In the technical solution of the above-mentioned color temperature control method of the embodiment of the present disclosure, colour temperature control device and electronic equipment,
Its target colour temperature is determined based on the environment of electronic equipment, and automatically adjusts the electronics using display driving integrated circuit and sets
Standby current colour temperature allows to conveniently and accurately adjust the colour temperature of display equipment, so as to improve the usage experience of user.
Description of the drawings
It, below will be in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the embodiment of the present disclosure
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the disclosure
Example is applied, for those of ordinary skill in the art, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the schematic diagram for schematically illustrating the application scenarios according to the embodiment of the present disclosure；
Fig. 2 is to schematically illustrate typical colour temperature collection of illustrative plates；
Fig. 3 is the flow chart for schematically illustrating the color temperature control method according to the embodiment of the present disclosure；
Fig. 4 is to schematically illustrate the different display pictures for changing colour temperature based on white balance point；
Fig. 5 is the structure diagram for schematically illustrating the colour temperature control device according to the embodiment of the present disclosure；
Fig. 6 is the structure diagram for the environment sensing unit for schematically illustrating the colour temperature control device in Fig. 5；
Fig. 7 is the structure diagram for schematically illustrating the electronic equipment according to the embodiment of the present disclosure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation describes, it is clear that described embodiment is disclosure part of the embodiment, instead of all the embodiments.
Fig. 1 is the schematic diagram for schematically illustrating the application scenarios according to the embodiment of the present disclosure.As shown in Figure 1, user A exists
Watch the picture shown by electronic equipment 10.For a user, when the light condition of 10 local environment of electronic equipment changes,
The display effect of picture on electronic equipment 10 has very big difference.For example, when the light of the light source 20 in Fig. 1 changes from weak to strong
When, picture that user A can be clearly apparent under decreased light can thicken or even can not distinguish picture in strong light.It is described
Electronic equipment is a kind of display equipment, such as can be television set, monitor, laptop, mobile phone, navigator, media
Player, E-book reader and tablet computer etc..
Colour temperature is the scale for representing that light source is photochromic, and unit is K (Kelvin).The colour temperature of light source is the face by comparing light source
Color comes determining with theoretical hot dark matter radiator.The kelvin degree when color of hot dark matter radiator and light source matches is just
It is the colour temperature of that light source.Colour temperature is defined by absolute black body.When absolute black body radiation and light source visual field spoke
When shooting away exactly the same, the temperature of black matrix just claims the colour temperature of this light source at this time.In the Energy distribution of low color temperature light sources, red radiation phase
To more, commonly referred to as " warm light ".After colour temperature improves, the ratio of the blue radiation in Energy distribution increases, commonly referred to as " cold light ".
Fig. 2 is to schematically illustrate typical colour temperature collection of illustrative plates.The horizontal axis of Fig. 2 is the colour temperature of light source.As shown in Fig. 2, in color
When temperature is 1000K, red tone is typically presented in the image shown by electronic equipment；When colour temperature is 3000K, electronic equipment institute
Yellow tone is typically presented in the image of display；When colour temperature is 5000K, the image shown by electronic equipment typically presents white
Color tone；When colour temperature is 8000K, bluish shades are typically presented in the image shown by electronic equipment；It is in colour temperature
During 10000K, blue color is typically presented in the image shown by electronic equipment.That is, in low colour temperature, electronic equipment
Warm tones is presented, in high color temperature, cool tone is presented in electronic equipment, and when colour temperature is 5000K, electronic equipment is substantially shown very
Real tone.
When showing that the colour temperature of equipment is not suitable with the ambient enviroment of electronic equipment 10, user A can feel that eyes are uncomfortable,
Picture color is untrue.Correspondingly, the display effect of picture can be improved by adjusting the colour temperature of electronic equipment 10, so as to improve
The usage experience of user.The embodiment of the present disclosure is intended to provide a solution and improves the aobvious of picture to suitably adjust colour temperature
Show effect.
Fig. 3 is the flow chart for schematically illustrating the color temperature control method 300 according to the embodiment of the present disclosure.The colour temperature controls
Method 300 for example can be applied to electronic equipment 10 shown in Fig. 1.The electronic equipment 10 may include display driving integrated circuit DDIC and
Display device.The display device is, for example, liquid crystal display, plasma display, Organic Light Emitting Diode (OLED) display screen
Deng.The display driving integrated circuit DDIC provides voltage or current drive signal for the pel array in the display screen.This
Outside, the color temperature control method can be realized in display driving integrated circuit, so as to easily control colour temperature.
