CN105161040A - Method and device for adjusting backlight intensity - Google Patents
Method and device for adjusting backlight intensity Download PDFInfo
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- CN105161040A CN105161040A CN201510717234.2A CN201510717234A CN105161040A CN 105161040 A CN105161040 A CN 105161040A CN 201510717234 A CN201510717234 A CN 201510717234A CN 105161040 A CN105161040 A CN 105161040A
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Abstract
The invention relates to a method and device for adjusting backlight intensity. The method for adjusting the backlight intensity includes the steps that whether the current display content is an all-black picture or not is detected; if it is detected that the current display content is the all-black picture, the backlight intensity is lowered; if it is detected that the current display content is not the all-black picture, the backlight intensity is kept. By the adoption of the method and device, whether the current display content is the all-black picture or not is detected, and when the current display content is the all-black picture, the backlight intensity is lowered, so that the phenomenon of light leaking is reduced, and the display effect is improved.
Description
Technical field
The disclosure relates to communication technical field, particularly relates to a kind of control method and device of backlight intensity.
Background technology
Along with the development of display technique, people can adopt electronic equipment to show various video data.Wherein, electronic equipment can comprise the mobile terminal such as TV and mobile phone.
At present, electronic equipment such as TV, when showing complete black picture, adopts conventional backlight intensity usually.But this implementation can cause light leak and the non-uniform phenomenon of screen, thus greatly reduces display effect.
Summary of the invention
For overcoming Problems existing in correlation technique, the disclosure provides a kind of control method and device of backlight intensity.
According to the first aspect of disclosure embodiment, a kind of control method of backlight intensity is provided, comprises:
Detect whether present displayed content is complete black picture;
If detect, present displayed content is described complete black picture, then reduce backlight intensity;
If detect, present displayed content is the black picture of non-fully, then keep described backlight intensity.
In one embodiment, described reduction backlight intensity, comprising:
Described backlight intensity is reduced in the mode of gradual change.
In one embodiment, described method also comprises:
After described reduction backlight intensity, if detect, present displayed content switches to the black picture of non-fully, then described backlight intensity is returned to green strength.
In one embodiment, described method also comprises:
After the described backlight intensity of described maintenance, if detect, present displayed content switches to complete black picture, then reduce described backlight intensity.
In one embodiment, whether described detection present displayed content is complete black picture, comprising:
Whether all pixels adding up present displayed content corresponding are black;
If be black, then detect that present displayed content is complete black picture;
If be not black, then detect that present displayed content is the black picture of non-fully.
According to the second aspect of disclosure embodiment, a kind of regulating device of backlight intensity is provided, comprises:
Detection module, is configured to detect whether present displayed content is complete black picture;
Reduce module, if be configured to described detection module to detect that present displayed content is described complete black picture, then reduce backlight intensity;
Keep module, if be configured to described detection module to detect that present displayed content is the black picture of non-fully, then keep described backlight intensity.
In one embodiment, described reduction module, is configured to:
Described backlight intensity is reduced in the mode of gradual change.
In one embodiment, described device also comprises:
Detect and recover module, be configured to after described reduction module reduces backlight intensity, if detect, present displayed content switches to the black picture of non-fully, then described backlight intensity is returned to green strength.
In one embodiment, described device also comprises:
Detect and reduce module, be configured to after described maintenance module keeps described backlight intensity, if detect, present displayed content switches to complete black picture, then reduce described backlight intensity.
In one embodiment, described detection module comprises:
Statistics submodule, whether all pixels being configured to add up present displayed content corresponding are black;
First detection sub-module, all pixels that described statistics submodule counts present displayed content corresponding if be configured to are black, then detect that present displayed content is complete black picture;
Second detection sub-module, all pixels that described statistics submodule counts present displayed content corresponding if be configured to are not black, then detect that present displayed content is the black picture of non-fully.
According to the third aspect of disclosure embodiment, a kind of regulating device of backlight intensity is provided, comprises:
Processor;
For the storer of storage of processor executable instruction;
Wherein, processor is configured to:
Detect whether present displayed content is complete black picture;
If detect, present displayed content is described complete black picture, then reduce backlight intensity;
If detect, present displayed content is the black picture of non-fully, then keep described backlight intensity.
