CN109891488A - A kind of backlight driving method and its device - Google Patents

A kind of backlight driving method and its device Download PDF

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Publication number
CN109891488A
CN109891488A CN201780064647.2A CN201780064647A CN109891488A CN 109891488 A CN109891488 A CN 109891488A CN 201780064647 A CN201780064647 A CN 201780064647A CN 109891488 A CN109891488 A CN 109891488A
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China
Prior art keywords
led light
target
screen area
backlight
target screen
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CN201780064647.2A
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Chinese (zh)
Inventor
丁鹏
吴博
黄波
孙宇飞
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

A kind of backlight driving method and its device are used for local display backlight drive liquid crystal display.Backlight driving method includes: to receive target screen area idsplay order (201), and target screen area idsplay order is used to indicate displaying target screen area；One or more target LED light (202) are determined according to target screen area, and one or more target LED light are used to provide backlight to target screen area；Start one or more target LED light (203).

Description

A kind of backlight driving method and its device
This application claims Patent Office of the People's Republic of China was submitted on 2 4th, 2017, application No. is 201710064978.8, the priority of the Chinese patent application of entitled " a kind of backlight module and LCD liquid crystal display ", entire contents are hereby incorporated by reference in the application.
Technical field
The present invention relates to field of display devices more particularly to a kind of backlight driving methods and its device.
Background technique
With the popularization of intelligent terminals, the function of display screen is stronger and stronger, including " Always ON " display function, can not having to open entire display screen, and user is it is seen that notice, missed call, information, mail etc., to realize low-power consumption.
Instantly, " Always ON " function can be in active matrix organic light emitting diode panel (Active-matrix organic light emitting diode, AMOLED it) is realized in screen, the diode matrix that " Always ON " function of AMOLED is shone by the active that light emitting diode is formed, it can locally light, on the brightness in other regions without influence, in the case where going out screen, screen regional region is shown.
But but since backlight drive liquid crystal display is whole face light guide sheet, the luminous diode matrix of the active that " Always ON " function of no image of Buddha AMOLED is formed by light emitting diode realizes that part is lighted.
Summary of the invention
The embodiment of the invention provides a kind of backlight driving method and its devices, are used for local display backlight drive liquid crystal display.
In view of this, the application first aspect provides a kind of backlight driving method, it is used for backlight drive liquid crystal display, which includes backlight group mould, which includes one or more LED lamps, this method comprises:
Target screen area idsplay order is received, which is used to indicate displaying target screen area；Determine that one or more target LED light, the one or more target LED light are used to provide backlight to the target screen area according to the target screen area；Start the one or more target LED light.
In some possible embodiments, when the intelligent terminal of built-in backlight drive display device receives the instruction of displaying target screen area, such as show current time or date or weather, it only needs to show small portion region, that is target screen area, target screen area idsplay order can be sent to the backlight drive display device, which, which is used to indicate, shows the target screen area.In some possible embodiments, target screen area idsplay order can be sent in the pre-set time, such as when alarm clock is rung, the target screen area idsplay order that other equipment are sent can also be received when intelligent terminal, such as when receiving information, mail, incoming call, herein without limitation.
When one or more target LED light have been determined, it then can be by driving the channel start one or more LED light group with one or more, wherein, a lamp group in the driving channel connection backlight driving chip and the one or more LED light group in one or more driving channel.
In conjunction with the application's in a first aspect, the first embodiment of the first aspect of the application, comprising:
One or more LED light groups are determined according to the target screen area, it, should as the one or more target LED light Any lamp group in one or more LED light groups is concatenated m LED light.
In conjunction with the application's in a first aspect, second of embodiment of the first aspect of the application, comprising:
By driving the channel start one or more LED light group with one or more, wherein the one or more drives a driving channel connection backlight driving chip in channel and a lamp group in the one or more LED light group.
In conjunction with the application's in a first aspect, the third embodiment of the first aspect of the application, comprising:
Determine that one or more LED light groups, any lamp group in the one or more LED light group are concatenated m LED light according to the target screen area；One or more LED light that any lamp group in the one or more LED light group is determined according to the target screen area, as the one or more target LED light.
