CN106328096A - Backlight compensation method and device - Google Patents
Backlight compensation method and device Download PDFInfo
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- CN106328096A CN106328096A CN201510393457.8A CN201510393457A CN106328096A CN 106328096 A CN106328096 A CN 106328096A CN 201510393457 A CN201510393457 A CN 201510393457A CN 106328096 A CN106328096 A CN 106328096A
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Abstract
The present invention provides a backlight compensation method and a device. The method and the device solve the problem in the prior art that according to the conventional backlight adjustment mode, the brightness of the backlight can be adjusted only according to the external light intensity and the external brightness can not be compensated so as to cause the discomfort of a user eye under the backlight of a terminal. The method comprises the steps of detecting the ambient brightness of the terminal; and generating the cold light or the cold light and the warm light through controlling the backlight circuit of the terminal according to the ambient brightness. According to the technical scheme of the invention, the relatively flexible screen backlight is provided for users, so that the user experience is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of backlight compensation method and device.
Background technology
At present, the backlight regulation technology of terminal can come terminal screen according to the brightness of terminal surrounding ambient light
Backlight be adjusted, when user checks terminal, it is incident by screen that a part of light comes from terminal backlight
In the eyes of user, another part light comes from ambient and arrives user's by the screen reflection of terminal
In eyes, but, existing backlight technology in the case of light is relatively strong with dark in the case of can only
Regulate the brightness of screen by the brightness of regulation backlight, but to enter the light of human eye bright due to reflected ambient light
Weak cannot adjust, cause screen in the environment of light is relatively strong show partially warm, dazzling, screen under dark environment
Curtain display is colder, make user feel under the weather, and so uses terminal can make the eyes of user for a long time user
The most tired, cause Consumer's Experience poor.
Summary of the invention
The invention provides a kind of backlight compensation method and device, be used for solving backlight of the prior art regulation
Mode is only capable of emphasizing whole backlight illumination according to ambient light, and cannot brightness compensate to external world so that terminal
The backlight problem that is easily caused user's ophthalmic uncomfortable.
According to an aspect of the invention, it is provided a kind of backlight compensation method, including: the ring of detection terminal
Border brightness；The backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light.
Wherein, the backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light, including:
The corresponding relation of the cold light corresponding according to default environmental light brightness and the brightness value of warm light controls eventually
The backlight circuit of end produces cold light or cold light and warm light.
Further, said method also includes: before the ambient brightness of detection terminal, arrange ambient brightness
Brightness value corresponding relation with the brightness value corresponding relation of cold light and ambient brightness with warm light；Respectively according to ring
The brightness value corresponding relation matching of the brightness value corresponding relation of border brightness and cold light and ambient brightness and warm light
Go out cold light curve corresponding to varying environment brightness and warm light curve corresponding to ambient light；According to ambient brightness
The backlight circuit controlling terminal produces cold light or cold light and warm light, including: in cold light curve and warm light curve
Search the cold light brightness value corresponding with ambient brightness and warm light brightness value, according to the cold light brightness value found
And the backlight circuit of warm light brightness value control terminal produces cold light or cold light and warm light.
Wherein, the backlight circuit controlling terminal according to ambient brightness produces cold light and warm light, including: control
The photographic head shooting image of terminal；Identical with designated color with what terminal was preset according to the designated color in image
The difference of color determine the aberration that ambient brightness makes image produce；Control terminal backlight circuit to produce and aberration
Corresponding cold light or cold light and warm light.
Wherein, the backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light, including:
Control the dutycycle of the pulse width modulation (PWM) ripple of input backlight circuit according to ambient brightness, make backlight electricity
Road exports the cold light corresponding with ambient brightness or cold light and warm light.
According to another aspect of the present invention, it is provided that a kind of BLC device, including: detection module,
For detecting the ambient brightness of terminal；Control module, for controlling the backlight circuit of terminal according to ambient brightness
Produce cold light or cold light and warm light.
Wherein, above-mentioned control module specifically for: according to the corresponding cold light of default environmental light brightness with
And the backlight circuit of the corresponding relation control terminal of the brightness value of warm light produces cold light or cold light and warm light.