The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect: by detecting whether present displayed content is complete black picture, and when present displayed content is complete black picture, reduce backlight intensity, thus reduce light leakage phenomena, promote display effect.
By when present displayed content is complete black picture, reduce backlight intensity in the mode of gradual change, thus effectively reduce compared with the light leakage phenomena under dark situation, considerably enhance display effect.
By when detecting that present displayed content switches to the black picture of non-fully, backlight intensity being returned to green strength, thus ensures display effect when avoiding light leakage phenomena.
By when detecting that present displayed content switches to complete black picture, reduce backlight intensity, thus reduce light leakage phenomena, promote display effect.
Whether all pixels corresponding by statistics present displayed content are black, and when all pixels that present displayed content is corresponding are black, detect that present displayed content is complete black picture, and when all pixels that present displayed content is corresponding are not black, detect that present displayed content is the black picture of non-fully, implementation is simple.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Accompanying drawing to be herein merged in instructions and to form the part of this instructions, shows embodiment according to the invention, and is used from instructions one and explains principle of the present invention.
Fig. 1 is the process flow diagram of the control method of a kind of backlight intensity according to an exemplary embodiment.
Fig. 2 is the process flow diagram of the control method of another kind of backlight intensity according to an exemplary embodiment.
Fig. 3 is the process flow diagram of the control method of another backlight intensity according to an exemplary embodiment.
Fig. 4 a is the process flow diagram of the control method of another backlight intensity according to an exemplary embodiment.
Fig. 4 b is the process flow diagram of the control method of another backlight intensity according to an exemplary embodiment.
Fig. 5 is the block diagram of the regulating device of a kind of backlight intensity according to an exemplary embodiment.
Fig. 6 is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment.
Fig. 7 a is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment.
Fig. 7 b is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment.
Fig. 8 is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment.
Fig. 9 is a kind of block diagram being applicable to the regulating device of backlight intensity according to an exemplary embodiment.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Embodiment described in following exemplary embodiment does not represent all embodiments consistent with the present invention.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present invention are consistent.
Fig. 1 is the process flow diagram of the control method of a kind of backlight intensity according to an exemplary embodiment, and as shown in Figure 1, the control method of this backlight intensity can be applicable to, on the electronic equipment such as TV, mobile phone, comprise the following steps S101-S103:
In step S101, detect whether present displayed content is complete black picture.
In this embodiment, whether can detect present displayed content is in several ways complete black picture.Such as, whether whether can being black by all pixels corresponding to statistics present displayed content, to detect present displayed content be complete black picture.
In step s 102, if detect, present displayed content is complete black picture, then reduce backlight intensity.
In this embodiment, if all pixels corresponding to present displayed content are black, then detect that present displayed content is complete black picture.
If detect, present displayed content is complete black picture, then reduce backlight intensity, to reduce light leak.
In step s 103, if detect, present displayed content is the black picture of non-fully, then keep backlight intensity.
In this embodiment, if all pixels corresponding to present displayed content are not black, then detect that present displayed content is the black picture of non-fully.
If detect, present displayed content is the black picture of non-fully, then keep backlight intensity.
The control method embodiment of above-mentioned backlight intensity, by detecting whether present displayed content is complete black picture, and when present displayed content is complete black picture, reduces backlight intensity, thus reduces light leakage phenomena, promote display effect.
Fig. 2 is the process flow diagram of the control method of another kind of backlight intensity according to an exemplary embodiment, and as shown in Figure 2, the method can comprise the steps:
In step s 201, whether detect present displayed content is complete black picture.
In this embodiment, electronic equipment can play various resource, can carry out picture switching in the process of playing resource, such as, can switch to complete black picture by the black picture of non-fully, also can switch to the black picture of non-fully by complete black picture.
Whether but no matter how picture switches, all can detect present displayed content is in several ways complete black picture.Such as, whether whether can being black by all pixels corresponding to statistics present displayed content, to detect present displayed content be complete black picture.
In step S202, if detect, present displayed content is complete black picture, then reduce backlight intensity in the mode of gradual change.
In this embodiment, if all pixels corresponding to present displayed content are black, then detect that present displayed content is complete black picture.