In some possible embodiments, the one or more target lamp group and target screen area are not completely overlapped, perhaps certain LED light in target lamp group are not in target screen area, it does not need to show, the LED light that then can only determine target screen region overlay is as target LED light, other lamps of LED light group are shown where not needing the LED light.Therefore, after one or more LED light groups have been determined, it can continue one or more LED light that any lamp group in the one or more LED light group is determined according to target screen area, as one or more target LED light, so that can be with the pixel of coverage goal screen area with least target LED light.
In conjunction with the application's in a first aspect, the 4th kind of embodiment of the first aspect of the application, comprising:
Determine that several third parties drive channel, which drives either objective LED light in any of channel driving channel connection backlight driving chip and the one or more target LED light；The channel start one or more target LED light is driven by several third parties.
In embodiments of the present invention, when the part LED light in one or more concatenated LED light groups has been determined, since the corresponding driving channel of the LED light group is only capable of one entire LED light group of driving, therefore channel start can be driven by third party, as shown in Figure 1, when driving channel n when not applicable, and using driving channel n+1, two LED light in LED light group n can be started.
The application second aspect provides a kind of backlight drive device, is used for backlight drive liquid crystal display, which includes backlight group mould, which includes one or more LED lamps, this method comprises:
Receiving module, for receiving target screen area idsplay order, which is used to indicate displaying target screen area；Determining module, for determining that one or more target LED light, the one or more target LED light are used to provide backlight to the target screen area according to the target screen area；Starting module, for starting the one or more target LED light.
In conjunction with the second aspect of the application, the first embodiment of the second aspect of the application, which includes:
First determines submodule, and for determining one or more LED light groups according to the target screen area, as the one or more target LED light, any lamp group in the one or more LED light group is concatenated m LED light.
In conjunction with the second aspect of the application, second of embodiment of the second aspect of the application, which includes:
First promoter module, for by driving the channel start one or more LED light group with one or more, wherein the one or more drives a driving channel connection backlight driving chip in channel and a lamp group in the one or more LED light group.
In conjunction with the second aspect of the application, the third embodiment of the second aspect of the application, which includes:
Second determines submodule, for determining that one or more LED light groups, any lamp group in the one or more LED light group are concatenated m LED light according to the target screen area；Third determines submodule, for according to the target screen area Domain determines one or more LED light of any lamp group in the one or more LED light group, as the one or more target LED light.
In conjunction with the second aspect of the application, the 4th kind of embodiment of the second aspect of the application, which includes:
4th determines submodule, and for determining that several third parties drive channel, which drives either objective LED light in any of channel driving channel connection backlight driving chip and the one or more target LED light；Second promoter module, for driving the channel start one or more target LED light by several third parties.
The application third aspect provides a kind of backlight drive device, is used for backlight drive liquid crystal display, which includes backlight group mould, which includes one or more LED lamps characterized by comprising
Receiver, processor and memory；The receiver, for receiving target screen area idsplay order, which is used to indicate displaying target screen area；The processor starts the one or more target LED light for determining that one or more target LED light, the one or more target LED light are used to provide backlight to the target screen area according to the target screen area；The memory, for storing program, the target screen area idsplay order, the one or more target LED light.
The application fourth aspect provides a kind of backlight drive liquid crystal display, built-in such as above-mentioned backlight drive device.
The 5th aspect of the application provides a kind of intelligent terminal, built-in above-mentioned backlight drive liquid crystal display.
The another aspect of the application provides a kind of computer readable storage medium, and instruction is stored in the computer readable storage medium, when run on a computer, so that computer executes the method that above-mentioned various aspects are somebody's turn to do.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
In backlight drive liquid crystal display, the backlight drive liquid crystal display includes backlight group mould, the backlight group mould includes one or more LED lamps, by receiving target screen area idsplay order, the target screen area idsplay order is used to indicate displaying target screen area, then one or more target LED light are determined according to the target screen area, the one or more target LED light is used to provide backlight to the target screen area, then start the one or more target LED light, the part for realizing backlight drive liquid crystal display is lighted.
Detailed description of the invention
Fig. 1 is the block schematic illustration of backlight drive liquid crystal display in the embodiment of the present application；
Fig. 2 is backlight driving method one embodiment schematic diagram in the embodiment of the present application；
Fig. 3 is backlight driving method one embodiment schematic diagram in the embodiment of the present application；
Fig. 4 is one embodiment schematic diagram of backlight drive device in the embodiment of the present application；
Fig. 5 is one embodiment schematic diagram of backlight drive device in the embodiment of the present application；
Fig. 6 is another embodiment schematic diagram of backlight drive device in the embodiment of the present application；
Fig. 7 is another embodiment schematic diagram of backlight drive device in the embodiment of the present application；
Fig. 8 is another embodiment schematic diagram of backlight drive device in the embodiment of the present application；
Fig. 9 is one embodiment schematic diagram of backlight drive device in the embodiment of the present application.