Further, said apparatus also includes: arrange module, before the ambient brightness in detection terminal,
Arrange that ambient brightness and the brightness value corresponding relation of cold light and ambient brightness are corresponding with the brightness value of warm light to close
System；Fitting module, for respectively according to ambient brightness and the brightness value corresponding relation of cold light and ambient brightness
Cold light curve corresponding to varying environment brightness and ambient light is simulated with the brightness value corresponding relation of warm light
Corresponding warm light curve；Control module specifically for: in cold light curve and warm light curve search bright with environment
The cold light brightness value of degree correspondence and warm light brightness value, according to the cold light brightness value found and warm light brightness
Value controls the backlight circuit of terminal and produces cold light or cold light and warm light.
Wherein, above-mentioned control module, including: the first control unit, for controlling the photographic head shooting of terminal
Image；Determine unit, for identical with designated color with what terminal was preset according to the designated color in image
The difference of color determines the aberration that ambient brightness makes image produce；Second control unit, is used for controlling the terminal back of the body
Optical circuit produces the cold light corresponding with aberration or cold light and warm light.
Wherein, control module specifically for: according to ambient brightness control input backlight circuit pulse width adjust
The dutycycle of PWM ripple processed, makes backlight circuit export the cold light corresponding with ambient brightness or cold light and warm light.
The scheme of the embodiment of the present invention, controls its backlight circuit according to the ambient brightness of terminal and produces cold light or cold
Light and warm light, carry out ambient light to external world and compensate, can provide the user the softest screen backlight,
Improve Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the backlight compensation method of the embodiment of the present invention 1；
Fig. 2 is that the embodiment of the present invention 1 provides ambient light-cold light and the schematic diagram of ambient light-warm light curve chart；
Fig. 3 is the structured flowchart of the BLC device of the embodiment of the present invention 3.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work on the premise of the every other embodiment that obtained, broadly fall into the scope of protection of the invention.
Embodiment 1
Present embodiments providing a kind of backlight compensation method, the method is used for controlling the backlight circuit of terminal, with
The brightness of the ambient light according to terminal surrounding controls the warm light lamp in backlight circuit and the brightness of cold light lamp,
Thus the ambient light carrying out terminal carries out the compensation of warm light or cold light, Fig. 1 is the backlight of the embodiment of the present invention 1
The flow chart of compensation method, as it is shown in figure 1, the method comprises the steps:
Step 101: the ambient brightness of detection terminal；
In this step, the environment of terminal can be obtained by being built in the electrical distance sensor of terminal inner
Brightness, this step can be carried out when terminal surrounding ambient brightness changes.
Step 102: the backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light.
Wherein, the backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light, specifically may be used
To include: the cold light corresponding according to default environmental light brightness and the corresponding relation of the brightness value of warm light
The backlight circuit controlling terminal produces cold light or cold light and warm light, concrete, can be according to ambient brightness control
The pulse width modulation (PWM) (pulse width modulation, Pulse Width Modulation) of input backlight circuit
The dutycycle of ripple, makes backlight circuit export the cold light corresponding with ambient brightness or cold light and warm light.
Before above-mentioned steps 101, said method can also include: before the ambient brightness of detection terminal,
Arrange that ambient brightness and the brightness value corresponding relation of cold light and ambient brightness are corresponding with the brightness value of warm light to close
System；Respectively according to ambient brightness and the brightness value corresponding relation of cold light and ambient brightness and the brightness value of warm light
Corresponding relation simulates cold light curve corresponding to varying environment brightness and warm light curve corresponding to ambient light,
Fig. 2 is that the embodiment of the present invention 1 provides ambient light-cold light and the schematic diagram of ambient light-warm light curve chart, such as figure
Shown in 2, wherein X-axis represents that ambient light, Y-axis represent that the light intensity of cold light or warm light, A curve and B are bent
Line represents cold light curve and warm light curve respectively, as can be seen, in the case of knowing environmental light intensity,
The corresponding cold light and the intensity of warm light pre-set can be found in the drawings, it should be noted that should
Figure is only schematic diagram, and Gu Tuzhong is not provided with concrete numerical value corresponding relation, and the change of the light intensity in this figure simultaneously becomes
Gesture does not the most represent in the present embodiment the intensity of cold light and warm light with the variation tendency of ambient light；Based on this,
The backlight circuit controlling terminal according to ambient brightness produces cold light or cold light and warm light, specifically may include that
Cold light curve and the lookup cold light brightness value corresponding with ambient brightness and warm light brightness value, root in warm light curve
It is investigated that the cold light brightness value found and warm light brightness value control backlight circuit generation cold light or the cold light of terminal
And warm light.