As shown in figure 3, the color temperature control method may include：Obtain the environment ginseng in the environment where the electronic equipment
Number (S310)；Determine to be suitable for the target colour temperature (S320) of the electronic equipment based on the environmental parameter；Judge the electricity
Whether the current colour temperature of sub- equipment is consistent with the target colour temperature, and obtains a judging result (S330)；When the judging result
When indicating the current colour temperature and the inconsistent target colour temperature, the display driving integrated circuit is based on target colour temperature and adjusts institute
State the current colour temperature (S340) of electronic equipment.
In S310, it can obtain in the luminance information and colouring information in the environment where the electronic equipment at least
One conduct environmental parameter.
Typically, the picture shown by electronic equipment may have different display effects under different light intensities,
And display effect can be improved by adjusting the colour temperature of electronic equipment.Picture is shown as light becomes strong and is become unclear
Reason is that the brightness increase of environment can cause the contrast of the picture of electronic equipment to decline.Contrast is referred in piece image
The measurement of different brightness levels between most bright white and most dark black.Bigger represent of disparity range compares bigger, disparity range
Smaller representative comparison is smaller.In darkroom, contrast is that brightness under white picture (when most bright) divided by black picture are (most dark
When) under brightness.That is, contrast C R can be calculated by formula below (1) in darkroom：
Wherein, LWIt is the brightness of the white picture in darkroom, LBIt is the brightness of the black picture in darkroom.It is shown in picture
Environment in have bright rather than darkroom in the case of, have the contrast under bright environment that can be counted by formula below (2)
It calculates：
Wherein, LWIt is the brightness of the white picture in darkroom, LBIt is the brightness of the black picture in darkroom, LEIt is that environment is bright
Degree.For example, it is assumed that LWIt is 450 luxs (Lux), LBIt is 1 lux, LEIt is 500 luxs, contrast C R is in darkroom
450, and 1.9 can be become in the environment of 500 luxs.That is, the increase of ambient brightness greatly reduces contrast,
So that display picture fogs.When the contrast of electronic equipment declines, can be shown by adjusting its contrast to improve
Effect.However, the adjusting range of the contrast of electronic equipment is limited.At this point, can by increase the colour temperature of electronic equipment come
Further improve display effect caused by contrast declines to deteriorate.It is excessively high in the contrast of electronic equipment and lead to the eye of viewer
In the case of eyeball stimulates, the colour temperature of electronic equipment can also be reduced to improve display effect.Alternatively, it in practice, can integrate
Ground adjusts the contrast and colour temperature of electronic equipment, to reach best display effect.
In S310, the luminance information in the environment where electronic equipment can be obtained using optical sensor.For example,
It can be to set optical sensor around electronic equipment, and the luminance information measured by optical sensor is supplied to electronic equipment.
In the case of being illuminated in environment where electronic equipment using natural light, can also obtain in the following way electron institute
Luminance information in environment：Obtain geographical location information, temporal information and the weather forecast information of the electronic equipment；Based on ground
Manage the luminance information in the environment where location information, temporal information and weather forecast information infer the electronic equipment.Now
Many electronic equipments have communication function, so as to be readily available the geographical location, temporal information and weather forecast
Etc. information, and correspondingly infer the luminance information in the environment where the electronic equipment.At this point, it does not need to set special light
Sensor measures the luminance information.
Furthermore, it is possible to the colouring information in environment where obtaining electronic equipment is as environmental parameter, particularly in electronics
There are during dominant color in environment residing for equipment.For example, when advertisement display is located in green grassland, if advertisement shown
The colour temperature of device is adjusted to colder tone, then the eyes of viewer are more easily adapted to conform to and receive；When display equipment is located in desert
When, if the tone that the colour temperature of electronic equipment is adjusted to warm up partially, the eyes of viewer are more easily adapted to conform to and receive.
In S320, determine to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter.Joined with environment
For number is the luminance information and colouring information of environment, when the brightness of environment is higher, the colour temperature of electronic equipment can be turned up；
When the brightness of environment is relatively low, the colour temperature of electronic equipment can be turned down；It, can be by electronics when the color of environment is cool tone
The colour temperature of equipment is turned up；When the color of environment is warm tones, the colour temperature of electronic equipment can be turned down.