If detect, present displayed content is complete black picture, then reduce backlight intensity in the mode of gradual change.Reduce backlight intensity in the mode of gradual change and can promote display effect significantly, this is because the susceptibility of human eye under light and shade environment is different, such as under comparatively bright ring border, if backlight intensity rapid drawdown 10 nit, human eye can not be felt, but under comparatively dark situation, if backlight intensity rapid drawdown 10 nit, human eye can obviously feel that backlight reduces.In order to make user under comparatively dark situation, not easily perceive backlight to reduce, promote display effect, this embodiment can reduce backlight intensity in the mode of gradual change, the mode that such as can reduce by 1 nit with each unit interval carrys out reduction backlight intensity gradually, which is only example, can arrange the mode that gradual change reduces backlight intensity in actual applications as required flexibly.
The control method embodiment of above-mentioned backlight intensity, by when present displayed content is complete black picture, reduces backlight intensity in the mode of gradual change, thus effectively reduces compared with the light leakage phenomena under dark situation, considerably enhance display effect.
Fig. 3 is the process flow diagram of the control method of another backlight intensity according to an exemplary embodiment, and as shown in Figure 3, the method can comprise the steps:
In step S301, detect whether present displayed content is complete black picture.
Detection mode can the corresponding part of embodiment of the method shown in Figure 1, does not repeat herein.
In step s 302, if detect, present displayed content is complete black picture, then reduce backlight intensity.
In order to promote display effect, backlight intensity can be reduced in the mode of gradual change in this embodiment.
In step S303, if detect, present displayed content switches to the black picture of non-fully, then backlight intensity is returned to green strength.
In this embodiment, because the content detected before is complete black picture, then reduce backlight intensity, namely backlight intensity is lower than green strength, due in the process of play content, can switch between complete black picture and the black picture of non-fully.Suppose, be switched to the black picture of non-fully by complete black picture, then electronic equipment such as TV can detect that present displayed content switches to the black picture of non-fully, because the light leakage phenomena under the black picture of non-fully is not obvious, therefore, backlight intensity can be returned to green strength, thus ensure that display effect.
The control method embodiment of above-mentioned backlight intensity, by when detecting that present displayed content switches to the black picture of non-fully, returning to green strength by backlight intensity, thus ensureing display effect when avoiding light leakage phenomena.
Fig. 4 a is the process flow diagram of the control method of another backlight intensity according to an exemplary embodiment, and as shown in fig. 4 a, the method can comprise the steps:
In step S401, detect whether present displayed content is complete black picture.
Detection mode can the corresponding part of embodiment of the method shown in Figure 1, does not repeat herein.
In step S402, if detect, present displayed content is complete black picture, then reduce backlight intensity.
In order to promote display effect, backlight intensity can be reduced in the mode of gradual change in this embodiment.
In step S403, if detect, present displayed content is the black picture of non-fully, then keep backlight intensity.
In step s 404, if detect, present displayed content switches to complete black picture, then reduce backlight intensity.
In this embodiment, because the content detected before is the black picture of non-fully, then can keep backlight intensity, due in the process of play content, can switch between complete black picture and the black picture of non-fully.Suppose, complete black picture is switched to by the black picture of non-fully, then electronic equipment such as TV can detect that present displayed content switches to complete black picture, because the light leakage phenomena under complete black picture is obvious, therefore, light leak can be reduced by the mode reducing backlight intensity, further, backlight intensity can be reduced to reduce light leak in the mode of gradual change, thus promote display effect significantly.
In addition, after step S402, can also comprise step S405, the content of step S405 is identical with step S303, does not repeat herein, as shown in Figure 4 b.
The control method embodiment of above-mentioned backlight intensity, by when detecting that present displayed content switches to complete black picture, reduces backlight intensity, thus reduces light leakage phenomena, promote display effect.
Corresponding with the control method embodiment of backlight intensity, the disclosure additionally provides the regulating device embodiment of backlight intensity.
Fig. 5 is the block diagram of the regulating device of a kind of backlight intensity according to an exemplary embodiment, and as shown in Figure 5, the regulating device of backlight intensity comprises: detection module 51, reduce module 52 and keep module 53.
Detection module 51 is configured to detect whether present displayed content is complete black picture.