Further, in order to more accurately the backlight of terminal screen be compensated, the present embodiment also may be used
The coldest to determine that according to the aberration shooting the image obtained under current environment light backlight circuit produces
Light or cold light and warm light, based on this, the backlight circuit controlling terminal according to ambient brightness produces cold light or cold light
And warm light, may include that after the ambient brightness of detection terminal, control the photographic head shooting image of terminal；
The difference of the color identical with designated color preset according to the designated color in image and terminal determines environment
Brightness makes the aberration that image produces；Control terminal backlight circuit produce the cold light corresponding with aberration or cold light and warm up
Light, it should be noted that when shooting image, the photographic head of the side that can select not to be blocked in terminal comes
Shooting image.
Embodiment 2
The backlight compensation method that the present invention is provided by the present embodiment by disclosing more ins and outs is carried out
Further illustrate.
The backlight compensation method that the present embodiment provides is substantially carried out processing as follows:
The ambient brightness of terminal is detected, by ambient brightness graduation by the electrical distance sensor of terminal built-in
Pass to system, according to the demand of control accuracy, can be just with the stage division of multiple different accuracy；
The different brackets of ambient light is set to corresponding different cold, the power of warm colour light, specifically, cold light with
And warm light can also correspond to different grades, simulate ambient light-cold light and two curves of ambient light-warm light,
I.e. cold light curve and warm light curve；In ambient light, when i.e. ambient light is stronger, just employing weakens warm light, adds
Terminal screen backlight is compensated by the mode of strong cold light, when ambient light is more weak, just use strengthen warm light,
The mode weakening cold light carries out BLC, and particular situation needs according to actually detected ambient brightness out
Determine.
Being provided with two groups of backlight circuits in terminal, one group is used for controlling cold light lamp, and one group is used for controlling warm light lamp,
Two groups of lamps are separate and work simultaneously and provide backlight to screen, and backlight circuit can be bright according to the environment recorded
Degree controls the power that the size of input duty cycle goes to control cold light lamp with warm light lamp；
When the intensity of external environmental light changes, use the ambient brightness etc. that electrical distance sensor detects
Level is brought in ambient light-cold light and two curves of ambient light-warm light, obtains the power of cold light, warm light respectively
Grade, by regulation PWM ripple Duty ratio control backlight circuit, thus obtains soft backlight and shows.
Embodiment 3
Present embodiments providing a kind of BLC device, this device is used for realizing above-described embodiment 1 and reality
Executing the backlight compensation method that example 2 provides, this device can be arranged in terminal, and Fig. 3 is the embodiment of the present invention
The structured flowchart of the BLC device of 3, as it is shown on figure 3, this device 30 includes following ingredient:
Detection module 31, for detecting the ambient brightness of terminal；
Control module 32, produces cold light or cold light for controlling the backlight circuit of terminal according to ambient brightness and warms up
Light.
Wherein, above-mentioned control module 32 specifically for: according to corresponding cold of default environmental light brightness
The corresponding relation of the brightness value of light and warm light controls the backlight circuit of terminal and produces cold light or cold light and warm light.
Further, said apparatus 30 also includes: arrange module, for the ambient brightness in detection terminal
Before, the brightness value pair of ambient brightness and the brightness value corresponding relation of cold light and ambient brightness and warm light is set
Should be related to；Fitting module, for respectively according to ambient brightness and the brightness value corresponding relation of cold light and environment
Brightness simulates cold light curve corresponding to varying environment brightness and ring with the brightness value corresponding relation of warm light
The warm light curve that border light is corresponding；Control module specifically for: in cold light curve and warm light curve search and ring
Cold light brightness value that border brightness is corresponding and warm light brightness value, according to the cold light brightness value found and warm light
Brightness value controls the backlight circuit of terminal and produces cold light or cold light and warm light.
Wherein, above-mentioned control module 32 is the most permissible, including: the first control unit, it is used for controlling terminal
Photographic head shooting image；Determine unit, for preset according to the designated color in image and terminal with finger
The difference determining the identical color of color determines the aberration that ambient brightness makes image produce；Second control unit, uses
The cold light corresponding with aberration or cold light and warm light is produced in controlling terminal backlight circuit.
Wherein, above-mentioned control module 32 specifically for: according to ambient brightness control input backlight circuit arteries and veins
Rush the dutycycle of width modulated PWM ripple, make backlight circuit export the cold light corresponding with ambient brightness or cold light
And warm light.
The scheme that the embodiment of the present invention provides, can make terminal screen provide under the light condition of various intensity
A kind of soft interface relatively allowing human eye comfortable, it is to avoid due to ambient to human eye bring dazzling, no
Comfortable sensation, has provided the user more preferable experience.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention
Should be as the criterion with described scope of the claims.