According to the description above in conjunction with formula (1) and formula (2) it is found that the luminance information of environment can influence the tune of colour temperature
Except section, the contrast of electronic equipment in itself can also influence the adjusting of colour temperature.The contrast of electronic equipment in itself can utilize public affairs
Formula (1) calculates, and depends on the physical property of electronic equipment, and unrelated with the external world.Different display equipment may have not
Same contrast.For example, the contrast of some liquid crystal displays is in 400:In 1 this level, pair of some liquid crystal displays
600 are in than degree:In 1 this level, also the contrast of liquid crystal display can reach 1000:1 this level.Using other
The display equipment of technology can have the contrast of other levels.For example, the extreme dynamic range liquid of part LED backlight technology
Crystal display may have 5000:1 superelevation contrast.Therefore, in S320, can come with reference to the contrast of display device true
Surely it is suitable for the target colour temperature of the electronic equipment.Specifically, the contrast of the display device can be obtained；And based on described
Environmental parameter and the contrast determine to be suitable for the target colour temperature of the electronic equipment.
In the concrete realization, the target colour temperature of electronic equipment can be determined using look-up table mode.For example, in S320
In, pre-set colour temperature look-up table can be obtained；It is corresponding with the environmental parameter to obtain to search for the colour temperature look-up table
Colour temperature；The target colour temperature is set based on the colour temperature searched.In the colour temperature look-up table, form sieve can be utilized
One-to-one relationship between the colour temperature of the luminance information of row environment, the colouring information of environment and electronic equipment.It is set in consideration electronics
In the case of standby contrast determines target colour temperature, in the colour temperature look-up table, can also enumerate the contrast of electronic equipment with
The relationship of target colour temperature.I.e., it is possible to different look-up tables is set for different electronic equipments.It can be by largely testing
To pre-set the colour temperature look-up table.
In addition, different users may have colour temperature different requirements.For example, the elderly may prefer to warm-toned figure
Picture, and young people may prefer to the image of cool tone.During pre-set colour temperature look-up table, it is also contemplated that no
Same user, and for the different user setting different-colour look-up table of electronic equipment.The hobby of each user can according to
Family determines or can also be by counting different crowds during electronic equipment is used according to the historical operation of user
To determine.
Judge whether the current colour temperature of the electronic equipment is consistent with the target colour temperature in S330, and obtain one and judge
As a result.Electronic equipment usually has this parameter setting of colour temperature, and can easily obtain the current colour temperature of electronic equipment.Example
Such as, it may be determined that whether the current colour temperature of electronic equipment is less than one with the absolute value of the difference of target colour temperature determined in S320
Predetermined value.When the absolute value of the difference is less than the predetermined value, it is meant that the current colour temperature of electronic equipment is close to aim colour
Temperature, it may be determined that the current colour temperature of the electronic equipment is consistent with target colour temperature.When the absolute value of the difference is more than or equal to institute
When stating predetermined value, it is meant that the current colour temperature of electronic equipment differs larger target colour temperature, it may be determined that the electronic equipment is worked as
Preceding colour temperature and target colour temperature are inconsistent.The predetermined value is, for example, 20K, 40K, 60K etc., can depend on the colour temperature of electronic equipment
The precision of adjustment and change.When the precision of colour temperature adjustment is higher, the predetermined value is smaller.When the precision of colour temperature adjustment is relatively low
When, the predetermined value is larger.
It is described aobvious when the judging result indicates that the current colour temperature is inconsistent with the target colour temperature in S340
Show that drive integrated circult adjusts the current colour temperature of the electronic equipment based on target colour temperature.When the current colour temperature and the target
When colour temperature is inconsistent, it is meant that the current colour temperature deviates the target colour temperature, so as to need to be adjusted to the current colour temperature
Close or equal to the target colour temperature.
In embodiment of the disclosure, its current colour temperature is adjusted using the display driving integrated circuit of electronic equipment.Such as
Preceding described, the display driving integrated circuit DDIC provides voltage or electric current driving letter for the pel array in the display screen
Number, the current colour temperature of the electronic equipment can be automatically adjusted based on target colour temperature.In addition, in S310 to S330,
Electronic equipment can also automatically determine the target colour temperature, without manual operation.Therefore, integrated electricity is driven with reference to the display
Road enables electronic equipment to automatically carry out colour temperature adjustment.
In S340, the current colour temperature of electronic equipment can be adjusted to described by changing the white balance of the display screen
Target colour temperature.