If reduction module 52 is configured to described detection module 51 and detects that present displayed content is described complete black picture, then reduce backlight intensity.
If keep module 53 to be configured to described detection module 51 detect that present displayed content is the black picture of non-fully, then keep described backlight intensity.
Device is as shown in Figure 5 for realizing above-mentioned method flow as shown in Figure 1, and the related content related to describes identical, does not repeat herein.
In one embodiment, reduce module 52 can be configured to: reduce described backlight intensity in the mode of gradual change.Implementation procedure can be shown in Figure 2 method flow.
By detection module, the regulating device embodiment of above-mentioned backlight intensity, detects whether present displayed content is complete black picture, and by reducing module when present displayed content is complete black picture, reduce backlight intensity, thus reduces light leakage phenomena, promotes display effect.
Fig. 6 is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment, and as shown in Figure 6, on above-mentioned basis embodiment illustrated in fig. 5, this device also can comprise: detect and recover module 54.
Detect recovery module 54 to be configured to after described reduction module 52 reduces backlight intensity, if detect, present displayed content switches to the black picture of non-fully, then described backlight intensity is returned to green strength.
Device is as shown in Figure 6 for realizing above-mentioned method flow as shown in Figure 3, and the related content related to describes identical, does not repeat herein.
The regulating device embodiment of above-mentioned backlight intensity, when detection module detects that present displayed content switches to the black picture of non-fully, recovers module by detecting backlight intensity is returned to green strength, thus ensure display effect when avoiding light leakage phenomena.
Fig. 7 a is the block diagram of the regulating device of another backlight intensity according to an exemplary embodiment, and as shown in Figure 7a, on above-mentioned basis embodiment illustrated in fig. 5, this device also can comprise: detect and reduce module 55.
Detect reduction module 55 to be configured to after described maintenance module 53 keeps described backlight intensity, if detect, present displayed content switches to complete black picture, then reduce described backlight intensity.
In addition, on above-mentioned basis embodiment illustrated in fig. 6, this device also can comprise: detect and reduce module 55, as shown in Figure 7b.
If device as shown in Figure 7a or 7b is for realizing above-mentioned method flow as shown in Fig. 4 a or Fig. 4 b, the related content related to describes identical, does not repeat herein.
The regulating device embodiment of above-mentioned backlight intensity, by when detecting that present displayed content switches to complete black picture, reducing module reduction backlight intensity by detecting, thus reducing light leakage phenomena, promoting display effect.
Fig. 8 is the block diagram of the regulating device of another kind of backlight intensity according to an exemplary embodiment, as shown in Figure 8, on above-mentioned basis embodiment illustrated in fig. 5, detection module 51 can comprise: statistics submodule 511, first detection sub-module 512 and the second detection sub-module 513.
Whether all pixels that statistics submodule 511 is configured to add up present displayed content corresponding are black.
First detection sub-module 512, all pixels that described statistics submodule 511 counts present displayed content corresponding if be configured to are black, then detect that present displayed content is complete black picture.
Second detection sub-module 513, all pixels that described statistics submodule 511 counts present displayed content corresponding if be configured to are not black, then detect that present displayed content is the black picture of non-fully.
Device is as shown in Figure 8 for realizing above-mentioned method flow as shown in Figure 1, and the related content related to describes identical, does not repeat herein.
The regulating device embodiment of above-mentioned backlight intensity, whether all pixels corresponding by statistics submodule statistics present displayed content are black, by the first detection sub-module when all pixels that present displayed content is corresponding are black, detect that present displayed content is complete black picture, by the second detection sub-module when all pixels that present displayed content is corresponding are not black, detect that present displayed content is the black picture of non-fully, implementation is simple.
About the device in above-described embodiment, wherein the concrete mode of modules, submodule executable operations has been described in detail in about the embodiment of the method, will not elaborate explanation herein.
Fig. 9 is a kind of block diagram being applicable to the regulating device of backlight intensity according to an exemplary embodiment.Such as, device 900 can be mobile phone, computing machine, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building equipment, personal digital assistant, TV etc.
With reference to Fig. 9, device 900 can comprise following one or more assembly: processing components 902, storer 904, power supply module 906, multimedia groupware 908, audio-frequency assembly 910, the interface 912 of I/O (I/O), sensor module 914, and communications component 916.