Claims (10)
1. a backlight compensation method, it is characterised in that including:
The ambient brightness of detection terminal；
The backlight circuit controlling terminal according to described ambient brightness produces cold light or cold light and warm light.
Method the most according to claim 1, it is characterised in that described according to described ambient brightness control
The backlight circuit of terminal processed produces cold light or cold light and warm light, including:
Control whole with the corresponding relation of cold light and the brightness value of warm light respectively according to default environmental light brightness
The backlight circuit of end produces cold light or cold light and warm light.
Method the most according to claim 1, it is characterised in that described method also includes:
Before the ambient brightness of detection terminal, arrange ambient brightness respectively with brightness value and the warm light of cold light
The corresponding relation of brightness value；
Simulate according to the corresponding relation of the brightness value of ambient brightness and cold light and the brightness value of warm light respectively
Cold light curve that environmental light brightness is corresponding and warm light curve corresponding to ambient light；
The backlight circuit controlling terminal according to described ambient brightness produces cold light or cold light and warm light, including:
The cold light brightness corresponding with described ambient brightness is searched in described cold light curve with described warm light curve
Value and warm light brightness value, control described terminal according to the cold light brightness value found and warm light brightness value
Backlight circuit produces cold light or cold light and warm light.
Method the most according to claim 1, it is characterised in that described according to described ambient brightness control
The backlight circuit of terminal processed produces cold light and warm light, including:
Control the photographic head shooting image of terminal；
Difference according to the designated color in described image with the color identical with described designated color preset
Determine the aberration that described image produces；
Control terminal backlight circuit and produce the cold light corresponding with described aberration or cold light and warm light.
5. according to the method described in Claims 1-4 any one, it is characterised in that according to described ring
The backlight circuit of border brilliance control terminal produces cold light or cold light and warm light, including:
Control to input the duty of the pulse width modulation (PWM) ripple of described backlight circuit according to described ambient brightness
Ratio, makes described backlight circuit export the cold light corresponding with described ambient brightness or cold light and warm light.
6. a BLC device, it is characterised in that including:
Detection module, for detecting the ambient brightness of terminal；
Control module, for control according to described ambient brightness the backlight circuit of terminal produce cold light or cold light and
Warm light.
Device the most according to claim 6, it is characterised in that described control module specifically for:
The cold light the most corresponding according to default environmental light brightness and the corresponding pass of the brightness value of warm light
System controls the backlight circuit of terminal and produces cold light or cold light and warm light.
Device the most according to claim 6, it is characterised in that described device also includes:
Module is set, for detection terminal ambient brightness before, arrange ambient brightness respectively with cold light
The corresponding relation of the brightness value of brightness value and warm light；
Fitting module, for right according to ambient brightness and the brightness value of the brightness value of cold light and warm light respectively
Should be related to and simulate cold light curve corresponding to environmental light brightness and warm light curve corresponding to ambient light；
Control module specifically for: in described cold light curve and described warm light curve search bright with described environment
The cold light brightness value of degree correspondence and warm light brightness value, according to the cold light brightness value found and warm light brightness
Value controls the backlight circuit of described terminal and produces cold light or cold light and warm light.
Device the most according to claim 6, it is characterised in that described control module, including:
First control unit, for controlling the photographic head shooting image of terminal；
Determine unit, for identical with described designated color with preset according to the designated color in described image
The difference of color determine the aberration that described image produces；
Second control unit, produces the cold light corresponding with described aberration or cold light for controlling terminal backlight circuit
And warm light.
10. according to the device described in claim 6 to 9 any one, it is characterised in that described control mould
Block specifically for:
Control to input the duty of the pulse width modulation (PWM) ripple of described backlight circuit according to described ambient brightness
Ratio, makes described backlight circuit export the cold light corresponding with described ambient brightness or cold light and warm light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393457.8A CN106328096A (en) | 2015-07-07 | 2015-07-07 | Backlight compensation method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393457.8A CN106328096A (en) | 2015-07-07 | 2015-07-07 | Backlight compensation method and device |
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| Publication Number | Publication Date |
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| CN106328096A true CN106328096A (en) | 2017-01-11 |
Family
ID=57727467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510393457.8A Pending CN106328096A (en) | 2015-07-07 | 2015-07-07 | Backlight compensation method and device |
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| CN (1) | CN106328096A (en) |
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Application publication date: 20170111 |