White balance be exactly tell electronic equipment what be white colour.Electronic equipment is aware of white, can just calculate other
Color.White refers to be reflected into light in human eye since blue, green, red three kinds of coloured light ratios are identical and with certain brightness
The vision response formed.As previously mentioned, colour temperature is higher, it is photochromic more blue；The colour temperature the low photochromic more partially red.White balance can letter
It singly is interpreted as under the conditions of arbitrary colour temperature, the reference white that electronic equipment can be shown.For electronic equipment, colour temperature and white
Balance is closely related parameter.It therefore, can be by changing the white balance of the display screen working as electronic equipment in S340
Preceding colour temperature is adjusted to the target colour temperature.
128 are fifty-fifty set as an example, can be arranged in the reference color temperature from 3000K to 9000K based on white balance
A colour temperature adjusted value.Correspondingly, the Adjustment precision of colour temperature is (9000K-3000K)/128=46.87K.If it manually carries out
Colour temperature adjusts, it is difficult to so accurate.128 colour temperature adjusted values are only example, can also be according to colour temperature adjusting range and adjustment
The requirements such as precision set the colour temperature adjusted value of other numbers, for example, 90,156 etc..
Fig. 4 is to schematically illustrate the different display pictures for changing colour temperature based on white balance point.It is in fig. 4 it is shown that same
Display effect of one picture under a part for 128 color temperature values in the reference color temperature from 3000K to 9000K.This 128
Color temperature value is set based on white balance point.As shown in figure 4, figure right side it is intermediate be that image under typical colour temperature is shown, on
Side shows that the image under a part of color temperature value in 63 groups of color temperature values from typical colour temperature to low colour temperature is shown in the direction of arrow
Show, can be seen that color of image according to the instruction direction of upside arrow gradually turns yellow from Natural color.Downside shows in the direction of arrow
Image under a part of color temperature value gone out in 64 groups of color temperature values from typical colour temperature to high color temperature is shown, according to downside arrow
Instruction direction can be seen that color of image and gradually become blue from Natural color.
In the case of colour temperature is manually adjusted, user needs to find the color temperature parameters in electronic equipment, and correspondingly adjusts,
This is complicated for operation, it is impossible to reach high accuracy.Moreover, because human eye has unique adaptability, human eye cannot be sent out sometimes
The variation of existing colour temperature, so as to cannot accurately carry out colour temperature adjustment.During the adjustment, the eyes of user need to undergo different
Display under colour temperature, this is easy to cause the discomfort of eyes of user.However, in technical solution in the disclosure, display is utilized to drive
Dynamic integrated circuit adjusts colour temperature, can participate in without user or less participation in the case of accurately adjust electronic equipment
Colour temperature adjusts.
In order to meet the diversified demand of user, user's right to choose is can also impart in S340, to select adjustment colour temperature
Mode.For example, in S340, prompt message can be exported to user, the prompt message for prompt to manually adjust colour temperature or
Adjust automatically colour temperature；The response that user is received for the prompt message operates；Automatic tune is indicated in the response operation received
During whole colour temperature, the current colour temperature of electronic equipment is automatically adjusted to the target colour temperature；It is indicated in the response operation received
When manually adjusting colour temperature, current colour temperature is adjusted according to the instruction of user.
In the technical solution of the above-mentioned color temperature control method of the embodiment of the present disclosure, determined based on the environment of electronic equipment
Its target colour temperature, and using the current colour temperature of the display driving integrated circuit adjustment electronic equipment, it is convenient and accurate to allow to
Ground adjusts the colour temperature of display device, so as to improve the usage experience of user.
Fig. 5 is the structure diagram for schematically illustrating the colour temperature control device 500 according to the embodiment of the present disclosure.The colour temperature control
Device 500 processed for example can be applied to electronic equipment 10 shown in Fig. 1.
As shown in figure 5, the colour temperature control device 500 may include：Environment sensing unit 510 sets for sensing the electronics
Environmental parameter in the environment at standby place；Processor 520 determines to be suitable for the electronic equipment based on the environmental parameter
Target colour temperature judges whether the current colour temperature of the electronic equipment is consistent with the target colour temperature, and obtains a judging result；It is aobvious
Show drive integrated circult 530, mesh is based on when the judging result indicates that the current colour temperature is inconsistent with the target colour temperature
Mark the current colour temperature that colour temperature adjusts the electronic equipment, and a display screen is driven based on the current colour temperature after adjustment.
Environment sensing unit 510 can be obtained in luminance information and colouring information in the environment where the electronic equipment
It is at least one be used as the environmental parameter.