The integrated operation of the usual control device 900 of processing components 902, such as with display, call, data communication, camera operation and record operate the operation be associated.Treatment element 902 can comprise one or more processor 920 to perform instruction, to complete all or part of step of above-mentioned method.In addition, processing components 902 can comprise one or more module, and what be convenient between processing components 902 and other assemblies is mutual.Such as, processing element 902 can comprise multi-media module, mutual with what facilitate between multimedia groupware 908 and processing components 902.
Storer 904 is configured to store various types of data to be supported in the operation of equipment 900.The example of these data comprises for any application program of operation on device 900 or the instruction of method, contact data, telephone book data, message, picture, video etc.Storer 904 can be realized by the volatibility of any type or non-volatile memory device or their combination, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM), ROM (read-only memory) (ROM), magnetic store, flash memory, disk or CD.
The various assemblies that electric power assembly 906 is device 900 provide electric power.Electric power assembly 906 can comprise power-supply management system, one or more power supply, and other and the assembly generating, manage and distribute electric power for device 900 and be associated.
Multimedia groupware 908 is included in the screen providing an output interface between described device 900 and user.In certain embodiments, screen can comprise liquid crystal display (LCD) and touch panel (TP).If screen comprises touch panel, screen may be implemented as touch-screen, to receive the input signal from user.Touch panel comprises one or more touch sensor with the gesture on sensing touch, slip and touch panel.Described touch sensor can the border of not only sensing touch or sliding action, but also detects the duration relevant to described touch or slide and pressure.In certain embodiments, multimedia groupware 908 comprises a front-facing camera and/or post-positioned pick-up head.When equipment 900 is in operator scheme, during as screening-mode or video mode, front-facing camera and/or post-positioned pick-up head can receive outside multi-medium data.Each front-facing camera and post-positioned pick-up head can be fixing optical lens systems or have focal length and optical zoom ability.
Audio-frequency assembly 910 is configured to export and/or input audio signal.Such as, audio-frequency assembly 910 comprises a microphone (MIC), and when device 900 is in operator scheme, during as call model, logging mode and speech recognition mode, microphone is configured to receive external audio signal.The sound signal received can be stored in storer 904 further or be sent via communications component 916.In certain embodiments, audio-frequency assembly 910 also comprises a loudspeaker, for output audio signal.
I/O interface 912 is for providing interface between processing components 902 and peripheral interface module, and above-mentioned peripheral interface module can be keyboard, some striking wheel, button etc.These buttons can include but not limited to: home button, volume button, start button and locking press button.
Sensor module 914 comprises one or more sensor, for providing the state estimation of various aspects for device 900.Such as, sensor module 914 can detect the opening/closing state of equipment 900, the relative positioning of assembly, such as described assembly is display and the keypad of device 900, the position of all right pick-up unit 900 of sensor module 914 or device 900 1 assemblies changes, the presence or absence that user contacts with device 900, the temperature variation of device 900 orientation or acceleration/deceleration and device 900.Sensor module 914 can comprise proximity transducer, be configured to without any physical contact time detect near the existence of object.Sensor module 914 can also comprise optical sensor, as CMOS or ccd image sensor, for using in imaging applications.In certain embodiments, this sensor module 914 can also comprise acceleration transducer, gyro sensor, Magnetic Sensor, pressure transducer or temperature sensor.
Communications component 916 is configured to the communication being convenient to wired or wireless mode between device 900 and other equipment.Device 900 can access the wireless network based on communication standard, as WiFi, 2G or 3G, or their combination.In one exemplary embodiment, communication component 916 receives from the broadcast singal of external broadcasting management system or broadcast related information via broadcast channel.In one exemplary embodiment, described communication component 916 also comprises near-field communication (NFC) module, to promote junction service.Such as, can based on radio-frequency (RF) identification (RFID) technology in NFC module, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology, bluetooth (BT) technology and other technologies realize.
In the exemplary embodiment, device 900 can be realized, for performing said method by one or more application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD) (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components.