Specific embodiment
The embodiment of the invention provides a kind of backlight driving method and its devices, are used for local display backlight drive liquid crystal display.
Example scheme in order to enable those skilled in the art to better understand the present invention, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Description and claims of this specification and the (if present)s such as term " first " in above-mentioned attached drawing, " second ", " third ", " the 4th " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be implemented with the sequence other than the content for illustrating or describing herein.Furthermore, term " includes " and " having " and their any deformation, it is intended to cover and non-exclusive includes, such as, the process, method, system, product or equipment for containing a series of steps or units those of are not necessarily limited to be clearly listed step or unit, but may include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As shown in Figure 1, being a kind of block schematic illustration of backlight drive device, which is used for backlight drive liquid crystal display.The backlight drive device includes backlight group mould and backlight driving chip, the backlight group mould is used to provide backlight for the backlight drive liquid crystal display, including one or more LED light, in some possible embodiments, which can form n group LED light, obtain n LED light group, wherein, each LED light group can be m concatenated LED light, as shown in Figure 1, including lamp group 1, lamp group 2, lamp group 3 to lamp group n.In some possible embodiments, each LED light group can connect backlight driving chip by a driving channel, backlight driving chip starts the LED light in corresponding LED light group by driving channel, as shown in Figure 1, driving channel 1, driving channel 2, driving channel 3 to driving channel n are for starting the lamp group 1, lamp group 2, lamp group 3 to lamp group n.In some possible embodiments, drive the quantity in channel that can be more than the quantity of LED light group, the quantity of LED light group can also be equal to, as shown in Figure 1, it drives channel 1 to driving channel n+1, there is n+1 driving channel, lamp group only has n, according to Fig. 1, driving channel n+1 is used to drive two LED light in lamp group n.
In embodiments of the present invention, a pixel can correspond to a LED light, can also be with the corresponding LED light of multiple pixels, herein without limitation.In some possible embodiments, a LED light can be a diode, or other luminous technologies, herein without limitation.
It should be noted that the display board for being usually used in electronic watch and calculator of the liquid crystal display material in backlight drive liquid crystal display, principle is to convert electrical signals into the visible signals such as character, image by the electrooptic effect of liquid crystal.Liquid crystal is under normal circumstances, its molecules align is very orderly, seem as clear as crystal, once plus after DC electric field, the arrangement of molecule is disturbed, and a part of liquid crystal can change the direction of propagation of light, and the polaroid before and after liquid crystal display can stop the light of specific direction, to generate the difference of shade, thus it can show number and image.
In addition, it should be noted that, " Always ON " function of backlight drive liquid crystal display is realized through the invention, referring to can allow intelligent terminal in the standby state for putting out screen, always sub-fraction pixel is lighted, user is almost not necessarily to any operation, can be directly viewable the information such as the clock being displayed on the screen, calendar, electricity, picture, notice, and the screen for being equivalent to intelligent terminal is always on the same.In a meeting such as user, or hand can not be extracted out carry out operating handset, as long as can easily check the relevant informations such as the time shown always on screen at a glance, because of the elemental area very little lighted, not too much power consumption.In addition, in some possible embodiments, user can be with " Always ON " function of customized screen display content.There is " Always ON " function, it is possible to reduce the step of user picks up mobile phone, clicks the operation such as power supply or Home key and time.
Since " Always ON " function can be in active matrix organic light emitting diode panel (Active-matrix organic light emitting diode, AMOLED it) is realized in screen, " Always ON " function of AMOLED is tubular by light-emitting diodes At the luminous diode matrix of active, the backlight drive liquid crystal display for whole face light guide sheet is not applicable.
Therefore, in backlight drive liquid crystal display, the backlight drive liquid crystal display includes backlight group mould, the backlight group mould includes one or more LED lamps, the embodiment of the present application is by receiving target screen area idsplay order, the target screen area idsplay order is used to indicate displaying target screen area, then one or more target LED light are determined according to the target screen area, the one or more target LED light is used to provide backlight to the target screen area, then start the one or more target LED light, it lights the part for realizing backlight drive liquid crystal display.