Typically, the picture shown by electronic equipment may have different display effects under different light intensities,
And display effect can be improved by adjusting the colour temperature of electronic equipment.Picture is shown as light becomes strong and is become unclear
Reason is that the brightness increase of environment can cause the contrast of the picture of electronic equipment to decline.The reason of specific, may refer to above
The associated description carried out with reference to formula (1) and formula (2).When the contrast of electronic equipment declines, can be compared by adjusting it
It spends to improve display effect.However, the adjusting range of the contrast of electronic equipment is limited.It at this point, can be by increasing electronics
The colour temperature of equipment deteriorates further to improve display effect caused by contrast declines.It is excessively high in the contrast of electronic equipment and lead
In the case of the eye irritation for causing viewer, the colour temperature of electronic equipment can also be reduced to improve display effect.Alternatively, putting into practice
In, the contrast and colour temperature of electronic equipment can be synthetically adjusted, to reach best display effect.
Fig. 6 is the structure diagram for the environment sensing unit 510 for schematically illustrating the colour temperature control device in Fig. 5.
Environment sensing unit 510 may include optical sensor 511.The optical sensor 511 is sensed where the electronic equipment
At least one of luminance information and colouring information in environment.For example, can be to set optical sensor around electronic equipment
511, and the luminance information measured by optical sensor 511 is supplied to electronic equipment.
In the case of being illuminated in the environment where electronic equipment using natural light, the optical sensor 511, ring are replaced
Border sensing unit 510 can also take other manner obtain electron institute environment in luminance information.As an example, environment sense
Surveying unit 510 may include：Communication module 512, for obtaining the geographical location information of the electronic equipment, temporal information and weather
Forecast information；Processing module 513 infers the electronics for being based on geographical location information, temporal information and weather forecast information
The luminance information in environment where equipment.Present many electronic equipments have communication function, so as to be readily available
The information such as the geographical location, temporal information and weather forecast, and correspondingly infer in the environment where the electronic equipment
Luminance information.At this point, it does not need to set special optical sensor to measure the luminance information.In Figure 5, by communication module
512 and processing module 513 be shown located at environment sensing unit 510, and actually they can be located at colour temperature control device 500
Except.In the case of being realized using the existing module of electronic equipment, communication module and processing module are couple to colour temperature control
Device 500 processed.The communication module 512 is such as may include antenna and signal transceiver.The processing module 513 is for example
It can be realized by means of the application program in electronic equipment.
In addition, the colouring information that environment sensing unit 510 can be obtained in the environment where electronic equipment is joined as environment
Number, particularly there are during dominant color in the environment residing for electronic equipment.For example, when advertisement display is located in green grassland
When, if the colour temperature of advertisement display is adjusted to colder tone, the eyes of viewer are more easily adapted to conform to and receive；When aobvious
When showing that equipment is located in desert, if the tone that the colour temperature of electronic equipment is adjusted to warm up partially, the eyes of viewer are easier
It adapts to and receives.Environment sensing unit 510 can obtain the face in the environment where electronic equipment using image capture module 514
Color information.For example, using the camera collection image in image capture module, environmental colors are distinguished by processing.Similarly, scheme
As acquisition module 514 may be actually located at except colour temperature control device 500, and can for example utilize the existing mould of electronic equipment
Block is realized.
Processor 520 determines to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter.Joined with environment
For number is the luminance information and colouring information of environment, when the brightness of environment is higher, processor 520 can be by electronic equipment
Colour temperature is turned up；When the brightness of environment is relatively low, processor 520 can turn down the colour temperature of electronic equipment；When the color of environment is
During cool tone, the colour temperature of electronic equipment can be turned up for processor 520；When the color of environment is warm tones, processor 520 can
The colour temperature of electronic equipment to be turned down.
According to the description above in conjunction with formula (1) and formula (2) it is found that the luminance information of environment can influence the tune of colour temperature
Except section, the contrast of electronic equipment in itself can also influence the adjusting of colour temperature.The contrast of electronic equipment in itself can utilize public affairs
Formula (1) calculates, and depends on the physical property of electronic equipment, and unrelated with the external world.Different display equipment may have not
Same contrast.For example, the contrast of some liquid crystal displays is in 400:In 1 this level, pair of some liquid crystal displays
600 are in than degree:In 1 this level, also the contrast of liquid crystal display can reach 1000:1 this level.Using other
The display equipment of technology can have the contrast of other levels.For example, the extreme dynamic range liquid of part LED backlight technology
Crystal display may have 5000:1 superelevation contrast.Therefore, processor 520 can come true with reference to the contrast of display device
Surely it is suitable for the target colour temperature of the electronic equipment.Specifically, processor 520 can obtain the contrast of the display device；
And determine to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter and the contrast.