In the exemplary embodiment, additionally provide a kind of non-transitory computer-readable recording medium comprising instruction, such as, comprise the storer 904 of instruction, above-mentioned instruction can perform said method by the processor 920 of device 900.Such as, described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage devices etc.
Those skilled in the art, at consideration instructions and after putting into practice disclosed herein disclosing, will easily expect other embodiment of the present disclosure.The application is intended to contain any modification of the present disclosure, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present disclosure and comprised the undocumented common practise in the art of the disclosure or conventional techniques means.Instructions and embodiment are only regarded as exemplary, and true scope of the present disclosure and spirit are pointed out by claim below.
Should be understood that, the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.The scope of the present disclosure is only limited by appended claim.
Claims (11)
1. a control method for backlight intensity, is characterized in that, described method comprises:
Detect whether present displayed content is complete black picture;
If detect, present displayed content is described complete black picture, then reduce backlight intensity;
If detect, present displayed content is the black picture of non-fully, then keep described backlight intensity.
2. the control method of backlight intensity according to claim 1, is characterized in that, described reduction backlight intensity, comprising:
Described backlight intensity is reduced in the mode of gradual change.
3. the control method of backlight intensity according to claim 1, is characterized in that, described method also comprises:
After described reduction backlight intensity, if detect, present displayed content switches to the black picture of non-fully, then described backlight intensity is returned to green strength.
4. the control method of the backlight intensity according to any one of claim 1-3, is characterized in that, described method also comprises:
After the described backlight intensity of described maintenance, if detect, present displayed content switches to complete black picture, then reduce described backlight intensity.
5. the control method of backlight intensity according to claim 1, is characterized in that, whether described detection present displayed content is complete black picture, comprising:
Whether all pixels adding up present displayed content corresponding are black;
If be black, then detect that present displayed content is complete black picture;
If be not black, then detect that present displayed content is the black picture of non-fully.
6. a regulating device for backlight intensity, is characterized in that, described device comprises:
Detection module, is configured to detect whether present displayed content is complete black picture;
Reduce module, if be configured to described detection module to detect that present displayed content is described complete black picture, then reduce backlight intensity;
Keep module, if be configured to described detection module to detect that present displayed content is the black picture of non-fully, then keep described backlight intensity.
7. the regulating device of backlight intensity according to claim 6, is characterized in that, described reduction module, is configured to:
Described backlight intensity is reduced in the mode of gradual change.
8. the regulating device of backlight intensity according to claim 6, is characterized in that, described device also comprises:
Detect and recover module, be configured to after described reduction module reduces backlight intensity, if detect, present displayed content switches to the black picture of non-fully, then described backlight intensity is returned to green strength.
9. the regulating device of the backlight intensity according to any one of claim 6-8, is characterized in that, described device also comprises:
Detect and reduce module, be configured to after described maintenance module keeps described backlight intensity, if detect, present displayed content switches to complete black picture, then reduce described backlight intensity.
10. the regulating device of backlight intensity according to claim 6, is characterized in that, described detection module comprises:
Statistics submodule, whether all pixels being configured to add up present displayed content corresponding are black;
First detection sub-module, all pixels that described statistics submodule counts present displayed content corresponding if be configured to are black, then detect that present displayed content is complete black picture;
Second detection sub-module, all pixels that described statistics submodule counts present displayed content corresponding if be configured to are not black, then detect that present displayed content is the black picture of non-fully.
The regulating device of 11. 1 kinds of backlight intensity, is characterized in that, comprising:
Processor;
For the storer of storage of processor executable instruction;
Wherein, described processor is configured to:
Detect whether present displayed content is complete black picture;
If detect, present displayed content is described complete black picture, then reduce backlight intensity;
If detect, present displayed content is the black picture of non-fully, then keep described backlight intensity.
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| CN104575406A (en) * | 2015-02-09 | 2015-04-29 | 京东方科技集团股份有限公司 | Method for driving backlight plate as well as time sequence controller and backlight driving plate |
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| CN105513542B (en) * | 2016-01-13 | 2018-07-24 | 昆山龙腾光电有限公司 | A kind of backlight drive device and method of liquid crystal display device |
| CN107507577A (en) * | 2016-06-14 | 2017-12-22 | 青岛海信电器股份有限公司 | Method for controlling backlight thereof and device |
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