For ease of understanding, the detailed process in the embodiment of the present application is described below, according to the difference for determining target LED light, will be specifically separately illustrated below.
One, determine target LED light group as target LED light.
Referring to Fig. 2, backlight driving method one embodiment includes: in the embodiment of the present application
201, target screen area idsplay order is received, which is used to indicate displaying target screen area.
In some possible embodiments, when the intelligent terminal of built-in backlight drive display device receives the instruction of displaying target screen area, such as show current time or date or weather, it only needs to show small portion region, that is target screen area, target screen area idsplay order can be sent to the backlight drive display device, which, which is used to indicate, shows the target screen area.In some possible embodiments, target screen area idsplay order can be sent in the pre-set time, such as when alarm clock is rung, the target screen area idsplay order that other equipment are sent can also be received when intelligent terminal, such as when receiving information, mail, incoming call, herein without limitation.
In some possible embodiments, target screen area can be several pixels, it is also possible to the region of some rectangle or round either other rules or irregular one or more figures, as long as can show needs content to be shown, herein without limitation.
202, one or more target LED light are determined according to the target screen area.
In embodiments of the present invention, when receiving target screen area idsplay order, target LED light to be shown can be determined according to target screen area.
In some possible embodiments, backlight group mould may include multiple LED light groups, and each lamp group has one or more LED light, in general, the quantity of the LED light of each lamp group is equal, in other feasible embodiments, can also be unequal, herein without limitation.
When backlight group mould be multiple LED light groups when, and each LED light group be concatenated m LED light when, can according to the target screen area determine one or more LED light groups, using the LED light in the one or more LED light group as the one or more target LED light.
It should be noted that, in embodiments of the present invention, backlight group mould can be constituted with multiple LED light, optionally, these lamps can form the identical lamp group of multiple quantity, lamp in lamp group is connected in series to, such as lamp group a, b, c, d lamp, wherein, each lamp group can connect a channel, the channel connects backlight driving chip, and the target screen area shown as needed, which determines, needs LED light to be started, and determines the brightness of starting.
It in some possible embodiments, can include the target screen area, the area energy coverage goal screen area of the coverings such as only LED for minimal number of LED light if the LED light in backlight group mould forms multiple lamp groups.
203, start the one or more target LED light.
It, then can be by driving channel start this or more with one or more when one or more target LED light have been determined A LED light group, wherein the one or more drives a driving channel connection backlight driving chip in channel and a lamp group in the one or more LED light group.
In some possible embodiments, backlight driving chip can connect multiple driving channels by connector, can also be directly connected to driving channel, herein without limitation, the output plus terminal of backlight drive is connected to backlight module by driving channel.
In some possible embodiments, different LED light groups can also be started by way of timesharing drives, i.e., does not start all lamp groups simultaneously, is staggered on the time, light each lamp group in turn to realize the purpose for reducing brightness, while reducing power consumption.
In some possible embodiments, backlight driving chip can connect driving channel by connector, which can also connect battery by connector.Backlight driving chip can also connect controller by connector, control signal such as SDA, SCL, PWM, HWEN, BL_ADJ of backlight driving chip etc. can be sent to master controller by connector, instruction or the control signal of master controller can also be received by connector, herein without limitation.In some possible embodiments, the Communication Control between backlight driving chip and master controller can be the communication controls such as I2C, SPI, I3C.In some possible embodiments, connector can be connector modules, be also possible to independent connector, herein without limitation.In embodiments of the present invention, controller can control backlight driving chip, and then the control to backlight module.It should be noted that the Communication Control between backlight driving chip and master controller can be the communication controls such as I2C, SPI, I3C, herein without limitation.
Two, the target LED light in target lamp group is determined.
Referring to Fig. 3, another embodiment of backlight driving method of the embodiment of the present invention includes:
301, target screen area idsplay order is received, which is used to indicate displaying target screen area.
Step 301 is identical as the step 201 of above-described embodiment in the present embodiment, does not repeat herein.
302, one or more LED light groups are determined according to the target screen area.
Step 302 is identical as the step 202 of above-described embodiment in the present embodiment, does not repeat herein.