In the concrete realization, processor 520 can determine the target colour temperature of electronic equipment using look-up table mode.Example
Such as, the processor leads to 520 excessively following operations to determine to be suitable for the target colour temperature of the electronic equipment：It obtains pre-set
Colour temperature look-up table；The colour temperature look-up table is searched for obtain colour temperature corresponding with the environmental parameter；Based on the color searched
Temperature sets the target colour temperature.In the colour temperature look-up table, the luminance information of environment, environment can be enumerated using form
Color information and electronic equipment colour temperature between one-to-one relationship.Target colour temperature is determined in the contrast for considering electronic equipment
In the case of, in the colour temperature look-up table, the contrast of electronic equipment and the relationship of target colour temperature can also be enumerated.I.e., it is possible to
Different look-up tables is set for different electronic equipments.The colour temperature can be pre-set by largely testing to search
Table.
In addition, different users may have colour temperature different requirements.For example, the elderly may prefer to warm-toned figure
Picture, and young people may prefer to the image of cool tone.During pre-set colour temperature look-up table, it is also contemplated that no
Same user, and for the different user setting different-colour look-up table of electronic equipment.The hobby of each user can according to
Family determines or can also be by counting different crowds during electronic equipment is used according to the historical operation of user
To determine.
Processor 520 judges whether the current colour temperature of the electronic equipment is consistent with the target colour temperature, and obtains one and sentence
Disconnected result determines to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter.Electronic equipment usually has colour temperature
This parameter setting, processor 520 can easily obtain the current colour temperature of electronic equipment.Processor 520 can determine electronics
Whether the current colour temperature of equipment and the absolute value of the difference of identified target colour temperature are less than a predetermined value.It is exhausted when the difference
When being less than the predetermined value to value, it is meant that the current colour temperature of electronic equipment can determine institute close to target colour temperature, processor 520
The current colour temperature for stating electronic equipment is consistent with target colour temperature.When the absolute value of the difference is more than or equal to the predetermined value, meaning
The current colour temperature that taste electronic equipment differs larger target colour temperature, and processor 520 can determine the current color of the electronic equipment
Temperature is inconsistent with target colour temperature.The predetermined value is, for example, 20K, 40K, 60K etc., and the colour temperature that can depend on electronic equipment adjusts
Precision and change.When the precision of colour temperature adjustment is higher, the predetermined value is smaller.When the precision of colour temperature adjustment is relatively low, institute
It is larger to state predetermined value.
Processor 520 can be general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), ready-made
Programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware group
Part.General processor can be microprocessor or any conventional processor etc..
With the processor 520 ordinatedly, memory can also be included in colour temperature control device 500, which is used for
Store generated data in the operational process of the program to be run in processor 520 and processor 520.Memory can
To include at least one of read-only memory and random access memory, and instruction and data is provided to processor.Memory
A part of can also include non-volatile row random access memory (NVRAM).
Display driving integrated circuit (DDIC) 530 provides voltage or current drive signal for the pel array in display screen.
Correspondingly, colour temperature can easily be controlled by means of the display driving integrated circuit.When current colour temperature and the target colour temperature not
When consistent, it is meant that the current colour temperature deviates the target colour temperature, so as to need by the current colour temperature be adjusted to it is close or
Equal to the target colour temperature.Correspondingly, display driving integrated circuit 530 adjusts the current of the electronic equipment based on target colour temperature
Colour temperature, so as to automatically adjust the current colour temperature of the electronic equipment.In colour temperature control device 500, it can automatically determine
The target colour temperature is without manual operation, with reference to the display driving integrated circuit, so as to automatically carry out colour temperature adjustment.
Display driving integrated circuit 530 can be by changing current colour temperature tune of the white balance by electronic equipment of the display screen
Whole is the target colour temperature.As previously mentioned, white balance be exactly tell electronic equipment what be white colour.Electronic equipment is aware of
White can just calculate other colors.Colour temperature is higher, photochromic more blue；The colour temperature the low photochromic more partially red.Therefore, colour temperature and white
Balance is closely related parameter, and display driving integrated circuit 530 can be set electronics by changing the white balance of the display screen
Standby current colour temperature is adjusted to the target colour temperature.
As an example, display driving integrated circuit 530 can be arranged on the colour temperature from 3000K to 9000K based on white balance
In the range of 128 colour temperature adjusted values are fifty-fifty set.Correspondingly, the Adjustment precision of colour temperature is (9000K-3000K)/128=
46.87K.128 colour temperature adjusted values are only example, can also be set according to requirements such as colour temperature adjusting range and Adjustment precisions
The colour temperature adjusted value of other numbers, for example, 90,156 etc..Effect under being set about specific colour temperature may refer to Fig. 4's
Diagram and relevant description.
In the case of colour temperature is manually adjusted, user needs to find the color temperature parameters in electronic equipment, and correspondingly adjusts,
This is complicated for operation, it is impossible to reach high accuracy.Moreover, because human eye has unique adaptability, human eye cannot be sent out sometimes
The variation of existing colour temperature, so as to cannot accurately carry out colour temperature adjustment.During the adjustment, the eyes of user need to undergo different
Display under colour temperature, this is easy to cause the discomfort of eyes of user.However, the technology of the colour temperature control device in the embodiment of the present disclosure
In scheme, colour temperature is adjusted using display driving integrated circuit, can participated in without user or less participation in the case of it is accurate
Really adjust the colour temperature adjustment of electronic equipment.
In order to meet the diversified demand of user, colour temperature control device 500 can also impart to user's right to choose, to select to adjust
The mode of whole colour temperature.As shown in figure 5, the colour temperature control device 500 can also include input unit 540 and output device 550.Institute
State display driving integrated circuit 530 generate user export prompt message, the prompt message for prompt manually adjust colour temperature or from
Dynamic adjustment colour temperature；The output device 550 exports prompt message to user, and the input unit 540 receives user for described
The response operation of prompt message；The display driving integrated circuit 530 indicates adjust automatically colour temperature in the response operation received
When, the current colour temperature of electronic equipment is automatically adjusted to the target colour temperature.Manual tune is indicated in the response operation received
During whole colour temperature, the input unit 540 continues to the instruction of user, and display driving integrated circuit 530 can be according to being received
Instruction adjust current colour temperature.
In the technical solution of the above-mentioned colour temperature control device of the embodiment of the present disclosure, determined based on the environment of electronic equipment
Its target colour temperature, and using the current colour temperature of the display driving integrated circuit adjustment electronic equipment, it is convenient and accurate to allow to
Ground adjusts the colour temperature of display device, so as to improve the usage experience of user.
Colour temperature control device described above can be applied to any electronic equipment, correspondingly including the colour temperature control device
Electronic equipment is also in the open scope of the embodiment of the present disclosure.Fig. 7 is the electricity schematically illustrated according to the embodiment of the present disclosure
The structure diagram of sub- equipment.As shown in fig. 7, electronic equipment 700 may include：Display screen 710；Colour temperature control device as described above
720, for controlling the colour temperature of the display screen 710.The display screen 710 is, for example, liquid crystal display, plasma display, has
Machine light emitting diode (OLED) display screen etc., wherein with pel array.Colour temperature control device 720 corresponds to above-mentioned colour temperature control
Device 500 processed, including display driving integrated circuit.The display driving integrated circuit is controlling the aobvious of the display screen 710
During showing, the colour temperature of the display screen 710 is controlled.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description,
The specific work process of unit can refer to the corresponding process in preceding method embodiment, and details are not described herein.
Those of ordinary skill in the art may realize that each exemplary lists described with reference to the embodiments described herein
Member and step can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode perform, specific application and design constraint depending on technical solution.Professional technician can be with
Described function is realized using distinct methods to each specific application, but this realization is it is not considered that beyond this public affairs
The range opened.
In several embodiments provided herein, it should be understood that disclosed method and apparatus can pass through it
Its mode is realized.For example, apparatus embodiments described above are only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units can combine or
It is desirably integrated into another system or some features can be ignored or does not perform.
The specific embodiment of the above, the only disclosure, but the protection domain of the disclosure is not limited thereto, it is any
In the technical scope that those familiar with the art discloses in the disclosure, change or replacement can be readily occurred in, should all be contained
It covers within the protection domain of the disclosure.Therefore, the protection domain of the disclosure described should be subject to the protection scope in claims.