303, one or more LED light that any lamp group in the one or more LED light group is determined according to the target screen area, as the one or more target LED light.
In some possible embodiments, the one or more target lamp group and target screen area are not completely overlapped, perhaps certain LED light in target lamp group are not in target screen area, it does not need to show, the LED light that then can only determine target screen region overlay is as target LED light, other lamps of LED light group are shown where not needing the LED light.Therefore, after one or more LED light groups have been determined, it can continue one or more LED light that any lamp group in the one or more LED light group is determined according to target screen area, as one or more target LED light, so that can be with the pixel of coverage goal screen area with least target LED light.
304, determine that several third parties drive channel, which drives either objective LED light in any of channel driving channel connection backlight driving chip and the one or more target LED light.
305, the channel start one or more target LED light is driven by several third parties.
In embodiments of the present invention, when the part LED light in one or more concatenated LED light groups has been determined, since the corresponding driving channel of the LED light group is only capable of one entire LED light group of driving, therefore channel start can be driven by third party, as shown in Figure 1, when driving channel n when not applicable, and using driving channel n+1, two LED light in LED light group n can be started.
Backlight driving method in the embodiment of the present application is described above, the backlight drive in the embodiment of the present application is filled below It sets and is described.
Referring to Fig. 4, another embodiment of backlight drive device of the embodiment of the present invention 400 includes:
Receiving module 401, for receiving target screen area idsplay order, which is used to indicate displaying target screen area.
Determining module 402, for determining that one or more target LED light, the one or more target LED light are used to provide backlight to the target screen area according to the target screen area.
Starting module 403, for starting the one or more target LED light.
Referring to FIG. 5, the determining module 402 includes:
First determines submodule 4021, and for determining one or more LED light groups according to the target screen area, as the one or more target LED light, any lamp group in the one or more LED light group is concatenated m LED light.
Referring to FIG. 6, the starting module 403 includes:
First promoter module 4031, for by driving the channel start one or more LED light group with one or more, wherein, a lamp group in the driving channel connection backlight driving chip and the one or more LED light group in one or more driving channel.
Referring to FIG. 7, the determining module 402 includes:
Second determines submodule 4022, for determining that one or more LED light groups, any lamp group in the one or more LED light group are concatenated m LED light according to the target screen area.
Third determines submodule 4023, for determining one or more LED light of any lamp group in the one or more LED light group according to the target screen area, as the one or more target LED light.
Referring to FIG. 8, the starting module 403 further include:
4th determines submodule 4032, and for determining that several third parties drive channel, which drives either objective LED light in any of channel driving channel connection backlight driving chip and the one or more target LED light.
Second promoter module 4033, for driving the channel start one or more target LED light by several third parties.
The backlight drive device 400 in the embodiment of the present application is described from the angle of modular functionality entity above, the backlight drive device 500 in the embodiment of the present application is described from the angle of hardware handles below, please refers to Fig. 9:
Receiver 501, processor 502 and memory 503.
The receiver 501, for receiving target screen area idsplay order, which is used to indicate displaying target screen area.
The processor 502 starts the one or more target LED light for determining that one or more target LED light, the one or more target LED light are used to provide backlight to the target screen area according to the target screen area.
The memory 503, for storing program, the target screen area idsplay order, the one or more target LED light.
In some possible embodiments, present invention also provides a kind of liquid crystal display, the liquid crystal display is built-in such as above-mentioned backlight drive device 400 or 500.
In some possible embodiments, present invention also provides a kind of intelligent terminal, the liquid crystal display of above-mentioned built-in backlight drive device 400 or 500 built in the intelligent terminal.
In the above-described embodiments, it can be realized wholly or partly by software, hardware, firmware or any combination thereof.When implemented in software, it can entirely or partly realize in the form of a computer program product.
The computer program product includes one or more computer instructions.When loading on computers and executing the computer program instructions, entirely or partly generate according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or it is transmitted from a computer readable storage medium to another computer readable storage medium, for example, the computer instruction can be transmitted from a web-site, computer, server or data center by wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or data center.The computer readable storage medium can be any usable medium that computer can store or include the data storage devices such as one or more usable mediums integrated server, data center.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD)) etc..