Claims (11)
1. a kind of color temperature control method, applied to an electronic equipment, which includes display driving integrated circuit, the color
Warm control method includes：
Obtain the environmental parameter in the environment where the electronic equipment；
Determine to be suitable for the target colour temperature of the electronic equipment based on the environmental parameter, wherein, it is described to be based on the environment
Parameter determines that the aim colour thermometer bulb for being suitable for the electronic equipment includes：Obtain the contrast of display device；Based on the environment
Parameter and the contrast determine to be suitable for the target colour temperature of the electronic equipment；
Judge whether the current colour temperature of the electronic equipment is consistent with the target colour temperature, and obtain a judging result；
When the judging result indicates that the current colour temperature is inconsistent with the target colour temperature, the display driving integrated circuit
The current colour temperature of the electronic equipment is adjusted based on target colour temperature, wherein, the display driving integrated circuit is based on target colour temperature
The current color thermometer bulb for adjusting the electronic equipment includes：By current color of the white balance by electronic equipment for changing the display device
Temperature is adjusted to the target colour temperature.
2. color temperature control method according to claim 1, wherein, in the environment where the acquisition electronic equipment
Environmental parameter at least one of includes the following steps：
Obtain the luminance information in the environment where the electronic equipment；
Obtain the colouring information in the environment where the electronic equipment.
3. color temperature control method according to claim 2, wherein, in the environment where the acquisition electronic equipment
Luminance information includes：
Obtain geographical location information, temporal information and the weather forecast information of the electronic equipment；
Based on the brightness in the environment where geographical location information, temporal information and weather forecast information the deduction electronic equipment
Information.
4. color temperature control method according to claim 1, wherein, it is described to determine to be suitable for institute based on the environmental parameter
The aim colour thermometer bulb for stating electronic equipment includes：
Obtain pre-set colour temperature look-up table；
The colour temperature look-up table is searched for obtain colour temperature corresponding with the environmental parameter；
The target colour temperature is set based on the colour temperature searched.
5. color temperature control method according to claim 1, wherein, the display driving integrated circuit is based on the aim colour
The current color thermometer bulb that temperature adjusts the electronic equipment includes：
Prompt message is exported to user, which manually adjusts colour temperature or adjust automatically colour temperature for prompting；
The response that user is received for the prompt message operates；
When the response operation received indicates adjust automatically colour temperature, the current colour temperature of electronic equipment is automatically adjusted to described
Target colour temperature.
6. a kind of colour temperature control device, including：
Environment sensing unit, for the environmental parameter in the environment where sensing electronic equipment；
Processor determines to be suitable for the target colour temperature of the electronic equipment, judges that the electronics is set based on the environmental parameter
Whether standby current colour temperature is consistent with the target colour temperature, and obtains a judging result, wherein, the processor by grasping as follows
Make the target colour temperature to determine to be suitable for the electronic equipment：Obtain the contrast of display device；Based on the environmental parameter and
The contrast determines to be suitable for the target colour temperature of the electronic equipment；
Display driving integrated circuit is based on when the judging result indicates the current colour temperature and the target colour temperature is inconsistent
Target colour temperature adjusts the current colour temperature of the electronic equipment, and drives a display device based on the current colour temperature after adjustment；Its
In, the current colour temperature of electronic equipment is adjusted to by the display driving integrated circuit by changing the white balance of the display device
The target colour temperature.
7. colour temperature control device according to claim 6, wherein, the environment sensing unit includes OPTICAL SENSORS, the light
Sensor senses at least one of luminance information and colouring information in the environment where the electronic equipment.
8. colour temperature control device according to claim 6, wherein, the environment sensing unit includes：
Communication module, for obtaining the geographical location information of the electronic equipment, temporal information and weather forecast information；
Processing module infers the electronic equipment place for being based on geographical location information, temporal information and weather forecast information
Environment in luminance information.
9. colour temperature control device according to claim 6, wherein, the processor determines to be suitable for by operating as follows
The target colour temperature of the electronic equipment：
Obtain pre-set colour temperature look-up table；
The colour temperature look-up table is searched for obtain colour temperature corresponding with the environmental parameter；
The target colour temperature is set based on the colour temperature searched.
10. colour temperature control device according to claim 6, further includes input unit and output device, wherein,
Display driving integrated circuit generation user exports prompt message, the prompt message for prompt to manually adjust colour temperature or
Adjust automatically colour temperature；
The output device exports prompt message to user, and the input unit receives the response that user is directed to the prompt message
Operation；
The display driving integrated circuit received response operation indicate adjust automatically colour temperature when, automatically by electronic equipment
Current colour temperature be adjusted to the target colour temperature.
11. a kind of electronic equipment, including：
Display screen；
Colour temperature control device as described in any one of claim 6 to 10, for controlling the display screen.
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