It is apparent to those skilled in the art that for convenience and simplicity of description, the specific work process of the system, apparatus, and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic or disk.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And these are modified or replaceed, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (14)

  1. A kind of backlight driving method is used for backlight drive liquid crystal display, and the backlight drive liquid crystal display includes backlight group mould, and the backlight group mould includes one or more LED lamps characterized by comprising
    Target screen area idsplay order is received, the target screen area idsplay order is used to indicate displaying target screen area；
    Determine that one or more target LED light, one or more of target LED light are used to provide backlight to the target screen area according to the target screen area；
    Start one or more of target LED light.
  2. Method according to claim 1, which is characterized in that described to determine that one or more target LED light include: according to the target screen area
    One or more LED light groups are determined according to the target screen area, and as one or more of target LED light, any lamp group in one or more of LED light groups is concatenated m LED light.
  3. Method according to claim 2, which is characterized in that the one or more of target LED light of the starting include:
    By driving the one or more of LED light groups of channel start with one or more, wherein the lamp group in a driving channel connection backlight driving chip and one or more of LED light groups in one or more of driving channels.
  4. Method according to claim 1, which is characterized in that described to determine that one or more target LED light include: according to the target screen area
    Determine that one or more LED light groups, any lamp group in one or more of LED light groups are concatenated m LED light according to the target screen area；
    One or more LED light that any lamp group in one or more of LED light groups is determined according to the target screen area, as one or more of target LED light.
  5. Method according to claim 4, which is characterized in that the one or more of target LED light of the starting include:
    Determine that several third parties drive channel, several described third parties drive either objective LED light in any of channel driving channel connection backlight driving chip and one or more of target LED light；
    The one or more of target LED light of channel start are driven by several described third parties.
  6. A kind of backlight drive device is used for backlight drive liquid crystal display, and the backlight drive liquid crystal display includes backlight group mould, and the backlight group mould includes one or more LED lamps characterized by comprising
    Receiving module, for receiving target screen area idsplay order, the target screen area idsplay order is used to indicate displaying target screen area；
    Determining module, for determining that one or more target LED light, one or more of target LED light are used to provide backlight to the target screen area according to the target screen area；
    Starting module, for starting one or more of target LED light.
  7. Device according to claim 6, which is characterized in that the determining module includes:
    First determines submodule, and for determining one or more LED light groups according to the target screen area, as one or more of target LED light, any lamp group in one or more of LED light groups is concatenated m LED light.
  8. Device according to claim 7, which is characterized in that the starting module includes:
    First promoter module is used for by driving the one or more of LED light groups of channel start with one or more, In, the lamp group in a driving channel connection backlight driving chip and one or more of LED light groups in one or more of driving channels.
  9. Device according to claim 6, which is characterized in that the determining module includes:
    Second determines submodule, for determining that one or more LED light groups, any lamp group in one or more of LED light groups are concatenated m LED light according to the target screen area；
    Third determines submodule, for determining one or more LED light of any lamp group in one or more of LED light groups according to the target screen area, as one or more of target LED light.
  10. Device according to claim 9, which is characterized in that the starting module includes:
    4th determines submodule, and for determining that several third parties drive channel, several described third parties drive either objective LED light in any of channel driving channel connection backlight driving chip and one or more of target LED light；
    Second promoter module, for driving the one or more of target LED light of channel start by several described third parties.
  11. A kind of backlight drive device is used for backlight drive liquid crystal display, and the backlight drive liquid crystal display includes backlight group mould, and the backlight group mould includes one or more LED lamps characterized by comprising
    Receiver, processor and memory；
    The receiver, for receiving target screen area idsplay order, the target screen area idsplay order is used to indicate displaying target screen area；
    The processor starts one or more of target LED light for determining that one or more target LED light, one or more of target LED light are used to provide backlight to the target screen area according to the target screen area；
    The memory, for storing program, the target screen area idsplay order, one or more of target LED light.
  12. A kind of backlight drive liquid crystal display, the built-in backlight drive device as described in claim 6-11.
  13. A kind of intelligent terminal, built-in backlight drive liquid crystal display as claimed in claim 12.
  14. A kind of computer readable storage medium, including instruction, when run on a computer, so that computer executes method as claimed in claims 1-5.
CN201780064647.2A 2017-02-04 2017-05-31 A kind of backlight driving method and its device Pending CN109891488A (en)

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CN201710064978 2017-02-04
PCT/CN2017/086589 WO2018141145A1 (en) 2017-02-04 2017-05-31 Backlight driving method and device therefor

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